CN212718594U - Male joint assembly and quick joint with same - Google Patents
Male joint assembly and quick joint with same Download PDFInfo
- Publication number
- CN212718594U CN212718594U CN202021869185.7U CN202021869185U CN212718594U CN 212718594 U CN212718594 U CN 212718594U CN 202021869185 U CN202021869185 U CN 202021869185U CN 212718594 U CN212718594 U CN 212718594U
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- Prior art keywords
- valve core
- assembly
- male
- piston
- air inlet
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- 210000001503 joint Anatomy 0.000 claims description 45
- 238000009434 installation Methods 0.000 claims description 28
- 230000009471 action Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 230000008878 coupling Effects 0.000 claims description 19
- 230000000903 blocking effect Effects 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 10
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- 238000004891 communication Methods 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 36
- 229910000831 Steel Inorganic materials 0.000 description 28
- 239000010959 steel Substances 0.000 description 28
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- 238000006073 displacement reaction Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 241000237503 Pectinidae Species 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010063659 Aversion Diseases 0.000 description 1
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- 238000001125 extrusion Methods 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model provides a male joint subassembly and set up its quick-operation joint relates to quick-operation joint technical field, and it is relatively poor to have solved the reliability of being connected between elastomeric element and the bearing structure in the current male joint, influences its sealing performance's technical problem. The male connector component comprises a tubular shell, a male valve core assembly, a first sealing element, a first elastic element and a mounting bracket, wherein the male valve core assembly, the first sealing element, the first elastic element and the mounting bracket are arranged in the tubular shell; the first elastic piece is elastically compressed and arranged between the male valve core assembly and the mounting bracket; the mounting bracket comprises a connecting plate, the middle of the connecting plate is provided with a via hole, the edge of the connecting plate extends in an axial direction in an inclined mode to form a supporting leg, the edge of the connecting plate extends in an axial direction away from the supporting leg to form an accommodating part, and the first end of the first elastic piece abuts against the connecting plate and is accommodated in the accommodating part. The first elastic piece is limited in the accommodating part and is not easy to shift, the connection reliability between the first elastic piece and the mounting bracket is improved, and the sealing performance of the male connector after non-conduction or truncation is ensured.
Description
Technical Field
The utility model belongs to the technical field of the quick-operation joint technique and specifically relates to a male joint subassembly and set up its quick-operation joint is related to.
Background
The quick connector is a connecting device for quickly connecting or disconnecting a flow path (such as a gas flow path and a liquid flow path) to realize quick assembly and disassembly, is widely applied to the air conditioning industry, such as the processes of vacuumizing an air conditioning outdoor unit, refrigerant filling, commodity inspection testing and the like, and can also be applied to the processes of water inspection, gas inspection, helium inspection and the like of a closed container (such as an air energy water heater inner container) and parts thereof or an auxiliary system.
In order to realize automatic and rapid operation, people design various rapid connector connection structures, and generally adopt that an elastic component is arranged in a male connector to realize sealing before connector butt joint and homing of a valve core after conduction operation. One end of the elastic member abuts against the valve element of the male connector, and the other end of the elastic member generally abuts against the housing of the male connector through a support structure in order not to affect the flow of the fluid. The connection reliability between the elastic component and the supporting structure is poor, the elastic component may slide, so that the elastic force is reduced to influence the sealing performance of the male joint before butt joint and influence the reliability of the quick joint.
When the conventional quick connector is communicated, the communicated gap between the valve core inside the male connector and the outer part is too small, the flow area is small, the flow of gas flowing through the gap between the valve core and the outer part is too small, and the waiting time is long when the processes of inflating, vacuumizing, filling and the like of a large container closed container or a system are carried out, so that the production efficiency of a product is influenced.
In addition, after the existing quick coupling is used for cutting off the fluid medium in the pipeline, the sealing performance of the inner side of the quick coupling is general, and for high-precision gas leakage detection, such as a fluorine system adopting refrigerant or helium leakage detection (generally, the whole leakage rate of the fluorine system is required to be not more than 1 × 10)-5L/s), adopt conventional quick-operation joint to connect and seal, often can appear leaking for a little, arouse the erroneous judgement of leak hunting easily, seriously influence staff's work efficiency and the output efficiency of product, also can lead to the waste of leak hunting gas and production material, improved production manufacturing cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a male joint subassembly and set up its quick-operation joint can solve the male joint that exists among the prior art in at least and be connected the reliability relatively poor between elastomeric element and the bearing structure, influence its sealing performance's technical problem. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a male joint component, including the tubulose casing and set up male valve core assembly, first sealing member, first elastic component and installing support in it, the tubulose casing includes interface and links up the interface, the male joint component has the on-state that opens the interface and the off-state that closes the interface; the first sealing element is sleeved on the male valve core assembly; the first elastic piece is elastically compressed and arranged between the male valve core assembly and the mounting bracket, so that the mounting bracket abuts against the inner middle section of the tubular shell and the first sealing piece abuts against the opposite interface of the tubular shell to form the cut-off state; the male valve core assembly can axially slide in the tubular shell under the action of external force to open the butt joint port to form the conduction state;
the mounting bracket comprises a connecting plate, the middle of the connecting plate is provided with a through hole, the edge of the connecting plate axially extends in an inclined manner to form a support leg, the wall surface of the support leg is provided with a through hole, and the support leg is abutted against the tubular shell; the edge of the connecting plate and the support leg axially extend away from the ground to form an accommodating part, and the first end of the first elastic piece abuts against the connecting plate and is accommodated in the accommodating part.
Optionally, a first annular tapered surface is formed at the mating interface, and the first sealing element is sleeved on the male valve core assembly near the first annular tapered surface; in the shut-off state, the first seal abuts against the first annular tapered surface.
Optionally, the male valve core assembly includes a first conical surface section, a first pipe section, a second conical surface section, a first blocking portion, a second pipe section, and a third pipe section, which are sequentially disposed, the first sealing member is sleeved on the second conical surface section, the first elastic member is disposed on the second pipe section, a second end of the first elastic member abuts against the first blocking portion, and the third pipe section penetrates through the via hole and can axially slide in the via hole.
Optionally, a plurality of auxiliary holes are formed in the connecting plate, and the plurality of auxiliary holes are located on the periphery of the via hole.
Optionally, the outer circumferential side of the tubular housing is provided with a positioning groove.
The utility model provides a pair of quick-operation joint, including female joint subassembly and above arbitrary the male joint subassembly.
Optionally, the female joint component includes an outer housing, a valve core front seat, a female valve core assembly, a second sealing element, a second elastic element, a valve core rear seat, a connecting pipe, a locking mechanism, a piston component, and a pneumatic structure, the structure of the female valve core assembly is the same as that of the male valve core assembly, and the female joint component is locked and fixed with the male joint component by the locking mechanism; the front valve core seat is tubular, the inner wall of the front valve core seat is provided with a second annular conical surface, the second sealing element is sleeved at the position, close to the second annular conical surface, of the main valve core assembly, the rear valve core seat is arranged at one end, far away from the second sealing element, of the main valve core assembly, and the second elastic element is elastically arranged between the compression type main valve core assembly and the rear valve core seat; an avoidance part is arranged at one end, close to the female valve element assembly, of the connecting pipe, a threaded connecting part is arranged on one side, far away from the second annular conical surface, of the valve element front seat, the valve element front seat is fixedly connected with the connecting pipe through the threaded connecting part, and the valve element rear seat is limited and fixed in the avoidance part; the second sealing element abuts against the second annular conical surface to close the female joint component, and the female valve core assembly can move axially under the action of external force to enable the second sealing element to be separated from the annular conical surface to open the female joint component;
a piston chamber is formed in the outer shell, the piston chamber is communicated with the pneumatic structure, and the piston assembly is in transmission connection with the connecting pipe; the piston assembly can move in the piston cavity under the action of the pneumatic power introduced by the pneumatic structure to drive the connecting pipe, and further drive the female valve element assembly and the valve element front seat to move towards the direction of the male connector assembly.
Optionally, the pneumatic structure comprises a butt joint air inlet cavity and a conduction air inlet cavity, the butt joint air inlet cavity is arranged on the outer peripheral surface of the outer shell and can be communicated with an external air source, the butt joint air inlet cavity is in transmission connection with the locking mechanism through a pipeline, and the conduction air inlet cavity is communicated with the piston cavity through a pipeline.
Optionally, the piston assembly comprises a first piston and a second piston, the piston chamber comprises a first piston chamber and a second piston chamber, the first piston is slidably disposed in the first piston chamber, and the second piston is slidably disposed in the second piston chamber; a first air inlet cavity is formed on one side, close to the conduction air inlet cavity, of the first piston, and a second air inlet cavity is formed on one side, close to the first piston, of the second piston; the conduction air inlet cavity is communicated with the first air inlet cavity through a pipeline, and the first piston chamber is communicated with the first air inlet cavity; the second piston chamber is communicated with the second air inlet cavity, and a through air passage is arranged between the first air inlet cavity and the second air inlet cavity.
Optionally, the locking mechanism includes a sleeve, a third elastic element, a sleeve chuck and a limiting ball, the sleeve chuck is arranged outside the front seat of the valve core, the sleeve is provided with a mounting hole, and the limiting ball is placed in the mounting hole; the outer shell is internally provided with a control channel communicated with the butt joint air inlet cavity, and the clamping sleeve is slidably sleeved outside the sleeve and positioned in the control channel; the clamping sleeve comprises a pressing end, an installation step is formed on the outer wall of the clamping sleeve, one end of the third elastic piece is arranged on the installation step, and the pressing end is correspondingly arranged in the installation hole; and a positioning groove is formed in the outer surface of the male joint component and is matched with the limiting ball.
Optionally, the outer casing includes a base, a first connecting seat, a second connecting seat, a third connecting seat and a rear cover, which are detachably and fixedly connected to each other, an inlet of the butt-joint air inlet cavity is opened in the first connecting seat, and the control channel is formed between the first connecting seat and the sleeve; the sleeve, the second connecting seat and the valve core front seat are encircled to form a second piston chamber, the second connecting seat, the third connecting seat and the connecting pipe are encircled to form a first piston chamber, and the air passage is formed in the second connecting seat; the inlet of the conduction air inlet cavity is arranged on the rear cover.
Optionally, the quick coupling further includes a sealing assembly, the sealing assembly includes a first sealing ring, a second sealing ring, a third sealing ring, a fourth sealing ring, a fifth sealing ring, a sixth sealing ring, a seventh sealing ring, an eighth sealing ring, a ninth sealing ring, a tenth sealing ring, and an eleventh sealing ring, the first sealing ring is disposed on a contact surface between the first connecting seat and the sleeve, and the second sealing ring is disposed on a contact surface between the sleeve and the sleeve; the third sealing ring is arranged on a contact surface between the valve core front seat and the male joint component; the fourth sealing ring is arranged on a contact surface between the sleeve and the first connecting seat; the fifth sealing ring is arranged on a contact surface between the front seat of the valve core and the connecting pipe; the sixth sealing ring is arranged on a contact surface between the second piston and the connecting pipe; the seventh sealing ring is arranged on a contact surface between the second connecting seat and the connecting pipe; the eighth sealing ring is arranged on a contact surface between the first piston and the connecting pipe; the ninth sealing ring is arranged on a contact surface between the second connecting seat and the third connecting seat; the tenth sealing ring is arranged on a first contact surface between the third connecting seat and the rear cover; the eleventh sealing ring is arranged on a second contact surface between the third connecting seat and the rear cover.
The utility model provides a pair of public joint subassembly and set up its quick-operation joint, public joint subassembly includes the tubulose casing and sets up the public case assembly in it, first sealing member, first elastic component and installing support, first elastic component is set up by elastic compression between public case assembly and installing support, the edge of the connecting plate of installing support deviates from ground axial extension with the stabilizer blade and has formed the portion of holding, the first end of first elastic component supports tightly and by the holding in the portion of holding, first elastic component is spacing in the portion of holding and difficult aversion, the reliability of being connected between first elastic component and the installing support has been improved, guaranteed that first elastic component reliably supports tightly between public case assembly and installing support, the leakproofness after having guaranteed that public joint subassembly does not switch on or cuts off, thereby the reliability of the quick-operation joint who sets up this public joint subassembly has been improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a male connector assembly according to an embodiment of the present invention, in which arrows indicate the mating direction;
fig. 2 is a schematic perspective view of a mounting bracket according to an embodiment of the present invention;
fig. 3 is a schematic half sectional view of a female joint assembly of a quick coupling according to an embodiment of the present invention;
FIG. 4 is a front view of the sleeve;
FIG. 5 is a schematic view of the cross-sectional structure A-A of FIG. 4;
FIG. 6 is a front view in half section of the base;
FIG. 7 is a side view of the base;
FIG. 8 is a schematic sectional view of the first connecting seat;
FIG. 9 is a side view of the first connecting seat;
fig. 10 is a cross-sectional structural schematic view of the ferrule;
FIG. 11 is a schematic structural view of a front seat of a valve core;
FIG. 12 is a schematic front view of the rear seat of the valve cartridge;
FIG. 13 is a side view of the rear seat of the valve cartridge;
FIG. 14 is a front view of the connecting tube;
FIG. 15 is a cross-sectional view of the connection tube of FIG. 14;
FIG. 16 is a front sectional view of the second connecting seat;
FIG. 17 is a schematic cross-sectional view of B-B of FIG. 16;
fig. 18 is a sectional view schematically illustrating the third connecting holder;
FIG. 19 is a cross-sectional structural view of the rear cover;
figure 20 is a schematic view of a half-section of the adapter;
FIG. 21 is a cross-sectional structural view of the first piston;
fig. 22 is a cross-sectional structural view of the second piston;
fig. 23 to 44 are schematic cross-sectional views illustrating a quick coupling according to an embodiment of the present invention, wherein the cross-sectional views show the state from the butt-joint to the butt-joint before the butt-joint of the male coupling assembly and the female coupling assembly to the separation of the male coupling assembly and the female coupling assembly, and the arrows show the gas flowing state.
FIG. 1 shows a male connector assembly; 11. a tubular housing; 111. a positioning groove; 112. a first through hole; 113. a first annular tapered surface; 114. an accommodating portion; 115. a threaded first connection; 116. a second through hole; 117. positioning the end portion; 12. a male valve core assembly; 121. a first conical surface section; 122. a first tube section; 123. a second conical surface section; 124. a first blocking portion; 125. a second tube section; 126. a third tube section; 13. a first gasket; 14. a first spring; 15. mounting a bracket; 151. a support leg; 1511. a flow-through hole; 1512. an auxiliary hole; 152. a via hole; 153. an accommodating portion; 2. a female connector assembly; 21. a sleeve; 2110. a through hole; 2111. a limiting hole; 2112. positioning and chamfering; 2113. positioning a step; 2114. a first annular groove; 2115. a first accommodating portion; 2116. a sleeving section; 22. a steel ball; 23. a base; 2311. installing an avoidance hole; 2312. an annular positioning groove; 2313. a first mounting flat position; 24. a third spring; 25. a first connecting seat; 251. butting an air inlet; 252. an annular groove; 253. a second mounting flat position; 254. a blocking portion; 26. a card sleeve; 261. mounting a step; 262. a compression end; 263. positioning the inclined plane; 264. a second annular groove; 27. a first seal ring; 28. a third seal ring; 29. a valve core front seat; 291. an annular groove; 292. sealing the conical surface; 293. a fifth through hole; 294. a threaded connection; 295. installing a notch; 210. a fourth seal ring; 211. a spring; 212. a fifth seal ring; 213. a second Y-shaped ring; 214. a sixth seal ring; 215. a ninth seal ring; 216. a second connecting seat; 2161. a first connection portion; 2162. a second connecting portion; 2163. an airway; 2164. a third through hole; 2165. a third annular groove; 2166. a third mounting flat position; 217. a first Y-shaped ring; 218. a first piston; 2181. mounting grooves; 2182. a first missing portion; 2183. a fourth via hole; 219. a tenth seal ring; 220. a rear cover; 2201. communicating the air inlet hole; 2202. a sixth through hole; 2203. a second missing part; 221. a third Y-shaped ring; 222. a retainer ring; 223. a third connecting seat; 2231. a third connecting portion; 2232. a step portion; 2233. air holes; 2234. a seventh via hole; 2235. a first annular groove; 2236. a first mounting notch; 2237. a second annular groove; 2238. a fourth missing portion; 2239. a third annular groove; 224. a connecting pipe; 2241. a fourth connecting portion; 2242. positioning the boss; 2243. a fourth annular groove; 2244. a second mounting notch; 2245. a first positioning step; 2246. a fifth annular groove; 2247. a third mounting notch; 2248. a fifth connecting part; 2249. a third missing portion; 2250. an eighth through hole; 2251. an avoidance part; 225. a twelfth seal ring; 226. an adapter; 2261. a sixth connecting portion; 2262. a seventh connecting portion; 2263. a sixth annular groove; 227. a second seal ring; 228. a master spool assembly; 229. a spool spring; 230. a valve core rear seat; 2301. an annular sinking platform; 2302. a ninth via hole; 2303. a fan-shaped missing part; 231. a second piston; 2310. a seventh annular groove; 2320. a tenth through hole; 2330. an installation part; 232. a first retainer ring; 233. an eighth seal ring; 234. a second retainer ring; 235. an eleventh seal ring; 236. a dust ring; 237. a second gasket; 238. a seventh seal ring; 3. a gas pipe joint.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like are used in an orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is also to be understood that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, e.g. as being either fixedly connected or detachably connected or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
In one aspect, as shown in fig. 1, the present invention provides a male joint component 1, the male joint component 1 includes a tubular housing 11, a male valve core assembly 12 is installed and fixed inside the tubular housing 11, the male valve core assembly 12 includes a first conical surface section 121, a first pipe section 122, a second conical surface section 123, a first blocking portion 124, a second pipe section 125 and a third pipe section 126, which are sequentially disposed. The first sealing gasket 13 is arranged on the front second tapered surface section 123 of the male valve core assembly 12 as a first sealing element, and the first blocking portion 124 is arranged on the right side of the front second tapered surface section 123 of the male valve core assembly 12 for limiting the relative movement between the first sealing gasket 13 and the male valve core assembly 12. The right side of the first blocking portion 124 is provided with a first spring 14 serving as a first elastic element, the rear side of the first spring 14 is provided with a mounting support 15, the mounting support 15 is provided with an accommodating portion 153 in the direction deviating from the supporting leg 151, and a limiting space surrounded by the accommodating portion 153 can block the radial movement of the first spring 14 towards the male valve core assembly 12, so that the connection reliability between the first elastic element and the mounting support 15 is improved, the first elastic element is guaranteed to be reliably abutted between the male valve core assembly 12 and the mounting support 15, and the sealing performance of the male joint component 1 after non-conduction or cut-off is guaranteed. The wall surface of the supporting leg 151 is provided with a flow hole 1511, in order to further increase the flow area, the periphery of the through hole 152 on the connecting plate is provided with a plurality of auxiliary holes 1512, the auxiliary holes 1512 increase the cross-sectional area for fluid flow, fluid can flow through not only the flow hole 1511 but also the auxiliary holes 1512, and the fluid can flow in or out from the male joint assembly 1 side after the male joint assembly 1 and the female joint assembly 2 are butted, so that the fluid can flow in or out more smoothly from the male joint assembly 1 side. The structure of the mounting bracket 15 is shown in fig. 2. The middle part of the outer peripheral surface of the tubular shell 11 is provided with an annular positioning groove 111 which is convenient to be clamped with steel balls 22 which are uniformly distributed in the female joint component 2 along the axial direction and are used as limiting balls when the tubular shell is butted with the female joint component 2, so that the male joint component 1 is connected with the female joint component 2. The front end face of the tubular shell 11 is provided with a first through hole 112 serving as a butt joint, the first through hole 112 is in small clearance fit with a first pipe section 122 of the male valve core assembly 12, the preferable setting of the clearance is 0.1-0.2 mm, a first annular conical surface 113 is arranged on the inner wall side of the front end of the tubular shell 11, under the action of restoring force of the first spring 14, the first sealing gasket 13 which serves as a first sealing element and is sleeved on the second conical surface section 123 is in interference fit with the first annular conical surface 113 to form a sealing surface, leakage on one side of the male connector assembly 1 after the quick connector is not conducted or cut off is prevented, and the self sealing performance of the male connector assembly 1 is improved. The first spring 14 passes through the second tube section 125 and is sleeved on the outer circumferential surface of the second tube section 125, and the inner diameter of the first spring 14 is 1-5 mm larger than the diameter of the second tube section 125, so that the first spring 14 is prevented from being twisted at a large angle when being extruded and cannot resist the first blocking part 124 from being extruded towards the right side. The third pipe section 126 with a diameter significantly smaller than that of the second pipe section 125 is disposed on the right side of the second pipe section 125, the third pipe section 126 passes through the through hole 152 of the mounting bracket 15, so that when the male valve core assembly 12 inside the male joint component 1 contacts and extrudes with the female valve core assembly 228 inside the female joint component 2, the male valve core assembly 12 of the male joint component 1 receives extrusion force from one side of the female joint component 2, the male valve core assembly 12 integrally moves in a direction away from the joint butt joint side, and thus the first sealing gasket 13 inside the male joint component 1 is separated from the first annular conical surface 113 inside the male valve core assembly 12 to form a gap, and enters a conduction state. The inner wall of the tubular housing 11 on the side away from the joint butt joint direction is provided with an accommodating part 114, and the accommodating part 114 has an annular inclination angle of 40-80 degrees and is used for installing and fixing a support leg 151 of the mounting bracket 15. The first threaded connecting portion 115 with internal threads is arranged inside the end face, far away from the butt joint, of one side of the tubular shell 11, so that the tubular shell can be conveniently connected with a connector of a product or other automatic equipment and a tool clamp. The inner side of the threaded first connection portion 115 is provided with a second through hole 116 serving as a connection port, and the second through hole 116 is communicated with the first through hole 112, so that fluid can conveniently flow into or out of one side of the male joint component 1 after the male joint component 1 and the female joint component 2 are connected in a butt joint mode. The outside of the tubular housing 11 near the annular positioning groove 111 is provided with a positioning end 117, and the positioning end 117 is used for limiting the distance of the male joint component 1 entering the inside of the female joint component 2.
On the other hand, the utility model provides a quick-operation joint, including male joint subassembly 1 and female joint subassembly 2. The structure of the female joint assembly 2 is shown in fig. 3, which includes an outer housing, a valve core front seat 29, a female valve core assembly 228, a second sealing member, a second elastic member, a valve core rear seat 230, a connecting pipe 224, a locking mechanism, a piston assembly and a pneumatic structure. The structure of the components of the female connector assembly are shown in fig. 4-22. Wherein, the outer shell comprises a base 23, a first connecting seat 25, a second connecting seat 216, a third connecting seat 223 and a rear cover 220 which are detachably and fixedly connected with each other; the locking mechanism comprises a sleeve 21, a third elastic element, a cutting sleeve 26 and a limiting ball. The pneumatic structure comprises a butt joint air inlet cavity and a conduction air inlet cavity, wherein the butt joint air inlet cavity is arranged on the outer peripheral surface of the outer shell and can be communicated with an external air source. Under the action of external force (such as external force applied to the male joint component 1 by a cylinder or a manipulator), and under the condition that the interior of the female joint component 2 is close to a butt joint air inlet cavity at the butt joint side with the male joint component 1 and continuously ventilates, the clamping sleeve 26 moves leftwards, the third spring 24 serving as a third elastic element is further compressed, the pressing force of the clamping sleeve 26 on the steel ball 22 is reduced, the steel ball 22 moves a certain distance along the radial direction in the direction away from the axis of the sleeve 21, so that the male joint component 1 enters the inner side of the sleeve 21 of the female joint component 2, when the left butt joint air inlet cavity stops ventilating (namely after air leakage is finished), the third spring 24 is restored to the original compression state before ventilating, the pressing force of the clamping sleeve 26 on the steel ball 22 is increased, the clamping sleeve 26 completely presses the steel ball 22 into a through hole 2110 serving as a mounting hole of the sleeve 21, and, the male joint component 1 and the female joint component 2 realize automatic butt joint and locking fixation. When the left butt joint air inlet cavity is ventilated again, the clamping sleeve 26 moves leftwards, the pressing force on the steel ball 22 is reduced, the steel ball 22 moves a certain distance along the radial direction towards the axis direction far away from the sleeve 21, the annular positioning groove 111 on the outer peripheral surface of the tubular shell 11 is not locked, and the male joint component 1 and the female joint component 2 are automatically separated under the action of external force. Here, it is preferable to adopt a butt joint mode in which the male connector assembly 1 is moved and the female connector assembly 2 is not moved, but a butt joint mode in which the male connector assembly 1 is not moved by moving the entire female connector assembly 2 to the male connector assembly 1 side may be selected.
The first connector housing 25 of the female connector assembly 2 is nested within the interior of the base 23. One end of the base 23, which is close to the butt joint end of the male joint component 1, is provided with a first installation flat portion 2313, the first installation flat portion 2313 is preferably arranged on two opposite sides, or can be arranged on other even number of sides, and when the base 23 is assembled, the first installation flat portion 2313 can be clamped by a wrench or other special installation tools, so that the installation process is time-saving and labor-saving. Base 23 is close to and is provided with the installation and dodge hole 2311 with male joint subassembly 1 butt joint one end, and the diameter of each section of hole 2311 is dodged in the installation is different, makes things convenient for male joint subassembly 1, sleeve 21, cutting ferrule 26, first connecting seat 25 to assemble or dodge with base 23, is provided with the internal thread on the installation dodge hole 2311 middle section partial inner wall, conveniently carries out nested connection with first connecting seat 25. The side wall of the base 23 close to the installation avoidance hole 2311 is provided with an annular positioning groove 2312 for positioning the third spring 24. At least one threaded butt joint air inlet hole 251 is formed in the outer peripheral surface, close to the middle part, of the first connecting seat 25, and the butt joint air inlet hole 251 is an inlet of a butt joint air inlet cavity; the butt joint air inlet 251 is conveniently connected with an air pipe connector and an external air source, and air is supplied to the interior of the female connector assembly 2. An annular groove 252 for placing the first sealing ring 27 is arranged between the first connecting seat 25 and the cutting sleeve 26, the first sealing ring 27 is used for sealing and connecting an assembly gap between the first connecting seat 25 and the cutting sleeve 26, and gas in a butt joint air inlet cavity formed by the assembly gap of the sleeve 21, the first connecting seat 25 and the cutting sleeve 26 is prevented from permeating into an inner fluid channel from the inside. The outer side wall of the first connecting seat 25 is provided with a second installation flat position 253, the second installation flat position 253 is preferably arranged into two opposite parallel sides which are oppositely arranged, and the two opposite sides are parallel to the axis of the butt air inlet 251, so that the second installation flat position 253 can be clamped and tightened when the base 23 is connected with the first connecting seat 25 in a nested manner. The cutting ferrule 26 is arranged in an annular accommodating part formed by assembling gaps of the sleeve 21, the base 23 and the first connecting seat 25, the cutting ferrule 26 is of an annular structure, when the butt joint air inlet cavity continuously supplies air, air flow pushes the cutting ferrule 26 to move to the left side to the maximum limit position, after the butt joint air inlet cavity leaks air, under the action of the spring restoring force of the third spring 24, the cutting ferrule 26 moves to the right side to the original state position.
The outer side surface of the cutting sleeve 26 is provided with an installation step 261, the inner side wall of the cutting sleeve 26 is provided with a positioning inclined surface 263, and the positioning inclined surface 263 is abutted to a positioning chamfer 2112 of the sleeve 21. The third spring 24 abuts the annular locating groove 2312 on the left and the mounting step 261 of the ferrule 26 on the right. The inner side surface of the cutting sleeve 26 is provided with a second annular groove 264 for placing the first sealing ring 27, the first sealing ring 27 is used for sealing and connecting the assembly gap between the cutting sleeve 26 and the sleeve 21, and gas abutting against the gas inlet cavity is prevented from permeating into the inner fluid channel from the inner side through the assembly gap between the cutting sleeve 26 and the sleeve 21. The sleeve 21 is assembled on the inner side of the clamping sleeve 26, through holes 2110 for placing the steel balls 22 are formed in the outer side wall of the sleeve 21 close to the quick connector butt joint side, the through holes 2110 are uniformly distributed and arranged along the axis of the clamping sleeve 26, the diameter of the through holes 2110 is larger than that of the steel balls 22, the height of the through holes 2110 is smaller than that of the steel balls 22, the steel balls 22 can conveniently enter the through holes 2110, and meanwhile, a part of the upper half portion of the steel balls 22 is exposed outside the through holes 2110. The number of the through holes 2110 is set to be M, and the preferable value of M is 2-10. The through hole 2110 is directed to the ferrule 26 on one side and to the inside of the sleeve 21 on the other side. One side of the through hole 2110 close to the inner wall of the sleeve 21 is provided with a limiting hole 2111, the axis of the limiting hole 2111 is overlapped with the axis of the through hole 2110, the diameter of the limiting hole 2111 is smaller than that of the steel ball 22, and when the steel ball 22 is completely covered and pressed by the pressing end 262 of the ferrule 26, the steel ball 22 can be prevented from falling off from the limiting hole 2111. The side of the sleeve 21 far away from the through hole 2110 is provided with a positioning step 2113, the inner side surface of the positioning step 2113 near the side of the through hole 2110 abuts against the side wall of the blocking portion 254 of the first connecting seat 25, a right angle formed by the positioning step 2113 of the sleeve 21 and the sleeve joint section 2116 abuts against a right angle of the blocking portion 254 of the first connecting seat 25 near the annular groove 252, and the outer peripheral surface of the upper end surface of the positioning step 2113 is provided with a first annular groove 2114 for placing a fourth sealing ring 210 to prevent gas in the butt joint air inlet cavity from leaking through a gap between the sleeve 21 and the first connecting seat 25. The outer side surface of the positioning step 2113 of the sleeve 21 is provided with a first accommodating part 2115 with an angle larger than 120 degrees, so that the spring 211 is limited. The second connecting portion 2162 on the left side of the second connecting seat 216 is provided with an external thread, and is embedded in the first connecting seat 25 through threaded connection, and the second connecting portion 2162 on the right side of the second connecting seat 216 is provided with an external thread, and is embedded in the third connecting seat 223 through threaded connection. The second piston 231 is disposed inside the second connection seat 216, and a seventh annular groove 2310 is disposed on an outer side wall of the second piston 231, and is used for placing the second Y-shaped ring 213, so as to prevent gas in a second air inlet cavity formed by a gap between the second connection seat 216, the second piston 231 and the connection pipe 224 from permeating into a gap between the second connection seat 216 and the second piston 231, and to seal the gap therebetween. An air channel 2163 is arranged on the middle part of the outer peripheral surface of the second connecting seat 216 and the inner wall of the first connecting part 2161, so that air can be conveniently fed and discharged from the first air inlet cavity and the second air inlet cavity. A third through hole 2164 is formed in the inner side of the middle of the second connection seat 216, the diameter of the third through hole 2164 is slightly larger than the outer diameter of the connection pipe 224 corresponding to the assembling position, so that the connection pipe 224 can pass through the hole in the second connection seat 216, a third annular groove 2165 is formed in the inner wall of the third through hole 2164 and used for placing the seventh sealing ring 238, and the seventh sealing ring 238 is used for sealing the assembling gap between the second connection seat 216 and the connection pipe 224 and preventing the gas in the second air inlet cavity from entering the first piston chamber on the right side through the gap. A first piston 218 is arranged inside the second connecting seat 216 close to the right side, and a communicating air inlet hole 2201 formed in the rightmost rear cover 220 is an inlet of a communicating air inlet cavity; in the initial state when the conduction air inlet hole 2201 is not ventilated, the right end surface of the second connecting seat 216 is flush with the right end surface of the first piston 218. The outer side wall of the first piston 218 is provided with a mounting groove 2181 for placing the first Y-shaped ring 217, and preventing gas in a first gas inlet cavity formed by the gaps of the second connecting seat 216, the first piston 218 and the third connecting seat 223 from permeating into the gap between the second connecting seat 216 and the first piston 218. A first missing part 2182 is formed on one side of the first piston 218, which is close to the third connecting seat 223, and a gap with a proper width is formed between the first piston and the third connecting seat 223, which facilitates the formation of the first air inlet cavity. The first piston 218 is provided with a fourth through hole 2183 inside, and the diameter of the fourth through hole 2183 is slightly larger than the diameter of the connecting pipe 224 inside the corresponding assembling position, so that the connecting pipe 224 inside can conveniently pass through the fourth through hole 2183. The third connecting section 223 is provided with a third connecting section 2231 on the side close to the first connecting section 25, and the inner side of the third connecting section 2231 is preferably provided with an internal thread, and is connected with the second connecting section 2162 on the second connecting section 216 through a thread. A stepped portion 2232 is formed at a position of the third connection seat 223 corresponding to the second missing portion 2203 of the rear cover 220, a sealing groove formed by a gap between the stepped portion 2232 and the second missing portion 2203 is used for placing a tenth sealing ring 219, and the tenth sealing ring 219 can be used for sealing an assembly gap between the third connection seat 223 and the rear cover 220, so as to prevent gas in a conducting air inlet cavity formed between the third connection seat 223 and the rear cover 220 from overflowing to a gap between the third connection seat 223 and the rear cover 220. An air hole 2233 is formed on one side of the stepped portion 2232 of the third connecting seat 223, which is close to the axial center of the third connecting seat, and is used for introducing the air communicated with the air inlet cavity at the right side into a first air inlet cavity formed by a gap between the first piston 218 and the third connecting seat 223. Further, a first air inlet chamber formed by the gaps of second connecting seat 216, first piston 218, and third connecting seat 223 is introduced through air passage 2163 of second connecting seat 216. A first annular groove 2235 is formed in the outer circumferential surface of the third connecting seat 223 on the side close to the right end surface of the rear cover 220, the first annular groove 2235 is used for placing an eleventh sealing ring 235 to prevent the gas in the right side conduction air inlet chamber from overflowing from the gap between the rear cover 220 and the third connecting seat 223, a first mounting notch 2236 is formed in the outer circumferential surface of the third connecting seat 223 on the side close to the rear side of the first annular groove 2235 and used for assembling a retaining ring 222 to limit the movement of the rear cover 220, and the retaining ring 222 is preferably made of 304 stainless steel. The inside of the third coupling seat 223 is provided with a seventh through hole 2234, and the diameter of the seventh through hole 2234 is slightly larger than the outer diameter of the connection pipe 224 inside the corresponding fitting position thereof, so that the connection pipe 224 can be conveniently fitted through the seventh through hole 2234 of the third coupling seat 223. The third connecting seat 223 is provided with a fourth missing portion 2238 near the inner side of the first piston 218 to avoid interference with the second retaining ring 234, so as to facilitate installation and fixation of the third connecting seat, the second retaining ring 234 is preferably made of 304 stainless steel, and the second retaining ring 234 is used for limiting relative movement between the first piston 218 and the connecting pipe 224, so as to limit the first piston 218. A second annular groove 2237 is formed on an inner wall of the seventh through hole 2234 of the third connection holder 223 on a side close to the fourth missing portion 2238, the second annular groove 2237 is used for accommodating the third Y-shaped ring 221, and the third Y-shaped ring 221 is used for sealing an assembly gap between the third connection holder 223 and the connection pipe 224, so as to prevent the gas in the first air inlet cavity from overflowing to the outside through the gap between the third connection holder 223 and the connection pipe 224. A third annular groove 2239 is formed near the inner portion of the right end surface of the third connecting block 223, and the third annular groove 2239 is used for placing a dust ring 236 to prevent dust on the outside from entering the gap between the third connecting block 223 and the connecting pipe 224. The upper portion of back lid 220 is provided with the conduction inlet hole 2201 of internal thread, makes things convenient for first air inlet cavity and second cavity to admit air and the exhaust. The valve core front seat 29 is nested at the inner side of the sleeve 21, the outer diameter of the valve core front seat 29 is slightly smaller than the inner diameter of the sleeve section 2116 of the sleeve 21, the assembly gap between the valve core front seat and the sleeve section is preferably set to be 0.1-0.5 mm, the distance between the left end face of the valve core front seat 29 and the inner end face of the sleeve section 2116 of the sleeve 21 close to the through hole 2110 side is recorded as H, and the distance is larger than the limit distance that the whole body formed by the female valve core assembly 228, the valve core front seat 29, the connecting pipe 224 and the like moves leftwards together when the male connector component. An annular groove 291 is formed in the valve core front seat 29 close to the left end face, the annular groove 291 is used for placing a third sealing ring 28, after the front end of the tubular shell 11 of the male joint assembly 1 enters the valve core front seat 29 of the female joint assembly 2, the third sealing ring 28 is in interference fit with the outer peripheral face of the front end of the tubular shell 11 to seal the tubular shell 11 radially, when the quick joint is prevented from being conducted, fluid in an internal fluid channel overflows from an assembly gap between the tubular shell 11 and the valve core front seat 29, and a fifth through hole 293 is formed in the valve core front seat 29, so that a first conical surface at the front end of the female valve core assembly 228 in the valve core front seat 29 penetrates through the fifth through hole 293 of the valve core front seat 29 and is exposed for a certain distance. An annular sealing conical surface 292 is arranged on the right side of the fifth through hole 293 of the spool front seat 29, the angle of the sealing conical surface is preferably set to 45-75 degrees, the sealing conical surface 292 and a second sealing gasket 237 which is assembled on the front end second conical surface of the female spool assembly 228 and serves as a second sealing element are in interference fit to form a sealing surface, and after the male joint assembly 1 and the female joint assembly 2 are cut off, fluid in the female joint assembly 2 is prevented from leaking from a fit clearance between the front end second conical surface of the female spool assembly 228 and the sealing conical surface 292 of the spool front seat 29. The spool front seat 29 is provided with threaded connection portion 294 with the internal thread near the inside of one side of the first piston 218, conveniently connect with the fourth connecting portion 2241 provided with the external thread on the connecting pipe 224, the inside installation breach 295 that is provided with of the end on the rightmost side of the spool front seat 29, conveniently dodge the location boss 2242 on the connecting pipe 224, and make the annular groove between installation breach 295 and location boss 2242 and the fourth connecting portion 2241 constitute the seal groove, this seal groove is used for placing the fifth sealing washer 212, prevent that the inside fluid of female joint assembly 2 from leaking to the outside from the assembly gap of spool front seat 29 and connecting pipe 224. The positioning boss 2242 is set to a certain height, and the right side surface is kept in contact with the second piston 231, and has a certain contact area, so that when gas is introduced into the first air inlet cavity and the second air inlet cavity, the second piston 231 is under the pushing action of the gas flow, and by applying the action of the positioning boss 2242 force, and simultaneously in cooperation with the pushing action of the first piston 218, the whole body formed by the female valve element assembly 228, the valve element front seat 29, the connecting pipe 224 and the like is pushed to move leftward together. The connection pipe 224 is provided with a fourth annular groove 2243 at the rear side of the positioning boss 2242 for seating the sixth sealing ring 214, and the sixth sealing ring 214 is used to prevent the gas of the second inlet chamber from leaking to the inner side from the fitting gap of the second piston 231 and the connection pipe 224. The right side of fourth annular groove 2243 is provided with second installation breach 2244, and second installation breach 2244 is used for placing first retaining ring 232, and the degree of depth of second installation breach 2244 is less than the line footpath of first retaining ring 232, guarantees that first retaining ring 232 exposes partly for second installation breach 2244 after the assembly, is used for spacing second piston 231. The first retainer 232 is preferably made of 304 stainless steel, and the first retainer 232 regulates the relative positions of the second piston 231 with respect to the valve body front seat 29 and the connection pipe 224 so that the side surface of the mounting portion 2330 of the second piston 231 always abuts against the right side surface of the positioning boss 2242 of the connection pipe 224 to prevent relative movement. The inside of the connection pipe 224 is provided with an eighth through hole 2250, and the eighth through hole 2250 penetrates the entire left and right side surfaces of the connection pipe 224 for the fluid inside the quick connector to flow in or out from the female connector assembly 2 side. The position that connecting pipe 224 and the left side terminal surface of first piston 218 contacted is provided with first positioning step 2245, first positioning step 2245 keeps certain height, guarantee the area of contact big enough when with first piston 218 butt, make first air inlet cavity, when letting in gas in the second air inlet cavity, first piston 218 is under the pushing action of air current, through applying for the effect of first positioning step 2245 thrust, under the pushing action of cooperation second piston 231 simultaneously, promote female valve element assembly 228, case front bezel 29, the whole of connecting pipe 224 etc. and move left together. The connecting pipe 224 is provided with a fifth annular groove 2246 at a position, which is on the right side of the first positioning step 2245, in contact with the first piston 218, the fifth annular groove 2246 is used for placing the eighth sealing ring 233, and the assembly gap between the connecting pipe 224 and the first piston 218 can be sealed, so that gas is prevented from entering the annular cavity, which is formed by the assembly gap among the first piston 218, the connecting pipe 224 and the second connecting seat 216, at the left side of the first piston 218 through the first gas inlet cavity via the gap. The connecting pipe 224 is provided with a third fitting notch 2247 at the rear side of the fifth annular groove 2246, the third fitting notch 2247 is provided at the position of the right end face of the first piston 218, and the third fitting notch 2247 is used to fit the second retainer 234. The depth of the third installation notch 2247 is smaller than the line diameter of the second retainer ring 234, so that a part of the second retainer ring 234 is exposed relative to the third installation notch 2247 after being assembled, the first piston 218 is positioned, the left end face of the first piston 218 is always abutted to the positioning boss 2245 of the connecting pipe 224, the first piston 218 is limited to move towards the right side, and the second retainer ring 234 is preferably made of stainless steel. A fifth connection part 2248 with internal threads is arranged inside the right side of the connection pipe 224 and connected with a sixth connection part 2261 with external threads on the adapter 226, so that the sixth connection part 2261 at the front end of the adapter 226 is fixed on the inner side of the right side end of the connection pipe 224. The connecting pipe 224 is provided with a bypass 2251 on the inner side of the fourth connecting portion 2241, and an annular cavity formed around the inside of the bypass 2251 is used for assembling the spool rear seat 230. A third missing part 2249 is arranged on the connecting pipe 224 and at the right side of the fifth connecting part 2248, a sixth annular groove 2263 is arranged on the adapter 226 and corresponds to the third missing part 2249, the sixth annular groove 2263 is used for placing a twelfth sealing ring 225, and the twelfth sealing ring 225 is used for sealing the assembly gap between the fifth connecting part 2248 of the connecting pipe 224 and the sixth connecting part 2261 of the adapter 226 and preventing the fluid in the fluid passage inside the female joint component 2 from overflowing from the gap between the fifth connecting part 2248 and the sixth connecting part 2261. The seventh connecting portion 2262 with internal threads is arranged on the rear side of the adapter 226, so that the connection of a connector for connecting a product or other automation equipment and a tool clamp is facilitated. An annular sinking platform 2301 with the whole circumference equally divided into three equal parts and part missing of the solid is arranged on the valve core rear seat 230, the annular sinking platform 2301 is used for limiting the valve core spring 229 serving as a second elastic part, one side of the valve core spring 229 is abutted against the rear side surface of a blocking part used for positioning the second sealing gasket 237 in the female valve core assembly 228, and the other side of the valve core spring 229 is abutted against the bottom surface of the annular sinking platform 2301 of the valve core rear seat 230. Three fan-shaped missing portions 2303 with an included angle of 120 degrees are arranged on the valve core rear seat 230, the radius of the fan-shaped missing portions 2303 is larger than that of the annular sinking table 2301, the ring-shaped sinking table 2301 is decomposed into three separated arc segment entities by the fan-shaped missing portions 2303, and the fan-shaped missing portions 2303 penetrate through the left side surface and the right side surface of the whole valve core rear seat 230, namely, the whole valve core rear seat 230 is in a hollow state. The rear side of the annular sinking platform 2301 is provided with a ninth through hole 2302, the axis of the ninth through hole 2302 coincides with the axis of the annular sinking platform 2301, so that the positioning rod at the rear side of the female valve core assembly 228 can conveniently pass through the ninth through hole 2302 to limit the movement of the positioning rod only in the axis direction of the ninth through hole 2302. The three scallops 2303 facilitate fluid communication, and fluid can flow from the side of the eighth through hole 2250 on the inside of the connection pipe 224 through the scallops 2303 of the cartridge rear seat 230 and then out to the left, allowing fluid to flow from the female connector assembly 2 through the male connector assembly 1 when the male connector assembly 1 and the female connector assembly 2 of the quick connector are in communication. Of course, the direction of the fluid flow can be selected from the side of the male joint assembly 1 to the side of the female joint assembly 2, where the fluid can flow out to the right through the scalloped portion 2303 of the spool back 230. The second piston 231 is internally provided with a tenth through hole 2320, and the diameter of the tenth through hole 2320 is slightly larger than that of the connection pipe 224 assembled therein, so that the connection pipe 224 inside can pass through the through hole thereof. A right-angled annular mounting portion 2330 is disposed on an inner wall of the second piston 231 on a side close to the tenth through hole 2320, and the annular mounting portion 2330 limits the spring 211. One end of the spring 211 abuts against a vertical plane of the first receiving portion 2115 of the sleeve 21, and the other end abuts against a vertical plane of the mounting portion 2330 of the second piston 231, and in a normal mounting state, the spring 211 is compressed by the second piston 231. When the left air inlet cavity is in an unvented state, the third spring 24 is in a compressed state, the pressing end 262 of the clamping sleeve 26 is positioned above the through holes 2110 uniformly distributed along the axis of the sleeve 21 and completely covers the through holes 2110, the steel ball 22 in each through hole 2110 is partially pressed into the limiting hole 2111 of the sleeve 21, and the distance from the ball center of the steel ball 22 to the axis of the sleeve 21 is the minimum.
As shown in fig. 23-44, the whole working process of the quick coupling is as follows:
fig. 23-29 illustrate the automated mating of the male connector assembly 1 with the female connector assembly 2. As shown in fig. 23, the male joint component 1 automatically moves to the right side under the action of external force (such as external force applied to it by a cylinder or a manipulator, not shown); as shown in fig. 24, the connected air pipe joint is advanced to vent (i.e. air is introduced into the left air inlet chamber) above the abutting air inlet hole 251 of the first connecting seat 25 of the female joint assembly 2, the ferrule 26 moves to the left under the pushing action of the air flow, so that the third spring 24 is compressed, the pressing force of the ferrule 26 on the steel balls 22 uniformly distributed in the axial direction of the sleeve 21 in the through hole 2110 of the sleeve 21 becomes small, the steel balls 22 have a tendency to move away from the axial center of the sleeve 21, and when the ferrule 26 continues to move to the left until the pressing end 262 thereof exceeds the axial center of the through hole 2110, the steel balls 22 start to move upwards. As shown in fig. 25, when the ferrule 26 is moved to the extreme position by the pushing action of the air flow, the distance from the center of the ball 22 to the axis of the sleeve 21 is the maximum, so that the male connector assembly 1 can enter the sleeve 21 of the female connector assembly 2 conveniently. The male connector assembly 1 automatically enters the interior of the sleeve 21 of the female connector assembly 2 under the action of external force. As shown in fig. 26, the ferrule 26 is still at the left extreme position and the steel ball 22 is still at the maximum distance from the axial center of the sleeve 21 for a while before the male connector assembly 1 is completely inserted into the female connector assembly 2.
As shown in fig. 27, when the left air inlet chamber begins to deflate, the left thrust on the ferrule 26 is reduced, the ferrule 26 moves rightwards, the compression amount of the third spring 24 is reduced, and the steel ball 22 moves along the axis of the sleeve 21, namely the annular positioning groove 111 of the male connector assembly 1 is locked; as shown in fig. 28, after the gas in the left air inlet chamber is exhausted, the ferrule 26 continues to move rightward to the limit position, the compression amount of the third spring 24 reaches the minimum value, that is, the position of the ferrule 26 and the compression amount of the third spring 24 are restored to the state before ventilation, the distance from the spherical center of the steel ball 22 to the axial center of the sleeve 21 is the minimum value, the steel balls 22 uniformly distributed along the axial center of the sleeve 21 lock the annular positioning groove 111 of the male joint assembly 1, at this time, when the positioning end portion 117 of the male joint assembly 1 abuts against the left end portion of the sleeve 21, the male joint assembly 1 completely enters the female joint assembly 2, the external force applied to the male joint assembly 1 is unloaded, and the male joint assembly 1 and the female joint assembly 2 complete automatic butt joint as shown in fig.. The whole automatic butt joint process does not need manual intervention, and the use requirement of an automatic line body is met.
Fig. 38 to 44 show the automatic separation process of the male joint component 1 and the female joint component 2, that is, the reverse process of the automatic butt joint of the male joint component 1 and the female joint component 2, only gas is needed to be introduced into the left gas inlet cavity, then the cutting sleeve 26 moves to the extreme limit position to the left under the pushing action of the gas flow, the distance from the spherical center of the steel ball 22 to the axis of the sleeve 21 is the maximum value, so that the male joint component 1 can be conveniently withdrawn from the female joint, after the male joint component 1 is withdrawn, the gas inlet cavity of the female joint component 2 starts to release gas, the cutting sleeve 26 moves to the right side, after the gas release is completed, the cutting sleeve 26 moves to the state before the gas release, the distance from the spherical center of the steel ball 22 to the axis of the sleeve 21 is the maximum value, and the detailed description is.
As shown in fig. 30 to 37, after the quick connector is connected, the air pipe joint connected in advance to the through air inlet hole 2201 of the back cover 220 of the female connector component 2 is vented (i.e. air is introduced into the right air inlet cavity), the air enters the first air inlet cavity through the air hole 2233 of the third connecting seat 223 and enters the second air inlet cavity through the air passage 2163 of the second connecting seat 216, under the pushing action of the air, the first piston 218 and the second piston 231 move leftward, the distance between the two side walls of the first air inlet cavity and the second air inlet cavity increases, the spring 211 is compressed, the first piston 218 and the second piston 231 push the whole composed of the valve core front seat 29, the female valve core assembly 228, the connecting pipe 224, and the adapter 226 to move leftward together, the right side of the through air inlet cavity continues to vent, the first piston 218 and the second piston 231 continue to push the valve core front seat 29, the female valve core assembly 228, the connecting pipe 224, and the connecting pipe 224, The whole body formed by the adapter 226 and the like moves leftwards together, and the distance between the two side walls of the first air inlet cavity and the second air inlet cavity is further increased, as shown in fig. 32-34; at this time, the tubular housing 11 of the male joint assembly 1 is in interference fit with the third seal ring 28 assembled inside the front valve core seat 29, so as to radially seal the tubular housing 11 and prevent the leakage from the outer peripheral surface of the tubular housing 11 to the outside after the conduction of the male and female joints. The distance between the male valve core assembly 12 of the male connector assembly 1 and the front end face of the female valve core assembly 228 of the female connector assembly 2 is reduced. When the front end surface of the male valve core assembly 12 of the male joint assembly 1 and the front end surface of the female valve core assembly 228 of the female joint assembly 2 start to contact, the female valve core assembly 228 of the female joint assembly 2 starts to receive a reverse tightening force from one side of the male joint assembly 1, at this time, the female valve core assembly 228 and the whole body formed by the valve core front seat 29, the connecting pipe 224, the adapter 226 and the like continue to move leftward together, but the female valve core assembly 228 and the whole body formed by the valve core front seat 29, the connecting pipe 224, the adapter 226 and the like move relatively, the third spring 24 on the rear side of the valve core front seat 29 starts to compress, and the annular sealing conical surface 292 inside the valve core front seat 29 and the second sealing gasket 237 assembled on the second conical surface on the front end of the female valve core assembly 228 are in interference fit to form a sealing surface clearance. Meanwhile, the male valve core assembly 12 inside the male connector assembly 1 starts to move leftwards due to the acting force of the female valve core assembly 228 of the female connector assembly 2 to the left, the tubular shell 11 of the male connector assembly 1 is locked and kept immovable by the steel ball 22, the two components also move relatively, and the first annular conical surface 113 on the inner side of the tubular shell 11 of the male connector assembly 1 and the first sealing gasket 13 sleeved on the second conical surface section 123 of the male valve core assembly 12 are in interference fit to form a sealing surface, namely, a gap is formed. When the first piston 218 and the second piston 231 continue to push the whole of the front valve element seat 29, the female valve element assembly 228, the connecting pipe 224, the adapter 226 and the like in the female joint component 2 to move leftward to the leftmost side, the relative displacement amount of the whole of the female valve element assembly 228, the front valve element seat 29, the connecting pipe 224, the adapter 226 and the like reaches the maximum value, and at this time, the relative displacement amount of the male valve element assembly 12 in the male joint component 1 and the outer tubular housing 11 thereof also reaches the maximum value. The sealing conical surface 292 of the spool front seat 29 of the female joint component 2 is no longer in contact with the second gasket 237 fitted on the second conical surface of the front end of the female spool assembly 228, the gap between the sealing conical surface 292 of the spool front seat 29 and the second conical surface of the front end of the female spool assembly 228 reaches a maximum value, the first annular conical surface 113 of the tubular shell 11 of the male joint component 1 is no longer in contact with the first gasket 13 fitted on the second conical surface section 123 of the front end of the male spool assembly 12, the gap between the first annular conical surface 113 of the tubular shell 11 and the second conical surface of the front end of the male spool assembly 12 reaches a maximum value, at this time, the flow path is conducted, and fluid can flow to the male joint component 1 side through the female joint component 2 side, and of course, fluid can selectively flow to the female joint component 2 side from. Because the female joint component 2 is internally provided with two pistons and two variable gas cavities, the leftward thrust of the whole piston is increased, the leftward movement distance of the whole body formed by the female valve element assembly 228, the valve element front seat 29, the connecting pipe 224, the adapter 226 and the like is also increased, and meanwhile, the relative displacement of the whole body formed by the female valve element assembly 228, the valve element front seat 29, the connecting pipe 224, the adapter 226 and the like is also increased, so that the gap between the valve element assembly inside the male joint and the valve element front seat inside the outer part is increased, which is equivalent to the increase of the gas flow passing through the quick joint, thereby reducing the waiting time of the processes of inflation, vacuum pumping, filling and the like, and improving the production efficiency. After the quick coupling completes the corresponding operation, as shown in fig. 35, the right air inlet chamber exhausts, at this time, the air thrust exerted on the first piston 218 and the second piston 231 decreases, as shown in fig. 36, and the first piston 218 and the second piston 231 start to move to the right under the restoring force of the spring 211.
The clearance between the sealing tapered surface 292 of the spool front seat 29 of the female joint component 2 and the front second tapered surface of the female spool assembly 228 starts to decrease, and at the same time, the clearance between the first annular tapered surface 113 of the tubular housing 11 and the front second tapered surface of the male spool assembly 12 starts to decrease, and the flow rate of the fluid flowing through the quick coupling starts to decrease. When the front end surface of the male valve core assembly 12 of the male connector assembly 1 starts to separate from the front end surface of the female valve core assembly 228 of the female connector assembly 2, the male valve core assembly 12 of the male connector assembly 1 does not move rightward any more, at this time, the first annular tapered surface 113 on the inner side of the tubular shell 11 of the male connector assembly 1 and the first sealing gasket 13 sleeved on the second tapered surface section 123 of the male valve core assembly 12 are in interference fit to form a sealing surface, and a flow path on one side of the male connector assembly 1 is cut off as shown in fig. 37; the first spring 14 assembled on the second section 125 of the male valve core assembly 12 keeps a continuous compression state, so that the first sealing gasket 13 is always tightly attached to the first annular conical surface 113 on the inner side of the tubular shell 11, the male connector assembly 1 has extremely high air tightness, and the leakage rate is reduced to 1 x 10-6In the order of mbar. At this time, the sealing conical surface 292 of the spool front seat 29 of the female joint component 2 and the second gasket 237 fitted on the second conical surface of the front end of the female joint component 228 are also in interference fit to form a sealing surface, the flow path on one side of the female joint component 2 is cut off, the spool spring 229 fitted on the rear side of the spool assembly 228 is kept in a continuously compressed state, it is ensured that the second gasket 237 is always tightly attached to the sealing conical surface 292 of the spool front seat 29, the air tightness on one side of the female joint component 2 is extremely high, and the leak rate is reduced to 1 × 10-6The magnitude of mbar.L/s, guaranteed that inside fluid passage switches on and cuts holistic gas tightness in back, satisfy fluorine system leak hunting requirement of high accuracy, avoid the erroneous judgement of leak hunting, promote leak hunting efficiency by a wide margin. Meanwhile, the assembly clearance of each part on the outer side of the fluid conduction of the female joint adopts a multi-sealing structure, such as sealing ring sealing, O-shaped ring sealing and Y-shaped ring sealing, so that the overall sealing performance of the outer side of the fluid channel of the quick joint is greatly improved, and the butt joint air inlet cavity and the conduction air inlet cavity in a ventilation state are prevented from being connectedAnd the gas of the first air inlet cavity and the second air inlet cavity leaks to the inner side and the outer side, so that the air loss is reduced.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. A male joint component, comprising a tubular housing (11) and a male valve core assembly (12), a first sealing member, a first elastic member and a mounting bracket (15) arranged therein, wherein the tubular housing (11) comprises a butt joint port and a joint port, and the male joint component (1) has a conducting state that the butt joint port is opened and a cut-off state that the butt joint port is closed; the first sealing element is sleeved on the male valve core assembly (12); the first elastic piece is elastically compressed and arranged between the male valve core assembly (12) and the mounting bracket (15), so that the mounting bracket (15) abuts against the inner middle section of the tubular shell (11) and the first sealing piece abuts against the butt joint of the tubular shell (11) to form the cut-off state; the male valve core assembly (12) can axially slide in the tubular shell (11) under the action of external force to open the pair of interfaces so as to form the conduction state;
the mounting bracket (15) comprises a connecting plate, the middle of the connecting plate is provided with a through hole (152), the edge of the connecting plate axially extends in an inclined mode to form a supporting leg (151), the wall surface of the supporting leg (151) is provided with a circulation hole (1511), and the supporting leg (151) abuts against the tubular shell (11); the edge of the connecting plate and the supporting leg (151) extend axially away from the ground to form an accommodating part (153), and the first end of the first elastic piece abuts against the connecting plate and is accommodated in the accommodating part.
2. The male connector assembly of claim 1, wherein the mating interface has a first annular tapered surface (113), and the first seal is seated on the male valve core assembly (12) proximate the first annular tapered surface (113); in the shut-off state, the first seal rests against the first annular taper (113).
3. The male joint assembly according to claim 1, wherein the male valve core assembly (12) comprises a first conical surface section (121), a first pipe section (122), a second conical surface section (123), a first blocking portion (124), a second pipe section (125) and a third pipe section (126) which are sequentially arranged, the first sealing member is sleeved on the second conical surface section (123), the first elastic member is arranged on the second pipe section (125), a second end of the first elastic member abuts against the first blocking portion (124), and the third pipe section (126) penetrates through the through hole (152) and can axially slide in the through hole (152).
4. The male connector assembly of claim 1, wherein a plurality of auxiliary holes (1512) are formed in the connecting plate, and a plurality of the auxiliary holes (1512) are located at the periphery of the through hole (152).
5. The male connector assembly according to claim 1, wherein the outer circumferential side of the tubular housing (11) is provided with a positioning groove (111).
6. A quick-coupling comprising a female coupling assembly (2) and a male coupling assembly (1) according to any one of claims 1 to 5.
7. The quick connector according to claim 6, wherein the female connector assembly (2) comprises an outer housing, a valve core front seat (29), a female valve core assembly (228), a second sealing element, a second elastic element, a valve core rear seat (230), a connecting pipe (224), a locking mechanism, a piston assembly and a pneumatic structure, the structure of the female valve core assembly (228) is the same as that of the male valve core assembly (12), and the female connector assembly (2) is locked and fixed with the male connector assembly (1) through the locking mechanism; the valve core front seat (29) is tubular, the inner wall of the valve core front seat is provided with a second annular conical surface, the second sealing element is sleeved at the position, close to the second annular conical surface, of the female valve core assembly (228), the valve core rear seat (230) is arranged at one end, far away from the second sealing element, of the female valve core assembly (228), and the second elastic element is elastically compressed and arranged between the female valve core assembly (228) and the valve core rear seat (230); an avoiding part (2251) is arranged at one end, close to the female valve core assembly (228), of the connecting pipe (224), a threaded connecting part (294) is arranged at one side, away from the second annular conical surface, of the valve core front seat (29), and the valve core front seat (29) is fixedly connected with the connecting pipe (224) through the threaded connecting part (294) and limits and fixes the valve core rear seat (230) in the avoiding part (2251); the second seal closing the box assembly (2) against the second annular tapered surface, the box spool assembly (228) being axially movable under an external force to disengage the second seal from the annular tapered surface to open the box assembly (2);
a piston chamber is formed in the outer shell, the piston chamber is communicated with the pneumatic structure, and the piston assembly is in transmission connection with the connecting pipe (224); the piston assembly can move in the piston chamber under the action of pneumatic power introduced by the pneumatic structure to drive the connecting pipe (224), and further drive the female valve core assembly (228) and the valve core front seat (29) to move towards the direction of the male connector assembly (1).
8. The quick coupling of claim 7, wherein the pneumatic structure comprises a butt joint air inlet cavity and a communication air inlet cavity, the butt joint air inlet cavity is arranged on the outer peripheral surface of the outer shell and can be communicated with an external air source, the butt joint air inlet cavity is in transmission connection with the locking mechanism through a pipeline, and the communication air inlet cavity is communicated with the piston cavity through a pipeline.
9. The quick connector of claim 8 wherein the piston assembly includes a first piston (218) and a second piston (231), the piston chamber including a first piston chamber and a second piston chamber, the first piston (218) being slidably disposed in the first piston chamber, the second piston (231) being slidably disposed in the second piston chamber; a first air inlet cavity is formed on one side, close to the conducting air inlet cavity, of the first piston (218), and a second air inlet cavity is formed on one side, close to the first piston (218), of the second piston (231); the conduction air inlet cavity is communicated with the first air inlet cavity through a pipeline, and the first piston chamber is communicated with the first air inlet cavity; the second piston chamber is communicated with the second air inlet cavity, and a through air passage (2163) is arranged between the first air inlet cavity and the second air inlet cavity.
10. The quick coupling according to claim 9, wherein the locking mechanism comprises a sleeve (21), a third elastic member, a sleeve chuck (26) and a limiting ball, the sleeve (21) is sleeved outside the valve core front seat (29), a mounting hole is formed in the sleeve (21), and the limiting ball is placed in the mounting hole; a control channel communicated with the butt joint air inlet cavity is formed in the outer shell, and the clamping sleeve (26) is slidably sleeved on the outer side of the sleeve (21) and is positioned in the control channel; the clamping sleeve (26) comprises a pressing end (262), an installation step (261) is formed on the outer wall of the clamping sleeve (26), one end of the third elastic piece is arranged on the installation step (261), and the pressing end (262) is correspondingly arranged on the installation hole; the outer surface of the male joint component (1) is provided with a positioning groove (111), and the positioning groove (111) is matched with the limiting ball.
11. The quick coupling according to claim 10, characterized in that the outer casing comprises a base (23), a first connecting seat (25), a second connecting seat (216), a third connecting seat (223) and a rear cover (220) which are fixedly connected in a mutually detachable manner, the inlet of the butt air inlet chamber opens into the first connecting seat (25), and the control channel is formed between the first connecting seat (25) and the sleeve (21); the sleeve (21), the second connecting seat (216) and the valve core front seat (29) enclose the second piston chamber, the second connecting seat (216), the third connecting seat (223) and the connecting pipe (224) enclose the first piston chamber, and the air passage (2163) is opened in the second connecting seat (216); the inlet of the conduction air inlet cavity is arranged on the rear cover (220).
12. The quick connector of claim 11, further comprising a seal assembly including a first seal ring (27), a second seal ring (227), a third seal ring (28), a fourth seal ring (210), a fifth seal ring (212), a sixth seal ring (214), a seventh seal ring (238), an eighth seal ring (233), a ninth seal ring (215), a tenth seal ring (219), and an eleventh seal ring (235), the first seal ring (27) being disposed at a contact surface between the first connection seat (25) and the ferrule (26), the second seal ring (227) being disposed at a contact surface between the ferrule (26) and the sleeve (21); the third sealing ring (28) is arranged on a contact surface between the valve core front seat (29) and the male joint component (1); the fourth sealing ring (210) is arranged on a contact surface between the sleeve (21) and the first connecting seat (25); the fifth sealing ring (212) is arranged on a contact surface between the valve core front seat (29) and the connecting pipe (224); the sixth sealing ring (214) is arranged on a contact surface between the second piston (231) and the connecting pipe (224); the seventh sealing ring (238) is arranged on a contact surface between the second connecting seat (216) and the connecting pipe (224); the eighth sealing ring (233) is arranged on a contact surface between the first piston (218) and the connecting pipe (224); the ninth sealing ring (215) is arranged on a contact surface between the second connecting seat (216) and the third connecting seat (223); the tenth sealing ring (219) is disposed on a first contact surface between the third connecting seat (223) and the rear cover (220); the eleventh sealing ring (235) is disposed on a second contact surface between the third connecting seat (223) and the rear cover (220).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021869185.7U CN212718594U (en) | 2020-08-31 | 2020-08-31 | Male joint assembly and quick joint with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021869185.7U CN212718594U (en) | 2020-08-31 | 2020-08-31 | Male joint assembly and quick joint with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212718594U true CN212718594U (en) | 2021-03-16 |
Family
ID=74925322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021869185.7U Withdrawn - After Issue CN212718594U (en) | 2020-08-31 | 2020-08-31 | Male joint assembly and quick joint with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212718594U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946922A (en) * | 2020-08-31 | 2020-11-17 | 格力电器（武汉）有限公司 | Male joint assembly and quick joint with same |
| CN117691400A (en) * | 2023-12-20 | 2024-03-12 | 江苏正迪微波技术有限公司 | Coaxial connector convenient to equipment grafting |
-
2020
- 2020-08-31 CN CN202021869185.7U patent/CN212718594U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946922A (en) * | 2020-08-31 | 2020-11-17 | 格力电器（武汉）有限公司 | Male joint assembly and quick joint with same |
| CN111946922B (en) * | 2020-08-31 | 2024-10-29 | 格力电器（武汉）有限公司 | Male connector assembly and quick connector provided with same |
| CN117691400A (en) * | 2023-12-20 | 2024-03-12 | 江苏正迪微波技术有限公司 | Coaxial connector convenient to equipment grafting |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210316 Effective date of abandoning: 20241029 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210316 Effective date of abandoning: 20241029 |