CN114084832B - Exhaust assembly and hydraulic jack - Google Patents
Exhaust assembly and hydraulic jack Download PDFInfo
- Publication number
- CN114084832B CN114084832B CN202111418779.5A CN202111418779A CN114084832B CN 114084832 B CN114084832 B CN 114084832B CN 202111418779 A CN202111418779 A CN 202111418779A CN 114084832 B CN114084832 B CN 114084832B
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- oil
- switch
- exhaust
- hydraulic
- upper seat
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- 239000003921 oil Substances 0.000 claims abstract description 216
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims description 66
- 238000004806 packaging method and process Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 9
- 230000033001 locomotion Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/26—Adaptations or arrangements of pistons
- B66F3/28—Adaptations or arrangements of pistons telescopic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/202—Externally-operated valves mounted in or on the actuator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/044—Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F2700/00—Lifting apparatus
- B66F2700/05—Hydraulic jacks
- B66F2700/055—Jacks with a single cylinder
- B66F2700/057—Pistons, e.g. telescopic; Cylinders or sealing joints; Hydraulic travel-limiting devices or shock damping
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Actuator (AREA)
Abstract
The application discloses an exhaust assembly and a hydraulic jack, wherein the hydraulic jack comprises an upper seat, a piston pipe, an oil way valve and a pipe barrel, the oil way valve is arranged in the pipe barrel and divides the pipe barrel into an oil storage area and a hydraulic area, the oil storage area is an area, close to the upper seat, in the pipe barrel, the hydraulic area is an area, far away from the upper seat, in the pipe barrel, and the oil way valve controls the conduction of the oil storage area and the hydraulic area; the piston pipe guides hydraulic oil into the hydraulic area through the oil way valve, so that the oil way valve slides in the pipe barrel; the exhaust assembly is arranged in the upper seat and used for controlling the exhaust of the gas in the oil storage area. According to the application, the exhaust assembly is arranged in the hydraulic jack, so that the gas in the oil storage area can be timely exhausted, and the problems of poor use effect and even potential safety hazard caused by the increase of the air pressure in the oil storage area are avoided.
Description
Technical Field
The application relates to the field of mechanical equipment, in particular to an exhaust assembly and a hydraulic jack.
Background
The hydraulic jack is usually formed by mutually converting hydraulic oil in two areas inside to drive a piston to do reciprocating motion, so that the function of the jack is realized. Because of the small volume of hydraulic jacks, they are portable and are often used to raise the body of an automobile, allowing one to replace tires or repair the automobile.
However, when the hydraulic jack is required to lift an object by a high distance, the greater the gas pressure accumulated in the hydraulic jack is, the easier the use effect of the hydraulic jack is affected, and potential safety hazards can also occur when the piston is in a reciprocating state.
Disclosure of Invention
The application aims to provide an exhaust assembly and a hydraulic jack, which solve the problems of poor use effect and even potential safety hazard caused by the increase of internal air pressure in the use process of the hydraulic jack.
The application discloses an exhaust assembly for a hydraulic jack, which comprises an upper seat, a piston pipe, an oil way valve and a pipe barrel, wherein one end of the piston pipe is connected with the upper seat, and the other end of the piston pipe is connected with the oil way valve; the oil way valve is arranged in the pipe barrel and divides the pipe barrel into an oil storage area and a hydraulic area, the oil storage area is an area, close to the upper seat, in the pipe barrel, the hydraulic area is an area, far away from the upper seat, in the pipe barrel, and the oil way valve controls the conduction of the oil storage area and the hydraulic area; the piston pipe guides hydraulic oil in the hydraulic jack into the hydraulic area through the oil way valve, so that the oil way valve slides in the pipe barrel; the exhaust assembly is arranged in the upper seat and used for controlling the exhaust of the gas in the oil storage area.
Optionally, the exhaust assembly includes a valve core and an exhaust switch, a through hole is provided in the upper seat, the valve core is disposed in the through hole, and the exhaust switch is disposed at a side of the valve core away from the oil way valve and is abutted with the valve core; when the exhaust switch is pressed, the exhaust switch extrudes the valve core to open the valve core, and the gas in the oil storage area is discharged out of the hydraulic jack through the valve core.
Optionally, the through hole comprises a threaded hole and a column hole, the threaded hole is arranged between the column hole and the oil storage area, and the valve core is fixed in the threaded hole; the hydraulic jack further comprises a packaging cover, wherein the packaging cover is fixed on one side, far away from the pipe barrel, of the upper seat, and a connecting column corresponding to the column hole is arranged on the packaging cover; one end of the exhaust switch protrudes out of the packaging cover, and the other end of the exhaust switch penetrates through the connecting column and is movably connected with the connecting column; when the exhaust switch is pressed, the exhaust switch moves in the connecting column, abuts against the valve core, and presses the valve core to open the valve core.
Optionally, the connecting column includes a first circular side wall, a second circular side wall and a bottom wall, the diameter of the first circular side wall is larger than that of the second circular side wall, the bottoms of the first circular side wall and the second circular side wall are flush, and the bottoms of the first circular side wall and the second circular side wall are connected through the bottom wall; the exhaust switch comprises a switch cap, a switch column, a buckling piece and a first spring, wherein the diameter of the switch column is smaller than that of the second circular side wall and is inserted into the second circular side wall; the switch cap is connected with one end of the switch column, and the diameter of the switch cap is larger than that of the second circular side wall; the first spring is sleeved on the switch column, the diameter of the first spring is larger than that of the second circular side wall and smaller than that of the switch cap, one end of the first spring is abutted with the switch cap, and the other end of the first spring is abutted with the bottom wall of the connecting column; the buckling piece is located at one end, far away from the switch cap, of the switch column, is fixedly connected with the switch column, and the cross section area of the buckling piece is larger than that of the second circular side wall.
Optionally, the height of the first circular side wall is greater than the height of the second circular side wall, and the difference between the height of the first circular side wall and the height of the second circular side wall is smaller than the height of the switch cap.
Optionally, the switch cap is a column body with an opening at the bottom, and one end of the switch column is inserted into the opening of the switch cap and fixedly connected with the switch cap; one end of the first spring is inserted into the opening of the switch cap and is abutted with the switch cap; the diameter of the sidewall of the switch cap is greater than the diameter of the second circular sidewall.
Optionally, the switch post is kept away from the one end of switch cap is equipped with the ring channel, be equipped with in the lock piece with ring channel complex U-shaped opening, lock piece with switch post fixed connection.
The application also discloses a hydraulic jack, which comprises an oil discharging assembly and the exhaust assembly, wherein the oil discharging assembly controls the opening and closing of an oil discharging hole in the oil way valve and controls the conduction of the hydraulic area and the oil storage area; the oil discharging assembly controls the oil discharging hole to be conducted and simultaneously controls the exhaust switch to open the valve core.
Optionally, the oil discharging assembly comprises a first oil discharging rod, a second oil discharging rod, an oil discharging switch, an oil discharging valve and a second spring, wherein the oil discharging switch is arranged on one side of the upper seat far away from the pipe barrel, the first oil discharging rod corresponds to the oil discharging switch, the diameter of the second oil discharging rod is smaller than that of the first oil discharging rod, one end of the second oil discharging rod is connected with the first oil discharging rod, and the other end of the second oil discharging rod is inserted into the oil discharging hole; the second spring is sleeved on the second oil unloading rod, one end of the second spring is abutted with the first oil unloading rod, and the other end of the second spring is abutted with the oil way valve; the oil discharge valve is inserted into the oil discharge hole from one side of the oil way valve away from the upper seat, is connected with the second oil discharge rod and seals the oil discharge hole; when the oil discharging switch is pressed, the first oil discharging rod, the second oil discharging rod and the oil discharging valve move in the direction away from the upper seat, the second spring is compressed, and the oil discharging valve exposes out of the oil discharging hole, so that the oil storage area and the hydraulic area are conducted; and the oil discharge switch is also pressed to the air discharge switch so that the valve core is opened.
Optionally, the oil discharging switch comprises a knob and a bolt, and the bolt penetrates through the first end of the knob and is inserted into the upper seat to fix the knob on the upper seat; the second end of the knob is overlapped with the first oil discharging rod and the exhaust switch, and the second end of the knob is sequentially contacted with the first oil discharging rod and the exhaust switch in the pressing process, so that the oil discharging holes are sequentially opened, and the valve core is opened.
In general, when the piston tube makes multiple reciprocating movements in the tube barrel, more and more gas enters the oil storage area, so that the air pressure is increased, at the moment, part of the gas can enter the oil storage area, hydraulic oil in the hydraulic area is extruded into the oil storage area, the movement of the piston rod is influenced, and the normal work of the hydraulic jack is influenced; but may also lead to oil leakage or even other risks of use. According to the application, the exhaust assembly is arranged in the hydraulic jack, so that the gas in the oil storage area can be timely exhausted, and the problems of poor use effect and even potential safety hazard caused by the increase of the air pressure in the oil storage area are avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:
FIG. 1 is an external schematic view of a hydraulic jack according to an embodiment of the present application;
FIG. 2 is an exploded view of the interior of a hydraulic jack according to one embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of an exhaust assembly according to an embodiment of the present application;
FIG. 4 is a schematic view of an upper seat according to an embodiment of the present application;
FIG. 5 is a schematic view of a package cover according to an embodiment of the present application;
FIG. 6 is a schematic diagram of an exhaust switch according to an embodiment of the present application;
FIG. 7 is a schematic illustration of an assembled exhaust switch and packaging cover according to an embodiment of the present application;
Fig. 8 is a schematic view of an oil discharge assembly according to an embodiment of the present application.
100, A hydraulic jack; 110. an upper seat; 111. a through hole; 112. a threaded hole; 113. a post hole; 120. a piston tube; 121. a hydraulic rod; 130. an oil path valve; 131. an oil discharging hole; 140. a tube; 150. a housing; 160. a base; 170. a top plate; 180. a top plate fixing member; 190. a handle; 200. an exhaust assembly; 210. a valve core; 220. an exhaust switch; 221. a switch cap; 222. a switch column; 223. a fastener; 224. a first spring; 225. an annular groove; 226. a U-shaped opening; 300. a package cover; 310. a connecting column; 311. a first circular sidewall; 312. a second circular sidewall; 313. a bottom wall; 400. an oil discharge assembly; 410. a first oil discharge rod; 420. a second oil discharging rod; 430. an oil discharge switch; 431. a knob; 432. a plug pin; 440. an oil discharge valve; 450. and a second spring.
Detailed Description
The application is described in detail below with reference to the attached drawings and alternative embodiments.
Referring to fig. 1 and 2, the application discloses a hydraulic jack 100, wherein the hydraulic jack 100 comprises a housing 150, an upper seat 110, a tube 140, a base 160, a handle 190, a piston tube 120, a hydraulic rod 121, an oil way valve 130 and a top plate 170, wherein the top plate 170 is fixed on the housing 150 through a top plate fixing piece 180, the housing 150 is sleeved outside the tube 140, the tube 140 is sleeved outside the piston tube 120, the piston tube 120 is sleeved outside the hydraulic rod 121, the upper seat 110 and the base 160 are respectively positioned at two ends of the housing 150, the upper seat 110 is fixedly connected with the housing 150, the base 160 is fixedly connected with the tube 140, one end of the piston tube 120 is fixedly connected with the upper seat 110, the other end is fixedly connected with the oil way valve 130, and the handle 190 is in transmission connection with the hydraulic rod 121.
The oil way valve 130 is disposed in the tube 140, and divides the tube 140 into an oil storage area and a hydraulic area, wherein the oil storage area is an area of the tube 140 close to the upper seat 110, the hydraulic area is an area of the tube 140 far away from the upper seat 110, and the oil way valve 130 controls the conduction of the oil storage area and the hydraulic area; the oil storage area is filled with hydraulic oil, and the piston tube 120 guides the hydraulic oil into the hydraulic area through the oil path valve 130, so that the oil path valve 130 slides in the tube 140. Specifically, the handle 190 controls the hydraulic rod 121 to move up and down in the piston tube 120, so that the hydraulic oil in the oil storage area enters the hydraulic area to drive the housing 150 and the top plate 170 to move up, and the top plate 170 moves up to jack up the weight because the top plate 170 is propped under the weight.
Generally, when the piston tube 120 performs multiple reciprocating movements in the tube 140, so that more and more gas enters the oil storage area, the air pressure becomes larger, and at this time, part of the air enters the hydraulic area, so that hydraulic oil in the hydraulic area is extruded into the oil storage area, which affects the movement of the piston rod and the normal operation of the hydraulic jack 100; but may also lead to oil leakage or even other risks of use. As shown in fig. 3, in the present application, by arranging the exhaust assembly 200 in the hydraulic jack 100, the exhaust assembly 200 is arranged in the upper seat 110, and the exhaust of the gas in the oil storage area is controlled, so that the gas in the oil storage area can be exhausted in time, and the problems of poor use effect and even potential safety hazard caused by the increase of the air pressure in the oil storage area are avoided.
Referring to fig. 3-5, the exhaust assembly 200 includes a valve core 210 and an exhaust switch 220, a through hole 111 is formed in the upper seat 110, the valve core 210 is disposed in the through hole 111, and the exhaust switch 220 is disposed on a side of the valve core 210 away from the oil path valve 130 and abuts against the valve core 210; when the air release switch 220 is pressed, the air release switch 220 presses the valve core 210 to open the valve core 210, and the air in the oil storage area is discharged from the hydraulic jack 100 through the valve core 210. The valve core 210 has dual functions of air leakage prevention and air exhaust, and the valve core 210 is applied to the hydraulic jack 100, so that hydraulic oil and air in an oil storage area can be prevented from leaking out under normal conditions, oil leakage is avoided, and normal use of the hydraulic jack 100 is affected; when the air discharge is required, the valve core 210 is pressed by the air discharge switch 220, and the leakage of the hydraulic oil is avoided while the air is discharged, thereby excellently satisfying the use effect.
Specifically, the through hole 111 includes a threaded hole 112 and a post hole 113, the threaded hole 112 is disposed between the post hole 113 and the oil storage area, and the valve core 210 is fixed in the threaded hole 112 and is screwed with the threaded hole 112, so as to prevent hydraulic oil and air from leaking between the valve core 210 and the sidewall of the threaded hole 112. The hydraulic jack 100 further comprises a packaging cover 300, wherein the packaging cover 300 is fixed on one side of the upper seat 110 away from the pipe barrel 140, and the packaging cover 300 is provided with a connecting column 310 corresponding to the column hole 113; one end of the exhaust switch 220 protrudes out of the packaging cover 300, and the other end penetrates through the connecting column 310 and is movably connected with the connecting column 310; when the air release switch 220 is pressed, the air release switch 220 moves in the connection column 310, abuts against the valve core 210, presses the valve core 210, and opens the valve core 210. The additional packing cover 300 can cover the through hole 111 of the upper seat 110 and the valve core 210, thereby having an aesthetic effect and protecting the exhaust assembly 200. Of course, the encapsulation cover 300 is not provided, and the exhaust switch 220 may be directly and movably connected to the column hole 113.
As further shown in fig. 5-7, the connecting post 310 is hollowed out, specifically, the connecting post 310 includes a first circular side wall 311, a second circular side wall 312, and a bottom wall 313, the diameter of the first circular side wall 311 is larger than that of the second circular side wall 312, the bottoms of the first circular side wall 311 and the second circular side wall 312 are flush, and the bottoms of the first circular side wall 311 and the second circular side wall 312 are connected by the bottom wall 313, that is, the cross section of the post hole 113 can be regarded as a U-shaped structure. The vent switch 220 includes a switch cap 221, a switch post 222, a snap 223, and a first spring 224, the switch post 222 having a diameter smaller than the diameter of the second circular sidewall 312 and being inserted into the second circular sidewall 312; the switch cap 221 is connected with one end of the switch post 222, and the diameter of the switch cap 221 is larger than that of the second circular sidewall 312; the first spring 224 is sleeved on the switch post 222, the diameter of the first spring 224 is larger than that of the second circular side wall 312 and smaller than that of the switch cap 221, one end of the first spring 224 is abutted against the switch cap 221, and the other end is abutted against the bottom wall 313 of the connecting post 310; the fastening member 223 is located at an end of the switch post 222 away from the switch cap 221, and is fixedly connected to the switch post 222, and the cross-sectional area of the fastening member 223 is greater than the cross-sectional area of the second circular sidewall 312.
Although the valve core 210 is provided with a spring inside itself, after the valve core 210 is pressed, the valve core 210 can be restored to its original state by itself, in order to avoid damage to the valve core 210 caused by excessive external force, the present application further provides the exhaust switch 220 with a first spring 224, which can protect the valve core 210 and increase the restoration effect of the exhaust assembly 200. Further, the switch cap 221, the switch post 222 and the first spring 224 are firmly fixed to the package cover 300 by the snap 223, preventing the problem of falling off of parts during assembly and disassembly, thereby facilitating installation. In addition, the switch cap 221, the switch post 222, the fastener 223, the first spring 224 and the package cover 300 are tightly attached, which is beneficial to reducing the volume of the whole exhaust assembly 200 and realizing the miniaturization of the structure. In addition, after the connection column 310 is designed as described above, even if the hydraulic jack 100 is filled with water, the water falls into the connection column 310, and the water can be accumulated between the first circular side wall 311 and the second circular side wall 312 due to the shielding of the opening and closing cap 221 and the shape of the connection column 310, the water does not enter the through hole 111 of the upper seat 110, and the normal exhaust of the valve core 210 is not affected.
An annular groove 225 is arranged at one end of the switch post 222 far away from the switch cap 221, a U-shaped opening 226 matched with the annular groove 225 is arranged in the buckling piece 223, and the buckling piece 223 is fixedly connected with the switch post 222. The buckling piece 223 is similar to a U-shaped sheet structure, and the two ends of the buckling piece 223 are contracted inwards to prevent falling off after being fixed; in addition, the bottoms and ends of the fastener 223 are slightly convex inward, reducing the contact area of the fastener 223 with the switch post 222, so that the fastener 223 is easy to insert into the annular groove 225 when the fastener 223 is subjected to a large force, and the fastener 223 is not cracked.
Moreover, the height of the first circular sidewall 311 is greater than the height of the second circular sidewall 312, and the difference between the height of the first circular sidewall 311 and the height of the second circular sidewall 312 is smaller than the height of the opening and closing cap 221, so that the moving distance of the opening and closing cap 221 is greater, and the exhaust of the valve core 210 can be better controlled. In addition, the switch cap 221 is a column body with an opening at the bottom, and one end of the switch column 222 is inserted into the opening of the switch cap 221 and fixedly connected with the switch cap 221; one end of the first spring 224 is inserted into the opening of the switch cap 221 and abuts against the switch cap 221; the diameter of the sidewall of the switch cap 221 is greater than the diameter of the second circular sidewall 312. After the switch cap 221 is pressed to the bottom, the switch cap 221 can be attached to the bottom wall 313 of the connection post 310, further increasing the moving distance of the switch cap 221.
The switch cap 221 and the switch post 222 are integrally formed, and the first spring 224 is attached to a side wall of the switch cap 221. The first spring 224 can be engaged between the switch cap 221 and the switch post 222 after being installed therebetween, thereby being not easy to fall off and being convenient to install.
In addition, as shown in fig. 2 and 8, the hydraulic jack 100 further includes an oil discharge assembly 400, and the oil discharge assembly 400 controls the opening and closing of the oil discharge hole 131 in the oil path valve 130, and controls the conduction between the hydraulic area and the oil storage area; the oil discharge assembly 400 controls the exhaust switch 220 to open the valve core 210 while controlling the oil discharge hole 131 to be conducted. Thus, the hydraulic jack 100 can realize oil discharge and air discharge simultaneously through one operation, and the action efficiency of the hydraulic jack 100 is greatly improved; and the problems of abnormal use and potential safety hazard caused by forgetting to exhaust in the use process are avoided.
Specifically, the oil discharge assembly 400 includes a first oil discharge rod 410, a second oil discharge rod 420, an oil discharge switch 430, an oil discharge valve 440, and a second spring 450, wherein the oil discharge switch 430 is disposed on a side of the upper seat 110 away from the tube 140, the first oil discharge rod 410 corresponds to the oil discharge switch 430, the diameter of the second oil discharge rod 420 is smaller than that of the first oil discharge rod 410, one end of the second oil discharge rod 420 is connected with the first oil discharge rod 410, and the other end is inserted into the oil discharge hole 131; the second spring 450 is sleeved on the second oil unloading rod 420, one end of the second spring is abutted against the first oil unloading rod 410, and the other end of the second spring is abutted against the oil way valve 130; the oil discharge valve 440 is inserted into the oil discharge hole 131 from a side of the oil path valve 130 remote from the upper seat 110, is connected to the second oil discharge rod 420, and seals the oil discharge hole 131; when the oil discharge switch 430 is pressed, the first oil discharge lever 410, the second oil discharge lever 420, and the oil discharge valve 440 are moved in a direction away from the upper seat 110, the second spring 450 is compressed, and the oil discharge valve 440 is exposed to the oil discharge hole 131, so that the oil storage area and the hydraulic area are conducted; and the oil discharge switch 430 is also pressed to the air discharge switch 220 so that the valve core 210 is opened.
In this embodiment, the hydraulic area and the oil storage area in the pipe barrel 140 are conducted by using the oil discharging hole 131 of the oil way valve 130, the conduction and the sealing of the oil discharging hole 131 are realized by matching the first oil discharging rod 410, the second oil discharging rod 420, the oil discharging switch 430, the oil discharging valve 440 and the second spring 450, the oil discharging switch 430 is arranged in the upper seat 110, after the hydraulic jack 100 is used, a user can transfer kinetic energy to the first oil discharging rod 410, the second oil discharging rod 420 and the oil discharging valve 440 by simply controlling the oil discharging switch 430, the oil discharging hole 131 is conducted, the operation of this oil discharging process is simple, and after the oil discharging hole 131 is conducted, hydraulic oil can be quickly dropped into the oil storage area from the hydraulic area under the action of pressure, so that the hydraulic jack 100 can be quickly reset, and the next round of use can be quickly stored or unfolded.
The oil discharge switch 430 includes a knob 431 and a pin 432, and the pin 432 penetrates through a first end of the knob 431 and is inserted into the upper seat 110 to fix the knob 431 to the upper seat 110; the second end of the knob 431 is overlapped with the first oil discharging rod 410 and the air discharging switch 220, and the second end of the knob 431 is sequentially contacted with the first oil discharging rod 410 and the air discharging switch 220 in the pressing process, so that the oil discharging hole 131 is sequentially opened, and the valve core 210 is opened.
When not in use, the bolt 432 can be pulled out to detach the knob 431, so that the risk that the oil discharge switch 430 is easily damaged due to the exposure of a large area to the outside can be avoided, and the problem that the knob 431 is accidentally pressed for a long time to enable the exhaust assembly 200 and the oil discharge assembly 400 to be always in an opening device can be avoided, and the service life is influenced. When the oil discharging device is used, the effect of simultaneously opening the exhaust assembly 200 and the oil discharging assembly 400 can be achieved by simply pressing one end of the knob 431 by utilizing the lever principle, so that time and labor are saved.
The above description of the application in connection with specific alternative embodiments is further detailed and it is not intended that the application be limited to the specific embodiments disclosed. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the application, and these should be considered to be within the scope of the application.
Claims (8)
1. An exhaust assembly is used for a hydraulic jack and is characterized by comprising an upper seat, a piston tube, an oil way valve and a tube barrel, wherein one end of the piston tube is connected with the upper seat, and the other end of the piston tube is connected with the oil way valve; the oil way valve is arranged in the pipe barrel and divides the pipe barrel into an oil storage area and a hydraulic area, the oil storage area is an area, close to the upper seat, in the pipe barrel, the hydraulic area is an area, far away from the upper seat, in the pipe barrel, and the oil way valve controls the conduction of the oil storage area and the hydraulic area;
the piston pipe guides hydraulic oil in the hydraulic jack into the hydraulic area through the oil way valve, so that the oil way valve slides in the pipe barrel; the exhaust component is arranged in the upper seat and used for controlling the exhaust of the gas in the oil storage area;
The exhaust assembly comprises a valve core and an exhaust switch, a through hole is formed in the upper seat, the valve core is arranged in the through hole, and the exhaust switch is arranged on one side of the valve core away from the oil way valve and is abutted with the valve core;
When the exhaust switch is pressed, the exhaust switch extrudes the valve core to open the valve core, and the gas in the oil storage area is discharged out of the hydraulic jack through the valve core;
The through hole comprises a threaded hole and a column hole, the threaded hole is arranged between the column hole and the oil storage area, and the valve core is fixed in the threaded hole;
The hydraulic jack further comprises a packaging cover, wherein the packaging cover is fixed on one side, far away from the pipe barrel, of the upper seat, and a connecting column corresponding to the column hole is arranged on the packaging cover; one end of the exhaust switch protrudes out of the packaging cover, and the other end of the exhaust switch penetrates through the connecting column and is movably connected with the connecting column;
when the exhaust switch is pressed, the exhaust switch moves in the connecting column, abuts against the valve core, and presses the valve core to open the valve core.
2. The exhaust assembly as recited in claim 1 wherein said connecting post comprises a first circular side wall, a second circular side wall and a bottom wall, said first circular side wall having a diameter greater than a diameter of said second circular side wall, bottom portions of said first circular side wall and second circular side wall being flush, and bottom portions of said first circular side wall and second circular side wall being connected by a bottom wall;
The exhaust switch comprises a switch cap, a switch column, a buckling piece and a first spring, wherein the diameter of the switch column is smaller than that of the second circular side wall and is inserted into the second circular side wall; the switch cap is connected with one end of the switch column, and the diameter of the switch cap is larger than that of the second circular side wall; the first spring is sleeved on the switch column, the diameter of the first spring is larger than that of the second circular side wall and smaller than that of the switch cap, one end of the first spring is abutted with the switch cap, and the other end of the first spring is abutted with the bottom wall of the connecting column; the buckling piece is located at one end, far away from the switch cap, of the switch column, is fixedly connected with the switch column, and the cross section area of the buckling piece is larger than that of the second circular side wall.
3. The exhaust assembly as recited in claim 2 wherein a height of said first circular sidewall is greater than a height of said second circular sidewall and a height difference between said first circular sidewall and said second circular sidewall is less than a height of said switch cap.
4. The vent assembly of claim 3 wherein said switch cap is a bottom open cylinder, one end of said switch cylinder being inserted into said switch cap opening and fixedly connected to said switch cap; one end of the first spring is inserted into the opening of the switch cap and is abutted with the switch cap; the diameter of the sidewall of the switch cap is greater than the diameter of the second circular sidewall.
5. The vent assembly of claim 2, wherein an annular groove is formed in an end of the switch post remote from the switch cap, a U-shaped opening is formed in the fastener and mates with the annular groove, and the fastener is fixedly connected with the switch post.
6. A hydraulic jack, characterized in that the hydraulic jack comprises an oil discharging component and an exhaust component according to any one of claims 1-5, the oil discharging component controls the opening and closing of an oil discharging hole in the oil way valve and controls the conduction of the hydraulic area and the oil storage area; the oil discharging assembly controls the oil discharging hole to be conducted and simultaneously controls the exhaust switch to open the valve core.
7. The hydraulic jack of claim 6, wherein the oil discharge assembly includes a first oil discharge rod, a second oil discharge rod, an oil discharge switch, an oil discharge valve, and a second spring, the oil discharge switch is disposed at a side of the upper seat away from the tube, the first oil discharge rod corresponds to the oil discharge switch, a diameter of the second oil discharge rod is smaller than a diameter of the first oil discharge rod, one end of the second oil discharge rod is connected with the first oil discharge rod, and the other end is inserted into the oil discharge hole; the second spring is sleeved on the second oil unloading rod, one end of the second spring is abutted with the first oil unloading rod, and the other end of the second spring is abutted with the oil way valve; the oil discharge valve is inserted into the oil discharge hole from one side of the oil way valve away from the upper seat, is connected with the second oil discharge rod and seals the oil discharge hole;
When the oil discharging switch is pressed, the first oil discharging rod, the second oil discharging rod and the oil discharging valve move in the direction away from the upper seat, the second spring is compressed, and the oil discharging valve exposes out of the oil discharging hole, so that the oil storage area and the hydraulic area are conducted; and the oil discharge switch is also pressed to the air discharge switch so that the valve core is opened.
8. The hydraulic jack of claim 7, wherein the oil discharge switch includes a knob and a latch, the latch extending through a first end of the knob and being inserted into the upper seat to secure the knob to the upper seat; the second end of the knob is overlapped with the first oil discharging rod and the exhaust switch, and the second end of the knob is sequentially contacted with the first oil discharging rod and the exhaust switch in the pressing process, so that the oil discharging holes are sequentially opened, and the valve core is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111418779.5A CN114084832B (en) | 2021-11-26 | 2021-11-26 | Exhaust assembly and hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111418779.5A CN114084832B (en) | 2021-11-26 | 2021-11-26 | Exhaust assembly and hydraulic jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114084832A CN114084832A (en) | 2022-02-25 |
| CN114084832B true CN114084832B (en) | 2024-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111418779.5A Active CN114084832B (en) | 2021-11-26 | 2021-11-26 | Exhaust assembly and hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114084832B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508408A (en) * | 2009-01-20 | 2009-08-19 | 祥力机电技术（深圳）有限公司 | Hydraulic jack |
| CN113277437A (en) * | 2021-05-25 | 2021-08-20 | 杭州天铭科技股份有限公司 | Hydraulic jack |
| CN217676587U (en) * | 2021-11-26 | 2022-10-28 | 深圳扬宁汽车配件有限公司 | Exhaust assembly and hydraulic jack |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB487909A (en) * | 1936-05-11 | 1938-06-28 | Mercier Jean | Improvements in or relating to jacks |
| GB561024A (en) * | 1942-10-16 | 1944-05-02 | William Frederick Forrest Mart | Improvements in or relating to electrically-controlled fluid-pressure operated jacks |
| JPH09222102A (en) * | 1996-02-19 | 1997-08-26 | Koshin Seikosho:Kk | Hydraulic actuator |
| TW575094U (en) * | 2002-12-13 | 2004-02-01 | Kuen-Shan Shiu | Pressure adjusting and discharging device for pneumatic pump |
-
2021
- 2021-11-26 CN CN202111418779.5A patent/CN114084832B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508408A (en) * | 2009-01-20 | 2009-08-19 | 祥力机电技术（深圳）有限公司 | Hydraulic jack |
| CN113277437A (en) * | 2021-05-25 | 2021-08-20 | 杭州天铭科技股份有限公司 | Hydraulic jack |
| CN217676587U (en) * | 2021-11-26 | 2022-10-28 | 深圳扬宁汽车配件有限公司 | Exhaust assembly and hydraulic jack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114084832A (en) | 2022-02-25 |
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