CN221704690U - Hydraulic pipe joint - Google Patents
Hydraulic pipe joint Download PDFInfo
- Publication number
- CN221704690U CN221704690U CN202420053693.XU CN202420053693U CN221704690U CN 221704690 U CN221704690 U CN 221704690U CN 202420053693 U CN202420053693 U CN 202420053693U CN 221704690 U CN221704690 U CN 221704690U
- Authority
- CN
- China
- Prior art keywords
- flow
- groove
- limiting plate
- limiting
- flow limiting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 34
- 210000002421 cell wall Anatomy 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Abstract
The application relates to the field of hydraulic pipelines. A hydraulic pipe joint comprises a pipe body and a flow limiting plate. The pipe body is provided with a flow channel, and the flow limiting plate is provided with a flow limiting hole. The flow limiting plate is connected to the pipe body, and the flow limiting hole is connected to the flow channel. The inner diameter of the flow limiting hole is smaller than the inner diameter of the flow channel. A limit groove is provided on the inner peripheral surface of the flow channel, and the limit plate is embedded in the limit groove. The thickness of the limit plate is smaller than the width of the limit groove slot, and the outer diameter of the limit plate is smaller than the inner diameter of the limit groove. In the initial stage of pipeline connection, when there is a large hydraulic pressure difference on both sides of the flow restriction plate, the hydraulic pressure difference causes the flow restriction plate to press against the wall of the limit groove, thereby restricting the flow rate of the liquid and reducing the impact caused by liquid flow; After the pipeline is connected for a period of time and the hydraulic pressure on both sides of the limiting plate is basically the same, the limiting plate will not compress the limiting groove wall, and the liquid can flow through the gap between the limiting plate and the limiting groove wall, as well as the limiting hole, to ensure the liquid flow in the pipeline.
Description
Technical Field
The application relates to the field of hydraulic pipelines, in particular to a hydraulic pipe joint.
Background
In the hydraulic pipeline system, a large number of valves are arranged to control the on-off of each pipeline.
Under the condition that the valve is switched from being closed to being opened, the hydraulic pressure difference on two sides of the valve causes liquid to flow rapidly in the pipeline, and the rapidly flowing liquid impacts the pipeline and the valve to influence the service life of a hydraulic pipeline system.
Disclosure of utility model
The application provides a hydraulic pipe joint for reducing impact generated by liquid flow in the initial stage of pipeline communication.
The application provides a hydraulic pipe joint, which adopts the following technical scheme:
a hydraulic pipe joint comprises a pipe body and a flow limiting plate,
The pipe body is provided with a flow passage, the flow limiting plate is provided with a flow limiting hole, the flow limiting plate is connected to the pipe body, the flow limiting hole is communicated with the flow passage, and the inner diameter of the flow limiting hole is smaller than that of the flow passage.
Through adopting above-mentioned technical scheme, pipeline intercommunication initial stage, restriction orifice supply liquid flow utilizes the baffle to hinder liquid flow in order to reduce the liquid velocity of flow, realizes reducing the impact that liquid flow produced.
Preferably, the inner peripheral surface of the runner is provided with a limit groove, the limit plate is embedded in the limit groove,
The thickness of the current limiting plate is smaller than the width of the notch of the limiting groove, and the outer diameter of the current limiting plate is smaller than the inner diameter of the limiting groove.
By adopting the technical scheme, under the condition that the liquid pressure difference at the two sides of the flow limiting plate is large in the initial stage of pipeline communication, the hydraulic pressure difference enables the flow limiting plate to press the wall of the limiting groove, so that liquid can only flow through the flow limiting hole to limit the flow rate of the liquid; after the pipeline is communicated for a period of time, under the condition that the hydraulic pressures at the two sides of the flow limiting plate are basically the same, the flow limiting plate can not press the wall of the limiting groove, and liquid can flow through the gap between the flow limiting plate and the wall of the limiting groove and at the flow limiting hole, so that the flow of the liquid in the pipeline is ensured.
Preferably, the device also comprises a flow limiting ring,
The flow limiting ring is connected to the flow limiting plate, the flow limiting ring is coaxial with the flow limiting hole, the inner diameter of the flow limiting ring is larger than that of the flow limiting hole, and the outer diameter of the flow limiting ring is larger than that of the flow channel.
By adopting the technical scheme, the integral strength of the current limiting plate and the current limiting ring is improved so as to ensure that the current limiting plate plays a role; the thickness of the whole flow limiting plate and the whole flow limiting ring is increased, and the maximum distance of the flow limiting plate moving in the limiting groove is reduced.
Preferably, the inner diameter of the flow limiting ring is smaller than the inner diameter of the flow channel.
By adopting the technical scheme, part of liquid flows to the outer side of the flow limiting ring under the guidance of the end face of the flow limiting ring, and then directly flows to the gap between the flow limiting plate and the groove wall of the limiting groove; another portion of the liquid flows into the restrictor ring to flow toward the restrictor orifice.
Preferably, the flow limiting plate is provided with a radial flow groove,
The radial flow groove extends in the direction perpendicular to the axial direction of the flow limiting hole, and penetrates through the flow limiting plate.
By adopting the technical scheme, the liquid can flow to the gap between the peripheral surface of the flow limiting plate and the groove wall of the limiting groove through the radial flow groove.
Preferably, the device further comprises a positioning part, wherein the positioning part is connected to the outer peripheral surface of the current limiting plate, a plurality of positioning parts are arranged at intervals along the circumferential direction of the current limiting plate, and one end of the positioning part, deviating from the current limiting plate, is used for being in sliding fit with the groove wall of the limiting groove.
By adopting the technical scheme, the positioning part enables the flow limiting plate to only axially slide along the pipe body, so that the relative position between the flow limiting hole and the flow channel is kept stable.
Preferably, the flow limiting plate is provided with a radial flow groove,
The radial flow groove extends in the direction perpendicular to the axial direction of the flow limiting hole, the radial flow groove penetrates through the flow limiting plate, and the radial flow groove avoids the positioning part.
Through adopting above-mentioned technical scheme, liquid can flow to the limiting plate outer peripheral face through the footpath chute and spacing groove cell wall clearance department.
Preferably, the flow restrictor orifice is coaxial with the flow passage.
By adopting the technical scheme, the liquid can stably flow in the pipeline.
Preferably, the tube body comprises a tube embedding and a sleeve,
The one end of sheathed tube is equipped with the caulking groove, caulking groove internal diameter is greater than the runner internal diameter, the one end of inlaying the pipe stretches into in the caulking groove, the terminal surface of inlaying the pipe and caulking groove cell wall enclose into the spacing groove.
Through adopting above-mentioned technical scheme, conveniently assemble the limiting plate to the spacing inslot.
Preferably, the sleeve is screwed to the tube.
By adopting the technical scheme, the sleeve is convenient to assemble with the embedded pipe.
In summary, the present application includes at least one of the following beneficial technical effects:
1. Under the conditions that the liquid pressure difference at the two sides of the flow limiting plate is large at the initial stage of pipeline communication, the hydraulic pressure difference enables the flow limiting plate to press the wall of the limiting groove, so that liquid can only flow through the flow limiting hole to limit the flow speed of the liquid, and the impact generated by the flow of the liquid is reduced;
2. After the pipeline is communicated for a period of time, under the condition that the hydraulic pressures at the two sides of the flow limiting plate are basically the same, the flow limiting plate can not press the wall of the limiting groove, and liquid can flow through the gap between the flow limiting plate and the wall of the limiting groove and at the flow limiting hole, so that the flow of the liquid in the pipeline is ensured.
Drawings
Fig. 1 is a cross-sectional view of a hydraulic fitting.
Fig. 2 is a schematic structural view of the baffle.
Reference numerals illustrate: 1. a tube body; 11. a flow passage; 12. embedding a pipe; 13. a sleeve; 131. a caulking groove; 14. a limit groove; 2. a baffle; 21. a flow-limiting plate; 211. a flow restricting orifice; 212. a radial flow groove; 22. a positioning part; 23. a shaft flow groove; 24. a flow-limiting ring; 241. and (5) a notch.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present application discloses a hydraulic pipe joint, which includes a pipe body 1 and a baffle plate 2.
The pipe body 1 is coaxially provided with a flow channel 11, and the flow channel 11 is used for flowing liquid. The pipe body 1 comprises a nested pipe 12 and a sleeve 13 which are coaxially connected, and the runner 11 coaxially penetrates through the nested pipe 12 and the sleeve 13.
One end of the sleeve 13 is coaxially provided with a caulking groove 131, the inner diameter of the caulking groove 131 is larger than that of the runner 11, and an inner thread is arranged on the inner circumferential surface of the caulking groove 131.
An external thread is provided at the outer circumferential surface of one end of the tube 12 so that the tube 12 is screw-coupled to the sleeve 13 with one end of the tube 12 extending into the caulking groove 131.
The length of the embedded pipe 12 extending into the embedded groove 131 is smaller than the length of the embedded groove 131 along the axial direction of the sleeve 13, so that the end face of the embedded pipe 12 and the groove wall of the embedded groove 131 are surrounded to form a limit groove 14. That is, the limiting groove 14 is located at the inner peripheral surface of the runner 11, and the limiting groove 14 is coaxial with the runner 11.
The thickness of the baffle plate 2 is smaller than the width of the notch of the limiting groove 14, and the baffle plate 2 is coaxially and slidably embedded in the limiting groove 14. The axial length of the limiting groove 14 along the pipe body 1 is the width of the notch of the limiting groove 14.
Referring to fig. 1 and 2, the baffle plate 2 includes a flow restricting plate 21 and a positioning portion 22. The outer diameter of the flow limiting plate 21 is larger than the inner diameter of the flow channel 11, and the outer diameter of the flow limiting plate 21 is smaller than the inner diameter of the limiting groove 14, namely, a gap exists between the outer peripheral surface of the flow limiting plate 21 and the wall of the limiting groove 14. The positioning parts 22 are connected to the outer peripheral surface of the flow limiting plate 21, a plurality of positioning parts 22 are arranged at intervals along the circumferential direction of the flow limiting plate 21, and shaft flow grooves 23 are formed between adjacent positioning parts 22. One end of the positioning part 22, which is away from the axis of the flow limiting plate 21, is used for being in sliding fit with the groove wall of the limiting groove 14, so that the flow limiting plate 21 is coaxial with the flow channel 11.
In this embodiment: the flow limiting plate 21 and the positioning portion 22 are integrally in a hexagonal prism shape; the region where the groove wall of the caulking groove 131 is attached to the positioning portion 22 has no internal thread, and in fig. 1, the internal thread is provided in the dashed line frame.
The restrictor plate 21 is provided with restrictor holes 211 and radial flow slots 212. The restriction hole 211 is coaxial with the restriction plate 21 such that the restriction hole 211 is coaxially communicated with the flow passage 11. The limiting aperture 211 has a small inner diameter inside the flow passage 11. The radial flow groove 212 is arranged at one side surface of the flow limiting plate 21, the radial flow groove 212 is communicated with the flow limiting hole 211, the extending direction of the radial flow groove 212 is perpendicular to the axial direction of the flow limiting hole 211, and the radial flow groove 212 penetrates through the flow limiting plate 21. The radial flow groove 212 is away from the positioning portion 22, that is, the radial flow groove 212 is communicated with the axial flow groove 23.
In this embodiment: the flow groove 212 is located at the surface of the flow restrictor plate 21 facing the tube 12.
The baffle 2 further comprises a restrictor ring 24. The restrictor ring 24 is coaxially connected to one side surface of the restrictor plate 21. The restrictor ring 24 and the radial flow groove 212 are located on the same side of the restrictor plate 21. The restrictor ring 24 is provided with a notch 241, the notch 241 being aligned with and in communication with the flow groove 212.
The inner diameter of the flow limiting ring 24 is larger than that of the flow limiting hole 211, the inner diameter of the flow limiting ring 24 is smaller than that of the flow channel 11, and the outer diameter of the flow limiting ring 24 is larger than that of the flow channel 11.
The thickness of the flow-limiting ring 24 and the flow-limiting plate 21 is the thickness of the baffle plate 2.
The implementation principle of the hydraulic pipe joint of the embodiment of the application is as follows: the liquid flow direction is the embedded pipe 12 flow direction sleeve 13;
The valve on one side of the sleeve 13 far away from the embedded pipe 12 is opened so that the hydraulic pressure difference on two sides of the flow limiting plate 21 is larger in the initial stage of pipeline communication, and the hydraulic pressure difference enables the flow limiting plate 21 to press the wall of the limiting groove 14, so that liquid can only flow through the flow limiting hole 211 to limit the flow rate of the liquid, and the impact generated by the liquid flow is reduced;
The valve is opened to ensure that the flow limiting plate 21 does not press the wall of the limiting groove 14 when the hydraulic pressures at the two sides of the flow limiting plate 21 are basically the same after the pipeline is communicated for a period of time, and the liquid can flow through the gap between the flow limiting plate 21 and the wall of the limiting groove 14 and the flow limiting hole 211 to ensure the flow of the liquid in the pipeline.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (7)
1. A hydraulic pipe joint is characterized by comprising a pipe body (1) and a flow limiting plate (21),
The pipe body (1) is provided with a flow passage (11), the flow limiting plate (21) is provided with a flow limiting hole (211), the flow limiting plate (21) is connected to the pipe body (1), the flow limiting hole (211) is communicated with the flow passage (11), and the inner diameter of the flow limiting hole (211) is smaller than that of the flow passage (11);
A limit groove (14) is arranged on the inner peripheral surface of the runner (11), the current limiting plate (21) is embedded in the limit groove (14),
The thickness of the current limiting plate (21) is smaller than the width of the notch of the limiting groove (14), and the outer diameter of the current limiting plate (21) is smaller than the inner diameter of the limiting groove (14);
also comprises a flow-limiting ring (24),
The flow limiting ring (24) is connected to the flow limiting plate (21), the flow limiting ring (24) is coaxial with the flow limiting hole (211), the inner diameter of the flow limiting ring (24) is larger than that of the flow limiting hole (211), and the outer diameter of the flow limiting ring (24) is larger than that of the flow channel (11);
The flow limiting plate (21) is provided with a radial flow groove (212),
The extending direction of the radial flow groove (212) is perpendicular to the axial direction of the flow limiting hole (211), and the radial flow groove (212) penetrates through the flow limiting plate (21).
2. The hydraulic pipe joint according to claim 1, characterized in that the restrictor ring (24) has an inner diameter smaller than the inner diameter of the flow channel (11).
3. The hydraulic pipe joint according to claim 1, further comprising a positioning portion (22), wherein the positioning portion (22) is connected to the outer peripheral surface of the flow limiting plate (21), the positioning portion (22) is provided with a plurality of positioning portions along the circumferential direction of the flow limiting plate (21), and one end of the positioning portion (22) away from the flow limiting plate (21) is used for being in sliding fit with the groove wall of the limiting groove (14).
4. A hydraulic pipe joint according to claim 3, characterized in that the run-off groove (212) is relieved from the positioning portion (22).
5. A hydraulic pipe joint according to claim 3, characterized in that the flow restriction orifice (211) is coaxial to the flow channel (11).
6. The hydraulic pipe joint according to claim 1, characterized in that the pipe body (1) comprises a nested pipe (12) and a sleeve (13),
One end of the sleeve (13) is provided with a caulking groove (131), the inner diameter of the caulking groove (131) is larger than that of the runner (11), one end of the embedded pipe (12) extends into the caulking groove (131), and the end face of the embedded pipe (12) and the groove wall of the caulking groove (131) are surrounded to form the limit groove (14).
7. A hydraulic pipe joint according to claim 6, characterized in that the sleeve (13) is screwed to the pipe inlay (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420053693.XU CN221704690U (en) | 2024-01-09 | 2024-01-09 | Hydraulic pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420053693.XU CN221704690U (en) | 2024-01-09 | 2024-01-09 | Hydraulic pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221704690U true CN221704690U (en) | 2024-09-13 |
Family
ID=92658037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420053693.XU Active CN221704690U (en) | 2024-01-09 | 2024-01-09 | Hydraulic pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221704690U (en) |
-
2024
- 2024-01-09 CN CN202420053693.XU patent/CN221704690U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102588632B (en) | Check valve | |
| CN109237172A (en) | A kind of blindmate fluid connector | |
| CN100585241C (en) | Hydraulic dual circuit explosion prevention valve | |
| CN101994726A (en) | One-way throttle valve | |
| CN221704690U (en) | Hydraulic pipe joint | |
| WO2012135985A1 (en) | Short-tube type throttle valve for air conditioning | |
| CN203516861U (en) | Straight-through type one-way valve | |
| CN113719614B (en) | Low-leakage long-service-life interconnected channel alloy cast iron elastic sealing ring structure | |
| CN202327262U (en) | Drip-proof check valve | |
| CN102913438A (en) | Hydraulic pump changeover valve | |
| CN205349901U (en) | Back pressure valve | |
| CN203656415U (en) | Flange for hydraulic pump | |
| CN103288176A (en) | Throttling device | |
| CN201954066U (en) | Large-caliber dynamic flow balancing valve | |
| CN203176028U (en) | One-way throttle valve and flow amplifier provided with one-way throttle valve | |
| CN221145396U (en) | Electromagnetic valve structure for preventing catheter displacement | |
| CN213451099U (en) | Hydraulic cylinder buffering return stroke quick opening structure | |
| CN206159638U (en) | Waste water ratio electromagnetic valve | |
| CN220168682U (en) | Novel water filling valve group with throttling function | |
| CN114005556B (en) | Combined type current-limiting Venturi tube suitable for CVS and machining method thereof | |
| CN221683704U (en) | Reversing valve structure | |
| CN111425547A (en) | Built-in valve of shock absorber | |
| CN213393692U (en) | Anti-drop self-sealing valve | |
| CN211820845U (en) | Three-way check valve | |
| CN205559887U (en) | Anti cavitation erosion check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |