CN220850889U - Pressure regulating valve - Google Patents
Pressure regulating valve Download PDFInfo
- Publication number
- CN220850889U CN220850889U CN202322508247.1U CN202322508247U CN220850889U CN 220850889 U CN220850889 U CN 220850889U CN 202322508247 U CN202322508247 U CN 202322508247U CN 220850889 U CN220850889 U CN 220850889U
- Authority
- CN
- China
- Prior art keywords
- valve body
- spring
- joint
- plunger
- pressure regulating
- 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
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model provides a pressure regulating valve, and belongs to the technical field of hydraulic accessories. The problems of poor tightness and the like of the existing pressure regulating valve are solved. The pressure regulating valve comprises a valve body, a joint and a spring, wherein the valve body is provided with an oil passage which is axially communicated, the top of the valve body is in threaded connection with the joint, a pressure relief hole I is radially communicated in the middle of the valve body, the spring is positioned in the oil passage, the upper end of the spring is abutted against the joint, the inner wall of the valve body is provided with a radially inward convex shoulder, a plunger which is columnar is arranged in the valve body, the spring is sleeved on the plunger, the lower end of the spring is abutted against a step surface which is arranged on the plunger, the plunger is provided with a conical surface, and the spring provides elasticity to enable the conical surface of the plunger to be always provided with a trend of sealing against the shoulder. The utility model has the advantages of convenient manufacture, high precision, good sealing performance and the like.
Description
Technical Field
The utility model belongs to the technical field of hydraulic accessories, and particularly relates to a pressure regulating valve.
Background
The pressure regulating valve is a pressure regulating valve, as shown in fig. 1, the existing pressure regulating valve comprises a valve body 1, a connector 2, a spring 3, a valve rod 6 and a steel ball 7, wherein the valve body 1 is provided with an axially-through oil duct 1a, the top of the valve body 1 is in threaded connection with the connector 2 through internal threads, the top of the oil duct 1a is plugged by the connector 2, a pressure relief hole is formed in the side part of the valve body 1, the spring 3, the valve rod 6 and the steel ball 7 are positioned in the oil duct 1a, the spring 3 is sleeved with the valve rod 6, the upper end of the spring 3 is abutted against the connector 2, the lower end of the spring 3 is abutted against a stepped surface provided by the valve rod 6, the end face of the valve rod 6 facing the steel ball 7 is a concave spherical surface, the inner wall of the valve body 1 is provided with a radially-inward convex blocking shoulder 1c, and the spring 3 provides elasticity to enable the spherical surface of the valve rod 6 to be abutted against the steel ball 7 and enable the steel ball 7 to have a trend of being abutted against the blocking shoulder 1 c.
In the use of the existing pressure regulating valve, when the pressure of a medium exceeds the elasticity of a spring 3, the medium pushes a steel ball 7 and a valve rod 6 to move upwards, the medium is discharged from a pressure relief hole, the steel ball 7 is plugged in a shoulder 1c by the elasticity of the spring 3 in general, but the steel ball 7 is sealed by the spherical surface and the shoulder 1c, the manufacturing requirement on the steel ball 7 is high, the sealing of the steel ball 7 and the shoulder 1c is a line-to-line sealing, the sealing effect is not ideal enough, the pressure regulating valve is not suitable for a high-pressure high-precision use environment, the spherical surface of the valve rod 6 is inconvenient to process, the limiting and abutting effects on the steel ball 7 are poor, the problems of offset and uneven stress of the steel ball 7 exist, and the sealing effect is affected.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides the pressure regulating valve which is convenient to manufacture, high in precision and good in tightness.
The aim of the utility model can be achieved by the following technical scheme: the utility model provides a pressure regulating valve, includes valve body, joint and spring, the valve body have the oil duct that the axial link up, valve body top and joint threaded connection, the radial relief vent that has link up in valve body middle part first, the spring be arranged in the oil duct and the upper end of spring conflict in the joint, the valve body inner wall have radial inward protruding fender shoulder, its characterized in that, the valve body in be equipped with and be columnar plunger, the spring housing locate plunger and the lower extreme of spring conflict on the step face that the plunger has, the plunger have the conical surface, the spring provide the elasticity and make the conical surface of plunger have the trend of sealing in fender shoulder all the time.
In the pressure regulating valve, the bottom of the plunger is provided with the guide section which extends axially and is cylindrical, the inner wall of the valve body is in clearance fit with the guide section, the guide section is provided with the liquid inlet blind hole which is axially formed, and the guide section is also provided with the liquid outlet hole which penetrates through the liquid inlet blind hole radially.
In the above-mentioned pressure regulating valve, the outer wall of the guide section is provided with an annular groove communicated with the liquid outlet hole, and the groove width of the annular groove is larger than the aperture of the liquid outlet hole.
In the above-mentioned pressure regulating valve, the joint has a pressure relief hole II penetrating in the axial direction.
In one of the above-mentioned pressure regulating valves, the joint has a mounting cavity into which the upper end of the spring is inserted.
In the pressure regulating valve, the joint is in threaded connection with the valve body through external threads, and the joint is connected with a lock nut through external threads.
In another aspect, in the above-mentioned pressure regulating valve, the joint is screwed to the valve body by an external thread, and the valve body is screwed to the screw abutting against the joint. Through rotating the joint, the elasticity of the spring can be adjusted, the pressure relief pressure can be adjusted, the operation is convenient, after the pressure relief pressure is adjusted, the screw is rotated and is made to abut against the joint, the joint is locked, and the working stability is guaranteed.
Compared with the prior art, the pressure regulating valve is convenient to manufacture, high in manufacturing precision, good in sealing performance, suitable for use environments with high pressure and high precision and good in working stability.
Drawings
Fig. 1 is a sectional view showing the structure of a conventional pressure regulating valve.
Fig. 2 is a perspective view of the pressure regulating valve.
Fig. 3 is a sectional view showing the structure of the present pressure regulating valve.
In the figure, 1, a valve body; 1a, an oil duct; 1b, a first pressure relief hole; 1c, a shoulder; 2. a joint; 2a, a pressure relief hole II; 2b, a mounting cavity; 3. a spring; 4. a plunger; 4a, conical surface; 4b, a guide section; 4b1, a liquid inlet blind hole; 4b2, a liquid outlet hole; 4b3, annular groove; 5. a lock nut; 6. a valve stem; 7. and (5) steel balls.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 2 and 3, the pressure regulating valve comprises a valve body 1, a joint 2 and a spring 3, wherein the valve body 1 is provided with an oil duct 1a which is axially penetrated, the top of the valve body 1 is in threaded connection with the joint 2, pressure relief holes 1b are radially penetrated in the middle of the valve body 1, the number of the pressure relief holes 1b in the embodiment is two and symmetrically arranged, the spring 3 is positioned in the oil duct 1a, the upper end of the spring 3 is abutted against the joint 2, the inner wall of the valve body 1 is provided with a radially inwards protruding shoulder 1c, a columnar plunger 4 is arranged in the valve body 1, the spring 3 is sleeved on the plunger 4, the lower end of the spring 3 is abutted against a step surface of the plunger 4, the plunger 4 is provided with a conical surface 4a, and the spring 3 provides elasticity to enable the conical surface 4a of the plunger 4 to always have a trend of sealing in the shoulder 1 c.
The conical surface 4a of the plunger 4 in the pressure regulating valve is convenient to process and manufacture, the precision can reach 1.5 threads, the conical surface 4a and the stop shoulder 1c are used for sealing surfaces and lines, the sealing performance is good, the pressure regulating valve is suitable for a high-pressure high-precision use environment, the conical surface 4a has a guiding function, the conical surface 4a can be adaptively sealed on the stop shoulder 1c, the problems of offset and uneven stress do not exist, and the sealing effect is good.
Further, the bottom of the plunger 4 has a guiding section 4b extending axially and having a cylindrical shape, the inner wall of the valve body 1 is in clearance fit with the guiding section 4b, the guiding section 4b has a liquid inlet blind hole 4b1 opened axially, the guiding section 4b further has liquid outlet holes 4b2 penetrating radially to the liquid inlet blind hole 4b1, and in this embodiment, the number of the liquid outlet holes 4b2 is two and symmetrically arranged. The guide section 4b plays a guide role, so that the offset of the plunger 4 is avoided, and the working stability of the plunger 4 is improved; when liquid is fed, the medium enters the liquid feeding blind hole 4b1 and enters the liquid outlet hole 4b2, when the pressure of the medium exceeds the elastic force of the spring 3, the medium pushes the plunger 4 to move upwards, and the medium flows from the liquid outlet hole 4b2 to the pressure relief hole 1b to relieve pressure.
The outer wall of the guide section 4b is provided with an annular groove 4b3 communicated with the liquid outlet hole 4b2, the groove width of the annular groove 4b3 is larger than the aperture of the liquid outlet hole 4b2, and the annular groove 4b3 ensures that the medium flow is large, thereby achieving the purpose of rapid pressure relief and high pressure regulating speed. The joint 2 is provided with a pressure relief hole II 2a which is axially communicated, and the pressure relief hole II 2a is newly added with a pressure relief path, so that pressure relief is rapid, and the purpose of rapid pressure regulation is achieved. The joint 2 is provided with a mounting cavity 2b for inserting the upper end of the spring 3, so that the spring 3 is limited, and the working stability of the spring 3 is good.
The joint 2 is in threaded connection with the valve body 1 through external threads, and the joint 2 is connected with a locking nut 5 through external threads. Through rotating joint 2, can adjust the elasticity of spring 3, can adjust the size of pressure release pressure, convenient operation, after adjusting, rotate lock nut 5 and make lock nut 5 contradict in valve body 1 top, with joint 2 locking, guaranteed the stability of work.
What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. The utility model provides a pressure regulating valve, includes valve body (1), joint (2) and spring (3), valve body (1) have axial through oil duct (1 a), valve body (1) top and joint (2) threaded connection, valve body (1) middle part radially link up there is relief hole one (1 b), spring (3) be arranged in oil duct (1 a) and the upper end of spring (3) conflict in joint (2), valve body (1) inner wall have radially inwards protruding fender shoulder (1 c), characterized in that, valve body (1) in be equipped with in be plunger (4) that are the column, spring (3) cover locate plunger (4) and the lower extreme of spring (3) conflict on the step face that plunger (4) have, plunger (4) have conical surface (4 a), spring (3) provide the elasticity and make conical surface (4 a) of plunger (4) have the trend of sealing in fender shoulder (1 c) all the time, the bottom of plunger (4) have axial extension and be in guide section (4 b), guide section (4 b) that are cylindrical guide section (1 b) have, guide section (4 b) and the axial clearance fit into valve body (4 b) have, the guide section (4 b) is also provided with a liquid outlet hole (4 b 2) which radially penetrates into the liquid inlet blind hole (4 b 1).
2. The pressure regulating valve according to claim 1, wherein the outer wall of the guide section (4 b) is provided with an annular groove (4 b 3) communicated with the liquid outlet hole (4 b 2), and the groove width of the annular groove (4 b 3) is larger than the aperture of the liquid outlet hole (4 b 2).
3. A pressure regulating valve according to claim 2, wherein said joint (2) has a pressure relief hole (2 a) extending axially therethrough.
4. A pressure regulating valve according to claim 3, wherein said joint (2) has a mounting cavity (2 b) for the upper end of the spring (3) to be inserted.
5. The pressure regulating valve according to claim 4, wherein the joint (2) is screwed with the valve body (1) by external threads, and the joint (2) is connected with the lock nut (5) by external threads.
6. The pressure regulating valve according to claim 4, wherein the joint (2) is screwed to the valve body (1) by external threads, and the valve body (1) is screwed with a screw abutting against the joint (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322508247.1U CN220850889U (en) | 2023-09-15 | 2023-09-15 | Pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322508247.1U CN220850889U (en) | 2023-09-15 | 2023-09-15 | Pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220850889U true CN220850889U (en) | 2024-04-26 |
Family
ID=90748678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322508247.1U Active CN220850889U (en) | 2023-09-15 | 2023-09-15 | Pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220850889U (en) |
-
2023
- 2023-09-15 CN CN202322508247.1U patent/CN220850889U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3749122A (en) | System for installing fluid elements in conduit circuits | |
| US3761053A (en) | High pressure valve | |
| CN202252194U (en) | Overflow valve for excavator main control valve | |
| CN220850889U (en) | Pressure regulating valve | |
| CN110671519B (en) | Tubular flow control valve | |
| CN201443451U (en) | Common-rail pressure limiting valve for common-rail fuel ejecting system of engine | |
| CN112682378A (en) | But pressure boost screw thread cartridge formula guide overflow valve | |
| CN110630758A (en) | Thickness-adjustable needle-shaped switch | |
| CN210003587U (en) | built-in pressure-reducing flow-guiding device throttle valve | |
| CN219975513U (en) | Adjusting component of overflow valve and overflow valve | |
| CN207034607U (en) | Pressure adjustable type safety valve for thin oil lubricant oil pump | |
| CN217784570U (en) | High-pressure fluid plunger hole plate improved structure capable of reducing internal leakage | |
| CN218670771U (en) | Opening pressure adjustable check valve | |
| CN215058545U (en) | Integral plug-in mounting type overflow valve | |
| CN215949979U (en) | Plug-in overflow valve and corresponding valve block | |
| CN112377652B (en) | Plug-in type split valve port internal flow type high-pressure overflow valve | |
| CN219570470U (en) | Low-noise plug-in type overflow valve for hydraulic switch machine | |
| CN213900003U (en) | Split type safety overflow valve | |
| CN210848352U (en) | Spindle and machine tool | |
| CN218152529U (en) | Direct-acting plug-in overflow valve capable of adjusting inlet angle in large range | |
| CN220168659U (en) | Hydraulic safety valve | |
| CN215172564U (en) | Ultrahigh pressure reducing valve | |
| CN219159171U (en) | Hydraulic pump control valve sleeve with optimized structure | |
| CN217814218U (en) | Adjustable direct-acting overflow valve for maintaining stable pressure of oil inlet joint | |
| CN114877003B (en) | Novel extrusion oil film damper with self-adaptive check valve in oil supply hole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |