CN221257861U - High-pressure unloading valve - Google Patents
High-pressure unloading valve Download PDFInfo
- Publication number
- CN221257861U CN221257861U CN202322951423.9U CN202322951423U CN221257861U CN 221257861 U CN221257861 U CN 221257861U CN 202322951423 U CN202322951423 U CN 202322951423U CN 221257861 U CN221257861 U CN 221257861U
- Authority
- CN
- China
- Prior art keywords
- channel portion
- valve
- wall
- sliding block
- end cover
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a high-pressure unloading valve, which is characterized by comprising the following components: the valve comprises a valve body, an adjusting end cover, a pneumatic piston, a piston rod, a sliding block, an adjusting spring, a control steel ball, a valve core and a fixed joint, wherein the valve body is provided with a containing space, the fixed joint is arranged on the valve body, the valve core is arranged on the fixed joint, a fixed outlet is formed in the valve body, the piston rod is arranged in the containing space, the pneumatic piston, the sliding block and the adjusting spring are sleeved on the piston rod, the sliding block abuts against the inner wall of the containing space, the spring abuts against the sliding block, the control steel ball is arranged on the piston rod, the adjusting end cover is arranged on the valve body, the adjusting end cover is provided with an air inlet, and the adjusting end cover is provided with an extending ring for driving the sliding block to move. Through the application of the high-pressure unloading valve, the valve core and the control steel ball avoid pressure leakage of low-viscosity fluid, the tightness of the valve is improved, high-frequency work can be performed, and the pressure of the adjusting spring is adjusted through the adjusting end cover, so that the high-pressure unloading valve is convenient and quick.
Description
Technical Field
The utility model relates to the technical field of control valves, in particular to a high-pressure unloading valve.
Background
In the fluid delivery system, the valve is an indispensable control component, mainly has the functions of adjusting, guiding, preventing backflow, stopping, splitting and the like, and the unloading valve is one type commonly used in the valve. The unloading valve is a valve capable of unloading the hydraulic pump under certain conditions. The unloading valve is usually an overflow valve with a two-position two-way valve (usually an electromagnetic valve), and is used for setting the main pressure of a system (an oil pump) when the unloading valve is not unloaded, and pressure oil directly returns to the oil tank when the unloading valve is in an unloading state (the action is switched by the two-position two-way valve), so that the pressure of the oil pump is reduced to be approximately zero, thereby realizing some loop control, prolonging the service life of the oil pump and reducing the power consumption. In the circuit, it is incorporated into the circuit. The pressure relief valve is used to regulate the pressure required by the actuator, is in series in the circuit and is generally not used interchangeably. However, the conventional unloading valve has poor impact resistance in use, cannot operate at high frequency, and is troublesome in mounting the interface.
Disclosure of utility model
In view of the above, an object of the present utility model is to provide a high-pressure unloading valve comprising:
The valve comprises a valve main body, an adjusting end cover, a pneumatic piston, a piston rod, a sliding block, an adjusting spring, a control steel ball, a valve core and a fixed joint, wherein a containing space is arranged in the valve main body, one end of the fixed joint is arranged at one end of the valve main body and stretches into one end of the containing space, the valve core is arranged at one end of the fixed joint, the other end of the fixed joint is provided with a fixed inlet, the fixed inlet is communicated with the valve core, the outer wall of the valve main body is provided with a fixed outlet, the fixed outlet is communicated with the containing space, the piston rod is slidably arranged in the containing space, the pneumatic piston, the sliding block and the adjusting spring are sleeved on the outer wall of the piston rod, the pneumatic piston, the sliding block and the adjusting spring are sequentially arranged along the length direction of the piston rod, the pneumatic piston is close to the other end of the valve main body, the outer wall of the sliding block abuts against the inner wall of the containing space, one end of the spring is blocked against one end of the sliding block, one end of the control steel ball is arranged at one end of the control steel ball, the other end of the control steel ball is arranged at one end of the outer wall of the valve main body, the air inlet is arranged at one end of the air inlet is in the threaded end of the threaded end cover, the threaded end cover is arranged at the other end of the air inlet is connected with the threaded end of the valve main body, one end of the threaded end cover is arranged at the threaded end of the end cover, and the threaded end cover is arranged at the other end of the threaded end cover, and is arranged at one end of the threaded end cover is in a threaded end cover, and is arranged, the extension ring is used for driving the sliding block to move.
In another preferred embodiment, a limiting ring is formed by extending the inner wall of the accommodating space inwards in the radial direction, the accommodating space is divided into a first channel part and a second channel part by the limiting ring, one end of the fixed connector stretches into the first channel part, the fixed outlet is communicated with the first channel part, one end of the adjusting end cover stretches into the second channel part, the outer wall of the piston rod is slidably arranged on the inner wall of the limiting ring, the pneumatic piston, the sliding block and the adjusting spring are all arranged in the second channel part, and the outer wall of the sliding block abuts against the inner wall of the second channel part.
In another preferred embodiment, the second channel portion includes a front channel portion, a middle channel portion and a rear channel portion that are sequentially communicated, the rear channel portion is disposed adjacent to the first channel portion, the middle channel portion is disposed between the front channel portion and the rear channel portion, the slider is slidably mounted in the middle channel portion, an inner diameter of the front channel portion is larger than an inner diameter of the middle channel portion, an inner diameter of the middle channel portion is larger than an inner diameter of the rear channel portion, an inner wall of the front channel portion is provided with the internal thread, and the extension ring is operatively extended into or out of the middle channel portion.
In another preferred embodiment, the length direction of the fixed outlet is extended along the radial direction of the valve body, the section of the fixed outlet along the radial direction of the valve body is arranged in a step shape, and the inner diameter of the fixed outlet is arranged in a gradually increasing manner along the direction away from the first channel part.
In another preferred embodiment, the outer wall of the adjustment end cap is provided with a roughened surface, which is arranged in the circumferential direction of the outer wall of the adjustment end cap.
By adopting the technical scheme, the utility model has the positive effects compared with the prior art that: through the application of the high-pressure unloading valve, the valve core and the control steel ball avoid pressure leakage of low-viscosity fluid, the tightness of the valve is improved, high-frequency work can be performed, and the pressure of the adjusting spring is adjusted through the adjusting end cover, so that the high-pressure unloading valve is convenient and quick.
Drawings
FIG. 1 is an overall schematic of a high pressure unloader valve of the present utility model.
In the accompanying drawings: 1. a valve body; 2. adjusting the end cover; 3. a pneumatic piston; 4. a piston rod; 5. a slide block; 6. an adjusting spring; 7. controlling the steel ball; 8. a valve core; 9. fixing the joint; 10. a fixed inlet; 11. a fixed outlet; 12. an extension ring; 13. a limiting ring; 14. a first channel portion; 15. a second channel portion; 16. a front channel portion; 17. a middle channel portion; 18. a rear channel portion; 19. an air inlet.
Detailed Description
The utility model is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
As shown in fig. 1, there is shown a high pressure relief valve of a preferred embodiment, comprising:
The valve comprises a valve body 1, an adjusting end cover 2, a pneumatic piston 3, a piston rod 4, a sliding block 5, an adjusting spring 6, a control steel ball 7, a valve core 8 and a fixed joint 9, wherein an accommodating space is formed in the valve body 1, one end of the fixed joint 9 is installed at one end of the valve body 1 and stretches into one end of the accommodating space, the valve core 8 is installed at one end of the fixed joint 9, a fixed inlet 10 is formed in the other end of the fixed joint 9, the fixed inlet 10 is communicated with the valve core 8, a fixed outlet 11 is formed in the outer wall of the valve body 1, the fixed outlet 11 is communicated with the accommodating space, the piston rod 4 is slidably installed in the accommodating space, the pneumatic piston 3, the sliding block 5 and the adjusting spring 6 are sleeved on the outer wall of the piston rod 4 in sequence, the pneumatic piston 3, the sliding block 5 and the adjusting spring 6 are sequentially arranged along the length direction of the piston rod 4, one end of the pneumatic piston 3 is close to the other end of the valve body 1, the outer wall of the sliding block 5 is propped against the inner wall of the accommodating space, one end of the spring is propped against one end of the sliding block 5, the control steel ball 7 is installed at one end of the piston rod 4, the control steel ball 7 is operatively opened or closed, one end of the valve core 8 is communicated with the valve core 8, one end of the other end of the adjusting end 2 is installed at the other end of the valve body 1 and stretches into the accommodating space, one end of the air inlet 2 is provided with an air inlet 12, one end of the other end of the adjusting ring 2 is in threaded end cover 2 is connected with the other end of the adjusting end 2, and extends to the end of the end cover 2, and has an end 12, and extends to extend to the end of the end of the end 2, and is provided with an end cap 2.
In the actual use process, the pneumatic piston 3 is pushed by the air pressure generated by the air supply device, and then the piston rod 4 is driven to move, so that the piston rod 4 pushes the control steel ball 7 to control the opening and closing of the valve core 8 by extruding the adjusting spring 6, and the valve core 8 is connected with the fixed inlet 10 to control the opening and closing of the fixed inlet 10, so that the opening and closing of the fixed outlet 11 are indirectly controlled, and the valve switch is realized, so that the high-pressure unloading is realized, and in the use process, the piston rod 4 is subjected to the acting force generated when the adjusting spring 6 is compressed and the action of high-pressure fluid on the piston rod 4, the two forces keep the piston rod 4 balanced, the compression degree of the adjusting spring 6 is controlled by screwing the adjusting end cover 2, so that the piston rod 4 is in a balanced state, and the pressure is adjusted.
Further, as a preferred embodiment, a limiting ring 13 is formed by extending the inner wall of the accommodating space inwards in the radial direction, the accommodating space is divided into a first channel portion 14 and a second channel portion 15 by the limiting ring 13, one end of the fixed connector 9 extends into the first channel portion 14, the fixed outlet 11 is communicated with the first channel portion 14, one end of the adjusting end cover 2 extends into the second channel portion 15, the outer wall of the piston rod 4 is slidably arranged on the inner wall of the limiting ring 13, the pneumatic piston 3, the sliding block 5 and the adjusting spring 6 are all arranged in the second channel portion 15, and the outer wall of the sliding block 5 abuts against the inner wall of the second channel portion 15.
Further, as a preferred embodiment, the second channel portion 15 includes a front channel portion 16, a middle channel portion 17 and a rear channel portion 18 which are sequentially communicated, the rear channel portion 18 is disposed adjacent to the first channel portion 14, the middle channel portion 17 is disposed between the front channel portion 16 and the rear channel portion 18, the slider 5 is slidably mounted in the middle channel portion 17, the inner diameter of the front channel portion 16 is larger than the inner diameter of the middle channel portion 17, the inner diameter of the middle channel portion 17 is larger than the inner diameter of the rear channel portion 18, the inner wall of the front channel portion 16 is provided with an internal thread, and the extension ring 12 is operatively extended into or separated from the middle channel portion 17.
Further, as a preferred embodiment, the fixed outlet 11 is provided so as to extend in the longitudinal direction of the valve body 1, the fixed outlet 11 is provided so as to have a stepped cross section in the radial direction of the valve body 1, and the inner diameter of the fixed outlet 11 is provided so as to be gradually increased in a direction away from the first passage portion 14. Further, the cross section of the fixed outlet 11 is arranged in a stepped manner so as to be suitable for different connectors.
Further, as a preferred embodiment, the outer wall of the adjustment end cap 2 is provided with a roughened surface, the roughened surface being provided along the circumferential direction of the outer wall of the adjustment end cap 2. Further, the roughened surface of the adjustment end cap 2 facilitates screwing the adjustment end cap 2.
The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the scope of the utility model, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present utility model, and are intended to be included within the scope of the present utility model.
Claims (5)
1. A high pressure unloader valve comprising:
The valve comprises a valve main body, an adjusting end cover, a pneumatic piston, a piston rod, a sliding block, an adjusting spring, a control steel ball, a valve core and a fixed joint, wherein a containing space is arranged in the valve main body, one end of the fixed joint is arranged at one end of the valve main body and stretches into one end of the containing space, the valve core is arranged at one end of the fixed joint, the other end of the fixed joint is provided with a fixed inlet, the fixed inlet is communicated with the valve core, the outer wall of the valve main body is provided with a fixed outlet, the fixed outlet is communicated with the containing space, the piston rod is slidably arranged in the containing space, the pneumatic piston, the sliding block and the adjusting spring are sleeved on the outer wall of the piston rod, the pneumatic piston, the sliding block and the adjusting spring are sequentially arranged along the length direction of the piston rod, the pneumatic piston is close to the other end of the valve main body, the outer wall of the sliding block abuts against the inner wall of the containing space, one end of the spring is blocked against one end of the sliding block, one end of the control steel ball is arranged at one end of the control steel ball, the other end of the control steel ball is arranged at one end of the outer wall of the valve main body, the air inlet is arranged at one end of the air inlet is in the threaded end of the threaded end cover, the threaded end cover is arranged at the other end of the air inlet is connected with the threaded end of the valve main body, one end of the threaded end cover is arranged at the threaded end of the end cover, and the threaded end cover is arranged at the other end of the threaded end cover, and is arranged at one end of the threaded end cover is in a threaded end cover, and is arranged, the extension ring is used for driving the sliding block to move.
2. The high-pressure unloading valve according to claim 1, wherein a limiting ring is formed on the inner wall of the accommodating space in a radially inward extending manner, the accommodating space is divided into a first channel portion and a second channel portion by the limiting ring, one end of the fixed connector extends into the first channel portion, the fixed outlet is communicated with the first channel portion, one end of the adjusting end cover extends into the second channel portion, the outer wall of the piston rod is slidably arranged on the inner wall of the limiting ring, the pneumatic piston, the sliding block and the adjusting spring are all arranged in the second channel portion, and the outer wall of the sliding block abuts against the inner wall of the second channel portion.
3. The high pressure unloader valve of claim 2, wherein the second channel portion includes a front channel portion, a middle channel portion, and a rear channel portion that are sequentially communicated, the rear channel portion is disposed proximate to the first channel portion, the middle channel portion is disposed between the front channel portion and the rear channel portion, the slider is slidably mounted within the middle channel portion, an inner diameter of the front channel portion is greater than an inner diameter of the middle channel portion, an inner diameter of the middle channel portion is greater than an inner diameter of the rear channel portion, an inner wall of the front channel portion is provided with the internal threads, and the extension ring is operable to extend into or out of the middle channel portion.
4. The high-pressure unloading valve according to claim 1, wherein a length direction of the fixed outlet is arranged along a radial extension of the valve body, a section of the fixed outlet along the radial direction of the valve body is arranged in a stepwise manner, and an inner diameter of the fixed outlet is arranged in a gradually increasing manner in a direction away from the first passage portion.
5. The high pressure unloader valve of claim 1, wherein the outer wall of the regulator end cap is provided with a roughened surface disposed circumferentially of the outer wall of the regulator end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322951423.9U CN221257861U (en) | 2023-11-01 | 2023-11-01 | High-pressure unloading valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322951423.9U CN221257861U (en) | 2023-11-01 | 2023-11-01 | High-pressure unloading valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221257861U true CN221257861U (en) | 2024-07-02 |
Family
ID=91661273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322951423.9U Active CN221257861U (en) | 2023-11-01 | 2023-11-01 | High-pressure unloading valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221257861U (en) |
-
2023
- 2023-11-01 CN CN202322951423.9U patent/CN221257861U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN221257861U (en) | High-pressure unloading valve | |
| CN212272696U (en) | Electro-hydraulic valve reversing anti-impact structure | |
| CN110425114B (en) | Compressor and refrigeration equipment with same | |
| CN111005906A (en) | Ultrahigh-pressure large-flow high-water-base unloading valve | |
| CN111608836B (en) | Electric control booster pump | |
| CN214118617U (en) | Variable pump control valve | |
| CN211474564U (en) | Damping type safety overflow valve capable of self-aligning | |
| CN111306123B (en) | Damping type safety overflow valve capable of self-aligning | |
| CN111608835B (en) | Gas-liquid double-control booster pump | |
| CN207555179U (en) | Relief valve and the gear pump for including it | |
| EP2466174B1 (en) | A safety valve | |
| CN218509837U (en) | Hydraulic unloading valve | |
| CN201396497Y (en) | Valve device used for gas | |
| CN216788683U (en) | Reciprocating type dephosphorization pump hydraulic end with internal circulation function | |
| CN220353990U (en) | Power control valve and hydraulic pump | |
| CN218913875U (en) | Pressure relief valve for overpressure protection of hydraulic system | |
| CN219413662U (en) | Pressure valve | |
| CN214464795U (en) | Compressor clearance cylinder | |
| CN219953794U (en) | Screw thread cartridge formula return circuit flushing valve | |
| CN220319790U (en) | Oil pressure peak limiting device for diaphragm compressor and diaphragm compressor | |
| CN220168659U (en) | Hydraulic safety valve | |
| CN220930282U (en) | High-pressure regulating valve device | |
| CN210687136U (en) | Automatic discharge valve capable of slowly reducing pressure | |
| CN213809051U (en) | External high-pressure safety valve | |
| CN214464830U (en) | Compressor clearance adjustment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |