CN220539998U - Pneumatic control device of hydraulic valve - Google Patents
Pneumatic control device of hydraulic valve Download PDFInfo
- Publication number
- CN220539998U CN220539998U CN202321812666.8U CN202321812666U CN220539998U CN 220539998 U CN220539998 U CN 220539998U CN 202321812666 U CN202321812666 U CN 202321812666U CN 220539998 U CN220539998 U CN 220539998U
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- valve
- hole
- hydraulic valve
- pneumatic
- control device
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- 238000007789 sealing Methods 0.000 abstract description 20
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a pneumatic control device for a hydraulic valve, which comprises a cylinder body, wherein a pneumatic component is arranged in the cylinder body, a valve block push rod of the hydraulic valve is arranged at the bottom of the pneumatic component, a top cover is fixedly connected to the top of the cylinder body through a locking bolt, a flow dividing component which enables a subsequent component to evenly flow through slowing down high-speed gas flow is arranged at the top of the top cover, the flow dividing component comprises a fixed head, an air hole is formed in the top cover, the fixed head is connected in a sliding manner in the air hole, a flow dividing plate is fixedly connected in the fixed head, during the use process, the non-centering distribution of the flow dividing hole reduces the gas flow velocity, so that the hydraulic valve and the pneumatic component are protected, a sealing ball is used for replacing a sealing ring, the abrasion of a sealing device caused by the movement of a sliding block is reduced, meanwhile, the air pressure in the device is reduced, the sealing requirement of the device is reduced, the maintenance cost is reduced, the service life of the device is prolonged, and the practicability is increased.
Description
Technical Field
The utility model relates to the field of hydraulic control, in particular to a hydraulic valve pneumatic control device.
Background
The hydraulic directional control valve is a directional control valve that changes the direction of fluid flow by controlling the pressure of a fluid to push a spool. The number of channels accommodated by the directional control valve can be divided into two-way, three-way, four-way and five-way channels. By utilizing the absolute movement of the spool and the valve body, the oil passage can be communicated, closed or the direction of the oil flow can be changed, so that the hydraulic actuator and the driving mechanism thereof can move, end or change the movement direction. Compared with the common electric control valve of the pneumatic control valve, the pneumatic control valve has potential safety hazards.
Through retrieving, chinese patent publication No. CN217055752U, a pneumatic control mechanism of hydraulic valve, relates to the hydraulic control field, including a cylinder body, sliding fit has the cylinder piston in the cylinder body, the cylinder piston is connected with hydraulic valve's case push rod, cylinder body tip is equipped with the air pipe joint, the cylinder piston drives the case push rod and removes. However, when the device is used, the frequent sliding friction loss at the sealing part of the sealing ring is serious, and the high-speed gas converged at the air pipe joint can lead the subsequent pneumatic components to bear larger force, so that the service life of the device is greatly reduced; after the use, because the air pressure in the cylinder body is higher, the gas backflow is inevitably generated, the requirement of the device on the tightness is further improved, the maintenance cost is increased, and the practicability of the device is reduced.
Disclosure of Invention
The utility model aims to solve the problems and provide a hydraulic valve pneumatic control device.
The utility model realizes the above purpose through the following technical scheme:
the utility model provides a pneumatic control device of hydraulic valve, includes the cylinder body, be provided with pneumatic subassembly in the cylinder body, pneumatic subassembly bottom is provided with the valve piece push rod of hydraulic valve, cylinder body top is through locking bolt fixedly connected with top cap, and the top cap top is provided with the reposition of redundant personnel subassembly that makes the even windward of follow-up component through slowing down high-speed gas flow.
Preferably, the flow dividing assembly comprises a fixed head, an air hole is formed in the top cover, the fixed head is connected in a sliding mode in the air hole, a flow dividing plate is fixedly connected in the fixed head, and at least two non-centered flow dividing holes are formed in the flow dividing plate.
Preferably, the pneumatic assembly comprises a sliding block, a cavity is arranged in the cylinder body, the sliding block is connected in the cavity in a sliding manner, a sealing ball is embedded at the top of the sliding block, the shape of the bottom of an air hole is matched with that of the sealing ball, a spring is directly arranged at the bottom of the sliding block and the bottom of the cavity, a sliding rod is fixedly connected at the bottom of the sliding block, a valve block push rod of a hydraulic valve is arranged at the bottom of the sliding rod, and a limiting hole is formed in the bottom of the cavity in a sliding manner, and the sliding rod is connected in the limiting hole in a sliding manner.
Preferably, the hydraulic valve comprises a valve body, a guide hole is formed in the bottom of the limit hole, the valve block push rod is connected in the guide hole in a sliding manner, the valve block push rod is connected in the valve body in a sliding manner, a valve block is arranged on the valve block push rod, a first through hole is formed in the bottom of the valve body, and a second through hole is formed in the upper side of the valve body.
Preferably, the pneumatic assembly components are in non-intimate contact with the cylinder.
Preferably, the spring is in a free extension state, and the second through hole is positioned in the valve body, and the inner opening of the valve body is just blocked by the valve block.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the non-centered distribution of the diversion holes reduces the gas flow rate, so that the hydraulic valve and the pneumatic assembly are protected, and the service life of the device is prolonged.
2. According to the utility model, the sealing ball is used for replacing the sealing ring, so that the abrasion of the sliding block on the sealing device is reduced to the greatest extent, meanwhile, the air pressure in the device in the using process is reduced, the sealing performance requirement of the device is reduced, the maintenance cost is reduced, and the practicability is increased.
Additional features and advantages of the utility model will be set forth in the description which follows, or may be learned by practice of the utility model.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:
FIG. 1 is a front cross-sectional view of a hydraulic valve pneumatic control device according to the present utility model;
FIG. 2 is a perspective view of a hydraulic valve pneumatic control device according to the present utility model;
FIG. 3 is a perspective view of the internal pneumatic components of a hydraulic valve pneumatic control device according to the present utility model;
fig. 4 is a front cross-sectional view of a hydraulic valve at the bottom of a hydraulic valve pneumatic control device according to the present utility model.
The reference numerals are explained as follows: 1. a cylinder; 101. a cavity; 102. a limiting hole; 103. a guide hole; 2. a pneumatic assembly; 201. a slide block; 202. a sealing ball; 203. a spring; 204. a slide bar; 3. a hydraulic valve; 301. a valve block push rod; 302. a valve body; 303. a valve block; 304. a first through hole; 305. a second through hole; 5. a shunt assembly; 501. a fixed head; 502. a diverter plate; 503. a diversion aperture; 6. a top cover; 7. and (5) air holes.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The utility model is further described below with reference to the accompanying drawings:
examples
As shown in fig. 1-4, a hydraulic valve pneumatic control device comprises a cylinder body 1, wherein a pneumatic component 2 is arranged in the cylinder body 1, a valve block push rod 301 of a hydraulic valve 3 is arranged at the bottom of the pneumatic component 2, a top cover 6 is welded at the top of the cylinder body 1 through a locking bolt, and a diversion component 5 which enables subsequent components to evenly flow through slowing down high-speed gas flow is arranged at the top of the top cover 6.
In this embodiment, the flow distribution assembly 5 includes a fixed head 501, an air hole 7 is formed in the top cover 6, the fixed head 501 is slidably connected in the air hole 7, a flow distribution plate 502 is welded in the fixed head 501, at least two non-centered flow distribution holes 503 are formed in the flow distribution plate 502, and by arranging the flow distribution assembly 5, the non-centered distribution of the flow distribution holes 503 reduces the gas flow velocity, so that the hydraulic valve 3 and the pneumatic assembly 2 are protected, and the service life of the device is prolonged.
In this embodiment, the pneumatic assembly 2 includes the slider 201, be equipped with the cavity 101 in the cylinder body 1, sliding connection has the slider 201 in the cavity 101, the sealing ball 202 has been inlayed at slider 201 top, the shape of gas pocket 7 bottom cooperatees with sealing ball 202, slider 201 and cavity 101 bottom are provided with spring 203 directly, slider 201 bottom welding has slide bar 204, the slide bar 204 bottom is provided with the valve block push rod 301 of hydraulic valve 3, spacing hole 102 has been seted up to cavity 101 bottom, sliding connection has slide bar 204 in spacing hole 102, use sealing ball 202 to replace the sealing washer, the wearing and tearing of slider 201 motion to sealing device have been reduced to the maximum extent, reduce maintenance cost, increase the practicality.
In this embodiment, the hydraulic valve 3 includes a valve body 302, a guide hole 103 is provided at the bottom of the limiting hole 102, a valve block push rod 301 is slidably connected in the guide hole 103, a valve block push rod 301 is slidably connected in the valve body 302, a valve block 303 is provided on the valve block push rod 301, a first through hole 304 is provided at the bottom of the valve body 302, and a second through hole 305 is provided at the upper side of the valve body 302.
In this embodiment, the components of the pneumatic assembly 2 are in non-tight contact with the cylinder 1, and in use, the gas in the device is released along the gap, thereby reducing the gas pressure in the device and reducing the sealing requirement of the device.
In this embodiment, the spring 203 is in a free extended state, and the second through hole 305 is located in the valve body 302, and the opening is just blocked by the valve block 303.
Working principle: after the air pipe is fixed by the fixing head 501, when the air pipe blows air into the cylinder body 1, the high-speed air flow passes through the diversion assembly 5, the non-centered distribution of the diversion holes 503 reduces the air flow rate, so that the hydraulic valve 3 and the pneumatic assembly 2 are protected, the air flow pushes away the sealing ball 202 tightly attached to the bottom of the air hole 7, the sliding block 201 moves along the cavity 101 to drive the valve block push rod 301 to move downwards, the valve block push rod 301 drives the valve block 303 to move so as not to close the second through hole 305, and the first through hole 304 is communicated with the second through hole 305; when the blowing of the air into the cylinder body 1 is stopped, the sliding block 201 is reset under the action of the elastic force of the spring 203, the valve block push rod 301 is reset at the same time, and the valve block 303 is used for plugging the second through hole 305 again.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and their equivalents.
Claims (6)
1. The hydraulic valve pneumatic control device comprises a cylinder body (1), and is characterized in that: the novel pneumatic cylinder is characterized in that a pneumatic assembly (2) is arranged in the cylinder body (1), a valve block push rod (301) of a hydraulic valve (3) is arranged at the bottom of the pneumatic assembly (2), a top cover (6) is fixedly connected to the top of the cylinder body (1) through a locking bolt, and a flow dividing assembly (5) which enables subsequent components to evenly flow through slowing down high-speed gas flow is arranged at the top of the top cover (6).
2. A hydraulic valve pneumatic control device as claimed in claim 1, wherein: the flow distribution assembly (5) comprises a fixed head (501), an air hole (7) is formed in the top cover (6), the fixed head (501) is connected in a sliding mode in the air hole (7), a flow distribution plate (502) is fixedly connected in the fixed head (501), and at least two non-centered flow distribution holes (503) are formed in the flow distribution plate (502).
3. A hydraulic valve pneumatic control device as claimed in claim 2, wherein: pneumatic component (2) are including slider (201), be equipped with cavity (101) in cylinder body (1), sliding connection has in cavity (101) slider (201), slider (201) top has inlayed sealed ball (202), gas pocket (7) bottom shape with sealed ball (202) cooperate, slider (201) are provided with spring (203) with cavity (101) bottom directness, slider (201) bottom fixedly connected with slide bar (204), slide bar (204) bottom is provided with valve piece push rod (301) of hydrovalve (3), spacing hole (102) have been seted up to cavity (101) bottom, sliding connection has slide bar (204) in spacing hole (102).
4. A hydraulic valve pneumatic control device as claimed in claim 3, wherein: the hydraulic valve (3) comprises a valve body (302), a guide hole (103) is formed in the bottom of the limiting hole (102), the valve block push rod (301) is connected in a sliding mode in the guide hole (103), the valve block push rod (301) is connected in a sliding mode in the valve body (302), a valve block (303) is arranged on the valve block push rod (301), a first through hole (304) is formed in the bottom of the valve body (302), and a second through hole (305) is formed in the upper side of the valve body (302).
5. A hydraulic valve pneumatic control device as claimed in claim 1, wherein: the components of the pneumatic assembly (2) are in non-tight contact with the cylinder body (1).
6. The hydraulic valve pneumatic control device of claim 4, wherein: the spring (203) is in a free extension state, and the second through hole (305) is positioned in the inner opening of the valve body (302) and is just plugged by the valve block (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321812666.8U CN220539998U (en) | 2023-07-11 | 2023-07-11 | Pneumatic control device of hydraulic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321812666.8U CN220539998U (en) | 2023-07-11 | 2023-07-11 | Pneumatic control device of hydraulic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220539998U true CN220539998U (en) | 2024-02-27 |
Family
ID=89966752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321812666.8U Active CN220539998U (en) | 2023-07-11 | 2023-07-11 | Pneumatic control device of hydraulic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220539998U (en) |
-
2023
- 2023-07-11 CN CN202321812666.8U patent/CN220539998U/en active Active
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