CN201751598U - Arbitrary adjusted control valve - Google Patents
Arbitrary adjusted control valve Download PDFInfo
- Publication number
- CN201751598U CN201751598U CN2010202468865U CN201020246886U CN201751598U CN 201751598 U CN201751598 U CN 201751598U CN 2010202468865 U CN2010202468865 U CN 2010202468865U CN 201020246886 U CN201020246886 U CN 201020246886U CN 201751598 U CN201751598 U CN 201751598U
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- Prior art keywords
- air
- air chamber
- valve
- inlet cavity
- relief piston
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- Expired - Fee Related
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Abstract
An arbitrary adjusted control valve comprises a valve body and a valve core, wherein a gas chamber is arranged in the valve body and comprises a transfer gas chamber and a work gas chamber which are cooperated with each other along the vertical direction; a gas inlet pressure-adjustment mechanism is arranged at one side of the valve body and the adjusted gas enters into the transfer gas chamber to effectively control the pressure of the work gas chamber by cooperating with an operation handle and the hydraulic oil path is controlled by the control mechanism, thus the valve is more flexibly and conveniently used and the ascending, falling operation speed can be adjusted and the oil path is prevented from being damaged due to over-quick oil supply of the oil path. The arbitrary adjusted control valve has features of excellent sealing performance, stable operation, safe use and low fault incidence rate.
Description
Technical field
The utility model relates to a kind of one control air valve, particularly a kind ofly utilizes the pneumatic control valve that comes controlled hydraulic system.
Background technique
One control air valve be in, the important control element of heavy-duty tipper hydraulic system, its working principle is to regulate the turnover oil mass of control hydraulic pressure fuel tap by draught damper, so realize dumping car lifting, decline and in function such as stop.In the prior art, because the flow of air valve output pressure is fixing non-adjustable, thereby the dumping car hydraulic system can only realize at the uniform velocity ascending, descending, and driver's operation is had relatively high expectations, and is not easy to control.In the practical application, operation for convenience, need realize lifting control by means of fall slowly piston and droop adjustment screw in the hydraulic lifting system, this kind mode, functional unit is many, causes fault and inefficiency easily, influence project progress, thereby need the pneumatic control mechanism of existing dumping car hydraulic system be improved.
The model utility content
The utility model overcomes the defective of above-mentioned prior art and a kind of one control air valve that can regulate the turnover oil mass arbitrarily is provided.
The alleged problem of the utility model is solved by following technological scheme:
A kind of one control air valve that can regulate arbitrarily, comprise valve body and spool, be provided with air chamber in the described valve body, described air chamber comprises transmission air chamber and the work air chamber that cooperates up and down, described valve body one side is provided with the air inlet pressure-regulating device, and the air-inlet cavity of described air inlet pressure-regulating device is communicated with the transmission air inlet of air chamber.
The above-mentioned one control air valve that can regulate arbitrarily, described air-inlet cavity are provided with first air-inlet cavity and second air-inlet cavity that cooperates up and down, and described first air-inlet cavity is communicated with source of the gas by inlet hole; In second air-inlet cavity relief piston is set, second air-inlet cavity is communicated with the transmission air chamber by suction port.
The above-mentioned one control air valve that can regulate arbitrarily, described relief piston cooperates by O-ring seal with air cavity, the relief piston downside is provided with outside annular boss, and the push rod of boss lower end holds out against with the rubber pad of sealing valve plug, between rubber pad and lower plug cover Packing spring is set; Establish outer Returnning spring on the push rod of described relief piston outside, lower end, outer Returnning spring and rubber pad hold out against, described relief piston inner hollow, and the interior Returnning spring in the relief piston and the cam on relief piston top join.
The above-mentioned one control air valve that can regulate arbitrarily, described air chamber cavity bottom is provided with lower plug cover, and the lower plug cover top is provided with the spool of sealing top press fit with it, and wherein, valve core inside is provided with downward endoporus, and endoporus communicates with vent hole.
The above-mentioned one control air valve that can regulate arbitrarily, described transmission air chamber comprises first air chamber and second air chamber, the work air chamber comprises the 3rd air chamber and the 4th air chamber, wherein, first air chamber and the 3rd air chamber cooperate, and second air chamber and the 4th air chamber cooperate, and described the 3rd air chamber and the 4th air chamber are provided with the work pore.
The utility model utilizes relief piston to regulate bleed pressure, gas through regulating enters the transmission air chamber, cooperate with operating grip then, the effective pressure of Control work air chamber, realize hydraulic circuit control by control mechanism, use more flexiblely, realize that service speed such as ascending, descending is adjustable; Avoid effectively that the oil circuit fuel feeding is too fast to cause damage to oil circuit, the utility model one control air valve sealability excellence, stable operation, safe in utilization, rate of breakdown is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an air chamber structure schematic representation of the present utility model;
Fig. 3 is a pressure regulator valve plug structure schematic representation of the present utility model.
The label of each parts is expressed as follows among the figure: 1. valve body; 2. spool; 3. relief piston; 4. inlet hole; 5. vent hole; 5-1. piston vent hole; 6. first air-inlet cavity; 7. second air-inlet cavity; 8.O RunddichtringO; 9. Packing spring; 10. rubber pad; 11. O-ring seal; 12. Returnning spring; 13. suction port; 14. push rod; 15. lower plug cover; 16. outer Returnning spring; 17. cam; 18. work pore; 19. first air chamber; 20. second air chamber; 21. the 3rd air chamber; 22. the 4th air chamber.
Embodiment
Referring to Fig. 1, the utility model comprises valve body 1, establish spool 2 in the valve pocket of valve body, be provided with air chamber in the described valve body, after the improvement, in valve body one side the air inlet pressure-regulating device is set, the air-inlet cavity of described air inlet pressure-regulating device is communicated with air inlet of air chamber 13, the inlet hole 4 and the vent hole 5 of air-inlet cavity are communicated with air chamber respectively, and relief piston 3 is set in the air-inlet cavity.Described air-inlet cavity is provided with first air-inlet cavity 6 and second air-inlet cavity 7 that is communicated with up and down, and wherein, first air-inlet cavity is communicated with source of the gas by inlet hole; In second air-inlet cavity relief piston is set, second air-inlet cavity is communicated with the transmission air chamber by the suction port 13 of air chamber, and described valve core inside is provided with downward endoporus, the boss suit Returnning spring 12 of endoporus outside, and the endoporus of described valve core inside communicates with vent hole 5.
Referring to Fig. 2, described relief piston outer lower side is provided with outside annular boss, in the groove in the middle of the boss O-ring seal 11 is set, the push rod 14 and the rubber pad 10 of relief piston bottom hold out against, between rubber pad and lower plug cover 15, Packing spring 9 is set, between lower plug cover and the air chamber body O RunddichtringO 8 is set.Establish outer Returnning spring 16 on the push rod of described relief piston outside, lower end, outer Returnning spring and rubber pad hold out against, piston vent hole 5-1 relief piston inner hollow is set on the described relief piston, and the interior Returnning spring of its inside and the cam 17 on relief piston top join.
In the present embodiment, be respectively equipped with first air chamber 19, second air chamber 20 and the 3rd air chamber 21, the 4th air chamber 22 that cooperatively interact in two chambers arranged side by side of valve body; Described first air chamber and the 3rd air chamber are for transmitting air chamber, and second air chamber and the 4th air chamber are the work air chamber.In the practical application, source of the gas enters first air-inlet cavity of pressure-regulating device by inlet hole, relief piston moves downward when top cam presses down, rubber pad between first and second air-inlet cavitys is pushed open, make the pressurized gas of the air chamber of winning enter second air-inlet cavity, pressurized gas has a thrust that makes progress to regulating piston; When the elastic force of Returnning spring outside the thrust of gas and the top reaches balance, make rubber pad return to original position, the pressure of the gas of second air-inlet cavity equals the pressure of top jaw to regulating piston, the gas pressure of second air-inlet cavity can be adjusted, at this moment, because the first, the 3rd air chamber gas source is second air-inlet cavity, when valve plug is in running order, the operating air pressure can regulate of the second, the 4th air chamber that is connected with the first, the 3rd air chamber respectively.And then regulate operating air pressure in conjunction with control mechanism by spool and cam, operating air pressure is realized the lifting of dumping car, the adjusting of rate of descent by the turnover oil mass of work pore 18 control hydrovalves.
Claims (5)
1. the one control air valve that can regulate arbitrarily comprises valve body (1) and spool (2), is provided with air chamber in the described valve body, and described air chamber comprises transmission air chamber and the work air chamber that cooperates up and down, it is characterized in that; Described valve body one side is provided with the air inlet pressure-regulating device, and the air-inlet cavity of described air inlet pressure-regulating device is communicated with the transmission air inlet of air chamber.
2. the one control air valve that can regulate arbitrarily according to claim 1 is characterized in that; Described air-inlet cavity is provided with first air-inlet cavity (6) and second air-inlet cavity (7) that cooperates up and down, and described first air-inlet cavity is communicated with source of the gas by inlet hole (4); In second air-inlet cavity relief piston is set, second air-inlet cavity is communicated with the transmission air chamber by suction port (13).
3. the one control air valve that can regulate arbitrarily according to claim 2 is characterized in that; Described relief piston cooperates by O-ring seal (11) with air cavity, the relief piston downside is provided with outside annular boss, the push rod of boss lower end (14) holds out against with the rubber pad (10) of sealing valve plug (8), between rubber pad and lower plug cover (15) Packing spring (9) is set; Establish outer Returnning spring (16) on the push rod of described relief piston outside, lower end, outer Returnning spring and rubber pad hold out against, described relief piston inner hollow, and the interior Returnning spring in the relief piston and the cam (17) on relief piston top join.
4. the one control air valve that can regulate arbitrarily according to claim 3 is characterized in that; Described air chamber cavity bottom is provided with lower plug cover, and the lower plug cover top is provided with the spool of sealing top press fit with it, and wherein, valve core inside is provided with downward endoporus, and endoporus communicates with vent hole (5).
5. the one control air valve that can regulate arbitrarily according to claim 4 is characterized in that; Described transmission air chamber comprises first air chamber (19) and second air chamber (20), the work air chamber comprises the 3rd air chamber (21) and the 4th air chamber (22), and wherein, first air chamber and the 3rd air chamber cooperate, second air chamber and the 4th air chamber cooperate, and described the 3rd air chamber and the 4th air chamber are provided with work pore (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202468865U CN201751598U (en) | 2010-07-05 | 2010-07-05 | Arbitrary adjusted control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202468865U CN201751598U (en) | 2010-07-05 | 2010-07-05 | Arbitrary adjusted control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201751598U true CN201751598U (en) | 2011-02-23 |
Family
ID=43602005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202468865U Expired - Fee Related CN201751598U (en) | 2010-07-05 | 2010-07-05 | Arbitrary adjusted control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201751598U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864461A (en) * | 2016-05-22 | 2016-08-17 | 河北睿智辰诚液压机械科技有限公司 | Improved slow-down control air valve |
| CN110375095A (en) * | 2019-08-15 | 2019-10-25 | 武汉福龙自动控制阀门有限公司 | A kind of pneumatic overload shut-off valve |
-
2010
- 2010-07-05 CN CN2010202468865U patent/CN201751598U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864461A (en) * | 2016-05-22 | 2016-08-17 | 河北睿智辰诚液压机械科技有限公司 | Improved slow-down control air valve |
| CN110375095A (en) * | 2019-08-15 | 2019-10-25 | 武汉福龙自动控制阀门有限公司 | A kind of pneumatic overload shut-off valve |
| CN110375095B (en) * | 2019-08-15 | 2024-04-30 | 武汉福龙自动控制阀门有限公司 | Pneumatic overload stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110223 Termination date: 20120705 |