CN203272305U - Efficient hydraulic drive check valve - Google Patents
Efficient hydraulic drive check valve Download PDFInfo
- Publication number
- CN203272305U CN203272305U CN 201320258958 CN201320258958U CN203272305U CN 203272305 U CN203272305 U CN 203272305U CN 201320258958 CN201320258958 CN 201320258958 CN 201320258958 U CN201320258958 U CN 201320258958U CN 203272305 U CN203272305 U CN 203272305U
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- passageway
- valve body
- valve
- efficient hydraulic
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Abstract
The utility model provides an efficient hydraulic drive check valve. The efficient hydraulic drive check valve comprises a valve body, wherein an oil inlet and an oil outlet are formed in the valve body. A P1 passageway, a P2 passageway and a P3 passageway are formed in the valve body, the P1 passageway is arranged in the oil inlet, the P2 passageway is arranged in the oil outlet, a first connecting passageway is arranged in the junction of the P1 passageway and the P2 passageway, a guiding hole is formed in a position, corresponding to the first connecting passageway, on the valve body, a valve core is arranged in the guiding hole, a valve core return spring is arranged in the valve core, one end of the valve core return spring is connected with the valve core, the other end of the valve core return spring is fixedly connected with the valve body, one end of the P1 passageway is communicated with one end of the P3 passageway, the other end of the P1 passageway is in transition connection with the other end of the P3 passageway through a second connecting passageway, and a piston which pushes the valve core to move is arranged on the second connecting passageway. The efficient hydraulic drive check valve is reasonable in design, simple in structure, convenient to operate and good in work effect.
Description
Technical field
The utility model relates to Hydraulic Field, is specifically related to efficient hydraulic one-way valve.
Background technique
Pilot operated check valve is to rely on to control hydrodynamic pressure, can make the valve of one-way valve reverse circulated, this valve occupies than consequence in the hydraulic prop equipment of coal mine machinery, Pilot operated check valve and the common one-way valve difference oil circuit control that has been many, when oil circuit control access failure pressure oil liquid, Pilot operated check valve is worked just as common one-way valve, pressure oil only flows to oil outlet from filler opening, can not reverse flow, when the input of oil circuit control oil pilot pressure, piston mandril moves under the pressure oil effect, back down one-way valve with push rod, oil inlet and outlet is connected, if oil outlet just can make the fluid reverse flow greater than filler opening.One-way valve structures of the prior art is complicated, it is reasonable not to design, make trouble, working effect is not good, because the shortcoming of above-mentioned instrument, it does not reach perfection inventor's thoughts, then exhaust the concentrated research of its intelligence and overcome, be engaged in this industry working experience for many years with it, and then develop efficient hydraulic one-way valve, utilize simple design, can make the utility model reach the effect of easy to operate and efficient operation.
Summary of the invention
Technical problem to be solved in the utility model is to provide efficient hydraulic one-way valve, and is reasonable in design, simple in structure, easy to operate, good working effect.
for solving above-mentioned existing technical problem, the utility model adopts following scheme: efficient hydraulic one-way valve, comprise valve body, described valve body is provided with filler opening and oil outlet, be provided with the P1 passage in described valve body, P2 passage and P3 passage, described P1 channel setting is at filler opening, described P2 channel setting is at oil outlet, described P1 passage and P2 passage intersection are provided with the first connecting passage, valve body corresponding to described the first connecting passage is provided with pilot hole, be provided with spool in described pilot hole, be provided with valve core reseting spring in described spool, one end of described valve core reseting spring is connected with spool, the other end is fixedly connected with valve body, described P1 passage is communicated with setting with P3 passage one end, the other end connects by the second connecting passage transition, described the second connecting passage is provided with and promotes the piston that spool moves.
As preferably, described the second connecting passage comprise taper mouth and with the piston-shaped piston limit passage that is complementary.By adopting this set, can position and position-limiting action to piston good working effect in work.
As preferably, described the first connecting passage and the second connecting passage are communicated with and arrange.By adopting this set, reasonable in design, simple in structure, good working effect.
Beneficial effect:
The utility model adopts technique scheme that efficient hydraulic one-way valve is provided, and has made up the deficiencies in the prior art, has improved working efficiency, has improved economic benefit, and is reasonable in design, simple in structure, easy to operate, good working effect.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
as shown in Figure 1, efficient hydraulic one-way valve, comprise valve body 1, described valve body 1 is provided with filler opening 2 and oil outlet 3, be provided with P1 passage 4 in described valve body 1, P2 passage 5 and P3 passage 6, described P1 passage 4 is arranged on filler opening 2, described P2 passage 5 is arranged on oil outlet 3, described P1 passage 4 is provided with the first connecting passage 7 with P2 passage 5 intersections, the valve body 1 of described the first connecting passage 7 correspondences is provided with pilot hole 8, be provided with spool 9 in described pilot hole 8, be provided with valve core reseting spring 10 in described spool 9, one end of described valve core reseting spring 10 is connected with spool 9, the other end is fixedly connected with valve body 1, described P1 passage 4 is communicated with setting with P3 passage 6 one ends, the other end connects by the second connecting passage 11 transition, described the second connecting passage 11 is provided with and promotes the piston 12 that spool 9 moves.Described second connects logical 11 roads comprises taper mouth 111 and the piston limit passage 112 that is complementary with piston 12 shapes.Described the first connecting passage 7 and the second connecting passage 11 are communicated with setting.
During real work, fluid enters from the filler opening 2 that is arranged on valve body 1, passes into P1 passage 4 and P3 passage 6, and P1 passage 4 and P2 passage 5 are blocked and can not be communicated with by spool 9, when P3 passage 6 is filled oil, impetus lower piston 12 at pressure oil moves up, and piston 12 promotes spool 9 and moves, and P1 passage 4 and P2 passage 5 are communicated with, oil flows out from oil outlet 3, oil in pipeline all flows out, and the piston oil that is not stressed is controlled and resetted, and the valve core reseting springs 10 in spool 9 reset.Make up the deficiencies in the prior art, improved working efficiency, improved economic benefit, reasonable in design, simple in structure, easy to operate, good working effect.
Specific embodiment described herein is only to the explanation for example of the utility model spirit, the utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (3)
1. efficient hydraulic one-way valve, comprise valve body (1), it is characterized in that: described valve body (1) is provided with filler opening (2) and oil outlet (3), be provided with P1 passage (4) in described valve body (1), P2 passage (5) and P3 passage (6), described P1 passage (4) is arranged on filler opening (2), described P2 passage (5) is arranged on oil outlet (3), described P1 passage (4) is provided with the first connecting passage (7) with P2 passage (5) intersection, the valve body (1) that described the first connecting passage (7) is corresponding is provided with pilot hole (8), be provided with spool (9) in described pilot hole (8), be provided with valve core reseting spring (10) in described spool (9), one end of described valve core reseting spring (10) is connected with spool (9), the other end is fixedly connected with valve body (1), described P1 passage (4) is communicated with setting with P3 passage (6) one ends, the other end connects by the second connecting passage (11) transition, described the second connecting passage (11) is provided with and promotes the mobile piston (12) of spool (9).
2. efficient hydraulic one-way valve according to claim 1 is characterized in that: described second connects logical (11) road comprises taper mouth (111) and the piston limit passage (112) that is complementary with piston (12) shape.
3. efficient hydraulic one-way valve according to claim 1, is characterized in that: described the first connecting passage (7) and the second connecting passage (11) connection setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320258958 CN203272305U (en) | 2013-05-10 | 2013-05-10 | Efficient hydraulic drive check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320258958 CN203272305U (en) | 2013-05-10 | 2013-05-10 | Efficient hydraulic drive check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272305U true CN203272305U (en) | 2013-11-06 |
Family
ID=49502727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320258958 Expired - Fee Related CN203272305U (en) | 2013-05-10 | 2013-05-10 | Efficient hydraulic drive check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203272305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061203A (en) * | 2014-06-26 | 2014-09-24 | 无锡市威海达机械制造有限公司 | High-pressure one-way valve |
-
2013
- 2013-05-10 CN CN 201320258958 patent/CN203272305U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061203A (en) * | 2014-06-26 | 2014-09-24 | 无锡市威海达机械制造有限公司 | High-pressure one-way valve |
| CN104061203B (en) * | 2014-06-26 | 2016-05-11 | 无锡市威海达机械制造有限公司 | A kind of high pressure check 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: 20131106 Termination date: 20140510 |