CN203757060U - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN203757060U CN203757060U CN201420184958.6U CN201420184958U CN203757060U CN 203757060 U CN203757060 U CN 203757060U CN 201420184958 U CN201420184958 U CN 201420184958U CN 203757060 U CN203757060 U CN 203757060U
- Authority
- CN
- China
- Prior art keywords
- hole
- piston
- valve
- oil
- oil inlet
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model provides a check valve which comprises a valve body, a plug, a screw plug, a valve sleeve, a conical valve core and a piston, wherein a first thread hole, a piston hole, an oil conveying hole, an oil storage cavity and a second thread hole are formed in the valve body in sequence from left to right; the plug is connected to the first thread hole in a sealed manner; the screw plug is connected into the second thread hole in a sealed manner; the valve sleeve is fixedly mounted in the oil storage cavity; an oil inlet hole is formed in the front end face of the valve sleeve; an oil outlet hole is formed in the side wall of the valve sleeve; the conical valve core is arranged in the valve sleeve in a sliding fit manner; a spring is arranged at the rear end of the conical valve core; the piston is arranged in the piston hole in a sliding fit manner; a second piston body arranged in the oil conveying hole in a sliding fit manner is arranged at the right end of the piston; a mandril is arranged at the right end of the second piston body and penetrates through the oil inlet hole to be in contact with the conical valve core; a first oil inlet, a second oil inlet and a third oil inlet are formed in the bottom surface of the valve body. The check valve is simple and compact in structure, convenient and quick to assemble and good in liquid control effect, and runs stably.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of 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 compared with consequence in the hydraulic prop equipment of coal mine machinery.Traditional Pilot operated check valve complex structure, is difficult for assembling, and hydraulic control weak effect.
Model utility content
(1) technical problem that will solve
The technical problems to be solved in the utility model is to provide a kind of simple and compact for structure, easy to assembly quick, and the one-way valve stable, hydraulic control is effective.
(2) technological scheme
For solving the problems of the technologies described above, the utility model provides a kind of one-way valve, comprise valve body 1, plug 2, screw plug 3, valve pocket 4, poppet valve core 5 and piston 6, on described valve body 1, offer successively from left to right the first tapped hole 101, piston hole 102, oil transportation hole 103, shoe cream room 104 and the second tapped hole 105, described plug 2 is sealedly connected on described the first tapped hole 101, described screw plug 3 is sealedly connected in described the second tapped hole 105, described valve pocket 4 is fixedly mounted in described shoe cream room 104, the front-end face of described valve pocket 4 offers the oil inlet hole 401 that is communicated with described oil transportation hole 103, the sidewall of described valve pocket 4 offers the oil outlet 402 that is communicated with described oil inlet hole 401 and shoe cream room, sliding the fitting in described valve pocket 4 of described poppet valve core 5, and the rear end of described poppet valve core 5 is provided with spring, sliding the fitting in described piston hole 102 of described piston 6, and the right-hand member of described piston 6 is provided with sliding the second piston body 601 in described oil transportation hole 103 that fits over, the right-hand member of described the second piston body 601 is provided with push rod 602, described push rod 602 contacts with described poppet valve core 5 through described oil inlet hole 401 is rear, the bottom surface of described valve body 1 offers the first filler opening 106, the second filler opening 107 and the 3rd filler opening 108, described the first filler opening 106 is communicated with the rodless cavity of described piston hole, described the second filler opening is communicated with described oil transportation hole, described the 3rd oil inlet hole is communicated with described shoe cream room.
Further, between described piston hole 102 and described oil transportation hole, be provided with cavity 109, the diameter of described cavity 109 is greater than the diameter of described piston hole, and the sidewall of described cavity 109 is provided with the 4th filler opening 110 extending to outside described valve body 1.
Further, the rear end of described piston 6 is provided with jacking block 603.
Further, the end face of described push rod 602 is arc surface.
Further, described oil outlet is four and is circumferentially distributed on the sidewall of described valve pocket 4.
(3) beneficial effect
The utility model one-way valve, the mode that adopts piston to coordinate with poppet valve core, realizes low voltage control high pressure, and stable and reliable operation, and two ends installation plug and the screw plug dismantled respectively, facilitate the replacing of regular maintenance and part; The utility model one-way valve, simple and compact for structure, easy to assembly quick, stable, hydraulic control is effective.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one-way valve;
Fig. 2 is the structural representation of the valve body of the utility model one-way valve;
Fig. 3 is A portion enlarged view in Fig. 1.
Embodiment
Consult Fig. 1～Fig. 3, the utility model provides a kind of one-way valve, comprise valve body 1, plug 2, screw plug 3, valve pocket 4, poppet valve core 5 and piston 6, on valve body 1, offer successively from left to right the first tapped hole 101, piston hole 102, oil transportation hole 103, shoe cream room 104 and the second tapped hole 105, plug 2 is sealedly connected on the first tapped hole 101, screw plug 3 is sealedly connected in the second tapped hole 105, valve pocket 4 is fixedly mounted in shoe cream room 104, front-end face at valve pocket 4 offers the oil inlet hole 401 that is communicated with oil transportation hole 103, sidewall at valve pocket 4 offers the oil outlet 402 that is communicated with oil inlet hole 401 and shoe cream room, in the present embodiment, oil outlet is four and is circumferentially distributed on the sidewall of valve pocket 4, poppet valve core 5 is sliding to be fitted in this valve pocket 4, and the rear end at poppet valve core 5 is provided with spring, this spring makes the movement tendency of the oriented oil transportation of poppet valve core hole one side, piston 6 is sliding to be fitted in piston hole 102, and the right-hand member at piston 6 is provided with sliding the second piston body 601 in oil transportation hole 103 that fits over, right-hand member at the second piston body 601 is provided with push rod 602, push rod 602 contacts with poppet valve core 5 through oil inlet hole 401 is rear, in the present embodiment, the end face of push rod 602 is arc surface, in the bottom surface of valve body 1, offer the first filler opening 106, the second filler opening 107 and the 3rd filler opening 108, the first filler opening 106 is communicated with the rodless cavity one side of bar (without) of piston holes, the second filler opening is communicated with oil transportation hole, the 3rd oil inlet hole is communicated with shoe cream room, in order further to improve operation stability, between piston hole 102 and oil transportation hole, be provided with cavity 109, the diameter of this cavity 109 is greater than the diameter of piston hole, and is provided with at the sidewall of cavity 109 the 4th filler opening 110 extending to outside valve body 1, in order to prevent seizure of piston, in the rear end of piston 6, be provided with jacking block 603.
The utility model one-way valve, the mode that adopts piston to coordinate with poppet valve core, realizes low voltage control high pressure, and stable and reliable operation, and two ends installation plug and the screw plug dismantled respectively, facilitate the replacing of regular maintenance and part; The utility model one-way valve, simple and compact for structure, easy to assembly quick, stable, hydraulic control is effective.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. an one-way valve, it is characterized in that: comprise valve body (1), plug (2), screw plug (3), valve pocket (4), poppet valve core (5) and piston (6), on described valve body (1), offer successively from left to right the first tapped hole (101), piston hole (102), oil transportation hole (103), shoe cream room (104) and the second tapped hole (105), described plug (2) is sealedly connected on described the first tapped hole (101), described screw plug (3) is sealedly connected in described the second tapped hole (105), described valve pocket (4) is fixedly mounted in described shoe cream room (104), the front-end face of described valve pocket (4) offers the oil inlet hole (401) that is communicated with described oil transportation hole (103), the sidewall of described valve pocket (4) offers the oil outlet (402) that is communicated with described oil inlet hole (401) and shoe cream room, described poppet valve core (5) is sliding to be fitted in described valve pocket (4), and the rear end of described poppet valve core (5) is provided with spring, described piston (6) is sliding to be fitted in described piston hole (102), and the right-hand member of described piston (6) is provided with sliding the second piston body (601) fitting in described oil transportation hole (103), the right-hand member of described the second piston body (601) is provided with push rod (602), described push rod (602) contacts with described poppet valve core (5) through after described oil inlet hole (401), the bottom surface of described valve body (1) offers the first filler opening (106), the second filler opening (107) and the 3rd filler opening (108), described the first filler opening (106) is communicated with the rodless cavity of described piston hole, described the second filler opening is communicated with described oil transportation hole, described the 3rd oil inlet hole is communicated with described shoe cream room.
2. one-way valve as claimed in claim 1, it is characterized in that: between described piston hole (102) and described oil transportation hole, be provided with cavity (109), the diameter of described cavity (109) is greater than the diameter of described piston hole, and the sidewall of described cavity (109) is provided with the 4th filler opening (110) extending to outside described valve body (1).
3. one-way valve as claimed in claim 1, is characterized in that: the rear end of described piston (6) is provided with jacking block (603).
4. one-way valve as claimed in claim 1, is characterized in that: the end face of described push rod (602) is arc surface.
5. one-way valve as claimed in claim 1, is characterized in that: described oil outlet is four and is circumferentially distributed on the sidewall of described valve pocket (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420184958.6U CN203757060U (en) | 2014-04-16 | 2014-04-16 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420184958.6U CN203757060U (en) | 2014-04-16 | 2014-04-16 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203757060U true CN203757060U (en) | 2014-08-06 |
Family
ID=51252339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420184958.6U Expired - Fee Related CN203757060U (en) | 2014-04-16 | 2014-04-16 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203757060U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455568A (en) * | 2014-10-30 | 2015-03-25 | 无锡市威海达机械制造有限公司 | Check valve capable of reducing starting pressure |
| CN108612879A (en) * | 2018-05-28 | 2018-10-02 | 江苏安普阀门机械有限公司 | A kind of one-way conduction valve body |
-
2014
- 2014-04-16 CN CN201420184958.6U patent/CN203757060U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455568A (en) * | 2014-10-30 | 2015-03-25 | 无锡市威海达机械制造有限公司 | Check valve capable of reducing starting pressure |
| CN108612879A (en) * | 2018-05-28 | 2018-10-02 | 江苏安普阀门机械有限公司 | A kind of one-way conduction valve body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20150416 |
|
| EXPY | Termination of patent right or utility model |