CN212657300U - Anti-impact wear type hydraulic control one-way valve - Google Patents
Anti-impact wear type hydraulic control one-way valve Download PDFInfo
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- CN212657300U CN212657300U CN202021219027.7U CN202021219027U CN212657300U CN 212657300 U CN212657300 U CN 212657300U CN 202021219027 U CN202021219027 U CN 202021219027U CN 212657300 U CN212657300 U CN 212657300U
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Abstract
The utility model discloses an anti-impact wear type hydraulic control one-way valve, which comprises a valve cover, a valve body, a valve core, a valve seat and a control valve core, wherein the upper part of the valve seat is connected with the lower part of the valve body through threads, the lower part of the valve body is provided with a valve cavity, the upper part of the valve body is provided with a buffer cavity, and the top of the valve body is provided with the valve cover; the valve seat is internally provided with a valve port, an upper cavity is arranged above the valve port, a lower cavity is arranged below the valve port, a control valve core is arranged in the lower cavity of the valve seat, the valve core is arranged in the upper cavity of the valve seat and the valve cavity of the valve body, a return spring is sleeved on a valve rod of the valve core, the valve rod of the valve core penetrates through a central hole of the valve body and extends into the buffer cavity, and the diameter of the central hole of the valve body is larger than that of the valve. The utility model discloses set up the cushion chamber at the valve body to reserve the throttle clearance between valve body and case, this liquid accuse check valve can effectual reduction pressure fluctuation and frequent impact effect increase life at the case terminal surface wearing and tearing that the case leads to.
Description
Technical Field
The utility model relates to a liquid accuse check valve among the hydraulic system, concretely relates to protecting against shock wearing and tearing formula liquid accuse check valve.
Background
The hydraulic control one-way valve is widely applied to locking of a hydraulic cylinder and pressure maintaining of a system, such as locking of a support oil cylinder of a crane and the like and pressure maintaining of a system in a cone crusher, and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve when the violent impact of load in the system and frequently assault, liquid accuse check valve case and valve body sealing surface are easily by wearing and tearing, and life subtracts the not enough of weak point, the utility model provides a prevent impact wear and tear formula liquid accuse check valve sets up the cushion chamber at the valve body to reserve the throttle clearance between valve body and case, this liquid accuse check valve can effectual reduction pressure fluctuation and frequent impact effect increase life at the case terminal surface wearing and tearing that the case leads to.
The utility model provides a technical scheme that its technical problem adopted is: an impact wear prevention type hydraulic control one-way valve comprises a valve cover, a valve body, a valve core, a valve seat and a control valve core, wherein the upper part of the valve seat is connected with the lower part of the valve body through threads; the valve seat is internally provided with a valve port, an upper cavity is arranged above the valve port, a lower cavity is arranged below the valve port, a control valve core is arranged in the lower cavity of the valve seat, the valve core is arranged in the upper cavity of the valve seat and the valve cavity of the valve body, a return spring is sleeved on a valve rod of the valve core, the valve rod of the valve core penetrates through a central hole of the valve body and extends into the buffer cavity, and the diameter of the central hole of the valve body is larger than that of the valve.
More preferably, the area of the valve stem is equal to the area of the valve port.
More preferably, the size of the clearance between the valve rod and the valve body is 0.02-0.07 mm.
Preferably, the valve cover is provided with a plug, and the distance between the end face of the plug and the end face of the valve rod is the maximum opening distance of the valve core.
Preferably, the lower end of the valve core is provided with a valve ball, and the valve port is blocked by the valve ball.
Further preferably, the valve body and the valve cover are welded together or detachably connected.
Further preferably, the side face of the valve seat is provided with a third oil port communicated with the upper cavity and a second oil port communicated with the lower cavity, and the bottom end of the valve seat is provided with a first oil port.
Further preferably, the first sealing ring is sleeved on the outer surface of the valve body, the second sealing ring and the fourth sealing ring are sleeved on the outer surface of the valve seat, the third oil port is located between the first sealing ring and the second sealing ring, the second oil port is located between the second sealing ring and the fourth sealing ring, and the third sealing ring is sleeved on the control valve core.
The technical effects of the utility model: the valve rod area and the valve port area of the valve core are equal to offset the acting force of pressure on the valve core impact valve body, meanwhile, the buffer cavity is additionally arranged on the upper portion of the valve body, a gap is reserved between the valve rod and the valve body of the valve core, hydraulic oil is strong in buffering through gap inflow, the throttling effect is achieved, further, the buffering effect is achieved on the load force acting on the end face of the valve rod, pressure fluctuation can be effectively reduced, frequent impact is achieved on the end face of the valve core, abrasion of the end face of the valve core is avoided, and the service life is.
Drawings
Fig. 1 is a sectional structure view of the present invention.
In the figure: 1. blocking; 2. a valve cover; 3. a valve body; 4. a return spring; 5. a valve core; 6. a valve seat; 7. a control valve core; 8. a third oil port; 9. a second oil port; 10. a first oil port; 11. a buffer chamber; 12. a throttle gap; 13. a first seal ring; 14. a second seal ring; 15. a third seal ring; 16. a fourth seal ring; 17. and (4) valve ports.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Referring to fig. 1, the impact wear prevention type hydraulic control one-way valve is composed of a plug 1, a valve cover 2, a valve body 3, a valve core 5, a valve seat 6 and a control valve core 7, wherein the upper part of the valve seat 6 is connected with the lower part of the valve body 3 through threads, the lower part of the valve body 3 is provided with a valve cavity, the upper part of the valve body 3 is provided with a buffer cavity 11, the top of the valve body 3 is provided with the valve cover 2, and; the valve seat 6 is provided with a valve port 17, the valve port 17 is used as a boundary, the upper part of the valve seat 6 is provided with an upper cavity, the lower part of the valve seat 6 is provided with a lower cavity, a control valve core 7 is arranged in the lower cavity of the valve seat 6, the valve core 5 is arranged in the upper cavity of the valve seat 6 and the valve cavity of the valve body 3, a return spring 4 is sleeved on a valve rod of the valve core 5, the valve rod of the valve core 5 penetrates through a central hole of the valve body 3 and extends into a buffer cavity 11, the lower end of the valve core 5 is provided with a valve ball, the valve port 17 is blocked by the valve ball, the area of the valve rod on the valve core 5 is the same as that of the valve port 17, the diameter of.
The valve body 3 and the valve cover 2 can be welded into a whole or can be detachably connected, and the distance between the end surface of the plug 1 and the end surface of the valve rod is the maximum opening distance of the valve core 5. The side of the valve seat 6 is provided with a third oil port 8 communicated with the upper cavity and a second oil port 9 communicated with the lower cavity, and the bottom end of the valve seat 6 is provided with a first oil port 10. The outer surface of the valve body 3 is sleeved with a first sealing ring 13, the outer surface of the valve seat 6 is sleeved with a second sealing ring 14 and a fourth sealing ring 16, the third oil port 8 is positioned between the first sealing ring 13 and the second sealing ring 14, the second oil port 9 is positioned between the second sealing ring 14 and the fourth sealing ring 16, and the control valve core 7 is sleeved with a third sealing ring 15.
Because the area of the valve rod is the same as that of the valve port, the load force is balanced to the force of the valve core 5 in the valve seat 6 and the valve body 3, the force of the load force acting on the valve core 5 is totally concentrated on the end surface of the valve rod of the valve core 5, a gap 12 of 0.02-0.07mm is reserved between the valve rod and the valve body, the gap 12 plays a throttling role, the effective load force acting on the end surface of the valve rod plays a buffering role, meanwhile, the size of a buffer cavity of the valve body 3 also affects the buffering effect, and the larger the buffer cavity is, the better the buffering effect is.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an protecting against shock wearing and tearing formula liquid accuse check valve, includes valve gap, valve body, case, disk seat, control valve core, disk seat upper portion passes through threaded connection with the valve body lower part, and the valve body lower part is equipped with valve pocket, characterized by: the upper part of the valve body is provided with a buffer cavity, and the top of the valve body is provided with a valve cover; the valve seat is internally provided with a valve port, an upper cavity is arranged above the valve port, a lower cavity is arranged below the valve port, a control valve core is arranged in the lower cavity of the valve seat, the valve core is arranged in the upper cavity of the valve seat and the valve cavity of the valve body, a return spring is sleeved on a valve rod of the valve core, the valve rod of the valve core penetrates through a central hole of the valve body and extends into the buffer cavity, and the diameter of the central hole of the valve body is larger than that of the valve.
2. An impact wear resistant hydraulically controlled check valve as defined in claim 1, characterized by: the area of the valve rod is equal to the area of the valve port.
3. An impact wear resistant hydraulically controlled check valve as defined in claim 1, characterized by: the valve cover is provided with a plug.
4. An impact wear resistant hydraulically controlled check valve as defined in claim 1, characterized by: the lower end of the valve core is provided with a valve ball, and the valve port is blocked by the valve ball.
5. An impact wear resistant hydraulically controlled check valve as defined in claim 1, characterized by: the valve body and the valve cover are welded into a whole or detachably connected.
6. An impact wear resistant hydraulically controlled check valve as defined in claim 1, characterized by: the side of the valve seat is provided with a third oil port communicated with the upper cavity and a second oil port communicated with the lower cavity, and the bottom end of the valve seat is provided with a first oil port.
7. An impact wear resistant hydraulically controlled check valve as defined in claim 6, wherein: the first sealing ring is sleeved on the outer surface of the valve body, the second sealing ring and the fourth sealing ring are sleeved on the outer surface of the valve seat, the third oil port is located between the first sealing ring and the second sealing ring, the second oil port is located between the second sealing ring and the fourth sealing ring, and the third sealing ring is sleeved on the control valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021219027.7U CN212657300U (en) | 2020-06-28 | 2020-06-28 | Anti-impact wear type hydraulic control one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021219027.7U CN212657300U (en) | 2020-06-28 | 2020-06-28 | Anti-impact wear type hydraulic control one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212657300U true CN212657300U (en) | 2021-03-05 |
Family
ID=74760946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021219027.7U Active CN212657300U (en) | 2020-06-28 | 2020-06-28 | Anti-impact wear type hydraulic control one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212657300U (en) |
-
2020
- 2020-06-28 CN CN202021219027.7U patent/CN212657300U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 330004 No. 300, Hongwan Avenue, Wanli District, Nanchang City, Jiangxi Province Patentee after: Nanchang Mining Machinery Group Co.,Ltd. Address before: 330004 No. 300, Hongwan Avenue, Wanli District, Nanchang City, Jiangxi Province Patentee before: NANCHANG MINERAL SYSTEMS Co.,Ltd. |