CN215487864U - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN215487864U CN215487864U CN202122301002.2U CN202122301002U CN215487864U CN 215487864 U CN215487864 U CN 215487864U CN 202122301002 U CN202122301002 U CN 202122301002U CN 215487864 U CN215487864 U CN 215487864U
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- valve
- end cover
- spring
- valve body
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Abstract
The utility model relates to a check valve, which comprises a valve body and a valve assembly, and is characterized in that: the valve body in be provided with the valve pocket that is used for placing the valve subassembly, the one end of valve body is provided with the air inlet that is linked together with the valve pocket, the other end of valve body be provided with the gas outlet that is linked together with the valve pocket, the valve subassembly including the activity set up valve in the valve pocket, set up end cover in the gas outlet, set up the spring between valve and end cover, the valve on be provided with the sealing washer with the sealed complex of valve body, the perisporium of valve on be provided with a plurality of through-holes that are linked together with the valve pocket, the end cover on be provided with the gas pocket of intercommunication between valve pocket and gas outlet. The utility model has the advantages of simple structure, stable and reliable performance, convenient installation and convenient use.
Description
Technical Field
The utility model relates to the technical field of pneumatic elements, in particular to a check valve.
Background
Currently, the function of a check valve is to allow media flow in one direction only, but to prevent flow in the opposite direction. Typically such valves are self-actuating, with the flap opening under the pressure of a fluid flowing in one direction; when the fluid flows in the opposite direction, the valve flap is combined by the fluid pressure and the self-weight of the valve flap to act on the valve seat, thereby cutting off the flow. The pipeline is used for preventing the backflow phenomenon caused by the pressure drop of an air source or the pressure drop caused by the increase of air consumption. The existing check valve has the defects of unreasonable structural design, complex structure, inconvenient assembly and narrow application pressure range.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides the check valve which is simple in structure, stable and reliable in performance, convenient and fast to assemble and wide in application pressure range.
In order to achieve the purpose, the check valve comprises a valve body and a valve assembly, wherein a valve cavity used for placing the valve assembly is arranged in the valve body, an air inlet communicated with the valve cavity is formed in one end of the valve body, an air outlet communicated with the valve cavity is formed in the other end of the valve body, the valve assembly comprises a valve movably arranged in the valve cavity, an end cover arranged in the air outlet, and a spring arranged between the valve and the end cover, a sealing ring in sealing fit with the valve body is arranged on the valve, a plurality of through holes communicated with the valve cavity are formed in the peripheral wall of the valve, and air holes communicated between the valve cavity and the air outlet are formed in the end cover.
The beneficial effect of above-mentioned structure is: this check valve structural design is simple, is provided with a plurality of on the valve and passes through to can increase the flow area of this valve, and start pressure is low to 0.05MPa, and pressure application range is wider, and working property is more stable, and is provided with the spring between valve and the end cover, and the valve action is more sensitive, thereby this check valve has simple structure, stable performance is reliable, the assembly is convenient, service pressure range is wide advantage.
Particularly, the valve on be provided with spring matched with draw-in groove, the one end block of spring in the draw-in groove, play the joint cooperation that constitutes spring and valve, the end cover on be provided with spring matched with constant head tank, the other end block of spring in the constant head tank, and constitute the joint cooperation of spring and end cover. The spring is clamped between the valve and the end cover, so that the assembly of the spring, the valve and the end cover is facilitated, and the assembly efficiency of the check valve is improved.
Particularly, an internal thread is arranged in the air outlet, an external thread matched with the internal thread is arranged on the end cover, the end cover is screwed in the air outlet, and the air hole is a hexagon socket. The end cover is in threaded connection with the valve body, and the air hole is a hexagon socket hole, so that the end cover and the valve body can be assembled conveniently, and the assembly efficiency of the check valve can be improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
As shown in fig. 1, an embodiment of the present invention is a check valve, including a valve body 10 and a valve assembly 20, wherein a valve cavity 100 for placing the valve assembly 20 is disposed in the valve body 10, an air inlet 101 communicated with the valve cavity 100 is disposed at one end of the valve body 10, an air outlet 102 communicated with the valve cavity 100 is disposed at the other end of the valve body 10, the valve assembly 20 includes a valve 21 movably disposed in the valve cavity 100, an end cover 22 disposed in the air outlet 102, and a spring 23 disposed between the valve 21 and the end cover 22, a sealing ring 24 sealingly engaged with the valve body 10 is disposed on the valve 21, a plurality of through holes 211 communicated with the valve cavity 100 are disposed on a peripheral wall of the valve 21, and an air hole 221 communicated between the valve cavity 100 and the air outlet 102 is disposed on the end cover 22. Valve 21 on be provided with the draw-in groove 212 with spring 23 matched with, spring 23's one end block in draw-in groove 212, play the joint cooperation that constitutes spring 23 and valve 21, end cover 22 on be provided with the constant head tank 222 with spring 23 matched with, spring 23's the other end block in constant head tank 222, and constitute the joint cooperation of spring 23 and end cover 22. The spring is clamped between the valve and the end cover, so that the assembly of the spring, the valve and the end cover is facilitated, and the assembly efficiency of the check valve is improved. An internal thread 103 is arranged in the air outlet 102, an external thread 223 matched with the internal thread 103 is arranged on the end cover 22, the end cover 22 is screwed in the air outlet 102, and the air hole 221 is a hexagon socket. The end cover is in threaded connection with the valve body, and the air hole is a hexagon socket hole, so that the end cover and the valve body can be assembled conveniently, and the assembly efficiency of the check valve can be improved.
This check valve structural design is simple, is provided with a plurality of on the valve and passes through to can increase the flow area of this valve, and start pressure is low to 0.05MPa, and pressure application range is wider, and working property is more stable, and is provided with the spring between valve and the end cover, and the valve action is more sensitive, thereby this check valve has simple structure, stable performance is reliable, the assembly is convenient, service pressure range is wide advantage.
Claims (3)
1. The utility model provides a check valve, includes valve body, valve assembly, its characterized in that: the valve body in be provided with the valve pocket that is used for placing the valve subassembly, the one end of valve body is provided with the air inlet that is linked together with the valve pocket, the other end of valve body be provided with the gas outlet that is linked together with the valve pocket, the valve subassembly including the activity set up valve in the valve pocket, set up end cover in the gas outlet, set up the spring between valve and end cover, the valve on be provided with the sealing washer with the sealed complex of valve body, the perisporium of valve on be provided with a plurality of through-holes that are linked together with the valve pocket, the end cover on be provided with the gas pocket of intercommunication between valve pocket and gas outlet.
2. The check valve of claim 1, wherein: the valve on be provided with spring matched with draw-in groove, the one end block of spring in the draw-in groove, play the joint cooperation that constitutes spring and valve, the end cover on be provided with spring matched with constant head tank, the other end block of spring in the constant head tank, and constitute the joint cooperation of spring and end cover.
3. The check valve of claim 1 or 2, wherein: the gas outlet in be provided with the internal thread, the end cover on be provided with internal thread assorted external screw thread, the end cover screw in the gas outlet, the gas pocket be interior hexagonal hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122301002.2U CN215487864U (en) | 2021-09-22 | 2021-09-22 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122301002.2U CN215487864U (en) | 2021-09-22 | 2021-09-22 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215487864U true CN215487864U (en) | 2022-01-11 |
Family
ID=79769871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122301002.2U Active CN215487864U (en) | 2021-09-22 | 2021-09-22 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215487864U (en) |
-
2021
- 2021-09-22 CN CN202122301002.2U patent/CN215487864U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |