CN212960019U - Axial flow type check valve with damping function - Google Patents
Axial flow type check valve with damping function Download PDFInfo
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- CN212960019U CN212960019U CN202021455283.6U CN202021455283U CN212960019U CN 212960019 U CN212960019 U CN 212960019U CN 202021455283 U CN202021455283 U CN 202021455283U CN 212960019 U CN212960019 U CN 212960019U
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- valve
- damping
- check valve
- damping function
- axial flow
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Abstract
The utility model discloses a take axial-flow check valve of damping function, which comprises a valve body, the water conservancy diversion passageway has been seted up to the inside setting of valve body, support ring fixedly connected with damping piston cylinder is passed through to the inside of water conservancy diversion passageway, the inside of damping piston cylinder is provided with the motion groove, damping spring fixedly connected with buffer piston is passed through to the inside of motion groove, the inside of valve body and the right side that is located the water conservancy diversion passageway are provided with the surge chamber, the inside of surge chamber is provided with the supporting boot, the lateral wall of supporting boot is provided with the valve rod, the surface of valve rod is provided with the valve clack. The utility model discloses, control effect is good, and control process safety is difficult for exploding the jar.
Description
Technical Field
The utility model relates to a check valve field especially relates to an axial-flow type check valve of taking damping function.
Background
The general axial flow type check valve comprises a valve body, a valve clack, a valve rod, a valve sleeve, a spring and the like, the check valve is used as a protection valve of the pump, the check valve is required to be capable of being quickly closed to prevent a medium from flowing back to enable the pump to reversely rotate to burn out a pump motor, and the check valve is used for pipeline protection and is required not to be capable of being closed too quickly to prevent water hammer shock waves from being generated to enable a pipeline to be broken.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an axial flow type check valve with a damping function.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a take axial-flow type check valve of damping function, includes the valve body, the water conservancy diversion passageway has been seted up to the inside setting of valve body, support ring fixedly connected with damping piston cylinder is passed through to the inside of water conservancy diversion passageway, the inside of damping piston cylinder is provided with the motion groove, damping spring fixedly connected with buffer piston is passed through to the inside of motion groove, the inside of valve body and the right side that is located the water conservancy diversion passageway are provided with the surge chamber, the inside of surge chamber is provided with the supporting boot, the lateral wall of supporting boot is provided with the valve rod, the surface of valve rod is provided.
As a further description of the above technical solution:
the lateral wall of valve body is provided with needle type governing valve, the inside of needle type governing valve is provided with the circulation hole.
As a further description of the above technical solution:
the lateral wall of the motion groove is provided with a through hole, and one end of the needle type adjusting valve extends into the through hole.
As a further description of the above technical solution:
and a valve sleeve is arranged between the support cover and the buffer chamber.
As a further description of the above technical solution:
and a return spring is arranged between the valve rod and the support cover.
As a further description of the above technical solution:
one end of the valve rod, which is far away from the support cover, extends into the motion groove.
As a further description of the above technical solution:
a plurality of locating holes are formed in the surface of the valve clack, a mounting plate is fixedly connected to the joint of the flow guide channel and the buffer chamber, and a plurality of locating screws are arranged on the side wall of the mounting plate.
The utility model discloses following beneficial effect has:
1. compared with the prior art, the axial flow check valve with the damping function has the advantages that the damping piston cylinder, the damping spring and the needle type adjusting valve are additionally arranged in the flow guide channel, when a medium flows backwards, when the valve clack is close to the closing position, the valve rod contacts the buffering piston and pushes the buffering piston to compress the damping spring in the damping piston cylinder, the medium in the damping piston cylinder is adjusted to circulate back and forth in the buffering piston through the circulation hole of the needle type adjusting valve, the circulation speed of the medium is adjusted by adjusting the opening degree of the needle type adjusting valve, the closing speed of the adjusting device is achieved, the control effect of the device is good, the control process is safe, and cylinder explosion is not easy.
Drawings
Fig. 1 is a front view of the internal structure of an axial flow check valve with damping function according to the present invention.
Illustration of the drawings:
1. a valve body; 2. a flow guide channel; 3. a support ring; 4. a damping piston cylinder; 5. a motion groove; 6. a damping spring; 7. a cushion piston; 8. a buffer chamber; 9. a support housing; 10. a valve stem; 11. a valve flap; 12. a needle-type regulating valve; 13. a circulation hole; 14. a through hole; 15. a valve housing; 16. a return spring; 17. positioning holes; 18. mounting a plate; 19. and (5) positioning the screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-1, the utility model provides a pair of take axial-flow type check valve of damping function: including valve body 1, water conservancy diversion passageway 2 has been seted up to the inside setting of valve body 1, water conservancy diversion passageway 2's inside is through 3 fixedly connected with damping piston cylinder 4 of support ring, damping piston cylinder 4's inside is provided with motion groove 5, 6 fixedly connected with buffer piston 7 of damping spring are passed through to the inside of motion groove 5, buffer piston 7 removes, partial medium in the motion groove 5 gets into needle type governing valve 12, the inside of valve body 1 and the right side that is located water conservancy diversion passageway 2 are provided with surge chamber 8, play medium backward flow cushioning effect, in order to avoid valve body 1 to burst, surge chamber 8's inside is provided with support cover 9, the lateral wall of support cover 9 is provided with valve rod 10, the surface of valve rod 10 is provided with valve clack.
The side wall of the valve body 1 is provided with a needle type regulating valve 12 for regulating medium circulation speed, a circulation hole 13 is arranged inside the needle type regulating valve 12, the side wall of the moving groove 5 is provided with a through hole 14, one end of the needle type regulating valve 12 extends into the through hole 14, so that the medium can be conveniently regulated by the needle type regulating valve 12, a valve sleeve 15 is arranged between the supporting cover 9 and the buffer chamber 8, a reset spring 16 is arranged between the valve rod 10 and the supporting cover 9 to reset the valve rod 10, so that the valve clack 11 is opened, the device is through-flow, one end of the valve rod 10 far away from the supporting cover 9 extends into the moving groove 5, when the valve clack 11 moves, the valve rod 10 pushes the buffer piston 7 to move, so that the needle type regulating valve 12 works, the surface of the valve clack 11 is provided with a plurality of positioning holes 17, a mounting plate 18 is fixedly connected at the joint of the diversion channel 2 and, the position of the valve clack 11 is determined, and the sealing effect is good when the valve clack 11 plays a closing role.
The working principle is as follows: the device is additionally provided with a damping piston cylinder 4, a damping spring 6 and a needle type adjusting valve 12 in a flow guide channel 2, when a medium flows backwards, when a valve clack 11 is close to a closing position, a valve rod 10 contacts a buffer piston 7 and pushes the buffer piston 7 to compress the damping spring 6 in the damping piston cylinder 4, the medium in the damping piston cylinder 4 is adjusted to circulate in front of and behind the buffer piston 7 through a circulation hole 13 of the needle type adjusting valve 12, and the circulation speed of the medium is adjusted by adjusting the opening degree of the needle type adjusting valve 12 to achieve the closing speed of the adjusting device.
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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (7)
1. The utility model provides a take axial-flow type check valve of damping function, includes valve body (1), its characterized in that: flow guide channel (2) have been seted up to the inside setting of valve body (1), support ring (3) fixedly connected with damping piston cylinder (4) are passed through to the inside of flow guide channel (2), the inside of damping piston cylinder (4) is provided with motion groove (5), damping spring (6) fixedly connected with buffer piston (7) are passed through to the inside of motion groove (5), the inside of valve body (1) and the right side that is located flow guide channel (2) are provided with surge chamber (8), the inside of surge chamber (8) is provided with support housing (9), the lateral wall of support housing (9) is provided with valve rod (10), the surface of valve rod (10) is provided with valve clack (11).
2. The axial flow check valve with damping function as claimed in claim 1, wherein: the side wall of the valve body (1) is provided with a needle type regulating valve (12), and a circulating hole (13) is formed in the needle type regulating valve (12).
3. The axial flow check valve with damping function as claimed in claim 2, wherein: a through hole (14) is formed in the side wall of the moving groove (5), and one end of the needle type adjusting valve (12) extends into the through hole (14).
4. The axial flow check valve with damping function as claimed in claim 1, wherein: a valve sleeve (15) is arranged between the support cover (9) and the buffer chamber (8).
5. The axial flow check valve with damping function as claimed in claim 1, wherein: and a return spring (16) is arranged between the valve rod (10) and the support cover (9).
6. The axial flow check valve with damping function as claimed in claim 1, wherein: one end, far away from the support cover (9), of the valve rod (10) extends into the moving groove (5).
7. The axial flow check valve with damping function as claimed in claim 1, wherein: a plurality of locating holes (17) are formed in the surface of the valve clack (11), a mounting plate (18) is fixedly connected to the joint of the flow guide channel (2) and the buffer chamber (8), and a plurality of locating screws (19) are arranged on the side wall of the mounting plate (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021455283.6U CN212960019U (en) | 2020-07-22 | 2020-07-22 | Axial flow type check valve with damping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021455283.6U CN212960019U (en) | 2020-07-22 | 2020-07-22 | Axial flow type check valve with damping function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212960019U true CN212960019U (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021455283.6U Active CN212960019U (en) | 2020-07-22 | 2020-07-22 | Axial flow type check valve with damping function |
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| Country | Link |
|---|---|
| CN (1) | CN212960019U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233899A (en) * | 2021-12-08 | 2022-03-25 | 中国船舶重工集团公司第七一九研究所 | Stop check valve |
| US11976747B2 (en) | 2019-03-20 | 2024-05-07 | Danfoss A/S | Compressor unit with a damped axial check valve for a discharge outlet |
-
2020
- 2020-07-22 CN CN202021455283.6U patent/CN212960019U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11976747B2 (en) | 2019-03-20 | 2024-05-07 | Danfoss A/S | Compressor unit with a damped axial check valve for a discharge outlet |
| CN114233899A (en) * | 2021-12-08 | 2022-03-25 | 中国船舶重工集团公司第七一九研究所 | Stop check valve |
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