CN212536781U

CN212536781U - Damping slow-closing check valve casting

Info

Publication number: CN212536781U
Application number: CN202020492056.4U
Authority: CN
Inventors: 杨荣瑜; 杨文�
Original assignee: Outong Group Qingtian Wanxin Valve Technology Co ltd
Current assignee: Outong Group Qingtian Wanxin Valve Technology Co ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2021-02-12
Anticipated expiration: 2030-04-07

Abstract

The utility model relates to a check valve technical field just discloses a slow closed check valve foundry goods of damping, which comprises a valve body, the valve pocket has been seted up to the inside of valve body, the top fixed mounting of valve body has the valve gap, the water inlet has been seted up in the left side of valve body, the delivery port has been seted up on the right side of valve body, fixedly connected with round pin axle in the valve pocket, the side surface swing joint of round pin axle has the rocker. This damping slow-closing type check valve foundry goods, communicate with the movable groove each other through the recess, make rivers flow into the movable groove inside from the recess, thereby with the damping piston, piston rod and spring together move right, and release the movable groove with the spring, when closing the water pump, the effect automatic closure of valve clack hand gravity, thereby make the bottom and the spring right side sealing plug overlap joint of valve clack, play the cushioning effect through the spring to the valve clack, thereby the production of water hammer has been avoided, effectual protection has been played to valve clack and valve body, and valve clack and valve body life have been increased.

Description

Damping slow-closing check valve casting

Technical Field

The utility model relates to a check valve technical field specifically is a damping slowly-closing type check valve foundry goods.

Background

The check valve is a valve with a circular valve clack as an opening and closing piece and acts by self weight and medium pressure to block the media from flowing backwards, the check valve only allows the media to flow towards one direction and prevents the media from flowing towards the opposite direction, the check valve works automatically, and the valve clack is opened under the action of fluid pressure flowing towards 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.

Under the condition that the existing check valve is suddenly closed, the valve clack is impacted with the water inlet in the valve body by utilizing the dead weight of the valve clack and the water flow back suction force, so that a water hammer phenomenon when a common water valve is closed is generated, noise is generated, and the valve clack is seriously impacted with the valve body, so that the loss of parts is fast, and the service life is short.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To prior art not enough, the utility model provides a damping slowly-closed check valve foundry goods possesses the production that reduces striking between valve clack and the valve body, has improved advantages such as protective properties to valve body and valve clack, has solved the water hammer phenomenon that produces when the check valve closes, and has accompanied the noise to and valve clack and valve body striking are serious, lead to the part loss fast, the shorter problem of life.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a damping slow-closing check valve casting comprises a valve body, wherein a valve cavity is formed in the valve body, a valve cover is fixedly installed at the top of the valve body, a water inlet is formed in the left side of the valve body, a water outlet is formed in the right side of the valve body, a pin shaft is fixedly connected in the valve cavity, a rocker is movably connected to the side surface of the pin shaft, a valve clack is fixedly connected to the left side of the rocker, which is far away from one end of the pin shaft, a sealing ring is fixedly connected to the left side of the valve clack, a connecting seat is fixedly connected to the right side of the valve clack, a movable groove is formed in the inner side wall of the valve cavity, a groove is formed in the inner side wall of the movable groove, a cylinder body is fixedly connected in the movable, the right side swing joint of activity groove has the sealing plug, the spout has been seted up to the inside wall of valve body, the inside swing joint of spout has the slider, the bottom swing joint of slider has the connecting rod.

Preferably, the valve clack is lapped with the inner side wall of the valve body, and the side surface of the sealing ring is attached to the inner side wall of the water inlet.

Preferably, the valve cover is fixedly installed on the top of the valve body through bolts.

Preferably, the movable groove is positioned above the groove, and the movable groove is communicated with the groove.

Preferably, the left side of the sealing plug is fixedly connected with the right side of the spring.

Preferably, the bottom of slider is provided with trades solid fixed ring, connecting rod and solid fixed ring swing joint, the one end and the connecting seat swing joint of slider are kept away from to the connecting rod, the round hole has been seted up in the front of connecting seat, the one end and the round hole swing joint of slider are kept away from to the connecting rod.

Compared with the prior art, the utility model provides a damping slowly-closing check valve foundry goods possesses following beneficial effect:

1. the damping slow-closing check valve casting is communicated with the movable groove through the groove, the valve cover is in lap joint with the movable groove, so that the water flow flows into the movable groove from the groove and generates impact on the damping piston on the left side in the movable groove, thereby causing the damping piston on the left side to move to the right, and pushing the piston rod to the right, thereby causing the damping piston on the right side to move to the right, and pushes the spring out of the movable groove, when the water pump is closed, the valve clack is automatically closed under the action of the gravity of the hand, thereby the bottom of the valve clack is lapped with the sealing plug at the right side of the spring, the valve clack is buffered by the spring, thereby avoiding the generation of water hammer, effectively protecting the valve clack and the valve body, the device is through mutually supporting of damping piston, piston rod, cylinder body and spring to reduce the striking of valve clack and valve body, effectual valve clack and the valve body of having protected, and increased the life of valve clack and valve body.

2. This damping slow-closing type check valve foundry goods through the relation of connection between valve clack, connecting seat, connecting rod, slider and the spout for the valve clack is opened under the influence that receives rivers, and upwards rotates, thereby makes the connecting rod be close to the one end rebound of connecting seat, makes the connecting rod keep away from the one end of connecting seat simultaneously and drives the slider and move right together, because of the slider is located inside the spout always, thereby has increased the stability when valve clack rotates.

Drawings

FIG. 1 is a front view of the cross-sectional view of the present invention;

FIG. 2 is an enlarged view of the structure A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure B in FIG. 1 according to the present invention;

fig. 4 is a schematic view of the structure of the connecting rod of the present invention.

Wherein: 1. a valve body; 2. a valve cavity; 3. a valve cover; 4. a water inlet; 5. a water outlet; 6. a pin shaft; 7. a rocker; 8. a valve flap; 9. a seal ring; 10. a connecting seat; 11. a movable groove; 12. a groove; 13. a cylinder body; 14. a piston rod; 15. a damping piston; 16. a spring; 17. a sealing plug; 18. a chute; 19. a slider; 20. a connecting rod.

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.

Referring to fig. 1-4, a damping slow-closing type check valve casting comprises a valve body 1, a valve cavity 2 is arranged inside the valve body 1, a valve cover 3 is fixedly installed at the top of the valve body 1, the valve cover 3 is fixedly installed at the top of the valve body 1 through bolts, a water inlet 4 is arranged at the left side of the valve body 1, a water outlet 5 is arranged at the right side of the valve body 1, when the check valve is opened, water flows into the valve cavity 2 through the water inlet 4 and flows out of the water outlet 5, a pin shaft 6 is fixedly connected inside the valve cavity 2, a rocker 7 is movably connected to the side surface of the pin shaft 6, a valve flap 8 is fixedly connected to the left side of one end, away from the pin shaft 6, of the rocker 7, when the valve flap 8 is impacted by the water flow, the rocker 7 at the top of the right side of the valve flap 8 rotates with the pin shaft 6, the left side of the valve clack 8 is fixedly connected with a sealing ring 9, the sealing effect between the valve clack 8 and the valve body 1 is increased through the sealing ring 9, the sealing performance of the check valve is further improved, the right side of the valve clack 8 is fixedly connected with a connecting seat 10, the inner side wall of the valve cavity 2 is provided with a movable groove 11, the inner side wall of the valve cavity 2 is provided with a groove 12, the movable groove 11 is positioned above the groove 12, the movable groove 11 is communicated with the groove 12, the inside of the movable groove 11 is fixedly connected with a cylinder body 13, the inside of the cylinder body 13 is movably connected with a piston rod 14, the piston rod 14 penetrates through the left side and the right side of the cylinder body 13, the left end and the right end of the piston rod 14 are both fixedly connected with a damping piston 15, the right side of the damping piston 15 is fixedly connected with a spring 16, the right side of, the left side of the sealing plug 17 is fixedly connected with the right side of the spring 16, when water enters the interior of the valve cavity 2, a part of water flows into the interior of the groove 12, because the groove 12 is communicated with the movable groove 11, the water flows into the left side of the movable groove 11 from the groove 12, and the left damping piston 15 in the interior of the movable groove 11 is pushed rightwards, so that the piston rod 14 is pushed rightwards and moves rightwards from the interior of the cylinder body 13, and the right damping piston 15 moves rightwards, and the spring 16 and the sealing plug 17 are pushed out of the interior of the movable groove 11, so that the right damping piston 15 is lapped with the right side wall of the movable groove 11, and the water is prevented from entering from the notch of the movable groove 11, the inner side wall of the valve body 1 is provided with a sliding groove 18, the interior of the sliding groove 18 is movably connected with a sliding block 19, the bottom, connecting rod 20 and solid fixed ring swing joint, connecting rod 20 keeps away from slider 19's one end and connecting seat 10 swing joint, the round hole has been seted up in the front of connecting seat 10, connecting rod 20 keeps away from slider 19's one end and round hole swing joint, valve clack 8 is when doing anticlockwise rotation, make connecting seat 10 move up, and drive connecting rod 20 and be close to the one end rebound of connecting seat 10, thereby make connecting rod 20 keep away from the one end of connecting seat 10 and drive slider 19 together and move right, be located spout 18 inside because of slider 19, thereby stability when valve clack 8 removed has been increased.

When the water pump is used, the water pump is started, so that water flows through the water inlet 4 and impacts the valve clack 8, the valve clack 8 is opened, the valve clack 8 is upwards rotated through the rotating connection of the rocker 7 and the pin shaft, one end, close to the connecting seat 10, of the connecting rod 20 is upwards moved, one end, far away from the connecting seat 10, of the connecting rod 20 drives the sliding block 19 to move rightwards, the sliding block 19 is always located inside the sliding groove 18, the valve clack 8 can stably upwards rotate, so that the water flows into the valve cavity 2 through the water inlet 4 and flows out of the water outlet 5, when the water flows inside the valve cavity 2, a part of the water flows into the groove 12 and flows into the movable groove 11 through the groove 12, and impacts the damping piston 15 on the left side inside the movable groove 11 to move rightwards, and the piston rod 14 is moved rightwards in the cylinder 13, so as to push the right damping piston 15 to also move rightwards, and the spring 16 and the sealing plug 17 on the right side of the right damping piston 15 are positioned outside the movable groove 11, when the water pump is closed, the valve clack 8 makes the valve clack 8 rotate downwards by using the gravity of the valve clack 8 and the water back-drawing force and approach to the water inlet 4 of the valve body 1, when the valve clack 8 rotates downwards, one end of the connecting rod 20 close to the connecting seat 10 also moves downwards, so that the slide block 19 in the sliding groove 18 moves leftwards, the downward rotating speed of the valve clack 8 is reduced, when the valve clack 8 approaches the valve body 1, the bottom on the left side of the valve clack 8 collides with the sealing plug 17, the sealing plug 8 is reduced by the spring 16 on the left side of the valve clack 17, and the sealing plug 17 is plugged back, at the same time, the spring 16, the damping piston 15 and the piston rod 14 are moved together to the left, so that the valve flap 8 is prevented from colliding with the valve body 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a damping slowly closes formula check valve foundry goods, includes valve body (1), its characterized in that: the valve cavity (2) is formed in the valve body (1), the valve cover (3) is fixedly mounted at the top of the valve body (1), the water inlet (4) is formed in the left side of the valve body (1), the water outlet (5) is formed in the right side of the valve body (1), the pin shaft (6) is fixedly connected in the valve cavity (2), the side surface of the pin shaft (6) is movably connected with a rocker (7), the left side, far away from one end of the pin shaft (6), of the rocker (7) is fixedly connected with a valve clack (8), the left side of the valve clack (8) is fixedly connected with a sealing ring (9), the right side of the valve clack (8) is fixedly connected with a connecting seat (10), a movable groove (11) is formed in the inner side wall of the valve cavity (2), a groove (12) is formed in, the inside swing joint of cylinder body (13) has piston rod (14), the equal fixedly connected with damping piston (15) in both ends about piston rod (14), right side the right side fixedly connected with spring (16) of damping piston (15), the right side swing joint of activity groove (11) has sealing plug (17), spout (18) have been seted up to the inside wall of valve body (1), the inside swing joint of spout (18) has slider (19), the bottom swing joint of slider (19) has connecting rod (20).

2. The damped soft closed check valve casting of claim 1, wherein: the valve clack (8) is lapped with the inner side wall of the valve body (1), and the side surface of the sealing ring (9) is attached to the inner side wall of the water inlet (4).

3. The damped soft closed check valve casting of claim 1, wherein: the valve cover (3) is fixedly installed at the top of the valve body (1) through bolts.

4. The damped soft closed check valve casting of claim 1, wherein: the movable groove (11) is positioned above the groove (12), and the movable groove (11) is communicated with the groove (12).

5. The damped soft closed check valve casting of claim 1, wherein: the left side of the sealing plug (17) is fixedly connected with the right side of the spring (16).

6. The damped soft closed check valve casting of claim 1, wherein: the bottom of slider (19) is provided with trades solid fixed ring, connecting rod (20) and solid fixed ring swing joint, the one end and connecting seat (10) swing joint of slider (19) are kept away from in connecting rod (20), the round hole has been seted up in the front of connecting seat (10), the one end and the round hole swing joint of slider (19) are kept away from in connecting rod (20).