CN217003247U

CN217003247U - Novel check valve that leakproofness is strong

Info

Publication number: CN217003247U
Application number: CN202220810584.9U
Authority: CN
Inventors: 胥勇志
Original assignee: Yaoxin Tianjin Fluid Control Equipment Co ltd
Current assignee: Yaoxin Tianjin Fluid Control Equipment Co ltd
Priority date: 2022-04-09
Filing date: 2022-04-09
Publication date: 2022-07-19
Anticipated expiration: 2032-04-09

Abstract

The utility model relates to the technical field of valves, in particular to a novel check valve with high sealing performance. The technical scheme comprises the following steps: the improved water-saving valve comprises a valve body and a pipe body, wherein a first through hole is formed in the middle of the valve body, a pressing plate is arranged at the top of the first through hole, a connecting rod is fixedly connected to the top of the pressing plate, a groove is formed in the top of the valve body, a first spring is arranged inside the groove, a second through hole is formed in the middle of the pipe body, a baffle is arranged on one side, close to the valve body, of the second through hole, a supporting rod is fixedly mounted on one side, located in the second through hole, of the pipe body, and a second spring is sleeved on the surface of the supporting rod. According to the utility model, through the arrangement of the pipe body, the second through hole, the baffle, the support rod and the second spring, when the valve body reflows, the second spring can apply elastic force to the baffle, so that the baffle blocks the second through hole, the reflowing phenomenon is further avoided, the reliability of the check valve is improved, and the use effect is improved.

Description

Novel check valve that leakproofness is strong

Technical Field

The utility model relates to the technical field of valves, in particular to a novel check valve with high sealing performance.

Background

The check valve is a valve whose opening and closing piece is a circular valve clack and can be operated by its self-weight and medium pressure to block back flow of medium. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The motion mode of the valve clack is divided into a lifting type and a swing type.

At present, most of existing check valves are single in structure, the sealing performance is easy to reduce after long-time use, the reliability is reduced, and the using effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel check valve with strong sealing performance aiming at the problems in the background technology.

The technical scheme of the utility model is as follows: the utility model provides a novel check valve that leakproofness is strong, includes the valve body and installs the body of valve body entry end, the middle part of valve body is provided with first through-hole, the top of first through-hole is provided with the clamp plate, the top fixedly connected with connecting rod of clamp plate, the top of valve body is seted up flutedly, peg graft in the recess in the upper end of connecting rod, the inside of recess is provided with first spring, the middle part of body is provided with the second through-hole, one side that the second through-hole is close to the valve body is provided with the baffle, one side fixed mounting that the body is inside to be located the second through-hole has the bracing piece, the baffle slides and cup joints on the bracing piece, the second spring has been cup jointed on the surface of bracing piece, the equal fixedly connected with in surface of clamp plate and baffle is sealed.

Through the valve body, first through-hole, the clamp plate, the connecting rod, the setting of recess and first spring, when backward flow water pressure is too big, first spring can apply elasticity to the connecting rod, make the connecting rod drive the clamp plate downstream, make the clamp plate press at first through-hole top, carry out the shutoff to first through-hole, reach the effect of non return, through the body, the second through-hole, the baffle, the setting of bracing piece and second spring, when the backward flow appears in the valve body, the second spring can apply elasticity to the baffle, make the baffle block up the one side in the second through-hole, carry out the shutoff to the second through-hole, further avoid the backward flow phenomenon, improve the reliability of check valve, improve the result of use, through the setting of sealed pad, can improve the sealed effect of clamp plate and baffle.

Preferably, valve body and body pass through a fastening bolt fixed mounting, through a fastening bolt's setting, conveniently carry out the dismouting to valve body and body.

Preferably, the joint of the valve body and the pipe body is provided with a sealing ring, and the joint of the valve body and the pipe body can be sealed through the sealing ring.

Preferably, the top of valve body has the apron through second fastening bolt fixed mounting, through the setting of apron, conveniently maintains first spring.

Preferably, the entry end of body is provided with the filter screen, through the setting of filter screen, can filter the impurity of aquatic, reduces the condition that the valve body blockked up, extension valve body life.

Preferably, the limiting groove has been seted up to the inside wall of recess, the upper end fixedly connected with stopper of connecting rod, stopper sliding connection can play limiting displacement to the connecting rod through the cooperation of limiting groove and stopper in the limiting groove, improves the stability of connecting rod.

Compared with the prior art, the utility model has the following beneficial technical effects:

the novel check valve that the leakproofness is strong passes through the valve body, first through-hole, the clamp plate, the connecting rod, the setting of recess and first spring, when backward flow water pressure is too big, first spring can apply elasticity to the connecting rod, make the connecting rod drive the clamp plate downstream, make the clamp plate press at first through-hole top, carry out the shutoff to first through-hole, reach the effect of non return, through the body, the second through-hole, the baffle, the setting of bracing piece and second spring, when the backward flow appears in the valve body, the second spring can apply elasticity to the baffle, make the baffle block up the one side in the second through-hole, block up the second through-hole, further avoid the backward flow phenomenon, improve the reliability of check valve, the use effect is improved, through the setting of sealed pad, the sealed effect of clamp plate and baffle can be improved.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an internal structural view of the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2A according to the present invention;

fig. 4 is an enlarged view of the structure at B in fig. 2 according to the present invention.

Reference numerals: 1. a valve body; 2. a pipe body; 3. a first through hole; 4. pressing a plate; 5. a connecting rod; 6. a groove; 7. a first spring; 8. a second through hole; 9. a baffle plate; 10. a support bar; 11. a second spring; 12. a gasket; 13. a first fastening bolt; 14. a seal ring; 15. a second fastening bolt; 16. a cover plate; 17. filtering with a screen; 18. a limiting groove; 19. and a limiting block.

Detailed Description

The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.

Example one

As shown in figures 1, 2, 3 and 4, the novel check valve with strong sealing performance comprises a valve body 1 and a pipe body 2 arranged at the inlet end of the valve body 1, wherein a first through hole 3 is formed in the middle of the valve body 1, a pressing plate 4 is arranged at the top of the first through hole 3, a connecting rod 5 is fixedly connected to the top of the pressing plate 4, a groove 6 is formed in the top of the valve body 1, the upper end of the connecting rod 5 is inserted into the groove 6, a first spring 7 is arranged inside the groove 6, a second through hole 8 is formed in the middle of the pipe body 2, a baffle plate 9 is arranged on one side, close to the valve body 1, of the second through hole 8, a supporting rod 10 is fixedly arranged on one side, located in the second through hole 8, of the pipe body 2, the baffle plate 9 is slidably sleeved on the supporting rod 10, a second spring 11 is sleeved on the surface of the supporting rod 10, sealing gaskets 12 are fixedly connected to the surfaces of the pressing plate 4 and the baffle plate 9, and the valve body 1 and the pipe body 2 are fixedly arranged through a first fastening bolt 13, the junction of valve body 1 and body 2 is provided with sealing washer 14, and there is apron 16 at the top of valve body 1 through second fastening bolt 15 fixed mounting, and the entry end of body 2 is provided with filter screen 17.

The working principle of the novel check valve with strong sealing performance based on the embodiment 1 is as follows: through the arrangement of the valve body 1, the first through hole 3, the pressing plate 4, the connecting rod 5, the groove 6 and the first spring 7, when the backflow water pressure is too high, the first spring 7 can apply elasticity to the connecting rod 5, so that the connecting rod 5 drives the pressing plate 4 to move downwards, the pressing plate 4 is pressed on the top of the first through hole 3, the first through hole 3 is blocked, and the non-return effect is achieved, through the arrangement of the valve body 2, the second through hole 8, the baffle 9, the supporting rod 10 and the second spring 11, when the backflow occurs in the valve body 1, the second spring 11 can apply elasticity to the baffle 9, so that the baffle 9 is blocked on one side of the second through hole 8, and the second through hole 8 is blocked, further the backflow phenomenon is avoided, the reliability of the check valve is improved, the use effect is improved, through the arrangement of the sealing gasket 12, the sealing effect of the pressing plate 4 and the baffle 9 can be improved, through the arrangement of the first fastening bolt 13, the valve body 1 and the pipe body 2 are convenient to be disassembled, through the setting of sealing washer 14, can play sealed effect to the junction of valve body 1 and body 2, through the setting of apron 16, conveniently maintain first spring 7, through the setting of filter screen 17, can filter the impurity of aquatic, reduce the condition that valve body 1 blockked up, extension valve body 1 life.

Example two

As shown in fig. 4, compared with the first embodiment, the present invention provides a novel check valve with strong sealing performance, and the embodiment further includes: spacing groove 18 has been seted up to the inside wall of recess 6, and the upper end fixedly connected with stopper 19 of connecting rod 5, stopper 19 sliding connection are in spacing groove 18.

In this embodiment, through the cooperation of spacing groove 18 and stopper 19, can play limiting displacement to connecting rod 5, improve connecting rod 5's stability.

The above embodiments are merely some preferred embodiments of the present invention, and those skilled in the art can make various alternative modifications and combinations of the above embodiments based on the technical solution of the present invention and the related teaching of the above embodiments.

Claims

1. The utility model provides a novel check valve that leakproofness is strong, includes valve body (1) and installs body (2) of valve body (1) entry end, its characterized in that: a first through hole (3) is arranged in the middle of the valve body (1), a pressing plate (4) is arranged at the top of the first through hole (3), the top of the pressure plate (4) is fixedly connected with a connecting rod (5), the top of the valve body (1) is provided with a groove (6), the upper end of the connecting rod (5) is inserted in the groove (6), a first spring (7) is arranged in the groove (6), a second through hole (8) is arranged in the middle of the pipe body (2), a baffle plate (9) is arranged on one side of the second through hole (8) close to the valve body (1), a support rod (10) is fixedly arranged at one side of the second through hole (8) in the pipe body (2), the baffle (9) is sleeved on the support rod (10) in a sliding manner, the surface of the support rod (10) is sleeved with a second spring (11), the surfaces of the pressure plate (4) and the baffle (9) are fixedly connected with sealing gaskets (12).

2. The new type check valve with high sealing performance as claimed in claim 1, wherein: the valve body (1) and the pipe body (2) are fixedly installed through a first fastening bolt (13).

3. The new type check valve with high sealing performance as claimed in claim 2, wherein: and a sealing ring (14) is arranged at the joint of the valve body (1) and the pipe body (2).

4. The new type check valve with high sealing performance as claimed in claim 1, wherein: and a cover plate (16) is fixedly arranged at the top of the valve body (1) through a second fastening bolt (15).

5. The new type check valve with strong sealing performance as claimed in claim 1, wherein: the inlet end of the pipe body (2) is provided with a filter screen (17).

6. The new type check valve with high sealing performance as claimed in claim 1, wherein: spacing groove (18) have been seted up to the inside wall of recess (6), the upper end fixedly connected with stopper (19) of connecting rod (5), stopper (19) sliding connection is in spacing groove (18).