CN213575739U

CN213575739U - Connect vertical check valve that leakproofness is good

Info

Publication number: CN213575739U
Application number: CN202022022500.9U
Authority: CN
Inventors: 何振祥; 徐贤允; 吴成文
Original assignee: SHANGHAI TEYI VALVE MANUFACTURING CO LTD
Current assignee: SHANGHAI TEYI VALVE MANUFACTURING CO LTD
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-06-29
Anticipated expiration: 2030-09-16

Abstract

The utility model provides a vertical check valve with good connection and sealing performance, which relates to the technical field of check valves and comprises a valve body, a lower flange is fixedly arranged at the bottom of the valve body, an upper flange is fixedly arranged at the top of the valve body, the top of the inner wall of the valve body is fixedly provided with a bracket, the top and the bottom of the valve body are respectively provided with an upper flange and a lower flange, and the inner parts of the upper flange and the lower flange are respectively provided with an upper flange gasket and a lower flange gasket with better sealing performance, the auxiliary rod and the spring traction rod synchronously slide to ensure that the valve core slides in parallel and fluid does not leak, when fluid enters the lower flange, the resistance pushes the bottom of the valve core, the concave structures at the top and the bottom of the valve core can increase the stress area, the fluid can enter the valve body, when the lower flange stops water inflow, the top of the valve core is stressed to stop the fluid, and the phenomenon of fluid backflow cannot occur.

Description

Connect vertical check valve that leakproofness is good

Technical Field

The utility model relates to a check valve technical field especially relates to a connect vertical check valve that leakproofness is good.

Background

The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve.

When the existing vertical check valve is used, because the flow of fluid is uneven, the valve core deviates when being opened and closed, the sliding is unbalanced, the position can not be accurately fixed, the sealing accuracy is not high, the fluid flows back, the connection pipeline system can be damaged and rusted, and the air environment can be polluted due to the fluid leakage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, ensuring the parallel motion when the valve core is opened and closed, and ensuring the difficult leakage of fluid.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a connect vertical check valve that leakproofness is good, includes the valve body, the bottom fixed mounting of valve body has the lower flange, the inner wall bottom fixed mounting of valve body has the disk seat, and the top fixed mounting of disk seat has the gasket, the top fixed mounting of valve body has the upper flange, the inner wall top fixed mounting of valve body has the support, and the lower extreme fixed mounting of support has the spacing ring, the inside of spacing ring slides to run through there is the spring traction lever, and the surface cover of spring traction lever is equipped with the spring, the top welding of spring is in the bottom of spacing ring, the bottom welded fastening piece's of spring top, the top of spring traction lever slides to run through there is the fixed plate, and the center department of fixed plate has seted up the trompil, the inside fixed mounting.

Preferably, a lower flange gasket is fixedly mounted inside the lower flange, a fluid inlet is formed inside the lower flange, a connecting nut hole is formed in the steel ring on the outer side of the lower flange, and a connecting nut hole is formed inside the upper flange.

Preferably, an upper flange gasket is fixedly mounted inside the upper flange, and a fluid outlet is formed inside the upper flange.

Preferably, the bottom of the spring traction rod is fixedly provided with a fixed block, the lower end of the fixed block is fixedly provided with a valve core, and the bottom of the lower end of the valve core is fixedly provided with a sealing gasket.

Preferably, the both ends of fixed plate are close to the edge and have seted up the auxiliary rod trompil, and the inside slip of auxiliary rod trompil runs through there is the auxiliary rod, the bottom welding of auxiliary rod has the auxiliary rod fixed block, the fixed welding in bottom of auxiliary rod fixed block has the case, the top and the bottom of case are the indent structure.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this connect vertical check valve that leakproofness is good, last flange and lower flange are installed respectively to the top and the bottom of valve body to go up the inside of flange and lower flange and install the better last flange gasket of leakproofness and lower flange gasket respectively, go up flange gasket and lower flange gasket and adopt waterproof stand wear and tear material, can be that interface and lower interface leakproofness is good in the connecting tube.

2. The vertical check valve with good connection and sealing performance is characterized in that the support is arranged at the top of the inner wall of the valve body, the limiting ring fixed at the bottom of the support can limit the position of the spring traction rod, the position of the spring traction rod is not changed when the spring traction rod slides up and down, two auxiliary rods are arranged on two sides of the spring traction rod, the auxiliary rods and the spring traction rod slide synchronously, the parallel sliding of the valve core is ensured, fluid cannot leak, when fluid enters the lower flange, the bottom of the valve core is pushed by resistance, the concave structures at the top and the bottom of the valve core can increase the stress area, the spring on the fixed block at the top of the valve core springs upwards after receiving pressure to drive the valve core to move upwards, and when the sealing washer on the valve core leaves the gasket on the valve seat, the fluid can enter the valve body, when the lower flange stops water inflow, the top of the valve core is stressed to stop the fluid, and the phenomenon of fluid backflow cannot occur.

Drawings

FIG. 1 is a front view of a vertical check valve with good sealing performance;

FIG. 2 is a top view of the upper flange of the vertical check valve with good sealing performance;

fig. 3 is a front view of the spring traction rod of the vertical check valve with good connection sealing performance according to the present invention.

Illustration of the drawings:

1. a valve body; 2. a fluid inlet; 3. a lower flange; 4. a valve seat; 5. a gasket; 6. a fluid outlet; 7. An upper flange; 8. connecting nut holes; 9. a support; 10. a limiting ring; 11. a spring draw bar; 12. a fixed block; 13. a spring; 14. a fixing plate; 15. opening a hole; 16. opening a hole in the rubber ring; 17. an auxiliary lever; 18. An auxiliary rod fixing block; 19. a valve core; 20. a sealing gasket; 21. a lower flange gasket; 22. and an upper flange gasket.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 and 2, the utility model provides a connect vertical check valve that leakproofness is good, including valve body 1, the bottom fixed mounting of valve body 1 has lower flange 3, the inner wall bottom fixed mounting of valve body 1 has disk seat 4, and the top fixed mounting of disk seat 4 has gasket 5, the inside fixed mounting of lower flange 3 has lower flange gasket 21, fluid entry 2 has been seted up to the inside of lower flange 3, coupling nut hole 8 has been seted up on the outside steel ring of lower flange 3, coupling nut hole 8 has been seted up to the inside of upper flange 7, the inside fixed mounting of upper flange 7 has last coupling gasket 22, fluid outlet 6 has been seted up to the inside of upper flange 7.

The effect that its whole embodiment 1 reached is, upper flange 7 and lower flange 3 are installed respectively to the top and the bottom of valve body 1 to the inside of upper flange 7 and lower flange 3 installs better upper flange gasket 22 of leakproofness and lower flange gasket 21 respectively, and upper flange gasket 22 and lower flange gasket 21 adopt waterproof wear-resisting material, can be that upper connector 7 and lower connector 3 are good in the leakproofness when connecting the pipeline.

In embodiment 2, as shown in fig. 2 and 3, an upper flange 7 is fixedly installed at the top of a valve body 1, a bracket 9 is fixedly installed at the top of the inner wall of the valve body 1, a limiting ring 10 is fixedly installed at the lower end of the bracket 9, a spring traction rod 11 penetrates through the limiting ring 10 in a sliding manner, a spring 13 is sleeved on the outer surface of the spring traction rod 11, the top of the spring 13 is welded at the bottom of the limiting ring 10, the bottom of the spring 13 is welded at the top of a fixing block 12, a fixing plate 14 is slidably installed at the top of the spring traction rod 11, a hole 15 is formed in the center of the fixing plate 14, a hole rubber ring 16 is fixedly installed inside the hole 15, a fixing block 12 is fixedly installed at the bottom of the spring traction rod 11, a valve core 19 is fixedly installed at the lower end of the fixing block 12, a sealing washer 20, an auxiliary rod 17 penetrates through the inside of the auxiliary rod hole in a sliding mode, an auxiliary rod fixing block 18 is welded at the bottom of the auxiliary rod 17, a valve core 19 is fixedly welded at the bottom of the auxiliary rod fixing block 18, and the top and the bottom of the valve core 19 are of concave structures.

The whole embodiment 2 has the effects that the support 9 is arranged at the top of the inner wall of the valve body 1, the spring traction rod 11 can be limited by the limiting ring 10 fixed at the bottom of the support 9, the position of the spring traction rod 11 is not changed when the spring traction rod 11 slides up and down, two auxiliary rods 17 are arranged at two sides of the spring traction rod 11, the auxiliary rods 17 and the spring traction rod 11 slide synchronously, the valve core 19 is ensured to slide in parallel, fluid cannot leak, when the fluid enters the lower flange 3, the bottom of the valve core 19 is pushed by resistance, the stress area can be increased by the concave structures at the top and the bottom of the valve core 19, the spring 13 on the fixed block 12 at the top of the valve core 19 is sprung after receiving pressure to drive the valve core 19 to move upwards, when the sealing gasket 20 on the valve core 19 leaves the gasket 5 on the valve seat 4, the fluid can enter the valve body 1, when the lower flange 3 stops water inflow, the phenomenon of fluid backflow does not occur.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a connect vertical check valve that leakproofness is good, includes valve body (1), its characterized in that: the bottom of the valve body (1) is fixedly provided with a lower flange (3), the bottom of the inner wall of the valve body (1) is fixedly provided with a valve seat (4), a gasket (5) is fixedly arranged at the top end of the valve seat (4), an upper flange (7) is fixedly arranged at the top of the valve body (1), a support (9) is fixedly arranged at the top of the inner wall of the valve body (1), a limit ring (10) is fixedly arranged at the lower end of the support (9), a spring draw bar (11) penetrates through the inside of the limit ring (10) in a sliding manner, a spring (13) is sleeved on the outer surface of the spring draw bar (11), the top of the spring (13) is welded at the bottom of the limit ring (10), the top of a bottom welding block (12) of the spring (13) penetrates through a fixing plate (14) at the top of the spring draw bar (11), and a hole (15) is, and a perforated rubber ring (16) is fixedly arranged in the perforated hole (15).

2. The vertical check valve with good connection sealing performance as claimed in claim 1, wherein: the novel flange is characterized in that a lower flange gasket (21) is fixedly mounted inside the lower flange (3), a fluid inlet (2) is formed in the lower flange (3), a connecting nut hole (8) is formed in an outer steel ring of the lower flange (3), and a connecting nut hole (8) is formed in the upper flange (7).

3. The vertical check valve with good connection sealing performance as claimed in claim 1, wherein: an upper flange gasket (22) is fixedly mounted inside the upper flange (7), and a fluid outlet (6) is formed inside the upper flange (7).

4. The vertical check valve with good connection sealing performance as claimed in claim 1, wherein: the spring traction rod is characterized in that a fixed block (12) is fixedly mounted at the bottom of the spring traction rod (11), a valve core (19) is fixedly mounted at the lower end of the fixed block (12), and a sealing gasket (20) is fixedly mounted at the bottom of the lower end of the valve core (19).

5. The vertical check valve with good connection sealing performance as claimed in claim 4, wherein: the utility model discloses a valve core, including fixed plate (14), auxiliary rod trompil, auxiliary rod fixed block (18), the fixed welding in bottom of auxiliary rod fixed block (18) has case (19), the top and the bottom of case (19) are the indent structure, and the auxiliary rod trompil has been seted up near the edge at the both ends of fixed plate (14), and the inside slip of auxiliary rod trompil runs through has auxiliary rod (17), the welding in bottom of auxiliary rod.