CN216843272U

CN216843272U - Novel butterfly check valve with built-in damper

Info

Publication number: CN216843272U
Application number: CN202123131542.7U
Authority: CN
Inventors: 肖羽白; 吴园园; 阎玲
Original assignee: TIELING LIANGGONG VALVE CO LTD
Current assignee: TIELING LIANGGONG VALVE CO LTD
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-06-28
Anticipated expiration: 2031-12-14

Abstract

The utility model discloses a novel butterfly check valve with a built-in damper, which comprises a butterfly check valve body and a built-in damper, wherein the built-in damper is fixedly arranged in the butterfly check valve body, the utility model relates to the technical field of the butterfly check valve, the utility model can avoid the oil injection through the arrangement of the built-in damper, water is flushed into a cylinder body through a second small ball compressing a third spring in the medium flowing process to be used as a damping medium, when the water flow stops, the second small ball seals a water inlet through the elasticity of the third spring, the water is sealed in the built-in damper, the pollution caused by leakage when the oil is used as the medium can be avoided, the built-in damper has small volume, is placed in a valve body without occupying space, only a throttle nut is needed to be adjusted, the buffer function can be realized, the built-in damper has the function of noise elimination and slow closing, the damping of the closing motion of the valve plate in the butterfly check valve body can be realized, the slow-closing silencing of the valve is guaranteed, noise is reduced, the buffering effect is good, and the service life of the valve is prolonged.

Description

Novel butterfly check valve with built-in damper

Technical Field

The utility model relates to a butterfly check valve technical field, concrete field is a novel butterfly check valve of built-in attenuator.

Background

The butterfly check valve is a valve that automatically opens and closes a valve flap depending on the flow of a medium itself to prevent the backflow of the medium, and is also called a check valve, a reverse flow valve, and a back pressure valve. The check valve is an automatic valve and mainly used for preventing medium from flowing backwards, preventing the pump and a driving motor from reversing and discharging container medium. Check valves may also be used to provide make-up lines to auxiliary systems where the pressure may rise above the system pressure. The check valves may be mainly classified into swing check valves (rotating according to the center of gravity), lift check valves (moving along an axis), and butterfly check valves (rotating along the center).

The motion stability of the existing butterfly check valve is poor, the noise elimination effect and the buffering effect are poor, the service life of the butterfly check valve is shortened, and therefore the novel butterfly check valve with the built-in damper is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel butterfly check valve of built-in attenuator to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a novel butterfly check valve with a built-in damper comprises a butterfly check valve body and the built-in damper, wherein the built-in damper is fixedly arranged in the butterfly check valve body and consists of a piston, a first spring seat, a first spring, a first small ball, a cylinder cover, a connecting seat, a second spring seat, a third spring, a second small ball, a cylinder body, a throttle valve screw rod and a throttle valve nut, a through hole is formed in the piston, the first spring seat is fixedly embedded in the through hole of the piston, the first spring is positioned in the spring seat, one end of the first spring is fixedly connected with one side in the first spring seat, the first small ball is fixedly connected with the other end of the first spring, the cylinder cover is fixedly connected with the outer side of the piston, the connecting seat is fixedly connected with the cylinder cover, grooves are formed in one side in the connecting seat and one side of the piston close to the connecting seat, the two ends of the second spring are respectively and fixedly embedded in grooves of the connecting seat and the piston, a water inlet is formed in the left side of the connecting seat, the water inlet is located below the second spring, the second spring seat is fixedly embedded in a water inlet of the connecting seat, one end of the third spring is fixedly connected with the second spring seat, the second small ball is fixedly connected with the other end of the third spring, the cylinder body is fixedly arranged at the outer bottom of the connecting seat, the throttle valve screw rod is connected with the cylinder body and the bottom of the connecting seat, and the throttle valve nut is in spiral connection with the throttle valve screw rod.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a novel butterfly check valve of built-in attenuator, the utility model discloses a setting of built-in attenuator need not be at the oiling, water passes through second bobble compression third spring and dashes into the cylinder body as the damping medium in the medium flow in-process, the water inlet is sealed to the elasticity that the second bobble passes through the third spring when rivers stop, with water-tight in built-in attenuator.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic structural view of the built-in damper of the present invention;

FIG. 3 is an enlarged view of the position A in FIG. 2;

fig. 4 is an enlarged structural diagram of a position B in fig. 2.

In the figure: 1. a damper is arranged inside; 101. a piston; 102. a first spring seat; 103. a first spring; 104. A first pellet; 105. a cylinder cover; 106. a connecting seat; 107. a second spring; 108. a second spring seat; 109. a third spring; 110. a second pellet; 111. a cylinder body; 112. a throttle valve screw; 113. a throttle valve nut; 2. butterfly check valve body.

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, the present invention provides a technical solution of a novel butterfly check valve with a built-in damper: a novel butterfly check valve with a built-in damper comprises a butterfly check valve body 2 and the built-in damper 1, wherein the built-in damper 1 is fixedly arranged in the butterfly check valve body 2, the built-in damper 1 consists of a piston 101, a first spring seat 102, a first spring 103, a first small ball 104, a cylinder cover 105, a connecting seat 106, a second spring 107, a second spring seat 108, a third spring 109, a second small ball 110, a cylinder body 111, a throttle valve screw 112 and a throttle valve nut 113, a through hole is formed in the piston 101, the first spring seat 102 is fixedly embedded in the through hole of the piston 101, the first spring 103 is positioned in the first spring seat 102, one end of the first spring 103 is fixedly connected with one side in the first spring seat 102, the first small ball 104 is fixedly connected with the other end of the first spring 103, the cylinder cover 105 is fixedly connected with the outer side of the piston 101, the connecting seat 106 is fixedly connected with the cylinder cover 105, one side in the connecting seat 106 and one side of the piston 101 close to the connecting seat 106 are both provided with a groove, two ends of the second spring 107 are respectively and fixedly embedded in the grooves of the connecting seat 106 and the piston 101, the left side of the connecting seat 106 is provided with a water inlet, the water inlet is positioned below the second spring 107, the second spring 107 is fixedly embedded in the water inlet of the connecting seat 106, one end of the third spring 109 is fixedly connected with the second spring seat 108, the second small ball 110 is fixedly connected with the other end of the third spring 109, the cylinder body 111 is fixedly arranged at the outer bottom of the connecting seat 106, the throttle screw 112 is connected with the cylinder body 111 and the bottom of the connecting seat 106, and the throttle nut 113 is in threaded connection with the throttle screw 112.

The working principle is as follows: the utility model discloses a setting of built-in attenuator 1 need not be in the oiling, flow in-process water at the medium and rush into cylinder body 111 as the damping medium through second bobble 110 compression third spring 109, second bobble 110 seals the water inlet through the elasticity of third spring 109 when rivers stop, with water-tight in built-in attenuator 1, can avoid leaking the pollution that causes when using oil as the medium, and built-in attenuator 1 is small, place and do not account for the space in the valve body, only need adjust throttle nut 113, just can realize buffer function.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

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 novel butterfly check valve of built-in attenuator, includes butterfly check valve body (2) and built-in attenuator (1), its characterized in that: the butterfly check valve is characterized in that a built-in damper (1) is fixedly arranged in the butterfly check valve body (2), the built-in damper (1) is composed of a piston (101), a first spring seat (102), a first spring (103), a first small ball (104), a cylinder cover (105), a connecting seat (106), a second spring (107), a second spring seat (108), a third spring (109), a second small ball (110), a cylinder body (111), a throttle valve screw (112) and a throttle valve nut (113), a through hole is formed in the piston (101), the first spring seat (102) is fixedly embedded in the through hole of the piston (101), the first spring (103) is located in the first spring seat (102), one end of the first spring (103) is fixedly connected with one side in the first spring seat (102), and the first small ball (104) is fixedly connected with the other end of the first spring (103), the cylinder cover (105) is fixedly connected with the outer side of the piston (101), the connecting seat (106) is fixedly connected with the cylinder cover (105), grooves are formed in one side in the connecting seat (106) and one side, close to the connecting seat (106), of the piston (101), two ends of the second spring (107) are fixedly embedded in the grooves of the connecting seat (106) and the piston (101) respectively, a water inlet is formed in the left side of the connecting seat (106) and is located below the second spring (107), the seat of the second spring (107) is fixedly embedded in the water inlet of the connecting seat (106), one end of the third spring (109) is fixedly connected with the second spring seat (108), the second small ball (110) is fixedly connected with the other end of the third spring (109), the cylinder body (111) is fixedly arranged at the outer bottom of the connecting seat (106), and the throttle valve screw (112) is connected with the cylinder body (111) and the bottom of the connecting seat (106), the throttle valve nut (113) is in threaded connection with the throttle valve screw (112).