CN218670776U

CN218670776U - Swing check valve structure

Info

Publication number: CN218670776U
Application number: CN202223073829.3U
Authority: CN
Inventors: 魏明珍; 史庆泰; 杨玲玲; 魏明武
Original assignee: Quanhuiyou Fluid Technology Hubei Co ltd
Current assignee: Quanhuiyou Fluid Technology Hubei Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-03-21
Anticipated expiration: 2032-11-18

Abstract

The utility model provides a swing check valve structure, which comprises a valve body, be provided with the runner that is the T font and arranges in the valve body and the valve port of vertical setting, the upper reaches end and the low reaches end of runner can be dismantled with the pipeline and be connected, and the top of valve is provided with the valve gap, still includes supporting seat, rocker and valve clack, the fixed setting of supporting seat is in the valve port, the rocker articulates on the supporting seat, valve clack fixed mounting is in the free end of rocker, the valve clack is the disc and covers in the runner, the fluid of slow flow only needs less impact force just can continuously keep opening of valve clack, and it has solved lift check valve fluid resistance coefficient great relatively, needs the fluid to continuously overcome valve clack gravity, is not suitable for the fluid flow of slow flow, and the technical problem that the non return is not nimble enough has produced the fluid resistance coefficient and is low, uses more in the fluid application of slow flow beneficial effect that is more suitable for.

Description

Swing check valve structure

Technical Field

The utility model relates to the technical field of valves, especially, relate to a swing check valve structure.

Background

The function of the check valve is to allow the medium to flow in one direction only, but to prevent the reverse flow. Typically such valves are self-actuating, with the flap opening under the pressure of a fluid flowing in 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.

The valve clack of the lifting check valve is vertically arranged on the sealing surface of the valve body, fluid impacts the valve clack to enable the valve clack to overcome self gravity to vertically move upwards so as to enable fluid to pass through, the fluid resistance coefficient is relatively large, the fluid is required to continuously overcome the gravity of the valve clack, the lifting check valve is not suitable for slow-flow fluid flow, and the check is not flexible enough.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides a swing check valve structure, it is great relatively that it has solved the lift check valve fluid resistance coefficient that exists among the prior art, needs the fluid to continuously overcome valve clack gravity, is not suitable for the fluid flow of unhurried current, problem that the non return is nimble enough.

According to the utility model discloses an embodiment, a swing check valve structure, which comprises a valve body, be provided with the runner that is the T font and arrange in the valve body and the valve port of vertical setting, the upper reaches end and the low reaches end of runner can be dismantled with the pipeline and be connected, and the top of valve is provided with the valve gap, still includes supporting seat, rocker and valve clack, the supporting seat is fixed to be set up in the valve port, the rocker articulates on the supporting seat, valve clack fixed mounting be in the free end of rocker, the valve clack is the disc and covers in the runner.

The technical principle of the utility model is that: the fluid flows from the upstream end to the downstream end of the flow channel, when flowing through the valve clack, the fluid drives the valve clack to rotate around the hinge shaft of the valve clack, so that the valve clack is opened, the valve clack only needs relatively small fluid impact force to open, the valve clack can be continuously opened under the action of the slow-flow fluid, the fluid resistance coefficient is low, the use is more flexible, and the valve clack is more suitable for the application of the slow-flow fluid.

Compared with the prior art, the utility model discloses following beneficial effect has: the slowly flowing fluid can continuously keep the valve clack open only by small impact force, the technical problems that the fluid resistance coefficient of the lifting check valve is relatively large, the fluid is required to continuously overcome the gravity of the valve clack, the valve clack is not suitable for slowly flowing fluid flow, and the check is not flexible enough are solved, and the beneficial effects that the fluid resistance coefficient is low, the use is more flexible, and the valve clack is more suitable for slowly flowing fluid application are achieved.

Drawings

Fig. 1 is the embodiment of the utility model discloses a structural diagram dissects.

In the above drawings: the valve comprises a valve body 1, a flow passage 11, a valve port 12, a valve cover 13, a notch 14, a spherical part 15, a supporting seat 2, a fixed block 21, a fixed shaft 22, a torsion spring 23, a rocker 3, a valve clack 4, a backing ring 41 and a gravity block 42.

Detailed Description

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

As shown in fig. 1, the embodiment of the utility model provides a swing check valve structure, including valve body 1, be provided with the valve port 12 that is runner 11 and the vertical setting that the T font was arranged in the valve body 1, runner 11's upper reaches end and low reaches end can be dismantled with the pipeline and be connected, and optional flange dish is connected, and the top of valve is provided with valve gap 13, still includes supporting seat 2, rocker 3 and valve clack 4, and valve clack 4 uses copper or steel material, supporting seat 2 is fixed to be set up in the valve port 12, rocker 3 articulates on the supporting seat 2, valve clack 4 fixed mounting be in rocker 3's free end, valve clack 4 is the disc and cover in runner 11.

The specific working process is as follows: fluid flows from the upstream end to the downstream end of the flow channel 11, and when the fluid flows through the valve clack 4, the valve clack 4 is driven to rotate around a hinge shaft of the valve clack 4, so that the valve clack 4 is opened, the valve clack 4 only needs relatively small fluid impact force to open, the valve clack 4 can be continuously opened under the action of slow-flow fluid, the fluid resistance coefficient is low, the use is more flexible, and the valve clack is more suitable for slow-flow fluid application.

According to the utility model discloses a further embodiment, as shown in fig. 1, a swing check valve structure, supporting seat 2 includes fixed block 21 and fixed axle 22, fixed block 21 fixed connection be in on the inner wall of valve body 1, seted up on the fixed axle 22 with the recess of fixed block 21 joint, fixed axle 22 and fixed block 21 pass through bolt fixed connection, fixed axle 22's end is articulated with rocker 3, opens valve gap 13, is convenient for install and change convenient operation to supporting seat 2.

According to the utility model discloses a another embodiment, as shown in fig. 1, a swing check valve structure, the end of fixed axle 22 is crooked towards the upstream end of runner 11, the hinged end of rocker 3 is crooked towards the upstream end of runner 11, and through fixed axle 22 and rocker 3 crooked towards the runner 11 upper reaches, the center of rotation of valve clack 4 is closer to the front end of valve clack 4, makes the rotation opening force of valve clack 4 littleer, opens more in a flexible way.

According to another embodiment of the utility model, as shown in fig. 1, a swing check valve structure, the notch 14 with valve clack 4 matched with is seted up in the cooperation department of runner 11 and valve clack 4, makes valve clack 4 detain in notch 14 department when closing runner 11, improves the leakproofness of non return.

According to another embodiment of the present invention, as shown in fig. 1, a swing check valve structure, the valve flap 4 is fixedly connected with a rubber backing ring 41 matched with the notch 14, and the sealing performance of the valve flap 4 is better through the setting of the backing ring 41.

According to the utility model discloses a further embodiment, as shown in fig. 1, a swing check valve structure, valve clack 4 passes through bolt fixed connection with rocker 3, the cover is equipped with gravity piece 42 on the bolt, increases the gravity of valve clack 4 through gravity piece 42, and is sealed better with valve body 1 when valve clack 4 closed flow path 11.

According to another embodiment of the present invention, as shown in fig. 1, a swing check valve structure, a torsion spring 23 is installed on the hinge shaft of the rocker 3 and the support seat 2, the torsion spring 23 is used for pressing the valve flap 4 on the flow channel 11, the acting force for opening the valve flap 4 is improved by increasing the action of the torsion spring 23, and the effect of stopping the valve flap 4 in the turbulent flow is better.

According to another embodiment of the present invention, as shown in fig. 1, a swing check valve structure, the valve body 1 is provided with a spherical portion 15, the spherical portion 15 is located under the valve port 12 and located at the downstream of the valve flap 4, the fluid flows through the spherical portion 15 after passing through the valve flap 4, a vortex is formed at the back of the valve flap 4, and when the fluid flows back, the valve flap 4 can be closed quickly under the action of the vortex, thereby improving the check effect.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A swing check valve structure comprises a valve body, wherein runners which are arranged in a T shape and a valve port which is vertically arranged are arranged in the valve body, the upstream end and the downstream end of each runner are detachably connected with a pipeline, and a valve cover is arranged at the top of the valve.

2. A swing check valve structure as claimed in claim 1, wherein: the supporting seat comprises a fixing block and a fixing shaft, the fixing block is fixedly connected to the inner wall of the valve body, a groove clamped with the fixing block is formed in the fixing shaft, the fixing shaft is fixedly connected with the fixing block through a bolt, and the tail end of the fixing shaft is hinged to the rocker.

3. A swing check valve structure as claimed in claim 2, wherein: the distal end of the fixed shaft is curved toward the upstream end of the flow passage, and the hinged end of the rocker is curved toward the upstream end of the flow passage.

4. A swing check valve structure as claimed in claim 1, wherein: and a notch matched with the valve clack is formed at the matching part of the flow passage and the valve clack.

5. A swing check valve structure as claimed in claim 4, wherein: and a rubber backing ring matched with the notch is fixedly connected to the valve clack.

6. A swing check valve structure as claimed in claim 1, wherein: the valve clack is fixedly connected with the rocker through a bolt, and a gravity block is sleeved on the bolt.

7. A swing check valve structure as claimed in claim 1, wherein: and a hinge shaft of the rocker and the supporting seat is provided with a torsion spring which is used for pressing the valve clack on the flow channel.

8. A swing check valve structure as claimed in claim 1, wherein: the valve body is provided with a spherical part which is positioned right below the valve port and is positioned at the downstream of the valve clack.