CN216715324U

CN216715324U - One-way valve

Info

Publication number: CN216715324U
Application number: CN202122507601.XU
Authority: CN
Inventors: 谢炜; 汪波; 刘梓光; 柯海林
Original assignee: Arrow Home Group Co Ltd
Current assignee: Arrow Home Group Co Ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-06-10
Anticipated expiration: 2031-10-18

Abstract

The utility model discloses a one-way valve which comprises a valve body and at least one-way assembly, wherein the valve body comprises at least one first water inlet, one second water inlet and one water outlet; the valve block is connected with the installation barrel and is positioned at the water outlet end of the installation barrel, and the valve block covers the through hole and can swing in the installation barrel. By adopting the utility model, the one-way conduction can be realized when the impact pressure of the fluid is lower, and the mutual interference of the fluids connected with a plurality of water inlet pipelines in the one-way flowing process can be avoided.

Description

One-way valve

Technical Field

The utility model relates to the technical field of valves, in particular to a one-way valve.

Background

Check valves, also known as check valves or back valves, are used in waterways to prevent reverse flow of water, in hydraulic systems to prevent reverse flow of oil, or in pneumatic systems to prevent reverse flow of compressed air. The traditional fluid one-way valve can realize one-way conduction only by requiring certain impact pressure of fluid, and when the flow of the fluid is too small, the impact pressure of the fluid is too small, and the one-way valve cannot realize one-way conduction. Secondly, traditional fluid check valve is single pipeline, only can realize the one-way circulation function of fluidic all the way, has the limitation, and when many inlet channels were communicate to the check valve, not only connection structure is complicated, and the fluid changes in the valve and forms the interference that the one-way flow process easily received other pipelines to influence the result of use of check valve.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a one-way valve, which can realize one-way conduction even when the impact pressure of fluid is low, and can avoid mutual interference of the fluid connected with a plurality of water inlet pipelines in the one-way flowing process.

In order to solve the technical problem, the utility model provides a one-way valve which comprises a valve body and at least one-way assembly, wherein the valve body comprises at least one first water inlet, one second water inlet and one water outlet; the valve block is connected with the installation barrel and is positioned at the water outlet end of the installation barrel, and the valve block covers the through hole and can swing in the installation barrel.

As an improvement of the above scheme, the valve plate and the inclined part incline in the same direction to cover the through hole.

As an improvement of the scheme, the upper end of the valve plate is hinged with the mounting barrel, and the upper part of the inclined part inclines towards the direction close to the water inlet end of the mounting barrel.

As an improvement of the scheme, the side face of the valve plate is provided with a convex part, the inclined part is provided with a bayonet, and the convex part is clamped in the bayonet.

As an improvement of the scheme, a sealing gasket is arranged between the valve plate and the through hole.

As an improvement of the scheme, the valve plate is provided with a buckle, and the sealing gasket is clamped on the buckle.

As an improvement of the scheme, the through hole is provided with a flange, and the flange is abutted to the sealing gasket.

As an improvement of the scheme, the one-way valve further comprises a sealing ring, an annular groove is formed in the outer surface of the mounting cylinder, and the sealing ring is arranged in the annular groove and abuts against the inner wall of the valve body.

As an improvement of the scheme, the number of the one-way assemblies is two, and the two one-way assemblies are respectively arranged at the second water inlet and the water outlet.

As an improvement of the above scheme, the valve body comprises a first pipe body and a second pipe body which are communicated with each other, one end of the first pipe body is connected with the outer wall of the second pipe body, and the axis of the first pipe body is perpendicular to the axis of the second pipe body; the first water inlet is arranged at the other end of the first pipe body, the second water inlet is arranged at one end of the second pipe body, and the water outlet is arranged at the other end of the second pipe body.

The beneficial effects of the implementation of the utility model are as follows:

in the check valve, when the impact pressure of the fluid entering the check valve is lower, the fluid is guided and accumulated at the through hole through the inclined part when flowing to the mounting cylinder, so that the impact pressure of the fluid at the through hole is increased, and the valve plate is pushed to swing to open the through hole and realize one-way through flow; when no fluid enters the one-way valve, the valve plate covers the through hole to prevent the fluid from flowing reversely. Secondly, because the one-way assembly is arranged at the first water inlet or the second water inlet, when fluid enters from one water inlet, the fluid is not interfered by other water inlets. Therefore, the utility model can realize one-way conduction when the impact pressure of the fluid is lower, and simultaneously can avoid the mutual interference of the fluid connected with a plurality of water inlet pipelines in the one-way flowing process.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the check valve of the present invention;

FIG. 3 is an enlarged schematic view of area A of FIG. 2;

FIG. 4 is an exploded schematic view of the check valve of the present invention;

FIG. 5 is a perspective view of a valve plate in the check valve of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the utility model is intended to be limited by the accompanying drawings, in which like references indicate upper, lower, left, right, front, rear, inner and outer aspects of the utility model and in which reference is made to the appended drawings, and in which reference is not intended to be limiting; the arrows in fig. 2 represent the direction of flow of the fluid.

With reference to fig. 1 to 5, the present invention provides a check valve, which includes a valve body 1 and at least one check assembly 2, where the valve body 1 includes at least one first water inlet 13, one second water inlet 14 and one water outlet 15, the check assembly 2 is installed at the first water inlet 13 or the second water inlet 14, and the check assembly 2 includes an installation cylinder 21 and a valve plate 22; the mounting cylinder 21 is arranged in the valve body 1, an inclined part 211 is arranged in the mounting cylinder 21, a through hole 212 communicated with the valve body is formed in the inclined part 211, the valve plate 22 is connected with the mounting cylinder 21 and is located at a water outlet end 214 of the mounting cylinder 21, and the valve plate 22 covers the through hole 212 and can swing in the mounting cylinder 21.

It should be noted that, in the check valve of the present invention, when the impact pressure of the fluid entering the check valve is small, the fluid is guided and accumulated at the through hole 212 through the inclined portion 211 when flowing to the mounting cylinder 21, so that the impact pressure of the fluid at the through hole 212 is increased, and the valve plate 22 is further pushed to swing to open the through hole 212, thereby realizing one-way through-flow; when no fluid enters the check valve, the valve plate 22 covers the through hole 212 to prevent the reverse flow of the fluid. Secondly, since the one-way assembly 2 is installed at the first water inlet 13 or the second water inlet 14, when fluid enters from one of the water inlets, the fluid is not interfered by the other water inlets. Therefore, the utility model can realize one-way conduction when the impact pressure of the fluid is lower, and can avoid mutual interference of the fluid in a plurality of water inlet pipelines in the one-way flowing process.

In this embodiment, in order to be suitable for a common double water inlet pipeline and facilitate installation of workers, the valve body 1 includes a first pipe 16 and a second pipe 17 which are communicated with each other, one end of the first pipe 16 is connected with an outer wall of the second pipe 17, and an axis of the first pipe 16 is perpendicular to an axis of the second pipe 17; the first water inlet 13 is arranged at the other end of the first pipe body 16, the second water inlet 14 is arranged at one end of the second pipe body 17, and the water outlet 15 is arranged at the other end of the second pipe body 17; the number of the unidirectional assemblies 2 is preferably two, the unidirectional assemblies 2 in the first group are arranged at the second water inlet 14, the unidirectional assemblies 2 in the second group are arranged at the water outlet 15, and the first water inlet 13 is positioned above the second water inlet 14.

When fluid flows in from the first water inlet 13, the valve plate 22 in the first group of one-way assemblies 2 covers the through hole 212, and the fluid cannot flow out from the second water inlet 14 but only flows out from the water outlet 15; when fluid flows in from the second water inlet 14, the fluid pushes the valve plates 22 in the first group of one-way assemblies 2 and the valve plates 22 in the second group of one-way assemblies 2 in sequence, and finally flows out from the water outlet 15, wherein the fluid cannot flow out from the first water inlet 13 because the impact pressure of the fluid is low; when no fluid flows in, the valve plates 22 in the two sets of one-way assemblies 2 cover the corresponding through holes 212, and the fluid outside the water outlet 15 cannot flow reversely into the one-way valve.

As shown in fig. 2, in order to further enhance the accumulation effect, the valve sheet 22 is inclined in the same direction as the inclined portion 211 to cover the through hole 212.

As shown in fig. 2 to 5, the upper end of the valve plate 22 is hinged to the mounting cylinder 21, and the upper portion of the inclined portion 211 is inclined toward the water inlet end 213 of the mounting cylinder 21. When the fluid passes through the unidirectional assembly 2, the fluid can be guided to accumulate at the through hole 212 through the inclined part 211 and can also accumulate at the through hole 212 under the action of gravity, so that the accumulation effect is better; secondly, when the fluid does not pass through the one-way component 2, the valve plate 22 can automatically swing downwards under the action of gravity to cover the through hole 212, and the effect of backflow prevention is better. If the valve body 1 is hinged to the mounting cylinder 21 at another place, when the fluid does not pass through the one-way assembly 2, once the fluid flows back, the valve plate 22 needs to be reset under the impact of the backflow of the fluid to cover the through hole 212, which easily causes a small amount of fluid to flow back to the water inlet end 213 of the one-way assembly 2.

Correspondingly, in order to facilitate production and subsequent maintenance, a convex part 221 is arranged on the side surface of the valve plate 22, a bayonet 215 is arranged on the inclined part 211, and the convex part 221 is clamped in the bayonet 215, so that two sides of the valve plate 22 are hinged to the inner wall of the mounting tube 21.

As shown in fig. 2 to 4, in order to ensure the effect of preventing backflow, a sealing gasket 3 is disposed between the valve plate 22 and the through hole 212.

Correspondingly, in order to facilitate production and subsequent maintenance, a buckle 222 is arranged on the valve plate 22, and the sealing gasket 3 is clamped on the buckle 222.

Secondly, the through hole 212 is provided with a flange 216, because the sealing gasket 3 is soft, when the valve plate 22 covers the through hole 212, the flange 216 abuts against the sealing gasket 3, so that the anti-circulation effect between the through hole 212 and the sealing gasket 3 is further enhanced, and the anti-backflow effect is further enhanced.

Further, in order to guarantee the inner wall of the valve body 1 and the anti-circulation effect between the outer walls of the installation cylinder 21, the check valve further comprises a sealing ring 4, an annular groove 217 is formed in the outer surface of the installation cylinder 21, and the sealing ring 4 is arranged in the annular groove 217 and is abutted to the inner wall of the valve body 1.

As shown in fig. 1, in order to facilitate installation of the check valve by a worker and prevent fluid from overflowing from a connection between the check valve and a connection pipe, a buckle body 11 is provided at each end of the valve body 1.

As shown in fig. 1, the outer surface of the valve body 1 is provided with a non-slip portion 12 for easy installation by a worker, and in the present embodiment, the non-slip portion 12 is preferably a ring-shaped convex body.

In summary, the utility model can realize one-way conduction when the impact pressure of the fluid is small, and can avoid mutual interference of the fluid connected with a plurality of water inlet pipelines in the one-way flowing process.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.

Claims

1. A one-way valve is characterized by comprising a valve body and at least one-way assembly, wherein the valve body comprises at least a first water inlet, a second water inlet and a water outlet, the one-way assembly is arranged at the first water inlet or the second water inlet, and the one-way assembly comprises an installation cylinder and a valve plate;

the valve block is connected with the installation barrel and is positioned at the water outlet end of the installation barrel, and the valve block covers the through hole and can swing in the installation barrel.

2. The check valve of claim 1, wherein the valve sheet is inclined in the same direction as the inclined portion to cover the through hole.

3. The check valve of claim 1, wherein the upper end of the valve plate is hinged to the mounting cylinder, and the upper portion of the inclined portion is inclined toward the water inlet end of the mounting cylinder.

4. The check valve of claim 3, wherein the side surface of the valve plate is provided with a convex portion, the inclined portion is provided with a bayonet, and the convex portion is clamped in the bayonet.

5. The check valve of claim 1, wherein a gasket is disposed between the valve plate and the through hole.

6. The check valve of claim 5, wherein the valve plate is provided with a buckle, and the sealing gasket is clamped on the buckle.

7. The check valve of claim 5, wherein a flange is disposed on the through hole, the flange abutting against the gasket.

8. The check valve of claim 1, further comprising a sealing ring, wherein an outer surface of the mounting cylinder is provided with an annular groove, and the sealing ring is arranged in the annular groove and abuts against an inner wall of the valve body.

9. The check valve of claim 1, wherein the number of the check assemblies is two, and the two sets of the check assemblies are respectively disposed at the second water inlet and the water outlet.

10. The check valve as claimed in claim 9, wherein the valve body comprises a first tube and a second tube communicating with each other, one end of the first tube is connected to an outer wall of the second tube, and an axis of the first tube is perpendicular to an axis of the second tube;

the first water inlet is arranged at the other end of the first pipe body, the second water inlet is arranged at one end of the second pipe body, and the water outlet is arranged at the other end of the second pipe body.