CN213954443U

CN213954443U - One-way valve

Info

Publication number: CN213954443U
Application number: CN202022969360.6U
Authority: CN
Inventors: 胡银山
Original assignee: Dongguan Zhentian Precision Electronics Co ltd
Current assignee: Dongguan Zhentian Precision Electronics Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-08-13
Anticipated expiration: 2030-12-10

Abstract

The utility model relates to a fluid control technical field specifically is a check valve, including the outlet pipe, one side fixedly connected with disk seat of outlet pipe, first spacing hole has been seted up to the inside of disk seat, it has the spring to peg graft in the inside in first spacing hole, the one end overlap joint of spring has the ball, the surface threaded connection of disk seat has the valve gap, one side fixedly connected with inlet tube of valve gap, the spacing hole of second has been seted up to the inside of valve gap, it has the sealing washer to peg graft in the inside in the spacing hole of second. The utility model has the advantages that: through setting up threaded connection's disk seat and valve gap, can unscrew threaded connection's disk seat and valve gap to make the inside seal assembly of valve body be convenient for wash and change, reduce use cost, through seting up the ring channel at the surface of ball, prevent that the ball from taking place the rotation under the effect of rivers, thereby avoided ball and the rotatory problem that causes sealed effect not good of spring wearing and tearing department to the working face of sealing washer.

Description

One-way valve

Technical Field

The utility model relates to a fluid control technical field, especially a check valve.

Background

Check valves are also known as check valves or check valves. For preventing reverse flow of oil in hydraulic systems or for preventing reverse flow of compressed air in pneumatic systems.

The one-way valve is a check valve swing type check valve, is not limited in installation position, is usually installed on a horizontal pipeline, but can also be installed on a vertical pipeline or an inclined pipeline.

However, the conventional check valve has the following disadvantages while solving the problems:

the existing check valve has the advantages that in the long-time use process, the valve body is internally blocked or the valve body is internally damaged due to sealing components, so that the sealing components are difficult to detach and clean, the damaged sealing components are difficult to replace or cannot be replaced, and the use cost is improved.

Disclosure of Invention

An object of the utility model is to overcome prior art's shortcoming, provide a check valve.

The purpose of the utility model is realized through the following technical scheme: a check valve comprises a water outlet pipe, wherein a valve seat is fixedly connected to one side of the water outlet pipe, a first limiting hole is formed in the valve seat, a spring is inserted in the first limiting hole, a round ball is connected to one end of the spring in an overlapping mode, and an annular groove is formed in the outer surface of the round ball;

the outer surface threaded connection of disk seat has the valve gap, one side fixedly connected with inlet tube of valve gap, the spacing hole of second has been seted up to the inside of valve gap, the inside fixedly connected with sealing washer in the spacing hole of second.

Preferably, the outer surface of the valve seat and the inner wall of the valve cover are respectively provided with matched threads, and the outer surface of the valve seat is in threaded connection with the inner wall of the valve cover.

Preferably, one side of the ball, which is far away from the spring, is lapped with a sealing ring.

Preferably, the material of the ball is glass.

Preferably, a water inlet cavity is formed in one side, away from the water outlet pipe, of the valve seat, and the aperture of the water inlet cavity is larger than that of the first limiting hole.

Preferably, a water inlet groove matched with the water inlet cavity is formed in the valve cover.

The utility model has the advantages of it is following:

1. according to the check valve, the valve seat and the valve cover are in threaded connection, so that when the valve body is blocked or the sealing assembly in the valve body fails, the valve seat and the valve cover in threaded connection can be unscrewed, the sealing assembly in the valve body is convenient to clean and replace, and the use cost is reduced;

2. this check valve for the ring channel is seted up through the surface at the ball for the ring channel prevents with spring cooperation installation that the ball from taking place the rotation under the effect of rivers, thereby has avoided ball and the rotatory problem that causes sealed effect not good to the working face of sealing washer of spring wearing and tearing department, improves life.

Drawings

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

FIG. 2 is a schematic view of the structure of the present invention;

fig. 3 is the schematic view of the sectional structure of the valve seat and the valve cover of the present invention.

In the figure: 1-water outlet pipe, 2-valve seat, 3-first limit hole, 4-spring, 5-ball, 6-valve cover, 7-water inlet pipe, 8-second limit hole, 9-sealing ring, 10-water inlet cavity, 11-water inlet groove and 12-annular groove.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1-2, a check valve comprises a water outlet pipe 1, one end of the outer surface of the water outlet pipe 1 is fixedly connected with a limit ring, the water outlet pipe 1 is in interference connection with a water outlet pipe by arranging the limit ring, the output end of the water outlet pipe 1 is prevented from leaking water, one side of the water outlet pipe 1 is fixedly connected with a valve seat 2, a water outlet hole is arranged in the valve seat 2, one end of the water outlet hole is the same as and fixedly connected with the water outlet hole in the water outlet pipe 1, the outer surface of the valve seat 2 is provided with a thread, a first limit hole 3 is arranged in the valve seat 2, one end of the water outlet hole in the valve seat 2, which is far away from the water outlet pipe 1, is a first limit hole 3, the aperture of the first limit hole 3 is larger than the water outlet hole, a step is formed at the position where the first limit hole 3 is contacted with the water outlet hole, a spring 4 is inserted in the first limit hole 3, one end of the spring 4 is overlapped at one side of the step, the outer surface of the spring 4 is in contact with the inner wall of the limiting hole, so that the one-way valve is prevented from being failed due to dislocation of the spring 4, one end of the spring 4 is connected with the ball 5 in an overlapping mode, the diameter of the ball 5 is larger than that of the spring 4, and the ball 5 is in contact with one side of the spring 4, so that the spring 4 can act on the ball 5, the ball 5 is prevented from being accumulated and pressed inside the spring 4, normal work of the one-way valve is influenced, the outer surface of the ball 5 is provided with the annular groove 12, the ball 5 is matched with the spring 4 through the annular groove 12, the ball 5 is easier to mount, and leakage caused by abrasion due to autorotation is avoided;

as shown in fig. 3, the outer surface of the valve seat 2 is connected with the valve cover 6 by screw threads, the valve cover 6 is internally provided with a hole matched with the valve seat 2, the inner wall of the hole is provided with screw threads matched with the screw threads on the outer surface of the valve seat 2, the valve seat 2 is ensured to be connected with the valve cover 6 by screw threads, and the sealing purpose is achieved, one side of the valve cover 6 is fixedly connected with a water inlet pipe 7, the bottom of the inner hole of the valve cover 6 is provided with a water inlet groove 11, the bottom of the water inlet groove 11 is provided with a second limiting hole 8, the bottom of the second limiting hole 8 is provided with a water inlet hole, the other end of the water inlet hole is fixedly connected with a water inlet pipe 7, one end of the outer surface of the water inlet pipe 7 is fixedly connected with a limiting ring, the water inlet pipe 7 is in interference connection with a water outlet conduit by, so that the place where the second spacing hole 8 and the inlet opening contact also forms a step, the inside fixedly connected with sealing washer 9 of the second spacing hole 8, one side overlap joint of sealing washer 9 is in one side of step, and the surface of sealing washer 9 contacts with the inner wall of the spacing hole 8 of second moreover for sealing washer 9 cooperatees with ball 5 and reaches sealed purpose.

As a preferred technical scheme, the screw thread of looks adaptation is seted up respectively to the surface of disk seat 2 and the inner wall of valve gap 6, through the screw thread of establishing the looks adaptation for disk seat 2 and valve gap 6 can zonulae occludens, avoid the check valve to leak, disk seat 2's surface and valve gap 6's inner wall threaded connection.

As the utility model relates to an optimal technical scheme, ball 5 keeps away from one side overlap joint of spring 4 has sealing washer 9, through spring 4, ball 5 and the cooperation of sealing washer 9, can realize the one-way circulation of check valve.

As an optimized technical proposal of the utility model, the material of the ball 5 is glass, because the ball 5 is contacted with liquid for a long time, the ball is prevented from being damaged due to corrosion.

As a preferred technical scheme, one side that outlet pipe was kept away from to disk seat 2 has seted up intake antrum 10, and the aperture of intake antrum 10 is greater than the diameter of ball 5 for gas or liquid that have certain pressure can flow into the apopore through the outside of ball 5, and the aperture of intake antrum 10 is greater than the aperture of first spacing hole 3, and the chute has been seted up with the place of first spacing hole 3 contact to intake antrum 10, through setting up the chute, makes the resistance that gas or liquid that have certain pressure flow in the check valve reduce.

As a preferred technical scheme of the utility model, the intake antrum 10 looks adaptation's intake antrum 11 is seted up with the inside of valve gap 6, through setting up intake antrum 11 for the resistance when the check valve is inside to flow in of gas or liquid that have certain pressure reduces.

The working process of the utility model is as follows: when the check valve is used, a guide pipe of gas or liquid with certain pressure is connected with a water inlet pipe 7, the gas or liquid with certain pressure enters the inside of the check valve through the water inlet pipe 7, firstly passes through the inside of a sealing ring 9, the round ball 5 on one side of the sealing ring 9 is jacked open, the gas or liquid with certain pressure jacks open the round ball 5, enters a water inlet groove 11 from a second limiting hole 8, then enters a water inlet cavity 10, then enters a first limiting hole 3 through the water inlet cavity 10, the gas or liquid with certain pressure enters the inside of a water outlet pipe 1 through the first limiting hole 3, then the gas or liquid with certain pressure is output from the water outlet pipe 1, when the inside of the check valve is blocked or an internal sealing component is damaged, the water inlet pipe 7 and the water outlet pipe 1 are in interference connection with the guide pipe through limiting blocks, so that the water inlet pipe and the water outlet pipe can rotate relatively, and the valve seat 2 and the, the interior of the check valve can then be cleaned or the seal assembly replaced.

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. A one-way valve characterized by: the water outlet pipe comprises a water outlet pipe (1), wherein a valve seat (2) is fixedly connected to one side of the water outlet pipe (1), a first limiting hole (3) is formed in the valve seat (2), a spring (4) is inserted into the first limiting hole (3), one end of the spring (4) is lapped with a round ball (5), and an annular groove (12) is formed in the outer surface of the round ball (5);

the outer surface threaded connection of disk seat (2) has valve gap (6), one side fixedly connected with inlet tube (7) of valve gap (6), spacing hole of second (8) have been seted up to the inside of valve gap (6), inside fixedly connected with sealing washer (9) in the spacing hole of second (8).

2. A one-way valve according to claim 1, wherein: the outer surface of the valve seat (2) and the inner wall of the valve cover (6) are respectively provided with matched threads, and the outer surface of the valve seat (2) is in threaded connection with the inner wall of the valve cover (6).

3. A one-way valve according to claim 1, wherein: and a sealing ring (9) is lapped on one side of the round ball (5) far away from the spring (4).

4. A one-way valve according to claim 1, wherein: the round ball (5) is made of glass.

5. A one-way valve according to claim 1, wherein: one side of the valve seat (2) far away from the water outlet pipe is provided with a water inlet cavity (10), and the aperture of the water inlet cavity (10) is larger than that of the first limiting hole (3).

6. A one-way valve according to claim 1, wherein: the valve cover (6) is internally provided with a water inlet groove (11) matched with the water inlet cavity (10).