CN215861770U

CN215861770U - Multifunctional water pump control valve

Info

Publication number: CN215861770U
Application number: CN202122512302.5U
Authority: CN
Inventors: 金宗林; 陈海军
Original assignee: Jingjia Valve Group Co ltd
Current assignee: Jingjia Valve Group Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-02-18
Anticipated expiration: 2031-10-19

Abstract

The utility model discloses a multifunctional water pump control valve, wherein the upper surface of a valve body is connected with the bottom end of a diaphragm seat, the upper end of the diaphragm seat is connected with a valve cover, a diaphragm is arranged at the joint of the diaphragm seat and the valve cover, an upper diaphragm pressing plate is arranged on the upper surface of the diaphragm, a lower diaphragm pressing plate is arranged on the lower surface of the diaphragm, a first flow through hole is arranged on the upper part of the valve cover, a second flow through hole is arranged on one side of the diaphragm seat, two ends of a pipeline are respectively connected with the first flow through hole and the second flow through hole, and a first needle valve, a two-position four-way electromagnetic valve and a second needle valve are sequentially arranged in the pipeline from one end of the first flow through hole to one end of the second flow through hole.

Description

Multifunctional water pump control valve

Technical Field

The utility model relates to the technical field of water pump control valves, in particular to a multifunctional water pump control valve.

Background

A conventional multifunctional water pump control valve (such as a JD745X multifunctional water pump control valve) adopts the hydraulic power of a pipeline to control the opening and closing of the valve. When the sand content of the pipeline is very high or the sewage pipeline is adopted, the diaphragm control chamber is a circulating pipeline formed by a plurality of thin pipes, so that when impurities enter the diaphragm control chamber, the control chamber is quickly blocked, the switching function of the control valve is lost, and the valve is blocked. Therefore, the filter is installed on the control pipeline of the part of the multifunctional water pump control valve to prevent impurities from entering the membrane control chamber, but the filter needs to be cleaned and replaced frequently, so that the working strength of operators is greatly improved, and when the impurities are too much, the filter loses the filtering effect, the control pipeline is directly blocked, so that the valve cannot be closed and opened, and therefore, an improved technology is urgently needed to solve the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a multifunctional water pump control valve which can regulate and control opening and closing speeds, can play roles of stopping, eliminating water hammer and protecting a water pump, a motor and a pipeline in system operation, and solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a multifunctional water pump control valve comprises a main body and a pressure control mechanism;

the main body comprises a valve body, a diaphragm seat, a valve cover and a valve rod, wherein a valve seat is arranged in the valve body, the upper surface of the valve body is connected with the bottom end of the diaphragm seat, the upper end of the diaphragm seat is connected with the valve cover, a diaphragm is arranged at the joint of the diaphragm seat and the valve cover, an upper diaphragm pressing plate is arranged on the upper surface of the diaphragm, a lower diaphragm pressing plate is arranged on the lower surface of the diaphragm, a first flow through hole is arranged on the upper portion of the valve cover, a second flow through hole is arranged on one side of the diaphragm seat, a limit switch is arranged at the top end of the valve cover, the valve rod is arranged in the valve cover, the diaphragm seat and the valve body in a penetrating manner, the upper end of the valve rod is matched with the limit switch, the middle portion of the valve rod is connected with the diaphragm, a small valve clack is arranged at the lower end of the valve rod through a nut, the bottom end of the valve rod is also connected with a large valve clack in a sliding manner, the lower surface of the small valve clack is matched with the upper surface of the large valve clack, and the lower surface of the large valve clack is matched with the valve seat, a guide sleeve is arranged at the middle position of the diaphragm seat, the valve rod penetrates through the guide sleeve and is in sliding connection with the guide sleeve, and a spring is arranged between the diaphragm seat and the small valve flap;

pressure control mechanism includes pipeline, first needle valve, two four-way solenoid valves and second needle valve, the pipeline both ends link to each other with first flow through hole and second flow through hole respectively, the pipeline has set gradually first needle valve, two four-way solenoid valves and second needle valve from first flow through hole one end to second flow through hole one end.

Preferably, the bottom end of the valve body is provided with a sand discharge port to discharge waste residues in the valve body.

Preferably, the joint of the valve body and the diaphragm seat is provided with an O-shaped ring so as to ensure the sealing property of the joint of the valve body and the diaphragm seat.

Preferably, the top end of the valve rod is provided with a positioning block, and the limit switch is matched with the positioning block to realize the positioning of the position of the valve rod.

Preferably, the valve rod is arranged in the valve cover, a fixing block is arranged on the inner portion of the valve cover, and the lower surface of the fixing block is pressed on the upper surface of the upper diaphragm pressing plate, so that the diaphragm, the diaphragm upper pressing plate and the diaphragm lower pressing plate are fixed.

Preferably, the inlet end and the outlet end of the valve body are both provided with flanges to realize the fixation of the valve body.

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

the valve adopts a two-position four-way electromagnetic valve to control the water inlet and the water outlet of an upper cavity and a lower cavity of a diaphragm control chamber, so as to achieve the opening and the closing of the valve, and a needle valve on a control pipe is used for controlling the opening and the closing speed of the valve. The power source for controlling the opening and closing of the valve completely isolates the medium of the main pipeline, and impurities in the main pipeline are prevented from entering the diaphragm control chamber. Therefore, the valve can normally operate in media or sewage pipelines with large sand content, and has the functions of eliminating water hammer, stopping and stopping.

Drawings

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

fig. 2 is an enlarged structural view of the interior of the valve cover and diaphragm seat.

In the figure: 1. a valve body; 2. a diaphragm seat; 3. a membrane; 4. a membrane pressing plate is arranged; 5. a valve cover; 6. a needle valve; 7. a two-position four-way solenoid valve; 8. a limit switch; 9. a needle valve; 10. pressing a lower diaphragm; 11. an O-shaped ring; 12. a valve stem; 13. a guide sleeve; 14. a spring; 15. a small valve flap; 16. a large valve flap; 17. a valve seat; 18. a sand discharge port; 19. a first flow through hole; 20. a second flow through hole; 21. a pipeline; 22. positioning blocks; 23. a fixed block; 24. and (4) a flange.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention and the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention;

it should be noted that, in the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "both sides", "one end", "the other end", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Examples

Referring to fig. 1-2, a multi-functional water pump control valve of the present invention includes a main body and a pressure control mechanism; the main body comprises a valve body 1, a diaphragm seat 2, a valve cover 5 and a valve rod 12, wherein a valve seat 17 is arranged inside the valve body 1, the upper surface of the valve body 1 is connected with the bottom end of the diaphragm seat 2, an O-shaped ring 11 is arranged at the joint of the valve body 1 and the diaphragm seat 2, the upper end of the diaphragm seat 2 is connected with the valve cover 5, a diaphragm 3 is arranged at the joint of the diaphragm seat 2 and the valve cover 5, an upper diaphragm pressing plate 4 is arranged on the upper surface of the diaphragm 3, a lower diaphragm pressing plate 10 is arranged on the lower surface of the diaphragm 3, a limiting block 23 is arranged at the part of the valve rod 12, which is positioned inside the valve cover 5, the lower surface of the limiting block 23 is pressed on the upper surface of the upper diaphragm pressing plate 4, a first flow through hole 19 is arranged on the upper portion of the valve cover 5, a second flow through hole 20 is arranged on one side of the diaphragm seat 2, a limiting switch 8 is arranged at the top end of the valve cover 5, the valve rod 12 is arranged inside the valve cover 5, the diaphragm seat 2 and the valve body 1 in a way, the upper end of the valve rod 12 is matched with the limiting switch 8, a positioning block 22 is arranged at the top end of the valve rod 12, the limiting switch 8 is matched with a positioning block 22, the middle part of a valve rod 12 is connected with a diaphragm 3, the lower end of the valve rod 12 is provided with a small valve clack 15 through a nut, the bottom end of the valve rod 12 is also connected with a large valve clack 16 in a sliding manner, the lower surface of the small valve clack 15 is matched with the upper surface of the large valve clack 16, the lower surface of the large valve clack 16 is matched with a valve seat 17, a guide sleeve 13 is arranged at the middle position of a diaphragm seat 2, the valve rod 12 penetrates through the guide sleeve 13 and is connected with the guide sleeve 13 in a sliding manner, a spring 14 is further arranged between the diaphragm seat 2 and the small valve clack 15, the bottom end of a valve body 1 is provided with a sand discharge port 18, and the inlet end and the outlet end of the valve body 1 are both provided with flanges 24; the pressure control mechanism comprises a pipeline 21, a first needle valve 6, a two-position four-way electromagnetic valve 7 and a second needle valve 9, two ends of the pipeline 21 are respectively connected with a first flow through hole 19 and a second flow through hole 20, and the pipeline 21 is sequentially provided with the first needle valve 6, the two-position four-way electromagnetic valve 7 and the second needle valve 9 from one end of the first flow through hole 19 to one end of the second flow through hole 20.

The installation method and the use principle are as follows: the valve rod 12 penetrates through the valve cover 5, the limiting block 23 is connected with the valve rod 12, the upper diaphragm pressing plate 4 is connected with the valve rod 12 and located at the limiting lower end, the diaphragm 3 and the lower diaphragm pressing plate 10 are sequentially installed on the valve rod 12, the valve rod 12 penetrates through the guide sleeve 13 of the diaphragm seat 2, the diaphragm seat 2 is connected with the valve cover 5, and meanwhile the edge of the diaphragm 3 is clamped at the connecting position of the valve cover 5 and the diaphragm seat 2. The spring 14 is connected at one end to the guide sleeve 13, the small flap 15 is then mounted on the lower end of the valve stem 12, and the large flap 16 is connected to the lower end of the valve stem 12. Then, the diaphragm seat 2 is connected with the upper end of the valve body 1, and an O-shaped ring 11 is arranged at the joint of the diaphragm seat 2 and the valve body 1. And finally, installing the limit switch 8 at the top of the valve cover 5 and matching with the positioning block 22 at the top end of the valve rod 12 to complete the assembly of the main body. And then, one end of a pipeline 21 is connected with a first flow through hole 19 of the valve cover 5, the pipeline 21 is sequentially connected with a first needle valve 6, a two-position four-way electromagnetic valve 7 and a second needle valve 9, the other end of the pipeline 21 is connected with a second flow through hole 20 of the diaphragm seat 2, the integral installation is completed, and the two-position four-way electromagnetic valve 7 is connected with a water source or an air source. Before the water pump is turned on, the external water source pressure enters the upper chamber of the diaphragm 3 in the valve cover 5 through the pipeline 21 at one end of the first through hole 19, the pipeline 21 at one end of the second through hole 20 is closed, and the valve is in a closed state. When the water pump is opened, the two-position four-way electromagnetic valve 7 is reversed, water source pressure enters a cavity at the lower end of the diaphragm 3 of the diaphragm seat 2 from a pipeline 21 at one end of the second flow through hole 20, the water enters slowly due to passing through the second needle valve 9, water in the cavity of the valve cover 5 is discharged from one end of the first flow through hole 19 and simultaneously passes through the first needle valve 6, the pressure of the cavity below the diaphragm 3 of the diaphragm seat 2 is gradually increased, the diaphragm 3 is pushed to move upwards, meanwhile, the water pressure of the passage of the valve body 1 acts on the large valve clack 16 and the small valve clack 15, the large valve clack 16 and the small valve clack 15 are pushed to be opened slowly, and the pipeline 21 supplies water normally. When the water pump stops pumping, the pressure in front of the valve is zero, the big valve clack 16 is lowered to the position of the valve seat 17 under the action of gravity, the big valve clack 16 is closed, water backflow is prevented, meanwhile, the two-position four-way electromagnetic valve 7 is reversed, the water source pressure enters the cavity at the upper end of the diaphragm 3 from the pipeline 21 at one end of the first flow through hole 19, the pressure increase speed of the upper cavity of the diaphragm 3 is controlled due to the fact that the water source pressure passes through the first needle valve 6, the water pressure of the lower cavity of the diaphragm 3 is discharged through the pipeline 21 at one end of the second flow through hole 20, the water pressure reduction speed is also controlled due to the fact that the water passes through the second needle valve 9, the pressure of the upper cavity of the diaphragm 3 is gradually increased, the diaphragm 3 is pushed to move downwards, and the small valve clack 15 is gradually closed. When the small valve clack 15 reaches the closing position, the valve rod 12 pulls the limit switch 8 to reach the closing position at the same time, the two-position four-way electromagnetic valve 7 is closed, the chamber pressure in the diaphragm 3 is stable, and the valve is in the closing state. The slow closing of the small flap 15 creates a cushioning effect that prevents water hammer.

This valve is installed at the water pump back, utilizes external water source or air supply pressure to open and close the main valve, has water hammer annihilator, ends and the effect of check valve, is a neotype two-stage and closes the valve, the primary function: the water hammer of the pipeline when the water pump is started and stopped is prevented and weakened, the water backflow is prevented, the water pump is protected, and the pipeline safety is maintained. Mainly in media with high sand content or in sewage pipes.

The two-position four-way electromagnetic valve 7 controls water inlet and water outlet of an upper cavity and a lower cavity of a diaphragm control chamber (the diaphragm control chamber formed by the valve cover 5 and the diaphragm seat 2) to realize opening and closing of the valve, and a needle valve on a control pipe controls opening and closing speeds of the valve. The power source for controlling the opening and closing of the valve completely isolates the medium of the main pipeline, and impurities in the main pipeline are prevented from entering the diaphragm control chamber. Therefore, the valve can normally operate in media or sewage pipelines with large sand content, and has the functions of eliminating water hammer, stopping and stopping.

The utility model is not described in detail, but is well known to those skilled in the art.

Finally, it is to be noted that: although the present invention has been described in detail with reference to examples, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides a multi-functional water pump control valve which characterized in that: comprises a main body and a pressure control mechanism;

the valve body comprises a valve body (1), a diaphragm seat (2), a valve cover (5) and a valve rod (12), a valve seat (17) is arranged inside the valve body (1), the upper surface of the valve body (1) is connected with the bottom end of the diaphragm seat (2), the upper end of the diaphragm seat (2) is connected with the valve cover (5), a diaphragm (3) is arranged at the joint of the diaphragm seat (2) and the valve cover (5), an upper diaphragm pressing plate (4) is arranged on the upper surface of the diaphragm (3), a lower diaphragm pressing plate (10) is arranged on the lower surface of the diaphragm (3), a first flow through hole (19) is arranged on the upper portion of the valve cover (5), a second flow through hole (20) is arranged on one side of the diaphragm seat (2), a limit switch (8) is arranged at the top end of the valve cover (5), the valve rod (12) is arranged inside the valve cover (5), the diaphragm seat (2) and the valve body (1) in a penetrating mode, and the upper end of the valve rod (12) is matched with the limit switch (8), the middle part of the valve rod (12) is connected with the diaphragm (3), the lower end of the valve rod (12) is provided with a small valve clack (15) through a nut, the bottom end of the valve rod (12) is further connected with a large valve clack (16) in a sliding mode, the lower surface of the small valve clack (15) is matched with the upper surface of the large valve clack (16), the lower surface of the large valve clack (16) is matched with a valve seat (17), a guide sleeve (13) is arranged in the middle of the diaphragm seat (2), the valve rod (12) penetrates through the guide sleeve (13) and is connected with the guide sleeve (13) in a sliding mode, and a spring (14) is further arranged between the diaphragm seat (2) and the small valve clack (15);

pressure control mechanism includes pipeline (21), first needle valve (6), two four-way solenoid valve (7) and second needle valve (9), pipeline (21) both ends link to each other with first flow through hole (19) and second flow through hole (20) respectively, pipeline (21) have set gradually first needle valve (6), two four-way solenoid valve (7) and second needle valve (9) from first flow through hole (19) one end to second flow through hole (20) one end.

2. The multifunctional water pump control valve of claim 1, wherein: the bottom end of the valve body (1) is provided with a sand discharge port (18).

3. The multifunctional water pump control valve of claim 1, wherein: an O-shaped ring (11) is arranged at the joint of the valve body (1) and the diaphragm seat (2).

4. The multifunctional water pump control valve of claim 1, wherein: the top end of the valve rod (12) is provided with a positioning block (22), and the limit switch (8) is matched with the positioning block (22).

5. The multifunctional water pump control valve of claim 1, wherein: the valve rod (12) is located in the valve cover (5) and is partially provided with a fixing block (23), and the lower surface of the fixing block (23) is pressed on the upper surface of the upper diaphragm pressing plate (4).

6. The multifunctional water pump control valve of claim 1, wherein: and flanges (24) are arranged at the inlet end and the outlet end of the valve body (1).