CN215258036U

CN215258036U - Automatic adjusting pressure reducing valve

Info

Publication number: CN215258036U
Application number: CN202120699941.4U
Authority: CN
Inventors: 丁建良; 周炳
Original assignee: Zhejiang Yuanyao Valve Industrial Co ltd
Current assignee: Zhejiang Yuanyao Valve Industrial Co ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-12-21
Anticipated expiration: 2031-04-07

Abstract

An automatic adjusting pressure reducing valve belongs to the technical field of pressure reducing valves; including last valve body, the inside of going up the valve body is hollow structure, goes up valve body's bottom surface fixedly connected with lower valve body, and the pipeline of two mirror images of the outer wall fixedly connected with of lower valve body, the last fixed surface of pipeline is connected with the manometer, the top surface threaded connection who goes up the valve body has the threaded rod, the upper end fixedly connected with hand wheel of threaded rod, the inside of going up the valve body is provided with the pressure regulating device. When the liquid volume increases in the pipeline and leads to the liquid pressure to rise, liquid flows to the bottom plate through the liquid channel, utilizes high liquid pressure to extrude the bottom plate, and then drives the bottom plate and move down for the liquid channel communicates with each other with lower cavity, and liquid passes through the liquid channel and gets into lower cavity, and liquid is discharged from the liquid channel of the other end, and then accomplishes the step-down, can play the effect of a pressure regulating in the very first time, has avoided the pipeline damage that long-term pressure too high leads to.

Description

Automatic adjusting pressure reducing valve

Technical Field

The utility model belongs to the technical field of the relief pressure valve, specifically relate to an automatic adjustment relief pressure valve.

Background

The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure through regulation and leads the outlet pressure to be automatically kept stable by relying on the energy of the medium. The pressure reducing valve can be divided into a film type, a spring film type, a piston type, a lever type and a bellows type according to the structural form; the valve seats can be manually single seat type or double seat type according to the number of the valve seats; the valve flap can be divided into a positive action type and a reaction type according to the position of the valve flap. The main work mentioned in CN1786533A for pressure reduction is done by a manual regulating valve, which is observed to reduce the pressure by observing the pressure change, and cannot automatically reduce the pressure according to the liquid pressure. Thus, when the neutralized liquid pressure in the pipe is too high, it is not found in the first place that the pipe is crushed by the high liquid pressure, which causes the pipe to break, and therefore, a pressure reducing valve capable of automatically adjusting according to the liquid pressure is needed.

Disclosure of Invention

The utility model discloses solve the technical problem that above-mentioned prior art exists, provide an automatic adjustment relief pressure valve.

The above technical problem of the present invention can be solved by the following technical solutions: an automatic adjustment pressure reducing valve comprises an upper valve body, wherein the interior of the upper valve body is of a hollow structure, the bottom surface of the upper valve body is fixedly connected with a lower valve body, the outer wall of the lower valve body is fixedly connected with two mirror-image pipelines, the upper surface of the pipelines is fixedly connected with a pressure gauge, the top surface of the upper valve body is in threaded connection with a threaded rod, the upper end of the threaded rod is fixedly connected with a hand wheel, the lower end of the threaded rod penetrates through the upper valve body, a pressure regulating device is arranged inside the upper valve body, the upper end and the lower end of the interior of the lower valve body are respectively provided with an upper cavity and a lower cavity, the interior of the lower cavity is provided with a bottom plate capable of sliding, the pressure regulating device comprises a top plate, the top plate is fixedly connected with the lower end of the threaded rod, the top plate is attached to the inner wall of the upper valve body, the lower surface of the top plate is fixedly connected with a fixed block, a spring is fixedly connected to the fixed block on the fixed block, the lower end of the spring is fixedly connected with a movable block, the movable block is connected with the upper cavity in a sliding mode, the upper surface of the bottom plate is fixedly connected with a connecting rod connected with the lower valve body in a sliding mode, the upper end of the connecting rod penetrates through the lower valve body, the upper end of the connecting rod is fixedly connected with the movable block, two liquid channels communicated with the two pipelines respectively are formed in the lower valve body, the lower surface of the bottom plate is fixedly connected with a reset spring, and the lower end of the reset spring is fixedly connected with the lower cavity.

Preferably, the upper chamber and the lower chamber are not communicated with each other, and the upper chamber is communicated with the upper valve body.

Preferably, the upper end of the connecting rod penetrates through the lower valve body.

Preferably, the two liquid channels are both in an inverted L shape, the two liquid channels are not communicated with each other, and the lower ends of the two liquid channels are both communicated with the lower chamber.

The utility model discloses beneficial effect who has:

1. this automatic adjustment relief pressure valve, under conventional state, reset spring promotes the bottom plate rebound, shelter from the lower extreme of two liquid passage and then keep apart liquid passage and lower cavity, when liquid volume increases in the pipeline leads to liquid pressure to rise, liquid passes through liquid passage flow direction bottom plate, utilize high liquid pressure to extrude the bottom plate, and then drive bottom plate rebound, thereby make liquid passage and lower cavity communicate with each other, make liquid pass through liquid passage and get into in the lower cavity, later liquid is discharged from the liquid passage of the other end, and then accomplish the step-down, compare with traditional artifical pressure regulating, the device utilizes the pressure of liquid, trigger the pressure regulating device, thereby can play the effect of a pressure regulating at the very first time, the pipeline damage that long-term pressure too high leads to has been avoided.

2. This automatic adjustment relief pressure valve, it rotates to drive the threaded rod through rotating the hand wheel, the threaded rod moves and then drives the roof and move when pivoted, the roof drives the fixed block and removes, the fixed block moves up and drags the spring, and then adjust the pitch of spring, thereby the elastic potential energy of adjustment spring, can come the elastic potential energy of regulating spring according to the size of connecting tube and the flow of liquid through the setting of the device, thereby the application scope of the device has been promoted, set up the pressure regulating device according to the flow of difference simultaneously, the suitability of the device has been promoted.

Drawings

FIG. 1 is a schematic view of an automatic adjusting pressure reducing valve of the present invention;

FIG. 2 is a schematic view of an internal plane structure of an automatic adjusting pressure reducing valve of the present invention;

fig. 3 is a schematic structural view of the pressure regulating device of the automatic adjusting pressure reducing valve of the present invention.

In the figure: 1. an upper valve body; 2. a lower valve body; 3. a pipeline; 4. a pressure gauge; 5. a hand wheel; 6. a threaded rod; 7. a top plate; 8. a fixed block; 9. a spring; 10. an upper chamber; 11. connecting blocks; 12. a moving block; 13. a connecting rod; 14. a base plate; 15. a lower chamber; 16. a return spring; 17. a liquid passage.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): an automatic adjustment pressure reducing valve comprises an upper valve body 1, the interior of the upper valve body 1 is of a hollow structure, the bottom surface of the upper valve body 1 is fixedly connected with a lower valve body 2, the diameter of the lower valve body 2 is larger than that of the upper valve body 1, the left surface and the right surface of the lower valve body 2 are both fixedly connected with a pipeline 3, the upper surface of the pipeline 3 is fixedly connected with a pressure gauge 4, the pressure gauge 4 is of an existing structure, too much description is not needed, when the device is used, when a liquid source enters the lower valve body 2 through the pipeline 3, the pressure gauge 4 tests the liquid pressure in the pipeline, so that the liquid pressure test is completed, the top surface of the upper valve body 1 is in threaded connection with a threaded rod 6, the upper end of the threaded rod 6 is fixedly connected with a hand wheel 5, the lower end of the threaded rod 6 penetrates through the upper valve body 1, a pressure adjusting device is arranged in the interior of the upper valve body 1, the pressure adjusting device comprises a top plate 7, and the top plate 7 is fixedly connected with the lower end of the threaded rod 6, the top plate 7 is attached to the inner wall of the upper valve body 1, the inner wall of the upper valve body 1 is attached to the top plate 7, the top plate 7 can slide in the upper valve body 1, the lower surface of the top plate 7 is fixedly connected with a fixed block 8, a spring 9 is fixedly sleeved on the fixed block 8, the lower end of the spring 9 is fixedly connected with a connecting block 11, and the lower end of the connecting block 11 is fixedly connected with a moving block 12;

an upper chamber 10 and a lower chamber 15 are arranged in the lower valve body 2, the upper chamber 10 and the lower chamber 15 are respectively arranged at the upper end and the lower end of the lower valve body 2, the upper chamber 10 and the lower chamber 15 are not communicated with each other, the upper chamber 10 is communicated with the upper valve body 1, a moving block 12 is connected with the upper chamber 10 in a sliding manner, the moving block 12 can slide in the upper chamber 10, when the device is used, the threaded rod 6 is driven to rotate by rotating the hand wheel 5, the threaded rod 6 moves while rotating to drive the top plate 7 to move, the top plate 7 drives the fixed block 8 to move, the fixed block 8 moves upwards to pull the spring 9, the screw pitch of the spring 9 is adjusted, the elastic potential energy of the spring 9 is adjusted, the moving block 12 is pulled upwards by the connecting block 11 while pulling the spring 9, when the moving block 12 moves upwards to the intersection of the upper chamber 10 and the upper valve body 1, the moving block 12 is fixed by utilizing the diameter difference between the upper valve body 1 and the lower valve body 2, and the moving block 12 separates the upper chamber 10 from the upper valve body 1;

when the device is used, firstly, in a conventional state, the return spring 16 pushes the bottom plate 14 to move upwards to shield the lower ends of the two liquid channels 17 so as to isolate the liquid channels 17 from the lower chamber 15, when the liquid quantity in the pipeline 3 is increased to cause the liquid to rise, the liquid flows to the bottom plate 14 through the liquid channel 17, the bottom plate 14 is squeezed by high liquid pressure, the bottom plate 14 is driven to move downwards, the liquid channel 17 is communicated with the lower chamber 15, the liquid enters the lower chamber 15 through the liquid channel 17, then the liquid is discharged from the liquid channel 17 at the other end, the pressure reduction is finished, and after the liquid pressure is reduced, the bottom plate 14 is pushed upwards again by the return spring 16 to separate the liquid channel 17 from the lower chamber 15.

The principle of the utility model is as follows:

when the device is used, firstly, the hand wheel 5 is rotated to drive the threaded rod 6 to rotate, the threaded rod 6 moves while rotating to drive the top plate 7 to move, the top plate 7 drives the fixed block 8 to move, the fixed block 8 moves upwards to pull the spring 9, and then the thread pitch of the spring 9 is adjusted, so that the elastic potential energy of the spring 9 is adjusted, the spring 9 is pulled and the movable block 12 moves upwards through the connecting block 11, when the movable block 12 moves upwards to the junction of the upper chamber 10 and the upper valve body 1, the movable block 12 is fixed by using the diameter difference between the upper valve body 1 and the lower valve body 2, and then when the liquid amount in the pipeline 3 increases to cause the liquid to rise, the liquid flows to the bottom plate 14 through the liquid channel 17, the bottom plate 14 is extruded by using high liquid pressure, and then the bottom plate 14 is driven to move downwards, so that the liquid channel 17 is communicated with the lower chamber 15, so that the liquid enters the lower chamber 15 through the liquid passage 17, and then the liquid is discharged from the liquid passage 17 at the other end, thereby completing the depressurization, and finally the bottom plate 14 is pushed upwards again by the return spring 16 to isolate the liquid passage 17 from the lower chamber 15 after the liquid pressure is reduced.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.

Claims

1. The utility model provides an automatic adjustment relief pressure valve, includes valve body (1), goes up the inside of valve body (1) and is hollow structure, goes up valve body (2) under the bottom surface fixedly connected with of valve body (1), pipeline (3) of two mirror images of outer wall fixedly connected with of lower valve body (2), and the last fixed surface of pipeline (3) is connected with manometer (4), the top surface threaded connection who goes up valve body (1) has threaded rod (6), upper end fixedly connected with hand wheel (5) of threaded rod (6), and the lower extreme of threaded rod (6) runs through valve body (1), its characterized in that: go up the inside of valve body (1) and be provided with the pressure regulating device, last cavity (10) and lower cavity (15) have been seted up respectively to the upper and lower end of the inside of lower valve body (2), and the inside of lower cavity (15) is provided with bottom plate (14) that can slide.

2. An automatically adjusting pressure reducing valve according to claim 1, wherein: the pressure regulating device comprises a top plate (7), the top plate (7) is fixedly connected to the lower end of a threaded rod (6), the top plate (7) is attached to the inner wall of an upper valve body (1), a fixed block (8) is fixedly connected to the lower surface of the top plate (7), a spring (9) is fixedly connected to the fixed block (8), a connecting block (11) is fixedly connected to the lower end of the spring (9), a moving block (12) is fixedly connected to the lower end of the connecting block (11), and the moving block (12) is connected with an upper chamber (10) in a sliding mode.

3. An automatically adjusting pressure reducing valve according to claim 2, wherein: the upper surface of the bottom plate (14) is fixedly connected with a connecting rod (13) which is in sliding connection with the lower valve body (2), the upper end of the connecting rod (13) penetrates through the lower valve body (2), and the upper end of the connecting rod (13) is fixedly connected with the moving block (12).

4. An automatically adjusting pressure reducing valve according to claim 1, wherein: two liquid channels (17) which are respectively communicated with the two pipelines (3) are arranged in the lower valve body (2), and the two liquid channels (17) are in an inverted L shape.

5. An automatically adjusting pressure reducing valve according to claim 4, wherein: the lower surface of the bottom plate (14) is fixedly connected with a return spring (16), and the lower end of the return spring (16) is fixedly connected with the lower chamber (15).