High-pressure self-operated pressure regulating valve

Abstract

The utility model relates to the technical field of pressure regulating valves, and discloses a high-pressure self-operated pressure regulating valve. Comprising a valve body, a feeding pipe and a discharging pipe are arranged at the bottom of the valve body, a cavity is formed in the inner wall of the valve body, a pressing disc is arranged on the inner wall, located in the cavity, of the valve body, a first spring is fixedly connected to the side wall of the pressing disc, and a sealing insertion block is fixedly connected to the end, away from the pressing disc, of the first spring; the inner wall, located in the cavity, of the valve body is fixedly connected with a sealing baffle ring, and the sealing insertion block is tightly inserted into the inner wall of the sealing baffle ring. When fluid enters the cavity and needs to reach a certain pressure to push the sealing insertion block to move, the first spring is compressed, the fluid can flow out along the discharging pipe through the sealing baffle ring, the fluid can flow out at a certain pressure, and the stability of the pressure of the fluid in the pipeline can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure regulating valves, in particular to a high-pressure self-operated pressure regulating valve. Background Art

[0002] A pressure regulating valve is a device used to control the pressure in a fluid system. It can automatically adjust the pressure in a pipeline or container to ensure that the system operates within a set safety range. Pressure regulating valves are commonly used in various industrial applications, including petroleum, chemical, water treatment, water supply systems, etc.

[0003] In the prior art, pressure regulating valves require manual control to adjust the internal valve clearance according to usage requirements. They cannot automatically adjust according to the real-time pressure of the liquid inside the pipeline. Furthermore, when used inside high-pressure pipelines, this is labor-intensive and affects the regulation effect. Therefore, the present invention designs a high-pressure self-operated pressure regulating valve. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that during the use of the pressure regulating valve, the gap size of the internal valve needs to be manually controlled to adjust according to the use requirements, and the valve cannot be automatically adjusted according to the real-time situation of the liquid pressure inside the pipeline. Moreover, it is more laborious to use it inside the high-pressure pipeline, which affects the adjustment effect. A high-pressure self-operated pressure regulating valve is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A high-pressure self-operated pressure regulating valve comprises a valve body, a feed pipe and a discharge pipe are provided at the bottom of the valve body, a cavity is opened on the inner wall of the valve body, a pressure plate is provided on the inner wall of the valve body located in the cavity, a first spring is fixedly connected to the side wall of the pressure plate, a sealing plug is fixedly connected to the end of the first spring facing away from the pressure plate, a sealing retaining ring is fixedly connected to the inner wall of the valve body located in the cavity, the sealing plug is tightly inserted into the inner wall of the sealing retaining ring, a cylinder is provided on the inner wall of the top end of the valve body, a pressure block is slidably provided on the inner wall of the cylinder, a second spring is fixedly connected to the top end of the pressure block, and a pressure relief pipe is provided on the cylinder wall of the cylinder.

[0007] Preferably, a rubber sealing ring is fixedly connected to the inner wall of the sealing retaining ring, and the end of the sealing plug facing away from the first spring is configured as a hemisphere and is pressed against the inner wall of the rubber sealing ring.

[0008] Preferably, the top of the pressing block is fixedly connected to a switching block, the upper surface of the valve body is provided with a controller, the top of the cylinder is provided with an alarm, and the connection terminals of the controller and the alarm extend to the inner wall of the top of the cylinder respectively.

[0009] Preferably, a guide block is fixedly connected to the side wall of the pressing block, a guide groove is opened on the inner wall of the cylinder, and the guide block is slidably arranged on the inner wall of the guide groove.

[0010] Preferably, the end of the pressure plate facing away from the first spring is rotatably connected to a pull rod, a recess is provided on the side wall of the valve body, the rod wall of the pull rod passes through the valve body and extends to the inside of the recess and is fixedly connected to a pull handle.

[0011] Preferably, the inner wall of the valve body is fixedly connected to a box body, a plurality of limiting grooves are provided on the rod wall of the pull rod, and a limiting mechanism is provided on the inner wall of the box body.

[0012] Preferably, the limiting mechanism includes an elastic strip and a limiting block, the limiting block is slidably arranged on the inner wall of the box body, the elastic strip is fixedly connected to the inner wall of the box body, the elastic strip is fixedly connected to the limiting block at one end relative to the pull rod, and the limiting block is plugged into the inner wall of the pull rod in the limiting groove.

[0013] Preferably, a pull rope is fixedly connected to the connection between the limit block and the elastic strip, and one end of the pull rope away from the limit block extends to the inner wall of the valve body located in the recess and is fixedly connected to a pull ring.

[0014] Preferably, a sealing ring is provided on the inner wall of the valve body located at the recess, and the inner wall of the sealing ring is pressed tightly against the rod wall of the pull rod.

[0015] Compared with the prior art, the present invention provides a high-pressure self-operated pressure regulating valve with the following beneficial effects:

[0016] 1. This high-pressure self-operated pressure regulating valve requires that the fluid enter the cavity and reach a certain pressure before it can push the sealing plug to move. When the first spring is compressed, the fluid can flow out along the discharge pipe through the sealing ring, so that the fluid can maintain a certain pressure to flow out, which can improve the stability of the fluid pressure inside the pipeline.

[0017] 2. This high-pressure self-operated pressure regulating valve, if the fluid pressure is too high, the over-pressure fluid will push the pressure block up, causing the adapter block to rise and drive the second spring to compress, so that part of the fluid can flow out through the pressure relief pipe, and the pressure relief can be carried out. After the adapter block rises, it will contact the connection terminals of the controller and the alarm, so that the controller can drive the alarm through the adapter block, which can remind personnel to deal with it in time.

[0018] 3. This high-pressure self-operated pressure regulating valve can drive the pull rod to move by pulling the pull handle, and the pull rod can pull the pressure plate to move. The movement of the pressure plate can control the compression degree of the first spring, and can adjust the pressure of the sealing plug pressed on the side wall of the sealing retaining ring. The sealing ring can improve the sealing performance of the pull rod on the inner wall of the valve body.

[0019] 4. This high-pressure self-operated pressure regulating valve pushes the limit block to extend to the inner wall of the limit groove through the elastic strip, which can improve the stability of the pull rod in the inner wall of the box body and facilitate the stable use of the pull rod. Pulling the pull ring can pull the pull rope to move, and the pull rope moving rod can make the limit block shrink to the inner wall of the box body, which can facilitate subsequent adjustment of the pull rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a high-pressure self-operated pressure regulating valve proposed by the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure of the partial A in the middle part;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure of the partial B in the middle part;

[0023] Figure 4 for Figure 1 Structural stereogram of the intermediate pressure block;

[0024] Figure 5 for Figure 1 A three-dimensional diagram of the structure of the intermediate pressure plate.

[0025] In the figure: 1 valve body, 2 feed pipe, 3 discharge pipe, 4 pressure plate, 5 first spring, 6 sealing insert, 7 sealing retaining ring, 8 rubber sealing ring, 9 cylinder, 10 pressure block, 11 second spring, 12 pressure relief pipe, 13 adapter block, 14 controller, 15 alarm, 16 guide block, 17 pull rod, 18 pull handle, 19 box body, 20 limit block, 21 elastic strip, 22 pull rope, 23 pull ring, 24 sealing ring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example 1

[0028] Reference Figure 1-5A high-pressure self-operated pressure regulating valve comprises a valve body 1, a feed pipe 2 and a discharge pipe 3 are provided at the bottom of the valve body 1, a cavity is opened on the inner wall of the valve body 1, a pressure plate 4 is provided on the inner wall of the valve body 1 located in the cavity, a first spring 5 is fixedly connected to the side wall of the pressure plate 4, a sealing plug 6 is fixedly connected to the end of the first spring 5 facing away from the pressure plate 4, a sealing retaining ring 7 is fixedly connected to the inner wall of the valve body 1 located in the cavity, the sealing plug 6 is tightly inserted into the inner wall of the sealing retaining ring 7, a cylinder 9 is provided on the inner wall of the top end of the valve body 1, a pressure block 10 is slidably provided on the inner wall of the cylinder 9, a second spring 11 is fixedly connected to the top of the pressure block 10, and a pressure relief pipe 12 is provided on the wall of the cylinder 9.

[0029] The inner wall of the sealing retaining ring 7 is fixedly connected to a rubber sealing ring 8, the end of the sealing plug 6 facing away from the first spring 5 is set as a hemisphere and is pressed against the inner wall of the rubber sealing ring 8, the top of the pressure block 10 is fixedly connected to a transfer block 13, the upper surface of the valve body 1 is provided with a controller 14, the top of the cylinder 9 is provided with an alarm 15, the connection terminals of the controller 14 and the alarm 15 respectively extend to the inner wall of the top end of the cylinder 9, a guide block 16 is fixedly connected to the side wall of the pressure block 10, a guide groove is opened on the inner wall of the cylinder 9, and the guide block 16 is slidably set on the inner wall of the guide groove.

[0030] During use, the transported fluid can flow through the valve body 1 through the feed pipe 2 and the discharge pipe 3. After the fluid enters the interior of the cavity, it needs to reach a certain pressure before it can push the sealing plug 6 to move. When the first spring 5 is compressed, the fluid can pass through the sealing ring 7 and flow out along the discharge pipe 3. The fluid can maintain a certain pressure to flow out, which can improve the stability of the fluid pressure inside the pipeline.

[0031] If the fluid pressure is too high, the over-pressure fluid will push the pressure block 10 to rise, causing the adapter block 13 to rise and drive the second spring 11 to compress, so that part of the fluid can flow out through the pressure relief pipe 12, and the pressure relief treatment can be carried out. After the adapter block 13 rises, it will contact the connection terminals of the controller 14 and the alarm 15, so that the controller 14 can drive the alarm 15 through the adapter block 13, which can remind personnel to deal with it in time.

[0032] Example 2

[0033] Reference Figure 1-5 The end of the pressure plate 4 facing away from the first spring 5 is rotatably connected to the pull rod 17. A recess is provided on the side wall of the valve body 1. The rod wall of the pull rod 17 passes through the valve body 1 and extends to the inside of the recess and is fixedly connected to the pull handle 18. The inner wall of the valve body 1 is fixedly connected to the box body 19. A plurality of limiting grooves are provided on the rod wall of the pull rod 17. A sealing ring 24 is provided on the inner wall of the valve body 1 located in the recess, and the inner wall of the sealing ring 24 is tightly set on the rod wall of the pull rod 17.

[0034] Pulling the handle 18 can drive the pull rod 17 to move, and the pull rod 17 can pull the pressure plate 4 to move. The movement of the pressure plate 4 can control the degree of compression of the first spring 5, thereby adjusting the pressure of the sealing block 6 pressed against the side wall of the sealing retaining ring 7. The sealing ring 24 can improve the sealing performance of the pull rod 17 on the inner wall of the valve body 1.

[0035] Example 3

[0036] Reference Figure 1-5 A limiting mechanism is provided on the inner wall of the box body 19, and the limiting mechanism includes an elastic strip 21 and a limiting block 20. The limiting block 20 is slidably arranged on the inner wall of the box body 19, and the elastic strip 21 is fixedly connected to the inner wall of the box body 19. One end of the elastic strip 21 relative to the pull rod 17 is fixedly connected to the limiting block 20, and the limiting block 20 is plugged into the inner wall of the pull rod 17 located in the limiting groove. A pull rope 22 is fixedly connected to the connection between the limit block 20 and the elastic strip 21, and the end of the pull rope 22 away from the limit block 20 extends to the inner wall of the valve body 1 located in the recess and is fixedly connected to a pull ring 23.

[0037] The elastic strip 21 pushes the limit block 20 to extend to the inner wall of the limit groove, which can improve the stability of the pull rod 17 on the inner wall of the box body 19 and facilitate the stable use of the pull rod 17. Pulling the pull ring 23 can pull the pull rope 22 to move, and the pull rope 22 moves the rod to make the limit block 20 shrink to the inner wall of the box body 19, which can facilitate subsequent adjustment of the pull rod 17.

[0038] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-pressure self-operated pressure regulating valve, comprising a valve body (1), characterized in that: The bottom of the valve body (1) is provided with a feed pipe (2) and a discharge pipe (3), the inner wall of the valve body (1) is provided with a cavity, the inner wall of the valve body (1) located in the cavity is provided with a pressure plate (4), the side wall of the pressure plate (4) is fixedly connected with a first spring (5), the end of the first spring (5) facing away from the pressure plate (4) is fixedly connected with a sealing plug (6), the inner wall of the valve body (1) located in the cavity is fixedly connected with a sealing retaining ring (7), the sealing plug (6) is tightly inserted into the inner wall of the sealing retaining ring (7), the top inner wall of the valve body (1) is provided with a cylinder (9), the inner wall of the cylinder (9) is slidably provided with a pressure block (10), the top end of the pressure block (10) is fixedly connected with a second spring (11), and the cylinder wall of the cylinder (9) is provided with a pressure relief pipe (12).

2. A high-pressure self-operated pressure regulating valve according to claim 1, characterized in that: The inner wall of the sealing retaining ring (7) is fixedly connected to a rubber sealing ring (8); the end of the sealing insert (6) facing away from the first spring (5) is configured as a hemisphere and is pressed against the inner wall of the rubber sealing ring (8).

3. A high-pressure self-operated pressure regulating valve according to claim 1, characterized in that: The top end of the pressure block (10) is fixedly connected to a transfer block (13), the upper surface of the valve body (1) is provided with a controller (14), the top end of the cylinder (9) is provided with an alarm (15), and the connection terminals of the controller (14) and the alarm (15) respectively extend to the inner wall of the top end of the cylinder (9).

4. A high-pressure self-operated pressure regulating valve according to claim 1, characterized in that: A guide block (16) is fixedly connected to the side wall of the pressing block (10), a guide groove is provided on the inner wall of the cylinder (9), and the guide block (16) is slidably arranged on the inner wall of the guide groove.

5. The high-pressure self-operated pressure regulating valve according to claim 1, characterized in that: The end of the pressure plate (4) facing away from the first spring (5) is rotatably connected to a pull rod (17), a recess is provided on the side wall of the valve body (1), the rod wall of the pull rod (17) passes through the valve body (1) and extends to the inside of the recess and is fixedly connected to a pull handle (18).

6. A high-pressure self-operated pressure regulating valve according to claim 5, characterized in that: The inner wall of the valve body (1) is fixedly connected to a box body (19), a plurality of limiting grooves are provided on the rod wall of the pull rod (17), and a limiting mechanism is provided on the inner wall of the box body (19).

7. A high-pressure self-operated pressure regulating valve according to claim 6, characterized in that: The limiting mechanism includes an elastic strip (21) and a limiting block (20), wherein the limiting block (20) is slidably arranged on the inner wall of the box body (19), and the elastic strip (21) is fixedly connected to the inner wall of the box body (19). One end of the elastic strip (21) relative to the pull rod (17) is fixedly connected to the limiting block (20), and the limiting block (20) is plugged into the inner wall of the pull rod (17) located in the limiting groove.

8. The high-pressure self-operated pressure regulating valve according to claim 7, characterized in that: A pull rope (22) is fixedly connected to the connection between the limit block (20) and the elastic strip (21); one end of the pull rope (22) facing away from the limit block (20) extends to the inner wall of the valve body (1) located in the recess and is fixedly connected to a pull ring (23).

9. The high-pressure self-operated pressure regulating valve according to claim 1, characterized in that: The inner wall of the valve body (1) located at the recess is provided with a sealing ring (24), and the inner wall of the sealing ring (24) is tightly arranged on the rod wall of the pull rod (17).

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