Adjusting type one-way pressure release valve

Abstract

The utility model discloses an adjustable one-way pressure release valve which comprises a pressure release valve body. A pressure relief module is arranged on the pressure relief valve main body, a pressure adjusting module is arranged on the pressure relief valve main body, a mounting module is arranged in the pressure relief valve main body, a bottom sealing block is mounted in the pressure relief valve main body, a side sealing block is mounted in the pressure relief valve main body, the pressure relief module comprises a pressure relief mounting sleeve, and the pressure relief mounting sleeve is mounted above the pressure relief valve main body; according to the pressure relief valve, the interior of the pressure relief valve body is blocked through the pressure relief plug rod, water flow cannot circulate in the normal state, when pressure is too large, the water flow abuts against the bottom face of the pressure relief plug rod, the pressure relief plug rod is lifted, and therefore the front portion and the rear portion of the pressure relief valve body are smooth, and pressure relief is conducted; the pressure relief module is matched with the pressure adjusting module to achieve the function of adjusting pressure, the adjusting knob is rotated, the adjusting knob compresses the adjusting spring, water flow needs to lift the adjusting pressing rod, and the pressure relief threshold value is conveniently adjusted according to the actual situation.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure relief valves, in particular to an adjustable one-way pressure relief valve. Background Art

[0002] Pressure relief valves, also known as safety valves, can automatically open and close according to the working pressure of the system. They are usually installed on equipment or pipelines in closed systems to protect the safety of the system. However, most pressure relief valves are fixed-pressure relief valves, which cannot adjust the pressure relief pressure according to actual use requirements. If the required pressure relief pressure changes, the pressure relief valve needs to be replaced.

[0003] The existing pressure relief valve connects the pipeline to the pressure relief valve through fixing bolts, and there is no sealing device at the connection port, which can easily cause water leakage at the connection, increase the difficulty of installation, and also cause leakage, increasing safety hazards. Therefore, an adjustable one-way pressure relief valve is needed to meet people's needs. Utility Model Content

[0004] The purpose of the utility model is to provide an adjustable one-way pressure relief valve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable one-way pressure relief valve, comprising a pressure relief valve body; a pressure relief module is provided on the pressure relief valve body, a pressure regulating module is provided on the pressure relief valve body, a mounting module is provided in the pressure relief valve body, a bottom sealing block is installed in the pressure relief valve body, and a side sealing block is installed in the pressure relief valve body;

[0006] Preferably, the pressure relief module includes a pressure relief mounting sleeve, which is installed above the pressure relief valve body, a pressure relief spring fixing block is fixedly installed in the pressure relief mounting sleeve, a pressure relief spring is installed below the pressure relief spring fixing block, a pressure relief connecting rod is installed in the pressure relief spring fixing block, a pressure relief plug rod is installed below the pressure relief connecting rod, and a pressure relief valve plate is installed on the pressure relief connecting rod.

[0007] Preferably, a pressure relief sleeve inner cavity is opened in the pressure relief mounting sleeve, the pressure relief spring fixing block and the pressure relief valve plate are installed in the pressure relief sleeve inner cavity, a hole is opened on the pressure relief spring fixing block, the pressure relief connecting rod is installed in the hole, and a connecting groove is opened on the pressure relief mounting sleeve.

[0008] Preferably, the pressure regulating module includes an adjusting mounting sleeve, which is installed on the pressure relief mounting sleeve, an adjusting fixing plate is installed in the adjusting mounting sleeve, an adjusting pressure rod is installed in the adjusting fixing plate, an adjusting pressure rod plate is installed above the adjusting pressure rod, an adjusting spring is installed on the adjusting pressure rod plate, an adjusting knob pressure plate is installed on the adjusting spring, and an adjusting knob is installed on the adjusting knob pressure plate.

[0009] Preferably, an adjusting sleeve inner cavity is opened in the adjusting sleeve, the adjusting fixing plate is installed in the adjusting sleeve inner cavity, an adjusting water inlet pipe is installed on one side of the adjusting sleeve close to the connecting groove, and an adjusting water outlet pipe is installed on the other side of the adjusting sleeve.

[0010] Preferably, a partition block is installed on one side of the adjusting pressure rod, and the partition block is installed below the adjusting fixing plate.

[0011] Preferably, the mounting module comprises a mounting clamp ring, a mounting threaded hole is formed on the mounting clamp ring, a docking groove is formed on the mounting clamp ring, a sealing ring groove is formed in the docking groove, and a sealing ring is installed in the sealing ring groove.

[0012] Preferably, an upper pressure relief port is opened on the pressure relief valve body, the pressure relief mounting sleeve is installed in the upper pressure relief port, a main body water inlet is opened on the side of the pressure relief valve body close to the regulating water inlet pipe, and a main body water outlet is opened on the other side of the pressure relief valve body, one end of the regulating water inlet pipe is installed in the main body water inlet, and one end of the regulating water outlet pipe is installed in the main body water outlet.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The utility model blocks the inside of the pressure relief valve body by means of a pressure relief plug rod, so that water cannot flow under normal conditions. When the pressure is too high, the water presses against the bottom surface of the pressure relief plug rod, causing the pressure relief plug rod to rise, thereby making the pressure relief valve body unobstructed from front to back and thus releasing pressure. The pressure can be adjusted by cooperating with the pressure regulating module through the pressure relief module. By turning the regulating knob, the regulating knob compresses the regulating spring, so that the water flow lifts the regulating rod, which requires a greater pressure, thereby facilitating the adjustment of the pressure relief threshold according to actual conditions.

[0015] (2) By clamping the pipe into the docking groove and fixing the pipe and equipment with bolts through the threaded holes, when the bolts are tightened, the pipe squeezes the sealing ring, and the sealing ring is squeezed and deformed by force to generate contact pressure on the contact surface, thereby forming a sealing effect and avoiding gaps during installation that may cause water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the adjustable one-way pressure relief valve proposed by the utility model;

[0017] Figure 2 It is a structural schematic diagram of the pressure relief valve body and the pressure relief connecting rod of the adjustable one-way pressure relief valve proposed by the utility model;

[0018] Figure 3 It is a structural schematic diagram of the side sealing block and sealing ring of the adjustable one-way pressure relief valve proposed by the utility model;

[0019] Figure 4 It is a structural schematic diagram of the pressure relief installation sleeve and the pressure relief plug rod of the adjustable one-way pressure relief valve proposed by the utility model;

[0020] Figure 5 The utility model discloses a schematic diagram of the structure of the regulating installation sleeve and the regulating pressure rod of the regulating one-way pressure relief valve.

[0021] In the figure: 1. Pressure relief valve body; 2. Pressure relief module; 3. Pressure regulating module; 4. Installation module; 5. Water inlet of the body; 6. Water outlet of the body; 7. Bottom sealing block; 8. Side sealing block; 9. Upper pressure relief port; 200. Pressure relief connecting rod; 201. Pressure relief spring; 202. Pressure relief spring fixing block; 203. Pressure relief installation sleeve; 204. Inner cavity of pressure relief sleeve; 205. Connecting groove; 206. Pressure relief plug rod; 207. Pressure relief valve plate; 3 00, adjusting the installation sleeve; 301, adjusting the pressure rod; 302, adjusting the inner cavity of the sleeve; 303, adjusting the fixing plate; 304, adjusting the pressure rod plate; 305, adjusting the spring; 306, adjusting the knob; 307, adjusting the knob pressure plate; 308, adjusting the water inlet pipe; 309, adjusting the water outlet pipe; 310, dividing block; 400, installing the clamping ring; 401, installing the threaded hole; 402, docking groove; 403, sealing ring groove; 404, sealing ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Please refer to Figure 1-5 The utility model provides a technical solution: an adjustable one-way pressure relief valve, including a pressure relief valve body 1; in order to facilitate the adjustment of the pressure relief pressure and increase the installation sealing, a pressure relief module 2 is provided on the pressure relief valve body 1, a pressure regulating module 3 is provided on the pressure relief valve body 1, an installation module 4 is provided in the pressure relief valve body 1, a bottom sealing block 7 is installed in the pressure relief valve body 1, a side sealing block 8 is installed in the pressure relief valve body 1, pressure is released through the pressure relief module 2, the pressure relief trigger pressure value is adjusted through the pressure regulating module 3, and the pipeline is installed through the installation module 4;

[0024] In order to achieve the effect of adjustable pressure relief, the pressure relief module 2 includes a pressure relief mounting sleeve 203, which is installed above the pressure relief valve body 1, and a pressure relief spring fixing block 202 is fixedly installed in the pressure relief mounting sleeve 203, and a pressure relief spring 201 is installed below the pressure relief spring fixing block 202, a pressure relief connecting rod 200 is installed in the pressure relief spring fixing block 202, and a pressure relief plug rod 206 is installed below the pressure relief connecting rod 200, and a pressure relief valve plate 207 is installed on the pressure relief connecting rod 200, and a pressure relief sleeve inner cavity 204 is opened in the pressure relief mounting sleeve 203, and the pressure relief spring fixing block 202 and the pressure relief valve plate 207 are installed in the pressure relief sleeve inner cavity 204, and a hole is opened on the pressure relief spring fixing block 202, and the pressure relief connecting rod 200 is installed in the hole, and the pressure relief mounting sleeve 203 is opened. There is a connecting groove 205, the pressure regulating module 3 includes an adjusting installation sleeve 300, the adjusting installation sleeve 300 is installed on the pressure relief installation sleeve 203, an adjusting fixing plate 303 is installed in the adjusting installation sleeve 300, an adjusting pressure rod 301 is installed in the adjusting fixing plate 303, an adjusting pressure rod plate 304 is installed above the adjusting pressure rod 301, an adjusting spring 305 is installed on the adjusting pressure rod plate 304, an adjusting knob pressure plate 307 is installed on the adjusting spring 305, an adjusting knob pressure plate 306 is installed on the adjusting knob pressure plate 307, an adjusting sleeve inner cavity 302 is opened in the adjusting installation sleeve 300, the adjusting fixing plate 303 is installed in the adjusting sleeve inner cavity 302, an adjusting water inlet pipe 308 is installed on the side of the adjusting installation sleeve 300 close to the connecting groove 205, and the adjusting installation sleeve An adjusting water outlet pipe 309 is installed on the other side of 300, a dividing block 310 is installed on one side of the adjusting pressure rod 301, and the dividing block 310 is installed below the adjusting fixing plate 303. An upper pressure relief port 9 is opened on the pressure relief valve body 1, and the pressure relief installation sleeve 203 is installed in the upper pressure relief port 9. A main body water inlet 5 is opened on the side of the pressure relief valve body 1 close to the adjusting water inlet pipe 308, and a main body water outlet 6 is opened on the other side of the pressure relief valve body 1. One end of the adjusting water inlet pipe 308 is installed in the main body water inlet 5, and one end of the adjusting water outlet pipe 309 is installed in the main body water outlet 6. Connect the main pipeline to the side close to the adjusting water inlet pipe 308, and connect the pressure relief loop pipeline to the side of the adjusting water outlet pipe 309. The water flow of the main pipeline flows into the pressure relief valve body 1. When the pressure does not reach the preset standard, the pressure relief plug Rod 206 is stuck in the pressure relief valve body 1, and cooperates with the bottom sealing block 7 and the side sealing block 8 to form a sealing effect, thereby preventing liquid from flowing into the pressure relief circuit pipeline. When the pressure of the main pipeline is too large and exceeds the preset standard, the water pressure lifts the pressure relief plug rod 206, and the pressure relief plug rod 206 pushes the pressure relief spring 201 to compress. At the same time, the pressure relief spring 201 pushes the pressure relief valve plate 207 to rise. When the pressure relief plug rod 206 is lifted up, the pressure relief valve body 1 is unobstructed, and the liquid can flow from the main pipeline into the pressure relief circuit pipeline through the pressure relief valve body 1. In order to adjust the preset pressure, the water flows into the adjusting fixed plate 303 through the adjusting water inlet pipe 308, and flows into the pressure relief sleeve inner cavity 204 above 208 through the connecting groove 205. At this time, the water flow generates a certain pressure on the pressure relief valve plate 207.The pressure required for the liquid to lift the pressure relief plug rod 206 can be increased. By turning the adjusting knob 306, the adjusting knob 306 drives the adjusting knob pressure plate 307 to move. When the adjusting knob pressure plate 307 moves downward, the adjusting spring 305 is compressed. When the adjusting knob pressure plate 307 moves upward, the pressure on the adjusting spring 305 is released. By adjusting the pressure on the adjusting spring 305, the pressure required for the liquid to lift the adjusting pressure rod 301 can be controlled. When the pressure is too large to lift the adjusting spring 305, the water flow first lifts the adjusting pressure rod 301, and the adjusting pressure rod 301 drives the adjusting pressure rod plate 304 to rise and lift the adjusting spring 305. After the adjusting pressure rod 301 is lifted, the liquid can enter the partition block 310. On one side, the liquid flows into the regulating outlet pipe 309. After the liquid in the liquid regulating fixed plate 303 flows into the regulating outlet pipe 309, the liquid pressure on the pressure relief valve plate 207 becomes smaller. At this time, the water flow can lift the pressure relief plug rod 206 to start pressure relief. When the pressure in the main pipeline becomes smaller, the liquid cannot lift the regulating pressure rod 301, so the regulating pressure rod 301 blocks the hole on the pressure relief installation sleeve 203. After the liquid enters the pressure relief installation sleeve 203 from the regulating water inlet pipe 308, it cannot flow into the regulating outlet pipe 309. At this time, the liquid pressure above the pressure relief valve plate 207 is increased again, thereby exerting pressure on the pressure relief connecting rod 200 and the pressure relief plug rod 206, driving the pressure relief plug rod 206 to descend, and the pressure relief function is closed at this time.

[0025] The working principle is: connect the main pipeline to one side of the regulating water inlet pipe 308, connect the pressure relief loop pipeline to one side of the regulating water outlet pipe 309, insert the pipeline into the sealing ring groove 403, align the pipeline with the installation threaded hole 401 on the installation clamp 400, and fix it with bolts. When fixing, the end face of the pipeline generates an extrusion force on the sealing ring 404, and the sealing ring 404 is squeezed and deformed by the force to generate contact pressure on the contact surface, thereby forming a sealing effect to avoid gaps during installation and water leakage. The water flow of the main pipeline flows into the pressure relief valve body 1. When the pressure does not reach the preset standard, the pressure relief plug rod 206 is stuck in the pressure relief valve body 1, and cooperates with the bottom sealing block 7 and the side sealing block 8 to form a sealing effect. , thereby preventing liquid from flowing into the pressure relief circuit pipeline. When the pressure of the main pipeline is too high and exceeds the preset standard, the water pressure lifts the pressure relief plug rod 206, and the pressure relief plug rod 206 pushes the pressure relief spring 201 to compress. At the same time, the pressure relief spring 201 pushes the pressure relief valve plate 207 to rise. When the pressure relief plug rod 206 is lifted up, the pressure relief valve body 1 is unobstructed, and the liquid can flow from the main pipeline into the pressure relief circuit pipeline through the pressure relief valve body 1. In order to adjust the preset pressure, the water flows into the adjusting fixed plate 303 through the adjusting water inlet pipe 308, and flows into the pressure relief sleeve inner cavity 204 above 208 through the connecting groove 205. At this time, the water flow generates a certain pressure on the pressure relief valve plate 207, which can increase the liquid to lift the pressure relief plug rod. 206, by turning the adjusting knob 306, the adjusting knob 306 drives the adjusting knob pressure plate 307 to move, and the adjusting knob pressure plate 307 compresses the adjusting spring 305 when it moves downward, and releases the pressure on the adjusting spring 305 when the adjusting knob pressure plate 307 moves upward. By adjusting the pressure on the adjusting spring 305, the pressure required for the liquid to lift the adjusting pressure rod 301 can be controlled. When the pressure is too large to lift the adjusting spring 305, the water flow first lifts the adjusting pressure rod 301, and the adjusting pressure rod 301 drives the adjusting pressure rod plate 304 to rise and lift the adjusting spring 305. After the adjusting pressure rod 301 is lifted, the liquid can enter one side of the partition block 310, thereby flowing After the liquid in the liquid regulating fixed plate 303 flows into the regulating water outlet pipe 309, the liquid pressure on the pressure relief valve plate 207 decreases. At this time, the water flow can lift the pressure relief plug rod 206 to start pressure relief. When the pressure in the main pipeline decreases, the liquid cannot lift the regulating pressure rod 301, so that the regulating pressure rod 301 blocks the hole on the pressure relief mounting sleeve 203. After the liquid enters the pressure relief mounting sleeve 203 from the regulating water inlet pipe 308, it cannot flow into the regulating water outlet pipe 309. At this time, the liquid pressure above the pressure relief valve plate 207 is increased again, thereby exerting pressure on the pressure relief connecting rod 200 and the pressure relief plug rod 206, driving the pressure relief plug rod 206 to descend, and the pressure relief function is closed at this time.

[0026] Example 2: Figure 1-3In order to achieve a sealing effect, the installation module 4 includes an installation clamp 400, a mounting threaded hole 401 is opened on the installation clamp 400, a docking groove 402 is opened on the installation clamp 400, a sealing ring groove 403 is opened in the docking groove 402, and a sealing ring 404 is installed in the sealing ring groove 403. The pipeline is inserted into the sealing ring groove 403, and the pipeline and the mounting threaded hole 401 on the installation clamp 400 are aligned, and they are fixed with bolts. When fixed, the end face of the pipeline generates an extrusion force on the sealing ring 404, and the sealing ring 404 is squeezed and deformed by the force to generate contact pressure on the contact surface, thereby forming a sealing effect to avoid gaps during installation and water leakage. The remaining features are the same as those in Example 1.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable one-way pressure relief valve, comprising a pressure relief valve body (1); characterized in that: The pressure relief valve body (1) is provided with a pressure relief module (2), the pressure relief valve body (1) is provided with a pressure regulating module (3), the pressure relief valve body (1) is provided with a mounting module (4), the pressure relief valve body (1) is provided with a bottom sealing block (7), and the pressure relief valve body (1) is provided with a side sealing block (8); The pressure relief module (2) comprises a pressure relief installation sleeve (203), the pressure relief installation sleeve (203) is installed above the pressure relief valve body (1), a pressure relief spring fixing block (202) is fixedly installed in the pressure relief installation sleeve (203), a pressure relief spring (201) is installed below the pressure relief spring fixing block (202), a pressure relief connecting rod (200) is installed in the pressure relief spring fixing block (202), a pressure relief plug rod (206) is installed below the pressure relief connecting rod (200), and a pressure relief valve plate (207) is installed on the pressure relief connecting rod (200).

2. The adjustable one-way pressure relief valve according to claim 1, characterized in that: The pressure relief installation sleeve (203) is provided with a pressure relief sleeve inner cavity (204), the pressure relief spring fixing block (202) and the pressure relief valve plate (207) are installed in the pressure relief sleeve inner cavity (204), the pressure relief spring fixing block (202) is provided with a hole, the pressure relief connecting rod (200) is installed in the hole, and the pressure relief installation sleeve (203) is provided with a connecting groove (205).

3. The adjustable one-way pressure relief valve according to claim 1, characterized in that: The pressure regulating module (3) comprises an adjusting mounting sleeve (300), wherein the adjusting mounting sleeve (300) is mounted on a pressure relief mounting sleeve (203), wherein an adjusting fixing plate (303) is mounted in the adjusting mounting sleeve (300), wherein an adjusting pressure rod (301) is mounted in the adjusting fixing plate (303), wherein an adjusting pressure rod plate (304) is mounted above the adjusting pressure rod (301), wherein an adjusting spring (305) is mounted on the adjusting pressure rod plate (304), wherein an adjusting knob pressure plate (307) is mounted on the adjusting spring (305), and wherein an adjusting knob (306) is mounted on the adjusting knob pressure plate (307).

4. The adjustable one-way pressure relief valve according to claim 3, characterized in that: The adjusting sleeve (300) has an adjusting sleeve inner cavity (302) formed therein, the adjusting fixing plate (303) is installed in the adjusting sleeve inner cavity (302), an adjusting water inlet pipe (308) is installed on one side of the adjusting sleeve (300) close to the connecting groove (205), and an adjusting water outlet pipe (309) is installed on the other side of the adjusting sleeve (300).

5. The adjustable one-way pressure relief valve according to claim 4, characterized in that: A partition block (310) is installed on one side of the adjusting pressure rod (301), and the partition block (310) is installed below the adjusting fixing plate (303).

6. The adjustable one-way pressure relief valve according to claim 1, characterized in that: The mounting module (4) comprises a mounting collar (400), the mounting collar (400) is provided with a mounting threaded hole (401), the mounting collar (400) is provided with a docking groove (402), a sealing ring groove (403) is provided in the docking groove (402), and a sealing ring (404) is installed in the sealing ring groove (403).

7. The adjustable one-way pressure relief valve according to claim 4, characterized in that: The pressure relief valve body (1) is provided with an upper pressure relief port (9), the pressure relief installation sleeve (203) is installed in the upper pressure relief port (9), the pressure relief valve body (1) is provided with a main body water inlet (5) on one side close to the regulating water inlet pipe (308), the pressure relief valve body (1) is provided with a main body water outlet (6) on the other side, one end of the regulating water inlet pipe (308) is installed in the main body water inlet (5), and one end of the regulating water outlet pipe (309) is installed in the main body water outlet (6).

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