Safety valve for pressure monitoring

Abstract

The invention discloses a safety valve for pressure monitoring, and relates to the technical field of pipeline valves, the safety valve comprises a valve seat assembly, the two ends of the valve seat assembly are connected with an external pipeline; the valve cover is mounted in the valve seat assembly; the pressure mechanism is connected with the valve cover, and the pressure mechanism is installed above the valve seat assembly and used for being matched with the valve cover to control opening and closing of the safety valve; in the practical application of the safety valve for pressure monitoring, due to the resistance of a fluid medium, the moving speed of the damping piston is controlled to be slowly increased, so that the opening process of the valve cover is stable, and internal vibration caused by rapid action is avoided; when the pressure in the pipeline returns to normal, the damping piston slowly descends to drive the valve cover to stably reset and close the channel; the process is accurately controlled through the damping piston, it is ensured that the speed of the valve deck in the whole up-down moving process is uniform and slow, the vibration phenomenon of the valve deck is effectively avoided, the operation stability of the safety valve is remarkably improved, and the service life of the safety valve is remarkably prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline valves, in particular to a safety valve for pressure monitoring. Background Art

[0002] In industrial production, chemical processing, energy, and various fluid delivery systems, pressure monitoring is a critical component in ensuring safe equipment operation. Fluctuations in internal pressure within pressure vessels and piping systems during operation can significantly impact the normal operation and safety of the equipment. Therefore, timely and accurate monitoring of pressure changes and effective pressure relief measures when pressure exceeds safety thresholds are crucial for ensuring safe system operation.

[0003] When system pressure fluctuates around the safety valve's set point, the valve will frequently open and close. This frequent movement can cause vibration in the valve cover and valve body. Specifically, when the pressure slightly exceeds the set point, the valve opens to release pressure; when the pressure drops below the set point, the valve closes. If this process occurs frequently, the valve cover will experience shock and vibration during opening and closing, which can affect sealing performance and service life.

[0004] When the medium flow rate is too high, turbulence may occur. Turbulence is the irregular flow caused by the high medium flow rate, which makes the pressure distribution inside the valve uneven, thereby causing vibration. For example, when a high-speed liquid or gas passes through the valve, cavitation or cavitation may occur, thereby causing vibration.

[0005] This frequent opening and closing not only increases the mechanical stress on the valve cover, but can also lead to increased wear of the sealing components, further affecting the performance of the safety valve. Furthermore, frequent opening and closing can interfere with the accuracy of pressure monitoring, preventing the system from obtaining timely and accurate pressure data. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention provides a safety valve for pressure monitoring, which solves the problem proposed in the background technology that the existing safety valve lacks an effective buffering and damping mechanism in design, cannot effectively reduce the vibration of the valve cover during the opening and closing process, and leads to a shortened valve life.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A safety valve for pressure monitoring, comprising: A valve seat assembly, both ends of which are connected to external pipelines; The valve cover is installed inside the valve seat assembly; A pressure mechanism connected to the valve cover, the pressure mechanism being installed above the valve seat assembly and used to cooperate with the valve cover to control the opening and closing of the safety valve; A positioning machine assembly is installed on one side of the pressure mechanism to position the internal components of the pressure mechanism; The pressure relief assembly is located inside the valve seat assembly and is used to relieve pressure inside the safety valve.

[0008] Preferably, the valve seat assembly includes a valve seat housing, wherein both ends of the valve seat housing are respectively provided with an outlet and an inlet for the pipeline medium, and sealing rings are embedded in the surfaces of both ends of the valve seat housing, and the sealing rings are distributed on the edges of both sides of the communicating groove. The surfaces of both ends of the valve seat housing are provided with communicating grooves, and the communicating grooves are annular in structure, and elastic pins are inserted into the interior of the communicating grooves. The elastic pin is in sliding contact with the inner wall of the valve seat housing, a positioning spring is sleeved on the outside of the elastic pin, and a limiting ring is provided at one end of the elastic pin, and the limiting ring is welded to the valve seat housing; By arranging connecting grooves and spring pin structures at both ends of the valve seat housing, real-time monitoring and timely warning of aging and leakage of the sealing ring are achieved. When the sealing performance of the connection between the valve seat housing and the external flange decreases and leakage occurs, the medium will enter the connecting groove, increasing the pressure in the connecting groove, thereby pushing the spring pin out. The operator can promptly discover the aging and leakage problem of the sealing ring through the pop-up of the spring pin and replace it in time to avoid safety hazards caused by sealing failure. At the same time, when the pressure in the connecting groove returns to normal, the spring pin can automatically reset under the action of the positioning spring, ensuring the normal operation of the device. This design not only improves the sealing reliability of the safety valve, but also enhances its pressure monitoring function, providing more effective protection for the safe operation of the system.

[0009] Preferably, the pressure mechanism includes a damping assembly sealing cover, an isolation pad is provided between the sealing cover and the valve seat housing, the damping assembly is provided inside the sealing cover, a main spring is provided above the damping assembly, the main spring is located above the damping assembly, a connecting rod passes through the damping assembly, one end of the bottom of the connecting rod is connected to the valve cover, one end of the top of the connecting rod is sleeved with a support block, the support block is in sliding contact with the inner wall of the sealing cover, and the support block is located at the bottom of the main spring; Through the coordinated action of the damping component and the main spring in the pressure mechanism, precise control and buffering of the valve cover movement are achieved, effectively slowing down the speed of the valve cover during opening and closing, avoiding vibration and impact caused by rapid movement, significantly improving the operating stability and service life of the safety valve, and enhancing its reliability and safety during pressure monitoring and regulation.

[0010] Preferably, the damping assembly includes a damping chamber, a damping piston is provided inside the damping chamber, a fine hole is opened inside the damping piston for the circulation of the medium inside the damping chamber, the damping piston is fixedly mounted on the outside of the connecting rod, the outer wall of the connecting rod is in sliding contact with the damping chamber, and the damping chamber is filled with a fluid medium; By optimizing the structure of the damping assembly and utilizing the interaction between the fluid medium in the damping chamber and the damping piston, precise damping control of the valve cover movement is achieved; the fine holes inside the damping piston cause the fluid medium to generate resistance when the piston moves, thereby effectively slowing down the opening and closing speed of the valve cover, avoiding vibration and impact caused by rapid movement, significantly improving the operating stability and service life of the safety valve, and at the same time enhancing its reliability and safety during pressure monitoring and regulation.

[0011] Preferably, a pressing plate is provided on the top of the main spring, the bottom of the pressing plate is rotatably connected to the valve stem, one end of the top of the valve stem is threadedly connected to the top of the sealing cover, the sealing cover is connected to the valve seat housing by bolts, and one end of the top of the valve stem is sleeved with an adjusting cap; Flexible adjustment of the opening pressure of the safety valve is achieved through the structural coordination of the pressure piece, valve stem and adjusting cap on the top of the main spring; the rotational connection between the pressure piece and the valve stem and the threaded connection between the valve stem and the sealing cover enable the compression degree of the main spring to be precisely adjusted by rotating the adjusting cap, thereby changing the opening pressure threshold of the safety valve; this adjustable design enables the safety valve to adapt to the pressure requirements under different working conditions, enhancing its adaptability and reliability in pressure monitoring and safety protection.

[0012] The positioning assembly includes a connecting cover, which is installed on the outside of the sealing cover by bolts. The sealing cover is threadedly connected to the outer wall of the adjusting bolt, and a compression spring is provided at one end of the adjusting bolt. Through the cooperation of the connecting cover, the adjusting bolt and the compression spring of the positioning assembly, stable positioning and pressure adjustment of the damping assembly are achieved, ensuring the stability and reliability of the safety valve during operation.

[0013] Preferably, the compression spring is located inside the sealing cover, and a positioning pin is provided at one end of the compression spring. The positioning pin engages with the compression spring and the outer wall of the damping chamber. One end of the positioning pin has a hemispherical surface, and the outer wall of the damping chamber is provided with a ring-shaped groove. Through the cooperation of the compression spring and the locating pin, the damping chamber is accurately positioned and firmly engaged. The compression spring is located inside the sealing cover, and one end of the compression spring is connected to the locating pin. The locating pin engages with the annular groove on the outer wall of the damping chamber to ensure that the damping chamber maintains a stable position during operation. At the same time, the hemispherical surface design of the locating pin helps to achieve flexible engagement and release when the pressure changes, further enhancing the stability and reliability of the safety valve during pressure monitoring and regulation.

[0014] Preferably, the pressure relief assembly includes a valve core, which is installed inside the valve seat housing, a wrench is installed on the top of the valve core, the interior of the valve core is a hollow structure, and a hole groove is provided on one side of the top and bottom of the valve core. The valve core is aligned with the first flow hole and the second flow hole through rotational cooperation, and the first flow hole and the second flow hole are respectively connected to the channels at both ends of the valve seat housing; The manual pressure relief function of the safety valve is achieved through the cooperation of the valve core and the wrench of the pressure relief assembly. The hollow structure and hole groove design inside the valve core enable it to be aligned with the flow hole in the valve seat housing. By turning the wrench to drive the valve core to rotate, the flow path of the medium is controlled to achieve manual pressure relief, providing the system with a means to quickly reduce pressure in an emergency or when human intervention is required, thereby enhancing the flexibility and reliability of the safety valve.

[0015] The present invention provides a safety valve for pressure monitoring, which has the following beneficial effects: In practical applications, this safety valve for pressure monitoring connects the valve seat housing to a pipeline, and an electronic pressure gauge on one side of the valve seat housing can effectively monitor and respond to pressure changes within the pipeline. When the pressure in the pipeline increases, the electronic pressure gauge promptly issues an alarm, and the medium pushes the valve cover upward. The valve cover drives the support block and the damping piston in the damping chamber upward through the connecting rod, and compresses the main spring. Under the engagement of the positioning pin, the damping chamber is fixed in position. During the upward movement, the damping piston squeezes the fluid medium in the damping chamber, causing it to flow through the fine pores inside the piston. Due to the resistance of the fluid medium, the movement speed of the damping piston is controlled to rise slowly, thereby ensuring a smooth opening process of the valve cover and avoiding internal vibration caused by rapid movement. When the pressure in the pipeline returns to normal, the main spring pushes the damping piston to return, the fluid medium flows back through the fine pores, and the damping piston slowly descends, driving the valve cover to smoothly return to its original position and close the channel. This process, through the precise control of the damping piston, ensures that the speed of the valve cover is uniform and slow throughout the entire upward and downward movement, effectively avoiding vibration of the valve cover and significantly improving the operational stability and service life of the safety valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the front view structure of the present invention; Figure 3 Schematic diagram of the internal structure of the present invention; Figure 4 For the present invention Figure 3 A in the middle is an enlarged structural diagram; Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle; Figure 6 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 7 This is a schematic diagram of the damping chamber structure of the present invention; Figure 8 Schematic diagram of the damping piston structure of the present invention; Figure 9 It is a schematic diagram of the internal structure of the damping chamber of the present invention.

[0017] In the figure, 1. valve seat assembly; 101. valve seat housing; 102. spring pin; 103. sealing ring; 104. limiting ring; 105. positioning spring; 106. connecting groove; valve cover; 3. pressure mechanism; 301. sealing cover; 302. main spring; 303. lifting piston; 304. connecting rod; 305. isolation pad; 306. return spring; 307. damping piston; 308. damping chamber; 309. pressing plate; 310. valve stem; 311. adjusting cap; 4. positioning assembly; 401. connecting cover; 402. adjusting bolt; 403. compression spring; 404. positioning pin; 5. pressure relief assembly; 501. valve core; 502. wrench; 503. first flow hole; 504. second flow hole. DETAILED DESCRIPTION

[0018] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figure 1-9 The embodiment of the present invention provides a technical solution: a safety valve for pressure monitoring, comprising: The valve seat assembly 1 has two ends connected to the external pipeline; The valve cover 2 is installed inside the valve seat assembly 1; The pressure mechanism 3 is connected to the valve cover 2 and is installed above the valve seat assembly 1 to cooperate with the valve cover 2 to control the opening and closing of the safety valve; A positioning component 4 is installed on one side of the pressure mechanism 3 to position the internal components of the pressure mechanism 3; The pressure relief assembly 5 is located inside the valve seat assembly 1 and is used to relieve pressure inside the safety valve; Through the damping effect of the pressure mechanism 3, the safety valve can effectively reduce the vibration of the valve cover 2 during the opening and closing process, significantly improving the stability and reliability of the system. The damping mechanism of the pressure mechanism 3 enables the valve cover 2 to move slowly and smoothly when the system pressure fluctuates, avoiding the impact and vibration caused by rapid movement. This design not only extends the service life of the safety valve, but also improves the sealing performance, ensuring that the safety valve can still maintain a good operating state when a high-flow medium passes through. At the same time, the damping effect provides a more stable environment for pressure monitoring, allowing the safety valve to more accurately monitor changes in the internal pressure of the system, respond and adjust the pressure relief speed in a timely manner, and further enhance the performance of the safety valve in pressure monitoring and safety protection. This design that combines pressure monitoring and damping functions provides more efficient and safer protection for industrial systems.

[0020] Example 2: Please refer to Figure 1-9 The embodiment of the present invention provides a technical solution: a safety valve for pressure monitoring, comprising: a valve seat assembly 1 including a valve seat housing 101, wherein the valve seat housing 101 is provided with a pipeline medium outlet and an inlet at both ends, and sealing rings 103 are embedded in the surfaces of both ends of the valve seat housing 101, and the sealing rings 103 are distributed on the edges of both sides of the communication groove 106. The surfaces of both ends of the valve seat housing 101 are provided with communication grooves 106, and the communication grooves 106 are annular in structure. The communication grooves 106 are annular in structure, and a spring pin 102 is inserted into the communication grooves 106; the spring pin 102 is in sliding contact with the inner wall of the valve seat housing 101, and a positioning spring 105 is sleeved on the outside of the spring pin 102. A limit ring 104 is provided at one end of the spring pin 102, and the limit ring 104 is welded to the valve seat housing 101; By providing connecting grooves 106 at the connection points between the two ends of the valve seat housing 101 and the external pipe flanges, when the sealing performance of the connection points between the valve seat housing 101 and the external flanges decreases and causes leakage, the medium will first enter the connecting groove 106 through the leaking gap, thereby increasing the pressure inside the connecting groove 106, thereby enabling the spring pin 102 inside the connecting groove 106 to be ejected. The operator can promptly detect the aging and leakage of the sealing ring 103 through the ejection of the spring pin 102, and thus promptly replace it. When the pressure inside the connecting groove 106 returns to normal, the spring pin 102 can be pushed back to its original position under the push of the positioning spring 105. In this way, leakage problems caused by aging of the sealing ring 103 can be discovered in time, and the ejection of the spring pin 102 can intuitively remind the operator to replace the sealing ring 103, thereby effectively avoiding safety hazards caused by sealing failure and ensuring the sealing performance and reliability of the safety valve. At the same time, the spring pin 102 can automatically reset when the pressure returns to normal, ensuring the long-term stable operation of the device and further enhancing the safety valve's functions in pressure monitoring and safety assurance.

[0021] Example 3: Please refer to Figure 1-9, the embodiment of the present invention provides a technical solution: a safety valve for pressure monitoring, comprising: a pressure mechanism 3 including a damping assembly sealing cover 301, an isolation gasket 305 is provided between the sealing cover 301 and the valve seat housing 101, the damping assembly is arranged inside the sealing cover 301, a main spring 302 is provided above the damping assembly, the main spring 302 is located above the damping assembly, a connecting rod 304 runs through the damping assembly, one end of the bottom of the connecting rod 304 is connected to the valve cover 2, and a support block 306 is provided on the top end of the connecting rod 304, the support block 306 is in sliding contact with the inner wall of the sealing cover 301, and the support block 306 is located at the bottom of the main spring 302; the damping assembly includes a damping chamber 308, a damping piston 307 is provided inside the damping chamber 308, a fine hole is opened inside the damping piston 307 for the circulation of the medium inside the damping chamber 308, the damping piston 307 is fixedly installed on the outside of the connecting rod 304, the connecting rod 304 The outer wall is in sliding contact with the damping chamber 308, and the damping chamber 308 is filled with fluid medium; a pressing piece 309 is provided on the top of the main spring 302, and the bottom of the pressing piece 309 is rotatably connected to the valve stem 310, and one end of the top of the valve stem 310 is threadedly connected to the top of the sealing cover 301, and the sealing cover 301 is connected to the valve seat housing 101 by bolts, and an adjusting cap 303 is sleeved on the top end of the valve stem 310; the positioning assembly 4 includes a connecting cover 401, which is installed on the outside of the sealing cover 301 by bolts, and the sealing cover 301 is threadedly connected to the outer wall of the adjusting bolt 402, and a compression spring 403 is provided at one end of the adjusting bolt 402; the compression spring 403 is located inside the sealing cover 301, and a positioning pin 404 is provided at one end of the compression spring 403. The positioning pin 404 is engaged with the outer wall of the damping chamber 308 through the compression spring 403, and one end of the positioning pin 404 has a hemispherical surface, and the outer wall of the damping chamber 308 is provided with a ring-shaped groove; When the device is in use, one end of the valve seat housing 101 is connected to the pipeline. When the pressure inside the pipeline increases, the medium will push the valve cover 2 upward, and then the valve cover 2 can drive the support block 306 and the damping piston 307 inside the damping chamber 308 to move upward through the connecting rod 304, and compress the main spring 302. Under the engagement of the positioning pin 404, the position of the damping chamber 308 can be fixed, and then the damping piston 307 will squeeze the fluid medium inside the damping chamber 308 while moving upward, so that the fluid medium can be squeezed through the pores inside the damping piston 307. Due to the resistance of the fluid medium, the damping piston 307 is controlled to move slowly upward, and then the end The cover is restricted by the damping piston 307 and will slowly rise when it is opened. When the pressure inside the pipeline returns to normal, the main spring 302 pushes the damping piston 307 to reset. During the resetting process, the damping piston 307 will force the fluid medium below the damping piston 307 to flow back to the top of the damping piston 307 through the internal pores, so that the damping piston 307 can slowly reset downward, and then the damping piston 307 can drive the valve cover 2 to slowly reset through the connecting rod 304 to close the channel. The restriction of the damping piston 307 inside the damping chamber 308 slows down the movement speed of the valve cover 2 during the up and down movement, thereby preventing the valve cover 2 from vibrating internally. When the pressure inside the pipeline increases sharply, the valve cover 2 is affected by the resistance of the damping piston 307 and cannot quickly release the pressure, which will cause the thrust on the valve cover 2 to increase, and then the thrust will overcome the clamping force between the positioning pin 404 and the outer wall of the damping chamber 308, so that the compression spring 403 at one end of the positioning pin 404 can be compressed, and then the positioning pin 404 will be disengaged from the clamping of the outer wall of the damping chamber 308, thereby allowing the damping assembly to move upward, so that the damping effect of the connecting rod 304 disappears, so that the valve cover 2 can directly drive the damping assembly and the support block 306 to move upward through the connecting rod 304, thereby compressing the main spring 302 so that the valve cover 2 can quickly open and release the pressure, thereby greatly improving the safety of the safety valve when in use; In addition, when the internal pressure of the pipeline increases sharply and the pressure is released, the main spring 302 pushes the connecting rod 304 and the valve cover 2 to reset. During the resetting process, the bottom of the damping piston 307 can push the damping chamber 308 downward, so that the damping chamber 308 can be reset, and the damping chamber 308 can be re-engaged with the positioning pin 404, and then by rotating the adjusting bolt 402, the position of the adjusting bolt 402 can be adjusted, so that one end of the adjusting bolt 402 can compress the compression spring 403, and the pressure applied by the compression spring 403 to the positioning pin 404 can be adjusted, so that the clamping force between the damping chamber 308 and the positioning pin 404 can be adjusted, and the pressure value that triggers the damping chamber 308 to disengage from the positioning pin 404 when the internal pressure of the pipeline increases sharply can be adjusted; Thus, through the damping design of the pressure mechanism 3, the stability and safety of the safety valve during pressure monitoring and regulation are significantly improved. The cooperation between the damping piston 307 and the damping chamber 308 can effectively slow down the movement speed of the valve cover 2, avoiding the vibration of the valve cover 2 caused by rapid opening and closing, thereby extending the service life of the safety valve and improving its sealing performance. At the same time, when the internal pressure of the pipeline increases sharply, the safety valve can respond quickly and release the pressure to ensure the safety of the system. In addition, through the design of the adjusting bolt 402 and the compression spring 403, the clamping force between the damping chamber 308 and the positioning pin 404 can be flexibly adjusted, thereby achieving precise adjustment of the trigger pressure value, further enhancing the adaptability and reliability of the safety valve under different working conditions. This design not only optimizes the performance of the safety valve, but also improves its functions in pressure monitoring and safety protection.

[0022] Example 4: Please refer to Figure 1-9 The embodiment of the present invention provides a technical solution: a safety valve for pressure monitoring, comprising: a pressure relief assembly 5 including a valve core 501, the valve core 501 being installed inside a valve seat housing 101, a wrench 502 being installed on the top of the valve core 501, the interior of the valve core 501 being a hollow structure, a hole groove being provided on one side of the top and bottom of the valve core 501, the valve core 501 being aligned with a first flow hole 503 and a second flow hole 504 by rotational engagement, the first flow hole 503 and the second flow hole 504 being respectively connected to channels at both ends of the valve seat housing 101; By rotating the wrench 502, the valve core 501 inside the valve seat housing 101 can be rotated, so that the channel inside the valve core 501 can be aligned with the first flow hole 503 and the second flow hole 504, and the medium inside the pipeline can flow through the valve core 501, so that the pressure inside the pipeline can be manually relieved; By turning wrench 502, the internal passage of valve core 501 is aligned with the flow hole, allowing the medium in the pipeline to flow through valve core 501, achieving manual pressure relief. This design provides operators with a means to quickly reduce system pressure in an emergency or when human intervention is required, enhancing the flexibility and reliability of the safety valve and further improving the system's performance in pressure monitoring and safety protection.

[0023] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0024] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A safety valve for pressure monitoring, characterized in that: include: A valve seat assembly (1), wherein both ends of the valve seat assembly (1) are connected to external pipelines; A valve cover (2) is mounted inside the valve seat assembly (1); A pressure mechanism (3) is connected to the valve cover (2), and the pressure mechanism (3) is installed above the valve seat assembly (1) and is used to cooperate with the valve cover (2) to control the opening and closing of the safety valve; A positioning component (4) is installed on one side of the pressure mechanism (3) to position the internal components of the pressure mechanism (3); The pressure relief assembly (5) is located inside the valve seat assembly (1) and is used to relieve pressure inside the safety valve.

2. A safety valve for pressure monitoring according to claim 1, characterized in that: The valve seat assembly (1) includes a valve seat housing (101), and the two ends of the valve seat housing (101) are respectively provided with a pipeline flow medium outlet and an inlet, and the surfaces of the two ends of the valve seat housing (101) are embedded with sealing rings (103), and the sealing rings (103) are distributed on the edges of both sides of the connecting groove (106). The surfaces of the two ends of the valve seat housing (101) are provided with connecting grooves (106), and the connecting groove (106) is an annular structure. The connecting groove (106) is an annular structure, and a spring pin (102) is inserted into the inside of the connecting groove (106); The elastic pin (102) is in sliding contact with the inner wall of the valve seat housing (101), a positioning spring (105) is sleeved on the outside of the elastic pin (102), a limiting ring (104) is provided at one end of the elastic pin (102), and the limiting ring (104) is welded to the valve seat housing (101).

3. A safety valve for pressure monitoring according to claim 2, characterized in that: The pressure mechanism (3) includes a damping assembly sealing cover (301), an isolation pad (305) is provided between the sealing cover (301) and the valve seat housing (101), the damping assembly is provided inside the sealing cover (301), a main spring (302) is provided above the damping assembly, a connecting rod (304) passes through the damping assembly, one end of the bottom of the connecting rod (304) is connected to the valve cover (2), and one end of the top of the connecting rod (304) is provided with a support block (306), the support block (306) is in sliding contact with the inner wall of the sealing cover (301), and the support block (306) is located at the bottom of the main spring (302).

4. A safety valve for pressure monitoring according to claim 3, characterized in that: The damping assembly includes a damping chamber (308), a damping piston (307) is provided inside the damping chamber (308), a fine hole is opened inside the damping piston (307) for the circulation of the medium inside the damping chamber (308), the damping piston (307) is fixedly installed on the outside of the connecting rod (304), the outer wall of the connecting rod (304) is in sliding contact with the damping chamber (308), and the damping chamber (308) is filled with a fluid medium.

5. A safety valve for pressure monitoring according to claim 4, characterized in that: A pressing plate (309) is provided on the top of the main spring (302), and the bottom of the pressing plate (309) is rotatably connected to the valve stem (310). One end of the top of the valve stem (310) is threadedly connected to the top of the sealing cover (301), and the sealing cover (301) is connected to the valve seat housing (101) through bolts. An adjusting cap (303) is mounted on one end of the top of the valve stem (310).

6. A safety valve for pressure monitoring according to claim 5, characterized in that: The positioning assembly (4) includes a connecting cover (401), the connecting cover (401) is mounted on the outside of the sealing cover (301) by means of bolts, the sealing cover (301) is threadedly connected to the outer wall of the adjusting bolt (402), and a compression spring (403) is provided at one end of the adjusting bolt (402).

7. A safety valve for pressure monitoring according to claim 6, characterized in that: The compression spring (403) is located inside the sealing cover (301), and a positioning pin (404) is provided at one end of the compression spring (403). The positioning pin (404) engages with the outer wall of the damping chamber (308) through the compression spring (403). One end of the positioning pin (404) has a hemispherical surface, and the outer wall of the damping chamber (308) is provided with an annular groove.

8. A safety valve for pressure monitoring according to claim 7, characterized in that: The pressure relief assembly (5) includes a valve core (501), the valve core (501) is installed inside the valve seat housing (101), a wrench (502) is installed on the top of the valve core (501), the interior of the valve core (501) is a hollow structure, and a hole groove is provided on one side of the top and bottom of the valve core (501), and the valve core (501) is aligned with the first flow hole (503) and the second flow hole (504) by rotational cooperation, and the first flow hole (503) and the second flow hole (504) are respectively connected to the channels at both ends of the valve seat housing (101).

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