Safety pressure control valve

Abstract

The utility model relates to safe pressure control valve technical field discloses a safe pressure control valve, including valve body, the valve body outer wall fixedly connected with the air outlet pipe, the air outlet pipe outer wall is provided with dustproof subassembly, the valve body bottom fixedly connected with the air inlet pipe, the air inlet pipe outer wall is provided with quick release subassembly, quick release subassembly includes the ball, the ball outer wall sets up in the air inlet pipe outer wall, the fixed hole is seted up in the air inlet pipe inside, the ball outer wall sliding connection is in the fixed hole inner wall, the air inlet pipe outer wall sliding connection has the connecting pipe, the ball outer wall sliding connection is in the connecting pipe inner wall, in the utility model, through the downward movement slider to remove the location of ball, subsequently through the ball moves out the fixed hole inside and removes the fixing of air inlet pipe, avoid safety valve and pipeline usually adopt flange bolt connection, welding or thread connection, when disassembling need to loosen bolt, clean sealing surface or cutting pipeline gradually.

Description

Technical Field

[0001] This utility model relates to the field of safety pressure control valve technology, and in particular to a safety pressure control valve. Background Technology

[0002] Safety pressure control valves, as core components ensuring the safe operation of equipment in industrial systems, are widely used in petrochemical, power energy, aerospace, and other fields. Their main function is to automatically open when the system pressure exceeds a preset safety value, releasing excess media and preventing dangerous situations such as equipment damage, leakage, or even explosion due to excessive pressure. With the continuous improvement of industrial automation and intelligence, higher requirements are placed on the reliability, response speed, and ease of maintenance of safety pressure control valves.

[0003] The existing connection methods between safety pressure control valves and pipelines are mainly flange bolt connections, welding, and threaded connections. Flange bolt connections use multiple bolts to fasten the valve to the pipeline flange, using gaskets for sealing. This method offers high connection strength, but disassembly requires loosening each bolt individually with a wrench or similar tool, making the process cumbersome. Welded connections directly weld the valve to the pipeline as a single unit, providing excellent sealing. However, if valve replacement is needed later, it can only be done by cutting, which is time-consuming and can damage the pipeline structure. Threaded connections rely on thread engagement for fixation, making installation relatively simple. However, under long-term vibration or high-pressure environments, the threads are prone to loosening, and disassembly can be difficult due to corrosion.

[0004] However, these traditional connection methods have significant drawbacks. In practical applications, flange bolt connections, welding, and threaded connections all inevitably involve excessively long disassembly times. When the safety pressure control valve needs maintenance or replacement, the disassembly process requires loosening each bolt individually, cleaning the sealing surface, or cutting the pipeline, which can take several hours or even longer. Prolonged disassembly not only leads to system downtime, causing production interruptions, energy waste, and fluctuations in process parameters, but also causes flange deformation and scratches on the sealing surface due to uneven torque during disassembly, or bolts becoming stuck due to corrosion, making disassembly difficult and necessitating the use of forceful tools, further damaging the equipment. Frequent disassembly damage shortens the service life of safety valves and pipelines, increasing equipment maintenance costs and production risks for enterprises. Therefore, a new safety pressure control valve is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a safety pressure control valve, which aims to improve the problem of the inability to quickly disassemble the safety pressure control valve in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A safety pressure control valve includes a valve body, an air outlet pipe fixedly connected to the outer wall of the valve body, a dustproof component provided on the outer wall of the air outlet pipe, an air inlet pipe fixedly connected to the bottom of the valve body, and a quick-release component provided on the outer wall of the air inlet pipe.

[0008] The quick-release assembly includes a retaining ball, the outer wall of which is disposed on the outer wall of the air intake pipe. A fixing hole is provided inside the air intake pipe. The outer wall of the retaining ball is slidably connected to the inner wall of the fixing hole. A connecting pipe is slidably connected to the outer wall of the air intake pipe. The outer wall of the retaining ball is slidably connected to the inner wall of the connecting pipe. A limit ring is fixedly connected to the outer wall of the connecting pipe. A retaining ring is fixedly connected to the outer wall of the connecting pipe. A slider is slidably connected to the outer wall of the connecting pipe. A spring is sleeved on the outer wall of the connecting pipe. One end of the spring is fixedly connected to the outer wall of the slider, and the other end of the spring is fixedly connected to the outer wall of the retaining ring.

[0009] As a further description of the above technical solution:

[0010] The dustproof component includes a dustproof net, the outer wall of which is disposed on the inner wall of the air outlet pipe, and a guide post is fixedly connected to the outer wall of the dustproof net;

[0011] As a further description of the above technical solution:

[0012] The outer wall of the guide column is slidably connected to the inner wall of the air outlet pipe, and the outer wall of the dustproof net is fixedly connected to a connecting rod.

[0013] As a further description of the above technical solution:

[0014] The connecting rod has a slot inside, and the connecting rod is slidably connected to the inner wall of the air outlet pipe. A limit block is slidably connected to the inner wall of the air outlet pipe.

[0015] As a further description of the above technical solution:

[0016] A second spring is installed inside the air outlet pipe. One end of the second spring is fixedly connected to the inner wall of the air outlet pipe, and the other end of the second spring is fixedly connected to the outer wall of the limiting block.

[0017] As a further description of the above technical solution:

[0018] A rotating column is fixedly connected to the inner wall of the air outlet pipe, and a locking block is rotatably connected to the outer wall of the rotating column. The outer wall of the locking block and the inner wall of the locking groove are engaged.

[0019] As a further description of the above technical solution:

[0020] A spring is provided on the outer wall of the card block. One end of the spring is fixedly connected to the outer wall of the card block, and the other end of the spring is fixedly connected to the inner wall of the air outlet pipe.

[0021] As a further description of the above technical solution:

[0022] A pressing rod is slidably connected to the inner wall of the air outlet pipe, and the outer wall of the pressing rod is in contact with the outer wall of the locking block.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the limiting of the ball is released by moving the slider downward, and then the ball moves out of the fixing hole to release the fixing of the air inlet pipe. This achieves the effect of quick disassembly of the safety pressure control valve, avoiding the need to loosen the bolts one by one, clean the sealing surface or cut the pipe when the safety valve and the pipeline are usually connected by flange bolts, welding or threaded connection. This significantly shortens the system downtime. When the bolts are removed, uneven torque may cause flange deformation, scratches on the sealing surface, or jamming due to rust, which is difficult to disassemble and requires the use of violent tools, further damaging the equipment. This reduces production interruption, energy waste or process parameter fluctuations caused by downtime. The disassembly process is without hard impact, avoiding wear on precision parts such as sealing surface and threads, and extending the service life of the safety valve and pipeline.

[0025] 2. In this utility model, pressing the pressing rod drives the locking block to rotate, and then the locking block moves out of the inner wall of the locking groove to release the limit on the connecting rod. This achieves the effect of preventing dust from entering the interior of the safety pressure control valve, and at the same time, it allows for quick disassembly of the dustproof screen. This prevents dust, particulate matter, etc., from entering the safety valve and accumulating around the exhaust port or valve core, which would prevent the valve from opening or closing normally, affecting the reliability of the pressure relief function. Impurities and particles impact the valve core sealing surface at high speed with the airflow, causing scratches or wear, leading to valve leakage and reducing sealing performance. This ensures that the exhaust channel is unobstructed, allowing the valve to open and relieve pressure in time when overpressure occurs, ensuring the stability of the system pressure control, preventing impurities from contacting the sealing surface, reducing wear and contamination, and maintaining the sealing accuracy of the valve. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a safety pressure control valve proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the air inlet pipe of a safety pressure control valve proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the dustproof mesh structure of a safety pressure control valve proposed in this utility model;

[0030] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0031] Legend:

[0032] 1. Valve body; 2. Air outlet pipe; 3. Air inlet pipe; 4. Fixing hole; 5. Connecting pipe; 6. Ball retainer; 7. Limiting ring; 8. Retaining ring; 9. Slider; 10. Spring 1; 11. Connecting rod; 12. Retaining groove; 13. Limiting block; 14. Spring 2; 15. Rotating column; 16. Retaining block; 17. Spring 3; 18. Pressing rod; 19. Dustproof net; 20. Guide column. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-3This utility model provides an embodiment of a safety pressure control valve, including a valve body 1. The valve body 1 serves as the core load-bearing structure of the entire safety pressure control valve, housing key components such as the internal valve core and spring, and connecting an inlet pipe 3 and an outlet pipe 2 to achieve medium flow and pressure control, thereby ensuring the safe operation of the system. An outlet pipe 2 is fixedly connected to the outer wall of the valve body 1. The outlet pipe 2 guides the medium released after the safety valve is opened to a safe area. A dustproof component is provided on the outer wall of the outlet pipe 2. An inlet pipe 3 is fixedly connected to the bottom of the valve body 1. A quick-release component is provided on the outer wall of the inlet pipe 3, including a retaining ball 6. The retaining ball 6 is used to quickly lock and unlock the connecting pipe 5, achieving rapid disassembly. The outer wall of the retaining ball 6 is located on the outer wall of the inlet pipe 3. A fixing hole 4 is provided inside the inlet pipe 3. The outer wall of the retaining ball 6 is slidably connected to the inner wall of the fixing hole 4, allowing it to slide within the fixing hole 4 on the inner wall of the connecting pipe 5. When the retaining ball 6 pops out, it can tightly engage with the fixing hole 4 on the inner wall of the connecting pipe 5, thus ensuring safe operation. The two are now fixedly connected. The outer wall of the intake pipe 3 is slidably connected to the connecting pipe 5. The connecting pipe 5 serves as an external pipe for connecting the safety pressure control valve. The outer wall of the ball valve 6 is slidably connected to the inner wall of the connecting pipe 5. The outer wall of the connecting pipe 5 is fixedly connected to the limit ring 7, which limits the sliding range of the slider 9 and prevents the slider 9 from sliding excessively and detaching from the connecting pipe 5, thus achieving a stable structure. The outer wall of the connecting pipe 5 is fixedly connected to the retaining ring 8, which is used to fix one end of the spring 10 and drive the slider 9 to reset. The outer wall of the connecting pipe 5 is slidably connected to the slider 9, and the outer wall of the connecting pipe 5 is fitted with the spring 10. One end of the spring 10 is fixedly connected to the outer wall of the slider 9, and the other end of the spring 10 is fixedly connected to the outer wall of the retaining ring 8. When the slider 9 moves downward, the spring 10 is compressed, accumulating elastic potential energy. When the slider 9 is released, the spring 10 returns to its original shape, pushing the slider 9 to reset. This, in conjunction with the slider 9, limits or releases the ball valve 6, achieving the effect of quickly disassembling and installing the intake pipe 3 and the connecting pipe 5.

[0035] Reference Figure 1 , Figure 4 and Figure 5The dustproof component includes a dustproof net 19, which is used to intercept dust, particulate matter, etc., to prevent them from entering the safety valve and thus protect the internal structure of the valve. The outer wall of the dustproof net 19 is set on the inner wall of the air outlet pipe 2. A guide post 20 is fixedly connected to the outer wall of the dustproof net 19. The outer wall of the guide post 20 is slidably connected to the inner wall of the air outlet pipe 2. The guide post 20 is cylindrical and its outer wall can slide on the inner wall of the air outlet pipe 2 to guide the installation and removal of the dustproof net 19, so that the dustproof net 19 can be accurately installed in place and avoid misalignment. A connecting rod 11 is fixedly connected to the outer wall of the dustproof net 19 for connecting the dustproof net 19 and... The locking block 16 enables the fixing and disassembly of the dustproof net 19. A slot 12 is provided inside the connecting rod 11. The slot 12 cooperates with the locking block 16 to limit the movement of the connecting rod 11, achieving quick disassembly. The connecting rod 11 is slidably connected to the inner wall of the air outlet pipe 2. A limiting block 13 is slidably connected to the inner wall of the air outlet pipe 2. The limiting block 13 restricts the movement distance of the connecting rod 11, preventing excessive movement of the connecting rod 11 and causing the locking block 16 to move out of the slot 12. A second spring 14 is installed inside the air outlet pipe 2. One end of the second spring 14 is fixedly connected to the inner wall of the air outlet pipe 2, and the other end is fixedly connected to the limiting block 16. 3. On the outer wall, when the dustproof net 19 is installed, the spring 14 is compressed, providing a reverse elastic force, so that the limiting block 13 tightly abuts against the dustproof net 19, ensuring that the dustproof net 19 is installed securely. The inner wall of the air outlet pipe 2 is fixedly connected to a rotating column 15, and the outer wall of the rotating column 15 is rotatably connected to a locking block 16. The outer wall of the locking block 16 and the inner wall of the locking groove 12 engage. When the locking block 16 is engaged in the locking groove 12, the connecting rod 11 can be fixed, thereby fixing the dustproof net 19. When it is necessary to remove the dustproof net 19, the locking block 16 is rotated by pressing the pressing rod 18, moving out of the locking groove 12, thereby releasing the limitation on the connecting rod 11. A spring 17 is provided, with one end of the spring 17 fixedly connected to the outer wall of the locking block 16 and the other end fixedly connected to the inner wall of the air outlet pipe 2. The spring 17 is used to keep the locking block 16 engaged with the slot 12 when no external force is applied, ensuring that the dustproof net 19 is firmly fixed. A pressing rod 18 is slidably connected to the inner wall of the air outlet pipe 2. The outer wall of the pressing rod 18 is in contact with the outer wall of the locking block 16. When the pressing rod 18 is pressed, the pressing rod 18 pushes the locking block 16 to rotate around the rotating column 15 and move out of the slot 12, thereby releasing the limit on the connecting rod 11 and achieving the effect of quick disassembly and installation of the dustproof net 19.

[0036] Working principle: When disassembling the safety pressure control valve, first slide the slider 9 downwards. The sliding of the slider 9 compresses the spring 10. Then, the sliding of the slider 9 releases the limit on the retaining ball 6. Next, the retaining ball 6 slides out of the fixing hole 4, completing the disassembly of the safety pressure control valve. When installing the safety pressure control valve, simply slide the inner wall of the connecting pipe 5 against the outer wall of the air inlet pipe 3, then press the safety pressure control valve downwards, and then release the slider 9. The rebound of the spring 10 drives the slider 9 to reset. Then, the limit ring 7 resets the slider 9, and the slider 9 squeezes the limit ring 7. The limit ring 7 then moves into the fixing hole 4 through the squeezing of the slider 9, completing the installation of the safety pressure control valve. This avoids the common practice of connecting safety valves and pipelines with flange bolts, welding, or threaded connections. During disassembly, it is necessary to loosen each bolt, clean the sealing surface, or cut the pipeline, which would significantly shorten the system downtime. When removing bolts, uneven torque may cause flange deformation, scratches on the sealing surface, or jamming due to rust, making disassembly difficult and requiring the use of forceful tools, which may further damage the equipment.

[0037] When the safety pressure control valve is closed, the dustproof net 19 prevents dust from entering the valve. To disassemble and clean the dustproof net 19, first press the pressing rod 18. This causes the locking block 16 to rotate on the outer wall of the rotating column 15. The rotation of the locking block 16 then compresses the spring 17, causing it to move out of the slot 12. Next, pull the dustproof net 19 outwards to remove it. To install the dustproof net 19, simply slide the connecting rod 11 against the inner wall of the air outlet pipe 2, then press the dustproof net 19 inwards. This press causes the limiting block 13 to move, and then... The movement of the position block 13 compresses the second spring 14, then releases the pressing rod 18. The rebound of the third spring 17 causes the locking block 16 to rotate on the outer wall of the rotating column 15. Then, the rotation of the locking block 16 moves into the slot 12. Subsequently, the rebound of the second spring 14 causes the limiting block 13 to limit the connecting rod 11, thereby completing the installation of the dustproof net 19. This prevents dust, particulate matter, etc. from entering the safety valve and accumulating around the exhaust port or valve core, causing the valve to fail to open or close normally, affecting the reliability of the pressure relief function. Impurities and particles impact the valve core sealing surface at high speed with the airflow, causing scratches or wear, leading to valve leakage and reducing sealing performance.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safety pressure control valve, comprising a valve body (1), characterized in that: The valve body (1) is fixedly connected to the outer wall of the air outlet pipe (2), and the outer wall of the air outlet pipe (2) is provided with a dustproof component. The bottom of the valve body (1) is fixedly connected to the air inlet pipe (3), and the outer wall of the air inlet pipe (3) is provided with a quick-release component. The quick-release assembly includes a retaining ball (6), the outer wall of which is disposed on the outer wall of the air intake pipe (3). A fixing hole (4) is provided inside the air intake pipe (3). The outer wall of the retaining ball (6) is slidably connected to the inner wall of the fixing hole (4). A connecting pipe (5) is slidably connected to the outer wall of the air intake pipe (3). The outer wall of the retaining ball (6) is slidably connected to the inner wall of the connecting pipe (5). A limit ring (7) is fixedly connected to the outer wall of the connecting pipe (5). A retaining ring (8) is fixedly connected to the outer wall of the connecting pipe (5). A slider (9) is slidably connected to the outer wall of the connecting pipe (5). A spring (10) is sleeved on the outer wall of the connecting pipe (5). One end of the spring (10) is fixedly connected to the outer wall of the slider (9), and the other end of the spring (10) is fixedly connected to the outer wall of the retaining ring (8).

2. The safety pressure control valve according to claim 1, characterized in that: The dustproof component includes a dustproof net (19), the outer wall of which is disposed on the inner wall of the air outlet pipe (2), and a guide post (20) is fixedly connected to the outer wall of the dustproof net (19).

3. A safety pressure control valve according to claim 2, characterized in that: The outer wall of the guide post (20) is slidably connected to the inner wall of the air outlet pipe (2), and the outer wall of the dustproof net (19) is fixedly connected to the connecting rod (11).

4. A safety pressure control valve according to claim 3, characterized in that: The connecting rod (11) has a slot (12) inside, and the connecting rod (11) is slidably connected to the inner wall of the air outlet pipe (2). The inner wall of the air outlet pipe (2) is slidably connected to a limit block (13).

5. A safety pressure control valve according to claim 4, characterized in that: The air outlet pipe (2) is equipped with a second spring (14). One end of the second spring (14) is fixedly connected to the inner wall of the air outlet pipe (2), and the other end of the second spring (14) is fixedly connected to the outer wall of the limiting block (13).

6. A safety pressure control valve according to claim 5, characterized in that: The inner wall of the air outlet pipe (2) is fixedly connected to a rotating column (15), and the outer wall of the rotating column (15) is rotatably connected to a locking block (16), and the outer wall of the locking block (16) and the inner wall of the locking groove (12) are engaged.

7. A safety pressure control valve according to claim 6, characterized in that: The outer wall of the card block (16) is provided with a spring three (17), one end of the spring three (17) is fixedly connected to the outer wall of the card block (16), and the other end of the spring three (17) is fixedly connected to the inner wall of the air outlet pipe (2).

8. A safety pressure control valve according to claim 7, characterized in that: The inner wall of the air outlet pipe (2) is slidably connected to a pressing rod (18), and the outer wall of the pressing rod (18) is in contact with the outer wall of the locking block (16).

Images