Anti-disassembly structure of pressure release valve

Abstract

The utility model provides a pressure release valve anti-dismantle structure, relates to pressure release valve anti-dismantle technical field, the pressure release valve anti-dismantle structure includes joint pipe fitting and pressure release valve, joint pipe fitting and pressure release valve threaded connection, the joint pipe fitting is provided with anti-dismantle portion, the pressure release valve is located in anti-dismantle portion, the anti-dismantle structure is provided with the anti-dismantle portion, the pressure release valve is located in the anti-dismantle portion. The pressure release valve can be enclosed through the anti-disassembly part, so that the anti-disassembly part and the pressure release valve are difficult to quickly disassemble through a common wrench, the anti-disassembly and anti-theft capabilities of the pressure release valve can be improved, the economic loss and the potential safety hazard are reduced, and the use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of anti-disassembly technology for pressure relief valves, specifically an anti-disassembly structure for a pressure relief valve. Background Technology

[0002] The pressure relief valve is connected to the tank body via a connector fitting. It reduces the pressure inside the tank. The valve can be used for active pressure relief (manually controlled) or passive pressure relief (when the tank pressure reaches a critical value). Therefore, for ease of use, the pressure relief valve needs to be located outside the connector fitting. Due to its crucial role and the high precision required for valves in critical locations, its price is relatively high. Existing pressure relief valves are directly installed onto the connector fitting via a threaded connection, allowing for quick assembly and disassembly with a wrench. This makes them vulnerable to theft by criminals using simple wrenches during transportation, storage, and even use, resulting in significant economic losses and safety hazards. Utility Model Content

[0003] The purpose of this utility model is to provide a tamper-proof structure for a pressure relief valve, which aims to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: the pressure relief valve anti-disassembly structure includes a connector pipe and a pressure relief valve, the connector pipe is threadedly connected to the pressure relief valve, the connector pipe is provided with an anti-disassembly part, and the pressure relief valve is located inside the anti-disassembly part.

[0005] The beneficial effects of this utility model are:

[0006] This anti-tamper structure can enclose the pressure relief valve with the anti-tamper part, making it difficult to quickly disassemble the anti-tamper part and the pressure relief valve with ordinary wrenches. This can improve the anti-tamper and anti-theft capabilities of the pressure relief valve, reduce economic losses and safety hazards, and has a good effect. Attached Figure Description

[0007] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0008] Figure 2 This is a schematic diagram of the outer tube.

[0009] Figure 3 This is a schematic diagram of the internal structure of the outer tube.

[0010] Figure 4 This is a schematic diagram of the inner tube.

[0011] Figure 5 This is a schematic diagram of the settling tank.

[0012] Figure 6 This is a schematic diagram of the ring plate structure.

[0013] In the diagram: 1. Connector fitting; 2. Pressure relief valve; 3. Metal pipe; 4. Inner pipe; 5. Outer pipe; 6. Ring plate; 7. Hexagonal part; 8. Slot; 9. Clamp; 10. Through hole. Detailed Implementation

[0014] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0015] like Figure 1-6 As shown, a pressure relief valve anti-disassembly structure includes a connector pipe 1 and a pressure relief valve 2. The connector pipe 1 is threadedly connected to the pressure relief valve 2. The connector pipe 1 is provided with an anti-disassembly part, and the pressure relief valve 2 is located inside the anti-disassembly part.

[0016] Example 1, refer to Figure 1 As shown, the anti-tampering part is a ring-shaped metal tube 3. The metal tube 3 is fixed to the connector fitting 1 by welding. First, the pressure relief valve 2 is installed on the connector fitting 1. Then, one end of the metal tube 3 is aligned with one end of the connector fitting 1, or one end of the metal tube 3 is sleeved on the outer surface of the connector fitting 1. Then, the metal tube 3 is fixed to the connector fitting 1 by welding, so that the pressure relief valve 2 is housed in the metal tube 3. The pressure relief valve 2 cannot be directly disassembled with a wrench. Therefore, the anti-tampering capability of the pressure relief valve 2 can be enhanced, reducing property damage. At the same time, during use, the metal tube 3 can also protect the pressure relief valve 2 to reduce the damage caused by external impacts to the pressure relief valve 2.

[0017] Example 2, refer to Figure 2-5As shown, the anti-tampering part includes an inner tube 4 and an outer tube 5. The inner tube 4 is located inside the outer tube 5 and can slide along the inner wall of the outer tube 5. The inner surface of the inner tube 4 and the outer surface of the connector fitting 1 are both threaded, meaning the inner tube 4 can be threadedly connected to the connector fitting 1. One end of the outer tube 5 is provided with a ring plate 6, allowing the inner tube 4 to be moved only from the end of the outer tube 5 without the ring plate 6. The outer surface of the outer tube 5 is provided with an external hexagonal portion 7 to facilitate rotation control of the outer tube 5 using a wrench. Both the inner tube 4 and the ring plate 6 have countersunk grooves 8, and a locking block 9 is also included. The locking block 9 can be placed into the countersunk grooves 8 on the inner tube 4 and the ring plate 6. When the outer tube 5 rotates, the locking block 9 can drive the inner tube 4 to rotate, thereby preventing tampering. The inner tube 4 is threaded onto the connector fitting 1. After the installation of the inner tube 4 is completed, the locking block 9 is removed from the inner tube 4 and the groove 8 on the ring plate 6. At this time, the rotation of the outer tube 5 and the inner tube 4 are independent of each other, that is, the inner tube 4 cannot be disassembled by rotating the outer tube 5. Moreover, the outer tube 5 is also restricted to the connector fitting 1 by the ring plate 6. The pressure relief valve 2 is located inside the outer tube 5. The pressure relief valve 2 can be disassembled directly by wrench through the outer tube 5, which enhances the anti-disassembly capability of the pressure relief valve 2. The locking block 9 can be an ordinary metal block or a magnet. After the locking block 9 connects the inner tube 4 and the ring plate 6 in the groove 8, one end of the locking block 9 is located outside the ring plate 6, which makes it easy to remove the locking block 9 from the groove 8.

[0018] Example 3, refer to Figure 2-6 As shown, the anti-tampering part includes an inner tube 4 and an outer tube 5. The inner tube 4 is located inside the outer tube 5 and can slide along the inner wall of the outer tube 5. The inner surface of the inner tube 4 and the outer surface of the connector fitting 1 are both threaded, meaning the inner tube 4 can be threadedly connected to the connector fitting 1. One end of the outer tube 5 is provided with a ring plate 6, allowing the inner tube 4 to be moved only from the end of the outer tube 5 without the ring plate 6. The outer surface of the outer tube 5 is provided with an external hexagonal portion 7 to facilitate rotation control of the outer tube 5 using a wrench. A through hole 10 is provided on the side of the ring plate 6. At the through hole 10, the ring plate 6 is spot-welded to the side wall of the inner tube 4. The inner tube 4 can be tampered with using a wrench and... When the outer hexagonal part 7 of the outer tube 5 controls the rotation of the outer tube 5, it drives the inner tube 4 inside to be threaded onto the connector fitting 1. After the inner tube 4 and the connector fitting 1 are threaded together, the inner tube 4 and the connector fitting 1 come into contact, meaning that the inner tube 4 cannot be rotated any further. At this time, a large torque is applied to the hexagonal part 7 on the outer tube 5 by using a wrench, causing the weld between the ring plate 6 and the inner tube 4 to break, thereby separating the ring plate 6 from the inner tube 4. At this time, the rotation of the outer tube 5 cannot be used to drive the rotation of the inner tube 4. The pressure relief valve 2 is located inside the outer tube 5. The pressure relief valve 2 can be disassembled directly by using a wrench through the outer tube 5, thus enhancing the anti-disassembly capability of the pressure relief valve 2.

[0019] In Embodiments 2 and 3, the outer tube 5 can move along the inner tube 4. When the outer tube 5 moves, the exposed portion of the pressure relief valve 2 can be increased, leaving more operating space for the pressure relief valve 2 when using it, thus improving the ease of operation of the pressure relief valve 2.

[0020] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A tamper-proof structure for a pressure relief valve, characterized in that, The device includes a connector fitting and a pressure relief valve. The connector fitting is threadedly connected to the pressure relief valve. The connector fitting has an anti-tampering part. The pressure relief valve is located inside the anti-tampering part. The anti-tampering part is an annular metal tube. One end of the metal tube is aligned with one end of the connector fitting, or one end of the metal tube is sleeved on the outer surface of the connector fitting. The metal tube is fixed to the connector fitting by welding. The pressure relief valve is housed inside the metal tube.

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