Diaphragm type pressure release valve

Abstract

The utility model discloses a diaphragm type pressure release valve relates to pressure release valve technical field, including pressure release valve main part and conical tube, pressure release valve main part both ends are fixed with mounting ring, conical tube is fixed in the middle of mounting ring far away pressure release valve main part side, the surface of mounting ring is provided with a plurality of strip-shaped mouth, the strip-shaped mouth is equipped with the pressure release valve main part, the pressure release valve main part is equipped with the pressure release valve main part, and the pressure release valve main part is equipped with the pressure release valve main part. And mounting blocks are slidably arranged in the multiple strip-shaped openings, mounting holes are formed in the middles of the mounting blocks, inner threaded pipes are fixedly arranged on one sides of the mounting blocks, threaded rods are connected with the interiors of the inner threaded pipes in a threaded and sleeved mode, and one ends of the threaded rods are rotationally connected with the inner walls of the strip-shaped openings. According to the pressure release valve, the conical pipe is arranged on the outer side of the flange, the pressure release valve can be conveniently connected with pipelines with different diameters, the flange is provided with the mounting block with the adjustable position, the pressure release valve can be conveniently fixed with the pipelines with the different diameters, and the applicability of the pressure release valve is improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure relief valve technology, specifically to a diaphragm-type pressure relief valve. Background Technology

[0002] In industrial production and fluid transport systems, pressure relief valves are typically installed to protect equipment and pipelines from damage caused by excessive pressure. Traditional diaphragm-type pressure relief valves often have limitations when connecting to pipelines. For example, their flange interface dimensions are fixed, allowing connection only to pipes of a specific diameter, making it difficult to accommodate pipes of different diameters. This not only increases replacement and maintenance costs but also limits the valve's applicability. Furthermore, existing pressure relief valves have fixed mounting hole positions on the flange during installation, making adjustment impossible based on the actual pipeline mounting hole positions. This leads to installation inconvenience and may even affect the valve's normal operation due to improper installation. Utility Model Content

[0003] In view of the problems existing in the above-mentioned diaphragm pressure relief valve, this utility model is proposed.

[0004] Therefore, the purpose of this utility model is to provide a diaphragm-type pressure relief valve, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A diaphragm-type pressure relief valve includes a pressure relief valve body and a tapered tube. Mounting rings are fixedly installed at both ends of the pressure relief valve body. The tapered tube is fixedly installed at the center of the side of the mounting ring away from the pressure relief valve body. Multiple slots are formed on the surface of the mounting ring, and mounting blocks are slidably installed inside each slot. A mounting hole is formed in the center of each mounting block. An internally threaded tube is fixedly installed on one side of the mounting block. A threaded rod is threaded into the internal thread of the internally threaded tube. One end of the threaded rod is rotatably connected to the inner wall of the slot. A rotating ring is concentrically rotatably fitted onto the outer wall of the mounting ring. A transmission mechanism for driving the multiple threaded rods to rotate is provided on the inner side of the rotating ring.

[0007] Preferably, the transmission mechanism includes bevel gears and bevel gear rings, with multiple bevel gears fixedly sleeved on the end of the lead screw away from the mounting block, and the bevel gear ring fixedly sleeved on the inner wall of the rotating ring, and all of the multiple bevel gears meshing with the bevel gear ring.

[0008] Preferably, a threaded hole is provided on one side of the rotating ring, and a lead screw is threaded into the inside of the threaded hole, with one end of the lead screw abutting against the outer wall of the mounting ring.

[0009] Preferably, a knob is fixedly sleeved at the end of the lead screw away from the mounting ring.

[0010] Preferably, the outer wall of the tapered tube is provided with a sealing gasket.

[0011] Preferably, grooves are provided on both sides of the strip-shaped opening, and a slider is provided inside the groove. One side of the slider is fixedly connected to one side of the corresponding mounting block.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] 1. This utility model utilizes the meshing transmission between the bevel gear ring and the bevel gear on the inner side of the rotating ring. Rotating the rotating ring synchronously drives multiple threaded rods to rotate, allowing the mounting block to slide along the strip opening to adjust its position and adapt to the mounting hole spacing of pipes with different diameters.

[0014] 2. This utility model, through the tapered tube's variable diameter design and the cooperation of the sealing gasket, can tightly fit pipes with different inner diameters. The sealing gasket is made of nitrile rubber, which improves the sealing performance of the tapered tube 3 and the pipe connection. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the structure of a diaphragm-type pressure relief valve proposed in this utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the end face structure of the middle flange;

[0018] Figure 3 for Figure 2 A three-dimensional view of the connection structure between the middle slider and the limiting block.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Pressure relief valve body; 2. Mounting ring; 3. Tapered tube; 4. Rotating ring; 5. Mounting block; 6. Internal threaded tube; 7. Threaded tube; 8. Bevel gear; 9. Bevel gear ring; 10. Slider; 11. Lead screw; 12. Knob. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] This utility model discloses a diaphragm-type pressure relief valve.

[0023] Reference Figures 1-3 A diaphragm-type pressure relief valve includes a pressure relief valve body 1 and a tapered tube 3. Mounting rings 2 are fixedly installed at both ends of the pressure relief valve body 1. The tapered tube 3 is fixedly installed at the middle of the side of the mounting rings 2 away from the pressure relief valve body 1. A sealing gasket is provided on the outer wall of the tapered tube 3. Multiple slots are formed on the surface of the mounting rings 2, and mounting blocks 5 are slidably installed inside each slot. A mounting hole is formed in the middle of each mounting block 5. An internally threaded tube 6 is fixedly installed on one side of the mounting block 5, and the internal thread of the internally threaded tube 6 is threaded. A threaded rod 7 is connected, one end of which is rotatably connected to the inner wall of the strip-shaped opening. A rotating ring 4 is concentrically rotatably sleeved on the outer wall of the mounting ring 2. A threaded hole is opened on one side of the rotating ring 4, and a lead screw 11 is threaded inside the threaded hole. One end of the lead screw 11 abuts against the outer wall of the mounting ring 2, which can restrict the rotation of the rotating ring 4. A knob 12 is fixedly sleeved on the end of the lead screw 11 away from the mounting ring 2 to facilitate the rotation of the lead screw 11. A transmission mechanism for driving multiple threaded rods 7 to rotate is provided on the inner side of the rotating ring 4.

[0024] Reference Figures 1-3 The transmission mechanism includes bevel gears 8 and bevel rings 9. Multiple bevel gears 8 are fixedly sleeved on the end of the lead screw away from the mounting block 5, and bevel rings 9 are fixedly sleeved on the inner wall of the rotating ring 4. Multiple bevel gears 8 are meshed with bevel rings 9.

[0025] Reference Figures 1-3 The two sides of the strip-shaped opening are provided with sliding grooves, and the inside of the sliding grooves is provided with sliders 10. One side of the slider 10 is fixedly connected to one side of the corresponding mounting block 5.

[0026] In this invention, during use, depending on the target pipe diameter, first loosen knob 12 to release the locking of rotating ring 4, then manually rotate rotating ring 4 to move mounting block 5 along the slot through bevel gear transmission until the mounting hole aligns with the pipe flange hole; then insert tapered tube 3 into the pipe, using sealing gasket to form an initial seal; finally, tighten knob 12 to fix rotating ring 4, and complete the fixation by passing bolts through the mounting hole. This structure achieves rapid adjustment and locking of the mounting hole position through mechanical transmission, and combined with the variable diameter sealing design of the tapered tube, effectively solves the problem of poor adaptability of traditional pressure relief valves.

[0027] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A diaphragm-type pressure relief valve, comprising a pressure relief valve body (1) and a conical tube (3), characterized in that, The pressure relief valve body (1) is fixedly provided with mounting rings (2) at both ends. The tapered tube (3) is fixedly provided in the middle of the side of the mounting ring (2) away from the pressure relief valve body (1). The surface of the mounting ring (2) is provided with multiple strip-shaped openings. The interior of each of the multiple strip-shaped openings is provided with a mounting block (5). The middle of the mounting block (5) is provided with a mounting hole. An internal threaded tube (6) is fixedly provided on one side of the mounting block (5). The internal threaded tube (6) is threaded with a threaded rod (7). One end of the threaded rod (7) is rotatably connected to the inner wall of the strip-shaped opening. The outer wall of the mounting ring (2) is concentrically rotatably fitted with a rotating ring (4). The inner side of the rotating ring (4) is provided with a transmission mechanism that drives the multiple threaded rods (7) to rotate.

2. The diaphragm-type pressure relief valve according to claim 1, characterized in that, The transmission mechanism includes bevel gears (8) and bevel rings (9). Multiple bevel gears (8) are fixedly sleeved on the end of the lead screw away from the mounting block (5). The bevel rings (9) are fixedly sleeved on the inner wall of the rotating ring (4). Multiple bevel gears (8) are meshed with the bevel rings (9).

3. The diaphragm-type pressure relief valve according to claim 1, characterized in that, A threaded hole is provided on one side of the rotating ring (4), and a lead screw (11) is threaded inside the threaded hole. One end of the lead screw (11) abuts against the outer wall of the mounting ring (2).

4. The diaphragm-type pressure relief valve according to claim 3, characterized in that, A knob (12) is fixedly sleeved at the end of the lead screw (11) away from the mounting ring (2).

5. The diaphragm-type pressure relief valve according to claim 1, characterized in that, The outer wall of the tapered tube (3) is provided with a sealing gasket.

6. The diaphragm-type pressure relief valve according to claim 1, characterized in that, Both sides of the strip-shaped opening are provided with sliding grooves, and a slider (10) is provided inside the sliding groove. One side of the slider (10) is fixedly connected to one side of the corresponding mounting block (5).

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