Explosion-proof valve leakage detection clamping tool

Abstract

The utility model relates to the technical field of explosion-proof valves of high-pressure gas cylinders, and provides an explosion-proof valve leakage detection clamping tool, which comprises a main body, a displacement assembly, a bending assembly and a detection assembly, and is characterized in that the bending assembly is arranged to reinforce high-pressure gas cylinders with different sizes and shapes, and after the displacement assembly pre-clamps and fixes two sides of a cylinder body, the high-pressure gas cylinders with different sizes and shapes are clamped and fixed by the detection assembly. An output shaft of a second motor is in meshing transmission in a rack through a straight gear, and a rack cabinet slides in a guide rod in an arc shape through a sliding block, so that a first electric telescopic rod is driven to move through a first connecting rod and a second connecting rod, and the first electric telescopic rod drives a guide block to slide in a sliding groove through a mounting frame; according to the anti-explosion valve detection device, the bending plate is bent to be attached to the surface of the bottle body, and the mounting frame is pressurized through starting of the first electric telescopic rod, so that the bent bending plate reinforces the bottle body, subsequent detection of the anti-explosion valve is facilitated, and the stability of the bottle body and the accuracy of a detection result are improved.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof valve technology for high-pressure gas cylinders, and in particular to a clamping fixture for detecting leakage in explosion-proof valves. Background Technology

[0002] The explosion-proof valve for high-pressure gas cylinders is an important safety device designed to prevent explosions when the internal pressure of high-pressure gas cylinders rises abnormally.

[0003] For example, CN209665208U discloses a clamping fixture for detecting leakage in explosion-proof valves, including a testing platform. The bottom wall of the testing platform is through-through along its length. A placement platform is slidably fitted onto the testing platform. A vertical channel is opened in the center of the placement platform. An annular groove is opened on the upper surface of the placement platform. An explosion-proof valve body is placed on the top of the placement platform. Positioning holes are symmetrically opened on both sides of the placement platform. The inner wall of the positioning holes is pre-threaded. Through holes are symmetrically opened on both sides of the testing platform. The testing platform is threadedly engaged with the placement platform by fastening screws. This utility model solves the problem that clamping fixtures cannot meet the needs of explosion-proof valve leakage detection in actual production. It provides stable clamping for leakage detection of explosion-proof valve bodies, improves adaptability, is suitable for batch product testing, and improves production efficiency.

[0004] However, in the current technology, when people test a clamping fixture for detecting leaks in an explosion-proof valve, they need to first fix the high-pressure gas cylinder before testing the explosion-proof valve. Since the high-pressure gas cylinders are of different sizes, their stability is poor when they are fixed, which affects the detection effect of gas leaks in the explosion-proof valve, thus limiting the practicality of the device to a certain extent. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that the poor stability of high-pressure gas cylinders when fixed due to their varying sizes affects the detection effect of gas leaks in explosion-proof valves.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a clamping fixture for detecting leakage in an explosion-proof valve, comprising a main body, a displacement component, a bending component, and a detection component. The bending component is located at the axis of the inner sidewall of the main body, the displacement component is located at the edge of the inner sidewall of the main body, and the detection component is located on the upper surface of the main body. The bending component includes two arc-shaped frames, each with a rack fixedly connected to one side of its inner bottom wall. Guide rods are fixedly connected to the inner sidewalls of both arc-shaped frames, and sliders are slidably connected to the surfaces of both guide rods. A second motor is fixedly connected to the lower surface of the block. The output shafts of the two second motors are driven by spur gears, which mesh with racks. A first connecting rod is fixedly connected to the upper surface of the two sliders. A second connecting rod is fixedly connected to the outer side wall of the two first connecting rods. A first electric telescopic rod is fixedly connected to one end of the two second connecting rods. A mounting bracket is fixedly connected to the output end of the two first electric telescopic rods. Guide blocks are symmetrically and movably connected to the inner side wall of the two mounting brackets through connecting shafts. The guide blocks are slidably connected to the bending plate through a sliding groove.

[0007] In one preferred embodiment, the displacement assembly includes a connecting frame and a first motor, with a protective pad fixedly connected to the center of the inner side of the connecting frame.

[0008] In a preferred embodiment, the first motor is fixedly connected to the outer side wall of the main body, and the output shaft of the first motor is driven by a bidirectional lead screw.

[0009] In a preferred embodiment, the surface of the bidirectional lead screw is symmetrically threaded with displacement blocks, and anti-slip protrusions are provided on the inner sides of the two displacement blocks. One side of the anti-slip protrusions is fixedly connected to the bending plate.

[0010] In a preferred embodiment, the detection component has two fixing plates, which are symmetrically fixedly connected to the upper surface of the main body, and a second electric telescopic rod is fixedly connected to the inner side of each of the two fixing plates.

[0011] In a preferred embodiment, the output ends of both second electric telescopic rods are connected to protective sleeves, and detection pipes are fixedly connected to the surfaces of both protective sleeves.

[0012] In a preferred embodiment, a gas detector is fixedly connected to the surface of each of the two detection pipes, and an alarm is fixedly connected to the upper surface of each of the two gas detectors.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] This invention reinforces high-pressure gas cylinders of different sizes and shapes by incorporating a bending assembly. After the displacement assembly pre-clamps and fixes both sides of the cylinder, the output shaft of the second motor drives the transmission through a spur gear meshing in a rack. The rack and pinion mechanism slides in an arc shape in the guide rod via a slider, thereby driving the first electric telescopic rod to move through the first and second connecting rods. The first electric telescopic rod drives the guide block to slide in the groove through the mounting frame, causing the bending plate to bend and fit against the surface of the cylinder. The activation of the first electric telescopic rod applies pressure to the mounting frame, thereby reinforcing the cylinder with the bent plate. This facilitates subsequent testing of the explosion-proof valve and improves the stability of the cylinder and the accuracy of the test results. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a clamping fixture for detecting leakage of an explosion-proof valve provided by this utility model;

[0016] Figure 2 A schematic diagram of the displacement component of a clamping fixture for detecting leakage in an explosion-proof valve, provided by this utility model;

[0017] Figure 3 A schematic diagram of the bending component of a clamping fixture for detecting leakage of an explosion-proof valve provided by this utility model;

[0018] Figure 4 A schematic diagram of the detection component of a leak detection clamping fixture for explosion-proof valves provided by this utility model;

[0019] Legend:

[0020] 1. Main body; 2. Fixing plate; 3. First motor; 4. Connecting frame; 5. Two-way lead screw; 6. Displacement block; 7. Anti-slip protrusion; 8. Bending plate; 9. Protective pad; 10. Arc frame; 11. Guide rod; 12. Rack; 13. Slider; 14. Second motor; 15. Spur gear; 16. First connecting rod; 17. Second connecting rod; 18. First electric telescopic rod; 19. Mounting frame; 20. Guide block; 21. Slide groove; 22. Second electric telescopic rod; 23. Protective sleeve; 24. Detection pipe; 25. Gas detector; 26. Alarm. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a clamping fixture for detecting leakage in an explosion-proof valve, comprising a main body 1, a displacement component, a bending component, and a detection component. The bending component is located at the axis of the inner sidewall of the main body 1, the displacement component is located at the edge of the inner sidewall of the main body 1, and the detection component is located on the upper surface of the main body 1. The bending component includes two arc-shaped frames 10, each with a rack 12 fixedly connected to one side of its inner bottom wall. Each arc-shaped frame 10 has a guide rod 11 fixedly connected to its inner sidewall. Each guide rod 11 has a slider 13 slidably connected to its surface. Each slider 13 has a second motor 14 fixedly connected to its lower surface. Each second motor 14 has a spur gear 15 drivingly connected to its output shaft, and the spur gear 15 meshes with the rack 12. Each slider 13 has a first connecting rod 16 fixedly connected to its upper surface, and each first connecting rod 16 has a second connecting rod 17 fixedly connected to its outer sidewall. One end of each of the two second connecting rods 17 is fixedly connected to a first electric telescopic rod 18. The output ends of each of the two first electric telescopic rods 18 are fixedly connected to a mounting bracket 19. The inner sidewalls of each of the two mounting brackets 19 are symmetrically connected to guide blocks 20 via connecting shafts. The guide blocks 20 are slidably connected to the bending plate 8 via a sliding groove 21. The output shaft of the second motor 14 is driven by a spur gear 15 meshing in a rack 12. The rack 12 slides in an arc shape in the guide rod 11 via a slider 13, thereby driving the first electric telescopic rod 18 to move via the first connecting rod 16 and the second connecting rod 17. The first electric telescopic rod 18 drives the guide block 20 to slide in the sliding groove 21 via the mounting bracket 19, causing the bending plate 8 to bend and fit against the surface of the bottle. The activation of the first electric telescopic rod 18 applies pressure to the mounting bracket 19, thereby reinforcing the bottle body with the bent plate 8 and improving the stability of the bottle body.

[0023] like Figure 1-4 As shown, the displacement assembly includes a connecting frame 4 and a first motor 3. A protective pad 9 is fixedly connected to the center of the inner side of the connecting frame 4. The first motor 3 is fixedly connected to the outer side wall of the main body 1. The output shaft of the first motor 3 is driven by a bidirectional lead screw 5. The surface of the bidirectional lead screw 5 is symmetrically threaded with displacement blocks 6. Anti-slip protrusions 7 are provided on the inner side of the two displacement blocks 6. One side of the anti-slip protrusions 7 is fixedly connected to the bending plate 8, and one side of the bottle body abuts against the protective pad 9. At this time, the first motor 3 is started, and the output shaft of the first motor 3 drives the bidirectional lead screw 5 to rotate. The bidirectional lead screw 5 drives the anti-slip protrusions 7 to move towards each other through the displacement blocks 6, so as to pre-clamp the two sides of the bottle body for subsequent reinforcement.

[0024] like Figure 1-4As shown, the detection assembly has two fixed plates 2, which are symmetrically fixed to the upper surface of the main body 1. A second electric telescopic rod 22 is fixedly connected to the inner side of each fixed plate 2. A protective sleeve 23 is connected to the output end of each of the two electric telescopic rods 22. A detection pipe 24 is fixedly connected to the surface of each of the two protective sleeves 23. A gas detector 25 is fixedly connected to the surface of each of the two detection pipes 24. An alarm 26 is fixedly connected to the upper surface of each of the two gas detectors 25. The extension of the second electric telescopic rod 22 drives the protective sleeve 23 to step forward, thereby sealing the valve installation location. The gas detector 25 detects the gas at the valve installation location through the detection pipe 24. When a gas leak occurs, the alarm 26 is triggered to promptly alert the operator, saving maintenance time and facilitating timely maintenance of the explosion-proof valve, thus improving equipment safety.

[0025] Working principle:

[0026] In use, first place the bottle on the surface of the main body 1, with one side of the bottle abutting against the protective pad 9. Then, start the first motor 3. The output shaft of the first motor 3 drives the bidirectional lead screw 5 to rotate. The bidirectional lead screw 5, through the displacement block 6, drives the anti-slip protrusions 7 to move towards each other, pre-clamping both sides of the bottle. Simultaneously, the displacement block 6 moves, and the first electric telescopic rod 18 extends, causing the bending plate 8 and the anti-slip protrusions 7 to move synchronously. The output shaft of the second motor 14 is driven by a spur gear 15 meshing in the rack 12. The rack 12 slides in an arc shape in the guide rod 11 through the slider 13, thereby driving the first electric telescopic rod 18 to move via the first connecting rod 16 and the second connecting rod 17. The first electric telescopic rod 18 drives the guide block 20 to slide in the slide groove 21 through the mounting frame 19, so that the bending plate 8 bends and fits against the surface of the bottle. The activation of the first electric telescopic rod 18 pressurizes the mounting frame 19, thereby reinforcing the bottle body with the bent plate 8. This is used to reinforce high-pressure gas cylinders of different sizes and shapes. When the explosion-proof valve on the bottle body is to be tested, the second electric telescopic rod 22 extends and drives the protective sleeve 23 to move inward, thereby sealing the explosion-proof valve. The gas detector 25 detects the gas at the valve installation point through the detection pipe 24. When gas leaks, it will trigger the alarm 26 to promptly remind the operator, thus improving the overall safety of the device.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A clamping fixture for detecting leakage in an explosion-proof valve, comprising a main body (1), a displacement assembly, a bending assembly, and a detection assembly, characterized in that: The bending assembly is located at the axis of the inner wall of the main body (1), the displacement assembly is located at the edge of the inner wall of the main body (1), and the detection assembly is located on the upper surface of the main body (1). The bending assembly includes two arc-shaped frames (10). A rack (12) is fixedly connected to one side of the inner bottom wall of each of the two arc-shaped frames (10). A guide rod (11) is fixedly connected to the inner wall of each of the two arc-shaped frames (10). A slider (13) is slidably connected to the surface of each of the two guide rods (11). A second motor (14) is fixedly connected to the lower surface of each of the two sliders (13). A spur gear is driven through the output shaft of each of the two second motors (14). 15), and the spur gear (15) meshes with the rack (12). The upper surfaces of the two sliders (13) are fixedly connected with the first connecting rod (16). The outer walls of the two first connecting rods (16) are fixedly connected with the second connecting rod (17). One end of the two second connecting rods (17) is fixedly connected with the first electric telescopic rod (18). The output ends of the two first electric telescopic rods (18) are fixedly connected with the mounting bracket (19). The inner walls of the two mounting brackets (19) are symmetrically connected with the guide block (20) through the connecting shaft. The guide block (20) is slidably connected with the bending plate (8) through the slide groove (21).

2. The explosion-proof valve leakage detection clamping fixture according to claim 1, characterized in that: The displacement assembly includes a connecting frame (4) and a first motor (3), and a protective pad (9) is fixedly connected to the center of the inner side of the connecting frame (4).

3. The explosion-proof valve leakage detection clamping fixture according to claim 2, characterized in that: The first motor (3) is fixedly connected to the outer side wall of the main body (1), and the output shaft of the first motor (3) is connected to a bidirectional lead screw (5).

4. The explosion-proof valve leakage detection clamping fixture according to claim 3, characterized in that: The surface of the bidirectional lead screw (5) is symmetrically threaded with displacement blocks (6), and anti-slip protrusions (7) are provided on the inner side of the two displacement blocks (6). One side of the anti-slip protrusions (7) is fixedly connected to the bending plate (8).

5. The explosion-proof valve leakage detection clamping fixture according to claim 1, characterized in that: The detection component has two fixing plates (2), which are symmetrically fixedly connected to the upper surface of the main body (1). The inner sides of the two fixing plates (2) are fixedly connected to a second electric telescopic rod (22).

6. The explosion-proof valve leakage detection clamping fixture according to claim 5, characterized in that: The output ends of the two second electric telescopic rods (22) are all connected to protective sleeves (23), and the surfaces of the two protective sleeves (23) are all fixedly connected to detection pipes (24).

7. The explosion-proof valve leakage detection clamping fixture according to claim 6, characterized in that: Gas detectors (25) are fixedly connected to the surfaces of both detection pipes (24), and alarms (26) are fixedly connected to the upper surfaces of both gas detectors (25).

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