A protective device for combustible gas alarm

Abstract

This utility model relates to the field of safety protection equipment technology, specifically to a protective device for a combustible gas alarm. The device includes a wall, with a combustible gas alarm fixedly connected to the front surface of the wall. A protective mechanism is provided on the inner wall of the wall. The protective mechanism includes a mounting plate detachably installed on the inner wall of the wall. A movable plate is slidably connected to the inner wall of the mounting plate. A connecting plate is hinged to the rear end of the movable plate, and a slider is hinged to the rear end of the connecting plate. A fixed column is fixedly connected to the rear side of the inner wall of the mounting plate, and a reset component is provided at the rear of the movable plate. In this utility model, when the anti-collision plate is impacted, the arc-shaped structure decomposes the concentrated impact force into tangential and vertical components, avoiding single-point stress overload. Simultaneously, the design of the elastic telescopic rod and the slider linkage further disperses the horizontal impact force to both sides of the mounting plate, thereby extending the overall service life of the anti-collision fence.

Description

Technical Field

[0001] This utility model relates to the field of safety protection equipment technology, and in particular to a combustible gas alarm protection device. Background Technology

[0002] A combustible gas alarm is a safety monitoring device used to detect the concentration of combustible gases (such as methane, propane, hydrogen, etc.) in the environment and issue an alarm when the concentration reaches a set threshold. Its core function is to use sensors to sense the content of combustible gases in the air in real time, and combine this with a signal processing and control system to achieve early warning and prevent explosions, fires, or poisoning accidents caused by the accumulation of combustible gas leaks.

[0003] To protect combustible gas detectors, protective fences are typically installed. However, these fences often employ a rigid planar structure, which makes it difficult to effectively disperse the impact force when subjected to a frontal impact. This can easily lead to problems such as deformation of the protective panels and breakage of connectors. Furthermore, when part of the fence is damaged, the entire fence needs to be dismantled, which is quite troublesome. Therefore, a combustible gas detector protection device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a combustible gas alarm protection device, which aims to improve the existing technology of anti-collision fences that adopt a planar rigid structure, making it difficult to effectively disperse impact force and easily causing deformation and breakage of the protective plate; and the need for complete disassembly when some fences are damaged, which is cumbersome and inconvenient to maintain.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a combustible gas alarm protection device, comprising a combustible gas alarm, wherein the combustible gas alarm is fixedly connected to the front surface of a wall, and a protective mechanism is provided on the inner wall of the wall;

[0006] The protective mechanism includes a mounting plate that can be detachably installed on the inner wall of the wall. A movable plate is slidably connected to the inner wall of the mounting plate. A connecting plate is hinged to the rear end of the movable plate. A slider is hinged to the rear end of the connecting plate. A fixed column is fixedly connected to the rear side of the inner wall of the mounting plate. A reset component is provided at the rear of the movable plate. A rotating frame is rotatably connected to the front of the movable plate. A crash plate is detachably installed on the inner wall of the front of the rotating frame by bolts. There are two sets of mounting plates, which are located on the upper and lower sides of the crash plate, respectively. A movable plate is provided at the front of the lower mounting plate. A positioning component is provided on the inner wall of the rotating frame.

[0007] As a further description of the above technical solution:

[0008] The reset component includes an elastic telescopic rod, the front end of which is fixedly connected to the rear of the movable plate, and the rear end of which is fixedly connected to the inner wall of the mounting plate.

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

[0010] The inner wall of the slider is slidably connected to the outer arc surface of the fixed column.

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

[0012] The front of the crash barrier is curved.

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

[0014] The front of the movable plate is provided with a square groove, and the inner surface of the square groove is larger than the bottom of the anti-collision plate.

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

[0016] The positioning assembly includes a connecting spring, one end of which is fixedly connected to the inner wall of the rotating frame, and the other end of which is fixedly connected to a guide plate. A limit post is fixedly connected to the inner wall of the guide plate, and the bottom end of the limit post is inserted into the top inner wall of the movable plate.

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

[0018] The outer walls of the limiting post and the guide plate are slidably connected to the inner wall of the rotating frame.

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

[0020] The guide plate is elliptical in shape.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, through the cooperation between the wall, gas alarm and its protective mechanism, when the crash barrier is impacted, the arc-shaped structure decomposes the concentrated impact force into tangential and vertical components, avoiding single-point stress overload; at the same time, the design of the elastic telescopic rod and the slider linkage further disperses the horizontal impact force to both sides of the mounting plate, realizing multi-angle absorption and buffering of energy, thereby extending the overall service life of the crash barrier (crash barrier).

[0023] 2. In this utility model, through the mutual cooperation between the positioning components and other structures, when the gas alarm needs maintenance, the limiting column is pulled upward to disengage it from the movable plate insertion position. The connecting spring is compressed, causing the limiting component to move upward to release the limit. The rotating frame can rotate forward around the hinge point and flip upward to open, making room for maintenance operations and thus facilitating the repair of the combustible gas alarm. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the entire utility model.

[0025] Figure 2 This is a three-dimensional schematic diagram of the anti-collision plate of this utility model.

[0026] Figure 3 This is a cross-sectional internal view of the mounting plate of this utility model.

[0027] Figure 4 This is a disassembled schematic diagram of the rotating frame and its anti-collision plate of this utility model.

[0028] Figure 5 This is a cross-sectional internal view of the rotating frame of this utility model.

[0029] Legend:

[0030] 1. Wall; 2. Combustible gas detector; 3. Protective mechanism; 301. Mounting plate; 302. Movable plate; 303. Rotating frame; 304. Anti-collision plate; 305. Bolt; 306. Fixed column; 307. Slider; 308. Connecting plate; 309. Elastic telescopic rod; 310. Movable plate; 4. Positioning assembly; 401. Limiting column; 402. Guide plate; 403. Connecting spring. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1-2This utility model provides an embodiment of a combustible gas alarm protection device, including a combustible gas alarm 2. The combustible gas alarm 2 is fixedly connected to the front surface of a wall 1. The combustible gas alarm 2 continuously detects the content of combustible gases (such as methane, propane, hydrogen, etc.) in the air through a sensor (such as catalytic combustion type, infrared type, etc.) and displays the concentration value in ppm (parts per million) or LEL (lower explosive limit). This is prior art and will not be explained in detail here. The inner wall of the wall 1 is provided with a protective mechanism 3; the combustible gas alarm 2 can be protected by the protective mechanism 3.

[0033] Reference Figures 2-4 The protective mechanism 3 includes a mounting plate 301 detachably mounted on the inner wall of the wall 1. A movable plate 302 is slidably connected to the inner wall of the mounting plate 301. A connecting plate 308 is hinged to the rear end of the movable plate 302. When the movable plate 302 moves backward, it will cause the connecting plate 308 to rotate. A slider 307 is hinged to the rear end of the connecting plate 308. When the connecting plate 308 rotates, it will cause the slider 307 to move. A fixing post 306 is fixedly connected to the rear side of the inner wall of the mounting plate 301. A reset member is provided at the rear of the movable plate 302. The reset member ensures that the movable plate 302 will reset when it is not impacted, thus facilitating the next buffering operation. A rotating part is rotatably connected to the front of the movable plate 302. The rotating frame 303 allows for maintenance and repair of the combustible gas alarm 2. A crash plate 304 is detachably mounted on the front inner wall of the rotating frame 303 via bolts 305. The crash plate 304 directly contacts the impact source. Two sets of mounting plates 301 are provided, located on the upper and lower sides of the crash plate 304 respectively. A movable plate 310 is provided at the front of the lower mounting plate 301. The interior of the lower mounting plate 301 also contains components such as a reset component, a connecting plate 308, and a slider 307, all connected in the same manner. A positioning component 4 is provided on the inner wall of the rotating frame 303, allowing the rotating frame 303 to be opened or closed.

[0034] Reference Figures 2-4The reset component includes an elastic telescopic rod 309. The front end of the elastic telescopic rod 309 is fixedly connected to the rear of the movable plate 302, and the rear of the elastic telescopic rod 309 is fixedly connected to the inner wall of the mounting plate 301. The elastic telescopic rod 309 is formed by two sets of sleeve rods interlocking with each other, which can slide relative to each other to change its overall length. In addition, the elastic telescopic rod 309 has a built-in spring to give it a certain elasticity. The inner wall of the slider 307 is slidably connected to the outer arc surface of the fixed column 306. The sliding setting can disperse the horizontal rearward impact force to both sides. The front of the anti-collision plate 304 is set in an arc shape. The arc structure can decompose the impact force during the collision into a tangential component along the arc surface and a vertical component, avoiding the impact force from concentrating at a certain point or plane. The front of the movable plate 310 is provided with a square groove. The inner surface of the square groove is larger than the bottom of the anti-collision plate 304. The square groove setting facilitates the individual replacement and installation of the corresponding anti-collision plate 304.

[0035] Reference Figures 4-5 The positioning component 4 includes a connecting spring 403. One end of the connecting spring 403 is fixedly connected to the inner wall of the rotating frame 303, and the other end of the connecting spring 403 is fixedly connected to a guide plate 402. A limit post 401 is fixedly connected to the inner wall of the guide plate 402. The elasticity of the connecting spring 403 enables the limit post 401 to have the functions of resetting and limiting. The bottom end of the limit post 401 is inserted into the top inner wall of the movable plate 310. The two are inserted to fix the rotating frame 303 in a vertical state. The outer walls of the limit post 401 and the guide plate 402 are slidably connected to the inner wall of the rotating frame 303. The limit post 401 penetrates the bottom of the rotating frame 303. The through-hole setting facilitates the movement and release of the limit post 401. The guide plate 402 is elliptical. The elliptical setting can play a guiding role.

[0036] Working principle: When the anti-collision plate 304 is subjected to a frontal impact, its front arc-shaped structure decomposes the impact force into a tangential component along the arc surface and a vertical component, preventing the impact force from concentrating at a point or plane. At the same time, the rotating frame 303 pushes the moving plate 302 backward, and the moving plate 302 compresses the elastic telescopic rod 309 (with a built-in spring providing buffering force). Simultaneously, the connecting plate 308 at the rear hinge drives the slider 307 to slide along the fixed column 306 to both sides, dispersing the horizontal impact force to both sides of the mounting plate 301, thus achieving impact reduction. The energy is buffered from multiple angles. After the impact force disappears, the spring return force of the elastic telescopic rod 309 pushes the moving plate 302 forward to reset, which in turn drives the rotating frame 303 and the anti-collision plate 304 to return to their original positions. When one of the multiple anti-collision plates 304 is damaged, the bolt 305 can be turned to release the bolt 305 from limiting the anti-collision plate 304. Then the damaged anti-collision plate 304 can be moved forward, and then a new anti-collision plate 304 can be replaced and the bolt 305 can be turned to complete the fixation. There is no need to disassemble the overall protective mechanism 3.

[0037] When maintenance is required on the combustible gas alarm 2, pull upward on the limiting post 401 that passes through the bottom of the rotating frame 303, causing it to disengage from the insertion position at the top of the movable plate 310. The connecting spring 403 is compressed due to the release of the limiting post, which drives the guide plate 402 and the limiting post 401 to move upward. At this time, the rotating frame 303 loses its limiting position and can rotate forward around the hinge point with the movable plate 302 to open it, allowing the rotating frame 303 to flip upward and then perform maintenance. After maintenance is completed, close the rotating frame 303 to a vertical position. The elliptical structure of the guide plate 402 guides the limiting post 401 to align with the top of the movable plate 310. The elastic force of the connecting spring 403 pushes the limiting post 401 to re-insert into the movable plate 310 to achieve fixation.

[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 combustible gas alarm protection device, comprising a combustible gas alarm (2), wherein the combustible gas alarm (2) is fixedly connected to the front surface of a wall (1), and a protective mechanism (3) is provided on the inner wall of the wall (1); characterized in that: The protective mechanism (3) includes a mounting plate (301) detachably mounted on the inner wall of the wall (1). A movable plate (302) is slidably connected to the inner wall of the mounting plate (301). A connecting plate (308) is hinged to the rear end of the movable plate (302). A slider (307) is hinged to the rear end of the connecting plate (308). A fixing column (306) is fixedly connected to the rear side of the inner wall of the mounting plate (301). A reset component is provided at the rear of the movable plate (302). The front of the movable plate (302) is rotatably connected to a rotating frame (303). The inner wall of the front of the rotating frame (303) is detachably mounted with a crash plate (304) by bolts (305). There are two sets of mounting plates (301), which are located on the upper and lower sides of the crash plate (304) respectively. The front of the lower mounting plate (301) is provided with a movable plate (310). The inner wall of the rotating frame (303) is provided with a positioning component (4).

2. A combustible gas alarm guard according to claim 1, wherein: The reset component includes an elastic telescopic rod (309), the front end of which is fixedly connected to the rear of the movable plate (302), and the rear of which is fixedly connected to the inner wall of the mounting plate (301).

3. A combustible gas alarm guard according to claim 1, wherein: The inner wall of the slider (307) is slidably connected to the outer arc surface of the fixed column (306).

4. A combustible gas alarm guard according to claim 1, wherein: The front of the anti-collision plate (304) is set in an arc shape.

5. A combustible gas alarm protector according to claim 1, wherein: The front of the movable plate (310) is provided with a square groove, the inner surface of which is larger than the bottom of the anti-collision plate (304).

6. A combustible gas alarm guard according to claim 1, wherein: The positioning component (4) includes a connecting spring (403), one end of which is fixedly connected to the inner wall of the rotating frame (303), and the other end of which is fixedly connected to a guide plate (402). A limit post (401) is fixedly connected to the inner wall of the guide plate (402), and the bottom end of the limit post (401) is inserted into the top inner wall of the movable plate (310).

7. A combustible gas alarm guard according to claim 6, wherein: The outer walls of the limiting post (401) and the guide plate (402) are slidably connected to the inner wall of the rotating frame (303).

8. A combustible gas alarm guard according to claim 6, wherein: The guide plate (402) is set to an ellipse shape.

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