Safety auxiliary tool for gas detection

Abstract

The utility model discloses a safety auxiliary tool for gas detection, and relates to the technical field of gas detection. The device mainly comprises an installation plate, an installation frame, a plurality of auxiliary rings and an air pipe, the installation plate is installed on the side portion of a coal mine shaft, one auxiliary ring is fixed to one side of the installation plate, and the installation frame is installed on the top wall of the coal mine shaft. The rest of the auxiliary rings are evenly fixed to the installation frame, the distance between the lowermost auxiliary ring and the top wall of the coal mine shaft is 200-300 mm, penetrating holes are formed in the auxiliary rings in a penetrating mode, the air pipe sequentially penetrates through the penetrating holes, and the higher end of the air pipe corresponds to the lowermost auxiliary ring on the installation frame. When the device is used, the gas inlet of the instrument is connected with one end, close to the mounting plate, of the gas inlet pipe, gas suction at the other end of the gas pipe cannot be influenced no matter how an arm shakes by pinching the gas suction ball for multiple times, and the gas inlet is ensured to be stably kept within a specified distance range, so that the accuracy of gas concentration detection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, and particularly relates to a safety auxiliary tool for gas detection. Background Technique

[0002] Coal mining, as an important part of the global energy supply, its safe production has always been the focus in the mining field. Gas (mainly composed of methane) is one of the main hazards in coal mine safety production, and its explosion accidents can cause heavy casualties and economic losses. Therefore, the development of gas detection technology is of great significance for preventing gas accidents and ensuring the safety of miners.

[0003] Currently, the device used for detecting gas concentration is an optical gas detector. When using this device, the operator needs to install the optical gas detector at the end of the gas inspection rod. The operator holds the gas inspection rod, places the rubber hose at the intake end of the carbon dioxide absorption tube at the position to be measured, in the upper part of the roadway air flow, extends the instrument intake port to a position 200 - 300 mm away from the roof, squeezes and sucks the balloon 5 - 10 times, sucks the gas to be measured into the gas chamber, reads the value, presses the light source switch, and observes the position of the black baseline through the eyepiece, and the read value is the measured gas concentration.

[0004] However, during the specific operation, while the operator holds the gas inspection rod, squeezing and sucking the balloon multiple times easily causes the arm to shake, thus making the instrument intake port deviate from the position 200 - 300 mm away from the roof, affecting the accuracy of detection. Moreover, the top walls of some coal mine roadways are relatively high, and there are many obstacles at the bottom of the roadways, making it inconvenient for people to stand and difficult to conduct detection. In view of this problem, this application document provides a safety auxiliary tool for gas detection. Content of the Utility Model

[0005] The purpose of the utility model is: to solve the problems raised in the above background technique, the utility model provides a safety auxiliary tool for gas detection.

[0006] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0007] A safety auxiliary tool for gas detection includes a mounting plate, a mounting frame, several auxiliary rings and an air pipe. The mounting plate is installed on the side wall of the coal mine roadway. One of the auxiliary rings is fixed on one side of the mounting plate. The mounting frame is installed on the top wall of the coal mine roadway. The remaining several auxiliary rings are evenly fixed on the mounting frame and the lowermost auxiliary ring is 200 - 300 mm away from the top wall of the coal mine roadway. A perforation is formed through the auxiliary ring. The air pipe sequentially passes through several perforations, and the higher end of the air pipe corresponds to the lowermost auxiliary ring on the mounting frame.

[0008] Preferably, rounded corners are provided on the sides of the perforations.

[0009] Preferably, the mounting bracket is an inverted L shape, the top side of the mounting bracket is horizontal and fixed to the top wall of the coal mine roadway, and an L-shaped protective groove is formed on the vertical side of the mounting bracket, and the remaining plurality of auxiliary rings are all located inside the protective groove.

[0010] Preferably, a perpendicular mounting rod is installed in the middle of one side of the mounting plate, and one of the auxiliary rings is fixed on the mounting rod, and the mounting rod is used for storing the air pipe.

[0011] Preferably, the mounting rod is rotatably mounted on the mounting plate.

[0012] Preferably, a mounting groove is formed through the middle of the mounting plate, one end of the mounting rod movably passes through the mounting groove and is fixed with a limiting block, an external thread is formed on the outer peripheral side of the mounting rod, and a fastening block is sleeved on the external thread. By rotating the fastening block, the fastening block and the limiting block can clamp and fix the mounting plate.

[0013] Beneficial effects:

[0014] When the utility model is in use, by connecting the instrument air inlet with the end of the air inlet pipe close to the mounting plate and squeezing the balloon multiple times, no matter how the arm shakes, it will not affect the air suction at the other end of the air pipe, ensuring that the air inlet is stably maintained within the specified distance range, thereby improving the accuracy of gas concentration detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 is the Figure 1 three-dimensional sectional view of the present invention;

[0018] Figure 3 is a three-dimensional structural diagram of the mounting bracket of the present invention;

[0019] Figure 4 is a three-dimensional structural diagram of the mounting plate of the present invention.

[0020] Figures 1 - 4 In:

[0021] 1. Mounting plate; 2. Mounting frame; 3. Auxiliary ring; 4. Air pipe; 11. Mounting rod; 12. Mounting groove; 13. Limiting block; 14. Fastening block; 21. Protection groove; 31. Perforation. Detailed implementation mode

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0023] This application provides a safety auxiliary tool for gas detection, mainly used to solve the problems existing in the current gas detection methods, and provides the following technical solutions, which will be described in detail below in conjunction with Figures 1 - 4 make a detailed description:

[0024] A safety auxiliary tool for gas detection mainly includes a mounting plate 1, a mounting frame 2, several auxiliary rings 3 and an air pipe 4. The mounting plate 1 is installed on the vertical side of the coal mine roadway, located at the roadway rib. One of the auxiliary rings 3 is fixed on one side of the mounting plate 1. The mounting frame 2 is installed on the top wall of the coal mine roadway. It should be noted that most of the underground conditions are coal walls. The mounting frame 2 needs to be fixed on the anchor net with hole iron wire or fixed with expansion hooks in the shotcrete roadway. The remaining several auxiliary rings 3 are evenly fixed on the mounting frame 2 and the lowermost auxiliary ring 3 is 200 - 300 mm away from the top wall of the coal mine roadway. A perforation 31 is formed through the auxiliary ring 3. The air pipe 4 sequentially passes through several perforations 31. The higher end of the air pipe 4 corresponds to the lowermost auxiliary ring 3 on the mounting frame 2. First, firmly install the mounting plate 1 on the vertical side wall of the coal mine roadway to ensure the correct position of the mounting plate 1 for the subsequent installation of components. Fix an auxiliary ring 3 on the mounting plate 1. This auxiliary ring 3 will be used to connect the air pipe 4 and the gas detection instrument. Then evenly fix several auxiliary rings 3 on the mounting frame 2. Then install the mounting frame 2 on the top wall of the coal mine roadway to ensure that its horizontal part is parallel to the top wall and is firmly fixed. The lowermost auxiliary ring 3 is 200 - 300 mm away from the top wall to meet the standard height for gas detection. Pass the air pipe 4 sequentially through several perforations 31, align and connect the higher end of the air pipe 4 with the lowermost auxiliary ring 3 on the mounting frame 2 to ensure the stable connection of the air pipe 4 without air leakage and ensure that the distance between the end of the air pipe 4 and the top wall of the coal mine roadway remains unchanged. When performing gas detection, connect the air inlet of the optical gas detector to the end of the air pipe 4 near the auxiliary ring 3 on the mounting plate 1 to ensure good connection tightness. The operator can squeeze the suction balloon to send the gas sample to be measured into the gas detector through the air pipe 4, and at the same time observe the instrument reading. Through the fixation and support of the auxiliary tool, the shaking of the operator's hand-held instrument during detection is avoided, which affects the accuracy of the detection result. The operator does not need to hold the instrument high for a long time, reducing the labor intensity and making the detection process more convenient. The design of the auxiliary tool enables convenient gas detection in coal mine roadways with a high top wall. The operator does not have to adopt dangerous postures or use inconvenient auxiliary tools to reach the appropriate detection height. The fixed position and height ensure the stable intake of gas, thereby improving the accuracy of the detection.

[0025] In this embodiment, a fillet is formed on the side of the perforation 31. The fillet design can reduce the wear of the perforation 31 on the air pipe 4, extend the service life of the air pipe 4, avoid scratches or punctures that may be caused to the operator by the sharp side of the perforation 31, and improve the use safety.

[0026] Further, please refer to Figure 2 and Figure 3, the mounting bracket 2 is an inverted L shape. The top side of the mounting bracket 2 is horizontal and fixed to the top wall of the coal mine roadway. One side of the mounting bracket 2 in the vertical direction is configured with an L-shaped protective groove 21. A number of remaining auxiliary rings 3 are all located inside the protective groove 21, protecting the auxiliary rings 3 from being impacted or interfered by sundries. The inverted L-shaped mounting bracket 2 provides a larger contact area and stability, reducing displacement caused by vibration or impact. The protective groove 21 provides additional physical protection for the auxiliary rings 3 and the air pipe 4, preventing possible collisions or damages in the coal mine roadway. The protective groove 21 helps to improve the safety of the entire gas detection system.

[0027] For the convenience of device storage, please refer to Figure 1 and Figure 4 , in the middle of one side of the mounting plate 1, a perpendicular mounting rod 11 is installed. One of the auxiliary rings 3 is fixed on the mounting rod 11. The mounting rod 11 is used to store the air pipe 4. By storing the redundant air pipe 4 through the mounting rod 11, space is saved, making the entire gas detection auxiliary tool more compact and facilitating storage, reducing the storage space.

[0028] Even further, please refer to Figure 4 , the mounting rod 11 is rotatably installed on the mounting plate 1, simplifying the operation process of storing the air pipe 4. Instead of winding the long air pipe 4, the air pipe 4 can be stored only by rotating the mounting rod 11;

[0029] Specifically, a mounting groove 12 is penetrated through the middle of the mounting plate 1. One end of the mounting rod 11 movably penetrates through the mounting groove 12 and is fixed with a limiting block 13. An external thread is configured on the outer peripheral side of the mounting rod 11, and a fastening block 14 is threadedly sleeved on the external thread. By rotating the fastening block 14, the fastening block 14 and the limiting block 13 can clamp and fix the mounting plate 1. When the device is in use, by rotating the fastening block 14, one end of the fastening block 14 tightly abuts against one side of the mounting plate 1. At this time, the stability of the mounting rod 11 can be ensured, and the stability of the entire auxiliary tool during use can be ensured. When the auxiliary tool is stored, rotate the fastening block 14 to release the abutment with the mounting plate 1. At this time, the mounting rod 11 can rotate to store the air pipe 4, improving the flexibility of use.

[0030] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A safety auxiliary tool for gas detection, characterized in that, It includes a mounting plate (1), a mounting frame (2), several auxiliary rings (3) and an air pipe (4). The mounting plate (1) is installed on the side wall of the coal mine roadway. One of the auxiliary rings (3) is fixed on one side of the mounting plate (1). The mounting frame (2) is installed on the top wall of the coal mine roadway. The remaining several auxiliary rings (3) are evenly fixed on the mounting frame (2), and the lowermost auxiliary ring (3) is 200 - 300 mm away from the top wall of the coal mine roadway. A perforation (31) is formed through the auxiliary ring (3). The air pipe (4) sequentially passes through several perforations (31). The higher end of the air pipe (4) corresponds to the lowermost auxiliary ring (3) on the mounting frame (2).

2. The safety auxiliary tool for gas detection according to claim 1, characterized in that, Rounded corners are formed on the side edges of the perforation (31).

3. A safety auxiliary tool for gas detection according to claim 1, characterized in that, The mounting frame (2) is an inverted L shape. The top side of the mounting frame (2) is horizontal and fixed to the top wall of the coal mine roadway. A L-shaped protective groove (21) is formed on the vertical side of the mounting frame (2). The remaining several auxiliary rings (3) are all located inside the protective groove (21).

4. A safety auxiliary tool for gas detection according to claim 1, characterized in that, A perpendicular mounting rod (11) is installed in the middle of one side of the mounting plate (1). One of the auxiliary rings (3) is fixed on the mounting rod (11). The mounting rod (11) is used to accommodate the air pipe (4).

5. A safety auxiliary tool for gas detection according to claim 4, characterized in that, The mounting rod (11) is rotatably installed on the mounting plate (1).

6. The safety auxiliary tool for gas detection according to claim 5, characterized in that A mounting groove (12) is formed through the middle of the mounting plate (1). One end of the mounting rod (11) movably passes through the mounting groove (12) and is fixed with a limiting block (13). External threads are formed on the outer peripheral side of the mounting rod (11), and a fastening block (14) is threadedly sleeved on the external threads. By rotating the fastening block (14), the fastening block (14) and the limiting block (13) can clamp and fix the mounting plate (1).

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