Coal mine underground gas monitoring device

Abstract

The utility model discloses a coal mine underground gas monitoring device, and relates to the technical field of mining safety equipment. The system comprises a ground central station, a monitoring substation and a sensing module, the ground central station is in signal connection with the monitoring substation through a network cable, the monitoring substation is in signal connection with the sensing module through an optical fiber, terminal equipment of the monitoring substation comprises a monitoring substation machine box, a protection assembly is arranged outside the monitoring substation machine box, and the monitoring substation machine box is connected with the sensing module through an optical fiber. An opening assembly is arranged on the protection assembly; the protection assembly comprises a protection box, a box cover is detachably installed on the upper end face of the protection box, a reinforcing plate is fixedly arranged on the inner wall of the protection box, and an elastic pad is fixedly arranged on the inner wall of the reinforcing plate. According to the monitoring substation machine box, the protection assembly is arranged outside the monitoring substation machine box, the protection box and the reinforcing plate in the protection assembly resist impact force from the outside, the elastic cushion has certain elasticity, the monitoring substation machine box in the protection box is effectively protected, the monitoring substation machine box is prevented from being damaged, and therefore the service life of the monitoring substation machine box is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mine safety equipment, specifically is coal mine underground gas monitoring device. BACKGROUND

[0002] Coal seam gas, also known as coalbed methane. The mixed gas composed of methane, carbon dioxide and nitrogen escaping from coal and surrounding rock, gas is a harmful factor in coal mine production, it not only pollutes the air, and when the air gas content is 5% ~ 16%, meet fire will cause explosion, cause accident;

[0003] Gas monitoring device is an important means of monitoring gas concentration in mine, through the sensor installed in the mine, real-time monitoring of gas concentration, and can real-time alarm, provide sufficient escape time for miners;

[0004] However, the gas monitoring device in the prior art still has some defects:

[0005] The monitoring substation carried in the gas monitoring device needs to be installed in the coal mine underground roadway during use, as the environment of the coal mine underground roadway is relatively poor, and the roadway is often in the construction state, if the underground worker operates improperly, the monitoring substation is easy to be damaged due to impact, thereby affecting the service life of the monitoring substation. UTILITY MODEL CONTENT

[0006] In order to solve the problem that the monitoring substation in the gas monitoring device is easy to be damaged, the purpose of the utility model is to provide a coal mine underground gas monitoring device.

[0007] In order to solve the above technical problems, the utility model adopts the following technical scheme: the coal mine underground gas monitoring device, including ground central station, monitoring substation and sensing module, the ground central station is connected with the monitoring substation signal through network cable, the monitoring substation is connected with the sensing module signal through optical fiber, the terminal equipment of the monitoring substation includes monitoring substation machine box, the outside of the monitoring substation machine box is provided with protection assembly, the protection assembly is equipped with opening assembly.

[0008] The protection assembly includes a protection box, the upper end face of the protection box is detachably installed with a box cover, the inner wall of the protection box is fixedly provided with a reinforcing plate, the inner wall of the reinforcing plate is fixedly provided with an elastic pad, and the outer shell of the monitoring substation machine box and the inner wall of the elastic pad are movably contacted.

[0009] Preferably, the lower surface of the box cover is fixedly provided with a back type ring, the back type ring is made of elastic material, the upper end face of the protection box is provided with a back type groove, and the inner walls of the back type ring and the back type groove are movably contacted.

[0010] Preferably, the lower surface of the box cover is fixedly provided with four evenly distributed fixing shafts, one end of the fixing shaft is fixedly provided with an inserting rod, the outer wall of the inserting rod is fixedly provided with a plurality of elastic sheets arranged in a ring array, the bottom wall of the concave groove is provided with four evenly distributed inserting grooves, one end of the inserting rod is movably contacted with the bottom wall of the inserting groove, and one end of the elastic sheet is movably contacted with the peripheral wall of the inserting groove.

[0011] Preferably, the opening assembly comprises two cover plates, the two sides of the protective box are provided with opening grooves, the cover plates and the opening grooves are horizontally corresponding, the opposite sides of the two cover plates are fixedly provided with concave rubber rings, and the two sides of the protective box are provided with sealing grooves in an interference fit manner.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] In the utility model, the protective assembly is arranged outside the monitoring substation machine box, the protective box and the reinforcing plate in the protective assembly resist the impact force from the outside, the elastic pad has a certain elasticity, the monitoring substation machine box in the protective box is effectively protected, the monitoring substation machine box is prevented from being damaged, and therefore the service life of the monitoring substation machine box is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 It is a component schematic view of the utility model underground gas monitoring device of coal mine.

[0016] Figure 2 It is a structure schematic view of the utility model protective assembly and opening assembly.

[0017] Figure 3 It is a separation structure schematic view of the utility model monitoring substation machine box and protective box and box cover.

[0018] Figure 4 It is an explosion and protective box partial section view of the utility model protective assembly and opening assembly.

[0019] Figure 5 It is an A part enlarged schematic view in the utility model Figure 4 .

[0020] Figure 6 It is a structure schematic view of the utility model box cover.

[0021] Figure 7 This is a schematic diagram of the structure of the spring sheet of this utility model.

[0022] In the diagram: 1. Monitoring substation box; 2. Protective components; 21. Protective box; 211. Fixing ear; 212. Mounting hole; 22. Box cover; 23. Reinforcing plate; 24. Elastic pad; 25. U-shaped ring; 26. U-shaped groove; 27. Fixing shaft; 28. Connecting rod; 281. Spring; 29. ​​Connecting slot; 3. Opening assembly; 31. Cover plate; 32. Opening slot; 33. U-shaped rubber ring; 34. Sealing groove; 35. Ear plate. Detailed Implementation

[0023] 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.

[0024] Example: Figures 1-7 As shown, this utility model provides a coal mine underground gas monitoring device, including a ground central station, monitoring substations, and sensor modules. The ground central station is connected to the monitoring substations via a network cable, and the monitoring substations are connected to the sensor modules via optical fiber. The ground central station includes a monitoring host, display equipment, printing equipment, and power supply equipment. The sensor modules include a methane sensor, a carbon monoxide sensor, an oxygen sensor, a wind speed sensor, a temperature sensor, a start / stop sensor, a carbon dioxide sensor, a dust sensor, and a pressure sensor. The monitoring substations are responsible for receiving data transmitted from the sensor modules, performing preliminary processing, and storing the data. The ground central station uses... The storage, display, printing, and querying of data, as well as the display of monitoring data, allow surface personnel to promptly know the methane content in the air of the coal mine. This is existing technology and will not be elaborated here. The terminal equipment of the monitoring substation includes a monitoring substation box 1. The monitoring substation box 1 is equipped with a protective component 2 on its exterior. By setting the protective component 2, the protective component 2 can protect the monitoring substation box 1 and prevent damage to the monitoring substation box 1 due to the harsh underground environment. The protective component 2 is provided with an opening component 3. By setting the opening component 3, it is convenient for underground workers to connect optical fibers or other lines to the port of the monitoring substation box 1.

[0025] The protection assembly 2 comprises a protection box 21, the upper end face of the protection box 21 is detachably provided with a box cover 22, both sides of the protection box 21 are fixedly provided with two fixing ears 211, the fixing ears 211 are provided with mounting holes 212, the inner wall of the protection box 21 is fixedly provided with a reinforcing plate 23, the inner wall of the reinforcing plate 23 is fixedly provided with an elastic pad 24, the outer shell of the monitoring substation machine box 1 and the inner wall of the elastic pad 24 are movably contacted, by arranging the protection box 21, the reinforcing plate 23 and the elastic pad 24, the protection box 21 and the reinforcing plate 23 can resist the impact force from the outside, the elastic pad 24 has a certain elasticity, thereby effectively protecting the monitoring substation machine box 1 in the protection box 21.

[0026] The lower surface of the box cover 22 is fixedly provided with a loop-shaped ring 25, the loop-shaped ring 25 is made of elastic material, the upper end face of the protection box 21 is provided with a loop-shaped groove 26, the inner walls of the loop-shaped ring 25 and the loop-shaped groove 26 are movably contacted, by arranging the loop-shaped ring 25 and the loop-shaped groove 26, when the box cover 22 is pressed downward, the loop-shaped ring 25 enters the loop-shaped groove 26, thereby realizing the close connection between the box cover 22 and the protection box 21.

[0027] The lower surface of the box cover 22 is fixedly provided with four evenly distributed fixing shafts 27, one end of the fixing shaft 27 is fixedly provided with a plug-in rod 28, the outer wall of the plug-in rod 28 is fixedly provided with a plurality of elastic sheets 281 arranged in a ring array, the bottom wall of the loop-shaped groove 26 is provided with four evenly distributed plug-in grooves 29, one end of the plug-in rod 28 and the bottom wall of the plug-in groove 29 are movably contacted, one end of the elastic sheet 281 and the peripheral wall of the plug-in groove 29 are movably contacted, by arranging the fixing shaft 27, the plug-in rod 28, the elastic sheet 281 and the plug-in groove 29, when the loop-shaped ring 25 enters the inside of the loop-shaped groove 26, the plug-in rod 28 and the elastic sheet 281 gradually plug into the plug-in groove 29, the elastic sheet 281 gradually shrinks, by the contractility of the elastic sheet 281, the box cover 22 is fixed on the upper end face of the protection box 21, when the box cover 22 is pulled upward, the plug-in rod 28 and the elastic sheet 281 are separated from the plug-in groove 29, thereby conveniently realizing the disassembly of the box cover 22.

[0028] The opening assembly 3 comprises two cover plates 31, and opening grooves 32 are formed on the two sides of the protective box 21, the cover plate 31 and the opening groove 32 are horizontally corresponding, by arranging the opening groove 32 and the cover plate 31, the cover plate 31 can block the opening groove 32 when not in use, when in use, the port wiring operation of the monitoring substation box 1 can be carried out through the opening groove 32 after the cover plate 31 is removed, and the opposite sides of the two cover plates 31 are fixedly provided with back type rubber rings 33, the two sides of the protective box 21 are provided with sealing grooves 34, the back type rubber ring 33 and the sealing groove 34 are in interference fit, by arranging the back type rubber ring 33 and the sealing groove 34, the cover plate 31 can be fixed on one side of the protective box 21 through the force of interference fit after the back type rubber ring 33 enters the inside of the sealing groove 34, and the two ends of the two cover plates 31 are fixedly provided with ear plates 35, by arranging the ear plate 35, the cover plate 31 can be removed by the operating personnel pulling the cover plate 31.

[0029] Working principle: when the monitoring substation box 1 needs to be fixed in the roadway of the coal mine underground, the operating personnel first place the monitoring substation box 1 in the protective box 21, the shell of the monitoring substation box 1 contacts the inner wall of the elastic pad 24, then the box cover 22 is vertically placed above the protective box 21, and the back type ring 25 vertically corresponds to the back type groove 26, the box cover 22 is pressed downward, the back type ring 25 vertically enters the back type groove 26, at the same time, the four plug-in rods 28 and the plurality of elastic sheets 281 gradually insert into the corresponding plug-in grooves 29, the plurality of elastic sheets 281 gradually contract, the box cover 22 is fixed on the upper end face of the protective box 21 through the contractility of the plurality of elastic sheets 281, then the protective box 21 is fixed on the wall of the roadway through the mounting hole 212 and the mounting bolt, the protective box 21 and the reinforcing plate 23 resist the impact force from the outside, the elastic pad 24 has a certain elasticity, effectively protects the monitoring substation box 1 in the protective box 21, avoids the monitoring substation box 1 from being damaged, thereby improving the service life of the monitoring substation box 1;

[0030] Subsequently, the operating personnel pull the two adjacent ear plates 35 respectively, so that the two cover plates 31 are separated from one side of the protective box 21, so that the two opening grooves 32 are in an open state, and the port wiring operation of the monitoring substation box 1 can be carried out through the two opening grooves 32 for the operating personnel to operate.

[0031] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and the equivalent technologies thereof, the present application also intends to include these modifications and variations.

Claims

1. A coal mine underground gas monitoring device, comprising a ground central station, a monitoring substation and a sensing module, characterized in that: The ground central station is connected with the monitoring substation through a network cable and a signal, the monitoring substation is connected with the sensing module through an optical fiber, and the terminal equipment of the monitoring substation comprises a monitoring substation machine box (1), an opening assembly (3) is arranged on the outer portion of the monitoring substation machine box (1). The protective assembly (2) comprises a protective box (21), a box cover (22) is detachably mounted on the upper end face of the protective box (21), a reinforcing plate (23) is fixedly arranged on the inner wall of the protective box (21), an elastic pad (24) is fixedly arranged on the inner wall of the reinforcing plate (23), and the outer shell of the monitoring substation machine box (1) and the inner wall of the elastic pad (24) are in movable contact.

2. The coal mine gas monitoring device of claim 1, wherein, Two fixed ears (211) are fixedly arranged on the two sides of the protective box (21), and a mounting hole (212) is formed in the fixed ear (211).

3. The coal mine gas monitoring device of claim 1, wherein, A back-shaped ring (25) is fixedly arranged on the lower surface of the box cover (22), the back-shaped ring (25) is made of elastic material, a back-shaped groove (26) is formed in the upper end face of the protective box (21), and the inner walls of the back-shaped ring (25) and the back-shaped groove (26) are in movable contact.

4. The coal mine gas monitoring device of claim 3, wherein, Four fixed shafts (27) are fixedly arranged on the lower surface of the box cover (22) in a uniform distribution, one end of the fixed shaft (27) is fixedly provided with a plug-in rod (28), the outer wall of the plug-in rod (28) is fixedly provided with a plurality of elastic sheets (281) arranged in a ring array, four plug-in grooves (29) are formed in the bottom wall of the back-shaped groove (26) in a uniform distribution, one end of the plug-in rod (28) is in movable contact with the bottom wall of the plug-in groove (29), and one end of the elastic sheet (281) is in movable contact with the peripheral wall of the plug-in groove (29).

5. The coal mine gas monitoring device of claim 1, wherein, The opening assembly (3) comprises two cover plates (31), opening grooves (32) are formed in the two sides of the protective box (21), the cover plates (31) and the opening grooves (32) are horizontally corresponding, back-shaped rubber rings (33) are fixedly arranged on the opposite sides of the two cover plates (31), sealing grooves (34) are formed in the two sides of the protective box (21), and the back-shaped rubber rings (33) and the sealing grooves (34) are in interference fit.

6. The coal mine gas monitoring device of claim 5, wherein, Ear plates (35) are fixedly arranged on the two ends of the two cover plates (31).

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