Electric explosion-proof box for coal mine

Abstract

The utility model relates to the technical field of explosion-proof boxes, in particular to a coal mine electrical explosion-proof box which comprises a box body, wiring terminals are fixedly connected to the two sides of the front end and the rear end of the box body in an embedded integrated mode, superconducting quartz tubes are fixedly connected to the left side and the right side of the inner wall of the box body at equal intervals, and the box body is formed by cutting an aluminum alloy material with a top opening. Heat dissipation fins are fixedly connected to the surfaces of the left side and the right side of the box body at equal intervals, a box cover is connected to an opening in the top of the box body in a buckled mode, pull rings are rotationally connected to the centers of the front end and the rear end of the box cover, and the centers of the front end and the rear end of the box body are connected with the pull rings in a buckled mode through locking mechanisms. The utility model aims to provide an electric explosion-proof box for a coal mine, so as to solve the problems that the explosion-proof box is inconvenient to open quickly while the sealing performance of the existing electric explosion-proof box for the coal mine is guaranteed, time and labor are wasted, and the explosion-proof box is not convenient for workers to overhaul.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof boxes, in particular to a coal mine electrical explosion-proof box. Background Technique

[0002] The underground working environment is filled with various flammable and explosive gases, and various electrical equipment is required for underground production. To prevent the electrical equipment from contacting the flammable and explosive gases, an explosion-proof box with good sealing performance must be used.

[0003] The existing coal mine electrical explosion-proof boxes are not convenient to quickly open while ensuring the sealing performance, which is time-consuming and laborious, and is not conducive to the maintenance of the explosion-proof boxes by the staff. Content of the Utility Model

[0004] The purpose of the utility model is to provide a coal mine electrical explosion-proof box to solve the problem that the existing coal mine electrical explosion-proof boxes are not convenient to quickly open while ensuring the sealing performance, which is time-consuming and laborious, and is not conducive to the maintenance of the explosion-proof boxes by the staff.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A coal mine electrical explosion-proof box includes a box body. On both sides of the front and rear ends of the box body, wiring terminals are integrally and fixedly connected in an embedded manner. On the left and right sides of the inner wall of the box body, superconducting quartz tubes are fixedly connected at equal intervals. The box body is made of aluminum alloy material by cutting the top opening, and heat dissipation fins are fixedly connected at equal intervals on the surfaces of the left and right sides. A box cover is snap-connected to the top opening of the box body. At the centers of the front and rear ends of the box cover, pull rings are rotatably connected. At the centers of the front and rear ends of the box body, they are snap-connected to the pull rings through a locking mechanism;

[0007] The locking mechanism includes a connecting block. On the top of the connecting block, tensile springs are fixedly connected at equal intervals. At the top of the tensile springs, a buckle is fixedly connected. On both sides of the back of the buckle, guide rails are snap-connected and slidably connected. The guide rails and the connecting block are both fixedly connected to the surface of the box body.

[0008] Preferably, connecting bolt columns are fixedly connected at equal intervals to the bottom of the inner wall of the box body. At the centers of the bottoms of the front and rear ends of the box body, mounting seats are fixedly connected.

[0009] Preferably, the wiring terminal is designed as a plug-in nut fixed double-sided terminal row, and sealing rubber rings are sleeved at the inner ends of each plug connector.

[0010] Preferably, the box cover includes a cover plate surface. At the center of the bottom of the cover plate surface, a convex block is fixedly connected. A sealing rubber ring is integrated on the side of the convex block.

[0011] Preferably, a handle is integrally and fixedly connected to the outer side of the bottom of the buckle.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, the internal and external wiring of the coal mine electrical explosion-proof box is carried out through the terminal, which can avoid the wiring holes in the box body, improve the overall sealing effect of the explosion-proof box, prevent the flammable and explosive gases in the coal mine from entering the box body and contacting the internal electronics to cause an explosion, and thus achieve explosion protection.

[0014] 2. In the present utility model, through the transfer pull rings on both sides of the box cover and the clamping fixation through the locking mechanism on the box body, during maintenance, the buckle can be quickly pulled up and the pull rings can be turned outwards, so that the pull rings on both sides of the box cover are separated from the locking mechanism, and then the box cover can be removed from the box body by holding the pull rings on both sides. It is simple and easy to operate, which is beneficial for the staff to quickly maintain the explosion-proof box.

[0015] 3. In the present utility model, the box body is designed by cutting the top opening of the aluminum alloy material, and the heat dissipation fins are evenly fixed on both sides at equal intervals. The superconducting quartz tubes are evenly fixed on both sides of the inner wall of the box body at equal intervals. When the internal electronic devices in the coal mine electrical explosion-proof box generate heat, the superconducting quartz tubes can quickly absorb the heat and conduct it to the box body, and then use the characteristics of the box body structure material and the heat dissipation fins to quickly dissipate the heat to the external environment, thereby ensuring the heat dissipation capacity of the explosion-proof box, preventing the components in the box from being damaged by heat and short-circuited, reducing the probability of fire, and indirectly improving the explosion-proof performance of the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structure schematic diagram of a coal mine electrical explosion-proof box of the present utility model;

[0017] Figure 2 is Figure 1 the enlarged schematic diagram of the structure of area A in

[0018] Figure 3 is the opened state diagram of the box cover of a coal mine electrical explosion-proof box of the present utility model;

[0019] Figure 4 is Figure 3 the enlarged schematic diagram of the structure of area B in

[0020] Figure 5 is the removed state diagram of the box cover of a coal mine electrical explosion-proof box of the present utility model.

[0021] In the figure: 1, box body; 2, terminal; 21, plug connector; 22, sealing rubber ring; 3, superconducting quartz tube; 4, heat dissipation fin; 5, box cover; 51, cover plate surface; 52, convex block; 53, sealing rubber ring; 6, pull ring; 7, locking mechanism; 71, connecting block; 72, anti-tensile spring; 73, buckle; 74, guide rail; 75, handle; 8, connecting bolt column; 9, mounting seat. Specific embodiments

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0023] Please refer to Figures 1-5 , the present invention provides a technical solution:

[0024] A coal mine electrical explosion-proof box, including a box body 1. On both sides of the front and rear ends of the box body 1, wiring terminals 2 are integrally fixed in an embedded manner for internal and external wiring of the coal mine electrical explosion-proof box, which can avoid opening holes for wiring on the box body and ensure the sealing performance of the box body; on both sides of the inner wall of the box body 1, superconducting quartz tubes 3 are equidistantly and fixedly connected for quickly absorbing the heat of the components inside the box and spreading it to the box body; the box body 1 is made of aluminum alloy material by top-opening cutting, and heat dissipation fins 4 are equidistantly and fixedly connected to both side surfaces. Utilizing the high heat-conducting material characteristics of the box body and the heat dissipation fins, the heat transferred by the superconducting quartz tubes can be quickly diffused to the external environment to ensure the heat dissipation capacity of the coal mine electrical explosion-proof box, prevent components from being damaged by heat and short-circuited to cause a fire, and indirectly improve the explosion-proof performance of the box body and enhance its safety in underground use; a box cover 5 is snap-connected to the top opening of the box body 1 for sealing the opening of the box body and ensuring the overall sealing performance of the coal mine electrical explosion-proof box to prevent flammable and explosive gases underground from entering the box body and coming into contact with the components to cause an explosion; at the centers of the front and rear ends of the box cover 5, pull rings 6 are rotatably connected for fixing and limiting the box cover and providing force for quickly disassembling the box cover during maintenance; at the centers of the front and rear ends of the box body 1, the pull rings 6 are snap-connected through a locking mechanism 7 for clamping and limiting the pull rings when the box cover is fixed to ensure the fixing stability of the box cover;

[0025] The locking mechanism 7 includes a connection block 71. On the top of the connection block 71, tensile springs 72 are equidistantly and fixedly connected. On the top of the tensile springs 72, a buckle 73 is fixedly connected. On both sides of the back of the buckle 73, guide rails 74 are snap-connected and slidably connected. The guide rails 74 and the connection block 71 are both fixedly connected to the surface of the box body 1, meeting the design of the pull ring locking structure.

[0026] In this embodiment, please refer to Figure 5 , on the bottom of the inner wall of the box body 1, connection bolt columns 8 are equidistantly and fixedly connected for connecting and fixing the inner connecting frame and facilitating the installation and fixing of internal components; at the centers of the bottoms of the front and rear ends of the box body 1, mounting seats 9 are fixedly connected for the overall installation and fixing of the coal mine electrical explosion-proof box.

[0027] In this embodiment, please refer to the figure. The terminal block 2 is designed as a plug-in nut fixed double-sided terminal block, which realizes the corresponding plugging of the internal and external cables in the explosion-proof box. It is fixed by the threaded connection between the joint nut and the plug connector to prevent falling off. And a sealing rubber ring 22 is sleeved at the inner end of each plug connector 21 for plugging the opening of the nut to prevent flammable and explosive gases from entering.

[0028] In this embodiment, please refer to Figure 3 , the box cover 5 includes a cover plate surface 51. A convex block 52 is fixedly connected to the center of the bottom of the cover plate surface 51, and a sealing rubber ring 53 is integrated on the side of the convex block 52 to ensure the clamping tightness between the box cover and the box body.

[0029] In this embodiment, please refer to Figure 4 , a handle 75 is integrally fixed on the outer side of the bottom of the buckle 73 for applying force when pulling up the buckle during the disassembly of the box cover.

[0030] The working principle of the present utility model: During maintenance, the buckles 73 on both sides of the box body 1 can be pulled up along the guide rails 74 through the handle 75 to separate the buckles 73 from the pull rings 6. Then, the pull rings 6 are turned outwards and pulled up, and thus the box cover 5 can be pulled out and removed through the pull rings 6 on both sides of the box cover 5. It is simple and easy to operate, which is beneficial for the staff to quickly disassemble and overhaul the explosion-proof box.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without more limitations. Elements defined by the statement "including one..." do not exclude the existence of additional identical elements in the process, method, article or device including the said elements.

[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A coal mine electrical explosion-proof box, characterized by: The invention comprises a box body (1), the front and rear ends of the box body (1) are both embedded with integrated fixed connection terminals (2), the left and right sides of the inner wall of the box body (1) are both equidistantly fixedly connected with superconducting quartz tubes (3), the box body (1) is made of aluminum alloy material with a top opening cut, and the left and right side surfaces are both equidistantly fixedly connected with heat dissipation fins (4), the top opening of the box body (1) is snap-connected with a box cover (5), the front and rear ends of the box cover (5) are both rotatably connected with pull rings (6), and the front and rear ends of the box body (1) are snap-connected with the pull ring (6) through a locking mechanism (7); The locking mechanism (7) comprises a connecting block (71), the top of the connecting block (71) is fixedly connected to a tension spring (72) at equal distances, the top of the tension spring (72) is fixedly connected to a buckle (73), both sides of the back of the buckle (73) are connected to guide rails (74) in a buckle-type sliding manner, and the guide rails (74) and the connecting block (71) are fixedly connected to the surface of the box body (1).

2. A coal mine electrical explosion-proof box according to claim 1, characterized in that: The bottom of the inner wall of the box body (1) is fixedly connected with connecting bolts (8) at equal distances, and the center bottoms of the front and rear ends of the box body (1) are fixedly connected with mounting seats (9).

3. The coal mine electrical explosion-proof box according to claim 1, characterized in that: The wiring terminals (2) are designed as a plug-in nut fixed double-sided terminal block, and the inner end of each plug connector (21) is sleeved with a sealing rubber ring (22).

4. The coal mine electrical explosion-proof box according to claim 1, characterized in that: The box cover (5) comprises a cover surface (51), a convex block (52) is fixedly connected to the bottom center of the cover surface (51), and a sealing rubber ring (53) is integrated on the side of the convex block (52).

5. The coal mine electrical explosion-proof box according to claim 1, characterized in that: A handle (75) is integrated and fixed on the outer side of the bottom of the buckle (73).

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