Mining explosion-proof hot air unit wiring cavity

Abstract

The utility model discloses a mining explosion-proof hot air unit wiring cavity, which relates to the technical field of hot air unit production, and is characterized in that the inner wall of a shell is symmetrically connected with four groups of bakelite plate brackets, the tops of the four groups of bakelite plate brackets are detachably connected with four groups of bakelite plates, and the tops of the four groups of bakelite plates are detachably connected with sixteen groups of second copper bars; the beneficial effects are that main loop outgoing cables used for connecting the first binding posts and the second binding posts are the same in length, and manual trimming is not needed, so that the problems that the lengths of the main loop outgoing cables are different, the outgoing cables need to be trimmed manually, and the trimming efficiency is high are solved. And after the length of the outgoing cable is trimmed, the outgoing cable can be connected to the binding post only by manually pressing the binding post, so that the manual workload is increased, and the working efficiency is relatively low.

Description

Technical Field

[0001] The utility model relates to the technical field of hot air unit production, and more specifically to a wiring cavity of a mine explosion-proof hot air unit. Background Art

[0002] The explosion-proof hot air unit for mining is a heating device specially designed for the mining environment. It can provide stable heat inside the mine with explosion hazard. The equipment adopts explosion-proof design to ensure safe operation in the presence of flammable and explosive gases, avoid fire or explosion accidents, and ensure the life safety of miners and safe production of mines.

[0003] Existing manufacturers of wiring chambers for explosion-proof hot air units for mines generally connect each group of heating tube loops with copper bars or cables first, then connect them to a loop fixed point (each loop is divided into three places), and then use outgoing cables to connect the three phases A, B, and C (A, B, and C usually represent the three phase lines in a three-phase power system) to their respective primary electrical circuits. However, since each loop has to be wired at three places, the wiring places are arranged in a straight line on both sides of the wiring chamber, resulting in a relatively large distance between them. The lengths of the outgoing cables of the main loop are different, and the outgoing cables need to be trimmed manually. After trimming the length of the outgoing cables, the wiring terminals need to be manually pressed on to connect the outgoing cables to the terminal posts, which increases the workload of manual labor and has low work efficiency.

[0004] Therefore, in order to solve the above technical problems, the present application proposes a wiring chamber for an explosion-proof hot air unit for mining. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a wiring chamber for an explosion-proof hot air unit for mining.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the wiring chamber of the explosion-proof hot air unit for mining includes a shell and bolts which are hollow inside and open on one side;

[0007] The inner wall of the shell is symmetrically connected to four groups of bakelite brackets, the tops of the four groups of bakelite brackets are detachably connected to four groups of bakelite boards, the tops of the four groups of bakelite boards are detachably connected to sixteen groups of second copper bars, and the tops of the sixteen groups of second copper bars are connected to multiple groups of second binding posts, and the main circuit outlet cables used to connect the first binding posts and the second binding posts are the same length, which is beautiful and safe.

[0008] Preferably, a plurality of groups of first binding posts are connected to the bottom of the inner wall of the shell, and a first copper busbar is star-connected between two groups of first binding posts.

[0009] Preferably, a first through hole is opened at both ends of the bakelite board, a second through hole is opened at the top of the bakelite board bracket, the bolt passes through the first through hole and the second through hole and is threadedly connected to the nut to connect the bakelite board to the bakelite board bracket, and the first through hole and the second through hole are relatively wide, so the position of the bakelite board can be adjusted.

[0010] Preferably, the outer surface of the first copper bus after the star connection is respectively labeled A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1, D2, D3, D4, N1, N2, N3 and N4, and the names of the wiring positions are clear, so that ordinary electricians can understand how to connect the wires at a glance.

[0011] Preferably, the outer surface of the second copper busbar is respectively affixed with labels A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1, D2, D3, D4, N1, N2, N3 and N4, and the wiring position names are clear, so that ordinary electricians can understand how to wire at a glance.

[0012] Preferably, the distance between the second copper bars labeled A1, B1, C1 and D1 is 30 mm, the distance between the second copper bars labeled A2, B2, C2 and D2 is 30 mm, the distance between the second copper bars labeled A3, B3, C3 and D3 is 30 mm, the distance between the second copper bars labeled A4, B4, C4 and D4 is 30 mm, the distance between the second copper bars labeled N1 and A4 is 50 mm, the distance between the second copper bars labeled N2 and A3 is 50 mm, and the phase-to-phase safety distance is larger and therefore safer.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. By setting up a bakelite bracket and a bakelite board, the main circuit outgoing cables used to connect the first terminal and the second terminal can be made to have the same length, without the need for manual trimming, thereby solving the problem of different lengths of the main circuit outgoing cables. Manual trimming of the outgoing cables is required. After trimming the length of the outgoing cables, the terminal must be manually pressed on to connect the outgoing cables to the terminals, which increases the manual workload and has low work efficiency.

[0015] 2. By setting labels, the wiring position can be made clear. After seeing the labels, ordinary electricians can complete the wiring quickly and accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the second through hole in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the first through hole in the utility model;

[0020] 1. Shell; 2. First terminal; 3. First copper bar; 4. Second terminal; 5. Bakelite board; 6. Second copper bar; 7. Bakelite board bracket; 8. First through hole; 9. Second through hole; 10. Bolt. DETAILED DESCRIPTION

[0021] like Figure 1 - Figure 3 As shown, the utility model provides a wiring chamber for a mine explosion-proof hot air unit, comprising a shell 1 which is hollow inside and has an opening on one side, and a bolt 10;

[0022] The inner wall of the housing 1 is symmetrically connected to four groups of bakelite brackets 7, the tops of the four groups of bakelite brackets 7 are detachably connected to four groups of bakelite boards 5, the tops of the four groups of bakelite boards 5 are detachably connected to sixteen groups of second copper bars 6, and the tops of the sixteen groups of second copper bars 6 are all connected to multiple groups of second binding posts 4;

[0023] A plurality of groups of first binding posts 2 are connected to the bottom of the inner wall of the housing 1, and a first copper bus 3 is connected in a star shape between two groups of first binding posts 2;

[0024] Both ends of the bakelite board 5 are penetrated with a first through hole 8, the top of the bakelite board bracket 7 is penetrated with a second through hole 9, and a bolt 10 passes through the first through hole 8 and the second through hole 9 to be threadedly connected with a nut;

[0025] The distance between the second copper bars 6 labeled A1, B1, C1 and D1 is 30 mm, the distance between the second copper bars 6 labeled A2, B2, C2 and D2 is 30 mm, the distance between the second copper bars 6 labeled A3, B3, C3 and D3 is 30 mm, the distance between the second copper bars 6 labeled A4, B4, C4 and D4 is 30 mm, the distance between the second copper bars 6 labeled N1 and A4 is 50 mm, and the distance between the second copper bars 6 labeled N2 and A3 is 50 mm;

[0026] The outer surface of the first copper bar 3 after the star connection is respectively labeled A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1, D2, D3, D4, N1, N2, N3 and N4;

[0027] The outer surfaces of the second copper bar 6 are respectively labeled A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1, D2, D3, D4, N1, N2, N3 and N4;

[0028] Each group of heating tube loops is connected by copper bars to form the required total power. The bakelite board 5 is installed on the bakelite board bracket 7 by passing the bolts 10 through the first through hole 8 and the second through hole 9. On the bakelite board bracket 7, sixteen groups of second copper bars 6 are connected to the bakelite board bracket 7. The surfaces of the first copper bars 3 and the second copper bars 6 are both pasted with non-falling labels. After seeing the labels, ordinary electricians can quickly and accurately complete the wiring. The first connecting column connected to the first copper plate labeled A1 is connected to one end of the outgoing cable, and the other end of the outgoing cable is connected to the first connecting column connected to the first copper plate labeled A1. The second connecting column on the second copper bus 6 with the label A1 is connected to the first connecting column on the first copper plate with the labels A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1, D2, D3, D4, N1, N2, N3 and N4. Similarly, the corresponding second connecting columns are connected to ensure that the length of the main circuit outgoing cables is the same, and there is no need to manually trim the length. It is both beautiful and safe. The outgoing cable connected to the second copper bus 6 requires a 10 square millimeter high-temperature wire.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. Wiring chamber of explosion-proof hot air unit for mine, characterized by: It comprises a shell (1) which is hollow inside and has an opening on one side, and a bolt (10); The inner wall of the shell (1) is symmetrically connected to four groups of bakelite brackets (7); the tops of the four groups of bakelite brackets (7) are detachably connected to four groups of bakelite boards (5); the tops of the four groups of bakelite boards (5) are detachably connected to sixteen groups of second copper bars (6); and the tops of the sixteen groups of second copper bars (6) are all connected to a plurality of groups of second terminal posts (4).

2. The connection chamber of the explosion-proof hot air unit for mining according to claim 1 is characterized in that: The bottom of the inner wall of the housing (1) is connected to a plurality of groups of first connecting posts (2), and a first copper busbar (3) is star-connected between two groups of first connecting posts (2).

3. The connection chamber of the explosion-proof hot air unit for mining according to claim 2 is characterized in that: Both ends of the bakelite board (5) are penetrated with a first through hole (8), the top of the bakelite board bracket (7) is penetrated with a second through hole (9), and the bolt (10) penetrates the first through hole (8) and the second through hole (9) to be threadedly connected with a nut.

4. The connection chamber of the explosion-proof hot air unit for mining according to claim 3 is characterized in that: The outer surface of the first copper busbar (3) after the star connection is respectively labeled with A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1, D2, D3, D4, N1, N2, N3 and N4.

5. The connection chamber of the explosion-proof hot air unit for mining according to claim 4 is characterized in that: The outer surface of the second copper busbar (6) is respectively labeled with labels A1, A2, A3, A4, B1, B2, B3, B4, C1, C2, C3, C4, D1, D2, D3, D4, N1, N2, N3 and N4.

6. The connection chamber of the explosion-proof hot air unit for mining use according to claim 5 is characterized in that: The distance between the second copper bars (6) labeled A1, B1, C1 and D1 is 30 mm, the distance between the second copper bars (6) labeled A2, B2, C2 and D2 is 30 mm, the distance between the second copper bars (6) labeled A3, B3, C3 and D3 is 30 mm, the distance between the second copper bars (6) labeled A4, B4, C4 and D4 is 30 mm, the distance between the second copper bars (6) labeled N1 and A4 is 50 mm, and the distance between the second copper bars (6) labeled N2 and A3 is 50 mm.

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