Explosion-proof cable junction box

Abstract

The utility model discloses an explosion-proof type cable junction box which comprises a junction box body, a cover body is arranged at the top end of the junction box body, a lead column is arranged on the outer side of the junction box body, a wire fixing sheet is arranged on one side of the top of the lead column, and a limiting sleeve is arranged on the edge of the outer side of the lead column. Compression springs are arranged on the inner side walls of the limiting sleeves, and stabilizing pieces are arranged on the inner sides of the compression springs. According to the junction box, the wire fixing assembly is arranged on the outer side of the wire leading column, a cable is led into the junction box body through the wire leading column and penetrates through the limiting sleeve at the same time, meanwhile, the arc-shaped stabilizing piece is pushed to abut against the outer portion of the cable through the elastic force of the compression spring, and therefore the purpose of stabilizing the cable penetrating through the wire leading column is achieved; the situation that the cable sheath and the outer opening of the lead column are rubbed and damaged to affect safe use of the cable is avoided, meanwhile, the compression spring is used for buffering when the cable is bent, and the probability that the cable is excessively broken and damaged when bent is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cable junction boxes, in particular to a flameproof cable junction box. Background Art

[0002] A cable junction box is a device used to connect electrical lines. It can connect multiple wires together or lead out wires. Using a junction box can make the circuit neater, reduce line crisscrossing, and improve circuit reliability. Flameproof cable junction boxes are usually used to connect cable lines in areas with explosion risks in mines.

[0003] As disclosed in the utility model with authorization announcement number CN212571977U, a flameproof low-voltage cable junction box for mining is disclosed, which relates to the technical field of low-voltage cable junction boxes, and comprises a box seat and a box cover threadedly connected to the box seat, the box seat is provided with a wiring groove inside, and three lead devices are arranged on the outer surface of the box seat, and the three lead devices are all connected with the wiring groove, the lead device comprises a guide tube, an inlet tube and a clamping piece, the clamping piece is provided with an extrusion block, and the extrusion block and the clamping piece are relatively fixed by fixing bolts, the box cover is provided with an accommodation groove for placing the fixing bolts and a protective groove connected with the accommodation groove, a protective cover is slidably connected in the protective groove, and a limiting assembly for fixing the protective cover is also fixedly arranged on the box cover. The utility model has the effect of protecting the fixing bolts and reducing the probability of losing the fixing bolts. However, in the application of this technical solution, the cable is directly passed through the lead device into the junction box for connection. During the connection and use process, friction is easily generated between the cable and the external port of the lead device, resulting in damage to the cable sheath. There is a technical problem that the cable passed through the lead device cannot be stably protected. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a flameproof cable junction box, which can solve the problem that the cable is directly passed through the lead device into the junction box for connection. During the connection and use process, friction is easily generated between the cable and the outer port of the lead device, resulting in damage to the cable sheath, and there is a technical problem that the cable passed through the lead device cannot be stably protected.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a flameproof cable junction box, comprising a junction box body, a cover body is arranged at the top of the junction box body, a lead post is arranged on the outside of the junction box body, a wire fixing plate is arranged on one side of the top of the lead post, a limiting sleeve is arranged at the edge of the outer side of the lead post, a compression spring is arranged on the inner side wall of the limiting sleeve, a stabilizing plate is arranged on the inner side of the compression spring, and a connecting component is arranged between the top of the inner side wall of the junction box body and the edge of the bottom end of the cover body.

[0006] As a preferred technical solution of the utility model, the compression springs are arranged at equal intervals on the inner side of the limiting sleeve, and the stabilizing sheet is arc-shaped.

[0007] As a preferred technical solution of the utility model, four groups of lead posts are provided, and the lead posts are arranged at equal intervals on the outside of the junction box body.

[0008] As a preferred technical solution of the utility model, the interior of the lead post is connected to the interior of the junction box body, and the junction box body and the cover are connected by bolts.

[0009] As a preferred technical solution of the utility model, the connection assembly includes a connection plug, which is arranged at the edge of the bottom end of the box body, and a combination slot is arranged at the top of the inner side wall of the junction box body, and a sealing gasket is arranged on the inner side of the combination slot.

[0010] As a preferred technical solution of the utility model, the connecting insert, the combined slot and the sealing gasket are annular, and the connecting insert is inserted into the inner side of the combined slot.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] 1. By arranging a fixed wire assembly on the outside of the lead post, the cable is introduced into the main body of the junction box through the lead post and the cable is passed through the limiting sleeve at the same time. At the same time, the elastic force of the compression spring pushes the arc-shaped stabilizing sheet to fit tightly against the outside of the cable, so as to achieve the purpose of stabilizing the cable that passes through the lead post, avoiding the friction between the outer skin of the cable and the outer mouth of the lead post, which affects the safe use of the cable. At the same time, the compression spring is used for buffering when the cable is bent, reducing the probability of excessive bending and breakage of the cable, and the feasibility is strong;

[0013] 2. A connecting component is provided between the top of the inner side wall of the junction box body and the edge of the bottom end of the cover body. When the cover body is connected to the junction box body in use, the connecting plug is inserted into the inside of the combined slot, and the plug-in position is sealed by a sealing gasket, so that the connection between the cover body and the junction box body is more stable and tight, thereby effectively improving the sealing effect and explosion-proof performance of the cable junction box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0016] Figure 3It is a schematic diagram of a partial cross-sectional structure of the utility model in a side view;

[0017] Figure 4 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0018] Among them: 1. Junction box body; 2. Cover body; 3. Lead post; 4. Limiting sleeve; 5. Wire fixing plate; 6. Connecting plug; 7. Sealing gasket; 8. Combination slot; 9. Stabilizing plate; 10. Compression spring. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0020] Example

[0021] Please refer to Figure 1-4 As shown, the utility model provides a flameproof cable junction box, including a junction box body 1, a cover body 2 is arranged at the top of the junction box body 1, the junction box body 1 and the cover body 2 are connected by bolts, a lead post 3 is arranged on the outside of the junction box body 1, four groups of the lead posts 3 are arranged, the lead posts 3 are arranged at equal intervals on the outside of the junction box body 1, and the inside of the lead posts 3 is connected to the inside of the junction box body 1. When installing the cable junction box, the cable is introduced into the inside of the junction box body 1 through the lead post 3 for wiring connection, and a fixed wire piece 5 is arranged on one side of the top of the lead post 3, and the cable passing through the lead post 3 is fastened by the fixed wire piece 5;

[0022] As a further implementation of this embodiment, Figure 1-4 As shown, a limiting sleeve 4 is provided at the edge of the outer side of the lead post 3, and a compression spring 10 is provided on the inner side wall of the limiting sleeve 4, and the compression springs 10 are arranged at equal intervals on the inner side of the limiting sleeve 4, and an arc-shaped stabilizing sheet 9 is provided on the inner side of the compression spring 10. The elastic force of the compression spring 10 pushes the arc-shaped stabilizing sheet 9 to fit tightly against the outside of the cable, so as to achieve the purpose of stabilizing the cable passing through the lead post 3, thereby avoiding the damage of the cable sheath and the outer mouth of the lead post 3 due to friction, which affects the safe use of the cable. At the same time, the compression spring 10 is used to buffer the cable when it is bent, thereby reducing the probability of excessive bending and breakage of the cable, and the feasibility is strong.

[0023] The cable is introduced into the interior of the junction box body 1 through the lead post 3 and the cable is passed through the limiting sleeve 4. At the same time, the elastic force of the compression spring 10 pushes the arc-shaped stabilizing sheet 9 to fit tightly against the outside of the cable, so as to stabilize the cable passing through the lead post 3 to avoid damage caused by friction between the outer skin of the cable and the outer opening of the lead post 3. At the same time, the compression spring 10 is used to buffer when the cable is bent;

[0024] As a further implementation of this embodiment, Figure 1 and Figure 3 As shown, a connection component is arranged between the top of the inner side wall of the junction box body 1 and the edge of the bottom end of the cover body 2, and the connection component includes an annular connection plug 6, which is arranged at the edge of the bottom end of the cover body 2. The top of the inner side wall of the junction box body 1 is provided with an annular combination slot 8, and the connection plug 6 is inserted into the inner side of the combination slot 8. When the cover body 2 and the junction box body 1 are connected to assemble the junction box, the connection plug 6 is inserted into the inner side of the combination slot 8. An annular sealing gasket 7 is arranged on the inner side of the combination slot 8, and the plug-in position is sealed by the sealing gasket 7, so that the connection between the cover body 2 and the junction box body 1 is more stable and tight, thereby effectively improving the sealing effect and explosion-proof performance of the cable junction box;

[0025] When the cover 2 is connected to the junction box body 1 during use, the connecting plug 6 is inserted into the interior of the combined slot 8, and the plug-in portion is sealed by the sealing gasket 7, so that the connection between the cover 2 and the junction box body 1 is more stable and tight, thereby effectively improving the sealing effect and explosion-proof performance of the cable junction box;

[0026] Specific working principle:

[0027] When using the cable junction box, first introduce the cable into the interior of the junction box body 1 through the lead post 3, and at the same time pass the cable through the limiting sleeve 4. The elastic force of the compression spring 10 pushes the arc-shaped stabilizing sheet 9 to fit tightly against the outside of the cable to stabilize the cable passing through the lead post 3 to avoid damage caused by friction between the cable sheath and the outer end of the lead post 3. At the same time, the compression spring 10 is used to buffer the cable when it is bent. After the cable is connected, the connecting plug 6 at the bottom edge of the cover body 2 is inserted into the interior of the combination slot 8, and the plug-in joint is sealed by the sealing gasket 7, so that the connection between the cover body 2 and the junction box body 1 is more stable and tight. Then, the cover body 2 is fixedly installed on the junction box body 1 by bolts, and then the cable passing through the lead post 3 is tightened by the fixing sheet 5 to complete the cable wiring operation.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A flameproof cable junction box, comprising a junction box body (1), characterized in that: A cover body (2) is arranged at the top of the junction box body (1), a lead post (3) is arranged on the outside of the junction box body (1), a wire fixing plate (5) is arranged on one side of the top of the lead post (3), a limiting sleeve (4) is arranged at the edge of the outside of the lead post (3), a compression spring (10) is arranged on the inner side wall of the limiting sleeve (4), a stabilizing plate (9) is arranged on the inner side of the compression spring (10), and a connecting component is arranged between the top of the inner side wall of the junction box body (1) and the edge of the bottom end of the cover body (2).

2. The flameproof cable junction box according to claim 1, characterized in that: The compression springs (10) are arranged at equal intervals on the inner side of the limiting sleeve (4), and the stabilizing sheet (9) is arc-shaped.

3. The flameproof cable junction box according to claim 1, characterized in that: Four groups of lead posts (3) are provided, and the lead posts (3) are arranged at equal intervals on the outside of the junction box body (1).

4. The flameproof cable junction box according to claim 1, characterized in that: The interior of the lead post (3) is connected to the interior of the junction box body (1), and the junction box body (1) and the cover body (2) are connected by bolts.

5. The flameproof cable junction box according to claim 1, characterized in that: The connection assembly comprises a connection plug (6), wherein the connection plug (6) is arranged at the edge of the bottom end of the cover body (2), a combination slot (8) is arranged at the top end of the inner side wall of the junction box body (1), and a sealing gasket (7) is arranged on the inner side of the combination slot (8).

6. The flameproof cable junction box according to claim 5, characterized in that: The connecting insert (6), the combined slot (8) and the sealing gasket (7) are annular in shape, and the connecting insert (6) is inserted into the inner side of the combined slot (8).

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