A cable junction box

Abstract

This utility model relates to the field of junction box technology, specifically a cable junction box, including a junction box body. A cabinet door is rotatably connected to the opening edge of the junction box body. Several cable conduits are fixedly connected to the middle of both sides of the junction box body, and all the cable conduits are inclined downwards. The advantages of this utility model are: the cable is inserted through a conical rubber sleeve, passing through the inner wall of the cable conduit, through the annular conical ridge, and into the interior of the junction box body. Then, the locking sleeve is tightened, pushing the conical rubber sleeve into the interior of the annular conical ridge. Guided by the conical surface of the ridge, the conical rubber sleeve is pressed and converged towards the center, thus compressing the cable. As the locking sleeve is gradually tightened, the clamping force gradually increases, improving the sealing and waterproofing effect. The downwardly inclined cable conduits allow rainwater to fall downwards, preventing rainwater from flowing into the cable insertion holes and preventing rainwater from entering.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology, and in particular to a cable junction box. Background Technology

[0002] In today's power transmission and distribution systems, cable junction boxes are key equipment, bearing the important responsibility of connecting, distributing, and protecting cable lines. Their performance directly affects the stability and reliability of power supply.

[0003] Currently, cables in cable junction boxes are mostly inserted directly through the cable holes on the outer wall of the box, and the gaps are sealed by sealing rings. However, the sealing rings lack clamping force, resulting in poor sealing effect. Moreover, they lack rainwater barrier design, which can easily lead to rainwater seepage. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a cable adapter box that effectively solves the deficiencies of the prior art.

[0005] To achieve the above objectives, one embodiment of this utility model provides a cable adapter box, including a connecting box body. A cabinet door is rotatably connected to the opening edge of the connecting box body. A plurality of conduits are fixedly connected to the middle of both sides of the connecting box body. All conduits are inclined downwards. An annular conical ridge is fixedly connected to the bottom edge of the inner wall of each conduit. A threaded connection groove is opened at the bottom of the outer wall of each conduit. A locking sleeve is threaded onto the outer wall of the threaded connection groove. A conical rubber sleeve is fixedly connected to the bottom edge of the inner wall of the locking sleeve. The center of the conical rubber sleeve corresponds to the center of the annular conical ridge. The diameter of the opening at the top of the conical rubber sleeve is smaller than the diameter of the inner wall of the annular conical ridge. A nut rotating head is fixedly connected to one side of the outer wall of the locking sleeve.

[0006] Preferably, in any of the above embodiments, the length of the locking sleeve is less than the opening length of the threaded connection groove, the length of the conical rubber sleeve is adapted to the length of the inner wall of the locking sleeve, and the diameter of the bottom of the conical rubber sleeve is greater than the diameter of the inner wall of the annular conical convex ridge.

[0007] The technical effect achieved by adopting the above solution is that the locking sleeve can have sufficient locking adjustment space, so that the conical rubber sleeve can be fully inserted and tightened.

[0008] Preferably, in any of the above embodiments, a plurality of equipment mounting rails are fixedly connected to the inner wall of the connecting box on the side away from the opening, and a sealing door is rotatably connected to the edge of the opening of the connecting box. The size of the sealing door is adapted to the size of the opening of the connecting box, and a lock is fixedly connected to the middle of one side of the sealing door and can be fixed to the connecting box by the lock.

[0009] The technical effects achieved by adopting the above solution are: the equipment mounting rail facilitates the installation of wiring equipment, and the sealing door can seal the opening, thereby improving the protection effect.

[0010] Preferably, as described in any of the above embodiments, the bottom of the connecting box is provided with support legs at all four corners, and the bottom of the connecting box is provided with several ventilation holes.

[0011] The technical effect achieved by adopting the above solution is that airflow can enter the bottom surface of the connecting box, thereby improving the heat dissipation effect.

[0012] Preferably, in any of the above embodiments, the wall thickness of the conical rubber sleeve gradually increases from the side closer to the convex edge of the annular conical surface to the side farther away from the convex edge of the annular conical surface, and the outer conical surface of the conical rubber sleeve corresponds to the conical surface of the convex edge of the annular conical surface.

[0013] The technical effect achieved by the above solution is that by using this solution, the conical rubber sleeve can be pushed into the inner wall of the annular conical convex ridge, which allows the inclined surface to guide the conical rubber sleeve to converge and tighten the cable towards the center. At the same time, the compression strength can be gradually increased as it is pushed in.

[0014] This utility model has the following advantages:

[0015] 1. This cable junction box uses a conical rubber sleeve to insert the cable into the inner wall of the conduit, allowing it to pass through the annular conical protrusion and into the box body. Then, the locking sleeve is tightened, pushing the conical rubber sleeve into the annular conical protrusion. Guided by the conical surface of the annular conical protrusion, the conical rubber sleeve is pressed and converged towards the center, thus compressing the cable. As the locking sleeve is gradually tightened, the clamping force is gradually increased, improving the sealing and waterproofing effect.

[0016] 2. This cable junction box, through several downward-sloping conduits, allows rainwater to fall downwards, preventing rainwater from flowing into the cable entry holes and preventing rainwater from entering. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1-Connecting box body, 2-Conduit, 3-Threaded connection groove, 4-Locking sleeve, 5-Nut rotating head, 6-Equipment mounting rail, 7-Support leg, 8-Sealing door, 9-Conical protrusion, 10-Conical rubber sleeve. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0022] like Figures 1 to 3 As shown, a cable junction box includes a junction box body 1. A cabinet door 8 is rotatably connected to the opening edge of the junction box body 1. Several conduits 2 are fixedly connected to the middle of both sides of the junction box body 1. The conduits 2 are all inclined downwards. An annular conical protrusion 9 is fixedly connected to the bottom edge of the inner wall of the conduits 2. A threaded connection groove 3 is opened at the bottom of the outer wall of the conduits 2. A locking sleeve 4 is threadedly connected to the outer wall of the threaded connection groove 3. A conical rubber sleeve 10 is fixedly connected to the bottom edge of the inner wall of the locking sleeve 4. The position of the center of the conical rubber sleeve 10 corresponds to the position of the center of the annular conical protrusion 9. The diameter of the top opening of the conical rubber sleeve 10 is smaller than the diameter of the inner wall of the annular conical protrusion 9. A nut rotating head 5 is fixedly connected to one side of the outer wall of the locking sleeve 4.

[0023] As an optional technical solution of this utility model, the length of the locking sleeve 4 is less than the opening length of the threaded connection slot 3, the length of the conical rubber sleeve 10 is adapted to the length of the inner wall of the locking sleeve 4, and the diameter of the bottom of the conical rubber sleeve 10 is greater than the diameter of the inner wall of the annular conical protrusion 9, so that the locking sleeve 4 has sufficient locking adjustment space, and the conical rubber sleeve 10 can be fully inserted and tightened.

[0024] As an optional technical solution of this utility model, a number of equipment mounting rails 6 are fixedly connected to the inner wall of the connecting box body 1 on the side away from the opening. A sealing door 8 is rotatably connected to the edge of the opening of the connecting box body 1. The size of the sealing door 8 is adapted to the size of the opening of the connecting box body 1. A lock is fixedly connected to the middle of one side of the sealing door 8 and can be fixed to the connecting box body 1 by the lock. The equipment mounting rails 6 facilitate the installation of wiring equipment. The sealing door 8 can seal the opening and improve the protection effect.

[0025] As an optional technical solution of this utility model, support legs 7 are provided at the four corners of the bottom surface of the connecting box body 1, and several ventilation holes are provided on the bottom surface of the connecting box body 1. With the support of the support legs 7, the bottom surface of the connecting box body 1 is supported, so that airflow can enter through the several ventilation holes on the bottom surface, thereby improving the heat dissipation effect.

[0026] As an optional technical solution of this utility model, the wall thickness of the conical rubber sleeve 10 gradually increases from the side closer to the annular conical protrusion 9 to the side farther away from the annular conical protrusion 9. The outer conical surface of the conical rubber sleeve 10 corresponds to the conical surface of the annular conical protrusion 9, so that the conical rubber sleeve 10 is pushed into the inner wall of the annular conical protrusion 9. This allows the inclined surface to guide the conical rubber sleeve 10 to converge and tighten the cable towards the center. At the same time, the compression strength can be gradually increased as it is pushed in.

[0027] The following steps are required when using this cable adapter box:

[0028] 1) The cable is inserted through the conical rubber sleeve 10 and through the inner wall of the conduit 2, so that it passes through the annular conical protrusion 9 and enters the interior of the connecting box 1.

[0029] 2) Then start tightening the locking sleeve 4, so that the conical rubber sleeve 10 is pushed into the interior of the annular conical protrusion 9, thereby guiding the conical surface of the annular conical protrusion 9 to press and converge the conical rubber sleeve 10 towards the center, thereby pressing the cable.

[0030] 3) Then, by using several downward-sloping conduits 2, the falling rainwater can be directed downwards, preventing rainwater from flowing into the cable through the hole and preventing rainwater from entering.

[0031] In summary, the cable is inserted through the conical rubber sleeve 10 and into the inner wall of the conduit 2, passing through the annular conical protrusion 9 and into the interior of the connecting box 1. Then, the locking sleeve 4 is tightened, pushing the conical rubber sleeve 10 into the interior of the annular conical protrusion 9. Guided by the conical surface of the annular conical protrusion 9, the conical rubber sleeve 10 is pressed and converged towards the center, thereby compressing the cable. As the locking sleeve 4 is gradually tightened, the clamping force is gradually increased, improving the sealing and waterproofing effect. The downwardly inclined conduits 2 allow rainwater to fall downwards, preventing rainwater from flowing into the insertion hole along the cable and preventing rainwater from entering.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cable junction box, characterized in that: The device includes a connecting box body, with a cabinet door rotatably connected to the opening edge of the connecting box body. Several conduits are fixedly connected to the middle of both sides of the connecting box body, and these conduits are all inclined downwards. An annular conical ridge is fixedly connected to the bottom edge of the inner wall of each conduit. A threaded connection groove is opened at the bottom of the outer wall of each conduit. A locking sleeve is threaded onto the outer wall of the threaded connection groove. A conical rubber sleeve is fixedly connected to the bottom edge of the inner wall of the locking sleeve. The center of the conical rubber sleeve corresponds to the center of the annular conical ridge. The diameter of the opening at the top of the conical rubber sleeve is smaller than the diameter of the inner wall of the annular conical ridge. A nut rotating head is fixedly connected to one side of the outer wall of the locking sleeve.

2. The cable adapter box according to claim 1, characterized in that: The length of the locking sleeve is less than the opening length of the threaded connection slot, the length of the conical rubber sleeve is adapted to the length of the inner wall of the locking sleeve, and the diameter of the bottom of the conical rubber sleeve is greater than the diameter of the inner wall of the annular conical convex ridge.

3. The cable junction box according to claim 2, characterized in that: Several equipment mounting rails are fixedly connected to the inner wall of the connecting box on the side away from the opening. A sealing door is rotatably connected to the edge of the opening of the connecting box. The size of the sealing door is adapted to the size of the opening of the connecting box. A lock is fixedly connected to the middle of one side of the sealing door and can be fixed to the connecting box by the lock.

4. The cable junction box according to claim 3, characterized in that: The bottom of the connecting box is provided with support legs at all four corners, and the bottom of the connecting box is provided with several ventilation holes.

5. The cable adapter box according to claim 4, characterized in that: The wall thickness of the conical rubber sleeve gradually increases from the side closer to the convex edge of the annular conical surface to the side farther away from the convex edge of the annular conical surface, and the outer conical surface of the conical rubber sleeve corresponds to the conical surface of the convex edge of the annular conical surface.

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