Novel cable junction box

Abstract

The utility model discloses a novel cable junction box which comprises a wire inlet pipe, a blocking plate and a torsion spring. According to the novel cable junction box, a junction assembly is arranged in the junction box, wire inlet pipes are arranged at the top and the bottom of the junction box, blocking plates are symmetrically arranged on the inner wall of the junction box corresponding to the ends of the wire inlet pipes, the blocking plates are matched with the wire inlet pipes, the blocking plates are rotationally connected to the inner wall of the junction box through pin shafts, and torsional springs matched with the pin shafts are arranged on the outer sides of the pin shafts in a sleeving mode. One end of the torsion spring is fixedly connected with the blocking plate, the other end of the torsion spring is fixedly connected with the inner wall of the junction box, the blocking plate is driven by the torsion spring to block the wire inlet pipe, the threaded connection seat, the elastic clamping jaw and the tightening cover are matched so that the sealing rubber ring can be extruded through tightening of the tightening cover, and therefore sealing of a penetrating cable is achieved. Therefore, dust is effectively prevented from entering the junction box through the threading pipe, the junction box is prevented from being communicated with the outside, and a good isolation effect is achieved.

Description

Technical Field

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

[0002] A junction box is an interface device that transfers construction lines, marks branch lines, and facilitates wiring and line checking. In some cases, for the convenience of construction and debugging, some relatively special products with regular installation settings, such as short-circuit isolators, can be installed in the junction box.

[0003] As follows Figure 5 For the existing cable junction box shown below, when there is no cable passing through the inlet pipe or the outlet pipe, the dust outside will enter the box through the threading hole in the connecting pipe. Therefore, a new type of cable junction box is proposed to optimize the existing technology. Content of the Utility Model

[0004] The purpose of the utility model is to provide a new type of cable junction box to solve the problems raised in the above background art.

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

[0006] A new type of cable junction box includes a junction box. The interior of the junction box is provided with a wiring component. Inlet pipes are provided at both the top and bottom of the junction box. End plates are symmetrically provided on the inner wall of the junction box for the ends of the inlet pipes. The end plates are adapted to the inlet pipes and are rotatably connected to the inner wall of the junction box through pins. A torsion spring adapted to the pin is sleeved outside the pin. One end of the torsion spring is fixedly connected to the end plate, and the other end of the torsion spring is fixedly connected to the inner wall of the junction box. A threaded sleeve is threadedly connected to the outside of the inlet pipe. An external thread is provided on the outside of the inlet pipe. A top pipe adapted to the inlet pipe is fixedly connected to the end of the threaded sleeve. The top pipe is inserted into the inlet pipe. A threaded connection seat is fixedly connected to the end face of the threaded sleeve. An elastic claw is fixedly connected to the end face of the threaded connection seat. A tightening cover adapted to the elastic claw is buckled outside the elastic claw. The tightening cover is threadedly connected to the threaded connection seat. An internal thread is provided on the inner side of the bottom of the tightening cover. When the tightening cover is tightened, the elastic claw can be squeezed, so that the spring claw contracts inwards. A sealing rubber ring adapted to the elastic claw is provided on the inner side of the elastic claw.

[0007] As a further scheme of the utility model: A box door is provided on the front side of the junction box. One side of the box door is hinged to the junction box, and a door lock is provided on the other side of the box door.

[0008] As a still further scheme of the utility model: Two channel-shaped mounting seats are fixedly connected in parallel on the rear side of the junction box. Hanging grooves are symmetrically provided on the upper channel-shaped mounting seat, and fixing holes are symmetrically opened on the lower channel-shaped mounting seat.

[0009] As a further solution of the utility model: openings are symmetrically arranged on both sides of the junction box, and heat dissipation fins adapted thereto are arranged at the openings. The heat dissipation fins are fixedly installed on the junction box by bolts.

[0010] As a further solution of the utility model: a communication port is opened on the box door, and an installation flange adapted thereto is arranged on the inner side of the box door corresponding to the communication port. A sealing plate adapted thereto is arranged in the communication port, and the sealing plate is fixedly installed on the installation flange by bolts. A wire mesh frame is fixedly connected to the inner side of the installation flange, and a desiccant layer is arranged in the wire mesh frame.

[0011] As a further solution of the utility model: the wiring assembly includes a tinned copper bar and an insulating base. The insulating base is fixedly connected inside the junction box, and the tinned copper bar is fixedly installed on the insulating base. Wiring parts are arranged at both ends of the tinned copper bar. A tinned copper bar is arranged between each pair of corresponding inlet pipes. After the cable is inserted into the junction box, it is connected to the tinned copper bar through a copper nose. The threaded column on the connecting part penetrates through the copper nose and is tightly squeezed and fixed by a nut.

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

[0013] 1. In the utility model, a torsion spring drives a plugging plate to plug the inlet pipe, and through the cooperation of a threaded connection seat, elastic claws and a tightening cover, the sealing rubber ring can be squeezed by tightening the tightening cover, so as to realize the sealing of the passing cable, effectively preventing dust from entering the junction box through the threading pipe, and at the same time avoiding the connection between the junction box and the outside, achieving a good isolation effect.

[0014] 2. In the utility model, the heat inside the junction box is led out through the arrangement of heat dissipation fins, so as to achieve a heat dissipation effect.

[0015] 3. In the utility model, the inside of the junction box is dried through the cooperation of the desiccant layer and the wire mesh frame. At the same time, the wire mesh frame can be opened by cooperating with the sealing plate and the installation flange, so as to facilitate the replacement of the desiccant layer.

[0016] 4. In the utility model, through the arrangement of the threaded sleeve, the top pipe can be driven by the threaded sleeve to insert into the inlet pipe, so as to push open the plugging plate, facilitating the incoming line. Description of the Drawings

[0017] Figure 1 It is a side sectional view of a new type of cable junction box.

[0018] Figure 2 It is an enlarged view of A in a new type of cable junction box.

[0019] Figure 3 It is an internal view of a new type of cable junction box.

[0020] Figure 4 It is a front view of a new type of cable junction box.

[0021] Figure 5 It is a prior art figure.

[0022] In the figure: 1, junction box; 2, inlet pipe; 3, plug plate; 4, torsion spring; 5, threaded sleeve; 6, top pipe; 7, threaded connection seat; 8, elastic claw; 9, tightening cover; 10, sealing rubber ring; 11, box door; 12, door lock; 13, channel-shaped mounting seat; 14, hanging groove; 15, fixing hole; 16, heat dissipation fin; 17, mounting flange; 18, sealing plate; 19, wire mesh frame; 20, desiccant layer; 21, tin-plated copper bar; 22, insulating base; 23, wiring part. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described 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 efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 - 2 , in the embodiments of the present invention, a new type of cable junction box includes a junction box 1. An internal wiring assembly is provided inside the junction box 1. Inlet pipes 2 are provided at both the top and bottom of the junction box 1. Plug plates 3 are symmetrically provided on the inner wall of the junction box 1 at the ends of the inlet pipes 2. The plug plates 3 are adapted to the inlet pipes 2. The plug plates 3 are rotatably connected to the inner wall of the junction box 1 through pins. A torsion spring 4 adapted to the pin is sleeved outside the pin. One end of the torsion spring 4 is fixedly connected to the plug plate 3, and the other end of the torsion spring 4 is fixedly connected to the inner wall of the junction box 1. The torsion spring 4 always maintains the closed state of the plug plate 3. A threaded sleeve 5 is threadedly connected to the outside of the inlet pipe 2. An external thread is provided on the outside of the inlet pipe 2. A top pipe 6 adapted to the inlet pipe 2 is fixedly connected to the end of the threaded sleeve 5. The top pipe 6 is inserted into the inlet pipe 2. A threaded connection seat 7 is fixedly connected to the end face of the threaded sleeve 5. An elastic claw 8 is fixedly connected to the end face of the threaded connection seat 7. A tightening cover 9 adapted to the elastic claw 8 is buckled outside the elastic claw 8. The tightening cover 9 is threadedly connected to the threaded connection seat 7. An internal thread is provided on the inner side of the bottom of the tightening cover 9. When the tightening cover 9 is tightened, the elastic claw 8 can be squeezed, so that the spring claw 8 contracts inward. A sealing rubber ring 10 adapted to the elastic claw 8 is provided inside the elastic claw 8.

[0025] The plugging plate 3 is driven by the torsion spring 4 to plug the inlet pipe 2. Through the cooperation of the threaded connection seat 7, the elastic claw 8 and the tightening cover 9, the sealing rubber ring 10 can be squeezed by tightening the tightening cover 9, so as to realize the sealing of the passing cable, effectively preventing dust from passing through the threading pipe into the junction box 1, and at the same time avoiding the connection between the junction box 1 and the outside, achieving a good isolation effect.

[0026] Through the setting of the threaded sleeve 5, the top pipe 6 can be driven by the threaded sleeve 5 to insert into the inlet pipe 2, so as to push open the plugging plate 3, facilitating the incoming line.

[0027] Please refer to Figure 4 , a box door 11 is provided on the front side of the junction box 1. One side of the box door 11 is hinged to the junction box 1, and a door lock 12 is provided on the other side of the box door 11.

[0028] Please refer to Figure 4 , two channel-shaped mounting seats 13 are fixedly connected in parallel on the rear side of the junction box 1. Hanging grooves 14 are symmetrically provided on the upper channel-shaped mounting seat 13, and fixing holes 15 are symmetrically opened on the lower channel-shaped mounting seat 13.

[0029] Through the setting of the two channel-shaped mounting seats 13 in cooperation with the hanging grooves 14 and the fixing holes 15, the junction box 1 can be conveniently fixed and installed by bolts.

[0030] Please refer to Figure 3 , openings are symmetrically provided on both sides of the junction box 1. Heat dissipation fins 16 are provided at the openings and are fixedly installed on the junction box 1 by bolts.

[0031] Through the setting of the heat dissipation fins 16, the heat inside the junction box 1 is exported, thus achieving a heat dissipation effect.

[0032] Please refer to Figure 1 , a communication port is opened on the box door 11. An installation flange 17 adapted to it is provided on the inner side of the box door 11 corresponding to the communication port. A sealing plate 18 adapted to it is provided in the communication port. The sealing plate 18 is fixedly installed on the installation flange 17 by bolts. A wire mesh frame 19 is fixedly connected to the inner side of the installation flange 17, and a desiccant layer 20 is provided inside the wire mesh frame 19.

[0033] Through the cooperation of the desiccant layer 20 and the wire mesh frame 19, the inside of the junction box 1 is dried. At the same time, the wire mesh frame 19 can be opened in cooperation with the sealing plate 18 and the installation flange 17, facilitating the replacement of the desiccant layer 20.

[0034] Please refer to Figure 3, the wiring assembly includes a tinned copper busbar 21 and an insulating base 22. The insulating base 22 is fixedly connected inside the junction box 1, and the tinned copper busbar 21 is fixedly installed on the insulating base 22. Wiring parts 23 are provided at both ends of the tinned copper busbar 21. A tinned copper busbar 21 is provided between every two corresponding inlet pipes 2. After the cable is inserted into the junction box 1, it is connected to the tinned copper busbar 21 through a copper nose. The threaded post on the connecting part 23 penetrates through the copper nose and is fixed by tightening with a nut.

[0035] The working principle of the present utility model is as follows:

[0036] During use, first, according to the number of cables to be connected, rotate the corresponding number of threaded sleeves 5 so that the top pipe 6 is inserted into the inlet pipe 2 until the top pipe 6 pushes open the plugging plate 3. At this time, insert the cable to be connected through the top pipe 6 into the junction box 1, and connect the end of the cable to the wiring part 23 of the tinned copper busbar 21. Then rotate the tightening cover 9. The tightening cover 9 squeezes the elastic claw 8, causing the sealing rubber ring 10 to be squeezed, so as to seal the cable gap through the sealing rubber ring 10. At this time, close the box door 11 to complete the connection of the cable.

[0037] During the use process, heat dissipation can be carried out through the heat dissipation fins 16, and at the same time, drying can be carried out through the desiccant layer 20 to keep the environment inside the junction box 1 stable.

[0038] The desiccant layer 20 can be replaced by removing the sealing plate 18 to open the wire mesh frame 19.

[0039] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A new type of cable junction box, comprising a junction box (1), characterized in that: The junction box (1) is provided with a junction assembly inside, the top and bottom of the junction box (1) are provided with a wire inlet pipe (2), the inner wall of the junction box (1) is symmetrically provided with a blocking plate (3) at the end of the wire inlet pipe (2), the blocking plate (3) is rotatably connected to the inner wall of the junction box (1) through a pin shaft, the outer side of the pin shaft is sleeved with a torsion spring (4) matched therewith, one end of the torsion spring (4) is fixedly connected to the blocking plate (3), the other end of the torsion spring (4) is fixedly connected to the inner wall of the junction box (1), and the outer side of the wire inlet pipe (2) is threadedly connected with a threaded sleeve (5), the end of the threaded sleeve (5) is fixedly connected with a top pipe (6) matched with the inlet pipe (2), the top pipe (6) is inserted into the inlet pipe (2), the end face of the threaded sleeve (5) is fixedly connected with a threaded connection seat (7), the end face of the threaded connection seat (7) is fixedly connected with an elastic claw (8), the outer side of the elastic claw (8) is buckled with a tightening cover (9) matched with it, the tightening cover (9) is threadedly connected to the threaded connection seat (7), and the inner side of the elastic claw (8) is provided with a sealing rubber ring (10) matched with it.

2. A new type of cable junction box according to claim 1, characterized in that: The front side of the junction box (1) is provided with a box door (11), one side of the box door (11) is hinged to the junction box (1), and the other side of the box door (11) is provided with a door lock (12).

3. A new type of cable junction box according to claim 1, characterized in that: The rear side of the junction box (1) is parallely fixedly connected with two ""-shaped"" mounting seats (13); the upper ""-shaped"" mounting seat (13) is symmetrically provided with hanging grooves (14); and the lower ""-shaped"" mounting seat (13) is symmetrically provided with fixing holes (15).

4. A new type of cable junction box according to claim 1, characterized in that: The junction box (1) is symmetrically provided with openings on both sides, and heat dissipation fins (16) adapted thereto are provided at the openings, and the heat dissipation fins (16) are fixedly mounted to the junction box (1) by bolts.

5. A new type of cable junction box according to claim 2, characterized in that: The box door (11) is provided with a communication opening, and a mounting flange (17) matching the communication opening is provided on the inner side of the box door (11) corresponding to the communication opening, and a sealing plate (18) matching the communication opening is provided in the communication opening, and the sealing plate (18) is fixedly mounted on the mounting flange (17) by bolts, and a screen frame (19) is fixedly connected to the inner side of the mounting flange (17), and a desiccant layer (20) is provided in the screen frame (19).

6. A new type of cable junction box according to claim 1, characterized in that: The wiring assembly comprises a tinned copper busbar (21) and an insulating base (22), wherein the insulating base (22) is fixedly connected to the inside of the wiring box (1), the tinned copper busbar (21) is fixedly mounted on the insulating base (22), and both ends of the tinned copper busbar (21) are provided with wiring portions (23).

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