Quick connect electrical box assembly junction box

Abstract

The utility model relates to the technical field of junction box, specifically relates to a power distribution box assembly type junction box of quick butt joint, aims at solving the problem that the existing junction box splicing gap is big, stability is poor and the low problem of installation efficiency, including junction box body, butt joint subassembly and box cover, the one side of junction box body is open square groove, the other side is equipped with butt joint board, the outer end of butt joint board is equipped with limit board, butt joint board is connected square board through torsional spring, square groove is adapted with butt joint board and square board, and limit board blocks square board to rotate, junction box body is equipped with the mounting column of threaded hole in, has the wiring hole in front and back side, is equipped with the mounting lug of mounting hole in bottom, the box cover is connected the body through hinge and has the ventilating grille, the body and box cover are all corrosion -resistant fire -retardant plastics, the utility model realizes quick close splicing, promotes installation efficiency and stability, has the functions of fire -retardant, corrosion -resistant, heat dissipation, and the adaptability is strong.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology, and in particular to a quick-connecting modular junction box for power distribution boxes. Background Technology

[0002] As a core component for wiring connections within a distribution box, the ease of installation and connection stability of the junction box directly impact the construction efficiency and safety performance of the power distribution system. In existing technologies, most junction boxes are freestanding structures. When it is necessary to expand the line capacity or add wiring ports according to power distribution requirements, multiple junction boxes must be spliced ​​together using bolts, clips, or external connectors.

[0003] Existing junction boxes are spliced ​​together by the interlocking of protrusions and grooves on the side of the box. However, the gap between the protrusions and grooves is relatively large, and the connection is prone to loosening after splicing. The gap will further increase after long-term use. Utility Model Content

[0004] The purpose of this utility model is to provide a quick-connecting modular junction box for distribution boxes, which solves the problem in the prior art where the gap between the protrusions and grooves on the side of the box is large after splicing, and the connection is prone to loosening after splicing.

[0005] To achieve the above objectives, this utility model provides a quick-connecting modular junction box for distribution boxes, comprising a junction box body, a docking plate, and a cover rotatably disposed on the upper side of the junction box body. A square groove is formed on one side of the junction box body. The inner end of the docking plate is fixedly disposed on the side of the junction box body away from the square groove. A limiting plate is provided at the outer end of the docking plate. A square plate is connected to the docking plate by a torsion spring. The limiting plate and the square plate are in close contact with each other, preventing the square plate from rotating in the direction of the limiting plate. The square groove is adapted to both the docking plate and the square plate.

[0006] The horizontal height of the upper side of the square groove is the same as the horizontal height of the upper surface of the docking plate.

[0007] Each of the junction box bodies has a mounting post at the inner corner, and the mounting post has a threaded hole along its length.

[0008] The junction box body has two wiring holes on both the front and rear sides, and a wiring tube is movably installed at the two wiring holes on the front side of the junction box body.

[0009] The junction box body has a fitting ring on its periphery to stabilize the junction box body.

[0010] The junction box body is provided with mounting ears on the bottom of both the front and rear sides, and the mounting ears are provided with mounting holes.

[0011] The cover is rotatably mounted on the upper side of the junction box body via two hinges, and a ventilation grille is provided on the upper side of the cover.

[0012] Both the junction box body and the box cover are made of corrosion-resistant and fire-retardant plastic.

[0013] The advantages of this utility model's quick-connection assembly junction box for power distribution boxes are as follows:

[0014] Through the matching structure of the docking plate, the square plate and the square groove, combined with the locking design of the square plate driven by the torsion spring, the square plate can be tightly attached to the inner side wall of the square groove during splicing, and the limiting plate can be tightly attached to the outer side wall of the other junction box body, effectively eliminating splicing gaps and preventing loosening; at the same time, the elasticity of the torsion spring can keep the square plate locked for a long time, and even in a vibration environment, the splicing point is not easy to separate, improving the overall structural stability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of the quick-connection assembly junction box of this utility model.

[0017] Figure 2 This is a bottom view of the quick-connection assembly junction box of this utility model.

[0018] Figure 3 This is a front view of the quick-connection assembly junction box of this utility model.

[0019] Figure 4 This is the utility model Figure 3 A sectional view along line AA.

[0020] Figure 5 This is the utility model Figure 4 BB line section view.

[0021] Figure 6 This is the utility model Figure 5 Enlarged view of the local structure at point C.

[0022] 1- Junction box body, 2- Box cover, 3- Square groove, 4- Connecting plate, 5- Limiting plate, 6- Square plate, 7- Mounting post, 8- Threaded hole, 9- Wiring hole, 10- Wiring tube, 11- Fitting ring, 12- Hinge, 13- Ventilation grille, 14- Mounting ear, 15- Mounting hole. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0024] Please see Figures 1-6 ,in Figure 1 This is a schematic diagram of the overall structure of the quick-connection assembly junction box of this utility model. Figure 2 This is a bottom view of the quick-connect junction box assembly of this utility model. Figure 3 This is a front view of the quick-connect assembly junction box of this utility model. Figure 4 This is the utility model Figure 3 AA-line sectional view, Figure 5 This is the utility model Figure 4 BB line section view, Figure 6 This is the utility model Figure 5 Enlarged view of the local structure at point C.

[0025] This utility model provides a quick-connecting, modular junction box for distribution boxes, comprising a junction box body 1, a connecting plate 4, and a cover 2 rotatably mounted on the upper side of the junction box body 1. Both the junction box body 1 and the cover 2 are made of corrosion-resistant and fire-retardant plastic. A square groove 3 is formed on one side of the junction box body 1. The inner end of the connecting plate 4 is fixedly disposed on the side of the junction box body 1 away from the square groove 3. A limiting plate 5 is provided at the outer end of the connecting plate 4. A square plate 6 is connected to the connecting plate 4 via a torsion spring. The limiting plate 5 and the square plate 6 are in contact with each other, preventing... The square plate 6 rotates towards the limiting plate 5. The square groove 3 is adapted to the docking plate 4 and the square plate 6. The horizontal height of the upper side of the square groove 3 is the same as the horizontal height of the upper surface of the docking plate 4. Specifically, the wiring hole 9 is a circular through hole for the cable to pass through the box. The mounting ear 14 is a horizontally extending rectangular plate structure and is integrally formed with the junction box body 1. The mounting hole 15 is a circular through hole for fixing the junction box body 1 to the inner wall of the distribution box or the mounting bracket by means of expansion bolts, self-tapping screws, etc.

[0026] The junction box body 1 has mounting posts 7 at its inner corners, each mounting post 7 having a threaded hole 8 along its length. Two wiring holes 9 are located on both the front and rear sides of the junction box body 1. A wiring tube 10 is movably mounted at one of the two wiring holes 9 on the front side of the junction box body 1. Mounting ears 14 are located at the bottom of both the front and rear sides of the junction box body 1, each mounting ear having a mounting hole 15. A fitting ring 11 is located around the periphery of the wiring tube 10 to stabilize it and ensure it fits snugly against the junction box body 1. Specifically, the wiring tube 10 is mainly used to accept the insertion of wires, and the wiring holes 9 provide installation space for the wiring tube 10.

[0027] Secondly, the cover 2 is rotatably mounted on the upper side of the junction box body 1 via two hinges 12, and the upper side of the cover 2 is provided with a ventilation grille 13; specifically, the flipping of the cover 2 makes it convenient for staff to open the interior of the junction box body 1 and install or remove the wiring.

[0028] In this embodiment, when it is necessary to splice two junction box bodies 1, the square plate 6 of one of the junction box bodies 1 is squeezed, and the square plate 6 is pressed against the square groove 3 of the other junction box body 1, aligned with the square groove 3 of the other junction box body 1, and one of the junction box bodies 1 is pushed in the horizontal direction so that the mating plate 4 and the square plate 6 are completely inserted into the square groove 3 of the other junction box body 1.

[0029] Due to the setting of the limiting plate 5, the square plate 6 cannot rotate in the opposite direction. When the two junction box bodies 1 are assembled, the horizontal pulling cannot disengage from the two junction box bodies 1.

[0030] When disassembly is required, slide the two junction box bodies 1 up and down, and the square plate 6 will disengage from the junction box body 1. Then, the square plate 6 and the docking plate 4 can be pulled out from the square groove 3 to complete the disassembly.

[0031] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A quick-connecting, modular junction box, comprising a junction box body (1) and a cover (2) rotatably disposed on the upper side of the junction box body (1), wherein a square groove (3) is provided on one side of the junction box body (1), characterized in that, It also includes a docking plate (4), the inner end of which is fixedly disposed on the side of the junction box body (1) away from the square groove (3), and the outer end of the docking plate (4) is provided with a limiting plate (5). The square plate (6) is connected to the docking plate (4) by a torsion spring. The limiting plate (5) and the square plate (6) fit together to prevent the square plate (6) from rotating in the direction of the limiting plate (5). The square groove (3) is compatible with the docking plate (4) and the square plate (6).

2. The quick-connection modular junction box for distribution boxes as described in claim 1, characterized in that, The horizontal height of the upper side of the square groove (3) is the same as the horizontal height of the upper surface of the docking plate (4).

3. The quick-connection assembly junction box for distribution boxes as described in claim 2, characterized in that, The junction box body (1) is provided with mounting posts (7) at the inner corners, and the mounting posts (7) are provided with threaded holes (8) along the length direction.

4. The quick-connection modular junction box for distribution boxes as described in claim 3, characterized in that, The junction box body (1) has two wiring holes (9) on both the front and rear sides, and a wiring tube (10) is movably installed at the two wiring holes (9) on the front side of the junction box body (1).

5. The quick-connection modular junction box for distribution boxes as described in claim 4, characterized in that, The junction box (10) is provided with a fitting ring (11) on its periphery. The fitting ring (11) is used to stabilize the junction box (10) and fit the junction box body (1).

6. The quick-connection assembly junction box for distribution boxes as described in claim 5, characterized in that, The junction box body (1) is also provided with mounting ears (14) on the bottom of the front and rear sides, and the mounting ears (14) are provided with mounting holes (15).

7. The quick-connection assembly junction box for distribution boxes as described in claim 6, characterized in that, The cover (2) is rotatably mounted on the upper side of the junction box body (1) via two hinges (12), and the upper side of the cover (2) is provided with a ventilation grille (13).

8. The quick-connection modular junction box for distribution boxes as described in claim 7, characterized in that, Both the junction box body (1) and the box cover (2) are made of corrosion-resistant and fire-retardant plastic.

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