A stepped cable distribution box

Abstract

The utility model discloses a kind of stepped cable distribution box, belong to cable distribution box technical field, including box, the inside fixed connection of box has installation mechanism, the installation mechanism includes fixed bolster and mounting hole and insulating support piece, the fixed bolster is symmetrically fixed and arranged in box.This utility model realizes cable regular guidance by threading hole and guide block, avoid cable messy winding, more through the thread cooperation structure of rotating sleeve, bush and split piece formation adjustable cable clamping function, when split piece is driven to contract inboard with rotating sleeve, can be according to cable specification self-adapting clamping, both ensure that cable does not fall off when being connected or disconnected with conductive busbar, fundamentally solve the safety accident hidden danger caused by cable falling off, different thick, length cable can be adapted by the sliding of bush in threading hole, improve the adaptation ability of equipment to diversification cable, without fastening structure for different cable individually designed.

Description

Technical Field

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

[0002] Cable junction boxes are devices used to split, branch, connect, and switch circuits in cable lines. Based on their electrical configuration, cable junction boxes are divided into two main categories: one type contains no switching equipment, with only accessories for processing and connecting cable ends; it has a relatively simple structure, small size, and single function, and can be called a standard junction box. The other type contains not only the accessories of a standard junction box but also one or more switching devices; its structure is more complex, larger size, more connecting components, more difficult to manufacture, and more expensive, and can be called a high-end junction box.

[0003] Existing cable junction boxes contain a large number of busbars. Due to the limited space after stacking, cable installation and maintenance are very difficult, and it is difficult to meet the relevant electrical clearance requirements. Furthermore, due to the lack of an effective wire harness fastening structure, the wire harness is prone to falling off after being disconnected from the busbar, which can cause safety accidents. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a stepped cable junction box.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A stepped cable junction box includes a box body. An installation mechanism is fixedly connected inside the box body. The installation mechanism includes a fixed bracket, mounting holes, and an insulating support. The fixed bracket is symmetrically fixed inside the box body. An insulating support is installed at the front end of the fixed bracket. Mounting holes are provided inside both the insulating support and the fixed bracket. A wire fixing mechanism is fixedly connected inside the box body. The wire fixing mechanism includes a wire through hole and a guide block. The wire through holes are arranged in a linear array inside the box body. The guide block is fixedly installed on the inner wall of the wire through hole.

[0007] Preferably, the installation mechanism includes a conductive busbar, a busbar fixing component, and a positioning hole. The conductive busbar is fixedly disposed at the front end of the insulating support component, and the busbar fixing component also has an installation hole inside.

[0008] Preferably, the positioning hole is formed inside the busbar fixing component, and the positioning hole is used to connect the cable. The mounting mechanism includes a front cover fixing hole, a front cover plate, and a front cover fixing component. The front cover fixing hole is formed at the front end of the housing.

[0009] Preferably, the front cover fixing member extends rearward through the front cover plate, and the front cover plate is fixedly disposed at the front opening of the box body.

[0010] Preferably, the installation mechanism includes a box door and a closed window, the box door being rotatably disposed within the front cover plate, and the closed window being fixedly disposed within the box door.

[0011] Preferably, the wire fixing mechanism includes a rotating sleeve and a tubular sleeve, the rotating sleeve being rotatably disposed at the bottom end of the housing, and the tubular sleeve being slidably disposed within the wire threading hole.

[0012] Preferably, the wire fixing mechanism includes a split piece, which is fixedly disposed at the bottom end of the sleeve. Both the split piece and the outer wall of the sleeve are threaded, which is used to engage with the inner wall thread of the rotating sleeve. When the split piece is engaged and driven by the sleeve, the split piece retracts inward.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. In this utility model, a layered installation structure is constructed by symmetrically arranged fixed brackets and front-end insulating support components. The conductive busbars are stably installed on the insulating support components through busbar fixing components. This not only avoids the space congestion caused by the stacking of busbars, but also allows staff to more conveniently perform busbar installation, cable connection, and subsequent maintenance operations. Furthermore, the insulating characteristics of the insulating support components separate the conductive busbars from other metal components, effectively meeting electrical clearance requirements and reducing the risk of leakage. At the same time, the front cover plate cooperates with the openable and closable cabinet door, allowing the cabinet door to be opened for maintenance without removing the front cover plate. The closed window also reduces unnecessary door opening operations, further reducing the probability of external dust, rainwater, and other impurities entering the cabinet and protecting the performance of internal components.

[0015] 2. In this utility model, the cable is guided neatly through the through-hole and the guide block, avoiding tangled cables. Furthermore, the threaded structure of the rotating sleeve, the tube sleeve, and the split plate forms an adjustable cable clamping function. When the split plate retracts inward with the rotation of the rotating sleeve, it can adaptively clamp according to the cable specifications, ensuring that the cable will not fall off when connected to or disconnected from the conductive busbar, fundamentally solving the safety hazards caused by cable detachment. At the same time, the tube sleeve can slide within the through-hole to adapt to cables of different thicknesses and lengths, improving the equipment's adaptability to diverse cables. There is no need to design separate fastening structures for different cables, enhancing the practicality of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front view of a stepped cable junction box after disassembly, as proposed in this utility model.

[0017] Figure 2This is a schematic diagram of the combined left side structure of a stepped cable junction box proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the left side of a stepped cable junction box proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the combined structure of the front cover and the door of a stepped cable junction box proposed in this utility model.

[0020] Figure 5 This utility model proposes a stepped cable junction box. Figure 1 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Enclosure; 2. Fixing bracket; 3. Mounting hole; 4. Insulating support; 5. Conductive busbar; 6. Busbar fixing component; 7. Positioning hole; 8. Front cover fixing hole; 9. Front cover plate; 10. Front cover fixing component; 11. Enclosure door; 12. Sealing window; 13. Wiring hole; 14. Guide block; 15. Rotating sleeve; 16. Tube sleeve; 17. Split piece. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example, refer to Figures 1-5 A stepped cable junction box includes a box body 1. An installation mechanism is fixedly connected inside the box body 1. The installation mechanism includes fixed brackets 2, mounting holes 3, and insulating supports 4. The fixed brackets 2 are symmetrically fixed inside the box body 1. Insulating supports 4 are installed at the front ends of the fixed brackets 2. Mounting holes 3 are provided inside both the insulating supports 4 and the fixed brackets 2. A wire fixing mechanism is fixedly connected inside the box body 1. The wire fixing mechanism includes wire through holes 13 and guide blocks 14. The wire through holes 13 are arranged in a linear array inside the box body 1. 4. Fixedly installed on the inner wall of the wire hole 13, the installation mechanism and the wire fixing mechanism are set inside the box 1. The fixing bracket 2 is symmetrically fixed inside the box 1. The insulating support 4 installed at the front end and the fixing bracket 2 are both opened with mounting holes 3, which can stably install the relevant components inside the box. The wire holes 13 of the wire fixing mechanism are opened in a straight array inside the box 1. The guide block 14 on the inner wall can guide the cable, which can facilitate the neat laying of the cable and solve the problem of messy cable. At the same time, the insulating support 4 can also provide insulation protection to ensure safe use.

[0024] Furthermore, the installation mechanism includes a conductive busbar 5, a busbar fixing component 6, and a positioning hole 7. The conductive busbar 5 is fixedly installed at the front end of the insulating support component 4, and the busbar fixing component 6 also has an installation hole 3 inside. The installation mechanism includes a conductive busbar 5, a busbar fixing component 6, and a positioning hole 7. The conductive busbar 5 is fixed at the front end of the insulating support component 4, and the busbar fixing component 6 also has an installation hole 3 inside. The conductive busbar 5 can realize the core functions of cable line tapping and branching. The busbar fixing component 6, together with the installation hole 3, can stably fix the conductive busbar 5 to prevent it from shifting during operation. The insulating support component 4 can isolate the conductive busbar 5 from other components, reduce the risk of leakage, and improve the stability of equipment operation.

[0025] Furthermore, the positioning hole 7 is opened inside the busbar fixing component 6. The positioning hole 7 is used to connect cables. The installation mechanism includes a front cover fixing hole 8, a front cover plate 9, and a front cover fixing component 10. The front cover fixing hole 8 is opened at the front end of the enclosure 1. The positioning hole 7 is opened inside the busbar fixing component 6 and is used to connect cables. This can accurately realize the docking of cables with conductive busbars 5, reduce connection deviations, and ensure the accuracy of line connections. At the same time, the newly added front cover fixing hole 8 in the installation mechanism is opened at the front end of the enclosure 1, providing an installation benchmark for the subsequent installation of the front cover plate 9 and the front cover fixing component 10. This facilitates the construction of the front protection structure of the enclosure 1 and lays the foundation for the protection of internal components.

[0026] Furthermore, the front cover fastener 10 passes through the front cover plate 9 to the rear. The front cover plate 9 is fixedly installed at the front opening of the housing 1. By passing through the front cover plate 9 to the rear, the front cover plate 9 is fixed to the front opening of the housing 1, which allows the front cover plate 9 to tightly cover the front of the housing 1, effectively blocking external dust, rainwater and other impurities from entering the interior of the housing 1, preventing the installation mechanism, cable fixing mechanism and other components from being corroded by the external environment, protecting the performance of internal components and extending the overall service life of the equipment.

[0027] Furthermore, the installation mechanism includes a door 11 and a closed window 12. The door 11 is rotatably mounted inside the front cover plate 9, and the closed window 12 is fixedly mounted inside the door 11. With the door 11 rotatably connected inside the front cover plate 9 in the installation mechanism, the staff can inspect, maintain and operate the internal components of the box 1 by opening the door 11 without disassembling the front cover plate 9, thus improving the convenience of maintenance. The closed window 12 fixed inside the door 11 allows the staff to directly observe the internal condition of the box 1 when the door 11 is closed, reducing unnecessary door opening operations and lowering the probability of external impurities entering the box 1.

[0028] Furthermore, the cable fixing mechanism includes a rotating sleeve 15 and a tubular sleeve 16. The rotating sleeve 15 is rotatably disposed at the bottom end of the housing 1, and the tubular sleeve 16 is slidably disposed within the cable threading hole 13. The addition of the rotating sleeve 15 rotatably connected to the bottom end of the housing 1 and the tubular sleeve 16 slidably disposed within the cable threading hole 13 to the cable fixing mechanism allows the tubular sleeve 16 to slide and adjust within the cable threading hole 13 according to the thickness and length of the cable, thereby improving the adaptability of the cable fixing mechanism to cables of different specifications. The rotation of the rotating sleeve 15 provides structural support for further fixing of the cable, and together with the tubular sleeve 16, it can enhance the initial fixing effect of the cable and prevent the cable from moving arbitrarily.

[0029] Furthermore, the cable fixing mechanism includes a split piece 17, which is fixedly disposed at the bottom end of the sleeve 16. Both the split piece 17 and the outer wall of the sleeve 16 are threaded, which is used to engage with the inner wall thread of the rotating sleeve 15. When the split piece 17 is engaged by the sleeve 16, the split piece 17 retracts inward. The split piece 17, which is fixed at the bottom end of the sleeve 16, is provided in the cable fixing mechanism. Both the split piece 17 and the outer wall of the sleeve 16 are threaded and engage with the inner wall thread of the rotating sleeve 15. When the rotating sleeve 15 is rotated, the thread engagement between the rotating sleeve 15 and the split piece 17 and the sleeve 16 will cause the split piece 17 to retract inward. The retracted split piece 17 can tightly clamp the inserted cable, thereby achieving a firm fixation of the cable and preventing the cable from falling off after being connected or disconnected from the conductive busbar 5, thus preventing safety accidents and greatly improving the safety of equipment use.

[0030] In use, firstly, the fixed bracket 2 is symmetrically fixed inside the housing 1 to provide stable support for the subsequent installation of components. Then, the insulating support 4 is installed at the front end of the fixed bracket 2. The mounting holes 3 inside both the insulating support 4 and the fixed bracket 2 are used to achieve a firm connection between the insulating support 4 and the fixed bracket 2. Then, the conductive busbar 5 is fixedly set at the front end of the insulating support 4. The conductive busbar 5 is then fixed with the assistance of the busbar fixing component 6. The busbar fixing component 6 also has mounting holes 3 inside. After the fastener passes through the mounting holes 3, the busbar fixing component 6 can be connected to the insulating support 4 / fixed bracket 2, thereby stably limiting the conductive busbar 5 and preventing it from shifting during operation. At this time, the positioning hole 7 inside the busbar fixing component 6 can be used to connect cables. The operator inserts one end of the cable into the positioning hole 7, so that the cable and the conductive busbar 5 form an effective connection, thereby realizing the branching and splicing function of the cable line.

[0031] Install a front cover plate 9 at the front opening of the box 1, pass the front cover fixing piece 10 backward through the corresponding hole of the front cover plate 9, and then connect the front cover fixing piece 10 with the front cover fixing hole 8 opened at the front of the box 1 so that the front cover plate 9 tightly covers the front opening of the box 1 and prevents external impurities from entering; then, rotate the box door 11 into the front cover plate 9 so that the box door 11 can be opened and closed around the rotation axis, and fix the sealing window 12 into the box door 11. The sealing window 12 is made of transparent insulating material, which does not affect the internal sealing of the box 1, and allows the staff to observe the status of the internal components without opening the box door 11.

[0032] The operator inserts the cable into the cable-passing holes 13 arranged in a straight array inside the housing 1. The guide blocks 14 fixed on the inner wall of the cable-passing holes 13 guide the cable, preventing it from shifting or tangling during insertion and ensuring a neat cable arrangement. Next, based on the cable thickness and insertion length, the sleeve 16 is pushed to slide within the cable-passing holes 13, adjusting it to a position suitable for the cable. Finally, the rotating sleeve 15 at the bottom of the housing 1 is rotated. Since the inner wall of the rotating sleeve 15, the outer wall of the sleeve 16, and the outer wall of the split piece 17 (fixed at the bottom of the sleeve 16) all have matching threads, the rotating sleeve 15 will engage with the sleeve 16 and the split piece 17 when it rotates. This engagement causes the split piece 17 to contract inward, tightly clamping the cable inserted into the sleeve 16, thus securing the cable and preventing it from shifting or coming off.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A stepped cable junction box, comprising a box body (1), characterized in that, An installation mechanism is fixedly connected inside the housing (1). The installation mechanism includes a fixed bracket (2), mounting holes (3), and an insulating support (4). The fixed bracket (2) is symmetrically fixed inside the housing (1). An insulating support (4) is installed at the front end of the fixed bracket (2). Mounting holes (3) are opened inside both the insulating support (4) and the fixed bracket (2). A wire fixing mechanism is fixedly connected inside the housing (1). The wire fixing mechanism includes a wire hole (13) and a guide block (14). The wire holes (13) are arranged in a straight array inside the housing (1). The guide block (14) is fixedly installed on the inner wall of the wire hole (13).

2. A stepped cable junction box according to claim 1, characterized in that, The installation mechanism includes a conductive busbar (5), a busbar fixing member (6), and a positioning hole (7). The conductive busbar (5) is fixedly installed at the front end of the insulating support member (4), and the busbar fixing member (6) also has an installation hole (3) inside.

3. A stepped cable junction box according to claim 2, characterized in that, The positioning hole (7) is opened in the busbar fixing component (6). The positioning hole (7) is used to connect the cable. The installation mechanism includes a front cover fixing hole (8), a front cover plate (9) and a front cover fixing component (10). The front cover fixing hole (8) is opened at the front end of the housing (1).

4. A stepped cable junction box according to claim 3, characterized in that, The front cover fixing member (10) extends backward through the front cover plate (9), which is fixedly installed at the front opening of the box body (1).

5. A stepped cable junction box according to claim 1, characterized in that, The installation mechanism includes a box door (11) and a closed window (12). The box door (11) is rotatably disposed inside the front cover plate (9), and the closed window (12) is fixedly disposed inside the box door (11).

6. A stepped cable junction box according to claim 1, characterized in that, The wire fixing mechanism includes a rotating sleeve (15) and a tube sleeve (16). The rotating sleeve (15) is rotatably disposed at the bottom end of the housing (1), and the tube sleeve (16) is slidably disposed in the wire hole (13).

7. A stepped cable junction box according to claim 6, characterized in that, The wire fixing mechanism includes a split piece (17), which is fixedly disposed at the bottom end of the sleeve (16). Both the split piece (17) and the outer wall of the sleeve (16) are threaded, which is used to engage with the inner wall thread of the rotating sleeve (15). When the split piece (17) is engaged and driven by the sleeve (16), the split piece (17) retracts inward.

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