Anti-falling cable terminal box

Abstract

This utility model discloses an anti-drop-off cable junction box, relating to the field of junction box technology. It includes a junction box body with a cover on top. The front and rear side walls of the junction box body have wire-passing holes. Two fixing clamping mechanisms are arranged inside the junction box body, and several wiring mechanisms are arranged between the two fixing clamping mechanisms. The fixing clamping mechanisms on both sides of the wiring mechanism clamp and fix the cables on both sides, thus preventing the connection mechanism from breaking when the cable is subjected to external tension. This enhances the device's tensile strength, ensuring stability during use. The top of the wire insertion hole in the wiring mechanism makes it convenient to install connecting cables. Furthermore, only one connecting screw is used; the connection between the cable and the elastic conductive sheet is achieved through the rotation of this connecting screw, making operation more convenient.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology, and in particular to an anti-drop-off cable junction box. Background Technology

[0002] Power cables are cables used to transmit and distribute electrical energy. They are commonly used in urban underground power grids, power plant lead-out lines, internal power supply for industrial and mining enterprises, and underwater power transmission lines across rivers and seas. After the cable is laid, in order to make it a continuous line, the sections of the line must be connected as a whole. These connection points are called cable joints, and cable junction boxes are used to lock and fix the incoming and outgoing lines, and play a role in waterproofing, dustproofing, and vibration protection.

[0003] Traditional junction boxes use a simple clamping structure for wiring, which can easily loosen and cause breakage when the cables are pulled during use, posing a safety hazard. In addition, the connection of the wires is usually made using connectors, and each junction box requires multiple connectors. When the cables are connected to the connectors, the cables on both sides need to be fixed with connector nuts, which makes the installation cumbersome and the work inefficient. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-drop-off cable junction box, which solves the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a junction box for preventing cable detachment, comprising a junction box body, a cover provided on the top of the junction box body, wire through holes provided on both the front and rear side walls of the junction box body, two fixing clamping mechanisms provided on the inner side of the junction box body, and a plurality of wiring mechanisms provided between the two fixing clamping mechanisms.

[0006] The fixing clamping mechanism includes a fixing frame, a limiting slide rod, and a clamping screw. The fixing frame is fixed to the lower inner wall of the junction box body. A clamping plate is provided on the inner side of the fixing frame. The upper end of the limiting slide rod is fixedly connected to the upper inner wall of the fixing frame. The lower end of the limiting slide rod passes through the clamping plate and is fixedly connected to the lower inner wall of the fixing frame. The limiting slide rod is slidably connected to the clamping plate. The lower end of the clamping screw passes through the upper side wall of the fixing frame and the clamping plate in sequence and is rotatably connected to the lower inner wall of the fixing frame. The clamping screw is threadedly connected to the clamping plate.

[0007] The wiring mechanism includes a wiring frame, which is fixed to the lower inner wall of the junction box. Two wire insertion holes are symmetrically opened on the front and rear sides of the upper side wall of the wiring frame. An elastic conductive sheet is provided inside the wiring frame. The elastic conductive sheet is U-shaped and its lower end is fixedly connected to the lower inner wall of the wiring frame.

[0008] Preferably, clamping grooves are provided on the lower end of the clamping plate and on the inner wall of the lower side of the fixing frame, and anti-slip grooves are provided on the inner wall of the clamping grooves.

[0009] Preferably, a connecting screw is provided above the wiring frame, and two auxiliary blocks are provided inside the elastic conductive sheet. The two auxiliary blocks are fixedly connected to the front and rear inner walls of the elastic conductive sheet at one end away from each other. The lower ends of the adjacent side walls of the two auxiliary blocks are away from each other. A pressing block is provided inside the two auxiliary blocks. The front and rear ends of the pressing block abut against the adjacent side walls of the front and rear auxiliary blocks, respectively. The left and right ends of the pressing block abut against the left and right inner walls of the wiring frame, respectively. The lower end of the connecting screw passes through the upper side wall of the wiring frame and the pressing block in sequence. The connecting screw is rotatably connected to the upper side wall of the wiring frame, and the connecting screw is threadedly connected to the pressing block.

[0010] Preferably, the auxiliary block, the pressing block, and the wiring frame are all made of insulating material, and the lower end of the connecting screw does not contact the elastic conductive sheet.

[0011] Preferably, both ends of the junction box are fixedly connected to external threaded tubes. The external threaded tubes are coaxially arranged with the wire through hole. A connecting threaded cylinder is provided on the side of the external threaded tube away from the junction box. The end of the external threaded tube away from the junction box extends into the connecting threaded cylinder and is threadedly connected to the connecting threaded cylinder. A through hole is provided on the side wall of the connecting threaded cylinder away from the junction box. The through hole and the wire through hole are coaxially arranged. A sealing ring is provided inside the external threaded tube. One end of the sealing ring abuts against the inner wall of the connecting threaded cylinder away from the junction box, and the other end of the sealing ring abuts against the outer wall of the junction box. A deformation adaptation cavity is provided inside the sealing ring.

[0012] Preferably, the junction box body has snap-fit ​​frames fixedly connected to the outer walls of both sides, and the box cover has snap-fit ​​brackets fixedly connected to both ends. The snap-fit ​​brackets are adapted to the snap-fit ​​frames, and a pressing bracket is provided on the side of the snap-fit ​​bracket away from the box cover.

[0013] Preferably, a rubber pad is provided at the upper end of the junction box body, and a mating groove is provided at the lower end of the box cover, the mating groove being adapted to the upper end of the junction box body.

[0014] Compared with related technologies, the anti-drop cable junction box provided by this utility model has the following beneficial effects:

[0015] 1. This utility model provides an anti-drop cable junction box. In this device, the connection between cables on both sides is realized through a wiring mechanism. At the same time, a fixing clamping mechanism is set on both the front and rear sides of the wiring mechanism. The fixing clamping mechanism on both sides can clamp and fix the cables on both sides, thereby avoiding the problem of the connection mechanism being broken when the cables are subjected to external tension. By enhancing the tensile strength of the device, the stability of the device during use is guaranteed.

[0016] 2. This utility model provides an anti-drop cable junction box. The wiring mechanism is equipped with a U-shaped elastic conductive sheet. In use, the wires on both sides are inserted into the two insertion holes at the top. Then, by rotating the connecting screw, the pressing block is moved upward. The pressing block presses the auxiliary blocks on both sides and the front and rear side walls of the elastic conductive sheet. When the front and rear side walls of the elastic conductive sheet cooperate with the front and rear side walls of the junction box to clamp the wires, the cable connection is achieved. The device is more convenient for installing connecting cables at the top of the insertion hole position, and only one connecting screw is set. The connection between the cable and the elastic conductive sheet is achieved by rotating the connecting screw, making the operation more convenient.

[0017] 3. This utility model provides an anti-drop cable junction box. In use, the cable passes through the through hole and the wire hole in sequence and is clamped by the fixing clamping mechanism. At the same time, the connecting threaded cylinder is rotated. As the connecting threaded cylinder cooperates with the external threaded frame, it squeezes the sealing ring. The sealing ring seals the position between the cable and the external threaded tube, effectively preventing moisture and dust from entering. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a schematic diagram of the structure of the box lid of this utility model;

[0021] Figure 4 This is a schematic diagram showing the internal structure of the junction box of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the fixing and clamping mechanism of this utility model;

[0023] Figure 6 This is a three-dimensional cross-sectional structural diagram of the fixing and clamping mechanism of this utility model.

[0024] Figure 7 For the present utility model Figure 6 Enlarged view at point B in the middle;

[0025] Figure 8 This is a cross-sectional three-dimensional structural diagram of the wiring mechanism of this utility model.

[0026] In the diagram: 1. Junction box body; 2. Box cover; 3. Snap-fit ​​frame; 4. Snap-fit ​​bracket; 5. Pressing bracket; 6. Rubber pad; 7. Mating groove; 8. Wire hole; 9. Fixing clamping mechanism; 10. Wiring mechanism; 11. External threaded tube; 12. Connecting threaded cylinder; 13. Through hole; 14. Sealing ring; 15. Deformation adaptation cavity; 16. Fixing frame; 17. Clamping plate; 18. Clamping groove; 19. Anti-slip groove; 20. Limiting slide bar; 21. Clamping screw; 22. Junction box; 23. Wire insertion hole; 24. Elastic conductive sheet; 25. Auxiliary block; 26. Extrusion block; 27. Connecting screw. Detailed Implementation

[0027] 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.

[0028] Example:

[0029] Please see Figures 1-8 This utility model provides a technical solution: an anti-drop cable junction box, including a junction box body 1, a box cover 2 on the top of the junction box body 1, wire through holes 8 on both the front and rear side walls of the junction box body 1, two fixing clamping mechanisms 9 on the inner side of the junction box body 1, and a plurality of wiring mechanisms 10 between the two fixing clamping mechanisms 9.

[0030] The fixing clamping mechanism 9 includes a fixing frame 16, a limiting slide rod 20, and a clamping screw 21. The fixing frame 16 is fixed to the lower inner wall of the junction box 1. A clamping plate 17 is provided on the inner side of the fixing frame 16. The upper end of the limiting slide rod 20 is fixedly connected to the upper inner wall of the fixing frame 16, and the lower end of the limiting slide rod 20 passes through the clamping plate 17 and is fixedly connected to the lower inner wall of the fixing frame 16. The limiting slide rod 20 is slidably connected to the clamping plate 17. The lower end of the clamping screw 21 passes through the upper side wall of the fixing frame 16 and the clamping plate 17 in sequence. 7. It is rotatably connected to the lower inner wall of the fixed frame 16, and the clamping screw 21 is threadedly connected to the clamping plate 17; the lower end of the clamping plate 17 and the lower inner wall of the fixed frame 16 are both provided with clamping grooves 18, and the inner side wall of the clamping grooves 18 is provided with anti-slip grooves 19. When connecting the cable, by rotating the clamping screw 21, the clamping screw 21 drives the clamping plate 17 to move downward, and the cable is located between the two clamping grooves 18. As the clamping plate 17 moves downward, the upper and lower clamping grooves 18 are used to clamp and fix the cable.

[0031] The wiring mechanism 10 includes a wiring frame 22, which is fixed to the lower inner wall of the junction box 1. Two symmetrical insertion holes 23 are provided on the front and rear sides of the upper side wall of the wiring frame 22. An elastic conductive sheet 24, U-shaped, is provided inside the wiring frame 22, with its lower end fixedly connected to the lower inner wall of the wiring frame 22. A connecting screw 27 is provided above the wiring frame 22. Two auxiliary blocks 25 are provided inside the elastic conductive sheet 24, with one end of each auxiliary block 25 fixedly connected to the front and rear inner walls of the elastic conductive sheet 24. The lower ends of adjacent side walls of the two auxiliary blocks 25 are also far apart. A pressing block 26 is provided inside each auxiliary block 25, with its front and rear ends abutting against the adjacent side walls of the two auxiliary blocks 25. The left and right ends respectively abut against the inner walls of the left and right sides of the wiring frame 22. The lower end of the connecting screw 27 passes through the upper side wall of the wiring frame 22 and the pressing block 26 in sequence. The connecting screw 27 is rotatably connected to the upper side wall of the wiring frame 22, and the connecting screw 27 is threadedly connected to the pressing block 26. The cable connectors to be connected on the front and rear sides are inserted through the front and rear insertion holes 23 and extended to the inner side of the wiring frame 22. The connecting screw 27 is rotated, and the connecting screw 27 drives the pressing block 26 to move upward. The pressing block 26 is used to press the front and rear side walls of the auxiliary blocks 25 on both sides and the elastic conductive sheet 24. When the front and rear side walls of the elastic conductive sheet 24 cooperate with the front and rear side walls of the wiring frame 22 to clamp the wires, the cable connection is achieved. The top of the insertion hole 23 position of this device is more convenient for installing connecting cables.

[0032] The auxiliary block 25, the extrusion block 26 and the wiring frame 22 are all made of insulating material. The lower end of the connecting screw 27 does not contact the elastic conductive sheet 24. The cables connected on the front and rear sides are electrically connected through the elastic conductive sheet 24, which is made of metallic conductive material.

[0033] Both ends of the junction box body 1 are fixedly connected to external threaded tubes 11. The external threaded tubes 11 are coaxially arranged with the wire through hole 8. A connecting threaded cylinder 12 is provided on the side of the external threaded tube 11 away from the junction box body 1. The end of the external threaded tube 11 away from the junction box body 1 extends into the connecting threaded cylinder 12 and is threadedly connected to the connecting threaded cylinder 12. A through hole 13 is opened on the side wall of the connecting threaded cylinder 12 away from the junction box body 1. The through hole 13 is coaxially arranged with the wire through hole 8. A sealing ring 1 is provided inside the external threaded tube 11. 4. One end of the sealing ring 14 abuts against the inner wall of the connecting threaded cylinder 12 away from the junction box body 1, and the other end of the sealing ring 14 abuts against the outer wall of the junction box body 1. A deformation adaptation cavity 15 is provided on the inner side of the sealing ring 14. After the cable is clamped and fixed by the fixing clamping mechanism 9, the connecting threaded cylinder 12 is rotated. As the connecting threaded cylinder 12 cooperates with the external threaded frame, it squeezes the sealing ring 14, thereby sealing the position between the cable and the external threaded tube 11, effectively preventing moisture and dust from entering.

[0034] The junction box body 1 is fixedly connected to the outer walls of both sides with snap-fit ​​frames 3, and the cover 2 is fixedly connected to the left and right ends with snap-fit ​​brackets 4. The snap-fit ​​brackets 4 are adapted to the snap-fit ​​frames 3. A pressing bracket 5 is provided on the side of the snap-fit ​​bracket 4 away from the cover 2. When the junction box body 1 and the cover 2 are assembled, the lower end of the snap-fit ​​bracket 4 extends into the snap-fit ​​frame 3, and the snap-fit ​​bracket 4 and the snap-fit ​​frame 3 are snapped together. When disassembly is required, the pressing brackets 5 are pressed on both sides at the same time. When the snap-fit ​​bracket 4 has completely moved to the inside of the snap-fit ​​frame 3, the cover 2 can be pulled upward to separate the snap-fit ​​frame 3 and the snap-fit ​​bracket 4.

[0035] A rubber pad 6 is provided at the upper end of the junction box body 1, and a mating groove 7 is provided at the lower end of the box cover 2. The mating groove 7 is adapted to the upper end of the junction box body 1. The cooperation between the rubber pad 6 and the mating groove 7 greatly enhances the sealing performance of the box body.

[0036] Working principle: In use, the adjacent ends of the cables to be connected are sequentially passed through the through hole 13, the external threaded tube 11, the through hole 13, and the fixing clamping mechanism 9. By rotating the clamping screw 21, the clamping screw 21 drives the clamping plate 17 to move downward. The cable is located between the two clamping grooves 18. As the clamping plate 17 moves downward, the upper and lower clamping grooves 18 clamp and fix the cable, while the anti-slip groove 19 prevents the cable from slipping. After the cable is clamped and fixed by the fixing clamping mechanism 9, the connecting threaded cylinder 12 is rotated. As the connecting threaded cylinder 12 cooperates with the external threaded frame, it compresses the sealing ring 14, thereby sealing the position between the cable and the external threaded tube 11, effectively preventing moisture and dust from entering. At the same time, the cover 2 and Rubber gaskets 6 are provided between the junction box bodies 1 to further enhance the sealing performance of the box. The cable connectors to be connected on the front and rear sides are inserted through the two front and rear insertion holes 23 and extended to the inside of the junction box frame 22. The connecting screw 27 is rotated, which drives the pressing block 26 to move upward. The pressing block 26 presses the front and rear side walls of the auxiliary blocks 25 and the elastic conductive sheet 24 on both sides. When the front and rear side walls of the elastic conductive sheet 24 cooperate with the front and rear side walls of the junction box frame 22 to clamp the wires, the cable connection is achieved. The device is more convenient to install the connecting cable at the top of the insertion hole 23 position, and only one connecting screw 27 is set. The connection between the cable and the elastic conductive sheet 24 is achieved by rotating the connecting screw 27, which makes the operation more convenient.

[0037] 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. An anti-drop cable terminal box comprising a terminal box body (1), characterized in that: The junction box body (1) is provided with a cover (2) on the top. The front and rear side walls of the junction box body (1) are provided with wire holes (8). The inner side of the junction box body (1) is provided with two fixing clamping mechanisms (9). A number of wiring mechanisms (10) are provided between the two fixing clamping mechanisms (9). The fixed clamping mechanism (9) includes a fixed frame (16), a limiting slide rod (20), and a clamping screw rod (21). The fixed frame (16) is fixed on the lower inner wall of the junction box body (1). A clamping plate (17) is provided on the inner side of the fixed frame (16). The upper end of the limiting slide rod (20) is fixedly connected to the upper inner wall of the fixed frame (16). The lower end of the limiting slide rod (20) passes through the clamping plate (17) and is fixedly connected to the lower inner wall of the fixed frame (16). The limiting slide rod (20) is slidably connected to the clamping plate (17). The lower end of the clamping screw rod (21) passes through the upper wall of the fixed frame (16) and the clamping plate (17) in sequence and is rotatably connected to the lower inner wall of the fixed frame (16). The clamping screw rod (21) is threadedly connected to the clamping plate (17). The wiring mechanism (10) includes a wiring frame (22), which is fixed on the lower inner wall of the junction box body (1). Two wire insertion holes (23) are symmetrically opened on the front and rear sides of the upper side wall of the wiring frame (22). An elastic conductive sheet (24) is provided on the inner side of the wiring frame (22). The elastic conductive sheet (24) is U-shaped, and the lower end of the elastic conductive sheet (24) is fixedly connected to the lower inner wall of the wiring frame (22).

2. A fall-prevention cable terminal box according to claim 1, characterized in that: The clamping plate (17) and the inner wall of the lower side of the fixing frame (16) are both provided with clamping grooves (18), and the inner wall of the clamping groove (18) is provided with anti-slip grooves (19).

3. A fall-prevention cable terminal box according to claim 1, characterized in that: A connecting screw (27) is provided above the wiring frame (22). Two auxiliary blocks (25) are provided inside the elastic conductive sheet (24). The two auxiliary blocks (25) are fixedly connected to the inner walls of the front and rear sides of the elastic conductive sheet (24) at one end away from each other. The lower ends of the adjacent side walls of the two auxiliary blocks (25) are far apart from each other. A pressing block (26) is provided inside the two auxiliary blocks (25). The front and rear ends of the pressing block (26) abut against the adjacent side walls of the front and rear auxiliary blocks (25) respectively. The left and right ends of the pressing block (26) abut against the inner walls of the left and right sides of the wiring frame (22) respectively. The lower end of the connecting screw (27) passes through the upper side wall of the wiring frame (22) and the pressing block (26) in sequence. The connecting screw (27) is rotatably connected to the upper side wall of the wiring frame (22). The connecting screw (27) is threadedly connected to the pressing block (26).

4. A fall-prevention cable terminal box according to claim 3, characterized in that: The auxiliary block (25), the pressing block (26) and the wiring frame (22) are all made of insulating material, and the lower end of the connecting screw (27) does not contact the elastic conductive sheet (24).

5. The anti-drop cable terminal box according to claim 1, characterized in that: Both ends of the junction box body (1) are fixedly connected with external threaded tubes (11). The external threaded tubes (11) are coaxially arranged with the wire hole (8). A connecting threaded cylinder (12) is provided on the side of the external threaded tube (11) away from the junction box body (1). The end of the external threaded tube (11) away from the junction box body (1) extends into the connecting threaded cylinder (12) and is threadedly connected to the connecting threaded cylinder (12). A through hole (13) is provided on the side wall of the connecting threaded cylinder (12) away from the junction box body (1). The through hole (13) and the wire hole (8) are coaxially arranged. A sealing ring (14) is provided inside the external threaded tube (11). One end of the sealing ring (14) abuts against the inner wall of the connecting threaded cylinder (12) away from the junction box body (1). The other end of the sealing ring (14) abuts against the outer wall of the junction box body (1). A deformation adaptation cavity (15) is provided inside the sealing ring (14).

6. The anti-drop cable terminal box according to claim 1, characterized in that: The junction box body (1) is fixedly connected to the outer walls on both sides with snap-fit ​​frames (3), and the box cover (2) is fixedly connected to the left and right ends with snap-fit ​​brackets (4). The snap-fit ​​brackets (4) are adapted to the snap-fit ​​frames (3), and a pressing bracket (5) is provided on the side of the snap-fit ​​brackets (4) away from the box cover (2).

7. The anti-drop cable terminal box according to claim 1, characterized in that: The upper end of the junction box body (1) is provided with a rubber pad (6), and the lower end of the box cover (2) is provided with a mating groove (7), which is adapted to the upper end of the junction box body (1).

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