Stretch-resistant low-voltage cable wiring device

Abstract

The utility model discloses a tensile low-voltage cable wiring device, which belongs to the technical field of cable wiring and comprises a protection box, two wiring holes are respectively arranged on two sides of the protection box, two fixing frames are arranged in the wiring holes, the number of the fixing frames is four, and the fixing frames are U-shaped and are sleeved on the inner walls of the wiring holes. The directions of every two adjacent fixing frames are opposite. According to the tensile low-voltage cable wiring device, the wiring holes, the fixing frames, the protruding blocks, the bolts and the nuts are arranged, the nuts horizontally move on the outer walls of the bolts in the rotating process by rotating the two nuts on the outer walls of the bolts, and the two bolts are matched with the two nuts to drive the two fixing frames to get close to each other through the protruding blocks to clamp a cable; the part, penetrating through the wiring hole, of the cable is fixed in the wiring hole, the situation that the cable is loosened and deformed due to the influence of external force after wiring is avoided, the stability of cable wiring is improved, and meanwhile potential safety hazards are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of cable wiring technology, specifically a tensile-resistant low-voltage cable wiring device. Background Technology

[0002] In modern power systems, low-voltage cables are widely used in various places, such as power distribution networks in residential communities and commercial buildings. With the continuous growth of electricity demand, the number and density of cables laid are also increasing. Traditional low-voltage cable wiring uses simple connection methods such as screw tightening. When the cable is subjected to tensile forces generated by building settlement, equipment movement or slight stretching, it is easy to loosen and deform. This will increase the contact resistance, cause heat generation, result in power loss, and may cause safety hazards such as fire. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a tensile-resistant low-voltage cable connection device, which solves the problem that traditional low-voltage cable connection uses simple connection methods such as screw tightening, which are prone to loosening and deformation when the cable is affected by external force, thereby increasing contact resistance, causing heat generation, resulting in power loss and potential fire hazards.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tensile-resistant low-voltage cable wiring device, comprising a protective box, two wiring holes on each side of the protective box, two fixing brackets inside the wiring holes, and four fixing brackets in total. The fixing brackets are U-shaped and fitted onto the inner wall of the wiring holes, with adjacent fixing brackets facing each other. Two protrusions are fixedly connected to both ends of one side of each fixing bracket, and a bolt is provided between two adjacent protrusions. The bolt passes through the two adjacent protrusions and is slidably connected to them. Two nuts are threaded onto the outer wall of the bolt, and the two nuts are symmetrically distributed about the center of the bolt on one side of the protrusions. Two stops are fixedly connected to both ends of the bolt, and two base plates are symmetrically fixed about the center of the inner wall of the bottom of the protective box.

[0005] As a further embodiment of this utility model: two connecting shafts are fixedly connected to the top of the base plate, and two cable trays are rotatably connected between the two connecting shafts.

[0006] As a further embodiment of this utility model: a pressure plate is fixedly connected to one side of the cable tie frame, and two limiting rods are fixedly connected to the side of the base plate opposite to the pressure plate. Compression springs are sleeved on the two limiting rods, and the two ends of the compression springs are connected to the pressure plate and the base plate respectively.

[0007] As a further embodiment of this utility model: the protective box is provided with a top cover, and four hooks are fixedly connected to the four corners below the top cover.

[0008] As a further embodiment of this utility model: four slots are respectively provided at the four corners of the upper part of the protective box, and the positions of the four slots correspond to the positions of the four hooks.

[0009] As a further embodiment of this utility model: the cable tie frame is an arc-shaped design, and the directions of two adjacent cable tie frames are opposite.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This tensile-resistant low-voltage cable connection device, by setting connection holes, fixing brackets, protrusions, bolts, and nuts, allows two cables to pass through two connection holes respectively and be placed between two opposing fixing brackets. By rotating the two nuts on the outer wall of the bolt, since the nuts are threadedly connected to the bolt, the nuts move horizontally on the outer wall of the bolt during rotation. The two bolts and two sets of nuts cooperate with the protrusions to drive the two fixing brackets to move closer together and clamp the cable, fixing the part of the cable passing through the connection hole inside the connection hole. The connection part of the cable is located in the center of the protective box. In this way, it is possible to prevent the cable from loosening and deforming due to external forces after connection, thereby improving the stability of the cable connection and reducing safety hazards.

[0012] 2. This tensile-resistant low-voltage cable connection device, by setting a connecting shaft, cable trays, pressure plates, and compression springs, places the cable between two adjacent cable trays after it passes through the connection hole. The two adjacent cable trays are squeezed by the cable and rotate in opposite directions through the connecting shaft, causing the pressure plate on one side to squeeze the compression spring. After being squeezed, the two compression springs contract and rebound, causing the two cable trays to reset and thus clamp the cable. In this way, the position of the cable can be restricted, preventing the cable from shaking in the protective box and improving the stability of the cable connection. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the connection between the base plate and the wire harness of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the protrusion and bolt connection of this utility model;

[0016] Figure 4 This is a structural diagram showing the positional relationship between the hook and the slot of this utility model;

[0017] In the diagram: 1. Protective box; 2. Wiring hole; 3. Fixing bracket; 4. Protrusion; 5. Bolt; 6. Nut; 7. Stop; 8. Base plate; 9. Connecting shaft; 10. Cable tie; 11. Pressure plate; 12. Limiting rod; 13. Compression spring; 14. Top cover; 15. Hook; 16. Slot. Detailed Implementation

[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0019] like Figure 1-4 As shown, this utility model provides a technical solution: a tensile-resistant low-voltage cable connection device, including a protective box 1, a top cover 14 on the top of the protective box 1, four hooks 15 fixedly connected to the four corners below the top cover 14, and four slots 16 opened at the four corners of the top of the protective box 1, the positions of the four slots 16 corresponding to the positions of the four hooks 15. By cooperating with the hooks 15 and the slots 16, the hooks 15 are inserted into the slots 16, and the top cover 14 can be fixed on the top of the protective box 1. It is easy to operate during installation and maintenance, and can effectively prevent external factors from interfering with the cables inside the protective box 1.

[0020] The protective box 1 has two wiring holes 2 on each side, and two fixing brackets 3 are installed inside the wiring holes 2. There are four fixing brackets 3 in total. The fixing brackets 3 are U-shaped and fit into the inner wall of the wiring holes 2. The two adjacent fixing brackets 3 face each other. Because of the fixing brackets 3, a part of the cable can be fixed in the wiring hole 2 by the two adjacent fixing brackets 3, thereby avoiding the cable from being stretched and causing the connection to loosen or fall off. Two protrusions 4 are fixedly connected to each end of one side of the fixing bracket 3. A bolt 5 is installed between two adjacent protrusions 4, and the bolt 5 passes through the two adjacent protrusions 4. Furthermore, it is a sliding connection with the bolt 5. The outer wall of the bolt 5 is threaded with two nuts 6. The two nuts 6 are symmetrically distributed on one side of the protrusion 4 about the center of the bolt 5. Through the cooperation between the bolt 5 and the nuts 6, the corresponding two nuts 6 rotate on the outer wall of the bolt 5. The protrusions 4 at both ends of the fixing frame 3 drive the two fixing frames 3 to move closer to each other to clamp the cable. This method can ensure the stability of the clamping and prevent the cable from sliding between the two fixing frames 3. Two stops 7 are fixedly connected to both ends of the bolt 5. Two base plates 8 are symmetrically fixed to the inner wall of the bottom of the protective box 1 about its center.

[0021] Two connecting shafts 9 are fixedly connected to the top of the base plate 8. Two cable tie frames 10 are rotatably connected between the two connecting shafts 9. The cable tie frames 10 are arc-shaped. The two adjacent cable tie frames 10 face each other. Because of the cable tie frames 10, the cable is clamped between the corresponding two cable tie frames 10. The two cable tie frames 10 are squeezed by the cable and rotate in opposite directions to open. The pressure plate 11 on one side of the cable tie frames 10 squeezes the compression spring 13. After being squeezed and compressed, the compression spring 13 rebounds and drives the two cable tie frames 10 to clamp the cable, clamping the cable in the two cable tie frames 10. This prevents the cable from shaking randomly in the protective box 1. The pressure plate 11 is fixedly connected to one side of the cable tie frame 10. Two limiting rods 12 are fixedly connected to the side of the base plate 8 opposite to the pressure plate 11. Because of the limiting rods 12, the limiting rods 12 can prevent the compression spring 13 from shifting when compressed. The two limiting rods 12 are sleeved with compression springs 13. The two ends of the compression springs 13 are connected to the pressure plate 11 and the base plate 8, respectively.

[0022] The working principle of this utility model is as follows: When using this device, the two cables to be connected are passed through the wiring holes 2 on both sides of the protective box 1, and the two cables are respectively clamped in the two sets of cable trays 10 inside the protective box 1. The two adjacent cable trays 10 are squeezed by the cables and rotate in opposite directions between the corresponding two connecting shafts 9. The pressure plate 11 squeezes the compression spring 13. After being squeezed, the compression spring 13 rebounds and drives the two cable trays 10 to clamp the cables through the pressure plate 11. Then, by rotating the nut 6, the two corresponding nuts 6 move horizontally on the outer wall of the bolt 5. Through the squeezing protrusion 4, the two adjacent fixing brackets 3 move closer to clamp the cables, thereby fixing the part of the cable passing through the wiring hole 2 inside the wiring hole 2.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A tensile-resistant low-voltage cable connection device, comprising a protective box (1), characterized in that: The protective box (1) has two wiring holes (2) on each side. Two fixing brackets (3) are provided in the wiring holes (2). There are four fixing brackets (3). The fixing brackets (3) are U-shaped and fit into the inner wall of the wiring holes (2). The two adjacent fixing brackets (3) are oriented opposite each other. Two protrusions (4) are fixedly connected to the two ends of one side of the fixing bracket (3). A bolt (5) is provided between the two adjacent protrusions (4). The bolt (5) passes through the two adjacent protrusions (4) and is slidably connected to them. Two nuts (6) are threaded to the outer wall of the bolt (5). The two nuts (6) are symmetrically distributed about the center of the bolt (5) on one side of the protrusion (4). Two stops (7) are fixedly connected to the two ends of the bolt (5). Two base plates (8) are symmetrically fixed about the center of the inner wall of the bottom of the protective box (1).

2. The tensile-resistant low-voltage cable connection device according to claim 1, characterized in that: Two connecting shafts (9) are fixedly connected above the base plate (8), and two cable trays (10) are rotatably connected between the two connecting shafts (9).

3. The tensile-resistant low-voltage cable connection device according to claim 2, characterized in that: A pressure plate (11) is fixedly connected to one side of the cable tie (10). Two limiting rods (12) are fixedly connected to the side of the base plate (8) opposite to the pressure plate (11). Compression springs (13) are sleeved on the two limiting rods (12). The two ends of the compression springs (13) are connected to the pressure plate (11) and the base plate (8) respectively.

4. The tensile-resistant low-voltage cable connection device according to claim 1, characterized in that: The protective box (1) is provided with a top cover (14) on the top, and four hooks (15) are fixedly connected to the four corners below the top cover (14).

5. A tensile-resistant low-voltage cable connection device according to claim 4, characterized in that: The protective box (1) has four slots (16) at its four corners, and the positions of the four slots (16) correspond to the positions of the four hooks (15).

6. A tensile-resistant low-voltage cable connection device according to claim 2, characterized in that: The cable tie (10) has an arc-shaped design, and the directions of two adjacent cable tie (10) are opposite.

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