Improved cable branch box

Abstract

The utility model discloses an improved cable branch box, and belongs to the technical field of cable branch boxes. The inner wall of the box body is fixedly connected with a lining plate through a support column, the front surface of the lining plate is connected with a demultiplexer, the top of the demultiplexer is provided with a main line terminal, two sides of the bottom of the demultiplexer are both provided with branching terminals, the upper and lower sides of the inner wall of the box body are both rotatably connected with positive screw rods located at the front side of the lining plate, and the right ends of the positive screw rods are connected with negative screw rods. According to the utility model, the branch cable is clamped and fixed between the two opposite arc-shaped clamping plates, and the connecting end of the branch cable is connected and fixed with the branching terminal by using the bolt, so that the branch cable is clamped and fixed in the box body through the fixing mechanism, and the branch cable is connected with the wiring port after being firmly positioned; and the situation of short circuit caused by loosening of the joint is prevented.

Description

Technical Field

[0001] This utility model belongs to the technical field of cable branch boxes, specifically an improved cable branch box. Background Technology

[0002] Cable branch boxes are used only for cable branching. Their main function is to split or transfer cables.

[0003] A search revealed Chinese patent application number 202022158782.5, which discloses a cable branch box. The cable branch box includes a main cable and several corresponding branch cables, used for installing cables and fixing cable assemblies. The cable branch box includes a box body and a door hinged to the box body. Several temperature and humidity sensors, several current measurement modules, a voltage measurement module, a distance sensor, and a data transmission module are installed on the inner wall of the box. The temperature and humidity sensors are electrically connected to the data transmission module. The temperature and humidity sensors are used to detect the temperature and humidity inside the cable branch box and to measure the voltage value when there is a voltage drop in the branch cables. The current measurement module is used to measure the current value on the main cable or branch cables. The distance sensor is connected to the data transmission module. This invention solves the technical problem of low inspection efficiency for patrol personnel.

[0004] Although the aforementioned patents have solved the technical problem of low inspection efficiency for inspection personnel, in actual use, the branch cables are directly connected to the ports of the splitter, which cannot effectively fix the branch cables and can easily lead to loosening of the cable connection and short circuits, causing inconvenience to users.

[0005] Therefore, it is necessary to modify it by using a fixing mechanism inside the enclosure to clamp and fix the branch cables, so that the branch cables are firmly positioned before being connected to the wiring port, to prevent the connection from loosening and causing short circuits, and to facilitate user operation. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide an improved cable branch box, which features a fixing mechanism inside the box to clamp and fix the branch cables, ensuring the branch cables are securely positioned before connecting them to the wiring ports. This prevents loosening at the connection points and short circuits, and is convenient for users. It solves the problem that directly connecting the branch cables to the tap changer ports does not effectively fix the branch cables, easily leading to loosening at the cable connection points and short circuits.

[0007] This utility model provides the following technical solution: an improved cable branch box, including a box body, an inner lining plate fixedly connected to the rear side of the inner wall of the box body via a support column, a splitter fixedly connected to the upper front of the inner lining plate, a main line terminal provided at the top of the splitter, and branch line terminals provided on both the left and right sides of the bottom of the splitter, a positive screw rotatably connected to the upper and lower sides of the left side of the inner wall of the box body, located on the front side of the inner lining plate, a negative screw fixedly connected to the right end of the positive screw, the right end of the negative screw penetrating to the right side of the box body and fixedly connected to a drive wheel, and the surfaces of the two drive wheels being connected by a belt drive. A forward and reverse motor is fixedly connected to the right side of the housing via a support plate. The output end of the forward and reverse motor is fixedly connected to the right side of the transmission wheel located above. The surfaces of the forward and reverse motor and the transmission wheel are covered with protective shells, and the left side of the protective shell is fixedly connected to the right side of the housing. The outer sides of the surfaces of the forward and reverse screws are threaded with screw blocks. The back of the screw blocks is slidably connected to the front of the inner liner plate. A movable frame is fixedly connected to the front of the screw blocks. Fixed frames located inside the movable frames are fixedly connected to both the left and right sides of the inner liner plate. Corresponding arc-shaped clamps are fixedly connected to the front of the movable frame and the front of the fixed frames.

[0008] The beneficial effects of this utility model are as follows:

[0009] 1. This utility model involves inserting the main cable into the upper part of the enclosure and fixing it to the main terminal with bolts. Then, the branch cables are inserted into the lower part of the enclosure, positioning them inside the movable and fixed frames. The connection ends of the branch cables are brought into contact with the branch terminals. The forward and reverse motors are then started to rotate forward, driving the transmission wheel. The rotation of the transmission wheel drives the two reverse screws on the upper and lower sides to rotate, which in turn drives the forward screw. When the forward and reverse screws rotate simultaneously, the screw blocks on their surfaces move closer together, causing the two movable frames to move towards the fixed frame. The movement of the movable frames moves the arc-shaped clamps on their front sides until they are in contact with the surface of the branch cables, clamping and fixing the branch cables between the two opposing arc-shaped clamps. Finally, bolts are used to connect and fix the connection ends of the branch cables to the branch terminals. This achieves the clamping and fixing of the branch cables inside the enclosure through a fixing mechanism, ensuring the branch cables are firmly positioned before connecting them to the wiring ports, preventing loose connections and short circuits.

[0010] 2. This utility model protects the surface of the branch cable by setting a rubber protective strip, preventing the branch cable from rubbing against the arc-shaped clamp and causing damage. By setting a hollow groove, the contact area between the arc-shaped clamp and the branch cable is increased or decreased, preventing the branch cable from overheating. By setting a telescopic rubber cloth, the back of the branch cable is protected, preventing the branch cable from scratching against the positive and negative screws and causing damage. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a frontal sectional view of the present invention.

[0013] Figure 3 This is a schematic diagram of the cross-sectional structure of this utility model viewed from below.

[0014] Figure 4 This is a schematic diagram of the left-side cross-sectional structure of this utility model.

[0015] Figure 5 This is a schematic diagram of the right-side cross-sectional structure of this utility model. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] like Figures 1 to 5 As shown, the cable branch box in this embodiment includes a box body 1. An inner lining plate 2 is fixedly connected to the rear side of the inner wall of the box body 1 via a support column. A splitter 3 is fixedly connected to the upper front of the inner lining plate 2. A main line terminal 4 is provided on the top of the splitter 3. Split line terminals 5 are provided on both the left and right sides of the bottom of the splitter 3. A positive screw 6 located in front of the inner lining plate 2 is rotatably connected to the upper and lower sides of the left side of the inner wall of the box body 1. A negative screw 7 is fixedly connected to the right end of the positive screw 6. The right end of the negative screw 7 passes through to the right side of the box body 1 and is fixedly connected to a drive wheel 8. The surfaces of the two drive wheels 8 are connected by a belt 9. The right side of the box body 1 is fixedly connected by a support plate. A forward and reverse motor 10 is connected. The output end of the forward and reverse motor 10 is fixedly connected to the right side of the transmission wheel 8 located above. The surfaces of the forward and reverse motor 10 and the transmission wheel 8 are covered with protective shells, and the left side of the protective shell is fixedly connected to the right side of the housing 1. The outer sides of the surfaces of the forward screw 6 and the reverse screw 7 are threaded with screw blocks 11. The back of the screw blocks 11 is slidably connected to the front of the inner liner plate 2. The front of the screw blocks 11 is fixedly connected to a movable frame 12. The left and right sides of the inner liner plate 2 are fixedly connected to fixed frames 13 located inside the movable frame 12. The front of the movable frame 12 and the front of the fixed frame 13 are fixedly connected to corresponding arc-shaped clamps 14.

[0018] refer to Figure 3 The inner surface of the arc-shaped clamp 14 is fixedly connected with a number of evenly distributed rubber protective strips 15, and the surface of the arc-shaped clamp 14 is provided with a number of evenly distributed hollow grooves 16. The movable frame 12 is fixedly connected to the side opposite to the fixed frame 13 with a telescopic rubber cloth 17.

[0019] In this embodiment, the rubber protective strip 15 protects the surface of the branch cable, preventing friction between the branch cable and the arc-shaped clamp 14 and thus avoiding damage. The hollow groove 16 increases or decreases the contact area between the arc-shaped clamp 14 and the branch cable, preventing the branch cable from overheating. The stretchable rubber cloth 17 protects the back of the branch cable, preventing scratches between the branch cable and the positive screw 6 and the negative screw 7 and thus avoiding damage.

[0020] refer to Figure 2 and Figure 4 The main cable hole 18 is provided on the upper back of the box body 1, and the branch cable holes 19 are provided on the left and right sides of the lower back of the box body 1. The back of the main cable hole 18 and the branch cable hole 19 are connected to the rubber sleeve 20, and the surface of the rubber sleeve 20 is fitted with a clamp 21.

[0021] In this embodiment, by setting the corresponding main cable hole, branch cable hole 19, rubber sleeve 20 and clamp 21, the main cable and branch cable can be passed through the rubber sleeve 20 and inserted into the box 1. Then, the clamp 21 is used to shrink the rubber sleeve 20 to fix the outer ends of the main cable and branch cable and prevent shaking.

[0022] refer to Figure 4 A cooling fan 22 is fixedly connected to the back of the inner wall of the box 1. The output end of the cooling fan 22 faces the surface of the inner lining plate 2. A number of evenly distributed air inlet slots 23 are opened on the back of the box 1, and a number of evenly distributed ventilation slots 24 are opened on the surface of the inner lining plate 2.

[0023] In this embodiment, by setting up the corresponding cooling fan 22, air inlet slot 23 and vent slot 24, the external air can be quickly sent into the box 1 through the air inlet slot 23 by starting the cooling fan 22, and then blown onto the cable surface through the vent slot 24, which increases the air circulation speed inside the box 1 and improves the heat dissipation effect.

[0024] refer to Figure 1 A door 25 is hinged to the left side of the front of the box body 1. A magnetic strip 26 is fixedly connected to the front left side of the door 25. A square groove is opened on the right side of the front of the box body 1, and a metal strip 27 is fixedly connected inside the square groove. Sealing strips 28 are fixedly connected to all four sides of the front of the box body 1. The size of the sealing strip 28 is the same as that of the door 25.

[0025] In this embodiment, by setting the corresponding arrangement of the door 25, magnetic strip 26, and metal strip 27, the door 25 can be pushed to the right to close the box 1. When the door 25 is closed, the surface of the magnetic strip 26 contacts the surface of the metal strip 27 to generate magnetic force, which has a certain fixing effect on the door 25, preventing the door 25 from not closing tightly, and at the same time facilitating the opening of the door 25. By setting the sealing strip 28, the gap between the contact surface of the door 25 and the box 1 is sealed, improving the overall airtightness of the box 1.

[0026] refer to Figure 4 The back of the screw block 11 is fixedly connected to a T-shaped block 29. The upper and lower sides of the front of the inner liner plate 2 are provided with T-shaped grooves 30 corresponding to the T-shaped block 29. The surface of the T-shaped block 29 is slidably connected to the inner wall of the T-shaped groove 30.

[0027] In this embodiment, by setting the corresponding T-shaped block 29 and T-shaped groove 30, the screw block 11 is limited and prevented from falling off. When the positive screw 6 and the negative screw 7 rotate, the screw block 11 can only move left and right on the front of the inner liner plate 2, thus avoiding the situation where the screw block 11 gets stuck and falls off during movement, which would affect normal use.

[0028] This invention involves inserting the main cable into the upper part of the housing 1 and fixing it to the main terminal 4 with bolts. Then, branch cables are inserted into the lower part of the housing 1, positioned inside the movable frame 12 and the fixed frame 13, with the connection ends of the branch cables aligned with the branch terminals 5. The forward and reverse motor 10 is then started to rotate forward. This rotation drives the transmission wheel 8, which in turn drives the two reverse screws 7 on either side. The reverse screws 7 then drive the forward screw 6. When both the forward screw 6 and the reverse screw 7 rotate simultaneously... When the screw blocks 11 on its surface approach each other, they drive the two movable frames 12 to approach the fixed frame 13. The movement of the movable frame 12 drives the arc-shaped clamp 14 on its front to move until it is in contact with the surface of the branch cable, clamping and fixing the branch cable between the two opposing arc-shaped clamps 14. Then, bolts are used to connect and fix the branch cable connection end to the branch terminal 5, thereby achieving the clamping and fixing of the branch cable inside the box 1 by the fixing mechanism. The branch cable is firmly positioned before being connected to the wiring port to prevent the connection from loosening and short circuit.

Claims

1. An improved cable branch box, comprising a box body (1), characterized in that: The rear side of the inner wall of the box (1) is fixedly connected to the inner lining plate (2) by a support column. A splitter (3) is fixedly connected to the upper front of the inner lining plate (2). The top of the splitter (3) is provided with a main line terminal (4). The bottom left and right sides of the splitter (3) are provided with split line terminals (5). The upper and lower sides of the left side of the inner wall of the box (1) are rotatably connected to a positive screw (6) located in front of the inner lining plate (2). The right end of the positive screw (6) is fixedly connected to a negative screw (7). The right end of the negative screw (7) extends through to the right side of the box (1) and is fixedly connected to a transmission wheel (8). The surfaces of the two transmission wheels (8) are connected by a belt (9). A forward and reverse motor (10) is fixedly connected to the right side of the housing (1) via a support plate. The output end of the forward and reverse motor (10) is fixedly connected to the right side of the transmission wheel (8) located above. The outer surfaces of the forward screw (6) and the reverse screw (7) are threaded with screw blocks (11). The back of the screw block (11) is slidably connected to the front of the inner liner (2). A movable frame (12) is fixedly connected to the front of the screw block (11). Fixed frames (13) located inside the movable frame (12) are fixedly connected to both the left and right sides of the inner liner (2). Corresponding arc-shaped clamps (14) are fixedly connected to the front of the movable frame (12) and the front of the fixed frame (13).

2. The improved cable branch box according to claim 1, characterized in that: The inner surface of the arc-shaped clamp (14) is fixedly connected with a number of evenly distributed rubber protective strips (15), and the surface of the arc-shaped clamp (14) is provided with a number of evenly distributed hollow grooves (16). The movable frame (12) is fixedly connected with a telescopic rubber cloth (17) on the side opposite to the fixed frame (13).

3. An improved cable branch box according to claim 2, characterized in that: A main wire threading hole (18) is provided on the upper back of the box (1), and branch wire threading holes (19) are provided on the left and right sides of the lower back of the box (1). A rubber sleeve (20) is connected to the back of both the main wire threading hole (18) and the branch wire threading hole (19), and a clamp (21) is provided on the surface of the rubber sleeve (20).

4. An improved cable branch box according to claim 3, characterized in that: A cooling fan (22) is fixedly connected to the back of the inner wall of the box (1). A number of evenly distributed air inlet slots (23) are opened on the back of the box (1). A number of evenly distributed ventilation slots (24) are opened on the surface of the inner lining plate (2).

5. An improved cable branch box according to claim 4, characterized in that: A door (25) is hinged to the left side of the front of the box (1). A magnetic strip (26) is fixedly connected to the front left side of the door (25). A square groove is opened on the right side of the front of the box (1), and a metal strip (27) is fixedly connected inside the square groove. Sealing strips (28) are fixedly connected to all four sides of the front of the box (1).

6. An improved cable branch box according to claim 1, 2 or 5, characterized in that: The back of the screw block (11) is fixedly connected to a T-shaped block (29). The upper and lower sides of the front of the inner liner plate (2) are provided with T-shaped grooves (30) corresponding to the T-shaped block (29). The surface of the T-shaped block (29) is slidably connected to the inner wall of the T-shaped groove (30).

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