Auxiliary wiring device for electrical instrument installation

Abstract

An auxiliary wiring device for electrical instrument installation belongs to the technical field of electrical instrument installation. The auxiliary wiring device for electrical instrument installation comprises a wiring box and a spring box which are fixedly connected to form an integral cavity. A pair of through grooves are arranged on the wiring box. Wiring wires are arranged in the wiring box. The wiring wires are wound on a winding roller. The two ends of the wiring wires respectively pass through the corresponding through grooves, and wiring terminals are arranged on the extending ends. A volute spring is arranged in the spring box. One end of the volute spring is fixedly connected with the inner wall of the spring box, and the other end is fixedly connected with the winding roller. The winding roller is provided with a limiting plate at least at the end close to the spring box, so as to limit the position of the wiring wires in the axial direction of the winding roller and the wiring wires during the winding process. The utility model can realize automatic winding of the wiring wires and improve the pulling and winding efficiency.

Description

Technical Field

[0001] This utility model relates to an auxiliary wiring device for electrical instrument installation, belonging to the field of electrical instrument installation technology. Background Technology

[0002] Electrical instruments are a class of instruments specifically designed for measuring and monitoring electrical parameters (such as voltage, current, resistance, power, and electrical energy). Their core functions include real-time data acquisition, display, recording, and control, providing crucial support for the safe operation of power systems and energy management. Auxiliary wiring devices for electrical instrument installation are auxiliary equipment used during the installation process of electrical instruments, designed to solve the problems of excessively long and inconvenient wiring in traditional wiring devices. Traditional auxiliary wiring devices for electrical instrument installation typically protect the box and the terminal blocks inside the box. Wires pass through through holes in the side wall of the box and connect to the terminal blocks. However, electrical experiments require selecting wires of different lengths for use, which is cumbersome, and some excessively long wires are inconvenient to manage, hindering quick connections by workers.

[0003] Chinese patent application CN118983666A discloses an auxiliary wiring device for electrical instrument installation. It describes a setup consisting of a transmission rod, a first gear, a second gear, a first rotating shaft, a second rotating shaft, and a rotating roller. In use, a throttle handle drives a turntable, which in turn rotates the transmission rod. The first gear then drives the second gear, causing the first rotating shaft to rotate the rotating roller. The forward and reverse rotation of the transmission rod allows for the winding or extension of the wire, simplifying the process. While this device solves the aforementioned problems of quick wiring and cable management, it requires multiple rotations of the transmission rod when extending or winding the wire. This is particularly problematic when extending or winding longer wires, leading to longer extension and winding times and reducing the device's practicality. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, this utility model proposes an auxiliary wiring device for electrical instrument installation, which can automatically rewind the wiring wires, thereby improving the efficiency of pulling and rewinding.

[0005] This utility model relates to an auxiliary wiring device for electrical instrument installation, including a junction box and a spring box that are fixedly connected to form an integral cavity;

[0006] The junction box is equipped with a pair of through slots;

[0007] The junction box contains a wiring wire, which is wound on a take-up roller. Both ends of the wiring wire pass through corresponding slots, and a terminal is provided at the protruding end.

[0008] The spring box contains a spiral spring, one end of which is fixedly connected to the inner wall of the spring box, and the other end is fixedly connected to the winding roller.

[0009] The winding roller is provided with a limiting plate at least at one end near the spring box to limit the position of the wiring wire in the axial direction of the winding roller and during the winding process, so as to avoid interference between the wiring wire and the spiral spring, which would affect the overall service life and smooth operation.

[0010] In some specific implementation schemes, the winding roller is also provided with a limiting plate at the end away from the spring box.

[0011] In some specific implementations, the through groove is at least partially in contact with the surface of the wiring wires passing through it.

[0012] Preferably, the through groove is provided with ball bearings or needle rollers along the wall of the through groove to reduce the friction of the wire sliding, improve its service life and the smoothness of pulling the wire.

[0013] In some specific implementation schemes, the junction box and spring box are provided with cylindrical convex shafts, and the two ends of the winding roller are sleeved on the cylindrical convex shafts.

[0014] In some specific implementation schemes, the junction box and spring box are equipped with bearings, and the two ends of the take-up roller are connected to the bearings. By setting the bearings, the smoothness of take-up and unwinding is improved.

[0015] For some specific implementation schemes, the through slots may be set on the same side or opposite sides, with opposite side setting being preferred to facilitate installation and wiring operations.

[0016] In some specific implementation schemes, the winding roller is provided with winding holes, and the wiring wires are passed through the winding holes, thereby improving winding efficiency.

[0017] Compared with the prior art, the present invention has the following technical effects:

[0018] When wiring is required, one end of the wiring cable is connected to the equipment through the terminal block, and the operator can pull the other end of the wiring cable to easily connect it to another device. When winding is required, the terminal block at one end is first separated from the device it is connected to. Under the action of the spiral spring, the winding roller rotates automatically to achieve winding, shortening the extension and winding time, resulting in high operating efficiency and a good operating experience. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the internal structure of Example 1;

[0020] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0021] In the diagram: 1. Junction box; 11. Through groove; 12. Groove; 13. Ball bearing; 2. Spring box; 3. Scroll spring; 4. Take-up roller; 5. Bearing; 6. First limiting plate; 7. Second limiting plate; 8. Wiring wire; 81. First wire connection part; 82. Second wire connection part; 91. First terminal; 92. Second terminal. Detailed Implementation

[0022] The present invention will now be described in detail with reference to specific embodiments.

[0023] Example 1

[0024] like Figure 1 and Figure 2 As shown, this embodiment includes a junction box 1 and a spring box 2 that are fixedly connected to form an integral cavity.

[0025] The junction box 1 is provided with a pair of through slots 11, preferably the two through slots 11 are arranged on opposite sides;

[0026] Junction box 1 is provided with a take-up roller 4 and a connecting wire 8; preferably, the take-up roller 4 is provided with a winding hole, and the connecting wire 8 is passed through the winding hole;

[0027] The connecting wire 8 is wound on the take-up roller 4. The two ends of the connecting wire 8 pass through the corresponding through grooves 11 respectively, and the protruding end is provided with a terminal. The protruding end is divided into a first wire connection part 81 and a second wire connection part 82, and the corresponding terminal is divided into a first terminal 91 and a second terminal 92. That is, the first wire connection part 81 passes through the through groove 11 and the first terminal 91 is sleeved at the protruding end, and the second wire connection part 82 passes through another through groove 11 and the second terminal 92 is sleeved at the protruding end.

[0028] The through groove 11 is at least partially in contact with the surface of the wire connection portion passing through it; preferably, a plurality of grooves 12 are provided along the wall of the through groove, and ball bearings 13 are provided in the grooves 12. The ball bearings 13 are in contact with the surface of the wire 8, reducing friction during the stretching and winding of the wire 8.

[0029] The spring box 2 is equipped with a spiral spring 3. One end of the spiral spring 3 is fixedly connected to the inner wall of the spring box 2, and the other end is fixedly connected to the winding roller 4.

[0030] The take-up roller 4 is provided with a limiting plate at least at one end near the spring box 2; preferably, there are two limiting plates, which are respectively provided at both ends of the take-up roller, with the first limiting plate 6 being closer to the spring box 2 and the second limiting plate 7 being farther away from the spring box 2.

[0031] The junction box 1 and spring box 2 are equipped with bearings 5, and the two ends of the winding roller 4 are connected to the bearings 5, making the process of pulling out and winding the wire smoother.

[0032] In this embodiment, when wiring is required, one end of the wiring wire is connected to the equipment through the corresponding terminal block. Then, the operator can pull the other end of the wiring wire to easily connect it to another device. When winding is required, the terminal block at one end is first separated from the device it is connected to. Under the action of the spiral spring, the winding roller automatically rotates to achieve winding, shortening the extension and winding time, resulting in high operating efficiency and a good operating experience.

[0033] It should be emphasized that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An auxiliary wiring device for installing electrical instruments, characterized in that, This includes a junction box and a spring box that are fixedly connected to form an integrated cavity; The junction box is equipped with a pair of through slots; The junction box contains a wiring wire; the wiring wire is wound on a take-up roller, with both ends of the wiring wire passing through corresponding through slots, and a terminal is provided at the protruding end; The spring box contains a spiral spring, one end of which is fixedly connected to the inner wall of the spring box, and the other end is fixedly connected to the winding roller. The winding roller is provided with a limiting plate at least at one end near the spring box.

2. The auxiliary wiring device for electrical instrument installation according to claim 1, characterized in that, The winding roller is also provided with a limiting plate at the end away from the spring box.

3. The auxiliary wiring device for electrical instrument installation according to claim 1, characterized in that, The groove is at least partially in contact with the surface of the wiring wire passing through it.

4. The auxiliary wiring device for electrical instrument installation according to claim 3, characterized in that, The groove is provided with ball bearings or needle rollers along the groove wall.

5. The auxiliary wiring device for electrical instrument installation according to claim 1, characterized in that, The junction box and spring box are provided with cylindrical convex shafts, and the two ends of the winding roller are sleeved on the cylindrical convex shafts.

6. The auxiliary wiring device for electrical instrument installation according to claim 1, characterized in that, The junction box and spring box are equipped with bearings, and the two ends of the winding roller are connected to the bearings.

7. The auxiliary wiring device for electrical instrument installation according to claim 1, characterized in that, The through slots can be arranged on the same side or on opposite sides.

8. The auxiliary wiring device for electrical instrument installation according to claim 1, characterized in that, The winding roller is provided with winding holes, and the wiring wires are passed through the winding holes.

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