Mounting box for multiple grounding wires

Abstract

The utility model relates to the technical field of ground wires of power transmission lines, in particular to a mounting box for multiple ground wires, which comprises a box body provided with a shaft rod. The outer side of the shaft rod is rotationally connected with a plurality of winding rolls, wires are wound around the outer sides of the winding rolls, one end of each wire penetrates through the box body and is connected with a chuck piece, and the other ends of the wires are jointly converged into a main circuit through a wire structure. According to the utility model, a six-grounding-wire structure composed of the six groups of chuck members and the wires is used for short-circuit grounding of a device to be overhauled, the chuck members with the corresponding number of the installation box are pulled out and then installed at the overhaul position of the disconnecting switch, and a line can be short-circuited and led to the ground through a main line and the grounding rod. According to the utility model, the wire is connected with the cable, so that the damage of induced voltage and current to maintainers is prevented, a protection effect is achieved, and meanwhile, the wire adopts a furling structure design, so that the cable storage convenience and the overall portability are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding wires for power transmission lines, in particular to an installation box for multiple grounding wires. Background Art

[0002] During the maintenance of 10kV overhead railway line equipment, high induced voltages and currents are generated during power outages, posing a significant risk of electric shock. Because these lines are typically located on both sides of the railway, parallel to the catenary and intersecting with local power lines, they pose a significant risk of electric shock. This is especially true when inspecting disconnectors, which require constant opening and closing for commissioning. Separating these disconnectors disconnects the lines, even though safety measures have been implemented, posing a significant risk of electric shock to maintenance personnel.

[0003] To mitigate this risk, one existing safety measure is the use of a safety cable. This cable's structure is relatively simple, typically employing multiple clamps and a grounding wire for common grounding to provide short-circuit protection for the switch. For example, Chinese Patent Publication No. "CN209981511 U" discloses a miniature, low-voltage, short-circuit, and grounding personal safety cable. However, most existing safety cables are loosely coiled, resulting in a low level of integration and inability to accommodate multiple grounding wires, making them less portable.

[0004] Based on this, in order to further improve the storage convenience and overall portability of the wiring ground in the existing security line, we propose an installation box for multiple ground wires. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art that multiple grounding wires cannot be rolled up and stored, and to propose an installation box for multiple grounding wires.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] Design a mounting box for multiple grounding wires, including:

[0008] A box body with a shaft mounted thereon;

[0009] A plurality of winding reels are rotatably connected to the outer side of the shaft, and a wire is wound around the outer side of the winding reel, wherein one end of the wire passes through the box body and is connected to a clamping member, and the other ends of the plurality of wires are gathered together into a main line through a wire structure;

[0010] A grounding rod is further provided on the outer side of the box body, and the grounding rod is electrically connected to the main line. A fixing component for fixing the clamping member and the grounding rod is provided on the outer side of the box body.

[0011] Furthermore, a plurality of straight grooves are formed on the end surface of the box body, and a groove wheel is slidably connected to the inner side of the straight groove. The wire passes through the middle of the groove wheel and extends outward.

[0012] Furthermore, the conductor structure includes an electric slip ring fixed on the shaft, a rotating end of the electric slip ring is connected and fixed to the winding drum, and an output line of the rotating end of the electric slip ring is electrically connected to the other end of the conductor.

[0013] Furthermore, the shaft rod has a wiring cavity inside, the main line is installed in the wiring cavity, and the other end of the main line passes through and extends to the outside of the box body, wherein the outside of the shaft rod is also provided with a plurality of through holes connected to the wiring cavity, and the main line is connected to a plurality of branch lines electrically connected to the input end of the electric slip ring, and the branch lines are arranged in the through holes.

[0014] Furthermore, a receiving position is provided on the side of the cable reel, and a torsion spring is fixedly connected between the receiving position and the shaft.

[0015] Furthermore, the fixing component includes a mounting seat with a mounting hole, and two clamping arms are formed on the end surface of the mounting seat. There is an opening between the ends of the two clamping arms, and a clamping space is formed between the middle parts.

[0016] Furthermore, the box body includes a bottom box and a box cover, and the bottom box and the box cover are detachably connected, wherein an observation window and a handle are further provided above the box cover.

[0017] The utility model proposes an installation box for multiple grounding wires, which has the following beneficial effects: the utility model uses six grounding wire structures composed of six groups of clamps and wires to short-circuit and ground the equipment to be repaired. After the clamps of the installation box are pulled out and installed at the maintenance location of the isolation switch, the lines can be short-circuited and introduced into the earth through the main line and the grounding rod to prevent induced voltage and current from causing harm to maintenance personnel, thereby playing a protective role. At the same time, the wire adopts a retractable structure design, which greatly improves the convenience of cable storage and overall portability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional Figure 1 ;

[0019] Figure 2 The three-dimensional Figure 2 ;

[0020] Figure 3 It is a cross-sectional view of the utility model;

[0021] Figure 4 for Figure 3Schematic diagram of the enlarged structure of area A;

[0022] Figure 5 This is a schematic diagram of the box structure of the present utility model.

[0023] In the figure: 1. Box body; 10. Shaft; 11. Slotted groove; 12. Grooved wheel; 13. Wiring cavity; 14. Through hole; 15. Bottom box; 16. Box cover; 17. Observation window; 18. Handle; 2. Cable reel; 21. Wire; 22. Accommodation position; 23. Torsion spring; 3. Clamp; 4. Wire structure; 41. Slip ring; 5. Main line; 51. Branch line; 6. Grounding rod; 7. Fixing component; 71. Mounting hole; 72. Mounting seat; 73. Clamp arm. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Reference Figure 1-5 An embodiment of the present invention discloses a multi-grounding wire installation box, specifically comprising a box body 1 on which a shaft 10 is installed;

[0026] A plurality of winding reels 2 are rotatably connected to the outer side of the shaft 10. A wire 21 is wound around the outer side of the winding reel 2. One end of the wire 21 passes through the box body 1 and is connected to a clamp 3. The specific structure of the clamp 3 is conventional, and a conventional wire clamp can be used. The other ends of the plurality of wires 21 are gathered together into a main line 5 through a wire structure 4. By connecting the plurality of wires 21 to the main line 5, short-circuiting and grounding are facilitated.

[0027] Preferably, six clamping members 3 are provided in this embodiment, and the six clamping members 3 are equidistantly distributed on the outside of the box body 1. When in use, a corresponding number of clamping members 3 can be pulled out and connected to the transmission line according to maintenance needs. Since multiple clamping members 3 are commonly connected to a main line 5, the purpose of short-circuit grounding is achieved, thereby preventing induced voltage and current from causing harm to maintenance personnel during maintenance operations on power outage equipment on railway 10kV power lines, thereby playing a protective role.

[0028] A grounding rod 6 is also provided on the outside of the box body 1, and the grounding rod 6 is electrically connected to the main line 5. A fixing component 7 for fixing the clamping member 3 and the grounding rod 6 is provided on the outside of the box body 1. The grounding rod 6 is used to be inserted into the ground for grounding, or to be connected to the grounded ground wire to achieve grounding of the main line 5.

[0029] In some embodiments, the box body 1 has a plurality of one-slot grooves 11 on the end face, the one-slot grooves 11 are opened along the width direction of the wire reel 2, the design of the one-slot groove 11 is used to ensure the transverse movement space of the wire 21 when the wire reel 2 is wound and unwound, the inner side of the one-slot groove 11 is slidably connected with a groove-shaped wheel 12, the middle groove of the groove-shaped wheel 12 is clamped in the middle of the one-slot groove 11, and the two sides are used for stopping, the design of the sliding groove-shaped wheel 12 can protect the sliding of the wire 21, avoid the damage caused by the cutting action of the wire 21 and the edge of the one-slot groove 11, and the wire 21 penetrates the middle of the groove-shaped wheel 12 and extends outward.

[0030] On the basis of the above-mentioned embodiment, the wire structure 4 in the embodiment comprises an electric slip ring 41 fixed on the shaft 10, the electric slip ring 41 in the embodiment is provided as a hollow structure, which is sleeved on the outer side of the shaft 10, the rotating end of the electric slip ring 41 is connected and fixed with the wire reel 2, and the output line of the rotating end of the electric slip ring 41 is electrically connected with the other end of the wire 21, that is, the electric slip ring 41 is used to adapt the position of the wire reel 2 to avoid the problems of knotting and twisting of the wire 21.

[0031] Further, the shaft 10 has a wire cavity 13 inside, the main line 5 is installed in the wire cavity 13, and the other end of the main line 5 penetrates and extends to the outer side of the box body 1, wherein the outer side of the shaft 10 is also provided with a plurality of through holes 14 communicating with the wire cavity 13, a plurality of branch lines 51 electrically connected with the input end of the electric slip ring 41 are tapped on the main line 5, and the branch line 51 is arranged in the through hole 14.

[0032] That is, a plurality of electric slip rings 41 are connected by a plurality of branch lines 51 to realize the connection of a plurality of wires 21 and the main line 5, and when the circuit is maintained, the corresponding number of chuck pieces 3 required can be taken out, the specific structure of the electric slip ring 41 is the prior art, and will not be described here.

[0033] The wire 21 is automatically retracted and rewound by the torsion spring 23 when the wire 21 is retracted.

[0034] Preferably, the fixing component 7 in this embodiment includes a mounting seat 72 with a mounting hole 71, and two clamping arms 73 are formed on the end surface of the mounting seat 72, with an opening between the ends of the two clamping arms 73, and a clamping space is formed between the middle parts, that is, in this embodiment, the two clamping arms 73 are used to clamp, receive and fix the clamping member 3 and the grounding rod 6. Furthermore, the clamping member 3 in this embodiment is connected to a telescopic rod, and the telescopic rod is clamped in the two clamping arms 73. The design of the telescopic rod can realize the gripping operation of the clamping member 3, which is convenient for hanging the overhead line during maintenance.

[0035] It should be noted that the box body 1 in this embodiment includes a bottom box 15 and a box cover 16, and the bottom box 15 and the box cover 16 are detachably connected, wherein an observation window 17 and a handle 18 are also provided above the box cover 16. The design of the observation window 17 can facilitate observation of the working status of each internal cable reel 2, and the design of the handle 18 can realize convenient movement of the installation box.

[0036] When repairing power equipment, six grounding wire structures composed of six groups of clamps 3 and wires 21 are used to short-circuit and ground the equipment to be repaired. Especially when repairing the isolating switch, the isolating switch needs to be continuously opened and closed for debugging. When the isolating switch is separated, the line for which safety measures have been taken will be disconnected, which will cause a great risk of electric shock to the maintenance personnel. By pulling out the corresponding number of clamps 3 from the installation box and installing them at the maintenance location of the isolating switch, the line can be short-circuited and introduced into the earth through the main line 5 and the grounding rod 6 to prevent the induced voltage and current from causing harm to the maintenance personnel and play a protective role. At the same time, the wire 21 adopts a retractable structure design, which greatly improves the convenience of cable storage and overall portability.

[0037] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A mounting box for multiple grounding wires, characterized in that: include: A box body (1) is provided with a shaft (10); A plurality of winding drums (2) are rotatably connected to the outer side of the shaft (10), and a wire (21) is wound around the outer side of the winding drum (2), wherein one end of the wire (21) passes through the box body (1) and is connected to a clamping member (3), and the other ends of the plurality of wires (21) are gathered together into a main line (5) through a wire structure (4); A grounding rod (6) is also provided on the outside of the box body (1), and the grounding rod (6) is electrically connected to the main line (5). A fixing component (7) for fixing the clamping member (3) and the grounding rod (6) is provided on the outside of the box body (1).

2. The installation box for multiple grounding wires according to claim 1, characterized in that: A plurality of straight grooves (11) are formed on the end surface of the box body (1), and a groove wheel (12) is slidably connected to the inner side of the straight groove (11). The wire (21) passes through the middle of the groove wheel (12) and extends outward.

3. The installation box for multiple grounding wires according to claim 1, characterized in that: The conductor structure (4) includes an electric slip ring (41) fixed on the shaft (10), the rotating end of the electric slip ring (41) is connected and fixed to the winding drum (2), and the output line of the rotating end of the electric slip ring (41) is electrically connected to the other end of the conductor (21).

4. The installation box for multiple grounding wires according to claim 3, characterized in that: The shaft (10) has a wiring cavity (13) inside, the main line (5) is installed in the wiring cavity (13), and the other end of the main line (5) passes through and extends to the outside of the box body (1), wherein the outside of the shaft (10) is also provided with a plurality of through holes (14) connected to the wiring cavity (13), and the main line (5) is connected to a plurality of branch lines (51) electrically connected to the input end of the electric slip ring (41), and the branch lines (51) are passed through the through holes (14).

5. The installation box for multiple grounding wires according to claim 3, characterized in that: A receiving position (22) is also provided on the side of the cable reel (2), and a torsion spring (23) is fixedly connected between the receiving position (22) and the shaft (10).

6. The installation box for multiple grounding wires according to claim 1, characterized in that: The fixing component (7) comprises a mounting seat (72) having a mounting hole (71), two clamping arms (73) are formed on the end surface of the mounting seat (72), an opening is provided between the ends of the two clamping arms (73), and a clamping space is formed between the middle parts.

7. A multi-grounding wire installation box according to any one of claims 1 to 6, characterized in that: The box body (1) comprises a bottom box (15) and a box cover (16), wherein the bottom box (15) and the box cover (16) are detachably connected, wherein an observation window (17) and a handle (18) are further provided above the box cover (16).

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