Special grounding tool for medium-voltage ring main unit and cable distribution box

Abstract

The utility model relates to the technical field of grounding wires, and provides a special grounding tool for a medium-voltage ring main unit and a cable distribution box, which is characterized in that an operating rod and a rotating sleeve are detachably connected in a manner that a bolt is matched with a T-shaped opening, and internal threads of the rotating sleeve are connected with or separated from a bolt in an equipment cabinet by rotating the operating rod. When the position of the copper head is fixed or loosened, the plug pins are arranged at the two ends of the T-shaped opening, the operating rod and the rotating sleeve cannot fall off, when the operating rod and the rotating sleeve need to be disassembled, the operating rod and the rotating sleeve can be separated only by arranging the plug pins in the middle of the T-shaped opening, and the grounding wire is installed after the operating rod is taken out. According to the utility model, a small gap is reserved between the copper head and the rotating sleeve and can rotate relatively, so that when the rotating sleeve is installed or taken down, the copper head cannot rotate along with the rotating sleeve, the grounding wire cannot be wound on the operating rod, the grounding wire is more convenient to assemble and disassemble, the problem that a traditional grounding wire cannot close an equipment cabinet door is avoided, and the safety is higher.

Description

TECHNICAL FIELD

[0001] The utility model grounding wire technical field especially a kind of special grounding tool for medium voltage ring main unit and cable distribution box. BACKGROUND

[0002] With the gradual improvement of power facilities, the special grounding wire is often installed in the ring network cabinet and cable branch box in the actual work, and there are many problems in the installation and maintenance process of traditional grounding wire.

[0003] First, the traditional grounding wire assembly is more, and the extension bolt and the insulating operating rod are integrated and cannot be disassembled, which will cause incomplete disassembly of the assembly and power failure when disassembled, and the length of the original grounding rod insulating operating rod is only 45 cm, which does not meet the requirement of 0.7 m of 10 kV minimum safety distance in GB / 26859-2011 Electric Safety Work Procedures (Electric Power Line Part), and second, the insulating rod and the grounding wire ring are easily wound during the installation and disassembly of the grounding wire, the equipment cabinet door cannot be closed, which increases the risk of equipment damage and electric shock of personnel.

[0004] Therefore, a special grounding tool for medium voltage ring main unit and cable distribution box is needed, which can close and lock the cabinet door after the installation of the grounding wire, further improve the operation safety and operation convenience, meet the requirements of regulations and specifications, greatly reduce the personal safety hazards and ensure the safety of social public areas. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems of the prior art, providing a special grounding tool for medium voltage ring main unit and cable distribution box, which can close and lock the cabinet door after the installation of the grounding wire, further improve the operation safety and operation convenience, meet the requirements of regulations and specifications, greatly reduce the personal safety hazards and ensure the safety of social public areas.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A special grounding tool for medium voltage ring main unit and cable distribution box, comprising: an operating rod, a rotating sleeve detachably connected to the upper end of the operating rod, and a copper head sleeved with the rotating sleeve; the outer side of the copper head is connected with one end of the grounding wire;

[0008] The operating rod is provided with a bolt at the upper end, and the bolt passes out of the operating rod by a distance at both ends; the lower end of the connecting seat is provided with T-shaped openings on both sides, and the T-shaped openings are detachably connected with the bolt; the inner wall of the upper end of the rotating sleeve is provided with internal threads, which are matched with the external threads of the bolt in the equipment cabinet; the rotating sleeve and the copper head can rotate relative to each other.

[0009] Preferably, the upper copper head section is a cylindrical tube, the lower copper head section is provided with a plurality of protrusions, and a screw is arranged on each protrusion.

[0010] Preferably, a handle is arranged on the lower end of the operating rod.

[0011] Preferably, the operating rod is made of epoxy resin, the handle is made of insulating plastic, and a plurality of anti-skid patterns are arranged on the outer side of the handle.

[0012] Preferably, an insulator is arranged on the operating rod.

[0013] The utility model discloses a kind of special grounding tools for medium voltage ring main unit, cable distribution box, with following beneficial effects.

[0014] The operating rod and the rotating sleeve are detachably connected by the way of bolt and T-shaped opening cooperation, the rotating sleeve internal thread is connected with the bolt in the equipment cabinet or separated by rotating the operating rod, when the position of copper head is fixed or loosened, the bolt is placed in the two ends of T-shaped opening, the operating rod and the rotating sleeve will not fall off, when the operating rod and the rotating sleeve need to be detached, the bolt is only placed in the middle of T-shaped opening, the operating rod and the rotating sleeve can be separated, the installation of grounding wire is completed after the operating rod is taken out, small gap is left between the copper head and the rotating sleeve in the utility model, and the copper head can rotate relatively, when the rotating sleeve is installed or the copper head is taken down, the copper head will not rotate with the rotating sleeve, the grounding wire will not be wound on the operating rod, the grounding wire is more convenient in installation and disassembly process, the problem that traditional grounding wire cannot close equipment cabinet door is avoided, and the safety is higher. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic diagram of the utility model.

[0016] Figure 2 It is the front view structure schematic diagram of the utility model.

[0017] Figure 3 It is Figure 2 It is the sectional structure schematic diagram of A-A section.

[0018] Figure 4 It is Figure 3 It is the local enlarged schematic diagram of A.

[0019] Figure 5 It is the structure schematic diagram of rotating sleeve of the utility model.

[0020] Figure 6 It is the connecting schematic diagram of rotating sleeve and operating rod of the utility model.

[0021] In the drawings: 1-copper head; 2-screw; 3-operating rod; 4-insulator; 5-handle; 6-rotary sleeve; 61-connection seat; 62-T-shaped opening; 7-ground wire; 8-peg. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0023] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Embodiment 1

[0024] Reference Figures 1 to 3 A kind of medium voltage ring network cabinet, cable distribution box special grounding tool, comprising: operating rod 3, with the detachable connection of operating rod 3 upper end rotary sleeve 6, with the copper head 1 of rotary sleeve 6 sleeve;

[0025] Please refer to Figure 6 Operating rod 3 upper end is worn with peg 8, peg 8 both ends are worn out operating rod 3 distance is equal, in the embodiment, peg 8 is fixedly connected between operating rod 3, avoid peg 8 and operating rod 3 fall off;Please refer to Figure 4 And Figure 5 Rotary sleeve 6 lower end is equipped with connection seat 61, connection seat 61 is equipped with operating rod 3 upper end, and T-shaped opening 62 is designed on the both sides of the lower end of connection seat 61, T-shaped opening 62 is detachably connected with peg 8;It should be understood that the distance of peg 8 both ends worn out operating rod 3 is less than the wall thickness of connection seat 61, and the inner wall on the upper end of rotary sleeve 6 is equipped with internal thread, which is matched with the external thread of bolt in the equipment cabinet;Rotary sleeve 6 and copper head 1 are left with small gap, and rotary sleeve 6 and copper head 1 can rotate relative to each other.

[0026] When installing the grounding wire 7, the grounding wire 7 is connected with the copper head 1 through the screw 2, the rotating sleeve 6 is connected with the operating rod 3 through the bolt 8 and the T-shaped opening 62 of the rotating sleeve 6, the operating rod 3 is rotated to make the bolt 8 located at one side of the T-shaped opening 62, the sleeve joint of the operating rod 3 and the rotating sleeve 6 will not be detached, the operating rod 3 is continuously rotated to make the inner thread provided on the inner wall of the upper end of the rotating sleeve 6 connected with the bolt in the equipment cabinet, so that the position of the copper head 1 is fixed, the fixing of the copper head 1 is completed, at this time, the operating rod 3 and the rotating sleeve 6 are detached, the bolt 8 is arranged in the middle of the T-shaped opening 62, so that the operating rod 3 and the rotating sleeve 6 are separated, the operating rod 3 is taken out, and the installation of the grounding wire 7 is completed. In the installation process of the grounding wire 7, since the small gap is left between the copper head 1 and the rotating sleeve 6, the rotating sleeve 6 and the copper head 1 can be relatively rotated, the copper head 1 will not rotate with the rotating sleeve 6, and the grounding wire 7 will not be wound on the operating rod 3. After the operating rod 3 and the rotating sleeve 6 are detached, the operating rod 3 is taken out, and the cabinet door can be closed at this time.

[0027] When the grounding wire 7 is removed, the operating rod 3 is reversely rotated to make the bolt 8 located at the other side of the T-shaped opening 62, the sleeve joint of the operating rod 3 and the rotating sleeve 6 will not be detached, the operating rod 3 is continuously reversely rotated to loosen the connection between the inner thread provided on the inner wall of the upper end of the rotating sleeve 6 and the bolt in the equipment cabinet, the operating rod 3, the rotating sleeve 6 and the copper head 1 are taken out, and the grounding wire 7 is removed. In the removal process of the grounding wire 7, since the small gap is left between the copper head 1 and the rotating sleeve 6, the rotating sleeve 6 and the copper head 1 can be relatively rotated, the copper head 1 will not rotate with the rotating sleeve 6, and the grounding wire 7 will not be wound on the operating rod 3.

[0028] The operating rod 3 and the rotating sleeve 6 of the embodiment are detachably connected through the cooperation of the bolt 8 and the T-shaped opening 62, the inner thread of the rotating sleeve 6 is connected with or separated from the bolt in the equipment cabinet by rotating the operating rod 3, the position of the copper head 1 is fixed or loosened, the bolt 8 is arranged at the two ends of the T-shaped opening 62, and the operating rod 3 and the rotating sleeve 6 will not be detached. When the operating rod 3 and the rotating sleeve 6 need to be detached, the bolt 8 is arranged in the middle of the T-shaped opening 62, so that the operating rod 3 and the rotating sleeve 6 are separated, the operating rod 3 is taken out, and the installation of the grounding wire 7 is completed. In the embodiment, the small gap is left between the copper head 1 and the rotating sleeve 6, and the copper head 1 can be relatively rotated, so that the copper head 1 will not rotate with the rotating sleeve 6 when the rotating sleeve 6 installs or takes down the copper head 1, the grounding wire 7 will not be wound on the operating rod 3, the grounding wire 7 is more convenient in the installation and removal process, the problem that the traditional grounding wire 7 cannot close the cabinet door is avoided, and the safety is higher. Embodiment 2

[0029] Based on embodiment 1, please refer to Figure 1In the embodiment, the upper section of the copper head 1 is a cylindrical tube, and the lower section of the copper head 1 is provided with a plurality of protrusions, and each protrusion is provided with a screw 2, and the screw 2 is connected with the terminal of the grounding wire 7, and specifically, in the embodiment, the plurality of protrusions provided on the lower section of the copper head 1 are arranged at equal intervals around the axis of the copper head 1, and the number of the protrusions is three, which not only meets the use requirement, but also effectively reduces the weight of the copper head 1, saves the manufacturing cost, and reduces the labor intensity of the operator.

[0030] As preferred, the lower end of the operating rod 3 is sleeved with a handle 5.

[0031] The operating rod 3 is made of epoxy resin, and the handle 5 is made of insulating plastic, and the outer side of the handle 5 is provided with a plurality of anti-skid lines to improve the comfort of holding and prevent slipping. The materials of the operating rod 3 and the handle 5 are both insulating materials, which improves the safety of operation, and in addition, the operating rod 3 is sleeved with an insulator 4 to further improve the insulation of the operating rod 3.

[0032] The above is only a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto. The substitution can be the substitution of part of the structure, device, method step, or the complete technical scheme. According to the technical scheme and the inventive concept of the present application, equivalent substitution or change should be covered in the protection scope of the present application.

Claims

1. A special grounding tool for medium voltage ring main unit, cable distribution box, characterized in that, Include: The operating rod (3), the rotating sleeve (6) which is detachably connected with the upper end of the operating rod (3), and the copper head (1) sleeved with the rotating sleeve (6); the outer side of the copper head (1) is connected with one end of the grounding wire (7); The operating rod (3) is provided with a bolt (8) at the upper end, and the bolt (8) passes through the operating rod (3) by a distance at both ends; the lower end of the rotating sleeve (6) is provided with a connecting seat (61), the connecting seat (61) is sleeved with the upper end of the operating rod (3), and the lower end of the connecting seat (61) is designed with T-shaped openings (62) on both sides, the T-shaped openings (62) are detachably connected with the bolt (8); the inner wall of the upper end of the rotating sleeve (6) is provided with an internal thread, the internal thread is matched with the external thread of the bolt in the equipment cabinet; the rotating sleeve (6) and the copper head (1) can rotate relative to each other.

2. The grounding tool for medium voltage ring main unit and cable distribution box according to claim 1, characterized in that, The upper segment of the copper head (1) is a cylindrical pipe, the lower segment of the copper head (1) is provided with a plurality of protrusions, and a screw (2) is correspondingly arranged on each protrusion; the screw (2) is connected with the terminal of the grounding wire (7) through clamping.

3. The grounding tool for medium voltage ring main unit and cable distribution box according to claim 1, characterized in that, The lower end of the operating rod (3) is sleeved with a handle (5).

4. The grounding tool for medium voltage ring main unit and cable distribution box according to claim 3, characterized in that, The operating rod (3) is made of epoxy resin, the handle (5) is made of insulating plastic, and the outer side of the handle (5) is provided with a plurality of anti-skid lines.

5. The grounding tool for medium voltage ring main unit and cable distribution box according to claim 1, 3 or 4, characterized in that, The operating rod (3) is sleeved with an insulator (4).

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