CN206211061U - A kind of telescopic grounding wire device - Google Patents

Abstract

The utility model discloses a retractable grounding wire device. The purpose is to freely adjust the length of the operating rod and freely replace different types of connecting clips according to the height of the suspended grounding wire and the size of the connection position. The adopted technical scheme is as follows: The connecting clip and the insulating rod are connected in sequence, the connecting clip includes a U-shaped jaw, a movable tongue is arranged in the jaw, the movable tongue is connected to one end of the screw, the screw is threadedly connected to the jaw, and the other end of the screw is provided with a joint; The insulating rod includes an insulating rod bayonet connected with the joint, the insulating rod bayonet is connected to the upper insulating rod, the upper insulating rod is sleeved in the lower insulating rod, and the upper insulating rod can be stretched out or retracted into the lower insulating rod. A lock buckle for fixing the upper insulating rod and the lower insulating rod is arranged at the connecting part of the upper insulating rod and the lower insulating rod.

Description

A retractable grounding wire device

technical field

The utility model relates to the technical field of electric power engineering, in particular to a telescopic grounding wire device.

Background technique

In the daily maintenance work of on-site workers, the grounding wire is an essential device used to ground the power failure line to ensure the safety of personnel during the maintenance work. Its function is to prevent the equipment from suddenly receiving electricity to generate arcs and voltages, which will cause harm to the on-site workers. " The State Grid Corporation of China Electric Power Safety Work Regulations clearly stipulates that the ground wire must be hung during power outage operations. However, in the actual process of hanging the ground wire, it was found that due to the different heights of the power equipment, the complicated position of the ground wire suspension connection point, the difficult operation angle, and the site environment Due to poor conditions and other reasons, it is time-consuming and laborious to hang the ground wire, and it also has a high risk of safe operation. According to the survey, the traditional ground wire often encounters the following problems in field application:

1. The traditional 10-35kV grounding wire group is generally composed of a single insulated operating rod connected to the grounding wire. The lengths are 25cm and 65cm respectively. The distance between the wire insulation poles is not enough and the grounding wire needs to be suspended from the height, which directly increases the safety risk of the height-climbing operation during the height-climbing process.

2. When the traditional grounding wire is suspended in the 10-35kV switchgear, the space of the 10kV switchgear is too small. When using the traditional standard length grounding wire to hang the grounding wire, it often happens that the grounding wire operating rod is too long to hang the grounding wire smoothly.

3. Due to the large difference in the structure of the installation point of the grounding wire of electrical equipment, the structure of the installation point is sometimes a wire type, sometimes a flat iron type, and the wire can be divided into a horizontal wire and a vertical wire, and the flat iron can be divided into a bridge type. Flat irons and flat irons, the installation of horizontal wires and flat irons is relatively easy, but the installation of vertical wires and bridge-type flat irons is very difficult, so some operating rod joints are often small in size when using conventional grounding wires. If it is not suitable, the suspended ground wire cannot be effectively fixed on the wire. If the wind swings or touches under the action of gravity, the ground wire hook is easy to fall off and hurt other electrical equipment and personnel, resulting in accidents.

4. The traditional grounding wire group is that the operating rod and the grounding wire chuck are fixedly connected together and cannot be separated, which leads to time-consuming and laborious recovery of the grounding wire. At the same time, it is necessary to separate the insulating rod and the grounding wire test during the regular test. Time-consuming, laborious, and troublesome.

Utility model content

In order to solve the problems in the prior art, the utility model proposes a telescopic grounding wire device that can freely adjust the length of the operating rod and freely replace different types of clamps according to the height of the suspended grounding wire and the size of the connection position.

In order to achieve the above purpose, the technical solution adopted by the utility model is: comprising connecting clamps and insulating rods connected in sequence, the connecting clamps include a U-shaped jaw, a moving tongue is arranged in the jaw, and the moving tongue is connected to one end of the screw rod , the screw rod is threadedly connected to the jaw, and the other end of the screw rod is provided with a joint; the insulating rod includes an insulating rod bayonet connected to the joint, the insulating rod bayonet is connected to the upper insulating rod, and the upper insulating rod is sleeved in the lower insulating rod. The upper insulation rod can extend or retract into the lower insulation rod, and the connecting part of the upper insulation rod and the lower insulation rod is provided with a lock for fixing the upper insulation rod and the lower insulation rod.

A connecting piece is provided on the bayonet of the insulating rod, and a slot for clamping the connecting piece is opened on the joint.

A limiting hole is provided on the side wall of the joint, and a screw hole is provided on the connecting piece of the bayonet of the insulating rod, and the joint is connected to the bayonet of the insulating rod through the limiting hole and the screw hole through a limiting screw.

Limiting holes are provided on both sides of the relative position of the side wall of the joint, and the joint is connected to the bayonet socket of the insulating rod through two limit screws.

The lock includes an inner lock and an outer lock.

The end of the lower insulating rod is provided with anti-skid material and warning signs.

The clamping portion of the moving tongue is provided with a sawtooth structure.

The clamping part of the clamping mouth is provided with a notch for clamping the circuit.

Compared with the prior art, the utility model sets the upper insulating rod in the lower insulating rod to form an insulating rod whose length can be adjusted freely. The insulating rod of the insulating rod and the insulating rod of the lower segment are used to prevent the upper insulating rod and the lower insulating rod from slipping at the joint during operation. The wiring clip required for the replacement of the scale can effectively improve labor efficiency. The utility model can conveniently and flexibly hang the grounding wire through the telescopic insulating rod, and it can be hung successfully at one time. The height of the insulating rod can be freely stretched according to the height of the connected equipment. Length, to achieve all ground work, to avoid the risk of high-altitude operations, the terminal clamp adopts a free replacement mode, which can be freely replaced according to the size of the on-site busbar and steel-cored aluminum stranded wire, and realizes the separate placement of grounding rods and grounding wires, which greatly saves grounding The utility model not only saves manpower and material resources, effectively improves the working conditions on site, but also ensures the safety of equipment and personal safety.

Further, a connecting piece is provided on the bayonet of the insulating rod, and a card slot is provided on the joint. The bayonet connection is easy to disassemble, and it is convenient to replace the required clamps according to the size of the connected position, which effectively improves labor efficiency, and at the same time makes the clamps and insulating rods more securely fixed.

Furthermore, the design of the inner and outer double locks makes the fixing of the upper insulation rod and the lower insulation rod more reliable, which increases the firmness and prevents the joints of the insulation rods from slipping.

Furthermore, the end of the insulating rod in the lower section is painted with yellow anti-slip material and warning signs to increase friction and remind not to exceed the warning position when operating wiring, which improves the safety warning function of personnel.

Furthermore, the clamping part of the moving tongue is provided with a sawtooth structure, and the clamping part of the clamping mouth is provided with a notch for clamping the circuit, so that the wiring can be clamped more firmly during operation, and the safety of the operation is improved.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of insulating rod;

Fig. 3 is the structural schematic diagram of wiring clip;

Among them, 1-clamp, 2-moving tongue, 3-screw, 4-limit screw, 5-limit hole, 6-joint, 7-insulation rod bayonet, 8-upper section insulation rod, 9-inner Layer lock, 10-outer layer lock, 11-lower insulation rod, 12-anti-slip material and warning signs.

detailed description

Below in conjunction with specific embodiment and accompanying drawing, the utility model is further explained and illustrated.

Referring to Fig. 1, the utility model includes connecting clamps and insulating rods connected in sequence. Referring to Fig. 3, the connecting clamps include a U-shaped clamping mouth 1, and the clamping part of the clamping mouth 1 is provided with a notch for clamping the circuit. There is a moving tongue 2 inside the mouth 1, and the clamping part of the moving tongue 2 is provided with a sawtooth structure. The moving tongue 2 is connected to one end of the screw 3, and the screw 3 is threaded to the jaw 1, and the other end of the screw 3 is provided with a joint. 6; see Figure 2, the insulating rod includes an insulating rod bayonet 7 connected to the joint 6, the insulating rod bayonet 7 is provided with a connecting piece, and the joint 6 is provided with a slot for clamping the connecting piece, and the side wall of the joint 6 Limiting holes 5 are provided on both sides of the relative position, screw holes are provided on the connecting piece of the insulating rod bayonet 7, and the joint 6 passes through the limiting holes 5 and the screw holes through two limiting screws 4 to connect the insulating rod bayonet 7, The insulating rod bayonet 7 connects the upper insulating rod 8, the upper insulating rod 8 is sleeved in the lower insulating rod 11, the upper insulating rod 8 can stretch out or retract in the lower insulating rod 11, the upper insulating rod 8 and the lower insulating rod The connecting part of the lower insulation rod 11 is provided with a lock for fixing the upper insulation rod 8 and the lower insulation rod 11. The lock includes an inner layer lock 9 and an outer layer lock 10, and the end of the lower insulation rod 11 is set There are non-slip materials and warning signs12.

The utility model includes a telescopic double-lock insulating rod and a freely replaceable wiring clip. The specific operation method of the utility model is as follows:

First, unscrew the outer lock 10 of the insulating rod when using it, pull out the upper insulating rod 8, and after pulling it to the required length, hold the lower insulating rod 11 tightly, and screw the upper insulating rod 8 half a turn in the opposite direction, and hear " After the sound of "click", the inner lock 9 is locked, and then the sheath of the outer lock 10 is tightened to complete the operation of adjusting the length of the insulating rod; then insert the joint 6 of the terminal clip into the bayonet 7 of the insulating rod, Then install the limit screws 4 to the limit holes 5 on both sides of the ground clamp joint and tighten them, that is, the installation of the connection between the ground clamp and the insulating rod is completed; when in use, the screw rod 3 is rotated by rotating the insulating rod to move the tongue 2 Move, clamp the ground wire between the jaw 1 and the moving tongue 2, and complete the corresponding operation; in the process of connecting the equipment with the ground wire group, if the size of the wire clip is found to be inappropriate, open the limiters on both sides of the wire clip. Screw 4 to take out the terminal clamp and replace it with a suitable terminal clamp.

The utility model can conveniently and flexibly hang the grounding wire through the telescopic insulating rod, and hang it successfully at one time; the length of the insulating rod can be freely stretched according to the height of the connected equipment, so as to realize all ground work and avoid the risk of climbing operations; Free replacement mode, which can be freely replaced according to the size of the on-site busbar and steel-cored aluminum stranded wire; the design of internal and external double locks increases the firmness, prevents the slipping of the connection of the insulating rod, and realizes the separation of the grounding rod and the grounding wire. place, which greatly saves the recovery and finishing time of the grounding wire. The tail is painted with yellow anti-skid material and warning signs to increase friction and remind not to exceed the warning position when operating the wiring. The anti-skid and warning design is added to improve the safety of personnel. Safety warning function, the utility model can freely adjust the length of the operating rod and freely replace different types of connection clips according to the height of the suspended grounding wire and the size of the connection position, which not only saves manpower and material resources, but also effectively improves the working conditions on site. Ensure the safety of equipment and personal safety.

Claims (8)

1. A retractable ground wire device, characterized in that it comprises a connecting clamp and an insulating rod connected in sequence, the connecting clamp comprises a U-shaped jaw (1), and a movable tongue (2) is arranged in the jaw (1) ), the moving tongue (2) connects one end of the screw rod (3), the screw rod (3) is threadedly connected with the jaw (1), and the other end of the screw rod (3) is provided with a joint (6); the insulating rod includes a joint (6) ) connected to the insulating rod bayonet (7), the insulating rod bayonet (7) is connected to the upper insulating rod (8), the upper insulating rod (8) is sleeved in the lower insulating rod (11), and the upper insulating rod ( 8) It can be stretched out or retracted into the lower insulation rod (11), and the connecting part of the upper insulation rod (8) and the lower insulation rod (11) is provided with a The lock of the rod (11). 2. A telescopic grounding wire device according to claim 1, characterized in that, the insulating rod bayonet (7) is provided with a connecting piece, and the joint (6) is provided with a card for clamping the connecting piece. groove. 3. A telescopic grounding wire device according to claim 2, characterized in that, a limited hole (5) is opened on the side wall of the joint (6), and a connecting piece of the insulating rod bayonet (7) is provided There is a screw hole, and the joint (6) passes through the limit screw (4) through the limit hole (5) and the screw hole to connect to the bayonet socket (7) of the insulating rod. 4. A telescopic ground wire device according to claim 3, characterized in that, the side walls of the joint (6) are provided with limiting holes (5) on both sides of the relative position, and the joint (6) passes through two The limit screw (4) is connected to the bayonet socket (7) of the insulating rod. 5. A retractable ground wire device according to claim 1, characterized in that the lock comprises an inner lock (9) and an outer lock (10). 6. The retractable ground wire device according to claim 1, characterized in that, the end of the lower insulating rod (11) is provided with anti-slip material and warning signs (12). 7. A telescopic ground wire device according to claim 1, characterized in that, the clamping part of the moving tongue (2) is provided with a sawtooth structure. 8. The retractable ground wire device according to claim 1, characterized in that, the clamping part of the clamping mouth (1) is provided with a notch for clamping the line.