CN214754624U

CN214754624U - Insulating auxiliary tool for assembling and disassembling three-phase short circuit grounding wire

Info

Publication number: CN214754624U
Application number: CN202120592093.7U
Authority: CN
Inventors: 张继明; 杨隶钓
Original assignee: Lincang Power Supply Bureau of Yunnan Power Grid Co Ltd
Current assignee: Lincang Power Supply Bureau of Yunnan Power Grid Co Ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-11-16
Anticipated expiration: 2031-03-24

Abstract

The utility model relates to an insulating auxiliary tool for assembling and disassembling a three-phase short circuit grounding wire, which comprises a trunk rod body, wherein the top end of the trunk rod body is provided with a hook which is connected with the trunk rod body through a universal steering device; the fixed suit handle in bottom of the trunk body of rod still is equipped with earth connection temporary hook on the trunk body of rod. The utility model discloses the tool mainly has a power failure type operation to electric wire netting circuit, equipment, and the work measure is arranged and need be changed circuit, equipment state from the operation to the maintenance state, in the process of hanging three-phase short circuit earth connection in the eminence, often takes place human and the metal of three-phase short circuit earth connection expose some, drainage wire touching act against the regulations; through the utility model discloses can effectively realize human and three-phase short circuit earth connection isolation function, prevent human and three-phase short circuit earth connection metal to expose partly, drainage wire touching etc. operation acts against regulations, greatly reduced operating personnel eminence hang the operational risk who establishes looks three-phase short circuit earth connection, stop the casualties accident of electrocution of personnel that this kind of act against regulations leads to.

Description

Insulating auxiliary tool for assembling and disassembling three-phase short circuit grounding wire

Technical Field

The utility model relates to an appurtenance, in particular to install and remove insulating appurtenance of three-phase short circuit earth connection.

Background

The power grid line is the main equipment for transmitting electric energy, and in order to ensure safe, reliable and continuous operation of a power grid and meet the increasing demand of power supply and utilization of power consumers, power grid construction needs to be continuously carried out, and maintenance and rush repair are carried out on operating equipment. Before power failure operation is carried out, in order to ensure the operation safety of constructors, permission measures and arrangement working measures need to be effectively finished, and the measures are realized by installing a grounding wire after power failure and electricity inspection. At present, a three-phase short-circuit grounding wire is arranged on the side of an equipment line after power failure and electricity testing links are finished, so that an operator can work in the protection range of the grounding wire, and the safety technical measures for working on electrical equipment are ensured.

For many years, three existing methods for assembling and disassembling short-circuit grounding wires in operation and maintenance work of distribution networks are as follows: the first method is that after the grounding wire is lifted in place, the grounding wire is temporarily held in the abdomen, the chest or placed on a safety belt, the operation is carried out by one hand, and then the grounding wire is installed one by one, and the dismounting sequence is opposite. And in the second method, after the grounding wire is hoisted in place, the grounding wire is hoisted to the near-end or lower-layer conducting wire in a multi-phase synchronous manner, and then the grounding wire is installed one by one, and the dismounting sequence is opposite. And thirdly, tying a rope fastener or manufacturing a temporary fixing tool on the electric pole body, temporarily storing suspension points after the electric pole is lifted in place as a grounding wire, and then installing the suspension points one by one, wherein the dismounting sequence is opposite. The problems of the three traditional installation methods are as follows: the operation difficulty is high; the time and the labor are consumed, and the grounding rod is easy to fall; is suitable for people with few crowds and difficult to carry out; the violation rate is large; the safety distance between the grounding wire and the human body is insufficient, and the personal safety risk level is high. Therefore, when the three-phase short-circuit grounding wire is assembled and disassembled at a high position, other auxiliary tools are needed to realize the safe isolation of the human body and the grounding wire, so that the purposes of time saving, labor saving and easy operation are achieved.

Based on the analysis, in the operation of assembling and disassembling the three-phase short-circuit grounding wire at a high place, due to factors such as the total weight of the grounding rod and the grounding drainage wire, the skill and physical strength of workers at the high place, the distribution line workers often have the behaviors of touching the naked metal of the three-phase short-circuit grounding wire and the grounding drainage wire by human bodies and breaking rules and falling objects at high altitude, so that the high risk of personal electric shock caused by equipment induced electricity, thunder or sudden incoming call exists, and the accident cases exist in China.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an install and remove insulating appurtenance of three-phase short circuit earth connection.

The utility model adopts the technical proposal that:

an auxiliary insulation tool for assembling and disassembling a three-phase short-circuit grounding wire comprises a trunk rod body, wherein a hook is arranged at the top end of the trunk rod body and is connected with the trunk rod body through a universal steering device; the fixed suit handle in bottom of the trunk body of rod still is equipped with earth connection temporary hook on the trunk body of rod.

Preferably, the hook adopts a hook with spring double tongues, tongue pieces for automatic clamping are symmetrically arranged on the inner side of the hook body, and the tongue pieces are connected with the hook body through springs.

Preferably, the universal steering device is composed of an upper connecting sleeve, a lower connecting sleeve, a universal rotating seat, an upper positioning bolt and a lower positioning bolt; the top of the upper connecting sleeve is riveted with the bottom of the hook body of the hook in a sleeved mode, the bottom of the lower connecting sleeve is riveted with the trunk rod body in a sleeved mode, the bottom of the upper connecting sleeve is connected with the universal rotary seat through the upper positioning bolt, the front and the back of the upper connecting sleeve can be positioned and rotated through the upper positioning bolt, the top of the lower connecting sleeve is connected with the universal rotary seat through the lower positioning bolt, and the left and the right positioning of the lower connecting sleeve can be rotated through the lower positioning bolt.

Preferably, the temporary hook of the grounding wire consists of a stainless steel sleeve, a connecting seat and a Z-shaped hook; one side of the connecting seat is provided with a U-shaped groove body, the stainless steel sleeve is positioned in the U-shaped groove body and fixedly sleeved on the trunk rod body through a bolt, and two ends of the connecting seat are symmetrically provided with Z-shaped hooks.

Preferably, one end of the Z-shaped hook is rotatably connected with the pin shaft connecting seat, a groove body matched with the Z-shaped hook to rotate is arranged on the connecting seat, the maximum rotation angle of the Z-shaped hook from the horizontal direction to the vertical direction is 90 degrees, and a furling fixing seat capable of fixing the other end of the Z-shaped hook is further arranged on the trunk rod body.

Preferably, the length of the trunk rod body is 1000mm, the diameter of the trunk rod body is phi 30mm, and the trunk rod body is made of an epoxy resin hollow tube.

The utility model has the advantages that:

the utility model discloses mainly be to the operation of power failure class of electric wire netting circuit, equipment, arrange permission measure and working measure, need to change circuit, equipment into the maintenance state from the running state promptly, probably the incoming telegram each side in the working area installs and removes the three-phase short circuit earth connection, and in the process of installing and removing the three-phase short circuit earth connection, often take place human body and three-phase short circuit earth connection metal exposed part, drainage wire touching violation of regulations; through the utility model discloses can effectively realize human and short circuit earth connection isolation function, prevent human and short circuit earth connection metal to expose partly, drainage wire touching etc. operation acts against the regulations, reduce the earth connection stick frequency of falling, greatly reduced operation personnel eminence hang the operation risk of establishing three-phase short circuit earth connection, stop the personnel's electric shock casualty accident that this kind of action of violating the regulations leads to, alleviate operation personnel intensity of labour.

The utility model adopts the insulated trunk rod body, the main material is insulated, the use is safe and reliable, the correct use is realized, the problem that the human body does not touch the exposed metal of the grounding wire and the grounding drainage wire is completely satisfied, and the effective isolation is realized; the utility model is matched with the universal suspension design, can be suspended on the wire, the complex position and the framework of any inclined angle after being adjusted according to the operation requirement, and has the advantages of time-saving operation, labor-saving, convenient and fast, firmness and reliability, and high safety; the temporary hook of the ground wire of the utility model can be folded, is convenient to store and carry; the utility model discloses simple manufacture, it is convenient to draw materials, and the cost of manufacture is lower, and mechanical strength, electrical safety performance homoenergetic meet the demands, are fit for using widely.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the universal steering apparatus of the present invention;

fig. 3 is a schematic structural view of the temporary hook of the ground wire of the present invention;

in fig. 1-3, 1-trunk body of rod, 2-couple, 3-universal steering gear, 4-handle, 5-earth connection temporary coupling, 6-tongue piece, 7-go up adapter sleeve, 8-lower adapter sleeve, 9-universal roating seat, 10-go up positioning bolt, 11-lower positioning bolt, 12-stainless steel sleeve pipe, 13-connecting seat, 14-Z hook, 15-draw in the fixing base in.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

As shown in figure 1, the utility model relates to an install and remove insulating appurtenance of three-phase short circuit earth connection, this install and remove insulating appurtenance of three-phase short circuit earth connection include the trunk body of rod 1, the length of trunk body of rod 1 is 1000mm, and the diameter is phi 30mm, adopts the preparation of epoxy hollow tube to form, satisfies light, mechanical strength and insulating requirement. The top end of the trunk rod body 1 is provided with a hook 2, and the hook 2 is connected with the trunk rod body 1 through a universal steering device 3; the fixed suit handle 4 in bottom of the trunk body of rod 1, still be equipped with earth connection temporary hook 5 on the trunk body of rod 1.

The specific structure of the hook is as follows:

the hook 2 of the auxiliary insulating tool for assembling and disassembling the three-phase short circuit grounding wire adopts a hook with a spring and double tongues, tongue pieces 6 for automatic clamping are symmetrically arranged on the inner side of a hook body, and the tongue pieces 6 are connected with the hook body through the spring and can be stably hung on a wire or a component with any inclination. The hook 2 can be made of metal or insulating material.

The specific structure of the universal steering device:

as shown in fig. 2, the universal steering apparatus 3 of the auxiliary insulation tool for attaching and detaching a three-phase short-circuit ground wire is composed of an upper connection bushing 7, a lower connection bushing 8, a universal swivel 9, an upper positioning bolt 10, and a lower positioning bolt 11. The top of the upper connecting sleeve 7 is sleeved and then riveted with the bottom of the hook body of the hook 2, the bottom of the lower connecting sleeve 8 is sleeved and then riveted with the trunk rod body 1, the bottom of the upper connecting sleeve 7 is connected with the universal rotary seat 9 through the upper positioning bolt 10, and the upper connecting sleeve 7 can be positioned and rotated on the front and rear directions relative to the universal rotary seat 9 through the upper positioning bolt 10. The top of connecting sleeve 8 is connected with universal roating seat 9 through positioning bolt 11 down, and connecting sleeve 8 can fix a position for universal roating seat 9 in the left and right directions through positioning bolt 11 down, and the operation personnel adjust as required, is convenient for hang on complicated component, platform. In addition, the universal steering device 3 can also adopt a gear tooth piece structure or a ratchet wheel structure to be matched with a positioning bolt for positioning and rotating.

Concrete structure of earth connection temporary hook:

as shown in fig. 3, the ground wire temporary hook 5 of the auxiliary insulation tool for assembling and disassembling the three-phase short-circuit ground wire is composed of a stainless steel sleeve 12, a connecting seat 13 and a Z-shaped hook 14; one side of connecting seat 13 is equipped with the U-shaped cell body, and nonrust steel sleeve 12 is located the U-shaped cell body, and fixes the suit on the trunk body of rod 1 through the bolt, and the both ends symmetry of connecting seat 13 is equipped with Z-shaped hook 14, is convenient for hang the earth connection stick temporarily and deposits. On the basis of the technical scheme, in order to further accomodate ground wire couple 5 temporarily, the one end and the round pin hub connection seat 13 of Z shape hook 14 rotate to be connected, are equipped with the 14 pivoted cell bodies of cooperation Z shape hook on the connecting seat 13, and Z shape hook 14 is 90 by the biggest turned angle of horizontal direction to vertical direction, and still is equipped with the fixing base 15 that draws in that can fix the Z shape hook 14 other end on the trunk body of rod 1, portable transportation.

The use method of the auxiliary insulating tool for assembling and disassembling the three-phase short-circuit grounding wire comprises the following steps:

before power-off operation of a power grid line and equipment, operators who arrange safety measures check the line, equipment name, serial number and position, after the safety condition of tower climbing operation is confirmed, a tower is ascended to a station convenient for assembling and disassembling a three-phase short-circuit grounding wire, the safety distance is met, after the fact that the line and the equipment have no voltage is verified, firstly, an insulating auxiliary tool for assembling and disassembling the three-phase short-circuit grounding wire is hoisted to a standing station, a Z-shaped hook 14 of a grounding wire temporary hook 5 is rotated to be opened, so that the Z-shaped hooks 14 which are symmetrical at two ends of a connecting seat 13 are rotated to be in a horizontal state, and the position of a stainless steel sleeve 12 is adjusted according to needs; then, the universal steering device 3 is adjusted as required, a hand handle is firmly hung on a complex component or a platform such as a lead, a tower cross arm or a switch pile head, a platform type transformer and the like through a hook 2 at the top end of a trunk rod body 1, after the universal steering device is firmly hung, the three-phase short circuit grounding wire is immediately lifted to a standing station, an insulating operation rod connected with the three-phase short circuit grounding wire is respectively hung on a Z-shaped hook 14 of a temporary grounding wire hook 5 phase by phase, finally, the grounding rod is respectively moved up to an overhead lead or an equipment terminal phase by phase, and the connection is firm, namely, the safe and effective connection operation of the three-phase short circuit grounding wire and the overhead line or the equipment terminal is completed. The removal sequence is reversed. From installing and removing first earth connection to the last, can guarantee that whole in-process of installing and removing stops human and earth connection and expose the touching problem of metal, ground connection drainage wire, prevents that thunder and lightning, response electricity or equipment from leading to the people's body electric shock accident suddenly, reduces the earth connection stick frequency of falling.

Claims

1. The utility model provides an install and remove insulating appurtenance of three-phase short circuit earth connection which characterized in that: the auxiliary insulating tool for assembling and disassembling the three-phase short-circuit grounding wire comprises a trunk rod body, wherein a hook is arranged at the top end of the trunk rod body and is connected with the trunk rod body through a universal steering device; the fixed suit handle in bottom of the trunk body of rod still is equipped with earth connection temporary hook on the trunk body of rod.

2. The auxiliary insulating tool for mounting and dismounting a three-phase short-circuit grounding wire according to claim 1, wherein: the hook adopts the couple of taking spring double tongue, and the hook body inboard symmetry is equipped with the tongue piece that is used for automatic centre gripping, and the tongue piece passes through the spring to be connected with the hook body.

3. The auxiliary insulating tool for mounting and dismounting a three-phase short-circuit grounding wire according to claim 1, wherein: the universal steering device consists of an upper connecting sleeve, a lower connecting sleeve, a universal rotating seat, an upper positioning bolt and a lower positioning bolt; the top of the upper connecting sleeve is riveted with the bottom of the hook body of the hook in a sleeved mode, the bottom of the lower connecting sleeve is riveted with the trunk rod body in a sleeved mode, the bottom of the upper connecting sleeve is connected with the universal rotary seat through the upper positioning bolt, the positioning rotation can be achieved through the upper positioning bolt, the top of the lower connecting sleeve is connected with the universal rotary seat through the lower positioning bolt, and the positioning rotation can be achieved through the lower positioning bolt.

4. The auxiliary insulating tool for mounting and dismounting a three-phase short-circuit grounding wire according to claim 1, wherein: the temporary hook of the grounding wire consists of a stainless steel sleeve, a connecting seat and a Z-shaped hook; one side of the connecting seat is provided with a U-shaped groove body, the stainless steel sleeve is positioned in the U-shaped groove body and fixedly sleeved on the trunk rod body through a bolt, and two ends of the connecting seat are symmetrically provided with Z-shaped hooks.

5. The auxiliary insulating tool for mounting and dismounting a three-phase short-circuit grounding wire according to claim 4, wherein: one end of the Z-shaped hook is rotatably connected with the pin shaft connecting seat, a groove body matched with the Z-shaped hook to rotate is arranged on the connecting seat, the maximum rotating angle of the Z-shaped hook from the horizontal direction to the vertical direction is 90 degrees, and a drawing fixing seat capable of fixing the other end of the Z-shaped hook is further arranged on the trunk rod body.

6. The auxiliary insulating tool for mounting and dismounting a three-phase short-circuit grounding wire according to claim 1, wherein: the length of the trunk rod body is 1000mm, the diameter is phi 30mm, and the trunk rod body is made of an epoxy resin hollow pipe.