CN223334032U - A grounding device for power outage maintenance - Google Patents
A grounding device for power outage maintenanceInfo
- Publication number
- CN223334032U CN223334032U CN202422289885.3U CN202422289885U CN223334032U CN 223334032 U CN223334032 U CN 223334032U CN 202422289885 U CN202422289885 U CN 202422289885U CN 223334032 U CN223334032 U CN 223334032U
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- grounding
- opening
- hook head
- rod body
- power outage
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Abstract
本实用新型公开了一种停电检修用接地装置，包括接地棒体和具有开口及容置腔的U形的钩头，容置腔内对称设置有两组由弹性装置驱动的舌片，钩头一侧通过地线连接装置连接接地软铜线，还包括过渡连接机构，过渡连接机构的上下两端分别与钩头和接地棒体可拆卸设置，且过渡连接机构与接地棒体转动连接，过渡连接机构内置有开口限位装置，过渡连接机构与接地棒体的相对转动驱动开口限位装置上升或下降，形成对钩头开口的封堵或开放。本实用新型能够利用增设的限位装置对双舌式接地棒的开口进行封闭，防止维护人员的误触碰导致双舌式接地棒的意外脱落，降低安全隐患。
The utility model discloses a grounding device for power outage maintenance, comprising a grounding rod body and a U-shaped hook head with an opening and a receiving cavity. Two groups of tongues driven by an elastic device are symmetrically arranged in the receiving cavity. One side of the hook head is connected to a grounding soft copper wire through a grounding wire connecting device. The utility model also includes a transition connection mechanism. The upper and lower ends of the transition connection mechanism are detachably arranged with the hook head and the grounding rod body, respectively, and the transition connection mechanism is rotatably connected to the grounding rod body. The transition connection mechanism is equipped with an opening limit device. The relative rotation of the transition connection mechanism and the grounding rod body drives the opening limit device to rise or fall, thereby blocking or opening the hook head opening. The utility model can use the additional limit device to close the opening of the double-tongue grounding rod, preventing the double-tongue grounding rod from accidentally falling off due to accidental touching by maintenance personnel, thereby reducing safety hazards.
Description
Technical Field
The utility model relates to an electric power overhaul tool, in particular to a grounding device for power failure overhaul.
Background
At present, in the maintenance and overhaul process of power equipment, according to the national electric power safety operation regulations, the grounding wire is required to be hung when the power transmission line is subjected to power failure overhaul so as to prevent residual charges on the line, sudden incoming calls of the line or induced electricity generated by an electrified line adjacent to the power failure line from damaging overhaul personnel. The grounding rod is the most commonly used grounding device, has the advantages of simple structure and convenient use, and is widely applied to the grounding scene of indoor or outdoor power equipment during power failure overhaul.
The prior grounding rod is mainly divided into a flat grounding rod, a hericium erinaceus type grounding rod and a double-tongue type grounding rod according to the clamping mode of a conductive part to be clamped.
The patent application number 202020123455.3, the name of a double-tongue type ground rod discloses a double-tongue type ground rod, including gib head and ground rod body, the gib head includes tongue piece, cantilever end, stiff end, earth wire ware, earth wire, wrapping post and connecting pipe, the cantilever end is located one side of gib head, the stiff end is located the opposite side of gib head, the tongue piece includes first tongue piece, second tongue piece, cavity, stopper, spring and fixture block. The problem that the ground rod is hard and poor with the earth conductivity when using can be solved to above-mentioned scheme, through the novel structure to the tongue piece, through seting up the cavity at cantilever end and stiff end top and bottom, the cavity sets up the spring for the slip reverse stress of tongue piece reduces when couple centre gripping wire, easy operation more, labour saving and time saving, after the operation is accomplished, because the characteristic of spring, makes the tongue piece can resume original position, the existence of stopper simultaneously makes the tongue piece can not pop out.
When the double-tongue type grounding rod is used, the hook sleeve is arranged on the outer side of a conductive part (such as a cable, a binding post and the like) to be clamped, then the grounding rod body is pulled inwards, the conductive part is clamped by two tongues arranged in the hook sleeve under the action of a spring, and when the double-tongue type grounding rod is disassembled, the grounding rod body is pushed outwards, so that the conductive part can be taken out from the two tongues. The double-tongue type grounding rod has a wider application range because the operation mode is relatively simpler.
However, because the double-tongue type grounding rod is simple to install and detach, the double-tongue type grounding rod has the defect of unexpected falling-off of the double-tongue type grounding rod caused by false touch in the use process, especially in application scenes with narrow spaces such as indoor space and high-voltage cabinet. For example, after grounding the connecting post in the high-voltage cabinet, if a maintainer touches the grounding rod body by mistake in the operation process (such as arm touch in the overhaul process and body touch in the turning process), the grounding rod body can move forwards, and if the principle of disassembling the double-tongue type grounding rod is consistent, the accidental falling of the double-tongue type grounding rod is very likely to be caused, and a great potential safety hazard exists.
On the other hand, the driving mode of the tongue piece in the existing part double-tongue type grounding rod is not reasonable enough, and the horizontal spring is connected with the tongue piece to be used as driving, so that the clamping effect of the double-tongue type grounding rod is still to be further improved.
Disclosure of utility model
The utility model aims to provide a grounding device for power failure overhaul, which can be used for sealing an opening of a double-tongue type grounding rod by utilizing an additionally arranged limiting device, so that accidental falling of the double-tongue type grounding rod caused by mistaken touch of maintenance personnel is prevented, and potential safety hazards are reduced.
The utility model adopts the following technical scheme:
The utility model provides a power failure overhauls uses earthing device, including the earthing rod body and have opening and holding chamber's U-shaped gib head, holding intracavity symmetry is provided with two sets of tongue pieces by resilient means drive, gib head one side is through ground wire connecting device connection ground connection annealed copper line, still include transition coupling mechanism, transition coupling mechanism's upper and lower both ends can dismantle the setting with gib head and earthing rod body respectively, and transition coupling mechanism rotates with earthing rod body to be connected, transition coupling mechanism embeds there is opening stop device, transition coupling mechanism and earthing rod body's relative rotation drive opening stop device rise or descend, form shutoff or the opening to the gib head opening.
The transition connection mechanism comprises a hollow shell, wherein a guide through hole with the outer end inclined upwards is formed in one side of an opening of the shell adjacent to the hook head, the opening limiting device comprises a lifting part and a blocking part which are connected with each other, the lifting part ascends or descends along with the relative rotation of the shell and the grounding rod body, and the blocking part extends outwards or is recovered inwards into the shell along with the ascending or descending of the lifting part through the guide through hole.
The upper end of the transition connecting mechanism is sleeved outside the fixed end of the hook head and is connected with the hook head through a locating pin.
The lifting part is positioned in the shell and is rotationally connected with the upper end of the threaded rod.
The lower part of the shell of the transition connecting mechanism is provided with a connecting plate, the middle part of the connecting plate is provided with a threaded hole, the upper end of the grounding rod body is provided with a threaded rod, and the grounding rod body is in threaded connection with the transition connecting mechanism through the threaded rod and the threaded hole.
The upper end of the threaded rod is a polished rod, a limit groove is formed in the polished rod along the circumferential direction, and the lifting part is arranged in the limit groove and is rotationally connected with the polished rod.
The plugging part adopts a plugging plate, the lower end of the plugging plate is fixedly connected with one side of the lifting part close to the opening of the hook head, and the upper end of the plugging plate is positioned in the guide through hole.
The plugging plate is an elastic metal plugging plate.
The hanging end of the hook head is provided with a slot which is matched with the plugging plate.
The inner wall of the hook head is provided with a tongue piece movable cavity, the lower end of the tongue piece is hinged with the tongue piece movable cavity, a torsion spring is arranged between the bottom wall of the tongue piece movable cavity and the middle part of the tongue piece, the torsion spring drives the upper end of the tongue piece to move towards the middle part of the tongue piece movable cavity, and the middle parts of the two tongue pieces are correspondingly provided with conductive part limiting structures.
The utility model utilizes the additionally arranged transitional connecting mechanism, drives the opening limiting device to ascend or descend through the relative rotation of the transitional connecting mechanism and the grounding rod body to form the blocking or opening of the hook head, and can prevent the situation that the double-tongue grounding rod accidentally drops due to the false touch of maintenance personnel;
The upper end and the lower end of the transition connecting mechanism are respectively detachably arranged with the hook head and the grounding rod body, so that the maintenance and the replacement of parts are facilitated.
The utility model has simple structure, strong practicability, easy processing and production and low production cost. Meanwhile, the utility model can be realized by adding the transition connection mechanism on the basis of the existing double-tongue type grounding rod, and the grounding rod body with the threaded rod is completely consistent with the grounding rod body structure in the existing flat-mouth type grounding rod, so that the use cost of enterprises is greatly reduced. The utility model has simple operation, safety and reliability, and can not only realize reliable blocking of the opening of the hook head, but also ensure effective electric connection between the conductive part and the hook head or the elastic metal blocking plate under the accidental falling state of the double-tongue type grounding rod, and ensure the grounding effect after the elastic metal blocking plate is abutted against the inner side of the overhanging end of the hook head, thereby avoiding potential safety hazard.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the hook head with the opening open;
FIG. 3 is a schematic view of the structure of the present utility model when the hook head opening is plugged;
FIG. 4 is a schematic view of the structure of the hook head according to the present utility model;
FIG. 5 is a schematic view of the connection structure between the housing and the threaded rod according to the present utility model;
Fig. 6 is a schematic view of a connection structure of the present utility model through a connection plate, a housing and a threaded rod.
Detailed Description
The utility model is described in detail below with reference to the attached drawings and examples:
As shown in fig. 1 to 6, the grounding device for power failure overhaul comprises a grounding rod body 1 and a U-shaped hook head 2, wherein an opening 3 for a conductor (such as a cable, a binding post and the like) to be clamped to pass through is formed in the lower part of the hook head 2, the fixed end 2-2 and the hanging end 2-1 of the hook head 2 are respectively arranged on two sides of the opening 3 of the hook head 2, a containing cavity 5 for arranging tongue pieces 4 to clamp the conductor to be clamped is formed in the hook head 2, two groups of tongue pieces 4 driven by elastic devices are symmetrically arranged in the containing cavity 5, and the two tongue pieces 4 can be driven by the elastic force of the elastic devices to clamp the conductor to be clamped. One side of the hook head 2 is connected with a ground annealed copper wire through a ground wire connecting device 6 so as to form a conductor to be clamped, the hook head 2, the ground wire connecting device 6 and the ground annealed copper wire which are communicated with a ground wire clamp, and the ground effect is achieved.
In order to prevent the situation that the double-tongue type grounding rod accidentally drops due to the false touch of maintenance personnel, the utility model is additionally provided with the transition connecting mechanism 7, the upper end of the transition connecting mechanism 7 is detachably arranged with the fixed end 2-2 of the hook head 2, the lower end of the transition connecting mechanism 7 is detachably arranged with the grounding rod body 1, and the maintenance and the replacement of components are facilitated. In the embodiment, the upper end of the transition connecting mechanism 7 is sleeved outside the fixed end 2-2 of the hook head 2 and is connected through the locating pin 8, so that the connection is stable and the disassembly is convenient.
Meanwhile, the transition connecting mechanism 7 is also rotationally connected with the grounding rod body 1, the purpose of rotational connection is to provide driving force for an opening limiting device arranged in the transition connecting mechanism 7, and the opening limiting device is driven to ascend or descend by the relative rotation of the transition connecting mechanism 7 and the grounding rod body 1, so that the opening 3 of the hook head 2 is finally blocked or opened. When the grounding operation is carried out, the opening 3 of the hook head 2 is in an open state, so that a conductor to be clamped conveniently enters the accommodating cavity 5, after the grounding operation is finished, maintenance personnel drive the opening limiting device to ascend through the forward (or reverse) rotation of the grounding rod body 1, the opening 3 of the hook head 2 is in a blocking state, accidental falling of the double-tongue grounding rod is prevented, and when the grounding rod needs to be taken down, the opening limiting device is driven to descend through the reverse (or forward) rotation of the grounding rod body 1, so that the opening 3 of the hook head 2 is in an open state again, and the grounding rod is taken out.
The cooperation structure of the transition connection mechanism 7 and the opening limiting device can be realized in various existing modes. In consideration of possible electrified working scenes and operation convenience of circuits, the transitional connecting mechanism 7 comprises a hollow shell, a guide through hole 9 with the outer end inclined upwards is formed in one side of the shell adjacent to the opening 3 of the hook 2, the opening limiting device comprises a lifting part 10 and a blocking part 11 which are connected with each other, the lifting part 10 ascends or descends along with the relative rotation of the shell and the grounding rod body 1, and the blocking part 11 extends outwards through the guide through hole 9 along with the ascending or descending of the lifting part 10 to block the opening 3 of the hook 2 or is recovered inwards into the shell through the guide through hole 9 to open the opening 3 of the hook 2. The guide through hole 9 can provide an operation channel for the movement of the blocking portion 11, and can guide the movement direction of the blocking portion 11, so that the blocking portion 11 can block the opening 3 of the hook head 2 according to a set track.
As shown in fig. 5, a connecting plate 13 can be arranged at the lower part of the shell of the transition connecting mechanism 7, a threaded hole is arranged in the middle of the connecting plate 13, and a threaded rod 12 is arranged at the upper end of the grounding rod body 1, so that the grounding rod body 1 and the transition connecting mechanism 7 are finally connected through the threaded rod 12 and the threaded hole in a threaded manner.
As shown in fig. 6, an internal thread 14 can also be provided directly in the interior of the housing of the transitional coupling 7 for a threaded connection with the threaded rod 12.
The lifting part 10 is positioned in the shell of the transition connecting mechanism 7 and is rotationally connected with the upper end of the threaded rod 12, and the transition connecting mechanism 7 is detachably connected with the grounding rod body 1 and rotationally connected with the threaded rod 12.
In order to realize that the plugging portion 11 only moves upwards and downwards along with the lifting portion 10, in this embodiment, the upper end portion of the threaded rod 12 is a polished rod 15, a limit groove is circumferentially arranged on the polished rod 15, and the lifting portion 10 can be an annular lifting portion and is rotatably connected with the polished rod 15 in the limit groove. At this time, the threaded rod 12 cooperates with the connection plate 13 provided with the threaded hole, essentially creating the effect of a screw. For the purpose of enabling the lifting part 10, the threaded rod 12 and the connecting plate 13 to be matched to form a reciprocating screw rod, in the embodiment, the plugging part 11 is a plugging plate, the lower end of the plugging plate is fixedly connected with one side of the lifting part 10 close to the opening 3 of the hook head 2, and the upper end of the plugging plate is positioned in the guide through hole 9. At this time, the lifting part 10 has the effect of a screw nut, and the plugging plate and the guide through hole 9 cooperate to have the effect of a guide rod, so that the plugging part 11 is lifted synchronously with the lifting of the lifting part 10, and the plugging part 11 is driven to extend outwards or retract inwards through the guide through hole 9.
Considering the plugging effect, in this embodiment, the plugging plate is an elastic metal plugging plate, and abuts against the inner side of the overhanging end 2-1 of the hook head 2 after the plugging plate extends to the limit position, so as to form the plugging effect. The upper end of the elastic metal plugging plate is provided with an extension part so as to prevent the elastic metal plugging plate from being fully recovered into the shell. In this embodiment, the guiding through hole 9 may be disposed obliquely, and the upper end of the guiding through hole points to the overhanging end 2-1 of the hook head 2 to further limit the movement direction of the elastic metal plugging plate, and a slot adapted to the plugging plate may be further disposed on the overhanging end 2-1 of the hook head 2. The plugging plate is guided by the guide through holes 9 to extend outwards, and the top end of the plugging plate finally enters the slot, so that the stability of plugging the opening 3 is further enhanced.
The elastic device for driving the tongue piece 4 to act in the existing part double-tongue type grounding rod adopts a horizontally transverse spring, and the spring is connected with the middle part of the tongue piece 4, and the clamping and resetting effects of the tongue piece 4 are poor due to the arc-shaped movement track of the tongue piece 4. According to the utility model, the inner wall of the hook head 2 is provided with the tongue piece movable cavity, the lower end of the tongue piece 4 is hinged with the tongue piece movable cavity, the torsion spring 16 is arranged between the bottom wall of the tongue piece movable cavity and the middle part of the tongue piece 4, the upper end of the tongue piece 4 is driven by the torsion spring 16 to move towards the middle part of the tongue piece movable cavity, the movement track of the tongue piece 4 can be further adapted, a better driving effect is achieved, and therefore the clamping and resetting effects of the tongue piece 4 are further enhanced. In this embodiment, the middle parts of the two tongue pieces 4 are correspondingly provided with a conductive part limiting structure 17, so as to enhance the limiting effect on the clamped conductive body. The conducting part limiting structure 17 can adopt an anti-skid pattern arranged in the middle of the tongue piece 4, and can also adopt a corresponding arc-shaped structure as shown in the attached drawing.
In the utility model, the hook head 2 is die-cast by using cooked aluminum, and has high hardness, good electric conductivity and oxidation resistance.
According to the utility model, the grounding annealed copper wire matched with the grounding annealed copper wire is made of the anaerobic red copper wire as a conductor and stranded, so that the grounding annealed copper wire has the advantages of small resistance, stable conductivity and difficulty in heating, and the transparent insulating layer is sleeved outside the grounding annealed copper wire, so that the abrasion of the grounding annealed copper wire in the use process can be effectively prevented, and the personal safety of maintenance personnel is ensured. The end of the ground annealed copper wire is provided with a double-hole copper nose connecting end, and is formed by integrally forming red copper, so that the ground annealed copper wire is not easy to deform. The ground wire connecting device 6 is matched with a double-hole copper nose connecting end of the end part of the ground annealed copper wire, and adopts a double-bolt connecting device.
In the utility model, the grounding rod body 1 is manufactured by adopting epoxy resin glass fiber yarns for pultrusion, and has good insulativity. The lower part of the grounding rod body 1 is provided with an insulating plastic handle 18 with anti-skid patterns, so that the insulating performance is further improved.
The utility model has simple structure, strong practicability, easy processing and production and low production cost. Meanwhile, the utility model can be realized by adding the transition connecting mechanism 7 on the basis of the existing double-tongue type grounding rod, and the grounding rod body 1 with the threaded rod 12 is completely consistent with the grounding rod body 1 in the existing flat-mouth type grounding rod in structure, so that the use cost of enterprises is greatly reduced. The utility model drives the opening limiting device to ascend or descend by utilizing the relative rotation of the transition connecting mechanism 7 and the grounding rod body 1 to form the blocking or opening of the opening 3 of the hook head 2, is simple in operation, safe and reliable, and can realize the reliable blocking of the opening 3 of the hook head 2 and ensure the effective electric connection of the conductive part and the hook head 2 or the elastic metal blocking plate under the accidental falling state of the double-tongue grounding rod after the elastic metal blocking plate is abutted against the inner side of the overhanging end 2-1 of the hook head 2, thereby avoiding potential safety hazards.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422289885.3U CN223334032U (en) | 2024-09-19 | 2024-09-19 | A grounding device for power outage maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422289885.3U CN223334032U (en) | 2024-09-19 | 2024-09-19 | A grounding device for power outage maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223334032U true CN223334032U (en) | 2025-09-12 |
Family
ID=96976084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422289885.3U Active CN223334032U (en) | 2024-09-19 | 2024-09-19 | A grounding device for power outage maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223334032U (en) |
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2024
- 2024-09-19 CN CN202422289885.3U patent/CN223334032U/en active Active
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