CN210957031U

CN210957031U - High-voltage apparatus overhauls and establishes device with earth connection string

Info

Publication number: CN210957031U
Application number: CN201922283316.7U
Authority: CN
Inventors: 李伟; 杨新志; 徐长福
Original assignee: China Yangtze Power Co Ltd
Current assignee: China Yangtze Power Co Ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-07-07
Anticipated expiration: 2029-12-18

Abstract

A grounding wire hanging device for high-voltage equipment maintenance comprises an insulating handle, wherein the insulating handle is of a hollow rod-shaped structure, an opening is formed in one side of the insulating handle close to the top of the insulating handle, a static contact which penetrates through the opening and extends outwards is arranged on one side of the top surface of the insulating handle above the opening, a movable block is arranged in the insulating handle, a movable contact corresponding to the static contact is arranged on one side of the movable block, the movable contact also penetrates through the opening and extends outwards, and a grounding head which penetrates through the insulating handle is arranged on the other side of the movable block; an insulating push rod is arranged on the bottom surface of the insulating handle, the lower end of the insulating push rod is in contact with an eccentric wheel arranged in the insulating handle, a ratchet wheel is further arranged in the insulating handle, the ratchet wheel and the eccentric wheel are concentrically arranged on the same fixed shaft, a torsion spring is arranged between the fixed shaft and the ratchet wheel as well as between the fixed shaft and the eccentric wheel, and a swing rod corresponding to the ratchet wheel penetrates through the side wall of the insulating handle. Adopt above-mentioned structure, can overcome traditional ground wire and hang the section of establishing and waste time and energy and hang the problem of establishing the quality and varying from person to person, guarantee to connect the steadiness.

Description

High-voltage apparatus overhauls and establishes device with earth connection string

Technical Field

The utility model relates to a high-tension apparatus overhauls device field, specific is a high-tension apparatus overhauls and establishes device with earth connection string.

Background

At present, before the high-voltage equipment is overhauled in a power failure mode, the ground wire needs to be hung at a corresponding position to guarantee personal safety, after the high-voltage equipment is overhauled, the ground wire hung at the corresponding position needs to be detached, the traditional ground wire hanging end mainly depends on manual rotating threads to fix the ground point between the moving contact and the static contact, time and labor are wasted in operation in a limited space, and the hanging point is easy to disengage in the rotating process. Moreover, the contact fastening degree between the grounding point and the movable and static contacts is greatly influenced by human factors, and the personal safety is not facilitated.

Disclosure of Invention

The utility model aims to solve the technical problem that a high-tension apparatus overhauls and hangs with earth connection and establishes the device is provided, can overcome traditional earth connection and hang that to establish the section waste time and energy and hang the problem of establishing the quality from person to person, guarantee to connect the steadiness.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a grounding wire hanging device for high-voltage equipment maintenance comprises an insulating handle, wherein the insulating handle is of a hollow rod-shaped structure, an opening is formed in one side of the insulating handle close to the top of the insulating handle, a static contact which penetrates through the opening and extends outwards is arranged on one side of the top surface of the insulating handle above the opening, a movable block is arranged in the insulating handle, a movable contact corresponding to the static contact is arranged on one side of the movable block, the movable contact also penetrates through the opening and extends outwards, and a grounding head which penetrates through the insulating handle is arranged on the other side of the movable block;

the bottom surface of the insulating handle is provided with an insulating push rod, the lower end of the insulating push rod is in contact with an eccentric wheel arranged in the insulating handle, a ratchet wheel is further arranged in the insulating handle, the ratchet wheel and the eccentric wheel are concentrically arranged on the same fixed shaft, a torsion spring is arranged between the fixed shaft and the ratchet wheel as well as between the fixed shaft and the eccentric wheel, and a swing rod corresponding to the ratchet wheel penetrates through the side wall of the insulating handle.

In the preferred scheme, a non-return pawl matched with the ratchet wheel is arranged in the insulating handle, and an active pawl matched with the ratchet wheel is arranged on the swing rod.

In a preferable scheme, a first shifting piece is arranged on the part of the oscillating rod, which is positioned outside the insulating handle, the first shifting piece penetrates through the oscillating rod and is connected with the oscillating rod through a first pin shaft, one end of the first shifting piece is connected with a first traction rope, one end of the first traction rope is fixed on one end of the first shifting piece, and the other end of the first traction rope is connected to the driving pawl.

In the preferred scheme, the non-return pawl and the active pawl are arranged in a central symmetry mode, a fixing rod is arranged on the outer wall of the other side wall, opposite to the side wall of the insulating handle, where the swing rod is located, a second poking piece is arranged on the fixing rod, penetrates through the fixing rod and is connected with the swing rod through a second pin shaft, one end of the second poking piece is connected with a second traction rope, one end of the second traction rope is fixed to one end of the second poking piece, and the other end of the second traction rope is connected to the non-return pawl.

In the preferred scheme, the insulating handle lateral wall on be equipped with the pilot lamp, be equipped with the power on the insulating handle inner wall, one of them electrode of pilot lamp passes through the wire and is connected with one of them electrode of power, another electrode of pilot lamp passes through the wire and is connected with the contact that sets up on the insulating handle inside wall, also is equipped with the contact on another electrode of power, the contact on the power sets up downwards.

In an optimal scheme, the insulating push rod is provided with a conductive block, and the maximum distance between the conductive block and the contact piece is equal to the maximum distance between the fixed contact and the movable contact.

In the preferred scheme, the insulating handle inside still be equipped with the fixed block, insulating push rod passes the fixed block setting, is located the cover and is equipped with the spring on the insulating push rod between movable block and the fixed block.

The utility model provides a high-tension apparatus overhauls and establishes device with earth connection string, through adopting above-mentioned structure, has following beneficial effect:

(1) the movable contact can be driven only by repeatedly shifting the oscillating bar to drive the ratchet wheel to rotate, so that clamping and fixing between the movable contact and the fixed contact are ensured, the fixing stability is improved, and the condition of looseness is avoided;

(2) after clamping, the circuit where the indicator lamp is located is electrified through the conductive block, so that whether the clamping purpose is achieved can be observed by observing whether the indicator lamp is turned on;

(3) when the device needs to be dismounted, the limitation on the ratchet wheel is relieved by the driving ratchet and the non-return pawl only by shifting the first shifting piece and the second shifting piece, the ratchet wheel can automatically reset under the action of the torsion spring, and the resetting operation is simple.

Drawings

The invention will be further explained with reference to the following figures and examples:

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

Fig. 2 is a detailed structural diagram of the position of the ratchet wheel according to the present invention. (eccentric wheel not mounted)

Fig. 3 is a detailed structure diagram of the position of the indicator light of the present invention.

In the figure: the device comprises an insulating handle 1, a fixed contact 101, an opening 102, a movable block 2, a movable contact 201, a grounding head 202, a fixed block 3, an eccentric wheel 4, an insulating push rod 5, a ratchet wheel 6, a swing rod 7, a conductive block 8, an indicator lamp 9, a power supply 10, an active pawl 11, a non-return pawl 12, a first shifting piece 13, a second shifting piece 13 ', a first pin shaft 14, a second pin shaft 14 ', a first traction rope 15, a second traction rope 15 ', a contact piece 16, a spring 17 and a fixed rod 18.

Detailed Description

As shown in fig. 1, a ground wire hanging device for high-voltage equipment maintenance includes an insulating handle 1, the insulating handle 1 is a hollow rod-shaped structure, an opening 102 is provided at a position close to a top of one side of the insulating handle 1, a static contact 101 passing through the opening 102 and extending outward is provided at one side of a top surface of the insulating handle 1 above the opening 102, a movable block 2 is provided in the insulating handle 1, a movable contact 201 corresponding to the static contact 101 is provided at one side of the movable block 2, the movable contact 201 also passes through the opening 102 and extends outward, and a ground contact 202 passing through the insulating handle 1 is provided at the other side of the movable block 2;

the bottom surface of the insulating handle 1 is provided with an insulating push rod 5, the lower end of the insulating push rod 5 is in contact with an eccentric wheel 4 arranged in the insulating handle 1, a ratchet wheel 6 is further arranged in the insulating handle 1, the ratchet wheel 6 and the eccentric wheel 4 are concentrically arranged on the same fixed shaft, a torsion spring is arranged between the fixed shaft and the ratchet wheel 6 as well as between the fixed shaft and the eccentric wheel 4, and a swing rod 7 corresponding to the ratchet wheel 6 penetrates through the side wall of the insulating handle 1.

In the preferred scheme, a non-return pawl 12 matched with the ratchet wheel 6 is arranged inside the insulating handle 1, and an active pawl 11 matched with the ratchet wheel 6 is arranged on the swing rod 7.

In a preferred scheme, as shown in fig. 2, a first pulling piece 13 is arranged on a portion of the oscillating rod 7 located outside the insulated handle 1, the first pulling piece 13 penetrates through the oscillating rod 7 and is connected with the oscillating rod 7 through a first pin 14, a first pulling rope 15 is connected to one end of the first pulling piece 13, one end of the first pulling rope 15 is fixed to one end of the first pulling piece 13, and the other end of the first pulling rope 15 is connected to the driving pawl 11.

In a preferred scheme, as shown in fig. 2, the non-return pawl 12 and the driving pawl 11 are arranged in a central symmetry manner, a fixing rod 18 is arranged on the outer wall of the other side wall opposite to the side wall of the insulating handle 1 where the swing rod 7 is located, a second shifting piece 13 'is arranged on the fixing rod 18, the second shifting piece 13' penetrates through the fixing rod 18 and is connected with the swing rod 7 through a second pin shaft 14 ', one end of the second shifting piece 13' is connected with a second traction rope 15 ', one end of the second traction rope 15' is fixed on one end of the second shifting piece 13 ', and the other end of the second traction rope 15' is connected to the non-return pawl 12.

In a preferred scheme, as shown in fig. 3, an indicator lamp 9 is arranged on the outer side wall of the insulated handle 1, a power supply 10 is arranged on the inner wall of the insulated handle 1, one electrode of the indicator lamp 9 is connected with one electrode of the power supply 10 through a wire, the other electrode of the indicator lamp 9 is connected with a contact 16 arranged on the inner side wall of the insulated handle 1 through a wire, a contact 16 is also arranged on the other electrode of the power supply 10, and the contact 16 on the power supply 10 is arranged downwards.

In a preferred scheme, as shown in fig. 3, the insulating push rod 5 is provided with a conductive block 8, and a maximum distance between the conductive block 8 and the contact piece 16 is equal to a maximum distance between the fixed contact 101 and the movable contact 201.

In a preferred scheme, as shown in fig. 1, a fixed block 3 is further arranged inside the insulating handle 1, an insulating push rod 5 penetrates through the fixed block 3, and a spring 17 is sleeved on the insulating push rod 5 located between the movable block 2 and the fixed block 3.

By adopting the structure, before the maintenance operation, the moving contact 201 is moved upwards by manually repeatedly operating the swing rod 7, the fixing of the device is realized by the matching of the moving contact 201 and the static contact 101, and then the grounding wire is connected to the grounding joint 202;

after the overhaul operation is completed and the device needs to be dismounted, the first shifting piece 13 and the second shifting piece 13' are manually shifted simultaneously, so that the driving pawl 11 and the non-return pawl 12 simultaneously remove the limitation on the ratchet wheel 6, the ratchet wheel 6 rotates back by 90 degrees under the action of the torsion spring, and finally the state shown in the figure 1 is achieved, at the moment, the movable contact 201 is separated from the static contact 101, and the dismounting action of the device is completed.

By adopting the structure, the movable contact can be driven only by repeatedly stirring the swing rod to drive the ratchet wheel to rotate, so that the movable contact and the fixed contact are clamped and fixed, the stability of fixation is improved, and the condition of looseness is avoided; after clamping, the circuit where the indicator lamp is located is electrified through the conductive block, so that whether the clamping purpose is achieved can be observed by observing whether the indicator lamp is turned on; when the device needs to be dismounted, the limitation on the ratchet wheel is relieved by the driving ratchet and the non-return pawl only by shifting the first shifting piece and the second shifting piece, the ratchet wheel can automatically reset under the action of the torsion spring, and the resetting operation is simple.

Claims

1. The utility model provides a high-tension apparatus overhauls and establishes device with earth connection string, includes insulating handle (1), characterized by: the insulating handle (1) is of a hollow rod-shaped structure, an opening (102) is formed in one side of the insulating handle (1) close to the top of the insulating handle, a static contact (101) which penetrates through the opening (102) and extends outwards is arranged on one side of the top surface of the insulating handle (1) above the opening (102), a movable block (2) is arranged in the insulating handle (1), a movable contact (201) corresponding to the static contact (101) is arranged on one side of the movable block (2), the movable contact (201) also penetrates through the opening (102) and extends outwards, and a grounding head (202) which penetrates through the insulating handle (1) is arranged on the other side of the movable block (2);

the bottom surface of the insulating handle (1) is provided with an insulating push rod (5), the lower end of the insulating push rod (5) is in contact with an eccentric wheel (4) arranged in the insulating handle (1), a ratchet wheel (6) is further arranged in the insulating handle (1), the ratchet wheel (6) and the eccentric wheel (4) are concentrically arranged on the same fixed shaft, a torsion spring is arranged between the fixed shaft and the ratchet wheel (6) and between the fixed shaft and the eccentric wheel (4), and a swing rod (7) corresponding to the ratchet wheel (6) penetrates through the side wall of the insulating handle (1).

2. The grounding wire hanging device for overhauling high-voltage equipment as claimed in claim 1, is characterized in that: the inner part of the insulating handle (1) is provided with a non-return pawl (12) matched with the ratchet wheel (6), and the swing rod (7) is provided with an active pawl (11) matched with the ratchet wheel (6).

3. The grounding wire hanging device for overhauling high-voltage equipment as claimed in claim 2, is characterized in that: the part of the swing rod (7) located outside the insulating handle (1) is provided with a first shifting piece (13), the first shifting piece (13) penetrates through the swing rod (7) and is connected with the swing rod (7) through a first pin shaft (14), one end of the first shifting piece (13) is connected with a first traction rope (15), one end of the first traction rope (15) is fixed to one end of the first shifting piece (13), and the other end of the first traction rope (15) is connected to the driving pawl (11).

4. The grounding wire hanging device for overhauling high-voltage equipment as claimed in claim 3, wherein: the non-return pawl (12) and the driving pawl (11) are arranged in a central symmetry mode, a fixing rod (18) is arranged on the outer wall of the other side wall opposite to the side wall of the insulating handle (1) where the swing rod (7) is located, a second poking piece (13 ') is arranged on the fixing rod (18), the second poking piece (13') penetrates through the fixing rod (18) and is connected with the swing rod (7) through a second pin shaft (14 '), one end of the second poking piece (13') is connected with a second traction rope (15 '), one end of the second traction rope (15') is fixed to one end of the second poking piece (13 '), and the other end of the second traction rope (15') is connected to the non-return pawl (12).

5. The grounding wire hanging device for overhauling high-voltage equipment as claimed in claim 1, is characterized in that: insulating handle (1) lateral wall on be equipped with pilot lamp (9), be equipped with on insulating handle (1) inner wall power (10), one of them electrode of pilot lamp (9) passes through the wire and is connected with one of them electrode of power (10), another electrode of pilot lamp (9) passes through the wire and is connected with contact (16) of setting on insulating handle (1) inside wall, also be equipped with contact (16) on another electrode of power (10), contact (16) on power (10) set up down.

6. The grounding wire hanging device for overhauling high-voltage equipment as claimed in claim 5, wherein: the insulating push rod (5) is provided with a conductive block (8), and the maximum distance between the conductive block (8) and the contact piece (16) is equal to the maximum distance between the static contact (101) and the movable contact (201).

7. The grounding wire hanging device for overhauling high-voltage equipment as claimed in claim 1, is characterized in that: insulating handle (1) inside still be equipped with fixed block (3), insulating push rod (5) pass fixed block (3) and set up, be located insulating push rod (5) between movable block (2) and fixed block (3) and go up the cover and be equipped with spring (17).