CN203193056U - Switch trolley grounding device - Google Patents

Switch trolley grounding device Download PDF

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Publication number
CN203193056U
CN203193056U CN 201320199003 CN201320199003U CN203193056U CN 203193056 U CN203193056 U CN 203193056U CN 201320199003 CN201320199003 CN 201320199003 CN 201320199003 U CN201320199003 U CN 201320199003U CN 203193056 U CN203193056 U CN 203193056U
Authority
CN
China
Prior art keywords
trolley
fixing bolt
switch
switch trolley
set bolt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN 201320199003
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Chinese (zh)
Inventor
袁永慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHINA COAL PINGSHUO GROUP CO LTD
Original Assignee
CHINA COAL PINGSHUO GROUP CO LTD
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHINA COAL PINGSHUO GROUP CO LTD filed Critical CHINA COAL PINGSHUO GROUP CO LTD
Priority to CN 201320199003 priority Critical patent/CN203193056U/en
Application granted granted Critical
Publication of CN203193056U publication Critical patent/CN203193056U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a switch trolley grounding device, which belongs to the technical field of mining flameproof high-voltage vacuum power distribution equipment, and mainly solves the problem that unreliable grounding is easily caused as a switch trolley in the prior art is grounded with a track by relying on trolley wheels. The switch trolley grounding device comprises a star-shaped contact fixing bolt (4) of a lower grounding wire of three piezoresistors (1) at the front end of the switch trolley (5) and a tile frame fixing bolt of a switching linkage mechanism. The switch trolley grounding device is characterized by further comprising a bare copper wire braided flexible cord (2), one end of the bare copper wire braided flexible cord (2) is connected with the star-shaped contact fixing bolt (4), and the other end is connected with the tile frame fixing bolt (3).

Description

Switch dolly earthing device
Technical field
The utility model belongs to flame-proof mine high pressure vacuum controller switching equipment technical field, is specifically related to switch dolly earthing device.
Background technology
The 482nd regulation of safety regulations in coal mine: voltage must have protective earthing at the above charging equipment of 36V, and switch dolly body ground connection inadequately fully, reliably in the flameproof high-voltage vacuum distribution equipment for mining that the down-hole is used.
Summary of the invention
The purpose of this utility model is to solve the problem that prior art exists, and switch dolly earthing device in the flameproof high-voltage vacuum distribution equipment for mining is provided.
The utility model is to solve the problems of the technologies described above the technical scheme of taking to be:
Switch dolly earthing device, comprise the star contact set bolt of earth connection under three piezo-resistances of switch dolly front end and watt frame set bolt of dolly divide-shut brake linkage, be characterized in: also comprise bare copper wire braiding flexible cord, described bare copper wire braiding flexible cord one end is connected with earth connection star contact set bolt, and the other end is connected with a watt frame set bolt.
The utility model compared with prior art has following beneficial effect:
The utility model has adopted bare copper wire braiding flexible cord directly watt frame set bolt of the earth connection on the switch dolly and divide-shut brake linkage to be coupled together, because the processing of the screw socket under this watt frame is on a parallels, this parallels and flameproof high-voltage vacuum distribution equipment for mining shell are affixed, thereby reach the effect of reliable ground.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1-piezo-resistance; 2-bare copper wire braiding flexible cord; 3-watt frame set bolt; 4-star contact set bolt; 5-switch dolly.
Embodiment
As shown in Figure 1, switch dolly earthing device, comprise the star contact set bolt 4 of 1 time earth connection of three piezo-resistances of switch dolly 5 front ends and watt frame set bolt 3 of divide-shut brake linkage, be characterized in: also comprise bare copper wire braiding flexible cord 2, described bare copper wire braiding flexible cord 2 one ends are connected with star contact set bolt 4, and the other end is connected with a watt frame set bolt 3.

Claims (1)

1. switch dolly earthing device, three piezo-resistances (1) that comprise switch dolly (5) front end are descended the star contact set bolt (4) of earth connection and watt frame set bolt (3) of divide-shut brake linkage, it is characterized in that: also comprise bare copper wire braiding flexible cord (2), described bare copper wire braiding flexible cord (2) one ends are connected with star contact set bolt (4), and the other end is connected with a watt frame set bolt (3).
CN 201320199003 2013-04-19 2013-04-19 Switch trolley grounding device Active CN203193056U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320199003 CN203193056U (en) 2013-04-19 2013-04-19 Switch trolley grounding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320199003 CN203193056U (en) 2013-04-19 2013-04-19 Switch trolley grounding device

Publications (1)

Publication Number Publication Date
CN203193056U true CN203193056U (en) 2013-09-11

Family

ID=49109886

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320199003 Active CN203193056U (en) 2013-04-19 2013-04-19 Switch trolley grounding device

Country Status (1)

Country Link
CN (1) CN203193056U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104167683A (en) * 2014-08-18 2014-11-26 国家电网公司 Armor-middle-mounted type metal sealed switch cabinet grounding device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104167683A (en) * 2014-08-18 2014-11-26 国家电网公司 Armor-middle-mounted type metal sealed switch cabinet grounding device

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C14 Grant of patent or utility model
GR01 Patent grant