Gas-insulated switchgear, and interlocking device of grounding switch and cable chamber door of gas-insulated switchgear

A technology of grounding switch and interlocking device, which is applied in the direction of switchgear, setting of switchgear, air switch parts, etc., to achieve the effect of avoiding electric shock accidents and unlocking of interlocking device

Pending Publication Date: 2022-05-13
PINGGAO GRP
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an interlocking device for the grounding switch of the inflatable cabinet and the cable compartment door, so as to solve the problem in the prior art that the interlocking device of the cable compartment door has been unlocked while the grounding switch is not in place; The purpose is also to provide an inflatable cabinet to solve the above problems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gas-insulated switchgear, and interlocking device of grounding switch and cable chamber door of gas-insulated switchgear
  • Gas-insulated switchgear, and interlocking device of grounding switch and cable chamber door of gas-insulated switchgear
  • Gas-insulated switchgear, and interlocking device of grounding switch and cable chamber door of gas-insulated switchgear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The inflatable cabinet adopts a slow-operating grounding mechanism. During the closing process of the grounding switch, the drive shaft 10 of the grounding switch is first driven to store energy. brake action. Because the energy storage process is slow, it is called a slow-operating grounding mechanism. The specific opening and closing structure of the grounding mechanism with slow operation is the prior art, and will not be described in detail here. Such as figure 1 with figure 2As shown, the cabinet body 190 of the inflatable cabinet has a cable room with a cable room door, and a three-position switch is installed in the cabinet body 190 of the inflatable cabinet. Moving mechanism 180. Wherein, the spring operating mechanism 180 includes a grounding switch drive shaft 10, and a worm gear 170 is installed on the grounding switch drive shaft 10, and the worm gear 170 is connected with a worm (not shown in the figure).

[0062] An interlocking device is also instal...

Embodiment 2

[0074] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the locking disc 20 is a circular disc. However, in this embodiment, the locking disc 20 is a sector disc. At this time, the arc side of the sector disc forms an arc stop surface 21 , and the space on the end surface of the sector disc forms an avoidance space.

Embodiment 3

[0076] The difference between this embodiment and Embodiment 1 lies in that in Embodiment 1, the upper end surface of the locking pin 30 has a spherical structure, and the engagement groove 22 is connected with the arc stop surface 21 in an arc transition. In this embodiment, however, the upper end surface of the locking pin 30 has a spherical structure, or the locking groove 22 is connected with the circular arc stop surface 21 in an arc transition.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a gas-insulated switchgear, a grounding switch of the gas-insulated switchgear and an interlocking device of a cable chamber door, the interlocking device comprises a locking pin arranged along the radial direction of a grounding switch driving shaft, and a linkage mechanism arranged between the locking pin and the cable chamber door; the interlocking device further comprises a locking disc fixed to the grounding switch driving shaft, and the locking disc is provided with a switching-off corresponding position corresponding to the switching-off position of the grounding switch and a switching-on corresponding position corresponding to the switching-on position of the grounding switch in the rotating stroke. The outer circumferential surface of the locking disc is provided with an arc blocking surface for limiting the locking pin, an avoiding space is arranged on the locking disc and located on the circumferential side of the arc blocking surface, and the avoiding space is used for being centered with the locking pin when the locking disc is located at the closing corresponding position so as to relieve limiting of the locking pin, so that the cable chamber door is unlocked. Compared with the prior art, the problem that an interlocking device of a cable chamber door is unlocked when a grounding switch is not closed in place in the prior art can be solved.

Description

technical field [0001] The invention belongs to the technical field of inflatable cabinets, and in particular relates to an interlocking device for a grounding switch and a cable chamber door of an inflatable cabinet. Background technique [0002] For the inflatable cabinet, according to the five-proof interlock requirements of the GB / T3906 standard, the grounding switch cannot be opened when the cable room door is opened, and the grounding switch can only be opened when the cable room door is closed. In addition, only The door of the cable compartment can only be opened when the grounding switch is in the closed state. [0003] Most of the operating mechanisms of the three-position switch are slow operating mechanisms. Specifically, the grounding switch is operated slowly through the grounding operation shaft when the switch is closed, and the grounding switch can be kept at any position during the operation. During the grounding operation of the three-position switch, the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01H31/06H02B13/045H02B13/075
CPCH01H31/06H02B13/075H02B13/045
Inventor 娄源通卢健冯祥伟康博王海燕朱彦卿朱志豪费翔张永辉翟停停李军辉
Owner PINGGAO GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap