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PT handcart movement limiting mechanism

A limit mechanism and handcart technology, applied in switchgear, pull-out switch cabinets, electrical components, etc., can solve problems such as potential safety hazards and handcart safety accidents, and achieve better mechanical limit structure and mechanical limit Structurally reliable and permanently safe effect

Pending Publication Date: 2019-06-11
江苏大全封闭母线有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The handcart can move freely on the guide rails, and can be pulled out directly as long as necessary; however, as a key component of electrical equipment, safety accidents will occur if the handcart is not drawn out properly, and there are potential safety hazards, so it is necessary to set up a mechanism to restrict the free withdrawal of the handcart

Method used

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  • PT handcart movement limiting mechanism
  • PT handcart movement limiting mechanism
  • PT handcart movement limiting mechanism

Examples

Experimental program
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Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0017] Such as Figure 1-4 As shown, a PT handcart movement limit mechanism is set above the end of the limit beam 1 on both sides of the trolley, and is located at the entrance of the switch cabinet trolley;

[0018] The mechanism includes a limit bracket 2, a latch 3 and a screw 4. The limit bracket 1 is in the shape of a door, and a first pin hole (not shown in the figure) through which the pin is inserted is arranged on the crossbeam, and it faces the side of the handcart entrance. A limit slot 21 is set on the longitudinal beam; the screw 4 passes through the limit slot 21 and is vertically connected with the latch 3; the limit slot 21 limits the left and right, upper and lower positions of the screw 4, and the screw 4 is connected with the latch 3, thereby realizing Restriction on the position of the pin 3; corresponding to the position...

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PUM

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Abstract

The invention relates to a PT handcart movement limiting mechanism which is arranged above the end part of a limiting beam; the mechanism comprises a limiting bracket and a bolt, wherein the limitingbracket is in a door shape, and a first bolt hole for penetrating the bolt is formed in the beam of the limiting bracket; a second bolt hole is formed in the limiting beam corresponding to the orthographic projection position of the first bolt hole; and the pin penetrates through the first bolt hole and the second bolt hole and is inserted into the limiting beam to limit the movement of the PT handcart.

Description

technical field [0001] The invention relates to a movement limiting mechanism of a PT handcart. Background technique [0002] The handcart is the main part of the withdrawable switchgear, generally there are two kinds of PT handcart and switch (circuit breaker) handcart. The handcart is also called a trolley. Take the switch handcart as an example. When the switch is broken, it can be pulled out from the switch cabinet by hand after laying the guide rail for maintenance or replacement. [0003] The handcart can move freely on the guide rails, and can be pulled out directly as long as necessary; however, as a key component of electrical equipment, safety accidents will occur if the handcart is not drawn out properly, and there are potential safety hazards. Therefore, it is necessary to set up a mechanism to restrict the free withdrawal of the handcart. Contents of the invention [0004] The object of the present invention is to provide a PT handcart movement limit mechanis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B11/167
Inventor 叶纪林林泽江刘翔李国敏
Owner 江苏大全封闭母线有限公司