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Handcart type switch cabinet crank

A handcart-type switch and handle technology, which is applied to pull-out switch cabinets, switch devices, switch device components, etc., can solve the problems of difficult operation and easy misoperation, and achieve the effect of convenient operation and improved labor productivity.

Active Publication Date: 2018-01-19
国网河南省电力公司社旗县供电公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the object of the present invention is to address the deficiencies of the prior art and provide a handcart type switch cabinet crank, which solves the problem of difficult operation in the prior art, especially the problem of easy misoperation

Method used

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  • Handcart type switch cabinet crank
  • Handcart type switch cabinet crank
  • Handcart type switch cabinet crank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 , 2 As shown in and 3, a handcart switch cabinet crank includes a handle 1, a rocker arm 3 and a crank head, the handle 1 is provided with a rubber grip 2, and the crank head includes a sleeve device 7, a constant torque device 6 , planetary gear mechanism 8 and two-way ratchet mechanism 5.

[0031] The sleeve structure includes a guide ring 72 and a sleeve mouth 71; the guide ring 72 is a circular tube, and the inner wall of the circular tube is provided with an arc groove 73, such as image 3 As shown, the size of the arc-shaped groove 73 gradually decreases along the arc from outside to inside until the tail ends of each side of the arc-shaped groove 73 shrink at the corner end of the square groove of the sleeve mouth 71; the guide ring 72 is fixedly connected with sleeve port 71.

[0032] The constant torque device 6 includes an outer wheel 61, a positioning pin 62 and an inner wheel 63. The outer wheel 61 is provided with a circular groove, and ...

Embodiment 2

[0041] The overall structure of this embodiment is similar to that of Embodiment 1, and the method of operation is the same, and the difference is that: Figure 5 As shown, at least one pair of arc-shaped protrusions 74 are arranged in the sleeve opening 71 , and a spring 75 is arranged under the arc-shaped protrusions 74 . This setting can ensure that the sleeve opening 71 is more closely connected with the square force-bearing part of the handcart switch, preventing it from falling off accidentally.

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Abstract

The invention discloses a handcart type switch cabinet crank and relates to the technical field of power supply equipment. The handcraft type switch cabinet crank comprises a handle, a rocker and a crank head, and the crank head comprises a sleeve unit, a constant torque unit, a planetary gear train mechanism and a bidirectional ratchet mechanism. By the arrangement, problems about difficulties inoperation and especially about proneness to misoperation in an existing technology are solved.

Description

technical field [0001] The invention relates to the technical field of power supply equipment, in particular to a crank handle of a handcart type switch cabinet. Background technique [0002] The trolley switchgear is an important power equipment in the substation, and it is widely used in 35kV and 10kV voltage level switchgear. The handcart is the main part of the central withdrawable switchgear, generally there are two kinds of PT handcart and 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. It may be called a handcart because it can be pulled out by hand and its shape is similar to a cart. The main components on the handcart include primary electrical equipment such as circuit breakers and transformers. The trolley switchgear has three positions: operation, test and maintenanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B11/02H02B11/167
Inventor 王伟石岩焦玉振王欢雷震毛锋姜军张春惠东军李红阳张菲
Owner 国网河南省电力公司社旗县供电公司
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