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CS6-type knife operating handle shift pin

A technology of knife switch operation and handle shaft, which is applied in the field of electric power system, can solve the problems of knife switch misoperation, falling off, five-proof locking pin and operation handle pin moving outward, so as to avoid friction and collision, long mechanical life, and mechanical high intensity effect

Inactive Publication Date: 2017-10-31
WEIHAI WENDENG POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There is friction between the retaining ring of the shaft pin of the operating handle of the CS6 type knife switch and the nut that is installed later to fix the five-proof locking pin. During operation, the retaining ring of the shaft pin of the operating handle is likely to fall off, and the nut that fixes the five-proof locking pin is loose. The five-proof locking pin and the operating handle pin are moved outward, resulting in insufficient insertion stroke, prone to misoperation of the knife switch, violation of the requirements of the regulations, and easily leading to vicious accidents such as closing with a grounding wire

Method used

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  • CS6-type knife operating handle shift pin
  • CS6-type knife operating handle shift pin
  • CS6-type knife operating handle shift pin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 As shown, a CS6-type knife switch operating handle shaft pin includes a pin rod 1, and one end of the pin rod 1 is provided with a boss 2, and the boss is provided with a notch with a straight section, and the axis center distance The vertical distance of the notch section is 0.25~0.5 times the length of the outer diameter of the boss, such as figure 1 As shown, the position of the notch section does not exceed the position of the axis of the pin rod, the thickness of the boss is 3~5mm, and the inner surface of the boss 2 is provided with anti-slip lines; the other end of the pin rod is provided with a spiral The card slot 3, the card slot is provided with a retaining spring 4 (circling spring such as image 3 shown in ), the outer diameter of the circlip is 0.5-1mm larger than that of the pin rod, and the circlip is also provided with a turning handle 4a.

[0025] The boss in this embodiment is cylindrical, and the notch depth of the boss is 0.23-0...

Embodiment 2

[0027] Such as figure 2 As shown, in this embodiment, relative to Embodiment 1, an introduction body 5 is provided on the pin rod on the side of the card slot to facilitate the insertion of the shaft pin into the pin hole. The end face of the pin rod is fixedly connected, the introduction body 5 is arranged coaxially with the pin rod 1, the angle between the side of the conical introduction body and the axis of the pin rod is 15°~20°, and the diameter 5 of the bottom surface of the introduction body is equal to the The diameter of the pin rod 1, in addition to the advantages in embodiment 1, this embodiment has an introduction body that is convenient for the shaft pin to be inserted into the pin hole because the end face of the pin rod on the side of the slot is provided with a truncated circular structure. The lower bottom surface of the body is fixed to the end surface of the pin rod, which can help the shaft pin to be easily inserted into the pin hole during use.

Embodiment 3

[0029] Such as image 3As shown, in this embodiment, relative to Embodiment 1, an introduction body 5 is provided on the pin rod on one side of the card slot to facilitate the insertion of the shaft pin into the pin hole. The end face of the pin rod is fixedly connected, the introduction body 5 is arranged coaxially with the pin rod 1, the angle between the side of the conical introduction body and the axis of the pin rod is 15°~20°, and the diameter 5 of the bottom surface of the introduction body is larger than the above-mentioned The diameter of the pin rod 1, in addition to the advantages in embodiment 1, the present embodiment has an introduction body that facilitates the insertion of the shaft pin into the pin hole because the end face of the pin rod on the side of the slot is provided with an introduction body. The introduction body 5 is a conical structure, The lower bottom surface of the introduction body is fixed to the end surface of the pin rod. First, it can help ...

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PUM

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Abstract

The invention relates to a CS6-type knife operating handle shift pin. The CS6-type knife operating handle shift pin comprises a pin rod, wherein a boss is arranged at one end of the pin rod, a gap with a cross section being in a linear shape is formed in an edge of the boss, the vertical distance between an axis and the cross section of the gap is 0.25-0.5 time of the length of an external diameter of the boss, a position where the cross section of the gap is located does not exceed a position where the axis of the pin rod is located, the thickness of the boss is 3-5 millimeters, anti-slip lines are arranged on an inner surface of the boss, a spiral clamping groove is formed in a rod body at the other end of the pin rod, a clamping spring is arranged in the clamping groove, the external diameter of the clamping spring is larger than the external diameter of the pin rod by 0.5-1 millimeter, and a rotation handle is also arranged on the clamping spring. By the CS6-type knife operating handle shift pin, an equipment accident caused by failure of fire-prevention shunting due to falling of a CS6-type knife operating handle shift pin baffle ring of a substation and lossening of a five-prevention shunting pin fixing nut can be effectively prevented.

Description

technical field [0001] The invention relates to the field of electric power systems, in particular to a special shaft pin which improves the function of a CS6 type knife switch operating handle anti-misoperation locking device. Background technique [0002] The anti-misoperation locking device is an important equipment for substations to prevent the "five types" of misoperations. A reliable anti-misoperation locking device is an important guarantee for the safe and stable operation of people, power grids and equipment. "Eighteen Major Power Grid Anti-Accident Measures of the State Grid Corporation" pointed out that high-voltage switchgear should choose products with complete "five defenses" functions. The "State Grid Corporation Electric Power Safety Work Regulations" also clearly stipulates that all high-voltage electrical equipment should be equipped with perfect anti-misoperation locking devices. And it has a perfect function of anti-misoperation locking device. If it do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H3/02H01H21/22
CPCH01H3/02H01H21/22
Inventor 郭辉王卫东杨宗志张文模张友海林波苏红福李向志张江兵柳力维林海龙
Owner WEIHAI WENDENG POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO