An anti-dropping structure of a transmission line crane touch-line alarm device
A technology for power transmission lines and alarm devices, applied in safety devices, transportation and packaging, load hanging components, etc., can solve the problems of easy loosening and falling off, loss of alarm function, etc., and achieves simple operation, simple structure and low cost. Effect
Active Publication Date: 2016-08-24
STATE GRID CORP OF CHINA +1
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Problems solved by technology
Since the crane arm vibrates relatively strongly during operation and often touches various objects, the voltage detection unit of the transmission line is prone to loosening and falling off during the operation of the crane. The line alarm device may lose its alarm function, and the accident of the crane colliding with the high-voltage transmission line is more likely to occur
Method used
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[0014] Below the present invention will be further described in conjunction with the embodiment in the accompanying drawing:
[0015] Such as Figure 1~2 As shown, the present invention mainly includes a bottom case 1, on which two guide sleeves 3 are fixed, and the two guide sleeves 3 are arranged symmetrically. Each guide sleeve 3 is provided with a lower guide post 4 , the lower guide post 4 can slide up and down along the guide sleeve 3 , and the bottom end of the lower guide post 4 can extend out of the bottom shell 1 . The lower guide post 4 is provided with a lower positioning platform 5 .
[0016] The inner lower end of each guide sleeve 3 is provided with a limiting platform 11, and the limiting platform 11 can prevent the lower positioning platform 5 from protruding from the lower end of the guide sleeve 3.
[0017] An upper guide post 7 is provided at the upper end of each lower guide post 4 , and an upper positioning platform 8 is provided on the upper guide post...
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The invention relates to an anti-disengagement structure of a crane line-touching alarming device for a transmission line, in particular to a structure used for preventing looseness or disengagement of the crane line-touching alarming device after being installed on a crane arm, and belongs to the technical field of power supply equipment. The anti-disengagement structure of the crane line-touching alarming device for the transmission line comprises a bottom shell, a line-touching alarming circuit board is provided with two touch control buttons, and each touch control button makes contact with the upper end of an upper guide post in a pressed mode; the upper end of the bottom shell is connected with a housing, the line-touching alarming circuit board is wrapped with the housing, and the alarming circuit board is fixed with the housing through the pressing force of a spring in a pressed mode. According to the anti-disengagement structure of the crane line-touching alarming device for the transmission line, the structure is simple, compact and reasonable, operation is easy and convenient, and work is reliable; whether looseness or disengagement of the crane line-touching alarming device for the transmission line occurs or not can be effectively detected, and the occurrence of safety accidents can be effectively avoided; the cost is lower, and the anti-disengagement structure of the crane line-touching alarming device for the transmission line can be applied and popularized on a large range.
Description
technical field [0001] The invention relates to an anti-falling-off structure of a crane line-touching alarm device for a power transmission line, in particular a structure for preventing the crane line-touching alarm device from loosening or falling off after being installed on a crane arm, and belongs to the technical field of power supply equipment. Background technique [0002] With the development of society and the acceleration of urbanization, the construction scale of the supporting power grid has developed by leaps and bounds. Various types of cranes have played a very important role in the construction, especially truck cranes and tower cranes. Followed by more and more accidents caused by cranes. Among them, the collision of a crane with a high-voltage transmission line is a very serious accident. Once such an accident occurs, it will cause casualties and significant economic losses. [0003] At present, there are few types of transmission line crane collision al...
Claims
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IPC IPC(8): B66C15/06
CPCB66C15/06
Inventor 陆新秋潘继华苏晓蒋旭东钱磊孙明蔚吴鹏王德新白雪松
Owner STATE GRID CORP OF CHINA