Anti-falling protective device of aloft work through crawling ladder
A high-altitude operation and protection device technology, which is applied to ladders, buildings, building structures, etc., can solve the problems of death, unsuitability for composite insulator inspection operations, and large space occupation
Active Publication Date: 2017-05-31
TIANSHENGQIAO BUREAU CSG EHV POWER TRANSMISSION CO
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Problems solved by technology
The portable, applicable and durable ladders have no back-up protection device. The protective ladder has a protective net, but it is heavy and takes up a lot of space. It is not suitable for inspection of composite insulators of transmission lines at high altitudes.
Working at heights is a high-risk operation. If there is a mistake, it is very likely that the staff will fall from the height and cause death.
Method used
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[0026] The present invention will be further described below in conjunction with drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all content.
[0027] Please refer to Figure 1 to Figure 8 , a kind of anti-fall protection device for climbing ladders, which includes a protective clip 2, one side of the protective clip 2 is provided with an axial guide groove 21, and the guide groove 21 is used to clamp on the vertical rod 11 of the ladder 1, and the protection The other side of the clip 2 has a through hole 22 at the bottom of the guide groove 21;
[0028] Cam mechanism 3 is provided with in the through hole 22, and cam mechanism 3 is rotatably supported on the two sidewalls of through hole 22 ...
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The invention discloses an anti-falling protective device of aloft work through a crawling ladder. The anti-falling protective device comprises a protective clamp; an axial guiding groove is formed in one side face of the protective clamp and used for being clamped onto a vertical rod of the crawling ladder, a through hole is formed in the position, at the bottom of the guiding groove, of the other side face of the protective clamp, and a cam mechanism is installed in the through hole; the cam mechanism is rotatably supported on the two side walls of the through hole through a positioning shaft, the inner end of the cam mechanism downwards rotates along with the cam mechanism to protrude forwards the guiding groove, and the inner end of the cam mechanism upwards rotates along with the cam mechanism to contract towards the internal the through hole; a cavity is formed in one side wall of the guiding groove, a rotating wheel is supported in the cavity, and at least three spokes are installed on the outer circumferential face of the rotating wheel; and the outer ends of the spokes protrude into the guiding groove to limit the vertical rod of the crawling ladder to slide out from the guiding groove and are installed to be opposite to the cam mechanism. According to the anti-falling protective device, effective anti-falling protection is provided for a worker, and crawling ladder climbing is not hampered, so that crawling ladder aloft work is greatly convenient.
Description
technical field [0001] The invention relates to an anti-fall protection device for climbing ladders for high-altitude operations. Background technique [0002] With the increase in the number of composite insulators running on the grid, the inspection of composite insulators has also become a routine task. The inspection of composite insulators needs to work at high altitudes, and the tools used for climbing at high altitudes are mainly soft ladders, which are mainly divided into portable type, applicable type, durable type and protective type. The portable, applicable and durable ladders have no backup protection device. The protective ladder has a protective net, but it is heavy and takes up a lot of space. It is not suitable for inspection of composite insulators of transmission lines at high altitude. Working at heights is a high-risk operation. If there is a mistake, it is very likely that the staff will fall from the height and cause death. [0003] In view of this, ...
Claims
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IPC IPC(8): E06C7/18
CPCE06C7/18
Inventor 赵伟杨健李言武翟洪达孙同庆董军毛登辉何鹏唐静
Owner TIANSHENGQIAO BUREAU CSG EHV POWER TRANSMISSION CO