Safety lock used for aloft work device and using method of safety lock

Abstract

The invention provides a safety lock used for an aloft work device and a using method of the safety lock. The safety lock used for the aloft work device comprises a lock body provided with a vertical through hole and a groove. A lock case is arranged outside the vertical through hole, and a lock cylinder is arranged inside the vertical through hole. The groove is formed in the lock cylinder side. A pendulum bob and an elastic element are arranged in an inner cavity of the groove. The groove comprises a V-shaped groove cavity which is formed by a waterproof chamfer, an upper groove plane, a spring fixing face and an oblique groove plane in an enclosure mode, the junction of the spring fixing face and the oblique groove plane is a fillet, and the end, with the swinging fulcrum, of the pendulum bob is located in the fillet. The safety lock provided by the invention is simple in structure; and through the design of the V-shaped groove structure and the waterproof chamfer and the protrusion design of the oblique plane, accumulation of water and dust residues can be effectively prevented, potential safety hazards, caused by erosion of water vapor and dust, of the safety lock are avoided fundamentally, the service life of the safety lock is prolonged greatly, frequent inspection and maintenance are not needed, and effective braking and locking functions can be ensured.

Description

technical field [0001] The invention belongs to a safety protection device. The invention specifically relates to a safety lock for a high-altitude operation device, and belongs to the technical field of high-altitude operation safety protection. Background technique [0002] Serious accidents of high-altitude operations include the sudden and rapid fall of high-altitude operation devices. Once such accidents occur, the consequences will be disastrous. Therefore, preventing the sudden fall of the high-altitude operation device is the basic requirement to ensure the safety of high-altitude operations, and relevant safety precautions have become necessary equipment for high-altitude operations, and safety locks are one of them. At present, there are two main types of safety locks used for high-altitude operations at home and abroad: swing arm type and centrifugal type. The internal structures of these two kinds of safety locks are relatively complicated, including a large num...

AI Technical Summary

Problems solved by technology

The internal structures of these two kinds of safety locks are relatively complicated, including a large number of return springs and bearings. Therefore, the failure rate is high and the reliability is low. Falling impurities will cause the lock body to be stuck, and emergency braking cannot be performed at critical moments, losing the safety protection function; moreover, the calibers of these two safety locks are usually fixed, and must be installed on the matching sling to be able to To play a role, a sling that is too thin cannot be locked, and a sling that is too thick cannot pass through the lock body. The versatility is not strong, and installation and maintenance are inconvenient

[0003] The existing technology that is closer to the present invention is the invention patent No. 201610284679.0 and the utility model patent No. 201620387923.1 applied on the same day. This invention solves the complex structure of the safety lock in the previous technology, which requires the diameter of the rope to be fixed and the power to support the preset. Braking parameters and other issues provide a safety lock structure with a moderate opening and closing sensitive braking distance. Certain requirements, often need to cooperate with the trigger device to make the slider throw out to form a brake. On the other hand, because water and oil stains are often attached to the rope, the chute in this structure is easy to accumulate water, oil, debris, etc. In turn, it will affect the overall braking effect. If it is not cleaned and maintained, it will cause safety problems

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