Telescopic device and control method thereof

Abstract

The invention provides a telescopic device and a control method thereof. The telescopic device comprises telescopic columns, the telescopic columns are arranged in multiple stages, the telescopic columns are mutually sleeved, and anti-falling mechanisms are arranged between the telescopic columns; power devices which are arranged in multiple stages, the power devices are arranged in the telescopic columns, and the power devices are suitable for driving the telescopic columns to stretch out or retract step by step; and heavy load locking structures which are arranged at the joints of the telescopic columns of the adjacent stages and used for limiting the telescopic columns of various stages from retracting downwards. Compared with the prior art, the heavy load locking devices are arranged between the telescopic columns, so that every two telescopic columns are mutually locked, the telescopic columns can be directly borne, and the situation that the power devices are damaged due to the fact that the telescopic columns are borne only through the power devices is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of load-bearing telescopic columns, in particular, to a telescopic device and a control method thereof. Background technique [0002] In the prior art, the multi-stage telescopic outriggers only rely on multi-stage telescopic oil cylinders to extend the telescopic outriggers at all levels and lock them with heavy loads through the hydraulic system. There is no bearing device, and the hydraulic system completely bears the load on the telescopic outriggers. Heavy load, when the hydraulic system is in the long-term load state, or when the load capacity is too large, there is a risk of pipe burst in the hydraulic system and hydraulic oil leakage, which will cause the telescopic outriggers to lose their load capacity, which will cause a series of safety hazards and seriously affect personal safety. Safety. Contents of the invention [0003] The problem to be solved by the invention is how to ensure the reliabi...

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Problems solved by technology

[0002] In the prior art, the multi-stage telescopic outriggers only rely on multi-stage telescopic oil cylinders to extend the telescopic outriggers at all levels and lock them with heavy loads through the hydraulic system. There is no bearing device, and the hydraulic system completely bears the load on the telescopic outriggers. Heavy load, when the hydraulic system is in the long-term load state, or when the load capacity is too large, there is a risk of pipe burst in the hydraulic system and hydraulic oil leakage, which will cause the telescopic outriggers to lose their load capacity, which will cause a series of safety hazards and seriously affect personal safety. Safety

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