Height-adjustable crane guardrail

Abstract

The invention discloses a height-adjustable crane guardrail which comprise a pillar fixed to a bottom plate, wherein a fixing guardrail part is arranged at the upper end of the pillar, and is in a rectangular frame structure; sliding rails are arranged at the left and right inner walls of the fixing guardrail part; sliding blocks are arranged on the sliding rails; a cross rod is arranged between the sliding blocks; a plurality of stop rods arranged in a spaced manner are fixed at the upper end of the cross rod; the stop rods penetrate through the upper end of the fixing guardrail part and is connected with a lifting rod at the upper end of the fixing guardrail part; a plurality of rectangular grooves are uniformly formed in the two stop rods positioned at the outer sides; dead locking devices matched with the rectangular grooves are arranged at the upper end of the fixing guardrail part; and a plurality of auxiliary stop rods are arranged at the lower end of the cross rod, and penetrate through the lower end of the fixing guardrail part to extend into grooves of the pillar. The height-adjustable crane guardrail is simple in structure, reasonable in design and convenient to use; the height of the height-adjustable crane guardrail can be adjusted freely; the requirement on the protection height is met; the safe fixing function is exerted; and the height-adjustable crane guardrail is applicable to various working occasions of various cranes.

Description

Technical field [0001] The invention relates to the field of cranes, in particular to a height-adjustable crane guardrail. Background technique [0002] The crane is an important mechanical lifting equipment with a wide range of applications. Therefore, it is very important whether the crane can be operated in a safe and standard manner. The protection of the crane platform is also very important. At present, the method of installing protective fences around the crane is adopted. The crane platform is protected. However, the existing crane guardrail structure is very complicated, and the height of the guardrail cannot be adjusted freely, and the scope of use is single. Therefore, it provides a simple structure, reasonable design, safe, reliable, and free The height-adjustable crane guardrail is very necessary. Summary of the invention [0003] The object of the present invention is to provide a height-adjustable crane guardrail to solve the problems raised in the background art. ...

AI Technical Summary

Problems solved by technology

[0002] Crane is an important mechanical lifting equipment with a wide range of applications. Therefore, it is very important whether the crane can be operated in a safe and standardized manner. It is also very important to protect the crane platform. At present, it is used to install guardrails around the crane. The platform of the crane is protected. However, the existing crane guardrail structure is very complicated, and the height of the guardrail cannot be adjusted freely, and the scope of use is single. Therefore, it is necessary to provide a simple structure, reasonable design, safe and reliable. It is very necessary to adjust the height of the crane guardrail

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