An anti-falling handcart crank assembly

Abstract

An anti-falling handcart crank assembly. It includes handles, handcart rocker arms, bearings, multiple vacuum suction cups and multiple support arms; the rear end of the handcart rocker arm is set outside the front end of the central shaft in the cabinet through a spring bayonet; the center hole on the inner ring of the bearing Set in the middle of the outer circumference of the rocker arm of the handcart; the handle is L-shaped, and one end is fixed on the outer circumference of the rocker arm of the handcart; multiple vacuum suction cups are adsorbed on the surface of the cabinet outside the central axis; each support arm One end is connected to a vacuum suction cup, and the other end is hinged on the outer circumferential surface of the bearing outer ring. The anti-drop-off handcart crank assembly provided by the present invention uses the joint action of the vacuum suction cup and the support arm to fix the handcart rocker horizontally, so that the rear end will not pop up or fall off during the shaking process, so the shaking can be ensured. The operation went smoothly. In addition, the component also has the advantages of reasonable structural design, simplicity, low cost, and easy operation.

Description

Technical field [0001] The invention belongs to the technical field of electric power maintenance equipment, and particularly relates to an anti-dropping handle component of a handcart. Background technique [0002] The trolley switch cabinet is an important power equipment in the substation, which is widely used in 35kV and 10kV voltage levels. The trolley switch cabinet has three positions of operation, test and maintenance. The switch between the operation position and the test position requires the operator to shake figure 1 The illustrated handle 1 on the handlebar of the handcart drives the rocker arm 2 of the handcart to rotate, and then the rear end of the rocker arm 2 of the handcart is connected to the rear end of the handcart rocker 2 through the spring latch 3 and the central shaft 5 located in the cabinet 4 rotates. When the trolley switch cabinet is in the running position, the moving contacts on it are connected with the static contacts on the busbar; when the trol...

AI Technical Summary

Problems solved by technology

However, during the switching process of the above two positions, the moving contact has to undergo a discharge or charging process, so the handle 1 of the handcart must be shaken and separated quickly and smoothly during the shaking process, otherwise it may cause the moving and static contacts to appear. burning problem

[0003] Because the handcart rocker arm 2 on some types of equipment is easy to loosen and fall off during the shaking process, the trolley switch cabinet cannot smoothly complete the operation process during the shaking in and out process, and the result will not only threaten the safety of the equipment It is safe to use, but it also brings inconvenience to the operation

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