Zero self-locking device for linkage platform

Abstract

The invention relates to a zero self-locking device for a linkage platform and belongs to the technical field of designing a handle mechanism of a crane linkage control platform. The zero self-locking device for the linkage platform comprises a handle and a handle head, wherein the handle head arranged on the handle comprises upper and down two hemispheres; the upper hemisphere is fixed with the handle; the upper end of the lower hemisphere is provided with a spring, a positioning rod and a positioning plate arranged on the lower end of the positioning rod; the positioning plate is provided with a positioning hole; the upper end of the positioning rod is provided with a raised port, which is matched with a spiral slide wall in the lower hemisphere; and after being rotated, the lower hemisphere is fixed at the lifting position, and when the lower hemisphere is released, the lower hemisphere does not drop off but is locked at the lifting state. Under the condition of ensuring the original property of a handle operation mechanism, a selective rotating device is skillfully added, thereby maintaining the zero self-locking function, being capable of choosing to abandon the zero self-locking function, relieving the labor intensity of operator, avoiding damage to the system by detaching mechanisms, and achieving the ideal effect of humanized design.

Description

technical field [0001] The invention relates to a zero-position self-locking device of a linkage platform, which belongs to the field of handle mechanism design of a crane linkage console. Background technique [0002] The linkage console is widely used in complete sets of electrical equipment for cranes, and is the core part of the electrical control system. It is installed in the driver's cab of the crane. The operator directly manipulates the linkage console, drives the cam to open or close the electrical contacts through mechanical transmission, and controls the contactor in the power distribution cabinet to realize the starting, shifting and braking of the motor. Lifting equipment is designed for safety, reliability and stable operation. The function of the zero position self-locking button on the top of the existing linkage console operating handle is to ensure that when the handle is in the vertical position (ie zero position), the button locks the positioning rod at...

AI Technical Summary

Problems solved by technology

However, during normal operation, the operator feels uncomfortable and very tired when pressing the button for a long time

As a result, the operator takes improper measures to forcibly jam the button or remove the button, causing the internal connection parts to fall off, resulting in the failure of the entire operating system to operate normally.

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