Anti-rotating connection structure

Abstract

The invention relates to an anti-rotating connection structure. According to the connection structure, a connection rod is assembled in an assembling hole of a fixing casing of the connection structure in a rotating and anti-dropping mode, a screwing operation cap is arranged at the upper end of the connection rod in a protruding mode, protruding keys are arranged along the circumference of the upper end surface of the fixing casing at intervals and located on the axis of the connection rod at the center of the circumference, an anti-rotating rod is assembled in a sliding groove arranged on the screwing operation cap in a sliding mode, the lower end of the anti-rotating rod is capable of extending into a gap between two adjacent protruding keys, an anti-dropping cap is fixedly arranged at the upper end of the anti-rotating rod, a locking hole and an unlocking hole which are radially communicated with the sliding groove are arranged at two ends of the sliding groove on the screwing operation cap, a locking end surface is arranged on the wall of the locking hole and is in stopping fit with the anti-dropping cap after the lower end of the anti-rotating rod extends into the gap between the two protruding keys, an unlocking end surface is arranged on the wall of the unlocking hole and is in stopping fit with the anti-dropping cap when the lower end of the anti-rotating rod is higher than the protruding keys, and a pressing spring is arranged between the lower end surface of the screwing operation cap and the anti-rotating rod and enables the anti-dropping cap to be in pressing fit with the locking end surface or the unlocking end surface.

Description

technical field [0001] The invention relates to a connecting structure with the function of locking two mutually rotating parts to prevent relative rotation thereof, which belongs to a mechanical structure. Background technique [0002] Threaded connection is a simple, reliable, and easy-to-operate connection structure, which is used in many fields. However, threaded connection also has certain disadvantages, that is, when used in a vibration environment, the threaded connection is easy to loosen. In order to prevent the thread from loosening, many anti-loosening structures have appeared, such as elastic gaskets and cotter pins. Suitable for all occasions. Later, the use of an additional fuse structure to achieve relative fixation between the screwed part and the fixed housing, in order to achieve the function of anti-loosening of the thread, this structure has wide adaptability, as long as the two threaded parts are fixed at different positions A movable structure is enou...

AI Technical Summary

Problems solved by technology

[0002] Threaded connection is a simple, reliable, and easy-to-operate connection structure, which is used in many fields. However, threaded connection also has certain disadvantages, that is, when used in a vibration environment, the threaded connection is easy to loosen.

In order to prevent the thread from loosening, many anti-loosening structures have appeared, such as elastic gaskets and cotter pins. suitable for all occasions

Later, the use of an additional fuse structure to achieve relative fixation between the screwed part and the fixed housing, in order to achieve the function of anti-loosening of the thread, this structure has wide adaptability, as long as the two threaded parts are fixed at different positions The movable structure is enough, but this method also has its disadvantages. On the one hand, there needs to be enough space to install the fuse. On the other hand, when it needs to be rotated and separated, the operation of removing the fuse is more troublesome.

This kind of fuse structure will not be able to meet the requirements in the occasion where the two bodies need to be separated quickly after being combined.

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