Connection accessory capable of preventing breakage of cables

Abstract

The invention discloses a connection accessory capable of preventing breakage of cables, which comprises a connection casing, a closed rubber pipe, a press ring, a spring nut and a spring. The connection casing is provided with inner threads and outer threads, an inner hole is provided with a step, the spring nut is provided with a spring seat connected with the inner threads, and the spring is divided into a large-diameter section and a large-thread-pitch section. The closed rubber pipe and the press ring are inserted into the connection casing, the spring penetrates through the spring nut, and the spring nut together with the spring meshes with the outer threads on the connection casing. By the aid of the connection casing and the spring, stress concentration of root joints of the cables and electric connectors is alleviated effectively, original strength of the cables is maintained, the service lives of dynamic cables are prolonged, and work reliability of mobile electric equipment is guaranteed. Besides, the connection accessory is simple in structure and convenient in mounting and demounting.

Description

[0001] technical field [0002] The invention relates to the technical field of electrical connectors, in particular to a connection accessory for preventing cable breakage. Background technique [0003] In engineering applications, cables connected to electrical equipment through electrical connectors are divided into two situations, one is cables connected to fixed electrical equipment, usually called static cables, and the other is cables connected to fixed electrical equipment. The cables connected to the moving electrical equipment are usually called dynamic cables, and the dynamic cables will inevitably be bent and worn during use. During the working process of mobile electrical equipment, the cables need to undergo repeated bending, especially at the root of the connection between the cable and the electrical connector. Since the root of the connection is the most likely to cause stress concentration, under the action of alternating stress, the cable The strength...

AI Technical Summary

Problems solved by technology

During the working process of mobile electrical equipment, the cables need to undergo repeated bending, especially at the root of the connection between the cable and the electrical connector. Since the root of the connection is the most likely to cause stress concentration, under the action of alternating stress, the cable The strength of the root is greatly reduced, causing the insulation layer to be worn out and the wire core to be broken, which will affect the normal production order in the slightest and cause production accidents in severe cases

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