Locking screw sleeve

Abstract

The invention provides a locking threaded sleeve, comprising an inner threaded sleeve and an outer threaded sleeve. The inner threaded sleeve is sleeved with the outer threaded sleeve; an axial elastic reset mechanism and a circumferential limiting mechanism are arranged on the matching face of the outer threaded sleeve and the inner threaded sleeve; a screwing structure is arranged on the inner threaded sleeve; the circumferential limiting mechanism comprises a plurality of key groove structures which are evenly distributed in the circumferential direction and are in sliding fit in the axial direction; the key groove structures are arranged on the outer threaded sleeve and the inner threaded sleeve, respectively; when the screwing structure and a butt joint end are screwed in place, the key groove structures are staggered till only the ends are engaged, rotation continues to be performed in the screwing direction, and the key groove structures rotate relatively in the circumferential direction under the action of an end guiding structures and are staggered and interfered periodically. According to the locking threaded sleeve, when butt joint and screwing are in place, auditory sense and touch sense recognition functions are achieved, blind insertion operation is more convenient and reliable, meanwhile, it is guaranteed that the screwing torque is proper, the connection reliability is improved, and the mechanical life of the locking threaded sleeve is prolonged.

Description

technical field [0001] The invention belongs to the technical field of connectors, and in particular relates to a locking screw sleeve. Background technique [0002] With the integrated development of system equipment, its volume is getting smaller and smaller, and the internal space is reduced accordingly, and then the line of sight is blocked. As a key component in the system, the installation and docking operations of electrical connectors are thus more difficult. However, most of the commonly used threaded connectors can only be judged by the human eye to observe the marks on the connector. Once the line of sight is blocked, it will not be possible to judge whether the connector is connected in place, and the role of the screw sleeve is mainly used for loosening. For example, the Chinese patent with the publication number CN211320503U provides a radio frequency coaxial connector with a screw sleeve locking and anti-vibration structure. The screw sleeve and the lock nut ...

AI Technical Summary

Problems solved by technology

However, most of the commonly used threaded connectors can only be judged by the human eye to observe the marks on the connector. Once the line of sight is blocked, it will not be possible to judge whether the connector is connected in place, and the function of the screw sleeve is mainly used for loosening. For example, the Chinese patent with the publication number CN211320503U provides a radio frequency coaxial connector with a screw sleeve locking and anti-vibration structure. The screw sleeve and the lock nut are locked positively and reversely. To prevent the threaded sleeve and the socket from falling off, in the state where visual observation is impossible, the screwing in place can only be done by hand feeling, which may easily cause the thread to be screwed too tightly and cause wear, resulting in serious consequences such as redundant objects

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