Automatic retraction type wire coil

Abstract

The invention discloses an automatic retraction type wire coil, comprising a wire coil body, wherein the wire coil body comprises a shell and a thread spool; a plurality of rings of cables are wound on the thread spool and a collecting ring is coaxially mounted at the center of the thread spool; one end of the cable is fixedly arranged on the thread spool and is conducted with the collecting ring, and the other end is a movable end; the movable end is electrically connected with a plug; a ratchet wheel mechanism is arranged between one end of the thread spool and the shell; the shell is provided with two contact pieces; the two contact pieces are tightly abutted against a peripheral wall of the collecting ring and are electrically conducted; the two contact pieces are electrically connected to a socket row; and a clockwork spring for providing driving force to retract the cable is arranged between the other end of the thread spool and the shell. According to the invention, by utilizing the ratchet wheel mechanism to control the stretching-out length of the thread spool and position, the phenomenon that the cable in the working field is disordered is reduced and the cable can be automatically rewound and retracted under the effect of the clockwork spring, so that the labor power is saved and the phenomenon of fixedly clamping and the like is further avoided; and therefore, the automatic retraction type wire coil is applicable to popularization and use.

Description

technical field [0001] The invention relates to an automatic retractable wire reel. Background technique [0002] In relay protection work, the working place is often far away from the on-site power supply, and additional power cord components are needed to obtain the working power supply. There is a hand-operated reel, which has two main disadvantages: first, when the wire is unwound , The force of pay-off is not easy to control, and often the reel rotates rapidly due to excessive force, resulting in too long pay-off; second, when taking up the wire, the wire is often stuck on the reel body due to improper operation, and it takes a lot of time to release the jam line, seriously affecting work efficiency. Contents of the invention [0003] The object of the present invention is to provide an automatic retractable wire reel with controllable length of the cable and capable of automatically retracting the cable. [0004] In order to solve the problems of the technologies d...

AI Technical Summary

Problems solved by technology

[0002]In relay protection work, the working place is often far away from the on-site power supply, and additional power cord components are needed to obtain the working power. There are two main disadvantages of the reel: first, when the wire is paid out, the power of the wire is not easy to control, and the reel is often rotated rapidly due to excessive force, resulting in too long wire; second, when the wire is taken up, it is often caused by the Improperly causing the wire to be stuck on the reel body, it takes a lot of time to remove the stuck wire, which seriously affects the work efficiency

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