Speed-reduction wire winder and dust collector thereof

Abstract

The invention discloses a speed-reduction wire winder and a dust collector thereof. The speed-reduction wire winder comprises a wire winding mechanism and a speed-reduction mechanism, wherein the wirewinding mechanism comprises a wire winding roller for winding an electric wire; the wire winding roller is movably connected with a support through a rotary shaft; the speed-reduction mechanism comprises a brake disc in transmission connection with the wire winding roller; the brake disc rotates synchronously along with the wire winding roller; a sunk circular pit is arranged on the support; thebrake disc is located in the circular pit; a brake disc cover covers an opening part of the circular pit; a brake pad is elastically connected onto the brake disc; and the radial outward moving distance of the brake pad and the rotating speed of the brake disc are in positive correlation until the brake pad and the circular pit or the brake disc cover are in contact friction. By adopting the speed-reduction wire winder provided by the invention for controlling the speed of the wire winding roller, the wire winding speed is controlled, and the occurrence of the phenomenon that parts are damageddue to excessive high speed is prevented. A centrifugal force is utilized for braking and reducing speed, so that the characteristic of automatic working is realized, and a speed-reduction effect aims at adapting to different speeds of the wire winding roller. The integrated manufacturing cost is low, and the structure is ingenious.

Description

technical field [0001] The invention relates to the field of wire take-up structures of vacuum cleaners, in particular to a speed-reducing wire reel and a vacuum cleaner thereof. Background technique [0002] Household appliances are generally connected with a power cord. In order to facilitate the storage of the power cord when not in use, some power cords are equipped with a cord reel. The existing conventional cord reel utilizes the elastic force of the coil spring to drive the cord reel to rotate, so as to achieve the winding effect of the power cord. But there are at least two disadvantages in this way of taking up the wire: during the reset process, the inertia of the coil spring is getting bigger and bigger, resulting in faster and faster take-up speed, and the power plug will be thrown at the take-up mouth every time, making the power supply The inner wire of the plug is easy to disconnect; the fast speed of the wire is easy to throw and hurt the user. Therefore, i...

AI Technical Summary

Problems solved by technology

But there are at least two disadvantages in this way of taking up the wire: during the reset process, the inertia of the coil spring is getting bigger and bigger, resulting in faster and faster take-up speed, and the power plug will be thrown at the take-up mouth every time, making the power supply The internal wire of the plug is easy to disconnect; the speed of winding up the wire is fast and it is easy to hurt the user

So it is necessary to limit the speed when the power line is retracted

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