Novel transmission device and shaver

Abstract

The invention provides a novel transmission device, and relates to a shaver. The novel transmission device comprises a cutting assembly installed in a head of the shaver, a single-stage transmission device and a driving motor installed in a handle of the shaver, wherein the driving motor directly drives the single-stage transmission device to rotate, and the single-stage transmission device drivesthe cutting assembly above to rotate and performs cutting. The invention further provides the shaver. According to the novel transmission device, the single-stage transmission device is arranged at the head, no transmission assembly is arranged inside the handle, the single-stage transmission device is directly driven by a motor gear on the motor, and then a cutter head in a cutter net is drivento rotate. Besides, a motor shaft directly penetrates the handle to enter the head, so that a size of a connecting part of the head and the handle is small, meanwhile, double-layer waterproof isolation is conducted on a clearance hole between the motor shaft and a boss and on a bolt mounting position of a machine body upper shell, and the waterproof effect is better. The shaver is excellent in holding feeling, large in appearance difference, simple in structure, high in production efficiency, low in cost and good in waterproof effect.

Description

technical field [0001] The invention relates to the technical field of razors, in particular to a novel transmission device and a razor. Background technique [0002] In a traditional shaver, the first-stage transmission device and the second-stage transmission device are arranged on the top of the handle, and the two-stage transmissions are connected through double gears. A shaver with a waterproof function uses a waterproof partition to waterproof and isolate the electrical components in the handle, and the power transmission is coupled with two or more wheel shafts passing through the waterproof partition and the moving cutter head. The structural form of the traditional razor determines that the connecting part between the head and the handle is relatively large, the appearance of the product is limited, and the grip is not good. In particular, the sealing of the axle and the hole matched with it not only requires high precision of the parts, but also has a complex stru...

AI Technical Summary

Problems solved by technology

Secondly, nylon and glass fiber are used, and nylon is water-absorbent, and the surface of nylon with glass fiber is rough, which is not the best choice for high-precision transmission parts. Not suitable for exterior parts

In addition, because the accuracy of the gear mounting holes is difficult to guarantee, during assembly and use, the wear is aggravated and the center distance of the gear installation is increased, resulting in excessive noise when the product is in use

In addition, this kind of scheme requires a coupling structure between the first-stage transmission device and the second-stage transmission device. The disadvantage is that the coupling structure needs to be equipped with parts including steel shafts, coupling blocks, couplings, springs, etc.

It not only takes up space, increases cost, is difficult to assemble, has low production efficiency, but also has disadvantages such as power reduction; at the same time, there are also disadvantages such as large volume of the connecting part between the cutter head and the handle, poor grip, small difference in shape, and unattractive appearance And the assembly is complicated and the production efficiency is low

Images