A shaving appliance. It is a self-service tool, which is mostly used by adult men. Razors can be divided into safety razors, electric razors and mechanical razors according to their structure.

Safety razor: it is composed of a blade and a hoe shaped tool holder. The tool holder is made of aluminum, stainless steel, copper or plastic; The blade is made of stainless steel and carbon steel. In order to be sharp and durable, the cutting edge is mostly treated with metal or chemical coating. When in use, the blade is installed on the tool holder, and shaving can be carried out by holding the handle of the tool holder. There are two kinds of safety razors. One is to install a double-edged blade on the tool holder; The other is that two single blade blades are installed on the tool holder. When shaving with the former razor, the user needs to adjust the contact angle between the blade edge and the beard to ensure the shaving effect.

The handle of the latter tool holder is longer, and the blade is installed on the tool holder in parallel in upper and lower layers. During shaving, the head of the tool holder can rotate with the change of surface shape on the pivot on the upper part of the tool holder, so as to maintain a good shaving angle of the blade edge; Moreover, after the front blade pulls out the root of the beard, it is immediately cut off from the root by the rear blade. When shaving with this razor, it is cleaner and more comfortable than the previous one.

Electric shaver: the electric shaver is composed of stainless steel mesh cover, inner blade, micro motor and shell. The net cover is a fixed outer blade, which has many holes, and the beard can extend into the holes. The micro motor is driven by electric energy to drive the action of the inner blade, and the beard extending into the hole is cut off by using the shearing principle. Electric shavers can be divided into rotary and reciprocating according to the action characteristics of the inner blade. The power supply used includes dry battery, storage battery and AC charging.

Mechanical shaver: use the mechanical energy storage mechanism to drive the blade to shave. There are two types. One is equipped with a rotator inside, which uses the spring to store energy. When the spring is released, the rotator rotates at high speed to drive the blade to shave; The other is internally equipped with a gyroscope, which is wrapped with a stay wire. When the stay wire is pulled, the gyroscope will drive the blade for shaving.

Mechanical shaver: use the mechanical energy storage mechanism to drive the blade to shave. There are two types. One is equipped with a rotator inside, which uses the spring to store energy. When the spring is released, the rotator rotates at high speed to drive the blade to shave; The other is internally equipped with a gyroscope, which is wrapped with a stay wire. When the stay wire is pulled, the gyroscope will drive the blade for shaving.