Pliers are a tool that we often use in our daily lives, so how do pliers support?

Pliers are often used in daily life, that is, some construction, and repair some of the door locks and household appliances, etc., it has this physical nature.

Pliers are a tool that we often use in our daily life, and the pliers use the principle of levers, which are cross-connected together with pins at a point in the middle. Make the ends move relative to each other.

Pliers are frequently used tools, and the support of pliers is the handle of pliers. The steel bar is burned red, and the worker puts the red steel bar on the forming filling mold all the time.

Scissors , nail clippers, tweezers, eyebrow clips can play the role of pliers. The shape of the pliers is V-shaped, and usually consists of three parts: the handle, the gills and the jaws.

Pliers are generally made of carbon structural steel, which is first forged and rolled into a pliers shape, then subjected to metal cutting such as grinding and milling, polishing, and finally heat treated.

The basic principle of pliers is to use two levers, at a point in the middle, with pins to cross together, so that the two ends can move relatively, as long as the end is operated by hand, the other end can be pinched. In order to reduce the force used by the user when operating, according to the principle of lever in mechanics, the clamp handle is usually longer than the clamp head, so that a stronger clamping force can be obtained with a smaller force to meet the use requirements.

Scissors, nail clippers, etc.

Look at what you clamp. You can use scissors for large things, and if the things are soft, wrap the scissors in cloth.

The little thing is nail clippers.

Look at what you clip, tweezers too, eyebrow clips for eyebrows, the most practical is our fingers, haha.

Answer]: C Functional fixation refers to the fact that individuals tend to only see the usual functions of a certain macro thing in the chain book when solving problems, and do not see the functions that it may have in other aspects.

Pliers function: used for clamping, fixing and processing workers' stool congratulatory parts or twisting, bending, cutting metal wires, etc.

Using pliers is operated with the right hand. Place the jaws facing inward to facilitate the control of the cutting part of the pliers, and use the little finger to reach between the two handles to resist the handles, and open the head of the pliers, so that the handles are flexibly separated. The knife edge of the pliers can be used to cut the rubber or plastic insulation of flexible wires.

The knife edge of the pliers can also be used to cut wires and wires. When cutting No. 8 galvanized iron wire, the blade should be used to cut back and forth around the surface a few times, and then only need to pull lightly, and the wire will break. The guillotine can also be used to cut hard metal wires such as wires and steel wires.

The insulating plastic pipe of the pliers has a voltage resistance of more than 500V, with which it can cut wires with electricity. Do not litter during use to avoid damage to the insulated plastic pipe. Do not use pliers as hammers.

Do not use pliers to cut double-strand live wires, it will be short-circuited. When wrapping the clamp with pliers to fix the thick type of cable, the tooth mouth of the pliers clamps the wire and winds it in a clockwise direction. (Photo by Wen Changpai:.)

Cao Bo) @2019

Using two levers, at a point in the middle, the pins are crossed together, so that the two ends can move relative to each other, and as long as the end end is operated by hand, the other end can be pinched.

In order to reduce the force used by the user when operating, according to the principle of lever in mechanics, the clamp handle is usually longer than the clamp head, so that a stronger clamping force can be obtained with a smaller force to meet the requirements of use.

(1) The pattern engraved on the handle is to increase the roughness of the contact surface to increase the friction when the pressure is constant, and it is not easy to slip off

2) The jaws are thin, which is to reduce the force area to increase the pressure when the pressure is constant, and it is easy to cut the object

3) According to the power of the power arm = resistance resistance arm, the power arm is larger than the resistance arm, and the power is less than the resistance, which is a labor-saving lever

4) The greater the force, the easier it is to shear, indicating that the greater the force, the easier it is to change the shape of the object, so the effect of the force is related to the magnitude of the force

So the answer is: friction; Pressure; Save labour; Size