How to do the handcart?

Preparation materials: scissors, paper box, pen.

1, cut the paper box into the required shape to make the front and back of the car body.

2. Cut out four circles to make wheels.

3. Combine the cut cardboard, stick it with tape, stick the cut wheels on the car body, and then draw eyes and mouth on the car.

A car is a means of transportation that can be driven by its own power and can be maneuvered without rails or electricity. Broadly speaking, a four-wheeled vehicle is generally called a car. Auto (English word) generally refers to automobile (invented by karl benz), a modern means of transportation. The original English translation is "automatic car", which is also called "automatic car" in Japan (the car in Japanese refers to what we call a train). Other languages are also "automatic cars", except China.

Hand-made safety precautions:

1, tools should be checked before use to keep them in good condition and clean.

2. To choose qualified tools, you can't add relay arms to tools to increase inappropriate torque; Prohibit the use of substitute tools; It is forbidden to use unreasonable knocking and hammering tools.

3, tool handle should be dry, it is forbidden to be stained with lubricating oil and other grease.

4. If possible, install a safety net in the direction of chip removal, otherwise no one is allowed to stand in this direction; It is forbidden to use high-speed steel as a whole; Don't hit the little wife with a sledgehammer. When chips and ashes are discharged, it is forbidden to blow with your mouth or wipe with your hands; Do not use a wrench as a hammer tool; Dirt and oil stain in casing shall be removed at any time.

5. Carry-on tools should be put in special tool bags, and tools should not be put casually, especially in high places and places where high vibration is easy to slide.

6. The pipelines of air source, power supply and other power sources shall be inspected before use, and there shall be no leakage or damage. Only when the pressure reaches the specified value can the power source tool be used. The insulation degree of wires and the reliability of grounding protection of various power supply facilities should be checked regularly. If the conductor is found to be hit, squeezed or squeezed during operation, its reliability should be checked in time.

7. Before using the power tool, check the integrity of the installed protective cover or protective device, and do not change or remove the original protective measures at will. If the installation kit needs to be disassembled, it should be reset in time.