Jack（2）(1) The foundation of the jack. The foundation of the jack should be stable, solid and reliable. When installing the jack on the bottom surface, it should be padded with road wood or other appropriate materials to expand the force-bearing area.(2) The placement of the jack. When placing a jac

Jack（1）Jack refers to a light and small lifting equipment that uses a rigid lifting piece as a working device to push heavy objects within a small stroke of the top bracket or bottom bracket. Jacks are mainly used in factories, mines, transportation and other departments as vehicle repair and other

Use method of electric jackToday we will introduce how to use the electric jack ,let's follow the steps below.1. Check whether all parts are normal before use.2. The provisions in the main parameters shall be strictly observed in use, and super high overload shall be avoided, otherwise, when the lif

HingesToday I will talk to you about the most important piece of hardware-hinges, the knowledge of hinges under in-depth science.1. The role of hingeHang up the door leaf support to realize the free rotation of the door leaf. Some special types of hinges realize some additional special functions, su

Things to know before loading refrigerated trucks1. The weight of the loaded cargo shall not exceed the weight of the vehicle.2. When loading cargo, handle with care and strictly prohibit brutal operations. The cargo should be placed in a well-balanced manner, and no sudden brakes should be used to

When transporting different goods, what devices need to be installed?（2）Install ventilation slots. When transporting fruits, vegetables, etc. that need to be packed in boxes or baskets and stacked, it is necessary to install a bottom ventilation slot. The cold air blown by the unit passes through th

When transporting different goods, what devices need to be installed?（1）What kind of goods can refrigerated trucks transport? For example: fruits and vegetables, cold fresh meat, quick-frozen food, aquatic seafood and other daily foods, as well as biological products (vaccine, stem cell, plasma bag)

Refrigerator trucks must maintain these seven components in winterIn the morning of early winter, there is a lot of dew, and the surface of the car is often very humid. If your car has obvious scratches, you should paint it in time to prevent the scratched parts from getting damp and rusty. In addit

The structure and principle of refrigerated truck（2）It is best to equip refrigerated trucks with original boxes. Although the initial installation price is slightly higher, the subsequent power supply and maintenance are more convenient. Although the installation price of non-original cabinets is lo

The structure and principle of refrigerated truck（1）In the process of transporting frozen products, the earliest equipment was a foam box covered with quilts, which was later transformed into a sponge cabinet. With the development of the economy, the previous refrigerated transportation methods have