Basic introduction Chinese name: Trolley mbth: Trolley properties: Trolley material: stainless steel, steel, plastic and aluminum, introduction, classification, application, related information, safety of trolleys, transformation of trolleys, introduction and overview Trolley is divided into one wheel, two wheels, three wheels and four wheels. The unicycle can run on narrow springboard, temporary bridge and narrow path, and it can also turn in place, which is very convenient for dumping goods. Commonly used two-wheeled vehicles include hand-propelled trucks (also known as tiger trucks), shelf trucks and bucket trucks that transport bulk materials. One of the three-wheeled carts and two of the four-wheeled carts can rotate around the vertical axis (see figure). This kind of slewing caster can automatically adjust to the direction with the minimum driving resistance with the change of the driving direction of the vehicle. Trolleys are classified into trolleys with different purposes, and the body structure is different. Most ordinary four-wheeled carts have a cargo platform. Special trolleys have a variety of structures, some of which are made into boxes, which are suitable for light handling and convenient loading and unloading; Some car bodies extend out of the bracket to facilitate the placement of rods, shafts, pipes and other parts; Some car bodies are exactly the same as goods, such as gas cylinder cars; Some are small, can be folded and easy to carry; Some are convenient for loading and unloading cylindrical goods such as barrels of liquid and paper rolls, and there are two flat steels on the car body to form a low inclined plane, which is convenient for cylindrical goods to roll up and down, such as cylindrical goods loading and unloading vehicles. Modern trolleys are equipped with rolling bearings and the wheels are made of solid tires or pneumatic tires. The anti-static trolley is made of stainless steel skeleton, screen plate, steel column and anti-static nylon wheel. The four-corner column of the mesh plate is equipped with adjustment clips and adjustment grooves, which is light and flexible. The steel column is equipped with a protruding coil of the nozzle every other inch, which can adjust the required height according to the needs and effectively release the static charge. Fast adjustment and convenient use. Strong and durable, the laminate is divided into two types: mesh plate and flat plate, with bridge structure and uniform load distribution. The silent trolley is novel and beautiful, and the use of synthetic plastic body and casters reduces the weight of the whole vehicle. The unique mute and transmission technology design makes the trolley walk silently and briskly. Widely used in factories, office buildings, libraries, hotels, restaurants, logistics and transportation and other material handling industries. According to the different needs of use, trolleys have different specifications (for example, single layer, double layer, hand pull, hand push, etc. ), and should be based on the weight and size of the loaded object to make a reasonable choice. The types of unicycles also include two-wheeled vehicles and unicycles, and there are also wooden unicycles in some rural and mountainous areas of China. Wooden unicycle once played an important role in the movement before liberation in China. According to the different use environment, there are many kinds of materials for trolleys: stainless steel, steel, plastic, aluminum and so on. Stainless steel trolleys are widely used in food, medical and chemical industries, while steel trolleys are widely used in industries such as industry, storage and electronics. Plastic and aluminum trolleys are generally used in small warehouses, shops and shopping malls because of their light material and convenient carrying. Trolley is widely used in the world. Generally speaking, in Europe and North America, trolleys are used in gardens, in Africa, in mines, and in the Middle East, trolleys are mostly used for construction. China Qingdao Jiaonan's most famous luggage case manufacturing base serves luggage case users all the year round. Anti-static trolleys are suitable for storing goods in semiconductor, ic, food, biomedicine, manufacturing and various clean room operation areas. Resistance of antistatic system: the 6th power of 10 ~ the 9th power ω of10. The structure of the silent trolley has the following characteristics: 1. The plate of the silent trolley is made of special resin material or cold-rolled steel plate, which is firm and durable. 2. Anti-skid rubber heads are attached to the plastic car board, and anti-skid rubber pads are attached to the upper surface of the steel car board. 3, silent roller casters, using high-performance resin, effectively reducing noise and driving force. 4. The chrome-plated handle is smooth and durable. 6, the handle can be folded down, which can save space to the maximum extent. Feida trolleys, plastic trolleys, flatbed trolleys, silent trolleys, trolleys, flatbed trolleys, folding trolleys, casters, industrial wheels. Information about trolley safety 1. Using trolleys can reduce human lifting and back fatigue. They are usually the best choice for the following activities: loading and unloading heavy goods; Reduce the journey in the process of cargo transportation. 2. Choose a suitable trolley at work to determine the weight and size that can be used to carry goods: special trolleys are only used for special handling purposes (for example, trolleys with bottom supports can be used to carry round containers); Determine your handling route and remove any obstacles; Wear safety non-slip shoes-it is recommended to use safety shoes approved by ANSI of the National Security Association of the United States to protect your feet and prevent heavy objects from falling and unicycle wheels from being injured; Wear gloves to get good friction; Avoid wearing big and loose clothes, they will trip you and damage the wheels of the trolley. 3. Bend your knees and straighten your back with appropriate skills, and do it with your legs instead of your back; Don't push too hard, or sudden lifting will hurt your back. 4. Keep the goods balanced and stable when unloading, and put the heavier goods at the bottom; When stacking a pile of goods, don't exceed the height of your sight; Place the goods towards the front end of the bearing, not beyond the handle of the trolley, and then carry the heavy objects; Ensure that the heavy objects are stable and will not shake or fall over; When handling heavy or complicated instruments, they must be tied and fixed. 5. Operate the trolley to get the minimum physical fatigue and the maximum maneuverability, so as to hold the handle tightly; Bend your knees and keep your back straight; Remove all sundries on the way forward; Push, do not run; Push instead of pull, the operation is not difficult; Only when you need to enter a narrow space can you retreat; Don't try to stop the car with your feet. Modification of trolley 1. Usually, the frame of my trolley is relatively small, so it is inconvenient and unstable to load large pieces. The frame can be improved so that it can expand and contract freely. 2. In order to facilitate and save labor when pushing the cart, the push frame here can be folded at a certain angle. It is very annoying when the cart goes downhill. If you are not careful, it will fall down. Especially in crowded railway stations, people who have used trolleys should feel the same way. You can add a brake device to reduce the pressure when going downhill.