Many people buy a manual hoist but do not know how to check it, where to check it, or whether the manual hoist is qualified. Let's talk about how to check the manual hoist for everyone.
1. Observe the appearance of the manual hoist. The surface of the qualified manual hoist has no scratches and burrs, the layer is uniform, and there is no corrosion. On the nameplate, there are series information such as product model, lifting height, product brand, manufacturer name, production date and so on, and the writing is clear. Observe the opening of the hook to see if it is deformed or damaged, and whether the pin at the end of the chain is firm.
2. Check whether the parts of the manual hoist are intact. Pull the chain, whether the sound is crisp and sweet, whether the transmission part is flexible, whether there is a jamming phenomenon, whether the chain has a slip chain or a chain drop phenomenon.
3. Need to carry out trial hanging. Check the stability of the bracket and the firmness of the chain when carrying objects. The lifting operation and the descent operation should also be done within a certain range of lifting height, or the number of trial lifts should be increased to check the load-bearing performance of the lifting point. Observe whether there are any abnormal phenomena in the process, such as whether the lifting chain is kinked during the up and down process, whether the brake is normal and so on.
4. Is there any product certificate? Check whether the manual hoist has the certificate, manual, production date, anti-counterfeit identification and other documents, and whether the manufacturer's qualification is complete.
When we buy a hand hoist, we must carefully check the manual hoist, and it is also very important to test the hoist before use.
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Reflective warning`s reflection part of the vest is the use of lattice micro-rhombus type refraction and high refractive index of glass beads back to the principle of reflection, through the post-processing of advanced processing technology made. It can reflect the distant light back to the light. Both in the day or night have a good retroreflective optical performance. Especially at night, it can play the same high visibility as the day. The use of this high-energy reflective material made of safety clothing, whether the wearer is in the distance, or in the light or scattered light interference, it can be relatively easy to be found by the night driver.
Reflective warning vests are made of high-visibility reflective material It can make the traffic police work smoothly in the night or special weather in order to reduce the rate of the casualties. it plays a special role in security especially in traffic engineering.When the motor vehicle fails, the driver needs to wear a reflective warning vest, and away from the faulty vehicle to prevent the occurrence of secondary accidents. This kind of reflective warning vest is mainly applicable to police, road officials, traffic commanders, road maintenance personnel, motorists, motorcycles and bicycles drivers, dark light workers and so on in one word, the local worker who needs to use light warning. Widely used in traffic engineering, shipbuilding industry, steel industry, machinery industry, oil industry, ambulance, parking lot, airport, traffic police and outdoor work or construction, plays an important role in good security warning .
When Car Reflective Vest use the aluminum lattice reflective material, not only in a small angle (from the reflective warning vest wearer far away), reflective brightness is high, even at a large angle (from the reflective warning vest wearer closer ), it still has a good reflective brightness, so that the locomotive driver earlier identified roadside vehicle side of the staff, as soon as possible to respond to effectively prevent the occurrence of secondary accidents.
According to reflective vest`s wearing [far distance discovers, near distance recognise" s character. It balances the big and small angle of optical performance. It has a large reflection angle.
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