Why can some trolleys achieve mute effect?

Silent wheelbarrow refers to a wheelbarrow that makes little noise during transportation. It is composed of plastic carriage board, chrome-plated handrail, silent caster and bracket. It has the characteristics of durability, good anti-skid performance, noise reduction and space saving. The reason why the silent trolley can be silenced is that the casters made of polyurethane or resin can reduce the friction coefficient with the floor, and their own weight is relatively light. The bearing design can also make the rolling resistance of the casters smaller, thus achieving the mute effect. Let's take a look at the silent tram.

First, the structural characteristics of the silent car

Friends who often use wheelbarrows know that ordinary wheelbarrows make a lot of noise and easily affect others. In order to reduce noise, there is a silent trolley. The structure of the silent car consists of a plastic carriage plate, chrome-plated handrails, silent casters and a bracket. Its main features are:

1, the car plate is made of special resin material or cold-rolled steel plate, which is durable.

2. Anti-skid rubber head is attached to the plastic car board, and anti-skid rubber pad is attached to the upper surface of the steel car board, which has good anti-skid performance.

3. Silent casters are made of high-performance resin or polyurethane, which can effectively reduce noise and driving force.

4. The chrome-plated handle is smooth and durable.

5. The handle of the silent cart is equipped with a baffle to prevent the items from slipping backwards.

6. The handle of the silent cart can be folded, which can save a lot of space when it is not used or carried.

This picture is provided by the registered user "Jinghu drinker", and the copyright statement is feedback.

Second, is the silent tram really silent?

The principle of silent handcart is mainly realized by special silent casters and caster bearings. Can't completely mute, but can reduce noise, quite practical.

1. The casters of the silent car are made of special polyurethane or resin materials, which reduces the friction coefficient with the floor, initial resistance and walking resistance, so it is relatively light to transport. In addition, the car board and casters are made of resin and plastic, which are relatively light in weight, so the sound made when pushing the cart is relatively small.

2. The bearings of the casters of the silent trolley adopt special 6200 and 6303 ball bearings, and the clearance standard of the precision bearing makes the casters more lubricated, and the rolling resistance is smaller, which can play the role of silence.

The silent handcart is designed with unique silent and transmission technology, which makes the handcart walk quietly and briskly, and is more suitable for hotels, libraries, office buildings, restaurants and other fields.