Hand-pushed trolley with functions of assisting in going uphill and hindering going downhill and for construction site building

Abstract

The invention discloses a hand-pushed trolley with functions of assisting in going uphill and hindering going downhill and for construction site building. The hand-pushed trolley structurally comprises a rotatable chassis, walking wheels, adjustable support rods, sleeves, a trolley body, skid-resistance sleeves, telescopic armrests, a fixation top cover and a hinge cover, and the walking wheels are installed at the left and right sides of the trolley body. Compared with the prior art, the hand-pushed trolley has the advantages that assistance in going uphill is provided,, pushing force of a worker on the hand-pushed trolley is reduced, the speed at which the hand-pushed trolley goes uphills is increased, and the time and labor are saved; when the trolley goes downhill, resistance is provided, pulling force of the worker on the hand-pushed trolley is reduced, and the situation that the hand-pushed trolley slides downwards quickly is prevented; when the trolley goes uphill or downhill ona wet and slippery pavement, a magnet collides with a gasbag, airflow is blown to the ground, water in front of the walking wheels can be blown off or blown dry, friction of the walking wheels and the ground is increased to prevent the situation that the hand-pushed trolley slides backwards when the trolley goes uphill, the speed for going downhill is high, the trolley can be timely stopped whencolliding with stone, and the occurrence of the phenomenon that a building material slides or the hand-pushed trolley rolls over is avoided.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a trolley for construction sites that can assist uphill and hinder downhill. Background technique [0002] The cart is the ancestor of all vehicles. Although the material handling technology of the cart continues to develop, the cart is still used as an indispensable tool for transportation. The cart is one of the carts. It is a commonly used means of transportation on construction sites. It can work in places where motor vehicles are inconvenient, and can carry sand, bricks and other construction materials in a short distance. However, the trolley is artificially propelled. Because the existing technology is not perfect, it is used in hand push The bucket truck has the following defects when going up and downhill: [0003] 1) When going uphill continuously, because the road surface has a certain inclination, the trolley will exert a certain force on the operator d...

AI Technical Summary

Problems solved by technology

[0003] 1) When going uphill continuously, because the road surface has a certain inclination, the trolley will exert a certain force on the operator due to its own weight, and the trolley will also slide due to the inclined surface, which makes the operation difficult. The operator needs to spend a lot of effort to push the trolley up and walk and the pushing speed is slow, which is time-consuming and labor-intensive;

[0004] 2) When going downhill continuously, the road surface also has a certain inclination. Undoubtedly, the trolley will slide down, so the operator also needs to spend a certain amount of effort to pull the trolley. If the pulling force is too small, The trolley will slide down too fast, causing the building materials to slip or the trolley to roll over

[0005] 3) When the slippery road goes uphill or downhill continuously, the friction coefficient between the wheel and the road surface will become smaller, and the resistance will be smaller, which will lead to slipping after going uphill, and the downhill speed will be accelerated, and it will collide with stones. Inertia, the distance to stop the trolley will increase. If the stop is not timely, the construction materials will also slip or the trolley will roll over.

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