Truck and auxiliary closing device for bottom door thereof

Abstract

The invention discloses an auxiliary closing device for a bottom door. The device comprises an elastic part which is installed between an underframe (1) of a truck and the bottom door (2), wherein the elastic part has a restoring force for the bottom door (2) along the closing direction of the bottom door (2). When the bottom door (2) is closed by pushing of an operator, as the elastic part has the restoring force on the bottom door (2) along the closing direction of the bottom door, the resultant force of the restoring force and the applied force on the bottom door (2) by the operator is equal to the gravity of the bottom door (2), the restoring force of the elastic part counteracts a part of gravity of the bottom door (2); therefore, when the bottom door (2) with the same weight is closed, the applied force by the operator can be obviously reduced, the labor intensity of the operator during the closing process is reduced, and the potential safety hazard is also reduced.

Description

technical field [0001] The invention relates to the field of transportation tools, in particular to an auxiliary closing device for a bottom door of a truck. The present invention also relates to a truck comprising the above-mentioned auxiliary closing device for the bottom door. Background technique [0002] With the rapid development of my country's economic construction, the market's demand for transportation tools, especially various trucks, is increasing day by day. [0003] In order to improve the unloading speed of trucks and reduce the labor intensity of staff, many trucks have bottom doors at their bottom walls. When it is necessary to unload the goods in the carriage, the bottom door is opened, and the goods are unloaded under the action of its own gravity, without the need for staff to enter the carriage to unload the goods, which significantly improves the work efficiency during the unloading process and reduces the number of workers. labor intensity. [0004]...

AI Technical Summary

Problems solved by technology

The bottom doors of trucks are mostly welded parts made of steel plates. In order to ensure that the bottom doors have sufficient strength, rigidity and stability, and due to the structural constraints of the truck itself, the weight of the bottom doors is relatively large, generally around 200Kg. In this way, During the closing process of the bottom door, the labor intensity of the operator is relatively high, and once the operation fails, the bottom door falling under the action of gravity will cause personal injury to the operator, and there is a serious safety hazard

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