Gantry type self-walking automatic folding and unfolding awning

Abstract

The invention discloses a gantry type self-walking automatic folding and unfolding awning. The awning comprises a folding and unfolding mechanism installed on a carriage and awning cloth covering thefolding and unfolding mechanism. The folding and unfolding mechanism is driven by vertical plates symmetrically arranged on the left side and the right side. A driving chain wheel is arranged on the inner side of each vertical plate; the driving chain wheels on the left side and the right side are driven by the same power assembly, a driven chain wheel is arranged below each driving chain wheel, the driving chain wheels are connected with the corresponding driven chain wheels through chains, idler wheels are coaxially installed beside the driven chain wheels, the idler wheels are matched withrails in a rolling mode, and the rails are fixed to the outer side of the carriage. The folding and unfolding mechanism is driven in a gear and chain transmission self-walking mode, the structure is simple and compact, mounting and operation are easy, the production cost is low, the operation reliability is good, the movement synchronism of the left vertical plate and the right vertical plate is good, the clamping stagnation defect is not likely to happen, it is guaranteed that the awning cloth can be normally folded and unfolded all the time, safety is good, and the folding and unfolding mechanism is suitable for various trucks.

Description

technical field [0001] The invention belongs to the technical field of vehicle accessory facilities, and in particular relates to a gantry-type self-propelled and automatically retractable awning. Background technique [0002] At present, a canopy is usually installed on the compartment of a lorry or a truck, and the canopy plays a role in protecting goods or preventing dregs from leaking out. The existing retractable canopy generally uses steel wire ropes, chains, etc. as circulating cables to make the tarpaulin unfold or shrink. The disadvantages of the existence are: [0003] 1) The steel wire rope or chain is arranged from front to back on both sides of the carriage, which is long and prone to breakage, posing certain safety hazards; [0004] 2) The synchronization of the circulating cables on both sides is poor, which is easy to cause stagnation, making the mechanism unable to operate normally, and may cause safety accidents; [0005] 3) The structure is relatively co...

AI Technical Summary

Problems solved by technology

[0003] 1) The steel wire rope or chain is arranged from front to back on both sides of the carriage, which is long and prone to breakage, posing certain safety hazards;

[0004] 2) The synchronization of the circulating cables on both sides is poor, which is easy to cause stagnation, making the mechanism unable to operate normally, and may cause safety accidents;

[0005] 3) The structure is relatively complicated, and the installation is very cumbersome, not only the production cost is high, but also the installation efficiency is low;

[0006] 4) The entire circulating cable mechanism is exposed to the outside. Affected by wind and rain, the transmission chain or wire rope is prone to rust and damage, which not only increases maintenance costs, but also poses safety hazards;

[0007] 5) The cables formed by chains or steel wires are constrained by continuity and inseparability. They need to be fixed on both sides of the compartment all the time, so the side doors cannot be opened. Therefore, this type of canopy is only suitable for rear-opening dump trucks with side-opening doors. Trucks cannot be installed and used, and the versatility is poor;

[0008] 6) The powertrain is arranged on the outer wall of the front end of the compartment, which will affect the consistency of the vehicle leaving the factory

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