Dumper tail structure with hydraulic locking device

Abstract

The invention discloses a dumper tail structure with a hydraulic locking device. The upper part of a back door body is a hinge plate which is hinged with a hinge seat, the hinge seat is arranged at the upper end of a dumper box body, an oblong hole is formed in a connection part between the hinge plate and the hinge seat and is matched with a connecting shaft on the hinge seat, and the connecting shaft and the oblong hole can generate relative movement; a latch hook clamping shaft is arranged at the lower part of the back door body, and a hook clamping shaft is arranged between the hinge plate and the latch hook clamping shaft on the back door body and is clamped with a hook on the side wall of the dumper box body. According to the dumper tail structure with the hydraulic locking device, a back door and the hydraulic locking device use cooperatively, the locking effect is excellent, the fitting degree of the back door and the box body can be improved, and material leakage can be effectively prevented; the hydraulic locking device can further prevent the back door from jumping up, and ensure the safety and the reliability of a vehicle during using; the hydraulic locking device can further increase the pushing force of a hydraulic cylinder, and provides a larger locking force; the dumper tail structure with the hydraulic locking device has the advantages of being simple in operation, safe, reliable and high in controllability.

Description

technical field [0001] The invention belongs to the technical field of dump trucks, in particular to a tail structure of a dump truck with a hydraulic locking device. Background technique [0002] During the transportation of the dump truck, if the back door is not tightly sealed and locked firmly, material leakage is prone to occur. At present, most of the locking devices of dump trucks are in the form of mechanical locking. The mechanical locking depends on the automatic control of the lifting movement of the cargo box. When the cargo box is not lifted, the locking device cannot operate. In addition, after long-term use of the mechanical locking device, due to the existence of factors such as mechanical wear and permanent deformation, the gap between the back door and the box body will become larger and larger, and the back door will not be able to prevent material leakage, and the locking device will not work. Some functions are equivalent to failure. Contents of the i...

AI Technical Summary

Problems solved by technology

[0002] During the transportation of the dump truck, if the back door is not tightly sealed and locked firmly, material leakage is prone to occur

At present, most of the locking devices of dump trucks are in the form of mechanical locking. The mechanical locking depends on the movement process of the lifting of the cargo box to realize automatic control. When the cargo box is not lifted, the locking device cannot operate.

In addition, after long-term use of the mechanical locking device, due to the existence of factors such as mechanical wear and permanent deformation, the gap between the back door and the box body will become larger and larger, and the back door will not be able to prevent material leakage, and the locking device will not work. Some functions are equivalent to failure

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