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Back door open-and-close mechanism of self-discharging vehicle

A technology of opening and closing mechanism and dump truck, which is applied in the direction of inclined load-carrying vehicles, etc. It can solve the problems of large space, easy to be damaged, easy to be damaged, etc., and achieve small space, safe and reliable structure, safe and effective opening and locking Effect

Inactive Publication Date: 2008-07-23
CHINA INTERNATIONAL MARINE CONTAINERS (GROUP) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Although these two opening and closing mechanisms are simple in structure, they are easily damaged.
For example, the Chinese Utility Model Patent No. 200320106148.0 discloses a tailgate cargo box that automatically opens and closes for a dump truck. This structure requires a large space and is easily damaged

Method used

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  • Back door open-and-close mechanism of self-discharging vehicle

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Embodiment Construction

[0017] As shown in Figures 1 and 2, in the present invention, the dump truck includes a compartment floor 20 and a compartment rear door 30, wherein the compartment rear door 30 is rotatably connected to the compartment. During transportation, the carriage floor 20 remains horizontal, and the carriage rear door 30 is locked, which is approximately perpendicular to the carriage floor 20; while in the unloading process, the carriage floor 20 is tilted at an angle, and the carriage rear door 30 is opened.

[0018] In order to ensure that the compartment rear door 30 is locked during transportation and released during unloading, a rear door opening and closing mechanism is provided below the compartment floor 20 . The rear door opening and closing mechanism includes a turning handle base 1 fixed on the compartment floor 20, and a bent turning handle 2 is rotatably connected to the turning handle base 1 through a bending point 11 in the middle. The handle 2 is roughly L-shaped, inc...

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PUM

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Abstract

The invention relates to a back door switching mechanism of self-discharging vehicles and comprises a bending stem that is rotatablely connected on a carriage base board of a self-discharging vehicle and a locking hook that is buckled with a carriage back door, and a pull rod is connected between the upper end of the stem and the back end of the locking hook; a stem limited girder is fixedly arranged under the stem. An elastic element is arranged between the carriage base board and the pull rod and is used for exerting the force towards the locking hook on the pull rod. The invention leads the switching mechanism to be arranged under the carriage base board of the self-discharging vehicle, thus needing smaller motion space, having safe and reliable structure, and implementing safe and efficient opening and locking of the back door. The invention can better control the opening and locking of the carriage back door by arranging a return elastic element.

Description

technical field [0001] The invention relates to a dump truck assembly, more specifically, to a rear door opening and closing mechanism of a dump truck. Background technique [0002] At present, the compartments of dump trucks are often used to transport materials such as ore, mud, coal, etc., and the rear portion thereof is usually provided with a rear door. The rear door is connected to the compartment through an opening and closing mechanism. In order to facilitate unloading, the back door must be able to open automatically during unloading; at the same time, in order to prevent materials from spilling out during transportation, the back door must be able to be automatically locked during transportation. [0003] Existing rear door opening and closing mechanisms are generally divided into elastic opening and closing mechanisms and rigid opening and closing mechanisms, wherein elastic opening and closing mechanisms are also called chain opening and closing mechanisms, and ...

Claims

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Application Information

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IPC IPC(8): B60P1/26
Inventor 李华锋柏贞万刘继稳
Owner CHINA INTERNATIONAL MARINE CONTAINERS (GROUP) CO LTD
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