Rear door opening and closing device for dump truck

A technology of dump trucks and opening and closing devices is applied in the arrangement of loading and unloading vehicles, motor vehicles, transportation and packaging, etc., to avoid potential safety hazards and to achieve safe and reliable opening and closing.

Inactive Publication Date: 2015-06-17
FAW JIEFANG AUTOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides an opening and closing device for the rear door of a dump truck, which can solve the problem that the side lock hook of the existing opening and closing device needs to be manually opened and closed by the operator

Method used

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  • Rear door opening and closing device for dump truck
  • Rear door opening and closing device for dump truck
  • Rear door opening and closing device for dump truck

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Below in conjunction with accompanying drawing example, the present invention is described in further detail:

[0017] This embodiment includes a support 1, a movable support 2, a rear door pivot arm 3, a rear door pin 4, a support pin 5, a rear column 6, a rear door assembly 7, a side lock hook 8, a lock 9, and a cylinder pin Shaft 10, nut 11, oil cylinder assembly 12.

[0018] Such as figure 1 Shown present embodiment, the present invention is described in further detail:

[0019] Bearing 1 is fixed on the rear column 6 of the automobile compartment, and movable bearing 2 is hinged with bearing 1 by bearing pin 5, and movable bearing 2 can rotate along bearing pin 5 centers. One end of the rear door pivoting arm 3 is connected with the compartment rear door assembly 7, and the other end is hinged with the movable support 2 through the rear door pin shaft 4. The oil cylinder assembly 12 is connected with the carriage rear column 6 through the oil cylinder pin shaft ...

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PUM

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Abstract

The invention discloses a rear door opening and closing device for a dump truck. The rear door opening and closing device comprises a supporting seat mounted on a rear pillar of a truck component, a movable supporting seat hinged with the supporting seat, a rear door rotary arm hinged with the movable supporting seat and a rear door assembly fixed to the rear door rotary arm, wherein an oil cylinder assembly is arranged in the rear pillar; the telescopic end of the oil cylinder assembly is connected with the movable supporting seat; at least one lock hook with the opening direction of a clamping groove as same as the up-and-down movement direction of the rear door assembly is arranged on the edge of the truck compartment; a lock catch matched with the lock hook is arranged on the rear door assembly and falls into the lock hook for locking when a rear door is closed; and the lock hook can be mounted on a side plate or a bottom plate of the truck compartment. Compared with the prior art, the problem that the side lock hook of the conventional opening and closing device needs to be manually opened and closed by an operator can be solved.

Description

technical field [0001] The invention relates to an opening and closing device for the rear door of a dump truck. Background technique [0002] The opening and closing device of the back door of the existing commercial dump truck compartment is as follows: figure 1 The shown is composed of a support installed on the rear column of the car compartment, a movable support hinged with the support, one end hinged with the movable support, and the other end connected with the rear door assembly. The rear door is usually locked by means of The lock hook chain fixed on the sub-frame of the carriage utilizes the offset distance relative to the turning axis of the carriage when the carriage is lifted and lowered, and the lock hook chain tightens the lower lock hook to achieve the purpose of locking the rear door. The side lock hook installed in the middle of the rear door assembly is completely opened and closed by manual operation. The opening and closing device of this structure ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60P1/26B60P1/273
Inventor 陈文潮
Owner FAW JIEFANG AUTOMOTIVE CO
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