Device for opening and closing back door of rubbish bin

Abstract

The invention discloses a device for opening and closing a back door of a rubbish bin, which belongs to the technical field of rubbish storage and transportation devices. The device for opening and closing the back door of the rubbish bin comprises a carriage, wherein the back end of the carriage is provided with a back door frame; the back door is arranged in and matched with the back door frame; the matching face with the back door on the back door frame is provided with a gasket; the upper part of the back door is rotatably connected with the carriage through a connecting hinge pin; both sides of the upper part of the back door is provided with a straight groove backwards and downwards; the connecting hinge pin is inserted into the straight groove; both sides of the carriage are hinged with a two-way hydraulic oil cylinder respectively; the extension end of a piston rod of the two-way hydraulic oil cylinder is hinged with the end part of a long arm of an L-shaped locking arm; a short arm of the locking arm is inserted between a closing limited hinge pin and an opening limited hinge pin arranged on the back door; and the middle part of the locking arm is hinged with the back door frame. The two-way hydraulic oil cylinder can drive the locking arm to rotate to open or close the back door; and the back door has flexible opening and closing, capability of remote control, reliable use and good sealing performance without leakage in the process of transportation, and can be used for treating urban rubbish.

Description

technical field [0001] The invention relates to a garbage storage and transportation device, in particular to a rear door opening and closing device of a garbage bin. Background technique [0002] In the prior art, there is a rear door of a garbage compression box, its patent number is: ZL200520072708.4, the device mainly includes a carriage, the rear of the carriage is provided with a rear door frame, the rear door frame is equipped with a rear door, and a belt is installed on the side of the carriage. There is a ratchet mechanism and pull rod with a handle, a shift fork and a lock plate are arranged on the side of the rear door frame, a lock pin matching the lock plate and shift fork is arranged on the rear door, and a seal is arranged between the mating surface of the rear door frame of the carriage and the rear door. Pad; the upper part of the rear door is rotatably connected with the compartment through the connecting pin shaft, and the upper part of the rear door is pr...

AI Technical Summary

Problems solved by technology

The disadvantage of this device is that its control is not convenient enough. During the opening and closing process of the rear door, the lock pin is easy to collide with the shift fork, and its reaction force is easy to damage the ratchet mechanism, which affects the reliability of the device.

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