Grab arm type slag sand box rear door locking system

Abstract

The invention discloses a grab arm type slag sand box rear door locking system. The rear door opening action includes the steps that by rotating a handle, manual mechanical locking devices are made todisengage from corresponding locking bases; then a rear door opening button on an operation panel is pressed; a locking oil cylinder pushes a piston rod of the locking oil cylinder to stretch out under the effect of hydraulic oil, and a four-connection-rod mechanism is driven to move upwards; a lock rod disengages from a plug pin supporting base to achieve the plug pin opening action; and then apiston rod of a hydraulic oil cylinder retracts, a rear door is driven to overturn upwards, and the rear door opening action is achieved. The rear door closing action includes the steps that a rear door closing button on the operation panel is pressed; the piston rod of the hydraulic oil cylinder stretches out under the effect of the hydraulic oil; the rear door is driven to overturn downwards, and the rear door closing action is achieved; the piston rod of the locking oil cylinder retracts, and the four-connection-rod mechanism is driven to move downwards; the lock rod stretches into the plugpin supporting base to achieve the plug pin closing action; and a trapezoidal sealing strip is used, the manual mechanical locking devices are additionally installed on the two sides of the lower portion of the rear door, it is guaranteed that no bad smell or sewage or the like leaks in the transporting process, and secondary pollution is avoided.

Description

technical field [0001] The invention belongs to the technical field of environmental sanitation machinery and equipment, and in particular relates to a rear door locking system of a hook arm type slag sand box. Background technique [0002] The back door of the traditional garbage bin is mainly driven by the locking oil cylinder to rotate the locking bolt to an appropriate position to lock the back door. This structure requires accurate initial position of the rear door of the garbage bin. Coupled with the influence of site conditions, the back door of the garbage bin is often Unable to be in the proper position of the locking bolt, resulting in difficulty in locking and troubles in transportation. In addition, the opening and closing of the back door is completely completed by its own weight. When the garbage is dumped from the box, the back door will be impacted by the garbage and cause deformation, which will affect the service life. [0003] The garbage collected by the...

AI Technical Summary

Problems solved by technology

[0002] The back door of the traditional garbage bin is mainly driven by the locking oil cylinder to rotate the locking bolt to an appropriate position to lock the back door. This structure requires accurate initial position of the rear door of the garbage bin. Coupled with the influence of site conditions, the back door of the garbage bin is often Unable to be in the proper position of the locking bolt, resulting in difficulty in locking and troubles in transportation

In addition, the opening and closing of the rear door is completely completed by its own weight. When the garbage is dumped from the box, the rear door will be impacted by the garbage and cause deformation, which will affect the service life.

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