Container bottom lock and container with same

Abstract

The invention provides a container bottom lock which comprises a door hook, a driving shaft, a connecting rod system and a spring system. The driving shaft is fixed to a container and is connected with one end of the door hook, and the driving shaft drives the door hook to rotate around the driving shaft; the connecting rod system is fixedly connected with the driving shaft and converts rotation motion of the driving shaft into approximate rectilinear motion in the horizontal direction; and one end of the spring system is connected with the end, capable of moving the horizontal direction, of the connecting rod system, and the other end of the spring system is fixed to the container. By means of the container bottom lock, the driving shaft rotates to directly drive the door hook to rotate around the driving shaft, and opening and closing of a container door are achieved; the problem that the driving shaft is bent and deforms due to the fact that large deflection is generated when up-and-down force is applied to the end of the driving shaft is solved; and the reliability of opening and closing operation of the bottom lock is improved, and the service life of the driving shaft is prolonged.

Description

technical field [0001] The invention relates to the technical field of containers, and more particularly relates to a container bottom lock and a container with the same. Background technique [0002] Containers have been widely used as the preferred means of transportation. In addition to ISO standard shipping containers, there are also other special containers that meet special requirements, such as containers used for loading ore. In order to facilitate unloading, the rear end of this container mostly adopts an upturned door structure, and the bottom of the box is equipped with a door bottom. lock device. [0003] figure 1 , figure 2 It is a structural schematic diagram of the cross-sectional direction of the bottom lock device of the prior art, such as figure 1 As shown, the container bottom lock 32 includes a door hook 103 arranged on the box door 31 and a door hook matched with the door hook 103 arranged at the bottom of the container 3. The door hook is connected...

AI Technical Summary

Problems solved by technology

[0005] 1. The locking force of the spring cannot be adjusted, and uneven force is likely to occur in the locked state, and the manufacturing precision is high and the cost is high;

[0006] 2. The driving method is relatively backward. If an up and down force is applied to the shaft end, it is easy to generate a large deflection and make the shaft bend, resulting in unreliable opening action;

[0007] 3. If the driving shaft is inadvertently applied force, the door hook is accidentally opened, and the serious consequences of unlocking the door and running out of the cargo will occur.

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