Quick connecting device for boxes

Abstract

The invention discloses a quick connecting device for boxes. The quick connecting device comprises locking sleeves and four locking structures, wherein the locking sleeves are used for being fixed into grooves in the four corners of the bottom of the upper box, and the four locking structures are fixed to the four corners of the top wall of the lower box correspondingly. Four locking cone grooves are formed in the side wall of each locking sleeve in the same circumferential direction at equal intervals. Each locking structure comprises a locking base which is used for being fixed to the top wall of the lower box. Inner sleeves are fixed to the locking bases. The middle of each locking base is connected with a transmission cone in a threaded mode through a transmission shaft. Four triangular structures are symmetrically arranged on each transmission cone. A guide column which is fixed to the corresponding locking base is mounted between every two adjacent triangular structures. A locking arm is fixed between the upper portions of every two adjacent guide columns through a rotary shaft. Locking cone heads on the outer sides of the lower portions of the locking arms are matched with the locking cone grooves in shape. According to the quick connecting device for the boxes, the locked surfaces are tightly connected, and locking is safe and reliable.

Description

technical field [0001] The invention relates to a quick connection device for boxes, in particular to a quick connection device for heavy-duty boxes. Background technique [0002] At present, the common box connection is the connection device between the containers. The advantage of this device is that it is convenient to connect. However, when the box is heavier or larger than the container, the reliability of this connection method will decrease, and there is a gap between the boxes after this device is connected, which is easy to cause the gap between the boxes in harsh environments. Relative movement, especially in the case of several layers superimposed, will cause the cabinet to fall, and the consequences will be more serious if there are people living in the cabinet. Contents of the invention [0003] The object of the present invention is to overcome the disadvantages of the prior art, and provide a fast connection device for a box with tight connection between lo...

AI Technical Summary

Problems solved by technology

However, when the box is heavier or larger than the container, the reliability of this connection method will decrease, and there is a gap between the boxes after this device is connected, which is easy to cause the gap between the boxes in harsh environments. Relative movement, especially when several layers are superimposed, will cause the box to fall. If there are people living in the box, the consequences will be more serious

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