Semi-trailer top locking device

Abstract

The invention discloses a semi-trailer top locking device. The device comprises a first connecting plate, a second connecting plate and winding wheels, wherein a row of connecting blocks are welded tothe top surface of the first connecting plate, the connecting blocks are fixedly connected with steel wire ropes, and one ends, away from the connecting blocks, of the steel wire ropes are connectedwith the winding wheels; and two brackets are welded to the top surface of the second connecting plate, a winding shaft is rotationally connected between the brackets, and the winding wheels and the winding shaft are coaxially welded. According to the device, the first connecting plate and the second connecting plate are fixed at the top of the semi-trailer through threaded holes, the winding shaft and the winding wheels are rotated by rotating a hand wheel, to that the first connecting plate and the second connecting plate are tensioned, and the tensioned two connecting plates are fixed through a fixing band and a clamping groove, so that the aim of top locking is achieved; and in addition, the first connecting plate and the second connecting plate are connected with suckers through auxiliary rods, so that convenience is brought to the primary fixation for the semi-trailer.

Description

Technical field [0001] The invention relates to the field of van type semi-trailer parts, in particular to a semi-trailer roof locking device. Background technique [0002] Van semi-trailer refers to a semi-trailer modified on the chassis of a van or manufactured separately. According to the difference of its compartment, it can be divided into passenger compartment and compartment type, suitable for the transportation of household appliances and building materials. The car body is made of high-strength cold-rolled corrugated steel plate, which has the characteristics of multiple pull, heavy load, and light weight. The top of the car has a closed type, a push-pull open type, an open type, and an open tarpaulin rod type, which is convenient to operate. [0003] In order to solve the problem of roof locking of van semi-trailer, the patent authorized announcement number CN209208884U proposes "a roof locking device for van transport semi-trailer", which is equipped with three metal pla...

AI Technical Summary

Problems solved by technology

However, the above patent uses strong magnets to connect with the roof. Although the connection is more convenient, it requires more manpower and material resources to disassemble, which is contrary to the original intention of the patent to save time and effort; in addition, the patent needs to be adjusted through the grooves one by one. The length of the metal chain, which also takes a lot of time

Images