Lifting type carriage cargo loading and unloading device

A lifting type carriage cargo loading and unloading device, comprising:

• a frame comprising a cargo carrying platform, lifting oil cylinders and a supporting platform;
• the lifting oil cylinders are connected to both sides of the cargo carrying platform, the supporting platform is arranged on an upper surface of the cargo carrying platform, a lower surface of the supporting platform is provided with support columns, and the support columns are slidably penetrated into the cargo carrying platform and extend beyond a lower surface of the cargo carrying platform;
• a cargo carrying mechanism, which is movably installed on the cargo carrying platform, and comprises a push-and-pull assembly and at least two cargo carrying assemblies;
• and the at least two cargo carrying assemblies are arranged at intervals, each cargo carrying assembly is provided with an upper cover which is liftable, and the push-and-pull assembly is driving the upper cover to rise or restore the upper cover;
• and
• a power mechanism installed on the cargo carrying platform or in the frame, and connected with the cargo carrying mechanism, to drive the cargo carrying mechanism to move along the cargo carrying platform;
• wherein the lifting oil cylinders drive the cargo carrying platform to move up and down, and wherein the supporting platform is flush with an upper surface of the upper cover or the supporting platform is lower than the upper surface of the upper cover;
• wherein each cargo carrying assembly further comprises a base and a plurality of lifting assemblies, the base is movably installed on the cargo carrying platform, the upper cover is covered on the base, the base is connected with the upper cover through the lifting assemblies, and the push-and-pull assembly is installed on the base.