Patent ID: 11858792
Assignee: JIAXING TAIXIN METAL PRODUCTS CO., LTD.
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 7:
8. The lifting machine of claim 1, wherein the lifting machine further comprises:
an extension assembly, wherein the extension assembly comprises:
two base extension supporting rods with equal length,
two carrying platform extension supporting rods with equal length,
a ninth lifting rod and a tenth lifting rod which are equal in length,
wherein each of the base extension supporting rods and each of the carrying platform extension supporting rods are equal in length;
wherein the ninth lifting rod and the first lifting rod are equal in length, wherein the two base extension supporting rods are arranged in parallel in front-to-back manner, and the spacing between the two base extension supporting rods is equal to that between the front base supporting rod and the rear base supporting rod, wherein the right ends of the two base extension supporting rods are connected to a fifth rotating shaft, and the fifth rotating shaft is rotatably connected to the right ends of the two base extension supporting rods, wherein the two carrying platform extension supporting rods are arranged in parallel in front-to-back manner, and the spacing between the two carrying platform extension supporting rods is equal to that between the two carrying platform supporting rods, wherein the right ends of the two carrying platform extension supporting rods are connected to a sixth rotating shaft, and the sixth rotating shaft is rotatably connected to the right ends of the two carrying platform extension supporting rods, wherein the upper ends of the ninth lifting rod and the tenth lifting rod are rotatably arranged on the sixth rotating shaft, and the lower ends of the ninth lifting rod and the tenth lifting rod are rotatably arranged on the fifth rotating shaft, wherein the front base supporting rod and a first one of the base extension supporting rods located at the rear, the front base supporting rod and a second one of the base extension supporting rods located at the front, a first one of the carrying platform supporting rods located at the front and a first one of the carrying platform extension supporting rods located at the front, as well as a second one of the carrying platform supporting rods located at the rear and a second one of the carrying platform extension supporting rods located at the rear are respectively rotatably connected through a corresponding connecting plate of four connecting plates, wherein after being pushed up, the seventh lifting rod, the eighth lifting rod, the ninth lifting rod, the tenth lifting rod, the two base extension supporting rods, the two carrying platform extension supporting rods and the four connecting plates form a parallelogram-shaped supporting frame.