A cargo trolley capable of climbing stairs

Abstract

The present invention discloses a delivery trolley capable of climbing stairs. The delivery trolley comprises a frame. Two crawler wheels are arranged on each of the both sides of the frame. The samecrawler is mounted on the outer side of the two crawler wheels on the same side of the frame in a transmission way. A mounting groove is formed in one side of the bottom of the frame. A limiting rod is welded on the inner wall of the top of the mounting groove. A screw rod is slidably mounted on the outer side of the limiting rod. A rotating groove is formed in the side wall of the mounting groove. A turnplate is mounted on the outer side of the screw rod through threads. The turnplate is rotationally mounted in the rotating groove. A first groove is formed in the inner wall of the top of therotating groove. A stepping motor is fixedly mounted on the inner wall of the top of the first groove. A gear groove is formed in the top of the turnplate. The delivery trolley is high in practicability, simple in structure, and convenient to operate, a driving plate is moved conveniently, so that the frame can be in a tilted state, the crawlers are conveniently moved to be in contact with stairs,so that the frame can move on the stairs, and goods can be delivered conveniently.

Description

technical field [0001] The invention relates to the technical field of cargo delivery devices, in particular to a cargo delivery trolley capable of climbing stairs. Background technique [0002] When carrying goods to the floor in a building without elevator facilities, it is necessary to use a cargo device capable of climbing the ladder to transport the goods. The patent document of CN104386104A provides a stair-climbing trailer. This structure consists of handrails, vehicle frames, Composed of wheels and other components, a crawler-type rolling device is installed under the frame. The length of the bottom of the crawler and the wheels can press the three steps of the ladder, and the crawler and wheels roll forward. When going up the ladder, it is like driving on a slope without strong vibration and convenient. It is easy for people to use, but this structure is not convenient to move the frame to the inclined state. When the height of a single staircase is higher than the ...

AI Technical Summary

Problems solved by technology

[0002] When carrying goods to the floor in a building without elevator facilities, it is necessary to use a cargo device capable of climbing the ladder to transport the goods. The patent document of CN104386104A provides a stair-climbing trailer. This structure consists of handrails, vehicle frames, Composed of wheels and other components, a crawler-type rolling device is installed under the frame. The length of the bottom of the crawler and the wheels can press the three steps of the ladder, and the crawler and wheels roll forward. When going up the ladder, it is like driving on a slope without strong vibration and convenient. It is easy for people to use, but this structure is not convenient to move the frame to the inclined state. When the height of a single staircase is higher than the height of the track, it will be difficult for this ladder climbing device to move to the stairs, so that the climbing behavior cannot continue , so we propose a cargo trolley that can climb stairs to solve the above problems

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