The invention discloses a high-bearing-capacity trundle. The high-bearing-capacity trundle comprises a fixing plate, a fixed seat and a rotating seat. The fixed seat is arranged on the lower surface of the fixing plate. A first bearing is arranged between the rotating seat and the fixed seat and used for connection. A cylinder perpendicularly extending to the upper portion of the fixed seat is arranged in the middle of the rotating seat. An inner stepped hole is formed in the middle of the fixed seat, and the cylinder can penetrate the inner stepped hole. A second bearing which is arranged on the outer portion of the cylinder in a sleeving manner is arranged in the inner stepped hole. Two symmetrical vertical supporting plates are arranged on the lower portion of the rotating seat. A rolling wheel is arranged between the vertical supporting plates. In this way, the high-bearing-capacity trundle achieves steering especially by means of cooperation of the first bearing and the second bearing, so that the rotating flexibility and the torsion strength are improved, and the bearing capacity can be improved. The manufactured high-bearing-capacity trundle is higher in durability and not prone to breakage in use.
High-bearing-capacity trundle
2015-12-16
Patent
Electronic Resource
English
IPC: | B60B VEHICLE WHEELS , Räder für Fahrzeuge |
Trundle, installation method of trundle and application structure of trundle
European Patent Office | 2021
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