US 12,403,955 B2
Foldable trailer steering system
Haicheng Luo, Guangdong (CN)
Assigned to Shenzhen Chepinyi Technology Co., Ltd., Shenzhen (CN)
Filed by Shenzhen Chepinyi Technology Co., Ltd., Guangdong (CN)
Filed on Sep. 9, 2024, as Appl. No. 18/829,210.
Application 18/829,210 is a continuation in part of application No. 18/593,976, filed on Mar. 3, 2024, granted, now 12,116,031.
Application 18/593,976 is a continuation of application No. PCT/CN2024/078680, filed on Feb. 27, 2024.
Claims priority of application No. 202320389881.5 (CN), filed on Mar. 6, 2023; application No. 202323230532.8 (CN), filed on Nov. 28, 2023; application No. 202323480439.2 (CN), filed on Dec. 19, 2023; and application No. 202420076798.7 (CN), filed on Jan. 11, 2024.
Prior Publication US 2024/0425111 A1, Dec. 26, 2024
Int. Cl. B62D 13/04 (2006.01); B62D 63/06 (2006.01)
CPC B62D 13/04 (2013.01) [B62D 63/061 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A foldable trailer steering system, comprising a foldable frame, wherein the foldable frame is a gathering frame; either side of a bottom of one end of the foldable frame is rotatably connected to a steering wheel respectively, a steering structure is arranged between the two steering wheels, and the steering structure can be vertically and foldably arranged for folding with the foldable frame; at least one end of the steering structure is rotatably connected to the corresponding steering wheel, and the steering structure is further connected to a steering rod assembly; one end of the foldable frame where the steering wheels are located is further rotatably connected to a support assembly, the support assembly is vertically folded with the foldable frame, the steering rod assembly is rotatably connected to the support assembly, and the steering rod assembly is capable of rotating vertically and horizontally relative to the support assembly; and the steering rod assembly controls the steering wheels to rotate horizontally through the steering structure, and when the foldable frame is folded, the support assembly drives the steering rod assembly to move vertically, and the steering rod assembly drives the steering structure to fold;
wherein the steering structure comprises a first connecting member, the first connecting member is rotatably connected to a swing steering arm, and the swing steering arm is fixedly connected to the steering rod assembly; and one end of the first connecting member away from one end of the swing steering arm is rotatably connected to a second connecting member, and the second connecting member is rotatably connected to the steering wheels.