Back to results
US 12,605,975 B1Granted
Trailer assembly
AssigneeFoshan Robin Hood Metal Products Co., Ltd.
InventorsYuping Lv, Jianwen Lv
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeFoshan Robin Hood Metal Products Co., Ltd.
InventorsYuping Lv, Jianwen Lv
Estimating the term…
The present invention relates to a trailer assembly, which includes a traction ball head assembly, wherein the traction ball head assembly includes a traction ball seat and a traction ball connection assembly, the traction ball seat is provided with a connection through-hole for the traction ball connection assembly to pass through, a first keyway is formed on a hole wall of the connection through-hole, the traction ball connection assembly includes a traction ball head and a limiting clamping key, the traction ball head is provided with a second keyway matched with the first keyway, at least a portion of the traction ball head passes through the connection through-hole, one end of the traction ball head is threadingly locked and fixed to the traction ball seat, and circumferential limitation is achieved by engagement between the limiting clamping key and the keyways.
A trailer assembly, comprising a traction ball head assembly, wherein the traction ball head assembly comprises a traction ball seat and a traction ball connection assembly detachably mounted on the traction ball seat, the traction ball seat is provided with a connection through-hole for the traction ball connection assembly to pass through, a first keyway is formed on a hole wall of the connection through-hole, the traction ball connection assembly comprises a traction ball head and a limiting clamping key, the traction ball head is provided with a second keyway matched with the first keyway, at least a portion of the traction ball head passes through the connection through-hole, one end of the traction ball head is threadingly locked and fixed to the traction ball seat, and the traction ball head and the traction ball seat are circumferentially limited through engagement among the limiting clamping key, the first keyway, and the second keyway;
A trailer assembly, comprising a traction ball head assembly, wherein the traction ball head assembly comprises a traction ball seat and a traction ball connection assembly detachably mounted on the traction ball seat, the traction ball seat is provided with a connection through-hole for the traction ball connection assembly to pass through, a first keyway is formed on a hole wall of the connection through-hole, the traction ball connection assembly comprises a traction ball head and a limiting clamping key, the traction ball head is provided with a second keyway matched with the first keyway, at least a portion of the traction ball head passes through the connection through-hole, one end of the traction ball head is threadingly locked and fixed to the traction ball seat, and the traction ball head and the traction ball seat are circumferentially limited through engagement among the limiting clamping key, the first keyway, and the second keyway;
A trailer assembly, comprising a traction ball head assembly, wherein the traction ball head assembly comprises a traction ball seat and a traction ball connection assembly detachably mounted on the traction ball seat, the traction ball seat is provided with a connection through-hole for the traction ball connection assembly to pass through, a first keyway is formed on a hole wall of the connection through-hole, the traction ball connection assembly comprises a traction ball head and a limiting clamping key, the traction ball head is provided with a second keyway matched with the first keyway, at least a portion of the traction ball head passes through the connection through-hole, one end of the traction ball head is threadingly locked and fixed to the traction ball seat, and the traction ball head and the traction ball seat are circumferentially limited through engagement among the limiting clamping key, the first keyway, and the second keyway;
Dependencies are inferred from the claim text.