Towing hitch ball mounting structure with anti-slip positioning
By setting multiple positioning holes and a linkage turntable in the trailer traction seat mounting structure, along with a linkage lock pin, guide groove, and return spring, the problem of the trailer traction seat sliding or shifting due to vibration and impact after adjustment is solved, achieving stability in height positioning and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINGZHOU HENGBANG MASCH CO LTD
- Filing Date
- 2026-06-15
- Publication Date
- 2026-07-17
AI Technical Summary
The existing trailer towing seat is prone to slippage or displacement due to vibration and impact loads after adjustment, resulting in insufficient height positioning stability.
The towing bracket traction seat installation structure with anti-slip positioning is adopted. Multiple positioning holes are set on both sides of the fixed frame, and locking pins are set on both sides of the mounting seat. The linkage turntable and the locking pins work together to realize the synchronous operation of the locking pins on both sides. Combined with the design of guide groove and return spring, the mounting seat is stably positioned after adjustment.
It improves the height positioning stability of the trailer towing seat during agricultural towing, reduces the risk of slippage or deviation caused by vibration and impact, and is easy to operate with high consistency.
Smart Images

Figure CN122397401A_ABST