一种机动车用拖车钩角度可调机构
By designing an adjustable trailer hook angle mechanism, the problems of cumbersome operation and safety hazards caused by the fixed angle of traditional trailer hooks are solved, achieving a stable connection and improved safety during towing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI RUOHAI AUTO PARTS CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-17
AI Technical Summary
The existing trailer hooks have a fixed hook angle, which cannot be adjusted according to the hook position of the towed vehicle and the towing scenario. This makes the operation cumbersome. When the angle is mismatched, the trailer rope chain will be subjected to uneven force, which is easy to wear or break, and may even cause safety accidents.
Design a trailer hitch angle adjustable mechanism for motor vehicles, including a trailer arm, a threaded column, a trailer hitch adjustment device, a first locking device, and a second locking device. The direction and position of the trailer hitch are adjusted by rotating the threaded column, and reliable installation and locking are achieved by the locking devices.
It simplifies trailer operation, avoids uneven tension on the rope chain due to mismatched angles, improves the stability and safety of the connection, and reduces the risk of loosening.
Smart Images
Figure CN224510779U_ABST
Abstract
Claims
1. A mechanism for adjusting the angle of a trailer hitch for a motor vehicle, characterized by: The device includes a main body (1), which comprises a trailer boom (2), a threaded column (3), an adjusting trailer hook device (4), a first locking device (5), a second locking device (6), and a mounting base device (7). The trailer boom (2), the threaded column (3), and the mounting base device (7) are smoothly transitioned and integrally formed. The mounting base device (7) is located at the left end of the trailer boom (2), and the threaded column (3) is located at the right end of the trailer boom (2). The adjusting trailer hook device (4), the first locking device (5), and the second locking device (6) are all sleeved on the threaded cylinder (3). The first locking device (5) is located at the left end of the adjusting trailer hook device (4), and the second locking device (6) is located at the right end of the adjusting trailer hook device (4). A mounting bolt (25) passes through the adjusting trailer hook device (4), the first locking device (5), and the second locking device (6). A locking nut (26) is installed at the other end of the mounting bolt (25). The adjustable trailer hook device (4) includes an adjustable mounting base (8), a mounting block (9), an adjustable hook (10), and a damping shaft (11). The adjustable mounting base (8) and the mounting block (9) are smoothly transitioned and integrally formed. The mounting block (9) is located at the top of the adjustable mounting base (8). The top of the mounting block (9) is provided with a mounting groove (12). The damping shaft (11) is installed in the mounting groove (12). The bottom of the adjustable hook (10) is sleeved on the damping shaft (11). The adjustable hook (10) is provided with a spring shaft limiting block (13). The center of the adjustable mounting base (8) is provided with a main mounting thread (14), and locking holes (15) are provided at all four corners.
2. A trailer hitch angle adjustment mechanism for a motor vehicle as claimed in claim 1, wherein: Both the right end and the left end of the first locking device (5) are attached with fitting pads (18).
3. A trailer hitch angle adjustment mechanism for a motor vehicle as claimed in claim 1, wherein: Both the first locking device (5) and the first clamping device (5) include a first clamping block (16) and a rotating rod (17). The first clamping block (16) has a rectangular structure. The rotating rod (17) is provided in a set, and the set of rotating rods (17) is located at the left end and the right end of the first clamping block (16) respectively. The rotating rod (17) has a cylindrical structure. The first clamping block (16) also has a main mounting thread (14) at the center and locking holes (15) at the four corners.
4. A trailer hitch angle adjustment mechanism for a motor vehicle as claimed in claim 1, wherein: The trailer boom (2) has a rectangular structure. Several sets of reinforcing and weight-reducing grooves (19) are provided on the surface of the trailer boom (2). The reinforcing and weight-reducing grooves (19) have an H-shaped structure. Several sets of reinforcing blocks (20) are provided inside the reinforcing and weight-reducing grooves (19). The reinforcing blocks (20) have a rectangular structure.
5. The adjustable angle mechanism for a trailer hitch for a motor vehicle according to claim 1, characterized in that: The mounting base device (7) includes a connecting base block (21) and a strength block (22). There are two sets of strength blocks (22). One end of each set of strength blocks (22) is welded to the connecting base block (21), and the other end is welded to the trailer boom (2). The strength block (22) has a triangular shape. The surface of the strength block (22) is provided with a strength groove (23). The strength groove (23) has a triangular shape. Seat holes (24) are provided at the four corners of the surface of the connecting base block (21).