Tow hook with good stability
By designing limiting components and conversion sleeves, the problems of trailer hook height adjustment and connection adaptability were solved, thereby improving the stability and applicability of the trailer hook.
Patent Information
- Application Number
- CN202520543612.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-26
AI Technical Summary
The existing trailer hitch has no adjustable hook height, resulting in wobbling and instability. The ball joint is fixed and cannot be disassembled, and the mismatch at the connection point leads to poor stability.
A stable trailer hook was designed, which allows for the disassembly and height adjustment of the connecting plate through a limiting component. The towing ball head is detachable, and a conversion sleeve is provided to adapt to different vehicle models.
It achieves adjustable trailer hitch height, stable connection, detachable ball joint, adaptability to different vehicle models, and improves the overall stability and applicability of the trailer hitch.
Smart Images
Figure CN223791271U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of trailer technology, and more specifically, to a trailer hook with good stability. Background Technology
[0002] Trailer hooks are mainly used for towing trailers and are mostly installed at the front or rear of a vehicle. Trailer hooks installed at the front of a vehicle primarily function as passive towing devices, meaning that when the vehicle loses power and cannot move, it can be towed by other vehicles via the front trailer hook. Trailer hooks installed at the rear of a vehicle primarily function as active towing devices.
[0003] The existing trailer hooks have the following defects: (1) Most of the current trailer hooks are fixed and cannot be adjusted according to the needs of use. During the height adjustment process, there will be a gap between the trailer hook and the L-shaped connecting frame, which will cause the trailer hook to shake and affect its stability.
[0004] (2) The traditional towing ball head and the connecting plate are welded as a whole, which makes the towing ball head fixedly connected to the connecting plate and cannot be disassembled or replaced with a suitable towing ball head as needed.
[0005] (3) The square hole slots at the connection points may vary depending on the car brand. Mismatch may easily occur when the L-shaped connecting bracket is connected to the square hole slots on the car. A tow hook with good stability is needed to solve this problem. Utility Model Content
[0006] The purpose of this invention is to provide a trailer hitch with good stability to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a trailer hitch with good stability, comprising an L-shaped connecting frame, a protruding block fixedly installed on one side of the L-shaped connecting frame, a conversion sleeve for fitting the protruding block on one side of the protruding block, wherein a fastening plate is installed on the bottom end of the conversion sleeve and the protruding block, the L-shaped connecting frame is provided with multiple adjustment holes, and the adjustment holes are aligned with the holes on the connecting plates on both sides, the adjustment holes and the connecting plates on both sides are detached and assembled by a limiting component, a third bolt and a fastener are provided in the middle of the connecting plates on both sides, the third bolt is locked and connected by a locking head, and a towing ball head is installed on the side of the connecting plates on both sides away from the L-shaped connecting frame.
[0008] As a preferred technical solution of this utility model, a lock head is installed on the limiting component, the lock head has a keyhole for inserting a key, and the lock head is sleeved with one end of the threaded rod.
[0009] As a preferred embodiment of this utility model, a pin is installed on the side of the threaded rod away from the lock head, and the threaded rod passes through the L-shaped connecting frame and the connecting plates on both sides and is then locked by a hexagonal nut thread.
[0010] As a preferred technical solution of this utility model, two sets of round holes are provided between the towing ball head and the connecting plates on both sides, and the two sets of round holes are locked by long bolts and round nuts.
[0011] As a preferred technical solution of this utility model, the top of the connecting plates on both sides are equipped with pedals, and the pedals are symmetrically designed and locked with screws.
[0012] As a preferred embodiment of this utility model, the bottom end of the fastening plate is connected to and passes through the holes on both sides of the fastening plate by a U-bolt, and the head end of the U-bolt passing through the fastening plate is locked by a first nut.
[0013] As a preferred technical solution of this utility model, the protruding block and the fastening plate are respectively provided with a first opening and a second opening, and the protruding block is sleeved on the fastening plate so that its first opening and second opening coincide, and then locked by a long bolt and a round nut.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] (1) This utility model is a trailer hook with good stability. The trailer hook L-shaped connecting frame and the connecting plates on both sides are connected by a limiting component. The connecting plates on both sides can be disassembled and assembled by loosening the hexagonal nut on the limiting component and pulling out the threaded rod on the pin. The height can be adjusted by adjusting the position of the hole on the connecting plate on both sides and the adjustment hole. In order to prevent the gap between the L-shaped connecting frame and the connecting plate from affecting its stability, the stability of the connecting plate and the L-shaped connecting frame is adjusted by adjusting the tightness of the third bolt and the locking head.
[0016] (2) This utility model is a trailer hook with good stability. The trailer hook is provided with a towing ball head installed between the connecting plates on both sides. The towing ball head is locked to the connecting plates on both sides by the second bolt and the second nut. The second bolt and the second nut can be removed to make the towing ball head detachable.
[0017] (3) This utility model is a trailer hook with good stability. When the protruding block on one side of the L-shaped connecting frame of this device is compatible with the square hole groove on the vehicle body, the protruding block can be directly inserted into the square hole groove on the vehicle body and inserted into the fastening plate at the bottom through the U-bolt. If they do not match, the connection of different vehicle models can be achieved by adding a conversion sleeve. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of a trailer hitch with good stability according to an embodiment of the present utility model;
[0020] Figure 2 This is a front view of a trailer hitch with good stability according to an embodiment of the present utility model;
[0021] Figure 3 This is a top view of a trailer hitch with good stability according to an embodiment of the present utility model;
[0022] Figure 4 This is a structural schematic diagram of a trailer hitch limiting component with good stability according to an embodiment of the present utility model.
[0023] Figure label:
[0024] 1. L-shaped connecting bracket; 2. Protrusion block; 3. First opening; 4. Converter sleeve; 5. Second opening; 6. Fastening plate; 7. U-bolt; 8. Adjustment hole; 9. Connecting plate; 10. Limiting assembly; 11. Towing ball head; 12. Pedal; 13. First bolt; 14. Locking head; 15. First nut; 16. Second bolt; 17. Second nut; 18. Third bolt; 19. Fastener; 20. Lock head; 21. Keyhole; 22. Threaded rod; 23. Hex nut; 24. Pin. Detailed Implementation
[0025] The utility model will now be further described with reference to the accompanying drawings and specific embodiments:
[0026] Example 1
[0027] refer to Figures 1 to 3Embodiment 1 includes an L-shaped connecting frame 1. A protruding block 2 is fixedly installed on one side of the L-shaped connecting frame 1. A conversion sleeve 4 is installed on one side of the protruding block 2 to engage with it. A fastening plate 6 is installed on the bottom end of the conversion sleeve 4 and the protruding block 2. The L-shaped connecting frame 1 has multiple adjustment holes 8, which are aligned with holes on the two side connecting plates 9. The adjustment holes 8 and the two side connecting plates 9 are detached and reassembled by a limiting component 10. A third bolt 18 and a fastener 19 are provided in the middle of the two side connecting plates 9. The third bolt 18 is locked in place by a locking head 14. The two side connecting plates... A towing ball head 11 is installed on the side of the L-shaped connecting frame 1 away from the 9. Two sets of round holes are opened between the towing ball head 11 and the two connecting plates 9 on both sides. The two sets of round holes are locked by long bolts and round nuts. The bottom end of the fastening plate 6 is inserted through the holes on both sides of the fastening plate 6 by U-bolts 7. The U-bolts 7 are locked by the first nut 15 through the head end of the fastening plate 6. The protrusion 2 and the fastening plate 6 are respectively provided with a first opening 3 and a second opening 5. The protrusion 2 is sleeved on the fastening plate 6 so that its first opening 3 and second opening 5 coincide and are locked by long bolts and round nuts.
[0028] In this embodiment, the protruding block 2 on one side of the L-shaped connecting bracket 1 can be inserted into the square hole slot on the vehicle body. The U-bolt 7 is inserted into the fastening plate 6 at the bottom and locked with the first nut 15 to ensure the stability of the connection between the protruding block 2 and the square hole slot on the vehicle body. For square hole slots of different vehicle models, the connection of different models can be achieved by setting the conversion sleeve 4.
[0029] Example 2
[0030] refer to Figure 4 Example 2 is described below. This embodiment further describes Example 1 and includes a limiting component 10. A lock head 20 is installed on the limiting component 10. The lock head 20 has a keyhole 21 for inserting a key. The lock head 20 is sleeved with one end of a threaded rod 22. A pin 24 is installed on the side of the threaded rod 22 away from the lock head 20. The threaded rod 22 passes through the L-shaped connecting frame 1 and the two side connecting plates 9 and is then threadedly locked by a hexagonal nut 23. A pedal 12 is installed at the top of the connecting plate 9. The pedal 12 is symmetrically designed and threadedly locked by screws.
[0031] In this embodiment, the connection plates 9 on both sides can be disassembled and assembled by loosening the hexagonal nut 23 and pulling out the threaded rod 22 on the pin 24. The height can be adjusted by adjusting the position of the holes on the connection plates 9 on both sides and the adjustment hole 8. The pedals 12 installed on the connection plates 9 on both sides allow the user to stand on the pedals 12 to place items in places that are out of reach on the vehicle.
[0032] In practical applications, the L-shaped connecting frame 1 of the trailer hook in this device has multiple adjustment holes 8. The connecting plates 9 at both ends are connected to the L-shaped connecting frame 1 by inserting the limiting component 10. The lock head 20 on the limiting component 10 can be unlocked by turning the key into the keyhole 21. One end of the lock head 20 is a threaded rod 22 locked by a hexagonal nut 23. By loosening the hexagonal nut 23 and pulling out the threaded rod 22 on the pin 24, the connecting plates 9 can be disassembled and assembled. The height can be adjusted by aligning the holes on the connecting plates 9 with the adjustment holes 8. A fastener 19 connected by a third bolt 18 is installed in the middle of the connecting plates 9. The stability of the connecting plates 9 and the L-shaped connecting frame 1 is adjusted by adjusting the tightness of the third bolt 18 and the locking head 14 to prevent the L-shaped connecting frame 1 from collapsing with the connecting plates 9. The gaps between the two sides affect its stability. A towing ball head 11 is installed between the connecting plates 9 on both sides of the trailer hook. The towing ball head 11 is divided into upper and lower ball heads of different sizes. The towing ball head 11 is locked to the connecting plates 9 on both sides by the second bolt 16 and the second nut 17, which makes the towing ball head 11 detachable and allows it to be replaced with the required size of towing ball head 11 as needed. The protrusion 2 on one side of the L-shaped connecting frame 1 is connected to the square hole slot on the vehicle body. If the protrusion 2 is compatible with the square hole slot on the vehicle body, the protrusion 2 can be directly inserted into the square hole slot on the vehicle body and locked by inserting the U-bolt 7 into the fastening plate 6 at the bottom and cooperating with the first nut 15 to ensure the stability of the connection between the protrusion 2 and the square hole slot on the vehicle body. If the square hole slot on the vehicle body does not match the protrusion 2, a matching conversion sleeve 4 can be inserted to achieve the connection of different vehicle models.
[0033] In the description of this utility model, it should be noted that the terms "top," "bottom," "one side," "the other side," "front," "back," "middle part," "inner," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A trailer hitch having improved stability, characterized in that The utility model provides a kind of L-shaped connecting frame (1), convex block (2) is fixedly installed on one side of the L-shaped connecting frame (1), conversion sleeve (4) is installed on one side of the convex block (2), wherein conversion sleeve (4) is equipped with fastening plate (6) with the bottom end of convex block (2), a plurality of adjusting holes (8) are set up on the L-shaped connecting frame (1), and adjusting hole (8) is aligned with the hole on both sides connecting plate (9), and adjusting hole (8) is realized dismounting by limiting component (10) between both sides connecting plate (9), third bolt (18) and fastener (19) are set up in both sides connecting plate (9) middle, the third bolt (18) is locked by locking head (14), and towing ball head (11) is installed on the side away from L-shaped connecting frame (1) between both sides connecting plate (9).
2. The trailer hitch of claim 1, wherein, The locking head (20) is installed on the limiting component (10), the keyhole (21) for inserting key is set up on the locking head (20), and the locking head (20) is sleeved with the one end of threaded insertion rod (22).
3. The trailer hitch of claim 2, wherein: The side away from the locking head (20) of the threaded insertion rod (22) is installed with the bolt (24), and the threaded insertion rod (22) is screwed and locked by the hexagon nut (23) after penetrating L-shaped connecting frame (1) and both sides connecting plate (9).
4. The trailer hitch of claim 1, wherein: Two groups of round holes are set up between the towing ball head (11) and both sides connecting plate (9), and the two groups of round holes are locked by long bolt and round nut.
5. The trailer hitch of claim 1, wherein: Both sides connecting plate (9) top is installed with footboard (12), and footboard (12) is symmetrically designed and is screwed and locked by screw.
6. The trailer hitch of claim 1, wherein, The bottom of the fastening plate (6) is inserted and penetrates the holes on both sides of the fastening plate (6) by U-shaped bolt (7), and the head end of the U-shaped bolt (7) is locked by the first nut (15) after penetrating the fastening plate (6).
7. The trailer hitch of claim 1, wherein: First aperture (3) and second aperture (5) are set up on the convex block (2) and the fastening plate (6) respectively, and the first aperture (3) and the second aperture (5) are locked by long bolt and round nut after the convex block (2) is sleeved on the fastening plate (6) and coincides.