Multi-angle adjustable towing hook

Abstract

The utility model discloses a multi-angle adjustable draw hook which comprises an installation frame, a fixing hole is formed in the left side of the installation frame in a penetrating mode, a lower swing hole, a locking hole and an upper swing hole are sequentially formed in the right side of the installation frame in a penetrating mode from bottom to top, one end of a lower swing arm is movably connected into the lower swing hole, and one end of an upper swing arm is movably connected into the upper swing hole. A movable frame is arranged at the other end of the lower swing arm and the other end of the upper swing arm, a threaded hole is formed in the upper surface of the movable frame in a penetrating mode, a traction ball is connected into the threaded hole in a threaded mode, the installation frame is connected with the lower swing arm and the upper swing arm through screws, and the lower swing arm and the upper swing arm are connected with the movable frame through screws. The angle of the tow hook can be adjusted according to the vehicle type and the type of a towed vehicle, so that the tow hook is convenient to use.

Description

Technical Field

[0001] The utility model relates to a traction hook which can be adjusted at multiple angles. Background Art

[0002] Trailer hooks are mainly installed on ordinary household vehicles and self-propelled RVs. Installing a trailer hook can tow a small trailer, a trailer RV, and of course, it can also be installed with some rear bicycle racks, luggage boxes, etc., which increases the vehicle's cargo space and gives people who like self-driving tours more travel options.

[0003] However, the towing angles of existing trailer hooks are all fixed, and there are many types and specifications of towed vehicles. It is difficult for ordinary trailer hooks to adjust the towing angle of the trailer hook according to the vehicle model and the type of towed vehicle, and the flexibility is poor, which makes the use of the trailer hook inconvenient. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides a multi-angle adjustable towing hook, which has the characteristics of adjusting the trailer hook according to the vehicle model and the type of the towed vehicle so as to facilitate use.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a multi-angle adjustable towing hook comprises a mounting frame, the mounting frame is in an L-shape, a fixing hole is penetrated by the left side of the mounting frame, and a lower swing hole, a locking hole and an upper swing hole are penetrated by the right side of the mounting frame from bottom to top in sequence, one end of the lower swing arm is movably connected in the lower swing hole, and one end of the upper swing arm is movably connected in the upper swing hole, and a movable frame is provided at the other ends of the lower swing arm and the upper swing arm. A first movable hole and a second movable hole are sequentially provided on the surface of the movable frame from bottom to top, the other end of the lower swing arm is movably connected to the first movable hole, and the other end of the upper swing arm is movably connected to the second movable hole, a threaded hole is penetrated by the upper surface of the movable frame, a towing ball is threadedly connected in the threaded hole, the mounting frame is connected to the lower swing arm and the upper swing arm by screws, and the lower swing arm and the upper swing arm are connected to the movable frame by screws.

[0006] Preferably: the upper swing arm includes a first upper plate, an upper connecting plate and a second upper plate, the surfaces of the first upper plate and the second upper plate are sequentially penetrated with a first mounting hole, a second mounting hole and a third connecting hole from bottom to top, the surface of the upper connecting plate is penetrated with an upper connecting hole, the surface of the upper connecting plate is provided with an upper positioning hole, the position of the upper connecting hole corresponds to the second mounting hole, and the position of the first mounting hole corresponds to the upper swing hole.

[0007] Preferably: the lower swing arm includes a first lower plate, a lower connecting plate and a second lower plate, the surfaces of the first lower plate and the second lower plate are sequentially penetrated with a first circular hole, a second circular hole, a third circular hole and a plurality of through holes from bottom to bottom, the plurality of through holes are arranged at equal angles with the third circular hole as the center, the surface of the lower connecting plate is penetrated with a lower connecting hole, the surface of the lower connecting plate is provided with a lower positioning hole, the position of the lower connecting hole corresponds to the second circular hole, the position of the first mounting hole corresponds to the lower swing hole, and one of the through holes corresponds to the locking hole.

[0008] Preferably: upper positioning columns are provided on opposite surfaces of the first upper plate and the upper connecting plate, and the two upper positioning columns are both located in the upper positioning holes; lower positioning columns are provided on opposite surfaces of the first lower plate and the second lower plate, and the two lower positioning columns are both located in the lower positioning holes.

[0009] Preferably, the surfaces of the mounting frame, the upper swing arm, the lower swing arm, the movable frame and the towing ball are all electroplated.

[0010] Preferably: a nut is provided at the lower end of the traction ball.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] When the utility model is in use, a fixing hole is penetrated through the left side of the mounting frame, and a lower swing hole, a locking hole and an upper swing hole are penetrated through the right side of the mounting frame from bottom to top in sequence, one end of the lower swing arm is movably connected in the lower swing hole, and one end of the upper swing arm is movably connected in the upper swing hole, and a movable frame is provided at the other ends of the lower swing arm and the upper swing arm, and a first movable hole and a second movable hole are sequentially provided on the surface of the movable frame from bottom to top, the other end of the lower swing arm is movably connected to the first movable hole, and the other end of the upper swing arm is movably connected to the second movable hole, and a threaded hole is penetrated through the upper surface of the movable frame, and a towing ball is threadedly connected in the threaded hole, so that the angle of the towing ball can be adjusted to adapt to different types of towed vehicles during use, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a front view of the main structure of the utility model;

[0015] Figure 2 This is a rear view of the main structure of the utility model;

[0016] Figure 3 It is an exploded schematic diagram of the main structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the upper swing arm structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the lower swing arm structure of the utility model;

[0019] Figure 6 This is an exploded schematic diagram of the upper swing arm of the utility model;

[0020] Figure 7 It is an exploded schematic diagram of the lower swing arm of the utility model.

[0021] In the figure: 1. mounting frame; 101. fixing hole; 102. lower swing hole; 103. locking hole; 104. upper swing hole; 2. upper swing arm; 21. first upper plate; 22. upper connecting plate; 23. second upper plate; 231. upper positioning column; 201. first mounting hole; 202. second mounting hole; 203. third connecting hole; 221. upper positioning hole; 222. upper connecting hole; 3. lower swing arm; 31. first lower plate; 32. lower connecting plate; 321. lower positioning hole; 322. lower connecting hole; 33. second lower plate; 331. lower positioning column; 301. first circular hole; 302. second circular hole; 303. third circular hole; 304. through hole; 4. movable frame; 401. first movable hole; 402. second movable hole; 403. threaded hole; 5. traction ball; 6. screw. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-7The utility model provides the following technical solutions: a multi-angle adjustable towing hook includes a mounting frame 1, the mounting frame 1 is L-shaped, a fixing hole 101 is penetrated on the left side of the mounting frame 1, and the fixing hole 101 is convenient for connecting the trailer, and a lower swing hole 102, a locking hole 103 and an upper swing hole 104 are penetrated on the right side of the mounting frame 1 from bottom to top, one end of the lower swing arm 3 is movably connected in the lower swing hole 102, and one end of the upper swing arm 2 is movably connected in the upper swing hole 104, and a movable frame 4 is provided at the other end of the lower swing arm 3 and the upper swing arm 2, which can be movably connected to the lower swing arm 3 and the upper swing arm 2. The surface of the movable frame 4 is provided with a first movable hole 401 and a second movable hole 402 in sequence from bottom to top, the other end of the lower swing arm 3 is movably connected to the first movable hole 401, and the other end of the upper swing arm 2 is movably connected to the second movable hole 402. A threaded hole 403 is penetrated through the upper surface of the movable frame 4, and a traction ball 5 is connected to the inner thread of the threaded hole 403, so as to facilitate the replacement of the traction ball 5 at a later time. The mounting frame 1 is connected to the lower swing arm 3 and the upper swing arm 2 by screws 6, and the lower swing arm 3 and the upper swing arm 2 are connected to the movable frame 4 by screws 6.

[0024] To facilitate the manufacturing of the upper swing arm 2 and the lower swing arm 3, the upper swing arm 2 includes a first upper plate 21, an upper connecting plate 22 and a second upper plate 23. The surfaces of the first upper plate 21 and the second upper plate 23 are sequentially penetrated with a first mounting hole 201, a second mounting hole 202 and a third connecting hole 203 from bottom to top. The surface of the upper connecting plate 22 is penetrated with an upper connecting hole 222. The surface of the upper connecting plate 22 is provided with an upper positioning hole 221. The position of the upper connecting hole 222 corresponds to the second mounting hole 202, and the position of the first mounting hole 201 corresponds to the upper swing hole 104.

[0025] The lower swing arm 3 includes a first lower plate 31, a lower connecting plate 32 and a second lower plate 33. The surfaces of the first lower plate 31 and the second lower plate 33 are sequentially penetrated with a first circular hole 301, a second circular hole 302, a third circular hole 303 and a plurality of through holes 304 from bottom to bottom. The plurality of through holes 304 are arranged at equal angles with the third circular hole 303 as the center. The surface of the lower connecting plate 32 is penetrated with a lower connecting hole 322. The surface of the lower connecting plate 32 is provided with a lower positioning hole 321. The position of the lower connecting hole 322 corresponds to the second circular hole 302. The position of the first mounting hole 201 corresponds to the lower swing hole 102. One of the through holes 304 corresponds to the locking hole 103.

[0026] See also Figure 1-7 , based on the first embodiment:

[0027] In order to avoid position deviation between the first upper plate 21 and the upper connecting plate 22 during connection, upper positioning posts 231 are provided on the opposite surfaces of the first upper plate 21 and the upper connecting plate 22, and the two upper positioning posts 231 are both located in the upper positioning holes 221. A preferred option is to provide lower positioning posts 331 on the opposite sides of the first lower plate 31 and the second lower plate 33, and the two lower positioning posts 331 are both located in the lower positioning holes 321, so as to facilitate positioning during installation.

[0028] In order to prevent the components from rusting during long-term use, the surfaces of the mounting frame 1, the upper swing arm 2, the lower swing arm 3, the movable frame 4 and the towing ball 5 are all electroplated.

[0029] In order to prevent the traction ball 5 from falling off from the movable frame 4 due to vibration, a nut is provided at the lower end of the traction ball 5, and the nut is located inside the movable frame 4.

[0030] Working principle:

[0031] First, assemble the first lower plate 31, the lower connecting plate 32 and the second lower plate 33 by means of screws 6. During assembly, the position of the lower connecting hole 322 corresponds to the second circular hole 302, and the two lower positioning columns 331 are both located in the lower positioning holes 321, thus completing the assembly of the lower swing arm 3.

[0032] Similarly, the first upper plate 21, the upper connecting plate 22 and the second upper plate 22 are assembled by means of screws 6. During assembly, the position of the upper connecting hole 222 corresponds to the second mounting hole 202, and the two upper positioning columns 231 are both located in the upper positioning holes 221, thus completing the assembly of the upper swing arm 2.

[0033] When the angle of the movable frame 4 needs to be adjusted, it is only necessary to pull out the screw 6 in the third circular hole 303 and directly rotate the movable frame 4. During rotation, the first mounting hole 201 rotates in the upper swing hole 104, the first circular hole 301 rotates in the lower swing hole 102, the third connecting hole 203 rotates in the second movable hole 402, and the first circular hole 301 rotates in the first movable hole 401. When the movable frame 4 is rotated to a suitable position, the screw 6 is inserted into the third circular hole 303 corresponding to the locking hole 103 to complete the locking.

[0034] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Multi-angle adjustable traction hook, characterized by: The invention comprises a mounting frame (1), wherein the mounting frame (1) is in an L-shape, a fixing hole (101) is penetrated on the left side of the mounting frame (1), a lower swing hole (102), a locking hole (103) and an upper swing hole (104) are penetrated on the right side of the mounting frame (1) in sequence from bottom to top, one end of a lower swing arm (3) is movably connected in the lower swing hole (102), one end of an upper swing arm (2) is movably connected in the upper swing hole (104), a movable frame (4) is provided at the other ends of the lower swing arm (3) and the upper swing arm (2), and a surface of the movable frame (4) is sequentially provided with a first movable The movable frame (4) comprises a movable hole (401) and a second movable hole (402), the other end of the lower swing arm (3) is movably connected to the first movable hole (401), the other end of the upper swing arm (2) is movably connected to the second movable hole (402), a threaded hole (403) is provided through the upper surface of the movable frame (4), a traction ball (5) is connected to the inner thread of the threaded hole (403), the mounting frame (1) is connected to the lower swing arm (3) and the upper swing arm (2) by screws (6), and the lower swing arm (3) and the upper swing arm (2) are connected to the movable frame (4) by screws (6).

2. The multi-angle adjustable towing hook according to claim 1, characterized in that: The upper swing arm (2) comprises a first upper plate (21), an upper connecting plate (22) and a second upper plate (23); the surfaces of the first upper plate (21) and the second upper plate (23) are penetrated with a first mounting hole (201), a second mounting hole (202) and a third connecting hole (203) in sequence from bottom to top; the surface of the upper connecting plate (22) is penetrated with an upper connecting hole (222); the surface of the upper connecting plate (22) is provided with an upper positioning hole (221); the position of the upper connecting hole (222) corresponds to the second mounting hole (202); the position of the first mounting hole (201) corresponds to the upper swing hole (104).

3. The multi-angle adjustable towing hook according to claim 2, characterized in that: The lower swing arm (3) comprises a first lower plate (31), a lower connecting plate (32) and a second lower plate (33); the surfaces of the first lower plate (31) and the second lower plate (33) are penetrated with a first circular hole (301), a second circular hole (302), a third circular hole (303) and a plurality of through holes (304) in sequence from bottom to bottom; the plurality of through holes (304) are arranged at equal angles with the third circular hole (303) as the center of the circle; a lower connecting hole (322) is penetrated with the surface of the lower connecting plate (32); a lower positioning hole (321) is provided on the surface of the lower connecting plate (32); the position of the lower connecting hole (322) corresponds to the second circular hole (302); the position of the first mounting hole (201) corresponds to the lower swing hole (102); and one of the through holes (304) corresponds to the locking hole (103).

4. The multi-angle adjustable traction hook according to claim 3, characterized in that: Upper positioning columns (231) are provided on opposite surfaces of the first upper plate (21) and the upper connecting plate (22), and the two upper positioning columns (231) are both located in the upper positioning holes (221); lower positioning columns (331) are provided on opposite surfaces of the first lower plate (31) and the second lower plate (33), and the two lower positioning columns (331) are both located in the lower positioning holes (321).

5. The multi-angle adjustable towing hook according to claim 1, characterized in that: The surfaces of the mounting frame (1), the upper swing arm (2), the lower swing arm (3), the movable frame (4) and the towing ball (5) are all electroplated.

6. The multi-angle adjustable towing hook according to claim 1, characterized in that: A nut is provided at the lower end of the traction ball (5).

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