Tow hook for automobile traction

Abstract

The utility model discloses a tow hook for automobile traction, which is applied to the technical field of tow hooks and comprises a hook seat, two sides of the bottom of the hook seat are respectively and rotatably connected with a first hook and a second hook, the inside of the hook seat is bolted with a motor, and the output end of the motor is bolted with a threaded shaft which is rotatably connected with the hook seat. The second linear rack is driven to slide towards the inside of the hook seat, and the second linear rack can pull the hook seat and the first hook respectively, so that the hook seat and the first hook expand outwards. And therefore, the hooked rope automatically falls off, the rope does not need to be separated manually, the efficiency is improved, and actual use is facilitated. The direction is adjusted through rotation of the rotating disc, the hook seat deflects by an angle in the direction by means of mutual rotation of the fixing head and the connecting plate, and inclined tension is changed into linear tension. Deformation caused by pulling the first hook and the second hook obliquely can be avoided, and the service life of the tow hook is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of trailer hooks, in particular to a trailer hook used for automobile towing. Background Art

[0002] The trailer hook is mainly used for towing vehicles and pulling other objects for movement. The trailer hook usually consists of two parts: a fixed bracket and a hook.

[0003] Currently, a Chinese utility model with publication number CN221851645U discloses a trailer hook that is easy to disassemble. When the rope of the existing trailer hook is hung on the hook, the rope is very easy to fall off. Although installing a ball at the end of the hook can reduce the risk of the rope automatically falling off, it also means that the rope needs to be removed manually, and the rope cannot automatically fall off from the hook, which is less practical. At the same time, the existing trailer hook is generally fixedly installed at the rear of the vehicle. When the vehicle turns, the linear tension brought by the rope will become tilted. Although the rope can slide to one side inside the hook, there will still be a large tilting tension. Over time, it can cause the hook and the bracket to form a shape, causing the hook to deform and shortening the service life of the trailer hook. Utility Model Content

[0004] The purpose of the utility model is to provide a trailer hook for automobile towing, which has the advantages of being able to automatically detach the rope on the trailer hook and preventing the trailer hook from being skewed and deformed due to tilting pulling force.

[0005] The above-mentioned technical objectives of the present utility model are achieved through the following technical solutions: a trailer hook for automobile towing, comprising a hook seat, wherein both sides of the bottom of the hook seat are rotatably connected to the first hook and the second hook respectively, the inside of the hook seat is bolted with a motor, the output end of the motor is bolted to a threaded shaft rotatably connected to the hook seat, the surface of the threaded shaft is threadedly sleeved with a sliding block slidably connected to the hook seat, both sides of the sliding block are bolted to a first linear rack, the ends of the first hook and the second hook tops away from each other are provided with a second linear rack slidably connected to the hook seat, both sides of the inside of the hook seat are rotatably connected to a disc gear meshing with the first linear rack and the second linear rack, the ends of the first hook and the second hook tops away from each other are provided with a slot, and the bottom of the second linear rack is bolted to a rotating head rotatably connected to the slot.

[0006] Using this technical solution, by driving the second linear rack to slide inwardly toward the hook seat, the second linear rack pulls the hook seat and the first hook separately, causing them to expand outward. This automatically releases the hooked rope, eliminating the need for manual detachment, improving efficiency and facilitating practical use. By rotating the rotary disk to adjust the orientation, and by rotating the fixed head and connecting plate relative to each other, the pull applied by the hook seat is deflected, converting the inclined pull into a linear force. This prevents the first and second hooks from being pulled crooked and deformed, thereby extending the useful life of the trailer hook.

[0007] The utility model is further configured as follows: a mounting plate is provided on the top of the hook seat, a rotating disk is rotatably connected inside the mounting plate, two fixed heads welded to the hook seat are symmetrically provided between the hook seat and the mounting plate, and a connecting plate welded to the bottom of the rotating disk is rotatably connected between the two fixed heads.

[0008] By adopting the above technical solution, the inclined pulling force is converted into a linear pulling force, which can avoid the first hook and the second hook being pulled crooked and deformed.

[0009] The utility model is further configured as follows: the inner surfaces of the first hook and the second hook are both provided with anti-slip grooves.

[0010] By adopting the above technical solution, the internal friction force is increased and the stability of the trailer hook is improved.

[0011] The utility model is further configured as follows: a ventilation hole used in conjunction with the motor is opened on one side of the hook seat close to the motor.

[0012] The above technical solution is adopted to facilitate ventilation and heat dissipation of the motor and ensure working stability.

[0013] The utility model is further configured as follows: both sides of the interior of the mounting plate are rotatably connected with balls that are slidably connected to the rotating disk.

[0014] By adopting the above technical solution, the friction of the rotating disk rotating inside the mounting plate is reduced, and the rotation stability is improved.

[0015] The utility model is further configured as follows: both sides of the interior of the mounting plate are threadedly connected with mounting bolts.

[0016] By adopting the above technical solution, it is convenient to bolt the mounting plate to the rear of the vehicle using mounting bolts, thereby installing the trailer hook.

[0017] The utility model is further configured as follows: a sealing ring which is rotatably sleeved on the surface of the connecting plate and is bonded to the mounting plate.

[0018] The above technical solution is adopted to improve the sealing performance and prevent moisture from entering the interior to cause rust, thereby making it difficult to rotate.

[0019] In summary, the present invention has the following beneficial effects:

[0020] 1. By driving the second linear rack to slide into the hook seat, the second linear rack can pull the hook seat and the first hook respectively, causing the hook seat and the first hook to expand outward. This allows the hooked rope to automatically fall off, eliminating the need for manual rope detachment, improving efficiency and facilitating practical use.

[0021] 2. By rotating the rotary disc to adjust the direction, the fixed head and connecting plate rotate relative to each other, thereby deflecting the pulling force in the direction of the hook seat, turning the inclined pulling force into a straight pulling force. This can prevent the first and second hooks from being pulled crooked and deformed, thereby extending the service life of the trailer hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0024] Figure 3 This utility model Figure 2 Enlarged view of point A in .

[0025] Figure markings: 1. Hook seat; 2. First hook; 3. Second hook; 4. Motor; 5. Threaded shaft; 6. Sliding block; 7. First linear rack; 8. Second linear rack; 9. Disc gear; 10. Slot; 11. Rotating head; 12. Mounting plate; 13. Fixed head; 14. Connecting plate; 15. Rotating disk; 16. Anti-slip groove; 17. Ventilation hole; 18. Ball; 19. Mounting bolt; 20. Sealing ring. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings.

[0027] Example 1:

[0028] refer to Figure 1 、 Figure 2 、 Figure 3A trailer hook for automobile towing includes a hook seat 1, with a first hook 2 and a second hook 3 rotatably connected on both sides of the bottom of the hook seat 1, a motor 4 bolted to the inside of the hook seat 1, a threaded shaft 5 rotatably connected to the hook seat 1 bolted to the output end of the motor 4, a sliding block 6 slidably connected to the hook seat 1 threadedly sleeved on the surface of the threaded shaft 5, a first linear rack 7 bolted to both sides of the sliding block 6, a second linear rack 8 slidably connected to the hook seat 1 provided at the ends of the tops of the first hook 2 and the second hook 3 away from each other, a disc gear 9 rotatably connected to the first linear rack 7 and the second linear rack 8, a slot 10 is provided at the ends of the tops of the first hook 2 and the second hook 3 away from each other, and a rotating head 11 rotatably connected to the slot 10 is bolted to the bottom of the second linear rack 8. By driving the second linear rack 8 to slide toward the inside of the hook seat 1, the second linear rack 8 can pull the hook seat 1 and the first hook 2 respectively, causing the hook seat 1 and the first hook 2 to expand outward. Thereby, the hooked rope is automatically released without manual operation, thereby improving efficiency and facilitating practical use.

[0029] refer to Figure 1 、 Figure 2 The inner surfaces of the first hook 2 and the second hook 3 are both provided with anti-slip grooves 16. This increases the internal friction and improves the stability of the trailer hook.

[0030] refer to Figure 2 A ventilation hole 17 is provided on one side of the hook seat 1 near the motor 4 to cooperate with the motor 4. This facilitates ventilation and heat dissipation of the motor 4 and ensures working stability.

[0031] A brief description of the usage process: By turning on the motor 4, the threaded shaft 5 rotates and engages with the threaded meshing of the sliding block 6, thereby driving the sliding block 6 to slide back and forth inside the hook seat 1. The sliding block 6 then drives the first linear rack 7 to engage with the disc gear 9, causing the disc gear 9 to mesh and transmit with the second linear rack 8, thereby driving the second linear rack 8 to slide back and forth inside the hook seat 1. When the second linear rack 8 slides toward the inside of the hook seat 1, the second linear rack 8 can be rotated through the rotating head 11 and the slot 10, pulling the hook seat 1 and the first hook 2 respectively, causing the hook seat 1 and the first hook 2 to expand outward, thereby automatically removing the hooked rope. Conversely, when the second linear rack 8 slides toward the outside of the hook seat 1, it can push the hook seat 1 and the first hook 2 closer together, hooking the rope inside.

[0032] Example 2:

[0033] refer to Figure 1 、 Figure 2The top of the hook seat 1 is provided with a mounting plate 12, the inside of the mounting plate 12 is rotatably connected with a rotating disc 15, two fixed heads 13 which are welded with the hook seat 1 are symmetrically arranged between the hook seat 1 and the mounting plate 12, and a connecting plate 14 which is welded with the bottom of the rotating disc 15 is rotatably connected between the two fixed heads 13. The orientation is adjusted by rotating the rotating disc 15, and the fixed head 13 and the connecting plate 14 are rotated with each other, so that the pulling force of the hook seat 1 is deflected in the direction, and the inclined pulling force is changed into a straight line pulling force.

[0034] Reference Figure 2 The two sides of the inside of the mounting plate 12 are rotatably connected with the ball bearings 18 which are slidingly connected with the rotating disc 15. The friction of the rotating disc 15 rotating in the inside of the mounting plate 12 is reduced, and the rotating stability is improved.

[0035] Reference Figure 1 、 Figure 2 The two sides of the inside of the mounting plate 12 are rotatably connected with the ball bearings 18 which are slidingly connected with the rotating disc 15. The friction of the rotating disc 15 rotating in the inside of the mounting plate 12 is reduced, and the rotating stability is improved.

[0036] Reference Figure 2 The surface of the connecting plate 14 is rotatably sleeved with the sealing ring 20 which is bonded with the mounting plate 12. The sealing property is improved, water is prevented from entering the inside to cause rust, and the rotating is difficult.

[0037] The use process is briefly described as follows: the hook seat 1 can be rotated on one side of the mounting plate 12 by rotating the rotating disc 15 between the hook seat 1 and the mounting plate 12. Meanwhile, the angle of the hook seat 1 can be rotated by rotating the connecting plate 14 and the fixed head 13 with each other. When the rope is hooked and a pulling force is generated, if the direction of the pulling force is from the side, the hook seat 1 can be rotated in a certain direction by rotating the rotating disc 15, and the pulling force in the direction can be deflected by rotating the hook seat 1 with the fixed head 13 and the connecting plate 14, so that the inclined pulling force is changed into a straight line pulling force, and the first hook 2 and the second hook 3 are prevented from being deformed by being pulled obliquely.

[0038] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, the modifications are protected by the patent law.

Claims

1. A trailer hook for automobile towing, comprising a hook seat (1), characterized in that: The two sides of the bottom of the hook seat (1) are respectively rotatably connected with a first hook (2) and a second hook (3); the inside of the hook seat (1) is bolted with a motor (4); the output end of the motor (4) is bolted with a threaded shaft (5) rotatably connected to the hook seat (1); the surface of the threaded shaft (5) is threadedly sleeved with a sliding block (6) slidably connected to the hook seat (1); both sides of the sliding block (6) are bolted with a first linear rack (7); the ends of the tops of the first hook (2) and the second hook (3) away from each other are provided with a second linear rack (8) slidably connected to the hook seat (1); the two sides of the inside of the hook seat (1) are rotatably connected with a disc gear (9) meshing with the first linear rack (7) and the second linear rack (8); the ends of the tops of the first hook (2) and the second hook (3) away from each other are provided with a card slot (10); the bottom of the second linear rack (8) is bolted with a rotating head (11) rotatably connected to the card slot (10).

2. A trailer hook for automobile towing according to claim 1, characterized in that: A mounting plate (12) is provided on the top of the hook seat (1), a rotating disk (15) is rotatably connected inside the mounting plate (12), two fixed heads (13) welded to the hook seat (1) are symmetrically provided between the hook seat (1) and the mounting plate (12), and a connecting plate (14) welded to the bottom of the rotating disk (15) is rotatably connected between the two fixed heads (13).

3. The trailer hook for automobile towing according to claim 1, characterized in that: The inner surfaces of the first hook (2) and the second hook (3) are both provided with anti-slip grooves (16).

4. The trailer hook for automobile towing according to claim 1, characterized in that: A ventilation hole (17) for use with the motor (4) is provided on a side of the hook seat (1) close to the motor (4).

5. The trailer hook for automobile towing according to claim 2, characterized in that: Both sides of the interior of the mounting plate (12) are rotatably connected with balls (18) that are slidably connected to the rotating disk (15).

6. The trailer hook for automobile towing according to claim 2, characterized in that: Both sides of the interior of the mounting plate (12) are threadedly connected with mounting bolts (19).

7. The trailer hook for automobile towing according to claim 2, characterized in that: A sealing ring (20) bonded to the mounting plate (12) is rotatably sleeved on the surface of the connecting plate (14).

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