A rotatable reinforced trailer hitch

Abstract

The utility model provides a kind of rotatable reinforced trailer hook, including body, the body includes the installation section for inserting car interface, and the connecting section with the included angle between the installation section;The end of the connecting section is equipped with the rotating block rotatable relative to body, and the trailer assembly is slidably connected on the connecting section;Rotating block is arranged at the end of connecting section, so that trailer assembly can be moved to rotating block to fold and store, avoid trailer ball head to protrude from the tail in non-towing state, reduce the risk of scratching, improve the safety of whole vehicle.

Description

Technical Field

[0001] This utility model relates to the field of trailer tools technology, and in particular to a rotatable and reinforced trailer hook. Background Technology

[0002] A trailer hitch is a connecting component installed at the rear of a vehicle to connect trailers, luggage racks, bicycle racks, and other attachments. It is widely used in scenarios such as self-driving travel, cargo transportation, and emergency rescue. Generally, a trailer hitch includes an mounting section for connecting to the vehicle body and a load-bearing section for connecting to a trailer hitch or trailer hitch assembly. It connects to the trailer interface at the rear of the vehicle through plugging, locking, or other methods, achieving the purpose of transferring tension or stabilizing attachments between towing vehicles.

[0003] However, existing tow hooks still have certain shortcomings in practical applications. First, after installation, the tow hook usually extends a certain distance beyond the rear of the vehicle, increasing the overall length. Especially when the vehicle is parked or moving at low speeds, it is easily scratched by pedestrians or vehicles behind, posing a certain safety hazard. Second, due to installation gaps between some tow hooks and the vehicle's interface, or due to aging and loosening of the interface after long-term use, abnormal noises often occur during daily driving, affecting the driving experience, and there is even a risk of detachment. Utility Model Content

[0004] This invention proposes a rotatable and reinforced trailer hook to solve the problems mentioned in the background art, such as the potential collision risk caused by the outward extension of the existing trailer hook structure and the abnormal noise caused by the loose fit of the installation interface.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A rotatable reinforced trailer hitch includes a body, the body including a mounting section for insertion into a vehicle interface, and a connecting section forming an angle with the mounting section;

[0007] The end of the connecting section is equipped with a rotating block that can rotate relative to the main body. A trailer assembly is slidably connected to the connecting section. The trailer assembly can be moved onto the rotating block and can rotate with the rotating block when idle to achieve folding and storage.

[0008] Preferably, the trailer assembly includes a movable seat and a trailer ball joint mounted on the movable seat. One end of the movable seat has a groove with the same cross-sectional profile as the connecting section. The two side walls of the groove have through holes. The middle of the first through hole is connected to the groove. The outer and inner walls of the connecting section are provided with limiting grooves. The length direction of the limiting groove is perpendicular to the length direction of the connecting section. There are multiple limiting grooves on the outer wall of the connecting section, which are evenly arranged along the length direction of the connecting section. When the movable seat moves to a position where the first through hole matches one of the limiting grooves, a pin can be inserted into the first through hole and the limiting groove to fix the movable seat and the connecting section. When the trailer assembly rotates to the inner side of the connecting section, the limiting groove on the inner wall of the connecting section can cooperate with the first through hole, and the pin lock can be used to position the trailer assembly.

[0009] Preferably, the trailer ball joint is disposed through the mounting hole at the end of the movable seat, and the movable seat has a third through hole that connects the mounting hole and the slide groove. A limiting pin is disposed through the third through hole and is disposed through the trailer ball joint.

[0010] Preferably, the angle between the connecting section and the mounting section is 90°, and the body formed by the combination of the connecting section and the mounting section is an L-shaped structure.

[0011] Preferably, the rotating block is connected to the connecting section by a rotating bolt passing through the center, so that the rotating block can rotate around the axis of the rotating bolt, and a limiting boss protruding outward is provided at the end of the rotating block.

[0012] Preferably, a spring plunger is installed on the end face of the rotating block near the connecting section, and multiple slots are evenly distributed on the end face of the connecting section around the axis of the rotating bolt, so that the steel ball at the end of the spring plunger can be placed in the slot.

[0013] Preferably, the cross-sectional profile of the rotating block is consistent with that of the connecting segment; the cross-sectional profile of the rotating block is square, circular or rhomboid.

[0014] Preferably, the outer wall of the mounting section of the body is provided with a groove, the spring washer is fixed in the groove by bolts, and when the spring washer is not in operation, a part of its area can extend to the outside of the groove.

[0015] Preferably, a spring washer is installed on the outer wall of the mounting section, the spring washer being configured to fit tightly against the inner wall of the vehicle interface to prevent the body from shaking within the vehicle interface; the number of spring washers is one or more.

[0016] Preferably, the trailer ball joint has ball heads at both ends, and the diameters of the ball heads at both ends may be the same or different.

[0017] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0018] This invention effectively enhances the tightness of the fit between the trailer and the vehicle interface by setting spring washers on the outer wall of the mounting section, preventing shaking and abnormal noise caused by gaps, and improving connection stability. Furthermore, a rotatable rotating block is set at the end of the connecting section, allowing the trailer assembly to be moved onto the rotating block for folding and storage, preventing the trailer ball joint from protruding from the rear of the vehicle when not in a towing state, reducing the risk of scratches, and improving the overall vehicle safety. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0020] Figure 1 This is a perspective view of the present utility model;

[0021] Figure 2 This is an exploded view of the present invention;

[0022] Figure 3 This is a cross-sectional view of the present invention;

[0023] Figure 4 The three-dimensional form of the main body of this utility model Figure 1 ;

[0024] Figure 5 The three-dimensional form of the main body of this utility model Figure 2 ;

[0025] Figure 6 This is a perspective view of the movable base of this utility model;

[0026] Figure 7 This is a perspective view of the rotating block of this utility model;

[0027] Figure 8 This is a schematic diagram showing the movable seat of this utility model moving to the position of the rotating block;

[0028] Figure 9 This is a schematic diagram of the movable seat of this utility model after rotating 180° with the rotating block;

[0029] Figure 10 This is a schematic diagram of the trailer hook of this utility model in a folded and stored state.

[0030] in:

[0031] 1. Body; 101. Mounting section; 1011. Groove; 102. Connecting section; 1021. Limiting groove; 1022. Slot; 2. Spring washer; 3. Movable seat; 301. Slide groove; 302. First through hole; 303. Third through hole; 304. Mounting hole; 305. Blind hole; 4. Bolt lock; 5. Trailer ball joint; 6. Limiting pin; 7. Spring plunger; 8. Rotating block; 801. Limiting boss; 9. Rotating bolt. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] like Figure 1-10 As shown, a rotatable and reinforced trailer hitch includes a body 1. The body 1 includes a mounting section 101 for inserting into a car interface and a connecting section 102 forming an angle with the mounting section 101. In this example, the angle between the connecting section 102 and the mounting section 101 is 90°, and the body 1 formed by the combination of the connecting section 102 and the mounting section 101 is an L-shaped structure. The connecting section 102 is mainly set so that the height position of the trailer ball joint 5 can be adjusted to achieve the effect of height adjustment.

[0034] A spring washer 2 is installed on the outer wall of the mounting section 101. The spring washer 2 is configured to fit tightly against the inner wall of the car interface to prevent the body 1 from shaking inside the car interface. Specifically, the outer wall of the mounting section 101 of the body 1 has a groove 1011. The spring washer 2 is fixed in the groove 1011 by bolts. In the non-working state, a portion of the spring washer 2 can extend to the outside of the groove 1011. In this example, the portion refers to the middle area of ​​the spring washer 2. In use, after the mounting end is inserted into the car interface, the middle area of ​​the spring washer 2 protrudes outward and abuts against the inner wall of the car interface, thereby applying a reaction force to the mounting section 101 to prevent the mounting section 101 from shaking inside the car interface. This helps to support and reinforce the body 1 and improve the connection strength with the car interface. In this example, there is one spring washer 2. It can be understood that in other embodiments, multiple spring washer 2 can be provided and respectively provided on different surfaces of the mounting section 101.

[0035] The end of the connecting segment 102 is equipped with a rotating block 8 that can rotate relative to the main body 1. A trailer assembly is slidably connected to the connecting segment 102. The trailer assembly can be moved onto the rotating block 8 and can rotate together with the rotating block 8 when idle, so as to achieve folding and storage.

[0036] Specifically, the trailer assembly includes a movable seat 3 and a trailer ball joint 5 mounted on the movable seat 3. One end of the movable seat 3 is provided with a groove 301 that has the same cross-sectional profile as the connecting section 102. The two side walls of the groove 301 are provided with through holes 302. The middle part of the first through hole 302 is connected to the groove 301. The outer and inner walls of the connecting section 102 are provided with limiting grooves 1021. The limiting groove 1021 has an arc-shaped cross-section. Since the middle part of the first through hole 302 is connected to the groove 301, the limiting groove 1021 and the middle area of ​​the first through hole 302 can form a circular hole structure when matched. This circular hole structure facilitates the insertion of the bolt lock 4.

[0037] The length direction of the limiting groove 1021 is perpendicular to the length direction of the connecting section 102. There are multiple limiting grooves 1021 on the outer wall of the connecting section 102, which are evenly arranged along the length direction of the connecting section 102. When the movable seat 3 moves to the position where the first through hole 302 matches one of the limiting grooves 1021, a pin lock 4 can be inserted into the first through hole 302 and the limiting groove 1021 to fix the movable seat 3 and the connecting section 102. When the trailer assembly rotates to the inner side of the connecting section 102, the limiting groove 1021 on the inner wall of the connecting section 102 can cooperate with the first through hole 302, and the pin lock 4 is used to position the trailer assembly. The movable seat 3 is provided with a sliding groove 301 and a through hole structure that cooperate with the connecting section 102, which can realize the sliding positioning of the trailer assembly on the connecting section 102 and quickly fix it by the pin lock 4, improving the connection reliability and installation convenience. While satisfying the position adjustment of the movable seat 3, it is also convenient for disassembly and maintenance.

[0038] Specifically, the trailer ball joint 5 is disposed through the mounting hole 304 at the end of the movable seat 3, and the movable seat 3 is provided with a third through hole 303, which connects the mounting hole 304 and the slide groove 301. A limiting pin 6 passes through the third through hole 303 and is disposed through the trailer ball joint 5. More specifically, a blind hole 305 is provided on the side wall of the movable seat 3 near the mounting hole 304. The blind hole 305 is coaxially disposed with the third through hole 303. When the limiting pin 6 is inserted into the third through hole 303 and passes through the trailer ball joint 5, it can be placed in the blind hole 305. At the same time, since the third through hole 303 is connected to the slide groove 301, and the movable seat 3 is slidably connected to the connecting section 102, the connecting section 102 can be used to axially limit the limiting pin 6, thereby preventing the limiting pin 6 from disengaging from the third through hole 303, and achieving the effect of firmly connecting the trailer ball joint 5.

[0039] Specifically, the rotating block 8 is connected to the connecting section 102 through a rotating bolt 9 passing through the center, so that the rotating block 8 can rotate around the axis of the rotating bolt 9. A limiting boss 801 protruding outward is provided at the end of the rotating block 8. The rotating bolt 9 is only used to connect the rotating block 8 and the connecting section 102. The two can rotate relative to each other, so that after the movable seat 3 moves onto the rotating block 8, it can drive the movable seat 3 to rotate.

[0040] Specifically, a spring plunger 7 is installed on the end face of the rotating block 8 near the connecting section 102. Multiple slots 1022 are evenly distributed around the axis of the rotating bolt 9 on the end face of the connecting section 102. The steel ball at the end of the spring plunger 7 can be placed within the slot 1022. The structure of the spring plunger 7 and the slots 1022 can limit the rotation of the rotating block 8 to a certain extent, preventing it from easily rotating without external force. In this example, there are four spring plungers 7 and four slots 1022, all evenly distributed around the axis of the rotating bolt 9, so that the rotating block 8 can be positioned every 90° of rotation. It is understood that in other embodiments, two spring plungers 7 and two slots 1022 can be set respectively to achieve fixation after the rotating block 8 rotates 180°. It is also understood that the rotating block 8 can be designed as a stepless rotation mode.

[0041] Specifically, the rotating block 8 has a cross-sectional profile that matches the connecting section 102, so that the movable seat 3 can not only move along the connecting section 102, but also move onto the rotating block 8; the cross-sectional profile of the rotating block 8 is square, circular or rhomboid, and in this example the cross-sectional profile of the rotating block 8 is square.

[0042] Specifically, the trailer ball joint 5 has ball heads at both ends, and the diameters of the ball heads at both ends may be the same or different. In this example, the diameters of the ball heads at both ends are different, which is configured to connect different types of trailers, thereby expanding the scope of application.

[0043] When using this type of trailer hitch, the mounting section 101 of the main body 1 is inserted into the car interface and secured with a locking pin. At this time, the spring washer 2 can abut against the inner wall of the car interface to prevent the trailer hitch from shaking. The movable seat 3, which is equipped with the trailer ball joint 5, can move along the length of the connecting section 102. After adjusting to the designated position, the movable seat 3 is fixed in position using the pin lock 4, and the trailer ball joint 5 can then be used to connect to trailers, luggage racks, etc. When not in use, first remove the pin lock 4, and move the movable seat 3 to the position of the rotating block 8 at the end of the connecting section 102 (e.g., Figure 8 (As shown), then rotate the movable seat 3 and the rotating block 8 to rotate them 180° (as shown). Figure 9 As shown), the movable seat 3 and the trailer ball joint 5 can be rotated to the inner side of the main body 1, and then the movable seat 3 can be moved along the length of the connecting section 102. Finally, the movable seat 3 is fixed to the connecting section 102 using the pin lock 4 (as shown). Figure 10 As shown in the figure, this completes the folding and storage effect of the trailer hook.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotatable and reinforced trailer hitch, characterized in that, Includes a body (1), which includes a mounting section (101) for insertion into a car interface and a connecting section (102) forming an angle with the mounting section (101). The end of the connecting segment (102) is equipped with a rotating block (8) that can rotate relative to the main body (1). A trailer assembly is slidably connected to the connecting segment (102). The trailer assembly can be moved onto the rotating block (8) and can rotate together with the rotating block (8) when idle, so as to achieve folding and storage.

2. The rotatable reinforced trailer hitch according to claim 1, characterized in that, The trailer assembly includes a movable seat (3) and a trailer ball joint (5) mounted on the movable seat (3). One end of the movable seat (3) is provided with a groove (301) with the same cross-sectional profile as the connecting section (102). The two side walls of the groove (301) are provided with a through hole (302).

3. The rotatable reinforced trailer hitch according to claim 2, characterized in that, The middle part of the first through hole (302) is connected to the sliding groove (301). The outer and inner walls of the connecting section (102) are provided with limiting grooves (1021). The length direction of the limiting grooves (1021) is perpendicular to the length direction of the connecting section (102). There are multiple limiting grooves (1021) on the outer wall of the connecting section (102) and they are evenly arranged along the length direction of the connecting section (102). When the movable seat (3) moves to the first through hole (302) When the position matches one of the limiting grooves (1021), a pin lock (4) can be inserted into the first through hole (302) and the limiting groove (1021) to fix the movable seat (3) and the connecting section (102). When the trailer assembly rotates to the inner direction of the connecting section (102), the limiting groove (1021) located on the inner wall of the connecting section (102) can cooperate with the first through hole (302) and the pin lock (4) can be used to position the trailer assembly.

4. The rotatable reinforced trailer hitch according to claim 2, characterized in that, The trailer ball joint (5) is installed through the mounting hole (304) at the end of the movable seat (3), and a third through hole (303) is provided in the movable seat (3). The third through hole (303) connects the mounting hole (304) and the slide groove (301). A limiting pin (6) is installed in the third through hole (303). The limiting pin (6) is installed through the trailer ball joint (5).

5. A rotatable reinforced trailer hitch according to claim 1, characterized in that, The angle between the connecting section (102) and the mounting section (101) is 90°, and the body (1) formed by the combination of the connecting section (102) and the mounting section (101) is an L-shaped structure.

6. The rotatable reinforced trailer hitch according to claim 1, characterized in that, The rotating block (8) is connected to the connecting section (102) through a rotating bolt (9) through the center, so that the rotating block (8) can rotate around the axis of the rotating bolt (9). A limiting boss (801) protruding outward is provided at the end of the rotating block (8).

7. A rotatable reinforced trailer hitch according to claim 6, characterized in that, A spring plunger (7) is installed on the end face of the rotating block (8) near the connecting section (102). Multiple slots (1022) are evenly distributed on the end face of the connecting section (102) around the axis of the rotating bolt (9). The steel ball at the end of the spring plunger (7) can be placed in the slot (1022).

8. A rotatable reinforced trailer hitch according to claim 1, characterized in that, The cross-sectional profile of the rotating block (8) is consistent with that of the connecting section (102); the cross-sectional profile of the rotating block (8) is square, circular or rhomboid.

9. A rotatable reinforced trailer hitch according to claim 1, characterized in that, A spring washer (2) is installed on the outer wall of the mounting section (101). The spring washer (2) is configured to fit tightly against the inner wall of the car interface to prevent the body (1) from shaking inside the car interface. The number of spring washers (2) is one or more.

10. A rotatable reinforced trailer hitch according to claim 9, characterized in that, The mounting section (101) of the main body (1) has a groove (1011) on its outer wall. The spring washer (2) is fixed in the groove (1011) by bolts. When the spring washer (2) is not in operation, a part of its area can extend to the outside of the groove (1011).

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