Tow hook connector and automobile

Abstract

The utility model relates to a coupler of a tow hook. The coupler comprises a coupler main body and the tow hook, one end of the coupler main body is fixed on a vehicle body, and the other end is connected with the trailer hook; wherein the coupler body comprises a fixing piece, a power piece and a connecting piece which are sequentially connected, the fixing piece is fixed to a vehicle body, the end, away from the power piece, of the connecting piece is integrally connected with the tow hook, the connecting piece is driven by the power piece, and the tow hook synchronously rotates along with the connecting piece. And the tow hook is rotated out of the vehicle body or rotated into the vehicle body. The coupler has the advantages that the trailer hook is pushed to move through the specific mechanical structure design of the coupler main body structure, the trailer hook is driven to be screwed out of or screwed into an automobile body along with the coupler main body structure, the interior of the trailer hook is achieved, meanwhile, the attractive performance of the automobile body is kept, and when not used, the coupler can be rotated to the position below the automobile body, and other objects cannot be hooked.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a trailer hook connector and an automobile. Background Art

[0002] In order to facilitate people to carry or check some difficult-to-load objects, more and more people have a demand for trailer hooks for cars. The existing trailer coupler consists of a main body and a trailer hook. The main body is fixed to the rear of the car body, and the power source of the trailer hook and a series of mechanical structures are fixed on the main body to drive the trailer hook. However, the existing mechanical disassembly methods are mostly external trailer hooks, which affect the appearance and are easy to hook other items. In addition, it needs to be pulled manually, which is inconvenient to operate. Utility Model Content

[0003] The utility model aims at the technical problems existing in the prior art and provides a trailer hook connector which can work normally and has a mechanical structure and a vehicle with the connector.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] The first aspect of the utility model protects: a trailer hook connector, including a connector body and a trailer hook;

[0006] One end of the coupling body is fixed to the vehicle body, and the other end is connected to the trailer hook;

[0007] Among them, the connector body includes a fixing part, a power part, and a connecting part which are connected in sequence. The fixing part is fixed to the vehicle body, and the end of the connecting part away from the power part is integrally connected to the trailer hook. The power part drives the connecting part and the trailer hook to rotate synchronously therewith, so that the trailer hook is rotated out of the vehicle body or into the vehicle body.

[0008] As a further technical solution, the power member includes a power shaft, a slide, a limiter, and a rotating member which are sequentially sleeved from the inside to the outside, the power shaft and the slide are connected by a screw pair, and the transmission pin on the slide is inserted into the limit groove in the limiter to drive the rotating member to rotate;

[0009] Wherein, the power shaft is driven to rotate by a motor;

[0010] The rotating member is connected to the connecting member, and the rotating member drives the connecting member to rotate when the rotating member rotates.

[0011] As a further technical solution, the outer surface of the power shaft is provided with a spiral groove along its height direction, and the inner wall of the slide is provided with a spiral boss adapted to the spiral groove, so that when the power shaft rotates, the slide is driven to rotate along its axis direction;

[0012] Wherein, the transmission pin is vertically arranged on the outer wall of the slide and moves along the path of the limiting groove;

[0013] The end of the transmission pin extends out of the limiting groove and is rotatably abutted against the rotating member.

[0014] As a further technical solution, the limiting groove includes a first straight groove, a circular arc groove, and a second straight groove which are connected in sequence, and the first straight groove, the circular arc groove, and the second straight groove form a structure with a Z-shaped cross section;

[0015] Among them, the first straight groove and the second straight groove are both opened along the axial direction of the slide, and the circular arc groove is opened along the circumference of the slide, so that the slide can make linear motion along the first straight groove and the second straight groove and circular motion along the circular arc groove under the drive of the power shaft.

[0016] As a further technical solution, a third linear groove is opened on the inner side wall of the rotating member along its axial direction, and the end of the transmission pin is adapted to be inserted into the third linear groove to drive the rotating member to move circumferentially along the limiter.

[0017] As a further technical solution, the power member further comprises an annular end cover, the end cover is threadedly connected to the outer surface of the limiter, and the lower end surface thereof abuts against the upper end surface of the rotating member.

[0018] As a further technical solution, the longitudinal section of the rotating part is constructed as an isosceles trapezoid, the upper base length of the isosceles trapezoid is smaller than the lower base length, and the upper base abuts against the end cover, and the lower base has a gap with the outer wall of the power shaft to connect with the vehicle body.

[0019] As a further technical solution, a through hole is provided on the fixing member, so that the rotating shaft of the motor passes through the through hole and extends into the power shaft to drive the power shaft to rotate.

[0020] The second aspect of the utility model protects: a car, comprising the trailer hook connector described in the first aspect.

[0021] As a further technical solution, the connector body is installed on a trailer bar of the car.

[0022] The beneficial effects of the utility model are as follows: the specific mechanical structure design of the coupling main body structure is used to promote the movement of the trailer hook, and drive the trailer hook to rotate out or rotate into the automobile body, so that the trailer hook is built-in while maintaining the aesthetic performance of the automobile body. When it is not needed, it can be rotated so that it is under the automobile body and will not be hooked on other objects.

[0023] In addition, it is driven by a motor and does not require manual operation, which is convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional structural schematic diagram of a trailer hook connector of the utility model;

[0025] Figure 2 This is a schematic diagram of the exploded structure of a trailer hook connector of the utility model, in which the motor is not drawn;

[0026] Figure 3 It is a partial structural schematic diagram of a trailer hook connector;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the power shaft;

[0028] Figure 5 Schematic diagram of the three-dimensional structure of the slide;

[0029] Figure 6 is a schematic diagram of the three-dimensional structure of the limiter;

[0030] Figure 7 It is a schematic diagram of the structure of the limiter, and its surface is provided with external threads;

[0031] Figure 8 It is a schematic diagram of the end cover structure, and its inner wall is provided with internal threads.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] Trailer hook 1;

[0034] Fixing member 2, via hole 21;

[0035] Power member 3, power shaft 31, spiral groove 311, slide 32, transmission pin 321, stopper 33, limit groove 331, first linear groove 331a, arc groove 331b, second linear groove 331c, rotating member 34, third linear groove 341, end cover 35;

[0036] Connecting piece 4, motor 5. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0038] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0039] In the description of the present application, the term "for example" is used to mean "used as an example, illustration or description". Any embodiment described as "for example" in the present application is not necessarily to be construed as being more preferred or advantageous than other embodiments. In order to enable any technician in the field to implement and use the utility model, the following description is given. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the utility model can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details that make the description of the utility model obscure. Therefore, the utility model is not intended to be limited to the embodiments shown, but is consistent with the widest range of principles and features disclosed in the present application.

[0040] Example 1

[0041] In order to solve the energy loss caused by the brake system controlling the trailer hook 1, this embodiment provides a technical solution that uses a mechanical structure to control the trailer hook 1 to rotate out or rotate into the vehicle body, specifically a trailer hook connector, including a connector body and a trailer hook 1; see Figure 1 , Figure 2 , one end of the connector body is fixed to the vehicle body, and the other end is connected to the trailer hook 1; wherein, the connector body includes a fixing member 2, a power member 3, and a connecting member 4 connected in sequence, the fixing member 2 is fixed to the vehicle body, and the connecting member 4 is integrally connected to the trailer hook 1 at one end away from the power member 3, and the connecting member 4 and the trailer hook 1 are driven by the power member 3 to rotate synchronously, so that the trailer hook 1 is rotated out of the vehicle body or into the vehicle body. In this embodiment, the fixing member 2 bears the gravity of the entire structure, and at the same time fixes the entire structure to the vehicle body; and the power member 3 is the power source for driving the trailer hook 1 to move. When the trailer hook 1 needs to be used, the power member 3 rotates and then drives the trailer hook 1 to rotate synchronously, so as to be rotated out of the vehicle body for use. After use, the trailer hook 1 can be driven to rotate synchronously under the rotation of the power member 3 to be rotated into the vehicle body.

[0042] In the specific implementation process, see Figure 1 , Figure 2 , Figure 4 , Figure 5The power member 3 includes a power shaft 31, a slide 32, a limiter 33, and a rotating member 34 which are sequentially sleeved from the inside to the outside, that is, the slide 32, the limiter 33, and the rotating member 34 are all hollow structures and are coaxially arranged; the power shaft 31 and the slide 32 are connected by a spiral pair, and optionally, the outer surface of the power shaft 31 is provided with a spiral groove 311 along its height direction, and correspondingly, the inner wall of the slide 32 is provided with a spiral boss adapted to the spiral groove 311, so that when the power shaft 31 rotates, the slide 32 is driven to rotate along its axial direction, that is, when the power shaft 31 rotates, The slide 32 adapted thereto moves along the axial direction of the power shaft 31 and rotates along its circumferential direction at the same time. The height of the slide 32 is less than the height of the power shaft 31, and preferably the height of the slide 32 is less than half the height of the power shaft 31. During this process, the transmission pin 321 on the slide 32 is in the limit groove 331 of the limiter 33 to drive the rotating member 34 to rotate. The rotating member 34 is connected to the connecting member 4, and the rotation of the rotating member 34 drives the connecting member 4 to rotate, thereby driving the trailer hook 1 to rotate out of or into the vehicle body, and the power shaft 31 is driven to rotate by the motor 5;

[0043] In more detail, the transmission pin 321 is vertically arranged on the outer wall of the slide 32 and moves along the path of the limit slot 331, that is, when the slide 32 moves along the axial direction of the power shaft 31, the transmission pin 321 thereon moves along the path of the limit slot 331, and the length of the limit slot 331 on the axis of the limiter 33 is the distance that the slide 32 moves in the axial direction of the power shaft 31; in this process, the end of the transmission pin 321 extends The limiting groove 331 is in rotational contact with the rotating member 34, that is, the movement of the transmission pin 321 drives the rotating member 34 to rotate along its circumferential direction. Since the rotating member 34 is sleeved outside the limiter 33, in order to prevent the rotating member 34 from moving along the axial direction of the limiter 33 during this process, the power member 3 also includes a circular end cover 35, and the end cover 35 is threadedly connected to the outer surface of the limiter 33, and its lower end face abuts against the upper end face of the rotating member 34 (refer to Figure 7 , Figure 8 ), so that the end cover 35 and the limiter 33 are thread-locked.

[0044] To facilitate installation, the longitudinal section of the rotating member 34 is constructed as an isosceles trapezoid, the upper base length of the isosceles trapezoid is smaller than the lower base length, the upper base abuts against the end cover 35, and the lower base has a gap with the outer wall of the power shaft 31 to connect with the vehicle body, that is, when installed on the vehicle body, an installation gap is reserved; optionally, the rotating member 34 is a ball neck arm.

[0045] In the specific implementation process, to control the rotation angle, see Figure 2 , Figure 6 , Figure 7 The limiting groove 331 includes a first straight groove 331a, a circular groove 331b, and a second straight groove 331c that are connected in sequence, and the first straight groove 331a, the circular groove 331b, and the second straight groove 331c form a structure with a Z-shaped cross section, that is, when the connector is in a non-working state, the transmission pin 321 is located in the first straight groove 331a, and when the working state is turned on, the transmission pin 321 moves in multiple directions along the first straight groove 331a close to the circular groove 331b. When it moves to the circular groove 331b, the transmission pin 321 pushes the rotating member 34 to rotate along its circumferential direction, and then synchronously drives the trailer hook 1 to rotate until the transmission pin 321 moves to the end of the second straight groove 331c and stops working. If the rotation direction is to rotate out of the vehicle body at this time , when the reverse rotation occurs, that is, when the transmission pin 321 moves in the second linear groove 331c toward the arc groove 331b, the trailer hook 1 is not started at this time, and when the transmission pin 321 moves into the arc groove 331b again, the transmission pin 321 pushes the rotating member 34 to rotate in the reverse direction to drive the trailer hook 1 to rotate into the vehicle body, until the transmission pin 321 moves back to the first linear groove 331a, then the rotating member 34 and the trailer hook 1 stop moving at the same time. This process is to explain the movement path of the connector, and the first linear groove 331a is set as the starting point of the transmission pin 321 in the non-working state. Of course, in actual operation, the second linear groove 331c can also be used as the starting point of the transmission pin 321 in the non-working state. The movement process is opposite to that above, but the movement principle is the same;

[0046] To further illustrate the movement path of the transmission pin 321, the first straight groove 331a and the second straight groove 331c are both opened along the axial direction of the slide 32, and the circular arc groove 331b is opened along the circumference of the slide 32, so that the slide 32, driven by the power shaft 31, makes linear motion along the first straight groove 331a and the second straight groove 331c, and makes circular motion along the circular arc groove 331b, that is, when the slide 32 moves, it always moves along the axial direction of the power shaft 31.

[0047] In the specific implementation process, see Figure 3In order to make the rotating member 34 only move along its circumferential direction, a third linear groove 341 is opened on the inner side wall of the rotating member 34 along its axial direction, and the end of the transmission pin 321 is adapted to be inserted into the third linear groove 341 to drive the rotating member 34 to move along the circumferential direction of the limiter 33, that is, when the transmission pin 321 moves along the first linear groove 331a and the second linear groove 331c, the transmission pin 321 moves up and down along the third linear groove 341, and will not push the rotating member 34 to move circumferentially at this time. When the transmission pin 321 moves along the arc groove 331b, the transmission pin 321 pushes the rotating member 34 to move along its circumferential direction, and then drives the trailer hook 1 to rotate out or rotate into the vehicle body.

[0048] In the specific implementation process, see Figure 1 , Figure 2 The fixing member 2 is provided with a through hole 21, so that the rotating shaft of the motor 5 passes through the through hole 21 and extends into the power shaft 31 to drive the power shaft 31 to rotate. Optionally, the motor 5 is a worm gear reducer.

[0049] Example 2

[0050] A car is protected, the car comprises the trailer hook connector as described in Example 1, more specifically, the connector body is installed on the trailer bar of the car; and the fixing member 2 can be fixed on the trailer bar at the same time.

[0051] The utility model is achieved in this way:

[0052] 1. When in a non-working state, the transmission pin 321 is located in the first linear groove 331a and abuts against the third linear groove 341, and the trailer hook 1 is located in the vehicle body;

[0053] 2. Start working, the motor 5 drives the power shaft 31 to rotate, at this time, the slide 32 connected to the spiral pair of the power shaft 31 moves along the axial direction of the power shaft 31, and the transmission pin 321 moves in multiple directions along the first linear groove 331a close to the circular arc groove 331b, and due to the design of the end cover 35, the rotating member 34 will not move along the axial direction of the limiter 33 at this time. When moving to the circular arc groove 331b, the transmission pin 321 pushes the rotating member 34 to rotate along its circumference, and then synchronously drives the trailer hook 1 to rotate, until the transmission pin 321 moves to the end of the second linear groove 331c and stops working, and the trailer hook 1 rotates out of the vehicle body;

[0054] 3. Stop working, start the motor 5 to drive the power shaft 31 to rotate in the opposite direction, and the slide 32 connected to the spiral pair of the power shaft 31 moves in the opposite direction of the axis of the power shaft 31 (the reverse direction mentioned here is relative to the direction in step 2), and the transmission pin 321 moves in multiple directions along the second straight groove 331c close to the arc groove 331b. When moving to the arc groove 331b, the transmission pin 321 pushes the rotating part 34 to rotate along its circumference (this is opposite to the direction in step 2), and then synchronously drives the trailer hook 1 to rotate until the transmission pin 321 moves to the end of the first straight groove 331a and stops working, and the trailer hook 1 is rotated into the vehicle body.

[0055] The utility model has a simple structure and is easy to operate, and adopts a mechanical structure to drive the trailer hook 1 to move, thereby avoiding energy loss caused by controlling the movement of the trailer head through a brake system.

[0056] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0057] Although the preferred embodiments of the utility model have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the utility model.

[0058] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A trailer hook connector, characterized in that: It comprises a coupling body and a trailer hook (1); One end of the coupling body is fixed to the vehicle body, and the other end is connected to the trailer hook (1); The coupling body comprises a fixing part (2), a power part (3), and a connecting part (4) which are connected in sequence. The fixing part (2) is fixed to the vehicle body. The end of the connecting part (4) away from the power part (3) is integrally connected to the trailer hook (1). The power part (3) drives the connecting part (4) and the trailer hook (1) to rotate synchronously therewith, so that the trailer hook (1) is rotated out of the vehicle body or into the vehicle body.

2. A trailer hook connector according to claim 1, characterized in that: The power member (3) comprises a power shaft (31), a slide (32), a stopper (33), and a rotating member (34) which are sequentially sleeved from the inside to the outside, the power shaft (31) and the slide (32) are connected by a screw pair, and a driving pin (321) on the slide (32) is inserted into a stopper groove (331) of the stopper (33) to drive the rotating member (34) to rotate; Wherein, the power shaft (31) is driven to rotate by a motor (5); The rotating member (34) is connected to the connecting member (4), and the rotating member (34) drives the connecting member (4) to rotate.

3. A trailer hook connector according to claim 2, characterized in that: The outer surface of the power shaft (31) is provided with a spiral groove (311) along its height direction, and the inner wall of the slide table (32) is provided with a spiral boss matched with the spiral groove (311), so that when the power shaft (31) rotates, the slide table (32) is driven to rotate along its axis direction; Wherein, the transmission pin (321) is vertically arranged on the outer wall of the slide (32) and moves along the path of the limiting groove (331); The end of the transmission pin (321) extends out of the limiting groove (331) and is rotatably abutted against the rotating member (34).

4. A trailer hook connector according to claim 3, characterized in that: The limiting groove (331) comprises a first straight groove (331a), a circular arc groove (331b), and a second straight groove (331c) which are connected in sequence, and the first straight groove (331a), the circular arc groove (331b), and the second straight groove (331c) form a structure with a Z-shaped cross section; The first straight groove (331a) and the second straight groove (331c) are both opened along the axial direction of the slide (32), and the circular arc groove (331b) is opened along the circumferential direction of the slide (32), so that the slide (32) performs linear motion along the first straight groove (331a) and the second straight groove (331c) and performs circular motion along the circular arc groove (331b) under the drive of the power shaft (31).

5. The trailer hook connector according to claim 3, characterized in that: A third linear groove (341) is provided on the inner side wall of the rotating member (34) along its axial direction, and the end of the transmission pin (321) is adapted to be inserted into the third linear groove (341) to drive the rotating member (34) to move circumferentially along the limiter (33).

6. A trailer hook connector according to claim 2, characterized in that: The power member (3) further comprises an annular end cover (35), wherein the end cover (35) is threadedly connected to the outer surface of the stopper (33), and the lower end surface thereof abuts against the upper end surface of the rotating member (34).

7. A trailer hook connector according to claim 6, characterized in that: The longitudinal section of the rotating member (34) is constructed as an isosceles trapezoid, the upper base of which is shorter than the lower base, and the upper base abuts against the end cover (35), while the lower base has a gap with the outer wall of the power shaft (31) to connect with the vehicle body.

8. The trailer hook connector according to claim 2, characterized in that: The fixing member (2) is provided with a through hole (21), so that the rotating shaft of the motor (5) passes through the through hole (21) and extends into the power shaft (31), thereby driving the power shaft (31) to rotate.

9. A car, characterized in that: It comprises a trailer hook connector as claimed in any one of claims 1 to 8.

10. The automobile according to claim 9, characterized in that: The coupling body is mounted on a trailer bar of a vehicle.

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