Rear traction device assembly of vehicle

Abstract

A rear traction device assembly of a vehicle comprises a hook body, a beam body and a connecting assembly, the connecting assembly comprises a first connecting mechanism and a second connecting mechanism, the hook body comprises a towing hook and a driving mechanism, and the driving mechanism is connected with the towing hook and used for driving the towing hook to rotate relative to the beam body. The driving mechanism is installed on the beam body through the first connecting mechanism, the second connecting mechanism is used for enabling the beam body to be detachably connected with a longitudinal beam of a vehicle body, the structure is simple, disassembly, assembly and follow-up maintenance and overhaul are convenient, good structural stability and strength are achieved, and the traction efficiency of the vehicle is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of traction devices, in particular to a rear traction device assembly of a vehicle. Background Art

[0002] The towing device, commonly known as the trailer hook, refers to a component fixed or installed on the car that can tow or be towed. It can tow vehicles that have lost their driving function, or drag vehicles in harsh conditions such as mud and ditches. It plays a vital role in car rescue.

[0003] Existing trailer hooks are mainly divided into fixed and electric folding types. Fixed trailer hooks are mainly fixed to the anti-collision beam at the rear of the vehicle body by welding or after-sales modification, which has poor aesthetics. After-sales modification makes significant structural changes to the vehicle and is inconvenient to install. The electric folding trailer hook can change the position of the trailer hook relative to the vehicle body under power drive, which reduces the abruptness of the vehicle appearance compared to the fixed trailer hook and has good application prospects.

[0004] The existing electric folding trailer hook and vehicle body anti-collision beam have complicated installation operations and are difficult to install. In addition, the overall strength is insufficient and it is easy to loosen or shake during the towing process, thereby affecting the towing efficiency. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a rear traction device assembly for a vehicle, which has good structural stability, good strength, simple installation and operation, and is easy to assemble and disassemble.

[0006] The utility model provides a rear traction device assembly of a vehicle, comprising a hook body, a beam body and a connecting assembly, wherein the connecting assembly comprises a first connecting mechanism and a second connecting mechanism, wherein the hook body comprises a towing hook and a driving mechanism, wherein the driving mechanism is connected to the towing hook and is used to drive the towing hook to rotate relative to the beam body, wherein the driving mechanism is installed on the beam body through the first connecting mechanism, and the second connecting mechanism is used to detachably connect the beam body to the longitudinal beam of the vehicle body.

[0007] In one embodiment, the first connection mechanism includes a base and two fixing members, the driving mechanism is mounted on the base, the fixing members are located on both sides of the base along the Y direction, and the fixing members are used to connect the base and the beam body.

[0008] In one embodiment, a fixing groove is provided at one end of the fixing member close to the beam body, and the fixing groove penetrates the fixing member along the Y direction so that the fixing member has two clamping arms that cooperate with the beam body in the Z direction, and the beam body is at least partially accommodated in the fixing groove, and the two clamping arms are overlapped at both ends of the beam body.

[0009] In one embodiment, a fixing hole is formed on the fixing member, and an opening is formed on the base, and the fixing hole is matched and connected with the opening.

[0010] In one embodiment, the second connection mechanism includes a first bracket and a second bracket, the first bracket is connected to the second bracket, the first bracket is connected to the beam body, and the second bracket is connected to the vehicle body longitudinal beam.

[0011] In one embodiment, the first bracket includes a first side plate, a second side plate and a connecting plate, the first side plate and the second side plate are spaced apart along the Y direction, and the ends of the first side plate and the second side plate away from the beam body are connected by the connecting plate, and the connecting plate is connected to the second bracket.

[0012] In one embodiment, a positioning groove is formed at one end of the first side plate and the second side plate close to the beam body, and the positioning groove penetrates the first side plate and the second side plate along the Y direction. When the first bracket is connected to the beam body, the beam body is at least partially installed in the positioning groove.

[0013] In one embodiment, the second bracket includes a mounting plate and a connecting arm, wherein the mounting plate is connected to the connecting plate, and one end of the connecting arm is connected to the mounting plate, and the other end is connected to the longitudinal beam of the vehicle body.

[0014] In one embodiment, the connecting arm cooperates with a connecting groove on the vehicle body longitudinal beam, and one end of the connecting arm away from the mounting plate is installed in the connecting groove and connected to a groove wall of the connecting groove.

[0015] In one embodiment, the hook body further includes an external connecting piece, which is mounted on the beam body and is used to connect the traction rope.

[0016] The beneficial effects of the utility model are:

[0017] The setting of the first connecting mechanism can install the hook body on the beam body, and the setting of the second connecting mechanism can install the beam body on the longitudinal beam of the vehicle body. The hook body and the beam body can be installed on the vehicle body or removed from the vehicle body through the second connecting mechanism. The structure is simple and convenient for disassembly and maintenance. The first connecting mechanism and the second connecting mechanism can increase the connection stability, ensure the overall structural strength, and then ensure the traction efficiency of the vehicle, which is conducive to improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0020] Figure 2 It is an exploded schematic diagram of the overall structure of an embodiment of the utility model;

[0021] Figure 3 It is an exploded schematic diagram of the overall structure of an embodiment of the utility model from another angle;

[0022] Figure 4 This is a structural schematic diagram of a second connecting mechanism according to an embodiment of the utility model;

[0023] Figure 5 It is a schematic structural diagram of a second bracket according to an embodiment of the utility model.

[0024] In the figure:

[0025] 10-hook body; 11-tow hook; 111-connecting ring; 12-driving mechanism; 121-output shaft; 13-external connecting piece; 131-traction hole;

[0026] 20- beam body; 21- buffer cavity;

[0027] 30-first connecting mechanism; 31-base; 32-fixing member; 321-fixing groove; 322-clamping arm; 323-fixing hole;

[0028] 40-second connecting mechanism; 41-first bracket; 411-first side plate; 412-second side plate; 413-connecting plate; 414-positioning groove; 415-avoidance groove; 42-second bracket; 421-mounting plate; 4211-second mounting hole; 422-connecting arm; 4221-first connecting hole; 4212-slot; 4213-positioning platform;

[0029] 50-body longitudinal beam; 51-connecting groove. DETAILED DESCRIPTION

[0030] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of 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.

[0031] Unless otherwise clearly specified and limited, the terms "disposed", "installed", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0033] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0034] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0035] As attached Figure 1 As shown, the X-axis, Y-axis, and Z-axis mentioned in the present invention are based on the vehicle coordinate system. The vehicle coordinate system is a special moving coordinate system used to describe the movement of a car. Its origin coincides with the center of mass of the vehicle. When the vehicle is stationary on a horizontal road, the X-axis is parallel to the ground and points to the front of the vehicle, the Y-axis points to the left side of the driver, and the Z-axis passes through the center of mass of the car and points upward.

[0036] As attached Figure 1As shown, the utility model proposes a rear traction device assembly of a vehicle, including a hook body 10, a beam body 20 and a connecting component, the connecting component including a first connecting mechanism 30 and a second connecting mechanism 40, the hook body 10 is installed on the beam body 20 through the first connecting mechanism 30, and the second connecting mechanism 40 is used to detachably connect the beam body 20 to the longitudinal beam 50 of the vehicle body. Through the arrangement of the first connecting mechanism 30 and the second connecting mechanism 40, it is convenient to install the hook body 10 on the beam body 20, and to install the beam body 20 and the hook body 10 on the vehicle body, which is convenient for disassembly and assembly, and the connection is stable, thereby improving the traction efficiency of the vehicle.

[0037] In one example, the first connecting mechanism 30 is located at the front end of the beam body 20 and is connected to one end of the hook body 10. With this arrangement, the beam body 20 can shield and protect the first connecting mechanism 30 and the hook body 10, preventing the first connecting mechanism 30 and the hook body 10 from being damaged in a vehicle collision accident.

[0038] In one example, the second connection mechanism 40 is located at the front end of the beam body 20 , and the beam body 20 can shield and protect the second connection mechanism 40 to prevent the second connection mechanism 40 from being damaged in a vehicle collision accident.

[0039] As attached Figure 2 As shown, the hook body 10 includes a towing hook 11 and a driving mechanism 12. The driving mechanism 12 is electrically connected to the vehicle body and connected to one end of the towing hook 11 to drive the towing hook 11 to rotate so that the position of the towing hook 11 relative to the beam body 20 changes. The driving mechanism 12 is installed on the beam body 20 through a first connecting mechanism 30. Figure 3 A connecting ring 111 is provided at one end of the towing hook 11 close to the driving mechanism 12. The connecting ring 111 is sleeved on the output shaft 121 of the driving mechanism 12. The output shaft 121 drives the connecting ring 111 to rotate synchronously, thereby realizing the position change of the towing hook 11. The end of the towing hook 11 away from the connecting ring 111 is used to connect a towing rope or other vehicles.

[0040] In one example, the connecting ring 111 and the towing hook 11 are integrally formed.

[0041] In one example, the end of the towing hook 11 away from the connecting ring 111 has a ring-shaped member to facilitate connection with the towing device or towing rope of other vehicles. The end of the towing hook 11 away from the connecting ring 111 can also be set to a hook-shaped structure to facilitate hooking other vehicles.

[0042] As attached Figure 3As shown, when one end of the towing hook 11 is driven by the driving mechanism 12 to rotate to the rear end of the protruding beam body 20 and is roughly perpendicular to the beam body 20, the hook body 10 is in a state where the vehicle can be towed; when one end of the towing hook 11 is rotated to be stored at the front end of the beam body 20, the hook body 10 is in a retracted state, which can not affect the harmony of the overall appearance of the beam body 20, and the beam body 20 can protect the hook body 10 to prevent damage to the hook body 10 in a collision accident.

[0043] In one example, the driving mechanism 12 is a motor.

[0044] In one example, the connecting ring 111 is fixed to the output shaft 121 by a nut, which is convenient for disassembly, assembly and replacement and has high maintainability.

[0045] As attached Figure 2 As shown, the beam body 20 includes a buffer cavity 21, and the buffer cavity 21 runs through both ends of the beam body 20 along the Y direction. The setting of the buffer cavity 21 enables the beam body 20 to be easily collapsed when a collision accident occurs to the vehicle. The buffer cavity 21 can provide space for the deformation and collapse of the beam body 20, so as to protect the first connecting mechanism 30 and the second connecting mechanism 40 and other structures of the vehicle body.

[0046] In one example, a plurality of reinforcing ribs are disposed at intervals in the buffer cavity 21 to enhance the structural strength of the beam body 20 .

[0047] In one example, the cross-sectional shape of the beam body 20 is approximately rectangular. The beam body 20 includes two first plates spaced apart along the X direction and two second plates spaced apart along the Z direction. The buffer cavity 21 is formed by the first plate and the second plate. With this arrangement, the beam body 20 has good structural strength and facilitates the positioning and installation of the first connecting mechanism 30 and the second connecting mechanism 40.

[0048] In one example, the beam body 20 is made of aluminum or an aluminum alloy.

[0049] Combined with Figure 2 and attached Figure 3 The first connecting mechanism 30 includes a base 31 and two fixing members 32. The driving mechanism 12 is installed on the base 31. The two fixing members 32 are located on both sides of the base 31 along the Y direction and are connected to the base 31. The fixing members 32 are used to realize the connection between the base 31 and the beam body 20.

[0050] In one example, the base 31 is a metal member, such as a stainless steel member, which has good structural strength.

[0051] In one example, the base 31 is connected to the driving mechanism 12 by bolts.

[0052] In another example, the base 31 and the driving mechanism 12 are welded or integrally formed.

[0053] As attached Figure 2 As shown, the fixing member 32 is provided with a fixing groove 321 at one end close to the beam body 20, and the fixing groove 321 penetrates the fixing member 32 along the Y direction, so that the fixing member 32 forms two clamping arms 322 in the Z direction, and the two clamping arms 322 cooperate with the beam body 20. When the fixing member 32 is connected to the beam body 20, the beam body 20 is at least partially installed in the fixing groove 321, so that the two clamping arms 322 overlap the two ends of the beam body 20 in the Z direction, so as to realize the rapid positioning of the fixing member 32 and the beam body 20, and facilitate the rapid connection of the fixing member 32 and the beam body 20.

[0054] In one example, the fixing member 32 is connected to the beam body 20 by welding. Such a setting can maintain the structural integrity of the beam body 20 and ensure the structural strength of the beam body 20. The clamping arm 322 can increase the contact area between the fixing member 32 and the beam body 20, further improving the connection quality.

[0055] In one example, as shown in the attached Figure 3 As shown, a fixing hole 323 is provided on one side of the fixing member 32 close to the base 31 , and an opening matching with the fixing hole 323 is provided on the base 31 . The fixing hole 323 and the opening are used to realize the connection between the fixing member 32 and the base 31 .

[0056] Optionally, the fixing hole 323 and the opening are both configured as screw holes, and the base 31 and the fixing member 32 can be connected by screwing. Such a configuration is convenient for disassembly and assembly, and for maintenance and repair of the hook body 10. If the hook body 10 is damaged or requires maintenance, the base 31 can be removed relative to the fixing member 32 and replaced with a new hook body 10, which has strong maintainability.

[0057] Optionally, two fixing holes 323 are provided and are opened on the fixing member 32 at intervals along the Z direction.

[0058] In another example, the fixing member 32 and the base 31 are connected by welding or are integrally formed.

[0059] In one example, the fixing member 32 is a metal member, such as a stainless steel member, which has good structural strength.

[0060] As attached Figure 2 As shown, the second connection mechanism 40 is used to connect the beam body 20 and the vehicle body longitudinal beam 50, and make the beam body 20 and the vehicle body longitudinal beam 50 detachable. Two second connection mechanisms 40 are provided and are arranged at the front ends of both sides of the beam body 20 in the Y direction.

[0061] Combined with Figure 2 and attached Figure 3The second connecting mechanism 40 includes a first bracket 41 and a second bracket 42 . The first bracket 41 and the second bracket 42 are connected. The first bracket 41 is used to connect the beam body 20 and the second bracket 42 , and the second bracket 42 is used to connect the vehicle body longitudinal beam 50 .

[0062] The first bracket 41 and the second bracket 42 are detachably connected, and / or the second bracket 42 and the vehicle body longitudinal beam 50 are detachably connected, both of which can realize the detachability between the beam body 20 and the vehicle body longitudinal beam 50 .

[0063] In one example, the first bracket 41 and the second bracket 42 are both made of metal, such as stainless steel.

[0064] As attached Figure 4 As shown, the first bracket 41 includes a first side plate 411, a second side plate 412 and a connecting plate 413. The first side plate 411 and the second side plate 412 are spaced apart along the Y direction, and the first side plate 411 and the second side plate 412 are connected at one end away from the beam body 20 by a connecting plate 413, and the connecting plate 413 is used to connect to the second bracket 42.

[0065] In one example, the first side plate 411 , the second side plate 412 and the connecting plate 413 are integrally formed.

[0066] In one example, the first side plate 411 and the second side plate 412 are arranged in parallel.

[0067] As attached Figure 4 As shown, a positioning groove 414 is formed at one end of the first side plate 411 and the second side plate 412 close to the beam body 20. The positioning groove 414 penetrates the first side plate 411 and the second side plate 412 along the Y direction, and the Z-direction height of the positioning groove 414 matches the Z-direction height of the beam body 20. When the first bracket 41 is connected to the beam body 20, the beam body 20 is at least partially installed in the positioning groove 414 to enable the first bracket 41 and the beam body 20 to be quickly positioned and convenient for connection.

[0068] In one example, the first side plate 411 and the second side plate 412 are connected to the beam body 20 by welding. Such a configuration can maintain the structural integrity of the beam body 20 and ensure the structural strength of the beam body 20. The first bracket 41 and the beam body 20 are welded as one body, and the connection strength is good.

[0069] As attached Figure 4 As shown, the second bracket 42 includes a mounting plate 421 and a connecting arm 422. The connecting arm 422 is located at the front end of the mounting plate 421 and one end thereof is connected to the mounting plate 421. The mounting plate 421 is used to be connected to the connecting plate 413. The end of the connecting arm 422 away from the mounting plate 421 is connected to the vehicle body longitudinal beam 50.

[0070] In one example, a first mounting hole is provided on the connecting plate 413, and the first mounting hole penetrates the connecting plate 413 along the X direction. Figure 5 A second mounting hole 4211 is opened on the mounting plate 421 , and the second mounting hole 4211 penetrates the mounting plate 421 along the X direction. The first mounting hole cooperates with the second mounting hole 4211 to realize the connection between the connecting plate 413 and the mounting plate 421 .

[0071] Optionally, the connecting plate 413 and the mounting plate 421 are detachably connected by screwing, and the first mounting hole and the second mounting hole 4211 are both configured as screw holes. Such a configuration can achieve a detachable connection between the first bracket 41 and the second bracket 42, with a simple structure, easy disassembly and assembly, and convenient subsequent maintenance, thereby reducing maintenance costs.

[0072] Optionally, two second mounting holes 4211 are provided and opened on both sides of the slot 4212 along the Z direction.

[0073] In one example, the connecting plate 413 and the mounting plate 421 are connected by welding or gluing, and the connection is firm.

[0074] In one example, the connecting plate 413 and the mounting plate 421 may be integrally formed.

[0075] Combined with Figure 3 and attached Figure 4 The vehicle body longitudinal beam 50 includes a connecting groove 51 , one end of the connecting arm 422 is connected to the mounting plate 421 , and the other end is installed in the connecting groove 51 and connected to the groove wall of the connecting groove 51 .

[0076] In one example, a first connecting hole 4221 is opened on the connecting arm 422, and the first connecting hole 4221 passes through at least one end of the connecting arm 422 close to the wall of the connecting groove 51. A second connecting hole is opened on the vehicle body longitudinal beam 50, and the second connecting hole is connected to the connecting groove 51, and the second connecting hole is cooperatively connected with the first connecting hole 4221.

[0077] Optionally, the first connecting hole 4221 and the second connecting hole are both configured as screw holes, and the connection between the connecting arm 422 and the vehicle body longitudinal beam 50 is achieved by screwing. Such a configuration can achieve a detachable connection between the second bracket 42 and the vehicle body longitudinal beam 50, with a simple structure and easy disassembly and assembly.

[0078] Optionally, a welding nut is provided in the first connecting hole 4221, and the second connecting hole is set as a screw hole, and the connection between the connecting arm 422 and the vehicle body longitudinal beam 50 is achieved by screwing. Such a setting can achieve a detachable connection between the second bracket 42 and the vehicle body longitudinal beam 50, with a simple structure and easy disassembly and assembly.

[0079] Optionally, two first connection holes 4221 are provided and are opened on the connecting arm 422 at intervals along the X direction.

[0080] In one example, a slot 4212 is provided on the mounting plate 421. The slot 4212 penetrates the mounting plate 421 along the X direction and is used to connect with the connecting arm 422. One end of the connecting arm 422 is installed in the slot 4212. Through the cooperation between the slot 4212 and the connecting arm 422, a quick positioning connection can be achieved.

[0081] Optionally, the connecting arm 422 and the slot 4212 are interference fit.

[0082] Optionally, one end of the connecting arm 422 is fixed in the slot 4212 by welding or gluing.

[0083] Optionally, a positioning platform 4213 is protruding from at least one end of the mounting plate 421 along the X direction, and the slot 4212 passes through the mounting plate 421 and the positioning platform 4213. The setting of the positioning platform 4213 can increase the slot depth of the slot 4212 in the X direction, increase the contact area between the connecting arm 422 and the mounting plate 421, and improve the stability of the connection.

[0084] Optionally, the positioning platform 4213 and the mounting plate 421 are integrally formed.

[0085] As attached Figure 2 As shown, the hook body 10 also includes an external connecting member 13, which is installed on the beam body 20 and is used to connect the external traction rope. Figure 4 A through hole cooperating with the external connecting member 13 is opened on the beam body 20, and the external connecting member 13 is installed in the through hole. The external connecting member 13 includes a traction hole 131. The traction hole 131 passes through the rear end of the external connecting member 13 along the X direction. One end of the traction rope is detachably installed in the traction hole 131. When the vehicle needs to be towed, the traction rope can be installed on the external connecting member 13 to connect with other vehicles.

[0086] In one example, the traction hole 131 passes through both ends of the external connection member 13 along the X direction.

[0087] In one example, the traction hole 131 is set as a screw hole, and one end of the traction rope is connected to a fixing bolt and is screwed to the traction hole 131 through the fixing bolt.

[0088] In one example, the external connection member 13 is fixed in the through hole of the beam body 20 by welding.

[0089] As attached Figure 4As shown, the second connecting mechanism 40 close to the side of the external connecting member 13 is provided with an avoidance groove 415 at one end close to the beam body 20. More specifically, the first side plate 411 or the second side plate 412 is provided with an avoidance groove 415 at one end close to the beam body 20. The avoidance groove 415 is connected to the positioning groove 414. One end of the external connecting member 13 is installed in the avoidance groove 415. The groove wall of the avoidance groove 415 in the Z direction can support and limit the external connecting member 13. The groove wall of the avoidance groove 415 in the X direction can position the external connecting member 13, thereby improving the installation quality of the external connecting member 13.

[0090] In one example, the avoidance groove 415 is interference fit with the external connection member 13 .

[0091] In one example, the end of the external connection member 13 is fixed in the avoidance groove 415 by welding, so as to ensure that the connection of the external connection member 13 is stable and secure.

[0092] The working principle of the rear traction device assembly of the vehicle proposed by the utility model is as follows: when the vehicle is in a state where active traction or towing is required, the rear anti-collision beam connected to the vehicle body longitudinal beam 50 can be removed, and the beam body 20 and the hook body 10 thereon can be connected to the vehicle body longitudinal beam 50 through the second connecting mechanism 40 to complete the installation. Subsequently, the vehicle can be connected to other vehicles through the hook body 10 as needed to achieve the traction function.

[0093] The rear traction device assembly of the vehicle adopting the utility model can install the hook body 10 on the beam body 20 by setting the first connection mechanism 30, and can install the beam body 20 on the longitudinal beam 50 of the vehicle body by setting the second connection mechanism 40. The hook body 10 and the beam body 20 can be installed on the vehicle body or removed from the vehicle body through the second connection mechanism 40. The structure is simple and convenient for disassembly, assembly and maintenance. The first connection mechanism 30 and the second connection mechanism 40 can increase the connection stability, ensure the overall structural strength, and then ensure the traction efficiency of the vehicle, which is conducive to improving the user experience.

[0094] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A rear traction device assembly for a vehicle, characterized in that: The invention comprises a hook body (10), a beam body (20) and a connecting assembly, wherein the connecting assembly comprises a first connecting mechanism (30) and a second connecting mechanism (40), the hook body (10) comprises a towing hook (11) and a driving mechanism (12), the driving mechanism (12) is connected to the towing hook (11) and is used to drive the towing hook (11) to rotate relative to the beam body (20), the driving mechanism (12) is installed on the beam body (20) through the first connecting mechanism (30), and the second connecting mechanism (40) is used to detachably connect the beam body (20) to the longitudinal beam (50) of the vehicle body.

2. The rear traction device assembly of a vehicle according to claim 1, characterized in that: The first connecting mechanism (30) comprises a base (31) and two fixing members (32); the driving mechanism (12) is mounted on the base (31); the fixing members (32) are located on both sides of the base (31) along the Y direction; and the fixing members (32) are used to connect the base (31) and the beam body (20).

3. The rear traction device assembly of a vehicle according to claim 2, characterized in that: A fixing groove (321) is provided at one end of the fixing member (32) close to the beam body (20), and the fixing groove (321) penetrates the fixing member (32) along the Y direction, so that the fixing member (32) has two clamping arms (322) that cooperate with the beam body (20) in the Z direction, and the beam body (20) is at least partially accommodated in the fixing groove (321), and the two clamping arms (322) are overlapped at two ends of the beam body (20).

4. The rear traction device assembly of a vehicle according to claim 2, characterized in that: The fixing member (32) is provided with a fixing hole (323), the base (31) is provided with an opening, and the fixing hole (323) is matched and connected with the opening.

5. The rear traction device assembly of a vehicle according to claim 1, characterized in that: The second connection mechanism (40) comprises a first bracket (41) and a second bracket (42), the first bracket (41) being connected to the second bracket (42), the first bracket (41) being connected to the beam body (20), and the second bracket (42) being connected to the vehicle body longitudinal beam (50).

6. The rear traction device assembly of a vehicle according to claim 5, characterized in that: The first bracket (41) comprises a first side plate (411), a second side plate (412) and a connecting plate (413); the first side plate (411) and the second side plate (412) are arranged at intervals along the Y direction, and ends of the first side plate (411) and the second side plate (412) away from the beam body (20) are connected by the connecting plate (413); and the connecting plate (413) is connected to the second bracket (42).

7. The rear traction device assembly of a vehicle according to claim 6, characterized in that: A positioning groove (414) is provided at one end of the first side plate (411) and the second side plate (412) close to the beam body (20); the positioning groove (414) penetrates the first side plate (411) and the second side plate (412) along the Y direction; when the first bracket (41) is connected to the beam body (20), the beam body (20) is at least partially installed in the positioning groove (414).

8. The rear traction device assembly of a vehicle according to claim 6, characterized in that: The second bracket (42) comprises a mounting plate (421) and a connecting arm (422), wherein the mounting plate (421) is connected to the connecting plate (413), and one end of the connecting arm (422) is connected to the mounting plate (421), and the other end is connected to the vehicle body longitudinal beam (50).

9. The rear traction device assembly of a vehicle according to claim 8, characterized in that: The connecting arm (422) cooperates with the connecting groove (51) on the vehicle body longitudinal beam (50); one end of the connecting arm (422) away from the mounting plate (421) is installed in the connecting groove (51) and connected to the groove wall of the connecting groove (51).

10. The rear traction device assembly of a vehicle according to claim 1, characterized in that: The hook body (10) further comprises an external connecting piece (13), wherein the external connecting piece (13) is mounted on the beam body (20), and the external connecting piece (13) is used to connect a traction rope.

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