Rear dragging device and vehicle

Abstract

The invention provides a rear dragging device. The rear dragging device comprises an anti-collision beam, a tow hook and a mounting assembly. The tow hook is mounted on the anti-collision beam; the installation assemblies are arranged at the two ends of the anti-collision beam. Each installation assembly comprises a first installation piece and a second installation piece. The first mounting piece is connected with the anti-collision beam in the left-right direction of the vehicle; the first mounting piece and the second mounting piece are connected in the front-back direction and the preset direction of the vehicle; the second mounting part is used for being connected with a vehicle longitudinal beam, the second mounting part is connected with the vehicle longitudinal beam in the left-right direction of the vehicle and the height direction of the vehicle, and the preset direction is different from the left-right direction of the vehicle, the front-back direction of the vehicle and the height direction of the vehicle. According to the rear dragging device, impact force can be steered for multiple times, the impact force can be well decomposed and absorbed, and therefore a longitudinal beam of a vehicle is effectively prevented from being damaged, and the maintenance cost of the vehicle is saved.

Description

Technical Field

[0001] This invention relates to the field of vehicle component technology, and in particular to a rear towing device. Furthermore, this invention also relates to a vehicle using this rear towing device. Background Technology

[0002] In our daily lives, cars have become an indispensable means of transportation. With the development of the automotive industry, people have increasingly higher demands for car functions, and the need for towing small caravans or off-road vehicles is becoming more and more popular among users. However, if an existing car is to be equipped with towing capabilities, it generally requires modification of the existing vehicle and the installation of an additional towing device.

[0003] A car towing device is a functional component that provides towing capability. It generally includes a tow hook. In accordance with the regulatory requirements of the European Union and North American countries for exported vehicles, car towing devices are usually installed in the Z-direction on both sides of the longitudinal beams of the rear floor of a monocoque vehicle body.

[0004] A trailer hitch, also known as a trailer ball, trailer bolt, or trailer connector, is a device used to connect a towing vehicle and a vehicle to be towed. It is typically made of a sturdy metal material, such as steel or cast iron, to ensure sufficient strength and durability during towing. The trailer hitch is generally installed at the rear of the towing vehicle, and its position and angle must be suitable for connecting the towed vehicle. Its main function is to provide a robust connection point so that the towed vehicle can safely follow the towing vehicle.

[0005] Anti-collision beams, typically referring to the main structural components of the front and rear bumper systems of a vehicle, are located inside the front and rear bumpers. As the vehicle's first line of defense, they restrict contact during a collision, playing a crucial role in protecting the vehicle's internal structure and passengers. Specifically, in the event of a collision, anti-collision beams can absorb impact energy through deformation, reducing the force transmitted to the vehicle's internal structure and lowering the risk of passenger injury. Anti-collision beams are usually made of high-strength steel, and sometimes aluminum alloys, plastics, or composite materials are used to ensure sufficient strength and lightweight construction.

[0006] Currently, after the car towing device is assembled in the Z-axis direction, it coexists with the rear bumper beam, rendering the bumper beam ineffective and resulting in wasted resources. In addition, consumers' demand for trunk capacity is increasing, so the spare tire pit in the rear floor is made very deep. In order to avoid the deep spare tire pit, the cantilever connecting the towing device and the rear floor longitudinal beam needs to be made very long.

[0007] Therefore, installing the car towing device only in the Z-axis will lead to uneven force distribution, making it prone to shaking during towing. This is not conducive to improving the overall NVH (Noise, Vibration, Harshness) performance and handling stability of the vehicle. Furthermore, when the vehicle is subjected to impact force, it is not conducive to dispersing and absorbing the impact force, which can cause damage to the vehicle's longitudinal beams and increase maintenance costs. Summary of the Invention

[0008] In view of this, the present invention aims to provide a rear towing device that can steer the impact force multiple times, decompose and absorb the impact force received by the vehicle, and save vehicle maintenance costs.

[0009] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0010] A rear towing device includes a crash beam, a trailer hitch, and a mounting assembly;

[0011] The trailer hitch is mounted on the anti-collision beam;

[0012] The anti-collision beam is provided with the mounting components at both ends, and each mounting component includes a first mounting part and a second mounting part;

[0013] The first mounting component is connected to the anti-collision beam in the left-right direction of the vehicle; the first mounting component and the second mounting component are connected in the front-rear direction and a preset direction of the vehicle; the second mounting component is used to connect to the longitudinal beam of the vehicle, and the second mounting component is connected to the longitudinal beam of the vehicle in the left-right direction and the height direction of the vehicle, wherein the preset direction is different from the left-right direction, the front-rear direction, and the height direction of the vehicle.

[0014] Furthermore, the first mounting component includes a first longitudinal plate, a first transverse plate, and a first inclined plate, wherein the first longitudinal plate, the first transverse plate, and the first inclined plate are bent and connected in sequence, and the first longitudinal plate and the first inclined plate are located on the same side of the first transverse plate.

[0015] The first longitudinal plate is welded to the anti-collision beam in the left-right direction of the vehicle;

[0016] The first horizontal plate and the vehicle longitudinal beam are detachably connected in the front-rear direction of the vehicle via a first connector.

[0017] The first inclined plate and the second mounting member are detachably connected in the preset direction via a second connector.

[0018] Furthermore, the first mounting component also includes a first reinforcing plate and a second reinforcing plate, which are arranged at a distance from each other in the height direction of the vehicle.

[0019] The two sides of the first reinforcing plate are respectively connected to the first longitudinal plate and the first transverse plate;

[0020] The second reinforcing plate is connected to the first longitudinal plate, the first transverse plate, and the first inclined plate on three sides, respectively.

[0021] Furthermore, the upper part of the first inclined plate is provided with a clearance opening for avoiding the rear enclosure, and the first reinforcing plate is provided corresponding to the clearance opening;

[0022] The first reinforcing plate is provided with a strip-shaped hole, and the length direction of the strip-shaped hole is provided with an angle between the first horizontal plate and the first vertical plate.

[0023] Furthermore, the second mounting component includes a second horizontal plate and a second vertical plate connected together. The second horizontal plate is detachably connected to the bottom plate of the vehicle longitudinal beam via a third connector, and the second vertical plate is detachably connected to the side plate of the vehicle longitudinal beam via a fourth connector.

[0024] The rear part of the second horizontal plate is provided with a downwardly extending first extension plate, and the first extension plate is connected to the first horizontal plate through the first connector.

[0025] The rear part of the second longitudinal plate is provided with a second extension plate extending outward and rearward, and the second extension plate is connected to the first inclined plate in the preset direction by the second connector.

[0026] Furthermore, the first connector, the second connector, the third connector, and the fourth connector are all bolt pairs.

[0027] Furthermore, a gap of not less than 5mm is provided between the first transverse plate and the vehicle longitudinal beam.

[0028] Furthermore, the anti-collision beam has a cavity inside, which extends along the left and right direction of the vehicle.

[0029] Furthermore, two mounting plates are installed on the anti-collision beam, and the two mounting plates are arranged at a distance from each other in the left-right direction of the vehicle;

[0030] Each of the mounting plates is provided with a clamping member, and both clamping members are elastically deformable. The trailer hook can enter between the two clamping members and be clamped by the two clamping members.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] (1) The rear towing device of the present invention is assembled with a crash beam, a trailer hitch and a mounting assembly, and the mounting assembly is connected to the vehicle longitudinal beam. The resulting installation structure is simple and has fewer parts. The crash beam here is smaller and lighter than the existing crash beam, and the existing trailer hitch installation structure such as the rear towing device mounting beam can be eliminated. The number of parts is less. In addition, the connection direction between the parts includes four directions, the structure has high strength, and it is beneficial to improve the NVH performance and handling stability of the whole vehicle. When the vehicle is subjected to impact force, the crash beam and the mounting assembly can deflect the impact force multiple times, which can better decompose and absorb the impact force, thereby effectively preventing damage to the vehicle longitudinal beam and saving vehicle maintenance costs.

[0033] (2) The first mounting component includes a first longitudinal plate, a first transverse plate and a first inclined plate, which facilitates connection with the anti-collision beam and the vehicle longitudinal beam. The first transverse plate is detachably connected to the vehicle longitudinal beam through the first connector, which is convenient for installation, disassembly and maintenance. The first inclined plate is detachably connected to the second mounting component through the second connector, which also has the beneficial effect of convenient installation, disassembly and maintenance.

[0034] (3) The first mounting component includes a first reinforcing plate and a second reinforcing plate. The two sides of the first reinforcing plate are connected to the first longitudinal plate and the first transverse plate, respectively. The three sides of the second reinforcing plate are connected to the first longitudinal plate, the first transverse plate and the first inclined plate, respectively. This can improve the structural strength of the first mounting component itself, thereby improving the installation reliability of the anti-collision beam and helping to improve the anti-collision performance of the vehicle.

[0035] (4) Setting an avoidance notch can prevent interference with the rear enclosure, facilitate overall assembly, and not affect the existing structure of the vehicle. Setting a strip hole on the first reinforcing plate can play a certain role in weight reduction. At the same time, it can also distinguish the first reinforcing plate and the second reinforcing plate, which facilitates assembly, helps prevent assembly errors, and improves assembly efficiency. The length direction of the strip hole is set with an angle between the first horizontal plate and the first vertical plate, which can make the force on the first vertical plate better transmitted to the first horizontal plate through the first reinforcing plate, thereby helping to prevent damage to parts.

[0036] (5) The second mounting component includes a second horizontal plate and a second vertical plate, which facilitates detachable connection with the longitudinal beam and makes assembly, disassembly and maintenance convenient. The first extension plate and the second extension plate can be easily connected with the first horizontal plate and the first inclined plate, and are conducive to better absorption and decomposition of collision force.

[0037] (6) The first, second, third and fourth connecting parts are all bolt pairs, which can use existing standard parts, thus reducing production costs, ensuring reliable connection, and facilitating assembly, disassembly and maintenance.

[0038] (7) A gap of not less than 5mm is provided between the first horizontal plate and the vehicle longitudinal beam to prevent interference with the rear panel and to prevent damage to the rear panel when the vehicle is subjected to impact force, thereby reducing the vehicle's maintenance cost and meeting the collision performance requirements.

[0039] (8) The interior of the anti-collision beam is made to have a cavity, which makes the anti-collision beam lighter, has better structural strength, and can transmit the impact force to the left and right sides of the vehicle.

[0040] (9) Install a mounting plate on the anti-collision beam and install clamping parts on the mounting plate. During assembly, the trailer hook can be clamped by the two clamping parts, which can pre-fix the trailer hook, improve the convenience of trailer hook installation, and help save assembly time and assembly costs.

[0041] Another object of the present invention is to provide a vehicle equipped with a rear towing device as described above.

[0042] The vehicle described in this invention, by employing the aforementioned rear towing device, helps to improve the overall NVH performance and handling stability of the vehicle. When the vehicle is subjected to an impact force, the anti-collision beam and mounting components can steer the impact force multiple times, effectively decomposing and absorbing the impact force, thereby effectively preventing damage to the vehicle's longitudinal beams and saving vehicle maintenance costs. Attached Figure Description

[0043] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0044] Figure 1 This is a structural diagram of the drag-and-drop device in its application state according to an embodiment of the present invention;

[0045] Figure 2 This is a schematic diagram of the structure of the rear dragging device according to an embodiment of the present invention;

[0046] Figure 3 This is an exploded view of the mounting components and vehicle longitudinal beams described in an embodiment of the present invention;

[0047] Figure 4 This is a schematic diagram of the structure of the vehicle longitudinal beam according to an embodiment of the present invention;

[0048] Figure 5 This is a schematic diagram of the structure of the lower reinforcing plate and the end plate connecting plate according to an embodiment of the present invention;

[0049] Figure 6 This is a schematic diagram of the structure of the first connector without the first and second reinforcing plates as described in an embodiment of the present invention;

[0050] Figure 7 This is a schematic diagram of the assembly of the clamping component and the mounting plate according to an embodiment of the present invention.

[0051] Explanation of reference numerals in the attached figures:

[0052] 1. Anti-collision beam; 101. Mounting plate; 1011. Mounting groove; 102. Clamping component; 1021. Opening;

[0053] 2. Tow hook;

[0054] 3. Mounting components; 301. First mounting component; 3011. First longitudinal plate; 3012. First transverse plate; 30121. First connecting hole; 3013. First inclined plate; 30131. Clearance notch; 30132. Second connecting hole; 3014. First reinforcing plate; 30141. Strip hole; 3015. Second reinforcing plate; 302. Second mounting component; 3021. Second transverse plate; 30211. Third connecting hole; 3022. Second longitudinal plate; 30221. Fourth connecting hole; 3023. First extension plate; 30231. First corresponding hole; 3024. Second extension plate; 30241. Second corresponding hole;

[0055] 4. Vehicle longitudinal beam; 401. Lower plate of vehicle longitudinal beam; 4011. First bottom guard plate mounting hole; 4012. Second bottom guard plate mounting hole; 4013. Fourth mounting hole; 4014. Fifth mounting hole; 4015. Sixth mounting hole; 4016. Seventh mounting hole; 4017. Eighth mounting hole; 4018. Reinforcing rib; 402. Upper reinforcing plate; 403. Lower reinforcing plate; 4031. Second mounting hole; 4032. Third mounting hole; 404. Front end plate; 4041. Round hole; 4042. First mounting hole; 405. End plate connector; 4051. Fifth connecting hole;

[0056] 5. First connector; 6. Second connector; 7. Third connector; 8. Fourth connector; 9. Fifth connector. Detailed Implementation

[0057] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0058] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "back," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] Taking the vehicle containing the rear towing device described in this invention as an example, the directional terms used in the embodiments, such as "up," "down," "left," "right," "front," and "rear," are defined based on the vehicle's vertical direction (also known as the height direction, or the vehicle's Z-direction), horizontal direction (also known as the width direction, or the vehicle's Y-direction), and front-back direction (also known as the length direction, or the vehicle's X-direction). "Inner" and "outer" are defined based on the outline of the corresponding components. For example, "inner" and "outer" are defined based on the vehicle's outline, with the side of the vehicle outline closer to the middle of the vehicle being "inner," and vice versa.

[0060] Furthermore, in the description of this invention, unless otherwise explicitly defined, the terms "installation," "connection," "linking," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention in light of the specific circumstances.

[0061] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0062] Example 1

[0063] This embodiment relates to a rear towing device that can deflect impact forces multiple times, effectively dispersing and absorbing the impact force, thereby preventing damage to the vehicle's longitudinal beam 4 and saving on vehicle maintenance costs. In terms of overall structure, refer to... Figures 1 to 7 As shown in the figure, the rear towing device of this embodiment includes a crash beam 1, a trailer hitch 2, and a mounting assembly 3.

[0064] The trailer hitch 2 is mounted on the crash beam 1, and both ends of the crash beam 1 are equipped with mounting components 3. Each mounting component 3 includes a first mounting member 301 and a second mounting member 302. The first mounting member 301 is connected to the crash beam 1 in the left-right direction of the vehicle. The first mounting member 301 and the second mounting member 302 are connected in the front-rear direction and a preset direction of the vehicle. The second mounting member 302 is used to connect to the vehicle longitudinal beam 4. The second mounting member 302 is connected to the vehicle longitudinal beam 4 in the left-right direction and the height direction of the vehicle. The preset direction is different from the left-right direction, the front-rear direction, and the height direction of the vehicle.

[0065] At this point, with the above configuration, by assembling the anti-collision beam 1, trailer hitch 2, and mounting assembly 3 together, and connecting the mounting assembly 3 to the vehicle longitudinal beam 4, the resulting installation structure is simple and has fewer parts. The anti-collision beam 1 here is smaller and lighter than the existing anti-collision beam 1, and the existing trailer hitch 2 installation structure, such as the rear towing device mounting beam, can be eliminated, resulting in fewer parts. In addition, the connection directions between the various parts include four directions, resulting in high structural strength, which is beneficial to improving the overall vehicle NVH performance and handling stability. When the vehicle is subjected to impact force, the anti-collision beam 1 and mounting assembly 3 can deflect the impact force multiple times, which can better decompose and absorb the impact force, thereby effectively preventing damage to the vehicle longitudinal beam 4 and saving vehicle maintenance costs.

[0066] Specifically, it should be noted that for vehicles using the rear towing device of this embodiment, the preset direction mentioned above is the direction perpendicular to the first inclined plate 3013 described below. Therefore, in addition to the connection along the front-rear direction of the vehicle, the first mounting member 301 and the second mounting member 302 are connected along the preset direction of the vehicle, which further enhances the connection stability between the first mounting member 301 and the second mounting member 302.

[0067] Furthermore, in this embodiment, based on the first mounting component 301 and the second mounting component 302 in the mounting assembly 3 described above, as well as the connection between the vehicle longitudinal beam 4 and the second mounting component 302, and the connection between the anti-collision beam 1 and the first mounting component 301, the impact force can be redirected multiple times when the vehicle is hit, thereby better decomposing and absorbing the impact force, which can effectively prevent damage to the vehicle longitudinal beam 4, and thus help save vehicle maintenance costs.

[0068] At this time, the aforementioned vehicle longitudinal beam 4 serves as the mounting base for the rear towing device and is fixed to the vehicle body. The two ends of the anti-collision beam 1 are respectively connected to the first mounting member 301 along the left and right directions of the vehicle. At the same time, the first mounting member 301 is connected to the vehicle longitudinal beam 4 along the front and rear directions of the vehicle. The second mounting member 302 is installed on the first mounting member 301 along the front and rear directions of the vehicle and the preset direction, and is connected to the vehicle longitudinal beam 4 along the left and right directions and the height direction of the vehicle.

[0069] Therefore, with the coordinated arrangement of the first mounting component 301, the second mounting component 302, the anti-collision beam 1, and the vehicle longitudinal beam 4, and through the connection in four directions, this embodiment can achieve multiple deflections of the impact force to decompose and absorb the impact force, effectively preventing damage to the vehicle longitudinal beam 4 and helping to save vehicle maintenance costs.

[0070] Meanwhile, considering that the mounting component 3 on the left and the mounting component 3 on the right are basically the same in structure and can be regarded as mirror images of each other, in order to clearly describe the specific structure of the mounting component 3, the rear dragging device in this embodiment is specifically described using the mounting component 3 on the right as an example, and in Figures 3 to 6 The specific structure of mounting component 3 on the right is shown in the figure.

[0071] Based on the above design concept, the drag-and-drop device in this embodiment serves as an exemplary structure, such as... Figure 2 and Figure 3 As shown, the first mounting component 301 includes a first longitudinal plate 3011, a first transverse plate 3012, and a first inclined plate 3013. The first longitudinal plate 3011, the first transverse plate 3012, and the first inclined plate 3013 are sequentially bent and connected. The first longitudinal plate 3011 and the first inclined plate 3013 are located on the same side of the first transverse plate 3012. Furthermore, the first longitudinal plate 3011 is welded to the anti-collision beam 1 in the left-right direction of the vehicle. The first transverse plate 3012 is detachably connected to the vehicle longitudinal beam 4 in the front-rear direction of the vehicle via a first connecting member 5. The first inclined plate 3013 is detachably connected to the second mounting component 302 in the preset direction via a second connecting member 6.

[0072] At the same time, it is understood that the first mounting component 301 includes a first longitudinal plate 3011, a first transverse plate 3012 and a first inclined plate 3013, which facilitates connection with the anti-collision beam 1 and the vehicle longitudinal beam 4. The first transverse plate 3012 is detachably connected to the vehicle longitudinal beam 4 through the first connector 5, which facilitates assembly, disassembly and maintenance. The first inclined plate 3013 is detachably connected to the second mounting component 302 through the second connector 6, which also has the beneficial effect of facilitating assembly, disassembly and maintenance.

[0073] It is worth mentioning that, in this embodiment, the first horizontal plate 3012 and the vehicle longitudinal beam 4, and the first inclined plate 3013 and the second mounting component 302, can be connected by detachable connection methods well known to those skilled in the art, such as screw connection. Of course, in addition to screw connection, other common connection methods can also be used. Furthermore, the first longitudinal plate 3011 and the anti-collision beam 1 can be connected by welding or other common methods.

[0074] In specific implementation, refer to Figure 3 and Figure 6 As shown, the first horizontal plate 3012 has four first connecting holes 30121, with two holes on the top and two on the bottom. Meanwhile, the front end plate 404 of the vehicle longitudinal beam 4 has a first mounting hole 4042 corresponding to the upper first connecting hole 30121. By having the first connecting piece 5 pass through the first mounting hole 4042 and the first connecting hole 30121 in sequence, the first horizontal plate 3012 is fixed to the vehicle longitudinal beam 4.

[0075] Here, the specific number of the first connecting holes 30121 can be designed and adjusted according to the specific connection requirements between the first horizontal plate 3012 and the vehicle longitudinal beam 4, and between the first horizontal plate 3012 and the second extension plate 3024. Furthermore, the first inclined plate 3013 and the second mounting member 302 are connected and fixed by the second connector 6 passing through the second connecting holes 30132 on the first inclined plate 3013 and the second mounting member 302.

[0076] Specifically, in this embodiment, as a preferred implementation, refer to Figure 3 As shown, the first mounting component 301 also includes a first reinforcing plate 3014 and a second reinforcing plate 3015, which are arranged at a distance from each other in the height direction of the vehicle. The two sides of the first reinforcing plate 3014 are connected to the first longitudinal plate 3011 and the first transverse plate 3012, respectively, and the three sides of the second reinforcing plate 3015 are connected to the first longitudinal plate 3011, the first transverse plate 3012, and the first inclined plate 3013, respectively.

[0077] The advantage of this configuration is that the first mounting component 301 includes a first reinforcing plate 3014 and a second reinforcing plate 3015. The two sides of the first reinforcing plate 3014 are connected to the first longitudinal plate 3011 and the first transverse plate 3012, respectively, and the three sides of the second reinforcing plate 3015 are connected to the first longitudinal plate 3011, the first transverse plate 3012, and the first inclined plate 3013, respectively. This configuration can significantly improve the structural strength of the first mounting component 301, thereby enhancing the installation reliability of the anti-collision beam 1 and improving the vehicle's anti-collision performance.

[0078] In the specific structure, the four first connecting holes 30121 mentioned above are divided into two on each of the upper and lower sides by the second reinforcing plate 3015. Furthermore, in this embodiment, as a preferred implementation, such as... Figure 3 and Figure 6 As shown, the upper part of the first inclined plate 3013 is provided with a clearance notch 30131 for avoiding the rear enclosure, and the first reinforcing plate 3014 is provided corresponding to the clearance notch 30131. The first reinforcing plate 3014 is provided with a strip hole 30141, and the length direction of the strip hole 30141 is provided with an angle between it and the first horizontal plate 3012 and the first vertical plate 3011.

[0079] Here, the clearance notch 30131 is provided to prevent interference with the rear panel, facilitate overall assembly, and not affect the existing structure of the vehicle. The strip hole 30141 on the first reinforcing plate 3014 can play a certain role in weight reduction, and at the same time, it can distinguish the first reinforcing plate 3014 and the second reinforcing plate 3015, which facilitates assembly, helps prevent assembly errors, and improves assembly efficiency. The length direction of the strip hole 30141 is set at an angle with the first horizontal plate 3012 and the first vertical plate 3011, which can make the impact force on the first vertical plate 3011 better transmitted to the first horizontal plate 3012 through the first reinforcing plate 3014, thereby helping to prevent damage to the components.

[0080] It should be noted that a strip hole 30141 is provided on the first reinforcing plate 3014. When the vehicle is subjected to an impact force, the anti-collision beam 1 makes contact first, so that the impact force is transmitted from the anti-collision beam 1 to the first longitudinal plate 3011 along the left and right direction of the vehicle. The first longitudinal plate 3011 transmits the impact force to the first reinforcing plate 3014 and the second reinforcing plate 3015. At the same time, through the strip hole 30141 on the first reinforcing plate 3014, the impact force is transmitted again to the first transverse plate 3012 along the length direction of the strip hole 30141, so as to change the direction of the impact force. This can better decompose and absorb the impact force, thereby effectively preventing damage to the vehicle's longitudinal beam 4 and saving vehicle maintenance costs.

[0081] Furthermore, the setting of the strip hole 30141 on the first reinforcing plate 3014 allows the workers to distinguish between the first reinforcing plate 3014 and the second reinforcing plate 3015 during assembly, preventing them from being assembled incorrectly and wasting time, thereby improving assembly efficiency.

[0082] It is worth mentioning that, in addition to the currently set elongated shape, the shape of the strip hole 30141 in this embodiment can also be set to other common shapes, as long as it can satisfy the requirement that the first longitudinal plate 3011 transmits the impact force from the anti-collision beam 1 to the first transverse plate 3012.

[0083] Secondly, in this embodiment, the first reinforcing plate 3014 and the second reinforcing plate 3015 are both arranged horizontally to better transmit the impact force from the first longitudinal plate 3011, thereby better decomposing and absorbing the impact force, which can effectively prevent damage to the vehicle longitudinal beam 4 and thus help save vehicle maintenance costs.

[0084] Similarly, as a preferred embodiment, in this embodiment, refer to... Figure 3 As shown, the second mounting component 302 includes a second horizontal plate 3021 and a second vertical plate 3022 connected together. The second horizontal plate 3021 is detachably connected to the bottom plate of the vehicle longitudinal beam 4 via a third connector 7, and the second vertical plate 3022 is detachably connected to the side plate of the vehicle longitudinal beam 4 via a fourth connector 8.

[0085] Meanwhile, the rear of the second horizontal plate 3021 is provided with a downwardly extending first extension plate 3023, which is connected to the first horizontal plate 3012 by a first connector 5. At the same time, the rear of the second vertical plate 3022 is provided with a second extension plate 3024 extending outward and rearward, which is connected to the first inclined plate 3013 in a preset direction by a second connector 6.

[0086] Here, the second mounting component 302 includes a second horizontal plate 3021 and a second vertical plate 3022, which facilitates detachable connection with the vehicle longitudinal beam 4 and makes assembly, disassembly and maintenance convenient. The first extension plate 3023 and the second extension plate 3024 can be easily connected with the first horizontal plate 3012 and the first inclined plate 3013, and are conducive to better absorption and decomposition of impact force.

[0087] In terms of specific structure, the second horizontal plate 3021 of this embodiment is provided with a third connecting hole 30211, and the second vertical plate 3022 is provided with a fourth connecting hole 30221. By having the third connecting member 7 pass through the third connecting hole 30211 and the fourth mounting hole 4013 on the bottom plate of the second mounting member 302 in sequence, and the fourth connecting member 8 passes through the fourth connecting hole 30221 and the side plate of the second mounting member 302 in sequence, the second mounting member 302 is connected to the vehicle longitudinal beam 4.

[0088] It should be noted here that the number of the third connecting holes 30211 can be set to two along the left and right direction of the vehicle, so as to match the fourth mounting hole 4013 on the lower plate 401 of the vehicle longitudinal beam, so as to ensure the stable connection between the second mounting part 302 and the vehicle longitudinal beam 4.

[0089] Of course, besides setting the number of the third connecting hole 30211 and the fourth mounting hole 4013 to two, the design and adjustment can also be made according to the specific connection requirements between the second mounting component 302 and the vehicle longitudinal beam 4, as long as the purpose of a stable connection between the second mounting component 302 and the vehicle longitudinal beam 4 can be met. Furthermore, in this embodiment, the third connecting hole 30211 and the fourth connecting hole 4013, in addition to being set to two... Figure 3 and Figure 4 In addition to the circle shown, the design can be adjusted according to actual needs. For example, it can also be set as a triangle, square or pentagon, as long as the stable connection between the second mounting part 302 and the vehicle longitudinal beam 4 is met.

[0090] Furthermore, in this embodiment, the first extension plate 3023 is provided with a first corresponding hole 30231. The first horizontal plate 3012 and the first extension plate 3023 are connected by the first connecting member 5, which passes through the lower first connecting hole 30121 and the first corresponding hole 30231 in sequence. At the same time, the second extension plate 3024 is bent relative to the second vertical plate 3022 to facilitate connection with the first inclined plate 3013. The second extension plate 3024 is provided with a second corresponding hole 30241. The first inclined plate 3013 can be connected to the second extension plate 3024 by the second connecting member 6, which passes through the second connecting hole 30132 and the second corresponding hole 30241 in sequence, so as to complete the connection between the first mounting member 301 and the second mounting member 302.

[0091] In the specific structure, the number of the second connecting holes 30132 in this embodiment can be set to two, which are arranged at intervals along the height direction. When the first mounting member 301 and the second mounting member 302 are connected, the first inclined plate 3013 and the second extension plate 3024 need to be connected by abutting. Therefore, the number of the second corresponding holes 30241 should match the number of the second connecting holes 30132. That is, the number of the second corresponding holes 30241 is set to two, which can realize a stable connection between the first inclined plate 3013 and the second extension plate 3024.

[0092] In this embodiment, in addition to setting the number of the second connecting hole 30132 and the second corresponding hole 30241 to two, the number of the second connecting hole 30132 and the second corresponding hole 30241 can also be designed and adjusted according to the actual connection requirements between the first inclined plate 3013 and the second extension plate 3024, so as to achieve the purpose of stable connection between the first inclined plate 3013 and the second extension plate 3024.

[0093] Furthermore, in this example, the number of first corresponding holes 30231 can be set to two with a spacing of two along the left and right direction of the vehicle, so that the first corresponding holes 30231 can be adapted to the lower first connecting hole 30121, thereby further improving the connection stability between the first mounting member 301 and the second mounting member 302. Here, the number of the first corresponding holes 30231 and the lower first connecting hole 30121 can be designed and adjusted according to the actual connection requirements between the first mounting member 301 and the second mounting member 302, as long as the connection stability between the first mounting member 301 and the second mounting member 302 is met.

[0094] Reference Figure 4As shown, a circular hole 4041 is also provided on the front end plate 404, which can play a certain role in weight reduction, thereby improving the lightweight design of the device. Here, the number of circular holes 4041 can be set to two. Of course, in addition to setting the number of circular holes 4041 to two, the number of circular holes 4041 can also be designed and adjusted according to the actual weight reduction requirements of the front end plate 404, as long as it can meet the weight reduction of the device and improve the lightweight design.

[0095] Furthermore, multiple reinforcing ribs 4018 are provided on both the inner and outer sides of the vehicle longitudinal beam lower plate 401. This ensures the structural strength of the vehicle longitudinal beam 4, preventing damage and thus reducing vehicle maintenance costs. Specifically, the reinforcing ribs 4018 are recessed structures within the vehicle longitudinal beam lower plate 401. Of course, besides the aforementioned structural form, other common structural forms can also be used for the reinforcing ribs 4018, such as welding columns to the inner and outer sides of the vehicle longitudinal beam lower plate 401, as long as the structural strength of the vehicle longitudinal beam lower plate 401 is guaranteed.

[0096] It is worth mentioning that the lower plate 401 of the vehicle longitudinal beam in this embodiment is provided with a flange. By providing the flange, the connection between the vehicle longitudinal beam 4 and the vehicle is facilitated, making assembly more convenient and thus improving assembly efficiency.

[0097] In addition, refer to Figure 4 and Figure 5 As shown, in terms of specific structure, the bottom plate of the vehicle longitudinal beam 4 is provided with an upper reinforcing plate 402 and a lower reinforcing plate 403, and an eighth mounting hole 4017 and a seventh mounting hole 4016 for connecting the upper reinforcing plate 402 and the vehicle longitudinal beam lower plate 401 are provided. Simultaneously, a sixth mounting hole 4015 and a fifth mounting hole 4014 for connecting the lower reinforcing plate 403 and the vehicle longitudinal beam lower plate 401 are also provided. This arrangement facilitates the disassembly and assembly of the upper reinforcing plate 402 and the lower reinforcing plate 403, and facilitates maintenance and replacement.

[0098] During installation, the upper reinforcing plate 402 of this embodiment can be fixed to the upper side of the lower plate 401 of the vehicle longitudinal beam by fasteners passing through the eighth mounting hole 4017 and the seventh mounting hole 4016 respectively. At the same time, during assembly, the lower reinforcing plate 403 can also be fixed to the lower side of the lower plate 401 of the vehicle longitudinal beam by fasteners passing through the sixth mounting hole 4015 and the fifth mounting hole 4014 respectively, so as to improve the structural strength of the vehicle longitudinal beam 4 and prevent damage to the vehicle longitudinal beam 4.

[0099] In this embodiment, the number of the fifth mounting hole 4014 and the sixth mounting hole 4015 is set to one. Of course, in order to ensure a stable connection between the lower reinforcing plate 403 and the vehicle longitudinal beam 4, in addition to setting the number of the fifth mounting hole 4014 and the sixth mounting hole 4015 to one, the number of the fifth mounting hole 4014 and the sixth mounting hole 4015 can also be set to two or more, so as to achieve a stable connection between the lower reinforcing plate 403 and the vehicle longitudinal beam 4.

[0100] In addition, in this embodiment, the fifth mounting hole 4014 and the sixth mounting hole 4015 can be set as a circle, or they can be set as a triangle, a square or a pentagon, etc., according to actual needs, as long as they can ensure the stable connection between the lower reinforcing plate 403 and the vehicle longitudinal beam 4.

[0101] Furthermore, continue to refer to Figure 4 and Figure 5 As shown, the lower reinforcing plate 403 of this embodiment has a second mounting hole 4031 and a third mounting hole 4032. In specific implementation, the fourth connecting member 8 is sequentially passed through the fourth connecting hole 30221, the second mounting hole 4031, the side plate of the vehicle longitudinal beam 4 and the upper reinforcing plate 402. At the same time, the fifth connecting member 9 is sequentially passed through the third mounting hole 4032, the side plate of the vehicle longitudinal beam 4 and the upper reinforcing plate 402, so as to achieve the purpose of connecting the lower reinforcing plate 403 and the vehicle longitudinal beam 4.

[0102] In this embodiment, the number of fourth connecting holes 30221 can be set to two arranged along the longitudinal direction of the vehicle. At this time, the number of second mounting holes 4031 is also set to two to match the fourth connecting holes 30221. Of course, besides setting the number of fourth connecting holes 30221 and second mounting holes 4031 to two, the specific number of fourth connecting holes 30221 and second mounting holes 4031 can also be designed and adjusted according to the connection requirements between the second longitudinal plate 3022 and the lower reinforcing plate.

[0103] It should be noted that the upper reinforcing plate 402 in this embodiment has holes that are compatible with the second mounting hole 4031 and the third mounting hole 4032 on the lower reinforcing plate 403. It can also be specifically set to two holes. Of course, in addition to setting the second mounting hole 4031 to two holes, the design and adjustment can also be made according to the number of the second mounting hole 4031 and the fourth connecting hole 30221.

[0104] Furthermore, in this embodiment, the lower reinforcing plate 403 and the front end plate 404 are connected by an end plate connector 405. Specifically, the end plate connector 405 has a fifth connecting hole 4051 for connecting the lower reinforcing plate 403, and the lower reinforcing plate 403 also has a corresponding hole position. During assembly, fasteners can be used to pass through the fifth connecting hole 4051 and its corresponding hole position to connect the end plate connector 405 and the lower reinforcing plate 403 together. Then, it is welded together as a whole with the front end plate 404 on the vehicle longitudinal beam 4. Of course, in addition to the above-mentioned welding, other common connection methods can also be used.

[0105] It is worth mentioning here that the fasteners in this embodiment can be fastening products well known to those skilled in the art, such as bolts and rivets, which have similar functions to the connecting parts in this embodiment, and will not be described in detail here. Meanwhile, related structural parts not mentioned in the rear towing device of this embodiment can refer to the structures of common rear towing devices in the prior art, such as the first underbody mounting hole 4011 and the second underbody mounting hole 4012 opened on the vehicle longitudinal beam 4 for connection with the vehicle.

[0106] In this embodiment, the first bottom guard plate mounting hole 4011 and the second bottom guard plate mounting hole 4012 are specifically provided on the lower plate 401 of the vehicle longitudinal beam. The first bottom guard plate mounting hole 4011 and the second bottom guard plate mounting hole 4012 are arranged at a distance from each other in the front and rear directions of the vehicle to facilitate the installation of existing bottom guard plates.

[0107] In the specific structure, when the vehicle longitudinal beam 4 is installed with the vehicle, in addition to the first bottom guard plate mounting hole 4011 and the second bottom guard plate mounting hole 4012, the bottom guard plate mounting holes can also be added according to the specific connection requirements between the vehicle longitudinal beam 4 and the vehicle, so as to achieve a stable connection between the vehicle longitudinal beam 4 and the vehicle.

[0108] Furthermore, it should be noted that the first bottom guard plate mounting hole 4011 and the second bottom guard plate mounting hole 4012 in this embodiment are circular in shape. Of course, in addition to making the first bottom guard plate mounting hole 4011 and the second bottom guard plate mounting hole 4012 circular, they can also be made square, triangular or pentagonal, etc., as long as they can meet the stable connection between the vehicle longitudinal beam 4 and the vehicle.

[0109] Considering the requirement for a detachable connection between the first mounting component 301 and the second mounting component 302, in this embodiment, as a preferred implementation, the first connecting component 5, the second connecting component 6, the third connecting component 7, and the fourth connecting component 8 are all bolt pairs. By making the first connecting component 5, the second connecting component 6, the third connecting component 7, and the fourth connecting component 8 all bolt pairs, existing standard parts can be used, thereby reducing production costs, ensuring reliable connections, and facilitating assembly, disassembly, and maintenance. Of course, in addition to using the aforementioned bolt pairs for connecting components, other common detachable connection methods can also be used.

[0110] It is worth noting that, as a preferred embodiment, a gap of not less than 5mm is provided between the first horizontal plate 3012 and the vehicle longitudinal beam 4 in this embodiment. It can be understood that providing a gap of not less than 5mm between the first horizontal plate 3012 and the vehicle longitudinal beam 4 prevents interference with the rear bumper and prevents damage to the rear bumper when the vehicle is subjected to impact force, thereby reducing vehicle maintenance costs and meeting collision performance requirements. Furthermore, after multiple tests, setting the gap between the first horizontal plate 3012 and the front end plate 404 on the vehicle longitudinal beam 4 to not less than 5mm satisfies the standard requirements.

[0111] Furthermore, in this embodiment, as a preferred implementation, the anti-collision beam 1 has an internal cavity that extends along the left-right direction of the vehicle. This internal cavity design reduces the weight of the anti-collision beam 1, gives it better structural strength, and allows it to transmit impact forces to the left and right sides of the vehicle.

[0112] It is worth mentioning that, in this embodiment, in addition to having an internal cavity, the anti-collision beam 1 can also be made solid. In specific implementation, suitable materials can be selected to improve the structural strength without excessively increasing the weight of the anti-collision beam 1. Furthermore, the anti-collision beam 1 is cylindrical with a circular cross-section. Of course, in addition to being cylindrical, the anti-collision beam 1 can also be square or other common shapes, as long as the impact force can be transmitted well.

[0113] In addition, to improve the ease of installation of the trailer hitch 2, in this embodiment, as a preferred implementation, refer to... Figure 1 and Figure 7As shown, two mounting plates 101 are installed on the anti-collision beam 1, spaced apart in the left-right direction of the vehicle. Each mounting plate 101 is equipped with a clamping member 102, both of which are elastically deformable, allowing the tow hook 2 to enter between them and be clamped in place. This arrangement of mounting plates 101 and clamping members 102 on the anti-collision beam 1 allows the tow hook 2 to be pre-fixed during assembly, improving the ease of installation and saving assembly time and costs.

[0114] In specific implementation, the mounting plates 101 are connected to both sides of the trailer hook 2 by welding or other common connection methods. Each mounting plate 101 has a mounting groove 1011 that is adapted to the outer wall of the anti-collision beam 1 to facilitate welding between the trailer hook 2 and the anti-collision beam 1. Furthermore, each mounting plate 101 has a pre-drilled hole 1021. The clamping member 102 is placed in each hole 1021. At this time, the clamping member 102 is in the shape of a ring. The inner ring of the hole 1021 is adapted to the mounting plate 101, while the outer ring of the hole 1021 is bent away from the mounting plate 101. By making the outer ring of the hole 1021 close to the trailer hook 2, the purpose of pre-fixing the trailer hook 2 is achieved.

[0115] Furthermore, in this embodiment, the trailer hook 2 can also be a trailer ball, trailer bolt, or trailer connector, etc., as long as it provides a sturdy connection point to ensure that the towed vehicle can safely follow the towing vehicle. To ensure that the trailer hook 2 has sufficient strength and durability during towing, it is typically made of a sturdy metal material, such as steel or cast iron. In this embodiment, the trailer hook 2 is installed on the anti-collision beam 1 of the towing vehicle, and after ensuring that its position and angle are suitable for connecting to the towed vehicle, the towed vehicle can be towed.

[0116] In this embodiment, the rear towing device, as described above, involves placing the trailer hook 2 in the mounting groove 1011 for welding, and welding the trailer hook 2 and the anti-collision beam 1 together to the first longitudinal plates 3011 on both sides. Simultaneously, during assembly, a first reinforcing plate 3014 and a second reinforcing plate 3015 are welded between each first longitudinal plate 3011 and each first transverse plate 3012, thereby forming the first mounting component 301.

[0117] Next, the first mounting member 301 is connected to the vehicle longitudinal beam 4 by fasteners sequentially passing through the first mounting hole 4042 and the first connecting hole 30121. At this time, the second mounting member 302 is connected to the vehicle longitudinal beam 4 by fasteners sequentially passing through the fourth connecting hole 30221, the second mounting hole 4031 and the side plate of the vehicle longitudinal beam 4, and by the fifth connecting member 9 sequentially passing through the third mounting hole 4032 and the side plate of the vehicle longitudinal beam 4.

[0118] Furthermore, in this embodiment, the first mounting member 301 and the second mounting member 302 are connected by having the second connecting member 6 sequentially pass through the second connecting hole 30132 and the second corresponding hole 30241, and the first connecting member sequentially pass through the first connecting hole 30121 and the first corresponding hole 30231. This completes the overall assembly of the device. When a vehicle is impacted, the impact force can be redirected multiple times through the anti-collision beam 1, the first mounting member 301, and the second mounting member 302 to disperse the impact force.

[0119] In this embodiment, when the rear towing device is in use, the impact force is first transmitted to the mounting plate 101 by the tow hook 2. With the mounting plate 101 arranged vertically, the force is transmitted to the anti-collision beam 1 along the height direction of the mounting plate 101. During the transmission process, the force is gradually decomposed and absorbed. After the anti-collision beam 1 bears the impact force transmitted from the mounting plate 101, it is transmitted to the first longitudinal plates 3011 located on both sides of the anti-collision beam 1 along the left and right directions of the anti-collision beam 1, further decomposing and absorbing the impact force.

[0120] Secondly, after the first longitudinal plate 3011 receives the impact force from the anti-collision beam 1, it is first transmitted to the first reinforcing plate 3014 and the second reinforcing plate 3015. Since the first reinforcing plate 3014 has a slotted hole 30141, a portion of the impact force is decomposed and absorbed through the slotted hole 30141 when the first reinforcing plate 3014 receives the impact force. At this time, the impact force is transmitted to the first transverse plate 3012 through the first reinforcing plate 3014 and the second reinforcing plate 3015 to further decompose and absorb the impact force.

[0121] Furthermore, after the impact force is transmitted to the first horizontal plate 3012, it will be transmitted from the first horizontal plate 3012 to the front plate 404 along the front-rear direction of the vehicle through the connection between the first horizontal plate 3012 and the front end plate 404, and then to the vehicle longitudinal beam 4. At the same time, the lower plate 401 of the vehicle longitudinal beam is provided with an upper reinforcing plate 402 and a lower reinforcing plate 403, which further strengthens the structural strength of the vehicle longitudinal beam 4. At this time, the impact force is decomposed and absorbed multiple times, and due to the presence of the upper reinforcing plate 402 and the lower reinforcing plate 403, it will not cause damage to the vehicle longitudinal beam 4, thereby helping to save vehicle maintenance costs.

[0122] In summary, the rear towing device of this embodiment adopts the above design. By including four directions in the connection direction between the components, the overall structural strength of the device is improved. It is connected to the first mounting component 301 through the anti-collision beam 1, and the first mounting component 301 is connected to the second mounting component 302. Both the first mounting component 301 and the second mounting component 302 are connected to the vehicle longitudinal beam 4, which can help improve the NVH performance and handling stability of the whole vehicle. When the vehicle is subjected to impact force, the anti-collision beam 1 and the mounting component 3 can steer the impact force multiple times. Therefore, the impact force can be better decomposed and absorbed, thereby effectively preventing damage to the vehicle longitudinal beam 4 and thus helping to save vehicle maintenance costs.

[0123] Example 2

[0124] This embodiment relates to a vehicle equipped with the rear towing device described in Embodiment 1. In this embodiment, the rear towing device is mounted to the vehicle chassis via the vehicle longitudinal beam 4. By incorporating the rear towing device as described in Embodiment 1, the problem of uneven force distribution caused by installing the rear towing device only in the Z-direction can be solved, improving the overall vehicle NVH performance and handling stability. This, in turn, improves the dispersal and absorption of impact forces, effectively preventing damage to the vehicle longitudinal beam 4, and thus helping to save on vehicle maintenance costs.

[0125] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rear dragging device, characterized in that: Includes a crash beam (1), a trailer hitch (2), and mounting components (3); The trailer hitch (2) is mounted on the anti-collision beam (3); The anti-collision beam (2) is provided with the mounting components (3) at both ends, and each mounting component (3) includes a first mounting part (301) and a second mounting part (302); The first mounting component (301) is connected to the anti-collision beam (1) in the left-right direction of the vehicle; the first mounting component (301) and the second mounting component (302) are connected in the front-rear direction and a preset direction of the vehicle; the second mounting component (302) is used to connect to the vehicle longitudinal beam (4), and the second mounting component (302) is connected to the vehicle longitudinal beam (4) in the left-right direction and the height direction of the vehicle, and the preset direction is different from the left-right direction, the front-rear direction, and the height direction of the vehicle.

2. The rear dragging device according to claim 1, characterized in that: The first mounting component (301) includes a first longitudinal plate (3011), a first transverse plate (3012), and a first inclined plate (3013). The first longitudinal plate (3011), the first transverse plate (3012), and the first inclined plate (3013) are bent and connected in sequence. The first longitudinal plate (3011) and the first inclined plate (3013) are located on the same side of the first transverse plate (3012). The first longitudinal plate (3011) is welded to the anti-collision beam (1) in the left-right direction of the vehicle; The first horizontal plate (3012) and the vehicle longitudinal beam (4) are detachably connected in the front-rear direction of the vehicle via a first connecting member (5); The first inclined plate (3013) and the second mounting member (6) are detachably connected in the preset direction via the second connector (6).

3. The rear dragging device according to claim 2, characterized in that: The first mounting component (5) further includes a first reinforcing plate (3014) and a second reinforcing plate (3015), wherein the first reinforcing plate (3014) and the second reinforcing plate (3015) are arranged at a distance in the height direction of the vehicle; The two sides of the first reinforcing plate (3014) are respectively connected to the first longitudinal plate (3011) and the first transverse plate (3012); The second reinforcing plate (3015) is connected to the first longitudinal plate (3011), the first transverse plate (3012), and the first inclined plate (3013) on three sides respectively.

4. The rear dragging device according to claim 3, characterized in that: The upper part of the first inclined plate (3013) is provided with a clearance notch (30131) for avoiding the rear enclosure, and the first reinforcing plate (3014) is provided corresponding to the clearance notch (30131); The first reinforcing plate (3014) is provided with a strip hole (30141), and the length direction of the strip hole (30141) is provided with an angle between the first horizontal plate (3012) and the first vertical plate (3011).

5. The rear dragging device according to claim 2, characterized in that: The second mounting component (302) includes a second horizontal plate (3021) and a second vertical plate (3022) connected together. The second horizontal plate (3022) is detachably connected to the bottom plate of the vehicle longitudinal beam (4) via a third connector (7). The second vertical plate (3022) is detachably connected to the side plate of the vehicle longitudinal beam (4) via a fourth connector (8). The rear part of the second horizontal plate (3022) is provided with a downwardly extending first extension plate (3023), and the first extension plate (3023) is connected to the first horizontal plate (3012) through the first connector (5); The rear part of the second longitudinal plate (3022) is provided with a second extension plate (3024) extending outward and rearward. The second extension plate (3024) is connected to the first inclined plate (3013) in the preset direction by the second connector (6).

6. The rear dragging device according to claim 5, characterized in that: The first connector (5), the second connector (6), the third connector (7), and the fourth connector (8) are all bolt pairs.

7. The rear dragging device according to claim 2, characterized in that: A gap of not less than 5mm is provided between the first horizontal plate (3012) and the vehicle longitudinal beam (4).

8. The rear dragging device according to claim 1, characterized in that: The anti-collision beam (1) has a cavity inside, which extends along the left and right direction of the vehicle.

9. The rear dragging device according to any one of claims 1-8, characterized in that: Two mounting plates (101) are installed on the anti-collision beam, and the two mounting plates (101) are arranged at a distance from each other in the left and right directions of the vehicle; Each of the mounting plates (101) is provided with a clamping member (102), and both clamping members (102) are elastically deformable. The trailer hook (2) can enter between the two clamping members (102) and be clamped by the two clamping members (102).

10. A vehicle, characterized in that: The vehicle is equipped with a rear towing device as described in any one of claims 1-9.

Images