Vehicle body tail structure and vehicle

Abstract

The utility model relates to the technical field of automobile manufacturing, and particularly provides an automobile body tail structure and an automobile. The vehicle body tail structure comprises a rear bumper, a tail door kick sensing device arranged on the inner side of the rear bumper, a mounting cross beam transversely arranged in front of the rear bumper, and a tow hook assembly hung on the mounting cross beam. The tow hook assembly and the rear bumper are arranged at an interval, and the tail door kick sensing device is located below the rear portion of the tow hook assembly. According to the vehicle body tail structure disclosed by the utility model, the mutual interference between the tow hook assembly and the tail door kick sensing device can be avoided, and the interference influence of the driving action of the tow hook assembly on the tail door kick sensing device can be effectively reduced; therefore, a feasible scheme that the trailer hook assembly and the tail door kick sensing device are simultaneously arranged at the tail part of the vehicle body is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, and in particular to a vehicle body rear structure. In addition, the utility model also relates to a vehicle. Background Art

[0002] As people's requirements for car towing capacity increase, many vehicles are equipped with a car trailer hook at the rear. The trailer hook is generally fixed on the inside of the rear bumper and is swung out from the bottom of the rear bumper when in use. It is used to tow a trailer caravan.

[0003] In addition, with the improvement of the intelligence level of automobiles, the automatic opening control of automobile tailgates has also become one of people's important needs. Usually, people set up induction switches and other devices on the rear bumper to detect people's opening and operating actions of the tailgate. When people's corresponding actions are detected, the tailgate can be opened automatically. For example, the opening of the tailgate can be controlled by kicking under the rear bumper.

[0004] However, when a vehicle needs to be equipped with both a car trailer hook and a tailgate kick sensor, since both configurations need to be set at the rear bumper, position conflicts and mutual interference are likely to occur during layout, making the layout more difficult; therefore, the prior art lacks a feasible solution for simultaneously arranging a car trailer hook and a tailgate kick sensor. Utility Model Content

[0005] In view of this, the utility model aims to propose a vehicle body rear structure to provide a feasible solution for simultaneously arranging a trailer hook assembly and a tailgate kick sensing device at the rear of the vehicle body.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A vehicle body rear structure, comprising a rear bumper, a tailgate kick sensor disposed inside the rear bumper, a mounting crossbeam disposed transversely in front of the rear bumper, and a trailer hook assembly hoisted on the mounting crossbeam;

[0008] The trailer hook assembly is spaced apart from the rear bumper, and the tailgate kick sensing device is located at the rear and lower part of the trailer hook assembly.

[0009] Furthermore, the mounting cross beam is extended over the entire width of the vehicle and constitutes a rear anti-collision beam of the vehicle.

[0010] Furthermore, a mounting bracket is fixedly provided at the lower middle portion of the mounting crossbeam; the trailer hook assembly includes a driving motor mounted on the mounting bracket, a rotating shaft driven to rotate by the driving motor, and a hook body arranged on the rotating shaft; the rotating shaft rotates within a set angle range to drive the hook body to swing between a stowed position and an open position.

[0011] Furthermore, the lower part of the rear bumper is tilted downward toward the interior of the vehicle, and the tailgate kick sensing device includes a first sensing antenna and a second sensing antenna spaced apart from each other; the first sensing antenna is located behind the drive motor, and the second sensing antenna is located below the drive motor, and the spacing between the first sensing antenna and the second sensing antenna and the drive motor is greater than 30 mm.

[0012] Furthermore, the distance between the hook body at the open position and the bottom edge of the rear bumper is between 8 mm and 14 mm.

[0013] Furthermore, the distance between the hook body at the open position and the second sensing antenna is greater than 20 mm; the distance between the second sensing antenna and the driving motor is between 30 mm and 50 mm.

[0014] Furthermore, the drive motor is arranged in the middle of the rotating shaft, the head of the rotating shaft used to connect the hook body is located on the side of the driving motor facing the front of the vehicle, and the tail of the rotating shaft is located on the side of the driving motor facing the rear of the vehicle; the distance between the first sensing antenna and the tail of the rotating shaft is between 60mm and 100mm.

[0015] Furthermore, the gaps between the first sensing antenna and the second sensing antenna and the inner wall of the rear bumper are both greater than 5 mm.

[0016] Furthermore, the distance between the first sensing antenna and the second sensing antenna is between 120 mm and 150 mm.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] The rear structure of the vehicle body of the utility model is provided with an installation crossbeam in front of the rear bumper for hoisting the trailer hook assembly; and in the front-rear direction of the vehicle, the trailer hook assembly and the rear bumper are spaced apart, and a tailgate kick sensing device is provided on the inner wall of the rear bumper by utilizing the spaced apart space, and a certain spacing distance is made between the tailgate kick sensing device and the trailer hook assembly, which not only ensures that the trailer hook assembly and the tailgate kick sensing device do not interfere with each other, but also effectively reduces the interference effect of the driving action of the trailer hook assembly on the tailgate kick sensing device, thereby providing a feasible solution for simultaneously arranging the trailer hook assembly and the tailgate kick sensing device at the rear of the vehicle body.

[0019] In addition, the mounting crossbeam used to install the trailer hook assembly is also used as the vehicle's rear anti-collision beam, which not only makes room for the installation of the tailgate kick sensor device, but also eliminates the need to add a new mounting beam structure. The mounting crossbeam can be reliably installed with the help of the vehicle's original rear anti-collision beam mounting structure without reducing the vehicle's rear collision safety performance.

[0020] In addition, the tailgate kick sensing device uses two sensing antennas that are staggered in the upper and lower positions. It can not only more accurately detect the user's kicking action to obtain control instructions for opening and closing the tailgate, but also effectively avoid the trailer hook assembly and its hook body that needs to swing back and forth.

[0021] Another object of the present invention is to provide a vehicle, the rear of which adopts the vehicle body rear structure of the present invention. The vehicle of the present invention has the technical advantages possessed by the above vehicle body rear structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which constitute part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention. The directional terms such as front and back, top and bottom involved therein are only used to indicate relative positional relationships and do not constitute improper limitations on the present invention. In the accompanying drawings:

[0023] Figure 1 It is an overall schematic diagram of the vehicle body rear structure according to an embodiment of the utility model from the perspective of the rear of the vehicle;

[0024] Figure 2 for Figure 1 The cross-section of the part indicated by AA in the middle;

[0025] Figure 3 for Figure 2 The shown schematic diagram is a state diagram of the vehicle body rear structure when the hook body is in the retracted position.

[0026] Description of reference numerals:

[0027] 1. Rear bumper;

[0028] 2. trailer hook assembly; 20. hook body; 21. rotating shaft; 22. driving motor;

[0029] 3. Install the crossbeam; 30. Install the bracket;

[0030] 4. Tailgate kick sensing device; 41. First sensing antenna; 42. Second sensing antenna. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0032] In the description of the present invention, it should be stated that if there are terms indicating directions or positional relationships such as "up, down, left, right, front, back, inside, outside", etc., they are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed or operate in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0033] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installed", "connected", "connection", and "connector" should be understood in a broad sense. For example, the connection 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, an indirect connection through an intermediate medium, or a connection between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific circumstances. The limiting terms such as "first, second, A, B, C, D" that appear in the description of the present utility model are only used to distinguish similar features of different positions, attributes or uses, so as to achieve the purpose of avoiding ambiguity and confusion in the description, and cannot be understood as indicating or implying relative importance.

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0035] Embodiment 1

[0036] This embodiment relates to a vehicle body rear structure, providing a feasible solution for simultaneously arranging a trailer hook assembly 2 and a tailgate kick sensor 4 at the rear of the vehicle body; an exemplary structure thereof is as follows Figure 1 , Figure 2 and Figure 3 shown.

[0037] In general, the rear structure of the vehicle body includes a rear bumper 1, a tailgate kick sensor 4 disposed inside the rear bumper 1, a mounting crossbeam 3 disposed transversely in front of the rear bumper 1, and a trailer hook assembly 2 hoisted on the mounting crossbeam 3. The trailer hook assembly 2 is spaced apart from the rear bumper 1, and the tailgate kick sensor 4 is located at the rear and lower part of the trailer hook assembly 2.

[0038] It should be pointed out that, based on the above-mentioned overall design concept, the technical solution of the utility model can adopt a variety of different specific implementation structures, forms or configuration sequences. For example, the above-mentioned tailgate kick sensing device 4 can adopt an infrared sensing element or a sensing antenna, and one or more can be set, and the specific setting sequence, device mode, etc. can also be flexibly adjusted. For the parts required for the implementation of the overall solution but not involved in the above-mentioned overall setting, reasonable and flexible designs can be made with reference to the mature setting means in the field, the actual situation during implementation, etc. The specific implementation scheme described below in this embodiment is only a better one of the many schemes that can be formed by the above-mentioned various combinations and their changes. In actual implementation, those skilled in the art can make flexible adjustments and improvements based on the actual situation. Obviously, the many schemes that can be formed by the above-mentioned various specific forms of combination and its changes, as well as the specific implementation scheme of this embodiment, are all within the protection scope of the utility model.

[0039] Specifically, in this embodiment, the mounting crossbeam 3 is extended over the entire width of the vehicle and constitutes the rear anti-collision beam of the vehicle; it can also be considered that the rear anti-collision beam of the vehicle is used as the mounting crossbeam 3 of this embodiment to hoist the trailer hook assembly 2. Therefore, the mounting crossbeam 3 can be installed at the position on the frame for installing the rear anti-collision beam. The mounting crossbeam 3 used for installing the trailer hook assembly 2 is also used as the rear anti-collision beam of the vehicle, which not only makes room for the installation of the tailgate kick sensor 4, but also does not need to add a new beam structure. The mounting crossbeam 3 can be reliably installed with the help of the original mounting structure of the rear anti-collision beam of the vehicle, and the rear collision safety performance of the vehicle will not be reduced.

[0040] Furthermore, preferably, Figure 2 As shown, a mounting bracket 30 is fixedly provided at the lower middle part of the mounting crossbeam 3 of this embodiment; the trailer hook assembly 2 is mounted on the mounting bracket 30. The trailer hook assembly 2 of this embodiment includes a driving motor 22 mounted on the mounting bracket 30, and a rotating shaft 21 mounted on the driving motor 22, and the rotating shaft 21 can rotate under the driving of the driving motor 22; at the same time, the trailer hook assembly 2 also includes a hook body 20 arranged on the rotating shaft 21. Among them, driven by the driving motor 22, the rotating shaft 21 can rotate within a set angle range to drive the hook body 20 to swing between the stowed position and the open position.

[0041] By fixing the mounting bracket 30 below the middle of the mounting crossbeam 3, the mounting height position of the trailer hook assembly 2 can be flexibly adjusted, providing good conditions for the installation of the trailer hook assembly 2. The trailer hook assembly 2 uses a drive motor 22 to drive the rotating shaft 21 to drive the hook body 20 to swing; by reasonably setting the axis inclination angle and posture of the rotating shaft 21, the hook body 20 can be driven to swing flexibly between the stowed position and the open position, so as to be swung into the inside of the rear bumper 1 to be hidden, or swung out to the rear of the rear bumper 1 for towing a motorhome, etc. When controlling the swing of the hook body 20, the rotation driving action of the drive motor 22 can be controlled by a button in the vehicle to open (unfold) or stow (swing back) the hook body 20, and the action of the trailer hook assembly 2 can also be controlled manually, remotely, or in other ways.

[0042] The specific size and overall structure of the rear bumper 1 can of course be flexibly adjusted and set according to the exterior design principles and needs of the vehicle model; the installation arrangement of the trailer hook assembly 2 and the tailgate kick sensor 4 can also be flexibly adjusted accordingly according to the different shapes and sizes of the rear bumper 1. In this embodiment, the lower part of the rear bumper 1 is tilted downward toward the interior of the vehicle, and the tailgate kick sensor 4 includes a first sensing antenna 41 and a second sensing antenna 42 spaced apart from each other. Among them, the first sensing antenna 41 is located behind the drive motor 22, and the second sensing antenna 42 is located below the drive motor 22, and the spacing between the first sensing antenna 41 and the second sensing antenna 42 and the drive motor 22 is greater than 30 mm.

[0043] The tailgate kick sensing device 4 uses two sensing antennas arranged in an upper and lower staggered manner, which can not only more accurately detect the user's kicking action to obtain the control command for opening and closing the tailgate, but also effectively avoid the trailer hook assembly 2 and the hook body 20 that needs to swing back and forth. At the same time, since the rotation of the drive motor 22 will cause certain electromagnetic interference to the sensing antenna, setting the spacing between the two sensing antennas and the drive motor 22 to be more than 30 mm can effectively reduce the signal interference effect of the drive motor 22 on the sensing antenna, thereby reducing the possibility of false signals from the sensing antenna, so as to prevent the tailgate of the car from being opened or closed by mistake as much as possible.

[0044] The specific setting positions of the above two induction switches and the spacing requirements between them and the surrounding components can be set within a reasonable range. In this embodiment, the spacing e between the hook body 20 in the open position and the bottom edge of the rear bumper 1 is between 8mm and 14mm. Setting the spacing e between the hook body 20 and the bottom edge (lower edge) of the rear bumper 1 within a reasonable range can not only avoid the movement interference between the hook body 20 and the rear bumper 1 during the reciprocating swing process, but also help optimize the trailer hook assembly 2 and the space required for the swing of the hook body 20, so that the overall layout of the rear structure of the vehicle body is more reasonable.

[0045] In addition, the spacing a between the hook body 20 in the open position and the second sensing antenna 42 is greater than 20 mm; the spacing b between the second sensing antenna 42 and the drive motor 22 is between 30 mm and 50 mm. In the first sensing antenna 41 and the second sensing antenna 42, based on the fact that the second sensing antenna 42 is located at the bottom, the spacing a between the second sensing antenna 42 and the hook body 20 in the open position, and the spacing b between the second sensing antenna 42 and the drive motor 22 are reasonably set to ensure that the swinging hook body 20 will not interfere with the second sensing antenna 42 when there are assembly errors, single-piece production errors, dragging deformation, etc. between the rear bumper 1 and the trailer hook assembly 2, and the signal of the drive motor 22 will not easily interfere with the second sensing antenna 42. In this embodiment, after the hook body 20 is unfolded, the minimum distance between it and the second sensing antenna 42, that is, the spacing a, is 23 mm; the spacing b between the second sensing antenna 42 and the drive motor 22 is 39 mm.

[0046] At the same time, Figure 2 As shown, the driving motor 22 of this embodiment is arranged in the middle of the rotating shaft 21, the head of the rotating shaft 21 for connecting the hook body 20 is located on the side of the driving motor 22 facing the front of the vehicle, and the tail of the rotating shaft 21 is located on the side of the driving motor 22 facing the rear of the vehicle; therefore, the first sensing antenna 41 is closer to the tail of the rotating shaft 21. In this case, preferably, the spacing c between the first sensing antenna 41 and the tail of the rotating shaft 21 is set between 60mm and 100mm. When the overall structure of the trailer hook assembly 2 and its layout posture adopt the above form, the tail of the rotating shaft 21 is closer to the first sensing antenna 41, and the spacing c between the tail of the rotating shaft 21 and the first sensing antenna 41 is set within a reasonable range, which is suitable for the overall layout space conditions of the tailgate kick sensing device 4 and the trailer hook assembly 2, and the anti-interference and anti-jamming conditions of the first sensing antenna 41 are better, which can ensure the effective and stable detection operation of the first sensing antenna 41.

[0047] like Figure 3As shown, in the case where the sensing antenna has a flexible thin rod structure, the sensing antenna will have certain low-frequency vibration and swing during the bumpy driving of the vehicle; the gaps between the first sensing antenna 41 and the second sensing antenna 42 of this embodiment and the inner wall of the rear bumper 1 are both greater than 5 mm. Setting the gap between the sensing antenna and the inner wall of the rear bumper 1 to be greater than 5 mm can effectively prevent the low-frequency vibrating and swinging sensing antenna from colliding with the rear bumper 1, thereby avoiding abnormal noise caused by the collision. In this embodiment, Figure 3 As shown, a first gap size t1 between the first sensing antenna 41 and the rear bumper 1 is 7 mm, and a second gap size t2 between the second sensing antenna 42 and the rear bumper 1 is 6 mm.

[0048] Based on the overall setting of the above-mentioned rear structure of the vehicle body, including the inclined bending setting posture of the lower part of the rear bumper 1, the distance between the first sensing antenna 41 and the second sensing antenna 42 should also be set within a reasonable range accordingly. In this embodiment, the distance d between the first sensing antenna 41 and the second sensing antenna 42 is between 120mm and 150mm. Setting the distance d between the first sensing antenna 41 and the second sensing antenna 42 between 120mm and 150mm can not only maximize the detection range of the user's tailgate kicking action, but also make the distance between the two sensing antennas in the vehicle up and down height direction and the front and rear length direction more reasonable, and also provide sufficient space between the two sensing antennas for the arrangement of the trailer hook assembly 2 and the swing of the hook body 20, so that the arrangement of the entire rear structure of the vehicle body is more reasonable.

[0049] To sum up, the rear structure of the vehicle body of the present embodiment is provided with a mounting crossbeam 3 in front of the rear bumper 1 for hoisting the trailer hook assembly 2; and in the front-to-rear direction of the vehicle, the trailer hook assembly 2 and the rear bumper 1 are spaced apart, and a tailgate kick sensing device 4 is provided on the inner wall of the rear bumper 1 by utilizing the spaced apart space, and a certain spacing distance is provided between the tailgate kick sensing device 4 and the trailer hook assembly 2, which not only ensures that there is no mutual interference between the trailer hook assembly 2 and the tailgate kick sensing device 4, but also effectively reduces the interference effect of the driving action of the trailer hook assembly 2 on the tailgate kick sensing device 4, thereby providing a feasible solution for simultaneously providing the trailer hook assembly 2 and the tailgate kick sensing device 4 at the rear of the vehicle body.

[0050] Embodiment 2

[0051] This embodiment relates to a vehicle, the rear part of which adopts the vehicle body rear part structure provided in the first embodiment.

[0052] By adopting the vehicle body rear structure of the utility model, the trailer hook assembly 2 and the tailgate kick sensor device 4 can be reasonably arranged at the rear of the vehicle at the same time, so that the vehicle can not only tow a small trailer caravan, etc., but also the tailgate of the vehicle has an automatic sensing opening function; the trailer hook assembly 2 and the tailgate kick sensor device 4 coexist, and there is no interference or interference between them, which is conducive to improving product competitiveness.

[0053] The above is only a preferred embodiment of the utility model. The detailed explanation of the configuration, the examples of the specific structural setting form, or the description of the assembly connection method, etc., are all for the purpose of full disclosure so that those skilled in the art can better implement the utility model, and are not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A vehicle body rear structure, characterized in that: It comprises a rear bumper (1), a tailgate kick sensor (4) arranged on the inner side of the rear bumper (1), a mounting crossbeam (3) arranged transversely in front of the rear bumper (1), and a trailer hook assembly (2) hoisted on the mounting crossbeam (3); The trailer hook assembly (2) is spaced apart from the rear bumper (1), and the tailgate kick sensing device (4) is located at the rear and lower part of the trailer hook assembly (2).

2. The vehicle body rear structure according to claim 1, characterized in that: The mounting cross beam (3) is arranged to extend over the entire width of the vehicle and constitutes a rear anti-collision beam of the vehicle.

3. The vehicle body rear structure according to claim 1, characterized in that: A mounting bracket (30) is fixedly provided at the lower middle portion of the mounting crossbeam (3); the trailer hook assembly (2) comprises a driving motor (22) mounted on the mounting bracket (30), a rotating shaft (21) driven to rotate by the driving motor (22), and a hook body (20) arranged on the rotating shaft (21); The rotating shaft (21) rotates within a set angle range to drive the hook body (20) to swing between a stowed position and an open position.

4. The vehicle body rear structure according to claim 3, characterized in that: The lower part of the rear bumper (1) is arranged to be tilted downward toward the interior of the vehicle, and the tailgate kick sensing device (4) comprises a first sensing antenna (41) and a second sensing antenna (42) which are arranged in an upper and lower spaced relationship; The first sensing antenna (41) is located behind the driving motor (22), the second sensing antenna (42) is located below the driving motor (22), and the spacing between the first sensing antenna (41) and the second sensing antenna (42) and the driving motor (22) is greater than 30 mm.

5. The vehicle body rear structure according to claim 4, characterized in that: The distance e between the hook body (20) located at the open position and the bottom edge of the rear bumper (1) is between 8 mm and 14 mm.

6. The vehicle body rear structure according to claim 4, characterized in that: The distance a between the hook body (20) and the second sensing antenna (42) at the open position is greater than 20 mm; and the distance b between the second sensing antenna (42) and the driving motor (22) is between 30 mm and 50 mm.

7. The vehicle body rear structure according to claim 4, characterized in that: The driving motor (22) is arranged in the middle of the rotating shaft (21); the head of the rotating shaft (21) used for connecting the hook body (20) is located on the side of the driving motor (22) facing the front of the vehicle, and the tail of the rotating shaft (21) is located on the side of the driving motor (22) facing the rear of the vehicle; The distance c between the first sensing antenna (41) and the tail of the rotating shaft (21) is between 60 mm and 100 mm.

8. The vehicle body rear structure according to any one of claims 4 to 7, characterized in that: The gap sizes between the first sensing antenna (41) and the second sensing antenna (42) and the inner wall of the rear bumper (1) are both greater than 5 mm.

9. The vehicle body rear structure according to any one of claims 4 to 7, characterized in that: The distance d between the first sensing antenna (41) and the second sensing antenna (42) is between 120 mm and 150 mm.

10. A vehicle, characterized in that: The rear part of the vehicle adopts the vehicle body rear part structure according to any one of claims 1 to 9.

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