WO2021249148A1 - 一种用于车辆的拖车装置及车辆 - Google Patents

一种用于车辆的拖车装置及车辆 Download PDF

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Publication number
WO2021249148A1
WO2021249148A1 PCT/CN2021/094888 CN2021094888W WO2021249148A1 WO 2021249148 A1 WO2021249148 A1 WO 2021249148A1 CN 2021094888 W CN2021094888 W CN 2021094888W WO 2021249148 A1 WO2021249148 A1 WO 2021249148A1
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WO
WIPO (PCT)
Prior art keywords
shaped
vehicle
rear floor
mounting hole
trailer device
Prior art date
Application number
PCT/CN2021/094888
Other languages
English (en)
French (fr)
Inventor
井小向
肯特
付涛
戴强
梁健
于泽
魏书浩
刘群
Original Assignee
浙江联控技术有限公司
浙江吉利控股集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 浙江联控技术有限公司, 浙江吉利控股集团有限公司 filed Critical 浙江联控技术有限公司
Priority to US18/001,168 priority Critical patent/US20230226865A1/en
Priority to KR1020227042416A priority patent/KR20230006646A/ko
Priority to JP2022574235A priority patent/JP7471464B2/ja
Priority to EP21823143.9A priority patent/EP4144546A4/en
Publication of WO2021249148A1 publication Critical patent/WO2021249148A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/48—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
    • B60D1/56—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting securing to the vehicle bumper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B62D25/209—Arrangements for the mounting of vehicle hitches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/18—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/01—Traction couplings or hitches characterised by their type
    • B60D1/04—Hook or hook-and-hasp couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/01—Traction couplings or hitches characterised by their type
    • B60D1/06—Ball-and-socket hitches, e.g. constructional details, auxiliary devices, their arrangement on the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
    • B60D1/243—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for protection in case of crash, collision, impact, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/48—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
    • B60D1/485—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting mounted by means of transversal members attached to the frame of a vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/48—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
    • B60D1/488—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting mounted directly to the chassis of the towing vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/48—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
    • B60D1/52—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting removably mounted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type

Definitions

  • the present invention relates to the technical field of vehicle parts, in particular to a trailer device for a vehicle and a vehicle.
  • the trailer device of the vehicle generally has its own crossbeam. Before installing it on the vehicle, the rear anti-collision beam and the energy-absorbing box of the original car need to be removed first, and then the crossbeam that comes with the trailer device is connected to the vehicle through fasteners. On the stringer.
  • the cross beam of the trailer device is connected to the longitudinal beam of the vehicle by a hard connection, which cannot play the role of collapse and energy absorption, and the impact force is directly transmitted to the vehicle body when subjected to a collision.
  • the rear anti-collision beam and energy-absorbing box of the original car have been removed, the protective effect of low-speed collisions is lost, and the low-speed collision safety performance of the vehicle is reduced.
  • An object of the present invention is to solve the technical problem that the trailer device in the prior art loses the protection function of low-speed collision and the overall weight causes difficulty in single installation.
  • a further object of the present invention is to increase the torsion resistance of the trailer device to withstand the torque in the width direction of the vehicle body when the vehicle turns and the road is bumpy.
  • the present invention provides a trailer device for a vehicle.
  • the vehicle includes two longitudinal beams extending in the longitudinal direction of the vehicle, and a rear collision avoidance device provided on one side of the two longitudinal beams and extending in the transverse direction of the vehicle.
  • the trailer device includes a front end part and a rear end part connected with the front end part;
  • the front end portion is arranged on the rear floor and the rear floor cross beam, so that the external force received by it is dispersed on the rear floor cross beam;
  • the rear end part includes a connecting seat and a tow hook connected to the connecting seat and extending to the outside of the vehicle.
  • the connecting seat is arranged on the rear anti-collision beam so that the rear end part The received external force is transmitted to the longitudinal beam through the rear anti-collision beam and the energy absorbing box.
  • the front end portion includes a U-shaped beam, and the U-shaped beam is disposed on the back of the rear floor.
  • the U-shaped beam has two oppositely disposed first and second ends, and the front end portion further includes two L-shaped brackets, and the two L-shaped brackets are both provided on the rear side.
  • One end of one of the L-shaped brackets is connected to the first end of the U-shaped beam, and the other end is connected to the rear floor cross beam;
  • One end of the other L-shaped bracket is connected with the second end of the U-shaped beam, and the other end is connected with the rear floor cross beam.
  • the first end of the U-shaped beam has at least one first mounting hole
  • the second end of the U-shaped beam has at least one second mounting hole
  • each of the L-shaped beams One end of the bracket has at least one third mounting hole
  • the trailer device further includes at least one first bolt and at least one second bolt, and the first bolt penetrates the first mounting hole of the first end and the third mounting hole of one of the L-shaped brackets , To connect the U-shaped beam and one of the L-shaped brackets together;
  • the second bolt penetrates the second mounting hole of the second end and the third mounting hole of the other L-shaped bracket to connect the U-shaped beam and the other L-shaped bracket together.
  • each L-shaped bracket has at least one fourth mounting hole
  • the trailer device further includes at least one third bolt and at least one fourth bolt
  • the third bolt penetrates one of the L-shaped brackets and the rear floor cross beam to connect one of the L-shaped brackets and the rear floor cross beam together;
  • the fourth bolt penetrates the other L-shaped bracket and the rear floor cross member to connect the other L-shaped bracket and the rear floor cross member together.
  • the rear floor cross beam is provided with a cross beam reinforcement plate, and the L-shaped bracket penetrates the cross beam reinforcement plate when connected to the rear floor cross beam.
  • the connecting seat is arranged on the back of the rear anti-collision beam.
  • the connecting seat and the U-shaped beam are detachably connected together.
  • the present invention also provides a vehicle including the aforementioned trailer device.
  • the front end portion of the trailer device is arranged on the rear floor and the rear floor beam of the vehicle, and the connecting seat of the rear end portion is arranged on the rear anti-collision beam
  • the original rear anti-collision beam and energy-absorbing box of the vehicle are retained.
  • the rear anti-collision beam and energy-absorbing box can still absorb collision energy through deformation.
  • the trailer device since the trailer device only has a front end portion and a rear end portion, compared with the conventional trailer device with its own beam, the overall weight is greatly reduced, and a single person installation operation can be realized.
  • one end of the U-shaped beam and the L-shaped bracket is connected to the rear floor, and the other end of the L-shaped bracket is connected to the rear floor beam together with the beam reinforcement plate.
  • the force of the trailer hook passes through the U-shaped beam.
  • the pulling force is evenly distributed to the rear floor cross beam to achieve the purpose of bearing the pulling force in the longitudinal direction of the car body.
  • the U-shaped beam is set in a U-shape, so that the connection points on the rear floor beam are separated by a certain distance in the width direction of the vehicle body, which enhances the torsion resistance of the trailer device, and can withstand the width direction of the vehicle body when the vehicle turns and the road is bumpy. Torque capacity.
  • the L-shaped bracket plays the role of stiffening ribs and flanges, and together with the beam stiffener, it can withstand the bending moment caused by road bumps when dragging.
  • the connecting seat is connected with the rear anti-collision beam, and the tensile force and vertical force received by the rear end are transmitted to the longitudinal beam through the rear anti-collision beam and the energy-absorbing box to meet the vertical support requirements.
  • the first mounting hole, the second mounting hole, the third mounting hole, and the fourth mounting hole are arranged in the manner of the embodiment of the present invention, which can further enhance the function of the U-shaped beam and the L-shaped bracket.
  • Figure 1 shows a front schematic structural view of a trailer device for a vehicle according to an embodiment of the present invention
  • Figure 2 shows a schematic structural view of the back of a trailer device for a vehicle according to an embodiment of the present invention
  • Figure 3 shows a schematic exploded view of a trailer device for a vehicle according to an embodiment of the present invention
  • Fig. 1 shows a front schematic structural view of a trailer device for a vehicle according to an embodiment of the present invention.
  • Fig. 2 shows a schematic structural view of the back of a trailer device for a vehicle according to an embodiment of the present invention.
  • Fig. 3 shows a schematic exploded view of a trailer device for a vehicle according to an embodiment of the present invention.
  • the "front” mentioned below refers to the side that the human eye can observe when the car is normally placed on the ground.
  • “Back” is the opposite side of "Front”.
  • the vehicle includes two longitudinal beams 1, two energy absorbing boxes respectively arranged at the ends of the two longitudinal beams 1, and a transverse beam connected to the longitudinal beam 1 through the energy absorbing boxes 2
  • a rear anti-collision beam 3 a rear floor 4 located between the two longitudinal beams 1, and a rear floor cross beam 5 are provided.
  • the trailer device includes a front end part 6 and a rear end part 7 connected to the front end part 6.
  • the front end portion 6 is provided on the rear floor 4 and the rear floor cross member 5 of the vehicle.
  • the rear end portion 7 includes a connecting seat 71 and a towing hook 72 connected to the connecting seat 71.
  • the connecting seat 71 is arranged on the rear anti-collision beam 3, and the towing hook 72 extends from the part connected to the connecting seat 71 to the outside of the vehicle. out.
  • the external force received by the front end portion 6 is dispersed on the rear floor cross beam 5, and the rear end portion 7 is transferred to the longitudinal beam 1 through the rear anti-collision beam 3 and the energy absorbing box 2 by the external force.
  • the front end portion 6 of the trailer device is arranged on the rear floor 4 and the rear floor cross member 5 of the vehicle, and the connecting seat 71 of the rear end portion 7 is arranged at all.
  • the rear anti-collision beam 3 retains the original rear anti-collision beam 3 and the energy-absorbing box 2 of the vehicle. In a low-speed collision, the rear anti-collision beam 3 and the energy-absorbing box 2 can still absorb collision energy through deformation.
  • the trailer device since the trailer device only has a front end portion 6 and a rear end portion 7, compared with the prior art solution of the trailer device with its own crossbeam, the overall weight is greatly reduced, and a single person installation operation can be realized.
  • the front end portion 6 includes a U-shaped beam 61 and two L-shaped brackets 62.
  • the U-shaped beam 61 is provided on the back of the rear floor 4.
  • the two L-shaped brackets 62 are both arranged on the front of the rear floor 4.
  • the U-shaped beam 61 has a first end 611 and a second end 612 opposite to each other.
  • One end of the L-shaped bracket 62 is connected to the first end 611 of the U-shaped beam 61, and the other end is connected to the rear floor cross beam 5.
  • One end of the other L-shaped bracket 62 is connected to the second end 612 of the U-shaped beam 61, and the other end is connected to the rear floor cross beam 5.
  • the connecting seat 71 of the rear end portion 7 is arranged on the back of the rear anti-collision beam 3, and the connecting seat 71 and the U-shaped beam 61 are detachably connected together.
  • the connecting seat 71 includes a connecting plate 711 and a fixing frame 712 connected to the connecting plate 711 by fasteners.
  • the connecting plate 711 is configured as a flat plate structure and is installed on the back of the rear anti-collision beam 3.
  • the fixing frame 712 is constructed in an L shape as a whole, and the number is two.
  • the two fixing frames 712 are respectively connected to two sides of the flat structure and located on both sides of the trailer hook 72.
  • the two fixing frames 712 are both connected with the U-shaped beam 61.
  • the first end 611 of the U-shaped beam 61 has two first mounting holes 613
  • the second end 612 of the U-shaped beam 61 has two second mounting holes 614.
  • two first mounting holes 613 are arranged along the length direction of the vehicle body at the first end 611 of the U-shaped beam 61
  • two second mounting holes 614 are arranged along the length direction of the vehicle body at the second end 612 of the U-shaped beam 61 arrangement.
  • Each L-shaped bracket 62 has two third mounting holes 615 at one end. The other end of each L-shaped bracket 62 has two fourth mounting holes 616.
  • the two third mounting holes 615 of one of the L-shaped brackets 62 are arranged along the length of the vehicle body and correspond to the two first mounting holes 613 so that one of the two first bolts 8 penetrates One of the first mounting holes 613 and the third mounting hole 615 corresponding to the first mounting hole 613, and the other first bolt 8 of the two first bolts 8 penetrates the other first mounting hole 613 and the third mounting hole 615.
  • the first mounting hole 613 corresponds to another third mounting hole 615 to connect the first end 611 of the U-shaped beam 61 and the L-shaped bracket 62 together.
  • the two third mounting holes 615 of the other L-shaped bracket 62 are arranged along the length of the vehicle body and correspond to the two second mounting holes 614, so that one of the two second bolts 9 penetrates One of the second mounting holes 614 and the third mounting hole 615 corresponding to the second mounting hole 614, and the other first bolt 8 of the two first bolts 8 penetrates the other second mounting hole 614 and
  • the second mounting hole 614 corresponds to another third mounting hole 615 to connect the second end 612 of the U-shaped beam 61 and the L-shaped bracket 62 together.
  • the two fourth mounting holes 616 of one of the L-shaped brackets 62 are arranged along the width direction of the vehicle body, and one of the third bolts 10 of the two third bolts 10 penetrates through one of the two fourth mounting holes 616.
  • the mounting hole 616 and the rear floor cross member 5, and the other third bolt 10 penetrates the other fourth mounting hole 616 of the L-shaped bracket 62 and the rear floor cross member 5, thereby connecting the L-shaped bracket 62 and the rear floor cross member 5 together .
  • the two fourth mounting holes 616 of the other L-shaped bracket 62 are arranged along the width direction of the vehicle body, and one of the two fourth bolts 11 penetrates through one of the two fourth mounting holes 616.
  • the rear floor cross beam 5 has a cross beam reinforcement plate (not shown in the figure), and the L-shaped bracket 62 penetrates the cross beam reinforcement plate when connected with the rear floor cross beam 5.
  • one end of the U-shaped beam 61 and the L-shaped bracket 62 is connected to the rear floor 4, and the other end of the L-shaped bracket 62 is connected to the rear floor cross beam 5 together with the beam reinforcement plate.
  • the pulling force of the tow hook 72 is evenly distributed to the rear floor cross member 5 through the U-shaped beam 61, so as to achieve the purpose of bearing the pulling force in the longitudinal direction of the vehicle body.
  • the U-shaped beam 61 is set in a U-shape, so that the connection points on the rear floor cross member 5 are separated by a certain distance in the width direction of the vehicle body, which enhances the torsion resistance of the trailer device, and can withstand the vehicle body when the vehicle turns and the road is bumpy.
  • the L-shaped bracket 62 functions as a reinforcing rib and a flange, and together with the cross beam reinforcement plate, it can withstand the bending moment caused by road bumps during dragging.
  • the connecting seat 71 is connected with the rear anti-collision beam 3, and the tensile force and vertical force received by the rear end are transmitted to the longitudinal beam 1 through the rear anti-collision beam 3 and the energy absorbing box 2 to meet the vertical requirements. Request to the loading.
  • the first mounting hole 613, the second mounting hole 614, the third mounting hole 615, and the fourth mounting hole 616 are provided in the manner of the embodiment of the present invention, thereby further enhancing the functions of the U-shaped beam 61 and the L-shaped bracket 62 .
  • the difference between the third embodiment and the second embodiment is that the number of the first mounting hole 613, the second mounting hole 614, the third mounting hole 615, and the fourth mounting hole 616 are all one, three or more.
  • the number of one bolt 8, the second bolt 9, the third bolt 10, and the fourth bolt 11 are all one, three or more, and the number can be set as required.
  • the present invention also provides a vehicle, which includes the trailer device in the foregoing embodiment.
  • the trailer device of the present invention reduces the weight of the body, improves the installation convenience, reduces the installation man-hours, and retains the low-speed collision performance of the entire vehicle on the premise that the towing ability can be satisfied.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

一种用于车辆的拖车装置及车辆，拖车装置包括前端部分（6）和与前端部分（6）连接的后端部分（7），前端部分（6）设置在后地板（4）和后地板横梁（5）上，以使其受到的外力分散在后地板横梁（5）上；后端部分（7）包括连接座（71）和与连接座（71）相连、且向车辆的外部伸出的拖车钩（72），连接座（71）设置在后防撞梁（3）上，以使后端部分（7）受到的外力通过后防撞梁（3）和吸能盒（2）传递到纵梁（1）上。该拖车装置保留了车辆原本的后防撞梁（3）和吸能盒（2），在低速碰撞时，后防撞梁（3）和吸能盒（2）依然能够通过变形来吸收碰撞能，并且整体重量极大减轻，可以实现单人安装操作。

Description

一种用于车辆的拖车装置及车辆 技术领域
本发明涉及车辆零部件技术领域，尤其涉及一种用于车辆的拖车装置及车辆。
背景技术
目前，车辆的拖车装置一般自带横梁，在安装在车辆上之前，需要首先拆除原车的后防撞梁和吸能盒，然后，将拖车装置自带的横梁通过紧固件连接在车辆的纵梁上。
这种结构由于带有横梁，整体重量重且体积较大，单人安装困难，通常需要借助辅具，且安装工时长。并且，该拖车装置的横梁与车辆的纵梁连接是硬连接，无法起到溃缩吸能的作用，遭受碰撞时撞击力直接传递到车身上。此外，由于拆除了原车的后防撞梁和吸能盒，失去低速碰撞的保护作用，降低了车辆低速碰撞安全性能。
发明内容
本发明的一个目的是要解决现有技术中的拖车装置失去了低速碰撞的保护作用以及整体重量重导致单人安装困难的技术问题。
本发明的一个进一步的目的是增加拖车装置的抗扭性能，以在车辆转弯以及路面颠簸起伏时承受车身宽度方向扭矩的能力。
特别地，本发明提供了一种用于车辆的拖车装置，所述车辆包括沿车辆纵向延伸的两个纵梁、设置在所述两个纵梁的一侧且沿车辆横向延伸的后防撞梁、以及设置在所述两个纵梁之间的后地板和后地板横梁，每个所述纵梁的靠近所述后防撞梁的端部与所述后防撞梁之间均通过吸能盒相连，其中，
所述拖车装置包括前端部分和与所述前端部分连接的后端部分；
所述前端部分设置在所述后地板和所述后地板横梁上，以使其受到的外力分散在所述后地板横梁上；
所述后端部分包括连接座和与所述连接座相连、且向所述车辆的外部伸出的拖车钩，所述连接座设置在所述后防撞梁上，以使所述后端部分受到的外力通过所述后防撞梁和吸能盒传递到所述纵梁上。
可选地，所述前端部分包括U型梁，所述U型梁设置在所述后地板的 背面。
可选地，所述U型梁具有两个相对设置的第一端部和第二端部，所述前端部分还包括两个L型支架，所述两个L型支架均设置在所述后地板的正面；
其中一个L型支架的一端与所述U型梁的所述第一端部相连，另一端与所述后地板横梁相连；
另一个L型支架的一端与所述U型梁的所述第二端部相连，另一端与所述后地板横梁相连。
可选地，所述U型梁的所述第一端部具有至少一个第一安装孔，所述U型梁的所述第二端部具有至少一个第二安装孔，每个所述L型支架的一端具有至少一个第三安装孔；
其中，所述拖车装置还包括至少一个第一螺栓和至少一个第二螺栓，所述第一螺栓贯穿所述第一端部的所述第一安装孔和其中一个L型支架的第三安装孔，以将所述U型梁和其中一个L型支架连接在一起；
所述第二螺栓贯穿所述第二端部的所述第二安装孔和另一个L型支架的第三安装孔，以将所述U型梁和另一个L型支架连接在一起。
可选地，每个所述L型支架的另一端具有至少一个第四安装孔，所述拖车装置还包括至少一个第三螺栓和至少一个第四螺栓；
所述第三螺栓贯穿其中一个L型支架和后地板横梁，以将其中一个L型支架和后地板横梁连接在一起；
所述第四螺栓贯穿另一个L型支架和后地板横梁，以将另一个L型支架和后地板横梁连接在一起。
可选地，所述后地板横梁内具有横梁加强板，所述L型支架与所述后地板横梁相连时贯穿所述横梁加强板。
可选地，所述连接座设置在所述后防撞梁的背面。
可选地，所述连接座与所述U型梁可拆卸地连接在一起。
特别地，本发明还提供了一种车辆，包括前述的拖车装置。
根据本发明实施例的方案，通过设计拖车装置的结构，并将拖车装置的前端部分设置在车辆的后地板和后地板横梁上，且将后端部分的连接座设置在所述后防撞梁上，从而保留了车辆原本的后防撞梁和吸能盒，在低速碰撞时，后防撞梁和吸能盒依然能够通过变形来吸收碰撞能。此外，由于该拖车装置仅具有前端部分和后端部分，与现有技术中拖车装置自带横梁的方案相 比，整体重量极大减轻，可以实现单人安装操作。
此外，U型梁与L型支架的一端连接在后地板上，L型支架的另一端与横梁加强板一起连接在后地板横梁上，在拖挂时，拖车钩的受力经过U型梁将拉力均匀分散到后地板横梁上，达到承受车身长度方向拉力的目的。
并且，该U型梁设置为U型，使得将后地板横梁上的连接点在车身宽度方向上分开一定距离，增强拖车装置的抗扭性能，可以在车辆转弯以及路面颠簸起伏时承受车身宽度方向扭矩的能力。L型支架起加强筋和翻边的作用，并且和横梁加强板一起来承受拖拽时因路面颠簸产生的弯矩。
在拖车装置的后端，连接座与后防撞梁连接，后端受到的拉力和垂向力通过后防撞梁和吸能盒传递到纵梁上，来满足垂向托载要求。该第一安装孔、第二安装孔、第三安装孔以及第四安装孔设置为本发明实施例的方式，由此可以进一步增强U型梁、L型支架的功能作用。
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：
图1示出了根据本发明一个实施例的用于车辆的拖车装置的正面示意性结构图；
图2示出了根据本发明一个实施例用于车辆的拖车装置的背面示意性结构图；
图3示出了根据本发明一个实施例用于车辆的拖车装置的示意性分解图；
图中：1-纵梁，2-吸能盒，3-后防撞梁，4-后地板，5-后地板横梁，6-前端部分，61-U型梁，611-第一端部，612-第二端部，613-第一安装孔，614-第二安装孔，615-第三安装孔，616-第四安装孔，62-L型支架，7-后端部分，71-连接座，711-连接板，712-固定架，72-拖车钩，8-第一螺栓，9-第二螺栓，10-第三螺栓，11-第四螺栓。
具体实施方式
图1示出了根据本发明一个实施例用于车辆的拖车装置的正面示意性结构图。图2示出了根据本发明一个实施例用于车辆的拖车装置的背面示意性结构图。图3示出了根据本发明一个实施例用于车辆的拖车装置的示意性分解图。以下所提及的“正面”是指，车正常放置在地面上时人眼能观察到的一面。“背面”是与“正面”相对的另一面。
实施例1：
如图1至图3所示，该车辆包括两根纵梁1、分别设置在两根纵梁1端部的两个吸能盒2、通过吸能盒2与纵梁1相连接的且横向设置的后防撞梁3、位于两根纵梁1之间的后地板4以及后地板横梁5。该拖车装置包括前端部分6和与前端部分6连接的后端部分7。该前端部分6设置在车辆的后地板4和后地板横梁5上。该后端部分7包括连接座71和与连接座71连接在一起的拖车钩72，连接座71设置在后防撞梁3上，拖车钩72从与连接座71连接的部位向车辆的外部伸出。其中，该前端部分6受到的外力分散在后地板横梁5上，该后端部分7受到外力通过后防撞梁3和吸能盒2传递到纵梁1上。
根据本发明实施例的方案，通过设计拖车装置的结构，并将拖车装置的前端部分6设置在车辆的后地板4和后地板横梁5上，且将后端部分7的连接座71设置在所述后防撞梁3上，从而保留了车辆原本的后防撞梁3和吸能盒2，在低速碰撞时，后防撞梁3和吸能盒2依然能够通过变形来吸收碰撞能。此外，由于该拖车装置仅具有前端部分6和后端部分7，与现有技术中拖车装置自带横梁的方案相比，整体重量极大减轻，可以实现单人安装操作。
实施例2：
在该实施例中，如图2和图3所示，该前端部分6包括U型梁61和两个L型支架62。该U型梁61设置在后地板4的背面。该两个L型支架62均设置在后地板4的正面。该U型梁61具有两个相对设置的第一端部611和第二端部612。其中一个L型支架62的一端与U型梁61的第一端部611相连，另一端与后地板横梁5相连。另一个L型支架62的一端与U型梁61的第二端部612相连，另一端与后地板横梁5相连。
该后端部分7的连接座71设置在后防撞梁3的背面，且连接座71与U型梁61可拆卸地连接在一起。该连接座71包括连接板711和与该连接板711 通过紧固件连接的固定架712。该连接板711构造为平板结构，其安装在后防撞梁3的背面。该固定架712整体上构造为L型，其数量为两个，两个固定架712分别连接在平板结构的两侧，且位于拖车钩72两侧。两个固定架712均与U型梁61连接。
该U型梁61的第一端部611具有两个第一安装孔613，该U型梁61的第二端部612具有两个第二安装孔614。其中，两个第一安装孔613在U型梁61的第一端部611沿着车身长度方向排列，两个第二安装孔614在U型梁61的第二端部612沿着车身长度方向排列。每个L型支架62的一端具有两个第三安装孔615。每个所述L型支架62的另一端具有两个第四安装孔616。
其中一个L型支架62的两个第三安装孔615沿着车身长度方向排列，且与两个第一安装孔613相对应，以使两个第一螺栓8中的其中一个第一螺栓8贯穿其中一个第一安装孔613和与该第一安装孔613相对应的第三安装孔615，且使两个第一螺栓8中的另一个第一螺栓8贯穿另一个第一安装孔613和与该第一安装孔613相对应的另一个第三安装孔615，从而将U型梁61的第一端部611和该L型支架62连接在一起。
另一个L型支架62的两个第三安装孔615沿着车身长度方向排列，且与两个第二安装孔614相对应，以使两个第二螺栓9中的其中一个第二螺栓9贯穿其中一个第二安装孔614和与该第二安装孔614相对应的第三安装孔615，且使两个第一螺栓8中的另一个第一螺栓8贯穿另一个第二安装孔614和与该第二安装孔614相对应的另一个第三安装孔615，从而将U型梁61的第二端部612和该L型支架62连接在一起。
其中一个L型支架62的两个第四安装孔616沿着车身宽度方向排列，两个第三螺栓10中的其中一个第三螺栓10贯穿该两个第四安装孔616中的其中一个第四安装孔616和后地板横梁5，另一个第三螺栓10贯穿该L型支架62的另一个第四安装孔616和后地板横梁5，从而将该L型支架62和后地板横梁5连接在一起。
另一个L型支架62的两个第四安装孔616沿着车身宽度方向排列，两个第四螺栓11中的其中一个第四螺栓11贯穿该两个第四安装孔616中的其中一个第四安装孔616和后地板横梁5，另一个第四螺栓11贯穿该L型支架62的另一个第四安装孔616和后地板横梁5，从而将该L型支架62和后 地板横梁5连接在一起。
后地板横梁5内具有横梁加强板(图中未示出)，L型支架62与后地板横梁5相连时贯穿横梁加强板。
根据本发明的实施例，U型梁61与L型支架62的一端连接在后地板4上，L型支架62的另一端与横梁加强板一起连接在后地板横梁5上，在拖挂时，拖车钩72的受力经过U型梁61将拉力均匀分散到后地板横梁5上，达到承受车身长度方向拉力的目的。
并且，该U型梁61设置为U型，使得将后地板横梁5上的连接点在车身宽度方向上分开一定距离，增强拖车装置的抗扭性能，可以在车辆转弯以及路面颠簸起伏时承受车身宽度方向扭矩的能力。L型支架62起加强筋和翻边的作用，并且和横梁加强板一起来承受拖拽时因路面颠簸产生的弯矩。
此外，在拖车装置的后端，连接座71与后防撞梁3连接，后端受到的拉力和垂向力通过后防撞梁3和吸能盒2传递到纵梁1上，来满足垂向托载要求。该第一安装孔613、第二安装孔614、第三安装孔615以及第四安装孔616设置为本发明实施例的方式，由此可以进一步增强U型梁61、L型支架62的功能作用。
实施例3：
该实施例3与实施例2的区别在于，第一安装孔613、第二安装孔614、第三安装孔615以及第四安装孔616的数量均为一个、三个或更多个，该第一螺栓8、第二螺栓9、第三螺栓10和第四螺栓11的数量均为一个、三个或更多个，可以根据需要设定数量。
特别地，本发明还提供了一种车辆，该车辆包括前述实施例中的拖车装置。
本发明的拖车装置相比于传统的拖车装置，在能够满足拖拽能力的前提下，降低了本体的重量，提升安装便利性，减少安装工时，同时保留了整车的低速碰撞性能。
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。

Claims (9)

  1. 一种用于车辆的拖车装置，所述车辆包括沿车辆纵向延伸的两个纵梁、设置在所述两个纵梁的一侧且沿车辆横向延伸的后防撞梁、以及设置在所述两个纵梁之间的后地板和后地板横梁，每个所述纵梁的靠近所述后防撞梁的端部与所述后防撞梁之间均通过吸能盒相连，其中，
    所述拖车装置包括前端部分和与所述前端部分连接的后端部分；
    所述前端部分设置在所述后地板和所述后地板横梁上，以使其受到的外力分散在所述后地板横梁上；
    所述后端部分包括连接座和与所述连接座相连、且向所述车辆的外部伸出的拖车钩，所述连接座设置在所述后防撞梁上，以使所述后端部分受到的外力通过所述后防撞梁和所述吸能盒传递到所述纵梁上。
  2. 根据权利要求1所述的拖车装置，其中，所述前端部分包括U型梁，所述U型梁设置在所述后地板的背面。
  3. 根据权利要求2所述的拖车装置，其中，所述U型梁具有两个相对设置的第一端部和第二端部，所述前端部分还包括两个L型支架，所述两个L型支架均设置在所述后地板的正面；
    其中一个L型支架的一端与所述U型梁的所述第一端部相连，另一端与所述后地板横梁相连；
    另一个L型支架的一端与所述U型梁的所述第二端部相连，另一端与所述后地板横梁相连。
  4. 根据权利要求3所述的拖车装置，其中，所述U型梁的所述第一端部具有至少一个第一安装孔，所述U型梁的所述第二端部具有至少一个第二安装孔，每个所述L型支架的一端具有至少一个第三安装孔；
    其中，所述拖车装置还包括至少一个第一螺栓和至少一个第二螺栓，所述第一螺栓贯穿所述第一端部的所述第一安装孔和其中一个L型支架的第三安装孔，以将所述U型梁和其中一个L型支架连接在一起；
    所述第二螺栓贯穿所述第二端部的所述第二安装孔和另一个L型支架的第三安装孔，以将所述U型梁和另一个L型支架连接在一起。
  5. 根据权利要求4所述的拖车装置，其中，每个所述L型支架的另一端具有至少一个第四安装孔，所述拖车装置还包括至少一个第三螺栓和至少一个第四螺栓；
    所述第三螺栓贯穿其中一个L型支架的所述第四安装孔和后地板横梁，以将其中一个L型支架和后地板横梁连接在一起；
    所述第四螺栓贯穿另一个L型支架的所述第四安装孔和后地板横梁，以将另一个L型支架和后地板横梁连接在一起。
  6. 根据权利要求5所述的拖车装置，其中，所述后地板横梁内具有横梁加强板，所述L型支架与所述后地板横梁相连时贯穿所述横梁加强板。
  7. 根据权利要求1-6中任一项所述的拖车装置，其中，所述连接座设置在所述后防撞梁的背面。
  8. 根据权利要求7所述的拖车装置，其中，所述连接座与所述U型梁可拆卸地连接在一起。
  9. 一种车辆，包括如权利要求1-8中任一项所述的拖车装置。
PCT/CN2021/094888 2020-06-08 2021-05-20 一种用于车辆的拖车装置及车辆 WO2021249148A1 (zh)

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JP7471464B2 (ja) 2024-04-19
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US20230226865A1 (en) 2023-07-20
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