A collision target vehicle towing device

Abstract

The application provides a collision target vehicle towing device, which comprises a connecting frame, a first connecting mechanism, a second connecting mechanism, a first elastic anti-collision mechanism and a second elastic anti-collision mechanism, the bottom of the connecting frame is provided with a first roller, the first connecting mechanism is used for being connected with a towing vehicle, and the second connecting mechanism is used for being connected with a collision target vehicle; the left end of the connecting frame is connected with the first connecting mechanism through the first elastic anti-collision mechanism, and the right end of the connecting frame is connected with the second connecting mechanism through the second elastic anti-collision mechanism. The elastic deformation of the first elastic anti-collision mechanism and the second elastic anti-collision mechanism when a collision occurs can be utilized to better buffer and absorb the impact force transmitted to the towing device during the collision, so that the impact force transmitted to the towing vehicle can be effectively reduced, and the damage of the towing vehicle can be better reduced.

Description

Technical Field

[0001] This invention belongs to the field of vehicle driving assistance function testing and calibration technology, and specifically relates to a collision target vehicle towing device. Background Technology

[0002] The target vehicle is a crucial participant in real-world testing of Advanced Driver Assistance Systems (ADAS). Its primary function is to verify the vehicle's ability to accurately identify surrounding target vehicles and to respond appropriately to changes in the target vehicle's driving conditions, including starting, braking, and acceleration. During real-world testing, collisions with the target vehicle due to the test vehicle's substandard technology are inevitable. If a real vehicle is used as the target vehicle, it can easily cause damage to the structure and performance of both vehicles. Unmanned towed soft-collision dummy vehicles are an emerging type of target vehicle. They simulate real vehicles, towed by a tow vehicle using a towing device. The vehicle body is constructed from car-shaped balloons or foam boards, significantly reducing the damage caused by collisions between the test vehicle and the target vehicle. However, current towing devices are rigidly connected, meaning the impact force after a collision is directly transmitted to the tow vehicle, causing significant damage. Therefore, designing a towing device for target vehicles to reduce damage to the tow vehicle in the event of a collision is a pressing technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0003] The purpose of this invention is to provide a collision target vehicle towing device to solve the above-mentioned technical problems in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A collision target vehicle towing device includes a connecting frame, a first connecting mechanism, a second connecting mechanism, a first elastic anti-collision mechanism, and a second elastic anti-collision mechanism. The bottom of the connecting frame is provided with a first roller. The first connecting mechanism is used to connect with a towing vehicle, and the second connecting mechanism is used to connect with the collision target vehicle. The left end of the connecting frame is connected to the first connecting mechanism through the first elastic anti-collision mechanism, and the right end of the connecting frame is connected to the second connecting mechanism through the second elastic anti-collision mechanism.

[0006] Preferably, the first connecting mechanism includes a first connecting frame with an isosceles triangular structure and a first hook disposed at the left tip of the first connecting frame, the first connecting frame being hooked onto the tractor by the first hook; the first elastic anti-collision mechanism is disposed between the right vertical plate of the first connecting frame and the left end of the connecting frame.

[0007] Preferably, the second connecting mechanism includes a second connecting frame and a second hook. The second connecting frame is an isosceles triangle structure, and the second hook is located at the right tip of the second connecting frame. The second connecting frame is hooked onto the target vehicle through the second hook. The second elastic anti-collision mechanism is located between the left vertical plate of the second connecting frame and the right end of the connecting frame. The line connecting the left tip and the right tip coincides with the horizontal center line of the connecting frame.

[0008] Preferably, the first elastic anti-collision mechanism includes a first cylinder and a first elastic element, the left end cylinder rod of the first cylinder is connected to the first connecting mechanism, and the right end cylinder rod of the first cylinder is connected to the connecting frame.

[0009] Preferably, there are two first cylinders and two first elastic elements. The two first cylinders are symmetrically arranged on both sides of the connecting line, and the two first elastic elements are symmetrically arranged on both sides of the connecting line, with the two first elastic elements located between the two first cylinders.

[0010] Preferably, there are four first cylinders and four first elastic elements. The four first cylinders and four first elastic elements are distributed in a rectangular structure between the right vertical plate and the left end of the connecting frame, and the four first elastic elements are located within the space enclosed by the four first cylinders.

[0011] Preferably, the connecting frame includes multiple rectangular frames, which are detachably connected to each other; the upper and lower side plates of the rectangular frames are respectively provided with the first rollers.

[0012] Preferably, the rectangular frame is provided with a reinforcing rod, and the two ends of the reinforcing rod are respectively connected to the two corners of the rectangular frame. The reinforcing rods of two adjacent rectangular frames form a V-shaped structure.

[0013] Preferably, the second elastic anti-collision mechanism includes a U-shaped frame and two telescopic components. Two second rollers are rotatably mounted at both ends of the left vertical plate via fixed frames. The two horizontal plates of the U-shaped frame are detachably connected to the two sides of the right end of the connecting frame. Each of the two fixed frames is provided with a connecting rod extending horizontally towards the U-shaped frame. The two ends of the right side of the vertical plate of the U-shaped frame are connected to the two connecting rods via telescopic components. The telescopic component includes a second cylinder, a first connecting rod, a second connecting rod, and a second elastic element. One end of the cylinder rod of the second cylinder is perpendicularly connected to the vertical plate via the first connecting rod, and the other end of the cylinder rod of the second cylinder is perpendicularly connected to the connecting rod via the second connecting rod. The end of the connecting rod away from the second roller is connected to the vertical plate via the second elastic element.

[0014] Preferably, the second elastic anti-collision mechanism further includes a third elastic element, one end of which is connected to the middle position of the vertical plate, and the other end of which is connected to the middle position of the left vertical plate.

[0015] The beneficial effects of this invention are as follows:

[0016] The collision target vehicle towing device of the present invention has a connecting frame at one end connected to a towing vehicle through a first elastic anti-collision mechanism and a first connecting mechanism, and the other end connected to the collision target vehicle through a second elastic anti-collision mechanism and a second connecting mechanism. When the test vehicle collides with the collision target vehicle, since the towing device located between the collision target vehicle and the towing vehicle has a first elastic anti-collision mechanism and a second elastic anti-collision mechanism, the elastic deformation of the first elastic anti-collision mechanism and the second elastic anti-collision mechanism can effectively buffer and absorb the impact force transmitted to the towing device during the collision, thereby effectively reducing the impact force transmitted to the towing vehicle and thus effectively reducing the damage to the towing vehicle during the collision. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly described below, and the specific embodiments of the present invention will be further described in detail with reference to the drawings, wherein...

[0018] Figure 1 This is a schematic diagram of a collision target vehicle towing device provided in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the telescopic component connected to the vertical plate according to an embodiment of the present invention.

[0020] Marked in the attached diagram:

[0021] 11. Right vertical plate; 12. Left tip; 13. Connecting line; 21. First cylinder.

[0022] 22. First elastic element; 23. Left cylinder rod; 24. Right cylinder rod; 31. Rectangular frame.

[0023] 32. First roller; 33. Reinforcing bar; 41. Horizontal plate; 42. Telescopic assembly.

[0024] 421. Second cylinder; 422. Second elastic element; 423. First connecting rod; 424. Second connecting rod; 43. Third elastic element; 44. Vertical plate; 45. Second roller; 46. Connecting rod.

[0025] 51. Left vertical plate; 52. Right tip. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present solution will be further described in detail below with reference to specific embodiments.

[0027] like Figure 1 and Figure 2 As shown, this embodiment of the invention provides a collision target vehicle towing device, which includes a connecting frame, a first connecting mechanism, a second connecting mechanism, a first elastic anti-collision mechanism, and a second elastic anti-collision mechanism. The bottom of the connecting frame is provided with a first roller 32. The first connecting mechanism is used to connect with a towing vehicle, and the second connecting mechanism is used to connect with the collision target vehicle. The left end of the connecting frame is connected to the first connecting mechanism through the first elastic anti-collision mechanism, and the right end of the connecting frame is connected to the second connecting mechanism through the second elastic anti-collision mechanism.

[0028] The collision target vehicle towing device provided in this embodiment of the invention has a connecting frame with one end connected to the towing vehicle through a first elastic anti-collision mechanism and a first connecting mechanism, and the other end connected to the collision target vehicle through a second elastic anti-collision mechanism and a second connecting mechanism. When the test vehicle collides with the collision target vehicle, since the towing device located between the collision target vehicle and the towing vehicle has a first elastic anti-collision mechanism and a second elastic anti-collision mechanism, the elastic deformation of the first elastic anti-collision mechanism and the second elastic anti-collision mechanism can effectively buffer and absorb the impact force received by the towing device during the collision, thereby effectively reducing the impact force transmitted to the towing vehicle, and thus effectively reducing the damage to the towing vehicle during the collision.

[0029] Furthermore, the first connecting mechanism includes a first connecting frame with an isosceles triangular structure and a first hook disposed at the left tip 12 of the first connecting frame. The first connecting frame is hooked onto the tractor vehicle by the first hook. The first elastic anti-collision mechanism is disposed between the right vertical plate 11 of the first connecting frame and the left end of the connecting frame, thereby making the structure of the first connecting mechanism relatively simple and relatively strong and reliable.

[0030] Specifically, the second connecting mechanism includes a second connecting frame and a second hook. The second connecting frame is an isosceles triangle structure, and the second hook is located at the right tip 52 of the second connecting frame. The second connecting frame is hooked onto the target vehicle through the second hook. The second elastic anti-collision mechanism is located between the left vertical plate 51 of the second connecting frame and the right end of the connecting frame. The line connecting the left tip and the right tip coincides with the horizontal center line of the connecting frame. This design makes the structure of the second connecting mechanism relatively simple, robust, and reliable.

[0031] Furthermore, the first elastic anti-collision mechanism includes a first cylinder 21 and a first elastic element 22. The left cylinder rod 23 of the first cylinder is connected to the first connecting mechanism, and the right cylinder rod 24 of the first cylinder is connected to the connecting frame. With this design, when the traction device is subjected to the impact force generated by a collision, the process of the left and right cylinder rods of the first cylinder 21 retracting into the cylinder, and the elastic deformation process of the first elastic element 22 when compressed, can effectively buffer and absorb the impact force, thereby achieving a better buffering and energy absorption effect.

[0032] In one embodiment of the present invention, there are two first cylinders 21 and two first elastic elements 22. The two first cylinders are symmetrically arranged on both sides of the connecting line, and the two first elastic elements are symmetrically arranged on both sides of the connecting line, with the two first elastic elements located between the two first cylinders. This scheme effectively increases the number of first cylinders and first elastic elements, further improving the buffering and energy absorption effect of the first elastic anti-collision mechanism. Simultaneously, the symmetrical arrangement of the two first cylinders and two first elastic elements on both sides of the connecting line ensures that the buffering and energy absorption effects obtained on both sides of the right vertical plate are more consistent.

[0033] In another embodiment of the present invention, there are four first cylinders and four first elastic elements. The four first cylinders and four first elastic elements are distributed in a rectangular structure between the right vertical plate and the left end of the connecting frame, and the four first elastic elements are located within the space enclosed by the four first cylinders. This scheme further increases the number of first cylinders and first elastic elements, enabling the first elastic anti-collision mechanism to provide better buffering and energy absorption. Simultaneously, the four first cylinders and four first elastic elements can be symmetrically arranged in pairs on both sides of the connecting line, ensuring a more consistent buffering and energy absorption effect on both sides of the right vertical plate.

[0034] It is understandable that when there is only one first cylinder 21 and one first elastic element 22, the first cylinder and the first elastic element are symmetrically arranged on both sides of the connecting line, so that the two sides of the right vertical plate can be buffered and have a more consistent energy absorption effect.

[0035] Preferably, the connecting frame includes multiple rectangular frames 31, which are detachably connected to each other; the lower and upper side plates of the rectangular frames 31 are respectively provided with the first rollers 32. With this design, the first rollers 32 enable the traction device to move on the ground; at the same time, different numbers of rectangular frames 31 can be used to connect and use as needed to control the extension length of the connecting frame.

[0036] Specifically, the rectangular frame 31 is provided with reinforcing rods 33, the two ends of which are connected to the two corners of the rectangular frame. The reinforcing rods of two adjacent rectangular frames form a V-shaped structure, thereby effectively improving the strength of the connecting frame. It is understood that, in a specific embodiment, such as... Figure 1 As shown, the left end of the reinforcing rod 33 of a rectangular frame is connected to the lower left corner of the rectangular frame, and the right end of the reinforcing rod 33 is connected to the upper right corner of the rectangular frame. The left end of the reinforcing rod of the rectangular frame adjacent to this rectangular frame is connected to the upper left corner of the rectangular frame, and the right end of the reinforcing rod is connected to the lower right corner of the rectangular frame. At this time, the two adjacent reinforcing rods form a V-shaped structure; the horizontal center line of the rectangular frame coincides with the connecting line 13.

[0037] Furthermore, the second elastic anti-collision mechanism includes a U-shaped frame, two telescopic components 42, and two second rollers 45 rotatably mounted at both ends of the left vertical plate via fixed frames. The two horizontal plates 41 of the U-shaped frame are detachably connected to the two sides of the right end of the connecting frame. Each of the two fixed frames is provided with a connecting rod 46 extending horizontally towards the U-shaped frame. The two ends of the right side of the vertical plate 44 of the U-shaped frame are connected to the two connecting rods 46 via telescopic components 42. The telescopic components include a second cylinder 421, a first connecting rod 423, a second connecting rod 424, and a second elastic element 422. One end of the cylinder rod of the second cylinder is perpendicularly connected to the vertical plate 44 via the first connecting rod 423, and the other end of the cylinder rod of the second cylinder is perpendicularly connected to the connecting rod 46 via the second connecting rod 424. The end of the connecting rod 46 away from the second rollers 45 is connected to the vertical plate 44 via the second elastic element 422. With this design, when the traction device is subjected to impact, the retraction action of the cylinder rods at both ends of the second cylinder 421 under pressure and the elastic deformation of the second elastic element 422 under pressure can buffer and absorb the impact force, thereby effectively reducing the impact force transmitted to the connecting frame, and thus reducing the impact force on the traction vehicle, making the traction vehicle less susceptible to damage. It is understood that the second roller can be rotatably mounted on the left vertical plate in the following way: the second roller is rotatably connected to a U-shaped fixed frame via a rotating shaft, and the fixed frame is fixed to the left vertical plate. Figure 2 The second roller is shown in the image; the mounting bracket is not shown. Figure 2 Only the telescopic assembly installed at the lower end of the right side of the vertical plate is shown. Since the telescopic assembly installed at the other end of the right side of the vertical plate, i.e. the upper end, has the same structure as the telescopic assembly already shown, it is not shown.

[0038] In another embodiment, the first connecting rod 423 is obliquely connected to the vertical plate 44, the other end of the cylinder rod of the second cylinder 421 is rotatably connected to the upper end of the second connecting rod 424, and the lower end of the second connecting rod 424 is rotatably connected to the connecting rod 46. With this design, upon impact, the connecting rod drives the second connecting rod to move to the left and rotate around the connection point between the upper end of the second connecting rod and the other end of the cylinder rod of the second cylinder, causing the lower ends of the connecting rod and the second connecting rod to be lifted upwards. This allows for better adaptation to different test road surfaces and avoids significant damage to the target vehicle. Furthermore, by adjusting the installation angles of the first connecting rod and the vertical plate, as well as the installation angles of the first connecting rod and the second cylinder, the height at which the lower ends of the connecting rod and the second connecting rod are lifted can be adjusted, enabling the device to better adapt to different test road environments and exhibiting good versatility.

[0039] Specifically, the second elastic anti-collision mechanism further includes a third elastic element 43. One end of the third elastic element 43 is connected to the middle of the vertical plate 44, and the other end is connected to the middle of the left vertical plate 51. Thus, the elastic deformation of the third elastic element can also provide good buffering and energy absorption, thereby giving the second elastic anti-collision mechanism a better buffering and energy absorption effect. It is understood that the two ends of the third elastic element 43 do not necessarily have to be directly connected to the vertical plate 44 and the left vertical plate 51; they can be connected to the horizontal plate and the left vertical plate via a rod. Preferably, each elastic element is a spring.

[0040] The above are merely preferred embodiments of the present invention. It should be noted that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. Moreover, after reading the contents of the present invention, those skilled in the art can make various modifications or alterations to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A traction device for a target vehicle in a collision, characterized in that, It includes a connecting frame, a first connecting mechanism, a second connecting mechanism, a first elastic anti-collision mechanism, and a second elastic anti-collision mechanism. The bottom of the connecting frame is provided with a first roller. The first connecting mechanism is used to connect with a tractor vehicle, and the second connecting mechanism is used to connect with the target vehicle. The left end of the connecting frame is connected to the first connecting mechanism through the first elastic anti-collision mechanism, and the right end of the connecting frame is connected to the second connecting mechanism through the second elastic anti-collision mechanism. The first connecting mechanism includes a first connecting frame with an isosceles triangular structure and a first hook disposed at the left tip of the first connecting frame. The first connecting frame is hooked onto the tractor vehicle via the first hook. The first elastic anti-collision mechanism is disposed between the right vertical plate of the first connecting frame and the left end of the connecting frame. The second connecting mechanism includes a second connecting frame and a second hook. The second connecting frame is an isosceles triangle structure, and the second hook is located at the right tip of the second connecting frame. The second connecting frame is hooked onto the target vehicle through the second hook. The second elastic anti-collision mechanism is located between the left vertical plate of the second connecting frame and the right end of the connecting frame. The line connecting the left tip and the right tip coincides with the horizontal center line of the connecting frame. The first elastic anti-collision mechanism includes a first cylinder and a first elastic element. The left cylinder rod of the first cylinder is connected to the first connecting mechanism, and the right cylinder rod of the first cylinder is connected to the connecting frame. The second elastic anti-collision mechanism includes a U-shaped frame and two telescopic components. Two second rollers are rotatably mounted at both ends of the left vertical plate via fixed frames. The two horizontal plates of the U-shaped frame are detachably connected to the two sides of the right end of the connecting frame. Each of the two fixed frames is provided with a connecting rod extending horizontally towards the U-shaped frame. The two ends of the right side of the vertical plate of the U-shaped frame are connected to the two connecting rods via telescopic components. The telescopic component includes a second cylinder, a first connecting rod, a second connecting rod, and a second elastic element. One end of the cylinder rod of the second cylinder is perpendicularly connected to the vertical plate via the first connecting rod, and the other end of the cylinder rod of the second cylinder is perpendicularly connected to the connecting rod via the second connecting rod. The end of the connecting rod away from the second roller is connected to the vertical plate via the second elastic element. The second elastic anti-collision mechanism also includes a third elastic element, one end of which is connected to the middle position of the vertical plate, and the other end of which is connected to the middle position of the left vertical plate.

2. The collision target vehicle towing device according to claim 1, characterized in that, There are two first cylinders and two first elastic elements. The two first cylinders are symmetrically arranged on both sides of the connecting line, and the two first elastic elements are symmetrically arranged on both sides of the connecting line, with the two first elastic elements located between the two first cylinders.

3. The collision target vehicle towing device according to claim 1, characterized in that, There are four first cylinders and four first elastic elements. The four first cylinders and four first elastic elements are distributed in a rectangular structure between the right vertical plate and the left end of the connecting frame, and the four first elastic elements are located within the space enclosed by the four first cylinders.

4. The collision target vehicle towing device according to claim 1, characterized in that, The connecting frame includes multiple rectangular frames, which are detachably connected to each other; the first rollers are respectively provided on the upper and lower side plates of the rectangular frames.

5. The collision target vehicle towing device according to claim 4, characterized in that, The rectangular frame is provided with reinforcing rods, and the two ends of the reinforcing rods are respectively connected to the two corners of the rectangular frame. The reinforcing rods of two adjacent rectangular frames form a V-shaped structure.

Images