Auxiliary device for hill starting slip test
By combining a motor-driven gear ring structure with a ranging radar and a limit switch, the accuracy and safety issues of slope testing in existing devices have been solved, achieving high-precision slope measurement and equipment protection.
Patent Information
- Application Number
- CN202423150737.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing auxiliary devices for hill start and rollback testing are difficult to measure the vehicle rollback distance quickly and accurately, and the distance measuring equipment is easily damaged by vehicle collisions during the test.
The rangefinding radar is equipped with a gear ring structure driven by a motor. The position of the rangefinding radar is controlled by a limit switch. The rangefinding radar is protected by a damper and a buffer pad, ensuring ranging accuracy and equipment safety.
High-precision slope testing was achieved, avoiding direct collisions between the vehicle and the ranging radar, protecting the integrity of the ranging equipment, and improving the reliability and accuracy of the test.
Smart Images
Figure CN223842135U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slope testing technology, specifically an auxiliary device for slope start-up and slope slip testing. Background Technology
[0002] When a vehicle is driving on a slope, it may stop on the slope due to reasons such as pulling over, yielding to pedestrians and other vehicles, waiting at traffic lights, or traffic jams. When starting again, the vehicle may roll downhill due to gravity because the power from the engine or electric motor has not yet been input to the wheels. This can easily lead to a collision with pedestrians, other vehicles, buildings, or other objects behind it.
[0003] To reduce rollback, existing technologies are typically developed in two directions. One is to require drivers to undergo specialized training and assessment for starting on a slope when learning to drive. The other is to suppress rollback during vehicle development by using the vehicle's control system. Whether it is personnel assessment or vehicle development testing, it is necessary to use auxiliary devices for hill start rollback testing to check whether the vehicle is rolling back.
[0004] Existing hill start assist devices mainly use sensors around the vehicle to identify track markings. This testing method has a fixed effect and requires the vehicle to be stopped at the parking line. When starting, the vehicle rolls to the roll indication line, which makes it difficult to quickly know the actual roll distance during the development process. Even if the vehicle does not roll to the designated line, it can still determine whether the vehicle has rolled. The test results are poor. Utility Model Content
[0005] Based on this, the purpose of this utility model is to provide an auxiliary device for hill start and slope slip test, so as to solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for testing the starting and sliding motion of a ramp, comprising a ramp body, a column connected to the top of the ramp body, a top frame connected to the top of the column, a motor installed inside the top frame, a gear connected to the output end of the motor, a first bracket installed on the outer surface of the column, and a gear ring installed on the top of the first bracket; a ranging radar installed on one side of the first bracket; a backing plate fixed to the back of the first bracket, and fixing frames fixed to one side and the back of the column, with limit switches installed on the back of one fixing frame and one side of the other fixing frame.
[0007] By adopting the above technical solution, after the vehicle is parked on the main body of the ramp, the staff turns on the motor and the ranging radar. After the motor starts, the output end drives the first bracket to rotate through the meshing of the gear and the ring gear. When the first bracket rotates, it will drive the stop plate to rotate as well. When the stop plate rotates 90 degrees, it will contact a limit switch. The limit switch sends an electrical signal to the external controller, at which point the motor will automatically shut off, so that the ranging radar is aligned with the vehicle. At this time, the vehicle starts to move. The ranging radar measures the distance between itself and the vehicle in real time, so as to determine whether the vehicle is slipping on the ramp and the specific distance of the vehicle slipping. This information is converted into an electrical signal and output to the staff's computer. After the vehicle starts, since the ranging radar is constantly measuring the distance to the vehicle, before the vehicle approaches the ranging radar, the motor output end can automatically reverse and drive the first bracket to reverse through the gear and the ring gear. Alternatively, after the vehicle starts, the staff can manually control the motor output end to reverse. When the first bracket reverses, it will also drive the stop plate to reverse. When the stop plate reverses 90 degrees, it will contact another limit switch, at which point the motor will automatically shut off, so that the ranging radar rotates to avoid the vehicle and prevents the ranging radar from being damaged by the vehicle.
[0008] Furthermore, the gear meshes with the gear ring, and the first bracket is rotatably connected to the column.
[0009] By adopting the above technical solution, the motor output end drives the first bracket to rotate through gear meshing with the gear ring, thereby making the ranging radar correspond to the vehicle.
[0010] Furthermore, the ranging radar is tilted.
[0011] By adopting the above technical solution, the tilt setting of the ranging radar can correspond to the tilted vehicles on the main body of the slope, thereby facilitating the determination of vehicle distance and whether the vehicle is sliding down the slope.
[0012] Furthermore, the ranging radar is either a millimeter-wave radar or a lidar.
[0013] By adopting the above technical solution, the distance between the radar and the vehicle is measured in real time to determine whether the vehicle is rolling downhill and the specific distance the vehicle has rolled downhill.
[0014] Furthermore, the abutment plate abuts against two limit switches respectively, and the two limit switches are vertically distributed.
[0015] By adopting the above technical solution, when the first bracket rotates, it will drive the bottom plate to rotate as well. When the bottom plate rotates 90 degrees, it will contact a limit switch, at which point the motor will be turned off, thereby making the ranging radar correspond to the vehicle. When the first bracket reverses, it will also drive the bottom plate to reverse as well. When the bottom plate reverses 90 degrees, it will contact another limit switch, at which point the motor will be turned off.
[0016] Furthermore, a second bracket is connected to the lower part of the outer surface of the column, and a damper is installed on one side of the second bracket. A spring is sleeved on the outside of the damper, and a buffer pad is connected to one side of the damper through a support plate. A linkage block is fixed on the other side of the second bracket, and a screw rod passes through the top of the linkage block.
[0017] By adopting the above technical solution, when the electronic control structure malfunctions and causes the ranging radar and the first bracket to fail to reverse and avoid the vehicle, the vehicle will first collide with the buffer pad to avoid direct impact with the ranging radar and damage to it. Then, the buffer pad and damper work together to absorb kinetic energy and reduce the impact force. At the same time, the second bracket is reversed under force, causing the second bracket to pull the abutment plate through the linkage block and screw, thereby causing the first bracket to drive the ranging radar to reverse and avoid the vehicle. After the vehicle moves away, the spring drives the damper to extend and reset, ready to deal with the next malfunction.
[0018] Furthermore, the second bracket is rotatably connected to the column.
[0019] By adopting the above technical solution, the vehicle will first collide with the buffer pad, and then the buffer pad and damper will work together to absorb kinetic energy and reduce the impact force, while the second support will be reversed under the force.
[0020] Furthermore, there are three dampers and three springs, and the three dampers and springs are distributed at equal intervals.
[0021] By adopting the above technical solution, the impact force is reduced by absorbing kinetic energy through the combination of buffer pads and dampers, and the energy absorption effect is improved by increasing the number of dampers.
[0022] Furthermore, the buffer pad has a fan-shaped cross-section and is made of rubber material.
[0023] By adopting the above technical solution, when the electronic control structure malfunction causes the ranging radar and the first support to reverse and fail to avoid the vehicle, the vehicle will first collide with the buffer pad, thus avoiding direct impact with the ranging radar and damage to the ranging radar.
[0024] Furthermore, the linkage block is arranged parallel to the abutment plate, and the screw is connected to the abutment plate.
[0025] By adopting the above technical solution, when the second bracket is reversed due to a vehicle impact, the second bracket pulls the stop plate through the linkage block and screw, thereby causing the first bracket to drive the ranging radar to reverse and avoid the vehicle.
[0026] In summary, the present invention has the following main advantages:
[0027] 1. This utility model, through the arrangement of a first bracket, a ranging radar, a motor, gears, and a gear ring, allows the first bracket to rotate after the vehicle is parked on the ramp body, via the gear meshing with the gear ring. This aligns the ranging radar with the vehicle. As the vehicle begins to move, the ranging radar measures the distance to the vehicle in real time, determining whether the vehicle is rolling backward and the specific distance it has rolled. Once the vehicle starts moving, the ranging radar continuously measures the distance to the vehicle. Therefore, before the vehicle approaches the ranging radar, the motor output automatically reverses, driving the first bracket to reverse through the gear and gear ring, thus causing the ranging radar to rotate and avoid the vehicle, preventing it from being damaged by the vehicle. The testing results are excellent and highly accurate.
[0028] 2. This utility model, through the setting of a stop plate and a limit switch, causes the stop plate to rotate when the first bracket rotates. When the stop plate rotates 90 degrees, it contacts a limit switch, at which point the motor is turned off, thereby aligning the ranging radar with the vehicle. When the first bracket reverses, it also causes the stop plate to reverse. When the stop plate reverses 90 degrees, it contacts another limit switch, at which point the motor is turned off; thus facilitating precise control of the position of the first bracket.
[0029] 3. This utility model, through the arrangement of a second bracket, damper, spring, buffer pad, linkage block, and screw, ensures that when a fault in the electronic control structure causes the ranging radar to fail to avoid a vehicle, the vehicle will first collide with the buffer pad, preventing direct impact and damage to the ranging radar. Then, the buffer pad and damper work together to absorb kinetic energy and reduce the impact force. Simultaneously, the second bracket is reversed under force, causing it to pull the stop plate via the linkage block and screw. This, in turn, causes the first bracket to reverse and allow the ranging radar to avoid the vehicle. After the vehicle moves away, the spring drives the damper to extend and reset, preparing for the next malfunction; effectively preventing vehicles from damaging the ranging radar. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the structure of this utility model;
[0031] Figure 2 This is a schematic diagram of the column structure according to Embodiment 1 of this utility model;
[0032] Figure 3 This is a schematic diagram of the column cross-sectional structure according to Embodiment 1 of this utility model;
[0033] Figure 4 This is a schematic diagram of the exploded structure of the back of the column according to Embodiment 1 of this utility model;
[0034] Figure 5 This is a schematic diagram of the back structure of the column in Embodiment 2 of this utility model.
[0035] In the diagram: 1. Ramp body; 2. Column; 3. Fixing frame; 4. Limit switch; 5. First support; 6. Ranging radar; 7. Support plate; 8. Top frame; 9. Motor; 10. Gear; 11. Gear ring; 12. Second support; 13. Damper; 14. Spring; 15. Support plate; 16. Buffer pad; 17. Linkage block; 18. Screw. Detailed Implementation
[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0037] The embodiments of this utility model will be described below based on its overall structure.
[0038] Example 1:
[0039] An auxiliary device for hill start and rollback testing, such as Figures 1-5 As shown, the system includes a ramp body 1, a column 2 connected to the top of the ramp body 1, a top frame 8 connected to the top of the column 2, a motor 9 installed inside the top frame 8, a gear 10 connected to the output end of the motor 9, a first bracket 5 mounted on the outer surface of the column 2, the first bracket 5 being rotatably connected to the column 2, a gear ring 11 mounted on the top of the first bracket 5, the gear 10 meshing with the gear ring 11, and after the motor 9 starts, the output end drives the first bracket 5 to rotate through the meshing of the gear 10 and the gear ring 11, so that the ranging radar 6 corresponds to the vehicle; a ranging radar 6 is mounted on one side of the first bracket 5, the ranging radar 6 being tilted, the ranging radar 6 being either a millimeter-wave radar or a lidar, when the vehicle starts moving, the ranging radar 6 measures the distance between itself and the vehicle in real time, thereby determining whether the vehicle is rolling backwards and the specific distance the vehicle has rolled backwards, and converting this into an electrical signal output to the operator's computer.
[0040] See Figures 2-5 In the above embodiment, a back plate 7 is fixed to the back of the first bracket 5, and a fixing frame 3 is fixed to one side and the back of the column 2. Limit switches 4 are installed on the back of one fixing frame 3 and one side of the other fixing frame 3. The back plate 7 abuts against the two limit switches 4 respectively. The two limit switches 4 are vertically distributed. When the first bracket 5 rotates, it will drive the back plate 7 to rotate together. When the back plate 7 rotates 90 degrees, it will contact one of the limit switches 4. One limit switch 4 sends an electrical signal to the external controller. At this time, the motor 9 will automatically shut down. When the first bracket 5 reverses, it will also drive the back plate 7 to reverse. When the back plate 7 reverses 90 degrees, it will contact the other limit switch 4. At this time, the motor 9 will automatically shut down.
[0041] Example 2:
[0042] Based on the above embodiment one, in order to avoid damage to the ranging radar 6 due to electronic control failure, the following settings are now implemented.
[0043] See Figure 1 and Figure 5 In the above embodiment, a second bracket 12 is connected to the lower outer surface of the column 2. The second bracket 12 is rotatably connected to the column 2. A damper 13 is installed on one side of the second bracket 12. A spring 14 is sleeved on the outside of the damper 13. There are three dampers 13 and three springs 14, which are equidistantly distributed. A buffer pad 16 is connected to one side of the damper 13 through a support plate 15. The buffer pad 16 has a fan-shaped cross-section and is made of rubber material. The vehicle will first come into contact with the buffer pad 16. In case of a collision, to prevent the vehicle from directly impacting the ranging radar 6 and causing damage to it, the buffer pad 16 and damper 13 work together to absorb kinetic energy and reduce the impact force; a linkage block 17 is fixed on the other side of the second bracket 12, and a screw 18 passes through the top of the linkage block 17. The linkage block 17 is set parallel to the abutment plate 7, and the screw 18 is connected to the abutment plate 7. When the second bracket 12 is subjected to force and reverses, the second bracket 12 pulls the abutment plate 7 through the linkage block 17 and the screw 18, thereby causing the first bracket 5 to drive the ranging radar 6 to reverse and avoid the vehicle.
[0044] The implementation principle of this utility model is as follows: First, after the vehicle is parked on the main body 1 of the ramp, the staff turns on the motor 9 and the ranging radar 6. After the motor 9 starts, the output end drives the first bracket 5 to rotate through the meshing of the gear 10 and the gear ring 11. When the first bracket 5 rotates, it will drive the abutment 7 to rotate together. When the abutment 7 rotates ninety degrees, it contacts a limit switch 4. The limit switch 4 sends an electrical signal to the external controller. At this time, the motor 9 automatically shuts off, so that the ranging radar 6 corresponds to the vehicle.
[0045] At this point, the vehicle starts moving. The distance between the vehicle and the radar is measured in real time by the ranging radar 6 to determine whether the vehicle is rolling backwards and the specific distance the vehicle has rolled backwards. This information is then converted into an electrical signal and output to the operator's computer.
[0046] After the vehicle starts, since the ranging radar 6 is constantly measuring the distance to the vehicle, before the vehicle approaches the ranging radar 6, the output of the motor 9 can automatically reverse and drive the first bracket 5 to reverse through the gear 10 and the gear ring 11. Alternatively, after the vehicle starts, the operator can manually control the output of the motor 9 to reverse. When the first bracket 5 reverses, it also drives the stop plate 7 to reverse. When the stop plate 7 reverses 90 degrees, it contacts another limit switch 4. At this time, the motor 9 automatically shuts off, so that the ranging radar 6 rotates to avoid the vehicle and prevents the vehicle from damaging the ranging radar 6.
[0047] When a fault in the electronic control structure causes the ranging radar 6 and the first bracket 5 to fail to reverse and avoid the vehicle, the vehicle will first collide with the buffer pad 16 to prevent the ranging radar 6 from being damaged by a direct impact. Then, the buffer pad 16 and the damper 13 work together to absorb kinetic energy and reduce the impact force. At the same time, the second bracket 12 is reversed by the force, which causes the second bracket 12 to pull the abutment plate 7 through the linkage block 17 and the screw 18. This causes the first bracket 5 to drive the ranging radar 6 to reverse and avoid the vehicle. After the vehicle moves away, the spring 14 drives the damper 13 to extend and reset, ready to deal with the next fault.
[0048] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. An auxiliary device for testing the slippage of a ramp during a start, comprising a ramp body (1), characterized in that: The ramp body (1) is connected to a column (2) at the top, and a top frame (8) is connected to the top of the column (2). A motor (9) is installed inside the top frame (8). A gear (10) is connected to the output end of the motor (9). A first bracket (5) is installed on the outer surface of the column (2), and a gear ring (11) is installed on the top of the first bracket (5). A ranging radar (6) is installed on one side of the first bracket (5). A back plate (7) is fixed on the back of the first bracket (5). A fixing frame (3) is fixed on one side and the back of the column (2). A limit switch (4) is installed on the back of one fixing frame (3) and one side of the other fixing frame (3).
2. The auxiliary device for hill start and rollback test according to claim 1, characterized in that: The gear (10) meshes with the gear ring (11), and the first bracket (5) is rotatably connected to the column (2).
3. The auxiliary device for hill start and rollback test according to claim 1, characterized in that: The ranging radar (6) is tilted.
4. The auxiliary device for hill start and rollback test according to claim 3, characterized in that: The ranging radar (6) is either a millimeter-wave radar or a lidar.
5. The auxiliary device for hill start and rollback test according to claim 1, characterized in that: The abutment (7) abuts against two limit switches (4) respectively, and the two limit switches (4) are vertically distributed.
6. The auxiliary device for hill start and rollback test according to claim 1, characterized in that: The second bracket (12) is connected to the lower part of the outer surface of the column (2), and a damper (13) is installed on one side of the second bracket (12). A spring (14) is sleeved on the outside of the damper (13), and a buffer pad (16) is connected to one side of the damper (13) through a support plate (15). A linkage block (17) is fixed on the other side of the second bracket (12), and a screw (18) passes through the top of the linkage block (17).
7. The auxiliary device for hill start and rollback test according to claim 6, characterized in that: The second bracket (12) is rotatably connected to the column (2).
8. The auxiliary device for hill start and rollback test according to claim 6, characterized in that: There are three dampers (13) and three springs (14), and the three dampers (13) and springs (14) are equidistantly distributed.
9. The auxiliary device for hill start and rollback test according to claim 6, characterized in that: The buffer pad (16) has a fan-shaped cross section and is made of rubber material.
10. The auxiliary device for hill start and rollback test according to claim 6, characterized in that: The linkage block (17) is arranged parallel to the abutment plate (7), and the screw (18) is connected to the abutment plate (7).