Vehicle turning radius measuring device
Patent Information
- Application Number
- CN202522382313.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-10
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-11-10
AI Technical Summary
[0003]本实用新型的主要目的是提出一种车辆转弯半径测量装置，旨在解决目前车辆转弯半径测量的方式存在人工劳动强度大、测量精准度不高的技术问题
[0014]本实用新型的车辆转弯半径测量装置，在测试前，通过支撑座将整个车辆转弯半径测量装置安装于待测试车辆的引擎盖上，并通过调整支撑座上的调节臂的位置，以带动初步的调整测量机构的位置，使得轨迹检测器以及距离检测器与前外转向轮中心轴进行初步对准，并再通过调节臂进一步调整测量机构的位置，使轨迹检测器以及距离检测器与前外转向轮中心轴对准精度更高。在测试过程中，车辆的方向盘向前内转向轮转动至极限位置，在车辆移动时，通过轨迹检测器精准测量得到前外转向轮的移动轨迹，并同时通过距离检测器精准测得该前外转向轮的移动距离，之后根据移动轨迹以及移动距离计算得到车辆转弯半径。从而通过该测量装置测量车辆转弯半径时，仅需要一人控制车辆转弯即可，降低了人工劳动强度，且通过轨迹检测器以及距离检测器在车辆转弯的同时即可测得前外转向轮的移动轨迹和移动距离，测量效率以及测量精准度更高。
Smart Images
Figure CN224873071U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of measuring device technology, and in particular to a vehicle turning radius measuring device. Background Technology
[0002] Currently, vehicle turning radius measurement mainly relies on manual operation. One person inside the vehicle turns the steering wheel to its full lock and drives the vehicle to turn, while another person outside the vehicle applies white powder to the front outer steering wheel. When the vehicle turns, the white powder on the front outer steering wheel leaves a white mark on the ground. This mark represents the movement trajectory and distance of the front outer steering wheel during the turn. The turning radius is then manually measured based on this movement trajectory and distance. However, this method requires two people to operate, which is labor-intensive. Furthermore, the mark left by the white powder is easily blurred, leading to large measurement errors and low accuracy. Utility Model Content
[0003] The main purpose of this invention is to propose a vehicle turning radius measuring device, which aims to solve the technical problems of high manual labor intensity and low measurement accuracy in current methods of measuring vehicle turning radius.
[0004] To achieve the above objectives, this utility model proposes a vehicle turning radius measuring device, comprising: A support base that can be mounted on the hood of the vehicle and near the front outer steering wheel; An adjusting arm is slidably disposed on the top of the support base; A measuring mechanism is provided at the top of the adjusting arm. The measuring mechanism includes a trajectory detector and a distance detector. The distance detector is positioned above the trajectory detector, and both the trajectory detector and the distance detector are located above the central axis of the front outer steering wheel. The trajectory detector is used to measure the movement trajectory of the front outer steering wheel when the vehicle turns, and the distance detector is used to measure the movement distance of the front outer steering wheel.
[0005] In one embodiment, the support base includes a suction cup and a support block. The adjusting arm is slidably disposed on the top of the support block, the suction cup is disposed on the bottom of the support block, and the suction surface of the suction cup faces away from the support block. The suction cup can be attached to the hood of the vehicle.
[0006] In one embodiment, there are multiple support blocks, one end of each support block is connected to form a connection position, and the other ends of the multiple support blocks are distributed at intervals around the connection position so that any two adjacent support blocks are arranged at an angle. Each support block is provided with a suction cup at its bottom, and the adjusting arm is slidably disposed on the top of one of the support blocks.
[0007] In one embodiment, the top of the support block is provided with a groove, and the extension direction of the groove is consistent with the extension direction of the corresponding support block. The bottom of the adjusting arm is connected to a sliding plate, and the bottom of the sliding plate is provided with a slider that can extend into the groove and slide in cooperation with the groove.
[0008] In one embodiment, the adjusting arm includes a first adjusting rod, a second adjusting rod, and a third adjusting rod that are hinged sequentially from top to bottom. The measuring mechanism is disposed at the top of the first adjusting rod, and the bottom of the third adjusting rod is hinged to the top of the slide plate.
[0009] In one embodiment, the first adjusting rod is hinged to the second adjusting rod by a first locking pin, and the bottom of the first adjusting rod and the top of the second adjusting rod are respectively provided with two first hinge ears, and the first locking pin is rotatably passed through the two first hinge ears; The second adjusting rod is hinged to the third adjusting rod via a second locking pin. The bottom of the second adjusting rod and the top of the third adjusting rod are respectively provided with two second hinge ears, and the second locking pin is rotatably passed through the two second hinge ears. The third adjusting rod is hinged to the slide plate via a third locking pin. The bottom of the third adjusting rod and the top of the slide plate are respectively provided with two third hinge ears, and the third locking pin is rotatably inserted through the two third hinge ears.
[0010] In one embodiment, the first locking pin, the second locking pin, and the third locking pin all extend in a horizontal direction, and the extension direction of the first locking pin is perpendicular to the extension direction of the second locking pin, while the extension direction of the second locking pin is consistent with the extension direction of the third locking pin.
[0011] In one embodiment, the measuring mechanism further includes a mounting frame connected to the top of the adjusting arm, the mounting frame forming a mounting groove with an opening on the side, the trajectory detector being mounted in the mounting groove, and the distance detector being disposed at the top of the mounting frame and above the trajectory detector.
[0012] In one embodiment, the trajectory detector is a gyroscope and the distance detector is a GPS receiver.
[0013] In one embodiment, the measuring mechanism further includes a level, which is positioned above the distance detector.
[0014] This utility model discloses a vehicle turning radius measuring device. Before testing, the entire device is mounted on the hood of the vehicle under test using a support base. Adjusting the position of the adjusting arm on the support base initially adjusts the position of the measuring mechanism, aligning the trajectory detector and distance detector with the center axis of the outer front steering wheel. Further adjustments are made using the adjusting arm to achieve higher alignment accuracy. During testing, the vehicle's steering wheel is turned to its limit towards the inner front steering wheel. As the vehicle moves, the trajectory detector accurately measures the movement trajectory of the outer front steering wheel, and the distance detector simultaneously measures its distance. The turning radius is then calculated based on the trajectory and distance. Therefore, this device requires only one person to control the vehicle's turning, reducing manual labor. Furthermore, the ability to measure the trajectory and distance of the outer front steering wheel simultaneously while the vehicle is turning results in higher measurement efficiency and accuracy. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of a testing device provided in an embodiment of the present invention.
[0017] Explanation of icon numbers: 100. Testing device; 1. Support base; 11. Suction cup; 12. Support block; 121. Slide groove; 2. Adjusting arm; 21. Slide plate; 22. First adjusting rod; 23. Second adjusting rod; 24. Third adjusting rod; 25. First locking pin; 26. Second locking pin; 27. Third locking pin; 3. Measuring mechanism; 31. Mounting frame; 311. Mounting groove; 32. Track detector; 33. Distance detector; 34. Level.
[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0021] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0022] This utility model proposes a vehicle turning radius measuring device.
[0023] Please see Figure 1 In one embodiment of this utility model, the measuring device includes a support base 1, an adjusting arm 2, and a measuring mechanism 3. The support base 1 can be installed on the hood of a vehicle and is located near the front outer steering wheel. The adjusting arm 2 is slidably disposed on the top of the support base 1. The measuring mechanism 3 is disposed on the top of the adjusting arm 2 and includes a trajectory detector 32 and a distance detector 33. The distance detector 33 is disposed above the trajectory detector 32, and both the trajectory detector 32 and the distance detector 33 are located above the central axis of the front outer steering wheel. The trajectory detector 32 is used to measure the movement trajectory of the front outer steering wheel when the vehicle is turning, and the distance detector 33 is used to measure the movement distance of the front outer steering wheel.
[0024] This utility model discloses a vehicle turning radius measuring device. Before testing, the entire device is mounted on the hood of the vehicle under test via a support base 1. The position of the adjusting arm 2 on the support base 1 is adjusted to initially adjust the position of the measuring mechanism 3, allowing the trajectory detector 32 and distance detector 33 to be initially aligned with the center axis of the outer front steering wheel. The position of the measuring mechanism 3 is then further adjusted via the adjusting arm 2 to achieve higher alignment accuracy between the trajectory detector 32, distance detector 33, and the center axis of the outer front steering wheel. During testing, the vehicle's steering wheel is turned to its limit towards the inner front steering wheel. As the vehicle moves, the trajectory detector 32 accurately measures the movement trajectory of the outer front steering wheel, and simultaneously, the distance detector 33 accurately measures the movement distance. The vehicle's turning radius is then calculated based on the movement trajectory and distance. Therefore, when measuring the vehicle's turning radius using this device, only one person is needed to control the vehicle's turning, reducing manual labor intensity. Furthermore, the trajectory detector 32 and distance detector 33 can measure the movement trajectory and distance of the outer front steering wheel simultaneously with the vehicle's turning, resulting in higher measurement efficiency and accuracy.
[0025] It should be noted that the vehicle turning radius calculated based on the movement trajectory and distance can be calculated manually or by an external processor. Specifically, the trajectory detector 32 and distance detector 33 transmit the detected movement trajectory and distance to the external processor. The vehicle turning radius can then be calculated manually based on this trajectory and distance, or the external processor can directly calculate the turning radius. The selection of the processor, the interaction method between the trajectory detector 32 and distance detector 33 and the processor, and the processor's calculation method can all be implemented using existing technologies, and will not be elaborated upon here. The external processor can be a computer, mobile phone, etc.
[0026] Furthermore, the trajectory detector 32 is a gyroscope, and the distance detector 33 is a GPS receiver.
[0027] In one embodiment, the support base 1 includes a suction cup 11 and a support block 12. An adjusting arm 2 is slidably disposed on the top of the support block 12, and the suction cup 11 is disposed on the bottom of the support block 12 with its suction surface facing away from the support block 12. The suction cup 11 can be adsorbed onto the hood of a vehicle. Understandably, the support base 1, including the suction cup 11 and the support block 12, utilizes the negative pressure adsorption principle through the suction cup 11 to quickly and firmly adsorb and fix the entire measuring device onto the hood of the vehicle. It is also easy to remove after testing, improving the ease of installation, disassembly, and portability of the testing device 100.
[0028] In one embodiment, there are multiple support blocks 12, with one end of each support block 12 connected to form a connection point. The other ends of the support blocks 12 are spaced apart around a connecting rod, so that any two adjacent support blocks 12 are set at an angle. Each support block 12 has a suction cup 11 at its bottom, and an adjusting arm 2 is slidably mounted on the top of one of the support blocks 12. Understandably, the multiple support blocks 12 are distributed at an angle, and each support block 12 is attached to the top surface of the vehicle hood by suction cups 11 at its bottom. This multi-point support prevents the testing device 100 from shaking, thereby improving the stability of the entire testing device 100 when the vehicle is turning. Furthermore, because the multiple support blocks 12 are spread out at an angle, the overall coverage area is larger, allowing for flexible adaptation to vehicle hoods of different widths, curvatures, or local flatness, thus improving versatility.
[0029] Preferably, there are three support blocks 12 and three suction cups 11. The three support blocks 12 are arranged in a triangular pattern, which has strong stability and a simple structure, so that the weight of the entire testing device 100 is within a suitable range and avoids damage to the vehicle's hood.
[0030] In one embodiment, a groove 121 is provided on the top of the support block 12, and the extending direction of the groove 121 is consistent with the extending direction of the corresponding support block 12. A sliding plate 21 is connected to the bottom of the adjusting arm 2, and a slider that can extend into and slide in the groove 121 is provided at the bottom of the sliding plate 21. Understandably, by providing a groove 121 on the top of the support block 12 and a slider that can extend into and slide in the groove 121 at the bottom of the sliding plate 21, the groove 121 and the slider form a guiding structure, precisely limiting the movement direction of the adjusting arm 2, making adjustment simpler.
[0031] In one embodiment, the adjusting arm 2 includes a first adjusting rod 22, a second adjusting rod 23, and a third adjusting rod 24, which are hinged sequentially from top to bottom. The measuring mechanism 3 is disposed at the top of the first adjusting rod 22, and the bottom of the third adjusting rod 24 is hinged to the top of the slide plate 21. Understandably, the sequentially hinged first adjusting rod 22, second adjusting rod 23, and third adjusting rod 24 allow for adjustment of the height and horizontal direction of the measuring mechanism 3, providing better adjustment flexibility and enabling more precise alignment of the trajectory detector 32 and distance detector 33 to the measurement position directly above the center axis of the front outer steering wheel.
[0032] In one embodiment, the first adjusting rod 22 is hinged to the second adjusting rod 23 via a first locking pin 25. The bottom of the first adjusting rod 22 and the top of the second adjusting rod 23 are respectively provided with two first hinge ears, and the first locking pin 25 is rotatably inserted through the two first hinge ears. The second adjusting rod 23 is hinged to the third adjusting rod 24 via a second locking pin 26. The bottom of the second adjusting rod 23 and the top of the third adjusting rod 24 are respectively provided with two second hinge ears, and the second locking pin 26 is rotatably inserted through the two second hinge ears. The third adjusting rod 24 is hinged to the slide plate 21 via a third locking pin 27. The bottom of the third adjusting rod 24 and the top of the slide plate 21 are respectively provided with two third hinge ears, and the third locking pin 27 is rotatably inserted through the two third hinge ears.
[0033] Understandably, after adjustment, the first locking pin 25 can lock the two first hinge ears to prevent relative rotation between the first adjusting rod 22 and the second adjusting rod 23. The second locking pin 26 can lock the two second hinge ears to prevent relative rotation between the second adjusting rod 23 and the third adjusting rod 24. The third locking pin 27 can lock the two third hinge ears to prevent relative rotation between the third adjusting rod 24 and the sliding plate 21. Therefore, after the positions of the first adjusting rod 22, the second adjusting rod 23, and the third adjusting rod 24 are adjusted, the first locking pin 25, the second locking pin 26, and the third locking pin 27 can fix the posture of the adjusting arm 2, preventing changes in the posture of the adjusting arm 2 due to vibration when the vehicle turns, thus avoiding the offset between the trajectory detector 32 and the distance detector 33 and the center axis of the front outer steering wheel, thereby ensuring the measurement accuracy during the measurement process.
[0034] In one embodiment, the first locking pin 25, the second locking pin 26, and the third locking pin 27 all extend in a horizontal direction, and the extension direction of the first locking pin 25 is perpendicular to the extension direction of the second locking pin 26, while the extension direction of the second locking pin 26 is consistent with the extension direction of the third locking pin 27.
[0035] Understandably, by rotating the third adjusting rod 24 relative to the slide plate 21, the heights of the first adjusting rod 22 and the second adjusting rod 23 can be adjusted. Then, by rotating the second adjusting rod 23 relative to the third adjusting rod 24, the horizontal position of the first adjusting rod 22 and the measuring mechanism 3 can be adjusted, facilitating the alignment of the track detector and distance detector 33 with the central axis of the front outer steering wheel. Afterward, by rotating the first adjusting rod 22 relative to the second adjusting rod 23, the horizontality and position of the measuring mechanism 3 can be finely adjusted to ensure measurement accuracy. Since the extension direction of the first locking pin 25 is perpendicular to the extension direction of the second locking pin 26, the first adjusting rod 22 and the second adjusting rod 23 are used to adjust the position of the measuring mechanism 3 in different horizontal directions. For example, the first adjusting rod 22 is mainly used to adjust the front-to-back position, and the second adjusting rod 23 is mainly used to adjust the left-to-right position.
[0036] Understandably, since the top surface of the vehicle's hood is not horizontal, the measuring mechanism 3 can be adjusted to a horizontal position by the cooperation of the first adjusting rod 22, the second adjusting rod 23, and the third adjusting rod 24.
[0037] In one embodiment, the measuring mechanism 3 further includes a mounting frame 31 connected to the top of the adjusting arm 2. The mounting frame 31 forms a mounting groove 311 with openings on its sides. The trajectory detector 32 is mounted within the mounting groove 311, and the distance detector 33 is positioned on top of the mounting frame 31 and above the trajectory detector 32. Understandably, by positioning the mounting frame 31 on top of the adjusting arm 2, the mounting frame 31 forms multiple mounting areas. By mounting the trajectory detector 32 within the mounting groove 311, with the wiring harness of the trajectory detector 32 extending through the opening to connect to an external processor, and by positioning the distance detector 33 on top of the mounting frame 31 and directly above the trajectory detector 32, the trajectory detector 32 and the distance detector 33 are separated from each other, preventing interference and ensuring measurement accuracy.
[0038] In one embodiment, the measuring mechanism 3 further includes a level 34, which is positioned above the distance detector 33. Understandably, by providing the level 34, when adjusting the measuring mechanism 3, it is possible to visually determine whether the entire measuring mechanism 3 has been adjusted to a horizontal position, facilitating timely correction and ensuring measurement accuracy.
[0039] It should be noted that the level 34 can be a bubble level 34 as in the prior art.
[0040] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made under the technical concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A vehicle turning radius measuring device, characterized in that, include: A support base that can be mounted on the hood of the vehicle and near the front outer steering wheel; An adjusting arm is slidably disposed on the top of the support base; A measuring mechanism is provided on the top of the adjusting arm. The measuring mechanism includes a trajectory detector and a distance detector. The distance detector is located above the trajectory detector, and both the trajectory detector and the distance detector are located above the central axis of the front outer steering wheel. The trajectory detector is used to measure the movement trajectory of the front outer steering wheel when the vehicle turns, and the distance detector is used to measure the movement distance of the front outer steering wheel.
2. The vehicle turning radius measuring device as described in claim 1, characterized in that, The support base includes a suction cup and a support block. The adjusting arm is slidably disposed on the top of the support block, and the suction cup is disposed on the bottom of the support block with the suction surface facing away from the support block. The suction cup can be attached to the hood of the vehicle.
3. The vehicle turning radius measuring device as described in claim 2, characterized in that, The number of support blocks is multiple, with one end of each support block connected to form a connection position, and the other ends of the support blocks are distributed at intervals around the connection position so that any two adjacent support blocks are set at an angle. Each support block has a suction cup at its bottom, and the adjusting arm is slidably set on the top of one of the support blocks.
4. The vehicle turning radius measuring device as described in claim 2, characterized in that, The top of the support block is provided with a sliding groove, and the extension direction of the sliding groove is consistent with the extension direction of the corresponding support block. The bottom of the adjusting arm is connected to a sliding plate, and the bottom of the sliding plate is provided with a slider that can extend into the sliding groove and slide in cooperation with the sliding groove.
5. The vehicle turning radius measuring device as described in claim 4, characterized in that, The adjusting arm includes a first adjusting rod, a second adjusting rod, and a third adjusting rod that are hinged together from top to bottom. The measuring mechanism is located at the top of the first adjusting rod, and the bottom of the third adjusting rod is hinged to the top of the slide plate.
6. The vehicle turning radius measuring device as described in claim 5, characterized in that, The first adjusting rod is hinged to the second adjusting rod by a first locking pin. The bottom of the first adjusting rod and the top of the second adjusting rod are respectively provided with two first hinge ears. The first locking pin is rotatably passed through the two first hinge ears. The second adjusting rod is hinged to the third adjusting rod via a second locking pin. The bottom of the second adjusting rod and the top of the third adjusting rod are respectively provided with two second hinge ears, and the second locking pin is rotatably passed through the two second hinge ears. The third adjusting rod is hinged to the slide plate via a third locking pin. The bottom of the third adjusting rod and the top of the slide plate are respectively provided with two third hinge ears, and the third locking pin is rotatably inserted through the two third hinge ears.
7. The vehicle turning radius measuring device as described in claim 6, characterized in that, The first locking pin, the second locking pin, and the third locking pin all extend in a horizontal direction, and the extension direction of the first locking pin is perpendicular to the extension direction of the second locking pin, while the extension direction of the second locking pin is consistent with the extension direction of the third locking pin.
8. The vehicle turning radius measuring device as described in any one of claims 1 to 7, characterized in that, The measuring mechanism also includes a mounting frame connected to the top of the adjusting arm. The mounting frame forms a mounting groove with an opening on the side. The trajectory detector is installed in the mounting groove, and the distance detector is located at the top of the mounting frame and above the trajectory detector.
9. The vehicle turning radius measuring device as described in any one of claims 1 to 7, characterized in that, The trajectory detector is a gyroscope, and the distance detector is a GPS receiver.
10. The vehicle turning radius measuring device as described in any one of claims 1 to 7, characterized in that, The measuring mechanism also includes a level, which is positioned above the distance detector.