A device for detecting road surface skid resistance

Abstract

This utility model relates to the field of road surface testing technology and provides a road surface anti-skid testing device, including a vehicle body with movable wheels at the bottom. A translation component is located at the center of the bottom of the vehicle body, and the translation component includes a translation seat slidably disposed at the bottom of the vehicle body, with the sliding direction of the translation seat parallel to the forward direction of the vehicle body. A lifting component is disposed on the translation seat, and a lifting seat is slidably disposed on the lifting component, with the sliding direction of the lifting seat being vertical. A detection component is disposed on the lifting seat. The detection component includes a laser texture scanner, a pressure sensor, a temperature sensor, and a humidity sensor. The laser texture scanner is disposed on the front side of the lifting seat via a swing arm assembly. A handle is disposed at the rear of the vehicle body in the forward direction, and a control component is disposed on the vehicle body diagonally below the handle. A storage cavity is opened in the middle of the vehicle body for storing auxiliary testing tools. This utility model can achieve rapid and stable testing of road surface anti-skid performance, and is both portable and easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of road surface testing technology, specifically to a road surface skid resistance testing device. Background Technology

[0002] Road surface anti-skid performance is crucial for road safety, as good anti-skid performance can effectively reduce the risk of vehicle accidents caused by slippery road surfaces. Road surface anti-skid performance testing quantitatively assesses the road surface's ability to resist vehicle slippage, ensuring driving safety. This testing mainly focuses on two levels: macro-texture and micro-texture. Macro-texture is generally measured using a laser texture scanner to measure the road surface's unevenness, generating average cross-sectional depth or estimated texture depth to reflect the road surface's drainage capacity and the mechanical locking effect between the tire and the road surface. Micro-texture is generally assessed by testing road surface friction to evaluate the road surface's anti-skid properties.

[0003] Traditional testing methods have limitations. Professional testing vehicles are expensive and complex to operate, while handheld devices are unstable and inefficient, making it difficult to meet the needs for convenient, economical, and diversified testing.

[0004] Therefore, in order to address the above problems, a road surface skid resistance testing device is proposed. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by developing a road surface skid resistance testing device. This invention enables rapid and stable testing of road surface skid resistance performance, and is both portable and easy to operate.

[0006] To achieve the above objectives, this utility model employs the following technical solution: A road surface anti-skid detection device includes a vehicle body with movable wheels at the bottom. A translation component is located at the center of the bottom of the vehicle body. The translation component includes a translation seat, which is slidably mounted on the bottom of the vehicle body, with the sliding direction of the translation seat parallel to the forward direction of the vehicle body. A lifting component is mounted on the translation seat, and a lifting seat is slidably mounted on the lifting component, with the sliding direction of the lifting seat being vertical. A detection component is mounted on the lifting seat. The detection component includes a laser texture scanner, a pressure sensor, a temperature sensor, and a humidity sensor. The laser texture scanner is mounted on the front side of the lifting seat via a swing arm assembly. A handle is located at the rear of the vehicle body in the forward direction. A control component is located on the vehicle body diagonally below the handle. A storage cavity is opened in the middle of the vehicle body for placing auxiliary detection tools.

[0007] Preferably, the translation component also includes a straight rail, which is set at the bottom of the vehicle body and the length direction of the straight rail is parallel to the forward direction of the vehicle body. A translation seat is slidably set on the straight rail, and the translation seat is threadedly connected to a lead screw. The lead screw is rotatably set at the bottom of the vehicle body and the axis of the lead screw is parallel to the length direction of the straight rail. One end of the lead screw is connected to the output end of the translation force component, which is set on the vehicle body.

[0008] Preferably, the lifting assembly includes a guide rod disposed at the bottom of the translation seat. The axis of the guide rod is perpendicular to the length direction of the straight rail. The lifting seat is slidably connected to the guide rod. The lifting seat is connected to the output end of the lifting power component. The lifting power component is disposed on the translation seat, and the axis of the output end of the lifting power component is parallel to the axis of the guide rod.

[0009] Preferably, temperature sensors and humidity sensors are installed on both sides of the lifting platform, and several pressure sensors are installed at the bottom of the lifting platform, with the pressure sensors arranged in an array.

[0010] Preferably, the swing arm assembly includes a rotating arm and a swing arm power component. One end of the rotating arm is rotatably mounted on the center of the lifting seat via a rotating shaft. The axis of the rotating shaft is perpendicular to the axis of the guide rod. A laser texture scanner is mounted on the end of the rotating arm away from the rotating shaft. A groove is formed on the rotating arm along its length. The swing arm power component is mounted on the lifting seat. The movement direction of the output end of the swing arm power component is horizontal and perpendicular to the forward direction of the vehicle body. A slider is rotatably mounted on the output end of the swing arm power component. The slider is slidably mounted in the groove and can drive the rotating arm to rotate around the axis of the rotating shaft.

[0011] Preferably, the control components include a display screen, a microprocessor, and a memory. The microprocessor is connected to the display screen, the memory, the laser texture scanner, various pressure sensors, temperature sensors, humidity sensors, translational motion components, lifting power components, and swing arm power components, and is used to record and analyze detection data and control the operation of the device.

[0012] Preferably, the vehicle body is configured as an upper frame and a lower frame, with the space between the upper frame and the lower frame serving as a storage cavity. The upper frame is equipped with handles and control components, and insert rods are evenly arranged around the bottom of the upper frame. A translation component is installed at the bottom of the lower frame, and slots are provided on the upper side of the lower frame corresponding to the positions of the insert rods. The insert rods can be inserted into the slots, and several internal connecting holes are evenly opened along the length of the insert rods. External connecting holes are opened through the slots corresponding to the positions of the internal connecting holes, and the external connecting holes can be connected to the internal connecting holes at different positions via pins.

[0013] Preferably, side baffles are retractable on both sides of the lower frame in the forward direction to prevent tools from falling out.

[0014] The effects provided in the utility model description are merely those of the embodiments, and not all the effects of the utility model. The above technical solution has the following advantages: 1. This utility model, by setting up translation and lifting components to drive the detection component to move, enables the laser texture scanner, temperature sensor and humidity sensor of the detection component to be closer to the road surface for detection, thereby improving the accuracy of detection and avoiding manual operation, thus reducing labor intensity. 2. By setting up a swing arm assembly, this utility model enables the laser texture scanner to detect road surfaces at different locations, mainly the front, left front, and right front sides, thus improving the comprehensiveness of road surface detection. Furthermore, by setting up anti-collision blocks, the laser texture scanner is prevented from colliding with the vehicle body, resulting in better safety. 3. This utility model, by setting a storage cavity on the vehicle body, can store other auxiliary tools used for testing, avoiding the need for inspectors to hold tools by hand and reducing the labor intensity of staff. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 2 ; Figure 3 This is a schematic diagram of the swing arm assembly according to an embodiment of the present utility model; Figure 4 This is a schematic diagram showing the position of the detection component in an embodiment of the present invention.

[0017] In the diagram: 1. Vehicle body; 2. Moving wheels; 3. Translation assembly; 4. Lifting assembly; 5. Lifting seat; 6. Detection assembly; 7. Swing arm assembly; 8. Handle; 9. Display screen; 10. Storage cavity; 11. Upper frame; 12. Lower frame; 13. Insert rod; 14. Slot; 15. Inner connecting hole; 16. Outer connecting hole; 17. Side baffle; 31. Translation seat; 32. Straight rail; 33. Lead screw; 34. Translational force component; 41. Guide rod; 42. Lifting power component; 61. Laser texture scanner; 62. Pressure sensor; 63. Temperature sensor; 64. Humidity sensor; 71. Rotating arm; 72. Swing arm power component; 73. Rotating shaft; 74. Slide groove; 75. Slider; 76. Anti-collision block. Detailed Implementation

[0018] 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 protection scope of the present utility model.

[0019] like Figures 1-4As shown, this utility model provides a technical solution: A road surface anti-skid detection device includes a vehicle body 1, which is made of a combination of lightweight high-strength aluminum alloy and carbon fiber composite material to reduce overall weight. Movable wheels 2 are installed on both sides of the bottom of the vehicle body 1. The movable wheels 2 are commonly available silent and shock-absorbing omnidirectional wheels with brakes. A translation component 3 is movably installed at the center of the bottom of the vehicle body 1. The translation component 3 includes a translation seat 31, which is slidably mounted on the bottom of the vehicle body 1. The sliding direction of the translation seat 31 is parallel to the forward direction of the vehicle body 1 to adapt to changes in road surface undulations. For example, when the vehicle body 1 travels uphill, the translation seat 31 can slide to the rear of the vehicle body 1; conversely, on downhill sections, it can slide forward, ensuring that the translation seat 31 is always in the most stable position. The optimal contact position is as follows: a lifting assembly 4 is installed on the translation seat 31, and a lifting seat 5 is slidably installed on the lifting assembly 4. The sliding direction of the lifting seat 5 is vertical. A detection assembly 6 is installed on the lifting seat 5. The detection assembly 6 includes a laser texture scanner 61, a pressure sensor 62, a temperature sensor 63, and a humidity sensor 64. The laser texture scanner 61 is installed on the front side of the lifting seat 5 via a swing arm assembly 7. A handle 8 is installed above the rear end of the vehicle body 1 in the forward direction. A control assembly is installed on the vehicle body 1 on the side of the handle 8 at an angle below it. This assembly is used to control the movement of the detection assembly 6 and to receive and process the detection data of the detection assembly 6. A storage cavity 10 is opened in the middle of the vehicle body 1 to place auxiliary detection tools and reduce the labor intensity of the staff.

[0020] In an optional embodiment, the translation component 3 further includes a straight rail 32 disposed at the bottom of the vehicle body 1, with the length direction of the straight rail 32 parallel to the forward direction of the vehicle body 1. At least two parallel straight rails 32 are provided, and the cross-section of the straight rail 32 is T-shaped. A translation seat 31 is slidably disposed on the straight rail 32. The translation seat 31 is threadedly connected to a lead screw 33, which is rotatably disposed at the bottom of the vehicle body 1. The axis of the lead screw 33 is parallel to the length direction of the straight rail 32. One end of the lead screw 33 is connected to the output end of a translational force component 34. The translational force component 34 is a motor disposed on the vehicle body 1 and is used to drive the translation seat 31 to move.

[0021] In an optional embodiment, the lifting assembly 4 includes a guide rod 41, which is disposed at the bottom of the translation seat 31. The axis of the guide rod 41 is perpendicular to the length direction of the straight rail 32. At least two guide rods 41 are provided that are parallel to each other. The lifting seat 5 is slidably connected to the guide rod 41. The upper side of the lifting seat 5 is connected to the output end of the lifting power component 42. The output end of the lifting power component 42 is used to drive the lifting seat 5 to move up and down. The lifting power component 42 is an electric push rod, which is disposed at the bottom of the translation seat 31, and the axis of the output end of the lifting power component 42 is parallel to the axis of the guide rod 41.

[0022] In an optional embodiment, a temperature sensor 63 and a humidity sensor 64 are respectively installed on both sides of the lifting seat 5. The temperature sensor 63 is a non-contact infrared temperature sensor. The height of the detection end of the humidity sensor 64 is the same as the height of the bottom of the lifting seat 5. Several pressure sensors 62 are installed at the bottom of the lifting seat 5, and the pressure sensors 62 are arranged in an array to directly contact the road surface. When the vehicle body 1 moves on the road surface, the pressure sensors 62 can stick to the road surface, thereby accurately detecting the friction between the detection end and the road surface. During the movement of the vehicle body 1, the array of pressure sensors 62 detects the pressure distribution on the contact surface in real time. Since the magnitude of the friction is related to the pressure distribution on the contact surface, the properties of the contact surface, and the relative motion state, by analyzing the pressure data detected by the array of pressure sensors 62, combined with the movement speed and acceleration information of the vehicle body 1, and using relevant algorithm models, the magnitude of the friction between the detection end and the road surface can be calculated, thereby reflecting the anti-skid performance of the road surface.

[0023] In an optional embodiment, the control component includes a display screen 9, a microprocessor, and a memory. The microprocessor is a single-chip microcomputer and is connected to the display screen 9, the memory, the laser texture scanner 61, various pressure sensors 62, a temperature sensor 63, a humidity sensor 64, a translational motion component 34, a lifting power component 42, and a swing arm power component 72. It is used to record and analyze detection data and control the operation of the device. It also includes a speed sensor and an acceleration sensor, both connected to the microprocessor. The display screen 9 is a commercially available touch-sensitive display screen 9. The memory is used to store the detection data. The laser texture scanner 61 is an AMES9500 laser texture scanner 61. The detection end of the pressure sensor 62 uses a metal connector. More preferably, a diamond patch is provided at the bottom of the detection end of the pressure sensor 62 to reduce wear on the pressure sensor 62 when rubbing against the road surface, thus improving economic efficiency. This utility model only protects the structure and positional relationship and does not limit the control system and algorithm. It is sufficient for those skilled in the art to implement it, so it will not be described in detail here.

[0024] In an optional embodiment, a road dynamic rotary friction coefficient measuring instrument is installed at the position where the pressure sensor 62 array is located at the bottom of the lifting seat 5. The road dynamic rotary friction coefficient measuring instrument is connected to a microprocessor, which provides better measurement results, but is more expensive and less economical.

[0025] In an optional embodiment, a battery is also included, disposed on the vehicle body 1, for powering the control components and various power components.

[0026] In an optional embodiment, the swing arm assembly 7 includes a rotating arm 71 and a swing arm power component 72. One end of the rotating arm 71 is rotatably mounted on the middle of the lifting seat 5 via a rotating shaft 73. The axis of the rotating shaft 73 is perpendicular to the axis of the guide rod 41. A laser texture scanner 61 is mounted on the end of the rotating arm 71 away from the rotating shaft 73. The height of the detection end of the laser texture scanner 61 is not lower than the height of the bottom of the lifting seat 5 to avoid friction between the detection end of the laser texture scanner 61 and the ground. Preferably, the height of the detection end of the laser texture scanner 61 is slightly higher than the height of the bottom of the lifting seat 5 to make the detection end as close to the ground as possible, thereby improving the accuracy of the detection. A groove 74 is provided along the length of the rotating arm 71. The swing arm power component 72 is an electric actuator or a rodless cylinder, which is mounted on the lifting seat 5. The moving direction of the output end of the swing arm power component 72 is horizontal and perpendicular to the forward direction of the vehicle body 1. A slider 75 is rotatably mounted at the output end of the swing arm power component 72. The slider 75 is slidably mounted in the groove 74 and can drive the rotating arm 71 to rotate around the axis of the rotating shaft 73.

[0027] In an optional embodiment, the swing arm assembly 7 further includes anti-collision blocks 76 disposed on both sides of the lifting seat 5. The surface of the anti-collision blocks is made of rubber material and is used to contact and block the rotating arm 71 to prevent the rotating arm 71 from colliding with the vehicle body 1 when it drives the laser texture scanner 61 to move, thereby improving the service life of the device. Preferably, the anti-collision blocks 76 are contact sensors connected to a microprocessor, which can output a signal when they touch the rotating arm 71, so that the swing arm power component 72 stops moving, which improves practicality.

[0028] In an optional embodiment, the vehicle body 1 is configured as an upper frame 11 and a lower frame 12. The height of the upper frame 11 relative to the lower frame 12 is adjustable to accommodate operators of different heights for convenient control of the display screen 9 and propulsion of the vehicle body 1. The space between the upper frame 11 and the lower frame 12 is configured as a storage cavity 10 for storing spare batteries, sensor calibration tools, cleaning tools, etc. The upper frame 11 is equipped with a handle 8 and control components. Insert rods 13 are provided at the four corners of the bottom of the upper frame 11. The bottom of the lower frame 12 is used to install translation components. 3. A slot 14 is provided on the upper side of the lower frame 12 corresponding to the position of the insertion rod 13. The insertion rod 13 can be inserted into the slot 14, and several internal connecting holes 15 are evenly opened on the insertion rod 13 along its length. An external connecting hole 16 is opened through the slot 14 corresponding to the position of the internal connecting hole 15. The external connecting hole 16 can be connected to the internal connecting hole 15 at different positions through a pin to change the volume of the storage cavity 10. This makes it easy to adjust the space of the storage cavity 10 as needed. When the device is not in use, it can also reduce the space occupied by the device, which is very practical.

[0029] In an optional embodiment, side baffles 17 are telescopically provided on both sides of the lower frame 12 in the forward direction to prevent tools from falling out. Preferably, a rubber or nylon pad is provided on the surface of the side baffle 17, and the rubber or nylon pad and the groove of the lower frame 12 for accommodating the side baffle 17 are interference fit, so that there is a damping feeling caused by friction between the surface of the side baffle 17 and the lower frame 12. Under no external force, the relative position between the side baffle 17 and the lower frame 12 is fixed. However, when there is an external force and the magnitude of the external force is greater than the friction between the side baffle 17 and the lower frame 12, the side baffle 17 can move up and down to change the height of the blockage and adapt to the relative position between the upper frame 11 and the lower frame 12, which improves practicality.

[0030] Working principle: When in use, the operator pushes the device to the road surface to be inspected and moves the vehicle body 1. At the same time, the power components of the device are activated, so that the detection component 6 contacts the road surface and begins to detect. The sensors monitor the data in real time, and the microprocessor processes and analyzes the data, displays the results on the display screen 9, and stores them in the memory. The operator controls the swing arm component 7 to detect the road surface at different locations. After the detection is completed, the detection component 6 is lifted away from the road surface, and then the position of the vehicle body 1 is fixed. The analyzed data is then viewed.

[0031] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more unless otherwise explicitly specified.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A road surface skid resistance detection device, comprising a vehicle body (1), characterized in that, The bottom of the vehicle body (1) is provided with a moving wheel (2), and the center of the bottom of the vehicle body (1) is provided with a translation component (3). The translation component (3) includes a translation seat (31). The translation seat (31) is slidably disposed at the bottom of the vehicle body (1), and the sliding direction of the translation seat (31) is parallel to the forward direction of the vehicle body (1). A lifting component (4) is provided on the translation seat (31), and a lifting seat (5) is slidably disposed on the lifting component (4). The sliding direction of the lifting seat (5) is vertically disposed, and a detection component (6) is provided on the lifting seat (5). The detection component (6) includes a laser texture scanner (61), a pressure sensor (62), a temperature sensor (63), and a humidity sensor (64); A handle (8) is provided at the rear of the vehicle body (1) in the direction of travel. A control component is provided on the vehicle body (1) on the lower side of the handle (8). A storage cavity (10) is opened in the middle of the vehicle body (1).

2. The road surface skid resistance testing device according to claim 1, characterized in that: The translation component (3) also includes a straight rail (32), which is set at the bottom of the vehicle body (1), and the length direction of the straight rail (32) is parallel to the forward direction of the vehicle body (1). A translation seat (31) is slidably set on the straight rail (32), and the translation seat (31) is threadedly connected to a lead screw (33). The lead screw (33) is rotatably set at the bottom of the vehicle body (1), and the axis of the lead screw (33) is parallel to the length direction of the straight rail (32). One end of the lead screw (33) is connected to the output end of the translation force component (34), and the translation force component (34) is set on the vehicle body (1).

3. The road surface skid resistance testing device according to claim 2, characterized in that: The lifting assembly (4) includes a guide rod (41) which is disposed at the bottom of the translation seat (31). The axis of the guide rod (41) is perpendicular to the length direction of the straight rail (32). The lifting seat (5) is slidably connected to the guide rod (41). The lifting seat (5) is connected to the output end of the lifting power component (42). The lifting power component (42) is disposed on the translation seat (31), and the axis of the output end of the lifting power component (42) is parallel to the axis of the guide rod (41).

4. The road surface skid resistance testing device according to claim 3, characterized in that: Temperature sensor (63) and humidity sensor (64) are respectively installed on both sides of the lifting seat (5), and several pressure sensors (62) are installed at the bottom of the lifting seat (5), and the pressure sensors (62) are arranged in an array.

5. A road surface skid resistance testing device according to claim 4, characterized in that: The laser texture scanner (61) is mounted on the front side of the lifting seat (5) via a swing arm assembly (7). The swing arm assembly (7) includes a rotating arm (71) and a swing arm power component (72). One end of the rotating arm (71) is rotatably mounted on the middle of the lifting seat (5) via a rotating shaft (73). The axis of the rotating shaft (73) is perpendicular to the axis of the guide rod (41). The laser texture scanner (61) is mounted on the end of the rotating arm (71) away from the rotating shaft (73). A slide groove (74) is opened on the rotating arm (71) along its length. The swing arm power component (72) is mounted on the lifting seat (5). The moving direction of the output end of the swing arm power component (72) is horizontal and perpendicular to the forward direction of the vehicle body (1). A slider (75) is rotatably mounted on the output end of the swing arm power component (72). The slider (75) is slidably mounted in the slide groove (74) and can drive the rotating arm (71) to rotate around the axis of the rotating shaft (73).

6. The road surface skid resistance testing device according to claim 5, characterized in that: The control components include a display screen (9), a microprocessor, and a memory. The microprocessor is connected to the display screen (9), the memory, the laser texture scanner (61), various pressure sensors (62), temperature sensors (63), humidity sensors (64), translational force components (34), lifting force components (42), and swing arm force components (72) to record and analyze detection data and control the operation of the device.

7. The road surface skid resistance testing device according to claim 1, characterized in that: The vehicle body (1) is configured as an upper frame (11) and a lower frame (12). The space between the upper frame (11) and the lower frame (12) is a storage cavity (10). The upper frame (11) is equipped with a handle (8) and a control component. The bottom of the upper frame (11) is evenly equipped with insert rods (13). The bottom of the lower frame (12) is equipped with a translation component (3). The upper side of the lower frame (12) is equipped with a slot (14) corresponding to the position of the insert rod (13). The insert rod (13) can be inserted into the slot (14). Several internal connecting holes (15) are evenly opened on the insert rod (13) along its length direction. The outer side of the slot (14) is equipped with an external connecting hole (16) corresponding to the position of the internal connecting hole (15). The external connecting hole (16) can be connected to the internal connecting hole (15) at different positions through a pin.

8. A road surface skid resistance testing device according to claim 7, characterized in that: Side baffles (17) are telescopically installed on the upper side of the lower frame (12).

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