A road surface quality detection device

Abstract

The present invention discloses a road pavement quality detection device, which uses a motor as a power source. Its rotating shaft is connected to a pressure mechanism, and precise pressure is achieved through the threaded cooperation between the rotating shaft and the pressure cylinder. The pressure plate at the end of the pressure cylinder can evenly disperse the pressure. One end of the support leg is connected to the motor housing, and the other end is provided with a roller. The roller is retracted and extended by a connecting mechanism composed of a telescopic mechanism and a steel wire rope. The support leg provides stable support during detection, and the roller is easy to transfer during movement. The four support legs are evenly distributed to ensure stability. The blades of the cleaning mechanism rotate with the rotating shaft to blow away impurities on the road surface. In addition, the blade rotation diameter is reasonably designed to avoid interference between components, and the thread length is equal to ensure stable movement of the pressure cylinder. The device solves the problems of inconvenient movement and unstable detection of traditional detection devices, and can efficiently and accurately detect the compaction degree of road pavement, thereby improving detection efficiency and data reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of road detection equipment, and in particular to a highway pavement quality detection device. Background Art

[0002] As an important infrastructure for transportation, the quality of the road surface is directly related to driving safety, comfort and the service life of the road. Quality inspection of road surfaces is a key means to ensure that roads have good performance. Among them, the inspection of road surface compaction is particularly important. Road surfaces with insufficient compaction are prone to deformation, subsidence, cracks and other defects under the repeated action of vehicle loads, which not only reduces the flatness of the road and affects driving comfort, but also shortens the road maintenance cycle and increases maintenance costs. By accurately testing the compaction degree, problems in the road construction or use process can be discovered in time, and corresponding measures can be taken to rectify them to ensure the quality and safety of the road.

[0003] Traditional road pavement compaction detection devices have many shortcomings in actual use. In terms of mobility, many traditional devices lack a convenient mobile mechanism and require a lot of manpower and material resources for transportation. They are inefficient when performing large-area detection or multiple detection points. After arriving at the detection area, it is difficult to fix the device quickly and stably, which causes shaking during the detection process, affecting the accuracy of the detection data. In addition, traditional devices have relatively simple functions and usually do not have the function of automatically cleaning road impurities. Impurities will interfere with the detection results and make the detection data unable to truly reflect the compaction of the road surface. Moreover, the linkage between the various components of the traditional device is poor, the operation is cumbersome, and multiple steps of manual adjustment and control are required, which increases the time and labor costs of the detection. Summary of the invention

[0004] The present invention aims to provide a road surface quality detection device to solve the problems of inconvenient movement, unstable detection, single function and complicated operation of traditional detection devices.

[0005] The present invention is achieved through the following technical solutions: A road surface quality detection device comprises a motor and a support leg arranged on the motor, wherein a pressure mechanism is arranged at the outer end of the motor's rotating shaft, one end of the support leg is movably connected to the motor housing, and the other end of the support leg is arranged with a roller, and a telescopic mechanism for retracting or lowering the roller is arranged on the support leg, and when the pressure mechanism applies pressure to the road surface, the telescopic mechanism can be driven to retract the roller.

[0006] Preferably, the outer edge of the rotating shaft is provided with an external thread, and the pressure mechanism includes a pressure cylinder sleeved on the rotating shaft, the inner wall of the pressure cylinder is provided with an internal thread matching the external thread, and the outer wall of the pressure cylinder is provided with a connecting head, the connecting head is rotatably connected to the end of a support rod, and the other end of the support rod is movably connected to the support foot; when the rotating shaft rotates, it can drive the pressure cylinder to move toward or away from the road surface.

[0007] Preferably, one end of the support rod is movably connected to the connecting head, the support leg is an internal hollow structure and is provided with an opening on the support leg, the other end of the support rod passes through the opening to the inside of the support leg, and the support rod is hinged to the support leg; the telescopic mechanism includes a fixed plate and a movable plate arranged inside the support leg, the movable plate is connected to a roller, a spring connecting the fixed plate and the movable plate is provided between the fixed plate and the movable plate, and when the spring is in an initial state, the roller extends out of the interior of the support leg and contacts the ground; a connecting mechanism is provided between the movable plate and the end of the support rod located inside the support leg.

[0008] Preferably, the connecting mechanism includes a pull rope and an opening provided at the end of the support rod, a connecting rod is provided between the inner walls of the opening, an opening for the pull rope to pass through is provided on the fixed plate, and a pull rope connecting the connecting rod and the fixed plate is provided between the connecting rod and the fixed plate; the pull rope can retract the roller into the interior of the support leg.

[0009] Preferably, a cleaning mechanism is further provided on the rotating shaft, and the cleaning mechanism comprises blades, and the blades are fixedly sleeved on the outer edge of the rotating shaft. When the rotating shaft rotates, the blades can blow away impurities on the road surface.

[0010] Preferably, the number of the supporting legs is 4, and the 4 supporting legs are evenly spaced and connected to the housing of the motor.

[0011] Preferably, the rotation diameter of the blades is less than or equal to the outer diameter of the pressing cylinder.

[0012] Preferably, the pull rope is made of steel wire material.

[0013] Preferably, a pressure plate is fixedly connected to one end of the pressure cylinder close to the road surface.

[0014] Preferably, the length of the external thread along the axial direction of the rotating shaft is equal to the length of the internal thread along the axial direction of the pressing cylinder.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: the present invention is equipped with rollers, which can be easily retracted and lowered through a telescopic mechanism, so that the device can be moved flexibly and efficiently. After reaching the detection area, it can quickly switch to a stable detection state to avoid sliding during detection and ensure data accuracy. The ends of the support legs are movably connected to the motor housing, and cooperate with the connecting rod and the support rod between the support legs, which greatly enhances the stability of the device during detection and can operate stably even on complex roads. The pressure mechanism uses the threaded cooperation of the rotating shaft and the pressure cylinder to accurately control the pressure process and ensure reliable detection results. The blades of the cleaning mechanism rotate with the rotating shaft, which can effectively blow away impurities on the road surface, prevent impurities from interfering with detection, and improve detection accuracy. The various mechanisms are closely linked to reduce manual operation steps, greatly improve detection efficiency, and reduce time and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A top view of the present invention; Figure 3 It is a schematic diagram of the installation of the pressing cylinder, the supporting rod and the pressing plate of the present invention; Figure 4 It is a schematic diagram of the support leg structure of the present invention; Figure 5 for Figure 1 A magnified image of point A; Figure 6 for Figure 1 The enlarged view of point B; Figure 7 for Figure 3 Enlarged view of point C.

[0017] The reference numerals represent: 10, motor, 11, connection block, 20, support foot, 201, opening, 21, presser foot, 22, roller, 23, moving plate, 24, fixed plate, 25, spring, 26, pull rope, 30, rotating shaft, 31, blade, 32, external thread, 33, pressure cylinder, 331, internal thread, 34, connecting head, 35, support rod, 351, connecting rod, 352, opening, 36, pressure plate. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiment of the present invention clearer, the technical scheme of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. The schematic implementation mode of the present invention and its description are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual research and development stage.

[0019] Embodiment 1: like Figures 1 to 5 As shown, a highway pavement quality detection device includes a motor 10 and a support leg 20 arranged on the motor 10, the outer end of the rotating shaft 30 of the motor 10 is provided with a pressure mechanism, one end of the support leg 20 is movably connected to the housing of the motor 10, and the other end of the support leg 20 is provided with a roller 22, and the support leg 20 is provided with a telescopic mechanism for retracting or lowering the roller 22. When the pressure mechanism applies pressure to the road surface, it can drive the telescopic mechanism to retract the roller 22.

[0020] The highway pavement quality detection device is intended to solve the problems of inconvenient movement, unstable detection, single function and cumbersome operation of traditional detection devices. The motor 10 serves as a power source to provide power for the operation of the entire device. One end of the support leg 20 is movably connected to the motor 10 housing (or connected to the connecting block 11 on the motor 10 housing), and the other end is provided with a roller 22, and the support leg 20 is equipped with a telescopic mechanism to achieve device movement and stable support. The pressure mechanism is connected to the outer end of the motor 10 shaft 30, and pressure is applied to the road surface by cooperating with the thread of the shaft 30.

[0021] During operation, when heading to the detection area, the roller 22 extends out of the support foot 20, and the operator can easily push the device to move, thereby improving the detection efficiency. After reaching the detection point, the motor 10 is started, and the motor 10 shaft 30 rotates to drive the pressure cylinder 33 to move downward along the thread. At the same time, the pressure cylinder 33 drives the support foot 20 through the support rod 35, so that the telescopic mechanism retracts the roller 22, and the support foot 20 directly contacts the ground and cooperates with the pressure foot 21 to increase the friction force and ensure the stability of the device. The pressure cylinder 33 continues to press down, and the pressure plate 36 at its end applies pressure to the road surface. The parameters related to the compaction degree of the road surface can be measured through the matching detection components. During the operation of the motor 10, the blade 31 fixed on the shaft 30 rotates to blow away impurities on the road surface to prevent impurities from affecting the detection results. This solution effectively solves the drawbacks of traditional devices. In practical applications, it greatly improves the detection efficiency, ensures the accuracy of the detection data, reduces the manpower and time costs, and the device structure is stable and can adapt to a variety of complex detection environments. like Figure 6As shown, in this embodiment, the outer edge of the rotating shaft 30 is provided with an external thread 32, and the pressure-applying mechanism includes a pressure cylinder 33 sleeved on the rotating shaft 30, and the inner wall of the pressure cylinder 33 is provided with an internal thread 331 matching the external thread 32, and the outer wall of the pressure cylinder 33 is provided with a connecting head 34, and the connecting head 34 is rotatably connected to the end of a support rod 35, and the other end of the support rod 35 is movably connected to the support leg 20; when the rotating shaft 30 rotates, it can drive the pressure cylinder 33 to move toward or away from the road surface.

[0022] During operation, the motor 10 drives the rotating shaft 30 to rotate. Due to the threaded fit, the pressure cylinder 33 moves smoothly along the axial direction to achieve accurate pressure on the road surface. The support rod 35 transmits the action of the pressure cylinder 33 to the support foot 20 to ensure stable pressure application, effectively improve the pressure application accuracy and device stability, and ensure the reliability of the detection data. The road surface is deformed under the action of pressure, and the parameters related to the pressure will be collected in real time through sensors in the pressure mechanism (such as pressure sensors, displacement sensors, etc.). These sensors convert physical signals into electrical signals and transmit them to the data processing unit. The data processing unit calculates the compaction value of the road surface based on the pre-set algorithm and the collected pressure and deformation data, thereby completing the detection of the compaction degree of the road surface.

[0023] In this embodiment, one end of the support rod 35 is movably connected to the connecting head 34, the support leg 20 is an internal hollow structure and an opening 201 is provided on the support leg 20, the other end of the support rod 35 passes through the opening 201 to the inside of the support leg 20, and the support rod 35 is hinged to the support leg 20; the telescopic mechanism includes a fixed plate 24 and a movable plate 23 arranged inside the support leg 20, the movable plate 23 is connected to the roller 22, and a spring 25 connecting the fixed plate 24 and the movable plate 23 is provided between the fixed plate 24 and the movable plate 23. When the spring 25 is in the initial state, the roller 22 extends out of the inside of the support leg 20 and contacts the ground; a connecting mechanism is provided between the movable plate 23 and the end of the support rod 35 located inside the support leg 20.

[0024] During testing, the support rod 35 moves, pulls the moving plate 23 through the connecting mechanism, and compresses the spring 25 to retract the roller 22; when the movement is completed and ready for testing, the support rod 35 moves in the opposite direction, and the spring 25 rebounds to extend the roller 22. This structure realizes the automatic retraction and extension of the roller 22, ensuring the smooth switching of the device's movement and testing states.

[0025] like Figure 7 As shown, in this embodiment, the connecting mechanism includes a pull rope 26 and an opening 352 arranged at the end of the support rod 35, a connecting rod 351 is arranged between the inner walls of the opening 352, an opening 201 for the pull rope 26 to pass through is arranged on the fixed plate 24, and a pull rope 26 connecting the connecting rod 351 and the fixed plate 24 is arranged between the connecting rod 351 and the fixed plate 24; the pull rope 26 can retract the roller 22 into the interior of the support leg 20.

[0026] The core component of the connection mechanism is the pull rope 26, one end of which is connected to the connecting rod 351 at the end of the support rod 35, and the other end passes through the opening 201 of the fixed plate 24 and is connected to the movable plate 23. When the support rod 35 moves, it drives the connecting rod 351 to force the pull rope 26, pulls the movable plate 23, and realizes the retraction and extension of the roller 22. The pull rope 26 is made of steel wire material, which is high in strength and durable, ensuring the stable operation of the connection mechanism, reliably realizing the retraction and extension function of the roller 22, and improving the practicality of the device.

[0027] In this embodiment, a cleaning mechanism is also provided on the rotating shaft 30, and the cleaning mechanism includes a blade 31, which is fixedly sleeved on the outer edge of the rotating shaft 30. When the rotating shaft 30 rotates, the blade 31 can blow away impurities on the road surface. When the motor 10 drives the rotating shaft 30 to rotate, the blade 31 rotates at a high speed, and the generated wind force can blow impurities such as dust and debris on the road surface away from the detection area. This design effectively avoids impurities interfering with the detection, improves the reliability of the detection data, and ensures that the detection results truly reflect the quality of the road surface.

[0028] In this embodiment, there are four legs 20, which are evenly spaced and connected to the housing of the motor 10. This allows the device to be more evenly stressed during support, and to maintain a stable posture regardless of whether the device is tested on a flat or slightly undulating road surface, thereby reducing detection errors caused by device shaking and providing a reliable support foundation for accurate detection.

[0029] In actual use, the device is first moved to the detection area, at which time the roller 22 extends out of the support leg 20, which is easy to push. After arriving, the motor 10 is started, and the motor 10 drives the rotating shaft 30 to rotate, driving the pressure cylinder 33 to move downward along the axial direction due to the threaded fit. At the same time, the support rod 35 moves, and the moving plate 23 is pulled through the connecting mechanism composed of the steel wire rope 26. The compression spring 25 retracts the roller 22, so that the support leg 20 is firmly supported. The pressure plate 36 at the end of the pressure cylinder 33 contacts the road surface, evenly distributing the pressure for pressure. At the same time, the blade 31 fixed on the rotating shaft 30 rotates at a high speed to blow away impurities on the road surface to avoid interference with the detection. During the detection process, the four support legs 20 evenly distributed on the outer shell of the motor 10 ensure the stability of the device, and the rotation diameter of the blade 31 is reasonable to avoid interference with other components. After the detection is completed, the motor 10 is reversed, the support rod 35 moves in the opposite direction, and the spring 25 rebounds to extend the roller 22, which is convenient for moving the device to the next detection point.

[0030] One end of the support rod 35 is connected to the pressure cylinder 33, and the other end is connected to the support leg 20. When the device is detecting, it forms a stable triangular structure with the support leg 20 and the housing of the motor 10. When the road surface conditions are complicated, the support rod 35 can effectively disperse the external force on the device and enhance the overall stability. At the same time, the length and connection position of the support rod 35 limit the range of motion of the support leg 20 and its maximum opening angle, ensuring that the support leg 20 provides support within a reasonable angle, avoiding the normal operation of the device and the detection accuracy being affected by the excessive opening or closing of the support leg 20.

[0031] Embodiment 2: On the basis of Example 1, the rotation diameter of the blade 31 is less than or equal to the outer diameter of the pressing cylinder 33. The rotation diameter of the blade 31 is less than or equal to the outer diameter of the pressing cylinder 33, so that during the operation of the device, it can be ensured that there is no collision or interference between the blade 31 and the pressing cylinder 33 and other components. Reasonable size design ensures that the device has a compact structure, which not only meets the functional requirements of each component, but also facilitates the transportation and operation of the device.

[0032] The support rod 35 is movably connected to the pressure cylinder 33 and the support leg 20. When the device needs to be stored after use, the operator can change the relative position of the support leg 20 and the housing of the motor 10 by adjusting the angle of the support rod 35. The support leg 20 can move closer to the housing of the motor 10 with the movable connection point as the axis, making the entire device smaller, convenient for storage and transportation, and greatly improving the portability and storage convenience of the device.

[0033] In this embodiment, the pull rope 26 is made of steel wire. Steel wire has the characteristics of high strength, wear resistance, corrosion resistance, etc. When the support rod 35 drives the pull rope 26 to realize the retraction and extension of the roller 22, the steel wire pull rope 26 can withstand a large pulling force without breaking easily, which effectively ensures the stable operation of the telescopic mechanism, prolongs the service life of the connecting mechanism, and reduces the maintenance cost and the probability of failure.

[0034] Embodiment 3: In this embodiment, the end of the pressure cylinder 33 close to the road surface is fixedly connected with a pressure plate 36. When the pressure cylinder 33 applies pressure to the road surface, the pressure plate 36 can evenly distribute the pressure to the road surface, avoiding detection errors caused by local pressure concentration, so that the detection results can more accurately reflect the overall compaction of the road surface.

[0035] In this embodiment, the length of the external thread 32 along the axis of the rotating shaft 30 is equal to the length of the internal thread 331 along the axis of the pressure cylinder 33. This ensures that the movement stroke of the pressure cylinder 33 on the rotating shaft 30 is reasonable, which can not only meet the pressure requirements when detecting different road conditions, but also ensure the stability of the pressure cylinder 33 during the entire movement process, prevent the pressure cylinder 33 from being disengaged or moving unsmoothly due to the mismatch of the thread length, and ensure the normal operation of the pressure mechanism.

[0036] The device of the present invention is very suitable for detecting the compaction degree of highway pavement. The blades 31 of the cleaning mechanism can blow away impurities such as dust and debris on the pavement when the motor 10 drives the rotating shaft 30 to rotate, so as to avoid interference with the detection, ensure that the detection data is reliable, and truly reflect the quality of the pavement; the support feet 20 evenly spaced and connected to the housing of the motor 10 enable the device to maintain a stable posture on different pavements, reduce detection errors, and provide reliable support for accurate detection; the rotating diameter of the blade 31 is reasonably designed to avoid collision and interference with components such as the pressure cylinder 33, ensuring that the device has a compact structure and is easy to transport and operate; the pull rope 26 made of steel wire material can withstand a large pulling force and is not easy to break when the roller 22 is retracted and extended, ensuring the stable operation of the telescopic mechanism; the pressure plate 36 increases the contact area of ​​the pressure, so that the pressure is evenly dispersed, avoiding detection errors caused by local pressure concentration; and the thread length of the pressure cylinder 33 is equal to that of the rotating shaft 30, ensuring that the moving stroke of the pressure cylinder 33 is reasonable and stable, so that the pressure mechanism can work normally, and comprehensively guarantee the efficiency and accuracy of highway pavement quality detection.

[0037] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them; although the present disclosure has been described in detail with reference to the aforementioned embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present disclosure. The following points need to be explained: In the accompanying drawings of the embodiments of the present invention, only the structures involved in the embodiments of the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the features in the same embodiment and different embodiments of the present invention can be combined with each other. The above is only an exemplary implementation of the present invention, and is not used to limit the scope of protection of the present invention. The scope of protection of the present invention is determined by the attached claims.

Claims

1. A road surface quality detection device, comprising a motor (10) and a support foot (20) arranged on the motor (10), characterized in that: A pressure mechanism is provided at the outer end of the rotating shaft (30) of the motor (10); one end of the support leg (20) is movably connected to the housing of the motor (10); a roller (22) is provided at the other end of the support leg (20); and a telescopic mechanism for retracting or lowering the roller (22) is provided on the support leg (20); when the pressure mechanism applies pressure to the road surface, the telescopic mechanism can be driven to retract the roller (22).

2. A road surface quality detection device according to claim 1, characterized in that: The outer edge of the rotating shaft (30) is provided with an external thread (32), and the pressure-applying mechanism comprises a pressure cylinder (33) sleeved on the rotating shaft (30), the inner wall of the pressure cylinder (33) is provided with an internal thread (331) matching the external thread (32), and a connecting head (34) is provided on the outer wall of the pressure cylinder (33), the connecting head (34) is rotatably connected to the end of a support rod (35), and the other end of the support rod (35) is movably connected to the support foot (20); when the rotating shaft (30) rotates, it can drive the pressure cylinder (33) to move towards or away from the road surface.

3. A road surface quality detection device according to claim 2, characterized in that: One end of the support rod (35) is movably connected to the connecting head (34); the support foot (20) is an internally hollow structure and an opening (201) is provided on the support foot (20); the other end of the support rod (35) passes through the opening (201) to the inside of the support foot (20); the support rod (35) is hinged to the support foot (20); the telescopic mechanism comprises a fixed plate (24) and a movable plate (23) arranged inside the support foot (20); the movable plate (23) is connected to a roller (22); a spring (25) connecting the fixed plate (24) and the movable plate (23) is provided between the fixed plate (24) and the movable plate (23); when the spring (25) is in an initial state, the roller (22) extends out of the inside of the support foot (20) and contacts the ground; a connecting mechanism is provided between the movable plate (23) and the end of the support rod (35) located inside the support foot (20).

4. A road surface quality detection device according to claim 3, characterized in that: The connection mechanism comprises a pull rope (26) and an opening (352) provided at the end of the support rod (35); a connecting rod (351) is provided between the inner walls of the opening (352); an opening (201) for the pull rope (26) to pass through is provided on the fixing plate (24); a pull rope (26) connecting the connecting rod (351) and the fixing plate (24) is provided between the connecting rod (351) and the fixing plate (24); the pull rope (26) can retract the roller (22) into the interior of the support leg (20).

5. A road surface quality detection device according to claim 4, characterized in that: A cleaning mechanism is also provided on the rotating shaft (30), the cleaning mechanism comprising blades (31), the blades (31) being fixedly sleeved on the outer edge of the rotating shaft (30), and when the rotating shaft (30) rotates, the blades (31) can blow away impurities on the road surface.

6. A road surface quality detection device according to claim 3, characterized in that: The number of the supporting legs (20) is four, and the four supporting legs (20) are evenly spaced and connected to the outer shell of the motor (10).

7. A road surface quality detection device according to claim 5, characterized in that: The rotation diameter of the blade (31) is smaller than or equal to the outer diameter of the pressing cylinder (33).

8. A road surface quality detection device according to claim 4, characterized in that: The pull rope (26) is made of steel wire material.

9. A road surface quality detection device according to claim 7, characterized in that: A pressure plate (36) is fixedly connected to one end of the pressure cylinder (33) close to the road surface.

10. A road surface quality detection device according to any one of claims 2 to 9, characterized in that: The length of the external thread (32) along the axial direction of the rotating shaft (30) is equal to the length of the internal thread (331) along the axial direction of the pressing cylinder (33).

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