Friction detection device for detecting skid resistance of concrete pavement

Abstract

The utility model discloses a friction detection device for detecting the skid resistance of a concrete pavement, which relates to the technical field of road detection devices, and comprises a pendulum type friction coefficient tester, an automatic balance support leg and a cleaning component, wherein the cleaning assembly comprises a box body, a sweeping part and a spraying part, and a water storage bin and a mounting bin are arranged in the box body; according to the pendulum-type friction coefficient tester, the cleaning assembly is arranged, so that the influence of air friction force on the pendulum-type friction coefficient tester can be effectively reduced in the detection process, the accuracy of a measurement result is remarkably improved, meanwhile, the cleaning assembly is arranged on the pendulum-type friction coefficient tester, and meanwhile the cleaning assembly is arranged on the pendulum-type friction coefficient tester. In addition, water spraying can also simulate road surface states under different humidity conditions, so that the measurement result is closer to the actual use condition, and the pendulum type friction coefficient tester can be automatically balanced by arranging the automatic balance supporting legs, so that the detection accuracy is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to road detection device technical field, concretely is a kind of detection concrete pavement skid resistance friction detection device. BACKGROUND

[0002] The main purpose of road surface skid resistance detection is to assess whether the road can effectively prevent wheel skidding under wet or dry conditions, thereby ensuring the safety of vehicle travel. Through detection, potential road safety hazards can also be discovered and addressed in a timely manner, improving the overall performance of the road.

[0003] In the prior art, the pendulum friction coefficient tester often leads to measurement errors when detecting the road surface friction coefficient due to air friction and road surface conditions (such as dry or wet). It is difficult to accurately reflect the true skid resistance performance of the road surface. In addition, the lack of standardized water spraying operation also affects the consistency and comparability of the test. Therefore, the utility model aims to solve the problems of large error, insufficient accuracy and inconsistent test conditions in the prior art pendulum friction coefficient tester. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of detection concrete pavement skid resistance friction detection device, with the advantages of high accuracy and reduce error, to solve the problem of large error and insufficient accuracy.

[0005] To achieve high accuracy and reduce error, the utility model provides the following technical solutions: a kind of detection concrete pavement skid resistance friction detection device, including pendulum friction coefficient tester, further including automatic balance support foot and cleaning assembly left-right symmetrically installed at the left and right ends of pendulum friction coefficient tester, wherein: the cleaning assembly is installed on the bottom surface of the pendulum friction coefficient tester, the cleaning assembly includes box body, cleaning part and spraying part, the box body is respectively provided with water storage compartment and mounting compartment, wherein the spraying part and the cleaning part are installed in the mounting compartment, the spraying part and the cleaning part are connected by setting conduit, for cleaning ground when working;The automatic balance support foot includes mounting rod, driving mechanism and support leg, the mounting rod is symmetrically installed at the left and right ends of the pendulum friction coefficient tester, the lower end surface of the mounting rod is provided with shell, the driving mechanism is arranged in the box body and extends downward out of the box body, and the support leg is installed on the output end of the driving mechanism.

[0006] Preferably, the cleaning part comprises a motor, a driving shaft, a mounting block, a sleeve and a cleaning rod, the motor is installed in the mounting chamber, the driving shaft is installed at the output end of the motor, the bottom of the box body is provided with a through hole, the mounting block is installed at the bottom surface inside the box body and extends into the through hole, the sleeve is rotationally connected with the mounting block, the sleeve extends out of the through hole, and the cleaning rod is installed on the outer wall of the sleeve.

[0007] Preferably, the bottom surface of the cleaning rod is provided with bristles.

[0008] Preferably, the spraying part comprises a gear pump, a water inlet pipe and a connecting pipe, the gear pump is installed in the mounting chamber, the water inlet pipe is installed at the input end of the gear pump and extends into the water storage chamber through the mounting chamber, the connecting pipe is installed at the output end of the gear pump and extends into the sleeve through the mounting block, the bottom surface of the cleaning rod is provided with a spray opening, the inside of the cleaning rod is provided with a channel communicated with the spray opening, and the channel is connected with the sleeve.

[0009] Preferably, the upper end surface of the box body is provided with a water filling pipe communicated with the water storage chamber.

[0010] Preferably, the driving mechanism comprises a horizontal sensor, a controller and an electric telescopic rod, the horizontal sensor and the controller are both installed in the mounting chamber and electrically connected, the electric telescopic rod is installed in the shell, the electric telescopic rod is electrically connected with the controller, the output end of the electric telescopic rod extends downward through the shell, and the supporting leg is installed at the output end of the electric telescopic rod.

[0011] Preferably, the bottom surface of the supporting leg is semicircular.

[0012] Compared with the prior art, the utility model provides a friction detection device for detecting the skid resistance of concrete pavement, which has the following beneficial effects:

[0013] 1、 the friction detection device for detecting the skid resistance of concrete pavement, through setting up cleaning subassembly, can effectively reduce the influence of air friction to pendulum friction coefficient measuring instrument in the detection process, thereby significantly improve the accuracy of measurement result, simultaneously, water spraying can simulate the road surface state under different humidity conditions, make the measurement result more close to actual use situation, and through setting up automatic balance supporting leg, can automatically balance pendulum friction coefficient measuring instrument, thereby further improve the accuracy of detection.

[0014] 2、 through setting up motor drive cleaning rod rotation, thereby sweeps the ground, reduces the foreign matter on the ground and influences detection, thereby improves the accuracy of detection.

[0015] 3. By setting the gear pump, water inlet pipe, connecting pipe, channel and spout, can be in the process of cleaning at the same time for spraying, so as to further enhance the cleaning effect, and simulate different humidity ground.

[0016] 4. By setting the horizontal sensor, controller and electric telescopic rod, can automatically balance the pendulum friction coefficient tester, so as to further improve the accuracy of detection. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the schematic view of the external structure of the utility model;

[0018] Figure 2 It is the sectional view of the automatic balance support leg and cleaning assembly of the utility model;

[0019] Figure 3 It is the sectional view of the cleaning assembly of the utility model;

[0020] Figure 4 It is the schematic view of the cleaning assembly structure of the utility model;

[0021] Figure 5 It is the schematic view of the automatic balance support leg structure of the utility model;

[0022] Figure 6 It is the sectional view of the box body of the utility model.

[0023] In the drawing: 1, pendulum friction coefficient tester; 2, automatic balance support leg; 21, mounting rod; 211, shell; 22, driving mechanism; 221, horizontal sensor; 222, controller; 223, electric telescopic rod; 23, support leg; 3, cleaning assembly; 31, box body; 311, mounting bin; 312, water storage bin; 313, through hole; 314, water filling pipe; 32, cleaning part; 321, motor; 322, driving shaft; 323, mounting block; 324, sleeve; 325, cleaning rod; 326, spout; 327, channel; 328, brush; 33, spraying part; 331, gear pump; 332, water inlet pipe; 333, connecting pipe. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. Embodiment one

[0025] Please refer to Figures 1-6The utility model discloses a kind of friction detection devices for detecting concrete pavement skid resistance, including pendulum friction coefficient tester 1, further including automatic balance support foot 2 and cleaning assembly 3 that are symmetrically installed in the left and right ends of pendulum friction coefficient tester 1, wherein: the cleaning assembly 3 is installed in the bottom surface of pendulum friction coefficient tester 1, the cleaning assembly 3 includes box 31, cleaning part 32 and spraying part 33, water storage warehouse 312 and installation warehouse 311 are respectively equipped in the box 31, wherein the spraying part 33 and the cleaning part 32 are all installed in the installation warehouse 311, the spraying part 33 and the cleaning part 32 are connected by being provided with conduit, for cleaning ground when working;Automatic balance support foot 2 includes mounting rod 21, drive mechanism 22 and support leg 23, the mounting rod 21 is symmetrically installed in the left and right ends of pendulum friction coefficient tester 1, the lower end surface of the mounting rod 21 is equipped with shell 211, the drive mechanism 22 is set in the box 31 and downwardly extends the box 31, the support leg 23 is installed in the output end of the drive mechanism 22.

[0026] The above design can effectively reduce the influence of air friction on pendulum friction coefficient tester 1 during detection by setting cleaning assembly 3, thereby significantly improving the accuracy of measurement results, at the same time, water spraying can also simulate the road surface state under different humidity conditions, so that the measurement results are closer to actual use, and by setting automatic balance support foot 2, pendulum friction coefficient tester 1 can be automatically balanced, thereby further improving the accuracy of detection.

[0027] Please refer to Figures 1-4The cleaning part 32 comprises a motor 321, a driving shaft 322, a mounting block 323, a sleeve 324 and a cleaning rod 325. The motor 321 is installed in the mounting bin 311. The driving shaft 322 is installed at the output end of the motor 321. The bottom of the box body 31 is provided with a through hole 313. The mounting block 323 is installed at the bottom surface inside the box body 31 and extends into the through hole 313. The sleeve 324 is rotationally connected with the mounting block 323. The sleeve 324 extends out of the through hole 313. The cleaning rod 325 is installed at the outer wall of the sleeve 324. The bottom surface of the cleaning rod 325 is provided with bristles 328. The motor 321 is arranged to drive the cleaning rod 325 to rotate, so as to clean the ground, reduce the influence of foreign matters on the ground on detection, and improve the accuracy of detection. The spraying part 33 comprises a gear pump 331, a water inlet pipe 332 and a connecting pipe 333. The gear pump 331 is installed in the mounting bin 311. The water inlet pipe 332 is installed at the input end of the gear pump 331 and extends into the water storage bin 312 through the mounting bin 311. The connecting pipe 333 is installed at the output end of the gear pump 331 and extends into the sleeve 324 through the mounting block 323. The bottom surface of the cleaning rod 325 is provided with a spray opening 326. The inside of the cleaning rod 325 is provided with a channel 327 which is in communication with the spray opening 326. The channel 327 is connected with the sleeve 324. The gear pump 331, the water inlet pipe 332, the connecting pipe 333, the channel 327 and the spray opening 326 are arranged to spray while cleaning, so as to further improve the cleaning effect and simulate the ground with different humidity. The upper end surface of the box body 31 is provided with a water filling pipe 314 which is in communication with the water storage bin 312. Embodiment two

[0028] Based on the above embodiment one, please refer to Figure 1 , Figure 2 , Figure 4 The driving mechanism 22 comprises a horizontal sensor 221, a controller 222 and an electric telescopic rod 223. The horizontal sensor 221 and the controller 222 are both installed in the mounting bin 311 and electrically connected. The electric telescopic rod 223 is installed in the shell 211. The electric telescopic rod 223 is electrically connected with the controller 222. The output end of the electric telescopic rod 223 extends downward through the shell 211. The supporting leg 23 is installed at the output end of the electric telescopic rod 223. The horizontal sensor 221, the controller 222 and the electric telescopic rod 223 are arranged to automatically balance the pendulum friction coefficient tester 1, so as to further improve the accuracy of detection. The bottom surface of the supporting leg 23 is semicircular. The bottom surface of the supporting leg 23 is semicircular, so as to facilitate contact with the ground and reduce the influence of the concave-convex of the ground on balance.

[0029] The working principle and use process of the utility model:

[0030] Before use, please ensure that the friction detection device, including pendulum friction coefficient tester 1, automatic balance support foot 2 and cleaning assembly 3 are intact, all components have been correctly installed and connected, then, through the water injection pipe 314 on the upper end of the box body 31, add appropriate amount of clean water into the water storage compartment 312, ensure that the spraying part 33 has enough water source when working, and connect the power supply for the components that need power supply, such as motor 321, gear pump 331, level sensor 221, controller 222 and electric telescopic rod 223, and ensure the stability of the power supply;

[0031] When using, the pendulum friction coefficient tester 1 is stably placed on the concrete pavement to be detected, the installation rod 21 of the automatic balance support foot 2 is aligned with the left and right ends of the pendulum friction coefficient tester 1 and fixed, then, the controller 222 power is turned on, the level sensor 221 starts working, the inclination angle of the pendulum friction coefficient tester 1 is detected, according to the feedback of the level sensor 221, the controller 222 will control the electric telescopic rod 223 to stretch and retract, so as to adjust the height of the support foot 23, so that the pendulum friction coefficient tester 1 reaches the horizontal state, the switch is pressed to start the motor 321, the motor 321 starts working, the driving shaft 322 drives the cleaning rod 325 to rotate, the brush 328 cleans the ground, at the same time, the gear pump 331 starts working, water is pumped from the water storage compartment 312, through the connecting pipe 333, the channel 327 and the nozzle 326, clean water is sprayed to the ground below the cleaning rod 325, the cleaning assembly 3 sprays while cleaning, effectively removes the ground foreign matter and simulates the road surface state of different humidity, after the cleaning assembly 3 completes the work, the pendulum friction coefficient tester 1 is started to measure the friction coefficient, according to the indication of the pendulum friction coefficient tester 1, the measurement result is recorded and saved, after completing the detection, the motor 321 and the gear pump 331 of the cleaning assembly 3 are closed first, then the controller 222 of the automatic balance support foot 2 and the power supply of the pendulum friction coefficient tester 1 are closed.

Claims

1. A friction detection device for detecting the anti-skid property of a concrete pavement, comprising a pendulum friction coefficient measuring instrument (1), characterized in that: It also includes automatic balancing support feet (2) and a cleaning assembly (3) symmetrically installed at the left and right ends of the pendulum friction coefficient tester (1), wherein: The cleaning assembly (3) is installed on the bottom surface of the pendulum friction coefficient tester (1), and the cleaning assembly (3) includes a box body (31), a cleaning portion (32) and a spraying portion (33), wherein the box body (31) is provided with a water storage tank (312) and an installation tank (311), wherein the spraying portion (33) and the cleaning portion (32) are both installed in the installation tank (311), and the spraying portion (33) and the cleaning portion (32) are connected by a conduit and are used to clean the ground during operation; The automatic balancing support foot (2) comprises a mounting rod (21), a driving mechanism (22) and a support foot (23); the mounting rod (21) is symmetrically mounted on the left and right ends of the pendulum-type friction coefficient tester (1); a housing (211) is provided on the lower end surface of the mounting rod (21); the driving mechanism (22) is arranged in the box body (31) and extends downward from the box body (31); and the support foot (23) is mounted on the output end of the driving mechanism (22).

2. A friction detection device for detecting the anti-skid property of a concrete pavement according to claim 1, characterized in that: The cleaning portion (32) includes a motor (321), a drive shaft (322), a mounting block (323), a sleeve (324) and a cleaning rod (325). The motor (321) is mounted in the mounting chamber (311), the drive shaft (322) is mounted at the output end of the motor (321), a through hole (313) is provided at the bottom of the box body (31), the mounting block (323) is mounted on the bottom surface of the box body (31) and extends into the through hole (313), the sleeve (324) is rotatably connected to the mounting block (323), the sleeve (324) extends outward from the through hole (313), and the cleaning rod (325) is mounted on the outer wall of the sleeve (324).

3. The friction detection device for detecting the anti-skid property of a concrete pavement according to claim 2, characterized in that: The bottom surface of the cleaning rod (325) is provided with bristles (328).

4. The friction detection device for detecting the anti-skid property of a concrete pavement according to claim 2, characterized in that: The spraying portion (33) comprises a gear pump (331), a water inlet pipe (332) and a connecting pipe (333). The gear pump (331) is installed in the installation chamber (311). The water inlet pipe (332) is installed at the input end of the gear pump (331) and passes through the installation chamber (311) to extend into the water storage chamber (312). The connecting pipe (333) is installed at the output end of the gear pump (331) and passes through the installation block (323) to extend into the sleeve (324). A nozzle (326) is provided on the bottom surface of the cleaning rod (325), and a channel (327) is provided inside the cleaning rod that is in communication with the nozzle (326). The channel (327) is connected to the inside of the sleeve (324).

5. The friction detection device for detecting the anti-skid property of a concrete pavement according to claim 1, characterized in that: A water injection pipe (314) communicating with the water storage tank (312) is installed on the upper end surface of the box body (31).

6. The friction detection device for detecting the anti-skid property of a concrete pavement according to claim 1, characterized in that: The driving mechanism (22) comprises a level sensor (221), a controller (222), and an electric telescopic rod (223); the level sensor (221) and the controller (222) are both installed in the installation compartment (311) and are electrically connected to each other; the electric telescopic rod (223) is installed in the housing (211); the electric telescopic rod (223) is electrically connected to the controller (222); an output end of the electric telescopic rod (223) passes through the housing (211) and extends downward; and the support leg (23) is installed at the output end of the electric telescopic rod (223).

7. The friction detection device for detecting the anti-skid property of a concrete pavement according to claim 6, characterized in that: The bottom surface of the support foot (23) is semicircular.

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