Anti-skid performance detection device for counterweight pressurization of cement concrete pavement

Abstract

The utility model discloses a cement concrete pavement counterweight pressurization anti-skid performance detection device, which comprises a base box, a counterweight pressurization device, a counterweight pressurization device, a counterweight pressurization device, a counterweight pressurization device and a counterweight pressurization device, the pendulum type friction coefficient tester is arranged at the top of the base box; the beneficial effects of the utility model are that: by setting up the electric heating wire and the centrifugal fan, the device can provide hot air heating for the test point, so that the actual conditions of the road surface under different temperature conditions can be simulated; the infrared thermometer is used for testing the temperature of a heating point, the friction coefficient under different temperature conditions can be accurately controlled and monitored, the device can simulate the friction performance under the conditions of rainwater, humidity or other liquid on the road surface through the water spraying function of the water pump and the spray head, the test is closer to the actual use environment, and the test efficiency is improved. The evaluation of the anti-slide performance of the cement concrete pavement is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of cement concrete pavement detection, in particular to a weight-boosted anti-skid performance detection device for a cement concrete pavement. Background Art

[0002] The road surface anti-skid performance test is to evaluate the ability of the road surface to provide resistance or friction to vehicles under different conditions (such as wet, dry, temperature changes, etc.). This test is usually used to evaluate the safety and reliability of roads. At present, most of the road surface anti-skid performance test devices only perform anti-skid performance tests on the road surface, and cannot perform anti-skid performance tests on the road surface at different temperatures and humidities according to different scenarios, making the test unable to be closer to the actual use environment, which is not conducive to evaluating the anti-skid performance of cement concrete pavements. For this reason, we provide a cement concrete pavement counterweight pressurized anti-skid performance test device. Utility Model Content

[0003] The utility model aims to provide a device for detecting the anti-skid performance of a cement concrete pavement with counterweight and pressure, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a device for detecting the anti-skid performance of a cement concrete pavement with counterweight and pressure increase, comprising:

[0005] A base box, wherein a leveling assembly is provided on the outer side of the base box;

[0006] A pendulum-type friction coefficient tester, which is placed on the top of the base box;

[0007] A support base, the support base is placed on the top of the base box, and a reciprocating nozzle is provided in the middle of the support base for changing the temperature and humidity at the detection position;

[0008] A bellows, the bellows is placed inside the base box, and an electric heating wire is arranged inside the bellows;

[0009] A water tank is placed inside the base box to increase the counterweight. A semiconductor refrigeration sheet is installed on the top of the water tank to cool the inside of the water tank.

[0010] Preferably, the leveling assembly comprises a support plate, the support plate is fixedly connected to the outside of the base box, and the end of the support plate is threadedly connected with a leveling bolt.

[0011] Preferably, a driving motor is fixedly connected to the top of the supporting base, a rotating ring is fixedly connected to the output end of the driving motor, and the nozzle is fixedly connected to the rotating ring.

[0012] Preferably, an infrared thermometer is fixedly connected to one side of the rotating ring, an end of the infrared thermometer is electrically connected to a display, and the display is fixedly connected to the supporting base.

[0013] Preferably, a water pump is fixedly connected to one side of the water tank, the input end of the water pump is connected to the water tank, the output end of the water pump is fixedly connected to a solenoid valve via a water pipe, and the solenoid valve is fixedly connected to the base box.

[0014] Preferably, a centrifugal fan is installed on one side of the bellows, the air outlet of the bellows is connected to the solenoid valve through an air duct, and the solenoid valve is connected to the nozzle.

[0015] Preferably, the base box is provided with a ventilation port on one side of the centrifugal fan.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: by setting up electric heating wires and centrifugal fans, the device can provide hot air heating to the test points, so that the actual conditions of the road surface under different temperature conditions can be simulated, and the temperature of the heating points is tested by an infrared thermometer, so that the friction coefficient under different temperature conditions can be accurately controlled and monitored; through the water spraying function of the water pump and the nozzle, the device can simulate the friction performance under rain, humidity or other liquid conditions on the road surface, so that the test is closer to the actual use environment, which is helpful to evaluate the anti-skid performance of cement concrete pavement; by adjusting the water temperature through semiconductor refrigeration plates, the device can simulate the friction performance under low temperature conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the solenoid valve of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure inside the bellows of the utility model;

[0020] Figure 4 This is a schematic diagram of the position structure of the water pump of the utility model.

[0021] In the figure: 1. base box; 2. support plate; 3. leveling bolt; 4. pendulum friction coefficient tester; 5. solenoid valve; 6. support base; 7. display; 8. rotating ring; 9. nozzle; 10. infrared thermometer; 11. drive motor; 12. bellows; 13. centrifugal fan; 14. heating wire; 15. ventilation port; 16. semiconductor cooling plate; 17. water tank; 18. water pump. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 , 2 As shown in Figures 3 and 4, the utility model provides a technical solution: a device for detecting the anti-skid performance of a cement concrete pavement with counterweight and pressure, comprising: a leveling assembly is arranged on the outer side of a base box 1; a pendulum friction coefficient tester 4 is fixedly mounted on the top of the base box 1, and the pendulum friction coefficient tester 4 comprises a column, a release switch, a swing head and an indication system, and the column comprises a lifting mechanism, a guide rod and an instrument handle, which are used to lift and fix the position of the swing head. The release switch is mounted on the cantilever, and is used to maintain the horizontal position of the swing arm and control the release of the pendulum. The swing head is composed of a fastening handle, a swing shaft, a steering knuckle and a bearing, and its main function is to connect the pendulum and fix it in a specific position to ensure that it can swing freely in the swing plane. The indication system is composed of a pointer, a felt ring, a flange, a fastening nut and a dial. The pointer can directly indicate the friction coefficient value, thereby providing a direct reading. When the swing arm is freely released at a fixed height, its potential energy will be converted into the kinetic energy of the rubber sheet at the end of the swing arm when it slides on the road surface. This kinetic energy will be gradually consumed due to friction between the rubber sheet and the road surface until the swing arm stops swinging. The amount of this kinetic energy loss is equivalent to the work done by the rubber sheet to overcome the friction of the road surface during the sliding process; the support base 6 is installed on the top of the base box 1 by bolts, and a reciprocating nozzle 9 is provided in the middle of the support base 6 to change the temperature and humidity of the detection position; the bellows 12 is fixedly installed inside the base box 1, and a heating wire 14 is provided inside the bellows 12; the water tank 17 is fixedly installed inside the base box 1 to increase the counterweight, and a semiconductor cooling sheet 16 is installed on the top of the water tank 17, and a plurality of metal pipes are installed inside the water tank 17. The cooling end of the semiconductor cooling sheet 16 is connected to the cooling rod to cool the inside of the water tank 17.

[0024] It should be noted that the utility model uses a leveling component to cooperate with a level ruler to level the base box 1. After the adjustment is completed, the overall height of the pendulum friction coefficient tester 4 is adjusted so that the pendulum head can rub against the ground. The test point can be heated by hot air through the electric heating wire 14 and the centrifugal fan 13 through the nozzle 9 as needed, and the corresponding heating point is detected by the infrared thermometer 10 to perform temperature testing, so that it can detect different temperatures of the test point. Water can be sprayed on the test point through the water pump 18 and the nozzle 9 to test the friction system when there is water. The water temperature is adjusted by the semiconductor refrigeration sheet 16 to observe its temperature at low temperatures. The friction coefficient changes at different temperatures. By setting up electric heating wires and centrifugal fans, the device can provide hot air heating to the test points, so that the actual conditions of the road surface under different temperature conditions can be simulated. The temperature test of the heating points is carried out by infrared thermometers, which can accurately control and monitor the friction coefficient under different temperature conditions. Through the water spraying function of the water pump and the nozzle, the device can simulate the friction performance of the road surface under rain, humidity or other liquids, making the test closer to the actual use environment, which is helpful to evaluate the anti-skid performance of cement concrete pavement. By adjusting the water temperature through semiconductor refrigeration sheets, the device can simulate the friction performance under low temperature conditions.

[0025] See also Figure 1 , 2 As shown, the leveling assembly includes a support plate 2 , which is fixed to the outside of the base box 1 , and a leveling bolt 3 is threadedly connected to the end of the support plate 2 .

[0026] It should be noted that the support plate 2 of the utility model is fixed to the outside of the base box 1, and its function is to provide stable support for the entire device. The support plate is a solid metal plate with a certain thickness. The end of the support plate 2 is threadedly connected with a leveling bolt 3, which can contact the ground. By rotating the leveling bolt, the height of the bottom support plate 2 can be adjusted, thereby changing the level of the entire device. The leveling bolt 3 can be rotated as needed to keep the device level.

[0027] See also Figure 1 , 2 As shown, a driving motor 11 is fixedly connected to the top of the supporting base 6, a rotating ring 8 is fixedly connected to the output end of the driving motor 11, a nozzle 9 is fixedly connected to the rotating ring 8, an infrared thermometer 10 is fixedly connected to one side of the rotating ring 8, an end of the infrared thermometer 10 is electrically connected to a display 7, and the display 7 is fixedly connected to the supporting base 6.

[0028] It should be noted that the drive motor 11 of the utility model is fixedly connected to the top of the support base 6. The drive motor 11 reciprocates under the action of the controller, thereby driving the nozzle to swing back and forth through rotation. The nozzle 9 is also fixedly connected to the rotating ring 8. The rotation of the rotating ring 8 drives the nozzle to swing back and forth. The nozzle can be used to spray water or blow air to simulate the humidity or dryness of the cement concrete pavement under different conditions. The infrared thermometer 10 is fixedly connected to one side of the rotating ring 8 and is used to measure the temperature of the test point. The rotation of the drive motor 11 drives the nozzle to swing back and forth, which can realize the function of spraying water or blowing air. At the same time, the infrared thermometer 10 can accurately measure the temperature of the test point and provide important temperature data for the evaluation of the friction coefficient. The display 7 can display the measured temperature results, allowing the user to understand the temperature of the test point in real time.

[0029] See also Figure 1 , 2 As shown, a water pump 18 is fixedly connected to one side of the water tank 17, the input end of the water pump 18 is connected to the water tank 17, the output end of the water pump 18 is fixedly connected to the solenoid valve 5 through a water pipe, the solenoid valve 5 is fixedly connected to the base box 1, a centrifugal fan 13 is installed on one side of the bellows 12, the air outlet of the bellows 12 is connected to the solenoid valve 5 through an air duct, the solenoid valve 5 is connected to the nozzle 9, and a ventilation port 15 is provided on one side of the centrifugal fan 13 of the base box 1.

[0030] It should be noted that the base box 1 of the utility model is provided with a corresponding power supply inside, and the water tank 17 is filled with water, which can increase the overall weight so that the setting can be counterweighted and pressurized. The semiconductor refrigeration plate 16 is needed to cool the internal water, and the water is sprayed to the designated position through the water pump 18 and the nozzle 9. By setting the centrifugal fan 13 and the heating wire 14, the heated water can be blown to the designated place to heat the designated place.

[0031] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0033] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

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

Claims

1. A device for detecting the anti-skid performance of a cement concrete pavement with counterweight and pressure, characterized in that: include: A base box (1), wherein a leveling component is provided on the outer side of the base box (1); A pendulum-type friction coefficient tester (4), which is placed on the top of the base box (1); A support base (6), the support base (6) is placed on the top of the base box (1), and a reciprocating nozzle (9) is provided in the middle of the support base (6) for changing the temperature and humidity at the detection position; A bellows (12), the bellows (12) being placed inside the base box (1), and an electric heating wire (14) being provided inside the bellows (12); A water tank (17) is placed inside the base box (1) to increase the counterweight. A semiconductor cooling plate (16) is installed on the top of the water tank (17) to cool the inside of the water tank (17).

2. The anti-skid performance detection device of cement concrete pavement with counterweight and pressure boost according to claim 1, characterized in that: The leveling assembly comprises a support plate (2), the support plate (2) is fixedly connected to the outside of the base box (1), and the end of the support plate (2) is threadedly connected with a leveling bolt (3).

3. The anti-skid performance detection device of cement concrete pavement with counterweight and pressure boost according to claim 1, characterized in that: The top of the support base (6) is fixedly connected to a driving motor (11), the output end of the driving motor (11) is fixedly connected to a rotating ring (8), and the nozzle (9) is fixedly connected to the rotating ring (8).

4. The anti-skid performance detection device of cement concrete pavement with counterweight and pressure boost according to claim 3, characterized in that: An infrared thermometer (10) is fixedly connected to one side of the rotating ring (8), an end of the infrared thermometer (10) is electrically connected to a display (7), and the display (7) is fixedly connected to the supporting base (6).

5. The anti-skid performance detection device of cement concrete pavement with counterweight and pressure boost according to claim 1, characterized in that: A water pump (18) is fixedly connected to one side of the water tank (17), the input end of the water pump (18) is connected to the water tank (17), the output end of the water pump (18) is fixedly connected to a solenoid valve (5) via a water pipe, and the solenoid valve (5) is fixedly connected to the base box (1).

6. The device for detecting the anti-skid performance of cement concrete pavement with counterweight and pressure boost according to claim 5, characterized in that: A centrifugal fan (13) is installed on one side of the wind box (12); an air outlet of the wind box (12) is connected to a solenoid valve (5) via an air duct; and the solenoid valve (5) is connected to a nozzle (9).

7. The device for detecting the anti-skid performance of cement concrete pavement with counterweight and pressure boost according to claim 6, characterized in that: The base box (1) is provided with a ventilation port (15) on one side of the centrifugal fan (13).

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