Device for testing anti-freezing performance of asphalt pavement by simulating dynamic load

Abstract

The utility model relates to the technical field of testing the anti-freezing performance of an asphalt pavement, and discloses a device for testing the anti-freezing performance of the asphalt pavement by simulating a dynamic load, which comprises an equipment base, a fixed support leg is fixedly connected to the outer surface of the lower end of the equipment base, and a telescopic support column is fixedly connected to the outer surface of the upper end of the equipment base. When the device is used, the arranged square pendulum bob freely swings downwards to drive the rubber pendulum bottom to make contact with the asphalt pavement, part of energy is consumed due to friction between the rubber pendulum bottom and the asphalt pavement, and the square pendulum bob can only swing back to a certain height; when the bottom of the measuring rod is impacted, the measuring rod can automatically move upwards, and after the measuring rod is stressed, the arc-shaped clamping bolt can be popped into the inner side of the toothed clamping groove under the action of the elastic force of the elastic rod, so that the measuring rod can be fixed, and the anti-freezing property of the asphalt pavement can be quickly calculated by using the scale pointed by the pointer.

Description

Technical Field

[0001] The utility model relates to the technical field of testing the anti-icing property of asphalt pavement, in particular to a device for testing the anti-icing property of asphalt pavement by simulating dynamic load. Background Art

[0002] Anti-icing asphalt pavement is made by mixing snow-melting materials into the road surface during paving. The materials slowly precipitate out during long-term use, thus melting the snow on the road surface. It not only has the advantages of active, efficient, and bottom-up melting of ice and snow, but also can achieve continuous and lasting snow and ice melting, avoiding a series of adverse effects caused by the use of large amounts of snow-melting agents. At the same time, under the action of vehicle load rolling, the efficiency of snow and ice melting is improved. The device for testing the anti-icing performance of asphalt pavement by simulating dynamic load can measure the anti-icing performance of the pavement.

[0003] However, it still has some disadvantages. For example, when the device for testing the anti-icing performance of asphalt pavement is in use, after the square pendulum swings back to a certain height, it will fall rapidly, and the duration is too short, so the operator cannot quickly observe and record the swing height of the square pendulum, and even observe incorrectly and affect the test result, thereby increasing the difficulty of testing the device for testing the anti-icing performance of asphalt pavement. In addition, since the rubber pendulum bottom needs to rub against the test pavement during use, the rubber pendulum bottom is prone to wear and needs to be replaced over a long period of time. The square pendulum and the rubber pendulum bottom cannot be quickly disassembled and installed, so when the rubber pendulum bottom is worn, the entire pendulum device needs to be replaced, which greatly reduces the practicability and use efficiency of the device for testing the anti-icing performance of asphalt pavement.

[0004] In order to solve the above problems, the present application proposes a device for testing the anti-icing performance of asphalt pavement by simulating dynamic load. Utility Model Content

[0005] The purpose of the utility model is to provide a device for testing the anti-icing performance of asphalt pavement by simulating dynamic loads, so as to solve the problems in the prior art proposed in the above-mentioned background technology that the device for testing the anti-icing performance of asphalt pavement is not convenient for viewing the test results and the installation of the device for testing the anti-icing performance of asphalt pavement is not convenient enough.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for testing the anti-icing performance of asphalt pavement by simulating dynamic loads, comprising an equipment base, the lower end outer surface of the equipment base is fixedly connected to a fixed support foot, the upper end outer surface of the equipment base is fixedly connected to a telescopic support, the outer wall of the telescopic support is movably connected to an adjustment bolt, the upper end outer surface of the telescopic support is fixedly connected to a driving block, the upper end outer surface of the driving block is fixedly connected to a portable handle, the front end outer surface of the portable handle is movably connected to a swing shaft, and the outer wall of the swing shaft is fixedly connected to a lifting rod.

[0007] Preferably, a mounting plate is detachably connected to the upper outer surface of the device base, a scale column is fixedly connected to the upper outer surface of the mounting plate, and a toothed slot is provided on the front outer surface of the scale column.

[0008] Preferably, a measuring rod is movably connected to an inner surface of one side of the toothed slot, a pointer is fixedly connected to an outer surface of one side of the measuring rod, and an elastic rod is fixedly connected to an inner surface of one side of the measuring rod.

[0009] Preferably, a control strip is fixedly connected to the outer surface of the right end of the elastic rod, a pressing handle is fixedly connected to the outer surface of one side of the control strip, and an arc-shaped latch is fixedly connected to the outer surface of one side of the control strip.

[0010] Preferably, a square pendulum is fixedly connected to the outer surface of the lower end of the swing shaft, a fixed sleeve is fixedly connected to the outer surface of one side of the square pendulum, and a rubber pendulum bottom is detachably connected to the outer surface of the lower end of the square pendulum.

[0011] Preferably, a fixing bolt is fixedly connected to the outer surface of the upper end of the rubber swing bottom, a connecting piece is fixedly connected to the outer surface of one side of the rubber swing bottom, and a telescopic clamping bolt is movably connected to the outer surface of one side of the connecting piece.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model drives the rubber pendulum bottom to contact the asphalt pavement by means of the free downward swing of the square pendulum arranged therebetween. Due to the friction between the two, part of the energy is lost, so that the square pendulum can only swing back to a certain height. When the square pendulum swings back, it can hit the measuring rod through the swing axis. When the bottom of the measuring rod is hit, it will automatically move upward. When the measuring rod is fully stressed, the arc-shaped clamping bolt will spring into the inner side of the toothed clamping groove under the elastic force of the elastic rod, so that the measuring rod can be fixed. Then, the scale pointed to by the pointer can be used to quickly calculate the anti-icing property of the asphalt pavement.

[0014] The utility model cooperates with the telescopic bolt through the connection piece that is arranged, so that when the rubber pendulum bottom is damaged and needs to be replaced and installed, the rubber pendulum bottom can be sleeved on the bottom of the square pendulum by using the fixing bolt, and then the connection piece is embedded in the inner surface of one side of the fixing sleeve frame, and the rubber pendulum bottom can be fixed by the rebound of the telescopic bolt, so as to prevent the rubber pendulum bottom from falling off during use. The installation is simple and quick, and the need to replace the entire pendulum device when the rubber pendulum bottom is worn is avoided, thereby effectively improving the practicability and use efficiency of the device for testing the anti-icing performance of asphalt pavement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of a device for testing the anti-icing performance of asphalt pavement by simulating dynamic loads according to the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a scale column in a device for testing the anti-icing performance of an asphalt pavement by simulating dynamic loads according to the utility model;

[0017] Figure 3 This is a schematic diagram of the exploded structure of a measuring rod in a device for testing the anti-icing performance of an asphalt pavement by simulating dynamic loads according to the utility model;

[0018] Figure 4 This is a schematic diagram of the decomposed structure of a rubber swing bottom in a device for testing the anti-icing performance of an asphalt pavement by simulating dynamic loads according to the utility model;

[0019] In the figure: 1. Equipment base; 2. Fixed support foot; 3. Telescopic support; 4. Adjustment bolt; 5. Drive block; 6. Portable handle; 7. Swing shaft; 8. Lifting rod; 9. Mounting plate; 10. Scale column; 11. Toothed slot; 12. Measuring rod; 13. Pointer; 14. Elastic rod; 15. Control strip; 16. Press handle; 17. Arc bolt; 18. Square pendulum; 19. Fixed bracket; 20. Rubber pendulum bottom; 21. Fixed bolt; 22. Connecting plate; 23. Telescopic bolt. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figure 1-Figure 4 The utility model provides a technical solution: a device for testing the anti-icing performance of asphalt pavement with simulated dynamic load, comprising an equipment base 1, a fixed support leg 2 is fixedly connected to the outer surface of the lower end of the equipment base 1, a telescopic support 3 is fixedly connected to the outer surface of the upper end of the equipment base 1, an adjusting bolt 4 is movably connected to the outer wall of the telescopic support 3, a driving block 5 is fixedly connected to the outer surface of the upper end of the telescopic support 3, a portable handle 6 is fixedly connected to the outer surface of the upper end of the driving block 5, a swing shaft 7 is movably connected to the outer surface of the front end of the portable handle 6, a lifting rod 8 is fixedly connected to the outer wall of the swing shaft 7, and the telescopic support 3 can be freely adjusted in height according to demand and then fixed by the adjusting bolt 4.

[0022] In this embodiment, Figure 2 Figure 3As shown, a mounting plate 9 is detachably connected to the outer surface of the upper end of the device base 1, and a scale column 10 is fixedly connected to the outer surface of the upper end of the mounting plate 9. A toothed slot 11 is provided on the outer surface of the front end of the scale column 10. The mounting plate 9 can quickly mount the scale column 10 on the outer surface of the upper end of the device base 1, and a measuring rod 12 is movably connected to the inner surface of one side of the toothed slot 11, and a pointer 13 is fixedly connected to the outer surface of one side of the measuring rod 12. An elastic rod 14 is fixedly connected to the inner surface of one side of the measuring rod 12. The anti-skid value of the asphalt pavement can be analyzed using the scale pointed by the pointer 13. A control strip 15 is fixedly connected to the outer surface of the right end of the elastic rod 14, and a pressing handle 16 is fixedly connected to the outer surface of one side of the control strip 15. An arc-shaped bolt 17 is fixedly connected to the outer surface of one side of the control strip 15. By pressing the pressing handle 16, the arc-shaped bolt 17 can be driven to retract inward, so that the measuring rod 12 can be moved from the inner side of the toothed slot 11 to the inner surface of the lower end of the scale column 10.

[0023] In this embodiment, Figure 4 As shown, a square pendulum 18 is fixedly connected to the outer surface of the lower end of the swing shaft 7, a fixed sleeve 19 is fixedly connected to the outer surface of one side of the square pendulum 18, a rubber pendulum bottom 20 is detachably connected to the outer surface of the lower end of the square pendulum 18, the rubber pendulum bottom 20 can prevent the square pendulum 18 from being worn, a fixing bolt 21 is fixedly connected to the outer surface of the upper end of the rubber pendulum bottom 20, a connecting piece 22 is fixedly connected to the outer surface of one side of the rubber pendulum bottom 20, a telescopic bolt 23 is movably connected to the outer surface of one side of the connecting piece 22, the connecting piece 22 is embedded in the inner surface of one side of the fixed sleeve 19, and the rubber pendulum bottom 20 can be fixed by the rebound of the telescopic bolt 23.

[0024] Working principle:

[0025] When using the device for testing the anti-icing performance of asphalt pavement, firstly, the device for testing the anti-icing performance of asphalt pavement is lifted to the asphalt pavement to be tested by the portable handle 6, and then the swing shaft 7 is pulled to the right to a height parallel to the driving block 5 by the lifting rod 8, and finally the lifting rod 8 is released, so that the square pendulum 18 can swing freely, driving the rubber pendulum bottom 20 to contact the asphalt pavement. Due to the friction between the two, part of the energy is lost, so that the square pendulum 18 can only swing back to a certain height, and when the square pendulum 18 swings back, it can hit the measuring rod 12 through the swing shaft 7. Since the arc-shaped clamping bolt 17 can freely shrink on the inner side of the measuring rod 12 by the elastic rod 14, when the bottom of the measuring rod 12 is hit, it will drive the arc-shaped clamping bolt 17 to shrink toward the inner side of the measuring rod 12, so that the lower end of the measuring rod 12 will automatically move upward after being subjected to force. When the measuring rod 12 is fully subjected to force, the arc-shaped clamping bolt 17 will spring into the inner side of the toothed slot 11 under the elastic force of the elastic rod 14, so that the measuring rod 12 can be fixed, and then the arc-shaped clamping bolt 17 can be used to fix the measuring rod 12. The anti-skid value of the asphalt pavement can be analyzed by the scale pointed by the pointer 13. The higher the pointer 13 points, the lower the anti-skid value of the pavement is, which proves that there is ice on the asphalt pavement and its anti-icing property is lower. The lower the pointer 13 points, the higher the anti-skid value is and the stronger its anti-icing property is. The operation is simple and quick, allowing the operator to quickly watch and record the swing height of the square pendulum 18, so as to quickly calculate the anti-icing property of the asphalt pavement. When the rubber pendulum bottom 20 is damaged and needs to be replaced and installed, the rubber pendulum bottom 20 can be sleeved on the bottom of the square pendulum 18 by using the fixing bolt 21, and then the connecting piece 22 is embedded in the inner surface of one side of the fixing sleeve 19. The rubber pendulum bottom 20 can be fixed by the rebound of the telescopic clamping bolt 23, so as to prevent the rubber pendulum bottom 20 from falling off during use. The installation is simple and quick, avoiding the need to replace the entire pendulum device when the rubber pendulum bottom 20 is worn, and effectively improving the practicality and use efficiency of the device for testing the anti-icing property of asphalt pavement.

[0026] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A device for testing the anti-icing performance of asphalt pavement by simulating dynamic load, comprising a device base (1), characterized in that: The lower outer surface of the device base (1) is fixedly connected to a fixed support foot (2), the upper outer surface of the device base (1) is fixedly connected to a telescopic support (3), the outer wall of the telescopic support (3) is movably connected to an adjustment bolt (4), the upper outer surface of the telescopic support (3) is fixedly connected to a drive block (5), the upper outer surface of the drive block (5) is fixedly connected to a portable handle (6), the front end outer surface of the portable handle (6) is movably connected to a swing shaft (7), and the outer wall of the swing shaft (7) is fixedly connected to a lifting rod (8).

2. The device for testing the anti-icing performance of asphalt pavement by simulating dynamic load according to claim 1 is characterized in that: The upper outer surface of the device base (1) is detachably connected to a mounting plate (9), the upper outer surface of the mounting plate (9) is fixedly connected to a scale column (10), and the front end outer surface of the scale column (10) is provided with a toothed slot (11).

3. The device for testing the anti-icing performance of asphalt pavement by simulating dynamic load according to claim 2, characterized in that: A measuring rod (12) is movably connected to an inner surface of one side of the toothed slot (11), a pointer (13) is fixedly connected to an outer surface of one side of the measuring rod (12), and an elastic rod (14) is fixedly connected to an inner surface of one side of the measuring rod (12).

4. The device for testing the anti-icing performance of asphalt pavement by simulating dynamic load according to claim 3 is characterized by: The right end outer surface of the elastic rod (14) is fixedly connected to a control strip (15), one side outer surface of the control strip (15) is fixedly connected to a pressing handle (16), and one side outer surface of the control strip (15) is fixedly connected to an arc-shaped latch (17).

5. The device for testing the anti-icing performance of asphalt pavement by simulating dynamic load according to claim 1, characterized in that: A square pendulum (18) is fixedly connected to the outer surface of the lower end of the swing shaft (7), a fixed sleeve (19) is fixedly connected to the outer surface of one side of the square pendulum (18), and a rubber pendulum bottom (20) is detachably connected to the outer surface of the lower end of the square pendulum (18).

6. The device for testing the anti-icing performance of asphalt pavement by simulating dynamic load according to claim 5, characterized in that: The upper outer surface of the rubber swing bottom (20) is fixedly connected with a fixing bolt (21), the outer surface of one side of the rubber swing bottom (20) is fixedly connected with a connecting piece (22), and the outer surface of one side of the connecting piece (22) is movably connected with a telescopic clamping bolt (23).

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