Highway pavement friction coefficient tester

Abstract

The utility model belongs to the field of highway pavement testing, particularly relates to a highway pavement friction coefficient tester, and provides the following scheme aiming at the problems that an existing device is inconvenient to store and occupies a storage space although being convenient to move when being used: the highway pavement friction coefficient tester comprises a base plate, and a vertical rod is fixedly connected to the top of the base plate; the device comprises a base plate, a vertical rod is installed on the base plate, a pendulum type friction coefficient measuring assembly is installed on one side of the vertical rod, a first supporting plate and a second supporting plate are fixedly connected to the two sides of the base plate respectively, the first supporting plate and the second supporting plate are symmetrically arranged, and a rotating shaft is rotationally connected to one side of the base plate. And meanwhile, the occupied area of the device is reduced, the storage efficiency is improved through cooperation of a sliding block and two limiting grooves, meanwhile, by lifting a first supporting plate, two rolling wheels at the ends of a second supporting plate and a movable supporting plate can make contact with the ground, then the equipment is pulled away, the equipment is convenient to move, and the physical power output of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of highway pavement testing, in particular to a highway pavement friction coefficient tester. Background Art

[0002] The primary purpose of road friction coefficient testing is to evaluate the road surface's anti-skid performance, a key factor in ensuring driving safety. Through testing, we can determine the road surface's friction coefficient under different conditions (such as dry, wet, or contaminated), thereby understanding the road's anti-skid capabilities. This testing requires the use of a tester.

[0003] After searching, the publication number CN112378845B discloses a mobile road friction coefficient tester, which includes a support frame and a disc. Although the above device can be easily moved when in use, it is inconvenient to store and occupies storage space. Therefore, a highway road friction coefficient tester is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that although the device can be easily moved when in use, it is inconvenient to store and occupies storage space, and to propose a highway pavement friction coefficient tester.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A road surface friction coefficient tester includes a base plate, a vertical pole fixedly connected to the top of the base plate, a pendulum friction coefficient measuring assembly installed on one side of the vertical pole, a first support plate and a second support plate fixedly connected to the two sides of the base plate, the first support plate and the second support plate being symmetrically arranged, a rotating shaft rotatably connected to one side of the base plate, a movable support plate fixedly connected to one side of the rotating shaft, and support screws penetrating the surfaces of the movable support plate, the first support plate, and the second support plate are all threadedly connected;

[0007] An arc-shaped limiting ring is fixedly connected to the top of the base plate, and two limiting grooves are provided on the inner wall of the limiting ring. The angle between the two limiting grooves is ninety degrees. A rotating disk is fixedly connected to the top of the rotating shaft, and the rotating disk is coaxially arranged with the rotating shaft. A sliding groove is provided on one side of the rotating disk, and a slider is slidably connected in the sliding groove. One end of the slider matches the limiting groove, and a spring is fixedly connected between the slider and the sliding groove.

[0008] As a further solution of the present invention, the second support plate and the movable support plate are both rotatably connected to rollers at one end away from the base plate.

[0009] As a further solution of the present invention, the bottom of the support screw is rotatably connected to a support foot, and the bottom of the support foot is bonded with a rubber pad.

[0010] As a further solution of the present invention, the circumference of the support screw is threadedly connected with a locking nut.

[0011] As a further solution of the present invention, a handle is fixedly connected to the top of the vertical pole.

[0012] As a further solution of the present invention, a leveling bead is fixedly connected to the top of the base plate.

[0013] As a further solution of the present invention, a shift rod is fixedly connected to the surface of the slider.

[0014] As a further solution of the present invention, both ends of the limit ring are fixedly connected to the limit blocks.

[0015] In this application, when in use, mark the measurement position, then place the device at the marked position, adjust the level of the device by turning the support screw, and check whether the device is level by observing the state of the level bead. After the adjustment is completed, the road surface is tested by the pendulum friction coefficient measuring component. After the test is completed, the movable support plate is folded up. When folding, slide the slider so that the slider disengages from the limit groove, and then rotate the movable support plate. After the movable support plate is close to the second support plate, the slider is inserted into another limit groove, thereby maintaining the stability of the device, while reducing the area occupied by the device and improving the storage efficiency. When testing another marked position, the staff can lift the device by pulling the handle, or by lifting the first support plate so that the two rollers at the end of the second support plate and the movable support plate contact the ground, and then pull the device away, which is convenient for moving the equipment, reduces the physical effort of the staff, and is convenient for use.

[0016] Beneficial effects:

[0017] In the utility model, the road surface friction coefficient tester is provided with a movable support plate that can rotate. When the movable support plate is retracted, the stability of the device can be maintained, while reducing the area occupied by the device. The cooperation between the slider and the two limit grooves improves the storage efficiency.

[0018] In the utility model, the highway pavement friction coefficient tester is provided with a setting of rotatably mounted rollers at the ends of the second support plate and the movable support plate, so that by lifting the first support plate, the two rollers at the ends of the second support plate and the movable support plate can contact the ground, and then the device can be pulled away, which facilitates the movement of the device, reduces the physical effort of the staff, and is convenient to use;

[0019] In the utility model, when the movable support plate is folded up, the stability of the device can be maintained, and the area occupied by the device can be reduced. The storage efficiency is improved by the cooperation of the slider and the two limit grooves. At the same time, by lifting the first support plate, the second support plate and the two rollers at the end of the movable support plate can be brought into contact with the ground, and then the equipment can be pulled away, which is convenient for moving the equipment, reduces the physical effort of the staff, and is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a highway pavement friction coefficient tester proposed by the utility model from a first viewing angle;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the highway pavement friction coefficient tester proposed by the utility model from the second viewing angle;

[0022] Figure 3 This is a partial structural diagram of a highway pavement friction coefficient tester proposed by the utility model;

[0023] Figure 4 This is a schematic diagram of the A-point magnified structure of a highway pavement friction coefficient tester proposed by the utility model.

[0024] In the figure: 1. Base plate; 2. First support plate; 3. Second support plate; 4. Vertical pole; 5. Pendulum friction coefficient measuring assembly; 6. Handle; 7. Movable support plate; 8. Roller; 9. Level bead; 10. Support screw; 11. Support foot; 12. Locking nut; 13. Rotating shaft; 14. Limiting ring; 15. Rotating disk; 16. Limiting slot; 17. Slider; 18. Spring; 19. Lever; 20. Limiting block. DETAILED DESCRIPTION

[0025] 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 the embodiments.

[0026] Example 1

[0027] Reference Figures 1-4, a friction coefficient tester, comprising: a base plate 1, a vertical rod 4 is fixedly connected to the top of the base plate 1, a pendulum friction coefficient measuring assembly 5 is installed on one side of the vertical rod 4, the pendulum friction coefficient measuring assembly 5 is a prior art, which includes a pendulum, a dial, a pointer, and a release switch, the dial is fixedly mounted on one side of the vertical rod 4, a release switch is welded to one end of the dial, the pendulum and the pointer are coaxially connected to the dial, and its working principle and usage method are no longer repeated here, a first support plate 2 and a second support plate 3 are fixedly connected on both sides of the base plate 1, the first support plate 2 and the second support plate 3 are symmetrically arranged, one side of the base plate 1 is rotatably connected to a rotating shaft 13, one side of the rotating shaft 13 is fixedly connected to a movable support plate 7, the surfaces of the movable support plate 7, the first support plate 2 and the second support plate 3 are all threadedly connected with a penetrating support screw 10, and the level of the device is adjusted by rotating the support screw 10;

[0028] An arc-shaped limiting ring 14 is fixedly connected to the top of the base plate 1, and two limiting grooves 16 are provided on the inner wall of the limiting ring 14. The angle between the two limiting grooves 16 is set to ninety degrees. A rotating disk 15 is fixedly connected to the top of the rotating shaft 13. The rotating disk 15 is coaxially arranged with the rotating shaft 13. A sliding groove is provided on one side of the rotating disk 15, and a slider 17 is slidably connected in the sliding groove. One end of the slider 17 matches the limiting groove 16, and a spring 18 is fixedly connected between the slider 17 and the sliding groove. When the movable support plate 7 is retracted, the slider 17 is slid so that the slider 17 disengages from the limiting groove 16, and then the movable support plate 7 is rotated. After the movable support plate 7 is close to the second support plate 3, the slider 17 is inserted into the other limiting groove 16, thereby maintaining the stability of the device, while reducing the area occupied by the device and improving the storage efficiency.

[0029] This application can be used in the field of highway pavement testing, and can also be used in other fields applicable to this application.

[0030] Example 2

[0031] refer to Figures 1-4 , based on Example 1, a road surface friction coefficient tester is improved and applied to the field of road surface testing,

[0032] In the utility model, the second support plate 3 and the movable support plate 7 are both rotatably connected to the roller 8 at one end away from the base plate 1. By lifting the first support plate 2, the two rollers 8 at the ends of the second support plate 3 and the movable support plate 7 are in contact with the ground, and then the equipment is pulled away, which facilitates the movement of the equipment and reduces the physical effort of the staff.

[0033] In particular, the bottom of the support screw 10 is rotatably connected to a support foot 11, and a rubber pad is bonded to the bottom of the support foot 11. The support foot 11 is provided to increase the stability of the device when it is placed.

[0034] It should be noted that the circumference of the support screw 10 is threadedly connected with a locking nut 12. By rotating the locking nut 12, the support screw 10 can be locked to prevent rotation and increase stability during use.

[0035] In the present invention, a handle 6 is fixedly connected to the top of the vertical pole 4, and the handle 6 can facilitate the staff to lift the device.

[0036] In particular, a leveling bead 9 is fixedly connected to the top of the base plate 1, and the leveling bead 9 makes it convenient for people to observe the horizontality of the device.

[0037] In the present invention, a shifting rod 19 is fixedly connected to the surface of the slider 17 , and the shifting rod 19 facilitates people to move the slider 17 .

[0038] In particular, both ends of the limiting ring 14 are fixedly connected to the limiting blocks 20 , and the limiting blocks 20 prevent the slider 17 from sliding out.

[0039] However, as is well known to those skilled in the art, the working principle and wiring method of the pendulum friction coefficient measuring assembly 5 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0040] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A road surface friction coefficient tester, comprising a base plate (1), a vertical pole (4) fixedly connected to the top of the base plate (1), a pendulum friction coefficient measuring assembly (5) installed on one side of the vertical pole (4), characterized in that: The two sides of the base plate (1) are respectively fixedly connected with a first support plate (2) and a second support plate (3), the first support plate (2) and the second support plate (3) are symmetrically arranged, one side of the base plate (1) is rotatably connected with a rotating shaft (13), one side of the rotating shaft (13) is fixedly connected with a movable support plate (7), and the surfaces of the movable support plate (7), the first support plate (2) and the second support plate (3) are all threadedly connected with a penetrating support screw (10); The top of the base plate (1) is fixedly connected with an arc-shaped limiting ring (14), and the inner wall of the limiting ring (14) is provided with two limiting grooves (16), and the angle between the two limiting grooves (16) is ninety degrees. The top of the rotating shaft (13) is fixedly connected with a rotating disk (15), and the rotating disk (15) and the rotating shaft (13) are coaxially arranged. A sliding groove is provided on one side of the rotating disk (15), and a slider (17) is slidably connected in the sliding groove. One end of the slider (17) matches the limiting groove (16), and a spring (18) is fixedly connected between the slider (17) and the sliding groove.

2. A road surface friction coefficient tester according to claim 1, characterized in that: The second support plate (3) and the movable support plate (7) are both rotatably connected to rollers (8) at their ends away from the base plate (1).

3. A road surface friction coefficient tester according to claim 2, characterized in that: The bottom of the support screw (10) is rotatably connected to a support foot (11), and the bottom of the support foot (11) is bonded with a rubber pad.

4. A road surface friction coefficient tester according to claim 2, characterized in that: The circumference of the support screw (10) is threadedly connected with a locking nut (12).

5. A road surface friction coefficient tester according to claim 2, characterized in that: A handle (6) is fixedly connected to the top of the vertical pole (4).

6. A road surface friction coefficient tester according to claim 2, characterized in that: A leveling bead (9) is fixedly connected to the top of the base plate (1).

7. A road surface friction coefficient tester according to claim 1, characterized in that: A shifting rod (19) is fixedly connected to the surface of the slider (17).

8. A road surface friction coefficient tester according to claim 7, characterized in that: Both ends of the limiting ring (14) are fixedly connected to the limiting blocks (20).

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