An asphalt pavement thickness detection device for traffic engineering

Abstract

This utility model relates to the field of asphalt pavement thickness detection technology, specifically to an asphalt pavement thickness detection device for traffic engineering, comprising: a rectangular moving frame and a rectangular loading plate. The rectangular loading plate is fixedly connected to the vertical surface of the rectangular moving frame, and a T-shaped mounting plate is slidably connected to the bottom surface inside the rectangular moving frame. An installation groove is formed on the upper surface of the T-shaped mounting plate, and a pair of symmetrical indicator arrows are fixedly connected to the inner ring of a pair of installation grooves. A pair of rectangular insertion grooves are formed on the vertical surface of the rectangular moving frame, and rectangular guide grooves are formed on the long vertical surface inside the rectangular moving frame. A U-shaped connecting block is slidably connected to the rectangular moving frame, and a pair of symmetrical rectangular insertion blocks are fixedly arranged on the vertical surface of a pair of U-shaped connecting blocks near the T-shaped mounting plate. This device uses a horizontal measurement method, which does not cause the measurement data to be affected by the viewing angle, and the horizontal measurement method also facilitates the observation and recording of data.

Description

Technical Field

[0001] This utility model relates to the field of asphalt pavement thickness detection technology, specifically to an asphalt pavement thickness detection device for traffic engineering. Background Technology

[0002] Asphalt pavement thickness testing mainly includes destructive testing techniques and non-destructive testing techniques. Destructive testing involves drilling cylindrical core samples from the pavement using a specialized drilling rig to directly measure the thickness of each structural layer. Its advantages are accurate and reliable data, suitable for acceptance testing and dispute arbitration; its disadvantages include damaging the pavement integrity, low testing efficiency, high cost, and the need to repair the drilled holes after core sampling. Non-destructive testing techniques involve emitting electromagnetic waves onto the pavement surface and then measuring the time it takes for the electromagnetic waves to reflect back from each pavement layer. By analyzing the reflected signals, the thickness of each layer can be accurately determined.

[0003] Non-destructive testing technology: The disadvantage is that it requires experienced operators to interpret the data and is sensitive to moisture content. Destructive testing: The disadvantage is that it will damage the integrity of the road surface, and the testing efficiency is low and the cost is high. After drilling core samples, the boreholes need to be repaired.

[0004] Existing destructive testing methods rely on manual measurement after sampling. However, the bottom surface of the sample is not flat, which can easily lead to inaccurate measurement data. Furthermore, the data obtained from vertical measurements can be affected by the angle of view. Utility Model Content

[0005] Given the existing destructive testing methods, after sampling, manual measurement is used. However, the bottom surface of the sample is not flat, and manual measurement is prone to inaccurate data. Furthermore, the data measured vertically is also affected by the angle of view. To solve the above-mentioned technical problems, this utility model provides the following technical solution: an asphalt pavement thickness detection device for traffic engineering, comprising: a rectangular moving frame and a rectangular loading plate, wherein the rectangular moving frame is fixedly connected to the vertical surface of the rectangular moving frame, a T-shaped mounting plate is slidably connected to the bottom surface inside the rectangular moving frame, an installation groove is provided on the upper surface of the T-shaped mounting plate, a pair of symmetrical indicator arrows are fixedly connected to the inner ring of a pair of installation grooves, a pair of rectangular insertion grooves are provided on the vertical surface of the rectangular moving frame, rectangular guide grooves are provided on the long vertical surface inside the rectangular moving frame, a U-shaped docking block is slidably connected to the rectangular moving frame, and a pair of symmetrical rectangular insertion blocks are fixedly provided on the vertical surface of a pair of U-shaped docking blocks near the T-shaped mounting plate.

[0006] In a preferred embodiment of the asphalt pavement thickness detection device for traffic engineering described in this utility model, rectangular mounting plates are fixedly connected to the vertical surfaces on both sides of the U-shaped connecting block, and a rectangular mounting groove is provided on the lower surface of the T-shaped mounting plate.

[0007] In a preferred embodiment of the asphalt pavement thickness detection device for traffic engineering described in this utility model, auxiliary rollers are arrayed at the inner ring of the rectangular mounting groove, and a connecting rod is fixedly connected to the vertical surface of the T-shaped mounting plate.

[0008] In a preferred embodiment of the asphalt pavement thickness detection device for traffic engineering described in this utility model, a rectangular base plate is fixedly installed on the vertical surfaces of the pair of rectangular moving frames, and a scale is fixedly installed on the upper surface of the rectangular base plate.

[0009] In a preferred embodiment of the asphalt pavement thickness detection device for traffic engineering described in this utility model, arc-shaped support sleeves are fixedly installed on the vertical surfaces of both sides of the rectangular loading plate, and cylindrical placement cylinders are fixedly installed at the inner rings of a pair of arc-shaped support sleeves. A rectangular sliding groove is provided through the upper surface of the rectangular loading plate, and a T-shaped moving block is slidably connected at the inner ring of the rectangular sliding groove. A laser calibrator is fixedly installed on the upper surface of the T-shaped moving block.

[0010] In a preferred embodiment of the asphalt pavement thickness detection device for traffic engineering described in this utility model, a lead screw is provided through the cross-section of the cylindrical placement tube, a rotating sleeve is connected to the cross-section of the lead screw, a pressing circular plate is fixedly connected to the cross-section of the rotating sleeve away from the lead screw, an arc-shaped protective plate is fixedly connected to the cross-section of the pressing circular plate near the lead screw, and a torsion bar is fixedly connected to the end of the lead screw away from the pressing circular plate.

[0011] The technical solution provided by this utility model has the following advantages compared with the known prior art: 1. This device uses a horizontal measurement method, which does not affect the measurement data due to the observation angle, and also makes the data observation and recording more convenient.

[0012] 2. The equipment will use laser alignment to ensure that the measured data and position are accurate. The equipment will also use a pressing method to temporarily fix the sample, which can prevent the asphalt layer of the sample from falling off the base layer. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of the practical thickness detection device; Figure 2 This is a schematic diagram of the structure of the T-shaped mounting plate of the present invention's thickness detection device; Figure 3 This is a schematic diagram of the cylindrical placement tube of the thickness detection device of this utility model; Figure 4 This is a schematic diagram of the connection structure at the lead screw of this practical thickness detection device.

[0015] The labels in the diagram represent: 1. Rectangular moving frame; 2. Rectangular loading plate; 3. T-shaped mounting plate; 4. Indicator arrow; 5. Rectangular insertion slot; 6. Rectangular guide slot; 7. U-shaped docking block; 8. Rectangular insertion block; 9. Rectangular mounting plate; 10. Auxiliary roller; 11. Docking rod; 12. Scale; 13. Arc-shaped support sleeve; 14. Cylindrical placement cylinder; 15. Rectangular slide; 16. T-shaped moving block; 17. Laser calibrator; 18. Lead screw; 19. Pressing round plate; 20. Arc-shaped protective plate; 21. Torsion bar. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] The present invention will be further described below with reference to the embodiments. Example 1:

[0018] Reference Figure 1-3This first embodiment of the present invention discloses an asphalt pavement thickness detection device for traffic engineering, comprising: a rectangular moving frame 1 and a rectangular loading plate 2. The rectangular loading plate 2 is fixedly connected to the vertical surface of the rectangular moving frame 1. A T-shaped mounting plate 3 is slidably connected to the bottom surface inside the rectangular moving frame 1. An installation groove is provided on the upper surface of the T-shaped mounting plate 3. A pair of symmetrical indicator arrows 4 are fixedly connected to the inner ring of a pair of installation grooves. A pair of rectangular insertion grooves 5 are provided on the vertical surface of the rectangular moving frame 1. Rectangular guide grooves 6 are provided on the long vertical surface inside the rectangular moving frame 1. A U-shaped connecting block 7 is slidably connected to the rectangular moving frame 1. A pair of symmetrical rectangular insertion blocks 8 are fixedly provided on the vertical surface of a pair of U-shaped connecting blocks 7 near the T-shaped mounting plate 3.

[0019] Rectangular mounting plates 9 are fixedly connected to the vertical surfaces on both sides of the U-shaped docking block 7. A rectangular mounting groove is provided on the lower surface of the T-shaped mounting plate 3. An auxiliary roller 10 is arranged in an array on the inner ring of the rectangular mounting groove. A docking rod 11 is fixedly connected to the vertical surface of the T-shaped mounting plate 3. The same rectangular base plate is fixedly installed on the vertical surfaces of a pair of rectangular moving frames 1. A scale 12 is fixedly installed on the upper surface of the rectangular base plate.

[0020] When the device performs measurements, the T-shaped moving block 16 will be pushed because the docking rod 11 is fixedly connected to the vertical surface of the T-shaped mounting plate 3, and the T-shaped moving block 16 is fixedly connected to the end of the docking rod 11 away from the T-shaped mounting plate 3. The upper surface of the T-shaped mounting plate 3 has a mounting groove, and a pair of symmetrical indicator arrows 4 are fixedly connected to the inner ring of a pair of mounting grooves. The vertical surface of the rectangular moving frame 1 has a pair of rectangular insertion grooves 5, and the long vertical surface inside the rectangular moving frame 1 has rectangular guide grooves 6. The same rectangular base plate is fixedly installed on the opposite vertical surfaces of a pair of rectangular moving frames 1, and a scale 12 is fixedly installed on the upper surface of the rectangular base plate. Therefore, when the T-shaped moving block 16 moves, the T-shaped mounting plate 3 will also move, thereby measuring the thickness of the sample (there is no fixed standard for the thickness of asphalt pavement, which depends on three main factors: road grade, climate environment, and pavement structure design. The conventional thickness range is between 4cm and 18cm). Example 2:

[0021] Reference Figure 1 , 3 4 is the second embodiment of this utility model. The difference between this embodiment and the first embodiment is that: arc-shaped support sleeves 13 are fixedly installed on the vertical surfaces of both sides of the rectangular loading plate 2, and cylindrical placement cylinders 14 are fixedly installed on the inner rings of a pair of arc-shaped support sleeves 13. A rectangular sliding groove 15 is provided through the upper surface of the rectangular loading plate 2. A T-shaped moving block 16 is slidably connected to the inner ring of the rectangular sliding groove 15. A laser calibrator 17 is fixedly installed on the upper surface of the T-shaped moving block 16.

[0022] A lead screw 18 is installed through the cross section of the cylindrical placement tube 14. A rotating sleeve is connected to the cross section of the lead screw 18. A pressing circular plate 19 is fixedly connected to the cross section of the rotating sleeve away from the lead screw 18. An arc-shaped protective plate 20 is fixedly connected to the cross section of the pressing circular plate 19 near the lead screw 18. A torsion bar 21 is fixedly connected to the end of the lead screw 18 away from the pressing circular plate 19.

[0023] When using this device, a sample is first taken from the ground using a sampling device (the sampling device is cited in application number: CN202220066471.2 A device for detecting the thickness of asphalt pavement in traffic engineering). The sample is then placed in the inner ring of the cylindrical placement cylinder 14 (with the upper surface of the asphalt aligned with the circular surface of the cylindrical placement cylinder 14 near the T-shaped mounting plate 3). Then, the torsion bar 21 is twisted. A lead screw 18 is installed through the cross-section of the cylindrical placement cylinder 14, and a rotating sleeve is connected to the cross-section of the lead screw 18. A pressing circular plate 19 is fixedly connected to the cross-section of the rotating sleeve away from the lead screw 18, and an arc-shaped protective ring is fixedly connected to the cross-section of the pressing circular plate 19 near the lead screw 18. Plate 20 and screw 18 are fixedly connected to torsion bar 21 at the end away from pressing circular plate 19. When screw 18 rotates, pressing circular plate 19 will approach the sample base layer, thereby temporarily limiting the sample. Then, laser calibrator 17 is turned on (the structure and working principle of which are cited in the paper: Laser Calibrator). Then, T-shaped moving block 16 can be used. Then, the operation in Example 1 can be followed (the inner diameter of cylindrical placement tube 14 is smaller than the inner diameter of the sampling tube of the corresponding sampling device).

[0024] The remaining structure is the same as that in Example 1.

[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for detecting the thickness of asphalt pavement in traffic engineering, characterized in that, include: A rectangular moving frame (1) and a rectangular loading plate (2) are provided. The rectangular moving frame (1) is fixedly connected to the vertical surface of the rectangular loading plate (2). A T-shaped mounting plate (3) is slidably connected to the bottom surface inside the rectangular moving frame (1). A mounting groove is provided on the upper surface of the T-shaped mounting plate (3). A pair of symmetrical indicator arrows (4) are fixedly connected to the inner ring of a pair of mounting grooves. A pair of rectangular insertion grooves (5) are provided on the vertical surface of the rectangular moving frame (1). A rectangular guide groove (6) is provided on the long vertical surface inside the rectangular moving frame (1). A U-shaped docking block (7) is slidably connected to the rectangular moving frame (1). A pair of symmetrical rectangular insertion blocks (8) are fixedly provided on the vertical surface of a pair of U-shaped docking blocks (7) near the T-shaped mounting plate (3).

2. The asphalt pavement thickness detection device for traffic engineering according to claim 1, characterized in that, A rectangular mounting plate (9) is fixedly connected to the vertical surfaces on both sides of the U-shaped docking block (7), and a rectangular mounting groove is provided on the lower surface of the T-shaped mounting plate (3).

3. The asphalt pavement thickness detection device for traffic engineering according to claim 2, characterized in that, The inner ring of the rectangular mounting groove is provided with an array of auxiliary rollers (10), and the vertical surface of the T-shaped mounting plate (3) is fixedly connected with a docking rod (11).

4. The asphalt pavement thickness detection device for traffic engineering according to claim 1, characterized in that, A rectangular base plate is fixedly installed on the vertical surfaces of the pair of rectangular moving frames (1), and a scale (12) is fixedly installed on the upper surface of the rectangular base plate.

5. The asphalt pavement thickness detection device for traffic engineering according to claim 1, characterized in that, Arc-shaped support sleeves (13) are fixedly installed on both vertical surfaces of the rectangular loading plate (2). A cylindrical placement cylinder (14) is fixedly installed on the inner ring of each pair of arc-shaped support sleeves (13). A rectangular sliding groove (15) is provided through the upper surface of the rectangular loading plate (2). A T-shaped moving block (16) is slidably connected to the inner ring of the rectangular sliding groove (15). A laser calibrator (17) is fixedly installed on the upper surface of the T-shaped moving block (16).

6. The asphalt pavement thickness detection device for traffic engineering according to claim 5, characterized in that, A lead screw (18) is provided through the cross section of the cylindrical placement tube (14). A rotating sleeve is connected to the cross section of the lead screw (18). A pressing circular plate (19) is fixedly connected to the cross section of the rotating sleeve away from the lead screw (18). An arc-shaped protective plate (20) is fixedly connected to the cross section of the pressing circular plate (19) close to the lead screw (18). A torsion bar (21) is fixedly connected to the end of the lead screw (18) away from the pressing circular plate (19).

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