A high tensile thin wearing course thickness measuring device
By designing a measuring device that combines an empty cylinder and a vernier caliper, the problem of low efficiency and low accuracy in measuring asphalt paving thickness in existing technologies has been solved, enabling convenient and efficient measurement of high-elasticity ultra-thin wear layers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI JINYU ROAD & BRIDGE ENG CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-05-29
AI Technical Summary
Existing methods for measuring asphalt paving thickness are inefficient and inaccurate, and cannot accurately measure the thickness of high-elasticity ultra-thin wear layers.
A measuring device comprising an empty cylinder, an inner insert rod, a limiting plate, and a vernier scale was designed. The bottom of the inner insert rod has a conical head structure. Accurate measurement is achieved by combining the readings on the scale on the empty cylinder and the vernier scale.
This improves the convenience and accuracy of measuring high-elasticity ultra-thin wear layers, ensuring the accuracy and efficiency of measurements.
Smart Images

Figure CN224302947U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of measuring tools for road construction, specifically to a device for measuring the thickness of a high-elasticity, ultra-thin wear layer. Background Technology
[0002] The high-viscoelastic asphalt ultra-thin wearing bond layer has a thickness of 15-25mm. This functional layer can efficiently and quickly repair minor rutting, pavement cracking, whitening, and loosening, while also improving skid resistance, reducing noise, and minimizing water spray. Furthermore, because its thickness is only 1 / 3 to 1 / 2 that of traditional asphalt surface layers, this process offers advantages such as fast construction speed and reduced resource and energy consumption, making it an environmentally friendly technology for new and reconstructed pavements. During construction, measurements of the laid high-viscoelastic ultra-thin wearing bond layer are required.
[0003] However, most existing methods for measuring asphalt paving thickness use the rod insertion method. This method involves inserting a steel rod into the asphalt pavement and then pulling it out, followed by measuring with a ruler to obtain the thickness of the asphalt pavement. This method is not only inefficient, but also prone to errors when measuring the length of the inserted steel rod with a ruler, resulting in low measurement accuracy and an inability to accurately measure the asphalt paving thickness. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide a high-elasticity ultra-thin wear layer thickness measuring device, which can make the measurement of high-elasticity ultra-thin wear layers more convenient and efficient, and with higher measurement accuracy.
[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:
[0006] A high-elasticity ultra-thin wear layer thickness measuring device includes a hollow cylinder, an inner rod, a limiting plate, and a vernier scale. The inner rod is a straight rod structure with a conical head at the bottom and is movably disposed inside the hollow cylinder. After the bottom of the hollow cylinder is closed, a through hole is reserved on the bottom end face for the inner rod to pass through. A limiting plate is formed in the lower middle part of the inner rod and is movably sleeved inside the hollow cylinder. A vernier scale is formed in the upper middle part. A strip-shaped slot is reserved on the side wall of the hollow cylinder for the vernier scale to pass through. When the vernier scale moves to the top, the zero mark is aligned with the zero mark on the outer wall of the hollow cylinder.
[0007] As an improvement, the empty cylinder is a cylindrical body, and its bottom wall extends horizontally outwards to form a base, the bottom surface of which is rough. After the top of the empty cylinder is also sealed, a perforation is pre-drilled on the top wall for the inner rod to pass through. This allows the inner rod to move stably vertically within the empty cylinder.
[0008] As an improvement, the limiting plate and the chassis are connected by a spring through which the inner insert rod passes. This allows the inner insert rod to automatically return to its original position after being pressed down, thanks to the elastic deformation of the spring.
[0009] As an improvement, a disc-shaped pressing handle is formed at the top of the inner insert rod, and a silicone pad is attached to the top surface of the pressing handle. This allows for easier and more convenient pressing of the inner insert rod.
[0010] The advantages of this utility model compared with the prior art are as follows:
[0011] When using this invention, after placing the empty cylinder's base flat on the laid high-elasticity ultra-thin wear layer, press the inner insertion rod to insert its bottom into the high-elasticity ultra-thin wear layer until the inner insertion rod just passes through the high-elasticity ultra-thin wear layer. Then, by combining the scale reading on the empty cylinder with the vernier scale reading on the vernier scale, the thickness of the high-elasticity ultra-thin wear layer can be accurately measured, making the measurement operation more convenient and efficient. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model.
[0013] Figure 2 This is a structural schematic diagram from another perspective of this utility model.
[0014] Figure 3 This is a partial structural schematic diagram of the present invention.
[0015] Figure 4 This is a structural schematic diagram of another part of this utility model.
[0016] As shown in the figure: 1. Empty cylinder; 2. Inner rod; 3. Limiting plate; 4. Vernier scale; 5. Perforation; 6. Strip groove; 7. Base plate; 8. Spring; 9. Press handle; 10. U-shaped handle. Detailed Implementation
[0017] In the description of this utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.
[0018] The present invention will now be described in further detail with reference to the accompanying drawings.
[0019] A high-elasticity ultra-thin wear layer thickness measuring device includes a hollow cylinder 1, an inner rod 2, a limiting plate 3, and a vernier scale 4. Specifically: the inner rod 2 is a straight rod structure with a conical head at the bottom, and is movably disposed inside the hollow cylinder 1. The hollow cylinder 1 is a cylindrical body, and its bottom wall extends horizontally outwards to form a base plate 7. The bottom surface of the base plate 7 is rough. A through hole 5 is reserved on the bottom end face of the hollow cylinder 1 through which the inner rod 2 just passes. After the top of the hollow cylinder 1 is also closed, a through hole 5 is also reserved on the top wall through which the inner rod 2 just passes. A limiting plate 3 is formed in the lower middle part of the inner rod 2, which is movably sleeved inside the hollow cylinder 1. A vernier scale 4 is formed in the upper middle part. A strip-shaped groove 6 through which the vernier scale 4 just passes is reserved on the side wall of the hollow cylinder 1. The zero mark of the vernier scale 4 at the top is aligned with the zero mark on the outer wall of the hollow cylinder 1. The limiting plate 3 and the base plate 7 are connected by a spring 8 through which the inner insert rod 2 passes. A disc-shaped pressing handle 9 is formed at the top of the inner insert rod 2, and a silicone pad is attached to the top surface of the pressing handle 9. A U-shaped handle 10 is also formed on the side of the outer wall of the empty cylinder 1 opposite to the strip-shaped groove 6.
[0020] In the specific implementation of this embodiment:
[0021] like Figure 1 and 2 As shown, place the empty cylinder 1 flat on the laid high-elasticity ultra-thin wear layer, and then press the inner insertion rod 2 to insert its bottom into the high-elasticity ultra-thin wear layer. When you can no longer press it, the inner insertion rod 2 will just pass through the high-elasticity ultra-thin wear layer. Then, by combining the scale reading on the empty cylinder 1 and the vernier scale reading on the vernier caliper 4, the laying thickness of the high-elasticity ultra-thin wear layer can be accurately measured.
[0022] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A device for measuring the thickness of a high-elasticity, ultra-thin wear layer, characterized in that: It includes an empty cylinder (1), an inner rod (2), a limiting plate (3), and a vernier scale (4); the inner rod (2) is a straight rod structure with a conical head at the bottom and is movably set inside the empty cylinder (1). After the bottom of the empty cylinder (1) is closed, the inner rod (2) is reserved on the bottom end face so that it passes through the through hole (5). The lower part of the inner rod (2) is formed with a limiting plate (3) that is movably sleeved inside the empty cylinder (1), and the upper part is formed with a vernier scale (4). The side wall of the empty cylinder (1) is reserved with a strip-shaped slot (6) through which the vernier scale (4) passes. The zero mark of the vernier scale (4) at the top is aligned with the zero mark on the outer wall of the empty cylinder (1).
2. The device for measuring the thickness of a high-elasticity ultrathin wear layer according to claim 1, characterized in that: The empty cylinder (1) is a cylindrical body, and the bottom wall extends horizontally around the outside of the empty cylinder (1) to form a base (7), the bottom surface of the base (7) is a rough surface.
3. The device for measuring the thickness of a high-elasticity ultrathin wear layer according to claim 2, characterized in that: After the top of the empty cylinder (1) is also sealed, a perforation (5) is reserved on the top wall so that the inner rod (2) can pass through.
4. The device for measuring the thickness of a high-elasticity ultrathin wear layer according to claim 1, characterized in that: The limiting plate (3) and the chassis (7) are connected by a spring (8) through which the inner rod (2) passes.
5. The device for measuring the thickness of a high-elasticity ultrathin wear layer according to claim 4, characterized in that: The top of the inner rod (2) has a disc-shaped pressing handle (9), and a silicone pad is attached to the top surface of the pressing handle (9).
6. The device for measuring the thickness of a high-elasticity ultrathin wear layer according to claim 1, characterized in that: A U-shaped handle (10) is also formed on the side of the outer wall of the hollow cylinder (1) opposite to the strip groove (6).