A paving thickness measuring scale for asphalt road surfaces

Abstract

This utility model relates to the field of pavement thickness measurement technology, and discloses a ruler for measuring the thickness of asphalt pavement paving. The ruler includes a ruler with a fixed plate fixedly connected to its top. A rod is slidably connected through the top of the fixed plate and a handle fixedly connected to the top of the rod. A movable frame is fixedly connected to one side of the outer ring of the rod. A pointing plate is fixedly connected to one side of the inner wall of the movable frame. A fixed box is fixedly connected to one side of the outer wall of the movable frame. A square groove is formed on one side of the outer wall of the fixed box. A stop block is slidably connected to the inner wall of the square groove. A support rod is slidably connected through the stop block and to one side of the stop block. In this utility model, pressing the handle causes the bottom end of the rod to insert into the asphalt pavement. When the bottom end of the rod moves to the top surface of the underlying layer, the stop block engages with the limiting plate, fixing the position of the movable frame. The movable frame then causes the pointing plate to indicate the reading, thus achieving the measurement of the asphalt pavement thickness.

Description

Technical Field

[0001] This utility model relates to the field of pavement thickness measurement technology, and in particular to a ruler for measuring the thickness of asphalt pavement paving. Background Technology

[0002] In the process of road thickness measurement, measuring scales are widely used to measure the thickness of asphalt pavement. Asphalt pavement refers to various types of pavement paved with road asphalt material mixed into mineral materials. Asphalt binder improves the ability of paving aggregates to resist damage to the pavement from traffic and natural factors, making the pavement smooth, dust-free, impermeable, and durable. Measuring vernier calipers are also used in the process of road thickness measurement.

[0003] When using the existing measuring vernier, after inserting a screwdriver into the top surface of the underlying layer, the user presses down on the top of the surface layer with their fingers and holds the screwdriver in place. Then, the user pulls out the screwdriver and uses a steel ruler to measure the loose thickness, thus enabling the measurement of the asphalt pavement.

[0004] However, existing measuring vernier calipers require the screwdriver to be pulled out and a steel ruler to be used to compare the thickness with the screwdriver to obtain the loose paving thickness. This operation is cumbersome and can easily lead to measurement errors and poor detection results. To address these issues, a new asphalt pavement paving thickness measuring caliper is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a ruler for measuring the thickness of asphalt pavement, which solves the problem in the prior art that the loose paving thickness is obtained by comparing a steel ruler with a screwdriver, which is cumbersome, prone to measurement errors, and has poor detection results.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an asphalt pavement paving thickness measuring ruler, comprising a ruler, a fixed plate fixedly connected to the top of the ruler, an insert rod slidably connected through the top of the fixed plate, a handle fixedly connected to the top of the insert rod, a movable frame fixedly connected to one side of the outer ring of the insert rod, a pointing plate fixedly connected to one side of the inner wall of the movable frame, a fixed box fixedly connected to one side of the outer wall of the movable frame, a square groove formed on one side of the outer wall of the fixed box, a stop block slidably connected to the inner wall of the square groove, a support rod slidably connected through the side of the stop block, a spring sleeved on the outer ring of the support rod, a third slide rail fixedly connected to one side of the stop block, a lever slidably connected to the inner wall of the third slide rail, a limiting steel plate fixedly connected to the bottom of the ruler, and a limiting plate fixedly connected between the fixed plate and the fixed frame.

[0007] By adopting the above technical solution, when it is necessary to detect the thickness of asphalt pavement, pressing the handle will cause the bottom end of the insertion rod to be inserted into the asphalt pavement. When the insertion rod moves, it can drive the moving frame and the fixed box to move. When the bottom end of the insertion rod moves to the top surface of the underlying layer, the indicator plate will indicate the reading, thus realizing the measurement of the thickness of the asphalt pavement.

[0008] As a further description of the above technical solution: the top and bottom of the inner wall of the fixed box are fixedly connected to a second slide rail, and a third slide rail is slidably connected between the two second slide rails.

[0009] By adopting the above technical solution, the second slide rail can limit the third slide rail and prevent the third slide rail from deviating when it moves.

[0010] As a further description of the above technical solution: a movable frame is slidably connected to the rear side of the scale, and a pointing plate is slidably connected to one side of the scale.

[0011] By adopting the above technical solution, the ruler can limit the movement of the frame and the guide plate, and the guide plate can indicate the thickness of the asphalt pavement.

[0012] As a further description of the above technical solution: a fixed frame is fixedly connected to the bottom front side of the ruler, and a plug rod is slidably connected through the top of the fixed frame.

[0013] By adopting the above technical solution, the fixed frame can limit the insertion rod, and the insertion rod can be inserted into the asphalt pavement.

[0014] As a further description of the above technical solution: a support rod is fixedly connected to one side of the inner wall of the fixed box.

[0015] By adopting the above technical solution, the movement of the support rod can compress the spring.

[0016] As a further description of the above technical solution: a limiting groove is provided on one side of the outer wall of the fixed box, and a lever is provided on the inner wall of the limiting groove.

[0017] By adopting the above technical solution, the limiting groove can limit the movement of the lever, so that the lever keeps compressing the spring.

[0018] As a further description of the above technical solution: a first slide rail is fixedly connected between the fixed plate and the fixed frame, and a movable frame is slidably connected to the inner wall of the first slide rail.

[0019] By adopting the above technical solution, the first slide rail can limit the movement of the frame and prevent it from shifting during movement.

[0020] As a further description of the above technical solution: the limiting plate and the stop block are engaged.

[0021] By adopting the above technical solution, the limiting plate and the stop block can fix the position of the moving frame.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides an asphalt pavement paving thickness measuring scale, which, through a stop block, spring, lever block, and movable frame, allows the bottom end of an insertion rod to be inserted into the asphalt pavement when the handle is pressed. As the insertion rod moves, it moves the movable frame and the fixed box. The fixed box causes the stop block to continuously press against the limiting plate. This pressing action of the stop block moves the support rod, compressing the spring. When the bottom end of the insertion rod reaches the top surface of the underlying layer, the spring rebounds, locking the stop block and the limiting plate in place, fixing the position of the movable frame. The movable frame automatically moves the indicator plate to the indicated reading, thus achieving asphalt pavement thickness measurement. The operation is simple and improves the accuracy of the measurement. Attached Figure Description

[0023] Figure 1 This is a perspective view of the overall structure of this utility model; Figure 2 This is a rear view of the overall structure of this utility model; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view at point B Figure 5 This is an exploded view of the fixed box structure of this utility model; Figure 6 This is a cross-sectional view of the scale structure of this utility model.

[0024] Legend: 1. Handle; 2. Insert rod; 3. Fixing plate; 4. Moving frame; 5. Ruler; 6. First slide rail; 7. Fixing frame; 8. Limiting steel plate; 9. Limiting plate; 10. Pointing plate; 11. Fixing box; 12. Toggle block; 13. Limiting groove; 14. Stop block; 15. Square groove; 16. Second slide rail; 17. Third slide rail; 18. Support rod; 19. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0027] Combination Figure 1 This utility model discloses an asphalt pavement paving thickness measuring ruler, comprising a ruler 5, a fixed box 11 with a second slide rail 16 fixedly connected to the top and bottom of the inner wall, a third slide rail 17 slidably connected between the two second slide rails 16, the second slide rails 16 can limit the third slide rail 17 to prevent the third slide rail 17 from deviating when moving, a fixed frame 7 fixedly connected to the bottom of the front side of the ruler 5, an insert rod 2 passing through and slidably connected to the top of the fixed frame 7, the insert rod 2 can drive the fixed frame 7 to move, and the ruler 5 can limit the fixed frame 7, a limiting groove 13 is opened on one side of the outer wall of the fixed box 11, a lever 12 is provided on the inner wall of the limiting groove 13, the limiting groove 13 can fix the lever 12 to keep the lever 12 compressed on the spring 19, a first slide rail 6 fixedly connected between the fixed plate 3 and the fixed frame 7, the first slide rail 6 can limit the moving frame 4 to move only up and down, and the moving frame 4 is slidably connected to the inner wall of the first slide rail 6.

[0028] Combination Figures 1-6 A fixed plate 3 is fixedly connected to the top of the scale 5. A rod 2 is slidably connected through the top of the fixed plate 3. A handle 1 is fixedly connected to the top of the rod 2. The handle 1 can drive the rod 2 to be inserted into the asphalt pavement to detect the thickness of the asphalt pavement. A movable frame 4 is fixedly connected to one side of the outer ring of the rod 2. A pointing plate 10 is fixedly connected to one side of the inner wall of the movable frame 4. The handle 1 can indicate the reading on the scale 5 to improve the observation effect. A fixed box 11 is fixedly connected to one side of the outer wall of the movable frame 4. A square groove 15 is opened on one side of the outer wall of the fixed box 11. A stop 14 is slidably connected to the inner wall of the square groove 15. When the stop 14 moves, it can continuously move the limiting plate 9. The stop block 14 engages with the limiting plate 9 to fix the position of the guide plate 10. A support rod 18 is slidably connected through one side of the stop block 14. A spring 19 is sleeved on the outer ring of the support rod 18. The stop block 14 can drive the support rod 18 to move, thereby compressing the spring 19. A third slide rail 17 is fixedly connected to one side of the stop block 14. A lever 12 is slidably connected to the inner wall of the third slide rail 17. The third slide rail 17 can limit the lever 12. The lever 12 can drive the stop block 14 to move and release the engagement with the limiting plate 9. A limiting steel plate 8 is fixedly connected to the bottom of the scale 5. A limiting plate 9 is fixedly connected between the fixing plate 3 and the fixing frame 7.

[0029] Working principle: When using the measuring scale, place the limiting steel plate 8 and the scale 5 on the asphalt pavement, then press the handle 1 to drive the bottom end of the insertion rod 2 into the asphalt pavement. When the insertion rod 2 moves, it can drive the moving frame 4 and the fixed box 11 to move. The fixed box 11 drives the stop block 14 to continuously press the limiting plate 9. When the stop block 14 presses, it drives the support rod 18 to move. The movement of the support rod 18 can compress the spring 19. When the bottom end of the insertion rod 2 moves to the top surface of the underlying layer, the spring 19 rebounds, the stop block 14 resets, and the stop block 14 and the limiting plate 9 engage, thereby fixing the position of the moving frame 4. The moving frame 4 automatically drives the indicator plate 10 to point to the reading, realizing the measurement of the thickness of the asphalt pavement. The operation is simple and improves the measurement accuracy.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A measuring scale for asphalt pavement thickness, comprising a scale (5), characterized in that: The top of the scale (5) is fixedly connected to a fixed plate (3), the top of the fixed plate (3) is slidably connected to a rod (2), the top of the rod (2) is fixedly connected to a handle (1), a movable frame (4) is fixedly connected to one side of the outer ring of the rod (2), a pointing plate (10) is fixedly connected to one side of the inner wall of the movable frame (4), a fixed box (11) is fixedly connected to one side of the outer wall of the movable frame (4), a square groove (15) is opened on one side of the outer wall of the fixed box (11), a stop block (14) is slidably connected to the inner wall of the square groove (15), a support rod (18) is slidably connected to one side of the stop block (14), a spring (19) is sleeved on the outer ring of the support rod (18), a third slide rail (17) is fixedly connected to one side of the stop block (14), a lever block (12) is slidably connected to the inner wall of the third slide rail (17), a limiting steel plate (8) is fixedly connected to the bottom of the scale (5), and a limiting plate (9) is fixedly connected between the fixed plate (3) and the fixed frame (7).

2. The asphalt pavement paving thickness measuring scale according to claim 1, characterized in that: The top and bottom of the inner wall of the fixed box (11) are fixedly connected to the second slide rail (16), and the two second slide rails (16) are slidably connected to the third slide rail (17).

3. The asphalt pavement paving thickness measuring scale according to claim 1, characterized in that: The scale (5) is slidably connected to a movable frame (4) on the rear side, and a pointer plate (10) is slidably connected to one side of the scale (5).

4. The asphalt pavement paving thickness measuring scale according to claim 1, characterized in that: The ruler (5) is fixedly connected to a fixed frame (7) at the bottom front side, and a plug (2) is slidably connected through the top of the fixed frame (7).

5. The asphalt pavement paving thickness measuring scale according to claim 2, characterized in that: A support rod (18) is fixedly connected to one side of the inner wall of the fixed box (11).

6. The asphalt pavement paving thickness measuring scale according to claim 2, characterized in that: A limiting groove (13) is provided on one side of the outer wall of the fixed box (11), and a lever (12) is provided on the inner wall of the limiting groove (13).

7. The asphalt pavement paving thickness measuring scale according to claim 2, characterized in that: A first slide rail (6) is fixedly connected between the fixed plate (3) and the fixed frame (7), and a movable frame (4) is slidably connected to the inner wall of the first slide rail (6).

8. The asphalt pavement paving thickness measuring scale according to claim 2, characterized in that: The limiting plate (9) and the stop block (14) are engaged.

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