Roadbed pavement flatness detection ruler

Abstract

The utility model discloses a roadbed pavement flatness detection ruler, which comprises a plurality of sub-ruler bodies and a locking connection buckle structure, flatness measuring mechanisms are arranged on the sub-ruler bodies, and the sub-ruler bodies are hinged through a hinge rotating shaft; the locking connection buckle structure is used for locking and fixing the sub ruler bodies to enable the sub ruler bodies to be fixed in a folded state or an unfolded state, and comprises a first lock catch assembly for locking and fixing the hinged ends of the sub ruler bodies and a second lock catch assembly for locking and fixing the free ends of the sub ruler bodies. The roadbed and pavement flatness detection ruler with a folded state or an unfolded state is formed in a manner of combining and locking the plurality of sub ruler bodies, can be flexibly suitable for various flatness detection scenes, and has the advantages of simple structure, convenience in operation and the like; the level tube structure is used for detecting and intuitively reflecting the measured flatness, and the level tube adjusting mechanism is arranged for correcting the level tube, so that the level state of the level tube can be adjusted, and the measurement accuracy is ensured.

Description

Technical Field

[0001] This utility model relates to the field of traffic engineering testing equipment technology, and in particular to a roadbed and pavement flatness testing ruler. Background Technology

[0002] As the name suggests, a surface evenness gauge is a tool used to inspect the evenness of surfaces. Its application in traffic engineering is very common; for example, after road surface paving is completed, its evenness needs to be measured to check whether it meets engineering construction standards. Currently, when inspecting road surface evenness, a single, fixed-length gauge is typically used. To facilitate use and storage, fixed-length gauges are generally not designed to be too long. This limited length restricts the application range of the evenness inspection device. For large-scale road surface evenness inspections, multiple inspections or the use of multiple gauges is required, which is not only cumbersome and inefficient but also prone to amplifying errors due to inaccurate operation, leading to excessively large errors in the results and affecting both inspection and project quality. Based on these technical problems, there is a need to improve and optimize the existing evenness gauge structure. While ensuring inspection quality, the design should prioritize simplicity and ease of operation to make the evenness gauge better suited for inspecting the evenness of roadbeds and pavements in traffic engineering. Summary of the Invention

[0003] This utility model addresses the aforementioned problems by providing a roadbed and pavement smoothness testing ruler, comprising several ruler bodies and a locking connection structure; each ruler body is equipped with a smoothness measuring mechanism, and the ruler bodies are hinged together via hinged pivots; the locking connection structure is used to lock and fix the ruler bodies together in a closed or unfolded state, and includes a first locking assembly for locking and fixing the hinged ends of the ruler bodies and a second locking assembly for locking and fixing the free ends of the ruler bodies.

[0004] As a further explanation of this utility model, the measuring body includes a first measuring body and a second measuring body, the first locking assembly is disposed at the hinge end of the first measuring body and the second measuring body, and the second locking assembly is disposed at the free end of the first measuring body and the second measuring body.

[0005] Furthermore, the first locking assembly includes a locking piece and a locking knob, the locking knob being disposed on an adjacent measuring body; one end of the locking piece is rotatably disposed on the rotating shaft of the locking knob, and the other end has a locking slot.

[0006] Furthermore, the flatness measuring mechanism is a level tube measuring mechanism, including a level tube and a level tube adjustment mechanism, wherein the level tube adjustment mechanism is used for the calibration of the level tube.

[0007] Furthermore, the level tube adjustment mechanism includes an adjustment screw and an adjustment rod, one end of which is connected to the level tube, and the other end abuts against the adjustment screw.

[0008] Furthermore, the second locking assembly includes a first L-shaped sleeve and a second L-shaped sleeve, which are respectively installed on the free ends of two adjacent measuring bodies, and the first L-shaped sleeve and the second L-shaped sleeve have matching snap-fit ​​structures.

[0009] Furthermore, the first L-shaped sleeve and the second L-shaped sleeve are detachably or movably mounted on the free end of the measuring body.

[0010] The beneficial effects of this utility model are:

[0011] This utility model forms a roadbed and pavement smoothness testing ruler with a closed or unfolded state by combining and locking several measuring bodies. It can be flexibly applied to various smoothness testing scenarios and has the advantages of simple structure and convenient operation. The level tube structure test provides a direct reflection of the measured smoothness, and a level tube adjustment mechanism is set to correct the level tube, which can adjust the level tube's horizontal state to ensure the accuracy of the measurement. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the folding of the roadbed and pavement smoothness testing ruler according to an embodiment of the present utility model;

[0013] Figure 2 This is a schematic diagram of the horizontal measuring mechanism in an embodiment of the present invention;

[0014] Figure 3 This is a schematic diagram of the hinged end structure of the first and second rulers in an embodiment of this utility model. Figure 1 ;

[0015] Figure 4 This is a schematic diagram of the hinged end structure of the first and second rulers in an embodiment of this utility model. Figure 2 ;

[0016] Figure 5 This is a schematic diagram of the free ends of the first and second rulers in an embodiment of this utility model;

[0017] Figure 6 This is a diagram showing the locking and fixing state of the roadbed and pavement flatness testing ruler in an embodiment of this utility model.

[0018] Figure 7 This is a cross-sectional view of the horizontal measuring mechanism according to an embodiment of the present invention.

[0019] Figure reference numerals: 1. Hinged pivot; 2. First ruler body; 3. Second ruler body; 4. Locking plate; 5. Locking knob; 6. Locking latch; 7. Level tube; 8. Detection bubble; 9. Adjusting screw; 10. Adjusting rod; 11. First L-shaped sleeve; 12. Second L-shaped sleeve; 13. Snap-fit ​​structure. Detailed Implementation

[0020] Example:

[0021] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0023] As attached Figure 1-7 As shown in this embodiment, a roadbed pavement smoothness testing ruler includes several ruler sections and a locking connection structure. A smoothness measuring mechanism is provided on each ruler section, and the ruler sections are hinged together via a hinge shaft 1. The locking connection structure is used to lock and fix the ruler sections together in a closed or unfolded state, including a first locking assembly for locking the hinged ends of the ruler sections and a second locking assembly for locking the free ends of the ruler sections. This roadbed pavement smoothness testing ruler, formed by combining and locking several ruler sections, can flexibly adapt to various smoothness testing scenarios and has advantages such as simple structure and convenient operation.

[0024] Specifically, in this embodiment, the measuring scale includes a first measuring scale 2 and a second measuring scale 3. The first locking assembly is disposed at the hinge end of the first measuring scale 2 and the second measuring scale 3, and is used to lock and fix the hinge end when the measuring scale is closed or unfolded to ensure the stability of the connection. The second locking assembly is disposed at the free end of the first measuring scale 2 and the second measuring scale 3, and is used to lock and fix the free end to prevent the measuring scale from loosening or shifting during the detection process, thereby ensuring the accuracy of the detection results.

[0025] In this embodiment, the first locking assembly includes a locking piece 4 and a locking knob 5, the locking knob 5 being disposed on adjacent measuring scale bodies; one end of the locking piece 4 is rotatably mounted on the rotating shaft of the locking knob 5, and the other end has a locking slot 6. In use, the locking piece 4 is rotated to engage with the locking knob 5 of the adjacent measuring scale body, and then the locking knob 5 is tightened. The locking piece 4's restraining effect on the measuring scale bodies achieves a secure connection between them. With this structural design, the first locking assembly can provide reliable locking and fixing at the hinge end of the measuring scale body, ensuring the stability of the measuring scale during use.

[0026] In this embodiment, the smoothness measuring mechanism is a level tube measuring mechanism, including a level tube 7 and a level tube adjustment mechanism. The level tube adjustment mechanism is used to calibrate the level tube 7. The level tube 7 is a commonly used measuring tool for detecting the smoothness of the roadbed and pavement. The function of the level tube adjustment mechanism is to calibrate the level tube 7 to ensure the accuracy of the measurement. By adjusting the level tube adjustment mechanism, the horizontal state of the level tube 7 can be adjusted so that it can accurately reflect the smoothness of the roadbed and pavement. Ideally, the detection bubble 8 of the level tube 7 is in the exact center position. In actual testing, by observing the position of the detection bubble 8 inside the level tube 7 relative to the scale line, the smoothness of the surface being tested can be reflected according to the direction and degree of its deviation.

[0027] In this embodiment, the level tube adjustment mechanism includes an adjusting screw 9 and an adjusting rod 10. One end of the adjusting rod 10 is connected to the level tube 7, and the other end abuts against the adjusting screw 9. By rotating the adjusting screw 9, the position of the adjusting rod 10 can be adjusted, thereby driving the level tube 7 to make fine adjustments. This adjustment method can accurately correct the horizontal state of the level tube 7 and ensure the accuracy of the measurement results. The combined use of the adjusting screw 9 and the adjusting rod 10 provides a simple and effective correction method for the level tube measurement mechanism. When necessary, it can be corrected before the roadbed and pavement flatness measuring ruler is used to ensure the accuracy of the flatness test. For example, a horizontal straight wooden or aluminum profile is installed vertically on the wall and adjusted to be vertical by a plumb line. Then, the roadbed and pavement flatness measuring ruler is placed on a standard horizontal object, and the adjusting screw 9 is adjusted with a screwdriver until the bubble is centered to complete the correction work.

[0028] In this embodiment, the second locking assembly includes a first L-shaped sleeve 11 and a second L-shaped sleeve 12. The first L-shaped sleeve 11 and the second L-shaped sleeve 12 are respectively installed on the free ends of two adjacent measuring scales. The first L-shaped sleeve 11 and the second L-shaped sleeve 12 have matching snap-fit ​​structures 13. In order to lock the free ends of the measuring scales, the first L-shaped sleeve 11 and the second L-shaped sleeve 12 are designed with matching snap-fit ​​structures 13. When the measuring scales are in a closed or unfolded state, the free ends of the measuring scales can be firmly locked and fixed through the mutual cooperation of the snap-fit ​​structures 13. This allows the second locking assembly to effectively prevent the measuring scales from loosening or shifting during the testing process, ensuring the overall stability of the measuring scale and thus improving the reliability of the testing results.

[0029] In this embodiment, the first L-shaped sleeve 11 and the second L-shaped sleeve 12 are detachably or movably mounted on the free end of the measuring scale. This detachable or movable mounting method facilitates the use and maintenance of the measuring scale. On the one hand, users can quickly install or remove the first L-shaped sleeve 11 and the second L-shaped sleeve 12 according to actual testing needs, thereby adjusting the length and state of the measuring scale. On the other hand, this design also facilitates individual maintenance or replacement of the first L-shaped sleeve 11 and the second L-shaped sleeve 12, reducing the maintenance cost of the measuring scale and increasing its service life.

[0030] The above description only illustrates preferred embodiments of the present invention and should not be construed as limiting the scope of the claims. The present invention is not limited to the above embodiments, and variations in its specific structure are permitted. In short, all changes made within the scope of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A roadbed and pavement smoothness testing ruler, characterized in that: It includes several measuring scales and a locking connection structure; each measuring scale is equipped with a flatness measuring mechanism, and the measuring scales are hinged together by a hinge shaft; the locking connection structure is used to lock and fix the measuring scales together to a closed or unfolded state, and includes a first locking assembly for locking and fixing the hinged ends of the measuring scales and a second locking assembly for locking and fixing the free ends of the measuring scales.

2. The roadbed and pavement smoothness testing ruler as described in claim 1, characterized in that: The measuring body includes a first measuring body and a second measuring body. The first locking assembly is disposed at the hinge end of the first measuring body and the second measuring body, and the second locking assembly is disposed at the free end of the first measuring body and the second measuring body.

3. The roadbed and pavement smoothness testing ruler as described in claim 1 or 2, characterized in that: The first locking assembly includes a locking piece and a locking knob, the locking knob being disposed on an adjacent measuring body; one end of the locking piece is rotatably disposed on the rotating shaft of the locking knob, and the other end has a locking slot.

4. The roadbed and pavement smoothness testing ruler as described in claim 3, characterized in that: The flatness measuring mechanism is a level tube measuring mechanism, which includes a level tube and a level tube adjustment mechanism. The level tube adjustment mechanism is used for the calibration of the level tube.

5. The roadbed and pavement smoothness testing ruler as described in claim 4, characterized in that: The level tube adjustment mechanism includes an adjustment screw and an adjustment rod. One end of the adjustment rod is connected to the level tube, and the other end abuts against the adjustment screw.

6. The roadbed and pavement smoothness testing ruler as described in claim 2, characterized in that: The second locking assembly includes a first L-shaped sleeve and a second L-shaped sleeve, which are respectively installed on the free ends of two adjacent measuring bodies, and have matching snap-fit ​​structures on the first L-shaped sleeve and the second L-shaped sleeve.

7. The roadbed and pavement smoothness testing ruler as described in claim 6, characterized in that: The first L-shaped sleeve and the second L-shaped sleeve are detachably or movably mounted on the free end of the measuring body.

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