A road construction flatness measuring device
By introducing structures such as fixed frames, moving grooves, and swing grooves into the road construction flatness measuring device, and using counterweights to keep the measuring device horizontal, the problem of detection error of the trolley on uneven road surfaces is solved, and the accuracy and rapid judgment of the detection results are achieved.
Patent Information
- Application Number
- CN202411873537.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2044-12-18
AI Technical Summary
The existing road smoothness testing device is fixedly installed on a mobile trolley. When the trolley travels on uneven road surfaces, it can easily lead to errors in the test results.
A road surface smoothness measuring device was designed. It consists of a fixed frame, a moving groove, a swing groove, a through hole, a horizontal plate, an electric cylinder, a rotating seat, a rotating shaft, a connecting column, and a counterweight. The counterweight keeps the inspection mechanism horizontal under the action of gravity, reducing detection errors. The device also facilitates quick identification of uneven road surfaces through a moving cavity, a connecting plate, a vertical plate, a color card, and an observation port.
It effectively reduces detection errors when the vehicle is driving on uneven road surfaces, ensures the accuracy of detection results, and provides convenience for quickly identifying the location of road unevenness.
Smart Images
Figure CN119618043B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of road smoothness testing technology, specifically to a road smoothness measuring device for road construction. Background Technology
[0002] Roads and bridges generally consist of several major parts, including roadbed, pavement, bridges, tunnels, and traffic engineering facilities. After the construction of road and bridge projects is completed, the quality of the pavement needs to be inspected, including the measurement of pavement smoothness. Smoothness measuring devices are required when testing pavement smoothness.
[0003] Existing road smoothness testing devices are all fixedly installed on a mobile trolley, and the testing is carried out by pushing the trolley to move. However, this testing method has some drawbacks. For example, if the trolley's wheels travel on an uneven road surface during the movement of the trolley, the testing device on the trolley will tilt along with the trolley, which will lead to errors in the test results. Summary of the Invention
[0004] The purpose of this invention is to provide a road surface smoothness measuring device, which solves the problem that existing smoothness testing devices are all fixedly installed on a mobile trolley, and when the trolley's wheels travel on uneven road surfaces, the test results are prone to errors.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a road construction flatness measuring device, comprising a movable platform and an inspection mechanism. A fixed frame is fixedly connected to the top of the movable platform. A movable groove and a swing groove are provided on the left side wall of the fixed frame, with the swing groove located below the movable groove. A through hole is provided on the left side wall of the movable platform, corresponding to the swing groove. Sliding holes are provided on both the front and rear inner walls of the movable groove. A horizontal plate is slidably connected inside the sliding holes. A rotating seat is fixedly connected to the bottom of the horizontal plate. A rotating shaft is rotatably connected to the inner wall of the rotating seat. A connecting column is fixedly connected to the circumference of the rotating shaft. A counterweight is fixedly connected to the bottom end of the connecting column. Two electric cylinders are fixedly connected to the top of the movable platform and symmetrically arranged on the front and rear sides of the fixed frame. The movable end of each electric cylinder is fixedly connected to the horizontal plate. A connecting shaft is fixedly connected to the left end of the rotating shaft, and the left end of the connecting shaft is fixedly connected to the inspection mechanism.
[0006] An adjustment groove is provided on the right inner wall of the movable groove. A friction block is slidably connected inside the adjustment groove. An adjustment rod is rotatably connected to the right side wall of the friction block, and the adjustment rod is threadedly connected to the fixed frame.
[0007] Preferably, the inspection mechanism includes a mounting plate, a fixed bracket, a fixed cylinder, a sliding cavity, a sliding plate, a vertical rod, a spring, a measuring wheel, a measuring plate, an indicator, a through groove, a scale mark, a movable cavity, a connecting plate, a vertical plate, a color card, and an observation port. The mounting plate is fixedly connected to the left end of the connecting shaft, the fixed bracket is fixedly connected to the left side wall of the mounting plate, the fixed cylinder is fixedly connected to the left end of the fixed bracket, the sliding cavity is disposed inside the fixed cylinder, the sliding plate is slidably connected inside the sliding cavity, the vertical rod is fixedly connected to the sliding plate and slidably connected to the fixed cylinder, the spring is fixed to the top of the sliding plate and is sleeved on the vertical rod, and the measuring wheel... The measuring wheel is fixedly connected to the bottom end of the vertical rod, the measuring plate is fixedly connected to the top end of the vertical rod, the indicator is fixedly connected to the right end of the measuring plate, the through groove is set on the side wall of the mounting plate, and the measuring plate is slidably connected inside the through groove, the scale is set on the right side wall of the mounting plate, and the scale is set corresponding to the through groove, the movable cavity is set inside the mounting plate, and the movable cavity is located above the through groove, the connecting plate is fixedly connected to the top of the measuring plate, the vertical plate is set inside the movable cavity, and the connecting plate is fixedly connected to the vertical plate, the color card is set on the right side wall of the vertical plate, and the observation port is set on the right side wall of the movable cavity.
[0008] Preferably, the fixed bracket, fixed cylinder, sliding cavity, sliding plate, vertical rod, spring, measuring wheel, measuring plate, indicator, through groove, scale mark, movable cavity, connecting plate, vertical plate, color card and observation port are all provided in multiple quantities and are evenly arranged on the mounting plate. The top surface shape of the sliding cavity and the sliding plate are both square.
[0009] Preferably, the inside of the horizontal plate is provided with a locking hole, and a positioning rod is threadedly connected to the right side wall of the fixing frame, and the positioning rod is set corresponding to the locking hole.
[0010] Preferably, a push handle is fixedly connected to the top of the mobile platform, and the push handle is located on the right side of the fixed frame, and a controller is provided on the right side wall of the fixed frame.
[0011] Preferably, the mobile platform is equipped with four wheels at the bottom corners, and a power source is provided at the bottom right side edge of the mobile platform.
[0012] The beneficial effects of this invention are as follows:
[0013] 1. This invention, by setting up a fixed frame, a moving groove, a swing groove, a through hole, a horizontal plate, an electric cylinder, a rotating seat, a rotating shaft, a connecting column, a counterweight, an adjusting groove, a friction block, and an adjusting rod, utilizes the counterweight to always be perpendicular to the horizontal plane under the action of gravity to control the inspection mechanism to remain horizontal, thereby reducing the problem of errors in the detection results caused by the trolley's moving wheels traveling on uneven road surfaces.
[0014] 2. This invention, by setting up an active cavity, connecting plate, vertical plate, color card and observation port, makes it easy for inspectors to quickly determine the location of uneven road surfaces. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a road construction smoothness measuring device proposed in this invention;
[0016] Figure 2 This is a side sectional view of a road construction smoothness measuring device proposed in this invention;
[0017] Figure 3 This is a front sectional view of a partial fixing frame of a road construction smoothness measuring device proposed in this invention;
[0018] Figure 4 This is a front view of a road construction smoothness measuring device proposed in this invention;
[0019] Figure 5 This is a front sectional view of the fixed cylinder of a road construction smoothness measuring device proposed in this invention;
[0020] Figure 6 for Figure 1 Schematic diagram of structure A in the middle;
[0021] Figure 7 This is a partial front sectional view of the mounting plate of a road construction smoothness measuring device proposed in this invention.
[0022] Figure 8 This is a bottom view of a road construction smoothness measuring device proposed in this invention;
[0023] Figure 9 This is a left view of a road construction smoothness measuring device proposed in this invention.
[0024] The components are as follows: 1. Moving platform; 2. Moving wheel; 3. Fixed frame; 4. Moving groove; 5. Swing groove; 6. Through hole; 7. Sliding hole; 8. Horizontal plate; 9. Electric cylinder; 10. Rotating seat; 11. Rotating shaft; 12. Connecting column; 13. Counterweight; 14. Adjusting groove; 15. Friction block; 16. Adjusting rod; 17. Positioning rod; 18. Push handle; 19. Mounting plate; 20. Fixed bracket; 21. Fixed cylinder; 22. Sliding cavity; 23. Slide plate; 24. Vertical rod; 25. Spring; 26. Measuring wheel; 27. Measuring plate; 28. Indicator; 29. Through groove; 30. Scale mark; 31. Movable cavity; 32. Connecting plate; 33. Vertical plate; 34. Color card; 35. Observation port; 36. Power supply; 37. Controller; 38. Locking hole; 39. Connecting shaft. Detailed Implementation
[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0026] Example 1:
[0027] like Figure 1-9 As shown, this embodiment of the invention provides a road construction flatness measuring device, including a movable platform 1 and an inspection mechanism. A fixed frame 3 is fixedly connected to the top of the movable platform 1. The fixed frame 3 is mainly used for the installation of a counterweight 13. A movable groove 4 and a swing groove 5 are provided on the left side wall of the fixed frame 3, and the swing groove 5 is located below the movable groove 4. The movable groove 4 and the swing groove 5 facilitate the rotation of the counterweight 13. A through hole 6 is provided on the left side wall of the movable platform 1, and the through hole 6 is correspondingly provided to the swing groove 5. Sliding holes 7 are provided on the front and rear inner walls of the movable groove 4. The sliding holes 7 facilitate the electric cylinder 9 to control the horizontal plate 8 to drive the counterweight 13 to move up and down. When the horizontal plate 8 moves to the bottom of the sliding hole 7, it is in the working state. When not in use, the electric cylinder 9 moves the horizontal plate 8 to the top of the sliding hole 7. At this time, the counterweight 13 contacts the top of the swing groove 5, thereby preventing the counterweight 13 from swinging. The horizontal plate 8 is slidably connected inside the sliding hole 7. A rotating seat 10 is fixedly connected to the bottom of the 8. A rotating shaft 11 is rotatably connected to the inner wall of the rotating seat 10. A connecting column 12 is fixedly connected to the circumferential surface of the rotating shaft 11. A counterweight 13 is fixedly connected to the bottom end of the connecting column 12. The counterweight 13 is mainly used to control the inspection mechanism to keep it horizontal. The counterweight 13 always keeps the horizontal plane vertical under the action of gravity. It should be noted that a friction block 15 is set in this application to limit the friction of the counterweight 13 and prevent the counterweight 13 from swaying due to small shaking. The moving car plate 1 should not move too fast and should move forward slowly. Two electric cylinders 9 are fixedly connected to the top of the moving car plate 1 and are symmetrically arranged on the front and rear sides of the fixed frame 3. The movable end of the electric cylinder 9 is fixedly connected to the horizontal plate 8. A connecting shaft 39 is fixedly connected to the left end of the rotating shaft 11. The left end of the connecting shaft 39 is fixedly connected to the inspection mechanism. The setting of the rotating shaft 11 and the connecting shaft 39 makes it convenient for the counterweight 13 to drive the inspection mechanism to rotate together and keep them synchronized.
[0028] An adjustment groove 14 is provided on the right inner wall of the moving groove 4. A friction block 15 is slidably connected inside the adjustment groove 14. An adjustment rod 16 is rotatably connected to the right side wall of the friction block 15, and the adjustment rod 16 is threadedly connected to the fixed frame 3. The friction block 15 is controlled to contact or press against the counterweight block 13 through the adjustment rod 16.
[0029] The inspection mechanism includes a mounting plate 19, a fixed bracket 20, a fixed cylinder 21, a sliding cavity 22, a sliding plate 23, a vertical rod 24, a spring 25, a measuring wheel 26, a measuring plate 27, an indicator 28, a through groove 29, a scale mark 30, a movable cavity 31, a connecting plate 32, a vertical plate 33, a color card 34, and an observation port 35. The sliding cavity 22 facilitates the sliding plate 23's up-and-down movement within the fixed cylinder 21. When inspecting road surface smoothness, the sliding plate 23 moves the vertical rod 24 upwards, indicating a road surface bulge; conversely, the sliding plate 23 moves the vertical rod 24 downwards, indicating a road surface depression. During inspection, when the horizontal plate 8 moves to the bottom of the sliding hole 7, the sliding plate 23 is in the middle position (initial position) of the sliding cavity 22. The measuring wheel 26 facilitates rolling on the road surface. The through groove 29 facilitates the measuring plate 27's up-and-down movement within the mounting plate 19, thereby causing the indicator 28 to move up and down on the scale mark 30, allowing personnel to easily understand the situation. The data on road surface bumps or depressions, along with the arrangement of the movable cavity 31, connecting plate 32, vertical plate 33, color card 34, and observation port 35, facilitate inspectors' ability to quickly identify the location of road surface irregularities. Therefore, the detection location is crucial, and a clear reference point is needed to alert inspectors. This application uses color cards 34 to remind workers. The principle is that multiple lines of different colors are set on the color card 34, arranged from top to bottom. The width of each line is the same as the width of the observation port 35. Initially, the positions of multiple color cards 34 are identical, and the colors seen through the observation port 35 are the same. During the road surface smoothness detection process, when the position of the measuring plate 27 changes, the color card 34 also changes accordingly. Therefore, the color seen by the worker through the observation port 35 changes, thus indicating road surface unevenness. Afterwards, the worker uses the position of the corresponding indicator 28 on the scale 30 to determine the data on bumps or depressions.
[0030] Mounting plate 19 is fixedly connected to the left end of connecting shaft 39. Fixing bracket 20 is fixedly connected to the left side wall of mounting plate 19. Fixing cylinder 21 is fixedly connected to the left end of fixing bracket 20. Sliding cavity 22 is located inside fixing cylinder 21. Sliding plate 23 is slidably connected inside sliding cavity 22. Vertical rod 24 is fixedly connected to sliding plate 23 and slidably connected to fixing cylinder 21. Spring 25 is fixed to the top of sliding plate 23 and sleeved on vertical rod 24. Measuring wheel 26 is fixedly connected to the bottom end of vertical rod 24. Measuring plate 27 is fixedly connected to the top end of vertical rod 24. Indicator 28 is fixedly connected to the right end of measuring plate 27. Through groove 29 is located on the side wall of mounting plate 19, and measuring plate 27 is slidably connected inside through groove 29. Scale mark 30 is located on the right side wall of mounting plate 19 and is slidably connected to through groove 29. Correspondingly, the movable cavity 31 is located inside the mounting plate 19 and above the through groove 29. The connecting plate 32 is fixedly connected to the top of the measuring plate 27. The vertical plate 33 is located inside the movable cavity 31 and is fixedly connected to the connecting plate 32 and the vertical plate 33. The color card 34 is located on the right side wall of the vertical plate 33. The observation port 35 is located on the right side wall of the movable cavity 31. The number of fixed bracket 20, fixed cylinder 21, sliding cavity 22, sliding plate 23, vertical rod 24, spring 25, measuring wheel 26, measuring plate 27, indicator 28, through groove 29, scale mark 30, movable cavity 31, connecting plate 32, vertical plate 33, color card 34 and observation port 35 are all provided in multiples and are evenly distributed on the mounting plate 19. The sliding cavity 22 and the sliding plate 23 are both square in shape to prevent the vertical rod 24 from driving the measuring wheel 26 to rotate.
[0031] The horizontal plate 8 has a locking hole 38 inside. A positioning rod 17 is threadedly connected to the right side wall of the fixing frame 3, and the positioning rod 17 is correspondingly set with the locking hole 38. When the horizontal plate 8 moves to the top of the sliding hole 7, the positioning rod 17 is screwed into the locking hole 38 to fix the horizontal plate 8 and prevent the electric cylinder 9 from suddenly losing power. A push handle 18 is also fixedly connected to the top of the moving plate 1, and the push handle 18 is located on the right side of the fixing frame 3. The push handle 18 is used to control the movement of the moving plate 1. A controller 37 is set on the right side wall of the fixing frame 3. The controller 37 is equipped with a control button to control the operation of the electric cylinder 9. Moving wheels 2 are installed at the four corners of the bottom of the moving plate 1. A power supply 36 is set at the edge of the bottom right side wall of the moving plate 1. The power supply 36 mainly provides power to the electric cylinder 9. The power supply 36 is rechargeable.
[0032] Working principle: When in use, the operator first unscrews the positioning rod 17 from the inside of the card hole 38. Then, the electric cylinder 9 controls the horizontal plate 8 to move to the bottom of the sliding hole 7. At this time, the inspection mechanism remains horizontal under the action of the counterweight 13. Then, the operator controls the moving plate 1 to move slowly through the push handle 18. During the movement, the operator can quickly check whether the road surface is flat through the observation port 35.
[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A road construction flatness measuring device, comprising a moving platform (1) and an inspection mechanism, characterized in that: A fixed frame (3) is fixedly connected to the top of the mobile platform (1). A moving groove (4) and a swing groove (5) are provided on the left side wall of the fixed frame (3), and the swing groove (5) is located below the moving groove (4). A through hole (6) is provided on the left side wall of the mobile platform (1), and the through hole (6) is correspondingly provided to the swing groove (5). Sliding holes (7) are provided on the front and rear inner walls of the moving groove (4). A horizontal plate (8) is slidably connected inside the sliding hole (7). A rotating seat (10) is fixedly connected to the bottom of the horizontal plate (8). A rotating shaft (11) is rotatably connected to the inner wall of the moving seat (10). A connecting column (12) is fixedly connected to the circumferential surface of the rotating shaft (11). A counterweight (13) is fixedly connected to the bottom end of the connecting column (12). Two electric cylinders (9) are fixedly connected to the top of the moving car plate (1) and are symmetrically arranged on the front and rear sides of the fixed frame (3). The movable end of the electric cylinder (9) is fixedly connected to the horizontal plate (8). A connecting shaft (39) is fixedly connected to the left end of the rotating shaft (11). The left end of the connecting shaft (39) is fixedly connected to the inspection mechanism. An adjustment groove (14) is provided on the right inner wall of the moving groove (4). A friction block (15) is slidably connected inside the adjustment groove (14). An adjustment rod (16) is rotatably connected on the right side wall of the friction block (15), and the adjustment rod (16) is threadedly connected to the fixing frame (3). The inspection mechanism includes a mounting plate (19), a fixed bracket (20), a fixed cylinder (21), a sliding cavity (22), a sliding plate (23), a vertical rod (24), a spring (25), a measuring wheel (26), a measuring plate (27), an indicator (28), a through groove (29), a scale mark (30), a movable cavity (31), a connecting plate (32), a vertical plate (33), a color card (34), and an observation port (35). The mounting plate (19) is fixedly connected to the left end of the connecting shaft (39). The bracket (20) is fixedly connected to the left side wall of the mounting plate (19), the fixing cylinder (21) is fixedly connected to the left end of the fixed bracket (20), the sliding cavity (22) is disposed inside the fixing cylinder (21), the sliding plate (23) is slidably connected inside the sliding cavity (22), the vertical rod (24) is fixedly connected to the sliding plate (23), and the vertical rod (24) is slidably connected to the fixing cylinder (21), the spring (25) is fixed to the top of the sliding plate (23), and the spring (25) is sleeved on... On the vertical rod (24), the measuring wheel (26) is fixedly connected to the bottom end of the vertical rod (24), the measuring plate (27) is fixedly connected to the top end of the vertical rod (24), the indicator (28) is fixedly connected to the right end of the measuring plate (27), the through groove (29) is provided on the side wall of the mounting plate (19), and the measuring plate (27) is slidably connected inside the through groove (29). The scale mark (30) is provided on the right side wall of the mounting plate (19), and the scale mark (30) is connected to the through groove (29). 9) Correspondingly, the movable cavity (31) is located inside the mounting plate (19) and above the through groove (29). The connecting plate (32) is fixedly connected to the top of the measuring plate (27). The vertical plate (33) is located inside the movable cavity (31) and the connecting plate (32) is fixedly connected to the vertical plate (33). The color card (34) is located on the right side wall of the vertical plate (33). The observation port (35) is located on the right side wall of the movable cavity (31).
2. The road construction smoothness measuring device according to claim 1, characterized in that: The fixed bracket (20), fixed cylinder (21), sliding cavity (22), sliding plate (23), vertical rod (24), spring (25), measuring wheel (26), measuring plate (27), indicator (28), through groove (29), scale mark (30), movable cavity (31), connecting plate (32), vertical plate (33), color card (34) and observation port (35) are all provided in multiple quantities and are evenly arranged on the mounting plate (19). The sliding cavity (22) and sliding plate (23) are both square in shape on their top surfaces.
3. The road construction smoothness measuring device according to claim 1, characterized in that: The inside of the horizontal plate (8) is provided with a card hole (38), and a positioning rod (17) is threadedly connected to the right side wall of the fixing frame (3), and the positioning rod (17) is correspondingly set with the card hole (38).
4. The road construction smoothness measuring device according to claim 1, characterized in that: A push handle (18) is fixedly connected to the top of the mobile platform (1), and the push handle (18) is located on the right side of the fixed frame (3). A controller (37) is provided on the right side wall of the fixed frame (3).
5. The road construction smoothness measuring device according to claim 1, characterized in that: The bottom four corners of the mobile platform (1) are equipped with moving wheels (2), and the bottom right side wall edge of the mobile platform (1) is provided with a power supply (36).
Citation Information
Patent Citations
Digital road surface monitoring system
CN114322860A
Apparatus for measuring pavement roughness
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