Pavement cast-in-place layer flatness detection device

By designing a cast-in-place flatness detection device for pavement with active pulleys, threaded rods and movable plates, the problem of fixed detection width in the prior art is solved, flexible adjustment of detection spacing and adapting to the detection of pavement surfaces of different widths is achieved, various detection needs are met, and the reliability of marking is improved.

CN222771281UActive Publication Date: 2025-04-18SHAANXI OVERSEAS ENG CONSTR CO LTD
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Patent Information

Application Number
CN202421581017.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-05
Publication Date
2025-04-18
Estimated Expiration
2034-07-05

AI Technical Summary

Technical Problem

The detection width of the existing cast-in-place pavement layer flatness detection device is fixed, and cannot adapt to pavement detection work of different width types and cannot meet the usage requirements.

Method used

A detection device including an active pulley, a threaded rod and a movable plate is designed. The rotation of the active pulley drives the threaded rod and a movable plate to achieve flexible adjustment of detection spacing and adapt to the detection of road surfaces of different widths.

Benefits of technology

The adaptability of the detection device in road surface inspection work of different widths is realized, various detection needs are met, and the risk of marking failure in strong winds is avoided through a new marking mechanism.

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Abstract

The utility model relates to the technical field of flatness detection, and discloses a pavement cast-in-place layer flatness detection device, which comprises a mounting rack and a connecting belt, the inner side of the mounting rack is fixedly connected with a double-head motor, the output end of the double-head motor is fixedly connected with a driving belt pulley, the front side of the top of the mounting rack is fixedly connected with a fixing rack, and the fixing rack is fixedly connected with the connecting belt. The left end and the right end of the fixing frame are rotationally connected with driven belt wheels, the driving belt wheels are in transmission connection with the driven belt wheels through the connecting belts, fan blades are installed on the outer sides of the driven belt wheels, and threaded rods are fixedly connected to the outer sides of the driving belt wheels. According to the utility model, the rotation of the driving belt pulley drives the threaded rod to rotate synchronously, the rotation of the threaded rod drives the movable plate to move, and the movement of the movable plate drives the detection mechanism installed at the front side to move synchronously, so that the detection distance is increased, and the detection device can adapt to the detection work of road surfaces with different widths.
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Description

Technical Field

[0001] The utility model relates to the technical field of flatness detection, in particular to a device for detecting the flatness of a cast-in-place layer of a road surface. Background Art

[0002] The cast-in-place pavement layer flatness detection device is a device used to evaluate the flatness of roads or other paved surfaces. It can measure and record parameters such as the geometric shape, surface height difference and flatness of the road or paved surface to check the paving quality and evaluate whether it meets the specified standards. By deploying the cast-in-place pavement layer flatness detection device, workers can quickly and accurately detect and evaluate the road surface after the paving project is completed, so that problems arising in the paving process can be discovered and resolved in a timely manner to ensure the flatness of the road and driving safety.

[0003] After searching, the Chinese patent announcement number is: CN218211305U, which discloses a bridge deck cement concrete cast-in-place layer flatness detection device, including a mounting plate, a roller is arranged on the lower surface of the mounting plate, an inclination sensor is embedded on the lower surface of the mounting plate, a mounting frame is fixedly connected to the upper surface of the mounting plate, a buzzer is fixedly connected to the upper surface of the mounting frame, a through groove is opened on the upper surface of the mounting plate, a storage cylinder is fixedly connected to the inner wall of the through groove, a connecting rod is slidably connected to the inner wall of the storage cylinder, and a blocking block is fixedly connected to the surface of the connecting rod. The bridge deck cement concrete cast-in-place layer flatness detection device injects lime powder into the storage cylinder, pushes the handle to drive the mounting plate to move, and uses the inclination sensor to detect the flatness of the bridge deck. When it is detected that the road surface flatness is unqualified, the buzzer sounds an alarm. At the same time, the connecting rod is pressed to drive the blocking block to disengage from the leakage groove, so that the lime powder in the storage cylinder can be discharged from the leakage port, and then the flatness of the bridge deck can be quickly measured and marked. However, during the use of the device, its detection width is fixed, and it cannot adapt to road surface detection work of different width types, and thus cannot meet the needs of use. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a road surface cast-in-place layer flatness detection device, which aims to improve the problem in the prior art that the detection width is fixed and cannot adapt to road surface detection work of different width types.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a device for detecting the flatness of a cast-in-place layer of a road surface, comprising a mounting frame and a connecting belt, a double-headed motor is fixedly connected to the inner side of the mounting frame, the output ends of the double-headed motor are fixedly connected to a driving pulley, the top front side of the mounting frame is fixedly connected to a fixing frame, the left and right ends of the fixing frame are rotatably connected to driven pulleys, the driving pulley is transmission-connected to the driven pulley through the connecting belt, a fan blade is installed on the outer side of the driven pulley, a threaded rod is fixedly connected to the outer side of the driving pulley, a movable plate is threadedly connected to the outer side of the threaded rod, the front side of the movable plate is fixedly connected to a connecting rod, and a marking mechanism is installed on the front end of the mounting frame.

[0006] Through the above technical solution: the rotation of the active pulley drives the threaded rod to rotate synchronously, and this design greatly improves the operating convenience of the device; through the rotation of the threaded rod, the movement of the movable plate can be accurately controlled; this design enables the detection device to flexibly adjust the detection interval when adapting to the detection work of roads of different widths to meet various detection needs.

[0007] As a further description of the above technical solution:

[0008] The marking mechanism includes a placement plate, the rear side of the placement plate is fixedly connected to the front end of the connecting rod, the top rear side of the placement plate is fixedly connected to a top frame, a small motor is installed at the bottom of the top frame, the output end of the small motor is fixedly connected to a gear, the top of the placement plate is slidably connected to a slide plate, a serrated groove is provided on the top of the slide plate, the gear is meshed with the serrated groove, electric push rods are installed on the left and right ends of the front side of the serrated groove, and a carving knife is fixedly connected to the output end of the electric push rod.

[0009] Through the above technical solution: the rotation of the gear is meshed with the sawtooth groove to drive the slide plate to move; the movement of the slide plate also causes the electric push rod to move, so that the electric push rod drives the engraving knife to descend; this new road marking method does not require the use of traditional lime marking, thereby avoiding the risk of marking failure when working in windy weather.

[0010] As a further description of the above technical solution:

[0011] A slide bar is fixedly connected to the bottom of the slide plate, a slide rail is provided in the middle of the top end of the placement plate, and the slide bar is slidably connected to the slide rail.

[0012] Through the above technical solution: the movement of the slide plate drives the slide bar to slide in the slide rail; this design limits the moving direction of the slide plate.

[0013] As a further description of the above technical solution:

[0014] A detection device is installed on the front side of the bottom of the mounting frame.

[0015] Through the above technical solution: turn on the detection equipment to detect the flatness of the road surface.

[0016] As a further description of the above technical solution:

[0017] Slide grooves are provided on the left and right sides of the inner bottom wall of the mounting frame, and a sliding block is fixedly connected to the bottom of the movable plate, and the sliding block is slidably connected to the slide groove.

[0018] Through the above technical solution: when the movable plate moves, the slider slides in the slide groove, and the moving track of the movable plate is planned.

[0019] As a further description of the above technical solution:

[0020] A protective plate is installed on the front side of the top wall of the mounting frame, and universal wheels are installed at the four corners of the bottom of the mounting frame.

[0021] Through the above technical solution: the debris is pre-blocked by the protective plate, and the equipment is moved by the universal wheel.

[0022] As a further description of the above technical solution:

[0023] A push frame is installed on the rear side of the mounting frame, and anti-slip grooves are arranged on the outer side of the push frame.

[0024] Through the above technical solution: the push frame moving device increases the friction between the push frame and the palm through the anti-slip pattern, thus preventing the push frame from slipping out of the hand.

[0025] As a further description of the above technical solution:

[0026] The plurality of carving knives are symmetrically designed.

[0027] Through the above technical solution: the symmetrically designed engraving knife increases the stability during marking.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the utility model, the rotation of the driving pulley causes the threaded rod to rotate synchronously, and the rotation of the threaded rod drives the movable plate to move, and the movement of the movable plate drives the detection mechanism installed on the front side to move synchronously, thereby increasing its detection interval, being adaptable to the detection work of roads of different widths and meeting the needs of use.

[0030] 2. In the utility model, the rotation of the gear is meshed with the sawtooth groove to drive the slide to move, and then the electric push rod drives the carving knife to descend, so as to carve and mark the uneven road surface. The traditional lime marking method is not used for marking, thus avoiding the risk of marking failure caused by working in windy weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a three-dimensional diagram of a device for detecting the flatness of a cast-in-place pavement layer proposed by the utility model;

[0032] Figure 2 This is an exploded view of the local structure of a device for detecting the flatness of a cast-in-place pavement layer proposed by the utility model;

[0033] Figure 3 This is a disassembled diagram of the marking mechanism of a device for detecting the flatness of a cast-in-place pavement layer proposed by the utility model.

[0034] Legend:

[0035] 1. Mounting frame; 2. Marking mechanism; 201. Placement plate; 202. Slide plate; 203. Top frame; 204. Small motor; 205. Gear; 206. Sawtooth groove; 207. Electric push rod; 208. Engraving knife; 3. Slide groove; 4. Push frame; 5. Anti-skid pattern; 6. Protective plate; 7. Testing equipment; 8. Connecting rod; 9. Fan blade; 10. Fixed frame; 11. Driven pulley; 12. Double-headed motor; 13. Connecting belt; 14. Driving pulley; 15. Threaded rod; 16. Movable plate; 17. Slider; 18. Slide bar; 19. Slide rail; 20. Universal wheel. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Reference Figure 1 , Figure 2 and Figure 3The utility model provides an embodiment: a road surface cast-in-place layer flatness detection device, including a mounting frame 1 and a connecting belt 13, the inner side of the mounting frame 1 is fixedly connected with a double-headed motor 12, the output ends of the double-headed motor 12 are fixedly connected with a driving pulley 14, the top front side of the mounting frame 1 is fixedly connected with a fixing frame 10, the left and right ends of the fixing frame 10 are rotatably connected with a driven pulley 11, the driving pulley 14 is connected to the driven pulley 11 through the connecting belt 13, and the outer side of the driven pulley 11 is fixedly connected with a driving pulley 11. The fan blade 9 is provided, the outer side of the driving pulley 14 is fixedly connected with a threaded rod 15, the outer side of the threaded rod 15 is threadedly connected with a movable plate 16, the front side of the movable plate 16 is fixedly connected with a connecting rod 8, and the front end of the mounting frame 1 is provided with a marking mechanism 2; the left and right sides of the inner bottom wall of the mounting frame 1 are provided with a slide groove 3, the bottom of the movable plate 16 is fixedly connected with a slider 17, and the slider 17 is slidably connected with the slide groove 3; the front side of the top wall of the mounting frame 1 is provided with a protective plate 6, and the four corners of the bottom of the mounting frame 1 are provided with universal wheels 20;

[0038] Specifically, the double-headed motor 12 plays a vital role; it drives the active pulley 14 to rotate, making the adjustment process of the entire detection device more accurate and efficient; the rotation of the active pulley 14 drives the threaded rod 15 to rotate synchronously, and this design greatly improves the convenience of operation of the device; through the rotation of the threaded rod 15, the movement of the movable plate 16 can be accurately controlled to ensure the accuracy of the detection process; during the movement of the movable plate 16, the slider 17 slides in the slide groove 3; this design enables the detection device to flexibly adjust the detection interval when adapting to the detection work of roads of different widths to meet various detection needs; at the same time, the rotation of the active pulley 14 is also linked to the driven pulley 11 to rotate synchronously through the connecting belt 13; this design enhances the stability and reliability of the detection device; the rotation of the driven pulley 11 drives the fan blades 9 to rotate, providing the equipment with a powerful cleaning ability; when encountering debris such as dead branches and fallen leaves scraped on the equipment, the protective plate 6 plays a role of pre-blocking; the blowing of the fan blades 9 can clean up the debris and effectively prevent the normal operation of the equipment from being affected.

[0039] Reference Figure 1 and Figure 3The marking mechanism 2 includes a placing plate 201, the rear side of the placing plate 201 is fixedly connected to the front end of the connecting rod 8, the top rear side of the placing plate 201 is fixedly connected with a top frame 203, a small motor 204 is installed at the bottom of the top frame 203, and a gear 205 is fixedly connected to the output end of the small motor 204, and a slide plate 202 is slidably connected to the top of the placing plate 201, a sawtooth groove 206 is provided at the top of the slide plate 202, and the gear 205 is meshed with the sawtooth groove 206. Electric push rods 207 are installed at the left and right ends of the front side of the sawtooth groove 206, and a carving knife 208 is fixedly connected to the output end of the electric push rod 207; a slide bar 18 is fixedly connected to the bottom of the slide plate 202, a slide rail 19 is provided in the middle of the top of the placing plate 201, and the slide bar 18 is slidably connected to the slide rail 19; a detection device 7 is installed at the front side of the bottom of the mounting frame 1;

[0040] Specifically, the detection device 7 is turned on to detect the flatness of the road surface; when an uneven road surface is detected, the small motor 204 is started to drive the gear 205 to rotate; the rotation of the gear 205 is meshed with the sawtooth groove 206 for transmission, thereby driving the slide plate 202 to move; the movement of the slide plate 202 drives the slide bar 18 to slide in the slide rail 19; this design limits the movement direction of the slide plate 202 to ensure the accuracy of the marking; through the movement of the slide plate 202, the electric push rod 207 is moved in conjunction, so that the electric push rod 207 drives the engraving knife 208 to descend; this new road marking method does not require the use of traditional lime marking, thereby avoiding the risk of marking failure when working in windy weather; at the same time, the engraved position can be filled during repair, which is beneficial to improving the service life and driving quality of the road.

[0041] Reference Figure 1 and Figure 3 A push frame 4 is installed on the rear side of the mounting frame 1, and an anti-slip pattern 5 is provided on the outer side of the push frame 4; a plurality of carving knives 208 are symmetrically designed;

[0042] Specifically, the device is moved by the push frame 4, and the anti-slip pattern 5 increases the friction between the push frame 4 and the palm to prevent the push frame 4 from slipping out of the hand. The symmetrically designed engraving knife 208 increases the stability during marking.

[0043] Working principle: when adjusting the detection width of the road surface cast-in-place layer flatness detection device, turn on the double-headed motor 12 to drive the active pulley 14 to rotate, and the rotation of the active pulley 14 causes the threaded rod 15 to rotate synchronously, and the rotation of the threaded rod 15 drives the movable plate 16 to move, and when the movable plate 16 moves, the slider 17 slides in the slide groove 3, and the movement trajectory of the movable plate 16 is planned. The movement of the movable plate 16 drives the detection mechanism installed on the front side to move synchronously, thereby increasing its detection interval, which can adapt to the detection work of roads of different widths. At the same time, the rotation of the active pulley 14 is linked to the driven pulley 11 to rotate synchronously through the connecting belt 13, and the rotation of the driven pulley 11 drives the fan blades 9 to rotate. When dead branches and fallen leaves are scraped onto the equipment, the protective plate 6 is used to pre-block the debris, and the fan blades 9 are used to blow the debris to avoid the equipment. The normal operation of the equipment is not affected, which can meet the needs of use, and when it is necessary to mark the uneven road surface, the detection device 7 is turned on to detect the flatness of the road surface. When the uneven road surface is detected, the small motor 204 is turned on to drive the gear 205 to rotate, and the rotation of the gear 205 is meshed with the sawtooth groove 206 for transmission, thereby driving the slide plate 202 to move. The movement of the slide plate 202 causes the slide bar 18 to slide in the slide rail 19, which limits the movement direction of the slide plate 202. The movement of the slide plate 202 causes the electric push rod 207 to move, so that the electric push rod 207 drives the carving knife 208 to descend, and the uneven road surface is carved and marked. The traditional lime marking method is not used for marking, which avoids the risk of marking failure due to operations in windy weather. The carving position can be filled during repair, which brings convenience to use.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting the flatness of a cast-in-place road surface, comprising a mounting frame (1) and a connecting belt (13), characterized in that: A double-headed motor (12) is fixedly connected to the inner side of the mounting frame (1), and the output ends of the double-headed motor (12) are fixedly connected to a driving pulley (14). A fixing frame (10) is fixedly connected to the top front side of the mounting frame (1), and the left and right ends of the fixing frame (10) are rotatably connected to driven pulleys (11). The driving pulley (14) is transmission-connected to the driven pulley (11) via the connecting belt (13). A fan blade (9) is installed on the outer side of the driven pulley (11). A threaded rod (15) is fixedly connected to the outer side of the driving pulley (14), and a movable plate (16) is threadedly connected to the outer side of the threaded rod (15). The front side of the movable plate (16) is fixedly connected to a connecting rod (8). A marking mechanism (2) is installed on the front end of the mounting frame (1).

2. A device for detecting the flatness of a cast-in-place road surface according to claim 1, characterized in that: The marking mechanism (2) comprises a placement plate (201), the rear side of the placement plate (201) being fixedly connected to the front end of the connecting rod (8), the top rear side of the placement plate (201) being fixedly connected to a top frame (203), the bottom of the top frame (203) being equipped with a small motor (204), the output end of the small motor (204) being fixedly connected to a gear (205), the top of the placement plate (201) being slidably connected to a slide plate (202), the top of the slide plate (202) being provided with a sawtooth groove (206), the gear (205) being meshingly connected to the sawtooth groove (206), the front left and right ends of the sawtooth groove (206) being equipped with electric push rods (207), the output end of the electric push rod (207) being fixedly connected to a carving knife (208).

3. A device for detecting the flatness of a cast-in-place road surface according to claim 2, characterized in that: A slide bar (18) is fixedly connected to the bottom of the slide plate (202), a slide rail (19) is provided at the middle of the top of the placement plate (201), and the slide bar (18) is slidably connected to the slide rail (19).

4. A device for detecting the flatness of a cast-in-place road surface according to claim 1, characterized in that: A detection device (7) is installed on the front side of the bottom of the mounting frame (1).

5. The device for detecting the flatness of a cast-in-place road surface according to claim 1, characterized in that: Slide grooves (3) are provided on the left and right sides of the inner bottom wall of the mounting frame (1), and a sliding block (17) is fixedly connected to the bottom of the movable plate (16), and the sliding block (17) is slidably connected to the slide groove (3).

6. A device for detecting the flatness of a cast-in-place road surface according to claim 1, characterized in that: A protective plate (6) is installed on the front side of the top wall of the mounting frame (1), and universal wheels (20) are installed at the four corners of the bottom of the mounting frame (1).

7. A device for detecting the flatness of a cast-in-place road surface according to claim 1, characterized in that: A push frame (4) is installed on the rear side of the mounting frame (1), and an anti-slip pattern (5) is provided on the outer side of the push frame (4).

8. A device for detecting the flatness of a cast-in-place road surface according to claim 2, characterized in that: The plurality of carving knives (208) are symmetrically designed.

Citation Information

Patent Citations

  • Device for detecting flatness of cement concrete cast-in-place layer of bridge floor

    CN218211305U