Highway bridge pavement construction flatness detector

Abstract

The utility model discloses a road bridge pavement construction flatness detector, and relates to the technical field of pavement construction. The device comprises a measuring scale; the top of the line drawing device is in sliding connection with the inner wall of the measuring scale; the outer wall of the white board is fixedly connected with the inner wall of the measuring scale; the outer wall of the protective shell is fixedly connected with the two ends of the measuring scale; the outer wall of the storage device is rotationally connected with the inner wall of the protective shell; the bottom of the sliding rail is fixedly connected with the inner wall of the measuring ruler, the line drawing device is arranged, so that the ground shape is drawn on a white board, measurement is convenient, meanwhile, under pushing of a compression spring, the line drawing position is not prone to being broken, and therefore obtained data are clearer and more complete; the purpose of facilitating the measurement of the pavement flatness by the measurement personnel is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction, in particular to a road bridge road construction flatness detector. Background Art

[0002] Pavement flatness testing is an important part of construction acceptance. It mainly reflects the flatness of the longitudinal section curve of the pavement. It can accurately provide information on the quality of the pavement after construction is completed and is an objective indicator for quality assessment of pavement construction.

[0003] In the prior art, surveyors usually use a three-meter ruler and a feeler gauge in combination to measure the flatness of a road surface. In this process, the gap between the three-meter ruler and the ground is observed, and the position with the largest gap is selected and then measured with a feeler gauge. This process relies on the observation and experience of the surveyor, which makes the measurement prone to deviation. Utility Model Content

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the utility model to solve the technical problems is: a highway bridge pavement construction flatness detector, comprising: a measuring ruler; a line drawing device, the top of the line drawing device is slidably connected to the inner wall of the measuring ruler; a whiteboard, the outer wall of the whiteboard is fixedly connected to the inner wall of the measuring ruler; a protective shell, the outer wall of the protective shell is fixedly connected to the two ends of the measuring ruler; a storage device, the outer wall of the storage device is rotatably connected to the inner wall of the protective shell; a slide rail, the bottom of the slide rail is fixedly connected to the inner wall of the measuring ruler, and a line drawing device is provided so that the ground shape can be depicted on the whiteboard for convenient measurement.

[0005] Preferably, the drawing device includes a servo motor, an output end of the servo motor is fixedly connected to a screw rod, an outer wall of the screw rod is threadedly connected to an internally threaded moving block, an inner wall of the internally threaded moving block is rotatably connected to a slider, the bottom of the slider is rotatably connected to a roller, a marker is plugged into the top of the slider, an end of the slider away from the screw rod is fixedly connected to a telescopic rod, a compression spring is provided on the outside of the telescopic rod, an end of the telescopic rod away from the slider is fixedly connected to a cross plate, both ends of the cross plate are rotatably connected to limit wheels, and the drawing device is arranged under the push of the compression spring, so that the drawing position between the marker and the whiteboard is not easily disconnected, thereby making the obtained data clearer and more complete.

[0006] Preferably, the outer wall of the servo motor is fixedly connected to the outer wall of the measuring ruler, the inner wall of the measuring ruler is rotatably connected to the end of the screw rod away from the servo motor, the outer wall of the limiting wheel is rollingly connected to the inner wall of the measuring ruler, the end of the marker pen tip is in contact with the side of the whiteboard away from the measuring ruler, the outer wall of the internal thread moving block is slidably connected to the outer wall of the slide rail, and a storage device is provided to enable the measuring ruler that is inconvenient to move to be able to move on the ground.

[0007] Preferably, the storage device includes a connecting shaft, both ends of the connecting shaft are fixedly connected with a driving bevel gear, the middle part of the outer wall of the connecting shaft is fixedly connected with a friction ring, a driven bevel gear is arranged below the friction ring, the bottom of the driven bevel gear is fixedly connected with a threaded rod, the outer wall of the threaded rod is threadedly connected with a connecting block, the bottom of the connecting block is rotatably connected with a rotating wheel, the outer wall of the connecting block is slidingly connected to the inner wall of the bottom of the protective shell, the outer wall of the connecting shaft is rotatably connected to the inner wall of the measuring ruler, the bottom of the driven bevel gear is rotatably connected to the top of the measuring ruler, the outer wall of the threaded rod is rotatably connected to the inner wall of the top of the protective shell, the driving bevel gear and the driven bevel gear are meshed, and the rotating wheel of the storage device is stored in the protective shell during measurement, so that the contact surface of the measuring ruler is flat when it contacts the ground, and the measurement data will not be affected by the storage device.

[0008] The beneficial effects of the utility model are as follows:

[0009] 1. The utility model provides a line drawing device, so that the ground shape can be drawn on the whiteboard, which is convenient for measurement. At the same time, under the push of the compression spring, the line drawing position is not easy to be disconnected, so that the obtained data is clearer and more complete.

[0010] 2. The utility model provides a storage device so that a measuring ruler that is difficult to move can be moved on the ground. At the same time, when measuring, the rotating wheel of the storage device is stored in a protective shell, so that the contact surface between the measuring ruler and the ground is flat, and the measurement data will not be affected by the storage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the front view of the utility model;

[0012] Figure 2 It is a cross-sectional view of the utility model;

[0013] Figure 3 It is a structural schematic diagram of the line drawing device of the utility model;

[0014] Figure 4 It is a structural schematic diagram of the storage device of the utility model.

[0015] In the figure: 1. measuring ruler; 2. drawing device; 3. whiteboard; 4. protective shell; 5. storage device; 6. slide rail; 21. servo motor; 22. lead screw; 23. internal thread moving block; 24. slider; 25. roller; 26. marker; 27. telescopic rod; 28. compression spring; 29. ​​cross plate; 210. limit wheel; 51. connecting shaft; 52. friction ring; 53. driving bevel gear; 54. driven bevel gear; 55. threaded rod; 56. connecting block; 57. rotating wheel. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0017] Example: See Figure 1 - Figure 4 The utility model provides a technical solution: a road bridge pavement construction flatness detector, comprising: a measuring ruler 1; a line drawing device 2, the top of the line drawing device 2 is slidably connected to the inner wall of the measuring ruler 1; a whiteboard 3, the outer wall of the whiteboard 3 is fixedly connected to the inner wall of the measuring ruler 1; a protective shell 4, the outer wall of the protective shell 4 is fixedly connected to the two ends of the measuring ruler 1; a storage device 5, the outer wall of the storage device 5 is rotatably connected to the inner wall of the protective shell 4; a slide rail 6, the bottom of the slide rail 6 is fixedly connected to the inner wall of the measuring ruler 1, the measuring ruler 1 is placed on a clean ground, and the servo motor 21 is started. After the servo motor 21 is started, The screw rod 22 is driven to rotate. Due to the threaded arrangement of the screw rod 22 and the internal thread moving block 23, the internal thread moving block 23 will move along the slide rail 6 driven by the screw rod 22, driving the internal thread moving block 23 to move from the direction close to the servo motor 21 in the measuring ruler 1 to a position away from the servo motor 21. During this process, the slider 57 in the internal thread moving block 23 will drive the roller 25 to fall due to its own weight, causing the roller 25 to roll on the bridge pavement. When the internal thread moving block 23 moves, the marker 26 pre-connected to the slider 24 moves to depict the shape of the ground on the whiteboard 3.

[0018] The line drawing device 2 includes a servo motor 21, the output end of the servo motor 21 is fixedly connected to a screw rod 22, the outer wall of the screw rod 22 is threadedly connected to an internal thread moving block 23, the inner wall of the internal thread moving block 23 is rotatably connected to a slider 24, the bottom of the slider 24 is rotatably connected to a roller 25, the top of the slider 24 is plugged with a marker 26, the end of the slider 24 away from the screw rod 22 is fixedly connected to a telescopic rod 27, the outside of the telescopic rod 27 is provided with a compression spring 28, the end of the telescopic rod 27 away from the slider 24 is fixedly connected to a cross plate 29, the cross plate 29 The two ends are rotatably connected to the limiting wheels 210, and the compression spring 28 inside the internal thread moving block 23 is always in a compressed state. Due to the obstruction of the limiting wheel 210, one end of the compression spring 28, which is always in a compressed state, pushes the cross plate 29, so that the cross plate 29 has a tendency to move away from the whiteboard 3, making the movement of the limiting wheel 210 more stable. At the same time, the other end pushes the internal thread moving block 23, so that the internal thread moving block 23 has a tendency to move toward the whiteboard 3, thereby making the marker 26 on the slider 24 and the whiteboard 3 contact more closely.

[0019] The outer wall of the servo motor 21 is fixedly connected to the outer wall of the measuring ruler 1, the inner wall of the measuring ruler 1 is rotationally connected to the end of the screw rod 22 away from the servo motor 21, the outer wall of the limiting wheel 210 is rollingly connected to the inner wall of the measuring ruler 1, the end of the tip of the marker pen 26 contacts the side of the whiteboard 3 away from the measuring ruler 1, and the outer wall of the internal thread moving block 23 is slidingly connected to the outer wall of the slide rail 6. When the measuring ruler 1 needs to move, the friction ring 52 on the measuring ruler 1 is rotated, and the friction ring 52 drives the connecting shaft 51 to rotate. When the connecting shaft 51 rotates, it will drive the movement of the active bevel gears 53 at both ends. Due to the meshing action between the bevel gears, the active bevel gear 53 drives the driven bevel gear 54 to rotate, and then drives the threaded rod 55 to rotate. Under the rotation of the threaded rods 55 on both sides of the measuring ruler 1, the connecting blocks 56 on both sides move downward at the same time, so that the rotating wheel 57 contacts the ground. The rotating wheel 57 contacting the ground and the storage device 5 cooperate to lift the measuring ruler 1. At this time, the measuring ruler 1 is pushed, and the detector can move on the road surface.

[0020] The storage device 5 includes a connecting shaft 51, both ends of which are fixedly connected to a driving bevel gear 53, a friction ring 52 is fixedly connected to the middle of the outer wall of the connecting shaft 51, a driven bevel gear 54 is arranged below the friction ring 52, a threaded rod 55 is fixedly connected to the bottom of the driven bevel gear 54, a connecting block 56 is threadedly connected to the outer wall of the threaded rod 55, a rotating wheel 57 is rotatably connected to the bottom of the connecting block 56, the outer wall of the connecting block 56 is slidably connected to the inner wall of the bottom of the protective shell 4, the outer wall of the connecting shaft 51 is rotatably connected to the inner wall of the measuring ruler 1, the bottom of the driven bevel gear 54 is rotatably connected to the top of the measuring ruler 1, the outer wall of the threaded rod 55 is rotatably connected to the inner wall of the top of the protective shell 4, the driving bevel gear 53 and the driven bevel gear 54 are meshed, and the storage device 5 stores the rotating wheel 57 in the protective shell 4 during the measurement process, so that the surface of the measuring ruler 1 in contact with the ground is flat, and the storage device 5 will not interfere with the measurement data during the measurement process.

[0021] Working principle:

[0022] When in use, a line drawing device 2 is set to assist surveyors in detecting the flatness of the bridge pavement. The measuring ruler 1 is placed on a clean ground, and the servo motor 21 is started. After the servo motor 21 is started, the screw rod 22 is driven to rotate. Due to the thread arrangement of the screw rod 22 and the internal thread moving block 23, the internal thread moving block 23 is driven by the screw rod 22 to move along the slide rail 6, driving the internal thread moving block 23 to move from the direction close to the servo motor 21 in the measuring ruler 1 to a position away from the servo motor 21. In this process, the slider in the internal thread moving block 23 will be moved due to The roller 25 falls down due to its own weight, so that the roller 25 rolls on the bridge road surface. When the internal thread moving block 23 passes through an uneven position during the movement, the roller 25 moves up and down on the ground following the shape of the ground, and drives the slider 24 to move up and down. When the slider 24 moves up and down, it drives the marker pen 26 pre-plugged above to move. The ink outlet position of the marker pen 26 slides on the whiteboard 3, thereby depicting the shape of the ground on the whiteboard 3. The flatness of the ground can be observed by observing the lines on the whiteboard 3, and the measurement on the whiteboard 3 is more accurate.

[0023] At the same time, the compression spring 28 inside the internal thread moving block 23 is always in a compressed state. Under the positioning of the telescopic rod 27, the compression spring 28 will push the cross plate 29 close to the inner wall of the measuring ruler 1. At the same time, the limiting wheel 210 on the cross plate 29 rolls in the measuring ruler 1. Due to the obstruction of the limiting wheel 210, one end of the compression spring 28, which is always in a compressed state, pushes the cross plate 29, so that the cross plate 29 has a tendency to move away from the whiteboard 3, making the movement of the limiting wheel 210 more stable. At the same time, the other end pushes the internal thread moving block 23, so that the internal thread moving block 23 has a tendency to move toward the whiteboard 3, so that the marker pen 26 on the slider 24 is in closer contact with the whiteboard 3, preventing the marker pen 26 from breaking contact and causing data loss.

[0024] The storage device 5 is provided to assist the measuring ruler 1 in moving. Since the measuring ruler 1 is long and the road surface measurement requires multiple sets of data support, when the measuring ruler 1 needs to move, the friction ring 52 on the measuring ruler 1 is rotated, and the friction ring 52 drives the connecting shaft 51 to rotate. When the connecting shaft 51 rotates, the active bevel gears 53 at both ends will be driven to move. Due to the meshing action between the bevel gears, the active bevel gear 53 drives the driven bevel gear 54 to rotate, and then drives the threaded rod 55 to rotate. The threaded rod 55 is restricted by the inner wall of the bottom of the protective shell 4, so that the threaded rod 55 is relative to the protective shell. 4 will not change its position when it rotates, while the connecting block 56 sliding on the inner wall of the bottom of the protective shell 4 is not restricted by this. Under the rotation of the threaded rods 55 on both sides of the measuring ruler 1, the connecting blocks 56 on both sides move downward at the same time, so that the rotating wheel 57 contacts the ground. The rotating wheel 57 in contact with the ground and the storage device 5 cooperate to lift the measuring ruler 1. At this time, the measuring ruler 1 is pushed, and the detector can be moved on the road surface. When it is necessary to retract the rotating wheel 57, it is only necessary to perform the above process in reverse, so that the measuring ruler 1 can be moved and the measurement data will not be interfered with during the measurement process.

[0025] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A highway bridge pavement construction flatness detector, characterized in that: include: Measuring ruler (1); A line drawing device (2), the top of which is slidably connected to the inner wall of the measuring ruler (1); A whiteboard (3), the outer wall of the whiteboard (3) being fixedly connected to the inner wall of the measuring ruler (1); A protective shell (4), the outer wall of the protective shell (4) being fixedly connected to two ends of the measuring ruler (1); A storage device (5), the outer wall of the storage device (5) being rotatably connected to the inner wall of the protective shell (4); A slide rail (6), the bottom of which is fixedly connected to the inner wall of the measuring ruler (1).

2. A highway bridge pavement construction flatness detector according to claim 1, characterized in that: The line drawing device (2) comprises a servo motor (21), the output end of the servo motor (21) is fixedly connected to a screw rod (22), the outer wall of the screw rod (22) is threadedly connected to an internal thread moving block (23), the inner wall of the internal thread moving block (23) is rotatably connected to a slider (24), the bottom of the slider (24) is rotatably connected to a roller (25), the top of the slider (24) is plugged with a marker (26), the end of the slider (24) away from the screw rod (22) is fixedly connected to a telescopic rod (27), a compression spring (28) is arranged on the outside of the telescopic rod (27), the end of the telescopic rod (27) away from the slider (24) is fixedly connected to a transverse plate (29), and both ends of the transverse plate (29) are rotatably connected to limit wheels (210).

3. A highway bridge pavement construction flatness detector according to claim 2, characterized in that: The outer wall of the servo motor (21) is fixedly connected to the outer wall of the measuring ruler (1), the inner wall of the measuring ruler (1) is rotationally connected to an end of the screw rod (22) away from the servo motor (21), and the outer wall of the limiting wheel (210) is rollingly connected to the inner wall of the measuring ruler (1).

4. A highway bridge pavement construction flatness detector according to claim 2, characterized in that: The end of the tip of the marker pen (26) contacts the side of the whiteboard (3) away from the measuring ruler (1), and the outer wall of the internal thread moving block (23) is slidably connected to the outer wall of the slide rail (6).

5. The highway bridge pavement construction flatness detector according to claim 1, characterized in that: The storage device (5) comprises a connecting shaft (51), both ends of the connecting shaft (51) are fixedly connected to driving bevel gears (53), the middle part of the outer wall of the connecting shaft (51) is fixedly connected to a friction ring (52), a driven bevel gear (54) is arranged below the friction ring (52), the bottom of the driven bevel gear (54) is fixedly connected to a threaded rod (55), the outer wall of the threaded rod (55) is threadedly connected to a connecting block (56), and the bottom of the connecting block (56) is rotatably connected to a rotating wheel (57).

6. A highway bridge pavement construction flatness detector according to claim 5, characterized in that: The outer wall of the connecting block (56) is slidably connected to the inner wall of the bottom of the protective shell (4), the outer wall of the connecting shaft (51) is rotationally connected to the inner wall of the measuring ruler (1), the bottom of the driven bevel gear (54) is rotationally connected to the top of the measuring ruler (1), the outer wall of the threaded rod (55) is rotationally connected to the inner wall of the top of the protective shell (4), and the driving bevel gear (53) and the driven bevel gear (54) are meshed.

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