A device for measuring the smoothness of road surface during bridge construction and its usage method

Abstract

This invention relates to the technical field of bridge construction equipment, and discloses a bridge construction pavement smoothness measuring device and its usage method. The device includes a frame with a handle at one end; a balancing and moving mechanism is located at the bottom of the frame; a lifting mechanism is located on the frame; the measuring mechanism includes multiple elastic detection components and marking components, each corresponding to a specific component and located on the output end of the lifting mechanism. Rollers are located at the bottom of the elastic detection components for contact with the ground. A drive component is located on the elastic detection components. Marking components contain marking powder and an opening / closing component that controls the flow of the marking powder. The drive component and the opening / closing component are in a transmission relationship. This invention enables the automatic formation of marking points at road surface depressions or protrusions, simplifying operation and reducing the user's workload.

Description

Technical Field

[0001] This invention relates to the field of bridge construction equipment technology, and in particular to a bridge construction pavement smoothness measuring device and its usage method. Background Technology

[0002] Bridge pavement smoothness refers to the deviation of the longitudinal unevenness of the road surface. The measurement of pavement smoothness is an important indicator for pavement evaluation and pavement construction acceptance, which is related to driving safety, comfort, the magnitude of impact force on the pavement and service life.

[0003] Existing road surface smoothness measuring devices typically measure road surface smoothness by moving a rod-like structure that is in contact with the ground up and down to indicate displacement. However, this requires the operator to constantly observe the measuring ruler corresponding to the rod-like structure and mark the area when a defect is encountered, which is time-consuming and laborious. Summary of the Invention

[0004] The purpose of this invention is to provide a device and method for measuring the smoothness of road surface during bridge construction, aiming to solve or improve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention provides a bridge construction pavement smoothness measuring device, comprising: The frame has a handle at one end; A balancing and moving mechanism is located at the bottom of the frame; A lifting mechanism is mounted on the frame. The measuring mechanism includes multiple elastic detection components and marking components, each corresponding to and disposed on the output end of the lifting mechanism. Each elastic detection component has a roller at its bottom for contact with the ground. A driving component is mounted on each elastic detection component. Each marking component contains marking powder and an opening / closing component that controls the outflow of the marking powder. The driving component and the opening / closing component are in a transmission relationship. When the roller contacts a depression or protrusion in the ground, it drives the elastic detection component to extend or retract. During this extension / retraction, the driving component drives the opening / closing component to open and close, causing the marking powder within the marking component to fall into the depression or protrusion.

[0006] Optionally, the balancing movement mechanism includes: A pair of connecting frames are rotatably connected to both sides of the frame body via a rotating shaft, and the two ends of the connecting frames are symmetrically mounted with respect to the rotating shaft as the center; Multiple first springs are fixedly connected between the connecting frame and the frame body, symmetrically about the rotation axis.

[0007] Optionally, the lifting mechanism includes: A pair of hydraulic cylinders are fixedly mounted on the frame. A mounting plate is fixedly mounted on the output end of a pair of hydraulic cylinders, and the elastic detection component and the marking component are both fixedly connected to the mounting plate.

[0008] Optionally, the elasticity detection component includes: The support rod is fixedly connected to the mounting plate; The movable rod has a groove, and the support rod slides within the groove. A second spring is fixedly connected between the bottom end of the support rod and the bottom end of the groove, and the roller is fixedly installed at the bottom end of the movable rod.

[0009] Optionally, the driving component includes: The first connecting rod is fixedly connected to the movable rod; A drive frame that slides with the first connecting rod, and a first locking assembly is provided between the drive frame and the first connecting rod; The first toothed plate is fixedly connected to the drive frame, and the first toothed plate is in transmission engagement with the opening and closing assembly through the first gear.

[0010] Optionally, the tagging component includes: The material cylinder is fixedly connected to the mounting plate; A fixed tube is fixedly connected to and communicates with the material cylinder. A second locking component is provided on the fixed tube. The second locking component is detachably connected to the drive frame. The opening and closing component is provided on the fixed tube. A telescopic tube is fixedly connected to and communicates with the fixed tube. The end of the telescopic tube away from the fixed tube is fixedly connected to and communicates with a discharge tube. The discharge tube is fixedly connected to the movable rod through a second connecting rod.

[0011] Optionally, the opening and closing component includes: A sealing plate is rotatably connected inside the fixed tube via a shaft, one end of which extends out of the fixed tube and is fixedly connected to the first gear. A sealing ring is circumferentially fixed to the sealing plate, and the sealing ring is used to abut against the inner wall of the fixed tube.

[0012] Optionally, the first locking component includes: A first slide groove is formed on the side wall of the drive frame. A first slider is slidably fitted in the first slide groove. The first slider is fixedly connected to the first connecting rod. A first threaded hole is formed on the first slider. A first screw is threaded into the first threaded hole, and a resistance block is fixedly connected to the first screw. The resistance block is used to abut against the side wall of the drive frame.

[0013] Optionally, the second locking component includes: A first support block is fixedly connected to the fixed tube, and a rotating rod is rotatably connected to the first support block, and a clamping plate is fixedly connected to the rotating rod; The second support block is fixedly connected to the drive frame. The second support block has a slot, and the card plate is used to insert into the slot.

[0014] The present invention also provides a method for using a bridge construction pavement smoothness measuring device, comprising: The lifting mechanism operates to bring the multiple rollers into contact with the ground; Push the handle to move it along the ground; When the roller contacts the depression or bulge of the ground, it drives the elastic detection component to extend and retract. The extension and retraction of the elastic detection component drives the drive component to open and close the opening and closing component, so that the marking powder in the marking component falls to the ground, thereby forming a marking point in the depression or bulge of the ground.

[0015] This invention discloses the following technical effects: The lifting mechanism drives the measuring mechanism to move, causing the rollers to contact the ground. This allows the frame to move, and the balancing mechanism maintains the frame's balance. When the rollers contact the ground's depressions or protrusions, the elastic detection component, due to its inherent elasticity, extends and retracts with the depressions or protrusions. This extension and retraction of the elastic detection component drives the drive component to move synchronously, which in turn drives the opening and closing component. This causes the marking powder inside the marking component to fall onto the ground's depressions or protrusions during the opening and closing process, automatically forming marking points at the road surface's depressions or protrusions. This reduces the user's workload and facilitates operation and editing. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the balancing and moving mechanism of the present invention; Figure 3 This is a schematic diagram of the lifting mechanism structure of the present invention; Figure 4This is a schematic diagram of the structure of the elastic detection component and the marking component of the present invention; Figure 5 for Figure 4 A magnified view of part A in the image; Figure 6 for Figure 4 A magnified view of part B in the image; Figure 7 This is a cross-sectional view of the elastic detection component of the present invention; Figure 8 This is a schematic diagram of the opening and closing component structure of the present invention; Figure 9 This is a schematic diagram of the structure of the second locking component of the present invention; Figure 10 This is a schematic diagram of the first slider structure of the present invention.

[0017] In the diagram: 1. Frame; 2. Handle; 3. Balancing and moving mechanism; 31. Connecting frame; 32. Rotating shaft; 33. Moving wheel; 34. First spring; 4. Lifting mechanism; 41. Hydraulic cylinder; 42. Mounting plate; 5. Measuring mechanism; 51. Elasticity detection component; 511. Support rod; 512. Movable rod; 513. Groove; 514. Second spring; 52. Marking component; 521. Material cylinder; 522. Fixing tube; 523. Second locking component; 5231. First support block; 5232. Rotating rod; 5233. Card plate; 5234. Second support block; 5235. Card slot; 5236. Transmission sprocket; 5237. Transmission chain; 524. Telescopic tube; 525. Discharge tube; 5 26. Second connecting rod; 53. Roller; 54. Drive assembly; 541. First connecting rod; 542. Drive frame; 543. First locking assembly; 5431. First slide groove; 5432. First slider; 5433. First threaded hole; 5434. First screw; 5435. Resistance block; 5436. Sliding through groove; 5437. Third connecting rod; 5438. First handle; 544. First toothed plate; 545. First gear; 55. Opening and closing assembly; 551. Sealing plate; 552. Sealing ring; 56. Third support block; 57. Threaded sleeve; 58. Second screw; 59. Bearing seat; 60. Second toothed plate; 61. Second gear; 62. Limiting slide groove; 63. Limiting slider. Detailed Implementation

[0018] 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.

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Reference Figures 1-10 This invention provides a device for measuring the smoothness of bridge construction pavement, comprising: The frame 1 has a handle 2 at one end; The balancing and moving mechanism 3 is located at the bottom of the frame 1; The lifting mechanism 4 is mounted on the frame 1; The measuring mechanism 5 includes multiple elastic detection components 51 and marking components 52, which are correspondingly arranged on the output end of the lifting mechanism 4. The bottom of the elastic detection component 51 is provided with a roller 53 for contacting the ground. The elastic detection component 51 is provided with a drive component 54. The marking component 52 is provided with marking powder and an opening and closing component 55 for controlling the flow of marking powder. The drive component 54 and the opening and closing component 55 are driven to cooperate. When the roller 53 contacts the ground in a concave or convex stage, it drives the elastic detection component 51 to perform telescopic movement. When the elastic detection component 51 performs telescopic movement, the drive component 54 drives the opening and closing component 55 to open and close, so that the marking powder in the marking component 52 falls into the concave or convex stage of the ground.

[0021] The lifting mechanism 4 pushes the measuring mechanism 5 to move, so that the roller 53 contacts the ground. This allows the frame 1 to move, and the balancing mechanism 3 keeps the frame 1 in a balanced state. When the roller 53 contacts the depression or bulge of the ground, the elastic detection component 51 has its own elasticity, so it can extend and retract with the depression or bulge. When the elastic detection component 51 extends and retracts, it drives the drive component 54 to move synchronously. The drive component 54 then drives the opening and closing component 55 to open and close, so that the marking powder in the marking component 52 falls to the depression or bulge of the ground when the opening and closing component 55 opens and closes. This allows the road surface depression or bulge to automatically form a marking point, reducing the user's labor.

[0022] In one embodiment of the present invention, the balancing movement mechanism 3 includes: A pair of connecting frames 31 are rotatably connected to both sides of the frame 1 via rotating shafts 32. The two ends of the connecting frames 31 are symmetrically mounted with the rotating shafts 32 as the center. Multiple first springs 34 are fixedly connected between the connecting frame 31 and the frame 1, symmetrically about the rotating shaft 32.

[0023] When the measuring device is moved, when the moving wheel 33 encounters an uneven road surface, the connecting frame 31 can rotate along the rotating shaft 32 according to the road surface condition, which can improve the balance of the frame 1 and improve the measurement accuracy. The first spring 34 is used to support the frame 1 and realize the automatic reset effect of the connecting frame 31.

[0024] In one embodiment of the present invention, the lifting mechanism 4 includes: A pair of hydraulic cylinders 41 are fixedly mounted on the frame 1; Mounting plate 42 is fixedly mounted on the output end of a pair of hydraulic cylinders 41, and elastic detection component 51 and marking component 52 are both fixedly connected to mounting plate 42.

[0025] The mounting plate 42 is moved by a pair of hydraulic cylinders 41, which can drive the elastic detection component 51 and the marking component 52 to move synchronously, so that the elastic detection component 51 and the marking component 52 can move close to the ground when used for measurement, and move away from the ground when stored.

[0026] In one embodiment of the present invention, the elasticity detection component 51 includes: Support rod 511 is fixedly connected to mounting plate 42; The movable rod 512 has a groove 513, and the support rod 511 is slidably fitted in the groove 513. A second spring 514 is fixedly connected between the bottom end of the support rod 511 and the bottom end of the groove 513. The roller 53 is fixedly installed at the bottom end of the movable rod 512.

[0027] In use, the hydraulic cylinder 41 pushes the support rod 511 downward. When the roller 53 contacts the ground, it is still under force, which can compress the second spring 514. Thus, when the roller 53 encounters a concave road surface, the movable rod 512 can have sufficient range of motion. At the same time, when encountering a convex road surface, the movable rod 512 moves upward along the support rod 511, and the second spring 514 continues to be compressed.

[0028] In one embodiment of the present invention, the driving component 54 includes: The first connecting rod 541 is fixedly connected to the movable rod 512; A drive frame 542 is slidably engaged with a first connecting rod 541, and a first locking component 543 is provided between the drive frame 542 and the first connecting rod 541. The first toothed plate 544 is fixedly connected to the drive frame 542, and the first toothed plate 544 is in transmission cooperation with the opening and closing assembly 55 through the first gear 545.

[0029] During measurement, the first locking assembly 543 keeps the first connecting rod 541 and the drive frame 542 locked. As the movable rod 512 moves when it encounters a raised or recessed road surface, the first connecting rod 541 drives the drive frame 542 to move synchronously, thereby causing the first toothed plate 544 to drive the first gear 545 to rotate, which in turn causes the opening and closing assembly 55 to open and close.

[0030] In one embodiment of the present invention, the marking component 52 includes: The material cylinder 521 is fixedly connected to the mounting plate 42; A fixed tube 522 is fixedly connected to and communicates with the material cylinder 521. A second locking component 523 is provided on the fixed tube 522. The second locking component 523 is detachably connected to the drive frame 542. An opening and closing component 55 is provided on the fixed tube 522. The telescopic tube 524 is fixedly connected to and communicates with the fixed tube 522. The end of the telescopic tube 524 away from the fixed tube 522 is fixedly connected to and communicates with the discharge tube 525. The discharge tube 525 is fixedly connected to the movable rod 512 through the second connecting rod 526.

[0031] When the hydraulic cylinder 41 pushes the mounting plate 42 to move, the movable rod 512 will move after the roller 53 contacts the ground. In order to avoid the waste of marking powder caused by the opening and closing of the opening and closing component 55 in this state, the second locking component 523 locks the drive frame 542, so that the drive frame 542 is connected and fixed to the fixed tube 522. The first locking component 543 releases the connection between the first connecting rod 541 and the drive frame 542. Thus, when the movable rod 512 moves, the first connecting rod 541 slides along the drive frame 542. After the hydraulic cylinder 41 is adjusted, the second locking component 523 releases the lock of the drive frame 542, and the first locking component 543 relocks the first connecting rod 541 and the drive frame 542.

[0032] In one embodiment of the present invention, the opening / closing component 55 includes: The sealing plate 551 is rotatably connected to the fixed tube 522 via a shaft, with one end of the shaft extending out of the fixed tube 522 and fixedly connected to the first gear 545. The sealing ring 552 is circumferentially fixed to the sealing plate 551 and is used to abut against the inner wall of the fixed tube 522.

[0033] When the first gear 545 is pushed by the first toothed plate 544, it drives the shaft to rotate synchronously, causing the sealing plate 551 to flip, thereby realizing the outflow of the marking powder. Conversely, when the roller 53 is dislodged from the ground and protrudes or sinks, the first toothed plate 544 resets, thereby causing the sealing plate 551 to reset, and the sealing plate 551 and the sealing ring 552 seal the fixed tube 522.

[0034] In one embodiment of the present invention, the first locking component 543 includes: The first slide groove 5431 is opened on the side wall of the drive frame 542. The first slide groove 5431 is slidably fitted with the first slider 5432. The first slider 5432 is fixedly connected to the first connecting rod 541. The first slider 5432 is provided with a first threaded hole 5433. The first screw 5434 is threadedly engaged with the first threaded hole 5433. A resistance block 5435 is fixedly connected to the first screw 5434. The resistance block 5435 is used to abut against the side wall of the drive frame 542.

[0035] The first screw 5434 has a partial thread. By rotating the first screw 5434, the threaded section on the first screw 5434 disengages from the first threaded hole 5433, and the resistance block 5435 separates from the drive frame 542. This achieves the separation of the first connecting rod 541 from the drive frame 542. Thus, when the movable rod 512 moves, the first connecting rod 541 drives the first slider 5432 to slide along the first slide groove 5431. Conversely, the threaded section on the first screw 5434 is screwed into the first threaded hole 5433, causing the resistance block 5435 to abut against the side wall of the drive frame 542, locking the first connecting rod 541 and the drive frame 542 through friction.

[0036] Furthermore, the drive frame 542 has sliding grooves 5436 on both sides, with the first screw 5434 located in the sliding groove 5436. Multiple first sliders 5432 are fixedly connected by a third connecting rod 5437. A first handle 5438 is fixedly connected to the first screw 5434 at any end. This allows the multiple resistance blocks 5435 to move synchronously by rotating the first handle 5438, which is achieved through the cooperation of multiple first screws 5434 and multiple third connecting rods 5437. This enables the locking and synchronous adjustment of multiple drive frames 542 and multiple first connecting rods 541.

[0037] In one embodiment of the present invention, the second locking component 523 includes: The first support block 5231 is fixedly connected to the fixed tube 522. A rotating rod 5232 is rotatably connected to the first support block 5231, and a clamping plate 5233 is fixedly connected to the rotating rod 5232. The second support block 5234 is fixedly connected to the drive frame 542. The second support block 5234 has a slot 5235, and the card plate 5233 is used to insert into the slot 5235.

[0038] By rotating the rotating rod 5232, the card plate 5233 is inserted into the card slot 5235, and the first support block 5231 is fixed on the second support block 5234, which limits the movement of the drive frame 542 in the height direction, so that the drive frame 542 is fixed on the fixed tube 522.

[0039] Furthermore, a transmission sprocket 5236 is provided on the rotating rod 5232. Multiple transmission sprockets 5236 are connected by a transmission chain 5237. Thus, by rotating any one rotating rod 5232, multiple rotating rods 5232 will rotate synchronously through the transmission chain 5237 and multiple transmission sprockets 5236, thereby achieving synchronous adjustment of multiple drive frames 542 and fixed tube 522. Furthermore, a third support block 56 is fixedly connected to any of the first support blocks 5231, and a threaded sleeve 57 is fixedly installed on the third support block 56. A second screw 58 is threaded into the internal thread of the threaded sleeve 57, and a bearing seat 59 is rotatably fitted to one end of the second screw 58. The bearing seat 59 is fixedly installed on the second gear plate 60, and a second gear 61 meshes with the second gear plate 60. The second gear 61 is fixedly connected to the rotating rod 5232 on the first support block 5231, and a limit groove is formed on the third support block 56. 62. A limiting slider 63 is slidably fitted inside the limiting groove 62. The limiting slider 63 is fixedly connected to the second toothed plate 60. A second handle is fixedly connected to the second screw 58. By rotating the second handle, the second screw 58 rotates and moves along the threaded sleeve 57, thereby driving the second toothed plate 60 and the limiting slider 63 to move along the limiting groove. The second toothed plate 60 pushes the second gear 61 to rotate, causing the rotating rod 5232 to rotate. The threaded engagement between the second screw 58 and the threaded sleeve 57 can achieve locking at any stage.

[0040] A method for using a bridge construction pavement smoothness measuring device includes: First, the second locking component 523 locks the drive frame 542, so that the drive frame 542 is connected and fixed to the fixed tube 522. Then, the first locking component 543 releases the connection between the first connecting rod 541 and the drive frame 542. Then, the lifting mechanism 4 operates to make the multiple rollers 53 contact the ground. After adjustment, the first locking component 543 locks the first connecting rod 541 and the drive frame 542, the second locking component 523 releases the connection between the drive frame 542 and the fixed tube 522, and then pushes the handle 2 to move along the ground. When the roller 53 contacts the depression or protrusion of the ground, it drives the elastic detection component 51 to extend and retract. The extension and retraction of the elastic detection component 51 drives the drive component 54 to drive the opening and closing component 55 to open and close, so that the marking powder in the marking component 52 falls to the ground, so that the depression or protrusion of the ground forms a marking point.

[0041] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0042] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A device for measuring the smoothness of road surface during bridge construction, characterized in that, include: The frame (1) has a handle (2) at one end; A balancing and moving mechanism (3) is located at the bottom of the frame (1); A lifting mechanism (4) is mounted on the frame (1); The measuring mechanism (5) includes multiple elastic detection components (51) and marking components (52) that are correspondingly arranged on the output end of the lifting mechanism (4). The elastic detection component (51) is provided with a roller (53) at its bottom. The roller (53) is used to contact the ground. The elastic detection component (51) is provided with a driving component (54). The marking component (52) is provided with marking powder and an opening and closing component (55) that controls the flow of the marking powder. The driving component (54) is in transmission cooperation with the opening and closing component (55). The roller (53) is used to drive the elastic detection component (51) to perform telescopic movement when it contacts the ground in a concave or convex stage. When the elastic detection component (51) performs telescopic movement, the driving component (54) drives the opening and closing component (55) to open and close, so that the marking powder in the marking component (52) falls into the ground in a concave or convex stage.

2. The bridge construction pavement smoothness measuring device according to claim 1, characterized in that, The balancing movement mechanism (3) includes: A pair of connecting frames (31) are rotatably connected to both sides of the frame (1) via a rotating shaft (32). The two ends of the connecting frames (31) are symmetrically mounted with respect to the rotating shaft (32). Multiple first springs (34) are fixedly connected between the connecting frame (31) and the frame body (1) with the rotation axis (32) as the center.

3. The bridge construction pavement smoothness measuring device according to claim 1, characterized in that, The lifting mechanism (4) includes: A pair of hydraulic cylinders (41) are fixedly mounted on the frame (1); Mounting plate (42) is fixedly mounted on the output end of a pair of hydraulic cylinders (41), and the elastic detection component (51) and the marking component (52) are both fixedly connected to the mounting plate (42).

4. The bridge construction pavement smoothness measuring device according to claim 3, characterized in that, The elastic detection component (51) includes: Support rod (511), which is fixedly connected to the mounting plate (42); The movable rod (512) has a groove (513) and the support rod (511) slides in the groove (513). A second spring (514) is fixedly connected between the bottom end of the support rod (511) and the bottom end of the groove (513). The roller (53) is fixedly installed at the bottom end of the movable rod (512).

5. The bridge construction pavement smoothness measuring device according to claim 4, characterized in that, The driving component (54) includes: The first connecting rod (541) is fixedly connected to the movable rod (512); A drive frame (542) is slidably engaged with the first connecting rod (541), and a first locking assembly (543) is provided between the drive frame (542) and the first connecting rod (541). The first toothed plate (544) is fixedly connected to the drive frame (542), and the first toothed plate (544) is in transmission cooperation with the opening and closing assembly (55) through the first gear (545).

6. The bridge construction pavement smoothness measuring device according to claim 5, characterized in that, The marking component (52) includes: The material cylinder (521) is fixedly connected to the mounting plate (42); A fixed tube (522) is fixedly connected to and communicates with the material cylinder (521). A second locking component (523) is provided on the fixed tube (522). The second locking component (523) is detachably connected to the drive frame (542). The opening and closing component (55) is provided on the fixed tube (522). The telescopic tube (524) is fixedly connected to and communicates with the fixed tube (522). The end of the telescopic tube (524) away from the fixed tube (522) is fixedly connected to and communicates with the discharge tube (525). The discharge tube (525) is fixedly connected to the movable rod (512) through the second connecting rod (526).

7. The bridge construction pavement smoothness measuring device according to claim 6, characterized in that, The opening and closing component (55) includes: The sealing plate (551) is rotatably connected inside the fixed tube (522) via a shaft, one end of which extends out of the fixed tube (522) and is fixedly connected to the first gear (545); A sealing ring (552) is circumferentially fixed to the sealing plate (551), and the sealing ring (552) is used to abut against the inner wall of the fixed tube (522).

8. The bridge construction pavement smoothness measuring device according to claim 5, characterized in that, The first locking component (543) includes: The first slide groove (5431) is opened on the side wall of the drive frame (542). The first slider (5432) is slidably fitted in the first slide groove (5431). The first slider (5432) is fixedly connected to the first connecting rod (541). The first threaded hole (5433) is opened on the first slider (5432). The first screw (5434) is threaded into the first threaded hole (5433), and a resistance block (5435) is fixedly connected to the first screw (5434). The resistance block (5435) is used to abut against the side wall of the drive frame (542).

9. A bridge construction pavement smoothness measuring device according to claim 6, characterized in that, The second locking component (523) includes: A first support block (5231) is fixedly connected to the fixed tube (522), and a rotating rod (5232) is rotatably connected to the first support block (5231), and a clamping plate (5233) is fixedly connected to the rotating rod (5232). The second support block (5234) is fixedly connected to the drive frame (542). The second support block (5234) has a slot (5235) and the card plate (5233) is used to insert into the slot (5235).

10. A method of using a bridge construction pavement smoothness measuring device, based on the bridge construction pavement smoothness measuring device according to any one of claims 1-9, characterized in that, include: The lifting mechanism (4) operates to bring the plurality of rollers (53) into contact with the ground; Push the handle (2) to move it along the ground; When the roller (53) contacts the ground depression or convex stage, it drives the elastic detection component (51) to perform telescopic movement. The telescopic movement of the elastic detection component (51) drives the drive component (54) to drive the opening and closing component (55) to open and close, so that the marking powder in the marking component (52) falls to the ground, so that the ground depression or convex stage forms a marking point.

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