UHPC bridge deck slab crack width detection structure

Abstract

The utility model discloses a UHPC bridge deck slab crack width detection structure, which belongs to the technical field of bridge deck detection, and is characterized by comprising a mobile vehicle body, the rear side of the mobile vehicle body is fixedly connected with an armrest frame, and an optical non-contact crack detector is arranged in the mobile vehicle body. A mounting frame is fixedly connected to the front side of the movable vehicle body, an adjusting assembly is arranged in the mounting frame and comprises a supporting plate, a sweeping assembly is arranged below the supporting plate, dirt in cracks and on the surfaces of the cracks can be effectively removed by arranging the sweeping assembly and a brush disc, and when the brush disc sweeps off impurities, the dirt in the cracks can be effectively removed. The dust collection heads can timely suck away dust and impurities, the dust collection range is enlarged through the design of the multiple dust collection heads, it is ensured that the dust and impurities generated in the cleaning process can be comprehensively collected, the situation that the dust and impurities are accumulated around cracks or fall into the cracks again is avoided, and therefore the detection precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge deck detection, in particular to a UHPC bridge deck crack width detection structure. Background Art

[0002] UHPC bridges are bridges built with ultra-high performance concrete. Although UHPC has high strength and toughness, it can still produce cracks. When subjected to factors such as vehicle loads, temperature changes, shrinkage and creep, the cracks may gradually expand. If the crack width exceeds a certain limit, the effective bearing area of ​​the structure will be reduced, causing the stress distribution inside the bridge to change. By detecting the crack width, cracks that are close to or may lead to through-holes can be discovered in a timely manner, and appropriate measures can be taken to repair or reinforce them.

[0003] Existing crack detection methods typically use specialized optical detection instruments. However, when inspecting cracks in UHPC bridge decks, dust and impurities on the crack surface interfere with the reflection and refraction of light. Dust and impurities may be mistaken for part of the crack, causing the measured crack width to be larger than the actual value. Dust and impurities also change the propagation path of light, blurring the captured crack image and affecting the image analysis software's ability to accurately identify the crack edge, thereby reducing the accuracy of crack width measurement.

[0004] Therefore, a crack width detection structure for UHPC bridge deck is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a UHPC bridge deck crack width detection structure, which can solve the problem that when detecting cracks in UHPC bridge decks, dust and impurities on the crack surface will interfere with the reflection and refraction of light. The dust and impurities may be mistaken for part of the crack, resulting in the measured crack width being larger than the actual value. At the same time, the dust and impurities will also change the propagation path of light, making the captured crack image blurred, affecting the image analysis software's accurate identification of the crack edge, thereby reducing the accuracy of crack width measurement.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a UHPC bridge deck crack width detection structure, comprising a mobile body, a handrail fixedly connected to the rear side of the mobile body, an optical non-contact crack detector disposed inside the mobile body, a mounting frame fixedly connected to the front side of the mobile body, an adjustment assembly disposed inside the mounting frame, the adjustment assembly comprising a support plate, and a cleaning assembly disposed below the support plate;

[0007] The cleaning assembly includes an annular channel, a connecting rod, a dust collector head, a brush plate, a driving motor and a transmission rod. The annular channel is located below the support plate, the connecting rod is fixedly connected between the annular channel and the opposite side of the support plate, the dust collector head is fixedly connected to the bottom of the annular channel and multiple dust collector heads are evenly distributed, the brush plate is movably connected to the inside of the annular channel, the driving motor is fixedly connected to the top of the support plate, the output end of the driving motor passes through the support plate and is fixedly connected to the transmission rod, and the bottom end of the transmission rod is fixedly connected to the top of the brush plate.

[0008] Preferably, mounting grooves are provided on both sides of the inner wall of the support plate, a guide rod is fixedly connected to the interior of the left mounting groove, and a screw rod is rotatably connected to the interior of the right mounting groove.

[0009] Preferably, a guide block is slidably connected to the surface of the guide rod, and a screw block is threadedly connected to the surface of the screw rod, and the guide block and the screw block are respectively fixedly connected to two sides of the support plate.

[0010] Preferably, a handle is rotatably connected to the right side of the top of the mounting bracket, and the bottom of the handle is fixedly connected to the top of the screw.

[0011] Preferably, a collection box is fixedly connected to the top of the mobile body, a vacuum cleaner is fixedly connected to the rear side of the collection box, a hose is fixedly connected to the top of the collection box, and the other end of the hose passes through the mounting frame and the support plate and is fixedly connected to the annular channel.

[0012] Preferably, a pull-out box is slidably connected to the interior of the collection box, and the surface of the pull-out box is configured to be mesh-shaped. A mounting plate is fixedly connected to the exterior of the pull-out box, and the mounting plate is bolted to the collection box.

[0013] Preferably, a circular hole is opened inside the mobile body, and the optical non-contact crack detector is used in conjunction with the circular hole. An electric push rod is fixedly connected to the top of the inner wall of the mobile body, and the telescopic end of the electric push rod is fixedly connected to the top of the optical non-contact crack detector.

[0014] Preferably, a limiting groove is provided on the inner wall of the annular channel, and a limiting ring is fixedly connected to the top of the brush disc, and the limiting ring is rotatably connected to the inside of the limiting groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This application sets a cleaning component. The brush disc can effectively remove dirt inside and on the surface of the crack. While the brush disc sweeps away the impurities, the dust suction head can promptly suck away the dust and impurities. The design of multiple dust suction heads increases the dust suction range, ensuring that the dust and impurities generated during the cleaning process can be fully collected, avoiding the accumulation of dust and impurities around the crack or falling back into the crack, thereby improving the detection accuracy.

[0017] 2. This application sets an adjustment component, which can accurately adjust the height of the support plate, so that the cleaning component can be accurately aligned with the crack. Whether it is a straight crack or a crack with a certain degree of curvature, it can ensure that the cleaning action accurately acts on the inside and edge of the crack, thereby achieving a more thorough cleaning effect. At the same time, the distance between the cleaning component and the bridge deck can be adjusted according to the actual situation of the bridge deck, thereby improving the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the overall structural diagram of the UHPC bridge deck crack width detection structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 Rear view;

[0020] Figure 3 This is a schematic structural diagram of the adjustment component of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the cleaning component of the utility model;

[0022] Figure 5 This is a schematic diagram of the connection between the collection box and the pull-out box of the utility model;

[0023] Figure 6 This is a schematic diagram of the connection between the annular channel and the brush disk of the utility model.

[0024] In the figure, 1. Moving vehicle body; 2. Handrail; 3. Optical non-contact crack detector; 4. Mounting frame; 5. Adjustment assembly; 501. Support plate; 502. Guide rod; 503. Screw; 504. Guide block; 505. Screw; 6. Cleaning assembly; 601. Annular channel; 602. Connecting rod; 603. Cleaning head; 604. Brush plate; 605. Driving motor; 606. Transmission rod; 7. Mounting slot; 8. Handle; 9. Collection box; 10. Vacuum cleaner; 11. Hose; 12. Pull-out box; 13. Mounting plate; 14. Round hole; 15. Electric push rod; 16. Limiting slot; 17. Limiting ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-6 , this utility model provides a technical solution:

[0027] A UHPC bridge deck crack width detection structure includes a mobile body 1, a handrail 2 fixedly connected to the rear side of the mobile body 1, an optical non-contact crack detector 3 disposed inside the mobile body 1, a mounting frame 4 fixedly connected to the front side of the mobile body 1, an adjustment component 5 disposed inside the mounting frame 4, the adjustment component 5 including a support plate 501, and a cleaning component 6 disposed below the support plate 501;

[0028] The cleaning component 6 includes an annular channel 601, a connecting rod 602, a dust collector head 603, a brush plate 604, a drive motor 605 and a transmission rod 606. The annular channel 601 is located below the support plate 501. The connecting rod 602 is fixedly connected between the annular channel 601 and the opposite side of the support plate 501. The dust collector head 603 is fixedly connected to the bottom of the annular channel 601 and multiple dust collector heads 603 are evenly distributed. The brush plate 604 is movably connected to the inside of the annular channel 601. The drive motor 605 is fixedly connected to the top of the support plate 501. The output end of the drive motor 605 passes through the support plate 501 and is fixedly connected to the transmission rod 606. The bottom end of the transmission rod 606 is fixedly connected to the top of the brush plate.

[0029] In this embodiment: by setting up a cleaning component 6, the brush disc 604 is driven to rotate by the driving motor 605. This rotary cleaning method can effectively remove dust and impurities inside and on the surface of the crack. When the brush disc 604 brushes off the dust and impurities inside and on the surface of the crack, the dust collector head 603 can absorb these dust and impurities into the interior of the dust collector head 603. Its evenly distributed design ensures that a certain area can be covered. No matter how the dust and impurities are distributed around the crack, they can be effectively collected, thereby improving the cleaning effect of the dust and impurities.

[0030] Specifically, such as Figure 1 、 Figure 3 As shown, mounting grooves 7 are provided on both sides of the inner wall of the support plate 501 , a guide rod 502 is fixedly connected to the interior of the left mounting groove 7 , and a screw rod 503 is rotatably connected to the interior of the right mounting groove 7 .

[0031] Specifically, such as Figure 3As shown, the surface of the guide rod 502 is slidably connected to a guide block 504 , and the surface of the screw rod 503 is threadedly connected to a screw block 505 . The guide block 504 and the screw block 505 are fixedly connected to both sides of the support plate 501 respectively.

[0032] Specifically, such as Figure 3 As shown, the right side of the top of the mounting bracket 4 is rotatably connected to a handle 8 , and the bottom of the handle 8 is fixedly connected to the top of the screw rod 503 .

[0033] In this embodiment: through the above settings, the handle 8 can drive the screw rod 503 to rotate, and when the screw rod 503 rotates, it will drive the screw block 505 to move along the axial direction of the screw rod 503. When the screw block 505 moves, it will drive the guide block 504 and the support plate 501 to move together, so that the height of the cleaning component 6 can be flexibly adjusted, thereby improving the flexibility of use, and the sliding connection between the guide block 504 and the mounting groove 7 can limit the moving trajectory of the support plate 501, thereby avoiding the phenomenon of offset when the support plate 501 moves.

[0034] Specifically, such as Figure 2 、 Figure 4 As shown, a collecting box 9 is fixedly connected to the top of the mobile body 1, a vacuum cleaner 10 is fixedly connected to the rear side of the collecting box 9, a hose 11 is fixedly connected to the top of the collecting box 9, and the other end of the hose 11 passes through the mounting frame 4 and the support plate 501 and is fixedly connected to the annular channel 601.

[0035] Specifically, such as Figure 5 As shown, the interior of the collection box 9 is slidably connected to a pull-out box 12 , and the surface of the pull-out box 12 is arranged in a mesh shape. The outside of the pull-out box 12 is fixedly connected to a mounting plate 13 , which is bolted to the collection box 9 .

[0036] In this embodiment: through the above settings, the strong suction force generated by the vacuum cleaner 10 can suck the dust from the cracks through the vacuum head 603, and then transmit it to the collection box 9 through the hose 11, and the pull-out box 12 can filter the dust and impurities sucked into the collection box 9, preventing them from entering the vacuum cleaner 10 and other subsequent components, avoiding damage or blockage to these components. On the other hand, the pull-out box 12 serves as a temporary storage space for dust and debris. During the vacuuming process, it can continuously collect dust and impurities transported from the hose 11, which is convenient for subsequent centralized cleaning. The mounting plate 13 facilitates the subsequent installation and disassembly of the pull-out box 12, and facilitates the maintenance of the pull-out box 12.

[0037] Specifically, such as Figure 2 As shown, a circular hole 14 is opened inside the mobile body 1, and the optical non-contact crack detector 3 is used in conjunction with the circular hole 14. An electric push rod 15 is fixedly connected to the top of the inner wall of the mobile body 1, and the telescopic end of the electric push rod 15 is fixedly connected to the top of the optical non-contact crack detector 3.

[0038] Specifically, such as Figure 6 As shown, a limiting groove 16 is provided on the inner wall of the annular channel 601 , and a limiting ring 17 is fixedly connected to the top of the brush plate 604 , and the limiting ring 17 is rotatably connected to the inside of the limiting groove 16 .

[0039] In this embodiment: through the above settings, the circular hole 14 provides a specific installation position for the optical non-contact crack detector 3, so that the detector can be accurately and firmly placed inside the mobile body 1, and the electric push rod 15 can flexibly adjust the height of the detector relative to the UHPC bridge deck. When facing different detection requirements, the detector can be adjusted to the optimal detection height position, thereby improving the flexibility of use. The limit groove 16 can limit the limit ring 17, limiting the brush plate 604 to rotate only according to a specific circular trajectory in the annular channel 601, avoiding the brush plate 604 from offsetting and shaking during operation. Instability ensures that the brush plate 604 can always maintain the correct position and posture when rotating to clean cracks, thereby improving the cleaning effect.

[0040] Working principle: When detecting the width of the crack, first start the drive motor 605 and the vacuum cleaner 10, then move the mobile body 1 to the crack area through the handrail 2, and then rotate the screw 503 through the handle 8. After the screw 503 rotates, it will drive the screw block 505 and the support plate 501 to move downward until the brush plate 604 contacts the crack. The drive motor 605 will drive the brush plate 604 to rotate at a high speed, which can brush away the dust and impurities inside and on the surface of the crack, and the strong suction generated by the vacuum cleaner 10 will remove the dust through the vacuum cleaner. The head 603 will promptly absorb the dust and impurities brushed off by the brush plate 604. The dust and impurities will be transported to the pull-out box 12 inside the collection box 9 through the annular channel 601 and the hose 11. After cleaning is completed, the electric push rod 15 drives the optical non-contact crack detector 3 to move to the optimal detection position to ensure that the optical image and other data of the crack can be clearly obtained. The optical non-contact crack detector 3 collects the optical information of the crack, analyzes and calculates the width data of the crack through the internal processing system, and can complete the detection of the crack width.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A UHPC bridge deck crack width detection structure, comprising a mobile body (1), characterized in that: The rear side of the mobile body (1) is fixedly connected to a handrail frame (2), an optical non-contact crack detector (3) is provided inside the mobile body (1), a mounting frame (4) is fixedly connected to the front side of the mobile body (1), an adjustment component (5) is provided inside the mounting frame (4), the adjustment component (5) includes a support plate (501), and a cleaning component (6) is provided below the support plate (501); The cleaning assembly (6) comprises an annular channel (601), a connecting rod (602), a dust collecting head (603), a brush plate (604), a driving motor (605) and a transmission rod (606); the annular channel (601) is located below the support plate (501); the connecting rod (602) is fixedly connected between the annular channel (601) and the opposite side of the support plate (501); the dust collecting head (603) is fixedly connected to the bottom of the annular channel (601) and a plurality of dust collecting heads (603) are evenly distributed; the brush plate (604) is movably connected to the inside of the annular channel (601); the driving motor (605) is fixedly connected to the top of the support plate (501); the output end of the driving motor (605) passes through the support plate (501) and is fixedly connected to the transmission rod (606); the bottom end of the transmission rod (606) is fixedly connected to the top of the brush plate (604).

2. The UHPC bridge deck crack width detection structure according to claim 1, characterized in that: Both sides of the inner wall of the support plate (501) are provided with mounting grooves (7), the interior of the left mounting groove (7) is fixedly connected to a guide rod (502), and the interior of the right mounting groove (7) is rotatably connected to a screw rod (503).

3. The UHPC bridge deck crack width detection structure according to claim 2, characterized in that: The surface of the guide rod (502) is slidably connected to a guide block (504), and the surface of the screw rod (503) is threadedly connected to a screw block (505). The guide block (504) and the screw block (505) are respectively fixedly connected to both sides of the support plate (501).

4. The UHPC bridge deck crack width detection structure according to claim 2, characterized in that: The right side of the top of the mounting frame (4) is rotatably connected to a handle (8), and the bottom of the handle (8) is fixedly connected to the top of the screw rod (503).

5. The UHPC bridge deck crack width detection structure according to claim 1, characterized in that: The top of the mobile vehicle body (1) is fixedly connected to a collection box (9), the rear side of the collection box (9) is fixedly connected to a dust collector (10), the top of the collection box (9) is fixedly connected to a hose (11), the other end of the hose (11) passes through the mounting frame (4) and the support plate (501) and is fixedly connected to the annular channel (601).

6. The UHPC bridge deck crack width detection structure according to claim 5, characterized in that: The interior of the collection box (9) is slidably connected to a pull-out box (12), and the surface of the pull-out box (12) is arranged in a mesh shape. The outside of the pull-out box (12) is fixedly connected to a mounting plate (13), and the mounting plate (13) is bolted to the collection box (9).

7. The UHPC bridge deck crack width detection structure according to claim 1, characterized in that: A circular hole (14) is provided inside the mobile body (1), and the optical non-contact crack detector (3) is used in conjunction with the circular hole (14). An electric push rod (15) is fixedly connected to the top of the inner wall of the mobile body (1), and the telescopic end of the electric push rod (15) is fixedly connected to the top of the optical non-contact crack detector (3).

8. The UHPC bridge deck crack width detection structure according to claim 1, characterized in that: A limiting groove (16) is provided on the inner wall of the annular channel (601), and a limiting ring (17) is fixedly connected to the top of the brush disc (604), and the limiting ring (17) is rotatably connected to the inside of the limiting groove (16).

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