Concrete crack detection device

By designing a concrete crack detection device that carries a retractable detection rod on a mobile vehicle, the problems of low efficiency and safety hazards of manual detection have been solved, enabling efficient and safe detection and automatic marking of cracks in large-scale slab concrete structural columns.

CN223692280UActive Publication Date: 2025-12-19CHINA RAILWAY FIRST GRP BUILDING & INSTALLATION ENG CO LTD +2
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Patent Information

Application Number
CN202520280553.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2025-12-19
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

In existing technologies, manual inspection of cracks in large-scale slab concrete structural columns is inefficient and poses safety hazards, especially for tall structural columns where comprehensive inspection is difficult.

Method used

A concrete crack detection device was designed, which uses a mobile vehicle to carry a retractable detection rod and detection component. The detection rod is driven to extend and retract along the height of the structural column by a drive component, and the detection component is equipped to perform detection. The location of the crack is automatically marked by a marking pen.

Benefits of technology

It enables comprehensive, safe, and efficient inspection of structural columns, saving time and effort, and can automatically mark the location of cracks for easy subsequent treatment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a concrete crack detection device, and relates to the field of concrete detection, and the concrete crack detection device comprises a mobile vehicle, the mobile vehicle is provided with a support, the support is provided with a detection rod, the detection rod is a multi-stage telescopic rod, and the detection rod can stretch out and draw back in the vertical direction; the end, away from the support, of the detection rod is provided with a detection piece used for detecting concrete cracks, and the moving vehicle is provided with a first driving piece used for driving the detection rod to stretch out and draw back. According to the invention, through cooperation of the moving vehicle and the detection member capable of vertically moving, comprehensive detection of the structural column is completed, time and labor are saved, and no potential safety hazard exists.
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Description

TECHNICAL FIELD

[0001] The application relates to the field of concrete detection, in particular to a concrete crack detection device. BACKGROUND

[0002] With the enhancement of the comprehensive national strength, the demand for super-large area concrete structures is increasing in modern engineering construction, and the mass concrete occupies an increasingly important position, which is not only largely used in building engineering, but also widely used in underground engineering, such as underground parking lot engineering. Such super-large area concrete structures often use large-area cast-in-place concrete foundation plates, and these large-area cast-in-place concrete foundation plates belong to large-scale plate concrete, and the large-scale plate concrete structure is prone to temperature shrinkage cracks, and the cracks directly affect the overall performance and normal use of the structure.

[0003] In order to ensure the stability of the concrete building, it is necessary to detect the concrete cracks regularly, and repair the concrete cracks in time to ensure the stability of the concrete building.

[0004] For the large-area cast-in-place concrete of the underground parking lot engineering, a structure column is often integrally cast, that is, a support column for supporting on the ground. For crack detection of the structure column, manual visual judgment is generally used, and the structure column often has a certain height, and it is difficult for the operator to detect comprehensively only by height, so a climbing tool is needed. On the one hand, the detection efficiency is affected, and on the other hand, safety hazards are easily caused. CONTENT OF THE INVENTION

[0005] In order to facilitate the concrete crack of the structure column, the application provides a concrete crack detection device.

[0006] The application provides a concrete crack detection device, which adopts the following technical scheme:

[0007] A concrete crack detection device, comprising a mobile vehicle, a support is arranged on the mobile vehicle, a detection rod is installed on the support, the detection rod is a multi-stage telescopic rod, the detection rod can be telescoped in the vertical direction, a detection member for detecting the concrete crack is installed at one end of the detection rod away from the support, and a driving member one for driving the detection rod to telescope is arranged on the mobile vehicle.

[0008] By adopting the above technical scheme, when detecting the concrete crack of the structure column, the mobile vehicle is moved to a suitable position, then the detection rod is gradually elongated from bottom to top along the height direction of the structure column by the driving member one, and the detection member is matched to detect the concrete crack of the structure column. The mobile vehicle is matched with the vertically movable detection member to complete the comprehensive detection of the structure column, which saves time and effort and has no safety hazards.

[0009] Optionally, the detection rod comprises a plurality of telescopic segments, the telescopic segments are sequentially connected end to end, the telescopic segments are provided with air channels, the air channels of adjacent telescopic segments are communicated, and the two ends of the detection rod are closed.

[0010] By adopting the above technical scheme, when the detection rod is driven to be telescoped, the air pump is started, the air channel is pumped and inflated, and the detection rod can be driven to be telescoped under the action of air pressure. The driving member one is simple in structure and convenient to operate.

[0011] Optionally, the bracket is slidably connected with a mounting rod in the horizontal direction, the detection rod is mounted on the mounting rod, and the bracket is provided with a driving member two for driving the mounting rod to slide.

[0012] By adopting the above technical scheme, the mounting rod is driven to slide horizontally by the driving member two, so that the position of the detection member can be adjusted. For some inclined structure columns, the detection member can be detected at a suitable position.

[0013] Optionally, the driving member two comprises a pneumatic cylinder.

[0014] By adopting the above technical scheme, the mounting rod is driven to slide by the pneumatic cylinder, which is simple in structure and convenient to operate.

[0015] Optionally, the mounting rod is rotatably connected with a rotating disc, the rotating axis direction of the rotating disc is arranged perpendicular to the length direction of the detection rod, one end of the detection rod away from the detection member is fixed on the rotating disc, and the mounting rod is provided with a positioning assembly for positioning the rotating disc.

[0016] By adopting the above technical scheme, the rotating disc can drive the detection rod to rotate, and the angle of the detection member can be adjusted to detect structure columns at different angles. By rotating the detection rod, the detection rod can be rotated to abut against the moving vehicle, so that the detection rod can be stored when not in use, and the moving vehicle can be moved conveniently.

[0017] Optionally, the positioning assembly comprises a pin and a spring, the rotating disc is provided with a plurality of perforations for inserting the pin along the circumferential direction of the rotating disc, the pin is movably connected to the mounting rod in the horizontal direction, the pin is moved in the horizontal direction to be inserted into or separated from the perforation, and the spring is used to limit the pin from being separated from the perforation.

[0018] By adopting the above technical scheme, the pin is inserted into the perforation at a suitable position when the rotating disc is positioned. The positioning assembly is simple in structure and convenient to operate.

[0019] Optionally, one end of the detection rod away from the mobile vehicle is fixedly connected with a mounting plate, the detection piece is mounted on the mounting plate, a disc is rotationally connected to the mounting plate, a marking pen is fixedly connected to the disc in an eccentric manner, and the mounting rod moves horizontally to make the marking pen close to or away from the concrete wall surface to be detected; and the mounting plate is fixedly connected with a motor for driving the disc to rotate.

[0020] By adopting the above technical scheme, when the detection piece detects a crack, the mounting rod moves horizontally to make the marking pen abut against the structural column wall surface, and then the motor drives the disc to rotate, and further drives the marking pen to rotate, so as to mark at the crack position, facilitating subsequent processing of the crack.

[0021] To sum up, the present application has the following beneficial technical effects:

[0022] 1. The present application completes comprehensive detection of the structural column by cooperation of the mobile vehicle and the vertically movable detection piece, which saves time and labor and has no safety hazard;

[0023] 2. The present application marks at the crack position by the marking pen, which facilitates subsequent processing of the crack. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the concrete crack detection device disclosed by the present application;

[0025] Figure 2 is a sectional view of the detection rod in the concrete crack detection device disclosed by the present application;

[0026] Figure 3 is a schematic diagram of the overall structure of the detection rod in the concrete crack detection device disclosed by the present application.

[0027] BRIEF DESCRIPTION OF DRAWINGS

[0028] 1, mobile vehicle; 2, support; 3, mounting rod; 4, detection rod; 5, air cylinder; 6, turntable; 7, bolt; 8, spring; 9, perforation; 10, fixed plate; 11, telescopic section; 12, sliding groove; 13, sliding block; 14, air channel; 15, air cavity; 16, air pump; 17, hose; 18, mounting plate; 19, disc; 20, marking pen; 21, motor; 22, camera. DETAILED DESCRIPTION

[0029] The following will be described in detail in combination with the accompanying drawings. Figures 1-3 The present application will be further described in detail.

[0030] The present application discloses a concrete crack detection device.

[0031] Reference will be made to Figure 1 andFigure 2 The utility model provides a concrete crack detection device, including mobile car 1, be equipped with support 2 on mobile car 1, support 2 is connected with mounting rod 3 along the length direction of mobile car 1 sliding, and the length direction of mounting rod 3 is along the width direction of mobile car 1 setting, and be installed with detection rod 4 on mounting rod 3, and detection rod 4 can be vertically set, and be equipped with driving element no.

[0032] Driving element no. 2 includes cylinder 5, and the fixed end of cylinder 5 is fixedly connected on support 2, and the telescopic end of cylinder 5 is fixedly connected mounting rod 3, and the length direction of cylinder 5 is along the length direction of mobile car 1 setting.

[0033] In the embodiment, support 2 is provided with two, and cylinder 5 is arranged on the two supports 2, and the stability of mounting rod 3 is guaranteed by driving mounting rod 3 to slide through two cylinders 5.

[0034] In another embodiment, the driving element can also adopt a lead screw driving element to drive mounting rod 3 to move.

[0035] In the embodiment, rotatingly connected with rotating disc 6 is provided on mounting rod 3, and the rotating axis direction of rotating disc 6 is along the length direction of mounting rod 3 setting, and the one end of detection rod 4 close to mounting rod 3 is fixed on rotating disc 6, and mounting rod 3 is provided with the positioning assembly for positioning rotating disc 6, and rotating disc 6 rotates to make detection rod 4 close or away from the concrete wall surface to be detected.

[0036] The positioning assembly includes a latch 7 and a spring 8, and a plurality of perforations 9 for the insertion of the latch 7 are formed in the circumferential direction of the rotating disc 6, a fixed plate 10 is fixedly connected to the mounting rod 3, the latch 7 is movably connected to the fixed plate 10 in the length direction of the mounting rod 3, the latch 7 is moved to be inserted into or separated from the perforation 9, the spring 8 is sleeved on the latch 7, and the two ends of the spring 8 are fixedly connected to the latch 7 and the fixed plate 10, respectively.

[0037] In another embodiment, the positioning assembly can also adopt a jamming screw, that is, the threads of the screw pass through the fixed plate 10, the screw is rotated, the screw is jammed against the rotating disc 6, and the rotation of the rotating disc 6 is limited by the friction force.

[0038] In the embodiment, the detection rod 4 is a multi-stage telescopic rod, and the mobile car 1 is provided with a driving element I for driving the telescopic rod to extend or retract.

[0039] Reference Figure 2 and Figure 3The detection rod 4 comprises a plurality of telescopic sections 11 which are connected in sequence and are prevented from being separated by anti-separation assemblies. A non-through sliding groove 12 is formed on the inner wall of the previous telescopic section 11, and a sliding block 13 is fixed on the outer wall of the next telescopic section 11 and is inserted into the sliding groove 12 and can move along the length direction of the sliding groove 12. The telescopic section 11 with the largest cross-sectional area is fixedly connected to the rotating disc 6. Air passages 14 are formed in the telescopic sections 11, the air passages 14 of adjacent telescopic sections 11 are communicated, and the two ends of the detection rod 4 are closed. An air cavity 15 is formed in the rotating disc 6, and the air cavity 15 is communicated with the air passages 14. The driving member one comprises a gas pump 16 which is fixedly connected to the mobile vehicle 1. The gas pump 16 is communicated with a hose 17 at the gas outlet, and the other end of the hose 17 is communicated with the air cavity 15.

[0040] In another embodiment, the driving member one can also adopt a manual pump.

[0041] In the embodiment, the end of the detection rod 4 away from the rotating disc 6 is fixedly connected with a mounting plate 18, the mounting plate 18 is rotationally connected with a disc 19, the rotating axis direction of the rotating disc 6 is arranged along the length direction of the mobile vehicle 1, the disc 19 is fixedly connected with a marker pen 20 eccentrically, the mounting rod 3 is horizontally moved to make the marker pen 20 close to or away from the concrete wall surface to be detected, and the mounting plate 18 is fixedly connected with a motor 21 for driving the disc 19 to rotate.

[0042] The mounting plate 18 is provided with a detection member. In the embodiment, the detection member adopts a camera 22.

[0043] In the embodiment, a processor can be arranged, the crack is judged through the picture shot by the camera 22, once the crack is found, the signal is transmitted to the processor, and the motor 21 and the cylinder 5 are controlled by the processor, so as to realize automatic marking of the crack.

[0044] The implementation principle of the concrete crack detection device disclosed in the application is as follows: in use, the mobile vehicle 1 is moved to a suitable position, then the detection rod 4 is rotated to be vertically arranged, the detection rod 4 is horizontally moved by the mounting rod 3 to be attached to the wall surface to be detected, then the length of the detection rod 4 is adjusted by the gas pump 16, so as to adjust the position of the camera 22, and then the wall surface to be detected can be detected in the vertical direction. After the vertical surface is detected, the mobile vehicle 1 is moved to the next detection position, the length of the detection rod 4 is continuously adjusted, so as to detect the wall surface to be detected. When the crack is detected, the position of the mounting rod 3 is adjusted, so that the marker pen 20 is attached to the wall surface to be detected, then the disc 19 is rotated by the motor 21, and then the marker pen 20 is rotated, so as to mark the position of the crack.

[0045] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A concrete crack detection device, comprising a mobile vehicle (1), a support (2) is arranged on the mobile vehicle (1), characterized in that: The support (2) is provided with a detection rod (4), the detection rod (4) is a multi-stage telescopic rod, the detection rod (4) can be telescoped in the vertical direction, and one end of the detection rod (4) away from the support (2) is provided with a detection piece for detecting a concrete crack.

2. The concrete crack detection apparatus of claim 1, wherein: The detection rod (4) comprises a plurality of telescopic segments (11), the plurality of telescopic segments (11) are sequentially and telescopically connected, the telescopic segment (11) is provided with an air channel (14) inside, the air channels (14) of adjacent telescopic segments (11) are communicated, and the two ends of the detection rod (4) are closed.

3. The concrete crack detection apparatus of claim 1, wherein: The support (2) is provided with a mounting rod (3) which is slidably connected in the horizontal direction, the detection rod (4) is mounted on the mounting rod (3), and the support (2) is provided with a driving part two for driving the mounting rod (3) to slide; the mounting rod (3) slides horizontally so that the detection piece approaches or moves away from the concrete wall surface to be detected.

4. The concrete crack detection apparatus of claim 3, wherein: The driving part two comprises a gas cylinder (5).

5. The concrete crack detection apparatus of claim 3, wherein: The mounting rod (3) is rotatably connected with a rotating disc (6), the rotating axis direction of the rotating disc (6) is arranged perpendicular to the length direction of the detection rod (4), one end of the detection rod (4) away from the detection piece is fixed on the rotating disc (6), and the mounting rod (3) is provided with a positioning assembly for positioning the rotating disc (6); the rotating disc (6) rotates so that the detection rod (4) approaches or moves away from the concrete wall surface to be detected.

6. The concrete crack detection apparatus of claim 5, wherein: The positioning assembly comprises a bolt (7) and a spring (8), the rotating disc (6) is provided with a plurality of perforations (9) for inserting the bolt (7) along the circumferential direction of the rotating disc (6), the bolt (7) is horizontally movably connected to the mounting rod (3), the bolt (7) moves horizontally to be inserted into or separated from the perforation (9), and the spring (8) is used for limiting the bolt (7) from being separated from the perforation (9).

7. The concrete crack detection apparatus of claim 3, wherein: One end of the detection rod (4) away from the mobile vehicle (1) is fixedly connected with a mounting plate (18), the detection piece is mounted on the mounting plate (18), the mounting plate (18) is rotatably connected with a disc (19), the disc (19) is eccentrically and fixedly connected with a marker pen (20), the mounting rod (3) moves horizontally so that the marker pen (20) approaches or moves away from the concrete wall surface to be detected; and the mounting plate (18) is fixedly connected with a motor (21) for driving the disc (19) to rotate.