A concrete defect measurement and crack width detection device

Abstract

This utility model discloses a concrete defect measurement crack width detection device, belonging to the field of concrete defect detection technology. It includes two bases, with a handle fixedly installed on the upper surface of each base and a suction cup fixedly installed on the lower surface. A rotating shaft is rotatably mounted on the upper surface of one of the bases, and a rotating block is fixedly mounted on the outer surface of the rotating shaft. An installation frame is fixedly installed between the rotating block and the other base. By using the bases and rotating block in conjunction with the installation frame, and utilizing a fixed measuring gauge and a movable measuring plate within the installation frame in conjunction with a threaded rod, the rotation of the threaded rod adjusts the position of the movable measuring plate, thereby achieving crack width measurement. Furthermore, the rotating shaft, in conjunction with the rotating block, allows for width measurement at different locations. The suction cup provides adhesion and fixation, ensuring overall device stability, improving measurement accuracy, and preventing deviations during measurement that could affect the accuracy of the results.

Description

Technical Field

[0001] This utility model belongs to the field of concrete defect detection technology, specifically relating to a concrete defect measurement crack width detection device. Background Technology

[0002] Concrete is an artificial stone composite material made by mixing cementitious materials such as cement, aggregates such as sand, stone, water and admixtures in a certain proportion, and then mixing, molding and curing it. It is widely used in civil engineering, construction engineering and other fields.

[0003] After the concrete is laid, defect measurement is required, which involves measuring various cracks on the concrete surface. Surface crack width detection is one such method. Existing methods for width detection involve placing a graduated plate directly at the crack location. This method has low accuracy, is inconvenient to operate, and the plate is prone to shifting or misalignment, thus limiting its application. Therefore, we propose a concrete defect measurement crack width detection device. Utility Model Content

[0004] The purpose of this utility model is to provide a concrete defect measurement crack width detection device to solve the problems mentioned in the background art, where the existing detection method for width detection is to directly place a graduated plate at the crack location, which has low detection accuracy, is inconvenient to operate, and the plate is prone to displacement and misalignment, thus having certain limitations in use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a concrete defect measurement crack width detection device, comprising two bases, a handle fixedly installed on the upper surface of the bases, a suction cup fixedly installed on the lower surface of the bases, a rotating shaft rotatably mounted on the upper surface of one of the bases, a rotating block fixedly mounted on the outer surface of the rotating shaft rotatably mounted, an installation frame fixedly mounted between the rotating block and the other base, two rotating shafts rotatably mounted within the installation frame, a knob fixedly mounted on the outer surface of one of the rotating shafts rotatably mounted, a threaded rod fixedly mounted between the two rotating shafts rotatably mounted, a threaded plate threadedly mounted on the outer surface of the threaded rod, a movable measuring plate fixedly mounted on the lower surface of the threaded plate, a fixed measuring plate fixedly mounted on the inner wall of the installation frame, the fixed measuring plate and the movable measuring plate working together, a sliding sleeve fixedly mounted on the side of the threaded plate, and a scale slidingly mounted within the sliding sleeve.

[0006] The above scheme utilizes a base and rotating block in conjunction with a mounting frame. A fixed measuring gauge and a movable measuring plate within the mounting frame work together with a threaded rod. Rotation of the threaded rod adjusts the position of the movable measuring plate, thus enabling crack width measurement. A rotating shaft, in conjunction with the rotating block, allows for width measurement at different locations. A suction cup provides adhesion and fixation, ensuring overall device stability, improving measurement accuracy, and preventing deviations from affecting the accuracy of the results. A sliding sleeve, used in conjunction with a scale, allows for crack depth measurement, providing multiple crack measurement methods and enhancing functionality.

[0007] In a preferred embodiment, a slider is fixedly installed on the side of the rotating block, and an arc-shaped track is fixedly installed on the base surface on the same side as the slider. The slider is slidably installed on the inner wall of the arc-shaped track. An arc-shaped hole is opened on the surface of the arc-shaped track. A fixing screw is fixedly installed on the surface of the slider. The fixing screw passes through the arc-shaped hole and is threaded with a fixing nut. The fixing nut is fitted and arranged on the surface of the arc-shaped track.

[0008] Using the above solution, the slider unlocks when the fixing nut is unscrewed from the fixing screw. At this time, the rotating block can be rotated through the rotating shaft. When the rotating block rotates, it will drive the sliding block to move synchronously. After the rotation is complete, the fixing nut is screwed on to achieve position compression locking. The locking structure is simple and easy to operate.

[0009] In a preferred embodiment, an indicator needle is fixedly installed on the side of both the fixed measuring plate and the side of the movable measuring plate, and a scale plate that cooperates with the indicator needle is fixedly installed on the side of the mounting frame.

[0010] Using the above scheme, the distance between the fixed measuring plate and the movable measuring plate can be displayed by using an indicator needle in conjunction with a scale plate. The distance between the fixed measuring plate and the movable measuring plate is the crack width.

[0011] In a preferred embodiment, a plurality of guide bars are fixedly installed on the inner wall of the mounting frame, and a guide groove is provided on the side of the threaded plate for sliding cooperation with the guide bars.

[0012] By adopting the above scheme and using the guide bar in conjunction with the guide groove, the movement of the threaded plate can be supported and guided during the rotation of the threaded rod, thereby improving the smoothness of the movement and preventing shaking.

[0013] In a preferred embodiment, a positioning rod is slidably mounted on the sliding sleeve, an operating plate is fixedly mounted on one end of the positioning rod, and a positioning groove is provided on the surface of the scale for the positioning rod to be inserted.

[0014] By using the above solution, the ruler can be locked in place by using a positioning rod in conjunction with a positioning groove to prevent accidental drop.

[0015] In a preferred embodiment, a spring is sleeved on the outside of the positioning rod, and the two ends of the spring are fixedly connected to the opposite surfaces of the operating plate and the sliding sleeve, respectively.

[0016] Using the above solution, the spring force can drive the positioning rod to be quickly inserted into the positioning slot, improving the convenience of locking the scale.

[0017] Compared with the prior art, the beneficial effects of this utility model are: This concrete defect crack width detection device uses a base and rotating block in conjunction with an installation frame. The fixed measuring gauge and movable measuring plate inside the installation frame work together with a threaded rod. The rotation of the threaded rod adjusts the position of the movable measuring plate, thereby measuring the crack width. The rotating shaft works in conjunction with the rotating block to measure the width at different locations. A suction cup is used for adhesion and fixation to ensure the stability of the entire device, improve measurement accuracy, and avoid deviations during measurement that could affect the accuracy of the results. This concrete defect measurement crack width detection device, through the use of a sliding sleeve in conjunction with a scale, can measure crack depth, providing multiple crack measurement methods and enhancing its functional versatility. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the present invention from another angle; Figure 3 This is a schematic diagram of the arc-shaped track and slider of this utility model; Figure 4 This is a schematic diagram of the mounting frame of this utility model; Figure 5 This is a structural schematic diagram of the sliding sleeve and scale of this utility model in cross-section; Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Base; 2. Handle; 3. Suction cup; 4. Rotating shaft one; 5. Rotating block; 6. Mounting frame; 7. Fixed measuring plate; 8. Movable measuring plate; 9. Rotating shaft two; 10. Knob; 11. Threaded rod; 12. Threaded plate; 13. Sliding sleeve; 14. Scale; 15. Arc track; 16. Slider; 17. Fixing screw; 18. Fixing nut; 19. Indicator needle; 20. Scale plate; 21. Guide bar; 22. Positioning rod; 23. Operation panel; 24. Spring. Detailed Implementation

[0020] Please see Figure 1-6 This utility model provides a concrete defect measurement crack width detection device, including two bases 1. A handle 2 is fixedly installed on the upper surface of the base 1, and a suction cup 3 is fixedly installed on the lower surface of the base 1. A rotating shaft 4 is rotatably installed on the upper surface of one of the bases 1. A rotating block 5 is fixedly installed on the outer surface of the rotating shaft 4. An installation frame 6 is fixedly installed between the rotating block 5 and the other base 1. Two rotating shafts 9 are rotatably installed inside the installation frame 6. A knob 10 is fixedly installed on the outer surface of one of the rotating shafts 9. A threaded rod 11 is fixedly installed between the two rotating shafts 9. A threaded plate 12 is threadedly installed on the outer surface of the threaded rod 11. A movable measuring plate 8 is fixedly installed on the lower surface of the threaded plate 12. A fixed measuring plate 7 is fixedly installed on the inner wall of the installation frame 6. The fixed measuring plate 7 and the movable measuring plate 8 are used in conjunction. A sliding sleeve 13 is fixedly installed on the side of the threaded plate 12. A scale 14 is slidably arranged inside the sliding sleeve 13.

[0021] The base 1 and rotating block 5 are used in conjunction with the mounting frame 6. The fixed measuring gauge and movable measuring plate 8 within the mounting frame 6 are used in conjunction with the threaded rod 11. The rotation of the threaded rod 11 adjusts the position of the movable measuring plate 8, thereby enabling crack width measurement. The rotating shaft 4 is used in conjunction with the rotating block 5 to measure the width at different locations. The suction cup 3 is used for adsorption and fixation to ensure the stability of the overall device, improve measurement accuracy, and avoid deviations during measurement that could affect the accuracy of the results. The sliding sleeve 13 is used in conjunction with the scale 14 to measure crack depth, providing multiple crack measurement methods and enhancing the device's versatility.

[0022] A slider 16 is fixedly installed on the side of the rotating block 5. An arc-shaped track 15 is fixedly installed on the surface of the base 1 on the same side as the slider 16. The slider 16 is slidably installed on the inner wall of the arc-shaped track 15. An arc-shaped hole is opened on the surface of the arc-shaped track 15. A fixing screw 17 is fixedly installed on the surface of the slider 16. The fixing screw 17 passes through the arc-shaped hole and is threaded with a fixing nut 18. The fixing nut 18 is fitted and positioned on the surface of the arc-shaped track 15. When the fixing nut 18 is unscrewed, the slider 16 is unlocked. At this time, the rotating block 5 can be rotated through the rotating shaft 4. When the rotating block 5 rotates, it will drive the slider block to move synchronously. After the rotation is complete, the fixing nut 18 is screwed on to achieve position compression locking. The locking structure is simple and easy to operate.

[0023] Indicator needles 19 are fixedly installed on the side of the fixed measuring plate 7 and the side of the movable measuring plate 8. A scale plate 20 that works with the indicator needles 19 is fixedly installed on the side of the mounting frame 6. By using the indicator needles 19 and the scale plate 20, the distance between the fixed measuring plate 7 and the movable measuring plate 8 can be displayed. The distance between the fixed measuring plate 7 and the movable measuring plate is the crack width.

[0024] Several guide bars 21 are fixedly installed on the inner wall of the mounting frame 6. The side of the threaded plate 12 is provided with a guide groove that slides and cooperates with the guide bars 21. By using the guide bars 21 in conjunction with the guide groove, the movement of the threaded plate 12 can be supported and guided during the rotation of the threaded rod 11, thereby improving the smoothness of the movement and avoiding shaking.

[0025] A positioning rod 22 is slidably mounted on the sliding sleeve 13. An operating plate 23 is fixedly mounted on one end of the positioning rod 22. A positioning groove is opened on the surface of the scale 14 for the positioning rod 22 to be inserted. By using the positioning rod 22 in conjunction with the positioning groove, the scale 14 can be locked to prevent accidental drop.

[0026] A spring is sleeved on the outside of the positioning rod 22. The two ends of the spring 24 are fixedly connected to the opposite surfaces of the operating plate 23 and the sliding sleeve 13, respectively. The elastic force of the spring 24 can drive the positioning rod 22 to be quickly inserted into the positioning groove, thereby improving the convenience of locking the scale 14.

[0027] In use, place the entire device at the location of the concrete crack and adjust its position so that the fixed measuring plate 7 is attached to one side of the crack's inner wall. Then, use the suction cup 3 to adhere and fix the base 1 to the concrete. Next, turn the knob 10 to drive the rotating shaft 9 to rotate the threaded rod 11, which in turn drives the threaded plate 12 to move the movable measuring plate 8. The distance between the scale plate 20 indicated by the indicator needle 19 on the fixed measuring plate 7 and the movable measuring plate 8 is the crack width. When measuring cracks at different locations, lift the side of the base 1 without the curved track 15 so that the suction cup 3 on the base 1 at this location detaches from the concrete. Then, unscrew the fixing screw. When the mother 18 is turned on, the slider 16 is unlocked, which means the rotating block 5 is unlocked. The rotating block 5 is rotated in conjunction with the rotating shaft 4. After rotating to the appropriate position, the fixing nut 18 is tightened to lock the position. Then, the suction cup 3 is used to attach and fix the concrete. Then, the crack width is measured again. At the same time, the operating plate 23 can be pulled to drive the positioning rod 22 to move. When the positioning rod 22 is disengaged from the positioning groove, the scale 14 is unlocked. At this time, the scale 14 will move downward into the crack and touch the bottom of the crack, thereby realizing the crack depth measurement. In addition, the threaded rod 11 is rotated to drive the threaded plate 12 to move horizontally, realizing the depth measurement at different positions.

Claims

1. A device for measuring crack width in concrete defects, characterized in that: It includes two bases (1), with a handle (2) fixedly installed on the upper surface of the base (1) and a suction cup (3) fixedly installed on the lower surface of the base (1). A rotating shaft (4) is rotatably installed on the upper surface of one of the bases (1), and a rotating block (5) is fixedly installed on the outer surface of the rotating shaft (4). A mounting frame (6) is fixedly installed between the rotating block (5) and the other base (1). Two rotating shafts (9) are rotatably installed inside the mounting frame (6), and a rotating part is fixedly installed on the outer surface of one of the rotating shafts (9). A threaded rod (11) is fixedly installed between the two rotating shafts (9). A threaded plate (12) is threadedly installed on the outer surface of the threaded rod (11). A movable measuring plate (8) is fixedly installed on the lower surface of the threaded plate (12). A fixed measuring plate (7) is fixedly installed on the inner wall of the mounting frame (6). The fixed measuring plate (7) and the movable measuring plate (8) are used in conjunction. A sliding sleeve (13) is fixedly installed on the side of the threaded plate (12). A scale (14) is slidably arranged inside the sliding sleeve (13).

2. The concrete defect measurement and crack width detection device according to claim 1, characterized in that: A slider (16) is fixedly installed on the side of the rotating block (5). An arc-shaped track (15) is fixedly installed on the surface of the base (1) on the same side as the slider (16). The slider (16) is slidably installed on the inner wall of the arc-shaped track (15). An arc-shaped hole is opened on the surface of the arc-shaped track (15). A fixing screw (17) is fixedly installed on the surface of the slider (16). The fixing screw (17) passes through the arc-shaped hole and is threaded with a fixing nut (18). The fixing nut (18) is fitted and arranged on the surface of the arc-shaped track (15).

3. The concrete defect measurement crack width detection device according to claim 1, characterized in that: Indicator needles (19) are fixedly installed on the side of the fixed measuring plate (7) and the side of the movable measuring plate (8), and a scale plate (20) that works in conjunction with the indicator needles (19) is fixedly installed on the side of the mounting frame (6).

4. The concrete defect measurement and crack width detection device according to claim 1, characterized in that: The inner wall of the mounting frame (6) is fixedly installed with several guide bars (21), and the side of the threaded plate (12) is provided with a guide groove for sliding cooperation with the guide bars (21).

5. The concrete defect measurement crack width detection device according to claim 1, characterized in that: A positioning rod (22) is slidably mounted on the sliding sleeve (13). An operating plate (23) is fixedly mounted on one end of the positioning rod (22). A positioning groove for the positioning rod (22) to be inserted is provided on the surface of the scale (14).

6. The concrete defect measurement crack width detection device according to claim 5, characterized in that: The positioning rod (22) is fitted with a spring (24), and the two ends of the spring (24) are fixedly connected to the opposite surfaces of the operating plate (23) and the sliding sleeve (13), respectively.

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