Concrete crack width measuring device

Abstract

The utility model relates to the technical field of width measuring instrument equipment, in particular to a concrete crack width measuring device, which is characterized in that a driven gear is arranged on a rotating shaft, the driven gear is meshed with a driving gear, the driving gear is provided with a motor I in a matched manner, one end of the motor I is connected with one end of a shaft bracket, and the other end of the shaft bracket is provided with a motor II; in the concrete crack detection process, equipment is placed on the ground, a motor I is started to rotate on a shaft bracket, a driving gear connected with the motor I is driven to rotate along with the motor I in the rotation process, the driving gear is meshed with a driven gear, and the driven gear is fixed on a rotating shaft, so that the rotating shaft and a camera are driven to rotate along the shaft bracket; and a rotary knob I is rotated for fastening, so that the horizontal angle between the camera and the ground is adjusted, and the stability of equipment detection is improved.

Description

Technical Field

[0001] This utility model relates to the field of width measuring equipment technology, and more specifically, it relates to a device for measuring the width of concrete cracks. Background Technology

[0002] Concrete is the most widely used material in modern construction, but it has an inherent flaw—low tensile strength and a tendency to crack. The appearance of cracks is unavoidable, but not all cracks are dangerous. The key is to distinguish between "benign" and "malignant" cracks. Excessively wide cracks, especially transverse cracks in the tension zone, may indicate insufficient structural load-bearing capacity, suggesting that the reinforcing steel may have yielded, posing a safety hazard. The location, direction, and width of the crack can help determine whether it is a structural crack. Width is a crucial criterion. The most common existing device for measuring concrete width is the width measuring instrument. However, current technology has some problems and defects that can affect the measurement of concrete width.

[0003] First, during the measurement process, the width measuring instrument's camera is mostly operated manually by hand. If there is shaking during the detection process, the camera may not be able to keep level with the ground, resulting in low equipment stability and thus low equipment efficiency.

[0004] Secondly, during the measurement process, longer gaps require manual adjustment of the position for detection, resulting in lower adjustment performance and thus poor applicability.

[0005] Furthermore, during the equipment inspection process, the displacement inspection of multiple segments requires manual hand-held operation, which is time-consuming and labor-intensive, making the equipment inspection process cumbersome. As a result, the equipment's displacement performance is low, leading to poor applicability. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the problems existing in the prior art, this utility model provides a concrete crack width measuring device to solve the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a concrete crack width measuring device, comprising a width measuring instrument, a connecting line provided at the output end of the width measuring instrument, a camera provided on the connecting line, a detection device provided on the camera, the detection device comprising a connecting sleeve, a connecting hole provided on the connecting sleeve, the connecting line passing through the connecting hole and fixedly fitted to the connecting sleeve, a rotating shaft provided on the connecting sleeve, a shaft bracket rotatably connected to the rotating shaft, a knob provided on the shaft bracket, an adjustment device provided at the bottom end of the shaft bracket, the adjustment device comprising a guide rail, the top end of the guide rail connected to the bottom end of the shaft bracket, a positioning frame slidably connected to the guide rail, a limit rod provided on the positioning frame, a slider provided on the limit rod, an electric push rod provided on the slider, one end of the electric push rod connected to the positioning frame, and a displacement component provided at the bottom end of the slider.

[0010] This utility model is further configured such that: a driven gear is provided on the rotating shaft, and a drive gear is meshed with the driven gear; a motor is matched with the drive gear, and one end of the motor is connected to one end of the shaft frame. During the detection of concrete cracks, the device is placed on the ground, and the motor is started to rotate on the shaft frame. During rotation, the drive gear connected to it rotates accordingly. The drive gear and the driven gear mesh, and the driven gear is fixed on the rotating shaft, thereby causing the rotating shaft and camera to rotate along the shaft frame. A rotating knob is used for fastening; the knob is a bolt structure, and its end... The part is threadedly engaged with the shaft frame body. By tightening, its end is pressed against the rotating shaft, and fixed by friction. This adjusts the horizontal angle between the camera and the ground, improving the stability of the equipment's detection and thus enhancing its practicality. During this process, the sliding positioning frame slides along the guide rail at the bottom of the shaft frame to adjust its position. After adjusting the camera's position in the longitudinal direction of the concrete gap, the camera moves along the concrete gap for detection. During this process, the electric push rod is activated, causing it to pull the slider to slide on the limit rod, thereby adjusting the position and improving the equipment's adjustability, thus enhancing its practicality.

[0011] The present invention is further configured such that: the positioning frame is provided with a screw hole, and a lead screw is threadedly connected to the screw hole; a second motor is provided with the lead screw; one end of the second motor is connected to one end of the shaft frame; during the adjustment of the positioning frame, the second motor is started and rotated on the shaft frame, which drives the lead screw connected to it to rotate accordingly; the lead screw drives the threaded positioning frame to slide along the guide rail, thereby improving the automation level of the equipment and thus improving the practicality of the equipment.

[0012] This utility model is further configured such that: the displacement component includes a crank rod, the top end of the crank rod is connected to the bottom end of the slider, an adjustment frame is slidably connected to the crank rod, a knob is provided on the adjustment frame, a module plate is provided on the adjustment frame, a positioning shaft is provided on the module plate, a connecting piece is provided on the positioning shaft, a roller is provided on the connecting piece, and a motor is provided on the roller. One end of the motor is connected to one end of the connecting piece. When the equipment needs to detect multiple gaps, the sliding adjustment frame slides along the crank rod connected to the slider to adjust the height. After adjustment, rotate knob two to fix it. Knob two is a bolt structure, and its end is threaded with the body of the adjustment frame. By tightening it, its end is pressed against the crank rod, and the fixing is achieved by friction. After fixing, the rollers support the ground. Start motor three to rotate, which drives the rollers to rotate and move the equipment. After the movement is completed, rotate the connecting plate to drive the positioning shaft connected to it to rotate on the module plate, which drives the rollers to rise and support the adjustment frame on the ground. This improves the displacement performance of the equipment and thus improves the practicality of the equipment.

[0013] The present invention is further configured such that: an electric push rod two is provided on the connecting piece, and a positioning rod is hinged to the output end of the electric push rod two; the other end of the positioning rod is rotatably connected to the adjustment frame; during the adjustment of the connecting piece, the electric push rod two is activated to extend and retract, thereby driving the positioning rod connected to it to pull or push the adjustment frame, thereby adjusting the angle of the connecting piece, improving the automation level of the equipment, and thus improving the practicality of the equipment.

[0014] The present invention is further configured such that a support block is provided at the bottom of the adjustment frame. When the adjustment frame supports the ground, the addition of the support block improves the buffering capacity of the equipment, thereby improving the practicality of the equipment.

[0015] The present invention is further configured such that: a tire is provided on the roller, and when the roller rolls, the tire is fitted onto it to increase the friction with the ground, thereby improving the practicality of the equipment.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Place the device on the ground and start the motor to rotate on the shaft frame. During the rotation, the drive gear connected to it will rotate accordingly. The drive gear and the driven gear mesh, and the driven gear is fixed on the rotating shaft, thereby driving the rotating shaft and the camera to rotate along the shaft frame. Tighten the rotating knob to adjust the horizontal angle between the camera and the ground, thereby improving the stability of the device detection.

[0019] 2. The sliding positioning frame slides along the guide rail at the bottom of the shaft frame to adjust its position. After adjusting the longitudinal direction, the camera is stretched along the concrete gap. During this process, the electric push rod is activated to pull the slider to slide on the limit rod to adjust the position. This improves the adjustment performance of the equipment and thus improves its practicality.

[0020] 3. When the equipment needs to inspect multiple gaps, the sliding adjustment frame slides along the curved rod connected to the slider to adjust its height. After adjustment, turn knob two to fix it. After fixing, the rollers support the ground, and start motor three to rotate, which drives the rollers to rotate and move the equipment. After movement, rotate the connecting plate to drive the positioning shaft connected to it to rotate on the module plate, which drives the rollers to rise and support the adjustment frame on the ground. This improves the displacement performance of the equipment and enhances its practicality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a concrete crack width measuring device according to the present invention;

[0022] Figure 2 This is a schematic diagram of the connection structure of the width measuring instrument and the connecting line of the concrete crack width measuring device of this utility model;

[0023] Figure 3 This is a schematic diagram of the connection structure between the drive gear and the driven gear of a concrete crack width measuring device according to this utility model.

[0024] Figure 4 This is a schematic diagram of the connection structure of the lead screw and screw hole of the concrete crack width measuring device of this utility model;

[0025] Figure 5 This is a schematic diagram of the connection structure of the roller and connecting plate of the concrete crack width measuring device of this utility model.

[0026] In the diagram: 1. Width measuring instrument; 2. Connecting cable; 3. Camera; 4. Connecting sleeve; 5. Connecting hole; 6. Rotating shaft; 7. Shaft bracket; 8. Knob 1; 9. Guide rail; 10. Positioning frame; 11. Limiting rod; 12. Slider; 13. Electric push rod 1; 14. Driven gear; 15. Drive gear; 16. Motor 1; 17. Screw hole; 18. Lead screw; 19. Motor 2; 20. Crank rod; 21. Adjusting frame; 22. Knob 2; 23. Module plate; 24. Positioning shaft; 25. Connecting piece; 26. Roller; 27. Motor 3; 28. Electric push rod 2; 29. ​​Positioning rod; 30. Support block; 31. Tire. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figure 1-5 A concrete crack width measuring device includes a width measuring instrument 1. The output end of the width measuring instrument 1 is provided with a connecting line 2. A camera 3 is mounted on the connecting line 2. A detection device is mounted on the camera 3. The detection device includes a connecting sleeve 4 with a connecting hole 5. The connecting line 2 passes through the connecting hole 5 and is fixedly fitted to the connecting sleeve 4. A rotating shaft 6 is mounted on the connecting sleeve 4. A shaft frame 7 is rotatably connected to the rotating shaft 6. A knob 8 is provided on the shaft frame 7. An adjustment device is provided at the bottom of the shaft frame 7. The adjustment device includes a guide rail 9. The top end of the guide rail 9 is connected to the bottom end of the shaft frame 7. A positioning frame 10 is slidably connected to the guide rail 9. A limit rod 11 is provided on the positioning frame 10. A slider 12 is provided on the limit rod 11. An electric push rod 13 is provided on the slider 12. One end of the electric push rod 13 is connected to the positioning frame 10. A displacement component is provided at the bottom of the slider 12.

[0031] In this embodiment of the application: a driven gear 14 is provided on the rotating shaft 6, and a drive gear 15 is meshed with the driven gear 14. A motor 16 is matched with the drive gear 15, and one end of the motor 16 is connected to one end of the shaft frame 7. During the detection of concrete cracks, the device is placed on the ground, and the motor 16 is started to rotate on the shaft frame 7. During the rotation, the drive gear 15 connected to it rotates accordingly. The drive gear 15 and the driven gear 14 mesh, and the driven gear 14 is fixed on the rotating shaft 6, thereby driving the rotating shaft 6 and the camera 3 along... The shaft frame 7 rotates and is secured with the rotating knob 8. The knob 8 is a bolt structure, and its end is threaded into the body of the shaft frame 7. By tightening, its end is pressed against the rotating shaft 6, and the friction force is used to fix it, thereby adjusting the horizontal angle between the camera 3 and the ground. During this process, the sliding positioning frame 10 slides along the guide rail 9 at the bottom of the shaft frame 7 to adjust its position. After adjusting the position of the camera 3 in the longitudinal direction of the concrete gap, the camera 3 moves along the concrete gap for detection. During this process, the electric push rod 13 is activated, which pulls the slider 12 to slide on the limit rod 11.

[0032] More specifically: the positioning frame 10 is provided with a screw hole 17, and a lead screw 18 is threadedly connected to the screw hole 17. The lead screw 18 is equipped with a second motor 19. One end of the second motor 19 is connected to one end of the shaft frame 7. During the adjustment of the positioning frame 10, the second motor 19 is started to rotate on the shaft frame 7, which drives the lead screw 18 connected to it to rotate accordingly. The lead screw 18 drives the threaded positioning frame 10 to slide along the guide rail 9.

[0033] More specifically: the displacement assembly includes a crank 20, the top end of which is connected to the bottom end of a slider 12. An adjustment frame 21 is slidably connected to the crank 20. A knob 22 is provided on the adjustment frame 21. A module plate 23 is provided on the adjustment frame 21. A positioning shaft 24 is provided on the module plate 23. A connecting piece 25 is provided on the positioning shaft 24. A roller 26 is provided on the connecting piece 25. A motor 27 is provided on the roller 26. One end of the motor 27 is connected to one end of the connecting piece 25. When the equipment needs to detect multiple gaps, the adjustment frame 21 is slid to move along... The height of the crank 20 connected to the slider 12 is adjusted by sliding. After adjustment, the knob 22 is rotated to fix it. The knob 22 is a bolt structure, and its end is threaded with the body of the adjustment frame 21. By tightening, its end is pressed against the crank 20, and the friction force is used to fix it. After fixing, the roller 26 supports the ground. The motor 27 is started to rotate, which drives the roller 26 to rotate and move the equipment. After the movement is completed, the connecting piece 25 is rotated to drive the positioning shaft 24 connected to it to rotate on the module plate 23, which drives the roller 26 to rise, so that the adjustment frame 21 supports the ground.

[0034] More specifically: an electric push rod 28 is provided on the connecting piece 25, and a positioning rod 29 is hinged to the output end of the electric push rod 28. The other end of the positioning rod 29 is rotatably connected to the adjusting frame 21. During the adjustment of the connecting piece 25, the electric push rod 28 is activated to extend and retract, so that it drives the positioning rod 29 connected to it to pull or push the adjusting frame 21.

[0035] More specifically: the bottom end of the adjustment frame 21 is provided with a support block 30. During the process of the adjustment frame 21 supporting the ground, the support block 30 is added to improve the buffering of the equipment.

[0036] More specifically: the roller 26 is provided with a belt 31, and when the roller 26 rolls, the belt 31 is fitted onto it to increase the friction with the ground.

[0037] In summary, during the detection of concrete cracks, the equipment is placed on the ground, and the motor 16 is started to rotate on the shaft frame 7. During rotation, the drive gear 15 connected to it rotates accordingly. The drive gear 15 meshes with the driven gear 14, which is fixed to the rotating shaft 6. This causes the rotating shaft 6 and the camera 3 to rotate along the shaft frame 7. A rotating knob 8 is used for tightening. The knob 8 is a bolt structure, with its end threaded into the shaft frame 7. Tightening it presses its end against the rotating shaft 6, using friction to achieve fixation. Adjust the horizontal angle between camera 3 and the ground. During this process, slide the positioning frame 10 to adjust its position along the guide rail 9 at the bottom of the shaft frame 7. After adjusting the position of camera 3 in the longitudinal direction of the concrete gap, move camera 3 along the concrete gap for detection. During this process, start the electric push rod 13 to pull the slider 12 to slide on the limit rod 11. While adjusting the positioning frame 10, start the motor 19 to rotate on the shaft frame 7, which drives the lead screw 18 connected to it to rotate. The lead screw 18 drives the threaded positioning frame 1. The positioning frame 10 slides along the guide rail 9. During the adjustment of the positioning frame 10, the start motor 19 rotates on the shaft frame 7, causing the lead screw 18 connected to it to rotate. The lead screw 18 drives the threaded positioning frame 10 to slide along the guide rail 9. When the equipment needs to detect multiple gaps, the sliding adjustment frame 21 slides along the crank 20 connected to the slider 12 to adjust the height. After adjustment, the knob 22 is rotated to fix it. The knob 22 is a bolt structure, and its end is threaded with the body of the adjustment frame 21. Tightening it will fix it. The end is pressed against the curved rod 20 and fixed by friction. After fixing, it is supported by the ground through the roller 26. The motor 27 is started to rotate, which drives the roller 26 to rotate and move the equipment. After the movement is completed, the connecting plate 25 is rotated, which drives the positioning shaft 24 connected to it to rotate on the module plate 23, which drives the roller 26 to rise, so that the adjustment frame 21 is supported by the ground. During the adjustment of the connecting plate 25, the electric push rod 28 is started to extend and retract, which drives the positioning rod 29 connected to it to pull or push the adjustment frame 21.

[0038] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A concrete crack width measuring device, comprising a width measuring instrument (1), wherein the output end of the width measuring instrument (1) is provided with a connecting line (2), a camera (3) is provided on the connecting line (2), and a detection device is provided on the camera (3), characterized in that: The detection device includes a connecting sleeve (4), a connecting hole (5) is provided on the connecting sleeve (4), the connecting wire (2) passes through the connecting hole (5) and the connecting sleeve (4) and is fixedly fitted, a rotating shaft (6) is provided on the connecting sleeve (4), a shaft frame (7) is rotatably connected on the rotating shaft (6), a knob (8) is provided on the shaft frame (7), an adjustment device is provided at the bottom end of the shaft frame (7), the adjustment device includes a guide rail (9), the top end of the guide rail (9) is connected to the bottom end of the shaft frame (7), a positioning frame (10) is slidably connected on the guide rail (9), a limit rod (11) is provided on the positioning frame (10), a slider (12) is provided on the limit rod (11), an electric push rod (13) is provided on the slider (12), one end of the electric push rod (13) is connected to the positioning frame (10), and a displacement component is provided at the bottom end of the slider (12).

2. The concrete crack width measuring device according to claim 1, characterized in that: A driven gear (14) is provided on the rotating shaft (6), and a drive gear (15) is meshed with the driven gear (14). A motor (16) is provided with the drive gear (15), and one end of the motor (16) is connected to one end of the shaft frame (7).

3. The concrete crack width measuring device according to claim 2, characterized in that: The positioning frame (10) is provided with a screw hole (17), and a lead screw (18) is threadedly connected to the screw hole (17). The lead screw (18) is equipped with a second motor (19), and one end of the second motor (19) is connected to one end of the shaft frame (7).

4. The concrete crack width measuring device according to claim 1, characterized in that: The displacement component includes a crank (20), the top end of which is connected to the bottom end of a slider (12). An adjustment frame (21) is slidably connected to the crank (20). A knob (22) is provided on the adjustment frame (21). A module plate (23) is provided on the adjustment frame (21). A positioning shaft (24) is provided on the module plate (23). A connecting piece (25) is provided on the positioning shaft (24). A roller (26) is provided on the connecting piece (25). A motor (27) is provided on the roller (26). One end of the motor (27) is connected to one end of the connecting piece (25).

5. A concrete crack width measuring device according to claim 4, characterized in that: An electric push rod (28) is provided on the connecting piece (25). A positioning rod (29) is hinged on the output end of the electric push rod (28). The other end of the positioning rod (29) is rotatably connected to the adjusting frame (21).

6. A concrete crack width measuring device according to claim 4, characterized in that: The bottom end of the adjustment frame (21) is provided with a support block (30).

7. A concrete crack width measuring device according to claim 4, characterized in that: The roller (26) is provided with a tire (31).

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