Plant ground crack measuring device

By using an inclined guide ring and induction line to detect crack width in a factory floor crack measuring device, and equipped with a cleaning component to remove impurities, the problem of inaccurate measurement in the prior art is solved, enabling accurate measurement of crack length and width and improving the accuracy of assessment.

CN121474984APending Publication Date: 2026-02-06CHINA CONSTRUCTION EIGHTH BUREAU (INNER MONGOLIA) CONSTRUCTION CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202511776422.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-28
Publication Date
2026-02-06

AI Technical Summary

Technical Problem

Existing factory floor crack measurement devices are unable to continuously and accurately capture and record crack width changes, resulting in a lack of complete description of crack cross-sectional morphology in the assessment results. This makes it impossible to accurately calculate the maximum width value and analyze the details of crack width changes along the extension direction, affecting the accuracy of cause judgment and risk level assessment.

Method used

The device employs a guide ring with an inclined sidewall design, and the sensing wire contacts the inner sidewall of the crack. The sensing wire generates an electrical signal to detect the crack width, and the measuring teeth on the rotating shaft are used to calculate the crack length. It is also equipped with a cleaning component and a vibration component to remove ground impurities, ensuring measurement accuracy.

Benefits of technology

It enables precise measurement of crack length and width, reduces measurement errors, and improves the accuracy and reliability of crack assessment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121474984A_ABST
    Figure CN121474984A_ABST
Patent Text Reader

Abstract

The invention belongs to the technical field of measuring devices, and particularly relates to a plant ground crack measuring device which comprises a mounting frame, a rolling assembly is arranged in the mounting frame, and a detection assembly is arranged in the mounting frame. According to the crack detection device, the side wall of the guide ring is inclined, so that the guide ring is clamped into the crack, the induction line is laid on the side wall of the guide ring, the induction line makes contact with the inner side wall of the crack, the induction line generates an electric signal and sends the electric signal into the detection device, and the detection device can know the width of the crack; the current radius can be known through an electric signal sent by the induction line, the measuring teeth on the side wall of the rotating shaft are detected through the detection device, the rotating angle of the rolling wheel is judged, the length of the crack can be calculated by calculating the rolling angle of the rolling wheel, and the effect of measuring the crack width while measuring the crack length is achieved. The problem that an existing crack measuring device cannot measure the width of a crack is solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of measuring device technology, and in particular to a device for measuring cracks in factory floors. Background Technology

[0002] As the foundation of industrial production, the structural health of factory floors directly affects equipment operation safety and production efficiency. Cracks in the floor are a common problem, requiring regular inspection, measurement, and recording to assess their development trend and potential risks.

[0003] A search revealed Chinese patent CN120084216A, which discloses a device for measuring cracks in factory floors. The device includes a base mounted on a mobile platform, a lifting box mounted on the base, and a pair of electric push rods connected between the base and the lifting box. Adjustable arms are rotatably connected to both ends of the lifting box. A motor matching the adjustable arms is installed inside the lifting box. Each adjustable arm includes a pair of electric telescopic rods, with fixed blocks connected to the telescopic ends of each pair of electric telescopic rods. An electric guide rail assembly is rotatably connected between the pair of fixed blocks. An auxiliary motor for driving the rotation of the electric guide rail assembly is mounted on each fixed block. A pair of measuring units are slidably connected to the electric guide rail assembly. Each measuring unit includes a mounting shell, with a measuring probe fixedly connected to the lower end of the mounting shell and a mating ring matching the measuring probe connected to the upper end of the mounting shell. This device achieves efficient and automated measurement of cracks in factory floors and provides self-protection for the equipment.

[0004] In the risk assessment of cracks in factory floors, the "maximum width" and "width variation trend" of the crack are key indicators for judging the activity and hazard level of the crack. However, the existing technical solutions mentioned above focus on achieving automated movement and positioning of the measuring probe to complete the macroscopic scanning and measurement of the crack. It is difficult to continuously and accurately capture and record the continuous width variation curve of a crack at different locations. This results in the final assessment results lacking a complete description of the cross-sectional morphology of the crack, making it impossible to accurately calculate the maximum width value, and also making it difficult to analyze the details of the width variation of the crack along its extension direction. This may affect the accuracy of the judgment of the crack's cause and the assessment of its risk level. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention proposes a factory floor crack measuring device. Because the sidewall of the guide ring is inclined, it is inserted into the crack. An induction wire is laid on the sidewall of the guide ring, so it contacts the inner sidewall of the crack. The induction wire generates an electrical signal, which is sent into the detection device, allowing the device to determine the crack width. The current radius can be determined by the electrical signal sent by the induction wire. The measuring teeth on the sidewall of the rotating shaft are detected by the detection device to determine the angle of the roller's rotation. By calculating the roller's rolling angle, the length of the crack can be calculated, achieving the effect of measuring both the crack length and width simultaneously.

[0006] The technical solution to achieve the purpose of this invention is: a factory floor crack measuring device, including a mounting frame, wherein a rolling assembly is disposed inside the mounting frame, and the rolling assembly includes:

[0007] The roller is located inside the mounting frame. Rotating shafts are fixedly installed on both the left and right side walls of the roller, and both rotating shafts are rotatably installed on the inner side wall of the mounting frame.

[0008] A guide ring is fixedly installed on the outer side wall of the roller, and the cross-section of the guide ring is triangular.

[0009] The mounting bracket contains a detection component, which includes:

[0010] The detection device is fixedly installed inside the mounting frame, and the detection device is aligned with the side wall of the rotating shaft. Multiple measuring teeth are equidistantly installed on the outer circumference of the rotating shaft.

[0011] The induction wires are multiple in number and are fixedly installed at equal intervals on the outer wall of the guide ring.

[0012] In some embodiments, a cleaning assembly is provided on the exterior of the mounting bracket, the cleaning assembly comprising:

[0013] There are two positioning shafts, which are rotatably mounted on the left and right side walls of the mounting frame. Mounting rods are fixedly mounted on the side walls of the two positioning shafts, and a cleaning scraper is fixedly mounted on the end of the mounting rod away from the positioning shaft.

[0014] In some embodiments, the cleaning component further includes:

[0015] A guide plate is fixedly installed on the side wall of the cleaning scraper, and the side wall of the guide plate is inclined.

[0016] In some embodiments, the cleaning component further includes:

[0017] There are two fixed rods, which are fixedly installed on the left and right side walls of the mounting frame respectively. An extension rod is slidably installed at the bottom end of each fixed rod. A limit block is fixedly installed on the top wall of the extension rod. An extension spring is fixedly connected to the top of the limit block. The top of the extension spring is fixedly connected to the top wall inside the fixed rod.

[0018] In some embodiments, a vibration assembly is disposed outside the roller, the vibration assembly comprising:

[0019] The pressing spring plates are multiple in number and are fixedly installed circumferentially on the left and right sides of the roller. The pressing spring plates are made of an elastic material, and the end of the pressing spring plate away from the roller is aligned with the side wall of the mounting rod.

[0020] In some embodiments, the vibration assembly further includes:

[0021] The mounting plate is fixedly mounted on the side wall of the rotating shaft. Multiple actuating teeth are fixedly mounted circumferentially on the side wall of the mounting plate away from the rotating shaft. A vibration strip is provided on the outside of the mounting plate, and the vibration strip is in contact with the side wall of the actuating teeth.

[0022] In some embodiments, the side wall of the mounting bracket is provided with a movable groove that aligns with the pressing spring plate.

[0023] In some embodiments, a limiting plate is fixedly installed on the side wall of the fixing rod, the limiting plate is rotatably installed inside the mounting frame, and the vibration strip is fixedly installed on the side wall of the limiting plate.

[0024] In some embodiments, a handle assembly is provided on the top of the mounting bracket, the handle assembly comprising:

[0025] A positioning rod is fixedly installed on the top wall of the mounting frame, and an adjusting screw is installed on the internal thread of the positioning rod;

[0026] A handle is fixedly mounted on the top wall of the adjusting screw.

[0027] The significant advantages of this invention compared to existing technologies are:

[0028] Firstly, this invention, due to the inclined sidewall of the guide ring, allows it to be inserted into the crack. Since induction wires are laid on the sidewall of the guide ring, these wires contact the inner sidewall of the crack, generating an electrical signal that is sent to the detection device. The detection device can then determine the crack width. The current radius can be determined through the electrical signal sent by the induction wires. By detecting the measuring teeth on the sidewall of the rotating shaft, the angle of the roller's rotation can be determined. By calculating the roller's rolling angle, the length of the crack can be calculated. This achieves the effect of measuring both the crack length and width simultaneously, solving the problem that existing crack measuring devices cannot measure the crack width.

[0029] Secondly, in this invention, the cleaning scraper is rotatably mounted on the side wall of the positioning shaft via the mounting rod, which facilitates the adjustment of the scraper's angle, allowing it to fit snugly against the ground and remove impurities. This prevents measurement errors caused by excessive impurities raising the ground height. By setting the side wall of the guide plate to be inclined, the impurities removed by the scraper can be guided to both sides, preventing the roller from pressing on the impurities and causing measurement errors. By using the elasticity of the extension spring to push the extension rod downward, the extension rod can be pressed against the side wall of the mounting rod, thus allowing the scraper to fit tightly against the ground and easily remove impurities.

[0030] Thirdly, in this invention, by aligning the end of the pressing spring plate away from the roller with the side wall of the mounting rod, the pressing spring plate will press against the side wall of the mounting rod as the roller rotates. Since the pressing spring plate has a certain elasticity, as the roller continues to roll, the pressing spring plate will deform until it is misaligned with the mounting rod. Therefore, the mounting rod will be repeatedly pressed, causing the mounting rod and the cleaning scraper to vibrate. This facilitates the guide plate to guide the impurities to both sides, preventing the impurities from accumulating on the top of the cleaning scraper.

[0031] Fourthly, this invention limits the position of the fixed rod by a limiting plate, ensuring that the fixed rod is stably rotated inside the mounting frame. When the rotating shaft rotates with the roller, the actuating teeth will repeatedly actuate the vibrating strip, thus generating high-frequency vibration. The vibration is transmitted to the side wall of the cleaning scraper through the fixed rod and the movable groove, further improving the efficiency of removing impurities. Attached Figure Description

[0032] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0033] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0034] Figure 2 This is a three-dimensional schematic diagram of the overall structure of the roller of the present invention;

[0035] Figure 3 This is the present invention. Figure 2 Enlarged view of point A in the middle;

[0036] Figure 4 This is a schematic diagram of the internal structure of the fixing rod of the present invention;

[0037] Figure 5 This is a schematic diagram of the internal structure of the mounting bracket of the present invention;

[0038] Figure 6 This is the present invention. Figure 5 Enlarged diagram of point B in the middle.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Mounting bracket; 21. Positioning rod; 22. Adjusting screw; 23. Handle; 31. Roller; 32. Rotating shaft; 33. Guide ring; 41. Measuring teeth; 42. Detection device; 43. Sensing line; 51. Positioning shaft; 52. Mounting rod; 53. Cleaning scraper; 54. Guide plate; 55. Fixing rod; 56. Extension rod; 57. Limiting block; 58. Extension spring; 61. Pressing spring plate; 62. Movable groove; 63. Mounting plate; 64. Actuating teeth; 65. Limiting plate; 66. Vibration bar. Detailed Implementation

[0041] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. 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.

[0042] This invention provides an improved device for measuring cracks in factory floors. The technical solution of this invention is as follows:

[0043] like Figures 1-5 As shown, a factory floor crack measuring device includes a mounting frame 1, and a rolling assembly is provided inside the mounting frame 1. The rolling assembly includes a roller 31 and a guide ring 33.

[0044] The roller 31 is installed inside the mounting frame 1. Rotating shafts 32 are fixedly installed on both the left and right side walls of the roller 31. Both rotating shafts 32 are rotatably installed on the inner side wall of the mounting frame 1.

[0045] The guide ring 33 is fixedly installed on the outer side wall of the roller 31, and the cross-section of the guide ring 33 is triangular.

[0046] The mounting bracket 1 is equipped with a detection component, which includes a detection device 42 and a sensing line 43.

[0047] The detection device 42 is fixedly installed inside the mounting bracket 1. The detection device 42 is aligned with the side wall of the rotating shaft 32. Multiple measuring teeth 41 are equidistantly installed on the outer circumference of the rotating shaft 32.

[0048] There are multiple induction lines 43, and the multiple induction lines 43 are fixedly installed at equal intervals on the outer wall of the guide ring 33;

[0049] The top of the mounting bracket 1 is provided with a handle assembly, which includes a positioning rod 21 and a handle 23;

[0050] The positioning rod 21 is fixedly installed on the top wall of the mounting bracket 1, and the internal thread of the positioning rod 21 is fitted with an adjusting screw 22;

[0051] The handle 23 is fixedly installed on the top wall of the adjusting screw 22. The operator holds the handle 23 to rotate the mounting bracket 1 around the rotating shaft 32, adjusting the angle of the handle assembly to facilitate the operator pushing the roller 31 to roll. Since the side wall of the guide ring 33 is inclined, the guide ring 33 is stuck inside the crack. The side wall of the guide ring 33 is covered with a sensing wire 43, so the sensing wire 43 will contact the inner side wall of the crack. The sensing wire 43 generates an electrical signal and sends it into the detection device 42. The detection device 42 can then determine the width of the crack. The current radius can be determined by the electrical signal sent by the sensing wire 43. The detection device 42 detects the measuring teeth 41 on the side wall of the rotating shaft 32 to determine the angle of rotation of the roller 31. The length of the crack can be calculated by calculating the angle of rotation of the roller 31.

[0052] like Figures 1-5 As shown, in one embodiment, a cleaning assembly is provided on the outside of the mounting bracket 1. The cleaning assembly includes a positioning shaft 51, a guide plate 54, and a fixing rod 55.

[0053] There are two positioning shafts 51, which are rotatably mounted on the left and right side walls of the mounting bracket 1 respectively. Mounting rods 52 are fixedly mounted on the side walls of the two positioning shafts 51. A cleaning scraper 53 is fixedly mounted on the end of the mounting rod 52 away from the positioning shaft 51. The cleaning scraper 53 is rotatably mounted on the side wall of the positioning shaft 51 by the mounting rod 52, which makes it easy to adjust the angle of the cleaning scraper 53 so that the cleaning scraper 53 can fit with the ground and remove the impurities on the ground. This avoids the ground from becoming too high due to a lot of impurities, which could cause errors in the measurement results.

[0054] The guide plate 54 is fixedly installed on the side wall of the cleaning scraper 53, and the side wall of the guide plate 54 is inclined. By setting the side wall of the guide plate 54 to be inclined, the impurities scraped off by the cleaning scraper 53 can be guided to both sides, avoiding the situation where the roller 31 presses on the impurities, which would cause errors in the measurement results.

[0055] There are two fixing rods 55, which are fixedly installed on the left and right side walls of the mounting bracket 1 respectively. An extension rod 56 is slidably installed at the bottom end of each fixing rod 55. A limit block 57 is fixedly installed on the top wall of the extension rod 56. An extension spring 58 is fixedly connected to the top of the limit block 57. The top of the extension spring 58 is fixedly connected to the top wall inside the fixing rod 55. By using the elasticity of the extension spring 58 to push the extension rod 56 downward, the extension rod 56 can press against the side wall of the mounting rod 52. The cleaning scraper 53 can thus fit tightly against the ground, making it easy for the cleaning scraper 53 to remove impurities from the ground.

[0056] like Figures 1-6As shown, in one embodiment, a vibration assembly is provided on the outside of the roller 31, the vibration assembly including a pressing spring plate 61 and a mounting plate 63;

[0057] Multiple pressing spring plates 61 are fixedly installed circumferentially on the left and right sides of the roller 31. The pressing spring plates 61 are made of elastic material. The end of the pressing spring plate 61 away from the roller 31 is aligned with the side wall of the mounting rod 52. The side wall of the mounting frame 1 is provided with a movable groove 62 aligned with the pressing spring plate 61. By aligning the end of the pressing spring plate 61 away from the roller 31 with the side wall of the mounting rod 52, when the pressing spring plate 61 rotates with the roller 31, it will press against the side wall of the mounting rod 52. Since the pressing spring plate 61 has a certain elasticity, as the roller 31 continues to roll, the pressing spring plate 61 will deform until it is misaligned with the mounting rod 52. Therefore, the mounting rod 52 will be repeatedly pressed, causing the mounting rod 52 and the cleaning scraper 53 to vibrate. This facilitates the guide plate 54 to guide the impurities to both sides, preventing the impurities from accumulating on the top of the cleaning scraper 53.

[0058] The mounting plate 63 is fixedly mounted on the side wall of the rotating shaft 32. Multiple actuating teeth 64 are fixedly mounted circumferentially on the side wall of the mounting plate 63 away from the rotating shaft 32. A limiting plate 65 is fixedly mounted on the side wall of the fixing rod 55. The limiting plate 65 is rotatably mounted inside the mounting frame 1. A vibrating strip 66 is provided on the outside of the mounting plate 63. The vibrating strip 66 is fixedly mounted on the side wall of the limiting plate 65 and fits against the side wall of the actuating teeth 64. The position of the fixing rod 55 is limited by the limiting plate 65 to ensure that the fixing rod 55 is stably rotated and mounted inside the mounting frame 1. When the rotating shaft 32 rotates with the roller 31, the actuating teeth 64 will repeatedly actuate the vibrating strip 66 as it rotates. The vibrating strip 66 will therefore generate high-frequency vibration. The vibration is transmitted to the side wall of the cleaning scraper 53 through the fixing rod 55 and the movable groove 62, further improving the efficiency of removing impurities.

[0059] The specific working method is as follows: The operator grips handle 23, causing the mounting bracket 1 to rotate around the rotating shaft 32. Adjusting the angle of the handle assembly facilitates the operator pushing the roller 31. Because the sidewall of the guide ring 33 is inclined, it is inserted into the crack. Since the sidewall of the guide ring 33 is covered with induction wires 43, these wires contact the inner wall of the crack, generating an electrical signal that is sent to the detection device 42. The detection device 42 can then determine the width of the crack. The current radius can be determined by the electrical signal sent by the induction wires 43. The detection device 42 detects the measuring teeth 41 on the sidewall of the rotating shaft 32 to determine the rotation angle of the roller 31. By calculating the rotation angle of the roller 31, the length of the crack can be calculated. The cleaning scraper 5 is then mounted via the mounting rod 52. 3. The cleaning scraper 53 is rotatably mounted on the side wall of the positioning shaft 51, which facilitates the adjustment of the angle of the cleaning scraper 53, allowing the cleaning scraper 53 to fit against the ground and remove impurities from the ground. This prevents the ground from becoming too high due to excessive impurities, which could lead to errors in the measurement results. By aligning the end of the pressing spring plate 61 away from the roller 31 with the side wall of the mounting rod 52, the pressing spring plate 61 will press against the side wall of the mounting rod 52 as the roller 31 rotates. Since the pressing spring plate 61 has a certain elasticity, it will deform until it is misaligned with the mounting rod 52 as the roller 31 continues to roll. Therefore, the mounting rod 52 will be repeatedly pressed, causing the mounting rod 52 and the cleaning scraper 53 to vibrate. This facilitates the guide plate 54 to guide the impurities to both sides, preventing impurities from accumulating on the top of the cleaning scraper 53.

[0060] The technical means disclosed in this invention are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this invention are common knowledge to those skilled in the art.

Claims

1. A device for measuring cracks in factory floor, comprising a mounting frame (1), characterized in that: The mounting bracket (1) is internally provided with a rolling assembly, which includes: Roller (31), the roller (31) is set inside the mounting frame (1), and rotating shafts (32) are fixedly installed on the left and right side walls of the roller (31). Both rotating shafts (32) are rotatably installed on the inner side wall of the mounting frame (1). Guide ring (33), the guide ring (33) is fixedly installed on the outer side wall of the roller (31), and the cross-section of the guide ring (33) is triangular; The mounting bracket (1) is equipped with a detection component, which includes: The detection device (42) is fixedly installed inside the mounting bracket (1). The detection device (42) is aligned with the side wall of the rotating shaft (32). Multiple measuring teeth (41) are equidistantly installed on the outer circumference of the rotating shaft (32). There are multiple sensing lines (43), and multiple sensing lines (43) are fixedly installed at equal intervals on the outer wall of the guide ring (33).

2. The factory floor crack measuring device according to claim 1, characterized in that: The mounting bracket (1) is externally provided with a cleaning component, which includes: Positioning shaft (51), there are two positioning shafts (51), the two positioning shafts (51) are respectively rotatably installed on the left and right side walls of the mounting bracket (1), and mounting rods (52) are fixedly installed on the side walls of the two positioning shafts (51), and a cleaning scraper (53) is fixedly installed on the end of the mounting rod (52) away from the positioning shaft (51).

3. The factory floor crack measuring device according to claim 2, characterized in that: The cleaning component also includes: A guide plate (54) is fixedly installed on the side wall of the cleaning scraper (53), and the side wall of the guide plate (54) is inclined.

4. The factory floor crack measuring device according to claim 2, characterized in that: The cleaning component also includes: There are two fixed rods (55). The two fixed rods (55) are fixedly installed on the left and right side walls of the mounting frame (1). The bottom end of each fixed rod (55) is slidably installed with an extension rod (56). The top wall of the extension rod (56) is fixedly installed with a limit block (57). The top end of the limit block (57) is fixedly connected with an extension spring (58). The top end of the extension spring (58) is fixedly connected to the top wall of the fixed rod (55).

5. The factory floor crack measuring device according to claim 4, characterized in that: The roller (31) is provided with a vibration assembly on its exterior, the vibration assembly including: Pressing spring plate (61), there are multiple pressing spring plates (61), and multiple pressing spring plates (61) are fixedly installed on the left and right sides of the roller (31) at equal intervals around the circumference. The pressing spring plate (61) is made of an elastic material, and the end of the pressing spring plate (61) away from the roller (31) is aligned with the side wall of the mounting rod (52).

6. The factory floor crack measuring device according to claim 5, characterized in that: The vibration assembly also includes: Mounting disc (63) is fixedly mounted on the side wall of rotating shaft (32). Multiple actuating teeth (64) are fixedly mounted circumferentially on the side wall of mounting disc (63) away from rotating shaft (32). Vibration strip (66) is provided on the outside of mounting disc (63), and the vibration strip (66) is in contact with the side wall of actuating teeth (64).

7. The factory floor crack measuring device according to claim 5, characterized in that: The mounting bracket (1) has a movable groove (62) on its side wall that is aligned with the pressing spring plate (61).

8. The factory floor crack measuring device according to claim 6, characterized in that: A limiting plate (65) is fixedly installed on the side wall of the fixed rod (55). The limiting plate (65) is rotatably installed inside the mounting frame (1). The vibration strip (66) is fixedly installed on the side wall of the limiting plate (65).

9. A factory floor crack measuring device according to claim 1, characterized in that: The top of the mounting bracket (1) is provided with a handle assembly, which includes: Positioning rod (21), the positioning rod (21) is fixedly installed on the top wall of the mounting frame (1), and the internal thread of the positioning rod (21) is fitted with an adjusting screw (22). A handle (23) is fixedly mounted on the top wall of the adjusting screw (22).

Citation Information

Patent Citations

  • Plant ground crack measuring device

    CN120084216A