Wall condition detection device and detection method

Abstract

The invention relates to a wall condition detection device and method, and belongs to the technical field of wall detection, the wall condition detection device comprises a probe and a flat plate used for receiving data detected by the probe, and further comprises a base, a sliding rail and a telescopic assembly, and the telescopic assembly is located on the base; a plurality of universal wheels are mounted at the bottom of the base; the telescopic assembly comprises an end joint, a sliding joint, a first motor and a first screw rod, the end joint is fixed to the top of the base and provided with an upward opening, the sliding joint is slidably arranged in the end joint in the vertical direction, the first motor is fixed to the base, and the rotating end of the first motor is fixedly connected with the bottom end of the first screw rod; the first screw rod is vertically arranged and penetrates through the end joint and the sliding joint, the first screw rod is in threaded connection with the sliding joint, and the first screw rod rotates relative to the end joint; the sliding rail is located at the top of the sliding joint, and the probe is slidably arranged on the sliding rail in the horizontal direction.

Description

Technical Field

[0001] The present application relates to the technical field of wall detection, and in particular to a wall condition detection device and detection method. Background Art

[0002] As time goes by, house buildings gradually age. Over the long course of time, houses are affected by foundation settlement, temperature changes, earthquakes, wind loads, etc., and cracks will appear on the walls of the houses.

[0003] A crack width observation instrument is often used when inspecting wall conditions. The crack width observation instrument consists of a flat plate body and a probe. The probe is calibrated before use. The probe is placed close to the crack for observation. The observation data will be displayed on the flat plate body for data analysis and recording.

[0004] During actual operation, cracks appear irregularly on the wall, not only in the lower area of the wall, but also in the upper area of the wall. For cracks near the top of the wall, the operator is required to send the probe to the top of the wall and move the probe position at the top of the wall according to the crack shape. This has the defect of inconvenient crack detection at the top of the wall. Summary of the Invention

[0005] In order to facilitate the convenient detection of cracks at the top of a wall, the present application provides a wall condition detection device and a detection method.

[0006] In a first aspect, the present application provides a wall condition detection device, which adopts the following technical solution: A wall condition detection device includes a probe and a flat plate body for receiving data detected by the probe, and also includes a base, a slide rail and a telescopic component, the telescopic component is located on the base; a plurality of universal wheels are installed at the bottom of the base; the telescopic component includes an end section, a sliding section, a first motor and a first screw, the end section is fixed to the top of the base and the opening is set upward, the sliding section is set to slide in the end section along the vertical direction, the first motor is fixed to the base, the rotating end of the first motor is fixedly connected to the bottom end of the first screw, the first screw is set vertically and passes through the end section and the sliding section, the first screw is threadedly connected to the sliding section, and the first screw rotates relative to the end section; the slide rail is located at the top of the sliding section, and the probe is set to slide on the slide rail along the horizontal direction.

[0007] By adopting the above technical solution, the base is moved close to the wall and moved below the crack, and the first motor is started. The first motor drives the sliding section to move upward relative to the end section through the first screw, thereby lifting the slide rail to the crack near the top of the wall. The probe then detects the crack, and the probe can also be adjusted in the horizontal direction to achieve the effect of convenient detection of cracks at the top of the wall.

[0008] Optionally, the sliding joint is provided with an extension joint, a traction belt and a fixed pulley, the fixed pulley is arranged at the top of the sliding joint, the sliding joint opening faces upward, and the extension joint is slidably arranged in the sliding joint along the vertical direction; one end of the traction belt is fixedly connected to the inner wall of the end joint, and the other end is fixedly connected to the outer wall of the extension joint, and the middle part of the traction belt is attached to the top of the fixed pulley.

[0009] By adopting this technical solution, the sliding section moves upward, simultaneously driving the fixed pulley upward, while the length of the traction belt remains constant. As the sliding section moves upward, the length of the traction belt between the end section and the sliding section increases, shortening the traction belt between the sliding section and the extension section. This ultimately pulls the extension section upward, expanding the probe's lifting range and speed.

[0010] Optionally, the cross-sections of the end section, the sliding section and the extension section are all rectangular so as to limit the sliding section and the extension section from rotating in the horizontal direction.

[0011] By adopting the above technical solution, through the rectangular shape setting, after the sliding joint is located inside the end section, the sliding joint and the inner wall of the end section are a pair of facing vertical side walls of the sliding joint, which can achieve the effect of limiting the sliding joint from rotating in the horizontal direction. Similarly, after the extension section is located inside the sliding section, such a setting can also achieve the purpose of limiting the rotation of the extension section.

[0012] Optionally, a slider, a second motor and a second screw are provided on the slide rail, the second motor is fixed at one end of the slide rail, the second screw is arranged along the length direction of the slide rail and one end is fixedly connected to the rotating end of the second motor, the second screw passes through the slider and is threadedly connected to the slider, the slider is slidably set on the slide rail and slides along the length direction of the slide rail; the probe is located on the slider.

[0013] By adopting the above technical solution, the second motor is started, the second motor drives the second screw to rotate, and the second screw cooperates with the slide rail to drive the slider to move on the slide rail, thereby achieving the effect of adjusting the horizontal position of the probe.

[0014] Optionally, the slider is provided with a shell and a sphere, the outer wall of the shell is fixed to the top of the slider, the sphere is rotatably arranged inside the shell, and the sphere rotates relative to the shell; the probe is inserted into the sphere; a steering assembly is provided between the shell and the sphere, and the steering assembly is used to adjust the rotation angle of the sphere relative to the shell.

[0015] By adopting the above technical solution, when there is a shape on the outer wall of the wall, that is, there is a crack on the inclined surface, the steering component drives the sphere to adjust the angle relative to the outer shell, so that the probe can be perpendicular to the inclined surface and the cracks on the inclined surface can be detected.

[0016] Optionally, a sliding groove is provided on the outer wall of the sphere, and a protrusion is fixed on the outer shell, and the protrusion is located in the sliding groove.

[0017] By adopting the above technical solution, the setting of the sliding groove and the protrusion limits the sliding path of the ball relative to the shell, making the ball more stable when sliding.

[0018] Optionally, the steering assembly includes a third motor, a bevel gear and a bevel gear ring. There is a distance between the outer wall of the sphere and the inner wall of the outer shell. The third motor is fixed inside the sphere. One end of the rotating shaft of the third motor protrudes from the sphere and is fixedly connected to the bevel gear. The bevel gear ring is semi-circular and fixed on the inner wall of the outer shell. The bevel gear is meshed with the bevel gear ring. The fixed position of the bevel gear ring and the opening position of the slide groove cooperate with each other for the rotation of the sphere relative to the outer shell.

[0019] By adopting the above technical solution, the third motor is started, and the third motor drives the bevel gear to rotate, and the bevel gear and the bevel gear ring are in a meshing state, thereby realizing the rotation of the sphere relative to the shell and realizing the angle adjustment of the probe.

[0020] Optionally, a cleaning brush is rotatably provided on the sphere, and the cleaning brush is arranged adjacent to the probe along the rotation direction of the sphere; the third motor adopts a hollow cup motor, and the end of the rotating shaft of the third motor away from the bevel gear protrudes from the outer casing of the third motor and is fixedly connected to the cleaning brush.

[0021] By adopting the above technical solution, the third motor can not only drive the sphere to rotate relative to the outer shell, but also drive the cleaning brush to rotate at the same time. That is, when the third motor is started back and forth, the sphere drives the cleaning brush to clean the wall surface, and then the cleaning brush is replaced by the probe facing the wall, which facilitates accurate detection of cracks.

[0022] Optionally, a slot is provided on the sphere, and the probe is inserted into the slot and the probe is magnetically adsorbed to the sphere.

[0023] By adopting the above technical solution, the opening of the slot makes it easier for the probe to be installed on the probe, and the magnetic attraction further improves the stability of the probe after it is inserted into the sphere.

[0024] In a second aspect, the present application provides a wall condition detection method, which adopts the following technical solutions: A wall condition detection method comprises the following steps: S1. Instrument preparation; S2, site cleaning; S3, preliminary observation; S4. Measurement operation: Select the starting point and adjust the instrument position so that the probe is perpendicular to the crack surface; perform the initial measurement and read the initial data, then slowly move the probe along the crack direction, perform continuous measurement and record the data; S5. Measurement of complex crack morphology: For "Y"-shaped cracks, first measure the main crack width according to the method in step S4. When reaching the branch point, measure each branch separately. For "T"-shaped cracks, first measure the transverse crack width to the intersection, focusing on the width at the intersection. Then, move the probe upward or downward from the intersection to measure. S6. The measurement is completed and the data is reviewed.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The telescopic assembly enables the probe to be adjusted in the vertical direction; 2. The slide rail enables the horizontal position of the probe to be adjusted; the setting of the housing, sphere and steering assembly enables the tilt angle of the probe to be adjusted; 3. The third motor can not only drive the sphere to rotate relative to the outer shell, but also drive the cleaning brush to rotate at the same time. That is, when the third motor is started back and forth, the sphere drives the cleaning brush to clean the wall surface, and then the cleaning brush is replaced by the probe facing the wall, which is convenient for accurate detection of cracks. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of an embodiment of the present application; Figure 2 It is a vertical structural cross-sectional view along the length direction of the slide rail; Figure 3 It is a schematic diagram of the local structure of the slide rail; Figure 4 It is a vertical structural cross-sectional view along the width direction of the slide rail.

[0027] Explanation of the accompanying drawings: 1. Base; 11. Universal wheel; 2. Telescopic assembly; 21. End section; 22. Sliding section; 23. First motor; 24. First screw; 3. Slide rail; 31. Slider; 32. Second motor; 33. Second screw; 4. Probe; 5. Extension section; 51. Traction belt; 52. Fixed pulley; 6. Housing; 61. Bump; 7. Sphere; 71. Slide groove; 72. Slot; 73. Cleaning brush; 8. Steering assembly; 81. Third motor; 82. Bevel gear; 83. Bevel gear ring. DETAILED DESCRIPTION

[0028] The following is combined with Figures 1-4 This application is described in further detail.

[0029] An embodiment of the present application discloses a wall condition detection device.

[0030] refer to Figure 1 and Figure 2A wall condition detection device includes a probe 4, a tablet, a base 1, a telescopic assembly 2, and a slide rail 3. Universal wheels 11 are mounted at the four corners of the bottom of the base 1. The telescopic assembly 2 is mounted on top of the base 1, and the slide rail 3 is mounted on top of the telescopic assembly 2. The probe 4 is slidably mounted on the slide rail 3 and slides horizontally. The inspector holds the tablet to receive data detected by the probe 4. The probe 4 and the tablet can be connected wirelessly. The tablet is not shown in the figure and is a conventional tablet computer.

[0031] refer to Figure 1 and Figure 2 The telescopic assembly 2 includes an end section 21, a sliding section 22, a first motor 23 and a first screw 24. The end section 21 and the sliding section 22 are both hollow inside and open upward. The horizontal cross-sections of the end section 21 and the sliding section 22 are both rectangular. The end section 21 is fixed on the top of the base 1. The sliding section 22 is located inside the end section 21 and slides relative to the end section 21 in the vertical direction. A pair of facing vertical outer walls of the sliding section 22 abut against the corresponding vertical inner walls of the end section 21, thereby limiting the sliding section 22 from rotating horizontally. The first motor 23 is fixed on the base 1. The rotating end of the first motor 23 is fixedly connected to the bottom end of the first screw 24. The first screw 24 is vertically arranged and passes through the end section 21 and the sliding section 22. The first screw 24 rotates relative to the end section 21 and is threadedly connected to the sliding section 22.

[0032] refer to Figure 1 and Figure 2 The sliding section 22 is provided with a fixed pulley 52, a traction belt 51 and an extension section 5. The extension section 5 is hollow inside with an opening facing upward. The horizontal cross-section of the extension section 5 is also rectangular. The extension section 5 is slidably arranged in the sliding section 22, and the sliding direction is along the vertical direction. A pair of vertical outer walls of the extension section 5 abut against the vertical inner walls of the corresponding adjacent sliding section 22, thereby limiting the horizontal rotation of the extension section 5. The fixed pulley 52 is set at the top of the sliding section 22. One end of the traction belt 51 is fixedly connected to the inner wall of the end section 21, and the other end is fixedly connected to the outer wall of the extension section 5 after passing through the fixed pulley 52. The middle part of the traction belt 51 is attached to the fixed pulley 52. The top end of the first screw 24 passes through the interior of the extension section 5, and the first screw 24 rotates relative to the extension section 5.

[0033] refer to Figure 3 and Figure 4 The slide rail 3 is fixed to the top of the extension section 5 and is arranged horizontally. The slide rail 3 is provided with a slider 31, a second motor 32, and a second screw 33. The second motor 32 is fixed at one end of the slide rail 3. The second screw 33 is arranged along the length direction of the slide rail 3 and one end is fixedly connected to the rotating end of the second motor 32. The second screw 33 passes through the slider 31 and is threadedly connected to the slider 31. The slider 31 is slidably arranged on the slide rail 3 and slides along the length direction of the slide rail 3.

[0034] refer to Figure 3 and Figure 4 The slider 31 is equipped with a housing 6, a ball 7, and a steering assembly 8. The outer wall of the housing 6 is fixed to the top of the slider 31. The housing 6 is C-shaped, with protrusions 61 fixed to each end of the housing 6. The protrusions 61 are located on the inner wall of the housing 6. The ball 7 is rotatably mounted within the housing 6 and rotates relative to the housing 6. A groove 71 is defined on the outer wall of the ball 7. The groove 71 is formed to conform to the curved surface of the ball 7. The protrusion 61 is inserted into the groove 71 and slides along its length. There is a distance between the inner wall of the housing 6 and the outer wall of the ball 7.

[0035] refer to Figure 3 and Figure 4 Sphere 7 has a slot 72 formed therein, into which probe 4 is inserted. Probe 4 and sphere 7 are also magnetically attracted to each other. A magnet is fixed to the probe 4 body, magnetically attracting the bottom of slot 72. That is, the bottom of slot 72 is made of a magnetically attractive material, such as iron. A cleaning brush 73 is rotatably mounted on sphere 7, positioned adjacent to probe 4 along the direction of rotation of sphere 7.

[0036] refer to Figure 3 and Figure 4 Steering assembly 8 includes a third motor 81, a bevel gear 82, and a bevel gear ring 83. Third motor 81 is fixed inside sphere 7 and is a coreless motor. One end of the rotating shaft of third motor 81 protrudes from sphere 7 and is fixedly connected to bevel gear 82. The other end passes through sphere 7 and is fixed to cleaning brush 73. Bevel gear ring 83 is semi-circular and fixed to the inner wall of housing 6. Bevel gear 82 meshes with bevel gear ring 83. Bevel gear ring 83 is fixed in a fixed position toward the opening of chute 71.

[0037] The implementation principle of a wall condition detection device in an embodiment of the present application is as follows: the base 1 is moved close to the wall and moved to the bottom of the crack, and the first motor 23 is started. The first motor 23 drives the sliding section 22 to move upward relative to the end section 21 through the first screw 24, thereby lifting the slide rail 3 and lifting it to the crack close to the top of the wall. Then the probe 4 detects the crack, and the probe 4 can also adjust its position in the horizontal direction by starting the second motor 32. When the top of the wall is an inclined surface, the third motor 81 is started. The third motor 81 drives the bevel gear 82 to rotate, and the bevel gear 82 and the bevel gear ring 83 are in a meshing state, thereby realizing the rotation of the ball 7 relative to the shell 6, and realizing the angle adjustment of the probe 4. When the third motor 81 is started, it also drives the cleaning brush 73 to rotate, that is, the third motor 81 is started back and forth, and the ball 7 drives the cleaning brush 73 to clean the wall surface, and then the cleaning brush 73 is replaced by the probe 4 facing the wall to start accurate detection of cracks.

[0038] This achieves the effect of conveniently detecting cracks at the top of the wall.

[0039] The embodiment of the present application also discloses a method for detecting wall conditions.

[0040] The following steps are involved: S1. Instrument preparation: Calibrate the instrument. The instrument comes with a standard scale plate. Align the instrument with the known width scale on the scale plate and adjust the instrument parameters so that the measured value matches the known width.

[0041] S2, site cleaning; adjust the position of the probe 4, start the third motor 81 with the cleaning brush 73 to clean the wall surface, remove dust and other debris; S3. Preliminary observation: determine the direction and shape of the cracks.

[0042] S4. Measurement operation: Select a starting point and adjust the instrument position so that the probe 4 is perpendicular to the crack surface; perform an initial measurement and read the initial data; then slowly move the probe 4 along the crack direction, perform continuous measurement, and record the data; S5. Measurement of complex crack morphology: For "Y"-shaped cracks, first measure the main crack width according to the method in step S4. When reaching the branch point, measure each branch separately. For "T"-shaped cracks, first measure the transverse crack width to the intersection, focusing on the width at the intersection. Then, move the probe 4 upward or downward from the intersection to measure. S6. End measurement and review data: When the scope reaches the other end of the crack, the measurement ends. Accurately measure and record data at this end point to ensure the entire length of the crack is measured. After completing a complete measurement, quickly review the measurement process to check for any missed data points or obviously unreasonable data. If any data anomalies are found (e.g., the width of a point differs significantly from the previous and next points), return to that point and remeasure to ensure data accuracy.

[0043] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A wall condition detection device, comprising a probe (4) and a tablet for receiving data detected by the probe (4), characterized in that: The invention also includes a base (1), a slide rail (3) and a telescopic assembly (2), wherein the telescopic assembly (2) is located on the base (1); a plurality of universal wheels (11) are installed at the bottom of the base (1); the telescopic assembly (2) includes an end section (21), a sliding section (22), a first motor (23) and a first screw (24); the end section (21) is fixed to the top of the base (1) and is arranged with its opening facing upward; the sliding section (22) is arranged to slide in the end section (21) in a vertical direction; the first motor (23) is fixed to the base (1); the rotating end of the first motor (23) is fixedly connected to the bottom end of the first screw (24); the first screw (24) is arranged vertically and passes through the end section (21) and the sliding section (22); the first screw (24) is threadedly connected to the sliding section (22); and the first screw (24) rotates relative to the end section (21); the slide rail (3) is located at the top of the sliding section (22); and the probe (4) is arranged to slide on the slide rail (3) in a horizontal direction.

2. A wall condition detection device according to claim 1, characterized in that: The sliding joint (22) is provided with an extension joint (5), a traction belt (51) and a fixed pulley (52). The fixed pulley (52) is provided at the top of the sliding joint (22). The opening of the sliding joint (22) faces upward. The extension joint (5) is slidably provided in the sliding joint (22) along the vertical direction. One end of the traction belt (51) is fixedly connected to the inner wall of the end joint (21), and the other end is fixedly connected to the outer wall of the extension joint (5). The middle part of the traction belt (51) is attached to the top of the fixed pulley (52).

3. A wall condition detection device according to claim 2, characterized in that: The cross sections of the end section (21), the sliding section (22) and the extension section (5) are all rectangular and are used to limit the rotation of the sliding section (22) and the extension section (5) in the horizontal direction.

4. The wall condition detection device according to claim 1, characterized in that: The slide rail (3) is provided with a slider (31), a second motor (32) and a second screw (33). The second motor (32) is fixed at one end of the slide rail (3). The second screw (33) is provided along the length direction of the slide rail (3) and one end is fixedly connected to the rotating end of the second motor (32). The second screw (33) passes through the slider (31) and is threadedly connected to the slider (31). The slider (31) is slidably provided on the slide rail (3) and slides along the length direction of the slide rail (3). The probe (4) is located on the slider (31).

5. The wall condition detection device according to claim 4, characterized in that: The slider (31) is provided with a housing (6) and a sphere (7), the outer wall of the housing (6) is fixed to the top of the slider (31), the sphere (7) is rotatably arranged inside the housing (6), and the sphere (7) rotates relative to the housing (6); the probe (4) is inserted into the sphere (7); a steering assembly (8) is provided between the housing (6) and the sphere (7), and the steering assembly (8) is used to adjust the rotation angle of the sphere (7) relative to the housing (6).

6. The wall condition detection device according to claim 5, characterized in that: A sliding groove (71) is provided on the outer wall of the sphere (7), and a protrusion (61) is fixed on the outer shell (6), and the protrusion (61) is located in the sliding groove (71).

7. The wall condition detection device according to claim 6, characterized in that: The steering assembly (8) includes a third motor (81), a bevel gear (82) and a bevel gear ring (83). There is a distance between the outer wall of the sphere (7) and the inner wall of the housing (6). The third motor (81) is fixed inside the sphere (7). One end of the rotating shaft of the third motor (81) protrudes from the sphere (7) and is fixedly connected to the bevel gear (82). The bevel gear ring (83) is semi-circular and is fixed on the inner wall of the housing (6). The bevel gear (82) meshes with the bevel gear ring (83). The fixed position of the bevel gear ring (83) and the opening position of the slide groove (71) cooperate with each other to rotate the sphere (7) relative to the housing (6).

8. The wall condition detection device according to claim 7, characterized in that: A cleaning brush (73) is rotatably provided on the sphere (7), and the cleaning brush (73) is provided adjacent to the probe (4) along the rotation direction of the sphere (7); the third motor (81) is a hollow cup motor, and one end of the rotating shaft of the third motor (81) away from the bevel gear (82) protrudes from the housing (6) of the third motor (81) and is fixedly connected to the cleaning brush (73).

9. The wall condition detection device according to claim 5, characterized in that: The sphere (7) is provided with a slot (72), and the probe (4) is inserted into the slot (72), and the probe (4) and the sphere (7) are magnetically attracted.

10. A wall condition detection method using the wall condition detection device according to claim 1, characterized in that: The following steps are involved: S1. Instrument preparation; S2, site cleaning; S3, preliminary observation; S4. Measurement operation: select a starting point and adjust the instrument position so that the probe (4) is perpendicular to the crack surface; perform an initial measurement and read the initial data; then slowly move the probe (4) along the crack direction, perform continuous measurement and record the data; S5. Measurement of complex crack morphology: For "Y"-shaped cracks, first measure the width of the main crack according to the method in step S4. When the crack reaches the branch point, measure each branch separately. For "T"-shaped cracks, first measure the width of the transverse crack to the intersection, focusing on the width at the intersection. Then, move the probe (4) upward or downward from the intersection to measure. S6. The measurement is completed and the data is reviewed.

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