Non-contact detection method for building exterior wall surface quality

Abstract

The present application relates to a non-contact detection method for the quality of the surface layer of a building exterior wall, comprising the following steps: building a bracket on site, the bracket being arranged on one side of the wall to be detected, the bracket comprising two vertical supports and a transverse support arranged between the two vertical supports; when building the bracket, the transverse support is arranged along the length direction of the wall, a movable block is provided on the transverse support, a detector is provided on the movable block, and a marking component for marking the position of a wall defect is provided on the movable block; when a defect is detected at a certain position of the wall, the position of the wall is marked by the marking component; the present application has the effect of facilitating the marking of defects on the wall.

Description

Technical Field

[0001] The present application relates to the field of wall surface quality detection, and in particular to a non-contact detection method for the quality of a building's exterior wall surface layer. Background Art

[0002] Currently, when constructing cast-in-place walls, it is often necessary to inspect the wall quality, and the inspection directions are mainly wall cracks, concrete hollows, wall flatness, etc.

[0003] A Chinese patent with authorization announcement number CN210982334U discloses a device for detecting quality defects of building exterior walls, which includes a detection shell, a detection component, a sliding rod, a telescopic component and a counterweight sliding seat; the detection component is located on the front end face of the detection shell, the sliding rod is arranged around the detection component, the telescopic component is located at the bottom of the detection shell, the counterweight sliding seat is located at the bottom of the telescopic component, the detection shell is provided with a sliding cavity corresponding to the sliding rod, the sliding rod is located in a long cylindrical cavity structure, the sliding rod includes a telescopic spring, a connecting rod and a rolling ball, the telescopic spring is fixedly connected to the bottom of the sliding cavity, and the connecting rod is located in the sliding cavity.

[0004] Regarding the above-mentioned related technologies, the inventor believes that the related technologies use ultrasonic waves to detect the quality of the wall, and the principle of ultrasonic detection is to measure acoustic parameters such as the propagation speed of ultrasonic waves in the wall, the first wave amplitude and the main frequency of the received signal, and to determine the defects in the wall concrete based on these parameters and their relative changes. However, since the wall area is large, there may be many defects. Therefore, after the defects are detected by the detection device, the defect position needs to be manually recorded. Some defects are located at a high position, and the operator can only mark them by visual inspection, which is not very intuitive, so errors are prone to occur when searching for defects and handling them later. Summary of the Invention

[0005] In order to facilitate marking defects on walls, the present application provides a non-contact detection method for the quality of building exterior wall surface layers.

[0006] This application provides a non-contact detection method for the quality of building exterior wall surface layer, which adopts the following technical solution:

[0007] A non-contact detection method for the quality of a building exterior wall surface layer comprises the following steps:

[0008] Step 1: Build a bracket on site. The bracket is set on one side of the wall to be inspected. The bracket includes two vertical supports and a transverse support arranged between the two vertical supports. When building the bracket, the transverse support is arranged along the length direction of the wall. A moving block is provided on the transverse support. A detector is provided on the moving block. A driving component 1 for driving the transverse support to move in the vertical direction is provided on the vertical support. A driving component 2 for driving the moving block to move along the length direction of the wall is provided on the transverse support. A marking component for marking the location of wall defects is provided on the moving block.

[0009] Step 2: The moving block is driven to move by the second driving component, and the detector is turned on to detect defects in the length direction of the wall. When a defect is detected at a certain position of the wall, the marking component is used to mark the position of the wall;

[0010] Step 3: After all defects in the length direction at a certain height position of the wall are detected, the horizontal support is driven vertically by the driving component 1 to adjust the height of the detector to detect defects at the wall at that height position. When a defect is detected at a certain position of the wall, the marking component is used to mark the position of the wall;

[0011] Step 4: After the wall defect detection is completed, remove the bracket.

[0012] By adopting the above technical solution, when in use, the driving component 1 drives the horizontal support to move vertically, so that defects in the vertical direction of the wall can be detected; the driving component 2 drives the moving block to move along the length direction of the wall, so that defects in the length direction of the wall can be detected, thereby achieving a more comprehensive detection of the wall; and the marking component can mark the detected defect position, eliminating the need for manual recording, making it easier for operators to find and handle defects later.

[0013] Optionally, the marking assembly includes a cylinder arranged on the moving block and a paint bottle arranged on the moving block with the paint spray port facing the wall. The cylinder piston rod is fixedly connected to a pressing block, and the cylinder drives the pressing block to move to press the paint bottle so that the paint bottle sprays paint.

[0014] By adopting the above technical solution, when marking the defect position, the cylinder is turned on to drive the pressing block to move, and the pressing block moves to push the paint spray bottle to spray paint, thereby marking the defect position of the wall.

[0015] Optionally, the driving assembly includes a winding roller rotatably connected to the vertical support and a motor for driving the winding roller to rotate, a pull rope is wound around and fixedly connected to the winding roller, and the other end of the pull rope is fixedly connected to the horizontal support.

[0016] By adopting the above technical solution, when driving the lateral support to move upward, the motor 1 is turned on to drive the winding roller 1 to rotate, so that the pull rope 1 can be wound up, driving the lateral support to move upward. When the lateral support needs to move downward, the motor is turned on to control the winding roller 1 to unwind, and the lateral support then drops due to its own weight. The drive component 1 has a simple structure and is easy to operate.

[0017] Optionally, the second driving component includes a second winding roller rotatably connected to one end of a transverse support and a second motor for driving the second winding roller to rotate, the end of the transverse support away from the second winding roller is fixedly connected to a fixed pulley, the second winding roller is fixedly connected to a second pull rope, the other end of the second pull rope passes around the fixed pulley and is fixedly connected to the second winding roller, and the movable block is fixed on the second pull rope.

[0018] By adopting the above technical solution, when driving the movable block to move horizontally, the second motor is turned on to drive the winding roller to rotate, thereby driving the second pull rope to move, and the movable block is fixed on the second pull rope, thereby driving the movable block to move. The second driving component has a simple structure and is easy to operate.

[0019] Optionally, the lower end of the vertical support is fixedly connected to a support plate for abutting the ground, the length direction of the support plate is arranged in the horizontal direction and is perpendicular to the length direction of the horizontal support, and the support plate is slidably connected to an abutment plate for abutting the wall surface along its length direction. The support plate is provided with a driving component three for driving the abutment plate to slide and position.

[0020] By adopting the above technical solution, the support plate can enhance the stability of the bracket and prevent the bracket from tipping over, and the abutment plate is driven to move by the driving component three until the abutment plate abuts against the wall surface, thereby ensuring that the lateral support is parallel to the wall surface.

[0021] Optionally, the driving component three includes a screw threadedly connected to the support plate and a handle for driving the screw to rotate, and the screw is rotatably connected to the abutment plate.

[0022] By adopting the above technical solution, when driving the abutment plate to move, the handle is rotated to drive the screw to rotate, thereby driving the abutment plate to move. The screw in the driving component has a certain limiting function, which can limit the abutment plate to a certain position to a certain extent.

[0023] Optionally, the vertical support includes a first section, a tail section and multiple intermediate sections, the first section and one end of the intermediate section are fixedly connected to a plug rod, and the other end of the intermediate section and one end of the tail section are provided with a slot for inserting the plug rod.

[0024] By adopting the above technical solution, the number of intermediate sections can be adjusted, thereby adjusting the length of the vertical support to adapt to walls of different heights.

[0025] Optionally, both ends of the transverse support are hinged to the two vertical supports respectively, and the transverse support includes a plurality of unit segments hinged end to end in sequence.

[0026] By adopting the above technical solution, after the inspection is completed, the horizontal support can be folded and the length of the vertical support can be reduced, thereby reducing the space occupied by the device and facilitating the transportation or transfer of the device.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. This application can mark the location of detected defects, eliminating the need for manual recording and making it easier for operators to find and handle defects later;

[0029] 2. When in use, the first drive assembly drives the horizontal support to move vertically, thereby detecting defects in the vertical direction of the wall. The second drive assembly drives the moving block to move along the length of the wall, thereby detecting defects in the length of the wall. This allows for a more comprehensive inspection of the wall.

[0030] 3. This application sets the horizontal support as multiple unit sections, and the vertical support as the first section, the last section and multiple intermediate sections. After the inspection is completed, the horizontal support can be folded and the length of the vertical support can be reduced. This can reduce the space occupied by the device and facilitate the transportation or transfer of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of a non-contact detection method for the quality of a building exterior wall surface layer in an embodiment of the present application;

[0032] Figure 2 yes Figure 1 Schematic diagram of the splicing structure of the middle vertical support;

[0033] Figure 3 yes Figure 1 Schematic diagram of the coordination structure of the moving block and unit segment.

[0034] Explanation of the accompanying symbols: 1. Vertical support; 2. Horizontal support; 3. First section; 4. Tail section; 5. Middle section; 6. Insert rod; 7. Slot; 8. Card sleeve; 9. Abutment plate; 10. Slide groove; 11. Scale; 12. Screw; 13. Handle; 14. Sleeve; 15. Unit section; 16. Winding roller one; 17. Motor one; 18. Pull rope one; 19. Moving block; 20. Detector; 21. Card block; 22. Moving groove; 23. Winding roller two; 24. Motor two; 25. Pull rope two; 26. Cylinder; 27. Press block; 28. Groove; 29. ​​Spray bottle; 30. Ring; 31. Delivery pipe; 32. Spray head; 33. Support plate; 34. Support rod; 35. Fixed pulley. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-3 This application is described in further detail.

[0036] The present application discloses a non-contact detection method for the quality of the exterior wall surface of a building. Figure 1 and Figure 2 , the detection method comprises the following steps:

[0037] Step 1. Build the bracket on site. The bracket is set on the side of the wall to be tested. The bracket includes two vertical supports 1 and a horizontal support 2 set between the two vertical supports 1. The vertical support 1 includes a first section 3, a tail section 4 and multiple middle sections 5. One end face of the first section 3 and the middle section 5 are fixedly connected with a plug rod 6. The plug rod 6 is square and has a certain elasticity. The other end face of the middle section 5 and one end face of the tail section 4 are provided with a slot 7 for inserting the plug rod 6. When the plug rod 6 is inserted into the slot 7, the plug rod 6 is deformed.

[0038] A support plate 33 is hinged at the lower end of the tail section 4. The length direction of the support plate 33 is set along the thickness direction of the wall, and the rotation axis of the support plate 33 is set along the length direction of the wall. When the support plate 33 is rotated to be perpendicular to the tail section 4, the bottom surface of the support plate 33 is used to abut the bottom surface. A clamping sleeve 8 for clamping the support plate 33 is fixedly connected to the tail section 4. When the clamping sleeve 8 clamps the support plate 33, the support plate 33 is set in the vertical direction and abuts against the side wall of the tail section 4.

[0039] The bottom surface of the support plate 33 is slidably connected to an abutment plate 9 along its length direction. The abutment plate 9 slides to abut the wall surface. A sliding groove 10 for the abutment plate 9 to slide is provided on the bottom surface of the support plate 33. The abutment plate 9 is inserted into the sliding groove 10, and the abutment plate 9 abuts against the bottom surface of the support plate 33 flush. The upper surface of the abutment plate 9 is marked with a scale 11.

[0040] The support plate 33 is provided with a driving component three for driving the abutment plate 9 to slide. The driving component three includes a screw 12 and a handle 13. The length direction of the screw 12 is arranged along the length direction of the support plate 33. The screw 12 is threadedly connected to the support plate 33 and part of the screw 12 is located in the slide groove 10. The screw 12 is rotatably connected to the end of the abutment plate 9 away from the wall. The rotation axis of the screw 12 is arranged along the length direction of the support plate 33. The end of the screw 12 outside the slide groove 10 is coaxially fixedly connected to the handle 13.

[0041] A sliding sleeve 14 is slidably connected to the vertical support 1, and the two ends of the transverse support 2 are hinged on the two sliding sleeves 14 respectively. The length direction of the transverse support 2 is arranged along the length direction of the wall. The transverse support 2 includes multiple unit sections 15 that are hinged end to end in sequence. The upper end of the first section 3 is provided with a driving component 1 for driving the sliding sleeve 14 to move vertically.

[0042] The driving component 1 includes a winding roller 16 and a motor 17. The winding roller 16 is rotatably connected to the upper end of the first section 3. The length direction and the rotation axis of the winding roller 16 are both arranged in the horizontal direction. The output shaft of the motor 17 is coaxially fixedly connected to the winding roller 16. The motor 17 is fixedly connected to the upper end of the first section 3 by screws. A pull rope 18 is wound and fixedly connected to the winding roller 16, and the other end of the pull rope 18 is fixedly connected to the sliding sleeve 14.

[0043] Reference Figure 1 and Figure 3 A moving block 19 is slidably connected to the transverse support 2 along its length direction, a detector 20 is fixedly connected to the moving block 19, a clamping block 21 is fixedly connected to the moving block 19, and moving grooves 22 for the clamping block 21 to be clamped in are provided on both side walls in the length direction of the transverse support 2. The moving grooves 22 are arranged along the length direction of the transverse support 2, and a driving component 2 for driving the moving block 19 to slide is provided on the sliding sleeve 14.

[0044] Drive component 2 includes a winding roller 23 and a motor 24. The winding roller 23 is rotatably connected to one of the sleeves 14. The rotation axis and length direction of the winding roller 23 are both set along the width direction of the wall. The output shaft of the motor 24 is coaxially fixedly connected to one end of the winding roller 23. The motor 24 is fixedly connected to the sleeve 14 by screws. A fixed pulley 35 is fixedly connected to the other sleeve 14. A pull rope 25 is fixedly connected to the winding roller 23. The other end of the pull rope 25 passes around the fixed pulley 35 and is fixedly connected to the winding roller 23. The moving block 19 is fixed on the pull rope 25.

[0045] The moving block 19 is provided with a marking component for marking the position of wall defects, and the marking component includes a cylinder 26 and a paint spray bottle 29. A groove 28 is provided on the upper surface of the moving block 19 for vertical insertion of the paint spray bottle 29, and the paint spray bottle 29 is inserted into the groove 28. A support rod 34 is fixedly connected to the moving block 19, and the cylinder 26 is fixedly connected to the support rod 34 by screws. The cylinder 26 is arranged in a vertical direction, and the piston rod of the cylinder 26 is fixedly connected to a pressing block 27. The pressing block 27 is located directly above the paint spray bottle 29. The nozzle of the paint spray bottle 29 is connected and fixedly connected to a delivery pipe 31. A circular ring 30 is fixedly connected to the moving block 19, and the circle is hollow. The circular ring 30 faces the end face toward the wall surface, and the end of the circular ring 30 away from the moving block 19 is connected and fixedly connected to multiple nozzles 32, and the detector 20 passes through the middle of the circular ring 30.

[0046] During the actual use of the cylinder 26, a comparison module is provided on the moving block 19. When the operating ultrasonic wave detects information of the wall, the information is transmitted to the comparison module, and the comparison module compares the information with normal information within a certain range. When the information exceeds the range of normal information, the comparison module transmits the information to the cylinder 26 to control the opening of the cylinder 26.

[0047] When building the bracket, select the appropriate number of middle sections 5 according to the wall height, then splice the first section 3, the middle section 5 and the tail section 4 in sequence. After splicing, select the appropriate number of unit sections 15 to be straightened according to the wall length to form a horizontal support 2.

[0048] Step 2: Adjust the distance between the vertical support 1 and the wall surface, and then rotate the support plate 33 until the support plate 33 abuts against the ground.

[0049] Step 3: Turn the handle 13 to drive the screw 12 to rotate, thereby driving the abutment plate 9 to slide until the abutment plate 9 abuts against the wall surface, and observe the scales 11 of the two abutment plates 9 to adjust the lengths of the two abutment plates 9 extending out of the support plate 33 to be consistent to ensure that the horizontal support 2 is parallel to the wall surface.

[0050] Step 4: Position the support plate 33 on the ground using bolts.

[0051] Step 5: The moving block 19 is driven to move by the second driving component, and the detector 20 is turned on to detect defects in the length direction of the wall. When a defect is detected at a certain position of the wall, the marking component is used to mark the position of the wall;

[0052] Step 6: After all defects in the length direction at a certain height position of the wall are detected, the horizontal support 2 is driven vertically by the driving component 1 to adjust the height of the detector 20 to detect defects at the wall height position. When a defect is detected at a certain position of the wall, the marking component is used to mark the position of the wall;

[0053] During the actual use of the marking component, a comparison module is provided on the moving block 19. When the ultrasonic wave is operated to detect the information of the wall, the information is transmitted to the comparison module, and the comparison module compares the information with the normal information within a certain range. When the information exceeds the range of the normal information, the comparison module transmits the information to the cylinder 26 to control the cylinder 26 to open.

[0054] Step 7. After the wall defect detection is completed, move the sliding sleeve 14 to the first section 3, move the moving block 19 to one end of the horizontal support 2, then remove the bolts of the positioning support plate 33, and then move the two vertical supports 1 closer to each other until most of the unit sections 15 are folded together, then remove the first section 3 and multiple intermediate sections 5, and store the abutment plate 9 in the slide groove 10, then rotate the support plate 33 and clamp the support plate 33 in the sleeve.

[0055] The implementation principle of a non-contact detection method for the quality of a building's exterior wall surface layer in an embodiment of the present application is as follows: driving component 1 drives the horizontal support 2 to move vertically, so as to detect defects in the vertical direction of the wall; driving component 2 drives the moving block 19 to move along the length direction of the wall, so as to detect defects in the length direction of the wall; when the detector 20 detects a defect on the wall, the cylinder 26 is turned on, driving the pressing block 27 to move downward, pressing the paint bottle 29, so that the paint in the paint bottle 29 is sprayed on the wall through the nozzle 32, forming a defect mark.

[0056] The above 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 non-contact detection method for the quality of a building's exterior wall surface, characterized by: The steps include: Step 1, build a bracket on site, the bracket is set on the side of the wall to be detected, the bracket includes two vertical supports (1) and a horizontal support (2) set between the two vertical supports (1), when building the bracket, the horizontal support (2) is set along the length direction of the wall, the horizontal support (2) is provided with a moving block (19), the moving block (19) is provided with a detector (20), the vertical support (1) is provided with a driving component 1 for driving the horizontal support (2) to move in the vertical direction, the horizontal support (2) is provided with a driving component 2 for driving the moving block (19) to move along the length direction of the wall, and the moving block (19) is provided with a marking component for marking the position of the wall defect; Step 2: The moving block (19) is driven to move by the second driving component, and the defects in the length direction of the wall are detected by turning on the detector (20). When a defect is detected at a certain position of the wall, the position of the wall is marked by the marking component; Step 3: After all defects in the length direction at a certain height position of the wall are detected, the horizontal support (2) is driven vertically by the driving component 1, and the height of the detector (20) is adjusted to detect defects at the height position of the wall. When a defect is detected at a certain position of the wall, the position of the wall is marked by the marking component; Step 4: After the wall defect detection is completed, remove the bracket; The vertical support (1) comprises a first section (3), a tail section (4) and a plurality of intermediate sections (5); one end of each of the first section (3) and the intermediate section (5) is fixedly connected to a plug rod (6); the other end of each of the intermediate section (5) and one end of each of the tail section (4) are provided with a slot (7) for inserting the plug rod (6); a sliding sleeve (14) is slidably sleeved on the vertical support (1); the two ends of the horizontal support (2) are respectively hinged on the two sliding sleeves (14); a driving component is used to drive the sliding sleeve (14) to move vertically; the horizontal support (2) comprises a plurality of unit sections (15) hinged in sequence at the head and tail; a clamping block (21) is fixedly connected to the moving block (19); a moving groove (22) for the clamping block (21) to be clamped is provided on both side walls in the longitudinal direction of the horizontal support (2); and the moving groove (22) is arranged along the longitudinal direction of the horizontal support (2).

2. The non-contact detection method for the quality of a building exterior wall surface according to claim 1, characterized in that: The marking assembly comprises a cylinder (26) arranged on the moving block (19) and a paint bottle (29) arranged on the moving block (19) and with a paint spraying port facing the wall. The piston rod of the cylinder (26) is fixedly connected to a pressing block (27). The cylinder (26) drives the pressing block (27) to move to press the paint bottle (29) so that the paint bottle (29) sprays paint.

3. The non-contact detection method for the quality of a building exterior wall surface according to claim 1, characterized in that: The driving assembly includes a winding roller (16) rotatably connected to the vertical support (1) and a motor (17) for driving the winding roller (16) to rotate. A pull rope (18) is wound around and fixedly connected to the winding roller (16), and the other end of the pull rope (18) is fixedly connected to the horizontal support (2).

4. The non-contact detection method for the quality of a building exterior wall surface according to claim 1, characterized in that: The driving assembly 2 includes a winding roller 2 (23) rotatably connected to one end of the transverse support (2) and a motor 2 (24) for driving the winding roller 2 (23) to rotate. The end of the transverse support (2) away from the winding roller 2 (23) is fixedly connected to a fixed pulley (35). The winding roller 2 (23) is fixedly connected to a pull rope 2 (25). The other end of the pull rope 2 (25) passes around the fixed pulley (35) and is fixedly connected to the winding roller 2 (23). The moving block (19) is fixed on the pull rope 2 (25).

5. The non-contact detection method for the quality of a building exterior wall surface according to claim 1, characterized in that: The lower end of the vertical support (1) is fixedly connected to a support plate (33) for contacting the ground, the length direction of the support plate (33) is arranged in a horizontal direction and is perpendicular to the length direction of the transverse support (2), and the support plate (33) is slidably connected to an abutment plate (9) for contacting the wall surface along its length direction, and a driving component three for driving the abutment plate (9) to slide and position is provided on the support plate (33).

6. The non-contact detection method for the quality of a building exterior wall surface according to claim 5, characterized in that: The driving assembly three comprises a screw rod (12) threadedly connected to the support plate (33) and a handle (13) for driving the screw rod (12) to rotate, and the screw rod (12) and the abutment plate (9) are rotatably connected.

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