A flatness detection device for building outer wall construction and a construction process

Abstract

The application discloses a flatness detection device for building outer wall construction and a construction process, and belongs to the technical field of building decoration. The flatness detection device for building outer wall construction comprises two installation rails which are correspondingly installed on the surface of a building outer wall, the surfaces of the two installation rails are jointly and slidably connected with a laser measuring instrument, the inside of the laser measuring instrument is provided with a movable movable plate, the bottom surface of the movable plate is fixedly installed with a plurality of fixing frames, and the bottom surface of any one fixing frame is fixedly installed with a sliding frame. Compared with a traditional part-fixed laser measuring device, when the laser measuring instrument encounters a large protruding block, the laser measuring instrument can timely avoid collision, normal working of the laser measuring instrument is ensured for wall surface flatness detection, the accuracy of detection values is ensured, the detection quality of the laser measuring instrument on wall surface flatness is improved, and the detection efficiency of the laser measuring instrument on wall surface flatness is also improved.

Description

Technical Field

[0001] This invention relates to the field of building decoration technology, and more specifically, to a flatness testing device and construction process for building exterior wall construction. Background Technology

[0002] The flatness testing device for building exterior wall construction is a key tool to ensure building quality. Its core testing functions include accurately measuring wall surface unevenness deviation, quantifying surface flatness data, and identifying local protrusions and depressions.

[0003] Chinese patent application CN202210498682.8 discloses a real-time detection device for the flatness of building walls, including a horizontal telescopic seat, a leveling mechanism, a lifting adjustment mechanism, a horizontal adjustment mechanism, a sliding body, and an intelligent distance measuring instrument; the lifting adjustment mechanism includes a vertical rail, a lifting driver, and a lifting block; the horizontal adjustment mechanism includes a first horizontal driver, a second horizontal driver, a first horizontal guide rail, and a second horizontal guide rail, the sliding body slides with the first horizontal guide rail or the second horizontal guide rail, or simultaneously with the first horizontal guide rail and the second horizontal guide rail, and the sliding body is driven connected to the first horizontal driver or the second horizontal driver, or simultaneously with the first horizontal driver and the second horizontal driver, and the intelligent distance measuring instrument is fixed on the sliding body.

[0004] The above technical solution can detect the flatness of the wall surface in real time and guide construction to improve construction quality. It can also perform efficient and accurate detection of the constructed wall surface. However, after the detection device is set up, the distance between the intelligent rangefinder and the wall surface is fixed during the detection of the wall surface flatness. This can detect minor protrusions and depressions, but when detecting larger protrusions, the fixed distance between the intelligent rangefinder and the wall surface causes the higher protrusions to collide with the measuring head of the intelligent rangefinder, causing the measuring head of the laser measuring instrument to shift. In severe cases, this can even damage the laser measuring instrument, resulting in inaccurate wall surface flatness detection values. This not only affects the detection quality of the laser measuring instrument but also its detection efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a flatness testing device for building exterior wall construction, in order to solve the problems mentioned in the background art above:

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A flatness testing device for building exterior wall construction includes two mounting rails correspondingly installed on the exterior wall surface. A laser measuring instrument is slidably connected to the surfaces of the two mounting rails. The laser measuring instrument has a movable plate inside. Multiple sets of fixed frames are fixedly installed on the bottom surface of the movable plate. A slide is fixedly installed on the bottom surface of each fixed frame. A matching slider is slidably connected inside each slide. A vertical plate is fixedly installed on the inner side of each slider. A rotating wheel is rotatably connected to the bottom inner side of each vertical plate. A first spring is elastically connected between the slider and the slide. A movable block is positioned above the rotating wheel, and the bottom surface of the movable block is fixedly installed with… The device includes a cylinder with a laser measuring device at its bottom for detecting the flatness of the building's exterior walls. A frame plate is fixedly installed on the inner top surface of each vertical plate, and a top column is fixedly connected to the surface of each frame plate. Connecting plates are fixedly installed on both sides of the movable block, and a top seat corresponding to the position of the top column is fixedly installed on the bottom surface of each connecting plate. A laser rangefinder is fixedly installed on the bottom surface of each connecting plate, located on one side of the top seat. Each set of fixed frames consists of two units; one fixed frame has a scale for measuring the movement of the movable block fixedly installed on its inner surface, and the other fixed frame has a position sensor fixedly installed on its inner surface.

[0008] Preferably, one end of the first spring is fixedly connected to the bottom surface of the slider, and the other end of the first spring is fixedly connected to the inner bottom surface of the slide. Each of the fixed frames has a sliding groove on its inner side. A matching sliding plate is slidably connected inside the sliding groove. The bottom surface of the sliding plate is fixedly connected to the top surface of the movable block. The movable block is slidably connected to the fixed frame through the matching of the sliding plate and the sliding groove.

[0009] Preferably, a second spring is elastically connected between the slide plate and the slide groove. One end of the second spring is fixedly connected to the surface of the slide plate, and the other end of the second spring is fixedly connected to the inner top surface of the slide groove.

[0010] Preferably, the laser measuring instrument has two vertical frames fixedly installed on its inner top surface. The inner sides of the two vertical frames are provided with slots, and L-shaped plates that match them are slidably connected inside the two slots. The bottom surfaces of the two L-shaped plates are fixedly connected to the surface of the movable plate. A ring is provided on the outside of the cylinder, and the ring is fixedly connected to the two frame plates.

[0011] Preferably, a third spring is elastically connected between the L-shaped plate and the slot, one end of the third spring is fixedly connected to the surface of the L-shaped plate, and the other end of the third spring is fixedly connected to the inner top surface of the slot.

[0012] Preferably, a horizontal frame is fixedly connected to the bottom surface of each of the two vertical frames, and rollers are rotatably connected to both ends of each of the two horizontal frames. A slide rail matching the rollers is provided on the side surface of each of the two mounting rails. The horizontal frame is slidably connected to the mounting rail by matching the rollers and the slide rails. A suction cup is fixedly installed on the bottom surface of any one of the mounting rails.

[0013] Preferably, two mounting brackets are fixedly installed on both sides of the laser measuring instrument, and a driving device is fixedly installed on the surface of the mounting bracket. The output end of the driving device is fixedly connected to a roller. Protective shells for protecting the driving device are fixedly installed on both sides of the laser measuring instrument. Two handles are fixedly installed on the top surface of the laser measuring instrument. A controller is fixedly installed on the surface of the laser measuring instrument. The controller is electrically connected to the driving device through wires, the controller is electrically connected to the laser measuring instrument through wires, the controller is electrically connected to the laser rangefinder through wires, and the controller is electrically connected to the position sensor through wires.

[0014] Preferably, a through-type threaded rod is threadedly connected to the middle of the top surface of the laser measuring instrument, a rotating seat is provided below the threaded rod, the bottom surface of the rotating seat is fixedly connected to the surface of the movable plate, a matching rotating block is rotatably connected inside the rotating seat, the rotating block is fixedly connected to the bottom surface of the threaded rod, and a turntable is fixedly installed on the top surface of the threaded rod.

[0015] Preferably, the surface of the cylinder has two corresponding slots, and the inside of each slot is rotatably connected to a buckle. A fixed plate is fixedly installed on the top surface of the laser measuring device. The surface of the fixed plate is provided with a guide slope. The surface of the fixed plate has two corresponding slots that engage with the buckles. A rotating plate is fixedly installed on the surface of each buckle. A spring shaft is provided between the buckle and the slot, and the buckle is rotatably connected to the slot through the spring shaft.

[0016] A construction process for testing the flatness of building exterior walls includes the following steps:

[0017] S1: After the laser measuring instrument is set up, the turntable rotates, causing the threaded rod to rotate. The threaded rod screws into the laser measuring instrument, causing the rotating seat to move, which in turn moves the movable plate inside the slot. The movable plate moves, which in turn moves multiple sets of fixed frames and slides towards the wall. The slides move, which in turn moves the slider, vertical plate, and rotating wheel towards the wall. After being squeezed, the rotating wheel moves, which in turn moves the vertical plate. The vertical plate moves, which in turn moves the slider inside the slide, which stretches the first spring. The vertical plate also moves the frame plate and top column towards the top seat. In the initial state, the top column and top seat are not in contact. The fixed frame moves towards the wall, which in turn moves the movable block and the laser measuring instrument.

[0018] S2: The laser measuring device detects the initial distance to the wall, using L... a This indicates that the laser rangefinder detects the initial distance between one end of the top column and the top base, denoted by L. b This indicates that when the distance between the laser measuring device and the wall is the same as the distance between one end of the top column and the top base, then L... a =L b ;

[0019] S3: When a depression appears on the wall, as the rotating wheel passes over the depression, it moves towards the depression under the action of the first spring. At this time, the laser measuring device directly detects the distance from itself to the depression. The distance from the laser measuring device to the depression is then subtracted from L. a To determine the depth of the depression, when the protrusion on the wall is small, the rotating wheel passes the protrusion. At this point, the wheel is compressed by the protrusion, and its movement causes the slider to slide inside the carriage, stretching the first spring. Simultaneously, the laser measuring device directly detects the distance from itself to the protrusion, using L... a Subtract the distance from the laser measuring device to the protrusion to obtain the protrusion height of the smaller protrusion;

[0020] S4: When a large protrusion appears on the wall, the rotating wheel is squeezed by the protrusion. After the end of the top column contacts the top seat, the protrusion continues to squeeze the rotating wheel. At this time, the vertical plate moves, causing the top column to move and squeeze the top seat. The top seat moves, causing the connecting plate to move, which in turn causes the movable block to move, causing the sliding plate to move in the slide groove and squeeze the second spring. At this time, the position sensor records the distance the sliding plate slides in the slide groove. The distance the sliding plate slides in the slide groove is added to L. b The obtained value is the protrusion height of the larger protrusion.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] (1) When the flatness testing device for the exterior wall construction of this building is in use, after the laser measuring instrument is set up, the drive device works to make the rollers roll inside the slide rail and move the cross frame, so that the laser measuring instrument slides on the two mounting rail surfaces. During the movement of the laser measuring instrument, the rotating wheel rolls on the wall surface, so that the laser measuring instrument can detect the flatness of the wall surface. Moreover, when there are large protrusions on the wall surface, the laser measuring instrument can effectively protect the laser measuring instrument and avoid collisions during the laser measuring instrument detection process. Compared with the traditional partially fixed laser measuring instrument, this laser measuring instrument can promptly avoid collisions when encountering large protrusions, ensuring that the laser measuring instrument works normally to detect the flatness of the wall surface, while ensuring the accuracy of the detection values, improving the detection quality of the laser measuring instrument for the flatness of the wall surface, and also improving the detection efficiency of the laser measuring instrument for the flatness of the wall surface.

[0023] (2) When using the flatness testing device for the exterior wall construction of this building, the mounting rail for the laser measuring instrument can be made of multiple mounting rails connected together according to the length of the wall to be tested, so that the laser measuring instrument can test the wall at different distances, increasing the practicality of the laser measuring instrument. In addition, the laser measuring instrument and the mounting rail are detachable, making it convenient to store and transfer the mounting rail and the laser measuring instrument for measurement.

[0024] (3) When using the flatness testing device for the exterior wall construction of this building, first remove the laser measuring instrument from the installation rail, then manually squeeze the rotating plate. The rotating plate rotates and the buckle rotates and disengages from the slot. Then remove the laser measuring instrument from the inside of the cylinder. When installing the laser measuring instrument, insert the laser measuring instrument into the inside of the cylinder. At this time, the guide slope at the top of the laser measuring instrument squeezes the bottom slope of the buckle. The buckle rotates. During the process of inserting the laser measuring instrument into the inside of the cylinder, when the slot and the buckle are aligned, the buckle resets under the action of the spring shaft and engages with the slot, thus completing the installation of the laser measuring instrument. The laser measuring instrument is designed to be detachable. When the laser measuring instrument is transported, it is prevented from being damaged by collision with external objects. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the mounting rail and laser measuring instrument position structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the crossbeam and roller positions of the present invention;

[0028] Figure 4 This is a schematic diagram of the position and structure of the laser measuring instrument and controller of the present invention;

[0029] Figure 5 This is a schematic diagram of the position structure of the vertical and horizontal frames of the present invention;

[0030] Figure 6 This is a schematic diagram of the positional structure of the movable plate and the L-shaped plate of the present invention;

[0031] Figure 7 This is a schematic diagram showing the position and structure of the movable plate and the fixing frame of the present invention;

[0032] Figure 8 This is a schematic diagram of the position and structure of the fixing frame and the carriage of the present invention;

[0033] Figure 9 This is a schematic diagram of the position structure of the slider and carriage of the present invention;

[0034] Figure 10 This is a schematic diagram showing the position and structure of the movable block and connecting plate of the present invention;

[0035] Figure 11 This is a schematic diagram showing the position and structure of the connecting plate and the laser rangefinder of the present invention;

[0036] Figure 12 This is a schematic diagram of the positional structure of the movable block and the cylinder of the present invention;

[0037] Figure 13 For the present invention Figure 12 Enlarged view of the structure of part A in the middle.

[0038] Explanation of the numbers in the diagram: 1. Mounting rail; 2. Laser measuring instrument; 3. Movable plate; 4. Fixed frame; 5. Slide carriage; 6. Slider; 7. Vertical plate; 8. Rotary wheel; 9. First spring; 10. Movable block; 11. Cylinder; 12. Laser measuring instrument; 13. Frame plate; 14. Top column; 15. Connecting plate; 16. Top seat; 17. Laser rangefinder; 18. Slide groove; 19. Slide plate; 20. Position sensor; 21. Scale; 22. Second spring; 23. Vertical frame 24. Slot; 25. L-shaped plate; 26. Third spring; 27. Crossbar; 28. Roller; 29. ​​Slide rail; 30. Suction cup; 31. Mounting bracket; 32. Drive unit; 33. Protective shell; 34. Threaded rod; 35. Rotating block; 36. Rotary seat; 37. Turntable; 38. Handle; 39. Controller; 40. Ring; 41. Groove; 42. Spring shaft; 43. Buckle; 44. Fixing plate; 45. Guide slope; 46. Slot; 47. Rotating plate. Detailed Implementation

[0039] Example 1: Please refer to Figure 1 - Figure 13A flatness testing device for building exterior wall construction includes two mounting rails 1 installed on the exterior wall surface. The mounting rails 1 are designed to be spliced, and are spliced ​​according to the length of the wall to be tested. A laser measuring instrument 2 is slidably connected to the surfaces of the two mounting rails 1. The laser measuring instrument 2 tests the flatness of the building exterior wall surface. The laser measuring instrument 2 has a movable plate 3 inside. Multiple sets of fixed frames 4 are fixedly installed on the bottom surface of the movable plate 3. A slide 5 is fixedly installed on the bottom surface of any fixed frame 4. A matching slider 6 is slidably connected inside any slide 5. A vertical plate 7 is fixedly installed on the inner side of any slider 6. The bottom inner side of any vertical plate 7 is rotatably connected to... A rotating wheel 8 rolls on the wall, making the laser measuring instrument 2 more efficient in detecting the flatness of the wall. A first spring 9 elastically connects the slider 6 and the carriage 5. A movable block 10 is set above the rotating wheel 8, and a cylinder 11 is fixedly installed on the bottom surface of the movable block 10. A laser measuring instrument 12 for detecting the flatness of the building's exterior wall is set at the bottom of the cylinder 11. The laser measuring instrument 12 is a conventional laser measuring instrument in the prior art. A frame plate 13 is fixedly installed on the inner side of the top of any vertical plate 7, and a top column 14 is fixedly connected to the surface of any frame plate 13. Connecting plates 15 are fixedly installed on both sides of the movable block 10, and a top seat 1 corresponding to the position of the top column 14 is fixedly installed on the bottom surface of any connecting plate 15. 6. A laser rangefinder 17 is fixedly installed on the bottom surface of any connecting plate 15. The laser rangefinder 17 is used to detect the distance from the top seat 16 to the end of the top column 14. The laser rangefinder 17 is located on one side of the top seat 16. There are two fixing frames 4 in each group. One fixing frame 4 has a scale 21 fixedly installed on its inner side for measuring the movement of the movable block 10. The scale 21 is a conventional scale 21 in the prior art. The other fixing frame 4 has a position sensor 20 fixedly installed on its inner side. The position sensor 20 is a conventional position sensor 20 in the prior art. After the laser measuring instrument 2 is set up, the drive device 32 drives the roller 28 to roll inside the slide rail 29, which in turn moves the cross frame 27, thereby making the laser measuring instrument 2 move. The two mounting rails 1 slide on the surface, and the laser measuring instrument 2 moves along the wall with the rotating wheel 8, thus enabling the laser measuring instrument 12 to detect the flatness of the wall. Moreover, when there are large protrusions on the wall, the laser measuring instrument 2 can effectively protect the laser measuring instrument 12 and avoid collisions during the detection process. Compared with the traditional partially fixed laser measuring instrument 12, this laser measuring instrument 2 can promptly avoid collisions when encountering large protrusions, ensuring that the laser measuring instrument 12 can work normally to detect the flatness of the wall. At the same time, it ensures the accuracy of the detection values, improves the detection quality of the laser measuring instrument 2 for the flatness of the wall, and also improves the detection efficiency of the laser measuring instrument 2 for the flatness of the wall.The mounting rail 1 for the laser measuring instrument 2 can be formed by connecting multiple mounting rails 1 according to the length of the wall to be measured. This allows the laser measuring instrument 2 to measure walls at different distances, increasing its practicality. Furthermore, the laser measuring instrument 2 and the mounting rail 1 are detachable, making both easy to store and transport for measurement.

[0040] Please see Figure 8 - Figure 12 One end of the first spring 9 is fixedly connected to the bottom surface of the slider 6, and the other end of the first spring 9 is fixedly connected to the inner bottom surface of the slide 5. Each fixed frame 4 has a groove 18 on its inner side. A matching slide plate 19 is slidably connected inside the groove 18. The bottom surface of the slide plate 19 is fixedly connected to the top surface of the movable block 10. The movable block 10 is slidably connected to the fixed frame 4 through the matching of the slide plate 19 and the groove 18. The first spring 9 is used to reset the movement of the slider 6.

[0041] Please see Figure 8 - Figure 11 A second spring 22 is elastically connected between the slide plate 19 and the slide groove 18. One end of the second spring 22 is fixedly connected to the surface of the slide plate 19, and the other end of the second spring 22 is fixedly connected to the inner top surface of the slide groove 18. The second spring 22 is used to reset the movement of the slide plate 19.

[0042] Please see Figure 5 - Figure 10 The laser measuring instrument 2 has two vertical frames 23 fixedly installed on its inner top surface. The inner sides of the two vertical frames 23 are provided with slots 24. The interior of the two slots 24 is slidably connected with matching L-shaped plates 25. The bottom surfaces of the two L-shaped plates 25 are fixedly connected to the surface of the movable plate 3. The cylinder 11 is provided with a ring 40 on its outside. The ring 40 is fixedly connected to the two frame plates 13. The design of the ring 40 is such that when one of the rotating wheels 8 is squeezed, the two frame plates 13 move simultaneously.

[0043] A third spring 26 is elastically connected between the L-shaped plate 25 and the slot 24. One end of the third spring 26 is fixedly connected to the surface of the L-shaped plate 25, and the other end of the third spring 26 is fixedly connected to the inner top surface of the slot 24. The third spring 26 is used for the movement reset of the movable plate 3.

[0044] Please see Figure 1 - Figure 5The bottom surfaces of the two vertical frames 23 are fixedly connected to the horizontal frames 27. The two ends of the two horizontal frames 27 are rotatably connected to the rollers 28. The side surfaces of the two mounting rails 1 are provided with slide rails 29 that match the rollers 28. The horizontal frames 27 are slidably connected to the mounting rails 1 by matching the rollers 28 and the slide rails 29. The matching of the rollers 28 and the slide rails 29 ensures the stability of the laser measuring instrument 2 during the detection process. The bottom surface of any mounting rail 1 is fixedly installed with a suction cup 30. The suction cup 30 is a conventional industrial suction cup 30 with a soft sealing skirt in the prior art.

[0045] Two mounting brackets 31 are fixedly installed on both sides of the laser measuring instrument 2. A drive device 32 is fixedly installed on the surface of each mounting bracket 31. The drive device 32 is a conventional drive device in the prior art, and will not be described in detail here. The output end of the drive device 32 is fixedly connected to the roller 28. Protective shells 33 for protecting the drive device 32 are fixedly installed on both sides of the laser measuring instrument 2. Two handles 38 are fixedly installed on the top surface of the laser measuring instrument 2. A controller 39 is fixedly installed on the surface of the laser measuring instrument 2. The controller 39 is a conventional programmable controller in the prior art. The control device, controller 39, is electrically connected to drive device 32 via wires, controller 39 is electrically connected to laser measuring device 12 via wires, controller 39 is electrically connected to laser rangefinder 17 via wires, and controller 39 is electrically connected to position sensor 20 via wires. The controller 39 controls the operation of drive device 32, laser rangefinder 17, laser measuring device 12 and position sensor 20, which is prior art and will not be described in detail here. The laser rangefinder 17, laser measuring device 12 and position sensor 20 feed back the measured data to controller 39, which is prior art and will not be described in detail here.

[0046] Please see Figure 1 - Figure 8 The top surface of the laser measuring instrument 2 is threaded with a through-type threaded rod 34. A rotating seat 36 is provided below the threaded rod 34. The bottom surface of the rotating seat 36 is fixedly connected to the surface of the movable plate 3. A matching rotating block 35 is rotatably connected inside the rotating seat 36. The rotating block 35 is fixedly connected to the bottom surface of the threaded rod 34. A turntable 37 is fixedly installed on the top surface of the threaded rod 34. The threaded rod 34 has a screw-in design. After the laser measuring instrument 12 completes the adjustment, the threaded rod 34 itself realizes a self-locking function.

[0047] The steps for using this invention are as follows: When using this building exterior wall flatness testing device to test the flatness of a building exterior wall, the testing personnel first fix two mounting rails 1 on the wall to be tested using suction cups 30 (the suction cups 30 are conventional industrial suction cups 30 with soft sealing skirts in the prior art). During the installation of the two mounting rails 1 on the wall, the distance between the two mounting rails 1 is adjusted to adapt to the spacing between the two pairs of rollers 28 (the length of the mounting rails 1 can be laid sequentially according to the distance of the wall to be tested). After the two mounting rails 1 are installed, the testing personnel manually hold the two handles 38 to lift the laser measuring instrument 2, and then install the laser measuring instrument 2 from one side of the two mounting rails 1. During the installation of the laser measuring instrument 2, the rollers 28 are simultaneously fed into the slide rails 29 of the two mounting rails 1. After the laser measuring instrument 2 is set up, the controller 39 is operated, and then the turntable 37 is manually rotated. The rotation of the turntable 37 causes the threaded rod 34 to rotate, which is caused by... The threaded rod 34 is threaded to the top surface of the laser measuring instrument 2, so the threaded rod 34 screws into the laser measuring instrument 2. The screwing of the threaded rod 34 causes the rotating block 35 to screw into the rotating seat 36, which in turn causes the rotating seat 36 to move, causing the movable plate 3 to move inside the slot 24 and stretch the third spring 26. The movement of the movable plate 3 causes multiple sets of fixed frames 4 and slides 5 to move towards the wall. The movement of the slides 5 causes the slider 6, vertical plate 7 and rotating wheel 8 to move closer to the wall. As the threaded rod 34 continues to screw in, the rotating wheel 8 first contacts the wall and is squeezed by the wall. At this time, the rotating wheel 8 moves after being squeezed, causing the vertical plate 7 to move. The movement of the vertical plate 7 causes the slider 6 to slide inside the slides 5 and stretch the first spring 9. The movement of the vertical plate 7 also causes the frame plate 13 and the top column 14 to move towards the top seat 16 (initially, the top column 14 and the top seat 16 are not in contact). The movement of the fixed frame 4 towards the wall causes the movable block 10 and the laser measuring instrument 12 to move. The laser measuring instrument 12 detects the initial distance to the wall, using L. a This indicates that the laser rangefinder 17 detects the initial distance between one end of the top post 14 and the top seat 16, using L... b This indicates that when the distance between the laser measuring device 12 and the wall is the same as the distance between one end of the top column 14 and the top base 16, then L... a =L b Stop rotating the threaded rod 34. The position sensor 20 records the position of the slide plate 19 on the scale 21. Operate the controller 39 again to make the drive device 32 work, causing the roller 28 to roll inside the slide rail 29 and move the crossbeam 27. This causes the laser measuring instrument 2 to slide on the surfaces of the two mounting rails 1. During the movement of the laser measuring instrument 2, the rotating wheel 8 rolls on the wall. When a depression appears on the wall, the rotating wheel 8 moves towards the depression under the action of the first spring 9. At this time, the laser measuring instrument 12 directly detects the distance from itself to the depression. Subtract L from the distance from the laser measuring instrument 12 to the depression. aThe depth of the depression is obtained. When the protrusion on the wall is small, the rotating wheel 8 passes the position of the protrusion. At this time, the rotating wheel 8 is squeezed by the protrusion. The movement of the rotating wheel 8 carries the slider 6 to slide inside the carriage 5, stretching the first spring 9. At this time, the laser measuring device 12 directly detects the distance from itself to the protrusion, using L. a Subtracting the distance from the laser measuring device 12 to the protrusion block, we obtain the protrusion height of the smaller protrusion block. At this point, one end of the top post 14 and the top seat 16 are not in contact. When the protrusion height of the protrusion block is equal to L... a At the same time, the rotating wheel 8 is squeezed by the protrusion. The movement of the rotating wheel 8 causes the slider 6 to slide inside the slide 5, stretching the first spring 9. The distance from the laser measuring device 12 to the protrusion is 0. At this time, the movement of the rotating wheel 8 causes the vertical plate 7 to move. The movement of the vertical plate 7 also causes the frame plate 13 and the top column 14 to move towards the top seat 16. At this time, the end of the top column 14 contacts the top seat 16, but does not squeeze the top seat 16. When the protrusion on the wall is large, the rotating wheel 8 is squeezed by the protrusion. After the end of the top column 14 contacts the top seat 16, the protrusion continues to squeeze the rotating wheel 8. At this time, the movement of the vertical plate 7 causes the top column 14 to move and squeeze the top seat 16. The movement of the top seat 16 causes the connecting plate 15 to move, so that the movable block 10 moves and causes the sliding plate 19 to move in the slide groove 18 and squeeze the second spring 22. At this time, the position sensor 20 records the distance that the sliding plate 19 slides in the slide groove 18. The sliding distance of the sliding plate 19 in the slide groove 18 plus L is used to measure the distance that the sliding plate 19 slides in the slide groove 18. b The obtained value is the protrusion height of the larger protrusion. As the laser measuring instrument 2 continues to move, it detects the flatness of the wall surface and determines whether the height of the protrusion and the depth of the depression are within the error range of later construction. After the laser measuring instrument 2 is set up, the drive device 32 drives the roller 28 to roll inside the slide rail 29, moving the crossbeam 27, which in turn causes the laser measuring instrument 2 to slide on the surface of the two mounting rails 1. During the movement of the laser measuring instrument 2, the rotating wheel 8 rolls on the wall surface, allowing the laser measuring instrument 12 to detect the flatness of the wall surface. Moreover, when there are large protrusions on the wall surface, the laser measuring instrument 2 can effectively protect the laser measuring instrument 12, avoiding collisions during the detection process. Compared with traditional methods... The partially fixed laser measuring instrument 12 can promptly avoid collisions when encountering large protrusions, ensuring its normal operation for wall flatness detection. This also guarantees the accuracy of the measured values, improving the detection quality and efficiency of the laser measuring instrument 2. The mounting rail 1 for the laser measuring instrument 2 can be formed by connecting multiple rails according to the length of the wall to be inspected, allowing the laser measuring instrument 2 to inspect walls at different distances, increasing its practicality. Furthermore, the laser measuring instrument 2 and the mounting rail 1 are detachable, facilitating storage and transfer for measurement.

[0048] Example 2: Please refer to Figure 1 - Figure 13 The difference from Embodiment 1 is that two slots 41 are correspondingly formed on the surface of the cylinder 11, and each slot 41 is rotatably connected to a buckle 43. A fixed plate 44 is fixedly installed on the top surface of the laser measuring instrument 12. The surface of the fixed plate 44 is provided with a guide slope 45, and two slots 46 are correspondingly formed on the surface of the fixed plate 44 to engage with the buckles 43. A rotating plate 47 is fixedly installed on the surface of each buckle 43. A spring shaft 42 is provided between the buckle 43 and the slot 41, and the buckle 43 is rotatably connected to the slot 41 through the spring shaft 42. During the removal of the laser measuring instrument 12, the laser measuring instrument 2 is first removed from the mounting rail 1, and then the rotating plate 47 is manually squeezed. The rotating plate 47 rotates, causing the buckle 43 to rotate and disengage from the slot 46. Then, the laser measuring device 12 is removed from the inside of the cylinder 11. When installing the laser measuring device 12, it is inserted into the cylinder 11. At this time, the guide slope 45 at the top of the laser measuring device 12 presses against the bottom slope of the buckle 43, causing the buckle 43 to rotate. During the process of inserting the laser measuring device 12 into the cylinder 11, when the slot 46 and the buckle 43 are aligned, the buckle 43 resets under the action of the spring shaft 42 and engages with the slot 46, completing the installation of the laser measuring device 12. The laser measuring device 12 is designed to be detachable to prevent it from being damaged by collisions with external objects during the transport of the laser measuring instrument 2.

[0049] The usage steps of this invention are as follows: When using this building exterior wall flatness testing device, after the laser measuring instrument 12 has completed the flatness test of the wall surface, it needs to be removed. During the transfer of the laser measuring instrument 2, to prevent damage caused by collisions with external objects, the laser measuring instrument 12 is removed by first taking it off the mounting rail 1, then manually squeezing the rotating plate 47. The rotating plate 47 rotates, causing the buckle 43 to rotate and disengage from the slot 46. Then, the laser measuring instrument 12 is removed from the inside of the cylinder 11. When the laser... When installing the laser measuring device 12, insert the laser measuring device 12 into the cylinder 11. At this time, the guide slope 45 at the top of the laser measuring device 12 presses against the bottom slope of the buckle 43, and the buckle 43 rotates. During the process of inserting the laser measuring device 12 into the cylinder 11, when the slot 46 corresponds to the buckle 43, the buckle 43 resets under the action of the spring shaft 42 and engages with the slot 46, thus completing the installation of the laser measuring device 12. The laser measuring device 12 is designed to be detachable, so as to avoid the laser measuring device 12 from being damaged by collision with external objects when the laser measuring instrument 2 is transported.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments; the embodiments and descriptions in the specification are merely preferred examples. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flatness testing device for building exterior wall construction, comprising two mounting rails (1) correspondingly installed on the building exterior wall surface, characterized in that: A laser measuring instrument (2) is slidably connected to the surfaces of the two mounting rails (1). The laser measuring instrument (2) has a movable plate (3) inside. Multiple sets of fixed frames (4) are fixedly installed on the bottom surface of the movable plate (3). A slide (5) is fixedly installed on the bottom surface of any fixed frame (4). A matching slider (6) is slidably connected inside any slide (5). A vertical plate (7) is fixedly installed on the inner side of any slider (6). A rotating wheel (8) is rotatably connected to the bottom inner side of any vertical plate (7). A first spring (9) is elastically connected between the slider (6) and the slide (5). A movable block (10) is provided above the rotating wheel (8). A cylinder (11) is fixedly installed on the bottom surface of the movable block (10). A device for detecting the exterior wall of a building is provided at the bottom of the cylinder (11). A flatness laser measuring device (12) is used. A frame plate (13) is fixedly installed on the inner side of the top of any of the vertical plates (7). A top column (14) is fixedly connected to the surface of any of the frame plates (13). A connecting plate (15) is fixedly installed on both sides of the movable block (10). A top seat (16) corresponding to the position of the top column (14) is fixedly installed on the bottom surface of any of the connecting plates (15). A laser rangefinder (17) is fixedly installed on the bottom surface of any of the connecting plates (15). The laser rangefinder (17) is located on one side of the top seat (16). There are two fixed frames (4) in each group. A scale (21) for measuring the movement of the movable block (10) is fixedly installed on the inner side of one of the fixed frames (4) in each group. A position sensor (20) is fixedly installed on the inner side of the other fixed frame (4) in each group.

2. The flatness testing device for building exterior wall construction according to claim 1, characterized in that: One end of the first spring (9) is fixedly connected to the bottom surface of the slider (6), and the other end of the first spring (9) is fixedly connected to the inner bottom surface of the slide (5). Each of the fixed frames (4) has a groove (18) on its inner side. A matching slide plate (19) is slidably connected inside the groove (18). The bottom surface of the slide plate (19) is fixedly connected to the top surface of the movable block (10). The movable block (10) is slidably connected to the fixed frame (4) through the matching of the slide plate (19) and the groove (18).

3. The flatness testing device for building exterior wall construction according to claim 2, characterized in that: A second spring (22) is elastically connected between the slide plate (19) and the slide groove (18). One end of the second spring (22) is fixedly connected to the surface of the slide plate (19), and the other end of the second spring (22) is fixedly connected to the inner top surface of the slide groove (18).

4. The flatness testing device for building exterior wall construction according to claim 1, characterized in that: The laser measuring instrument (2) has two vertical frames (23) fixedly installed on its inner top surface. The inner sides of the two vertical frames (23) are provided with slots (24). The interior of the two slots (24) is slidably connected with matching L-shaped plates (25). The bottom surfaces of the two L-shaped plates (25) are fixedly connected to the surface of the movable plate (3). The cylinder (11) is provided with a ring (40) on its outside. The ring (40) is fixedly connected to the two frame plates (13).

5. The flatness testing device for building exterior wall construction according to claim 4, characterized in that: A third spring (26) is elastically connected between the L-shaped plate (25) and the slot (24). One end of the third spring (26) is fixedly connected to the surface of the L-shaped plate (25), and the other end of the third spring (26) is fixedly connected to the inner top surface of the slot (24).

6. The flatness testing device for building exterior wall construction according to claim 4, characterized in that: The bottom surfaces of the two vertical frames (23) are fixedly connected to the horizontal frames (27), and the two ends of the two horizontal frames (27) are rotatably connected to the rollers (28). The side surfaces of the two mounting rails (1) are provided with slide rails (29) that match the rollers (28). The horizontal frames (27) are slidably connected to the mounting rails (1) by matching the rollers (28) and the slide rails (29). The bottom surface of any one of the mounting rails (1) is fixedly installed with a suction cup (30).

7. The flatness testing device for building exterior wall construction according to claim 1, characterized in that: Two mounting brackets (31) are fixedly installed on both sides of the laser measuring instrument (2). A driving device (32) is fixedly installed on the surface of the mounting bracket (31). The output end of the driving device (32) is fixedly connected to the roller (28). A protective shell (33) for protecting the driving device (32) is fixedly installed on both sides of the laser measuring instrument (2). Two handles (38) are fixedly installed on the top surface of the laser measuring instrument (2). A controller (39) is fixedly installed on the surface of the laser measuring instrument (2). The controller (39) is electrically connected to the driving device (32) through a wire. The controller (39) is electrically connected to the laser measuring instrument (12) through a wire. The controller (39) is electrically connected to the laser rangefinder (17) through a wire. The controller (39) is electrically connected to the position sensor (20) through a wire.

8. The flatness testing device for building exterior wall construction according to claim 7, characterized in that: The laser measuring instrument (2) has a threaded rod (34) threaded in the middle of its top surface. A rotating seat (36) is provided below the threaded rod (34). The bottom surface of the rotating seat (36) is fixedly connected to the surface of the movable plate (3). A matching rotating block (35) is rotatably connected inside the rotating seat (36). The rotating block (35) is fixedly connected to the bottom surface of the threaded rod (34). A turntable (37) is fixedly installed on the top surface of the threaded rod (34).

9. The flatness testing device for building exterior wall construction according to claim 1, characterized in that: The surface of the cylinder (11) has two slots (41) respectively. The inside of each slot (41) is rotatably connected to a buckle (43). The top surface of the laser measuring instrument (12) is fixedly mounted with a fixed plate (44). The surface of the fixed plate (44) is provided with a guide slope (45). The surface of the fixed plate (44) has two slots (46) respectively that engage with the buckles (43). The surfaces of the two buckles (43) are fixedly mounted with rotating plates (47). A spring shaft (42) is provided between the buckle (43) and the slot (41). The buckle (43) is rotatably connected to the slot (41) through the spring shaft (42).

10. A construction process for testing the flatness of building exterior walls, using the flatness testing device for building exterior wall construction as described in any one of claims 1-9, characterized in that, Includes the following steps: S1: After the laser measuring instrument (2) is set up, the turntable (37) rotates and the threaded rod (34) rotates. The threaded rod (34) rotates into the laser measuring instrument (2), so that the rotating seat (36) moves and the movable plate (3) moves inside the slot (24). The movable plate (3) moves and multiple sets of fixed frames (4) and slides (5) move towards the wall. The slides (5) move and the slider (6), vertical plate (7) and rotating wheel (8) move closer to the wall. After the rotating wheel (8) is squeezed, it moves and the vertical plate (7) moves. The vertical plate (7) moves and the slider (6) slides inside the slides (5) to stretch the first spring (9). The vertical plate (7) also moves and the frame plate (13) and the top column (14) move towards the top seat (16). In the initial state, the top column (14) and the top seat (16) do not contact each other. The fixed frame (4) moves towards the wall and moves the movable block (10) and the laser measuring instrument (12). S2: Laser measuring device (12) detects the initial distance to the wall, using L a This indicates that the laser rangefinder (17) detects the initial distance between one end of the top post (14) and the top seat (16), using L... b This indicates that when the distance between the laser measuring device (12) and the wall is the same as the distance between one end of the top column (14) and the top seat (16), then L... a =L b ; S3: When a depression appears on the wall, when the rotating wheel (8) passes through the depression, the rotating wheel (8) moves towards the depression under the action of the first spring (9). At this time, the laser measuring device (12) directly detects the distance from itself to the depression. The distance from the laser measuring device (12) to the depression is subtracted by L. a The depth of the depression is obtained. When the protrusion on the wall is small, the wheel (8) passes the position of the protrusion. At this time, the wheel (8) is squeezed by the protrusion. The movement of the wheel (8) carries the slider (6) to slide inside the carriage (5) and stretch the first spring (9). At this time, the laser measuring device (12) directly detects the distance from itself to the protrusion and uses L. a Subtract the distance from the laser measuring device (12) to the protrusion to obtain the protrusion height of the smaller protrusion; S4: When a large protrusion appears on the wall, the rotating wheel (8) is squeezed by the protrusion. After the end of the top column (14) contacts the top seat (16), the protrusion continues to squeeze the rotating wheel (8). At this time, the vertical plate (7) moves, causing the top column (14) to move and squeeze the top seat (16). The top seat (16) moves, causing the connecting plate (15) to move, so that the movable block (10) moves, causing the sliding plate (19) to move in the slide groove (18) and squeeze the second spring (22). At this time, the position sensor (20) records the distance that the sliding plate (19) slides in the slide groove (18). The distance that the sliding plate (19) slides in the slide groove (18) is added to L. b The obtained value is the protrusion height of the larger protrusion.

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