A wall flatness detection device for building construction and its usage method

Abstract

The present invention provides a wall flatness detection device for building construction and its use method, belonging to the technical field of detection devices. It includes a support frame; a support rod fixedly connected to the side end of the support frame; a fixed rod disposed on one side of the support rod, and a plurality of lasers fixedly installed at the side end of the fixed rod; a moving frame disposed between the support rod and the fixed rod; and a linkage mechanism disposed at the side end of the support rod, the linkage mechanism being connected to the fixed rod. The driven rod drives the rotating shaft to rotate 90°, the rotating shaft drives the moving frame to rotate 90°, and then the entire fixed rod rotates 90°, realizing the deflection of the plurality of lasers. The scans after the deflection of the plurality of lasers are perpendicular and staggered with the previous scans, achieving staggered scanning. Through two or more staggered scans of the wall, it is convenient to provide modeling calculation data for constructing a three-dimensional wall, realizing the overall detection of the wall.

Description

Technical Field

[0001] The present invention belongs to the technical field of detection devices, and particularly relates to a wall flatness detection device for building construction and its use method. Background Art

[0002] Building construction refers to the production activities in the implementation stage of engineering construction, which is the construction process of various buildings. It can also be said to be the process of turning the various lines on the design drawings into physical objects at the designated location. It includes foundation engineering construction, main structure construction, roofing engineering construction, decoration engineering construction, etc. The place where construction operations are carried out is called the "building construction site" or "construction site", also known as the construction site.

[0003] In the existing wall flatness detection process, the wall flatness is detected by using a straightedge. However, limited by the monitoring accuracy of the straightedge, the wall cannot be detected as a whole, and the overall perpendicularity between the wall and the ground cannot be detected. For this reason, we propose a wall flatness detection device for building construction and its use method. Summary of the Invention

[0004] The purpose of the present invention is to provide a wall flatness detection device for building construction and its use method, aiming to solve the problems in the above technology that, limited by the limited monitoring accuracy of the straightedge, the wall cannot be detected as a whole, and the overall perpendicularity between the wall and the ground cannot be detected.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A wall flatness detection device for building construction, including a support frame;

[0007] A support rod, which is fixedly connected to the side end of the support frame;

[0008] A fixed rod, which is arranged on one side of the support rod, and a plurality of lasers are fixedly installed on the side end of the fixed rod;

[0009] A moving frame, which is arranged between the support rod and the fixed rod; and

[0010] A linkage mechanism, which is arranged on the side end of the support rod, and the linkage mechanism is connected to the fixed rod to move the plurality of lasers.

[0011] As a preferred solution of the present invention, the linkage mechanism includes a pushing component, a guiding component and a connecting rod component. The pushing component is arranged on the side end of the moving frame, the pushing component is connected to the fixed rod, the guiding component is arranged on the side end of the moving frame, the guiding component is connected to the pushing component, the connecting rod component is arranged on the side end of the support rod, and the connecting rod component is connected to the moving frame.

[0012] As a preferred embodiment of the present invention, the pushing component includes a motor slot, a sliding slot, a pushing motor, a lead screw and a slider. The motor slot is opened at the side end of the moving frame. The pushing motor is fixedly connected between the inner walls of the motor slot. The sliding slot is opened at the side end of the moving frame. The lead screw is rotatably connected between the inner walls of the sliding slot. One end of the lead screw is fixedly connected to the long output end of the pushing motor. The slider is slidably connected to the circumferential surface of the lead screw. The slider is located between the inner walls of the sliding slot. The slider is fixedly connected to the fixed rod.

[0013] As a preferred embodiment of the present invention, the guiding component includes a sliding slot and a limiting block. There are two sliding slots, and the two sliding slots are opened at the side end of the moving frame. Both of the two sliding slots are communicated with the sliding slot. There are two limiting blocks, and both of the two limiting blocks slide between the inner walls of the two sliding slots. Both of the two limiting blocks are connected to the slider.

[0014] As a preferred embodiment of the present invention, the connecting rod component includes a support plate, a swinging motor, a pulling disc, a driving rod, a pulling rod, a driven rod, a driven disc, a rotating shaft and a rotating slot. The rotating slot is opened at the side end of the support rod. The rotating shaft is rotatably connected between the inner walls of the rotating slot. One end of the rotating shaft is fixedly connected to the moving frame. The driven rod is fixedly connected to the other end of the rotating shaft. The support plate is fixedly connected between the inner walls of the support frame. The swinging motor is fixedly connected to the top of the support plate. The pulling disc is fixedly connected to the output end of the swinging motor. The driving rod is fixedly connected to the circumferential surface of the pulling disc. The driven disc is fixedly connected to the circumferential surface of the driven rod. The pulling rod is arranged between the driving rod and the pulling rod. The top of the pulling rod is movably hinged to the driven disc. The bottom of the pulling rod is movably hinged to the driving rod.

[0015] As a preferred embodiment of the present invention, a lifting block is fixedly connected to the inner wall of the support frame. A conical hammer is fixedly connected to the bottom of the lifting block. Two vertical lines are opened on the inner wall of the support frame.

[0016] As a preferred embodiment of the present invention, the bottom of the support frame is fixedly connected to two fixed feet. Two adjusting feet are threadedly connected to the top of the support frame.

[0017] As a preferred embodiment of the present invention, two counterweights are fixedly connected to the top of the support plate. The two counterweights are located on both sides of the swinging motor.

[0018] As a preferred embodiment of the present invention, a main machine is fixedly installed on the top of the support plate.

[0019] A method for using a wall flatness detection device for building construction includes the following steps:

[0020] S1. Horizontal installation:

[0021] Place the overall device on the ground. By rotating the two adjusting feet, the conical hammer pulls the straight wire rope to align with the two vertical lines, ensuring that the support frame is parallel to the standard horizontal plane, achieving vertical calibration of the fixed rod, making the fixed rod perpendicular to the horizontal ground, and completing the horizontal installation;

[0022] S2. Scanning the wall:

[0023] Start the pushing motor. The output end of the pushing motor drives the screw rod to rotate. The screw rod pushes the fixed rod through the sliding fit with the slider. At the same time, through the sliding fit of the two chutes and the two limit blocks, the slider is guided and pushed, so that the multiple lasers on the fixed rod perform a straight-line scan on the wall surface, achieving wall scanning;

[0024] S3. Interleaved scanning:

[0025] After the multiple lasers complete the straight-line scan in the vertical direction of the wall, start the swinging motor. The output end of the swinging motor drives the pulling disc to rotate 90°. Then, the driving rod pulls the driven disc to deflect through the pulling rod. The driven disc drives the driven rod to rotate 90°. The driven rod drives the rotating shaft to rotate 90°. The rotating shaft drives the moving frame to rotate 90°. Then, the entire fixed rod rotates 90°, achieving deflection of the multiple lasers. The scan after the deflection of the multiple lasers is vertically interleaved with the previous scan, achieving interleaved scanning.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. In this solution, after the multiple lasers complete the straight-line scan in the vertical direction of the wall, start the swinging motor. The output end of the swinging motor drives the pulling disc to rotate 90°. Then, the driving rod pulls the driven disc to deflect through the pulling rod. The driven disc drives the driven rod to rotate 90°. The driven rod drives the rotating shaft to rotate 90°. The rotating shaft drives the moving frame to rotate 90°. Then, the entire fixed rod rotates 90°, achieving deflection of the multiple lasers. The scan after the deflection of the multiple lasers is vertically interleaved with the previous scan, achieving interleaved scanning. Through two or more interleaved scans of the wall, it is convenient to provide modeling calculation data for constructing a three-dimensional wall surface and achieve overall detection of the wall.

[0028] 2. In this solution, the host and the multiple lasers are electrically connected. The installation of the host is used to provide data support for modeling, and the data of the wall scanned interleaved can be modeled and analyzed to achieve three-dimensional modeling detection and analysis of the wall and calculate the perpendicularity between the wall and the standard horizontal plane.

[0029] 3. In this solution, during linear scanning, multiple lasers are powered on and started, the driving motor is started, the output end of the driving motor drives the lead screw to rotate, the lead screw pushes the slider to move through the sliding fit with the slider, the slider moves within the sliding groove, the slider drives the fixed rod to move linearly, and the fixed rod drives the multiple lasers to scan the wall, realizing the linear scanning of the wall. According to the laser time reflected from the wall surface, the distance change between the wall and the fixed rod is calculated, and then the flatness of the wall is detected after building construction. Description of the Drawings

[0030] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0031] Figure 1 is the first - perspective three - dimensional view of a wall flatness detection device for building construction according to the present invention;

[0032] Figure 2 is the second - perspective three - dimensional view of a wall flatness detection device for building construction according to the present invention;

[0033] Figure 3 is the half - sectional view of a wall flatness detection device for building construction according to the present invention;

[0034] Figure 4 is the exploded view of a wall flatness detection device for building construction according to the present invention;

[0035] Figure 5 is the exploded view of the flipping assembly of a wall flatness detection device for building construction according to the present invention;

[0036] Figure 6 is the exploded view of the driving assembly and the guiding assembly of a wall flatness detection device for building construction according to the present invention;

[0037] Figure 7 is the horizontal positioning mechanism of a wall flatness detection device for building construction according to the present invention;

[0038] Figure 8 is a wall flatness detection device for building construction according to the present invention Figure 7 Enlarged view of part A.

[0039] In the figure: 1, support frame; 2, support rod; 3, support plate; 4, fixed rod; 5, laser; 6, moving frame; 7, sliding groove; 8, motor groove; 9, driving motor; 10, lead screw; 11, slider; 12, limit block; 13, swing motor; 14, pulling disc; 15, driving rod; 16, pulling rod; 17, driven rod; 18, driven disc; 19, rotating shaft; 20, rotating groove; 21, adjusting support foot; 22, fixed support foot; 23, counterweight; 24, main unit; 25, lifting block; 26, vertical line; 27, plumb bob; 28, sliding slot. Detailed implementation manner

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] Embodiment

[0042] Refer to Figure 1 - Figure 8 , a wall flatness detection device for building construction, comprising:

[0043] Support frame 1;

[0044] Support rod 2, the support rod 2 is fixedly connected to the side end of the support frame 1;

[0045] Fixed rod 4, the fixed rod 4 is arranged on one side of the support rod 2, and a plurality of lasers 5 are fixedly installed on the side end of the fixed rod 4;

[0046] Moving frame 6, the moving frame 6 is arranged between the support rod 2 and the fixed rod 4; and

[0047] Linkage mechanism, the linkage mechanism is arranged on the side end of the support rod 2, the linkage mechanism is connected to the fixed rod 4, and is used to move a plurality of lasers 5.

[0048] In the present invention, the support frame 1 is used to support and fix the support rod 2, the support plate 3 and the lifting block 25, the support rod 2 is used to support and fix the rotating shaft 19, the support rod 2 is perpendicular to the standard horizontal plane at 90°, the fixed rod 4 is used to support and fix a plurality of lasers 5, the fixed rod 4 is parallel to the support rod 2, and a plurality of lasers 5 perform linear scanning on the wall by emitting laser light. The linkage mechanism is connected to the fixed rod 4 and is used to move a plurality of lasers 5.

[0049] The linkage mechanism includes a pushing component, a guiding component and a connecting rod component. The pushing component is arranged at the side end of the moving frame 6, the pushing component is connected to the fixed rod 4, the guiding component is arranged at the side end of the moving frame 6, the guiding component is connected to the pushing component, and the connecting rod component is arranged at the side end of the support rod 2, and the connecting rod component is connected to the moving frame 6.

[0050] In the present invention, the pushing component is used to linearly push the fixed rod 4 and the plurality of lasers 5, the guiding component is used to guide and limit the movement of the plurality of sliders 11, ensure that the plurality of lasers 5 are in a linear state during the movement, and the connecting rod component is used to deflect the plurality of lasers 5.

[0051] The pushing component includes a motor slot 8, a sliding slot 28, a pushing motor 9, a lead screw 10 and a slider 11. The motor slot 8 is opened at the side end of the moving frame 6, the pushing motor 9 is fixedly connected between the inner walls of the motor slot 8, the sliding slot 28 is opened at the side end of the moving frame 6, the lead screw 10 is rotatably connected between the inner walls of the sliding slot 28, one end of the lead screw 10 is fixedly connected to the long output end of the pushing motor 9, the slider 11 is slidably connected to the circumferential surface of the lead screw 10, the slider 11 is located between the inner walls of the sliding slot 28, and the slider 11 is fixedly connected to the fixed rod 4.

[0052] In the present invention, the opening of the motor slot 8 is used to accommodate the pushing motor 9, the pushing motor 9 provides torque for the rotation of the lead screw 10, the opening of the sliding slot 28 is used to accommodate the lead screw 10 and the slider 11, the lead screw 10 pushes the slider 11 to move through the sliding fit with the slider 11, the slider 11 is used to support the fixed rod 4. During linear scanning, the plurality of lasers 5 are powered on and started, the pushing motor 9 is started, the output end of the pushing motor 9 drives the lead screw 10 to rotate, the lead screw 10 pushes the slider 11 to move through the sliding fit with the slider 11, the slider 11 moves in the sliding slot 28, the slider 11 drives the fixed rod 4 to move linearly, the fixed rod 4 drives the plurality of lasers 5 to scan the wall surface, realizing the linear scanning of the wall. According to the laser time reflected by the wall surface, the distance change between the wall and the fixed rod 4 is calculated, and then the flatness of the wall is detected after building construction.

[0053] The guiding component includes two chutes 7 and two limit blocks 12. The two chutes 7 are opened at the side end of the moving frame 6, and the two chutes 7 are both communicated with the sliding slot 28. The two limit blocks 12 are both slid between the inner walls of the two chutes 7, and the two limit blocks 12 are both connected to the slider 11.

[0054] In the present invention, two sliding grooves 7 are provided to accommodate the sliding of two limiting blocks 12. The two limiting blocks 12 slide within the two sliding grooves 7, and there is a sliding fit between the two limiting blocks 12 and the two sliding grooves 7, so as to guide and limit the slider 11, avoid vibration of the slider 11 during movement, and avoid interfering with the vibration error generated by the linear scanning of multiple lasers 5.

[0055] The connecting rod assembly includes a support plate 3, a swing motor 13, a pulling disc 14, a driving rod 15, a pulling rod 16, a driven rod 17, a driven disc 18, a rotating shaft 19 and a rotating groove 20. The rotating groove 20 is opened at the side end of the support rod 2. The rotating shaft 19 is rotatably connected between the inner walls of the rotating groove 20. One end of the rotating shaft 19 is fixedly connected to the moving frame 6. The driven rod 17 is fixedly connected to the other end of the rotating shaft 19. The support plate 3 is fixedly connected between the inner walls of the support frame 1. The swing motor 13 is fixedly connected to the top of the support plate 3. The pulling disc 14 is fixedly connected to the output end of the swing motor 13. The driving rod 15 is fixedly connected to the circumferential surface of the pulling disc 14. The driven disc 18 is fixedly connected to the circumferential surface of the driven rod 17. The pulling rod 16 is arranged between the driving rod 15 and the pulling rod 16. The top of the pulling rod 16 is movably hinged to the driven disc 18, and the bottom of the pulling rod 16 is movably hinged to the driving rod 15.

[0056] In the present invention, the opening of the rotating groove 20 is used to accommodate the rotating shaft 19. The rotating shaft 19 is used to support and fix the moving frame 6. The driven rod 17 is used to drive the rotating shaft 19 to rotate. The support plate 3 is used to support and fix the swing motor 13, the main unit 24 and two counterweights 23. The swing motor 13 is used to provide power for the deflection of the fixed rod 4 and the moving frame 6. The pulling disc 14 drives the driving rod 15 to deflect through deflection. The driving rod 15 is used to drive the pulling rod 16 to move. The pulling rod 16 is used to pull the driven disc 18 to move. Then, the driven disc 18 pulls the driven rod 17 to deflect. After the linear scanning of the vertical direction of the wall by multiple lasers 5 is completed, the swing motor 13 is started. The output end of the swing motor 13 drives the pulling disc 14 to rotate 90°. Then, the driving rod 15 pulls the driven disc 18 to deflect through the pulling rod 16. The driven disc 18 drives the driven rod 17 to rotate 90°. The driven rod 17 drives the rotating shaft 19 to rotate 90°. The rotating shaft 19 drives the moving frame 6 to rotate 90°. Then, the whole fixed rod 4 rotates 90°, so as to deflect multiple lasers 5. The scanning after the deflection of multiple lasers 5 is vertically staggered with the previous scanning, so as to realize staggered scanning. Through two or more staggered scans of the wall, it is convenient to provide modeling calculation data for constructing a three-dimensional wall surface and realize the overall detection of the wall.

[0057] A lifting block 25 is fixedly connected to the inner wall of the support frame 1. A conical hammer 27 is fixedly connected to the bottom of the lifting block 25. Two perpendicular vertical lines 26 are opened on the inner wall of the support frame 1.

[0058] In the present invention, the lifting block 25 is used to fixedly support the conical hammer 27 through a cord, and the two vertical lines 26 are used to provide vertical alignment. During the installation of the overall device, by pulling a straight cord with the conical hammer 27 to align with the two vertical lines 26, the support frame 1 is made parallel to the standard horizontal plane, achieving vertical calibration of the fixed rod 4.

[0059] The bottom of the support frame 1 is fixedly connected to two fixed feet 22, and the top of the support frame 1 is threadedly connected to two adjusting feet 21.

[0060] In the present invention, the two fixed feet 22 are used to support the support frame 1, and the two adjusting feet 21 are threadedly connected to the bottom of the support frame 1. By rotating the two adjusting feet 21, the included angle between the support frame 1 and the ground is adjusted. When the ground forms an angle with the standard ground, horizontal calibration can be achieved by rotating the two adjusting feet 21.

[0061] Two counterweights 23 are fixedly connected to the top of the support plate 3, and the two counterweights 23 are located on both sides of the swing motor 13.

[0062] In the present invention, the two counterweights 23 are used to apply pressure to the support frame 1, shifting the center of gravity of the device downward to ensure that the support frame 1 will not tip over due to the deflection of the fixed rod 4.

[0063] A main unit 24 is fixedly installed on the top of the support plate 3.

[0064] In the present invention, the main unit 24 is electrically connected to a plurality of lasers 5. The installation of the main unit 24 is used to provide data support for modeling, enabling modeling analysis of the wall data obtained by staggered scanning, realizing three-dimensional modeling detection and analysis of the wall, and calculating the perpendicularity between the wall and the standard horizontal plane.

[0065] A method for using a wall flatness detection device for building construction includes the following steps:

[0066] S1. Horizontal installation:

[0067] Place the overall device on the ground. By rotating the two adjusting feet 21, the conical hammer 27 is used to pull a straight cord to align with the two vertical lines 26, ensuring that the support frame 1 is parallel to the standard horizontal plane, achieving vertical calibration of the fixed rod 4, and making the fixed rod 4 perpendicular to the horizontal ground to complete horizontal installation;

[0068] S2. Scan the wall:

[0069] Start the driving motor 9. The output end of the driving motor 9 drives the screw rod 10 to rotate. The screw rod 10 pushes the fixed rod 4 through the sliding fit with the slider 11. At the same time, with the sliding fit between the two chutes 7 and the two limit blocks 12, the slider 11 is guided and pushed, so that the multiple lasers 5 on the fixed rod 4 perform a linear scan on the wall surface, realizing the scanning of the wall body;

[0070] S3. Interleaved scanning:

[0071] When the linear scan of the multiple lasers 5 in the vertical direction of the wall body is completed, start the swing motor 13. The output end of the swing motor 13 drives the pulling disc 14 to rotate 90°. Then, the driving rod 15 pulls the driven disc 18 to deflect through the pulling rod 16. The driven disc 18 drives the driven rod 17 to rotate 90°. The driven rod 17 drives the rotating shaft 19 to rotate 90°. The rotating shaft 19 drives the moving frame 6 to rotate 90°. Then, the whole fixed rod 4 rotates 90°, realizing the deflection of the multiple lasers 5. The scan after the deflection of the multiple lasers 5 is vertically interleaved with the previous scan, realizing the interleaved scan.

[0072] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wall flatness detection device for building construction, characterized in that Comprising; Support frame (1); Support rod (2), the support rod (2) being fixedly connected to the side end of the support frame (1); Fixed rod (4), the fixed rod (4) being arranged on one side of the support rod (2), and a plurality of lasers (5) being fixedly installed at the side end of the fixed rod (4); Moving frame (6), the moving frame (6) being arranged between the support rod (2) and the fixed rod (4); And Linkage mechanism, the linkage mechanism being arranged at the side end of the support rod (2), the linkage mechanism being connected to the fixed rod (4) for moving the plurality of lasers (5); The linkage mechanism includes a pushing component, a guiding component and a connecting rod component. The pushing component is arranged at the side end of the moving frame (6), the pushing component is connected to the fixed rod (4), the guiding component is arranged at the side end of the moving frame (6), the guiding component is connected to the pushing component, the connecting rod component is arranged at the side end of the support rod (2), and the connecting rod component is connected to the moving frame (6); The guiding component includes a sliding groove (7) and a limiting block (12). There are two sliding grooves (7), the two sliding grooves (7) are opened at the side end of the moving frame (6), both of the two sliding grooves (7) are communicated with the sliding slot (28), there are two limiting blocks (12), both of the two limiting blocks (12) slide between the inner walls of the two sliding grooves (7), and both of the two limiting blocks (12) are connected to the slider (11); The connecting rod component includes a support plate (3), a swing motor (13), a pulling disc (14), a driving rod (15), a pulling rod (16), a driven rod (17), a driven disc (18), a rotating shaft (19) and a rotating groove (20). The rotating groove (20) is opened at the side end of the support rod (2), the rotating shaft (19) is rotatably connected between the inner walls of the rotating groove (20), one end of the rotating shaft (19) is fixedly connected to the moving frame (6), the driven rod (17) is fixedly connected to the other end of the rotating shaft (19), the support plate (3) is fixedly connected between the inner walls of the support frame (1), the swing motor (13) is fixedly connected to the top of the support plate (3), the pulling disc (14) is fixedly connected to the output end of the swing motor (13), the driving rod (15) is fixedly connected to the circumferential surface of the pulling disc (14), the driven disc (18) is fixedly connected to the circumferential surface of the driven rod (17), the pulling rod (16) is arranged between the driving rod (15) and the pulling rod (16), the top of the pulling rod (16) is movably hinged to the driven disc (18), and the bottom of the pulling rod (16) is movably hinged to the driving rod (15).

2. The wall surface flatness detection device for building construction according to claim 1, characterized in that, The pushing component includes a motor slot (8), a sliding slot (28), a pushing motor (9), a lead screw (10) and a slider (11). The motor slot (8) is opened at the side end of the moving frame (6). The pushing motor (9) is fixedly connected between the inner walls of the motor slot (8). The sliding slot (28) is opened at the side end of the moving frame (6). The lead screw (10) is rotatably connected between the inner walls of the sliding slot (28). One end of the lead screw (10) is fixedly connected to the long output end of the pushing motor (9). The slider (11) is slidably connected to the circumferential surface of the lead screw (10). The slider (11) is located between the inner walls of the sliding slot (28). The slider (11) is fixedly connected to the fixed rod (4).

3. A wall flatness detection device for building construction according to claim 1, characterized in that, A lifting block (25) is fixedly connected to the inner wall of the support frame (1). A conical hammer (27) is fixedly connected to the bottom of the lifting block (25). Two perpendicular vertical lines (26) are opened on the inner wall of the support frame (1).

4. The wall flatness detection device for building construction according to claim 3, characterized in that, The bottom of the support frame (1) is fixedly connected to two fixed feet (22). Two adjusting feet (21) are threadedly connected to the top of the support frame (1).

5. An apparatus for detecting the flatness of a wall surface used in building construction according to claim 4, characterized in that, Two counterweight blocks (23) are fixedly connected to the top of the support plate (3). The two counterweight blocks (23) are located on both sides of the swing motor (13).

6. The wall surface flatness detection device for building construction according to claim 5, wherein A main machine (24) is fixedly installed on the top of the support plate (3).

7. A method for using a wall flatness detection device for building construction, characterized in that, Applying a wall surface flatness detection device for building construction according to any one of claims 1-6, comprising the following steps: S1. Horizontal installation: Place the whole device on the ground. By rotating the two adjusting feet (21), the conical hammer (27) pulls the straight wire rope to align with the two vertical lines (26), ensuring that the support frame (1) is parallel to the standard horizontal plane, realizing vertical calibration of the fixed rod (4), and making the fixed rod (4) perpendicular to the horizontal ground to complete the horizontal installation; S2. Scanning the wall: Start the pushing motor (9). The output end of the pushing motor (9) drives the lead screw (10) to rotate. The lead screw (10) pushes the fixed rod (4) through the sliding fit with the slider (11). At the same time, through the sliding fit of the two sliding grooves (7) and the two limit blocks (12), the slider (11) is guided and pushed, so that the multiple lasers (5) on the fixed rod (4) perform a straight scan on the wall surface to realize scanning the wall; S3. Staggered scanning: After the multiple lasers (5) complete the straight scan in the vertical direction of the wall, start the swing motor (13). The output end of the swing motor (13) drives the pulling disc (14) to rotate 90°. Then the driving rod (15) pulls the driven disc (18) to deflect through the pulling rod (16). The driven disc (18) drives the driven rod (17) to rotate 90°. The driven rod (17) drives the rotating shaft (19) to rotate 90°. The rotating shaft (19) drives the moving frame (6) to rotate 90°. Then the whole fixed rod (4) rotates 90°, realizing the deflection of the multiple lasers (5). The scan after the deflection of the multiple lasers (5) is perpendicular and staggered with the previous scan to realize staggered scanning.

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