Flatness detection device for building construction

Abstract

The invention provides a flatness detection device for building construction, and relates to the technical field of construction flatness detection, the flatness detection device comprises a mounting support member, and a vertical counterweight member is mounted on the mounting support member; the device is characterized in that the vertical counterweight piece is used for adjusting self-perpendicularity; a row of flatness detection pieces are mounted on the vertical counterweight piece; one row of flatness detection pieces are used for detecting the flatness of the outer wall; crack detection parts are respectively mounted on one row of flatness detection parts, so that the structure can conveniently detect cracks and brick joints, the detection is more comprehensive, the crack omission ratio is reduced, meanwhile, the detection is efficient, and the problems that an existing flatness detection device for building construction is poor in wall flatness detection comprehensiveness, the cracks and the brick joints of the wall are inconvenient to detect, and the detection efficiency is high are solved. And omission is easily caused.

Description

Technical Field

[0001] The invention relates to the technical field of construction leveling detection, and in particular to a leveling detection device used in building construction. Background Art

[0002] In actual construction work, after the outer wall of the building is poured or repaired, it is necessary to install insulation boards on the outer surface. The installation of the insulation boards requires that the wall flatness meets the standards, so the current outer wall of the building needs to be leveled with cement mortar. During the construction of the outer wall of the building, the flatness of the wall needs to be tested. At the same time, the cracks in the wall or the gaps between the blocks need to be filled and leveled. The current flatness detection device for building construction has poor comprehensiveness in wall flatness detection, which is not convenient for detecting cracks in the wall and brick joints. It usually requires manual visual inspection, which is easy to cause omissions. The inspection efficiency of high-rise buildings is even lower, and it is not convenient to realize mobile inspection on the outer wall of the building. It is necessary to use a ruler to detect each point by taking a hanging basket, which is inefficient and has poor accuracy. At the same time, most of them measure the horizontal flatness of the building, and the verticality of the building is not convenient for one-time detection, and the missed detection rate is high. Summary of the invention

[0003] The disclosed embodiment relates to a flatness detection device for building construction, wherein the crack detection component can facilitate the structure to detect cracks and brick joints, making the detection more comprehensive, reducing the crack missed detection rate, and at the same time, the detection is efficient, thus solving the problem that the current flatness detection device for building construction has poor comprehensiveness in wall flatness detection, is not convenient for detecting wall cracks and brick joints, and is prone to omissions.

[0004] In a first aspect of the present disclosure, a flatness detection device for construction is provided, comprising a mounting support, on which a vertical counterweight is mounted; characterized in that: the vertical counterweight is used to adjust self-verticality; a row of flatness detection members are mounted on the vertical counterweight; a row of the flatness detection members is used to detect the flatness of the exterior wall; a row of the flatness detection members are respectively mounted with crack detection members; the crack detection members are used to detect wall cracks; a skew alarm member is mounted on the mounting support; the skew alarm member is mounted on the vertical counterweight; a negative pressure wall-sticking member is mounted on the mounting support; a cleaning member is mounted on the mounting support, and the cleaning member is used to clean concrete attached to the wall; the mounting support comprises: a rotating connecting shaft, a wheel frame and an adjusting rope, wheel frames are respectively fixedly mounted on both ends of the rotating connecting shaft; an adjusting rope is fixedly mounted on the bottom of the left wheel frame; the adjusting rope is used to pull and adjust the position of the rotating connecting shaft.

[0005] In at least some embodiments, the mounting support also includes: a lifting rope, a window edge anti-jamming plate and rollers, the lifting rope is fixedly installed on the rotating connecting shaft; the window edge anti-jamming plate is fixedly installed on the two wheel frames; the lifting rope is used for an external winch; rollers are rotatably installed on the two wheel frames respectively; and the rollers are used to roll and fit the wall.

[0006] In at least some embodiments, the negative pressure wall-mounted component includes: a wall-mounted mounting plate and an air suction hood, wherein the wall-mounted mounting plate is fixedly mounted on a wheel frame; an air suction hood is fixedly mounted on the bottom of the wall-mounted mounting plate; and the air suction hood is used to assist the negative pressure in fitting to the wall.

[0007] In at least some embodiments, the cleaning component includes: a cleaning steel brush and a shovel plate, wherein the cleaning steel brush is fixedly installed between two wheel frames by bolts; steel bristles are provided on the inner side of the cleaning steel brush; a shovel plate is fixedly installed on the cleaning steel brush, and the shovel plate is used to scrape and clean the wall surface.

[0008] In at least some embodiments, the negative pressure wall-mounted component further includes: an electric suction pump, which is fixedly mounted on the wall-mounted mounting plate; and the electric suction pump is connected to the suction hood.

[0009] In at least some embodiments, the skew alarm component includes: a fixed conductive sheet, a skew conductive sheet and a skew alarm light, wherein the fixed conductive sheet is fixedly mounted on the bottom of another wheel frame; two skew conductive sheets are fixedly mounted on the bottom side of the rotating mounting shell; the fixed conductive sheet is located between the two skew conductive sheets; the skew alarm light is fixedly mounted on the rotating mounting shell; the fixed conductive sheet, the skew conductive sheet and the skew alarm light are connected in series with a power supply.

[0010] The present invention provides a flatness detection device for building construction, which has the following beneficial effects:

[0011] The support member installed in the present invention can be pulled on the roof to conduct a comprehensive inspection of the exterior wall of the building. There is no need for manual climbing, which is more efficient. A row of swing detection rods can ensure the comprehensiveness of the inspection, and can automatically fit on the wall to perform depression detection. A comprehensive inspection can be performed on the depression or bulge of the wall. The touch alarm method is more intuitive and avoids the problems of low service life of the traditional marking method and inconvenience in observation at a high height.

[0012] In addition, the use of crack detection parts does not affect the normal flatness detection work, and is convenient for workers to repair or fill cracks and depressions in brick joints, which can be more suitable for brick joint detection work on brick walls.

[0013] In addition, by using a skew alarm component in conjunction with a vertical counterweight, the verticality of the wall can be detected to prevent the overall verticality deviation of the building from causing the vertical flatness deviation to go undetected. The detection is accurate and intuitive, and can be more suitable for use in high-rise building detection.

[0014] In addition, the use of negative pressure wall stickers can utilize the negative pressure generated by wind to adsorb on the wall surface, ensuring the accuracy of the flatness test data. Cleaning steel brushes and shovels can be used to remove dripping concrete mortar adhered to the wall during construction. At the same time, the wall surface can be swept and brushed to assist in cleaning, reducing the difficulty of cleaning the subsequent installation of insulation boards, while also preventing impurities on the wall from interfering with the flatness test of this structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0016] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1 A schematic diagram showing the overall structure of the present application;

[0019] Figure 2 A schematic diagram showing the bottom structure of the present application;

[0020] Figure 3 A cross-sectional view showing the internal structure of the present application;

[0021] Figure 4 A schematic diagram showing the mounting support structure of the present application is shown;

[0022] Figure 5 A schematic diagram showing the vertical counterweight structure of the present application is shown;

[0023] Figure 6 This application shows Figure 3 A magnified view of the structure of the middle B region;

[0024] Figure 7 This application shows Figure 2 A magnified view of the structure of the middle C region;

[0025] Figure 8 A schematic diagram showing the negative pressure wall-attaching member structure of the present application is shown;

[0026] Fig. 9 This application shows Figure 6 A magnified view of the structure of the middle E region;

[0027] Fig.10 This application shows Figure 8A magnified view of the structure of the middle D region;

[0028] Fig.11 A schematic diagram showing the structure of the cleaning element of the present application is shown;

[0029] Fig.12 A schematic diagram of the flatness detection member structure of the present application is shown.

[0030] List of reference numerals:

[0031] 1. Mounting support; 101. Rotating connecting shaft; 1011. Wheel frame; 1012. Adjusting rope; 102. Lifting rope; 103. Anti-stuck plate along window edge; 104. Roller; 2. Vertical counterweight; 201. Rotating mounting shell; 202. Counterweight column; 203. Concave alarm light; 204. Crack alarm light; 205. Concave and convex electrical connection piece; 3. Flatness detection piece; 301. Swing detection rod; 302. Swing spring; 303. Electrical spring; 4. Crack detection part; 401. Crack detection sliding column; 4011. Crack stop head; 402. Micro switch; 403. Tension spring; 5. Skew alarm part; 501. Fixed conductive sheet; 502. Skew conductive sheet; 503. Skew alarm light; 6. Negative pressure wall-mounted part; 601. Wall-mounted mounting plate; 602. Suction hood; 603. Electric suction pump; 7. Cleaning part; 701. Cleaning steel brush; 702. Shovel plate. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figures 1 to 12 :

[0034] The present invention proposes a flatness detection device for building construction, comprising a mounting support 1, on which a vertical counterweight 2 is mounted; the characteristic is that: the vertical counterweight 2 is used to adjust self-verticality; a row of flatness detection members 3 is mounted on the vertical counterweight 2; a row of flatness detection members 3 is used to detect the flatness of the exterior wall; a row of flatness detection members 3 are respectively mounted with crack detection members 4; the crack detection member 4 is used to detect wall gaps; a skew alarm member 5 is mounted on the mounting support 1; the skew alarm member 5 is mounted on the vertical counterweight 2; a negative pressure wall-attaching member 6 is mounted on the mounting support 1; a cleaning member 7 is mounted on the mounting support 1, and the cleaning member 7 is used to clean concrete attached to the wall; the mounting support 1 comprises: a rotating connecting shaft 101, a wheel frame 1011 and an adjusting rope 1012, and the wheel frames 1011 are respectively fixedly mounted at both ends of the rotating connecting shaft 101; an adjusting rope 1012 is fixedly mounted at the bottom of the left wheel frame 1011; the adjusting rope 1012 is used to pull and adjust the position of the rotating connecting shaft 101.

[0035] In the embodiment of the present disclosure, the mounting support 1 also includes: a lifting rope 102, a window edge anti-stuck plate 103 and a roller 104. The lifting rope 102 is fixedly installed on the rotating connecting shaft 101; the window edge anti-stuck plate 103 is fixedly installed on the two wheel frames 1011; the lifting rope 102 is used for an external winch; the two wheel frames 1011 are respectively rotatably mounted with rollers 104; the rollers 104 are used to roll against the wall; the vertical counterweight 2 includes: a rotating mounting shell 201, a counterweight column 202, a recessed alarm light 203, a crack alarm light 204 and a concave and convex electrical connection sheet 205, and the rotating mounting shell 201 is rotatably mounted on the rotating On the connecting shaft 101; a counterweight column 202 is fixedly installed at the bottom of the rotating mounting shell 201; a recessed alarm light 203 is fixedly installed on the side of the rotating mounting shell 201; a crack alarm light 204 is fixedly installed on the rotating mounting shell 201; two concave and convex electrical connection sheets 205 are fixedly installed on the inner side of the rotating mounting shell 201; the two concave and convex electrical connection sheets 205 are used to control the recessed alarm light 203 to light up and alarm; a row of electrical connection springs 303 is located between the two rows of concave and convex electrical connection sheets 205; the flatness detection member 3 includes: a swing detection rod 301, a swing spring 302 and an electrical connection spring 303, and the swing detection rod 301 is rotatably mounted on the rotating mounting Shell 201; a swing spring 302 is fixedly mounted on the swing detection rod 301, and the end of the swing spring 302 is fixedly mounted on the inner side of the rotating mounting shell 201; a power connection spring 303 is fixedly mounted on the swing detection rod 301, and the power connection spring 303 is an elastic structure; the power connection spring 303 is aligned with the concave and convex power connection piece 205 on the same side; two rows of concave and convex power connection pieces 205 and a row of power connection spring pieces 303 are connected in series with the power supply to turn on the sunken alarm light 203, and the vertical counterweight 2 for automatic vertical correction is adopted to prevent the building from being undetected due to the external skewness, and to increase the comprehensiveness of the external wall flatness detection, and the installation support 1 can By installing a winch on the roof for traction, a comprehensive inspection of the building's exterior walls can be carried out without manual climbing, which is more efficient. A row of swing detection rods 301 can be used to ensure comprehensive inspection, and can automatically fit on the wall for depression detection. The structure is simple and reasonable, and an automatic alarm can be given when the flatness does not meet the standard. This structure can carry out a comprehensive inspection of depressions or protrusions on the wall. This structure adopts a touch alarm method, which is more intuitive and has a simple and reasonable structure. The window edge anti-stuck plate 103 can prevent the structure from being stuck by the window edge. The use of the window edge anti-stuck plate 103 can increase the passability of the structure.

[0036] In the embodiment of the present disclosure, the crack detection component 4 includes: a crack detection sliding column 401 and a crack stop head 4011, the crack detection sliding column 401 is slidably inserted into the end of the swing detection rod 301; the crack detection sliding column 401 is fixedly installed with a crack stop head 4011, and the top end surface of the crack stop head 4011 is perpendicular to the wall; the crack stop head 4011 is used to increase the resistance of the rotating connection shaft 101 after being inserted into the wall crack; the crack detection component 4 also includes: a micro switch 402 and a tension spring 403, the micro switch 402 is fixedly installed inside the swing detection rod 301; the tension spring 403 is sleeved inside the swing detection rod 301; the end of the micro switch 402 is attached to the crack detection sliding column 401; the end of the tension spring 403 is fixedly installed inside the swing detection rod 301, and the other end of the tension spring 403 is fixedly installed on the crack detection sliding column 401; a row of micro switches 402 are electrically connected to the crack alarm light 204 ; By adopting the crack detection part 4, when the flatness detection is performed on the present structure, deeper cracks can be detected. By using the stuck method, the detection is accurate, the detection accuracy can be improved, and the problem of traditional crack detection relying on manual work and easy to miss detection can be prevented. The crack detection part 4 does not affect the normal flatness detection work, and is convenient for the staff to repair or fill the cracks and the sunken positions of the brick joints, which can be more suitable for the brick joint detection work of the brick wall. When the swing detection rod 301 moves, the crack stop head 4011 is attached to the wall surface. The wall surface is relatively smooth, and the friction between the crack stop head 4011 and the tension spring 403 is not enough to lengthen the tension spring 403. If cracks or brick joints appear, the plane on the top of the crack stop head 4011 will be stuck in the cracks or brick joints. At this time, the micro switch 402 loses the extrusion force, and the crack alarm light 204 can be controlled to light up as a prompt. The present structure can perform a more comprehensive detection on the quality of the wall surface.

[0037] In the disclosed embodiment, the skew alarm component 5 includes: a fixed conductive sheet 501, a skew conductive sheet 502 and a skew alarm light 503. The fixed conductive sheet 501 is fixedly mounted on the bottom of another wheel frame 1011; two skew conductive sheets 502 are fixedly mounted on the bottom side of the rotating mounting shell 201; the fixed conductive sheet 501 is located between the two skew conductive sheets 502; the skew alarm light 503 is fixedly mounted on the rotating mounting shell 201; the fixed conductive sheet 501, the skew conductive sheet 502 and the skew alarm light 503 are connected in series with a power supply, and the skew alarm component 5 is used in conjunction with the vertical counterweight 2 to adjust the vertical direction of the wall. The flatness detection part 3 is used to detect the horizontal flatness of the building, and the skew alarm part 5 is used to detect the vertical flatness of the building as a whole. The detection is accurate and intuitive, and can be more suitable for high-rise building detection. If the vertical flatness of the building is skewed, the rotating mounting shell 201 will cause a vertical relative rotation on the rotating connecting shaft 101, and the skew conductive sheet 502 will touch the fixed conductive sheet 501, and the skew alarm light 503 will be powered on and light up to give a prompt.

[0038] In the disclosed embodiment, the negative pressure wall-attached component 6 includes: a wall-attached mounting plate 601 and an air suction hood 602, the wall-attached mounting plate 601 is fixedly mounted on the wheel frame 1011; the air suction hood 602 is fixedly mounted on the bottom of the wall-attached mounting plate 601; the air suction hood 602 is used to assist the negative pressure to fit the wall; the negative pressure wall-attached component 6 also includes: an electric suction pump 603, the electric suction pump 603 is fixedly mounted on the wall-attached mounting plate 601; the electric suction pump 603 is connected to the air suction hood 602; the cleaning component 7 includes: a cleaning steel brush 701 and a shovel plate 702, the cleaning steel brush 701 is fixedly mounted between the two wheel frames 1011 by bolts; steel bristles are arranged on the inner side of the cleaning steel brush 701; a shovel plate 702 is fixedly mounted on the cleaning steel brush 701, and the shovel plate 702 is used to fit the wall for scraping and cleaning, using The negative pressure wall-adhering part 6 can utilize the negative pressure generated by wind to be adsorbed on the wall surface, so that the four rollers 104 roll and adhere to the wall surface, thereby ensuring the accuracy of the flatness detection data and preventing problems such as falling off. The negative pressure adsorption method will not cause damage to the wall surface. The cleaning steel brush 701 and the shovel plate 702 can be used to remove the dripping concrete mortar adhered to the wall surface during construction. At the same time, the wall surface can be swept and brushed to assist in cleaning, thereby reducing the difficulty of cleaning the subsequent installation of the insulation board. At the same time, it also prevents impurities on the wall surface from interfering with the flatness detection of this structure. The structure is simple and reasonable. The adjustment rope 1012 can be used to facilitate workers to pull and adjust the position of this structure on the ground, thereby improving the flexibility of wall flatness detection and preventing the problem of lateral offset that cannot be corrected in time when a row of swing detection rods 301 detects flatness.

[0039] The working principle of this embodiment is as follows: first, the lifting rope 102 is connected to the hoist, and the rotating connecting shaft 101 rises under the traction of the hoist. During the process, the roller 104 rolls on the wall, the electric suction pump 603 is started, and the suction hood 602 generates negative pressure adsorption force, which cooperates with the hoist to make the four rollers 104 roll and move in close contact with the wall. When a row of swing detection rods 301 move upward and become deviated or need to adjust their positions after passing through windows, the adjusting rope 1012 can be pulled in the opposite direction on the ground to correct the deviation. When the wheel frame 1011 is pulled upward, the cleaning steel brush 701 and the shovel plate 702 are driven to remove the concrete dripping mortar and brush it on the wall;

[0040] If there are protrusions or depressions on the wall, the counterweight traction force of the counterweight column 202 must be able to satisfy the rotation of the mounting shell 201 to maintain a vertical state, and will not be disturbed by the squeezing force of the swing spring 302. Under the squeezing of the swing spring 302, the power-connecting spring 303 will adapt to the protrusion or depression. Regardless of whether the rotation direction of the power-connecting spring 303 is upward or downward, a concave and convex power-connecting sheet 205 is provided for fitting and energizing to contact the power-connecting spring 303, so as to realize the power-on alarm of the depression alarm light 203. The window edge anti-stuck plate 103 can use its own inclined structure to slide from the outside of the window edge when passing through the window edge protrusion to prevent jamming. If cracks or brick joints appear on the wall, the plane on the top of the crack stop head 4011 will be stuck in the cracks or brick joints. At this time, the crack stop head 4011 is stationary, and the swing detection rod 301 is still moving upward. At this time, the crack detection sliding column 401 slides outward on the swing detection rod 301, lengthening the tension spring 403. At this time, the microswitch 402 loses the extrusion force, and the crack alarm light 204 can be controlled to light up as a prompt; under the traction of the counterweight column 202, the rotating mounting shell 201 remains in a vertical state. If the vertical flatness of the building is skewed, the rotating mounting shell 201 will undergo a vertical relative rotation on the rotating connecting shaft 101, which can drive the skewed conductive sheet 502 to deviate. Once the offset exceeds the standard, the skewed conductive sheet 502 will touch the fixed conductive sheet 501, and the skew alarm light 503 can be powered on and light up as a prompt.

[0041] In this article, there are a few points to note:

[0042] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0043] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0044] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A flatness detection device for building construction, comprising a mounting support (1), wherein a vertical counterweight (2) is mounted on the mounting support (1); characterized in that: The vertical counterweight (2) is used to adjust the self-verticality; a row of flatness detection members (3) is installed on the vertical counterweight (2); the row of flatness detection members (3) is used to detect the flatness of the exterior wall; A row of the flatness detection members (3) are respectively provided with crack detection members (4); the crack detection members (4) are used to detect cracks on the wall surface; A skew alarm component (5) is installed on the installation support component (1); the skew alarm component (5) is installed on the vertical counterweight component (2); A negative pressure wall-adhering member (6) is installed on the installation support member (1); a cleaning member (7) is installed on the installation support member (1), and the cleaning member (7) is used to clean concrete attached to the wall surface; The mounting support (1) comprises: a rotating connecting shaft (101), a wheel frame (1011) and an adjusting rope (1012); the wheel frames (1011) are fixedly mounted on both ends of the rotating connecting shaft (101); the adjusting rope (1012) is fixedly mounted on the bottom of the left wheel frame (1011); and the adjusting rope (1012) is used for pulling and adjusting the position of the rotating connecting shaft (101).

2. A flatness detection device for construction according to claim 1, characterized in that: The mounting support (1) further comprises: a lifting rope (102), a window edge anti-stuck plate (103) and a roller (104); the lifting rope (102) is fixedly mounted on the rotating connection shaft (101); the window edge anti-stuck plate (103) is fixedly mounted on the two wheel frames (1011); the lifting rope (102) is used for externally connecting a winch; the two wheel frames (1011) are respectively rotatably mounted with rollers (104); the rollers (104) are used for rolling to fit the wall surface.

3. A flatness detection device for building construction according to claim 1, characterized in that: The vertical counterweight (2) comprises: a rotatable mounting shell (201), a counterweight column (202), a recessed warning light (203), a crack warning light (204) and a concave-convex electrical connection sheet (205); the rotatable mounting shell (201) is rotatably mounted on a rotating connection shaft (101); and the counterweight column (202) is fixedly mounted on the bottom of the rotatable mounting shell (201).

4. A flatness detection device for building construction according to claim 3, characterized in that: The vertical counterweight (2) further comprises: a recessed warning light (203) fixedly mounted on the side of the rotating mounting shell (201); a crack warning light (204) fixedly mounted on the rotating mounting shell (201); and two concave and convex electrical connection plates (205) fixedly mounted on the inner side of the rotating mounting shell (201); the two concave and convex electrical connection plates (205) are used to control the recessed warning light (203) to light up and give an alarm.

5. A flatness detection device for building construction according to claim 4, characterized in that: The flatness detection member (3) comprises: a swing detection rod (301), a swing spring (302) and an electrical connection spring (303); the swing detection rod (301) is rotatably mounted on a rotatable mounting shell (201); the swing spring (302) is fixedly mounted on the swing detection rod (301), and the end of the swing spring (302) is fixedly mounted on the inner side of the rotatable mounting shell (201); the electrical connection spring (303) is fixedly mounted on the swing detection rod (301), and the electrical connection spring (303) is an elastic structure.

6. A flatness detection device for building construction according to claim 5, characterized in that: The flatness detection member (3) further comprises: the electrical connection springs (303) are aligned with the concave and convex electrical connection sheets (205) on the same side; a row of the electrical connection springs (303) is located between two rows of concave and convex electrical connection sheets (205); and the two rows of concave and convex electrical connection sheets (205) and a row of electrical connection springs (303) are connected in series to a power supply to turn on the concave warning light (203).

7. A flatness detection device for building construction according to claim 1, characterized in that: The crack detection member (4) comprises: a crack detection sliding column (401) and a crack stop head (4011); the crack detection sliding column (401) is slidably plugged into the end of the swing detection rod (301); the crack stop head (4011) is fixedly mounted on the crack detection sliding column (401), and the top end surface of the crack stop head (4011) is perpendicular to the wall surface; the crack stop head (4011) is used to increase the traction resistance of the rotating connection shaft (101) after being inserted into the wall crack.

8. A flatness detection device for building construction according to claim 7, characterized in that: The crack detection component (4) further comprises: a micro switch (402) and a tension spring (403); the micro switch (402) is fixedly mounted inside the swing detection rod (301); the tension spring (403) is sleeved inside the swing detection rod (301); the end of the micro switch (402) is attached to the crack detection sliding column (401); the end of the tension spring (403) is fixedly mounted inside the swing detection rod (301), and the other end of the tension spring (403) is fixedly mounted on the crack detection sliding column (401); a row of the micro switches (402) is electrically connected to the crack alarm lamp (204).

9. A flatness detection device for building construction according to claim 1, characterized in that: The skew alarm component (5) comprises: a fixed conductive sheet (501), a skew conductive sheet (502) and a skew alarm light (503); the fixed conductive sheet (501) is fixedly mounted on the bottom of another wheel frame (1011); two skew conductive sheets (502) are fixedly mounted on the bottom side of the rotating mounting shell (201); the fixed conductive sheet (501) is located between the two skew conductive sheets (502); the skew alarm light (503) is fixedly mounted on the rotating mounting shell (201); and the fixed conductive sheet (501), the skew conductive sheet (502) and the skew alarm light (503) are connected in series to a power supply.

Images