Building construction outer wall perpendicularity detection device

Abstract

The invention discloses a building construction outer wall perpendicularity detection device which comprises a shell, an electric telescopic rod is fixedly connected to the bottom of an inner cavity of the shell, a connecting plate is fixedly connected to the top of the electric telescopic rod, bolts are in threaded connection with the two sides of an inner cavity of the connecting plate, and a bottom plate is movably connected to the bottoms of the bolts. Universal wheels are movably connected to the four corners of the bottom of the shell, and a horizontal ruler is movably connected to the left rear end of the top of the shell. By arranging the shell, the electric telescopic rod, the connecting plate, the bolt, the bottom plate, universal wheels and a horizontal ruler, the shell can be conveniently adjusted to be in a horizontal state, so that the detection process is not influenced by self factors, and the detection accuracy can be improved; and the detection height can be conveniently adjusted, so that the verticality of the wall surface can be detected at different heights, and the detection accuracy is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, in particular to a device for detecting the verticality of an exterior wall of a building construction. Background Art

[0002] A construction project refers to an engineering entity formed through the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. A construction project is the planning, investigation, design, construction, completion and other technical work and completed engineering entities for the construction, reconstruction or expansion of buildings and ancillary structures and facilities, as well as the installation of supporting lines, pipelines, and equipment. During the construction process, it is necessary to test the verticality of the building's exterior walls.

[0003] The existing detection device is not convenient to adjust the horizontality during use. When the device itself is tilted, it will affect the detection result. It is also not convenient to detect the height. At the same time, the detection method is single. If the device is damaged and cannot be discovered in time, it will also affect the accuracy of the detection and cannot meet the use requirements. For this reason, we propose a verticality detection device for the exterior wall of a building construction. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a verticality detection device for the exterior wall of a building construction, which has the advantage of accurate detection and solves the problems that the existing detection devices are inconvenient to adjust the horizontality during use, the tilt of the device itself will affect the detection result, and it is inconvenient to detect the height. At the same time, the detection method is single. After the device is damaged, if it cannot be discovered in time, it will also affect the accuracy of the detection and cannot meet the use requirements.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for detecting the verticality of exterior walls of building construction, comprising a shell, an electric telescopic rod is fixedly connected to the bottom of the inner cavity of the shell, a connecting plate is fixedly connected to the top of the electric telescopic rod, bolts are threadedly connected to both sides of the inner cavity of the connecting plate, the bottom of the bolts is movably connected to a bottom plate, universal wheels are movably connected to the four corners of the bottom of the shell, and a level ruler is movably connected to the left rear end of the top of the shell.

[0006] Preferably, a fixing plate is fixedly connected to the right front end of the top of the shell, a first motor is fixedly connected to the top of the front side of the fixing plate, a crank shaft is fixedly connected to the output end of the first motor, a connecting rod is movably connected to the surface of the crank shaft, and an adjusting rod is fixedly connected to one side of the connecting rod.

[0007] Preferably, the top of the adjusting rod is fixedly connected to a vertical plate, the bottom of the front side of the vertical plate is fixedly connected to a second motor, the output end of the second motor is fixedly connected to a screw rod, the surface of the screw rod is threadedly connected to a threaded barrel, the rear side of the threaded barrel is fixedly connected to a rectangular plate, the left side of the back side of the rectangular plate is fixedly connected to a pressure sensor, one side of the pressure sensor contacts the adjusting plate, one side of the adjusting plate is fixedly connected to a first spring, one side of the first spring is fixedly connected to a fixing seat, one side of the fixing seat is fixedly connected to a connecting column, an elastic telescopic rod is fixedly connected to the upper right corner of the back side of the rectangular plate, one side of the elastic telescopic rod is movably connected to a movable seat, one side of the movable seat is fixedly connected to a connecting frame, one side of the connecting frame is fixedly connected to a second spring, one side of the second spring is fixedly connected to the rectangular plate, a protractor is fixedly connected to the right side of the connecting frame, one side of the protractor is fixedly connected to a fixing column, the surface of the fixing column is connected to a connecting rope through a movable sleeve, and the bottom of the connecting rope is fixedly connected to a plumb bob.

[0008] Preferably, a rotating shaft is fixedly connected to the bottom of the level, and the bottom of the rotating shaft is movably connected to the housing via a bearing.

[0009] Preferably, both sides of the top of the adjusting rod are fixedly connected with fixing rods, one side of the fixing rod is fixedly connected with a telescopic column, and the bottom of the telescopic column is fixedly connected to the shell.

[0010] Preferably, a rectangular rod is fixedly connected to one side of the fixing seat, and the surface of the rectangular rod is slidably connected to the rectangular plate, and the inner cavity of the adjustment plate is slidably connected to the rectangular rod.

[0011] Preferably, a telescopic column is fixedly connected to the top of the back side of the vertical plate, and one side of the telescopic column is fixedly connected to the rectangular plate.

[0012] Preferably, a buzzer, a PLC controller and a battery are fixedly connected to the front side of the shell in sequence from left to right, and movable grooves are provided on both sides of the shell.

[0013] Preferably, the left side of the rectangular plate is fixedly connected to a box body, the top of the front side of the box body is fixedly connected to a third motor, the output end of the third motor is fixedly connected to a driving sprocket, the surface of the driving sprocket is meshed with a chain, the bottom of the inner surface of the chain is meshed with a driven sprocket, the left side of the chain is fixedly connected to a rectangular block, one side of the rectangular block is fixedly connected to a connecting seat, one side of the connecting seat is fixedly connected to a motor, the output end of the motor is fixedly connected to an L-shaped rod, and the back side of the L-shaped rod is fixedly connected to bristles.

[0014] Compared with the prior art, the present invention provides a device for detecting the verticality of an exterior wall of a building, which has the following beneficial effects:

[0015] 1. The present invention provides a housing, an electric telescopic rod, a connecting plate, bolts, a bottom plate, a universal wheel and a level ruler, so that the housing can be easily adjusted to a horizontal state, so that the detection process will not be affected by its own factors, thereby improving the accuracy of the detection.

[0016] 2. The present invention facilitates the adjustment of the detection height by setting a fixed plate, a first motor, a crank shaft, a connecting rod and an adjusting rod, so that the verticality of the wall can be detected at different heights, further improving the accuracy of the detection.

[0017] 3. The present invention facilitates double detection by arranging a vertical plate, a second motor, a screw rod, a threaded cylinder, a rectangular plate, a pressure sensor, an adjustment plate, a first spring, a fixed seat, a connecting column, an elastic telescopic rod, a movable seat, a connecting frame, a second spring, a protractor, a fixed column, a connecting rope and a plumb bob, so as to avoid the failure of the device to be timely known during a single detection process, which will also affect the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of a local three-dimensional structure of the present invention in a first viewing angle state;

[0020] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the present invention in a second viewing angle state;

[0021] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the present invention in a third viewing angle state;

[0022] Figure 5 It is a schematic diagram of a partial three-dimensional structure in a fourth viewing angle state of the present invention;

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the shell of the present invention;

[0024] Figure 7 This is a schematic diagram of the enlarged structure of location A of the present invention;

[0025] Figure 8 It is a schematic diagram of the cross-sectional structure of the box body of the present invention.

[0026] In the figure: 1, housing; 2, electric telescopic rod; 3, connecting plate; 4, bolt; 5, bottom plate; 6, universal wheel; 7, level ruler; 8, fixing plate; 9, first motor; 10, crank shaft; 11, connecting rod; 12, adjusting rod; 13, vertical plate; 14, second motor; 15, screw rod; 16, threaded cylinder; 17, rectangular plate; 18, pressure sensor; 19, adjusting plate; 20, first spring; 21, fixing seat; 22, connecting column; 23. Elastic telescopic rod; 24. Movable seat; 25. Connecting frame; 26. Second spring; 27. Protractor; 28. Fixed column; 29. ​​Connecting rope; 30. Bottom line; 31. Buzzer; 32. PLC controller; 33. Battery; 34. Box; 35. Third motor; 36. Driving sprocket; 37. Chain; 38. Driven sprocket; 39. Rectangular block; 40. Connecting seat; 41. Motor; 42. L-shaped rod; 43. Bristles. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments 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.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Embodiment 1:

[0030] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the present invention provides a device for detecting the verticality of an exterior wall of a building, comprising a shell 1, an electric telescopic rod 2 is fixedly connected to the bottom of the inner cavity of the shell 1, a connecting plate 3 is fixedly connected to the top of the electric telescopic rod 2, bolts 4 are threadedly connected to both sides of the inner cavity of the connecting plate 3, a bottom plate 5 is movably connected to the bottom of the bolts 4, universal wheels 6 are movably connected to the four corners of the bottom of the shell 1, a level ruler 7 is movably connected to the left rear end of the top of the shell 1, a rotating shaft is fixedly connected to the bottom of the level ruler 7, and the bottom of the rotating shaft is movably connected to the shell 1 through a bearing.

[0031] The specific function of this technical solution is as follows: the device is moved to the working position, and then the electric telescopic rod 2 is started, the electric telescopic rod 2 drives the connecting plate 3 to move, the connecting plate 3 drives the bolt 4 to move, and the bolt 4 drives the bottom plate 5 to move. After the bottom of the bottom plate 5 is lower than the bottom of the universal wheel 6, the level ruler 7 can be rotated to check whether the top of the shell 1 is in a horizontal state. When it is found to be in a tilted state, the staff can rotate the corresponding bolt 4, and the bolt 4 will drive the bottom plate 5 to move, thereby facilitating the adjustment of the top of the shell 1 to a horizontal state.

[0032] Embodiment 2:

[0033] Based on the first embodiment, the present invention is as follows Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it is disclosed that a fixing plate 8 is fixedly connected to the right front end of the top of the shell 1, a first motor 9 is fixedly connected to the top of the front side of the fixing plate 8, a crank shaft 10 is fixedly connected to the output end of the first motor 9, a connecting rod 11 is movably connected to the surface of the crank shaft 10, an adjusting rod 12 is fixedly connected to one side of the connecting rod 11, both sides of the top of the adjusting rod 12 are fixedly connected to fixing rods, and a telescopic column is fixedly connected to one side of the fixing rod, and the bottom of the telescopic column is fixedly connected to the shell 1.

[0034] The specific function of this technical solution is as follows: start the first motor 9, drive the crank shaft 10 to rotate through the first motor 9, the crank shaft 10 drives the connecting rod 11 to move, and the connecting rod 11 drives the adjusting rod 12 to move, so as to facilitate the adjustment of the working height and facilitate the detection of the wall at different heights.

[0035] Embodiment three:

[0036] Based on the first embodiment, the present invention is as follows Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, the top of the adjusting rod 12 is fixedly connected to a vertical plate 13, the bottom of the front side of the vertical plate 13 is fixedly connected to a second motor 14, the output end of the second motor 14 is fixedly connected to a screw rod 15, the surface of the screw rod 15 is threadedly connected to a threaded cylinder 16, the rear side of the threaded cylinder 16 is fixedly connected to a rectangular plate 17, the left side of the back side of the rectangular plate 17 is fixedly connected to a pressure sensor 18, one side of the pressure sensor 18 contacts an adjusting plate 19, one side of the adjusting plate 19 is fixedly connected to a first spring 20, one side of the first spring 20 is fixedly connected to a fixing seat 21, one side of the fixing seat 21 is fixedly connected to a connecting column 22, the upper right corner of the back side of the rectangular plate 17 is fixedly connected to an elastic telescopic rod 23, one side of the elastic telescopic rod 23 is movably connected to a movable seat 24, and one side of the movable seat 24 is fixedly connected to a connecting column 23. A connecting frame 25, one side of the connecting frame 25 is fixedly connected with a second spring 26, one side of the second spring 26 is fixedly connected to the rectangular plate 17, a protractor 27 is fixedly connected to the right side of the connecting frame 25, one side of the protractor 27 is fixedly connected with a fixed column 28, the surface of the fixed column 28 is connected with a connecting rope 29 through a movable sleeve, the bottom of the connecting rope 29 is fixedly connected with a plumb bob 30, one side of the fixed seat 21 is fixedly connected with a rectangular rod, and the surface of the rectangular rod is slidably connected to the rectangular plate 17, the inner cavity of the adjustment plate 19 is slidably connected to the rectangular rod, the top of the back side of the vertical plate 13 is fixedly connected with a telescopic column, and one side of the telescopic column is fixedly connected to the rectangular plate 17, the front side of the shell 1 is fixedly connected with a buzzer 31, a PLC controller 32 and a battery 33 from left to right, and movable grooves are provided on both sides of the shell 1.

[0037] The specific function of the technical solution is as follows: the pressure value is then set by the PLC controller 32, and then the second motor 14 is started, the second motor 14 drives the screw rod 15 to rotate, the screw rod 15 drives the threaded barrel 16 to move, and the threaded barrel 16 drives the rectangular plate 17 to move, so that the connecting column 22 contacts the wall surface, and as the threaded barrel 16 moves, the connecting column 22 drives the fixing seat 21 to move, and the fixing seat 21 drives the first spring 20 to deform, thereby squeezing the pressure sensor 18 through the adjustment plate 19. After a pressure sensor 18 detects that the pressure value is the same as the set value, the PLC The controller 32 will control the second motor 14 to stop working. At this time, the value difference detected by the two pressure sensors 18 will be compared. When it is within the specified range, it means that the verticality of the wall meets the standard. When it is outside the specified range, the PLC controller 32 will control the buzzer 31 to sound an alarm to remind the staff. At the same time, the elastic telescopic rod 23 and the second spring 26 will also deform, so that the connecting frame 25 can be in close contact with the wall. At this time, by observing the positional relationship between the connecting rope 29 and the protractor 27, it can also be determined whether the verticality of the wall meets the standard, so that double detection can be performed to make the detection accurate.

[0038] Embodiment 4:

[0039] Based on the first embodiment, the present invention is as follows Figure 1 and Figure 8 As shown, it is disclosed that the left side of the rectangular plate 17 is fixedly connected to a box body 34, the top of the front side of the box body 34 is fixedly connected to a third motor 35, the output end of the third motor 35 is fixedly connected to a driving sprocket 36, the surface of the driving sprocket 36 is meshed with a chain 37, the bottom of the inner surface of the chain 37 is meshed with a driven sprocket 38, the left side of the chain 37 is fixedly connected to a rectangular block 39, one side of the rectangular block 39 is fixedly connected to a connecting seat 40, one side of the connecting seat 40 is fixedly connected to a motor 41, the output end of the motor 41 is fixedly connected to an L-shaped rod 42, and the back side of the L-shaped rod 42 is fixedly connected to bristles 43.

[0040] The specific function of this technical solution is as follows: before detection, the bristles 43 are adjusted to contact the wall, and then the third motor 35 is started, the third motor 35 drives the active sprocket 36 to rotate, the active sprocket 36 drives the chain 37 to rotate, the chain 37 drives the rectangular block 39 to move, the rectangular block 39 drives the connecting seat 40 to move, the connecting seat 40 drives the motor 41 to move, the motor 41 drives the L-shaped rod 42 to move, the L-shaped rod 42 drives the bristles 43 to move, so as to clean the wall and prevent debris attached to the wall from affecting the detection results.

[0041] Working principle: Move the device to the working position, then start the electric telescopic rod 2, the electric telescopic rod 2 drives the connecting plate 3 to move, the connecting plate 3 drives the bolt 4 to move, the bolt 4 drives the bottom plate 5 to move, after the bottom of the bottom plate 5 is lower than the bottom of the universal wheel 6, you can turn the level ruler 7 to check whether the top of the shell 1 is in a horizontal state. When it is found to be in a tilted state, the staff can turn the corresponding bolt 4, the bolt 4 will drive the bottom plate 5 to move, so as to facilitate the adjustment of the top of the shell 1 to a horizontal state, start the first motor 9, and drive the crank shaft 10 to rotate through the first motor 9, and the crank shaft 10 The connecting rod 11 is driven to move, and the connecting rod 11 drives the adjusting rod 12 to move, so as to facilitate the adjustment of the working height and to facilitate the detection of the wall at different heights. Then, the pressure value is set by the PLC controller 32, and then the second motor 14 is started. The second motor 14 drives the screw rod 15 to rotate, and the screw rod 15 drives the threaded cylinder 16 to move, and the threaded cylinder 16 drives the rectangular plate 17 to move, so that the connecting column 22 contacts the wall, and as the threaded cylinder 16 moves, the connecting column 22 drives the fixing seat 21 to move, and the fixing seat 21 drives the first spring 20 to deform, so as to adjust the wall through the adjusting plate 1 9 squeezes the pressure sensors 18. When one pressure sensor 18 detects that the pressure value is the same as the set value, the PLC controller 32 controls the second motor 14 to stop working. At this time, the value difference detected by the two pressure sensors 18 is compared. If it is within the specified range, it means that the verticality of the wall meets the standard. If it is outside the specified range, the PLC controller 32 controls the buzzer 31 to sound an alarm to remind the staff. At the same time, the elastic telescopic rod 23 and the second spring 26 will also deform, so that the connecting frame 25 can be in close contact with the wall. At this time, observe the connection rope 29 and the protractor 2 7, it can also be determined whether the verticality of the wall is up to standard, so that double detection can be performed to make the detection accurate. Before the detection, the bristles 43 are adjusted to contact with the wall, and then the third motor 35 is started, the third motor 35 drives the active sprocket 36 to rotate, the active sprocket 36 drives the chain 37 to rotate, the chain 37 drives the rectangular block 39 to move, the rectangular block 39 drives the connecting seat 40 to move, the connecting seat 40 drives the motor 41 to move, the motor 41 drives the L-shaped rod 42 to move, the L-shaped rod 42 drives the bristles 43 to move, the wall is cleaned, and the debris attached to the wall is prevented from affecting the detection result.

[0042] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0043] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A device for detecting the verticality of an exterior wall of a building, comprising a housing (1), characterized in that: The bottom of the inner cavity of the shell (1) is fixedly connected to an electric telescopic rod (2), the top of the electric telescopic rod (2) is fixedly connected to a connecting plate (3), both sides of the inner cavity of the connecting plate (3) are threadedly connected to bolts (4), the bottom of the bolts (4) is movably connected to a bottom plate (5), the four corners of the bottom of the shell (1) are movably connected to universal wheels (6), and the left rear end of the top of the shell (1) is movably connected to a level ruler (7).

2. A device for detecting verticality of exterior walls of a building according to claim 1, characterized in that: A fixing plate (8) is fixedly connected to the right front end of the top of the shell (1), a first motor (9) is fixedly connected to the top of the front face of the fixing plate (8), an output end of the first motor (9) is fixedly connected to a crankshaft (10), a connecting rod (11) is movably connected to the surface of the crankshaft (10), and an adjusting rod (12) is fixedly connected to one side of the connecting rod (11).

3. A device for detecting verticality of exterior walls of a building according to claim 2, characterized in that: The top of the adjusting rod (12) is fixedly connected to a vertical plate (13), the bottom of the front side of the vertical plate (13) is fixedly connected to a second motor (14), the output end of the second motor (14) is fixedly connected to a screw rod (15), the surface of the screw rod (15) is threadedly connected to a threaded cylinder (16), the rear side of the threaded cylinder (16) is fixedly connected to a rectangular plate (17), the left side of the back side of the rectangular plate (17) is fixedly connected to a pressure sensor (18), one side of the pressure sensor (18) contacts an adjusting plate (19), one side of the adjusting plate (19) is fixedly connected to a first spring (20), one side of the first spring (20) is fixedly connected to a fixing seat (21), one side of the fixing seat (21) is fixedly connected to A connecting column (22) is connected, an elastic telescopic rod (23) is fixedly connected to the upper right corner of the back of the rectangular plate (17), one side of the elastic telescopic rod (23) is movably connected to a movable seat (24), one side of the movable seat (24) is fixedly connected to a connecting frame (25), one side of the connecting frame (25) is fixedly connected to a second spring (26), one side of the second spring (26) is fixedly connected to the rectangular plate (17), the right side of the connecting frame (25) is fixedly connected to a protractor (27), one side of the protractor (27) is fixedly connected to a fixed column (28), the surface of the fixed column (28) is connected to a connecting rope (29) through a movable sleeve, and the bottom of the connecting rope (29) is fixedly connected to a plumb bob (30).

4. A device for detecting verticality of exterior walls of a building according to claim 1, characterized in that: The bottom of the level ruler (7) is fixedly connected to a rotating shaft, and the bottom of the rotating shaft is movably connected to the housing (1) via a bearing.

5. The device for detecting verticality of exterior walls of a building according to claim 2, characterized in that: Both sides of the top of the adjustment rod (12) are fixedly connected to fixed rods, one side of the fixed rod is fixedly connected to a telescopic column, and the bottom of the telescopic column is fixedly connected to the housing (1).

6. A device for detecting verticality of exterior walls of a building according to claim 3, characterized in that: A rectangular rod is fixedly connected to one side of the fixing seat (21), and the surface of the rectangular rod is slidably connected to the rectangular plate (17), and the inner cavity of the adjustment plate (19) is slidably connected to the rectangular rod.

7. The device for detecting verticality of exterior walls of a building according to claim 3, characterized in that: A telescopic column is fixedly connected to the top of the back side of the vertical plate (13), and one side of the telescopic column is fixedly connected to the rectangular plate (17).

8. The device for detecting verticality of exterior walls of a building according to claim 1, characterized in that: A buzzer (31), a PLC controller (32) and a storage battery (33) are fixedly connected to the front of the housing (1) in sequence from left to right, and movable grooves are provided on both sides of the housing (1).

9. The device for detecting verticality of exterior walls of a building according to claim 1, characterized in that: The left side of the rectangular plate (17) is fixedly connected to a box body (34), the top of the front side of the box body (34) is fixedly connected to a third motor (35), the output end of the third motor (35) is fixedly connected to a driving sprocket (36), the surface of the driving sprocket (36) is meshed with a chain (37), the bottom of the inner surface of the chain (37) is meshed with a driven sprocket (38), the left side of the chain (37) is fixedly connected to a rectangular block (39), one side of the rectangular block (39) is fixedly connected to a connecting seat (40), one side of the connecting seat (40) is fixedly connected to a motor (41), the output end of the motor (41) is fixedly connected to an L-shaped rod (42), and the back side of the L-shaped rod (42) is fixedly connected to bristles (43).

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