A leveling device for ALC board surface plastering construction

Abstract

This invention relates to the field of wall leveling technology, specifically to a leveling device for plastering ALC board surfaces. The device includes a scraper, with a flatness detection device movably connected to the outer wall of the scraper. A mounting frame is fixedly connected to the outer wall of the scraper, and a connecting rod is rotatably connected to the bottom of the mounting frame. A slide block is rotatably connected to the lower end of the connecting rod, and an inner slide rail is movably connected to the bottom of the slide block, allowing the slide block to slide along the inner slide rail. This invention utilizes the connecting rod, whose length remains constant. When the telescopic push rod extends and the inner slide rail approaches the wall, the scraper is positioned at the upper part of the wall; when the inner slide rail moves away from the wall, the scraper is positioned at the lower part. Due to the connecting rod, the mounting frame and slide block remain parallel under the constraint of two support bars. The scraper is fixedly connected to the mounting frame, thus maintaining a vertical position, enabling the scraper to level various parts of the wall.

Description

Technical Field

[0001] This invention relates to the field of wall leveling technology, and in particular to a leveling device for plastering ALC board surfaces. Background Technology

[0002] With the continuous advancement of wall material innovation, ALC partition boards have been widely used in construction projects. As a new type of building wall material with lightweight, sound insulation, and thermal insulation properties, the board has a promising future. The construction process of ALC partition boards generally involves the following steps: removing floating dust from the wall surface → watering the base layer → making mortar spots → hanging mesh → roughening the wall surface with 1:1 cement mortar or construction adhesive → applying the base coat → applying the intermediate coat → leveling and correcting deviations → applying the top coat. Leveling is a very important step to ensure the smoothness of the wall surface after construction.

[0003] In existing technologies, leveling is usually done manually by repeatedly pushing and pulling a straightedge against the wall to scrape off protruding parts and filling in any depressions. The quality of leveling relies entirely on the experience of the construction workers, which often leads to omissions and errors, resulting in a decline in construction quality. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the background art by providing a leveling device for plastering the surface of ALC boards.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A leveling device for plastering ALC board surfaces includes a scraper. A flatness detection device is movably connected to the outer wall of the scraper. A mounting bracket is fixedly connected to the outer wall of the scraper. A connecting rod is rotatably connected to the bottom of the mounting bracket. A slide block is rotatably connected to the lower end of the connecting rod. An inner slide rail is movably connected to the bottom of the slide block, allowing the slide block to slide along the inner slide rail. An outer slide rail is located at the bottom of the inner slide rail, inside which the inner slide rail is located. Multiple parallel first limiting rails are fixedly connected to the inner wall of the outer slide rail. A slider that slidably connects to the first limiting rails is fixedly connected to the bottom of the inner slide rail. A telescopic push rod is fixedly connected to the outer wall of the outer slide rail, with its extension end connected to the inner slide rail. The outer wall of the slide rail is fixedly connected, and the outer wall of the slide rail is fixedly connected with multiple mounting ears; the connecting rod includes two parallel support bars, the lower ends of the two support bars are rotatably connected to the top of the slide block; the mounting bracket includes a first connecting bar and a second connecting bar, the upper end of the support bar is rotatably connected to the first connecting bar and the second connecting bar through a set shaft, the second connecting bar is equipped with a locking structure, the first connecting bar and the second connecting bar are both parallel to the upper surface of the slide block, a connecting plate is fixedly connected between the first connecting bar and the second connecting bar, the outer wall of the connecting plate is fixedly connected to a mounting plate parallel to the upper surface of the slide block, and the end of the mounting plate away from the connecting plate is fixedly connected to the outer wall of the scraper.

[0007] Furthermore, an ink reservoir is fixedly connected to the outer wall of the connecting rod, a pump body is fixedly connected to the bottom of the ink reservoir, and a connecting pipe is fixedly connected to the output end of the pump body.

[0008] Furthermore, the flatness detection device includes a tank, a roller brush is rotatably connected inside the tank, a sponge strip is fixedly connected to the inner wall of the tank and the sponge strip is in contact with the roller brush, a V-shaped nozzle is fixedly connected to the outer wall of the tank and the V-shaped nozzle is connected to the inside of the tank, multiple branch pipes are installed on the outer wall of the connecting pipe, the branch pipes pass through the tank and extend into the inside of the sponge strip, and a motor for driving the roller brush to rotate is fixedly connected to the end of the tank.

[0009] Furthermore, a base is fixedly connected to the outer wall of the tank, and a plurality of parallel second limiting tracks are fixedly connected to the outer wall of the scraper. A slider that is slidably connected to the second limiting tracks is fixedly connected to the outer wall of the base.

[0010] Furthermore, a handle is fixedly connected to the outer wall of the support bar, and multiple reinforcing bars parallel to the upper surface of the slide are rotatably connected between the two support bars.

[0011] Furthermore, the second connecting strip has a main chamber and two auxiliary chambers inside. The two auxiliary chambers are located on both sides of the main chamber. One end of each auxiliary chamber is connected to the interior of the main chamber, and the other end of each auxiliary chamber extends to the shaft mounted on the mounting bracket.

[0012] Furthermore, the locking structure includes a knob with an external thread on its central rod. A threaded top block is slidably connected inside the main chamber. The center of the threaded top block is threadedly connected to the central rod of the knob. A slanted groove is formed at the bottom outer edge of the threaded top block. A top rod is slidably connected to the inner side of each secondary chamber. A spring is sleeved on the outside of the top rod. One end of the spring is fixedly connected to the inner wall of the secondary chamber, and the other end of the spring is fixedly connected to the top rod. A slanted angle is formed on the side of the top rod near the threaded top block, which abuts against the threaded top block. An arc-shaped groove is formed on the side of the top rod away from the slanted angle.

[0013] Furthermore, the inner wall of the main chamber is fixedly connected with a plurality of limiting posts parallel to the central rod on the knob, and the inside of the threaded top block is provided with a sliding hole that is slidably connected to the limiting posts.

[0014] Compared with existing technologies, the present invention has the following advantages:

[0015] 1. With the connecting rod in place, since the length of the connecting rod remains constant, when the telescopic push rod extends and the inner slide rail is close to the wall, the scraper is located at the upper part of the wall. When the inner slide rail is away from the wall, the scraper is located at the lower part of the wall. Due to the setting of the connecting rod, the mounting bracket and the slide block always remain parallel under the limit of the two support bars. The scraper is fixedly connected to the mounting bracket, so the scraper always remains vertical, allowing the scraper to level various parts of the wall.

[0016] 2. By using a flatness detection device, the V-shaped nozzle is brought close to the wall. Then, the roller brush is controlled to rotate forward and backward. The ink on the roller brush will be thrown out along the opening of the V-shaped nozzle under the action of centrifugal force. The opening of the V-shaped nozzle gradually becomes larger. When the V-shaped nozzle is close to the wall, a narrower line will appear. In places with depressions or pits, a wider line will appear, making the difference between flat and uneven areas obvious, and making it easier for people to identify whether it is flat.

[0017] 3. Through the locking structure, when it is necessary to fix the angle of the support bar, by turning the knob, the threaded top block moves towards the connecting plate due to the limiting post. The inclined groove of the threaded top block will abut against the inclined angle on the top rod, pushing the top rod towards the center rod, so that the arc groove at the end of the top rod will press against the center rod, making the center rod unable to rotate relative to the second connecting bar, thereby limiting the angle of the support bar and ensuring the stability of the wall leveling. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention from another perspective;

[0020] Figure 3 This is a side view of the present invention;

[0021] Figure 4 This is the invention Figure 3 A cross-sectional view of the EE line;

[0022] Figure 5 This is the invention Figure 1 Enlarged view of the structure of A in the middle;

[0023] Figure 6 This is the invention Figure 1 Enlarged view of the structure of B in the middle;

[0024] Figure 7 This is the invention Figure 1 Enlarged view of the structure of C in the middle;

[0025] Figure 8 This is the invention Figure 2 Enlarged view of the structure of D in the middle;

[0026] Figure 9 This is a cross-sectional view of the mounting bracket of the present invention;

[0027] Figure 10 This is the invention Figure 9 Enlarged view of the structure of F in the middle.

[0028] In the diagram: 1. Scraper blade; 2. Flatness detection device; 3. Mounting bracket; 4. Connecting rod; 5. Slide seat; 6. Inner slide rail; 7. Outer slide rail; 8. First limit rail; 9. Telescopic push rod; 10. Support bar; 11. First connecting bar; 12. Connecting plate; 13. Mounting plate; 14. Second connecting bar; 15. Locking structure; 16. Ink reservoir; 17. Pump body; 18. Connecting pipe; 19. Base; 20. Tank body; 21. Second limit rail; 22. V-shaped printhead; 23. Roller brush; 24. Sponge strip; 25. Handle; 26. Reinforcing strip; 27. Knob; 28. Main chamber; 29. ​​Threaded top block; 30. Secondary chamber; 31. Top rod; 32. Spring; 33. Motor; 34. Mounting ear; 35. Limiting post. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Reference Figures 1-10 A leveling device for plastering ALC board surfaces includes a scraper 1, a flatness detection device 2 movably connected to the outer wall of the scraper 1, a mounting frame 3 fixedly connected to the outer wall of the scraper 1, a connecting rod 4 rotatably connected to the bottom of the mounting frame 3, a slide block 5 rotatably connected to the lower end of the connecting rod 4, an inner slide rail 6 movably connected to the bottom of the slide block 5, the slide block 5 being able to slide along the inner slide rail 6, an outer slide rail 7 provided at the bottom of the inner slide rail 6, the inner slide rail 6 being located inside the outer slide rail 7, a plurality of parallel first limiting rails 8 fixedly connected to the inner wall of the outer slide rail 7, a slider slidably connected to the bottom of the inner slide rail 6, and a telescopic push rod 9 fixedly connected to the outer wall of the outer slide rail 7, the extension end of the telescopic push rod 9 being fixedly connected to the outer wall of the inner slide rail 6, the outer slide... The outer wall of the rail 7 is fixedly connected with multiple mounting ears 34; the connecting rod 4 includes two parallel support bars 10, the lower ends of which are rotatably connected to the top of the slide block 5; the mounting frame 3 includes a first connecting bar 11 and a second connecting bar 14, the upper ends of the support bars 10 are rotatably connected to the first connecting bar 11 and the second connecting bar 14 through a set shaft, the second connecting bar 14 is equipped with a locking structure 15, the first connecting bar 11 and the second connecting bar 14 are both parallel to the upper surface of the slide block 5, a connecting plate 12 is fixedly connected between the first connecting bar 11 and the second connecting bar 14, and a mounting plate 13 parallel to the upper surface of the slide block 5 is fixedly connected to the outer wall of the connecting plate 12, the end of the mounting plate 13 away from the connecting plate 12 is fixedly connected to the outer wall of the scraper 1.

[0032] The connecting rod 4 has an ink reservoir 16 fixedly connected to its outer wall, a pump body 17 fixedly connected to its bottom, and a connecting pipe 18 fixedly connected to the output end of the pump body 17. The flatness detection device 2 includes a tank 20, a roller brush 23 rotatably connected inside the tank 20, a sponge strip 24 fixedly connected to the inner wall of the tank 20, the sponge strip 24 contacting the roller brush 23, a V-shaped nozzle 22 fixedly connected to the outer wall of the tank 20, the V-shaped nozzle 22 communicating with the inside of the tank 20, multiple branch pipes installed on the outer wall of the connecting pipe 18, the branch pipes passing through the tank 20 and extending into the inside of the sponge strip 24, and a motor 33 for driving the roller brush 23 to rotate fixedly connected to the end of the tank 20.

[0033] In this embodiment, the ink reservoir 16 is used to store ink, and the pump body 17 is used to send the ink inside the ink reservoir 16 out along the connecting pipe 18. The ink is transported along the branch pipe to the sponge strip 24 on the inner side of the tank body 20. The ink on the sponge strip 24 will stick to the roller brush 23. When the roller brush 23 rotates, the ink will be thrown out under the action of centrifugal force.

[0034] The outer wall of the tank 20 is fixedly connected to the base 19, and the outer wall of the scraper 1 is fixedly connected to multiple parallel second limiting rails 21. The outer wall of the base 19 is fixedly connected to a slider that is slidably connected to the second limiting rails 21. The second limiting rails 21 and the slider on the base 19 are in clearance fit. After the slider on the base 19 slides along the second limiting rails 21 to the designated position, it will not move easily.

[0035] The outer wall of the support bar 10 is fixedly connected to a handle 25, and multiple reinforcing bars 26 parallel to the upper surface of the slide block 5 are rotatably connected between the two support bars 10. The multiple reinforcing bars 26 can maintain the distance between the two support bars 10 and prevent the support bars 10 from deforming.

[0036] The second connecting strip 14 has a main chamber 28 and two auxiliary chambers 30 inside. The two auxiliary chambers 30 are located on both sides of the main chamber 28. One end of the auxiliary chamber 30 is connected to the inside of the main chamber 28, and the other end of the auxiliary chamber 30 extends to the shaft installed on the mounting bracket 3. The locking structure 15 includes a knob 27. The center rod of the knob 27 has an external thread. The main chamber 28 has a threaded top block 29 slidably connected inside. The middle part of the threaded top block 29 is threadedly connected to the center rod of the knob 27. The bottom outer edge of the threaded top block 29 has a slanted groove. The inner side of each auxiliary chamber 30 is slidably connected to a top rod 31. A spring 32 is sleeved on the outside of the top rod 31. One end of the spring 32 is fixedly connected to the inner wall of the auxiliary chamber 30, and the other end of the spring 32 is fixedly connected to the top rod 31. The side of the top rod 31 near the threaded top block 29 has a bevel that abuts against the threaded top block 29, and the side of the top rod 31 away from the bevel has an arc groove.

[0037] In this embodiment, when it is necessary to fix the angle of the support bar 10, by rotating the knob 27, the threaded top block 29 moves towards the connecting plate 12 due to the limiting post 35. The inclined groove of the threaded top block 29 will abut against the inclined angle on the top rod 31, pushing the top rod 31 towards the center rod, so that the arc groove at the end of the top rod 31 will press against the center rod, making the center rod unable to rotate relative to the second connecting bar 14, thereby limiting the angle of the support bar 10. Moreover, when the knob 27 is rotated in the opposite direction, the threaded top block 29 moves away from the connecting plate 12, and the top rod 31 will also move away from the center rod under the elastic force of the spring 32.

[0038] The inner wall of the main chamber 28 is fixedly connected with multiple limiting posts 35 parallel to the central rod on the knob 27. The threaded top block 29 has a sliding hole that is slidably connected to the limiting posts 35. The setting of the limiting posts 35 and the sliding hole can limit the threaded top block 29. When the knob 27 is rotated, the threaded top block 29 will not rotate under the limitation of the limiting posts 35.

[0039] Working Principle: In use, the outer slide rail 7 is first fixed to the ground by screws passing through the mounting ears 34. The length of the telescopic push rod 9 is adjusted to control the position of the inner slide rail 6 inside the outer slide rail 7. Since the length of the connecting rod 4 remains constant, when the telescopic push rod 9 extends and the inner slide rail 6 is close to the wall, the scraper 1 is located at the upper part of the wall. When the inner slide rail 6 is away from the wall, the scraper 1 is located at the lower part of the wall. Due to the setting of the connecting rod 4, the mounting bracket 3 and the slide block 5 always remain parallel under the limitation of the two support bars 10. The scraper 1 is fixedly connected to the mounting bracket 3, and the scraper 1 always remains vertical. The scraper 1 is pressed against the plaster spot on the wall as a reference. The tilt angle of the support bar 10 is locked by the locking structure 15. Then, the handle 25 is held and the scraper 1 is moved along the inner slide rail 7. The rail 6 pushes the connecting rod 4, causing the connecting rod 4 to move along the inner slide rail 6 via the set slide block 5, thereby causing the vertical scraper 1 to scrape the wall surface smooth. For areas where the wall surface may be uneven, the smoothness detection device 2 can be pushed along the second limit rail 21, causing the V-shaped nozzle 22 to approach the wall surface. Then, the roller brush 23 is controlled to rotate forward and backward. The ink on the roller brush 23 will be thrown out along the opening of the V-shaped nozzle 22 under the action of centrifugal force. The opening of the V-shaped nozzle 22 gradually becomes larger. When the V-shaped nozzle 22 is close to the wall surface, a narrower line will appear. In areas with depressions or pits, a wider line will appear, making the difference between smooth and uneven areas obvious. This makes it easier for people to identify whether the surface is smooth. After smoothing, the surface layer is then applied.

[0040] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A levelling device for the application of a render to the surface of an ALC board comprising a screed bar (1), characterised in that: The outer wall of the scraping strip (1) is movably connected with a flatness detection device (2), the outer wall of the scraping strip (1) is fixedly connected with a mounting rack (3), the bottom of the mounting rack (3) is rotatably connected with a connecting rod (4), the lower end of the connecting rod (4) is rotatably connected with a sliding seat (5), the bottom of the sliding seat (5) is movably connected with an inner sliding rail (6), the sliding seat (5) slides along the inner sliding rail (6), the bottom of the inner sliding rail (6) is provided with an outer sliding rail (7), the inner sliding rail (6) is located in the inner sliding rail (7), the inner wall of the outer sliding rail (7) is fixedly connected with a plurality of first limiting rails (8) which are parallel to each other, the bottom of the inner sliding rail (6) is fixedly connected with a sliding block which is slidably connected with the first limiting rail (8), the outer wall of the outer sliding rail (7) is fixedly connected with a telescopic push rod (9), the extension end of the telescopic push rod (9) is fixedly connected with the outer wall of the inner sliding rail (6), and the outer wall of the outer sliding rail (7) is fixedly connected with a plurality of mounting ears (34). The connecting rod (4) comprises two parallel support strips (10), and the lower ends of the two support strips (10) are rotatably connected with the top of the sliding seat (5). The mounting rack (3) comprises a first connecting strip (11) and a second connecting strip (14), the upper ends of the support strips (10) are rotatably connected with the first connecting strip (11) and the second connecting strip (14) through the arranged shaft rods, the second connecting strip (14) is provided with a locking structure (15), the first connecting strip (11) and the second connecting strip (14) are parallel to the upper surface of the sliding seat (5), the first connecting strip (11) and the second connecting strip (14) are fixedly connected with a connecting plate (12), the outer wall of the connecting plate (12) is fixedly connected with a mounting plate (13) which is parallel to the upper surface of the sliding seat (5), and one end of the mounting plate (13) away from the connecting plate (12) is fixedly connected with the outer wall of the scraping strip (1). The outer wall of the connecting rod (4) is fixedly connected with an ink storage tank (16), the bottom of the ink storage tank (16) is fixedly connected with a pump body (17), and the output end of the pump body (17) is fixedly connected with a connecting pipe (18). The flatness detection device (2) comprises a tank body (20), the inside of the tank body (20) is rotatably connected with a rolling brush (23), the inner wall of the tank body (20) is fixedly connected with a sponge strip (24), the sponge strip (24) is in contact with the rolling brush (23), the outer wall of the tank body (20) is fixedly connected with a V-shaped spray head (22), the V-shaped spray head (22) is communicated with the inside of the tank body (20), the outer wall of the connecting pipe (18) is provided with a plurality of branch pipes which extend into the inside of the sponge strip (24) through the tank body (20), and the end of the tank body (20) is fixedly connected with a motor (33) for driving the rolling brush (23) to rotate.

2. The leveling device for the ALC board surface plastering construction according to claim 1, characterized in that: The outer wall of the tank body (20) is fixedly connected with a base (19), the outer wall of the scraping strip (1) is fixedly connected with a plurality of second limiting rails (21) which are parallel to each other, and the outer wall of the base (19) is fixedly connected with a sliding block which is slidably connected with the second limiting rail (21).

3. The leveling device for ALC board surface plastering construction according to claim 1, characterized in that: The outer wall of the support strip (10) is fixedly connected with a handle (25), and a plurality of reinforcing strips (26) parallel to the upper surface of the sliding seat (5) are rotationally connected between the two support strips (10).

4. The leveling device for ALC board surface plastering construction according to claim 1, characterized in that: The second connecting strip (14) is internally provided with a main cavity (28) and two auxiliary cavities (30), the two auxiliary cavities (30) are located on the two sides of the main cavity (28), one end of the auxiliary cavity (30) is in communication with the inside of the main cavity (28), and the other end of the auxiliary cavity (30) extends to the shaft rod installed on the mounting frame (3).

5. The leveling device for ALC board surface plastering construction according to claim 4, characterized in that: The locking structure (15) comprises a knob (27), an outer thread is formed in the center rod of the knob (27), a threaded top block (29) is slidably connected in the inside of the main cavity (28), the middle part of the threaded top block (29) is threadedly connected with the center rod of the knob (27), an inclined groove is formed in the bottom outer edge of the threaded top block (29), an inner side of each auxiliary cavity (30) is slidably connected with a top rod (31), the outer part of the top rod (31) is sleeved with a spring (32), one end of the spring (32) is fixedly connected with the inner wall of the auxiliary cavity (30), the other end of the spring (32) is fixedly connected with the top rod (31), an inclined angle that is in abutment with the threaded top block (29) is formed in one side of the top rod (31) close to the threaded top block (29), and an arc-shaped groove is formed in the side of the top rod (31) away from the inclined angle.

6. The leveling device for ALC board surface plastering construction according to claim 5, characterized in that: A plurality of limiting columns (35) parallel to the center rod of the knob (27) are fixedly connected with the inner wall of the main cavity (28), and a sliding hole in sliding connection with the limiting column (35) is formed in the inside of the threaded top block (29).

Images