A wall plastering and leveling device and a method of using the same
By introducing technologies such as laser levels and electric lifting columns into the plastering and leveling device, the problems of low efficiency and poor accuracy of traditional manual plastering and leveling have been solved. This has enabled efficient and precise control of wall flatness and verticality, reducing construction costs and reliance on skilled workers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- MCC TIANGONG GROUP
- Filing Date
- 2026-03-06
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional manual plastering and leveling methods are inefficient, lack precision, and are inconsistent, resulting in high construction costs and unstable quality.
A wall plastering leveling device is adopted, including a support module, a leveling module, a scraping module and a positioning module. It uses a laser level to establish an absolute horizontal benchmark, and combines an electric lifting column and a fine adjustment mechanism to achieve precise scraping.
It significantly improves construction efficiency by more than 50%, ensures the flatness and verticality of the wall surface, reduces mortar waste, reduces reliance on skilled workers, and improves the consistency of construction quality.
Smart Images
Figure CN122129121A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of auxiliary devices for plastering in building construction, and in particular relates to a wall plastering and leveling device and its usage method. Background Technology
[0002] In the construction of building walls, plastering and leveling are crucial steps to ensure the flatness and verticality of the wall surface, directly affecting the quality and effect of subsequent decoration work. Traditional plastering and leveling mainly relies on workers using simple tools such as straightedges and screeds, combined with visual inspection for judgment and operation. While this method offers some flexibility in small-scale or non-standardized construction, it has significant shortcomings in large-scale, high-standard construction.
[0003] First, the construction efficiency is low, the labor intensity is high, and workers need to repeatedly measure, level, and add materials. The process is cumbersome and highly dependent on skilled workers.
[0004] Secondly, construction precision is difficult to guarantee. Human judgment is easily affected by factors such as fatigue, lighting, and visual errors, making it difficult to ensure that the overall flatness and verticality of large-area walls meet the specifications.
[0005] Furthermore, there are significant differences in construction quality between different workers, and even among the same worker at different times, due to the lack of unified operating standards, resulting in poor consistency in wall quality.
[0006] In addition, because it is difficult to form a mortar in one go, it is often necessary to replenish the material or grind it multiple times, which wastes mortar materials and increases construction costs.
[0007] In summary, existing plastering and leveling technologies have room for improvement in terms of efficiency, accuracy, consistency, and economy, and there is an urgent need for a new leveling device and method to solve the above problems. Summary of the Invention
[0008] This application provides a wall plastering and leveling device and its usage method, aiming to solve the problems of low efficiency, poor accuracy and insufficient consistency of traditional manual plastering and leveling.
[0009] To solve at least one of the above-mentioned technical problems, the technical solution adopted in this application is:
[0010] A wall plastering and leveling device, comprising:
[0011] Support module, a bracket with a hollowed-out cuboid structure made of rigid profiles;
[0012] The leveling module, used to project a horizontal laser reference plane onto the wall, is slidably connected to the top of the support module;
[0013] The leveling module includes a scraper and a fine-tuning mechanism. The scraper is located at the front end of the support module and is placed horizontally. The fine-tuning mechanism is located in the height direction of the support module and is connected to the front upper beam and the front lower beam in the support module respectively, for adjusting the relative distance between the scraper and the laser reference surface.
[0014] The positioning module, located at the bottom front end of the support module, is used to ensure that the leveling device remains vertical during construction.
[0015] Furthermore, the support module also includes a handrail and a movable roller, both of which are located on the side of the bracket away from the scraper, and the handrail is located at the top of the bracket.
[0016] Furthermore, the movable rollers are located at both ends of the lower rear beam of the support.
[0017] Furthermore, the positioning module includes a base and a guide column, which are vertically aligned and disposed on the extension section of the lower beam at the front end of the bracket.
[0018] Furthermore, the fine-tuning mechanism is an electric lifting column, the top of which is fixed to the middle of the upper beam at the front end of the bracket, and the bottom of which is fixed to the lower beam at the front end of the bracket.
[0019] Furthermore, the scraper is horizontally mounted on the sleeve of the lifting column, and the lifting column can drive the scraper to move up and down.
[0020] Furthermore, the leveling module includes a laser level, a fixed base, and a guide rail, wherein the guide rail is disposed along the length of the top of the bracket and is located in the middle position; the laser level is fixed on the fixed base, and the fixed base slides with the guide rail.
[0021] Furthermore, the leveling module also includes an auxiliary frame for driving the fixed seat to slide along the guide rail. The auxiliary frame is symmetrically arranged relative to the guide rail, and its two ends are respectively movably connected to the fixed seat and the side beam at the top of the support.
[0022] Furthermore, an auxiliary frame 2 is provided on the side beam, which is used to support the side of the bracket. Its top is connected to the side beam, and its bottom is connected to the vertical beam in the bracket.
[0023] A method of using the wall plastering and leveling device described above, comprising the following steps:
[0024] S1. Preparation: Clean the wall base and set plaster thickness marks according to design requirements;
[0025] S2. Calibrate the leveling device, turn on the leveling module, adjust the vertical state of the leveling device through the positioning module, and set the distance between the scraper and the laser reference surface to be equal to the designed plastering thickness through the fine adjustment mechanism.
[0026] S3. Apply mortar to the wall surface, making sure the mortar is slightly thicker than the designed thickness and spread it evenly.
[0027] S4. Laser-guided leveling: While leveling, move the hand leveling device along the wall at a constant speed, while observing the laser line projection position to ensure that the laser line is always aligned with the upper edge of the scraper to remove excess mortar.
[0028] S5. Local repair and acceptance: Repair or scrape uneven areas, and conduct overall acceptance using a laser reference surface.
[0029] This application discloses a wall plastering leveling device that establishes an absolutely horizontal physical benchmark using laser technology, replacing human judgment and significantly improving the flatness and verticality of the wall surface, ensuring stable and reliable construction quality. It simplifies the traditional multi-step process to laser-guided leveling, increasing construction efficiency by over 50% and reducing reliance on skilled workers. One-step leveling reduces mortar waste caused by repeated repairs, saving material costs. Operation is simple; ordinary workers can master it after short-term training, effectively solving the problem of skilled worker shortages. The overall benefits are significant, and it is suitable for various types of wall plastering construction. This application also proposes a method for using the wall plastering leveling device. Attached Figure Description
[0030] Figure 1 This is a perspective view of a wall plastering and leveling device according to this application.
[0031] In the diagram: 10. Support module; 11. Front upper beam frame; 12. Front lower beam frame; 13. Rear upper beam frame; 14. Rear lower beam frame; 15. Side beam; 16. Vertical beam; 17. Handrail; 18. Moving roller; 19. Auxiliary frame two; 20. Leveling module; 21. Laser level; 22. Fixed base; 23. Guide rail; 24. Auxiliary frame one; 30. Scraping module; 31. Scraper; 32. Fine-tuning mechanism; 40. Positioning module; 41. Base; 42. Guide column. Detailed Implementation
[0032] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0033] This embodiment proposes a wall plastering leveling device, such as... Figure 1As shown, the device mainly comprises four modules: support module 10, leveling module 20, screeding module 30, and positioning module 40. This device establishes an absolutely horizontal physical benchmark using lasers, replacing human judgment and significantly improving the flatness and verticality of the wall surface, ensuring stable and reliable construction quality. It simplifies the traditional multi-step process to laser-guided screeding, increasing construction efficiency by over 50% and reducing reliance on skilled workers. One-step screeding reduces mortar waste caused by repeated repairs, saving material costs.
[0034] Specifically, the support module 10 is a rigid, hollow cuboid structure bracket composed of profiles, including a front upper beam 11, a front lower beam 12, a rear upper beam 13, and a rear lower beam 14. The front upper beam 11 and front lower beam 12 are connected by two vertical beams 16; the rear upper beam 13 and rear lower beam 14 are connected by two vertical beams of equal height. The front upper beam 11 and rear upper beam 13, and the front lower beam 12 and rear lower beam 14, are connected by two side beams 15. All beams are connected end-to-end by welded steel pipes. This hollow structure facilitates the installation of other modules and allows for observation of their operational status.
[0035] The support module 10 also includes a handrail 17 and a set of aligned movable rollers 18. Both the handrail 17 and the movable rollers 18 are located on the side of the support module 10 away from the scraper 31, with the handrail positioned at the top of the support module 10. As shown in the figure, the handrail 17 is mounted on the rear upper beam frame 13, and the movable rollers 18 are located at both ends of the rear lower beam frame 14. This layout facilitates the operator in moving the leveling device, resulting in a compact structure and labor-saving operation.
[0036] An inclined auxiliary frame 19 is provided between the side beam 15 and the rear vertical beam 16 to enhance the lateral rigidity of the support bracket. The top of the auxiliary frame 19 is connected to the side beam 15, and its bottom is connected to the rear vertical beam 16 in the bracket. Subsequently, the side beams 15 on both sides, the rear vertical beam 16, and the auxiliary frame 19 form a stable triangle, which can further improve the lateral strength of the support module 10, ensure the overall stability of the device during movement and leveling operations, and avoid deformation affecting accuracy.
[0037] The leveling module 20 is mainly used to project a horizontal laser reference plane onto the wall, and it is slidably connected to the top of the support module 10. The leveling module 20 includes a laser level 21, a fixed base 22, and a guide rail 23. The guide rail 23 is positioned along the length of the top of the support, with its two ends connected to the front upper beam 11 and the rear upper beam 13, respectively, and located in the middle of the top. The laser level 21 is fixed to the fixed base 22, and the fixed base 22 and the guide rail 23 are slidably engaged. Through the engagement of the guide rail 23 and the fixed base 22, the laser level 21 can move horizontally along the wall surface at the top of the device, thereby covering a larger working surface.
[0038] The leveling module 20 also includes an auxiliary frame 24 for driving the fixed base 22 to slide along the guide rail 23. The auxiliary frame 24 is symmetrically arranged with respect to the length of the guide rail 23, and its two ends are movably connected to the side of the fixed base 22 and the side beam 15 at the top of the support, respectively. During operation, the fixed base 22 can be manually pushed to slide horizontally along the guide rail 23. The auxiliary frames 24 on both sides are automatically telescopic structures, such as telescopic rods or hinged connecting rods, which can ensure that the fixed base 22 will not sway left and right, thereby ensuring the smooth movement of the laser level and the accuracy of the projected laser reference surface.
[0039] The leveling module 30 includes a scraper 31 and a fine-tuning mechanism 32. The scraper 31 is located at the front end of the support module 10 and is placed horizontally. The fine-tuning mechanism 32 is located in the height direction of the support module 10 and is connected to the front upper beam 11 and front lower beam 12 of the support module 10, respectively, and is used to adjust the relative distance between the scraper 31 and the laser reference surface. The fine-tuning mechanism 32 is an electric lifting column. The scraper 31 is horizontally mounted on the sleeve of the lifting column. Through the precise extension and retraction of the electric lifting column, the scraper 31 can be moved up and down to achieve rapid and accurate setting of different designed plaster thicknesses, and can be fine-tuned as needed during construction.
[0040] The positioning module 40 is located at the front bottom of the support module 10 and is used to ensure that the leveling device remains vertical during construction. The positioning module 40 includes a base 41 and a guide column 42, which are vertically aligned and installed on the extension of the lower beam 12 at the front end of the support. During construction, the guide column 42 is in contact with the wall surface, and the base 41 is in contact with the ground or skirting board. The two work together to provide a stable, perpendicular movement guide for the device, ensuring the flatness of the scraped wall surface in the vertical direction.
[0041] A method of using the wall plastering and leveling device described above, such as... Figure 1 As shown, the steps include:
[0042] S1. Preparation: Clean the wall base and set plaster thickness marks according to design requirements.
[0043] S2. Calibrate the leveling device, turn on the leveling module 20, use the positioning module 40 to make the device fit tightly against the wall and adjust it to a vertical state, and then use the fine adjustment mechanism 32 to precisely set the vertical distance between the lower edge of the scraper 31 and the laser reference surface so that it is exactly equal to the designed plaster thickness.
[0044] S3. Apply mortar: Apply a layer of mortar to the wall surface that is slightly thicker than the designed thickness and spread it evenly.
[0045] S4. Laser-guided leveling: During leveling, the operator holds the handle 17 and pushes the leveling device to move at a constant speed along the direction guided by the positioning module 40. At the same time, the operator closely observes the laser line projected onto the wall by the laser level 21, ensuring that this laser line is always aligned with the upper edge of the scraper 31. When the laser line is aligned with the upper edge of the scraper, it indicates that the plaster layer thickness at the lower edge of the scraper is exactly the preset value, thus removing excess mortar exceeding the preset thickness in one go.
[0046] S5. Local repair and acceptance: Repair or scrape the corners or uneven areas that the device cannot cover, and conduct overall acceptance using the laser reference surface.
[0047] In summary, the wall plastering leveling device designed in this application establishes an absolutely level physical benchmark using laser, replacing human judgment and significantly improving the flatness and verticality of the wall surface, ensuring stable and reliable construction quality. It simplifies the traditional multi-step process to laser-guided leveling, increasing construction efficiency by over 50% and reducing reliance on skilled workers. One-step leveling reduces mortar waste caused by repeated repairs, saving material costs. Operation is simple; ordinary workers can master it after short-term training, effectively solving the problem of skilled worker shortages. The overall benefits are significant, and it is suitable for various types of wall plastering construction. This application also proposes a method for using the wall plastering leveling device.
[0048] The embodiments of this application have been described in detail above. These descriptions are merely preferred embodiments and should not be construed as limiting the scope of this application. All equivalent variations and modifications made within the scope of this application should still fall within the patent coverage of this application.
Claims
1. A wall plastering leveling device, characterized in that, include: Support module, a bracket with a hollowed-out cuboid structure made of rigid profiles; The leveling module, used to project a horizontal laser reference plane onto the wall, is slidably connected to the top of the support module; The leveling module includes a scraper and a fine-tuning mechanism. The scraper is located at the front end of the support module and is placed horizontally. The fine-tuning mechanism is located in the height direction of the support module and is connected to the front upper beam and the front lower beam in the support module respectively, for adjusting the relative distance between the scraper and the laser reference surface. The positioning module, located at the bottom front end of the support module, is used to ensure that the leveling device remains vertical during construction.
2. The wall plastering and leveling device according to claim 1, characterized in that, The support module also includes a handrail and a movable roller. The handrail and the movable roller are both located on the side of the bracket away from the scraper, and the handrail is located at the top of the bracket.
3. A wall plastering and leveling device according to claim 2, characterized in that, The movable rollers are located at both ends of the lower beam at the rear end of the support.
4. A wall plastering and leveling device according to any one of claims 1-3, characterized in that, The positioning module includes a base and a guide column, which are vertically aligned and installed on the extension section of the lower beam at the front end of the bracket.
5. A wall plastering and leveling device according to claim 4, characterized in that, The fine-tuning mechanism is an electric lifting column, the top of which is fixed to the middle of the upper beam at the front end of the support, and the bottom of which is fixed to the lower beam at the front end of the support.
6. A wall plastering and leveling device according to claim 5, characterized in that, The scraper is horizontally mounted on the sleeve of the lifting column, and the lifting column can drive the scraper to move up and down.
7. A wall plastering and leveling device according to any one of claims 1-3 and 5-6, characterized in that, The leveling module includes a laser level, a fixed base, and a guide rail. The guide rail is located along the length of the top of the bracket and is positioned in the middle. The laser level is fixed to the fixed base, and the fixed base slides with the guide rail.
8. A wall plastering and leveling device according to claim 7, characterized in that, The leveling module also includes an auxiliary frame for driving the fixed seat to slide along the guide rail. The auxiliary frame is symmetrically arranged relative to the guide rail, and its two ends are movably connected to the fixed seat and the side beam at the top of the support, respectively.
9. A wall plastering and leveling device according to claim 8, characterized in that, An auxiliary frame 2 is also provided on the side beam, which is used to support the side of the bracket. Its top is connected to the side beam, and its bottom is connected to the vertical beam in the bracket.
10. A method of using a wall plastering and leveling device as described in any one of claims 1-9, characterized in that the steps include... include: S1. Preparation: Clean the wall base and set plaster thickness marks according to design requirements; S2. Calibrate the leveling device, turn on the leveling module, adjust the vertical state of the leveling device through the positioning module, and set the distance between the scraper and the laser reference surface to be equal to the designed plastering thickness through the fine adjustment mechanism. S3. Apply mortar to the wall surface, making sure the mortar is slightly thicker than the designed thickness and spread it evenly. S4. Laser-guided leveling: While leveling, move the hand leveling device along the wall at a constant speed, while observing the laser line projection position to ensure that the laser line is always aligned with the upper edge of the scraper to remove excess mortar. S5. Local repair and acceptance: Repair or scrape uneven areas, and conduct overall acceptance using a laser reference surface.