A building wall surface leveling device
By adjusting the coordinated operation of the structure and telescopic rod, combined with the design of a gas spring and a motor-driven lead screw nut, the problem of frequent manual adjustment of the arm angle required by traditional putty leveling tools is solved. This achieves automatic adaptation to changes in wall angle, improving operational flexibility and leveling efficiency, and reducing labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG GUANZHU BUILDING DECORATION ENGINEERING CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-29
Smart Images

Figure CN224300381U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of building material processing technology, and in particular relates to a building wall surface leveling device. Background Technology
[0002] In the field of architectural decoration, the putty layer sprayed on the wall surface, as a decorative material used to smooth the wall surface, has a crucial impact on the overall quality and aesthetics of the wall. A smooth and flat putty layer not only provides a good foundation for subsequent decorative processes such as painting and wallpapering, but also effectively improves the visual effect and performance of the wall. Therefore, after the putty is sprayed, it must be smoothed to ensure that the wall surface meets the required flatness standard.
[0003] Currently, traditional putty smoothing tools mainly consist of a scraper and a handle attached to the back of the scraper. In actual use, the operator controls the scraper by holding the handle and uses it to smooth the putty layer. However, when the height of the scraper on the wall changes, the angle between the handle and the wall also changes accordingly. To ensure that the scraper can fit the wall at the appropriate angle and perform effective smoothing, the operator has to constantly adjust the angle of their arm or use a ladder to increase their height to adapt to these angle changes. However, this operating method has obvious drawbacks. On the one hand, frequent adjustments to the arm angle greatly reduce the operator's operational flexibility, increasing the difficulty and labor intensity of operation; on the other hand, maintaining an unnatural arm posture for a long time can easily cause operator fatigue, thus affecting the efficiency and quality of the smoothing work, requiring improvement. Utility Model Content
[0004] The purpose of this application is to provide a wall leveling device for building surfaces that can solve the above-mentioned problems.
[0005] The purpose of this application is to provide a wall leveling device for building walls, comprising:
[0006] Flat plate;
[0007] An adjustment structure, mounted on the flat plate, is used to adjust the angle of the flat plate.
[0008] The telescopic rod has one end connected to the flat plate and the adjustment structure.
[0009] The telescopic rod is hinged to the flat plate, and the two ends of the adjustment mechanism are hinged to the flat plate and the telescopic rod, respectively.
[0010] The aforementioned wall leveling device, through the coordinated operation of the adjusting structure and the telescopic rod, overcomes the drawback of traditional leveling tools that require frequent manual adjustment of the arm angle. When the leveling plate changes with the wall height or horizontal position, the adjusting structure, through the linkage of multiple hinge points, automatically adapts to the angle between the leveling plate and the wall, eliminating the need for the operator to consciously adjust their arm posture and effectively improving operational flexibility.
[0011] Meanwhile, the use of a telescopic pole allows the device to cover walls of varying heights without relying on ladders or other lifting tools, thus avoiding the risks of working at heights. Furthermore, the adjustable telescopic length adapts to changes in the horizontal position of walls at different heights, enabling full-range, seamless leveling. Compared to traditional tools that require constant effort to combat arm fatigue, this application, through the adaptive angles of its various structural components, allows the operator to control only the direction of handle movement, significantly reducing labor intensity. It also ensures that the entire flat plate maintains optimal angle against the wall, guaranteeing consistent precision in the putty layer leveling.
[0012] Furthermore, the adjustment structure includes:
[0013] The first mounting base is set on the entire flat plate;
[0014] The second mounting base is disposed on the flat plate and spaced apart from the first mounting base;
[0015] A gas spring, one end of which is hinged to the first mounting base and the other end of which is hinged to the telescopic rod;
[0016] The second mounting base is hinged to the telescopic rod.
[0017] In the adjustment structure, the gas spring, the first mounting base, and the telescopic rod hinge together to form a dynamically balanced triangular support structure. When the telescopic rod moves the entire plate up and down or changes its horizontal position, the gas spring adjusts the tilt angle of the entire plate in real time through its own elastic deformation and the rotational freedom of the hinge point, ensuring that it remains perpendicular to the wall or at the preset leveling angle. The hinge point of the second mounting base and the telescopic rod serves as a fulcrum, forming a double-hinged linkage mechanism with the gas spring. This avoids the lag problem of angle changes in single-fulcrum adjustment, ensuring that the angle and position changes of the entire plate are synchronized during movement. This allows the operator to complete a smooth leveling action without needing to control angle changes, effectively improving the smoothness and efficiency of leveling work, especially when treating large areas of walls.
[0018] Furthermore: a mounting sleeve is provided on the telescopic end of the telescopic rod, the second mounting seat is hinged to the top of the mounting sleeve, a third mounting seat is provided on the side wall of the mounting sleeve, and the gas spring is hinged to the third mounting seat.
[0019] Furthermore, the mounting sleeve is provided with a connector that is hinged to the second mounting base, and the second mounting base is provided with a movable groove for the connector to move.
[0020] The connector and the movable groove of the second mounting seat allow the flat plate to adapt to local angle changes caused by uneven wall surfaces. This ensures that the flat plate maintains overall angular stability during the leveling process and automatically adjusts its fit to uneven areas of the wall, avoiding the uneven putty layer thickness problem caused by the fixed angle of traditional tools. Meanwhile, the mounting sleeve, as the connecting component between the telescopic rod and the adjustment structure, is connected to the telescopic rod via a threaded connection. The third mounting seat and the connector are both fixed to the mounting sleeve, while the first and second mounting seats are fixed to the flat plate.
[0021] In addition, by having a movable groove on the second mounting base, the entire plate will not interfere with the movable head when adjusting the angle, thus avoiding contact between the movable head and the second mounting base, which would restrict the angle adjustment.
[0022] Furthermore, the telescopic rod includes a handle, an outer rod body, and an inner rod body connected in sequence. The inner rod body is connected to the mounting sleeve, and the handle is also provided with a drive structure for driving the inner rod body to extend and retract.
[0023] The grip is for the user to hold, the outer and inner rods are used to extend and retract to change the height, the drive mechanism is used to drive the extension and retraction of the inner rod, and the grip is also equipped with control buttons for controlling the drive mechanism.
[0024] Furthermore, the driving structure includes:
[0025] The motor has a coupling on its output shaft;
[0026] A lead screw, one end of which is connected to a coupling, and the other end extends into the inner rod body, with a flange nut fitted on the lead screw and the flange nut installed on the inner rod body;
[0027] The slider is slidably mounted inside the outer rod and connected to the flange nut;
[0028] The slider is also equipped with a limit protrusion, and the inner wall of the outer rod is equipped with a limit guide groove that matches the limit protrusion.
[0029] In this application, the drive structure adopts a design where a motor drives a lead screw and nut. The extension and retraction length of the telescopic rod can be electrically controlled via the motor inside the handle, eliminating the need for manual stretching or pressing with traditional tools, thus effectively improving operational convenience. The cooperation between the lead screw and the flange nut converts rotational motion into linear motion. Combined with the guiding structure of the slider and the limiting guide groove, the extension and retraction process of the inner rod becomes smooth, avoiding the problem of the entire plate shaking caused by uneven force applied manually, and ensuring the stability of the leveling action.
[0030] At the same time, the cooperation between the limiting protrusion and the guide groove not only restricts the movement trajectory of the slider, but also prevents the inner rod from twisting when the lead screw rotates, ensuring that the entire plate always maintains the correct scraping angle during the extension and retraction process.
[0031] Furthermore, a bearing is connected to one end of the lead screw that is connected to the coupling, and the bearing is fixedly mounted on the handle.
[0032] The installation of bearings ensures that the lead screw axis is coaxial with the motor output shaft, avoiding problems such as jamming or noise caused by eccentric rotation, and also makes the adjustment of extension and retraction smoother.
[0033] The beneficial effects of this application are:
[0034] 1. By adjusting the structure and telescopic rod in synergy, the drawback of traditional leveling tools requiring frequent manual adjustment of the arm angle can be solved. When the flat plate changes with the height or horizontal position of the wall, the adjustment structure can automatically adapt to the angle between the flat plate and the wall through the linkage of multiple hinge points, eliminating the need for the operator to deliberately adjust the arm posture and effectively improving operational flexibility;
[0035] 2. The use of telescopic poles allows the device to cover walls of different heights without relying on ladders or other lifting tools, thus avoiding the risks of working at heights. At the same time, the telescopic length can be adjusted to adapt to changes in the horizontal position of walls of different heights, achieving full-range leveling operations without dead angles.
[0036] 3. By adopting a design that uses a motor to drive a lead screw nut, the extension and retraction length of the telescopic rod can be electrically controlled by the motor inside the handle, eliminating the need for manual stretching or pressing with traditional tools, thus effectively improving the ease of operation. Attached Figure Description
[0037] Figure 1 This is a schematic diagram of the structure of this utility model;
[0038] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0039] Figure 3 yes Figure 2 A magnified view of A in the middle.
[0040] The reference numerals in the figure are as follows: 100, flat plate; 200, adjusting structure; 210, first mounting base; 220, second mounting base; 230, gas spring; 240, mounting sleeve; 250, third mounting base; 251, movable groove; 260, connector; 300, telescopic rod; 310, handle; 320, outer rod body; 330, inner rod body; 400, drive structure; 410, motor; 420, coupling; 430, lead screw; 440, flange nut; 450, slider; 460, limiting protrusion; 461, limiting guide groove; 470, bearing. Detailed Implementation
[0041] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0042] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0043] The wall leveling device provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.
[0044] Example 1:
[0045] like Figure 1 and Figure 2 As shown in the figure, this application provides a wall surface leveling device for building walls, including:
[0046] 100 for the entire flat panel;
[0047] An adjustment structure 200 is mounted on the flat plate 100 and is used to adjust the angle of the flat plate 100.
[0048] The telescopic rod 300 has one end connected to the flat plate 100 and the adjustment structure 200;
[0049] The telescopic rod 300 is hinged to the flat plate 100, and the two ends of the adjustment mechanism are hinged to the flat plate 100 and the telescopic rod 300, respectively.
[0050] In some embodiments of this application, such as Figure 1As shown, the aforementioned wall leveling device, through the coordinated operation of the adjusting structure 200 and the telescopic rod 300, solves the problem of traditional leveling tools requiring frequent manual adjustment of the arm angle. When the leveling plate 100 changes with the height or horizontal position of the wall, the adjusting structure 200, through the linkage of multiple hinge points, can automatically adapt the angle between the leveling plate 100 and the wall, eliminating the need for the operator to deliberately adjust their arm posture and effectively improving operational flexibility.
[0051] Meanwhile, the use of the telescopic pole 300 allows the device to cover walls of different heights without relying on ladders or other lifting tools, thus avoiding the risks of working at heights. Furthermore, the adjustable telescopic length adapts to changes in the horizontal position of walls at different heights, enabling full-range, seamless leveling operations. Compared to traditional tools that require constant effort to combat arm fatigue, this application, through the adaptive angles of its various structural components, allows the operator to control only the direction of the handle 310, significantly reducing labor intensity. It also ensures that the flat plate 100 maintains an optimal angle against the wall, guaranteeing consistent leveling precision of the putty layer.
[0052] Example 2:
[0053] This application provides a wall leveling device for building walls. In addition to the above-mentioned technical features, the wall leveling device for building walls in this application also includes the following technical features.
[0054] like Figure 1 and Figure 2 As shown, the adjustment structure 200 includes:
[0055] The first mounting base 210 is mounted on the flat plate 100;
[0056] The second mounting base 220 is disposed on the flat plate 100 and spaced apart from the first mounting base 210;
[0057] The gas spring 230 has one end hinged to the first mounting base 210 and the other end hinged to the telescopic rod 300;
[0058] The second mounting base 220 is hinged to the telescopic rod 300.
[0059] In this embodiment, in the adjustment structure 200, the air spring 230, the first mounting base 210, and the telescopic rod 300 are hinged together to form a dynamically balanced triangular support structure. When the telescopic rod 300 moves the entire plate 100 up and down or changes its horizontal position, the air spring 230 adjusts the tilt angle of the entire plate 100 in real time through its own elastic deformation and the rotational freedom of the hinge point, ensuring that it remains perpendicular to the wall or at a preset leveling angle. The hinge point of the second mounting base 220 and the telescopic rod 300 serves as a fulcrum, forming a double-hinged linkage mechanism with the air spring 230. This avoids the problem of lag in angle changes when adjusting with a single fulcrum, ensuring that the angle and position changes of the entire plate 100 are synchronized during movement. This allows the operator to complete a smooth leveling action without needing to control the angle changes, effectively improving the smoothness and efficiency of the leveling work, especially when dealing with large areas of wall surfaces.
[0060] Example 3:
[0061] This application provides a wall leveling device for building walls. In addition to the above-mentioned technical features, the wall leveling device for building walls in this application also includes the following technical features.
[0062] like Figure 1 and Figure 2 As shown,
[0063] Furthermore: a mounting sleeve 240 is provided on the telescopic end of the telescopic rod 300, the second mounting seat 220 is hinged to the top of the mounting sleeve 240, a third mounting seat 250 is provided on the side wall of the mounting sleeve 240, and the gas spring 230 is hinged to the third mounting seat 250.
[0064] Furthermore, the mounting sleeve 240 is provided with a connector 260 that is hinged to the second mounting base 220, and the second mounting base 220 is provided with a movable groove 251 for the connector 260 to move.
[0065] By cooperating with the connector 260 and the movable groove 251 of the second mounting base 220, the flat plate 100 can adapt to local angle changes caused by unevenness of the wall surface. This allows the flat plate 100 to maintain overall angular stability during the leveling process and automatically adjust its fit to the unevenness of the wall surface, avoiding the problem of uneven putty layer thickness caused by the fixed angle of traditional tools. At the same time, the mounting sleeve 240 serves as the connecting component between the telescopic rod 300 and the adjusting structure 200. It is connected to the telescopic rod 300 through a threaded connection. The third mounting base 250 and the connector 260 are both fixed on the mounting sleeve 240, and the first mounting base 210 and the second mounting base 220 are fixed on the flat plate 100.
[0066] Furthermore, by providing a movable slot 251 on the second mounting base 220, the entire plate 100 will not interfere with the movable head during angle adjustment, thus preventing the movable head from contacting the second mounting base 220 and thus limiting the angle adjustment.
[0067] Example 4:
[0068] This application provides a wall leveling device for building walls. In addition to the above-mentioned technical features, the wall leveling device for building walls in this application also includes the following technical features.
[0069] like Figures 1 to 3 As shown, the telescopic rod 300 includes a handle 310, an outer rod body 320 and an inner rod body 330 connected in sequence. The inner rod body 330 is connected to the mounting sleeve 240. The handle 310 is also provided with a drive structure 400 for driving the inner rod body 330 to extend and retract.
[0070] In this embodiment, the grip 310 is used by the user to hold it, the outer rod 320 and the inner rod 330 are used to extend and retract to change the height, and the drive structure 400 is used to drive the inner rod 330 to extend and retract. A control button for controlling the drive structure 400 is also mounted on the grip 310.
[0071] Example 5:
[0072] This application provides a wall leveling device for building walls. In addition to the above-mentioned technical features, the wall leveling device for building walls in this application also includes the following technical features.
[0073] like Figure 3 As shown in the embodiments of this application, the driving structure 400 includes:
[0074] Motor 410, whose output shaft is equipped with coupling 420;
[0075] The lead screw 430 has one end connected to the coupling 420 and the other end extends in the direction of the inner rod body 330. A flange nut 440 is fitted on the lead screw 430 and is installed on the inner rod body 330.
[0076] The slider 450 is slidably disposed inside the outer rod 320 and connected to the flange nut 440;
[0077] The slider 450 is also provided with a limiting protrusion 460, and the inner wall of the outer rod 320 is provided with a limiting guide groove 461 that is adapted to the limiting protrusion 460.
[0078] Furthermore, in this application, the drive structure 400 adopts a design where a motor 410 drives a lead screw 430 nut. The extension and retraction length of the telescopic rod 300 can be electrically controlled by the motor 410 inside the handle 310, eliminating the need for manual stretching or pressing with traditional tools, effectively improving operational convenience. The cooperation between the lead screw 430 and the flange nut 440 converts rotational motion into linear motion. Combined with the guiding structure of the slider 450 and the limiting guide groove 461, the extension and retraction process of the inner rod 330 becomes smooth, avoiding the shaking problem of the flat plate 100 caused by uneven force applied manually, and ensuring the stability of the leveling action.
[0079] At the same time, the cooperation between the limiting protrusion 460 and the guide groove not only restricts the movement trajectory of the slider 450, but also prevents the inner rod 330 from twisting when the lead screw 430 rotates, ensuring that the entire plate 100 always maintains the correct scraping angle during the extension and retraction process.
[0080] Furthermore, a bearing 470 is connected to one end of the lead screw 430 that is connected to the coupling 420, and the bearing 470 is fixedly mounted on the handle 310.
[0081] The installation of bearing 470 ensures that the axis of lead screw 430 is coaxial with the output shaft of motor 410, avoiding problems such as jamming or noise caused by eccentric rotation, and also makes the adjustment of extension and retraction smoother.
[0082] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0083] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A wall surface leveling device for building structures, characterized in that: include: Flat plate (100); An adjustment structure (200) is provided on the flat plate (100) for adjusting the angle of the flat plate (100); The telescopic rod (300) is connected at one end to the flat plate (100) and the adjusting structure (200); The telescopic rod (300) is hinged to the flat plate (100), and the two ends of the adjustment mechanism are hinged to the flat plate (100) and the telescopic rod (300) respectively.
2. The wall surface leveling device for building walls according to claim 1, characterized in that: The adjustment structure (200) includes: The first mounting base (210) is mounted on the flat plate (100); The second mounting base (220) is disposed on the flat plate (100) and spaced apart from the first mounting base (210); A gas spring (230) has one end hinged to a first mounting base (210) and the other end hinged to a telescopic rod (300); The second mounting base (220) is hinged to the telescopic rod (300).
3. The wall surface leveling device for building walls according to claim 2, characterized in that: The telescopic rod (300) is provided with a mounting sleeve (240) at its telescopic end. The second mounting seat (220) is hinged to the top of the mounting sleeve (240). The mounting sleeve (240) is provided with a third mounting seat (250) on its side wall. The gas spring (230) is hinged to the third mounting seat (250).
4. The wall surface leveling device for building walls according to claim 3, characterized in that: The mounting sleeve (240) is provided with a connector (260) that is hinged to the second mounting base (220), and the second mounting base (220) is provided with a movable groove (251) for the connector (260) to move.
5. A wall surface leveling device for building walls according to claim 4, characterized in that: The telescopic rod (300) includes a handle (310), an outer rod body (320) and an inner rod body (330) connected in sequence. The inner rod body (330) is connected to the mounting sleeve (240). The handle (310) is also provided with a drive structure (400) for driving the inner rod body (330) to extend and retract.
6. A wall surface leveling device for building walls according to claim 5, characterized in that: The drive structure (400) includes: The motor (410) has a coupling (420) on its output shaft; A lead screw (430) has one end connected to a coupling (420) and the other end extends into the inner rod body (330). A flange nut (440) is fitted on the lead screw (430) and is installed on the inner rod body (330). The slider (450) is slidably disposed inside the outer rod body (320) and connected to the flange nut (440); The slider (450) is also provided with a limiting protrusion (460), and the inner wall of the outer rod (320) is provided with a limiting guide groove (461) that is adapted to the limiting protrusion (460).
7. A wall surface leveling device for building walls according to claim 6, characterized in that: The end of the lead screw (430) connected to the coupling (420) is connected to a bearing (470), and the bearing (470) is fixedly installed on the handle (310).