A building wall plastering device

Abstract

The utility model belongs to wall construction technical field, and disclose a kind of building wall plastering device, including support, the surface of support is provided with handle;Further include control component, for the roughness and smoothness when controlling wall plastering;The control component includes T-shaped connecting sheet, and the T-shaped connecting sheet is between support and handle position.This utility model directly drives internal connecting rod mechanism by pressing single press bar, realize the quick switching of linear scraper and tooth slot scraper, and operation process is highly simplified.The mechanism uses press bar to push hinged plate, forces telescopic rod to rotate around fixed axle, to synchronously control the alternate telescoping of two groups of scrapers.This linkage design ensures the synchronism and reliability of mode conversion, operators do not need step adjustment or use additional tools, significantly improve the work efficiency of wall plastering, especially suitable for the construction scene that needs to frequently switch between smooth surface and rough surface.

Description

Technical Field

[0001] This utility model belongs to the field of wall construction technology, specifically a building wall plastering device. Background Technology

[0002] Plastering the interior walls of a building is a crucial foundational step in construction. It primarily addresses the issue of insufficient surface flatness, creating a smooth and clean base by covering the original brick or concrete wall surface, thus providing ideal conditions for subsequent painting, tiling, and other decorative work. Simultaneously, the plaster layer effectively fills wall gaps, significantly improving its overall integrity and enhancing the wall's sound insulation and thermal insulation properties. Furthermore, this dense protective layer enhances the wall's durability, making it more resistant to moisture and daily wear. From a safety perspective, plaster also possesses a certain degree of fire resistance, effectively delaying the high temperatures that can damage the main structure during a fire. Therefore, plastering not only affects the building's aesthetics but also directly impacts its functional quality, user comfort, and safe lifespan.

[0003] Existing wall plastering techniques generally suffer from two prominent technical defects. First, the switching process between smooth and rough surface treatment modes for many plastering tools is cumbersome, often requiring operators to change different parts or perform multiple adjustments. This not only disrupts the continuity of construction and reduces work efficiency but also makes it difficult to guarantee the stability and consistency of the scraper's working state after switching. Second, existing devices generally lack convenient and reliable plaster thickness control mechanisms. The thickness relies primarily on the worker's personal experience and feel, leading to difficulties in ensuring the uniformity of the plaster layer and causing thickness fluctuations. This directly affects construction quality and the level of project standardization, failing to meet the demands of modern construction with high precision requirements for finishes. Therefore, a new wall plastering device is proposed to address these problems. Utility Model Content

[0004] To address the problems mentioned in the background section, this utility model provides a building wall plastering device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a building wall plastering device, including a bracket, the surface of which is provided with a handle; and a control component for adjusting the roughness and smoothness of the wall plastering; the control component includes a T-shaped connecting piece, the T-shaped connecting piece being located between the bracket and the handle, and the T-shaped connecting piece being in contact with the surface of the bracket, both ends of the T-shaped connecting piece passing through the handle, and both ends of the T-shaped connecting piece being fixedly connected to connecting columns, a roller being provided on the inner side of the end of the connecting column away from the T-shaped connecting piece, the roller being plate-shaped, a connecting sleeve being fixedly connected to the surface of the T-shaped connecting piece, and a pull plate being fixedly connected to the end of the connecting sleeve away from the T-shaped connecting piece, the inner side of the pull plate being fixedly connected to a limiting tooth.

[0006] Preferably, a pressure rod is inserted into and slidably connected to the inner side of the bracket, and grooves are provided on both sides of the pressure rod. An elastic pressure plate is fixedly connected to the inner side of the groove, and ratchet teeth are fixedly connected to the surface of the elastic pressure plate.

[0007] Preferably, the pressure rod passes through the pull plate and the connecting sleeve, and the pressure rod and the connecting sleeve are slidably connected, and the limiting tooth fixedly connected to the inner side of the pull plate is at the same horizontal height as the ratchet on the elastic pressure plate.

[0008] Preferably, a shaft is passed through and fixedly connected to the inner side of the bracket, a telescopic rod is passed through and rotatably connected to the shaft, and hinge blocks are fixedly connected to both ends of the telescopic rod.

[0009] Preferably, the hinge blocks at both ends of the telescopic rod are respectively connected to hinge plates, and there are two sets of hinge plates.

[0010] Preferably, a straight scraper and a toothed scraper are inserted into and slidably connected to the inner side of the bracket, and the bottom of the straight scraper is fixedly connected to the top of one set of the hinge plates, while the top of the toothed scraper is fixedly connected to the bottom of the other set of the hinge plates.

[0011] Preferably, a spring is fixedly connected to the surface of the pull plate, and the end of the spring away from the pull plate is fixedly connected to the end surface of the pressure rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model allows for rapid switching between straight and toothed scrapers by directly driving the internal linkage mechanism with a single pressure rod, greatly simplifying the operation process. The mechanism uses the pressure rod to push the hinge plate, forcing the telescopic rod to rotate around a fixed axis, thereby synchronously controlling the alternating extension and retraction of the two sets of scrapers. This linkage design ensures the synchronicity and reliability of mode switching, eliminating the need for step-by-step adjustments or additional tools, significantly improving the efficiency of wall plastering. It is particularly suitable for construction scenarios requiring frequent switching between smooth and rough surfaces.

[0014] 2. This invention achieves precise control over plaster thickness by adjusting the gap between the roller and the wall through a pull plate. The adjustment mechanism utilizes the engagement of limiting teeth and ratchet teeth to achieve self-locking, stably maintaining the set roller position. Since the scraper's extension length is fixed, the distance between the adjusted roller and the wall equals the set reference height of the scraper's working surface, thus ensuring uniform plaster layer thickness. This mechanical thickness control method is structurally stable and reliable, effectively avoiding thickness fluctuations caused by manual operation, and significantly improving construction quality and standardization. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a right view of the overall structure of this utility model;

[0017] Figure 3 This is an enlarged view of the adjacent structures of the T-shaped connecting piece of this utility model;

[0018] Figure 4 This is an enlarged cross-sectional view of the bracket of this utility model;

[0019] Figure 5 This is a partial enlarged view of the control component of this utility model.

[0020] In the diagram: 1. Bracket; 2. Control component; 3. Handle; 21. T-shaped connecting piece; 22. Connecting column; 23. Roller; 24. Connecting sleeve; 25. Pull plate; 26. Limiting tooth; 27. Pressure rod; 28. Groove; 29. ​​Elastic pressure plate; 210. Ratchet; 211. Hinge plate; 212. Hinge block; 213. Telescopic rod; 214. Shaft; 215. Straight scraper; 216. Toothed scraper; 217. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 5As shown, this utility model provides a building wall plastering device, including a bracket 1, with a handle 3 on the surface of the bracket 1; it also includes a control component 2 for adjusting the roughness and smoothness of the wall plastering; the control component 2 includes a T-shaped connecting piece 21, which is located between the bracket 1 and the handle 3, and the T-shaped connecting piece 21 is in contact with the surface of the bracket 1. Both ends of the T-shaped connecting piece 21 pass through the handle 3, and both ends of the T-shaped connecting piece 21 are fixedly connected to connecting posts 22. A roller 23 is provided on the inner side of the end of the connecting post 22 away from the T-shaped connecting piece 21. The roller 23 is plate-shaped. A connecting sleeve 24 is fixedly connected to the surface of the T-shaped connecting piece 21. A pull plate 25 is fixedly connected to the end of the connecting sleeve 24 away from the T-shaped connecting piece 21. A limit tooth 26 is fixedly connected to the inner side of the pull plate 25. A pressure rod 27 is inserted into and slidably connected to the inner side of the bracket 1. Grooves 28 are provided on both sides of the pressure rod 27. An elastic pressure plate 29 is fixedly connected to the inner side of the grooves 28, and ratchet teeth 210 are fixedly connected to the surface of the elastic pressure plate 29. The pressure rod 27 passes through the pull plate 25 and the connecting sleeve 24, and the pressure rod 27 and the connecting sleeve 24 are slidably connected. The limiting tooth 26 fixedly connected to the inner side of the pull plate 25 is at the same horizontal height as the ratchet teeth 210 on the elastic pressure plate 29. A shaft 214 is passed through and fixedly connected to the inner side of the bracket 1. A telescopic rod 213 is passed through and rotatably connected to the shaft 214. Hinge blocks 212 are fixedly connected to both ends of the telescopic rod 213. Hinge plates 211 are respectively passed through and hinged to the hinge blocks 212 at both ends of the telescopic rod 213. There are two sets of hinge plates 211. When precise control of plaster thickness is required, the operator pulls the pull plate 25 outward. The pull plate 25 moves the T-shaped connecting piece 21, which in turn pulls the plate-shaped rollers 23 on the connecting columns 22 at both ends to retract inward, thereby reducing the gap between the rollers 23 and the wall surface. During this process, the limiting tooth 26 on the inner side of the pull plate 25 will collide with the ratchet 210 and undergo elastic deformation when moving. After passing the ratchet 210, it will be limited by the ratchet 210 in the new position, thus locking the position of the roller 23. To unlock, simply press the pressure rod 27 again. The elastic pressure piece 29 will deform, causing the ratchet 210 to disengage from the limiting tooth 26. The core function of roller 23 is to control the distance between bracket 1 and the wall by adjusting its gap with the wall. Since the extension length of straight scraper 215 and toothed scraper 216 is fixed, adjusting the position of roller 23 directly determines the reference distance between the scraper working surface and the wall, thereby accurately controlling the thickness of the plaster layer and ensuring the uniformity of the overall plaster thickness.

[0023] like Figures 1 to 5As shown, a straight scraper 215 and a toothed scraper 216 are inserted into and slidably connected to the inner side of the bracket 1. The bottom of the straight scraper 215 is fixedly connected to the top of one set of hinge plates 211, and the top of the toothed scraper 216 is fixedly connected to the bottom of another set of hinge plates 211. A spring 217 is fixedly connected to the surface of the pull plate 25, and the end of the spring 217 away from the pull plate 25 is fixedly connected to the end surface of the pressure rod 27. In the initial state, the spring 217 provides elastic force to keep the pull plate 25 and the limiting tooth 26 fixed thereto in the initial position. At this time, the limiting tooth 26 meshes with the ratchet 210 of the elastic pressure plate 29 on the pressure rod 27, locking the pressure rod 27. Then, through the linkage mechanism composed of the hinge plate 211 and the telescopic rod 213, the extended state of the straight scraper 215 and the toothed scraper 216 is fixed.

[0024] Using the above scheme: the operator directly presses the pressure rod 27, which slides inside the bracket 1, pushing the hinge plate 211 above the toothed scraper 216 to move. The hinge plate 211 drives the telescopic rod 213 to rotate around the shaft 214 through the hinge block 212. The other end of the telescopic rod 213 pulls the hinge plate 211 at the bottom of the straight scraper 215 through another hinge block 212, forcing the straight scraper 215 to retract, while the toothed scraper 216 extends, thereby realizing the function switch from smooth plastering to rough plastering.

[0025] Working principle and usage process of this utility model:

[0026] In the initial state, the spring 217 provides elastic force to keep the pull plate 25 and the limiting tooth 26 fixed thereto in the initial position. At this time, the limiting tooth 26 and the ratchet 210 of the elastic pressure plate 29 on the pressure rod 27 mesh with each other to lock the pressure rod 27. Then, through the linkage mechanism composed of the hinge plate 211 and the telescopic rod 213, the extended state of the straight scraper 215 and the toothed scraper 216 is fixed. When the scraper mode needs to be switched, the operator directly presses the pressure rod 27. The pressure rod 27 slides inside the bracket 1, pushing the hinge plate 211 above the toothed scraper 216 to move. The hinge plate 211 drives the telescopic rod 213 to rotate around the shaft 214 through the hinge block 212. The other end of the telescopic rod 213 pulls the hinge plate 211 at the bottom of the straight scraper 215 through another hinge block 212, forcing the straight scraper 215 to retract, while the toothed scraper 216 extends, thereby realizing the function switch from smooth plastering to rough plastering. When precise control of plaster thickness is required, the operator pulls the pull plate 25 outward. The pull plate 25 moves the T-shaped connecting piece 21, which in turn pulls the plate-shaped rollers 23 on the connecting columns 22 at both ends to retract inward, thereby reducing the gap between the rollers 23 and the wall surface. During this process, the limiting tooth 26 on the inner side of the pull plate 25 will collide with the ratchet 210 and undergo elastic deformation when moving. After passing the ratchet 210, it will be limited by the ratchet 210 in the new position, thus locking the position of the roller 23. To unlock, simply press the pressure rod 27 again. The elastic pressure piece 29 will deform, causing the ratchet 210 to disengage from the limiting tooth 26. The core function of roller 23 is to control the distance between the support 1 and the wall by adjusting its gap with the wall. Cement is pre-placed in the storage area in the middle of the straight scraper 215. When the support 1 is pushed along the wall, the cement is evenly pushed from behind the straight scraper 215 to the wall to complete the plastering. Since the extension length of the straight scraper 215 and the toothed scraper 216 is fixed, adjusting the position of roller 23 directly determines the reference distance between the scraper working surface and the wall, thereby accurately controlling the thickness of the plaster layer and ensuring the uniformity of the overall plaster thickness.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A building wall plastering device, comprising a support frame (1), characterized in that: The surface of the bracket (1) is provided with a handle (3); It also includes a control component (2) for adjusting the roughness and smoothness of the wall plastering process; The control component (2) includes a T-shaped connecting piece (21), which is located between the bracket (1) and the handle (3) and is in contact with the surface of the bracket (1). Both ends of the T-shaped connecting piece (21) pass through the handle (3). Both ends of the T-shaped connecting piece (21) are fixedly connected to connecting posts (22). A roller (23) is provided on the inner side of the end of the connecting post (22) away from the T-shaped connecting piece (21). The roller (23) is plate-shaped. A connecting sleeve (24) is fixedly connected to the surface of the T-shaped connecting piece (21). A pull plate (25) is fixedly connected to the end of the connecting sleeve (24) away from the T-shaped connecting piece (21). A limit tooth (26) is fixedly connected to the inner side of the pull plate (25).

2. The building wall plastering device according to claim 1, characterized in that: A pressure rod (27) is inserted into and slidably connected to the inner side of the bracket (1). Grooves (28) are provided on both sides of the pressure rod (27). An elastic pressure plate (29) is fixedly connected to the inner side of the groove (28). A ratchet (210) is fixedly connected to the surface of the elastic pressure plate (29).

3. The building wall plastering device according to claim 2, characterized in that: The pressure rod (27) passes through the pull plate (25) and the connecting sleeve (24), and the pressure rod (27) and the connecting sleeve (24) are slidably connected. The limiting tooth (26) fixedly connected to the inner side of the pull plate (25) is at the same horizontal height as the ratchet (210) on the elastic pressure plate (29).

4. A building wall plastering device according to claim 3, characterized in that: A shaft (214) is connected through and fixedly connected to the inner side of the bracket (1). A telescopic rod (213) is connected through and rotatably connected to the shaft (214). A hinge block (212) is fixedly connected to both ends of the telescopic rod (213).

5. A building wall plastering device according to claim 4, characterized in that: The hinge blocks (212) at both ends of the telescopic rod (213) are respectively hinged to hinge plates (211), and there are two sets of hinge plates (211).

6. A building wall plastering device according to claim 5, characterized in that: The inner side of the bracket (1) is inserted and slidably connected with a straight scraper (215) and a toothed scraper (216), and the bottom of the straight scraper (215) is fixedly connected to the top of one of the hinge plates (211), and the top of the toothed scraper (216) is fixedly connected to the bottom of the other set of hinge plates (211).

7. A building wall plastering device according to claim 1, characterized in that: A spring (217) is fixedly connected to the surface of the pull plate (25), and the end of the spring (217) away from the pull plate (25) is fixedly connected to the end surface of the pressure rod (27).

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