A sliding thin jointing tool
Patent Information
- Application Number
- CN202521763057.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-19
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-08-19
AI Technical Summary
手工勾缝易出现深浅不一、边缘毛糙,影响美观和防水性
[0011]The beneficial effects of this utility model are that workers hold a handle and a mortar board and use the grouting column to grout the cement into the horizontal gaps of the masonry. The design of the grouting column can grout thin mortar joints of 3mm to 5mm, which can effectively ensure the grouting quality and improve construction efficiency.
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Figure CN224769858U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of simple tools for masonry engineering, and more specifically to a sliding thin masonry grouting tool. Background Technology
[0002] In the past, the jointing of masonry walls in construction projects was often neglected, leading to chaotic work practices, wasted time and effort, poor finishing, and a lack of uniformity and strict quality control, which easily resulted in potential quality problems. With the increasing use of aerated concrete blocks, thin mortar joints (≤3mm) are particularly problematic. Ordinary grouting tools are insufficient to compact the mortar, easily causing hollow areas or poor adhesion. Narrow joints are often not fully filled with mortar, making them prone to water seepage or cracking later. Manual grouting often results in inconsistent depth and rough edges, affecting aesthetics and waterproofing. On-site, steel bars are often used to form circular rings for manual grouting, but this often leads to inconsistent grouting depth and rough edges, affecting the quality and appearance of the finished product.
[0003] When autoclaved aerated concrete (AAC) blocks are used as masonry wall materials, the horizontal mortar joints of the wall are generally required to be 3mm to 5mm. The mortar joints are small and difficult to treat. During on-site construction, workers do not have suitable tools to grout the AAC blocks, and sometimes they use any tools at hand, which results in poor grouting effect and difficulty in controlling the appearance of the finished product.
[0004] Therefore, it is necessary to invent a tool that is simple to manufacture, easy to carry, and reusable to solve the problem of poor quality of thin mortar joints caused by the indiscriminate use of tools due to readily available materials. Utility Model Content
[0005] In view of this, the present invention provides a sliding thin-layer grouting tool, which uses grouting columns to grout horizontal mortar joints of 3mm to 5mm, ensuring grouting quality and resulting in high-quality mortar joints.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A sliding thin-layer masonry grouting tool includes:
[0008] Support plate;
[0009] A handle, which is fixed to one side of the support plate;
[0010] The grouting column is fixed to the other side of the support plate to grout the masonry.
[0011] The beneficial effects of this utility model are that workers hold a handle and a mortar board and use the grouting column to grout the cement into the horizontal gaps of the masonry. The design of the grouting column can grout thin mortar joints of 3mm to 5mm, which can effectively ensure the grouting quality and improve construction efficiency.
[0012] Preferably, the handle is a U-shaped steel bar, with its open end fixed to the surface of the support plate. The steel bar is readily available and easy to obtain; its U-shape design allows for both fixation to the support plate and convenient hand-held operation by workers.
[0013] Preferably, it also includes a handle, which is fitted onto the closed end of the U-shaped reinforcing bar. The handle facilitates handheld operation of the grouting tool.
[0014] Preferably, the handle is made of wood or plastic. This reduces costs.
[0015] Preferably, the support plate is a galvanized steel plate with a thickness of not less than 1.2 mm, a zinc coating thickness of not less than 50 μm, and a surface roughness Ra of less than 10. Using a galvanized steel plate facilitates the cleaning of cement slurry that falls onto the support plate, and it also provides greater stability in both low and high temperature environments.
[0016] Preferably, the grouting column is a hemispherical steel bar welded to the side of the support plate away from the handle, and the two ends of the hemispherical steel bar are beveled. The hemispherical steel bar can adapt to the joint depth, ensuring the quality of grouting.
[0017] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a sliding thin-layer masonry grouting tool, which is simple to manufacture, easy to carry, sturdy and durable, safe, convenient to construct, and shortens the construction period; it has a simple appearance, flexible operation, and can be reused; it is green and environmentally friendly, saves energy, and ensures construction safety and grouting quality. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0019] Figure 1 This is a front view of the grouting tool provided by this utility model;
[0020] Figure 2 Side view of the grouting tool provided by this utility model;
[0021] Figure 3A front view of the grouting tool provided by this utility model in use.
[0022] in, Detailed Implementation
[0023] 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.
[0024] Participate in the attached Figures 1-3 According to an embodiment of the present invention, a sliding thin masonry grouting tool includes a support plate 1, a handle 2, and a grouting post 4. The support plate 1 is a galvanized steel plate with a thickness of not less than 1.2 mm, a galvanized layer thickness of not less than 50 μm, and a surface roughness Ra of less than 10. The handle 2 is fixed to one side of the support plate 1. The handle 2 is a U-shaped steel bar, which is formed by bending a 6 mm diameter circular steel bar, and its open end is fixed to the surface of the support plate 1. The grouting post 4 is fixed to the other side of the support plate 1 to grout the masonry 5. The grouting post 4 is a hemispherical steel bar and is welded to the side of the support plate 1 away from the handle 2. The two ends of the hemispherical steel bar are beveled, which reduces the damping coefficient during the grouting process and improves construction efficiency.
[0025] To further optimize the above technical solution and improve the performance of the grouting tool, a handle 3 is also included, which is fitted onto the closed end of the U-shaped steel bar. The handle 3 is made of wood or plastic.
[0026] The grouting tool in this embodiment is scientifically designed, simple to manufacture, easy to install, and made of lightweight materials that can be sourced from the construction site. It is easy to operate, speeds up the construction period, and reduces construction costs. It can be widely used in various buildings such as residential buildings and industrial buildings.
[0027] When making the grouting tool, first take a 250mm long, 6mm diameter coiled steel bar and bend both ends downwards at 90 degrees to form a U-shaped steel bar as a handle. The radius of the arc on both sides of the U-shaped steel bar is 30mm, and a 40mm diameter wooden handle (or plastic) is inserted through the middle to increase the friction between the palm and the tool. A pre-made 300mm*100mm*1.2mm galvanized steel plate (galvanized layer thickness of 50μm, surface roughness Ra of 10) is used as a support plate, which provides stability in both low and high temperature environments. The tool is designed to be welded to 6mm diameter grouting columns (semi-circular reinforcing bars). No preheating is required. The welding rod type is E4303, the steel material is Q235, and the reinforcing bar is HRB400 (annealing is not necessary). After welding, the two sides of the semi-circular reinforcing bar are ground and trimmed to a width of 5mm. The grinding equipment is a handheld beveling machine with a grinding wheel speed of 2000-6000rpm and a grinding head grit of 24-60 mesh. The end is trimmed into a 45-degree bevel to reduce the damping coefficient during use. The prepared handle is welded to a galvanized steel plate to integrate it into a sliding thin masonry grouting tool.
[0028] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.
[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A sliding trowel for thin jointing, characterized in that include: Support plate (1), the support plate (1) is a galvanized steel plate with a thickness of not less than 1.2 mm, a galvanized layer thickness of not less than 50 μm, and a surface roughness Ra of less than 10; Handle (2), the handle (2) is a U-shaped steel bar, the open end of which is fixed to the plate surface of the support plate (1); The grouting column (4) is a hemispherical steel bar with a diameter of 6mm and welded to the side of the support plate (1) away from the handle (2). The two ends of the hemispherical steel bar are provided with 45-degree bevels. The grouting column (4) can grout the thin mortar joints of the masonry (5) of 3mm to 5mm. Handle (3), the handle (3) is fitted onto the closed end of the U-shaped steel bar.
2. A sliding trowel according to claim 1, wherein, The handle (3) is made of wood or plastic.