A device for polishing a corner of a concrete column
By designing a concrete column corner grinding device, the grinding components are used to achieve a rounded transition of the corners, which solves the problem of the difficulty in controlling the grinding of electric angle grinders, and improves construction efficiency and carbon fiber bonding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MCC TIANGONG GROUP
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-29
AI Technical Summary
In existing technologies, when using an electric angle grinder to grind edges, new small edges are easily created, which are difficult to control. This results in the edge transition part affecting the carbon fiber bonding quality and is time-consuming and labor-intensive.
A concrete column corner grinding device was designed, including a first body, a second body and a handle. A grinding component is set on the surface of the body. The device is operated by holding the handle and uses the grinding component to grind the corner to achieve a rounded transition of the corner.
It effectively eliminates sharp edges and corners, ensuring smooth transitions between edges, thus improving the quality and construction efficiency of carbon fiber reinforcement and saving costs.
Smart Images
Figure CN224295508U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, and in particular to a device for grinding the corners of concrete columns. Background Technology
[0002] In construction projects, especially in the renovation and upgrading of old houses and ancient buildings, carbon fiber reinforcement is often used to strengthen the structure of the original building. Before carbon fiber reinforcement, the original base layer, especially the corners, needs to be repaired and polished to ensure it is flat and has rounded corners. However, it is difficult to handle the rounded corner sections.
[0003] The traditional method involves using an electric angle grinder to polish the edges. After one round of polishing, new small edges will appear, requiring further polishing. This method is difficult to control, prone to over-polishing, and the transitional edges can still affect the bonding quality of the carbon fiber edges, and it is also time-consuming and labor-intensive.
[0004] Therefore, there is an urgent need for a device for grinding the corners of concrete columns to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this utility model is to provide a device for grinding the corners of concrete columns, to solve the problems of existing technologies that use electric angle grinders to grind corners. After one round of grinding, new small corners appear, requiring further grinding. These problems include difficulty in control, over-grinding, and the transitional corners still affecting the bonding quality of carbon fiber corners, all of which are time-consuming and labor-intensive. The various technical effects of the preferred technical solutions provided by this utility model are detailed below.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] This utility model provides a device for grinding the corners of concrete columns, comprising:
[0008] A first body includes a first surface, and a plurality of first polishing components are disposed on the first surface;
[0009] The second body is connected to the end of the first body and includes a second surface. The second surface and the first surface are provided with an angle that is the same as the angle of the concrete column corner, and the second surface is provided with a plurality of second grinding components.
[0010] A handle is attached to the back side of the first surface or the second surface.
[0011] Preferably, the first body and the second body adopt the same plate structure.
[0012] Preferably, the first body and the second body are formed by bending the same plate-like structure.
[0013] Preferably, the first grinding component includes a plurality of electric welding bumps unevenly arranged on the first surface.
[0014] Preferably, the second grinding component includes a plurality of electric welding bumps unevenly arranged on the second surface.
[0015] Preferably, the lengths of the first main body and the second main body are both set to be not less than 200 mm, and the thicknesses are set to be not less than 4 mm.
[0016] Preferably, the handle includes:
[0017] Two connecting segments connected to the first main body or the second main body;
[0018] A gripping segment with a "one" - shaped structure;
[0019] Two transition segments connected between the connecting segments and the gripping segment.
[0020] Preferably, a sheath is provided on the outer surface of the handle.
[0021] Preferably, the handle has a "C" - shaped structure.
[0022] The device for grinding the corners of a concrete column provided by the present utility model includes a first main body, a second main body and a handle. The first main body includes a first surface, and a plurality of first grinding components are provided on the first surface; the second main body is connected to the end of the first main body, includes a second surface, an included angle is provided between the second surface and the first surface, and a plurality of second grinding components are provided on the second surface; the handle is connected to the back side of the first surface or the second surface for an operator to hold during use. During grinding, the operator holds the handle to grind the corner part, so as to grind off the sharp corners to make the corners have an arc transition, achieving the purpose of corner grinding. It is applicable to the arc transition of the corners of a concrete column, which is beneficial for the arc transition during carbon fiber reinforcement, avoiding刺伤 the carbon fiber cloth and affecting the quality of the carbon fiber cloth. This device for grinding the corners of a concrete column can be recycled after cleaning, improving work efficiency and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0024] Figure 1 It is a schematic structural diagram of an embodiment of the device for grinding the corners of a concrete column of the present utility model;
[0025] Figure 2 This is a schematic diagram of the structure of the concrete column corner grinding device of this utility model in use;
[0026] Figure 3 yes Figure 1 A structural diagram from another angle.
[0027] In the figure: 1. First body; 11. First surface; 110. First grinding component; 2. Second body; 21. Second surface; 210. Second grinding component; 3. Handle; 31. Connecting section; 32. Transition section; 33. Holding section; 4. Concrete column. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0029] Figure 1 This is a structural schematic diagram of this embodiment. Figure 2 This is a schematic diagram of the structure used in this embodiment, as shown below. Figure 1 and Figure 2 As shown, this embodiment provides a device for grinding the corners of concrete columns, including a first body 1, a second body 2, and a handle 3.
[0030] The first body 1 includes a first surface 11, and the first surface 11 is provided with a plurality of first grinding components 110; the second body 2 is connected to the end of the first body 1, and includes a second surface 21, the second surface 21 and the first surface 11 are provided with an angle, and the second surface 21 is provided with a plurality of second grinding components 210; during construction, the concrete column 4 is placed between the first body 1 and the second body 2, and the small sharp edges and corners generated by grinding the concrete square column by the first grinding component 110 and the second grinding component 210 are ground off by sliding up and down.
[0031] like Figure 1 and Figure 2As shown, the handle 3 is connected to the back of the first surface 11 or the second surface 21 for easy gripping by the operator. During grinding, the operator holds the handle 3 to grind the sharp edges to achieve a rounded transition, thus achieving the purpose of corner grinding. This is suitable for rounding the corners of concrete columns, facilitating a smooth transition during carbon fiber reinforcement and preventing damage to the carbon fiber cloth, which could affect its quality. This concrete column corner grinding device can be reused after cleaning, improving efficiency and saving costs.
[0032] As an optional implementation, the first body 1 and the second body 2 adopt the same plate structure. By using plate structures with identical dimensions and structures to manufacture the first body 1 and the second body 2, it is easier to apply force and grind the corner of the concrete column.
[0033] Preferably, in this embodiment, the first body 1 and the second body 2 are formed by bending the same plate-like structure.
[0034] With this configuration, the connection between the first main body 1 and the second main body 2 is more stable, making it more reliable and stable in use.
[0035] As an optional implementation method, Figure 3 yes Figure 1 Another structural diagram, such as Figure 3 As shown, for ease of processing and operation, the first grinding assembly 110 in this embodiment includes a plurality of weld bumps unevenly arranged on the first surface 11.
[0036] To facilitate processing and operation, the second grinding assembly 210 in this embodiment includes a plurality of weld bumps unevenly arranged on the second surface 21.
[0037] By designing both the first grinding component 110 and the second grinding component 210 with unevenly distributed welded bumps, the grinding effect can be improved. This makes the tool simpler and more convenient, more suitable for handheld operation, and easier to operate, ensuring quality while reducing electricity consumption and saving resources.
[0038] As an optional implementation, the length of both the first body 1 and the second body 2 is set to be no less than 200 mm and the thickness is set to be no less than 4 mm.
[0039] Preferably, in this embodiment, the first main body 1 and the second main body 2 are made of 200mm long ∠30*30*4 equilateral angle steel. Uneven weld points are created at the inner corner and both sides of the angle steel using welding rods, and a hand handle is welded to the outer corner of the angle steel. This makes the material easier to obtain and process, saves tool preparation time, reduces labor hours, and improves construction efficiency. Furthermore, this concrete column corner grinding device can be reused multiple times after cleaning, improving efficiency and saving costs.
[0040] As an optional implementation, the handle 3 includes a connecting section 31, a transition section 32, and a gripping section 33. The connecting section 31 is provided in two sets and connected to either the first main body 1 or the second main body 2; the gripping section 33 adopts an "I"-shaped structure to facilitate gripping operation. The transition section 32 is provided in two sets and connected between the connecting section 31 and the gripping section 32.
[0041] In this embodiment, the handle 3 adopts a "C" shaped structure.
[0042] As an optional implementation, a protective sleeve is provided on the outer surface of the handle 3. Optionally, the outer surface of the protective sleeve is provided with protective texture to increase the friction between the handle 3 and the part that contacts the operator's hand, and to avoid slippage and other problems during use.
[0043] This embodiment also provides a method for grinding concrete column corners, using the aforementioned concrete column corner grinding device, including the following steps:
[0044] S1: Use a grinding wheel to grind the original edges and corners of the concrete square column;
[0045] In this embodiment, the original edges and corners of the concrete square column are first ground with a grinding wheel, which can improve construction efficiency and effect, and save more time and effort.
[0046] S2: Use a concrete column corner grinding device to grind the irregular small edges and flat surfaces that appear after grinding, and grind away the edge parts;
[0047] For concrete square columns that have been ground by a grinding wheel, a concrete column corner grinding device is used to further grind the irregular small edges and flat surfaces that appear after grinding. The first grinding component 110 and the second grinding component 210 of the concrete column corner grinding device slide up and down to grind the edges and corners. After grinding, excess edges and flat surfaces are eliminated to meet the requirements of rounded transition at the edges and corners, without damaging the original base structure, and also to meet the requirement that no excessive chiseling and patching is allowed.
[0048] S3: Grind and clean the edges and corners;
[0049] S4: Reinforce the concrete square columns with carbon fiber cloth.
[0050] The method of rounding the corners of concrete columns before carbon fiber reinforcement involves first grinding the original corners of the concrete square column with a grinding wheel, and then using a concrete column corner grinding device to grind the irregular small corners and flat surfaces that appear after grinding, removing the small corner parts; after that, dust is blown out to clean, and the rounded transition after grinding off the sharp corners can meet the construction requirements.
[0051] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A device for grinding the corners of concrete columns, characterized in that, Comprising: A first main body, including a first surface, on which a plurality of first grinding components are provided; A second main body, connected to an end of the first main body, including a second surface, an angle identical to that of a concrete column corner is provided between the second surface and the first surface, and a plurality of second grinding components are provided on the second surface; A handle, connected to the back side of the first surface or the second surface.
2. The apparatus for grinding the corners of concrete columns according to claim 1, characterized in that: The first main body and the second main body adopt a plate-like structure with the same structure.
3. The apparatus for grinding the corners of concrete columns according to claim 2, characterized in that: The first main body and the second main body are formed by bending the same plate-like structure.
4. A device for grinding the corners of concrete columns according to any one of claims 1-3, characterized in that: The first grinding component includes a plurality of unevenly arranged electric welding bumps on the first surface.
5. A device for grinding the corners of concrete columns according to any one of claims 1-3, characterized in that: The second grinding component includes a plurality of unevenly arranged electric welding bumps on the second surface.
6. A device for grinding the corners of concrete columns according to any one of claims 1-3, characterized in that: The lengths of the first main body and the second main body are both set to be not less than 200 mm, and the thickness is set to be not less than 4 mm.
7. A device for grinding the corners of concrete columns according to any one of claims 1-3, characterized in that, The handle includes: Two connecting segments, connected to the first main body or the second main body; A holding segment, adopting a "one" - shaped structure; Two transition segments, connected between the connecting segment and the holding segment.
8. The apparatus for grinding the corners of concrete columns according to claim 7, characterized in that, A sheath is provided on the outer surface of the handle.
9. A device for grinding the corners of concrete columns according to any one of claims 1-3, characterized in that: The handle adopts a "C" - shaped structure.