Device and method for grinding corners of concrete columns

Abstract

The invention provides a concrete column corner grinding device and method, and relates to the technical field of constructional engineering, the device comprises a first main body, a second main body and a handle, the first main body comprises a first surface, and the first surface is provided with a plurality of first grinding assemblies; the second body is connected to the end of the first body and comprises a second surface, an included angle identical to the concrete column angle is formed between the second surface and the first surface, and the second surface is provided with a plurality of second grinding assemblies. The handle is connected to the back side of the first surface or the second surface. The concrete column corner grinding device is adopted in the concrete column corner grinding method, during construction, the original corner angles of a concrete square column are ground through the grinding machine, irregular small corner angles and planes generated after grinding are ground in an up-and-down sliding mode through the concrete column corner grinding device, and the small corner angle parts are ground away; afterwards, soot blowing and cleaning are conducted, and sharp corner angle arc transition is polished to meet the construction requirement.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and particularly relates to a device and method for grinding the corners of concrete columns. Background Art

[0002] In construction engineering, especially during the process of upgrading and reconstructing old houses and ancient buildings, the structural reinforcement plan for the original building involves carbon fiber reinforcement; before carbon fiber reinforcement, it is necessary to repair and grind the original base layer, especially the corner parts, which need to be flat and have a rounded transition at the corners. However, it is difficult to process the rounded transition section at the corner parts.

[0003] The traditional method is to use an electric angle grinder to grind the corners. After grinding once, new small corners will appear and need to be continuously ground. There are problems such as being difficult to control, being prone to over-grinding, and the transition part of the corners still affecting the bonding quality of the carbon fiber at the corner parts, and it is time-consuming and laborious.

[0004] Therefore, there is an urgent need for a device and method for grinding the corners of concrete columns to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a device and method for grinding the corners of concrete columns to solve the problems in the prior art that when using an electric angle grinder to grind the corners, new small corners will appear after grinding once and need to be continuously ground, there are problems such as being difficult to control, being prone to over-grinding, and the transition part of the corners still affecting the bonding quality of the carbon fiber at the corner parts, and it is time-consuming and laborious. The many technical effects that can be produced by the preferred technical solutions among the many technical solutions provided by the present invention are described in detail below.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A device for grinding the corners of concrete columns provided by the present invention includes:

[0008] A first main body, including a first surface, and a plurality of first grinding components are arranged on the first surface;

[0009] A second main body, connected to the end of the first main body, including a second surface, an included angle the same as that of the concrete column corner is provided between the second surface and the first surface, and a plurality of second grinding components are arranged on the second surface;

[0010] A handle, connected to the back side of the first surface or the second surface.

[0011] Preferably, the first main body and the second main body adopt a plate-like structure with the same structure.

[0012] Preferably, the first main body and the second main body are formed by bending the same plate-like structure.

[0013] Preferably, the first grinding assembly includes a plurality of electric welding bumps unevenly arranged on the first surface.

[0014] Preferably, the second grinding assembly 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 sections connected to the first main body or the second main body;

[0018] A gripping section having a "one" - shaped structure;

[0019] Two transition sections connected between the connecting section and the gripping section.

[0020] Preferably, a sheath is provided on the outer surface of the handle.

[0021] Preferably, the handle has a "C" - shaped structure.

[0022] A method for grinding the corners of a concrete column, using the above - mentioned device for grinding the corners of a concrete column, includes the following steps:

[0023] S1: Use a grinding wheel to grind the original edges and corners of the concrete square column;

[0024] S2: Use the above - mentioned device for grinding the corners of a concrete column to slide up and down and grind the irregular small edges and planes that appear after grinding, and grind off the edge parts;

[0025] S3: Blow and clean the dust from the ground edges and corners;

[0026] S4: Carry out the reinforcement operation of carbon fiber cloth on the concrete square column.

[0027] The device for grinding the corners of concrete columns provided by the present invention is provided with 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 arranged on the first surface; the second main body is connected to the end of the first main body and includes a second surface. An included angle identical to that of the corner of the concrete column is provided between the second surface and the first surface, and a plurality of second grinding components are arranged on the second surface; the handle is connected to the back side of the first surface or the second surface to facilitate the operator to hold during use. During grinding, the operator holds the handle to grind the angular part, so as to grind off the sharp corners and make the corners have a circular arc transition, achieving the purpose of corner grinding. It is applicable to the circular arc transition of the corners of concrete columns, which is beneficial to the circular arc transition during carbon fiber reinforcement, and avoids stabbing the carbon fiber cloth and affecting the quality of the carbon fiber cloth. This device for grinding the corners of concrete columns can be recycled after cleaning, improving work efficiency and saving costs.

[0028] The method for grinding the corners of concrete columns provided by the present invention is as follows: First, the original corners of the concrete square column are ground by a grinding wheel, and then the above-mentioned device for grinding the corners of concrete columns is used to slide up and down and grind the irregular small corners and planes that appear after grinding, grinding off the small corner parts; then blow and clean the ash, and grinding off the sharp corners and making a circular arc transition can meet the construction requirements. Brief Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention 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 invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 is a schematic structural diagram of an embodiment of the device for grinding the corners of concrete columns of the present invention;

[0031] Figure 2 is a schematic structural diagram of the device for grinding the corners of concrete columns during use;

[0032] Figure 3 is Figure 1 a schematic structural diagram from another angle.

[0033] In the figure: 1. First main body; 11. First surface; 110. First grinding component; 2. Second main body; 21. Second surface; 210. Second grinding component; 3. Handle; 31. Connection section; 32. Transition section; 33. Holding section; 4. Concrete column. Detailed Description of the Embodiments

[0034] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope protected by the present invention.

[0035] Figure 1 is a schematic structural diagram of this embodiment. Figure 2 is a schematic structural diagram when this embodiment is in use. As Figure 1 and Figure 2 shown, this embodiment provides a device for grinding the corners of concrete columns, including a first main body 1, a second main body 2 and a handle 3.

[0036] The first main body 1 includes a first surface 11, and a plurality of first grinding components 110 are arranged on the first surface 11; the second main body 2 is connected to the end of the first main body 1 and includes a second surface 21. An included angle same as that of the concrete column corner is provided between the second surface 21 and the first surface 11, and a plurality of second grinding components 210 are arranged on the second surface 21. During construction, the concrete column 4 is placed between the first main body 1 and the second main body 2, and is ground by the up-and-down sliding of the first grinding components 110 and the second grinding components 210 to grind off the small and sharp corner parts generated by grinding the concrete square column with a grinding wheel.

[0037] As Figure 1 and Figure 2 shown, the handle 3 is connected to the back side of the first surface 11 or the second surface 21 for easy grasping by the operator during use. During grinding, the operator holds the handle 3 to grind the corner part to achieve the purpose of grinding off the sharp corners and making the corners have a circular arc transition, which is suitable for the circular arc transition of the corners of concrete columns, so as to facilitate the circular arc transition during carbon fiber reinforcement and avoid stabbing the carbon fiber cloth and affecting the quality of the carbon fiber cloth. This device for grinding the corners of concrete columns can be recycled after cleaning, improving work efficiency and saving costs.

[0038] As an optional implementation manner, the first main body 1 and the second main body 2 adopt plate-like structures with the same structure. By making the first main body 1 and the second main body 2 of plate-like structures with the same size and structure, it is convenient to apply force to grind the corner parts of the concrete column.

[0039] Preferably, the first main body 1 and the second main body 2 in this embodiment are formed by bending the same plate-like structure.

[0040] With this setting, the connection stability between the first main body 1 and the second main body 2 is better, and it is more stable and reliable during use.

[0041] As an optional implementation manner, Figure 3 isFigure 1 Schematic structural diagram from another angle, such as Figure 3 shown. For ease of processing and operation, the first grinding assembly 110 in this embodiment includes a plurality of electric welding bumps unevenly arranged on the first surface 11.

[0042] For ease of processing and operation, the second grinding assembly 210 in this embodiment includes a plurality of electric welding bumps unevenly arranged on the second surface 21.

[0043] By setting the first grinding assembly 110 and the second grinding assembly 210 to have unevenly arranged electric welding bumps, it is beneficial to improve the grinding effect. This makes the tool simpler and more convenient, more suitable for operating with a handheld handle, and has simple operation, convenient construction, quality assurance. It can also reduce the electricity consumption process and save resources.

[0044] As an optional implementation manner, the lengths of the first main body 1 and the second main body 2 are both set to be not less than 200 mm, and the thickness is set to be not less than 4 mm.

[0045] Preferably, the first main body 1 and the second main body 2 in this embodiment adopt ∠30*30*4 equal-angle steel with a length of 200 mm. Uneven electric welding points are welded with electrodes at the inner fillet and both sides of the angle steel, and a handheld handle is welded at the outer fillet part of the angle steel. In this way, the material is easier to obtain, easy to process, saves tool preparation time, reduces working hours, and improves construction efficiency. Moreover, this concrete column corner grinding device can be recycled multiple times after cleaning, improving work efficiency and saving costs.

[0046] As an optional implementation manner, the handle 3 includes a connecting section 31, a transition section 32, and a gripping section 33. Among them, two groups of connecting sections 31 are provided and are connected to the first main body 1 or the second main body 2; the gripping section 33 adopts a "one" - shaped structure for easy gripping operation. Two groups of transition sections 32 are provided and are connected between the connecting section 31 and the gripping section 33.

[0047] The handle 3 in this embodiment adopts a "C" - shaped structure.

[0048] As an optional implementation manner, a sheath is provided on the outer surface of the handle 3. Optionally, anti - slip patterns are provided on the outer surface of the sheath to increase the friction at the contact part between the handle 3 and the operator's hand, avoiding problems such as slipping during use.

[0049] This embodiment also provides a method for grinding the corners of a concrete column. Using the above - mentioned concrete column corner grinding device, it includes the following steps:

[0050] S1: Use a grinding wheel to grind the original edges and corners of the concrete square column;

[0051] In this embodiment, first, the original edges and corners of the concrete square column are polished by a grinding wheel, which can improve the construction efficiency and effect, and is more time-saving and labor-saving.

[0052] S2: Use the device for grinding the corners of concrete columns to slide up and down and grind the irregular small edges and corners and planes that appear after grinding, and grind off the corner parts;

[0053] For the concrete square column polished by the grinding wheel, then use the device for grinding the corners of concrete columns to further polish the irregular small edges and corners and planes that appear after grinding. Through the up and down sliding grinding of the first grinding component 110 and the second grinding component 210 of the device for grinding the corners of concrete columns, the corner parts are further processed. After grinding, the excess edges and corners and planes are eliminated, meeting the requirements of arc transition at the corner parts, without damaging the original base structure, and meeting the requirement of not being able to chisel and patch new ones excessively.

[0054] S3: Blow and clean the dust from the polished edges and corners;

[0055] S4: Carry out the reinforcement operation of carbon fiber cloth on the concrete square column.

[0056] Adopt this method for arc grinding of the corners of the concrete column before carbon fiber reinforcement. First, polish the original edges and corners of the concrete square column with a grinding wheel, and then use the device for grinding the corners of concrete columns to slide up and down and grind the irregular small edges and corners and planes that appear after grinding, and grind off the small corner parts; then blow and clean the dust. The arc transition of the sharp corners ground off can meet the construction requirements.

[0057] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A device for grinding the corners of concrete columns, characterized in that, Including: A first main body, including a first surface, on which a plurality of first grinding components are arranged; A second main body, connected to an end of the first main body, including a second surface, which forms the same included angle with the first surface as that of the corner of a concrete column, and a plurality of second grinding components are arranged on the second surface; A handle, connected to the back side of the first surface or the second surface.

2. The device 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 device for grinding the corners of concrete columns according to claim 2, wherein: 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 welding bumps unevenly arranged 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 welding bumps unevenly arranged 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 sections, connected to the first main body or the second main body; A holding section, adopting a "one" - shaped structure; Two transition sections, connected between the connecting section and the holding section.

8. The device for grinding the corners of concrete columns according to claim 7, characterized in that, A sheath is arranged 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.

10. A method for grinding the corners of concrete columns, characterized in that, Using the device for grinding the corner of a concrete column according to any one of claims 1 - 9, the method includes the following steps: S1: Grinding the original edges and corners of a concrete square column with a grinding wheel; S2: Using the device for grinding the corner of a concrete column to slide up and down on the irregular small edges and planes after grinding, and grinding off the edge parts; S3: Blowing and cleaning the edges and corners after grinding; S4: Conducting the reinforcement operation of carbon fiber cloth on the concrete square column.

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