A tool for large area floor joint cutting

Abstract

A tool for cutting grooves in large-area floor surfaces includes a cutting blade holder, a hinged support, and a handle. The cutting blade holder is a 50mm wide, 4mm thick, and 1m long hard alloy flat plate. A cutting blade is located below the cutting blade holder. The hinged support is positioned above the flat plate in the center and is also a 4mm thick hard alloy plate. The handle is a straight rod with a through hole at one end for bolt connection to the hinged support. A handle sleeve is located at one end of the rod, and a telescopic joint is located in the middle of the handle. This tool for cutting grooves in large-area floor surfaces has the advantages of simple structure, easy manufacturing, improved construction efficiency, reusability, high safety, and low cost.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically, it is a tool for cutting joints in large-area floor slabs. Background Technology

[0002] To prevent cracking, large-area, long-length concrete slabs such as basement garage floors, rigid protective layers on roofs, and roads require timely installation of expansion joints, with joint widths ranging from 2mm to 2cm. For concrete slabs in areas like floors and roads, joints are typically cut using a joint cutter within 1-2 days after concrete pouring. For rigid protective layers on roofs, 2cm thick extruded polystyrene (XPS) boards are used as pre-installed joints, followed by processes such as removing the XPS board and applying sealant. The joint cutting process is relatively complex and involves measures such as temporary power supply and dust control, resulting in higher construction costs.

[0003] Therefore, the known slit construction methods have the aforementioned inconveniences and problems. Utility Model Content

[0004] The purpose of this invention is to provide a safe and reliable tool for cutting grooves in large-area floor surfaces.

[0005] To achieve the above objectives, the technical solution of this utility model is:

[0006] A tool for cutting grooves in large-area floor surfaces, comprising a cutting blade holder, a hinged support, and a handle, characterized in that:

[0007] The cutting blade holder is a carbide flat plate with a width of 50mm, a thickness of 4mm, and a length of 1m; a cutting blade is provided below the cutting blade holder, which is a carbide vertical plate with a height of 20mm and a thickness of 2mm. The flat plate and the vertical plate are welded and fixed, and the welded parts on both sides are ground into an arc shape.

[0008] The hinge support is located in the middle above the flat plate. The hinge support is a 4mm thick hard alloy plate with bolt holes in the middle for connecting to the handle via a hinge.

[0009] The handle is a straight rod with a through hole at one end, which can be movably connected to the hinge support by bolts. The straight rod has a handle sleeve at one end and a telescopic joint in the middle of the handle.

[0010] The tool for cutting grooves in large-area floor surfaces according to this invention can be further improved by the following technical measures.

[0011] The aforementioned tool for cutting grooves in large-area floor surfaces, wherein the lower part and both ends of the vertical plate are ground into sharp cutting edges to reduce cutting resistance.

[0012] The aforementioned tool for cutting grooves in large-area floor surfaces, wherein the length of the telescopic, energy-saving, and flexibly adjustable handle is described.

[0013] After adopting the above technical solution, the tool of this utility model for cutting grooves in large-area floor slabs has the following advantages:

[0014] 1. The slit cutting tool has a simple structure and is easy to manufacture;

[0015] 2. Improves construction efficiency and allows for reuse;

[0016] 3. High security and low cost. Attached Figure Description

[0017] Figure 1 This is a front view of the slitting tool according to an embodiment of the present invention;

[0018] Figure 2 This is a side view of the slitting tool according to an embodiment of the present invention.

[0019] In the diagram: 1. Cutting knife, 2. Cutting knife holder, 3. Hinge support, 4. Expansion joint, 5. Handle. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments and accompanying drawings. Example

[0021] The present invention relates to a tool for cutting grooves in large-area floor surfaces, comprising a cutting blade holder, a hinged support, and a handle.

[0022] Please see now Figure 1-2 The cutting blade holder 2 is a carbide flat plate with a width of 50mm, a thickness of 4mm, and a length of 1m; a cutting blade 1 is provided below the cutting blade holder, which is a carbide vertical plate with a height of 20mm and a thickness of 2mm. The flat plate and the vertical plate are welded and fixed, and the welded parts on both sides are ground into an arc shape; the lower part and both ends of the vertical plate are ground into sharp edges to reduce cutting resistance.

[0023] The hinge support 3 is located in the middle above the flat plate. The hinge support is a 4mm thick hard alloy plate with bolt holes in the middle for connecting to the handle via a hinge.

[0024] The handle 5 is a straight rod with a through hole at one end, allowing it to be movably connected to a hinged support with bolts. A handle sleeve is located at one end of the straight rod, and a telescopic joint 4 is located in the middle of the handle. This telescopic joint allows for flexible adjustment of the handle's length.

[0025] This utility model possesses substantial features and significant technological advancements. The tool for cutting joints in large-area floor slabs utilizes a handle connected to a hinge, allowing for automatic adjustment of the handle's angle during use. Before the concrete reaches its final set, the user aligns the length of the cutting tool with the designed cutting position and moves it back and forth to gradually form the dividing joints. By altering the thickness and height of the vertical plate, cutting tools adaptable to different joint widths and depths can be manufactured.

[0026] The above embodiments are for illustrative purposes only and are not intended to limit the scope of this utility model. Those skilled in the art can make various modifications and variations without departing from the spirit and scope of this utility model. Therefore, all equivalent technical solutions should also fall within the scope of this utility model and should be defined by the claims.

Claims

1. A tool for cutting grooves in large-area floor surfaces, comprising a cutting blade holder, a hinged support, and a handle, characterized in that: The cutting blade holder is a carbide flat plate with a width of 50mm, a thickness of 4mm, and a length of 1m; a cutting blade is provided below the cutting blade holder, which is a carbide vertical plate with a height of 20mm and a thickness of 2mm. The flat plate and the vertical plate are welded and fixed, and the welded parts on both sides are ground into an arc shape. The hinge support is located above the center of the flat plate. The hinge support is a 4mm thick hard alloy plate with bolt holes in the center for connecting to the handle via a hinge. The handle is a straight rod with a through hole at one end, which can be movably connected to the hinge support by bolts. The straight rod has a handle sleeve at one end and a telescopic joint in the middle of the handle.

2. The tool for cutting grooves in large-area floor surfaces as described in claim 1, characterized in that, The lower part and both ends of the vertical plate are ground into sharp edges to reduce cutting resistance.

3. The tool for cutting joints in large-area floor slabs as described in claim 1, characterized in that, The telescopic, energy-saving, and flexible adjustable handle has a long length.

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