Dividing joint sharp corner spatula

Abstract

The utility model discloses a dividing joint sharp-corner spatula, which relates to the technical field of facilities for building construction and comprises a base plate, a handle fixedly arranged on the upper surface of the base plate, an internal corner spatula vertically arranged on the side edge of the base plate and a sharp-corner spatula arranged on the lower surface of the base plate, and the directions of the internal corner spatula and the sharp-corner spatula are parallel to the axis direction of the handle. When a worker constructs a concrete protection layer, a concrete finishing surface is calendered, the position of a dividing joint is set on a flat point pull line, the position of a dividing line is placed by a guiding rule, and the internal corner cutter is attached to the guiding rule, so that the accuracy and the consistency of the dividing line are ensured, and the dividing joint is neater and straighter; by using the sharp-angled spatula, a constructor can accurately cut the concrete to form the required separation seam, additional steps or materials are not needed, the operation efficiency is improved, and the construction time is saved. The device is simple in structure, convenient to manufacture and low in operation difficulty, thereby bringing convenience to users.

Description

Technical Field

[0001] The utility model relates to the technical field of construction facilities, in particular to a sharp-corner trowel for dividing joints. Background Art

[0002] In the construction field, dividing joints are gaps pre-set on the roof leveling layer, rigid waterproof layer, and rigid protective layer to reduce cracks. In practice, the rigid protective layer usually has V-shaped grooves cut on its surface, called surface dividing joints. Traditional dividing joint processes usually involve embedding ceramic tiles or foam boards at the dividing joint positions, and then chiseling after the concrete solidifies. However, this method has some problems: due to the previously laid foam boards, asphalt oil cannot be directly poured after removal, and a layer of sand needs to be poured first to protect the bottom waterproof layer before the asphalt oil can be poured. This process is not only time-consuming and laborious but also causes material waste, and there will be many problems in later maintenance.

[0003] Therefore, to solve these problems, a practical tool becomes crucial. The design of this tool aims to simplify the dividing joint treatment process, improve efficiency, and reduce material waste. By using this tool, operators can easily handle dividing joints, including surface dividing joints, without having to embed ceramic tiles or foam boards first. The innovative design of this tool can directly cut and smooth at the required positions, avoiding the complex steps and material waste in the traditional method. The introduction of such a tool not only improves construction efficiency but also reduces the problems faced in subsequent maintenance and repair, thus bringing substantial benefits to the construction industry. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a sharp-corner trowel for dividing joints, aiming to simplify the dividing joint treatment process, improve efficiency, and reduce material waste. By using this tool, operators can easily handle dividing joints, including surface dividing joints, without having to embed ceramic tiles or foam boards first. The innovative design of this tool can directly cut and smooth at the required positions, avoiding the complex steps and material waste in the traditional method.

[0005] To solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0006] The sharp-corner trowel for dividing joints includes a substrate, a handle fixedly arranged on the upper surface of the substrate, an internal corner knife vertically arranged on the side of the substrate, and a sharp-corner trowel arranged on the lower surface of the substrate. The directions of the internal corner knife and the sharp-corner trowel are parallel to the axis direction of the handle.

[0007] Further preferably, the surface of the handle is designed with anti-slip textures, or a protective sleeve is sleeved on the handle, or the handle is wrapped with a plastic sleeve provided with anti-slip stripes.

[0008] Further preferably, the pointed trowel is V-shaped and fixedly installed on the lower surface of the substrate or detachably connected to the lower surface of the substrate.

[0009] Further preferably, the V-shaped cutting edge angle of the pointed trowel is 45 - 75 degrees.

[0010] The beneficial effects of adopting the above technical solutions are as follows:

[0011] In the present utility model, when workers construct the concrete protective layer, while finishing and pressing the concrete surface, the flat points are surveyed and marked on it, and the positions of the dividing joints are set by pulling lines. The dividing lines are placed with a straightedge, and the inner corner knife is attached to the straightedge to ensure the accuracy and consistency of the dividing lines, making the dividing joints neater and straighter; by using the pointed trowel, the construction personnel can precisely cut the concrete to form the required dividing joints without additional steps or materials, improving the operation efficiency and saving construction time. The device has a simple structure, is convenient to manufacture, and has a low operation difficulty, thus bringing convenience to users. Description of the Drawings

[0012] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 is a schematic diagram of the overall structure of the present utility model in another direction;

[0014] In the figure: 1 - substrate; 2 - handle; 3 - inner corner knife; 4 - pointed trowel. Detailed Embodiments

[0015] To make the features and advantages of the present utility model more obvious and understandable, the following will clearly and completely describe the technical solution in combination with the drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Embodiment 1

[0016] As Figure 1-2 shown, the pointed trowel for the dividing joint includes a substrate 1, a handle 2 fixedly arranged on the upper surface of the substrate 1, an inner corner knife 3 vertically arranged on the side of the substrate 1, and a pointed trowel 4 arranged on the lower surface of the substrate 1. The directions of the inner corner knife 3 and the pointed trowel 4 are parallel to the axis direction of the handle 2. Embodiment 2

[0017] A standard type dividing joint sharp corner trowel, comprising a steel substrate 1, a plastic sleeve handle 2 wrapped with anti-slip stripes or anti-slip textures designed on the surface of the handle 2, a vertically arranged stainless steel inside corner trowel 3, and a fixedly installed 45-degree V-shaped sharp corner trowel 4. During use, according to the flat point to position the dividing joint, fit the inside corner trowel 3 with a straightedge, and use the sharp corner trowel 4 for cutting to ensure accurate cutting. Hold the handle 2 to stabilize the position, and forcefully cut through the concrete to improve the construction efficiency and quality. Embodiment 3

[0018] The advanced type dividing joint sharp corner trowel adopts an aluminum alloy substrate 1, a wooden handle 2 with a protective sleeve installed outside, a V-shaped sharp corner trowel connected by threads, and an inside corner trowel 3 with a length half of the width of the substrate 1. The tip part of the sharp corner trowel 3 can be designed into a threaded structure, cooperating with a nut or a knob, and the depth of the tool tip can be adjusted by rotation. Construction workers can rotate and adjust as needed to make the tool tip extend or retract to adapt to materials of different thicknesses.

[0019] In the present utility model, when workers construct the concrete protective layer, while finishing and pressing the surface of the concrete, the position of the dividing joint is set by measuring the flat point and pulling a line on it. A straightedge is placed at the position of the dividing line, and by fitting the inside corner trowel with the straightedge, the accuracy and consistency of the dividing line are ensured, making the dividing joint neater and straighter; by using the sharp corner trowel, construction workers can precisely cut through the concrete to form the required dividing joint, without the need for additional steps or materials, improving the operation efficiency and saving construction time. The device has a simple structure, is convenient to manufacture, and has a low operation difficulty, thus bringing convenience to users.

[0020] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the scope protected by the claims of the present utility model.

Claims

1. Sharp-angle spatula for partition seams, characterized by: It comprises a base plate (1), a handle (2) fixedly arranged on the upper surface of the base plate (1), a corner knife (3) arranged perpendicularly on the side of the base plate (1), and a pointed-angle spatula (4) arranged on the lower surface of the base plate (1), wherein the directions of the corner knife (3) and the pointed-angle spatula (4) are parallel to the axial direction of the handle (2).

2. The trowel for cutting corners according to claim 1, characterized in that: The surface of the handle (2) is designed with an anti-slip texture, or the handle (2) is covered with a protective cover, or the handle (2) is wrapped with a plastic cover with anti-slip stripes.

3. The trowel for cutting corners according to claim 1, characterized in that: The pointed spatula (4) is V-shaped and is fixedly mounted on the lower surface of the substrate (1) or detachably connected to the lower surface of the substrate (1).

4. The trowel for cutting corners according to claim 3, characterized in that: The V-shaped blade angle of the pointed spatula (4) is 45-75 degrees.

Images