A rounded corner trowel with adjustable arc

By designing a rounded trowel with adjustable arc, the problem of femoral water seepage caused by the single arc of the traditional chamfering method is solved, and the convenience of adjusting the arc according to the needs of different parts is achieved, and the construction quality of the waterproof layer is improved.

CN222731016UActive Publication Date: 2025-04-08CHINA MCC5 GROUP CORP LTD
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Patent Information

Application Number
CN202420668566.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-02
Publication Date
2025-04-08
Estimated Expiration
2034-04-02

AI Technical Summary

Technical Problem

The traditional method of chamfering with the curve is single, which cannot meet the fineness requirements of different parts, resulting in the problem of chamfering with water.

Method used

A rounded trowel with an adjustable curve is designed, using a rectangular stainless steel plate, screw and handle structure. The radian adjustment of the trowel plate is achieved through the spiral connection between the screw and the handle and the adjustment of the nut.

Benefits of technology

The arc adjustment according to different parts and the hardness of the coil material is achieved, which is convenient for construction, avoids the problem of water seepage in the corner, and improves the construction quality of the waterproof layer.

✦ Generated by Eureka AI based on patent content.

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Abstract

A rounded corner trowel with adjustable curvature includes a trowel plate, a screw rod, and a handle, characterized in that: the trowel plate is a rectangular stainless steel plate, and a rectangular hole is provided on both sides of the center of the stainless steel plate; the screw rod has a diameter of 10 mm; the handle is an operating handle, and the handle has a diameter of 40 mm; wherein: the screw rod is spirally connected to the center of the handle, and the handle is fixed to the screw rod by nuts at both ends, and the two ends of the screw rod are respectively inserted into corresponding rectangular holes, so that the rounded corner trowel is adjusted by the nut. The utility model has the advantages of simple trowel structure, convenient production, curvature adjustment according to different parts, different fineness requirements, and hardness of the coil, and convenient construction.
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Description

Technical Field

[0001] The utility model relates to a trowel used for building plastering construction, in particular to a trowel with adjustable arc and rounded corners. Background Art

[0002] The waterproof layer is an essential process in construction projects. The base treatment of the waterproof layer has a significant impact on the quality of the waterproof layer construction, and the inner corners of the waterproof base are of utmost importance. If the corners are not rounded, the waterproof membrane and the base will not fit tightly. After the upper concrete and other loads are applied to the waterproof layer, the inner corner membrane is easily torn, resulting in water seepage. The traditional method of chamfering the inner corners uses a standardized arc trowel or PVC pipe for chamfering. The former has a single arc and a relatively fixed arc; the latter is even more so, which is less convenient.

[0003] Therefore, the known trowel structure has the above-mentioned inconveniences and problems. Utility Model Content

[0004] The purpose of the utility model is to provide a safe and reliable trowel with adjustable arc and rounded corners.

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

[0006] A trowel with adjustable curvature and rounded corners, comprising a trowel plate, a screw rod and a handle, characterized in that:

[0007] The trowel plate is a rectangular stainless steel plate, and a rectangular hole is provided on each side of the center of the stainless steel plate;

[0008] The screw diameter is 10 mm;

[0009] The handle is an operating handle, and the handle diameter is 40 mm;

[0010] The screw rod and the center of the handle are spirally connected, the handle is fixed on the screw rod by nuts at both ends, and the two ends of the screw rod are respectively inserted into corresponding rectangular holes to achieve a rounded corner trowel that is movably adjusted by the nuts.

[0011] The trowel with adjustable arc and rounded corners of the utility model can be further realized by adopting the following technical measures.

[0012] The aforementioned trowel with adjustable curvature and rounded corners, wherein the thickness of the stainless steel plate is ≥2 mm.

[0013] After adopting the above technical solution, the trowel with adjustable arc and rounded corners of the utility model has the following advantages:

[0014] 1. The trowel has a simple structure and is easy to make;

[0015] 2. Adjust the curvature according to different parts, different precision requirements and the hardness of the coiled material to facilitate construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a trowel plate with rectangular holes in an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of a trowel structure with a screw rod fixing an arc according to an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the trowel in use according to an embodiment of the utility model.

[0019] In the figure: 1 trowel plate, 2 rectangular hole, 3 screw, 4 handle, 5 fixing nut, 6 adjusting nut, 7 wall inner angle. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the embodiments and the accompanying drawings.

[0021] Example 1

[0022] Please refer to Figure 1-Figure 2 The utility model discloses a trowel with adjustable arc and rounded corners, comprising a trowel plate 1, a screw rod 3 and a handle 4.

[0023] The trowel plate is a rectangular stainless steel plate, with a rectangular hole 2 provided on each side of the center of the stainless steel plate, and the thickness of the stainless steel plate is 2 mm;

[0024] The screw diameter is 10 mm;

[0025] The handle is an operating handle, and the handle diameter is 40 mm;

[0026] The screw rod and the center of the handle are spirally connected, the handle is fixed to the screw rod by fixing nuts 5 at both ends, and the two ends of the screw rod are respectively inserted into corresponding rectangular holes to achieve a rounded corner trowel that can be flexibly adjusted by adjusting nuts 6.

[0027] The manufacturing method of the trowel of the utility model embodiment:

[0028] 1. Use a 2mm thick and elastic stainless steel plate to make a trowel according to the size of the atlas; open two rectangular holes in the middle of the trowel.

[0029] 2. Prepare a 10mm thick screw, make a 40mm thick handshake, and thread the screw in the middle of the two ends of the handshake according to the screw thread so that the screw can be screwed into the handshake and adjust the exposed length of the screw.

[0030] 3. Pass the screw through the rectangular holes on both sides of the trowel and fix it in the handle, and use the nut to fix the trowel plate to the appropriate curvature.

[0031] Figure 3 This is a schematic diagram of the trowel in use according to an embodiment of the utility model. The method of using the trowel with adjustable arc and rounded corners according to the utility model:

[0032] 1. Insert the screw into the handshake, adjust the screw to a suitable exposed length, and tighten the nut to fix the screw;

[0033] 2. Constrain the trowel plate to a suitable arc by adjusting the double nuts at both ends of the screw and the position in the rectangular hole, and tighten the nuts to prevent torsion;

[0034] 3. Carry out plastering construction at the areas where the wall's inner corners need to be rounded.

[0035] The utility model of the rounded corner trowel with adjustable curvature was used in the Guokong Bairui Oriental project in Wuwei City, Anhui Province, with remarkable results. When treating the base of the waterproof layer, the rounded corners of the inner corners at the root of the building were uniform and the curvature transition was smooth, providing conditions for the subsequent waterproofing construction of the inner corners. Subsequent construction has confirmed that the waterproofing at this location is firmly adhered and the waterproofing effect is good.

[0036] The above embodiments are only for the purpose of illustrating the present invention, but not for limiting the present invention. A person skilled in the relevant technical field may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.

Claims

1. A trowel with adjustable curvature and rounded corners, comprising a trowel plate, a screw rod and a handle, characterized in that: The trowel plate is a rectangular stainless steel plate, and a rectangular hole is provided on each side of the center of the stainless steel plate; The screw diameter is 10 mm; The handle is an operating handle, and the handle diameter is 40 mm; The screw rod and the center of the handle are spirally connected, the handle is fixed on the screw rod by nuts at both ends, and the two ends of the screw rod are respectively inserted into corresponding rectangular holes to achieve a rounded corner trowel that is movably adjusted by the nuts.

2. The trowel with adjustable curvature as claimed in claim 1, characterized in that: The thickness of the stainless steel plate is ≥2 mm.