Special plastering trowel for angular line forming

Abstract

The utility model discloses a special plastering trowel for angular line forming. The utility model aims to solve the problems that the existing special claying knife for forming angular lines cannot form sharp right-angle wall angular lines, the multifunctional claying knife for forming the sharp right-angle wall angular lines is often imperfect, the operation is not smooth, the adjustment is troublesome and the like. According to the technical scheme, the cutter comprises a cutter body with a right-angle section and a handle connected to the corner of the cutter body, the cutter body is composed of a body base with the right-angle section formed by bending a metal material, a first forming cutter plate and a second forming cutter plate, and the first forming cutter plate and the second forming cutter plate are fixedly connected to the two planes of the outer side of the body base respectively. The handle is connected and fixed to the corner of the inner side of the main body seat, the first forming cutter plate and the second forming cutter plate form a sharp right-angle forming angle through close contact of the contact edges of the first forming cutter plate and the second forming cutter plate, and the outer side of the main body seat is in an inwards-concave right-angle section shape or an outwards-convex right-angle section shape.

Description

Technical Field

[0001] This utility model relates to tools used for smoothing and filling plaster, specifically a special plastering trowel for forming corner lines. It is specifically designed for forming sharp right-angled wall corner lines. Background Technology

[0002] Currently, commonly used corner-forming trowels include an integrated tool disclosed in Chinese Patent No. CN216840443U for quickly forming the inside and outside corners of wall plastering. This tool consists of a blade body bent into a right-angle cross-section from a single piece of metal and a handle connected to either the outer or inner corner of the blade body. The handle connected to the outer corner of the blade body forms the corner line for outside corners; the handle connected to the inner corner of the blade body forms the corner line for inside corners. Because the blade body of this type of trowel has small rounded corners when bent into a right-angle cross-section, the resulting wall corner line is also a right angle with a small rounded corner end. However, this type of trowel is unsuitable for situations where sharp right-angle wall corner lines are sometimes required in construction or decoration projects.

[0003] Chinese Patent No. CN213062801U discloses a multifunctional trowel, the structure of which includes a flat plate, a handle, a fixed rod, a threaded cylinder, a pad, a threaded cap, a rubber sheet, a support rod, a threaded connecting rod, a rubber ring, a fixed frame, a vertical plate, a limiting ring, and sliding balls. The top of the flat plate is fixedly connected to the handle, and the top of the fixed plate is also fixedly connected to the fixed rod. Each of the fixed rods has a threaded cylinder fixedly connected to its top. A support rod is fixedly connected to the left side of the fixed rod, and a pad is fixedly connected to the left side of the support rod. Threaded caps are threadedly embedded on both sides of the threaded cylinder, and the threaded caps are bonded to the middle of the rubber sheet. A threaded connecting rod is threadedly threaded through the middle of the threaded cylinder. The left side of the threaded connecting rod is movably inserted through the middle of the rubber ring, and the rubber ring is embedded and bonded to the right side of the fixed frame. The right side of the fixed frame is fixedly connected to the right side of the vertical plate. The left side of the threaded connecting rod is fixedly inserted through the middle of two limiting rings. Several sliding balls are movably placed on the inner wall of the fixed frame. While this multi-functional trowel can create sharp right-angled wall corners, it has the following drawbacks: First, the right-angle plate is fixed at a single point cantilever, resulting in poor stability and positional stability. This makes the sharp right angle formed with the flat plate prone to deformation, often leading to imperfect wall corners. Second, the handpiece is not fixed to the corner of the trowel body, making operation inconvenient when creating wall corners, affecting work efficiency and quality. Third, its complex structure and cumbersome adjustments also affect work efficiency. Utility Model Content

[0004] To overcome the shortcomings of existing corner-forming trowels, such as their inability to form sharp right-angle wall corners, and the fact that multi-functional trowels often produce imperfect, inconvenient, and difficult-to-adjust corners, the purpose of this invention is to provide an improved corner-forming trowel that overcomes the deficiencies of existing technologies.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a special trowel with corner forming, comprising a trowel body with a right-angle cross-section and a handle connected to the corner of the trowel body, characterized in that: the trowel body is composed of a main body base bent into a right-angle cross-section from a piece of metal material, and a first forming trowel plate and a second forming trowel plate respectively connected and fixed to two outer planes of the main body base; the handle is connected and fixed to the inner corner of the main body base; the first forming trowel plate and the second forming trowel plate form a sharp right-angle forming angle by the close contact of their contact edges; the outer side of the main body base is a concave right-angle cross-section or a convex right-angle cross-section.

[0006] The outer side of the main body of the above technical solution is a concave right-angle cross-section, and the trowel is a special trowel for forming the external corner line of the wall; the outer side of the main body is a convex right-angle cross-section, and the trowel is a special trowel for forming the internal corner line of the wall.

[0007] The close contact described in the above technical solution is achieved by precision machining to ensure a high degree of flatness at the contact edges of the first and second forming blades, and is guaranteed by the reliable and stable connection and fixation between the main body and the first and second forming blades.

[0008] The outer side of the main body of the above technical solution is a convex right-angle cross-section. The contact edges of the first forming blade and the second forming blade can be inclined inward at 45 degrees. The contact edges of the first forming blade and the second forming blade are in close contact with each other to form a sharp right-angle forming angle.

[0009] The outer side of the main body of the above technical solution is a concave right-angle cross-section. The contact edge of the first forming blade can contact the main body, and the contact edge of the first forming blade can be inclined inward at less than or equal to 45 degrees. The contact edge of the second forming blade can contact the first forming blade, and the contact edge of the second forming blade can be inclined inward at less than or equal to 90 degrees. The close contact between the contact edge of the second forming blade and the first forming blade forms a sharp right-angle forming angle.

[0010] The surface on the main body of the above technical solution that connects and fixes the first forming blade or the second forming blade can be provided with a first nail hole and a second nail hole. The back of the first forming blade or the second forming blade can be provided with a first screw and a second screw corresponding to the first nail hole and the second nail hole, respectively. The first forming blade or the second forming blade passes through the first screw and the second screw on its back side through the corresponding first nail hole and the second nail hole on the main body, respectively. Then, the first forming blade or the second forming blade is locked onto the main body by nuts that cooperate with the first screw and the second screw, respectively.

[0011] In the above technical solution, the diameters of the first and second nail holes can both be larger than the outer diameters of the first and second screws, leaving a gap for adjusting and fixing the position of the first or second forming blade.

[0012] The beneficial effects of this utility model are as follows: The blade body is composed of a main body base bent from a single piece of metal into a right-angled cross-section, and a first forming blade plate and a second forming blade plate respectively connected and fixed to the two outer planes of the main body base. The handle is connected and fixed to the inner corner of the main body base. The first and second forming blade plates each form a sharp right-angle forming angle by their contact edges being in close contact with each other. The outer side of the main body base is either a concave right-angled cross-section or a convex right-angled cross-section. Therefore, this special trowel for corner forming can form perfect sharp right-angled wall corners. Compared with multi-functional trowels, it has a forming angle that is less prone to deformation, forms perfect sharp right-angled wall corners, avoids adjustment difficulties during use, and is easy to operate, effectively improving work efficiency and quality.

[0013] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the present invention, wherein the outer side of the main body base has an outwardly convex right-angled cross-section.

[0015] Figure 2 yes Figure 1 A three-dimensional schematic diagram showing the first and second forming blades separated from the main body.

[0016] Figure 3 yes Figure 1 Enlarged diagram of the front side view.

[0017] Figure 4 This is a three-dimensional schematic diagram of another embodiment of the present invention, wherein the outer side of the main body base is a concave right-angled cross-section.

[0018] Figure 5 yes Figure 4A three-dimensional schematic diagram showing the first and second forming blades separated from the main body.

[0019] Figure 6 yes Figure 4 Enlarged diagram of the front side view.

[0020] In the figure: 1. Blade body; 2. Handle; 3. Main body base; 4. First forming blade plate; 5. Second forming blade plate; 6. Contact edge of the first forming blade plate; 7. Contact edge of the second forming blade plate; 8. Forming angle; 9. Plane; 10. First nail hole; 11. Second nail hole; 12. First screw; 13. Second screw; 14. Nut. Detailed Implementation

[0021] Reference Figures 1-3 An embodiment of this corner-forming special trowel includes a trowel body 1 with a right-angle cross-section and a handle 2 connected to the corner of the trowel body 1. The trowel body 1 is characterized by being composed of a main body base 3 formed by bending a piece of metal into a right-angle cross-section, and a first forming blade 4 and a second forming blade 5 respectively connected and fixed to two outer planes of the main body base 3. The handle 2 is connected and fixed to the inner corner of the main body base 3. The first forming blade 4 and the second forming blade 5 form a sharp right-angle forming angle 8 by their contact edges 6 and 7 in close contact. The outer side of the main body base 3 has an outwardly convex right-angle cross-section.

[0022] like Figure 3 As shown, the contact edges 6 and 7 of the first forming blade 4 and the second forming blade 5 are inclined inward at 45 degrees respectively, and the contact edges 6 and 7 of the first forming blade 4 and the second forming blade 5 are in close contact with each other to form a sharp right angle forming angle 8.

[0023] The main body 3 has a first nail hole 10 and a second nail hole 11 on the plane 9 on which the first forming blade 4 or the second forming blade 5 is connected and fixed. The back of the first forming blade 4 or the second forming blade 5 is provided with a first screw 12 and a second screw 13 corresponding to the first nail hole 10 and the second nail hole 11, respectively. The first forming blade 4 and the second forming blade 5 pass through the first nail hole 10 and the second nail hole 11 on the main body 3 through the first screw 12 and the second screw 13 on their backs, respectively. Then, the first forming blade 4 or the second forming blade 5 is locked onto the main body 3 by nuts 14 and the first screw 12 and the second screw 13 respectively.

[0024] The diameters of the first nail hole 10 and the second nail hole 11 are both larger than the outer diameters of the first screw 12 and the second screw 13, leaving a gap for adjusting and fixing the position of the first forming blade 4 or the second forming blade 5.

[0025] Reference Figures 4-6 Another embodiment of this corner-forming special trowel includes a blade body 1 with a right-angle cross-section and a handle 2 connected to the corner of the blade body 1. The blade body 1 is characterized by being composed of a main body 3 formed by bending a piece of metal material into a right-angle cross-section and a first forming blade plate 4 and a second forming blade plate 5 connected and fixed on the two outer planes of the main body 3. The handle 2 is connected and fixed to the inner corner of the main body 3. The first forming blade plate 4 and the second forming blade plate 5 are in close contact with each other with their contact edges 6 and 7 to form a sharp right-angle forming angle 8. The outer side of the main body 3 is a concave right-angle cross-section.

[0026] Reference Figure 6 The first forming blade 4 and the second forming blade 5 have their contact edges 6 in contact with the main body 3, and the contact edges 6 of the first forming blade 4 are inclined inward at an angle of less than or equal to 45 degrees; the contact edges 7 of the second forming blade 5 are in contact with the first forming blade 4, and the contact edges 7 of the second forming blade 5 are inclined inward at an angle of less than or equal to 90 degrees. The close contact between the contact edges 7 of the second forming blade 5 and the first forming blade 4 forms a sharp right-angle forming angle 8.

[0027] The main body 3 has a first nail hole 10 and a second nail hole 11 on the plane 9 on which the first forming blade 4 or the second forming blade 5 is connected and fixed. The back of the first forming blade 4 or the second forming blade 5 is provided with a first screw 12 and a second screw 13 corresponding to the first nail hole 10 and the second nail hole 11, respectively. The first forming blade 4 and the second forming blade 5 pass through the first nail hole 10 and the second nail hole 11 on the main body 3 through the first screw 12 and the second screw 13 on their backs, respectively. Then, the first forming blade 4 or the second forming blade 5 is locked onto the main body 3 by nuts 14 and the first screw 12 and the second screw 13 respectively.

[0028] The diameters of the nail holes 10 and 11 are both larger than the outer diameters of the screws 12 and 13, leaving a gap for adjusting and fixing the position of the first forming blade 4 and the second forming blade 5.

Claims

1. A special-purpose corner-forming trowel comprising a straight-angled cross-section trowel body and a handle connected to the corner of the trowel body, characterized in that: The blade body consists of a main body base bent into a right-angle cross-section from a piece of metal material, and a first forming blade plate and a second forming blade plate respectively connected and fixed to the two outer planes of the main body base. The handle is connected and fixed to the inner corner of the main body base. The first forming blade plate and the second forming blade plate form a sharp right-angle forming angle by the close contact of their contact edges. The outer side of the main body base is a concave right-angle cross-section or a convex right-angle cross-section.

2. The corner wire profiled special purpose screed trowel as claimed in claim 1, wherein: The outer side of the main body is a convex right-angle cross-section, and the contact edges of the first forming blade and the second forming blade are both inclined inward at 45 degrees.

3. The corner wire profiled special purpose screed trowel as claimed in claim 1, wherein: The outer side of the main body is a concave right-angle cross-section. The contact edge of the first forming blade contacts the main body, and the contact edge of the first forming blade is inclined inward at less than or equal to 45 degrees. The contact edge of the second forming blade contacts the first forming blade, and the contact edge of the second forming blade is inclined inward at less than or equal to 90 degrees.

4. The cornered profiled purpose-built screed trowel according to claim 1, 2 or 3, characterised in that: The main body base has a first nail hole and a second nail hole on the plane where the first or second forming blade plate is connected and fixed. The back of the first or second forming blade plate is provided with a first screw and a second screw corresponding to the first nail hole and the second nail hole, respectively. The first or second forming blade plate passes through the first screw and the second screw on its back side through the corresponding first nail hole and the second nail hole on the main body base, respectively. Then, the first or second forming blade plate is locked onto the main body base by nuts that cooperate with the first screw and the second screw, respectively.

5. The corner wire profiled trowel of claim 4, wherein: The diameters of the first and second nail holes are both larger than the outer diameters of the first and second screws, leaving a gap for adjusting and fixing the position of the first or second forming blade.

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