Ash scraping tool for wall and cylindrical surface male right angle construction

Abstract

The utility model discloses an ash scraping tool for construction of a wall cylindrical surface external right angle, which comprises an external corner plastering scraper blade, the working end face of the external corner plastering scraper blade is used for contacting and matching with the wall cylindrical surface external right angle to complete ash scraping work, and an opening is formed in the working end face of the external corner plastering scraper blade; the external corner prestress reinforcing frame is connected to the non-working end face of the external corner plastering scraper; one end of the connecting rod is connected to the middle of the external corner prestress reinforcing frame; and the portable handheld piece is connected to the other end of the connecting rod. The external corner plastering scraper can effectively improve the construction quality of an external right angle, the structural strength of the external corner plastering scraper is enhanced by arranging the external corner prestress reinforcing frame, damage caused by frequent use or high-strength construction can be effectively reduced, the service life of the external corner plastering scraper is prolonged, and even after repeated construction and use, the external corner plastering scraper cannot be damaged. The shape of the external corner plastering scraper blade is more stable, and the plastering process is more uniform and smooth due to the stability of the external corner plastering scraper blade structure.

Description

Technical Field

[0001] This utility model mainly relates to a construction tool, specifically a plastering tool for right-angle construction of walls and columns. This tool is mainly used for plastering and puttying of right-angle walls and columns in building engineering, and belongs to the technical field of construction tools. Background Technology

[0002] Currently, right angles are very difficult to handle during plastering and puttying in buildings. They often require repeated patching with a metal plate or scraper, and the final result is still not a perfectly right angle, or the corner lines are not straight. Traditional construction of right angles on walls and columns involves the operator using a trowel to create and press the angle. This method has the following drawbacks: the mortar is not dense, the depth is inconsistent, the corners are not perfectly right angles, and the corner lines are not straight, which affects the visual effect.

[0003] At the outer corner (external corner) of the wall, where two walls meet, unevenness is easily produced, and unevenness or bumps are likely to occur during plastering.

[0004] While specialized tools for external corner plastering are available on the market, existing traditional external right-angle plastering tools are either too simple in design, making them prone to deformation, especially under high-intensity construction, which affects their efficiency and quality. This deformation problem is particularly pronounced in large construction sites or during extended use. More importantly, they lack durability; traditional simple external right-angle plastering tools are easily worn and deformed under high-intensity or repeated use, resulting in a short tool lifespan. Frequent tool replacements increase construction costs and, more importantly, affect the accuracy of plastering, even leading to substandard work requiring rework in severe cases.

[0005] Meanwhile, most existing plastering tools lack a dedicated hanging function for right-angle plastering. On construction sites, many workers simply pile their tools on the ground. When not in use for extended periods or during rainy seasons, these tools are prone to dampness, rust, or damage due to improper storage. Furthermore, during storage, tools are easily scattered or lost on the work site, increasing maintenance and replenishment costs—in short, it's often very inconvenient.

[0006] Therefore, the key to solving the above-mentioned technical problems lies in developing an economical, easy-to-operate, and long-lasting plastering tool that can be accepted by a wide range of operators for the construction of right-angled surfaces of walls and columns. Summary of the Invention

[0007] To address the numerous defects and shortcomings in the aforementioned background technology, this utility model has made improvements and innovations, aiming to provide a tool for constructing right-angled wall and column surfaces with a simple structure, convenient manufacturing, and significant usage effect. This tool is simple in structure and easy to operate, making it a widely accepted and applicable tool. It effectively improves the construction quality of right-angled surfaces, accelerates construction progress, and saves resources and costs. Furthermore, by setting a prestressed reinforcing frame for the corner, the shape of the corner plastering scraper becomes more stable even after multiple uses. The stability of the corner plastering scraper structure makes the plastering process more uniform and smooth. Thus, during corner plastering operations, the corner plastering scraper can more accurately plaster along the wall corner, thereby improving work accuracy and avoiding uneven plaster layers caused by scraper deformation. By enhancing the structural strength of the corner plastering scraper, damage caused by frequent use or high-intensity construction can be effectively reduced, extending the service life of the corner plastering scraper.

[0008] To solve the above problems and achieve the above-mentioned invention objectives, this utility model provides a plastering tool for right-angle construction on wall and column surfaces, achieved through the following design structure and technical solution:

[0009] An improvement to the plastering tool for right-angle construction on wall and column surfaces according to this utility model includes:

[0010] The working end face of the external corner plastering scraper (1) is used to contact the right angle (5) of the wall column surface to complete the plastering work, and the working end face of the external corner plastering scraper (1) forms an opening;

[0011] The prestressed reinforcement frame (2) for external corners is connected to the non-working end face of the external corner plastering scraper (1) to improve the strength and durability of the plastering tool;

[0012] Link (3), one end of which is connected to the middle of the prestressed reinforcing frame (2) at the external corner;

[0013] Portable handle (4) is connected to the other end of the connecting rod (3) and is located at the non-open end of the two corner plastering scrapers (1), for the operator to hold and complete the plastering work.

[0014] As an improvement of the present invention, the corner plastering scraper (1) includes:

[0015] The first external corner scraper (11) and the second external corner scraper (12) are fixedly connected as a whole, and the working end face is compatible with the right angle (5) of the wall column surface;

[0016] The second external corner scraper (12) and the first external corner scraper (11) are arranged in a symmetrical structure with each other in a relatively connected manner.

[0017] As a further improvement of the present invention, the first external corner scraper (11) and the second external corner scraper (12) have the same shape and structure, both being plate-shaped components with a right-angled trapezoidal structure;

[0018] Furthermore, the first external corner scraper (11) and the second external corner scraper (12) are connected to each other to form an included angle α, which is 90°.

[0019] As a further improvement of the present invention, the external corner prestressed reinforcing frame (2) includes:

[0020] A vertical reinforcing rod (21) is connected to the non-working end face of the first external corner scraper (11) and the second external corner scraper (12);

[0021] Several horizontal reinforcing rods (22) are symmetrically connected to both sides of the vertical reinforcing rod (21), and the outer side wall of each horizontal reinforcing rod (22) is connected to the outer side wall of the first external corner scraper (11).

[0022] As a further improvement of the present invention, both the vertical reinforcing rod (21) and the horizontal reinforcing rod (22) are rod-shaped components.

[0023] As a further improvement of the present invention, the connecting rod (3) is an L-shaped or sickle-shaped component formed by bending a rod-shaped component, and the L-shaped or sickle-shaped component is connected to the middle of the vertical reinforcing rod (21).

[0024] As a further improvement of the present invention, the connecting rod (3) is a fixed rod or a telescopic rod; the rod-shaped component is a steel bar.

[0025] As a further improvement of the present utility model, the portable hand-holding member (4) is a columnar component, and the connecting rod (3) is embedded or sleeved on the portable hand-holding member (4);

[0026] A hanging plate (42) is provided extending from the free end of the portable handle (4), and a hanging hole (421) is provided on the front and back sides of the hanging plate (42) for easy storage and hanging.

[0027] As a further improvement of the present utility model, a protective sleeve (41) is provided on the outer surface of the portable holding member (4). The protective sleeve (41) is a rubber sleeve, and several rubber protective protrusions with an integral structure are provided on the outer surface of the rubber sleeve.

[0028] The suspension plate (42) is a flat plate-shaped component. The fixed end of the flat plate-shaped component is vertically connected to the middle of the free end of the portable hand-held component (4). The end of the flat plate-shaped component is set as an arc segment.

[0029] The suspension hole (421) is elliptical, triangular, circular or square in shape, and the suspension hole (421) is opened on both sides of the free end edge of the suspension plate (42).

[0030] As a further improvement to the present invention, an injection molding layer, an anti-rust layer, a waterproof layer, and a warning layer are sequentially provided from the inside to the outside on the outer surfaces of the external corner plastering scraper (1), the external corner prestressed reinforcement frame (2), the connecting rod (3), and the portable handle (4), and the warning layer is coated with fluorescent powder.

[0031] The working principle is as follows: Before using the above-mentioned plastering tool for right-angle construction of wall and column surfaces, the construction personnel only need to manually or with appropriate handling equipment move the tool to the designated location for use.

[0032] When using it, it is used in conjunction with the right angle (5) of the wall or column surface that needs to be constructed. During construction, the construction personnel first clean up the garbage or dirt at the right angle (5) of the wall or column surface and wet it with water. Then, the right angle (5) of the wall or column surface is filled with mortar or fine stone concrete that needs to be smoothed. That is, the mortar or fine stone concrete is placed at the right angle (5) of the wall or column surface. Before the mortar or fine stone concrete initially sets, the operator holds the portable handle (4) and places the plastering tool body (1) at the right angle so that the right angle is smoothed. Align the mortar scraper (1) with the mortar or fine stone concrete at the right angle (5) of the wall column surface, and then pull the portable handle (4) with a little force to scrape the mortar or fine stone concrete at the right angle (5) of the wall column surface in one direction to form a smooth mortar joint. The mortar joint should be rounded and the mortar should be tight. After the construction of the right angle (5) of the wall column surface is completed, it should be inspected and accepted. After it is qualified, the next process should be carried out. According to the above construction method, the next right angle (5) of the wall column surface should be constructed.

[0033] Finally, as time goes by, once all the construction work is completed, the construction workers only need to clean and repair the utility model, and then transport it to the designated tool storage warehouse for storage using appropriate handling equipment or manually, so that it can be reused next time.

[0034] In the above construction process, if the mortar or fine stone concrete at the right angle (5) of the wall column cannot be formed in one go, the construction personnel can continue to repeatedly trowel and press the mortar or fine stone concrete at the right angle (5) of the wall column to form the shape.

[0035] The beneficial effects of this utility model compared with the prior art are:

[0036] 1. This utility model has a novel and reasonable design, simple structure, and is easy to use. It is a widely recognized and applicable tool that can effectively improve the construction quality of right angles, speed up the construction progress, and save resources and costs.

[0037] 2. This utility model solves the problem that unevenness is easily generated at the outer corner (external corner) of the wall due to the intersection of two walls. By using the external corner plastering scraper with the design structure of this utility model, the plastering layer at the corner can be effectively ensured to be flat, avoiding unevenness or bumps.

[0038] 3. This utility model designs the external corner plastering scraper as two pieces composed of a first external corner scraper and a second external corner scraper. By using the external corner plastering scraper composed of two scrapers, it helps to achieve precise angles and thicknesses during plastering. This solves the problem that the external corners of the wall are easily affected by impacts and wear. This design can enhance the durability and impact resistance of the wall corners and extend the service life of the right angles of the wall surface.

[0039] 4. This utility model solves the problem of cracks easily generated in mortar during the hardening process by using a corner plastering scraper composed of two scrapers, especially when the plastering is uneven or the thickness is inconsistent. The design of the two scrapers can ensure that the plaster layer thickness is uniform, thereby reducing the occurrence of cracks.

[0040] 5. Because the first and second external corner scrapers of this utility model are set at a 90° angle, it is easier to accurately process external corners. In this way, construction workers can more easily control the scraper angle during construction, which helps them control the smoothness and flatness of the plaster layer, avoid common construction defects, and improve construction efficiency and accuracy;

[0041] 6. This utility model, due to the inclusion of a prestressed reinforcing frame at the external corner, effectively improves the overall strength and stability of the external corner plastering scraper by applying prestress. This prevents the external corner plastering scraper from deforming or bending due to external forces during use, ensuring that the scraper maintains a stable shape and angle during plastering and guaranteeing construction quality.

[0042] 7. Under high pressure or long-term use, the corner plastering scraper may deform due to long-term load or high temperature environment. This utility model can enhance the deformation resistance of the corner plastering scraper by setting a prestressed reinforcement frame for the corner, ensuring its accuracy and reliability during use; and the prestressed reinforcement frame for the corner provides additional support and stability, which makes the corner plastering scraper easier to operate, reducing the strength and operation difficulty required by construction workers during the plastering process, thereby improving work efficiency and reducing labor intensity.

[0043] 8. By setting up a prestressed reinforcement frame for external corners, which consists of vertical and horizontal reinforcing bars, the shape of the external corner plastering scraper will be more stable even after multiple constructions and uses. The stability of the external corner plastering scraper structure makes the plastering process more uniform and smooth. In this way, when plastering external corners, the external corner plastering scraper can more accurately plaster along the corner, thereby improving work accuracy and avoiding uneven plastering layer caused by deformation of the external corner plastering scraper. By enhancing the structural strength of the external corner plastering scraper, damage caused by frequent use or high-intensity construction can be effectively reduced, and the service life of the external corner plastering scraper can be extended.

[0044] 9. Because the handheld part of the portable handle is covered with a protective sleeve, this utility model can protect the operator's hands from wear and tear during long-term work, thus ensuring construction safety.

[0045] 10. This utility model facilitates hanging, storage, and safekeeping of tools. Tools can be hung on the wall or tool rack through the hanging holes, saving storage space and avoiding damage caused by tools being placed haphazardly. This allows tools to be conveniently hung in the required position, enabling construction workers to quickly retrieve and adjust tools, reducing unnecessary time waste and improving construction efficiency.

[0046] 11. The exterior of this utility model is coated with anti-rust paint and a waterproof layer, which can prevent rusting and extend the service life of the entire device. It is environmentally friendly and saves resources. At the same time, the exterior of the device is coated with a self-luminous fluorescent material, which can clearly mark the location of the laying device at night or in dark indoor or underground construction environments. It can effectively play a safety warning role, improve visibility, make it easy for people to identify, and increase safety in construction and life. Attached Figure Description

[0047] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0048] Figure 1 This is one of the schematic diagrams showing the usage state of this utility model;

[0049] Figure 2This is the second schematic diagram of the usage state of this utility model;

[0050] Figure 3 This is one of the overall structural schematic diagrams of this utility model;

[0051] Figure 4 This is the second schematic diagram of the overall structure of this utility model;

[0052] Figure 5 This is the third schematic diagram of the overall structure of this utility model;

[0053] Figure 6 This is the fourth schematic diagram of the overall structure of this utility model;

[0054] Figure 7 This is the fifth schematic diagram of the overall structure of this utility model;

[0055] Figure 8 This is the sixth schematic diagram of the overall structure of this utility model;

[0056] Figure 9 This is a schematic diagram of the overall structure of another design of this utility model;

[0057] In the figure, the numbers are: 1—corner plastering scraper, 11—first corner scraper, 12—second corner scraper;

[0058] 2—Corner prestressed reinforcement frame, 21—Vertical reinforcement bar, 22—Horizontal reinforcement bar;

[0059] 3—Connecting rod;

[0060] 4—Portable handle; 41—Protective cover; 42—Hanging plate; 421—Hanging hole;

[0061] 5—Right angle of the wall / column surface. Detailed Implementation

[0062] To make the technical means, inventive features, objectives, and effects of this utility model readily understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0063] Example 1

[0064] like Figures 1 to 8 The plastering tool shown is used for right-angle construction on wall and column surfaces, comprising:

[0065] The external corner plastering scraper 1 has a working end face that is used to contact the wall / column surface at the right angle 5 to complete the plastering work, and the working end face of the external corner plastering scraper 1 forms an opening.

[0066] The external corner prestressed reinforcement frame 2 is connected to the non-working end face of the external corner plastering scraper 1 to improve the strength and durability of the plastering tool;

[0067] Link 3, one end of which is connected to the middle of the prestressed reinforcing frame 2 at the external corner;

[0068] Portable handle 4 is connected to the other end of the connecting rod 3 and is located at the non-open end of the two external corner plastering scrapers 1, for the operator to hold and complete the plastering work.

[0069] Furthermore, such as Figure 4 , Figure 5 and Figure 6 as well as Figure 8 As shown, the external corner plastering scraper 1 includes:

[0070] The first external corner scraper 11 and the second external corner scraper 12 are fixedly connected as a whole, and the working end face is compatible with the right angle 5 of the wall column surface.

[0071] The second external corner scraper 12 is arranged in a symmetrical structure with the first external corner scraper 11.

[0072] Specifically, such as Figure 4 , Figure 5 and Figure 6 as well as Figure 8 As shown, the first external corner scraper 11 and the second external corner scraper 12 have the same shape and structure, both being plate-shaped components with a right-angled trapezoidal structure;

[0073] Furthermore, the first external corner scraper 11 and the second external corner scraper 12 are connected to each other to form an included angle α, which is 90°.

[0074] Furthermore, such as Figure 3 As shown, the external corner prestressed reinforcement frame 2 includes:

[0075] Vertical reinforcing rod 21 is connected to the non-working end face of the first external corner scraper 11 and the second external corner scraper 12.

[0076] Several horizontal reinforcing rods 22 are symmetrically connected to both sides of the vertical reinforcing rod 21, and the outer side wall of each horizontal reinforcing rod 22 is connected to the outer side wall of the first external corner scraper 11.

[0077] Specifically, such as Figure 3As shown, both the vertical reinforcing rod 21 and the horizontal reinforcing rod 22 are rod-shaped components.

[0078] In this utility model, both the vertical reinforcing bar 21 and the horizontal reinforcing bar 22 are made of steel bars of different lengths.

[0079] Furthermore, such as Figure 3 and Figure 4 As shown, the connecting rod 3 is an L-shaped or sickle-shaped component formed by bending a rod-shaped component, and the L-shaped or sickle-shaped component is connected to the middle of the vertical reinforcing rod 21.

[0080] Specifically, the connecting rod 3 is a fixed rod or a telescopic rod; the rod-shaped component is a steel bar.

[0081] Furthermore, such as Figure 3 As shown, the portable handle 4 is a columnar component, and the connecting rod 3 is embedded or sleeved on the portable handle 4.

[0082] During construction, such as Figure 1 and Figure 2 As shown, mortar or fine aggregate concrete is placed at the right angle 5 on the wall / column surface. Before the mortar or fine aggregate concrete initially sets, the operator holds the portable handle 4 and places the plastering tool body 1 at the right angle, aligning the corner plastering scraper 1 with the mortar or fine aggregate concrete at the right angle 5 on the wall / column surface. Then, the operator pulls the portable handle 4 with slight force in one direction to scrape and shape the mortar or fine aggregate concrete at the right angle 5 on the wall / column surface, creating a smooth, consistent mortar joint at the right angle. The joint should be rounded and the mortar should be tight. After the construction at the right angle 5 on the wall / column surface is completed, an inspection and acceptance process is conducted. If it passes the inspection, the next process is carried out. The construction method described above is used to continue the construction at the right angle 5 on the next wall / column surface.

[0083] Example 2

[0084] This embodiment 2 is the same as embodiment 1, except that, as Figure 6 and Figure 7 As shown, a protective sleeve 41 is fitted on the outer surface of the portable grip 4. The protective sleeve 41 is a rubber sleeve, and several integrated rubber protective protrusions are provided on the outer surface of the rubber sleeve.

[0085] Specifically, the protective sleeve 41 is a rubber sleeve, and several integrated rubber protective protrusions are provided on the outer surface of the rubber sleeve. These rubber protective protrusions are granular or annular protrusions.

[0086] In this embodiment 2, since a protective cover is provided on the handheld part of the portable handle 4, it can protect the operator's hands from wear and tear during long-term work, thus ensuring construction safety.

[0087] Other uses are the same as in Example 1, and will not be repeated here.

[0088] Example 3

[0089] This embodiment 3 is the same as embodiment 1 and embodiment 2, except that a hanging plate 42 is provided at the free end of the portable handle 4, and a hanging hole 421 is provided on the front and back of the hanging plate 42 for easy storage and hanging.

[0090] The suspension plate 42 is a flat plate-shaped component. The fixed end of the flat plate-shaped component is vertically connected to the middle of the free end of the portable handle 4. The end of the flat plate-shaped component is set as an arc segment.

[0091] The suspension hole 421 is elliptical, triangular, circular or square in shape, and the suspension hole 421 is opened on both sides of the free end edge of the suspension plate 42.

[0092] When using this embodiment 3, tools can be hung on the wall or tool rack through the hanging holes 421 on the hanging plate 42 when storing them. This allows construction workers to quickly retrieve and adjust the tools, reducing unnecessary time waste and improving construction efficiency.

[0093] Example 4

[0094] This embodiment 4 is the same as embodiments 1 to 3, except that an injection molding layer, an anti-rust layer, a waterproof layer, and a warning layer are sequentially provided from the inside to the outside on the outer surfaces of the external corner plastering scraper 1, the external corner prestressed reinforcement frame 2, the connecting rod 3, and the portable handle 4. The warning layer is coated with fluorescent powder.

[0095] Specifically, a wear-resistant polymer material is injection molded onto the injection-molded layer; the anti-rust layer includes an epoxy zinc-rich primer and a chlorinated rubber topcoat, as well as an epoxy micaceous iron oxide intermediate coat located between the epoxy zinc-rich primer and the chlorinated rubber topcoat; the waterproof layer is a polyurethane waterproof coating; and the warning layer is a reflective warning tape, reflective film, or reflective paint of a single color or a mixture of multiple colors.

[0096] In this embodiment, because the exterior of the device is coated with anti-rust paint and a waterproof layer, rust prevention is prevented during implementation, extending the service life of the entire device. This achieves environmental protection and saves resources. In addition, the exterior of the device is coated with a self-illuminating fluorescent material, which can clearly mark the location of the laying device at night, in dark indoor environments, or in underground construction environments. This effectively serves as a safety warning, increases visibility, makes it easy for people to identify, and increases safety in construction and daily life.

[0097] Other uses are the same as in Examples 1 and 2, and will not be repeated here.

[0098] Meanwhile, in this utility model, all connections referred to are fixed connections, movable connections, or detachable connections. Among them, fixed connections are welded connections or directly processed into an integral structure; movable connections, detachable connections, or split structures are hinged connections, internal and external threaded connections, bayonet connections, plug-in sleeves, bolt assembly connections, or screw connections.

[0099] In summary, a more specific embodiment of this utility model is as follows:

[0100] Before using the above-mentioned plastering tool for right-angle construction of wall and column surfaces, the construction personnel only need to manually or with appropriate handling equipment move the tool to the designated location for use.

[0101] When using it, it should be used in conjunction with the right angle 5 on the wall or column surface where construction is required.

[0102] The specific construction steps are as follows:

[0103] Step 1: During construction, the workers first clean up any trash or dirt at the five right angles of the wall and column surfaces and then wet them with water.

[0104] Step 2: Fill the 5-degree angle of the wall / column surface with mortar or fine aggregate concrete that needs to be smoothed. That is, place the mortar or fine aggregate concrete at the 5-degree angle of the wall / column surface.

[0105] Step 3, as follows Figure 1 As shown, before the mortar or fine stone concrete has initially set, the operator holds the portable handle 4 and places the plastering tool body 1 at the right angle, aligning the corner plastering scraper 1 with the mortar or fine stone concrete at the right angle 5 of the wall or column surface. Then, the operator pulls the portable handle 4 with a little force in one direction to scrape the mortar or fine stone concrete at the right angle 5 of the wall or column surface into a smooth, uniform mortar joint, with the joint rounded and the mortar tight.

[0106] Step 4: After the construction of the right angle 5 on the wall and column surface is completed, an inspection and acceptance will be carried out. If it passes the inspection, the next process will be carried out. The construction of the next right angle 5 on the wall and column surface will be carried out according to the above construction method.

[0107] Step 5. Finally, as time goes by, once all the construction work is completed, the construction workers only need to clean and repair the utility model, and then transport it to the designated tool storage warehouse for storage using appropriate handling equipment or manually, so that it can be reused next time.

[0108] During the aforementioned construction process, if the mortar or fine aggregate concrete at the right angle 5 on the wall / column surface cannot be formed in one application, the construction worker can continue to repeatedly trowel and press the mortar or fine aggregate concrete at the right angle 5 on the wall / column surface until it is formed. In repeated use, due to the prestressed corner reinforcement frame, this utility model enhances the deformation resistance of the corner plastering scraper, ensuring its accuracy and reliability during use. Furthermore, the prestressed corner reinforcement frame provides additional support and stability, making the corner plastering scraper easier to operate and reducing the workload required by the construction worker during the plastering process. The design reduces the required strength and operational difficulty, thereby improving work efficiency and reducing labor intensity. On the other hand, by setting up a prestressed reinforcement frame for the external corner, the shape of the external corner plastering scraper will be more stable even after multiple constructions. The stability of the external corner plastering scraper structure makes the plastering process more uniform and smooth. In this way, when plastering external corners, the external corner plastering scraper can more accurately plaster along the corner, thereby improving work accuracy and avoiding uneven plastering layers caused by deformation of the external corner plastering scraper. By enhancing the structural strength of the external corner plastering scraper, damage caused by frequent use or high-intensity construction can be effectively reduced, extending the service life of the external corner plastering scraper.

[0109] Finally, it should be noted that the above provides a detailed description of the plastering tool for right-angle construction on wall and column surfaces according to this utility model. The principle of this utility model has been described herein, and the above explanation of the working principle is only for the purpose of helping to understand the core idea of ​​this utility model. It should be pointed out that those skilled in the art can make improvements and modifications to this utility model without departing from its principle, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A trowel for wall column plane straight angle construction, characterized in that, The utility model relates to a kind of external corner plastering tools, including: External corner plastering scraper (1), the working end surface of external corner plastering scraper (1) is used to contact with wall surface external corner (5) and each other to complete scraping work, and the working end surface of external corner plastering scraper (1) forms opening; External corner prestressed strengthening frame (2), external corner prestressed strengthening frame (2) is connected on the non-working end surface of external corner plastering scraper (1), for improving the strength and durability of scraping tool; Connecting rod (3), one end of connecting rod (3) is connected in the middle of external corner prestressed strengthening frame (2); Portable hand-held piece (4), portable hand-held piece (4) is connected to the other end of connecting rod (3), and is located in the non-opening end of two external corner plastering scraper (1), for operator hand-held to complete scraping work.

2. The trowel according to claim 1, wherein, The external corner plastering scraper (1) includes: First external corner scraper (11), first external corner scraper (11) is fixedly connected with second external corner scraper (12) as a whole, and the working end surface is adapted to wall surface external corner (5); Second external corner scraper (12), second external corner scraper (12) and first external corner scraper (11) are arranged in opposite connection, forming a symmetrical structure.

3. The trowel according to claim 2, wherein, The first external corner scraper (11) and the second external corner scraper (12) have the same shape structure, and are both plate-shaped members in right trapezoidal structure; And the included angle α between the first external corner scraper (11) and the second external corner scraper (12) is 90°.

4. The trowel according to claim 1, wherein, The external corner prestressed strengthening frame (2) includes: Vertical reinforcing rod (21), vertical reinforcing rod (21) is connected to the connection part of the non-working end surface of the first external corner scraper (11) and the second external corner scraper (12); Several horizontal reinforcing rods (22), several horizontal reinforcing rods (22) are symmetrically connected to the two sides of the vertical reinforcing rod (21), and the outer side wall of each horizontal reinforcing rod (22) is connected to the outer side wall of the first external corner scraper (11).

5. A trowel for the construction of right-angled corners of wall columns according to claim 4, characterized in that, The vertical reinforcing rod (21) and the horizontal reinforcing rod (22) are both rod-shaped members.

6. The trowel according to claim 1, wherein, The connecting rod (3) is an "L-shaped" or "sickle-shaped" member formed by bending a rod-shaped member, and the "L-shaped" or "sickle-shaped" member is connected to the middle of the vertical reinforcing rod (21).

7. The trowel for the construction of the right angle of the wall column surface according to claim 6, characterized in that, The connecting rod (3) is a fixed rod or a telescopic rod, and the rod-shaped member is a steel bar.

8. The trowel for the corner construction of the wall according to claim 1, wherein, The portable hand-held piece (4) is a columnar member, and the connecting rod (3) is embedded or sleeved on the portable hand-held piece (4); A hanging plate (42) is provided on the free end of the portable hand-held piece (4), and a hanging hole (421) for hanging is formed through the front and back surfaces of the hanging plate (42).

9. The trowel according to claim 8, wherein, A protective sleeve (41) is sleeved on the outer surface of the portable hand-held piece (4), and the protective sleeve (41) is a rubber sleeve. The hanging plate (42) is a flat plate-shaped member, the fixed end of the flat plate-shaped member is perpendicularly connected to the middle of the free end of the portable hand-held piece (4), and the end of the flat plate-shaped member is provided as a circular segment. The suspension hole (421) is elliptical, triangular, circular or square in shape, and the suspension hole (421) is opened on both sides of the free end edge of the suspension plate (42).

10. The trowel tool for right angle construction of a wall column face according to claim 1, wherein On the outer surfaces of the corner plastering scraper (1), the corner prestressed reinforcement frame (2), the connecting rod (3), and the portable handle (4), an injection molding layer, an anti-rust layer, a waterproof layer, and a warning layer are sequentially provided from the inside to the outside. The warning layer is coated with fluorescent powder.

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