A multi-functional trowel

CN224813446UActive Publication Date: 2026-09-29THE THIRD CONSTR CO LTD OF YNJG
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Patent Information

Application Number
CN202522298887.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-30
Publication Date
2026-09-29
Estimated Expiration
2035-10-30

AI Technical Summary

Technical Problem

[0004]1、效率低,耗时费力:由于R脚的形状复杂且需要精确的控制,工人通常需要反复调整和修整才能达到合适的效果

Benefits of technology

[0032]1、本实用新型灵活性强,能够根据不同施工条件和需求进行调整,不仅能对平面场景进行施工,还能对R脚场景进行施工,并保证效率和质量,达到实现适应多样化的施工环境,极大地提高了操作的灵活性和效率;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multi -functional plastering instrument, include: plastering board, the middle part of plastering board is arc shape, first connecting piece, first connecting piece is detachably installed one side second connecting piece of plastering board through several fixed components, and second connecting piece is detachably installed the other side of plastering board through several fixed components, wherein, the outer end face of first connecting piece and second connecting piece all with the corresponding side of plastering board flush setting. The utility model designs clever, strong flexibility, can adjust according to different construction condition and demand, not only can carry out construction to plane scene, still can carry out construction to R foot scene to guarantee efficiency and quality, and the construction quality of great increase and the production cost of reduction.
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Description

Technical Field

[0001] This utility model relates to a plastering tool, specifically a multifunctional plastering tool, belonging to the field of building construction technology. Background Technology

[0002] In building construction, the finishing process is a crucial step in the cast-in-place fine aggregate concrete construction of the parapet wall's radius (R-shaped base) on the roof, directly affecting its appearance and durability. As a vital connection between the wall and the roof, the shape and surface smoothness of the radius play a critical role in the building's waterproofing, structural stability, and aesthetics. However, in traditional construction, current techniques largely rely on workers to manually shape and finish the radius, depending primarily on their experience to control its dimensions and surface smoothness.

[0003] This manual method has two significant problems:

[0004] 1. Low efficiency and time-consuming / labor-intensive: Due to the complex shape of the R-shaped feet and the need for precise control, workers usually need to repeatedly adjust and modify them to achieve the desired effect. Manual operation is not only time-consuming but also requires a high level of skill from workers, resulting in a long construction cycle and failing to meet the needs of large-scale, high-efficiency construction.

[0005] 2. Unstable quality and difficulty in ensuring consistency: Manual operation is easily affected by various factors such as worker skill level, operating habits, and site environment, resulting in differences in the size and shape of each R-shaped element, leading to inconsistent construction quality. This instability not only affects the construction effect but may also cause subsequent quality problems such as cracks and leaks, increasing the risk of rework and repairs.

[0006] A search revealed that Chinese utility model patent CN 213418394 U discloses a corner plastering tool, which includes an arc-shaped plaster board and a connecting rod. The connecting rod is connected to the concave surface of the arc-shaped plaster board, and a handle is connected to the end of the connecting rod away from the plaster board. This patent facilitates the treatment of rounded corners at internal angles, facilitates the laying of waterproof membrane during foundation construction, reduces damage to the membrane, improves construction efficiency, and accelerates the construction progress. However, this tool has a limited function and cannot meet the demands of modern building construction for efficient, precise, and flexible construction.

[0007] Therefore, developing a highly adaptable and multifunctional plastering tool is the key to solving the above-mentioned technical problems. Summary of the Invention

[0008] In view of the many defects and shortcomings of the above-mentioned background technology, this utility model has made improvements and innovations, aiming to provide a cleverly designed and highly flexible multi-functional plastering tool that can be adjusted according to different construction conditions and needs. It can not only be used for construction on flat scenes, but also for R-shaped scenes, while ensuring efficiency and quality, greatly improving construction quality and reducing production costs.

[0009] To solve the above problems and achieve the above-mentioned invention objectives, this utility model provides a multifunctional plastering tool by adopting the following design structure and the following technical solution:

[0010] A multi-functional plastering tool, comprising:

[0011] Plastering board, the middle of the plastering board is arc-shaped;

[0012] The first connector is detachably mounted on one side of the plasterboard via several fixing components.

[0013] The second connector is detachably mounted on the other side of the plasterboard via several fixing components;

[0014] The outer end faces of both the first and second connectors are flush with the plasterboard on the corresponding side.

[0015] Preferably, the plastering board includes a first board and a second board that are perpendicular to each other, and a transition arc structure is provided at the connection between the two boards. The outer surfaces of the first board and the second board are respectively provided with inwardly recessed mounting grooves, and each mounting groove passes through the board and has a fixing hole adapted to the fixing component.

[0016] Preferably, the plastering board is further connected to reinforcing plates at both ends of its interior.

[0017] Preferably, the first connector includes:

[0018] Connecting plate;

[0019] The bracket has one end connected to the middle of the connecting plate;

[0020] The handle is attached to the other end of the bracket.

[0021] Preferably, the bracket has an overall "T" shape, with its lower end connected parallel to the middle of the connecting plate along its length.

[0022] The handle is arranged parallel to the lower end of the bracket, and the handle is positioned above one end of the connecting plate.

[0023] Preferably, the second connector has the same shape and structure as the first connector, wherein the handle of the second connector and the handle of the first connector are located at both ends of the plasterboard and on the same axis.

[0024] Preferably, the fixing component is a bolt assembly, which includes:

[0025] The screw has one end fixedly connected to one side of the connecting plate.

[0026] Nut, the nut is threaded onto the screw.

[0027] Preferably, the screws are arranged in a triangular pattern on one side of the connecting plate;

[0028] The nut is a wing nut.

[0029] Preferably, the fixing component includes magnetic blocks, which are respectively connected to the connecting holes of the plasterboard body. The magnetic blocks are used to magnetically connect the first connector and the second connector to the mounting grooves on both sides of the plasterboard, wherein the adsorption end of the magnetic block is flush with the plasterboard body.

[0030] Preferably, the fixing component further includes positioning posts, which are symmetrically connected to both ends of one side of the connecting plate and are used to cooperate with the fixing holes to complete the positioning work.

[0031] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0032] 1. This utility model is highly flexible and can be adjusted according to different construction conditions and needs. It can not only carry out construction on planar scenes, but also on R-shaped scenes, while ensuring efficiency and quality. It can adapt to diverse construction environments and greatly improve the flexibility and efficiency of operation.

[0033] 2. This utility model helps to improve overall construction efficiency, reduce rework rate, and ensure that the size and shape of each R-foot are consistent, thereby significantly improving construction quality and reducing production costs;

[0034] 3. The plastering board of this utility model facilitates the treatment of the R-corners on the wall surface, simplifies the waterproof membrane laying process, thereby improving construction efficiency and speeding up the construction progress; at the same time, it can ensure that the plastering of the rounded corners is smoother and cleaner, avoids the problem of paint falling off, and ensures the quality of plastering, especially the good forming quality of the rounded corners and the beautiful effect.

[0035] 4. This utility model is flexible and convenient to operate and easy to learn. The first connector is used to fit the wall and the second connector is used to fit the ground. It plays a certain role in limiting the position and makes the arc structure in the middle of the plaster board compact the mortar, making the operation more convenient, reducing the difficulty of operation for workers, effectively reducing labor intensity and improving work efficiency.

[0036] 5. This utility model saves space and is easy to carry. The plastering tool is small in size, which can save space, facilitate transportation and carrying, and improve the overall convenience of the construction site.

[0037] 6. This utility model adopts a detachable design, which is convenient for installation and disassembly, and facilitates maintenance and replacement of parts. If a part is damaged, the user only needs to replace the damaged part, without replacing the entire tool, which greatly reduces maintenance costs. At the same time, this design significantly improves the durability and service life of the tool, ensuring high efficiency and reliability in long-term use.

[0038] 7. This utility model has a simple structure, is easy to process, and has a low manufacturing cost. At the same time, it simplifies construction operations, thereby saving manpower and production costs and improving overall economic efficiency. Attached Figure Description

[0039] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0040] Figure 1 This is one of the overall structural schematic diagrams of this utility model;

[0041] Figure 2 This is the second schematic diagram of the overall structure of this utility model;

[0042] Figure 3 This is a side view of the present invention;

[0043] Figure 4 This is an exploded view of this utility model;

[0044] Figure 5 This is a structural schematic diagram of the first connecting component of this utility model;

[0045] Figure 6 This is a schematic diagram of the overall structure of another design of this utility model;

[0046] Figure 7 This is an exploded view of another design structure of this utility model;

[0047] Figure 8 This is a schematic diagram of the usage state of this utility model;

[0048] In the figure, the numbers are: 1—plaster board, 11—installation groove, 12—fixing hole, 13—connection hole;

[0049] 2—First connector, 21—Connecting plate, 22—Bracket, 23—Handle;

[0050] 3—Second connecting piece;

[0051] 4—Fixing component; 41—Screw; 42—Nut; 4a—Magnetic block; 4b—Positioning pin;

[0052] 5—Reinforcing plate;

[0053] 6—Protective cover. Detailed Implementation

[0054] 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.

[0055] Example 1

[0056] As per the instruction manual Figures 1 to 5 As shown, a multi-functional plastering tool includes:

[0057] Plastering board 1, the middle part of plastering board 1 is arc-shaped;

[0058] The first connector 2 is detachably mounted on one side of the plasterboard 1 via several fixing components 4.

[0059] The second connector 3 is detachably installed on the other side of the plasterboard 1 by means of several fixing components 4;

[0060] The outer end faces of the first connector 2 and the second connector 3 are flush with the plasterboard on the corresponding side.

[0061] Furthermore, the plastering board 1 includes a first board and a second board that are perpendicular to each other. A transition arc structure is provided at the connection between the two boards. The outer surfaces of the first board and the second board are respectively provided with inwardly recessed mounting grooves 11. Each mounting groove 11 passes through the board and has a fixing hole 12 that is adapted to the fixing component 4.

[0062] In this utility model, the multiple fixing holes 12 opened on each mounting groove 11 are arranged in a triangular pattern.

[0063] Specifically, the plastering board 1 is also connected to reinforcing plates 5 at both ends inside.

[0064] In this utility model, the reinforcing plate 5 has an overall "D" shaped structure, which can effectively enhance the strength, stability, impact resistance, load-bearing capacity and durability of the plastering board 1, while also preventing paint from entering the interior of the plastering board 1.

[0065] Furthermore, the first connector 2 includes:

[0066] Connecting plate 21;

[0067] Bracket 22, one end of bracket 22 is connected to the middle of connecting plate 21;

[0068] Handle 23 is connected to the other end of bracket 22.

[0069] Specifically, the bracket 22 has an overall "T" shape, and the lower end of the bracket 22 is connected in parallel to the middle of the connecting plate 21 along its length.

[0070] The handle 23 is arranged parallel to the lower end of the bracket 22, and the handle 23 is located above one end of the connecting plate 21.

[0071] In this utility model, the distance from the connecting end of the bracket 22 to the side of the connecting plate 21 is consistent with the width of the mounting groove 11 of the plastering board 1, which facilitates the positioning, installation and use of the first connecting member 2 and the second connecting member 3.

[0072] Furthermore, the second connector 3 has the same shape and structure as the first connector 2, wherein the handle of the second connector 3 and the handle 23 of the first connector 2 are located at both ends of the plaster board 1 and are on the same axis.

[0073] In this utility model, both the first connector 2 and the second connector 3 are flat trowels with different orientations of their handles. The openings formed by the handles of the second connector 3 and the first connector 2 with the plasterboard 1 are both outward.

[0074] Furthermore, the fixing component 4 is a bolt assembly, which includes:

[0075] Screw 41, one end of screw 41 is fixedly connected to one side of connecting plate 21.

[0076] Nut 42 is threaded onto screw 41.

[0077] Specifically, the screws 41 are arranged in a triangular pattern on one side of the connecting plate 21;

[0078] The nut 42 is a wing nut.

[0079] During installation, the operator inserts the screws 41 on the first connector 2 and the second connector 3 into the three fixing holes 12 of the corresponding mounting groove 11 on the plaster board 1, with both handles facing outwards. Then, the operator tightens the nuts 42 onto each screw 41 to securely connect the first connector 2 and the second connector 3 to the plaster board 1, ensuring that the two handles are on the same axis, thus completing the installation.

[0080] During the disassembly and assembly process, since nut 42 is a wing nut, this tool does not require additional tools for installation, which greatly simplifies the installation process. At the same time, it allows operators to complete the installation and adjustment in a short time, reducing the intensity of manual labor and time costs, and ensuring the flexibility and adjustability of the tool.

[0081] Example 2

[0082] like Figure 6 and Figure 7 As shown, this embodiment is basically the same as embodiment 1, except that the fixing component 4 includes a magnetic block 4a, which is connected to the connecting hole 13 of the plaster board body. The magnetic block 4a is used to magnetically connect the first connector 2 and the second connector 3 to the mounting groove 11 on both sides of the plaster board 1. The adsorption end of the magnetic block 4a is flush with the plaster board body.

[0083] In this invention, the magnetic block 4a is threadedly connected to the connecting hole 13; the connecting plates of the first connecting member 2 and the second connecting member 3 are made of a material that can be attracted by a magnet, and the magnetic block 4a is made of a powerful magnet.

[0084] Specifically, the fixing component 4 also includes positioning posts 4b, which are symmetrically connected to both ends of one side of the connecting plate 21 and are used to cooperate with the fixing holes 12 to complete the positioning work.

[0085] During installation, the operator inserts the positioning pins 4b on the first connector 2 and the second connector 3 into the two fixing holes 12 of the corresponding mounting groove 11 on the plaster board 1, with both handles facing outwards. At the same time, the magnetic block 4a in the connecting hole 13, under magnetic attraction, firmly attaches the first connector 2 and the second connector 3 to the plaster board 1, ensuring that the two handles are on the same axis, thus completing the installation. This tool requires no additional tools, greatly simplifying the installation process. It also allows operators to complete the installation and adjustment in a short time, reducing labor intensity and time costs, and ensuring the tool's flexibility and adjustability. This makes it easier to adapt to different situations in actual operation and reduces rework problems caused by improper installation.

[0086] The first connector 2 and the second connector 3 are mounted on the plastering board 1 using magnetic blocks 4a, which fully reflects the ease, flexibility and efficiency of installation and use, while ensuring the stability and durability of the equipment, in line with the design trend of modern tools being efficient and easy to maintain.

[0087] Compared to bolt fixing, magnetic attraction reduces wear on components, extends service life, and avoids loosening and damage problems that may occur with bolt connections.

[0088] The working principles of Examples 1 and 2 are as follows:

[0089] Before use, prepare plastering board 1 that conforms to the R-foot size according to the construction requirements, so that the transition arc structure in the middle of plastering board 1 meets the construction requirements, and install it as a backup; at the same time, before construction, the R-foot of the wall should be thoroughly cleaned to remove dust, oil, dirt and loose materials from the surface, which will help the mortar to adhere and avoid the dirt affecting the adhesion of the mortar.

[0090] When using, such as Figure 8 As shown: The operator first spreads an appropriate amount of corner mortar evenly on the R-shaped inside corner of the wall;

[0091] Then, the operator holds the handle on the first connector 2 or the second connector 3 and attaches the connecting plate 21 of the first connector 2 to the upper wall. Next, the second connecting plate of the second connector 3 is also attached to the ground, so that the arc structure in the middle of the plaster board 1 compacts the mortar. Then the R-foot can be constructed at this location. By holding the handle and moving the plaster board 1, the R-foot at this location can be constructed quickly.

[0092] Finally, following the above construction steps, construction can be carried out on multiple R-shaped feet.

[0093] Compared to traditional tools, this tool, when in use, adheres to the wall via the connecting plate 21 of the first connector 2 and to the ground via the second connecting plate of the second connector 3. To a certain extent, the connecting plate 21 of the first connector 2 and the second connecting plate of the second connector 3 act as a limit, ensuring that the size and shape of each radius (R-shaped foot) are consistent, thereby significantly improving construction quality, reducing production costs, and decreasing rework rate. Traditional plastering tools are "C"-shaped or arc-shaped, and if the operator moves them up and down during use, the shape of the radius (R-shaped foot) may be inconsistent, increasing the rework rate. This utility model is easy to use and does not require workers to rely on experience to control the size and surface flatness of the radius (R-shaped foot).

[0094] During the above-mentioned use, if it is necessary to carry out construction on a flat scene, if the fixing component 4 is a bolt component, simply loosen the nut 42 from the screw 41, and the first connector 2 and the second connector 3 can be used as a flat trowel.

[0095] If the fixing component 4 consists of a magnetic block 4a and a positioning post 4b, the operator only needs to hold the plastering board 1 with one hand and press the positioning post 4b with the other finger to push the first connector 2 or the second connector 3 out of the gap, and then detach it from the plastering board 1. The first connector 2 and the second connector 3 can then be used as a flat trowel. This design realizes the multi-functional use of the plastering tool. When combined, it can be used as a round-foot plastering tool. When disassembled, the first connector 2 and the second connector 3 can be used as a flat trowel tool. If the fixing component 4 consists of a magnetic block 4a and a positioning post 4b, it is not limited to the above disassembly and detachment method. It can also be disassembled and detached from the connection between each connecting plate and the mounting groove 11.

[0096] When construction is completed and no longer needed, clean the tools and detach the first connector 2 and the second connector 3 from the plasterboard 1 for easy storage and to reduce space occupation.

[0097] Finally, it should be noted that the concept, specific structure, and technical effects of this utility model have been clearly and completely described above in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections and connection relationships mentioned herein do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

Claims

1. A multifunctional plastering tool, characterized in that: include: Plastering board (1), the middle part of plastering board (1) is arc-shaped; The first connector (2) is detachably mounted on one side of the plasterboard (1) via several fixing components (4). The second connector (3) is detachably mounted on the other side of the plasterboard (1) by means of several fixing components (4); The outer end faces of the first connector (2) and the second connector (3) are flush with the plasterboard on the corresponding side.

2. The plastering tool according to claim 1, characterized in that: The plastering board (1) includes a first board and a second board that are perpendicular to each other. A transition arc structure is provided at the connection between the two boards. The outer surfaces of the first board and the second board are respectively provided with inwardly recessed mounting grooves (11). Each mounting groove (11) passes through the board and has a fixing hole (12) that is compatible with the fixing component (4).

3. The plastering tool according to claim 2, characterized in that: The plastering board (1) is also connected to reinforcing plates (5) at both ends inside.

4. The plastering tool according to claim 1 or 3, characterized in that: The first connector (2) includes: Connecting plate (21); A bracket (22) is attached to the middle of a connecting plate (21) at one end. Handle (23) is attached to the other end of bracket (22).

5. The plastering tool according to claim 4, characterized in that: The bracket (22) is T-shaped, and the lower end of the bracket (22) is connected in parallel to the middle of the length direction of the connecting plate (21). The handle (23) is arranged parallel to the lower end of the bracket (22), and the handle (23) is located above one end of the connecting plate (21).

6. The plastering tool according to claim 1, characterized in that: The second connector (3) has the same shape and structure as the first connector (2). The handle of the second connector (3) and the handle (23) of the first connector (2) are located at both ends of the plaster board (1) and on the same axis.

7. The plastering tool according to claim 1, characterized in that: The fixing component (4) is a bolt assembly, which includes: A screw (41) is fixedly connected at one end to one side of a connecting plate (21); Nut (42) is threaded onto screw (41).

8. The plastering tool according to claim 7, characterized in that: The screws (41) are arranged in a triangular pattern on one side of the connecting plate (21); The nut (42) is a wing nut.

9. The plastering tool according to claim 1, characterized in that: The fixing component (4) includes a magnetic block (4a), which is connected to the connection hole (13) of the plaster board body. The magnetic block (4a) is used to magnetically connect the first connector (2) and the second connector (3) to the mounting groove (11) on both sides of the plaster board (1). The adsorption end of the magnetic block (4a) is flush with the plaster board body.

10. The plastering tool according to claim 9, characterized in that: The fixing component (4) also includes a positioning post (4b), which is symmetrically connected to both ends of one side of the connecting plate (21) and is used to cooperate with the fixing hole (12) to complete the positioning work.

Citation Information

Patent Citations

  • R angle plastering tool

    CN213418394U