A roller brush for interior decoration
By incorporating bevels and a modular design on the roller brush, the problem of low painting quality and efficiency at wall corners is solved, achieving efficient painting results applicable to various wall surfaces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGYING ZHIHAO DECORATION ENGINEERING CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-14
AI Technical Summary
When using existing roller brushes to apply paint to special areas such as wall corners and right angles, it is difficult to guarantee the quality of the paint application, and the efficiency is low.
An interior decoration roller brush has been designed, which includes a main painting roller and a corner painting roller. The roller surface is set with bevels and bristles. Combined with a modular design, different painting rollers are connected by screws to adapt to different wall surface needs.
It improves the painting quality and efficiency at wall corners, reduces usage costs, and is suitable for efficient painting of both flat and corner walls.
Smart Images

Figure CN224495699U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roller brush technology, specifically a roller brush for interior decoration. Background Technology
[0002] Roller brushes are specialized tools for efficiently painting walls and ceilings in interior decoration. They absorb paint by rolling and release it evenly, achieving rapid coverage over large areas. Compared to brushes, they are 3-5 times more efficient and produce a smoother paint film. They are suitable for various materials such as latex paint, water-based paint, and artistic paint.
[0003] However, in the existing technology, when roller brushes are used on special parts of the wall such as corners and right angles, it is difficult to guarantee the quality of the coating due to structural limitations. Generally, special brushes are purchased and the coating is slowly applied, which is very inefficient. Therefore, an improved roller brush for interior decoration is needed to address this problem. Utility Model Content
[0004] The purpose of this utility model is to provide a roller brush for interior decoration to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an interior decoration roller brush, including a handle, a connecting rod fixedly mounted on one end of the handle, a rotating shaft fixedly mounted on the end of the connecting rod away from the handle, and a painting mechanism for painting walls mounted on the outer surface of the rotating shaft. The painting mechanism includes a main painting roller, a corner painting roller, a through hole, and a threaded hole. The main painting roller is movably mounted on the outer surface of the handle via a bearing, and a corner painting roller is mounted on one side of the main painting roller. The main painting roller has a through hole on its surface, and the corner painting roller has a threaded hole inside its interior.
[0006] Preferably, both the main paint roller and the corner paint roller have a beveled surface on one side, and the beveled surface, along with the surfaces of the main paint roller and the corner paint roller, is provided with bristles. Figure 5 As shown, due to the existence of this slope, the middle part of the main paint roller and the corner paint roller can be easily attached to the corner of the wall for painting, while this slope can be used to paint the two sides of the corner of the wall.
[0007] Preferably, the outer surface of the handle is provided with anti-slip protrusions, which can increase the friction of the handle surface to facilitate the grip and use by the staff.
[0008] Preferably, the painting mechanism further includes a flat wall painting roller. The corner painting roller can be removed with screws to install the flat wall painting roller. The flat wall painting roller has a large painting area and is more suitable for painting flat walls.
[0009] Preferably, a fixing screw is provided between the corner painting roller and the main painting roller. This device uses fixing screws to connect the main painting roller with other modular painting rollers, which is convenient to install and easy to operate, thus facilitating its widespread use.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] 1. This utility model features a narrow overall length for both the corner and main paint rollers after installation, with beveled surfaces on both. This allows the bristles in the middle of the main and corner paint rollers to easily adhere to the corners of the wall for painting, while the bevels can be used to paint the sides of the corner. This improves the painting quality at corners. The corner paint rollers can be removed with screws to install a flat wall paint roller, which has a larger painting area and is more suitable for painting flat walls, thus enhancing the painting effect of this device.
[0012] 2. The modular design of this utility model allows for the sharing of handles, shafts, bearings, and other structures, minimizing usage costs and making it convenient for construction workers to purchase and use. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of a roller brush for interior decoration according to this utility model;
[0014] Figure 2 This is a cross-sectional view of a roller brush for interior decoration according to this utility model;
[0015] Figure 3 This is a view of the overall structure of a flat wall painting roller for interior decoration according to the present invention.
[0016] Figure 4 This is an installation view of a flat wall painting roller for interior decoration according to the present invention;
[0017] Figure 5 This utility model relates to a roller brush for interior decoration. Figure 1 Top view.
[0018] In the diagram: 1. Handle; 2. Connecting rod; 3. Shaft; 4. Main painting roller; 5. Corner painting roller; 6. Through hole; 7. Threaded hole; 8. Bevel; 9. Anti-slip protrusion; 10. Flat wall painting roller; 11. Fixing screw. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-5 This utility model provides a technical solution: an interior decoration roller brush, including a handle 1, a connecting rod 2 fixedly installed at one end of the handle 1, and a rotating shaft 3 fixedly installed at the end of the connecting rod 2 away from the handle 1. A painting mechanism for painting walls is provided on the outer surface of the rotating shaft 3. The painting mechanism includes a main painting roller 4, a corner painting roller 5, a through hole 6, and a threaded hole 7. The main painting roller 4 is movably installed on the outer surface of the handle 1 through a bearing. A corner painting roller 5 is provided on one side of the main painting roller 4. A through hole 6 is opened on the surface of the main painting roller 4, and a threaded hole 7 is opened inside the corner painting roller 5.
[0021] Both the main painting roller 4 and the corner painting roller 5 have a bevel 8 on one side of their surfaces. The bevel 8, along with the surfaces of the main painting roller 4 and the corner painting roller 5, is provided with brush bristles. Figure 5 As shown, due to the existence of this slope 8, the middle position of the main painting roller 4 and the corner painting roller 5 can be easily attached to the corner of the wall for painting, while this slope 8 can be used to paint the two sides of the corner of the wall.
[0022] The outer surface of the handle 1 is provided with anti-slip protrusions 9, which can increase the friction of the handle 1 surface to make it easier for staff to grip and use.
[0023] The painting mechanism also includes a flat wall painting roller 10. The corner painting roller 5 can be removed with screws to install the flat wall painting roller 10. The flat wall painting roller 10 has a large painting area and is more suitable for painting flat walls.
[0024] A fixing screw 11 is provided between the corner painting roller 5 and the main painting roller 4. This device uses the fixing screw 11 to connect the main painting roller 4 with other modular painting rollers, which is convenient to install and easy to operate, thus facilitating its widespread use.
[0025] Working principle: When using this device, the main painting roller 4 and the connecting rod 2 handle 1 cannot be disassembled. However, the main painting roller 4 can be equipped with other functional painting rollers of different modules according to painting needs. After installing the corner painting roller 5, such as... Figure 5As shown, since the corner paint roller 5 and the main paint roller 4 are very narrow after installation, and both have beveled surfaces 8, the bristles of the main paint roller 4 and the corner paint roller 5 in the middle can easily fit against the corner of the wall for painting. The beveled surface 8 can be used to paint the two sides of the corner. Although there is still some analysis of the bristles and the corner in the figure, since the bristles are soft, the brush only needs to be pushed to make the bristles fit against the wall. This can improve the painting quality at the corner. Accordingly, the corner paint roller 5 can be removed with screws to install the flat wall paint roller 10. The flat wall paint roller 10 has a large painting area and is more suitable for painting flat walls, thus improving the painting effect of this device.
[0026] Furthermore, this device features a modular design, allowing the use of a shared handle 1, shaft 3, bearings, and other components, thereby minimizing operating costs and making it convenient for construction personnel to purchase and use.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A roller brush for interior decoration, comprising a handle (1), characterized in that: A connecting rod (2) is fixedly installed at one end of the handle (1), and a rotating shaft (3) is fixedly installed at the end of the connecting rod (2) away from the handle (1). A painting mechanism for painting the wall is provided on the outer surface of the rotating shaft (3). The painting mechanism includes a main painting roller (4), a corner painting roller (5), a through hole (6), and a threaded hole (7). The main painting roller (4) is movably installed on the outer surface of the handle (1) through a bearing. A corner painting roller (5) is provided on one side of the main painting roller (4). A through hole (6) is opened on the surface of the main painting roller (4), and a threaded hole (7) is opened inside the corner painting roller (5).
2. The roller brush for interior decoration according to claim 1, characterized in that: The main paint roller (4) and the corner paint roller (5) are both provided with a slope (8) on one side of their surfaces. The slope (8) is consistent with the surfaces of the main paint roller (4) and the corner paint roller (5) and is provided with bristles.
3. The roller brush for interior decoration according to claim 1, characterized in that: The outer surface of the handle (1) is provided with anti-slip protrusions (9).
4. The indoor decoration roller brush according to claim 1, characterized in that: The painting mechanism also includes a flat wall painting roller (10).
5. A roller brush for interior decoration according to claim 1, characterized in that: A fixing screw (11) is provided between the corner painting roller (5) and the main painting roller (4).