A wall corner use wool board brush

By designing a corner brush with rotating wheels and an angle-adjustable base, the problem of painting paint onto another wall surface was solved, improving the efficiency and aesthetics of corner painting.

CN224379342UActive Publication Date: 2026-06-19NINGBO AOSIDA TOOLS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO AOSIDA TOOLS CO LTD
Filing Date
2025-07-10
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing brushes tend to spread paint onto other walls when painting corners, resulting in irregular patterns and bumps, which affects construction efficiency and quality, and is also unsightly.

Method used

A corner brush has been designed, comprising a brush plate, a housing, a rotating wheel, a mounting base, a rotating base, an angle adjustment base, and a limiting component. The rotating wheel provides support, the angle adjustment base ensures that the brush plate is parallel to the corner to prevent paint from being applied to another wall, and the limiting component and spring steel ball achieve positioning.

Benefits of technology

It effectively prevents paint from being applied to another wall, improving the efficiency and quality of corner painting and resulting in a more aesthetically pleasing finish.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224379342U_ABST
    Figure CN224379342U_ABST
Patent Text Reader

Abstract

This utility model discloses a corner brush, including a brush plate, a housing, rotating wheels, a mounting base, a rotating base, an angle adjustment base, and a limiting component. The housing has a rotating hole at the center of its end face and slots on both sides. The rotating base has a rotating shaft on its bottom end face, which is rotatably connected to the top end face of the housing through the rotating hole. The rotating shaft has an embedding groove on its outer edge. The limiting component is disposed on one side of the rotating hole on the inner end face of the housing. The rotating base has a mounting groove on its top. The angle adjustment base is hinged in the mounting groove through a front hinge shaft. The brush plate is fixedly connected to the bottom end face of the housing. The mounting base is fixed between the brush plate and the housing. Rotating wheels are rotatably connected to both sides of the front end of the mounting base. Because the outer edge of the rotating wheel protrudes from the housing and the mounting base, and the tangent of the rotating wheel is parallel to the front side of the housing, the rotating wheel abuts against the other side of the wall when painting the corner edge, providing support and preventing the brush from painting paint onto the other wall surface.
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Description

Technical Field

[0001] This utility model relates to the field of decoration tools, and in particular to a corner brush. Background Technology

[0002] A brush is a decorative tool used to paint walls. However, when using existing brushes to paint corners, the angle between the corners and the separate painting of the two sides of the wall at the corner can cause paint to be easily spread to the other wall at the junction, resulting in various irregular patterns or even bumps. This not only affects the efficiency and quality of the wall corner painting but also makes the painted wall look unsightly. Therefore, a new brush for wall corners has been designed to solve the above problems. Utility Model Content

[0003] In view of the shortcomings of existing decoration tools, the purpose of this utility model is to provide a corner brush, which has the advantages of being easy to use for painting corners and having a good painting effect.

[0004] To achieve the above objectives, the present invention employs the following technical solution: a corner brush, comprising a brush plate, a housing, rotating wheels, a mounting base, a rotating base, an angle adjustment base, and a limiting component. The housing has a rotating hole at its center and slots on both sides. The rotating base has a rotating shaft on its bottom surface, which is rotatably connected to the top surface of the housing via the rotating hole. The rotating shaft has an embedding groove along its outer edge. The limiting component is located on one side of the rotating hole on the inner surface of the housing and is used to engage with the rotating shaft in the embedding groove for positioning. The rotating base has a mounting groove at its top, with hinge shafts and positioning pins on both sides of the mounting groove. The angle adjustment base is hinged to the mounting groove via the front hinge shaft, and the positioning pins are used to position the angle adjustment base. The brush plate has buckles on its top surface corresponding to the slots on both sides of the housing. The brush plate is fixedly connected to the bottom surface of the housing via the buckles and slots. A mounting base located at the front end of the housing is also fixed between the brush plate and the housing. Rotating wheels are rotatably connected to both sides of the front end of the mounting base.

[0005] Preferably, the angle adjustment base has an arc-shaped positioning groove in the middle, and a base hinged to the hinge shaft is provided in the arc-shaped positioning groove. The inner wall of the arc-shaped positioning groove has multiple positioning protrusions set at equal angles. The positioning protrusions are used to position the positioning pin. The center of the arc-shaped positioning groove is concentric with the rotation center of the angle adjustment base. The positioning pin abuts against the inner wall of the arc-shaped positioning groove. During the process of manually applying external force to rotate the angle adjustment base, the positioning pin will move between the positioning protrusions on the inner wall of the arc-shaped positioning groove. During the movement, the positioning pin will deform to facilitate the rotation of the angle adjustment base. When the angle adjustment base does not rotate, the positioning pin will be stuck between two positioning protrusions, thereby restricting the rotation of the angle adjustment base.

[0006] Preferably, the outer edge of the rotating wheel protrudes from the housing and the mounting base, and the tangent of the rotating wheel is parallel to the front side edge of the housing;

[0007] Preferably, the rear end of the angle adjustment base also has a threaded hole for screwing in and fixing the extension rod;

[0008] Preferably, the bottom end face of the brush plate is bonded with brush bristles for brushing;

[0009] Preferably, the limiting component has a limiting groove, a spring, and a limiting steel ball. The limiting groove is disposed on one side of the rotating hole on the inner end face of the housing. The spring and the limiting steel ball are disposed in the limiting groove. The spring forces the limiting steel ball to be inserted into the groove of the rotating shaft for limiting.

[0010] The beneficial effects of this utility model are: 1. Because the outer edge of the rotating wheel protrudes from the housing and the mounting base, and the tangent of the rotating wheel is parallel to the front side of the housing, the rotating wheel provides support against the other side of the wall when painting the corner edge, thereby preventing the brush from painting the paint onto the other wall surface; 2. During the painting process, external force can be applied manually to rotate the angle adjustment base, and the rotating connection between the rotating base and the housing ensures that the brush bristles on the end face of the brush plate are completely in contact with the wall surface, and the brush plate can always be parallel to the corner, so as to improve the overall painting effect. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural view of the present invention;

[0012] Figure 2 This is a three-dimensional structural view of the rotating base of this utility model;

[0013] Figure 3 This is a three-dimensional structural view of the angle adjustment base of this utility model;

[0014] Figure 4 This is a three-dimensional structural view of the brush plate of this utility model;

[0015] Figure 5 This is a three-dimensional structural view of the shell of this utility model;

[0016] Figure 6 This is a three-dimensional structural view of the rotating base and the housing of this utility model in connection.

[0017] Figure 7 This is a three-dimensional structural view of the mounting base and rotating wheel assembly of this utility model. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0019] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0020] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "equipped with," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Please see Figures 1 to 7 The embodiments of this utility model include:

[0022] A corner brush includes a brush plate 1, a housing 2, a rotating wheel 3, a mounting base 4, a rotating base 5, an angle adjusting base 6, and a limiting component 7. The housing 2 has a rotating hole 21 at its center and slots 22 on both sides. The rotating base 5 has a rotating shaft 51 on its bottom surface, which is rotatably connected to the top surface of the housing 2 through the rotating hole 21. The outer edge of the rotating shaft 51 has an embedding groove 53. The limiting component 7 is disposed on one side of the rotating hole 21 on the inner end face of the housing 2. The limiting component 7 is used to engage with the rotating shaft 51 in the embedding groove 53 for positioning. The top of the rotating base 5 has... The device has a mounting groove 52, and the two side walls of the mounting groove 52 have hinge shafts 521 and positioning pins 522. The angle adjustment base 6 is hinged to the mounting groove 52 via the front hinge shaft 521. The positioning pins 522 are used to position the rotation of the angle adjustment base 6. The top surface of the brush plate 1 has buckles 11 corresponding to the positions of the slots 22 on both sides of the housing 2. The brush plate 1 is fixedly connected to the bottom surface of the housing 2 via the buckles 11 and the slots 22. A mounting base 4 located at the front end of the housing 2 is also fixed between the brush plate 1 and the housing 2. Rotating wheels 3 are rotatably connected to both sides of the front end of the mounting base 4.

[0023] The angle adjustment base 6 has an arc-shaped positioning groove 61 in the middle. A base 62 hinged to the hinge shaft 521 is provided in the arc-shaped positioning groove 61. The inner wall of the arc-shaped positioning groove 61 has a plurality of positioning protrusions 63 arranged at equal angles. The positioning protrusions 63 are used to position the positioning pin 522. The center of the arc-shaped positioning groove 61 is concentric with the rotation center of the angle adjustment base 6. The positioning pin 522 abuts against the inner wall of the arc-shaped positioning groove 61. During the process of manually applying external force to rotate the angle adjustment base 6, the positioning pin 522 will move between the positioning protrusions 63 on the inner wall of the arc-shaped positioning groove 61. During the movement, the positioning pin 522 will deform to facilitate the rotation of the angle adjustment base 6. When the angle adjustment base 6 does not rotate, the positioning pin 522 will be stuck between two positioning protrusions 63, thereby restricting the rotation of the angle adjustment base 6.

[0024] The outer edge of the rotating wheel 3 protrudes from the housing 2 and the mounting base 4, and the tangent of the rotating wheel 3 is parallel to the front side of the housing 2;

[0025] The rear end of the angle adjustment base 6 also has a threaded hole 64 for screwing in and fixing the extension rod;

[0026] The bottom end face of the brush plate 1 is glued with brush bristles for brushing;

[0027] The limiting component 7 has a limiting groove 71, a spring 72 and a limiting steel ball 73. The limiting groove 71 is located on one side of the rotating hole 21 on the inner end face of the housing 2. The spring 72 and the limiting steel ball 73 are located in the limiting groove 71. The spring 72 forces the limiting steel ball 73 to be inserted into the groove 53 of the rotating shaft 51 for limiting.

[0028] With the above settings, its specific working principle in actual operation is as follows:

[0029] When painting the corner, the rotating wheel 3 at the front end of the housing 2 is pressed against the wall on the other side, and the brush is pushed to paint parallel to the corner. Since the outer edge of the rotating wheel 3 protrudes from the housing 2 and the mounting base 4, and the tangent of the rotating wheel 3 is parallel to the front side of the housing 2, the rotating wheel 3 provides support against the wall on the other side when painting the corner edge, thereby preventing the brush from painting the paint onto the other wall surface.

[0030] Meanwhile, during the painting process, external force can be manually applied to rotate the angle adjustment base 6, and the rotation connection between the rotating base 5 and the housing 2 can make the brush bristles on the end face of the brush plate 1 completely fit the wall surface, and the brush plate 1 can always be parallel to the corner of the wall, so as to improve the overall painting effect.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A wall corner putty brush characterized by, The device includes a brush plate, a housing, rotating wheels, a mounting base, a rotating base, an angle adjustment base, and a limiting component. The housing has a rotating hole at its center and slots on both sides. The rotating base has a rotating shaft on its bottom surface, which is rotatably connected to the top surface of the housing through the rotating hole. The outer edge of the rotating shaft has an embedding groove. The limiting component is located on one side of the rotating hole on the inner surface of the housing and is used to engage with the rotating shaft in the embedding groove for positioning. The top of the rotating base has a mounting groove, and the two side walls of the mounting groove have hinge shafts and positioning pins. The angle adjustment base is hinged to the mounting groove through the front hinge shaft, and the positioning pin is used to position the rotation of the angle adjustment base. The top surface of the brush plate has buckles corresponding to the slots on both sides of the housing. The brush plate is fixedly connected to the bottom surface of the housing through the buckles and slots. A mounting base located at the front end of the housing is also fixed between the brush plate and the housing. Rotating wheels are rotatably connected to both sides of the front end of the mounting base.

2. A wall corner beading brush according to claim 1, wherein The angle adjustment base has an arc-shaped positioning groove in the middle. The arc-shaped positioning groove is equipped with a base that is hinged to the hinge shaft. The inner wall of the arc-shaped positioning groove has multiple positioning protrusions set at equal angles. The positioning protrusions are used to position the positioning pin. The center of the arc-shaped positioning groove is concentric with the rotation center of the angle adjustment base. The positioning pin abuts against the inner wall of the arc-shaped positioning groove.

3. A wall corner beading brush according to claim 1, wherein The outer edge of the rotating wheel protrudes from the housing and the mounting base, and the tangent of the rotating wheel is parallel to the front side of the housing.

4. A wall corner beading brush according to claim 1, wherein The rear end of the angle adjustment base also has a threaded hole for screwing in and fixing the extension rod.

5. A corner brush according to claim 1, characterized in that, The bottom surface of the brush plate is glued with brush bristles for brushing.

6. A wall corner beading brush according to claim 1, wherein The limiting component has a limiting groove, a spring, and a limiting steel ball. The limiting groove is located on one side of the rotating hole on the inner end face of the housing. The spring and the limiting steel ball are located in the limiting groove. The spring forces the limiting steel ball to be inserted into the groove of the rotating shaft for limiting.