Telescopic internal corner brushing device
By designing a telescopic female corner brushing device, the corner structure of the roller bracket and the L-shaped continuous structure of the female corner brush are solved, and the existing brushing tools are able to achieve uniform and efficient brushing of the female corners, improving the quality and efficiency of the brushing.
Patent Information
- Application Number
- CN202422202136.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-09
AI Technical Summary
Existing brushing tools are difficult to fit effectively in the negative corners, resulting in difficulty or inadequate brushing, and prone to color difference, affecting the quality of brushing.
A telescopic female corner brushing device is designed, including a telescopic hand rod, a female corner brush, a wall roller brush and a roller support. The corner structure of the roller support matches the female corner, and the female corner brush extends to both sides from the corner to form an L-shaped continuous brushing structure.
This device can effectively fit the part of the corner, realize synchronous painting of the walls on both sides of the corner, avoid inadequate painting and color difference, improve the efficiency and quality of the painting, and reduce labor costs and working hours.
Smart Images

Figure CN222991101U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of decoration construction tools, in particular to a telescopic internal corner painting device. Background Technique
[0002] During the decoration and construction process, coatings such as imitation fair-faced concrete surface coatings and paints need to be roller-coated onto the wall surface. During the construction process, most conventional painting tools are roller brushes. For example, the Chinese utility model patent CN221524117U discloses a portable roller brush, which includes a roller brush and a portable mechanism. It meets the requirements of painting different height environments through a grip rod, a connecting rod, a rotating shaft, and a telescopic rod. By connecting the grip rod to the roller brush and using the telescopic rod for height adjustment, by opening the inner cylinder cover and pouring paint into the paint storage cylinder, the paint will flow into the connecting ring through the paint outlet hole. When the roller brush is painting the wall surface, the balls on the outer side of the connecting ring will rotate, bringing the internal paint to the bristles of the roller brush.
[0003] When using the painting tools of the prior art to paint the internal corner part, since the internal corner part mostly has a right-angle corner structure, the end of the roller cannot effectively fit the internal corner part, which easily leads to difficulties or incomplete painting in the internal corner part, requiring subsequent supplementary painting, and it is also easy to form color differences in the internal corner part, affecting the painting quality. Therefore, it is necessary to provide a telescopic internal corner painting device that can solve the problems of difficult painting and incomplete painting of the painting tools in the prior art in the internal corner part. Summary of the Invention
[0004] The purpose of the utility model is to provide a telescopic internal corner painting device that can solve the problems of difficult painting and incomplete painting of the painting tools in the prior art in the internal corner part.
[0005] The utility model is realized as follows:
[0006] A telescopic internal corner painting device includes a telescopic hand-held rod, an internal corner brush, a wall roller brush, and a roller bracket; the first connection end of the roller bracket is connected to the telescopic hand-held rod, and two wall roller brushes are respectively rotatably installed on the second connection end and the third connection end of the roller bracket; the connection part between the second connection end and the third connection end of the roller bracket is a corner structure matching the internal corner, and the internal corner brush is arranged on the second connection end and the third connection end of the roller bracket, and the internal corner brush extends from the connection part between the second connection end and the third connection end of the roller bracket to both sides to the two wall roller brushes, so that the two wall roller brushes can respectively roll and fit on the two side walls of the internal corner, and the internal corner brush simultaneously actively fits on the internal corner.
[0007] The described roller bracket includes a first rod, a second rod, and a third rod. The second rod and the third rod are located in the same plane and are connected to form an L-shaped structure that matches the internal corner. One end of the first rod is fixedly connected to the corner position of the L-shaped structure, and the other end of the first rod is fixedly connected to the telescopic hand-held rod. Two wall roller brushes are rotatably sleeved on the second rod and the third rod. The internal corner brush is arranged on the second rod and the third rod between the two wall roller brushes and forms an L-shaped continuous painting structure with the two wall roller brushes.
[0008] The described first rod, second rod, and third rod are perpendicularly connected to each other in pairs.
[0009] The internal corner brush is composed of several adsorption-type soft hairs, and the several adsorption-type soft hairs are densely arranged on the second rod and the third rod between the two wall roller brushes.
[0010] The end of the internal corner brush located on the second rod is flush with the surface of the wall roller brush located on the second rod, and the end of the internal corner brush located on the third rod is flush with the surface of the wall roller brush located on the third rod.
[0011] The described telescopic hand-held rod includes multiple telescopic rods, and the multiple telescopic rods are sequentially movably sleeved to form a telescopic rod.
[0012] Compared with the prior art, the present utility model has the following beneficial effects:
[0013] 1. Since the present utility model is provided with an internal corner brush, wall roller brushes, and a roller bracket, the two wall roller brushes are respectively rotatably sleeved on the second rod and the third rod of the roller bracket, and can be used for synchronously painting the walls on both sides of the internal corner. The internal corner brush is densely arranged on the second rod and the third rod between the two wall roller brushes, and can be used for synchronously painting the internal corner part, forming an L-shaped continuous painting tool and being able to move up and down along the internal corner part, so that there is no dead angle in the painting of the internal corner part, thus solving the problem of difficult or incomplete painting of the internal corner part in the prior art, eliminating the need for subsequent supplementary painting, ensuring uniform painting while improving painting efficiency and appearance quality, and reducing labor costs and working hours.
[0014] 2. Since the present utility model is provided with a telescopic hand-held rod, the length can be adjusted through multi-stage telescoping to meet the painting requirements at different heights, further improving the painting efficiency of the internal corner part, enabling the painting of the internal corner part to be formed in one go with excellent quality, and being operable with one hand, and being convenient to carry and use, with diverse application scenarios. Description of the Drawings
[0015] Figure 1 is a perspective view of the telescopic internal corner painting device of the present utility model.
[0016] In the figure, 1 is a telescopic hand-held rod, 2 is an internal corner brush, 3 is a wall roller brush, 4 is a roller bracket, 41 is the first rod, 42 is the second rod, and 43 is the third rod. Detailed implementation mode
[0017] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0018] Please refer to the attached Figure 1 , a telescopic internal corner painting device, including a telescopic hand-held rod 1, an internal corner brush 2, a wall roller brush 3 and a roller bracket 4; the first connection end of the roller bracket 4 is connected to the telescopic hand-held rod 1, and two wall roller brushes 3 are respectively rotatably installed on the second connection end and the third connection end of the roller bracket 4; the connection part between the second connection end and the third connection end of the roller bracket 4 is a corner structure matching the internal corner, and the internal corner brush 2 is arranged on the second connection end and the third connection end of the roller bracket 4, and the internal corner brush 2 extends from the connection part between the second connection end and the third connection end of the roller bracket 4 to both sides to the two wall roller brushes 3, so that the two wall roller brushes 3 can respectively roll and fit on the walls on both sides of the internal corner, and the internal corner brush 2 is simultaneously movably fitted at the internal corner.
[0019] The included angle between the second connection end and the third connection end of the roller bracket 4 is the same as the angle of the internal corner. Usually, the internal corner is 90°, so the second connection end and the third connection end of the roller bracket 4 can be vertically connected to ensure that the internal corner brush 2 and the two wall roller brushes 3 on the second connection end and the third connection end can simultaneously fit on the internal corner part and the walls on both sides.
[0020] Before painting, dip the internal corner brush 2 and the two wall roller brushes 3 in an appropriate amount of paint, and hold the telescopic hand-held rod 1 and move it along the height direction of the internal corner, then the internal corner brush 2 and the two wall roller brushes 3 can evenly and synchronously paint the internal corner part and the walls on both sides, with uniform painting, high efficiency, one-time forming and one-time excellent forming.
[0021] The roller bracket 4 includes a first rod 41 (as the first connection end), a second rod 42 (as the second connection end) and a third rod 43 (as the third connection end). The second rod 42 and the third rod 43 are located in the same plane and are connected into an L-shaped structure matching the internal corner. One end of the first rod 41 is fixedly connected to the corner position of the L-shaped structure, and the other end of the first rod 41 is fixedly connected to the telescopic hand-held rod 1; two wall roller brushes 3 are rotatably sleeved on the second rod 42 and the third rod 43, and the internal corner brush 2 is arranged on the second rod 42 and the third rod 43 between the two wall roller brushes 3 and forms an L-shaped continuous painting structure with the two wall roller brushes 3.
[0022] The second rod 42 and the third rod 43 can adopt circular rods, which are used to install two wall roller brushes 3 through rotating bearings, facilitating the rolling of the two wall roller brushes 3 on the second rod 42 and the third rod 43, and realizing the wall painting operation.
[0023] Since the ends of the two wall roller brushes 3 cannot be connected into a corner structure, by arranging the internal corner brush 2 on the second rod 42 and the third rod 43 between the two wall roller brushes 3, an L-shaped continuous painting structure is formed between the ends of the two wall roller brushes 3, and it can match and fit the shape of the internal corner, ensuring a uniform painting effect at one time for the internal corner part.
[0024] Preferably, the first rod 41, the second rod 42 and the third rod 43 are perpendicularly connected to each other in pairs to adapt to the 90° internal corner structure.
[0025] The internal corner brush 2 is composed of several adsorption-type soft hairs, and the several adsorption-type soft hairs are densely arranged on the second rod 42 and the third rod 43 between the two wall roller brushes 3.
[0026] The material and arrangement density of the adsorption-type soft hairs can be adjusted adaptively according to the actual painting requirements to ensure that the adsorption-type soft hairs can adsorb enough paint and evenly coat it to the internal corner. The adsorption-type soft hairs serve as a supplement to the gap between the two wall roller brushes 3, so as to paint the internal corner part while painting the wall, without subsequent supplementary painting, and the painting is uniform, and the appearance forming quality is good.
[0027] The dense arrangement is specifically as follows: the adsorption-type soft hairs horizontally extend outward perpendicular to the axial direction of the second rod 42, extend obliquely upward and obliquely downward, and at the same time, horizontally extend outward perpendicular to the axial direction of the third rod 43, extend obliquely upward and obliquely downward, so that the ends of the several adsorption-type soft hairs form an L-shaped painting surface that matches the internal corner, so as to ensure effective fitting and sufficient painting with the wall surface at the internal corner turning, and it is formed in one painting, thus ensuring the painting effect.
[0028] The end of the internal corner brush 2 located on the second rod 42 is flush with the surface of the wall roller brush 3 located on the second rod 42, and the end of the internal corner brush 2 located on the third rod 43 is flush with the surface of the wall roller brush 3 located on the third rod 43.
[0029] The ends of the internal corner brush 2 are flush with the surfaces of the two wall roller brushes 3, so that the internal corner brush 2 and the two wall roller brushes 3 can be simultaneously attached to the internal corner and the two side walls, ensuring the uniformity, efficiency and beauty of the painting.
[0030] The telescopic handheld rod 1 includes multiple telescopic rods, and the multiple telescopic rods are sequentially movably sleeved to form a telescopic rod.
[0031] Preferably, the telescopic handheld rod 1 can adopt the telescopic rod member structures such as pneumatic type and mechanical type in the prior art to adjust the length of the telescopic handheld rod 1 to meet the painting requirements at different heights.
[0032] Preferably, the wall roller brush 3 can adopt a painting roller with a diameter of 0.8 cm, the internal corner brush 2 adopts adsorption-type soft hairs, which are densely arranged, and the telescopic handheld rod 1 adopts a three-section telescopic rod member with a length adjustment range of 0.4 m to 3 m.
[0033] Please refer to the attached Figure 1 , the usage method of the present utility model for painting at the internal corner is as follows:
[0034] The construction worker holds the telescopic handheld rod 1 and dips the internal corner brush 2 and the two wall roller brushes 3 into the paint. During painting, the corner part of the internal corner brush 2 is aligned with the internal corner part, so that the internal corner brush 2 is attached to the corner wall surface of the internal corner, and the two wall roller brushes 3 are respectively attached to the wall surfaces on both sides of the internal corner. Move the telescopic handheld rod 1 up and down, so that the internal corner brush 2 and the two wall roller brushes 3 simultaneously paint the internal corner part and the wall surfaces on both sides thereof. The internal corner part is painted in one go and the painting is relatively uniform.
[0035] According to the painting height, the telescopic handheld rod 1 can be telescopically adjusted to meet the painting requirements of different height parts. It is also possible to pneumatically control the automatic telescoping of the telescopic handheld rod 1 during the painting process to more easily and labor-savingly complete the painting of the internal corner part.
[0036] The above are only the preferred embodiments of the present utility model and are not used to limit the protection scope of the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A telescopic internal corner painting device, characterized in that: The invention comprises a telescopic hand-held rod (1), a internal corner brush (2), a wall roller brush (3) and a roller bracket (4); the first connection end of the roller bracket (4) is connected to the telescopic hand-held rod (1), and two wall roller brushes (3) are respectively rollably mounted on the second connection end and the third connection end of the roller bracket (4); the connection between the second connection end and the third connection end of the roller bracket (4) is a corner structure matching the internal corner, the internal corner brush (2) is arranged on the second connection end and the third connection end of the roller bracket (4), and the internal corner brush (2) extends from the connection between the second connection end and the third connection end of the roller bracket (4) to the two wall roller brushes (3) on both sides, so that the two wall roller brushes (3) can be respectively rollably attached to the walls on both sides of the internal corner, and the internal corner brush (2) is simultaneously movably attached to the internal corner corner.
2. The telescopic inner corner painting device according to claim 1 is characterized in that: The roller bracket (4) comprises a first rod (41), a second rod (42) and a third rod (43); the second rod (42) and the third rod (43) are located in the same plane and connected to form an L-shaped structure matching the internal angle; one end of the first rod (41) is fixedly connected to the corner position of the L-shaped structure, and the other end of the first rod (41) is fixedly connected to the telescopic hand-held rod (1); two wall roller brushes (3) are rollably sleeved on the second rod (42) and the third rod (43); the internal angle brush (2) is arranged on the second rod (42) and the third rod (43) between the two wall roller brushes (3) and forms an L-shaped continuous brushing structure with the two wall roller brushes (3).
3. The telescopic inner corner painting device according to claim 2 is characterized in that: The first rod (41), the second rod (42) and the third rod (43) are vertically connected in pairs.
4. The telescopic inner corner painting device according to claim 1 or 2, characterized in that: The inner corner brush (2) is composed of a plurality of adsorption-type soft bristles, and the plurality of adsorption-type soft bristles are densely arranged on the second rod (42) and the third rod (43) between the two wall roller brushes (3).
5. The telescopic inner corner painting device according to claim 4 is characterized in that: The end of the internal corner brush (2) located on the second rod (42) is flush with the surface of the wall roller brush (3) located on the second rod (42), and the end of the internal corner brush (2) located on the third rod (43) is flush with the surface of the wall roller brush (3) on the third rod (43).
6. The telescopic inner corner painting device according to claim 1 is characterized in that: The telescopic hand-held rod (1) comprises a plurality of telescopic rod sections, which are movably sleeved in sequence to form a telescopic rod member.
Citation Information
Patent Citations
Portable roller brush
CN221524117U