Double-drum roller brush for building painting

By designing an adjustable-length handle assembly and an easily replaceable brush cloth assembly, the problems of low efficiency and poor usability of existing roller brushes are solved, enabling safe and efficient painting operations.

CN224161377UActive Publication Date: 2026-04-24ANHUI VENUS IMPORT & EXPORT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI VENUS IMPORT & EXPORT CO LTD
Filing Date
2025-05-23
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing single-cylinder roller brushes for building painting are inefficient, have difficulty adjusting the handle length, pose safety hazards, and the brush bristles easily harden while the roller has poor utilization.

Method used

A double-cylinder roller brush for architectural painting was designed. By setting up a handle assembly and a brush cloth assembly, the handle length is adjusted by connecting a threaded slip ring and a threaded screw, and the brush cloth is fixed by Velcro and positioning protrusions, so as to achieve convenient replacement and fixation.

Benefits of technology

It improves ease of use and roller utilization, reduces replacement costs, avoids the hassle of brush detachment and frequent cleaning, and enhances work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of building roller brushes, and discloses a double-drum type roller brush for building painting, which comprises a brush handle, the front end and the rear end of the outer wall of one side of the brush handle are both rotatably connected with a roller, the roller body of the roller is provided with a cloth brushing assembly, and the cloth brushing assembly comprises positioning grooves formed in the two sides of the roller body. A mounting groove is formed in the middle of the roller body, the inner bottom face of the mounting groove is fixedly connected with a hook face of a hook-and-loop fastener, the roller body is sleeved with brush cloth, the front end and the rear end of the lower surface of the brush cloth are fixedly connected with loop faces of the hook-and-loop fastener, and the two sides of the lower surface of the brush cloth are fixedly connected with positioning protruding blocks. According to the utility model, the positioning convex blocks of the brush cloth are aligned with the positioning grooves of the roller, and then the loop surfaces of the magic tapes at the two ends of the brush cloth are matched with the hook surfaces of the magic tapes, so that the brush cloth is fixed on the outer wall of the roller, the brush cloth can be directly replaced after being used, and the usability of the roller is improved to a certain extent.
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Description

Technical Field

[0001] This utility model relates to the field of building roller brushes, and more particularly to a double-cylinder roller brush for building painting. Background Technology

[0002] With the rapid development of the construction industry, building painting has become an important part of construction. When painting, a roller brush is needed. However, the existing roller brushes are generally single-cylinder, which are relatively inefficient and require repeated brushing, thus affecting work efficiency. Therefore, a double-cylinder roller brush for building painting is proposed.

[0003] Current twin-cylinder roller brushes cannot effectively adjust the handle length according to the user's needs. This requires the user to stand on a ladder when painting higher areas, which is dangerous and necessitates frequent ladder movements, making it inconvenient. In addition, most existing roller brushes are disposable. If the residue on the brush is not cleaned promptly after use, the brush will harden, resulting in poor efficiency in the next use. Since the brush and roller are integrated, when the brush hardens, the roller also becomes unusable, thus reducing the roller's usability to a certain extent.

[0004] Therefore, in order to solve the aforementioned technical problems in use, a double-cylinder roller brush for building painting is proposed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a double-cylinder roller brush for architectural painting. Through a designed handle assembly, a threaded slip ring is rotated and then threadedly connected to a threaded screw. This allows the slip ring to drive the handle rod to slide along the screw, thereby adjusting the length of the entire handle assembly. This allows the user to adjust the length of the handle according to their needs.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A double-cylinder roller brush for building painting includes a brush handle, with rollers rotatably connected to the front and rear ends of one side outer wall of the brush handle. A handle assembly is provided at the rear end of the brush handle. The handle assembly includes a threaded screw fixedly connected to the rear outer wall of the brush handle. A handle rod is sleeved at the rear end of the threaded screw. A threaded slip ring is rotatably connected to the edge of the front outer wall of the handle rod.

[0008] The roller body is provided with a brush cloth assembly. The brush cloth assembly includes positioning grooves on both sides of the roller body, an installation groove in the middle of the roller body, a Velcro hook surface fixedly connected to the inner bottom surface of the installation groove, a brush cloth sleeved on the roller body, a Velcro nap fixedly connected to the front and rear ends of the lower surface of the brush cloth, and positioning protrusions fixedly connected to both sides of the lower surface of the brush cloth.

[0009] Through the above technical solution, the length of the roller brush handle can be effectively adjusted by the set handle assembly, thereby improving the convenience of use. Furthermore, the set brush cloth assembly can effectively replace the brush cloth, thereby improving the utilization of the roller.

[0010] Furthermore, the inner wall of the threaded slip ring is threadedly connected to the body of the threaded screw, and a storage groove is provided inside the handle rod, in which the threaded screw slides.

[0011] Through the above technical solution, the handle rod can be effectively moved by rotating the threaded slip ring, thereby adjusting the length and effectively storing one end of the threaded rod through the storage groove.

[0012] Furthermore, the hook and loop surfaces of the hook and loop fasteners all mate with each other;

[0013] The above technical solution effectively mounts the brush cloth onto the outer wall of the roller by using the hook and loop fasteners.

[0014] Furthermore, the positioning protrusion is made of flexible silicone material, and the outer wall of the positioning protrusion is in close contact with the inner wall of the positioning groove;

[0015] The above technical solution effectively fixes the position of the brush cloth by using the positioning protrusions and positioning grooves, thus preventing the brush cloth from falling off during use.

[0016] Furthermore, the outer wall of the threaded slip ring is provided with anti-slip texture;

[0017] The above technical solution allows for easier rotation of the threaded slip ring through the anti-slip texture.

[0018] Furthermore, the brush cloth is composed of polyester fibers and non-woven fabric;

[0019] The above technical solution can effectively reduce the replacement cost of the brush cloth.

[0020] This utility model has the following beneficial effects:

[0021] 1. The present invention proposes a double-cylinder roller brush for building painting. Through the set handle assembly, by rotating the threaded slip ring, and then the threaded slip ring is threadedly connected to the threaded screw, so that the threaded slip ring drives the handle rod to slide on the body of the threaded screw, thereby adjusting the length of the entire handle assembly, so that the user can adjust the length of the entire handle according to the needs.

[0022] 2. The present invention proposes a double-cylinder roller brush for building painting. Through the set brush cloth assembly, the positioning protrusions of the brush cloth are aligned with the positioning grooves of the roller, and then the Velcro naps at both ends of the brush cloth are engaged with the Velcro hooks to fix the brush cloth to the outer wall of the roller. Thus, the brush cloth can be directly replaced after use, thereby improving the utilization of the roller to a certain extent. Attached Figure Description

[0023] Figure 1 This is an isometric view of a double-cylinder roller brush for building painting proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of a double-cylinder roller brush for building painting proposed in this utility model;

[0025] Figure 3 This is a cross-sectional view of the brush handle in a double-cylinder roller brush for building painting proposed in this utility model.

[0026] Figure 4 This is a schematic diagram of the brush cloth assembly in a double-cylinder roller brush for building painting proposed in this utility model;

[0027] Figure 5 This is a schematic diagram showing the unfolded brush cloth in a double-cylinder roller brush for building painting proposed in this utility model.

[0028] Legend:

[0029] 1. Brush handle; 2. Roller;

[0030] 3. Brush cloth assembly; 301. Mounting groove; 302. Positioning groove; 303. Hook and loop fastener side; 304. Brush cloth; 305. Hook and loop fastener side; 306. Positioning protrusion;

[0031] 4. Handle assembly; 401. Threaded screw; 402. Handle bar; 403. Storage groove; 404. Threaded slip ring; 405. Anti-slip texture. Detailed Implementation

[0032] 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.

[0033] One embodiment provided by this utility model:

[0034] Reference Figure 1 , Figure 2 and Figure 3 :

[0035] A double-cylinder roller brush for building painting includes a brush handle 1. A roller 2 is rotatably connected to the front end and the rear end of one side outer wall of the brush handle 1. A handle assembly 4 is provided at the rear end of the brush handle 1. The handle assembly 4 includes a threaded screw 401 fixedly connected to the rear outer wall of the brush handle 1. A handle rod 402 is sleeved at the rear end of the threaded screw 401. A threaded slip ring 404 is rotatably connected to the edge of the front outer wall of the handle rod 402.

[0036] Reference Figure 4 and Figure 5 :

[0037] The roller body of the roller 2 is provided with a brush assembly 3. The brush assembly 3 includes positioning grooves 302 opened on both sides of the roller body of the roller 2, and an installation groove 301 opened in the middle of the roller body of the roller 2. A Velcro hook surface 303 is fixedly connected to the inner bottom surface of the installation groove 301. A brush cloth 304 is sleeved on the roller body of the roller 2. A Velcro nap surface 305 is fixedly connected to the front and rear ends of the lower surface of the brush cloth 304. Positioning protrusions 306 are fixedly connected to both sides of the lower surface of the brush cloth 304.

[0038] The handle assembly 4 allows for effective adjustment of the length of the roller brush handle, thus improving ease of use. The brush cloth assembly 3 allows for effective replacement of the brush cloth 304, thereby improving the utilization of the roller 2.

[0039] Reference Figure 2 and Figure 3 :

[0040] The inner wall of the threaded slip ring 404 is threadedly connected to the body of the threaded screw 401. The handle 402 has a storage groove 403 inside. The threaded screw 401 slides inside the storage groove 403. By rotating the threaded slip ring 404, the handle 402 can be effectively moved. Thus, while adjusting the length, one end of the threaded screw 401 can also be effectively stored in the storage groove 403.

[0041] Reference Figure 2 and Figure 5 :

[0042] The hook and loop surfaces 305 and 303 work together to effectively mount the brush cloth 304 onto the outer wall of the roller 2. The positioning protrusions 306 are made of flexible silicone, and their outer walls are tightly fitted to the inner walls of the positioning grooves 302. The positioning protrusions 306 and 302 effectively fix the position of the brush cloth 304, thus preventing it from falling off during use.

[0043] Reference Figure 3 :

[0044] The outer wall of the threaded slip ring 404 is provided with anti-slip texture 405, which makes it easier to rotate the threaded slip ring 404.

[0045] Reference Figure 4 and Figure 5 :

[0046] The brush cloth 304 is composed of polyester fibers and non-woven fabric, which effectively reduces the replacement cost of the brush cloth 304.

[0047] Working principle: During use, the user rotates the threaded slip ring 404 as needed, causing the threaded slip ring 404 to move on the body of the threaded screw 401. This causes the threaded slip ring 404 to move the handle rod 402 on the body of the threaded screw 401, thereby adjusting its length. Then, the user holds the handle rod 402 to dip the brush cloth 304 on the outer wall of the roller 2 into the paint and then paints the building. After painting, the worker can separate the Velcro nap 305 and the Velcro hook 303 at both ends of the brush cloth 304, remove the brush cloth 304, and then simply clean the roller 2. For the next use, the brush cloth 304 can be directly installed on the outer wall of the roller 2.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-cylinder roller brush for architectural painting, comprising a brush handle (1), characterized in that: Rollers (2) are rotatably connected to the front and rear ends of the outer wall of one side of the brush handle (1). A handle assembly (4) is provided at the rear end of the brush handle (1). The handle assembly (4) includes a threaded screw (401) fixedly connected to the outer wall of the rear end of the brush handle (1). A handle rod (402) is sleeved on the rear end of the threaded screw (401). A threaded slip ring (404) is rotatably connected to the edge of the outer wall of the front end of the handle rod (402). The roller (2) is provided with a brush assembly (3). The brush assembly (3) includes positioning grooves (302) on both sides of the roller (2) body. The roller (2) body is provided with an installation groove (301) in the middle. The inner bottom surface of the installation groove (301) is fixedly connected with a Velcro hook surface (303). The roller (2) body is fitted with a brush cloth (304). The front and rear ends of the lower surface of the brush cloth (304) are fixedly connected with Velcro naps (305). The lower surfaces of the brush cloth (304) are fixedly connected with positioning protrusions (306) on both sides.

2. The double-cylinder roller brush for architectural painting according to claim 1, characterized in that: The inner wall of the threaded slip ring (404) is threadedly connected to the rod body of the threaded screw (401), and the handle rod (402) has a storage groove (403) inside, and the threaded screw (401) slides inside the storage groove (403).

3. The double-cylinder roller brush for architectural painting according to claim 1, characterized in that: The hook and loop side (305) of each hook and loop side (303) are all in tandem.

4. The double-cylinder roller brush for architectural painting according to claim 1, characterized in that: The positioning protrusion (306) is made of flexible silicone material, and the outer wall of the positioning protrusion (306) is in close contact with the inner wall of the positioning groove (302).

5. A double-cylinder roller brush for architectural painting according to claim 1, characterized in that: The outer wall of the threaded slip ring (404) is provided with anti-slip texture (405).

6. A double-cylinder roller brush for architectural painting according to claim 1, characterized in that: The brush cloth (304) is composed of polyester wool and non-woven fabric.