Rectangular paint brush head shell and paint brush thereof

By designing a combined structure of rectangular and circular holes on the rectangular paint brush head housing, the problem of uneven bristle separation is solved, and the uniformity and use effect of the coating are improved.

CN222603999UActive Publication Date: 2025-03-14ZHENJIANG BAISHENG BRUSHES MAKING CO LTD
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Patent Information

Application Number
CN202420955120.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-06
Publication Date
2025-03-14
Estimated Expiration
2034-05-06

AI Technical Summary

Technical Problem

The square hole design of the rectangular paint brush head results in uneven separation of bristles, which is prone to bubbles in the coating or uneven coating, affecting the use effect.

Method used

A rectangular paint brush head shell is designed, adopting a rectangular shell and side plate structure. The surface of the side plate is equipped with multiple rectangular holes and middle circular holes along the surrounding edges. The bristles are inserted through these holes, and the side plates and the bottom plates are arc-shaped to evenly distribute the bristles.

Benefits of technology

Replacing the rectangular hole in the middle by round holes, the uniform distribution of bristles is improved, bubbles or uneven phenomena in the coating are reduced, and the effectiveness of the rectangular paint brush head is greatly improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rectangular paint brush head shell and a paint brush thereof, relates to the field of paint brushes, and adopts the technical scheme that the rectangular paint brush head shell comprises a rectangular shell, an upper opening and a lower opening are formed in the rectangular shell, a bottom plate is arranged in the rectangular shell, and a side plate connected with the bottom plate is fixedly connected to the upper opening of the rectangular shell; a plurality of rectangular holes defined by the inner side wall of the rectangular shell are formed in the surface of the side plate along the peripheral edge, a plurality of round holes are formed in the area, defined by the rectangular holes, of the surface of the side plate, and bristles are inserted into the rectangular holes and the round holes and extend out of the rectangular shell. The coating brush has the advantages that the peripheral edge of the brush shell is still separated through the rectangular holes, the smoothness of the edge of the brush head is still kept, the use effect that the coating range is convenient to control is not affected, the middle rectangular holes are replaced by the round holes, bristles in the middle are more evenly distributed by the side plates, the bubble or non-uniformity phenomenon in a coating is reduced, and the coating quality is improved. And the use effect of the rectangular paint brush head is greatly improved.
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Description

Technical Field

[0001] The utility model relates to the field of paint brushes, and more specifically, to a rectangular paint brush head shell and a paint brush thereof. Background Art

[0002] A paintbrush is a tool used to apply paint or coatings, usually consisting of bristles and a handle. The bristles are usually made of animal hair, synthetic fibers or other materials, and have the function of absorbing paint and applying it evenly. The design of the brush handle is usually in line with the habit of human hand holding, and can provide a comfortable grip. The size, shape and material of the paintbrush will vary depending on the type of paint and the surface of the coating. In interior decoration, paint brushes with rectangular shells are often used, which are equipped with rectangular holes (also called square holes). The square head and square hole design can make the bristles on the edge of the brush head smoother, which can well control the coating range and is suitable for processing in right-angle areas (such as door sills and corners).

[0003] However, the square holes that separate the bristles are less evenly distributed than the round holes (the shape of the round holes allows the bristles to be more evenly filled therein), so bubbles or uneven coatings are more likely to occur in the coating when painting, thus affecting the use of the rectangular paint brush head.

[0004] Therefore, in order to solve the above technical problems, the present application proposes a rectangular paint brush head shell and a paint brush thereof. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a rectangular paint brush head housing and a paint brush thereof.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rectangular paint brush head shell, comprising a rectangular shell, which is opened at the top and bottom and has a bottom plate inside. A side plate connected to the bottom plate is fixedly connected to the upper opening of the rectangular shell. A plurality of rectangular holes are opened on the surface of the side plate along the edges thereof, which are surrounded by the inner wall of the rectangular shell. A plurality of circular holes are opened on the surface of the side plate in the area surrounded by the rectangular holes. Bristles are inserted into the rectangular holes and the circular holes, and the bristles extend outside the rectangular shell.

[0007] Preferably, the bottom plate and the side plates are both in an arc shape with the middle portion inclined toward both sides, so that the length of the bristles extending out of the middle hole is longer than the length of the bristles extending out of the two side holes.

[0008] The utility model also provides a paint brush, which comprises a brush handle and the brush head shell mentioned above.

[0009] Furthermore, a slot is provided on the inner side wall of the rectangular shell, and an insert block is provided on the brush handle which can be inserted from the lower opening of the rectangular shell. Elastic buckles corresponding to the slot are provided around the insert block, so that the brush handle and the brush head shell are easy to disassemble and assemble.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The edges of the brush shell of the utility model are still separated by rectangular holes, and the edges of the brush head are still kept flat, which does not affect its use effect of facilitating the control of the coating range. The circular holes replace the rectangular holes in the middle, so that the bristles in the middle are more evenly distributed by the side panels, reducing bubbles or unevenness in the coating, greatly improving the use effect of the rectangular paint brush head, thereby solving the problem that the square holes in the background technology separate the bristles less evenly than the circular holes, so that bubbles or uneven coating are easily generated in the coating when painting, thereby affecting the use effect of the rectangular paint brush head.

[0012] 2. The brush head housing and the brush handle of the utility model are easy to disassemble, and the side panels are also easy to disassemble and assemble, so that the bristles on the side panels and the inside of the rectangular housing can be easily cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A schematic diagram of the structure from another angle;

[0016] Figure 3 It is a schematic diagram of the internal structure of the shell in the utility model.

[0017] In the figure: 1, rectangular shell; 2, bottom plate; 3, side plate; 4, rectangular hole; 5, round hole; 6, card slot. DETAILED DESCRIPTION

[0018] like Figure 1-3As shown, the utility model provides a rectangular paint brush head shell, including a rectangular shell 1, which is opened at the top and bottom and has a bottom plate 2 inside. A side plate 3 connected to the bottom plate 2 is fixedly connected to the upper opening of the rectangular shell 1, and a plurality of rectangular holes 4 are opened on the surface of the side plate 3 along the edges thereof, which are surrounded by the inner wall of the rectangular shell 1. A plurality of circular holes 5 are opened on the surface of the side plate 3 in the area surrounded by the rectangular holes 4, and bristles are inserted into both the rectangular holes 4 and the circular holes 5, and the bristles extend outside the rectangular shell 1.

[0019] The edges of the brush shell are still separated by rectangular holes 4, and the edges of the brush head are still kept flat, which does not affect the use effect of facilitating the control of the coating range. The circular hole 5 replaces the middle rectangular hole 4, so that the bristles in the middle are more evenly distributed by the side plate 3, reducing bubbles or unevenness in the coating, and greatly improving the use effect of the rectangular paint brush head.

[0020] Furthermore, the side panels 3 and the bottom panel 2 are both arc-shaped with the middle portion inclined toward both sides, so that the length of the bristles extending out of the middle hole is longer than the length of the bristles extending out of the holes on both sides. Since the paint brush composed of a rectangular paint brush head is generally slightly inclined horizontally when in use, the length of the bristles extending out of the middle hole is longer than the length of the bristles extending out of the holes on both sides, so that the length of the middle bristles is longer, the mobility is higher, and the contact surface is larger, thereby cooperating well with the brushing of the bristles on both sides, making it easier for the staff to perform the painting operation.

[0021] The utility model also provides a paint brush, comprising a brush handle and a brush head shell as described above. The special design of the brush head shell improves the overall use effect of the paint brush.

[0022] A card slot 6 is provided on the inner side wall of the shell, and an insert block is provided on the brush handle which can be inserted from the opening below the rectangular shell 1. Elastic buckles corresponding to the card slot 6 are provided around the insert block. When the insert block is inserted into the rectangular shell 1, the elastic buckles on the insert block are just inserted into the card slot 6, thereby realizing the installation between the brush handle and the brush head shell. Pulling the two together forcefully causes the elastic buckles to deform, and pulling the insert block out of the rectangular shell 1 can realize the disassembly of the two. The disassembly and assembly are very simple.

[0023] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A rectangular paint brush head housing, comprising a rectangular housing (1) with upper and lower openings and a bottom plate (2) disposed inside, characterized in that: A side plate (3) connected to the bottom plate (2) is fixedly connected to the upper opening of the rectangular shell (1); a plurality of rectangular holes (4) are provided on the surface of the side plate (3) along the four edges thereof, and the plurality of circular holes (5) are formed together with the inner wall of the rectangular shell (1); a plurality of circular holes (5) are provided on the surface of the side plate (3) in the area surrounded by the rectangular holes (4); bristles are inserted into both the rectangular holes (4) and the circular holes (5), and the bristles extend outside the rectangular shell (1).

2. A rectangular paint brush head housing according to claim 1, characterized in that: The bottom plate (2) and the side plate (3) are both in an arc shape with the middle portion inclined toward both sides, so that the length of the bristles extending out of the middle hole is greater than the length of the bristles extending out of the two side holes.

3. A paint brush, characterized in that: The invention comprises a brush handle and a brush head housing according to any one of claims 1 to 2.

4. A paint brush according to claim 3, characterized in that: A slot (6) is provided on the inner side wall of the rectangular shell (1), and an insert block which can be inserted from the lower opening of the rectangular shell (1) is provided on the brush handle, and elastic buckles corresponding to the slot (6) are provided around the insert block.