Replaceable paint brush

By designing a quick-release component for replaceable paintbrushes, the brush head and handle can be quickly installed and replaced, solving the problems of poor applicability and low efficiency caused by the fixed connection between the brush head and handle in the existing technology, and improving work efficiency and ease of operation.

CN224038677UActive Publication Date: 2026-03-27GUANGZHOU PINTECH METAL TOOLS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-25
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

The existing paint brush head is fixedly connected to the handle, resulting in poor applicability. Multiple brush heads need to be carried to adapt to different application scenarios, which increases the weight and affects work efficiency.

Method used

Design a replaceable paint brush, which uses a handle, a brush head assembly, and a quick-release assembly. The brush head and handle can be quickly installed and replaced by using the cooperation of the spring and the limiting groove. The brush head can be quickly replaced by the elastic potential energy of the connecting rod and the spring.

Benefits of technology

It improves the applicability and work efficiency of paintbrushes, reduces the carrying burden, simplifies cleaning work, and enhances the convenience and comfort of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The replaceable paint brush comprises a handle, a brush head assembly and a quick release assembly, the handle comprises an upper shell and a lower shell which can be buckled with each other, and the quick release assembly comprises a connecting rod with one end fixedly connected with a brush head body and a springback piece fixedly connected with the other end of the connecting rod. The upper end face of the upper shell is provided with a limiting groove which can abut against the movable end of the rebounding piece, the movable end of the rebounding piece reciprocates in the radial direction of the connecting rod under the action of elastic potential energy by inserting or pulling the end, fixedly connected with the rebounding piece, of the connecting rod into or out of the handle, and therefore the movable end of the rebounding piece can abut against or be separated from the side wall of the limiting groove. Therefore, the brush head assembly and the handle can be rapidly installed and replaced, and applicability and operation efficiency are further improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of paint tool design, more particularly to a replaceable paint brush. BACKGROUND

[0002] The paint brush is mainly used for brushing paint, coating and glue, etc., the brush head and handle of the paint brush are fixedly connected at present, the applicability is poor, the operator needs to replace the paint brush with different brush head sizes according to different application scenes, so when going out to work, multiple paint brushes need to be carried, which not only increases the additional load and subsequent cleaning work, but also seriously affects the work efficiency. SUMMARY

[0003] The main purpose of the utility model is to provide a replaceable paint brush with replaceable brush head, which improves applicability and work efficiency.

[0004] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0005] A replaceable paint brush, including handle, brush head assembly and quick release assembly, the handle includes upper shell and lower shell that can be mutually buckled, the brush head assembly includes brush head body and bristle shell that can be inserted with one end of the brush head body, the quick release assembly includes connecting rod fixedly connected with the brush head body at one end and rebounding piece fixedly connected with the other end of the connecting rod and can reciprocate along the radial direction of the connecting rod, the rebounding piece is arranged from the end of the connecting rod away from the brush head body to the other end, and the upper end face of the upper shell is provided with a limiting groove that can abut against the movable end of the rebounding piece.

[0006] According to the first aspect embodiment of the utility model, the handle further includes a hanging hole arranged at one end away from the brush head assembly and a guide slot arranged in the interior of the upper shell for facilitating the insertion of the connecting rod and the rebounding piece.

[0007] According to the first aspect embodiment of the utility model, the outlet of the guide slot is provided with a limiting ring for limiting the opening angle of the movable end of the rebounding piece.

[0008] According to the first aspect embodiment of the utility model, the brush head assembly further includes bristles arranged in the bristle shell at one end, and the brush head body is spaced apart from the quick release assembly at one end and is provided with a plurality of installation slots for the insertion of the bristles.

[0009] According to the first aspect embodiment of the utility model, the quick release assembly further includes a pressing piece that can be clamped with the limiting groove, and the pressing piece is a rubber material member.

[0010] According to the first aspect of the utility model, the upper end surface of the pressing piece is provided with a plurality of anti-skid protrusions, and the lower end surface of the pressing piece is provided with an arc surface which can be connected with the movable end of the rebounding piece.

[0011] According to the first aspect of the utility model, the arc surface is arranged obliquely.

[0012] According to the first aspect of the utility model, the inclination angle of the arc surface is greater than or equal to the maximum swing angle of the movable end of the rebounding piece.

[0013] According to the first aspect of the utility model, a plurality of buckles are arranged at the length intervals of the upper shell, and the lower shell is provided with a plurality of clamping grooves which can be inserted by the buckles.

[0014] According to the first aspect of the utility model, the length of the rebounding piece is less than the length of the connecting rod, and the included angle between the rebounding piece and the connecting rod is an acute angle.

[0015] The above technical solution of the utility model has at least one of the following advantages or beneficial effects:

[0016] The utility model can insert or pull out the handle by the end of the connecting rod and the rebounding piece, the movable end of the rebounding piece will reciprocate along the radial direction of the connecting rod under the action of the elastic potential energy, so as to realize the abutment and separation with the side wall of the limiting groove, and then realize the quick installation and replacement of the brush head assembly and the handle, thus further improving the applicability and operation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described below in combination with the drawings and examples.

[0018] ATTACHMENT Figure 1 It is the overall structure diagram of an embodiment of the utility model;

[0019] ATTACHMENT Figure 2 It is the explosion view of an embodiment of the utility model;

[0020] ATTACHMENT Figure 3 It is the upper shell bottom view of an embodiment of the utility model;

[0021] ATTACHMENT Figure 4 It is the pressing piece bottom view of an embodiment of the utility model;

[0022] ATTACHMENT Figure 5 It is the structure diagram of the brush head assembly of an embodiment of the utility model;

[0023] ATTACHMENT Figure 6 It is the structure diagram of the brush head assembly of an embodiment of the utility model;

[0024] ATTACHMENTFigure 7 FIG. 1 is a structure diagram of a brush head assembly according to an embodiment of the present application;

[0025] FIG. 1 is a structure diagram of a brush head assembly according to an embodiment of the present application; Figure 8 FIG. 1 is a structure diagram of a brush head assembly according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described in detail below with reference to the drawings, examples of which are shown in the drawings, wherein the same or similar notations are used to denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0027] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0028] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0029] In addition, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features.

[0030] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, it can be fixed connection or movable connection, or detachable connection or non-detachable connection, or integrally connected; it can be mechanical connection, or electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements, indirect communication or the interaction relationship between two elements.

[0031] The following disclosure provides many different embodiments or examples for implementing different aspects of the present application.

[0032] FIG. 1 is a structure diagram of a brush head assembly according to an embodiment of the present application. Figure 1To the attached Figure 8 As shown in the figure, a replaceable paint brush comprises a handle 1, a brush head assembly 2 which can be inserted with the handle 1, and a quick release assembly 3.

[0033] In an embodiment of the present application, the handle 1 comprises an upper shell 11 and a lower shell 12 which can be buckled with each other, a hanging hole 13 which is arranged at the end away from the brush head assembly 2, and a guide slot 14 which is arranged inside the upper shell 11 and through which the connecting rod 31 and the resilient member 32 are inserted, so that one end of the connecting rod 31 and the resilient member 32 which are fixedly connected can be inserted into the guide slot 14, and the assembly of the brush head assembly 2 and the handle 1 is convenient and fast.

[0034] In an embodiment of the present application, the outlet of the guide slot 14 is provided with a limiting ring 15 which is used to limit the opening angle of the movable end of the resilient member 32, so that when the brush head assembly 2 and the handle 1 are assembled, one end of the connecting rod 31 and the resilient member 32 which are fixedly connected can be inserted into the guide slot 14, and after being inserted to a preset depth, the inner diameter of the limiting ring 15 is controlled to control the included angle between the connecting rod 31 and the resilient member 32, and the opening angle of the movable end of the resilient member 32 is limited.

[0035] In an embodiment of the present application, the brush head assembly 2 comprises a brush head body 21, a bristle shell 22 which can be inserted with one end of the brush head body 21, and bristles which are arranged in the bristle shell 22, a plurality of installation slots 23 which can be inserted with the bristles are arranged at the end of the brush head body 21 away from the quick release assembly 3, the bristle shell 22 is arranged outside the one end of the brush head body 21, and the bristles are arranged in the gap between the brush head body 21 and the bristle shell 22.

[0036] In an embodiment of the present application, the shape of the brush head body 21 in the brush head assembly 2 and the bristle shell 22 which is inserted with one end of the brush head body 21 can be set as a square, a rectangle, a cylinder and a triangle according to the use scene and user requirements, and the specific shape can be referred to the attached Figure 5 To the attached Figure 8 .

[0037] In an embodiment of the present application, the quick release assembly 3 comprises a connecting rod 31 which is fixedly connected with one end of the brush head body 21, a resilient member 32 which is fixedly connected with the other end of the connecting rod 31, and a pressing member 33 which is made of rubber material and can be clamped with the limiting slot 111, the resilient member 32 and the connecting rod 31 are integrally formed, one end of the resilient member 32 is connected with the connecting rod 31, and the included angle between the other end of the resilient member 32 and the connecting rod 31 gradually increases, so that the resilient member 32 can reciprocate along the radial direction of the connecting rod 31.

[0038] In an embodiment of the present application, a plurality of anti-skid protrusions 331 are arranged at the upper end surface of the pressing member 33 in a spaced manner, the anti-skid protrusions 331 are arranged along the width direction of the handle 1, and the user can conveniently exert force when operating.

[0039] In one embodiment of the utility model, the lower end face of the pressing piece 33 is provided with an arc surface 332 which can be connected with the movable end of the resilient piece 32, and the arc surface 332 is arranged obliquely, so that when the user presses the pressing piece 33, the arc surface 332 first contacts the movable end of the resilient piece 32 which is raised.

[0040] In one embodiment of the utility model, the inclination angle of the arc surface 332 is greater than or equal to the maximum swing angle of the movable end of the resilient piece 32, so that when the user presses the pressing piece 33 to replace the brush head assembly 2, there is no foreign body sensation, and the operation is more comfortable.

[0041] In one embodiment of the utility model, the resilient piece 32 is arranged from one end of the connecting rod 31 away from the brush head body 21 to the other end, the length of the resilient piece 32 is less than the length of the connecting rod 31, the angle between the resilient piece 32 and the connecting rod 31 is an acute angle, and a limiting groove 111 which can abut against the movable end of the resilient piece 32 is arranged on the upper end face of the upper shell 11, so that the assembly of the brush head assembly 2 and the handle 1 can be quickly completed by means of the elastic potential energy of the resilient piece 32 and the limiting groove 111.

[0042] In one embodiment of the utility model, when the end of the connecting rod 31 and the resilient piece 32 fixedly connected is inserted into the guide groove 14, the movable end of the resilient piece 32 will rebound under the action of the elastic potential energy, so as to abut against the side wall of the limiting groove 111, and the assembly of the brush head assembly 2 and the handle 1 is completed; when the pressing piece 33 is pressed, the resilient piece 32 is compressed under the pushing of the arc surface 332, so that the movable end of the resilient piece 32 is separated from the side wall of the limiting groove 111, and the unlocking of the brush head assembly 2 and the handle 1 is completed.

[0043] In one embodiment of the utility model, a plurality of buckles 4 are arranged at intervals along the side length of the upper shell 11, and a plurality of clamping grooves 5 which can be inserted by the corresponding buckles 4 are arranged on the lower shell 12, so that when the handle 1 is assembled, the upper shell 11 and the lower shell 12 can be buckled first and then connected by screws.

[0044] The paint brush can realize the quick installation and replacement of the brush head assembly 2 and the handle 1 by inserting or pulling out the end of the connecting rod 31 and the resilient piece 32 fixedly connected into the handle 1, so that the movable end of the resilient piece 32 reciprocates along the radial direction of the connecting rod 31 under the action of the elastic potential energy, thereby realizing the abutment and separation with the side wall of the limiting groove 111, and the applicability and work efficiency are further improved.

[0045] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A replaceable paint brush, characterized in that, The utility model relates to a toothbrush, including: Handle (1), handle (1) includes the upper shell (11) and lower shell (12) of mutual interlockable; Brush head assembly (2) can be inserted with handle (1), and brush head assembly (2) includes brush head body (21) and brush hair shell (22) can be inserted with one end of brush head body (21); Quick release assembly (3), quick release assembly (3) includes the connecting rod (31) of one end fixed connection with brush head body (21) and the resilience piece (32) of the other end fixed connection with connecting rod (31) can along connecting rod (31) radial reciprocating motion, resilience piece (32) is from the direction of one end of connecting rod (31) away from brush head body (21) to the other end; The upper shell (11) upper end face is equipped with the limiting groove (111) of the movable end abutment with resilience piece (32).

2. The replaceable paint brush of claim 1, wherein: The handle (1) still includes the hanging hole (13) of one end away from brush head assembly (2) is equipped with and the guide slot (14) of being convenient for the connecting rod (31) and resilience piece (32) insertion is arranged in the inside of upper shell (11).

3. The replaceable paint brush of claim 2, wherein: The outlet of guide slot (14) is equipped with the limiting ring (15) for limiting the opening angle of movable end of resilience piece (32).

4. The replaceable paint brush of claim 1, wherein: The brush head assembly (2) still includes the bristle of one end setting in brush hair shell (22), and the brush head body (21) is away from quick release assembly (3) one end interval and is equipped with multiple installation slot (23) for the bristle insertion of brush head body (21).

5. The replaceable paint brush of claim 1, wherein: Quick release assembly (3) still includes the presser (33) of the limiting slot (111) of being clamped, and presser (33) is the rubber material member.

6. The replaceable paint brush of claim 5, wherein: The upper end face of presser (33) is equipped with multiple anti -skid protrusions (331), and the lower end face of presser (33) is equipped with the arc surface (332) of the movable end of resilience piece (32) with interface.

7. The replaceable paint brush of claim 6, wherein: The arc surface (332) is inclinedly arranged.

8. The replaceable paint brush of claim 7, wherein: The inclination angle of arc surface (332) is greater than or equal to the maximum swing angle of movable end of resilience piece (32).

9. The replaceable paint brush of claim 1, wherein: Multiple buckles (4) are arranged along the side length of upper shell (11), and multiple clamping grooves (5) are arranged on lower shell (12) and can be inserted into buckles (4).

10. The replaceable paint brush of claim 1, wherein: The length of resilience piece (32) is less than the length of connecting rod (31), and the included angle between resilience piece (32) and connecting rod (31) is an acute angle.