A touch-up brush head structure

By designing a brush head structure that connects the brush bottle to the twist cap, the problem of paint and adhesive dripping during the dipping process is solved, achieving uniform dispensing and clogging removal. It is also compatible with different containers, improving ease of use.

CN224386991UActive Publication Date: 2026-06-23ANHUI BENMING NEW BUILDING MATERIALS GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI BENMING NEW BUILDING MATERIALS GRP CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In existing technologies, paint and colloids are prone to dripping during dipping or moving, making them difficult to clean, resulting in waste and time-consuming and laborious use.

Method used

A paint touch-up brush head structure was designed, including a brush bottle, a twist cap, and a brush head. The twist cap is connected to the brush bottle by a thread to form an integrated device. The device uses a rectangular groove, an extension block, and a discharge port to achieve uniform discharge, and uses an elastic device and a column to clear blockages.

Benefits of technology

It achieves uniform discharge of paint and colloid, avoids leakage and blockage, is compatible with different containers, and improves efficiency and convenience.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224386991U_ABST
    Figure CN224386991U_ABST
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Abstract

The utility model relates to the technical field of brush head, and disclose a kind of paint filling brush head structure, the port of brush bottle A is threadedly installed with twist cap, the inside of twist cap is clamped with brush head, and setting brush bottle A, twist cap, brush head and so on Structure realizes uniform discharge, the direction of brush head is towards below, then press the bottle body of brush bottle A, make the paint and colloid in the inside of brush bottle A be extruded, paint and colloid overflow into the inside of rectangular groove by the spout of brush bottle A, rectangular groove is communicated with the inside of extension block, then paint and colloid are sprayed from discharge port, until flow into the inside of communicating port, when paint and colloid contact by the inner wall of communicating port and brush block, paint and colloid are immersed in the inside of brush block, slowly immerse between brush, so that brush is wet, at this time, brush is aimed at the place needing repair and is evenly brushed, and it plays the effect of uniform discharge.
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Description

Technical Field

[0001] This utility model relates to the field of brush head technology, and in particular to a paint touch-up brush head structure. Background Technology

[0002] Everyday tools such as door panels, window frames, shelves, tabletops, or legs are prone to paint chipping due to bumps or daily wear and tear, or they may be painted with different colors to enhance their appearance. In the actual painting process, a brush is often used to apply a certain amount of paint or adhesive.

[0003] In existing technologies, since the paint and adhesive are liquids, they are easy to drip during the process of dipping or moving the brush, which is difficult to clean and will cause waste of paint and adhesive. Users need to hold the paint bucket or other container of paint with one hand and hold the brush with the other hand to do the painting work. However, it is extremely time-consuming and laborious when the user moves around. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a paint touch-up brush head structure that offers advantages such as continuous and uniform paint output, anti-clogging, and compatibility with different containers, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a paint touch-up brush head structure, including a brush bottle A, a twist cap is threadedly installed at the port of the brush bottle A, the inner ring of the twist cap has a threaded groove, the outer ring of the end of the brush bottle A has a thread, the bottom inner ring of the twist cap and the outer ring of the end of the brush bottle A are threaded to fit each other, the twist cap includes a T-shaped block, a ring, and an extension block, and a brush head is snapped into the inside of the twist cap.

[0006] With the above structural design, by setting the connection between the twist cap and brush bottle A, brush bottle A, as a container for holding paint and colloids, becomes an integrated device after being connected with the twist cap. Furthermore, through the connection and cooperation between brush bottle A, twist cap, brush head, and other structures, it can achieve the effect of uniform brushing and uniform material dispensing during use.

[0007] Preferably, the top of the twist cap is provided with a T-shaped block, the two long sides of the T-shaped block are concave inward, the inner surface of the long side at the end of the T-shaped block is symmetrically provided with locking blocks, the inside of the twist cap is provided with a ring, the outer diameter of the ring is adapted to the port diameter of the brush bottle A, and a rectangular groove is opened inside the ring.

[0008] With the above structural design, after the brush bottle A is squeezed, the paint and colloid inside it are sprayed upwards and moved from the rectangular groove into the extension block. This structure can prevent the paint and colloid from leaking and achieve a smooth discharge.

[0009] Preferably, an extension block is fixedly installed inside the T-shaped block at the top of the twist cover. The extension block has a linear array of discharge ports inside, the cross-section of which is rectangular. The extension block is hollowed out above the discharge ports, and the extension block is connected to the rectangular groove through the discharge ports.

[0010] With the above structural design, the paint and colloid are squeezed inside the extension block, allowing them to be evenly discharged through the outlet into the hollow part inside the extension block, and then slowly seep into the brush head from inside the extension block.

[0011] Preferably, the brush head includes a housing and a brush block. The brush block is fixedly fitted inside the housing. The brush block has a communication opening inside. The top surface of the housing is flush with the bottom surface of the card block. The communication opening is fitted around the outer ring of the extension block. The top of the brush block is evenly provided with bristles.

[0012] With the above structural setup, when the paint and colloid are sprayed from inside the extension block into the connecting port, the paint and colloid come into contact with the brush block and brush bristles through the connecting port, slowly wetting the brush bristles, so that there is paint and colloid between the brush bristle surface and the brush bristles.

[0013] Preferably, the inside of the twist cover is provided with elastic devices on both sides of the extension block. The elastic devices include a bottom plate and a top plate. The bottom plate is fixedly installed between the inner wall of the T-shaped block and the outer wall of the extension block. The top plate is provided above the bottom plate. A spring is fixedly connected between the bottom plate and the top plate. A limit strip is fixedly connected to one side of the top of the top plate. The limit strip is L-shaped in general.

[0014] With the above structural design, the brush head moves downward quickly, compressing the spring as it moves downward, which in turn moves the top plate and the limiting strip downward. When the spring is compressed, the entire brush head moves into the T-shaped block.

[0015] Preferably, a horizontal bar is fixedly installed inside the brush head on the top wall of the connecting port. The length of the horizontal bar is equal to the length of the connecting port, and the width of the horizontal bar is narrower than the width of the connecting port. The bottom of the horizontal bar is provided with columns in a linear array. The ends of the columns are pointed. The shape and size of the columns are adapted to the shape and size of the discharge port. When not pressed, the ends of the columns 35 are located above the discharge port 26.

[0016] With the above structural design, as the brush head moves downward, the sleeve and brush block apply pressure evenly to the top plate, compressing the spring and allowing the column to fully extend into the discharge port, clearing away the paint and colloids blocking the discharge port.

[0017] Preferably, the brush bottle B is installed on the internal thread of the twist cap, the outer ring of the end of the brush bottle B is threaded, the inner ring of the twist cap and the outer ring of the end of the brush bottle B are threaded to match, and the twist cap is also suitable for other bottle bodies.

[0018] With the above-described structure and the inner threaded groove of the screw cap, this device can be installed on any container bottle. The screw cap and the brush bottle B allow it to be used with containers of different shapes.

[0019] This utility model has the following advantages:

[0020] 1. This touch-up paint brush head structure achieves uniform paint dispensing through the design of brush bottle A, twist cap, and brush head. With the brush head facing downwards, pressing down on brush bottle A squeezes the paint and adhesive inside, causing them to overflow through the bottle opening into a rectangular groove. This groove connects to the extension block. The paint and adhesive then spray from the outlet until they flow into the connecting port. When the paint and adhesive come into contact with the brush block through the inner wall of the connecting port, they penetrate the brush block and slowly seep into the bristles, wetting them. At this point, the brush can be aligned with the area needing repair for even application, resulting in uniform paint dispensing.

[0021] 2. This touch-up brush head structure achieves blockage removal through the setting of a twist cap, elastic device, and column. When the brush head is pressed down quickly twice, the sleeve and brush block apply pressure evenly to the top plate during the downward movement of the brush head, which compresses the spring and causes the column to fully extend into the discharge port, pushing out the paint and colloid blocking the discharge port. This process is repeated twice to completely clear the blockage and achieve the effect of removing blockage.

[0022] 2. This touch-up paint brush head structure adapts to different containers by setting a twist cap and brush bottle B. The inner ring threaded groove of the twist cap allows the device to be installed on any compatible container. The size of the container opening must match the size of the twist cap, and the outer ring thread of the container opening must match the inner ring threaded groove of the twist cap. The twist cap and brush bottle B allow for the replacement of containers of different shapes. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the twist-top cover according to Embodiment 1 of this utility model;

[0025] Figure 3 This is a schematic diagram of the bottom of the twist-top structure according to Embodiment 1 of this utility model;

[0026] Figure 4 This is a schematic diagram of the bottle brush A structure according to Embodiment 1 of this utility model;

[0027] Figure 5 This is a schematic diagram of the twist cap structure according to Embodiment 1 of this utility model;

[0028] Figure 6 This is a schematic diagram of the brush head structure according to Embodiment 1 of this utility model;

[0029] Figure 7 This is a schematic diagram of the internal structure of the twist cap in Embodiment 2 of this utility model;

[0030] Figure 8 This is an exploded view of the elastic device structure in Embodiment 2 of this utility model;

[0031] Figure 9 This is a schematic diagram of the overall structure of Embodiment 3 of this utility model.

[0032] In the diagram: 1. Brush bottle A; 2. Twist cap; 21. T-block; 22. Locking block; 23. Ring; 24. Rectangular groove; 25. Extension block; 26. Discharge port; 27. Elastic device; 271. Base plate; 272. Top plate; 273. Spring; 274. Limiting strip; 3. Brush head; 31. Brush block; 32. Connecting port; 33. Brush bristles; 34. Horizontal bar; 35. Column; 4. Brush bottle B. Detailed Implementation

[0033] 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. Example

[0034] Please see Figures 1-6 A paint touch-up brush head structure includes a brush bottle A1, a screw cap 2 threadedly installed at the port of the brush bottle A1, a threaded groove on the inner ring of the screw cap 2, a threaded outer ring at the end of the brush bottle A1, the threads of the bottom inner ring of the screw cap 2 and the end outer ring of the brush bottle A1 are adapted to each other, and a brush head 3 is snapped into the inside of the screw cap 2.

[0035] In practical applications, this device connects the cap 2 to the brush bottle A1, making the brush bottle A1 a container for paint and colloids. When connected to the cap 2, it becomes an integrated device. During use, the brush head 3 is oriented downwards, and the brush bottle A1 is pressed down, causing the paint and colloids inside to be squeezed. The colloids flow through the rectangular groove 24 into the extension block 25 and are ejected from the outlet 26 until they flow into the connecting port 32. When the paint and colloids come into contact with the brush block 31 through the inner wall of the connecting port 32, they penetrate the brush block 31 and slowly seep into the bristles 33, wetting them. The bristles 33 are then aligned with the area to be repaired for even brushing, achieving both uniform brushing and dispensing.

[0036] Please see Figures 1-6 The twist cap 2 includes a T-shaped block 21, a ring 23, and an extension block 25. The top of the twist cap 2 is provided with a T-shaped block 21, and the two long sides of the T-shaped block 21 are recessed inward. The inner surface of the long side at the end of the T-shaped block 21 is symmetrically provided with a locking block 22. The inside of the twist cap 2 is provided with a ring 23. The outer diameter of the ring 23 is adapted to the port diameter of the brush bottle A1. A rectangular groove 24 is opened inside the ring 23.

[0037] After the screw cap 2 is threadedly connected to the brush bottle A1, the outer wall of the ring 23 is just stuck at the mouth of the brush bottle A1, preventing the paint and colloid inside the brush bottle A1 from leaking out. After the brush bottle A1 is squeezed, the paint and colloid inside it are sprayed upward and moved from the rectangular groove 24 into the extension block 25. This structure has the effect of preventing the paint and colloid from leaking and ensuring smooth discharge.

[0038] Please see Figures 1-6 The top of the twist cover 2 is fixedly installed inside the T-shaped block 21 with an extension block 25. The extension block 25 has a linear array of discharge ports 26 inside. The cross-section of the discharge port 26 is rectangular. The interior of the extension block 25 above the discharge port 26 is hollow. The interior of the extension block 25 is connected to the rectangular groove 24 through the discharge port 26.

[0039] When the paint and colloid move through the rectangular groove 24 into the extension block 25, the paint and colloid are squeezed inside the extension block 25 and discharged evenly through the discharge port 26 into the hollow part inside the extension block 25, and can be slowly immersed into the brush head 3 from inside the extension block 25.

[0040] Please see Figures 1-6 The brush head 3 includes a housing and a brush block 31. The brush block 31 is fixedly fitted inside the housing. The brush block 31 has a connecting port 32 inside. The top surface of the housing is flush with the bottom surface of the locking block 22. The connecting port 32 is fitted around the outer ring of the extension block 25. The top of the brush block 31 is evenly provided with bristles.

[0041] When the brush head 3 is installed inside the twist cover 2, the brush head 3 is inserted into the T-shaped block 21, so that the locking block 22 is located on the upper end face of the casing, so that the locking block 22 has a limiting effect on the position of the brush head 3. When the paint and adhesive are sprayed from the inside of the extension block 25 into the inside of the connecting port 32, the paint and adhesive come into contact with the brush block 31 and the bristles 33 through the connecting port 32, slowly wetting the bristles 33, so that there is paint and adhesive between the surface of the bristles 33 and the brush head 33. At this time, the brushing operation can be performed.

[0042] Working principle: In use, fill the brush bottle A1 with paint and colloid, then connect the brush bottle A1 to the twist cap 2. Next, moisten the brush bristles 33 initially. With the brush head 3 facing downwards, press down on the body of the brush bottle A1, squeezing out the paint and colloid inside. The paint and colloid overflow through the bottle opening into the rectangular groove 24, which is connected to the extension block 25. The paint and colloid are then sprayed out from the outlet 26 until they flow into the connecting port 32. When the paint and colloid come into contact with the brush block 31 through the inner wall of the connecting port 32, they penetrate into the brush block 31 and slowly seep into the bristles 33, wetting them. Then, align the bristles 33 with the area to be repaired and brush evenly. The rectangular groove 24, outlet 26, and connecting port 32 ensure even paint distribution. Example

[0043] Please see Figures 7-8 The inside of the twist cover 2 is provided with elastic devices 27 on both sides of the extension block 25. The elastic devices 27 include a bottom plate 271 and a top plate 272. The bottom plate 271 is fixedly installed between the inner wall of the T-shaped block 21 and the outer wall of the extension block 25. The top plate 272 is provided above the bottom plate 271. A spring 273 is fixedly connected between the bottom plate 271 and the top plate 272. A limit strip 274 is fixedly connected to one side of the top of the top plate 272. The limit strip 274 is L-shaped in general.

[0044] By setting the elastic device 27, after the brush head 3 is installed, its bottom is pushed upward by the spring 273, so that the position of the sleeve and the brush block 31 is between the top plate 272 and the locking block 22. When it is necessary to open the discharge port 26 for material return, the position of the brush head 3 is quickly moved downward, so that the brush head 3 compresses the spring 273 when it moves downward, and at the same time, it drives the top plate 272 and the limiting strip 274 to move downward. The column 35 moves together with the brush head 3. When the spring 273 is compressed, the column 35 enters the discharge port 26, so that the paint and glue blocking the discharge port 26 are opened. This is repeated quickly twice, so that the column 35 can completely open the paint and glue blocking the discharge port 26 during the up and down movement, so as to avoid the paint and glue blocking the discharge port 26 and making it impossible to paint evenly.

[0045] Please see Figures 7-8Inside the brush head 3, a horizontal bar 34 is fixedly installed on the top wall of the connecting port 32. The length of the horizontal bar 34 is equal to the length of the connecting port 32, and the width of the horizontal bar 34 is narrower than the width of the connecting port 32. The bottom of the horizontal bar 34 is provided with columns 35 in a linear array. The ends of the columns 35 are pointed. The shape and size of the columns 35 are adapted to the shape and size of the discharge port 26. When not pressed, the ends of the columns 35 are located above the discharge port 26. When brushing normally, the position of the brush head 3 is pushed upward by the top plate 272, and there is a certain gap between the ends of the columns 35 and the discharge port 26. At this time, when the brush bottle A1 paint and colloid are pressed, they can enter the interior of the connecting port 32 through the gap between the discharge port 26 and the columns 35, and wet the brush bristles 33.

[0046] When in use, the brush head 3 rests on the surface of the top plate 272, while the column 35 extends into the extension block 25 and is located above the discharge port 26. When the device has not been used for a long time, the discharge port 26 may become clogged due to the lack of flow of paint and colloid. In this case, the brush head 3 is pressed down quickly twice. During the downward movement of the brush head 3, the sleeve and brush block 31 apply pressure evenly to the top plate 272, which compresses the spring 273, thereby allowing the column 35 to fully extend into the discharge port 26 and clear the paint and colloid clogged inside the discharge port 26. This process is repeated twice to completely clear the blockage. If the discharge is still uneven, the brush head can be pressed down again to clear the blockage, depending on the actual situation.

[0047] Please see Figures 7-8 The bottom of the brush head 3 is located at the top of the top plate 272, and the outer wall of the limiting strip 274 is in contact with the inner wall of the connecting port 32 to prevent leakage of paint and colloid during brushing. The end of the column 35 is located above the discharge port 26.

[0048] Working Principle: During use, this device may be left unused for a short period or there may be unused paint or colloids stored. In this case, since the paint or colloids are not stored in a sealed container, they will slowly transform into solids and condense after prolonged contact with air. At this time, the paint or colloids will block the inside of the discharge port 26, preventing them from passing through. When the brush head 3 is pressed down, the shell and brush block 31 are subjected to force and squeeze the top plate 272, compressing the spring 273. Subsequently, the column 35 moves down into the discharge port 26, clearing the blockage of paint or colloids inside the discharge port 26. Repeat this process quickly several times until the discharge port 26 is completely opened, allowing the device to continue to be used. Due to the cooperative design between the elastic device 27 and the column 35, the discharge port 26 is opened, preventing the return and discharge of materials from being blocked due to the discharge port 26. Example

[0049] Please see Figure 9The inner thread of the screw cap 2 is used to install the brush bottle B4. The outer ring of the end of the brush bottle B4 is threaded. The inner ring of the screw cap 2 and the outer ring of the end of the brush bottle B4 are threaded to match. The screw cap 2 is also suitable for other bottle bodies.

[0050] By using the inner ring thread groove of the screw cap 2, this device can be installed on any container bottle. The bottle opening thread of the container needs to be compatible with the inner ring thread groove of the screw cap 2, and the size of the bottle opening must be compatible with the size of the screw cap 2. Through the setting of the screw cap 2 and the brush bottle B4, it can achieve the effect of replacing containers of different shapes.

Claims

1. A paint touch-up brush head structure, comprising a brush bottle A (1), characterized in that: A screw cap (2) is threadedly installed at the port of the brush bottle A (1). The inner ring of the screw cap (2) has a threaded groove, and the outer ring of the end of the brush bottle A (1) has a thread. The bottom inner ring of the screw cap (2) and the outer ring of the end of the brush bottle A (1) are threaded to fit each other. The screw cap (2) includes a T-shaped block (21), a ring (23), and an extension block (25). A brush head (3) is snapped into the inside of the screw cap (2).

2. The paint touch-up brush head structure according to claim 1, characterized in that: The top of the twist cap (2) is provided with a T-shaped block (21), the two long sides of the T-shaped block (21) are recessed inward, and the inner surface of the long side of the end of the T-shaped block (21) is symmetrically provided with a locking block (22). The inside of the twist cap (2) is provided with a ring (23), the outer diameter of the ring (23) is adapted to the port diameter of the brush bottle A (1), and a rectangular groove (24) is opened inside the ring (23).

3. The paint touch-up brush head structure according to claim 2, characterized in that: The top of the twisted cap (2) is fixedly installed inside the T-shaped block (21) with an extension block (25). The extension block (25) has a linear array of discharge ports (26) inside. The cross-section of the discharge port (26) is rectangular. The extension block (25) is hollowed out above the discharge port (26). The extension block (25) is connected to the rectangular groove (24) through the discharge port (26).

4. The paint touch-up brush head structure according to claim 3, characterized in that: The brush head (3) includes a shell and a brush block (31). The brush block (31) is fixedly fitted inside the shell. The brush block (31) has a connecting port (32) inside. The top surface of the shell is flush with the bottom surface of the locking block (22). The connecting port (32) is fitted around the outer ring of the extension block (25). The brush block (31) has bristles evenly distributed on its top.

5. The paint touch-up brush head structure according to claim 3, characterized in that: The inside of the twist cover (2) is provided with elastic devices (27) on both sides of the extension block (25). The elastic devices (27) include a bottom plate (271) and a top plate (272). The bottom plate (271) is fixedly installed between the inner wall of the T-shaped block (21) and the outer wall of the extension block (25). The top plate (272) is provided above the bottom plate (271). A spring (273) is fixedly connected between the bottom plate (271) and the top plate (272). A limit strip (274) is fixedly connected to one side of the top of the top plate (272). The limit strip (274) is L-shaped in general.

6. The paint touch-up brush head structure according to claim 4, characterized in that: Inside the brush head (3), a horizontal bar (34) is fixedly installed on the top wall of the connecting port (32). The length of the horizontal bar (34) is equal to the length of the connecting port (32), and the width of the horizontal bar (34) is narrower than the width of the connecting port (32). The bottom of the horizontal bar (34) is uniformly provided with columns (35) in a linear array. The ends of the columns (35) are pointed. The shape and size of the columns (35) are adapted to the shape and size of the discharge port (26). When not pressed, the ends of the columns (35) are located above the discharge port (26).

7. The paint touch-up brush head structure according to claim 1, characterized in that: The twist cap (2) has a brush bottle B (4) installed on its internal thread. The outer ring of the end of the brush bottle B (4) is threaded. The inner ring of the twist cap (2) and the outer ring of the end of the brush bottle B (4) are threaded to match. The twist cap (2) is also suitable for other bottle bodies.