A paint roller brush

Abstract

The utility model discloses a paint roller brush relates to roller brush technical field, including roller brush body, the roller brush body includes the brush bar, the sleeve that sets in the brush bar outside roller brush inner tube and the hair cover that sets in the outside of roller brush inner tube, the roller brush inner tube both ends are provided with connecting portion and fixed part respectively, and the connecting portion periphery is provided with a plurality of angle -leading guide block of leading into, is used for when installing the one end of fixed hair cover, and the inside of fixed part is provided with a plurality of clamping block, the guide groove is seted up on the clamping block, is used for when installing the hair cover of guiding and clamping tightly, and the cooperation of roller brush inner tube through guide block and clamping block constitutes the double -sided fastening structure of the radial tension of both ends and locks the hair cover, prevents the axial displacement of hair cover when rolling or uneven stress even overall slippage, guarantees the continuity of coating operation and coating uniformity, avoids the abnormal wear and tear of hair cover loosening, strengthens the overall structure compactness and durability of product.

Description

Technical Field

[0001] This utility model relates to the field of roller brush technology, specifically a paint roller brush. Background Technology

[0002] A paint roller is a tool for applying paint over large areas. It is widely used in painting in fields such as architectural decoration and home renovation. It mainly consists of a roller, a brush bristle sleeve, and a handle. By rolling the roller, paint is evenly applied to surfaces such as walls and ceilings. Paint rollers have advantages such as high painting efficiency, uniform coating, and labor-saving operation, which can significantly improve construction speed and quality.

[0003] When fixing the brush bristles of a paint roller, existing roller brushes generally adopt a single-sided fixing method, which only locks the bristles by the end cap. This single-sided fixing method is prone to displacement or even complete slippage between the bristles and the roller due to uneven force or vibration during high-speed rolling or long-term use, reducing painting efficiency. It may also cause paint splatter or uneven coating due to loose bristles, affecting the final painting and decoration effect. Utility Model Content

[0004] The purpose of this invention is to provide a paint roller brush to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A paint roller brush includes a roller brush body, the roller brush body including a brush rod, a roller brush inner tube sleeved outside the brush rod, and a bristle sleeve sleeved outside the roller brush inner tube, wherein the roller brush inner tube is provided with a connecting part and a fixing part at both ends respectively.

[0007] The outer periphery of the connecting part is provided with multiple guide blocks with an inlet angle for fixing one end of the wool sleeve during installation. The fixing part is provided with multiple locking blocks, and the locking blocks are provided with guide grooves for guiding and locking the wool sleeve during installation.

[0008] The inner tube of the roller brush forms a double-sided fastening structure that radially tightens and locks the bristle sleeve from both ends through the cooperation of guide blocks and locking blocks.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative: a tail cap is fitted over the outside of the fixing part, and a head cap is provided inside the connecting part.

[0011] In one alternative: a fixing tube is provided inside the head cover, and one end of the brush rod passes through the fixing tube.

[0012] In one alternative embodiment: the inner tube of the roller brush includes a plurality of connecting rods arranged in parallel along the circumference and at least one fixing ring for fixing the connecting rods, the connecting rods and the fixing ring together forming a hollow cylindrical structure.

[0013] In one alternative: the brush handle is provided on the outside.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The paint roller brush consists of an inner tube, bristles, and a brush handle. The inner tube, through the cooperation of guide blocks and locking blocks, forms a double-sided fastening structure that radially supports and locks the bristles from both ends. This prevents the bristles from shifting axially or even slipping off completely when rolling or under uneven force, ensuring the continuity of the painting operation and the uniformity of the coating, improving construction efficiency and quality, avoiding abnormal wear caused by loose bristles, significantly enhancing the overall structural compactness and durability of the product, and extending its service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a paint roller brush.

[0017] Figure 2 This is a schematic diagram of the inner tube of a paint roller brush.

[0018] Figure 3 This is a schematic diagram of the clip structure in a paint roller brush.

[0019] Figure 4 This is a schematic diagram of the fixed tube in a paint roller brush.

[0020] Figure 5 This is an exploded view of the components of the inner tube of a paint roller brush.

[0021] Figure 6 This is a schematic diagram of the bristle sleeve in a paint roller brush.

[0022] Figure 7 This is a schematic diagram of the structure of the inner tube of a paint roller brush of different specifications.

[0023] Figure label annotations: 1-tail cap, 2-brush sleeve, 3-brush rod, 4-handle, 5-inner tube of roller brush, 501-connecting rod, 502-fixing ring, 6-head cap, 7-clamping block, 8-guide block, 9-fixing part, 10-connecting part, 11-guide groove, 12-fixing tube. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. In the drawings and description, similar or identical parts are referred to by the same reference numerals, and in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are merely illustrative and not intended to limit the scope of this utility model. Any obvious modifications or changes made to this utility model do not depart from its spirit and scope.

[0025] In one embodiment, such as Figure 1-7 As shown, a paint roller brush includes a roller brush body, which includes a brush rod 3, a roller brush inner tube 5 sleeved outside the brush rod 3, and a bristle sleeve 2 sleeved outside the roller brush inner tube 5. The roller brush inner tube 5 is provided with a connecting part 10 and a fixing part 9 at both ends. The connecting part 10 and the fixing part 9 are integrally formed with the roller brush inner tube 5, which enhances the overall structural strength and stability.

[0026] The fixing part 9 is provided with multiple locking blocks 7. Each locking block 7 has a guide groove 11 with an inlet angle. The multiple locking blocks 7 play a guiding and radially expanding role when the sleeve 2 is installed, so that one end of the sleeve 2 can be smoothly inserted and fixed. The connecting part 10 is provided with multiple guide blocks 8 with inlet angles on its outer periphery. This structure can effectively guide the sleeve 2 during installation.

[0027] The paint roller brush consists of an inner tube 5, a bristle sleeve 2, and a brush rod 3. The inner tube 5, through the cooperation of a guide block 8 and a locking block 7, forms a double-sided fastening structure that radially supports and locks the bristle sleeve 2 from both ends. This is to prevent the bristle sleeve 2 from shifting axially or slipping out during use. The overall structure is compact, enhancing the durability of the product. As an example, the left, right, up, and down positions of the various components shown in the attached drawings are only one arrangement method. The specific positions are set according to specific needs.

[0028] In one embodiment, such as Figure 1-4 As shown, the fixing part 9 is fitted with a tail cap 1, the connecting part 10 is fitted with a head cap 6, the head cap 6 is fitted with a fixing tube 12, and one end of the brush rod 3 passes through the fixing tube 12.

[0029] In one embodiment, such as Figure 1-5 As shown, the inner tube 5 of the roller brush includes a plurality of connecting rods 501 arranged in parallel along the circumference and at least one fixing ring 502 for fixing the connecting rods 501. The connecting rods 501 and the fixing ring 502 together form a hollow cylindrical structure. The inner tube 5 of the roller brush can be made into roller brushes of different lengths.

[0030] In one embodiment, such as Figure 1-2As shown, a handle 4 is provided on the outside of the brush rod 3.

[0031] The above embodiments of this utility model provide a paint roller brush. When using it, after confirming that the bristle sleeve 2, tail cap 1 and other components are intact, align the hole of the bristle sleeve 2 with the fixing part 9 of the inner tube 5 of the roller brush, and push one end of the bristle sleeve 2 in using the guide groove 11 on the locking block 7. The locking block 7 guides the bristle sleeve 2 to deform and expand and slide in. Put one end of the bristle sleeve 2 onto the connecting part 10. The two ends of the bristle sleeve 2 are respectively radially tightened by the guide block 8 of the connecting part 10 and the locking block 7 of the fixing part 9, forming a complete double-sided fastening structure, which can then be used for dipping and painting operations.

[0032] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A paint roller brush, comprising a roller brush body, characterized in that, The roller brush body includes a brush rod, a roller brush inner tube sleeved outside the brush rod, and a bristle sleeve sleeved outside the roller brush inner tube. The roller brush inner tube is provided with a connecting part and a fixing part at both ends. The outer periphery of the connecting part is provided with multiple guide blocks with an inlet angle for fixing one end of the wool sleeve during installation. The fixing part is provided with multiple locking blocks, and the locking blocks are provided with guide grooves for guiding and locking the wool sleeve during installation. The inner tube of the roller brush forms a double-sided fastening structure that radially supports and locks the bristle sleeve from both ends through the cooperation of guide blocks and locking blocks.

2. The paint roller brush according to claim 1, characterized in that, The fixing part is fitted with a tail cover on the outside, and the connecting part is fitted with a head cover inside.

3. The paint roller brush according to claim 2, characterized in that, A fixing tube is provided inside the head cover, and one end of the brush rod passes through the fixing tube.

4. The paint roller brush according to claim 1, characterized in that, The inner tube of the roller brush includes multiple connecting rods arranged in parallel along the circumference and at least one fixing ring for fixing the connecting rods. The connecting rods and the fixing ring together form a hollow cylindrical structure.

5. The paint roller brush according to claim 1, characterized in that, The brush handle is provided on the outside.

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