Paint roller brush

Abstract

This invention relates to the field of painting apparatus technology, and more particularly to a paint roller brush. The paint roller brush includes a roller, a roller frame, and two telescopic shafts. The roller includes an inner cylinder and an outer cylinder. The inner cylinder is coaxially fitted inside the outer cylinder, forming a storage cavity for storing paint. The outer cylinder has a through-hole for dispensing paint, which communicates with the storage cavity. The outer cylinder is rotatably mounted on the roller frame. A telescopic shaft is axially inserted at both ends of the inner cylinder, and the position of the telescopic shaft along the axial direction of the inner cylinder is adjustable. During painting operations, the axial length of the telescopic shaft extending beyond the inner cylinder is adjusted so that the end face of the telescopic shaft away from the inner cylinder is aligned with a set edge, ensuring a neat and straight painting trajectory for the roller. This eliminates the need for tracing paper, reducing paint consumption and waste, lowering costs, and improving painting efficiency. The paint in the storage cavity wets the outer circumference of the outer cylinder through the paint outlet, reducing the frequency of paint handling by the worker and improving painting efficiency and paint film uniformity.

Description

Technical Field

[0001] This invention relates to the field of painting apparatus technology, and more particularly to a paint roller brush. Background Technology

[0002] During shipbuilding, it is necessary to paint areas such as cabins and decks, for example, to paint baseboards on bulkheads or deck surfaces. When painting baseboards, a person manually holds the handle of a paint roller to move the roller along a predetermined path to complete the painting. To maintain a neat and straight baseboard, protective rubbing paper is laid down, which not only increases paint usage and waste, raising costs, but also adds extra work for laying and removing the rubbing paper, resulting in cumbersome operation, long painting time, and low efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a paint roller brush to solve the technical problems of high paint cost and waste, as well as low painting efficiency of existing paint roller brushes.

[0004] To achieve this objective, the technical solution adopted by the present invention is as follows:

[0005] Paint roller brushes, including:

[0006] The roller includes an inner cylinder and an outer cylinder. The inner cylinder is coaxially sleeved inside the outer cylinder and forms a storage cavity for storing paint. The outer cylinder is provided with a paint outlet hole that communicates with the storage cavity.

[0007] A roller frame, on which the outer cylinder is rotatably mounted;

[0008] Two telescopic shafts are provided, with one telescopic shaft axially passing through each end of the inner cylinder in the circumferential direction. The position of the telescopic shafts along the axial direction of the inner cylinder is adjustable.

[0009] As an alternative to a paint roller brush, the inner cylinder includes:

[0010] The main cylinder is coaxially sleeved inside the outer cylinder and forms the storage cavity;

[0011] The main cylinder has two coaxially connected adjusting cylinders extending outward from its two ends along its axial direction. The telescopic shaft passes through the corresponding adjusting cylinder and extends into the main cylinder.

[0012] A locking member is movably mounted on the adjusting cylinder. The locking member has a locking position corresponding to locking the telescopic shaft and the adjusting cylinder, and an unlocking position corresponding to unlocking the telescopic shaft.

[0013] As an optional solution for paint roller brushes, the adjusting cylinder is provided with an adjusting hole, and the locking member is movably inserted through the adjusting hole to move between the locked position and the unlocked position;

[0014] When the locking member moves to the locking finger position, it abuts against the corresponding telescopic shaft; when the locking member moves to the unlocking position, it disengages from the corresponding telescopic shaft.

[0015] As an alternative to the paint roller brush, the paint roller brush further includes a guide plate, the guide plate being detachably mounted on the end of the telescopic shaft away from the inner cylinder, and the guide plate being perpendicular to the axial direction of the telescopic shaft.

[0016] As an optional solution for paint roller brushes, the end face of the telescopic shaft away from the inner cylinder has a first hole, and the guide plate has a corresponding second hole. The first hole and the second hole are connected one-to-one and connected by fasteners.

[0017] As an optional solution for paint roller brushes, the guide plate has a positioning strip protruding on one side along the thickness direction, and the telescopic shaft has a positioning cutout circumferentially arranged at the end away from the inner cylinder. When one side of the positioning strip abuts against the positioning cutout, the first hole communicates with the corresponding second hole.

[0018] As an optional solution for paint roller brushes, the roller frame is provided with a support handle, the axial length of which is adjustable.

[0019] As an alternative to a paint roller brush, the support handle includes:

[0020] A fixing rod, one end of which is connected to the roller frame, a central hole is provided in the fixing rod, and a plurality of third holes communicating with the central hole are provided at intervals along the axial direction of the fixing rod;

[0021] An operating lever, one end of which is a gripping part, and the other end of which is provided with an elastic plunger that is movably inserted into the central hole. The elastic plunger selectively engages with one of the third holes.

[0022] As an optional solution for paint roller brushes, the outer cylinder has a plurality of paint outlet holes evenly arranged on its circumferential side.

[0023] As an alternative to paint roller brushes, the storage cavity is closed at one end along the axial direction of the roller, and the other end of the storage cavity along the axial direction of the roller has an opening, which is detachably sealed with a sealing ring.

[0024] The beneficial effects of this invention are as follows:

[0025] The paint roller brush proposed in this invention includes a roller, a roller frame, and two telescopic shafts. During painting operations, the axial length of the telescopic shafts extending out of the inner cylinder is adjusted so that the end face of the telescopic shaft away from the inner cylinder fits against a predetermined edge such as a bulkhead or wall surface. This ensures a neat and straight painting trajectory for the roller, eliminates the need for tracing paper, reduces paint consumption and waste, lowers the cost of painting operations, simplifies the painting process, and improves the efficiency of painting operations.

[0026] In addition, the inner and outer cylinders form a storage cavity for storing paint, and the outer cylinder has a paint outlet hole. When the roller rolls, the paint in the storage cavity wets the outer circumference of the outer cylinder through the paint outlet hole, thus enabling the roller to perform long-term coating, reducing the frequency of paint handling by construction workers, and improving the efficiency of the coating operation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the paint roller brush provided in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the paint roller brush after removing the support handle, as provided in an embodiment of the present invention. Figure 1 ;

[0029] Figure 3 This is a schematic diagram of the structure of the paint roller brush after removing the support handle, as provided in an embodiment of the present invention. Figure 2 ;

[0030] Figure 4 This is an exploded view of the support handle provided in an embodiment of the present invention.

[0031] The component names and labels in the diagram are as follows:

[0032] 1. Outer cylinder; 11. Paint outlet hole; 2. Roller frame; 3. Telescopic shaft; 31. Positioning notch; 4. Adjusting cylinder; 41. Adjusting hole; 5. Locking element; 6. Guide plate; 61. Second hole; 62. Positioning strip; 7. Support handle; 71. Fixing rod; 711. Center hole; 712. Third hole; 72. Operating rod; 73. Elastic plunger. Detailed Implementation

[0033] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.

[0034] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0037] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] When painting baseboards on ship bulkheads or deck areas, the paint roller is manually held by the handle to move the roller along a predetermined path to complete the painting operation. To maintain a neat and straight baseboard, protective rubbing paper is laid down, which not only increases paint usage and waste, raising costs, but also adds extra work for laying and removing the rubbing paper, resulting in cumbersome operation, long painting time, and low efficiency.

[0039] To solve the above problems, such as Figure 1 and Figure 2As shown, this embodiment proposes a paint roller brush for painting the baseboards of ship bulkheads. Of course, this paint roller brush can also be used for painting operations in other scenarios. Specifically, the paint roller brush includes a roller, a roller frame 2, and two telescopic shafts 3. The roller includes an inner cylinder and an outer cylinder 1. The inner cylinder is coaxially fitted inside the outer cylinder 1, forming a storage cavity for storing paint. The outer cylinder 1 has a through-hole 11 that communicates with the storage cavity. The outer cylinder 1 is rotatably mounted on the roller frame 2. A telescopic shaft 3 is axially inserted at both ends of the inner cylinder, and the position of the telescopic shaft 3 along the axial direction of the inner cylinder is adjustable. During painting operations, the axial length of the telescopic shaft 3 extending out of the inner cylinder is adjusted so that the end face of the telescopic shaft 3 away from the inner cylinder is in contact with a predetermined edge such as the bulkhead or wall surface. This ensures a neat and straight painting trajectory for the roller, eliminating the need for tracing paper, reducing paint consumption and waste, lowering the cost of painting operations, simplifying the painting process, and improving the efficiency of painting operations.

[0040] In this embodiment, the inner cylinder and the outer cylinder 1 form a storage cavity for storing paint, and the outer cylinder 1 is provided with a paint outlet hole 11. When the roller rolls, the paint in the storage cavity wets the outer circumference of the outer cylinder 1 through the paint outlet hole 11, thereby enabling the roller to perform long-term coating, reducing the frequency of paint handling by construction workers, and improving the efficiency of the coating operation. Compared with the existing method of directly dipping the roller into paint, coating by wetting the outer cylinder 1 reduces paint waste, avoids excessively thick paint film, and improves the uniformity of paint film thickness.

[0041] like Figure 2 and Figure 3 As shown, multiple paint outlet holes 11 are evenly arranged on the circumferential side of the outer cylinder 1 to ensure uniform wetting of the outer circumferential surface of the outer cylinder 1 and to prevent the paint film from exceeding the set thickness. Specifically, the number and distribution of paint outlet holes 11 can be flexibly adjusted according to the type of paint and the requirements of the coating operation, and are not specifically limited here.

[0042] It should be noted that the storage chamber is closed at one end along the roller's axial direction, while the other end has an opening. This opening is detachably sealed with a sealing ring. The sealing ring is inserted into or threaded into the opening. Before painting begins, the sealing ring is opened, and paint is injected into the storage chamber through the opening. After paint filling is complete, the sealing ring is then closed to prevent paint leakage.

[0043] like Figure 1 and Figure 2As shown, the inner cylinder includes a main cylinder body, an adjusting cylinder 4, and a locking element 5. The main cylinder body is coaxially sleeved inside the outer cylinder 1, forming a storage cavity. An adjusting cylinder 4 extends outward from each of the two axial ends of the main cylinder body, and the telescopic shaft 3 passes through the corresponding adjusting cylinder 4 and extends into the main cylinder body. A locking element 5 is movably mounted on the adjusting cylinder 4. The locking element 5 has a locking position for locking the corresponding telescopic shaft 3 and adjusting cylinder 4, and an unlocking position for unlocking the corresponding telescopic shaft 3. When it is necessary to adjust the axial length of the telescopic shaft 3 extending out of the inner cylinder, the locking element 5 is operated to unlock the telescopic shaft 3, allowing the telescopic shaft 3 to move freely along the axial direction of the inner cylinder. After the telescopic shaft 3 is adjusted to the correct position, the locking element 5 is operated again to lock the telescopic shaft 3. By operating the locking element 5, the telescopic shaft 3 can be flexibly locked or unlocked, improving the adjustment efficiency of the telescopic shaft 3.

[0044] Specifically, the adjusting cylinder 4 has an adjusting hole 41, and the locking member 5 is movably inserted through the adjusting hole 41 to move between the locked position and the unlocked position. When the locking member 5 moves to the locked position, it abuts against the corresponding telescopic shaft 3; when the locking member 5 moves to the unlocked position, it disengages from the corresponding telescopic shaft 3. In this embodiment, the locking member 5 is a bolt, which is threadedly connected to the adjusting hole 41. When locking or unlocking the telescopic shaft 3, it is only necessary to tighten or loosen the locking member 5, which is simple to operate.

[0045] It should be noted that when using a paint roller to paint the baseboards inside a ship's cabin, the bulkhead is selected as the set edge (or reference). The end face of the telescopic shaft 3 furthest from the inner cylinder is always in contact with the bulkhead, ensuring a stable distance between the roller and the set edge. This guarantees a neat and straight painting trajectory. In actual painting operations, only one telescopic shaft 3 needs to be used, while the other telescopic shaft 3 remains locked.

[0046] Furthermore, the paint roller brush also includes a guide plate 6. The guide plate 6 is detachably mounted on the end of the telescopic shaft 3 away from the inner cylinder, and the guide plate 6 is perpendicular to the axial direction of the telescopic shaft 3. The guide plate 6 allows for better contact with the set edge, increasing the contact area and improving the stability of the paint roller brush's contact with the set edge during painting operations. When the guide plate 6 is severely worn, only the guide plate 6 needs to be replaced, thus protecting the telescopic shaft 3, preventing excessive wear, extending the service life of the paint roller brush, and reducing maintenance costs.

[0047] In this embodiment, a first hole is provided on the end face of the telescopic shaft 3 away from the inner cylinder, and a second hole 61 is provided on one end of the guide plate 6. The first hole and the second hole 61 are connected in a one-to-one correspondence and are connected by fasteners. The fasteners are bolts or screws, etc. The telescopic shaft 3 is detachably installed to the guide plate 6 by bolts or screws, which not only provides high installation strength but also facilitates disassembly and assembly operations, thereby improving the disassembly and assembly efficiency of the guide plate 6.

[0048] like Figure 2 and Figure 3 As shown, a positioning strip 62 protrudes from one side of the guide plate 6 along its thickness direction. A positioning notch 31 is circumferentially provided at the end of the telescopic shaft 3 away from the inner cylinder. When one side of the positioning strip 62 abuts against the positioning notch 31, the first hole communicates with the corresponding second hole 61. When the guide plate 6 is installed, the cooperation between the positioning strip 62 and the positioning notch 31 guides and limits the installation of the guide plate 6, facilitating quick alignment of the first hole with the corresponding second hole 61 and improving the installation efficiency of the guide plate 6.

[0049] like Figure 1 As shown, the roller frame 2 is equipped with a support handle 7, the axial length of which is telescopically adjustable. By making the support handle 7 a telescopic structure, the length of the support handle 7 can be flexibly adjusted, making it easy to adjust the length of the support handle 7 according to different usage needs, thus improving the versatility of the paint roller brush.

[0050] like Figure 1 and Figure 4 As shown, the support handle 7 includes a fixed rod 71 and an operating rod 72. One end of the fixed rod 71 is connected to the roller frame 2. A central hole 711 is formed inside the fixed rod 71, and multiple third holes 712 communicating with the central hole 711 are spaced apart along the axial direction of the fixed rod 71. One end of the operating rod 72 is a gripping part, and the other end of the operating rod 72 is provided with an elastic plunger 73, which is movably inserted into the central hole 711. The elastic plunger 73 selectively engages with one of the third holes 712. By engaging the elastic plunger 73 with one of the third holes 712, the length of the support handle 7 can be adjusted in multiple stages to meet different usage requirements. It should be noted that the number and spacing of the third holes 712 in this embodiment can be flexibly set according to adjustment requirements, and are not specifically limited here.

[0051] Specifically, the ball at the top of the elastic plunger 73 is retractably mounted on the operating rod 72. When the elastic plunger 73 is not compressed, part of the ball protrudes from the outer circumference of the operating rod 72. When the operating rod 72 extends into the central hole 711 of the fixing rod 71, the ball retracts into the operating rod 72 under the pressure of the hole wall of the central hole 711. When the elastic plunger 73 slides directly below one of the third holes 712, the ball protrudes from the operating rod 72 and extends into the corresponding third hole 712 under the action of the elastic element (usually a spring) inside the elastic plunger 73, thus achieving a snap-fit ​​engagement with the third hole 712. At this time, the length of the support handle 7 is fixed. When it is necessary to unlock the operating rod 72 or when the operating rod 72 is not adjusted to the correct position, simply push or pull the operating rod 72 to retract the ball back into the operating rod 72 and disengage it from the corresponding third hole 712. The operation is simple. Since the elastic plunger 73 is a conventional component, its specific structure will not be described in detail.

[0052] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paint roller brush, characterized in that, include: The roller includes an inner cylinder and an outer cylinder (1). The inner cylinder is coaxially sleeved inside the outer cylinder (1) and forms a storage cavity for storing paint. The outer cylinder (1) is provided with a paint outlet hole (11) that communicates with the storage cavity. Roller frame (2), the outer cylinder (1) is rotatably mounted on the roller frame (2); Two telescopic shafts (3) are provided, and each end of the inner cylinder is axially inserted with one of the telescopic shafts (3). The position of the telescopic shafts (3) along the axial direction of the inner cylinder is adjustable. The inner cylinder includes: The main cylinder is coaxially sleeved inside the outer cylinder (1) and forms the storage cavity; Adjusting cylinder (4), with one coaxially connected adjusting cylinder (4) extending outward from each of the two ends of the main cylinder body, and the telescopic shaft (3) passing through the corresponding adjusting cylinder (4) and extending into the main cylinder body; Locking member (5), the locking member (5) is movably installed on the adjusting cylinder (4), the locking member (5) has a locking position corresponding to locking the telescopic shaft (3) and the adjusting cylinder (4) and an unlocking position corresponding to unlocking the telescopic shaft (3); In actual painting operations, only one of the telescopic shafts (3) is kept in contact with the set edge of the bulkhead or wall surface at the end face away from the inner cylinder, while the other telescopic shaft (3) remains locked, so as to achieve diagonal painting on the bulkhead or wall surface; The paint roller brush also includes a guide plate (6), and the guide plate (6) is detachably installed on one end of the telescopic shaft (3) away from the inner cylinder, and the guide plate (6) is perpendicular to the axial direction of the telescopic shaft (3).

2. The paint roller brush according to claim 1, characterized in that, The adjusting cylinder (4) has an adjusting hole (41), and the locking member (5) is movably inserted through the adjusting hole (41) to move between the locked position and the unlocked position; When the locking member (5) moves to the locked position, it abuts against the corresponding telescopic shaft (3); when the locking member (5) moves to the unlocked position, it disengages from the corresponding telescopic shaft (3).

3. The paint roller brush according to claim 1, characterized in that, The telescopic shaft (3) has a first hole on the end face away from the inner cylinder, and the guide plate (6) has a second hole (61) on one end. The first hole and the second hole (61) are connected in a one-to-one correspondence and are connected by fasteners.

4. The paint roller brush according to claim 3, characterized in that, The guide plate (6) has a positioning strip (62) protruding on one side along the thickness direction. The telescopic shaft (3) has a positioning cut (31) circumferentially arranged at one end away from the inner cylinder. When one side of the positioning strip (62) abuts against the positioning cut (31), the first hole communicates with the corresponding second hole (61).

5. The paint roller brush according to claim 1, characterized in that, The roller frame (2) is provided with a support handle (7), the axial length of which is adjustable.

6. The paint roller brush according to claim 5, characterized in that, The support handle (7) includes: A fixing rod (71) is provided, one end of which is connected to the roller frame (2). A central hole (711) is provided in the fixing rod (71), and a plurality of third holes (712) communicating with the central hole (711) are provided along the axial direction of the fixing rod (71). The operating lever (72) has a gripping part at one end and an elastic plunger (73) at the other end, which is movably inserted into the central hole (711). The elastic plunger (73) selectively engages with one of the third holes (712).

7. The paint roller brush according to any one of claims 1 to 6, characterized in that, The outer cylinder (1) has a plurality of paint outlet holes (11) evenly arranged on its circumferential side surface.

8. The paint roller brush according to any one of claims 1 to 6, characterized in that, The storage cavity is closed at one end along the axial direction of the roller, and has an opening at the other end along the axial direction of the roller. The opening is detachably sealed with a sealing ring.

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