Roller brush

Abstract

The utility model provides a roller brush which comprises a supporting cylinder connected with a handle, supports are oppositely inserted into the two ends of the supporting cylinder, the supports are configured to be only allowed to slide in the axial direction of the supporting cylinder, a rotary knob capable of rotating around the axis of the rotary knob is embedded in the supporting cylinder, and the two ends of the rotary knob are fixedly connected with screw rods screwed with the supports inserted into the supporting cylinder. The supporting cylinder is provided with an operation opening used for exposing the knob, and rotation of the knob can drive the two supports to move oppositely and be connected to the two ends of the roller in an inserted mode. The rotary knobs are rotated at the operation openings, the two oppositely-arranged supports can be driven to move oppositely or reversely, therefore, the distance between the two supports is changed, and the convenience of dismounting and mounting of the roller is improved.

Description

Technical Field

[0001] This application relates to the technical field of construction engineering, and more particularly, to a roller brush. Background Art

[0002] In the field of construction engineering, a roller brush is a commonly used painting tool, which mainly includes a roller and a bracket. The bracket of a traditional roller brush is usually formed by bending a steel shaft. The roller is inserted into the bracket, and nuts or the like are used to lock the end of the steel shaft to prevent the roller from falling off. When installing or disassembling the roller, it is necessary to perform disassembly and assembly operations on the nuts, and the cumbersome operation makes it inconvenient to disassemble and assemble the roller. For this reason, the inventor has proposed a roller brush. Summary of the Utility Model

[0003] The purpose of this application is to propose a roller brush to improve the convenience of disassembling and assembling the roller.

[0004] The embodiments of this application are implemented as follows:

[0005] This application provides a roller brush, which includes a support cylinder connected to a handle. Brackets are inserted oppositely at both ends of the support cylinder. The brackets are configured to be only allowed to slide axially along the support cylinder. A knob that can rotate around its axis is embedded inside the support cylinder. Screws that are screwed with the brackets inserted into the inside of the support cylinder are fixedly connected to both ends of the knob. An operation port for exposing the knob is provided on the support cylinder. Rotation of the knob can drive the two brackets to move towards each other and be inserted into both ends of the roller.

[0006] By rotating the knob at the operation port in this application, the two opposite brackets can be driven to move towards or away from each other, thereby changing the distance between the two brackets and improving the convenience of disassembling and assembling the roller.

[0007] In an alternative embodiment, the handle is vertically arranged with respect to the support cylinder.

[0008] In an alternative embodiment, the support cylinder has insertion holes that are rectangular in cross-section.

[0009] In an alternative embodiment, the knob is coaxially arranged with the support cylinder.

[0010] In an alternative embodiment, the screws are symmetrically arranged on both sides of the knob.

[0011] In an alternative embodiment, the screws are coaxially arranged with the knob.

[0012] In an alternative embodiment, the bracket includes a first connecting rod, a second connecting rod, and a third connecting rod. The first connecting rod is inserted into the insertion hole in a shape-fitting manner. The second connecting rod is disposed between the first connecting rod and the third connecting rod. The third connecting rod is inserted into the end of the roller.

[0013] In an alternative embodiment, the first connecting rod and the third connecting rod are arranged in parallel.

[0014] In an alternative embodiment, a baffle is provided on the third connecting rod and abuts against the end of the roller.

[0015] In an alternative embodiment, the second connecting rod and the third connecting rod are arranged perpendicular to each other. Description of the Drawings

[0016] The exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the embodiments described below are only for explaining the present application and not for limiting the scope of the present application. In the drawings:

[0017] Figure 1 is a schematic diagram of a roller brush according to an embodiment of the present application;

[0018] Figure 2 is a cross-sectional view of a roller brush according to an embodiment of the present application;

[0019] Reference Numerals:

[0020] 10. Roller;

[0021] 20. Bracket;

[0022] 30. Support cylinder;

[0023] 40. Handle;

[0024] 21. First connecting rod;

[0025] 211. Threaded hole;

[0026] 22. Second connecting rod;

[0027] 23. Third connecting rod;

[0028] 24. Baffle;

[0029] 31. Insertion hole;

[0030] 32. Limit groove;

[0031] 33. Knob;

[0032] 34. Screw;

[0033] 35. Operation port. Detailed Description of the Embodiments

[0034] Embodiment 1

[0035] Please refer to Figure 1 - Figure 2 , this embodiment provides a roller brush to improve the convenience of disassembling and assembling the roller.

[0036] In this embodiment, the roller brush includes a roller 10, a bracket 20, a support cylinder 30, and a handle 40. Among them, the support cylinder 30 is connected to the handle 40. Two brackets 20 are inserted oppositely at both ends of the support cylinder 30, and the brackets 20 are configured to be only allowed to slide along the axial direction of the support cylinder 30. A knob 33 that can rotate around its axis is embedded inside the support cylinder 30. Both ends of the knob 33 are fixedly connected with screws 34 that are screwed with the brackets 20 inserted inside the support cylinder 30. An operation opening 35 for exposing the knob 33 is provided on the support cylinder 30. The rotation of the knob 33 can drive the two brackets 20 to move towards each other and be inserted at both ends of the roller 10.

[0037] In the solution of this embodiment, by rotating the knob 33 at the operation opening 35, the two oppositely arranged brackets 20 can be driven to move towards or away from each other, thereby changing the distance between the two brackets 20 and improving the convenience of disassembling and assembling the roller 10.

[0038] It should be noted that the support cylinder 30 is integrally constructed as a hollow cylindrical shape. The handle 40 is integrally formed with the support cylinder 30. The handle 40 is generally arranged at the middle position of the support cylinder 30 along the axial direction, and the handle 40 is arranged perpendicular to the support cylinder 30. The support cylinder 30 has a rectangular plug-in hole 31 along the cross-section. The plug-in hole 31 is arranged along the axis of the support cylinder 30 and penetrates through both end faces of the support cylinder 30. A circular limit groove 32 is provided at the middle position of the support cylinder 30 along the axial direction, and the limit groove 32 is coaxially arranged with the support cylinder 30. The knob 33 is rotatably clamped inside the limit groove 32 around the axis of the support cylinder 30. The knob 33 is coaxially arranged with the support cylinder 30, and an operation opening 35 corresponding to the limit groove 32 is provided on the side wall of the support cylinder 30. A part of the circumferential surface of the knob 33 is exposed at the operation opening 35, so that the user's hand can contact and rotate the knob 33 at the operation opening 35. The screws 34 are fixedly connected to both sides of the knob 33 and are symmetrically arranged on both sides of the knob 33. The screws 34 are coaxially arranged with the support cylinder 30, and the screws 34 are generally arranged inside the plug-in hole 31.

[0039] In addition, the bracket 20 includes a first connecting rod 21, a second connecting rod 22, and a third connecting rod 23. Among them, the first connecting rod 21 is configured as a rectangle in cross-section. The first connecting rod 21 is inserted into the insertion hole 31 in a shape-adapted manner, such that the first connecting rod 21 is only allowed to slide along the axial direction of the support cylinder 30. The first connecting rod 21 has a threaded hole 211 for screwing the screw 34. The second connecting rod 22 is disposed between the first connecting rod 21 and the third connecting rod 23. The third connecting rod 23 is configured as a round rod shape. The third connecting rod 23 is inserted into the end of the drum 10. To improve the structural strength, the first connecting rod 21, the second connecting rod 22, and the third connecting rod 23 are integrally formed structures, and the first connecting rod 21 and the third connecting rod 23 are arranged in parallel, and the second connecting rod 22 and the third connecting rod 23 are arranged perpendicular to each other. To limit the distance that the third connecting rod 23 is inserted into the drum 10, a baffle 24 that abuts against the end of the drum 10 is provided on the third connecting rod 23, and the baffle 24 is configured as a disc shape coaxially arranged with the third connecting rod 23. The baffle 24 and the third connecting rod 23 are integrally formed.

[0040] It should be noted that the limiting groove 32 rotatably limits the knob 33 on the support cylinder 30. The two screws 34 rotate synchronously with the knob 33, and the two screws 34 have threads with opposite helix directions; the insertion hole 31 limits the bracket 20 to only slide along the axial direction of the support cylinder 30. By using the threaded connection between the first connecting rod 21 and the screw 34, the rotation of the knob 33 can drive the two opposite brackets 20 to move towards or away from each other synchronously, so that the disassembly and assembly of the drum 10 are more convenient.

[0041] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A roller brush, characterized in that, It includes a support cylinder connected to a handle. Brackets are inserted at opposite ends of the support cylinder. The brackets are configured to be only allowed to slide axially along the support cylinder. A knob that can rotate around its axis is embedded inside the support cylinder. Two screws that are screwed with the brackets inserted into the inside of the support cylinder are fixedly connected to both ends of the knob. An operation opening for exposing the knob is provided on the support cylinder. The rotation of the knob can drive the two brackets to move towards each other and be inserted at both ends of a roller.

2. The roller brush according to claim 1, wherein the handle is perpendicularly arranged with respect to the support cylinder.

3. The roller brush according to claim 2, wherein the support cylinder has insertion holes that are rectangular in cross-section.

4. The roller brush according to claim 3, wherein the knob is coaxially arranged with the support cylinder.

5. The roller brush according to claim 4, wherein the screws are symmetrically arranged on both sides of the knob.

6. The roller brush according to claim 5, wherein the screws are coaxially arranged with the knob.

7. The roller brush according to claim 6, wherein the bracket includes a first connecting rod, a second connecting rod, and a third connecting rod. The first connecting rod is inserted into the insertion hole in a shape-fitting manner. The second connecting rod is provided between the first connecting rod and the third connecting rod. The third connecting rod is inserted into the end of the roller.

8. The roller brush according to claim 7, wherein the first connecting rod and the third connecting rod are arranged parallel to each other.

9. The roller brush according to claim 8, wherein a baffle that abuts against the end of the roller is provided on the third connecting rod.

10. The roller brush according to claim 9, wherein the second connecting rod and the third connecting rod are arranged perpendicularly to each other.

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