Long-handle paint roller brush
By designing a long-handled paint roller brush with adjustable handle length, the inconvenience of use caused by the fixation of the handle length in the prior art is solved, and the effect of adapting to operators of different heights is achieved, making it more convenient and wider to use.
Patent Information
- Application Number
- CN202422042468.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-21
AI Technical Summary
The handle length of the existing paint roller brush is fixed, which cannot be adapted to operators of different heights, resulting in insufficient length of the handle when painting the wall and inconvenient use.
A long-handled paint roller brush is designed with adjustable handle length. Through the fit of the inner extension rod and the screw nut, users can adjust the length of the handle according to their needs, thereby adapting to the use of different environments.
It realizes flexible adjustment of handle length, adapts to operators of different heights, makes use more convenient and wider, and improves the efficiency of painting walls.
Smart Images

Figure CN223034452U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of roller brushes, in particular to a long-handled paint roller brush. Background Art
[0002] The roller brush, also known as a roller, is divided into three types: long hair, medium hair, and short hair. It is a tool for large-area paint rolling. It is often used in the large-area paint rolling of daily building decoration projects. The roller brush that needs to be used with a paint tray is the most labor-saving and time-saving brush due to its wide rolling surface. Especially after connecting an extension rod, it can easily paint the high places or the ceiling of the wall. However, the disadvantage is that paint splashing is likely to occur. Therefore, the bristles of the roller brush should not be too short, but must be fine, so that the painted film will feel delicate. It is manifested by the length of the bristles of the roller brush, rather than the thickness and length of the roller itself. The bristles are usually divided into two types: wool and chemical fiber. Different roller brushes will produce different effects. The long-haired roller brush will produce some small textures with a concave-convex feeling, similar to the texture effect. The short-haired roller brush will produce a relatively uniform and smooth painted surface without a concave-convex feeling. The medium hair is between the two. Most roller brushes are made of wool and foam plastic, and can be divided into paint roller brushes, stucco roller brushes, floor paint roller brushes, flat paint roller brushes, etc. They are mainly used for large-area paint rolling in building decoration projects. And they can be used to roll various blending paints, such as: latex paint, anti-rust paint, interior and exterior wall paints, wallpaper pasting glue, etc.
[0003] Generally, the length of the handle of a general paint roller brush is fixed. When painting the wall, sometimes the length of the handle of the paint roller may not reach the top of the wall, or when the operator's height is not enough, it will affect the painting of the wall and the use is not convenient enough. Content of the Utility Model
[0004] In view of the deficiencies of the existing technology, the purpose of the present utility model is to provide a long-handled paint roller brush, which has the effect of being able to adjust the length of the handle of the paint roller brush according to needs and is more convenient to use.
[0005] The above technical purpose of the present utility model is achieved through the following technical solutions:
[0006] A long-handled paint roller brush includes a roller brush handle. An inner extension rod is slidably arranged in the roller brush handle. The upper end of the inner extension rod is fixedly connected with a roller installation L-shaped frame with an open upper end. A paint roller main body is rotatably arranged above the roller installation L-shaped frame.
[0007] A moving plate is slidably arranged at the upper end of the roller installation L-shaped frame. An installation mechanism is arranged on the moving plate for the movement of the moving plate.
[0008] An adjustment mechanism is provided between the inner top wall and the inner bottom wall of the roller brush handle. The adjustment mechanism is a lead screw rotatably connected between the inner top wall and the inner bottom wall of the roller brush handle. The inner extension rod is threadedly connected to the circumferential side of the lead screw through a lead screw nut.
[0009] In a preferred example of the present utility model, it can be further configured that: two round rods are fixedly connected between the inner top wall and the inner bottom wall of the roller brush handle, and the lead screw nut is threadedly connected to the circumferential side of the lead screw.
[0010] In a preferred example of the present utility model, it can be further configured that: the installation mechanism is a spring fixedly connected to one side wall of the roller installation L-shaped frame. The moving plate is slidably connected between the side walls of the roller installation L-shaped frame through a slider. The spring is fixed to one side of the slider. A screw rod is arranged on one side of the roller installation L-shaped frame, and the screw rod movably penetrates through one side wall of the roller installation L-shaped frame and abuts against the slider.
[0011] In a preferred example of the present utility model, it can be further configured that: two limiting rods are fixedly connected between the side walls of the roller installation L-shaped frame, and the slider is slidably connected to the circumferential sides of the two limiting rods.
[0012] In a preferred example of the present utility model, it can be further configured that: mounting rods are fixedly connected to one side of both the moving plate and the roller installation L-shaped frame, and the paint roller body is rotatably connected to the circumferential sides of the two mounting rods.
[0013] In a preferred example of the present utility model, it can be further configured that: a collection pipe is fixedly connected to the inner bottom wall of the roller installation L-shaped frame, and the collection pipe penetrates through the lower end of the roller installation L-shaped frame and is provided with a collection bottle. A material receiving mounting plate is fixedly connected to the circumferential side of the roller brush handle, and the collection bottle is fixedly connected to the upper end of the material receiving mounting plate.
[0014] In a preferred example of the present utility model, it can be further configured that: the rotating shaft of the lead screw movably penetrates through the lower end of the roller brush handle and is fixedly connected with a rotating handle. A material receiving plate is fixedly connected to one side of the roller installation L-shaped frame.
[0015] In a preferred example of the present utility model, it can be further configured that: a connecting pipe is fixedly connected to the upper end of the collection bottle, and the collection pipe is threadedly connected inside the connecting pipe.
[0016] In summary, the present utility model includes at least one of the following beneficial technical effects:
[0017] 1. It is provided with a roller brush handle, an inner extension rod, a roller mounting L-shaped frame, a paint roller body, and an adjustment mechanism. By rotating the lead screw, the lead screw nut moves on the circumferential side of the lead screw, and the lead screw nut drives the inner extension rod to move upward. The inner extension rod drives the paint roller body to move upward through the roller mounting L-shaped frame. The length at the handle can be adjusted according to needs, so as to meet more requirements, facilitate the use of the rolling brush in different environments, and make the use more convenient and extensive.
[0018] 2. It is provided with a roller mounting L-shaped frame, a moving plate, a mounting rod, and a paint roller body. The paint roller body is sleeved on the surface of the mounting rod. By rotating the screw rod, the screw rod pushes the slider to move, and the slider drives the moving plate to move. The mounting rod on the moving plate is inserted into the paint roller body, and the spring is in a compressed state. The paint roller body is arranged between the roller mounting L-shaped frame and the moving plate, which facilitates the replacement and installation of the paint roller body. Description of the Drawings
[0019] Figure 1 is the three-dimensional view of this embodiment;
[0020] Figure 2 is the partial view of the inner extension rod of this embodiment;
[0021] Figure 3 is the three-dimensional sectional view of this embodiment;
[0022] Figure 4 is this embodiment Figure 3 the partial enlarged view of part A in;
[0023] Figure 5 is the partial view of the adjustment mechanism of this embodiment.
[0024] In the figure, 1. Roller brush handle; 2. Material receiving mounting plate; 3. Collection bottle; 4. Collection pipe; 5. Connecting pipe; 6. Inner extension rod; 7. Paint roller body; 8. Roller mounting L-shaped frame; 9. Moving plate; 10. Mounting rod; 11. Material receiving plate; 12. Mounting mechanism; 1201. Screw rod; 1202. Spring; 1203. Slider; 1204. Limiting rod; 13. Adjustment mechanism; 1301. Lead screw; 1302. Round rod; 1303. Lead screw nut; 14. Sliding groove; 15. Rotating handle. Detailed Description of the Embodiment
[0025] The following further elaborates on the present utility model in conjunction with the attached drawings.
[0026] Embodiment:
[0027] Refer to Figures 1-5, A long - handle paint roller brush disclosed by the utility model includes a roller brush handle 1. An inner extension rod 6 is slidably arranged inside the roller brush handle 1. The upper end of the inner extension rod 6 is fixedly connected with a roller - mounting L - shaped frame 8 with an opening at the upper end. Above the roller - mounting L - shaped frame 8, a paint roller body 7 is rotatably arranged;
[0028] A moving plate 9 is slidably arranged at the upper end of the roller - mounting L - shaped frame 8. An installation mechanism 12 is arranged on the moving plate 9 for the movement of the moving plate 9;
[0029] An adjusting mechanism 13 is arranged between the inner top wall and the inner bottom wall of the roller brush handle 1. The adjusting mechanism 13 is a lead screw 1301 rotatably connected between the inner top wall and the inner bottom wall of the roller brush handle 1. The inner extension rod 6 is threadedly connected to the circumferential side of the lead screw 1301 through a lead - screw nut 1303.
[0030] In this embodiment, when operating by personnel of different heights, preferably, a sliding groove 14 is formed on the circumferential side of the inner extension rod 6. The inner extension rod 6 is slidably matched with the roller brush handle 1 through the sliding groove 14. The roller brush handle 1 is a hollow cylinder, and the lower end of the inner extension rod 6 is an opening. The inner extension rod 6 is fixedly connected to the upper end of the lead - screw nut 1303. By rotating the lead screw 1301, the lead - screw nut 1303 moves on the circumferential side of the lead screw 1301. The lead - screw nut 1303 drives the inner extension rod 6 to move upward. The inner extension rod 6 drives the paint roller body 7 to move upward through the roller - mounting L - shaped frame 8. The length of the handle can be adjusted according to requirements, so as to meet more needs.
[0031] Further, specifically, please refer to Figure 5 , Two round rods 1302 are fixedly connected between the inner top wall and the inner bottom wall of the roller brush handle 1. The lead - screw nut 1303 is threadedly connected to the circumferential side of the lead screw 1301.
[0032] In this embodiment, the round rods 1302 are fixed between the inner top wall and the inner bottom wall of the roller brush handle 1. The lead - screw nut 1303 slides on the surface of the round rods 1302, which can make the lead - screw nut 1303 always perform linear translation motion.
[0033] Further, specifically, please refer to Figure 3 and Figure 4 , The installation mechanism 12 is a spring 1202 fixedly connected to one side wall of the roller - mounting L - shaped frame 8. The moving plate 9 is slidably connected between the side walls of the roller - mounting L - shaped frame 8 through a slider 1203. The spring 1202 is fixed to one side of the slider 1203. A screw rod 1201 is arranged on one side of the roller - mounting L - shaped frame 8, and the screw rod 1201 movably penetrates through one side wall of the roller - mounting L - shaped frame 8 and abuts against the slider 1203.
[0034] In this embodiment, the paint roller main body 7 is sleeved on the surface of the mounting rod 10. The screw 1201 is rotated, and the screw 1201 pushes the slider 1203 to move. The slider 1203 drives the moving plate 9 to move. The mounting rod 10 on the moving plate 9 is inserted into the paint roller main body 7, and the spring 1202 is in a compressed state. The paint roller main body 7 is arranged between the roller mounting L-shaped frame 8 and the moving plate 9, which facilitates the replacement and installation of the paint roller main body 7.
[0035] Further, specifically referring to the figure, two limiting rods 1204 are fixedly connected between the side walls of the roller mounting L-shaped frame 8, and the slider 1203 is slidably connected to the circumferential sides of the two limiting rods 1204.
[0036] In this embodiment, the slider 1203 is slidably connected to the circumferential sides of the two limiting rods 1204, so that the slider 1203 can move linearly along the circumferential sides of the limiting rods 1204, preventing the slider 1203 from leaving the groove of the roller mounting L-shaped frame 8.
[0037] Further, specifically referring to the figure, mounting rods 10 are fixedly connected to one side of both the moving plate 9 and the roller mounting L-shaped frame 8, and the paint roller main body 7 is rotatably connected to the circumferential sides of the two mounting rods 10.
[0038] In this embodiment, both sides of the paint roller main body 7 are inserted into the mounting rod 10, and the paint roller main body 7 can rotate on the surface of the mounting rod 10, which facilitates the installation of the paint roller main body 7 and does not affect the rotation of the paint roller main body 7.
[0039] Further, specifically referring to Figure 2 , a collecting pipe 4 is fixedly connected to the inner bottom wall of the roller mounting L-shaped frame 8, and the collecting pipe 4 penetrates through the lower end of the roller mounting L-shaped frame 8 and is provided with a collecting bottle 3. A material receiving mounting plate 2 is fixedly connected to the circumferential side of the roller brush handle 1, and the collecting bottle 3 is fixedly connected to the upper end of the material receiving mounting plate 2.
[0040] In this embodiment, the paint falling from the paint roller main body 7 enters the inner bottom wall of the roller mounting L-shaped frame 8 and is added into the collecting bottle 3 through the collecting pipe 4 for storage, which can effectively reduce the falling of the paint and the pollution of the ground.
[0041] Further, specifically referring to Figure 5 , the rotating shaft of the lead screw 1301 movably penetrates through the lower end of the roller brush handle 1 and is fixedly connected with a rotating handle 15, and a material receiving plate 11 is fixedly connected to one side of the roller mounting L-shaped frame 8.
[0042] In this embodiment, the user can rotate the rotating handle 15 at the lower part of the roller brush handle 1, which can drive the lead screw 1301 to rotate, and can facilitate the adjustment of the elongation length of the inner extension rod 6.
[0043] Further, specifically refer to Figure 3 , a connecting pipe 5 is fixedly connected to the upper end of the collecting bottle 3, and the collecting pipe 4 is threadedly connected to the connecting pipe 5.
[0044] In this embodiment, by rotating the collecting pipe 4, the collecting pipe 4 can be threaded into the connecting pipe 5, and it is also convenient to disassemble the collecting pipe 4. Preferably, the collecting bottle 3 can be fixedly connected to the upper end of the material receiving mounting plate 2 by threads, which is convenient for disassembling the collecting bottle 3 and pouring out the paint in the collecting bottle 3.
[0045] The implementation principle of the above embodiment is: before painting, the paint roller main body 7 is sleeved on the surface of the mounting rod 10. Rotate the screw rod 1201, the screw rod 1201 pushes the slider 1203 to move, the slider 1203 drives the moving plate 9 to move, and the mounting rod 10 on the moving plate 9 is inserted into the paint roller main body 7. The spring 1202 is in a compressed state. The paint roller main body 7 is arranged between the roller mounting L-shaped frame 8 and the moving plate 9, which is convenient for replacing and installing the paint roller main body 7. By rotating the handle 15 to drive the lead screw 1301 to rotate, when the lead screw 1301 rotates, the lead screw nut 1303 moves on the circumferential side of the lead screw 1301, and the lead screw nut 1303 drives the inner extension rod 6 to move upward. The inner extension rod 6 drives the paint roller main body 7 to move upward through the roller mounting L-shaped frame 8. The length at the handle can be adjusted according to needs, so as to meet more requirements and facilitate the use of the rolling brush in different environments, making the use more convenient and extensive.
[0046] The content not described in detail in this specification belongs to the prior art well known to those skilled in the art.
[0047] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.
Claims
1. A long-handled paint roller brush, comprising a roller brush handle (1), characterized in that: An inner extension rod (6) is slidably arranged inside the roller brush handle (1), the upper end of the inner extension rod (6) is fixedly connected to a roller mounting L-shaped frame (8) with an open upper end, and a paint roller body (7) is rotatably arranged above the roller mounting L-shaped frame (8); A movable plate (9) is slidably disposed at the upper end of the roller mounting L-shaped frame (8), and a mounting mechanism (12) is disposed on the movable plate (9) for moving the movable plate (9); An adjustment mechanism (13) is provided between the inner top wall and the inner bottom wall of the roller brush handle (1); the adjustment mechanism (13) is a screw rod (1301) rotatably connected between the inner top wall and the inner bottom wall of the roller brush handle (1); and the inner extension rod (6) is threadedly connected to the circumferential side of the screw rod (1301) via a screw rod nut (1303).
2. A long-handled paint roller brush according to claim 1, characterized in that: Two round rods (1302) are fixedly connected between the inner top wall and the inner bottom wall of the roller brush handle (1), and the screw nut (1303) is threadedly connected to the circumferential side of the screw (1301).
3. A long-handled paint roller brush according to claim 1, characterized in that: The mounting mechanism (12) is a spring (1202) fixedly connected to one side wall of the roller mounting L-shaped frame (8); the movable plate (9) is slidably connected between the side walls of the roller mounting L-shaped frame (8) via a slider (1203); the spring (1202) is fixed to one side of the slider (1203); a screw rod (1201) is provided on one side of the roller mounting L-shaped frame (8); and the screw rod (1201) movably penetrates one side wall of the roller mounting L-shaped frame (8) and abuts against the slider (1203).
4. A long-handled paint roller brush according to claim 3, characterized in that: Two limiting rods (1204) are fixedly connected between the side walls of the roller mounting L-shaped frame (8), and the sliding block (1203) is slidably connected to the circumferential sides of the two limiting rods (1204).
5. The long-handled paint roller brush according to claim 1, characterized in that: The movable plate (9) and one side of the roller mounting L-shaped frame (8) are both fixedly connected with mounting rods (10), and the paint roller body (7) is rotatably connected to the circumferential sides of the two mounting rods (10).
6. A long-handled paint roller brush according to claim 1, characterized in that: The inner bottom wall of the roller mounting L-shaped frame (8) is fixedly connected to a collecting pipe (4), and the collecting pipe (4) passes through the lower end of the roller mounting L-shaped frame (8) and is provided with a collecting bottle (3), the circumferential side of the roller brush handle (1) is fixedly connected to a material receiving mounting plate (2), and the collecting bottle (3) is fixedly connected to the upper end of the material receiving mounting plate (2).
7. The long-handled paint roller brush according to claim 1, characterized in that: The rotating shaft of the screw rod (1301) movably passes through the lower end of the roller brush handle (1) and is fixedly connected to a rotating handle (15); one side of the roller mounting L-shaped frame (8) is fixedly connected to a material receiving plate (11).
8. The long-handled paint roller brush according to claim 6, characterized in that: The upper end of the collecting bottle (3) is fixedly connected to a connecting tube (5), and the collecting tube (4) is threadedly connected inside the connecting tube (5).