Electric drive type paint roller brush adopting flexible shaft transmission
The paint roller brush, driven by a flexible shaft and electrically, solves the problem of insufficient adhesion when brushing high areas, achieving labor-saving brushing and portability, and improving the brushing effect and equipment applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG RONGPENG AIR TOOLS CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-08
AI Technical Summary
Existing paint rollers are difficult to keep in close contact with the wall when painting high places, resulting in poor painting effect and high labor intensity, which can easily lead to worker fatigue.
The electrically driven paint roller brush, which uses a flexible shaft drive, rotates the roller brush head by driving the flexible shaft through a driver. Combined with a foldable handle design and an adjustable mounting bracket, it achieves labor-saving brushing and portability.
It reduces the labor intensity of brushing, improves the brushing effect, and enhances the portability and applicability of the equipment.
Smart Images
Figure CN224213731U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an electrically driven paint roller brush using a flexible shaft drive. Background Technology
[0002] Painting indoor walls often requires manual hand-held paint rollers. Existing paint rollers have rotatable brush heads mounted on a bracket at one end of the handle. During painting, the worker needs to apply force to make the brush head rotate freely. When painting at a high position, it is difficult for the worker to maintain a certain tightness between the brush head and the wall, affecting the painting effect. In addition, such painting work is very labor-intensive and the workers are prone to fatigue. Summary of the Invention
[0003] To address the shortcomings mentioned above, this utility model provides an electrically driven paint roller brush with flexible shaft transmission.
[0004] To achieve the above objectives, this utility model provides an electrically driven paint roller brush with flexible shaft transmission, including a handle assembly, a mounting bracket connected to one end of the handle assembly, and a roller brush head rotatably mounted on the mounting bracket. The handle assembly is also provided with a driver, which is connected to one side of the mounting bracket via a flexible shaft to realize the rotation of the roller brush head. The driver includes a housing fixed to the handle assembly, a drive motor built into the housing, a reducer matched with the drive motor, and a motor control switch for starting and stopping the drive motor. The drive motor output is connected to the flexible shaft after being reduced in speed by the reducer.
[0005] Furthermore, the handle assembly includes a handle rod one and a handle rod two connected by a hinge, and a push-lock is provided on the side of the hinge away from its pivot center.
[0006] Furthermore, the driver also includes a power supply line for powering the device.
[0007] Furthermore, the driver also includes a rechargeable lithium battery for power supply, the rechargeable lithium battery being built into the housing, and the housing having a corresponding charging interface.
[0008] Furthermore, the mounting bracket includes a fixed bracket fixedly connected to the handle assembly, a telescopically adjustable movable bracket on both sides of the fixed bracket, and a locking member for locking the movable bracket in position after adjustment.
[0009] Furthermore, the roller brush head includes a main cylinder, a left end cap and a right end cap used in conjunction with the main cylinder. The left end cap forms a rotatable connection structure with the movable frame on the left side through a bearing, and the right end cap forms a rotatable connection structure with the movable frame on the right side through a bearing. The main cylinder can be quickly disassembled and configured between the left end cap and the right end cap.
[0010] Furthermore, one end of the flexible shaft is connected to the reducer, and the other end of the flexible shaft is connected to the left end cover.
[0011] Furthermore, the flexible shaft includes an inner core for realizing the transmission connection and a sleeve sleeved outside the inner core for protection and dust prevention. The inner core is made of steel wire.
[0012] The advantages of this utility model over the prior art are as follows:
[0013] 1. The roller brush head is driven to rotate by the driver through the flexible shaft, which can save effort when brushing and reduce the labor intensity of painters;
[0014] 2. The handle assembly features a foldable design, which reduces the size by folding, ensuring the portability of the paint roller brush for storage and transportation;
[0015] 3. The length of the mounting bracket is adjustable and can be used with main cylinders of different lengths, meaning the actual brushing length can be adjusted as needed. Attached Figure Description
[0016] Figure 1 This is a perspective view of an electrically driven paint roller brush employing a flexible shaft drive.
[0017] Figure 2 This is a cross-sectional view of an electrically driven paint roller brush employing a flexible shaft drive.
[0018] Figure 3 This is a schematic diagram of the internal structure of the driver involved;
[0019] Figure 4 This is a schematic diagram of the handle components involved;
[0020] Figure 5 This is a schematic diagram showing the assembly of the roller brush head on the mounting bracket.
[0021] Figure 6 for Figure 5 A sectional view;
[0022] Figure 7 for Figure 5 Exploded view.
[0023] In the diagram: 1. Handle assembly; 11. Handle lever one; 12. Hinge; 121. Press-lock; 13. Handle lever two; 2. Driver; 21. Housing; 22. Motor control switch; 23. Drive motor; 24. Reducer; 25. Power cord; 3. Flexible shaft; 4. Mounting bracket; 41. Fixed bracket; 42. Movable bracket; 43. Locking element; 5. Roller brush head; 51. Main cylinder; 52. Left end cap; 53. Right end cap. Detailed Implementation
[0024] like Figure 1 , Figure 2 As shown, an embodiment of the present invention provides an electrically driven paint roller brush with flexible shaft transmission, including a handle assembly 1, a mounting bracket 4 connected to one end of the handle assembly 1, and a roller brush head 5 rotatably mounted on the mounting bracket 4. The handle assembly 1 is also provided with a driver 2, which is connected to one side of the mounting bracket 4 via a flexible shaft 3 to realize the rotation of the roller brush head 5.
[0025] like Figure 2 , Figure 3 As shown, the driver 2 includes a housing 21 fixed to the handle assembly 1, a drive motor 23 built into the housing 21, a reducer 24 matching the drive motor 23, and a motor control switch 22 for starting and stopping the drive motor 23. The drive motor 23 is reduced in speed by the reducer 24 and then output to the flexible shaft 3. The driver 2 also includes a power cord 25 for power supply. Alternatively, the power cord 25 can be omitted, and the driver 2 also includes a rechargeable lithium battery for power supply. The rechargeable lithium battery is built into the housing 21, and a corresponding charging interface is formed on the housing 21, which allows for more convenient wireless use.
[0026] like Figure 4 As shown, the handle assembly 1 includes a handle rod 11 and a handle rod 2 13 connected by a hinge 12. A press lock 121 is provided on the other side of the hinge 12 away from its pivot center. When the press lock 121 is opened, the handle rod 11 and the handle rod 2 13 can be folded together to realize the folding function.
[0027] like Figures 5-7As shown, the mounting bracket 4 includes a fixed bracket 41 fixedly connected to the handle assembly 1, a movable bracket 42 that is telescopically adjustable on both sides of the fixed bracket 41, and a locking member 43 for locking the movable bracket 42 after adjustment; the roller brush head 5 includes a main cylinder 51, a left end cover 52 and a right end cover 53 used in conjunction with the main cylinder 51. The left end cover 52 forms a rotatable connection structure with the movable bracket 42 on the left side through a bearing, and the right end cover 53 forms a rotatable connection structure with the movable bracket 42 on the right side through a bearing. The main cylinder 51 can be quickly detached and configured between the left end cover 52 and the right end cover 53; one end of the flexible shaft 3 forms a transmission connection with the reducer 24, and the other end of the flexible shaft 3 forms a transmission connection with the left end cover 52; the flexible shaft 3 includes an inner core for realizing the transmission connection and a sleeve sleeved outside the inner core for protection and dust prevention. The inner core is made of steel wire.
[0028] The roller brush head is driven to rotate by a driver via a flexible shaft, which saves effort during painting and reduces the labor intensity of painters; the handle assembly has a foldable structure design, which reduces the size by folding and ensures the portability of the paint roller brush for storage and transportation; the length of the mounting bracket is adjustable and can be used to adapt to the main body of different lengths, that is, the actual painting length can be adjusted as needed.
[0029] In practical use, for ease of understanding of this utility model, it will be described in conjunction with the accompanying drawings;
[0030] Replacement of main cylinder 51: After the locking part 43 is unlocked, the movable frame 42 slides along the fixed frame 41 and drives the left end cover 52 and the right end cover 53 to move synchronously. In this way, the main cylinder 51 can be removed and replaced with a main cylinder 51 of appropriate length as needed, thus realizing the length adjustment of the main cylinder 51. After the length adjustment is completed, tighten the locking part 43 again.
[0031] Folding function: Opening the press lock 121 allows the handle rod 11 and handle rod 2 13 to fold together, thus achieving the folding function.
[0032] Electric-driven roller brush function: The main cylinder 51 is dipped in an appropriate amount of paint, and the motor control switch 22 is turned on to make the drive motor 23 work. After the drive motor 23 is reduced by the reduction gearbox 24, it drives the flexible shaft 3 to rotate. The other end of the flexible shaft 3 is connected to the left end cover 52. In this way, the left end cover 52, the right end cover 53, and the main cylinder 51 rotate synchronously, bringing the roller brush head 5 close to the wall surface to be painted, thus realizing the electric-driven roller brush function, which is very labor-saving.
[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An electrically driven paint roller brush with flexible shaft transmission, comprising a handle assembly (1), a mounting bracket (4) connected to one end of the handle assembly (1), and a roller brush head (5) rotatably mounted on the mounting bracket (4), characterized in that: The handle assembly (1) is also provided with a driver (2). The driver (2) is connected to one side of the mounting bracket (4) via a flexible shaft (3) to realize the rotation of the roller brush head (5). The driver (2) includes a housing (21) fixed on the handle assembly (1), a drive motor (23) built into the housing (21), a reducer (24) matched with the drive motor (23), and a motor control switch (22) for starting and stopping the drive motor (23). The drive motor (23) is decelerated by the reducer (24) and then output to the flexible shaft (3).
2. The electrically driven paint roller brush with flexible shaft transmission according to claim 1, characterized in that: The handle assembly (1) includes a handle rod one (11) and a handle rod two (13) connected by a hinge (12), and a push-lock (121) is provided on the other side of the hinge (12) away from its pivot center.
3. The electrically driven paint roller brush with flexible shaft transmission according to claim 1, characterized in that: The driver (2) also includes a power supply line (25) for power supply.
4. The electrically driven paint roller brush with flexible shaft transmission according to claim 1, characterized in that: The driver (2) also includes a rechargeable lithium battery for power supply, which is built into the housing (21) and has a corresponding charging interface.
5. The electrically driven paint roller brush with flexible shaft transmission according to claim 1, characterized in that: The mounting bracket (4) includes a fixed bracket (41) fixedly connected to the handle assembly (1), a telescopically adjustable movable bracket (42) on both sides of the fixed bracket (41), and a locking member (43) for locking the movable bracket (42) in position after adjustment.
6. The electrically driven paint roller brush with flexible shaft transmission according to claim 5, characterized in that: The roller brush head (5) includes a main cylinder (51), a left end cap (52) and a right end cap (53) used in conjunction with the main cylinder (51). The left end cap (52) is connected to the movable frame (42) on the left side by a bearing. The right end cap (53) is connected to the movable frame (42) on the right side by a bearing. The main cylinder (51) can be quickly disassembled between the left end cap (52) and the right end cap (53).
7. The electrically driven paint roller brush with flexible shaft transmission according to claim 6, characterized in that: One end of the flexible shaft (3) is connected to the reducer (24) for transmission, and the other end of the flexible shaft (3) is connected to the left end cover (52) for transmission.
8. The electrically driven paint roller brush with flexible shaft transmission according to claim 7, characterized in that: The flexible shaft (3) includes an inner core for realizing transmission connection and a sleeve sleeved outside the inner core for protection and dust prevention. The inner core is made of steel wire.