A folding wall paint roller tool

By designing an adjustable-length and foldable paint roller tool, the problems of fixed length and large space occupation of existing paint roller devices are solved, achieving portability and efficient use.

CN224452174UActive Publication Date: 2026-07-03吴家杰

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
吴家杰
Filing Date
2025-06-09
Publication Date
2026-07-03

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    Figure CN224452174U_ABST
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Abstract

This utility model discloses a foldable wall paint roller tool, applicable to the field of paint rollers. It includes a fixed rod, with a telescopic frame slidably sleeved on the inner wall of the fixed rod. A fixed head is rotatably sleeved on the inner wall of the telescopic frame, and a roller brush is engaged between the fixed heads. This utility model achieves length adjustment by rotating the rotating head, causing a rotating shaft to drive a second bevel gear. The rotation of the second bevel gear drives a bidirectional lead screw, causing the two telescopic frames to move relative to or away from each other. This reduces usage costs and improves practicality and applicability. Furthermore, by moving a pull block to disengage the locking rod from the locking hole, the roller brush is folded from horizontal to vertical. After folding, the locking rod engages with the locking hole under the action of a spring, securing it. This folding mechanism reduces space occupation, improves practicality, and facilitates use.
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Description

Technical Field

[0001] This utility model relates to the field of paint rollers, and in particular to a foldable wall paint roller tool. Background Technology

[0002] A search of Chinese patents revealed publication number CN206071004U, which describes a paint roller brush device. The device includes a paint hopper, a feed pipe, a connecting rod, a universal joint, a support, a roller, an electric rotating shaft, a baffle groove, a piston rod, a cylinder, a blower, a triangular brush, a drain hole, and a paint chamber. The roller has a paint chamber inside, and its top end is movably connected to the paint hopper via the feed pipe. The bottom end of the paint hopper has a baffle groove on one side of the roller, with a drain hole in the middle of the baffle groove. Both sides of the feed pipe are movably connected to the connecting rod and the support via universal joints. A triangular brush is mounted on the connecting rod. The support is movably connected to the piston rod via the electric rotating shaft, and a blower is located inside the support. A cylinder is mounted at one end of the piston rod. This paint roller brush device solves the problems of paint dripping, labor-intensive operation, non-adjustable angle, and inability to paint corners found in existing technologies. It improves the device's efficiency, convenience, and effectiveness.

[0003] Existing paint rollers are not length-adjustable; the mounting brackets of most paint rollers are of a fixed length and only suitable for rollers of that length. If different lengths of rollers are required, the entire roller assembly needs to be replaced, increasing usage costs and reducing practicality and applicability. They are also inconvenient to use and lack a folding function. Generally, the mounting bracket and handle of a roller are fixedly connected, taking up a lot of space when stored, making them inconvenient to store and carry, further reducing practicality and usability. To solve the above problems, we propose a folding wall paint roller tool. Utility Model Content

[0004] The purpose of this invention is to provide a foldable wall paint roller tool, which has the advantages of adjustable length and folding function.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a folding wall paint roller tool, including a fixed rod, a telescopic frame slidably sleeved on the inner wall of the fixed rod, a fixed head rotatably sleeved on the inner wall of the telescopic frame, a roller brush being engaged between the fixed heads, a bidirectional screw rotatably sleeved on the inner wall of the fixed rod, and the bidirectional screw being threadedly connected to the inner wall of the telescopic frame, a first bevel gear fixedly sleeved on the surface of the bidirectional screw, a second bevel gear meshing on the surface of the first bevel gear, a rotating shaft fixedly sleeved at the axis of the second bevel gear, and the rotating shaft being rotatably sleeved on the inner wall of the fixed rod.

[0006] By adopting the above technical solution, the rotating head drives the rotating shaft to rotate the second bevel gear, and the rotation of the second bevel gear drives the bidirectional lead screw to move the two telescopic frames relative to each other or in opposite directions, thereby achieving the purpose of length adjustment, reducing the cost of use, and improving practicality and applicability.

[0007] The present invention is further configured such that: a U-shaped frame is bolted to the top of the fixed rod, a fixed shaft is bolted between the inner walls of the U-shaped frame, a rotating block is rotatably sleeved on the surface of the fixed shaft, a snap-fit ​​rod is slidably sleeved on the inner wall of the rotating block, a limit plate is fixedly sleeved on the surface of the snap-fit ​​rod, a spring is provided between the limit plate and the inner wall of the rotating block, and a snap-fit ​​hole is opened on the surface of the fixed shaft, and the snap-fit ​​hole snaps into the snap-fit ​​rod.

[0008] By adopting the above technical solution, the locking rod is disengaged from the locking hole by moving the pull block, and then the roller brush is rotated from horizontal to vertical to fold. After folding, the locking rod is locked into the locking hole under the action of the spring, thus fixing it. This method can achieve the purpose of folding function, reduce the space occupied, improve practicality, and facilitate use.

[0009] The present invention is further configured such that: a telescopic rod is bolted to the surface of the rotating block, a handle is slidably sleeved on the surface of the telescopic rod, a fixing bolt is threaded to the inner wall of the handle, and the inner end of the fixing bolt is in contact with the surface of the telescopic rod.

[0010] By adopting the above technical solution, the length of the handle can be adjusted by setting up a telescopic rod, a handle bar, and a fixing bolt. This makes it convenient to use.

[0011] The present invention is further configured such that a rotating head is bolted to one end of the rotating shaft.

[0012] By adopting the above technical solution, a rotating head is provided to facilitate the rotation of the shaft.

[0013] The present invention is further configured such that: a limiting block is bolted to the surface of the fixed shaft, and an arc-shaped groove is slidably connected to the surface of the limiting block, and the arc-shaped groove is formed on the inner wall of the rotating block.

[0014] By adopting the above technical solution, the rotation angle is limited by setting a limiting block and an arc groove, which facilitates folding.

[0015] The present invention is further configured such that a pull block is bolted to one end of the locking rod.

[0016] By adopting the above technical solution, the locking rod can be easily moved by setting a pull block.

[0017] The present invention is further configured such that the surface of the telescopic rod is printed with scale lines.

[0018] By adopting the above technical solution and setting scale lines, the length of the handle can be easily adjusted.

[0019] The present invention is further configured such that an anti-slip sleeve is fixedly fitted onto the surface of the handle.

[0020] By adopting the above technical solution, an anti-slip sleeve is installed to prevent hand slippage and facilitate operation.

[0021] In summary, this utility model has the following beneficial effects:

[0022] 1. This utility model achieves the purpose of length adjustment by rotating the rotating head to drive the rotating shaft to rotate the second bevel gear, and the rotation of the second bevel gear to drive the bidirectional lead screw to move the two telescopic frames relative to each other or in opposite directions. This reduces the cost of use and improves practicality and applicability.

[0023] 2. This utility model uses a movable pull block to disengage the locking rod from the locking hole, and then rotates the roller brush from horizontal to vertical to fold it. After folding, the locking rod engages with the locking hole under the action of a spring, thus fixing it in place. This method achieves the purpose of folding, reduces the space occupied, improves practicality, and makes it convenient to use. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural view of the present invention;

[0025] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0026] Figure 3 This is a bottom view sectional view of a partial structure of this utility model;

[0027] Figure 4 This is a partial structural side sectional view of the present invention;

[0028] Figure 5 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0029] Reference numerals in the attached diagram: 1. Fixed rod; 2. Telescopic frame; 3. Fixed head; 4. Roller brush; 5. Two-way lead screw; 6. First bevel gear; 7. Second bevel gear; 8. Rotating shaft; 9. U-shaped frame; 10. Fixed shaft; 11. Rotating block; 12. Snap-fit ​​rod; 13. Limiting plate; 14. Spring; 15. Snap-fit ​​hole; 16. Telescopic rod; 17. Handle; 18. Fixing bolt; 19. Rotating head; 20. Limiting block; 21. Arc groove; 22. Pull block; 23. Scale line; 24. Anti-slip sleeve. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Example 1:

[0032] refer to Figure 1 , Figure 2 and Figure 3 A folding wall paint roller tool includes a fixed rod 1, a telescopic frame 2 slidably sleeved on the inner wall of the fixed rod 1, a fixed head 3 rotatably sleeved on the inner wall of the telescopic frame 2, a roller brush 4 being engaged between the fixed heads 3, a bidirectional screw 5 rotatably sleeved on the inner wall of the fixed rod 1, and the bidirectional screw 5 being threadedly connected to the inner wall of the telescopic frame 2, a first bevel gear 6 fixedly sleeved on the surface of the bidirectional screw 5, a second bevel gear 7 meshing on the surface of the first bevel gear 6, a rotating shaft 8 fixedly sleeved at the axis of the second bevel gear 7, and the rotating shaft 8 rotatably sleeved on the inner wall of the fixed rod 1. By rotating the rotating head 19, the rotating shaft 8 drives the second bevel gear 7 to rotate, and the rotation of the second bevel gear 7 drives the bidirectional screw 5 to move the two telescopic frames 2 relative to each other or in opposite directions, thereby achieving the purpose of length adjustment, reducing the cost of use, and improving practicality and applicability.

[0033] refer to Figure 1 and Figure 2 A telescopic rod 16 is bolted to the surface of the rotating block 11. A handle 17 is slidably sleeved on the surface of the telescopic rod 16. A fixing bolt 18 is threaded onto the inner wall of the handle 17, and the inner end of the fixing bolt 18 is in contact with the surface of the telescopic rod 16. By setting up the telescopic rod 16, the handle 17 and the fixing bolt 18, the length of the handle 17 can be adjusted by loosening the fixing bolt 18, making it convenient to use.

[0034] refer to Figure 1 and Figure 3 A rotating head 19 is bolted to one end of the rotating shaft 8, which facilitates the rotation of the rotating shaft 8.

[0035] refer to Figure 1 and Figure 2 The surface of the telescopic rod 16 is printed with scale lines 23, which facilitates the adjustment of the length of the handle 17.

[0036] refer to Figure 1 and Figure 2 The surface of the handle 17 is fixedly fitted with an anti-slip sleeve 24. The anti-slip sleeve 24 is used to prevent the hand from slipping and to facilitate operation.

[0037] Example 2:

[0038] refer to Figure 1 , Figure 2 , Figure 4 and Figure 5A U-shaped frame 9 is bolted to the top of the fixed rod 1. A fixed shaft 10 is bolted between the inner walls of the U-shaped frame 9. A rotating block 11 is rotatably sleeved on the surface of the fixed shaft 10. A locking rod 12 is slidably sleeved on the inner wall of the rotating block 11. A limiting plate 13 is fixedly sleeved on the surface of the locking rod 12. A spring 14 is provided between the limiting plate 13 and the inner wall of the rotating block 11. A locking hole 15 is opened on the surface of the fixed shaft 10, and the locking hole 15 is locked with the locking rod 12. By moving the pull block 22, the locking rod 12 is disengaged from the locking hole 15. Then, the roller brush 4 is rotated from horizontal to vertical to fold. After folding, the locking rod 12 is locked with the locking hole 15 under the action of the spring 14. This method of fixing can achieve the purpose of folding, reduce the space occupied, improve practicality, and facilitate use.

[0039] refer to Figure 5 A limiting block 20 is bolted to the surface of the fixed shaft 10. An arc groove 21 is slidably connected to the surface of the limiting block 20, and the arc groove 21 is opened on the inner wall of the rotating block 11. By setting the limiting block 20 and the arc groove 21, the rotation angle is limited, which facilitates folding.

[0040] refer to Figure 5 One end of the locking rod 12 is bolted with a pull block 22, which facilitates the movement of the locking rod 12.

[0041] Brief description of the usage process: Rotate the rotating head 19, which drives the rotating shaft 8 to rotate. The rotating shaft 8 drives the second bevel gear 7 to rotate, which in turn drives the first bevel gear 6 to rotate. The first bevel gear 6 drives the double-acting screw 5 to rotate, causing the two telescopic frames 2 to move relative to each other, thereby changing the distance between the two fixed heads 3 and thus achieving the purpose of size adjustment. Move the pull block 22, which moves the locking rod 12, causing the locking rod 12 to disengage from the locking hole 15. Then, rotate the roller brush 4 from horizontal to vertical to fold it. After folding, the locking rod 12 engages with the locking hole 15 under the action of the spring 14, fixing it and completing the folding. When using, move the pull block 22 to disengage the locking rod 12 from the locking hole 15, rotate the roller brush 4 from vertical to horizontal, release the pull block 22, and the locking rod 12 engages with the locking hole 15 to fix it and use it, thus achieving the purpose of folding.

[0042] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A folding wall paint roller tool comprising a fixed rod (1), characterized in that, The inner wall of the fixed rod (1) is slidably sleeved with a telescopic frame (2), the inner wall of the telescopic frame (2) is rotatably sleeved with a fixed head (3), a roller brush (4) is clamped between the fixed heads (3), the inner wall of the fixed rod (1) is rotatably sleeved with a bidirectional screw (5), and the bidirectional screw (5) is threadedly connected to the inner wall of the telescopic frame (2). The surface of the bidirectional screw (5) is fixedly sleeved with a first bevel gear (6), the surface of the first bevel gear (6) is meshed with a second bevel gear (7), the shaft (8) is fixedly sleeved at the center of the second bevel gear (7), and the shaft (8) is rotatably sleeved with the inner wall of the fixed rod (1).

2. The folding wall covering roller brush tool of claim 1, wherein, A U-shaped frame (9) is bolted to the top of the fixed rod (1), and a fixed shaft (10) is bolted between the inner walls of the U-shaped frame (9). A rotating block (11) is rotatably sleeved on the surface of the fixed shaft (10), and a snap-fit ​​rod (12) is slidably sleeved on the inner wall of the rotating block (11). A limiting plate (13) is fixedly sleeved on the surface of the snap-fit ​​rod (12), and a spring (14) is provided between the limiting plate (13) and the inner wall of the rotating block (11). A snap-fit ​​hole (15) is opened on the surface of the fixed shaft (10), and the snap-fit ​​hole (15) snaps with the snap-fit ​​rod (12).

3. A folding wall paint roller brush tool according to claim 2, wherein, The rotating block (11) is bolted with a telescopic rod (16), and a handle (17) is slidably sleeved on the surface of the telescopic rod (16). A fixing bolt (18) is threadedly connected to the inner wall of the handle (17), and the inner end of the fixing bolt (18) is in contact with the surface of the telescopic rod (16).

4. The folding wall covering roller brush tool of claim 1, wherein, A rotating head (19) is bolted to one end of the rotating shaft (8).

5. The folding wall covering roller brush tool of claim 2, wherein, The fixed shaft (10) is bolted to the surface of the limiting block (20), and the surface of the limiting block (20) is slidably connected with an arc groove (21), and the arc groove (21) is opened on the inner wall of the rotating block (11).

6. The folding wall covering roller brush tool of claim 2, wherein, A pull block (22) is bolted to one end of the snap-fit ​​rod (12).

7. The folding wall covering roller brush tool of claim 3, wherein, The surface of the telescopic rod (16) is printed with scale lines (23).

8. The folding wall covering roller brush tool of claim 3, wherein, The surface of the handle (17) is fixedly fitted with an anti-slip sleeve (24).