A portable wall sander
By using a clamping device for the clamping plate and the sanding plate, and a simplified handle design, the problems of inconvenient disassembly and assembly and unstable center of gravity of existing wall sanders are solved, enabling quick sandpaper replacement, vertical grip and dust collection, thus improving ease of use and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING JIANLEI INT DECORATION ENG CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-26
AI Technical Summary
Existing wall sanders are cumbersome to assemble and disassemble, have limited functionality, cannot quickly change sandpaper, have a fixed handle angle that makes them inconvenient to use, and are unstable and require a lot of effort to operate.
The clamping device formed by the clamping plate and the grinding plate simplifies the handle design, adds a collection compartment, and utilizes a folding structure and adjustable handle length to achieve quick sandpaper replacement and dust collection.
It enables quick switching between different grit sandpaper, reduces the force required, maintains a vertical grip, simplifies the structure, prevents dust from flying around, and reduces size and weight.
Smart Images
Figure CN224274400U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building decoration tools technology, and more specifically, it relates to a portable wall sander. Background Technology
[0002] Decoration refers to both exterior and interior decoration of buildings. Interior decoration includes room design, decoration, furniture arrangement and various small decorations. Undecorated walls have cement bumps that need to be sanded with a grinder to make the wall surface smooth.
[0003] A search revealed that patent CN219380089U discloses a portable wall sander for decoration, including a handle; a sanding component disposed on one side of the handle for auxiliary sanding; a dust-collecting unit disposed on the upper surface of the sanding component for auxiliary dust collection; and a fixing component disposed on the outer surface of the handle for auxiliary fixation. The handle includes a hand sleeve with an anti-slip sleeve fitted on its outer surface, an adjusting rod fitted on the inner wall of the hand sleeve, and a connecting seat rotatably connected to the outer surface of the adjusting rod. The sanding component includes a dust cover, a mounting plate, a drive motor, and a sanding disc. The dust-collecting unit includes a dust-collecting component and a dust-collecting component. This utility model, by employing a vacuum cleaner, a connecting pipe, a telescopic connecting pipe, a connecting bend, a dust collection tank, and a locking seat, can assist the sander in collecting dust during the sanding process, thereby increasing the functionality of the sander.
[0004] The aforementioned patents show that the sanding structure is difficult to disassemble and assemble, and its function is relatively simple, making it impossible to quickly and fundamentally change sandpaper of different grits. The handle angle is fixed, requiring sanding close to the wall, which is inconvenient. In addition, the vacuum cleaner and sander are located at the head, making it top-heavy, requiring users to exert considerable force when gripping the handle, which is quite strenuous. Utility Model Content
[0005] In view of the shortcomings of the existing technology, this utility model provides a convenient wall sander to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a portable wall sander, comprising a sander power mechanism, wherein a sanding plate is detachably connected to the power output end of the sander power mechanism, and a first mounting block, a second mounting block, and a third mounting block are fixedly mounted on the side surface of the sanding plate in sequence, wherein a first sliding groove is formed on the surface of the first mounting block, and a second sliding groove is formed on the surface of the third mounting block, wherein a clamping plate is provided on the side surface of the sanding plate, and a first slider and a second slider are fixedly mounted on one side surface of the clamping plate, wherein the first slider slides inside the first sliding groove, and the second slider slides inside the second sliding groove, wherein a screw is threadedly connected to the side surface of the clamping plate, and the end of the screw penetrates the second mounting block.
[0007] Preferably, the surface of the power mechanism of the grinding machine is provided with a threaded ring, a circular cover is threadedly installed on the surface of the threaded ring, a collection chamber is fixedly installed at the bottom of the circular cover, and a sponge pad is adhered to the side surface of the circular cover.
[0008] Preferably, the end of the power mechanism of the grinding machine is fixedly connected to a fixed frame, the side of the fixed frame is provided with an elongated groove, a sliding column is slidably installed inside the elongated groove, one end of a first spring is fixedly connected to the side surface of the sliding column, and the other end of the first spring is fixedly connected to the side wall of the fixed frame.
[0009] Preferably, a rotating shaft is fixedly installed on the side surface of the fixing frame, a short arm is rotatably installed on the surface of the rotating shaft, a buckle is fixedly connected to the end of the short arm, and a first locking hole and a second locking hole are opened on the side surface of the short arm, the first locking hole and the second locking hole are horizontally arranged.
[0010] Preferably, a long arm is slidably installed inside the short arm, and a second spring is fixedly connected to one end inside the long arm. A locking post is fixedly connected to the other end of the second spring, and the locking post penetrates the side wall of the long arm.
[0011] Preferably, a U-shaped rod is fixedly installed on the bottom surface of the short arm, and a rope hook is fixedly connected to the bottom surface of the power mechanism of the grinding machine.
[0012] Preferably, a second handle is fixedly connected to the side surface of the power mechanism of the grinding machine, a first handle is fixedly connected to the upper surface of the fixed frame, a third handle is fixedly connected to the upper surface of the long arm, and a fourth handle is fixedly connected to the end of the long arm.
[0013] This utility model provides a portable wall sander with the following advantages:
[0014] 1. This sander uses a clamping device formed by a clamping plate and a sanding plate, which allows for quick replacement of sandpaper with different grits, enabling more effective sanding of walls and ensuring sanding results.
[0015] 2. The sander features a folding handle, which reduces the space required for use and placement, while also increasing the handle length to accommodate walls of different heights or distances. The handle is perpendicular to the wall, allowing the user to apply less force to ensure the sandpaper adheres well to the surface and achieves optimal sanding results.
[0016] 3. The simplified and effective collection chamber in this grinder can prevent dust from flying around, reduce air pollution, facilitate centralized dust treatment, and has a simple overall structure, is lightweight, and easy to use. Attached Figure Description
[0017] Figure 1 This is a simplified schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a simplified schematic diagram of the handle bending structure of this utility model;
[0019] Figure 3 This is an overall side view of the present invention;
[0020] Figure 4 This is a simplified schematic diagram of the internal structure of the long arm of this utility model.
[0021] In the diagram: 1. Grinding machine power mechanism; 2. Threaded ring; 3. Circular ring cover; 4. Collection bin; 5. Sponge pad; 6. Grinding plate; 7. First mounting block; 8. First slide groove; 9. Second mounting block; 10. Third mounting block; 11. First slider; 12. Second slide groove; 13. Second slider; 14. Clamping plate; 15. Screw; 16. Fixing bracket; 17. Long groove; 18. First spring; 19. Sliding column; 20. Rotating shaft; 21. Short arm; 22. First locking hole; 23. Second locking hole; 24. Buckle; 25. U-shaped rod; 26. Rope hook; 27. Long arm; 28. Second spring; 29. Locking column; 30. First handle; 31. Second handle; 32. Third handle; 33. Fourth handle. Detailed Implementation
[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0023] Please see Figures 1 to 4This utility model provides a technical solution: a portable wall sander, including a sander power mechanism 1, a sander plate 6 fixedly connected to the power output end of the sander power mechanism 1, a clamping plate 14 provided on the side surface of the sander plate 6, and sandpaper clamped between the clamping plate 14 and the sander plate 6, which facilitates disassembly and installation. The sandpaper can also be changed to different grits to better meet the sanding effect.
[0024] In this embodiment, please refer to Figure 2 A first mounting block 7, a second mounting block 9, and a third mounting block 10 are fixedly installed on the surface of the grinding plate 6. A first sliding groove 8 is formed on the side surface of the first mounting block 7, and a second sliding groove 12 is formed on the side surface of the third mounting block 10. At the same time, a first slider 11 and a second slider 13 are fixedly installed on the side of the clamping plate 14. By sliding the first slider 11 inside the first sliding groove 8 and the second slider 13 inside the second sliding groove 12, the clamping plate 14 can slide to fit against the side of the grinding plate 6, which can effectively clamp the sandpaper. Then, the clamping plate 14 can be fixedly tightened onto the second mounting block 9 by using the screws 15 threaded on the side of the clamping plate 14, which can play a fixing role.
[0025] In this embodiment, please refer to Figure 1 The surface of the power mechanism 1 of the grinder is provided with a threaded ring 2. The threaded ring 2 allows the circular cover 3 to be installed on the surface of the power mechanism 1 of the grinder. The circular cover 3 will cover the grinding plate 6. When the grinding plate 6 grinds the wall, the dust will enter the circular cover 3. The surface of the circular cover 3 is glued with a sponge pad 5. The sponge pad 5 will stick to the wall to ensure that the dust will not splash around. Then the dust will fall into the collection chamber 4 fixedly connected to the bottom of the circular cover 3 for collection and easy cleaning.
[0026] In this embodiment, please refer to Figure 2 and Figure 3 The end of the power mechanism 1 of the grinder is fixedly connected to a fixed frame 16. The outer wall of the fixed frame 16 is fixedly connected to a rotating shaft 20. A short arm 21 is rotatably mounted on the rotating shaft 20. A U-shaped rod 25 is fixedly connected to the bottom of the short arm 21. At the same time, a rope hook 26 is fixedly connected to the bottom of the power mechanism 1 of the grinder. The short arm 21 can be folded up by constructing the U-shaped rod 25 using the rope hook 26, which serves to store and reduce the scope of use.
[0027] In this embodiment, please refer to Figure 2 and Figure 3The side wall of the fixed frame 16 has an elongated groove 17, and a sliding column 19 is slidably installed inside the elongated groove 17. The surface of the sliding column 19 is fixedly connected to the inner wall of the fixed frame 16 by a first spring 18. The tail end of the short arm 21 is fixedly connected to a buckle 24. By rotating the short arm 21 and then pushing the sliding column 19 downward, the hand is released and the sliding column 19 is locked into the buckle 24. This makes the short arm 21 parallel to the power mechanism 1 of the grinding machine, thus achieving a fixing effect.
[0028] In this embodiment, please refer to Figure 3 and Figure 4 The short arm 21 has a long arm 27 that slides inside, which increases the overall length of the handle to accommodate walls of different heights and distances. Grinding at a grip angle perpendicular to the wall can improve the grinding effect. In addition, the overall structure is simplified, the weight is reduced, and the workload is less.
[0029] In this embodiment, please refer to Figure 3 and Figure 4 The inner wall of the long arm 27 is fixedly connected to the second spring 28, and the second spring 28 is fixedly connected to the locking post 29. At the same time, the first locking hole 22 and the second locking hole 23 are opened on the surface of the short arm 21. More locking holes can even be set so that the locking post 29 can be locked into different locking holes 23, thereby increasing or decreasing the length of the handle.
[0030] In this embodiment, please refer to Figure 4 A first handle 30 is fixedly connected to the upper surface of the fixed frame 16, a second handle 31 is fixedly connected to the side surface of the power mechanism 1 of the grinder, a third handle 32 is fixedly connected to the upper surface of the long arm 27, and a fourth handle 33 is fixedly connected to the end of the long arm 27. When the short arm 21 is retracted, the first handle 30 and the second handle 31 can be gripped to hold the entire grinder. When the short arm 21 and the long arm 27 are opened, the third handle 32 and the fourth handle 33 can be gripped to hold the entire grinder.
[0031] The specific usage and function of this embodiment are as follows:
[0032] By sliding the first slider 11 and the second slider 13 in the first groove 8 and the second groove 12, the clamping plate 14 can be attached to the side of the sanding plate 6, thus clamping the sandpaper for sanding the wall surface. At the same time, different grit sandpapers can be changed to improve the sanding effect. Then, the screw 15 is used to fix it to prevent the sandpaper from falling off. The dust generated by sanding the wall will enter the collection chamber 4 through the circular cover 3 for collection and disposal. The short arm 21 can rotate and fold between itself and the fixed frame 16 to reduce the space required for use and placement. At the same time, the long arm 27 can be used to increase the length of the handle to ensure the sanding effect.
Claims
1. A portable wall sander, comprising a sander power mechanism (1), characterized in that: The power output end of the grinding machine power mechanism (1) is detachably connected to a grinding plate (6). A first mounting block (7), a second mounting block (9), and a third mounting block (10) are fixedly installed on the side surface of the grinding plate (6) in sequence. A first sliding groove (8) is opened on the surface of the first mounting block (7), and a second sliding groove (12) is opened on the surface of the third mounting block (10). A clamping plate (14) is provided on the side surface of the grinding plate (6). A first slider (11) and a second slider (13) are fixedly installed on one side surface of the clamping plate (14). The first slider (11) slides inside the first sliding groove (8), and the second slider (13) slides inside the second sliding groove (12). A screw (15) is threadedly connected to the side surface of the clamping plate (14), and the end of the screw (15) passes through the second mounting block (9).
2. The portable wall sander according to claim 1, characterized in that: The surface of the power mechanism (1) of the grinding machine is provided with a threaded ring (2), and a circular cover (3) is threadedly installed on the surface of the threaded ring (2). A collection chamber (4) is fixedly installed at the bottom of the circular cover (3), and a sponge pad (5) is adhered to the side surface of the circular cover (3).
3. A portable wall sander according to claim 2, characterized in that: The end of the power mechanism (1) of the grinding machine is fixedly connected to a fixed frame (16). The side of the fixed frame (16) is provided with a long groove (17). A sliding column (19) is slidably installed inside the long groove (17). One end of a first spring (18) is fixedly connected to the side surface of the sliding column (19). The other end of the first spring (18) is fixedly connected to the side wall of the fixed frame (16).
4. A portable wall sander according to claim 3, characterized in that: The rotating shaft (20) is fixedly installed on the side surface of the fixed frame (16). A short arm (21) is rotatably installed on the surface of the rotating shaft (20). A buckle (24) is fixedly connected to the end of the short arm (21). A first locking hole (22) and a second locking hole (23) are opened on the side surface of the short arm (21). The first locking hole (22) and the second locking hole (23) are arranged horizontally.
5. A portable wall sander according to claim 4, characterized in that: The short arm (21) has a long arm (27) slidably installed inside it. The long arm (27) has a second spring (28) fixedly connected to one end inside it. The other end of the second spring (28) is fixedly connected to a locking post (29). The locking post (29) penetrates the side wall of the long arm (27).
6. A portable wall sander according to claim 5, characterized in that: A U-shaped rod (25) is fixedly installed on the bottom surface of the short arm (21), and a rope hook (26) is fixedly connected to the bottom surface of the power mechanism (1) of the grinding machine.
7. A portable wall sander according to claim 6, characterized in that: The power mechanism (1) of the grinding machine is fixedly connected to a second handle (31) on its side surface, the upper surface of the fixed frame (16) is fixedly connected to a first handle (30), the upper surface of the long arm (27) is fixedly connected to a third handle (32), and the end of the long arm (27) is fixedly connected to a fourth handle (33).