Wall surface polishing device for building decoration

Abstract

The invention relates to the technical field of polishing devices, and discloses a building decoration wall surface polishing device which comprises a handheld polishing machine body, a rotating shaft is fixedly connected to one end of the handheld polishing machine body, and a first rectangular shell and a second rectangular shell are arranged on one side of the handheld polishing machine body; the grinding device comprises a first rectangular shell and a second rectangular shell, the adjacent sides of the first rectangular shell and the second rectangular shell are open, and a first connecting shaft and a second connecting shaft are rotationally mounted on the inner wall of the first rectangular shell and the inner wall of the second rectangular shell correspondingly. When the wall corner needs to be ground, the second rectangular shell is rotated to the position above the first rectangular shell, the open sides of the first rectangular shell and the second rectangular shell abut against the other wall face, the wall corner can be ground and polished, most of the dead angle areas of the wall corner can make contact with the grinding disc, and therefore the wall corner can be ground and polished. And the overall grinding and polishing effect of the wall surface is better.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, in particular to a wall grinding device for building decoration. Background Art

[0002] The interior decoration of a building is to create a comfortable living environment by designing and constructing inside the building. During the decoration process, grinding equipment is needed to grind and polish the wall. Existing wall grinding equipment is usually designed to be handheld, such as a wall grinding device with auxiliary support for building decoration disclosed in the authorization announcement number CN218746645U. The stability of the overall grinding device and the arm and the grip is maintained by the auxiliary frame and the support frame made of stainless steel. During grinding, the auxiliary frame that is rotatably connected to the support frame can be used to cooperate with the angle of the arm for auxiliary fine-tuning according to different angles. When it is necessary to grind a higher position on the wall, the bolt button can be loosened and separated from the two sides of the main body through the threaded connection between the rotating shaft, the sealed grinding mechanism and the bolt button, and the angle between the support frame and the main body can be rotated and adjusted in cooperation with the rotating shaft to adapt to the grinding operation support auxiliary process at high and low places on the wall.

[0003] Currently, most of the existing grinding devices for grinding and polishing walls are handheld grinders. Like the above-mentioned prior art, a protective shell is set on the outside of the grinding disc for dust prevention. The protective shell has a certain thickness. When grinding at a corner, one side of the protective shell is against another wall, resulting in a part of the corner being unable to contact the grinding disc. There are many dead angles at the corner, which affects the overall grinding and polishing effect of the wall. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a wall polishing device for architectural decoration which can reduce the number of dead corners in the corners that are not polished.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A wall grinding device for building decoration, comprising a handheld grinder body, one end of the handheld grinder body is fixedly connected to a rotating shaft, one side of the handheld grinder body is provided with a first rectangular shell and a second rectangular shell, the adjacent sides of the first rectangular shell and the second rectangular shell are both open, the inner walls of the first rectangular shell and the second rectangular shell are respectively rotatably installed with a first connecting shaft and a second connecting shaft, the outer ends of the first connecting shaft and the second connecting shaft are respectively fixedly installed with a first grinding disc and a second grinding disc, the rotating shaft is fixedly connected to the first connecting shaft, one end of the handheld grinder body is fixedly connected to a fixed shell, the fixed shell is fixedly connected to the first rectangular shell, the upper ends of the first rectangular shell and the second rectangular shell are both provided with openings, a sealing mechanism is provided at the opening, a rotating component for controlling the rotation of the second rectangular shell is provided at the upper end of the first rectangular shell, a slide groove is provided at the upper end of the first rectangular shell and the second rectangular shell, the rotating mechanism is slidably connected to the slide groove, a connecting component is provided between the first connecting shaft and the second connecting shaft, and a sliding component for controlling the rotation of the sealing mechanism is provided on one side of the rotating component.

[0006] Preferably, the rotating assembly includes a first arc block located on the first rectangular shell and a second arc block located on the second rectangular shell, a slider is fixedly installed at the lower end of the second arc block on the second rectangular shell, the slider is slidably connected to the slide groove corresponding to the position, a rotating rod is fixedly installed through one side of the second arc block, one end of the rotating rod is rotatably connected to the first arc block, and a limiting assembly is provided at one end of the first arc block.

[0007] Preferably, the limiting assembly includes a threaded rod that passes through the rotating rod and is threadedly connected thereto, limiting plates are fixedly installed at both ends of the threaded rod, and the upper ends of the first rectangular shell and the second rectangular shell are respectively provided with a first limiting groove and a second limiting groove that are in sliding contact with the limiting plate.

[0008] Preferably, the sealing mechanism comprises an arc-shaped sealing plate located in the opening, and a connecting rod is fixedly installed through one end of the arc-shaped sealing plate.

[0009] Preferably, a connecting shell is fixedly installed on the outer side of the opening, and a sealing cushion is fixedly installed on the outer end of the connecting shell.

[0010] Preferably, the sliding assembly includes a connecting groove opened on the side wall of the slide groove, one end of the connecting rod is located in the connecting groove and fixedly sleeved with a first gear, a serrated plate slidably connected in the connecting groove and meshing with the first gear, and one end of the serrated plate is fixedly connected to a sliding block corresponding to the position.

[0011] Preferably, the connecting assembly includes a first gear ring and a second gear ring fixedly mounted on the outside of the first connecting shaft and the second connecting shaft, a second gear is rotatably mounted on the outside of the first rectangular shell, and a serrated belt is meshed between the first gear ring, the second gear ring and the second gear.

[0012] Preferably, a protective shell is arranged outside the first rectangular shell, the rotating shaft is rotatably connected to the protective shell, a sliding shell is slidably connected to the outside of the protective shell, and the sliding shell is rotatably connected to the second connecting shaft.

[0013] Preferably, a connection port communicating with the fixed housing is formed through one side of the first rectangular housing.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a first rectangular shell and a second rectangular shell, which can prevent dust during normal grinding. When grinding a corner, the second rectangular shell is rotated to the top of the first rectangular shell, and the open sides of the first rectangular shell and the second rectangular shell are abutted against another wall surface, and the corner is ground and polished, so that most of the dead angle areas at the corner can contact the grinding disc, so that the overall grinding and polishing effect of the wall is better.

[0015] 2. The present invention sets the adjacent sides of the first rectangular shell and the second rectangular shell to an open state. During normal polishing, the dust in the first rectangular shell and the second rectangular shell can be sucked out through the fixed shell. When polishing the corner, the second rectangular shell is rotated to be above the first rectangular shell, and the open sides of the first rectangular shell and the second rectangular shell are abutted against the other wall to form a sealed state. Then, the connecting shells at the openings are connected to each other, so that the fixed shell can still suck out the dust in the first rectangular shell and the second rectangular shell.

[0016] 3. The present invention arranges an arc-shaped sealing plate in the opening by rotation. During normal polishing, the arc-shaped sealing plate seals the opening. During polishing of the corner, the second rectangular shell is rotated to move above the first rectangular shell. Through the cooperation of the first gear and the serrated plate, the opening can be opened to achieve the connection between the first rectangular shell and the second rectangular shell. When the second rectangular shell is rotated to reset, the opening can be sealed through the cooperation of the first gear and the serrated plate. No separate adjustment is required, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a left-side perspective structural diagram of the first rectangular shell and the second rectangular shell of the present invention; Figure 3It is a schematic diagram of a left-side stereoscopic cross-sectional structure of the first rectangular shell and the second rectangular shell of the present invention; Figure 4 It is a schematic diagram of a top-view three-dimensional cross-sectional structure of a first rectangular shell and a second rectangular shell of the present invention; Figure 5 for Figure 4 A schematic diagram of the enlarged structure of B; Figure 6 It is a right-side perspective cross-sectional structural schematic diagram of the first rectangular shell and the second rectangular shell of the present invention; Figure 7 It is a top view of a three-dimensional structure of a first rectangular shell and a second rectangular shell of the present invention; Figure 8 for Figure 7 A is a schematic diagram of the enlarged structure of the middle part; Fig. 9 It is a three-dimensional structural schematic diagram of the sealing mechanism of the present invention; Fig.10 It is a schematic diagram of the structure of the first limiting groove and the second limiting groove of the present invention.

[0018] In the figure: 1. hand-held grinder body; 2. first rectangular shell; 3. second rectangular shell; 4. sliding shell; 5. sealing cushion; 6. protective shell; 7. second gear; 8. rotating shaft; 9. first gear ring; 10. second connecting shaft; 11. second gear ring; 12. serrated belt; 13. arc-shaped sealing plate; 14. first gear; 15. connecting rod; 16. serrated plate; 17. sliding block; 18. first arc-shaped block; 19. connecting port; 20. fixed shell; 21. second arc-shaped block; 22. rotating rod; 23. threaded rod; 24. limiting plate; 25. first connecting shaft; 26. sliding groove; 27. first limiting groove; 28. connecting groove; 29. ​​connecting shell; 30. second grinding disc; 31. second limiting groove; 32. first grinding disc. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] See also Figure 1-Figure 10, a wall grinding device for building decoration, comprising a hand-held grinder body 1, one end of the hand-held grinder body 1 is fixedly connected with a rotating shaft 8, one side of the hand-held grinder body 1 is provided with a first rectangular shell 2 and a second rectangular shell 3, the inner walls of the first rectangular shell 2 and the second rectangular shell 3 are respectively rotatably installed with a first connecting shaft 25 and a second connecting shaft 10, the outer ends of the first connecting shaft 25 and the second connecting shaft 10 are respectively fixedly installed with a first grinding disc 32 and a second grinding disc 30, the rotating shaft 8 is fixedly connected to the first connecting shaft 25, one end of the hand-held grinder body 1 is fixedly connected with a fixed shell 20, the fixed shell 20 is fixedly connected to the first rectangular shell 2, one side of the first rectangular shell 2 is penetrated with a connecting port 19 connected with the fixed shell 20, the adjacent sides of the first rectangular shell 2 and the second rectangular shell 3 are both open, and during normal grinding, the dust in the first rectangular shell 2 and the second rectangular shell 3 can be sucked away through the fixed shell 20; The first rectangular shell 2 and the second rectangular shell 3 are both provided with openings at the upper ends, and a connecting shell 29 is fixedly installed on the outer side of the opening, and a sealing cushion 5 is fixedly installed on the outer end of the connecting shell 29. A sealing mechanism is provided at the opening, and the sealing mechanism includes an arc-shaped sealing plate 13 located in the opening, and a connecting rod 15 is fixedly installed at one end of the arc-shaped sealing plate 13. A rotating component for controlling the rotation of the second rectangular shell 3 is provided at the upper end of the first rectangular shell 2. During normal grinding, the outer sides of the first rectangular shell 2 and the second rectangular shell 3 are against the wall surface to prevent dust. When it is necessary to grind the corner of the wall, the second rectangular shell 3 is rotated by the rotating component and turned to the top of the first rectangular shell 2, and the open side of the first rectangular shell 2 and the second rectangular shell 3 is against the other wall surface, and the corner of the wall is grinded and polished, so that most of the dead angle areas at the corner of the wall can contact with the grinding disc, so that the overall grinding and polishing effect of the wall surface is better; A slide groove 26 is provided at the upper end of the first rectangular shell 2 and the second rectangular shell 3. The rotating mechanism is slidably connected to the slide groove 26. A connecting component is provided between the first connecting shaft 25 and the second connecting shaft 10. A sliding component for controlling the rotation of the sealing mechanism is provided on one side of the rotating component.

[0021] As a further solution of the present invention, the rotating assembly includes a first arc block 18 located on the first rectangular shell 2 and a second arc block 21 located on the second rectangular shell 3. The lower end of the second arc block 21 on the second rectangular shell 3 is fixedly installed with a slider 17, and the slider 17 is slidably connected to the corresponding slide groove 26. A rotating rod 22 is fixedly installed on one side of the second arc block 21, and one end of the rotating rod 22 is rotatably connected to the first arc block 18. A limiting assembly is arranged at one end of the first arc block 18, and the limiting assembly includes a threaded rod 23 that penetrates the rotating rod 22 and is threadedly connected thereto, and a limiting plate 24 is fixedly installed at both ends of the threaded rod 23. The first rectangular shell The upper ends of the body 2 and the second rectangular shell 3 are respectively provided with a first limiting groove 27 and a second limiting groove 31 which are in sliding contact with the limiting plate 24. When it is necessary to grind the corner of the wall, the second rectangular shell 3 is rotated by the second arc block 21, and then the first arc block 18 and the second arc block 21 are slid, and then the threaded rod 23 is rotated to limit the connection between the limiting plate 24 and the first limiting groove 27, so that the open side of the first rectangular shell 2 and the second rectangular shell 3 are abutted against the other wall to form a sealed state, and then the connecting shell 29 at the opening is connected to each other, so that the fixed shell 20 can still remove dust in the first rectangular shell 2 and the second rectangular shell 3.

[0022] As a further solution of the present invention, the sliding assembly includes a connecting groove 28 opened on the side wall of the slide groove 26, one end of the connecting rod 15 is located in the connecting groove 28 and is fixedly sleeved with a first gear 14, a serrated plate 16 meshing with the first gear 14 is slidably connected in the connecting groove 28, one end of the serrated plate 16 is fixedly connected to a slider 17 corresponding to the position, during normal polishing, the arc-shaped sealing plate 13 seals the opening, when polishing the corner, the second rectangular shell 3 is rotated to rotate it above the first rectangular shell 2, the opening can be opened by the cooperation of the first gear 14 and the serrated plate 16, and the connection between the first rectangular shell 2 and the second rectangular shell 3 is realized, when the second rectangular shell 3 is rotated to reset, the opening can be sealed by the cooperation of the first gear 14 and the serrated plate 16, no separate adjustment is required, and the operation is convenient.

[0023] As a further solution of the present invention, the connecting assembly includes a first toothed ring 9 and a second toothed ring 11 fixedly sleeved on the outside of the first connecting shaft 25 and the second connecting shaft 10, a second gear 7 is rotatably installed on the outside of the first rectangular shell 2, and a sawtooth belt 12 is meshed between the first toothed ring 9, the second toothed ring 11 and the second gear 7. During normal grinding, the handheld grinder body 1 is started to work, and the sawtooth belt 12 is similar to a triangular state (the second gear 7 limits the excess length of the sawtooth belt 12, and the first rectangular shell 2 and the second rectangular shell are engaged. 3 are offset from each other and there is no spacing between them), and the first grinding disc 32 and the second grinding disc 30 can be driven to work at the same time. When grinding the corner of the wall, in the process of rotating the second rectangular shell 3 to move it above the first rectangular shell 2, since the second gear 7 is located directly above the first gear ring 9, the serrated belt 12 is similar to a rectangular state at this time (the second gear 7 loosens the excess length of the serrated belt 12 to make up for the distance between the first rectangular shell 2 and the second rectangular shell 3 at this time), and then through the cooperation of the first gear ring 9, the second gear ring 11, the second gear 7 and the serrated belt 12, the first grinding disc 32 and the second grinding disc 30 can still be driven to work at the same time.

[0024] As a further solution of the present invention, a protective shell 6 is provided on the outside of the first rectangular shell 2, and the rotating shaft 8 is rotatably connected to the protective shell 6. A sliding shell 4 is slidably connected to the outside of the protective shell 6, and the sliding shell 4 is rotatably connected to the second connecting shaft 10. The first gear ring 9, the second gear ring 11, the second gear 7 and the toothed belt 12 are protected by the protective shell 6 and the sliding shell 4.

[0025] During normal grinding, the open sides of the first rectangular shell 2 and the second rectangular shell 3 are in a state of being in contact with each other. At this time, the limiting plate 24 located below is connected to the first limiting groove 27 and the second limiting groove 31 directly below it. The handheld grinder body 1 is started to work, and the first connecting shaft 25 is driven to rotate through the rotating shaft 8. Then, through the cooperation of the first gear ring 9, the second gear ring 11, the second gear 7 and the serrated belt 12, the serrated belt 12 is similar to a triangular state (the second gear 7 limits the excess length of the serrated belt 12. At this time, the first rectangular shell 2 and the second rectangular shell 3 are in contact with each other, and there is no spacing), which can drive the first grinding disc 32 and the second grinding disc 30 to work at the same time; When grinding the corner, the threaded rod 23 is rotated to drive the limit plate 24 to move upward to release the limit, and the second rectangular shell 3 is rotated by the second arc block 21 to be just above the first rectangular shell 2. At this time, the toothed belt 12 is similar to a rectangular state (the second gear 7 loosens the excess length of the toothed belt 12 to make up for the distance between the first rectangular shell 2 and the second rectangular shell 3 at this time); Then slide the first arc block 18 and the second arc block 21, and then rotate the threaded rod 23 to move downward, and limit the position through the connection between the limit plate 24 and the first limit groove 27; During the sliding of the first arc block 18 and the second arc block 21, the sawtooth plate 16 connected thereto can be driven to move, the sawtooth plate 16 drives the first gear 14 to rotate, the first gear 14 drives the connecting rod 15 to rotate, the connecting rod 15 drives the arc sealing plate 13 to rotate, and the opening is opened, so that the first rectangular shell 2 and the second rectangular shell 3 are connected to each other through the connecting shell 29 and the sealing cushion 5 at the opening; The open side of the first rectangular shell 2 and the second rectangular shell 3 are pressed against the other wall to form a sealed state, and the handheld grinder body 1 is started. Through the cooperation of the first gear ring 9, the second gear ring 11, the second gear 7 and the serrated belt 12, the first grinding disc 32 and the second grinding disc 30 can still be driven to work at the same time, and the corner between the roof and the ground is grounded and polished, so that most of the dead angle areas at the corner can contact with the first grinding disc 32 and the second grinding disc 30, so that the overall grinding and polishing effect of the wall is better.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wall grinding device for building decoration, comprising a handheld grinding machine body (1), one end of the handheld grinding machine body (1) is fixedly connected to a rotating shaft (8), characterized in that: A first rectangular shell (2) and a second rectangular shell (3) are provided on one side of the handheld grinder body (1); adjacent sides of the first rectangular shell (2) and the second rectangular shell (3) are both open; a first connecting shaft (25) and a second connecting shaft (10) are rotatably mounted on the inner walls of the first rectangular shell (2) and the second rectangular shell (3); a first grinding disc (32) and a second grinding disc (30) are fixedly mounted on the outer ends of the first connecting shaft (25) and the second connecting shaft (10); the rotating shaft (8) is fixedly connected to the first connecting shaft (25); and one end of the handheld grinder body (1) is fixedly connected to a fixed shell ( 20), the fixed shell (20) is fixedly connected to the first rectangular shell (2), the upper ends of the first rectangular shell (2) and the second rectangular shell (3) are both provided with openings, the openings are provided with sealing mechanisms, the upper ends of the first rectangular shell (2) are provided with a rotating assembly for controlling the rotation of the second rectangular shell (3), the upper ends of the first rectangular shell (2) and the second rectangular shell (3) are both provided with a sliding groove (26), the rotating mechanism is slidably connected to the sliding groove (26), a connecting assembly is provided between the first connecting shaft (25) and the second connecting shaft (10), and one side of the rotating assembly is provided with a sliding assembly for controlling the rotation of the sealing mechanism.

2. A wall polishing device for building decoration according to claim 1, characterized in that: The rotating assembly comprises a first arc block (18) located on the first rectangular shell (2) and a second arc block (21) located on the second rectangular shell (3); a slider (17) is fixedly mounted on the lower end of the second arc block (21) on the second rectangular shell (3); the slider (17) is slidably connected to a slide groove (26) corresponding to the position; a rotating rod (22) is fixedly mounted through one side of the second arc block (21); one end of the rotating rod (22) is rotatably connected to the first arc block (18); and a limit assembly is arranged at one end of the first arc block (18).

3. A wall polishing device for building decoration according to claim 2, characterized in that: The limit assembly comprises a threaded rod (23) penetrating the rotating rod (22) and being threadedly connected thereto, limit plates (24) being fixedly mounted at both ends of the threaded rod (23), and a first limit groove (27) and a second limit groove (31) being respectively formed at the upper ends of the first rectangular shell (2) and the second rectangular shell (3) for sliding contact with the limit plate (24).

4. A wall polishing device for building decoration according to claim 3, characterized in that: The sealing mechanism comprises an arc-shaped sealing plate (13) located in the opening, and a connecting rod (15) is fixedly installed through one end of the arc-shaped sealing plate (13).

5. A wall polishing device for building decoration according to claim 1, characterized in that: A connection shell (29) is fixedly mounted on the outer side of the opening, and a sealing cushion (5) is fixedly mounted on the outer end of the connection shell (29).

6. A wall polishing device for building decoration according to claim 5, characterized in that: The sliding assembly comprises a connecting groove (28) provided on a side wall of the sliding groove (26); one end of the connecting rod (15) is located in the connecting groove (28) and is fixedly sleeved with a first gear (14); a sawtooth plate (16) meshing with the first gear (14) is slidably connected in the connecting groove (28); one end of the sawtooth plate (16) is fixedly connected to a sliding block (17) at a corresponding position.

7. A wall polishing device for building decoration according to claim 1, characterized in that: The connection assembly comprises a first gear ring (9) and a second gear ring (11) fixedly sleeved on the outside of a first connection shaft (25) and a second connection shaft (10); a second gear (7) is rotatably mounted on the outside of the first rectangular housing (2); and a sawtooth belt (12) is meshedly sleeved between the first gear ring (9), the second gear ring (11) and the second gear (7).

8. A wall polishing device for building decoration according to claim 7, characterized in that: A protective shell (6) is arranged outside the first rectangular shell (2), the rotating shaft (8) is rotatably connected to the protective shell (6), a sliding shell (4) is slidably connected outside the protective shell (6), and the sliding shell (4) is rotatably connected to the second connecting shaft (10).

9. A wall polishing device for building decoration according to claim 1, characterized in that: A connection port (19) communicating with the fixed housing (20) is formed through one side of the first rectangular housing (2).

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