Wall surface smoothing device for building decoration construction

Abstract

The invention discloses a wall surface smoothing device for building decoration construction, which comprises an outer shell, brushes are distributed at the bottom of the outer shell, connecting seats are fixed on the upper part of the outer shell in bilateral symmetry, a discharge pipeline is fixed on the front side of the top of the outer shell, a servo motor is fixed in the middle of the top of the outer shell, and a power output shaft of the servo motor penetrates out of the outer shell. The lower end of a power output shaft of the servo motor is fixedly nested with a grinding disc, a plurality of guide holes are formed in the grinding disc, and a plurality of protruding blocks are annularly distributed at the bottom of the grinding disc. After the rotating shell and the inner shell rotate by 90 degrees, the protruding arc-shaped part on the rotating shell does not block the arc-shaped notch in the outer shell any more, the opening in the bottom of the inner shell continues to be attached to the top of the grinding disc to form a sealed cavity with the interior of the outer shell, and the two sides of the grinding disc and the filter screens on the two sides of the inner shell are exposed out of the outer shell.

Description

Technical Field

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

[0002] In building decoration construction, wall surface grinding is one of the important processes, which involves improving the flatness, smoothness and aesthetics of the wall surface. Good wall surface treatment can ensure the effective adhesion and durability of subsequent paint, wallpaper or other decorative materials. However, the electric grinding tools in the prior art have poor adjustment flexibility, which makes it inconvenient to grind the wall joints and the inner corners of the wall top, easily leading to an uneven wall surface and flying dust during the construction process, affecting the cleanliness of the construction environment. Therefore, it is necessary to provide a wall grinding device for building decoration construction. Summary of the invention

[0003] The purpose of the present invention is to solve the problems that the electric grinding tools in the prior art have poor adjustment flexibility, are inconvenient for grinding the wall joints and the inner corners of the wall top, easily lead to uneven wall surface, dust flying during construction, and affect the cleanliness of the construction environment, and thus propose a wall grinding device for building decoration construction.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a wall grinding device for building decoration construction, comprising an outer shell, a brush is distributed at the bottom of the outer shell, a connecting seat is fixed symmetrically on the upper part of the outer shell, a discharge pipe is fixed on the front side of the top of the outer shell, a servo motor is fixed on the middle part of the top of the outer shell, a power output shaft of the servo motor passes through the outer shell, a grinding disc is nested and fixed at the lower end of the power output shaft of the servo motor, a plurality of guide holes are opened on the grinding disc and a plurality of raised blocks are distributed in an annular manner at the bottom, a dust suction fan blade is nested and fixed on the power output shaft of the servo motor, the dust suction fan blade is inside the outer shell and located above the grinding disc, a rotatable rotating shell is provided on the upper part of the outer shell, the rotating shell is sleeved on the lower part of the outer shell, guide blocks are diagonally distributed and fixed on the upper part of the outer shell, a slidable fixing ring is provided on the guide block, a raised column is diagonally provided on the fixed ring and a first spring is sleeved on the raised column, a plurality of positioning blocks are distributed in an annular manner on the top of the rotating shell, and the recessed part at the top of the positioning block fits with the raised column on the fixed ring.

[0005] Further preferably, a mounting ring is fixed to the inner wall of the outer shell, a rotatable inner shell is provided on the mounting ring, a filter is symmetrically provided on the inner shell, a rotatable mounting shaft is provided on the rear side of the outer shell, the mounting shaft penetrates into the outer shell, a rotatable first transmission gear is symmetrically provided on the mounting shaft, a first inner gear ring is fixed on the top of the rotating shell, a second inner gear ring is fixed on the upper part of the inner wall of the inner shell, the first transmission gear on the upper part of the mounting shaft is meshed with the first inner gear ring, and the first transmission gear on the lower part of the mounting shaft is meshed with the second inner gear ring.

[0006] Further preferably, a mounting frame is fixed to the inner wall of the upper portion of the outer shell, a rotatable second transmission gear is provided on the mounting frame, a third transmission gear is nested and fixed on the power output shaft of the servo motor, the second transmission gear is meshed with the third transmission gear, a rotatable third inner gear ring is provided in the middle portion of the outer shell, the third inner gear ring is meshed with the third transmission gear, a plurality of guide scrapers are distributed in an annular shape on the third inner gear ring, and the guide scrapers are spiral.

[0007] Further preferably, the outer shell is symmetrically provided with arc-shaped notches front and back, the rotating shell is symmetrically provided with raised arc-shaped portions front and back, the raised arc-shaped portions on the rotating shell are larger than the arc-shaped notches on the outer shell, the outer wall of the inner shell is fitted with the inner wall of the outer shell and the opening at the bottom of the inner shell is fitted with the top of the grinding disk, so that the bottom opening of the outer shell can be sealed.

[0008] Further preferably, the connecting seat is provided with a rotatable Y-shaped sliding frame, the Y-shaped sliding frame is provided with a slidable handle, the Y-shaped sliding frame is provided with a plurality of recessed portions, a connecting frame is fixed to the lower portion of the handle, the connecting frame is provided with a slidable limit block, and a second spring is sleeved on the limit block.

[0009] Further preferably, a guide ring is provided in the middle of the Y-shaped sliding frame, a plurality of sliding columns are distributed in a ring shape on the guide ring, a universal ball is connected to one end of the sliding column, and a third spring is sleeved on the sliding column.

[0010] Further preferably, a connecting ring is fixed on the first inner gear ring, and a ring light is fixed on the connecting ring.

[0011] Further preferably, brushes are staggeredly distributed on the bottom of the rotating shell.

[0012] Further preferably, an anti-sliding block for facilitating gripping is provided on the upper portion of the handle.

[0013] The beneficial effects of the present invention are: 1. After rotating the rotating shell and the inner shell by 90°, the raised arc-shaped part on the rotating shell no longer blocks the arc-shaped notch on the outer shell, and the opening at the bottom of the inner shell and the top of the flattening disc continue to fit with the inside of the outer shell to form a sealed cavity. The filter screens on both sides of the flattening disc and the inner shell will be exposed outside the outer shell. After the flattening disc is exposed, the dust generated by grinding enters the inner shell from the guide hole and the filter screen on the inner shell under the action of the dust collecting fan blades. The exposed part of the flattening disc can not only smooth the wall joints and the inner corners of the wall, but also the filter screens on both sides of the inner shell will not cause dust to fly due to the exposure of the flattening disc, affecting the cleanliness of the construction environment; 2. The rotation of the second transmission gear drives the third transmission gear and the third inner gear ring to rotate. The number of teeth of the third transmission gear is smaller than that of the second transmission gear, and the number of teeth of the second transmission gear is smaller than that of the third inner gear ring. After deceleration, the third inner gear ring drives the guide scraper to rotate to prevent dust from adhering to the inner walls of the outer shell and the inner shell. The guide scraper is spirally shaped and can guide the dust to be discharged upward along the guide scraper to prevent dust from accumulating inside the outer shell and the inner shell and affecting the dust collection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the first structure of the outer shell of the present invention; Figure 3 It is a schematic diagram of the second structure of the outer shell of the present invention; Figure 4 It is a structural cross-sectional view of the outer shell of the present invention; Figure 5 It is a structural explosion diagram of the outer shell of the present invention; Figure 6 This is a schematic diagram of the structure of the inner shell of the present invention (exposed state); Figure 7 It is a structural schematic diagram of the rotating shell of the present invention; Figure 8 It is a structural cross-sectional view of the inner shell of the present invention; Fig. 9 It is a structural cross-sectional view of the guide scraper of the present invention; Fig.10 It is a structural cross-sectional view of the Y-shaped sliding frame of the present invention.

[0015] In the figure: outer shell 1, brush 101, connecting seat 102, discharge pipe 103, servo motor 2, grinding disc 3, guide hole 301, protruding block 302, dust suction fan blade 4, rotating shell 5, guide block 6, fixing ring 7, first spring 8, positioning block 9, mounting ring 10, inner shell 11, filter screen 1101, mounting shaft 12, first transmission gear 13, first inner gear ring 14, second inner gear ring 15, mounting frame 16, second transmission gear 17, third transmission gear 18, third inner gear ring 19, guide scraper 20, handle 21, Y-shaped sliding frame 22, inner recess 2201, connecting frame 23, limit block 24, second spring 25, guide ring 26, sliding column 27, universal ball 2701, third spring 28, connecting ring 29, ring light 30. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] Reference Figures 1 to 10 A wall surface grinding device for building decoration construction comprises an outer shell 1, a brush 101 is distributed at the bottom of the outer shell 1, a connecting seat 102 is fixed symmetrically on the upper part of the outer shell 1, a discharge pipe 103 is fixed on the front side of the top of the outer shell 1, a servo motor 2 is fixed at the middle of the top of the outer shell 1, a power output shaft of the servo motor 2 passes through the outer shell 1, a grinding disc 3 is embedded and fixed at the lower end of the power output shaft of the servo motor 2, a plurality of guide holes 301 are opened on the grinding disc 3, and a plurality of protrusions 302 are distributed in an annular manner at the bottom, and the servo motor 2 A dust suction fan blade 4 is nested and fixed on the power output shaft, and the dust suction fan blade 4 is inside the outer shell 1 and located above the grinding disc 3. A rotatable rotating shell 5 is provided on the upper part of the outer shell 1, and the rotating shell 5 is sleeved on the lower part of the outer shell 1. A guide block 6 is diagonally fixed on the upper part of the outer shell 1, and a slidable fixing ring 7 is provided on the guide block 6. A raised column is diagonally provided on the fixing ring 7, and a first spring 8 is sleeved on the raised column. A plurality of positioning blocks 9 are distributed in an annular manner on the top of the rotating shell 5, and the recessed part on the top of the positioning block 9 fits with the raised column on the fixing ring 7.

[0018] Preferably, a mounting ring 10 is fixed to the inner wall of the outer shell 1, a rotatable inner shell 11 is arranged on the mounting ring 10, a filter screen 1101 is symmetrically arranged on the inner shell 11, a rotatable mounting shaft 12 is arranged on the rear side of the outer shell 1, the mounting shaft 12 penetrates the outer shell 1, a rotatable first transmission gear 13 is symmetrically arranged on the mounting shaft 12, a first inner gear ring 14 is fixed to the top of the rotating shell 5, a second inner gear ring 15 is fixed to the upper part of the inner wall of the inner shell 11, the first transmission gear 13 on the upper part of the mounting shaft 12 is meshed with the first inner gear ring 14, and the first transmission gear 13 on the lower part of the mounting shaft 12 is meshed with the second inner gear ring 15; During specific implementation, the rotating shell 5 is rotated, and the rotating shell 5 drives the first inner ring 14 to rotate. The first inner ring 14 is meshed with the first transmission gear 13 on the upper part of the mounting shaft 12. The first transmission gear 13 on the lower part of the mounting shaft 12 is meshed with the second inner ring 15. The second inner ring 15 is connected to the inner shell 11. When the rotating shell 5 rotates, it will drive the inner shell 11 to rotate along the mounting ring 10.

[0019] Preferably, a mounting frame 16 is fixed to the inner wall of the upper part of the outer shell 1, and a rotatable second transmission gear 17 is provided on the mounting frame 16. A third transmission gear 18 is nested and fixed on the power output shaft of the servo motor 2, and the second transmission gear 17 is meshed with the third transmission gear 18. A rotatable third inner gear ring 19 is provided in the middle of the outer shell 1, and the third inner gear ring 19 is meshed with the third transmission gear 18. A plurality of guide scrapers 20 are distributed in an annular manner on the third inner gear ring 19, and the guide scrapers 20 are spiral-shaped. During specific implementation, the second transmission gear 17 rotates to drive the third transmission gear 18 and the third inner ring gear 19 to rotate, and the third inner ring gear 19 drives the guide scraper 20 to rotate. The guide scraper 20 rotates to guide the dust entering the outer shell 1 and the inner shell 11, and the guide scraper 20 is spirally shaped to prevent dust from accumulating inside the outer shell 1 and the inner shell 11.

[0020] Preferably, the outer shell 1 is symmetrically provided with arc-shaped notches in front and back, and the rotating shell 5 is symmetrically provided with convex arc-shaped portions in front and back, and the convex arc-shaped portions on the rotating shell 5 are larger than the arc-shaped notches on the outer shell 1. The outer wall of the inner shell 11 fits with the inner wall of the outer shell 1 and the opening at the bottom of the inner shell 11 fits with the top of the flattening disk 3, so that the bottom opening of the outer shell 1 can be blocked; During specific implementation, the grinding disc 3 and the inner shell 11 are exposed, the raised arc portion on the rotating shell 5 covers the arc-shaped notch on the outer shell 1, and the opening at the bottom of the inner shell 11 continues to fit with the top of the grinding disc 3. The dust generated by grinding enters the interior of the outer shell 1 from the guide hole 301 and the filter 1101 on the inner shell 11.

[0021] Preferably, a rotatable Y-shaped sliding frame 22 is provided on the connecting seat 102, a slidable handle 21 is provided on the Y-shaped sliding frame 22, a plurality of inner recesses 2201 are provided on the Y-shaped sliding frame 22, a connecting frame 23 is fixed to the lower part of the handle 21, a slidable limit block 24 is provided on the connecting frame 23, and a second spring 25 is sleeved on the limit block 24; In specific implementation, when adjusting the length of the handle, lift the limit block 24 so that it slides along the connecting frame 23 and compresses the second spring 25 so that it no longer clamps the inner recess 2201 on the Y-shaped sliding frame 22, and then slide the handle 21 or the Y-shaped sliding frame 22. After the adjustment is completed, release the limit block 24. Under the resetting action of the second spring 25, the limit block 24 clamps the inner recess 2201 along the connecting frame 23.

[0022] Preferably, a guide ring 26 is provided in the middle of the Y-shaped sliding frame 22, and a plurality of sliding posts 27 are distributed in an annular manner on the guide ring 26, and a universal ball 2701 is connected to one end of the sliding post 27, and a third spring 28 is sleeved on the sliding post 27; During specific implementation, the vacuum hose is passed through the guide ring 26 and contacts the sliding column 27. When the sliding column 27 slides, the third spring 28 is stretched. Under the reset action of the third spring 28, the sliding column 27 and the universal ball 2701 are tightly attached to the vacuum hose to fix the vacuum hose.

[0023] Preferably, a connecting ring 29 is fixed on the first inner gear ring 14, and a ring light 30 is fixed on the connecting ring 29; During specific implementation, the ring light 30 is turned on to illuminate the wall surface, so as to illuminate the uneven and rough areas of the wall surface, thereby helping construction workers to adjust the flatness and smoothness of the wall surface.

[0024] Among them, brushes 101 are staggeredly distributed on the bottom of the rotating shell 5 .

[0025] The upper part of the handle 21 is provided with an anti-sliding block for easy gripping.

[0026] When the present invention is used, the sandpaper is mounted on the bottom surface of the flattening disc 3, the dust suction hose is inserted into the guide ring 26 and contacts the sliding column 27, the third spring 28 is stretched when the sliding column 27 slides, and the sliding column 27 and the universal ball 2701 are pressed against the dust suction hose under the reset action of the third spring 28, the dust suction hose is fixed and connected to the exhaust pipe 103, the ring light 30 is turned on and the servo motor 2 is started to drive the flattening disc 3, the dust suction blade 4 and the second transmission gear 17 to rotate, and the construction personnel hold the handle 21 tightly to press the flattening disc 3 against the wall surface and start to flatten the wall surface, and the second transmission gear 17 is turned on ... The rotation of the wheel 17 drives the third transmission gear 18 and the third inner gear ring 19 to rotate, and the third inner gear ring 19 drives the guide scraper 20 to rotate. The guide scraper 20 rotates to guide the dust entering the outer shell 1 and the inner shell 11. The guide scraper 20 is spirally shaped to prevent dust from accumulating inside the outer shell 1 and the inner shell 11. The opening at the bottom of the inner shell 11 fits with the top of the grinding plate 3, and the bottom opening of the outer shell 1 can be blocked. The dust generated by grinding is sucked into the outer shell 1 from the guide hole 301 under the action of the dust suction blade 4, and then discharged through the discharge pipe 103; When the length of the grip needs to be adjusted, the limit block 24 is lifted to slide along the connecting frame 23 and compress the second spring 25 so that it no longer clamps the inner concave portion 2201 on the Y-shaped sliding frame 22, and then the grip 21 or the Y-shaped sliding frame 22 is slid. After the adjustment is completed, the limit block 24 is released. Under the reset action of the second spring 25, the limit block 24 clamps the inner concave portion 2201 along the connecting frame 23. If it is necessary to smooth the wall joint or the inner corner of the wall, the staff will pull the fixing ring 7 to slide along the guide block 6 and compress the first spring 8. After the fixing ring 7 is pulled until it is no longer in contact with the positioning block 9, the rotating shell 5 is rotated. The rotation of the rotating shell 5 drives the first inner gear ring 14 to rotate. The first inner gear ring 14 is meshed with the first transmission gear 13 on the upper part of the installation shaft 12. The first transmission gear 13 on the lower part of the installation shaft 12 is meshed with the second inner gear ring 15. The second inner gear ring 15 is connected to the inner shell 11. When the rotating shell 5 rotates, it will drive The inner shell 11 rotates together. After the rotating shell 5 rotates 90°, the fixing ring 7 is loosened. Under the resetting action of the first spring 8, the fixing ring 7 contacts the positioning block 9 on the rotating shell 5 again to fix the rotating shell 5. At this time, the flattening disk 3 and the inner shell 11 are exposed, and the raised arc-shaped portion on the rotating shell 5 covers the arc-shaped notch on the outer shell 1. The opening at the bottom of the inner shell 11 continues to fit with the top of the flattening disk 3, and the dust generated by grinding enters the interior of the outer shell 1 from the guide hole 301 and the filter screen 1101 on the inner shell 11.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wall surface grinding device for building decoration construction, comprising an outer shell (1), a brush (101) is distributed at the bottom of the outer shell (1), a connecting seat (102) is fixed symmetrically on the upper part of the outer shell (1), a discharge pipe (103) is fixed on the front side of the top of the outer shell (1), a servo motor (2) is fixed at the middle of the top of the outer shell (1), a power output shaft of the servo motor (2) passes through the outer shell (1), a grinding disc (3) is embedded and fixed at the lower end of the power output shaft of the servo motor (2), a plurality of guide holes (301) are opened on the grinding disc (3) and a plurality of protrusions (302) are distributed in an annular manner at the bottom, a dust suction blade (4) is embedded and fixed on the power output shaft of the servo motor (2), and the dust suction blade (4) is inside the outer shell (1) and located above the grinding disc (3), characterized in that: A rotatable rotating shell (5) is provided on the upper part of the outer shell (1), and the rotating shell (5) is sleeved on the lower part of the outer shell (1). A guide block (6) is fixedly arranged diagonally on the upper part of the outer shell (1), and a slidable fixing ring (7) is provided on the guide block (6). A protruding column is provided diagonally on the fixing ring (7), and a first spring (8) is sleeved on the protruding column. A plurality of positioning blocks (9) are annularly arranged on the top of the rotating shell (5), and a recessed portion on the top of the positioning block (9) fits with the protruding column on the fixing ring (7).

2. A wall surface grinding device for building decoration construction according to claim 1, characterized in that: The outer shell (1) has a mounting ring (10) fixed on its inner wall, a rotatable inner shell (11) provided on the mounting ring (10), a filter screen (1101) symmetrically provided on the inner shell (11), a rotatable mounting shaft (12) at the rear side of the outer shell (1), the mounting shaft (12) passing through the outer shell (1), a rotatable first transmission gear (13) symmetrically provided on the mounting shaft (12) from top to bottom, a first inner gear ring (14) fixed on the top of the rotating shell (5), a second inner gear ring (15) fixed on the upper part of the inner wall of the inner shell (11), the first transmission gear (13) on the upper part of the mounting shaft (12) meshing with the first inner gear ring (14), and the first transmission gear (13) on the lower part of the mounting shaft (12) meshing with the second inner gear ring (15).

3. A wall surface grinding device for building decoration construction according to claim 2, characterized in that: A mounting frame (16) is fixed on the inner wall of the upper part of the outer shell (1), and a rotatable second transmission gear (17) is provided on the mounting frame (16). A third transmission gear (18) is nested and fixed on the power output shaft of the servo motor (2), and the second transmission gear (17) is meshed with the third transmission gear (18). A rotatable third inner gear ring (19) is provided in the middle part of the outer shell (1), and the third inner gear ring (19) is meshed with the third transmission gear (18). A plurality of guide scrapers (20) are distributed in an annular manner on the third inner gear ring (19), and the guide scrapers (20) are spiral-shaped.

4. A wall surface grinding device for building decoration construction according to claim 1, characterized in that: The outer shell (1) is symmetrically provided with arc-shaped notches at the front and rear ends, the rotating shell (5) is symmetrically provided with convex arc-shaped portions at the front and rear ends, the convex arc-shaped portions on the rotating shell (5) are larger than the arc-shaped notches on the outer shell (1), the outer wall of the inner shell (11) is in contact with the inner wall of the outer shell (1), and the opening at the bottom of the inner shell (11) is in contact with the top of the grinding disc (3), so that the bottom opening of the outer shell (1) can be blocked.

5. A wall surface grinding device for building decoration construction according to claim 1, characterized in that: The connecting seat (102) is provided with a rotatable Y-shaped sliding frame (22), the Y-shaped sliding frame (22) is provided with a slidable handle (21), the Y-shaped sliding frame (22) is provided with a plurality of inner recesses (2201), a connecting frame (23) is fixed to the lower part of the handle (21), a slidable limit block (24) is provided on the connecting frame (23), and a second spring (25) is sleeved on the limit block (24).

6. A wall surface grinding device for building decoration construction according to claim 5, characterized in that: A guide ring (26) is provided in the middle of the Y-shaped sliding frame (22), a plurality of sliding posts (27) are distributed in an annular manner on the guide ring (26), a universal ball (2701) is connected to one end of the sliding post (27), and a third spring (28) is sleeved on the sliding post (27).

7. A wall surface grinding device for building decoration construction according to claim 2, characterized in that: A connecting ring (29) is fixed on the first inner gear ring (14), and a ring light (30) is fixed on the connecting ring (29).

8. A wall surface grinding device for building decoration construction according to claim 1, characterized in that: Brushes (101) are staggeredly distributed on the bottom of the rotating shell (5).

9. A wall surface grinding device for building decoration construction according to claim 5, characterized in that: An anti-sliding block for facilitating gripping is provided on the upper portion of the grip (21).

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