CN219316319U - Wall painting device for building decoration - Google Patents

Abstract

The utility model relates to the technical field of wall painting equipment, in particular to a wall painting device for building decoration, which comprises a support frame, wherein a suction and exhaust assembly, a stirring assembly, a moving assembly and a painting assembly are arranged on the support frame, the painting assembly is arranged on the moving assembly, the suction and exhaust assembly and the stirring assembly are arranged on one side of the support frame, which is close to the moving assembly, the suction and exhaust assembly is connected with the stirring assembly, the moving assembly comprises a horizontal moving assembly and a vertical moving assembly, the horizontal moving assembly and the vertical moving assembly are vertically arranged, the vertical moving assembly is vertical to the surface of the support frame, the painting assembly comprises an air cylinder, an angle adjusting part, a switching part and a roller part, a telescopic rod of the air cylinder is fixedly connected with the angle adjusting part, the roller part is in sliding connection with the switching part, and the switching part is connected with the angle adjusting part. According to the utility model, the vertically arranged moving assembly can enable the paint brushing assembly to move horizontally and vertically, and the paint brushing work is more efficient by matching with the rotatable roller.

Description

Wall painting device for building decoration

Technical Field

The utility model relates to the technical field of wall painting equipment, in particular to a wall painting device for building decoration.

Background

In the building construction process, when decorating house decoration, sometimes need brush one deck paint to the wall, play the effect to wall beautify and decorate and protect, and present building wall mopping mode adopts artifical brush, and paint brush efficiency is lower, and simultaneously paint brush the brushing quality to paint stirring inadequately easily before brushing.

Patent document with publication number CN110984525a discloses an indoor wall painting device based on screw rod movement, comprising a driving assembly, a moving assembly and a painting assembly; the driving assembly comprises a servo motor, a first rotating shaft, a first bevel gear and a bearing seat; the moving assembly comprises a screw rod, a two-number bevel gear, a moving nut, a guide rod and a connecting rod; the paint brushing assembly comprises a shell, a roller, a sponge layer and a paint guiding tube; the servo motor is controlled to periodically rotate positively and negatively to realize the up-and-down movement of the movable nut, so that the connecting rod drives the paint brushing assembly to move up and down, the right part of the roller props against the wall surface, the roller automatically rotates when the paint brushing assembly moves up and down, a sponge layer with paint contacts with the wall to brush paint, the pumping assembly is further arranged, and the paint is sucked from the paint barrel and conveyed from the piston barrel to the paint feeding cavity by rotating the first rotating shaft; the second rotating shaft is utilized to rotate, the third rotating shaft is enabled to rotate, the spiral blades enable paint at the bottom to flow upwards, and the stirring rod stirs the paint, so that the paint is uniform. Although this patent can paint automatically, the cylinder can paint from top to bottom, still needs the manual work to frequently remove the dolly and just can paint the work to the wall of both sides to the unable rotation angle of cylinder can not realize the reciprocal painting operation of horizontal direction, and the limitation is great during the painting, and the stirring rod of agitator can't play the effect of scraping paint to the bucket inner wall simultaneously, leads to appearing partial paint adhesion and makes the insufficient problem of paint stirring on the agitator inner wall.

Disclosure of Invention

The utility model mainly aims to provide a wall surface painting device for building decoration, which can effectively solve the problems.

The utility model provides a wall surface painting device for building decoration, which comprises a support frame, wherein a suction and exhaust component, a stirring component, a moving component and a painting component are arranged on the support frame;

the movable assembly comprises a horizontal movable assembly and a vertical movable assembly, the horizontal movable assembly and the vertical movable assembly are vertically arranged, the vertical movable assembly is vertical to the surface of the support frame, a first sliding block is slidably arranged on the horizontal movable assembly, the vertical movable assembly is arranged on the first sliding block, and a second sliding block is slidably arranged on the vertical movable assembly;

the paint brushing assembly is arranged on one side face of the second sliding block and comprises a cylinder, an angle adjusting part, a switching part and a roller part, the roller part is in sliding connection with the switching part, a telescopic rod of the cylinder is connected with the angle adjusting part, the angle adjusting part comprises a third bevel gear and a fourth bevel gear, the third bevel gear is in meshed transmission connection with the fourth bevel gear, and the switching part is connected with the angle adjusting part through the fourth bevel gear.

Further, the angle adjusting part further comprises a first connecting plate, the first connecting plate is fixedly connected with the telescopic rod of the air cylinder, a fourth motor is arranged on the first connecting plate, the third bevel gear is fixedly arranged on the output shaft of the fourth motor, the fourth bevel gear is rotatably arranged on the first connecting plate through a rotating shaft, and one end of the fourth bevel gear is fixedly connected with the switching part through the rotating shaft.

Further, the spout has been seted up to the inside spout of switching portion, be equipped with two springs in the spout, cylinder portion one end is equipped with the second connecting plate, second connecting plate sliding connection is in the spout, two spring one end and spout inner wall fixed connection, the other end and second connecting plate fixed connection, be equipped with the inductor on the spout is inside, the inductor is established between two springs.

Further, the horizontal movement assembly comprises a first screw rod, the first screw rod is rotationally connected to the horizontal movement assembly, a first guide rail is fixedly arranged on the horizontal movement assembly, the first guide rail is arranged in parallel with the first screw rod, a first sliding block is connected to the first guide rail in a sliding mode, the first sliding block is sleeved on the first screw rod, and the first screw rod is matched with the first sliding block through threads.

Further, the vertical moving assembly comprises two supporting plates, a second screw rod and a second guide rail, one supporting plate is arranged at the lower end of the vertical moving assembly and fixedly connected with the first sliding block, the other supporting plate is arranged at the upper end of the vertical moving assembly, the second screw rod is rotationally connected between the two supporting plates, the second guide rail is fixedly arranged between the two supporting plates, the second sliding block is slidingly connected onto the second guide rail, the second sliding block is sleeved on the second screw rod, the second screw rod is matched with the second sliding block through threads, and the air cylinder is fixedly connected to one side of the second sliding block.

Further, the stirring assembly comprises a first motor, a stirring barrel and a stirring part, wherein the first motor is arranged inside the supporting frame and is in transmission connection with the stirring part, the stirring part is rotationally arranged in the stirring barrel, the stirring part comprises a driving shaft, a scraping rod in a shape of a Chinese character 'kou' is fixedly arranged on the driving shaft, and a plurality of groups of blades are arranged on the driving shaft.

Further, the pump drainage assembly comprises a piston barrel, a piston, a sleeve rod and a crank, wherein the stirring barrel is communicated with the piston barrel through a pipeline, the crank is rotationally connected with the supporting frame, one end of the piston is arranged in the piston barrel, the other end of the piston is hinged with one end of the sleeve rod, the other end of the sleeve rod is rotationally connected with the crank, and the first motor is in transmission connection with the crank through a bevel gear structure.

Further, the upper rotary part of the roller is connected with a roller, the lower part of the roller is provided with a paint receiving groove, one side of the roller is provided with a paint inlet, the paint inlet is connected with the piston barrel through a pipeline, the lower part of the paint receiving groove is fixedly provided with a paint collecting piece, and the paint collecting piece is communicated with the stirring barrel through a pipeline.

Further, the roller comprises a shell and a sponge layer, the shell is hollow, a plurality of paint guide holes are formed in the surface of the shell in a penetrating mode, and the sponge layer is fixedly sleeved on the shell.

Further, a second one-way valve for controlling the paint to flow to the piston barrel is arranged in a pipeline connected with the stirring barrel, a connector is arranged on one side, far away from the crank, of the piston barrel, the connector is connected with a paint inlet through the pipeline, and a first one-way valve for controlling the paint to flow to the paint inlet is arranged on the connector.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the horizontal moving assembly and the vertical moving assembly are vertically arranged, when horizontal painting is performed, the roller vertically moves the horizontal moving assembly, the first sliding block horizontally moves on the first guide rail to perform horizontal painting, each time one row of the horizontal painting is performed, the vertical moving assembly vertically moves a distance of one roller, the horizontal moving assembly continuously moves to paint the next row, when vertical painting is performed, the roller vertically moves the vertical moving assembly through a bevel gear structure of the angle adjusting part, the second sliding block vertically moves on the second guide rail to perform vertical painting work, each time one row of the horizontal painting is performed, the horizontal moving guide rail horizontally moves a distance of one roller, the vertical moving assembly continuously moves to paint the next row, the painting range is enlarged, and the frequency of the manual moving trolley is reduced.

2. According to the stirring device, the stirring part is provided with the square scraping rod, so that the stirring effect is achieved, the scraping rod rotates along the inner wall of the stirring barrel, and paint adhered on the inner wall can be scraped off, and a better stirring effect is achieved.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a support frame according to the present utility model;

FIG. 3 is a schematic diagram of the connection of a piston barrel and a stirring barrel according to the present utility model;

FIG. 4 is a cross-sectional view of a pump assembly according to the present utility model;

FIG. 5 is a cross-sectional view of a stirring assembly according to the present utility model;

FIG. 6 is a schematic view of the structure of the stirring part of the present utility model;

FIG. 7 is a cross-sectional view of the drive and driven shafts of the present utility model;

FIG. 8 is a schematic diagram of a mobile assembly according to the present utility model;

FIG. 9 is an enlarged view of FIG. 8 at A;

FIG. 10 is a schematic view of the structure of the paint brush assembly of the present utility model;

FIG. 11 is a schematic view of the structure of FIG. 10 from another perspective;

FIG. 12 is a cross-sectional view of a cylinder according to the present utility model;

FIG. 13 is a cross-sectional view of a drum portion of the present utility model.

1. A support frame; 11. a base; 12. a handle; 2. a pumping assembly; 20. a piston barrel; 201. a joint; 21. a first one-way valve; 22. a piston; 23. a sleeve rod; 24. a bell crank; 241. a first bevel gear; 25. a support base; 3. a stirring assembly; 30. a stirring barrel; 31. a second one-way valve; 32. a driving shaft; 321. a first gear; 33. a blade; 34. a scraping rod; 35. a first motor; 36. a transmission belt; 37. a driven shaft; 371. a second gear; 372. a second bevel gear; 4. a moving assembly; 41. a horizontal movement assembly; 410. a second motor; 411. a first screw rod; 412. a first slider; 413. a first guide rail; 42. a vertical movement assembly; 420. a third motor; 421. a support plate; 422. a second screw rod; 423. a second guide rail; 424. a second slider; 4241. a guide rail groove; 5. a paint component; 51. a cylinder; 52. an angle adjusting section; 521. a fourth motor; 522. a third bevel gear; 523. a fourth bevel gear; 524. a first connection plate; 53. a switching part; 531. a spring; 532. an inductor; 533. a chute; 54. a roller section; 541. a roller; 5411. a housing; 5412. a paint guiding hole; 5413. a sponge layer; 5414. a paint inlet; 542. a paint receiving groove; 543. a paint collecting piece; 544. and a second connecting plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Specific embodiments are shown in fig. 1-13: the utility model provides a wall painting device for building decoration, including support frame 1, be provided with pump drainage subassembly 2, stirring subassembly 3, remove subassembly 4 and mopping subassembly 5 on the support frame 1, remove subassembly 4 and be located in support frame 1 one end, mopping subassembly 5 sets up on remove subassembly 4, stirring subassembly 3 sets up on support frame 1 and is close to one side of removing subassembly 4, pump drainage subassembly 2 sets up on support frame 1 and is close to one side of stirring subassembly 3, pump drainage subassembly 2 is connected with stirring subassembly 3;

the moving assembly 4 comprises a horizontal moving assembly 41 and a vertical moving assembly 42, the horizontal moving assembly 41 and the vertical moving assembly 42 are vertically arranged, the vertical moving assembly 42 is perpendicular to the surface of the supporting frame 1, a first sliding block 412 is arranged on the horizontal moving assembly 41 in a sliding mode, the vertical moving assembly 42 is arranged on the first sliding block 412, and a second sliding block 424 is arranged on the vertical moving assembly 42 in a sliding mode.

The paint brushing assembly 5 is arranged on one side surface of the second slider 424, the paint brushing assembly 5 comprises an air cylinder 51, an angle adjusting part 52, a switching part 53 and a roller part 54, the roller part 54 is in sliding connection with the switching part 53, a telescopic rod of the air cylinder 51 is fixedly connected with the angle adjusting part 52, the angle adjusting part 52 comprises a third bevel gear 522 and a fourth bevel gear 523, the third bevel gear 522 is in meshed transmission connection with the fourth bevel gear 523, and the switching part 53 is connected with the angle adjusting part 52 through the fourth bevel gear 523.

Further, the angle adjusting portion 52 further includes a first connecting plate 524, the first connecting plate 524 is fixedly connected with the telescopic rod of the air cylinder 51, the first connecting plate 524 is provided with a fourth motor 521, the third bevel gear 522 is fixedly arranged on the output shaft of the fourth motor 521, the fourth bevel gear 523 is rotatably arranged on the first connecting plate 524 through a rotating shaft, and one end of the fourth bevel gear 523 is fixedly connected with the adapting portion 53 through the rotating shaft. Two bevel gears are arranged in the painting assembly 5, and the roller 541 can rotate through meshing transmission between the bevel gears to adjust the angle, so that limitation of the roller 541 in the painting process is reduced, and the painting process is more flexible.

Further, a chute 533 is formed in the adapting portion 53, two springs 531 are disposed in the chute 533, a second connecting plate 544 is disposed at one end of the roller portion 54, the second connecting plate 544 is slidably connected in the chute 533, one end of the two springs 531 is fixedly connected with the inner wall of the chute 533, the other end of the two springs 531 is fixedly connected with the second connecting plate 544, an inductor 532 is disposed in the chute 533, the inductor 532 is preferably a pressure sensor, and the inductor 532 is disposed between the two springs 531.

Further, a roller 541 is rotatably connected to the roller portion 54, a paint receiving groove 542 is formed in the lower portion of the roller 541, a paint inlet 5414 is formed in one side of the roller 541, the paint inlet 5414 is connected to the piston barrel 20 through a pipe, and a paint collecting member 543 is fixedly arranged in the lower portion of the paint receiving groove 542, and the paint collecting member 543 is communicated with the stirring barrel 30 through a pipe.

Further, the roller 541 includes a casing 5411 and a sponge layer 5413, the casing 5411 is hollow, the surface of the casing 5411 is provided with a plurality of paint guiding holes 5412 in a penetrating manner, the sponge layer 5413 is fixedly sleeved on the casing 5411, the paint guiding holes 5412 can uniformly soak the sponge layer 5413 with paint, a paint collecting piece 543 is fixedly arranged at the lower part of the paint receiving groove 542, and the paint collecting piece 543 can collect excessive overflowed paint, and the paint collecting piece 543 is communicated with the stirring barrel 30 through a pipeline.

Further, stirring subassembly 3 includes first motor 35, agitator 30 and stirring portion, and first motor 35 is connected with stirring portion transmission, and stirring portion rotates and sets up in agitator 30, and stirring portion includes driving shaft 32, and the last fixed mouth word form of being equipped with of driving shaft 32 scrapes pole 34, is equipped with multiunit blade 33 on the driving shaft 32, and the stirring portion sets up mouth word form scrape pole 34, not only plays the effect of stirring, scrapes pole 34 and rotates along the agitator 30 inner wall, can also scrape the paint vehicle of adhesion on the inner wall, reaches better stirring effect.

Further, the pumping unit 2 comprises a piston barrel 20, a piston 22, a sleeve rod 23, a crank 24 and supporting seats 25, wherein two supporting seats 25 are arranged, the crank 24 is arranged between the two supporting seats 25, the crank 24 is rotationally connected with the supporting seats 25, one end of the piston 22 is arranged in the piston barrel 20, the other end of the piston 22 is hinged with the sleeve rod 23, and the other end of the sleeve rod 23 is rotationally connected with the crank 24.

Further, a base 11 is arranged on the support frame 1, a driven shaft 37 is rotationally arranged on the base 11, the driven shaft 37 is in transmission connection with the driving shaft 32, the first motor 35 is fixedly arranged inside the base 11, and the lower end of the driving shaft 32 is in transmission connection with the first motor 35.

Further, a second bevel gear 372 is fixedly arranged at the upper end of the driven shaft 37, a first bevel gear 241 is fixedly arranged at one end of the crank 24, the second bevel gear 372 is meshed with the first bevel gear 241 for transmission, a second gear 371 is fixedly arranged in the middle of the driven shaft 37, a first gear 321 is fixedly arranged at the lower end of the driving shaft 32, and a transmission belt 36 is connected to the first gear 321 and the second gear 371 in a rolling manner.

Further, a second one-way valve 31 for controlling the paint to flow to the piston barrel 20 is arranged in a pipeline connecting the piston barrel 20 and the stirring barrel 30, a connector 201 is arranged on one side, far away from the crank 24, of the piston barrel 20, the connector 201 is connected with the paint inlet 5414 through the pipeline, and a first one-way valve 21 for controlling the paint to flow to the paint inlet 5414 is arranged on the connector 201.

Further, the horizontal moving assembly 41 includes a first screw rod 411 and a first guide rail 413, the first screw rod 411 is rotatably connected to the horizontal moving assembly 41, the first guide rail 413 is parallel to the first screw rod 411, a first slider 412 is slidably connected to the first guide rail 413, and the first slider 412 is sleeved on the first screw rod 411.

Further, the vertical moving assembly 42 includes two support plates 421, a second screw 422 and a second guide rail 423, wherein one support plate 421 is disposed at the lower end of the vertical moving assembly 42 and fixedly connected with the first slider 412, the other support plate 421 is disposed at the upper end of the vertical moving assembly 42, the second screw 422 is rotatably connected between the two support plates 421, the second guide rail 423 is fixedly disposed between the two support plates 421, a second slider 424 is slidably connected to the second guide rail 423, the second slider 424 is sleeved on the second screw 422, and the air cylinder 51 is fixedly connected to one side of the second slider 424.

Further, the first screw rod 411 is in threaded fit with the first slider 412, one end of the first screw rod 411 is provided with the second motor 410, the first screw rod 411 is in transmission connection with the second motor 410, the second screw rod 422 is in threaded fit with the second slider 424, the upper end of the second screw rod 422 is provided with the third motor 420, and the second screw rod 422 is in transmission connection with the third motor 420.

Further, two sides of the second slider 424 are provided with a rail groove 4241, and the rail groove 4241 is slidably connected with the second rail 423 in a matching manner.

Further, the side of the support frame 1 far away from the moving component 4 is provided with a handle 12, so that the support frame 1 can be conveniently pushed to move.

When the wall surface painting device for building decoration is used, when horizontal painting operation is needed, the fourth motor 521 is started firstly, the third bevel gear 522 is rotated to drive the fourth bevel gear 523 to rotate, the roller 541 is adjusted to an angle to enable the roller 541 to be perpendicular to the horizontal moving component 41, the handle 12 of the support frame 1 is pushed to push the support frame 1 to the vicinity of the wall surface to be painted, the air cylinder 51 is opened, the telescopic rod of the air cylinder 51 is extended, the roller 541 is abutted against the wall surface, at the moment, the spring 531 is pressed and contracted, after the sensor 532 receives the induction from the spring 531, the first motor 35 is started, the cover of the stirring barrel 30 is opened to add the needed paint into the stirring barrel 30, the driving shaft 32 is rotated to drive the blade 33 and the scraping rod 34 in the stirring barrel 30 to stir the paint in the stirring barrel 30, the paint is uniformly mixed, and simultaneously the scraping rod 34 can scrape the paint adhered on the inner wall of the stirring barrel 30, the mixing effect is enhanced, at the same time, the driving shaft 32 rotates to drive the first gear 321 to rotate, the second gear 371 rotates and drives the driven shaft 37 to rotate under the transmission of the transmission belt 36, the second bevel gear 372 at the upper end of the driven shaft 37 rotates, the first bevel gear 241 meshed with the second bevel gear 372 rotates, the crank 24 rotates on the supporting seat 25, the piston 22 moves back and forth in the piston barrel 20 through the sleeve rod 23, the first one-way valve 21 and the second one-way valve 31 are matched, the paint is sucked from the stirring barrel 30, and then the paint is conveyed from the piston barrel 20 to the paint inlet 5414, the phenomenon that the paint frequently dips is avoided, the paint flows out from the joint 201, flows into the paint inlet 5414 from the pipeline and enters the roller 541 through the first one-way valve 21, the paint flows out of the uniform impregnated sponge layer 5413 from the paint guide hole 5412, the second motor 410 is started to drive the first screw 411 to rotate, the first slider 412 is horizontally slid on the first guide rail 413 to drive the roller 541 to horizontally paint, the second motor 410 is turned off every time one line is painted, the third motor 420 is started to drive the second screw rod 422 to rotate, the second slider 424 is vertically moved along the second guide rail 423 by the distance of one roller 541, at this time, the third motor 420 is turned off, the second motor 410 is started to move the first slider 412 again to enable the roller 541 to continue horizontal painting operation, when vertical painting operation is required, the fourth motor 521 is started to enable the third bevel gear 522 to rotate, the fourth bevel gear 523 to rotate, the roller 541 is adjusted in angle to enable the roller 541 to be perpendicular to the vertical moving assembly 42, at this time, the third motor 420 is started to drive the second screw rod 422 to rotate, the second slider 424 is made to slide vertically on the second guide rail 423 to drive the roller 541 to paint vertically, after each row is painted, the third motor 420 is turned off, the second motor 410 is started to drive the first screw rod 411 to rotate, the first slider 412 is made to move horizontally along the first guide rail 413 by the distance of one roller 541, at this time, the second motor 410 is turned off, the third motor 420 is started to make the second slider 424 move again, the roller 541 continues to paint vertically, the arrangement can realize the painting work in different directions, excessive paint in the roller 541 flows out through the sponge layer 5413 and falls into the paint receiving groove 542, and flows into the stirring barrel 30 again from the pipeline through the collection piece 543, so that automatic recovery is realized. In this setting, the wall painting device for building decoration is in the connection, sets up horizontal migration subassembly 41 and vertical migration subassembly 42 perpendicularly, can make the mopping subassembly 5 not only can horizontal migration, can also vertical migration, has enlarged the mopping scope, has reduced the frequency of manual mobile trolley.

It should be noted that the wall painting device for building decoration further includes a controller, and the controller is connected to the first motor 35, the second motor 410 and the third motor 420, and is connected to the sensor 532, so as to receive the sensing signal of 532 and control the actions of each motor to perform the painting operation.

Claims (9)

1. The utility model provides a wall painting device for building decoration which characterized in that: the novel stirring device comprises a support frame (1), wherein a pumping assembly (2), a stirring assembly (3), a moving assembly (4) and a mopping assembly (5) are arranged on the support frame (1), the moving assembly (4) is positioned at one end of the support frame (1), the mopping assembly (5) is arranged on the moving assembly (4), the stirring assembly (3) is arranged on one side, close to the moving assembly (4), of the support frame (1), the pumping assembly (2) is arranged on one side, close to the stirring assembly (3), of the support frame (1), and the pumping assembly (2) is connected with the stirring assembly (3).

The movable assembly (4) comprises a horizontal movable assembly (41) and a vertical movable assembly (42), the horizontal movable assembly (41) and the vertical movable assembly (42) are vertically arranged, the vertical movable assembly (42) is vertical to the surface of the support frame (1), a first sliding block (412) is slidably arranged on the horizontal movable assembly (41), the vertical movable assembly (42) is arranged on the first sliding block (412), and a second sliding block (424) is slidably arranged on the vertical movable assembly (42);

the paint brushing assembly (5) is arranged on one side face of the second sliding block (424), the paint brushing assembly (5) comprises an air cylinder (51), an angle adjusting part (52), a switching part (53) and a roller part (54), the roller part (54) is in sliding connection with the switching part (53), a telescopic rod of the air cylinder (51) is connected with the angle adjusting part (52), the angle adjusting part (52) comprises a third bevel gear (522) and a fourth bevel gear (523), the third bevel gear (522) is in meshed transmission connection with the fourth bevel gear (523), and the switching part (53) is connected with the angle adjusting part (52) through the fourth bevel gear (523);

the stirring assembly (3) comprises a first motor (35), a stirring barrel (30) and a stirring part, wherein the first motor (35) is arranged inside the supporting frame (1), the first motor (35) is connected with the stirring part in a transmission manner, the stirring part is rotationally arranged in the stirring barrel (30), the stirring part comprises a driving shaft (32), a scraping rod (34) in a shape like a Chinese character 'kou' is fixedly arranged on the driving shaft (32), and a plurality of groups of blades (33) are arranged on the driving shaft (32).

2. A wall painting device for building decoration according to claim 1, characterized in that: the angle adjusting part (52) further comprises a first connecting plate (524), the first connecting plate (524) is fixedly connected with a telescopic rod of the air cylinder (51), a fourth motor (521) is arranged on the first connecting plate (524), the third bevel gear (522) is fixedly arranged on an output shaft of the fourth motor (521), the fourth bevel gear (523) is rotatably arranged on the first connecting plate (524) through a rotating shaft, and one end of the fourth bevel gear (523) is fixedly connected with the switching part (53) through the rotating shaft.

3. A wall painting device for building decoration according to claim 2, characterized in that: the utility model discloses a roller device, including switching portion (53), cylinder portion (54), spout (533), cylinder portion (533), connecting plate (532) are equipped with two springs (531) in the inside spout (533) of having seted up of switching portion (53), cylinder portion (54) one end is equipped with second connecting plate (544), second connecting plate (544) sliding connection is in spout (533), two spring (531) one end and spout (533) inner wall fixed connection, the other end and second connecting plate (544) fixed connection, spout (533) are inside to be equipped with inductor (532), inductor (532) are established between two springs (531).

4. A wall painting device for building decoration according to claim 3, characterized in that: the horizontal movement assembly (41) comprises a first screw rod (411), the first screw rod (411) is rotationally connected to the horizontal movement assembly (41), a first guide rail (413) is fixedly arranged on the horizontal movement assembly (41), the first guide rail (413) is arranged in parallel with the first screw rod (411), a first sliding block (412) is connected to the first guide rail (413) in a sliding mode, the first sliding block (412) is sleeved on the first screw rod (411), and the first screw rod (411) is matched with the first sliding block (412) through threads.

5. The wall painting device for building decoration according to claim 4, wherein: the vertical movement assembly (42) comprises two support plates (421), a second screw rod (422) and a second guide rail (423), wherein one support plate (421) is arranged at the lower end of the vertical movement assembly (42) and fixedly connected with a first sliding block (412), the other support plate (421) is arranged at the upper end of the vertical movement assembly (42), the second screw rod (422) is rotationally connected between the two support plates (421), the second guide rail (423) is fixedly arranged between the two support plates (421), the second sliding block (424) is connected to the second guide rail (423) in a sliding manner, the second sliding block (424) is sleeved on the second screw rod (422), the second screw rod (422) is in threaded fit with the second sliding block (424), and the air cylinder (51) is fixedly connected to one side of the second sliding block (424).

6. The wall painting device for building decoration according to claim 5, wherein: the pumping unit (2) comprises a piston barrel (20), a piston (22), a sleeve rod (23) and a crank (24), wherein the stirring barrel (30) is communicated with the piston barrel (20) through a pipeline, the crank (24) is rotationally connected with a supporting frame (1), one end of the piston (22) is arranged in the piston barrel (20), the other end of the piston (22) is hinged with one end of the sleeve rod (23), the other end of the sleeve rod (23) is rotationally connected with the crank (24), and a first motor (35) is in transmission connection with the crank (24) through a bevel gear structure.

7. The wall painting device for building decoration according to claim 6, wherein: the rotary type paint collecting device is characterized in that a roller (541) is rotationally connected to the roller portion (54), a paint collecting groove (542) is formed in the lower portion of the roller (541), a paint inlet (5414) is formed in one side of the roller (541), the paint inlet (5414) is connected with the piston barrel (20) through a pipeline, a paint collecting piece (543) is fixedly arranged on the lower portion of the paint collecting groove (542), and the paint collecting piece (543) is communicated with the stirring barrel (30) through a pipeline.

8. The wall painting device for building decoration according to claim 7, wherein: the roller (541) comprises a shell (5411) and a sponge layer (5413), the interior of the shell (5411) is hollow, a plurality of paint guide holes (5412) are formed in the surface of the shell (5411) in a penetrating mode, and the sponge layer (5413) is fixedly sleeved on the shell (5411).

9. The wall painting device for building decoration according to claim 8, wherein: the utility model discloses a paint spraying device, including piston bucket (20), agitator (30), piston bucket (20), pipeline that is connected is equipped with second check valve (31) of control paint flow direction piston bucket (20) in, one side that keeps away from crank (24) on piston bucket (20) is equipped with connects (201), connect (201) to be connected with paint inlet (5414) through the pipeline, be equipped with first check valve (21) of control paint flow direction paint inlet (5414) on connect (201).

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