External wall painting device for building construction and safe use method thereof

Abstract

The invention discloses an exterior wall painting device for building construction and a safe use method thereof, and relates to the technical field of exterior wall construction of houses, comprising a brush barrel, a connecting shaft is provided inside the brush barrel, a Z-shaped rod is provided on the outer wall of the connecting shaft, a handle is provided on the end of the Z-shaped rod, a cylinder body for storing paint is provided above the brush barrel, a feeding pipe connected to an external feeding device is provided on the outer wall of the cylinder body, a hose is provided at the other end of the cylinder body, a valve body is provided inside the hose, and the valve body is electrically connected to the feeding device, a fixed barrel is provided at one end of the hose, the fixed barrel is located above the end of the Z-shaped rod and fixedly connected thereto, a nozzle is provided inside the fixed barrel, and in this device, there is no need for an operator to frequently replace the brush barrel and the spray gun during the construction process, thereby reducing the labor intensity of the workers and improving the work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of building exterior wall construction, in particular to an exterior wall painting device for building construction and a safe use method thereof. Background Art

[0002] In the field of building construction, exterior wall painting is an extremely important process in building construction. Traditional exterior wall painting in building construction mainly relies on manpower. Although there are some auxiliary tools used, including paint stirrers, paint pumps, spray guns, etc., they still cannot fully meet the construction needs.

[0003] For example, when facing the narrow inner corner area of ​​the exterior wall, a spray gun is needed to spray it, which requires the operator to frequently replace the paint roller and the spray gun during the construction process, thereby greatly increasing the labor intensity of the workers and reducing work efficiency.

[0004] To this end, the present invention provides an exterior wall painting device for building construction and a safe use method thereof. Summary of the invention

[0005] The purpose of the present invention is to provide an exterior wall painting device for building construction and a safe use method thereof, so as to solve the problems raised in the above-mentioned background technology. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an exterior wall painting device for building construction, comprising a brush barrel, a connecting shaft is provided inside the brush barrel, a Z-shaped rod is provided on the outer wall of the connecting shaft, and a handle is provided at the end of the Z-shaped rod;

[0006] A barrel for storing paint is provided above the brush barrel, a feed pipe connected to an external feeding device is provided on the outer wall of the barrel, a hose is provided at the other end of the barrel, a valve body is provided inside the hose, and the valve body is electrically connected to the feeding device, a fixed barrel is provided at one end of the hose, the fixed barrel is located above the end of the Z-shaped rod and fixedly connected thereto, and a nozzle is provided inside the fixed barrel;

[0007] A shaft body 1 is arranged inside the cylinder, an impeller is arranged on the outer wall of the shaft body 1, the shaft body 1 passes through the cylinder and is rotatably connected thereto, a shaft body 2 is arranged at the end of the shaft body 1, the shaft body 2 is mutually transmitted with a connecting shaft through a belt drive wheel, a motor is arranged at the end of the connecting shaft, the connecting shaft is mutually connected with a motor shaft through a coupling, the brush cylinder slides freely in the lateral direction of the outer wall of the connecting shaft, and the connecting shaft drives the brush cylinder to rotate;

[0008] The outer wall of the cylinder is provided with two through grooves, the interior of the cylinder is provided with an arc plate for covering the through grooves, the outer wall of the second shaft is provided with a blanking unit for driving the arc plate to rotate along the inner wall of the cylinder, and the blanking unit replenishes paint on the outer wall of the brush cylinder during the rolling painting process of the brush cylinder.

[0009] Preferably, the blanking unit includes a connecting tube located on the outer wall of the second shaft body, the outer wall of the connecting tube is provided with a connecting strip, one side of the connecting strip is fixedly connected to the arc plate, the end of the connecting tube is provided with a flat gear and fixedly connected to the flat gear, the outside of the flat gear is provided with an arc-shaped ring body, a bending plate is provided above the arc-shaped ring body, the bottom of the bending plate is fixedly connected to the fixed tube, the inner walls at both ends of the arc-shaped ring body are provided with a plurality of tooth blocks meshing with the flat gear, the outer wall of the second shaft body is provided with an arc-shaped rod, the bottom end of the arc-shaped rod is provided with a sliding pad, the outer wall of the sliding pad is provided with a bending tube, one side of the bottom end of the bending tube is provided with an air pump and connected to the air pump, one side of the air pump is provided with a connecting plate, and the end of the connecting plate is fixedly connected to the Z-shaped rod.

[0010] Preferably, the end of the fixing cylinder has a plurality of magnetic parts, and the outer wall of the nozzle is provided with a magnet, and the magnet has a magnetic force that attracts the magnetic parts.

[0011] Preferably, the air pump has the functions of exhausting and inhaling air, and when the flat gear is displaced to the other end of the inner wall of the arc-shaped ring body, the arc-shaped plate inside the cylinder body will rotate and lose its covering of a through groove.

[0012] Preferably, the central area between the two through grooves and the central area of ​​the arc-shaped plate have a magnetic force that attracts each other, the outer diameter of the connecting tube is equal to the outer diameter of the shaft body one, and there is damping between the connecting tube and the shaft body two.

[0013] Preferably, a support frame is provided on the outer wall of the cylinder, and the bottom end of the support frame is fixedly connected to the connecting plate.

[0014] Preferably, the handle is provided with a plurality of switches, and the plurality of switches are used to control the start and stop of the air pump and the external feeding equipment.

[0015] Preferably, the interior of the handle includes two convex strips, and the two convex strips are symmetrically distributed up and down.

[0016] A method for safely using an exterior wall painting device for building construction comprises the following steps:

[0017] S1: After the wall paint is injected into the cylinder, the switch controls the external feeding equipment to inject air into the cylinder. At the same time, the valve body opens, allowing the paint to enter the fixed cylinder from the hose and spray out from the nozzle;

[0018] S2: When the brush barrel is pushed by the handle to paint the wall, the motor starts automatically, and the connecting shaft drives the brush barrel to rotate, thus assisting the rotation of the brush barrel;

[0019] S3: The connecting shaft drives the second shaft through the belt drive wheel, and the second shaft drives the first shaft at the end to rotate, and then drives the impeller inside the cylinder to rotate, so as to stir the paint in real time to ensure the uniformity of the wall during spraying and flat coating.

[0020] The present invention has at least the following beneficial effects:

[0021] 1. In the present invention, the material is fed into the cylinder through the feeding equipment, and the paint will be sprayed outward through the fixed cylinder and the nozzle. The sprayed paint will directly act on the inner corners and some narrow areas that are difficult to reach. At the same time, the motor will start automatically during the painting process, and drive its rotating shaft to rotate at a low speed according to the rated speed. The connecting shaft drives the shaft body one through the belt drive wheel to drive the impeller to stir the inside of the cylinder, ensuring that the idle paint inside the cylinder has good uniformity. At the same time, the connecting shaft driven by the motor will also drive the brush cylinder to rotate at a low speed, which adds a certain auxiliary effect to the thrust of the staff. Compared with the prior art, there is no need for the operator to frequently replace the brush cylinder and the spray gun during the construction process, which reduces the labor intensity of the workers and improves the work efficiency.

[0022] 2. In the present invention, when painting upward along the wall, an air pump can be used to inject air into the curved cylinder to drive the flat gear to slide inside the arc-shaped ring body until the arc-shaped rod pushes the flat gear to be located at the other end of the arc-shaped ring body. The flat gear meshes with the gear ring again to cause the arc-shaped plate to rotate and lose the shielding of one of the two through grooves. At this time, the position of the cylinder is also located above the cylinder close to the wall. The paint in the opened through groove will automatically fall to the outer wall of the brush cylinder, allowing the brush cylinder to automatically replenish the required paint during the rolling painting process, which not only reduces the time of frequent feeding and improves the painting work efficiency, but also the sufficient paint makes the wall painting more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a structural schematic diagram of another angle of the present invention;

[0025] Figure 3 For the present invention Figure 2 A magnified view of the structure of the middle A area;

[0026] Figure 4 It is a cross-sectional view of the blanking unit structure of the present invention;

[0027] Figure 5 For the present invention Figure 4 A magnified view of the structure of the middle B region;

[0028] Figure 6 For the present invention Figure 4 A magnified view of the structure of the middle C region;

[0029] Figure 7 It is a cross-sectional view of the bending tube structure of the present invention;

[0030] Figure 8 For the present invention Figure 7 A magnified view of the structure of the middle D region;

[0031] Fig. 9 For the present invention Figure 7 A magnified view of the structure of the middle E region;

[0032] Fig.10 For the present invention Figure 7 A magnified view of the structure of the middle F region;

[0033] Fig.11 It is a schematic diagram of the cylinder structure of the present invention;

[0034] Fig.12 It is a cross-sectional view of the cylinder structure of the present invention.

[0035] In the figure: 1-brush cylinder; 2-connecting shaft; 3-Z-shaped rod; 4-handle; 5-cylinder body; 6-feeding pipe; 7-hose; 8-valve body; 9-fixed cylinder; 10-nozzle; 11-axis body 1; 12-impeller; 13-axis body 2; 14-motor; 15-through groove; 16-arc plate; 17-blank unit; 18-connecting cylinder; 19-connecting strip; 20-flat gear; 21-arc ring body; 22-bending plate; 23-tooth block; 24-arc rod; 25-sliding pad; 26-bending cylinder; 27-air pump; 28-connecting plate; 29-magnetic part; 30-magnet; 31-support frame; 32-switch; 33-convex strip part. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-12 The present invention provides a technical solution: an exterior wall painting device for building construction, comprising:

[0038] Embodiment 1,

[0039] A brush barrel 1, wherein a connecting shaft 2 is provided inside the brush barrel 1, a Z-shaped rod 3 is provided on the outer wall of the connecting shaft 2, and a handle 4 is provided at the end of the Z-shaped rod 3 and fixedly connected thereto;

[0040] A barrel 5 for storing paint is provided above the brush barrel 1, and a feed pipe 6 connected to an external feeding device is provided on the outer wall of the barrel 5. The end of the feed pipe 6 is connected to the barrel 5, and a hose 7 is provided at the other end of the barrel 5 and connected to each other. A valve body 8 is provided inside the hose 7 and is fixedly connected to the valve body 8. The valve body 8 is electrically connected to the feeding device. When the external feeding device injects air into the barrel 5, the valve body 8 will automatically open by an electrical signal, so that the paint inside the hose 7 is in a circulating state; a fixed barrel 9 is provided at one end of the hose 7 and is connected to each other. The fixed barrel 9 is located above the end of the Z-shaped rod 3 and is fixedly connected to the Z-shaped rod 3. A nozzle 10 is provided inside the fixed barrel 9 and is rotatably connected to the Z-shaped rod 3. The nozzle 10 is L-shaped and has a sharp end that is gathered together, which is more conducive to spraying operations on narrow inner corner areas.

[0041] The end of the fixed cylinder 9 has a plurality of magnetic parts 29, the outer wall of the nozzle 10 is provided with a magnet 30 and fixedly connected thereto, the magnet 30 has a magnetic force that attracts the magnetic part 29, the handle 4 is provided with a plurality of switches 32 and fixedly connected thereto, the plurality of switches 32 are used to control the start and stop of the external feeding device, the interior of the handle 4 includes two convex strips 33, the two convex strips 33 are symmetrically distributed up and down, the staff can use the clamping effect of the two convex strips 33 inside the handle 4 to insert a longer rod-shaped object, so that the device has a larger painting range;

[0042] A shaft body 11 is provided inside the cylinder 5, an impeller 12 is provided on the outer wall of the shaft body 11 and fixedly connected thereto, the shaft body 11 passes through the cylinder 5 and is rotatably connected thereto, a shaft body 2 13 is provided at the end of the shaft body 11 and is fixedly connected thereto, the shaft body 2 13 is mutually transmitted with the connecting shaft 2 through a belt drive wheel, a motor 14 is provided at the end of the connecting shaft 2, the motor 14 is fixedly connected with the Z-shaped rod 3 through a fixing frame, the connecting shaft 2 is mutually connected with the rotating shaft of the motor 14 through a coupling, the brush cylinder 1 slides freely in the lateral direction of the outer wall of the connecting shaft 2, and the connecting shaft 2 drives the brush cylinder 1 to rotate;

[0043] When using this device to paint a normal flat wall, the staff can first hold the handle 4, stick the outer wall of the brush barrel 1 to the wall, and then push the brush barrel 1. At this time, the motor 14 will start automatically and drive its shaft to rotate at a low speed according to the rated speed. In this process, the connecting shaft 2 will drive the shaft body 2 13 and the shaft body 1 11 through the belt drive wheel to transmit, and then drive the impeller 12 on the outer wall of the shaft body 1 11 to stir inside the cylinder 5, ensuring that the idle paint inside the cylinder 5 has good uniformity in real time. At the same time, the connecting shaft 2 driven by the motor 14 will also drive the brush barrel 1 to rotate at a low speed, which adds a certain auxiliary effect to the thrust of the staff. Vice versa, the reverse rotation of the brush barrel 1 will also be the effect of the reversal of the motor 14, which will also reduce the burden of the staff's painting work and improve work efficiency.

[0044] When encountering a relatively narrow internal corner area, the staff can start the external feeding equipment through the switch 32, and at the same time open the valve body 8 in the hose 7 to feed the material into the cylinder 5. At this time, the paint inside the cylinder 5 will be transported to the inside of the hose 7 and sprayed to the outside through the fixed cylinder 9 and the nozzle 10. The sprayed paint will directly act on the internal corner and some narrow areas that are difficult to reach. The nozzle 10 can also be rotated to make the magnet 30 on the outer wall of the nozzle 10 and the different magnetic parts 29 of the fixed cylinder 9 adsorb each other, so that the end direction of the nozzle 10 is more changeable, which is suitable for narrow spraying areas at different angles. Compared with the prior art, there is no need for the operator to frequently replace the brush cylinder 1 and the spray gun during the construction process, which reduces the labor intensity of the workers and improves the work efficiency.

[0045] According to the above embodiment, embodiment 2,

[0046] The outer wall of the cylinder 5 is provided with two through grooves 15, and the interior of the cylinder 5 is provided with an arc plate 16 for shielding the through grooves 15. The outer wall of the second shaft 13 is provided with a blanking unit 17 for driving the arc plate 16 to rotate along the inner wall of the cylinder 5. The blanking unit 17 adaptively replenishes the paint on the outer wall of the brush cylinder 1 in two different painting trends of the brush cylinder 1 in the upward rolling and the downward rolling, so as to ensure that the surface of the brush cylinder 1 has sufficient paint supply in both painting methods;

[0047] The blanking unit 17 includes a connecting tube 18 located on the outer wall of the shaft body 13, the connecting tube 18 rotates relative to the shaft body 13 and is rotatably connected to the cylinder 5, the outer diameter of the connecting tube 18 is equal to the outer diameter of the shaft body 11, and there is damping between the connecting tube 18 and the shaft body 13, the outer wall of the connecting tube 18 is provided with a connecting strip 19 and is fixedly connected thereto, the overall shape of the connecting strip 19 is in the shape of a "mountain", one side of the connecting strip 19 is fixedly connected to the arc plate 16, the end of the connecting tube 18 is provided with a flat gear 20 and is fixedly connected thereto, and the outer side of the flat gear 20 is provided with an arc ring body 21 , the flat gear 20 slides freely inside the arc-shaped ring body 21, and the central area between the two through grooves 15 and the central area of ​​the arc-shaped plate 16 have a magnetic force of mutual attraction. When the flat gear 20 moves inside the arc-shaped ring body 21, the central area of ​​the arc-shaped plate 16 will be attracted to the central area between the two through grooves 15, so that the arc-shaped plate 16 will completely cover the two through grooves 15. At the same time, the damping between the connecting cylinder 18 and the second shaft is also greater than the friction force of the flat gear 20 sliding on the inner wall of the arc-shaped ring body 21. The double protection prevents the paint from leaking during the movement of the cylinder 5;

[0048] A bending plate 22 is provided above the arc-shaped ring body 21 and is fixedly connected thereto. The overall shape of the bending plate 22 is "L"-shaped. The bottom of the bending plate 22 is fixedly connected to the fixed cylinder 9. The inner walls of both ends of the arc-shaped ring body 21 are provided with a plurality of tooth blocks 23 that mesh with the flat gear 20. The outer wall of the shaft body 21 is provided with an arc-shaped rod 24 and is rotatably connected thereto. The bottom end of the arc-shaped rod 24 is provided with a sliding pad 25 and is fixedly connected thereto. The outer wall of the sliding pad 25 is provided with a bending cylinder 26. The sliding pad 25 can slide freely inside the bending cylinder 26. An air pump 27 is provided on one side of the bottom end of the bending cylinder 26 and is connected thereto. The switch 32 is connected to each other, and can also be used to control the start and stop of the air pump 27. A connecting plate 28 is provided on one side of the air pump 27 and is fixedly connected thereto. The end of the connecting plate 28 is fixedly connected to the Z-shaped rod 3, and the bending cylinder 26 is fixedly connected to the connecting plate 28. The outer wall of the cylinder 5 is provided with a support frame 31 for supporting it. The bottom end of the support frame 31 is fixedly connected to the connecting plate 28. The air pump 27 has the function of exhausting and inhaling air. When the flat gear 20 is displaced to the other end of the inner wall of the arc-shaped ring body 21, the arc-shaped plate 16 inside the cylinder 5 will rotate and lose the shielding of a through slot 15.

[0049] When using this device to paint upward along the wall, the staff can use the switch 32 to start the air pump 27 at the bottom of the connecting plate 28, so that the bottom end of the bending cylinder 26 is injected with air, thereby pushing the sliding pad 25 and the arc rod 24 to rise, and then driving the shaft body 21 and the flat gear 20 to slide inside the arc ring body 21. During this process, the flat gear 20 is separated from the original meshing effect of the tooth block 23, driving the connecting cylinder 18, the connecting strip 19 and the arc plate 16 to rotate, so that the arc plate 16 completely blocks the two through grooves 15, until the arc rod 24 pushes the flat gear 20 to be located at the other end of the arc ring body 21, and the flat gear 20 is meshed with the gear ring again, so that the connecting cylinder 18 drives the connecting cylinder 18 to move. The connecting strip 19 and the arc plate 16 rotate, and the rotating arc plate 16 will lose the cover of one of the two through grooves 15. At this time, the position of the cylinder 5 is also located above the cylinder 5 close to the wall, and the paint inside the opened through groove 15 will automatically fall to the outer wall of the brush cylinder 1; vice versa, when the brush cylinder 1 is painting downward, the flat gear 20 will move to the other end of the arc ring body 21 and open different through grooves 15 to continue to replenish the paint of the brush cylinder 1, so that the brush cylinder 1 can automatically replenish the required paint during the rolling painting process in different directions, which not only reduces the time of frequent feeding and improves the painting work efficiency, but also the sufficient paint makes the wall painting more uniform.

[0050] A method for safely using an exterior wall painting device for building construction comprises the following steps:

[0051] S1: After the wall paint is injected into the cylinder 5, the switch 32 is used to control the external feeding device to inject air into the cylinder 5, and at the same time the valve body 8 is opened, so that the paint enters the fixed cylinder 9 from the hose 7 and is sprayed out from the nozzle 10;

[0052] S2: When the brush barrel 1 is pushed by the handle 4 to whitewash the wall, the motor 14 starts automatically, and the connecting shaft 2 drives the brush barrel 1 to rotate, thereby assisting the rotation of the brush barrel 1;

[0053] S3: The connecting shaft 2 drives the shaft body 2 13 through the belt drive wheel, and the shaft body 2 13 drives the shaft body 1 1 at the end to rotate, and then drives the impeller 12 inside the cylinder 5 to rotate, so as to stir the paint in real time to ensure the uniformity of the wall surface during spraying and flat coating.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exterior wall painting device for building construction, comprising a brush barrel (1), a connecting shaft (2) being provided inside the brush barrel (1), a Z-shaped rod (3) being provided on the outer wall of the connecting shaft (2), and a handle (4) being provided at the end of the Z-shaped rod (3); Features: A barrel (5) for storing paint is provided above the brush barrel (1); a feed pipe (6) connected to an external feeding device is provided on the outer wall of the barrel (5); a hose (7) is provided at the other end of the barrel (5); a valve body (8) is provided inside the hose (7); the valve body (8) is electrically connected to the feeding device; a fixed barrel (9) is provided at one end of the hose (7); the fixed barrel (9) is located above the end of the Z-shaped rod (3) and is fixedly connected thereto; a nozzle (10) is provided inside the fixed barrel (9); A shaft body (11) is provided inside the cylinder (5), an impeller (12) is provided on the outer wall of the shaft body (11), the shaft body (11) passes through the cylinder (5) and is rotatably connected thereto, a shaft body (13) is provided at the end of the shaft body (11), the shaft body (13) and the connecting shaft (2) are mutually transmitted via a belt drive wheel, a motor (14) is provided at the end of the connecting shaft (2), the connecting shaft (2) and the rotating shaft of the motor (14) are mutually connected via a coupling, the brush cylinder (1) slides freely in the lateral direction of the outer wall of the connecting shaft (2), and the connecting shaft (2) drives the brush cylinder (1) to rotate; The outer wall of the cylinder (5) is provided with two through grooves (15), the interior of the cylinder (5) is provided with an arc plate (16) for shielding the through grooves (15), and the outer wall of the second shaft (13) is provided with a blanking unit (17) for driving the arc plate (16) to rotate along the inner wall of the cylinder (5), and the blanking unit (17) replenishes paint on the outer wall of the brush cylinder (1) during the rolling painting process of the brush cylinder (1).

2. The exterior wall painting device for building construction according to claim 1 is characterized in that: The blanking unit (17) comprises a connecting tube (18) located on the outer wall of the second shaft body (13); a connecting strip (19) is provided on the outer wall of the connecting tube (18); one side of the connecting strip (19) is fixedly connected to the arc plate (16); a flat gear (20) is provided at the end of the connecting tube (18) and is fixedly connected thereto; an arc-shaped ring body (21) is provided on the outside of the flat gear (20); a bending plate (22) is provided above the arc-shaped ring body (21); and the bottom of the bending plate (22) is fixedly connected to the fixing tube (9). The inner walls at both ends of the arc-shaped ring body (21) are provided with a plurality of tooth blocks (23) that mesh with the flat gear (20); the outer wall of the second shaft body (13) is provided with an arc-shaped rod (24); the bottom end of the arc-shaped rod (24) is provided with a sliding pad (25); the outer wall of the sliding pad (25) is provided with a bending cylinder (26); an air pump (27) is provided on one side of the bottom end of the bending cylinder (26) and is connected to the air pump (27); a connecting plate (28) is provided on one side of the air pump (27); the end of the connecting plate (28) is fixedly connected to the Z-shaped rod (3).

3. The exterior wall painting device for building construction according to claim 1 is characterized in that: The end of the fixed cylinder (9) has a plurality of magnetic parts (29), and the outer wall of the nozzle (10) is provided with a magnet (30), and the magnet (30) has a magnetic force that attracts the magnetic part (29).

4. The exterior wall painting device for building construction according to claim 2 is characterized in that: The air pump (27) has the functions of exhausting and inhaling air. When the flat gear (20) is displaced to the other end of the inner wall of the arc-shaped ring body (21), the arc-shaped plate (16) inside the cylinder (5) will rotate and lose the shielding of one through slot (15).

5. The exterior wall painting device for building construction according to claim 2 is characterized in that: The central area between the two through grooves (15) and the central area of ​​the arc plate (16) have a magnetic force that attracts each other, the outer diameter of the connecting tube (18) is equal to the outer diameter of the shaft body one (11), and there is damping between the connecting tube (18) and the shaft body two (13).

6. The exterior wall painting device for building construction according to claim 2 is characterized in that: A support frame (31) is provided on the outer wall of the cylinder (5), and the bottom end of the support frame (31) is fixedly connected to the connecting plate (28).

7. The exterior wall painting device for building construction according to claim 2 is characterized in that: The handle (4) is provided with a plurality of switches (32), and the plurality of switches (32) are used to control the start and stop of the air pump (27) and the external material feeding equipment.

8. The exterior wall painting device for building construction according to claim 7 is characterized in that: The handle (4) comprises two convex strips (33) inside, and the two convex strips (33) are symmetrically distributed up and down.

9. The safe use method of the exterior wall painting device for building construction according to claim 7 is characterized by: The following steps are included: S1: After the wall paint is injected into the cylinder (5), the switch (32) controls the external feeding device to inject air into the cylinder (5), and at the same time the valve body (8) is opened, so that the paint enters the interior of the fixed cylinder (9) from the hose (7) and is sprayed out from the nozzle (10); S2: When the brush barrel (1) is pushed by the hand-held handle (4) to whitewash the wall, the motor (14) starts automatically, and the connecting shaft (2) drives the brush barrel (1) to rotate, thereby assisting the rotation of the brush barrel (1); S3: The connecting shaft (2) drives the shaft body 2 (13) through the belt drive wheel, and the shaft body 2 (13) drives the shaft body 1 (11) at the end to rotate, thereby driving the impeller (12) inside the cylinder (5) to rotate, so as to stir the paint in real time and ensure the uniformity of the wall surface during spraying and flat coating.

Images