Paint brushing device for indoor top plate decoration

Abstract

The invention relates to the technical field of decoration equipment, and particularly discloses a paint brushing device for indoor top plate decoration, the paint brushing device comprises a supporting rod and a roller brush, the roller brush comprises a lining cylinder and a brushing cylinder arranged outside the lining cylinder in a sleeving mode, the two ends of the lining cylinder are rotationally connected with supporting discs, and a first supporting assembly and a second supporting assembly are arranged in the lining cylinder; the first supporting assembly comprises a first mounting disc and a second mounting disc, arc-shaped supporting plates are arranged on the peripheries of the first mounting disc and the second mounting disc correspondingly, and the arc-shaped supporting plates are connected with a first driving assembly driving the arc-shaped supporting plates to move in the radial direction of the supporting discs. The second supporting assembly comprises a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are connected with two rectangular supporting plates correspondingly, and the rectangular supporting plates are connected with a second driving assembly driving the rectangular supporting plates to move in the radial direction of the supporting disc. According to the paint brushing device for indoor top plate decoration, the roller brush can be deformed into a shape with edges, and the edges are used for brushing corner gaps of an indoor top plate.

Description

Technical Field

[0001] The invention relates to the technical field of decoration equipment, and in particular to a paint brushing device for indoor ceiling decoration. Background Art

[0002] When painting indoor ceilings, a roller brush is usually used. In order to achieve fast painting, existing roller brushes usually have a large diameter. When rolling to corners, the rounded outer surface of the roller brush is difficult to evenly and quickly apply paint to the corner gaps, resulting in low construction efficiency and quality.

[0003] The Chinese patent with the announcement number CN211473258U discloses a roller brush device for construction, including a handle, a U-shaped connecting frame is fixed to one end of the handle, and a connecting shaft is fixed to the inner side of the U-shaped connecting frame away from the end of the handle, and a multifunctional roller brush cylinder assembly is fixed on the connecting shaft, and the multifunctional roller brush cylinder assembly includes a Y-shaped plate and a stopper, and the Y-shaped plate is provided with two and is slidably sleeved at both ends of the connecting shaft, and the three ends of the Y-shaped plate are rotatably connected to the painting shaft through bearings, and the outer sides of the three painting shafts are respectively fixed with two coarse painting cylinders and one fine painting cylinder. The patent uses two coarse painting cylinders to paint a large area one after the other, and uses a fine painting cylinder to paint door frames, windows and wall corners, avoiding the need to replace painting cylinders of different sizes back and forth, thereby improving work efficiency.

[0004] Although the fine paint brush has a small diameter and can be used for painting some details, it is, after all, a roller with a rounded outer surface. Even with a small diameter, it cannot completely fit the inner corner of the wall, resulting in the edge seams of the inner corner of the wall not being fully painted, affecting the painting effect. If a brush is used to paint the edge seams for a second time, it will not only increase the workload of painting, but also affect work efficiency.

[0005] Therefore, the art needs a paint brushing device for indoor ceiling decoration to solve the above problems. Summary of the invention

[0006] The present invention provides a paint brushing device for indoor ceiling decoration, aiming to solve the problem that the paint brushing device in the related art cannot fully paint the angle, resulting in poor painting effect and low efficiency of brushing.

[0007] A paint brushing device for indoor ceiling decoration of the present invention comprises a support rod and a roller brush, wherein the roller brush comprises an inner lining tube and a paint brush tube sleeved on the outer periphery of the inner lining tube, wherein both ends of the inner lining tube are rotatably connected with coaxially arranged support plates, a connecting rod is arranged on the support rod, the support plate is fixedly connected with the connecting rod, and at least two groups of support assemblies 1 and at least two groups of support assemblies 2 are arranged in the inner lining tube; The support assembly 1 includes a mounting plate 1 and a mounting plate 2 fixedly connected to the support plate, and arc-shaped support plates are evenly spaced on the outer circumferences of the mounting plate 1 and the mounting plate 2, and the arc-shaped support plates on the mounting plate 1 and the mounting plate 2 are staggered, and the arc-shaped support plates are connected to a driving assembly 1 that drives them to move radially along the support plate, so that the arc-shaped support plates are supported on the inner circumference of the inner liner; Support component 2 includes mounting plate 1 and mounting plate 2 fixedly connected to the support disk. Mounting plate 1 and mounting plate 2 are respectively connected to two rectangular support plates, and the rectangular support plates are connected to driving component 2 that drives them to move radially along the support disk so that the rectangular support plates are supported inside the inner liner.

[0008] The present invention drives the arc-shaped support plate to be supported on the inner periphery of the inner lining cylinder by driving component 1, so that the inner lining cylinder and the painting cylinder maintain a cylindrical shape, which is convenient for the roller brush to roll a large area of ​​the indoor ceiling. The rectangular support plate is driven by driving component 2 to be supported inside the inner lining cylinder, so that the four rectangular support plates support the inner lining cylinder and the painting cylinder into a shape tending to be a rectangular parallelepiped. The edge edges formed by the rectangular support plates on the painting cylinder are used to paint the edges and corners of the indoor ceiling. Not only can the edges and corners be fully painted to improve the painting effect, but there is no need to replace the brush for rebrushing, which improves the painting efficiency.

[0009] Preferably, a coaxially arranged mounting shaft is rotatably connected between the two support plates, and the arc-shaped support plate is slidably connected to the mounting plate one and the mounting plate two along the radial direction of the mounting shaft through a slide bar one, and a drive component one includes a drive plate one fixedly connected to the mounting shaft and a drive groove one arranged on the drive plate one, the drive plate one is located between the mounting plate one and the mounting plate two, the drive groove one corresponds one to the arc-shaped support plate, and the drive groove one is an arc-shaped groove, a guide column one extending into the arc-shaped groove is fixedly connected to the slide bar one, and a drive component three for driving the mounting shaft to rotate is arranged on the support rod, and when the drive plate one rotates following the mounting shaft, the drive groove one drives the guide column one to drive the corresponding arc-shaped support plate to move along the radial direction of the mounting shaft.

[0010] Preferably, the rectangular support plate is slidably connected with the mounting plate one and the mounting plate two along the radial direction of the mounting axis through the sliding rod two, the driving assembly two includes a driving disk two fixedly connected to the mounting axis and a driving groove two arranged on the driving disk two, the driving disk two is located between the mounting plate one and the mounting plate two, the driving groove two corresponds one to one with the rectangular support plate, and the driving groove two is an arc-shaped groove, and the sliding rod two is fixedly connected with a guide column two extending into the driving groove two, when the driving disk two rotates with the mounting axis, the driving groove two drives the guide column two to drive the corresponding rectangular support plate to move along the radial direction of the mounting axis, and at the same time, the moving direction of the rectangular support plate along the radial direction of the mounting axis is opposite to the moving direction of the arc-shaped support plate.

[0011] By driving the mounting shaft to rotate, the arc-shaped support plate and the rectangular support plate can be driven to move at the same time, and the moving direction of the rectangular support plate in the radial direction of the mounting shaft is opposite to the moving direction of the arc-shaped support plate in the radial direction of the mounting shaft, so that when the rectangular support plate is supported on the inner liner, the arc-shaped support plate is disengaged from the inner liner, and when the arc-shaped support plate is supported on the inner liner, the rectangular support plate is disengaged from the inner liner, thereby ensuring smooth deformation of the inner liner and the brush cylinder.

[0012] Preferably, a U-shaped mounting frame is fixedly connected to the support rod, a support roller is rotatably connected inside the mounting frame, two connecting rods are provided, and the two connecting rods are rotatably connected to both sides of the mounting frame respectively, a driving component four is provided on the support rod, and one end of the connecting rod away from the support plate is hinged to the driving component four, and the driving component four drives the connecting rod to rotate relative to the mounting frame to push the roller brush against the indoor ceiling to be painted.

[0013] Preferably, drive assembly four includes an elastic telescopic rod and a movable rod sleeved on the outer periphery of the support rod, one end of the movable rod is rotatably connected to a threaded sleeve, the outer periphery of the support rod is provided with a threaded section adapted to the threaded sleeve, one end of the elastic telescopic rod is hinged to the movable rod, and the other end is hinged to an end of the connecting rod away from the support disk. When the threaded sleeve is screwed, the threaded sleeve moves along the threaded section and drives the movable rod and the elastic telescopic rod to move, and the elastic telescopic rod drives the end of the connecting rod away from the support disk to move.

[0014] When rolling the brush, both the supporting roller and the roller brush are pressed against the top plate. At this time, the supporting roller serves as the base point, and the roller brush stretches the elastic telescopic rod through the connecting rod, so that the roller brush presses against the indoor ceiling to be painted with a constant force, thereby improving the painting uniformity of the roller brush. Moreover, the position of the threaded sleeve can be adjusted according to the viscosity of the paint, and the pressure between the roller brush and the top plate can be changed to adapt to paints of different viscosities, thereby improving the painting effect and improving the applicability.

[0015] Preferably, drive component three includes gear one fixedly connected to the mounting shaft, gear two rotatably connected to the connecting rod, and an arc-shaped plate fixedly mounted on the mounting frame, a tooth segment matching gear two is provided on the arc-shaped plate, gear two is meshed with gear one, and when the connecting rod rotates relative to the mounting frame until gear two rotates along the tooth segment, gear two drives gear one to drive the mounting shaft to rotate.

[0016] Preferably, the inner liner is made of rubber material, and support bars are evenly spaced along the inner circumference of the inner liner. The support bars extend along the axial direction of the inner liner and are fixedly connected to the inner liner.

[0017] Preferably, the support bar is made of metal.

[0018] Preferably, both ends of the inner liner are connected with metal rings, and the metal rings are rotatably matched with the support plate.

[0019] When applying paint, the inner lining cylinder rotates relative to the two supporting disks. The metal sleeve ring can reduce the friction between the inner lining cylinder and the supporting disks, which is conducive to the smooth rotation of the roller brush.

[0020] Preferably, a base is provided at the end of the support rod away from the roller brush, and an adjusting rod is fixedly connected to the base. The adjusting rod is inserted into the support rod and slidably cooperates with the support rod. A limiting structure is provided between the adjusting rod and the support rod, and the limiting structure is used to limit the relative movement between the adjusting rod and the support rod. A roller is provided at the bottom of the base.

[0021] By setting a sliding fit between the adjustment rod and the support rod, the height of the roller brush can be adjusted to adapt to top plates of different heights. After the height of the roller brush is adjusted, the roller brush can be driven by pushing the base. There is no need to lift the roller brush manually, which reduces the burden on workers. In addition, after the roller brush is used, the base supports the roller brush to avoid placing the roller brush on the ground, which causes both the roller brush and the ground to be contaminated.

[0022] The beneficial effects of the present invention are as follows: the present invention drives the arc-shaped support plate to be supported on the inner periphery of the inner lining tube through the driving component 1, so that the inner lining tube and the painting tube maintain a cylindrical shape, which is convenient for the roller brush to roll a large area of ​​the indoor ceiling. The rectangular support plate is driven by the driving component 2 to be supported inside the inner lining tube, so that the four rectangular support plates support the inner lining tube and the painting tube into a shape tending to be a rectangular parallelepiped. The edge edges formed by the rectangular support plates on the painting tube are used to paint the edge corners and gaps of the indoor ceiling. Not only can the edge corners and gaps be fully painted to improve the painting effect, but there is no need to replace the brush for rebrushing, which improves the painting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model is an overall schematic diagram of a paint brushing device for indoor ceiling decoration of the present invention.

[0024] Figure 2 The present invention is a schematic diagram of a roller brush of a paint brushing device for indoor ceiling decoration.

[0025] Figure 3 The utility model is a cross-sectional view of a roller brush of a paint brushing device for indoor ceiling decoration of the present invention.

[0026] Figure 4 The present invention is a schematic diagram of an inner lining tube of a paint brushing device for indoor ceiling decoration.

[0027] Figure 5 The present invention is a schematic diagram of the internal structure of an inner lining tube of a paint brushing device for indoor ceiling decoration.

[0028] Figure 6It is a schematic diagram of a support component 1 of a paint brushing device for indoor ceiling decoration according to the present invention.

[0029] Figure 7 It is a schematic diagram of the supporting component 2 of the paint brushing device for indoor ceiling decoration of the present invention.

[0030] Figure 8 The present invention is a schematic diagram of a driving component 1 and a driving component 2 of a paint brushing device for indoor ceiling decoration.

[0031] Fig. 9 It is a schematic diagram of a driving component three of a paint brushing device for indoor ceiling decoration according to the present invention.

[0032] Reference numerals: 1. Support rod; 11. Connecting rod; 12. Mounting frame; 13. Support roller; 14. Threaded section; 15. Gear 2; 16. Arc plate; 17. Tooth section; 2. Lining tube; 21. Support bar; 22. Support plate; 23. Metal collar; 3. Paint brush tube; 4. Mounting rod; 51. Mounting plate 1; 52. Mounting plate 2; 53. Arc support plate; 54. Slide bar 1; 55. Guide column 1; 61. Mounting plate 1; 62. Mounting plate 2; 63. Rectangular support plate; 64. Slide bar 2; 65. Guide column 2; 7. Mounting shaft; 71. Drive plate 1; 72. Drive slot 1; 73. Drive plate 2; 74. Drive slot 2; 75. Gear 1; 8. Elastic telescopic rod; 9. Movable rod; 91. Threaded sleeve; 10. Base; 101. Roller; 102. Adjustment rod; 103. Twist handle. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0034] like Figures 1 to 9 As shown, a paint brushing device for indoor ceiling decoration of the present invention comprises a support rod 1 and a roller brush, wherein the roller brush comprises an inner lining tube 2 and a brushing tube 3 sleeved on the outer periphery of the inner lining tube 2. The brushing tube 3 is used to pick up paint and paint the indoor ceiling. The inner lining tube 2 is made of rubber, and the inner lining tube 2 is evenly spaced along its inner periphery with a plurality of support bars 21, which are made of metal and extend along the axial direction of the inner lining tube 2 and are fixedly connected to the inner lining tube 2. The inner lining tube 2 supports the brushing tube 3, and when not subjected to external force, the brushing tube 3 is kept in a cylindrical state.

[0035] The two ends of the inner liner 2 are rotatably connected with coaxially arranged support plates 22, and two connecting rods 11 are arranged on the support rod 1, and the support plates 22 are fixedly connected with the corresponding connecting rods 11. When applying paint, the inner liner 2 rotates relative to the two support plates 22. In order to reduce the friction between the inner liner 2 and the support plates 22, in this embodiment, the two ends of the inner liner 2 are respectively connected with metal rings 23, and the inner liner 2 is rotatably matched with the support plates 22 through the metal rings 23.

[0036] Two groups of support components one and two groups of support components two are arranged in the inner liner tube 2. The support components one are arranged near the two ends of the inner liner tube 2, and the support components two are arranged between the two groups of support components one.

[0037] like Figures 3 to 9 As shown, two mounting rods 4 are fixedly connected between the two support plates 22, and the support assembly 1 includes a mounting plate 1 51 and a mounting plate 2 52 fixedly connected to the mounting rod 4. Three arc-shaped support plates 53 are evenly spaced on the outer peripheries of the mounting plate 1 51 and the mounting plate 2 52, and the arc-shaped support plates 53 on the mounting plate 1 51 and the mounting plate 2 52 are staggered. The arc-shaped support plates 53 are connected to a driving assembly 1 that drives them to move radially along the support plates 22. When the driving assembly 1 drives the arc-shaped support plates 53 to support the inner periphery of the inner lining tube 2, the inner lining tube 2 and the brush tube 3 remain cylindrical, which facilitates the roller brush to roll a large area of ​​the indoor ceiling.

[0038] The supporting assembly 2 includes a mounting plate 1 61 and a mounting plate 2 62 fixedly connected to the mounting rod 4, and the mounting plate 1 61 and the mounting plate 2 62 are respectively connected with two rectangular supporting plates 63, the two rectangular supporting plates 63 on the mounting plate 1 61 are parallel, the two rectangular supporting plates 63 on the mounting plate 2 62 are parallel, and the rectangular supporting plate 63 on the mounting plate 1 61 is perpendicular to the rectangular supporting plate 63 on the mounting plate 2 62. The rectangular supporting plate 63 is connected with a driving assembly 2 for driving it to move radially along the supporting disk 22. When the driving assembly 2 drives the rectangular supporting plate 63 to support the inside of the inner liner 2, the arc-shaped supporting plate 53 is in a state of being separated from the inner liner 2, and the four rectangular supporting plates 63 support the inner liner 2 and the brushing tube 3 to be in a shape tending to a rectangular parallelepiped, and the edge edges formed by the rectangular supporting plates 63 on the brushing tube 3 are used to paint the corner gaps of the indoor ceiling, which can not only make the corner gaps fully painted, improve the painting effect, but also do not need to replace the brush for re-brushing, thereby improving the painting efficiency.

[0039] A coaxially arranged mounting shaft 7 is rotatably connected between the two support disks 22, and an arc-shaped support plate 53 is slidably connected to the mounting disk 1 51 and the mounting disk 2 52 along the radial direction of the mounting shaft 7 through a slide bar 1 54. The driving assembly 1 includes a driving disk 1 71 fixedly connected to the mounting shaft 7 and a driving groove 1 72 arranged on the driving disk 1 71. The driving disk 1 71 is located between the mounting disk 1 51 and the mounting disk 2 52, and the driving groove 1 72 corresponds to the arc-shaped support plate 53 one by one. The driving groove 1 72 is an arc-shaped groove, and six driving grooves 1 72 are arranged on the driving disk 1 71 in a whirlwind shape. A guide column 1 55 extending into the driving groove 1 72 is fixedly connected to the slide bar 1 54.

[0040] A driving component three for driving the mounting shaft 7 to rotate is provided on the support rod 1. When the driving component three drives the mounting shaft 7 to rotate, the mounting shaft 7 drives the driving disk 1 71 to rotate synchronously. The driving groove 1 72 on the driving disk 1 71 drives the guide column 1 55 to drive the corresponding arc-shaped support plate 53 to move along the radial direction of the mounting shaft 7, thereby realizing that the arc-shaped support plate 53 is supported on the inner periphery of the inner liner 2 or the arc-shaped support plate 53 is out of contact with the inner liner 2.

[0041] The rectangular support plate 63 is slidably connected with the mounting plate 1 61 and the mounting plate 2 62 along the radial direction of the mounting shaft 7 through the sliding rod 2 64. The driving assembly 2 includes a driving disk 2 73 fixedly connected to the mounting shaft 7 and a driving groove 2 74 arranged on the driving disk 2 73. The driving disk 2 73 is located between the mounting plate 1 61 and the mounting plate 2 62. The driving groove 2 74 corresponds to the rectangular support plate 63 one by one. The driving groove 2 74 is an arc groove, and four driving grooves 2 74 are arranged on the driving disk 2 73 in a whirlwind shape. The sliding rod 2 64 is fixedly connected with a guide column 2 65 extending into the driving groove 2 74.

[0042] When the drive component three drives the mounting shaft 7 to rotate, the mounting shaft 7 drives the driving disk 2 73 to rotate synchronously, and the driving groove 2 74 on the driving disk 2 73 drives the guide column 2 65 to drive the corresponding rectangular support plate 63 to move along the radial direction of the mounting shaft 7, thereby supporting the rectangular support plate 63 inside the inner liner 2 or making the rectangular support plate 63 out of contact with the inner liner 2.

[0043] The rotation direction of the driving groove 1 72 on the driving disk 1 71 is opposite to the rotation direction of the driving groove 2 74 on the driving disk 2 73. Therefore, when the mounting shaft 7 rotates, the moving direction of the rectangular support plate 63 in the radial direction of the mounting shaft 7 is opposite to the moving direction of the arc support plate 53 in the radial direction of the mounting shaft 7, so that when the rectangular support plate 63 is supported on the inner liner 2, the arc support plate 53 is disengaged from the inner liner 2, and when the arc support plate 53 is supported on the inner liner 2, the rectangular support plate 63 is disengaged from the inner liner 2, thereby ensuring smooth deformation of the inner liner 2 and the brush cylinder 3.

[0044] Due to the different strengths of the manual push roller brush, it is easy to cause uneven application when rolling paint on a large surface, such as Figure 1 and Fig. 9 As shown, in this embodiment, a U-shaped mounting frame 12 is fixedly connected to the top of the support rod 1, a support roller 13 is rotatably connected inside the mounting frame 12, and two connecting rods 11 are rotatably connected to the two sides of the mounting frame 12, and when the connecting rod 11 is in a horizontal state, the support roller 13 and the top of the roller brush are located in the same horizontal plane. A driving component 4 is provided on the support rod 1, and the driving component 4 includes an elastic telescopic rod 8 and a movable rod 9 sleeved on the outer periphery of the support rod 1, and the bottom end of the movable rod 9 is rotatably connected to a threaded sleeve 91, and the outer periphery of the support rod 1 is provided with a threaded section 14 adapted to the threaded sleeve 91. Connecting rods are fixedly connected to the two sides of the movable rod 9, one end of the elastic telescopic rod 8 is hinged to the corresponding connecting rod, and the other end is hinged to the end of the connecting rod 11 away from the support plate 22.

[0045] When the threaded sleeve 91 is screwed downward, the threaded sleeve 91 drives the movable rod 9 and the elastic telescopic rod 8 to move downward, the elastic telescopic rod 8 drives the end of the connecting rod 11 away from the support plate 22 to move downward, and the connecting rod 11 drives the support plate 22 and the roller brush to move upward. When rolling the brush, the support roller 13 and the roller brush are both pressed against the top plate. At this time, the support roller 13 is used as the base point, and the roller brush stretches the elastic telescopic rod 8 through the connecting rod 11, so that the roller brush presses against the indoor top plate to be painted with a constant force, improving the uniformity of the roller brush. Moreover, the position of the threaded sleeve 91 can be adjusted according to the viscosity of the paint, and the pressure between the roller brush and the top plate can be changed to adapt to paints of different viscosities, thereby improving the painting effect and improving the applicability.

[0046] Continue reading Figure 1 and Fig. 9 The driving component three includes a gear 1 75 fixedly connected to the mounting shaft 7, a gear 2 15 rotatably connected to the connecting rod 11, and an arc plate 16 fixedly mounted on the mounting frame 12, the arc plate 16 is provided with a tooth segment 17 adapted to the gear 2 15, the gear 2 15 is meshed with the gear 1 75, the gear 1 75 is located in the support plate 22, and the support plate 22 is provided with a notch for the gear 1 75 and the gear 2 15 to mesh.

[0047] The tooth segment 17 is located at the top of the arc plate 16 . When the roller brush is located on the right side of the supporting roller 13 , the gear 2 15 is not in contact with the tooth segment 17 , and the arc support plate 53 is supported on the inner periphery of the inner liner 2 . When the shape of the roller brush needs to be adjusted, the threaded sleeve 91 is screwed downward to allow the movable rod 9 to drive the connecting rod 11 to rotate to a vertical state. During the connection and rotation process, the gear 2 15 contacts the tooth segment 17 and rotates along the tooth segment 17. The gear 2 15 drives the gear 1 75 to drive the mounting shaft 7 to rotate. The mounting shaft 7 drives the driving disk 1 71 and the driving disk 2 73 to rotate synchronously. The driving groove 1 72 on the driving disk 1 71 drives the arc-shaped support plate 53 to move toward the mounting shaft 7 through the guide column 1 55, so that the arc-shaped support plate 53 is separated from the contact with the inner liner 2. The driving groove 2 74 on the driving disk 2 73 drives the rectangular support plate 63 to move away from the mounting shaft 7 through the guide column 2 65, so that the rectangular support plate 63 is supported in the inner liner 2, thereby realizing the deformation of the roller brush, which is convenient for brushing the gaps at the corners of the top plate.

[0048] It is understandable that in other embodiments, the drive component three can also be configured as a motor, the motor is fixedly mounted on the support plate 22, the mounting shaft 7 is fixedly connected to the output end of the motor, and the rotation of the mounting shaft 7 is driven by controlling the motor.

[0049] like Figure 1 As shown, in order to reduce the burden on workers, in this embodiment, a base 10 is provided at the bottom of the support rod 1, a roller 101 is provided at the bottom of the base 10, an adjusting rod 102 is fixedly connected to the base 10, and the adjusting rod 102 is inserted into the support rod 1 and slidably cooperates with the support rod 1. A limiting structure is provided between the adjusting rod 102 and the support rod 1, and the limiting structure includes a screwing handle 103 and a screw fixedly connected to the screwing handle 103, and the screw passes through the support rod 1 and abuts against the adjusting rod 102.

[0050] By tightening the screw, the screw is tightly pressed against the support rod 1, so as to fix the relative position between the adjusting rod 102 and the support rod 1. By unscrewing the screw, the adjusting rod 102 and the support rod 1 can move relative to each other, so as to adjust the height of the roller brush to adapt to top plates of different heights. After adjusting the height of the roller brush, the roller brush can be driven by pushing the base 10 to move, without the need to manually lift the roller brush, thus reducing the burden on workers. Moreover, after the roller brush is used, the base 10 supports the roller brush to avoid placing the roller brush on the ground, which causes the roller brush and the ground to be contaminated.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A paint brushing device for indoor ceiling decoration, comprising a support rod and a roller brush, characterized in that: The roller brush comprises an inner lining tube and a brushing tube sleeved on the outer periphery of the inner lining tube, the two ends of the inner lining tube are rotatably connected with a coaxially arranged support plate, a connecting rod is arranged on the support rod, the support plate is fixedly connected with the connecting rod, and at least two groups of support components 1 and at least two groups of support components 2 are arranged in the inner lining tube; The support assembly 1 includes a mounting plate 1 and a mounting plate 2 fixedly connected to the support plate, and arc-shaped support plates are evenly spaced on the outer circumferences of the mounting plate 1 and the mounting plate 2, and the arc-shaped support plates on the mounting plate 1 and the mounting plate 2 are staggered, and the arc-shaped support plates are connected to a driving assembly 1 that drives them to move radially along the support plate, so that the arc-shaped support plates are supported on the inner circumference of the inner liner; Support component 2 includes mounting plate 1 and mounting plate 2 fixedly connected to the support disk. Mounting plate 1 and mounting plate 2 are respectively connected to two rectangular support plates, and the rectangular support plates are connected to driving component 2 that drives them to move radially along the support disk so that the rectangular support plates are supported inside the inner liner.

2. The paint brushing device for indoor ceiling decoration according to claim 1 is characterized in that: A coaxially arranged mounting shaft is rotatably connected between the two support plates, and the arc-shaped support plate is slidably connected to the mounting plate one and the mounting plate two along the radial direction of the mounting shaft through a slide bar one. A driving component one includes a driving plate one fixedly connected to the mounting shaft and a driving groove one arranged on the driving plate one, the driving plate one is located between the mounting plate one and the mounting plate two, the driving groove one corresponds one to the arc-shaped support plate, and the driving groove one is an arc-shaped groove, a guide column one extending into the arc-shaped groove is fixedly connected to the slide bar one, and a driving component three for driving the mounting shaft to rotate is arranged on the support rod, and when the driving plate one rotates following the mounting shaft, the driving groove one drives the guide column one to drive the corresponding arc-shaped support plate to move along the radial direction of the mounting shaft.

3. The paint brushing device for indoor ceiling decoration according to claim 2 is characterized in that: The rectangular support plate is slidably connected with the mounting plate one and the mounting plate two along the radial direction of the mounting axis through the sliding rod two. The driving assembly two includes a driving disk two fixedly connected to the mounting axis and a driving groove two arranged on the driving disk two. The driving disk two is located between the mounting plate one and the mounting plate two. The driving groove two corresponds one to the rectangular support plate, and the driving groove two is an arc-shaped groove. A guide column two extending into the driving groove two is fixedly connected to the sliding rod two. When the driving disk two rotates with the mounting axis, the driving groove two drives the guide column two to drive the corresponding rectangular support plate to move along the radial direction of the mounting axis, and at the same time, the moving direction of the rectangular support plate along the radial direction of the mounting axis is opposite to the moving direction of the arc-shaped support plate.

4. The paint brushing device for indoor ceiling decoration according to claim 2 is characterized in that: A U-shaped mounting frame is fixedly connected to the supporting rod, and a supporting roller is rotatably connected inside the mounting frame. Two connecting rods are provided, and the two connecting rods are rotatably connected to both sides of the mounting frame respectively. A driving component four is provided on the supporting rod, and one end of the connecting rod away from the supporting plate is hinged to the driving component four. The driving component four drives the connecting rod to rotate relative to the mounting frame to push the roller brush against the indoor ceiling to be painted.

5. The paint brushing device for indoor ceiling decoration according to claim 4 is characterized in that: The driving component four includes an elastic telescopic rod and a movable rod sleeved on the outer periphery of the support rod, one end of the movable rod is rotatably connected to a threaded sleeve, and the outer periphery of the support rod is provided with a threaded section adapted to the threaded sleeve. One end of the elastic telescopic rod is hinged to the movable rod, and the other end is hinged to an end of the connecting rod away from the support disk. When the threaded sleeve is screwed, the threaded sleeve moves along the threaded section and drives the movable rod and the elastic telescopic rod to move, and the elastic telescopic rod drives the end of the connecting rod away from the support disk to move.

6. The paint brushing device for indoor ceiling decoration according to claim 4 is characterized in that: Driving component three includes gear one fixedly connected to the mounting shaft, gear two rotatably connected to the connecting rod, and an arc plate fixedly mounted on the mounting frame, on which a tooth segment matching gear two is provided, gear two is meshed with gear one, and when the connecting rod rotates relative to the mounting frame until gear two rotates along the tooth segment, gear two drives gear one to drive the mounting shaft to rotate.

7. The paint brushing device for indoor ceiling decoration according to claim 1 is characterized in that: The inner liner is made of rubber material, and support bars are evenly spaced along the inner circumference of the inner liner. The support bars extend along the axial direction of the inner liner and are fixedly connected to the inner liner.

8. The paint brushing device for indoor ceiling decoration according to claim 7 is characterized in that: The support bars are made of metal.

9. The paint brushing device for indoor ceiling decoration according to claim 7, characterized in that: Both ends of the inner liner are connected with metal collars, which are rotatably matched with the support plate.

10. The paint brushing device for indoor ceiling decoration according to claim 1, characterized in that: A base is provided at the end of the support rod away from the roller brush, and an adjusting rod is fixedly connected to the base. The adjusting rod is inserted into the support rod and slidably cooperates with the support rod. A limiting structure is provided between the adjusting rod and the support rod. The limiting structure is used to limit the relative movement between the adjusting rod and the support rod. A roller is provided at the bottom of the base.

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