A paint brushing device for interior ceiling decoration

Abstract

The present invention relates to the technical field of decoration equipment, and specifically discloses a paint brushing device for indoor ceiling decoration, which includes a support rod and a roller brush. The roller brush includes an inner lining cylinder and a brushing cylinder sleeved outside the inner lining cylinder. Both ends of the inner lining cylinder are rotatably connected with support disks, and a first support assembly and a second support assembly are arranged inside the inner lining cylinder; the first support assembly includes a first mounting disk and a second mounting disk, arc-shaped support plates are respectively arranged on the outer circumferences of the first mounting disk and the second mounting disk, and the arc-shaped support plates are connected with a first driving assembly for driving them to move radially along the support disk; the second support assembly includes a first mounting plate and a second mounting plate, two rectangular support plates are respectively connected to the first mounting plate and the second mounting plate, and the rectangular support plates are connected with a second driving assembly for driving them to move radially along the support disk. The paint brushing device for indoor ceiling decoration of the present invention can deform the roller brush into a shape with edge ridges, and use the edge ridges to brush the corner gaps of the indoor ceiling.

Description

Technical Field

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

[0002] When painting the interior ceiling, a roller brush is usually used. In order to achieve rapid painting, the existing roller brushes generally have a large diameter. When the roller brush reaches the corners, it is difficult for the roller brush with a round outer surface to evenly and quickly apply the paint to the corner gaps, resulting in low construction efficiency and quality.

[0003] Chinese Patent with publication number CN211473258U discloses a rolling brush device for construction, including a handle. One end of the handle is fixed with a U-shaped connecting frame, and a connecting shaft is fixed inside the U-shaped connecting frame away from the handle end. A multifunctional rolling brush barrel assembly is fixed on the connecting shaft. The multifunctional rolling brush barrel assembly includes a Y-shaped plate and a limiting member. There are two Y-shaped plates, which are slidably sleeved at both ends of the connecting shaft. Three ends of the Y-shaped plate are respectively rotatably connected with painting shafts through bearings, and two thick painting barrels and one thin painting barrel are respectively fixed on the outer sides of the three painting shafts. This patent uses two thick painting barrels to paint a large area one after another, and uses the thin painting barrel to paint door frames, window openings and wall corners, avoiding the need to replace different-sized painting barrels back and forth, and improving work efficiency.

[0004] Although the diameter of the thin painting barrel is small and it can paint some details, after all, the thin painting barrel is also a roller with a round outer surface. Even if the diameter is small, it cannot completely fit the internal angle at the wall corner, resulting in the inability to fully apply the paint to the edge seam at the wall internal angle, affecting the painting effect. If a brush is used to re-paint the edge seam, it will not only increase the painting workload but also affect work efficiency.

[0005] Therefore, there is a need in the art for a paint brushing device for interior ceiling decoration to solve the above problems. Summary of the Invention

[0006] The present invention provides a paint brushing device for interior ceiling decoration, aiming to solve the problems in the related art that the brushing device cannot fully brush the corners, resulting in poor painting effect and low efficiency when using a brush for re-brushing.

[0007] A paint brushing device for interior ceiling decoration of the present invention includes a support rod and a roller brush. The roller brush includes a lining cylinder and a brushing cylinder sleeved on the outer periphery of the lining cylinder. Support disks are rotatably connected to both ends of the lining cylinder and are coaxially arranged. A connecting rod is arranged on the support rod, and the support disk is fixedly connected to the connecting rod. At least two groups of support components one and at least two groups of support components two are arranged inside the lining cylinder;

[0008] The first support component includes a first mounting disk and a second mounting disk fixedly connected to the support disk. Arc-shaped support plates are evenly spaced on the outer perimeters of the first mounting disk and the second mounting disk respectively, and the arc-shaped support plates on the first mounting disk and the second mounting disk are staggered. The arc-shaped support plates are connected to a first driving component for driving them to move radially along the support disk, so that the arc-shaped support plates support on the inner perimeter of the inner liner cylinder;

[0009] The second support component includes a first mounting plate and a second mounting plate fixedly connected to the support disk. The first mounting plate and the second mounting plate are respectively connected with two rectangular support plates, and the rectangular support plates are connected to a second driving component for driving them to move radially along the support disk, so that the rectangular support plates support inside the inner liner cylinder.

[0010] In the present invention, the first driving component drives the arc-shaped support plates to support on the inner perimeter of the inner liner cylinder, so that the inner liner cylinder and the painting cylinder remain cylindrical, which is convenient for the roller brush to perform large-area rolling painting on the indoor ceiling. The second driving component drives the rectangular support plates to support inside the inner liner cylinder, so that the four rectangular support plates support the inner liner cylinder and the painting cylinder into a shape tending to be cuboid. The edge ridges formed by the rectangular support plates on the painting cylinder are used to paint the corner gaps of the indoor ceiling. This can not only fully paint the corner gaps and improve the painting effect, but also does not require replacing the brush for supplementary painting, thus improving the painting efficiency.

[0011] Preferably, a coaxially arranged mounting shaft is rotatably connected between the two support disks. The arc-shaped support plates are slidably connected to the first mounting disk and the second mounting disk along the radial direction of the mounting shaft through the first sliding rods. The first driving component includes a first driving disk fixedly connected to the mounting shaft and a first driving groove arranged on the first driving disk. The first driving disk is located between the first mounting disk and the second mounting disk. The first driving grooves correspond to the arc-shaped support plates one by one, and the first driving grooves are arc-shaped grooves. Guide columns extending into the arc-shaped grooves are fixedly connected to the first sliding rods. A third driving component for driving the mounting shaft to rotate is arranged on the support rod. When the first driving disk rotates following the mounting shaft, the first driving grooves drive the guide columns to drive the corresponding arc-shaped support plates to move radially along the mounting shaft.

[0012] Preferably, the rectangular support plates are slidably connected to the first mounting plate and the second mounting plate along the radial direction of the mounting shaft through the second sliding rods. The second driving component includes a second driving disk fixedly connected to the mounting shaft and a second driving groove arranged on the second driving disk. The second driving disk is located between the first mounting plate and the second mounting plate. The second driving grooves correspond to the rectangular support plates one by one, and the second driving grooves are arc-shaped grooves. Guide columns extending into the second driving grooves are fixedly connected to the second sliding rods. When the second driving disk rotates following the mounting shaft, the second driving grooves drive the guide columns to drive the corresponding rectangular support plates to move radially along the mounting shaft. And within the same time, the moving direction of the rectangular support plates along the radial direction of the mounting shaft is opposite to the moving direction of the arc-shaped support plates.

[0013] By driving the installation shaft to rotate, the arc-shaped support plate and the rectangular support plate are simultaneously driven to move, and the moving direction of the rectangular support plate in the radial direction of the installation shaft is opposite to that of the arc-shaped support plate in the radial direction of the installation shaft. Thus, when the rectangular support plate supports the inner lining cylinder, the arc-shaped support plate is disengaged from the inner lining cylinder, and when the arc-shaped support plate supports the inner lining cylinder, the rectangular support plate is disengaged from the inner lining cylinder, ensuring the smooth deformation of the inner lining cylinder and the painting cylinder.

[0014] Preferably, a U-shaped mounting bracket is fixedly connected to the support rod, a support roller is rotatably connected inside the mounting bracket, there are two connecting rods, and the two connecting rods are respectively rotatably connected to both sides of the mounting bracket. A driving component four is arranged on the support rod, and one end of the connecting rod far from the support disk is hinged to the driving component four. The driving component four drives the connecting rod to rotate relative to the mounting bracket to push the roller brush against the indoor ceiling to be painted.

[0015] Preferably, 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 with a threaded sleeve, and a threaded section adapted to the threaded sleeve is arranged on the outer periphery of the support rod. One end of the elastic telescopic rod is hinged to the movable rod, and the other end is hinged to the end of the connecting rod far from the support disk. When the threaded sleeve is screwed, the threaded sleeve moves along the threaded section, driving the movable rod and the elastic telescopic rod to move, and the elastic telescopic rod drives the end of the connecting rod far from the support disk to move.

[0016] When rolling the brush, both the support roller and the roller brush are abutted against the ceiling. At this time, the support roller serves as a base point, and the roller brush forms a tensile force on the elastic telescopic rod through the connecting rod, so that the roller brush abuts against the indoor ceiling to be painted with a constant force, 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 coating to change the pressure between the roller brush and the ceiling, so as to adapt to coatings with different viscosities, improving the painting effect and the applicability at the same time.

[0017] Preferably, the driving component three includes a gear one fixedly connected to the installation shaft, a gear two rotatably connected to the connecting rod, and an arc-shaped plate fixedly installed on the mounting bracket. A tooth section adapted to the gear two is arranged on the arc-shaped plate, and the gear two meshes with the gear one. When the connecting rod rotates relative to the mounting bracket until the gear two rotates along the tooth section, the gear two drives the gear one to drive the installation shaft to rotate.

[0018] Preferably, the inner lining cylinder is made of rubber material, and support strips are evenly arranged at intervals along the inner circumference of the inner lining cylinder. The support strips extend along the axial direction of the inner lining cylinder and are fixedly connected to the inner lining cylinder.

[0019] Preferably, the support strips are made of metal material.

[0020] Preferably, metal collar rings are connected to both ends of the inner lining cylinder, and the metal collar rings are rotatably matched with the support disk.

[0021] When applying paint, the inner lining cylinder rotates relative to the two support plates. By setting the metal collar, the friction between the inner lining cylinder and the support plates can be reduced, which is beneficial to the smooth rotation of the roller brush.

[0022] Preferably, a base is provided at one end of the support rod away from the roller brush. An adjusting rod is fixedly connected to the base. The adjusting rod is inserted into the support rod and is slidably matched with the support rod. A limiting structure is provided between the adjusting rod and the support rod for restricting the relative movement between the adjusting rod and the support rod. Rollers are provided at the bottom of the base.

[0023] By setting the adjusting rod and the support rod to be slidably matched, the height of the roller brush can be adjusted to adapt to the ceiling of different heights. After adjusting the height of the roller brush, by pushing the base to move, the driving of the roller brush can be realized, without the need for manual lifting of the roller brush, reducing the burden on workers. In addition, after the roller brush is used, the base forms a support for the roller brush, avoiding the situation where the roller brush is placed on the ground, resulting in contamination of both the roller brush and the ground.

[0024] The beneficial effects of the present invention are as follows: The present invention drives the arc-shaped support plate to support on the inner circumference of the inner lining cylinder through the driving component one, so that the inner lining cylinder and the painting cylinder maintain a cylindrical shape, which is convenient for the roller brush to roll-brush a large area of the indoor ceiling. The rectangular support plate is driven to support inside the inner lining cylinder through the driving component two, so that the four rectangular support plates support the inner lining cylinder and the painting cylinder into a shape tending to be a cuboid. The edge ridges formed by the rectangular support plates on the painting cylinder are used to paint the corner gaps of the indoor ceiling. This not only can fully paint the corner gaps, improving the painting effect, but also does not require replacing the brush for supplementary painting, improving the painting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the overall schematic diagram of a paint brushing device for indoor ceiling decoration according to the present invention.

[0026] Figure 2 is the schematic diagram of the roller brush of a paint brushing device for indoor ceiling decoration according to the present invention.

[0027] Figure 3 is the cross-sectional view of the roller brush of a paint brushing device for indoor ceiling decoration according to the present invention.

[0028] Figure 4 is the schematic diagram of the inner lining cylinder of a paint brushing device for indoor ceiling decoration according to the present invention.

[0029] Figure 5 is the schematic diagram of the internal structure of the inner lining cylinder of a paint brushing device for indoor ceiling decoration according to the present invention.

[0030] Figure 6It is a schematic diagram of the first support component of a paint brushing device for interior ceiling decoration according to the present invention.

[0031] Figure 7 It is a schematic diagram of the second support component of a paint brushing device for interior ceiling decoration according to the present invention.

[0032] Figure 8 It is a schematic diagram of the first driving component and the second driving component of a paint brushing device for interior ceiling decoration according to the present invention.

[0033] Figure 9 It is a schematic diagram of the third driving component of a paint brushing device for interior ceiling decoration according to the present invention.

[0034] Reference numerals:

[0035] 1. Support rod; 11. Connecting rod; 12. Mounting frame; 13. Support roller; 14. Threaded section; 15. Gear two; 16. Arc plate; 17. Tooth section; 2. Lining cylinder; 21. Support strip; 22. Support disk; 23. Metal collar; 3. Brushing cylinder; 4. Mounting rod; 51. First mounting disk; 52. Second mounting disk; 53. Arc-shaped support plate; 54. First sliding rod; 55. First guiding column; 61. First mounting plate; 62. Second mounting plate; 63. Rectangular support plate; 64. Second sliding rod; 65. Second guiding column; 7. Mounting shaft; 71. First driving disk; 72. First driving groove; 73. Second driving disk; 74. Second driving groove; 75. Gear one; 8. Elastic telescopic rod; 9. Movable rod; 91. Threaded sleeve; 10. Base; 101. Roller; 102. Adjusting rod; 103. Screwing handle. Detailed implementation manners

[0036] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0037] As Figures 1 to 9 shown, a paint brushing device for interior ceiling decoration according to the present invention includes a support rod 1 and a roller brush. The roller brush includes a lining cylinder 2 and a brushing cylinder 3 sleeved on the outer periphery of the lining cylinder 2. The brushing cylinder 3 is used to dip the paint coating and brush the interior ceiling. The lining cylinder 2 is made of rubber, and a plurality of support strips 21 are uniformly arranged at intervals along the inner circumference of the lining cylinder 2. The support strips 21 are made of metal, extend along the axial direction of the lining cylinder 2, and are fixedly connected to the lining cylinder 2. The lining cylinder 2 supports the brushing cylinder 3 and keeps the brushing cylinder 3 in a cylindrical state when no external force is applied.

[0038] Both ends of the inner lining cylinder 2 are rotatably connected to coaxially arranged support disks 22. Two connecting rods 11 are arranged on the support rod 1, and the support disk 22 is fixedly connected to the corresponding connecting rod 11. When applying paint, the inner lining cylinder 2 rotates relative to the two support disks 22. To reduce the friction between the inner lining cylinder 2 and the support disks 22, in this embodiment, metal collar rings 23 are respectively connected to both ends of the inner lining cylinder 2, and the inner lining cylinder 2 is rotationally matched with the support disks 22 through the metal collar rings 23.

[0039] Two sets of first support components and two sets of second support components are arranged inside the inner lining cylinder 2. The first support components are arranged near both ends of the inner lining cylinder 2, and the second support components are arranged between the two sets of first support components.

[0040] As Figures 3 to 9 shown, two mounting rods 4 are fixedly connected between the two support disks 22. The first support component includes a first mounting disk 51 and a second mounting disk 52 fixedly connected to the mounting rod 4. Three arc-shaped support plates 53 are evenly spaced on the outer circumferences of the first mounting disk 51 and the second mounting disk 52 respectively, and the arc-shaped support plates 53 on the first mounting disk 51 and the second mounting disk 52 are staggered. The arc-shaped support plate 53 is connected to a first driving component for driving it to move radially along the support disk 22. When the first driving component drives the arc-shaped support plate 53 to support on the inner circumference of the inner lining cylinder 2, the inner lining cylinder 2 and the painting cylinder 3 remain cylindrical, which is convenient for the roller brush to roll-brush a large area of the indoor ceiling.

[0041] The second support component includes a first mounting plate 61 and a second mounting plate 62 fixedly connected to the mounting rod 4. Two rectangular support plates 63 are respectively connected to the first mounting plate 61 and the second mounting plate 62. The two rectangular support plates 63 on the first mounting plate 61 are parallel to each other, the two rectangular support plates 63 on the second mounting plate 62 are parallel to each other, and the rectangular support plates 63 on the first mounting plate 61 are perpendicular to the rectangular support plates 63 on the second mounting plate 62. The rectangular support plate 63 is connected to a second driving component for driving it to move radially along the support disk 22. When the second driving component drives the rectangular support plate 63 to support inside the inner lining cylinder 2, the arc-shaped support plate 53 is in a state of being separated from the inner lining cylinder 2. The four rectangular support plates 63 support the inner lining cylinder 2 and the painting cylinder 3 into a shape tending to be a cuboid. The edge ridges formed by the rectangular support plates 63 on the painting cylinder 3 are used to paint the corner gaps of the indoor ceiling. This can not only fully paint the corner gaps, improve the painting effect, but also eliminate the need to replace the brush for supplementary painting, thus improving the painting efficiency.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] Due to the different forces of manual pushing the roller brush, it is easy to have the problem of uneven coating when painting with a large roller brush, such as Figure 1 and Figure 9 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. Two connecting rods 11 are respectively rotatably connected to both sides of the mounting frame 12. When the connecting rods 11 are in a horizontal state, the top of the support roller 13 and the roller brush are located on the same horizontal plane. A driving component four is arranged on the support rod 1. The driving component four includes an elastic telescopic rod 8 and a movable rod 9 sleeved on the outer periphery of the support rod 1. The bottom end of the movable rod 9 is rotatably connected with a threaded sleeve 91. A threaded section 14 adapted to the threaded sleeve 91 is arranged on the outer periphery of the support rod 1. Connecting rods are respectively fixedly connected to both 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 far away from the support disc 22.

[0048] 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 far away from the support disc 22 to move downward. The connecting rod 11 drives the support disc 22 and the roller brush to move upward. When rolling the brush, both the support roller 13 and the roller brush are abutted against the top plate. At this time, the support roller 13 serves as a base point, and the roller brush forms a stretch on the elastic telescopic rod 8 through the connecting rod 11, so that the roller brush abuts against the indoor top plate to be painted with a constant force, improving the painting uniformity of the roller brush. Moreover, the position of the threaded sleeve 91 can be adjusted according to the viscosity of the paint coating, changing the pressure between the roller brush and the top plate to adapt to coatings with different viscosities, improving the painting effect and the applicability at the same time.

[0049] Continue to refer to Figure 1 and Figure 9 , the driving component three includes a gear one 75 fixedly connected to the mounting shaft 7, a gear two 15 rotatably connected to the connecting rod 11, and an arc-shaped plate 16 fixedly installed on the mounting frame 12. A tooth section 17 adapted to the gear two 15 is arranged on the arc-shaped plate 16. The gear two 15 is meshed with the gear one 75. The gear one 75 is located inside the support disc 22. A notch for meshing the gear one 75 and the gear two 15 is opened on the support disc 22.

[0050] The tooth segment 17 is located at the top of the arc-shaped plate 16. When the drum brush is located on the right side of the support drum 13, the second gear 15 does not contact the tooth segment 17, and the arc-shaped support plate 53 is supported on the inner circumference of the inner lining cylinder 2. When it is necessary to adjust the shape of the drum brush, the threaded sleeve 91 is screwed downward, so that the movable rod 9 drives the connecting rod 11 to rotate to the vertical state. During the connection rotation process, the second gear 15 contacts the tooth segment 17 and rotates along the tooth segment 17. The second gear 15 drives the first gear 75 to drive the installation shaft 7 to rotate. The installation shaft 7 drives the first drive disk 71 and the second drive disk 73 to rotate synchronously. The first drive groove 72 on the first drive disk 71 drives the arc-shaped support plate 53 to move towards the direction close to the installation shaft 7 through the first guide post 55, so that the arc-shaped support plate 53 is separated from the contact with the inner lining cylinder 2. The second drive groove 74 on the second drive disk 73 drives the rectangular support plate 63 to move away from the installation shaft 7 through the second guide post 65, so that the rectangular support plate 63 is supported in the inner lining cylinder 2, thereby realizing the deformation of the drum brush and facilitating the painting of the corner gaps of the top plate.

[0051] It can be understood that in other embodiments, the third drive assembly can also be set as a motor. The motor is fixedly installed on the support disk 22, and the installation shaft 7 is fixedly connected to the output end of the motor. The rotation of the installation shaft 7 is driven by controlling the motor.

[0052] As Figure 1 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. The adjusting rod 102 is inserted into the support rod 1 and is slidably matched with the support rod 1. A limiting structure is provided between the adjusting rod 102 and the support rod 1. The limiting structure includes a screwing handle 103 and a screw fixedly connected to the screwing handle 103. The screw penetrates through the support rod 1 and abuts against the adjusting rod 102.

[0053] By tightening the screw, the screw tightly abuts against the support rod 1 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, thereby realizing the adjustment of the height of the drum brush to adapt to the top plates of different heights. After adjusting the height of the drum brush, by pushing the base 10 to move, the driving of the drum brush can be realized, without the need for manual lifting of the drum brush, reducing the burden on workers. Moreover, after the drum brush is used, the base 10 forms a support for the drum brush, avoiding the situation that the drum brush is placed on the ground, resulting in the pollution of both the drum brush and the ground.

[0054] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0055] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0056] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to 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 includes a lining cylinder and a brushing cylinder sleeved on the outer periphery of the lining cylinder. At both ends of the lining cylinder, there are coaxially arranged support disks rotatably connected. A connecting rod is arranged on the support rod, and the support disk is fixedly connected to the connecting rod. At least two sets of support components one and at least two sets of support components two are arranged inside the lining cylinder; The support component one includes a first mounting disk and a second mounting disk fixedly connected to the support disk. Arc-shaped support plates are respectively and evenly arranged at intervals on the outer peripheries of the first mounting disk and the second mounting disk, and the arc-shaped support plates on the first mounting disk and the second mounting disk are arranged staggeredly. The arc-shaped support plate is connected with a first driving component for driving it to move radially along the support disk, so that the arc-shaped support plate supports on the inner periphery of the lining cylinder; The support component two includes a first mounting plate and a second mounting plate fixedly connected to the support disk. Two rectangular support plates are respectively connected to the first mounting plate and the second mounting plate, and the rectangular support plate is connected with a second driving component for driving it to move radially along the support disk, so that the rectangular support plate supports inside the lining cylinder; The lining cylinder is made of rubber material, and support strips are evenly arranged at intervals along its inner periphery. The support strips extend along the axial direction of the lining cylinder and are fixedly connected to the lining cylinder.

2. The paint brushing device for indoor ceiling decoration according to claim 1, characterized in that, An installation shaft arranged coaxially is rotatably connected between the two support disks. The arc-shaped support plate is slidably connected to the first mounting disk and the second mounting disk along the radial direction of the installation shaft through a first sliding rod. The first driving component includes a first driving disk fixedly connected to the installation shaft and a first driving groove arranged on the first driving disk. The first driving disk is located between the first mounting disk and the second mounting disk. The first driving groove corresponds to the arc-shaped support plate one by one, and the first driving groove is an arc-shaped groove. A first guiding column extending into the arc-shaped groove is fixedly connected to the first sliding rod. A third driving component for driving the installation shaft to rotate is arranged on the support rod. When the first driving disk rotates following the installation shaft, the first driving groove drives the first guiding column to drive the corresponding arc-shaped support plate to move radially along the installation shaft.

3. The paint brushing device for indoor ceiling decoration according to claim 2, characterized in that, The rectangular support plate is slidably connected to the first mounting plate and the second mounting plate along the radial direction of the installation shaft through a second sliding rod. The second driving component includes a second driving disk fixedly connected to the installation shaft and a second driving groove arranged on the second driving disk. The second driving disk is located between the first mounting plate and the second mounting plate. The second driving groove corresponds to the rectangular support plate one by one, and the second driving groove is an arc-shaped groove. A second guiding column extending into the second driving groove is fixedly connected to the second sliding rod. When the second driving disk rotates following the installation shaft, the second driving groove drives the second guiding column to drive the corresponding rectangular support plate to move radially along the installation shaft. And within the same time, the moving direction of the rectangular support plate along the radial direction of the installation shaft 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, characterized in that, A U-shaped mounting frame is fixedly connected to the support rod. A support roller is rotatably connected inside the mounting frame. There are two connecting rods. The two connecting rods are respectively rotatably connected to both sides of the mounting frame. A fourth driving component is arranged on the support rod. One end of the connecting rod far from the support disk is hinged to the fourth driving component. The fourth driving component 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 interior ceiling decoration according to claim 4, characterized in that, The fourth driving component 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 with a threaded sleeve, and a threaded section adapted to the threaded sleeve is arranged on the outer periphery of the support rod. One end of the elastic telescopic rod is hinged to the movable rod, and the other end is hinged to the end of the connecting rod away from the support disc. When the threaded sleeve is screwed, the threaded sleeve moves along the threaded section, driving 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 disc to move.

6. The paint brushing device for indoor ceiling decoration according to claim 4, characterized in that, The third driving component includes a first gear fixedly connected to the mounting shaft, a second gear rotatably connected to the connecting rod, and an arc-shaped plate fixedly mounted on the mounting frame. A tooth section adapted to the second gear is arranged on the arc-shaped plate, and the second gear meshes with the first gear. When the connecting rod rotates relative to the mounting frame and the second gear rotates along the tooth section, the second gear drives the first gear to drive the mounting shaft to rotate.

7. The paint brushing device for indoor ceiling decoration according to claim 1, characterized in that, The support bar is made of metal.

8. The paint brushing device for indoor ceiling decoration according to claim 1, characterized in that, Both ends of the inner lining cylinder are connected with metal collar rings, and the metal collar rings are rotationally matched with the support disc.

9. The paint brushing device for indoor ceiling decoration according to claim 1, wherein, A base is arranged at one end of the support rod away from the drum brush. An adjusting rod is fixedly connected to the base. The adjusting rod is inserted into the support rod and is slidably matched with the support rod. A limiting structure is arranged 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 arranged at the bottom of the base.

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