A paint applicator

Abstract

The application relates to the technical field of building decoration tools, and particularly discloses a paint brushing device, which comprises a bottom plate, an elongated rod, a rolling brush cylinder, and a mounting plate fixed to the bottom plate, a rolling wheel is mounted to the lower surface of the bottom plate, a paint bucket limiting structure is fixed to the upper surface of the bottom plate, the elongated rod is connected to the mounting plate through an adjusting structure, and the rolling brush cylinder is connected to one end of the elongated rod through a connecting structure; the adjusting structure comprises a sliding rod arranged in the longitudinal direction and a sliding sleeve sleeved with the sliding rod, the sliding rod is rotationally connected to the mounting plate, the sliding rod is provided with a sliding groove in the longitudinal direction, the sliding sleeve is provided with a limiting block and is slidably connected to the sliding groove, the sliding sleeve is fixedly connected with a connecting block, and the elongated rod is slidably connected with the connecting block; the connecting structure comprises a connecting frame and a mounting column fixed to the end of the connecting frame, and the rolling brush cylinder is rotationally connected to the mounting column. The patent aims to solve the problems that the paint brushing device is labor-consuming and the paint bucket needs to be repeatedly moved manually.

Description

Technical Field

[0001] This invention relates to the field of building decoration tools, and in particular to a paint applicator. Background Technology

[0002] In modern building decoration, various waterproof coatings are used to ensure waterproofing. After application, waterproof coatings form a film that prevents moisture penetration. Once cured, these materials possess a certain degree of crack resistance, providing waterproofing and seepage prevention. Waterproof coatings are made from synthetic rubber, synthetic resin, and asphalt as base materials, with the addition of various additives and fillers. They are classified by coating type into solvent-based, water-emulsion, and reactive types; and by the main components of the film-forming substance into three categories: synthetic polymer waterproof coatings, polymer-modified asphalt waterproof coatings, and asphalt-based waterproof coatings.

[0003] When applying waterproof coatings, it is usually necessary to use a brushing tool to ensure a uniform coating effect. Currently, the main application method is to apply the coating manually with a brush. A common brush consists of a long pole and a brush roller. Since the entire wall surface needs to be coated, the assembled long pole is 1.5-2m long, which is quite labor-intensive for workers. In addition, the paint bucket also needs to be moved repeatedly by hand to facilitate application. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the technical problem solved by this invention is to provide a paint applicator that solves the problems of laborious use of existing applicators and the need for repeated manual movement of paint buckets.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows: A paint applicator, comprising a base plate, a long rod, a roller brush, and a mounting plate arranged vertically and fixedly connected at one end to the base plate. Rollers are mounted on the lower surface of the base plate, and a paint bucket limiting structure is fixed to the upper surface of the base plate. The long rod is connected to the mounting plate via an adjustment structure, and the roller brush is detachably connected to one end of the long rod via a connecting structure. The adjustment structure includes a longitudinally arranged sliding rod and a sliding sleeve sleeved to the sliding rod. The two ends of the sliding rod are rotatably connected to the inner surfaces of the tops of the two mounting plates, respectively. The sliding rod is slidably connected to a sliding groove and does not rotate with the sliding rod. A connecting block is fixedly connected to the surface of the sliding sleeve, and a sliding hole is opened on the side of the connecting block. The long rod passes through the sliding hole and is slidably connected to the connecting block in the transverse direction.

[0006] The beneficial effects of this solution are as follows: The long rod is connected to the mounting plate via an adjusting structure. Through the cooperation of the sliding rod, sliding sleeve, and connecting block, the long rod slides left and right along the sliding groove via the sliding sleeve. Using the connecting block as a fulcrum and the long rod as a lever, the hand-held end is pressed up and down to move the roller brush cylinder up and down. The mounting plate and sliding rod provide support for the long rod as the roller brush cylinder rolls, thus saving effort. By placing the paint bucket on the base plate, the paint bucket moves with the base plate, eliminating the need for repeated manual movement of the paint bucket and improving paint application efficiency. Simultaneously, the long rod can be pulled to insert one end of the roller brush cylinder into the paint bucket to pick up paint.

[0007] Furthermore, the connection structure includes a connecting frame and a mounting post fixed to the end of the connecting frame. The connecting frame is connected to one end of the long rod, and the roller brush cylinder is rotatably connected to the mounting post. One end of the mounting post has a threaded cavity, and the other end has a movable cavity communicating with the threaded cavity. A movable block is provided inside the movable cavity. One end of the movable block is fixed to a limiting post, and one end of the limiting post extends out of the other end of the mounting post and is rotatably connected to the roller brush cylinder. A threaded plate is threadedly connected to the threaded cavity. The roller brush cylinder adopts a detachable structure. By removing the threaded plate, the limiting post can be directly disengaged from the through hole, and the roller brush cylinder can be directly removed for easy replacement.

[0008] Furthermore, the paint bucket limiting structure includes a symmetrically arranged movable plate and a fixed plate. The fixed plate is detachably connected to the upper surface of the base plate, and screws are rotatably connected to both ends of the fixed plate. One end of each screw is movably connected to both ends of the movable plate and passes through the movable plate to connect to a nut. By moving the movable plate, the paint bucket can be directly fixed to the base plate for use with the cooperation of the movable plate and the fixed plate. Both assembly and disassembly are relatively simple, and it can fix paint buckets of different sizes, making it highly versatile.

[0009] Furthermore, the movable plate includes an arc-shaped movable clamping plate, with strip-shaped first end plates fixed to both ends of the movable clamping plate. The fixed plate includes an arc-shaped fixed clamping plate, with strip-shaped second end plates fixed to both ends of the fixed clamping plate. One end of the screw is rotatably connected to the second end plate, and the other end is movably connected to the second end plate. The paint bucket is clamped between the movable clamping plate and the fixed clamping plate. The arc-shaped fixed clamping plate and the movable clamping plate facilitate contact with the outer wall of the paint bucket, thereby better limiting the position of the paint bucket.

[0010] Furthermore, the long rod includes a secondary rod and a main rod that are detachably connected together. The secondary rod is slidably connected to the connecting block, and the main rod is fixedly connected to the connecting frame. This facilitates the disassembly and transportation of the long rod.

[0011] Furthermore, the connecting frame has a U-shaped structure, and the mounting posts are fixed to both ends of the connecting frame. The U-shaped structure facilitates the installation of the roller brush cylinder.

[0012] Furthermore, the movable block is splinedly connected to the movable cavity, the outer diameter of the movable cavity is the same as the diameter of the threaded cavity, and the threaded plate has an operating groove on its side away from the movable cavity. The movable block is limited within the movable cavity by the threaded plate, and the operating groove facilitates the removal of the threaded plate, thereby enabling the disassembly of the movable block and the separation of the limiting post from the through hole. At this point, the roller brush cylinder can be directly removed for easy replacement.

[0013] Furthermore, the limiting structure of the paint bucket includes a suction mechanism and an adsorption mechanism. The adsorption mechanism includes a perforated plate on the bottom plate, and a suction chamber arranged horizontally on the bottom plate below the perforated plate. The suction mechanism includes a suction chamber with an upper opening in the vertical direction in the mounting plate, and the suction chamber is connected to the suction chamber. A piston is slidably connected in the suction chamber. The piston is equipped with a one-way valve that supplies gas only so that the lower end of the piston flows to the upper end of the piston. A limiting ring is provided at the lower end of the piston. A spring is connected between the limiting ring and the piston. The end of the sliding rod extends into the suction chamber and is fixedly connected to a disc cam, which abuts against the piston. The holes of the perforated plate can be completely covered by the bottom of the paint bucket.

[0014] During application, the long rod drives the sliding rod to rotate, thus moving the roller brush cylinder up and down. The rotation of the sliding rod drives the cam to rotate, and the cam's rotation presses down on the piston. Under the spring force and the cam's pressure, the piston moves up and down along the suction chamber, drawing air out through the one-way valve. Because the suction chamber is connected to the intake chamber, the gas in the intake chamber decreases, creating a negative pressure. This draws air from between the paint bucket and the perforated plate into the intake chamber through the perforated plate's holes. The piston continuously draws out the gas, maintaining a negative pressure in the intake chamber, thus firmly adhering the paint bucket to the perforated plate and limiting its position. This structure prevents the paint bucket from being squeezed and is suitable for paint buckets of various sizes, requiring no additional manual fixing.

[0015] Furthermore, a pedal is provided at one end of the perforated plate, and the end of the perforated plate with the pedal is rotatably connected to the base plate. A sealing strip is provided on the side wall of the perforated plate. When the paint in the paint bucket is used up, the perforated plate is lifted by stepping on the pedal, allowing the opening between the perforated plate and the base plate of the external air tank to enter the suction chamber. This balances the air pressure inside the suction chamber with the external atmospheric pressure, relieving the negative pressure state, and thus the paint bucket can be easily removed.

[0016] Furthermore, the holes in the perforated plate are arranged in a circular pattern, and the diameter of the circle is smaller than the diameter of the bottom of the paint bucket. Arranging the holes in a circular pattern better fits the shape of the paint bucket, making it easier to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of one embodiment of this application;

[0018] Figure 2 This is a connection diagram of a movable clamping plate, a paint bucket, and a fixed clamping plate according to one embodiment of this application;

[0019] Figure 3 This is a diagram showing the connection between the roller brush cylinder and the auxiliary rod according to one embodiment of this application;

[0020] Figure 4 This is a three-dimensional structural diagram of a mounting column according to an embodiment of this application;

[0021] Figure 5 This is a front sectional view of Embodiment 2 of the present invention;

[0022] Figure 6 This is a side sectional view of Example 2. Detailed Implementation

[0023] The following detailed description illustrates the specific implementation method:

[0024] The reference numerals in the accompanying drawings include: roller 1, limit lever 101, base plate 2, perforated plate 21, pedal 211, vent valve 212, suction chamber 22, first one-way valve 23, movable clamping plate 3, first end plate 31, screw 4, fixed clamping plate 5, second end plate 51, paint bucket 6, mounting plate 7, suction chamber 71, piston 72, pressure rod 721, pressure ring 722, second one-way valve 723, limit ring 73, spring 74, slide rod 8, slide groove 81, cam 82, auxiliary rod 9, connecting block 10, sliding sleeve 11, fastening nut 12, connecting frame 13, mounting post 14, threaded cavity 141, movable cavity 142, threaded plate 15, movable block, limit post 17, roller brush cylinder 18, through hole 181, main rod 19.

[0025] Example 1 is attached. Figure 1-4As shown: A paint applicator includes a base plate 2, a long rod, a roller brush 18, and a mounting plate 7 arranged vertically and fixed to the base plate 2 at one end. Rollers 1 are mounted on the lower surface of the base plate 2, and a paint bucket 6 limiting structure is fixed to the upper surface of the base plate 2. The long rod is connected to the mounting plate 7 via an adjustment structure, and the roller brush 18 is connected to one end of the long rod via a connecting structure. The adjustment structure includes a sliding rod 8 arranged longitudinally and a sliding sleeve 11 sleeved with the sliding rod 8. Both ends of the sliding rod 8 are rotatably connected to the inner surfaces of the tops of the two mounting plates 7, respectively. The sliding rod 8 has a groove 8 along its longitudinal direction. 1. A limiting block is fixed to the inner wall of the sliding sleeve 11 and the limiting block is slidably connected to the sliding groove 81. A connecting block 10 is fixed to the surface of the sliding sleeve 11. A sliding hole is opened on the side of the connecting block 10. A long rod passes through the sliding hole and is slidably connected to the sliding sleeve 11 in the transverse direction. The connecting structure includes a connecting frame 13 and a mounting post 14 fixed to the end of the connecting frame 13. The connecting frame 13 is connected to one end of the long rod. The connecting frame 13 has a U-shaped structure and mounting posts 14 are fixed to both ends of the connecting frame 13. A through hole 181 is provided in the middle of the roller brush cylinder 18. The mounting post 14 is rotatably connected to the through hole 181 of the roller.

[0026] One end of the mounting post 14 has a threaded cavity 141, and the other end has a movable cavity 142 communicating with the threaded cavity 141. A movable block is located inside the movable cavity 142, and the movable block is splinedly connected to the movable cavity 142. All movable cavities 142 are hexagonal in shape, and the dimensions of the movable block and the movable cavity 142 are matched. The outer circle dimension of the movable cavity 142 is the same as that of the threaded cavity 141. One end of the movable block is fixedly connected to a limiting post 17, and one end of the limiting post 17 extends out of the mounting post 14 and is rotatably connected to the roller brush cylinder 18. The threaded cavity 141 is threadedly connected to a threaded plate 15. The roller brush cylinder 18 adopts a detachable structure. By removing the threaded plate 15, the limiting post 17 can be directly disengaged from the through hole 181, and the roller brush cylinder 18 can be directly removed for easy replacement.

[0027] The limiting structure of the paint bucket 6 includes symmetrically arranged movable plates and fixed plates. The fixed plates are bolted to the upper surface of the base plate 2, and screws 4 are hinged to both ends of the fixed plates. One end of each screw 4 is movably connected to both ends of the movable plates and passes through the movable plates, connected to a fastening nut 12. The movable plate includes an arc-shaped movable clamping plate 3, with strip-shaped first end plates 31 fixed to both ends of the movable clamping plate 3. The fixed plate includes an arc-shaped fixed clamping plate 5, with strip-shaped second end plates 51 fixed to both ends of the fixed clamping plate 5. One end of each screw 4 is rotatably connected to the second end plate 51, and the other end is movably connected to the second end plate 51. The paint bucket 6 is clamped between the movable clamping plate 3 and the fixed clamping plate 5. The arc-shaped fixed clamping plate 5 and the movable clamping plate 3 facilitate contact with the outer wall of the paint bucket 6, thereby better limiting the paint bucket 6. By moving the movable plate, the paint bucket 6 can be directly fixed to the base plate 2 for use with the cooperation of the movable plate and the fixed plate. The assembly and disassembly are relatively simple, and it can fix paint buckets 6 of different sizes, making it highly versatile.

[0028] When using this application, the paint bucket 6 containing the paint is first placed between the movable clamping plate 3 and the fixed clamping plate 5. The outer end of the screw 4 is engaged with the inside of the first end plate 31 by rotating the screw 4. At the same time, the fastening nut 12 is screwed and tightened on the outer end surface of the screw 4 to fix the paint bucket 6. The assembly and disassembly are relatively simple.

[0029] Then, screw the auxiliary rod 9 and the main rod 19 together. By pulling the auxiliary rod 9, the roller brush cylinder 18 can slide forward, backward, left, and right or rotate up and down. The roller brush cylinder 18 can be placed inside the paint bucket 6 and the paint can be soaked on the roller brush cylinder 18. By operating the auxiliary rod 9, the roller brush cylinder 18 can be rolled on the wall to complete the operation of applying waterproof paint.

[0030] Finally, the roller brush cylinder 18 adopts a detachable structure. By using an Allen wrench to engage inside the operating groove, the threaded plate 15 can be removed from the inside of the threaded cavity 141. At this time, the movable block can be removed from the inside of the movable cavity 142, and the limiting post 17 disengages from the roller brush cylinder 18, so that the roller brush cylinder 18 can be directly removed for easy replacement.

[0031] Example 2 Figure 5-6 As shown, the limiting structure of the paint bucket 6 includes a suction mechanism and an adsorption mechanism. The adsorption mechanism includes a perforated plate 21 on the bottom plate 2. Below the perforated plate 21, the bottom plate 2 has a suction chamber 22 arranged in a horizontal direction. The suction chamber 22 is provided with a first one-way valve 23 that allows gas to flow from the suction chamber 22 to the suction chamber 71. The suction mechanism includes a suction chamber 71 with an upper opening in a vertical direction in the mounting plate 7. The suction chamber 71 is connected to the suction chamber 22. A piston 72 is slidably connected in the suction chamber 71. The piston 72 is provided with a second one-way valve 723 that allows gas to flow from the lower end of the piston 72 to the upper end of the piston 72. A limiting ring 73 is provided at the lower end of the piston 72. A spring 74 is connected between the limiting ring 73 and the piston 72. The end of the slide rod 8 extends into the suction chamber 71 and is fixedly connected to a disc cam 82. The cam 82 abuts against the piston 72. The holes of the perforated plate 21 can be completely covered by the bottom of the paint bucket 6. A foot pedal 211 is provided at one end of the perforated plate 21, and the end of the perforated plate 21 with the foot pedal 211 is hinged to the base plate 2. A sealing strip is provided on the side wall of the perforated plate 21. The holes of the perforated plate 21 are distributed in a circular or polygonal manner. In this embodiment, they are preferably distributed in a circular manner, and the diameter of the circle is smaller than the bottom diameter of the paint bucket 6. The perforated plate 21 is provided with a vent valve 212 that can be manually opened and closed.

[0032] During the coating process, the long rod drives the sliding rod 8 to rotate, thereby moving the roller brush cylinder 18 up and down. When the sliding rod 8 rotates, it drives the cam 82 to rotate. When the cam 82 rotates, it presses the piston 72 downwards. Under the elastic force of the spring 74 and the pressing force of the cam 82, the piston 72 moves up and down along the suction chamber 71, thereby drawing air out of the suction chamber 71 through the second one-way valve 723. Since the suction chamber 71 is connected to the suction chamber 22, air from the suction chamber 22 is simultaneously drawn into the suction chamber 71 through the first one-way valve 23, reducing the gas in the suction chamber 22 and creating a smaller air volume within the suction chamber 22. The system creates a negative pressure state, drawing air from between the paint bucket 6 and the perforated plate 21 into the suction chamber through the holes in the perforated plate 21. When the long rod is used for painting, it rotates continuously along the vertical plane with the slide rod 8 as the fulcrum, driving the cam 82 to rotate repeatedly, thereby continuously squeezing the piston 72. Under the reciprocating movement of the piston 72, gas is continuously extracted, keeping the suction chamber 22 in a negative pressure state. This allows the paint bucket 6 to be firmly adsorbed onto the perforated plate 21, thus limiting the position of the paint bucket 6. This structure does not compress the paint bucket 6 and is applicable to paint buckets 6 of various sizes, without the need for additional manual fixing.

[0033] When the paint in the paint bucket 6 is used up, open the vent valve to allow outside air to enter the suction chamber 22. Step on the pedal 211 to lift the perforated plate 21, allowing outside air to enter the suction chamber 22 through the opening between the perforated plate 21 and the base plate 2. This balances the air pressure inside the suction chamber 22 with the external atmospheric pressure, relieving the negative pressure state, and making it easy to remove the paint bucket 6.

[0034] A pressure rod 721 is fixed to the lower end of the piston 72. The lower end of the pressure rod 721 extends through the base plate 2 to the bottom of the base plate 2 and is fitted with a pressure ring 722. There are four rollers 1 at the bottom of the base plate 2. The rollers 1 are toggle-type limit rollers. The toggle-type limit rollers have a limit lever 101 for manual pressing down. The toggle-type limit rollers are existing technology and will not be described in detail here. Two rollers 1 are located below the two mounting plates 7 respectively. The pressure ring 722 is located above the limit lever 101 of the roller and is in contact with the limit lever 101. When the piston 72 moves downward under the pressure of the cam 82, it drives the pressure rod 721 to move downward, thereby causing the pressure ring 722 to move downward and press down the limit lever 101, thus limiting the roller and preventing the base plate 2 from shifting during the painting process. When it is necessary to move the base plate 2, the position of the cam 82 is adjusted by rotating the slide rod 8, thereby adjusting the position of the piston 72, so that the pressure ring 722 will not block the limit lever 101 from resetting, and then the limit lever 101 can be reset.

[0035] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A paint applicator, characterized in that: The system includes a base plate, a long rod, a roller brush, and a mounting plate vertically positioned and fixed to the base plate at one end. Rollers are mounted on the lower surface of the base plate, and a paint bucket limiting structure is fixed to the upper surface of the base plate. The long rod is connected to the mounting plate via an adjustment structure, and the roller brush is detachably connected to one end of the long rod via a connecting structure. The adjustment structure includes a longitudinally positioned sliding rod and a sliding sleeve fitted onto the sliding rod. The two ends of the sliding rod are rotatably connected to the inner surfaces of the tops of the two mounting plates. The sliding sleeve is slidably connected to the sliding rod, and the sliding rod rotates with the sliding sleeve. A connecting block is fixed to the surface of the sliding sleeve, and a sliding hole is opened on the side of the connecting block. The long rod passes through the sliding hole and is horizontally connected to the mounting plate. The connecting block is slidably connected; the limiting structure of the paint bucket includes a suction mechanism and an adsorption mechanism. The adsorption mechanism includes a perforated plate opened in the bottom plate, and a suction chamber arranged horizontally in the bottom plate below the perforated plate; the suction mechanism includes a suction chamber with an upper opening in the vertical direction in the mounting plate, and the suction chamber is connected to the suction chamber. A piston is slidably connected in the suction chamber. The piston is provided with a one-way valve that supplies gas only so that the lower end of the piston flows to the upper end of the piston. A limiting ring is provided at the lower end of the piston. A spring is connected between the limiting ring and the piston. The end of the sliding rod extends into the suction chamber and is fixedly connected to a disc cam. The cam abuts against the piston; the holes of the perforated plate can be completely covered by the bottom of the paint bucket.

2. The paint applicator according to claim 1, characterized in that: The connection structure includes a connecting frame and a mounting column fixed to the end of the connecting frame. The connecting frame is connected to one end of a long rod, and the roller brush cylinder is rotatably connected to the mounting column. One end of the mounting column has a threaded cavity, and the other end has a movable cavity communicating with the threaded cavity. The movable cavity is provided with a movable block. One end of the movable block is fixed to a limiting post, and one end of the limiting post extends out of the other end of the mounting column and is rotatably connected to the roller brush cylinder. The threaded cavity is threadedly connected to a threaded plate.

3. A paint applicator according to claim 1, characterized in that: The paint bucket limiting structure includes a symmetrically arranged movable plate and a fixed plate. The fixed plate is detachably connected to the upper surface of the base plate. Both ends of the fixed plate are rotatably connected to screws. One end of each screw is movably connected to both ends of the movable plate and passes through the movable plate to be connected to a nut.

4. A paint applicator according to claim 3, characterized in that: The movable plate includes an arc-shaped movable clamping plate, with strip-shaped first end plates fixed to both ends of the movable clamping plate. The fixed plate includes an arc-shaped fixed clamping plate, with strip-shaped second end plates fixed to both ends of the fixed clamping plate. One end of the screw is rotatably connected to the second end plate, and the other end is movably connected to the second end plate. The paint bucket is clamped between the movable clamping plate and the fixed clamping plate.

5. A paint applicator according to claim 1, characterized in that: The long rod includes a secondary rod and a main rod that are detachably connected together. The secondary rod is slidably connected to the connecting block, and the main rod is fixedly connected to the connecting frame.

6. A paint applicator according to claim 5, characterized in that: The connecting frame has a U-shaped structure, and mounting posts are fixed to both ends of the connecting frame.

7. A paint applicator according to claim 2, characterized in that: The movable block is splinedly connected to the movable cavity. The outer diameter of the movable cavity is the same as the diameter of the threaded cavity, and the side of the threaded plate away from the movable cavity has an operating groove.

8. A paint applicator according to claim 1, characterized in that: The perforated plate has a pedal at one end, and the end of the perforated plate with the pedal is rotatably connected to the base plate. The side wall of the perforated plate is provided with a sealing strip.

9. A paint applicator according to claim 1, characterized in that: The holes in the perforated plate are arranged in a circular pattern, and the diameter of the circle is smaller than the diameter of the bottom of the paint bucket.

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