A refillable barrel brush

Abstract

The application relates to a refilling drum brush which comprises a handle, a connecting arm, a drum and a pushing element, the pushing element has a pushing end, the drum is provided with a material discharging cavity and a material supplying cavity which are communicated with each other, the drum body of the drum is provided with a plurality of discharging holes, a brush sleeve is communicated with the material discharging cavity through the discharging holes, the pushing end is arranged in the material discharging cavity and the pushing end is reciprocally displaced along the material supplying cavity, wherein the amount of paint reaching the brush sleeve is controlled by the pushing distance of the pushing element, the amount of paint reaching the brush sleeve is controllable, the paint falling amount of the drum brush is reduced, the construction personnel does not need to wait for the excess paint on the brush sleeve to flow back and then carries out the brushing work, the time for the brush sleeve to obtain the paint is reduced, and the brushing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of painting equipment, and more specifically to a refillable roller brush. Background Technology

[0002] During home renovation, roller brushes are typically used to apply paint to the walls.

[0003] In existing technology, roller brushes mainly consist of a handle, a connecting arm, and a roller. A brush sleeve is fitted onto the surface of the roller. When painting walls, workers typically dip the roller into the paint. After the roller has absorbed enough paint, the worker uses the roller brush to paint the wall. However, the worker needs to repeatedly dip the roller brush into the paint to refill it. Each time the roller brush is dipped, because there is a lot of paint on the brush sleeve, a significant amount of paint will fall onto the ground while the roller brush is being moved to the wall. Therefore, after the roller brush is dipped in paint, it is usually necessary to wait for a period of time for the excess paint on the roller to flow back into the paint bucket before the roller brush can be used to continue painting. This process is time-consuming and makes the use of roller brushes inconvenient. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a refillable roller brush.

[0005] The main concept is:

[0006] A refillable roller brush, characterized in that it comprises:

[0007] grip;

[0008] A connecting arm is fixedly connected to the handle;

[0009] A roller, rotatably connected to the connecting arm, has a brush sleeve fitted on its outer wall, a discharge chamber circumferentially arranged on its inner wall, and a feeding chamber containing paint at its center. The discharge chamber and the feeding chamber are connected. The roller body has multiple discharge holes, and the brush sleeve is connected to the discharge chamber through these discharge holes.

[0010] A pusher is disposed at one end of the roller and connected to the connecting arm. The pusher has a pusher end disposed in the feeding chamber. The pusher end moves back and forth along the axial direction of the feeding chamber. When painting the wall, the pusher end of the pusher moves along the axis of the feeding chamber, thereby pushing the paint in the feeding chamber. The paint in the feeding chamber enters the discharge chamber through the connecting pipe. The paint in the discharge chamber reaches the brush sleeve through the discharge hole, thereby wetting the brush sleeve. At this time, the construction worker can use the roller brush to paint the wall.

[0011] The amount of paint reaching the brush sleeve can be controlled by adjusting the pushing distance of the pusher, making the amount of paint reaching the brush sleeve controllable. This reduces the amount of paint falling off the roller brush, and the construction workers do not have to wait for excess paint to flow back onto the brush sleeve before they can start painting. This reduces the time it takes for the brush sleeve to pick up paint and improves painting efficiency.

[0012] Furthermore, there are two pusher components, which are respectively disposed at both ends of the roller. The pushing ends of the two pusher components act on the coating material simultaneously, resulting in a greater force on the coating material, which makes it easier for the coating material to enter the discharge chamber from the feeding chamber.

[0013] To enable the brush sleeve to quickly acquire paint, the discharge chamber and the supply chamber are connected by a connecting pipe. The two ends of the supply chamber are symmetrically arranged on both sides of the connecting pipe, and the two ends of the discharge chamber are symmetrically arranged on both sides of the connecting pipe. This ensures that after the paint enters the discharge chamber from the supply chamber, the path of the paint overflowing to both ends and the sides of the discharge chamber is shorter, thereby allowing the brush sleeve to quickly acquire paint and reducing the phenomenon of layering when using a roller brush.

[0014] To increase the amount of paint entering the discharge chamber from the feeding chamber per unit time, thereby improving the efficiency of paint acquisition by the brush sleeve, multiple feeding pipes are provided. These multiple connecting pipes are arranged sequentially and at intervals along the circumference of the outer wall of the feeding chamber. The arrangement of multiple connecting pipes increases the amount of paint entering the discharge chamber from the feeding chamber per unit time, thereby reducing the time for paint to overflow to various parts of the discharge chamber. This reduces the time for the brush sleeve to acquire paint, thus improving the painting efficiency.

[0015] In a more complete solution, the handle is equipped with a control component, and the pusher is electrically connected to the control component. The control component controls the pusher end of the pusher to move back and forth along the axial direction of the feeding chamber. The operator can control the displacement of the pusher end through the control component, thereby controlling the output of paint to the brush sleeve. This allows the operator to replenish and wet the brush sleeve while painting, improving painting efficiency.

[0016] To further improve the wetting efficiency of the brush sleeve, the roller brush also includes a discharge block with a receiving cavity. The discharge block has a first connecting hole and a second connecting hole, which are arranged alternately. The discharge block passes through the brush sleeve and the discharge cavity, and a return spring is provided between one end of the discharge block and the inner wall of the discharge cavity. When the return spring is compressed, the first connecting hole is located between the brush sleeves, and the second connecting hole is located in the discharge cavity. When the return spring is reset, both the first connecting hole and the second connecting hole are located between the brush sleeves. When the discharge block contacts the wall, it is squeezed by the wall and displaced in the direction towards the discharge cavity, thereby compressing the return spring. At this time, the first connecting hole is located between the brush sleeves, and the second connecting hole is located in the discharge cavity. This allows the paint in the discharge cavity to enter the receiving cavity through the second connecting hole, and then reach the brush sleeve through the first connecting hole from the receiving cavity. This allows the paint to directly start wetting from the middle of the brush sleeve, thereby making the brush sleeve wetting efficiency faster and improving the brushing efficiency of the roller brush.

[0017] Furthermore, the top of the discharge block is also provided with a coating end and a third connecting hole, and the coating end and the receiving cavity are connected through the third connecting hole.

[0018] Furthermore, the coating end is hemispherical.

[0019] In some embodiments, the number of discharge blocks is multiple, and the multiple discharge blocks are spaced apart along the roller body.

[0020] Furthermore, the feeding chamber is provided with a feed inlet and an end cap on the side end. The end cap is disposed at the feed inlet and the end cap is detachably connected to the feed inlet.

[0021] Compared with the prior art, the present invention provides a refillable roller brush that controls the amount of paint reaching the brush sleeve by pushing the distance of the pusher, making the amount of paint reaching the brush sleeve controllable, avoiding the brush sleeve from picking up too much paint, thereby reducing the amount of paint falling off the roller brush. This eliminates the need for construction workers to wait for excess paint on the brush sleeve to flow back before painting, thus reducing the time for the brush sleeve to pick up paint and improving painting efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1This is a front cross-sectional view of a refillable roller brush provided in Embodiment 1 of the present invention;

[0024] Figure 2 This is a side cross-sectional view of a refillable roller brush provided in Embodiment 1 of the present invention;

[0025] Figure 3 This is a front view of a refillable roller brush provided in Embodiment 1 of the present invention;

[0026] Figure 4 This is a rear view of a refillable roller brush provided in Embodiment 1 of the present invention.

[0027] Figure 5 This is a schematic diagram of the side cross-sectional structure of the roller of a refillable roller brush provided in Embodiment 1 of the present invention;

[0028] Figure 6 This is a partially enlarged structural diagram of part A of a refillable roller brush provided in Embodiment 1 of the present invention;

[0029] Figure 7 This is a front cross-sectional view of a refillable roller brush provided in Embodiment 2 of the present invention;

[0030] Figure 8 This is a side cross-sectional view of a refillable roller brush provided in Embodiment 2 of the present invention;

[0031] Figure 9 This is a front view of a refillable roller brush according to Embodiment 2 of the present invention;

[0032] Figure 10 This is a rear view schematic diagram of a refillable roller brush provided in Embodiment 2 of the present invention;

[0033] Figure 11 This is a schematic diagram of the side cross-sectional structure of the roller of a refillable roller brush provided in Embodiment 2 of the present invention;

[0034] Figure 12 This is a partially enlarged structural diagram of part B of a refillable roller brush provided in Embodiment 2 of the present invention;

[0035] Figure 13 This is a schematic diagram of the discharge block of a refillable roller brush provided in Embodiment 2 of the present invention;

[0036] Figure 14 This is a front cross-sectional view of a refillable roller brush provided in Embodiment 3 of the present invention.

[0037] Explanation of markings in the diagram

[0038] 100-grip

[0039] 200-Connecting arm,

[0040] 300 - Roller, 310 - Discharge chamber, 320 - Feeding chamber, 330 - Discharge hole, 340 - Counting rod

[0041] 400 - Brush sleeve, 410 - Upper sleeve wall, 420 - Lower sleeve wall

[0042] 500 - Pusher component, 510 - Pusher end, 511 - Pusher plate

[0043] 600 - Connecting pipe,

[0044] 700 - Control component, 710 - Push button, 720 - Reset button, 730 - Control unit, 740 - Speed ​​regulator.

[0045] 800 - Discharge block, 810 - Receiving cavity, 820 - First connecting hole, 830 - Second connecting hole, 840 - Return spring, 850 - Coating end, 860 - Third connecting hole.

[0046] 900 - Feed inlet, 910 - End cap

[0047] 1000-round count unit. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0049] This application is described below with reference to the accompanying drawings and specific embodiments:

[0050] Example 1

[0051] Please see Figures 1-6 This embodiment provides a refillable roller brush, including a handle 100, a connecting arm 200, a roller 300, and a pusher 500. The refillable roller brush provided in this embodiment is mainly used when the roller brush runs out of paint while painting a wall, and when it needs to be dipped in paint, the roller 300 can be quickly refilled from inside the roller brush.

[0052] The handle 100 is fixedly connected to the connecting arm 200. The roller 300 is rotatably mounted on the connecting arm 200. Specifically, both ends of the roller 300 are rotatably connected to the connecting arm 200. A brush sleeve 400 is fitted on the roller 300. When painting the wall, the construction worker dips the roller 300 into the container containing paint, then takes the roller 300 out and waits on top of the container for a period of time before using the roller brush to paint the wall.

[0053] The drum 300 has a feeding chamber 320 and a discharging chamber 310 that are interconnected. Specifically, the feeding chamber 320 is arranged along the axial direction of the drum 300 and is coaxial with the drum 300 and the drum body. The discharging chamber 310 is arranged inside the drum 300 and is arranged circumferentially along the inner wall of the drum 300. The circle formed by the outer wall of the discharging chamber 310 is coaxial with the drum body.

[0054] The cylinder of the roller 300 is provided with a discharge hole 330, so that the paint in the discharge chamber 310 can reach the brush sleeve 400 through the discharge hole 330, so that the brush sleeve 400 is wetted by the paint, and then the roller brush applies the paint to the wall.

[0055] There are multiple discharge holes 330, which are arranged on the outer wall of the cylinder and spaced apart in sequence along the circumference of the drum 300. The number and arrangement order of the discharge holes 330 can be set according to the specific dimensions of the drum 300.

[0056] The pusher 500 is disposed on the connecting arm 200 and is located at one end of the roller 300. Specifically, the pusher 500 has a pusher end 510, which is disposed in the feeding chamber 320. The body of the pusher 500 is disposed on the connecting arm 200. Furthermore, the body of the pusher 500 and the pusher end 510 are coaxially disposed with the feeding chamber 320, so that the resistance encountered when the pusher end 510 moves back and forth along the axial direction of the feeding chamber 320 is small.

[0057] For further details, please refer to Figure 1 The end of the pusher end 510 away from the body of the pusher component 500 is provided with a pusher plate, the size of which is adapted to the size of the feeding chamber 320.

[0058] When painting the wall, the pushing end 510 of the pusher 500 moves along the axis of the feeding chamber 320, thereby pushing the paint in the feeding chamber 320. The paint in the feeding chamber 320 enters the discharge chamber 310 through the connecting pipe 600. The paint in the discharge chamber 310 reaches the brush sleeve 400 through the discharge hole 330, thus wetting the brush sleeve 400. At this time, the construction worker can use a roller brush to paint the wall. The amount of paint reaching the brush sleeve 400 can be controlled by the pushing distance of the pusher 500, making the amount of paint reaching the brush sleeve 400 controllable, thereby reducing the amount of paint falling off the roller brush. Moreover, the construction worker does not have to wait for the excess paint on the brush sleeve 400 to flow back before painting, thereby reducing the time when the brush sleeve 400 gets paint and improving painting efficiency.

[0059] For a more complete solution, please refer to Figures 1-4 The pusher 500 can be an electric telescopic rod, an electro-hydraulic cylinder, or a push rod, etc. In this embodiment, the pusher 500 is an electric telescopic rod, wherein a control element 700 is provided at one end of the handle 100, and the pusher 500 is electrically connected to the control element 700.

[0060] Furthermore, the control unit 700 has a push button 710, a reset button 720, and a control unit 730. Specifically, the push button 710 and the reset button 720 are both electrically connected to the control unit 730, and the pusher 500 is electrically connected to the control unit 730. The push button 710 is used to control the push end 510 of the pusher 500 to move axially along the feeding chamber 320, thereby pushing the coating into the discharge chamber 310. The reset button 720 is used to control the push end 510 of the pusher 500 to reset, thereby replenishing the feeding chamber 320.

[0061] Specifically, when painting the wall, the worker presses the push button 710. The control unit 730 receives the signal from the push button 710 and sends a signal to the pusher 500, causing the pusher end 510 of the pusher 500 to move axially along the feeding chamber 320, pushing the paint in the feeding chamber 320 into the discharging chamber 310, so that the brush sleeve 400 can pick up the paint. When the brush sleeve 400 has picked up enough paint, the worker presses the push button 710 again. The control unit 730 receives the signal and sends a signal to the pusher 500, causing the pusher end 510 of the pusher 500 to stop moving. When the paint in the feeding chamber 320 is exhausted, it is necessary to replenish the paint in the feeding chamber 320. At this time, the construction personnel press the reset button 720, the control unit 730 receives the signal and sends a signal to the pusher 500. The pusher end 510 moves along the axial direction of the feeding chamber 320 and toward the body of the pusher 500. When the pusher end 510 is reset, the pusher end 510 automatically stops moving. At this time, the feeding chamber 320 has enough space to replenish the paint.

[0062] The construction worker can control the displacement of the push end 510 by pushing the button 710 and the reset button 720, thereby controlling the output of paint to the brush sleeve 400. This allows the construction worker to replenish and wet the brush sleeve 400 while painting, thus improving the painting efficiency.

[0063] For further details, please refer to Figures 1-6 The discharge chamber 310 and the supply chamber 320 are connected by a connecting pipe 600. The two ends of the supply chamber 320 are symmetrically arranged on both sides of the connecting pipe 600, and the two ends of the discharge chamber 310 are also symmetrically arranged on both sides of the connecting pipe 600. There are two pushers 500, each electrically connected to a push button 710 and a reset button 720. The two pushers 500 are respectively located at both ends of the roller 300 and connected to the connecting arm 200. During coating, the pushing ends 510 of the two pushers 500 simultaneously move towards the connecting channel under the control of the control unit 730, thereby conveying the paint from the supply chamber 320 to the discharge chamber 310. The discharge chamber 310 has two pusher ends 510 of the pusher 500 acting simultaneously on the paint, resulting in a greater force on the paint. This makes it easier for the paint to enter the discharge chamber 310 from the feed chamber 320. At the same time, the two ends of the connecting pipe 600 are respectively located in the middle of the feed chamber 320 and the discharge chamber 310, which shortens the flow path of the paint. Specifically, after the paint enters the discharge chamber 310 from the feed chamber 320, the overflow path of the paint in the discharge chamber 310 to both ends and the sides of the discharge chamber 310 is shorter. This allows the brush sleeve 400 to quickly pick up the paint and reduces the phenomenon of layering when the roller brush is used for painting.

[0064] In order to increase the amount of paint entering the discharge chamber 310 from the feeding chamber 320 per unit time, thereby improving the efficiency of the brush sleeve 400 in acquiring paint, in this embodiment, there are multiple connecting pipes 600. One end of the multiple connecting pipes 600 is arranged sequentially at intervals along the outer wall of the feeding chamber 320. The number of connecting pipes 600 can be determined according to the specific size of the feeding chamber 320 and the pipe diameter of the connecting pipes 600.

[0065] The arrangement of multiple connecting pipes 600 increases the amount of paint entering the discharge chamber 310 from the feeding chamber 320 per unit time, thereby reducing the time it takes for the paint to overflow to various parts of the discharge chamber 310, which in turn reduces the time it takes for the brush sleeve 400 to pick up the paint, thus improving the painting efficiency.

[0066] In this embodiment, according to the roller brush described above, while multiple connecting pipes 600 are arranged sequentially and spaced apart along the circumference of the feeding chamber 320, the multiple connecting pipes 600 can also be arranged sequentially and spaced apart along the circumference of the feeding chamber 320, thereby increasing the amount of paint entering the discharge chamber 310 from the feeding chamber 320, and increasing the number of paint overflow points in the discharge chamber 310 to various parts of the discharge chamber 310, thereby reducing the time for paint to overflow to various parts of the discharge chamber 310, thus reducing the time for the brush sleeve 400 to obtain paint, thereby improving the brushing efficiency.

[0067] Furthermore, the feeding chamber 320 is provided with an inlet 900 and an end cap 910. The end cap 910 is located at the inlet 900 and is detachably connected to the inlet 900. Specifically, the inlet 900 is located on the outer wall of the feeding chamber 320 in the circumferential direction, and the end cap 910 is sealed to the inlet 900. When the feeding needs to be replenished, the end cap 910 is removed from the inlet 900, and a hose is used to connect the inlet 900 to the container containing the paint. Then, a vacuum pump or other equipment is used to transport the paint to the feeding chamber 320.

[0068] The outer wall of the feeding chamber 320 is also equipped with an observation board. Specifically, the observation board can be made of materials such as glass or transparent plastic, so that construction personnel can observe the usage of the paint in the feeding chamber 320 at any time and replenish the feeding chamber 320 accordingly. At the same time, when replenishing the feeding chamber 320, the replenishment of paint in the feeding chamber 320 can also be observed through the observation board to prevent the paint in the feeding chamber 320 from overflowing due to excessive paint.

[0069] Example 2

[0070] To improve the efficiency of paint wetting of the brush sleeve 400, please refer to... Figures 7-13 According to the above-mentioned replenishable roller brush, the roller brush further includes a discharge block 800, which is provided with a receiving cavity 810. The discharge block 800 passes through the brush sleeve 400 and the discharge cavity 310, and one end of the discharge block 800 is higher than the brush sleeve 400. A return spring 840 is provided at the bottom of the discharge block 800, and the other end of the return spring 840 is connected to the inner wall of the discharge cavity 310 away from the brush sleeve 400.

[0071] For further details, please refer to Figures 7-13The discharge block 800 is provided with a first connecting hole 820 and a second connecting hole 830. The brush sleeve 400 has an upper sleeve wall 410 and a lower sleeve wall 420. The upper sleeve wall 410 contacts the wall, and the lower sleeve wall 420 contacts the discharge hole 330. Specifically, the first connecting hole 820 and the second connecting hole 830 are both provided on the side wall of the discharge block 800. The first connecting hole 820 is provided above the second connecting hole 830, and both the first connecting hole 820 and the second connecting hole 830 are located between the upper sleeve wall 410 and the lower sleeve wall 420 of the brush sleeve 400. When the construction worker uses a roller brush to paint the wall, when the discharge block 800 contacts the wall, it is squeezed by the wall, and the discharge block 800 moves in the direction toward the discharge cavity 310, thereby compressing the return spring 840. At this time, the first connecting hole 820 is compressed. A first connecting hole 820 is located between the upper sleeve wall 410 and the lower sleeve wall 420 of the brush sleeve 400, and a second connecting hole 830 is located in the discharge chamber 310. This allows the paint in the discharge chamber 310 to enter the receiving chamber 810 through the second connecting hole 830, and then from the receiving chamber 810 through the first connecting hole 820 to the sleeve body between the upper sleeve wall 410 and the lower sleeve wall 420 of the brush sleeve 400. Since the first connecting hole 820 is located between the upper sleeve wall 410 and the lower sleeve wall 420, the paint can directly penetrate from the middle sleeve body of the brush sleeve 400 into the upper sleeve wall 410 and the lower sleeve wall 420 of the brush sleeve 400. This results in a faster wetting efficiency of the upper sleeve wall 410 and the brush sleeve 400, thereby improving the painting efficiency of the roller brush.

[0072] In this embodiment, compared to Example 1, when the worker applies the coating, the push button is activated, and the pusher end of the pusher pushes the coating from the supply chamber to the discharge chamber. The coating flows from the discharge hole and the squeezed discharge block to the bottom brush sleeve, thus wetting the brush sleeve. During the application, the push button remains in the activated state, causing the pusher end of the pusher to continuously push the coating, thereby providing power for the coating to reach the brush sleeve through the discharge block. When the coating is exhausted, the push button is turned off, and the reset button is activated, causing the pusher end of the pusher to reset, and then the supply chamber is replenished with coating.

[0073] It should be understood that during coating, since the pusher end 510 is constantly in a pushing state, the rate of paint consumption in the discharge chamber 310 needs to be relatively balanced with the difference in pushing speed of the pusher end 510. This ensures that the pressure in the supply chamber 320 is relatively stable, thus avoiding a situation where the pushing speed of the pusher end 510 is faster than the paint consumption rate, resulting in higher pressure in the supply chamber 320 and discharge chamber 310. This would lead to a greater force on the paint in the discharge chamber 310, causing the paint to gush out of the discharge hole 330, resulting in a poor coating effect. Alternatively, if the pushing speed of the pusher end 510 is slower than the paint consumption rate, the rate of paint consumption in the discharge chamber 310 would exceed the rate of paint replenishment, preventing the brush sleeve 400 from acquiring enough paint and causing a layered coating phenomenon when using a roller brush.

[0074] In a more complete solution, the roller brush also includes a speed regulating component 740, which is electrically connected to the pusher component 500 and the control unit 730. It is used to adjust the pushing speed of the pusher end 510, thereby adjusting the supply speed of the paint. This makes the speed at which the paint reaches the brush sleeve 400 from the discharge chamber 310 relatively balanced with the speed at which the paint is applied to the wall, thereby ensuring that the pressure in the supply chamber 320 and the discharge chamber 310 is relatively stable.

[0075] The reset spring 840 is designed so that the discharge block 800 can be reset when it is not squeezed by the wall, thereby making the second connecting hole 830 located between the upper sleeve wall 410 and the lower sleeve wall 420 of the brush sleeve 400, thus preventing excessive paint from soaking into the brush sleeve 400 and resulting in excessive paint on the brush sleeve 400.

[0076] It should be understood that due to the setting of the discharge block 800, when the roller brush is used to paint the wall, there may be areas where the discharge block 800 is in contact with the wall that are not painted, resulting in a gap in the paint. Therefore, the construction workers need to use different parts of the roller brush to paint the unpainted areas again, which is quite time-consuming.

[0077] To avoid the phenomenon of wall discontinuity during painting, in a more complete solution, the discharge block 800 is provided with a third connecting hole 860, wherein the third connecting hole 860 is located at the top of the discharge block 800.

[0078] For further details, please refer to Figure 13 The top of the discharge block 800 is provided with a paint end 850, wherein the bottom of the paint end 850 is provided on the third connecting hole 860, so that the paint in the receiving cavity 810 can be transported to the paint end 850 through the third connecting hole 860, so that the paint end 850 is wetted by the paint, and thus the area where the discharge block 800 contacts the wall can also be coated with paint.

[0079] For further details, please refer to Figure 13 The coating end 850 is a hemisphere, with a spherical top and a spherical cross-section at the bottom. This design ensures that the discharge block 800 will not damage the wall surface when it comes into contact with the wall. In addition, the discharge block 800 makes smooth contact with the wall and is easy to move.

[0080] Please refer to Figures 7-11 There are multiple discharge blocks 800, which are arranged sequentially and at intervals along the body of the roller 300. Specifically, the number and arrangement of discharge blocks 800 can be selected according to the number and arrangement of discharge holes 330.

[0081] The feeding chamber 320 is equipped with a pressure sensor, which is electrically connected to the control unit 730 and the push button 710. The pressure sensor measures the pressure in the feeding chamber 310. Specifically, the pressure sensor has a measurement threshold. When painting is performed, the pressure sensor is activated after the push button 710 is turned on. At this time, the pressure sensor measures the pressure in the feeding chamber 320. When the pressure in the feeding chamber 320 is outside the measurement threshold range, the pressure sensor sends a signal to the control unit 730, which in turn sends a signal to the speed regulating component 740. The speed regulating component 740 sends a signal to the pusher component 500, thereby adjusting the pushing speed of the pusher end 510 of the pusher component 500. This keeps the pressure in the feeding chamber 320 in a relatively stable state, thus making the consumption rate and replenishment rate in the feeding chamber 310 relatively stable.

[0082] Example 3

[0083] Please see Figure 14 To improve coating efficiency, the roller brush described above also includes a rotation counter 1000, which is used to count the number of rotations of the roller 300. Specifically, the rotation counter 1000 can be an infrared reflective counter, an infrared through-beam counter, or a Hall counter. In this embodiment, the rotation counter 1000 is an infrared reflective counter.

[0084] Specifically, an infrared reflective counter is installed on the connecting arm 200 and emits infrared rays toward the roller 300. The infrared reflective counter is electrically connected to the control unit 730. The roller is equipped with a counting rod 340. The infrared reflective counter is located at the lower end of the pusher 500. One end of the counting rod 340 is arranged along the axial direction perpendicular to the feeding chamber 320 at one end of the roller 300, and the length of the counting rod 340 does not exceed the radius of the top surfaces at both ends of the roller 300. When the roller 300 rotates, the counting rod 340 rotates with the roller 300 and passes through the infrared rays of the infrared reflective counter during rotation, thereby causing the infrared reflective counter to count. Specifically, when the roller 300 is used for brushing, the operator presses the push button 710, and the pusher end 510 pushes the paint in the feeding chamber 320 toward the discharge chamber 310. After the brush sleeve 400 is soaked in paint, the operator presses the push button 710 to push the brush sleeve 400. When the material end 510 stops pushing, the construction worker uses a roller brush to paint the wall. The counting rod 340 rotates with the roller 300. Each time the counting rod 340 passes the infrared light emitted by the infrared reflective counter, the infrared reflective counter counts the number of rotations of the roller 300. After the roller 300 has rotated a specified number of times, the infrared reflective counter sends a signal to the control unit 730, which then sends a signal to the pusher component 500, causing the pusher end 510 of the pusher component 500 to push the paint. After the pusher end has pushed for a certain period of time, the control unit 730 sends a signal to the pusher component 500, and the pusher component 500 stops pushing. The above steps are repeated, so that when the construction worker uses a roller brush to paint, after manually controlling the pusher component 510 to push the paint for the first time, the pusher component 500 can automatically push the paint thereafter, making the use of the roller brush simpler and improving the painting efficiency.

[0085] In this case, Example 3 is applied to Example 1.

[0086] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A refillable barrel brush characterized in that, include: Grip (100); A connecting arm (200) is fixedly connected to the handle (100); A roller (300) is rotatably connected to the connecting arm (200). A brush sleeve (400) is fitted on the outer wall of the roller (300). A discharge chamber (310) is provided circumferentially on the inner wall of the roller (300). A feeding chamber (320) containing paint is provided at the center of the roller (300). The discharge chamber (310) and the feeding chamber (320) are connected. The cylinder of the roller (300) is provided with multiple discharge holes (330). The brush sleeve (400) is connected to the discharge chamber (310) through the discharge holes (330). and A pusher (500) is disposed at one end of the roller (300) and connected to the connecting arm (200). The pusher (500) has a pusher end (510), which is disposed in the feeding chamber (320). The pusher end (510) moves back along the axial direction of the feeding chamber (320). The roller brush also includes a discharge block (800) with a receiving cavity (810). The discharge block (800) has a first connecting hole (820) and a second connecting hole (830). The first connecting hole (820) and the second connecting hole (830) are arranged alternately. The discharge block (800) passes through the brush sleeve (400) and the discharge cavity (310). A return spring (840) is provided between one end of the discharge block (800) and the inner wall of the discharge cavity (310). When the return spring (840) is compressed, the first connecting hole (820) is located between the brush sleeves (400), and the second connecting hole (830) is located inside the discharge cavity (310). When the return spring (840) is reset, both the first connecting hole (820) and the second connecting hole (830) are located between the brush sleeves (400). The top of the discharge block (800) is also provided with a coating end (850) and a third connecting hole (860), and the coating end (850) and the receiving cavity (810) are connected through the third connecting hole (860).

2. The refillable barrel brush of claim 1, wherein, The number of the pusher (500) is two, and the two pushers (500) are respectively disposed at both ends of the roller (300).

3. The refillable barrel brush of claim 2, wherein, The discharge chamber (310) and the feeding chamber (320) are connected by a connecting pipe (600). The two ends of the feeding chamber (320) are symmetrically arranged on both sides of the connecting pipe (600), and the two ends of the discharge chamber (310) are symmetrically arranged on both sides of the connecting pipe (600).

4. The refillable barrel brush of claim 3, wherein, The number of the connecting pipes (600) is multiple, and one end of the multiple connecting pipes (600) is arranged sequentially at intervals along the circumference of the outer wall of the feeding chamber (320).

5. The refillable barrel brush of claim 1, wherein, The grip (100) is provided with a control element (700), and the pusher (500) is electrically connected to the control element (700). The control element (700) controls the pusher end (510) of the pusher (500) to move back and forth along the axial direction of the feeding chamber (320).

6. The refillable roller brush according to claim 1, characterized in that, The coating end (850) is a hemisphere.

7. The replenishable roller brush according to claim 1, characterized in that, The number of discharge blocks (800) is multiple, and the multiple discharge blocks (800) are arranged at intervals along the body of the roller (300).

8. The refillable roller brush according to claim 1, characterized in that, The feeding chamber (320) is provided with a feed inlet (900) and an end cap (910). The end cap (910) is located at the feed inlet (900) and is detachably connected to the feed inlet (900).

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