Wall painting tool

Abstract

The utility model belongs to the technical field of wall painting, and discloses a wall painting tool which comprises a main pipe, a syringe, a piston head, a connecting rod and a driving assembly, a containing box is arranged at one end of the syringe, a first through hole is formed in one end of the syringe, a second through hole is formed in the containing box, and a first one-way valve is jointly arranged in the first through hole and the second through hole; a third through hole is formed in the cylinder body on one side of the injection cylinder, a second one-way valve is arranged in the third through hole, vertical plates are arranged on the two sides of the containing box, a brush roller is rotationally arranged between the two vertical plates, and sponge pieces are arranged on the two sides of the second through hole in the containing box. The driving assembly drives the connecting rod to move and drives the piston head to move, so that paint in the paint bucket enters the injection cylinder through the second one-way valve, and in the brushing process, the driving assembly drives the connecting rod and the piston head to move towards the first one-way valve at a constant speed, so that the paint in the injection cylinder is extruded out of the first one-way valve and is attached to the brush roller; and uniform painting of the paint is ensured.

Description

Technical Field

[0001] This utility model relates to the field of wall painting technology, and in particular to a wall painting tool. Background Technology

[0002] When painting walls, a roller is usually used for large-area application. The roller needs to be dipped into a paint bucket to pick up paint before being applied to the wall. During the painting process, the roller needs to be moved back and forth to pick up more paint, making the operation quite cumbersome.

[0003] Chinese utility model patent CN220267125U discloses a wall painting tool, including a main rod with a storage box connected to the top of the main rod. The storage box has an upward-opening storage cavity, and the left and right sides of the storage box are connected to upward-extending connecting ears. A brush roller has its two ends rotatably connected between the two connecting ears, and the bottom side of the brush roller is located in the storage cavity. A touch-up cotton is located in the storage cavity and abuts against the outer circumference of the brush roller. The main rod has a hollow structure, and a sealing head is connected to the inner top of the main rod. A movable shaft is slidably connected in the vertical direction inside the sealing head. The top of the movable shaft passes through the touch-up cotton and is connected to a pressure rod. The pressure rod extends in the horizontal direction, and the touch-up cotton is located on both the front and rear sides of the pressure rod, abutting against the outer circumference of the brush roller. In use, the user holds the main rod and immerses the brush roller and its storage box into the paint bucket. The brush roller and the touch-up cotton in the storage chamber absorb the paint. Then, the brush roller is pressed against the wall surface for painting. As the brush roller rotates, the touch-up cotton comes into contact with the outer circumference of the brush roller. Through the squeezing action of the brush roller on the touch-up cotton and the contact with the touch-up cotton, the paint in the touch-up cotton can penetrate into the brush roller. If the amount of paint squeezed out by directly rotating the brush roller is insufficient, the movable shaft can be pulled down. The movable shaft moves downward in the sealing head, causing the pressure rod to squeeze the touch-up cotton, and the paint in the touch-up cotton is further squeezed out and released.

[0004] Regarding the aforementioned technologies, the inventors believe the following drawbacks exist: When the tools are immersed in the paint bucket, the brush roller and touch-up cotton absorb a large amount of paint, resulting in a thicker paint layer applied by the brush roller. However, when the brush roller rotates and the amount of paint squeezed onto the touch-up cotton is insufficient, the paint layer applied by the brush roller becomes thinner. At this time, by pulling the movable shaft, the pressure bar applies pressure to the touch-up cotton, causing the paint inside the cotton to be further squeezed and released to replenish the brush roller, thus making the applied paint layer thicker, which leads to uneven application. In addition, the touch-up cotton has a limited capacity to absorb paint, so workers still need to frequently re-immerse the touch-up cotton and brush roller in the paint bucket, which is inconvenient. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a wall painting tool.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a wall painting tool, including a main tube, an injection cylinder at the end of the main tube, a piston head slidably disposed inside the injection cylinder, a connecting rod disposed on the side of the piston head near the main tube, a driving assembly for driving the connecting rod to move disposed inside the main tube, a receiving box disposed at the end of the injection cylinder away from the main tube, a first through hole opened at the end of the injection cylinder away from the main tube, a second through hole opened on the receiving box corresponding to the first through hole, a first one-way valve that only allows paint in the injection cylinder to flow outwards is disposed in both the first and second through holes, the outer wall of the first one-way valve is in contact with the hole walls of the first and second through holes, a third through hole is opened on the cylinder body away from the main tube, a second one-way valve that only allows paint to flow into the injection cylinder is disposed in the third through hole, upright plates are disposed on both sides of the receiving box, a brush roller is rotatably disposed between the two upright plates, a sponge sheet is disposed on both sides of the second through hole inside the receiving box, and the surface of the brush roller is in contact with the sponge sheet.

[0007] By adopting the above technical solution, an injection cylinder, piston head, drive assembly, and brush roller are included. During use, the operator holds the main pipe and immerses the brush roller and second one-way valve into the paint bucket, allowing the brush roller to absorb paint. Simultaneously, the drive assembly moves the connecting rod, which in turn moves the piston head, causing the paint in the paint bucket to flow through the second one-way valve into the injection cylinder. The injection cylinder can hold a larger amount of paint, reducing the frequency of immersing the brush roller in the paint bucket and making it more convenient. Subsequently, the operator holds the main pipe and places the brush roller against the wall for painting. During painting, the drive assembly moves the connecting rod and piston head at a constant speed towards the first one-way valve, causing the paint in the injection cylinder to be squeezed out through the first one-way valve. Two sponge pads are positioned on either side of the second through-hole, forming a receiving groove between them. The paint flowing out of the first one-way valve is placed in this groove and then adheres to the brush roller, ensuring a constant replenishment of paint and thus guaranteeing even paint application.

[0008] Furthermore, the length direction of the brush roller is consistent with the length direction of the receiving box, and the length direction of the sponge sheet is consistent with the length direction of the receiving box.

[0009] Furthermore, the bottom of the container box is provided with an installation groove, the length direction of the installation groove is consistent with the length direction of the container box, a square tube is provided in the installation groove, the end of the first one-way valve is connected to the square tube, and a number of through holes are provided at intervals along the length direction of the square tube on the side away from the first one-way valve.

[0010] By adopting the above technical solution, a square tube and a through hole are set up so that the paint flowing out from the first one-way valve reaches into the square tube and then flows out from the through hole, ensuring that the paint flows out evenly and avoiding excessive paint accumulation at the outlet of the first one-way valve.

[0011] Furthermore, a number of sponge strips are spaced apart on the side of the sponge sheet near the brush roller, and the sponge strips are in contact with the surface of the brush roller.

[0012] By adopting the above technical solution, several sponge strips are spaced apart on the side of the sponge sheet near the brush roller. When a lot of paint adheres to the surface of the brush roller, the sponge strips absorb the paint, ensuring that the paint adheres evenly on the brush roller, thereby ensuring that the paint is applied evenly.

[0013] Furthermore, scraper strips are provided on both sides of the receiving box, the length direction of the scraper strips is consistent with the length direction of the receiving box, and one side of the scraper strips is arranged near the surface of the brush roller.

[0014] By adopting the above technical solution, scraper strips are provided on both sides of the container. When a lot of paint adheres to the surface of the brush roller, the scraper strips will scrape off the excess paint, further ensuring the uniformity of the paint adhering to the brush roller.

[0015] Furthermore, the drive assembly includes a mounting plate disposed within the main tube, an electric push rod disposed on the mounting plate, the cylinder of the electric push rod being connected to the mounting plate and the piston rod being connected to the connecting rod, a battery and a controller disposed within the main tube, and several control buttons disposed outside the main tube.

[0016] By adopting the above technical solution, an installation plate, an electric push rod, a battery, and a control button are set up. When the brush roller rolls and the control button is pressed, the signal is transmitted to the controller. The controller starts the electric push rod, which pushes the connecting rod and the piston head to move at a constant speed, squeezing the paint in the injection cylinder, so that the paint flows out from the first one-way valve.

[0017] Furthermore, the upright plate is provided with a rotating hole, and both ends of the brush roller are provided with trunnions, which are rotatably connected to the corresponding rotating hole.

[0018] By adopting the above technical solution and setting up rotating holes and trunnions, the stability of the brush roller rotation is ensured.

[0019] Furthermore, one of the upright plates is detachably connected to the receiving box, and a connecting plate is detachably provided on one side of the receiving box. The connecting plate has several round holes, and a threaded hole is provided on one side of the receiving box corresponding to the round holes. A bolt passes through the round holes and is screwed into the threaded hole to connect the connecting plate to the receiving box. The upright plate adjacent to the connecting plate is detachably connected to the receiving box and fixedly connected to the connecting plate.

[0020] By adopting the above technical solution, a connecting plate and a circular hole are provided. When the brush roller needs to be replaced, first unscrew the bolts, then move the connecting plate to displace the connected vertical plate. At this point, remove the old brush roller and align the trunnion on one side of the new brush roller with the circular hole on the vertical plate fixed to the receiving box. Then, adjust the position of the connecting plate and the vertical plate so that the trunnion on the other side of the brush roller mates with the circular hole on the connecting plate. Finally, pass the bolt through the circular hole and screw it into the threaded hole to firmly connect the connecting plate to the receiving box, ensuring that the vertical plate is fixed, thereby achieving the stability of the brush roller.

[0021] Furthermore, the piston head is provided with several annular grooves spaced apart, and a sealing ring is provided in the annular groove, the sealing ring abutting against the inner wall of the injection cylinder.

[0022] In summary, this utility model has the following beneficial effects: It includes an injection cylinder, a piston head, a drive assembly, and a brush roller. During use, the operator holds the main pipe and immerses the brush roller and the second one-way valve into the paint bucket, allowing the brush roller to absorb paint. Simultaneously, the drive assembly moves the connecting rod, which in turn moves the piston head, causing the paint in the paint bucket to enter the injection cylinder through the second one-way valve. The injection cylinder can hold a larger amount of paint, reducing the frequency of immersing the brush roller in the paint bucket and making it more convenient. Subsequently, the operator holds the main pipe and places the brush roller against the wall for painting. During the painting process, the drive assembly drives the connecting rod and piston head to move at a constant speed towards the first one-way valve, causing the paint in the injection cylinder to be squeezed out from the first one-way valve. Two sponge pads are positioned on both sides of the second through hole, forming a receiving groove between them. The paint flowing out from the first one-way valve is placed in the receiving groove and then adheres to the brush roller, ensuring a constant rate of paint replenishment and thus guaranteeing even paint application. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the driving component according to an embodiment of the present invention;

[0025] Figure 3 yes Figure 2 Enlarged view of part A;

[0026] Figure 4 This is a schematic diagram of the structure of the piston head, receiving box, and brush roller in an embodiment of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the receiving box and brush roller in an embodiment of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the container box according to an embodiment of this utility model.

[0029] In the diagram: 10, main pipe; 20, syringe; 21, first through hole; 22, first one-way valve; 23, third through hole; 24, second one-way valve; 30, piston head; 31, connecting rod; 32, annular groove; 33, sealing ring; 40, drive assembly; 41, mounting plate; 42, electric push rod; 43, battery; 44, controller; 45, control button; 50, receiving box; 51, second through hole; 52, upright plate; 53, mounting groove; 54, square tube; 55, through hole; 56, scraper; 57, rotating hole; 60, brush roller; 61, trunnion; 70, sponge sheet; 71, sponge strip; 80, connecting plate; 81, round hole. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] like Figure 1-6 As shown in the illustration, this application discloses a wall painting tool, including a main pipe 10, an injection cylinder 20, a piston head 30, a drive assembly 40, and a brush roller 60. The injection cylinder 20 is disposed at the end of the main pipe 10, and the piston head 30 is slidably disposed inside the injection cylinder 20. A connecting rod 31 is disposed on the side of the piston head 30 near the main pipe 10, and the length direction of the connecting rod 31 is consistent with the length direction of the main pipe 10. A through hole is formed at the end of the injection cylinder 20 near the main pipe 10, and one end of the connecting rod 31 extends into the main pipe 10 through the through hole. The drive assembly 40 is disposed inside the main pipe 10 and is used to drive the connecting rod 31 to move. A receiving box 50 is disposed at the end of the injection cylinder 20 away from the main pipe 10, and a first through hole 21 is formed at the end of the injection cylinder 20 away from the main pipe 10. A second through hole 51 is formed on the receiving box 50 corresponding to the first through hole 21. A first one-way valve 22 is disposed in both the first through hole 21 and the second through hole 51, and the first one-way valve 22 can only allow the paint in the injection cylinder 20 to flow outward. The outer wall of the first one-way valve 22 is in contact with the walls of the first through hole 21 and the second through hole 51. A third through hole 23 is provided on the side of the syringe 20 away from the main pipe 10. The third through hole 23 is L-shaped and a second one-way valve 24 is provided inside the third through hole 23. The second one-way valve 24 can only allow paint to flow into the syringe 20. The receiving box 50 is provided with upright plates 52 on both sides. The brush roller 60 is rotatably disposed between the two upright plates 52. Sponge sheets 70 are provided on both sides of the second through hole 51 inside the receiving box 50, and the surface of the brush roller 60 is in contact with the sponge sheets 70.

[0032] In use, the operator holds the main pipe 10 and immerses the brush roller 60 and the second one-way valve 24 into the paint bucket, allowing the brush roller 60 to absorb paint. Simultaneously, the drive assembly 40 moves the connecting rod 31, which in turn moves the piston head 30, causing the paint in the paint bucket to flow through the second one-way valve 24 into the injection cylinder 20. The injection cylinder 20 can hold a larger amount of paint, reducing the frequency of immersing the brush roller 60 into the paint bucket and making it more convenient. The operator then holds the main pipe 10 and places the brush roller 60 against the wall for painting. During painting, the drive assembly 40 drives the connecting rod 31 and the piston head 30 to move at a constant speed towards the first one-way valve 22, causing the paint in the injection cylinder 20 to be squeezed out through the first one-way valve 22. Two sponge sheets 70 are positioned on both sides of the second through hole 51, forming a receiving groove between them. The paint flowing out of the first one-way valve 22 is placed in the receiving groove and then adheres to the brush roller 60, ensuring a constant replenishment of paint to the brush roller 60 and thus guaranteeing even paint application. The piston head 30 is provided with several annular grooves 32 spaced apart, and a sealing ring 33 is provided in the annular groove 32. The sealing ring 33 abuts against the inner wall of the injection cylinder 20.

[0033] Specifically, the length direction of the brush roller 60 is consistent with the length direction of the receiving box 50, and the length direction of the sponge sheet 70 is consistent with the length direction of the receiving box 50. Several sponge strips 71 are spaced apart on the side of the sponge sheet 70 adjacent to the brush roller 60. The sponge strips 71 are in contact with the surface of the brush roller 60. When there is a lot of paint adhering to the surface of the brush roller 60, the sponge strips 71 absorb the paint, ensuring the uniformity of paint adhering to the brush roller 60, thus ensuring even paint application. Scraper strips 56 are provided on both sides of the receiving box 50. The length direction of the scraper strips 56 is consistent with the length direction of the receiving box 50, and one side of the scraper strips 56 is arranged adjacent to the surface of the brush roller 60. When there is a lot of paint adhering to the surface of the brush roller 60, the scraper strips 56 scrape off the excess paint, further ensuring the uniformity of paint adhering to the brush roller 60.

[0034] During setup, an installation groove 53 is provided at the bottom of the receiving box 50. The length direction of the installation groove 53 is consistent with the length direction of the receiving box 50. A square tube 54 is installed inside the installation groove 53. The end of the first one-way valve 22 is connected to the square tube 54. Several through holes 55 are provided at intervals along the length direction of the square tube 54 on the side away from the first one-way valve 22, so that the paint flowing out from the first one-way valve 22 reaches into the square tube 54 and then flows out from the through holes 55, ensuring uniform paint flow and avoiding excessive paint accumulation at the outlet of the first one-way valve 22.

[0035] In the specific setup, a rotating hole 57 is provided on the upright plate 52, and trunnions 61 are provided at both ends of the brush roller 60. The trunnions 61 are rotatably connected to the corresponding rotating hole 57 to ensure the stability of the rotation of the brush roller 60. One of the upright plates 52 is detachably connected to the receiving box 50. A connecting plate 80 is detachably provided on one side of the receiving box 50. Several round holes 81 are provided on the connecting plate 80, and threaded holes are provided on one side of the receiving box 50 corresponding to the round holes 81. Bolts are passed through the round holes 81 and screwed into the threaded holes to connect the connecting plate 80 to the receiving box 50. The upright plate 52 adjacent to the connecting plate 80 is detachably connected to the receiving box 50 and fixedly connected to the connecting plate 80. When it is necessary to replace the brush roller 60, first unscrew the bolts, then move the connecting plate 80 to make the upright plate 52 connected to it move. At this time, remove the old brush roller 60 and align the trunnion 61 on one side of the new brush roller 60 with the round hole 81 of the upright plate 52 fixed on the receiving box 50. Next, adjust the positions of the connecting plate 80 and the upright plate 52 so that the trunnion 61 on the other side of the brush roller 60 mates with the round hole 81 of the upright plate 52 on the connecting plate 80. Finally, pass the bolt through the round hole 81 and screw it into the threaded hole to firmly connect the connecting plate 80 to the receiving box 50, ensuring that the upright plate 52 is fixed, thereby stabilizing the brush roller 60.

[0036] The drive assembly 40 includes a mounting plate 41 disposed within the main pipe 10. An electric push rod 42 is mounted on the mounting plate 41. The cylinder of the electric push rod 42 is connected to the mounting plate 41, and its piston rod is connected to the connecting rod 31. A battery 43 and a controller 44 are disposed within the main pipe 10. Several control buttons 45 are disposed outside the main pipe 10. When the brush roller 60 is rolling, pressing a control button 45 transmits a signal to the controller 44. The controller 44 activates the electric push rod 42, which pushes the connecting rod 31 and the piston head 30 to move at a constant speed, squeezing the paint in the injection cylinder 20, causing the paint to flow out from the first one-way valve 22. There are two control buttons 45, which control the extension or retraction of the piston rod of the electric push rod 42.

[0037] The working principle of a wall painting tool in this embodiment is as follows: the worker holds the main pipe 10 and immerses the brush roller 60 and the second one-way valve 24 into the paint bucket, so that the brush roller 60 absorbs the paint. At the same time, the worker presses the control button 45 to control the piston rod of the electric push rod 42 to retract, which drives the connecting rod 31 and the piston head 30 to move, so that the paint in the paint bucket enters the injection cylinder 20 through the second one-way valve 24. Subsequently, the staff member held the main tube 10 and attached the brush roller 60 to the wall for painting. During the painting process, another control button 45 was pressed to control the piston rod of the electric push rod 42 to extend, which drove the connecting rod 31 and the piston head 30 to move at a constant speed toward the first one-way valve 22. This caused the paint in the injection cylinder 20 to be squeezed out from the first one-way valve 22 into the square tube 54 and then flow out from the through hole 55. Two sponge sheets 70 were placed on both sides of the second through hole 51, so that a receiving groove was formed between the two sponge sheets 70. The paint was placed in the receiving groove and then attached to the brush roller 60, ensuring that the paint was replenished to the brush roller 60 at a constant speed, thereby ensuring that the paint was applied evenly.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A wall painting tool, characterized by: The system includes a main tube (10), an injection cylinder (20) at one end of the main tube (10), a piston head (30) slidably disposed inside the injection cylinder (20), a connecting rod (31) disposed on the side of the piston head (30) near the main tube (10), a drive assembly (40) for driving the connecting rod (31) to move disposed inside the main tube (10), a receiving box (50) disposed at the end of the injection cylinder (20) away from the main tube (10), a first through hole (21) opened at the end of the injection cylinder (20) away from the main tube (10), a second through hole (51) opened on the receiving box (50) corresponding to the first through hole (21), and a common opening in the first through hole (21) and the second through hole (51) that can only allow A first one-way valve (22) allows paint to flow outward from the injection cylinder (20). The outer wall of the first one-way valve (22) is in contact with the walls of the first through hole (21) and the second through hole (51). A third through hole (23) is provided on the side of the injection cylinder (20) away from the main pipe (10). A second one-way valve (24) is provided in the third through hole (23) that allows paint to flow into the injection cylinder (20). Upright plates (52) are provided on both sides of the receiving box (50). A brush roller (60) is rotatably arranged between the two upright plates (52). Sponge sheets (70) are provided on both sides of the second through hole (51) in the receiving box (50). The surface of the brush roller (60) is in contact with the sponge sheet (70).

2. A wall painting tool according to claim 1, characterized in that: The length direction of the brush roller (60) is consistent with the length direction of the receiving box (50), and the length direction of the sponge sheet (70) is consistent with the length direction of the receiving box (50).

3. A wall painting tool according to claim 1, characterized in that: The bottom of the container (50) is provided with an installation groove (53), the length direction of the installation groove (53) is consistent with the length direction of the container (50), a square tube (54) is provided in the installation groove (53), the end of the first one-way valve (22) is connected to the square tube (54), and a plurality of through holes (55) are provided at intervals along the length direction of the square tube (54) on the side away from the first one-way valve (22).

4. A wall painting tool according to claim 1, characterized in that: The sponge sheet (70) has several sponge strips (71) spaced apart on the side near the brush roller (60), and the sponge strips (71) are in contact with the surface of the brush roller (60).

5. A wall painting tool according to claim 4, wherein: The receiving box (50) is provided with scraper strips (56) on both sides. The length direction of the scraper strips (56) is consistent with the length direction of the receiving box (50). One side of the scraper strips (56) is arranged near the surface of the brush roller (60).

6. A wall painting tool according to claim 1, characterized in that: The drive assembly (40) includes a mounting plate (41) disposed inside the main tube (10), an electric push rod (42) is disposed on the mounting plate (41), the cylinder of the electric push rod (42) is connected to the mounting plate (41), and the piston rod is connected to the connecting rod (31). A battery (43) and a controller (44) are disposed inside the main tube (10), and several control buttons (45) are disposed outside the main tube (10).

7. A wall painting tool according to claim 1, characterized in that: The upright plate (52) has a rotating hole (57), and the brush roller (60) has trunnions (61) at both ends, and the trunnions (61) are rotatably connected to the corresponding rotating hole (57).

8. A wall painting tool according to claim 7, wherein one of The upright plate (52) is detachably connected to the receiving box (50). A connecting plate (80) is detachably provided on one side of the receiving box (50). A plurality of round holes (81) are provided on the connecting plate (80). A threaded hole is provided on one side of the receiving box (50) corresponding to the round holes (81). A bolt passes through the round holes (81) and is screwed into the threaded hole to connect the connecting plate (80) to the receiving box (50). The upright plate (52) adjacent to the connecting plate (80) is detachably connected to the receiving box (50) and fixedly connected to the connecting plate (80).

9. A wall painting tool according to claim 1, characterized in that: The piston head (30) is provided with several annular grooves (32) spaced apart, and a sealing ring (33) is provided in the annular groove (32), and the sealing ring (33) abuts against the inner wall of the injection cylinder (20).

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