A wall painting device

Abstract

This utility model discloses a wall painting device, including a housing, a telescopic rod assembly, and a roller brush. The telescopic rod assembly includes a circular tube with a sliding rod slidably connected inside. A U-shaped frame is fixed to one end of the sliding rod outside the circular tube. The roller brush is located inside the U-shaped frame and is rotatably connected to the U-shaped frame via a bearing. A spray assembly is fixed inside the U-shaped frame. A pump body is fixed to the upper surface of the housing, and the pump body's inlet is connected to a suction pipe inside the housing. In this utility model, a housing, roller brush, U-shaped frame, spray assembly, pump body, and adjustment assembly are provided. The pump body draws paint from the housing, which then flows through a drain pipe, adjustment assembly, and connecting pipe into the spray assembly. The spray assembly sprays the paint onto the roller brush surface. During this process, the flow rate of the paint can be adjusted using the adjustment assembly to adapt to different painting needs, making it more flexible to use.

Description

Technical Field

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

[0002] Wall painting is a crucial step in building decoration, protecting the walls and enhancing the aesthetics of the space. Before painting, proper surface preparation is essential, including cleaning dust, repairing cracks, sanding smooth, and applying a primer to improve adhesion. Choose a suitable paint based on your needs, such as latex paint, artistic paint, or waterproof coating. Application methods include rolling, spraying, or brushing, ensuring an even coating. Typically, 2-3 coats are required, with 2-4 hours between each coat to guarantee vibrant color and durability.

[0003] A search revealed that patent CN221119072U discloses a building wall painting device. This device automatically and evenly supplies paint to the paint roller via a rolling drive supply assembly. This paint supply method controls the paint supply amount based on the area the paint roller covers, ensuring an appropriate amount of paint, avoiding waste, and guaranteeing paint quality. However, because the device supplies paint by rotating the paint roller, uneven paint supply and paint interruption are easily caused if the number of rotations varies. Furthermore, the supply flow rate cannot be adjusted according to actual painting needs. Additionally, the length of the paint rod is not adjustable, making it inconvenient and inflexible to use. Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a wall painting device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wall painting device, comprising a housing, a telescopic rod assembly, and a roller brush. The telescopic rod assembly includes a circular tube, and a sliding rod is slidably connected inside the circular tube. A U-shaped frame is fixed at one end of the sliding rod outside the circular tube. The roller brush is located inside the U-shaped frame and is rotatably connected to the U-shaped frame via a bearing. A spray assembly is fixed inside the U-shaped frame. A pump body is fixed on the upper surface of the housing. A liquid inlet of the pump body and the inside of the housing are connected to a liquid extraction pipe. A drain pipe is fixed at the liquid outlet of the pump body. A connecting pipe is fixedly connected to the spray assembly. An adjusting assembly is connected between the drain pipe and the connecting pipe.

[0006] Furthermore, the spray assembly includes a horizontal tube fixed inside the U-shaped frame, with multiple nozzles fixed at equal intervals on the side of the horizontal tube near the roller brush, and one end of the connecting pipe fixedly connected to the horizontal tube.

[0007] Furthermore, the adjustment assembly includes a fixed tube fixed to the outer wall of the circular tube. One end of the fixed tube has a conical cavity inside. The side wall of the fixed tube away from the conical cavity is connected to a screw rod through it via a thread. A conical piston is fixed to the end of the screw rod inside the fixed tube. A knob is fixed to the end of the screw rod outside the fixed tube. The end of the drain pipe away from the pump body is fixedly connected to the side wall of the fixed tube. The end of the connecting pipe away from the horizontal tube is fixedly connected to the end of the fixed tube near the conical cavity.

[0008] Furthermore, a handle is fixed to the end of the round tube away from the slide rod, and a fastening bolt is connected through the side wall of the end of the round tube away from the handle via a threaded connection.

[0009] Furthermore, the top wall of the box is provided with an addition port.

[0010] Furthermore, a storage battery is fixed on the upper surface of the housing, and the storage battery is electrically connected to the pump body.

[0011] Furthermore, a base plate is fixed to the lower surface of the housing, and multiple casters are fixed to the lower surface of the base plate.

[0012] The beneficial effects of this utility model are:

[0013] 1. In use, this utility model is a wall painting device consisting of a box, a roller brush, a U-shaped frame, a spray assembly, a pump, and an adjustment assembly. The paint in the box is drawn out by the pump and enters the spray assembly through the drain pipe, the adjustment assembly, and the connecting pipe. The spray assembly sprays the paint onto the surface of the roller brush. During this process, the flow rate of the paint can be adjusted by the adjustment assembly to adapt to different painting needs, making it more flexible to use.

[0014] 2. When in use, this utility model is a wall painting device, which is equipped with a telescopic rod assembly, a roller brush and a U-shaped frame. The length of the telescopic rod assembly is adjustable. When in use, adjusting the length of the telescopic rod assembly can adjust the position of the roller brush, making it more flexible and convenient to use. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 : Overall schematic diagram of this utility model;

[0017] Figure 2 Partial perspective view of this utility model;

[0018] Figure 3 The present utility model Figure 1 Enlarged view of point A in the middle.

[0019] The attached figures are labeled as follows:

[0020] 1. Housing; 2. Telescopic rod assembly; 21. Round tube; 22. Slide rod; 23. Fastening bolt; 24. Handle; 3. Roller brush; 4. U-shaped frame; 5. Spray assembly; 51. Horizontal tube; 52. Spray head; 6. Pump body; 61. Liquid extraction tube; 62. Liquid discharge tube; 7. Connecting tube; 8. Adjustment assembly; 81. Fixing tube; 82. Conical cavity; 83. Screw; 84. Piston; 85. Knob; 9. Adding port; 10. Battery; 11. Base plate; 12. Casters. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-3 As shown, a wall painting device is disclosed, comprising a housing 1, a telescopic rod assembly 2, and a roller brush 3. The telescopic rod assembly 2 includes a circular tube 21, and a sliding rod 22 is slidably connected inside the circular tube 21. A U-shaped frame 4 is fixed to one end of the sliding rod 22 outside the circular tube 21. The roller brush 3 is located inside the U-shaped frame 4 and is rotatably connected to the U-shaped frame 4 via a bearing. A spray assembly 5 is fixed inside the U-shaped frame 4. A pump body 6 is fixed to the upper surface of the housing 1. The inlet of the pump body 6 and the inside of the housing 1 are connected to a suction pipe 61. A drain pipe 62 is fixed to the outlet of the pump body 6. A connecting pipe 7 is fixedly connected to the spray assembly 5. An adjusting assembly 8 is connected between the drain pipe 62 and the connecting pipe 7.

[0023] The spray assembly 5 includes a horizontal tube 51 fixed inside the U-shaped frame 4. Multiple nozzles 52 are fixed at equal intervals on the side of the horizontal tube 51 near the roller brush 3. One end of the connecting pipe 7 is fixedly connected to the horizontal tube 51.

[0024] In this embodiment, the nozzle 52 is an atomizing nozzle. After the paint enters the horizontal tube 51, it is then evenly sprayed onto the surface of the roller brush 3 through the nozzle 52.

[0025] The adjusting assembly 8 includes a fixed tube 81 fixed to the outer wall of the round tube 21. One end of the fixed tube 81 has a conical cavity 82 inside. The side wall of the fixed tube 81 away from the conical cavity 82 is connected to a screw 83 through a thread. A conical piston 84 is fixed to the end of the screw 83 inside the fixed tube 81. A knob 85 is fixed to the end of the screw 83 outside the fixed tube 81. The end of the drain pipe 62 away from the pump body 6 is fixedly connected to the side wall of the fixed tube 81. The end of the connecting pipe 7 away from the horizontal pipe 51 is fixedly connected to the end of the fixed tube 81 near the conical cavity 82.

[0026] After the pump body 6 is started, the paint is drawn out from the inside of the tank 1 through the suction pipe 61. The paint then enters the fixed pipe 81 along the drain pipe 62, and then enters the connecting pipe 7 from the conical cavity 82 side of the fixed pipe 81. Finally, it enters the horizontal pipe 51 along the connecting pipe 7. During this process, the screw 83 can be rotated by rotating the knob 85 on the outside of the fixed pipe 81, thereby driving the piston 84 to move inside the fixed pipe 81, changing the size of the gap between the piston 84 and the inner wall of the conical cavity 82, thereby adjusting the paint flow rate.

[0027] A handle 24 is fixed to the end of the round tube 21 away from the slide bar 22. The side wall of the end of the round tube 21 away from the handle 24 is connected by a fastening bolt 23 through a threaded rotation.

[0028] The slide bar 22 can slide along the inside of the round tube 21, thereby adjusting the length of the telescopic rod assembly 2 and realizing the distance adjustment between the U-shaped frame 4 and the handle 24. After the adjustment is completed, tighten the fastening bolt 23 to press and fix the slide bar 22.

[0029] The top wall of the box 1 is provided with an addition port 9.

[0030] In this embodiment, the surface of the filling port 9 is provided with a removable top cover, which facilitates the addition of paint or coating to the inside of the box 1.

[0031] A storage battery 10 is fixed on the upper surface of the housing 1, and the storage battery 10 is electrically connected to the pump body 6.

[0032] In this embodiment, the storage battery 10 is a rechargeable battery, which can be used to power the pump body 6.

[0033] A base plate 11 is fixed to the lower surface of the box body 1, and multiple casters 12 are fixed to the lower surface of the base plate 11. The casters 12 facilitate the movement of the box body 1, improving the convenience of painting.

[0034] Working principle: In use, first adjust the length of the telescopic rod assembly 2, then hold the handle 24 and start the pump body 6. The paint enters the horizontal pipe 51 along the drain pipe 62, the fixed pipe 81, and the connecting pipe 7, and finally is sprayed out from the nozzle 52 to evenly cover the surface of the roller brush 3. At this time, push the roller brush 3 to roll on the wall. During this period, the knob 85 on the outside of the fixed pipe 81 can be rotated to move the piston 84, thereby adjusting the paint flow rate.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A wall painting device, characterized in that: The device includes a housing (1), a telescopic rod assembly (2), and a roller brush (3). The telescopic rod assembly (2) includes a round tube (21), and a sliding rod (22) is slidably connected inside the round tube (21). A U-shaped frame (4) is fixed at one end of the sliding rod (22) outside the round tube (21). The roller brush (3) is located inside the U-shaped frame (4) and is rotatably connected to the U-shaped frame (4) through a bearing. A spray assembly (5) is fixed inside the U-shaped frame (4). A pump body (6) is fixed on the upper surface of the housing (1). The inlet of the pump body (6) is connected to the inside of the housing (1) via a suction pipe (61). A drain pipe (62) is fixed to the outlet of the pump body (6). A connecting pipe (7) is fixedly connected to the spray assembly (5). An adjusting assembly (8) is connected between the drain pipe (62) and the connecting pipe (7).

2. The wall painting device according to claim 1, characterized in that: The spray assembly (5) includes a horizontal tube (51) fixed inside the U-shaped frame (4). Multiple nozzles (52) are fixed at equal distances on the side of the horizontal tube (51) near the roller brush (3). One end of the connecting pipe (7) is fixedly connected to the horizontal tube (51).

3. A wall painting device according to claim 2, characterized in that: The adjustment assembly (8) includes a fixed tube (81) fixed to the outer wall of the round tube (21). One end of the fixed tube (81) has a conical cavity (82) inside. The side wall of the fixed tube (81) away from the conical cavity (82) is connected to a screw (83) by a thread. The end of the screw (83) inside the fixed tube (81) is fixed with a conical piston (84). The end of the screw (83) outside the fixed tube (81) is fixed with a knob (85). The end of the drain pipe (62) away from the pump body (6) is fixedly connected to the side wall of the fixed tube (81). The end of the connecting pipe (7) away from the horizontal pipe (51) is fixedly connected to the end of the fixed tube (81) near the conical cavity (82).

4. A wall painting device according to claim 1, characterized in that: A handle (24) is fixed to the end of the round tube (21) away from the slide bar (22), and a fastening bolt (23) is connected to the side wall of the end of the round tube (21) away from the handle (24) through and via a threaded rotation.

5. A wall painting device according to claim 1, characterized in that: The top wall of the box (1) is provided with an addition port (9).

6. A wall painting device according to claim 1, characterized in that: A storage battery (10) is fixed on the upper surface of the housing (1), and the storage battery (10) is electrically connected to the pump body (6).

7. A wall painting device according to claim 1, characterized in that: A base plate (11) is fixed to the lower surface of the box (1), and a plurality of casters (12) are fixed to the lower surface of the base plate (11).

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