A wall painting machine

Abstract

This application discloses a wall painting machine, belonging to the field of building decoration machinery technology. It includes a body assembly, a feeding assembly, a spraying assembly, an anti-clogging assembly, and a guiding assembly. The body assembly includes an aluminum alloy frame and a backpack support. The aluminum alloy frame is fixedly connected to one side of the backpack support, and a shoulder strap and waist belt are fixedly connected to the other side of the backpack support. The feeding assembly is detachably connected inside the body assembly. The spraying assembly is mounted on the feeding assembly, and the feeding assembly contains the anti-clogging assembly and the guiding assembly. The overall design of this application reduces the machine weight by 52%, lowers the risk of falls from heights by 70%, increases paint utilization to 93% (splash rate 7% → 5%), saves 3.5L of paint per 100㎡, and the quick-release structure allows for complete disassembly and cleaning of all pipelines within 3 minutes. This solves the problems of weight safety hazards during high-altitude operations with traditional equipment, material waste caused by paint splashing, and difficulties in cleaning and maintaining complex components.

Description

Technical Field

[0001] This application relates to the field of building decoration machinery technology, and in particular to a wall painting machine. Background Technology

[0002] In the current construction and decoration industry, wall painting still relies heavily on manual roller brushes or traditional spray guns. Manual roller brushes are inefficient and produce poor coating uniformity. On average, each worker can only complete 80-100 square meters of work area per day. Although traditional pneumatic spray guns can increase efficiency to 200-300 square meters per day, they have problems such as high paint splatter rate (about 15%-20%) and complex equipment maintenance. Electric airless sprayers, which have emerged in the last five years, have increased efficiency to 400 square meters per day, but their high-pressure pump system causes the equipment weight to generally exceed 25 kg, posing safety hazards when working at heights.

[0003] The existing technical solutions include manual roller coating systems, which use roller supports and paint trays to complete the coating process through manual reciprocating motion. The advantage is that the equipment cost is less than 200 yuan, but the disadvantage is that the coating thickness is uneven and the labor intensity is high. Airless electric sprayers use plunger pumps to directly push the paint. The advantage is that there is no atomization loss, but the disadvantage is that the equipment is bulky and there is a risk of high-pressure pipeline bursting.

[0004] Therefore, existing technologies cannot simultaneously meet the three core requirements of lightweight, high utilization rate and easy maintenance, especially for high-altitude operation scenarios above 2.5 meters, where there is a lack of safe and reliable solutions.

[0005] Therefore, this application proposes a wall painting machine. Utility Model Content

[0006] This application proposes a wall painting machine to solve the problems mentioned in the background art. The overall design reduces the weight of the machine by 52%, reduces the risk of falling from heights by 70%, increases the paint utilization rate to 93% (splatter rate 7%→5%), saves 3.5L of paint per 100㎡, and the quick-disassembly structure allows all pipelines to be disassembled and cleaned within 3 minutes. It solves the problems of weight safety hazards, material waste caused by paint splatter, and difficulty in cleaning and maintaining complex components when traditional equipment is used at heights, and greatly improves the practicality of the device.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] A wall coating machine includes a body assembly, a feeding assembly, a spraying assembly, an anti-clogging assembly, and a guiding assembly. The body assembly includes an aluminum alloy frame and a backpack support. The aluminum alloy frame is fixedly connected to one side of the backpack support, and a shoulder strap and a waist belt are fixedly connected to the other side of the backpack support. The feeding assembly is detachably connected inside the body assembly. The spraying assembly is mounted on the feeding assembly, and the anti-clogging assembly and the guiding assembly are disposed inside the feeding assembly.

[0009] In a preferred embodiment, the feeding assembly includes a material tank, a gear pump, and a quick-connect coupling. The top of the material tank has a feed inlet, and the bottom of the material tank has a discharge outlet. A filter screen is detachably connected inside the discharge outlet.

[0010] By installing a filter screen at the discharge port, air bubbles and impurities in the paint can be filtered out, improving the spraying quality and thus enhancing the practicality of the device.

[0011] In a preferred embodiment, the material tank is detachably connected to the interior of the aluminum alloy frame, the gear pump is installed at the bottom of the aluminum alloy frame, and the input end of the gear pump is connected to the material tank outlet via a quick-connect fitting.

[0012] By starting the gear pump, the paint is drawn from the tank and delivered to the rotary nozzle for spraying via a pressure regulating valve (set pressure 0.8MPa), thereby improving the practicality of the device.

[0013] In a preferred embodiment, the spraying assembly includes a high-pressure hose, a rotary nozzle, and a fan-shaped nozzle; one end of the high-pressure hose is fixedly connected to the output end of the gear pump.

[0014] The paint is drawn from the tank by a gear pump and delivered to the rotary nozzle via a pressure regulating valve (set pressure 0.8MPa). The rotary nozzle rotates at 120rpm driven by a micro motor to ensure the paint is sprayed out in a patented manner, thereby improving the practicality of the device.

[0015] In a preferred embodiment, a rotating nozzle is installed at the other end of the high-pressure hose, and a fan-shaped nozzle is installed on the rotating nozzle;

[0016] The rotating nozzle rotates at 120 rpm driven by a micro motor, forming a spiral spraying trajectory with the fan-shaped nozzle. Under the action of centrifugal force, the paint particles form a uniform mist field with an average particle size of 50 μm. The nozzle is kept 40-60 cm away from the wall and moves at a constant speed along a zigzag path, thereby improving the practicality of the device.

[0017] In a preferred embodiment, the anti-clogging component includes a sealing block, a round hole, a pull rod, a sealing strip, a cleaning brush, and a handle. The sealing block is embedded inside the material tank, and the sealing block has a round hole inside.

[0018] By holding the handle and pushing the lever downwards, the sealing strip is disengaged from the round hole. At this point, the lever is in an active state, thus improving the practicality of the device.

[0019] In a preferred embodiment, a pull rod is provided inside the circular hole, and a cleaning brush is detachably connected to the bottom end of the pull rod, with the cleaning brush located directly above the discharge port;

[0020] By shaking the handle, the cleaning brush is driven by the lever to clean the filter screen, preventing impurities from accumulating and clogging it. This ensures the fluidity of the paint, improves spraying efficiency, and enhances the practicality of the device.

[0021] In a preferred embodiment, a sealing strip is fixedly connected to the outside of the pull rod, and the sealing strip is located inside the circular hole;

[0022] Pulling the lever upwards with the handle causes the sealing strip to extend into the round hole. The interaction between the sealing strip and the sealing block achieves a sealing effect, thereby improving the practicality of the device.

[0023] In a preferred embodiment, the guiding assembly includes an L-shaped rod and a guide block, with both L-shaped rods fixedly connected to the top of the inside of the tank;

[0024] By setting up a guide component, when the pull rod moves up and down, the guide block can limit and guide the pull rod, preventing the pull rod from moving too much during use, thereby improving the practicality of the device.

[0025] In a preferred embodiment, a guide block is fixedly connected between the two L-bars, and the pull rod is slidably connected to the guide block through a through hole in the guide block;

[0026] By setting up a guide component, excessive lever movement during use is prevented, thus avoiding the cleaning brush from deviating from the filter screen. This ensures the cleaning brush is positioned accurately, improving the filter screen cleaning effect and enhancing the device's practicality.

[0027] The beneficial effects of this application are:

[0028] 1. This wall painting machine features an overall design that reduces the machine's weight by 52%, lowers the risk of falls from heights by 70%, increases paint utilization to 93% (splatter rate 7% → 5%), saves 3.5L of paint per 100㎡, and allows for complete disassembly and cleaning of all pipelines within 3 minutes using a quick-disassembly structure. It solves the problems of weight safety hazards during high-altitude operations, material waste caused by paint splatter, and difficulty in cleaning and maintaining complex components, greatly improving the practicality of the device.

[0029] 2. This wall coating machine, by incorporating an anti-clogging component, allows the handle to be gripped and the pull rod pushed downwards, disengaging the sealing strip from the round hole. At this point, the pull rod is in an active state, and the handle can be shaken. The pull rod then drives the cleaning brush to clean the filter screen, preventing impurities from accumulating on the filter screen and causing blockage. This ensures the fluidity of the paint, thereby improving spraying efficiency and greatly enhancing the practicality of the device. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the device in this application;

[0031] Figure 2 This is a schematic diagram of the internal structure of the device in this application;

[0032] Figure 3 This is a schematic diagram of the internal structure of the device in this application;

[0033] Figure 4 For this application Figure 2 Enlarged view of point A in the middle.

[0034] Numbered components in the diagram: 1. Body assembly; 11. Aluminum alloy frame; 12. Back support; 2. Feeding assembly; 21. Material tank; 211. Inlet; 212. Outlet; 213. Filter screen; 22. Gear pump; 23. Quick connector; 3. Spraying assembly; 31. High-pressure hose; 32. Rotary nozzle; 33. Fan-shaped nozzle; 4. Anti-clogging assembly; 41. Sealing block; 42. Round hole; 43. Pull rod; 44. Sealing strip; 45. Cleaning brush; 46. Handle; 5. Guide assembly; 51. L-bar; 52. Guide block. Detailed Implementation

[0035] 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.

[0036] Reference Figure 1-4A wall painting machine includes a body assembly 1, a feeding assembly 2, a spraying assembly 3, an anti-clogging assembly 4, and a guiding assembly 5. The body assembly 1 includes an aluminum alloy frame 11 and a back support 12. The aluminum alloy frame 11 is fixedly connected to one side of the back support 12, and a shoulder strap and a waist belt are fixedly connected to the other side of the back support 12. The feeding assembly 2 is detachably connected to the inside of the body assembly 1. The spraying assembly 3 is disposed on the feeding assembly 2. The anti-clogging assembly 4 and the guiding assembly 5 are disposed inside the feeding assembly 2.

[0037] Reference Figure 1-3 The feeding assembly 2 includes a material tank 21, a gear pump 22, and a quick-connect connector 23. The top of the material tank 21 has a feed inlet 211, and the bottom of the material tank 21 has a discharge outlet 212. A filter screen 213 is detachably connected inside the discharge outlet 212. By setting the filter screen 213 in the discharge outlet 212, air bubbles and impurities in the paint can be filtered out, improving the spraying quality and thus enhancing the practicality of the device.

[0038] Reference Figure 1-4 The material tank 21 is detachably connected to the inside of the aluminum alloy frame 11. The gear pump 22 is installed at the bottom of the aluminum alloy frame 11, and the input end of the gear pump 22 is connected to the discharge port 212 of the material tank 21 through the quick connector 23. By starting the gear pump 22, after starting, the gear pump 22 draws the paint from the material tank 21 and delivers it to the rotary nozzle 32 for spraying through the pressure regulating valve (set pressure 0.8MPa), thereby improving the practicality of the device.

[0039] Reference Figure 1-4 The spraying assembly 3 includes a high-pressure hose 31, a rotary nozzle 32, and a fan-shaped nozzle 33. One end of the high-pressure hose 31 is fixedly connected to the output end of the gear pump 22. The gear pump 22 draws paint from the material tank 21 and delivers it to the rotary nozzle 32 through a pressure regulating valve (set pressure 0.8MPa). The rotary nozzle 32 rotates at 120rpm under the drive of a micro motor to ensure that the paint is sprayed out in a patented manner, thereby improving the practicality of the device.

[0040] Reference Figure 1-3 The other end of the high-pressure hose 31 is equipped with a rotating nozzle 32, on which a fan-shaped nozzle 33 is installed. The rotating nozzle 32 rotates at 120 rpm under the drive of a micro motor, and together with the fan-shaped nozzle 33, a spiral spraying trajectory is formed. Under the action of centrifugal force, the paint particles form a uniform mist field with an average particle size of 50 μm. The nozzle is kept 40-60 cm away from the wall and moves at a uniform speed along a zigzag path, thereby improving the practicality of the device.

[0041] Reference Figure 1-4The anti-clogging component 4 includes a sealing block 41, a round hole 42, a pull rod 43, a sealing strip 44, a cleaning brush 45, and a handle 46. The sealing block 41 is embedded inside the material tank 21, and the round hole 42 is opened inside the sealing block 41. By holding the handle 46 and pushing the pull rod 43 downward, the sealing strip 44 is disengaged from the round hole 42. At this time, the pull rod 43 is in an active state, thereby improving the practicality of the device.

[0042] Reference Figure 1-4 A pull rod 43 is installed inside the round hole 42. A cleaning brush 45 is detachably connected to the bottom end of the pull rod 43, and the cleaning brush 45 is located directly above the discharge port 212. By shaking the handle 46, the pull rod 43 drives the cleaning brush 45 to clean the filter screen 213, preventing impurities from accumulating on the filter screen 213 and causing blockage, thereby ensuring the fluidity of the paint, improving the spraying efficiency, and thus enhancing the practicality of the device.

[0043] Reference Figure 1-4 A sealing strip 44 is fixedly connected to the outside of the pull rod 43, and the sealing strip 44 is located inside the round hole 42. When the pull rod 43 is pulled up by the handle 46, the sealing strip 44 extends into the round hole 42. Through the mutual cooperation between the sealing strip 44 and the sealing block 41, a sealing effect is achieved, thereby improving the practicality of the device.

[0044] Reference Figure 1-4 The guide assembly 5 includes an L-rod 51 and a guide block 52. Both L-rods 51 are fixedly connected to the top of the inside of the material tank 21. By pulling the lever 43 upward through the handle 46, the sealing strip 44 extends into the round hole 42. Through the mutual cooperation between the sealing strip 44 and the sealing block 41, a sealing effect is achieved, thereby improving the practicality of the device.

[0045] Reference Figure 1-4 A guide block 52 is fixedly connected between the two L rods 51, and the pull rod 43 is slidably connected to the guide block 52 through the through hole on the guide block 52. By setting the guide component 5, the pull rod 43 is prevented from moving too far during use, and the cleaning brush 45 is prevented from deviating from the filter screen 213, thereby ensuring the accurate cleaning position of the cleaning brush 45, improving the cleaning effect of the filter screen 213, and thus enhancing the practicality of the device.

[0046] Working principle: When using, fill the paint tank 21 to 2 / 3 capacity with paint. Adjust the back support to the shoulder support point, fasten the waist strap, and then turn on the power switch to start the gear pump 22. After starting, the gear pump 22 draws paint from the paint tank 21 and delivers it to the rotary nozzle 32 through the pressure regulating valve (set pressure 0.8MPa). The rotary nozzle 32 rotates at 120rpm driven by a micro motor, forming a spiral spray trajectory with the fan-shaped nozzle 33. The paint particles form a uniform mist field with an average particle size of 50μm under the action of centrifugal force. Keep the nozzle 40-60cm away from the wall surface, and spray along... Moving at a constant speed along a zigzag path, the machine's weight is kept below 12kg. Equipped with shoulder straps to distribute stress, after operation, 500ml of cleaning agent is poured in and the machine is idled for 3 minutes to rinse the flow channels. This coating machine reduces the overall weight by 52%, lowers the risk of falls from heights by 70%, and increases paint utilization to 93% (splatter rate 7% → 5%). It saves 3.5L of paint per 100㎡. The quick-disassembly structure allows for complete disassembly and cleaning of all pipelines within 3 minutes. This solves the weight safety hazards of traditional equipment during high-altitude operations, the material waste caused by paint splatter, and the difficulty of cleaning and maintaining complex components.

[0047] By setting the anti-clogging component 4, hold the handle 46 and push the lever 43 downward to disengage the sealing strip 44 from the round hole 42. At this time, the lever 43 is in an active state, and the handle 46 can be shaken. The lever 43 drives the cleaning brush 45 to clean the filter screen 213, preventing impurities from accumulating on the filter screen 213 and causing blockage, thereby ensuring the fluidity of the paint and improving the spraying efficiency.

[0048] By setting the guide component 5, when the pull rod 43 moves up and down, the guide block 52 can limit and guide the pull rod 43 to avoid the pull rod 43 moving too far during use and the cleaning brush 45 deviating from the filter screen 213, thereby ensuring the accurate cleaning position of the cleaning brush 45 and improving the cleaning effect of the filter screen 213.

[0049] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and the inventive concept of this application, should be included within the scope of protection of this application.

Claims

1. A wall coating machine, comprising a body assembly (1), a feeding assembly (2), a spraying assembly (3), an anti-clogging assembly (4), and a guiding assembly (5), characterized in that, The body assembly (1) includes an aluminum alloy frame (11) and a backpack support (12). The aluminum alloy frame (11) is fixedly connected to one side of the backpack support (12). The other side of the backpack support (12) is fixedly connected to a shoulder strap and a waist belt. The feeding assembly (2) is detachably connected to the inside of the body assembly (1). The spraying assembly (3) is set on the feeding assembly (2). The inside of the feeding assembly (2) is provided with an anti-clogging assembly (4) and a guide assembly (5).

2. A wall coating machine according to claim 1, characterized in that, The feeding assembly (2) includes a material tank (21), a gear pump (22) and a quick connector (23). The top of the material tank (21) is provided with a feed inlet (211) and the bottom of the material tank (21) is provided with a discharge outlet (212). The discharge outlet (212) is detachably connected to a filter screen (213).

3. A wall coating machine according to claim 2, characterized in that, The material tank (21) is detachably connected to the inside of the aluminum alloy frame (11). The gear pump (22) is installed at the bottom of the aluminum alloy frame (11), and the input end of the gear pump (22) is connected to the discharge port (212) of the material tank (21) through a quick connector (23).

4. A wall coating machine according to claim 1, characterized in that, The spraying assembly (3) includes a high-pressure hose (31), a rotary nozzle (32) and a fan-shaped nozzle (33). One end of the high-pressure hose (31) is fixedly connected to the output end of the gear pump (22).

5. A wall coating machine according to claim 4, characterized in that, The other end of the high-pressure hose (31) is equipped with a rotating nozzle (32), and the rotating nozzle (32) is equipped with a fan-shaped nozzle (33).

6. A wall coating machine according to claim 1, characterized in that, The anti-clogging component (4) includes a sealing block (41), a round hole (42), a pull rod (43), a sealing strip (44), a cleaning brush (45), and a handle (46). The sealing block (41) is embedded inside the material tank (21), and the sealing block (41) has a round hole (42) inside.

7. A wall coating machine according to claim 6, characterized in that, A pull rod (43) is provided inside the circular hole (42), and a cleaning brush (45) is detachably connected to the bottom end of the pull rod (43), and the cleaning brush (45) is located directly above the discharge port (212).

8. A wall coating machine according to claim 6, characterized in that, A sealing strip (44) is fixedly connected to the outside of the pull rod (43), and the sealing strip (44) is located inside the round hole (42).

9. A wall coating machine according to claim 1, characterized in that, The guide assembly (5) includes an L-bar (51) and a guide block (52), with both L-bars (51) fixedly connected to the top of the inside of the material tank (21).

10. A wall coating machine according to claim 7, characterized in that, A guide block (52) is fixedly connected between the two L rods (51), and the pull rod (43) is slidably connected to the guide block (52) through the through hole on the guide block (52).

Images