Anti-settling building exterior wall coating spraying device

By combining a three-stage mixing assembly with magnetic adsorption and a water pump-assisted filtration design, the problems of insufficient mixing and pipeline blockage in the paint spraying device are solved, achieving all-round mixing and efficient spraying of the paint.

CN224363611UActive Publication Date: 2026-06-16HENAN HUADING CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-29
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing building exterior wall coating spraying equipment is prone to sedimentation when the mixing is insufficient, especially in high-viscosity coatings, which can cause clumping and blockage of pipelines, resulting in poor coating delivery.

Method used

The paint tank features a three-stage mixing system. The upper, middle, and lower mixing components within the tank perform three-dimensional convection mixing, which, combined with magnetic adsorption and water pump-assisted filtration, prevents sedimentation and clogging.

Benefits of technology

It achieves comprehensive mixing of coatings, prevents sedimentation and pipeline blockage, and improves the production stability and spraying efficiency of coatings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of anti-settling building exterior wall coating spraying devices, including paint bucket, upper cover, motor, feed inlet, filtering mechanism, filter tank, filter screen, fixed block, positioning hole and magnetic force adsorption mechanism;The top of the paint bucket is provided with upper cover, the upper surface of upper cover is provided with motor, and the upper surface of upper cover is provided with feed inlet, the output end of motor is provided with main shaft, main shaft is sleeved with inverted U type blade, positive U type blade and gear box;The utility model is with structured design, and the anti-settling building exterior wall coating spraying device, the upper, middle and lower three-section stirring assembly of its paint bucket is set, its stirring direction follows the principle of forming three-dimensional convection and anti-settling dead angle, through the rotating direction cooperation of different sections, the three-dimensional mixing of coating is realized, upper section component is quickly scattered surface agglomeration, middle section component strengthens its longitudinal convection, lower section component is then close to tank bottom and prevent bottom coating stagnation and deposit.
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Description

Technical Field

[0001] This utility model relates to the field of spraying device technology, and in particular to a spraying device for preventing sedimentation of building exterior wall coatings. Background Technology

[0002] Building exterior wall paint spraying equipment is a type of mechanical equipment specifically designed to spray paint evenly and efficiently onto building exterior walls. It is widely used in new construction, renovation projects, and decoration projects. Its core function is to achieve paint atomization and precise coverage through mechanical or automated means, replacing traditional manual brushing and improving construction efficiency and quality. However, existing building exterior wall paint spraying equipment has significant drawbacks in practical applications. First, insufficient mixing leads to sedimentation residue. Traditional mixing mechanisms mostly adopt a single-shaft design, which can only locally agitate the paint. Especially when the paint viscosity is high, sedimentation dead zones easily form at the bottom and corners. Although some devices use motor-driven mixing plates, the mixing range is limited and cannot completely break up clumps in high-viscosity paint. Second, there is a high risk of pipeline blockage. Particulate impurities or sediment in the paint can easily accumulate in narrow places in the conveying pipeline, causing poor discharge. Traditional devices only rely on mixing in the storage tank, and there are no mixing or dynamic dispersion components in the pipeline. After the paint leaves the tank, if the conveying distance is long, the particles may settle again in the pipeline. Utility Model Content

[0003] The purpose of this invention is to provide a building exterior wall coating spraying device that prevents sedimentation, so as to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a building exterior wall coating spraying device for preventing sedimentation, including a coating bucket, the top of the coating bucket is provided with a top cover, a motor is provided on the upper surface of the top cover, and a feed port is opened on the upper surface of the top cover. A main shaft is provided at the output end of the motor, and an inverted U-shaped blade, a regular U-shaped blade and a gearbox are sleeved on the main shaft. A driven bevel gear, an idler gear and a driving bevel gear are provided in the gearbox, and one end of the driven bevel gear is sleeved on the main shaft. The outer side of the idler gear is meshed with the driven bevel gear and the driving bevel gear. The driving bevel gear is sleeved on the main shaft, and a straight blade is sleeved on the driven bevel gear.

[0005] As a further technical solution of this utility model, a discharge port is provided on one side of the outer wall of the paint bucket, and a positioning pin is provided on one side of the outer surface of the discharge port.

[0006] As a further technical solution of this utility model, a filter mechanism is fixedly connected to one end of the discharge port, and a magnetic adsorption mechanism is provided inside the filter mechanism.

[0007] As a further technical solution of this utility model, the filtration mechanism includes a filter tank, a filter screen, a fixing block, a positioning hole, a spiral turbine, and a drive shaft. The filter screen is fixedly connected inside the filter tank, and a drive shaft is provided on one outer wall of the filter screen. A fixing block is fixedly connected to one outer surface of the filter tank, and a positioning hole is provided on the fixing block. A positioning pin is fixedly connected in the positioning hole. A spiral turbine is provided inside the filter tank and is sleeved on the drive shaft.

[0008] As a further technical solution of this utility model, the magnetic adsorption mechanism includes a shell, a cavity, a support frame, a handle, a magnetic rod, a skeleton, and a handle. The shell has a cavity, and a support frame is provided at one end of the shell. A handle is provided on the upper surface of the support frame. A magnetic rod is sleeved in the cavity. A skeleton is provided at one end of the magnetic rod, and a handle is provided on the upper surface of the skeleton.

[0009] As a further technical solution of this utility model, one end of the filtration mechanism is sleeved with a first water pipe, and one end of the first water pipe is sleeved with a water pump.

[0010] As a further technical solution of this utility model, the output end of the water pump is sleeved with a second water pipe, and one end of the second water pipe is fixedly connected to a nozzle.

[0011] Compared with existing technologies, the beneficial effects achieved by this utility model are as follows: This utility model adopts a structured design. This anti-settling building exterior wall paint spraying device has three-section stirring components (upper, middle, and lower) in its paint tank. The stirring direction follows the principles of three-dimensional convection formation and anti-settling dead angles. Through the coordinated rotation directions of different sections, three-dimensional mixing of the paint is achieved. The upper component quickly breaks up surface clumps, the middle component enhances longitudinal convection, and the lower component adheres closely to the bottom of the tank to prevent paint from stagnating and settling at the bottom. The clockwise rotation of the upper section generates an outward circulation in the upper layer, the counterclockwise rotation of the middle section promotes longitudinal convection in the middle layer, and the clockwise rotation of the lower section forms a centripetal convergence at the bottom layer. The three components combine to form a three-dimensional vortex inside the tank, which expands upward, rises vertically in the middle, and converges downward, covering the entire height of the tank and eliminating top clumps and middle layering. The process involves bottom sedimentation, while at the outlet, efficient anti-clogging is achieved through mechanical disturbance, impurity adsorption, and fluid dynamic optimization. The rotating propeller blades throw particulate impurities in the coating around due to centrifugal force. The relative motion between the rotating propeller blades and the coating flow prevents the accumulation of fine particles and reduces the probability of vertical accumulation in the mesh. In addition, magnetic adsorption is used to pre-intercept metal impurities, reducing the load on the filter screen. The tail-end water pump increases the flow rate of the coating through the filter screen through suction or pumping, reducing the residence time of particles on the filter screen surface and inhibiting sedimentation and accumulation caused by gravity or viscosity. The combination of three stages of anti-sedimentation and efficient anti-clogging transforms passive filtration clogging into active anti-sedimentation, dispersion, and filtration process control, significantly improving the stability and efficiency of coating production. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a front view schematic diagram of the stirring structure of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the three-section blade of this utility model;

[0016] Figure 4 for Figure 3 Enlarged structural diagram of region A in the middle;

[0017] Figure 5 This is a three-dimensional structural diagram of the paint bucket of this utility model;

[0018] Figure 6 This is a three-dimensional structural diagram of the filtration mechanism of this utility model;

[0019] Figure 7 This is a three-dimensional structural diagram of a portion of the present invention;

[0020] Figure 8 This is a three-dimensional structural diagram of the magnetic adsorption mechanism of this utility model.

[0021] In the diagram: 1. Paint bucket; 2. Top cover; 3. Motor; 4. Feed inlet; 5. Filtration mechanism; 51. Filter tank; 52. Filter screen; 53. Fixing block; 54. Positioning hole; 55. Spiral turbine; 56. Drive shaft; 6. Magnetic adsorption mechanism; 61. Outer shell; 62. Cavity; 63. Support frame; 64. Handle; 65. Magnetic rod; 66. Frame; 67. Handle; 7. Main shaft; 8. Inverted U-shaped blade; 9. Straight blade; 10. Positive U-shaped blade; 11. Gearbox; 12. Driven bevel gear; 13. Idler wheel; 14. Driven bevel gear; 15. First water pipe; 16. Water pump; 17. Second water pipe; 18. Nozzle; 19. Discharge port; 20. Positioning pin. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Please see the appendix Figure 1 - Appendix Figure 8This utility model provides an embodiment of an anti-settling building exterior wall paint spraying device, comprising a paint bucket 1, a top cover 2 on the top of the paint bucket 1, a motor 3 on the upper surface of the top cover 2, and a feed inlet 4 on the upper surface of the top cover 2. A main shaft 7 is located at the output end of the motor 3. An inverted U-shaped blade 8, a regular U-shaped blade 10, and a gearbox 11 are sleeved on the main shaft 7. The gearbox 11 contains a driven bevel gear 12, an idler gear 13, and a driving bevel gear 14. One end of the driven bevel gear 12 is sleeved on the main shaft 7. The outer side of the idler gear 13 is meshed with the driven bevel gear 12 and the driving bevel gear 14. The driving bevel gear 14 is sleeved on the main shaft 7, and the driven bevel gear 12 is sleeved on... The filter mechanism 5 is equipped with a straight blade 9. A discharge port 19 is located on one outer wall of the paint tank 1, and a positioning pin 20 is located on one outer surface of the discharge port 19 to ensure the precise positional relationship between the filter mechanism 5 and the device. One end of the discharge port 19 is fixedly connected to the filter mechanism 5, and a magnetic adsorption mechanism 6 is installed inside the filter mechanism 5. The magnetic adsorption mechanism 6 can capture ferromagnetic impurities in the paint, preventing impurities from accumulating near the filter screen and forming a blockage. The filter mechanism 5 includes a filter tank 51, a filter screen 52, a fixing block 53, a positioning hole 54, a spiral turbine 55, and a drive shaft 56. The filter screen 52 is fixedly connected inside the filter tank 51, and a drive shaft 20 is located on one outer wall of the filter screen 52. A fixing block 53 is fixedly connected to one side of the outer surface of the filter tank 51, and a positioning hole 54 is opened on the fixing block 53. A positioning pin 20 is fixedly connected in the positioning hole 54. A spiral turbine 55 is installed inside the filter tank 51 and is sleeved on the drive shaft 56. The spiral turbine 55 agitates the coating to form turbulence, which breaks the impurity accumulation layer on the surface of the filter screen and avoids the filter resistance from increasing. The magnetic adsorption mechanism 6 includes a shell 61, a cavity 62, a support frame 63, a handle 64, a magnetic rod 65, a frame 66, and a handle 67. A cavity 62 is opened inside the shell 61, and a support frame 63 is provided at one end of the shell 61. A handle is provided on the upper surface of the support frame 63. 64. A magnetic rod 65 is fitted inside the cavity 62. One end of the magnetic rod 65 is provided with a frame 66, and the upper surface of the frame 66 is provided with a handle 67, which facilitates the disassembly and cleaning of the magnetic adsorption mechanism 6 and prevents the adsorbed impurities from falling off and flowing back into the paint after saturation. One end of the filter mechanism 5 is fitted with a first water pipe 15, and one end of the first water pipe 15 is fitted with a water pump 16. The water pump 16 provides power assistance to the paint, optimizes the fluid state of the paint, and prevents the paint from stagnating midway. The output end of the water pump 16 is fitted with a second water pipe 17, and one end of the second water pipe 17 is fixedly connected to a nozzle 18. The paint is converted into a uniform and controllable mist or flow form through the nozzle 18, thereby achieving precise spraying.

[0024] Working principle: Using this invention, firstly, the idler gear 13 is meshed with the driven bevel gear 12 and the driving bevel gear 14. Then, the driving bevel gear 14 is sleeved on the main shaft 7, and the resulting reverse gear structure is fixedly connected inside the gearbox 11. The straight blade 9 is sleeved on the driven bevel gear 12. Next, the main shaft 7 is sleeved inside the driven bevel gear 12. Then, an inverted U-shaped blade 8 and a regular U-shaped blade 10 are sleeved on the main shaft 7. One end of the main shaft 7 is fixedly connected to the output end of the motor 3 located on the upper surface of the upper cover 2. The upper cover 2 is then closed with the paint bucket 1, and the paint is fed into the upper cover. At feed inlet 4, paint is input, and motor 3 operates. At this time, the inverted U-shaped blade 8 rotates clockwise, sweeping horizontally across the paint surface. The clockwise rotation generates outward centrifugal force, pushing surface clumps towards the tank wall. Simultaneously, the tilt angle of the blade edges causes the surface paint to flow downwards, forming an upward vortex. The straight blade 9, due to its reverse gear structure, rotates counterclockwise, pushing the central paint upwards and downwards, breaking up clumps and promoting mixing between upper and lower layers. The upright U-shaped blade 10 rotates clockwise, gathering heavy particles deposited at the bottom of the tank towards the center. Simultaneously, the tilt of the scraper... The surface lifts the particles upwards and sends them into the middle convection zone, preventing paint from accumulating at the bottom. Simultaneously, the water pump 16 connected to the tail end of the first water pipe 15 starts. Because the discharge port 19 is connected via the positioning pin 20 and the positioning hole 54 on the surface of the fixed block 53 in the filter mechanism 5, the paint directly enters the filter tank 51 through the discharge port 19. The flow of the paint itself drives the spiral turbine 55, connected to the front end of the filter screen 52 via the drive shaft 56, to rotate. This causes the particulate impurities in the paint to be thrown to the surroundings by centrifugal force, while the internal magnetic attraction... The attached mechanism 6 has a magnetic rod 65 on the frame 66 that is fitted into the cavity 62 inside the outer shell 61. The magnetic rod 65 adsorbs heavy particles onto the outer surface of the outer shell 61. When the magnetic adsorption mechanism 6 needs to be cleaned, it is removed by using the handle 64 fixedly connected to the support frame 63. Then, the magnetic rod 65 is removed by using the ventilation handle 67, and the outer shell 61 can be cleaned. After the paint is filtered, it flows through the water pump 16. The water pump 16 pressurizes the paint so that it finally passes through the second water pipe 17 and is sprayed out from the nozzle 18 in a uniform and controllable state.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A building exterior wall coating spraying device for preventing sedimentation, comprising a paint bucket (1), characterized in that: The top of the paint bucket (1) is provided with a cover (2), and a motor (3) is provided on the upper surface of the cover (2). The upper surface of the cover (2) is provided with a feed inlet (4). The output end of the motor (3) is provided with a main shaft (7). An inverted U-shaped blade (8), a positive U-shaped blade (10) and a gearbox (11) are sleeved on the main shaft (7). The gearbox (11) is provided with a driven bevel gear (12), an idler gear (13) and a driving bevel gear (14). One end of the driven bevel gear (12) is sleeved on the main shaft (7). The outer side of the idler gear (13) is meshed with the driven bevel gear (12) and the driving bevel gear (14). The driving bevel gear (14) is sleeved on the main shaft (7). A straight blade (9) is sleeved on the driven bevel gear (12).

2. The anti-settling building exterior wall coating spraying device according to claim 1, characterized in that: The paint bucket (1) has a discharge port (19) on one side of its outer wall, and a positioning pin (20) is provided on one side of the outer surface of the discharge port (19).

3. The anti-settling building exterior wall coating spraying device according to claim 2, characterized in that: A filter mechanism (5) is fixedly connected to one end of the discharge port (19), and a magnetic adsorption mechanism (6) is provided inside the filter mechanism (5).

4. The anti-settling building exterior wall coating spraying device according to claim 3, characterized in that: The filtration mechanism (5) includes a filter tank (51), a filter screen (52), a fixing block (53), a positioning hole (54), a spiral turbine (55), and a drive shaft (56). The filter screen (52) is fixedly connected inside the filter tank (51). The drive shaft (56) is provided on one outer wall of the filter screen (52). The fixing block (53) is fixedly connected on one outer surface of the filter tank (51). The fixing block (53) has a positioning hole (54). A positioning pin (20) is fixedly connected inside the positioning hole (54). The spiral turbine (55) is provided inside the filter tank (51) and is sleeved on the drive shaft (56).

5. The anti-settling building exterior wall coating spraying device according to claim 3, characterized in that: The magnetic adsorption mechanism (6) includes a shell (61), a cavity (62), a support frame (63), a handle (64), a magnetic rod (65), a frame (66), and a handle (67). The shell (61) has a cavity (62) inside, and a support frame (63) is provided at one end of the shell (61). The handle (64) is provided on the upper surface of the support frame (63). The magnetic rod (65) is sleeved in the cavity (62). The frame (66) is provided at one end of the magnetic rod (65), and the handle (67) is provided on the upper surface of the frame (66).

6. The anti-settling building exterior wall coating spraying device according to claim 4, characterized in that: One end of the filter mechanism (5) is fitted with a first water pipe (15), and one end of the first water pipe (15) is fitted with a water pump (16).

7. The anti-settling building exterior wall coating spraying device according to claim 6, characterized in that: The output end of the water pump (16) is fitted with a second water pipe (17), and one end of the second water pipe (17) is fixedly connected to a nozzle (18).