A polyurethane waterproof coating device

By introducing a drying fan and an adjustable baffle structure into the coating device, the problem of slow natural drying speed of polyurethane waterproof coatings is solved, enabling rapid drying and flexible adjustment of coating width, thus improving construction efficiency and quality.

CN224371827UActive Publication Date: 2026-06-19XIANGYANG QIANJIAMEI WATERPROOF MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIANGYANG QIANJIAMEI WATERPROOF MATERIAL CO LTD
Filing Date
2025-05-20
Publication Date
2026-06-19

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Abstract

The utility model discloses a kind of polyurethane waterproof coating's coating devices, it is related to waterproof coating coating technical field, including support base plate and coating box, the left side of support base plate is equipped with support frame, the right side of support frame is equipped with reinforcing block;The right side above of support frame is equipped with connecting plate, the lower side of servo motor is equipped with stirring shaft by output shaft, the lower side of connecting plate is equipped with transmission shaft by bearing seat, limit sleeve is installed on reinforcing block, the lower end of transmission shaft is equipped with air fan;Coating box is installed in the penetration on the support base plate.This polyurethane waterproof coating's coating device is provided with air fan, transmission shaft is rotated under stress, air fan in the lower end of transmission shaft is rotated, wind power is generated, after the polyurethane waterproof coating of coating is rapidly air dried, greatly shorten the drying time of coating, effectively reduce construction cycle, improve overall construction efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of waterproof coating technology, specifically to a polyurethane waterproof coating coating device. Background Technology

[0002] Polyurethane waterproof coatings hold a crucial position in the field of building waterproofing engineering. They are made primarily from polyether polyols and isocyanates through a chemical reaction. After curing, this coating forms a highly elastic waterproof membrane with excellent waterproofing performance, effectively preventing water penetration. It possesses good flexibility, adapting well to the expansion and contraction or cracking of the substrate; even with minor cracks in the substrate, the waterproof membrane can deform without breaking. It also exhibits excellent weather resistance, maintaining stable performance under various climatic conditions. Whether exposed to high temperatures or freezing temperatures, it is not prone to aging or cracking, resulting in a long service life. For these reasons, polyurethane waterproof coatings are widely used for waterproofing roofs, basements, bathrooms, and other areas, playing a key role in residential and commercial buildings, as well as infrastructure construction such as bridges and tunnels.

[0003] When performing waterproofing, specialized coating equipment is required to improve coating efficiency.

[0004] For example, Chinese utility model patent application number 202222778905.4 discloses a coating device for modified polyurethane waterproof coating. This improved coating device for modified polyurethane waterproof coating has the advantages of stirring and cleaning the ground, thus effectively solving the problems and shortcomings of existing devices. However, the device still has certain defects.

[0005] In waterproof coating construction, due to the lack of effective measures to accelerate air drying, the natural air drying speed of polyurethane waterproof coating is slow. This not only prolongs the construction cycle and increases labor and time costs, but also makes the coating prone to dust and impurities from being undried for a long time, affecting the final waterproof quality.

[0006] Therefore, we propose a polyurethane waterproof coating application device to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide a coating device for polyurethane waterproof coatings, in order to solve the problem mentioned in the background art that, in the current waterproof coating construction on the market, due to the lack of effective measures to accelerate air drying, the natural air drying speed of polyurethane waterproof coatings is slow. This not only prolongs the construction cycle and increases labor and time costs, but also makes the coating prone to being contaminated with dust and impurities due to prolonged undried time, thus affecting the final waterproof quality.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a coating device for polyurethane waterproof coating, comprising a supporting base plate and a coating box, wherein a support frame is installed on the left side of the supporting base plate, and a storage bucket is installed on the top of the supporting base plate via a fixed seat, and a reinforcing block is installed on the right side of the support frame;

[0009] A connecting plate is installed on the upper right side of the support frame, and a servo motor is installed on the connecting plate. A stirring shaft is installed below the servo motor via an output shaft. A transmission shaft is installed below the connecting plate via a bearing seat, and the transmission shaft and the stirring shaft are connected by a connecting belt. A limit sleeve is installed on the reinforcing block, and a drying fan is installed at the lower end of the transmission shaft.

[0010] A coating box is installed through the support base plate, and a spray head is installed below the coating box. The coating box is connected to the storage tank through a discharge pipe. Magnetic blocks are installed on both the front and rear sides of the lower surface of the storage tank. A vertical plate is installed on the upper surface of the support base plate, and limit bolts are installed on both the upper and lower sides of the vertical plate. A first baffle and a second baffle are installed on the front and rear sides of the interior of the coating box, respectively. Metal blocks are installed on the upper ends of the first baffle and the second baffle, and the metal blocks are connected by a connecting ring. A positioning groove is opened on the rear side of the rear metal block.

[0011] Preferably, four rollers are installed below the supporting base plate, and the rollers are arranged in a rectangular structure.

[0012] With the above structural design, the rolling wheels under the support base plate make it easy to move the device to the position where coating is required.

[0013] Preferably, a feeding hopper is installed on the right side of the storage hopper, and the bottom surface of the feeding hopper is designed with an inclined structure, and the reinforcing block is fixedly connected to the storage hopper.

[0014] With the above structural design, the material is fed into the storage tank through the feeding hopper, while preventing the paint from clogging at the feeding hopper.

[0015] Preferably, the stirring shaft is equipped with stirring blades, and both the stirring shaft and the drive shaft are equipped with pulleys.

[0016] With the above structural design, when the servo motor is started, the output shaft of the servo motor drives the stirring shaft to rotate. The stirring blades on the stirring shaft fully stir the coating in the storage tank to prevent the coating from settling.

[0017] Preferably, the drive shaft is rotatably connected to the limiting sleeve, and the drying fan is located on the left side of the coating box.

[0018] With the above structural design, since the drive shaft and the stirring shaft are connected by a connecting belt, the rotation of the stirring shaft drives the drive shaft to rotate within the limiting sleeve. The limiting sleeve plays a limiting and guiding role for the drive shaft, which in turn causes the drying fan installed at the lower end of the drive shaft to rotate, generating wind power to quickly dry the coated polyurethane waterproof coating, greatly shortening the drying time of the coating, effectively reducing the construction cycle, and improving the overall construction efficiency.

[0019] Preferably, multiple spray heads are provided, and the spray heads are connected to the interior of the coating box, and a control valve is installed on the discharge pipe.

[0020] With the above structural design, when the control valve is opened, the polyurethane waterproof coating in the storage tank is transported to the coating box through the discharge pipe, and then the coating is sprayed through the spray head.

[0021] Preferably, the vertical plate is located on the rear side of the storage tank, and sealing strips are installed on the lower surfaces of the first baffle and the second baffle. The first baffle and the second baffle are slidably connected to the coating box.

[0022] With the above structural design, when it is necessary to reduce the coating width, rotate the upper limiting bolt to move it away from the positioning groove on the metal block, and then move the metal block downward. The metal block drives the first baffle and the second baffle downward. Then rotate the limiting bolt to engage with the positioning groove on the metal block, thereby reducing the number of spray heads that can discharge material and thus reducing the coating width. After adjustment, the sealing strips on the lower surfaces of the first and second baffles can ensure the seal between them and the coating box, thereby changing the flow path of the paint in the coating box and adjusting the coating width to meet the needs of different construction scenarios. Similarly, when restoring the coating width, move the metal block upward, which drives the first and second baffles upward. The metal block is attracted to the magnetic block above for auxiliary positioning, and then rotate the limiting bolt to engage with the positioning groove on the metal block.

[0023] Compared with the prior art, the beneficial effects of this utility model are: the coating device for the polyurethane waterproof coating:

[0024] 1. Equipped with a drying fan, when the drive shaft rotates under force, the drying fan at the lower end of the drive shaft rotates accordingly, generating wind force to quickly dry the applied polyurethane waterproof coating, greatly shortening the drying time of the coating, effectively reducing the construction cycle, and improving the overall construction efficiency.

[0025] 2. Equipped with a first baffle and a second baffle, when it is necessary to reduce the coating width, rotate the upper limiting bolt to move it away from the positioning groove on the metal block, and then move the metal block downward. The metal block drives the first baffle and the second baffle downward. Then rotate the limiting bolt to engage with the positioning groove on the metal block, thereby reducing the number of spray heads that can discharge material and thus reducing the coating width. After adjustment, the sealing strip on the lower surface of the first baffle and the second baffle can ensure the sealing between them and the coating box, thereby changing the flow path of the paint in the coating box and realizing the adjustment of the coating width to meet the needs of different construction scenarios. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the main cross-section of the present invention;

[0027] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the coating box structure from the right side;

[0029] Figure 4 This is a schematic diagram of the internal structure of the coating box when the coating width is reduced according to this utility model;

[0030] Figure 5 This is a schematic diagram showing the position and structure of the first and second baffles of this utility model;

[0031] Figure 6 This is a schematic diagram of the position structure of the transmission shaft and the limiting sleeve of this utility model.

[0032] In the diagram: 1. Support base plate; 2. Rolling wheel; 3. Support frame; 4. Fixed seat; 5. Storage bin; 6. Feed hopper; 7. Reinforcing block; 8. Connecting plate; 9. Servo motor; 10. Stirring shaft; 11. Drive shaft; 12. Connecting belt; 13. Limiting sleeve; 14. Drying fan; 15. Coating box; 16. Spray head; 17. Discharge pipe; 18. Control valve; 19. Magnetic block; 20. Vertical plate; 21. Limiting bolt; 22. First baffle; 23. Second baffle; 24. Metal block; 25. Connecting ring; 26. Positioning groove. Detailed Implementation

[0033] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-6This utility model provides a technical solution: a polyurethane waterproof coating application device, including a supporting base plate 1, rolling wheels 2, a support frame 3, a fixed seat 4, a storage tank 5, a feeding hopper 6, a reinforcing block 7, a connecting plate 8, a servo motor 9, a stirring shaft 10, a transmission shaft 11, a connecting belt 12, a limiting sleeve 13, a drying fan 14, a coating box 15, a spray head 16, a discharge pipe 17, a control valve 18, a magnetic block 19, a vertical plate 20, a limiting bolt 21, a first baffle 22, a second baffle 23, a metal block 24, a connecting ring 25, and a positioning groove 26. The left side of the supporting base plate 1 is equipped with... The device is equipped with a support frame 3, and four rollers 2 are installed below the support base plate 1. The rollers 2 are arranged in a rectangular structure. The rollers 2 below the support base plate 1 facilitate the movement of the device to the position to be coated. A storage tank 5 is installed above the support base plate 1 via a fixed seat 4. A feeding hopper 6 is installed on the right side of the storage tank 5. The bottom surface of the feeding hopper 6 is designed with an inclined structure. A reinforcing block 7 is fixedly connected to the storage tank 5. The feeding hopper 6 is used to add material to the storage tank 5, while preventing the coating from clogging at the feeding hopper 6. A reinforcing block 7 is installed on the right side of the support frame 3.

[0035] A connecting plate 8 is installed on the upper right side of the support frame 3, and a servo motor 9 is installed on the connecting plate 8. A stirring shaft 10 is installed below the servo motor 9 via an output shaft. Stirring blades are installed on the stirring shaft 10. Both the stirring shaft 10 and the drive shaft 11 are equipped with pulleys. When the servo motor 9 is started, its output shaft drives the stirring shaft 10 to rotate. The stirring blades on the stirring shaft 10 thoroughly stir the coating in the storage tank 5 to prevent sedimentation. A drive shaft 11 is installed below the connecting plate 8 via a bearing seat. The drive shaft 11 is rotatably connected to the limiting sleeve 13. The drying fan 14 is located on the left side of the coating box 15. Shaft 11 is connected to stirring shaft 10 via connecting belt 12. The rotation of stirring shaft 10 drives transmission shaft 11 to rotate within limiting sleeve 13. Limiting sleeve 13 serves to limit and guide transmission shaft 11, thereby causing the drying fan 14 installed at the lower end of transmission shaft 11 to rotate accordingly, generating wind power to quickly dry the coated polyurethane waterproof coating, greatly shortening the drying time of the coating, effectively reducing the construction cycle, and improving the overall construction efficiency. Furthermore, transmission shaft 11 and stirring shaft 10 are connected via connecting belt 12, and limiting sleeve 13 is installed on reinforcing block 7. The drying fan 14 is installed at the lower end of transmission shaft 11.

[0036] A coating box 15 is installed through the base plate 1, and multiple spray heads 16 are installed below the coating box 15. The spray heads 16 are connected to the interior of the coating box 15. A control valve 18 is installed on the discharge pipe 17. When the control valve 18 is opened, the polyurethane waterproof coating in the storage tank 5 is transported to the coating box 15 through the discharge pipe 17, and then sprayed onto the coating through the spray heads 16. The coating box 15 and the storage tank 5 are connected by the discharge pipe 17. Spray heads 16 are installed on both the front and rear sides of the lower surface of the storage tank 5. A magnetic block 19 is attached to the upper surface of the supporting base plate 1, and a vertical plate 20 is installed on the upper and lower sides of the vertical plate 20. Limit bolts 21 are installed on both sides of the vertical plate 20. A first baffle 22 and a second baffle 23 are installed on the front and rear sides of the interior of the coating box 15, respectively. Metal blocks 24 are installed on the upper ends of both the first baffle 22 and the second baffle 23, and the metal blocks 24 are connected by connecting rings 25. A positioning groove 26 is opened on the rear side of the rear metal block 24. The vertical plate 20 is located on the rear side of the storage tank 5. Limit bolts 21 are installed on the lower surfaces of both the first baffle 22 and the second baffle 23. With a sealing strip, both the first baffle 22 and the second baffle 23 are slidably connected to the coating box 15. When it is necessary to reduce the coating width, rotate the upper limiting bolt 21 to move it away from the positioning groove 26 on the metal block 24, and then move the metal block 24 downward. The metal block 24 drives the first baffle 22 and the second baffle 23 downward. Then rotate the limiting bolt 21 to engage with the positioning groove 26 on the metal block 24, thereby reducing the number of spray heads 16 that can discharge material, thus reducing the coating width; after adjustment, the first baffle 22 and the second baffle 23 are slidably connected to the coating box 15. The sealing strip on the lower surface of the second baffle 23 can ensure the seal between it and the coating box 15, thereby changing the flow path of the coating in the coating box 15 and adjusting the coating width to meet the needs of different construction scenarios. Similarly, when restoring the coating width, the metal block 24 is moved upward, and the metal block 24 drives the first baffle 22 and the second baffle 23 to move upward. The metal block 24 is attracted to the magnetic block 19 above to achieve auxiliary positioning. Then, the limiting bolt 21 is rotated to engage with the positioning groove 26 on the metal block 24.

[0037] Working Principle: When using this polyurethane waterproof coating application device, firstly, the polyurethane waterproof coating is added to the storage tank 5 through the feed hopper 6. The servo motor 9 is started, and its output shaft drives the stirring shaft 10 to rotate. The stirring blades on the stirring shaft 10 thoroughly stir the coating in the storage tank 5, ensuring the uniformity of the coating. Since the drive shaft 11 is connected to the stirring shaft 10 via a connecting belt 12, the rotation of the stirring shaft 10 drives the drive shaft 11 to rotate within the limiting sleeve 13 via the belt drive, thereby causing the drying fan 14 installed at the lower end of the drive shaft 11 to rotate accordingly, generating airflow.

[0038] The actuator opens the control valve 18 on the discharge pipe 17, and the paint in the storage tank 5 flows into the coating box 15 under gravity through the discharge pipe 17. Multiple spray nozzles 16 below the coating box 15 spray the paint evenly onto the construction surface. At this time, the air blown by the drying fan 14 will accelerate the drying process of the paint and reduce the time required for the paint to dry naturally.

[0039] When it is necessary to reduce the coating width, rotate the upper limiting bolt 21 to move it away from the positioning groove 26 on the metal block 24, and then move the metal block 24 downward. The metal block 24 drives the first baffle 22 and the second baffle 23 to move downward. Then rotate the limiting bolt 21 to engage with the positioning groove 26 on the metal block 24, thereby reducing the number of spray heads 16 that can discharge material and thus reducing the coating width. After adjustment, the sealing strips on the lower surfaces of the first baffle 22 and the second baffle 23 can ensure the sealing between them and the coating box 15, thereby changing the flow path of the paint in the coating box 15 and adjusting the coating width to meet the needs of different construction scenarios. Similarly, when restoring the coating width, move the metal block 24 upward. The metal block 24 drives the first baffle 22 and the second baffle 23 to move upward. The metal block 24 is attracted to the magnetic block 19 above to achieve auxiliary positioning. Then rotate the limiting bolt 21 to engage with the positioning groove 26 on the metal block 24.

[0040] This completes a series of tasks. Any content not described in detail in this specification is prior art known to those skilled in the art.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A coating device for polyurethane waterproofing coating, comprising a support base plate (1) and a coating box (15), characterized in that: A support frame (3) is installed on the left side of the support base plate (1), and a storage bucket (5) is installed on the top of the support base plate (1) via a fixed seat (4). A reinforcing block (7) is installed on the right side of the support frame (3). A connecting plate (8) is installed on the upper right side of the support frame (3), and a servo motor (9) is installed on the connecting plate (8). A stirring shaft (10) is installed below the servo motor (9) via an output shaft. A transmission shaft (11) is installed below the connecting plate (8) via a bearing seat. The transmission shaft (11) and the stirring shaft (10) are connected by a connecting belt (12). A limit sleeve (13) is installed on the reinforcing block (7). A drying fan (14) is installed at the lower end of the transmission shaft (11). A coating box (15) is installed through the support base plate (1), and a spray head (16) is installed below the coating box (15). The coating box (15) is connected to the storage tank (5) through a discharge pipe (17). Magnetic blocks (19) are installed on both the front and rear sides of the lower surface of the storage tank (5). A vertical plate (20) is installed on the upper surface of the support base plate (1), and limit bolts (21) are installed on both the upper and lower sides of the vertical plate (20). A first baffle (22) and a second baffle (23) are installed on the front and rear sides of the interior of the coating box (15). Metal blocks (24) are installed on the upper ends of the first baffle (22) and the second baffle (23), and the metal blocks (24) are connected by a connecting ring (25). A positioning groove (26) is opened on the rear side of the rear metal block (24).

2. The polyurethane waterproof coating apparatus according to claim 1, characterized in that: Rolling wheels (2) are installed below the supporting base plate (1), and there are four rolling wheels (2) arranged in a rectangular structure.

3. The polyurethane waterproof coating application apparatus according to claim 1, characterized in that: The storage bin (5) is equipped with a feeding hopper (6) on the right side, and the bottom surface of the feeding hopper (6) is designed with an inclined structure. The reinforcing block (7) is fixedly connected to the storage bin (5).

4. The polyurethane waterproof coating application apparatus according to claim 1, characterized in that: The stirring shaft (10) is equipped with stirring blades, and both the stirring shaft (10) and the drive shaft (11) are equipped with pulleys.

5. The polyurethane waterproof coating application apparatus according to claim 4, characterized in that: The drive shaft (11) is rotatably connected to the limiting sleeve (13), and the drying fan (14) is located on the left side of the coating box (15).

6. The polyurethane waterproof coating application apparatus according to claim 1, characterized in that: Multiple spray heads (16) are provided, and the spray heads (16) are connected to the interior of the coating box (15). A control valve (18) is installed on the discharge pipe (17).

7. The polyurethane waterproof coating application apparatus according to claim 1, characterized in that: The vertical plate (20) is located on the rear side of the storage tank (5). The lower surfaces of the first baffle (22) and the second baffle (23) are both equipped with sealing strips. The first baffle (22) and the second baffle (23) are slidably connected to the coating box (15).