A building waterproofing construction coating mixing device
By introducing a bevel gear transmission system and spiral mixing blades into the mixing tank, combined with an L-shaped scraper and automatic cleaning function, the problems of uneven mixing and difficult cleaning in traditional devices are solved, achieving uniform mixing and efficient application of coatings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING MUZHIBEN LANDSCAPING ENGINEERING CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional mixing devices struggle to achieve full blending and uniform dispersion of multi-component waterproof coatings with different viscosities, resulting in uneven mixing that affects waterproof performance. Furthermore, cleaning is time-consuming and labor-intensive, increasing maintenance costs.
The mixing tank with a bevel gear transmission system, combined with spiral mixing blades and L-shaped scrapers, achieves uniform mixing of the coating and automatically cleans it by spraying cleaning fluid with a water pump to reduce residue.
It improves the uniformity of coating mixing and construction efficiency, reduces cleaning difficulty and maintenance costs, and ensures the performance stability of waterproof coatings and the service life of equipment.
Smart Images

Figure CN224371216U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction equipment technology, and in particular to a mixing device for building waterproofing coatings. Background Technology
[0002] In the field of building construction, the mixing quality of waterproof coatings plays a decisive role in the durability and reliability of building waterproofing projects.
[0003] Traditional mixing devices often employ a single stirring structure, which makes it difficult to achieve full blending and uniform dispersion of the components when dealing with multi-component waterproof coatings of varying viscosities. This results in localized concentration differences in the mixed coating, affecting the density and waterproofing performance of the waterproof coating. Furthermore, cleaning the mixing tank requires significant manpower and time for disassembly and washing, reducing construction efficiency and accelerating equipment wear and tear, thus increasing maintenance costs. Therefore, we propose a new mixing device for building waterproof coatings to address this problem. Utility Model Content
[0004] The purpose of this utility model is to provide a mixing device for building waterproofing coatings to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A mixing device for building waterproofing coatings includes: a mixing tank, a discharge valve connected to the bottom of the mixing tank, a detachable top cover installed on the top of the mixing tank, a feed pipe connected to the top of the top cover, a frame fixedly installed on the top of the top cover, a drive motor fixedly installed on one side of the frame, a bevel gear one fixedly installed on the output end of the drive motor, a water tank provided on the top of the frame, a water pump fixedly installed at the bottom of the water tank, a water pipe connected to the outlet end of the water pump, a mixing shaft sleeve and a sleeve rotatably installed inside the top cover, the mixing shaft sleeve rotatably installed inside the sleeve, a bevel gear two and a spiral mixing blade fixedly installed on the outside of the mixing shaft sleeve, multiple spray nozzles opened on the outside of the mixing shaft sleeve, a bevel gear three and multiple sets of L-shaped scrapers fixedly installed on the outside of the sleeve, a rotating drum fixedly installed on the top of the bevel gear two, and the rotating drum rotatably installed on the top inner wall of the frame.
[0007] Preferably, a support ring is fixedly installed on the outside of the mixing tank, and multiple sets of support legs are fixedly installed on the bottom of the support ring. A connecting flange is fixedly installed on the outside of the top cover and the outside of the mixing tank. Multiple sets of fastening bolts are provided between the two sets of connecting flanges, and a water inlet is provided on the top of the water tank.
[0008] Preferably, the water pipe is installed through the top of the frame and inside the rotating drum, and the stirring shaft sleeve is rotatably installed on the bottom outside of the water pipe.
[0009] Preferably, the rotating drum is rotatably mounted on the top inner wall of the frame, and one side of the multiple sets of L scrapers abuts against the inner wall of the mixing tank.
[0010] Preferably, the first bevel gear meshes with the second and third bevel gears, and the first, second and third bevel gears are all disposed within the frame.
[0011] Preferably, the water pump inlet is connected to the bottom of the water tank, and the water pipe is connected to the stirring shaft sleeve.
[0012] In this utility model, a building waterproofing coating mixing device is provided. The mixing tank is stably placed by setting support legs and support rings. The top cover is tightly connected to the mixing tank by fastening bolts passing through the connecting flange. A water tank is filled with cleaning liquid for later use through a water inlet. The building waterproofing coating to be mixed is transported into the mixing tank through the feed pipe. After mixing, it is discharged through the discharge valve. This reduces equipment shaking and displacement, avoids problems such as uneven mixing and wear of equipment parts caused by instability, provides a stable environment for uniform mixing of coatings, reduces the risk of construction interruption due to equipment failure, and ensures the continuity and efficiency of building waterproofing construction.
[0013] This utility model has a reasonable structural design. By setting up a drive motor, bevel gear one, bevel gear two, and bevel gear three to cooperate, bevel gear two rotates relative to bevel gear three under the constraint of the rotating drum. Bevel gear two drives the stirring shaft sleeve and its outer spiral stirring blades to rotate, stirring and mixing the coating in the mixing tank to achieve initial mixing. Simultaneously, bevel gear three drives the sleeve and its outer L-shaped scraper to rotate in the opposite direction. The L-shaped scraper adheres closely to the inner wall of the mixing tank, scraping off the coating adhering to the inner wall, further improving the mixing uniformity. It also forms convection with the spiral stirring blades, enhancing the mixing effect. After the coating is evenly mixed, the discharge valve at the bottom of the mixing tank is opened, and the mixed coating is discharged through the discharge port. Furthermore, a water pump is installed to transport the cleaning solution from the water tank through a water pipe. Inside the mixing shaft sleeve, cleaning fluid is sprayed from multiple spray nozzles on the outside of the sleeve, rinsing the inner wall of the mixing tank, the mixing shaft sleeve, the sleeve, the spiral mixing blades, and the L-shaped scraper. Simultaneously, the drive motor continues to operate, rotating the mixing shaft sleeve and sleeve, allowing the cleaning fluid to more thoroughly rinse the inside of the device. The L-shaped scraper also assists in scraping away stubborn paint residue during rotation, ensuring faster and more uniform mixing of the paint components. This effectively improves the uniformity of paint mixing, ensures stable performance of the waterproof coating, enhances the quality of building waterproofing projects, and reduces the workload and costs of subsequent maintenance. It significantly saves cleaning time and labor costs, reduces paint waste, ensures the quality of subsequent mixing operations, and improves the efficiency and lifespan of the equipment. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of a building waterproofing coating mixing device proposed in this utility model;
[0015] Figure 2 This is a cross-sectional structural schematic diagram of a building waterproofing coating mixing device proposed in this utility model;
[0016] Figure 3 for Figure 2 A magnified view of part A in the middle;
[0017] Figure 4 for Figure 2 A magnified view of part B in the middle section.
[0018] In the diagram: 1. Mixing tank; 2. Support ring; 3. Support leg; 4. Discharge valve; 5. Top cover; 6. Connecting flange; 7. Fastening bolt; 8. Feed pipe; 9. Frame; 10. Drive motor; 11. Water tank; 12. Water inlet; 13. Bevel gear one; 14. Bevel gear two; 15. Mixing shaft sleeve; 16. Spray nozzle; 17. Spiral mixing blade; 18. Bevel gear three; 19. Sleeve; 20. L-shaped scraper; 21. Water pump; 22. Rotary drum; 23. Water pipe. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Reference Figure 1-4 A mixing device for building waterproofing coatings includes: a mixing tank 1, a discharge valve 4 connected to the bottom of the mixing tank 1, a detachable top cover 5 installed on the top of the mixing tank 1, a feed pipe 8 connected to the top of the top cover 5, a frame 9 fixedly installed on the top of the top cover 5, a drive motor 10 fixedly installed on one side of the frame 9, a bevel gear 13 fixedly installed on the output end of the drive motor 10, a water tank 11 provided on the top of the frame 9, a water pump 21 fixedly installed at the bottom of the water tank 11, and a discharge valve 4 connected to the bottom of the water pump 21. A water pipe 23 is installed at the water end. A stirring shaft sleeve 15 and a sleeve 19 are rotatably installed inside the top cover 5. The stirring shaft sleeve 15 is rotatably installed inside the sleeve 19. A bevel gear 14 and a spiral stirring blade 17 are fixedly installed on the outside of the stirring shaft sleeve 15. Multiple spray nozzles 16 are opened on the outside of the stirring shaft sleeve 15. A bevel gear 18 and multiple L scrapers 20 are fixedly installed on the outside of the sleeve 19. A rotating drum 22 is fixedly installed on the top of the bevel gear 14. The rotating drum 22 is rotatably installed on the top inner wall of the frame 9.
[0021] In this embodiment, a support ring 2 is fixedly installed on the outside of the mixing tank 1, and multiple sets of support legs 3 are fixedly installed at the bottom of the support ring 2. A connecting flange 6 is fixedly installed on the outside of the top cover 5 and the outside of the mixing tank 1. Multiple sets of fastening bolts 7 are provided between the two sets of connecting flanges 6. A water inlet 12 is provided on the top of the water tank 11. The detachable design significantly improves the convenience of equipment maintenance.
[0022] In this embodiment, the water pipe 23 is installed through the top of the frame 9 and inside the rotating drum 22, and the stirring shaft sleeve 15 is rotatably installed on the bottom outside of the water pipe 23 to reduce paint residue and provide good conditions for the next mixing operation.
[0023] In this embodiment, the rotating drum 22 is rotatably mounted on the top inner wall of the frame 9, and one side of the multiple sets of L scrapers 20 abuts against the inner wall of the mixing tank, reducing the difficulty and workload of manual cleaning and improving cleaning efficiency.
[0024] In this embodiment, bevel gear 13 meshes with bevel gear 2 14 and bevel gear 3 18. Bevel gear 13, bevel gear 2 14 and bevel gear 3 18 are all set in the frame 9 to ensure that the components of the coating are fully and evenly mixed, thereby improving the quality of the waterproof coating.
[0025] In this embodiment, the water inlet 12 of the water pump 21 is connected to the bottom of the water tank 11, and the water pipe 23 is connected to the stirring shaft sleeve 15, which improves the cleaning efficiency and reduces paint residue.
[0026] In this embodiment, during use, the mixing tank 1 is placed securely by the support legs 3 and the support ring 2, and the top cover 5 is tightly connected to the mixing tank 1 by fastening bolts 7 passing through the connecting flange 6. Cleaning liquid is injected from the water inlet 12 at the top of the water tank 11 for later use, and the building waterproofing coating to be mixed is transported into the mixing tank 1 through the feed pipe 8.
[0027] The drive motor 10 is started to drive the bevel gear 13 to rotate. Since the bevel gear 13 meshes with the bevel gear 2 14 and the bevel gear 3 18, the bevel gear 2 14 is driven to rotate relative to the bevel gear 3 18 under the restriction of the rotating drum 22. The bevel gear 2 14 drives the stirring shaft sleeve 15 and the spiral stirring blade 17 on its outer side to rotate, stirring and mixing the paint in the mixing tank 1 to achieve preliminary mixing. At the same time, the bevel gear 3 18 drives the sleeve 19 and the L scraper 20 on its outer side to rotate in the opposite direction. The L scraper 20 is close to the inner wall of the mixing tank 1 to scrape off the paint adhering to the inner wall, further improving the mixing uniformity. It also forms convection with the spiral stirring blade 17 to enhance the mixing effect. After the paint is mixed evenly, the discharge valve 4 at the bottom of the mixing tank 1 is opened, and the mixed paint is discharged through the discharge port.
[0028] After the material is discharged, the discharge valve 4 is closed, and the water pump 21 is started to transport the cleaning liquid in the water tank 11 to the mixing shaft sleeve 15 through the water pipe 23. The cleaning liquid is sprayed out from the multiple spray nozzles 16 on the outside of the mixing shaft sleeve 15 to rinse the inner wall of the mixing tank 1, the mixing shaft sleeve 15, the sleeve 19, the spiral mixing blade 17 and the L scraper 20. At the same time, the drive motor 10 continues to work, driving the mixing shaft sleeve 15 and the sleeve 19 to rotate, so that the cleaning liquid can more thoroughly rinse the inside of the device. The L scraper 20 also assists in scraping away stubborn residual paint during the rotation process. After cleaning, the discharge valve 4 is opened to discharge the sewage and residual paint into the mixing tank 1 through the discharge valve 4.
[0029] The above provides a detailed description of a building waterproofing coating mixing device. Specific embodiments have been used to illustrate the principle and implementation of this utility model. These embodiments are only intended to aid in understanding the method and core concept of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A mixing device for building waterproofing coatings, characterized in that, include: A mixing tank (1) is provided, with a discharge valve (4) connected to the bottom of the mixing tank (1). A top cover (5) is detachably installed on the top of the mixing tank (1). A feed pipe (8) is connected to the top of the top cover (5). A frame (9) is fixedly installed on the top of the top cover (5). A drive motor (10) is fixedly installed on one side of the frame (9). A bevel gear (13) is fixedly installed on the output end of the drive motor (10). A water tank (11) is provided on the top of the frame (9). A water pump (21) is fixedly installed at the bottom of the water tank (11). A water outlet is connected to the outlet of the water pump (21). The tube (23) has a stirring shaft sleeve (15) and a sleeve (19) rotatably installed inside the top cover (5). The stirring shaft sleeve (15) is rotatably installed inside the sleeve (19). A bevel gear (14) and a spiral stirring blade (17) are fixedly installed on the outside of the stirring shaft sleeve (15). Multiple spray nozzles (16) are opened on the outside of the stirring shaft sleeve (15). A bevel gear (18) and multiple L scrapers (20) are fixedly installed on the outside of the sleeve (19). A rotating drum (22) is fixedly installed on the top of the bevel gear (14). The rotating drum (22) is rotatably installed on the top inner wall of the frame (9).
2. The building waterproofing coating mixing device according to claim 1, characterized in that, A support ring (2) is fixedly installed on the outside of the mixing tank (1). Multiple sets of support legs (3) are fixedly installed at the bottom of the support ring (2). A connecting flange (6) is fixedly installed on the outside of the top cover (5) and the outside of the mixing tank (1). Multiple sets of fastening bolts (7) are provided between the two sets of connecting flanges (6). A water inlet (12) is provided on the top of the water tank (11).
3. The mixing device for building waterproofing coatings according to claim 1, characterized in that, The water pipe (23) is installed through the top of the frame (9) and inside the rotating drum (22), and the stirring shaft sleeve (15) is rotatably installed on the bottom outside of the water pipe (23).
4. The mixing device for building waterproofing coatings according to claim 1, characterized in that, The rotating drum (22) is rotatably mounted on the top inner wall of the frame (9), and one side of the multiple sets of L scrapers (20) abuts against the inner wall of the mixing tank.
5. The building waterproofing coating mixing device according to claim 1, characterized in that, The first bevel gear (13) meshes with the second bevel gear (14) and the third bevel gear (18), and the first bevel gear (13), the second bevel gear (14) and the third bevel gear (18) are all set in the frame (9).
6. The mixing device for building waterproofing coatings according to claim 1, characterized in that, The water inlet (12) of the water pump (21) is connected to the bottom of the water tank (11), and the water pipe (23) is connected to the stirring shaft sleeve (15).