Dairy product storage tank convenient to disinfect
By introducing a worm gear mechanism and food-grade stainless steel into dairy storage tanks, the angle of the stirring blades can be adjusted, solving the problem of limited stirring range and improving stirring efficiency and cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI XINTIAN DAIRY CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-28
AI Technical Summary
The stirring blades of existing dairy storage tanks have a fixed angle, which is difficult to adjust, resulting in limited stirring range and effect.
An adjustable stirring blade angle dairy storage tank was designed. The tilt angle of the stirring blade can be adjusted by driving a threaded rod and a lifting ring through a worm gear and worm wheel mechanism. Food-grade stainless steel is used to ensure no contamination.
It improves the mixing range and efficiency, enhances the mixing effect, and ensures cleanliness and freedom of contamination inside the tank through a sealed structure.
Smart Images

Figure CN224171643U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dairy product storage tanks, specifically a dairy product storage tank that is easy to sterilize. Background Technology
[0002] Dairy storage tanks, also known as milk storage tanks, are used to store dairy products. They are generally made of cylindrical stainless steel and contain a stirrer to prevent milk fat from rising to the surface. To ensure the hygiene and safety of dairy production and product quality, the inner walls of the storage tanks usually need to be cleaned and disinfected before and after use.
[0003] According to Chinese Patent No. CN222055984U, a disinfection device for the inner wall of a storage tank used in dairy production is disclosed. This utility model has multiple sets of nozzles fixedly installed on a rotating shaft, which facilitates the spraying of cleaning liquid onto the inner wall of the tank. Moreover, the rotating shaft is driven by a motor to rotate, and the rotating shaft can rotate with the nozzles, which can increase the spraying area of the nozzles and improve the disinfection efficiency.
[0004] Regarding the aforementioned patent content, since a stirring mechanism is installed inside the dairy product storage tank, the dairy products can be stirred by the stirring mechanism. The stirring mechanism can keep the dairy products in a uniform mixing state in the tank, preventing fat from floating and protein from settling. However, the angle of the stirring blades on the stirring mechanism is inconvenient to fix, making it difficult to adjust the angle of the stirring blades and stir different areas, thereby reducing the stirring range and stirring effect of the stirring mechanism. Utility Model Content
[0005] Therefore, the purpose of this utility model is to provide a dairy product storage tank that is easy to sterilize, so as to solve the technical problem of the inconvenience of adjusting the angle of the stirring blades on the stirring mechanism.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a dairy product storage tank that facilitates sterilization, comprising a tank body, an installation port on the top of the tank body, an installation ring bolted to the top of the tank body, a turntable connected to the inside of the installation ring via a bearing, and a stirring shaft extending into the tank body mounted on the turntable, multiple stirring blades rotatably connected to the outer wall of the stirring shaft, a side plate fixed to one side of the stirring shaft, and a threaded rod connected to the top of the side plate via a sealed bearing, a lifting ring threaded to the outer wall of the threaded rod, a rotating shaft connected to the turntable via a bearing, a first pull plate rotatably connected between the lifting ring and the four stirring blades above, a second pull plate rotatably connected between every two stirring blades, two fixing plates mounted on the top of the turntable, a worm gear connected between the two fixing plates via a bearing, a knob mounted on one end of the worm gear, and a worm wheel mounted on the top of the rotating shaft.
[0007] By adopting the above technical solution, when the lifting ring moves upward, it will pull the first pull plate to rotate, which in turn pulls the four stirring blades above to rotate, and then pulls the second pull plate to rotate, which in turn drives the stirring blades below to rotate, so as to adjust the tilt angle of the stirring blades.
[0008] Furthermore, the bottom end of the rotating shaft is fixedly connected to the top end of the threaded rod, and a second sealing ring is installed between the rotating shaft and the turntable.
[0009] By adopting the above technical solution, the worm gear can drive the shaft to rotate when it rotates, and the rotation of the shaft will drive the threaded rod to rotate. The setting of the second sealing ring can improve the sealing between the shaft and the turntable.
[0010] Furthermore, a motor is installed on one side of the top of the mounting ring, and the output end of the motor is connected to a driving bevel gear. A driven bevel gear is installed on the upper part of the outer wall of the stirring shaft, and the driven bevel gear meshes with the driving bevel gear.
[0011] By adopting the above technical solution, when it is necessary to rotate the stirring shaft, the motor can be started. The operation of the motor can drive the active bevel gear to rotate. When the active bevel gear rotates, it will drive the driven bevel gear to rotate, and then drive the stirring shaft to rotate.
[0012] Furthermore, a rotary joint is installed at the top of the stirring shaft, a double-pass pipe is installed on the rotary joint, and two valves are installed on the double-pass pipe. Both ends of the double-pass pipe are equipped with connecting flanges. A liquid delivery channel is also opened at the top of the stirring shaft. Multiple one-way valves are also installed on the upper part of the outer wall of the stirring shaft, and the one-way valves are connected to the liquid delivery channel.
[0013] By adopting the above technical solution, the rotary joint allows the stirring shaft to rotate, while the double-pipe does not need to rotate.
[0014] Furthermore, a steam pipe is connected to one side of the top of the tank, and a feed pipe is connected to the other side of the top of the tank.
[0015] By adopting the above technical solution, the steam pipeline is designed to allow high-temperature steam to enter the tank, while the feed pipe is designed to allow materials to enter the tank.
[0016] Furthermore, a discharge pipe is connected to the bottom of the tank, and valves are installed on the discharge pipe, steam pipe, and feed pipe.
[0017] By adopting the above technical solution, when it is necessary to discharge material, the valve on the discharge pipe can be opened, and the material will be discharged through the discharge pipe.
[0018] Furthermore, the mounting ring is located inside the mounting opening, and the mounting ring is adapted to the mounting opening.
[0019] By adopting the above technical solution, the mounting ring can be installed inside the mounting port, and the mounting port can be sealed.
[0020] Furthermore, a first sealing ring is provided between the mounting ring and the mounting port, and between the turntable and the mounting ring.
[0021] By adopting the above technical solution, the setting of the first sealing ring can improve the sealing performance between the mounting ring and the mounting port.
[0022] Furthermore, the lifting ring is sleeved on the outer wall of the stirring shaft.
[0023] By adopting the above technical solution, the lifting ring can slide on the stirring shaft.
[0024] Furthermore, the stirring shaft, stirring blades, lifting ring, first pull plate, second pull plate, threaded rod, and side plate are all made of food-grade stainless steel.
[0025] By adopting the above technical solution, the stirring shaft and stirring blades made of food-grade stainless steel can be stirred inside the tank without contaminating the dairy products.
[0026] In summary, the present invention has the following main advantages:
[0027] 1. This utility model is equipped with a lifting ring, a first pull plate, stirring blades, a second pull plate, a threaded rod, a rotating shaft, a worm gear, and a worm wheel. When the angle of the stirring blades needs to be adjusted, the operator rotates the worm gear by turning a knob. The rotation of the worm gear drives the worm wheel to rotate, which in turn drives the rotating shaft to rotate. The rotation of the rotating shaft drives the threaded rod to rotate, which in turn moves the lifting ring. When the lifting ring moves, it pulls the first pull plate to rotate, which in turn pulls the four stirring blades above to rotate. Then, it pulls the second pull plate to rotate, which in turn drives the stirring blades below to rotate, so as to adjust the tilt angle of the stirring blades. Adjusting the angle of the stirring blades allows the stirring blades to apply force to the dairy products at different positions and directions, thereby adjusting the stirring coverage and further improving the stirring effect and efficiency of the dairy products.
[0028] 2. This utility model features a second sealing ring, which improves the sealing between the rotating shaft and the turntable. The worm and worm wheel mesh with each other and have self-locking properties, meaning that the worm wheel will not rotate if the worm is not rotated, thus preventing the rotating shaft from rotating arbitrarily. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0030] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;
[0031] Figure 3 This is a schematic diagram of the front section structure of the tank body of this utility model;
[0032] Figure 4 This is a schematic diagram of the mounting ring structure of this utility model;
[0033] Figure 5 This is a schematic diagram of the turntable structure of this utility model;
[0034] Figure 6 This is a schematic diagram of the stirring shaft structure of this utility model;
[0035] Figure 7 This is a schematic diagram of the stirring blade structure of this utility model;
[0036] Figure 8 This is a schematic diagram of the side panel structure of this utility model;
[0037] Figure 9 For the present utility model Figure 2 A magnified structural diagram of point A in the middle.
[0038] In the diagram: 1. Tank body; 2. Steam pipe; 3. Feed pipe; 4. Discharge pipe; 5. Mounting port; 6. Mounting ring; 7. Motor; 8. Driving bevel gear; 9. Driven bevel gear; 10. Infusion channel; 11. Rotary joint; 12. Check valve; 13. First sealing ring; 14. Turntable; 15. Stirring shaft; 16. Lifting ring; 17. First pull plate; 18. Stirring blade; 19. Second pull plate; 20. Side plate; 21. Threaded rod; 22. Rotating shaft; 23. Second sealing ring; 24. Fixing plate; 25. Worm gear; 26. Knob; 27. Worm wheel; 28. Double-pass pipe. Detailed Implementation
[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0040] The embodiments of this utility model will be described below based on its overall structure.
[0041] Example 1:
[0042] A dairy product storage container that is easy to sterilize, such as Figures 1-9As shown, the device includes a tank 1, which is a food-grade stainless steel tank. The top of the tank 1 has an installation port 5. An installation ring 6 is also bolted to the top of the tank 1. A turntable 14 is connected to the inside of the installation ring 6 via a bearing. A stirring shaft 15 extending into the tank 1 is mounted on the turntable 14. Multiple stirring blades 18 are rotatably connected to the outer wall of the stirring shaft 15. A side plate 20 is fixed to one side of the stirring shaft 15. A threaded rod 21 is connected to the top of the side plate 20 via a sealed bearing. The side plate 20 does not obstruct the rotation of the stirring blades 18 and the second pull plate 19. A lifting ring 16 is threadedly connected to the outer wall of the threaded rod 21. The installation ring 6 is located inside the installation port 5. The installation ring 6 is adapted to the installation port 5 so that the installation ring 6 can be installed inside the installation port 5 and can seal the installation port 5.
[0043] See Figures 2-7 The turntable 14 is also connected to a rotating shaft 22 via bearings. A first pull plate 17 is rotatably connected between the lifting ring 16 and the four stirring blades 18 above. A second pull plate 19 is rotatably connected between every two stirring blades 18. Two fixed plates 24 are also installed on the top of the turntable 14. A worm gear 25 is connected between the two fixed plates 24 via bearings, and a knob 26 is installed at one end of the worm gear 25. A worm wheel 27 is installed at the top of the rotating shaft 22. When the lifting ring 16 moves upward, it will pull the first pull plate 17 to rotate, and the first pull plate 17 will pull the four stirring blades 18 above. Rotate the second pull plate 19 to rotate, which in turn drives the stirring blade 18 below to rotate, so as to adjust the tilt angle of the stirring blade 18. The bottom end of the rotating shaft 22 is fixedly connected to the top end of the threaded rod 21. A second sealing ring 23 is installed between the rotating shaft 22 and the turntable 14 so that the rotating shaft 22 can be driven to rotate when the worm gear 25 rotates. The rotation of the rotating shaft 22 will drive the threaded rod 21 to rotate. The setting of the second sealing ring 23 can improve the sealing between the rotating shaft 22 and the turntable 14. The bearings and the sealing bearings are all food-grade stainless steel bearings and food-grade stainless steel sealing bearings.
[0044] Specifically, a motor 7 is installed on one side of the top of the mounting ring 6. The output end of the motor 7 is connected to a driving bevel gear 8. A driven bevel gear 9 is installed on the upper part of the outer wall of the stirring shaft 15, and the driven bevel gear 9 meshes with the driving bevel gear 8. When the stirring shaft 15 needs to be rotated, the motor 7 can be started. The operation of the motor 7 can drive the driving bevel gear 8 to rotate. When the driving bevel gear 8 rotates, it will drive the driven bevel gear 9 to rotate, and then drive the stirring shaft 15 to rotate. A rotary joint 11 is installed at the top of the stirring shaft 15. A double-pass pipe 28 is installed on the rotary joint 11, and two valves are installed on the double-pass pipe 28. Both ends of the double-pass pipe 28 are equipped with... Equipped with a connecting flange, one end of the double-pipe 28 is connected to the food-grade cleaning agent inlet pipe via the flange, and the food-grade cleaning agent inlet pipe is connected to an external water pump. The other end of the double-pipe 28 is connected to the warm water delivery pipe via the flange, and the warm water delivery pipe is connected to an external water pump. At the same time, the steam pipe 2 is connected to an external high-temperature steam delivery pipe. The top of the stirring shaft 15 is also provided with a liquid delivery channel 10. Multiple one-way valves 12 are also installed on the upper part of the outer wall of the stirring shaft 15. The one-way valves 12 are connected to the liquid delivery channel 10. The setting of the rotary joint 11 allows the stirring shaft 15 to rotate, while the double-pipe 28 does not need to rotate.
[0045] See Figures 2-8 The lifting ring 16 is sleeved on the outer wall of the stirring shaft 15 and can slide on the stirring shaft 15. A steam pipe 2 is connected to one side of the top of the tank body 1 and a feed pipe 3 is connected to the other side of the top of the tank body 1. The steam pipe 2 is designed to allow high-temperature steam to enter the tank body 1 through the steam pipe 2, while the feed pipe 3 is designed to allow the material to enter the tank body 1. A discharge pipe 4 is connected to the bottom of the tank body 1. Valves are installed on the discharge pipe 4, the steam pipe 2 and the feed pipe 3. When it is necessary to discharge the material, the valve on the discharge pipe 4 can be opened, and the material will be discharged through the discharge pipe 4. The valve on the discharge pipe 4 can be a solenoid valve.
[0046] Example 2:
[0047] Based on the above embodiment 1, in order to improve the sealing between the mounting ring 6 and the mounting port 5, the following structure will be set.
[0048] Specifically, a first sealing ring 13 is provided between the mounting ring 6 and the mounting port 5, and between the turntable 14 and the mounting ring 6. The first sealing ring 13 can improve the sealing between the mounting ring 6 and the mounting port 5 and prevent the dairy products in the tank 1 from leaking.
[0049] Example 3:
[0050] Based on the above embodiment 1, in order to avoid contamination of dairy products by structures such as stirring shaft 15, stirring blade 18, lifting ring 16, first pull plate, second pull plate 19 and threaded rod 21, the following materials will be used.
[0051] See Figures 2-8 The stirring shaft 15, stirring blade 18, lifting ring 16, first pull plate 17, second pull plate 19, threaded rod 21 and side plate 20 are all made of food-grade stainless steel. The stirring shaft 15 and stirring blade 18 made of food-grade stainless steel can stir inside the tank 1 without contaminating the dairy products.
[0052] The working principle of this utility model is as follows: First, when disinfecting tank 1, the discharge pipe 4 is opened to discharge the dairy products inside tank 1. After emptying tank 1, one end of the double-ended pipe 28 is connected to the food-grade cleaning agent inlet pipe via a flange, and the food-grade cleaning agent inlet pipe is connected to an external water pump. The other end of the double-ended pipe 28 is connected to the warm water delivery pipe via a flange, and the warm water delivery pipe is connected to an external water pump. At the same time, the steam pipe 2 is connected to the external high-temperature steam delivery pipe. Then, one valve on the double-ended pipe 28 is opened while the other valve is closed, so that the food-grade cleaning agent inlet pipe can deliver the cleaning agent. The solution is delivered into the double-pass pipe 28, and then enters the infusion channel 10 on the stirring shaft 15 through the rotary joint 11. At this time, the operator starts the motor 7. The motor 7 drives the active bevel gear 8 to rotate, which in turn drives the driven bevel gear 9 to rotate, which in turn drives the stirring shaft 15 to rotate, and drives the turntable 14 to rotate. Then, it drives the one-way valve 12 to rotate. At the same time, the cleaning agent flows into the one-way valve 12 through the infusion channel 10. The cleaning agent is sprayed out through the rotation of the one-way valve 12 so that it can be sprayed onto the inner wall of the tank 1. After the cleaning agent is sprayed onto the inner wall of the tank 1, it will flow down along the inner wall. As the cleaning agent continues to rotate and spray out, it can clean the inner wall of the tank 1.
[0053] After cleaning is completed, close the valve corresponding to the food-grade cleaning agent inlet pipe and open the discharge pipe 4 to discharge the cleaning agent. Then close the valve on the discharge pipe 4 and open the valve corresponding to the warm water delivery pipe so that the warm water temperature between 35-45℃ can enter the double-pass pipe 28 through the warm water delivery pipe and then enter the liquid delivery channel 10. At this time, start the motor 7 again to make the stirring shaft 15 and the one-way valve 12 rotate. The warm water is sprayed out through the rotating one-way valve 12 to rinse the inside of the tank 1. Then open the valve on the discharge pipe 4 to discharge the warm water. Then continue to fill in the warm water to continue rinsing the inside of the tank 1. After rinsing the inside of the tank 1, close the valve corresponding to the warm water delivery pipe. At this time, the warm water no longer enters the tank 1. After the warm water is discharged, close the valve on the discharge pipe 4.
[0054] Next, open the valve on the steam pipe 2 so that high-temperature steam above 85°C enters the tank 1 through the steam pipe 2 to sterilize the tank 1 at high temperature. After sterilization, the tank 1 is allowed to cool or dry naturally. If there is condensate in the tank after steam sterilization, it needs to be rinsed quickly with sterile water and dried immediately. Sterile water can enter the tank 1 through the feed pipe 3.
[0055] After the tank 1 is sterilized and dried, the operator can open the valve on the feed pipe 3 to add the dairy products into the tank 1. The tank 1 can then be used to store the dairy products. After adding the products, the valve can be closed. At the same time, the operator can start the motor 7. The motor 7 drives the stirring shaft 15 to rotate, which in turn drives the stirring blades 18 to rotate, thereby agitating the dairy products. When it is necessary to adjust the angle of the stirring blades 18, the operator can rotate the worm gear 25 through the knob 26. The rotation of the worm gear 25 will drive the worm wheel 27 to rotate, which in turn drives the rotating shaft 2. 2. Rotation: The rotation of the shaft 22 drives the threaded rod 21 to rotate. The rotation of the threaded rod 21 drives the lifting ring 16 to move. When the lifting ring 16 moves, it pulls the first pull plate 17 to rotate. The first pull plate 17 then pulls the four upper stirring blades 18 to rotate, and then pulls the second pull plate 19 to rotate, which in turn drives the lower stirring blades 18 to rotate. This allows the tilt angle of the stirring blades 18 to be adjusted. Adjusting the angle of the stirring blades 18 allows them to apply force to the dairy products in different positions and directions, thereby expanding the stirring coverage and improving the stirring efficiency.
[0056] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A dairy product storage tank that is easy to sterilize, comprising a tank body (1), characterized in that: The top of the tank (1) has an installation port (5). The top of the tank (1) is also bolted with an installation ring (6). The inside of the installation ring (6) is connected to a turntable (14) via a bearing. An agitator shaft (15) extending into the tank (1) is mounted on the turntable (14). Multiple agitator blades (18) are rotatably connected to the outer wall of the agitator shaft (15). A side plate (20) is fixed to one side of the agitator shaft (15). The top of the side plate (20) is connected to a threaded rod (21) via a sealed bearing. The outer wall of the threaded rod (21) is threaded. There is a lifting ring (16), and a rotating shaft (22) is connected to the turntable (14) via a bearing. The lifting ring (16) is rotatably connected to the four stirring blades (18) above by a first pull plate (17), and a second pull plate (19) is rotatably connected between every two stirring blades (18). Two fixing plates (24) are also installed on the top of the turntable (14). A worm gear (25) is connected between the two fixing plates (24) via a bearing, and a knob (26) is installed at one end of the worm gear (25). A worm wheel (27) is installed at the top of the rotating shaft (22).
2. The dairy product storage tank for easy sterilization according to claim 1, characterized in that: The bottom end of the rotating shaft (22) is fixedly connected to the top end of the threaded rod (21), and a second sealing ring (23) is installed between the rotating shaft (22) and the turntable (14).
3. A dairy product storage tank that is easy to sterilize according to claim 1, characterized in that: A motor (7) is installed on one side of the top of the mounting ring (6). The output end of the motor (7) is connected to a driving bevel gear (8). A driven bevel gear (9) is installed on the upper part of the outer wall of the stirring shaft (15), and the driven bevel gear (9) meshes with the driving bevel gear (8).
4. A dairy product storage tank that is easy to sterilize according to claim 1, characterized in that: A rotary joint (11) is installed at the top of the stirring shaft (15). A double-pass pipe (28) is installed on the rotary joint (11), and two valves are installed on the double-pass pipe (28). Both ends of the double-pass pipe (28) are equipped with connecting flanges. A liquid delivery channel (10) is also opened at the top of the stirring shaft (15). Multiple one-way valves (12) are also installed on the upper part of the outer wall of the stirring shaft (15). The one-way valves (12) are connected to the liquid delivery channel (10).
5. A dairy product storage tank that is easy to sterilize according to claim 1, characterized in that: A steam pipe (2) is connected to one side of the top of the tank (1), and a feed pipe (3) is connected to the other side of the top of the tank (1).
6. A dairy product storage tank that is easy to sterilize according to claim 5, characterized in that: The bottom of the tank (1) is connected to a discharge pipe (4), and valves are installed on the discharge pipe (4), steam pipe (2) and feed pipe (3).
7. A dairy product storage tank that is easy to sterilize according to claim 1, characterized in that: The mounting ring (6) is located inside the mounting port (5), and the mounting ring (6) is adapted to the mounting port (5).
8. A dairy product storage tank that is easy to sterilize according to claim 1, characterized in that: A first sealing ring (13) is provided between the mounting ring (6) and the mounting port (5) and between the turntable (14) and the mounting ring (6).
9. A dairy product storage tank that is easy to sterilize according to claim 1, characterized in that: The lifting ring (16) is sleeved on the outer wall of the stirring shaft (15).
10. A dairy product storage tank that is easy to sterilize according to claim 1, characterized in that: The stirring shaft (15), stirring blade (18), lifting ring (16), first pull plate (17), second pull plate (19), threaded rod (21) and side plate (20) are all made of food-grade stainless steel.
Citation Information
Patent Citations
Storage tank inner wall disinfection device for dairy product production
CN222055984U