A mixing jar for yogurt preparation
By designing stirring blades with bent and limiting structures, the problems of uneven stirring and incomplete cleaning of yogurt were solved, achieving uniform stirring and cleaning effects during the yogurt preparation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU QIANDAO LAKE MIAOPIN FOOD CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-26
AI Technical Summary
Existing yogurt stirring devices cannot ensure the uniformity of stirring and the cleaning effect on the inner wall of the container, resulting in some yogurt adhering to the inner wall of the container and being difficult to remove.
A stirring tank for yogurt preparation was designed, which adopts stirring blades with a bent structure and a limiting structure. When rotating in the forward direction, the stirring resistance is small and suitable for normal stirring, while when rotating in the reverse direction, the resistance is large and suitable for strong stirring. The inner wall is kept clean by a scraper structure.
It achieves uniform stirring and cleaning of the inner wall of the tank, ensuring the stirring effect and cleaning efficiency during the yogurt preparation process, and avoiding yogurt residue.
Smart Images

Figure CN224270870U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of yogurt preparation technology and relates to a stirring tank for yogurt preparation. Background Technology
[0002] Yogurt is a dairy product made from milk that has been pasteurized, then inoculated with beneficial bacteria, fermented, and finally cooled and packaged. Currently, most yogurt products on the market are set-type, stirred-type, or fruit-flavored with added fruit juices, jams, and other toppings. Yogurt not only retains all the advantages of milk, but also enhances certain aspects through processing, making it a more suitable nutritional and health-promoting product for humans.
[0003] CN108719467A discloses a yogurt fermentation device that is easy to clean. It includes a tank, a lid for covering the tank, a stirring mechanism mounted on the lid, and a water spraying device. The stirring mechanism includes a motor, a stirring shaft fixedly connected to the motor's output shaft, and multiple impellers mounted on the stirring shaft. Each impeller includes a bushing fitted onto the stirring shaft and multiple blades radially and evenly distributed on the outer cylindrical surface of the bushing. The blades have multiple folded edges forming an arched structure. When the stirring mechanism rotates forward for stirring, the convex surface of the arched structure faces forward, and the edge lines of the folded edges of the blades form an angle of 10 to 30 degrees with the axis of the stirring shaft. The spray nozzle of the water spraying device faces the blades. When the stirring mechanism rotates in the opposite direction for cleaning, the blades can reflect the sprayed water onto the inner wall of the tank at different angles. The above application has the following problems: ① It cannot solve the problem of uniform stirring of the yogurt adhering to the tank wall; ② It cannot fully rinse the inner wall of the tank, and some yogurt will still adhere to the inner wall.
[0004] To address the aforementioned problems, this utility model proposes a stirring tank for yogurt preparation. Utility Model Content
[0005] To address the problems existing in the background technology, this utility model proposes a stirring tank for yogurt preparation.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a stirring tank for yogurt preparation, comprising a tank body and a stirring device mounted on the tank body; the stirring device includes a stirring motor mounted on the tank body and a stirring mechanism disposed within the tank body; the stirring mechanism includes a mounting shaft and a plurality of stirring blades with bent structures evenly distributed on the mounting shaft; the stirring blades include a first stirring structure and a second stirring structure, the first stirring structure being hinged to the second stirring structure, and the second stirring structure abutting against the inner wall of the tank body.
[0007] Furthermore, the tank body is provided with a feed inlet and the tank body is provided with a discharge outlet at the bottom.
[0008] Furthermore, the first stirring structure includes a first stirring plate, one end of which is mounted on the mounting shaft, and the other end of which is provided with a first connecting portion.
[0009] Furthermore, the first stirring plate is provided with a plurality of first clearance holes.
[0010] Furthermore, the second stirring structure includes a second stirring plate, a scraper portion is installed at one end of the second stirring plate, and a second connecting portion adapted to the first connecting portion is provided at the other end of the second stirring plate. The first stirring plate and the second stirring plate are hinged together through the first connecting portion and the second connecting portion, and a torsion spring is provided between the first connecting portion and the second connecting portion.
[0011] Furthermore, the second stirring plate is provided with a plurality of second clearance holes.
[0012] Furthermore, a first limiting part is installed on the first connecting part, and a second limiting part is installed on the second connecting part.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. In this utility model, when the stirring mechanism rotates in the forward direction to perform stirring operations, the convex surface of the stirring blade with the bent structure faces forward. Therefore, the stirring resistance is small in the forward rotation mode, which is suitable for normal stirring. The resistance is large in the reverse rotation mode, which is suitable for strong stirring.
[0015] 2. When the stirring blades rotate in the forward direction, the second stirring structure can rotate around the first stirring structure; when the stirring blades rotate in the reverse direction, due to the limiting structure, the second stirring structure cannot rotate with the first stirring structure. Initially, due to the torsion spring, when the stirring blades rotate in the forward direction and stir the yogurt, the convex surface of the stirring blades with the bent structure faces forward. When encountering significant resistance, the second stirring structure rotates along the first stirring structure, creating a buffer. The forward stirring mode has lower stirring resistance and is suitable for normal stirring. When the stirring blades rotate in the reverse direction, due to the limiting structure, the stirring blades always abut against the inner wall of the tank, resulting in higher resistance during reverse rotation, making it suitable for strong stirring. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the stirring mechanism in this utility model;
[0018] Figure 3 This is a top view of the stirring mechanism in this utility model.
[0019] In the diagram: 1. Tank body; 2. Stirring motor; 3. Stirring mechanism; 31. Mounting shaft; 32. Stirring blade; 321. First stirring structure; 321a. First stirring plate; 321b. First connecting part; 322. Second stirring structure; 322a. Second stirring plate; 322b. Scraper part; 322c. Second connecting part; 4. Feed inlet; 5. First clearance hole; 6. Torsion spring; 7. Second clearance hole; 8. First limiting part; 9. Second limiting part. Detailed Implementation
[0020] 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.
[0021] like Figures 1-3 As shown, the technical solution adopted by this utility model is as follows: A stirring tank for yogurt preparation includes a tank body 1 and a stirring device installed on the tank body 1; the stirring device includes a stirring motor 2 installed on the tank body 1 and a stirring mechanism 3 disposed inside the tank body 1; the stirring motor 2 drives the stirring mechanism 3 to stir the yogurt raw materials inside the tank body 1. The stirring mechanism 3 includes a mounting shaft 31 and a plurality of stirring blades 32 with bent structures evenly distributed on the mounting shaft 31. When the stirring mechanism 3 rotates in the forward direction to perform stirring operations, the convex surface of the stirring blades 32 with bent structures faces forward, so the stirring resistance is small in the forward rotation mode, which is suitable for normal stirring, while the resistance is large in the reverse rotation mode, which is suitable for strong stirring.
[0022] In this embodiment, the stirring blade 32 includes a first stirring structure 321 and a second stirring structure 322. The first stirring structure 321 is hinged to the second stirring structure 322, and the second stirring structure 322 abuts against the inner wall of the tank 1. A limiting structure is also installed between the first stirring structure 321 and the second stirring structure 322. A torsion spring 6 is also installed at the hinge point between the first stirring structure 321 and the second stirring structure 322. The first stirring structure 321 and the second stirring structure 322 are in a bent state, and the limiting structure is located at the hinge position between the first stirring structure 321 and the second stirring structure 322. When the stirring blade 32 rotates in the forward direction, the second stirring structure 322 can rotate around the first stirring structure 321; when the stirring blade 32 rotates in the reverse direction, due to the limiting structure, the second stirring structure 322 cannot rotate with the first stirring structure 321. In the initial state, due to the action of the torsion spring 6, when the stirring blade 32 rotates forward and stirs the yogurt, the convex surface of the stirring blade 32 with its bent structure faces forward. When encountering greater resistance, the second stirring structure 322 rotates along the first stirring structure 321, forming a stop. The stirring resistance in the forward mode is relatively small, suitable for normal stirring. When the stirring blade 32 rotates in the reverse direction, due to the action of the limiting structure, the stirring blade 32 always abuts against the inner wall of the tank 1. The resistance of the reverse rotation is greater, suitable for strong stirring.
[0023] In this embodiment, the tank body 1 has a feed inlet 4 and a discharge outlet at the bottom. When the tank body 1 needs to be cleaned, the feed inlet 4 is used as a water inlet.
[0024] In this embodiment, the first stirring structure 321 includes a first stirring plate 321a, one end of which is mounted on the mounting shaft 31, and the other end of which is integrally formed with a first connecting portion 321b. The first stirring plate 321a is used to stir the yogurt in the tank 1.
[0025] In this embodiment, the first stirring plate 321a is provided with a plurality of first clearance holes 5. When the first stirring plate 321a stirs the yogurt in the tank 1, some of the yogurt can pass smoothly through the first clearance holes 5, ensuring uniformity.
[0026] In this embodiment, the second stirring structure 322 includes a second stirring plate 322a. A scraper portion 322b is installed at one end of the second stirring plate 322a, and a second connecting portion 322c adapted to the first connecting portion 321b is integrally formed at the other end of the second stirring plate 322a. The first stirring plate 321a and the second stirring plate 322a are hinged together through the first connecting portion 321b and the second connecting portion 322c. A torsion spring 6 is provided between the first connecting portion 321b and the second connecting portion 322c. The first connecting portion 321b and the second connecting portion 322c are connected by a pin. The torsion spring 6 is sleeved on the pin, and both ends of the torsion spring 6 are respectively engaged with the first connecting portion 321b and the second connecting portion 322c.
[0027] It should be added that the scraper part 322b is made of flexible material. The scraper part 322b is used to scrape the yogurt on the inner wall of the can 1 on the one hand, and to ensure the uniformity of the yogurt at the edge of the inner wall of the can 1 on the other hand.
[0028] In this embodiment, the second stirring plate 322a is provided with a plurality of second clearance holes 7. When the second stirring plate 322a stirs the yogurt in the tank 1, some of the yogurt can pass smoothly through the second clearance holes 7, ensuring the uniformity of the yogurt at the edge of the inner wall of the tank 1.
[0029] In this embodiment, a first limiting part 8 is installed on the first connecting part 321b, and a second limiting part 9 is installed on the second connecting part 322c. Due to the action of the first limiting part 8 and the second limiting part 9, the second stirring plate 322a can only rotate in one direction along the first stirring plate 321a.
[0030] When this device is in use, if forward stirring of yogurt or yogurt raw materials is required, the convex surface of the stirring blade 32 with its bent structure faces forward. When encountering significant resistance, the second stirring structure 322 rotates along the first stirring structure 321, creating a buffer. When reverse stirring of yogurt or yogurt raw materials is required, due to the limiting structure, the stirring blade 32 always abuts against the inner wall of the tank 1, resulting in greater resistance to reverse rotation, making it suitable for powerful stirring.
[0031] When the device is in use, the stirring blades 32 rotate in the opposite direction when the tank 1 needs to be cleaned. Due to the effect of the limiting structure, the scraper part 322b on the second stirring plate 322a always abuts against the inner wall of the tank 1, thereby ensuring that the yogurt on the inner wall of the tank 1 is cleaned.
[0032] 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 stirring jar for yogurt preparation, characterized in that: The device includes a tank (1) and a stirring device installed on the tank (1). The stirring device includes a stirring motor (2) installed on the tank (1) and a stirring mechanism (3) disposed inside the tank (1). The stirring mechanism (3) includes a mounting shaft (31) and a plurality of stirring blades (32) with bent structures evenly distributed on the mounting shaft (31). The stirring blades (32) include a first stirring structure (321) and a second stirring structure (322), wherein the first stirring structure (321) is hinged to the second stirring structure (322), and the second stirring structure (322) abuts against the inner wall of the tank (1).
2. The mixing tank for yogurt preparation according to claim 1, characterized in that: The tank (1) has an inlet (4) and an outlet (4) at the bottom.
3. The mixing tank for yogurt preparation according to claim 1, characterized in that: The first stirring structure (321) includes a first stirring plate (321a), one end of which is mounted on the mounting shaft (31), and the other end of which is provided with a first connecting part (321b).
4. The stirring tank for yogurt preparation according to claim 3, characterized in that: The first stirring plate (321a) is provided with a plurality of first clearance holes (5).
5. The mixing tank for yogurt preparation according to claim 3, characterized in that: The second stirring structure (322) includes a second stirring plate (322a), a scraper portion (322b) is installed at one end of the second stirring plate (322a), and a second connecting portion (322c) adapted to the first connecting portion (321b) is provided at the other end of the second stirring plate (322a). The first stirring plate (321a) and the second stirring plate (322a) are hinged together through the first connecting portion (321b) and the second connecting portion (322c). A torsion spring (6) is provided between the first connecting portion (321b) and the second connecting portion (322c).
6. The mixing tank for yogurt preparation according to claim 5, characterized in that: The second stirring plate (322a) is provided with a plurality of second clearance holes (7).
7. The mixing tank for yogurt preparation according to claim 5, characterized in that: A first limiting part (8) is installed on the first connecting part (321b), and a second limiting part (9) is installed on the second connecting part (322c).