Food processor

Abstract

The utility model belongs to the technical field of kitchen appliances, and discloses a food processor which comprises a smashing cup and a motor, the motor is connected with a transmission shaft, and the transmission shaft penetrates through the bottom wall of the smashing cup, extends into the smashing cup and is connected with a first smashing cutter. The filter screen cover is located above the first smashing cutter, the second smashing cutter is installed in the filter screen cover, an auxiliary transmission part in transmission connection with the transmission shaft is arranged above the first smashing cutter, and the second smashing cutter is provided with a matching part in transmission connection with the auxiliary transmission part; the filter screen cover drives the second crushing cutter to be detachable relative to the auxiliary transmission part. The food processor provided by the utility model can realize the preparation function of traditional soybean milk, tofu pudding or tofu, has various functions, and realizes simple and convenient operation of household tofu pudding. The beancurd jelly forming machine is simple, convenient and rapid to operate, and the beancurd jelly forming effect and the beancurd jelly forming taste can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, specifically relating to a food processing machine. Background Technology

[0002] As people's living standards improve, the demand for soy products is increasing. Simple soy milk can no longer meet user needs, and the demand for tofu pudding and tofu is growing. Traditional tofu pudding preparation mainly includes: soaking soybeans, grinding, filtering to remove residue, boiling the soy milk, adding coagulant, and coagulation. Among these, adding coagulant is a crucial step in successful tofu pudding preparation, requiring controlled temperature and the addition of an appropriate amount of coagulant. Most existing tofu pudding preparation methods are inconvenient to operate and cannot be used at home.

[0003] To enable users to enjoy fresh tofu pudding anytime, anywhere, the applicant previously filed a patent application with publication number CN218165028U, which discloses a multifunctional food processing machine. The machine includes a body, a pulping chamber located within the body, a drain valve with a drain spout, a control device, a receiving cup, and a lid. The lid has a pulp inlet corresponding to the drain spout. The lid rests on the receiving cup, positioning a magnet in a first position to trigger a first detection device to send a signal. The food processing machine also includes a filter screen, which rests on the receiving cup, with the lid covering the filter screen. This positions the magnet in a second position to trigger a second detection device to send a signal. This solution not only prepares soy milk but also, by installing a filter screen, filters the discharged pulp to prepare coffee, tofu pudding, etc., achieving intelligent detection and program control.

[0004] However, the aforementioned food processors with tofu pudding preparation functions are high-end household food processors—that is, food processors that do not require hand washing. They suffer from drawbacks such as large size, large kitchen space requirements, and high manufacturing costs. Furthermore, existing ordinary household food processors, such as soy milk makers, do not have the function of making tofu pudding. Therefore, ordinary food processors are not very attractive to people who want to make tofu pudding.

[0005] Although existing food processors use high-speed grinding blades to pulverize soybeans when making soy milk, allowing most people to drink it without filtering, a slight grainy texture may still be noticeable to sensitive individuals. Therefore, these food processors are generally favored by users who prefer a rich soy flavor and a slightly grainy texture in their soy milk. However, users sensitive to the grainy texture still filter the soy milk separately after preparation, which is obviously cumbersome and complicated, and pouring it into the container also makes it difficult to keep the soy milk warm.

[0006] In addition, when users prepare tofu using the existing food processing machine, they need to complete the crushing and boiling of the soy in the soy-making cup, perform additional filtration as the soy is discharged from the drain to the receiving cup, and then coagulate it with brine in the receiving cup. This results in the following problems: 1. Due to splashing and overflow during the drainage process, the filtration operation requires extra user supervision, and the filtration time is long, wasting processing time and making the operation inconvenient; 2. Changing containers for boiling soy milk and adding coagulant complicates the operation and cleaning, poses a risk of contamination, and may even affect the taste of the tofu; 3. Adding coagulant in the receiving cup is not conducive to the even distribution of the coagulant, and the additional stirring complicates the operation; 4. The temperature of the receiving cup is greatly affected by external factors and cannot be precisely controlled, making it impossible to guarantee the appropriate temperature during the coagulant addition process, resulting in coagulation that is too fast or too slow, and the prepared tofu has a poor taste, such as tofu with many or large pores, a rough and unsmooth texture, watery tofu, poor coagulation effect, and poor tofu quality. If heat preservation and shaping of tofu is to be achieved, an insulation structure for heat preservation of the receiving cup needs to be set on the base of the food processing machine, which complicates the overall structure, further increases the overall cost of the machine, and reduces users' willingness to purchase. Utility Model Content

[0007] This utility model provides a food processing machine, based on a common household food processing machine, which can provide two beverage making modes for users to choose from, and can make beverages better while reducing user operation and making it more worry-free for users.

[0008] The technical solution adopted in this utility model is as follows:

[0009] This utility model provides a food processing machine, including a grinding cup and a motor located below the grinding cup. The motor is connected to a drive shaft, which extends through the bottom wall of the grinding cup into the grinding cup and is connected to a first grinding blade. The machine also includes a filter screen above the first grinding blade and a second grinding blade installed inside the filter screen. An auxiliary transmission part is provided above the first grinding blade and is connected to the drive shaft. The second grinding blade has a mating part that is connected to the auxiliary transmission part, so that the drive shaft drives the second grinding blade to rotate relative to the filter screen. The filter screen and the second grinding blade are detachable together relative to the auxiliary transmission part.

[0010] This food processor provides a first grinding blade and a second grinding blade that can be removed along with the filter screen. Without the filter screen, the first grinding blade enables coarse grinding for beverage preparation, producing traditional soy milk and juice, satisfying users' desire for a textured, rich-tasting soy milk. With the filter screen installed, the second grinding blade further grinds the material within the screen, allowing the user to remove the screen for filtration. This enables fine grinding for beverage preparation, producing finely ground and filtered soy milk, tofu pudding, or other drinks requiring filtration. This enhances the versatility of the food processor and simplifies the preparation of tofu pudding using a standard home food processor. When preparing fine soy milk, filtration is simple: just open the grinding cup lid and remove the filter screen. The soy pulp separates with the filter screen, leaving the soy milk in the grinding cup. This makes filtration very easy and caters to different users' preferences for texture. In the process of making tofu pudding, a food processor is used to complete the entire process of soaking soybeans, grinding, boiling, filtering, adding coagulant, and shaping. The entire process is completed within the grinding cup, eliminating the need to change containers. This simplifies operation and cleaning for users, making it more user-friendly. It also reduces the cost of the food processor, increasing user willingness to purchase and boosting product sales. During filtering, users simply open the lid of the grinding cup and remove the filter screen. The soybean residue separates with the filter screen, leaving the liquid inside the grinding cup. This simple operation reduces the risk of tofu pudding contamination and ensures quality. The elimination of lengthy filtering times makes the process more convenient and accelerates preparation. During the coagulant adding process, because the filtered liquid remains in the grinding cup, the temperature can be directly controlled, allowing for precise control of the coagulation temperature. This meets the temperature requirements for coagulation, minimizing the impact of external temperatures on the coagulation process. This results in better tofu pudding shaping, improved texture, and a higher quality product.

[0011] In addition, the first grinding blade can not only be used for coarse grinding and pulping, but also for synchronously rotating and stirring while the second grinding blade is rotating during the preparation of tofu pudding, thereby avoiding scorching at the bottom and improving the uniformity of grinding. During the preparation of tofu pudding, the rotation and stirring of the first grinding blade can be controlled during the addition of coagulant to achieve full mixing of coagulant and slurry, thereby improving the uniform texture of tofu pudding.

[0012] In summary, the food processor provided by this utility model expands upon the basic household food processor by introducing a filterable preparation mode. This allows for both coarse grinding and fine grinding / filtration modes, meeting a variety of user needs. Furthermore, in the fine grinding / filtration mode, beverage preparation is completed within the grinding cup, simplifying user operation, resulting in high-quality beverages, while also significantly reducing the cost of the food processor and increasing user willingness to purchase.

[0013] In a preferred embodiment, the pulverizing cup includes a cup body and a cup lid, and the top of the filter screen is detachably connected to the cup lid so as to be removed along with the cup lid.

[0014] By detachably connecting the filter screen to the lid, and allowing it to be removed along with the lid, the user can complete the filtration process simultaneously with opening the lid, achieving a one-step filtration solution and simplifying operation. Furthermore, the lid's ability to remove the filter screen prevents burns and contamination, avoiding the risk of users getting their hands dirty. Additionally, the detachable connection between the filter screen and the lid allows the lid to limit the rotation of the filter screen during the second grinding blade's rotation, preventing it from rotating or moving. This stable structure and reliable installation ensure smooth preparation of the tofu pudding.

[0015] More preferably, the cup lid is provided with a magnet, and the top of the filter screen is provided with an attractive surface that attracts the magnet; or, the top of the side wall of the filter screen is provided with a buckle, and the cup lid is provided with a buckle that engages with the buckle.

[0016] The cup lid features a magnet, and the filter screen has an attractive surface that reliably engages with the magnet, enabling reliable installation and easy removal of the filter screen. The structure is simple, and since the filter screen is often made of a metal that attracts magnets, there's no need to add an additional magnet to the filter screen, further simplifying the design. Utilizing snap-fit ​​and latching mechanisms, a reliable connection and easy removal of the filter screen from the cup lid are still achieved, making operation simple.

[0017] In a preferred embodiment, the grinding cup includes a first grinding chamber and a second grinding chamber located above the first grinding chamber. The first grinding chamber is concave relative to the second grinding chamber and connected by a step. The first grinding blade is located in the first grinding chamber. The filter screen is supported by the step. A magnet is installed on the outer side of the step, and the magnet is attracted to the bottom wall of the filter screen.

[0018] By contracting the first grinding chamber and positioning the first grinding blade within it, the first grinding blade can concentrate on grinding the material within the first grinding chamber, thereby increasing the probability of collision between the material and the first grinding blade, improving the fineness of the grinding and the grinding efficiency. The step between the first and second grinding chambers supports the filter screen, ensuring stable installation of the filter screen during the tofu pudding preparation process, thus preventing rotation or movement of the filter screen. Magnets are installed on the outer side of the step, and the attraction between the magnets and the bottom wall of the filter screen further ensures a reliable fit between the filter screen and the grinding cup, resulting in a stable structure and successful tofu pudding preparation.

[0019] In a preferred embodiment, the bottom of the filter screen is provided with a downwardly protruding support portion, the support portion is arranged around the first pulverizing blade to separate the filter screen and the first pulverizing blade, the filter screen is mounted on the bottom wall of the pulverizing cup through the support portion, and a magnet is installed on the outer bottom wall of the pulverizing cup, the magnet being attracted to the support portion.

[0020] By providing a downward-protruding support at the bottom of the filter screen, on the one hand, during the tofu preparation process, a magnet is installed on the outer bottom wall of the grinding cup, and the magnet attracts the support, achieving reliable installation of the filter screen and the bottom wall of the grinding cup, resulting in a stable structure; on the other hand, after the filter screen is removed, the user can place it stably, avoiding the phenomenon of unstable placement of the filter screen caused by residue on the bottom wall of the filter screen, and after cleaning, the support ensures good air permeability of the bottom wall of the filter screen, allowing it to dry thoroughly, preventing bacterial growth, and ensuring clean and hygienic use.

[0021] More preferably, the grinding cup includes a cup body and a cup lid, and the filter screen is held and fixed by the cup lid; or, the inner side wall of the grinding cup is provided with a baffle rib, and the side wall of the filter screen is provided with a groove that engages with the baffle rib.

[0022] By using the cup lid to hold the filter screen, a magnet, or a flow-deflecting rib, a reliable connection between the filter screen and the grinding cup can be achieved regardless of the limiting method, thus facilitating the successful preparation of tofu pudding.

[0023] In a preferred embodiment, the pulverizing cup includes a cup body and a cup lid, the cup lid having a feeding port.

[0024] By setting a feeding port on the cup, users can easily add materials during the grinding process without frequently opening the lid, ensuring safe operation. For example, when making tofu pudding, the cup lid can be closed before adding materials to the filter screen through the feeding port, such as adding soybeans, water, eggs, or seasonings in batches. Alternatively, users can first place the materials into the filter screen and then install it inside the grinding cup. After removing the filter screen and closing the cup lid, the first grinding blade can rotate and stir simultaneously as the user adds coagulant through the feeding port, ensuring safe operation, improving mixing uniformity, enhancing the tofu pudding's coagulation effect, and improving its texture.

[0025] In a preferred embodiment, the bottom wall of the filter screen is provided with a mounting hole, and an annular groove is provided on one of the outer periphery of the mating part and the mounting hole, and an annular rib is provided on the other. The annular rib is riveted to the annular groove and slidably engaged.

[0026] By using a combination of annular grooves and annular ribs, the second crushing blade is directly riveted to the bottom wall of the filter screen via the mating part, and can rotate relative to the filter screen. It does not require complicated installation procedures, the installation method is simple, the structure is simple, and the structure can be reliably and durable even when in a liquid environment for a long time, saving maintenance trouble.

[0027] More preferably, the mating part is a self-lubricating connector integrally injection molded with the crushing blade; or, the mating part is a wear-resistant part detachably connected to the second crushing blade; or, the inner wall of the annular groove is provided with balls or protrusions that slide in cooperation with the annular rib.

[0028] By setting the mating part as a self-lubricating connector that is injection molded integrally with the crushing blade, a self-lubricating layer is generated when the ring rib and the ring groove slide together, thereby reducing dynamic friction; setting ball bearings or protrusions also reduces the dynamic friction between the crushing blade and the filter screen, making the sliding fit between the ring rib and the ring groove smoother, and making the rotation of the second crushing blade smoother.

[0029] In a preferred embodiment, the auxiliary transmission part is integrally formed on the upper end of the transmission shaft; or, the auxiliary transmission part is integrally formed on the upper end of the first crushing blade.

[0030] The auxiliary transmission unit is integrally formed on the transmission shaft, making the transmission more direct. Furthermore, the second crushing blade has a high degree of concentricity with the transmission shaft, resulting in stable rotation and low noise.

[0031] The auxiliary transmission unit is integrally formed on the upper end of the first crushing blade, which can shorten the length of the transmission shaft. By using the rotation of the first crushing blade to drive the rotation of the second crushing blade, the crushing efficiency can be improved.

[0032] In a preferred embodiment, the mating part is a hollow column, and the auxiliary transmission part passes through the hollow column and engages with the hollow column to prevent rotation.

[0033] The mating part adopts a hollow column. After being assembled with the auxiliary transmission part, the mating height between the auxiliary transmission part and the mating part is the entire height of the hollow column. This maximizes the utilization of the mating part, increases the connection strength, and avoids making the mating part too large and raising the crushing center of gravity. At the same time, it can also ensure the effective mating height between the drive shaft and the mating part, avoid the second crushing blade from swaying, and improve the connection stability between the second crushing blade and the drive shaft.

[0034] In a preferred embodiment, the mating part is a solid column, one of the auxiliary transmission part and the solid column is provided with a countersunk hole, and the other part is inserted into the countersunk hole to engage with the countersunk hole to prevent rotation.

[0035] By setting the mating part as a solid column, preferably with a countersunk hole at the bottom of the solid column and the top of the auxiliary transmission part inserted into the countersunk hole, a column-hole fit is achieved. The countersunk hole, located within the solid column, can be disassembled and cleaned along with the pulverizing blade, making cleaning convenient, preventing residue buildup, and ensuring hygienic use. Alternatively, a countersunk hole can be set at the top of the auxiliary transmission part, with the bottom of the solid column inserted into the countersunk hole. This facilitates alignment during filter screen installation, providing visual alignment, making alignment easy and installation convenient.

[0036] In a preferred embodiment, the bottom wall of the filter screen is provided with a mounting hole, a bearing is disposed within the mounting hole, and the mating part is fitted onto the bearing. More preferably, the bearing includes an inner ring and an outer ring, the inner wall of the mounting hole is provided with a limiting groove, the outer ring is fitted into the limiting groove, and the mating part is fitted onto the inner ring and has an interference fit with the inner ring.

[0037] By incorporating a bearing, wear caused by dynamic friction between the second pulverizing blade and the filter screen can be reduced, extending service life and ensuring structural reliability. A limiting groove is provided in the mounting hole, allowing the bearing to be properly secured to the filter screen via its outer ring. Furthermore, the interference fit between the mating part and the inner ring ensures a stable connection between the second pulverizing blade, the bearing, and the filter screen, enhancing structural stability.

[0038] In a preferred embodiment, the drive shaft is integrally connected to the motor shaft;

[0039] Alternatively, the drive shaft and the motor shaft are separately configured, with an upper connector at the bottom of the drive shaft and a lower connector at the top of the motor shaft, and the upper connector and the lower connector are coupled together.

[0040] By integrating the drive shaft and the motor shaft, with the motor fixedly mounted on the bottom wall of the grinding cup, this design is used in traditional integrated soymilk makers and features a simple structure. Alternatively, by separating the drive shaft and the motor shaft and connecting them via an upper and lower connector, the grinding cup and the main unit housing the motor can be detachably installed. This design is suitable for traditional blenders, making it easier for users to clean the grinding cup and offering greater flexibility in use. Attached Figure Description

[0041] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0042] Figure 1 This is a structural diagram of the food processing machine in one usage state in Embodiment 1 of this utility model;

[0043] Figure 2This is a structural diagram of the food processing machine in another usage state in Embodiment 1 of this utility model;

[0044] Figure 3 for Figure 2 Enlarged diagram of section A in the middle;

[0045] Figure 4 This is a schematic diagram of the cooperation between the second crushing blade and the filter screen in Embodiment 1 of this utility model;

[0046] Figure 5 This is a schematic diagram of the food processing machine in Embodiment 2 of this utility model;

[0047] Figure 6 This is a schematic diagram of the food processing machine in Embodiment 4 of this utility model;

[0048] Figure 7 This is a schematic diagram of the cooperation between the second crushing blade and the filter screen in Embodiment 4 of this utility model.

[0049] List of components and reference numerals: 10, grinding cup; 101, first grinding chamber; 102, second grinding chamber; 103, step; 11, cup body; 12, cup lid; 121, feeding port; 13, heating element; 20, motor; 30, drive shaft; 301, auxiliary transmission part; 40, filter screen; 401, flange; 51, annular groove; 52, annular rib; 50, first grinding blade; 60, second grinding blade; 61, mating part; 62, countersunk hole; 70, bearing; 71, inner ring; 72, outer ring; 80, magnet. Detailed Implementation

[0050] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0051] Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0052] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0053] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] This utility model provides a food processing machine, such as Figure 1-4 As shown, the device includes a grinding cup 10 and a motor 20 located below the grinding cup 10. The motor 20 is connected to a drive shaft 30, which extends through the bottom wall of the grinding cup 10 into the grinding cup 10 and is connected to a first grinding blade 50. The device also includes a filter screen 40 located above the first grinding blade 50 and a second grinding blade 60 installed inside the filter screen 40. An auxiliary transmission part 301 connected to the drive shaft 30 is provided above the first grinding blade 50. The second grinding blade 60 is provided with a mating part 61 connected to the auxiliary transmission part 301, so that the drive shaft 30 drives the second grinding blade 60 to rotate relative to the filter screen 40. The filter screen 40 and the second grinding blade 60 are detachable together relative to the auxiliary transmission part 301.

[0056] Preferably, the food processing machine includes a heating element 13 for heating the grinding cup 10. Of course, the heating element 13 of this utility model includes, but is not limited to, a heating tube fixed to the outer wall of the grinding cup 10 and a heating mesh wrapped around the outer wall of the grinding cup 10.

[0057] The food processing machine provided by this utility model, by setting a first grinding blade 50 and a second grinding blade 60 that can be removed together with the filter screen 40, utilizes the first grinding blade 50 to perform coarse grinding when the filter screen 40 is not installed, realizing the functions of traditional soy milk, juice, etc., as described above. Figure 1 As shown; after the filter screen 40 is installed, the second pulverizing blade 60 pulverizes the material inside the filter screen 40, and the user can remove the filter screen 40 to achieve filtration, performing concentrated and fine pulverization to achieve the function of making tofu or soy pudding. Figure 2 As shown, this enhances the functionality of the food processor, simplifying the preparation of homemade tofu pudding. The entire process—soaking soybeans, grinding, boiling, filtering, coagulating, and shaping—is completed within the grinding cup 10, eliminating the need to change containers and simplifying operation and cleaning. For filtering, simply open the lid 12 of the grinding cup 10 and remove the filter screen 40. The soybean residue separates with the filter screen 40, leaving the soy milk within the grinding cup 10. This simple operation reduces the risk of contamination and ensures the quality of the tofu pudding. The elimination of lengthy filtering times makes the process easier and faster. During coagulation, the filtered liquid remains in the grinding cup 10, allowing for direct temperature control and precise control of the coagulation temperature. This ensures the coagulation process is kept warm and less affected by external temperatures, improving the tofu pudding's shaping and texture.

[0058] In addition, the first crushing blade 50 can not only be used for coarse crushing and pulping, but also for simultaneous rotation and stirring during the preparation of tofu pudding. This prevents the tofu from sticking to the bottom and improves the uniformity of grinding. During the preparation of tofu pudding, the first crushing blade 50 can be controlled to rotate and stir during the addition of coagulant to achieve full mixing of coagulant and slurry, thereby improving the uniform texture of tofu pudding.

[0059] This invention does not limit the form of the food processing machine, for example... Figure 1 , 2 As shown, the food processing machine is a traditional integrated soymilk maker. The motor 20 is fixedly installed on the bottom wall of the grinding cup 10, and the transmission shaft 30 is integrally connected to the rotating shaft of the motor 20.

[0060] In another embodiment, the food processing machine is a high-speed blender, including a main unit and a grinding cup 10. The motor 20 is installed in the main unit, the grinding cup 10 is detachable from the main unit, the drive shaft 30 is separately installed from the rotating shaft of the motor 20, an upper connector is installed at the bottom end of the drive shaft 30, and a lower connector is installed at the top end of the rotating shaft of the motor 20. The upper connector and the lower connector are coupled.

[0061] By integrally connecting the drive shaft 30 and the rotating shaft of the motor 20, with the motor 20 fixedly mounted on the bottom wall of the grinding cup 10, this design is suitable for traditional integrated soymilk makers and features a simple structure. Alternatively, by separating the drive shaft 30 and the rotating shaft of the motor 20 and connecting them via an upper and lower connector, a detachable installation can be achieved between the grinding cup 10 and the main unit housing the motor 20. This design is suitable for traditional blenders, making cleaning more convenient and offering greater flexibility in use.

[0062] The preferred embodiment of this invention is that the mating part 61 and the second crushing blade 60 are integrally formed, including the mating part 61 and the second crushing blade 60 being integrally formed from the same material, the mating part 61 and the second crushing blade 60 being injection molded from different materials, or the mating part 61 and the second crushing blade 60 being welded together. The specific structure of the mating part 61 will be explained later with reference to specific implementation examples.

[0063] In a preferred embodiment of the present invention, the auxiliary transmission part 301 is integrally formed on the upper end of the transmission shaft 30; or, the auxiliary transmission part 301 is integrally formed on the upper end of the first crushing blade 50; or, the auxiliary transmission part 301, the transmission shaft 30, and the first crushing blade 50 are integrally formed.

[0064] The auxiliary transmission unit 301 is integrally formed on the transmission shaft 30, making the transmission more direct. The second crushing blade 60 and the transmission shaft 30 have high concentricity, resulting in stable rotation and low noise. The auxiliary transmission unit 301 is integrally formed on the upper end of the first crushing blade 50, which can shorten the length of the transmission shaft 30. The rotation of the first crushing blade 50 drives the rotation of the second crushing blade 60, thereby improving the crushing efficiency.

[0065] Furthermore, this utility model does not limit the positioning method of the filter screen 40 and the pulverizing cup 10 or the second pulverizing blade 60, for example:

[0066] Implementation Example 1, such as Figure 1-4 As shown, the pulverizing cup 10 includes a cup body 11 and a cup lid 12. The top of the filter screen 40 is detachably connected to the cup lid 12 so that it can be removed along with the cup lid 12.

[0067] By detachably connecting the filter screen 40 to the cup lid 12 and removing it along with the lid 12, the user can complete the filtration process simultaneously with opening the lid, achieving one-step filtration and simplifying operation. Simultaneously, the removal of the filter screen 40 via the cup lid 12 serves to prevent burns and contamination, avoiding situations where the filter screen 40 might scald the user or soil their hands. Furthermore, the detachable connection between the filter screen 40 and the cup lid 12 allows the cup lid 12 to limit the rotation of the filter screen 40 during the rotation of the second grinding blade 60, preventing the filter screen 40 from rotating or moving. This ensures structural stability, reliable installation, and smooth preparation of the tofu pudding.

[0068] like Figure 2, 3 As shown, in this embodiment, the cup lid 12 is provided with a magnet 80, and the top of the filter screen 40 is provided with an attractive surface that attracts the magnet 80. Specifically, the top of the filter screen 40 is provided with an outwardly folded flange 401, which forms an attractive surface that attracts the magnet 80.

[0069] Of course, in other implementation examples, the top of the side wall of the filter screen 40 is provided with a buckle, and the cup lid 12 is provided with a snap-fit ​​position that engages with the buckle. For example, the cup lid 12 is provided with a downwardly extending annular wall, the side wall of the filter screen 40 is fitted with the annular wall, and the snap-fit ​​position is provided on the annular wall.

[0070] The cup lid 12 is equipped with a magnet 80, and the filter screen 40 has an attractive surface that reliably engages with the magnet 80, enabling reliable installation and flexible removal of the filter screen 40. The structure is simple, and since the filter screen 40 is often made of the same metal that attracts the magnet 80, there is no need to add an additional magnet 80 to the filter screen 40, further simplifying the structure. With the help of snap-fit ​​and latching mechanisms, a reliable connection and flexible removal of the filter screen 40 to the cup lid 12 can still be achieved, making operation easy.

[0071] like Figure 1 , 2 As shown, preferably, the crushing cup 10 includes a cup body 11 and a cup lid 12. The cup lid 12 has a feeding port 121, which is located above the top opening of the filter screen 40.

[0072] By setting the feeding port 121 in the cup, users can easily add materials during the crushing process without frequently opening the lid, ensuring operational safety. For example, during the preparation of tofu pudding, ingredients can be added to the filter screen 40 after the cup lid 12 is closed, such as adding soybeans, water, eggs, or seasonings in batches. After removing the filter screen 40 and closing the cup lid 12, the first crushing blade 50 can rotate and stir simultaneously as the user adds coagulant through the feeding port 121, ensuring safe operation, improving mixing uniformity, enhancing the coagulation effect of the tofu pudding, and improving its texture. The above-described cup lid feeding port structure is also applicable to other implementation examples.

[0073] like Figure 4 As shown, in this embodiment, the preferred connection method between the second pulverizer 60 and the filter screen 40 is that the bottom wall of the filter screen 40 is provided with a mounting hole, a bearing 70 is provided in the mounting hole, and the mating part 61 passes through the bearing 70. More preferably, the bearing 70 includes an inner ring 71 and an outer ring 72, the inner wall of the mounting hole is provided with a limiting groove, the outer ring 72 is embedded in the limiting groove, and the mating part 61 passes through the inner ring 71 and is interference-fitted with the inner ring 71.

[0074] By incorporating bearing 70, wear caused by dynamic friction between the second crushing blade 60 and the filter screen 40 can be reduced, extending service life and ensuring structural reliability. By providing a limiting groove in the mounting hole, the bearing 70 is fitted into the limiting groove via the outer ring 72, ensuring good fixation between the bearing 70 and the filter screen 40. Furthermore, the interference fit between the mating part 61 and the inner ring 71 provides a stable connection between the second crushing blade 60, the bearing 70, and the filter screen 40, enhancing structural stability.

[0075] Preferably, the bearing 70 is a food-grade waterproof bearing 70.

[0076] like Figure 4 As shown, the mating part 61 is a solid column. One of the auxiliary transmission part 301 and the solid column is provided with a countersunk hole 62, and the other part is inserted into the countersunk hole 62 to prevent rotation. Specifically, the countersunk hole 62 is provided at the bottom end of the mating part 61, and the auxiliary transmission part 301 is inserted into the countersunk hole.

[0077] By setting the mating part 61 as a solid column, preferably, a countersunk hole 62 is provided at the bottom end of the solid column, and the top end of the auxiliary transmission part 301 is inserted into the countersunk hole 62 to achieve a column-hole fit. Since the countersunk hole 62 is located on the solid column, it can be disassembled and cleaned along with the pulverizing blade, making cleaning convenient, preventing residue buildup, and ensuring hygiene. Alternatively, a countersunk hole 62 is provided at the top end of the auxiliary transmission part 301, and the bottom end of the solid column is inserted into the countersunk hole 62. This facilitates alignment during the installation of the filter screen cover 40, enabling visual alignment, easy alignment, and convenient installation.

[0078] Of course, this embodiment is not limited to the connection method and mating structure of the second crusher 60 and the filter screen 40 described above.

[0079] Implementation Example 2, such as Figure 5 As shown, the difference between this embodiment and embodiment 1 is the positioning method of the filter screen and the pulverizing cup.

[0080] In this embodiment, the grinding cup 10 includes a first grinding chamber 101 and a second grinding chamber 102. The first grinding chamber 101 is inwardly contracted relative to the second grinding chamber 102 and is connected by a step 103. The first grinding blade 50 is located in the first grinding chamber 101, and the filter screen 40 is supported by the step 103.

[0081] By contracting the first grinding chamber 101 and positioning the first grinding blade 50 within it, the first grinding blade 50 can concentrate on grinding materials within the first grinding chamber 101, thereby increasing the probability of collision between the materials and the first grinding blade 50, improving the fineness of grinding and grinding efficiency. The step between the first grinding chamber 101 and the second grinding chamber 102 supports the filter screen 40, ensuring stable installation of the filter screen 40 during the tofu preparation process. This prevents the filter screen 40 from rotating or moving, ensuring reliable cooperation between the filter screen 40 and the grinding cup 10, resulting in a stable structure and successful tofu preparation.

[0082] More preferably, such as Figure 4 As shown, the pulverizing cup 10 includes a cup body 11 and a cup lid 12, and the filter screen 40 is pressed and fixed by the cup lid 12.

[0083] Alternatively, a magnet may be installed on the outer bottom wall of the grinding cup 10, and the magnet may be attracted to the bottom wall of the filter screen cover; or, a baffle rib may be provided on the inner side wall of the grinding cup 10, and a slot may be provided on the side wall of the filter screen cover 40 to engage with the baffle rib.

[0084] Implementation Example 3 differs from Implementation Example 1 in the way the filter screen and the pulverizing cup are positioned.

[0085] The bottom of the filter screen 40 is provided with a downward protruding support part, which is arranged around the first crushing blade 50. The filter screen 40 is installed on the bottom wall of the crushing cup 10 through the support part.

[0086] More preferably, the grinding cup 10 includes a cup body 11 and a cup lid 12, and the filter screen 40 is pressed and fixed by the cup lid 12; or, a magnet is installed on the outer bottom wall of the grinding cup 10, and the magnet attracts the filter screen 40; or, the inner side wall of the grinding cup 10 is provided with a baffle rib, and the side wall of the filter screen 40 is provided with a slot that engages with the baffle rib.

[0087] By providing a downward-protruding support at the bottom of the filter screen 40, on the one hand, reliable installation of the filter screen 40 and the bottom wall of the grinding cup 10 is achieved during the preparation of tofu pudding, ensuring structural stability; on the other hand, after the filter screen 40 is removed, the user can place it stably, avoiding the phenomenon of unstable placement of the filter screen 40 caused by residue on the bottom wall of the filter screen 40, and after cleaning, the support ensures good air permeability of the bottom wall of the filter screen 40, allowing it to dry thoroughly, preventing bacterial growth, and ensuring clean and hygienic use.

[0088] With the help of the cup lid 12, magnet 80, or baffle ribs, a reliable connection between the filter screen 40 and the crushing cup 10 can be achieved regardless of the limiting method, which is conducive to the successful preparation of tofu pudding.

[0089] Implementation Example 4, such as Figure 6 ,7 As shown, the difference between this embodiment and embodiment 1 is the installation method of the second crusher 60 and the filter screen 40.

[0090] The bottom wall of the filter screen cover 40 is provided with mounting holes. An annular groove 51 is provided on one of the outer periphery of the mating part 61 and the mounting hole, and an annular rib 52 is provided on the other. The annular rib 52 is riveted to and slidably fitted with the annular groove 51. Specifically, as shown... Figure 7 As shown, an annular groove 51 is provided on the outer periphery of the mating part 61, and an annular rib 52 is formed on the bottom wall of the filter screen cover 40.

[0091] By using the combination of the annular groove 51 and the annular rib 52, the second crushing blade 60 is directly riveted to the bottom wall of the filter screen cover 40 by means of the mating part 61, and can rotate relative to the filter screen cover 40. There is no need for complicated installation procedures. The installation method is simple and the structure is simple. The structure can be reliable and durable even when in a liquid environment for a long time, saving maintenance trouble.

[0092] More preferably, the mating part 61 is a self-lubricating connector that is integrally molded with the pulverizing blade; for example, the connector is a food-grade connector containing polytetrafluoroethylene; or, the inner wall of the annular groove 51 is provided with balls or protrusions that slide in cooperation with the annular rib 52.

[0093] Alternatively, the mating part 61 may be a wear-resistant part that is detachably connected to the second crushing blade 60; or, the inner wall of the annular groove 51 may be provided with balls or protrusions that slide in cooperation with the annular rib 52.

[0094] By setting the mating part 61 as a self-lubricating connector integrally with the crushing blade through injection molding, a self-lubricating layer is generated when the ring rib 52 and the ring groove 51 slide together, thereby reducing dynamic friction; setting balls or protrusions also reduces dynamic friction between the crushing blade and the filter screen 40, making the sliding fit between the ring rib 52 and the ring groove 51 smoother, and making the rotation of the second crushing blade 60 smoother.

[0095] In addition, such as Figure 6 , 7 As shown, in this embodiment, the mating part 61 is a hollow column, and the auxiliary transmission part 301 passes through the hollow column and is anti-rotationally mated with the hollow column.

[0096] Specifically, the cross-section of the auxiliary transmission part 301 is irregular, and the inner hole of the hollow column is an irregular hole. For example, a flat part is provided on the outer wall of the transmission shaft 30 or the auxiliary transmission part 301.

[0097] The mating part 61 is a hollow column. After being assembled with the auxiliary transmission part 301, the mating height between the auxiliary transmission part 301 and the mating part 61 is the entire height of the hollow column. This maximizes the use of the mating part 61, increases the connection strength, and avoids making the mating part 61 too large and raising the crushing center of gravity. At the same time, it can also ensure the effective mating height between the transmission shaft 30 and the mating part 61, avoid the second crushing blade 60 from swaying, and improve the connection stability between the second crushing blade 60 and the transmission shaft 30.

[0098] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0099] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0100] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A food processing machine, comprising a grinding cup and a motor located below the grinding cup, the motor being connected to a drive shaft, the drive shaft extending through the bottom wall of the grinding cup into the grinding cup and connected to a first grinding blade, characterized in that, It also includes a filter screen above the first pulverizer and a second pulverizer installed inside the filter screen. An auxiliary transmission part is provided above the first pulverizer and is connected to the transmission shaft. The second pulverizer is provided with a mating part that is connected to the auxiliary transmission part, so that the transmission shaft drives the second pulverizer to rotate relative to the filter screen. The filter screen and the second pulverizer are detachable together relative to the auxiliary transmission part.

2. The food processing machine according to claim 1, characterized in that, The pulverizing cup includes a cup body and a cup lid, and the top of the filter screen is detachably connected to the cup lid so as to be removed along with the cup lid.

3. A food processing machine according to claim 2, characterized in that, The cup lid is equipped with a magnet, and the top of the filter screen is provided with an attractive surface that attracts the magnet. Alternatively, a buckle may be provided at the top of the side wall of the filter screen, and the cup lid may have a snap-fit ​​that engages with the buckle.

4. A food processing machine according to claim 1, characterized in that, The grinding cup includes a first grinding chamber and a second grinding chamber located above the first grinding chamber. The first grinding chamber is inwardly contracted relative to the second grinding chamber and connected by a step. The first grinding blade is located in the first grinding chamber. The filter screen is supported by the step. A magnet is installed on the outer side of the step, and the magnet is attracted to the bottom wall of the filter screen. Alternatively, the bottom of the filter screen is provided with a downwardly protruding support portion, which is arranged around the first pulverizing blade to separate the filter screen and the first pulverizing blade. The filter screen is mounted on the bottom wall of the pulverizing cup through the support portion, and a magnet is installed on the outer bottom wall of the pulverizing cup, which is attracted to the support portion.

5. A food processing machine according to claim 1, characterized in that, The crushing cup includes a cup body and a cup lid, and the cup lid has a feeding port.

6. A food processing machine according to claim 1, characterized in that, The bottom wall of the filter screen is provided with a mounting hole. The outer periphery of the mating part is provided with an annular groove on one of the mounting holes and an annular rib on the other. The annular rib is riveted to the annular groove and is slidably fitted.

7. A food processing machine according to claim 6, characterized in that, The mating part is a self-lubricating connector that is injection molded integrally with the crushing blade; Alternatively, the mating part is a wear-resistant component that is detachably connected to the second crushing blade; Alternatively, the inner wall of the annular groove may be provided with balls or protrusions that slide in cooperation with the annular rib.

8. A food processing machine according to claim 1, characterized in that, The auxiliary transmission unit is integrally formed on the upper end of the transmission shaft; Alternatively, the auxiliary transmission part may be integrally formed on the upper end of the first crushing blade; Alternatively, the mating part is a hollow column, and the auxiliary transmission part passes through the hollow column and engages with the hollow column to prevent rotation; Alternatively, the mating part is a solid column, and one of the auxiliary transmission part and the solid column is provided with a countersunk hole, and the other of the two is inserted into the countersunk hole to prevent rotation.

9. A food processing machine according to claim 1, characterized in that, The bottom wall of the filter screen is provided with a mounting hole, a bearing is provided in the mounting hole, the mating part is installed in the bearing, the bearing includes an inner ring and an outer ring, the inner wall of the mounting hole is provided with a limiting groove, the outer ring is embedded in the limiting groove, and the mating part is installed in the inner ring and has an interference fit with the inner ring.

10. A food processing machine according to claim 1, characterized in that, The drive shaft is integrally connected to the motor shaft; Alternatively, the drive shaft and the motor shaft are separately configured, with an upper connector at the bottom of the drive shaft and a lower connector at the top of the motor shaft, and the upper connector and the lower connector are coupled together.

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