Food processor sanitary to use

Abstract

The food processor comprises a main machine and a cup body which is installed on the main machine and provided with a smashing cavity, the cup body is provided with a water inlet nozzle, the water inlet nozzle is communicated with the smashing cavity, the main machine comprises a machine shell, the machine shell is provided with an air inlet hole, and a hollow air guide cover is arranged at the position, corresponding to the air inlet hole, of the inner wall of the machine shell; one end of the air guide cover and the inner wall of the machine shell define a containing cavity, a filtering piece is arranged in the containing cavity, an air pump is arranged in the main machine, the other end of the air guide cover is connected with an air inlet of the air pump through a pipe fitting, and an air outlet of the air pump is connected with the water inlet nozzle through a pipe fitting. The air inlet structure is added, cooling of slurry, drying of the inner wall of the cup body and removal of residual water on the inner wall of the pipe fitting can be achieved through air inlet, and bacterium breeding on the inner wall of the cup body or the inner wall of the pipe fitting can be avoided; under the action of the filter part, external air is used after being filtered, so that the situation that bacteria and impurities are brought into the cup body to pollute serous fluid or the cup body needs to be cleaned for the second time can be avoided, and the use is safe and reliable.

Description

Technical Field

[0001] The utility model relates to the field of food processing machines, in particular to a hygienic food processing machine. Background Art

[0002] For the soymilk machines on the market today, for the hands-free series, the cup body is usually equipped with a water inlet structure. The water supply device feeds water into the cup body through the water inlet structure, which can realize the functions of pulping and cleaning the cup body, freeing the user's hands and providing convenience for the user. The water inlet structure of this type of product is currently only used for water intake, and has a single function. After the cup body is cleaned, it takes a long time to dry. If the inner wall of the cup body is not dry before the cup body is closed, it is easy to cause bacteria to grow in the cup body and even produce odor, causing food safety problems. In addition, the components of the water inlet structure are connected by pipes, and there is often residual water on the inner wall of the pipe. If the inside of the pipe is not dried, it is easy to breed bacteria over time, which further affects the hygiene of the product and is detrimental to the health of the user. Utility Model Content

[0003] In order to solve the problem in the prior art that the cup body cannot be dried quickly after cleaning, and the inner wall of the connecting pipeline often has residual water, which makes it easy for bacteria to grow in the cup body or the pipeline, causing food safety problems, the utility model provides a hygienic food processing machine, which optimizes the gas quality of the intake air by setting an air intake structure to achieve drying of the cup body and the inside of the pipeline, so as to improve safety of use.

[0004] The utility model discloses a hygienic food processing machine, comprising a main machine and a cup body with a grinding chamber installed on the main machine, the cup body being provided with a water inlet nozzle, the water inlet nozzle being communicated with the grinding chamber, the main machine comprising a casing, the casing being provided with an air inlet hole, a hollow air guide cover being provided on an inner wall of the casing corresponding to the air inlet hole, one end of the air guide cover being enclosed with the inner wall of the casing to form a accommodating chamber, a filter being provided in the accommodating chamber, an air pump being provided in the main machine, the other end of the air guide cover being connected to the air inlet of the air pump through a pipe fitting, and the air outlet of the air pump being connected to the water inlet nozzle through a pipe fitting.

[0005] The hygienic food processing machine of the utility model also has the following additional technical features:

[0006] The air guide cover includes a gathering portion and a connecting portion which are connected to each other. The gathering portion is radially enlarged relative to the connecting portion. The gathering portion and the inner wall of the casing are enclosed to form a accommodating cavity. The connecting portion is connected to the air inlet through a pipe.

[0007] The inner diameter of the gathering part is the same along the direction gradually approaching the connecting part; or a trumpet-shaped guide part is provided at one end of the gathering part close to the connecting part, and the gathering part is connected with the connecting part through the guide part.

[0008] There are multiple air inlet holes, and the peripheral wall of the air guide cover facing the inner wall of the casing surrounds the multiple air inlet holes.

[0009] The water inlet nozzle is arranged near the center of the main unit, the air inlet hole and the air inlet port are arranged on the left and right sides of the center of the main unit respectively, and the air inlet port and the air outlet are arranged at one end of the air pump facing the air inlet hole.

[0010] The air guide cover and the air pump are arranged horizontally relative to each other or staggered; or the air guide cover is arranged horizontally, and the air pump is arranged obliquely relative to the air guide cover.

[0011] A waterproof and breathable membrane is also arranged in the accommodating cavity.

[0012] The waterproof breathable membrane is arranged on the side of the filter element, and the waterproof breathable membrane is installed on the inner wall of the casing; or the waterproof breathable membrane is arranged on the rear side of the filter element, and the waterproof breathable membrane is installed on the inner wall of the air guide cover.

[0013] A water pump is also provided in the main unit, and either the water pump or the air pump is connected to the water inlet nozzle.

[0014] The housing is also provided with heat dissipation holes, and the air inlet holes and the heat dissipation holes are respectively arranged on the side walls at two opposite sides of the housing.

[0015] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0016] 1. The hygienic food processing machine of the present application retains the water inlet function of the water inlet nozzle and adds an air intake structure, which allows external air to flow into the crushing chamber through the air inlet hole-air guide cover-air pump-water inlet nozzle, which can achieve slurry cooling, dry the inner wall of the cup body, and remove residual water on the inner wall of the pipe, which can prevent bacteria from growing on the inner wall of the cup body or the inner wall of the pipe, enrich the performance of the food processing machine and improve the hygiene and safety of use. Furthermore, under the action of the filter, the external air is used after being filtered, which can avoid bacteria and impurities from being brought into the cup body to cause slurry contamination or the need for secondary cleaning of the cup body. It is safe and reliable to use and can ensure the health of the user.

[0017] 2. As a preferred embodiment, the air guide hood includes a gathering part and a connecting part that are connected, the gathering part radially expands relative to the connecting part, the gathering part and the inner wall of the casing enclose a accommodating cavity, and the connecting part is connected to the air inlet through a pipe fitting; thus, the air guide hood adopts a segmented structure, and the gathering part can provide a suitable accommodating space for setting a filter element. When the air flows into the connecting part after being filtered, the air flow rate can be increased due to the smaller pipe diameter of the connecting part, which is beneficial to improving the air intake efficiency.

[0018] As a preferred embodiment of the present embodiment, the inner diameter of the gathering portion is the same along the direction gradually approaching the connecting portion; thus, the gathering portion is designed to have a consistent inner diameter along the axial direction, and has a simple structure and is easy to manufacture.

[0019] Alternatively, a trumpet-shaped guide portion is provided at one end of the gathering portion close to the connecting portion, and the gathering portion is connected to the connecting portion through the guide portion; by providing the guide portion, on the one hand, it can play a role in gathering and guiding the gas after filtration to speed up the gas flow into the connecting portion, and on the other hand, it can play a role of transition, so that the airflow is gradually accelerated, thereby ensuring smooth flow of the airflow.

[0020] 3. As a preferred embodiment, there are multiple air inlet holes, and the air guide cover surrounds the multiple air inlet holes toward the peripheral wall of the inner wall of the casing; thereby, it can be ensured that the air entering from the air inlet holes is effectively filtered before being input into the crushing chamber, which can improve the air utilization rate of the intake air.

[0021] 4. As a preferred embodiment, the water inlet nozzle is arranged near the center of the main unit, the air inlet hole and the air inlet port are respectively arranged on the left and right sides of the center of the main unit, and the air inlet port and the air outlet are arranged at one end of the air pump facing the air inlet hole; thus, by optimizing the arrangement of the water inlet nozzle and the air pump, it is possible to avoid a small angle bend in the arrangement path of the hose when the air outlet and the water inlet nozzle are connected through a hose, resulting in poor air intake or even pipe blocking, thereby ensuring smooth air path.

[0022] 5. As a preferred embodiment, the air guide hood and the air pump are horizontally arranged relative to each other or staggered; that is, the air guide hood and the air pump can be reasonably arranged according to the effective space in the casing to optimize space utilization and pipeline layout to avoid pipe blocking.

[0023] Alternatively, the air guide hood is arranged horizontally, and the air pump is arranged obliquely relative to the air guide hood; when a water pump is further provided in the casing, by arranging the air pump at an angle, interference between the pipelines of the water pump and the pipelines of the air pump can be avoided in a limited space, so as to optimize the local structure in the casing.

[0024] 6. As a preferred embodiment, a waterproof breathable membrane is also provided in the accommodating cavity; therefore, when water vapor is sucked into the casing, the waterproof breathable membrane can be used to absorb the moisture, thereby preventing moisture from entering the air pump and affecting its performance, while ensuring the drying effect of the gas on the cup body and the pipe fittings.

[0025] As a preferred embodiment of the present embodiment, the waterproof breathable membrane is arranged on the front side of the filter element, and the waterproof breathable membrane is installed on the inner wall of the casing; thus, after the external air enters the casing, the moisture can be filtered out by the waterproof breathable membrane first, and then the bacteria and impurities can be filtered out by the filter element, which can improve the quality of the gas entering the cup body. The waterproof breathable membrane is installed on the inner wall of the casing for easy installation.

[0026] Alternatively, the waterproof breathable membrane is arranged on the rear side of the filter element, and the waterproof breathable membrane is installed on the inner wall of the air guide cover; thus, after the external air enters the casing, the bacteria and impurities can be filtered out by the filter element first, and then the moisture can be filtered out by the waterproof breathable membrane, which can improve the quality of the gas entering the cup body. The waterproof breathable membrane is installed on the air guide cover. When the air guide cover is removed, the waterproof breathable membrane can be conveniently replaced, which is convenient for maintenance.

[0027] 7. As a preferred embodiment, a water pump is also provided in the main unit, and the water pump and the air pump are selectively connected to the water inlet; thus, the water inlet can be used for water intake or air intake, which enriches its functions, and has a simple configuration, which is conducive to reducing costs.

[0028] 8. As a preferred embodiment, the casing is also provided with heat dissipation holes, and the air inlet holes and the heat dissipation holes are respectively arranged on the side walls of the casing on opposite sides; thereby, it can be avoided that when the heat dissipation holes and the air inlet holes are arranged on the same side, the temperature near the air inlet holes is affected by the heat at the heat dissipation holes, which causes the temperature to rise. When air enters from the air inlet holes, when there is a temperature difference between the inside and outside of the main unit, condensation water is easily formed at the air inlet holes. When the condensation water blocks the air inlet holes, it will cause the air intake to be blocked, seriously affecting the air intake efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0030] Figure 1 It is a schematic cross-sectional view of a partial structure of a food processor according to one embodiment of the present application.

[0031] Figure 2 for Figure 1 A magnified schematic diagram of the structure in the middle.

[0032] Figure 3 This is a schematic structural diagram of an air guide hood according to an embodiment of the present application.

[0033] Figure 4 for Figure 3 A cross-sectional view of the air hood.

[0034] Reference numerals:

[0035] 10. Casing; 11. Air inlet; 12. Air guide cover; 13. Filter; 14. Air pump; 121. Gathering part; 122. Connecting part; 123. Guide part; 141. Air inlet; 142. Air outlet; 15. Water pump; 16. Heat dissipation hole. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0037] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0038] It should be noted that many specific details are set forth in the following description to facilitate 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 protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0039] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through a transition structure, but are only connected to form a whole through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0043] like Figures 1 to 4 As shown, the present application provides a hygienic food processing machine, comprising a main machine and a cup body with a grinding chamber installed on the main machine, the cup body being provided with a water inlet nozzle, the water inlet nozzle being communicated with the grinding chamber, the main machine comprising a casing 10, the casing 10 being provided with an air inlet hole 11, a hollow air guide cover 12 being provided on the inner wall of the casing 10 corresponding to the air inlet hole 11, one end of the air guide cover 12 being enclosed with the inner wall of the casing 10 to form a accommodating chamber, a filter element 13 being provided in the accommodating chamber, an air pump 14 being provided in the main machine, the other end of the air guide cover 12 being connected to an air inlet 141 of the air pump 14 by a pipe fitting, and an air outlet 142 of the air pump 14 being connected to the water inlet nozzle by a pipe fitting.

[0044] Specifically, the present application can inlet air into the cup body through the air inlet hole 11-air guide cover 12-air pump 14-water inlet nozzle, which can achieve the following effects: (1) quickly drying the cup body after cleaning; (2) cooling the slurry; (3) drying the inner wall of the connecting pipe between the cup body water inlet nozzle and the crushing chamber to remove residual water, etc., which can improve the performance of the product. Using the same water inlet nozzle for water or air intake can achieve multiple uses, which is conducive to simplifying the structural configuration and reducing costs.

[0045] Furthermore, the air guide cover 12 not only facilitates the connection between the air inlet 11 and the air pump 14, but also provides an installation position for the filter 13. The filter 13 is used to filter the air entering the cup body, which can ensure that the gas entering the cup body is clean and hygienic, and improve the safety and reliability of use. The filter 13 can be made of simple filter materials such as common polyester fibers, polypropylene, etc., which can filter bacteria, dust, etc., making the gas entering the crushing chamber cleaner and more hygienic, and can avoid affecting the quality of the slurry when cooling the slurry and causing secondary pollution when drying the inner wall of the cup body. By arranging the filter 13 in the housing 10, it is avoided to configure a complex filtering device outside the machine, and the development cost is low.

[0046] The air guide cover 12 is an axially hollow structure, which may be a simple cylindrical pipe structure or may have a certain spatial configuration, which is not limited in the present application.

[0047] As a preferred embodiment of the present application, the air guide cover 12 includes a gathering portion 121 and a connecting portion 122 that are connected, the gathering portion 121 is radially expanded relative to the connecting portion 122, the gathering portion 121 and the inner wall of the casing 10 are enclosed to form a accommodating cavity, and the connecting portion 122 is connected to the air inlet 141 through a pipe.

[0048] like Figure 3 and Figure 4 As shown, the air guide cover 12 adopts a segmented structure, and the gathering part 121 can provide a suitable accommodation space for setting the filter 13. When the air flows into the connecting part 122 after filtering, the air flow rate can be increased because the pipe diameter of the connecting part 122 is small, which is beneficial to improve the air intake efficiency.

[0049] In one embodiment, the inner diameters of the gathering portion 121 are the same along the direction gradually approaching the connecting portion 122. Specifically, the gathering portion 121 is flat and the connecting portion 122 is slender. The inner diameter of the former is greater than that of the latter, and the inner diameter changes suddenly from the gathering portion 121 to the connecting portion 122. The air guide hood 12 of this embodiment includes two sections, which has a simple structure and is easy to process.

[0050] In another embodiment, a trumpet-shaped guide portion 123 is provided at one end of the gathering portion 121 close to the connecting portion 122 , and the gathering portion 121 is connected to the connecting portion 122 via the guide portion 123 .

[0051] like Figure 4As shown, the air guide cover 12 of this embodiment includes three sections, and there is a process in which the inner diameter gradually decreases from the gathering part 121 to the connecting part 122. The guide part 123 can gather and guide the filtered gas on the one hand to accelerate the gas flow into the connecting part 122, and on the other hand, it can play a transitional role, so that the airflow is gradually accelerated to ensure smooth airflow. The filter 13 can be arranged on the front side of the guide part 123, so that the gas can flow into the connecting part 122 through the guide part 123 only after filtering.

[0052] It is understandable that the air guide cover 12 is not limited to the above two-stage or three-stage structure, and can also be other multi-stage structures. For example, in one example, the air guide cover 12 includes a gathering portion 121 and a connecting portion 122. The inner diameter of the gathering portion 121 gradually expands along the direction of airflow, and the inner diameter of the connecting portion 122 gradually decreases. Alternatively, in another example, the air guide cover 12 includes a gathering portion 121, a transition portion, and a connecting portion 122. The inner diameter of the gathering portion 121 gradually expands along the direction of airflow, and the inner diameter of the connecting portion 122 gradually decreases. The transition portion has a consistent inner diameter for connecting the gathering portion 121 and the connecting portion 122.

[0053] As a preferred embodiment of the present application, a plurality of air inlet holes 11 are provided, and the peripheral wall of the air guide cover 12 facing the inner wall of the casing 10 surrounds the plurality of air inlet holes 11 .

[0054] like Figure 2 As shown, the multiple air intake holes 11 are all within the coverage of the air guide cover 12, which can improve the air utilization rate of the intake and improve the intake efficiency.

[0055] As a preferred embodiment of the present application, the water inlet nozzle is arranged near the center of the main unit, the air inlet hole 11 and the air inlet port 141 are respectively arranged on the left and right sides of the center of the main unit, and the air inlet port 141 and the air outlet port 142 are arranged at one end of the air pump 14 facing the air inlet hole 11.

[0056] By optimizing the arrangement of the water inlet nozzle and the air pump 14, it is possible to avoid that when the air outlet 142 is connected to the water inlet nozzle through a hose, a small angle bend in the arrangement path of the hose causes poor air intake or even pipe blocking, thereby ensuring smooth air path.

[0057] Specifically, in one embodiment, the air inlet 11 is provided on the left side wall of the housing 10, and the air pump 14 is provided close to the right side wall of the housing 10. In another embodiment, the air inlet 11 is provided on the right side wall of the housing 10, and the air pump 14 is provided close to the left side wall of the housing 10. Furthermore, the air guide 12 and the air inlet 141, the air outlet 142 and the water inlet nozzle are connected through hoses. By optimizing the arrangement of components, it can be ensured that the hoses between the components are arranged smoothly, so that there will be no unsmooth air intake due to a small angle (such as an acute angle) bend in a certain place of the hose on the gas travel path, which can effectively ensure the reliability and efficiency of air intake.

[0058] Further, regarding the arrangement angle of the air guide cover 12 and the air pump 14, the air guide cover 12 and the air pump 14 can be arranged horizontally relative to each other or staggered, or, as shown in FIG. Figure 1 As shown, the air guide cover 12 is arranged horizontally, and the air pump 14 is arranged obliquely relative to the air guide cover 12. Figure 1 As shown, when a water pump 15 is provided in the main machine, by arranging the air pump 14 at an angle, interference between the pipelines of the water pump 15 and the pipelines of the air pump 14 can be avoided in a limited space, so as to optimize the local structure in the casing 10.

[0059] As a preferred embodiment of the present application, a waterproof breathable membrane is also provided in the accommodating cavity. Therefore, when water vapor is sucked into the housing 10, the waterproof breathable membrane can be used to absorb the moisture, thereby preventing the moisture from entering the air pump 14 and affecting its performance, and at the same time ensuring the drying effect of the gas on the cup body and the pipe.

[0060] Regarding the location of the waterproof breathable membrane, it can be arranged on the front side or the rear side of the filter element 13, which is not required by the present application. For example, in one embodiment, the waterproof breathable membrane is arranged on the front side of the filter element 13, and the waterproof breathable membrane is installed on the inner wall of the housing 10. In this embodiment, after the external air enters the housing 10, it can first filter out moisture through the waterproof breathable membrane, and then filter out bacteria and impurities through the filter element 13, which can improve the quality of the gas entering the cup body. The waterproof breathable membrane is installed on the inner wall of the housing 10 for easy installation. In another embodiment, the waterproof breathable membrane is arranged on the rear side of the filter element 13, and the waterproof breathable membrane is installed on the inner wall of the air guide cover 12. In this embodiment, after the external air enters the housing 10, it can first filter out bacteria and impurities through the filter element 13, and then filter out moisture through the waterproof breathable membrane, which can improve the quality of the gas entering the cup body. The waterproof breathable membrane is installed on the air guide cover 12. When the air guide cover 12 is removed, the waterproof breathable membrane can be easily replaced for easy maintenance. When the waterproof breathable membrane is disposed on the inner wall of the air guide cover 12 , the waterproof breathable membrane can be placed horizontally along the radial direction of the air guide cover 12 , or the waterproof breathable membrane can be attached to the inner wall of the air guide cover 12 .

[0061] As a preferred embodiment of the present application, a water pump 15 is further provided in the main unit, and either the water pump 15 or the air pump 14 is selectively connected to the water inlet.

[0062] Specifically, the food processor also includes a water tank, and a water pump 15 can pump water from the water tank to supply water to the cup body. Therefore, when it is necessary to make pulp or clean the cup body, the water inlet nozzle is connected to the water supply structure for use, and when it is necessary to cool the slurry or dry the cup body, the water inlet nozzle is connected to the air supply structure for use. The water intake and the air intake do not interfere with each other, which increases the use of the water inlet nozzle and can improve the comprehensive performance of the product.

[0063] As a preferred embodiment of the present application, the housing 10 is further provided with heat dissipation holes 16 , and the air inlet holes 11 and the heat dissipation holes 16 are respectively arranged on the side walls at opposite sides of the housing 10 .

[0064] like Figure 1 As shown, the air inlet 11 and the heat dissipation hole 16 are arranged opposite to each other, and the heat dissipation hole 16 is used to discharge the heat in the housing 10 when the machine is working, so as to cool down the motor and other components. The heat dissipation hole 16 is arranged away from the air inlet 11, which can prevent the heat at the heat dissipation hole 16 from causing the temperature near the air inlet 11 to rise. When air enters from the air inlet 11, when there is a temperature difference between the inside and outside of the main machine, condensation water is easily formed at the air inlet 11. When the condensation water blocks the air inlet 11, it will cause the air intake to be not smooth, thereby affecting the air intake efficiency, that is, ensuring the reliability of the air intake.

[0065] The technical solution protected by the present utility model is not limited to the above-mentioned embodiments. It should be pointed out that the combination of the technical solution of any embodiment with the technical solution of one or more other embodiments is within the protection scope of the present utility model. Although the present utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to it based on the present utility model. Therefore, these modifications or improvements made without departing from the spirit of the present utility model are within the scope of protection claimed by the present utility model.

Claims

1. A hygienic food processing machine, comprising a main machine and a cup body with a crushing chamber installed on the main machine, wherein the cup body is provided with a water inlet nozzle, the water inlet nozzle is connected to the crushing chamber, and the characteristics are: The main unit includes a casing, the casing is provided with an air inlet, a hollow air guide cover is provided on the inner wall of the casing corresponding to the air inlet, one end of the air guide cover and the inner wall of the casing are enclosed to form a accommodating cavity, a filter is provided in the accommodating cavity, an air pump is provided in the main unit, the other end of the air guide cover is connected to the air inlet of the air pump through a pipe, and the air outlet of the air pump is connected to the water inlet nozzle through a pipe.

2. A hygienic food processor according to claim 1, characterized in that: The air guide cover includes a gathering portion and a connecting portion which are connected to each other. The gathering portion is radially enlarged relative to the connecting portion. The gathering portion and the inner wall of the casing are enclosed to form a accommodating cavity. The connecting portion is connected to the air inlet through a pipe.

3. A hygienic food processor according to claim 2, characterized in that: The inner diameters of the convergent portion are the same along a direction gradually approaching the connecting portion; or A trumpet-shaped guide portion is provided at one end of the gathering portion close to the connecting portion, and the gathering portion is communicated with the connecting portion through the guide portion.

4. A hygienic food processor according to claim 1, characterized in that: There are multiple air inlet holes, and the peripheral wall of the air guide cover facing the inner wall of the casing surrounds the multiple air inlet holes.

5. A hygienic food processor according to claim 1, characterized in that: The water inlet nozzle is arranged near the center of the main unit, the air inlet hole and the air inlet port are arranged on the left and right sides of the center of the main unit respectively, and the air inlet port and the air outlet are arranged at one end of the air pump facing the air inlet hole.

6. A hygienic food processor according to claim 1, characterized in that: The air guide cover and the air pump are arranged horizontally relative to each other or staggered; or The air guide cover is arranged transversely, and the air pump is arranged obliquely relative to the air guide cover.

7. A hygienic food processing machine according to claim 1, characterized in that: A waterproof and breathable membrane is also arranged in the accommodating cavity.

8. A hygienic food processing machine according to claim 7, characterized in that: The waterproof breathable membrane is arranged on the front side of the filter element, and the waterproof breathable membrane is installed on the inner wall of the housing; or The waterproof and breathable membrane is arranged on the rear side of the filter element, and the waterproof and breathable membrane is installed on the inner wall of the air guide cover.

9. A hygienic food processing machine according to claim 1, characterized in that: A water pump is also provided in the main unit, and either the water pump or the air pump is connected to the water inlet nozzle.

10. A hygienic food processor according to claim 1, characterized in that: The housing is also provided with heat dissipation holes, and the air inlet holes and the heat dissipation holes are respectively arranged on the side walls at two opposite sides of the housing.

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