Sealing structure and food processing device

Abstract

The utility model relates to a sealing structure and a food processing device, and the sealing structure is used for fixing a rotatable supporting shaft on a bottom plate and enabling the supporting shaft to be in a sealing state relative to a first surface of the bottom plate; the sealing structure comprises a shaft sleeve, a first sealing piece and a second sealing piece. The supporting shaft is installed on the bottom plate through the shaft sleeve and extends out of the first face of the bottom plate. The outer ring of the shaft sleeve and the first face of the bottom plate are sealed through a first sealing piece. The space between the inner ring of the shaft sleeve and one side of the first surface of the bottom plate is sealed through a second sealing piece; and the driving structure of the supporting shaft is mounted in a space on one side of the second surface of the bottom plate. The sealing structure mounted on the bottom plate can isolate liquid such as water or oil from structures such as a driving device, so that the space on one side of the first surface of the bottom plate can be thoroughly washed with water, and all structures in the space on the side can be ensured to be clean.

Description

Technical Field

[0001] This utility model relates to the field of electrical appliances, specifically to a sealing structure and a food processing device. Background Technology

[0002] Containers with rotating mechanisms used for food processing, such as air fryers and air ovens, tend to accumulate grease and grime on their rotating parts, such as the fan blades, and heating elements, over time. This grease is difficult to clean and can cause unpleasant odors. Reheating these components can also produce carcinogens, posing a health risk. While common design approaches include making the fan blades and heating elements invisible to the naked eye, this doesn't fundamentally solve the problem of easy accumulating dirt and difficulty in cleaning.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] To address the problem of difficulty in cleaning food processing devices in the prior art, this utility model discloses a sealing structure and a food processing device.

[0005] The technical solution adopted in this embodiment of the utility model is as follows:

[0006] A sealing structure for fixing a rotatable support shaft to a base plate and sealing the support shaft relative to a first surface of the base plate;

[0007] The sealing structure includes a bushing, a first seal, and a second seal; the support shaft is mounted on the base plate via the bushing and extends out of the first surface of the base plate;

[0008] The outer ring of the bushing is sealed to the first surface of the base plate by a first seal; the inner ring of the bushing is sealed to the space on one side of the first surface of the base plate by a second seal; the drive structure of the support shaft is installed in the space on one side of the second surface of the base plate.

[0009] A further technical solution is that the bushing includes a first sealing ring extending from the outer wall of the bushing; the first sealing element is installed between the first sealing ring and the first surface of the base plate.

[0010] A further technical solution is that the first sealing ring of the bushing overlaps the first surface of the base plate; the fixed end of the bushing protrudes from the second surface of the base plate; and the first fastener fixes the bushing to the base plate from one side of the second surface of the base plate.

[0011] A further technical solution is to extend a second sealing ring from the inner wall of the bushing; to install a rotating bearing between the bushing and the support shaft; and to install the second seal between the rotating bearing and the second sealing ring to seal the space of the rotating bearing relative to the first surface of the base plate.

[0012] A further technical solution is that a temperature sensor is fixed on the base plate; the temperature measuring end of the temperature sensor is placed in the space on one side of the first surface of the base plate; the fixed end of the temperature sensor extends out of the second surface of the base plate and is fixed by a second fastener; a third sealing element is installed between the temperature measuring end and the first surface of the base plate.

[0013] A further technical solution is that a fixing clip is fixed on the base plate; the fixing clip includes a fixing plate and a receiving cavity connected to the fixing plate; a fuse is placed in the receiving cavity and attached to the second side of the base plate;

[0014] The fixed end of the temperature sensor extends out from the second surface of the base plate and passes through the fixed plate before being fixed by a second fastener.

[0015] A further technical solution is that a fixing clip is fixed on the base plate; the fixing clip includes a fixing plate and a receiving cavity connected to the fixing plate; a fuse is placed in the receiving cavity and attached to the second side of the base plate;

[0016] The fastener includes a fixing head placed on a first side of the base plate and a fixing end extending from a second side of the base plate; the fixing end passes through the fixing plate and is fixed by a second fastener; a third sealing element is installed between the fixing head and the base plate.

[0017] A food processing apparatus equipped with a sealing structure as described in any of the preceding claims, the food processing apparatus comprising a main unit; the main unit comprising a working space and a drive space separated by the base plate; a fan blade fixed to the support shaft is further provided in the working space; the drive space is used to install the drive structure of the main unit.

[0018] A further technical solution is that a heating element is also provided around the fan blade; and a protective cover is provided on the fan blade and the heating element.

[0019] A further technical solution is that the food processing device also includes a food basket placed in the working space of the host and an oil receiving tray placed at the lower end of the food basket.

[0020] The beneficial effects of this utility model embodiment are as follows:

[0021] The embodiments disclosed in this utility model can be used for containers equipped with rotating devices that need to process food. The sealing structure installed on the bottom plate can isolate liquids such as water or oil from the drive device and control device, allowing the space on one side of the first surface of the bottom plate to be thoroughly rinsed with water, ensuring the cleanliness of all structures in this space.

[0022] This food processing device features a sealed structure. The rotatable mechanism moves within the working space, where food is processed or heated. All components within the working space can be directly rinsed with water without affecting the drive mechanism, especially electrical components, or the rotational function of the support shaft. This allows users to thoroughly clean food residue, reducing odors and health hazards associated with repeated heating of grease.

[0023] Due to its excellent sealing properties, when a heating element is installed in the workspace, it can not only heat the water for food processing but also heat the water when cleaning containers, allowing for a more thorough removal of grease. Simultaneously, the fan blades rotate during cleaning, increasing water flow and enhancing the cleaning effect. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the installation position of the sealing structure in an embodiment of this utility model.

[0025] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle.

[0026] Figure 3 yes Figure 1 Enlarged schematic diagram of part B.

[0027] Figure 4 This is a schematic diagram of the food processing device in an embodiment of this utility model.

[0028] Figure 5 yes Figure 4 The structural breakdown diagram.

[0029] In the diagram: 1. Support shaft; 2. First fastener; 3. Base plate; 4. Second fastener; 5. Fixing clamp; 6. Fuse; 7. Third seal; 8. Temperature sensor; 9. Heating element; 10. Fan blade; 11. Protective cover; 12. First seal; 13. Second seal; 14. Bushing; 15. Third fastener; 16. Main unit; 17. Oil tray; 18. Food basket. Detailed Implementation

[0030] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0032] Figure 1 This is a schematic diagram of the installation position of the sealing structure in an embodiment of this utility model. Figure 2 yes Figure 1 An enlarged diagram of part A in the diagram. (See attached image.) Figure 1 , Figure 2 As shown, this embodiment of the present invention discloses a sealing structure for fixing a rotatable support shaft 1 to a base plate 3, thereby creating a seal between the support shaft 1 and the first surface of the base plate 3. This embodiment is generally applicable to containers equipped with rotating devices that require frequent cleaning. The sealing structure isolates liquids such as water or oil from structures such as drive devices and control devices. For example, air fryers or air ovens require rotatable blowers to deliver hot air to the food basket, and because they are used for food processing, they need frequent cleaning. This sealing structure can also be used in food processing devices such as blenders.

[0033] like Figure 2 As shown, the sealing structure includes a bushing 14, a first seal 12, and a second seal 13. The support shaft 1 is mounted to the base plate 3 via the bushing 14 and extends out of the first surface of the base plate 3. Rotating structures such as fan blades or agitators can be mounted on the bushing 14 on the first surface of the base plate 3. The first seal 12 and the second seal 13 are preferably annular sealing rings, but can also be other shapes that can fill the corresponding gaps.

[0034] Specifically, the outer ring of the bushing 14 is sealed to the first surface of the base plate 3 by a first seal 12. The bushing 14 includes a first sealing ring extending from the outer wall of the bushing 14. The first sealing ring of the bushing 14 overlaps the first surface of the base plate 3, and the first seal 12 is installed between the first sealing ring and the first surface of the base plate 3. The fixed end of the bushing 14 protrudes from the second surface of the base plate 3. A first fastener 2 secures the bushing 14 from one side of the second surface of the base plate 3. Specifically, the first fastener 2 is a nut, which is screwed onto the thread of the fixed end of the bushing 14 from one side of the second surface of the base plate 3.

[0035] The space between the inner ring of the bushing 14 and the first side of the base plate 3 is sealed by a second seal 13. The drive structure of the support shaft 1 is installed in the space on the second side of the base plate 3. Specifically, a second sealing ring extends from the inner wall of the bushing 14. A rotary bearing is installed between the bushing 14 and the support shaft 1. The second seal 13 is installed between the rotary bearing and the second sealing ring, sealing the space of the rotary bearing relative to the first side of the base plate 3.

[0036] Because of the first seal 12, the bushing 14 and the first surface of the base plate 3 are sealed. Because of the second seal 13, the space between the support shaft 1 and the bushing 14 on one side of the first surface of the base plate 3 is also sealed, and the space of the rotating bearing relative to the first surface of the base plate 3 is also sealed. Therefore, even if there is liquid in the space on one side of the first surface of the base plate 3, it will not leak into the space enclosed by the first seal 12, the second seal 13, and the second surface of the base plate 3. This protects the drive structure and associated control devices and other water-sensitive, electrically conductive components without affecting the rotation of the support shaft 1.

[0037] Figure 3 yes Figure 1 An enlarged schematic diagram of part B. (See diagram below.) Figure 3 As shown, a temperature sensor 8 and a fuse 6 are fixed on the base plate 3. Of course, in some embodiments, only one of the two can be fixed, which can also achieve the most basic temperature measurement function.

[0038] In this embodiment, the temperature measuring end of the temperature sensor 8 is placed in the space on one side of the first surface of the base plate 3. The fixed end of the temperature sensor 8 extends out of the second surface of the base plate 3 and is fixed by a second fastener 4. Specifically, the second fastener 4 is a nut, which is screwed onto the thread of the fixed end of the temperature sensor 8 from the second surface of the base plate 3. A third sealing element 7 is installed between the temperature measuring end and the first surface of the base plate 3. With this structure, the installation position of the temperature sensor 8 is also effectively sealed, preventing water or oil from leaking to the second surface of the base plate 3.

[0039] Furthermore, a fixing clip 5 is fixed to the base plate 3. The fixing clip 5 includes a fixing plate and a receiving cavity connected to the fixing plate. The receiving cavity is preferably integrally connected to the fixing plate, and is a container with its opening facing the second surface of the base plate 3. The fuse 6 is placed in the receiving cavity and is held tightly against the second surface of the base plate 3 by the supporting force of the receiving cavity. When the temperature at the base plate 3 is too high, the fuse 6 will cut off the circuit to ensure safety. The fixing plate is fixed to the second surface of the base plate 3 by the fixing end of the temperature sensor 8. That is, the fixing end of the temperature sensor 8 extends out of the second surface of the base plate 3, passes through the fixing plate, and is then tightened by the second fastener 4. This fixing method allows only one fixing hole to be opened on the base plate 3, while fixing both the temperature sensor 8 and the fuse 6, reducing the possibility of leakage.

[0040] Of course, in specific implementations, the fuse 6 and the temperature sensor 8 can also be fixed in different positions, which will also achieve a good sealing effect. In this case, a fastener with a similar structure to the temperature sensor 8 can be used to fix the fuse 6 separately. At this time, the fixing plate of the fixing clip 5 is fixed to the second side of the base plate 3 by the fastener. The fastener includes a fixing head placed on the first side of the base plate 3 and a fixing end extending from the second side of the base plate 3. The fixing end extends from the second side of the base plate 3 and passes through the fixing plate before being tightened by the second fastener 4. A third sealing element 7 is installed between the fixing head and the base plate 3.

[0041] Figure 4 This is a schematic diagram of the food processing device in an embodiment of this utility model. Figure 5 yes Figure 4 A structural breakdown diagram. (See diagram below.) Figure 4 , Figure 5 As shown, this embodiment of the invention also proposes a food processing device equipped with the sealing structure described above. The food processing device includes a main unit 16. The main unit 16 includes a working space and a drive space separated by a base plate 3. Combined with... Figures 1-4 Above the base plate 3 is the space on one side of the first surface of the base plate 3, which is the working space. The rotatable device rotates in the working space, and food is placed in the working space for processing and heating. Below the base plate 3 is the space on one side of the second surface of the base plate 3, which is the drive space. The drive device and other control devices and electrical structures are all installed in the drive space. Due to the sealing structure in the above embodiment, all components in the working space can be directly washed with water without affecting the various live parts in the drive space, and without affecting the rotation function of the support shaft 1.

[0042] Specifically, the working space includes a fan blade 10 fixed to the support shaft 1 by a third fastener 15 and a heating element 9 surrounding the fan blade 10. The fan blade 10 blows hot air emitted by the heating element 9 upwards towards the food to heat it. A protective cover 11 covers the fan blade 10 and the heating element 9. The food processing device also includes an oil tray 17 and a food basket 18 placed in the working space of the main unit 16. The food basket 18 is used to hold the food. The oil tray 17 can collect oil that leaks out when the food is heated, minimizing oil contamination that flows onto the fan blade 10 and the heating element 9 before cleaning. The food basket 18 and the oil tray 17 can also be removed for separate cleaning.

[0043] The heating element 9 can not only heat food for processing, but also heat water during washing. Hot water can more thoroughly clean oil stains. The fan blade 10 can also rotate during washing to increase water flow, realize the automatic cleaning function, and enhance the cleaning effect.

[0044] The sealing structure can be used in both mechanical and electronic food processing devices, ensuring that all equipment and components in the drive space are not affected by water or liquid leakage.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A sealing structure, characterized in that, Used to fix a rotatable support shaft to a base plate and to seal the support shaft relative to a first surface of the base plate; The sealing structure includes a bushing, a first seal, and a second seal; the support shaft is mounted on the base plate via the bushing and extends out of the first surface of the base plate; The outer ring of the bushing is sealed to the first surface of the base plate by a first seal; the inner ring of the bushing is sealed to the space on one side of the first surface of the base plate by a second seal; the drive structure of the support shaft is installed in the space on one side of the second surface of the base plate.

2. The sealing structure according to claim 1, characterized in that, The bushing includes a first sealing ring extending from the outer wall of the bushing; the first seal is installed between the first sealing ring and a first surface of the base plate.

3. The sealing structure according to claim 2, characterized in that, The first sealing ring of the bushing overlaps the first surface of the base plate; the fixed end of the bushing protrudes from the second surface of the base plate. The first fastener secures the bushing to the base plate from one side of the second surface of the base plate.

4. The sealing structure according to claim 1, characterized in that, A second sealing ring extends from the inner wall of the bushing; a rotating bearing is installed between the bushing and the support shaft; a second seal is installed between the rotating bearing and the second sealing ring to seal the space of the rotating bearing relative to the first surface of the base plate.

5. The sealing structure according to claim 1, characterized in that, A temperature sensor is fixed on the base plate; the temperature measuring end of the temperature sensor is placed in the space on one side of the first surface of the base plate; the fixed end of the temperature sensor extends out of the second surface of the base plate and is fixed by a second fastener; a third sealing element is installed between the temperature measuring end and the first surface of the base plate.

6. The sealing structure according to claim 5, characterized in that, A fixing clip is fixed to the base plate; the fixing clip includes a fixing plate and a receiving cavity connected to the fixing plate; a fuse is placed in the receiving cavity and attached to the second surface of the base plate; The fixed end of the temperature sensor extends out from the second surface of the base plate and passes through the fixed plate before being fixed by a second fastener.

7. The sealing structure according to claim 1, characterized in that, A fixing clip is fixed to the base plate; the fixing clip includes a fixing plate and a receiving cavity connected to the fixing plate; a fuse is placed in the receiving cavity and attached to the second surface of the base plate; The fastener includes a fixing head placed on a first side of the base plate and a fixing end extending from a second side of the base plate; the fixing end passes through the fixing plate and is fixed by a second fastener; a third sealing element is installed between the fixing head and the base plate.

8. A food processing apparatus equipped with a sealing structure as described in any one of claims 1 to 7, characterized in that, The food processing device includes a main unit; the main unit includes a working space and a drive space separated by the base plate; a fan blade fixed to the support shaft is also provided in the working space; the drive space is used for the drive structure.

9. The food processing apparatus according to claim 8, characterized in that, A heating element is also provided around the fan blade; a protective cover is provided on the fan blade and the heating element.

10. The food processing apparatus according to claim 8, characterized in that, The food processing device also includes a food basket placed in the working space of the main unit and an oil receiving tray placed at the lower end of the food basket.

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