Food processor reliable in sealing

Abstract

The reliable-sealing food processor comprises an axially-through cup body, a heating disc arranged at an opening in the bottom of the cup body and a cup base arranged below the cup body, the heating disc and the cup base are fixed through screws and clamp the cup body up and down, an outer sealing ring is arranged between the bottom face of the cup body and the cup base, and the outer sealing ring is connected with the cup base. The bottom face of the cup body is provided with a plurality of protruding parts distributed in the circumferential direction of the cup body, and the protruding parts abut against the upper surface of the outer sealing ring and are in interference fit with the upper surface of the outer sealing ring. The convex part on the bottom surface of the cup body is used for extruding the outer sealing ring, the outer sealing ring can be prevented from shifting in the assembling process by increasing the compression amount of the outer sealing ring, and the sealing reliability between the cup body and the cup base is ensured.

Description

A sealed and reliable food processing machine Technical Field

[0001] This application relates to the field of food processing machines, and more specifically to a food processing machine with reliable sealing. Background Technology

[0002] There are two existing methods for installing the cup body of a blender. One method is that the bottom of the cup body has threads that can be connected to the threads on the cup base. The other method is that the heating plate at the bottom of the cup body is fastened to the cup base with screws, and the two clamp the cup body. The first method requires the cup body to have a threaded structure, which is difficult to process. Therefore, the second method of cup body installation is more common.

[0003] In the cup clamping structure, an outer sealing ring is provided between the cup body and the cup base. During cup installation, the outer sealing ring is pre-positioned at the desired preset position between the cup body and the cup base, and then clamped during cup clamping. However, during the tightening of the cup base and heating plate, the outer sealing ring often fails to remain stably in the desired preset position and shifts. If technicians fail to notice this shift and continue installing the cup, the shifted outer sealing ring will prevent it from properly fitting the cup body and / or cup base, inevitably reducing the sealing effect between the cup body and cup base. When liquid enters the cup base from this location, it will damage the internal structure of the cup base and affect the machine's lifespan. To address this issue, those skilled in the art would provide raised ribs on the outer sealing ring. During installation, the raised ribs would be press-fitted against the bottom surface of the cup body to ensure that the outer sealing ring remains in a preset position without displacement. However, because the raised ribs are made of flexible material, they deform under external pressure and cannot provide adequate compression, easily causing some displacement of the outer sealing ring. Therefore, it is still impossible to guarantee that the outer sealing ring is in the desired preset position to achieve good sealing performance. Summary of the Invention

[0004] This application provides a food processing machine with reliable sealing, which aims to solve the technical problem that in existing cup clamping solutions, the sealing ring between the cup body and the cup base is prone to displacement during the cup body installation process, resulting in unreliable sealing.

[0005] The technical solution adopted in this application is as follows:

[0006] A reliable sealed food processing machine includes an axially extending cup body, a heating plate disposed at the bottom opening of the cup body, and a cup base disposed below the cup body. The heating plate and the cup base are fixed with screws and clamp the cup body from above and below. An outer sealing ring is provided between the bottom surface of the cup body and the cup base. The bottom surface of the cup body is provided with a plurality of protrusions distributed along the circumference of the cup body. The protrusions abut against the upper surface of the outer sealing ring in an interference fit.

[0007] In this technical solution, the convex part on the bottom surface of the cup body is used to compress the outer sealing ring. Because the convex part is made of rigid material, it does not deform when subjected to external pressure. On the one hand, this enhances the axial compression of the outer sealing ring by the cup body, increases the friction between the cup body and the outer sealing ring, improves the anti-slip effect of the outer sealing ring, and reduces the probability of the outer sealing ring shifting during cup body installation. On the other hand, when the convex part compresses the outer sealing ring, a concave-convex limit is formed between the convex part and the outer sealing ring, which increases the radial limiting effect on the outer sealing ring. Compared with the structure of a smooth surface on the bottom surface of the cup body, the outer sealing ring is less likely to slide and shift under the limiting effect. This ensures the sealing effect between the cup body and the cup base during use after cup body assembly, prevents liquid from entering the cup base from this position and damaging the electronic structure inside the cup base, thereby extending the service life of the machine.

[0008] Optionally, the lower surface of the outer sealing ring is provided with at least one first sealing rib, the first sealing rib abutting against the cup base with an interference fit, and the projection of the first sealing rib on the bottom surface of the cup body at least partially falls on the rib.

[0009] In this technical solution, by setting the first sealing rib, the interference effect between the outer sealing ring and the cup base can be enhanced, and the anti-slip effect of the outer sealing ring can be improved. Since at least part of the first sealing rib is distributed axially corresponding to the convex part, the force of the convex part squeezing the outer sealing ring can be directly applied to the first sealing rib, which is conducive to increasing the compression amount, reducing the probability of the outer sealing ring shifting, and improving the sealing reliability between the cup body and the cup base.

[0010] Optionally, the thickness of the protrusion along the axial direction is d, and the thickness of the outer sealing ring along the axial direction is D, where d < 0.3D.

[0011] In this technical solution, by reasonably setting the thickness of the protrusion along the axial direction, while ensuring the compression of the protrusion on the outer sealing ring, it is possible to avoid the protrusion being too thick, causing a gap between the bottom surface of the cup body and the outer sealing ring, which would affect the sealing effect. That is, when d exceeds 0.3D, it will reduce the contact area between the cup body and the outer sealing ring, which is not conducive to improving the sealing effect.

[0012] Optionally, the cup base has a recess, which is correspondingly provided with the protrusion.

[0013] In this technical solution, by setting the concave portion, on the one hand, it can provide compression space for the outer sealing ring, preventing the lower surface of the outer sealing ring from being unable to fully fit with the cup base due to compression by the convex portion, thus forming a gap that affects the sealing effect. On the other hand, the compression of the outer sealing ring by the convex portion makes the upper and lower surfaces of the outer sealing ring cooperate with the convex and concave portions respectively, which can enhance the limiting effect of the outer sealing ring, prevent the outer sealing ring from shifting, and thus ensure the sealing reliability. At the same time, it is beneficial to limit the cup body radially, preventing the cup body from moving during assembly and use, thereby improving the reliability of the cup body.

[0014] Optionally, the projection of the protrusion onto the cup base falls entirely within the recess.

[0015] In this technical solution, the recess has a large volume, which is beneficial for the outer sealing ring, which is compressed by the convex part, to be completely pressed into the recess at the corresponding position. This avoids the situation where the recess is too small, causing the compressed area to abut against the edge of the recess, resulting in a gap between the outer sealing ring and the other planes of the cup base, which would affect the sealing effect. At the same time, the recess fully accommodating the compressed part helps to strengthen the radial limiting effect of the outer sealing ring, thereby improving the assembly effect of the outer sealing ring and ensuring sealing reliability.

[0016] Optionally, the inner wall of the cup body is provided with a second protrusion, the protrusion and the second protrusion are smoothly connected, and an inner sealing ring is provided between the cup body and the heating plate, with the second protrusion and the inner sealing ring abutting in an interference fit.

[0017] In this technical solution, the convex part and the second convex part can simultaneously enhance the compression effect of the outer sealing ring and the inner sealing ring, which can improve the sealing effect between the cup body and the heating plate and between the cup body and the cup base, thereby improving the overall sealing performance of the cup body assembly.

[0018] Optionally, the minimum distance between the second protrusion and the outer wall of the heating plate is greater than 1.5 mm.

[0019] In this technical solution, by limiting the distance between the second protrusion and the heating plate, it is possible to prevent the cup body from being too close to the heating plate, which would cause the temperature at that location to be too high during the working state of the cup body. This would create a large temperature difference with the upper part of the cup body, increasing the risk of stress cracking of the cup body and helping to extend the service life of the cup body.

[0020] Optionally, the inner sealing ring is provided with at least one second sealing rib on the side facing the outer wall of the heating plate, and the projection of the second sealing rib on the inner wall of the cup body at least partially falls on the second protrusion.

[0021] In this technical solution, by setting a second sealing rib and distributing the second sealing rib at least partially corresponding to the second protrusion, the force exerted by the second protrusion on the inner sealing ring can be directly applied to the second sealing rib, which is beneficial to increase the compression amount and improve the sealing effect between the cup body and the heating plate.

[0022] Optionally, the heating plate is tilted to have a highest tilted area and a lowest tilted area, and at least a portion of the protrusions are disposed on one side of the cup body corresponding to the lowest tilted area.

[0023] In this technical solution, when the heating plate is tilted, the slurry turbulence is more intense and the slurry impact force is greater near the lowest tilted area. In order to improve the sealing performance of the cup body on this side, at least a portion of the protrusions are set on the side of the cup body corresponding to the lowest tilted area. By improving the compression effect of the outer sealing ring through the protrusions, it is beneficial to strengthen the compactness between the cup body and the cup base. Under the premise that the heating plate and the cup base clamp the cup body, it is beneficial to strengthen the compactness between the cup body and the heating plate, improve the clamping effect of the cup body, thereby improving the sealing performance between the cup body and the heating plate, ensuring that the liquid near the lowest tilted area will not leak, and ensuring the reliability of the seal.

[0024] Optionally, an inner sealing ring is provided between the cup body and the heating plate, and the inner wall of the cup body near the bottom opening is provided with an inwardly extending transition portion, the protrusion is provided corresponding to the transition portion, and the inner sealing ring is provided between the transition portion and the heating plate.

[0025] In this technical solution, by aligning the convex portion with the transition portion, the reaction force of the convex portion squeezing the outer sealing ring and clamping the cup body and cup base can be better applied to the inner sealing ring of the transition portion, thereby enhancing the clamping effect of the inner sealing ring. This can improve the sealing performance of the inner side of the cup body and prevent the liquid in the cup body from leaking out from the mating position between the cup body and the heating plate, thus affecting the reliability of the cup body. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0027] Figure 1 is a schematic diagram of the cup assembly according to one embodiment of this application.

[0028] Figure 2 is a partial schematic diagram of a cup body with a protrusion according to the first embodiment of this application.

[0029] Figure 3 is a partial schematic diagram of the assembly structure between the cup body and the cup base in Figure 2.

[0030] Figure 4 is a schematic diagram of the structure of the outer sealing ring according to one embodiment of this application.

[0031] Figure 5 is a partial schematic diagram of a cup base according to one embodiment of this application.

[0032] Figure 6 is a schematic diagram of the assembly between the cup base, the outer sealing ring, and the cup body in Figure 5.

[0033] Figure 7 is a partial schematic diagram of a cup body with a protrusion according to the second embodiment of this application.

[0034] Figure 8 is a partial schematic diagram of the assembly structure between the cup body, cup base, and heating plate in Figure 7.

[0035] Figure 9 is a schematic diagram showing the arrangement between the second protrusion in Figure 7 and the heating plate.

[0036] Figure 10 is a schematic diagram of the cup assembly structure with the heating plate tilted according to one embodiment of this application.

[0037] Figure 11 is an enlarged schematic diagram of the structure at point A in Figure 10.

[0038] Figure label:

[0039] 10. Cup body; 101. Transition section; 11. Heating plate; 111. Highest inclined area; 112. Lowest inclined area; 12. Cup base; 121. Support surface; 122. Extension surface; 123. Flanged edge; 124. Recess; 13. Outer sealing ring; 131. Radial sealing part; 132. First sealing section; 133. Second sealing section; 134. First sealing rib; 14. Protrusion; 15. Inner sealing ring; 16. Second protrusion; 17. Crusher; 18. Motor; 19. Cup body shell. Detailed Implementation

[0040] To more clearly illustrate the overall concept of this application, a detailed explanation will be provided below with reference to the accompanying drawings.

[0041] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0042] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.

[0043] Furthermore, it should be understood in the description of this application 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, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0044] In this application, unless otherwise expressly 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 application according to the specific circumstances.

[0045] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an 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 application. 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 can be combined in any suitable manner in one or more embodiments or examples.

[0046] As shown in Figures 1 to 11, this application provides a food processing machine with reliable sealing, including a cup body 10 that extends through the center, a heating plate 11 located at the bottom opening of the cup body 10, and a cup base 12 located below the cup body 10. The heating plate 11 and the cup base 12 are fixed with screws and clamp the cup body 10 from top to bottom. An outer sealing ring 13 is provided between the bottom surface of the cup body 10 and the cup base 12. The bottom surface of the cup body 10 is provided with a plurality of protrusions 14 distributed along the circumference of the cup body 10. The protrusions 14 are in an interference fit with the upper surface of the outer sealing ring 13.

[0047] The food processing machine of this application utilizes the protrusion 14 on the bottom surface of the cup body 10 to compress the outer sealing ring 13. Since the protrusion 14 is made of rigid material, it does not deform when subjected to external pressure. On the one hand, it can enhance the axial pressing effect of the cup body 10 on the outer sealing ring 13, increase the friction between the cup body 10 and the outer sealing ring 13, improve the anti-slip effect of the outer sealing ring 13, and reduce the probability of the outer sealing ring 13 shifting during the installation of the cup body 10. On the other hand, when the protrusion 14 compresses the outer sealing ring 13, a concave-convex limit is formed between the protrusion 14 and the outer sealing ring 13, which increases the radial limiting effect of the outer sealing ring 13. Compared with the structure of the bottom surface of the cup body 10 being smooth, the outer sealing ring 13 is less likely to slide and shift under the limiting effect, which can ensure the sealing effect between the cup body 10 and the cup base 12 during the use of the cup body 10 after assembly, prevent liquid from entering the cup base 12 from this position and damaging the electronic structure inside the cup base 12, thereby extending the service life of the machine.

[0048] For example, as shown in FIG3, the outer sealing ring 13 includes a radial sealing portion 131 and a first sealing portion extending upward from the outer end of the radial sealing portion 131. The cup base 12 includes a horizontal support surface 121, an extension surface 122 extending upward from the outer end of the support surface 121, and a flange portion 123 folded outward from the top end of the extension surface 122. The radial sealing portion 131 is disposed between the bottom surface of the cup body 10 and the support surface 121. The first sealing portion includes a first sealing section 132 disposed between the extension surface 122 and the side wall of the cup body 10 and a second sealing section 133 disposed between the flange portion 123 and the side wall of the cup body 10. In the embodiment of this application, the protrusion 14 is specifically interference-fitted with the radial sealing portion 131.

[0049] The overall structure of the cup assembly with protrusion 14 is shown in Figure 1. The cup body 10 is equipped with a pulverizing blade 17, and the outer side of the cup base 12 is equipped with a cup body shell 19. A motor 18 is installed inside the cup body shell 19. The upper end of the motor shaft of the motor 18 extends into the cup body 10 and connects to the pulverizing blade 17. The motor 18 drives the pulverizing blade 17 to rotate to process food. The bottom surface of the cup body 10 forms a protrusion 14 made of the same material as the cup body 10, thereby improving the assembly and sealing effect of the outer sealing ring 13.

[0050] In a preferred embodiment of this application, the lower surface of the outer sealing ring 13 is provided with at least one first sealing rib 134, the first sealing rib 134 abuts against the cup base 12 with an interference fit, and the projection of the first sealing rib 134 on the bottom surface of the cup body 10 at least partially falls on the protrusion 14.

[0051] In this embodiment, by providing the first sealing rib 134, the interference effect between the outer sealing ring 13 and the cup base 12 can be enhanced, and the anti-slip effect of the outer sealing ring 13 can be improved. Since at least a portion of the first sealing rib 134 is axially distributed corresponding to the protrusion 14, the force of the protrusion 14 squeezing the outer sealing ring 13 can be directly applied to the first sealing rib 134, which is beneficial to increase the compression amount, reduce the probability of the outer sealing ring 13 shifting, and improve the sealing reliability between the cup body 10 and the cup base 12.

[0052] For example, as shown in FIG4, the outer sealing ring 13 is provided with two first sealing ribs 134. One first sealing rib 134 is located radially outward of the protrusion 14, and the other first sealing rib 134 partially corresponds to the protrusion 14. This is beneficial to increasing the compression amount of the first sealing rib 134 and improving sealing reliability. It is understood that in other examples, the radially innermost first sealing rib 134 can all correspond to the protrusion 14 to further increase the compression amount. Alternatively, in other examples, a single first sealing rib 134 is set with a smaller size, and multiple first sealing ribs 134 are arranged compactly so that multiple first sealing ribs 134 correspond to the protrusion 14, which is beneficial to improving the clamping effect of the outer sealing ring 13.

[0053] In a preferred embodiment of this application, the thickness of the protrusion 14 along the axial direction is d, and the thickness of the outer sealing ring 13 along the axial direction is D, where d < 0.3D.

[0054] As shown in Figure 4, in this embodiment, by reasonably setting the thickness of the protrusion 14 along the axial direction, while ensuring the compression of the protrusion 14 on the outer sealing ring 13, it is possible to avoid the protrusion 14 being too thick, causing a gap between the bottom surface of the cup body 10 and the outer sealing ring 13, which would affect the sealing effect. That is, when d exceeds 0.3D, it will reduce the contact area between the cup body 10 and the outer sealing ring 13, which is not conducive to improving the sealing effect.

[0055] In a preferred embodiment of this application, the cup base 12 is provided with a recess 124, which is correspondingly provided with the protrusion 14.

[0056] As shown in Figures 5 and 6, in this embodiment, by providing the recess 124, on the one hand, it can provide compression space for the outer sealing ring 13, preventing the lower surface of the outer sealing ring 13, which is compressed by the protrusion 14, from not being able to fully fit with the cup base 12 and forming a gap that affects the sealing effect. On the other hand, the protrusion 14 compresses the outer sealing ring 13, causing the upper and lower surfaces of the outer sealing ring 13 to cooperate with the protrusion 14 and the recess 124 respectively, which can enhance the limiting effect of the outer sealing ring 13, prevent the outer sealing ring 13 from shifting, and thus ensure the sealing reliability. At the same time, it is beneficial to limit the cup body 10 radially, preventing the cup body 10 from moving during assembly and use, thereby improving the reliability of the cup body 10.

[0057] The outer sealing ring 13 of this application includes a radial sealing portion 131, the cup base 12 includes a horizontal support surface 121, the bottom surface of the cup body 10 and the support surface 121 together clamp the radial sealing portion 131, the protrusion 14 is press-fitted with the radial sealing portion 131, and correspondingly, the recess 124 is provided on the support surface 121, so that a part of the radial sealing portion 131 squeezed by the protrusion 14 can be pressed into the recess 124.

[0058] In a preferred embodiment, the projection of the protrusion 14 onto the cup base 12 falls entirely within the recess 124.

[0059] In this embodiment, the recess 124 has a large volume, the radial width of the recess 124 is greater than the radial width of the protrusion 14, and the projection of the protrusion 14 falls completely into the recess 124. The axial height of the recess 124 is not less than the axial height of the protrusion 14. This is beneficial for the outer sealing ring 13, which is compressed by the protrusion 14, to be completely pressed into the recess 124 at the corresponding position. This avoids the recess 124 being too small, causing the compressed area to abut against the edge of the recess 124, resulting in a gap between the outer sealing ring 13 and the other planes of the cup base 12, which would affect the sealing effect. At the same time, the recess 124 completely accommodating the compressed part is beneficial for strengthening the radial limiting effect of the outer sealing ring 13, thereby improving the assembly effect of the outer sealing ring 13 and ensuring sealing reliability.

[0060] In a preferred embodiment of this application, the inner sidewall of the cup body 10 is provided with a second protrusion 16, the protrusion 14 and the second protrusion 16 are smoothly connected, and an inner sealing ring 15 is provided between the cup body 10 and the heating plate 11, with the second protrusion 16 and the inner sealing ring 15 in an interference fit.

[0061] As shown in Figures 7 and 8, in this embodiment, the protrusion 14 and the second protrusion 16 simultaneously enhance the compression effect of the outer sealing ring 13 and the inner sealing ring 15, thereby improving the sealing effect between the cup body 10 and the heating plate 11, as well as between the cup body 10 and the cup base 12, thus improving the overall sealing performance of the cup assembly. The protrusion 14 and the second protrusion 16 are, for example, integrally formed, and both are made of rigid material, which enhances the pressing effect of the outer sealing ring 13 and the inner sealing ring 15, thereby improving the sealing performance on both sides of the cup body 10. This application does not limit the shape of the second protrusion 16; for example, the second protrusion 16 may be an arc-shaped protrusion, and the thickness of the second protrusion 16 may vary non-uniformly along the radial direction, which helps to better distance a portion of the second protrusion 16 from the heating plate 11.

[0062] In one embodiment, the minimum distance between the second protrusion 16 and the outer wall of the heating plate 11 is greater than 1.5 mm.

[0063] The second protrusion 16 is, for example, an arc-shaped protrusion. The thickness of the second protrusion 16 varies non-uniformly along the radial direction, as shown in Figure 9. The closest distance between the second protrusion 16 and the heating plate 11 is a. By making a > 1.5 mm, it can prevent the cup body 10 from being too close to the heating plate 11 in some areas, which would cause the temperature at that location to be too high during the working state of the cup body 10. This would create a large temperature difference with the upper part of the cup body 10, increasing the risk of stress cracking of the cup body 10 and helping to extend the service life of the cup body 10.

[0064] In one embodiment, the inner sealing ring 15 is provided with at least one second sealing rib (not shown in the figure) on the side facing the outer wall of the heating plate 11, and the projection of the second sealing rib on the inner wall of the cup body 10 at least partially falls on the second protrusion 16.

[0065] In this embodiment, by setting a second sealing rib and distributing the second sealing rib at least partially corresponding to the second protrusion 16, the force exerted by the second protrusion 16 on the inner sealing ring 15 can be directly applied to the second sealing rib, which is beneficial to increase the compression amount and improve the sealing effect between the cup body 10 and the heating plate 11.

[0066] In a preferred embodiment of this application, the heating plate 11 is inclined to have an inclined highest area 111 and an inclined lowest area 112, and at least a portion of the protrusions 14 are provided on one side of the cup body 10 corresponding to the inclined lowest area 112.

[0067] As shown in Figure 10, in this embodiment, when the heating plate 11 is tilted, the slurry turbulence is more intense and the slurry impact force is greater near the lowest tilted area 112. In order to improve the sealing performance of the cup body 10 on this side, at least a portion of the protrusions 14 are provided on the side of the cup body 10 corresponding to the lowest tilted area 112. By improving the squeezing effect of the outer sealing ring 13 through the protrusions 14, it is beneficial to strengthen the compactness between the cup body 10 and the cup base 12. Under the premise that the heating plate 11 and the cup base 12 clamp the cup body 10, it is beneficial to strengthen the compactness between the cup body 10 and the heating plate 11, improve the clamping effect of the cup body 10, thereby improving the sealing performance between the cup body 10 and the heating plate 11, ensuring that the liquid near the lowest tilted area 112 will not leak, and ensuring the reliability of the seal.

[0068] When multiple protrusions 14 are spaced apart, the heating plate 11 can be assembled according to the position of the protrusions 14, so that the protrusions 14 are distributed on one side of the lowest point of the heating plate 11 to ensure the sealing of the cup body 10 on that side. When there are multiple protrusions 14, the multiple protrusions 14 can be distributed around the bottom surface of the cup body 10, or the protrusions 14 can be distributed only on one side of the lowest point of the heating plate 11.

[0069] In one embodiment, an inner sealing ring 15 is provided between the cup body 10 and the heating plate 11. The inner wall of the cup body 10 near the bottom opening is provided with an inwardly extending transition portion 101. The protrusion 14 is provided correspondingly to the transition portion 101. The inner sealing ring 15 is provided between the transition portion 101 and the heating plate 11.

[0070] As shown in Figure 11, in this embodiment, by aligning the protrusion 14 with the transition portion 101, the reaction force of the protrusion 14 pressing the outer sealing ring 13 to clamp the cup body 10 and the cup base 12 can better act on the inner sealing ring 15 of the transition portion 101, thereby enhancing the clamping effect of the inner sealing ring 15. This can improve the sealing performance of the inner side of the cup body 10 and prevent the liquid in the cup body 10 from leaking out from the mating position of the cup body 10 and the heating plate 11, thus affecting the reliability of the cup body 10.

[0071] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0072] 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.

[0073] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A reliably sealed food processing machine, comprising an axially extending cup body, a heating plate disposed at an opening at the bottom of the cup body, and a cup base disposed below the cup body, wherein the heating plate and the cup base are fixed by screws and clamp the cup body from above and below, characterized in that, An outer sealing ring is provided between the bottom surface of the cup body and the cup base. The bottom surface of the cup body is provided with a plurality of protrusions distributed along the circumference of the cup body. The protrusions are in an interference fit with the upper surface of the outer sealing ring.

2. The food processing machine with reliable sealing according to claim 1, characterized in that, The lower surface of the outer sealing ring is provided with at least one first sealing rib, the first sealing rib abuts against the cup base with an interference fit, and the projection of the first sealing rib on the bottom surface of the cup body at least partially falls on the rib.

3. The food processing machine with reliable sealing according to claim 1, characterized in that, The thickness of the protrusion along the axial direction is d, and the thickness of the outer sealing ring along the axial direction is D, where d < 0.3D.

4. The food processing machine with reliable sealing according to claim 1, characterized in that, The cup base has a recessed portion, which is correspondingly provided with the protrusion.

5. A reliably sealed food processing machine according to claim 4, characterized in that, The projection of the protrusion on the cup base falls completely into the recess.

6. A reliably sealed food processing machine according to claim 1, characterized in that, The inner wall of the cup body is provided with a second protrusion, the protrusion and the second protrusion are smoothly connected, and an inner sealing ring is provided between the cup body and the heating plate, with the second protrusion and the inner sealing ring abutting and interfering with each other.

7. A reliably sealed food processing machine according to claim 6, characterized in that, The minimum distance between the second protrusion and the outer wall of the heating plate is greater than 1.5 mm.

8. A reliably sealed food processing machine according to claim 6, characterized in that, The inner sealing ring is provided with at least one second sealing rib on the side facing the outer wall of the heating plate, and the projection of the second sealing rib on the inner wall of the cup body at least partially falls on the second protrusion.

9. A reliably sealed food processing machine according to claim 1, characterized in that, The heating plate is tilted to have a highest tilted area and a lowest tilted area, and at least a portion of the protrusions are located on one side of the cup body corresponding to the lowest tilted area.

10. A reliably sealed food processing machine according to claim 9, characterized in that, An inner sealing ring is provided between the cup body and the heating plate. The inner wall of the cup body near the bottom opening has an inwardly extending transition portion. The protrusion is provided corresponding to the transition portion. The inner sealing ring is provided between the transition portion and the heating plate.

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