Cup body assembly reliable in sealing

Abstract

The reliable-sealing cup body assembly is applied to a food processor and 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 vertically clamp the cup body, and an inner sealing ring is arranged between the cup body and the heating disc. An outer sealing ring is arranged between the cup body and the cup base, a first inclined face abutting against the inner sealing ring is arranged on the outer side wall of the heating disc, a first protrusion abutting against the cup body is arranged on the side, facing the cup body, of the inner sealing ring, the cup base is provided with a first matching face abutting against the outer sealing ring, and a first vertical line is made from the vertex of the first protrusion to the first inclined face. The reverse extension line of the first vertical line intersects with the first matching surface. The first protrusion is arranged on the inner sealing ring, so that friction force between the inner sealing ring and the cup body is increased, displacement of the inner sealing ring can be prevented, sealing reliability is guaranteed, the installation concentricity of the heating disc and the cup body is guaranteed, the working stability of the smashing cutter is improved, and noise is reduced.

Description

Technical Field

[0001] This utility model relates to the field of food processing machines, specifically to a reliably sealed cup assembly. Background Technology

[0002] The grinding cup assembly of existing food processors generally includes a cup body, a heating plate located at the bottom opening of the cup body, and a cup seat assembly located below the cup body. In one installation method, the cup body and the cup seat assembly are connected by threads. Since the lower end of the cup body needs to be provided with external threads, the processing precision requirements for the cup body are high, and the cost is also high.

[0003] In another installation method, the cup holder assembly and the heating plate are fastened together to clamp the cup body. This structure eliminates the need for external threads on the cup body, resulting in a relatively simple structure. Related patent CN201822272243.7 discloses such a cup body assembly; in addition to the above structure, a sealing ring is provided between the heating plate and the cup body to achieve a seal between them. It is understandable that during the installation and tightening of the cup holder assembly and the heating plate, the sealing ring between the heating plate and the cup body will inevitably be squeezed. This process can easily cause the sealing ring to shift, potentially resulting in one side of the sealing ring being higher than the other. This can lead to the following problems: the lower side of the sealing ring will create a noticeable gap between the top of the heating plate and the cup body, which is prone to residue buildup and difficult to clean; the sealing ring will not be level, causing the heating plate to tilt, affecting the concentricity between the heating plate and the cup body. Furthermore, the tilt of the heating plate will cause the pulverizing blade assembly to tilt, which in severe cases will affect the transmission effect of the motor to the pulverizing blade assembly. The pulverizing blade assembly will easily shake when rotating, making it susceptible to rotational jamming due to the influence of materials, and also causing abnormal noise due to friction between parts, increasing operating noise and reducing the overall performance of the pulverizing cup assembly. Utility Model Content

[0004] This utility model provides a reliably sealed cup assembly, aiming to solve the technical problems in existing cup clamping and installation schemes, where the sealing ring between the cup body and the heating plate is prone to displacement during installation, resulting in poor sealing reliability and poor concentricity between the heating plate and the cup body.

[0005] This utility model discloses a reliably sealed cup assembly for use in a food processing machine. It includes an axially extending cup body, a heating plate located at the bottom opening of the cup body, and a cup base located below the cup body. The heating plate and the cup base are fixed together by screws and clamp the cup body tightly. An inner sealing ring is provided between the cup body and the heating plate, and an outer sealing ring is provided between the cup body and the cup base. The outer wall of the heating plate has a first inclined surface that abuts against the inner sealing ring. The inner sealing ring has a first protrusion on the side facing the cup body that abuts against the cup body. The cup base has a first mating surface that abuts against the outer sealing ring. A first perpendicular line is drawn from the apex of the first protrusion to the first inclined surface, and the reverse extension of the first perpendicular line intersects the first mating surface.

[0006] The reliably sealed cup assembly of this utility model also has the following additional technical features:

[0007] The outer wall of the heating plate is provided with a second inclined surface that abuts against the inner sealing ring. The second inclined surface is located above the first inclined surface and radially outside the first inclined surface. The inner sealing ring is provided with a second protrusion that abuts against the cup body. The cup base is provided with a second mating surface above the first mating surface that abuts against the outer sealing ring. A second perpendicular line is drawn from the apex of the second protrusion to the extension line of the second inclined surface. The reverse extension line of the second perpendicular line intersects the second mating surface.

[0008] The first perpendicular line is parallel to the second perpendicular line.

[0009] The inner wall of the cup body includes, from top to bottom, a first straight wall, an outwardly convex first arc-shaped wall, an inwardly convex second arc-shaped wall, and a second straight wall. The first protrusion is in interference fit with the second arc-shaped wall, and the second protrusion is in interference fit with the first arc-shaped wall.

[0010] The reverse extension of the second vertical line is perpendicular to the second mating surface.

[0011] The thickness of the inner sealing ring increases from top to bottom.

[0012] The outer sealing ring is provided with a third protrusion that is interference-fitted with the first mating surface.

[0013] The cup base is provided with a support surface that supports the bottom of the cup body. The outer sealing ring includes a horizontal sealing part that is clamped between the bottom of the cup body and the support surface. The horizontal sealing part is provided with a fourth protrusion that is interference-fitted with the support surface.

[0014] The top surface of the inner sealing ring is flush with the top surface of the heating plate.

[0015] The projection of the inner sealing ring in the horizontal direction falls within the projection of the outer sealing ring in the horizontal direction.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects:

[0017] 1. The reliably sealed cup assembly of this utility model, by forming a first protrusion on the inner sealing ring, increases the friction between the inner sealing ring and the cup body when the inner sealing ring is squeezed during the tightening process of the heating plate and the cup base screws. This prevents the inner sealing ring from shifting and ensures that the inner sealing ring is in a horizontal state, thus ensuring sealing reliability. It also prevents the heating plate from tilting due to the inner sealing ring being skewed, which would affect the concentricity of the heating plate and the cup body, thereby affecting the working stability of the pulverizing blade assembly and increasing noise. Furthermore, when the first protrusion is under force, the force acts along the first vertical line on the first mating surface, which can clamp the outer sealing ring between the cup body and the cup base. This also improves the sealing effect between the cup body and the cup base. Moreover, the outer sealing ring forms a surface contact with the first mating surface, with a large force-bearing area, which can distribute the force and avoid excessive local impact on the outer sealing ring, thus affecting its service life.

[0018] 2. To further improve the installation effect of the inner sealing ring, the outer wall of the heating plate is provided with a second inclined surface that abuts against the inner sealing ring. The second inclined surface is located above the first inclined surface and radially outside the first inclined surface. The inner sealing ring is provided with a second protrusion that abuts against the cup body. The cup base is provided with a second mating surface above the first mating surface that abuts against the outer sealing ring. A second perpendicular line is drawn from the apex of the second protrusion to the extension line of the second inclined surface. The reverse extension line of the second perpendicular line intersects the second mating surface. Thus, when the heating plate and the cup base are tightened with screws, the multiple protrusions help to increase the friction between the inner sealing ring and the cup body, which can further reduce the probability of displacement of the inner sealing ring, thereby optimizing the installation effect of the inner sealing ring. In addition, when the second protrusion is under force, the force acts on the second mating surface along the second perpendicular line, which can strengthen the sealing effect of the outer sealing ring between the cup body and the cup base. Moreover, the outer sealing ring and the second mating surface form a surface contact, with a large force-bearing area, which can disperse the force and avoid excessive local impact on the outer sealing ring, thus affecting its service life.

[0019] 3. In one embodiment, the first vertical line is parallel to the second vertical line. When the first protrusion and the second protrusion are subjected to force, the force direction is the same, which is beneficial to balanced force distribution and can avoid excessive impact on the inner sealing ring, thus affecting its service life.

[0020] 4. In one embodiment, the inner wall of the cup body includes, from top to bottom, a first straight wall, an outwardly convex first arc-shaped wall, an inwardly convex second arc-shaped wall, and a second straight wall. The first protrusion is interference-fitted with the second arc-shaped wall, and the second protrusion is interference-fitted with the first arc-shaped wall. It can be understood that the combination of straight and arc-shaped walls in the cup body can achieve a variable diameter setting with a smooth transition. Under the premise of meeting the capacity requirements of the cup body, it provides favorable conditions for the installation of the heating plate and the inner sealing ring. The first and second protrusions are deformed under pressure during the fixing of the heating plate, and double sealing is achieved at the two arc-shaped walls, which can improve the sealing reliability.

[0021] 5. In one embodiment, the reverse extension of the second vertical line is perpendicular to the second mating surface. In this embodiment, the second mating surface is an inclined surface. When the second protrusion is subjected to force, the force acts on the second mating surface along the second vertical line, which can strengthen the sealing of the outer sealing ring, thereby improving the sealing effect between the cup body and the cup base.

[0022] 6. To improve the sealing effect at the inner sealing ring, the thickness of the inner sealing ring increases from top to bottom, which helps to match the gap shape between it and the cup body and the heating plate to better fill the gap, prevent water leakage, improve sealing reliability, and delay the time of deformation failure of the inner sealing ring, thus extending its service life.

[0023] 7. In order to improve the sealing effect at the outer sealing ring, the outer sealing ring is provided with a third protrusion that is interference-fitted with the first mating surface. The setting of the third protrusion can improve the sealing reliability, prevent dust and water droplets from entering the cup base and causing adverse effects on electrical components, and the interference fit between the third protrusion and the first mating surface can disperse the fixing stress, which is beneficial to extending the service life of the outer sealing ring.

[0024] 8. To improve the sealing effect at the outer sealing ring, the cup base is provided with a support surface supporting the bottom surface of the cup body. The outer sealing ring includes a horizontal sealing part sandwiched between the bottom surface of the cup body and the support surface. The horizontal sealing part is provided with a fourth protrusion that is interference-fitted with the support surface. Thus, the horizontal sealing part can achieve axial sealing between the cup body and the cup base, while the outer sealing ring also provides radial sealing between the cup body and the first mating surface. The double sealing can effectively prevent water flowing down the outer wall of the cup body from entering the interior of the cup base, thereby protecting the electrical components inside the cup base. The interference fit between the fourth protrusion and the support surface can disperse the fixing stress, which is beneficial to extending the service life of the outer sealing ring.

[0025] 9. To prevent residue from accumulating at the inner sealing ring, making the cup difficult to clean, the top surface of the inner sealing ring is flush with the top surface of the heating plate. This prevents residue from accumulating between the inner sealing ring and the cup if the top of the inner sealing ring extends too high above the heating plate, creating a cleaning dead zone. If not cleaned in time, this can easily produce odors and affect hygiene. Conversely, if the top of the inner sealing ring is lower than the top surface of the heating plate, it can easily form a depression, which can also easily accumulate residue and be difficult to clean. Therefore, by making the inner sealing ring and the heating plate flush, residue accumulation can be prevented, the cup can be easily cleaned, and the design is aesthetically pleasing.

[0026] 10. In order to extend the service life of the cup, the projection of the inner sealing ring in the horizontal direction falls within the projection of the outer sealing ring in the horizontal direction. This is so that when the heating plate is fastened to the cup base, the force of the inner sealing ring is transmitted to the outer sealing ring after being subjected to force, and the outer sealing ring has a larger coverage area, which can disperse more fixing stress, reduce the risk of cup breakage, and thus extend the service life of the cup. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0028] Figure 1 This is a schematic diagram of the cup assembly according to one embodiment of this application.

[0029] Figure 2 This is a partially enlarged schematic diagram of a cup assembly with a raised inner sealing ring according to one embodiment of this application.

[0030] Figure 3 This is a partially enlarged schematic diagram of a cup assembly with two protrusions in the inner sealing ring according to one embodiment of this application.

[0031] Figure 4 This is a partially enlarged schematic diagram of a cup assembly with a multi-segment sealing portion on the outer sealing ring according to one embodiment of this application.

[0032] Figure label:

[0033] 10. Cup body; 101. First straight wall; 102. First curved wall; 103. Second curved wall; 104. Second straight wall; 11. Heating plate; 111. First inclined surface; 112. Second inclined surface; 12. Cup base; 121. First mating surface; 122. Second mating surface; 123. Supporting surface; 13. Inner sealing ring; 131. First protrusion; 132. Second protrusion; 14. Outer sealing ring; 141. Vertical sealing part; 142. Horizontal sealing part; 143. Extended sealing part; 144. Third protrusion; 145. Fourth protrusion; 15. First vertical line; 16. Second vertical line; 17. Motor; 18. Crusher. Detailed Implementation

[0034] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0035] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0036] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0037] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; 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. However, specifying a direct connection indicates that the two connected entities do not establish a connection relationship through a transitional structure, but are connected solely by a connecting structure to form a whole. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0040] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] like Figures 1 to 4 As shown, this application provides a reliably sealed cup assembly for use in a food processing machine. It includes an axially extending cup body 10, 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. This clamping and fixing by the cup body 10 eliminates the need for threaded structures on the cup body 10, simplifying its structure. To achieve the fixing of the cup body 10, for example, the bottom of the heating plate 11 has a downwardly extending screw post, and the cup base 12 has a screw hole corresponding to the screw post. The heating plate 11 and the cup base 12 are fixed by fasteners, i.e., screws passing through the screw holes and screw posts, so that the heating plate 11 and the cup base 12 together clamp the cup body 10. Furthermore, by providing sealing rings on both the inner and outer sides of the cup body 10, a seal is achieved while also providing flexible clamping, which helps reduce the probability of the cup body 10 breaking due to excessive force and reduces vibration transmission during operation, thus reducing noise.

[0042] Specifically, such as Figure 1 and Figure 2As shown, an inner sealing ring 13 is provided between the cup body 10 and the heating plate 11, and an outer sealing ring 14 is provided between the cup body 10 and the cup base 12. The outer side wall of the heating plate 11 is provided with a first inclined surface 111 that abuts against the inner sealing ring 13. The inner sealing ring 13 is provided with a first protrusion 131 that abuts against the cup body 10 on the side facing the cup body 10. The cup base 12 is provided with a first mating surface 121 that abuts against the outer sealing ring 14. A first perpendicular line 15 is drawn from the apex of the first protrusion 131 to the first inclined surface 111, and the reverse extension of the first perpendicular line 15 intersects the first mating surface 121.

[0043] By forming a first protrusion 131 on the inner sealing ring 13, when the inner sealing ring 13 is squeezed during the screw tightening process of the heating plate 11 and the cup base 12, the first protrusion 131 helps to increase the friction between the inner sealing ring 13 and the cup body 10, thus preventing the inner sealing ring 13 from shifting. Ultimately, it can ensure that the inner sealing ring 13 is in a horizontal state, ensuring sealing reliability. Moreover, it can prevent the heating plate 11 from tilting due to the inner sealing ring 13 being skewed, affecting the concentricity of the heating plate 11 and the cup body 10, and thus affecting the working stability of the pulverizer 18 assembly and increasing noise. Furthermore, when the first protrusion 131 is subjected to force, the force acts along the first vertical line 15 on the first mating surface 121, which can make the cup body 10 and the cup base 12 clamp the outer sealing ring 14, thus improving the sealing effect between the cup body 10 and the cup base 12. Moreover, the outer sealing ring 14 forms a surface contact with the first mating surface 121, with a large force-bearing area, which can disperse the force and avoid excessive impact on the outer sealing ring 14, thus affecting its service life.

[0044] like Figure 2 As shown, the first mating surface 121 can extend vertically or obliquely. In this embodiment, the first mating surface 121 extends vertically, and the outer sealing ring 14 includes a vertical sealing portion 141 located between the first mating surface 121 and the outer side wall of the cup body 10, which can achieve radial sealing between the cup body 10 and the cup base 12.

[0045] Furthermore, the cup assembly also includes, for example, a motor 17 disposed in the cup base 12 and a pulverizing blade 18 driven by the motor 17. The motor 17 is fixedly connected to the lower part of the heating plate 11. The upper end of the motor shaft of the motor 17 passes through the heating plate 11 and is fixed to the pulverizing blade 18. The center of gravity of the motor 17 is relatively high, which can improve the stability of the pulverizing blade 18 during operation.

[0046] In a preferred embodiment, the outer wall of the heating plate 11 is provided with a second inclined surface 112 that abuts against the inner sealing ring 13. The second inclined surface 112 is located above the first inclined surface 111 and radially outside the first inclined surface 111. The inner sealing ring 13 is provided with a second protrusion 132 that abuts against the cup body 10. The cup base 12 is provided with a second mating surface 122 that abuts against the outer sealing ring 14 above the first mating surface 121. A second perpendicular line 16 is drawn from the apex of the second protrusion 132 to the extension line of the second inclined surface 112. The reverse extension line of the second perpendicular line 16 intersects the second mating surface 122.

[0047] When the inner sealing ring 13 has a first protrusion 131 and a second protrusion 132, the multiple protrusions help increase the friction between the inner sealing ring 13 and the cup body 10 when the heating plate 11 is tightened with screws to the cup base 12. This further reduces the probability of displacement of the inner sealing ring 13, thereby optimizing the installation effect of the inner sealing ring 13. In addition, when the second protrusion 132 is under force, the force acts on the second mating surface 122 along the second vertical line 16, which can enhance the sealing effect of the outer sealing ring 14 between the cup body 10 and the cup base 12. Moreover, the outer sealing ring 14 forms a surface contact with the second mating surface 122, with a large force-bearing area, which can disperse the force and avoid excessive impact on the outer sealing ring 14, thus affecting its service life.

[0048] like Figure 3 As shown, in one embodiment, the first vertical line 15 is parallel to the second vertical line 16. When the first protrusion 131 and the second protrusion 132 are subjected to force, the force direction is the same, which is conducive to balanced force distribution and can avoid excessive impact on the inner sealing ring 13, thus affecting its service life.

[0049] like Figure 1 and Figure 3 As shown, in one embodiment, the inner wall of the cup body 10 includes, from top to bottom, a first straight wall 101, an outwardly convex first arcuate wall 102, an inwardly convex second arcuate wall 103, and a second straight wall 104. The first protrusion 131 is in an interference fit with the second arcuate wall 103, and the second protrusion 132 is in an interference fit with the first arcuate wall 102.

[0050] The cup body 10 employs a combination of straight and curved walls to achieve a smooth transition in diameter setting. While meeting the capacity requirements of the cup body 10, this provides favorable conditions for the installation of the heating plate 11 and the inner sealing ring 13. The first curved wall 102 and the second curved wall 103 are adjacent and smoothly transitioned. The first protrusion 131 and the second protrusion 132 deform under pressure during the fixing of the heating plate 11, achieving double sealing at the two curved walls and improving sealing reliability. It can be understood that the outward convexity of the first curved wall 102 means that the center of the corresponding arc is located inside the first curved wall 102, and the inward convexity of the second curved wall 103 means that the center of the corresponding arc is located outside the second curved wall 103.

[0051] like Figure 3 As shown, in one embodiment, the reverse extension of the second vertical line 16 is perpendicular to the second mating surface 122. In this embodiment, the second mating surface 122 is an inclined surface. When the second protrusion 132 is subjected to force, the force acting along the second vertical line 16 on the second mating surface 122 can strengthen the sealing of the outer sealing ring 14, thereby improving the sealing effect between the cup body 10 and the cup base 12.

[0052] In a preferred embodiment, the thickness of the inner sealing ring 13 increases from top to bottom.

[0053] like Figure 3 As shown, the shape of the inner sealing ring 13 is designed to better match the gap between the cup body 10 and the heating plate 11, thus better filling the gap, preventing leakage, improving sealing reliability, and delaying the time of deformation failure of the inner sealing ring 13, extending its service life. Specifically, the second inclined surface 112 is closer to the cup body 10 than the first inclined surface 111, and the gap between the second inclined surface 112 and the cup body 10 is smaller, allowing the upper end of the inner sealing ring 13 to be thinner, which is more conducive to clamping and thus reduces the risk of leakage. Then, as the gap between the heating plate 11 and the cup body 10 increases, the thickness of the inner sealing ring 13 needs to increase to provide a reliable seal. It is understood that the thickness of the inner sealing ring 13 can be non-uniformly varied, specifically set according to the shape of the gap between the heating plate 11 and the cup body 10.

[0054] In a preferred embodiment, the outer sealing ring 14 is provided with a third protrusion 144 that is interference-fitted with the first mating surface 121.

[0055] like Figure 4 As shown, the third protrusion 144 can improve the sealing reliability, prevent dust and water droplets from entering the cup base 12 and causing adverse effects on electrical components. Moreover, the interference fit between the third protrusion 144 and the first mating surface 121 can disperse the fixing stress, which is beneficial to extending the service life of the outer sealing ring 14.

[0056] In a preferred embodiment, the cup base 12 is provided with a support surface 123 that supports the bottom surface of the cup body 10, and the outer sealing ring 14 includes a horizontal sealing part 142 sandwiched between the bottom surface of the cup body 10 and the support surface 123. The horizontal sealing part 142 is provided with a fourth protrusion 145 that is interference-fitted with the support surface 123.

[0057] like Figure 4As shown, the horizontal sealing part 142 can achieve axial sealing between the cup body 10 and the cup base 12, while the vertical sealing part 141 can achieve radial sealing between the cup body 10 and the cup base 12. The double sealing can effectively prevent water flowing down the outer wall of the cup body 10 from entering the interior of the cup base 12, thereby protecting the electrical components inside the cup base 12. The fourth protrusion 145 and the support surface 123 are interference-fitted to disperse the fixing stress, which is beneficial to extending the service life of the outer sealing ring 14.

[0058] Furthermore, the outer sealing ring 14 also includes an extended sealing portion 143 located between the top surface of the cup base 12 and the cup body 10, which can further expand the sealing range, improve the sealing effect, effectively disperse the fixing stress on the cup body 10 caused by the clamping and fixing between the heating plate 11, the cup base 12 and the cup body 10, reduce the risk of the cup body 10 breaking, and the outer sealing ring 14 provides a larger range of soft contact, which helps to reduce the vibration transmission of the cup body 10 during operation and reduce noise.

[0059] As a preferred implementation method, such as Figure 2 As shown, the top surface of the inner sealing ring 13 is flush with the top surface of the heating plate 11. This prevents the inner sealing ring 13 from extending too high above the heating plate 11, which would cause residue to accumulate between the inner sealing ring 13 and the cup body 10, creating a cleaning dead zone. If not cleaned in time, this can easily produce odors and affect hygiene. Conversely, if the top of the inner sealing ring 13 is lower than the top surface of the heating plate 11, it can easily form a depression, which can also easily accumulate residue and make it difficult to clean. In other words, by making the inner sealing ring 13 and the heating plate 11 flush, residue accumulation can be prevented, the cup body 10 can be easily cleaned, and the design is aesthetically pleasing.

[0060] In a preferred embodiment, the projection of the inner sealing ring 13 in the horizontal direction falls within the projection of the outer sealing ring 14 in the horizontal direction.

[0061] Specifically, the outer sealing ring 14 includes, for example, an extended sealing portion 143, a vertical sealing portion 141, and a horizontal sealing portion 142 connected sequentially from top to bottom. The end of the extended sealing portion 143 is located outside the inner sealing ring 13, and the end of the horizontal sealing portion 142 is located inside the inner sealing ring 13, so that the projection of the inner sealing ring 13 in the horizontal direction falls within the projection of the outer sealing ring 14 in the horizontal direction. This allows the outer sealing ring 14 to have a larger coverage area when the heating plate 11 is fastened to the cup base 12, and the force of the inner sealing ring 13 is transmitted to the outer sealing ring 14 after being subjected to force. This can disperse more fixing stress, reduce the risk of damage to the cup body 10, and thus extend the service life of the cup body 10.

[0062] The technical solutions protected by this utility model are not limited to the above embodiments. It should be noted that any combination of the technical solutions of any embodiment with one or more other embodiments is within the protection scope of this utility model. Although this utility model has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A reliably sealed cup assembly, used in a 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 screwed together and clamp the cup body vertically, characterized in that, An inner sealing ring is provided between the cup body and the heating plate, and an outer sealing ring is provided between the cup body and the cup base. The outer side wall of the heating plate is provided with a first inclined surface that abuts against the inner sealing ring. The inner sealing ring is provided with a first protrusion that abuts against the cup body on the side facing the cup body. The cup base is provided with a first mating surface that abuts against the outer sealing ring. A first perpendicular line is drawn from the apex of the first protrusion to the first inclined surface, and the reverse extension of the first perpendicular line intersects the first mating surface.

2. The reliably sealed cup assembly according to claim 1, characterized in that, The outer wall of the heating plate is provided with a second inclined surface that abuts against the inner sealing ring. The second inclined surface is located above the first inclined surface and radially outside the first inclined surface. The inner sealing ring is provided with a second protrusion that abuts against the cup body. The cup base is provided with a second mating surface above the first mating surface that abuts against the outer sealing ring. A second perpendicular line is drawn from the apex of the second protrusion to the extension line of the second inclined surface. The reverse extension line of the second perpendicular line intersects the second mating surface.

3. The reliably sealed cup assembly according to claim 2, characterized in that, The first perpendicular line is parallel to the second perpendicular line.

4. A reliably sealed cup assembly according to claim 2, characterized in that, The inner wall of the cup body includes, from top to bottom, a first straight wall, an outwardly convex first arc-shaped wall, an inwardly convex second arc-shaped wall, and a second straight wall. The first protrusion is in interference fit with the second arc-shaped wall, and the second protrusion is in interference fit with the first arc-shaped wall.

5. A reliably sealed cup assembly according to claim 2, characterized in that, The reverse extension of the second vertical line is perpendicular to the second mating surface.

6. A reliably sealed cup assembly according to claim 1, characterized in that, The thickness of the inner sealing ring increases from top to bottom.

7. A reliably sealed cup assembly according to claim 1, characterized in that, The outer sealing ring is provided with a third protrusion that is interference-fitted with the first mating surface.

8. A reliably sealed cup assembly according to claim 1, characterized in that, The cup base is provided with a support surface that supports the bottom of the cup body. The outer sealing ring includes a horizontal sealing part that is clamped between the bottom of the cup body and the support surface. The horizontal sealing part is provided with a fourth protrusion that is interference-fitted with the support surface.

9. A reliably sealed cup assembly according to claim 1, characterized in that, The top surface of the inner sealing ring is flush with the top surface of the heating plate.

10. A reliably sealed cup assembly according to claim 1, characterized in that, The projection of the inner sealing ring in the horizontal direction falls within the projection of the outer sealing ring in the horizontal direction.

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