CN220695083U - Soybean milk machine - Google Patents

Abstract

The utility model discloses a soybean milk machine, which belongs to the field of food processing and solves the problem that a sealing gasket is unevenly stressed and possibly loses sealing effect. The utility model is mainly used for manufacturing slurry, ensures the sealing reliability of the sealing gasket, and can keep good sealing relation with the upper cover and the lower cover of the machine head even if uneven stress occurs.

Description

Soybean milk machine

Technical Field

The utility model relates to the field of food processing, in particular to a soymilk machine.

Background

The soybean milk machine products in the market at present are mostly composed of a machine head and a cup body. The machine head consists of an upper cover and a lower cover, the lower cover of some machine types is divided into two layers and consists of an inner layer lower cover and an outer layer lower cover, components such as a motor, a circuit board and the like are arranged on the inner layer lower cover, for example, CN209285191U discloses a soybean milk machine with good sealing effect, the soybean milk machine comprises a machine head 1 and a cup body, the machine head 1 is buckled on the cup body, the machine head 1 comprises a machine head upper cover 11 and a machine head lower cover 12, the machine head lower cover 12 comprises an inner layer lower cover 121 and an outer layer lower cover 122, a first flanging 1211 is arranged at the top edge of the inner layer lower cover 121, a second flanging 1221 is arranged at the top edge of the outer layer lower cover 122, an upper sealing gasket 13 is arranged between the machine head upper cover 11 and the first flanging 1211, a lower sealing gasket 14 is arranged between the first flanging 1211 and the second flanging 1221, the machine head upper cover 11 is sleeved on the periphery of the first flanging 1211, a first extending part 131 is arranged on the outer ring of the upper sealing gasket 13, and the machine head upper cover 11 is pressed on the outer peripheral side surface 1211 along the assembling direction in a clockwise direction. The prior art realizes double sealing in the radial direction of the machine head 1 by utilizing the upper sealing gasket 13 and the lower sealing gasket 14, and improves the waterproof sealing property of the inner space of the machine head 1. The upper sealing gasket 13 is clamped and fixed by the upper cover 11 and the first flange 1211, and the upper cover 11 compresses the first extension portion 131 on the outer peripheral side surface of the first flange 1211, so that the upper sealing gasket 13 can be in a tensioning state by using the first extension portion 131 to stretch the upper sealing gasket 13, and thus the upper cover 11 can be more uniform when compressing the upper sealing gasket 13, local deformation and wrinkling of the upper sealing gasket 13 are avoided, and the reliability of radial sealing is further improved. However, in the actual assembly process, when the assembly worker is screwing, the tightening degrees of different screws are different, so that the stress of different parts of the upper sealing gasket 13 is different, the deformation of the upper sealing gasket 13 is further uneven, the situation that the upper sealing gasket 13 cannot be well attached to the first flange 1211 easily occurs, and the sealing failure easily occurs.

Disclosure of Invention

The utility model aims to provide the soymilk machine, solves the problem that the sealing effect of the sealing gasket of the machine head is possibly lost due to uneven stress, ensures the sealing reliability of the sealing gasket, and can keep good sealing relation with the upper cover and the lower cover of the machine head even if the situation of uneven stress occurs.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a soybean milk machine, includes aircraft nose and cup, and the aircraft nose includes upper cover and lower cover, and the upper cover has the pressure equipment plane, and the top of lower cover is equipped with the turn-ups of outside extension, and the upper surface of turn-ups has the mounting plane, is equipped with sealed the pad on the mounting plane, and the upper surface of sealed pad is equipped with the upper wave face that extends from inside to outside, and the lower surface of sealed pad is equipped with the lower wave face that extends from inside to outside, and the crest of upper wave face is relative with the crest of lower wave face, and the trough of upper wave face is relative with the trough of lower wave face, and pressure equipment plane and mounting plane centre gripping are sealed the pad and are realized sealedly.

After the technical scheme is adopted, the utility model has the following advantages: the upper surface and the lower surface of the sealing gasket are provided with wave surfaces, so that the sealing gasket can obtain better deformation capacity, when the upper cover is fixedly connected with the lower cover, the press-fit plane and the installation plane clamp the sealing gasket, so that the upper wave surface and the lower wave surface deform towards the plane structure, stronger reaction force can be generated by the upper wave surface and the lower wave surface in turn, the wave crest of the upper wave surface can keep contact with the press-fit plane, the wave trough of the lower wave surface keeps contact with the installation plane, and the contact area between the upper wave surface and the press-fit plane and between the lower wave surface and the installation plane is increased along with the increase of deformation, the better understanding state is that the upper wave surface becomes a plane and is jointed with the press-fit plane, the lower wave surface becomes a plane and is jointed with the installation plane, and a reliable and stable sealing effect is obtained, and even if the partial stress of the sealing gasket is uneven, the contact area between the upper wave surface and the press-fit plane and the contact relation between the lower wave surface and the installation plane are not changed, so that the sealing failure does not occur; the upper wave surface and the lower wave surface extend from inside to outside, and if the upper wave surface and the lower wave surface are not completely formed into a planar structure, the wave crest of the upper wave surface and the wave trough of the lower wave surface can form an annular sealing rib structure to form a multiple sealing effect; after the sealing gasket is extruded, the sealing gasket radially extends outwards, a gap area between the press-fit plane and the installation plane can be filled, the problem that the axial sealing effect caused by deformation of the upper cover and the lower cover is weakened is effectively solved, the sealing effect is enhanced, meanwhile, if the sealing gasket is small in defect, the missing part is filled through the characteristic of strong deformation capability, the sealing effect is guaranteed, and the service life is prolonged.

Further, the lower cover is provided with a limiting convex rib on the inner side of the installation plane, the side face of the inner ring of the sealing gasket is propped against the limiting convex rib to limit, and the sealing gasket deforms radially outwards under the clamping of the press-fit plane and the installation plane. By adopting the technical scheme, if the sealing gasket deforms inwards, the diameter of the inner ring of the sealing gasket is reduced, the materials forming the sealing gasket are easy to extrude mutually to cause the thickness of the inner ring to be increased, the thickness of the sealing gasket is uneven, the bonding degree between the sealing gasket and the press-fit plane and between the sealing gasket and the mounting plane can be influenced, the sealing gasket is designed to deform radially outwards, the whole thickness of the deformed sealing gasket can be kept uniform as much as possible, and the sealing effect is enhanced.

Further, the thickness of the sealing gasket is t, and the height h of the crest bulge of the upper wavy surface is less than or equal to 1/2t. By adopting the technical scheme, the upper wavy surface can be completely flattened when being pressed by the pressing force, and if the height h of the crest bulge is larger than 1/2t, the upper wavy surface and the lower wavy surface can be flattened only by needing larger deformation space when the upper cover and the lower cover press the sealing gasket, so that the sealing gasket is not beneficial to being uniformly deformed.

Further, the thickness of the sealing gasket is t, the upper wavy surface is provided with at least two wave crests, and the space S between two adjacent wave crests meets that S is more than or equal to 2t. By adopting the technical scheme, when the sealing gasket is extruded, each part can be pressed and deformed more quickly by the design of the wave crests, and a plurality of annular sealing rib structures can be formed simultaneously, so that a multiple sealing effect is achieved; if S is less than 2t, the two peaks are caused to collide with each other under compression deformation, resulting in uneven deformation of the gasket.

Further, the inner ring edge of the upper wavy surface is positioned on the inner side of the inner ring edge of the press-fit plane. By adopting the technical scheme, the wave crest of the upper wave surface can be positioned at the place where the press-fit plane can be pressed, so that the sealing gasket can be more rapidly extended and deformed after being pressed.

Further, the press-fit plane is provided with a press rib protruding downwards, and the press rib is pressed against the upper wavy surface. By adopting the technical scheme, when the upper cover is fixedly connected with the lower cover, the pressing rib is propped against the upper wavy surface, so that the sealing gasket can be radially positioned.

Further, the lower surface of the sealing gasket is provided with a lower plane positioned on the inner side of the lower wavy surface, and the lower plane is attached to the installation plane. By adopting the technical scheme, the lower plane is attached to the installation plane, so that the sealing gasket can be accurately positioned during assembly.

Further, the upper cover is provided with a spigot surface on the outer peripheral side of the press-fit plane, the spigot surface is matched with the outer peripheral side of the flanging, the outer peripheral side of the sealing gasket is provided with a sealing lip, and the sealing gasket deforms radially outwards under the clamping of the press-fit plane and the installation plane, so that the sealing lip fills an assembly gap between the spigot surface and the outer peripheral side of the flanging. By adopting the technical scheme, the sealing performance between the upper cover and the lower cover is improved by the design of the sealing lip.

Further, the thickness of the sealing gasket is t, the width of an assembly gap between the spigot surface and the peripheral side surface of the flanging is d, and the thickness b of the sealing lip is smaller than or equal to d and smaller than or equal to 1/2t; or the width of the assembly gap between the spigot surface and the peripheral side surface of the flanging is d, the thickness of the flanging is e, and the length c of the sealing lip is less than or equal to d and less than or equal to 1/2e. By adopting the technical scheme, the thickness b of the sealing lip is larger than or equal to the width d of the assembly gap, so that the sealing lip can completely fill the assembly gap, good tightness is ensured to be obtained, meanwhile, the thickness b of the sealing lip is smaller than or equal to 1/2t, the sealing lip can be conveniently and uniformly deformed into the assembly gap, and if b is larger than 1/2t, the thickness of the sealing lip is excessively large, so that the assembly gap is difficult to be uniformly filled; the length c of the sealing lip is larger than or equal to the width d of the assembly gap, the sealing lip can prop against the spigot surface from the beginning, and the sealing lip is guided by the spigot surface along with deformation of the sealing gasket, so that the sealing lip gradually stretches into the assembly gap, otherwise, if the length c of the sealing lip is smaller than the width d of the assembly gap, the assembly gap cannot be smoothly filled to lose sealing effect, meanwhile, the length c of the sealing lip is smaller than or equal to 1/2e, and in order to enable the sealing lip to uniformly deform, if c is larger than 1/2e, the sealing lip is overlong, partial extrusion is not facilitated due to deformation conduction, and meanwhile, a plurality of parts react to the outer ring side of the sealing gasket after the sealing lip is filled in the assembly gap, so that deformation results of the outer ring side of the sealing gasket are affected.

Further, the sealing lip is arranged at the bottom end of the peripheral side surface of the sealing gasket; or a deformation guide groove is arranged between the lower side surface of the sealing lip and the outer peripheral side surface of the sealing gasket; or the sealing lips are arranged in two and distributed up and down. By adopting the technical scheme, the sealing lip is arranged at the bottom end of the peripheral side surface of the sealing gasket, so that the sealing lip can conveniently extend into an assembly gap between the spigot surface and the peripheral side surface of the flanging under the guidance of the spigot surface; a deformation guide groove is arranged between the lower side surface of the sealing lip and the peripheral side surface of the sealing gasket, and can guide the deformation direction of the lip rib, so that the deformation of the sealing lip can conveniently extend into an assembly gap between the spigot surface and the peripheral side surface of the flanging; the sealing lips are arranged in two and distributed up and down, and the design of the upper and lower two can enable the filling of the assembly gap between the spigot surface and the peripheral side surface of the flanging to be more uniform, and the sealing effect is better.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic cross-sectional view of a handpiece of a soymilk machine of the present utility model;

FIG. 2 is an enlarged schematic view of the portion I of FIG. 1;

FIG. 3 is a schematic cross-sectional view of a gasket in a soymilk machine according to the utility model;

FIG. 4 is a schematic view of a deformation guide groove provided in a gasket of a soymilk machine according to the present utility model;

fig. 5 is a schematic view showing two sealing lips in the soymilk machine according to the utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments.

The terms "first," "second," and the like in the description and in the claims, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order, and do not necessarily indicate a "first" even if a "second" is used before a certain feature. It should be understood that in the present utility model, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. It should be understood that in the present utility model, "plurality" means two or more. "and/or" is merely an association relationship describing an association object, meaning that three relationships may exist, for example, X and/or Y may represent: x alone, X and Y together, and Y alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. "comprising X, Y and Z", "comprising X, Y, Z" means that all three of X, Y, Z comprise, "comprising X, Y or Z" means that one of the three comprises X, Y, Z, and "comprising X, Y and/or Z" means that any one or any two or three of the three comprise X, Y, Z.

The technical scheme of the utility model is described in detail below by specific examples. The following specific embodiments may be combined with or replaced with each other according to actual situations, and the same or similar concepts or processes may not be described in detail in some embodiments.

Embodiment one:

as shown in fig. 1 to 3, the utility model provides a soymilk machine, which comprises a machine head and a cup body, wherein the machine head comprises an upper cover 1 and a lower cover 2, the upper cover 1 is provided with a press-fit plane 11, the top of the lower cover 2 is provided with an outwards extending flange 201, the upper surface of the flange 201 is provided with a mounting plane 203, a sealing gasket 3 is arranged on the mounting plane 203, the upper surface of the sealing gasket 3 is provided with an inwards outwards extending upper wavy surface 301, the lower surface of the sealing gasket 3 is provided with an inwards outwards extending lower wavy surface 302, the crest of the upper wavy surface 301 is opposite to the crest of the lower wavy surface 302, the trough of the upper wavy surface 301 is opposite to the trough of the lower wavy surface 302, and the press-fit plane 11 and the mounting plane 203 clamp the sealing gasket 3 to realize sealing.

According to the utility model, the structure of the wavy surface is arranged on the upper surface and the lower surface of the sealing gasket, so that the sealing gasket can obtain better deformation capacity, when the upper cover is fixedly connected with the lower cover, the pressing plane and the mounting plane clamp the sealing gasket, so that the upper wavy surface and the lower wavy surface deform in a plane structure, stronger reaction force can be generated by the upper wavy surface and the lower wavy surface in turn, the wave crest of the upper wavy surface can keep contact with the pressing plane, the wave trough of the lower wavy surface keeps contact with the mounting plane, and the contact area between the upper wavy surface and the pressing plane and between the lower wavy surface and the mounting plane is increased along with the increase of deformation, the better understanding state is that the upper wavy surface becomes a plane and is jointed with the pressing plane, the lower wavy surface becomes a plane and is jointed with the mounting plane, and a reliable and stable sealing effect is obtained, even if the partial stress of the sealing gasket is uneven, the contact area between the upper wavy surface and the pressing plane and the mounting plane is only changed, and the contact relation between the lower wavy surface and the mounting plane is not changed, and the sealing failure is avoided; the sealing gasket is of an annular structure, the upper wavy surface and the lower wavy surface extend from inside to outside, and if the upper wavy surface and the lower wavy surface are not completely formed into a planar structure, the wave crest of the upper wavy surface and the wave trough of the lower wavy surface form an annular sealing rib structure, so that a multiple sealing effect is formed; after the sealing gasket is extruded, the sealing gasket radially extends outwards, a gap area between the press-fit plane and the installation plane can be filled, the problem that the axial sealing effect caused by deformation of the upper cover and the lower cover is weakened is effectively solved, the sealing effect is enhanced, meanwhile, if the sealing gasket is small in defect, the missing part is filled through the characteristic of strong deformation capability, the sealing effect is guaranteed, and the service life is prolonged.

In one embodiment, the lower cover 2 is of a double-layer structure, and is generally divided into a metal lower cover 21 and a plastic lower cover 22, wherein the metal lower cover 21 is sleeved on the outer side of the plastic lower cover 22, and the metal lower cover 21 and the plastic lower cover 22 can be installed and fixed, wherein a sealing ring 23 can be arranged at the top end of the metal lower cover 21 to prevent water vapor from entering an installation gap 24 between the metal lower cover 21 and the plastic lower cover 22, and the metal lower cover 21 and the plastic lower cover 22 can be integrally formed, so that no installation gap exists between the metal lower cover 21 and the plastic lower cover. The top of the plastic lower cover extends outward to form a flange 201. In another embodiment, the lower cover 2 may be a single-layer structure, for example, only a metal lower cover, and the top of the metal lower cover extends outwards to form the flange 201.

In order to control the press-fitting plane 11 of the upper cover 1 and the mounting plane 203 of the lower cover 2 to squeeze the gasket 3, the gasket 3 is controlled to be filled towards the outer gap 4 in the extending direction after being squeezed, the lower cover is provided with a convex limit rib 202 on the inner side of the mounting plane 203, the inner ring side surface of the gasket 3 is abutted against the limit rib 202, the gasket 3 is squeezed when the upper cover 1 is connected with the lower cover 2, the gasket 3 extends towards two sides, but the limit rib 202 prevents the gasket 3 from extending towards the inner side due to the inner ring side surface of the gasket 3 being abutted against the limit rib 202, and the gasket 3 is controlled to extend towards the outer side only. If the sealing gasket deforms inwards, the diameter of the inner ring of the sealing gasket is reduced, the material forming the sealing gasket is easy to extrude mutually to cause the thickness of the inner ring to be increased, so that the thickness of the sealing gasket becomes uneven, the bonding degree between the sealing gasket and the press-fit plane and between the sealing gasket and the mounting plane can be influenced, the sealing gasket is designed to deform radially outwards, the whole thickness of the deformed sealing gasket can be kept uniform as much as possible, and the sealing effect is enhanced.

In order to solve the problem that the sealing gasket 3 is not flat due to the fact that the upper wavy surface 301 is too high, the thickness of the sealing gasket 3 is set to be t, and the height h of the crest bulge of the upper wavy surface 301 of the sealing gasket 3 is h=1/2 t; it will be appreciated that h may also be less than 1/2t. The upper wavy surface can be completely flattened when the upper wavy surface is pressed by the pressing force, and if the height h of the crest bulge is larger than 1/2t, the upper wavy surface and the lower wavy surface can be flattened only by needing larger deformation space when the upper cover and the lower cover press the sealing gasket, so that uniform deformation of the sealing gasket is not facilitated.

In order to solve the problem that the sealing gasket 3 can quickly respond and does not collide when being pressed, the upper wavy surface 301 of the sealing gasket 3 is provided with two wave crests, and meanwhile, the distance a between the two convex wave crests of the upper wavy surface 301 needs to meet a=2t; it will be appreciated that A may also be greater than 1/2t. The design of multiple wave crests can enable each part to be pressed and deformed more quickly when the sealing gasket is extruded, and meanwhile, multiple annular sealing rib structures can be formed, so that multiple sealing effects are achieved; if S is less than 2t, the two peaks are caused to collide with each other under compression deformation, resulting in uneven deformation of the gasket. The number of peaks can be increased according to actual needs.

In order to meet the requirement that the peaks of the upper wavy surface 301 can be pressed to enable the sealing gasket 3 to extend outwards to deform rapidly, the inner ring edge of the upper wavy surface 301 is located on the inner side of the inner ring edge of the press-fit plane 11, when the press-fit plane 11 presses the peaks of the upper wavy surface 301, all the peaks can be covered, and all the peaks transmit the applied pressure to the whole sealing gasket 3, so that the sealing gasket extends outwards to deform rapidly.

In order to prevent the gasket from shifting during the assembly of the machine head, the press-fitting plane 11 is provided with a downward protruding press rib, and when the press-fitting plane 11 presses the gasket 3 downward with the mounting plane 203, the protruding press rib abuts against the upper wavy surface 301 of the gasket 3, so that the gasket can be radially positioned.

In order to improve the assembly efficiency of the sealing gasket 3, the lower surface of the sealing gasket 3 is provided with a lower plane 305 positioned on the inner side of the lower wavy surface 302, and the lower plane 305 is attached to the mounting plane 203, so that the sealing gasket can be accurately positioned during assembly.

In order to accommodate the flange, the upper cover 1 is provided with a spigot surface 101 on the outer peripheral side of the press-fit plane 11, the spigot surface 101 is matched with the outer peripheral side of the flange 201, and an assembly gap 4 extending up and down is formed after the spigot surface 101 is matched with the outer peripheral surface of the flange 201, so that a sealing lip 303 is arranged on the outer peripheral side of the sealing gasket 3, when the sealing gasket 3 is extruded by the press-fit plane 11 and the installation plane 203, the sealing gasket 3 extends outwards, the sealing lip 303 is guided by the spigot surface 101 to move into the assembly gap 4, and the assembly gap 4 is filled, so that the tightness between the upper cover and the lower cover is improved.

It will be appreciated that in order to ensure that good sealing performance is achieved after the sealing lip 303 fills the fitting gap 4, some requirements may be placed on the thickness and length of the sealing lip 303, for example, in one embodiment, the width of the fitting gap 4 between the spigot surface 101 and the peripheral side surface of the flange 201 is d, the thickness b of the sealing lip 303 is d.ltoreq.b.ltoreq.1/2 t, and the thickness b of the sealing lip is equal to or greater than the width d of the fitting gap, so that the sealing lip can completely fill the fitting gap, ensuring good sealing performance, while the thickness b of the sealing lip is less than or equal to 1/2t, facilitating uniform deformation of the sealing lip into the fitting gap, and if b is greater than 1/2t, resulting in excessive thickness of the sealing lip that makes it difficult to uniformly fill the fitting gap. In one embodiment, the thickness of the flange 201 is e and the length c of the sealing lip 303 satisfies d.ltoreq.c.ltoreq.1/2 e. The length c of the sealing lip is larger than or equal to the width d of the assembly gap, the sealing lip can prop against the spigot surface from the beginning, and the sealing lip is guided by the spigot surface along with deformation of the sealing gasket, so that the sealing lip gradually stretches into the assembly gap, otherwise, if the length c of the sealing lip is smaller than the width d of the assembly gap, the assembly gap cannot be smoothly filled to lose sealing effect, meanwhile, the length c of the sealing lip is smaller than or equal to 1/2e, and in order to enable the sealing lip to uniformly deform, if c is larger than 1/2e, the sealing lip is overlong, partial extrusion is not facilitated due to deformation conduction, and meanwhile, a plurality of parts react to the outer ring side of the sealing gasket after the sealing lip is filled in the assembly gap, so that deformation results of the outer ring side of the sealing gasket are affected.

In this embodiment, the sealing lip is provided at the bottom end of the peripheral side face of the gasket, so that the sealing lip extends into the fitting gap between the spigot face and the peripheral side face of the flange under the guide of the spigot face.

Embodiment two:

as shown in fig. 4, in the first embodiment, a deformation guide groove 304 is provided between the lower side surface of the seal lip and the outer peripheral side surface of the seal gasket, and when the press-fitting plane 11 of the upper cover 1 and the mounting plane 203 of the lower cover 2 press the seal gasket 3, the seal gasket 3 extends outward, the seal lip 303 also moves outward, and the seal lip 303 is guided to fill the fitting gap 4 between the spigot surface 101 and the outer peripheral side surface of the flange 201 due to the presence of the deformation guide groove 304, so as to achieve the sealing effect.

Embodiment III:

as shown in fig. 5, the sealing lip 303 is provided with two sealing lips, and the design of vertically distributing the two sealing lips can make the assembly gap between the spigot surface and the peripheral side surface of the flanging more uniform, so as to achieve a better sealing effect.

In addition to the preferred embodiments described above, other embodiments of the present utility model are also contemplated as falling within the scope of the claimed utility model, as well as all other embodiments that may be made by one of ordinary skill in the art without making any inventive effort based on the embodiments of the present utility model.

Claims (10)

1. The utility model provides a soybean milk machine, includes upper cover and lower cover, and the upper cover has the pressure equipment plane, and the top of lower cover is equipped with the turn-ups of outside extension, and the upper surface of turn-ups has the mounting plane, is equipped with sealed pad on the mounting plane, its characterized in that, the upper surface of sealed pad is equipped with the last wave face that extends from inside to outside, and the lower surface of sealed pad is equipped with the lower wave face that extends from inside to outside, and the crest of going up the wave face is relative with the crest of wave face down, and the trough of going up the wave face is relative with the trough of wave face down, and pressure equipment plane and mounting plane centre gripping are sealed to be filled up and are realized sealedly.

2. The soymilk machine according to claim 1, wherein the lower cover is provided with a limiting convex rib on the inner side of the installation plane, the inner ring side surface of the sealing gasket is propped against the limiting convex rib to limit, and the sealing gasket deforms radially outwards under the clamping of the press-fit plane and the installation plane.

3. The soymilk machine according to claim 1, wherein the thickness of the sealing gasket is t, and the height h of the crest bulge of the upper wavy surface is less than or equal to 1/2t.

4. The soymilk machine according to claim 1, wherein the sealing gasket has a thickness t, the upper wavy surface has at least two wave crests, and the distance A between two adjacent wave crests satisfies A not less than 2t.

5. The soymilk machine of claim 1, wherein the inner ring edge of the upper wavy surface is positioned inside the inner ring edge of the press-fit plane.

6. The soymilk machine according to claim 1, wherein the press-fit plane is provided with a downward protruding press rib, and the press rib is pressed against the upper wavy surface.

7. The soymilk machine according to claim 1, wherein the lower surface of the sealing pad is provided with a lower plane positioned on the inner side of the lower wavy surface, and the lower plane is attached to the mounting plane.

8. The soymilk machine according to claim 1, wherein the upper cover is provided with a spigot surface at the outer peripheral side of the press-fit plane, the spigot surface is matched with the outer peripheral side of the flanging, the outer peripheral side of the sealing gasket is provided with a sealing lip, and the sealing gasket deforms radially outwards under the clamping of the press-fit plane and the installation plane, so that the sealing lip fills an assembly gap between the spigot surface and the outer peripheral side of the flanging.

9. The soymilk machine according to claim 8, wherein the sealing gasket has a thickness t, the width of the assembly gap between the spigot surface and the peripheral side surface of the flanging is d, and the thickness b of the sealing lip satisfies d.ltoreq.b.ltoreq.1/2 t; or the width of the assembly gap between the spigot surface and the peripheral side surface of the flanging is d, the thickness of the flanging is e, and the length c of the sealing lip is less than or equal to d and less than or equal to 1/2e.

10. The soymilk machine according to claim 8, wherein said sealing lip is provided at a bottom end of an outer peripheral side surface of the gasket; or a deformation guide groove is arranged between the lower side surface of the sealing lip and the outer peripheral side surface of the sealing gasket; or the sealing lips are arranged in two and distributed up and down.