Splash-proof food processing machine

Abstract

The present invention relates to small kitchen appliances, in particular to a splash-proof food processor, comprising a crushing cup and a cover body mounted above the crushing cup, wherein the crushing cup and the cover body enclose a closed pulping chamber, wherein a crushing blade for whipping materials is arranged in the crushing cup, and wherein the food processor further comprises a heat dissipation structure for dissipating heat from the crushing cup, wherein during the process of the crushing blade whipping materials in the pulping chamber, the heat dissipation structure cools and depressurizes the crushing cup to keep the pressure p1 in the pulping chamber no greater than the atmospheric pressure p. In the process of crushing and pulping by using the above-mentioned food processor, the pressure in the pulping chamber will not increase, and the slurry can be effectively prevented from splashing or seeping out of the pulping chamber.

Description

Technical Field

[0001] The invention relates to small kitchen appliances, in particular to a splash-proof food processor. Background Art

[0002] Existing frame-type soymilk machines generally include a grinding cup and a cup cover mounted on the grinding cup, and the cup cover is provided with air holes, and the pulping chamber formed by the grinding cup and the cup cover is a non-sealed structure. During the pulping process, the heat of the pulp can be automatically discharged to the atmosphere through the air holes on the cup cover, thereby preventing the risk of the pulp overflowing.

[0003] As consumers pursue higher and higher quality of soybean milk, a pressure soybean milk machine has been developed, wherein a sealing component is provided between the cup cover and the crushing cup, and the cup cover of the soybean milk machine has no air vents, and the pulping chamber formed by the crushing cup and the cup cover is a closed pressure vessel. However, when the applicant studied the pressure soybean milk machine, he found that the pressure soybean milk machine has the following problems: in the process of pulping, the motor drives the crushing blade to cut the material, and the crushing blade and the material constantly collide and rub, thereby generating a large amount of heat. Since the slurry temperature is low, the generated heat can heat the slurry synchronously. At the same time, the motor will also generate a large amount of heat during operation, and the heat will be transferred to the slurry through the rotating shaft, thereby also heating the slurry. Especially when making thick soybean milk, more heat is generated for heating the slurry. Since the pulping chamber is a closed structure, a large amount of heat cannot be discharged from the outside of the pulping chamber, so that part of the slurry will generate steam after being heated and fill the entire pulping chamber, and the air in the pulping chamber will also expand after being heated, causing the pressure in the pulping chamber to increase continuously to greater than the atmospheric pressure. On the one hand, the increased pressure in the pulping chamber will push the cup cover to bulge outward, causing the sealing structure between the cup cover and the crushing cup to fail. During the pulping process of the crushing blade, the slurry in the pulping chamber will seep out or splash out of the crushing cup through the failed sealing structure between the cup cover and the crushing cup. In severe cases, there is a risk of overflow. Summary of the invention

[0004] The object to be achieved by the present invention is to provide a splash-proof food processing machine which can prevent the pressure in the pulping chamber from increasing during the crushing and pulping process and can effectively prevent the pulp from splashing or seeping out of the pulping chamber.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a splash-proof food processor, comprising a crushing cup and a cover body installed above the crushing cup, the crushing cup and the cover body together form a closed pulping chamber, the crushing cup is provided with a crushing blade for beating the material, characterized in that: the food processor also includes a heat dissipation structure for dissipating the heat of the crushing cup, and when the crushing blade beats the material in the pulping chamber, the heat dissipation structure cools and reduces the pressure of the crushing cup to keep the pressure p1 in the pulping chamber not greater than the atmospheric pressure p.

[0006] Furthermore, p1 / p=0.4-0.99.

[0007] Furthermore, the pulverizing cup is a metal cup body, and the heat dissipation structure includes heat dissipation fins which are arranged on the peripheral wall of the pulverizing cup and protrude outward, and the heat dissipation fins extend along the axial direction or circumferential direction of the pulverizing cup.

[0008] Furthermore, there are a plurality of heat dissipation fins, which are arranged at intervals around the peripheral wall of the grinding cup.

[0009] Furthermore, the protrusion height of any heat dissipation fin is 5 to 15 mm;

[0010] Alternatively, the thickness of any heat dissipation fin is not greater than 2 mm;

[0011] Alternatively, the interval between adjacent heat dissipation fins is 6 to 15 mm.

[0012] Furthermore, the heat dissipation fins extend in a spiral along the circumference of the grinding cup;

[0013] Alternatively, the heat dissipation fins are integrally formed on the grinding cup.

[0014] Further, the heat dissipation structure includes a fan for blowing air to cool the outer wall of the grinding cup;

[0015] Alternatively, the heat dissipation structure includes a semiconductor refrigeration sheet that is closely attached to the outer wall of the grinding cup;

[0016] Alternatively, the cover body and the grinding cup are sealed by a sealing structure.

[0017] Furthermore, the cover body includes a cover base, a glass cover plate and a cover shell fixed on the cover base, the glass cover plate is clamped and fixed by the cover shell and the cover base, and a first seal is provided between the glass cover plate and the cover shell, and a second seal is provided between the glass cover plate and the cover base.

[0018] Furthermore, the first sealing member and the second sealing member are integrally formed;

[0019] Alternatively, a third sealing member is provided between the cover base and the grinding cup, wherein the first sealing member, the second sealing member and the third sealing member are integrally formed.

[0020] Furthermore, the food processor also includes a body, the grinding cup is installed in the body, a motor is installed on the outside of the grinding cup, a rotating shaft driven by the motor penetrates the wall of the grinding cup and extends into the grinding cup, the grinding blade is installed at the end of the rotating shaft, and a pulp discharge assembly is also installed on the outside of the bottom of the grinding cup;

[0021] Alternatively, the cover is a head mounted with a motor, a rotating shaft driven by the motor passes through the head and extends into the crushing cup, and a crushing blade is mounted at the end of the rotating shaft;

[0022] Alternatively, the food processor further comprises a base on which a motor is mounted, the crushing cup is detachably mounted on the base, a rotating shaft driven by the motor penetrates the bottom wall of the crushing cup and extends into the crushing cup, and the crushing blade is mounted on the end of the rotating shaft.

[0023] The food processing machine of the present invention has a closed pulping chamber. During the pulping process, on the one hand, the heat generated by the operation of the motor will be transferred to the pulping chamber through the rotating shaft to heat the slurry. On the other hand, during the high-speed rotation of the crushing blade, it will also violently collide and rub with the material, and will also generate a large amount of heat for heating the slurry, especially when making thick slurry. Therefore, a part of the liquid in the pulping chamber will be heated into steam and fill the pulping chamber, thereby increasing the pressure in the pulping chamber. At the same time, the steam in the pulping chamber will push the cover body to bulge outward, thereby causing the air in the pulping chamber to be squeezed out of the pulping chamber by the steam through the sealing structure of the cover body and the crushing cup, so that the remaining space in the pulping chamber is filled with steam.

[0024] The food processor of the present invention also includes a heat dissipation structure, which can dissipate heat from the crushing cup. Therefore, when the crushing blade beats the material in the pulping chamber, the steam in the crushing cup will liquefy and condense into water droplets after encountering the cold inner wall of the crushing cup, thereby reducing the amount of steam in the crushing cup and gradually reducing the pressure in the pulping chamber. When the pressure p1 in the pulping chamber is kept no greater than the atmospheric pressure p, it can effectively ensure that the cover body and the crushing cup are in a sealed state, and the sealing structure between the cover body and the crushing cup will not fail. Even if the crushing blade beats the material, the slurry is not likely to splash out from the sealing structure between the cover body and the crushing cup, or seep out of the outside of the crushing cup. In addition, it can also effectively prevent the slurry from overflowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the accompanying drawings:

[0026] Figure 1It is a structural schematic diagram of a food processing machine according to an embodiment of the present invention;

[0027] Figure 2 for Figure 1 Schematic diagram of the sealing structure between the middle crushing cup and the cup cover;

[0028] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0029] Figure 4 for Figure 1 Schematic diagram of the structure of the medium crushing cup. DETAILED DESCRIPTION

[0030] Example:

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 The figure is a schematic diagram of a structure of a food processor of the present invention. A food processor comprises a grinding cup 1 and a cover 2 mounted on the grinding cup 1, wherein the grinding cup 1 and the cover 2 are sealed by a sealing structure, and the grinding cup 1 and the cover 2 are enclosed to form a closed pulping chamber 10, wherein a grinding blade 3 for beating materials is arranged in the grinding cup 1, and the food processor further comprises a heat dissipation structure for dissipating heat from the grinding cup 1.

[0032] The food processor in this embodiment is a frame-type soymilk machine, including a body 100, the grinding cup 1 is installed in the body 100, a motor 11 is installed on the outer side of the bottom of the grinding cup 1, a rotating shaft 12 driven by the motor 11 penetrates the wall of the grinding cup 1 and extends into the grinding cup 1, the grinding blade 3 is installed at the end of the rotating shaft 12, and a pulp discharge assembly 13 is also installed on the outer side of the bottom of the grinding cup 1, and a pulp receiving cup (not marked in the figure) is arranged below the pulp discharge assembly 13, and the pulp in the grinding cup 1 can be discharged into the pulp receiving cup through the pulp discharge assembly 13. At the same time, in this embodiment, the grinding cup 1 is a metal cup body, and the heat dissipation structure includes heat dissipation fins 4 that are integrally formed on the peripheral wall of the grinding cup 1 and protrude outward, and the heat dissipation fins 4 extend along the circumference of the grinding cup to form a ring. Among them, there are multiple heat dissipation fins 4, and the multiple heat dissipation fins 4 are arranged from bottom to top around the peripheral wall of the grinding cup 1.

[0033] Meanwhile, in this embodiment, the cover body 2 is sealed and mounted on the grinding cup 1 by means of a screw-on method, and the cover body 2 includes a cover base 21, a glass cover plate 22, and a cover shell 23 fixed on the cover base 21, the glass cover plate 22 is clamped and fixed by the cover shell 23 and the cover base 21, and a first sealing member 24 is provided between the glass cover plate 22 and the cover shell 23, and a second sealing member 25 is provided between the glass cover plate 22 and the cover base 21. In this embodiment, the cover body 2 is fixed by screwing the cover base 21 and the edge of the grinding cup 1, and the sealing structure is a third sealing member 26 provided between the cover base 21 and the grinding cup 1 for sealing the pulping chamber 10. Among them, for this embodiment, the first sealing member 24, the second sealing member 25 and the third sealing member 26 are formed into one body by injection molding.

[0034] For this embodiment, during the pulping process, the heat dissipation fins 4 continuously cool and reduce the pressure of the crushing cup 1, so that when the crushing blade 3 beats the material in the pulping chamber 10, the pressure p1 in the pulping chamber is always kept no greater than the atmospheric pressure p.

[0035] For the food processing machine of the present embodiment, since the pulping chamber is a closed structure, the food processing machine can automatically perform pressure pulping in the pulping chamber. During the pulping process, on the one hand, the heat generated by the operation of the motor will be transferred to the pulping chamber through the rotating shaft to heat the slurry. On the other hand, the crushing blade will also violently collide and rub with the material during the high-speed rotation, and will also generate a large amount of heat for heating the slurry. Therefore, a part of the liquid in the pulping chamber will be heated into steam and fill the pulping chamber, thereby increasing the pressure in the pulping chamber. At the same time, the steam in the pulping chamber will push the cover body to bulge outward, causing the air in the pulping chamber to be squeezed out of the pulping chamber by the steam through the sealing structure of the cover body and the crushing cup, causing the remaining space in the pulping chamber to be filled with steam.

[0036] At the same time, the food processor of this embodiment also includes a heat dissipation structure, which can dissipate heat from the crushing cup. Therefore, when the crushing blade beats the material in the pulping chamber, the steam in the crushing cup will liquefy and condense into water droplets after encountering the cold inner wall of the crushing cup, so that the amount of steam in the crushing cup can be reduced, and the pressure in the pulping chamber will gradually decrease. When the pressure p1 in the pulping chamber is kept no greater than the atmospheric pressure p, it can effectively ensure that the cover body and the crushing cup are in a sealed state, and the sealing structure between the cover body and the crushing cup will not fail. Even if the crushing blade beats the material, the slurry is not easy to splash out from the sealing structure between the cover body and the crushing cup, or seep out of the outside of the crushing cup. In addition, it can also effectively prevent the slurry from overflowing.

[0037] It should be noted that, for this embodiment, the crushing cup is an aluminum cup body, and the heat dissipation fins are integrally formed with the aluminum cup body by casting to ensure that the heat dissipation fins are tightly connected to the aluminum cup body and have good thermal conductivity. Of course, the heat dissipation fins can be connected to the crushing cup by other fixing methods, as long as the two can be tightly connected to achieve good thermal conductivity. For this embodiment, the heat dissipation fins are arranged in a ring shape around the outer wall of the crushing cup. Of course, the heat dissipation fins can also be extended along the axial direction of the crushing cup, or the heat dissipation fins are extended in a spiral along the circumference of the crushing cup. It should also be noted that in order to realize the casting of the heat dissipation fins and ensure good thermal conductivity, in this embodiment, the protrusion height of the heat dissipation operation is generally set to 5 to 15 mm, and the thickness of the heat dissipation fins is not more than 2 mm. Among them, in this embodiment, the interval between two adjacent heat dissipation fins is generally set to 6 to 15 mm.

[0038] It should also be noted that, for this embodiment, the heat dissipation fins can be used to keep the pressure p1 in the pulping chamber no greater than the atmospheric pressure. In addition, the inventors have found through research that when p1 is lower than the atmospheric pressure, it is less likely for the slurry to splash when the crushing blade beats the material. Therefore, when p1 is less than p, the cover bulges from the outside to the inside, so that the cover presses the seal against the edge of the crushing cup, and the sealing performance between the cover and the crushing cup is better, and it is less likely for the slurry to splash. In addition, the inventors have found through research that for the food processor of this embodiment, although the heat dissipation structure can dissipate the heat in the pulping chamber, it is basically difficult to keep p1 less than 0.4p. Therefore, for this embodiment, it is generally sufficient to keep p1 / p=0.4~0.99. Among them, p1 is preferably 0.8p~0.9p.

[0039] The heat dissipation structure of this embodiment is not limited to the heat dissipation fins of this embodiment. The heat dissipation structure may also include a fan for blowing air to cool the outer wall of the grinding cup, or a semiconductor cooling sheet close to the outer wall of the grinding cup. Of course, the matching of the heat dissipation structure and the heat dissipation effect of the food processor of this embodiment still needs to be determined by researchers through continuous research and testing.

[0040] It should also be noted that, for the food processor of this embodiment, the pulping chamber is a pressure vessel, and a one-way exhaust valve can be provided on the pulping chamber. When the steam pressure in the pulping chamber reaches a certain value, part of the air can be discharged from the pulping chamber through the exhaust valve. Therefore, in this embodiment, the steam-driven air discharge is not limited to the discharge through the sealing structure between the cover and the grinding cup in this embodiment.

[0041] In addition, the food processor of the present invention is not limited to a frame soybean milk machine, wherein the cover body can also be a head with a motor installed, the rotating shaft driven by the motor passes through the head and extends into the grinding cup, and the grinding blade is installed at the end of the rotating shaft. Alternatively, the food processor also includes a base with a motor installed, the grinding cup is detachably installed on the base, the rotating shaft driven by the motor passes through the bottom wall of the grinding cup and extends into the grinding cup, and the grinding blade is installed at the end of the rotating shaft, that is, a wall-breaking food processor with a motor under it.

[0042] Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A splash-proof food processor, comprising a grinding cup and a cover body mounted on the grinding cup, wherein the grinding cup and the cover body together form a closed pulping chamber, and a grinding blade for beating materials is arranged in the grinding cup, characterized in that: The food processor also includes a heat dissipation structure for dissipating heat from the crushing cup. When the crushing blade beats the material in the pulping chamber, the heat dissipation structure cools and depressurizes the crushing cup so that the pressure p1 in the pulping chamber satisfies the relationship between the atmospheric pressure p: p1 / p=0.4~0.

99.

2. The splash-proof food processor according to claim 1, characterized in that: The pulverizing cup is a metal cup body, and the heat dissipation structure comprises heat dissipation fins which are arranged on the peripheral wall of the pulverizing cup and protrude outward, and the heat dissipation fins extend along the axial direction or circumferential direction of the pulverizing cup.

3. The splash-proof food processor according to claim 2, characterized in that: The heat dissipation fins are multiple and are arranged at intervals around the peripheral wall of the grinding cup.

4. The splash-proof food processor according to claim 3, characterized in that: The protrusion height of any heat sink fin is 5~15mm; Alternatively, the thickness of any heat dissipation fin is not greater than 2 mm; Alternatively, the interval between adjacent heat dissipation fins is 6 to 15 mm.

5. The splash-proof food processor according to claim 2, characterized in that: The heat dissipation fins extend in a spiral along the circumference of the grinding cup; Alternatively, the heat dissipation fins are integrally formed on the grinding cup.

6. The splash-proof food processor according to claim 1, characterized in that: The heat dissipation structure includes a fan for blowing air to cool the outer wall of the grinding cup; Alternatively, the heat dissipation structure includes a semiconductor refrigeration sheet that is closely attached to the outer wall of the grinding cup; Alternatively, the cover body and the grinding cup are sealed by a sealing structure.

7. The splash-proof food processor according to claim 1, characterized in that: The cover body comprises a cover base, a glass cover plate and a cover shell fixed on the cover base, the glass cover plate is clamped and fixed by the cover shell and the cover base, a first seal is arranged between the glass cover plate and the cover shell, and a second seal is arranged between the glass cover plate and the cover base.

8. The splash-proof food processor according to claim 7, characterized in that: The first sealing member and the second sealing member are integrally formed; Alternatively, a third sealing member is provided between the cover base and the grinding cup, wherein the first sealing member, the second sealing member and the third sealing member are integrally formed.

9. The splash-proof food processor according to claim 1, characterized in that: The food processor also includes a body, the grinding cup is installed in the body, a motor is installed outside the grinding cup, a rotating shaft driven by the motor penetrates the wall of the grinding cup and extends into the grinding cup, the grinding blade is installed at the end of the rotating shaft, and a pulp discharge assembly is also installed outside the bottom of the grinding cup; Alternatively, the cover is a head mounted with a motor, a rotating shaft driven by the motor passes through the head and extends into the crushing cup, and a crushing blade is mounted at the end of the rotating shaft; Alternatively, the food processor further comprises a base on which a motor is mounted, the crushing cup is detachably mounted on the base, a rotating shaft driven by the motor penetrates the bottom wall of the crushing cup and extends into the crushing cup, and the crushing blade is mounted on the end of the rotating shaft.

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