CN109984639B

CN109984639B - Vacuum food crushing and stirring machine

Info

Publication number: CN109984639B
Application number: CN201910353414.5A
Authority: CN
Inventors: 王晓东
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-22
Filing date: 2017-04-05
Publication date: 2022-05-17
Anticipated expiration: 2037-04-05
Also published as: CN107157356B; CN107157356A; CN109984639A; WO2017181838A1

Abstract

The invention relates to a vacuum food crushing and stirring machine, which comprises: the base is internally provided with a cutter motor and a vacuum pump; a motor shaft of the cutter motor extends upwards out of the base, and a first half coupling is arranged at the top end of the motor shaft; the cutter comprises a cutter disc body, a cutter shaft which penetrates through the cutter disc body and extends out of the upper end and the lower end of the cutter shaft respectively is supported on the cutter disc body in a sliding and sealing manner, a cutter is arranged at the upper end of the cutter shaft, and a second half coupling is arranged at the lower end of the cutter shaft; the material cup body is arranged on the cutter head body; the material cup body and the cutter head body are connected in a sealing way to form a material cup assembly; the material cup assembly is arranged on the base, the material cup assembly and the base form a closed coupling cavity, the first half coupling and the second half coupling form a coupling, and the coupling is accommodated in the coupling cavity; the coupling cavity is communicated with a lower air passage, the lower air passage is communicated with an air suction opening of a vacuum pump in the base, and an air exhaust opening of the vacuum pump is communicated with the outside atmosphere directly or through an exhaust pipe. The stirrer can tightly suck the material cup assembly and the machine base by utilizing vacuum negative pressure.

Description

Vacuum food crushing and stirring machine

The application is a divisional application of Chinese patent application with the application number of 201710228269.9, the application date of 2017, 4 and 5, the priority date of 2016, 4 and 22, and the invention name of "vacuum food crushing and stirring machine".

Technical Field

The invention belongs to the technical field of food processors, and particularly relates to a vacuum food crushing stirrer which crushes and/or stirs food under the condition of vacuumizing.

Background

The fine particles of the food are very easy to contact with oxygen in the air to generate enzymatic browning phenomenon in the crushing process, so that the nutrition loss of fruits and vegetables and the taste are changed.

The existing vacuum food processor comprises a machine base and a material cup body, wherein a cutter motor, a vacuum pump and a control circuit board are arranged in the machine base; the material cup body is divided into an inverted material cup and an upper opening material cup, and the port of the inverted material cup is connected with the cutter head body; the upper opening material cup comprises a cup body part and a cup bottom part, a sealing cover is arranged at an upper opening of the cup body part, the cup bottom part is integrally formed by a cutter body, the cutter body and the cup body part or the cup bottom part are of an integral structure or can be in a detachable connection structure, or one part of the cup bottom part is formed by the cutter body, and the cutter body and the cup bottom part are of an integral structure or can be in a detachable connection structure. A cutter shaft is supported on the cutter disc body in a sliding and sealing manner, a cutter is arranged on the cutter shaft, the material cup body and the cutter disc body form a material cup assembly, and a closed crushing cavity for containing food is formed in the inner periphery of the material cup assembly; the material cup assembly (through cup body, cup bottom or cutter head) is arranged on the base and detachably connected with the base, the vacuum pump is arranged in the base, and the vacuum pump is provided with a special motor or a common motor together with a cutter motor for crushing foodstuff.

In the prior art of vacuum food processors, as described in chinese patent CN201220204819.6, "food processor with electric air pump": an air suction pipeline is arranged in a side handle of the material cup with an upper opening and a sealing cover, an air suction port at the upper end of the air suction pipeline is positioned in the material cup and above the liquid level of foodstuff, and an air suction port at the lower end of the air suction pipeline is positioned at the bottom of the material cup; an air suction pipeline of a vacuum pump in the base extends upwards from the base and is in sealing butt joint connection with a lower port of the air suction pipeline on the material cup side handle. This construction has the disadvantage of not being suitable for the inverted cup situation. Especially, when the inverted material cup has no side handle (when the side handle is not arranged, the air exhaust pipe fitting has no place to be installed). In addition, the cup body of the material cup in the prior art must be provided with parts required for air suction, so that the structure of the material cup is complex. Cleaning is also inconvenient.

Disclosure of Invention

In view of the above, the present invention provides an improved vacuum food crushing and stirring machine capable of realizing vacuum pumping, crushing and stirring, wherein a coupling cavity of the machine is in a vacuum negative pressure state during operation, and tightly sucks a material cup assembly and a machine base, so that an upper air passage and a lower air passage can be simply and reliably communicated in a sealing manner, and a screwing device between the material cup body and the machine base is omitted; meanwhile, the material cup assembly extending into the crushing cavity through the cutter head on the upper air path can be applied only by using the material cup body with a common structure, the cup body part of the material cup body is not provided with any air exhaust part, and the material cup body is formed by adopting a common inverted material cup or a common detachable material cup, so that the manufacturing cost is reduced, and the use convenience is improved.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

<1> a vacuum food crushing and stirring machine comprising:

the machine base (1) is internally provided with a cutter motor (2), a vacuum pump (11) and a control circuit board; a motor shaft of the cutter motor (2) extends upwards out of the upper part of the base, and a first half coupling (51) is arranged at the top end of the motor shaft;

the cutter comprises a cutter body (4), wherein a cutter shaft (13) which penetrates through the cutter body and extends out of the upper end and the lower end of the cutter shaft respectively is supported on the cutter body in a sliding and sealing manner, a cutter (6) is arranged at the upper end of the cutter shaft, and a second half coupling (52) matched with the first half coupling (51) is arranged at the lower end of the cutter shaft;

the material cup body is arranged on the cutter head body (4); mainly comprises a material cup body and a cutter head body which are connected in a sealing way to form a material cup assembly,

the inner periphery of the material cup combination body forms a closed crushing cavity (71) for containing food; the cutter (6) is positioned in the crushing cavity (71);

the material cup assembly is arranged on the base and is detachably connected with the base, the material cup assembly is connected with the base in a sealing way so as to form a closed coupling cavity (53),

the first half coupling (51) and the second half coupling (52) are butted with each other to form a coupling (5) when the material cup assembly is in sealing connection with the base, and the coupling (5) is accommodated in the coupling cavity (53);

the coupling cavity (53) is communicated with a lower air passage, the lower air passage is communicated with an air pumping opening of a vacuum pump (11) in the base, and an air exhaust opening of the vacuum pump is communicated with the outside atmosphere directly or through an exhaust pipe.

<2> the vacuum food crushing and stirring machine comprising:

the material cup body is positioned on the cutter head body and is of an integrated structure, a material cup assembly is mainly formed by the material cup body and the cutter head body, and a closed crushing cavity (71) for containing food is formed in the inner periphery of the material cup assembly; the cutter (6) is positioned in the crushing cavity (71);

a cutter shaft (13) which penetrates through the cutter disc body and extends out of the upper end and the lower end of the cutter shaft respectively is supported on the cutter disc body in a sliding and sealing manner, a cutter (6) is arranged at the upper end of the cutter shaft, and a second half coupling (52) matched with the first half coupling (51) is arranged at the lower end of the cutter shaft;

the first half coupling (51) and the second half coupling (52) are butted with each other to form a coupling (5) when the material cup combination is in sealing connection with the base, and the coupling (5) is accommodated in the coupling cavity (53);

the coupling cavity (53) is communicated with a lower air passage, the lower air passage is communicated with an air suction opening of a vacuum pump (11) in the base, and an air exhaust opening of the vacuum pump is communicated with the external atmosphere directly or through an air exhaust pipe.

<3> the vacuum food crushing and stirring machine according to <1> or <2>, the coupling cavity is in a vacuum negative pressure state during operation, and the cup assembly and the machine base are tightly sucked.

<4> the vacuum food crushing and stirring machine according to <1> or <2> above, the cup assembly is placed on the base and detachably connected with the base, the cup assembly is hermetically connected with the base to form a closed coupling cavity (53), and specifically, one of the following structural forms is adopted:

structural form 1.1: the upper part of the machine base extends upwards to form a concave cavity, and the cup body part of the material cup body or the cup bottom part of the material cup body or the cutter head body extends into the concave cavity; the outer edge of the body part of the material cup body, the outer edge of the bottom part of the material cup body or the outer edge of the cutter head body are in sealing connection with the cavity wall of the cavity, the cavity bottom of the cavity or the upper port of the cavity, or the bottom of the body part of the material cup body, the bottom of the bottom part of the cup body or the bottom of the cutter head body are in sealing connection with the cavity wall of the cavity, the cavity bottom of the cavity or the upper port of the cavity, and the body part of the material cup body, the bottom part of the cup of the material cup body or the space surrounded by the cutter head body and the cavity form a coupling cavity;

structural form 1.2: the upper part of the machine base extends upwards to form a concave cavity, and the cup body part of the material cup body, the cup bottom part of the material cup body or the cutter head body are in butt joint connection with the upper port of the concave cavity; the body part of the material cup body, the bottom part of the material cup body or the outer edge of the cutter head body are in sealing connection with the cavity wall, the bottom part of the cavity or the upper port of the cavity, or the body part of the material cup body, the bottom part of the material cup body or the bottom part of the cutter head body are in sealing connection with the cavity wall, the bottom part of the cavity or the upper port of the cavity, and the body part of the cup, the bottom part of the cup or the space surrounded by the cutter head body and the cavity form a coupling cavity;

structural form 2: the upper part of the machine base does not extend upwards, the cup body part of the material cup body, the cup bottom part of the material cup body or the cutter head body extends downwards to form a concave cavity, the wall of the concave cavity is in sealing connection with the upper top part of the machine base or the outer edge of the machine base, or the lower port of the concave cavity is in sealing connection with the upper top part of the machine base or the outer edge of the machine base, and the concave cavity and the space surrounded by the upper top part of the machine base or the outer edge of the machine base form a coupling cavity;

structural form 3: the upper portion of frame upwards extends and forms the cavity, and the cup body portion of material cup, the bottom of cup portion of material cup or the cutter head body downwardly extending form the cavity, and the cavity that the upper portion of frame upwards extends the formation and cup body portion of material cup, the bottom of cup portion of material cup or the cavity that the cutter head body downwardly extending formed cup body cup joint sealing connection each other or butt joint sealing connection each other, the space that cup joints each other or butt joint each other and enclose constitutes the shaft coupling chamber.

<5> the vacuum food crushing and stirring machine according to <1> or <2> above, wherein the lower air passage is communicated with the air exhaust port of the vacuum pump (11) in the machine base by adopting one of the following structural forms:

the structural form I is as follows: the air exhaust port of the vacuum pump (11) is directly used as a lower air passage, namely the air exhaust port of the vacuum pump (11) penetrates through the upper part or the side wall of the base and is directly communicated with the coupling cavity (53);

the structural form II is as follows: the air suction port of the vacuum pump (11) is communicated with the coupling cavity (53) through an air suction pipe penetrating through the upper part or the side wall of the stand;

the structural form is three: the inner space of the base (1) is a closed space, a motor shaft (21) of the cutter motor (2) is a hollow motor shaft, an opening is formed in the position, located in the coupling cavity (53), of the hollow motor shaft and communicated with the coupling cavity (53), an opening is formed in the position, located in the base, of the hollow motor shaft and communicated with the inner space of the base (1), and an air suction opening of the vacuum pump (11) is communicated with the inner space of the base (1);

the structural form is four: a motor shaft (21) of the cutter motor (2) is a hollow motor shaft, and an opening is formed in the part, located in the coupling cavity (53), of the hollow motor shaft and communicated with the coupling cavity (53); the hollow motor shaft is provided with an opening at the position positioned in the base, the opening is directly in sliding sealing communication with the air exhaust port of the vacuum pump (11) through a rotary sealing joint, or the opening is in sliding sealing communication with one end of an air exhaust pipe through a rotary sealing joint, and the other end of the air exhaust pipe is communicated with the air exhaust port of the vacuum pump (11);

the structural form is five: the inner space of the machine base (1) is a closed space, through air holes are formed between the coupler cavity (53) and the inner space of the machine base (1) and are communicated with each other, and an air suction opening of the vacuum pump (11) is communicated with the inner space of the machine base (1).

<6> the vacuum food mill-mixer according to <1> or <2> above, wherein at least one portion of the vacuum food mill-mixer is provided with a valve; the valve is a manual valve or an electric control valve; the specific setting position of the valve adopts one of the following structural forms:

the structure form I: a through vent hole is formed in the side wall or the bottom of the coupling cavity, and the valve is arranged on a channel of the vent hole;

the structural form II is as follows: the valve is arranged at the air exhaust port of the vacuum pump;

the structural form is three: the valve is arranged on the lower air passage;

the structural form is four: the engine base is provided with a closed space, the side wall or the bottom of the engine base is provided with a through vent hole, and the valve is arranged on a channel of the vent hole.

<7> the vacuum food crushing and stirring machine according to <1> or <2> above, wherein the lower air passage has an opening in the coupling chamber, and the horizontal height of the opening is located at a higher position in the coupling chamber.

<8> the vacuum food mill mixer according to <7> above, characterized in that: the opening is also provided with a gas-water separation device or a breathable waterproof device for preventing the foodstuff liquid from entering the vacuum pump (11).

<9> the vacuum food crushing and stirring machine comprising:

the machine base (1) is internally provided with a cutter motor (2), a vacuum pump (11) and a control circuit board;

a cutter head body (4), a cutter shaft (13) which passes through the cutter head body and the upper end and the lower end of which respectively extend out is supported on the cutter head body in a sliding and sealing way, a cutter (6) is arranged at the upper end of the cutter shaft, the lower end of the cutter shaft is positioned in the cavity of the mechanical transmission device and is detachably connected with the mechanical transmission device,

the material cup body is positioned on the cutter head body (4), the material cup body and the cutter head body form a material cup assembly, and a closed crushing cavity (71) for containing food is formed in the inner periphery of the material cup assembly; the cutter (6) is positioned in the crushing cavity (71);

the material cup assembly is arranged on the base and is detachably connected with the base, the material cup assembly is connected with the base in a sealing way so as to form a closed mechanical transmission device cavity (53),

a cutter motor in the base transmits power to the cutter shaft through a mechanical transmission device, at least one part of the mechanical transmission device is accommodated in a mechanical transmission device cavity (53),

the mechanical transmission device cavity (53) is communicated with a lower air passage, the lower air passage is communicated with an air pumping opening of a vacuum pump (11) in the base, and an air exhaust opening of the vacuum pump is communicated with the outside atmosphere directly or through an air exhaust pipe.

<10> according to the vacuum food crushing and stirring machine <9>, the cavity of the mechanical transmission device is in a vacuum negative pressure state during working, and the material cup assembly and the machine base are tightly sucked.

<11> the vacuum food crushing and stirring machine according to <9>, the cup assembly is placed on the base and detachably connected with the base, and the cup assembly is hermetically connected with the base to form a closed mechanical transmission device cavity (53), specifically adopting one of the following structural forms:

structural form 1.1: the upper part of the machine base extends upwards to form a concave cavity, and the cup body part of the material cup body or the cup bottom part of the material cup body or the cutter head body extends into the concave cavity; the outer edge of the body part of the material cup body, the outer edge of the bottom part of the material cup body or the outer edge of the cutter head body are hermetically connected with the cavity wall of the cavity, the cavity bottom of the cavity or the upper port of the cavity, or the bottom of the body part of the material cup body, the bottom of the bottom part of the cup body or the bottom of the cutter head body are hermetically connected with the cavity wall of the cavity, the cavity bottom of the cavity or the upper port of the cavity, and the space surrounded by the body part of the material cup body, the bottom part of the cup body of the material cup body or the cutter head body and the cavity forms a mechanical transmission device cavity;

structural form 1.2: the upper part of the machine base extends upwards to form a concave cavity, and the cup body part of the material cup body, the cup bottom part of the material cup body or the cutter head body are in butt joint connection with the upper port of the concave cavity; the body part of the material cup body, the bottom part of the material cup body or the outer edge of the cutter head body are in sealing connection with the cavity wall, the bottom part of the cavity or the upper port of the cavity, or the body part of the material cup body, the bottom part of the material cup body or the bottom part of the cutter head body are in sealing connection with the cavity wall, the bottom part of the cavity or the upper port of the cavity, and the space surrounded by the body part, the bottom part of the cup or the cutter head body and the cavity forms a mechanical transmission device cavity;

structural form 2: the upper part of the machine base does not extend upwards, the cup body part of the material cup body, the cup bottom part of the material cup body or the cutter head body extends downwards to form a concave cavity, the cavity wall of the concave cavity is in sealing connection with the upper top part of the machine base or the outer edge of the machine base, or the lower port of the concave cavity is in sealing connection with the upper top part of the machine base or the outer edge of the machine base, and the space surrounded by the concave cavity and the upper top part of the machine base or the outer edge of the machine base forms a mechanical transmission device cavity;

structural form 3: the upper portion of frame upwards extends and forms the cavity, and the cup body portion of material cup, the bottom of cup portion of material cup or the recess that the cutter head body downwardly extended and forms the cavity, the upper portion of frame upwards extends the cavity that forms and cup body portion of material cup, the bottom of cup portion of material cup or the recess that the cutter head body downwardly extended and forms and cup joints sealing connection each other or butt joint sealing connection each other, the space that cup joints each other or butt joint each other and enclose constitutes mechanical transmission device chamber.

<12> the vacuum food crushing and stirring machine according to the above <9>, the lower air passage is communicated with the air exhaust port of the vacuum pump (11) in the machine base by adopting one of the following structural forms:

the structure form I: the air exhaust port of the vacuum pump (11) is directly used as a lower air passage, namely the air exhaust port of the vacuum pump (11) penetrates through the upper part or the side wall of the base and is directly communicated with the mechanical transmission device cavity (53);

the structural form II is as follows: the air suction port of the vacuum pump (11) is communicated with the mechanical transmission device cavity (53) through an air suction pipe penetrating through the upper part or the side wall of the stand;

the structural form is three: the inner space of the base (1) is a closed space, a motor shaft (21) of the cutter motor (2) is a hollow motor shaft, an opening is formed in the position, located in the mechanical transmission device cavity (53), of the hollow motor shaft and communicated with the mechanical transmission device cavity (53), an opening is formed in the position, located in the base, of the hollow motor shaft and communicated with the inner space of the base (1), and an air suction port of the vacuum pump (11) is communicated with the inner space of the base (1);

the structural form is four: a motor shaft (21) of the cutter motor (2) is a hollow motor shaft, and an opening is formed in the part, located in the mechanical transmission device cavity (53), of the hollow motor shaft and communicated with the mechanical transmission device cavity (53); the hollow motor shaft is provided with an opening at the position in the base, the opening is directly in sliding sealing communication with the air exhaust port of the vacuum pump (11) through a rotary sealing joint, or the opening is in sliding sealing communication with one end of an air exhaust pipe through a rotary sealing joint, and the other end of the air exhaust pipe is communicated with the air exhaust port of the vacuum pump (11);

the structural form is five: the internal space of frame (1) is airtight space, there is the gas pocket that runs through and communicates each other between the internal space of mechanical transmission chamber (53) and frame (1), the interior space of frame (1) is communicated to the extraction opening of vacuum pump (11).

<13> the vacuum food mill mixer according to <9> above, wherein at least one portion of the vacuum food mill mixer is provided with a valve; the valve is a manual valve or an electric control valve; the specific setting position of the valve adopts one of the following structural forms:

the structure form I: a through air vent is arranged on the side wall or the bottom of the mechanical transmission device cavity, and the valve is arranged on a channel of the air vent;

the structural form is three: the valve is arranged on the lower air passage;

<14> the vacuum food crushing and stirring machine according to <9> above, wherein the lower air passage has an opening in the mechanical transmission chamber, and the horizontal level of the opening is located at a higher position in the mechanical transmission chamber.

<15> the vacuum food crushing and stirring machine according to <9> above, wherein the opening is further provided with a gas-water separation device or a gas-permeable and watertight device for preventing the foodstuff liquid from entering the vacuum pump (11).

<16> the vacuum food mill-mixer according to <1> or <9> above,

the material cup body is an inverted material cup, and a port of the inverted material cup is connected with the cutter head body; or the material cup body is an upper opening material cup, the material cup body comprises a cup body part and a cup bottom part, a sealing cover is arranged at the upper opening of the cup body part, and the cup body part or the cup bottom part is detachably connected with the cutter head body.

Therefore, compared with the prior art, the invention has the following advantages:

(1) the space is effectively utilized, and the volume of the whole machine is reduced;

(2) the coupler cavity is in a vacuum negative pressure state during working, the material cup body and the base are tightly sucked, the material cup body is directly placed on the base and can be firmly sucked, the upper air passage and the lower air passage can be simply and reliably communicated in a sealing mode, a screwing device between the material cup body and the base is omitted, operation of a user is simplified, and the coupler cavity is convenient to use.

The invention also discloses the following contents:

the invention aims to provide an improved vacuum food crushing and stirring machine capable of realizing vacuumizing crushing and stirring, wherein a coupling cavity of the improved vacuum food crushing and stirring machine is in a vacuum negative pressure state during working, a material cup assembly and a machine base are tightly sucked, an upper air path and a lower air path can be simply and reliably communicated in a sealing way, and a screwing device between the material cup body and the machine base is omitted; meanwhile, the material cup assembly extending into the crushing cavity through the cutter head on the upper air path can be applied only by using the material cup body with a common structure, the cup body part of the material cup body is not provided with any air exhaust part, and the material cup body is formed by adopting a common inverted material cup or a common detachable material cup, so that the manufacturing cost is reduced, and the use convenience is improved. In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a vacuum food masher comprising:

the base is internally provided with a cutter motor, a vacuum pump and a control circuit board; a motor shaft of the cutter motor extends upwards out of the upper part of the base, and a first half coupling is arranged at the top end of the motor shaft;

the cutter comprises a cutter body, a cutter shaft which penetrates through the cutter body and extends out of the upper end and the lower end of the cutter shaft respectively is supported on the cutter body in a sliding and sealing manner, a cutter is arranged at the upper end of the cutter shaft, and a second half coupling matched with the first half coupling is arranged at the lower end of the cutter shaft;

the material cup body is arranged on the cutter head body; the material cup body and the cutter head body are connected in a sealing way to form a material cup assembly, and a closed crushing cavity for containing food is formed in the inner periphery of the material cup assembly; the cutter is positioned in the crushing cavity;

the material cup assembly is arranged on the base and is detachably connected with the base, the material cup assembly is connected with the base in a sealing way so as to form a closed coupling cavity,

the first half coupling and the second half coupling are butted with each other to form a coupling when the material cup assembly is in sealing connection with the base, and the coupling is accommodated in the coupling cavity;

the coupling cavity is respectively communicated with an upper air passage and a lower air passage,

the upper opening of the upper gas path is communicated with the crushing cavity, the upper opening of the upper gas path is arranged above the foodstuff liquid level in the crushing cavity, and the lower opening of the upper gas path is positioned in the coupler cavity and is communicated with the coupler cavity;

the lower air passage is communicated with an air suction port of a vacuum pump in the base, and an exhaust port of the vacuum pump is communicated with the outside atmosphere directly or through an exhaust pipe.

In order to achieve the above purpose, the technical solution of the present invention can also be realized as follows:

a vacuum food grinder-blender, comprising:

the material cup body is positioned on the cutter head body and is of an integrated structure, the material cup body and the cutter head body mainly form a material cup assembly, and a closed crushing cavity (71) for containing food is formed by the inner periphery of the material cup assembly; the cutter (6) is positioned in the crushing cavity (71);

the coupling cavity (53) is respectively communicated with an upper air passage and a lower air passage,

the upper opening of the upper air passage is communicated with the crushing cavity (71), the upper opening of the upper air passage is arranged above the foodstuff liquid level in the crushing cavity (71), and the lower opening of the upper air passage is positioned in the coupling cavity (53) and is communicated with the coupling cavity;

the lower air passage is communicated with an air suction opening of a vacuum pump (11) in the base, and an exhaust opening of the vacuum pump is communicated with the outside atmosphere directly or through an exhaust pipe.

a vacuum food grinder-blender, comprising:

a cutter shaft (13) which penetrates through the cutter disc body and extends out of the upper end and the lower end of the cutter shaft respectively is supported on the cutter disc body in a sliding and sealing way (4), a cutter (6) is arranged at the upper end of the cutter shaft, the lower end of the cutter shaft is positioned in the cavity of the mechanical transmission device and is detachably connected with the mechanical transmission device,

the material cup body is positioned on the cutter head body (4), the material cup body and the cutter head body mainly form a material cup assembly, and a closed crushing cavity (71) for containing food is formed by the inner periphery of the material cup assembly; the cutter (6) is positioned in the crushing cavity (71);

a cutter motor in the base transmits power to the cutter shaft through a mechanical transmission device, at least one part of the mechanical transmission device is accommodated in a cavity (53) of the mechanical transmission device,

the mechanical transmission device cavity (53) is respectively communicated with an upper air passage and a lower air passage,

the upper opening of the upper air passage is communicated with the crushing cavity (71), the upper opening of the upper air passage is arranged above the foodstuff liquid level in the crushing cavity (71), and the lower opening of the upper air passage is positioned in the mechanical transmission device cavity (53) and is communicated with the mechanical transmission device cavity;

Further, the upper air path adopts one of the following structural forms:

the structure form I: the upper gas circuit is an exhaust pipe, the exhaust pipe penetrates through the cutter head body, and the part of the exhaust pipe in the crushing cavity avoids the rotating area of the cutter;

the structural form II is as follows: the cutter shaft is a hollow cutter shaft, the upper air channel is formed by the cutter shaft, namely, an opening is formed in the part of the hollow cutter shaft, which is positioned in the coupler cavity, the hollow cutter shaft is communicated with the coupler cavity, the hollow cutter shaft penetrates through the cutter, and the upper opening of the hollow cutter shaft is arranged above the liquid level of foodstuff in the crushing cavity;

the structural form is three: the cutter shaft is a hollow cutter shaft, the upper end of the hollow cutter shaft penetrates through the cutter and is fixedly connected, detachably connected or rotationally and hermetically connected with an exhaust pipe, an internal channel of the exhaust pipe is communicated with an internal channel of the hollow cutter shaft to form the upper air passage together, and an upper opening of the exhaust pipe is arranged above the liquid level of foodstuff in the crushing cavity; the part of the hollow cutter shaft, which is positioned in the coupler cavity, is provided with an opening and the hollow cutter shaft is communicated with the coupler cavity;

the structural form is four: the cutter shaft is a hollow cutter shaft, the upper end of the hollow cutter shaft penetrates through the cutter and is fixedly connected, detachably connected or rotationally and hermetically connected with an exhaust pipe, an internal channel of the exhaust pipe is communicated with an internal channel of the hollow cutter shaft to form the upper air channel together, and an upper opening of the exhaust pipe is arranged above the liquid level of foodstuff in the crushing cavity; the air exhaust pipe penetrates through the hollow cutter shaft, and the lower end of the air exhaust pipe extends into the coupler cavity and is communicated with the coupler cavity;

the structural form is five: the material cup body is provided with a side handle, the upper air path extends upwards from the inside of the side handle of the material cup body, the upper air path extends into the crushing cavity at the upper part of the material cup body, and the upper opening of the upper air path is arranged above the foodstuff liquid level in the crushing cavity; the part of the upper air passage, which is positioned in the coupling cavity, is provided with a lower opening and the upper air passage is communicated with the coupling cavity; preferably, the upper gas path is an exhaust tube;

the structural form is six: the upper gas path extends upwards along the inner wall or the outer wall of the material cup body, the upper gas path extends into the crushing cavity (71) at the upper part of the material cup body, and the upper opening of the upper gas path is arranged above the foodstuff liquid level in the crushing cavity; the part of the upper air passage positioned in the coupling cavity (53) is provided with a lower opening and the upper air passage is communicated with the coupling cavity; preferably, the upper air passage is an exhaust pipe.

Further, the material cup assembly is arranged on the base and detachably connected with the base, and the material cup assembly is hermetically connected with the base to form a closed coupling cavity in a surrounding manner, and specifically adopts one of the following structural forms:

Further, the air exhaust port of the vacuum pump in the lower air passage and the base is communicated by adopting one of the following structural forms:

the structure form I: the air exhaust port of the vacuum pump is directly used as a lower air passage, namely the air exhaust port of the vacuum pump penetrates through the upper part or the side wall of the base and is directly communicated with the coupling cavity;

the structural form II is as follows: the pumping port of the vacuum pump is communicated with the coupling cavity through a pumping pipe penetrating through the upper part or the side wall of the base;

the structural form is three: the inner space of the base is a closed space, a motor shaft of the cutter motor is a hollow motor shaft, an opening is formed in the position, located in the coupling cavity, of the hollow motor shaft and communicated with the coupling cavity, an opening is formed in the position, located in the base, of the hollow motor shaft and communicated with the inner space of the base, and an air suction opening of the vacuum pump is communicated with the inner space of the base;

the structural form is four: a motor shaft of the cutter motor is a hollow motor shaft, and an opening is formed in the position, located in the coupling cavity, of the hollow motor shaft and communicated with the coupling cavity; the hollow motor shaft is provided with an opening at the position positioned in the base, the opening is directly in sliding sealing communication with the air exhaust port of the vacuum pump through a rotary sealing joint, or the opening is in sliding sealing communication with one end of an air exhaust pipe through a rotary sealing joint, and the other end of the air exhaust pipe is communicated with the air exhaust port of the vacuum pump;

the structural form is five: the inner space of the base is a closed space, through air holes are formed between the coupler cavity and the inner space of the base and communicated with each other, and the air suction port of the vacuum pump is communicated with the inner space of the base.

Further, an air-water separation device or a breathable waterproof device for preventing the food liquid from entering the coupling cavity through the upper air passage is further arranged at the upper opening of the upper air passage.

Furthermore, the upper gas path is also provided with a one-way valve which only allows gas to flow from the crushing cavity to the coupling cavity;

the cutter shaft is a hollow cutter shaft, and the one-way valve is arranged at an opening of the hollow cutter shaft positioned in the coupler cavity, or the one-way valve is arranged in the hollow cutter shaft; or the upper gas circuit is an exhaust tube, and the one-way valve is arranged in the exhaust tube or at the upper opening of the exhaust tube or at the lower opening of the exhaust tube.

Furthermore, at least one position of the valve is provided with a valve; the valve is a manual valve or an electric control valve; the specific setting position of the valve adopts one of the following structural forms:

the structure form I: a through vent hole is formed in the side wall of the material cup body, and the valve is arranged on a channel of the vent hole;

the structural form II is as follows: the material cup body comprises a sealing cover, a vent hole is formed in the sealing cover and penetrates through the sealing cover, and the valve is arranged on a channel of the vent hole;

the structural form is three: a through vent hole is formed in the side wall or the bottom of the coupling cavity, and the valve is arranged on a channel of the vent hole;

the structural form is four: the cutter head body is provided with a vent hole which penetrates through the cutter head body, and the valve is arranged on a channel of the vent hole;

the structural form is five: the cutter shaft is a hollow cutter shaft, and the valve is arranged at an opening of the hollow cutter shaft positioned in the coupler cavity;

the structural form is six: the valve is arranged at the air exhaust port of the vacuum pump;

the structural form is seven: the valve is arranged on the upper air passage;

the structural form is eight: the valve is arranged on the lower air passage;

the structural form is nine: the engine base is provided with a closed space, the side wall or the bottom of the engine base is provided with a through vent hole, and the valve is arranged on a channel of the vent hole.

Furthermore, the lower gas circuit is provided with an opening in the coupler cavity, and the horizontal height of the opening is positioned at the higher position in the coupler cavity; preferably, the opening is also provided with a gas-water separation device or a gas-permeable and watertight device for preventing the foodstuff liquid from entering the vacuum pump.

Further, the vacuum pump pumps out air in the crushing cavity in all, any two or any one of three stages before, during and after the cutter crushes and stirs the food in the crushing cavity, and keeps the crushing cavity in a vacuum state.

Furthermore, a limiting anti-shaking device for limiting the shaking of the part of the upper gas path in the crushing cavity is also arranged in the material cup body;

the material cup body is an inverted material cup, and a port of the inverted material cup is connected with the cutter head body;

or

The material cup body is an upper opening material cup, the material cup body comprises a cup body part and a cup bottom part, a sealing cover is arranged at an upper opening of the cup body part, and the cup body part or the cup bottom part is detachably connected with the cutter head body.

The main design idea created by the invention is as follows: the coupler cavity is fully utilized, the coupler cavity is sealed to serve as an intermediate link for starting and stopping the vacuumizing air exhaust channel, the upper portion of the coupler cavity is communicated with the crushing cavity, and the lower portion of the coupler cavity is communicated with the vacuum pump.

(1) for the material cup assembly with the upper air path extending into the crushing cavity through the cutter head body, the air exhaust channel does not need to be attached to the material cup body, the processing difficulty and the cost of the material cup body are reduced, all air exhaust parts can be arranged on the cutter head body, and for the inverted material cup and the material cup with the body part of the material cup body detachably connected with the cutter head body, no air exhaust part is arranged on the material cup body, so that the inverted material cup or the common detachable material cup can be adopted;

(2) the space is effectively utilized, and the volume of the whole machine is reduced;

(3) the coupling cavity is in a vacuum negative pressure state during working, the material cup body and the machine base are tightly sucked, so that the material cup body can be firmly sucked when being directly placed on the machine base, an upper air passage and a lower air passage can be simply and reliably communicated in a sealing way, a screwing device between the material cup body and the machine base is omitted, the operation of a user is simplified, and the use is convenient;

(4) for the material cup assembly with the one-way valve on the upper air path, after the vacuum fruit juice is prepared, the vacuum state can be automatically kept. Therefore, the beverage is very convenient to be stored in a refrigerator or to be carried and drunk outdoors.

(5) In case go up in the gas circuit and inhaled foodstuff liquid or residue, then this foodstuff liquid or residue also can get into the shaft coupling intracavity at first, and the user can very conveniently clear up after opening the shaft coupling chamber foodstuff liquid and residue avoid being in the inhaled foodstuff liquid directly gets into the vacuum pump in the gas circuit, cause the vacuum pump to damage. The closed coupling cavity also serves as a 'dirt separator' in the vacuum pumping system.

(6) The horizontal height of the opening of the lower air passage in the coupler cavity is positioned at a higher position in the coupler cavity. Even if foodstuff liquid or residue is sucked in the upper gas path, the foodstuff liquid or the residue is difficult to enter the vacuum pump because the opening level of the lower gas path in the coupler cavity is higher after the foodstuff liquid or the residue enters the coupler cavity.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:

FIG. 1 is a schematic partial cross-sectional view of inventive example 1 of the present application;

FIG. 2 is a schematic partial cross-sectional view of inventive example 2;

fig. 3 is an enlarged schematic view of a portion a in fig. 2;

FIG. 4 is a schematic structural diagram of an embodiment of a limiting anti-shaking device for limiting the upper air passage to be disposed in the pulverizing chamber and preventing shaking thereof;

FIG. 5 is a schematic partial cross-sectional view of inventive example 3;

FIG. 6 is a schematic partial cross-sectional view of inventive example 4;

FIG. 7 is a schematic partial cross-sectional view of inventive example 5;

FIG. 8 is a schematic partial cross-sectional view of inventive example 6;

description of the main reference numerals:

1-a machine base; 2-a cutter motor; 3-a sealing gasket; 4-a cutter head body; 5-a coupler; 6-cutting tools; 7-material cup body; 8-inlet valve (i.e. valve); 9-a second extraction pipe; 10-a first extraction duct; 11-a vacuum pump; 12-a central positioning support; 13-cutter shaft; 14-rubber seal ring for rotary sealing; 15-upper end cap (i.e. sealing cap); 16-hole covers; 17-side handle; 18-gas-water separation device.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The control circuit board is an electronic control device for controlling the vacuum food crushing and stirring machine, can be a tangible circuit control board, and can also be an electronic control module and the like capable of realizing the same control function.

The mechanical transmission device comprises: the transmission device is an intermediate device for transmitting the movement and power of a prime mover to a working mechanism. The transmission mode of mechanical transmission according to power can be divided into: friction drive, chain drive, gear drive, belt drive, worm and gear drive, ratchet drive, crankshaft connecting rod drive, pneumatic drive, hydraulic drive, universal joint drive, wire rope drive, coupling drive, spline drive, and the like.

In the invention, the first half coupling 51 and the second half coupling 52 are butted with each other to form a coupling 5 when the material cup assembly is hermetically connected with the machine base, and the coupling is a mechanical transmission device for transmitting the power output by the motor shaft of the cutter motor to the cutter shaft 13 of the cutter 6. In addition, the motor shaft can transmit the power output by the motor shaft to the cutter shaft 13 through any other mechanical transmission device, such as a gear transmission device, a belt transmission device, and the like.

Further, the motor shaft may not extend upward out of the upper portion of the base, but (on the premise of ensuring the mechanical transmission cavity is sealed) the cutter motor transmits power to the cutter shaft 13 through any one or more mechanical transmission devices such as a gear transmission device or a belt transmission device in the base 1.

The structure can be as follows:

a base 1, in which a cutter motor 2, a vacuum pump 11 and a control circuit board (or an electronic control module and other control devices) are arranged; the cutter comprises a cutter body 4, wherein a cutter shaft 13 which penetrates through the cutter body and extends out of the upper end and the lower end of the cutter shaft is supported on the cutter body in a sliding and sealing manner, a cutter 6 is arranged at the upper end of the cutter shaft, the lower end of the cutter shaft is positioned in a cavity of a mechanical transmission device and is detachably connected with the mechanical transmission device, a material cup body is positioned on the cutter body 4 and mainly comprises a material cup body and the cutter body, and a closed crushing cavity 71 for containing food is formed in the inner periphery of the material cup body; the cutter 6 is positioned in the crushing cavity 71; the material cup assembly is arranged on the base and detachably connected with the base, the material cup assembly and the base are connected in a sealing mode to form a closed mechanical transmission device cavity in a surrounding mode, a cutter motor in the base transmits power to the cutter shaft through any mechanical transmission device, at least one part of the mechanical transmission device is accommodated in the mechanical transmission device cavity, when the mechanical transmission device is a coupler, the mechanical transmission device cavity is a coupler cavity 53, the mechanical transmission device cavity 53 is respectively communicated with an upper air channel and a lower air channel, an upper food material opening of the upper air channel is communicated with the crushing cavity 71, an upper food material opening of the upper air channel is arranged above the liquid level in the crushing cavity 71, and a lower food material opening of the upper air channel is located in the mechanical transmission device cavity 53 and communicated with the mechanical transmission device cavity; the lower air passage is communicated with an air suction port of a vacuum pump 11 in the base, and an exhaust port of the vacuum pump is communicated with the outside atmosphere directly or through an exhaust pipe.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

As shown in embodiment 1 of FIG. 1, the present invention provides a vacuum food grinder-blender, comprising a base 1, a cutter head 4, a cup 7 and a control circuit board (not shown). In this embodiment, the material cup body 7 is an inverted material cup, the bottom end of the inverted material cup is in threaded connection with the cutter head body 4, the cutter head body 4 is slidably and hermetically supported with a cutter driving shaft (i.e. a cutter shaft 13) penetrating through the cutter head body, a motor shaft 21 of the cutter motor 2 extends upwards out of the upper part of the machine base, and the top end of the motor shaft is provided with a first half coupling 51; the upper end of the cutter shaft 13 is provided with a cutter 6, and the lower end is provided with a second half coupling 52 matched with the first half coupling. A coupling cavity 53 for accommodating a coupling 5 is arranged between the base 1 and the inserted cutter head body 4 (the construction form of the coupling cavity is described in the invention, and is not described herein again), a sealing gasket 3 is arranged at the joint part between the base 1 and the cutter head body 4 to enable the coupling cavity to be in a sealing state, and the sealing gasket 3 in the embodiment 1 is a rubber sealing element arranged between the bottom end of the cutter head body 4 and the base. A cutter motor 2 and a vacuum pump 11 are arranged in the base 1, a first exhaust pipe 10 communicated with the coupling cavity is arranged at an exhaust port of the vacuum pump 11, and a second exhaust pipe 9 respectively communicated with the coupling cavity and the upper part of the material cup body 7 is supported by the cutter head body 4. An I-shaped air inlet valve 8 in the prior art is arranged on one side of the upper part of the material cup body 7.

In the embodiment shown in fig. 1, the upper air path is formed by the second air exhaust pipe 9 alone, and the lower air path is formed by combining the form that the air exhaust port of the vacuum pump 11 is provided with the first air exhaust pipe 10 communicated with the coupling cavity, or the form that the air exhaust port of the vacuum pump 11 directly penetrates through the base to extend into the coupling cavity 53. In addition, as shown in fig. 1, the second air extraction pipe 9 is arranged between the rotating area of the cutter 6 and the cup body of the material cup body 7, avoiding the rotating area of the cutter 6; and the upper opening of the second air exhaust pipe 9 is arranged above the foodstuff liquid level in the crushing cavity.

The vacuum pump 11 is a micro electric vacuum pump with a motor, or a micro vacuum pump with an external power source, and the power source is driven by the cutter motor 2 through a gear or a belt.

The machine base 1 can also be provided with a control circuit board (the control circuit board is electrically connected with electric devices such as a cutter motor, a vacuum pump and an electric control valve) in the prior art, and the control functions comprise motor start-stop and vacuum pump start-stop, wherein the vacuum pump start-stop can be manual, and a time control, air pressure control or vacuum pump motor load current detection control mode can also be adopted. The microprocessor can also be adopted to carry out intelligent control on the starting and the stopping of the motor and the starting and the stopping of the vacuum pump, and the intelligent control method comprises the following steps: vacuum air pumping is carried out firstly, then crushing, vacuum air pumping and crushing are carried out simultaneously, and vacuum preservation is carried out. The surface of the machine base 1 is provided with a corresponding control switch or an intelligent control panel.

The present embodiment may also be provided with a prior art air pressure display device.

As shown in fig. 2, the material cup body 7 is also an inverted material cup, and the bottom end of the inverted material cup is connected with the cutter head body 4 in a threaded manner. A coupling cavity 53 for accommodating the coupling 5 is arranged between the base 1 and the inserted cutter head body 4, a rubber sealing element is arranged at a joint part between the base 1 and the cutter head body 4 to enable the coupling cavity to be in a sealing state, and the rubber sealing element of the embodiment 2 is a sealing gasket 3 arranged between the bottom end of the cutter head body 4 and the base.

A cutter motor 2 and a vacuum pump 11 are arranged in the machine base 1, a first exhaust pipe 10 communicated with the coupling cavity is arranged at an exhaust opening of the vacuum pump 11, a cutter shaft 13 supported on the cutter body 4 is a hollow cutter shaft, and the hollow cutter shaft of the cutter 6 is communicated with the coupling cavity. The lower end of the second evacuation pipe 9 is fitted into a hollow cutter shaft 13, the hollow cutter shaft 13 is provided with a rotary seal mechanism (which enables the second evacuation pipe 9 to slide, seal and rotate with respect to the hollow cutter shaft 13) joined to the lower end of the second evacuation pipe 9, and the rotary seal mechanism of embodiment 2 is provided in two vertical positions using rotary seal rubber packing 14 as shown in fig. 3. The second air exhaust pipe 9 can also be arranged in a mode that the lower end extends out of the hollow cutter shaft, and the second air exhaust pipe 9 is directly communicated with the coupler cavity. A central positioning bracket 12 for fixing the second air extraction pipe 9 as shown in figure 4 is arranged in the upper part of the material cup body 7, so that the second air extraction pipe 9 does not rotate along with the hollow cutter shaft 13.

The upper air passage of the present embodiment is composed of the second air exhaust pipe 9 and the hollow cutter shaft 13, and the lower air passage is composed in the same manner as in embodiment 1.

As shown in figure 3, the bottom of the hollow cutter shaft 13 can be provided with an I-shaped air inlet valve 8 in the prior art, the upper hanging piece is provided with a through hole, the lower sealing piece of the I-shaped air inlet valve during air exhaust is opened under the action of negative pressure, the lower sealing piece is restored to a closed state after the air exhaust is finished, the lower sealing piece is manually moved to enable air to enter the material cup through the hollow cutter shaft 13 and the second air exhaust pipe 9, and the crushing cavity in the material cup body is relieved from the negative pressure to enable the material cup body to be separated from the cutter head body in a rotating mode. By adopting the design, after the air pumping is finished, before the air inlet valve 8 is not pulled, the vacuum state can be still kept in the crushing cavity, the vacuum is beneficial to keeping food liquid in the cup fresh and not oxidized when the cup is carried out conveniently, the negative pressure is relieved before drinking, the negative pressure in the crushing cavity in the cup is relieved, so that the crushing cavity is separated from the cutter head body in a rotating way, and the user drinks the beverage again. The air inlet valve 8 in this embodiment functions as a check valve during air suction and automatic vacuum maintenance; it functions as a valve (i.e., an inlet valve) when venting (i.e., relieving the vacuum), i.e., one valve functions in two.

The inlet valve 8 shown in fig. 6 and 7 only functions as a bleed.

The positions of the air inlet valve, the air release valve, the one-way valve and other valves can be various, which are replaced in the invention content, and the description is not repeated.

In example 3 shown in fig. 5, the feed cup body 7 is an inverted feed cup, and the port thereof is screwed with the cutter head body 4. A coupler cavity for accommodating a coupler 5 is arranged between the base 1 and the inserted cutter head body 4, a rubber sealing piece is arranged at a joint part between the base 1 and the cutter head body 4 to enable the coupler cavity to be in a sealing state, and the rubber sealing piece is a sealing gasket 3 arranged between the bottom end of the cutter head body 4 and the base.

The machine base 1 is internally provided with a cutter motor 2 and a vacuum pump 11, an air exhaust opening of the vacuum pump 11 is provided with a first air exhaust pipe 10 communicated with the coupling cavity, a cutter shaft supported on the cutter head body 4 is a hollow cutter shaft 13, the bottom end of the second air exhaust pipe 9 is connected with the hollow cutter shaft 13 into a whole, and the hollow cutter shaft 13 is communicated with the coupling cavity. The second extraction duct 9 of example 3 rotates with the hollow shaft 13, and should maintain good concentricity with the hollow shaft 13. The bottom end of the second exhaust tube 9 and the hollow cutter shaft 13 can be connected in a threaded connection and interference fit mode, or an elongated hollow cutter shaft integrated structure is adopted.

The air release valve of the embodiment 3 can adopt the structure and the installation position of the embodiment 1 of fig. 1 or the embodiment 2 of fig. 2. Or a through air hole is arranged at the bottom of the coupling cavity (namely the wall or the top wall of the upper part of the machine base), an electric control valve 8 is arranged at the air hole (not shown in figure 5, when the electric control valve 8 is arranged, the space in the machine base 1 needs to be communicated with the external atmosphere), and the electric control valve is electrically connected with the control circuit board. After the juice is manufactured by vacuumizing, the control circuit board sends out a control signal to open the electric control valve and release the vacuum in the shaft coupling cavity 53.

As shown in fig. 6 of embodiment 4, the material cup 7 has an upper end cap 15, and a sealing ring is provided between the skirt of the upper end cap (i.e. sealing cap) 15 and the cup port. The upper end cover 15 is also provided with a central feeding hole, and a sealing ring is also arranged between the skirt edge of the hole cover 16 and the central feeding hole. The arrangement of each sealing ring enables the material cup body 7 to be in a sealing state during air exhaust. The cup body 7 of example 4 is provided with a side handle 17. The upper part of the upper end cover 15 is provided with an I-shaped air inlet valve 8 in the prior art.

As shown in FIG. 6, the bottom end of the material cup body 7 is connected with the cutter head body 4 in a threaded manner. A coupling cavity 53 for accommodating a coupling 5 is arranged between the base 1 and the inserted cutter head body 4, a rubber sealing element is arranged at a joint part between the base 1 and the cutter head body 4 to enable the coupling cavity to be in a sealing state, and the rubber sealing element 3 is a sealing gasket arranged between the bottom end of the cutter head body 4 and the base. A cutter motor 2 and a vacuum pump 11 are arranged in the base 1, a first exhaust pipe 10 communicated with the coupling cavity is arranged at an exhaust opening of the vacuum pump 11, and the exhaust pipe 10 is positioned at a higher position in the coupling cavity at the level of an opening in the coupling cavity; preferably, the opening is also provided with an air-water separation device or an air-permeable and watertight device (not shown) for preventing the foodstuff liquid from entering the vacuum pump (11). The cutter head body 4 is supported with a second exhaust tube 9 which is respectively communicated with the coupling cavity and the upper part of the material cup body 7. The second air extraction pipe 9 avoids the rotating area of the cutter 6 and is arranged between the rotating area of the cutter 6 and the cup body of the material cup body 7; and the upper opening of the second air exhaust pipe 9 is arranged above the foodstuff liquid level in the crushing cavity.

As shown in fig. 7 of embodiment 5, the inner space of the base 1 is a closed space, the motor shaft of the cutter motor 2 is a hollow motor shaft with openings at the upper and lower ends thereof communicated, and the upper opening of the hollow motor shaft is communicated with the coupling cavity; the lower opening is directly in sliding sealing communication with the air exhaust opening of the vacuum pump through a rotary sealing joint 18, or the lower opening is in sliding sealing communication with one end of an air exhaust pipe through a rotary sealing joint 18, and the other end of the air exhaust pipe is in sealing connection with the air exhaust opening of the vacuum pump; the exhaust port of the vacuum pump is communicated with the outside atmosphere directly or through an exhaust pipe.

The inner space of the base 1 is a closed space, the inner spaces of the coupling cavity 53 and the base 1 can be communicated with each other through a through air hole, the air pumping hole of the vacuum pump 11 is communicated with the inner space of the base 1, and the exhaust port of the vacuum pump is communicated with the external atmosphere directly or through an exhaust pipe. When the vacuum pump pumps air, air in the closed machine base 1 is pumped away firstly, and then air in the coupling cavity is pumped away (under the condition, the coupling cavity 53 can be pumped vacuum no matter whether the motor shaft of the cutter motor 2 is hollow or not).

In the embodiment 6 shown in fig. 8, the bottom end of the material cup body 7 is integrated with the cutter head body. A coupling cavity 53 for accommodating the coupling 5 is arranged between the base 1 and the inserted material cup body 7, and a rubber sealing gasket 3 is arranged at the joint part between the base 1 and the material cup body 7 to enable the coupling cavity to be in a sealing state. A cutter motor 2 and a vacuum pump 11 are arranged in the machine base 1, and an air suction opening of the vacuum pump 11 is provided with a first air suction pipe 10 communicated with the coupling cavity. A second exhaust pipe 9 is arranged in the side handle 17 of the material cup body 7 (or the side handle 17 can also be in a hollow pipeline shape, the hollow pipeline shape side handle 17 is also used as the second exhaust pipe 9), the exhaust pipe 9 extends upwards from the side handle of the material cup body (or the exhaust pipe extends upwards along the inner wall or the outer wall of the material cup body, the effect is the same), the exhaust pipe 9 extends into the crushing cavity from the upper part of the side handle of the material cup body, and the upper opening of the exhaust pipe 9 is arranged above the foodstuff liquid level in the crushing cavity; the part of the air exhaust pipe 9 positioned in the coupling cavity 53 is provided with an opening and the air exhaust pipe 9 is communicated with the coupling cavity 53; the upper shed of second exhaust tube 9 sets up more than the foodstuff liquid level in smashing the intracavity, and this upper shed department still is equipped with gas-water separation device 18, and the gas-water separation device who adopts in this embodiment is micropore sponge piece (the sponge of square block form, foodstuff liquid spatters on the sponge piece by the micropore dispersion of sponge, block, water can not get into in the exhaust tube 9). The material cup body 7 is provided with a sealed upper end cover 15, the upper end cover 15 is provided with a manual air inlet valve 8 (or a through air hole is arranged on the side wall of the coupling cavity 53, an electric control valve or a manual valve is arranged at the air hole, the effect is the same, if the electric control valve is used, the vacuum can be automatically released after the vacuum fruit juice is prepared).

As a simple deformation structure, the exhaust pipe 9 extends into the crushing cavity at the upper part of the side handle of the material cup body, or the exhaust pipe 9 further extends upwards to the upper end cover (the exhaust pipe 9 can be directly extended without a sealing joint at the joint of the material cup body and the upper end cover), and then extends into the crushing cavity 71 from the upper end cover. In short, the upper opening of the air exhaust pipe 9 can be vacuumized as long as it is positioned in the crushing cavity 71 and above the liquid level of foodstuff. These structures are all within the scope of the invention as claimed.

As is clear from the above embodiments, if the material cup 7 and the cutter head 4 are fixedly connected, the upper end cover of the material cup 7 should adopt the structure of embodiment 4, or a sealing ring is not arranged between the skirt of the upper end cover of the material cup and the cup port, but sealing is realized by "close fit".

The air extractor of

embodiments

2 and 3 is also suitable for the material cup structure of embodiment 4, and the air extractor of

embodiments

2 and 3 is also suitable for a vacuum food crushing and stirring machine in which the material cup 7 and the cutter head 4 are fixedly connected (or detachably connected), and detailed description is omitted.

The vacuum pump configuration and the control mechanism of the motor and the vacuum pump of embodiment 1 are also applicable to the other embodiments.

The inverted material cup and the material cup with the upper opening can also adopt a double-layer structure cup wall and/or a double-layer structure cup bottom. The middle of the double-layer structure cup wall and/or the double-layer structure cup bottom is an air interlayer, vacuum or other heat preservation and insulation materials are filled in the air interlayer.

A detachable movable filter screen can be further arranged at the cup body port of the upper opening material cup.

In addition, the above mentioned upper opening or lower opening of the first air exhaust tube 10, the second air exhaust tube 9, the hollow knife shaft, the hollow motor shaft, etc. is only a corresponding description according to the positions shown in the drawings, and it is not intended to limit the protection scope of the present invention to only have an opening on the upper end surface or the lower end surface, but should cover the situation that the present invention can be easily found by those skilled in the art and is installed on the side wall as long as the function required by the opening can be realized and the connection function relationship required by other components is not affected.

At least one of the joint of the upper end cover and the upper port of the cup body, the joint of the base and the cutter head body and the joint of the base and the bottom of the material cup body is provided with a safety switch device, and the safety switch device is switched on only when the joint is correctly installed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims

1. Vacuum food crushing-stirring machine, its characterized in that includes:

the inner periphery of the material cup combination body forms a crushing cavity (71) for containing food; the cutter (6) is positioned in the crushing cavity (71);

the coupling cavity (53) is communicated with a lower air passage, the lower air passage is communicated with an air suction port of a vacuum pump (11) in the base, and an air exhaust port of the vacuum pump is communicated with the external atmosphere directly or through an exhaust pipe;

the coupling cavity is in a vacuum negative pressure state during working, and the material cup assembly and the machine base are tightly sucked.

2. Vacuum food crushing-stirring machine, its characterized in that includes:

the material cup body is positioned on the cutter head body and is of an integrated structure, a material cup assembly is mainly formed by the material cup body and the cutter head body, and a crushing cavity (71) for containing food is formed in the inner periphery of the material cup assembly; the cutter (6) is positioned in the crushing cavity (71);

3. The vacuum food stuff grinder-mixer of claim 1 or 2, wherein: the material cup assembly is arranged on the base and detachably connected with the base, and the material cup assembly is hermetically connected with the base to form a closed coupling cavity (53), and specifically adopts one of the following structural forms:

the structure form I: the upper part of the machine base extends upwards to form a concave cavity, and the cup body part of the material cup body or the cup bottom part of the material cup body or the cutter head body extends into the concave cavity; the outer edge of the body part of the material cup body, the outer edge of the bottom part of the material cup body or the outer edge of the cutter head body are in sealing connection with the cavity wall of the cavity, the cavity bottom of the cavity or the upper port of the cavity, or the bottom of the body part of the material cup body, the bottom of the bottom part of the cup body or the bottom of the cutter head body are in sealing connection with the cavity wall of the cavity, the cavity bottom of the cavity or the upper port of the cavity, and the body part of the material cup body, the bottom part of the cup of the material cup body or the space surrounded by the cutter head body and the cavity form a coupling cavity;

the structural form II is as follows: the upper part of the machine base extends upwards to form a concave cavity, and the cup body part of the material cup body, the cup bottom part of the material cup body or the cutter head body are in butt joint connection with the upper port of the concave cavity; the body part of the material cup body, the bottom part of the material cup body or the outer edge of the cutter head body are in sealing connection with the cavity wall, the bottom part of the cavity or the upper port of the cavity, or the body part of the material cup body, the bottom part of the material cup body or the bottom part of the cutter head body are in sealing connection with the cavity wall, the bottom part of the cavity or the upper port of the cavity, and the body part of the cup, the bottom part of the cup or the space surrounded by the cutter head body and the cavity form a coupling cavity;

the structural form is three: the upper part of the machine base does not extend upwards, the cup body part of the material cup body, the cup bottom part of the material cup body or the cutter head body extends downwards to form a concave cavity, the wall of the concave cavity is in sealing connection with the upper top part of the machine base or the outer edge of the machine base, or the lower port of the concave cavity is in sealing connection with the upper top part of the machine base or the outer edge of the machine base, and the concave cavity and the space surrounded by the upper top part of the machine base or the outer edge of the machine base form a coupling cavity;

the structural form is four: the upper portion of frame upwards extends and forms the cavity, and the cup body portion of material cup, the bottom of cup portion of material cup or the cutter head body downwardly extending form the cavity, and the cavity that the upper portion of frame upwards extends the formation and cup body portion of material cup, the bottom of cup portion of material cup or the cavity that the cutter head body downwardly extending formed cup body cup joint sealing connection each other or butt joint sealing connection each other, the space that cup joints each other or butt joint each other and enclose constitutes the shaft coupling chamber.

4. The vacuum food stuff grinder-mixer of claim 1 or 2, wherein: the lower air passage is communicated with an air exhaust port of a vacuum pump (11) in the base by adopting one of the following structural forms:

the structure form I: the air exhaust port of the vacuum pump (11) is directly used as a lower air passage, namely the air exhaust port of the vacuum pump (11) penetrates through the upper part or the side wall of the base and is directly communicated with the coupling cavity (53);

5. The vacuum food stuff grinder-mixer of claim 1 or 2, wherein: at least one position of the valve is provided with a valve; the valve is a manual valve or an electric control valve; the specific setting position of the valve adopts one of the following structural forms:

the structural form is three: the valve is arranged on the lower air passage;

6. The vacuum food stuff grinder-mixer of claim 1 or 2, wherein: the lower air passage is provided with an opening in the coupler cavity, and the horizontal height of the opening is positioned at the higher position in the coupler cavity.

7. The vacuum food grinder-mixer of claim 6, wherein: the opening is also provided with a gas-water separation device or a breathable waterproof device for preventing the foodstuff liquid from entering the vacuum pump (11).

8. The vacuum food masher of claim 1, wherein: