Vacuum food crushing and mixing machine

Abstract

An embodiment of the present invention relates to a vacuum food pulverizer and mixer, comprising a motor, a cutter, a cutter shaft, a material cup, an exhaust air circuit, and an exhaust device. The cutter is connected to the cutter shaft. The motor can drive the cutter disposed within the material cup to rotate via the cutter shaft, and the cutter can pulverize food into liquid food when rotating. The exhaust air circuit is used to evacuate air from the material cup. The exhaust air circuit includes a first end and a second end. The first end is connected to the exhaust device, and the second end is disposed within the sealable material cup. The second end of the exhaust air circuit is provided with an air-permeable and water-tight device, and when in use, the second end is located below the liquid level of the food. This vacuum food pulverizer and mixer is easy to clean, sturdy, and reliable, and does not affect the food pulverization effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of food processing machines, and in particular relates to a vacuum food pulverizing and mixing machine which pulverizes and / or mixes food under vacuum conditions. Background Art

[0002] When food is crushed, its fine particles come into contact with oxygen in the air or dissolved oxygen in water, which easily causes enzymatic browning, resulting in nutrient loss and taste changes in fruits and vegetables. An effective way to solve the above problem is to isolate the food from oxygen in the air or dissolved oxygen in water as much as possible during the crushing process.

[0003] The prior art provides a vacuum food processor, which includes a motor, a machine base, a cutter, a vacuum pump, an upper exhaust air path, a lower exhaust air path, a cutter disc and a material cup. The material cup is above the cutter disc, and a sealed transmission device cavity is formed between the cutter disc and the machine base. The motor drives the cutter to rotate through a transmission device in the transmission device cavity. The upper end of the upper exhaust air path is connected to the material cup, and the lower end is connected to the transmission device cavity. The upper end of the lower exhaust air path is connected to the transmission device cavity, and the lower end is connected to the vacuum pump. Thus, the vacuum pump can provide a vacuum environment for the material cup. This device has obvious disadvantages. The upper end of the upper exhaust air path must be located above the food liquid to prevent the food liquid from being sucked into the air path. This makes the upper exhaust air path very high, inconvenient to clean, and easy to damage, affecting the effect of the cutter in crushing the food. In particular, for a portable juicer-type vacuum food processor, the whole machine is small and the space in the material cup is very limited. The use of such an overly long exhaust air path is very unfavorable for putting in food, and it seriously interferes with the cutter in crushing the food, affecting the user experience and the effect of the food crushing. Summary of the Invention

[0004] In view of this, the present invention proposes a vacuum food grinder and mixer to solve the above technical problems.

[0005] The present invention is creatively proposed based on the following research findings of the inventors: those skilled in the art generally believe that the upper end of the upper exhaust air circuit in the vacuum food processor mentioned in the background art should be located above the food liquid. Although the prior art provides air-permeable and water-tight devices, which are used at the exhaust port of the exhaust air circuit to prevent liquid from splashing into the air circuit, those skilled in the art have never considered positioning the exhaust port of the exhaust air circuit below the liquid level of the food liquid. This is because those skilled in the art generally believe that if the exhaust port of the exhaust air circuit is located below the liquid level of the food liquid, the liquid seal will cause the vacuum pump's exhaust efficiency to be extremely low, making it impossible to provide a meaningful vacuum environment. However, the inventors discovered that this is not the case. In fact, when the cutter rotates at high speed to crush the food, the food liquid in the material cup is in a state of gas-water mixture under the stirring action of the cutter. When the air suction port of the air suction path is set below the liquid level of the food liquid and an air-permeable and water-tight device is provided at one end of the air suction port of the air suction path, not only will the liquid not be sucked into the air suction path during vacuuming, but the vacuuming efficiency will not be affected as seriously as is generally believed.

[0006] Therefore, the inventor broke through the traditional cognition and set an air-permeable and water-tight device at the second end of the vacuum air path (the second end is located in the material cup body) and set it below the liquid level of the food liquid, so that the height of the vacuum air path in the material cup body is greatly reduced, thereby overcoming the shortcomings of this type of vacuum food processor in the prior art, providing a better user experience, easier cleaning, more sturdy and reliable, and will not affect the vacuum crushing effect of the food.

[0007] <1> A vacuum food pulverizer and mixer comprises a motor, a cutter, a cutter shaft, a material cup, an exhaust air path and an exhaust device, wherein the cutter is connected to the cutter shaft;

[0008] The motor can drive the cutter provided in the material cup body to rotate via the cutter shaft, and the cutter can crush the food into food liquid when rotating;

[0009] The exhaust air circuit is used to exhaust air from the material cup body. The exhaust air circuit includes a first end and a second end. The first end is connected to the exhaust device, and the second end is arranged in the sealable material cup body. The second end of the exhaust air circuit is provided with an air-permeable and water-tight device, and when in use, the second end is located below the liquid level of the food liquid.

[0010] <2> like <1> In the vacuum food grinder and mixer, the distance between the top of the second end and the bottom surface of the material cup body is less than 8 cm, preferably less than 6 cm, more preferably less than 5 cm, more preferably less than 4 cm, more preferably less than 3 cm, and most preferably less than 2 cm.

[0011] <3> like <1> or <3> In the vacuum food pulverizing and mixing machine, the air-permeable and water-tight device is a waterproof air-permeable membrane or waterproof air-permeable microporous ceramic or waterproof air-permeable microporous plastic; and / or,

[0012] The air-permeable and water-tight device is arranged at the air extraction port at the second end of the air extraction path; and / or,

[0013] The motor can drive the cutter arranged in the material cup body to rotate via the magnetic coupling.

[0014] <4> like <1> In the vacuum food pulverizer, the cutter is connected to the cutter shaft via a cutter clutch. The cutter clutch has a disengaged state and an engaged state. When the cutter clutch is in the disengaged state, the cutter cannot rotate under the drive of the motor. When the cutter clutch is in the engaged state, the cutter can rotate under the drive of the motor.

[0015] <5> like <1> The vacuum food pulverizing and blending machine further comprises a machine base, the material cup body is arranged above the machine base, and the motor and the air extraction device are arranged in the machine base.

[0016] <6> like <5> In the vacuum food pulverizing and mixing machine, a transmission device cavity is formed between the machine base and the material cup body, and the motor and the cutter shaft are driven and connected via a transmission device arranged in the transmission device cavity.

[0017] <7> like <1> The vacuum food pulverizer and mixer further includes a machine base and a cutter disc body, wherein the cutter disc body is arranged on the machine base, the material cup body is arranged on the cutter disc body, the cutter shaft sliding seal passes through the cutter disc body, the motor and the air extraction device are arranged in the machine base, a transmission device cavity is formed between the machine base and the cutter disc body, and the motor and the cutter shaft are driven and connected via a transmission device arranged in the transmission device cavity.

[0018] <8> like <6> or <7> In the vacuum food pulverizing and blending machine, the transmission device includes a first half coupling and a second half coupling, the first half coupling is connected to the knife shaft, and the second half coupling is connected to the drive shaft of the motor.

[0019] <9> like <8> The vacuum food pulverizer is characterized in that the transmission device cavity is sealed, and the air exhaust path includes a lower air exhaust path and an upper air exhaust path. The first end of the air exhaust path is located in the lower air exhaust path, and the upper opening of the lower air exhaust path is connected to the transmission device cavity. The second end of the air exhaust path is located in the upper air exhaust path, and the lower opening of the upper air exhaust path is connected to the transmission device cavity. The transmission device cavity is located between the lower air exhaust path and the upper air exhaust path, and constitutes a part of the air exhaust path.

[0020] <10> like <1> In the vacuum food pulverizing and mixing machine, the blade shaft is a hollow blade shaft, the hollow blade shaft constitutes a part of the air extraction path, and the second end of the air extraction path is the upper end of the hollow blade shaft; or,

[0021] The blade shaft is a hollow blade shaft, and at least a portion of the air extraction path is formed by an air extraction pipe passing through the hollow blade shaft;

[0022] The driving shaft of the motor is a hollow driving shaft, which constitutes a part of the air extraction path and is connected to the air extraction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of Example 1 of the present invention.

[0024] Figure 2 This is a structural diagram of Example 2 of the present invention.

[0025] Figure 3 This is a structural diagram of Example 3 of the present invention.

[0026] Figure 4 This is a structural diagram of Example 4 of the present invention.

[0027] Figure 5a This is a structural diagram of Example 5 of the present invention.

[0028] Figure 5b This is a structural diagram of Example 5 of the present invention.

[0029] Figure 6 This is a structural diagram of Example 6 of the present invention.

[0030] Figure 7 This is a structural diagram of Example 7 of the present invention.

[0031] Figure 8 This is a structural diagram of Example 8 of the present invention.

[0032] Figure 9 This is a structural diagram of Example 9 of the present invention. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings. However, those skilled in the art will appreciate that the present invention is not limited to the accompanying drawings and the following embodiments. It should be noted that the embodiments of the present invention and the features therein may be combined with each other unless there is a conflict.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first", "second" and the like may explicitly or implicitly include one or more of the features. In the description of the invention, unless otherwise specified, "multiple" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0036] The control circuit board described in the present invention refers to an electronic control device for controlling the vacuum food grinder and mixer of the present invention. It can be a tangible circuit control board or an electronic control module capable of achieving equivalent control functions, etc.

[0037] A transmission is an intermediate device that transfers the motion and power of the prime mover to the working mechanism. Mechanical transmissions can be categorized by the method of power transmission: friction, chain, gear, belt, worm gear, ratchet, crankshaft-connecting rod, pneumatic, hydraulic, universal joint, cable, coupling, and spline.

[0038] In addition, the full text of Chinese patent application CN107157356A is cited herein as part of the present invention. To save space, the original text is not reproduced here.

[0039] An embodiment of the present invention proposes a vacuum food grinder and mixer, comprising a motor, a cutter, a cutter shaft, a material cup body, an exhaust air path and an exhaust device, wherein the cutter is connected to the cutter shaft; the motor can drive the cutter arranged in the material cup body to rotate through the cutter shaft, and the cutter can grind the food into food liquid when rotating; the exhaust air path is used to exhaust air from the material cup body, and the exhaust air path includes a first end and a second end, the first end is connected to the exhaust device, and the second end is arranged in the sealable material cup body, the second end of the exhaust air path is provided with an air-permeable and water-tight device, and when in use, the second end is located below the liquid level of the food liquid.

[0040] Preferably, the distance between the top of the second end and the bottom surface of the cup body is less than 8 cm, preferably less than 6 cm, more preferably less than 5 cm, more preferably less than 4 cm, more preferably less than 3 cm, and most preferably less than 2 cm, wherein the top refers to the highest point of the second end.

[0041] The vacuum food pulverizing and mixing machine of the embodiment of the present invention can be implemented in various structures. Figures 1-9 , which is described in detail in different embodiments.

[0042] Example 1

[0043] Reference Figure 1 The present embodiment provides a vacuum food pulverizer and mixer, comprising a motor 10, a cutter 20, a cutter shaft 30, a material cup body 40, an exhaust air path 50, an exhaust device 60 and a machine base 70. The motor 10 and the exhaust device 60 are arranged in the machine base 70, and the cutter 20 is connected to the cutter shaft 30; the motor 10 can drive the cutter 20 arranged in the material cup body 40 to rotate through the cutter shaft 30, and the cutter 20 can grind the food into a food liquid when rotating; the material cup body 40 is arranged above the machine base 70, and the machine base 70 has an upper cover, and the material cup body 40 is an inverted material cup body 40, and the lower end of the material cup body 40 is open. The lower end of the material cup body 40 is sealed and detachably connected to the machine base 70. The material cup body 40 and the upper cover of the machine base 70 enclose a sealed grinding chamber for crushing food materials. The cutter shaft 30 slides and seals through the upper cover of the machine base 70 and extends into the material cup body 40. The exhaust air path 50 is used to exhaust air from the material cup body 40. The exhaust air path 50 includes a first end 51 and a second end 52. The first end 51 is connected to the exhaust device 60, and the second end 52 is disposed in the sealable material cup body 40. The second end 52 of the exhaust air path 50 is provided with an air-permeable and water-tight device. When in use, the second end 52 is located below the liquid level of the food material. Preferably, the air-permeable and water-tight device is provided at the exhaust port 54 of the second end 52.

[0044] The drive shaft of the motor 10 can be directly connected to the cutter shaft 30, or it can be connected to the cutter shaft 30 through a transmission device (such as a coupling, a gear transmission device, or a belt transmission device). In one embodiment, the motor 10 is driven to connect to the cutter shaft 30 through a coupling, and the coupling is, for example, a magnetic coupling, which can be arranged in the machine base 70.

[0045] Preferably, the distance between the top of the second end 52 and the bottom surface of the cup body 40 is less than 8 cm, preferably less than 6 cm, more preferably less than 5 cm, more preferably less than 4 cm, more preferably less than 3 cm, and most preferably less than 2 cm. The top refers to the highest point of the second end 52.

[0046] Preferably, the tool 20 is connected to the tool shaft 30 via a tool clutch, and the tool clutch has a disengaged state and an engaged state. When the tool clutch is in the disengaged state, the tool 20 cannot rotate under the drive of the motor 10. When the tool clutch is in the engaged state, the tool 20 can rotate under the drive of the motor 10.

[0047] Example 2

[0048] Reference Figure 2 The present embodiment provides a vacuum food pulverizing and mixing machine, comprising a motor 10, a cutter 20, a cutter shaft 30, a material cup body 40, an exhaust air path 50, an exhaust device 60 and a machine base 70. The motor 10 and the exhaust device 60 are arranged in the machine base 70, and the cutter 20 is connected to the cutter shaft 30; the motor 10 can drive the cutter 20 arranged in the material cup body 40 to rotate through the cutter shaft 30, and the cutter 20 can grind the food into a food liquid when rotating; the material cup body 40 is arranged above the machine base 70, and the material cup body 40 is an upper open material cup body 40, including a cup body 41 and a cup cover 42, and the cup body 41 The cup body 40 has an open top, and the cup lid 42 is sealed and detachably connected to the upper end of the cup body. The lower end of the cup body 40 is connected to the machine base 70, and a sealable food material grinding chamber is formed in the cup body 40. The lower end of the cup body 40 can be an open structure or have a cup bottom. The exhaust air path 50 is used to exhaust the cup body 40. The exhaust air path 50 includes a first end 51 and a second end 52. The first end 51 is connected to the exhaust device 60, and the second end 52 is set in the sealable cup body. The second end 52 of the exhaust air path 50 is provided with an air-permeable and water-tight device, and when in use, the second end 52 is located below the liquid level of the food liquid. Preferably, the air-permeable and water-tight device is provided at the exhaust port of the second end 52.

[0049] In one embodiment, the lower end of the material cup body 40 is an open structure, and the lower end of the material cup body 40 is sealed with the machine base 70. The machine base 70 has an upper cover. The material cup body 40 and the upper cover of the machine base 70 enclose a crushing chamber that can be sealed to crush food. The knife shaft 30 slides and seals through the upper cover of the machine base 70 and extends into the material cup body 40.

[0050] In another embodiment, the material cup body has a cup bottom, the lower end of the material cup body is connected to the machine base, the machine base may have an upper cover or not, and a crushing chamber that can be sealed to crush food is formed in the material cup body, and the knife shaft slides and seals through the cup bottom of the material cup body.

[0051] The drive shaft of the motor 10 can be directly connected to the cutter shaft 30, or it can be connected to the cutter shaft through a transmission device (such as a gear transmission device, a belt transmission device). In one embodiment, the motor drives the cutter shaft through a coupling, and the coupling is, for example, a magnetic coupling, which can be arranged in the machine base.

[0052] Preferably, the distance between the top of the second end 52 and the bottom surface of the cup body 40 is less than 8 cm, preferably less than 6 cm, more preferably less than 5 cm, more preferably less than 4 cm, more preferably less than 3 cm, and most preferably less than 2 cm, wherein the top refers to the highest point of the second end.

[0053] Preferably, the tool 20 is connected to the tool shaft 30 via a tool clutch, and the tool clutch has a disengaged state and an engaged state. When the tool clutch is in the disengaged state, the tool 20 cannot rotate under the drive of the motor 10. When the tool clutch is in the engaged state, the tool 20 can rotate under the drive of the motor 10.

[0054] Example 3

[0055] The present embodiment provides a vacuum food crushing and mixing machine, comprising a motor 10, a cutter 20, a cutter shaft 30, a material cup body 40, an exhaust air path 50, an exhaust device 60 and a machine base 70. The motor 10 and the exhaust device 60 are arranged in the machine base 70, and the cutter 20 is connected to the cutter shaft 30; the motor 10 can drive the cutter 20 arranged in the material cup body 40 to rotate through the cutter shaft 30, and the cutter 20 can crush the food to form a food liquid when rotating; the material cup body 40 is arranged above the machine base 70, and the material cup body 40 and the machine base 70 are an integrated structure. The material cup body 40 has an upper opening above the machine base, and the cup cover is sealed and detachably connected to the material cup. The upper end of the cup body 40 and the lower end of the material cup body 40 are sealed and separated from the machine base 70 by a partition 71. The material cup body 40, the partition 71, and the cup lid enclose a sealed grinding chamber for crushing the food material. The blade shaft 30 slides and seals through the partition 71 and extends into the material cup body 40. The exhaust air path 50 is used to exhaust the material cup body 40. The exhaust air path 50 includes a first end 51 and a second end 52. The first end 51 is connected to the exhaust device 60, and the second end 52 is disposed in the sealable material cup body 40. The second end 52 of the exhaust air path 50 is provided with an air-permeable and water-tight device. When in use, the second end 52 is located below the liquid level of the food material. Preferably, the air-permeable and water-tight device is provided at the exhaust port of the second end 52.

[0056] The drive shaft of the motor 10 can be directly connected to the cutter shaft 30, or it can be connected to the cutter shaft through a transmission device (such as a coupling, a gear transmission device, or a belt transmission device). In one embodiment, the motor drives the cutter shaft 30 through a coupling, and the coupling is, for example, a magnetic coupling, which can be arranged in the machine base (i.e., below the partition 71).

[0057] Preferably, the distance between the top of the second end 52 and the bottom surface of the cup body 40 is less than 8 cm, preferably less than 6 cm, more preferably less than 5 cm, more preferably less than 4 cm, more preferably less than 3 cm, and most preferably less than 2 cm. The top refers to the highest point of the second end 52.

[0058] Preferably, the tool 20 is connected to the tool shaft 30 via a tool clutch, and the tool clutch has a disengaged state and an engaged state. When the tool clutch is in the disengaged state, the tool 20 cannot rotate under the drive of the motor 10. When the tool clutch is in the engaged state, the tool 20 can rotate under the drive of the motor 10.

[0059] Example 4

[0060] Reference Figure 4, this embodiment proposes a vacuum food crushing and mixing machine, including a motor 10, a cutter 20, a cutter shaft 30, a material cup body 40, an exhaust air path 50, an exhaust device 60 and a machine base 70, wherein the motor 10 and the exhaust device 60 are arranged in the machine base 70, and the cutter 20 is connected to the cutter shaft 30; the motor 10 can drive the cutter 20 arranged in the material cup body 40 to rotate through the cutter shaft 30, and the cutter 20 can crush the food to form a food liquid when rotating; the material cup body 40 is arranged above the machine base 70, and the material cup body 40 is an upper open material cup body 40, including a cup body 41, a cup cover 42 and a cup bottom 43, the cup body 41 has an upper opening, and the cup cover 42 is sealed and detachably connected to the upper end of the cup body 41, the lower end of the material cup body 40 is connected to the machine base 70, and the material cup body 4 0 forms a sealable food material crushing chamber; the machine base 70 has an upper cover, and the blade shaft 30 slides and seals through the bottom of the cup body 40; a transmission device chamber M is formed between the cup body 40 and the machine base 70, and the transmission device chamber M is used to accommodate the transmission device 90. The motor 10 and the blade shaft 30 are driven and connected by the transmission device 90, so that the motor 10 can drive the blade 20 to rotate through the transmission device 90; the exhaust air path 50 is used to exhaust the cup body 40. The exhaust air path 50 includes a first end 51 and a second end 52. The first end 51 is connected to the exhaust device 60, and the second end 52 is disposed in the sealable cup body 40. The second end 52 of the exhaust air path 50 is provided with an air-permeable and water-tight device, and when in use, the second end 52 is located below the liquid level of the food liquid. Preferably, the air-permeable and water-tight device is provided at the exhaust port of the second end 52.

[0061] The transmission device 90 is, for example, a coupling, a gear transmission device, or a belt transmission device.

[0062] In one embodiment, the transmission device is a coupling, which includes a first half-coupling and a second half-coupling. The lower end of the knife shaft is connected to the first half-coupling, and the drive shaft of the motor is connected to the second half-coupling. The first half-coupling and the second half-coupling are connected in the transmission device cavity to form a coupling. The coupling can transmit the power output by the drive shaft of the motor to the knife shaft connected to the tool.

[0063] In another embodiment, the coupling may also be a magnetic coupling, and the magnetic coupling is disposed in the transmission cavity.

[0064] The exhaust gas path 50 can pass through the transmission device cavity M (such as Figure 4 As shown), it can also be implemented as including a lower exhaust gas path and an upper exhaust gas path (as shown Figure 5a 、 Figure 5b 、 Figure 6(As shown), the first end of the exhaust air path is located in the lower exhaust air path, the upper opening of which communicates with the transmission device chamber. The second end of the exhaust air path is located in the upper exhaust air path, the lower opening of which communicates with the transmission device chamber. The transmission device chamber is located between the lower and upper exhaust air paths and constitutes a portion of the exhaust air path. In this embodiment, the transmission device chamber is in a vacuum negative pressure state during operation, tightly sucking the material cup body and the machine base together. This not only ensures a simple and reliable sealing connection of the exhaust air path, but also eliminates the need for a screw-fastener device between the material cup body and the machine base.

[0065] Preferably, the distance between the top of the second end 52 and the bottom surface of the cup body 40 is less than 8 cm, preferably less than 6 cm, more preferably less than 5 cm, more preferably less than 4 cm, more preferably less than 3 cm, and most preferably less than 2 cm. The top refers to the highest point of the second end 52.

[0066] Preferably, the tool 20 is connected to the tool shaft 30 via a tool clutch, and the tool clutch has a disengaged state and an engaged state. When the tool clutch is in the disengaged state, the tool 20 cannot rotate under the drive of the motor 10. When the tool clutch is in the engaged state, the tool 20 can rotate under the drive of the motor 10.

[0067] Example 5

[0068] Reference Figure 5a 、 Figure 5b, this embodiment proposes a vacuum food crushing and mixing machine, including a motor 10, a cutter 20, a cutter shaft 30, a material cup body 40, a cutter disc body 80, an exhaust air path, an exhaust device 60 and a machine base 70, wherein the motor 10 and the exhaust device 60 are arranged in the machine base 70, and the cutter 20 is connected to the cutter shaft 30; the motor 10 can drive the cutter 20 arranged in the material cup body 40 to rotate through the cutter shaft 30, and the cutter 20 can crush the food to form a food liquid when rotating; the material cup body 40 is arranged above the cutter disc body 80, and the cutter disc body 80 is arranged above the machine base 70; the material cup body 40 is an inverted material cup body 40, and the lower end of the material cup body 40 is an open structure. The lower end of the material cup body 40 is sealed and detachably connected to the cutter disc body 80, and the material cup body 40 and the cutter disc body 80 enclose a structure The machine base 70 has an upper cover, and a transmission chamber M is formed between the cutter head 80 and the machine base 70. The transmission chamber M is used to accommodate a transmission device 90. The motor 10 is connected to the cutter shaft 30 through the transmission device 90, so that the motor 10 can drive the cutter 20 to rotate through the transmission device 90. The exhaust air circuit is used to exhaust air from the material cup 40. The exhaust air circuit includes a first end 51 and a second end 52. The first end 51 is connected to the exhaust device 60, and the second end 52 is disposed in the sealable material cup 40. The second end 52 of the exhaust air circuit is provided with an air-permeable and water-tight device. When in use, the second end 52 is located below the liquid level of the food liquid. Preferably, the air-permeable and water-tight device is provided at the exhaust port of the second end 52.

[0069] The transmission device 90 is, for example, a coupling, a gear transmission device, or a belt transmission device.

[0070] In one embodiment, the transmission device 90 is a coupling, and the coupling includes a first half coupling 91 and a second half coupling 92 (e.g., Figure 5b As shown), the lower end of the knife shaft 30 is connected to the first half coupling 91, and the driving shaft of the motor 10 is connected to the second half coupling 92. The first half coupling 91 and the second half coupling 92 are connected in the transmission device cavity M to form a coupling, which can transmit the power output by the driving shaft of the motor 10 to the knife shaft 30 connected to the tool 20.

[0071] In another embodiment, the coupling may also be a magnetic coupling (not shown in the figure), and the magnetic coupling is arranged in the transmission device cavity.

[0072] The exhaust gas path can pass through the transmission device cavity M (such as Figure 4 As shown), it can also be implemented as including a lower exhaust gas path D and an upper exhaust gas path U (as shown Figure 5a 、 Figure 5b 、 Figure 6 As shown in FIG. 5 , the first end 51 of the air extraction circuit is located in the lower air extraction circuit D, the upper opening of which is in communication with the transmission device chamber M. The second end 52 of the air extraction circuit is located in the upper air extraction circuit U, at least a portion of which is located within the material cup body, and the lower opening of which is in communication with the transmission device chamber M. The transmission device chamber M is located between the lower air extraction circuit D and the upper air extraction circuit U, constituting a portion of the air extraction circuit. The second end 52 is provided with an air-permeable and water-impermeable device. Preferably, the air-permeable and water-impermeable device is provided at the air extraction port of the second end 52.

[0073] Preferably, the distance between the top of the second end 52 and the bottom surface of the cup body 40 is less than 8 cm, preferably less than 6 cm, more preferably less than 5 cm, more preferably less than 4 cm, more preferably less than 3 cm, and most preferably less than 2 cm. The top refers to the highest point of the second end 52.

[0074] Preferably, the tool 20 is connected to the tool shaft 30 via a tool clutch, and the tool clutch has a disengaged state and an engaged state. When the tool clutch is in the disengaged state, the tool 20 cannot rotate under the drive of the motor 10. When the tool clutch is in the engaged state, the tool 20 can rotate under the drive of the motor 10.

[0075] Example 6

[0076] Reference Figure 6 This embodiment provides a vacuum food grinder and mixer, which differs from Example 5 in that the material cup body 40 is an upper open material cup body, and the material cup body structure is the same as that of Example 2. The connection relationship between the material cup body 70 and the cutter disc body 80 is similar to the connection relationship between the material cup body 40 and the machine base 70 in Example 2, and will not be repeated.

[0077] The remaining features are the same as those in Example 2 and will not be described in detail.

[0078] Example 7

[0079] Reference Figure 7 This embodiment provides a vacuum food grinder and mixer, which differs from Example 2 in that the machine base 70 is L-shaped and includes a transverse portion and a longitudinal portion, the material cup body 40 is located above the transverse portion and to the side of the longitudinal portion, the motor is arranged in the longitudinal portion, and the motor is driven and connected to the knife shaft 30 via a transmission device; the exhaust device 60 can be arranged in either the transverse portion or the longitudinal portion.

[0080] The remaining features are the same as those in Example 2 and will not be described in detail.

[0081] Example 8

[0082] Reference Figure 8 This embodiment provides a vacuum food pulverizer and mixer. This embodiment differs from Embodiment 5 in the structure of the upper exhaust air path U. Specifically, in this embodiment, the upper exhaust air path U is formed by a hollow blade shaft 30. The second end of the exhaust air path is located at the upper end of the hollow blade shaft 30, and the lower end of the hollow blade shaft 30 is connected to the transmission device chamber M.

[0083] In another embodiment, the blade shaft is a hollow blade shaft, and at least a portion of the air extraction path is formed by an air extraction pipe passing through the hollow blade shaft.

[0084] Example 9

[0085] Reference Figure 9 This embodiment provides a vacuum food pulverizer and mixer. This embodiment differs from Example 5 in the structure of the lower exhaust air circuit D. Specifically, in this embodiment, the drive shaft of the motor 10 is a hollow drive shaft. The lower exhaust air circuit D comprises the hollow drive shaft of the motor 10. One end of the hollow drive shaft is connected to the transmission chamber M, and the other end is connected to the exhaust device 60. Preferably, the opening at the other end of the hollow drive shaft is connected to the exhaust device 60 via a rotary seal joint N, and the hollow drive shaft and the rotary seal joint N are connected in a sliding and sealing manner. Furthermore, an I-shaped air inlet valve 44 is provided on the lid 42 of the material cup 40.

[0086] The remaining features are the same as those in Example 5 and will not be described in detail.

[0087] Those skilled in the art will appreciate that due to the wide variety of mechanical structure configurations and connection methods, it is difficult to enumerate all of them in the present invention. Therefore, any equivalent substitutions or obvious modifications of various mechanical structures within the spirit of the present invention are within the scope of the present invention. The following is a detailed description of some mechanical structures for illustrative purposes only to help those skilled in the art better understand the present invention and is not intended to limit the present invention.

[0088] Breathable and waterproof device

[0089] The air-permeable and water-tight devices are all products available in the prior art, such as waterproof breathable membranes (such as polytetrafluoroethylene waterproof breathable membranes), waterproof breathable microporous ceramics, waterproof breathable microporous plastics, etc. These devices are all commercially available products and will not be described in detail.

[0090] The air-permeable and water-tight device is arranged at the second end of the air extraction path, preferably at the air extraction port at the second end. The air extraction port can be opened at the top end of the second end of the air extraction path (such as Figure 1 As shown), it can also be opened on the side wall of the second end.

[0091] Motor drive shaft

[0092] In an embodiment of the present invention, the driving shaft of the motor may extend upwardly out of the machine base, or may not extend upwardly out of the upper part of the machine base, but transmit power to the knife shaft through any one or more mechanical transmission devices in the machine base.

[0093] exhaust device

[0094] The vacuum device is used to exhaust air from the material cup body, such as a vacuum pump. The vacuum pump can be a miniature electric vacuum pump with a motor, or a miniature vacuum pump with an external power source. The power source is, for example, a motor, which can be driven by gears or belts to provide power for the vacuum pump. The exhaust port of the vacuum pump can be connected to the atmosphere directly or through an exhaust pipe.

[0095] Exhaust air line

[0096] The exhaust gas circuit of the embodiment of the present invention can be composed of a single exhaust pipe (for example Figures 1-4 、 Figure 7 ), or it may be composed of an upper air pumping path, a transmission cavity, and a lower air pumping path (e.g. Figure 5a 、 Figure 5b 、 Figure 6 、 Figure 8 、 Figure 9 ).

[0097] The exhaust air path can be composed of an exhaust pipe arranged outside the circumference of the tool movement trajectory, or it can be composed of a hollow tool shaft and / or a hollow drive shaft of the motor; an exhaust pipe can also be arranged inside the hollow tool shaft and / or the motor drive shaft, and the exhaust pipe inside the hollow tool shaft is connected to the hollow tool shaft or not.

[0098] The upper exhaust gas circuit may adopt one of the following structural forms, for example:

[0099] Structural form 1: The upper exhaust air circuit is an exhaust pipe, which is installed on the cutter head body. The part of the exhaust pipe located in the crushing chamber avoids the rotating area of the cutter;

[0100] Structural form 2: The blade shaft is a hollow blade shaft, which itself constitutes the upper exhaust air path, that is, the portion of the hollow blade shaft located in the transmission device cavity has an opening so that the hollow blade shaft and the transmission device cavity are connected. The hollow blade shaft passes through the blade, and the portion of the hollow blade shaft located in the material cup body serves as the second end of the exhaust air path and is arranged below the liquid level of the food in the grinding chamber;

[0101] Structural form three: The blade shaft is a hollow blade shaft, which passes through the blade and is fixedly, detachably, or rotatably sealedly connected to an exhaust pipe. The internal channel of the exhaust pipe and the internal channel of the hollow blade shaft are interconnected to form the upper exhaust air path. The portion of the exhaust pipe located within the material cup body serves as the second end of the exhaust air path and is arranged below the food liquid level in the grinding chamber. The portion of the hollow blade shaft located within the transmission device cavity is provided with an opening to connect the hollow blade shaft with the transmission device cavity.

[0102] Structural form four: The blade shaft is a hollow blade shaft, which passes through the blade and is fixedly connected, detachably connected, or rotatably sealed to an exhaust pipe. The internal channel of the exhaust pipe and the internal channel of the hollow blade shaft are interconnected to form the upper exhaust air path. The portion of the exhaust pipe located within the material cup body serves as the second end of the exhaust air path and is arranged below the food liquid level in the grinding chamber. The exhaust pipe passes through the hollow blade shaft, and the lower end of the exhaust pipe extends into the transmission device cavity and is connected thereto.

[0103] Structural form five: The material cup body is provided with a side handle, and the upper exhaust air path passes through the inside of the side handle of the material cup body and extends upward into the grinding chamber. The portion of the upper exhaust air path located inside the material cup body serves as the second end of the exhaust air path and is arranged below the liquid level of the food in the grinding chamber. Preferably, the portion of the upper exhaust air path located inside the transmission device cavity is provided with an opening so that the upper exhaust air path and the transmission device cavity are connected. Preferably, the upper exhaust air path is an exhaust pipe.

[0104] Structural form six: The upper air suction path extends upward along the inner wall of the material cup body or the outer wall of the material cup body, and then extends into the grinding chamber at the lower part of the material cup body, and the upper opening of the upper air suction path is arranged above the food liquid level in the grinding chamber; preferably, the upper air suction path is provided with an opening at the position inside the transmission device cavity and the upper air suction path is connected to the transmission device cavity; preferably, the upper air suction path is an air suction pipe.

[0105] The communication mode between the lower exhaust gas path and the exhaust port of the exhaust device may adopt one of the following structural forms:

[0106] Structural form 1: The air outlet of the air exhaust device directly serves as the lower air exhaust path, that is, the air outlet of the air exhaust device passes through the upper part or side wall of the machine base and is directly connected to the transmission device cavity;

[0107] Structural form 2: The air extraction port of the air extraction device is connected to the transmission device cavity via an air extraction pipe passing through the upper part or side wall of the machine base;

[0108] Structural form three: The interior space of the machine base is a closed space, the motor shaft of the tool motor is a hollow motor shaft, the portion of the hollow motor shaft located in the transmission device cavity has an opening and is connected to the transmission device cavity, the portion of the hollow motor shaft located in the machine base has an opening and is connected to the interior space of the machine base, and the air extraction port of the air extraction device is connected to the interior space of the machine base;

[0109] Structural form 4: The drive shaft of the motor is a hollow drive shaft, and the portion of the hollow drive shaft located in the transmission device cavity is provided with an opening and communicates with the transmission device cavity; the portion of the hollow drive shaft located in the machine base has an opening, and the opening is directly and slidingly sealedly communicated with the air extraction port of the air extraction device via a rotary sealing joint, or the opening is slidingly and sealingly communicated with one end of an air extraction pipe via a rotary sealing joint, and the other end of the air extraction pipe is communicated with the air extraction port of the air extraction device;

[0110] Structural form five: The internal space of the machine base is a closed space, there is a penetrating air hole between the transmission device cavity and the internal space of the machine base and they are connected to each other, and the air extraction port of the air extraction device is connected to the internal space of the machine base.

[0111] When the internal space of the machine base is a sealed space, there may also be an air hole penetrating between the transmission device cavity and the internal space of the machine base (for example, provided on the upper cover of the machine base), so that the transmission device cavity and the interior of the machine base are connected to each other, the air extraction port of the air extraction device is connected to the internal space of the machine base (the internal space of the machine base constitutes the second end of the air extraction air path), and the exhaust port of the air extraction device is connected to the outside atmosphere directly or through an exhaust pipe. When extracting air, the air in the sealed machine base is first extracted, and then the air in the transmission device cavity is extracted (in this case, regardless of whether the motor shaft of the motor is hollow, the transmission device cavity can be vacuumed).

[0112] Furthermore, when the air suction path includes an upper air suction path, a transmission device cavity and a lower air suction path, the lower air suction path has an opening in the transmission device cavity, and the horizontal height of the opening is located at a higher position in the transmission device cavity; preferably, the opening is also provided with an air-permeable and water-tight device to prevent food liquid from entering the air suction device.

[0113] Control circuit board

[0114] In an embodiment of the present invention, a conventional control circuit board can also be provided in the machine base, and the control circuit board is electrically connected to the motor, the vacuum device, the electrically controlled valve, and the like. Control functions include starting and stopping the motor and the vacuum device. The vacuum device can be started and stopped manually, or by time control, air pressure control, or vacuum device motor load current detection control. A microprocessor can also be used for intelligent control of the motor and vacuum device start and stop. Intelligent control methods include: vacuum extraction followed by pulverization, simultaneous vacuum extraction and pulverization, and vacuum preservation. The surface of the machine base is provided with a corresponding control switch or intelligent control panel.

[0115] seal

[0116] When the joints between the material cup body and the machine base, between the material cup body and the cup cover, between the material cup body and the cutter head body, and between the cutter head body and the machine base need to be sealed, silicone or rubber seals (such as rubber sealing pads) can be used to seal the two, or the two can be directly sealed and connected by tight fit, so that the material cup body is sealed or the material cup body and the transmission device cavity are sealed.

[0117] valve

[0118] The vacuum food grinder and mixer is provided with a valve at least one place, and when the valve is opened, gas can enter the material cup body; 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:

[0119] Structural form 1: A through vent hole is opened on the side wall of the material cup body, and the valve is arranged on the passage of the vent hole (such as Figure 5b As shown, an I-shaped air inlet valve 44 is provided on the side wall of the material cup body);

[0120] Structural form 2: The material cup body has a cup cover, the cup cover has a vent hole, the vent hole passes through the cup cover, and the valve is arranged on the passage of the vent hole;

[0121] Structural form three: a through vent hole is provided on the side wall or bottom of the transmission chamber, and the valve is provided on the passage of the vent hole;

[0122] Structural form 4: There is a vent on the cutter head body, the vent runs through the cutter head body, and the valve is arranged on the channel of the vent;

[0123] Structural form 5: The blade shaft is a hollow blade shaft, and the valve is provided at the opening of the hollow blade shaft located in the transmission device cavity;

[0124] Structural form six: the valve is arranged at the air extraction port of the air extraction device;

[0125] Structural form seven: The valve is arranged on the upper air extraction path;

[0126] Structural form eight: the valve is arranged on the lower exhaust gas path;

[0127] Structural form nine: The base is a closed space, the side wall or bottom of the base is provided with a through vent hole, and the valve is arranged on the passage of the vent hole.

[0128] Transmission cavity

[0129] The material cup body and the machine base, the cutter head body and the machine base are sealed and preferably detachably connected to form a sealed transmission device cavity, and one of the following structural forms can be adopted:

[0130] Structural form 1.1: The upper portion of the machine base extends upward to form a concave cavity, and the cup body of the material cup body, the cup bottom of the material cup body, or the cutter disc body extends into the concave cavity; the outer edge of the cup body of the material cup body, the outer edge of the cup bottom of the material cup body, or the outer edge of the cutter disc body are sealedly connected to the concave cavity wall, the concave cavity bottom of the concave cavity, or the concave cavity upper end of the concave cavity, or the bottom of the cup body of the material cup body, the bottom of the cup bottom of the material cup body, or the bottom of the cutter disc body are sealedly connected to the concave cavity wall, the concave cavity bottom of the concave cavity, or the concave cavity upper end of the concave cavity, and the space enclosed by the cup body of the material cup body, the cup bottom of the material cup body, the cutter disc body, and the concave cavity constitutes a coupling cavity;

[0131] Structural form 1.2: The upper portion of the machine base extends upward to form a concave cavity, and the cup body, cup bottom of the cup body, or cutter disc body are butt-connected to the upper end of the concave cavity; the cup body, cup bottom of the cup body, or the outer edge of the cutter disc body are sealed to the concave cavity wall, concave cavity bottom, or concave cavity upper end of the concave cavity, or the cup body, cup bottom of the cup body, or the bottom of the cutter disc body are sealed to the concave cavity wall, concave cavity bottom, or concave cavity upper end of the concave cavity, and the space enclosed by the cup body, cup bottom, or cutter disc body and the concave cavity constitutes a coupling cavity;

[0132] Structural form 2: The upper part of the machine base does not extend upward, and the cup body, the cup bottom of the material cup body, or the cutter head body extend downward to form a concave cavity. The concave cavity wall is sealed with the upper top of the machine base or the outer edge of the machine base, or the lower end of the concave cavity is sealed with the upper top of the machine base or the outer edge of the machine base. The space enclosed by the concave cavity and the upper top of the machine base or the outer edge of the machine base constitutes a coupling cavity.

[0133] Structural form 3: The upper part of the machine base extends upward to form a concave cavity, and the cup body of the material cup body, the cup bottom of the material cup body or the cutter disc body extend downward to form a concave cavity. The concave cavity formed by the upward extension of the upper part of the machine base and the cup body of the material cup body, the cup bottom of the material cup body or the cutter disc body extend downward to form a concave cavity. They are mutually sleeved and sealed or butted together and sealed. The space surrounded by the mutual sleeves or butts constitutes a coupling cavity.

[0134] Furthermore, in an embodiment of the present invention, the vacuum food grinding and mixing machine may further include an air pressure display device in the prior art.

[0135] Furthermore, in an embodiment of the present invention, the material cup body may also adopt a double-layer structure cup body and / or a double-layer structure cup bottom, wherein the middle of the double-layer structure cup body and / or the double-layer structure cup bottom is an air interlayer, a vacuum or filled with other thermal insulation materials.

[0136] Furthermore, in the embodiment of the present invention, a safety switch device is provided at least at one of the intersections of the cup cover and the upper opening (when the material cup body is an upper opening material cup body), the intersection of the material cup body and the machine base, the intersection of the material cup body and the cutter disc body (when there is a cutter disc body), and the intersection of the cutter disc body and the machine base (when there is a cutter disc body). The safety switch device is only turned on when the said intersection is correctly installed.

[0137] Furthermore, the exhaust device extracts the air in the crushing chamber in all, any two or any one of the three stages before, during and after the cutter crushes and stirs the food in the crushing chamber, and keeps the crushing chamber in a vacuum state.

[0138] Furthermore, the material cup body is also provided with a position limiting and anti-shake device for limiting the partial shaking of the upper air suction path in the grinding chamber.

[0139] The above describes the embodiments of the present invention. However, the present invention is not limited to the above embodiments. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A vacuum food grinder and mixer, characterized in that: It includes a motor, a cutter, a cutter shaft, a material cup body, an air extraction circuit and an air extraction device, wherein the cutter is connected to the cutter shaft; The motor can drive the cutter provided in the material cup body to rotate via the cutter shaft, and the cutter can crush the food into food liquid when rotating; The exhaust air path is used to exhaust air from the material cup body, and the exhaust air path includes a first end and a second end, the first end is connected to the exhaust device, and the second end is arranged in the sealable material cup body, and the second end of the exhaust air path is provided with an air-permeable and water-tight device, and when in use, the second end is located below the liquid level of the food liquid; The driving shaft of the motor is directly connected to the cutter shaft, or the driving shaft of the motor is connected to the cutter shaft through a transmission device.

2. The vacuum food pulverizing and mixing machine according to claim 1, characterized in that: The distance between the top of the second end and the bottom surface of the cup body is less than 8 cm.

3. The vacuum food pulverizing and mixing machine according to claim 2, characterized in that: The distance between the top of the second end and the bottom surface of the cup body is less than 6 cm.

4. The vacuum food pulverizing and mixing machine according to claim 3, characterized in that: The distance between the top of the second end and the bottom surface of the cup body is less than 5 cm.

5. The vacuum food pulverizing and mixing machine according to claim 4, characterized in that: The distance between the top of the second end and the bottom surface of the cup body is less than 4 cm.

6. The vacuum food pulverizing and mixing machine according to claim 5, characterized in that: The distance between the top of the second end and the bottom surface of the cup body is less than 3 cm.

7. The vacuum food pulverizing and mixing machine according to claim 6, characterized in that: The distance between the top of the second end and the bottom surface of the cup body is less than 2 cm.

8. The vacuum food grinder and mixer according to any one of claims 1 to 7, characterized in that: The air-permeable and water-tight device is a waterproof breathable membrane or waterproof breathable microporous ceramic or waterproof breathable microporous plastic; and / or, The air-permeable and water-tight device is arranged at the air extraction port at the second end of the air extraction path; and / or, The motor can drive the cutter arranged in the material cup body to rotate via the magnetic coupling.

9. The vacuum food pulverizing and mixing machine according to claim 1, wherein: The tool is connected to the tool shaft via a tool clutch. The tool clutch has a disengaged state and an engaged state. When the tool clutch is in the disengaged state, the tool cannot rotate under the drive of the motor. When the tool clutch is in the engaged state, the tool can rotate under the drive of the motor.

10. The vacuum food pulverizing and mixing machine according to claim 1, wherein: The vacuum food pulverizing and mixing machine further comprises a machine base, the material cup body is arranged above the machine base, and the motor and the air extraction device are arranged inside the machine base.

11. The vacuum food pulverizing and mixing machine according to claim 10, wherein: A transmission device cavity is formed between the machine base and the material cup body, and the motor and the cutter shaft are driven and connected via a transmission device provided in the transmission device cavity; the exhaust air path passes through the transmission device cavity. Alternatively, the transmission device cavity is sealed, and the air pumping path includes a lower air pumping path and an upper air pumping path. The first end of the air pumping path is located in the lower air pumping path, and the upper opening of the lower air pumping path is connected to the transmission device cavity. The second end of the air pumping path is located in the upper air pumping path, and the lower opening of the upper air pumping path is connected to the transmission device cavity. The transmission device cavity is between the lower air pumping path and the upper air pumping path, and constitutes a part of the air pumping path.

12. The vacuum food grinder and mixer according to claim 1, wherein: The vacuum food pulverizing and mixing machine further comprises a machine base and a cutter disc body, wherein the cutter disc body is arranged on the machine base, the material cup body is arranged on the cutter disc body, the cutter shaft sliding seal passes through the cutter disc body, the motor and the air extraction device are arranged in the machine base, a transmission device cavity is formed between the machine base and the cutter disc body, the motor and the cutter shaft are driven and connected via a transmission device arranged in the transmission device cavity; the air extraction air path passes through the transmission device cavity, Alternatively, the transmission device cavity is sealed, and the air pumping path includes a lower air pumping path and an upper air pumping path. The first end of the air pumping path is located in the lower air pumping path, and the upper opening of the lower air pumping path is connected to the transmission device cavity. The second end of the air pumping path is located in the upper air pumping path, and the lower opening of the upper air pumping path is connected to the transmission device cavity. The transmission device cavity is between the lower air pumping path and the upper air pumping path, and constitutes a part of the air pumping path.

13. The vacuum food pulverizing and mixing machine according to claim 1, wherein: The transmission device includes a first half coupling and a second half coupling, wherein the first half coupling is connected to the knife shaft, and the second half coupling is connected to the drive shaft of the motor.

14. The vacuum food grinder and mixer according to claim 1, wherein: The blade shaft is a hollow blade shaft, the hollow blade shaft constitutes a part of the air extraction path, and the second end of the air extraction path is the upper end of the hollow blade shaft; or, The knife shaft is a hollow knife shaft, and at least a part of the exhaust air path is formed by an exhaust pipe passing through the hollow knife shaft; the drive shaft of the motor is a hollow drive shaft, and the hollow drive shaft constitutes a part of the exhaust air path, and the hollow drive shaft is connected to the exhaust device.

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