A food processor

Abstract

The utility model relates to a kind of food processors, including: cabinet, its inside is equipped with the cooking chamber for cooking food, the upper portion of the cooking chamber is equipped with exhaust hole;Negative pressure pump, is located in the cooking chamber outside, and with the exhaust hole communication, for the gas in the cooking chamber is extracted to make cooking chamber inside to be negative pressure state;For preparing food fresh-keeping gas gas generating device;Inside with the air cavity for storing food fresh-keeping gas's gas storage device, air cavity gas inlet with the output end of the gas generating device is communicated, air cavity gas outlet is communicated to the cooking chamber by gas pipeline, and gas pipeline is equipped with for controlling gas flow's flow control valve, when flow control valve opens, the gas storage device is arranged, and food fresh-keeping gas in it can be inhaled into cooking chamber under the action of cooking chamber inside negative pressure.The utility model can reduce the risk of food material being oxidized.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, specifically relating to a food processor. Background Technology

[0002] Most food processors, such as juicers and fruit and vegetable juicers, currently use mechanical principles such as squeezing, blade cutting, and impact to press and extract ingredients.

[0003] During the food preparation process, the food comes into direct contact with air and water. The oxygen in the air and water will react with the food (especially fruits and vegetables) to cause oxidation and browning in easily oxidized foods, affecting the taste and appearance of the food. Utility Model Content

[0004] The technical problem to be solved by this invention is to provide a food processor that reduces the risk of food oxidation, in light of the current state of the technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a food processor, comprising:

[0006] The casing has a cooking chamber inside for cooking food, and the upper part of the cooking chamber has an exhaust vent.

[0007] Its characteristic is that it also includes:

[0008] A negative pressure pump is located outside the cooking chamber and connected to the exhaust port, used to extract the gas inside the cooking chamber to create a negative pressure state inside the cooking chamber.

[0009] Gas generating device for preparing food preservation gases;

[0010] The gas storage device has an internal gas chamber for storing food preservation gas. The gas inlet of the gas chamber is connected to the output end of the gas generator. The gas outlet of the gas chamber is connected to the cooking chamber through a gas pipeline. The gas pipeline is equipped with a flow control valve for controlling the gas flow. When the flow control valve is open, the gas storage device is arranged so that the food preservation gas inside can be drawn into the cooking chamber under the action of negative pressure.

[0011] This invention utilizes a negative pressure pump in conjunction with a gas storage device. The negative pressure pump simultaneously creates a vacuum inside the cooking chamber, while the gas storage device rapidly fills the chamber with food-preserving gas, significantly reducing the oxygen content during food preparation and preventing oxidation. Furthermore, the combination of the gas generator and the gas storage device allows the food-preserving gas generated by the gas generator to be pre-stored in the storage device, ensuring rapid filling of the cooking chamber during food preparation. This reduces the user's waiting time for the food-preserving gas to be prepared and guarantees the concentration and flow rate of the food-preserving gas entering the cooking chamber.

[0012] To enable the gas storage device to be properly filled and discharged, preferably, the gas storage device has a structure in which the volume of its internal air chamber increases when filled and decreases when discharged.

[0013] Preferably, the gas storage device is a flexible airbag that can expand or contract.

[0014] Preferably, the gas storage device is hollow inside and is divided into an independent cavity and the aforementioned gas cavity by a middle piston plate. The cavity is provided with a vent to the outside. The piston plate moves under the drive of the air pressure in the cavities on both sides and the gas cavity, thereby increasing or decreasing the volume of the gas cavity.

[0015] During inflation, the food-preserving gas entering the air chamber pushes the piston plate towards the cavity side, and the air in the cavity is discharged through the vent. During degassing, under the negative pressure in the cooking chamber, the piston plate moves towards the air chamber side, quickly replenishing the cooking chamber with the food-preserving gas from the air chamber, while outside air enters the cavity through the vent.

[0016] In the above scheme, the food preservation gas can be carbon dioxide, nitrogen, etc.

[0017] Preferably, the gas generating device is a device for preparing nitrogen gas using compressed air as raw material.

[0018] The system also includes a three-way valve, whose first inlet is connected to the exhaust port, its second inlet is connected to the oxygen vent of the gas generator, and its first outlet is connected to the negative pressure pump. The three-way valve is used to switch between negative pressure extraction in the cooking chamber and auxiliary oxygen venting from the gas generator.

[0019] Preferably, the bottom of the cooking chamber is provided with an air inlet, which is connected to the outlet end of the gas pipeline. Since the air inlet is located at the bottom of the cooking chamber and can be covered by the water inside the cooking chamber, the food preservation gas output from the inlet can remove oxygen from the water inside the cooking chamber and from the air above the water surface, further reducing the risk of food oxidation.

[0020] Preferably, the exhaust port is equipped with an oxygen sensor for detecting oxygen concentration and a controller for receiving the output signal from the oxygen sensor. The controller is electrically connected to the negative pressure pump, the gas generator, and the flow control valve. This allows the input of food preservation gas to be controlled based on the oxygen content of the gas discharged from the exhaust port.

[0021] In the above embodiments, preferably, the cooking chamber is provided with a wall-breaking blade, which rotates under the drive of the driving mechanism to crush the ingredients in the cooking chamber.

[0022] Preferably, the cooking chamber is defined by a hollow pot body with an open top and a lid covering the top of the pot body.

[0023] Compared with existing technologies, the advantages of this invention are as follows: This invention, through the cooperation of a negative pressure pump and a gas storage device, allows the negative pressure pump to simultaneously create a vacuum inside the cooking chamber and rapidly fill the cooking chamber with food-preserving gas from the gas storage device. This significantly reduces the oxygen content during food preparation, preventing food oxidation. Furthermore, the cooperation between the gas generator and the gas storage device allows the food-preserving gas generated by the gas generator to be pre-stored in the gas storage device, ensuring that the food-preserving gas can be quickly filled into the cooking chamber during food preparation. This reduces the user's waiting time for the food-preserving gas to be prepared and ensures the concentration and flow rate of the food-preserving gas filling the cooking chamber. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0025] Figure 2 This is a partial structural schematic diagram from another perspective of Embodiment 1 of this utility model;

[0026] Figure 3 This is a cross-sectional view of Embodiment 1 of the present utility model (the cross-section is a vertical plane extending from front to back);

[0027] Figure 4 This is another sectional view of Embodiment 1 of the present utility model (the sectional view is a vertical plane extending from front to back);

[0028] Figure 5 This is a partial structural schematic diagram of Embodiment 2 of the present invention;

[0029] Figure 6 This is a cross-sectional view of Embodiment 2 of the present invention (the cross-section is a vertical plane extending to the left and right). Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] Example 1:

[0032] like Figures 1-4 As shown, this is a preferred embodiment of the food processor of the present invention. The food processor is a cabinet structure that can be embedded in a cabinet, including a shell 1, a negative pressure pump 2, a gas generating device 3, a gas storage device 4, a wall-breaking blade 7, and a drive mechanism 70.

[0033] The casing 1 has a cooking chamber 10 for cooking food. The cooking chamber 10 is formed by a hollow pot body 1a with an open top and a lid 1b covering the top of the pot body 1a. The lid 1b can be detached from the pot body to open the top opening of the pot body 1a, at which time the food to be processed can be put into the pot body 1a. In this embodiment, the cooking chamber 10 has an exhaust port 11 at the top and an air inlet port 12 at the bottom.

[0034] The aforementioned wall-breaking blade 7 is existing technology. It is located in the lower space of the cooking chamber and can rotate under the drive of the drive mechanism 70 (which is a motor) to crush the ingredients in the cooking chamber 10.

[0035] The aforementioned negative pressure pump 2 can be an existing rotary vane or screw vacuum pump. The negative pressure pump 2 is located outside the cooking chamber 10 and is connected to the exhaust port 11. It is used to extract the gas in the cooking chamber 10 so that the cooking chamber 10 is in a negative pressure state (the pressure in the cooking chamber 10 drops to below 0.03 to 0.08 MPa).

[0036] Gas generating device 3 is an existing device that uses compressed air as raw material to produce high-purity (purity ≥99.5%) nitrogen. Nitrogen is a food preservative gas used to prevent food oxidation.

[0037] The gas storage device 4 has an internal gas chamber 41 for storing food preservation gas. The gas inlet 411 of the gas chamber 41 is connected to the output end of the gas generator 3, and the gas outlet 412 of the gas chamber 41 is connected to the air inlet 12 at the bottom of the cooking chamber 10 through a gas pipe 5. A flow control valve 51 (a conventional electromagnetic flow control valve) is provided on the gas pipe 5 to control the gas flow. When the flow control valve 51 is open, the food preservation gas inside the gas storage device 4 is arranged such that it can be drawn into the cooking chamber 10 under the action of negative pressure. In this embodiment, the gas storage device 4 is a flexible airbag that can expand or contract. When the food preservation gas is filled into the flexible airbag, the flexible airbag expands, and the volume of the internal gas chamber 41 increases; when the flexible airbag deflates, the flexible airbag contracts, and the volume of the internal gas chamber 41 decreases. Specifically, the flexible airbag can be made of polyurethane or nylon composite materials, which have high elasticity and pressure resistance, can store high concentrations of nitrogen (pressure range of 0.6-0.8 MPa), and can quickly release nitrogen when needed.

[0038] Meanwhile, in this embodiment, an oxygen sensor 13 for detecting oxygen concentration and a controller for receiving the output signal of the oxygen sensor are provided at the exhaust port 11 of the cooking chamber. The controller is electrically connected to the negative pressure pump 2, the gas generator 3, and the flow control valve 51 to control the operation of the negative pressure pump 2, the gas generator 3, and the flow control valve 51, so as to ensure the precise control of nitrogen concentration and flow rate during the food cell breaking process.

[0039] Example 2:

[0040] like Figure 5 , 6 As shown, this is a preferred embodiment of the food processor of the present invention. This embodiment is basically the same as the first embodiment, except that the structure of the gas storage device is different. Specifically, the gas storage device 4 in this embodiment is hollow inside and is divided into an independent cavity 42 and a gas chamber 41 for storing nitrogen by a middle piston plate 40. The cavity 42 is provided with a vent 421 that connects to the outside. The piston plate 40 moves under the drive of the air pressure in the cavities 42 and the gas chamber 41 on both sides, thereby increasing or decreasing the volume of the gas chamber 41.

[0041] This embodiment also includes a three-way valve 6 (a conventional three-way valve), whose first inlet 61 is connected to the exhaust port 11, its second inlet 62 is connected to the oxygen exhaust port 31 of the gas generator 3, and its first outlet 63 is connected to the negative pressure pump 2. The three-way valve is used to switch between the negative pressure pumping of the cooking chamber and the auxiliary oxygen exhaust of the gas generator.

[0042] In the specification and claims of this utility model, terms indicating direction, such as "upper," "lower," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0043] The term "vertical" is also used in the specification and claims of this utility model, meaning basically along the up and down direction, and is not limited to just the vertical direction, but can also be slightly deviated from the vertical direction.

Claims

1. A food processor, comprising: The casing (1) has a cooking chamber (10) inside for cooking food, and the upper part of the cooking chamber (10) has an exhaust port (11); Its features It also includes: A negative pressure pump (2) is located outside the cooking chamber (10) and connected to the exhaust port (11) to extract the gas in the cooking chamber (10) so that the cooking chamber (10) is in a negative pressure state. Gas generator for preparing food preservation gas (3); The gas storage device (4) has an internal gas chamber (41) for storing food preservation gas. The gas inlet (411) of the gas chamber (41) is connected to the output end of the gas generator (3). The gas outlet (412) of the gas chamber (41) is connected to the cooking chamber (10) through a gas pipeline (5). A flow control valve (51) for controlling the gas flow is provided on the gas pipeline (5). When the flow control valve (51) is opened, the food preservation gas in the gas storage device (4) is arranged so that it can be drawn into the cooking chamber (10) under the action of negative pressure in the cooking chamber (10).

2. The food processor according to claim 1, characterized in that: The gas storage device (4) has a structure in which the volume of its internal air chamber (41) increases when it is filled with gas and decreases when it is deflated.

3. The food processor according to claim 2, characterized in that: The gas storage device (4) is a flexible airbag that can expand or contract.

4. The food processor according to claim 2, characterized in that: The gas storage device (4) is hollow inside and is divided into an independent cavity (42) and the aforementioned air cavity (41) by a middle piston plate (40). The cavity (42) is provided with a vent (421) that connects to the outside. The piston plate (40) moves under the drive of the air pressure in the cavities (42) and air cavity (41) on both sides, thereby increasing or decreasing the volume of the air cavity (41).

5. The food processor according to claim 1, characterized in that: The gas generating device (3) is a device for preparing nitrogen gas using compressed air as raw material.

6. The food processor according to claim 5, characterized in that: It also includes a three-way valve (6), whose first inlet (61) is connected to the exhaust port (11), its second inlet (62) is connected to the oxygen exhaust port (31) of the gas generating device (3), and its first outlet (63) is connected to the negative pressure pump (2).

7. The food processor according to claim 1, characterized in that: The bottom of the cooking chamber (10) is provided with an air inlet (12), which is connected to the outlet end of the gas pipeline (5).

8. The food processor according to claim 1, characterized in that: An oxygen sensor (13) for detecting oxygen concentration and a controller for receiving the output signal of the oxygen sensor are provided at the exhaust port (11). The controller is electrically connected to the negative pressure pump (2), the gas generator (3), and the flow control valve (51).

9. The food processor according to any one of claims 1 to 8, characterized in that: The cooking chamber (10) is equipped with a wall-breaking blade (7), which rotates under the drive of the drive mechanism (70) to crush the ingredients in the cooking chamber (10).

10. The food processor according to any one of claims 1 to 8, characterized in that: The cooking chamber (10) is defined by the hollow interior and open top of the pot body (1a) and the lid (1b) covering the top of the pot body (1a).

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