Centrifugal extractor

Abstract

The utility model belongs to the technical field of beverage extraction equipment, and particularly provides a centrifugal extractor. In order to solve the problem that the completeness of extraction of an object to be extracted by the existing extraction equipment is poor, the centrifugal extractor disclosed by the utility model comprises a liquid storage container, a driving device, an inner filtering container and an outer filtering container, and the driving device is relatively fixed with the liquid storage container and is respectively in driving connection with the inner filtering container and the outer filtering container. The circumferential side wall of the inner filtering container is marked as a first circumferential side wall and is provided with a plurality of first filtering holes, and the inner filtering container is used for centrifugally extracting a to-be-extracted object placed in the inner filtering container in a rotating manner and enabling an extracted target substance to pass through the first filtering holes. The circumferential side wall of the outer filtering container is marked as a second circumferential side wall and is provided with a plurality of second filtering holes with the hole diameter smaller than that of the first filtering holes, and the outer filtering container is arranged between the liquid storage container and the inner filtering container. According to the centrifugal extractor disclosed by the utility model, the extraction completeness of an object to be extracted is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of beverage extraction equipment, and particularly provides a centrifugal extractor. Background Art

[0002] Existing extraction equipment generally extracts substances to be extracted, such as coffee, by means of soaking, hot water brewing, cooking, etc., so as to extract the target substances in the substances to be extracted and obtain the final drinking solution.

[0003] The principle of the above extraction method is to dissolve and diffuse the target substances in the substances to be extracted, such as coffee, into the solution by means of molecular diffusion. This not only takes a long time, but also makes the substances to be extracted still retain a large amount of target substances after extraction, and the extraction is incomplete, which even affects the taste of the final drinking solution. Summary of the Utility Model

[0004] An object of the utility model is to solve the problem that the existing extraction equipment has poor integrity in extracting substances to be extracted.

[0005] To achieve the above object, the utility model provides a centrifugal extractor, comprising:

[0006] A liquid storage container;

[0007] A driving device, which is relatively fixed to the liquid storage container;

[0008] An inner filter container, the circumferential side wall of which is denoted as the first circumferential side wall and is provided with a plurality of first filter holes. The inner filter container is arranged in the liquid storage container and is drivingly connected to the driving device. The inner filter container is used for centrifugally extracting the substances to be extracted placed therein by rotation, and enabling the extracted target substances to pass through the first filter holes;

[0009] An outer filter container, the circumferential side wall of which is denoted as the second circumferential side wall and is provided with a plurality of second filter holes. The outer filter container is arranged between the liquid storage container and the inner filter container and is drivingly connected to the driving device. The aperture of the second filter holes is smaller than the aperture of the first filter holes, so as to filter the extracted target substances through the second filter holes.

[0010] Optionally, during the extraction of the substance to be extracted by the centrifugal extractor, a liquid in which the target substance is dissolved is generated; the second circumferential side wall slopes outward from the bottom to the top, so that the liquid rises to the top of the second circumferential side wall under the action of centrifugal force; the outer filter container further includes an annular plate, and the annular plate extends from the top of the second circumferential side wall towards the inner filter container and abuts against the inner filter container, so that the liquid in the outer filter container flows back to the inner filter container through the first filter holes under the restriction of the annular plate.

[0011] Optionally, the plurality of second filter holes are distributed at the bottom of the second circumferential side wall to prevent the liquid at the top of the second circumferential side wall from flowing away and being unable to accumulate and flow back to the inner filter container.

[0012] Optionally, the distribution density of the second filter holes at the top of the second circumferential side wall is less than the distribution density at the bottom of the second circumferential side wall, to prevent the liquid at the top of the second circumferential side wall from flowing away quickly and being unable to accumulate and flow back to the inner filter container.

[0013] Optionally, the distribution density of the second filter holes gradually increases from the top side to the bottom side of the second circumferential side wall.

[0014] Optionally, the aperture of the second filter hole at the top among the plurality of second filter holes is smaller than the aperture of the second filter hole at the bottom.

[0015] Optionally, the aperture of the second filter holes gradually increases from the top side to the bottom side of the second circumferential side wall.

[0016] Optionally, the ratio of the height of the second circumferential side wall to the height of the first circumferential side wall is selected from any value between 0.3 and 0.7.

[0017] Optionally, the ratio of the aperture of the first filter holes to the aperture of the second filter holes is greater than 1 and less than or equal to 3.

[0018] Optionally, the ratio of the aperture of the first filter holes to the aperture of the second filter holes is greater than 1 and less than or equal to 2.

[0019] Based on the foregoing description, those skilled in the art can understand that in the foregoing technical solution of the present utility model, by configuring an inner filtration container driven by a driven device, the inner filtration container can perform centrifugal extraction on the extract to be placed therein in a rotating manner, and enable the extracted substance to pass through the first filtration holes. During centrifugal extraction, it is easier to throw the target substance on the extract out of the inner filtration container. Therefore, the centrifugal extractor of the present utility model improves the integrity of the extraction of the extract to be extracted. Moreover, the present utility model can also filter the extracted target substance through an outer filtration container, improving the purity and taste of the final drinking solution.

[0020] Further, by making the aperture of the second filtration holes smaller than the aperture of the first filtration holes, especially by making the ratio of the aperture of the first filtration holes to the aperture of the second filtration holes greater than 1 and less than or equal to 3, the outer filtration container can perform secondary filtration on the substances thrown out by the inner filtration container through the second filtration holes, preventing the extract with larger particles from being thrown into the liquid storage container.

[0021] Further, by making the second circumferential side wall of the outer filtration container slope outward from the bottom to the top, the liquid in the outer filtration container rises to the top of the second circumferential side wall under the action of centrifugal force. By making the annular plate of the outer filtration container extend from the top of the second circumferential side wall towards the inner filtration container and abut against the inner filtration container, the liquid in the outer filtration container can flow back into the inner filtration container via the first filtration holes under the restriction of the annular plate, realizing the cyclic re-extraction of the extract to be extracted and improving the extraction efficiency. Compared with separately configuring a pumping system for pumping the liquid back into the inner filtration container, the cost is lower and the structure is more compact.

[0022] Further, by reducing the density or aperture of the second filtration holes on the top of the second circumferential side wall, the rapid loss of the liquid on the top of the second circumferential side wall is prevented, and the liquid cannot accumulate and flow back into the inner filtration container, ensuring that the outer filtration container can return the liquid therein to the inner filtration container.

[0023] Other beneficial effects of the present utility model will be described in detail in combination with the drawings hereinafter, so that those skilled in the art can more clearly understand the improvement objectives, features and advantages of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the present utility model, some embodiments of the present utility model will be described hereinafter with reference to the drawings. Those skilled in the art should understand that the components or parts denoted by the same reference numerals in different drawings are the same or similar; the drawings of the present utility model are not necessarily drawn to scale. In the drawings:

[0025] Figure 1It is an exploded view of a centrifugal extractor in some embodiments of the present utility model (first axonometric view);

[0026] Figure 2 It is an exploded view of a centrifugal extractor in some embodiments of the present utility model (second axonometric view);

[0027] Figure 3 It is an axonometric view of a centrifugal extractor in some embodiments of the present utility model;

[0028] Figure 4 It is Figure 3 A sectional view of the centrifugal extractor along the A-A direction;

[0029] Figure 5 It is Figure 3 A sectional view of the centrifugal extractor along the A-A direction (the fuselage and the liquid storage container are hidden);

[0030] Figure 6 It is Figures 1 to 5 An axonometric view of the inner filter container;

[0031] Figure 7 It is Figure 3 A sectional view of the inner filter container along the A-A direction;

[0032] Figure 8 It is Figures 1 to 5 The first axonometric view of the outer filter container;

[0033] Figure 9 It is Figures 1 to 5 The second axonometric view of the outer filter container;

[0034] Figure 10 It is Figure 9 A sectional view of the outer filter container along the B-B direction;

[0035] Figure 11 It is Figures 1 to 5 A schematic sectional view of the inner filter container, the outer filter container and the annular pressing block.

[0036] Explanation of reference numerals:

[0037] 001, centrifugal extractor; 002, substance to be extracted; 003, target substance; 004, liquid;

[0038] 100, fuselage; 101, top cavity; 102, bottom cavity; 110, knob;

[0039] 200, liquid storage container; 201, liquid discharge channel; 202, avoidance hole; 210, annular baffle;

[0040] 300, driving device; 310, motor; 320, connector;

[0041] 400, inner filtration container; 410, first circumferential side wall; 411, first filtration hole;

[0042] 500, outer filtration container; 510, second circumferential side wall; 511, second filtration hole; 520, annular plate; 530, inner ring part; 540, top plate; 550, outer ring part;

[0043] 600, annular pressing block. Detailed implementation manner

[0044] Those skilled in the art should understand that the embodiments described below are only part of the embodiments of the present utility model, rather than all the embodiments of the present utility model. These part of the embodiments are intended to explain the technical principle of the present utility model, and are not intended to limit the protection scope of the present utility model. Based on the embodiments provided by the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts should still fall within the protection scope of the present utility model.

[0045] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] Furthermore, it should be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can also be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. For example, the terms "installation", "connection", "connected" and "fixed", without special description, can specifically be any feasible connection forms such as bolt connection, screw connection, welding, plug connection, riveting, fusion welding, snap connection, etc.

[0047] Such as Figures 1 to 5As shown, in some embodiments of the present utility model, the centrifugal extractor 001 innovatively uses centrifugal extraction technology and includes a fuselage 100, a liquid storage container 200, a driving device 300, an inner filter container 400, an outer filter container 500, and an optional annular pressing block 600.

[0048] Among them, a top cavity 101 and a bottom cavity 102 are defined on the fuselage 100. The top cavity 101 is used to arrange the liquid storage container 200, the inner filter container 400, and the outer filter container 500, and the bottom cavity 102 is used to arrange the driving device 300. Of course, on the premise that the liquid storage container 200, the driving device 300, the inner filter container 400, and the outer filter container 500 can be installed, those skilled in the art can also set the fuselage 100 into any other feasible shape according to needs, such as a hollow barrel-shaped member. Or, those skilled in the art can also omit the setting of the fuselage 100 according to needs.

[0049] Among them, the liquid storage container 200 is used to hold the liquid 004 added into the centrifugal extractor 001 (as Figure 11 shown), or the liquid 004 generated during the operation of the centrifugal extractor 001.

[0050] Among them, the driving device 300 is relatively fixed to the liquid storage container 200. Specifically, it can be fixedly connected to the fuselage 100.

[0051] Among them, the circumferential side wall of the inner filter container 400 is denoted as the first circumferential side wall 410 and is provided with a plurality of first filter holes 411. The inner filter container 400 is arranged in the liquid storage container 200 and is drivingly connected to the driving device 300. The inner filter container 400 is used to perform centrifugal extraction on the extractable substance 002 placed therein (as Figure 11 shown) by rotation, and enable the extracted target substance 003 (as Figure 11 shown) to pass through the first filter holes 411.

[0052] Among them, the circumferential side wall of the outer filter container 500 is denoted as the second circumferential side wall 510 and is provided with a plurality of second filter holes 511. The outer filter container 500 is arranged between the liquid storage container 200 and the inner filter container 400 and is drivingly connected to the driving device 300. The aperture of the second filter holes 511 is smaller than the aperture of the first filter holes 411 to filter the extracted target substance 003 through the second filter holes 511.

[0053] Among them, the annular pressing block 600 is detachably installed in the inner filtering container 400 for pressing the extractable substance 002 in the inner filtering container 400 to prevent the extractable substance 002 from being thrown out of the inner filtering container 400. The hole in the middle of the annular pressing block 600 is used to facilitate the user to put the extractable substance 002 and water into the inner filtering container 400. Of course, those skilled in the art can also, as needed, set the annular pressing block 600 as a solid plate-like structure or omit the setting of the annular pressing block 600.

[0054] Those skilled in the art can understand that the present utility model configures the inner filtering container 400 driven by the driving device 300, so that the inner filtering container 400 can perform centrifugal extraction on the extractable substance 002 placed therein by rotating, and enable the extracted substance to pass through the first filtering holes 411. During centrifugal extraction, it is easier to throw the target substance 003 on the extractable substance 002 out of the inner filtering container 400. Therefore, the centrifugal extractor 001 of the present utility model improves the integrity of the extraction of the extractable substance 002. Moreover, the present utility model can also filter the extracted target substance 003 through the outer filtering container 500, improving the purity and taste of the final drinking solution (the liquid 004 containing the target substance 003).

[0055] It should be noted that in the present utility model, the extractable substance 002 includes coffee powder and / or tea powder. For example, the extractable substance 002 can be coffee powder or tea powder, or a mixture of coffee powder and tea powder.

[0056] Of course, those skilled in the art can also, as needed, make the extractable substance 002 include any other feasible powdery substances, such as soybean powder, mung bean powder, cocoa powder, lemon, etc.

[0057] During the extraction of the extractable substance 002 by the centrifugal extractor 001 of the present utility model, a liquid 004 in which the target substance 003 is dissolved is generated.

[0058] Among them, the target substance 003 can be a substance in the extractable substance 002 that is soluble in water. The liquid 004 is the liquid substance of the extractable substance 002 itself or can also be water. This water can be hot water, normal temperature water or cold water in terms of temperature, and can be pure water, tap water, mineral water or water dissolved with specific substances (such as sugar, milk, essence, etc.) in terms of composition.

[0059] As Figures 1 to 3 shown, in some embodiments of the present utility model, a knob 110 can also be provided on the fuselage 100 to adjust the rotation speeds of the inner filtering container 400 and the outer filtering container 500 through the knob 110.

[0060] In addition, in other embodiments of the present utility model, those skilled in the art can also, according to needs, omit the setting of the knob 110 and control the rotation speeds of the inner filtration container 400 and the outer filtration container 500 through other buttons or other devices. Among them, the other buttons can be physical buttons provided on the centrifugal extractor 001 or virtual buttons displayed on the display screen of the centrifugal extractor 001. The other devices can be a remote control adapted to the centrifugal extractor 001, or devices such as a mobile phone or a tablet that are communicatively connected to the centrifugal extractor 001.

[0061] As Figures 1 to 4 shown, in some embodiments of the present utility model, the liquid storage container 200 is placed in the top cavity 101 of the fuselage 100 and can be detachably connected to the fuselage 100 to facilitate the user to remove the liquid storage container 200 for cleaning. Of course, those skilled in the art can also, according to needs, fixedly connect the liquid storage container 200 to the fuselage 100.

[0062] When the liquid storage container 200 is detachably connected to the fuselage 100, the liquid storage container 200 and the fuselage 100 are provided with an anti-rotation structure to prevent the liquid storage container 200 from rotating relative to the fuselage 100. For example, Figure 1 and Figure 2 shown, a protruding structure (not marked in the figure) is provided on the peripheral wall of the liquid storage container 200, and a slot (not marked in the figure) matching the protruding structure is provided on the fuselage 100. The protruding structure is inserted into the slot, thereby realizing the circumferential fixation of the liquid storage container 200 and the fuselage 100. A hanging ear (not marked in the figure) can also be provided on one side of the liquid storage container 200 away from the protruding structure, and a card slot (not marked in the figure) corresponding to the hanging ear is provided on the fuselage 100. The hanging ear is embedded in the card slot to further realize the circumferential fixation of the liquid storage container 200 and the fuselage 100.

[0063] When the liquid storage container 200 is fixedly connected to the fuselage 100, the two can be fixedly connected together through fixing members, structures or materials such as screws, buckles, and adhesives.

[0064] As Figures 1 to 4 shown, in some embodiments of the present utility model, a liquid discharge channel 201 is provided on the liquid storage container 200 to discharge the liquid 004 in the liquid storage container 200 through the liquid discharge channel 201.

[0065] As Figure 1 、 Figure 2 and Figure 4As shown, in some embodiments of the present utility model, an avoidance hole 202 is provided on the bottom wall of the liquid storage container 200 to avoid the driving device 300, so as to ensure that the driving device 300 is drivingly connected to the inner filtration container 400 and the outer filtration container 500. The liquid storage container 200 is further provided with an annular baffle 210 extending from its bottom wall to the top side to prevent the liquid 004 in the liquid storage container 200 from flowing out through the avoidance hole 202.

[0066] As Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments of the present utility model, the driving device 300 includes a motor 310 and a connector 320. The motor 310 is fixedly connected to the fuselage 100 through its housing, the motor 310 is fixedly connected to the connector 320 through its rotating shaft, and the connector 320 is fixedly connected to the inner filtration container 400 and the outer filtration container 500, so that the motor 310 drives the inner filtration container 400 and the outer filtration container 500 to rotate through the connector 320.

[0067] Specifically, a through hole is formed between the top cavity 101 and the bottom cavity 102 of the fuselage 100, and the rotating shaft of the motor 310 passes through the through hole, so that the main part of the motor 310 is located in the bottom cavity 102, and the connector 320 is located in the top cavity 101.

[0068] Among them, the connector 320 can be any feasible structure such as a plate-like structure, a columnar structure, a Y-shaped structure, a triangular structure, etc. A rotating shaft hole (not marked in the figure) matching the rotating shaft of the motor 310 is provided on the connector 320 to realize the fixed connection between the connector 320 and the rotating shaft of the motor 310 through the rotating shaft hole. Alternatively, a connecting shaft is provided on the connector 320, and the connecting shaft and the rotating shaft of the motor 310 are fixedly connected together through a coupling.

[0069] Alternatively, those skilled in the art can also, according to needs, connect the connector 320 and the rotating shaft of the motor 310 in any other feasible connection manner, such as welding, bolt connection, flange connection, etc.

[0070] Alternatively, those skilled in the art can also, according to needs, detachably connect the connector 320 and the rotating shaft of the motor 310, so that the connector 320 can be detached together with the detachable liquid storage container 200.

[0071] Furthermore, the connector 320 is fixedly connected to the inner filtration container 400 and the outer filtration container 500, so that the motor 310 drives the inner filtration container 400 and the outer filtration container 500 to rotate synchronously through the connector 320. For example, the connector 320 is welded or screwed to the outer filtration container 500, and the inner filtration container 400 is welded or screwed to the outer filtration container 500.

[0072] In other embodiments of the present utility model, those skilled in the art can also, as needed, set the connector 320 to two parts that can rotate synchronously and are detachably connected, and fix one part to the rotating shaft of the motor 310, and fix the other part to the inner filter container 400 and the outer filter container 500. Exemplarily, convex teeth are respectively provided at one ends of the two parts of the connector 320 that are close to each other, so that the two parts are engaged together through the two convex teeth, and thus the circumferential fixation of the two parts is achieved.

[0073] In addition, in other embodiments of the present utility model, those skilled in the art can also, as needed, set the driving device 300 to any other feasible form. For example, the driving device 300 only includes the motor 310, and the rotating shaft of the motor 310 is directly fixed to at least one of the inner filter container 400 and the outer filter container 500. When the rotating shaft of the motor 310 is only fixed to one of the inner filter container 400 and the outer filter container 500, the one is connected to the other of the inner filter container 400 and the outer filter container 500 through connection means such as welding, riveting, snap connection, bolt connection, etc.

[0074] As Figures 5 to 7 shown, in some embodiments of the present utility model, the inner filter container 400 is generally in a barrel-shaped structure, and a plurality of first filter holes 411 are uniformly distributed on the first circumferential side wall 410 of the inner filter container 400.

[0075] As Figure 5 、 Figures 8 to 10 shown, in some embodiments of the present utility model, the second circumferential side wall 510 of the outer filter container 500 slopes outward from the bottom to the top, so that the liquid 004 rises to the top end of the second circumferential side wall 510 under the action of centrifugal force.

[0076] As Figure 5 and Figure 10 shown, in some embodiments of the present utility model, the outer filter container 500 further includes an annular plate 520. The annular plate 520 extends from the top end of the second circumferential side wall 510 towards the inner filter container 400 and abuts against the inner filter container 400, so that the liquid 004 in the outer filter container 500 flows back into the inner filter container 400 through the first filter holes 411 under the restriction of the annular plate 520.

[0077] As Figure 4 and Figure 5As shown, in some embodiments of the present utility model, the ratio of the height of the second circumferential sidewall 510 to the height of the first circumferential sidewall 410 is selected from any value between 0.3 and 0.7, so as to reduce the climbing height of the liquid 004 in the outer filtration container 500 and reduce the overall height of the centrifugal extractor 001.

[0078] Among them, the ratio of the height of the second circumferential sidewall 510 to the height of the first circumferential sidewall 410 can specifically be 0.3, 0.4, 0.5, 0.56, 0.6, 0.7, etc.

[0079] As Figure 5 , Figures 8 to 10 As shown, in some embodiments of the present utility model, the outer filtration container 500 further includes an inner ring portion 530, a top plate 540, and an outer ring portion 550. The bottom end of the inner ring portion 530 is connected to the annular plate 520, the top end of the inner ring portion 530 is connected to the inner edge of the top plate 540, and the outer edge of the top plate 540 is connected to the top end of the outer ring portion 550.

[0080] As Figure 4 and Figure 5 As shown, in the assembled state, the inner ring portion 530 abuts against the first circumferential sidewall 410 of the inner filtration container 400, so as to increase the connection area between the outer filtration container 500 and the inner filtration container 400 and improve the stability of the outer filtration container 500 and the inner filtration container 400 during rotation.

[0081] Furthermore, the inner ring portion 530 and the first circumferential sidewall 410 of the inner filtration container 400 can be in interference fit.

[0082] As Figure 4 and Figure 5 As shown, in the assembled state, the top plate 540 can abut against the top circumferential edge of the inner filtration container 400, so as to prevent other substances such as the material to be extracted 002 from entering the outer filtration container 500 through the gap between the inner filtration container 400 and the outer filtration container 500.

[0083] As Figure 4 and Figure 5 As shown, in the assembled state, the outer ring portion 550 abuts against the liquid storage container 200, so as to prevent foreign objects from entering the liquid storage container 200 and affecting the taste of the final solution.

[0084] As Figures 8 to 9 As shown, in some embodiments of the present utility model, the distribution density of the second filtration holes 511 at the top of the second circumferential sidewall 510 is less than the distribution density at the bottom of the second circumferential sidewall 510, so as to prevent the liquid 004 at the top of the second circumferential sidewall 510 from flowing out quickly and being unable to accumulate and flow back to the inner filtration container 400.

[0085] Further, the distribution density of the second filtering holes 511 gradually increases from the top side to the bottom side of the second circumferential sidewall 510.

[0086] Alternatively, in other embodiments of the present invention, those skilled in the art can also, according to needs, arrange all the second filtering holes 511 at the bottom of the second circumferential sidewall 510 to prevent the liquid 004 at the top of the second circumferential sidewall 510 from flowing away and being unable to accumulate and flow back to the inner filtering container 400.

[0087] It should be noted that in the present invention, the top and the bottom of the second circumferential sidewall 510 are two parts in the axial direction of the second circumferential sidewall 510, and there is no clear demarcation between them. For example, the part of the second circumferential sidewall 510 shown in Figure 10 above the double-dotted line can be divided into the top of the second circumferential sidewall 510, and the part of the second circumferential sidewall 510 shown in Figure 10 below the double-dotted line can be divided into the bottom of the second circumferential sidewall 510.

[0088] In other embodiments of the present invention, those skilled in the art can also, according to needs, make the aperture diameter of the second filtering holes 511 at the top smaller than that of the second filtering holes 511 at the bottom among multiple second filtering holes 511. For example, the aperture diameter of the second filtering holes 511 gradually increases from the top side to the bottom side of the second circumferential sidewall 510.

[0089] Further, in some embodiments of the present invention, the ratio of the aperture diameter of the first filtering holes 411 to the aperture diameter of the second filtering holes 511 is greater than 1 and less than or equal to 3, so as to ensure that the flow-through capacity of all the second filtering holes 511 on the outer filtering container 500 is less than the flow-through capacity of all the first filtering holes 411 in the corresponding area of the inner filtering container 400 corresponding to the second circumferential sidewall 510, thereby preventing the liquid 004 in the outer filtering container 500 from being quickly thrown out.

[0090] Still further, the ratio of the aperture diameter of the first filtering holes 411 to the aperture diameter of the second filtering holes 511 is greater than 1 and less than or equal to 2.

[0091] Exemplarily, the ratio of the aperture diameter of the first filtering holes 411 to the aperture diameter of the second filtering holes 511 can specifically be 1.1, 1.5, 1.7, 1.9, 2, 2.5, 3, etc.

[0092] Next, with reference to Figure 11 and taking the extractable substance 002 as coffee for example, the working principle and the usage method of the centrifugal extractor 001 of the present invention will be briefly described.

[0093] As shown in Figure 11As shown, after the extractant 002 is placed in the inner filtration container 400, the motor 310 is started. The motor 310 drives the inner filtration container 400 and the outer filtration container 500 to rotate, and thus causes the extractant 002 in the inner filtration container 400 to generate a centrifugal force and adhere to the first circumferential side wall 410 of the inner filtration container 400.

[0094] Continue to refer to Figure 11 , after adding the liquid 004 (specifically water) to the inner filtration container 400, the liquid 004 will also generate a centrifugal force as the inner filtration container 400 rotates, and pass through the extractant 002, thereby forming a solution in which the target substance 003 in the extractant 002 is dissolved. For the convenience of description, this solution will also be described as the liquid 004 hereinafter.

[0095] Continue to refer to Figure 11 , as the inner filtration container 400 rotates, the liquid 004 in the inner filtration container 400 passes through the first filtration holes 411 and is thrown out into the outer filtration container 500. A part of the liquid 004 in the outer filtration container 500 is thrown out into the liquid storage container 200 through the second filtration holes 511 (as shown by the dotted line with an arrow at the bottom side in Figure 11 ). Another part of the liquid 004 in the outer filtration container 500 climbs along the inclined second circumferential side wall 510 to the annular plate 520 under the action of the centrifugal force, and is squeezed back into the inner filtration container 400 as the liquid 004 below the annular plate 520 continuously increases (as shown by the dotted line with an arrow at the top side in Figure 11 ), and then enters the next cycle.

[0096] After the centrifugal extractor 001 of the present invention finishes the extraction, the liquid 004 in the liquid storage container 200 is discharged through the liquid discharge channel 201.

[0097] In order to prevent the liquid 004 in the liquid storage container 200 from being discharged during the extraction process, those skilled in the art can also, according to needs, configure a plug for the liquid discharge channel 201 to close the liquid discharge channel 201 through the plug, and remove the plug from the liquid discharge channel 201 when liquid discharge is required.

[0098] In the present invention, it is possible to determine whether the centrifugal extractor 001 has completed the extraction of the extractant 002 by counting the running time of the motor 310, or it is also possible to determine whether the centrifugal extractor 001 has completed the extraction of the extractant 002 by determining whether the concentration of the liquid 004 in the liquid storage container 200 has reached the value set by the user.

[0099] Based on the foregoing description, those skilled in the art can understand that the centrifugal extractor 001 of the present invention not only improves the integrity of the extraction of the extractant 002, but also enables at least the liquid 004 to be recycled and reused.

[0100] So far, the technical solutions of the present utility model have been described in combination with multiple embodiments of the foregoing text. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is not limited to these specific embodiments. Without departing from the technical principle of the present utility model, those skilled in the art can split and combine the technical solutions in the above-mentioned various embodiments, and can also make equivalent changes or replacements to the relevant technical features. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principle of the present utility model will fall within the protection scope of the present utility model.

Claims

1. A centrifugal extractor, characterized in that, Comprising: A liquid storage container; A driving device, which is relatively fixed to the liquid storage container; An inner filtration container, the circumferential side wall of which is denoted as the first circumferential side wall and is provided with a plurality of first filtration holes. The inner filtration container is arranged inside the liquid storage container and is drivingly connected to the driving device. The inner filtration container is used for centrifugally extracting the material to be extracted placed therein by rotation, and enabling the extracted target substance to pass through the first filtration holes; An outer filtration container, the circumferential side wall of which is denoted as the second circumferential side wall and is provided with a plurality of second filtration holes. The outer filtration container is arranged between the liquid storage container and the inner filtration container and is drivingly connected to the driving device. The aperture of the second filtration holes is smaller than the aperture of the first filtration holes, so as to filter the extracted target substance through the second filtration holes.

2. The centrifugal extractor according to claim 1, wherein During the extraction of the material to be extracted by the centrifugal extractor, a liquid in which the target substance is dissolved is generated; The second circumferential side wall inclines outward from the bottom to the top, so that the liquid rises to the top end of the second circumferential side wall under the action of centrifugal force; The outer filtration container further includes an annular plate, which extends from the top end of the second circumferential side wall towards the inner filtration container and abuts against the inner filtration container, so that the liquid in the outer filtration container flows back into the inner filtration container through the first filtration holes under the restriction of the annular plate.

3. The centrifugal extractor according to claim 2, wherein The plurality of second filtration holes are distributed at the bottom of the second circumferential side wall to prevent the liquid at the top of the second circumferential side wall from flowing away and being unable to accumulate and flow back into the inner filtration container.

4. The centrifugal extractor according to claim 2, wherein The distribution density of the second filtration holes at the top of the second circumferential side wall is smaller than the distribution density at the bottom of the second circumferential side wall, so as to prevent the liquid at the top of the second circumferential side wall from flowing away quickly and being unable to accumulate and flow back into the inner filtration container.

5. The centrifugal extractor according to claim 4, wherein The distribution density of the second filtration holes gradually increases from the top side to the bottom side of the second circumferential side wall.

6. The centrifugal extractor according to any one of claims 2 to 5, wherein The aperture of the second filtration holes at the top among the plurality of second filtration holes is smaller than the aperture of the second filtration holes at the bottom.

7. The centrifugal extractor according to claim 6, wherein The aperture of the second filtration holes gradually increases from the top side to the bottom side of the second circumferential side wall.

8. The centrifugal extractor according to any one of claims 2 to 5, wherein The ratio of the height of the second circumferential side wall to the height of the first circumferential side wall is selected from any value between 0.3 and 0.

7.

9. The centrifugal extractor according to any one of claims 1 to 5, wherein The ratio of the aperture of the first filtration holes to the aperture of the second filtration holes is greater than 1 and less than or equal to 3.

10. The centrifugal extractor according to claim 9, wherein The ratio of the aperture diameter of the first filtering hole to that of the second filtering hole is greater than 1 and less than or equal to 2.

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