Centrifugal extraction device

Abstract

The utility model provides a centrifugal extraction device. The centrifugal extraction device comprises a liquid storage container; the inner filtering component is arranged in the liquid storage container, an extraction cavity used for containing a powder target object is formed in the inner filtering component, and a plurality of first filtering holes are formed in the peripheral side wall of the inner filtering component; the outer filtering component is arranged between the liquid storage container and the inner filtering component, and a plurality of second filtering holes are formed in the peripheral side wall of the outer filtering component; and the driving device is used for driving the inner filtering component to rotate, so that the extraction agent added into the extraction cavity dissolves the powder target object under the action of centrifugal force, a target object solution is obtained, and the target object solution sequentially passes through the first filtering hole and the second filtering hole and then enters the liquid storage container. According to the method, a centrifugal extraction mode is creatively used, and the time for preparing the target solution is effectively shortened on the basis that the extraction agent has a good dissolving effect on the powder target. And the target solution is subjected to double filtration, so that the taste of the target solution can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of beverage extraction, in particular to a centrifugal extraction device. Background Art

[0002] In daily life, soluble powders such as coffee powder usually need to be brewed with hot water to obtain the final drinking solution. However, as people's consumption needs continue to diversify, the cold extraction method of soluble powders such as coffee has also begun to appear. Take cold extraction coffee as an example. Simply put, the cold extraction method is to use low-temperature water to soak coffee powder for a long time to obtain the final coffee liquid.

[0003] Because the cold brew method uses low-temperature water, compared to hot water, low-temperature water has a relatively poor dissolution effect on soluble powder. Not only does it take a relatively long time to make, which increases the waiting time, it is also more likely to have problems with insufficient powder dissolution, affecting the taste of the final solution. Utility Model Content

[0004] One purpose of the utility model is to provide a centrifugal extraction device that can solve the problem of long soaking time in cold extraction.

[0005] In particular, the utility model provides a centrifugal extraction device, comprising:

[0006] liquid storage container;

[0007] An inner filter component is disposed in the liquid storage container, wherein the inner filter component is formed with an extraction cavity for placing the powder target and a plurality of first filter holes are disposed on the peripheral side wall;

[0008] an outer filter member, which is disposed between the liquid storage container and the inner filter member and has a plurality of second filter holes on its peripheral side wall; and

[0009] The driving device is used to drive the inner filter component to rotate so that the extractant added to the extraction chamber dissolves the powder target under the action of centrifugal force, thereby obtaining a target solution, and the target solution enters the liquid storage container after passing through the first filter hole and the second filter hole in sequence.

[0010] Optionally, the peripheral side wall of the outer filter component is arranged to be inclined upward along its own radial direction to form a funnel shape.

[0011] Optionally, the centrifugal extraction device further comprises a stop member disposed in the extraction chamber, wherein the bottom surface of the stop member is lower than the top of the outer filter member to prevent the target solution from being thrown out or splashing out of the outer filter member.

[0012] Optionally, some of the plurality of second filter holes are located above the bottom surface of the stopping member and some are located below the bottom surface of the stopping member.

[0013] Optionally, the inclination angle of the peripheral side wall of the outer filter component is set to any value between 30 degrees and 60 degrees.

[0014] Optionally, the inclination angle of the peripheral side wall of the outer filter component is set to any value between 40 degrees and 50 degrees.

[0015] Optionally, the outer filter member is coaxially fixed to the inner filter member to rotate synchronously with the inner filter member.

[0016] Optionally, the inner surface of the bottom wall of the outer filter component is fitted and fixed to the outer surface of the bottom wall of the inner filter component.

[0017] Optionally, the driving device includes a motor, which is drivingly connected to the inner filter component and is used to drive the inner filter component to rotate.

[0018] Optionally, the peripheral side wall of the outer filter component is wavy, and the wave crests are distributed along the circumference of the outer filter component; and / or,

[0019] The centrifugal extraction device further comprises a housing, wherein the liquid storage container, the inner filter component, the outer filter component and the driving device are arranged in the housing.

[0020] The utility model drives the inner filter component to rotate through a driving device, so that the powder target placed in the extraction chamber of the inner filter component can be attached to the peripheral side wall of the inner filter component under the action of centrifugal force, and then the extractant added to the extraction chamber can pass through the powder target attached to the peripheral side wall of the inner filter component under the action of centrifugal force to obtain a target solution after the powder target is dissolved. In addition, by arranging an outer filter component on the outer side of the inner filter component, the target solution thrown out from the inner filter component can be filtered by the outer filter component again, so that the target solution can be double filtered by the inner filter component and the outer filter component.

[0021] On the one hand, the present application creatively uses a centrifugal extraction method, using a driving device to drive the inner filter component to rotate, so that the powder target is evenly spread on the peripheral side wall of the inner filter component, and the extractant can quickly infiltrate, dissolve and pass through the powder target under the action of centrifugal force, effectively shortening the time for preparing the target solution.

[0022] On the other hand, the target solution can be double filtered by the inner filter component and the outer filter component, thereby effectively reducing the undissolved powder particles in the target solution finally provided to the user for drinking, which helps to improve the taste of the target solution.

[0023] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0025] Figure 1 is a schematic exploded view of a centrifugal extraction device according to one embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of a centrifugal extraction device according to one embodiment of the present invention;

[0027] Figure 3 is a schematic cross-sectional view of a centrifugal extraction device according to one embodiment of the present invention;

[0028] Figure 4 is a schematic cross-sectional view of an inner filter member and an outer filter member in a centrifugal extraction device according to one embodiment of the present invention;

[0029] Figure 5 is a schematic diagram of a centrifugal extraction device according to an embodiment of the present invention in a state inside an extraction chamber during use;

[0030] Figure 6 is a schematic diagram of an outer filter component in a centrifugal extraction device according to one embodiment of the present invention;

[0031] Figure 7 is a schematic exploded view of a driving device in a centrifugal extraction device according to one embodiment of the present invention;

[0032] Figure 8 is a schematic exploded diagram of a storage solution in a centrifugal extraction device according to one embodiment of the present invention;

[0033] Fig. 9 FIG. 4 is a schematic diagram of an outer filter component in a centrifugal extraction device according to another embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 10. Centrifugal extraction device; 20. Powdered target;

[0036] 100, housing; 110, knob;

[0037] 200, liquid storage container; 201, liquid discharge hole; 210, inner cover shell; 211, avoidance hole; 220, outer cover shell; 221, motor shaft hole;

[0038] 300, inner filter component; 301, extraction chamber; 302, first filter hole;

[0039] 400, outer filter component; 401, second filter hole; 410, wave crest;

[0040] 500, driving device; 510, motor; 520, connector; 521, shaft connecting part; 522, adapter;

[0041] 600. Stop member. DETAILED DESCRIPTION

[0042] It should be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments of the present invention, and the embodiments are intended to explain the technical principles of the present invention, rather than to limit the protection scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should still fall within the protection scope of the present invention.

[0043] 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", "axial", "radial", "circumferential" 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 present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] Furthermore, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "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 direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] like Figures 1 to 3As shown, in one embodiment, the centrifugal extraction device 10 includes a housing 100, a liquid storage container 200, an inner filter component 300, an outer filter component 400 and a driving device 500. The liquid storage container 200, the inner filter component 300, the outer filter component 400 and the driving device 500 are all arranged inside the housing 100.

[0046] like Figures 1 to 3 As shown, the housing 100 is generally a cylindrical structure with an open top. The liquid storage container 200 is also generally a cylindrical structure with an open top. The height of the liquid storage container 200 is less than the height of the housing 100, and the outer diameter of the liquid storage container 200 is less than or equal to the inner diameter of the housing 100, so that the liquid storage container 200 is assembled into the housing 100 in the longitudinal direction through the opening at the top of the housing 100 in a manner of opening upward.

[0047] It should be noted that, in some other embodiments, the shell and the liquid storage container may be open cylinders of other shapes, such as polygonal cylinders, elliptical cylinders, etc., or cylinders of irregular shapes.

[0048] like Figures 1 to 4 As shown, further, the inner filter component 300 is disposed in the liquid storage container 200, and the inner filter component 300 is formed with an extraction cavity 301 for placing the powder target and a plurality of first filter holes 302 are disposed on the peripheral side wall. The outer filter component 400 is disposed between the liquid storage container 200 and the inner filter component 300, and a plurality of second filter holes 401 are disposed on the peripheral side wall.

[0049] Reference Figures 1 to 4 As shown, specifically, the inner filter member 300 is a container with a top opening, and the top opening is the opening of the extraction chamber 301 of the inner filter member 300. The inner filter member 300 is assembled in the liquid storage container 200 in a longitudinal direction with the opening facing upward. Therefore, the user can add powdered target into the extraction chamber 301 through the top opening.

[0050] Combination Figures 1 to 5 As shown, during the use of the centrifugal extraction device 10, the driving device 500 drives the inner filter component 300 to rotate, so that the powder target 20 in the extraction chamber 301 adheres to the peripheral side wall of the inner filter component 300 under the action of centrifugal force. Figure 5 As shown by the flow direction schematic arrow in the figure, the extractant added to the extraction chamber 301 passes through the powder target 20 under the action of centrifugal force, dissolves the powder target 20 to obtain a target solution, and then the target solution passes through the first filter hole 302 under the action of centrifugal force, so that the target solution is filtered for the first time.

[0051] It should be noted that the powder target includes one or more of coffee powder, tea powder or milk tea powder, that is, the powder target can be a single type of powder or a mixture of multiple types of powders.

[0052] In addition, it should be noted that the extractant can be warm water or cold water, and its composition can be pure water, tap water, mineral water or water dissolved with specific substances (such as sugar, milk, flavors, etc.).

[0053] In addition, it should be noted that, during use, the extractant may be added from the top of the extraction chamber or from the bottom of the inner filter component.

[0054] Reference Figures 1 to 4 As shown, the outer filter member 400 is a container with an opening at the top, and the outer filter member 400 is assembled in the liquid storage container 200 in a longitudinal direction with the opening facing upward. The inner filter member 300 is arranged in the outer filter member 400, that is, the outer filter member 400 is arranged between the liquid storage container 200 and the inner filter member 300. At the same time, the peripheral side wall of the outer filter member 400 surrounds the peripheral side wall of the inner filter member 300. The peripheral side wall of the outer filter member 400 is provided with a plurality of second filter holes 401.

[0055] Combination Figures 1 to 5 As shown, during the use of the centrifugal extraction device 10, after the target solution passes through the first filter hole 302 under the action of centrifugal force, it will be further thrown to the peripheral side wall of the outer filter component 400, and then pass through the outer filter component 400, so that the target solution is filtered for the second time. The target solution after double filtration by the inner filter component 300 and the outer filter component 400 enters the liquid storage container 200.

[0056] It should be noted that in some other embodiments, the inner filter component may include filter paper, which is attached to the inner or outer peripheral wall of the inner filter component to improve the filtering effect. Similarly, the outer filter component may also include filter paper, which is attached to the inner or outer peripheral wall of the outer filter component.

[0057] It should be noted that, in some other embodiments, the outer filter component may also be an annular structure, that is, it only has a peripheral side wall portion surrounding the inner filter component, but no bottom side wall.

[0058] In the solution of this embodiment, by arranging the inner filter member 300 and the outer filter member 400 in the liquid storage container 200, and arranging the driving device 500 to drive the inner filter member 300 to rotate, the powder target placed in the extraction chamber 301 of the inner filter member 300 can be attached to the peripheral side wall of the inner filter member 300 under the action of centrifugal force, and then the extractant added to the extraction chamber 301 can pass through the powder target attached to the peripheral side wall of the inner filter member 300 under the action of centrifugal force to obtain the target solution after the powder target is dissolved. In addition, by arranging the outer filter member 400 on the outer side of the inner filter member 300, the target solution thrown out from the inner filter member 300 can be filtered by the outer filter member 400 again, so that the target solution can be double filtered by the inner filter member 300 and the outer filter member 400.

[0059] On the one hand, this embodiment creatively uses a centrifugal extraction method, using a driving device 500 to drive the inner filter component 300 to rotate, so that the powder target is evenly spread on the peripheral side wall of the inner filter component 300, and the extractant can quickly infiltrate, dissolve and pass through the powder target under the action of centrifugal force, effectively shortening the time for preparing the target solution.

[0060] On the other hand, the target solution can be double filtered by the inner filter component 300 and the outer filter component 400, so that the undissolved powder particles in the target solution finally provided to the user can be effectively reduced, which helps to improve the taste of the target solution.

[0061] like Figures 1 to 4 As shown, in one embodiment, the peripheral sidewall of the outer filter component 400 is arranged to be tilted upward along its own radial direction to form a funnel shape. In other words, the outer filter component 400 is in the shape of an inverted truncated cone. In other words, the diameter of the space surrounded by the peripheral sidewall of the outer filter component 400 increases from the bottom to the top.

[0062] Those skilled in the art can understand that, by arranging the peripheral side wall of the outer filter member 400 to be tilted upward along its own radial direction, when the target solution collides with the outer filter member 400 under the action of centrifugal force, since the target solution has a certain kinetic energy, the target solution will first diffuse in the outer filter member 400 along the tilt direction of the outer filter member 400, and then pass through the outer filter member 400. In this way, not only can double filtration be achieved and the filtration effect be improved, but it also helps to increase the effective filtration area of ​​the outer filter member 400, and can prevent the solution from always concentrating on a too small area of ​​the outer filter member 400 to cause blockage.

[0063] In addition, when the outer filter component 400 is provided with filter paper, the inclined peripheral side wall of the outer filter component 400 can also buffer the target solution to prevent the target solution from being too impactful and breaking through the filter paper of the outer filter component 400 .

[0064] like Figures 1 to 4 ,as well as Figure 6 As shown, in one embodiment, the inclination angle of the peripheral side wall of the outer filter component 400 is set to any value between 30 degrees and 60 degrees. The inclination angle of the peripheral side wall of the outer filter component 400 is the angle between the peripheral side wall of the outer filter component 400 and the horizontal plane. Figure 6 For example, the inclination angle of the peripheral side wall of the outer filter member 400 may be set to 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, or 60 degrees.

[0065] It is understood by those skilled in the art that by setting the inclination angle of the peripheral side wall of the outer filter member 400 to any value between 30 and 60 degrees, the inclination of the outer filter member 400 is not too steep, thereby ensuring that the target solution can have a good diffusion effect on the outer filter member 400. In addition, the inclination of the outer filter member 400 is not too gentle, so as to avoid the outer filter member 400 having an excessively large diameter and resulting in an unsightly appearance, and to avoid the outer filter member 400 being too far away from the inner filter member 300 and resulting in the target solution having too little kinetic energy after reaching the outer filter member 400, thereby affecting the diffusion effect.

[0066] like Figures 1 to 4 ,as well as Figure 6 As shown, preferably, the inclination angle of the peripheral side wall of the outer filter member 400 is set to any value between 40 and 50 degrees, for example, it can be set to 40, 42, 44, 45, 46, 49 or 50 degrees. More preferably, the inclination angle of the peripheral side wall of the outer filter member 400 is set to 45 degrees.

[0067] It will be understood by those skilled in the art that by setting the inclination angle of the peripheral side wall of the outer filter component 400 to any value between 40 and 50 degrees, the inclination angle of the peripheral side wall of the outer filter component 400 can be more suitable in inclination, which can not only ensure that the target solution has a better diffusion effect on the outer filter component 400, but also make the overall appearance of the outer filter component 400 more beautiful.

[0068] like Figures 1 to 3 ,as well as Figure 5 As shown, in one embodiment, the centrifugal extraction device 10 further includes a stopper member 600, which is disposed in the extraction chamber 301. The bottom surface of the stopper member 600 is lower than the top of the outer filter member 400 to prevent the target solution from being thrown out or splashing out of the outer filter member 400.

[0069] Reference Figures 1 to 3 ,as well as Figure 5 As shown, specifically, the stop member 600 is annular, and the outer perimeter of the stop member 600 is adapted to the inner perimeter of the inner filter member 300, so that the stop member 600 can be coaxially disposed in the extraction chamber 301 of the inner filter member 300 through the top opening of the inner filter member 300.

[0070] In the solution of this embodiment, by arranging the stopper member 600 in the extraction chamber 301 and making the bottom surface of the stopper member 600 lower than the top of the outer filter member 400, the bottom surface of the stopper member 600 can be used to limit the height of the target solution in the extraction chamber 301, so that the target solution flowing out of the peripheral side wall of the inner filter member 300 will not exceed the top of the outer filter member 400. In this way, even if the target solution splashes when colliding with the outer filter member 400 and diffuses along the peripheral side wall of the outer filter member 400, it can effectively prevent the target solution from being thrown out or splashing out of the outer filter member 400.

[0071] In some examples, the distance between the bottom surface of the stop member 600 and the bottom surface of the extraction chamber 301 is 20 mm, and the height of the outer filter member 400 is 36 mm, that is, the distance between the bottom surface of the stop member 600 and the top of the outer filter member 400 is 16 mm.

[0072] Reference Figure 5 As shown, in addition, the bottom surface of the stop member 600 can also limit the height of the powder target in the extraction chamber 301, so as to play the role of pressing the powder target 20, which not only helps the powder target 20 to maintain its own shape during the rotation of the inner filter member 300, but also makes the powder target 20 more compact, reduces the gap between the powder particles, so that the extractant and the powder target are in contact more fully (because the larger the gap between the powder particles, the more the extractant will not contact the powder), thereby improving the solubility of the extractant in the powder target.

[0073] In addition, the annular stop member 600 also facilitates adding powdered target or extractant into the extraction chamber 301 through the middle through hole.

[0074] It should be noted that in some other embodiments, the stopper member may also be a block with a water adding hole at a non-central position, and the extractant is added from the water adding hole. Alternatively, when the extractant can be added to the inner filter member from the bottom of the inner filter member, the stopper member may also be a block without any hole.

[0075] like Figures 1 to 4As shown, some of the plurality of second filter holes 401 are located above the bottom surface of the stop member 600 and some are located below the bottom surface of the stop member 600. Specifically, the portion of the outer filter member 400 located above the bottom surface of the stop member 600 is provided with the second filter holes 401, and the portion located below the bottom surface of the stop member 600 is also provided with the second filter holes 401.

[0076] Those skilled in the art will appreciate that, by locating part of the plurality of second filter holes 401 above the bottom surface of the stop member 600 and part of them below the bottom surface of the stop member 600, while preventing the target solution from being thrown out or splashing out of the outer filter member 400, the part of the outer filter member 400 above the bottom surface of the stop member 600 can also have a filtering effect, so that when the target solution in the extraction chamber 301 close to the bottom surface of the stop member 600 is thrown onto the outer filter member 400, it can still be filtered by the part of the outer filter member 400 above the bottom surface of the stop member 600 after diffusing upward along the outer filter member 400.

[0077] like Figure 3 and Figure 5 As shown, in one embodiment, the bottom surface of the stop member 600 is tilted downward along its own radial direction to form a conical surface, so that the powder target that hits the conical surface under the action of centrifugal force generates a movement component downward and toward the peripheral wall of the inner filter member 300, so that the powder target attached to the peripheral wall of the inner filter member 300 can be more compact.

[0078] It is understood by those skilled in the art that by setting the bottom surface of the stop member 600 to tilt downward along its own radial direction to form a conical surface, when the powder target collides with the bottom surface of the stop member 600 under the action of centrifugal force, the force is decomposed into two directions, the horizontal and longitudinal directions, so that the powder target has movement components both downward and toward the peripheral side wall of the inner filter member 300. Therefore, from a macroscopic point of view, while the powder target is continuously attached to the peripheral side wall of the inner filter member 300, the top of the powder target that has been attached is subjected to downward pressure from the powder target that has changed direction due to the collision with the bottom surface of the stop member 600, so that the powder target is also pressed more tightly in the axial direction, further reducing the gap between the powder particles, so that the extractant and the powder target are in more sufficient contact.

[0079] Furthermore, the above structure makes the edge of the stop member 600 thicker than the center, so that the weight of the stop member 600 increases radially outward, which helps to improve the contact stability between the stop member 600 and the inner filter member 300, thereby improving its stability during rotation.

[0080] like Figure 3 and Figure 5As shown, in one embodiment, under the condition that the stopping member 600 is annular, the top surface of the stopping member 600 is inclined upward along its own radial direction to form a funnel surface, so that the powdered target and / or extraction agent added from the outside are gathered into the through hole of the stopping member 600. Specifically, the diameter of the funnel surface gradually decreases from top to bottom.

[0081] Those skilled in the art will appreciate that by setting the top surface of the stop member 600 to be tilted upward along its own radial direction to form a funnel surface, during the process of adding a powder target or an extractant into the extraction chamber 301 via the middle through hole of the stop member 600, even if the powder target or the extractant is not aligned with the through hole and falls on the top surface of the stop member 600, i.e., the funnel surface, it can be gathered along the funnel surface to the through hole and then fall into the extraction chamber 301, thereby making the process of adding a powder target or an extractant more convenient.

[0082] like Figures 1 to 3 As shown, in one embodiment, the outer filter member 400 is coaxially fixed to the inner filter member 300 to rotate synchronously with the inner filter member 300 .

[0083] Reference Figures 1 to 3 As shown, specifically, the driving device 500 includes a motor 510 and a connector 520. The motor 510 is fixedly connected to the housing 100 through its housing, and the motor 510 is fixedly connected to the connector 520 through its rotating shaft. The connector 520 is directly or indirectly fixedly connected to the inner filter member 300, so that the motor 510 drives the inner filter member 300 to rotate through the connector 520.

[0084] like Figures 1 to 3 ,as well as Figure 7 As shown, specifically, the connector 520 includes a shaft connection portion 521 and an adapter portion 522. The shaft connection portion 521 is used to be connected to the shaft of the motor 510, and the adapter portion 522 is used to be directly or indirectly fixedly connected to the inner filter member 300. The shaft connection portion 521 is roughly cylindrical, and the adapter portion 522 is roughly truncated. The adapter portion 522 is a cylindrical portion with a lower opening, and the top end of the cylindrical portion extends circumferentially out of the outer side of the peripheral side wall to form a docking platform. The adapter portion 522 covers the shaft connection portion 521 and is fixedly connected to the shaft connection portion 521.

[0085] It should be noted that in some other embodiments, the rotating shaft connection part can be any feasible structure such as a plate-like structure, a columnar structure, a Y-shaped structure, a triangular structure, etc., and the rotating shaft connection part is provided with a rotating shaft hole (not marked in the figure) matching the rotating shaft of the motor, so that the rotating shaft connection part and the rotating shaft of the motor can be fixedly connected through the rotating shaft hole. Alternatively, the rotating shaft connection part is provided with a connecting shaft, and the connecting shaft and the rotating shaft of the motor are fixedly connected together through a coupling.

[0086] Alternatively, those skilled in the art may also connect the shaft connection portion and the shaft of the motor together by any other feasible connection method, such as welding, bolt connection, flange connection, etc., as needed.

[0087] like Figures 1 to 3 ,as well as Figure 7 As shown, further, the top surface of the adapter 522 (that is, the top surface of the docking platform) is fixedly connected to the outer surface of the bottom wall of the outer filter component 400, and the inner surface of the bottom wall of the outer filter component 400 is fixedly attached to the outer surface of the bottom wall of the inner filter component 300. In other words, the connector 520 is indirectly fixedly connected to the inner filter component 300 via the outer filter component 400. In this way, the inner filter component 300, the outer filter component 400, the connector 520 and the rotating shaft of the motor 510 are fixed together. After the motor 510 is started, the inner filter component 300, the outer filter component 400 and the connector 520 rotate synchronously driven by the rotating shaft.

[0088] It should be noted that the inner surface of the bottom wall of the outer filter component 400 and the outer surface of the bottom wall of the inner filter component 300 are substantially the same in shape and size, so as to avoid excessive target solution from accumulating between the outer filter component 400 and the inner filter component 300 .

[0089] It should be noted that, in some other embodiments, the outer filter component may only have a peripheral side wall portion surrounding the inner filter component, so that the connector can be directly fixedly connected to the outer surface of the bottom wall of the inner filter component, and the outer filter component is also fixedly connected to the connector separately, or the bottom end of the outer filter component matches the diameter of the bottom end of the inner filter component, and the bottom end of the outer filter component is fixedly connected to the bottom end of the inner filter component.

[0090] like Figures 1 to 3 ,as well as Figures 7 and 8 As shown, the liquid storage container 200 includes an inner shell 210 and an outer shell 220. The inner shell 210 and the outer shell 220 are both cylindrical and open at the top. The inner shell 210 is arranged inside the outer shell 220, so that the outer shell 220 is sleeved on the outside of the inner shell 210. The inner filter component 300 and the outer filter component 400 are arranged inside the inner shell 210.

[0091] Reference Figure 3 , Figure 7 and Figure 8As shown, further, the bottom wall of the inner cover shell 210 is formed with an avoidance hole 211, and the inner bottom wall is formed with support ribs surrounding the avoidance hole 211 and protruding upward. The diameter of the avoidance hole 211 is larger than the outer diameter of the cylindrical portion of the adapter 522, and smaller than the diameter of the docking platform of the adapter 522, so that the cylindrical portion of the adapter 522 can be placed into the area surrounded by the support ribs from above, and the support ribs support the bottom surface of the docking platform of the adapter 522. The outer edge of the docking platform of the adapter 522 has a flange extending downward, and the flange surrounds the outer periphery of the support ribs.

[0092] Reference Figure 3 , Figure 7 and Figure 8 As shown, the bottom wall of the outer housing 220 is formed with a motor shaft hole 221 for passing the rotating shaft of the motor 510. Specifically, in an assembly process, the adapter 522 and the rotating shaft connecting portion 521 are first connected together, and then the cylindrical portion of the adapter 522 is placed from the top of the inner housing 210 into the area surrounded by the support ribs, and then the rotating shaft of the motor 510 is passed through the motor shaft hole 221 and connected to the rotating shaft connecting portion 521.

[0093] It will be understood by those skilled in the art that by fixing the outer filter component 400 and the inner filter component 300 coaxially, the outer filter component 400 and the inner filter component 300 can rotate synchronously, so that the target solution continues to be subjected to the centrifugal force in the outer filter component 400, which helps the target solution to further diffuse in the outer filter component 400, further increases the effective filtration area of ​​the outer filter component 400, and also helps the target solution to better pass through the outer filter component 400, thereby improving the filtration effect and reducing the accumulation of the target solution between the inner filter component 300 and the outer filter component 400.

[0094] In addition, by fitting and fixing the inner surface of the bottom wall of the outer filter component 400 with the outer surface of the bottom wall of the inner filter component 300, a larger contact area is provided between the outer filter component 400 and the inner filter component 300, thereby making the fixation between the outer filter component 400 and the inner filter component 300 more stable, thereby helping to improve the stability of the synchronous rotation of the outer filter component 400 and the inner filter component 300.

[0095] It should be noted that, in some other embodiments, the outer filter component may also rotate asynchronously with the inner filter component, or the outer filter component may also be fixed, that is, not rotated.

[0096] In addition, by utilizing the motor 510 to drive the inner filter component 300 to rotate, there is no need to convert the motion mode, and the structure is simpler.

[0097] It should be noted that, in some other embodiments, the reciprocating motion of the piston device can also be converted into a rotational motion, thereby driving the inner filter component to rotate.

[0098] In addition, by setting up a connector 520, the connector 520 is used to drive the inner filter component 300 to rotate. Compared with the rotating shaft of the motor 510, the connector 520 can provide a larger connection surface, thereby improving the structural stability between the driving device 500 and the inner filter component 300, making the rotation of the inner filter component 300 more stable.

[0099] It should be noted that in some other embodiments, the rotating shaft of the motor may be directly or indirectly fixedly connected to the inner filter component.

[0100] Reference Figure 3 to Figure 4 As shown, in one embodiment, the height of the inner filter member 300 is greater than the height of the outer filter member 400. That is, when the inner surface of the bottom wall of the outer filter member 400 is attached and fixed to the outer surface of the bottom wall of the inner filter member 300, the top of the inner filter member 300 is higher than the top of the outer filter member 400. Such a configuration facilitates the inner filter member 300 and the outer filter member 400 to be taken out as a whole by applying force to the top of the inner filter member 300.

[0101] like Figures 1 to 3 ,as well as Figure 8 As shown, the liquid storage container 200 is further provided with a liquid discharge hole 201, so that the target solution in the liquid storage container 200 can be discharged to the outside through the liquid discharge hole 201 for the user to take, making it more convenient to take the target solution.

[0102] It should be noted that, in some other embodiments, the drainage hole may be provided with an openable and closable valve. When the valve is opened, the target solution flows out of the drainage hole, and when the valve is closed, the target solution cannot flow out of the drainage hole.

[0103] It should be noted that, in some other embodiments, the liquid storage container may not be provided with a liquid discharge hole, and the target solution in the liquid storage cavity can be directly poured out.

[0104] In one embodiment, the driving device is configured to make the rotation speed of the first filter cover reach 3500 rpm to 6000 rpm. Such a configuration helps to ensure that the centrifugal force generated by the first filter cover meets the preset requirements, thereby increasing the interaction force between the extractant and the powder target, and helping to improve the dissolution effect of the extractant on the powder target. Preferably, the driving device is configured to make the rotation speed of the first filter cover reach 4500 rpm to 5000 rpm.

[0105] Reference Figure 1 and Figure 2As shown, in some embodiments, a knob 110 is provided on the housing 100 , and the knob 110 is used to control the rotation speed of the driving device 500 .

[0106] It should be noted that, in some other embodiments, those skilled in the art may also omit the setting of the knob as needed, and control the speed of the driving device through other buttons or other devices. Among them, the other buttons may be physical buttons set on the centrifugal extraction device or virtual buttons displayed on the display screen of the centrifugal extraction device. The other devices may be remote controllers compatible with the centrifugal extraction device, or mobile phones, tablets and other devices connected to the centrifugal extraction device for communication.

[0107] Reference Figures 1 to 4 As shown, the radial cross-sections of the inner filter component 300 and the outer filter component 400 perpendicular to their own axes are circular, so as to improve the dynamic balance of the inner filter component 300 and the outer filter component 400 when rotating, so that the inner filter component 300 and the outer filter component 400 have good rotation performance when rotating.

[0108] It should be noted that in some other embodiments, the radial cross-sections of the inner filter component and the outer filter component perpendicular to their own axes may also be other shapes, such as plum blossom shape, polygon (such as hexagon, octagon, dodecagon, etc.), rectangle, etc.

[0109] Reference Fig. 9 As shown, in some embodiments, the peripheral side wall of the outer filter member 400 is wavy, and the wave crests 410 are distributed along the circumference of the outer filter member 400. Specifically, the wave crests 410 are formed on the peripheral side wall of the outer filter member 400 with a plurality of protrusions extending from the top to the bottom and protruding inward, and the plurality of protrusions are distributed around the central axis of the outer filter member 400, so that the peripheral side wall of the outer filter member 400 is wavy in the circumferential direction. In other words, the radial cross section of the outer filter member 400 perpendicular to its own axis is flower-shaped.

[0110] Those skilled in the art will appreciate that by making the peripheral side wall of the outer filter component 400 wavy and the wave crests 410 distributed along the circumference of the outer filter component 400, when the target solution falls onto the wave crests 410 under the action of centrifugal force, it will diffuse to both sides of the wave crests 410, which will help increase the effective filtration area of ​​the outer filter component 400 and prevent the solution from always concentrating on an area of ​​the outer filter component 400 that is too small, causing blockage.

[0111] It should be noted that Fig. 9 The outer filter member 400 in the embodiment omits the second filter hole.

[0112] It should be noted that, in some other embodiments, the centrifugal extraction device may not be provided with a shell, and the driving device is directly fixed on the liquid storage container.

[0113] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A centrifugal extraction device, characterized in that: include: liquid storage container; An inner filter component is disposed in the liquid storage container, wherein the inner filter component is formed with an extraction cavity for placing the powder target and a plurality of first filter holes are disposed on the peripheral side wall; An outer filter component is disposed between the liquid storage container and the inner filter component, and a plurality of second filter holes are disposed on the peripheral side wall; and The driving device is used to drive the inner filter component to rotate so that the extractant added to the extraction chamber dissolves the powder target under the action of centrifugal force, thereby obtaining a target solution, and the target solution enters the liquid storage container after passing through the first filter hole and the second filter hole in sequence.

2. The centrifugal extraction device according to claim 1, characterized in that: The peripheral side wall of the outer filter component is arranged to be inclined upward along its own radial direction to form a funnel shape.

3. The centrifugal extraction device according to claim 2, characterized in that: The centrifugal extraction device further comprises a stopper component, which is arranged in the extraction chamber, and the bottom surface of the stopper component is lower than the top of the outer filter component to prevent the target solution from being thrown out or splashing out of the outer filter component.

4. The centrifugal extraction device according to claim 3, characterized in that: Some of the plurality of second filter holes are located above the bottom surface of the stopping member and some are located below the bottom surface of the stopping member.

5. The centrifugal extraction device according to claim 2, characterized in that: The inclination angle of the peripheral side wall of the outer filter member is set to any value between 30 degrees and 60 degrees.

6. The centrifugal extraction device according to claim 5, characterized in that: The inclination angle of the peripheral side wall of the outer filter member is set to any value between 40 degrees and 50 degrees.

7. The centrifugal extraction device according to any one of claims 1 to 6, characterized in that: The outer filter member is coaxially fixed to the inner filter member so as to rotate synchronously with the inner filter member.

8. The centrifugal extraction device according to claim 7, characterized in that: The inner surface of the bottom wall of the outer filter component is fitted and fixed to the outer surface of the bottom wall of the inner filter component.

9. The centrifugal extraction device according to any one of claims 1 to 6, characterized in that: The driving device comprises a motor, which is transmission-connected to the inner filter component and is used for driving the inner filter component to rotate.

10. The centrifugal extraction device according to any one of claims 1 to 6, characterized in that: The peripheral side wall of the outer filter component is wavy, and the wave crests are distributed along the circumference of the outer filter component; and / or, The centrifugal extraction device further comprises a housing, wherein the liquid storage container, the inner filter component, the outer filter component and the driving device are arranged in the housing.

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