Centrifugal extractor

Abstract

The invention belongs to the technical field of beverage extraction equipment, and particularly provides a centrifugal extraction machine which comprises a machine body, a driving device, a filtering container and a water pumping barrel. A plurality of first through holes are formed in the circumferential side wall of the filtering container, the filtering container is in driving connection with the driving device, and when the filtering container rotates, a powdery target object put into the filtering container can be attached to the circumferential side wall of the filtering container under the action of centrifugal force; and enabling the liquid entering the filtering container to pass through the powdery target object and the first through hole under the action of centrifugal force to form a solution. The water pumping barrel is arranged on the outer side of the filtering container to receive the solution thrown out of the filtering container, and the water pumping barrel is provided with a spiral channel formed in the barrel wall of the water pumping barrel, a channel inlet located in the bottom end of the spiral channel and a channel outlet located in the top end of the spiral channel; the water pumping barrel is in driving connection with the driving device, and when the water pumping barrel rotates, the solution in the water pumping barrel can flow back to the filtering container again through the channel inlet, the spiral channel and the channel outlet under the action of centrifugal force.

Description

Technical Field

[0001] This invention belongs to the technical field of beverage extraction equipment, and specifically provides a centrifugal extraction machine. Background Technology

[0002] Existing extraction equipment typically uses hot water to brew or cook powdered substances such as coffee to extract the final drinking solution.

[0003] With technological advancements, some extraction equipment now features cold brew capabilities, allowing for the extraction of powdered substances like coffee through a cold brewing process. Cold brewing typically involves steeping powdered substances like coffee at room temperature or below for an extended period to extract the final drinking solution.

[0004] However, prolonged steeping of powdered substances, especially coffee, not only increases the user's waiting time but may also reduce the taste and freshness of the solution due to prolonged exposure to air. Summary of the Invention

[0005] One objective of this invention is to solve the problem of prolonged soaking time when cold-brewing powdered materials such as coffee using existing extraction equipment.

[0006] To achieve the above objectives, the present invention provides a centrifugal extractor, comprising:

[0007] body;

[0008] The drive unit is mounted on the machine body;

[0009] A filter container has a plurality of first through holes on its circumferential sidewall. The filter container is driven to rotate by the drive device, so that the powdered target material put into the filter container adheres to the circumferential sidewall of the filter container under the action of centrifugal force, and the liquid entering the filter container passes through the powdered target material and the first through holes under the action of centrifugal force to form a solution.

[0010] A pump tank, disposed outside the filter container, receives the solution ejected from the filter container. The pump tank has a spiral channel formed on its wall, a channel inlet at the bottom of the spiral channel, and a channel outlet at the top of the spiral channel. The pump tank is driven to rotate by the drive device, causing the solution in the pump tank to enter the spiral channel through the channel inlet under the action of centrifugal force, and then be lifted by the spiral channel to the channel outlet and flow back to the filter container.

[0011] Optionally, the pump tank includes a tank body and a spiral component. A first annular cavity is defined within the circumferential sidewall of the tank body, and the spiral component is arranged within the first annular cavity so that the circumferential wall of the first annular cavity and the spiral component together define the spiral channel. The channel inlet and the channel outlet are both formed on the tank body.

[0012] Optionally, the bottom wall of the barrel defines a second annular cavity that communicates with the first annular cavity, and the channel inlet is a plurality of through holes formed on the top wall of the second annular cavity.

[0013] Optionally, a conical ring segment is provided on the inner side of the top of the barrel, and the conical ring segment is inclined inward from top to bottom; the channel outlet is a plurality of through holes formed on the conical ring segment.

[0014] Optionally, the filter container is positioned axially between the channel inlet and the channel outlet so that the solution ejected from the filter container can flow to the channel inlet and the filter container can receive the solution flowing out from the channel outlet.

[0015] Optionally, the filter container includes a receiving portion having the first through hole and an annular plate portion located on the top side of the receiving portion to block the powdery target material in the receiving portion through the annular plate portion; the annular plate portion is provided with a plurality of second through holes to allow the filter container to receive the solution flowing out from the channel outlet through the second through holes.

[0016] Optionally, the filter container further includes a neck located on the top side of the annular plate portion and connected to the inner end of the annular plate portion, so that the filter container receives the powdered target material through the neck.

[0017] Optionally, the centrifugal extractor further includes a flow guiding component disposed between the filter container and the pump tank, the flow guiding component being used to guide the solution flowing out of the channel outlet to the filter container.

[0018] Optionally, the drainage member defines a drainage cavity, and the peripheral wall of the drainage cavity is provided with a first drainage hole opposite to the channel outlet and a second drainage hole opposite to the filter container, so that the solution flowing out of the channel outlet enters the filter container through the first drainage hole, the drainage cavity and the second drainage hole.

[0019] Optionally, the first drainage hole is formed on the outer side wall of the drainage cavity in the circumferential direction, and the second drainage hole is formed on the bottom wall of the drainage cavity; and / or, the bottom wall of the drainage cavity abuts against the filter container to stop the filter container in the axial direction.

[0020] Optionally, the flow guide member, the filter container, and the pump tank define a buffer chamber at least through the flow guide member. The buffer chamber is connected to the first through hole and the channel inlet, respectively, so that the buffer chamber receives and buffers the solution thrown out from the first through hole, and allows the solution in the buffer chamber to enter the spiral channel through the channel inlet.

[0021] Optionally, at least a portion of the flow-guiding member is located radially between the filter container and the pump tank; the flow-guiding member is fixedly connected to both the filter container and the pump tank, so that the drive device transmits power to the pump tank through the filter container and the flow-guiding member.

[0022] Optionally, the flow-guiding component is generally cylindrical, and the filter container, the flow-guiding component, and the pump tank are sequentially interference-fitted; and / or, the filter container, the flow-guiding component, and the pump tank are coaxially arranged.

[0023] Optionally, the centrifugal extractor further includes a liquid storage container disposed on the machine body, the liquid storage container being provided with a solution outlet; the pump tank and the filter container are both arranged inside the liquid storage container, the bottom of the pump tank is provided with a drain hole, so that the solution in the pump tank is discharged to the liquid storage container through the drain hole, and then discharged from the centrifugal extractor through the solution outlet; the centrifugal extractor further includes a control valve to control the opening and closing of the solution outlet and / or the drain hole.

[0024] Optionally, the driving device includes a motor; and / or the powdered target material includes coffee powder and / or tea powder.

[0025] Based on the foregoing description, those skilled in the art will understand that in the aforementioned technical solution of this invention, the rotating filter container allows the powdered target material inside to adhere to its circumferential sidewalls under centrifugal force, increasing the vertical surface area of ​​the powdered target material. This facilitates uniform liquid penetration into the powdered target material and accelerates the extraction process. Furthermore, the filter container allows the liquid entering it to rapidly pass through the powdered target material and the first through-hole under centrifugal force, forming a solution that then enters the pump tank. When the pump tank rotates, it pumps the solution back into the filter container through its spiral channel, achieving cyclic re-extraction of the powdered target material, improving extraction efficiency and the final quality of the solution, and shortening the soaking time of the powdered target material.

[0026] Furthermore, by defining a second annular cavity in communication with the spiral channel on the bottom wall of the barrel, and setting the channel inlet as multiple through holes formed on the top wall of the second annular cavity, the solution in the barrel can flow entirely into the spiral channel through the channel inlet and the second annular cavity, and then flow back into the filter container to enter the next cycle.

[0027] Furthermore, by setting the inner side of the top of the barrel as a conical ring segment that slopes inward from top to bottom, and setting the channel outlet as multiple through holes formed on the conical ring segment, the solution flowing out of the channel outlet can flow downward under its own gravity.

[0028] Furthermore, by including a receiving portion with a first through hole and an annular plate portion located on the top side of the receiving portion, the filter container can stop the powdery target material in the receiving portion through the annular plate portion. By providing multiple second through holes on the annular plate portion, the filter container can receive the solution flowing out from the channel outlet through the second through holes, so as to ensure that the solution flows back to the receiving portion while also allowing the powdery target material adhering to the annular plate portion to receive the solution (if the solution in the receiving portion is thrown towards the powdery target material by centrifugal force, this part of the powdery target material is difficult to contact the solution due to its higher position).

[0029] Furthermore, by setting a flow-guiding component between the filter container and the pump tank, and defining a flow-guiding cavity within the flow-guiding component, and setting a first flow-guiding hole opposite to the channel outlet and a second flow-guiding hole opposite to the filter container on the peripheral wall of the flow-guiding cavity, the solution flowing out of the channel outlet can enter the filter container through the first flow-guiding hole, the flow-guiding cavity, and the second flow-guiding hole, thus defining the flow path of the solution and preventing the solution pumped out of the pump tank from being thrown everywhere under the action of centrifugal force.

[0030] Furthermore, a buffer chamber is provided between the filter container and the pump tank to buffer the solution that has been ejected by the filter container but has not yet been delivered by the pump tank.

[0031] Furthermore, by sequentially interfering with the filter container, the flow guide component, and the pump tank, and by coaxially arranging the filter container, the flow guide component, and the pump tank, the diameter of the pump tank is increased, thereby increasing the centrifugal force on the solution inside the pump tank and improving the pump tank's pumping capacity for the solution.

[0032] Other beneficial effects of the present invention will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the improved objectives, features and advantages of the present invention. Attached Figure Description

[0033] To more clearly illustrate the technical solution of the present invention, some embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that the same reference numerals may indicate the same or similar parts or components in different drawings; the drawings of the present invention are not necessarily drawn to scale.

[0034] In the attached image:

[0035] Figure 1 These are exploded structural diagrams of the centrifugal extractor in some embodiments of the present invention;

[0036] Figure 2 These are isometric views of a centrifugal extractor in some embodiments of the present invention;

[0037] Figure 3 yes Figure 2 A cross-sectional view of a centrifugal extractor along the AA direction;

[0038] Figure 4 yes Figures 1 to 3 First isometric view of the filter container;

[0039] Figure 5 yes Figures 1 to 3 Second isometric view of the filter container;

[0040] Figure 6 yes Figure 4 Cross-sectional view of the filter container along the BB direction;

[0041] Figure 7 yes Figures 1 to 3 Exploded view of the structure of the pump tank;

[0042] Figure 8 yes Figures 1 to 3 First isometric view of the water tank of the intermediate pump;

[0043] Figure 9 yes Figures 1 to 3 Second axonometric view of the water tank of the intermediate pump;

[0044] Figure 10 yes Figure 8 A cross-sectional view of the pump tank along the CC direction;

[0045] Figure 11 yes Figure 8 A cross-sectional view of the pump tank along the CC direction (the helical component is omitted);

[0046] Figure 12 yes Figures 1 to 3 First axonometric view of the central drainage component;

[0047] Figure 13 yes Figures 1 to 3 Second axonometric view of the central drainage component;

[0048] Figure 14 yes Figure 12 A cross-sectional view of the central drainage component along the DD direction;

[0049] Figure 15 yes Figures 1 to 3 First axonometric view of the middle cap;

[0050] Figure 16 yes Figures 1 to 3 Second axonometric view of the middle cap;

[0051] Figure 17 yes Figure 2 A cross-sectional view of a centrifugal extractor along the AA direction (the machine body and liquid storage container are hidden);

[0052] Figure 18 yes Figure 17 A cross-sectional view of the filter container, cap, and powdered target material along the EE direction.

[0053] Explanation of reference numerals in the attached figures:

[0054] 001. Centrifugal extractor; 002. Powdered target substance;

[0055] 100. Body; 101. Top mounting cavity; 102. Clearance notch; 103. Bottom mounting cavity; 110. Knob;

[0056] 200. Drive unit; 210. Motor; 220. Connector;

[0057] 300, Filter container; 301, First through hole; 302, Second through hole; 310, Receiving part; 320, Annular plate part; 330, Neck; 340, Flanged edge;

[0058] 400, Pump tank; 401, Spiral channel; 402, Channel inlet; 403, Channel outlet; 404, Drain hole; 405, First clearance hole; 410, Tank body; 4101, First annular cavity; 4102, Second annular cavity; 411, Conical annular segment; 420, Spiral component;

[0059] 500, Drainage component; 501, Second clearance hole; 510, Drainage cavity; 511, First drainage hole; 512, Second drainage hole; 520, Buffer cavity; 521, Buffer inlet; 522, Buffer outlet;

[0060] 600. Liquid storage container; 601. Solution outlet; 610. Protrusion; 620. Inner flange;

[0061] 700. Control valve;

[0062] 800, cap; 810, large diameter section; 820, small diameter section; 821, spray hole; 830, annular retaining edge. Detailed Implementation

[0063] Those skilled in the art should understand that the embodiments described below are merely a part of the embodiments of the present invention, and not all of the embodiments of the present invention. These partial embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0064] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0065] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. For example, unless otherwise specified, the terms "installation," "connection," "joining," and "fixing" can specifically refer to any feasible connection form such as bolted connections, screw connections, welding, insertion, riveting, fusion welding, and snap-fitting.

[0066] like Figures 1 to 3 As shown, in some embodiments of the present invention, the centrifugal extractor 001 innovatively uses centrifugal extraction technology and includes a body 100, a drive unit 200, a filter container 300 and a pump tank 400.

[0067] from Figure 3 As can be seen from the above, in some embodiments of the present invention, the drive device 200 is mounted on the body 100.

[0068] like Figures 3 to 6As shown, in some embodiments of the present invention, a plurality of first through holes 301 are provided on the circumferential sidewall of the filter container 300. The filter container 300 is driven to rotate by the drive device 200, so that the powdered target material 002 (e.g., powdered target material 002) put into the filter container 300 can be rotated by the drive device 200. Figure 17 and Figure 18 As shown, the liquid adheres to the circumferential sidewall of the filter container 300 under the action of centrifugal force, and the liquid entering the filter container 300 passes through the powdered target 002 and the first through hole 301 under the action of centrifugal force to form a solution.

[0069] like Figure 3 , Figures 7 to 10 As shown, in some embodiments of the present invention, a pump tank 400 is disposed outside the filter container 300 to receive the solution ejected from the filter container 300. The pump tank 400 is provided with a spiral channel 401 formed on its wall, a channel inlet 402 located at the bottom end of the spiral channel 401, and a channel outlet 403 located at the top end of the spiral channel 401. The pump tank 400 is driven to rotate by a drive device 200, causing the solution in the pump tank 400 to enter the spiral channel 401 through the channel inlet 402 under the action of centrifugal force, and then be lifted by the spiral channel 401 to the channel outlet 403 and flow back to the filter container 300.

[0070] Those skilled in the art will understand that, in some embodiments of the present invention, the filter container 300 allows the powdered target material 002 inside to adhere to its circumferential sidewall under centrifugal force, increasing the vertical surface area of ​​the powdered target material 002, which is beneficial for the uniform penetration of liquid into the powdered target material 002 and accelerates the extraction process. Furthermore, the filter container 300 also allows the liquid entering it to rapidly pass through the powdered target material 002 and the first through-hole 301 under centrifugal force, forming a solution, and then entering the pump tank 400. When the pump tank 400 rotates, it can pump the solution back into the filter container 300 through the spiral channel 401, achieving cyclic re-extraction of the powdered target material 002 by the solution, improving extraction efficiency and the final quality of the solution, and shortening the soaking time of the powdered target material 002.

[0071] It should be noted that, in this invention, the powdered target 002 includes coffee powder and / or tea powder. For example, the powdered target 002 can be coffee powder or tea powder, or a mixture of coffee powder and tea powder.

[0072] Of course, those skilled in the art may, as needed, make the powdered target 002 include any other feasible powdered substances, such as soybean powder, mung bean powder, cocoa powder, etc.

[0073] It should also be noted that, in this invention, the liquid can be hot water, room temperature water, or cold water in terms of temperature, and can be pure water, tap water, mineral water, or water containing specific substances (such as sugar, milk, flavorings, etc.) in terms of composition. The solution is the above-mentioned liquid containing the powdered target substance 002.

[0074] like Figure 1 and Figure 3 As shown, in some embodiments of the present invention, the drive device 200 includes a motor 210 and a connector 220. The motor 210 is fixedly connected to the body 100 via its housing, and the motor 210 is fixedly connected to the connector 220 via its shaft. The connector 220 is fixedly connected to the filter container 300 and the pump tank 400, so that the motor 210 drives the filter container 300 and the pump tank 400 to rotate via the connector 220.

[0075] The connector 220 can be any feasible structure, such as a plate-shaped structure, column-shaped structure, Y-shaped structure, or triangular structure. The connector 220 is provided with a shaft hole (not marked in the figure) that matches the shaft of the motor 210, so as to achieve a fixed connection between the connector 220 and the shaft of the motor 210. Alternatively, the connector 220 is provided with a connecting shaft, which is fixedly connected to the shaft of the motor 210 via a coupling.

[0076] Alternatively, those skilled in the art may, as needed, connect the connector 220 and the shaft of the motor 210 together using any other feasible connection method, such as welding, bolting, flange connection, etc.

[0077] Furthermore, connector 220 is provided with multiple connection holes, and filter container 300 and pump tank 400 are also each provided with multiple connection holes, so as to fix filter container 300 and pump tank 400 to connector 220 respectively by means of bolts that match the connection holes of the three. Alternatively, one of filter container 300 and pump tank 400 can be fixed to connector 220, and then that one can be connected to the other of filter container 300 and pump tank 400 by means of interference fit, welding, riveting, snap-fit, bolt connection, etc.

[0078] Furthermore, in other embodiments of the present invention, those skilled in the art can also configure the drive device 200 in any other feasible form as needed. For example, the drive device 200 may consist only of a motor 210, and the shaft of the motor 210 may be directly and fixedly connected to at least one of the filter container 300 and the pump tank 400. When the shaft of the motor 210 is fixedly connected to only one of the filter container 300 and the pump tank 400, that one component may be connected to the other component of the filter container 300 and the pump tank 400 by means of interference fit, welding, riveting, snap-fit, bolt connection, etc.

[0079] like Figure 3 As shown, the filter container 300 is located axially between the channel inlet 402 and the channel outlet 403 so that the solution ejected from the filter container 300 can flow to the channel inlet 402 and the filter container 300 can receive the solution flowing out from the channel outlet 403.

[0080] It should be noted that, in the description of this invention, "axial" can be a direction parallel to the rotation axis of the filter container 300 and / or the rotation axis of the pump tank 400.

[0081] like Figures 4 to 6 As shown, in some embodiments of the present invention, the radial cross section of the filter container 300 perpendicular to its axial direction is circular to improve the dynamic balance of the filter container 300 when it rotates, so that the filter container 300 has good rotational performance when it rotates.

[0082] Furthermore, in other embodiments of the present invention, those skilled in the art may, as needed, make the radial cross-section of the filter container 300 perpendicular to its axial direction into a plum blossom shape, a polygon (e.g., a hexagon, an octagon, a dodecagon, etc.), a rectangle, etc.

[0083] like Figures 4 to 6 As shown, in some embodiments of the present invention, the filter container 300 includes a receiving portion 310 having a first through hole 301 and an annular plate portion 320 located on the top side of the receiving portion 310, so as to stop the powdery target 002 in the receiving portion 310 by the annular plate portion 320, and prevent the powdery target 002 in the receiving portion 310 from moving upward under the action of centrifugal force.

[0084] Those skilled in the art will understand that when the filter container 300 rotates, the powdery target material 002 inside the filter container 300 will adhere tightly to the circumferential sidewall of the filter container 300 under the action of centrifugal force. When there is a large amount of powdery target material 002 inside the filter container 300, the powdery target material 002 on the side closer to the axis of the filter container 300 in the radial direction (hereinafter referred to as the inner side) will continuously squeeze the powdery target material 002 on the side farther away from the axis of the filter container 300 (hereinafter referred to as the outer side), causing the outer powdery target material 002 to be flattened and thus become longer in the axial direction. The presence of the annular plate portion 320 can precisely prevent the outer powdery target material 002 from becoming longer in the axial direction. Without the annular plate portion 320, the powdery target material 002 at the top inside the filter container 300 would be thinner, resulting in a large difference in the thickness of the powdery target material 002 inside the filter container 300.

[0085] Continue reading Figures 4 to 6In some embodiments of the present invention, the annular plate portion 320 may also be provided with a plurality of second through holes 302 so that the filter container 300 receives the solution flowing out from the channel outlet 403 through the second through holes 302.

[0086] Those skilled in the art will understand that the second through hole 302 can ensure that the solution flows back to the receiving part 310 while also allowing the powdered target 002 that is attached to the annular plate part 320 to receive the solution (if the solution in the receiving part 310 is thrown towards the powdered target 002 by centrifugal force, the powdered target 002 will have difficulty contacting the solution due to its higher position).

[0087] Continue reading Figures 4 to 6 In some embodiments of the present invention, the filter container 300 may further include a neck 330 located on the top side of the annular plate portion 320 and connected to the inner end of the annular plate portion 320, so that the filter container 300 receives the powdered target material 002 through the neck 330.

[0088] Those skilled in the art will understand that by giving the filter container 300 a neck 330, the inlet at the top of the filter container 300 is high enough to facilitate the user to add the powdered target 002 into the filter container 300.

[0089] Continue reading Figures 4 to 6 In some embodiments of the present invention, the filter container 300 may further include a flange 340 located on the top side of the neck 330 to improve the structural strength of the neck 330 and prevent the neck 330 from deforming in the radial direction.

[0090] Furthermore, in other embodiments of the present invention, those skilled in the art may, as needed, set the filter container 300 to any other feasible shape, for example, omit the flange 340, or omit the neck 330 and the flange 340, or set the filter container 300 to a bottle shape.

[0091] like Figures 7 to 11 As shown, in some embodiments of the present invention, the pump tank 400 includes a tank body 410 and a spiral component 420.

[0092] Continue reading Figures 7 to 11 Both the channel inlet 402 and the channel outlet 403 are formed on the barrel body 410. Furthermore, a first annular cavity 4101 is defined within the circumferential sidewall of the barrel body 410, which is connected to the channel inlet 402 and the channel outlet 403 respectively.

[0093] like Figure 10 As shown, the spiral member 420 is arranged in the first annular cavity 4101 so that the peripheral wall of the first annular cavity 4101 and the spiral member 420 together define the spiral channel 401.

[0094] Furthermore, although not shown in the figure, the barrel 410 includes at least two parts, such that after the spiral member 420 is installed onto one of the two parts, the other part is then installed onto that part.

[0095] Those skilled in the art will understand that the combination of the barrel 410 and the spiral component 420 defines the spiral channel 401, which facilitates the production and processing of the pump barrel 400.

[0096] In addition, those skilled in the art can also set the barrel 410 and the spiral component 420 as a whole as needed, for example by injection molding, casting or 3D printing.

[0097] like Figure 10 and Figure 11 As shown, in some embodiments of the present invention, the bottom wall of the barrel 410 defines a second annular cavity 4102 that communicates with the first annular cavity 4101. Furthermore, the channel inlet 402 is a plurality of through holes formed on the top wall of the second annular cavity 4102.

[0098] Those skilled in the art will understand that by defining a second annular cavity 4102 communicating with the spiral channel 401 on the bottom wall of the barrel 410, and setting the channel inlet 402 as a plurality of through holes formed on the top wall of the second annular cavity 4102, the solution in the barrel 410 can flow entirely through the channel inlet 402 and the second annular cavity 4102 to the spiral channel 401, and then flow back to the filter container 300 to enter the next cycle.

[0099] It should be noted that the bottom wall of the barrel 410 shown in the figure is an annular structure to avoid the connector 220. When the aforementioned connection between the drive device 200 and the filter container 300 and the pump tank 400 can be achieved (see above for details), those skilled in the art can also, as needed, set the bottom wall of the barrel 410 to any other feasible structure, such as a circular plate structure without holes, and fix the connector 220 or the rotating shaft of the motor 210 to the bottom wall of the barrel 410, so that the filter container 300 is fixedly connected to the barrel 410.

[0100] Furthermore, in other embodiments of the present invention, those skilled in the art may omit the second annular cavity 4102 as needed, and form the channel inlet 402 at the bottom of the circumferential sidewall of the barrel 410.

[0101] like Figure 7 , Figure 8 , Figure 10 and Figure 11As shown, in some embodiments of the present invention, a tapered ring segment 411 is provided on the inner side of the top of the barrel body 410, and the tapered ring segment 411 is inclined inward from top to bottom. Furthermore, the channel outlet 403 consists of a plurality of through holes formed on the tapered ring segment 411.

[0102] Those skilled in the art will understand that by setting the inner side of the top of the barrel 410 as a conical ring segment 411 that slopes inward from top to bottom, and setting the channel outlet 403 as a plurality of through holes formed on the conical ring segment 411, the solution flowing out of the channel outlet 403 can flow downward under its own gravity.

[0103] Furthermore, in other embodiments of the present invention, those skilled in the art may omit the conical ring segment 411 as needed and place the channel outlet 403 on the inner side of the top of the barrel body 410. Alternatively, those skilled in the art may, as needed, configure the aforementioned conical ring segment 411 to be in a form that slopes outward from top to bottom.

[0104] like Figure 1 and Figure 3 As shown, in some embodiments of the present invention, the centrifugal extractor 001 may further include a flow guiding member 500 disposed between the filter container 300 and the pump water tank 400, the flow guiding member 500 being used to guide the solution flowing out of the channel outlet 403 to the filter container 300.

[0105] like Figures 12 to 14 As shown, in some embodiments of the present invention, the drainage member 500 defines a drainage cavity 510, and the peripheral wall of the drainage cavity 510 is provided with a first drainage hole 511 opposite to the channel outlet 403 and a second drainage hole 512 opposite to the filter container 300, so that the solution flowing out of the channel outlet 403 enters the filter container 300 through the first drainage hole 511, the drainage cavity 510 and the second drainage hole 512.

[0106] The first drainage hole 511 is formed on the outer side wall of the drainage cavity 510 in the circumferential direction, corresponding to the channel outlet 403 on the pump water tank 400. The second drainage hole 512 is formed on the bottom wall of the drainage cavity 510, corresponding to the second through hole 302 on the filter container 300.

[0107] like Figure 3 and Figure 14 As shown, the outer peripheral wall of the drainage cavity 510 is a conical structure that matches the conical ring segment 411 at the top of the pump water tank 400, so as to ensure that the outer peripheral wall of the drainage cavity 510 and the conical ring segment 411 of the pump water tank 400 can fit together, thereby preventing the solution flowing out from the channel outlet 403 from overflowing through the gap between the outer peripheral wall of the drainage cavity 510 and the conical ring segment 411 of the pump water tank 400.

[0108] Those skilled in the art will understand that by providing a flow guiding member 500 between the filter container 300 and the pump tank 400, and by defining a flow guiding cavity 510 within the flow guiding member 500, and by providing a first flow guiding hole 511 opposite to the channel outlet 403 and a second flow guiding hole 512 opposite to the filter container 300 on the peripheral wall of the flow guiding cavity 510, the solution flowing out of the channel outlet 403 can enter the filter container 300 through the first flow guiding hole 511, the flow guiding cavity 510, and the second flow guiding hole 512, thus defining the flow path of the solution and preventing the solution pumped from the pump tank 400 from being thrown everywhere under the action of centrifugal force.

[0109] Go back and continue reading Figure 3 The bottom wall of the drainage cavity 510 abuts against the filter container 300 to stop the filter container 300 in the axial direction, thereby increasing the connection strength of the overall structure and reducing the volume of the overall structure.

[0110] Continue reading Figure 3 At least a portion of the flow-guiding component 500 is located radially between the filter container 300 and the pump tank 400 to reduce the axial height of the centrifugal extractor 001.

[0111] As described above, the flow guide 500 can be fixedly connected to the filter container 300 and the pump tank 400 respectively, so that the drive device 200 transmits power to the pump tank 400 through the filter container 300 and the flow guide 500. For example, the filter container 300, the flow guide 500 and the pump tank 400 are sequentially interference-fitted.

[0112] like Figure 1 and Figure 3 As shown, in some embodiments of the present invention, the diversion member 500 is generally cylindrical, and the filter container 300, the diversion member 500 and the pump water tank 400 are coaxially arranged to improve the stability of the three when rotating.

[0113] Continue reading Figure 3 In this invention, the flow guide 500, the filter container 300, and the pump tank 400 define a buffer chamber 520 at least through the flow guide 500. Furthermore, the buffer chamber 520 is connected to the first through hole 301 and the channel inlet 402, respectively, so that the buffer chamber 520 receives and buffers the solution ejected from the first through hole 301, and allows the solution within the buffer chamber 520 to enter the spiral channel 401 via the channel inlet 402.

[0114] Those skilled in the art will understand that by providing a buffer chamber 520 between the filter container 300 and the pump tank 400, solution ejected by the filter container 300 but not yet transported by the pump tank 400 is buffered. Simultaneously, the presence of the buffer chamber 520 increases the diameter of the pump tank 400, thereby increasing the centrifugal force on the solution within the pump tank 400 and enhancing the pumping capacity of the pump tank 400.

[0115] like Figure 14 As shown, in some embodiments of the present invention, the buffer cavity 520 is separately defined by the drainage member 500.

[0116] like Figures 12 to 14 As shown, the flow guiding member 500 has a buffer inlet 521 and a buffer outlet 522 on the peripheral wall of the buffer chamber 520. The buffer inlet 521 is aligned with the first through hole 301 on the filter container 300, and the buffer outlet 522 is aligned with the channel inlet 402 on the pump tank 400, so that the liquid thrown out from the filter container 300 can smoothly enter the spiral channel 401 connected to the channel inlet 402.

[0117] Furthermore, in other embodiments of the present invention, those skilled in the art may, as needed, configure the drainage member 500 as any other feasible member, such as a member that defines only the drainage cavity 510, thereby allowing the buffer cavity 520 to be jointly defined by the drainage member 500, the filter container 300, and the pump tank 400. Further, the outer and inner peripheral walls of the drainage cavity 510 may be omitted.

[0118] Of course, in other embodiments of the present invention, those skilled in the art may omit the buffer cavity 520 as needed.

[0119] like Figures 1 to 3 As shown, in some embodiments of the present invention, the centrifugal extractor 001 may further include a liquid storage container 600 disposed on the machine body 100, the liquid storage container 600 being provided with a solution outlet 601. The liquid storage container 600 may be detachably connected to the machine body 100, may be fixedly connected to the machine body 100, or may be integrally formed with the machine body 100.

[0120] Furthermore, both the pump tank 400 and the filter container 300 are arranged inside the liquid storage container 600. The bottom of the pump tank 400 is provided with a drain hole 404 so that the solution in the pump tank 400 is discharged to the liquid storage container 600 through the drain hole 404, and then discharged from the centrifugal extractor 001 through the solution outlet 601.

[0121] like Figures 1 to 3As shown, in some embodiments of the present invention, the liquid storage container 600 may be provided with a protrusion 610 that protrudes radially outward, and a solution outlet 601 is formed on the protrusion 610, so as to reduce the gap between the area of ​​the liquid storage container 600 other than the protrusion 610 and the liquid storage container 600 while ensuring that the liquid storage container 600 can receive and discharge the solution.

[0122] like Figure 1 and Figure 3 As shown, in some embodiments of the present invention, the bottom wall of the liquid storage container 600 is hollow to avoid the connector 220. In order to prevent the solution in the liquid storage container 600 from flowing out, an inner baffle 620 is also provided inside the liquid storage container 600.

[0123] like Figure 1 and Figure 3 As shown, the fuselage 100 may be provided with a top mounting cavity 101, a clearance notch 102 and a bottom mounting cavity 103.

[0124] The top mounting cavity 101 is used to install the filter container 300, the pump tank 400, the diversion component 500, and the liquid storage container 600.

[0125] The clearance notch 102 is adapted to the protrusion 610 on the liquid storage container 600 so that the protrusion 610 of the liquid storage container 600 is embedded in the clearance notch 102 to prevent the liquid storage container 600 from rotating relative to the body 100.

[0126] The bottom mounting cavity 103 is used to mount the motor 210.

[0127] like Figures 1 to 3 As shown, in some embodiments of the present invention, a knob 110 is provided on the body 100, which is used to control the rotation speed of the filter container 300 and the pump tank 400.

[0128] Furthermore, those skilled in the art can omit the knob 110 as needed and control the rotation speed of the filter container 300 and the pump tank 400 using other buttons or other devices. These other buttons can be physical buttons on the centrifugal extractor 001 or virtual buttons displayed on the screen of the centrifugal extractor 001. Other devices can be a remote control compatible with the centrifugal extractor 001, or a mobile phone, tablet, or other device that communicates with the centrifugal extractor 001.

[0129] like Figure 1 and Figure 3 As shown, in some embodiments of the present invention, the centrifugal extractor 001 further includes a control valve 700 to control the opening and closing of the solution outlet 601 and / or the drain hole 404.

[0130] Furthermore, the control valve 700 is a wax motor installed at the drain port 404.

[0131] Of course, those skilled in the art can also configure the control valve 700 with any other feasible structure, such as a solenoid valve, as needed. Furthermore, those skilled in the art can also position the control valve 700 at the solution outlet 601 as needed.

[0132] like Figure 10 As shown, in some embodiments of the present invention, the pump tank 400 is provided with a first clearance hole 405 at the top of the second annular cavity 4102. The first clearance hole 405 is used to allow clearance for the control valve 700, providing sufficient space for the installation of the control valve 700. Exemplarily, the control valve 700, which serves as a wax motor, is installed in the first clearance hole 405 (e.g., with an interference fit to the first clearance hole 405).

[0133] like Figure 13 and Figure 14 As shown, in some embodiments of the present invention, the bottom of the drainage member 500 is provided with a second clearance hole 501, which is used to avoid the control valve 700 and to provide sufficient space for the installation of the control valve 700.

[0134] like Figures 1 to 13 As shown, in some embodiments of the present invention, the centrifugal extractor 001 may further include a hollow cap 800, which is detachably mounted on the filter container 300 to add liquid to the filter container 300 through the cap 800.

[0135] like Figure 15 and Figure 16 As shown, in some embodiments of the present invention, the cap 800 includes a hollow large-diameter section 810 and a hollow small-diameter section 820. The large-diameter section 810 is inserted into the filter container 300, specifically adapted to fit into the neck 330 of the filter container 300. The small-diameter section 820 is inserted into the filter container 300 to reduce the space occupied by the small-diameter section 820 within the filter container 300 while guiding liquid into the filter container 300 through the small-diameter section 820.

[0136] Continue reading Figure 15 and Figure 16 In some embodiments of the present invention, a plurality of spray holes 821 are provided on the peripheral wall of the small diameter segment 820 so that the liquid in the small diameter segment 820 passes through the plurality of spray holes 821 under the action of centrifugal force and is sprayed onto the powdery target 002.

[0137] Furthermore, multiple spray holes 821 are evenly distributed along the circumference and / or axial direction of the small diameter section 820 so that the liquid in the small diameter section 820 is evenly sprayed onto the powdery target 002.

[0138] Preferably, multiple spray holes 821 are evenly distributed on the entire circumferential sidewall of the small diameter section 820, so that the liquid in the small diameter section 820 is evenly sprayed onto the powdery target 002 under the action of centrifugal force.

[0139] like Figure 3 As shown, in some embodiments of the present invention, the height of the annular plate portion 320 is less than or equal to the height of the bottom wall of the large diameter segment 810, so that the powdered target 002 at the annular plate portion 320 receives the liquid sprayed from the spray hole 821.

[0140] Furthermore, the bottom end of the small diameter segment 820 abuts against the inner bottom surface of the filter container 300 to prevent the liquid in the small diameter segment 820 from flowing out quickly through the gap between the bottom end of the small diameter segment 820 and the inner bottom surface of the filter container 300, thus preventing the liquid in the small diameter segment 820 from being evenly sprayed onto the powdered target 002.

[0141] Furthermore, in other embodiments of the present invention, those skilled in the art may, as needed, provide a bottom wall for the small-diameter segment 820 that closes its bottom opening.

[0142] Furthermore, the diameter of the spray hole 821 is selected from any value between 0.1 mm and 1 mm, so as to ensure that the liquid in the small diameter section 820 can be thrown out under the action of centrifugal force, while avoiding the liquid in the small diameter section 820 from flowing out too quickly.

[0143] Specifically, the diameter of the spray hole 821 can be any feasible value such as 0.1mm, 0.2mm, 0.3mm, 0.5mm, 0.8mm, or 1mm.

[0144] Furthermore, the diameter of the small diameter segment 820 is selected from any value between 5 mm and 20 mm, so as to avoid the liquid in the small diameter segment 820 from flowing out too quickly, while ensuring that the circumferential sidewall of the small diameter segment 820 has sufficient surface area so that the liquid in the small diameter segment 820 is evenly sprayed onto the powdered target 002 under the action of centrifugal force.

[0145] Specifically, the diameter of the small diameter segment 820 can be any feasible value such as 5mm, 7mm, 10mm, 12mm, 15mm, 18mm, 20mm, etc.

[0146] Furthermore, the ratio of the diameter of the small diameter segment 820 to the diameter of the large diameter segment 810 is selected from any value between 0.2 and 0.8, so that the liquid is buffered by the large diameter segment 810 before flowing into the small diameter segment 820, so as to prevent the liquid from overflowing from the cap 800 due to excessive liquid being added at one time.

[0147] Specifically, the ratio of the diameter of the small diameter segment 820 to the diameter of the large diameter segment 810 can be any feasible value such as 0.2, 0.3, 0.33, 0.4, 0.5, 0.6, 0.8, etc.

[0148] Furthermore, the bottom wall of the large-diameter section 810 can be inclined downward from the outside to the inside to form a funnel shape, so that the liquid in the large-diameter section 810 can flow entirely into the small-diameter section 820.

[0149] like Figure 15 and Figure 16 As shown, in some embodiments of the present invention, the cap 800 may further include an annular retaining edge 830 disposed at the end of the large-diameter segment 810 away from the small-diameter segment 820, the annular retaining edge 830 abutting against the top end of the filter container 300 (specifically, the flange 340 of the filter container 300). Simultaneously, the annular retaining edge 830 can also increase the radial structural strength of the cap 800.

[0150] The following reference Figure 3 , Figure 17 and Figure 18 The following is a brief description of the usage and working principle of the centrifugal extractor 001 in some embodiments of the present invention.

[0151] like Figure 17 and Figure 18 As shown, when using the centrifugal extractor 001, first remove the cap 800. Then, add a sufficient amount of the powdered target substance 002 into the filter container 300.

[0152] To facilitate users in adding a sufficient amount of powdered target substance 002 into the filter container 300, a measuring cup or measuring spoon can be provided for the centrifugal extractor 001 to measure the amount of powdered target substance 002 added into the filter container 300.

[0153] Then, start the centrifugal extractor 001 (first start), which moves the powdery target 002 in the center of the filter container 300 to the circumferential side wall of the filter container 300, leaving enough space for the cap 800 and preventing the powdery target 002 in the filter container 300 from affecting the installation of the cap 800. Alternatively, the powdery target 002 in the center of the filter container 300 can be swept to the circumferential side wall of the filter container 300 using tools such as chopsticks, spoons, or brushes.

[0154] Then, start the centrifugal extractor 001 (second start) and inject liquid (e.g., water) into the cap 800. This water injection process can be performed by the user or by configuring a water pumping system for the centrifugal extractor 001 and having that system perform the injection.

[0155] If the process is performed by the user, a measuring cup can be configured for the centrifugal extractor 001 to measure the volume of liquid added into the filter container 300.

[0156] like Figure 17 and Figure 18 As shown, during this process, the powdered target material 002 inside the filter container 300 adheres tightly to the circumferential sidewall of the filter container 300 under the action of centrifugal force, and is roughly in a ring shape. It should be understood that the ring shape of the powdered target material 002 is an ideal state. In actual use, it may not be possible to form a ring shape due to the amount of powdered target material 002 and the rotation speed of the filter container 300.

[0157] Meanwhile, the liquid and solution inside the centrifugal extractor 001, such as Figure 17 and Figure 18 The flow is indicated by the dashed arrow. Specifically:

[0158] Under centrifugal force, the liquid inside the cap 800 is evenly sprayed onto the powdered target 002 through the spray hole 821, penetrating the powdered target 002 and dissolving some substances in it. The solution containing the dissolved powdered target 002 is then ejected from the filter container 300 through the first through hole 301 under centrifugal force, and enters the buffer chamber 520 within the flow guide member 500 through the buffer inlet 521.

[0159] Under the influence of gravity, the solution in the buffer chamber 520 enters the second annular chamber 4102 of the pump tank 400 through the buffer outlet 522 and the channel outlet 403.

[0160] The solution in the second annular cavity 4102 is thrown into the first annular cavity 4101, which has a spiral channel 401, under the action of centrifugal force.

[0161] As the pump tank 400 rotates, the bottom surface of the spiral channel 401 provides an upward lift force to the solution entering the spiral channel 401. Under the action of this lift force, the solution in the first annular cavity 4101 rises to the top of the spiral channel 401 and enters the drainage cavity 510 through the channel inlet 402 and the first drainage hole 511.

[0162] Under the influence of gravity, the solution in the drainage chamber 510 is squeezed back into the receiving part 310 of the filter container 300 through the second drainage hole 512 and the second through hole 302, and then the above cycle is repeated.

[0163] Those skilled in the art will understand that if the pump tank 400 has a strong infusion capacity, the solution will fill the drainage cavity 510 and create a certain pressure. Under the action of this pressure, the solution in the drainage cavity 510 will be quickly squeezed back into the receiving part 310 of the filter container 300 through the second drainage hole 512 and the second through hole 302, and the above cycle will be repeated.

[0164] After centrifugal extraction is completed, control valve 700 is opened, allowing the solution in filter container 300, pump water tank 400 and diversion component 500 to enter storage container 600 through drain hole 404 under the action of gravity, and finally flow out of centrifugal extractor 001 from solution outlet 601.

[0165] In this invention, the condition for determining whether centrifugal extraction has ended can be that the filter container 300, the pump tank 400, and the flow guide 500 are rotated for a set time (e.g., any feasible time such as 3 min, 5 min, 8 min, 12 min, etc.), or the concentration of the solution reaches a preset value (e.g., 1%, 3%, 5%, 8%, 10%, 20%, 50%, etc.), or it can be determined by the user.

[0166] If the condition for determining whether centrifugal extraction has ended is that the concentration of the solution has reached a preset value, the centrifugal extractor 001 is also equipped with a concentration sensor to detect the concentration of the solution in the filter container 300, the pump tank 400, and the diversion component 500.

[0167] During the above process, the rotational speeds of the filter container 300 and the pump tank 400 during the first and second startups can be the same or different. Furthermore, the rotational speeds of the filter container 300 and the pump tank 400 can be any value between 200 r / min and 6000 r / min, such as 200 r / min, 500 r / min, 2000 r / min, 3500 r / min, 4800 r / min, 5000 r / min, 6000 r / min, etc.

[0168] In this invention, the concentration sensor can be arranged at the inner bottom of the pump tank 400, for example, within the second annular cavity 4102. Furthermore, the power lines and / or signal lines corresponding to the concentration sensor and control valve 710 can be led out via connector 220 to the bottom mounting cavity 103 of the body 100. Specifically, lead holes for avoiding the power lines and / or signal lines can be provided on connector 220.

[0169] Furthermore, the centrifugal extractor 001 of the present invention can also be used in conjunction with filter paper, for example, by placing filter paper in the filter container 300 before adding the powdered target 002 into the filter container 300.

[0170] In summary, the centrifugal extractor 001 of the present invention can perform cyclic extraction of powdered target material 002 through centrifugation, which not only has a longer extraction time but also higher extraction efficiency and final solution quality. Furthermore, it can achieve three-stage filtration through the liquid passage holes on the filter container 300, the pump tank 400, and the flow guide component 500, resulting in even better filtration of the solution.

[0171] The technical solutions of the present invention have been described in conjunction with several embodiments above. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Without departing from the technical principles of the present invention, those skilled in the art can disassemble and combine the technical solutions in the above embodiments, and can also make equivalent changes or substitutions to related technical features. Any changes, equivalent substitutions, improvements, etc., made within the technical concept and / or technical principles of the present invention will fall within the scope of protection of the present invention.

[0172] Finally, it should be noted that in this invention, the term "connection" refers to fluid communication, allowing fluid (e.g., air, liquid) to flow between two interconnected entities. Furthermore, this "connection" can be either a leak-free flow of fluid between two interconnected entities, or a flow with slight leakage of fluid between two interconnected entities.

Claims

1. A centrifugal extractor, comprising: body; The drive unit is mounted on the machine body; A filter container has a plurality of first through holes on its circumferential sidewall. The filter container is driven to rotate by the drive device, so that the powdered target material put into the filter container adheres to the circumferential sidewall of the filter container under the action of centrifugal force, and the liquid entering the filter container passes through the powdered target material and the first through holes under the action of centrifugal force to form a solution. A pump tank, disposed outside the filter container, receives the solution ejected from the filter container. The pump tank has a spiral channel formed on its wall, a channel inlet at the bottom of the spiral channel, and a channel outlet at the top of the spiral channel. The pump tank is driven to rotate by the drive device, causing the solution in the pump tank to enter the spiral channel through the channel inlet under the action of centrifugal force, and then be lifted by the spiral channel to the channel outlet and flow back to the filter container.

2. The centrifugal extractor according to claim 1, wherein, The pump tank includes a tank body and a spiral component. The barrel body has a first annular cavity defined in the circumferential sidewall, and the spiral member is arranged in the first annular cavity so that the circumferential wall of the first annular cavity and the spiral member together define the spiral channel. Both the channel inlet and the channel outlet are formed on the barrel body.

3. The centrifugal extractor according to claim 2, wherein, The bottom wall of the barrel defines a second annular cavity that communicates with the first annular cavity. The channel inlet is formed by multiple through holes on the top wall of the second annular cavity.

4. The centrifugal extractor according to claim 2, wherein, A conical ring segment is provided on the inner side of the top of the barrel, and the conical ring segment is inclined inward from top to bottom; The channel outlet is formed by multiple through holes on the conical annular segment.

5. The centrifugal extractor according to claim 1, wherein, The filter container is positioned axially between the channel inlet and the channel outlet so that the solution ejected from the filter container can flow to the channel inlet and the filter container can receive the solution flowing out from the channel outlet.

6. The centrifugal extractor according to claim 5, wherein, The filter container includes a receiving portion having the first through hole and an annular plate portion located on the top side of the receiving portion, so as to block the powdery target material in the receiving portion through the annular plate portion; The annular plate is provided with a plurality of second through holes so that the filter container can receive the solution flowing out of the channel outlet through the second through holes.

7. The centrifugal extractor according to claim 6, wherein, The filter container further includes a neck located on the top side of the annular plate portion and connected to the inner end of the annular plate portion, so that the filter container receives the powdered target material through the neck.

8. The centrifugal extractor according to any one of claims 1 to 7, wherein, The centrifugal extractor also includes a flow guiding component disposed between the filter container and the pump tank, the flow guiding component being used to guide the solution flowing out of the channel outlet to the filter container.

9. The centrifugal extractor according to claim 8, wherein, The drainage component defines a drainage cavity, and the peripheral wall of the drainage cavity is provided with a first drainage hole opposite to the channel outlet and a second drainage hole opposite to the filter container, so that the solution flowing out of the channel outlet enters the filter container through the first drainage hole, the drainage cavity and the second drainage hole.

10. The centrifugal extractor according to claim 9, wherein, The first drainage hole is formed on the outer side wall of the drainage cavity in the circumferential direction, and the second drainage hole is formed on the bottom wall of the drainage cavity; and / or, The bottom wall of the drainage cavity abuts against the filter container to stop the filter container in the axial direction.

11. The centrifugal extractor according to claim 8, wherein, The flow guide member, the filter container, and the pump tank all define a buffer cavity at least through the flow guide member. The buffer chamber is connected to the first through hole and the channel inlet, respectively, so that the buffer chamber receives and buffers the solution thrown out from the first through hole, and allows the solution in the buffer chamber to enter the spiral channel through the channel inlet.

12. The centrifugal extractor according to claim 8, wherein, At least a portion of the flow-guiding component is located radially between the filter container and the pump tank; The flow-guiding component is fixedly connected to the filter container and the pump tank respectively, so that the driving device transmits power to the pump tank through the filter container and the flow-guiding component.

13. The centrifugal extractor according to claim 12, wherein, The drainage component is generally cylindrical. The filter container, the flow guide member, and the pump tank are sequentially interference-fitted; and / or, the filter container, the flow guide member, and the pump tank are coaxially arranged.

14. The centrifugal extractor according to any one of claims 1 to 7, wherein, The centrifugal extractor also includes a liquid storage container disposed on the machine body, and the liquid storage container is equipped with a solution outlet; Both the pump tank and the filter container are arranged inside the liquid storage container. The bottom of the pump tank is provided with a drain hole so that the solution in the pump tank can be discharged into the liquid storage container through the drain hole, and then discharged from the centrifugal extractor through the solution outlet. The centrifugal extractor also includes a control valve to control the opening and closing of the solution outlet and / or the drain hole.

15. The centrifugal extractor according to any one of claims 1 to 14, wherein, The drive device includes a motor; and / or, The powdered target includes coffee powder and / or tea powder.

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