Centrifugal extractor

Abstract

The utility model belongs to the technical field of beverage extraction equipment, and particularly provides a centrifugal extractor. The utility model aims to solve the problem that the existing extraction equipment is relatively poor in extraction completeness of a to-be-extracted object. Therefore, the centrifugal extractor comprises a liquid storage container, a driving device, a first filtering container, a pressing block and at least one sealing ring. And the driving device and the liquid storage container are relatively fixed. The first filtering container is arranged in the liquid storage container and is in driving connection with the driving device, so that the first filtering container is used for extracting a to-be-extracted object in the first filtering container in a centrifugal manner. The pressing block is detachably mounted in the first filtering container so as to press an object to be extracted. The sealing ring and the pressing block are relatively fixed, and when the pressing block rotates along with the first filtering container, the sealing ring deforms outwards in the radial direction, so that the sealing ring abuts against the inner circumferential wall of the first filtering container, and liquid in the first filtering container is prevented from being thrown out between the first filtering container and the pressing block. The utility model solves the technical problems.

Description

TECHNICAL FIELD

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

[0002] The existing extraction equipment generally extracts coffee and other extraction objects by means of soaking, hot water brewing, cooking and the like, so as to extract target substances in the extraction objects and obtain a final drinking solution.

[0003] The principle of the above extraction method is to dissolve and diffuse the target substances in coffee and other extraction objects into a solution by means of molecular diffusion, which not only takes a long time, but also causes the extraction objects to still retain a large amount of target substances after extraction, incomplete extraction, and even affects the taste of the final drinking solution. SUMMARY

[0004] One purpose of the utility model is to solve the problem of poor completeness of extraction of the existing extraction equipment on extraction objects.

[0005] To achieve the above purpose, the utility model provides a centrifugal extractor, which comprises:

[0006] a liquid storage container;

[0007] a driving device fixed opposite to the liquid storage container;

[0008] a first filter container arranged in the liquid storage container and drivingly connected with the driving device, so that the first filter container extracts extraction objects in it by means of centrifugation;

[0009] a pressing block detachably mounted in the first filter container to compress the extraction objects;

[0010] at least one sealing ring fixed opposite to the pressing block and deformed radially outward when the pressing block rotates with the first filter container, and thus abuts against the inner circumferential wall of the first filter container to prevent liquid in the first filter container from being thrown out between the first filter container and the pressing block.

[0011] Optionally, the sealing ring comprises at least two annular portions which are sequentially distributed radially outward along the sealing ring.

[0012] Optionally, the cross section of the sealing ring is arranged in a V shape, a U shape or a W shape.

[0013] Optionally, the sealing ring is sleeved on the outside of the pressing block.

[0014] Optionally, the sealing ring is one, and an axial height of the sealing ring is greater than or equal to an axial height of the pressing block.

[0015] Optionally, the sealing ring is in interference fit with the pressing block.

[0016] Optionally, an annular groove is arranged on the pressing block, and the sealing ring is embedded in the annular groove to fix the pressing block and the sealing ring.

[0017] Optionally, the sealing ring is made of rubber or silica gel.

[0018] Optionally, the pressing block is annular to fill the first filter container with liquid through a hollow region of the pressing block.

[0019] Optionally, the centrifugal extractor further comprises a second filter container arranged between the liquid storage container and the first filter container, and the second filter container is drivingly connected with the driving device.

[0020] Based on the foregoing description, those skilled in the art can understand that, in the technical solution of the centrifugal extractor, the first filter container is driven by the driving device, so that the first filter container can centrifugally extract the target substance in the first filter container through rotation, and the target substance is thrown out of the first filter container. During centrifugal extraction, the target substance on the target substance is more easily thrown out of the first filter container, so that the centrifugal extractor improves the completeness of the extraction of the target substance. In addition, the centrifugal extractor further comprises at least one sealing ring fixed relative to the pressing block, and the sealing ring deforms radially outward when the pressing block rotates with the first filter container, and abuts against the inner circumferential wall of the first filter container, thereby preventing the liquid in the first filter container from being thrown out of the first filter container and the pressing block. Therefore, the centrifugal extractor not only improves the completeness of the extraction of the target substance, but also has a leakage prevention function during operation.

[0021] Further, the sealing ring comprises at least two annular portions, and the at least two annular portions are sequentially distributed radially outward of the sealing ring, so that the deformation amount of the sealing ring in the radial direction is increased, thereby ensuring that the sealing ring abuts against the inner circumferential wall of the first filter container.

[0022] Further, when the sealing ring is one, the axial height of the sealing ring is greater than or equal to the axial height of the pressing block, so that the area of the abutment between the pressing block and the first filter container through the sealing ring is sufficient, thereby ensuring the stability of the pressing block during rotation.

[0023] The other beneficial effects of the utility model will be described in detail in the following text in combination with the drawings, so that the improvement purpose, features and advantages of the utility model can be understood more clearly by the person skilled in the art. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to make the technical scheme of the utility model clearer, the following text will describe some embodiments of the utility model with reference to the drawings. The person skilled in the art should understand that the components or parts indicated in different drawings are the same or similar; the drawings of the utility model are not necessarily drawn in proportion to each other. In the drawings:

[0025] Figure 1 is the structure exploded view of the centrifugal extractor in some embodiments of the utility model (the first axonometric view angle);

[0026] Figure 2 is the structure exploded view of the centrifugal extractor in some embodiments of the utility model (the second axonometric view angle);

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

[0028] Figure 4 is Figure 3 the sectional view of the centrifugal extractor along the A-A direction in some embodiments of the utility model;

[0029] Figure 5 is Figure 3 the sectional view of the centrifugal extractor along the A-A direction in some embodiments of the utility model (the machine body and the liquid storage container are hidden);

[0030] Figure 6 is Figures 1 to 5 the axonometric view of the first filter container in some embodiments of the utility model;

[0031] Figure 7 is Figures 1 to 5 the first axonometric view of the second filter container in some embodiments of the utility model;

[0032] Figure 8 is Figures 1 to 5 the second axonometric view of the second filter container in some embodiments of the utility model;

[0033] Figure 9 is Figure 8 the sectional view of the second filter container along the B-B direction in some embodiments of the utility model;

[0034] Figure 10 is Figures 1 to 5 the first axonometric view of the sealing ring in some embodiments of the utility model;

[0035] Figure 11 is Figures 1 to 5 the second axonometric view of the sealing ring in some embodiments of the utility model;

[0036] Figure 12 is Figure 10 is a sectional view of the sealing ring along the direction of C-C;

[0037] Figure 13 is a structural schematic view of the pressing block and the sealing ring in some other embodiments of the utility model;

[0038] Figure 14 is Figures 1 to 5 is a sectional schematic view of the first filter container, the second filter container, the pressing block and the sealing ring (part of the first filter hole is hidden).

[0039] Explanation of reference signs:

[0040] 001, centrifugal extractor; 002, to be extracted material; 003, target material; 004, liquid;

[0041] 100, machine body; 101, top cavity; 102, bottom cavity; 110, knob;

[0042] 200, liquid storage container; 201, liquid discharge channel; 202, avoiding hole; 210, annular baffle;

[0043] 300, driving device; 310, motor; 320, connector;

[0044] 400, first filter container; 410, first circumferential side wall; 411, first filter hole;

[0045] 500, second filter container; 501, spoiler rib; 510, second circumferential side wall; 511, second filter hole; 520, annular plate; 530, inner ring part; 540, top plate; 550, outer ring part;

[0046] 600, pressing block; 610, annular groove;

[0047] 700, sealing ring; 710, annular part;

[0048] θ, circumferential direction; z, axial direction; r, radial direction. DETAILED DESCRIPTION

[0049] Those skilled in the art should understand that the embodiments described below are only part of the embodiments of the utility model, not all embodiments of the utility model, and the part of the embodiments are intended to explain the technical principles of the utility model, not to limit the protection scope of the utility model. Based on the embodiments provided by the utility model, all other embodiments obtained by those skilled in the art without creative labor should fall within the protection scope of the utility model.

[0050] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, it should not be understood as limiting the present utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0051] Furthermore, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a communication between the two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. For example, the terms "install", "connect", "connect", and "fix", unless otherwise specified, can specifically refer to any feasible connection form such as bolt connection, screw connection, welding, plug-in connection, riveting, welding, and clamping.

[0052] like Figures 1 to 5 As shown, in some embodiments of the present invention, the centrifugal extractor 001 innovatively uses centrifugal extraction technology and includes an optional body 100, a liquid storage container 200, a driving device 300, a first filter container 400, an optional second filter container 500, a pressing block 600 and at least one sealing ring 700.

[0053] The housing 100 defines a top cavity 101 and a bottom cavity 102. The top cavity 101 is used to accommodate the liquid storage container 200, the first filter container 400, and the second filter container 500, while the bottom cavity 102 is used to accommodate the drive device 300. Of course, as long as the liquid storage container 200, the drive device 300, the first filter container 400, and the second filter container 500 can be accommodated, those skilled in the art may also design the housing 100 into any other feasible shape, such as a hollow barrel-shaped member, as needed. Alternatively, those skilled in the art may also omit the housing 100 as needed. That is, as long as the liquid storage container 200, the drive device 300, the first filter container 400, and the second filter container 500 can be relatively fixed, those skilled in the art may also omit the housing 100 as needed, or integrate the housing 100 and the liquid storage container 200.

[0054] The liquid container 200 is used to contain the liquid 004 (as shown in Figure 14 FIG. 1) or the liquid 004 generated during the operation of the centrifugal extractor 001.

[0055] The driving device 300 is fixed relative to the liquid container 200. Specifically, the driving device 300 is fixedly connected to the machine body 100.

[0056] The circumferential side wall of the first filter container 400 is denoted as the first circumferential side wall 410 and is provided with a plurality of first filter holes 411. The first filter container 400 is arranged in the liquid container 200 and is drivingly connected to the driving device 300. The first filter container 400 is used to perform centrifugal extraction on the to-be-extracted substance 002 (as shown in Figure 14 FIG. 1) placed therein by rotation, and to allow the target substance 003 (as shown in Figure 14 FIG. 1) extracted therefrom to pass through the first filter holes 411.

[0057] The circumferential side wall of the second filter container 500 is denoted as the second circumferential side wall 510 and is provided with a plurality of second filter holes 511. The second filter container 500 is arranged between the liquid container 200 and the first filter container 400 and is drivingly connected to the driving device 300. The second filter holes 511 have a smaller diameter than the first filter holes 411, so as to filter the target substance 003 extracted therefrom through the second filter holes 511. In addition, the second filter container 500 can be omitted according to the needs of those skilled in the art.

[0058] The pressing block 600 is detachably mounted into the first filter container 400, and is used to press the to-be-extracted substance 002 in the first filter container 400, so as to prevent the to-be-extracted substance 002 from being thrown out of the first filter container 400.

[0059] The sealing ring 700 is fixed relative to the pressing block 600, and deforms radially r (as shown in Figure 4 FIG. 1) outward when the pressing block 600 rotates with the first filter container 400, and thus abuts against the inner circumferential wall (i.e., the first circumferential side wall 410) of the first filter container 400, so as to prevent the liquid 004 (as shown in Figure 14 FIG. 1) in the first filter container 400 from being thrown out between the first filter container 400 and the pressing block 600.

[0060] The skilled in the art can understand that the first filtering container 400 is driven by the driven device 300, so that the first filtering container 400 can centrifugally extract the to-be-extracted material 002 placed in the first filtering container 400 by rotating, and the extracted target substance 003 is thrown out of the first filtering container 400. During the centrifugal extraction, the target substance 003 on the to-be-extracted material 002 is more easily thrown out of the first filtering container 400, so that the centrifugal extractor 001 of the utility model improves the completeness of the extraction of the to-be-extracted material 002. In addition, the utility model further comprises at least one sealing ring 700 fixed relative to the pressing block 600, and the sealing ring 700 can be deformed outward along the radial direction r when the pressing block 600 rotates with the first filtering container 400, and thus abuts against the inner circumferential wall of the first filtering container 400, thereby preventing the liquid 004 in the first filtering container 400 from being thrown out of the first filtering container 400 and the pressing block 600. Therefore, the centrifugal extractor 001 of the utility model not only improves the completeness of the extraction of the to-be-extracted material 002, but also has a leakage prevention function during operation.

[0061] It should be noted that in the utility model, the to-be-extracted material 002 includes coffee powder and / or tea powder. For example, the to-be-extracted material 002 can be coffee powder or tea powder, or a mixture of coffee powder and tea powder.

[0062] Of course, the skilled in the art can also make the to-be-extracted material 002 include other any feasible powdery substances, such as soybean powder, mung bean powder, cocoa powder, lemon, etc.

[0063] The centrifugal extractor 001 of the utility model generates the liquid 004 in which the target substance 003 (such as coffee or tea) is dissolved during the extraction of the to-be-extracted material 002. Figure 14

[0064] The target substance 003 can be a substance dissolved in water in the to-be-extracted material 002. The liquid 004 is a liquid substance of the to-be-extracted material 002 itself, or can be water. The water can be hot water, normal temperature water or cold water in temperature, and can be pure water, tap water, mineral water or water in which a specific substance (such as sugar, milk, essence, etc.) is dissolved in composition.

[0065] As shown in Figures 1 to 3 In some embodiments of the utility model, the machine body 100 can further be provided with a knob 110 to adjust the rotating speed of the first filtering container 400 and the second filtering container 500 through the knob 110.

[0066] ​In addition, in other embodiments of the utility model, the person skilled in the art can also dispense with the setting of the knob 110 according to the need, and control the rotating speed of the first filter container 400 and the second filter container 500 through other buttons or other devices. Among them, the other button can be a physical button arranged on the centrifugal extractor 001 or a virtual button displayed on the display screen of the centrifugal extractor 001. The other device can be a remote controller matched with the centrifugal extractor 001, or a mobile phone, tablet computer and the like connected in communication with the centrifugal extractor 001.

[0067] As shown in Figures 1 to 4 some embodiments of the utility model, the liquid storage container 200 is placed in the top cavity 101 of the machine body 100 and can be detachably connected with the machine body 100 to facilitate the user to take down the liquid storage container 200 and clean it. Of course, the person skilled in the art can also make the liquid storage container 200 fixedly connected with the machine body 100 according to the need.

[0068] When the liquid storage container 200 is detachably connected with the machine body 100, the liquid storage container 200 and the machine body 100 are provided with a rotation stopping structure to prevent the liquid storage container 200 from rotating relative to the machine body 100. For example, Figure 1 and Figure 2 As shown, the circumferential wall of the liquid storage container 200 is provided with a protruding structure (not marked in the figure), and the machine body 100 is provided with a slot (not marked in the figure) matched with the protruding structure, the protruding structure is inserted into the slot, thereby realizing the circumferential θ (as shown in Figure 4 ) fixation of the liquid storage container 200 and the machine body 100. The side of the liquid storage container 200 away from the protruding structure can also be provided with a hanging ear (not marked in the figure), and the machine body 100 is provided with a clamping groove (not marked in the figure) corresponding to the hanging ear, the hanging ear is embedded in the clamping groove to further realize the circumferential θ fixation of the liquid storage container 200 and the machine body 100.

[0069] When the liquid storage container 200 is fixedly connected with the machine body 100, the two can be fixedly connected together through screws, buckles, adhesives and the like fixing members, structures or materials.

[0070] As shown in Figures 1 to 4 some embodiments of the utility model, the liquid storage container 200 is provided with a liquid discharge passage 201 to discharge the liquid 004 in the liquid storage container 200 through the liquid discharge passage 201.

[0071] As shown in Figure 1 , Figure 2 and Figure 4As shown in some embodiments of the utility model, the bottom wall of the liquid storage container 200 is provided with an avoiding hole 202 to avoid the driving device 300, thereby ensuring the driving connection between the driving device 300 and the first filter container 400 and the second filter container 500. The liquid storage container 200 is also provided with an annular baffle 210 extending from the bottom wall to the top side, to prevent the liquid 004 in the liquid storage container 200 from flowing out of the avoiding hole 202.

[0072] As shown in some embodiments of the utility model, Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown in some embodiments of the utility model, the driving device 300 includes a motor 310 and a connector 320. The motor 310 is fixedly connected to the body 100 through its casing, and the motor 310 is fixedly connected to the connector 320 through its rotating shaft. The connector 320 is fixedly connected to the first filter container 400 and the second filter container 500, so that the motor 310 drives the first filter container 400 and the second filter container 500 to rotate through the connector 320.

[0073] Specifically, a through hole is formed between the top cavity 101 and the bottom cavity 102 of the body 100, and the rotating shaft of the motor 310 passes through the through hole, so that the main part of the motor 310 is located in the bottom cavity 102, and the connector 320 is located in the top cavity 101.

[0074] The connector 320 can be a plate structure, a columnar structure, a Y-shaped structure, a triangular structure, etc. A rotating shaft hole (not labeled in the figure) matching the rotating shaft of the motor 310 is provided on the connector 320, so as to realize the fixed connection between the connector 320 and the rotating shaft of the motor 310 through the rotating shaft hole. Alternatively, a connecting shaft is provided on the connector 320, and the connecting shaft and the rotating shaft of the motor 310 are fixedly connected together through a shaft coupling.

[0075] Alternatively, the skilled person in the art can also connect the connector 320 and the rotating shaft of the motor 310 in other arbitrary connection ways according to the needs, such as welding, bolt connection, flange connection, etc.

[0076] Alternatively, the skilled person in the art can also detachably connect the connector 320 and the rotating shaft of the motor 310, so that the connector 320 can be detached together with the detachable liquid storage container 200.

[0077] Further, the connector 320 is fixedly connected with the first filter container 400 and the second filter container 500, so that the motor 310 drives the first filter container 400 and the second filter container 500 to rotate synchronously through the connector 320. For example, the connector 320 is welded or screw-connected with the second filter container 500, and the first filter container 400 is welded or screw-connected with the second filter container 500.

[0078] In other embodiments of the present application, the connector 320 can be set to two parts capable of synchronous rotation and detachable connection according to the needs of those skilled in the art, and one part is fixedly connected with the rotating shaft of the motor 310, and the other part is fixedly connected with the first filter container 400 and the second filter container 500. Exemplarily, the two parts of the connector 320 are provided with protruding teeth at one end close to each other, so that the two parts are engaged together through the two protruding teeth, and thus the circumferential θ of the two parts is fixed.

[0079] In addition, in other embodiments of the present application, the driving device 300 can be set to other any feasible form according to the needs of those skilled in the art, for example, the driving device 300 only includes the motor 310, and the rotating shaft of the motor 310 is directly fixedly connected with at least one of the first filter container 400 and the second filter container 500. When the rotating shaft of the motor 310 is fixedly connected with only one of the first filter container 400 and the second filter container 500, the one is connected together with the other one of the first filter container 400 and the second filter container 500 through a connection mode such as welding, riveting, clamping, bolt connection, etc.

[0080] As shown in Figure 5 and Figure 6 In some embodiments of the present application, the first filter container 400 is in a barrel-shaped structure as a whole, and a plurality of first filter holes 411 are uniformly distributed on the first circumferential side wall 410 of the first filter container 400.

[0081] In addition, those skilled in the art can also set at least one of the inner and outer sides of the first circumferential side wall 410 according to the needs. The inner and outer sides of the first circumferential side wall 410 can be the same or different.

[0082] As shown in Figure 5 , Figures 7 to 9 In some embodiments of the present application, at least one of the inner and outer sides of the second circumferential side wall 510 is provided with at least one turbulence rib 501 to disturb the liquid 004 in contact with the turbulence rib 501. In addition, the turbulence rib 501 can be provided in a strip shape (as shown in Figure 5 , Figures 7 to 9 or a spiral shape, and other any feasible shape.

[0083] AsFigure 8 and Figure 9 As shown, in some embodiments of the present invention, a plurality of spoiler ribs 501 may be provided only on the inner side of the second circumferential side wall 510. Specifically, the number of the spoiler ribs 501 may be 1, 2, 3, 6, 7, 8, 12, etc.

[0084] Of course, those skilled in the art may also provide multiple spoiler ribs 501 only on the outer side of the second circumferential side wall 510 , or provide multiple spoiler ribs 501 on both the inner and outer sides of the second circumferential side wall 510 as needed.

[0085] When a plurality of spoiler ribs 501 are respectively provided on the inner and outer sides of the second circumferential side wall 510 , the spoiler ribs 501 on the inner and outer sides may be the same or different.

[0086] like Figure 5 、 Figures 7 to 9 As shown, in some embodiments of the present invention, the second circumferential sidewall 510 of the second filter container 500 is inclined outward from the bottom to the top, so that the liquid 004 rises to the top of the second circumferential sidewall 510 under the action of centrifugal force. In addition, the spoiler rib 501 extends from the bottom end of the second circumferential sidewall 510 to the top end of the second circumferential sidewall 510, so that the spoiler rib 501 adapts to the inclined trend of the second circumferential sidewall 510.

[0087] like Figure 5 and Figure 9 As shown, in some embodiments of the present invention, the second filter container 500 also includes an annular plate 520, which extends from the top of the second circumferential side wall 510 toward the first filter container 400 and abuts against the first filter container 400, so that the liquid 004 in the second filter container 500 can flow back to the first filter container 400 through the first filter hole 411 under the restriction of the annular plate 520.

[0088] like Figure 4 and Figure 5 As shown, in some embodiments of the present invention, the ratio of the height of the second circumferential side wall 510 to the height of the first circumferential side wall 410 is selected from any value between 0.3 and 0.7 to reduce the climbing height of the liquid 004 in the second filter container 500 and reduce the overall height of the centrifugal extractor 001.

[0089] Specifically, the ratio of the height of the second circumferential side wall 510 to the height of the first circumferential side wall 410 may be 0.3, 0.4, 0.5, 0.56, 0.6, 0.7, etc.

[0090] like Figure 5 、 Figures 8 to 10As shown, in some embodiments of the present invention, the second filter container 500 further includes an inner ring portion 530, a top plate 540, and an outer ring portion 550. The bottom end of the inner ring portion 530 is connected to the annular plate 520, the top end of the inner ring portion 530 is connected to the inner edge of the top plate 540, and the outer edge of the top plate 540 is connected to the top end of the outer ring portion 550.

[0091] like Figure 4 and Figure 5 As shown, in the assembled state, the inner ring portion 530 abuts against the first circumferential side wall 410 of the first filter container 400 to increase the connection area between the second filter container 500 and the first filter container 400, thereby improving the stability of the second filter container 500 and the first filter container 400 during rotation.

[0092] Furthermore, the inner annular portion 530 and the first circumferential sidewall 410 of the first filter container 400 may be interference-fitted.

[0093] like Figure 4 and Figure 5 As shown, in the assembled state, the top plate 540 can abut against the top annular edge of the first filter container 400 to prevent other substances such as the extract 002 from entering the second filter container 500 through the gap between the first filter container 400 and the second filter container 500.

[0094] like Figure 4 and Figure 5 As shown, in the assembled state, the outer ring portion 550 abuts against the liquid storage container 200 to prevent foreign matter from entering the liquid storage container 200 and affecting the taste of the final solution.

[0095] like Figures 8 to 9 As shown, in some embodiments of the present invention, the distribution density of the second filter holes 511 at the top of the second circumferential side wall 510 is less than the distribution density at the bottom of the second circumferential side wall 510, so as to prevent the liquid 004 at the top of the second circumferential side wall 510 from being lost quickly and unable to accumulate and flow back to the first filter container 400.

[0096] Furthermore, the distribution density of the second filter holes 511 gradually increases from the top side to the bottom side of the second circumferential sidewall 510 .

[0097] Alternatively, in other embodiments of the present invention, those skilled in the art may also, as needed, distribute all the second filter holes 511 at the bottom of the second circumferential side wall 510 to prevent the liquid 004 at the top of the second circumferential side wall 510 from being lost and unable to accumulate and flow back to the first filter container 400.

[0098] It should be noted that, in the present invention, the top and bottom of the second circumferential side wall 510 are the second circumferential side wall 510 in the axial direction z (such asFigure 4 There is no clear boundary between the two parts. Figure 9 The portion of the second circumferential side wall 510 located above the double-dotted line is divided into the top of the second circumferential side wall 510. Figure 9 The portion of the second circumferential side wall 510 shown in FIG. 5 , which is located below the double-dashed line, is divided into the bottom portion of the second circumferential side wall 510 .

[0099] In other embodiments of the present invention, those skilled in the art may further, as needed, make the diameter of the top second filter holes 511 smaller than the diameter of the bottom second filter holes 511. For example, the diameter of the second filter holes 511 may gradually increase from the top side to the bottom side of the second circumferential sidewall 510.

[0100] Furthermore, in some embodiments of the present invention, the ratio of the pore size of the first filter hole 411 to the pore size of the second filter hole 511 is greater than 1 and less than or equal to 3, so as to ensure that the flow capacity of all the second filter holes 511 on the second filter container 500 is less than the flow capacity of all the first filter holes 411 in the area corresponding to the second circumferential side wall 510 on the first filter container 400, thereby preventing the liquid 004 in the second filter container 500 from being quickly thrown out.

[0101] Furthermore, the ratio of the aperture of the first filter hole 411 to the aperture of the second filter hole 511 is greater than 1 and less than or equal to 2.

[0102] For example, the ratio of the aperture of the first filter hole 411 to the aperture of the second filter hole 511 may be 1.1, 1.5, 1.7, 1.9, 2, 2.5, 3, etc.

[0103] like Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, in some embodiments of the present invention, the pressing block 600 is configured in a ring shape, so that the object to be extracted 002 (as described above) can be put into the first filtering container 400 through the hollow area of ​​the pressing block 600 .

[0104] from Figure 1 、 Figure 2 、 Figure 4 and Figure 5As can be seen, in some embodiments of the present application, the thickness of the pressing block 600 gradually decreases from outside to inside, and the two opposite annular surfaces of the pressing block 600 are both set as funnel surfaces, so that the to-be-extracted material 002 on the top surface of the pressing block 600 slides into the first filter container 400 along the funnel surface under the action of its own gravity. At the same time, by setting the two opposite annular surfaces of the pressing block 600 as funnel surfaces, the user does not need to distinguish the front and back surfaces of the pressing block 600 when installing the pressing block 600, which facilitates the use of the user.

[0105] As Figure 1 , Figure 2 , Figure 4 and Figure 5 indicated, in some embodiments of the present application, the sealing ring 700 can be one, and the sealing ring 700 is sleeved on the outside of the pressing block 600. The axial z height of the sealing ring 700 is greater than or equal to the axial z height of the pressing block 600, so as to ensure that the area of the pressing block 600 abutting with the first filter container 400 through the sealing ring 700 is sufficient, thereby ensuring the stability of the pressing block 600 when rotating.

[0106] Further, in some embodiments of the present application, the sealing ring 700 is interference fit with the pressing block 600, so as to realize the fixation between the sealing ring 700 and the pressing block 600. Of course, the skilled in the art can also fix the sealing ring 700 and the pressing block 600 together according to the needs by using other any feasible way, such as bonding, clamping, clamping, etc.

[0107] As Figures 10 to 12 indicated, in some embodiments of the present application, the sealing ring 700 includes at least two annular portions 710, and the at least two annular portions 710 are sequentially distributed outward along the radial direction r of the sealing ring 700, so as to increase the deformation amount of the sealing ring 700 in the radial direction r, thereby ensuring that the sealing ring 700 can abut with the inner circumferential wall of the first filter container 400.

[0108] Continuing to refer to Figures 10 to 12 , in some embodiments of the present application, the cross section of the sealing ring 700 is set as W-shaped, so as to ensure that the sealing ring 700 has sufficient deformation amount in the radial direction r.

[0109] Of course, the skilled in the art can also set the cross section of the sealing ring 700 as V-shaped, U-shaped, C-shaped or any other feasible shape according to the needs. In addition, the skilled in the art can also set the sealing ring 700 and the pressing block 600 cooperating with the sealing ring 700 as other any feasible form according to the needs.

[0110] For example, in Figure 13In some other embodiments, the centrifugal extractor 001 comprises two sealing rings 700, and the cross section of the sealing ring 700 is arranged in a U shape. The pressing block 600 is provided with an annular groove 610, and the sealing ring 700 is embedded in the annular groove 610 to realize the fixation of the pressing block 600 and the sealing ring 700.

[0111] For example, in some other embodiments of the utility model, the sealing ring 700 is arranged in an L shape and arranged at one end of the pressing block 600 in the axial direction, and the pressing block 600 and the sealing ring 700 are fixed together by means of bonding, welding, screw connection, clamping and the like.

[0112] It should be noted that in the utility model, the material of the sealing ring 700 can be made of rubber or silicone in any embodiment to ensure that the sealing ring 700 has sufficient elasticity. For example, the material of the sealing ring 700 can be nitrile rubber.

[0113] The working principle and use method of the centrifugal extractor 001 of the utility model will be described below with reference to Figure 14 And when the extractant 002 is coffee, the working principle and use method of the centrifugal extractor 001 of the utility model will be described below with reference to Figure 14 The first filter hole 411 is hidden in the figure for the convenience of the person skilled in the art to observe intuitively.

[0114] As Figure 14 As shown, after the extractant 002 is put into the first filter container 400, the motor 310 is started. The motor 310 drives the first filter container 400 and the second filter container 500 to rotate forward, and thus the extractant 002 in the first filter container 400 generates a centrifugal force and is tightly attached to the first circumferential side wall 410 of the first filter container 400.

[0115] Subsequently, the motor 310 is stopped, and the pressing block 600 is put into the first filter container 400 to compress the extractant 002. Then the motor 310 is started. In this process, the first filter container 400 can at least transmit power to the pressing block 600 through the extractant 002, and thus the pressing block 600 drives the sealing ring 700 to rotate, so that the sealing ring 700 deforms outward along the radial direction r, and thus abuts against the inner circumferential wall (i.e. the first circumferential side wall 410) of the first filter container 400.

[0116] Continuing to refer to Figure 14 After the liquid 004 (specifically water) is added to the first filter container 400, the liquid 004 will also generate a centrifugal force with the rotation of the first filter container 400, and pass through the extractant 002, thereby forming a solution in which the target substance 003 in the extractant 002 is dissolved. For the convenience of description, the solution will also be described as the liquid 004 hereinafter.

[0117] Continuing to refer toFigure 14 As the first filter container 400 rotates, the liquid 004 in the first filter container 400 is thrown out of the second filter container 500 through the first filter hole 411. A portion of the liquid 004 in the second filter container 500 is thrown out of the liquid storage container 200 via the second filter hole 511 (as shown by the dashed line with an arrow on the top side in FIG. 4B). Another portion of the liquid 004 in the second filter container 500, under the action of the centrifugal force, climbs along the inclined second circumferential side wall 510 to the annular plate 520, and is pressed back into the first filter container 400 (as shown by the dashed line with an arrow on the top side in FIG. 4B) as the liquid 004 below the annular plate 520 continues to increase, and then enters the next cycle. Figure 14 Figure 14 After the liquid 004 is added into the first filter container 400, even if the liquid 004 is subjected to an upward component force under the action of the centrifugal force, the liquid 004 flows to the top side opening of the first filter container 400. However, the liquid 004 cannot be thrown out of the first filter container 400 due to the obstruction of the sealing ring 700, thereby avoiding the situation of liquid leakage of the centrifugal extractor 001.

[0118] When the centrifugal extractor 001 of the present application completes extraction, the liquid 004 in the liquid storage container 200 is discharged via the liquid discharge passage 201.

[0119] In order to prevent the liquid 004 in the liquid storage container 200 from being discharged during extraction, a person skilled in the art can also configure a plug for the liquid discharge passage 201 according to the needs, so as to close the liquid discharge passage 201 by the plug, and then remove the plug from the liquid discharge passage 201 when it is needed to discharge the liquid.

[0120] In the present application, whether the centrifugal extractor 001 completes extraction of the to-be-extracted material 002 can be determined by counting the running time of the motor 310, or by determining whether the concentration of the liquid 004 in the liquid storage container 200 reaches the value set by the user.

[0121] It should be noted that the above use method is only used to help a person skilled in the art understand the centrifugal extractor 001 of the present application, and does not mean that the centrifugal extractor 001 of the present application only has the above use method.

[0122] Based on the foregoing description, a person skilled in the art can understand that the centrifugal extractor 001 of the present application not only improves the completeness of extraction of the to-be-extracted material 002, but also has a leakage prevention function, and does not leak during work, thereby improving the user experience.

[0123] Based on the foregoing description, a person skilled in the art can understand that the centrifugal extractor 001 of the present application not only improves the completeness of extraction of the to-be-extracted material 002, but also has a leakage prevention function, and does not leak during work, thereby improving the user experience.

[0124] ​Thus far, the technical solutions of the present application have been described in combination with the foregoing embodiments, but it is easily understood by those skilled in the art that the protection scope of the present application is not limited to these specific embodiments. On the premise of not deviating from the technical principles of the present application, those skilled in the art can disassemble and combine the technical solutions in the above-described embodiments, or can make equivalent changes or replacements to the related technical features, and any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present application will fall within the protection scope of the present application.

Claims

1. A centrifugal extractor, characterized in that The centrifugal extractor comprises: a liquid storage container; a driving device fixed opposite to the liquid storage container; a first filter container arranged in the liquid storage container and drivingly connected with the driving device, so that the first filter container extracts the to-be-extracted substance in the first filter container by centrifugation; a pressing block detachably mounted in the first filter container to compress the to-be-extracted substance; at least one sealing ring fixed opposite to the pressing block and deformed radially outward when the pressing block rotates with the first filter container, and thus abutting against the inner circumferential wall of the first filter container to prevent the liquid in the first filter container from being thrown out from between the first filter container and the pressing block.

2. The centrifugal extractor according to claim 1, wherein the sealing ring comprises at least two annular portions sequentially distributed radially outward along the sealing ring.

3. The centrifugal extractor according to claim 2, wherein the cross section of the sealing ring is arranged in a V shape, a U shape or a W shape.

4. The centrifugal extractor according to any one of claims 1 to 3, wherein the sealing ring is sleeved outside the pressing block.

5. The centrifugal extractor according to claim 4, wherein the sealing ring is one, and the axial height of the sealing ring is greater than or equal to the axial height of the pressing block.

6. The centrifugal extractor according to claim 4, wherein the sealing ring is in interference fit with the pressing block.

7. The centrifugal extractor according to claim 4, wherein the pressing block is provided with an annular groove, and the sealing ring is embedded in the annular groove to realize the fixation of the pressing block and the sealing ring.

8. The centrifugal extractor according to any one of claims 1 to 3, wherein the material of the sealing ring is rubber or silicone.

9. The centrifugal extractor according to any one of claims 1 to 3, wherein the pressing block is arranged in an annular shape to fill the liquid into the first filter container through the hollow area of the pressing block.

10. The centrifugal extractor according to any one of claims 1 to 3, wherein the centrifugal extractor further comprises a second filter container arranged between the liquid storage container and the first filter container; the second filter container is drivingly connected with the driving device.

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