Centrifugal extractor

Abstract

The invention belongs to the technical field of beverage extraction equipment, and particularly provides a centrifugal extractor. The centrifugal extractor comprises a liquid storage container, a driving device, a filtering container, a gland and a water injection container. And the driving device and the liquid storage container are relatively fixed. The filtering container is arranged in the liquid storage container and is in driving connection with the driving device so as to extract a to-be-extracted object placed in the filtering container in a centrifugal manner. The gland is fixed relative to the filtering container and comprises a bottom small-diameter section located in the filtering container, and a plurality of water inlet holes are formed in the circumferential wall of the bottom small-diameter section. The water injection container is fixed relative to the liquid storage container and comprises a water injection part inserted into the small-diameter section of the bottom, a plurality of water injection holes are formed in the peripheral wall of the water injection part, so that liquid in the water injection container flows out through the water injection holes, and the forward-rotating gland sucks the liquid flowing out of the water injection holes through the water inlet hole; and the liquid is thrown to an object to be extracted under the action of centrifugal force.

Description

Technical Field

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

[0002] Centrifugal extractor is a commonly used separation equipment, widely used in the beverage extraction industry, for extracting the desired components from a mixture (including liquid). For example, the extraction of coffee and tea. Traditional centrifugal extractors usually include a liquid storage container, a driving device, a filter container and other components. The driving device drives the filter container to rotate, and the centrifugal force is used to separate the different components in the mixture on the inner wall of the filter container.

[0003] However, the traditional water injection method is usually to inject water into the filter container by gravity or simple pumping. This method is difficult to ensure that the water is evenly distributed in the filter container, thereby affecting the extraction efficiency. Summary of the invention

[0004] One object of the present invention is to solve the problem of low extraction efficiency of existing extraction equipment.

[0005] To achieve the above object, the present invention provides a centrifugal extractor, comprising:

[0006] liquid storage container;

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

[0008] A filter container is disposed in the liquid storage container and is drivingly connected to the driving device to extract the substance to be extracted placed in the filter container by centrifugation;

[0009] A gland, fixed relative to the filter container and comprising a bottom small diameter section located in the filter container, wherein a plurality of water inlet holes are arranged on a peripheral wall of the bottom small diameter section;

[0010] The water injection container is fixed relative to the liquid storage container and includes a water injection part inserted into the small diameter section of the bottom. A plurality of water injection holes are arranged on the peripheral wall of the water injection part, so that the liquid in the water injection container can flow out through the water injection holes, and the positively rotating pressure cover can absorb the liquid flowing out of the water injection holes through the water inlet holes, so that the liquid is thrown toward the object to be extracted under the action of centrifugal force.

[0011] Optionally, the water inlet hole is inclined from its inner end to its outer end in the direction of reversal of the pressure cover, so that the water inlet hole forms a force to attract liquid flowing out of the water injection hole during the positive rotation of the pressure cover, thereby sucking the liquid into the water injection hole.

[0012] Optionally, the water injection portion is clearance-matched with the bottom small-diameter section.

[0013] Optionally, a radial spacing d between the water injection portion and the bottom small diameter section is greater than 0 and less than or equal to 3 mm, so that the liquid flowing out of the water injection hole can be absorbed by the water inlet hole in time.

[0014] Optionally, a radial distance d between the water injection portion and the bottom small diameter section is greater than 0.5 mm and less than or equal to 1.5 mm.

[0015] Optionally, the water injection portion defines an annular flow guide channel, and the water injection hole is formed on an outer side wall of the annular flow guide channel.

[0016] Optionally, the annular guide channel includes an inner ring portion, a bottom ring portion and an outer ring portion which are connected in sequence, the inner ring portion is located on the inner side of the outer ring portion, and the bottom ring portion is located on the bottom sides of the inner ring portion and the outer ring portion; the water injection hole is formed on the outer side wall of the outer ring portion; the liquid inlet of the annular guide channel is formed on the top side of the inner ring portion; the annular guide channel guides the liquid in the water injection container to the water injection hole through the communicating vessel principle and / or capillary phenomenon.

[0017] Optionally, the height of the inner ring portion is smaller than the height of the outer ring portion; and / or, the distribution density of the water injection holes at the bottom of the water injection portion is smaller than the distribution density of the water injection holes at the top of the water injection portion; and / or, the distribution density of the water inlet holes at the bottom of the bottom small diameter section is smaller than the distribution density of the water inlet holes at the top of the bottom small diameter section.

[0018] Optionally, the radial width b of the annular guide channel is selected from any value between 0.5 mm and 5 mm.

[0019] Optionally, the centrifugal extraction machine further comprises a spiral pump which is in the shape of an annular barrel as a whole, and the spiral pump is arranged on the radially outer side of the filter container and is drivingly connected to the driving device, so that the spiral pump can transport the liquid thrown out of the filter container into the liquid storage container back into the filter container; and / or, the material to be extracted is coffee powder.

[0020] Based on the foregoing description, those skilled in the art can understand that, in the aforementioned technical solution of the present invention, by installing a gland in the filter container and providing a plurality of water inlet holes on the peripheral wall of the bottom small diameter section of the gland, water can enter the filter container through the water inlet holes. By providing a water injection container fixed relative to the liquid storage container and providing a plurality of water injection holes on the peripheral wall of the water injection part, the liquid in the water injection container can flow out through the water injection holes. By inserting the water injection part of the water injection container into the bottom small diameter section and allowing the positively rotating gland to absorb the liquid flowing out of the water injection hole through the water inlet hole, the liquid is then thrown toward the object to be extracted under the action of centrifugal force, so that the liquid can be evenly thrown toward the object to be extracted, thereby improving the extraction efficiency of the object to be extracted.

[0021] In simple terms, the present invention can make the liquid in the water injection container flow out as evenly as possible in the axial direction through the multiple water injection holes on the peripheral wall of the water injection part; through the multiple water inlet holes on the peripheral wall of the small diameter section at the bottom, the pressure cover can absorb the liquid evenly in the axial direction when rotating with the filter container, and throw the liquid toward the object to be extracted in the filter container, thereby having a relatively excellent extraction efficiency.

[0022] Furthermore, by making the water inlet hole tilt from its inner end to its outer end in the direction of the gland reversal, the bottom small diameter section has the function of a centrifugal pump with the help of the water inlet hole, so that the water inlet hole can form a force to attract the liquid flowing out of the water injection hole during the positive rotation of the gland, and suck the liquid into the water injection hole. At the same time, the positively rotating gland also forms a negative pressure on the outer side of the water injection part, increasing the speed of the liquid outflow from the water injection part.

[0023] Furthermore, by making the water injection part and the bottom small diameter section have a clearance fit, it is avoided that the water injection part and the bottom small diameter section generate noise due to sliding contact, thereby preventing the user from having a negative impact on the user experience.

[0024] Furthermore, since the liquid has surface tension, the liquid will have a certain thickness when it flows. And, when the liquid slowly flows out through the hole, water droplets of a certain size (usually between 0.5 mm and 5 mm) will be formed. Therefore, the present invention ensures that the gland can attract the liquid through the water inlet hole by making the radial spacing d between the water injection part and the bottom small diameter section greater than 0 and less than or equal to 3 mm, and avoids the water flowing out of the water injection hole flowing to the bottom of the water injection container under the action of gravity, resulting in more liquid being thrown to the bottom of the object to be extracted and less liquid being thrown to the top of the object to be extracted, thereby causing uneven extraction of the object to be extracted.

[0025] Furthermore, by defining an annular flow guide channel in the water injection portion and forming the water injection hole on the outer wall of the annular flow guide channel, the flow velocity of the liquid is controlled and the water injection hole can be set at any position on the peripheral wall of the water injection portion.

[0026] Other beneficial effects of the present invention will be described in detail below in conjunction with the accompanying drawings so that those skilled in the art can more clearly understand the improved purposes, features and advantages of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order 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. It should be understood by those skilled in the art that the same reference numerals in different drawings indicate the same or similar components or parts; the drawings of the present invention are not necessarily drawn to scale.

[0028] In the attached figure:

[0029] Figure 1 is a structural exploded view of a centrifugal extractor in some embodiments of the present invention (first axonometric perspective);

[0030] Figure 2 is a structural exploded view of a centrifugal extractor in some embodiments of the present invention (second axonometric perspective);

[0031] Figure 3 is an axonometric view of a centrifugal extractor according to some embodiments of the present invention;

[0032] Figure 4 yes Figure 3 A cross-sectional view of the centrifugal extractor along the AA direction (structural exploded view);

[0033] Figure 5 yes Figures 1 to 3 Cross-sectional view of the middle screw pump along the AA direction;

[0034] Figure 6 yes Figures 1 to 3 A cross-sectional view of the middle connecting member along the AA direction;

[0035] Figure 7 yes Figures 1 to 4 Structural exploded view of the water supply device (first axonometric perspective);

[0036] Figure 8 yes Figures 1 to 4 Exploded view of the structure of the water supply device (second axonometric perspective);

[0037] Fig. 9 yes Figure 3 A cross-sectional view of the water supply device along the AA direction;

[0038] Fig.10 yes Fig. 9 A cross-sectional view of the water supply device along the BB direction (structural exploded view);

[0039] Fig.11 yes Figure 3A cross-sectional view of the centrifugal extractor along the AA direction (assembly drawing);

[0040] Fig.12 yes Fig.11 Enlarged view of the middle F part;

[0041] Fig.13 In some embodiments of the present invention, the annular guide channel is along Figure 3 Schematic diagram of the cross section in the AA direction;

[0042] Fig.14 is a schematic radial cross-sectional view of a bottom small diameter section of a gland in some embodiments of the present invention;

[0043] Fig.15 yes Figure 3 A cross-sectional view of the centrifugal extractor along the AA direction (the body, liquid storage container and water supply device are hidden);

[0044] Fig.16 yes Fig.15 A cross-sectional view of the filter container, the gland and the material to be extracted along the CC direction;

[0045] Fig.17 is an axonometric view of a hot water tank in some other embodiments of the present invention;

[0046] Fig.18 is an axonometric view of a hot water tank in some other embodiments of the present invention;

[0047] Fig.19 It is an axonometric view of a semiconductor refrigeration module in some other embodiments of the present invention.

[0048] Description of reference numerals:

[0049] 001, centrifugal extractor; 002, liquid; 003, substance to be extracted;

[0050] 100, body; 101, top cavity; 102, bottom cavity; 110, knob;

[0051] 200, liquid storage container; 201, liquid discharge channel; 202, avoidance hole; 210, annular rib; 220, plug-in matching structure;

[0052] 300, driving device; 310, motor; 320, connector; 321, driving disk; 322, driven disk;

[0053] 400, filter container; 410, bottom large diameter section; 420, top small diameter section;

[0054] 510, screw pump; 511, pump housing; 5111, drain hole; 512, spiral wing; 520, control valve;

[0055] 600, connecting member; 601, lower cavity; 602, upper cavity;

[0056] 700, gland; 710, bottom small diameter section; 711, water inlet; 720, top large diameter section;

[0057] 800. Water supply device;

[0058] 810, water filling container; 810a, water filling part; 8101, installation cavity; 8102, water filling cavity; 8103, avoidance gap; 8104, annular guide channel; 81041, inner ring; 81042, bottom ring; 81043, outer ring; 811, bottom container; 8111, annular baffle; 81111, plug-in structure; 8112, top column; 8113, water filling hole; 812, middle container; 81201, water leakage hole; 8121, blind pipe; 8122, supporting protrusion; 81221, supporting surface; 81222, stop surface; 813, closing valve; 8131, sealing plug; 8132, sliding rod; 8133, stop structure; 814, top cover; 8141, water tank plug;

[0059] 820, water supply system; 8211, cold water tank; 8212, cold water outlet pipe; 8213, cold water valve; 8214, cold water connecting pipe; 8215, cold water pump; 8221, hot water tank; 8222, hot water outlet pipe; 8223, hot water valve; 8224, hot water connecting pipe; 8225, hot water pump; 823, normal temperature water tank; 8231, water inlet;

[0060] 831. semiconductor refrigeration module; 832. radiator;

[0061] 840. Heating device; 841. Electric heating wire; 842. Electromagnetic coil; 843. Metal structure;

[0062] θ, circumferential direction; z, axial direction; r, radial direction. DETAILED DESCRIPTION

[0063] It should be understood by those skilled in the art that the embodiments described below are only some embodiments of the present invention, rather than all embodiments of the present invention, and these embodiments are intended to explain the technical principles of the present invention, rather than to limit the protection scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should still fall within the protection scope of the present invention.

[0064] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the corresponding devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0065] 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, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. For example, the terms "install", "connect", "connect" and "fix", unless otherwise specifically described, can specifically be any feasible connection form such as bolt connection, screw connection, welding, plug-in, riveting, melting, and clamping.

[0066] like Figures 1 to 4 As shown, in some embodiments of the present invention, the centrifugal extractor 001 includes a body 100, a liquid storage container 200, a driving device 300, a filtering container 400, a screw pump 510, a connecting member 600, a pressure cover 700 and a water supply device 800.

[0067] The body 100 is defined with a top cavity 101 and a bottom cavity 102, wherein the top cavity 101 is used to arrange the liquid storage container 200, the filter container 400, the screw pump 510, the connection member 600, the gland 700 and the water supply device 800, and the bottom cavity 102 is used to arrange the drive device 300. Of course, under the premise that the liquid storage container 200, the drive device 300, the filter container 400, the screw pump 510, the connection member 600, the gland 700 and the water supply device 800 can be installed, those skilled in the art can also set the body 100 to any other feasible shape, such as a hollow barrel-shaped member, as needed.

[0068] In addition, in other embodiments of the present invention, those skilled in the art may also omit the body 100 as needed. That is, on the premise that the liquid storage container 200, the driving device 300, and the filter container 400 can be relatively fixed, those skilled in the art may also omit the body 100 as needed, or set the body 100 and the liquid storage container 200 as a whole.

[0069] The liquid storage container 200 is used to hold the liquid 002 (such as Fig.16 The liquid 002 produced during the operation of the centrifugal extractor 001 is shown in the dotted line.

[0070] The driving device 300 is relatively fixed to the liquid storage container 200 , and can be specifically fixedly connected to the body 100 .

[0071] The filter container 400 is disposed in the liquid storage container 200 and is connected to the driving device 300 so that the filter container 400 can extract the extract 003 (such as Fig.15 and Fig.16 As shown in the figure, centrifugal extraction is performed, and the extracted liquid 002 is thrown out from the filter container 400 into the liquid storage container 200 under the action of centrifugal force.

[0072] The spiral pump 510 is annular barrel-shaped and is arranged on the outer side of the filter container 400 in the radial direction r and is connected to the driving device 300 so that the spiral pump 510 can transport the liquid 002 thrown out of the filter container 400 into the liquid storage container 200 back into the filter container 400.

[0073] In addition, in other embodiments of the present invention, those skilled in the art may also omit the provision of the screw pump 510 as required, and make water or other liquid 002 extract the extract 003 only once. Alternatively, the screw pump 510 may be replaced by any other feasible pumping device, such as a liquid inlet pipe, a water pump and a liquid outlet pipe connected in sequence. The end of the liquid inlet pipe away from the water pump is located at the inner bottom of the liquid storage container 200, and the end of the liquid outlet pipe away from the water pump is located above the filter container 400, so that the liquid 002 thrown out of the filter container 400 into the liquid storage container 200 is transported to the filter container 400 again through the water pump.

[0074] The connecting member 600 is used to guide the liquid 002 returned by the screw pump 510 into the filter container 400. The connecting member 600 is disposed between the filter container 400 and the screw pump 510 in the radial direction r, and can abut against the filter container 400 and the screw pump 510 respectively, specifically, they can be respectively interference fit, so as to increase the structural strength between the filter container 400 and the screw pump 510 through the connecting member 600.

[0075] Those skilled in the art will appreciate that the provision of the connection member 600 can also increase the radial dimension r of the screw pump 510 , thereby improving the pumping capacity of the screw pump 510 .

[0076] In addition, in other embodiments of the present invention, those skilled in the art may also omit the connection member 600 as required, and allow the liquid 002 delivered by the screw pump 510 to flow back into the filter container 400. For example, the screw pump 510 is directly abutted against the filter container 400 in the radial direction r.

[0077] The gland 700 is relatively fixed to the filter container 400 and includes a bottom small diameter section 710 located in the filter container 400. A plurality of water inlet holes 711 (such as Fig.12 The pressure cover 700 is used to shield the filter container 400 to prevent foreign matter from entering the filter container 400, and to allow the liquid 002 entering the centrifugal extractor 001 to be thrown toward the object to be extracted 003 in the filter container 400 through the water inlet hole 711 under the action of centrifugal force.

[0078] The water supply device 800 is used to receive water or other liquid 002 added by the user to the centrifugal extractor 001, and provide the water or other liquid 002 to the pressure cover 700, so that the rotating pressure cover 700 throws the water or other liquid 002 toward the object to be extracted 003 in the filter container 400 through centrifugal force.

[0079] It should be noted that, in the present invention, the extract 003 includes coffee powder and / or tea powder. For example, the extract 003 can be coffee powder or tea powder, or a mixture of coffee powder and tea powder.

[0080] Of course, those skilled in the art can also make the extract 003 include any other feasible powdered substances, such as soybean powder, mung bean powder, cocoa powder, lemon, etc., as needed.

[0081] The centrifugal extractor 001 of the present invention generates a liquid 002 in which a target substance is dissolved during the process of extracting an extract 003 .

[0082] The target substance may be a substance dissolved in water in the object to be extracted 003. The liquid 002 may be a liquid substance of the object to be extracted 003 itself, which may be water, or water in which the target substance is dissolved. The water may be hot water, room temperature water, or cold water in terms of temperature, and may be pure water, tap water, mineral water, or water in which a specific substance (such as sugar, milk, flavor, etc.) is dissolved in terms of composition.

[0083] like Figures 1 to 3 As shown, in some embodiments of the present invention, a knob 110 may be further provided on the body 100 , so as to adjust the rotation speed of the filter container 400 through the knob 110 .

[0084] In addition, in other embodiments of the present invention, those skilled in the art may also omit the setting of the knob 110 as needed, and control the rotation speed of the filter container 400 through other buttons or other devices. Among them, the other buttons may be physical buttons set on the centrifugal extractor 001 or virtual buttons displayed on the display screen of the centrifugal extractor 001. The other devices may be remote controllers compatible with the centrifugal extractor 001, or mobile phones, tablets, and other devices connected to the centrifugal extractor 001 for communication.

[0085] like Figures 1 to 4 As shown, in some embodiments of the present invention, the liquid storage container 200 is placed in the top cavity 101 of the body 100 and can be detachably connected to the body 100, so that the user can take down the liquid storage container 200 for cleaning. Of course, those skilled in the art can also make the liquid storage container 200 fixedly connected to the body 100 as needed.

[0086] When the liquid storage container 200 is detachably connected to the body 100, the liquid storage container 200 and the body 100 are provided with a rotation-stopping structure to prevent the liquid storage container 200 from rotating relative to the body 100. For example, Figure 1 and Figure 3 As shown, a protruding structure (not marked in the figure) is provided on the peripheral wall of the liquid storage container 200, and a slot (not marked in the figure) matching the protruding structure is provided on the fuselage 100, and the protruding structure is inserted into the slot, so as to achieve the circumferential θ fixation of the liquid storage container 200 and the fuselage 100. A hanging ear (not marked in the figure) may also be provided on the side of the liquid storage container 200 away from the protruding structure, and a card slot (not marked in the figure) corresponding to the hanging ear is provided on the fuselage 100, and the hanging ear is embedded in the card slot, so as to further achieve the circumferential θ fixation of the liquid storage container 200 and the fuselage 100.

[0087] When the liquid storage container 200 is fixedly connected to the body 100, the two may be fixedly connected together by means of fixing components, structures or materials such as screws, buckles, and adhesives.

[0088] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments of the present invention, the bottom wall of the liquid storage container 200 is provided with an avoidance hole 202 to avoid the driving device 300, thereby ensuring the driving connection between the driving device 300 and the filtering container 400. The liquid storage container 200 is also provided with an annular rib 210 extending from the bottom wall to the top side to prevent the liquid 002 in the liquid storage container 200 from flowing out of the avoidance hole 202.

[0089] like Figure 1 , Figure 2 and Figure 4As shown, in some embodiments of the present invention, a liquid storage container 200 is provided with a liquid discharge channel 201 to discharge the liquid 002 in the liquid storage container 200 through the liquid discharge channel 201. The liquid storage container 200 may also be provided with a detachable plug (not marked in the figure) to open and block the liquid discharge channel 201 through the plug.

[0090] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments of the present invention, the liquid storage container 200 is further provided with a plug-in matching structure 220 to install and fix the water supply device 800. The water supply device 800 will be described in detail later, and will not be described here.

[0091] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments of the present invention, the driving device 300 includes a motor 310 arranged on the outside of the liquid storage container 200 and a connector 320 arranged on the inside of the liquid storage container 200, the motor 310 is fixedly connected to the body 100 through its casing, the motor 310 is fixedly connected to the connector 320 through its rotating shaft, and the connector 320 is fixedly connected to the filter container 400, so that the motor 310 drives the filter container 400 to rotate through the connector 320.

[0092] like Figure 4 As shown, in some embodiments of the present invention, the connector 320 includes a drive disk 321 and a driven disk 322 plugged together. The drive disk 321 is fixedly connected to the rotating shaft of the motor 310, and the driven disk 322 is fixedly connected to the filter container 400 to facilitate the installation and removal of the filter container 400.

[0093] The fixed connection between the driven disk 322 and the filter container 400 may be any feasible connection method such as screw connection, riveting, welding, bonding, clamping, welding, etc.

[0094] In addition, those skilled in the art may also configure the driven disk 322 and the filter container 400 as an integral component as needed.

[0095] like Figure 4 As shown, in some embodiments of the present invention, the driven disk 322 is provided with a plurality of plug posts (not marked in the figure) extending downward, and the driving disk 321 is provided with a plurality of plug holes (not marked in the figure) opening upward. The plug posts are pluggably inserted into the plug holes to plug the driven disk 322 and the driving disk 321 together.

[0096] like Figure 1 , Figure 2 and Figure 4As shown, in some embodiments of the present invention, the filter container 400 includes a bottom large diameter section 410 and a top small diameter section 420, and the bottom large diameter section 410 is used to accommodate the to-be-extracted 003. A plurality of filter holes (not marked in the figure) are evenly distributed on the peripheral wall of the bottom large diameter section 410, so that the extracted solution can be thrown out of the filter container 400 from the plurality of filter holes. The top small diameter section 420 is used to prevent the to-be-extracted 003 in the bottom large diameter section 410 from being thrown out of the bottom large diameter section 410.

[0097] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments of the present invention, the gland 700 includes a top large diameter section 720 and a bottom small diameter section 710. The top large diameter section 720 matches the top small diameter section 420 of the filter container 400, and is used to prevent the extract 003 in the bottom large diameter section 410 from being thrown out of the bottom large diameter section 410. A plurality of water permeable holes (not marked in the figure) are evenly distributed on the peripheral wall of the bottom small diameter section 710, so that the liquid 002 in the filter container 400 flows out from the water permeable holes or is thrown out to the bottom large diameter section 410 of the filter container 400.

[0098] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments of the present invention, the spiral pump 510 includes a pump housing 511 and a spiral wing 512 disposed in the pump housing 511. The bottom of the pump housing 511 has a water receiving portion (not marked in the figure) extending inwardly along the radial direction r, and the top wall of the water receiving portion is provided with a plurality of through holes, so that the solution thrown out from the filter container 400 enters the pump housing 511 through the through holes. The top of the pump housing 511 has a side wall inclined downward and inward, and the side wall is also provided with a plurality of through holes, so that the liquid 002 in the pump housing 511 flows out from the through holes.

[0099] Further, the pump housing 511 may include two parts, so as to facilitate the installation of the spiral wing 512 into the pump housing 511. For example, the pump housing 511 includes a top ring and a bottom ring in the axial direction z, which are sealed and connected. After the spiral wing 512 is installed in the bottom ring, the top ring is installed on the bottom ring. The sealed connection may be welding, threaded connection, plug-in connection, etc.

[0100] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, in some embodiments of the present invention, a drain hole 5111 is provided at the bottom of the pump housing 511, and a control valve 520 is installed at the drain hole 5111. The control valve 520 is used to control the opening and closing of the drain hole 5111, so that after the extraction is completed, the drain hole 5111 is opened to allow the liquid 002 inside the pump housing 511 and on the top side of the pump housing 511 to flow to the liquid storage container 200 through the drain hole 5111, and finally be discharged from the centrifugal extractor 001 from the drain channel 201 of the liquid storage container 200.

[0101] The control valve 520 may be any feasible valve, such as a solenoid valve, a valve that can be attracted by magnetic force, etc. For example, the control valve 520 includes a valve body mounted on the pump housing 511, a valve core slidably connected to the valve body, and a spring that causes the valve core to close the control valve 520. An electromagnet is provided on the liquid storage container 200. When the electromagnet is energized, the electromagnetic force overcomes the elastic force of the spring and causes the valve core to open the control valve 520.

[0102] Furthermore, in order to align the control valve 520 with the electromagnet, a position sensor may be configured for the centrifugal extractor 001 to detect the relative position of the control valve 520 and the electromagnet through the position sensor. For example, the position sensor may also include a magnet disposed on the pump housing 511 and a Hall sensor mounted on the liquid storage container 200. When the Hall sensor detects the magnet, it is determined that the control valve 520 is aligned with the electromagnet, and the motor 310 is controlled to stop rotating.

[0103] from Figure 5 It can be seen that in some embodiments of the present invention, the spiral wing 512 can be a spiral strip structure.

[0104] like Figure 1 , Figure 2 , Figure 4 and 6 As shown, in some embodiments of the present invention, the connecting member 600 is defined with a lower chamber 601 and an upper chamber 602, and the inner peripheral wall of the lower chamber 601 is adapted to the bottom large diameter section 410 of the filter container 400, and can be specifically radially r abutted, such as interference fit. The inner peripheral wall of the lower chamber 601 is provided with a through hole aligned with the filter hole of the filter container 400, so that the liquid 002 thrown out from the filter container 400 enters the lower chamber 601 of the connecting member 600. The bottom wall of the lower chamber 601 abuts against the water receiving portion of the pump housing 511, and the bottom wall of the lower chamber 601 is provided with a through hole aligned with the through hole on the water receiving portion, so that the lower chamber 601 enters the pump housing 511. The outer peripheral wall of the lower chamber 601 abuts against the inner peripheral wall of the pump housing 511 to increase the connection strength between the filter container 400, the connecting member 600 and the screw pump 510.

[0105] Further, the outer peripheral wall of the upper chamber 602 abuts against the inclined side wall at the top of the pump housing 511, and the outer peripheral wall of the upper chamber 602 is provided with a through hole aligned with the through hole on the inclined side wall, so that the liquid 002 in the pump housing 511 can enter the upper chamber 602. The inner peripheral wall of the upper chamber 602 abuts against the top small diameter section 420 of the filter container 400 to increase the connection strength between the filter container 400, the connecting member 600 and the screw pump 510. The bottom side wall of the upper chamber 602 abuts against the top wall of the bottom large diameter section 410 of the filter container 400, and the bottom side wall of the upper chamber 602 is provided with a through hole aligned with the through hole on the top wall of the bottom large diameter section 410, so that the liquid 002 in the upper chamber 602 can flow back to the filter container 400.

[0106] like Figures 7 to 10 As shown, in some embodiments of the present invention, the water supply device 800 includes a water injection container 810 fixed relatively to the liquid storage container 200 and a water supply system 820 arranged in the water injection container 810, the water supply system 820 is used to supply water to the water injection container 810, and the water injection container 810 is used to transport the received water to the filter container 400.

[0107] In addition, in other embodiments of the present invention, those skilled in the art may also omit one of the liquid storage container 200 and the water supply system 820 as needed.

[0108] like Fig. 9 As shown, in some embodiments of the present invention, the water injection container 810 defines a mounting cavity 8101 and a water injection cavity 8102 located at the bottom of the mounting cavity 8101, and the radial dimension r of the mounting cavity 8101 is larger than the radial dimension r of the water injection cavity 8102. The water supply system 820 is arranged in the mounting cavity 8101.

[0109] like Fig. 9 As shown, in some embodiments of the present invention, the water injection container 810 is relatively fixed to the liquid storage container 200 and includes a water injection portion 810a inserted into the bottom small diameter section 710, and a plurality of water injection holes 8113 are arranged on the peripheral wall of the water injection portion 810a, so that the liquid 002 in the water injection container 810 can flow out through the water injection holes 8113, and the positively rotating pressure cover 700 can absorb the liquid 002 flowing out of the water injection holes 8113 through the water inlet hole 711, and then the liquid 002 is thrown toward the object to be extracted 003 under the action of centrifugal force.

[0110] like Figures 7 to 10As shown, in some embodiments of the present invention, the water injection container 810 includes a bottom container 811 fixed relatively to the liquid storage container 200, a middle container 812 having a water leakage hole 81201, a closing valve 813, and a top cover 814 for closing the middle container 812. The middle container 812 is detachably installed in the bottom container 811. The closing valve 813 closes the water leakage hole 81201 when the middle container 812 is not installed in the bottom container 811, and the closing valve 813 is driven by the bottom container 811 and opens the water leakage hole 81201 when the middle container 812 is installed in the bottom container 811, so that the liquid 002 (which can be water) in the water injection container 810 enters the filtering container 400.

[0111] Continue reading Figures 7 to 10 In some embodiments of the present invention, the installation cavity 8101 and the water injection cavity 8102 are both formed in the middle container 812, and the installation cavity 8101 is shielded by the top cover 814. In addition, the water injection portion 810a corresponds to the water injection cavity 8102, and the water injection hole 8113 is also formed at the bottom of the bottom container 811.

[0112] like Figures 7 to 11 As shown, in some embodiments of the present invention, the top end of the bottom container 811 is provided with an annular baffle 8111 extending outward along the radial direction r, and the bottom side of the annular baffle 8111 is provided with a plug-in structure 81111, which is adapted to the plug-in mating structure 220 on the liquid storage container 200, so that the bottom container 811 is plugged together in the axial direction z through the plug-in structure 81111 and the plug-in mating structure 220, thereby preventing the bottom container 811 from shaking in the radial direction r, and avoiding the bottom container 811 from contacting the components driven by the driving device 300.

[0113] like Figure 1 , Figure 4 , Figures 8 to 11 As shown, in some embodiments of the present invention, the plug structure 81111 is a plug protrusion, and the plug-in matching structure 220 is a slot. Alternatively, those skilled in the art can also set the plug structure 81111 as a slot and the plug-in matching structure 220 as a plug protrusion as needed.

[0114] like Figures 8 to 12 As shown, in some embodiments of the present invention, the bottom container 811 is provided with an upwardly protruding top column 8112 so that the closing valve 813 can be opened by the top column 8112 .

[0115] like Fig. 9 and Fig.10As shown, in some embodiments of the present invention, a blind pipe 8121 extending upward is provided at the bottom of the middle container 812, and a water leakage hole 81201 is formed at the top of the blind pipe 8121. In the assembled state, the top column 8112 is inserted into the blind pipe 8121 and is in clearance fit with the blind pipe 8121.

[0116] like Figures 7 to 9 As shown, in some embodiments of the present invention, the closing valve 813 includes a sealing plug 8131 located on the inner side of the middle container 812 and a sliding rod 8132 passing through the leakage hole 81201. The closing valve 813 closes the leakage hole 81201 through the sealing plug 8131 under the action of its own gravity.

[0117] Continue reading Figures 7 to 9 In some embodiments of the present invention, the slide bar 8132 is slidably matched with the peripheral wall of the water leakage hole 81201. In addition, the cross section of the slide bar 8132 is different from the cross section of the water leakage hole 81201 to ensure that the liquid 002 can flow out of the water leakage hole 81201.

[0118] like Figure 7 and Figure 8 As shown, in some embodiments of the present invention, the cross-section of the sliding rod 8132 is cross-shaped, and the cross-section of the leakage hole 81201 is circular.

[0119] In addition, in other embodiments of the present invention, those skilled in the art may also set the cross-section of the slide bar 8132 to any feasible shape such as a sheet, a triangular prism, a five-pointed star, etc. as needed.

[0120] like Figures 7 to 9 As shown, in some embodiments of the present invention, the closing valve 813 includes a stop structure 8133 arranged on the side of the sliding rod 8132 away from the sealing plug 8131, and the stop structure 8133 interferes with the middle container 812 to prevent the sealing valve from falling out of the leakage hole 81201.

[0121] Among them, one of the stopper structure 8133 and the sealing plug 8131 is made integrally with the slide bar 8132, and the other is fixedly connected to the slide bar 8132. For example, the stopper structure 8133 is made integrally with the slide bar 8132, and the rubber plug is clamped with the slide bar 8132 (which can be similar to the piston and piston rod of a syringe).

[0122] Alternatively, those skilled in the art may also, as needed, configure the stop structure 8133 to be a deformable conical structure so that the stop structure 8133 can pass through the water leakage hole 81201 from the inner side of the middle container 812 to the outer side of the middle container 812 .

[0123] like Fig. 9 and Fig.13As shown, in some embodiments of the present invention, in the assembled state, an annular flow guide channel 8104 is defined between the bottom container 811 and the middle container 812, and the annular flow guide channel 8104 is connected to the water leakage hole 81201. In addition, the annular flow guide channel 8104 is also connected to the water injection hole 8113 formed on the bottom container 811, so that the liquid 002 in the middle container 812 flows out of the bottom container 811 through the water leakage hole 81201, the annular flow guide channel 8104 and the water inlet hole 711. It can be seen from the figure that the water injection hole 8113 is formed on the outer wall of the annular flow guide channel 8104.

[0124] like Fig. 9 and Fig.13 As shown, in some embodiments of the present invention, the annular flow guide channel 8104 includes an inner ring portion 81041, a bottom ring portion 81042 and an outer ring portion 81043 which are connected in sequence, the inner ring portion 81041 is defined by the top column 8112 and the blind tube 8121, the bottom ring portion 81042 is defined by the bottom wall of the bottom container 811 and the bottom wall of the bottom of the middle container 812, and the outer ring portion 81043 is defined by the peripheral wall of the bottom of the bottom container 811 and the peripheral wall of the bottom of the middle container 812. The inner ring portion 81041 is located on the inner side of the outer ring portion 81043. The bottom ring portion 81042 is located at the bottom side of the inner ring portion 81041 and the outer ring portion 81043 , the water injection hole 8113 is formed on the outer side wall of the outer ring portion 81043 , and the liquid inlet (i.e., the leakage hole 81201 ) of the annular guide channel 8104 is formed on the top side of the inner ring portion 81041 .

[0125] In some embodiments of the present invention, the annular guide channel 8104 guides the liquid 002 in the water injection container 810 to the water injection hole 8113 through the communicating vessel principle and / or capillary phenomenon. In this way, the flow rate of the liquid 002 is controlled and the water injection hole 8113 can be set at any position on the peripheral wall of the water injection part 810a.

[0126] like Fig.13 As shown, the radial width b of the annular flow guiding channel 8104 is selected from any value between 0.5 mm and 5 mm. For example, b can be any feasible value such as 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 5 mm, etc.

[0127] like Figures 9 to 13 As shown, in some embodiments of the present invention, the height of the inner ring portion 81041 may be smaller than the height of the outer ring portion 81043 so that the liquid 002 in the middle container 812 can be emptied as much as possible.

[0128] Optionally, the distribution density of the water injection holes 8113 at the bottom of the water injection portion 810a can be smaller than the distribution density of the water injection holes 8113 at the top of the water injection portion 810a, so that the liquid 002 in the outer ring portion 81043 flows out evenly from all the water injection holes 8113, thereby avoiding the liquid 002 in the outer ring portion 81043 from being discharged in large quantities from the bottom of the water injection portion 810a.

[0129] Further optionally, the distribution density of the water inlet holes 711 at the bottom of the bottom small diameter section 710 is smaller than the distribution density of the water inlet holes 711 at the top of the bottom small diameter section 710, so that the bottom small diameter section 710 can uniformly absorb the liquid 002 in the axial direction z through the water inlet holes 711 thereon, and uniformly sprinkle the liquid 002 onto the object to be extracted 003.

[0130] like Fig.14 As shown, in some embodiments of the present invention, the water inlet hole 711 is inclined from its inner end to its outer end in the direction of reversal of the pressure cover 700, so that the water inlet hole 711 forms a force to attract the liquid 002 flowing out of the water injection hole 8113 during the positive rotation of the pressure cover 700, thereby sucking the liquid 002 into the water injection hole 8113.

[0131] Those skilled in the art can understand that by making the water inlet hole 711 tilt from its inner end to its outer end in the direction of the gland 700 reversing, the bottom small diameter section 710 has the function of a centrifugal pump with the help of the water inlet hole 711, so that the water inlet hole 711 can form a force to attract the liquid 002 flowing out of the water injection hole 8113 during the positive rotation of the gland 700, and suck the liquid 002 into the water injection hole 8113. At the same time, the positively rotating gland 700 also forms a negative pressure on the outside of the water injection part 810a, and increases the speed of the liquid 002 flowing out of the water injection part 810a, ensuring the flow rate of the liquid 002.

[0132] Continue reading Fig.14 The water injection portion 810a and the bottom small diameter section 710 are clearance-matched to avoid noise generated by sliding contact between the water injection portion 810a and the bottom small diameter section 710, which affects the user experience.

[0133] Further, the radial distance d between the water injection portion 810a and the bottom small diameter section 710 is greater than 0 and less than or equal to 3 mm, and in particular, the radial distance d between the water injection portion 810a and the bottom small diameter section 710 is greater than 0.5 mm and less than or equal to 1.5 mm, so that the liquid 002 flowing out of the water injection hole 8113 can be promptly absorbed by the water inlet hole 711. The specific value of d can be 0.5 mm, 0.8 mm, 1.2 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, etc.

[0134] It is understood by those skilled in the art that, since the liquid 002 has surface tension, the liquid 002 will have a certain thickness when flowing. Moreover, when the liquid 002 slowly flows out through the hole, water droplets of a certain size (usually between 0.5 mm and 5 mm) will be formed. Therefore, the present invention ensures that the gland 700 can attract the liquid 002 through the water inlet hole 711 by making the radial r spacing d between the water injection portion 810a and the bottom small diameter section 710 greater than 0 and less than or equal to 3 mm, and avoids the water flowing out of the water injection hole 8113 flowing to the bottom of the water injection container 810 under the action of gravity, resulting in more liquid 002 being thrown to the bottom of the object to be extracted 003 and less liquid 002 being thrown to the top of the object to be extracted 003, thereby causing uneven extraction of the object to be extracted 003.

[0135] like Figures 7 to 10 As shown, in some embodiments of the present invention, the water supply system 820 includes a cold water tank 8211, a cold water outlet pipe 8212, a hot water tank 8221 and a hot water outlet pipe 8222. The cold water tank 8211 and the hot water tank 8221 are both arranged on the bottom wall of the installation cavity 8101, the cold water outlet pipe 8212 is connected to the cold water tank 8211 and extends to the top of the water injection cavity 8102, and the hot water outlet pipe 8222 is connected to the hot water tank 8221 and extends to the top of the water injection cavity 8102.

[0136] In the present invention, the parts of the bottom container 811 and the middle container 812 located at the bottom side of the installation cavity 8101 can both be recorded as the bottom wall of the installation cavity 8101 .

[0137] Continue reading Figures 7 to 10 In some embodiments of the present invention, the cold water outlet pipe 8212 is disposed at the bottom side of the cold water tank 8211, and the hot water outlet pipe 8222 is disposed at the bottom side of the hot water tank 8221. The bottom wall of the installation cavity 8101 and the peripheral wall of the water injection cavity 8102 define an escape notch 8103 for escaping the cold water outlet pipe 8212 and the hot water outlet pipe 8222.

[0138] Continue reading Figures 7 to 10 In some embodiments of the present invention, the cold water tank 8211 and the hot water tank 8221 are both arranged in an annular shape and are arranged along the radial direction r. In addition, the centrifugal extractor 001 further includes a semiconductor refrigeration module 831 arranged between the cold water tank 8211 and the hot water tank 8221. The semiconductor refrigeration module 831 is used to cool the cold water tank 8211 and heat the hot water tank 8221, so as to produce hot water while producing cold water, thereby improving the utilization rate of energy. The semiconductor refrigeration module 831 is also arranged in an annular shape.

[0139] In addition, in other embodiments of the present invention, those skilled in the art may also set the cold water tank 8211, the hot water tank 8221 and the semiconductor refrigeration module 831 to any other feasible shape, such as a C shape, as needed.

[0140] Continue reading Figures 7 to 10 In some embodiments of the present invention, the water supply system 820 may further include a cold water valve 8213 connected in series with the cold water outlet pipe 8212 and a hot water valve 8223 connected in series with the hot water outlet pipe 8222, so as to control whether the water in the cold water tank 8211 flows to the water injection chamber 8102 through the cold water valve 8213, and control whether the water in the hot water tank 8221 flows to the water injection chamber 8102 through the hot water valve 8223.

[0141] Continue reading Figures 7 to 10 In some embodiments of the present invention, the water supply system 820 may further include a normal temperature water tank 823 disposed on the top sides of the cold water tank 8211 and the hot water tank 8221, a cold water connecting pipe 8214 disposed between the cold water tank 8211 and the normal temperature water tank 823, and a hot water connecting pipe 8224 disposed between the hot water tank 8221 and the normal temperature water tank 823, so that when the water in the cold water tank 8211 is insufficient, the cold water tank 8211 is replenished with water through the normal temperature water tank 823; and when the water in the hot water tank 8221 is insufficient, the hot water tank 8221 is replenished with water through the normal temperature water tank 823.

[0142] Continue reading Figures 7 to 10 In some embodiments of the present invention, the water supply system 820 may further include a cold water pump 8215 connected in series between the cold water tank 8211 and the normal temperature water tank 823 and a hot water pump 8225 connected in series between the hot water tank 8221 and the normal temperature water tank 823, so that the water in the normal temperature water tank 823 is transported to the cold water tank 8211 by the cold water pump 8215, and the water in the normal temperature water tank 823 is transported to the hot water tank 8221 by the hot water pump 8225. It is understood by those skilled in the art that, based on the provision of the cold water pump 8215 and the hot water cup, the height of the normal temperature water tank 823 can be made not higher than the heights of the cold water tank 8211 and the hot water tank 8221.

[0143] from Figures 7 to 10 It can be seen that the water supply system 820 (except the cold water outlet pipe 8212, the cold water valve 8213, the hot water outlet pipe 8222 and the hot water valve 8223 located in the avoidance gap 8103) is arranged in the middle container 812, and is also located at the top or above the filter container 400 in the axial direction z, specifically in the top small diameter section 420. The avoidance gap 8103 for avoiding the cold water outlet pipe 8212 and the hot water outlet pipe 8222 is provided on the bottom container 811 and the middle container 812.

[0144] Further, although not shown in the figure, temperature sensors may be provided in the cold water tank 8211 and the hot water tank 8221, respectively, to detect whether the temperature in the cold water tank 8211 and the hot water tank 8221 has reached a preset value. The preset value of the cold water tank 8211 may be any feasible value such as 1°C, 2°C, 3°C, 4°C, 8°C, 10°C, etc. The preset value of the hot water tank 8221 may be any feasible value such as 100°C, 92°C, 93°C, 95°C, 88°C, etc. Liquid level sensors may be provided in the cold water tank 8211 and the hot water tank 8221, respectively, to detect whether the water in the cold water tank 8211 and the hot water tank 8221 is sufficient, and when insufficient, the corresponding cold water pump 8215 or the hot water cup is controlled to work and extract water from the normal temperature water tank 823.

[0145] like Figure 7 As shown, in some embodiments of the present invention, a plurality of support protrusions 8122 are provided on the peripheral wall of the installation cavity 8101. The support protrusions 8122 are specifically provided on the inner peripheral surface of the middle container 812. Further, the support protrusions 8122 include a sunken axial z support surface 81221 to support the normal temperature water tank 823 in the axial direction z. The support protrusions 8122 may also include a radial r stop surface 81222 located on the top side of the support surface 81221 to fix the normal temperature water tank 823 in the radial direction r.

[0146] It is understood by those skilled in the art that the provision of the support protrusion 8122 can prevent the shaking of the normal temperature water tank 823. On this basis, those skilled in the art can also provide a sink groove at the circumferential θ edge of the bottom wall of the normal temperature water tank 823 as needed, so that the support protrusion 8122 is embedded in the sink groove, so as to further improve the stability of the normal temperature water tank 823.

[0147] like Figures 7 to 10 As shown, in some embodiments of the present invention, a water inlet 8231 is provided on the top side of the normal temperature water tank 823, so that the user can add water to the normal temperature water tank 823 through the water inlet 8231. The top cover 814 is provided with a downwardly protruding water tank plug 8141, and the water tank plug 8141 is used to close the water inlet 8231. The top cover 814 will close the water inlet 8231 while shielding the middle container 812.

[0148] like Fig. 9 , Fig.11 and Fig.12As shown, in the assembled state, the filter container 400 is fixedly connected to the driven disk 322 of the driving device 300. For example, welding, riveting, clamping, threaded connection, etc. The filter container 400, the connecting member 600 and the screw pump 510 are sequentially arranged and relatively fixed in the radial direction r, for example, the two adjacent to each other in the filter container 400, the connecting member 600 and the screw pump 510 are interference fit. The gland 700 is detachably inserted into the filter container 400, and can be a micro-interference fit. The bottom container 811 is detachably installed on the liquid storage container 200 through the plug-in structure 81111 and the plug-in matching structure 220, and a part of the filter container 400 is embedded in the gland 700, and is also gap-matched with the gland 700 and the filter container 400. The middle container 812 and the water supply system 820 therein are embedded in the bottom container 811. The top cover 814 is detachably mounted on the middle container 812 , and thereby closes the water inlet 8231 of the normal temperature water tank 823 .

[0149] Furthermore, although not shown in the figures, in the present invention, the electrical components of the water supply system 820 and the semiconductor refrigeration module 831 can be connected to the power supply or power cord on the fuselage 100 via a power cord. Specifically, corresponding threading holes can be set on the water filling container 810 and / or the liquid storage container 200.

[0150] Refer to the following Fig. 9 , Figures 11 to 16 The working principle of the centrifugal extractor 001 in some embodiments of the present invention is briefly described.

[0151] When cold extraction is required, the pressure cap 700 and the water supply device 800 are first removed, and the extract 003 is loaded into the filter container 400. Then the motor 310 is pre-operated for a period of time (e.g., 5S, 10S, 15S, etc.), then stopped, and the pressure cap 700 and the water supply device 800 are installed.

[0152] Then, the top cover 814 is opened, and enough water is added to the normal temperature water tank 823, and then the top cover 814 is closed. The cold water pump 8215 and the hot water pump 8225 are started to inject the water in the normal temperature water tank 823 into the cold water tank 8211 and the hot water tank 8221 respectively. The semiconductor refrigeration module 831 is powered on to cool the cold water in the cold water tank 8211 and heat the hot water in the hot water tank 8221.

[0153] When the water temperature in the cold water tank 8211 drops to a preset value, the semiconductor refrigeration module 831 can be powered off and the cold water valve 8213 can be opened to allow the cold water in the cold water tank 8211 to be discharged to the water injection part 810a in the middle container 812, and flow out of the bottom container 811 through the leakage hole 81201, the annular guide channel 8104 and the water injection hole 8113.

[0154] At the same time, the motor 310 is controlled to rotate forward, thereby driving the filter container 400, the gland 700, the screw pump 510 and the connecting member 600 to rotate together. The rotating gland 700 has the function of a centrifugal pump by virtue of its inclined water inlet hole 711, so that the water inlet hole 711 forms a force to attract the cold water (liquid 002) flowing out of the water injection hole 8113, sucking the cold water into the water injection hole 8113, and then throwing the cold water toward the object to be extracted 003 along the radial direction r.

[0155] Under the action of centrifugal force and gravity, the cold water passes through the object to be extracted 003 and forms a solution (liquid 002), and then flows to the screw pump 510 through the lower chamber 601 of the connecting member 600. The rotating screw pump 510 transports the solution to the upper chamber 602 of the connecting member 600, and then enters the filter container 400 again to extract the object to be extracted 003 in the filter container 400 again.

[0156] When the extraction is finished, the motor 310 stops rotating, the control valve 520 is opened, and the user opens the plug at the drainage channel 201 to allow the final solution to be discharged through the drainage channel 201 .

[0157] In the present invention, whether the centrifugal extractor 001 has completed the extraction of the extract 003 can be determined by counting the running time of the motor 310, or by determining whether the solubility of the solution in the liquid storage container 200 has reached the value set by the user.

[0158] When hot extraction is required, except that the hot water in the hot water tank 8221 is provided to the water injection chamber 8102, the remaining steps are basically the same as those of cold extraction.

[0159] It should be noted that the above-mentioned method of use is only used to help those skilled in the art understand the centrifugal extractor 001 of the present invention, and does not mean that the centrifugal extractor 001 of the present invention can only have the above-mentioned method of use.

[0160] Based on the foregoing description, those skilled in the art can understand that the centrifugal extractor 001 of the present invention not only has the functions of cold extraction and hot extraction, but also has a better extraction effect.

[0161] In addition, in other embodiments of the present invention, those skilled in the art may also omit the components related to cold extraction or hot extraction in the centrifugal extractor 001 as needed. Figures 17 to 19 Give an example.

[0162] like Fig.17As shown, in some other embodiments of the present invention, the components related to cold extraction in the centrifugal extractor 001 are omitted, and the centrifugal extractor 001 includes a heating device 840 for heating the water in the hot water tank 8221. In addition, the heating device 840 is an electric heating wire 841 arranged outside or inside the hot water tank 8221. In addition, the heating device 840 may also include a portion arranged in the upper cavity 602 of the connecting member 600 (such as Figure 6 As shown), the liquid 002 in the upper chamber 602 is heated to ensure the hot-cooking effect. The heating device 840 can be an electric heating wire 841 or a Fig.18 The electromagnetic coil 842 shown in .

[0163] like Fig.18 As shown, in some other embodiments of the present invention, the heating device 840 is an electromagnetic coil 842 disposed outside the hot water tank 8221. In addition, a metal structure 843 is disposed on the hot water tank 8221 to be heated by the electromagnetic coil 842.

[0164] like Fig.19 As shown, in other embodiments of the present invention, the components related to heat extraction in the centrifugal extractor 001 are omitted, and the centrifugal extractor 001 includes a radiator 832 to absorb the heat generated when the semiconductor refrigeration module 831 cools the cold water tank 8211. The radiator 832 is located on the outer side of the semiconductor refrigeration module 831 in the radial direction r, and the cold water tank 8211 is located on the inner side of the semiconductor refrigeration module 831 in the radial direction r. Fig.19 As can be seen in the figure, the radiator 832 can be a plurality of fins arranged on the cold water tank 8211.

[0165] In addition, in other embodiments of the present invention, those skilled in the art may also omit the normal temperature water tank 823, cold water connecting pipe 8214, cold water pump 8215, hot water connecting pipe 8224 and hot water pump 8225 described in any of the above embodiments as needed. Alternatively, omit the entire water supply system 820 described in any of the above embodiments. Then, the user fills the middle container 812 with water or other liquid 002.

[0166] In addition, in other embodiments of the present invention, those skilled in the art may also configure the bottom container 811 and the middle container 812 as an inseparable component as needed.

[0167] So far, the technical solution of the present invention has been described in combination with the above multiple embodiments, but it is easy for those skilled in the art to understand that the protection scope 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 split and combine the technical solutions in the above embodiments, and can also make equivalent changes or replacements to the relevant technical features. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present invention will fall within the protection scope of the present invention.

[0168] Finally, it should be noted that in the present invention, the term "communication" means fluid communication, so as to allow fluid (such as air, liquid) to flow between two connected objects. And the "communication" can be to allow the fluid to flow between the two connected objects without leakage, or to allow the fluid to flow between the two connected objects with a little leakage.

Claims

1. A centrifugal extractor, comprising: liquid storage container; A driving device, fixed relatively to the liquid storage container; A filter container is disposed in the liquid storage container and is drivingly connected to the driving device to extract the substance to be extracted placed in the filter container by centrifugation; A gland, fixed relative to the filter container and comprising a bottom small diameter section located in the filter container, wherein a plurality of water inlet holes are arranged on a peripheral wall of the bottom small diameter section; The water injection container is fixed relative to the liquid storage container and includes a water injection part inserted into the small diameter section of the bottom. A plurality of water injection holes are arranged on the peripheral wall of the water injection part, so that the liquid in the water injection container can flow out through the water injection holes, and the positively rotating pressure cover can absorb the liquid flowing out of the water injection holes through the water inlet holes, so that the liquid is thrown toward the object to be extracted under the action of centrifugal force.

2. The centrifugal extractor according to claim 1, wherein: The water inlet hole is inclined from its inner end to its outer end in the direction of the reversal of the gland, so that the water inlet hole forms a force to attract the liquid flowing out of the water injection hole during the positive rotation of the gland, thereby sucking the liquid into the water injection hole.

3. The centrifugal extractor according to claim 1 or 2, wherein: The water injection portion is clearance-matched with the bottom small-diameter section.

4. The centrifugal extractor according to claim 3, wherein: A radial distance d between the water injection portion and the bottom small diameter section is greater than 0 and less than or equal to 3 mm, so that the liquid flowing out of the water injection hole can be absorbed by the water inlet hole in time.

5. The centrifugal extractor according to claim 4, wherein: A radial distance d between the water injection portion and the bottom small-diameter section is greater than 0.5 mm and less than or equal to 1.5 mm.

6. The centrifugal extractor according to claim 1, wherein: The water injection portion defines an annular flow guiding channel, and the water injection hole is formed on the outer side wall of the annular flow guiding channel.

7. The centrifugal extractor according to claim 6, wherein: The annular flow guide channel comprises an inner ring portion, a bottom ring portion and an outer ring portion which are connected in sequence, the inner ring portion is located on the inner side of the outer ring portion, and the bottom ring portion is located on the bottom side of the inner ring portion and the outer ring portion; The water injection hole is formed on the outer side wall of the outer ring portion; The liquid inlet of the annular guide channel is formed on the top side of the inner ring portion; The annular flow guide channel guides the liquid in the water injection container to the water injection hole through the communicating vessel principle and / or capillary phenomenon.

8. The centrifugal extractor according to claim 7, wherein: The height of the inner ring portion is smaller than the height of the outer ring portion; and / or, The distribution density of the water injection holes at the bottom of the water injection portion is less than the distribution density of the water injection holes at the top of the water injection portion; and / or, The distribution density of the water inlet holes at the bottom of the bottom small diameter section is smaller than the distribution density of the water inlet holes at the top of the bottom small diameter section.

9. The centrifugal extractor according to claim 6, wherein: The radial width b of the annular guide channel is selected from any value between 0.5 mm and 5 mm.

10. The centrifugal extractor according to claim 1, wherein: The centrifugal extractor further comprises a spiral pump in the shape of an annular barrel as a whole, which is arranged on the radially outer side of the filter container and is drivingly connected to the driving device so that the spiral pump can transport the liquid thrown out of the filter container into the liquid storage container and transport it back to the filter container; and / or, The substance to be extracted is coffee powder.

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