Centrifugal extractor with low noise

Abstract

The utility model belongs to the technical field of beverage extraction equipment, and particularly provides a centrifugal extractor with low noise. 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 machine body, a liquid storage container arranged on the machine body or the liquid storage container, a motor arranged on the machine body, a connecting shaft in driving connection with the motor, a filtering device arranged in the liquid storage container and at least one bearing arranged between the connecting shaft and the filtering container. Wherein the filtering device and the connecting shaft are fixedly connected or integrally manufactured, so that the filtering device extracts an object to be extracted in the filtering device in a centrifugal mode. The bearing is used for supporting the connecting shaft to prevent the connecting shaft from eccentrically rotating. According to the centrifugal extractor, the technical problems are solved, the dynamic balance of the filtering device is improved, and the operation noise of the centrifugal extractor is reduced.

Description

Technical Field

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

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

[0003] The principle of the above extraction method is to make the target substance in the coffee waiting to be extracted dissolve and diffuse into the solution by molecular diffusion. It is not only time-consuming, but also causes the extract to still retain a large amount of target substance after extraction, resulting in incomplete extraction and even affecting the taste of the final drinking solution. Utility Model Content

[0004] One purpose of the present invention is to solve the problem that the existing extraction equipment has poor extraction integrity.

[0005] Another object of the present invention is to reduce the operating noise of the centrifugal extractor.

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

[0007] body;

[0008] a liquid storage container, mounted on the fuselage;

[0009] a motor, mounted on the fuselage or the liquid storage container;

[0010] A connecting shaft, drivingly connected to the motor;

[0011] A filtering device is disposed in the liquid storage container and is fixedly connected to or integrally formed with the connecting shaft, so that the filtering device can extract the substance to be extracted therein by centrifugation;

[0012] At least one bearing is provided between the connecting shaft and the liquid storage container to support the connecting shaft and prevent the connecting shaft from rotating eccentrically.

[0013] Optionally, the liquid storage container is provided with a fixing seat, and a receiving cavity is defined in the fixing seat, and the receiving cavity is used to receive at least a portion of the connecting shaft and to install the bearing.

[0014] Optionally, the fixing seat is clearance-matched with the filter device in the axial direction to prevent the fixing seat from hindering the filter device from rotating.

[0015] Optionally, one of at least one of the bearings is located at the top end of the fixing seat so as to be as close as possible to the filtering device.

[0016] Optionally, the centrifugal extractor comprises two bearings, which are spaced apart from each other; and / or, the bearings are magnetic bearings.

[0017] Optionally, the motor is mounted on the body, and the accommodating cavity passes through the liquid storage container in the axial direction, so that the connecting shaft is connected to the rotating shaft of the motor.

[0018] Optionally, the centrifugal extractor further includes a connecting shaft provided between the connecting shaft and the rotating shaft of the motor, the connecting shaft being circumferentially fixedly connected to the connecting shaft, and the connecting shaft being circumferentially fixedly connected to the rotating shaft of the motor.

[0019] Optionally, one of the bottom end of the connecting shaft and the top end of the connecting shaft is provided with a slot, and the other is provided with an insertion protrusion, so that the connecting shaft and the connecting shaft can be detachably plugged together through the slot and the insertion protrusion; the liquid storage container is detachably connected to the body; and / or, the bottom end of the connecting shaft is provided with a sleeve, so that the connecting shaft can be sleeved with the rotating shaft of the motor through the sleeve.

[0020] Optionally, at least one radial hole is provided on the circumferential surface of the top of the connecting shaft; an upwardly raised boss is provided in the middle of the bottom wall of the filtering device, and at least one fixing hole adapted to the radial hole is provided on the circumferential surface of the boss, so that the filtering device and the connecting shaft can be fixed together by passing a threaded member or a pin shaft through the fixing hole and inserted into the radial hole.

[0021] Optionally, the filtering device includes a coaxial inner filtering container and an outer filtering container; the boss includes a first boss that rises upward from the middle of the bottom wall of the inner filtering container and a second boss that rises upward from the middle of the bottom wall of the outer filtering container; the fixing hole includes a first fixing hole arranged on the first boss and a second fixing hole arranged on the second boss.

[0022] Based on the foregoing description, those skilled in the art will appreciate that, in the aforementioned technical solution of the present invention, the motor-driven filter device can centrifugally extract the material to be extracted placed therein by rotating, and eject the extracted target substance from the filter device. Centrifugal extraction makes it easier to eject the target substance from the material to be extracted, thus improving the completeness of the extraction of the material to be extracted by the centrifugal extractor of the present invention.

[0023] Furthermore, the present invention connects the motor and filter device via a connecting shaft, and at least one bearing is provided between the connecting shaft and the liquid storage container to support the connecting shaft, effectively preventing eccentric rotation of the connecting shaft and the filter device. In other words, due to the placement of the bearing, if the extractant within the filter device is unevenly distributed, and eccentricity occurs, the bearing can offset the eccentric force of the filter device's rotation, thereby correcting the deviation. Therefore, the present invention effectively avoids vibration caused by eccentricity of components such as the filter device and the connecting shaft, thereby reducing noise during operation of the centrifugal extractor.

[0024] Furthermore, by arranging a fixing seat in the liquid storage container and defining a receiving cavity in the fixing seat to accommodate at least a portion of the connecting shaft and to install the bearing, the connecting shaft and the bearing can be hidden, thereby optimizing the appearance of the centrifugal extractor.

[0025] Furthermore, by making the fixing seat and the filter device have a clearance fit in the axial direction, the fixing seat and the filter device are made sufficiently close to each other, and the fixing seat is prevented from hindering the rotation of the filter device.

[0026] Furthermore, by locating a bearing at the top of the fixed seat, it is as close to the filter device as possible, which helps to reduce the eccentricity of the filter device when it rotates, avoids the filter device from bringing a large eccentric torque to the connecting shaft when it is eccentric, and further reduces the noise during the operation of the centrifugal extractor.

[0027] Furthermore, by configuring the bearing as a magnetic suspension bearing, the friction force and friction noise inside the bearing are reduced, further reducing the noise during operation of the centrifugal extractor.

[0028] Furthermore, by installing the motor on the body, the weight of the liquid storage container is reduced.

[0029] Furthermore, by providing a connecting shaft between the connecting shaft and the rotating shaft of the motor, the relative distance between the connecting shaft and the rotating shaft of the motor can be relatively far. On this basis, by making the liquid storage container detachable from the body, the connecting shaft and the connecting shaft are detachably connected, so that the liquid storage container, the filter device, the connecting shaft and the bearing can be removed together.

[0030] 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

[0031] 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. In the drawings:

[0032] Figure 1 is an exploded structural diagram of a centrifugal extractor in some embodiments of the present invention (first axonometric perspective);

[0033] Figure 2 is an exploded structural diagram of a centrifugal extractor in some embodiments of the present invention (second axonometric perspective);

[0034] Figure 3 is an axonometric view of a centrifugal extractor in some embodiments of the present invention;

[0035] Figure 4 yes Figure 3 Cross-sectional view of the centrifugal extractor along the AA direction;

[0036] Figure 5 yes Figure 4 Enlarged view of the middle F part;

[0037] Figure 6 yes Figure 3 Cross-sectional view of the middle fuselage along the AA direction;

[0038] Figure 7 yes Figures 1 to 4 Exploded view of the motor and connecting shaft (first axonometric perspective);

[0039] Figure 8 yes Figures 1 to 4 Exploded view of the motor and connecting shaft (second axonometric perspective);

[0040] Figure 9 yes Figure 8 Cross-sectional view of the motor and connecting shaft along the BB;

[0041] Figure 10 yes Figures 1 to 4 Axonometric drawing of the inner filter container;

[0042] Figure 11 yes Figure 10 Cross-sectional view of the inner filter container along the CC direction;

[0043] Figure 12 yes Figures 1 to 4 Axonometric drawing of Chinese and foreign filtration vessels;

[0044] Figure 13 yes Figure 12 Cross-sectional view of the inner and outer filter containers along the DD direction;

[0045] Figure 14 Schematic diagram of the centrifugal extraction effect of the filtration device in some embodiments of the present invention.

[0046] Description of reference numerals:

[0047] 001, centrifugal extractor; 002, material to be extracted; 003, target substance; 004, liquid;

[0048] 100, body; 101, top cavity; 102, bottom cavity; 110, knob;

[0049] 200, liquid storage container; 201, liquid discharge channel; 210, fixing seat; 211, accommodating chamber;

[0050] 310, motor; 311, shaft;

[0051] 320, connecting shaft; 321, slot; 322, radial hole;

[0052] 330, connecting shaft; 331, inserting protrusion; 332, shaft sleeve;

[0053] 400, filter device; 401, boss; 4011, first boss; 4012, second boss; 402, fixing hole; 4021, first fixing hole; 4022, second fixing hole; 410, inner filter container; 411, closing structure; 420, outer filter container; 4201, sink; 421, filter portion; 422, stopper; 423, apron portion; 424, neck portion;

[0054] 500, bearings;

[0055] 600, balance ring;

[0056] 700, briquetting;

[0057] θ, circumferential direction; z, axial direction; r, radial direction. DETAILED DESCRIPTION

[0058] Those skilled in the art should understand that the embodiments described below are only a portion of the embodiments of the present invention, rather than all of the embodiments of the present invention. These embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0059] 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 the convenience of description and does not indicate or imply that the corresponding device or element 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.

[0060] 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.

[0061] 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 a body 100, a liquid storage container 200, a motor 310, a connecting shaft 320, a filtering device 400, at least one bearing 500, an optional balance ring 600 and an optional pressure block 700.

[0062] 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 and the filter device 400, while the bottom cavity 102 is used to accommodate the motor 310. Of course, as long as the liquid storage container 200, the motor 310, and the filter device 400 can be installed, those skilled in the art may also configure the housing 100 to any other feasible shape, such as a hollow barrel-shaped member, as needed.

[0063] The liquid storage container 200 is used to hold the liquid 004 (such as Figure 14 as shown), or the liquid 004 produced during the operation of the centrifugal extractor 001.

[0064] The motor 310 is mounted on the body 100 and disposed within the bottom cavity 102. The motor 310 and the body 100 can be secured together using any feasible method, such as screws, bolts, clamping, or bonding. Alternatively, those skilled in the art can also mount the motor 310 on the liquid storage container 200 as needed.

[0065] The connecting shaft 320 is drivingly connected to the motor 310 .

[0066] The filter device 400 is disposed in the liquid storage container 200 and is fixedly connected to the connecting shaft 320 or is integrally formed so that the filter device 400 can extract the extract 002 (e.g., Figure 14 As shown) for centrifugal extraction, and the extracted target substance 003 (as shown Figure 14 The small triangle shown in the figure is thrown out from the filter device 400 into the liquid storage container 200 under the action of centrifugal force.

[0067] The bearing 500 is disposed between the connecting shaft 320 and the liquid storage container 200 to support the connecting shaft 320 and prevent the connecting shaft 320 and the filter device 400 from rotating eccentrically.

[0068] The balance ring 600 is fixed relative to the filter device 400 to improve the dynamic balance of the filter device 400, thereby reducing the operating noise of the centrifugal extractor 001. In addition, those skilled in the art may also omit the setting of the balance ring 600 as needed.

[0069] The pressing block 700 is detachably mounted in the inner filter container 410 to compress the material to be extracted 002 in the inner filter container 410 to prevent the material to be extracted 002 from being thrown out of the inner filter container 410. Furthermore, those skilled in the art may omit the pressing block 700 or configure the pressing block 700 as a cover, a stopper, or other component as needed.

[0070] Those skilled in the art will appreciate that the filter device 400, driven by the motor 310, can perform centrifugal extraction on the material to be extracted 002 placed therein by rotating, and eject the extracted target substance 003 from the filter device 400. During centrifugal extraction, the target substance 003 on the material to be extracted 002 is more easily ejected from the filter device 400. Therefore, the centrifugal extractor 001 of the present invention improves the completeness of the extraction of the material to be extracted 002.

[0071] Furthermore, the present invention connects the motor 310 and the filter device 400 via a connecting shaft 320. At least one bearing 500 is provided between the connecting shaft 320 and the liquid storage container 200 to support the connecting shaft 320, effectively preventing eccentric rotation of the connecting shaft 320 and the filter device 400. In other words, due to the provision of the bearing 500, if the extract 002 within the filter device 400 is unevenly distributed, the bearing 500 can offset the eccentric force of the filter device 400 during rotation, thereby correcting the deviation. Therefore, the present invention effectively avoids vibration caused by eccentricity of components such as the filter device 400 and the connecting shaft 320, thereby reducing noise during operation of the centrifugal extractor 001.

[0072] It should be noted that, in the present invention, the object to be extracted 002 includes coffee powder and / or tea powder. For example, the object to be extracted 002 can be coffee powder or tea powder, or a mixture of coffee powder and tea powder.

[0073] Of course, those skilled in the art may also make the extract 002 include any other feasible powdered substances as needed, such as soybean powder, mung bean powder, cocoa powder, lemon, etc.

[0074] The centrifugal extractor 001 of the present invention produces a target substance 003 (such as Figure 14 Liquid 004 (shown in the small triangle).

[0075] Target substance 003 can be a water-soluble substance in the object to be extracted 002. Liquid 004 is the liquid substance of the object to be extracted 002 itself, or it can be water. The water can be hot, room temperature, or cold water, and its composition can be pure water, tap water, mineral water, or water dissolved with a specific substance (e.g., sugar, milk, flavoring, etc.).

[0076] 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 to adjust the rotation speed of the motor 310 through the knob 110 .

[0077] Furthermore, in other embodiments of the present invention, those skilled in the art may, as needed, omit the knob 110 and control the speed of the filter device 400 using other buttons or other devices. These other buttons may be physical buttons on the centrifugal extractor 001 or virtual buttons displayed on a display screen on the centrifugal extractor 001. These other devices may be a remote control compatible with the centrifugal extractor 001, or a mobile phone, tablet, or other device connected to the centrifugal extractor 001.

[0078] like Figures 1 to 4As 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 to facilitate the user to remove and clean the liquid storage container 200. Of course, those skilled in the art can also make the liquid storage container 200 fixedly connected to the body 100 as needed.

[0079] 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 2 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 321 (not marked in the figure) matching the protruding structure is provided on the body 100. The protruding structure is inserted into the slot 321, thereby achieving the circumferential θ (as shown in FIG. Figure 4 The liquid storage container 200 may also be provided with a lug (not labeled in the figure) on the side away from the protruding structure. The body 100 is provided with a slot (not labeled in the figure) corresponding to the lug, and the lug is inserted into the slot to further achieve circumferential θ fixation of the liquid storage container 200 and the body 100.

[0080] When the liquid storage container 200 is fixedly connected to the body 100, the two can be fixedly connected together by fixing components, structures or materials such as screws, buckles, and glue.

[0081] like Figure 1 、 Figures 4 to 6 As shown, in some embodiments of the present invention, the liquid storage container 200 is provided with a fixing seat 210 , and the fixing seat 210 defines an accommodating cavity 211 , which is used to accommodate at least a portion of the connecting shaft 320 and to install the bearing 500 .

[0082] like Figures 4 to 6 As shown, in some embodiments of the present invention, the accommodating cavity 211 passes through the liquid storage container 200 in the axial direction, so that the connecting shaft 320 is connected to the rotating shaft 311 of the motor 310 .

[0083] In other embodiments of the present invention, if the motor 310 is installed on the liquid storage container 200 , the accommodating cavity 211 may not penetrate the liquid storage container 200 .

[0084] from Figure 4 It can also be seen that in some embodiments of the present invention, the fixing seat 210 is clearance-matched with the filter device 400 in the axial direction z, so that the fixing seat 210 and the filter device 400 are sufficiently close to each other and the fixing seat 210 is prevented from hindering the rotation of the filter device 400.

[0085] Furthermore, those skilled in the art may also, as needed, place the fixing base 210 in sliding contact with the filter device 400 to achieve a seal through the sliding contact between the two, thereby preventing the solution in the liquid storage container 200 from leaking out of the gap therebetween. Alternatively, those skilled in the art may also, as needed, provide a sealing ring on one of the fixing base 210 and the filter device 400, and place the other in sliding contact with the sealing ring in a sealed manner.

[0086] like Figure 4 and Figure 5 As shown, in some embodiments of the present invention, a bearing 500 is located at the top of the fixed seat 210 so as to be as close to the filter device 400 as possible, thereby helping to reduce the eccentricity of the filter device 400 when it rotates, thereby avoiding the filter device 400 from causing a large eccentric torque to the connecting shaft 320 when it is eccentric, and further reducing the noise during the operation of the centrifugal extractor 001.

[0087] Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, in some embodiments of the present invention, the centrifugal extractor 001 includes two bearings 500, and the two bearings 500 are spaced apart to increase the radial support area of ​​the connecting shaft 320 and disperse the force on each bearing 500. In addition, those skilled in the art may also set the number of bearings 500 to any other feasible number, such as one, three, or four, as needed.

[0088] Furthermore, in the present invention, the bearing 500 may be a magnetic bearing 500 to reduce the friction and friction noise inside the bearing 500 , thereby further reducing the noise during operation of the centrifugal extractor 001 .

[0089] like Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figures 7 to 9 As shown, in some embodiments of the present invention, the centrifugal extractor 001 may further include a connecting shaft 330 arranged between the connecting shaft 320 and the rotating shaft 311 of the motor 310, the connecting shaft 330 being circumferentially fixedly connected to the connecting shaft 320, and the connecting shaft 330 being circumferentially fixedly connected to the rotating shaft 311 of the motor 310.

[0090] like Figures 7 to 9 As shown, in some embodiments of the present invention, one of the bottom end of the connecting shaft 320 and the top end of the connecting shaft 330 is provided with a slot 321, and the other is provided with an insertion protrusion 331, so that the connecting shaft 320 and the connecting shaft 330 can be detachably plugged together through the slot 321 and the insertion protrusion 331.

[0091] The cross section of the protrusion 331 and the slot 321 may be a sheet-like structure (eg Figures 7 to 9 As shown), any feasible structure such as triangular structure, rectangular structure, elliptical structure, etc.

[0092] Those skilled in the art will appreciate that by providing the connecting shaft 330 between the connecting shaft 320 and the rotating shaft 311 of the motor 310, the relative distance between the connecting shaft 320 and the rotating shaft 311 of the motor 310 can be relatively far. Furthermore, by making the liquid storage container 200 detachable from the body 100, the connecting shaft 320 and the connecting shaft 330 are detachably connected, allowing the liquid storage container 200, the filter device 400, the connecting shaft 320, and the bearing 500 to be removed together.

[0093] Furthermore, the insertion protrusion 331 and the slot 321 may both have a draft angle (eg, 1°, 5°, 8°, etc.) to facilitate the connection and separation of the insertion protrusion 331 and the slot 321 .

[0094] like Figure 4 、 Figure 5 、 Figures 7 to 9 As shown, in some embodiments of the present invention, a sleeve 332 is provided at the bottom end of the connecting shaft 330, so that the connecting shaft 330 is sleeved with the rotating shaft 311 of the motor 310 through the sleeve 332. The sleeve 332 can be provided with a keyway, thread, or other structure that is compatible with the rotating shaft 311 of the motor 310 to ensure circumferential fixation between the sleeve 332 and the rotating shaft 311 of the motor 310.

[0095] Optionally, the shaft sleeve 332 is detachably connected to the rotating shaft 311 of the motor 310 , so that the user can remove the filter device 400 and the connecting shaft 320 together as needed.

[0096] like Figures 7 to 9 As shown, in some embodiments of the present invention, at least one radial hole 322 is provided on the circumferential surface of the top of the connecting shaft 320 , so that the connecting shaft 320 is coaxially fixed to the filter device 400 through the radial hole 322 .

[0097] Return to view Figure 4 and Figure 5 In some embodiments of the present invention, an upwardly raised boss 401 is provided in the middle of the bottom wall of the filter device 400, and at least one fixing hole 402 adapted to the radial hole 322 is provided on the circumferential surface of the boss 401, so that a threaded member or a pin shaft passes through the fixing hole 402 and is inserted into the radial hole 322 to fix the filter device 400 and the connecting shaft 320 together.

[0098] The threaded member may be any feasible member such as a screw, a bolt, a screw plug, etc. The pin is interference-fitted or snap-fitted with the radial hole 322 and / or the fixing hole 402 .

[0099] Furthermore, in other embodiments of the present invention, those skilled in the art may also omit the coupling shaft 330 as needed and directly connect the connecting shaft 320 to the rotating shaft 311 of the motor 310. For example, the shaft sleeve 332 may be provided at the bottom end of the connecting shaft 320 to be sleeved onto the rotating shaft 311 of the motor 310.

[0100] like Figure 1 、 Figure 2 and Figure 4 As shown, in some embodiments of the present invention, the filtration device 400 includes an inner filtration container 410 and an outer filtration container 420 disposed outside the inner filtration container 410 , so as to perform double filtration on the extract 002 through the inner filtration container 410 and the outer filtration container 420 .

[0101] like Figure 4 、 Figure 10 and Figure 11 As shown, in some embodiments of the present invention, a closing structure 411 is provided on the top of the inner filter container 410 to support the pressing block 700 , thereby preventing the pressing block 700 from falling into the inner filter container 410 .

[0102] like Figure 4 、 Figure 12 and Figure 13 As shown, in some embodiments of the present invention, the outer filter container 420 includes a filter portion 421, and the circumferential wall of the filter portion 421 is inclined outward along the radial direction r from the bottom to the top, so that the liquid 004 moves upward along the circumferential wall of the filter portion 421 under the action of centrifugal force, thereby increasing the filtration area of ​​the filter portion 421.

[0103] like Figure 12 and Figure 13 As shown, in some embodiments of the present invention, the outer filter container 420 may further include a stopper portion 422 and an apron portion 423. The stopper portion 422 is located on the top side of the filter portion 421 and is annular in shape. The apron portion 423 is located radially outward of the stopper portion 422 and is annular in shape. The apron portion 423 is in a clearance fit or in sliding contact with the liquid storage container 200.

[0104] like Figures 12 to 13 As shown, in some embodiments of the present invention, the outer filter container 420 may further include a neck portion 424 located between the filter portion 421 and the stop portion 422, and a sink 4201 is provided between one or both of the filter portion 421 and the neck portion 424. The sink 4201 is used to mount the balance ring 600.

[0105] Furthermore, the outer filter container 420 and the balance ring 600 can be fixed together by interference fit. Alternatively, those skilled in the art can also fix the outer filter container 420 and the balance ring 600 together by any other feasible method as needed, such as welding, clamping, bonding, etc.

[0106] In the present invention, the balance ring 600 can be made of metal, plastic, rubber, etc. Moreover, the balance ring 600 can be a solid structure or a hollow structure.

[0107] from Figure 4 It can be seen that in some embodiments of the present invention, the inner filter container 410 is disposed in the filter portion 421 , and the closing structure 411 of the inner filter container 410 is aligned with the neck 424 of the outer filter container 420 .

[0108] Furthermore, in some embodiments of the present invention, the aperture of the filter holes on the inner filter container 410 can be larger than the aperture of the filter holes on the outer filter container 420, so that the flow capacity of the filter part 421 of the outer filter container 420 is smaller than the flow capacity of the inner filter container 410, thereby preventing the liquid 004 in the outer filter container 420 from being quickly thrown out.

[0109] like Figures 10 to 13 As shown, in some embodiments of the present invention, the boss 401 includes a first boss 4011 that rises upward from the middle portion of the bottom wall of the inner filter container 410 and a second boss 4012 that rises upward from the middle portion of the bottom wall of the outer filter container 420. The fixing hole 402 includes a first fixing hole 4021 provided on the first boss 4011 and a second fixing hole 4022 provided on the second boss 4012.

[0110] like Figure 4 and Figure 5 As shown, in the assembled state, the second boss 4012 is embedded in the first boss 4011, and the first fixing hole 4021, the second fixing hole 4022 and the radial hole 322 are aligned to avoid the threaded member or the pin.

[0111] Further, when the connecting shaft 320 , the inner filter container 410 , and the outer filter container 420 are fixed by threaded members, at least one of the first fixing hole 4021 , the second fixing hole 4022 , and the radial hole 322 is a threaded hole.

[0112] Furthermore, the first boss 4011 and the second boss 4012 are clearance fit or interference fit, and the second boss 4012 and the connecting shaft 320 are clearance fit or interference fit.

[0113] In particular, when the first boss 4011 and the second boss 4012 are in interference fit, and when the second boss 4012 and the connecting shaft 320 are in interference fit, radial displacement in the direction r between the two relative positions can be avoided, thereby ensuring the coaxiality between the connecting shaft 320, the inner filter container 410, and the outer filter container 420, thereby helping to prevent the center of mass of the three from deviating from the rotation axis 311 of the three (the line with the rotation axis 311). Figure 4 The central axis is parallel to z).

[0114] Furthermore, although not shown in the figures, in some embodiments of the present invention, the centrifugal extractor 001 may also include or be configured with a circulation system. This circulation system comprises an inlet pipe, a pump, and a liquid outlet pipe, which are fluidically connected in sequence. The end of the inlet pipe, remote from the pump, is located within the liquid storage container 200, while the end of the liquid outlet pipe, remote from the pump, is located on the top side of the inner filter container 410. This allows the liquid in the liquid storage container 200 to be pumped into the inner filter container 410 when the pump is in operation.

[0115] Refer to the following Figure 14 Taking the case where the object to be extracted 002 is coffee as an example, the working principle and usage of the centrifugal extraction machine 001 of the present invention will be briefly described. Figure 14 The filtering holes on the inner filtering container 410 are hidden in the figure to facilitate intuitive observation by those skilled in the art.

[0116] like Figure 14 As shown, after the material to be extracted 002 is placed into the inner filter container 410, the pressing block 700 is placed, and the motor 310 is started. The motor 310 drives the filter device 400 in a forward rotation, thereby generating centrifugal force on the material to be extracted 002 in the inner filter container 410 and causing it to adhere to the circumferential sidewalls of the inner filter container 410. During this process, the balance ring 600 rotates along with the outer filter container 420 to improve the dynamic balance of the filter device 400.

[0117] Continue reading Figure 14 After liquid 004 (specifically, water) is added to inner filter container 410, liquid 004 generates centrifugal force as inner filter container 410 rotates, passing through the object to be extracted 002, thereby forming a solution containing the target substance 003 dissolved in the object to be extracted 002. For ease of explanation, this solution will be referred to as liquid 004 below.

[0118] Continue reading Figure 14 As the inner filter container 410 rotates, the liquid 004 in the inner filter container 410 passes through the inner filter container 410 and is thrown out to the outer filter container 420. The liquid 004 in the outer filter container 420 is thrown out into the liquid storage container 200 through the filter holes on the filter part 421.

[0119] During this process, the pump is controlled to operate so as to pump the liquid 004 in the liquid storage container 200 into the inner filtration container 410 , thereby performing cyclic extraction on the object to be extracted 002 .

[0120] Alternatively, water may be slowly added to the inner filter container 410 while the motor 310 is running, so that the inner filter container 410 slowly and continuously throws out the water therein.

[0121] from Figures 1 to 4 As can be seen in the figure, in the present invention, the pressing block 700 can be set to be annular to facilitate adding water into the inner filter container 410.

[0122] After the centrifugal extractor 001 of the present invention completes extraction, the liquid 004 in the liquid storage container 200 is discharged through the liquid discharge channel 201 .

[0123] In order to prevent the liquid 004 in the liquid storage container 200 from being discharged during the extraction process, those skilled in the art may also configure a plug for the drainage channel 201 as needed to close the drainage channel 201 through the plug, and remove the plug from the drainage channel 201 when drainage is required.

[0124] In the present invention, whether the centrifugal extractor 001 has completed the extraction of the extract 002 can be determined by counting the running time of the motor 310, or by determining whether the solubility of the liquid 004 in the liquid storage container 200 has reached the value set by the user.

[0125] 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.

[0126] Based on the foregoing description, those skilled in the art will understand that the centrifugal extractor 001 of the present invention not only improves the completeness of its extraction of the extract 002, but also effectively avoids eccentric rotation of the filter device 400 by providing the bearing 500, thereby reducing operating noise and improving the user experience.

[0127] Thus far, the technical solutions of the present invention have been described in conjunction with the above-mentioned multiple embodiments. However, it is easy for those skilled in the art to understand that the scope of protection of the present invention is not limited to these specific embodiments. Without departing from the technical principles of the present invention, those skilled in the art may split and combine the technical solutions of the above-mentioned various embodiments, and may 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 shall fall within the scope of protection of the present invention.

Claims

1. A centrifugal extractor, characterized in that: include: body; a liquid storage container, mounted on the fuselage; a motor, mounted on the fuselage or the liquid storage container; A connecting shaft, drivingly connected to the motor; A filtering device is disposed in the liquid storage container and is fixedly connected to or integrally formed with the connecting shaft, so that the filtering device can extract the substance to be extracted therein by centrifugation; At least one bearing is provided between the connecting shaft and the liquid storage container to support the connecting shaft and prevent the connecting shaft from rotating eccentrically.

2. The centrifugal extractor according to claim 1, characterized in that The liquid storage container is provided with a fixing seat, and an accommodating cavity is defined in the fixing seat. The accommodating cavity is used to accommodate at least a part of the connecting shaft and to install the bearing.

3. The centrifugal extractor according to claim 2, characterized in that The fixing seat is loosely matched with the filter device in the axial direction to prevent the fixing seat from hindering the filter device from rotating.

4. The centrifugal extractor according to claim 3, characterized in that At least one of the bearings is located at the top end of the fixing seat so as to be as close as possible to the filtering device.

5. The centrifugal extractor according to claim 4, characterized in that The centrifugal extractor comprises two bearings, which are spaced apart from each other; and / or, The bearing is a magnetic bearing.

6. The centrifugal extractor according to any one of claims 2 to 5, characterized in that The motor is mounted on the fuselage. The accommodating cavity penetrates the liquid storage container in the axial direction so that the connecting shaft is connected to the rotating shaft of the motor.

7. The centrifugal extractor according to claim 6, characterized in that The centrifugal extractor further includes a connecting shaft provided between the connecting shaft and the rotating shaft of the motor. The connecting shaft is circumferentially fixedly connected to the connecting shaft, and the connecting shaft is circumferentially fixedly connected to the rotating shaft of the motor.

8. The centrifugal extractor according to claim 7, characterized in that One of the bottom end of the connecting shaft and the top end of the engaging shaft is provided with a slot, and the other is provided with an insertion protrusion, so that the connecting shaft and the engaging shaft can be detachably plugged together through the slot and the insertion protrusion; the liquid storage container is detachably connected to the body; and / or, A shaft sleeve is provided at the bottom end of the connecting shaft so that the connecting shaft is sleeved with the rotating shaft of the motor through the shaft sleeve.

9. The centrifugal extractor according to any one of claims 1 to 5, characterized in that The circumferential surface of the top of the connecting shaft is provided with at least one radial hole; An upwardly raised boss is provided in the middle of the bottom wall of the filter device, and at least one fixing hole adapted to the radial hole is provided on the circumferential surface of the boss, so that the filter device and the connecting shaft can be fixed together by a threaded member or a pin passing through the fixing hole and inserted into the radial hole.

10. The centrifugal extractor according to claim 9, characterized in that The filtering device comprises a coaxial inner filtering container and an outer filtering container; The bosses include a first boss that rises upward from the middle of the bottom wall of the inner filter container and a second boss that rises upward from the middle of the bottom wall of the outer filter container; The fixing holes include a first fixing hole provided on the first boss and a second fixing hole provided on the second boss.

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