Centrifugal extractor

Abstract

The utility model belongs to the technical field of beverage extraction equipment, and particularly provides a centrifugal extractor. The utility model aims to solve the problem that the existing extraction equipment is relatively poor in extraction completeness of a to-be-extracted object. Therefore, the centrifugal extractor comprises a machine body, a liquid storage container arranged on the machine body, 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 machine body. 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. BACKGROUND

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

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

[0004] One object of the utility model is to solve the problem of poor completeness of the existing extraction equipment for extracting the extraction objects.

[0005] Another object of the utility model is to reduce the running noise of the centrifugal extractor.

[0006] To achieve the above-mentioned objects, the utility model provides a centrifugal extractor, which comprises:

[0007] a machine body;

[0008] a liquid storage container installed on the machine body;

[0009] a motor installed on the machine body;

[0010] a connecting shaft in driving connection with the motor;

[0011] a filter device arranged in the liquid storage container and fixedly connected with or integrally formed with the connecting shaft, so that the filter device extracts the extraction objects therein by means of centrifugation;

[0012] at least one bearing arranged between the connecting shaft and the machine body to support the connecting shaft and prevent eccentric rotation of the connecting shaft.

[0013] Optionally, the liquid storage container is provided with a relief hole and an annular baffle surrounding the relief hole; the machine body is provided with a fixing seat for installing the bearing, and the fixing seat penetrates the relief hole and is partially located in the annular baffle.

[0014] Optionally, the top surface of the fixing seat is higher than the top surface of the annular baffle; and / or the fixing seat is in gap fit with the filter device in the axial direction, so as to prevent the fixing seat from hindering the rotation of the filter device.

[0015] Optionally, one of the at least one bearing is located at the top end of the fixed base to be as close as possible to the filtering device.

[0016] Optionally, the centrifugal extractor comprises two bearings, and the two bearings are spaced apart; and / or the bearing is a magnetic suspension bearing.

[0017] Optionally, the connecting shaft is coaxially and fixedly connected with the rotating shaft of the motor through the bottom of the connecting shaft, and the connecting shaft is coaxially and fixedly connected with the filtering device through the top of the connecting shaft.

[0018] Optionally, the bottom of the connecting shaft is provided with a shaft sleeve, so that the connecting shaft is connected with the rotating shaft of the motor through the shaft sleeve.

[0019] Optionally, the top of the connecting shaft is provided with at least one radial hole; the middle of the bottom wall of the filtering device is provided with a boss protruding upward, and the circumferential surface of the boss is provided with at least one fixing hole matched with the radial hole, so that the filtering device and the connecting shaft are fixed together by penetrating the fixing hole with a threaded member or a pin shaft and inserting the radial hole.

[0020] Optionally, the filtering device comprises coaxial inner and outer filtering containers; the boss comprises a first boss protruding upward from the middle of the bottom wall of the inner filtering container and a second boss protruding upward from the middle of the bottom wall of the outer filtering container; and the fixing hole comprises a first fixing hole arranged on the first boss and a second fixing hole arranged on the second boss.

[0021] Optionally, the second boss is embedded in the inner part of the first boss and is in clearance fit or interference fit with the first boss.

[0022] Based on the foregoing description, those skilled in the art can understand that, in the technical solutions of the foregoing centrifugal extractor, the filtering device driven by the motor can perform centrifugal extraction on the to-be-extracted material placed in the filtering device through rotation, and the target substance extracted out can be thrown out of the filtering device. During centrifugal extraction, the target substance on the to-be-extracted material is more easily thrown out of the filtering device, so that the centrifugal extractor improves the completeness of extraction of the to-be-extracted material.

[0023] And, the utility model still connect together through connecting shaft motor and filter device, and set up at least one bearing between connecting shaft and fuselage, support connecting shaft, effectively prevent eccentric rotation of connecting shaft and filter device. In other words, because the setting of bearing, make the filter device in its inside uneven distribution of the extract, when eccentric, can pass through the bearing offset eccentric force when filter device rotates, rectify filter device. Therefore, the utility model effectively avoided the vibration because of filter device and connecting shaft and other components eccentric, thereby reduce the noise when centrifugal extractor runs.

[0024] Further, by making the fixed seat gap fit with the filter device in the axial direction, both makes the fixed seat and the filter device close enough, and avoids the fixed seat hindering the rotation of the filter device.

[0025] Further, by making a bearing located at the top end of the fixed seat, to be as close as possible to the filter device, which helps to reduce the eccentricity of the filter device when rotating, avoids the filter device eccentricity to bring larger eccentric moment to the connecting shaft, further reduces the noise when the centrifugal extractor runs.

[0026] Further, by setting the bearing as a magnetic suspension bearing, the friction and friction noise inside the bearing are reduced, further reducing the noise when the centrifugal extractor runs.

[0027] Further, by setting radial holes on the top of the connecting shaft, setting a boss upwardly protruding in the middle of the bottom wall of the filter device, and setting a fixing hole on the boss, the filter device and the connecting shaft can be fixed together by the threaded member or the pin shaft penetrating the fixing hole and inserting into the radial hole, realizing the coaxial fixation of the filter device and the rotating shaft of the motor.

[0028] Other beneficial effects of the utility model will be described in detail in the following with reference to the drawings, so that the person skilled in the art can more clearly understand the improvement purpose, features and advantages of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme of the utility model, hereinafter, some embodiments of the utility model will be described with reference to the drawings. The person skilled in the art should understand that the components or parts indicated by the same reference signs in different drawings are the same or similar; The drawings of the utility model are not necessarily drawn to scale with each other. In the drawings:

[0030] Figure 1 It is the structure exploded view (first axis measurement viewing angle) of the centrifugal extractor in some embodiments of the utility model;

[0031] Figure 2is a structure exploded view of the centrifugal extractor in some embodiments of the utility model (second axonometric viewing angle);

[0032] Figure 3 is an axonometric view of the centrifugal extractor in some embodiments of the utility model;

[0033] Figure 4 is Figure 3 is a sectional view of the centrifugal extractor along the A-A direction in some embodiments of the utility model;

[0034] Figure 5 is Figure 4 is an enlarged view of the F part in some embodiments of the utility model;

[0035] Figure 6 is Figure 3 is a sectional view of the machine body along the A-A direction in some embodiments of the utility model;

[0036] Figure 7 is Figures 1 to 4 is a structure exploded view of the motor and connecting shaft (first axonometric viewing angle) in some embodiments of the utility model;

[0037] Figure 8 is Figures 1 to 4 is a structure exploded view of the motor and connecting shaft (second axonometric viewing angle) in some embodiments of the utility model;

[0038] Figure 9 is Figure 7 is a sectional view of the motor and connecting shaft along the B-B direction in some embodiments of the utility model;

[0039] Figure 10 is Figures 1 to 4 is an axonometric view of the inner filter container in some embodiments of the utility model;

[0040] Figure 11 is Figure 10 is a sectional view of the inner filter container along the C-C direction in some embodiments of the utility model;

[0041] Figure 12 is Figures 1 to 4 is an axonometric view of the outer filter container in some embodiments of the utility model;

[0042] Figure 13 is Figure 12 is a sectional view of the outer filter container along the D-D direction in some embodiments of the utility model;

[0043] Figure 14 is a centrifugal extraction effect schematic view of the filter device in some embodiments of the utility model.

[0044] Explanation of reference signs:

[0045] 001, centrifugal extractor;002, material to be extracted;003, target substance;004, liquid;

[0046] 100, body; 101, top cavity; 102, bottom cavity; 110, knob; 120, fixing seat; 121, accommodating cavity;

[0047] 200, liquid storage container; 201, liquid discharge channel; 202, avoiding hole; 210, annular baffle;

[0048] 310, motor; 311, rotating shaft;

[0049] 320, connecting shaft; 321, shaft sleeve; 322, radial hole;

[0050] 400, filtering device; 401, boss; 4011, first boss; 4012, second boss; 402, fixing hole; 4021, first fixing hole; 4022, second fixing hole; 410, inner filtering container; 411, closing structure; 420, outer filtering container; 4201, sink; 421, filtering part; 422, stop part; 423, apron part; 424, neck part;

[0051] 500, bearing;

[0052] 600, balance ring;

[0053] 700, pressing block;

[0054] θ, circumferential direction; z, axial direction; r, radial direction. DETAILED DESCRIPTION

[0055] Those skilled in the art should understand that the embodiments described below are only a part of the embodiments of the present application, not all the embodiments of the present application, and the part of the embodiments are intended to explain the technical principles of the present application, not to limit the protection scope of the present application. Based on the embodiments provided by the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor should fall within the protection scope of the present application.

[0056] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the corresponding device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0057] Further, it needs to be further pointed out that in the description of the utility model, unless there is another explicit provision and limitation, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. For example, the terms "mounting", "connecting", "connection" and "fixing" can be bolt connection, screw connection, welding, insertion, riveting, fusion, clamping or any other feasible connection form without special description.

[0058] As shown in some embodiments of the utility model, the centrifugal extractor 001 uses centrifugal extraction technology innovatively, and includes a machine 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 pressing block 700. Figures 1 to 5

[0059] Among them, the machine body 100 is defined with a top cavity 101 and a bottom cavity 102, the top cavity 101 is used to arrange the liquid storage container 200 and the filtering device 400, and the bottom cavity 102 is used to arrange the motor 310. Of course, under the premise of being able to install the liquid storage container 200, the motor 310 and the filtering device 400, those skilled in the art can also set the machine body 100 to other any feasible shape according to the needs, for example, a hollow barrel-shaped member.

[0060] Among them, the liquid storage container 200 is used to contain the liquid 004 (as shown in Figure 14 ) added into the centrifugal extractor 001, or the liquid 004 generated in the working process of the centrifugal extractor 001.

[0061] Among them, the motor 310 is installed on the machine body 100 and arranged in the bottom cavity 102. The motor 310 and the machine body 100 can be fixed together by any feasible way such as screw connection, bolt connection, clamping, bonding, etc.

[0062] Among them, the connecting shaft 320 is drivingly connected with the motor 310.

[0063] Among them, the filtering device 400 is arranged in the liquid storage container 200 and fixedly connected or integrally made with the connecting shaft 320, so that the filtering device 400 extracts the to-be-extracted material 002 (as shown in Figure 14 ) in it by centrifugal extraction, and the target substance 003 (as shown in Figure 14 ) is thrown out from the filtering device 400 to the liquid storage container 200 under the action of centrifugal force.​

[0064] The bearing 500 is arranged between the connecting shaft 320 and the machine body 100 to support the connecting shaft 320 and prevent eccentric rotation of the connecting shaft 320 and the filtering device 400.

[0065] The balance ring 600 is fixed opposite to the filtering device 400 to improve the dynamic balance of the filtering device 400, thereby reducing the operation noise of the centrifugal extractor 001. In addition, the balance ring 600 can be omitted according to the needs of those skilled in the art.

[0066] The pressing block 700 is detachably arranged in the inner filtering container 410 to press the to-be-extracted material 002 in the inner filtering container 410, so as to prevent the to-be-extracted material 002 from being thrown out of the inner filtering container 410. In addition, the pressing block 700 can be omitted according to the needs of those skilled in the art, or the pressing block 700 can be arranged in the form of a cover, a plug or other components.

[0067] Those skilled in the art can understand that the filtering device 400 driven by the motor 310 can perform centrifugal extraction on the to-be-extracted material 002 placed therein by rotating, and make the extracted target substance 003 thrown out of the filtering device 400. During the centrifugal extraction, the target substance 003 on the to-be-extracted material 002 is more easily thrown out of the filtering device 400, so that the centrifugal extractor 001 improves the completeness of the extraction of the to-be-extracted material 002.

[0068] In addition, the motor 310 and the filtering device 400 are connected together through the connecting shaft 320, and at least one bearing 500 is arranged between the connecting shaft 320 and the machine body 100 to support the connecting shaft 320, thereby effectively preventing eccentric rotation of the connecting shaft 320 and the filtering device 400. In other words, due to the arrangement of the bearing 500, when the to-be-extracted material 002 in the filtering device 400 is unevenly distributed and eccentric, the eccentric force of the filtering device 400 during rotation can be offset by the bearing 500 to correct the filtering device 400. Therefore, the utility model effectively avoids the vibration caused by the eccentricity of the filtering device 400 and the connecting shaft 320 and the like, thereby reducing the noise during operation of the centrifugal extractor 001.

[0069] It should be noted that in the utility model, the to-be-extracted material 002 includes coffee powder and / or tea powder. For example, the to-be-extracted material 002 can be coffee powder or tea powder, or a mixture of coffee powder and tea powder.

[0070] Of course, those skilled in the art can also make the to-be-extracted material 002 include other any feasible powdery substances, such as soybean powder, mung bean powder, cocoa powder, lemon, etc.

[0071] The centrifugal extractor 001 will produce liquid 004 containing the target substance 003 (such as Figure 14 indicated by the small triangle) during the extraction of the to-be-extracted substance 002.

[0072] The target substance 003 can be a substance dissolved in water in the to-be-extracted substance 002. The liquid 004 is a liquid substance of the to-be-extracted substance 002 itself, or can be water. The water can be hot water, normal temperature water or cold water in temperature, and can be pure water, tap water, mineral water or water containing specific substances (such as sugar, milk, essence, etc.) in composition.

[0073] As shown in Figures 1 to 3 In some embodiments of the utility model, the machine body 100 can also be provided with a knob 110 to adjust the rotating speed of the motor 310 through the knob 110.

[0074] In addition, in other embodiments of the utility model, the skilled in the art can also omit the setting of the knob 110 as needed, and control the rotating speed of the filter device 400 through other buttons or other devices. The other buttons can be physical buttons provided on the centrifugal extractor 001 or virtual buttons displayed on the display screen of the centrifugal extractor 001. The other devices can be a remote controller compatible with the centrifugal extractor 001, or a mobile phone, tablet computer and the like in communication connection with the centrifugal extractor 001.

[0075] As shown in Figures 1 to 4 In some embodiments of the utility model, the liquid storage container 200 is placed in the top cavity 101 of the machine body 100 and can be detachably connected with the machine body 100 to facilitate the user to take down the liquid storage container 200 and clean it. Of course, the skilled in the art can also make the liquid storage container 200 fixedly connected with the machine body 100 as needed.

[0076] When the liquid storage container 200 is detachably connected with the machine body 100, the liquid storage container 200 and the machine body 100 are provided with a rotation stopping structure to prevent the liquid storage container 200 from rotating relative to the machine body 100. For example, Figure 1 and Figure 2 As shown, the circumferential wall of the liquid storage container 200 is provided with a protruding structure (not marked in the figure), and the machine body 100 is provided with a slot (not marked in the figure) matched with the protruding structure, the protruding structure is inserted into the slot, thereby realizing the circumferential θ (as shown in Figure 4 ) fixation of the liquid storage container 200 and the machine body 100. The side of the liquid storage container 200 away from the protruding structure can also be provided with a hanging ear (not marked in the figure), and the machine body 100 is provided with a clamping groove (not marked in the figure) corresponding to the hanging ear, and the hanging ear is embedded in the clamping groove to further realize the circumferential θ fixation of the liquid storage container 200 and the machine body 100.

[0077] When the liquid storage container 200 is fixedly connected with the machine body 100, the two can be fixedly connected together through a fixing member, structure or material such as a screw, a buckle or an adhesive.

[0078] As shown in Figures 1 to 6 some embodiments of the present application, the machine body 100 is provided with a fixing seat 120 for mounting the bearing 500. The fixing seat 120 is defined with a receiving cavity 121 to mount the bearing 500 into the receiving cavity 121.

[0079] As can be seen from Figures 4 to 6 , in some embodiments of the present application, the receiving cavity 121 penetrates the fixing seat 120 in the axial direction z, so that the rotating shaft 311 of the motor 310 extends into the receiving cavity 121.

[0080] As shown in Figures 1 to 4 some embodiments of the present application, the liquid storage container 200 is provided with an avoiding hole 202 and an annular baffle 210 surrounding the avoiding hole 202, and the fixing seat 120 penetrates the avoiding hole 202 and is partially located in the annular baffle 210.

[0081] As can be understood by those skilled in the art, the above structure of the liquid storage container 200 and the cooperation relationship with the fixing seat 120 not only ensure the fixation of the bearing 500, but also make the structure more compact.

[0082] As can be seen from Figure 4 , in some embodiments of the present application, the top surface of the fixing seat 120 is higher than the top surface of the annular baffle 210, so that the fixing seat 120 can fully support the annular baffle 210 in the radial direction r, preventing the annular baffle 210 from deforming inwardly under stress.

[0083] Further, the fixing seat 120 and the annular baffle 210 can be in sealing contact, to prevent the liquid 004 in the liquid storage container 200 from leaking from the gap between the fixing seat 120 and the annular baffle 210. Specifically, the fixing seat 120 and the annular baffle 210 can be in sealing contact in the form of interference fit, and a sealing ring or the like can be arranged between the fixing seat 120 and the annular baffle 210.

[0084] As can be seen from Figure 4 , in some embodiments of the present application, the fixing seat 120 is in clearance fit with the filter device 400 in the axial direction z, so that the fixing seat 120 is close enough to the filter device 400, and the fixing seat 120 does not hinder the rotation of the filter device 400.

[0085] As shown in Figure 4 and Figure 5As shown in some embodiments of the present application, one bearing 500 is located at the top end of the fixed seat 120 to be as close to the filtering device 400 as possible, so as to help reduce the eccentricity of the filtering device 400 when rotating, and further avoid the filtering device 400 from bringing a large eccentric torque to the connecting shaft 320 when eccentric, and further reduce the noise of the centrifugal extractor 001 when running.

[0086] Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown in some embodiments of the present application, the centrifugal extractor 001 comprises 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 stress of a single bearing 500. In addition, the number of bearings 500 can also be set to any other feasible number according to the needs of those skilled in the art, such as one, three, four, etc.

[0087] Further, in the present application, the bearing 500 can be a magnetic suspension bearing to reduce the friction and friction noise inside the bearing 500, thereby further reducing the noise of the centrifugal extractor 001 when running.

[0088] As Figures 4 to 5 shown in some embodiments of the present application, the connecting shaft 320 is coaxially and fixedly connected with the rotating shaft 311 of the motor 310 through its bottom, and the connecting shaft 320 is coaxially and fixedly connected with the filtering device 400 through its top.

[0089] As Figures 7 to 9 shown in some embodiments of the present application, the bottom of the connecting shaft 320 is provided with a shaft sleeve 321, so that the connecting shaft 320 is sleeved with the rotating shaft 311 of the motor 310 through the shaft sleeve 321. The shaft sleeve 321 can be provided with a key groove, a thread and the like structure matched with the rotating shaft 311 of the motor 310, so as to ensure the circumferential fixation between the shaft sleeve 321 and the rotating shaft 311 of the motor 310.

[0090] Optionally, the shaft sleeve 321 and the rotating shaft 311 of the motor 310 are detachably connected, so that the user can detach the filtering device 400 and the connecting shaft 320 together according to the needs.

[0091] As Figures 7 to 9 shown in some embodiments of the present application, the top of the connecting shaft 320 is provided with at least one radial hole 322 on the peripheral surface, so that the connecting shaft 320 is coaxially and fixedly connected with the filtering device 400 through the radial hole 322.

[0092] Referring back to Figure 4 and Figure 5In some embodiments of the present application, the middle part of the bottom wall of the filter device 400 is provided with a boss 401 protruding upward, and at least one fixing hole 402 adapted to the radial hole 322 is arranged on the peripheral surface of the boss 401, so as to fix the filter device 400 and the connecting shaft 320 together by penetrating the fixing hole 402 with a threaded member or a pin shaft and inserting it into the radial hole 322.

[0093] The threaded member can be a screw, a bolt, a threaded plug or any other feasible component. The pin shaft is in interference fit or clamped with the radial hole 322 and / or the fixing hole 402.

[0094] As shown in Figure 1 , Figure 2 and Figure 4 , in some embodiments of the present application, the filter device 400 comprises an inner filter container 410 and an outer filter container 420 arranged outside the inner filter container 410, so as to double-filter the to-be-extracted material 002 through the inner filter container 410 and the outer filter container 420.

[0095] As shown in Figure 4 , Figure 10 and Figure 11 , in some embodiments of the present application, the top of the inner filter container 410 is provided with a neck-in structure 411 to carry the pressing block 700, thereby preventing the pressing block 700 from falling into the inside of the inner filter container 410.

[0096] As shown in Figure 4 , Figure 12 and Figure 13 , in some embodiments of the present application, the outer filter container 420 comprises a filter part 421, and the peripheral wall of the filter part 421 is inclined outward along the radial direction r from the bottom to the top, so as to move the liquid 004 upward along the peripheral wall of the filter part 421 under the action of centrifugal force, thereby increasing the filtering area of the filter part 421.

[0097] As shown in Figure 12 and Figure 13 , in some embodiments of the present application, the outer filter container 420 can further comprise a stop part 422 and a skirt part 423. The stop part 422 is located at the top side of the filter part 421 and is arranged in an annular shape. The skirt part 423 is located outside the radial direction r of the stop part 422 and is arranged in an annular shape, and the skirt part 423 is in clearance fit or sliding contact with the liquid storage container 200.

[0098] As shown in Figures 12 to 13 , in some embodiments of the present application, the outer filter container 420 can further comprise a neck part 424 between the filter part 421 and the stop part 422, and a sink 4201 is arranged between one or both of the filter part 421 and the neck part 424. The sink 4201 is used to install the gimbal 600.

[0099] Further, the outer filter container 420 and the gimbal 600 can be fixed together in an interference fit manner. Alternatively, those skilled in the art can also fix the outer filter container 420 and the gimbal 600 in other arbitrary feasible manners according to needs, such as welding, clamping, bonding, etc.

[0100] In the utility model, the gimbal 600 can be made of metal, plastic, rubber or the like. Moreover, the gimbal 600 can be solid or hollow.

[0101] As can be seen from Figure 4 , in some embodiments of the utility model, the inner filter container 410 is arranged in the filter part 421, and the neck part 424 of the outer filter container 420 is aligned with the neck part 424 of the outer filter container 420.

[0102] Further, in some embodiments of the utility model, the aperture of the filter hole on the inner filter container 410 can be larger than the aperture of the filter hole on the outer filter container 420, so that the flow capacity of the filter part 421 of the outer filter container 420 is less than the flow capacity of the inner filter container 410, thereby preventing the liquid 004 in the outer filter container 420 from being rapidly thrown out.

[0103] As shown in Figures 10 to 13 , in some embodiments of the utility model, the boss 401 includes a first boss 4011 protruding upward from the middle of the bottom wall of the inner filter container 410 and a second boss 4012 protruding upward from the middle of the bottom wall of the outer filter container 420. The fixing hole 402 includes a first fixing hole 4021 arranged on the first boss 4011 and a second fixing hole 4021 arranged on the second boss 4012.

[0104] As shown in Figure 4 and Figure 5 , in the assembled state, the second boss 4012 is embedded in the interior of the first boss 4011, the first fixing hole 4021, the second fixing hole 4021 and the radial hole 322 are aligned to avoid the threaded member or the pin shaft.

[0105] Further, when the connecting shaft 320, the inner filter container 410 and the outer filter container 420 are fixed by the threaded member, at least one of the first fixing hole 4021, the second fixing hole 4021 and the radial hole 322 is a threaded hole.

[0106] Further, 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.

[0107] 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).

[0108] 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.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] In the process, the pump is controlled to pump the liquid 004 in the liquid storage container 200 into the inner filtering container 410, so as to perform the circulating extraction on the to-be-extracted material 002.

[0114] Alternatively, water can also be slowly added to the inner filtering container 410 in the process of the operation of the motor 310, so that the inner filtering container 410 slowly and continuously spins out the water in the inner filtering container 410.

[0115] It can be seen from Figures 1 to 4 In the utility model, the briquetting 700 can be arranged in a ring shape, so as to facilitate the water addition to the inner filtering container 410.

[0116] When the centrifugal extractor 001 of the utility model completes the extraction, the liquid 004 in the liquid storage container 200 is discharged through the liquid discharge channel 201.

[0117] In order to prevent the liquid 004 in the liquid storage container 200 from being discharged in the process of extraction, the person skilled in the art can also configure a plug for the liquid discharge channel 201 according to the needs, so as to close the liquid discharge channel 201 through the plug, and then remove the plug from the liquid discharge channel 201 when it is needed to discharge the liquid.

[0118] In the utility model, the time of the operation of the motor 310 can be counted to determine whether the centrifugal extractor 001 completes the extraction on the to-be-extracted material 002, and the solubility of the liquid 004 in the liquid storage container 200 can also be determined to determine whether the centrifugal extractor 001 completes the extraction on the to-be-extracted material 002.

[0119] It should be noted that the above-mentioned use method is only used to help the person skilled in the art to understand the centrifugal extractor 001 of the utility model, and does not mean that the centrifugal extractor 001 of the utility model can only have the above-mentioned use method.

[0120] Based on the foregoing description, the person skilled in the art can understand that the centrifugal extractor 001 of the utility model not only improves the completeness of the extraction on the to-be-extracted material 002, but also effectively avoids the eccentric rotation of the filtering device 400 by arranging the bearing 500, so as to reduce the operation noise and improve the user's experience.

[0121] Thus far, the technical solutions of the present application have been described in combination with the foregoing embodiments, but it is easily understood by those skilled in the art that the protection scope of the present application is not limited to these specific embodiments. On the premise of not deviating from the technical principles of the present application, those skilled in the art can disassemble and combine the technical solutions in the above-described embodiments, or can make equivalent changes or replacements to the related technical features, and any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present application will fall within the protection scope of the present application.

Claims

1. A centrifugal extractor, characterized in that The centrifugal extractor comprises: a machine body; a liquid storage container mounted on the machine body; a motor mounted on the machine body; a connecting shaft drivingly connected with the motor; a filter device arranged in the liquid storage container and fixedly connected with the connecting shaft or integrally formed with the connecting shaft, so that the filter device extracts the extractable substance in the filter device by centrifugal extraction; at least one bearing arranged between the connecting shaft and the machine body to support the connecting shaft and prevent the connecting shaft from eccentric rotation.

2. The centrifugal extractor according to claim 1, wherein the liquid storage container is provided with an avoiding hole and an annular baffle surrounding the avoiding hole; the machine body is provided with a fixing seat for mounting the bearing, the fixing seat penetrating the avoiding hole and partially located in the annular baffle.

3. The centrifugal extractor according to claim 2, wherein a top surface of the fixing seat is higher than a top surface of the annular baffle; and / or the fixing seat is axially clearance-fitted with the filter device to prevent the fixing seat from hindering the rotation of the filter device.

4. The centrifugal extractor according to claim 2 or 3, wherein one of the at least one bearing is located at a top end of the fixing seat to be as close as possible to the filter device.

5. The centrifugal extractor according to claim 4, wherein the centrifugal extractor comprises two bearings, and the two bearings are spaced apart.

6. The centrifugal extractor according to claim 4, wherein the bearing is a magnetic suspension bearing.

7. The centrifugal extractor according to any one of claims 1 to 3, wherein the connecting shaft is coaxially fixedly connected with a rotating shaft of the motor through a bottom portion of the connecting shaft; the connecting shaft is coaxially fixedly connected with the filter device through a top portion of the connecting shaft.

8. The centrifugal extractor according to claim 7, wherein the bottom portion of the connecting shaft is provided with a shaft sleeve to allow the connecting shaft to be sleeved with the rotating shaft of the motor.

9. The centrifugal extractor according to claim 7, wherein a circumferential surface of the top portion of the connecting shaft is provided with at least one radial hole; a middle portion of a bottom wall of the filter device is provided with a boss protruding upward, and a circumferential surface of the boss is provided with at least one fixing hole matched with the radial hole, so that the filter device and the connecting shaft are fixed together by a threaded member or a pin inserted through the fixing hole and the radial hole.

10. The centrifugal extractor according to claim 9, wherein the filter device comprises coaxial inner and outer filter containers; the boss comprises a first boss protruding upward from a middle portion of a bottom wall of the inner filter container and a second boss protruding upward from a middle portion of a bottom wall of the outer filter container; the fixing hole comprises a first fixing hole arranged on the first boss and a second fixing hole arranged on the second boss.

11. The centrifugal extractor according to claim 10, wherein the second boss is embedded in an inner portion of the first boss and clearance-fitted or interference-fitted with the first boss.

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