Swing rotor assembly for centrifugal separator

Abstract

The present invention relates to a swing rotor assembly for a centrifugal separator, the swing rotor assembly being mounted on the inside of a housing of the centrifugal separator and rotating, the swing rotor assembly comprising: a rotor head composed of a U-shaped bent portion symmetrically formed to mount a basket, and a basket fixing portion formed on one side of the bottom surface of the U-shaped bent portion, the basket fixing portion fixing the U-shaped bent portion to the bottom surface of the U-shaped bent portion, the basket fixing portion fixing the U-shaped bent portion to the bottom surface of the U-shaped bent portion; the bracket is used for fixing the hanging basket so as to fix the position of the decantation suite inclined due to centrifugal force; the hanging basket is used for inserting and installing the decantation kit, is arranged on the U-shaped bending part, and rotates up and down by means of centrifugal force along with rotation of the rotor head; the driving part is composed of a rotating shaft part, a transmission part and a power supply part, the rotating shaft part is installed on the central bottom face of the rotor head, the transmission part is used for transmitting driving force to the rotating shaft part, and the power supply part is connected to the rotating shaft part and used for supplying direct-current power to the hanging basket fixing part.

Description

Technical Field

[0001] The present invention relates to a swing rotor assembly for a centrifuge. More specifically, the swing rotor assembly for a centrifuge is provided with a hanging basket fixing portion for fixing the position of the hanging basket. After a sample such as blood or bone marrow is put into a decanting kit installed in the hanging basket of the centrifuge for centrifugal separation, the separation and discharge in the decanting kit becomes simple. Background Art

[0002] When a suspension containing floating material is at rest, high-density materials gradually sink under the action of gravity, while low-density materials gradually move to the upper layer. This process is called sedimentation.

[0003] As mentioned above, when substances with density differences are mixed, sedimentation occurs, and over time, the mixture can be separated based on the density difference. As the gravity used to separate the mixture gradually increases, the density difference between the mixtures also increases, so the sedimentation phenomenon can be accelerated by artificially increasing gravity.

[0004] That is, using centrifugal force instead of gravity can easily accelerate the sedimentation phenomenon, and this process is called centrifugation. Centrifuges are machines that use the principle of centrifugal separation to separate, purify, and concentrate substances of different components or specific gravities. They can be divided into medical, wastewater treatment, uranium enrichment, production, and experimental uses according to their purpose of use.

[0005] In particular, medical centrifuges are used for the purpose of separating components for the purpose of analyzing blood, urine, saliva, etc. For example, platelet-rich plasma (PRP) obtained by centrifugation of bone marrow or blood refers to a highly enriched plasma component that is richer in platelets than ordinary bone marrow or blood. Since it contains a variety of growth factors, it can be used for wound healing and regeneration and reconstruction of damaged parts. For example, when it is injected into damaged parts such as ligaments and cartilage, it can be used for the purpose of reconstruction of damaged parts. Since one's own bone marrow or blood is used, not only is there no side effect, but the treatment effect is also very fast.

[0006] Based on the above technical ideas, Korean Patent No. 10-1387433 discloses a centrifugal separation device and a hanging basket that can combine the functions of a swing rotor and an angle rotor. Even if the entire rotor is not replaced, the swing rotor can realize the function of an angle rotor by replacing an appropriate hanging basket.

[0007] According to the prior art, multiple accommodating parts can be formed in the hanging basket to increase the processing capacity, and the size and shape of the accommodating parts can be changed within the hanging basket to provide a hanging basket applicable to various storage containers. With this feature, even when a single swinging rotor performs one centrifugal separation process, theoretically, separation by the swinging rotor, separation by the angle rotor, etc. can be performed simultaneously.

[0008] However, based on the advantages described so far, although the centrifugal separation of the sample can be simplified, after centrifugal separation inside the sample container, in order to inject the separated components into another space (chamber), it is necessary to discharge the sample while maintaining a specified inclined state, so there is a problem in that it is difficult to maintain the sample discharge angle.

[0009] To solve this problem, the present inventor disclosed an angle maintaining device using a solenoid valve in Korean Patent No. 2236888.

[0010] However, in the case of using a solenoid valve, it is necessary to install the solenoid valve and the battery for activating the solenoid valve together at the rotor head, so there is a problem that the vibration becomes severe due to the difference in battery weight.

[0011] Moreover, since two solenoid valves are required due to the short operating time of the solenoid valve, there are problems such as a complicated structure, difficulty in manufacturing, and an increase in the manufacturing cost of the centrifugal separation mechanism.

[0012] Prior Art Documents

[0013] Patent Documents

[0014] Korean Patent Publication No. 10-1387433 (authorized on April 15, 2014)

[0015] Korean Patent Publication No. 10-1893206 (authorized on August 23, 2018)

[0016] Korean Patent Publication No. 10-2129838 (authorized on June 29, 2020)

[0017] Korean Patent Publication No. 10-2236888 (authorized on March 31, 2021) Summary of the Invention

[0018] To solve the above problems, an object of the present invention is to provide a swinging rotor assembly for a centrifugal separator such that when the rotor is rotationally driven, the inclination angle of the hanging basket approaches horizontal due to centrifugal force, and by simplifying the structure of the hanging basket fixing part for maintaining the inclination angle of the hanging basket, the hanging basket fixing part can be driven by a constant power source without using a battery.

[0019] To achieve the above object, the swing rotor assembly for a centrifuge provided by the present invention is installed inside the centrifuge housing and rotates. The swing rotor assembly includes: a rotor head, which is composed of a U-shaped bending part and a hanging basket fixing part. The U-shaped bending part is symmetrically formed to install the hanging basket, and the hanging basket fixing part is formed on one side of the bottom surface of the U-shaped bending part for fixing the hanging basket to fix the position of the decanting kit inclined due to centrifugal force; a hanging basket for inserting and installing the decanting kit, arranged in the U-shaped bending part, and rotating up and down by means of centrifugal force as the rotor head rotates; and a driving part, which is composed of a rotating shaft part, a transmission part, and a power supply part. The rotating shaft part is installed on the central bottom surface of the rotor head, the transmission part is used to transmit driving force to the rotating shaft part, and the power supply part is connected to the rotating shaft part for supplying DC power to the hanging basket fixing part.

[0020] The present invention is characterized in that the hanging basket fixing part is formed by an electromagnet, installed at the end of one side of the bottom surface of the U-shaped bending part, and operates by receiving DC power from the power supply part.

[0021] The present invention is characterized in that the hanging basket includes: a circular ring for inserting and installing the decanting kit; a pair of ring support plates connected to the lower ends on both sides of the circular ring and rotatably installed in the U-shaped bending part; and an attachment protrusion installed on the ring support plate corresponding to the position of the electromagnet so that it can be attached to the electromagnet when the ring support plate rotates by a specified angle through centrifugal force.

[0022] The present invention is characterized in that the transmission part includes: a driven pulley installed on the rotating shaft part and receiving the rotating force; a driving pulley receiving the rotating force of the motor and transmitting the rotating force to the driven pulley; a transmission belt connecting the driven pulley and the driving pulley; and a motor for rotating the driving pulley.

[0023] The present invention is characterized in that the transmission belt is a synchronous toothed belt or a V-belt.

[0024] The present invention is characterized in that the transmission part is a motor for driving the rotating shaft part.

[0025] The present invention is characterized in that the power supply part is a slip ring installed on the rotating shaft part for supplying DC power to the electromagnet.

[0026] The swing rotor assembly for a centrifuge of the present invention not only separates the components of the sample through the horizontal rotation of the rotor head, but also, because the structure of the hanging basket fixing part arranged on the rotor head is relatively simple, has the advantages of being able to improve the productivity of the product and reduce costs.

[0027] Moreover, in the swing rotor assembly for a centrifuge of the present invention, the hanging basket fixing part is formed by an electromagnet. Thus, not only can a constant power supply be received, but also the balance of the rotor head can be easily achieved. Therefore, it has the advantage of significantly reducing vibration or noise.

[0028] In addition, in the swing rotor assembly for a centrifuge of the present invention, since the hanging basket fixing part enables the decantation kit to maintain a specified angle within a desired time, when centrifuging a sample, it has the advantage of improving the separation efficiency of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A perspective view of a centrifuge equipped with the swing rotor assembly for a centrifuge of the present invention.

[0030] Figure 2 is Figure 1 a perspective view of the centrifuge in an open lid state.

[0031] Figure 3 is provided in Figure 1 a perspective exploded view of the swing rotor assembly for a centrifuge of the centrifuge.

[0032] Figure 4 A perspective view of the rotor head of the hanging basket equipped with the swing rotor assembly for a centrifuge of the present invention.

[0033] Figure 5 is equipped with Figure 4 a rear perspective view of the rotor head of the hanging basket.

[0034] Figure 6 A perspective view of the hanging basket of the swing rotor assembly for a centrifuge of the present invention.

[0035] Figure 7 A perspective view of the drive part of the first embodiment of the swing rotor assembly for a centrifuge of the present invention.

[0036] Figure 8 and Figure 9 is to remove Figure 7 a perspective view of the state of the partial structure of the drive part in

[0037] Figure 10 A perspective view of the working state showing the state of fixing the hanging basket part to the rotor head in the present invention.

[0038] Figure 11 is Figure 10 a rear side perspective view of

[0039] Figure 12 A perspective view of the drive part of the second embodiment of the swing rotor assembly for a centrifuge of the present invention.

[0040] Figure 13 Stereogram showing the state of removing part of the structure in the driving part of Figure 12 .

[0041] Figure 14 For Figure 13 exploded stereogram of the driving part of

[0042] Description of reference numerals

[0043] 1: Centrifugal separator

[0044] 10: Box body 11: Housing

[0045] 12: Cover 13: Cylinder device

[0046] 14: Controller 15: Support plate body

[0047] 16: Light emitting diode light source part 17: Cushion plate

[0048] 20: Oscillating rotor assembly 21: Rotor head

[0049] 22: Basket 23: Driving part

[0050] 24: Motor driver 25: Switching power supply

[0051] 211: Head main body 212: U-shaped bending part

[0052] 213: Basket fixing part 214: Groove cover

[0053] 215: Upper joint groove 216: Lower joint groove

[0054] 217: Through hole

[0055] 221: Circular ring 222: Ring support plate

[0056] 223: Attachment protrusion

[0057] 231: Rotating shaft part 232: Transmission part

[0058] 233: Fixed plate 234: Power supply part

[0059] 235: Cover cap 236: Shaft fixing plate

[0060] 237: Bracket 238: Fixed plate bracket

[0061] 239: Bearing part Detailed implementation mode

[0062] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the technical field to which the present invention pertains can easily implement the present invention. First, it should be noted that in the process of assigning reference numerals to the structural elements of the drawings, even if the same structural elements are shown in different drawings, the same reference numerals are assigned as much as possible. Also, in the process of describing the present invention, when it is determined that a specific description of a well-known structure or function may obscure the gist of the present invention, its detailed description will be omitted.

[0063] Figure 1 and Figure 2 is a perspective view of a centrifuge 1 equipped with the swing rotor assembly 20 for a centrifuge according to the present invention. As shown in the figure, the centrifuge 1 includes: a centrifuge housing 10; and a swing rotor assembly 20 installed in the centrifuge housing 10. The centrifuge housing 10 includes: a housing 11; a cover 12 for covering the housing 11; a cylinder device 13 for adjusting the opening and closing of the cover 12, connected to the housing 11 and the cover 12; a controller 14 provided on the upper part of the cover 12; a support plate portion 15 provided inside the housing 11 for supporting the swing rotor assembly 20; and a backing plate 17 for supporting the swing rotor assembly 20 on the lower side. Inside the support plate body 15, there is also an LED (light-emitting diode) light source portion 16 for irradiating an LED light source.

[0064] Figure 3 is an exploded perspective view of the internal structure of the centrifuge 1 according to the present invention. As shown in the figure, a switching mode power supply (SMPS) 25 and a motor driver 24 as internal structures are installed on the backing plate 17. A support plate body 15 is provided above the backing plate 17 for partitioning the interior of the centrifuge 1. A circular ring-shaped LED module 16 is installed inside the support plate body 15. The swing rotor assembly 20 is installed inside the ring-shaped LED module 16. The swing rotor assembly 20 includes: a drive portion 23 formed through a central hole of the LED module 16; a rotor head 21 installed on the upper part of the drive portion 23; and a hanging basket 22 installed on the rotor head 21.

[0065] Figure 4 and Figure 5 is a perspective view of the rotor head 21 and the hanging basket 22 of the swing rotor assembly 20 according to the present invention. Figure 4 is a front perspective view, Figure 5 is a rear perspective view. As Figure 4 and Figure 5As shown, the rotor head 21 includes: a head main body 211; U-shaped bending parts 212 symmetrically formed at four positions of the head main body 211 for installing the hanging basket 22; and a hanging basket fixing part 213 formed on one side of the bottom surface of the U-shaped bending part 212 for fixing the hanging basket 22 to fix the position of the decanting kit 30 inclined due to centrifugal force. In the drawings, although the head main body 211 is in a "+" shape, it can also be in a "-" shape. In the case of the "+" shape, four U-shaped bending parts 212 are formed, and in the case of the "-" shape, two U-shaped bending parts 212 are formed. Further, a through hole 217 may be formed in the head main body 211 to reduce weight. An upper engagement groove 215 is formed at the center of the front surface of the head main body 211 for fastening a fastening member required to fasten the fixed drive part 23, and a lower engagement groove 216 is formed at the center of the back surface of the head main body 211 for inserting the shaft joint 2312 of the drive part 23. As the shaft joint 2312 is inserted into the lower engagement groove 216, the shaft joint 2312 is fixed and fastened to the fastening hole 2153 formed in the upper engagement groove 215 and passing through the lower engagement groove 216 by a fastening member such as a bolt (not shown), so that the head main body 211 can be connected to the drive part 23. In the upper engagement groove 215, a groove cover 214 covers the upper engagement groove 215, and a wire through hole 2151 is formed at the center of the upper engagement groove 215 to allow the wire 2344 connected from the rotating shaft 2311 to the upper side to pass through. A wire discharge hole 2152 is formed outside the fastening hole 2153, so that the wire 2344 can be connected to the hanging basket fixing part 213 formed on the bottom surface of the U-shaped bending part 212. As Figure 4As shown, the wire 2344 passes through the shaft through-hole 2313 formed at the center of the rotating shaft 2311, and the wire 2344 at the upper part is connected to the electromagnet 2131 of the hanging basket fixing part 213 through the wire discharge hole 2152 of the upper engaging groove 215. The hanging basket 22 is provided at the U-shaped bending part 212. For this purpose, hinge shaft holes 2121 are formed on both sides of the U-shaped bending part 212 for installing a hinge shaft (not shown) so that the hanging basket 22 can rotate. The hanging basket 22 is rotatably installed in the hinge shaft holes 2121 through the hinge shaft. Thus, if the rotor head 21 rotates, the hanging basket 22 can be lifted upward by centrifugal force. A hanging basket fixing part 213 is formed on the bottom surface of one side of the U-shaped bending part 212. The hanging basket fixing part 213 includes: an electromagnet 2131 that fixes the hanging basket 22 at a specified angle so that the hanging basket 22 can maintain a state of rotating at a specified angle when the power supply unit 234 supplies power through the wire 2344; and a wire placement groove 2132 for placing the wire connected to the electromagnet 2131. The electromagnet 2131 can be inserted and installed by inserting the electromagnet 2131 into the groove formed on the bottom surface of the U-shaped bending part 212 and fastening the fastening member to the fastening hole 2122 on the front surface of the U-shaped bending part 212. Also, the placement groove cover 2134 for covering the wire placement groove 2132 can be fastened to prevent the wire from coming off.

[0066] Figure 6The hanging basket 22 is shown. As shown in the figure, the hanging basket 22 includes: a circular ring 221 for inserting and installing a decanting kit 30; a pair of ring support plates 222 connected to the lower ends on both sides of the circular ring 221 and rotatably installed on the U-shaped bending part 212; and an attachment protrusion 223 protruding and installed on the outside of one ring support plate 222. When the ring support plate 222 rotates by a specified angle due to the centrifugal force generated by the rotation of the rotor head 21, it attaches to the electromagnet 2131 to fix the position of the hanging basket 22. The decanting kit 30 is inserted into the hole 2211 of the circular ring 221. A ring support plate fastening hole 2212 is formed on the circular ring 221 along the outer side and offset. The circular ring 221 is connected to the ring support plate 222 through the ring support plate fastening hole 2212. If the attachment protrusion 223 installed on one ring support plate 222 attaches to the electromagnet 2131, the lower side of the decanting kit 30 is higher than the upper side. Therefore, the centrifuged sample is input from the first chamber 31 of the decanting kit into the second chamber 32. Thus, the part of the ring support plate 222 with the attachment protrusion 223 is inclined by a specified angle (θ) so that the lower side is higher than the upper side. Specifically, the decanting kit 30 includes: a first chamber 31 for initially inputting a sample such as blood to be centrifuged; a floating body (not shown) inserted inside the first chamber 31 and moving up and down by buoyancy; and a second chamber 32. When power is supplied, as the attachment protrusion 223 attaches due to the magnetic force of the electromagnet 2131, the upper side of the floating body of the centrifuged sample is input. In the state where the hanging basket 22 is inclined due to centrifugal force, when a DC power supply is applied to the electromagnet 2131 to generate a magnetic force, the attachment protrusion 223 will attach to the electromagnet 2131. If the attachment protrusion 223 attaches to the electromagnet 2131, the sample on the upper side of the floating body centrifuged in the first chamber 31 can be input into the second chamber 32 and separated.

[0067] Figures 7 to 9The driving unit 23 is shown. The driving unit 23 includes: a rotating shaft portion 231 mounted on the central bottom surface of the rotor head 21; a transmission portion 232 for transmitting driving force to the rotating shaft portion 231; and a power supply portion 234 connected to the rotating shaft portion 231 for supplying DC power to the hanging basket fixing portion 213. The transmission portion 232 is mounted on a fixing plate 233, and a hood 235 is mounted on the upper portion of the fixing plate 233. The hood 235 has a hole formed at the center. An axial fixing plate 236 for fixing the rotating shaft portion 231 is mounted inside the hood 235. The rotating shaft portion 231 is supported by a bearing portion 239 and mounted at the center of the axial fixing plate 236. The upper portion of the axial fixing plate 236 is fixed to the inside of the hood 235, and the lower portion is fixed by a bracket 237 mounted on the upper portion of the fixing plate 233. The rotating shaft portion 231 includes: a rotating shaft 2311; a shaft joint 2312 formed at the upper end of the rotating shaft 2311, inserted and mounted in the lower engaging groove 216 of the rotor head 21; a wire through hole 2313 formed at the center of the rotating shaft 2311 to allow a wire 2344 to pass through from the power supply portion 234; and a rotary joint 2314 connected to the power supply portion 234 at the lower end of the rotating shaft 2311. A fastening hole 23121 is formed in the shaft joint 2312. As a fastening member is fastened to the upper engaging groove 215 of the rotor head 21, the rotating shaft portion 231 is connected to the rotor head 21. Also, the rotating shaft 2311 is connected to the transmission portion 232 to transmit rotational force to the rotating shaft portion 231. The transmission portion 232 includes: a driven pulley 2321 mounted on the rotating shaft 2311; a driving pulley 2322 for transmitting rotational force to the driven pulley 2321; and a motor 2324 for transmitting rotational force to the driving pulley 2322. The driving pulley 2322 is mounted on the motor shaft 2325 of the motor 2324 to transmit the rotational force of the motor 2325 to the driven pulley 2321. The unit for transmitting rotational force from the driving pulley 2322 to the driven pulley 2321 is a belt 2323. The belt 2323 can be a synchronous toothed belt or a V-belt. The power supply portion 234 uses a slip ring. Generally, a slip ring consists of a non-rotating stator 2342 and a rotating rotor 2343. The stator 2342 is connected to an incoming wire 2341 to supply power to the rotor 2343. A wire 2344 connected to the rotor 2343 is connected to an electromagnet 2131 of the hanging basket fixing portion 213 through a wire through hole 2313 formed at the center of the rotating shaft 2311. The slip ring can be of a contact type or a non-contact type. The fixing plate 233 is fixed to the backing plate 17 by a fixing plate bracket 238.

[0068] Figure 10 and Figure 11The figure shows the rotor head 21 and the hanging basket 22 being fixed in position by the electromagnet after rotating due to centrifugal force. As shown in the figure, when the hanging basket 22 is tilted by a specified angle due to centrifugal force, if power is applied to the electromagnet 2131, a magnetic force is generated. As power is applied to the electromagnet 2131 and the magnetic force is generated, the attachment protrusion 223 of the hanging basket 22 can be attached to the electromagnet 2131 by the magnetic force. If the attachment protrusion 223 is attached to the electromagnet 2131, the decantation kit 30 is in a state of being tilted by a specified angle (θ). Therefore, the centrifuged sample moves from the first chamber 31 to the second chamber 32.

[0069] Figures 12 to 14A diagram of the drive unit 23' of the second embodiment of the swinging rotor assembly 20. As shown in the figure, the drive unit 23' includes: a rotating shaft portion 231', mounted on the central bottom surface of the rotor head 21; a transmission portion 232', for transmitting driving force to the rotating shaft portion 231'; and a power supply portion 234', connected to the rotating shaft portion 231', for supplying DC power to the hanging basket fixing portion 213. The transmission portion 232' is mounted on the fixing plate 233'. A cap 235' is mounted on the upper portion of the fixing plate 233'. The above-mentioned cap 235' has a hole formed in the center. An axis fixing plate 236' for fixing the rotating shaft portion 231' is mounted inside the cap 235'. The transmission portion 232' is mounted on the central bottom surface of the axis fixing plate 236'. The transmission portion 232' includes a motor, and rotational force is transmitted to the rotating shaft portion 231' through the motor. A shaft joint 2312' fixed to the rotating shaft 2311' protrudes upward through a through hole 2361' formed in the center of the axis fixing plate 236'. The upper portion of the axis fixing plate 236' is fixed inside the cap 235', and the lower portion is fixed by a bracket 237' mounted on the upper portion of the fixing plate 233'. The rotating shaft portion 231' includes: a rotating shaft 2311', connected to the motor 232'; a shaft joint 2312', mounted at the upper end of the rotating shaft 2311', inserted and mounted in the lower engaging groove 216 of the rotor head 21; and a pair of wire through holes 2313', formed on both sides of the center of the rotating shaft 2311', such that a pair of wires 2344' pass through from the power supply portion 234'. The power supply portion 234' is connected to the lower end of the rotating shaft 2311'. A fastening hole 23121' is formed in the shaft joint 2312'. As the fastening member is fastened to the upper engaging groove 215 of the rotor head 21, the rotating shaft portion 231' is connected to the rotor head 21. The fixing plate 233' is fixed to the backing plate 17 through a fixing plate bracket 238'. The power supply portion 234' uses a slip ring. Generally, a slip ring consists of a non-rotating stator and a rotating rotor. The specific structure is the same as that of the power supply portion 234 of the drive unit 23 in the first embodiment. Therefore, the specific structure will be omitted. As described above, the stator is connected to the lead-in wire to supply power to the rotor. The wire 2344' connected to the rotor is connected to the electromagnet 2131 of the hanging basket fixing portion 213 through the wire through holes 2313' formed on both sides of the center of the rotating shaft 2311'. The slip ring can be of the contact type or the non-contact type.

[0070] Hereinafter, the operation of the swinging rotor assembly 20 for a centrifugal separator according to the present invention having the above structure will be described in detail.

[0071] First, as Figure 2As shown, as a structural component of the centrifuge 1, the swinging rotor assembly 20 of the present invention is installed in the housing 10 and is electrically connected to the controller 14 of the centrifuge 1. The decantation kit 30 is built into the hanging basket 22 of the rotor head 21. When the centrifuge 1 is operating, as the rotor head 21 connected to the device drive rotates horizontally, the sample contained in the decantation kit 30 can be separated by components (centrifuged).

[0072] The function of the swinging rotor assembly 20 of the present invention is that, as shown in the figure, the decantation kit 30 is inserted into the hanging basket 22, and an appropriate amount of sample is pre-injected into the first chamber 31 of the decantation kit 30.

[0073] If the decantation kit 30 is housed in the hanging basket 22, the drive motors 2324, 232'. As the rotor head 21 rotates due to motor drive, the sample injected into the decantation kit 30 is centrifuged due to the density difference. The centrifuged sample is divided into upper and lower parts according to the density difference, and there is a float at the boundary line.

[0074] After centrifugation, the hanging basket 22 is maintained at a specified angle by the hanging basket fixing part 213 so that it remains in a state of tilting at a specified angle for a specified time, so that the sample that needs to be centrifuged above the float can move from the first chamber 31 of the decantation kit 30 to the second chamber 32.

[0075] Thus, the decantation kits 30 respectively built into the hanging basket 22 can separately separate the components of the loaded samples according to the density difference. For example, in the case of blood, the component with the highest density, red blood cells, is concentrated at the lower part of the first chamber 31, the buffy coat composed of white blood cells and platelets with the second highest density, and the plasma with the lowest density. The remaining components except red blood cells are formed above the floating body.

[0076] The centrifugation step can be performed more than once. It can also be performed multiple times according to requirements. During the process of the sample from the first centrifugation moving to the second chamber 32, since the red blood cell component may also enter the second chamber 32, the red blood cells and the remaining components can be centrifuged by the second centrifugation.

[0077] After centrifugation is completed, the decantation kit 30 is taken out and the sample in the second chamber 32 of the decantation kit 30 is extracted.

[0078] The above description is only an illustrative description of the technical idea of the present invention. Those of ordinary skill in the technical field to which the present invention pertains can make various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. Therefore, the embodiments and drawings disclosed in the present invention are only for illustration and do not limit the technical idea of the present invention. The scope of the technical idea of the present invention is not limited to such embodiments and drawings. The protection scope of the present invention should be interpreted based on the scope of the invention claimed, and all technical ideas within the equivalent scope belong to the protection scope of the present invention.

Claims

1. A swing rotor assembly for a centrifuge, which is installed inside the centrifuge housing and rotates, and is characterized in that, The above-mentioned swinging rotor assembly includes: A rotor head, which is composed of a U-shaped bending part and a hanging basket fixing part. The above-mentioned U-shaped bending part is symmetrically formed for installing the hanging basket. The above-mentioned hanging basket fixing part is formed on one side of the bottom surface of the above-mentioned U-shaped bending part and is used to fix the hanging basket to fix the position of the decanting kit inclined due to centrifugal force; A hanging basket, which is used for inserting and installing the decanting kit, is arranged in the above-mentioned U-shaped bending part, and rotates up and down by means of centrifugal force as the above-mentioned rotor head rotates; and A driving part, which is composed of a rotating shaft part, a transmission part, and a power supply part. The above-mentioned rotating shaft part is installed on the central bottom surface of the above-mentioned rotor head. The above-mentioned transmission part is used to transmit driving force to the above-mentioned rotating shaft part. The above-mentioned power supply part is connected to the above-mentioned rotating shaft part and is used to supply DC power to the above-mentioned hanging basket fixing part.

2. The swing rotor assembly for a centrifugal separator according to claim 1, wherein, The above-mentioned hanging basket fixing part is formed by an electromagnet, is installed at one end of the bottom surface of one side of the above-mentioned U-shaped bending part, and receives DC power from the above-mentioned power supply part to work.

3. The swing rotor assembly for a centrifugal separator according to claim 2, characterized in that, The above-mentioned hanging basket includes: A circular ring, which is used for inserting and installing the above-mentioned decanting kit; A pair of ring support plates, which are connected to the lower ends of both sides of the above-mentioned circular ring and are rotatably installed on the above-mentioned U-shaped bending part; and An attachment protrusion, which is installed on the ring support plate corresponding to the position of the above-mentioned electromagnet so that it can be attached to the above-mentioned electromagnet when the above-mentioned ring support plate rotates by a specified angle due to centrifugal force.

4. The swinging rotor assembly for a centrifugal separator according to claim 3, characterized in that, The above-mentioned transmission part includes: A driven pulley, which is installed on the above-mentioned rotating shaft part and receives the rotating force; A driving pulley, which receives the rotating force of the motor and transmits the rotating force to the above-mentioned driven pulley; A transmission belt, which connects the above-mentioned driven pulley and the above-mentioned driving pulley; and A motor, which is used to rotate the above-mentioned driving pulley.

5. The swing rotor assembly for a centrifuge according to claim 4, characterized in that, The above-mentioned transmission belt is a synchronous toothed belt or a V-belt.

6. The swing rotor assembly for a centrifuge according to claim 3, characterized in that, The above-mentioned transmission part is a motor for driving the above-mentioned rotating shaft part.

7. The swing rotor assembly for a centrifugal separator according to claim 4 or 6, characterized in that, The above-mentioned power supply part is a slip ring, which is installed on the above-mentioned rotating shaft part and is used to supply DC power to the above-mentioned electromagnet.

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