CN217450560U

CN217450560U - Centrifuge rotor and centrifuge

Info

Publication number: CN217450560U
Application number: CN202221277123.6U
Authority: CN
Inventors: 宋海蓉
Original assignee: Shanghai Jiemen Biotechnology Co ltd
Current assignee: Shanghai Jiemen Biotechnology Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-09-20
Anticipated expiration: 2032-05-16

Abstract

The utility model discloses a centrifuge rotor, this centrifuge rotor include rotor body and locating part. Be equipped with a plurality of chambeies that hold in the rotor main part, a plurality of chambeies that hold set up at the top surface opening of rotor main part and interval each other, hold the chamber and be used for holding centrifuging tube, pipette or other household utensils that hold the sample etc.. The locating part sets up on rotor body, and the locating part is used for restricting centrifuging tube or pipette to remove. According to the centrifuge rotor, the limiting piece is arranged on the centrifuge rotor, so that a centrifuge tube or a pipette in the accommodating cavity can be limited to move, the accommodating cavity of the centrifuge rotor can be suitable for centrifuge tubes or pipettes of various specifications, and the adaptability of the centrifuge is improved.

Description

Centrifuge rotor and centrifuge

Technical Field

The utility model relates to a centrifuge technical field, concretely relates to centrifuge rotor and centrifuge.

Background

Centrifuges are machines that utilize centrifugal force to separate components of a mixture of liquid and solid particles or liquid and liquid. The centrifugal machine is mainly used for separating solid particles from liquid in suspension, or separating two liquids which have different densities and are insoluble with each other in emulsion; it can also be used to remove liquids from wet solids, such as by spin drying clothes in a washing machine; the special overspeed tubular separator can also separate gas mixtures with different densities; some settling centrifuges can also grade solid particles according to density or granularity by utilizing the characteristic that solid particles with different densities or granularities have different settling speeds in liquid.

The centrifugation is to accelerate the sedimentation velocity of particles in liquid by using the strong centrifugal force generated by the high-speed rotation of a centrifuge rotor, and separate substances with different sedimentation coefficients and buoyancy densities in a sample.

Centrifuge rotors can accommodate sample containers, such as centrifuge tubes, pipettes, etc., and are typically designed with multiple accommodating cavities therein. However, since the diameters of centrifugal tubes or pipettes of different specifications are different, the accommodating chamber is difficult to adapt to centrifugal tubes or pipettes of different diameters, so that the adaptability of the centrifuge rotor is limited. Adopt the adapter to install in holding the intracavity among the prior art, to the centrifuging tube of different diameters, need purchase the adapter of different specifications, not only consume the experiment fund in a large number, in addition the experimentation, the operation is also very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a centrifuge rotor and centrifuge to solve the problem that exists among the above-mentioned prior art.

In order to solve the above problem, according to an aspect of the present invention, there is provided a centrifuge rotor, including:

the centrifugal tube centrifuge comprises a rotor main body, wherein a plurality of accommodating cavities are formed in the rotor main body, are opened on the top surface of the rotor main body and are arranged at intervals, and are used for accommodating centrifuge tubes;

the locating part, the locating part is connected rotor main part, the locating part is used for restricting the centrifuging tube removes.

In one embodiment, the retaining member is provided with a plurality of through holes arranged at intervals along the circumferential direction of the retaining member, and the retaining member is connected to the top of the rotor body and is rotatable around the axis of the rotor body, so that the through holes and the accommodating cavities at least partially overlap.

In one embodiment, the plurality of through holes and the plurality of accommodation cavities are equidistant from an axis of the rotor body.

In one embodiment, the diameter of the through hole is equal to the diameter of the accommodating cavity.

In one embodiment, the number of the through holes is the same as that of the accommodating cavities.

In one embodiment, the retaining member is rotatably connected to a central shaft of the rotor body.

In one embodiment, the limiting member is a chuck, the top of the rotor body is provided with a plurality of clamping grooves, and the plurality of clamping grooves are arranged at intervals along the circumferential direction of the rotor body;

the bottom of the chuck is provided with clamping blocks which are used for being selectively clamped into the clamping grooves, and the through hole and the accommodating cavity are at least partially overlapped.

In one embodiment, the retaining member is a ratchet wheel, and the rotor body is further provided with a stopping pawl and a biasing member, wherein the biasing member is configured to drive the stopping pawl to be inserted into a tooth groove of the ratchet wheel.

In one embodiment, the limiting member includes a plurality of interlaced wires formed by cross-connecting a plurality of elastic wires, the interlaced wires are respectively disposed on inner walls of the accommodating cavities, and the interlaced wires extend along a circumferential direction of the accommodating cavities.

The invention also relates to a centrifuge comprising the centrifuge rotor.

According to the centrifuge rotor, the limiting piece is arranged on the centrifuge rotor, so that a centrifuge tube or a pipette in the accommodating cavity can be limited to move, the accommodating cavity of the centrifuge rotor can be suitable for centrifuge tubes or pipettes of various specifications, and the adaptability of the centrifuge is improved.

Drawings

FIG. 1 is a schematic view of a centrifuge rotor of one embodiment of the present invention.

FIG. 2 is a chuck for a centrifuge rotor as described in connection with FIG. 1.

FIG. 3 is a cross-sectional view of a centrifuge rotor and chuck.

Reference numerals: 1. a centrifuge rotor; 11. an accommodating chamber; 12. a central shaft; 13. a card slot; 2. a chuck; 21. a through hole; 22. and (7) clamping blocks.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended as limitations on the scope of the invention, but are merely illustrative of the true spirit of the technical solution of the invention.

In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that an embodiment can be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the following description, for the sake of clarity, the structure and operation of the present invention will be described with the aid of directional terms, but the terms "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be understood as words of convenience and not as words of limitation.

The invention relates to a centrifuge rotor 1 comprising a rotor body and a limit piece. Be equipped with a plurality of chambeies 11 that hold in the rotor main part, a plurality of chambeies 11 that hold set up at rotor main part's top surface opening and separating from each other, hold chamber 11 and be used for holding centrifuging tube, pipette or other household utensils that hold the sample etc.. The limiting part is arranged on the rotor main body and used for limiting the movement of a centrifugal tube or a pipette and enabling the centrifugal tube or the pipette to be fixed in the accommodating cavity 11.

According to the centrifuge rotor, the limiting piece is arranged on the centrifuge rotor 1, so that a centrifuge tube or a pipette in the accommodating cavity 11 can be limited to move, the accommodating cavity 11 of the centrifuge rotor 1 can be suitable for centrifuge tubes or pipettes with various specifications, and the adaptability of the centrifuge is improved.

Optionally, in an embodiment, the limiting member is connected to the top of the rotor body and is rotatable along the axis of the rotor body, a plurality of through holes 21 are provided on the limiting member, and the plurality of through holes 21 are arranged at intervals along the circumferential direction of the limiting member, so that the through holes 21 and the accommodating cavities 11 at least partially overlap. It can be understood that by rotating the limiting member, the overlapping sizes of the through hole 21 and the accommodating cavity 11 can be different, and then the accommodating cavity 11 can be adapted to centrifuge tubes and pipettes with different specifications. For example, when a relatively thin centrifuge tube is required, the stopper can be rotated to reduce the overlapping portion between the through hole 21 and the accommodating cavity 11, so as to fix the relatively thin centrifuge tube.

Further, the plurality of through holes 21 and the plurality of accommodation cavities 11 are equidistant from the axis of the rotor body. The center of the through hole 21 and the center of the accommodating chamber 11 may overlap during rotation of the stopper. It will be understood that a thicker centrifuge tube or pipette can be mounted in the receiving chamber 11 when the through hole 21 and the center of the receiving chamber 11 overlap, that is, when the through hole 21 and the receiving chamber 11 overlap to the maximum extent in the axial direction.

Alternatively, the diameter of the through hole 21 is equal to the diameter of the accommodating chamber 11, and the through hole 21 and the accommodating chamber 11 can be overlapped in the axial direction thereof by rotating the stopper. It is understood that the diameter of the through hole 21 may also be slightly larger or slightly smaller than the diameter of the receiving cavity 11.

Optionally, the number of the through holes 21 is the same as that of the accommodating cavities 11, the through holes 21 correspond to the accommodating cavities 11 one by one, and when the limiting member is rotated, the through holes 21 and the accommodating cavities 11 may be overlapped to different degrees respectively. The diameters of the plurality of through holes 21 may be uniform, or a plurality of through holes 21 of different sizes may be provided.

Optionally, the limiter is rotatably connected to the central shaft 12 of the rotor body. The stopper is annular and provided around the central axis 12 of the rotor body, and the stopper rotates or revolves around the central axis 12 of the rotor body, and since the distance from the through hole 21 and the accommodating chamber 11 to the central axis is uniform, the through hole 21 and the accommodating chamber 11 can be overlapped by revolving the stopper along the central axis 12 of the rotor body. In addition, it should be understood that an annular rail may be disposed at the top of the rotor body, a slider that is engaged with the rail may be disposed at the bottom of the limiting member, and the limiting member may also rotate along the rotor body through the engagement between the slider and the rail, where the rotation manner of the limiting member is not limited.

In one embodiment, the limiting member is a chuck 2, the top of the rotor body is provided with a plurality of clamping grooves 13, and the plurality of clamping grooves 13 are arranged at intervals along the circumferential direction of the rotor body. The bottom of the chuck 2 is provided with a latch 22, and the latch 22 is used for selectively latching into the latch slot 13 and enabling the through hole 21 and the accommodating cavity 11 to at least partially overlap. Alternatively, the top of the latch 22 is provided with an elastic member or other biasing member, which can push the latch 22 to move toward the slot 13, so that the position-limiting member is fixed to the rotor body. Alternatively, a plurality of the fixture blocks 22 may be provided, the plurality of the fixture blocks 22 are circumferentially arranged along the limiting member, and the distance from the plurality of the fixture blocks 22 to the center of the rotor is consistent with the distance from the plurality of the clamping grooves 13 to the center of the rotor.

In another embodiment, the retaining member is a ratchet wheel, and the rotor body is further provided with a pawl and a biasing member, wherein the biasing member is configured to drive the pawl to be inserted into a tooth slot of the ratchet wheel. The periphery of the ratchet wheel is provided with a plurality of tooth grooves, and the multi-pass holes 21 are arranged along the circumferential direction of the ratchet wheel. The ratchet wheel is slidable along the central axis 12 of the rotor body, and when the ratchet wheel is rotated to a proper position, the pawl is driven by the biasing member and can be engaged in the tooth groove of the ratchet wheel, so that the ratchet wheel and the rotor body are relatively fixed.

Optionally, the limiting member includes a plurality of interlaced wires, the interlaced wires are formed by cross-connecting a plurality of elastic wires, the interlaced wires are respectively disposed on the inner walls of the accommodating cavities 11, and the interlaced wires extend along the circumferential direction of the accommodating cavities 11.

Alternatively, the rotor body may be generally cylindrical, or conical, as shown in FIG. 1. The top of the rotor body may be flat or concave as shown in fig. 1, and no matter what shape the top of the rotor body is, the shape of the stopper needs to match the shape of the top of the rotor body. For example, matching the rotor body shown in fig. 1, the position-limiting member needs to be designed into a disk shape, and the bottom of the position-limiting member needs to match the groove at the top of the rotor body. In addition, in order to facilitate the centrifugation, the accommodation chamber 11 is gradually deviated from the central axis 12 of the rotor body from the top to the bottom of the rotor body, and the accommodation chamber 11 is in an inclined state. The diameter of the accommodating cavity 11 is generally 38mm, the through hole 21 on the stopper can be set between 38mm and 42mm, and the device is suitable for centrifuge tubes of 1.5ml, 2ml, 4ml, 5ml, 7ml, 10ml, 15ml, 20ml, 25ml and 50 ml.

The invention also relates to a centrifuge comprising a centrifuge rotor 1 as described above. The centrifuge has a wide application range in the medical industry, is mainly used in the fields of blood separation, DNA research and the like, and is necessary equipment of medical research institutions. The centrifuge rotor 1 of the invention can be suitable for various centrifuge tubes and pipettes, is suitable for synchronous operation of various experiments, and is convenient to operate.

The preferred embodiments of the present invention have been described in detail, but it should be understood that various changes and modifications can be made by those skilled in the art after reading the above teaching of the present invention. Such equivalents are intended to fall within the scope of the claims appended hereto.

Claims

1. A centrifuge rotor, comprising:

2. The centrifuge rotor of claim 1 wherein the retaining member is provided with a plurality of through holes spaced circumferentially about the retaining member, the retaining member being attached to the top of the rotor body and rotatable about the axis of the rotor body such that the through holes and the receiving cavities at least partially overlap.

3. The centrifuge rotor of claim 2 wherein a plurality of said through holes and a plurality of said receiving cavities are equidistant from an axis of said rotor body.

4. The centrifuge rotor of claim 2 wherein the diameter of the through hole is equal to the diameter of the receiving cavity.

5. The centrifuge rotor of claim 2 wherein the number of through holes corresponds to the number of receiving cavities.

6. The centrifuge rotor of claim 2 wherein said retaining member is rotatably connected to a central shaft of said rotor body.

7. The centrifuge rotor of claim 6 wherein,

the limiting piece is a chuck, a plurality of clamping grooves are formed in the top of the rotor main body, and the plurality of clamping grooves are arranged at intervals along the circumferential direction of the rotor main body;

8. The centrifuge rotor of claim 6 wherein said retaining member is a ratchet wheel, and said rotor body further comprises a pawl and a biasing member, said biasing member being configured to drive said pawl into a tooth slot of said ratchet wheel.

9. The centrifuge rotor of claim 1, wherein the retaining member comprises a plurality of interlaced wires formed by intersecting a plurality of elastic wires, the interlaced wires are respectively disposed on inner walls of the accommodating cavities, and the interlaced wires extend along a circumferential direction of the accommodating cavities.

10. A centrifuge, characterized in that it comprises a centrifuge rotor according to any of claims 1-9.