CN217164906U - Small centrifuge capable of resetting automatically - Google Patents

Abstract

The utility model provides a but small-size centrifuge of automatic re-setting, include: a driving member for forming a rotational driving force; a turntable coaxially connected to an output shaft of the driving member; a base connected to the turntable; the base is provided with a plurality of mounting parts; a plurality of centrifuge tubes for holding a material to be centrifuged; the centrifugal tube is fixed on the mounting part; the base is provided with at least one iron piece, and one side of the driving piece is provided with a magnet; when the driving piece stops, the iron piece and the magnet attract each other, so that the base stops at the original position. Through setting up iron piece on the base, set up magnet in driving piece one side, through the adsorption of magnet and iron piece, position when playing the stop motion of location base for the position when the base opens and stops two kinds of states is unanimous, realizes the automatic re-setting effect, so that the cooperation is got the operation of mechanism or sampling mechanism, and centrifuge body complete machine simple structure is small and exquisite.

Description

Small centrifuge capable of resetting automatically

Technical Field

The utility model relates to a centrifugal equipment technical field especially relates to a but small-size centrifuge of automatic re-setting.

Background

The centrifugal machine is an instrument device which is used for separating fractions of different molecules with different densities in a substance by the sedimentation motion of an object which rotates around a fixed rotating shaft under the action of a simulated earth gravity field generated by centrifugal force. The technique of analyzing and separating substances by centrifugal sedimentation is called centrifugation. The nucleic acid detection is to directly determine the sequence and structure of the harmful genes of animals or plants. In the nucleic acid detection process, the important step of separating and purifying nucleic acid needs to be completed by a centrifuge. The position of the centrifugal tube cannot be accurately reset after the centrifugation of the existing small-sized centrifuge is finished, and the subsequent operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to realize the purpose, the utility model discloses a following technical scheme realizes.

The utility model provides a but small-size centrifuge of automatic re-setting, include:

a driving member for forming a rotational driving force;

a turntable coaxially connected to an output shaft of the driving member;

a base connected to the turntable; the base is provided with a plurality of mounting parts;

a plurality of centrifuge tubes for holding a material to be centrifuged; the centrifugal tube is fixed on the mounting part;

the base is provided with at least one iron piece, and one side of the driving piece is provided with a magnet; when the driving piece stops, the iron piece and the magnet attract each other, so that the base stops at the original position.

Preferably, the fixing plate is coaxially connected to one end of the driving piece; the magnet is eccentrically arranged on the fixing plate.

Preferably, the fixing plate is annular, and a groove is formed in the periphery of the fixing plate; the groove is provided with a fixing hole; the magnet is arranged in the groove and is fixed in the fixing hole through a fastener.

Preferably, the rotary table further comprises a metal shaft sleeve, one end of the metal shaft sleeve is coaxially connected to the periphery of the output shaft of the driving piece, and the other end of the metal shaft sleeve is coaxially connected to the central shaft hole of the rotary table.

Preferably, the fixing plate further comprises a plurality of supporting columns which are distributed in a circumferential array and fixed on the fixing plate, and the supporting columns are used for forming a mounting structure of the whole machine.

Preferably, the number of the bases is at least two, and the bases are arranged around the output shaft of the driving part in a circumferential array.

Preferably, both ends of the base are rotatably connected to the turntable; the iron piece is arranged at the bottom of the base.

Preferably, the driving member is a coreless motor; the base and the centrifugal tube are POM parts.

Preferably, the iron member is a screw; and the plurality of screws are uniformly distributed at the bottom of the base.

Preferably, the method further comprises the following steps:

an optical coupler connected to the driving member;

a baffle plate arranged on the turntable;

the optocoupler is matched with the blocking piece to acquire the turntable position information.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model provides a but small-size centrifuge of automatic re-setting through set up iron spare on the base, sets up magnet in driving piece one side, through the adsorption of magnet and iron spare, position when playing location base stop motion for the base opens and stops the position when opening two kinds of states unanimous, realizes the automatic re-setting effect, so that the cooperation clamp gets the operation of mechanism or sampling mechanism, and centrifuge body complete machine simple structure is small and exquisite.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the specification, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a first structural sectional view of a centrifuge body according to the present invention;

fig. 2 is a first structural exploded view of the centrifuge body of the present invention;

FIG. 3 is a sectional view of the centrifuge body of the present invention;

fig. 4 is a schematic perspective view of a fixing plate according to the present invention;

fig. 5 is an exploded view of the centrifuge body of the present invention;

fig. 6 is a schematic view of a three-dimensional structure of the centrifuge body of the present invention.

In the figure: 100. a centrifuge body;

10. a drive member; 20. a turntable; 30. a base; 31. an installation part; 40. centrifuging the tube; 50. an iron member; 60. a magnet; 70. a fixing plate; 71. a groove; 711. a fixing hole; 72. a second card slot; 80. a metal shaft sleeve; 90. a pillar; 101. an optical coupler; 102. a baffle plate; 103. a housing; 1031. a fixed part; 1032. a notch; 104. a shaft sleeve; 105. a hinge pin.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a more detailed description of the present invention, which will enable those skilled in the art to make and use the present invention. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Example 1

The utility model provides a but small-size centrifuge of automatic re-setting, as shown in fig. 1 to fig. 3, including centrifuge body 100, centrifuge body 100 includes:

a driving member 10 for forming a rotational driving force;

a turntable 20 coaxially connected to an output shaft of the driver 10;

a base 30 connected to the turntable 20; the base 30 is provided with a plurality of mounting parts 31;

a plurality of centrifuge tubes 40 for holding a material to be centrifuged; the centrifugal tube 40 is fixed on the mounting part 31;

wherein, the bottom of the base 30 is provided with at least one iron piece 50, and one side of the driving piece 10 is provided with a magnet 60; when the driving member 10 stops, the ferrous member 50 attracts the magnet 60, so that the base 30 stops at the original position.

In this embodiment, through set up iron piece 50 on base 30, set up magnet 60 in driving piece 10 one side, through the adsorption of magnet 60 with iron piece 50, position when playing location base 30 stop motion for base 30 opens and stops the position when two kinds of states unanimous, realizes the automatic re-setting effect, so that the cooperation is got the operation of getting mechanism or sampling mechanism, and centrifuge body 100 complete machine simple structure is small and exquisite.

In one embodiment, as shown in fig. 3, the base 30 is provided with a plurality of first engaging grooves for forming the mounting portion 31; a centrifuge tube 40 is clamped in a first clamping groove, and is simple to assemble and easy to detach.

In one embodiment, as shown in fig. 1, when the driving member 10 stops, a ferrous member 50 on the base 30 faces the magnet 60 to form a strong attraction force to improve the magnetic attraction return effect.

In one embodiment, as shown in fig. 1 and 2, the centrifuge body 100 further includes a fixing plate 70 coaxially connected to one end of the driving member 10; the magnet 60 is eccentrically disposed on the fixing plate 70, so that the magnet 60 can be conveniently assembled and the structure of the driving member 10 is less modified.

Further, as shown in fig. 1 and 4, the fixing plate 70 is ring-shaped, and a groove 71 is formed on the outer periphery thereof; the groove 71 is provided with a fixing hole 711; the magnet 60 is disposed in the groove 71 and fixed to the fixing hole 711 by a fastener. The fixing plate 70 has a simple structure, and the magnet 60 is conveniently installed.

In one embodiment, as shown in fig. 1, the centrifuge body 100 further includes a metal bushing 80, one end of which is coaxially connected to the outer circumference of the output shaft of the driving member 10, and the other end of which is coaxially connected to the central shaft hole of the rotating disk 20. Specifically, the metal sleeve 80 is provided to play a role of receiving the driving member 10 and the turntable 20, and the metal sleeve 80 has high structural strength to enhance the assembly structural strength of the driving member 10 and the turntable 20.

In one embodiment, a protrusion is disposed at an end of the driving member 10 facing the turntable 20, and the protrusion is engaged with a central hole of the annular fixing plate 70 to pre-fix the driving member 10 and the fixing plate 70. Further, the driving member 10 and the fixing plate 70 are fixed by a plurality of fasteners.

In one embodiment, as shown in fig. 1 to 3 and 5, the centrifuge body 100 further includes a plurality of support posts 90 distributed in a circumferential array and fixed to the fixing plate 70 to form a mounting structure of the whole centrifuge. Specifically, when the centrifuge body 100 is installed, if the centrifuge body 100 is installed in a nucleic acid detection device, the bottom ends of the plurality of support posts 90 are fixed on a working table in the nucleic acid detection device, so as to support and fix the centrifuge body.

Further, the top ends of the supporting pillars 90 are fixed on the fixing plate 70 and a plurality of the supporting pillars 90 are distributed in an array along the circumference.

In one embodiment, as shown in fig. 2 and 5, the number of the bases 30 is at least two, and the bases are arranged in a circumferential array around the output shaft of the driving member 10. Specifically, the number of the bases 30 is increased to ensure the total amount of the centrifuge body 100 centrifuged at one time, and the size and weight of the bases 30 are reduced, so as to reduce the requirement for the attraction force between the iron 50 and the magnet 60 on the bases 30.

Further, as shown in fig. 2 and 3, both ends of the base 30 are rotatably connected to the turntable 20; the iron member 50 is disposed at the bottom of the base 30. Specifically, during centrifugation, the driving member 10 drives the turntable 20 to rotate the base 30, and the rotation acts to centrifuge the material in the centrifuge tube 40. In addition, the two ends of the base 30 and the rotation connection points of the turntable 20 form a rotation axis, the iron member 50 is disposed at the bottom of the base 30, so that the center of gravity of the base 30 moves downward, and when the turntable 20 drives the base 30 to rotate around the output shaft of the driving member 10, the base 30 rotates around the rotation axis formed at the two ends thereof relative to the turntable 20, thereby performing a centrifugal action. That is, in the centrifugation, the base 30 performs two kinds of rotational movements including a rotational movement around the output shaft of the driver 10 and a rotational movement around the rotational shaft formed at both ends of the base 30, and the centrifugation effect is excellent.

In an embodiment, the driving member 10 is a hollow cup motor, so as to realize high-speed rotation and instantaneous stop, and to cooperate with magnetic attraction reset to realize precise positioning.

In one embodiment, the base 30 and the centrifuge tube 40 are POM parts to reduce the weight, facilitate the rotation of the turntable 20 driven by the driving member 10 and facilitate the rotation of the centrifuge tube 40 relative to the turntable 20 driven by the base 30.

In one embodiment, as shown in fig. 1 and 3, the iron member 50 is a screw, which is simple in structure and easy to assemble; a plurality of screws are uniformly distributed on the bottom of the base 30 so that the attraction force between the iron 50 and the magnet 60 is controlled.

In one embodiment, as shown in fig. 5, the centrifuge body 100 further comprises:

an optical coupler 101 connected to the driver 10;

a stopper piece 102 provided on the turntable 20;

the optical coupler 101 is matched with the blocking piece 102 to acquire the position information of the turntable 20, so that the accurate stop position of the base 30 can be accurately controlled.

Further, as shown in fig. 4, the fixing plate 70 is provided with a second clamping groove 72 for clamping the optical coupler 101, and the assembly is simple and fast.

Further, the blocking piece 102 is integrally formed on the turntable 20, so that the structure is simple and the processing is convenient.

In one embodiment, as shown in fig. 2 and 3, the turntable 20 and the base 30 are hinged by matching sleeves 104 and hinge pins 105, and the assembly is simple and quick.

In one embodiment, as shown in fig. 1-3, 5, and 6, the centrifuge body 100 further comprises a cover 103 to form a protective cover and improve the aesthetic appearance of the outer surface of the centrifuge body 100.

Further, the housing 103 is provided with fixing portions 1031 at both sides thereof, and the fixing portions 1031 are provided with mounting holes for mounting on the mounting-target surface. When the centrifuge body 100 is mounted in the nucleic acid detecting apparatus, the fixing part 1031 is mounted to a table surface in the nucleic acid detecting apparatus by a fastener. That is, the cover 103 plays a protective role, and the assembly structure between the cover 103 and the components located therein is reduced, which is beneficial to simplifying the overall structure of the centrifuge body 100.

In one embodiment, the top surface of the housing 103 is provided with a notch 1032 to observe whether the susceptor 30 is stopped.

In one embodiment, the number of the bases 30 is two, the notches 1032 correspond to the positions of the magnets 60, and the cross-sectional dimension of the notches 1032 is larger than that of the bases 30, so as to observe whether the bases 30 attracted to the magnets 60 stop at the original positions when the driving member 10 stops, thereby ensuring the accuracy of the resetting.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the utility model can be smoothly implemented by the ordinary technicians in the industry according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims (10)

1. A small centrifuge capable of automatically resetting, comprising:

a drive (10) for forming a rotational drive force;

a rotary plate (20) coaxially connected to an output shaft of the driving member (10);

a base (30) connected to the turntable (20); the base (30) is provided with a plurality of mounting parts (31);

a plurality of centrifuge tubes (40) for holding a material to be centrifuged; the centrifugal tube (40) is fixed on the mounting part (31);

wherein the base (30) is provided with at least one iron piece (50), and one side of the driving piece (10) is provided with a magnet (60); when the driving piece (10) stops, the iron piece (50) is attracted with the magnet (60) so that the base (30) stops at the original position.

2. An automatically resettable compact centrifuge as claimed in claim 1, further comprising a retaining plate (70) coaxially attached to one end of the drive member (10); the magnet (60) is eccentrically arranged on the fixing plate (70).

3. The small centrifuge of claim 2, wherein the fixing plate (70) is ring-shaped and has a groove (71) on its periphery; the groove (71) is provided with a fixing hole (711); the magnet (60) is placed in the groove (71) and fixed to the fixing hole (711) by a fastener.

4. The small centrifuge of claim 2, further comprising a metal bushing (80) having one end coaxially connected to the outer circumference of the output shaft of the driving member (10) and the other end coaxially connected to the central shaft hole of the rotating disk (20).

5. The small centrifuge of claim 2, further comprising a plurality of support posts (90) distributed in a circumferential array and fixed to the fixing plate (70) to form a mounting structure of the whole centrifuge.

6. An automatically resettable compact centrifuge as claimed in claim 1, wherein the number of bases (30) is at least two and is arranged in a circumferential array about the output axis of the drive member (10).

7. An automatically resettable miniature centrifuge as claimed in claim 6 wherein said base (30) is rotatably connected at each end to said rotatable disk (20); the iron piece (50) is arranged at the bottom of the base (30).

8. An automatically resettable mini centrifuge as claimed in any of claims 1 to 7, wherein the drive member (10) is a coreless motor; the base (30) and the centrifuge tube (40) are POM parts.

9. An automatically resettable mini centrifuge as claimed in any of claims 1 to 7 wherein the ferrous members (50) are screws; the screws are uniformly distributed at the bottom of the base (30).

10. An automatically resettable compact centrifuge as claimed in any of claims 1 to 7, further comprising:

an optical coupler (101) connected to the driver (10);

a baffle plate (102) arranged on the rotary disc (20);

the optical coupler (101) is matched with the blocking piece (102) to acquire the position information of the turntable (20).

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