CN217594864U

CN217594864U - Centrifugal device for immunoassay

Info

Publication number: CN217594864U
Application number: CN202221201569.0U
Authority: CN
Inventors: 李姗姗
Original assignee: Huamei Medical Technology Co ltd
Current assignee: Huamei Medical Technology Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-10-18
Anticipated expiration: 2032-05-18

Abstract

The utility model provides a centrifugal device for immunoassay. This centrifugal device for immunoassay includes drive assembly and sets up in a plurality of holders of drive assembly ring side, drive assembly includes the rolling disc and sets up in the driving motor of rolling disc middle part downside, driving motor's upper end output end fixed connection is in the bottom of rolling disc, the holder includes that a plurality of annular equidistance that are set up in the connecting rod of rolling disc ring side, the one end fixedly connected with installation piece of rolling disc is kept away from to the connecting rod, one side fixedly connected with support frame of connecting rod is kept away from to the installation piece, the rolling disc is kept away from for U-shaped structure and open end to the support frame, the middle part of support frame is provided with the holding ring, one side fixedly connected with rotation post that the holding ring is close to the support frame, the rotation post rotates with the support frame and is connected. The utility model discloses need not to use limit structure such as electro-magnet, overall structure is simple, and the fault rate is low.

Description

Centrifugal device for immunoassay

Technical Field

The utility model relates to an immunoassay's technical field especially relates to a centrifugal device for immunoassay.

Background

Luminescence immunoassay is a novel ultra-micro analysis technology established by combining luminescence analysis and immunoreaction, and the technology utilizes a chemical or biological luminescence system as an indication system of antigen-antibody reaction, and has high sensitivity of luminescence analysis and high specificity of antigen-antibody reaction.

Publication number CN216063780U discloses a full-automatic chemiluminescence immunoassay appearance centrifugal device, relates to the chemiluminescence immunoassay field, the power distribution box comprises a box body, the motor case has been kept apart through the baffle in the bottom of box, the motor incasement is provided with the control box, the top at baffle center is provided with the carousel, evenly dispersed has the multiunit spout on the carousel, sliding connection has the slider in the spout, the slider passes through the bottom that the connecting axle rotated the connecting tube groove, the top downwardly extending at box inner wall center is provided with the dead lever, be connected with the bull stick between dead lever and the tube groove. Above-mentioned scheme needs fix a position the cell and the reaction tube through the electro-magnet in the in-service use process, leads to overall structure complicacy, and the fault rate is high, awaits improving.

Therefore, it is urgently required to redesign a new centrifugal device for immunoassay to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a centrifugal device for immunoassay to solve the technical problem who proposes in the above-mentioned background art.

The utility model provides a centrifugal device for immunoassay, which comprises a driving component and a plurality of clamping pieces arranged at the ring side of the driving component, wherein the clamping pieces are used for clamping a reaction tube, and the driving component is used for controlling the clamping pieces to rotate so as to centrifuge the content in the reaction tube; the driving assembly comprises a rotating disc and a driving motor arranged on the lower side of the middle part of the rotating disc, and the output end of the upper end of the driving motor is fixedly connected to the bottom of the rotating disc; the clamping piece comprises a plurality of connecting rods which are annular and equidistantly arranged on the ring side of the rotating disc, one end, far away from the rotating disc, of each connecting rod is fixedly connected with an installation block, one side, far away from the connecting rods, of each installation block is fixedly connected with a support frame, the support frame is of a U-shaped structure, the opening end of each support frame is far away from the rotating disc, a positioning ring is arranged in the middle of each support frame, the rotating discs are driven to rotate through a driving motor, then a plurality of connecting rods on the periphery are driven to rotate, and the support frames rotate along with the rotation of the connecting rods; the utility model discloses a reaction tube, including holding ring, support frame, reaction tube, spacing ring, reaction tube, reaction plate, support frame, holding ring, reaction tube, locating ring, support frame, the holding ring is close to one side fixedly connected with rotation post of support frame, the rotation post rotates with the support frame to be connected, the reaction tube is worn to be equipped with at the middle part of holding ring, the ring side of reaction tube is just to the position fixedly connected with spacing ring of holding ring upper end, the spacing ring sets up in the upper portion third to fourth department of reaction tube, and the reaction tube is inserted and is put in the holding ring, fixes a position the reaction tube through the spacing ring, can drive the reaction tube along with the difference of the rotational speed of rotor plate and use the rotation post to take place to rotate as the centre of a circle to improve centrifugal effect.

Optionally, the movable cavity has been just seted up to the position of connecting rod in the inside of rolling disc, the inside in movable cavity is provided with the spring, the ring side of connecting rod is located to the spring housing, the one end fixedly connected with limiting plate of installation piece is kept away from to the connecting rod, along with the rotation of rolling disc, under the effect of centrifugal force, steerable connecting rod removes to the direction of keeping away from the rolling disc to through limiting plate compression spring, make the connecting rod extension, and then make support frame and reaction tube keep away from the rolling disc, further improve centrifugal effect.

Optionally, the lower end of the driving motor is fixedly connected with a bottom plate, a top plate is arranged above the rotating disc, the bottom plate and the top plate are both of an annular structure, a sealing ring is fixedly connected between the bottom plate and the top plate, the device is supported through the bottom plate, and the device is sealed through the top plate and the sealing ring.

Optionally, an arc-shaped groove is formed in the ring side of the top plate, the arc-shaped groove corresponds to the reaction tube in position and is matched with the reaction tube in size, and the reaction tube is conveniently taken out or inserted in the installation through the arc-shaped groove.

Optionally, the bottom of the mounting block is fixedly connected with a supporting column, the lower end of the supporting column is fixedly connected with a moving block, the bottom of the moving block is provided with rotatable balls, the balls are in contact connection with the upper side of the bottom plate and can support the supporting frame, and the fixing effect on the reaction tube is improved.

Optionally, the distance between the lower end of the reaction tube and the bottom plate is 8-10 mm, and the reaction tube is arranged in a suspended manner and is not affected by the bottom plate during rotation.

The utility model has the advantages as follows:

when the centrifugal device for immunoassay is used, a reaction tube is inserted into the positioning ring, and the position of the reaction tube is positioned by the limiting ring, so that the lower part of the reaction tube is positioned below the limiting ring; furthermore, the rotating disc is driven to rotate through the driving motor, so that a plurality of connecting rods on the periphery are driven to rotate, the supporting frame rotates along with the rotation of the connecting rods, and then the limiting ring and the reaction tube in the supporting frame are driven to rotate by taking the rotating disc as a circle center; furthermore, because the spacing ring is connected with the support frame through rotating the post rotation between, and the spacing ring sets up in the upper portion third to the fourth department of reaction tube, and the focus of reaction tube is in the below of spacing ring, can drive the reaction tube along with the difference of the rotational speed of rotor plate and use the rotation post to take place to rotate as the centre of a circle to improve centrifugal effect, need not to use limit structure such as electro-magnet, overall structure is simple, and the fault rate is low.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without inventive efforts.

FIG. 1 is a schematic structural view of a centrifuge device for immunoassay according to the present invention;

FIG. 2 is a schematic view of a connection structure between a rotating disk and a holding member of the centrifugal apparatus for immunoassay according to the present invention;

fig. 3 is a schematic view of the internal structure of a rotary disk of a centrifugal device for immunoassay according to the present invention.

In the figure: 1. rotating the disc; 2. a drive motor; 3. a connecting rod; 4. mounting a block; 5. a support frame; 6. a positioning ring; 7. rotating the column; 8. a reaction tube; 9. a limiting ring; 10. a movable cavity; 11. a spring; 12. a limiting plate; 13. a base plate; 14. a top plate; 15. a seal ring; 16. an arc-shaped slot; 17. a support pillar; 18. a moving block; 19. and a ball.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical" and "outer peripheral surface" are used to indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred must have a specific position, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention.

Furthermore, the term "vertical" or the like does not imply that the components are required to be absolutely horizontal or overhanging, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, a centrifugal device for immunoassay according to the present invention includes a driving assembly and a plurality of holding members disposed at a ring side of the driving assembly; the driving assembly comprises a rotating disc 1 and a driving motor 2 arranged on the lower side of the middle part of the rotating disc 1, and the output end of the upper end of the driving motor 2 is fixedly connected to the bottom of the rotating disc 1; the holder includes that a plurality of annular equidistance that are set up in the connecting rod 3 of 1 ring side of rolling disc, the one end fixedly connected with installation piece 4 of rolling disc 1 is kept away from to connecting rod 3, one side fixedly connected with support frame 5 of connecting rod 3 is kept away from to installation piece 4, support frame 5 is kept away from rolling disc 1 for U-shaped structure and open end, the middle part of support frame 5 is provided with holding ring 6, one side fixedly connected with rotation post 7 that holding ring 6 is close to support frame 5, rotation post 7 rotates with support frame 5 to be connected, reaction tube 8 wears to be equipped with at the middle part of holding ring 6, the position fixedly connected with spacing ring 9 to holding ring 6 upper end is faced to the ring side of reaction tube 8, spacing ring 9 sets up in reaction tube 8's upper portion third to fourth department.

The clamping piece is used for clamping the reaction tube 8, and the driving assembly is used for controlling the clamping piece to rotate so as to centrifuge the content of the reaction tube 8; inserting the reaction tube 8 into the positioning ring 6, and positioning the position of the reaction tube 8 through the limiting ring 9 to ensure that the lower part of the reaction tube is positioned below the limiting ring 9; furthermore, the driving motor 2 drives the rotating disc 1 to rotate, so as to drive the plurality of connecting rods 3 around to rotate, the support frame 5 rotates along with the rotation of the connecting rods 3, and then the limiting ring 9 and the reaction tube 8 inside are driven to rotate by taking the rotating disc 1 as a circle center; further, because spacing ring 9 and support frame 5 rotate through rotating post 7 between be connected, and spacing ring 9 sets up in the upper one third to quarter department of reaction tube 8, and the focus of reaction tube 8 is in the below of spacing ring 9, can drive reaction tube 8 along with the difference of the rotational speed of rotor plate and use rotation post 7 to take place to rotate as the centre of a circle to improve centrifugal effect.

Specifically, a movable cavity 10 is formed in the rotating disc 1 and faces the position of the connecting rod 3, a spring 11 is arranged in the movable cavity 10, the spring 11 is sleeved on the annular side of the connecting rod 3, and a limiting plate 12 is fixedly connected to one end, far away from the mounting block 4, of the connecting rod 3.

Wherein, along with the rotation of rolling disc 1, under the effect of centrifugal force, steerable connecting rod 3 removes to the direction of keeping away from rolling disc 1 to through limiting plate 12 compression spring 11, make connecting rod 3 extension, and then make support frame 5 and reaction tube 8 keep away from rolling disc 1, further improve centrifugal effect.

In this embodiment, a bottom plate 13 is fixedly connected to a lower end of the driving motor 2, a top plate 14 is disposed above the rotary disc 1, the bottom plate 13 and the top plate 14 are both of an annular structure, and a sealing ring 15 is fixedly connected between the bottom plate 13 and the top plate 14.

The device is supported by the bottom plate 13 and sealed by the top plate 14 and the seal ring 15.

In this embodiment, the top plate 14 is provided with an arc-shaped slot 16 at the ring side, and the arc-shaped slot 16 corresponds to the reaction tube 8 and has a size matched with the reaction tube 8.

Wherein the reactor tube 8 is easily taken out or installed and inserted through the arc-shaped slot 16.

In this embodiment, a supporting column 17 is fixedly connected to the bottom of the mounting block 4, a moving block 18 is fixedly connected to the lower end of the supporting column 17, a rotatable ball 19 is arranged at the bottom of the moving block 18, and the ball 19 is in contact connection with the upper side of the bottom plate 13.

Wherein, set up support column 17, movable block 18 and ball 19, can support frame 5, improve the fixed effect to reaction tube 8.

In this embodiment, the lower ends of the reaction tubes 8 are spaced from the bottom plate 13 by a distance of 8 to 10 mm.

Wherein, the reaction tube 8 is arranged in a suspension way and is not influenced by the bottom plate 13 when rotating.

The working principle is as follows: when in use, the reaction tube 8 is inserted into the positioning ring 6, and the position of the reaction tube 8 is positioned by the limiting ring 9, so that the lower part of the reaction tube is positioned below the limiting ring 9; furthermore, the driving motor 2 drives the rotating disc 1 to rotate, so as to drive the plurality of connecting rods 3 around to rotate, the support frame 5 rotates along with the rotation of the connecting rods 3, and further drives the limiting ring 9 and the reaction tube 8 inside to rotate by taking the rotating disc 1 as a circle center; furthermore, the limiting ring 9 is rotatably connected with the support frame 5 through the rotating column 7, the limiting ring 9 is arranged at one third to one fourth of the upper part of the reaction tube 8, the center of gravity of the reaction tube 8 is positioned below the limiting ring 9, and the reaction tube 8 can be driven to rotate by taking the rotating column 7 as the center of a circle along with the difference of the rotating speed of the rotating plate, so that the centrifugal effect is improved; furthermore, along with the rotation of the rotating disc 1, under the action of centrifugal force, the connecting rod 3 can be controlled to move towards the direction away from the rotating disc 1, so that the spring 11 is compressed through the limiting plate 12, the connecting rod 3 extends, the supporting frame 5 and the reaction tube 8 are further away from the rotating disc 1, and the centrifugal effect is further improved; after a period of time, reaction tube 8 that the centrifugation was accomplished, accessible arc wall 16 take out reaction tube 8, through above-mentioned scheme, need not to use limit structure such as electro-magnet, overall structure is simple, and the fault rate is low.

The above-mentioned embodiment of the present invention is only, and not the scope of the patent of the present invention is limited, all the equivalent structures or equivalent processes made by the contents of the specification and the drawings are utilized, or directly or indirectly applied to other related technical fields, and all the same principles are included in the patent protection scope of the present invention.

Claims

1. A centrifugal device for immunoassay is characterized by comprising a driving component and a plurality of clamping pieces arranged on the ring side of the driving component;

the driving assembly comprises a rotating disc (1) and a driving motor (2) arranged on the lower side of the middle part of the rotating disc (1), and the output end of the upper end of the driving motor (2) is fixedly connected to the bottom of the rotating disc (1);

the holder includes that a plurality of annular equidistance that are set up in connecting rod (3) of rolling disc (1) ring side, the one end fixedly connected with installation piece (4) of rolling disc (1) are kept away from in connecting rod (3), one side fixedly connected with support frame (5) of connecting rod (3) are kept away from in installation piece (4), rolling disc (1) is kept away from for U-shaped structure and open end in support frame (5), the middle part of support frame (5) is provided with holding ring (6), one side fixedly connected with rotation post (7) that holding ring (6) are close to support frame (5), rotation post (7) rotate with support frame (5) and are connected, reaction tube (8) are worn to be equipped with at the middle part of holding ring (6), the ring side of reaction tube (8) is just to position fixedly connected with spacing ring (9) of holding ring (6) upper end, spacing ring (9) set up in the upper portion third to fourth department of reaction tube (8).

2. The centrifugal device for immunoassay according to claim 1, wherein a movable cavity (10) is opened in the rotating disk (1) just opposite to the connecting rod (3), a spring (11) is arranged in the movable cavity (10), the spring (11) is sleeved on the ring side of the connecting rod (3), and a limiting plate (12) is fixedly connected to one end of the connecting rod (3) far away from the mounting block (4).

3. The centrifugal device for immunoassay according to claim 1, wherein a bottom plate (13) is fixedly connected to the lower end of the driving motor (2), a top plate (14) is arranged above the rotating disc (1), the bottom plate (13) and the top plate (14) are both in an annular structure, and a sealing ring (15) is fixedly connected between the bottom plate (13) and the top plate (14).

4. The centrifuge device for immunoassay according to claim 3, wherein the top plate (14) is provided with an arc-shaped groove (16) at the ring side, and the arc-shaped groove (16) is corresponding to the reaction tube (8) in position and matched with the reaction tube (8) in size.

5. The centrifugal device for immunoassay according to claim 4, wherein the bottom of the mounting block (4) is fixedly connected with a supporting column (17), the lower end of the supporting column (17) is fixedly connected with a moving block (18), the bottom of the moving block (18) is provided with a rotatable ball (19), and the ball (19) is in contact connection with the upper side of the bottom plate (13).

6. The centrifuge device for immunoassay according to claim 1, wherein the lower end of the reaction tube (8) is spaced from the bottom plate (13) by a distance of 8 to 10 mm.