阅读说明：本技术 一种实验室用升降型高效细胞分离离心机 (Laboratory is with high-efficient cell separation centrifuge of lift type ) 是由 李秀萍 曹秀莲 张彦广 王燕峰 郝改风 张永刚 李明亮 路德成 元玉碧 李文欣 于 2020-12-24 设计创作，主要内容包括：本发明属于生物化学实验设备领域,尤其是一种实验室用升降型高效细胞分离离心机,针对现有的在对细胞进行离心作用时,经常会在离心机启动和将要停止时发生晃动,存在分离操作完成后刹车降速不均匀,且试管在进行取放时不够方便的问题,现提出如下方案,其包括箱体,所述箱体的顶部开设有开口,箱体的底部内壁上固定安装有电机,电机的输出轴上固定安装有第一转杆,第一转杆的外侧滑动套设有移动座,移动座的顶部开设有梯形槽,梯形槽的内壁上开设有多个试管孔。本发明结构简单,使用方便,能够对试管进行遮盖同时在对试管进行升降移出的同时带动盖板进行翻盖,从而方便人们进行拿取和对箱体的密封。(The invention belongs to the field of biochemical experimental equipment, and particularly relates to a lifting type high-efficiency cell separation centrifugal machine for a laboratory, aiming at the problems that the centrifugal machine is frequently shaken when being started and is about to stop when the centrifugal action is carried out on cells, the braking and the speed reduction are not uniform after the separation operation is finished, and test tubes are not convenient enough when being taken and placed. The test tube overturning device is simple in structure and convenient to use, and can cover the test tube and drive the cover plate to overturn while lifting and moving out the test tube, so that people can take the test tube and seal the box body conveniently.)

1. The utility model provides a laboratory is with high-efficient cell separation centrifuge of lift type, includes box (1), its characterized in that, the opening has been seted up at the top of box (1), and fixed mounting has motor (2) on the bottom inner wall of box (1), and fixed mounting has first bull stick (3) on the output shaft of motor (2), and the outside slip cap of first bull stick (3) is equipped with removes seat (4), and trapezoidal groove (5) have been seted up at the top of removing seat (4), has seted up a plurality of test tube holes (6) on the inner wall of trapezoidal groove (5), the top of box (1) is rotated and is connected with two apron (13) that the symmetry set up, and two apron (13) all rotate with removing seat (4) and be connected, the outside of first bull stick (3) is rotated the cap and is equipped with movable plate (18), and movable plate (18) and the inner wall sliding connection of box (1), and the outside of first bull stick (3) is rotated the, the equal fixed mounting in both sides of location case (20) has positioning seat (23) that the symmetry set up, and the top fixed mounting of movable plate (18) has wedge kicking block (24) that two symmetries set up, rotates on positioning seat (23) and is connected with second bull stick (25), and the equal sliding connection in one end that two second bull sticks (25) kept away from each other has connecting rod (27), and the equal fixed mounting in one end that two connecting rods (27) kept away from each other has wedge slider (30), and wedge slider (30) cooperate with wedge kicking block (24), the top fixed mounting of movable plate (18) has pull rod (33) that two symmetries set up, and the bottom of removing seat (4) is rotated and is connected with commentaries on classics board (34), commentaries on classics board (34) and two pull.

2. The laboratory lifting type cytospin according to claim 1, wherein a plurality of fixing seats (7) are fixedly installed on the inner wall of the trapezoidal groove (5), a push rod (8) is slidably connected to the fixing seats (7), a plurality of baffles (12) are rotatably connected to the inner wall of the trapezoidal groove (5), and the baffles (12) are rotatably connected to the push rod (8).

3. The laboratory lifting type high-efficiency cell separation centrifuge as claimed in claim 1, wherein the top end of the first rotating rod (3) is arranged in a circular truncated cone shape, a plurality of buffer grooves (9) are formed in the outer side of the circular truncated cone shape, positioning rods (10) are fixedly mounted on the inner wall of each buffer groove (9), moving blocks (11) are connected onto the positioning rods (10) in a sliding mode, and the moving blocks (11) are rotatably connected with corresponding push rods (8).

4. The laboratory lifting type high-efficiency cell separation centrifuge as claimed in claim 1, wherein moving grooves (14) are formed in one side of each of the two cover plates (13) close to each other, slide bars are fixedly mounted on the inner walls of the moving grooves (14), moving rods (15) are slidably connected to the slide bars, and the moving rods (15) are rotatably connected with the moving base (4).

5. The laboratory lifting type high-efficiency cell separation centrifuge as claimed in claim 1, wherein sliding grooves (16) are formed in inner walls of two sides of the box body (1), fixing rods (17) are fixedly mounted on inner walls of the sliding grooves (16), the moving plate (18) is slidably connected with the two fixing rods (17), a return spring (19) is fixedly mounted on an inner wall of the bottom of the sliding groove (16), and a top end of the return spring (19) is fixedly connected with the moving plate (18).

6. The laboratory lifting type high-efficiency cell separation centrifuge as claimed in claim 1, wherein a rotation hole is formed in the inner wall of the bottom of the trapezoidal groove (5), the rotation hole is slidably connected with the first rotating rod (3), the limiting grooves (31) are formed in both sides of the first rotating rod (3), the inner walls of both sides of the rotation hole are fixedly provided with limiting blocks (32), and the limiting blocks (32) are slidably connected with the corresponding limiting grooves (31).

7. The laboratory lifting type high-efficiency cell separation centrifuge as claimed in claim 1, wherein a first bevel gear (21) is fixedly sleeved outside the first rotating rod (3), one ends of the two second rotating rods (25) close to each other penetrate through the positioning box (20) and are fixedly provided with second bevel gears (22), and the first bevel gear (21) is meshed with the two second bevel gears (22).

8. The laboratory lifting type high-efficiency cell separation centrifuge as claimed in claim 1, wherein one end of each of the two second rotating rods (25) which is far away from each other is provided with a rotating groove (26), the rotating grooves (26) are movably connected with the connecting rod (27), the inner wall of each rotating groove (26) is fixedly provided with a positioning block (29), the outer side of each connecting rod (27) is provided with a threaded groove (28), and each threaded groove (28) is slidably connected with the corresponding positioning block (29).

9. The laboratory lifting type high-efficiency cell separation centrifuge as claimed in claim 1, wherein the bottom of the moving seat (4) is provided with an annular chute, the top of the rotating plate (34) is fixedly provided with two symmetrically arranged fixed blocks, and the two fixed blocks are slidably connected with the annular chute.

10. The laboratory lifting type high-efficiency cell separation centrifuge as claimed in claim 9, wherein the inner walls of the two sides of the annular chute are respectively provided with a positioning groove, the two sides of the fixing block are respectively fixedly provided with a limiting rod, and the limiting rods are slidably connected with the positioning grooves.

Technical Field

The invention relates to the technical field of biochemical experimental equipment, in particular to a lifting type high-efficiency cell separation centrifuge for a laboratory.

Background

The centrifugal machine is a device for separating suspended matters in liquid by using centrifugal force generated during high-speed rotation, and is widely applied to various laboratories at present. However, the conventional centrifuges have poor separation capability for suspensions or culture solutions with small density difference, and particularly, the separation efficiency of the conventional centrifuges is difficult to achieve when living cells with biological activity need to be separated. For example, conventional centrifuges cannot perform well for separating various cells in blood, cells are too stressed to be broken due to too high rotation speed, and separation is not good or fails due to too low rotation speed or uneven rotation acceleration. The cell centrifuge is a centrifugal separation device for microbial experiments emerging in recent years, is specially designed for separation operation of suspension with small density difference, is mainly applied to the technical fields of conventional biochemical experiments, agricultural cell engineering breeding, prevention and treatment and research of plant diseases and insect pests, animal pharmacology experiments, separation, purification, strengthening and rejuvenation of fungi and edible fungi, separation and propagation of yeast and bacteria, medical clinical diagnosis and treatment, stem cell separation and the like, and is special equipment used in the industries of agriculture and animal husbandry, biopharmaceuticals, medicine and the like.

When the existing cell centrifuge performs centrifugal action on cell suspension, mechanical shaking often occurs when a centrifuge rotor is started and is about to stop, and the risk of splashing liquid in a test tube due to the mechanical shaking exists, so that the risk of microbial contamination in a laboratory is increased; or the liquid in the test tube can be disturbed due to shaking, so that the liquid which is already centrifugally stratified is remixed, and the centrifugal experiment fails. The conventional cell centrifuge has the defects that the braking and the speed reduction are not uniform after the separation operation is finished, so that the stress change of liquid in a test tube is relatively obvious, the liquid layers flow relatively to mix, the cell separation efficiency is reduced, and even the separation experiment fails. And the defect that the test tube is not convenient to take and place is also existed. Therefore, the lifting type high-efficiency cell separation centrifuge for the laboratory is provided for overcoming the defects.

Its purpose is when carrying out centrifugal operation to cell culture liquid in order to solve current cell centrifuge, often can start at the centrifuge rotor and will stop the time take place to rock, and it is inhomogeneous to have the brake deceleration after the separation operation is accomplished, and has the shortcoming of not convenient enough when the operation is got to the test tube of putting, and the laboratory that provides is with high-efficient cell separation centrifuge of lift type.

Disclosure of Invention

The invention aims to solve the problems that a centrifugal machine frequently shakes when being started and about to stop when cells are centrifuged, the braking and the speed reduction are not uniform after separation operation is finished, and test tubes are not convenient to take and place.

In order to achieve the purpose, the invention adopts the following technical scheme:

a lift type high-efficiency cell separation centrifugal machine for laboratories comprises a box body, wherein an opening is formed in the top of the box body, a motor is fixedly mounted on the inner wall of the bottom of the box body, a first rotating rod is fixedly mounted on an output shaft of the motor, a moving seat is slidably sleeved on the outer side of the first rotating rod, a trapezoidal groove is formed in the top of the moving seat, a plurality of test tube holes are formed in the inner wall of the trapezoidal groove, two symmetrically-arranged cover plates are rotatably connected to the top of the box body and rotatably connected with the moving seat, a moving plate is rotatably sleeved on the outer side of the first rotating rod and slidably connected with the inner wall of the box body, a positioning box is rotatably sleeved on the outer side of the first rotating rod, symmetrically-arranged positioning seats are fixedly mounted on two sides of the positioning box, two symmetrically-arranged wedge-shaped ejector blocks are fixedly mounted on the top, the equal sliding connection of one end that two second bull sticks kept away from each other has the connecting rod, and the equal fixed mounting of one end that two connecting rods kept away from each other has wedge slider, and wedge slider and wedge kicking block cooperate, the top fixed mounting of movable plate has the pull rod that two symmetries set up, and the bottom of removing the seat is rotated and is connected with the commentaries on classics board, commentaries on classics board and two pull rod fixed connection.

Preferably, fixed mounting has a plurality of fixing bases on the inner wall of dovetail groove, and sliding connection has the push rod on the fixing base, rotates on the inner wall of dovetail groove to be connected with a plurality of baffles, and the baffle rotates with the push rod to be connected, and the push rod of removal covers the test tube hole through the baffle.

Preferably, the top end of the first rotating rod is arranged in a circular truncated cone, a plurality of buffer grooves are formed in the outer side of the circular truncated cone, positioning rods are fixedly mounted on the inner walls of the buffer grooves, moving blocks are connected to the positioning rods in a sliding mode and are connected with corresponding push rods in a rotating mode, and the moving seat drives the push rods to move through the rotating connection of the push rods and the moving blocks.

Preferably, the shifting chute has all been seted up to one side that two apron are close to each other, and fixed mounting has the slide bar on the inner wall of shifting chute, and sliding connection has the carriage release lever on the slide bar, and the carriage release lever rotates with the carriage release seat to be connected, and the carriage release seat can drive the apron through the sliding connection of carriage release lever and slide bar and carry out the angle change to seal the box.

Preferably, the sliding grooves are formed in the inner walls of the two sides of the box body, the fixing rods are fixedly mounted on the inner walls of the sliding grooves, the movable plate is connected with the two fixing rods in a sliding mode, the inner wall of the bottom of the sliding groove is fixedly provided with the reset spring, the top end of the reset spring is fixedly connected with the movable plate, and the reset spring can support and reset the movable plate.

Preferably, seted up on the bottom inner wall of dovetail groove and rotated the hole, rotated hole and first bull stick sliding connection, and the spacing groove has all been seted up to the both sides of first bull stick, and equal fixed mounting has the stopper on the both sides inner wall in rotation hole, stopper and corresponding spacing groove sliding connection, and pivoted first bull stick can drive the removal seat through stopper and spacing groove and rotate.

Preferably, the fixed cover in the outside of first bull stick is equipped with first bevel gear, and the one end that two second bull sticks are close to each other all runs through the location case and fixed mounting has second bevel gear, and first bevel gear meshes with two second bevel gears mutually, and pivoted first bull stick can drive the second bull stick through the meshing of first bevel gear and second bevel gear and rotate.

Preferably, the rotation groove has all been seted up to the one end that two second bull sticks kept away from each other, rotation groove and connecting rod swing joint, and fixed mounting has the locating piece on the inner wall in rotation groove, and the thread groove has been seted up in the outside of connecting rod, thread groove and the locating piece sliding connection that corresponds, and pivoted second bull stick can drive the connecting rod through the sliding connection of locating piece and thread groove and remove.

Preferably, the bottom of moving the seat has seted up annular spout, changes the top fixed mounting of board and has two fixed blocks that the symmetry set up, two fixed blocks and annular spout sliding connection, and two fixed blocks can carry on spacingly with the sliding connection of annular spout to changeing the board.

Preferably, the locating slot has all been seted up on the both sides inner wall of annular spout, and the equal fixed mounting in both sides of fixed block has the gag lever post, gag lever post and locating slot sliding connection, and the sliding connection of gag lever post and locating slot can fix a position the pull rod through the fixed block.

According to the lifting type efficient cell separation centrifuge for the laboratory, the first bevel gear is meshed with the second bevel gear, so that the first rotating rod can be rotated to drive the second rotating rod to rotate, the connecting rod is driven to move through the sliding connection of the threaded groove and the positioning block, and the moving plate is driven to move downwards;

because the push rod and the first rotating rod are arranged at an angle and the push rod is rotationally connected with the baffle plate, the movable moving seat can drive the baffle plate to change the angle, so that the test tube hole is covered, and the cell sap is prevented from splashing;

because the movable rod is connected with the rotation of the movable seat and the movable rod is connected with the sliding rod in a sliding manner, the movable seat can drive the cover plate to change the angle, and the box body is covered and protected.

The test tube overturning device is simple in structure and convenient to use, and can cover the test tube and drive the cover plate to overturn while lifting and moving out the test tube, so that people can take the test tube and seal the box body conveniently.

Drawings

FIG. 1 is a schematic structural diagram of a lift-type high-efficiency cell separation centrifuge for a laboratory according to the present invention;

FIG. 2 is a top view of a lift-type high efficiency cell separation centrifuge for a laboratory according to the present invention;

FIG. 3 is a schematic structural diagram of part A of a lift-type high-efficiency cell separation centrifuge for a laboratory according to the present invention;

FIG. 4 is a schematic structural diagram of part B of a lift-type high-efficiency cell separation centrifuge for a laboratory according to the present invention;

fig. 5 is a schematic structural diagram of a part C of a lift-type high-efficiency cell separation centrifuge for a laboratory according to the present invention.

In the figure: the testing device comprises a box body 1, a motor 2, a first rotating rod 3, a moving seat 4, a trapezoid groove 5, a test tube hole 6, a fixed seat 7, a push rod 8, a buffer groove 9, a positioning rod 10, a moving block 11, a baffle 12, a cover plate 13, a moving groove 14, a moving rod 15, a sliding groove 16, a fixed rod 17, a moving plate 18, a reset spring 19, a positioning box 20, a first bevel gear 21, a second bevel gear 22, a positioning seat 23, a wedge-shaped top block 24, a second rotating rod 25, a rotating groove 26, a connecting rod 27, a thread groove 28, a positioning block 29, a wedge-shaped sliding block 30, a limiting groove 31, a limiting block 32, a pull rod 33 and a rotating plate.

Detailed Description

The technical solutions 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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1

Referring to fig. 1-5, a lift type high efficiency cell separation centrifuge for laboratory use comprises a box body 1, an opening is provided at the top of the box body 1, a motor 2 is fixedly installed on the inner wall of the bottom of the box body 1, a first rotating rod 3 is fixedly installed on the output shaft of the motor 2, a moving seat 4 is slidably sleeved outside the first rotating rod 3, a trapezoidal groove 5 is provided at the top of the moving seat 4, a plurality of test tube holes 6 are provided on the inner wall of the trapezoidal groove 5, two symmetrically arranged cover plates 13 are rotatably connected to the top of the box body 1, both the cover plates 13 are rotatably connected with the moving seat 4, a moving plate 18 is rotatably sleeved outside the first rotating rod 3, the moving plate 18 is slidably connected with the inner wall of the box body 1, a positioning box 20 is rotatably sleeved outside the first rotating rod 3, positioning seats 23 symmetrically arranged are fixedly installed on both sides of the positioning box 20, two symmetrically arranged wedge-shaped top blocks, the positioning seat 23 is connected with a second rotating rod 25 in a rotating mode, the two second rotating rods 25 are connected with connecting rods 27 in an equal sliding mode at one ends far away from each other, wedge-shaped sliders 30 are fixedly mounted at one ends far away from each other of the two connecting rods 27, the wedge-shaped sliders 30 are matched with the wedge-shaped top blocks 24, the top of the movable plate 18 is fixedly provided with pull rods 33 which are symmetrically arranged, the bottom of the movable seat 4 is connected with a rotating plate 34 in a rotating mode, and the rotating plate 34 is fixedly connected with the two pull rods 33.

In the invention, a plurality of fixing seats 7 are fixedly arranged on the inner wall of the trapezoidal groove 5, a push rod 8 is connected on the fixing seats 7 in a sliding manner, a plurality of baffles 12 are rotatably connected on the inner wall of the trapezoidal groove 5, and the baffles 12 are rotatably connected with the push rod 8.

In the invention, the top end of the first rotating rod 3 is arranged in a circular truncated cone shape, a plurality of buffer grooves 9 are formed in the outer side of the circular truncated cone shape, positioning rods 10 are fixedly installed on the inner walls of the buffer grooves 9, moving blocks 11 are connected onto the positioning rods 10 in a sliding mode, and the moving blocks 11 are connected with corresponding push rods 8 in a rotating mode.

In the invention, the two cover plates 13 are provided with moving grooves 14 at the sides close to each other, sliding rods are fixedly arranged on the inner walls of the moving grooves 14, the sliding rods are connected with moving rods 15 in a sliding manner, and the moving rods 15 are rotatably connected with the moving base 4.

In the invention, sliding grooves 16 are respectively formed on the inner walls of two sides of the box body 1, fixed rods 17 are fixedly arranged on the inner walls of the sliding grooves 16, a moving plate 18 is slidably connected with the two fixed rods 17, a return spring 19 is fixedly arranged on the inner wall of the bottom of the sliding groove 16, and the top end of the return spring 19 is fixedly connected with the moving plate 18.

In the invention, the inner wall of the bottom of the trapezoidal groove 5 is provided with a rotating hole, the rotating hole is connected with the first rotating rod 3 in a sliding manner, the two sides of the first rotating rod 3 are both provided with limiting grooves 31, the inner walls of the two sides of the rotating hole are both fixedly provided with limiting blocks 32, and the limiting blocks 32 are connected with the corresponding limiting grooves 31 in a sliding manner.

In the invention, a first bevel gear 21 is fixedly sleeved on the outer side of the first rotating rod 3, one ends of the two second rotating rods 25 close to each other penetrate through the positioning box 20 and are fixedly provided with second bevel gears 22, and the first bevel gear 21 is meshed with the two second bevel gears 22.

In the invention, the ends of the two second rotating rods 25, which are far away from each other, are respectively provided with a rotating groove 26, the rotating grooves 26 are movably connected with a connecting rod 27, the inner wall of each rotating groove 26 is fixedly provided with a positioning block 29, the outer side of the connecting rod 27 is provided with a threaded groove 28, and the threaded groove 28 is in sliding connection with the corresponding positioning block 29.

In the invention, the bottom of the movable seat 4 is provided with an annular chute, the top of the rotating plate 34 is fixedly provided with two symmetrically arranged fixed blocks, and the two fixed blocks are in sliding connection with the annular chute.

In the invention, the inner walls of two sides of the annular chute are respectively provided with a positioning groove, two sides of the fixed block are respectively and fixedly provided with a limiting rod, and the limiting rods are in sliding connection with the positioning grooves.

Example 2

Referring to fig. 1-5, a lift type high efficiency cell separation centrifuge for laboratory use comprises a box body 1, an opening is arranged at the top of the box body 1, a motor 2 is welded on the inner wall of the bottom of the box body 1, a first rotating rod 3 is welded on the output shaft of the motor 2, a moving seat 4 is slidably sleeved outside the first rotating rod 3, a trapezoidal groove 5 is arranged at the top of the moving seat 4, a plurality of test tube holes 6 are arranged on the inner wall of the trapezoidal groove 5, two symmetrically arranged cover plates 13 are rotatably connected to the top of the box body 1, both the cover plates 13 are rotatably connected with the moving seat 4, a moving plate 18 is rotatably sleeved outside the first rotating rod 3, the moving plate 18 is slidably connected with the inner wall of the box body 1, a positioning box 20 is rotatably sleeved outside the first rotating rod 3, positioning seats 23 symmetrically arranged are welded on both sides of the positioning box 20, two symmetrically arranged wedge-shaped top, the positioning seat 23 is connected with a second rotating rod 25 in a rotating mode, one end of each second rotating rod 25, which is far away from each other, is connected with a connecting rod 27 in a sliding mode, one end of each connecting rod 27, which is far away from each other, is welded with a wedge-shaped sliding block 30, the wedge-shaped sliding block 30 is matched with a wedge-shaped top block 24, the top of the movable plate 18 is welded with a pull rod 33, which is symmetrically arranged, the bottom of the movable seat 4 is connected with a rotating plate 34 in a rotating mode, and the rotating plate 34.

In the invention, a plurality of fixing seats 7 are welded on the inner wall of the trapezoidal groove 5, a push rod 8 is connected on the fixing seats 7 in a sliding manner, a plurality of baffle plates 12 are connected on the inner wall of the trapezoidal groove 5 in a rotating manner, the baffle plates 12 are connected with the push rod 8 in a rotating manner, and the movable push rod 8 covers the test tube hole 6 through the baffle plates 12.

In the invention, the top end of the first rotating rod 3 is arranged in a circular truncated cone shape, a plurality of buffer grooves 9 are formed in the outer side of the circular truncated cone shape, positioning rods 10 are welded on the inner walls of the buffer grooves 9, moving blocks 11 are connected onto the positioning rods 10 in a sliding mode, the moving blocks 11 are connected with corresponding push rods 8 in a rotating mode, and the moving base 4 drives the push rods 8 to move through the rotating connection of the push rods 8 and the moving blocks 11.

In the invention, the two cover plates 13 are provided with moving grooves 14 on the sides close to each other, sliding rods are welded on the inner walls of the moving grooves 14, the sliding rods 15 are connected with the moving rods in a sliding manner, the moving rods 15 are rotatably connected with the moving seat 4, and the moving seat 4 can drive the cover plates 13 to change the angle through the sliding connection of the moving rods 15 and the sliding rods, so that the box body 1 is sealed.

In the invention, sliding grooves 16 are respectively formed in the inner walls of two sides of the box body 1, fixed rods 17 are welded on the inner walls of the sliding grooves 16, the moving plate 18 is connected with the two fixed rods 17 in a sliding mode, a return spring 19 is welded on the inner wall of the bottom of each sliding groove 16, the top end of each return spring 19 is fixedly connected with the moving plate 18, and each return spring 19 can support and reset the moving plate 18.

In the invention, the inner wall of the bottom of the trapezoidal groove 5 is provided with a rotating hole, the rotating hole is connected with the first rotating rod 3 in a sliding manner, the two sides of the first rotating rod 3 are provided with the limiting grooves 31, the inner walls of the two sides of the rotating hole are welded with the limiting blocks 32, the limiting blocks 32 are connected with the corresponding limiting grooves 31 in a sliding manner, and the rotating first rotating rod 3 can drive the moving seat 4 to rotate through the limiting blocks 32 and the limiting grooves 31.

In the invention, a first bevel gear 21 is fixedly sleeved on the outer side of the first rotating rod 3, one ends of the two second rotating rods 25, which are close to each other, penetrate through the positioning box 20 and are welded with the second bevel gears 22, the first bevel gear 21 is meshed with the two second bevel gears 22, and the rotating first rotating rod 3 can drive the second rotating rods 25 to rotate through the meshing of the first bevel gear 21 and the second bevel gear 22.

In the invention, the ends of the two second rotating rods 25, which are far away from each other, are respectively provided with a rotating groove 26, the rotating grooves 26 are movably connected with a connecting rod 27, the inner wall of each rotating groove 26 is welded with a positioning block 29, the outer side of each connecting rod 27 is provided with a threaded groove 28, the threaded grooves 28 are in sliding connection with the corresponding positioning blocks 29, and the rotating second rotating rods 25 can drive the connecting rods 27 to move through the sliding connection between the positioning blocks 29 and the threaded grooves 28.

In the invention, the bottom of the movable seat 4 is provided with an annular sliding groove, the top of the rotating plate 34 is welded with two symmetrically arranged fixed blocks, the two fixed blocks are in sliding connection with the annular sliding groove, and the two fixed blocks are in sliding connection with the annular sliding groove to limit the rotating plate 34.

In the invention, the inner walls of the two sides of the annular chute are respectively provided with a positioning groove, the two sides of the fixing block are respectively welded with a limiting rod, the limiting rods are connected with the positioning grooves in a sliding manner, and the sliding connection of the limiting rods and the positioning grooves can position the pull rod 33 through the fixing block.

In the invention, a cell test tube needing centrifugation is placed in a test tube hole 6, a power switch is arranged on a motor 2, the switch of the motor 2 is turned on, an output shaft of the motor 2 drives a first rotating rod 3 to rotate, the first rotating rod 3 drives a first conical gear 21 to rotate, the first conical gear 21 drives a second conical gear 22 to rotate, the second conical gear 22 drives a second rotating rod 25 to rotate, due to the sliding connection of a positioning block 29 and a thread groove 28, the rotating second rotating rod 25 can drive a connecting rod 27 to move, the two moving connecting rods 27 push a moving plate 18 to move downwards through the matching of a wedge-shaped sliding block 30 and a wedge-shaped top block 24, the moving plate 18 drives a pull rod 33 to move downwards, the pull rod 33 drives a rotating plate 34 to move, the rotating plate 34 drives a moving seat 4 to move downwards through the rotating connection with the moving seat 4, so that the first rotating rod 3 moves upwards relative to the moving seat 4, and drives a push rod 8 to move upwards through the sliding connection, push rod 8 drives baffle 12 and forms the angular rotation, thereby cover the test tube, prevent that different cell sap from splashing the in-tube, the removal seat 4 that removes simultaneously drives apron 13 through the sliding connection of carriage release lever 15 with the slide bar and carries out the angle change, and then drive apron 13 and cover box 1, the first bull stick 3 of pivoted drives removal seat 4 through the sliding connection of spacing groove 31 with stopper 32 and rotates simultaneously, and then carry out centrifugal action to the cell test tube in the test tube hole 6, after centrifugal action is accomplished, reset spring 19 drives removal seat 4 rebound through promoting movable plate 18, drive apron 13 simultaneously and open, make things convenient for people to use.

Experimental example I, isolation experiment of aging Yeast

The method comprises the following steps:

1. carrying out shake culture on the yeast at 30 ℃ for more than 5 generations, wherein each generation adopts a culture solution expanding culture mode.

2. The separation layer was centrifuged and the state of the separation layer was recorded. The culture solution is firstly taken and filtered, 10ml of two parts are taken, 5 minutes are carried out at 4000rpm, the upper layer turbid solution is poured out, 10ml of physiological saline is used for washing, and then the culture solution is centrifuged at 5000rpm for 5 minutes.

3. Transferring the lower layer thallus, centrifuging, separating, adding the cell layer into a volumetric flask, and metering to 1ml

4. Melan staining

Counting the dead yeast by a blood counting plate and microscopic examination. See table 1 below.

Second example of the experiment for separating erythrocyte

Method and procedure

1. 4ml of the separated red blood cells are taken and diluted by adding 16ml of physiological saline.

2. 5ml were centrifuged at 6000rpm1 min.

3. Separating the supernatant with a small syringe

The supernatant was detected at 541nm by spectroscopic measurement, and the results are shown in Table 2 below.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.