Centrifugal device for biological reagent processing

Abstract

The utility model relates to the technical field of biological reagent processing, and discloses a centrifugal device for biological reagent processing, which comprises a centrifugal machine, a support plate is fixedly arranged in the centrifugal machine, a fixed cylinder is fixedly arranged at the top of the support plate, a central column is movably arranged in the fixed cylinder, and a plurality of blades are arranged on the central column. And a limiting column is fixedly mounted on the outer surface of the central column. Compared with a traditional device, through cooperation of the coil, the first iron block and the remote power-off control switch, in the rotating process of the fixing cylinder, centrifugal force enables the limiting frame to slide, a second spring pushes the limiting block to enter a limiting workpiece, limiting and fixing are achieved, it is guaranteed that all components are stably connected when equipment rotates at a high speed, and the service life of the equipment is prolonged. And meanwhile, the electromagnet is controlled through a remote power failure and power supply recovery instruction, and the electromagnet adsorbs the second iron block to pull the limiting frame during power failure.

Description

TECHNICAL FIELD

[0001] The utility model relates to biological reagent processing technical field more specifically, the utility model relates to a centrifugal device for biological reagent processing. BACKGROUND

[0002] The centrifuge utilizes the centrifugal force produced by rotation to separate substances of different densities, sizes and sedimentation coefficients in a mixture. In biological reagent processing, when a biological reagent sample containing different components is placed in the rotor of the centrifuge and rotated at high speed, the substances of different densities or particle sizes will settle faster to the outside of the centrifuge tube due to the different centrifugal forces they experience, while the substances of smaller density or particle size will remain in the upper layer or near the center, thereby achieving separation.

[0003] The existing laboratory centrifuge is usually provided with a detachable placing rack to meet the placing requirements of different centrifugal positions for convenience in use. For example, a small centrifuge for laboratories disclosed in patent No. CN119303746A is provided with a dismounting switch comprising a spring and an arcuate block to facilitate the replacement of multiple placing racks. Although this design can achieve portable dismounting, the upper and lower surfaces of the arcuate switch block are designed as inclined surfaces, and the mass above the centrifuge is greater than that below. When rotating at high speed, an upward pulling force will be generated, which will easily cause the arcuate switch block to be squeezed and moved inward, thus posing a certain safety risk. The present application improves the design. SUMMARY

[0004] To overcome the shortcomings of the prior art, the present application provides a centrifugal device for biological reagent processing, which has the advantage of facilitating the centrifugation process in the fixed cylinder.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a centrifugal device for biological reagent processing, comprising a centrifuge, a support plate is fixedly installed inside the centrifuge, a fixed cylinder is fixedly installed on the top of the support plate, a center column is movably installed inside the fixed cylinder, a limiting column is fixedly installed on the outer surface of the center column, a moving rod is movably installed inside the limiting column, a first spring is fixedly installed between the moving rod and the limiting column, a limiting workpiece is fixedly installed on one end of the two moving rods, and one end of the limiting workpiece penetrates into the inside of the fixed cylinder.

[0006] The fixed cylinder is provided with a fixed slot, the inside of the limiting workpiece is movably provided with a limiting block, the bottom of the limiting block is movably provided with a limiting frame, the inside of the limiting frame is movably provided with a limiting block, the limiting block penetrates into the inside of the fixed cylinder and one end of the limiting block extends into the inside of the limiting workpiece, an iron block one is fixedly installed in the inside of the fixed slot, a coil is sleeved on the outer surface of the iron block one, a remote power-off control switch is fixedly installed in the inside of the fixed slot and is electrically connected with both ends of the iron block one, the inside of the centrifugal machine is fixedly provided with a motor and the output end of the motor is fixedly connected with the bottom of the fixed cylinder, a control panel is fixedly installed on the front face of the centrifugal machine, a second spring is fixedly installed between the limiting block and the limiting frame, and an iron block two is fixedly installed on the inner side of the limiting frame.

[0007] As a preferred technical scheme of the utility model, the inside of the center column is fixedly provided with a mounting column, the inside of the mounting column is movably provided with a screw rod, the outer surface of the screw rod is movably provided with a centrifugal frame, the inside of the centrifugal frame is fixedly provided with a centrifugal cylinder, the inside of the centrifugal cylinder is provided with fixed holes in the form of circumferential array, and the top of the centrifugal frame is movably provided with a bolt.

[0008] As a preferred technical scheme of the utility model, the inside of the fixed cylinder is movably provided with a sliding groove, the inside of the sliding groove is movably provided with a sliding block, and the top of the sliding block is fixedly connected with the bottom of the limiting frame.

[0009] As a preferred technical scheme of the utility model, the bottom of the centrifugal machine is fixedly provided with supporting columns around, and the bottom of the supporting column is fixedly provided with a base.

[0010] As a preferred technical scheme of the utility model, the top of the centrifugal machine is fixedly provided with a fixed frame, and the inside of the fixed frame is movably provided with a machine cover.

[0011] As a preferred technical scheme of the utility model, the inside of the centrifugal cylinder is fixedly provided with fixed blocks in the form of circumferential array.

[0012] As a preferred technical scheme of the utility model, the outer diameter of the sliding block is equal to the inner diameter of the sliding groove, and the inside of the sliding groove is provided with a smooth surface.

[0013] Compared with the prior art, the utility model has the advantages of the following:

[0014] 1. The utility model discloses a device through the cooperation between the coil, the iron block no. 1 and the remote power-off control switch, makes the fixed cylinder rotation process, the centrifugal force makes the limiting frame to slide, and the second spring pushes the limiting block to enter the inside of the limiting workpiece, realizes the limiting fixing, ensures that the equipment is firmly connected when high -speed rotation each part, avoids the safety accident that causes because the part is loose, simultaneously, through remote power-off and recovery power supply instruction control electromagnet, when power failure, electromagnet adsorbs the iron block no. 1 and pulls the limiting frame, and the limiting block removes the limiting workpiece, when recovery power supply, the magnetic field disappears, and the iron block no. 2 resets, and the limiting block enters the limiting workpiece again by centrifugal force, through setting the limiting mechanism of limiting workpiece, thereby avoiding the risk that the limiting workpiece is separated because of the upward tension in high -speed rotation process, convenient dismounting replacement is played, and the risk that the limiting workpiece is separated accidentally because of high -speed rotation can be avoided.

[0015] 2. The utility model discloses a device through the cooperation of limiting workpiece, movable rod and first spring, when installing the centrifugal frame and the center column, the staff only needs to press the limiting workpiece with both hands, can drive movable rod to exert pressure on first spring in the limiting column, after the limiting workpiece is accurately aligned with the fixed cylinder groove, then inserts, and first spring rebounds immediately by the elastic potential energy of itself, and pushes movable rod and limiting workpiece to penetrate fixed cylinder, and easily completes installation, significantly shortens the installation time, and greatly improves work efficiency, compared with the prior art, the both ends of the limiting workpiece of the utility model are flat angle design, and be inclined, therefore when being pulled upward, also can not happen accidental sliding situation, and the limiting mechanism realizes the second defense line, avoids the scene that separates accidentally when high -speed rotation. ACCURACY OF DRAWINGS

[0016] Figure 1 It is the front perspective appearance structure schematic diagram of the utility model;

[0017] Figure 2 It is the fixed cylinder perspective appearance structure schematic diagram of the utility model;

[0018] Figure 3 It is the fixed cylinder section structure schematic diagram of the utility model;

[0019] Figure 4 It is the utility model Figure 3 A enlarged structure schematic diagram;

[0020] Figure 5 It is the placement rack, fixed cylinder, installation block explosion structure schematic diagram of the utility model.

[0021] In the diagram: 1. Centrifuge; 2. Fixing frame; 3. Machine cover; 4. Fixing block; 5. Bolt; 6. Support column; 7. Base; 8. Control panel; 9. Support plate; 10. Fixing cylinder; 11. Limiting workpiece; 12. Center column; 13. Centrifuge frame; 14. Centrifuge cylinder; 15. Mounting column; 16. Screw; 17. Fixing hole; 18. Coil; 19. Iron block one; 20. Limiting block; 21. Moving rod; 22. Limiting column; 23. First spring; 24. Iron block two; 25. Slider; 26. Limiting frame; 27. Second spring; 28. Remote power-off control switch; 29. ​​Slide; 30. Fixing groove; 31. Motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 5 As shown, this utility model provides a centrifuge device for processing biological reagents, including a centrifuge 1. A support plate 9 is fixedly installed inside the centrifuge 1. A fixed cylinder 10 is fixedly installed on the top of the support plate 9. A central column 12 is movably installed inside the fixed cylinder 10. A limiting column 22 is fixedly installed on the outer surface of the central column 12. A moving rod 21 is movably installed inside the limiting column 22. A first spring 23 is fixedly installed between the moving rod 21 and the limiting column 22. A limiting workpiece 11 is fixedly installed at one end of the two moving rods 21, and one end of the limiting workpiece 11 passes through the inside of the fixed cylinder 10.

[0024] The fixed cylinder 10 has a fixed groove 30. A limiting block 20 is movably installed inside the limiting workpiece 11. A limiting frame 26 is movably installed at the bottom of the limiting block 20. A limiting block 20 is movably installed inside the limiting frame 26. The limiting block 20 passes through the interior of the fixed cylinder 10, and one end of the limiting block 20 extends into the interior of the limiting workpiece 11. An iron block 19 is fixedly installed inside the fixed groove 30. A coil 18 is sleeved on the outer surface of the iron block 19. A remote power-off control switch 28 is fixedly installed inside the fixed groove 30, and the remote power-off control switch 28 is electrically connected to both ends of the iron block 19. A motor 31 is fixedly installed inside the centrifuge 1, and the output end of the motor 31 is fixedly connected to the bottom of the fixed cylinder 10. A control panel 8 is fixedly installed on the front of the centrifuge 1. A second spring 27 is fixedly installed between the limiting block 20 and the limiting frame 26. An iron block 24 is fixedly installed on the inner side of the limiting frame 26.

[0025] The staff in the inside of centrifugal cylinder 14 to biological reagent tube insertion is completed, need to install the bottom center column 12 of centrifugal frame 13 and installation column 15 to the inside of fixed cylinder 10, by two hands press limiting workpiece 11, by limiting workpiece 11 drive moving rod 21 in the inside of limiting column 22 to first spring 23 is extruded, until limiting workpiece 11 with the inside of the recess of fixed cylinder 10 flush, then four limiting workpiece 11 is inserted into the inside recess of fixed cylinder 10, when limiting workpiece 11 completely enters the inside recess of fixed cylinder 10, then, by first spring 23 in the inside of limiting column 22 to moving rod 21 and limiting workpiece 11 is extruded, so that limiting workpiece 11 penetrates the inside of fixed cylinder 10, at this time, the installation of center column 12 in the inside of fixed cylinder 10 is completed, by touching control panel 8 then by PLC control module opens motor 31, by motor 31 drive fixed cylinder 10 and centrifugal frame 13 on the top of support plate 9 is rotated, by the centrifugal force generated by fixed cylinder 10 in the process of rotation, make limiting frame 26 in fixed groove 30 to the outside of limiting workpiece 11 slide, when limiting frame 26 centrifuged to specified position, by second spring 27 in the inside of limiting frame 26 to limiting block 20 is extruded, so that limiting block 20 passes through limiting frame 26 quickly enters the inside of limiting workpiece 11, as long as fixed cylinder 10 is rotating, at this time, limiting block 20 is always in the inside of limiting workpiece 11, when needing to slowly remove center column 12 from the inside of fixed cylinder 10, need to slowly remove limiting block 20 from the inside of limiting workpiece 11, now operator inputs the instruction of power off or power recovery by touching control panel 8;The control panel converts the instruction of operator into electrical signal and transmits to PLC control module, at this time, PLC control module receives the instruction signal from control panel, according to the preset program logic, the signal is analyzed and processed;

[0026] When PLC control module receives remote power off instruction and outputs corresponding control signal, remote power off control switch 28 drive circuit is connected in turn, current flows through the iron block one 19 of electromagnet smoothly;According to the principle of electromagnetic induction, the energized iron block one 19 will excite magnetic field around iron block two 24, so that coil 18 is rapidly magnetized, and then let electromagnet as a whole produce strong magnetism;At this time, the magnetic force generated by electromagnet will have adsorption effect on iron block two 24, so that iron block two 24 pulls limiting frame 26 to move on the outer surface of center column 12 in fixed groove 30, then limiting block 20 in the inside of limiting frame 26 to second spring 27 is extruded, so that limiting block 20 quickly removes the inside;

[0027] When the PLC control module responds to the power restoration request and outputs the corresponding control signal, the drive circuit of the remote power-off control switch 28 is disconnected, causing the current flowing in the iron block 19 to stop abruptly. As the current dissipates, according to the electromagnetic effect, the magnetic field generated by the electromagnet also disintegrates rapidly like a receding tide, and the magnetism of the coil 18 dissipates completely, instantly reducing the magnetic attraction of the iron block 24 to zero. At this time, the iron block 24, which was bound by the magnetic force, is completely freed from the traction, allowing the limiting block 20 to quickly enter the interior of the limiting workpiece 11 through centrifugal force, thereby completing the limiting and fixing of the internal limiting workpiece 11 of the fixed cylinder 10.

[0028] Both the limiting frame 26 and the limiting block 20 are made of plastic, making them lightweight and easy to move.

[0029] The central column 12 has a fixed mounting column 15 inside, a movable mounting screw 16 inside the mounting column 15, a centrifuge frame 13 on the outer surface of the screw 16, a centrifuge cylinder 14 fixedly mounted inside the centrifuge frame 13, a fixing hole 17 inside the centrifuge cylinder 14, and the fixing hole 17 is arranged in a circular array. A bolt 5 is movably mounted on the top of the centrifuge frame 13.

[0030] The staff fills the biological reagent into the test tube, and then inserts the test tube into the centrifuge tube 14 through the fixing hole 17. The test tube is supported by the fixing block 4 inside the centrifuge tube 14. Then, the centrifuge rack 13 is slowly placed into the screw 16, and the bolt 5 is slowly screwed into the outer surface of the screw 16. The centrifuge rack 13 is installed on the screw 16 by the bolt 5, thus completing the installation of the biological test tube.

[0031] The fixed cylinder 10 has a sliding groove 29 installed inside, and a slider 25 is installed inside the sliding groove 29. The top of the slider 25 is fixedly connected to the bottom of the limiting frame 26.

[0032] Since a slider 25 is movably installed inside the slide 29, and the top of the slider 25 is fixedly connected to the bottom of the limiting frame 26, the slider 25 facilitates the limiting of the limiting frame 26 during movement inside the slide 29, ensuring the stability of the limiting frame 26 during movement.

[0033] Among them, the centrifuge 1 has support columns 6 fixedly installed around its bottom, and the support columns 6 have bases 7 fixedly installed at their bottom.

[0034] Since the centrifuge 1 has support columns 6 fixedly installed around its bottom, and the support columns 6 have bases 7 fixedly installed at their bottoms, the cooperation between the support columns 6 and the bases 7 provides stable support for the centrifuge 1, ensuring the stability of the centrifuge 1 during use and extending its service life.

[0035] The centrifuge 1 is fixedly installed on the top of the fixing frame 2, and the machine cover 3 is movably installed in the fixing frame 2.

[0036] The centrifuge 1 is fixedly installed on the top of the fixing frame 2, and the machine cover 3 is movably installed in the fixing frame 2.

[0037] The centrifuge 1 is fixedly installed on the top of the fixing frame 2, and the machine cover 3 is movably installed in the fixing frame 2.

[0038] The centrifuge 1 is fixedly installed on the top of the fixing frame 2, and the machine cover 3 is movably installed in the fixing frame 2.

[0039] The centrifuge 1 is fixedly installed on the top of the fixing frame 2, and the machine cover 3 is movably installed in the fixing frame 2.

[0040] The centrifuge 1 is fixedly installed on the top of the fixing frame 2, and the machine cover 3 is movably installed in the fixing frame 2.

[0041] The working principle and use process of the centrifuge are as follows:

[0042] The staff in the inside of centrifugal cylinder 14 to biological reagent tube insertion is completed, need to install the bottom center column 12 of centrifugal frame 13 and installation column 15 to the inside of fixed cylinder 10, by two hands press limiting workpiece 11, by limiting workpiece 11 drive moving rod 21 in the inside of limiting column 22 to first spring 23 is extruded, until limiting workpiece 11 with the inside of the recess of fixed cylinder 10 flush, then four limiting workpiece 11 is inserted into the inside recess of fixed cylinder 10, when limiting workpiece 11 completely enters the inside recess of fixed cylinder 10, then, by first spring 23 in the inside of limiting column 22 to moving rod 21 and limiting workpiece 11 is extruded, so that limiting workpiece 11 penetrates the inside of fixed cylinder 10, at this time, the installation of center column 12 in the inside of fixed cylinder 10 is completed, by touching control panel 8 then by PLC control module opens motor 31, by motor 31 drive fixed cylinder 10 and centrifugal frame 13 on the top of support plate 9 is rotated, by the centrifugal force generated by fixed cylinder 10 in the process of rotation, make limiting frame 26 in fixed groove 30 to the outside of limiting workpiece 11 slide, when limiting frame 26 centrifuged to the specified position, by second spring 27 in the inside of limiting frame 26 to limiting block 20 is extruded, so that limiting block 20 passes through limiting frame 26 quickly enters the inside of limiting workpiece 11, as long as fixed cylinder 10 is rotating, at this time, limiting block 20 is always in the inside of limiting workpiece 11, when the center column 12 needs to be removed slowly from the inside of fixed cylinder 10, need to remove limiting block 20 slowly from the inside of limiting workpiece 11, now the operator inputs the instruction of power off or power recovery by touching control panel 8;The control panel converts the operator's instruction into electrical signal and transmits it to PLC control module, at this time, the PLC control module receives the instruction signal from the control panel, and analyzes and processes the signal according to the preset program logic;

[0043] When the PLC control module receives the remote power-off instruction and outputs the corresponding control signal, the remote power-off control switch 28 drive circuit is connected immediately, and the current flows smoothly through the iron block one 19 of the electromagnet;According to the principle of electromagnetic induction, the energized iron block one 19 will generate a magnetic field around the iron block two 24, so that the coil 18 is quickly magnetized, and then the electromagnet as a whole generates strong magnetism;At this time, the magnetic force generated by the electromagnet will have an adsorbing effect on the iron block two 24, so that the iron block two 24 pulls the limiting frame 26 to move on the outer surface of the center column 12 in the fixed groove 30, and then the limiting block 20 in the inside of limiting frame 26 extrudes the second spring 27, so that the limiting block 20 is quickly removed from the inside;

[0044] When the PLC control module responds to the power supply recovery requirement and outputs the corresponding control signal, the driving circuit of the remote power-off control switch 28 should be disconnected, causing the current flowing in the iron block 19 to stop abruptly; as the current dissipates, according to the electromagnetic effect, the magnetic field generated by the electromagnet also rapidly collapses like the ebb tide, and the magnetism of the coil 18 also dissipates, so that the magnetic force adsorption effect on the iron block 2 is zero in an instant; at this time, the iron block 2 bound by the magnetic force is completely freed from the traction, so that the limiting block 20 quickly enters the inside of the limiting workpiece 11 through the centrifugal force, thereby completing the limiting and fixing of the inside of the fixed cylinder 10.

[0045] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0046] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A centrifugation apparatus for processing of biological agents, comprising a centrifuge (1), characterized in that: The inside of the centrifuge (1) is fixedly installed with a support plate (9), the top of the support plate (9) is fixedly installed with a fixed cylinder (10), the inside of the fixed cylinder (10) is movably installed with a center column (12), the outer surface of the center column (12) is fixedly installed with a limiting column (22), the inside of the limiting column (22) is movably installed with a moving rod (21), the first spring (23) is fixedly installed between the moving rod (21) and the limiting column (22), one end of the two moving rods (21) is fixedly installed with a limiting workpiece (11), and one end of the limiting workpiece (11) penetrates into the inside of the fixed cylinder (10). The fixed cylinder (10) is provided with a fixed groove (30), the inside of the limiting workpiece (11) is movably installed with a limiting block (20), the bottom of the limiting block (20) is movably installed with a limiting frame (26), the inside of the limiting frame (26) is movably installed with a limiting block (20), the limiting block (20) penetrates into the inside of the fixed cylinder (10), and one end of the limiting block (20) extends into the inside of the limiting workpiece (11), the inside of the fixed groove (30) is fixedly installed with an iron block (19), the outer surface of the iron block (19) is sleeved with a coil (18), the inside of the fixed groove (30) is fixedly installed with a remote power-off control switch (28), and the remote power-off control switch (28) is electrically connected with the two ends of the iron block (19), the inside of the centrifuge (1) is fixedly installed with a motor (31), the output end of the motor (31) is fixedly connected with the bottom of the fixed cylinder (10), the front of the centrifuge (1) is fixedly installed with a control panel (8), the second spring (27) is fixedly installed between the limiting block (20) and the limiting frame (26), and the inner side of the limiting frame (26) is fixedly installed with an iron block (24).

2. The centrifuge device for biological reagent processing according to claim 1, characterized in that: The inside of the center column (12) is fixedly installed with a mounting column (15), the inside of the mounting column (15) is movably installed with a screw rod (16), the outer surface of the screw rod (16) is movably installed with a centrifugal frame (13), the inside of the centrifugal frame (13) is fixedly installed with a centrifugal cylinder (14), the inside of the centrifugal cylinder (14) is provided with fixed holes (17) in a circumferential array, and the top of the centrifugal frame (13) is movably installed with a bolt (5).

3. The centrifuge device for biological reagent processing according to claim 1, characterized in that: The inside of the fixed cylinder (10) is movably installed with a sliding groove (29), the inside of the sliding groove (29) is movably installed with a sliding block (25), and the top of the sliding block (25) is fixedly connected with the bottom of the limiting frame (26).

4. The centrifuge device for biological reagent processing according to claim 1, characterized in that: The bottom of the centrifuge (1) is fixedly installed with support columns (6) around, and the bottom of the support column (6) is fixedly installed with a base (7).

5. The centrifuge device for biological reagent processing according to claim 1, characterized in that: The top of the centrifuge (1) is fixedly installed with a fixed frame (2), and the inside of the fixed frame (2) is movably installed with a machine cover (3).

6. The centrifuge device for biological reagent processing according to claim 2, characterized in that: The inside of the centrifugal cylinder (14) is fixedly installed with fixed blocks (4) in a circumferential array.

7. The centrifuge device for biological reagent processing according to claim 3, characterized in that: The outer diameter of the slider (25) is equal to the inner diameter of the sliding groove (29), and the inner part of the sliding groove (29) is designed with a smooth surface.

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