Magnetic separation cleaning device

Abstract

The magnetic separation cleaning device comprises a magnetic separation disc, a first-order liquid injection assembly, a first-order uniform mixing assembly and a rear-section liquid injection uniform mixing mechanism, the magnetic separation disc comprises a main body, an outer shell, a cover body and a driving part, the first-order liquid injection assembly comprises a first-order liquid injection pipe and a liquid level detection device, the first-order liquid injection pipe is fixed to one through hole, and the first-order uniform mixing assembly is fixed to the other through hole. One end of the first-order liquid injection pipe is communicated with the liquid supply device, and the other end of the first-order liquid injection pipe faces the to-be-treated test tube in the mounting area, is inclined relative to the liquid level and is used for injecting liquid into the to-be-treated test tube, and the liquid level detection device is used for detecting the liquid level and controlling the amount of liquid injected by the first-order liquid injection pipe according to the liquid level. Compared with the prior art, the liquid injection direction is inclined relative to the liquid level of the test tube and faces the inner wall of the test tube, bubbles can be effectively reduced, the liquid level detection device detects the liquid level and controls the liquid amount injected by the first-order liquid injection tube according to the liquid level, and therefore the liquid injection amount is determined according to the existing liquid amount in the test tube, and the cleaning effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of in vitro diagnosis, and in particular to a magnetic separation and cleaning device. Background Art

[0002] In in vitro diagnostic instruments, magnetic separation and cleaning devices are used to separate the magnetic particle complex from the reaction solution by solid-liquid phase separation. In order to ensure the purpose of magnetic separation, the magnetic particle complex needs to be injected, mixed, and waste liquid sucked multiple times during the separation process to achieve a good separation and cleaning effect.

[0003] In the prior art magnetic separation liquid injection structure, the liquid injection method is to inject liquid vertically above the reaction cup synchronously at each stage of liquid injection, and the liquid injection volume is the same in each stage.

[0004] However, the above-mentioned prior art has the following problems: first, the presence of sample and reagent solution in the first-stage reaction cup is not taken into consideration, which will lead to poor first-stage cleaning effect; second, the liquid injection in the direction perpendicular to the liquid surface will cause bubbles in the solution in the reaction cup, affecting the separation effect. Summary of the invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and to provide a magnetic separation cleaning device to solve the technical problem of poor cleaning and separation effects in the prior art.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides a magnetic separation cleaning device, comprising: The magnetic separation disk comprises a main body, an outer shell, a cover body and a driving member, wherein the main body is rotatably arranged in the outer shell and forms a plurality of installation areas for setting test tubes to be processed, the cover body is arranged on the outer shell and has a plurality of through holes corresponding to the installation areas, and the driving member drives the main body to rotate so that the installation areas pass through each of the through holes in sequence; A first-stage liquid injection assembly, comprising a first-stage liquid injection tube and a liquid level detection device, wherein the first-stage liquid injection tube is fixed at one of the through holes, one end of the first-stage liquid injection tube is connected to the liquid supply device, and the other end faces the test tube to be processed in the installation area and is inclined relative to the liquid level, and is used to inject liquid into the test tube to be processed, and the liquid level detection device is used to detect the liquid level and control the amount of liquid injected by the first-stage liquid injection tube according to the liquid level; A first-stage mixing component, fixed at one of the through holes and arranged behind the first-stage liquid injection component, used for grabbing the test tube to be processed and mixing the liquid in the test tube to be processed; and A plurality of rear-stage liquid injection and mixing mechanisms are respectively fixed at the through holes and arranged behind the first-stage mixing component, and are used to inject and mix liquid into the test tube to be processed; wherein the driving member drives the main body to rotate so that the test tube to be processed in the installation area passes through the through holes to which the first-stage liquid injection component, the first-stage mixing component and the rear-stage liquid injection and mixing mechanism are fixed in sequence.

[0007] In some embodiments, a heating plate is provided at the bottom of the main body for heating the main body and the test tubes to be processed in the installation area.

[0008] In some embodiments, thermal insulation cotton is attached to the outer peripheral surface of the main body.

[0009] In some embodiments, the cover body is disposed on the outer shell, and a heating plate is embedded in the cover body.

[0010] In some embodiments, the first-order mixing component includes a mixing lifting motor, a mixing carrier, a first-order mixing gripper and a first-order rotating motor. The mixing lifting motor is fixed on the cover body, the lifting end of the mixing lifting motor is fixed to the mixing carrier, the first-order mixing gripper is rotatably fixed on the mixing carrier, and the first-order rotating motor is belt-connected to the first-order mixing gripper.

[0011] In some embodiments, the first-order mixing gripper includes a plurality of elastic clips, and the plurality of elastic clips together form a clamping space that matches the test tube.

[0012] In some embodiments, the first-order mixing component also includes a cup-beating lifting motor, a cup-beating carrier and a first-order cup-beating piece. The cup-beating lifting motor is fixed on the cover body, the lifting end of the cup-beating lifting motor is fixed to the cup-beating carrier, and the first-order cup-beating piece is fixed on the cup-beating carrier.

[0013] In some embodiments, the rear-end liquid injection and mixing mechanism includes a rear-end liquid injection component and a rear-end mixing component. The rear-end liquid injection component includes multiple rear-end liquid injection tubes arranged in sequence corresponding to the through holes, and is used to inject liquid into the test tube passing through the through holes where the tubes are located. The rear-end mixing component includes multiple mixing mechanisms, and the mixing mechanisms are arranged one by one corresponding to the liquid injection mechanisms, and are used to mix the liquid in the test tube.

[0014] In some embodiments, the mixing mechanism includes a rear-stage mixing gripper and a rear-stage rotating motor. The rear-stage mixing gripper is fixed on the mixing carrier, the rear-stage rotating motor is belt-connected to the rear-stage mixing gripper, and the rear-stage liquid injection tube is fixed to the mixing carrier and passed through the rear-stage mixing gripper.

[0015] In some embodiments, a waste liquid suction component is also included, which includes a waste liquid suction lifting motor, a waste suction platform, a plurality of waste liquid suction pipes and a liquid suction pump. The waste suction lifting motor is fixed on the cover body, the waste suction platform is fixed to the lifting end of the waste suction lifting motor, the waste liquid suction pipe is fixed on the waste suction platform, and the liquid suction pump is connected to one end of the waste liquid suction pipe.

[0016] Compared with the prior art, the magnetic separation cleaning device provided by the present invention comprises a magnetic separation disk, a first-stage liquid injection component, a first-stage mixing component and a rear-stage liquid injection and mixing mechanism, the magnetic separation disk comprises a main body, an outer shell, a cover body and a driving member, the main body is rotatably arranged in the outer shell, and forms a plurality of installation areas for setting test tubes to be processed, the cover body is arranged on the outer shell and has a plurality of through holes corresponding to the installation areas, and the driving member drives the main body to rotate relative to the outer shell and the cover body; the first-stage liquid injection component comprises a first-stage liquid injection tube and a liquid level detection device, the first-stage liquid injection tube is fixed at one of the through holes, one end of the first-stage liquid injection tube is connected to the liquid supply device, and the other end faces the test tube to be processed in the installation area and is inclined relative to the liquid level, so as to inject liquid into the test tube to be processed, and the liquid level detection device is used to detect the liquid level and control the liquid injected by the first-stage liquid injection tube according to the liquid level. volume; the first-order mixing component is fixed at one of the through holes, and is used to grab the test tube to be processed and mix the liquid in the test tube to be processed; multiple rear-stage liquid injection and mixing mechanisms are respectively fixed at one of the through holes, and are used to inject liquid into the test tube to be processed and mix it; wherein, the driving member drives the main body to rotate, so that the test tube to be processed in the installation area passes through the through holes fixed with the first-order liquid injection component, the first-order mixing component and the rear-stage liquid injection and mixing mechanism in sequence; compared with the prior art, a magnetic separation cleaning device provided by the present invention is provided with a first-order liquid injection tube and a liquid level detection device, the injection direction of the first-order liquid injection tube is inclined relative to the liquid surface of the test tube and toward the inner wall of the test tube, which can effectively reduce the generation of bubbles, and the liquid level detection device detects the liquid level and controls the amount of liquid injected by the first-order liquid injection tube according to the liquid level, thereby determining the injection amount according to the existing liquid amount in the test tube, thereby improving the cleaning effect.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail as follows with reference to the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the magnetic separation and cleaning device provided by the present invention; Figure 2 It is a structural schematic diagram of another direction of the magnetic separation and cleaning device provided by the present invention; Figure 3 yes Figure 1 Schematic diagram of the cross section of the magnetic separation disk. Figure 4 yes Figure 2 Schematic diagram of the injection angle of the first-order injection tube.

[0019] Description of reference numerals: 1-magnetic separation plate, 11-main body, 111-heating plate, 112-insulation cotton, 12-outer shell, 121-magnet, 13-cover, 131-through hole, 14-driving member, 141-driving motor, 142-driving shaft, 143-driving gear plate, 2-first-order liquid injection component, 21-first-order liquid injection tube, 3-first-order mixing component, 31-mixing lifting motor, 32-mixing carrier plate, 33-first-order mixing gripper, 34-first-order rotating motor, 35-cup patting lifting motor, 36-cup patting carrier plate, 37-first-order cup patting plate, 4-rear-stage liquid injection and mixing mechanism, 41-rear-stage liquid injection component, 411-rear-stage liquid injection tube, 42-rear-end mixing component, 421-mixing mechanism, 5-waste liquid suction component, 51-waste suction lifting motor, 52-waste suction platform, 53-waste liquid suction tube. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4 , Figure 1 It is a structural schematic diagram of a magnetic separation and cleaning device in one embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the cross section of the inner cylinder and the outer cylinder; Figure 3 yes Figure 1 Schematic diagram of the structure of the middle inner cylinder.

[0022] The present invention provides a magnetic separation cleaning device, comprising: a magnetic separation disk 1, a first-stage liquid injection component 2, a first-stage mixing component 3 and a rear-stage liquid injection mixing mechanism 4, wherein the magnetic separation disk 1 comprises a main body 11, an outer shell 12, a cover 13 and a driving member 14, wherein the main body 11 is rotatably arranged in the outer shell 12, and forms a plurality of installation areas for setting test tubes to be processed, the cover 13 is covered on the outer shell 12 and has a plurality of through holes 131 corresponding to the installation areas, and the driving member 13 drives the main body 11 to rotate relative to the outer shell 12 and the cover 13; the first-stage liquid injection component 2 comprises a first-stage liquid injection tube 21 and a liquid level detection device, wherein the first-stage liquid injection tube 21 is fixed at one of the through holes 131, and one end is connected to the liquid supply device The first-stage mixing assembly 3 is fixed at one of the through holes 131, and is used to grab the test tube to be processed and mix the liquid in the test tube to be processed; a plurality of the rear-stage liquid injection and mixing mechanisms 4 are respectively fixed at one of the through holes 131, and are used to inject and mix the liquid into the test tube to be processed; wherein the driving member 13 drives the main body 11 to rotate, so that the test tube to be processed in the installation area passes through the through hole 131 to which the first-stage liquid injection assembly 2, the first-stage mixing assembly 3 and the rear-stage liquid injection and mixing mechanism 4 are fixed in sequence.

[0023] Compared with the prior art, the magnetic separation cleaning device provided by the present invention is provided with a first-order liquid injection tube 21 and a liquid level detection device. The injection direction of the first-order liquid injection tube 21 is inclined relative to the liquid surface of the test tube and toward the inner wall of the test tube, which can effectively reduce the generation of bubbles. The liquid level detection device detects the liquid level and controls the amount of liquid injected by the first-order liquid injection tube 21 according to the liquid level, thereby determining the injection amount according to the existing liquid amount in the test tube, thereby improving the cleaning effect.

[0024] In this embodiment, the plurality of mounting areas on the main body 11 are arranged at equal intervals around the axis of the main body 11. A plurality of magnets 121 are embedded at equal intervals on the outer circumference of the outer shell 12, and the magnetic properties of adjacent magnets 121 are different. In this embodiment, the magnets 121 correspond to the gaps between adjacent mounting areas.

[0025] In this embodiment, a heating plate 111 is provided at the bottom of the main body 11, which is used to heat the main body 11 and the test tubes to be processed in the installation area, thereby increasing the cleaning temperature and improving the cleaning effect.

[0026] In this embodiment, a heat-insulating cotton 112 is attached to the outer peripheral surface of the main body 11 to reduce the heat loss of the main body 11 and the test tubes to be processed in the installation area, thereby ensuring the cleaning effect.

[0027] In this embodiment, the cover 13 is covered on the outer shell 12, and a heating plate is embedded in the cover 13 to heat the main body 11 and the test tubes to be processed in the installation area, thereby increasing the cleaning temperature and improving the cleaning effect.

[0028] In this embodiment, the driving member 14 includes a driving motor 141, a driving shaft 142, and a driving gear 143. The driving shaft 142 is passed through the main body 11, and the driving gear 143 is sleeved on the driving shaft 142. The output end of the driving motor 141 is engaged with the driving gear 143 to drive the driving shaft 142 and the main body 11 to rotate.

[0029] In this embodiment, the first-stage injection tube 21 is fixed at one of the through holes 131, one end of which is connected to the liquid supply device, and the other end of which is directed toward the inner wall of the test tube to be processed in the installation area and inclined relative to the liquid surface, for injecting liquid into the test tube to be processed. When the first-stage injection tube 21 injects liquid into the test tube, the liquid is injected obliquely into the test tube and hits the inner wall of the test tube, which can effectively reduce bubbles generated when the liquid is injected and ensure the cleaning effect.

[0030] In this embodiment, a control device and a control valve are also included. The liquid level detection device is fixed on the cover body 13, and is used to detect the liquid level of the test tube corresponding to the first-order liquid injection tube 21. The control valve is arranged on the first-order liquid injection tube 21. The control device is electrically connected to the control valve and the liquid level detection device. The control device receives the detection result of the liquid level detection device, and controls the switch of the control valve according to the result to control the injection amount of the first-order liquid injection tube 21.

[0031] It should be noted that the liquid level detection device can adopt a variety of methods, such as an ultrasonic liquid level sensor, a microwave liquid level sensor, etc. This is an existing technology well known to those skilled in the art and will not be described in detail here.

[0032] In this embodiment, the first-order mixing component 3 includes a mixing lifting motor 31, a mixing carrier plate 32, a first-order mixing gripper 33 and a first-order rotating motor 34. The mixing lifting motor 31 is fixed on the cover body 13, the lifting end of the mixing lifting motor 31 is fixed to the mixing carrier plate 32, the first-order mixing gripper 33 is rotatably fixed on the mixing carrier plate 32, and the first-order rotating motor 34 is connected to the first-order mixing gripper 33 by a belt. When in use, the mixing lifting motor 31 drives the mixing carrier plate 32 to descend, the first-order mixing gripper 33 grabs the test tube, and the first-order rotating motor 34 drives the first-order mixing gripper 33 to rotate, so that the test tube rotates and the liquid in the test tube is mixed. After the mixing is completed, the mixing lifting motor 31 drives the mixing carrier plate 32 to rise, and the first-order mixing gripper 33 is separated from the test tube.

[0033] In this embodiment, the first-order mixing gripper 33 includes a plurality of elastic clips, and the plurality of elastic clips together form a gripping space matching the test tube.

[0034] In this embodiment, the first-order mixing component 3 further includes a cup-slapping lifting motor 35, a cup-slapping carrier 36, and a first-order cup-slapping piece 37. The cup-slapping lifting motor 35 is fixed to the cover 13, the lifting end of the cup-slapping lifting motor 35 is fixed to the cup-slapping carrier 36, and the first-order cup-slapping piece 37 is fixed to the cup-slapping carrier 36. When the liquid in the test tube is mixed, the cup-slapping lifting motor 35 drives the cup-slapping carrier 36 and the first-order cup-slapping piece 37 to descend and abut against the test tube, thereby assisting the test tube to separate from the first-order mixing gripper 33.

[0035] In this embodiment, the rear-end liquid injection and mixing mechanism 4 includes a rear-end liquid injection component 41 and a rear-end mixing component 42. The rear-end liquid injection component 41 includes a plurality of rear-end liquid injection tubes 411 arranged in sequence corresponding to the through holes 131, and is used to inject liquid into the actual test tube passing through the through holes 131 where they are located. The rear-end mixing component 42 includes a plurality of mixing mechanisms 421, and the mixing mechanisms 421 are arranged one by one corresponding to the liquid injection mechanisms 411, and are used to mix the liquid in the test tube.

[0036] In this embodiment, the mixing mechanism 421 includes a rear mixing gripper and a rear rotating motor. The rear mixing gripper is fixed on the mixing carrier 32. The rear rotating motor is connected to the rear mixing gripper belt. The rear injection tube 411 is fixed to the mixing carrier 32 and is passed through the rear mixing gripper. When in use, the mixing lifting motor 31 drives the mixing carrier 32 to descend, the rear mixing gripper descends, grabs the corresponding test tube, and the rear injection tube 411 extends into the test tube for injection; after the injection is completed, the rear rotating motor drives the rear mixing gripper to rotate to mix the liquid in the test tube; after the mixing is completed, the mixing lifting motor 31 drives the mixing carrier 32 to rise, and the rear mixing gripper is separated from the test tube.

[0037] In this embodiment, the rear-stage mixing gripper includes a plurality of elastic clips, and the plurality of elastic clips together form a clamping space matching the test tube.

[0038] In this embodiment, the rear-stage liquid injection and mixing mechanism 4 also includes a rear-stage cup-beating piece corresponding to the rear-end mixing component 42, and the rear-stage cup-beating piece is fixed on the cup-beating carrier 36. When the liquid in the test tube is mixed, the cup-beating lifting motor 35 drives the cup-beating carrier 36 and the rear-stage cup-beating piece to descend and abut against the test tube, thereby assisting the test tube to separate from the rear-stage mixing gripper.

[0039] In this embodiment, a waste liquid suction component 5 is also included, and the waste liquid suction component 5 includes a waste suction lifting motor 51, a waste suction platform 52, a plurality of waste liquid suction pipes 53 and a suction pump. The waste suction lifting motor 51 is fixed on the cover body 13, the waste suction platform 52 is fixed to the lifting end of the waste suction lifting motor 51, the waste liquid suction pipe 53 is fixed on the waste suction platform 52, and the suction pump is connected to one end of the waste liquid suction pipe 53. When the test tube is mixed and the test tube is separated from the rear-stage liquid injection mixing mechanism 4 or the first-stage mixing component 3, the waste suction lifting motor 51 drives the waste suction platform 52 to descend, and the waste liquid suction pipe 53 is extended into the test tubes of each stage that have completed mixing, and the suction pump works to extract the waste liquid in the test tube.

[0040] It should be noted that the waste liquid pipe 53 is arranged behind the first-order mixing component 3 and behind each mixing mechanism 421 along the rotation direction of the main body 11.

[0041] In order to better understand the present invention, the technical solution of the present invention is described in detail below with reference to the accompanying drawings: When in use, the test tube is placed into the main body 11 from the loading and unloading position, and the main body 11 rotates to drive the test tube to rotate to the first-order liquid injection component 2 first, and the first-order liquid injection component 2 injects a proper amount of liquid into the test tube at an angle according to the existing liquid in the test tube; then the main body 11 rotates to rotate the test tube that has completed the first-order liquid injection to the first-order mixing component 3, and the first-order mixing component 3 grabs and rotates the test tube to complete the mixing of the liquid inside the test tube. After the mixing is completed, the main body 11 rotates to rotate the test tube that has completed the first-order mixing to the waste liquid pipe 53, and the waste suction lifting motor 51 drives the waste suction platform 52 to descend, and the waste liquid suction pipe 53 is extended into the test tube that has completed the mixing, and the liquid suction pump works to extract the waste liquid in the test tube; thereby completing the first-order cleaning process; The main body 11 rotates to rotate the test tube to the rear-stage liquid injection component 41, the mixing lifting motor 31 drives the mixing carrier 32 to descend, the rear-stage mixing gripper descends to grab the corresponding test tube, and the rear-stage liquid injection tube 411 extends into the test tube for liquid injection; after the liquid injection is completed, the rear-stage rotation motor drives the rear-stage mixing gripper to rotate to mix the liquid in the test tube; after the mixing is completed, the mixing lifting motor 31 drives the mixing carrier 32 to rise, and the rear-stage mixing gripper is separated from the test tube; the main body 11 rotates to rotate the test tube to the waste liquid suction component 5, the waste suction lifting motor 51 drives the waste suction platform 52 to descend, and the waste liquid suction tube 53 is extended into the test tubes that have completed the mixing at each stage, and the liquid suction pump works to extract the waste liquid in the test tube.

[0042] Beneficial effects of the present invention: The magnetic separation cleaning device provided by the present invention comprises a magnetic separation disk, a first-stage liquid injection component, a first-stage mixing component and a rear-stage liquid injection and mixing mechanism, the magnetic separation disk comprises a main body, an outer shell, a cover body and a driving member, the main body is rotatably arranged in the outer shell, and forms a plurality of installation areas for setting test tubes to be processed, the cover body is arranged on the outer shell and has a plurality of through holes corresponding to the installation areas, and the driving member drives the main body to rotate relative to the outer shell and the cover body; the first-stage liquid injection component comprises a first-stage liquid injection tube and a liquid level detection device, the first-stage liquid injection tube is fixed at one of the through holes, one end of the first-stage liquid injection tube is connected to the liquid supply device, and the other end faces the test tube to be processed in the installation area and is inclined relative to the liquid level, so as to inject liquid into the test tube to be processed, and the liquid level detection device is used to detect the liquid level and control the liquid injected by the first-stage liquid injection tube according to the liquid level. volume; the first-order mixing component is fixed at one of the through holes, and is used to grab the test tube to be processed and mix the liquid in the test tube to be processed; multiple rear-stage liquid injection and mixing mechanisms are respectively fixed at one of the through holes, and are used to inject liquid into the test tube to be processed and mix it; wherein, the driving member drives the main body to rotate, so that the test tube to be processed in the installation area passes through the through holes fixed with the first-order liquid injection component, the first-order mixing component and the rear-stage liquid injection and mixing mechanism in sequence; compared with the prior art, a magnetic separation cleaning device provided by the present invention is provided with a first-order liquid injection tube and a liquid level detection device, the injection direction of the first-order liquid injection tube is inclined relative to the liquid surface of the test tube and toward the inner wall of the test tube, which can effectively reduce the generation of bubbles, and the liquid level detection device detects the liquid level and controls the amount of liquid injected by the first-order liquid injection tube according to the liquid level, thereby determining the injection amount according to the existing liquid amount in the test tube, thereby improving the cleaning effect.

[0043] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A magnetic separation cleaning device, characterized in that: It includes: The magnetic separation disk comprises a main body, an outer shell, a cover body and a driving member, wherein the main body is rotatably arranged in the outer shell and forms a plurality of installation areas for setting test tubes to be processed, the cover body is arranged on the outer shell and has a plurality of through holes corresponding to the installation areas, and the driving member drives the main body to rotate so that the installation areas pass through each of the through holes in sequence; A first-stage liquid injection assembly, comprising a first-stage liquid injection tube and a liquid level detection device, wherein the first-stage liquid injection tube is fixed at one of the through holes, one end of the first-stage liquid injection tube is connected to the liquid supply device, and the other end faces the test tube to be processed in the installation area and is inclined relative to the liquid level, and is used to inject liquid into the test tube to be processed, and the liquid level detection device is used to detect the liquid level and control the amount of liquid injected by the first-stage liquid injection tube according to the liquid level; A first-stage mixing component, fixed at one of the through holes and arranged behind the first-stage liquid injection component, is used to grab the test tube to be processed and mix the liquid in the test tube to be processed; as well as A plurality of rear-stage liquid injection and mixing mechanisms are respectively fixed at the through holes and arranged behind the first-stage mixing component, and are used to inject and mix liquid into the test tube to be processed; wherein the driving member drives the main body to rotate so that the test tube to be processed in the installation area passes through the through holes to which the first-stage liquid injection component, the first-stage mixing component and the rear-stage liquid injection and mixing mechanism are fixed in sequence.

2. The magnetic separation cleaning device according to claim 1, characterized in that: A heating plate is provided at the bottom of the main body for heating the main body and the test tubes to be processed in the installation area.

3. The magnetic separation cleaning device according to claim 1, characterized in that: Thermal insulation cotton is attached to the outer peripheral surface of the main body.

4. The magnetic separation cleaning device according to claim 1, characterized in that: The cover body is disposed on the outer shell, and a heating plate is embedded in the cover body.

5. The magnetic separation cleaning device according to claim 1, characterized in that: The first-order mixing component includes a mixing lifting motor, a mixing carrier, a first-order mixing gripper and a first-order rotating motor. The mixing lifting motor is fixed on the cover body, and the lifting end of the mixing lifting motor is fixed to the mixing carrier. The first-order mixing gripper is rotatably fixed on the mixing carrier, and the first-order rotating motor is belt-connected to the first-order mixing gripper.

6. The magnetic separation cleaning device according to claim 5, characterized in that: The first-order mixing gripper comprises a plurality of elastic clips, and the plurality of elastic clips are combined to form a gripping space matching the test tube.

7. The magnetic separation cleaning device according to claim 5, characterized in that: The first-order mixing component also includes a cup-beating lifting motor, a cup-beating carrier and a first-order cup-beating piece. The cup-beating lifting motor is fixed on the cover body, the lifting end of the cup-beating lifting motor is fixed to the cup-beating carrier, and the first-order cup-beating piece is fixed on the cup-beating carrier.

8. The magnetic separation cleaning device according to claim 7, characterized in that: The rear-end liquid injection and mixing mechanism includes a rear-end liquid injection component and a rear-end mixing component. The rear-end liquid injection component includes a plurality of rear-end liquid injection tubes arranged in sequence corresponding to the through holes, and is used to inject liquid into the test tube passing through the through holes where the tubes are located. The rear-end mixing component includes a plurality of mixing mechanisms, and the mixing mechanisms are arranged one by one corresponding to the liquid injection mechanisms, and are used to mix the liquid in the test tube.

9. The magnetic separation cleaning device according to claim 8, characterized in that: The mixing mechanism includes a rear-stage mixing gripper and a rear-stage rotating motor. The rear-stage mixing gripper is fixed to the mixing carrier, the rear-stage rotating motor is belt-connected to the rear-stage mixing gripper, and the rear-stage liquid injection tube is fixed to the mixing carrier and penetrates the rear-stage mixing gripper.

10. The magnetic separation cleaning device according to claim 1, characterized in that: It also includes a waste liquid suction component, which includes a waste liquid suction lifting motor, a waste suction platform, a plurality of waste liquid suction pipes and a liquid suction pump. The waste suction lifting motor is fixed on the cover body, the waste suction platform is fixed to the lifting end of the waste suction lifting motor, the waste liquid suction pipe is fixed on the waste suction platform, and the liquid suction pump is connected to one end of the waste liquid suction pipe.

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