A fully automatic blood extraction centrifugal device and an extraction centrifugal method thereof

Abstract

The application discloses a kind of fully automatic blood extraction centrifugal device and extraction centrifugal method thereof, belong to centrifugal equipment technical field, including centrifuge box, the limit cylinder is fixed in the centrifuge box inside, the driving table for centrifugal rotation is arranged on the bottom surface in the centrifuge box, the rotating column is fixed in the top surface center of driving table, two limit plates are fixed in the lateral wall of rotating column, centrifugal storage mechanism is slidably sleeved in the top end of rotating column, limit plate is inserted into centrifugal storage mechanism, centrifugal storage mechanism is arranged in the limit cylinder inside, and the spray washing component is attached and arranged in the limit cylinder inside The positioning ring is fixed on the inner wall of limit cylinder, and the spray washing component is attached and arranged on the top surface of positioning ring;S1, insert blood collection tube;S2, liquid injection balance;S3, centrifugal extraction;S4, take piece and drain cleaning.Liquid injection component automatically injects solution into the cavity of the fixed assembly that has not inserted blood collection tube, compensates weight difference, ensures the stable gravity when centrifugal storage mechanism rotates, effectively reduces the amplitude of shaking, to improve the centrifugal extraction precision and effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of centrifugal equipment, more particularly to a full-automatic blood extraction centrifugal device and an extraction centrifugal method thereof. BACKGROUND

[0002] The full-automatic blood extraction centrifugal device is a key equipment in the field of clinical examination and biomedical research, mainly used for separating collected whole blood samples into different components such as plasma, serum, and blood cells through high-speed centrifugation, so as to provide pure samples for subsequent biochemical analysis, immune detection, pathogenic diagnosis, and other experiments. Its performance directly affects the sample separation efficiency and quality, and further relates to the accuracy and reliability of the test results. With the increasing demand for detection efficiency and automation level in the medical industry, the device needs to have core capabilities such as batch processing, precise centrifugation, automatic cleaning, and pollution prevention to meet the high-throughput detection needs of hospital laboratories, third-party testing agencies, and other scenarios.

[0003] In the prior art, the implementation means and working principle of the blood extraction centrifugal device are relatively traditional, mainly focusing on a single drive and manual assistance mode. In terms of sample bearing, a fixed storage structure is mostly used, and blood collection tubes are manually inserted and positioned, relying on mechanical buckles or simple friction to achieve fixation. The centrifugal drive rotates the rotor through an independent motor, and uses centrifugal force to separate blood layers. However, the storage structure without inserted blood collection tubes needs to manually add counterweights to balance the weight. The cleaning process requires manual disassembly of the device after centrifugation, using a high-pressure water gun to rinse the internal cavity, and then using alcohol for disinfection and cleaning.

[0004] However, the existing centrifugal device has the following deficiencies:

[0005] 1. The weight balance relies on manual addition of counterweights, which is tedious and has low balancing accuracy, resulting in high rotor shaking amplitude during centrifugation, poor blood layering clarity, and reduced centrifugal extraction precision and effect.

[0006] 2. In the case of broken blood collection tubes, blood is easily coagulated and attached to the inside of the device, which is not easy to clean and the cleaning operation is tedious.

[0007] Therefore, we propose a full-automatic blood extraction centrifugal device with high precision and easy cleaning. SUMMARY

[0008] 1. Technical problems to be solved

[0009] The present application aims to provide a full-automatic blood extraction centrifugal device and an extraction centrifugal method thereof, solving the technical problems raised in the background art.

[0010] 2. Technical solutions

[0011] The technical scheme of the application provides a kind of full-automatic blood extraction centrifugal device, including centrifuge box, the limit cylinder is fixed inside the centrifuge box, the driving table for centrifugal rotation is arranged on the bottom surface of centrifuge box, the rotating column is fixed on the top surface of driving table, two limit plates are fixed on the side wall of rotating column, the centrifugal storage mechanism is slidably connected to the top end of rotating column, the limit plate is inserted into centrifugal storage mechanism, and the centrifugal storage mechanism is arranged in the limit cylinder, the spray washing assembly is arranged on the top surface of the positioning ring, the centrifugal storage mechanism is arranged in the spray washing assembly, four first pneumatic rods are arranged in the centrifuge box in a rectangular shape, the lifting cover is fixed between the top end of four first pneumatic rods, the liquid injection assembly is arranged in the lifting cover, the liquid injection assembly and the spray washing assembly are connected with the liquid storage tank inside the centrifuge box;

[0012] The centrifugal storage mechanism includes a support column slidably connected to the top end of the rotating column, the support column is arranged in the spray washing assembly, the push ring is fixed to the bottom end of the support column, the push ring is arranged at the bottom of the spray washing assembly, the tray and the fixed cylinder are fixed to the outer wall of the support column, the tray is fixed to the bottom surface of the fixed cylinder, eight groups of reversible positioning assemblies are evenly distributed and fixed to the outer wall of the fixed cylinder, the expansion push assembly is arranged in the support column to simultaneously push and block the eight groups of positioning assemblies, the positioning assembly is used to insert and place the blood collection tube, and the blood collection tube is tilted and extracted by centrifugal force, eight liquid flow grooves are evenly distributed and fixed to the top surface of the tray, the liquid flow groove is arranged at the bottom of the positioning assembly, the cavity structure is arranged in the positioning assembly, the liquid injection assembly is used to inject solution into the cavity structure of the positioning assembly to compensate the weight of the positioning assembly without blood collection tube.

[0013] Further, the bottom surface of the lifting cover is fixed with a plurality of hanging plates in the circumferential direction, the bottom side wall of the hanging plate is rotatably connected with a roller, and the lifting cover is provided with three states by the first pneumatic rod;

[0014] In the first state, the lifting cover is attached to the top surface of the centrifuge box to close the inside of the centrifuge box for blood centrifugal extraction;

[0015] In the second state, the lifting cover is lifted to open the top surface of the centrifuge box, and the roller is lifted to attach to the bottom surface of the tray;

[0016] In the third state, the lifting cover is further lifted, the roller pushes the tray to rise, so that the positioning assembly rises to the top of the centrifuge box, and the push ring pushes the spray washing assembly to rise.

[0017] Further, the fixed assembly comprises a first fixing frame fixed to the outer wall of the fixed cylinder, one side of the expansion and pushing assembly is connected to the inside of the first fixing frame, the inside of one side of the insertion swing block is provided with an insertion cavity for inserting the blood collection tube, the inside of the other side of the insertion swing block is provided with a liquid storage cavity, the top surface of the liquid storage cavity is provided with a liquid injection groove, the bottom end of the liquid injection assembly is inserted into the inside of the liquid injection groove, the inside of the insertion swing block is connected with a clamping and sealing component, the bottom of the liquid storage cavity is a through structure, the bottom of the clamping and sealing component is inserted into the through structure at the bottom of the liquid storage cavity, and the clamping and sealing component is pushed and translated by the expansion and pushing assembly to open the through structure at the bottom of the liquid storage cavity.

[0018] Further, the clamping and sealing component comprises two connecting plates connected to the insertion swing block, a pushing block is fixed between one side of the two connecting plates, an insertion groove is formed in the side wall of the insertion swing block, the pushing block is inserted into the insertion groove, a second fixing plate is fixed between the other side of the two connecting plates, two guide rods are connected to the inside of the second fixing plate, a second spring is sleeved on the outer wall of the guide rod, one end of the guide rod is fixed to the outer wall of the insertion swing block, a second inclined sealing block is fixed to the bottom side wall of the second fixing plate, the top surface of the second inclined sealing block is an inclined surface structure, the bottom surface of the insertion swing block is an inclined surface structure, the inclined surface structure of the second inclined sealing block is arranged in abutment with the inclined surface structure of the insertion swing block, a sealing block is fixed to the inclined surface structure of the second inclined sealing block, and the sealing block is inserted into the inside of the liquid storage cavity in a horizontal direction.

[0019] Further, a first inclined sealing block is inserted into the inside of the insertion swing block in a horizontal direction, one side of the first inclined sealing block is arranged in abutment with the inside of the liquid injection groove, the top surface of the first inclined sealing block is provided with an inclined surface structure, and a first spring is connected between the side wall of the first inclined sealing block and the inside of the insertion swing block. The bottom end of the liquid injection assembly pushes the first inclined sealing block to move, so that the liquid injection groove is opened.

[0020] Further, the liquid injection assembly comprises a second fixing frame fixed to the top surface of the hanging sealing cover, the top surface of the second fixing frame is provided with a first water pump, a first liquid guide pipe is connected between one side of the first water pump and the inside of the liquid storage tank in a penetrating mode, the bottom surface of the first water pump is connected with a telescopic pipe in a penetrating mode, the bottom end of the telescopic pipe is connected with a control valve, the bottom surface of the control valve is connected with a liquid injection pipe, the liquid injection pipe is connected to the inside of the hanging sealing cover in a penetrating mode, a third pushing plate is fixed to the side wall of the control valve, a fourth pneumatic rod is arranged on the side wall of the second fixing frame, the bottom end of the fourth pneumatic rod is connected to the top surface of the third pushing plate, and the fourth pneumatic rod pushes the third pushing plate downward to push the liquid injection pipe to be inserted into the inside of the liquid injection groove.

[0021] Further, the expansion pushing assembly comprises a third pneumatic rod arranged in the support column, and a flat pushing group penetratingly connected to the inside of the support column, wherein eight groups of the flat pushing group are evenly arranged along the circumferential direction of the support column, one side of the flat pushing group is penetratingly arranged in the first fixed frame, and the third pneumatic rod is connected with a round table structure sliding pushing column at the top end in an extension mode.

[0022] The flat pushing group comprises a guide pushing bolt slidingly inserted into the support column, the outer wall of the guide pushing bolt is sleeved with a third spring, one end of the guide pushing bolt is fixedly connected with a sliding top plate, one side of the sliding top plate is slidingly connected to the inside of the sliding pushing groove, the other end of the guide pushing bolt is penetratingly connected to the inside of the first fixed frame, and the other end of the guide pushing bolt is fixedly connected with a second pushing plate, wherein the second pushing plate and the pushing block are located on the same horizontal center line, the bottom surface of the second pushing plate is fixedly connected with a fixed supporting plate, the bottom surface of the side close to the fixed supporting plate of the plug-in swing block is in a stepped structure, and the fixed supporting plate is driven to translate and stop against the stepped structure of the fixed supporting plate by the second pushing plate.

[0023] Further, the hanging cover is provided with a fixed pushing component on the bottom surface of the side close to the liquid injection pipe, and the fixed pushing component is used to drive the second pushing plate to make the fixed supporting plate translate and stop against the stepped structure of the plug-in swing block.

[0024] The fixed pushing component comprises a first fixed plate fixedly connected to the bottom surface of the hanging cover, the bottom surface of the first fixed plate is fixedly connected with a second pneumatic rod and a sliding rail, the extension end of the second pneumatic rod is connected with a first pushing plate, the first pushing plate is slidingly connected to the inside of the sliding rail, and the first pushing plate is located at the same horizontal height as the second pushing plate when the hanging cover is in the first state.

[0025] Further, the spray washing assembly comprises a scraping and washing disc which is arranged on the top surface of the positioning ring in a matched mode, the outer wall of the scraping and washing disc is matched to the inner wall of the limiting cylinder, the top surface of the scraping and washing disc is penetratingly connected with a supporting cylinder, the outer wall of the top end of the supporting cylinder is sleeved with a ring-shaped spray pipe, one side of the spray pipe is penetratingly connected with a second liquid guide pipe, the second liquid guide pipe is penetratingly connected to the outside of the centrifugal machine box, one end of the second liquid guide pipe away from the spray pipe is connected with a second water pump, the top surface of the second water pump is penetratingly connected to the bottom surface of a liquid storage tank, and the inner wall of the supporting cylinder is arranged in a gap mode with the side wall of the supporting column.

[0026] A kind of extraction centrifugation method of full-automatic blood extraction centrifugal device, the extraction centrifugation method comprises the following steps:

[0027] S1, plug-in blood collection tube is placed;

[0028] The first pneumatic rod is started to push the hanging cover to rise to the third state, the centrifuge box is opened, and the tray is pushed to rise by the roller to make the centrifugal storage mechanism as a whole rise, and eight sets of fixed installation assemblies are lifted to be higher than the centrifuge box; the third pneumatic rod is started to push the sliding push column upward, eight sliding top plates move along the sliding push groove, the sliding push groove pushes the guide push bolt to translate, the guide push bolt compresses the third spring, the guide push bolt pushes the second push plate to translate, the fixed support plate is inserted into the stepped bottom surface of the insertion swing block to prevent the insertion swing block from swinging on the first fixed frame; the second push plate continues to translate to push the push block to be inserted into the insertion slot, the second push plate is attached to the side wall of the insertion swing block, the push block pushes the connecting plate, the clamping plate is pulled out from the insertion slot, the connecting plate pushes the second fixed plate to translate, the sealing block is translated to open the bottom of the liquid storage cavity and empty it; a plurality of blood collection tubes are inserted into the insertion slots of the plurality of insertion swing blocks, and the blood collection tubes are kept in position; the third pneumatic rod is started to pull the sliding push column downward to reset, eight sets of flat push groups are reset, the insertion swing block is reset, the liquid storage cavity is closed, the clamping plate is clamped on the side wall of the blood collection tube, and the insertion swing block can swing flexibly in the first fixed frame;

[0029] S2, liquid injection and balance;

[0030] The first pneumatic rod is started to pull the hanging cover to descend to the first state, the hanging cover closes the top surface of the centrifuge box, and the internal temperature adjusting device is opened to cool down; the driving table is started to drive the rotating column to rotate, the rotating column pushes the centrifugal storage mechanism as a whole to rotate by the limiting plate, the insertion swing block without the blood collection tube is rotated to the bottom of the liquid injection assembly, the driving table is closed, and the driving table is composed of a driving motor, a speed regulator and a timer; the second pneumatic rod is started to push the first push plate, the first push plate slides along the sliding rail and pushes the second push plate, so that the fixed support plate is inserted into the stepped bottom surface of the insertion swing block to keep the insertion swing block stable;

[0031] The first water pump and the fourth pneumatic rod are started, the cleaning liquid in the liquid storage tank is poured into the telescopic pipe through the first liquid guide pipe, the fourth pneumatic rod pushes the third push plate to descend, the control valve pushes the liquid injection pipe to descend, the liquid injection pipe pushes away the first inclined sealing block, and the liquid injection pipe is inserted into the liquid injection slot; the control valve is opened, the cleaning liquid is injected into the liquid storage cavity, then the liquid injection pipe is pulled out, the first inclined sealing block blocks the liquid injection slot, and the compensation of the weight of the insertion swing block is completed;

[0032] S3, centrifugal extraction;

[0033] The driving table is started to drive the rotating column to rotate at high speed, under the action of the centrifugal force, the insertion swing block drives the blood collection tube to overturn and tilt, and the centrifugal extraction effect on the blood in the blood collection tube is improved;

[0034] S4, part taking and liquid discharge and cleaning;

[0035] After the centrifugal extraction is completed, the first pneumatic rod is started to push the hanging cover to rise to the second state, so that the roller just adheres to the bottom surface of the tray, and then whether there is a blood collection tube broken inside is observed; the second water pump is started to guide the cleaning liquid into the spray pipe to be sprayed out, and the spray pipe washes the inner wall of the limiting cylinder; the first pneumatic rod is started again to push the hanging cover to rise to the third state, and the push ring pushes the scraping and washing tray to rise to scrape the inner wall of the limiting cylinder clean;

[0036] The third pneumatic rod is started to push the sliding push column to rise, the blood collection tube is loosened by the clamping plate, and the blood collection tube is taken out; the liquid storage cavity is opened to discharge the cleaning liquid inside, and the cleaning liquid flows along the liquid flow groove to the inside of the scraping and washing tray, and the waste liquid is discharged through the liquid discharge pipe to the inside of the waste liquid box.

[0037] 3. Beneficial effects

[0038] One or more technical solutions provided in the technical scheme of the present application have at least the following technical effects or advantages:

[0039] 1. The liquid injection assembly automatically injects solution into the cavity of the blood collection tube-free blood collection tube storage assembly, compensates for the weight difference, ensures the stability of the center of gravity during the rotation of the centrifugal storage mechanism, effectively reduces the shaking amplitude, and thus improves the centrifugal extraction precision and effect.

[0040] 2. The centrifugal storage mechanism, the spray cleaning assembly, and the liquid injection assembly work cooperatively, the centrifugal storage mechanism can be cleaned by the spray cleaning assembly without disassembly after centrifugation, and the liquid injection balance does not require manual intervention, thereby simplifying the process.

[0041] 3. The first state (closed) ensures that the device is sealed during centrifugation and maintains the internal temperature control environment; the second state (half-open) adheres the roller to the tray to provide support for subsequent lifting; the third state (fully open) pushes the tray and the spray cleaning assembly to rise synchronously, the blood collection tube is lifted out of the top of the device, and the blood collection tube can be taken out without stretching into the inside, the spray cleaning assembly can be cleaned comprehensively when it rises, the operation time of the blood collection tube is shortened, the pollution risk caused by manual stretching is avoided, the cleaning range of the spray cleaning assembly covers the full height of the limiting cylinder, the cleaning dead angle is reduced, and the maintenance cost of the device is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of a full-automatic blood extraction centrifugal device.

[0043] Figure 2 It is a back structure schematic diagram of the whole device.

[0044] Figure 3 It is a connection structure schematic diagram of the centrifugal storage mechanism and the spray cleaning assembly.

[0045] Figure 4 It is a connection structure schematic diagram of the centrifugal storage mechanism and the rotating column.

[0046] Figure 5 This is a schematic diagram of the connection structure between the expansion component and the fixed assembly component of the present invention.

[0047] Figure 6 This is a schematic diagram of the fixed assembly structure of the present invention.

[0048] Figure 7 This is a schematic diagram of the internal structure of the mounting component of the present invention.

[0049] Figure 8 This is a cross-sectional view of the connection structure between the clamping component and the insert block of the present invention.

[0050] Figure 9 This is a schematic diagram of the hanging cover structure of the present invention.

[0051] Figure 10 This is a schematic diagram of the liquid injection assembly of the present invention in the state of liquid injection into the fixed assembly.

[0052] Figure 11 This is a schematic diagram of the spray washing assembly of the present invention.

[0053] Explanation of the numbers in the diagram: 100, centrifuge casing; 110, waste liquid box; 200, first pneumatic rod; 300, lifting cover; 310, lifting plate; 320, roller; 330, fixed push component; 331, first fixed plate; 332, second pneumatic rod; 333, first push plate; 334, slide rail; 400, centrifuge storage mechanism; 410, support column; 411, push ring; 420, tray; 430, flow tank; 440. Fixed assembly components; 441, First fixing frame; 442, Insertion swing block; 4421, Injection tank; 4422, Liquid storage chamber; 4423, First inclined sealing block; 4424, First spring; 4425, Slot; 4426, Insertion cavity; 443, Clamping sealing component; 4431, Push block; 4432, Connecting plate; 4433, Clamping plate; 4434, Second fixing plate; 4435, Guide rod; 4436, Second spring; 4437, Second 4438. Slanted sealing block; 450. Fixed cylinder; 460. Expanding push assembly; 461. Third pneumatic rod; 462. Sliding push column; 4621. Sliding push groove; 463. Sealing plate; 464. Sliding top plate; 465. Guide push bolt; 466. Third spring; 467. Second push plate; 468. Fixed support plate; 500. Liquid injection assembly; 510. First liquid guide pipe; 520. First water pump; 530. Second fixed frame; 54 0. Telescopic tube; 550. Control valve; 560. Fourth pneumatic rod; 570. Third push plate; 580. Injection pipe; 600. Storage tank; 700. Spraying assembly; 710. Second water pump; 720. Second guide pipe; 730. Spray pipe; 740. Scraper plate; 750. Support cylinder; 760. Drain pipe; 800. Limiting cylinder; 810. Positioning ring; 900. Drive platform; 910. Rotating column; 911. Limiting plate. DETAILED DESCRIPTION

[0054] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0055] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only intended to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application.

[0056] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0057] Reference Figures 1-11This application provides a fully automated blood extraction centrifugation device, including a centrifuge chamber 100. A limiting cylinder 800 is fixed inside the centrifuge chamber 100. A drive platform 900 for centrifugal rotation is provided on the bottom surface of the centrifuge chamber 100. A rotating column 910 is fixed at the center of the top surface of the drive platform 900. Two limiting plates 911 are fixed to the side walls of the rotating column 910. A centrifugal storage mechanism 400 is slidably sleeved on the top of the rotating column 910. The limiting plates 911 are inserted into the centrifugal storage mechanism 400. The centrifugal storage mechanism 400 is disposed inside the limiting cylinder 800. A spray nozzle is fitted inside the limiting cylinder 800. The washing component 700 has a positioning ring 810 fixed to the inner wall of the limiting cylinder 800. The spray washing component 700 is fitted to the top surface of the positioning ring 810. The bottom of the centrifugal storage mechanism 400 is installed inside the spray washing component 700. The centrifuge housing 100 has four first pneumatic rods 200 arranged in a rectangular pattern inside. A lifting cover 300 is fixed between the tops of the four first pneumatic rods 200. A liftable liquid injection component 500 is installed through the top surface of the lifting cover 300. A liquid storage tank 600 is installed on the outer wall of the centrifuge housing 100. The liquid injection component 500 and the spray washing component 700 are both connected to the inside of the liquid storage tank 600.

[0058] The centrifugal storage mechanism 400 includes a support column 410 slidably sleeved on the top of the rotating column 910. The support column 410 is disposed inside the spray washing assembly 700. A push ring 411 is fixed at the bottom end of the support column 410 and is disposed at the bottom of the spray washing assembly 700. A tray 420 and a fixing cylinder 450 are sleeved and fixed on the outer wall of the top of the support column 410. The tray 420 is fixed to the bottom surface of the fixing cylinder 450. Eight sets of rotatable fixed assembly assemblies 440 are evenly distributed and fixed on the outer wall of the fixing cylinder 450. The top of the support column 410 is provided with... The expanding and pushing component 460 is used to synchronously push and position the eight sets of fixed assembly components 440. The fixed assembly components 440 are used to insert blood collection tubes and are flipped by centrifugal force to tilt and centrifuge the blood collection tubes for extraction. Eight liquid flow tanks 430 are evenly distributed and fixed on the top surface of the tray 420. The liquid flow tanks 430 are set at the bottom of the fixed assembly components 440. The fixed assembly components 440 have a cavity structure inside. The liquid injection component 500 injects solution into the cavity structure of the fixed assembly components 440 by descending to compensate for the weight of the fixed assembly components 440 without blood collection tubes inserted.

[0059] The injection component 500 automatically injects solution into the cavity of the fixed assembly 440 where no blood collection tubes are inserted, compensating for weight differences and ensuring the stability of the center of gravity when the centrifugal storage mechanism 400 rotates, effectively reducing the shaking amplitude and thus improving the accuracy and effect of centrifugal extraction.

[0060] The centrifugal storage mechanism 400, the spray washing component 700, and the liquid injection component 500 work together. After centrifugation, the spray washing component 700 can clean the centrifuged liquid without disassembly. Liquid injection balancing does not require manual intervention, simplifying the process.

[0061] In the embodiment, the bottom surface of the hanging cover 300 is fixed with a plurality of hanging plates 310 in the circumferential direction, the bottom side wall of the hanging plate 310 is rotationally connected with a roller 320, and the hanging cover 300 is provided with three states by the first pneumatic rod 200;

[0062] In the first state, the hanging cover 300 is attached to the top surface of the centrifuge box 100, so that the inside of the centrifuge box 100 is closed, which is used for blood centrifugation extraction;

[0063] In the second state, the hanging cover 300 is raised to open the top surface of the centrifuge box 100, and the roller 320 is raised to be attached to the bottom surface of the tray 420;

[0064] In the third state, the hanging cover 300 is further raised, the roller 320 pushes the tray 420 to rise, so that the fixing assembly 440 is raised on the top of the centrifuge box 100, and the push ring 411 pushes the spray washing assembly 700 to rise;

[0065] The first state (closed) ensures that the equipment is sealed during centrifugation and maintains the internal temperature control environment; the second state (half open) is attached to the tray 420 by the roller 320 to provide support for subsequent lifting; the third state (fully open) pushes the tray 420 and the spray washing assembly 700 to rise synchronously, the blood collection tube is lifted out of the top of the equipment, and the blood collection tube is taken and placed without stretching into the inside, the spray washing assembly 700 is raised to clean the inner wall of the limiting cylinder 800, the operation time of the blood collection tube is shortened, the pollution risk caused by manual stretching is avoided, the cleaning range of the spray washing assembly 700 covers the full height of the limiting cylinder 800, the cleaning dead angle is reduced, and the equipment maintenance cost is reduced.

[0066] In the embodiment, the fixing assembly 440 includes a first fixed frame 441 fixed to the outer wall of the fixed cylinder 450, the expansion pushing assembly 460 is connected to the inside of the first fixed frame 441 on one side, the first fixed frame 441 is rotationally connected with an insertion swing block 442 inside, the insertion swing block 442 is provided with an insertion cavity 4426 for inserting and placing the blood collection tube on one side inside, the insertion swing block 442 is provided with a liquid storage cavity 4422 inside on the other side, the liquid storage cavity 4422 is provided with a liquid injection groove 4421 on the top surface, the bottom end of the liquid injection assembly 500 is inserted into the liquid injection groove 4421 inside, the insertion swing block 442 is connected with a clamping sealing part 443, the bottom of the liquid storage cavity 4422 is a through structure, the clamping sealing part 443 is inserted and closed in the through structure at the bottom of the liquid storage cavity 4422, and the clamping sealing part 443 is pushed and translated by the expansion pushing assembly 460 to open the through structure at the bottom of the liquid storage cavity 4422;

[0067] The insertion swing block 442 is internally provided with an insertion cavity 4426 (blood collection tube) and a liquid storage cavity 4422 (balance liquid), which are physically isolated to avoid cross contamination; the clamping and sealing component 443 seals the bottom of the liquid storage cavity 4422 to ensure that the balance liquid does not leak when the liquid is injected; the insertion swing block 442 is rotatable and can drive the blood collection tube to tilt (tilt angle 30-45°) under the action of centrifugal force, thereby increasing the blood centrifugal contact area and improving the layering efficiency; the clamping and sealing component 443 is pushed open by the expansion and pushing assembly 460 to open the liquid storage cavity 4422, and the balance liquid can be automatically emptied after centrifugation, so as to facilitate the next compensation operation.

[0068] In this embodiment, the clamping and sealing component 443 includes two connecting plates 4432 connected through the insertion swing block 442, a push block 4431 fixed between one side of the two connecting plates 4432, an insertion slot 4425 formed in the side wall of the insertion swing block 442, the push block 4431 inserted into the insertion slot 4425, a second fixed plate 4434 fixed between the other side of the two connecting plates 4432, two guide rods 4435 connected through the second fixed plate 4434, a second spring 4436 sleeved on the outer wall of the guide rod 4435, the guide rod 4435 fixed to the outer wall of the insertion swing block 442 at one end, a second inclined sealing block 4437 fixed to the bottom side wall of the second fixed plate 4434, the top surface of the second inclined sealing block 4437 being an inclined surface structure, the bottom surface of the insertion swing block 442 being an inclined surface structure, the inclined surface structure of the second inclined sealing block 4437 being arranged in close contact with the inclined surface structure of the insertion swing block 442, a sealing block 4438 fixed to the inclined surface structure of the second inclined sealing block 4437, the sealing block 4438 inserted and closed in the liquid storage cavity 4422 in the horizontal direction, a clamping plate 4433 fixed between the two connecting plates 4432 and slidingly connected to the inside of the insertion swing block 442, the clamping plate 4433 inserted into the insertion cavity 4426 on one side to tightly clamp the blood collection tube;

[0069] The clamping plate 4433 is linked with the second spring 4436 through the connecting plate 4432, and the clamping force can be automatically adjusted by the spring force to avoid clamping injury to the blood collection tube; the sealing block 4438 of the second inclined sealing block 4437 is tightly attached to the bottom of the liquid storage cavity 4422.

[0070] In this embodiment, a first inclined sealing block 4423 is inserted into the insertion swing block 442 in the horizontal direction, one side of the first inclined sealing block 4423 is closed and arranged in the liquid injection groove 4421, the top surface of the first inclined sealing block 4423 is provided with an inclined surface structure, and a first spring 4424 is connected between the side wall of the first inclined sealing block 4423 and the inside of the insertion swing block 442; the bottom end of the liquid injection assembly 500 drives the first inclined sealing block 4423 to move downward, so that the liquid injection groove 4421 is opened;

[0071] The first inclined sealing block 4423 normally closes the liquid injection groove 4421 to prevent evaporation or contamination of the balance liquid; when the liquid injection pipe 580 is lowered, the first inclined sealing block 4423 is pushed to move, the liquid injection groove 4421 is automatically opened, manual operation is not required, and the reliability of the seal is improved; the inclined surface on the top surface of the first inclined sealing block 4423 guides the liquid injection pipe 580 to be accurately inserted into the liquid injection groove 4421, the misalignment rate is reduced, and overflow of the balance liquid is avoided.

[0072] In the embodiment, the liquid injection assembly 500 comprises a second fixing frame 530 fixed to the top surface of the hanging sealing cover 300, the top surface of the second fixing frame 530 is provided with a first water pump 520, one side of the first water pump 520 is connected with the inside of the liquid storage tank 600 through a first liquid guide pipe 510, the bottom surface of the first water pump 520 is connected with a telescopic pipe 540, the bottom end of the telescopic pipe 540 is connected with a control valve 550, the bottom surface of the control valve 550 is connected with a liquid injection pipe 580, the liquid injection pipe 580 penetrates into the inside of the hanging sealing cover 300, the side wall of the control valve 550 is fixed with a third push plate 570, the side wall of the second fixing frame 530 is provided with a fourth pneumatic rod 560, the telescopic bottom end of the fourth pneumatic rod 560 is connected to the top surface of the third push plate 570, the fourth pneumatic rod 560 pushes the third push plate 570 downward to make the control valve 550 push the liquid injection pipe 580 to be lowered and inserted into the inside of the liquid injection groove 4421;

[0073] The fourth pneumatic rod 560 pushes the liquid injection pipe 580 to be lowered synchronously with the liquid delivery of the first water pump 520, the liquid injection pipe 580 starts to inject immediately after being inserted into the liquid injection groove 4421, without delay, and leakage is avoided; the control valve 550 cooperates with the first water pump 520 to accurately adjust the liquid injection amount, accurately compensate according to the weight of the blood collection tube, and ensure the weight balance error.

[0074] In the embodiment, the expansion and pushing assembly 460 comprises a third pneumatic rod 461 arranged in the inside of the support column 410, a flat pushing group penetratingly connected in the inside of the support column 410, eight groups of the flat pushing group being evenly arranged along the circumferential direction of the support column 410, one side of the flat pushing group penetratingly arranged in the inside of the first fixing frame 441, the telescopic top end of the third pneumatic rod 461 being connected with a circular truncated cone structure sliding pushing column 462, the top end of the sliding pushing column 462 being fixed with a blocking disc 463, eight sliding pushing grooves 4621 being evenly arranged on the side wall of the sliding pushing column 462 along the circumferential direction, the sliding pushing grooves 4621 being inclined ladder structures, and one side of the flat pushing group slidingly fitting into the inside of the sliding pushing groove 4621;

[0075] The flat pushing group comprises a guide pushing pin 465 slidingly inserted into the support column 410, the outer wall of the guide pushing pin 465 is sleeved with a third spring 466, one end of the guide pushing pin 465 is fixedly connected with a sliding top plate 464, one side of the sliding top plate 464 is slidingly connected to the inside of a sliding pushing groove 4621, the other end of the guide pushing pin 465 penetrates into the inside of a first fixing frame 441, the other end of the guide pushing pin 465 is fixedly connected with a second pushing plate 467, the second pushing plate 467 is located on the same horizontal center line as the pushing block 4431, the bottom surface of the second pushing plate 467 is fixedly connected with a fixed supporting plate 468, the bottom surface of the insertion swing block 442 close to the fixed supporting plate 468 is in a stepped structure, and the fixed supporting plate 468 is pushed to be translationally attached to the inside of the stepped structure of the fixed supporting plate 468 through the second pushing plate 467.

[0076] The third pneumatic rod 461 drives the circular table structure sliding pushing column 462, eight groups of flat pushing groups are synchronously pushed through eight inclined stepped sliding pushing grooves 4621, synchronous clamping and loosening of the eight groups of fixed assembly components 440 are realized, and the operation efficiency is high; the fixed supporting plate 468 is attached to the stepped structure of the insertion swing block 442, the insertion swing block 442 is kept to be positioned and offset, and the stability during insertion of the blood sampling tube is improved; the third spring 466 assists the flat pushing group to reset, the jamming rate is reduced, and the operation is simple and convenient.

[0077] In the embodiment, the fixed pushing component 330 is arranged on the bottom surface of the hanging sealing cover 300 close to the liquid injection pipe 580, and is used to push the second pushing plate 467, so that the fixed supporting plate 468 is translationally attached to the inside of the stepped structure of the insertion swing block 442.

[0078] The fixed pushing component 330 comprises a first fixing plate 331 fixedly connected to the bottom surface of the hanging sealing cover 300, a second pneumatic rod 332 and a sliding rail 334 are fixedly connected to the bottom surface of the first fixing plate 331, a first pushing plate 333 is connected to the telescopic end of the second pneumatic rod 332, the first pushing plate 333 is slidingly connected to the inside of the sliding rail 334, and the first pushing plate 333 is located at the same horizontal height as the second pushing plate 467 when the hanging sealing cover 300 is in the first state.

[0079] The fixed pushing component 330 of the hanging sealing cover 300 pushes the first pushing plate 333 through the second pneumatic rod 332, and then pushes the second pushing plate 467 to stop the fixed supporting plate 468 from the insertion swing block 442, so that the offset amount of the insertion swing block 442 during the liquid injection process is reduced, and the liquid injection pipe 580 is accurately inserted; without manual assistance, the fixed pushing component 330 is linked with the liquid injection assembly 500, the insertion swing block 442 is automatically positioned before liquid injection, and the operation is simple and accurate.

[0080] In the embodiment, the spray cleaning assembly 700 comprises a scraping disc 740 arranged on the top surface of the positioning ring 810, the outer wall of the scraping disc 740 is attached to the inner wall of the limiting cylinder 800, the top surface of the scraping disc 740 is connected with a supporting cylinder 750, the outer wall of the top end of the supporting cylinder 750 is sleeved with a spraying pipe 730 of annular structure, one side of the spraying pipe 730 is connected with a second liquid guide pipe 720, the second liquid guide pipe 720 is connected to the outside of the centrifuge box 100, one end of the second liquid guide pipe 720 away from the spraying pipe 730 is connected with a second water pump 710, the top surface of the second water pump 710 is connected to the bottom surface of the liquid storage tank 600, the inner wall of the supporting cylinder 750 is arranged in a gap with the side wall of the supporting column 410, the push ring 411 is arranged at the bottom of the scraping disc 740, the bottom surface of the scraping disc 740 is connected with a liquid discharge pipe 760, the bottom end of the liquid discharge pipe 760 is connected to the bottom surface of the centrifuge box 100, the bottom surface of the centrifuge box 100 is inserted with a waste liquid box 110, and the bottom end of the liquid discharge pipe 760 is arranged in the waste liquid box 110.

[0081] The spraying pipe 730 is arranged in an annular structure, and can wash the inner wall of the limiting cylinder 800 at 360°; when the scraping disc 740 rises with the centrifugal storage mechanism 400, the inner wall of the limiting cylinder 800 is scraped to remove residual dirt, and there is no cleaning dead angle; the liquid discharge pipe 760 is directly connected to the waste liquid box 110, the cleaning waste liquid is discharged immediately, and bacteria breeding is avoided; the spray cleaning assembly 700 is linked with the hanging cover, and cleaning can be started immediately after centrifugation, without additional operation.

[0082] The embodiment of the application provides an extraction centrifugation method of a full-automatic blood extraction centrifugal device, and the extraction centrifugation method comprises the following steps:

[0083] S1, inserting and arranging a blood collection tube;

[0084] The first pneumatic rod 200 is started to push the hanging cover 300 to rise to the third state, the centrifuge box 100 is opened, and the roller 320 is used to push the tray 420 to rise, so that the centrifugal storage mechanism 400 as a whole rises, and eight sets of fixed installation assemblies 440 are lifted to be higher than the centrifugal box; the third pneumatic rod 461 is started to push the sliding push column 462 upward, eight sliding top plates 464 move along the sliding push groove 4621, the sliding push groove 4621 pushes the guide push bolt 465 to translate, the guide push bolt 465 compresses the third spring 466, the guide push bolt 465 pushes the second push plate 467 to translate, the fixed support plate 468 is inserted into the stepped bottom surface of the swing block 442, and the swing block 442 is prevented from swinging on the first fixed frame 441; the second push plate 467 continues to translate to push the push block 4431 to be inserted into the insertion groove, the second push plate 467 is attached to the side wall of the swing block 442, the push block 4431 pushes the connecting plate 4432, so that the clamping plate 4433 is pulled out of the insertion groove, the connecting plate 4432 pushes the second fixed plate 4434 to translate, and the sealing block 4438 translates to open the bottom of the liquid storage cavity 4422 and empty it; a plurality of blood collection tubes are inserted into the insertion grooves of the plurality of swing blocks 442, and the blood collection tubes are kept in position; the third pneumatic rod 461 is started to pull the sliding push column 462 downward to reset, eight sets of flat push groups are reset, the swing block 442 is reset inside, the liquid storage cavity 4422 is closed inside, the clamping plate 4433 is clamped on the side wall of the blood collection tube, and the swing block 442 can swing flexibly in the first fixed frame 441;

[0085] S2, liquid injection and balance;

[0086] The first pneumatic rod 200 is started to pull the hanging cover 300 to descend to the first state, the hanging cover 300 closes the top surface of the centrifuge box 100, and the internal temperature adjusting device is opened to cool; the driving table 900 is started to drive the rotating column 910 to rotate, the rotating column 910 pushes the centrifugal storage mechanism 400 as a whole to rotate by means of the limiting plate 911, the swing block 442 without the blood collection tube is rotated to the bottom of the liquid injection assembly 500, the driving table 900 is closed, and the driving table 900 is composed of a driving motor, a speed regulator and a timer; the second pneumatic rod 332 is started to push the first push plate 333, the first push plate 333 slides along the sliding rail 334 and pushes the second push plate 467, so that the fixed support plate 468 is inserted into the stepped bottom surface of the swing block 442, and the swing block 442 is kept stable;

[0087] The first water pump 520 and the fourth pneumatic rod 560 are started, the cleaning liquid in the liquid storage tank 600 is poured into the telescopic pipe 540 through the first liquid guide pipe 510, the fourth pneumatic rod 560 pushes the third push plate 570 to descend, the control valve 550 pushes the liquid injection pipe 580 to descend, the liquid injection pipe 580 pushes away the first inclined sealing block 4423, and the liquid injection pipe 580 is inserted into the liquid injection groove 4421; the control valve 550 is opened, the cleaning liquid is injected into the liquid storage cavity 4422, the liquid injection pipe 580 is pulled out, the first inclined sealing block 4423 blocks the liquid injection groove 4421, and the compensation to the weight of the swing block 442 is completed;

[0088] S3, centrifugal extraction;

[0089] The driving table 900 is started to drive the rotating column 910 to rotate at high speed, and under the action of centrifugal force, the insertion block 442 drives the blood collection tube to overturn and tilt, thereby improving the centrifugal extraction effect on the blood inside the blood collection tube;

[0090] S4, taking out and liquid discharge and cleaning;

[0091] After the centrifugal extraction is completed, the first pneumatic rod 200 is started to push the hanging cover 300 to rise to the second state, so that the roller 320 is just attached to the bottom surface of the tray 420, and then whether the blood collection tube is broken is observed; the second water pump 710 is started to guide the cleaning liquid into the spray pipe 730 to be sprayed out, and the spray pipe 730 flushes the inner wall of the limiting cylinder 800; the first pneumatic rod 200 is started again to push the hanging cover 300 to rise to the third state, and the push ring 411 pushes the scraping and cleaning tray 740 to rise to scrape and clean the inner wall of the limiting cylinder 800;

[0092] The third pneumatic rod 461 is started to push the sliding push column 462 to rise, the clamping plate 4433 releases the blood collection tube, and the blood collection tube is taken out; the liquid storage cavity 4422 is opened to discharge the cleaning liquid inside, and the cleaning liquid flows along the liquid flow groove 430 to the inside of the scraping and cleaning tray 740, and the cleaning waste liquid is discharged through the liquid discharge pipe 760 to the inside of the waste liquid box 110.

[0093] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A fully automated blood extraction centrifugation device, characterized by: The centrifuge box is internally fixed with a limiting cylinder, the bottom surface of the centrifuge box is provided with a driving table for centrifugal rotation, the top surface of the driving table is fixed with a rotating column, the side wall of the rotating column is fixed with two limiting plates, the rotating column top end is slidably sleeved with a centrifugal storage mechanism, the limiting plates are inserted into the centrifugal storage mechanism, the centrifugal storage mechanism is arranged in the limiting cylinder, a spray washing assembly is arranged in the limiting cylinder, a positioning ring is fixed on the inner wall of the limiting cylinder, the spray washing assembly is arranged on the top surface of the positioning ring, the centrifugal storage mechanism bottom penetrates into the spray washing assembly, four first pneumatic rods are arranged in the centrifuge box in a rectangular distribution, a hanging cover is fixed between the top ends of the four first pneumatic rods, a liquid injection assembly is arranged on the top surface of the hanging cover, a liquid storage tank is arranged on the outer wall of the centrifuge box, and the liquid injection assembly and the spray washing assembly are in through connection with the inside of the liquid storage tank; The centrifugal storage mechanism comprises a supporting column slidably sleeved on the top end of the rotating column, the supporting column penetrates into the spray washing assembly, the bottom end of the supporting column is fixed with a pushing ring, the pushing ring is arranged on the bottom of the spray washing assembly, the top end of the supporting column is sleeved with a tray and a fixed cylinder, the tray is fixed on the bottom surface of the fixed cylinder, eight groups of reversible positioning assemblies are uniformly arranged on the outer wall of the fixed cylinder, an expansion pushing assembly is arranged in the top end of the supporting column to synchronously push and block the eight groups of positioning assemblies, the positioning assemblies are used for inserting and placing blood collection tubes, and are turned by centrifugal force to make the blood collection tubes inclined and centrifuged for extraction, eight liquid flow grooves are uniformly arranged on the top surface of the tray, the liquid flow grooves are arranged on the bottom of the positioning assemblies, the positioning assemblies are provided with a cavity structure, and the liquid injection assembly is used for injecting solution into the cavity structure of the positioning assemblies to compensate the weight of the positioning assemblies without blood collection tubes; The positioning assembly comprises a first fixed frame fixed on the outer wall of the fixed cylinder, the expansion pushing assembly is connected to the inside of the first fixed frame in penetration, a plug swing block is rotationally connected in the first fixed frame, a plug cavity for inserting and placing a blood collection tube is formed in one side of the plug swing block, a liquid storage cavity is formed in the other side of the plug swing block, a liquid injection groove is formed in the top surface of the liquid storage cavity, the bottom end of the liquid injection assembly is inserted into the liquid injection groove in descent, a clamping part is connected in penetration in the plug swing block, the bottom of the liquid storage cavity is a through structure, the clamping part is inserted into the through structure at the bottom of the liquid storage cavity in penetration, and the clamping part is pushed and translated by the expansion pushing assembly to open the through structure at the bottom of the liquid storage cavity. The clamping component includes two connecting plates that pass through and connect to the insertion block. A push block is fixed across one side of the two connecting plates. A slot is opened on the side wall of the insertion block, and the push block is inserted into the slot. A second fixing plate is fixed between the other two connecting plates. Two guide rods are connected through the second fixing plate. A second spring is sleeved on the outer wall of the guide rod. One end of the guide rod is fixed to the outer wall of the insertion block. A second inclined sealing block is fixed to the bottom side wall of the second fixing plate. The top surface of the second inclined sealing block is an inclined structure, and the bottom surface of the insertion block is an inclined structure. The inclined structure of the second inclined sealing block and the inclined structure of the insertion block are fitted together. A sealing block is fixed on the inclined structure of the second inclined sealing block. The sealing block is inserted horizontally and sealed inside the liquid storage cavity. A clamping plate is fixed between the two connecting plates. The clamping plate is slidably connected inside the insertion block. One side of the clamping plate is inserted into the insertion cavity to fit and clamp the blood collection tube. The expansion and pushing assembly includes a horizontal pushing group that runs through the interior of the support column. The horizontal pushing group includes a guide push bolt that is slidably inserted into the interior of the support column. A third spring is sleeved on the outer wall of the guide push bolt. One end of the guide push bolt is fixed to a sliding top plate, and the other end of the guide push bolt runs through the interior of the first fixed frame. The other end of the guide push bolt is fixed to a second push plate. The second push plate and the push block are located on the same horizontal center line. A fixed support plate is fixed on the bottom surface of the second push plate. The bottom surface of the swing block near the fixed support plate has a stepped structure. The fixed support plate is pushed and moved by the second push plate to fit and stop inside the stepped structure of the fixed support plate.

2. The fully automatic blood extraction centrifugation device according to claim 1, characterized in that: The bottom surface of the lifting cover is fixed with multiple lifting plates along the circumferential direction. Rollers are rotatably connected to the bottom side wall of the lifting plates. The lifting cover is pushed by the first pneumatic rod and can be set to three states. In the first state, the hanging cover is attached to the top surface of the centrifuge chamber to seal the inside of the centrifuge chamber for blood centrifugation extraction; In the second state, the lifting cover rises to open the top of the centrifuge chamber, and the rollers rise to fit against the bottom of the tray. In the third state, the lifting cover rises further, the rollers push the tray up, so that the fixed assembly rises to the top of the centrifuge box, and the push ring pushes the spray assembly up.

3. A fully automated blood extraction centrifugation device according to claim 2, characterized in that: A first inclined sealing block is inserted horizontally inside the swing block. One side of the first inclined sealing block is enclosed inside the injection tank. The top surface of the first inclined sealing block is provided with an inclined structure. A first spring is connected between the side wall of the first inclined sealing block and the inside of the swing block. The bottom end of the injection assembly pushes the first inclined sealing block to move by descending, so as to open the injection tank.

4. The fully automatic blood extraction centrifugation device according to claim 3, characterized in that: The liquid injection assembly includes a second fixing frame fixed to the top surface of the lifting cover. A first water pump is installed on the top surface of the second fixing frame. A first liquid guide pipe is connected through one side of the first water pump to the inside of the liquid storage tank. A telescopic pipe is connected through the bottom surface of the first water pump. A control valve is connected to the bottom end of the telescopic pipe. An injection pipe is connected to the bottom surface of the control valve. The injection pipe passes through the inside of the lifting cover. A third push plate is fixed to the side wall of the control valve. A fourth pneumatic rod is installed on the side wall of the second fixing frame. The telescopic bottom end of the fourth pneumatic rod is connected to the top surface of the third push plate. The fourth pneumatic rod pushes the third push plate downward, causing the control valve to push the injection pipe down and insert it into the liquid injection tank.

5. A fully automated blood extraction centrifugation device according to claim 4, characterized in that: The extension and pushing assembly comprises a third pneumatic rod arranged inside the supporting column, eight groups of the flat pushing groups are arranged uniformly along the circumferential direction of the supporting column, one side of the flat pushing group is arranged through the first fixed frame, the third pneumatic rod is connected with a slide pushing column in a circular table structure at the top end, the slide pushing column is fixed with a blocking disc at the top end, eight slide pushing grooves are arranged uniformly along the circumferential direction of the side wall of the slide pushing column, the slide pushing grooves are in an inclined stepped structure, one side of the flat pushing group is slidably arranged in the slide pushing groove, and one side of the slide top plate is slidably connected in the slide pushing groove.

6. A fully automated blood extraction centrifugation device according to claim 5, characterized in that: The hanging sealing cover is provided with a positioning and pushing component on the bottom surface of the side close to the liquid injection pipe, the positioning and pushing component is used to push the second pushing plate, so that the positioning plate is translated and abuts against the stepped structure of the swing block; The positioning and pushing component comprises a first fixed plate fixed on the bottom surface of the hanging sealing cover, the bottom surface of the first fixed plate is fixed with a second pneumatic rod and a slide rail, the second pneumatic rod is connected with a first pushing plate at the top end, the first pushing plate is slidably connected in the slide rail, and the first pushing plate is at the same horizontal height as the second pushing plate when the hanging sealing cover is in the first state.

7. A fully automated blood extraction centrifugation device according to claim 6, characterized in that: The spray and washing assembly comprises a scraping and washing disc arranged on the top surface of the positioning ring, the outer wall of the scraping and washing disc is abutted against the inner wall of the limiting cylinder, the top surface of the scraping and washing disc is connected with a supporting cylinder in a penetrating mode, the outer wall of the top end of the supporting cylinder is sleeved with a spraying pipe in an annular structure, one side of the spraying pipe is connected with a second liquid guide pipe in a penetrating mode, the second liquid guide pipe is connected with the outside of the centrifugal machine box in a penetrating mode, one end of the second liquid guide pipe away from the spraying pipe is connected with a second water pump, the top surface of the second water pump is connected with the bottom surface of the liquid storage tank in a penetrating mode, the inner wall of the supporting cylinder is arranged in a gap with the side wall of the supporting column, a pushing ring is arranged at the bottom of the scraping and washing disc, the bottom surface of the scraping and washing disc is connected with a liquid discharge pipe in a penetrating mode, the bottom end of the liquid discharge pipe is connected with the bottom surface of the centrifugal machine box in a penetrating mode, a waste liquid box is inserted into the bottom surface of the centrifugal machine box, and the bottom end of the liquid discharge pipe is arranged in the waste liquid box.

8. A method of extraction centrifugation for a fully automated blood extraction centrifugation device, characterized by: The extraction and centrifugation method comprises the following steps: S1, inserting the blood collection tube; the first pneumatic rod is started to push the hanging sealing cover to rise to the third state, the centrifugal machine box is opened, the tray is pushed to rise by the roller, the whole centrifugal storage mechanism is lifted, eight groups of positioning assemblies are lifted higher than the centrifugal box, the third pneumatic rod is started to push the slide pushing column upwards, eight slide top plates move along the slide pushing groove, the slide pushing groove pushes the guide pushing bolt to translate, the guide pushing bolt compresses the third spring, the guide pushing bolt pushes the second pushing plate to translate, the positioning plate is inserted into the stepped bottom surface of the swing block to prevent the swing block from swinging on the first fixed frame, the second pushing plate continues to translate to push the pushing block into the insertion groove, the second pushing plate is abutted against the side wall of the swing block, the pushing block pushes the connecting plate, the clamping plate is pulled out of the insertion groove, the connecting plate pushes the second fixed plate to translate, the sealing block is translated to open the bottom of the liquid storage cavity and empty it; a plurality of blood collection tubes are inserted into the insertion grooves of the plurality of swing blocks, and the blood collection tubes are kept in position; the third pneumatic rod is started to pull the slide pushing column downwards to reset, the eight groups of flat pushing groups are reset, the swing block is reset, the liquid storage cavity is closed, the clamping plate is clamped on the side wall of the blood collection tube, and the swing block can swing flexibly in the first fixed frame; S2, liquid injection and balance; The first pneumatic rod is started to pull the hanging cover down to the first state, the hanging cover closes the top surface of the centrifuge box, and the internal temperature adjusting device is opened to cool down; the driving table is started to drive the rotating column to rotate, the rotating column pushes the centrifugal storage mechanism to rotate as a whole by the limiting plate, the insertion swing block without blood collection tube is rotated to the bottom of the liquid injection assembly, the driving table is closed, and the driving table is composed of a driving motor, a speed regulator and a timer; the first push plate is pushed by the second pneumatic rod, the first push plate slides along the slide rail and pushes the second push plate, the fixed support plate is inserted and blocked at the bottom surface of the step of the insertion swing block, and the stability of the insertion swing block is maintained; The first water pump and the fourth pneumatic rod are started, the cleaning liquid in the liquid storage tank is poured into the telescopic pipe through the first liquid guide pipe, the third push plate is pushed down by the fourth pneumatic rod, the injection pipe is pushed down by the control valve, the injection pipe pushes away the first inclined sealing block, and the injection pipe is inserted into the injection groove; the control valve is opened, the cleaning liquid is injected into the liquid storage cavity, then the injection pipe is pulled out, the first inclined sealing block blocks the injection groove, and the compensation of the weight of the insertion swing block is completed; S3, centrifugal extraction; The driving table is started to drive the rotating column to rotate at high speed, under the action of the centrifugal force, the insertion swing block drives the blood collection tube to overturn and tilt, and the centrifugal extraction effect on the blood in the blood collection tube is improved; S4, taking out and liquid discharge cleaning; After the centrifugal extraction is completed, the first pneumatic rod is started to push the hanging cover up to the second state, so that the roller just adheres to the bottom surface of the tray, then whether the blood collection tube is broken is observed; the second water pump is started to guide the cleaning liquid into the spray pipe to be sprayed out, and the spray pipe washes the inner wall of the limiting cylinder; the first pneumatic rod is started again to push the hanging cover up to the third state, the push ring pushes the scraping and cleaning disc up to scrape and clean the inner wall of the limiting cylinder; The third pneumatic rod is started to push the slide push column up, the blood collection tube is loosened by the clamping plate, and the blood collection tube is taken out; the liquid storage cavity is opened to discharge the cleaning liquid in the interior, and the cleaning liquid flows to the interior of the scraping and cleaning disc along the liquid flow groove, and the waste liquid is discharged to the interior of the waste liquid box through the liquid discharge pipe.

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