Liquid transfer device for full-automatic hemagglutination test

Abstract

The invention belongs to the technical field of medical instruments, and discloses a full-automatic blood coagulation test liquid transfer device which comprises a driving device, a suction mechanism is in transmission connection with the upper portion of the front face of the driving device, a barrel taking mechanism is fixedly connected to the lower surface of the suction mechanism, and a base is fixedly connected to the lower portion of the front face of the driving device. The suction mechanism moves downwards, so that the lower end of the pipetting barrel is located in the air inlet pipe and does not make contact with the fixing hole and the pipetting barrel, the suction pump works, air enters the air inlet pipe, the air inlet cavity and the air suction pipe from a gap between the pipetting barrel and the fixing hole, and finally the air is exhausted from the exhaust pipe; the sucked gas can drive residual liquid on the outer surface of the bottom end of the pipetting barrel to flow or drop, so that the residual liquid on the outer surface of the bottom end of the pipetting barrel is cleaned, and the problems that a solution is left at the bottom end of the outer surface of an existing pipetting barrel, the residual liquid enters the bottom end of the outer surface of the existing pipetting barrel at the same time during liquid injection, and the test accuracy is reduced are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a fully automatic liquid transfer device for blood coagulation test. Background Art

[0002] Coagulation assays are a series of tests used to evaluate blood coagulation function. These tests are mainly used to diagnose coagulation disorders, monitor the effect of anticoagulant therapy, and evaluate the coagulation status of patients.

[0003] The current hemagglutination test requires the configuration of step concentration reagents for the test, and requires continuous pipetting operations. When the existing hemagglutination test liquid transfer device is performing the pipetting operation, in order to avoid the generation of bubbles during the pipetting process, the bottom of the pipette tube needs to be inserted into the solution for injection or extraction, which will cause a certain amount of solution to remain at the bottom of the outer surface of the pipette tube. When the liquid is injected, the residual liquid will enter at the same time, thereby reducing the accuracy of the test. Secondly, when the pipette tube moves up and down, the residual solution will drip everywhere, thereby polluting the test environment. Summary of the invention

[0004] The object of the present invention is to provide a fully automatic liquid transfer device for blood coagulation test to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: A fully automatic liquid transfer device for blood coagulation test, comprising a driving device, a suction mechanism is transmission-connected to the upper front of the driving device, a tube-taking mechanism is fixedly connected to the lower surface of the suction mechanism, a base is fixedly connected to the lower front of the driving device, a driving motor is fixedly installed on the front of the base, the output shaft of the driving motor is fixedly connected to a transmission shaft, two transmission wheels are fixedly connected to the curved surface of the transmission shaft, a sliding plate is slidably connected to the upper surface of the base, two racks are fixedly connected to the lower surface of the sliding plate, a cleaning box, a plurality of fixed seats, and a plurality of limit seats are fixedly connected to the upper surface of the sliding plate, a microplate is fixedly connected to the middle of the plurality of fixed seats, a liquid storage box is movably installed in the middle of the plurality of limit seats, a fixed plate is clamped on the upper surface of the cleaning box, a plurality of equidistantly arranged fixing holes are opened in the middle of the fixing plate, and a pipette is movably installed in the middle of the fixing hole.

[0006] Preferably, the pipette cylinder mechanism includes a mounting plate, wherein a plurality of equally spaced mounting holes are formed inside the mounting plate, a support plate is fixedly connected inside the mounting holes, a sliding rod is fixedly connected to the lower part of the support plate, a sealing plug is slidably connected to the bottom of the sliding rod, a return spring is fixedly connected between the sealing plug and the support plate, a plurality of circumferentially equally spaced sliding grooves are arranged below the inside of the mounting holes, a rectangular electromagnet is fixedly installed at the bottom of the sliding grooves, a limiting pin is slidably connected inside the sliding grooves, and a permanent magnet is fixedly installed at the bottom of the limiting pin.

[0007] Preferably, the cleaning box includes a box body, a suction pump is fixedly installed at the bottom of the box body, an exhaust pipe is fixedly connected to the front of the suction pump, an air suction pipe is fixedly connected to the back of the suction pump, a control valve is fixedly installed above the inside of the air suction pipe, a connecting plate is fixedly connected to the front of the control valve, a plurality of air inlet cavities are formed inside the connecting plate, a plurality of linearly equally spaced air inlet pipes are fixedly connected to the upper part of the air inlet cavities, a sealing ring is fixedly connected to the top end of the air inlet pipe, and the box body is fixedly connected to the upper surface of the sliding plate.

[0008] Preferably, the suction hole of the suction mechanism is communicated with the mounting hole, and the lower surface of the suction mechanism is fixedly connected to the mounting plate and the sealing performance between the two is good.

[0009] Preferably, the air suction pipe, the connecting plate and the inner wall of the box body are fixedly connected, the air inlet pipe is adapted to the pipette cylinder, the air inlet pipe is located directly below the fixing hole, the upper surface of the sealing ring abuts against the lower surface of the fixing plate and the sealing performance between the two is good, and the sealing performance between the box body and the fixing plate is good.

[0010] Preferably, the fixing hole is adapted to the pipette cylinder, the rack is engaged with the transmission wheel directly below, and the sealing rings are all made of elastic materials.

[0011] Preferably, the fixing seat is located in the middle of the sliding plate, the transmission shaft is rotatably connected to the base, the cleaning box is located on the left side of the fixing seat, and the limiting seat is located on the right side of the fixing seat.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. By moving the suction mechanism downward, the lower end of the pipette cylinder is located inside the air inlet pipe but does not contact the fixing hole and the pipette cylinder. When the suction pump works, air enters the air inlet pipe, the air inlet cavity, and the air suction pipe from the gap between the pipette cylinder and the fixing hole, and finally is discharged from the exhaust pipe. The sucked gas will drive the liquid remaining on the outer surface of the bottom end of the pipette cylinder to flow or drip, thereby cleaning the liquid remaining on the outer surface of the bottom end of the pipette cylinder, thus solving the problem that the bottom end of the outer surface of the existing pipette cylinder will remain with solution, and the remaining liquid enters simultaneously during liquid injection, reducing the test accuracy.

[0014] 2. When configuring step concentration reagents and absorbing solutions, the present invention changes the opening state of the control valve, and the suction pump works. Air enters the air inlet pipe, the air inlet cavity, and the air suction pipe from the gap between the pipette and the fixed hole, and is finally discharged from the exhaust pipe, thereby solving the problem that the residual solution will drip everywhere during the up and down movement of the pipette, thereby polluting the test environment; at the same time, the used pipette is placed inside the fixed hole and the two are in close contact, so that the air sucked by the suction pump cleans the inside of the pipette, thereby solving the problem that the pipette needs to be replaced many times during the existing pipetting, and the pipette cannot be reused, which not only causes waste but also cumbersome operation steps.

[0015] 3. The present invention continues to move downward after the upper surface of the pipette cylinder contacts the sealing plug. The upper protrusion of the pipette cylinder will push the sealing plug to move upward and cause the sealing plug to squeeze the reset spring. When the upper cone of the pipette cylinder fits with the mounting hole, the rectangular electromagnet is energized to generate a force that repels the permanent magnet, causing the permanent magnet to push the limit pin to move along the sliding groove until the limit pin holds the pipette cylinder. Since the upward force provided by the limit pin is greater than the thrust of the reset spring, the pipette cylinder is tightly fitted with the mounting hole, so that all the pipette cylinders are clamped; the rectangular electromagnet is reversely energized to generate a magnetic field that attracts the permanent magnet, causing the limit pin to hide inside the sliding groove, and the reset spring pushes the sealing plug downward, so that the pipette cylinder is located on the upper surface of the fixed plate, thereby quickly completing the replacement of the pipette cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the appearance structure of the present invention;

[0017] Figure 2 A half-section schematic diagram of the base of the present invention;

[0018] Figure 3 It is a cross-sectional schematic diagram of a fixing plate of the present invention;

[0019] Figure 4 It is a cross-sectional schematic diagram of the cleaning box of the present invention;

[0020] Figure 5 A half-section schematic diagram of the air intake chamber of the present invention;

[0021] Figure 6 It is a cross-sectional schematic diagram of the tube taking mechanism of the present invention;

[0022] Figure 7 It is a half-section schematic diagram of the mounting hole of the present invention.

[0023] In the figure: 1, driving device; 2, suction mechanism; 3, cartridge taking mechanism; 31, mounting plate; 32, mounting hole; 33, support plate; 34, sliding rod; 35, sealing plug; 36, return spring; 37, sliding groove; 38, rectangular electromagnet; 39, limit pin; 310, permanent magnet; 4, base; 5, driving motor; 6, transmission shaft; 7, transmission wheel; 8, sliding plate; 9, rack; 10, cleaning box; 101, box body; 102, suction pump; 103, exhaust pipe; 104, suction pipe; 105, control valve; 106, connecting plate; 107, intake cavity; 108, intake pipe; 109, sealing ring; 11, fixed seat; 12, limit seat; 13, microplate; 14, liquid storage box; 15, fixing plate; 16, fixing hole; 17, pipetting cylinder. Detailed implementation manners

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] As Figures 1 to 7As shown, an embodiment of the present invention provides a fully automatic liquid transfer device for blood coagulation test, including a driving device 1, a suction mechanism 2 is drivingly connected to the upper front of the driving device 1, a tube taking mechanism 3 is fixedly connected to the lower surface of the suction mechanism 2, a base 4 is fixedly connected to the lower front of the driving device 1, a driving motor 5 is fixedly installed on the front of the base 4, an output shaft of the driving motor 5 is fixedly connected to a transmission shaft 6, a curved surface of the transmission shaft 6 is fixedly connected to two transmission wheels 7, a sliding plate 8 is slidably connected to the upper surface of the base 4, two racks 9 are fixedly connected to the lower surface of the sliding plate 8, a cleaning box 10 is fixedly connected to the upper surface of the sliding plate 8, A fixing seat 11 and a plurality of limiting seats 12, a microplate 13 is fixedly connected to the middle of the plurality of fixing seats 11, a liquid storage box 14 is movably installed in the middle of the plurality of limiting seats 12, a fixing plate 15 is clamped on the upper surface of the cleaning box 10, a plurality of equidistantly arranged fixing holes 16 are opened in the middle of the fixing plate 15, a pipette 17 is movably installed in the middle of the fixing hole 16, and the tube taking mechanism 3 includes a mounting plate 31, a plurality of equidistantly arranged mounting holes 32 are opened inside the mounting plate 31, a support plate 33 is fixedly connected inside the mounting hole 32, a sliding rod 34 is fixedly connected to the lower part of the support plate 33, and a sealing plug is slidably connected to the bottom of the sliding rod 34 35, a reset spring 36 is fixedly connected between the sealing plug 35 and the support plate 33, a plurality of sliding grooves 37 are arranged equidistantly around the inner bottom of the mounting hole 32, a rectangular electromagnet 38 is fixedly installed at the bottom of the sliding groove 37, a limit pin 39 is slidably connected to the inner part of the sliding groove 37, a permanent magnet 310 is fixedly installed at the bottom of the limit pin 39, and its function is that the present invention continues to move downward after the upper surface of the pipette cylinder 17 contacts with the sealing plug 35, and the upper protrusion of the pipette cylinder 17 will push the sealing plug 35 to move upward and squeeze the reset spring 36. When the upper truncated cone of the pipette cylinder 17 fits with the mounting hole 32, the rectangular electromagnet 38 is fixedly installed at the bottom of the sliding groove 37, and the limit pin 39 is slidably connected to the inner part of the sliding groove 37. A permanent magnet 310 is fixedly installed at the bottom of the limit pin 39. The rectangular electromagnet 38 is energized to generate a force that repels the permanent magnet 310, so that the permanent magnet 310 pushes the limit pin 39 to move along the sliding groove 37 until the limit pin 39 presses against the pipette tube 17. Since the upward force provided by the limit pin 39 is greater than the thrust of the reset spring 36, the pipette tube 17 is tightly fitted with the mounting hole 32, so that all the pipette tubes 17 are clamped; the rectangular electromagnet 38 is reversely energized to generate a magnetic field that attracts the permanent magnet 310, so that the limit pin 39 is hidden inside the sliding groove 37, and the reset spring 36 pushes the sealing plug 35 downward, so that the pipette tube 17 is located on the upper surface of the fixed plate 15, thereby quickly completing the replacement of the pipette tube 17.

[0026] Among them, the cleaning box 10 includes a box body 101. A suction pump 102 is fixedly installed at the bottom of the box body 101. An exhaust pipe 103 is fixedly connected to the front of the suction pump 102. An air suction pipe 104 is fixedly connected to the back of the suction pump 102. A control valve 105 is fixedly installed above the inside of the air suction pipe 104. A connecting plate 106 is fixedly connected to the front of the control valve 105. A plurality of air inlet cavities 107 are formed inside the connecting plate 106. A plurality of air inlet pipes 108 arranged linearly and equidistantly are fixedly connected to the upper part of the air inlet cavity 107. The top of the air inlet pipe 108 is fixedly connected with a sealing ring 109. The box body 101 is fixedly connected to the upper surface of the sliding plate 8. The air suction pipe 104, the connecting plate 106 and the inner wall of the box body 101 are fixedly connected. The air inlet pipe 108 is adapted to the pipette cylinder 17. The air inlet pipe 108 is located directly below the fixing hole 16. The upper surface of the sealing ring 109 abuts against the lower surface of the fixing plate 15 and the sealing between them is good. The sealing between the box body 101 and the fixing plate 15 is good. Its function is that when the suction mechanism 2 moves downward, the lower end of the pipette cylinder 17 is located inside the air inlet pipe 108, but does not contact the fixing hole 16 and the pipette cylinder 17. When the suction pump 102 works, air enters the air inlet pipe 108, the air inlet cavity 107, and the air suction pipe 104 from the gap between the pipette cylinder 17 and the fixing hole 16, and finally is discharged from the exhaust pipe 103. The sucked gas will drive the liquid remaining on the outer surface of the bottom end of the pipette cylinder 17 to flow or drip, so as to clean the liquid remaining on the outer surface of the bottom end of the pipette cylinder, thus solving the problem that the bottom end of the outer surface of the existing pipette cylinder will remain with solution, and the remaining liquid will enter simultaneously during liquid injection, reducing the test accuracy.

[0027] Among them, the suction hole of the suction mechanism 2 is communicated with the installation hole 32. The lower surface of the suction mechanism 2 is fixedly connected to the mounting plate 31 and the sealing between them is good. Its function is that when the driving device 1 works to drive the suction mechanism 2 to move up and down, after the pipette cylinder 17 is installed inside the installation hole 32, the suction mechanism 2 works to suck a target amount of solution into the pipette cylinder 17 through the installation hole 32, or push out the target amount of solution inside the pipette cylinder 17.

[0028] Among them, the fixing hole 16 is adapted to the pipette cylinder 17. The rack 9 meshes with the transmission wheel 7 directly below. The sealing rings 109 are all made of elastic materials. The fixing seat 11 is located in the middle of the sliding plate 8. The transmission shaft 6 is rotatably connected to the base 4. The cleaning box 10 is located on the left side of the fixing seat 11. The limiting seat 12 is located on the right side of the fixing seat 11. Its function is that when the driving motor 5 works and its output shaft rotates slowly in the forward direction, the transmission shaft 6 is driven to rotate, and the transmission shaft 6 drives the transmission wheel 7 to rotate, so that the sliding plate 8 moves to the right through the rack 9; when the driving motor 5 works and its output shaft rotates slowly in the reverse direction, the sliding plate 8 moves to the left through the rack 9. In this way, the positions of the box body 101, the fixing plate 15, the liquid storage box 14, and the microplate 13 on the upper surface of the sliding plate 8 are changed.

[0029] Working principle:

[0030] Before the present invention is used, the solution used for the blood coagulation test is added to the interior of the plurality of liquid storage boxes 14, and the permanent magnet 310 is in contact with the rectangular electromagnet 38;

[0031] When the present invention is used, the liquid storage box 14 containing an appropriate amount of plasma is installed in the middle of the plurality of limit seats 12, the drive motor 5 is operated and its output shaft rotates slowly in the positive direction, thereby driving the transmission shaft 6 to rotate, and the transmission shaft 6 rotates with the transmission wheel 7, thereby moving the sliding plate 8 to the right through the rack 9. When all the pipette cylinders 17 are located directly below the corresponding mounting holes 32, the drive motor 5 stops rotating, the drive device 1 works to drive the suction mechanism 2 to move downward, and when the upper surface of the pipette cylinder 17 contacts the sealing plug 35 and continues to move downward, the pipette cylinder 17 The upper protrusion will push the sealing plug 35 to move upward and make the sealing plug 35 squeeze the reset spring 36. When the upper truncated cone of the pipette cylinder 17 fits with the mounting hole 32, the driving device 1 stops working, and the rectangular electromagnet 38 is energized to generate a force that repels the permanent magnet 310, so that the permanent magnet 310 pushes the limit pin 39 to move along the sliding groove 37 until the limit pin 39 holds the pipette cylinder 17. Since the upward force provided by the limit pin 39 is greater than the thrust of the reset spring 36, the pipette cylinder 17 fits tightly with the mounting hole 32, so that all the pipette cylinders 17 are clamped.

[0032] The driving device 1 works to reset the suction mechanism 2, and drives all the pipette cylinders 17 to move upward. The driving motor 5 works to slowly rotate in the reverse direction, so that the sliding plate 8 moves to the left until the liquid storage box 14 containing an appropriate amount of plasma is located directly below the suction mechanism 2. All the pipette cylinders 17 move down to below the plasma liquid level but do not contact the bottom of the liquid storage box 14. The suction mechanism 2 works to absorb the target amount of plasma solution into the interior of the pipette cylinder 17 through the mounting hole 32. Then the suction mechanism 2 resets upward, and the sliding plate 8 moves to the right so that the fixed plate 15 is located at the suction mechanism 2, the suction mechanism 2 moves downward, so that the lower end of the pipette cylinder 17 is located inside the air inlet pipe 108, but does not touch the fixing hole 16 and the pipette cylinder 17, the control valve 105 is in a state of connecting all the air inlet cavities 107 with the suction pipe 104, the suction pump 102 works, and the air enters the air inlet pipe 108, the air inlet cavity 107, and the suction pipe 104 from the gap between the pipette cylinder 17 and the fixing hole 16, and is finally discharged from the exhaust pipe 103. During the process, the liquid remaining on the outer surface of the bottom end of the pipette cylinder 17 will be driven by the inhaled gas to be cleaned;

[0033] The suction mechanism 2 resets upward. The sliding plate 8 moves leftward so that the microplate 13 is positioned directly below the suction mechanism 2. The suction mechanism 2 moves downward. When it reaches an appropriate position directly above the micropores of the microplate 13 at the bottom end of the pipette cylinder 17, the suction mechanism 2 operates to inject the plasma inside the pipette cylinder 17 into the micropores directly below. After the injection is completed, the suction mechanism 2 resets upward. When the sliding plate 8 moves, the fixing plate 15 is positioned directly below the suction mechanism 2. The suction mechanism 2 moves downward, causing the pipette cylinder 17 to be located inside the fixing hole 16 and in close contact with each other. Subsequently, the rectangular electromagnet 38 is energized in the reverse direction to generate a magnetic field that attracts the permanent magnet 310, causing the limit pin 39 to retract into the inside of the sliding groove 37. The return spring 36 pushes the sealing plug 35 downward, so that the pipette cylinder 17 is located on the upper surface of the fixing plate 15. The sealing plug 35 also seals the middle part of the mounting hole 32. Subsequently, the suction mechanism 2 resets, and the suction pump 102 operates. Gas enters the intake pipe 108 through the inside of the pipette cylinder 17, thereby cleaning the inside of the pipette cylinder 17. The liquid storage box 14 containing the solution for subsequent use is fixed in the middle of the plurality of limit seats 12. The sliding plate 8 moves leftward appropriately so that the rightmost row of pipette cylinders 17 is vertically aligned with the mounting holes 32 in the leftmost row. The suction mechanism 2 moves downward. The rectangular electromagnet 38 is energized to generate a force that repels the permanent magnet 310, thereby clamping the rightmost row of pipette cylinders 17. Subsequently, the clamped pipette cylinders 17 suck the target amount of the solution for subsequent use, thereby preparing a stepped concentration reagent for the experiment;

[0034] When preparing the stepped concentration reagent, to prevent the generation of bubbles, the bottom end of the pipette cylinder 17 will be located below the liquid level of the solution in the micropores of the microplate 13 for repeated inhalation and injection, so as to achieve the purpose of mixing. Before mixing the solution of the next gradient, the control valve 105 is in a state where the rightmost intake chamber 107 is connected to the suction pipe 104. The suction pump 102 operates to clean the solution adhering to the outer surface of the bottom end of the pipette cylinder 17, thereby ensuring the accuracy of the experiment.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic liquid transfer device for blood coagulation test, comprising a driving device (1), wherein a suction mechanism (2) is connected to the upper front of the driving device (1), characterized in that: The lower surface of the suction mechanism (2) is fixedly connected to a cylinder picking mechanism (3). Below the front surface of the driving device (1), a base (4) is fixedly connected. A driving motor (5) is fixedly installed on the front surface of the base (4). The output shaft of the driving motor (5) is fixedly connected to a transmission shaft (6). Two transmission wheels (7) are fixedly connected to the curved surface of the transmission shaft (6). A sliding plate (8) is slidably connected to the upper surface of the base (4). Two racks (9) are fixedly connected to the lower surface of the sliding plate (8). A cleaning box (10), a plurality of fixing seats (11), and a plurality of limiting seats (12) are fixedly connected to the upper surface of the sliding plate (8). A microporous plate (13) is fixedly connected to the middle of the plurality of fixing seats (11). A liquid storage box (14) is movably installed in the middle of the plurality of limiting seats (12). A fixing plate (15) is snap-connected to the upper surface of the cleaning box (10). A plurality of equally spaced fixing holes (16) are opened in the middle of the fixing plate (15). A pipetting cylinder (17) is movably installed in the middle of the fixing hole (16).

2. The liquid transfer device for automatic blood coagulation test according to claim 1, characterized in that: The cylinder picking mechanism (3) includes a mounting plate (31). A plurality of equally spaced mounting holes (32) are opened inside the mounting plate (31). A support plate (33) is fixedly connected inside the mounting hole (32). A sliding rod (34) is fixedly connected to the lower part of the support plate (33). A sealing plug (35) is slidably connected to the bottom of the sliding rod (34). A return spring (36) is fixedly connected between the sealing plug (35) and the support plate (33). A plurality of circumferentially equally spaced sliding grooves (37) are provided below the inside of the mounting hole (32). A rectangular electromagnet (38) is fixedly installed at the bottom of the sliding groove (37). A limiting pin (39) is slidably connected inside the sliding groove (37). A permanent magnet (310) is fixedly installed at the bottom of the limiting pin (39).

3. The liquid transfer device for fully automatic blood coagulation test according to claim 2, wherein: The cleaning box (10) includes a box body (101). A suction pump (102) is fixedly installed at the bottom of the box body (101). An exhaust pipe (103) is fixedly connected to the front surface of the suction pump (102). An air suction pipe (104) is fixedly connected to the back surface of the suction pump (102). A control valve (105) is fixedly installed above the inside of the air suction pipe (104). A connecting plate (106) is fixedly connected to the front surface of the control valve (105). A plurality of air inlet cavities (107) are opened inside the connecting plate (106). A plurality of linearly equally spaced air inlet pipes (108) are fixedly connected to the upper part of the air inlet cavity (107). The top end of the air inlet pipe (108) is fixedly connected to a sealing ring (109). The box body (101) is fixedly connected to the upper surface of the sliding plate (8).

4. The liquid transfer device for automatic blood coagulation test according to claim 3, wherein: The suction hole of the suction mechanism (2) is communicated with the mounting hole (32). The lower surface of the suction mechanism (2) is fixedly connected to the mounting plate (31) and the sealing performance between the two is good.

5. The liquid transfer device for the full-automatic blood coagulation test according to claim 4, wherein: The suction pipe (104), the connecting plate (106) are fixedly connected to the inner wall of the box body (101). The air inlet pipe (108) is adapted to the pipette cylinder (17). The air inlet pipe (108) is located directly below the fixing hole (16). The upper surface of the sealing ring (109) abuts against the lower surface of the fixing plate (15) and the sealing performance between the two is good. The sealing performance between the box body (101) and the fixing plate (15) is good.

6. The liquid transfer device for fully automatic blood coagulation test according to claim 5, wherein: The fixing hole (16) is adapted to the pipette cylinder (17). The rack (9) meshes with the transmission wheel (7) directly below it. The sealing rings (109) are all made of elastic materials.

7. The liquid transfer device for the full-automatic blood coagulation test according to claim 6, characterized in that: The fixing seat (11) is located in the middle of the sliding plate (8). The transmission shaft (6) is rotatably connected to the base (4). The cleaning box (10) is located on the left side of the fixing seat (11). The limiting seat (12) is located on the right side of the fixing seat (11).

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