Method and equipment for batch cap screwing of cryopreservation tubes

Abstract

The invention discloses a method and equipment for batch cap screwing of cryopreservation tubes. The method comprises the following steps: transferring a cryopreservation tube frame bearing the cryopreservation tubes to be subjected to cap screwing to a cap screwing station below a cryopreservation tube batch cap screwing mechanism through a cryopreservation tube frame in-out driving mechanism; a cover screwing lifting driving mechanism is used for controlling a cryopreservation tube batch cover screwing mechanism to move downwards to be in butt joint with the cryopreservation tubes to be subjected to cover screwing in the cryopreservation tube frame located at the cover screwing station; a cap screwing driving motor of the cryopreservation tube batch cap screwing mechanism is controlled to drive a cap screwing assembly of the cryopreservation tube batch cap screwing mechanism to rotate so as to conduct cap screwing on the cryopreservation tubes to be subjected to cap screwing in the cryopreservation tube frame of the cap screwing station at the same time, and cap bodies of the cryopreservation tubes are loosened; and after the cover bodies of the cryopreservation tubes in the cryopreservation tube frame are loosened, a cover withdrawing assembly of the cryopreservation tube batch cover screwing mechanism is controlled to withdraw the cover bodies on the cover screwing heads of the cover screwing assembly. A plurality of cryopreservation tubes can be uncovered at the same time in a short time, efficiency is improved, and errors caused by manual operation are reduced.

Description

Technical Field

[0001] The invention relates to a method and equipment for screwing caps on batches of cryopreservation tubes, belonging to the technical field of cryopreservation tube processing. Background Art

[0002] Cryotubes are containers used to store biological samples (such as cells, tissues, bacteria, viruses, etc.) at low temperatures. They are usually made of low-temperature resistant materials, such as polypropylene. Cryotubes can store samples for a long time in ultra-low temperature environments such as liquid nitrogen to ensure the activity and stability of the samples. They generally have different specifications and capacities to meet different experimental needs. They are widely used in biomedical research, clinical testing and other fields.

[0003] At present, in a low-temperature environment, the cap and the tube body of the cryotube may stick together due to water condensation or sample seepage, and it may be difficult to open. This is especially true when the hand strength is limited or the tools used are inappropriate. In addition, a large number of cryotube samples are stored in many biological laboratories or biological sample banks. For example, when conducting large-scale cell culture experiments, it may be necessary to revive dozens or even hundreds of cell cryotubes at the same time. If the method of opening the caps one by one is adopted, it will take a lot of time. For some samples that are sensitive to time and environmental changes, if the caps cannot be opened in batches, the samples may differ due to the long time interval between opening the caps. Summary of the invention

[0004] To this end, the present invention provides a method and equipment for batch capping of cryogenic tubes, which realizes batch capping of cryogenic tubes to solve the problems of low efficiency of single capping and easy sample differences due to long time interval between capping.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a method for capping cryopreservation tubes in batches, comprising the following steps:

[0006] The cryotube rack carrying the cryotubes to be capped is transferred to the capping station below the cryotube batch capping mechanism by the cryotube rack in-and-out driving mechanism;

[0007] The cryotube batch capping mechanism is controlled by the capping lifting drive mechanism to move downward to dock with the cryotubes to be capped in the cryotube rack at the capping station;

[0008] Controlling the capping drive motor of the cryotube batch capping mechanism to drive the capping assembly of the cryotube batch capping mechanism to rotate, so as to simultaneously cap the cryotubes to be capped in the cryotube rack of the capping station, so as to loosen the caps of the cryotubes;

[0009] When the caps of the cryotubes in the cryotube rack are loosened, the cap-removing assembly of the cryotube batch capping mechanism is controlled to remove the caps on the capping heads of the capping assembly.

[0010] As a preferred solution for the batch capping method for cryopreservation tubes, the time for the cryopreservation tube rack in-and-out drive mechanism to move to the capping station is set to T1, the time for the capping lifting drive mechanism to complete docking is set to T2, the time for the capping assembly to open the cap is set to T3, and the time for the capping assembly to retract the cap is set to T4;

[0011] Define the state variables:

[0012] S1: Whether the cryotube rack in-and-out drive mechanism has reached the capping station. If it has not reached the capping station, the initial value is 0, and it becomes 1 after reaching the capping station.

[0013] S2: Whether the rotary cover lifting drive mechanism has completed docking, the initial value is 0, and it becomes 1 after completion;

[0014] S3: Whether the capping assembly has completed opening the cap, the initial value is 0, and it becomes 1 after completion;

[0015] S4: Whether the cover removal component has completed the cover removal, the initial value is 0, and it becomes 1 after completion;

[0016] The control strategies of the freezing tube rack in-and-out drive mechanism, the capping lifting drive mechanism, and the freezing tube batch capping mechanism are as follows:

[0017] When time t=T1, check whether the cryotube rack has accurately reached the capping station. If it has, set S1=1, otherwise report an error and stop the capping process;

[0018] When S1=1, start the capping lifting drive mechanism. When time t=T1+T2, check whether the docking is successful. If successful, set S2=1. Otherwise, report an error and stop the capping process.

[0019] When S2=1, start the capping assembly to open the cap. When the time t=T1+T2+T3, check whether the capping is completed. If it is completed, set S3=1, otherwise report an error and stop the capping process.

[0020] When S3=1, start the cover-removing component to remove the cover. When the time t=T1+T2+T3+T4, check whether the cover-removing is completed. If it is completed, set S4=1 and the capping control process ends. Otherwise, report an error and stop the capping process.

[0021] When the capping process is completed, the control state variables S1, S2, S3, and S4 are reset to the initial values.

[0022] As a preferred solution of the method for batch capping of cryopreservation tubes, during the control process of the cryopreservation tube rack in-and-out drive mechanism, the capping lifting drive mechanism, and the cryopreservation tube batch capping mechanism:

[0023] After the specified action is completed, the sensor detects whether the action is in place, and an alarm is issued if it is not in place;

[0024] Set a waiting time t between set actions b , and set a time threshold. If the execution time of the specified action exceeds the time threshold, an exception prompt will be issued.

[0025] The present invention also provides a cryogenic tube batch capping device, which adopts the above-mentioned cryogenic tube batch capping method, comprising an outer shell, a side of which is formed with a cryogenic tube rack inlet and outlet, a neutral plate is provided inside the outer shell, and a cryogenic tube rack drive avoidance opening is formed at the bottom of the neutral plate; and further comprises a cryogenic tube rack inlet and outlet drive mechanism, a capping lifting drive mechanism and a cryogenic tube batch capping mechanism;

[0026] The cryotube rack in-and-out drive mechanism is arranged at the inner bottom of the outer shell, and the cryotube rack in-and-out drive mechanism includes a cryotube rack tray, and the cryotube rack tray passes through the cryotube rack drive avoidance opening, and a cryotube rack placement groove is formed at the end of the cryotube rack tray;

[0027] The rotary cover lifting drive mechanism comprises a lifting drive motor and a lifting slide rail, wherein the lifting drive motor is fixed on one side of the neutral plate, and the lifting slide rail is fixed on the other side of the neutral plate;

[0028] The cryotube batch capping mechanism is connected to the lifting rail via a lifting slider, and the cryotube rack in-and-out driving mechanism transfers the cryotube rack in the cryotube rack placement slot to the bottom of the cryotube batch capping mechanism;

[0029] The lifting drive motor is also connected to the cryogenic tube batch capping mechanism via a lifting transmission belt, and the lifting drive motor drives the cryogenic tube batch capping mechanism to move up and down along the lifting slide rail via the lifting transmission belt;

[0030] The cryotube batch capping mechanism moves downward to dock and unscrew the cryotube caps placed in the cryotube rack on the cryotube rack placement slot.

[0031] As a preferred solution for the cryopreservation tube batch capping equipment, the cryopreservation tube rack in-and-out driving mechanism also includes a cryopreservation tube rack in-and-out driving motor, a cryopreservation tube rack in-and-out driving rack, a cryopreservation tube rack in-and-out transmission slide rail and a cryopreservation tube rack in-and-out transmission slider;

[0032] The freezing tube rack in-and-out drive motor is fixed to the side of the neutral plate, the freezing tube rack in-and-out drive rack is fixed to the bottom of the freezing tube rack tray, and the driving end of the freezing tube rack in-and-out drive motor is meshed with the freezing tube rack in-and-out drive rack through a gear;

[0033] The freezing tube rack in-and-out transmission slide rail is fixed to the bottom of the outer shell, and the freezing tube rack in-and-out transmission slide rail is connected to the freezing tube rack tray through the freezing tube rack in-and-out transmission slider.

[0034] As a preferred solution for the batch capping equipment for cryopreservation tubes, the cryopreservation tube rack tray is formed with a transmission avoidance bar hole, and the driving end of the cryopreservation tube rack in-and-out driving motor passes through the transmission avoidance bar hole and then meshes with the cryopreservation tube rack in-and-out driving rack through a gear;

[0035] An escape gap is formed between the freezing tube rack in-and-out drive motor and the upper end surface of the freezing tube rack tray.

[0036] As a preferred solution for the batch capping equipment for cryopreservation tubes, the lifting drive motor of the capping lifting drive mechanism is a double-axis electric motor; the capping lifting drive mechanism also includes a first transmission idler wheel, a first tensioning wheel, a second tensioning wheel, a second transmission idler wheel and a transmission belt fixing seat;

[0037] The first transmission idler wheel, the first tensioner wheel, and the second tensioner wheel are all connected to the side of the neutral plate, and the second transmission idler wheel is arranged at the bottom of the outer shell;

[0038] One end of the lifting transmission belt is connected to the upper part of the transmission belt fixing seat, and the other end of the lifting transmission belt is connected to the lower part of the transmission belt fixing seat after passing through the first transmission idler wheel, the first tensioner wheel, the driving wheel of the lifting drive motor, the second tensioner wheel, and the second transmission idler wheel.

[0039] As a preferred solution for the cryopreservation tube batch capping equipment, the cryopreservation tube batch capping mechanism includes a batch capping installation stand, a batch capping installation top plate, a batch capping transmission support plate, a capping drive motor and a capping assembly;

[0040] The upper part of the batch screw cap mounting seat is connected to the batch screw cap mounting top plate, the transmission belt fixing seat is connected to the outer side of the top end of the batch screw cap mounting seat, the batch screw cap transmission support plate is connected to the inner side of the middle part of the batch screw cap mounting seat, and the batch screw cap transmission support plate is located below the batch screw cap mounting seat; the screw cap driving motor is arranged at the upper end of the batch screw cap mounting top plate; the screw cap driving motor is connected to the screw cap assembly, and the screw cap assembly passes through the batch screw cap mounting top plate and the batch screw cap transmission support plate.

[0041] As a preferred solution for the batch capping equipment for cryopreservation tubes, the capping assembly includes a capping end gear, a shifting gear transmission shaft, a shifting gear body, a clutch shaft and a capping head;

[0042] The capping end gear is meshed with the driving end gear of the capping drive motor, the upper end of the shifting gear transmission shaft is connected to the capping end gear, the lower part of the shifting gear transmission shaft passes through the batch capping installation top plate and is connected to the top of the shifting gear body; the shifting gear body is matched with the top clutch groove of the clutch shaft; the clutch shaft passes through the batch capping transmission support plate, and the capping head is connected to the lower end of the clutch shaft;

[0043] The number of the screw capping components is M×N, where M is the number of columns and N is the number of rows;

[0044] Every four of the rotary capping assemblies are equipped with a rotary capping driving motor, and the driving end gear of one of the rotary capping driving motors is meshed with the rotary capping end gears of four adjacent rotary capping assemblies at the same time.

[0045] As a preferred solution of the cryopreservation tube batch capping equipment, the cryopreservation tube batch capping mechanism also includes a capping withdrawal assembly; the capping withdrawal assembly includes a capping withdrawal motor mounting plate, a capping withdrawal drive motor, a first capping withdrawal adapter plate, a second capping withdrawal adapter plate, a capping withdrawal plate body, and capping withdrawal upper and lower guide rails;

[0046] The cover-removing motor mounting plate is connected to the front part of the batch cover-screwing mounting stand, and the cover-removing driving motor is connected to the cover-removing motor mounting plate; the first cover-removing adapter plate is connected to the driving end of the cover-removing driving motor, and the second cover-removing adapter plate is connected to the first cover-removing adapter plate;

[0047] The cover-removing plate body is connected to the lower end of the second cover-removing adapter plate, the cover-screwing head is located below the cover-removing plate body, and the clutch shaft passes through the cover-removing plate body and is inserted into the cover-screwing head;

[0048] The upper and lower guide rails for withdrawing covers are connected to the side of the batch cover screwing installation stand, and the second cover withdrawing adapter plate is connected to the upper and lower guide rails for withdrawing covers via upper and lower slide blocks for withdrawing covers.

[0049] The present invention has the following advantages: a freezing tube rack carrying the freezing tubes to be capped is transferred to a capping station below a freezing tube batch capping mechanism through a freezing tube rack in-and-out driving mechanism; a capping lifting driving mechanism is used to control the freezing tube batch capping mechanism to move downward and dock with the freezing tubes to be capped in the freezing tube rack at the capping station; a capping driving motor of the freezing tube batch capping mechanism is controlled to drive the capping assembly of the freezing tube batch capping mechanism to rotate, so as to cap the freezing tubes to be capped in the freezing tube rack at the capping station at the same time, so that the caps of the freezing tubes are loosened; when the caps of the freezing tubes in the freezing tube rack are loosened, the capping removal assembly of the freezing tube batch capping mechanism is controlled to remove the caps on the capping heads of the capping assembly. The present invention can open the covers of multiple cryopreservation tubes at the same time in a short period of time, and can quickly obtain the required samples, thereby speeding up the experiment or detection process; at the same time, it can batch open the covers of a group of tissue sample cryopreservation tubes, which can ensure that all samples are exposed to the same environmental conditions at the same time, thereby better controlling the experimental variables and making the experimental results more comparable and accurate; it not only improves efficiency, but also reduces errors caused by manual operations, making the entire experimental process more standardized and precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0051] Figure 1 A schematic flow chart of a method for capping cryopreservation tubes in batches provided in an embodiment of the present invention;

[0052] Figure 2 A schematic diagram of the first-perspective three-dimensional structure of the interior of a cryopreservation tube batch capping device provided in an embodiment of the present invention;

[0053] Figure 3 A schematic diagram of the second perspective internal stereoscopic structure of the cryopreservation tube batch capping device provided in an embodiment of the present invention;

[0054] Figure 4 A schematic diagram of the third-angle perspective of the internal structure of the cryopreservation tube batch capping device provided in an embodiment of the present invention;

[0055] Figure 5 A schematic diagram of the internal structure of the cryopreservation tube batch capping device provided in an embodiment of the present invention from a fourth perspective;

[0056] Figure 6A schematic diagram of the internal structure of the cryopreservation tube batch capping device provided in an embodiment of the present invention from a fifth viewing angle;

[0057] Figure 7 It is a schematic diagram of the three-dimensional structure from a first perspective of the cryotube batch capping mechanism provided in an embodiment of the present invention;

[0058] Figure 8 A schematic diagram of the stereoscopic structure of a batch capping mechanism for cryopreservation tubes provided in an embodiment of the present invention from a second viewing angle;

[0059] Fig. 9 A schematic diagram of the stereoscopic structure of a batch capping mechanism for cryopreservation tubes provided in an embodiment of the present invention from a third perspective;

[0060] Fig.10 A schematic diagram of the internal structure of a batch capping mechanism for cryopreservation tubes provided in an embodiment of the present invention;

[0061] Fig.11 Schematic diagram of the structure of the capping assembly of the batch capping mechanism for cryopreservation tubes provided in an embodiment of the present invention.

[0062] In the figure, 1, outer shell; 2, cryotube rack inlet and outlet; 3, neutral plate; 4, cryotube rack drive avoidance; 5, cryotube rack tray; 6, cryotube rack placement slot; 7, lifting drive motor; 8, lifting slider; 9, lifting slide rail; 10, cryotube rack in and out drive motor; 11, cryotube rack in and out drive rack; 12, cryotube rack in and out drive slide rail; 13, cryotube rack in and out drive slide; 14, drive avoidance bar hole; 15, avoidance gap; 16, first drive idler wheel; 17, first tensioner wheel; 18, second tensioner wheel; 19, second drive idler wheel; 20. Drive belt fixing seat; 21. Batch capping installation stand; 22. Batch capping installation top plate; 23. Batch capping transmission support plate; 24. Capping drive motor; 25. Capping assembly; 26. Capping end gear; 27. Gear transmission shaft; 28. Gear body; 29. ​​Clutch shaft; 30. Capping head; 31. Clutch slot; 32. Capping removal assembly; 33. Capping removal motor mounting plate; 34. Capping removal drive motor; 35. First capping removal adapter plate; 36. Second capping removal adapter plate; 37. Capping removal plate body; 38. Capping removal upper and lower guide rails; 39. Capping removal upper and lower sliders;

[0063] I. Cryotube rack in-and-out drive mechanism; II. Capping lifting drive mechanism; III. Cryotube batch capping mechanism. DETAILED DESCRIPTION

[0064] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] See also Figure 1 The embodiment of the present invention provides a method for capping cryopreservation tubes in batches, comprising the following steps:

[0066] S1, transferring the cryotube rack carrying the cryotubes to be capped to the capping station below the cryotube batch capping mechanism III through the cryotube rack in-and-out driving mechanism I;

[0067] S2, controlling the cryogenic tube batch capping mechanism III to move downward and dock with the cryogenic tubes to be capped in the cryogenic tube rack at the capping station through the capping lifting drive mechanism II;

[0068] S3, controlling the capping drive motor 24 of the cryotube batch capping mechanism III to drive the capping assembly 25 of the cryotube batch capping mechanism III to rotate, so as to simultaneously cap the cryotubes to be capped in the cryotube rack of the capping station, so as to loosen the caps of the cryotubes;

[0069] S4. When the caps of the cryotubes in the cryotube rack are loosened, the cap-removing assembly 32 of the cryotube batch capping mechanism III is controlled to remove the caps on the capping heads 30 of the capping assembly 25.

[0070] In this embodiment, the time for the cryopreservation tube rack in-and-out driving mechanism I to move to the capping station is set to T1, the time for the capping lifting driving mechanism II to complete docking is set to T2, the time for the capping assembly 25 to open the cap is set to T3, and the time for the capping assembly 32 to retract the cap is set to T4;

[0071] Define the state variables:

[0072] S1: Whether the cryopreservation tube rack in-and-out drive mechanism I reaches the capping station. If not, the initial value is 0, and it becomes 1 after reaching the capping station;

[0073] S2: Whether the cap lifting drive mechanism II has completed docking, the initial value is 0, and it becomes 1 after completion;

[0074] S3: Whether the capping assembly 25 has completed opening the cap, the initial value is 0, and it becomes 1 after completion;

[0075] S4: Whether the cover-retracting component 32 has completed the cover-retracting, the initial value is 0, and it becomes 1 after completion;

[0076] The control strategies of the freezing tube rack in-and-out drive mechanism I, the capping lifting drive mechanism II, and the freezing tube batch capping mechanism III are as follows:

[0077] When time t=T1, check whether the cryotube rack has accurately reached the capping station. If it has, set S1=1, otherwise report an error and stop the capping process;

[0078] When S1=1, start the capping lifting drive mechanism II. When time t=T1+T2, check whether the docking is successful. If successful, set S2=1. Otherwise, report an error and stop the capping process.

[0079] When S2=1, the capping assembly 25 is started to open the cap. When the time t=T1+T2+T3, it is checked whether the capping is completed. If it is completed, S3=1 is set. Otherwise, an error is reported and the capping process is stopped.

[0080] When S3=1, the cover-removing component 32 is started to remove the cover. When the time t=T1+T2+T3+T4, it is checked whether the cover-removing is completed. If it is completed, S4=1 is set, and the capping control process ends. Otherwise, an error is reported and the capping process is stopped.

[0081] When the capping process is completed, the control state variables S1, S2, S3, and S4 are reset to the initial values.

[0082] In this embodiment, during the control process of the freezing tube rack in-and-out drive mechanism I, the capping lifting drive mechanism II, and the freezing tube batch capping mechanism III:

[0083] After the specified action is completed, the sensor detects whether the action is in place, and an alarm is issued if it is not in place;

[0084] Set a waiting time t between set actions b , and set a time threshold. If the execution time of the specified action exceeds the time threshold, an exception prompt will be issued.

[0085] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The embodiment of the present invention also provides a batch capping device for cryopreservation tubes, which adopts the above-mentioned batch capping method for cryopreservation tubes, including an outer shell 1, a side of the outer shell 1 is formed with a cryopreservation tube rack inlet and outlet 2, the inner part of the outer shell 1 is provided with a neutral plate 3, and the bottom of the neutral plate 3 is formed with a cryopreservation tube rack drive avoidance opening 4; it also includes a cryopreservation tube rack inlet and outlet drive mechanism I, a capping lifting drive mechanism II and a cryopreservation tube batch capping mechanism III;

[0086] Among them, the freezing tube rack in-and-out drive mechanism I is arranged at the inner bottom of the outer shell 1, and the freezing tube rack in-and-out drive mechanism I includes a freezing tube rack tray 5, the freezing tube rack tray 5 passes through the freezing tube rack drive avoidance port 4, and the end of the freezing tube rack tray 5 is formed with a freezing tube rack placement slot 6; the capping lifting drive mechanism II includes a lifting drive motor 7 and a lifting slide rail 9, the lifting drive motor 7 is fixed on one side of the neutral plate 3, and the lifting slide rail 9 is fixed on the other side of the neutral plate 3;

[0087] Among them, the freezing tube batch capping mechanism III is connected to the lifting slide rail 9 through the lifting slider 8, and the freezing tube rack in and out driving mechanism I transfers the freezing tube rack in the freezing tube rack placement slot 6 to the bottom of the freezing tube batch capping mechanism III; the lifting drive motor 7 is also connected to the freezing tube batch capping mechanism III through a lifting transmission belt (not shown), and the lifting drive motor 7 drives the freezing tube batch capping mechanism III to move up and down along the lifting slide rail 9 through the lifting transmission belt; the freezing tube batch capping mechanism III moves downward to dock and unscrew the freezing tube caps placed in the freezing tube rack on the freezing tube rack placement slot 6.

[0088] See also Figure 4 , Figure 5 and Figure 6 In this embodiment, the freezing tube rack in-and-out driving mechanism 1 also includes a freezing tube rack in-and-out driving motor 10, a freezing tube rack in-and-out driving rack 11, a freezing tube rack in-and-out transmission slide rail 12 and a freezing tube rack in-and-out transmission slider 13;

[0089] Among them, the freezing tube rack in-and-out drive motor 10 is fixed on the side of the neutral plate 3, the freezing tube rack in-and-out drive rack 11 is fixed on the bottom of the freezing tube rack tray 5, and the driving end of the freezing tube rack in-and-out drive motor 10 is meshed with the freezing tube rack in-and-out drive rack 11 through a gear; the freezing tube rack in-and-out transmission slide rail 12 is fixed on the bottom of the outer shell 1, and the freezing tube rack in-and-out transmission slide rail 12 is connected to the freezing tube rack tray 5 through the freezing tube rack in-and-out transmission slider 13.

[0090] Specifically, the cryo-tube rack in-and-out drive motor 10 is fixed to the side of the neutral plate 3. The function of the cryo-tube rack in-and-out drive motor 10 is to mesh with the cryo-tube rack in-and-out drive rack 11 through the gear at the driving end, thereby providing power for the cryo-tube rack in and out. The cryo-tube rack in-and-out drive rack 11 is fixed to the bottom of the cryo-tube rack tray 5, and the cryo-tube rack in-and-out transmission slide rail 12 is fixed to the bottom of the outer shell 1, and is connected to the cryo-tube rack tray 5 through the cryo-tube rack in-and-out transmission slider 13, which plays a role in guiding the cryo-tube rack tray 5 to move in and out.

[0091] Among them, the freezing tube rack tray 5 is formed with a transmission avoidance bar hole 14, and the driving end of the freezing tube rack in and out driving motor 10 passes through the transmission avoidance bar hole 14 and then engages with the freezing tube rack in and out driving rack 11 through the gear; an avoidance gap 15 is formed between the freezing tube rack in and out driving motor 10 and the upper end surface of the freezing tube rack tray 5.

[0092] Specifically, a transmission avoidance bar hole 14 is formed on the cryotube rack tray 5. This design provides a channel for the engagement of the driving end of the cryotube rack in-and-out drive motor 10 with the cryotube rack in-and-out drive rack 11. After the driving end of the cryotube rack in-and-out drive motor 10 passes through the transmission avoidance bar hole 14, it engages with the cryotube rack in-and-out drive rack 11 through the gear to drive the cryotube rack tray 5. The avoidance gap 15 formed between the cryotube rack in-and-out drive motor 10 and the upper end surface of the cryotube rack tray 5 prevents the cryotube rack tray 5 from interfering with the cryotube rack tray 5 during operation, thereby ensuring the normal operation of the equipment.

[0093] See also Figure 4 , Figure 5 and Figure 6 In this embodiment, the lifting drive motor 7 of the rotary cover lifting drive mechanism II is a double-axis electric motor; the rotary cover lifting drive mechanism II also includes a first transmission idler wheel 16, a first tensioning wheel 17, a second tensioning wheel 18, a second transmission idler wheel 19 and a transmission belt fixing seat 20; the first transmission idler wheel 16, the first tensioning wheel 17, and the second tensioning wheel 18 are all connected to the side of the neutral plate 3, and the second transmission idler wheel 19 is arranged at the bottom of the outer shell 1; one end of the lifting transmission belt is connected to the upper part of the transmission belt fixing seat 20, and the other end of the lifting transmission belt is connected to the lower part of the transmission belt fixing seat 20 after passing the first transmission idler wheel 16, the first tensioning wheel 17, the driving wheel of the lifting drive motor 7, the second tensioning wheel 18, and the second transmission idler wheel 19.

[0094] Specifically, the lifting drive motor 7 of the capping lifting drive mechanism II is a double-axis electric motor, which provides a power source for the lifting of the batch capping mechanism III of the cryopreservation tube. The first transmission idler wheel 16, the first tensioning wheel 17, and the second tensioning wheel 18 are connected to the side of the neutral plate 3, and the second transmission idler wheel 19 is arranged at the bottom of the outer shell 1. The reasonable position distribution ensures the normal operation of the capping lifting drive mechanism II. Among them, one end of the lifting transmission belt is connected to the upper part of the transmission belt fixing seat 20, and the other end passes through the first transmission idler wheel 16, the first tensioning wheel 17, the driving wheel of the lifting drive motor 7, the second tensioning wheel 18, and the second transmission idler wheel 19 and then connects to the lower part of the transmission belt fixing seat 20, forming a complete lifting transmission system.

[0095] See also Figure 7 , Figure 8 , Fig. 9 and Fig.10In this embodiment, the batch capping mechanism III for cryopreservation tubes includes a batch capping installation seat 21, a batch capping installation top plate 22, a batch capping transmission support plate 23, a capping drive motor 24 and a capping assembly 25; the upper part of the batch capping installation seat 21 is connected to the batch capping installation top plate 22, the transmission belt fixing seat 20 is connected to the outer side of the top end of the batch capping installation seat 21, the batch capping transmission support plate 23 is connected to the inner side of the middle part of the batch capping installation seat 21, and the batch capping transmission support plate 23 is located below the batch capping installation seat 21; the capping drive motor 24 is arranged at the upper end of the batch capping installation top plate 22; the capping drive motor 24 is connected to the capping assembly 25, and the capping assembly 25 passes through the batch capping installation top plate 22 and the batch capping transmission support plate 23.

[0096] Specifically, the capping drive motor 24 serves as a power source, and generates rotational power when the capping drive motor 24 is started. This power is transmitted to the capping assembly 25 through the motor shaft. Since the capping assembly 25 passes through the batch capping installation top plate 22 and the batch capping transmission support plate 23, the rotational motion of the capping drive motor 24 can be effectively transmitted to various parts of the capping assembly 25, providing power for the capping operation. Among them, the capping assembly 25 starts to rotate under the drive of the capping drive motor 24, and the batch capping installation stand 21 provides a support structure for the entire capping process. The batch capping installation top plate 22 connected to the upper part of the batch capping installation stand 21 and the batch capping transmission support plate 23 connected to the inner side of the middle part jointly ensure that the capping assembly 25 rotates in a stable position.

[0097] See also Fig.10 and Fig.11 In this embodiment, the capping assembly 25 includes a capping end gear 26, a shifting gear transmission shaft 27, a shifting gear body 28, a clutch shaft 29 and a capping head 30; the capping end gear 26 is meshed with the driving end gear of the capping drive motor 24, the upper end of the shifting gear transmission shaft 27 is connected to the capping end gear 26, and the lower part of the shifting gear transmission shaft 27 passes through the batch capping installation top plate 22 and is connected to the top of the shifting gear body 28; the shifting gear body 28 cooperates with the top clutch groove 31 of the clutch shaft 29; the clutch shaft 29 passes through the batch capping transmission support plate 23, and the capping head 30 is connected to the lower end of the clutch shaft 29.

[0098] Specifically, the power of the capping drive motor 24 is transmitted to the capping end gear 26 in the capping assembly 25 through the drive end gear. This gear meshing mode can ensure the effective transmission of power and can achieve the appropriate conversion of speed and torque. The capping end gear 26 is connected to the upper end of the shifting gear transmission shaft 27. When the capping end gear 26 rotates, the shifting gear transmission shaft 27 also rotates. The lower part of the shifting gear transmission shaft 27 passes through the batch capping installation top plate 22 and is connected to the top of the shifting gear body 28, so that the power is transmitted from the capping end gear 26 above the top plate to the shifting gear body 28.

[0099] The gear body 28 cooperates with the clutch groove 31 at the top of the clutch shaft 29. This clutch structure enables the capping assembly 25 to achieve clutch control during operation. For example, when the capping head 30 needs to be replaced or the equipment is debugged, the capping head 30 can be separated from the power part by controlling the clutch structure. The clutch shaft 29 passes through the batch capping transmission support plate 23, which ensures the stability of the clutch shaft 29 during rotation, and the position of the clutch shaft 29 is accurately fixed in the support structure of the device.

[0100] Since the capping head 30 is connected to the lower end of the clutch shaft 29, when the power is transmitted to the capping head 30, the capping head 30 can perform a capping operation on the cryotube cap. The specific structure of the capping head 30 may vary according to the type and size of the cryotube cap. For example, for a round cryotube cap, the capping head 30 may have a slot matching the edge of the cryotube cap or a rubber ring with greater friction, so as to ensure that the cryotube cap can be effectively grasped.

[0101] In this embodiment, the number of the rotary capping assemblies 25 is M×N, where M is the number of columns and N is the number of rows; every four rotary capping assemblies 25 are equipped with a rotary capping driving motor 24, and the driving end gear of a rotary capping driving motor 24 is simultaneously engaged with the rotary capping end gears 26 of four adjacent rotary capping assemblies 25.

[0102] Specifically, a rotary cap drive motor 24 drives four adjacent rotary cap assemblies 25, thereby realizing efficient power distribution. Through the meshing of the drive end gear and the four rotary cap end gears 26, the rotational power of the rotary cap drive motor 24 can be transmitted to multiple rotary cap assemblies 25 at the same time. Just like a central power source provides power for multiple working units around it, the number of rotary cap drive motors 24 used is reduced, and the equipment cost and energy consumption are reduced. Among them, the rotary cap assemblies 25 are arranged in an M×N matrix form, and a rotary cap drive motor 24 is configured for every four rotary cap assemblies 25, so that the layout of the entire device is more compact and reasonable. This layout is conducive to setting more rotary cap assemblies 25 in a limited space and improving production efficiency. Among them, M and N are positive integers, which can be flexibly designed according to needs.

[0103] Among them, since one capping drive motor 24 drives four capping assemblies 25 at the same time, as long as the rotation speed of the capping drive motor 24 is stable, the four capping assemblies 25 can rotate synchronously, which can ensure that all the capping assemblies 25 driven by the same capping drive motor 24 perform capping operations at the same speed and torque, thereby improving the consistency of product quality.

[0104] In this embodiment, the batch capping mechanism III for cryopreservation tubes also includes a capping assembly 32; the capping assembly 32 includes a capping motor mounting plate 33, a capping drive motor 34, a first capping adapter plate 35, a second capping adapter plate 36, a capping plate body 37 and capping upper and lower guide rails 38; the capping motor mounting plate 33 is connected to the front of the batch capping mounting stand 21, and the capping drive motor 34 is connected to the capping motor mounting plate 33; the first capping adapter plate 35 is connected to the driving end of the capping drive motor 34, and the second capping adapter plate 36 is connected to the first capping adapter plate 35; the capping plate body 37 is connected to the lower end of the second capping adapter plate 36, and the capping head 30 is located below the capping plate body 37, and the clutch shaft 29 passes through the capping plate body 37 and is inserted into the capping head 30; the capping upper and lower guide rails 38 are connected to the side of the batch capping mounting stand 21, and the second capping adapter plate 36 is connected to the capping upper and lower guide rails 38 through the capping upper and lower sliders 39.

[0105] Specifically, the cover-removing motor mounting plate 33 is connected to the front of the batch capping mounting stand 21, providing a stable mounting foundation for the cover-removing drive motor 34. This layout enables the cover-removing drive motor 34 to be closely integrated with the entire cryogenic tube batch capping mechanism III, and the stability is enhanced by the support structure of the batch capping mounting stand 21. The cover-removing drive motor 34 is installed on the cover-removing motor mounting plate 33 to provide power for the cover-removing assembly 32. Starting from the driving end of the cover-removing drive motor 34, power is transmitted in sequence through the first cover-removing adapter plate 35 and the second cover-removing adapter plate 36. The design of the first cover-removing adapter plate 35 and the second cover-removing adapter plate 36 helps to adjust the direction of power transmission so that power can be accurately and effectively transmitted to the cover-removing plate body 37.

[0106] The cover-removing plate body 37 is connected to the lower end of the second cover-removing adapter plate 36 and is located above the capping head 30. The clutch shaft 29 passes through the cover-removing plate body 37 and is inserted into the capping head 30. This structure creates conditions for the cover-removing operation. When the cover-removing driving motor 34 is running, the cover-removing plate body 37 is driven to move through the first cover-removing adapter plate 35 and the second cover-removing adapter plate 36, and the cover-removing plate body 37 can apply a force to the capping head 30 connected to the clutch shaft 29, thereby realizing the separation of the capping head 30 from the cryopreservation tube cover and completing the cap-removing function.

[0107] The upper and lower guide rails 38 for withdrawing the cover are connected to the side of the batch cover rotating mounting stand 21, and the second cover withdrawing adapter plate 36 is connected thereto through the upper and lower slide blocks 39 for withdrawing the cover, thereby strictly limiting the movement trajectory of the second cover withdrawing adapter plate 36 and the connected components, so that they can only move in the up and down direction. During the process of withdrawing the cover, no matter how much power is provided by the cover withdrawing driving motor 34, the cover withdrawing assembly 32 can accurately move up and down under the guidance of the upper and lower guide rails 38 for withdrawing the cover, effectively avoiding shaking and deviation during the movement, and greatly improving the stability and accuracy of the cover withdrawing operation.

[0108] In summary, the freezing tube rack in-and-out drive motor 10 of the present invention is fixed on the side of the neutral plate 3. The function of the freezing tube rack in-and-out drive motor 10 is to mesh with the freezing tube rack in-and-out drive rack 11 through the gear at the drive end, thereby providing power for the freezing tube rack in and out. The freezing tube rack in-and-out drive rack 11 is fixed to the bottom of the freezing tube rack tray 5, and the freezing tube rack in-and-out transmission slide rail 12 is fixed to the bottom of the outer shell 1, and is connected to the freezing tube rack tray 5 through the freezing tube rack in-and-out transmission slider 13, which plays a role in guiding the freezing tube rack tray 5 to move in and out. The freezing tube rack tray 5 is formed with a transmission avoidance bar hole 14, and the driving end of the freezing tube rack in-and-out drive motor 10 passes through the transmission avoidance bar hole 14 and then meshes with the freezing tube rack in-and-out drive rack 11 through the gear; an avoidance gap 15 is formed between the freezing tube rack in-and-out drive motor 10 and the upper end surface of the freezing tube rack tray 5. A transmission avoidance bar hole 14 is formed on the cryotube rack tray 5. This design provides a channel for the engagement of the driving end of the cryotube rack in-and-out drive motor 10 with the cryotube rack in-and-out drive rack 11. After the driving end of the cryotube rack in-and-out drive motor 10 passes through the transmission avoidance bar hole 14, it engages with the cryotube rack in-and-out drive rack 11 through the gear to drive the cryotube rack tray 5. The avoidance gap 15 formed between the cryotube rack in-and-out drive motor 10 and the upper end surface of the cryotube rack tray 5 prevents the cryotube rack tray 5 from interfering with the cryotube rack tray 5 during operation, thereby ensuring the normal operation of the equipment. The lifting drive motor 7 of the capping lifting drive mechanism II is a double-axis electric motor, which provides a power source for the lifting of the cryotube batch capping mechanism III. The first transmission idler wheel 16, the first tension wheel 17, and the second tension wheel 18 are connected to the side of the neutral plate 3, and the second transmission idler wheel 19 is arranged at the bottom of the outer shell 1. The reasonable position distribution ensures the normal operation of the capping lifting drive mechanism II. Among them, one end of the lifting transmission belt is connected to the upper part of the transmission belt fixing seat 20, and the other end is connected to the lower part of the transmission belt fixing seat 20 after passing through the first transmission idler wheel 16, the first tensioner wheel 17, the driving wheel of the lifting drive motor 7, the second tensioner wheel 18, and the second transmission idler wheel 19, so as to form a complete lifting transmission system. The capping drive motor 24 serves as a power source, and generates rotational power when the capping drive motor 24 is started. This power is transmitted to the capping assembly 25 through the motor shaft. Since the capping assembly 25 passes through the batch capping installation top plate 22 and the batch capping transmission support plate 23, the rotational motion of the capping drive motor 24 can be effectively transmitted to various parts of the capping assembly 25, providing power for the capping operation. Among them, the capping assembly 25 starts to rotate under the drive of the capping drive motor 24, and the batch capping installation stand 21 provides a support structure for the entire capping process. The batch capping installation top plate 22 connected to the upper part of the batch capping installation stand 21 and the batch capping transmission support plate 23 connected to the inner side of the middle part jointly ensure that the capping assembly 25 rotates in a stable position. The power of the capping drive motor 24 is transmitted to the capping end gear 26 in the capping assembly 25 through the drive end gear.The mode of this gear meshing can ensure the effective transmission of power and can realize the appropriate conversion of speed and torque. The capping end gear 26 is connected to the upper end of the gear transmission shaft 27, and when the capping end gear 26 rotates, the gear transmission shaft 27 also rotates therewith. The lower part of the gear transmission shaft 27 passes through the batch capping installation top plate 22 and is connected with the top of the gear body 28, so that the power is transmitted from the capping end gear 26 above the top plate to the gear body 28. The gear body 28 cooperates with the top clutch groove 31 of the clutch shaft 29, and this clutch structure enables the capping assembly 25 to realize clutch control during operation. For example, when it is necessary to replace the capping head 30 or to debug the equipment, the capping head 30 can be separated from the power part by controlling the clutch structure. The clutch shaft 29 passes through the batch capping transmission support plate 23, which ensures the stability of the clutch shaft 29 during rotation, and the position of the clutch shaft 29 is accurately fixed in the supporting structure of the device. Since the capping head 30 is connected to the lower end of the clutch shaft 29, when the power is transmitted to the capping head 30, the capping head 30 can perform the capping operation on the cryotube cover. The specific structure of the capping head 30 may vary according to the type and size of the cryotube cover. For example, for a circular cryotube cover, the capping head 30 has a card slot matching the edge of the cryotube cover or a rubber ring with greater friction, so as to ensure that the cryotube cover can be effectively grasped. The capping motor mounting plate 33 is connected to the front of the batch capping mounting stand 21, providing a stable installation foundation for the capping drive motor 34. This layout enables the capping drive motor 34 to be closely combined with the entire cryotube batch capping mechanism III, and the support structure of the batch capping mounting stand 21 is used to enhance stability. The capping drive motor 34 is mounted on the capping motor mounting plate 33 to provide power for the capping assembly 32. Starting from the driving end of the capping drive motor 34, the power is transmitted in sequence through the first capping adapter plate 35 and the second capping adapter plate 36. The design of the first cover-removing adapter plate 35 and the second cover-removing adapter plate 36 helps to adjust the power transmission direction so that the power can be accurately and effectively transmitted to the cover-removing plate body 37. The cover-removing plate body 37 is connected to the lower end of the second cover-removing adapter plate 36 and is located above the screw capping head 30. The clutch shaft 29 passes through the cover-removing plate body 37 and is inserted into the screw capping head 30. This structure creates conditions for the cover-removing operation. When the cover-removing drive motor 34 is running and drives the cover-removing plate body 37 to move through the first cover-removing adapter plate 35 and the second cover-removing adapter plate 36, the cover-removing plate body 37 can apply a force to the screw capping head 30 connected to the clutch shaft 29, thereby realizing the separation action of the screw capping head 30 and the cryopreservation tube cover, and completing the cover-removing function.The present invention can open the covers of multiple cryopreservation tubes at the same time in a short period of time, and can quickly obtain the required samples, thereby speeding up the experiment or detection process; at the same time, it can batch open the covers of a group of tissue sample cryopreservation tubes, which can ensure that all samples are exposed to the same environmental conditions at the same time, thereby better controlling the experimental variables and making the experimental results more comparable and accurate; it not only improves efficiency, but also reduces errors caused by manual operations, making the entire experimental process more standardized and precise.

[0109] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A method for capping cryopreservation tubes in batches, characterized in that: The following steps are involved: The cryotube rack carrying the cryotubes to be capped is transferred to the capping station below the cryotube batch capping mechanism (III) by means of the cryotube rack in-and-out driving mechanism (I); The cryotube batch capping mechanism (III) is controlled by the capping lifting drive mechanism (II) to move downward to dock with the cryotubes to be capped in the cryotube rack located at the capping station; Controlling the capping drive motor (24) of the cryotube batch capping mechanism (III) to drive the capping assembly (25) of the cryotube batch capping mechanism (III) to rotate, so as to simultaneously cap the cryotubes to be capped in the cryotube rack of the capping station, thereby loosening the caps of the cryotubes; When the caps of the cryotubes in the cryotube rack are loosened, the cap-removing assembly (32) of the cryotube batch capping mechanism (III) is controlled to remove the caps on the capping heads (30) of the capping assembly (25).

2. A method for batch capping of cryopreservation tubes according to claim 1, characterized in that: The time for the cryopreservation tube rack in-and-out drive mechanism (I) to move to the capping station is set to T1, the time for the capping lifting drive mechanism (II) to complete docking is set to T2, the time for the capping assembly (25) to open the cap is set to T3, and the time for the capping assembly (32) to retract the cap is set to T4; Define the state variables: S1: Whether the cryotube rack in-and-out drive mechanism (I) has reached the capping station. If it has not reached the capping station, the initial value is 0, and it becomes 1 after reaching the capping station; S2: Whether the rotary cover lifting drive mechanism (II) has completed docking, the initial value is 0, and it becomes 1 after completion; S3: Whether the capping assembly (25) has completed opening the cap, the initial value is 0, and it becomes 1 after completion; S4: Whether the cover-removing component (32) has completed the cover-removing operation, the initial value is 0, and becomes 1 after completion; The control strategies of the freezing tube rack in-and-out drive mechanism (I), the capping lifting drive mechanism (II), and the freezing tube batch capping mechanism (III) are as follows: When time t=T1, check whether the cryotube rack has accurately reached the capping station. If it has, set S1=1, otherwise report an error and stop the capping process; When S1=1, start the capping lifting drive mechanism (II). When time t=T1+T2, check whether the docking is successful. If successful, set S2=1. Otherwise, report an error and stop the capping process. When S2=1, the capping assembly (25) is started to open the cap. When the time t=T1+T2+T3, it is checked whether the capping is completed. If it is completed, S3=1 is set. Otherwise, an error is reported and the capping process is stopped. When S3=1, the cover-removing component (32) is started to remove the cover. When the time t=T1+T2+T3+T4, it is checked whether the cover-removing is completed. If it is completed, S4=1 is set and the cover-screwing control process ends. Otherwise, an error is reported and the cover-screwing process stops. When the capping process is completed, the control state variables S1, S2, S3, and S4 are reset to the initial values.

3. A method for batch capping of cryopreservation tubes according to claim 2, characterized in that: During the control of the freezing tube rack in-and-out drive mechanism (I), the capping lifting drive mechanism (II), and the freezing tube batch capping mechanism (III): After the specified action is completed, the sensor detects whether the action is in place, and an alarm is issued if it is not in place; Set a waiting time t between set actions b , and set a time threshold. If the execution time of the specified action exceeds the time threshold, an exception prompt will be issued.

4. A cryogenic tube batch capping device, using a cryogenic tube batch capping method according to any one of claims 1 to 3, characterized in that: The invention comprises an outer shell (1), a side of which is formed with a freezing tube rack inlet and outlet (2), a neutral plate (3) is provided inside the outer shell (1), and a freezing tube rack drive avoidance opening (4) is formed at the bottom of the neutral plate (3); and further comprises a freezing tube rack inlet and outlet drive mechanism (I), a capping lifting drive mechanism (II) and a freezing tube batch capping mechanism (III); The freezing tube rack in-and-out driving mechanism (I) is arranged at the inner bottom of the outer shell (1), and the freezing tube rack in-and-out driving mechanism (I) comprises a freezing tube rack tray (5), the freezing tube rack tray (5) passes through the freezing tube rack drive avoidance opening (4), and the end of the freezing tube rack tray (5) is formed with a freezing tube rack placement groove (6); The rotary cover lifting drive mechanism (II) comprises a lifting drive motor (7) and a lifting slide rail (9), wherein the lifting drive motor (7) is fixed on one side of the neutral plate (3), and the lifting slide rail (9) is fixed on the other side of the neutral plate (3); The cryotube batch capping mechanism (III) is connected to the lifting slide rail (9) via a lifting slider (8), and the cryotube rack in-and-out driving mechanism (I) transfers the cryotube rack in the cryotube rack placement slot (6) to the bottom of the cryotube batch capping mechanism (III); The lifting drive motor (7) is also connected to the cryogenic tube batch capping mechanism (III) via a lifting transmission belt, and the lifting drive motor (7) drives the cryogenic tube batch capping mechanism (III) to move up and down along the lifting slide rail (9) via the lifting transmission belt; The cryotube batch capping mechanism (III) moves downward to dock with and unscrew the cryotube caps placed in the cryotube rack on the cryotube rack placement slot (6).

5. The cryotube batch capping device according to claim 4, characterized in that: The freezing tube rack in-and-out driving mechanism (I) further comprises a freezing tube rack in-and-out driving motor (10), a freezing tube rack in-and-out driving rack (11), a freezing tube rack in-and-out transmission slide rail (12) and a freezing tube rack in-and-out transmission slide block (13); The freezing tube rack in-and-out drive motor (10) is fixed to the side of the neutral plate (3), the freezing tube rack in-and-out drive rack (11) is fixed to the bottom of the freezing tube rack tray (5), and the driving end of the freezing tube rack in-and-out drive motor (10) is meshed with the freezing tube rack in-and-out drive rack (11) through a gear; The cryotube rack in-and-out transmission slide rail (12) is fixed to the bottom of the outer shell (1), and the cryotube rack in-and-out transmission slide rail (12) is connected to the cryotube rack tray (5) via the cryotube rack in-and-out transmission slider (13).

6. The cryotube batch capping device according to claim 5, characterized in that: The freezing tube rack tray (5) is formed with a transmission avoidance bar hole (14), and the driving end of the freezing tube rack in-and-out driving motor (10) passes through the transmission avoidance bar hole (14) and then meshes with the freezing tube rack in-and-out driving rack (11) through a gear; An escape gap (15) is formed between the freezing tube rack in-and-out drive motor (10) and the upper end surface of the freezing tube rack tray (5).

7. The cryotube batch capping device according to claim 4, characterized in that: The lifting drive motor (7) of the rotary cover lifting drive mechanism (II) is a double-axis electric motor; the rotary cover lifting drive mechanism (II) also includes a first transmission idler wheel (16), a first tension wheel (17), a second tension wheel (18), a second transmission idler wheel (19) and a transmission belt fixing seat (20); The first transmission idler wheel (16), the first tension wheel (17), and the second tension wheel (18) are all connected to the side of the neutral plate (3), and the second transmission idler wheel (19) is arranged at the bottom of the outer shell (1); One end of the lifting transmission belt is connected to the upper part of the transmission belt fixing seat (20), and the other end of the lifting transmission belt passes around the first transmission idler wheel (16), the first tensioner wheel (17), the driving wheel of the lifting drive motor (7), the second tensioner wheel (18), and the second transmission idler wheel (19), and then is connected to the lower part of the transmission belt fixing seat (20).

8. The cryotube batch capping device according to claim 7, characterized in that: The cryopreservation tube batch capping mechanism (III) comprises a batch capping installation stand (21), a batch capping installation top plate (22), a batch capping transmission support plate (23), a capping drive motor (24) and a capping assembly (25); The upper part of the batch capping installation stand (21) is connected to the batch capping installation top plate (22), the transmission belt fixing seat (20) is connected to the outer side of the top end of the batch capping installation stand (21), the batch capping transmission support plate (23) is connected to the inner side of the middle part of the batch capping installation stand (21), and the batch capping transmission support plate (23) is located below the batch capping installation stand (21); the capping drive motor (24) is arranged at the upper end of the batch capping installation top plate (22); the capping drive motor (24) is connected to the capping assembly (25), and the capping assembly (25) passes through the batch capping installation top plate (22) and the batch capping transmission support plate (23).

9. The cryotube batch capping device according to claim 8, characterized in that: The capping assembly (25) comprises a capping end gear (26), a shifting gear transmission shaft (27), a shifting gear body (28), a clutch shaft (29) and a capping head (30); The capping end gear (26) is meshed with the driving end gear of the capping drive motor (24); the upper end of the shifting gear transmission shaft (27) is connected to the capping end gear (26); the lower part of the shifting gear transmission shaft (27) passes through the batch capping mounting top plate (22) and is connected to the top of the shifting gear body (28); the shifting gear body (28) is matched with the top clutch groove (31) of the clutch shaft (29); the clutch shaft (29) passes through the batch capping transmission support plate (23), and the capping head (30) is connected to the lower end of the clutch shaft (29); The number of the rotary cover components (25) is M×N, where M is the number of columns and N is the number of rows; Every four of the capping assemblies (25) are equipped with a capping drive motor (24), and a drive end gear of one of the capping drive motors (24) is simultaneously meshed with the capping end gears (26) of four adjacent capping assemblies (25).

10. The cryotube batch capping device according to claim 8, characterized in that: The cryopreservation tube batch capping mechanism (III) further comprises a cap-removing assembly (32); the cap-removing assembly (32) comprises a cap-removing motor mounting plate (33), a cap-removing driving motor (34), a first cap-removing adapter plate (35), a second cap-removing adapter plate (36), a cap-removing plate body (37) and cap-removing upper and lower guide rails (38); The cover-removing motor mounting plate (33) is connected to the front part of the batch cover-screwing mounting stand (21), and the cover-removing driving motor (34) is connected to the cover-removing motor mounting plate (33); the first cover-removing adapter plate (35) is connected to the driving end of the cover-removing driving motor (34), and the second cover-removing adapter plate (36) is connected to the first cover-removing adapter plate (35); The cover-removing plate body (37) is connected to the lower end of the second cover-removing adapter plate (36), the cover-screwing head (30) is located below the cover-removing plate body (37), and the clutch shaft (29) passes through the cover-removing plate body (37) and is inserted into the cover-screwing head (30); The upper and lower cover-removing guide rails (38) are connected to the side of the batch cover-screwing mounting stand (21), and the second cover-removing adapter plate (36) is connected to the upper and lower cover-removing guide rails (38) via upper and lower cover-removing sliders (39).

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