Low-temperature sample storage library and control method
By designing a buffer channel and sealing mechanism in the low-temperature sample library, allowing only air to frost within the buffer channel, the problem of poor frost control in existing low-temperature sample libraries is solved, achieving effective frost control and normal equipment operation.
Patent Information
- Application Number
- CN202512059882.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-02-17
AI Technical Summary
Existing low-temperature sample storage facilities suffer from poor defrosting control, low efficiency, and limited practicality. In particular, when automated robotic arms frequently enter and exit the storage facility, hot and humid air can easily enter, leading to severe frost formation and affecting the normal operation of the equipment.
Design a low-temperature sample storage container, comprising a container body, a material handling device, and a buffer channel. The interface is sealed by a moving mechanism and a seal to allow only air to frost within the buffer channel. Heating wires are used to prevent frost from forming on the push rods. Combined with automatic door control, this ensures that hot and humid air does not enter the storage area.
It effectively isolates hot and humid air from entering the storage area, reduces frost formation, ensures dry air inside the storage room, prevents equipment from frosting, improves equipment efficiency, and provides more time for manual operation.
Smart Images
Figure CN121539928A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of sample storage technology, specifically providing a low-temperature sample storage device and its control method. Background Technology
[0002] When materials are transferred between the low-temperature and normal-temperature environments in a cryogenic sample storage facility, airflow exchange occurs, leading to frost formation in the low-temperature environment. Over time, the accumulated frost can render equipment in the low-temperature environment unusable. To reduce frost formation, a separate buffer zone is set up before samples enter the storage area to capture moisture. However, if automated robotic arms frequently enter and exit the storage area, a large amount of moisture can enter the buffer zone. Due to temperature fluctuations and pressure fluctuations within the storage area, the storage area experiences a "breathing" effect, causing moisture from the buffer zone to be drawn into the storage area. When this moisture encounters the automated equipment in the storage area, frost formation occurs.
[0003] Existing defrosting control solutions include: 1. Installing air curtains or air curtains at entrances and exits, using fans to blow air into the passage to form an airflow barrier; 2. Placing desiccants in the buffer area to dry the hot and humid external air; 3. Automating the entry and exit of goods, such as speeding up transportation and closing doors; 4. Using anti-frost materials or coatings to control frost formation.
[0004] However, the aforementioned defrosting solutions are relatively inefficient. The effect is minimal, especially with automated channels having large cross-sections, as external humid air passes through the desiccant. Increasing transport and door closing speeds only shortens the time for free gas exchange and does not effectively prevent the entry of humid air. Anti-frost materials are impractical due to cost and processing limitations. Furthermore, allowing external air to enter through a desiccant or directly injecting dry air also has other limitations. For example, the water content in air varies at different temperatures; even if the air is dry initially, moisture will still be released after cooling inside the storage room, causing frost formation.
[0005] Accordingly, a new technical solution is needed in this field to solve the above-mentioned technical problems. Summary of the Invention
[0006] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problems of poor frost control, low efficiency and low practicality of existing low temperature sample banks.
[0007] In a first aspect, the present invention provides a low-temperature sample storage device, the low-temperature sample storage device including a storage body and a material handling device, the storage body being provided with a first storage area and a buffer channel, one side of the buffer channel being provided with an interface communicating with the first storage area, and the other side of the buffer channel being configured to communicate with the outside of the storage body; the material handling device including a first moving mechanism, a second moving mechanism and a container stage, the first moving mechanism being disposed in the first storage area, the drive end of the first moving mechanism being connected to the second moving mechanism to drive the second moving mechanism to move, the second moving mechanism including a sealing element, the first moving mechanism being able to drive the sealing element to move to block or open the interface, the drive end of the second moving mechanism being connected to the container stage to drive the container stage to move.
[0008] In a specific embodiment of the above-mentioned low-temperature sample storage warehouse, a partition is provided inside the warehouse, which divides the interior of the warehouse into the first storage area and the buffer channel, and the partition is provided with the interface.
[0009] In a specific embodiment of the aforementioned low-temperature sample storage device, the first moving mechanism includes a first platform, a first driving component, a first conveying assembly, a first lead screw, a mounting base, and a slide. The first platform is disposed within the first storage area. The first driving component and the mounting base are respectively fixedly disposed on the first platform. The driving end of the first driving component is connected to the first end of the first conveying assembly. The second end of the first conveying assembly is connected to the first lead screw. The first lead screw is rotatably disposed on the mounting base. The slide is threadedly connected to the first lead screw and is connected to the second moving mechanism.
[0010] In a specific embodiment of the aforementioned low-temperature sample storage device, the second moving mechanism further includes a second platform, with the sealing plate fixedly disposed on one end of the second platform near the buffer channel; and the second moving mechanism further includes a second driving member, a second conveying assembly, a second lead screw, a push plate, a mounting plate, and a push rod. The second platform is connected to the slide block, the second driving member and the mounting plate are respectively fixedly disposed on the second platform, the mounting plate is located on the second platform away from the buffer channel, the driving end of the second driving member is connected to the first end of the second conveying assembly, the second end of the second conveying assembly is connected to the second lead screw, the two ends of the second lead screw are respectively rotatably connected to the mounting plate and the sealing plate, the push plate is threadedly connected to the second lead screw, the first end of the push rod is connected to the push rod, the push rod slidably passes through the sealing plate, and the second end of the push rod is connected to the carrier stage.
[0011] In a specific embodiment of the aforementioned low-temperature sample storage device, the push rod is configured as a hollow structure, and a heating wire is disposed inside the hollow structure.
[0012] In a specific embodiment of the above-mentioned low-temperature sample storage device, the material handling device further includes a rotating mechanism. The driving end of the rotating mechanism is connected to the first moving mechanism to drive the first moving mechanism to rotate horizontally, thereby driving the second moving mechanism and the tray stage to rotate horizontally.
[0013] In a specific embodiment of the above-mentioned low-temperature sample storage device, the rotating mechanism includes a third driving member and a third conveying component. The third driving member is fixedly disposed in the first storage area. The third driving member is connected to the first end of the third conveying component, and the second end of the third conveying component is connected to the first platform.
[0014] In a specific embodiment of the aforementioned low-temperature sample storage warehouse, the warehouse body is provided with an entrance and exit, and an automatic door is provided at the entrance and exit to control the opening and closing of the entrance and exit; when the interface is blocked, the automatic door opens; when the interface is open, the automatic door closes.
[0015] In a second aspect, the present invention also provides a control method for a low-temperature sample storage repository, the low-temperature sample storage repository including the aforementioned low-temperature sample storage repository; the control method includes: firstly controlling a first moving mechanism to drive a second moving mechanism to move toward the buffer channel, so that the seal blocks the interface, thereby making the first storage area and the buffer channel mutually isolated; then controlling the second moving mechanism to drive the cassette stage to move inside and outside the repository for sample transfer, so that air entering from outside the repository only frosts within the buffer channel.
[0016] In a specific implementation of the control method for the aforementioned low-temperature sample storage repository, the control method further includes: when the low-temperature sample storage repository is transferring samples to the outside of the repository, first controlling the interface to be blocked, and then controlling the automatic door to be opened; when the low-temperature sample storage repository is transferring samples inside the repository, first controlling the automatic door to be closed, and then controlling the interface to be opened.
[0017] When employing the above technical solution, during sample transfer, the present invention uses a first moving mechanism to drive a second moving mechanism, causing the sealing element to block the interface. The connection with the outside is only through a buffer channel, effectively preventing humid and hot air from entering the first storage area, ensuring dry air inside the storage area, and thus guaranteeing the normal use of external equipment. It also allows for longer periods of manual placement or intervention. Furthermore, air entering from outside only frosts within the buffer channel, which, due to its proximity to the inlet / outlet and its small size, facilitates defrosting operations. Attached Figure Description
[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which: Figure 1 This is a schematic diagram of the overall structure of the low-temperature sample storage device of the present invention; Figure 2 This is a schematic diagram of the sealed interface of the material handling device in the low-temperature sample storage device of the present invention; Figure 3 This is a schematic diagram of the material retrieval device in the low-temperature sample storage warehouse of the present invention; Figure 4 This is a schematic diagram of the material retrieval device in the low-temperature sample storage warehouse of the present invention from another direction; Figure 5 This is a flowchart of the main steps of the control method for the low-temperature sample storage device of the present invention; The components are as follows: 1. Storage body; 11. Buffer channel; 12. First storage area; 13. Second storage area; 14. Entrance / exit; 2. Partition; 21. Connecting interface; 3. Material handling device; 31. First moving mechanism; 311. First platform; 312. First drive component; 313. First conveying assembly; 314. First lead screw; 315. Mounting base; 316. Slide; 32. Second moving mechanism; 321. Second platform; 322. Sealing component; 3221. Elastic component; 323. Second drive component; 324. Second conveying assembly; 325. Second lead screw; 326. Push plate; 327. Mounting plate; 328. Push rod; 33. Carrying platform; 34. Rotating mechanism; 341. Fixed base; 342. Third drive component; 343. Third conveying assembly; 4. Automatic door; 5. Frozen storage box. Detailed Implementation
[0019] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.
[0020] It should be noted that in the description of this invention, terms such as "inner" and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the relevant devices or elements must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention. Furthermore, ordinal numbers such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0022] like Figure 1 As shown, the low-temperature sample storage device provided by the present invention includes a storage body 1 and a material handling device 3. The storage body 1 contains a first storage area 12 and a buffer channel 11. One side of the buffer channel 11 has a connection interface 21 communicating with the first storage area 12, and the other side of the buffer channel 11 is configured to communicate with the outside of the storage body. A partition 2 is provided inside the storage body 1, dividing the interior of the storage body 1 into the first storage area 12 and the buffer channel 11. The partition 2 has a connection interface 21. An entrance / exit 14 is provided on the storage body 1, and an automatic door 4 is provided at the entrance / exit 14 to control the opening and closing of the entrance / exit 14, thereby controlling whether the other side of the buffer channel 11 is connected to or disconnected from the outside of the storage body. Specifically, when the connection interface 21 is blocked, the automatic door 4 opens; when the connection interface 21 is open, the automatic door 4 closes.
[0023] The storage chamber 1 also includes a second storage area 13. The second storage area 13, the first storage area 12, and the buffer channel 11 are arranged sequentially from the direction of the entrance / exit 14. The second storage area 13 is used to store samples, and its internal temperature is approximately -80°C. The first storage area 12 can be used as a buffer area for tube picking, box picking, and sample transfer, and its internal temperature is approximately -30°C. It can also be used directly as a storage area for sample storage. The buffer channel 11 is used for direct connection with the outside of the storage chamber for sample transfer, and its internal temperature is approximately -30°C.
[0024] like Figure 2 As shown, the material handling device 3 includes a first moving mechanism 31, a second moving mechanism 32, and a tray platform 33. The first moving mechanism 31 is disposed in the first storage area 12. The driving end of the first moving mechanism 31 is connected to the second moving mechanism 32 so as to drive the second moving mechanism 32 to move. The second moving mechanism 32 includes a sealing element 322. The first moving mechanism 31 can drive the sealing element 322 to move to block or open the interface 21. The driving end of the second moving mechanism 32 is connected to the tray platform 33 so as to drive the tray platform 33 to move.
[0025] Specifically, the first moving mechanism 31 first drives the second moving mechanism 32 to move toward the buffer channel 11 to block the interface 21, so that the first storage area 12 and the buffer channel 11 are not connected; then, the second moving mechanism 32 drives the tray stage 33 to move inside and outside the library to transfer samples, so that the air entering from outside the library will only frost inside the buffer channel 11.
[0026] The advantage of the above structure is that, during sample transfer, the first moving mechanism 31 drives the second moving mechanism 32 so that the sealing element 322 blocks the interface 21, and only the buffer channel 11 is connected to the outside of the cold storage. This ensures that the volume of hot and humid air entering the cold storage does not exceed the volume of the buffer channel 11, which is much smaller than the volume ratio of existing cold storage, thus achieving effective frost control and significant frost prevention.
[0027] like Figure 3 and Figure 4 As shown, the first moving mechanism 31 includes a first platform 311, a first driving member 312, a first conveying assembly 313, a first lead screw 314, a mounting base 315, and a slide 316. The first platform 311 is disposed in the first storage area 12. The first driving member 312 and the mounting base 315 are respectively fixedly disposed on the first platform 311. The driving end of the first driving member 312 is connected to the first end of the first conveying assembly 313. The second end of the first conveying assembly 313 is connected to the first lead screw 314. The first lead screw 314 is rotatably disposed on the mounting base 315. The slide 316 is threadedly connected to the first lead screw 314 and is connected to the second moving mechanism 32.
[0028] The first conveying assembly 313 includes a first pulley, a second pulley, and a conveyor belt. The driving end of the first driving member 312 is connected to the first pulley, and the second pulley is connected to the first lead screw 314. The first pulley and the second pulley are connected via the conveyor belt. Of course, the first conveying assembly 313 can also adopt a "sprocket + chain" transmission structure, as long as it can achieve the function of power transmission. In addition, the first moving mechanism 31 can also adopt a linear module structure and be connected to the second moving mechanism 32. All the above adjustments are within the protection scope of this invention.
[0029] Specifically, the first driving member 312 transmits power to the first lead screw 314 via the first transmission assembly 313. The first lead screw 314 rotates to drive the slide 316 to move horizontally relative to the first platform 311, thereby driving the second moving mechanism 32 to move horizontally relative to the first platform 311. Optionally, the first driving member 312 is a motor.
[0030] like Figure 3 and Figure 4The second moving mechanism 32 also includes a second platform 321, which is fixedly connected to the slide 316. A sealing element 322 is fixedly disposed on the second platform 321 near one end of the buffer channel 11. When the first moving mechanism 31 drives the second moving mechanism 32 to move toward the buffer channel 11, the sealing element 322 can block the interface 21, so that the first storage area 12 and the buffer channel 11 are independent of each other and do not communicate with each other.
[0031] An elastic element 3221 is provided on the sealing element 322. When the sealing element 322 seals the interface 21, the elastic element 3221 abuts against the partition 2, causing the elastic element 3221 to press against the partition 2, which can directly prevent the flow of hot and humid air and internal cold air, so as to ensure the sealing effect of the interface 21 and thus achieve effective frost control. For example, the elastic element 3221 is set as a sealing rubber ring or silicone strip, which is arranged around the sealing element 322.
[0032] like Figure 3 and Figure 4 The second moving mechanism 32 also includes a second driving member 323, a second conveying assembly 324, a second lead screw 325, a push plate 326, a mounting plate 327, and a push rod 328. The second driving member 323 and the mounting plate 327 are respectively fixedly mounted on the second platform 321. The mounting plate 327 is located on the second platform 321 at one end away from the buffer channel 11. The driving end of the second driving member 323 is connected to the first end of the second conveying assembly 324. The second end of the second conveying assembly 324 is connected to the second lead screw 325. The two ends of the second lead screw 325 are rotatably connected to the mounting plate 327 and the sealing member 322, respectively. The push plate 326 is threadedly connected to the second lead screw 325. The first end of the push rod 328 is connected to the push rod 328. The push rod 328 slidably passes through the sealing member 322, and the second end of the push rod 328 is connected to the box carrier 33. The box carrier 33 is configured to hold the cryopreservation box 5.
[0033] The second conveying component 324 has the same structure as the first conveying component 313. It can adopt a "pulley + conveyor belt" conveying structure or a "sprocket + chain" conveying mechanism, as long as it can achieve the function of power transmission. Taking the "pulley + conveyor belt" conveying structure as an example, the driving end of the second driving member 323 is connected to one of the pulleys, and the other pulley is connected to the second lead screw 325. The two pulleys are connected by a conveyor belt. In addition, the second moving mechanism 32 can also adopt a linear module structure and be connected to the carrier platform 33. All the above adjustments are within the protection scope of this invention.
[0034] A bearing is provided on the seal 322, and the push rod 328 passes through the bearing, allowing the push rod 328 to slide horizontally relative to the seal 322. When the seal 322 seals the interface 21, the clearance between the bearing and the push rod 328 is negligible compared to the connection between the inside and outside of the chamber. Therefore, when the automatic door 4 is opened, only the buffer channel 11 is connected to the outside, effectively preventing the flow of hot and humid air from the outside and cold air from the inside. The cold objects that the hot and humid air comes into contact with are limited to the extended push rod 328 and the tray platform 33, achieving effective frost control.
[0035] Specifically, the second driving member 323 transmits power to the second lead screw 325 via the second transmission assembly 324. The second lead screw 325 rotates, causing the push plate 326 to move horizontally relative to the second platform 321, and the push rod 328 to move horizontally relative to the sealing member 322, thereby causing the tray stage 33 to move horizontally, enabling the tray stage 33 to move inside and outside the storage area to achieve sample transfer. Optionally, the second driving member 323 is a motor.
[0036] The push rod 328 is designed as a hollow structure, and a heating wire is installed inside the hollow structure. This allows the push rod 328 to be heated when it extends out of the chamber, so that no frost will form when the push rod 328 returns to the chamber.
[0037] like Figure 3 and Figure 4 The material handling device 3 also includes a rotating mechanism 34. The driving end of the rotating mechanism 34 is connected to the first moving mechanism 31 to drive the first moving mechanism 31 to rotate horizontally, thereby driving the second moving mechanism 32 and the tray platform 33 to rotate horizontally. The rotating mechanism 34 includes a fixed base 341, a third driving member 342, and a third conveying assembly 343. The fixed base 341 is fixedly disposed in the first storage area 12, the third driving member 342 is fixedly disposed on the fixed base 341, the third driving member 342 is connected to the first end of the third conveying assembly 343, and the second end of the third conveying assembly 343 is connected to the first platform 311.
[0038] The third transmission component 343 includes a first gear and a second gear that are meshed together. The first gear and the second gear are rotatably mounted on the fixed base 341. The drive end of the third drive member 342 is connected to the first gear, and the second gear is fixedly mounted on the bottom of the first platform 311.
[0039] Specifically, the third driving component 342 sequentially drives the first gear and the second gear to cause the first platform 311 to rotate horizontally relative to the fixed base 341. Optionally, the third driving component 342 is a motor.
[0040] Based on the various embodiments described above, the present invention also provides a method for controlling a low-temperature sample storage facility. For example... Figure 5As shown, the control method of the present invention includes: S1, firstly controlling the first moving mechanism 31 to drive the second moving mechanism 32 to move toward the buffer channel 11, so that the sealing element 322 blocks the interface 21, thereby making the first storage area 12 and the buffer channel 11 disconnected; S2, then controlling the second moving mechanism 32 to drive the carrier stage 33 to move inside and outside the storage room to perform sample transfer, so that the air entering from outside the storage room only frosts inside the buffer channel 11.
[0041] In some embodiments, taking single-box sample warehousing as an example, when warehousing a single box, the first moving mechanism 31 is first controlled to drive the second moving mechanism 32 to move towards the buffer channel 11, so that the sealing element 322 on the second moving mechanism 32 abuts against the partition 2, thereby sealing the interface 21, isolating the first storage area 12 from the buffer channel 11, and placing the box carrier 33 inside the buffer channel 11. At this time, the automatic door 4 opens, and the second moving mechanism 32 drives the box carrier 33 to move towards the entrance / exit 14 and extend outside the storage area. The operator places the frozen box 5 to be warehousing on the box carrier 33. Then, the second moving mechanism 32 drives the box carrier 33 to first retract into the buffer channel 11, the automatic door 4 closes, and then the first moving mechanism 31 is controlled to drive the second moving mechanism 32 to retract into the first storage area 12. Finally, the rotating mechanism 34 is controlled to drive the first moving mechanism 31 to rotate, so that the box carrier 33 faces the storage area 13, and the robotic arm places the frozen box 5 into the storage area 13, thereby completing the warehousing operation. Similarly, the outbound operation is the opposite of the inbound operation, and will not be elaborated further here.
[0042] Furthermore, the control method of the present invention also includes:
[0043] When transferring samples between the low-temperature sample storage facility and the outside, first control the sealing of interface 21, and then control the opening of automatic door 4;
[0044] When the low-temperature sample storage device is transferring samples inside the storage device, the automatic door 4 is closed first, and then the interface 21 is opened.
[0045] In some embodiments, when samples are being moved in or out of the storage facility, the interface 21 is first sealed to ensure that the first storage area 12 and the buffer channel 11 are isolated from each other. Then, the automatic door 4 is controlled to open or close, so as to realize the transfer of samples inside and outside the storage facility. After the samples have been moved in or out of the storage facility, when transferring samples inside the storage facility, it is necessary to ensure that the automatic door 4 is closed before controlling the interface 21 to open, so as to prevent hot and humid air from entering the first storage area 12 through the buffer channel 11, which could cause frost formation inside the storage facility and adversely affect the samples and equipment inside the storage facility.
[0046] Based on the above-described embodiments, during sample transfer, the present invention drives the second moving mechanism 32 via the first moving mechanism 31, causing the sealing element 322 to block the interface 21. The connection with the outside is only through the buffer channel 11, effectively preventing hot and humid air from entering the first storage area 12, ensuring dry air inside the storage area, and thus guaranteeing the normal use of external equipment. It also allows for longer periods of manual placement or intervention. Furthermore, air entering from outside the storage area only frosts within the buffer channel 11. Since the buffer channel 11 is close to the inlet / outlet 14 and has a small volume, defrosting is easily performed.
[0047] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.
Claims
1. A cryogenic sample storage library characterized by, The low-temperature sample storage library comprises a library body (1) and a material taking device (3), the first storage area (12) and the buffer channel (11) are arranged in the library body (1), one side of the buffer channel (11) is provided with the docking port (21) communicated with the first storage area (12), and the other side of the buffer channel (11) is arranged to be capable of being communicated with outside the library; The material taking device (3) comprises a first moving mechanism (31), a second moving mechanism (32) and a box carrying table (33), the first moving mechanism (31) is arranged in the first storage area (12), the driving end of the first moving mechanism (31) is connected with the second moving mechanism (32), so that the second moving mechanism (32) can be driven to move, the second moving mechanism (32) comprises a sealing piece (322), the first moving mechanism (31) can drive the sealing piece (322) to move, so as to block or open the docking port (21), and the driving end of the second moving mechanism (32) is connected with the box carrying table (33), so that the box carrying table (33) can be driven to move.
2. The cryogenic sample storage vault of claim 1, wherein, The library body (1) is provided with a partition plate (2), the partition plate (2) divides the library body (1) into the first storage area (12) and the buffer channel (11), and the docking port (21) is formed in the partition plate (2).
3. The cryogenic sample storage vault of claim 2, wherein, The first moving mechanism (31) comprises a first platform (311), a first driving piece (312), a first conveying assembly (313), a first screw rod (314), a mounting seat (315) and a sliding seat (316), the first platform (311) is arranged in the first storage area (12), the first driving piece (312) and the mounting seat (315) are fixedly arranged on the first platform (311), the driving end of the first driving piece (312) is connected with the first end of the first conveying assembly (313), the second end of the first conveying assembly (313) is connected with the first screw rod (314), the first screw rod (314) is rotatably arranged on the mounting seat (315), the sliding seat (316) is in threaded connection with the first screw rod (314), and the sliding seat (316) is connected with the second moving mechanism (32).
4. The cryogenic sample storage vault of claim 3, wherein, The second moving mechanism (32) further comprises a second platform (321), and the sealing piece (322) is fixedly arranged on one end of the second platform (321) close to the buffer channel (11); and The second moving mechanism (32) further comprises a second platform (321), and the sealing piece (322) is fixedly arranged on one end of the second platform (321) close to the buffer channel (11); and The second moving mechanism (32) further comprises a second driving member (323), a second transmission assembly (324), a second screw rod (325), a push plate (326), a mounting plate (327) and a push rod (328). The second platform (321) is connected with the sliding base (316). The second driving member (323) and the mounting plate (327) are fixedly arranged on the second platform (321) respectively. The mounting plate (327) is located at one end of the second platform (321) away from the buffer channel (11). The driving end of the second driving member (323) is connected with the first end of the second transmission assembly (324). The second end of the second transmission assembly (324) is connected with the second screw rod (325). The two ends of the second screw rod (325) are rotatably connected with the mounting plate (327) and the sealing plate (322) respectively. The push plate (326) is threadedly connected with the second screw rod (325). The first end of the push rod (328) is connected with the push rod (328). The push rod (328) slidably penetrates through the sealing plate (322) and the second end of the push rod (328) is connected with the cartridge table (33).
5. The cryogenic sample storage vault of claim 4, wherein, The push rod (328) is provided with a hollow structure. A heating wire is arranged in the hollow structure.
6. The cryogenic sample storage vault of claim 3, wherein, The material taking device (3) further comprises a rotating mechanism (34). The driving end of the rotating mechanism (34) is connected with the first moving mechanism (31) to drive the first moving mechanism (31) to rotate horizontally, thereby driving the second moving mechanism (32) and the cartridge table (33) to rotate horizontally.
7. The cryogenic sample storage vault of claim 6, wherein, The rotating mechanism (34) comprises a third driving member (342) and a third transmission assembly (343). The third driving member (342) is fixedly arranged in the first storage area (12). The third driving member (342) is connected with the first end of the third transmission assembly (343). The second end of the third transmission assembly (343) is connected with the first platform (311).
8. The cryogenic sample storage vault of claim 1, wherein, An entrance (14) is arranged on the library body (1). An automatic door (4) is arranged at the entrance (14) to control the opening and closing of the entrance (14). When the docking port (21) is blocked, the automatic door (4) is opened. When the docking port (21) is opened, the automatic door (4) is closed.
9. A method of controlling a cryosample storage library, characterized by, The low-temperature sample storage library comprises the low-temperature sample storage library according to any one of claims 1 to 8; The control method comprises: First, the first moving mechanism (31) is controlled to drive the second moving mechanism (32) to move towards the buffer channel (11), so that the sealing member (322) blocks the docking port (21), thereby making the first storage area (12) and the buffer channel (11) not communicated with each other. Then, the second moving mechanism (32) is controlled to drive the cartridge table (33) to move in and out of the library to perform sample transmission, so that the air entering from outside the library only performs frosting in the buffer channel (11).
10. The control method of a cryogenic sample storage according to claim 9, wherein, The control method further comprises: When the low-temperature sample storage library is in sample transmission outside the library, the docking interface (21) is controlled to be closed first, and then the automatic door (4) is controlled to be opened; When the low-temperature sample storage library is in sample transmission inside the library, the automatic door (4) is controlled to be closed first, and then the docking interface (21) is controlled to be opened.