A cell storage device and storage method

Abstract

This invention discloses a cell storage device and method, belonging to the technical field of cell storage devices. The cell storage device includes a container and multiple test tube racks arranged in a circular array within the container, with test tube boxes embedded in each rack. It also includes: a lifting plate arranged along the axial direction of the container, with a sliding component slidably mounted on one side of the lifting plate; a protrusion fixedly connected to the test tube box; and a protrusion fixed to the test tube rack, the protrusion and the protrusion being offset from each other in a vertical plane. By arranging a single driving component along the axial direction of the container, the test tube racks can move along the axial direction of the container, and the test tube boxes can move radially along the container, maximizing the saving of space occupied by the driving component within the container, thereby indirectly increasing the storage capacity of the test tube racks.

Description

Technical Field

[0001] This invention relates to the field of cell storage device technology, and particularly to a cell storage device and storage method. Background Technology

[0002] Cell and tissue storage devices are specialized equipment used for long-term or short-term preservation of cell and tissue samples to maintain their activity and biological function. They are widely used in the medical, scientific research and biotechnology fields.

[0003] Currently, in cell storage devices, test tube racks are typically arranged in a circular array inside the container to facilitate the retrieval of the corresponding test tubes. The drive assembly for retrieving the test tubes is then adapted to be located inside the container. Traditional drive assemblies require power units to be arranged in both the axial and diametrical directions of the container to facilitate the ejection of the test tubes through openings in the container. However, arranging power units in different directions undoubtedly occupies internal space within the container, resulting in a decrease in the overall storage capacity of the test tube rack. In conclusion, the drive assembly in traditional storage devices still has room for improvement.

[0004] Therefore, it is necessary to provide a cell storage device and storage method to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a cell storage device to solve the problem mentioned in the background art that the driving component of the existing storage device needs to be arranged with power units in both the axial direction and the diameter direction of the tank to facilitate the push-out of the corresponding test tubes through the opening on the tank. However, since the power units are arranged in different directions, this will undoubtedly occupy the internal space of the tank, resulting in a decrease in the overall storage capacity of the test tube rack.

[0006] Based on the above ideas, the present invention provides the following technical solution: a cell storage device, comprising a tank and multiple sets of test tube racks disposed within the tank, the multiple sets of test tube racks being arranged in a circular array and each test tube rack having a test tube box embedded therein, and further comprising: A lifting plate is arranged along the axial direction of the tank body, and a sliding component is slidably assembled on one side of the lifting plate; The protrusion is fixedly connected to the test tube box; A protrusion is fixed to the test tube rack, and the protrusion and the protrusion are offset from each other on the vertical plane; The support member is hinged to the lifting plate. The support member is located on one side of the lifting plate and is arranged in two sets along the tank axis. When the two sets of support members are located at the bottom of the protrusion and the bottom of the protrusion respectively and are pressed to a horizontal state, the lifting plate and the square tube arranged in the tank are engaged by a snap-fit ​​assembly, so that the lifting plate can only slide upward relative to the square tube. A push rod, located on top of the lower support and slidably engaged with the lifting plate, can push the test tube box through the push rod to allow the test tube box to be discharged from the opening on the tank when the sliding member moves downward relative to the lifting plate.

[0007] As a further aspect of the present invention: the sliding member and the push rod are connected by a transmission assembly, the transmission assembly including a driving gear, a driven gear and a transmission unit disposed between the two, the driving gear being disposed between the sliding member and the lifting plate, and the side wall of the sliding member being provided with a second transmission tooth meshing with the driving gear, the driven gear being disposed above the push rod, and the push rod being provided with a first transmission tooth meshing with the driven gear.

[0008] As a further aspect of the present invention: the snap-fit ​​assembly includes a sliding plate that slides with the lifting plate. The sliding plate has a groove, and an extrusion member is embedded in the groove. The cross-section of the extrusion member and the groove is a parallelogram. A snap-fit ​​member is elastically connected to the outer side of the sliding plate. The portion of the snap-fit ​​member extending to the outer side of the sliding plate is set as an inclined surface. Multiple snap-fit ​​grooves that cooperate with the snap-fit ​​member are evenly opened on the inner wall of the square tube. A hook is fixedly provided at the bottom of the extrusion member. The hook is elastically connected to the lifting plate along the axial direction of the tank. Support rods are respectively provided on opposite sides of the two sets of support members. The bottom end of the support rod slides with the support member and can drive the support member to deflect upward. A telescopic rod is hinged between the two sets of support rods. The telescopic rod is located at the hook.

[0009] As a further aspect of the present invention: a bottom plate is provided at the bottom of the tank, and multiple sets of partitions are fixed on the top of the bottom plate, and the test tube rack is slidably disposed between two adjacent sets of partitions.

[0010] As a further embodiment of the present invention: a strip groove is provided on both sides of the partition, and a retaining strip that slides in cooperation with the strip groove is fixedly provided on the side of the test tube rack.

[0011] As a further aspect of the present invention: a rotating shaft is fixedly provided on the bottom surface of the base plate, and the rotating shaft passes through the tank and is rotatably connected to the tank.

[0012] As a further aspect of the present invention: a U-shaped limiting member is fixedly connected to one side of the lifting plate, and the sliding member slides within the limiting member.

[0013] As a further aspect of the present invention: limiting grooves are provided on both inner side walls of the limiting member, and sliding strips that slide in cooperation with the limiting grooves are fixedly provided on both side walls of the sliding member.

[0014] As a further aspect of the present invention: the projection of the test tube rack on the horizontal plane is a fan-shaped structure, and multiple sets of test tube racks are distributed in a ring array inside the tank.

[0015] A storage method using the above-mentioned cell storage device includes the following steps: driving a lifting plate to move downwards; when the two sets of support members are respectively located at the corresponding protrusions and the bottom of the protrusions, driving the lifting plate to move upwards, so that the test tube box moves to the opening; driving a sliding member to move downwards relative to the lifting plate; the sliding member drives a push rod to move through a transmission assembly; and the push rod pushes the test tube box out from the opening.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the device only needs to arrange a single drive component in the axial direction of the tank to realize the movement of the test tube rack along the axis of the tank and the radial movement of the test tube box along the tank, which can save the space occupied by the drive component in the tank to the maximum extent, thereby indirectly increasing the storage capacity of the test tube rack. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the opening on the tank body of the present invention; Figure 3 This is a diagram showing the distribution of the test tube rack according to the present invention; Figure 4 This is a schematic diagram of the base plate and rotating shaft structure of the present invention; Figure 5 This is a schematic diagram of the extraction component structure of the present invention; Figure 6 This is a schematic diagram of the transmission component structure of the present invention; Figure 7 This is a schematic diagram illustrating the interaction between the hook and the telescopic rod of the present invention; Figure 8 This is a cross-sectional view of the square tube, lifting plate, and sliding component of the present invention; Figure 9 This is the present invention. Figure 3 A magnified structural diagram at point A; Figure 10 This is the present invention. Figure 7 A magnified structural diagram at point B; Figure 11 This is the present invention. Figure 8 A magnified structural diagram at point C; Figure 12 This is a schematic diagram of the cooperation between the support rod and the telescopic rod of the present invention.

[0019] In the diagram: 1. Base; 2. Tank body; 201. Opening; 3. Test tube box; 301. Protrusion; 4. Drive assembly; 5. Square tube; 501. Slot; 6. Test tube rack; 601. Support; 602. Protrusion; 603. Locking strip; 7. Partition; 8. Base plate; 801. Rotating shaft; 9. Lifting plate; 10. Limiting component; 11. Driven gear; 12. Push rod; 1201. First transmission gear; 13. Sliding component; 1301. Sliding strip; 1302. Second transmission gear; 14. Transmission unit; 15. Connecting component; 1501. Inclined surface; 16. Telescopic rod; 17. Hook; 1701. Protruding ring; 18. Elastic component; 19. Support rod; 1901. Connecting component; 1902. Positioning strip; 20. Drive gear; 21. Support component; 22. Extrusion component; 23. Slide plate. Detailed Implementation

[0020] like Figures 1-12 As shown, a cell storage device includes a base 1 and a container 2 disposed on top of the base 1. Multiple sets of test tube racks 6 for storing test tube boxes 3 are arranged inside the container 2. To improve the utilization of storage space and the convenience of retrieving the test tube boxes 3, the projection of the test tube racks 6 on the horizontal plane is a fan-shaped structure, and the multiple sets of test tube racks 6 are distributed in a circular array inside the container 2. It should be noted that the test tube racks 6 can move relative to the container 2 along the axial direction of the container 2. Figures 1-2 As shown, the tank body 2 has an opening 201 on its wall for the test tube box 3 to be led out. This structure makes it easy to take out the test tube box 3 from any test tube rack 6.

[0021] Of course, a camera unit can be installed inside the tank 2 to monitor the position of each test tube box 3 and display it on an external display screen, which is beneficial for extracting the corresponding test tube box 3. This part of the structure can be selected from the existing technology, and will not be described in detail here.

[0022] Combination Figures 3-11 As shown, an extraction component is provided at the axis of the cylinder formed by multiple test tube racks 6, and the extraction component is arranged along the axis of the tank 2. The extraction component can lift any test tube box 3 to the opening 201 and push it out of the tank 2 through the opening 201. Specifically, the extraction assembly includes a lifting plate 9 and a sliding member 13 that slides on one side of the lifting plate 9. A push rod 12 is provided near the bottom of the lifting plate 9. The push rod 12 passes through the lifting plate 9 and can slide relative to the lifting plate 9 along the diameter direction of the tank body 2. Figures 7-8As shown, two sets of support members 21 are hinged on the lifting plate 9, and the push rod 12 is located on the top of the lower support member 21 and is attached to the support member 21. When the support member 21 is in a horizontal state, the support member 21 can only deflect upward relative to the lifting plate 9. It should be noted that when the push rod 12 coincides with the lower support member 21 on the horizontal plane, the support member 21 is limited to the horizontal plane. Furthermore, the sliding member 13 and the push rod 12 are connected by a transmission assembly, so that when the sliding member 13 moves relative to the lifting plate 9 along the axis of the tank 2, it can drive the push rod 12 to move along the diameter of the tank 2. In this structure, the vertical movement of the sliding member 13 relative to the lifting plate 9 is converted into a horizontal thrust on the push rod 12, thereby saving the space occupied by the related structures that drive the push rod 12 to move between multiple test tube racks 6, thereby increasing the capacity of the test tube rack 6. When the support member 21 moves the test tube rack 6 upward along the axis of the tank 2 to a certain position, it is necessary to maintain the stability of the test tube rack 6. This facilitates the pushing of a test tube box 3 on the test tube rack 6 from the opening 201 through the cooperation of the sliding member 13 and the push rod 12. Based on this, a square tube 5 is sleeved on the outside of the lifting plate 9, and the square tube 5 is fixed to the tank 2. The lifting plate 9 and the square tube 5 are connected by a snap-fit ​​assembly. When both sets of support members 21 are in a horizontal state, the lifting plate 9 and the square tube 5 cooperate through the snap-fit ​​assembly, so that the lifting plate 9 can only move upward relative to the square tube 5.

[0023] The test tube rack 6 is fixedly provided with a protrusion 602, while the test tube box 3 is fixedly provided with a protrusion 301 on the side near the extraction component, combined with Figure 5 As shown, the protrusion 301 and the protrusion 602 are offset from each other on the vertical plane. During the process of the extraction component driving the test tube rack 6 to move upward, the upper support 21 is at the bottom of the protrusion 602, while the lower support 21 is at the bottom of the protrusion 301.

[0024] During the synchronous descent of the lifting plate 9 and the sliding member 13, the two sets of support members 21 contact the protrusions 602 and 301 respectively and are squeezed and deflected upwards. When the two sets of support members 21 move to the bottom of the corresponding protrusions 301 and 602, they drive the sliding member 13 and the lifting plate 9 to move upwards. Since both sets of support members 21 are under pressure and in a horizontal state, the lifting plate 9 and the square tube 5 are engaged by a snap-fit ​​assembly. When the support member 21 moves the corresponding test tube box 3 to the opening 201, it drives the sliding member 13 to move downwards relative to the lifting plate 9. During this process, the transmission assembly drives the push rod 12 to move outwards along the diameter of the tank 2 and pushes the test tube box 3 out of the opening 201, thus completing the process. When the test tube boxes 3 are removed from the test tube rack 6, the protrusions 301 on the test tube boxes 3 are misaligned with the support members 21 below. However, since the push rod 12 is attached to the top of the support members 21 below, the lifting plate 9 can remain stable relative to the square tube 5 after the test tube boxes 3 are removed. As the sliding member 13 moves upward relative to the lifting plate 9, the push rod 12 gradually retracts and resets. When the push rod 12 is completely misaligned with the support members 21 below, the support members 21 below have the condition to deflect upward, thereby releasing the engagement between the lifting plate 9 and the square tube 5, allowing the lifting plate 9 to move freely in the vertical direction relative to the square tube 5, which is beneficial for the extraction component to lower the test tube rack 6 to the initial position.

[0025] Combination Figure 8 As shown, the transmission assembly includes a driving gear 20, a driven gear 11, and a transmission unit 14 disposed between the two. The driving gear 20 is disposed between the sliding member 13 and the lifting plate 9, and the side wall of the sliding member 13 is provided with a second transmission tooth 1302 that meshes with the driving gear 20. The driven gear 11 is disposed above the push rod 12, and the push rod 12 is provided with a first transmission tooth 1201 that meshes with the driven gear 11. The transmission unit 14 can be a belt or a chain to achieve synchronous rotation of the driving gear 20 and the driven gear 11.

[0026] The snap-fit ​​assembly includes a slide plate 23 disposed on the lifting plate 9, the slide plate 23 being able to slide horizontally relative to the lifting plate 9, and engaging... Figure 11As shown, the slide plate 23 has a parallelogram-shaped groove, and an extrusion member 22 is embedded in the groove. The extrusion member 22 is a parallelogram-shaped plate structure, that is, the two sides of the extrusion member 22 are inclined. In this embodiment, the movement of the extrusion member 22 along the axis of the tank 2 is converted into a thrust on the slide plate 23 in the horizontal direction, thereby enabling the locking or unlocking of the lifting plate 9 and the square tube 5. Of course, a snap-fit ​​member 15 is elastically connected to the outer side of the slide plate 23. It should be noted that the part of the snap-fit ​​member 15 extending to the outside of the slide plate 23 is provided with a slope 1501, and the inner wall of the square tube 5 is evenly provided with multiple slots 501 that cooperate with the snap-fit ​​member 15. During the process of the lifting plate 9 moving upward relative to the square tube 5, the slope 1501 on the snap-fit ​​member 15 can be pressed against the side edge of the slot 501. When the snap-fit ​​member 15 pops out and inserts into the slot 501, the lifting plate 9 cannot move downward relative to the square tube 5. Furthermore, a hook 17 is fixedly provided at the bottom of the extrusion member 22. The hook 17 is elastically connected to the lifting plate 9 along the axial direction of the tank body 2. Support rods 19 are respectively provided on opposite sides of the two sets of support members 21. It should be noted that the bottom end of the support rod 19 is slidably engaged with the support member 21 and can drive the support member 21 to deflect upward. The top ends of the two sets of support rods 19 are in the same horizontal plane, and the top ends of the two sets of support rods 19 are connected by a telescopic rod 16. Specifically, the two ends of the telescopic rod 16 are hinged to the support rods 19 on both sides, respectively. Figure 7 As shown, the telescopic rod 16 is located at the hook 17.

[0027] In summary, when both sets of support members 21 are under pressure and in a horizontal state, the lifting plate 9 cooperates with the square tube 5 through the snap-fit ​​assembly. Specifically, during the extraction of the test tube box 3, the lifting plate 9 and the sliding member 13 are driven to move downwards synchronously. When the lower support member 21 moves to the bottom of the corresponding protrusion 301 of the test tube box 3, the upper support member 21 is at the bottom of the corresponding protrusion 602 on the test tube rack 6. As the sliding member 13 and the lifting plate 9 move upwards, both sets of support members 21 are under pressure and remain in a horizontal state, as shown in the following figure. Figure 7 As shown, when both sets of support members 21 are compressed and deflected downwards to a horizontal state, the telescopic rod 16 can be pulled downwards to its lowest position, and at this time the telescopic rod 16 is retracted to its shortest state, combined with... Figure 8 , Figure 11As shown, during the process of the telescopic rod 16 pulling the hook 17 downward, the hook 17 can drive the extruder 22 to move downward. Since the extruder 22 and the slide are both parallelogram structures, the extruder 22 can drive the slide 23 to move outward relative to the lifting plate 9 during the downward movement of the slide relative to the slide plate 23. As a result, the snap-fit ​​15 can cooperate with the snap-fit ​​501 to realize the unidirectional movement of the lifting plate 9 relative to the square tube 5. When the test tube rack 6 moves upward and the corresponding test tube box 3 moves to the opening 201, the sliding member 13 is driven to move downward relative to the lifting plate 9. During this process, the meshing of the second transmission gear 1302 with the active gear 20 can drive the transmission unit 14 to rotate, and then drive the driven gear 11 to rotate through the transmission unit 14. As a result, the driven gear 11 can push the push rod 12 outward through the force of the action with the first transmission gear 1201, so that the push rod 12 can push the test tube box 3 out from the opening 201. Subsequently, when the sliding member 13 moves upward relative to the lifting plate 9 and resets, the push rod 12 also moves in the opposite direction and resets. Specifically, when the push rod 12 is completely misaligned with the support member 21, the lower support member 21 has the condition to deflect upward. Figure 7 , Figure 12 It can be seen that in this state, the hook 17 can spring up and pull the telescopic rod 16 so that the telescopic rod 16 is in an inclined state. The pressing member 22 at the top of the hook 17 will also push the slide plate 23 to move away from the slot 501 so that the snap-fit ​​member 15 is disengaged from the slot 501. This allows the lifting plate 9 to move freely in the vertical direction relative to the square tube 5, which makes it easier to lower the test tube rack 6 to the bottom of the tank 2. From the above working process, it can be seen that only a single drive component 4 needs to be arranged in the axial direction of the tank 2 to realize the movement of the test tube rack 6 along the axis of the tank 2 and the radial movement of the test tube box 3 along the tank 2. This can save the space occupied by the drive component 4 in the tank 2 to the maximum extent, thereby indirectly increasing the storage capacity of the test tube rack 6.

[0028] Combination Figures 3-9 As shown, the bottom of the tank 2 is provided with a bottom plate 8, and multiple sets of partitions 7 are fixed on the top of the bottom plate 8. The multiple sets of partitions 7 are evenly distributed in a circular array, and the test tube rack 6 is arranged between two adjacent sets of partitions 7. Figure 9As shown, the partition 7 has strip grooves on both sides, and the test tube rack 6 has a locking strip 603 fixedly installed on the side, which slides in cooperation with the strip groove, so that the test tube rack 6 can only slide along the axis of the tank 2 relative to the partition 7. The bottom surface of the base plate 8 is fixedly provided with a rotating shaft 801, which passes through the tank 2 and is rotatably connected to the tank 2 through a sealed bearing. One end of the rotating shaft 801 extends into the base 1 and is connected to the output end of the motor in the base 1, thereby driving the base plate 8 and the multiple sets of test tube racks 6 on top to rotate, so that the extraction component can pull out any test tube box 3 from the opening 201. It should be noted that the support member 21 can pass through the protrusion 301 or protrusion 602 between two adjacent sets of test tube racks 6, so that the extraction component can be in the position above the test tube rack 6 in the initial state.

[0029] from Figures 5-9 , Figure 11 As can be seen, a U-shaped limiting member 10 is fixedly connected to one side of the lifting plate 9, and the sliding member 13 slides within the limiting member 10. Specifically, limiting grooves are formed on both inner side walls of the limiting member 10, and sliding strips 1301 that slide in cooperation with the limiting grooves are fixedly provided on both side walls of the sliding member 13. The aforementioned driving component 4 can be a hydraulic rod or an electric cylinder, etc. The telescopic end of the driving component 4 passes through the top of the limiting member 10 and is fixedly connected to the sliding member 13 to drive the sliding member 13 to move relative to the lifting plate 9. The driving component 4 can selectively connect with the tank 2 or the... The square tube 5 is fixedly connected. In actual use, when the drive component 4 drives the sliding member 13 to move downward, the lifting plate 9 will descend synchronously. When the test tube box 3 is pushed out from the opening 201 and the push rod 12 is reset and completely misaligned with the support member 21, the sliding member 13 moves upward to the limit position relative to the limiting member 10 and the top of the sliding member 13 is attached to the limiting member 10. After the lifting plate 9 is disengaged from the square tube 5, the stability of the lifting plate 9 can still be maintained by the cooperation of the sliding member 13 and the limiting member 10, which helps to prevent the stored test tubes from shaking or vibrating.

[0030] Combination Figure 1 As shown, the top of the tank body 2 is sealed by an end cap that is hinged to it, and a sealing plate is provided at the opening 201. The sealing plate is hinged to the tank body 2 to block the opening 201.

[0031] Combination Figure 5 As shown, the test tube rack 6 is provided with a support part 601 for supporting the test tube box 3, so that the test tube box 3 can move along the test tube rack 6 and be led out from the opening 201.

[0032] Combination Figure 6As shown, both the driving gear 20 and the driven gear 11 have a connecting shaft fixed at their axes, and the connecting shaft is rotatably engaged with the base fixed on the lifting plate 9. The transmission unit 14 is located between the two connecting shafts.

[0033] Combination Figure 7 As shown, the side of the lifting plate 9 away from the sliding member 13 is recessed inward to form an installation chamber for installing the support member 21, the support rod 19, and the sliding plate 23. Specifically, an abutment part is provided inside the installation chamber and at the bottom of the support member 21, so that the support member 21 cannot deflect downward after being in a horizontal state. Furthermore, a horizontal shaft is fixedly provided at one end of the support member 21 inside the installation chamber, and the horizontal shaft is rotatably connected to the lifting plate 9. Figure 10 As shown, a connector 1901 is rotatably provided at the bottom end of the support rod 19. The connector 1901 has a T-shaped cross-section in the axial direction, while the side of the support member 21 has a T-shaped groove that slides with the connector 1901. When the hook 17 pulls the telescopic rod 16 upward to make the support rod 19 on one side rise synchronously, the cooperation between the connector 1901 and the T-shaped groove can pull the support member 21 to deflect upward.

[0034] Combination Figures 7-8 , Figure 11 As shown, a connecting block is fixedly installed on the lifting plate 9, and the hook 17 passes through the connecting block and slides with it. It should be noted that a protruding ring 1701 is fixedly sleeved on the hook 17, and an elastic element 18 sleeved on the outside of the hook 17 is located between the connecting block and the protruding ring 1701. The elastic element 18 can be a spring to achieve elastic cooperation between the hook 17 and the lifting plate 9.

[0035] Combination Figures 11-12 As shown, the snap-fit ​​member 15 slides in the mounting groove on one side of the slide plate 23, and a spring is fixedly provided between the snap-fit ​​member 15 and the end face of the mounting groove to achieve elastic cooperation between the snap-fit ​​member 15 and the slide plate 23. The top end of the support rod 19 is provided with a groove, and the two ends of the telescopic rod 16 are hinged to the groove by pins, so that the telescopic rod 16 can deflect relative to the support rod 19. It should be noted that the outer side of the support rod 19 can be fixed with the positioning strip 1902, and the side wall of the mounting chamber is adapted to provide a positioning groove for the positioning strip 1902 to slide. Specifically, the cross-section of the positioning groove and the positioning strip 1902 is T-shaped to prevent the positioning strip 1902 from separating from the positioning groove.

[0036] The above-disclosed examples are merely preferred embodiments of this application, intended to facilitate understanding and implementation by those skilled in the art. However, they cannot be used to limit the scope of this application. Therefore, equivalent variations made within the scope of this application are still within the scope of this application.

Claims

1. A cell storage device, comprising a container (2) and multiple sets of test tube racks (6) disposed within the container (2), the multiple sets of test tube racks (6) being arranged in a circular array and each test tube rack (6) having a test tube box (3) embedded thereon, characterized in that, Also includes: Lifting plate (9), the lifting plate (9) is arranged along the axial direction of the tank body (2), and a sliding component (13) is slidably assembled on one side of the lifting plate (9). The protrusion (301) is fixedly connected to the test tube box (3); A protrusion (602) is fixed on the test tube rack (6), and the protrusion (301) and the protrusion (602) are offset from each other on the vertical plane; The support member (21) is hinged to the lifting plate (9). The support member (21) is located on one side of the lifting plate (9) and is arranged in two sets along the axis of the tank body (2). When the two sets of support members (21) are located at the bottom of the protrusion (301) and the protrusion (602) respectively and are pressed to a horizontal state, the lifting plate (9) and the square tube (5) provided in the tank body (2) are engaged by a snap-fit ​​assembly, so that the lifting plate (9) can only slide upward relative to the square tube (5); The push rod (12) is located on top of the support (21) below and slides in cooperation with the lifting plate (9). When the sliding member (13) moves downward relative to the lifting plate (9), the push rod (12) can push the test tube box (3) so that the test tube box (3) is discharged from the opening (201) on the tank (2).

2. The cell storage device according to claim 1, characterized in that: The sliding member (13) and the push rod (12) are connected by a transmission assembly. The transmission assembly includes a driving gear (20), a driven gear (11), and a transmission unit (14) disposed between the two. The driving gear (20) is disposed between the sliding member (13) and the lifting plate (9), and the side wall of the sliding member (13) is provided with a second transmission tooth (1302) that meshes with the driving gear (20). The driven gear (11) is disposed above the push rod (12), and the push rod (12) is provided with a first transmission tooth (1201) that meshes with the driven gear (11).

3. A cell storage device according to claim 2, characterized in that: The snap-fit ​​assembly includes a slide plate (23) that slides with the lifting plate (9). The slide plate (23) has a groove, and a pressing member (22) is embedded within the groove. Both the pressing member (22) and the groove have parallelogram cross-sections. A snap-fit ​​member (15) is elastically connected to the outer side of the slide plate (23). The portion of the snap-fit ​​member (15) extending to the outer side of the slide plate (23) is set as a slope (1501). Multiple fasteners that cooperate with the snap-fit ​​member (15) are evenly distributed on the inner wall of the square tube (5). The bottom of the extrusion piece (22) is fixedly provided with a hook (17), which is elastically connected to the lifting plate (9) along the axial direction of the tank (2). Support rods (19) are respectively provided on the opposite sides of the two sets of support pieces (21). The bottom end of the support rod (19) is slidably engaged with the support piece (21) and can drive the support piece (21) to deflect upward. A telescopic rod (16) is hinged between the two sets of support rods (19), and the telescopic rod (16) is located at the hook (17).

4. A cell storage device according to claim 1, characterized in that: The bottom of the tank (2) is provided with a bottom plate (8), and multiple sets of partitions (7) are fixed on the top of the bottom plate (8). The test tube rack (6) is slidably disposed between two adjacent sets of partitions (7).

5. A cell storage device according to claim 4, characterized in that: The partition (7) has strip grooves on both sides, and the test tube rack (6) has a clip (603) fixedly installed on the side that slides with the strip groove.

6. A cell storage device according to claim 4, characterized in that: The bottom plate (8) is fixedly provided with a rotating shaft (801), which passes through the tank (2) and is rotatably connected to the tank (2).

7. A cell storage device according to claim 1, characterized in that: The lifting plate (9) is fixedly connected to a U-shaped limiting member (10) on one side, and the sliding member (13) slides within the limiting member (10).

8. A cell storage device according to claim 7, characterized in that: The limiting member (10) has limiting grooves on both sides of its inner side wall, and the sliding member (13) has a sliding strip (1301) fixedly provided on both sides of its side wall to slide in cooperation with the limiting groove.

9. A cell storage device according to claim 1, characterized in that: The projection of the test tube rack (6) on the horizontal plane is a fan-shaped structure, and multiple sets of test tube racks (6) are arranged in a ring array inside the tank (2).

10. A storage method using the cell storage device as described in any one of claims 2-3, characterized in that, The steps include: driving the lifting plate (9) to move downwards, and when the two sets of support members (21) are respectively located at the bottom of the corresponding protrusions (301) and protrusions (602), driving the lifting plate (9) to move upwards, so that the test tube box (3) moves to the opening (201); driving the sliding member (13) to move downwards relative to the lifting plate (9), and the sliding member (13) drives the push rod (12) to move through the transmission assembly, and pushes the test tube box (3) out from the opening (201) through the push rod (12).

Images