Medical egg collection and long-term storage device

Abstract

The present invention belongs to the technical field of medical cryopreservation, and discloses a medical egg collection and long-term storage device, including an insulation box, two groups of support legs are symmetrically arranged at the lower end of the insulation box, and a positioning tube is fixed at the upper end of the support leg, and the positioning tube is fixedly connected to the outer wall of the insulation box, and a sealing cover is clamped at the upper end of the insulation box, and a placement mechanism is arranged inside the insulation box, and the placement mechanism includes a first positioning plate, a second positioning plate and a fixing tube. The medical egg collection and long-term storage device can clamp and fix the storage tube placed inside the insulation box by providing a positioning mechanism that can be raised and lowered, and at the same time, the upper end of the insulation box can be sealed by using the cooperation of the first and second positioning plates and the anti-low temperature sealing ring, so as to avoid leakage of liquid nitrogen inside the insulation box when taking and placing the storage tube, reduce the loss of liquid nitrogen, and at the same time, the sealing to prevent leakage can also avoid the risk of frostbite.

Description

Technical Field

[0001] The invention relates to the technical field of medical cryopreservation, in particular to a medical egg collection and long-term preservation device. Background Art

[0002] Ovum (egg) is the reproductive cell of female organisms. Ovum is spherical, has a nucleus, and is covered by a yolk membrane. Animals and seed plants can produce ovum. In higher organisms, ovum is produced by the ovary. Reproductive medicine preservation is often used to preserve sperm, ovum and embryo specimens in liquid nitrogen to ensure activity. In the prior art, sperm, ovum and embryo specimens are generally placed in test tubes, and then the test tubes are placed in a cryopreservation device for storage and collection. Usually, liquid nitrogen is stored inside the cryopreservation device to provide a lower temperature.

[0003] However, there are still some problems with the existing medical egg collection and long-term storage devices when they are used:

[0004] There is a low-temperature preservation device for reproductive medicine with a Chinese patent application number of CN202310668061.4, which includes an installation platform, a push-pull rod, four groups of shock-absorbing mechanisms, four lockable universal wheels, a box mechanism, a test tube placement mechanism and a control mechanism. The present invention has the following advantages: by setting a partition plate, the preservation box has an interlayer, and combined with the cold preservation layer set on the outer wall of the partition plate, the preservation box has a good thermal insulation effect, providing a good storage environment for liquid nitrogen, reducing natural consumption, thereby reducing the amount of liquid nitrogen replenishment, and then reducing the preservation cost. A liftable test tube placement mechanism is set to ensure that the test tube can be completely immersed in liquid nitrogen during preservation to ensure the preservation effect. It can also be lifted from the liquid nitrogen when taking the specimen, which is convenient for taking the specimen and avoiding frostbite caused by liquid nitrogen to the human body. By setting a control system, it can detect the internal environment and sound and light alarm when the liquid nitrogen volatilization exceeds the warning value, with high safety performance;

[0005] Although the existing cryopreservation device can raise and lower the storage tube to avoid frostbite when taking out the sample, its lifting frame cannot effectively position the storage tube. If the device tilts, it will inevitably cause damage to the sample.

[0006] The existing preservation device cannot effectively seal the opening when it is raised or lowered, and cannot effectively seal after the sealing cover is opened, which will inevitably cause the liquid nitrogen inside the insulation box to leak. Not only is it easy to cause waste of liquid nitrogen leakage, but the leaked volatile liquid nitrogen is also prone to frostbite risks.

[0007] In response to the above problems, an innovative design was made based on the original medical egg collection and long-term storage device. Summary of the invention

[0008] The object of the present invention is to provide a medical egg collection and long-term storage device to solve the problems mentioned in the above background technology that the existing storage device cannot effectively position the storage tube, the placement stability of the egg storage tube is poor, and the sealing of the opening cannot be effectively guaranteed when taking and placing the storage tube, which will inevitably cause liquid nitrogen leakage and burns.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a medical egg collection and long-term storage device, comprising a heat preservation box:

[0010] Two groups of supporting legs are symmetrically arranged at the lower end of the heat preservation box, and a positioning tube is fixed to the upper end of the supporting legs, and the positioning tube is fixedly connected to the outer wall of the heat preservation box, and a sealing cover is clamped at the upper end of the heat preservation box;

[0011] The heat preservation box is provided with a placement mechanism inside, and the placement mechanism includes a first positioning plate, a second positioning plate and a fixing tube, the first positioning plate and the second positioning plate are both disc-shaped, and the upper and lower ends of the fixing tube are respectively fixedly connected to the first positioning plate and the second positioning plate, the upper end of the first positioning plate is penetrated by the preservation tube, and the middle parts of the first positioning plate and the second positioning plate are penetrated by a threaded screw;

[0012] The bottom end of the heat preservation box is provided with a transmission mechanism, and the transmission mechanism includes a transmission steel wire rope, a fixing rod and a limit block. The transmission steel wire rope is arranged inside the positioning tube, and the upper end of the transmission steel wire rope is connected with a fixing seat, and the fixing seat is fixedly connected to the outer wall of the sealing cover, the bottom end of the fixing rod is fixed to the inner wall of the heat preservation box, and the upper end of the fixing rod is fixed to the limit block;

[0013] A positioning mechanism is arranged inside the sealing cover, and the positioning mechanism comprises a limiting groove, a fixing plate and a limiting rod, the limiting rod is slidably connected to the sealing cover, a limiting groove is arranged on the upper end of the fixing plate, and the limiting groove and the limiting rod form a clamping structure.

[0014] Preferably, the upper end of the inner wall of the insulation box is designed as a circular structure, the outer walls of the first positioning plate and the second positioning plate are connected with anti-low temperature sealing rings, and the first positioning plate and the second positioning plate are both slidingly connected to the inner wall of the insulation box, and the upper end surface of the second positioning plate is provided with a positioning groove, and the positioning groove is snap-connected with the bottom end of the preservation tube.

[0015] By adopting the above technical solution, through the circular inner wall design of the insulation box, it can be ensured that the first positioning plate and the second positioning plate can be sealed with the insulation box during the lifting process, thereby avoiding leakage of liquid nitrogen inside the insulation box, and the design of the low-temperature resistant sealing ring can further improve the insulation effect.

[0016] Preferably, the inner wall of the heat preservation box is rotatably connected to the threaded screw, and the upper end of the threaded screw passes through the first positioning plate and the second positioning plate respectively, and the threaded screw is threadedly connected to the first positioning plate and the second positioning plate respectively.

[0017] By adopting the above technical solution, through the cooperation between the threaded screw and the first positioning plate and the second positioning plate, the rotation of the threaded screw can be used to control the lifting and lowering of the first positioning plate and the second positioning plate. After the positioning mechanism rises, the convenience of taking and placing the storage tube can be improved, and frostbite from liquid nitrogen can be avoided.

[0018] Preferably, a positioning ring is fixed to the outside of the fixed tube, and an auxiliary positioning frame is fixed to the outside of the positioning ring, and a first clamping block is fixed to the inner wall of the outer side of the auxiliary positioning frame, and a second clamping block is slidably connected to the inner wall of the inner side of the auxiliary positioning frame, and the second clamping block and the first clamping block are both designed in an arc shape on the opposite side, and the first clamping block and the second clamping block are consistent with the outer wall of the preservation tube;

[0019] A first movable rod is fixed to the inner end of the second clamping block, and the inner end of the first movable rod penetrates into the interior of the fixed tube. The first movable rod penetrates the first return spring, and the inner and outer sides of the first return spring are respectively fixedly connected to the inner wall of the auxiliary positioning frame and the first movable rod.

[0020] By adopting the above technical solution, the positioning ring is designed to facilitate further positioning of the positioning ring when placing the preservation tube. When the second clamping block moves toward the first clamping block, it can contact and clamp the outer wall of the preservation tube, thereby improving the stability of the preservation tube after placement and avoiding the movement of the preservation tube after the insulation box is tilted.

[0021] Preferably, a fixing rod passes through the bottom end of the threaded screw, and a limiting block is fixed to the upper end of the fixing rod, the bottom end of the fixing rod is fixedly connected to the inner wall of the insulation box, and the fixing rod and the limiting block are both rotatably connected to the threaded screw, the upper end of the limiting block is conical in design, and the outer wall of the upper end of the limiting block contacts the inner end of the first movable rod.

[0022] By adopting the above technical solution, through the cooperation of the limit block and the fixed rod, when the first positioning plate and the second positioning plate move downward, the limit block can be used to contact the first movable rod to push the first movable rod and the second clamping block to move toward the first clamping block, thereby controlling the first and second clamping blocks to clamp the preservation tube.

[0023] Preferably, a first roller is rotatably connected to the upper end of the positioning tube, and the left end of the first roller contacts the transmission wire rope, the upper end of the transmission wire rope is bolted to the fixing seat, and the fixing seat is rotatably connected to the outer wall of the sealing cover.

[0024] By adopting the above technical solution, the transmission wire rope can be connected to the sealing cover through the design of the fixed seat, and then the wire rope can be driven to move upward when the sealing cover rotates. The design of the first roller can prevent the transmission wire rope from contacting the inner wall of the positioning tube and causing wear when it moves.

[0025] Preferably, a transmission groove is opened on the inner wall of the lower end of the insulation box body, and the bottom end of the threaded screw rod penetrates into the transmission groove, and the bottom end of the threaded screw rod is fixedly connected to the first bevel gear, the bottom end of the insulation box body is rotatably connected to the transmission shaft, and the second bevel gear is fixed in the middle of the transmission shaft, and the second bevel gear is meshingly connected to the first bevel gear.

[0026] By adopting the above technical solution, the threaded screw can be driven to rotate synchronously when the transmission shaft rotates through the cooperation of the first bevel gear and the second bevel gear.

[0027] Preferably, torsion springs are passed through both ends of the transmission shaft, and both ends of the torsion springs are respectively fixedly connected to the transmission shaft and the inner wall of the insulation box, and both ends of the transmission shaft pass through the interior of the positioning tube, and retractable rollers are fixed at both ends of the transmission shaft, and the retractable rollers are fixedly connected to the bottom end of the transmission wire rope.

[0028] By adopting the above technical solution, when the torsion spring cooperates with the transmission shaft, the torsion spring can be used to drive the transmission shaft to rotate in the opposite direction and reset after the transmission shaft rotates, and the rotation of the transmission shaft can drive the retractable and retractable rollers to rotate synchronously.

[0029] Preferably, the upper right end of the thermal insulation box body is fixedly connected to the fixed plate, the right end of the sealing cover is fixed with a positioning seat, and the positioning seat is rotatably connected to the upper end of the fixed plate, the right end of the limit rod is designed with a slope, and the limit rod is embedded in the limit groove to form a snap-fit ​​structure, the left end of the limit rod is fixed with a second movable rod, and a second return spring passes through the left side of the second movable rod, the left and right ends of the second return spring are respectively fixedly connected to the sealing cover and the second movable rod, the left end of the second movable rod extends to the outside of the sealing cover, and the outer end of the second movable rod is connected with a handle.

[0030] By adopting the above technical solution, through the cooperation of the limit rod and the limit groove, the second return spring can be used to push the limit rod to move to the right, and then the limit rod extends into the limit groove, thereby limiting the rotation of the sealing cover to avoid being blocked by the sealing cover when taking and placing the preservation tube, and when sealing is required, the handle is pulled to make the limit rod disengage from the limit groove to release the restriction on the rotation of the sealing cover.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: the medical egg collection and long-term storage device can clamp and fix the storage tube placed inside the heat preservation box by providing a liftable positioning mechanism, and at the same time, by utilizing the cooperation of the first and second positioning plates and the anti-low-temperature sealing ring, the upper end of the heat preservation box can be sealed to avoid leakage of liquid nitrogen inside the heat preservation box when taking and placing the storage tube, thereby reducing the loss of liquid nitrogen, and at the same time, sealing to prevent leakage can also avoid the risk of frostbite.

[0032] 1. A transmission structure is provided to drive the placement mechanism to rise and fall synchronously when the sealing cover is opened and closed. When the sealing cover is opened, the placement mechanism drives the storage tube to move upward synchronously, seals the upper end of the insulation box, and at the same time raises the height of the storage tube for easy placement and retrieval. When the placement mechanism moves upward, it can actively control the clamping structure to loosen the fixation of the storage tube, thereby improving the convenience of use.

[0033] 2. The positioning mechanism can be provided to position the sealing cover after it is unfolded, so as to avoid the sealing cover from blocking the storage tube when taking it out. The structure is easy to operate and can quickly release the rotation limit of the sealing cover after taking out and placing the storage tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the expanded structure of the sealing cover of the present invention;

[0036] Figure 3 This is a schematic diagram of the first positioning frame and the fixing tube structure of the present invention;

[0037] Figure 4 It is a schematic diagram of the structure of the fixing plate and the limiting groove of the present invention;

[0038] Figure 5 It is a schematic diagram of the structure of the second clamping block and the first movable rod of the present invention;

[0039] Figure 6 It is a schematic diagram of the structure of the threaded screw rod and the limit block of the present invention;

[0040] Figure 7 It is a schematic diagram of the retractable and retractable winding roller and the transmission wire rope of the structure of the present invention;

[0041] Figure 8 It is a schematic diagram of the structure of the transmission shaft and the retractable and retractable roller of the present invention;

[0042] Fig. 9 This is a schematic diagram of the structure of the fixing rod and the limiting block of the present invention;

[0043] Fig.10 For the present invention Figure 8 Enlarged structural diagram at A in the middle.

[0044] In the figure: 1. insulation box body; 2. support leg; 3. positioning tube; 4. sealing cover; 5. positioning seat; 6. fixing plate; 7. first positioning plate; 8. fixing tube; 9. second positioning plate; 10. storage tube; 11. anti-low temperature sealing ring; 12. positioning groove; 13. threaded screw; 14. positioning ring; 15. auxiliary positioning frame; 16. first clamping block; 17. second clamping block; 18. first movable rod; 19. first return spring; 20. fixing rod; 21. limiting block; 22. fixing seat; 23. first roller; 24. transmission wire rope; 25. retracting and unreeling roller; 26. transmission shaft; 27. torsion spring; 28. first bevel gear; 29. ​​second bevel gear; 30. limiting groove; 31. limiting rod; 32. second return spring; 33. second movable rod; 34. handle; 35. transmission groove. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0046] See also Figure 1-10The present invention provides a technical solution: a medical egg collection and long-term storage device, comprising an insulation box 1, two groups of support legs 2 are symmetrically arranged at the lower end of the insulation box 1, and a positioning tube 3 is fixed to the upper end of the support leg 2, and the positioning tube 3 is fixedly connected to the outer wall of the insulation box 1, and a sealing cover 4 is clamped at the upper end of the insulation box 1; a positioning mechanism is arranged inside the sealing cover 4, and the positioning mechanism includes a limiting groove 30, a fixing plate 6 and a limiting rod 31, the limiting rod 31 is slidably connected to the sealing cover 4, a limiting groove 30 is arranged on the upper end of the fixing plate 6, and the limiting groove 30 and the limiting rod 31 form a clamping structure; the upper right end of the insulation box 1 is fixedly connected to the fixing plate 6, a positioning seat 5 is fixed to the right end of the sealing cover 4, and the positioning seat 5 is rotatably connected to the upper end of the fixing plate 6, the right end of the limiting rod 31 is designed with an inclined surface, and the limiting rod 31 is embedded in the limiting groove 30 to form a clamping structure, and the limiting rod A second movable rod 33 is fixed to the left end of 31, and a second return spring 32 runs through the left side of the second movable rod 33, and the left and right ends of the second return spring 32 are fixedly connected to the sealing cover 4 and the second movable rod 33 respectively, the left end of the second movable rod 33 extends to the outside of the sealing cover 4, and the outer end of the second movable rod 33 is connected with a handle 34; through the cooperation of the fixing plate 6 and the positioning seat 5, the sealing cover 4 is rotatably connected to the upper end of the right side of the insulation box body 1, and the second return spring 32 arranged inside the sealing cover 4 can push the limit rod 31 to move rightward, and use the limit rod 31 to engage with the limit groove 30 to limit the rotation of the sealing cover 4, so as to avoid obstruction when taking and placing the storage tube 10, and when the sealing cover 4 needs to be closed, the handle 34 can be pulled to drive the second movable rod 33 and the limit rod 31 to move synchronously, thereby making the limit rod 31 and the limit groove 30 break away from the restriction of contact with the rotation of the sealing cover 4.

[0047] A placement mechanism is provided inside the heat preservation box 1, and the placement mechanism includes a first positioning plate 7, a second positioning plate 9 and a fixed tube 8. The first positioning plate 7 and the second positioning plate 9 are both disc-shaped, and the upper and lower ends of the fixed tube 8 are respectively fixedly connected to the first positioning plate 7 and the second positioning plate 9. A preservation tube 10 is passed through the upper end of the first positioning plate 7, and a threaded screw 13 is passed through the middle of the first positioning plate 7 and the second positioning plate 9; the upper end of the inner wall of the heat preservation box 1 is circular in structure, and the outer walls of the first positioning plate 7 and the second positioning plate 9 are connected with an anti-low temperature sealing ring 11, and the first positioning plate 7 and the second positioning plate 9 are both slidably connected to the inner wall of the heat preservation box 1, and a positioning groove 12 is provided on the upper end surface of the second positioning plate 9, and the positioning groove 12 is snap-connected with the bottom end of the preservation tube 10; the inner wall of the heat preservation box 1 is rotatably connected to the threaded screw 13, and the threaded screw 13 is rotatably connected to the inner wall of the heat preservation box 1 ... The upper ends of the rods 13 pass through the first positioning plate 7 and the second positioning plate 9 respectively, and the threaded screw 13 is threadedly connected to the first positioning plate 7 and the second positioning plate 9 respectively; the positioning grooves 12 opened at the upper ends of the first positioning plate 7, the second positioning plate 9 and the second positioning plate 9 can facilitate the support of the preservation tube 10, and the first positioning plate 7 and the second positioning plate 9 are both connected to the anti-low temperature sealing ring 11 on the outside, and the first positioning plate 7 and the second positioning plate 9 can be used to seal the inner wall of the insulation box body 1 when the placement mechanism is raised and lowered, thereby avoiding liquid nitrogen leakage when taking and placing the preservation tube 10, and at the same time, the threaded screw 13 is connected to the first positioning plate 7 and the second positioning plate 9, and the placement mechanism is driven to rise and fall when the threaded screw 13 rotates, thereby raising the height of the preservation tube 10, breaking away from the contact with liquid nitrogen, and avoiding the risk of frostbite.

[0048] A positioning ring 14 is fixed to the outside of the fixed tube 8, and an auxiliary positioning frame 15 is fixed to the outside of the positioning ring 14, and a first clamping block 16 is fixed to the inner wall of the outer side of the auxiliary positioning frame 15, and a second clamping block 17 is slidably connected to the inner wall of the inner side of the auxiliary positioning frame 15, and the second clamping block 17 and the first clamping block 16 are designed in an arc shape on the opposite sides, and the first clamping block 16 and the second clamping block 17 are consistent with the outer wall of the preservation tube 10, and a first movable rod 18 is fixed to the inner end of the second clamping block 17, and the inner end of the first movable rod 18 passes through the inside of the fixed tube 8, the first movable rod 18 passes through the first return spring 19, and the inner and outer sides of the first return spring 19 are respectively fixedly connected to the inner wall of the auxiliary positioning frame 15 and the first movable rod 18; a fixing rod 20 is passed through the bottom end of the threaded screw 13, and a limiting block 21 is fixed to the upper end of the fixing rod 20, and the bottom end of the fixing rod 20 is fixedly connected to the inner wall of the insulation box body 1, and the fixing rod 20 and the limiting block 21 are fixedly connected. The blocks 21 are all rotatably connected to the threaded screw 13, the upper end of the limit block 21 is conical in design, and the outer wall of the upper end of the limit block 21 contacts the inner end of the first movable rod 18; the positioning ring 14 is fixed by the fixed tube 8, and the positioning ring 14 is used to locate the positions of the first clamping block 16 and the second clamping block 17. When the fixed tube 8 moves downward, the fixed rod 20 and the limit block 21 extend into the fixed tube 8, and push the first movable rod 18 and the second clamping block 17 to move toward the first clamping block 16 through the limit block 21. The first clamping block 16 cooperates with the second clamping block 17 to complete the clamping and fixing of the preservation tube 10, thereby improving the stability of the preservation tube 10 and the placement of the eggs inside, and when the fixed tube 8, the first positioning plate 7 and the second positioning plate 9 move upward, the first movable rod 18 is separated from the contact with the limit block 21, thereby releasing the clamping of the preservation tube 10, improving the convenience of taking and placing, and no separate control is required.

[0049] A transmission mechanism is provided at the bottom end of the heat preservation box body 1, and the transmission mechanism includes a transmission wire rope 24, a fixing rod 20 and a limit block 21. The transmission wire rope 24 is arranged inside the positioning tube 3, and the upper end of the transmission wire rope 24 is connected to a fixing seat 22, and the fixing seat 22 is fixedly connected to the outer wall of the sealing cover 4, the bottom end of the fixing rod 20 is fixed to the inner wall of the heat preservation box body 1, and the upper end of the fixing rod 20 is fixed to the limit block 21; the upper end of the positioning tube 3 is rotatably connected to a first roller 23, and the first roller The left end of the wheel 23 contacts the transmission wire rope 24, the upper end of the transmission wire rope 24 is bolted to the fixing seat 22, and the fixing seat 22 is rotatably connected to the outer wall of the sealing cover 4; a transmission groove 35 is opened on the inner wall of the lower end of the heat preservation box body 1, and the bottom end of the threaded screw 13 penetrates into the transmission groove 35, and the bottom end of the threaded screw 13 is fixedly connected to the first bevel gear 28, the bottom end of the heat preservation box body 1 is rotatably connected to the transmission shaft 26, and the middle part of the transmission shaft 26 is fixed with a second bevel gear 29, and The second bevel gear 29 is meshed and connected with the first bevel gear 28; torsion springs 27 are passed through both ends of the transmission shaft 26, and both ends of the torsion spring 27 are fixedly connected to the transmission shaft 26 and the inner wall of the insulation box body 1 respectively, and both ends of the transmission shaft 26 pass through the interior of the positioning tube 3, and retractable rollers 25 are fixedly connected to the bottom end of the transmission wire rope 24; the upper end of the transmission wire rope 24 can be connected to the sealing cover 4 through the fixing seat 22, and when the sealing cover 4 rotates, the transmission wire rope 24 is driven to move upward, and the retractable roller 25 is driven to rotate, and the setting of the first roller 23 can avoid the transmission wire rope 24 from rubbing against the positioning tube 3 when it is active. When the retractable roller 25 rotates, it can drive the transmission shaft 26 and the second bevel gear 29 to rotate synchronously, and the second bevel gear 29 drives the first bevel gear 28 and the threaded screw 13 to rotate synchronously, thereby providing power for the lifting and lowering of the placement mechanism, and lifting the storage tube 10 for easy access.

[0050] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the present invention have been shown and described, it is understood by ordinary technicians in the field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A medical egg collection and long-term storage device, comprising a heat preservation box (1), characterized in that: The lower end of the heat preservation box (1) is symmetrically provided with two groups of supporting legs (2), and the upper ends of the supporting legs (2) are fixed with positioning tubes (3), and the positioning tubes (3) are fixedly connected to the outer wall of the heat preservation box (1), and the upper end of the heat preservation box (1) is clamped with a sealing cover (4); The heat preservation box (1) is provided with a placement mechanism inside, and the placement mechanism comprises a first positioning plate (7), a second positioning plate (9) and a fixing tube (8), the first positioning plate (7) and the second positioning plate (9) are both designed in a disc shape, and the fixing tube (8) is fixedly connected to the first positioning plate (7) and the second positioning plate (9) at the upper and lower ends respectively, the upper end of the first positioning plate (7) is penetrated by a storage tube (10), and the middle parts of the first positioning plate (7) and the second positioning plate (9) are penetrated by a threaded screw (13); A positioning ring (14) is fixed to the outside of the fixed tube (8), and an auxiliary positioning frame (15) is fixed to the outside of the positioning ring (14), and a first clamping block (16) is fixed to the inner wall of the outer side of the auxiliary positioning frame (15), and a second clamping block (17) is slidably connected to the inner wall of the inner side of the auxiliary positioning frame (15), and the second clamping block (17) and the first clamping block (16) are both designed in an arc shape on the opposite side, and the first clamping block (16) and the second clamping block (17) are consistent with the outer wall of the storage tube (10); A first movable rod (18) is fixed to the inner end of the second clamping block (17), and the inner end of the first movable rod (18) penetrates into the interior of the fixed tube (8), the first movable rod (18) penetrates the first return spring (19), and the inner and outer sides of the first return spring (19) are respectively fixedly connected to the inner wall of the auxiliary positioning frame (15) and the first movable rod (18); A transmission mechanism is provided at the bottom end of the heat preservation box (1), and the transmission mechanism comprises a transmission steel wire rope (24), a fixing rod (20) and a limit block (21); the transmission steel wire rope (24) is arranged inside the positioning tube (3), and the upper end of the transmission steel wire rope (24) is connected to a fixing seat (22), and the fixing seat (22) is fixedly connected to the outer wall of the sealing cover (4); the bottom end of the fixing rod (20) is fixed to the inner wall of the heat preservation box (1), and the upper end of the fixing rod (20) is fixed to the limit block (21); A fixing rod (20) passes through the bottom end of the threaded screw rod (13), and the outer wall of the upper end of the limit block (21) contacts the inner side end of the first movable rod (18); A positioning mechanism is provided inside the sealing cover (4), and the positioning mechanism comprises a limiting groove (30), a fixing plate (6) and a limiting rod (31); the limiting rod (31) is slidably connected to the sealing cover (4); the limiting groove (30) is provided at the upper end of the fixing plate (6), and the limiting groove (30) and the limiting rod (31) form a snap-fit ​​structure; A transmission groove (35) is formed on the inner wall of the lower end of the heat preservation box (1), and the bottom end of the threaded screw (13) penetrates into the transmission groove (35), and the bottom end of the threaded screw (13) is fixedly connected to a first bevel gear (28), the bottom end of the heat preservation box (1) is rotatably connected to a transmission shaft (26), a second bevel gear (29) is fixed to the middle of the transmission shaft (26), and the second bevel gear (29) is meshingly connected to the first bevel gear (28); Torsion springs (27) are passed through both ends of the transmission shaft (26), and both ends of the torsion spring (27) are respectively fixedly connected to the transmission shaft (26) and the inner wall of the heat preservation box (1), and both ends of the transmission shaft (26) pass through the interior of the positioning tube (3), and retractable rollers (25) are fixedly connected to both ends of the transmission shaft (26), and the retractable rollers (25) are fixedly connected to the bottom end of the transmission wire rope (24); The upper right end of the heat preservation box body (1) is fixedly connected to the fixing plate (6); a positioning seat (5) is fixedly connected to the right end of the sealing cover (4), and the positioning seat (5) is rotatably connected to the upper end of the fixing plate (6); the right end of the limit rod (31) is designed as an inclined surface, and the limit rod (31) is embedded in the limit groove (30) to form a snap-fit ​​structure; a second movable rod (33) is fixedly connected to the left end of the limit rod (31), and a second return spring (32) runs through the left side of the second movable rod (33); the left and right ends of the second return spring (32) are respectively fixedly connected to the sealing cover (4) and the second movable rod (33); the left end of the second movable rod (33) extends to the outside of the sealing cover (4), and the outer end of the second movable rod (33) is connected to a handle (34).

2. The medical egg collection and long-term storage device according to claim 1, characterized in that: The upper end of the inner wall of the heat preservation box (1) is designed to be circular in structure; the outer walls of the first positioning plate (7) and the second positioning plate (9) are connected to anti-low temperature sealing rings (11); the first positioning plate (7) and the second positioning plate (9) are both slidably connected to the inner wall of the heat preservation box (1); the upper end surface of the second positioning plate (9) is provided with a positioning groove (12), and the positioning groove (12) is snap-fitted and connected to the bottom end of the storage tube (10).

3. The medical egg collection and long-term storage device according to claim 2, characterized in that: The inner wall of the heat preservation box (1) is rotatably connected to the threaded screw (13), and the upper end of the threaded screw (13) passes through the first positioning plate (7) and the second positioning plate (9), respectively, and the threaded screw (13) is threadedly connected to the first positioning plate (7) and the second positioning plate (9), respectively.

4. The medical egg collection and long-term storage device according to claim 3, characterized in that: The upper end of the fixing rod (20) is fixed with a limit block (21), the lower end of the fixing rod (20) is fixedly connected to the inner wall of the heat preservation box (1), and both the fixing rod (20) and the limit block (21) are rotatably connected to the threaded screw (13), and the upper end of the limit block (21) is designed to be conical.

5. The medical egg collection and long-term storage device according to claim 1, characterized in that: The upper end of the interior of the positioning tube (3) is rotatably connected to a first roller (23), and the left end of the first roller (23) contacts a transmission wire rope (24). The upper end of the transmission wire rope (24) is bolted to a fixing seat (22), and the fixing seat (22) is rotatably connected to the outer wall of the sealing cover (4).

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