A phage sample liquid nitrogen storage with cannula type basket

Abstract

The utility model discloses a bacteriophage sample liquid nitrogen storage with sleeve type basket belongs to liquid nitrogen storage technical field. The basket includes the liquid nitrogen storage jar of being equipped with the sample bottle and liquid nitrogen, the end cap of sealing the sample bottle, the sleeve of being sleeved in the liquid nitrogen storage jar outside, the handle of being fixed to the sleeve top, the lifting mechanism of sliding along the sleeve expansion and contraction groove and the clamping mechanism of being symmetrically arranged in the sleeve movable groove and being linked with the lifting mechanism. The lifting mechanism includes the slide of taking the tooth groove, the thread rod, the handle and the spring of being sleeved in the thread rod outside, and the clamping mechanism includes the carousel of taking the tooth, the movable arm, the clamping rod and the auxiliary rod, and each rotation axis constitutes parallelogram, and the clamping rod is equipped with the bayonet of adapting with the end cap. The utility model discloses through the linkage of lifting mechanism and clamping mechanism realizes the automatic clamping and unlocking of end cap, solves the poor sealing stability of existing liquid nitrogen storage jar, the problem of insufficient sample protection and complicated operation, is applicable to the liquid nitrogen storage and transportation of bacteriophage sample.

Description

Technical Field

[0001] This invention belongs to the field of liquid nitrogen storage technology, specifically relating to a sleeve-type basket for liquid nitrogen storage of bacteriophage samples. Background Technology

[0002] In the storage and transportation of bacteriophage samples, liquid nitrogen storage equipment must meet core requirements such as safe sample sealing, ease of operation, and leak prevention. One publicly disclosed liquid nitrogen storage tank (authorization announcement number: CN220669150U) includes a cover and a tank body. The cover is rotatably fitted onto the top of the tank body. Symmetrical handles are provided on both sides of the tank body, located in the middle of the side of the tank body. A handle is located on the top of the cover. The tank body also includes an inner tank, an outer tank, and an observation tube. The observation tube penetrates the side wall of the outer tank and its lower end connects to the inner tank, allowing the liquid nitrogen level to be determined.

[0003] However, existing liquid nitrogen storage tanks have significant shortcomings in practical applications: they require handling by gripping handles during transport, lack proper securing during handling, and are easily damaged without any external protection. Due to the extremely low temperature of liquid nitrogen, leaks can easily cause frostbite to operators who accidentally touch the tank. Therefore, developing a liquid nitrogen storage device suitable for phage sample storage, featuring a stable seal, sample protection, and convenient operation, has become an urgent problem to be solved in this field. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a sleeve-type basket for liquid nitrogen storage of bacteriophage samples, aiming to solve the problems of poor sealing stability, insufficient sample protection, and cumbersome operation of existing liquid nitrogen storage tanks.

[0005] This invention is implemented as follows: a sleeve-type basket for storing bacteriophage samples in liquid nitrogen includes a liquid nitrogen storage tank containing a sample bottle and liquid nitrogen, and a cap that seals the sample bottle inside the liquid nitrogen storage tank. It also includes: The sleeve is fitted over the liquid nitrogen storage tank from top to bottom, and its top has a telescopic groove and a movable groove that runs through both sides of the telescopic groove; A handle, fixed to the top of the sleeve, is used to lift the liquid nitrogen storage tank; The lifting mechanism can slide vertically along the telescopic groove; The clamping mechanism is symmetrically arranged in two movable slots, which can clamp the end cap in conjunction with the lifting mechanism when it is lifted.

[0006] Preferably, the lifting mechanism includes a slide bar that slides in conjunction with a telescopic groove. The slide bar has a toothed groove on its side that engages with the clamping mechanisms on both sides. A vertically arranged threaded rod is fixed at the center of the top surface of the slide bar.

[0007] Preferably, the lifting mechanism further includes a handle, a stepped hole is provided in the middle of the handle, and guide protrusions are provided vertically on both sides of the stepped hole. The top side of the threaded rod is provided with a guide groove that slides with the guide protrusions along its axial direction. The upper end of the stepped hole extends through the stepped hole and is threaded with a nut.

[0008] Preferably, the handle has a groove for accommodating the handle.

[0009] Preferably, the groove has an upper spring groove that coincides with the axial direction of the threaded rod, and the threaded rod is fitted with a spring, one end of which abuts against the nut and the other end of which abuts against the upper spring groove.

[0010] Preferably, the clamping mechanism includes a turntable, which is hinged to a movable groove via a first pivot at its center. The turntable has a circumferential surface near the center of the sleeve with teeth that mesh with the toothed groove. The turntable has a movable arm on the other circumferential surface at its bottom. The movable arm is hinged to a clamping rod for holding the end cap via a second pivot. An auxiliary rod is hinged to the middle of the clamping rod via a third pivot. The end of the auxiliary rod away from the clamping rod is hinged to the movable groove via a fourth pivot.

[0011] Preferably, the end cap is a disc-shaped part that gradually expands in diameter from the top and bottom to the middle, and the clamping rod has a slot on the side facing the center of the sleeve that is compatible with the end cap.

[0012] Preferably, the first, second, third, and fourth rotating axes are located at the four vertices of the parallelogram.

[0013] Compared with related technologies, the sleeve-type basket for liquid nitrogen storage of bacteriophage samples provided by this utility model has the following beneficial effects: 1. This utility model, through the linkage structure of the lifting mechanism and the clamping mechanism, when the equipment is lifted, the lifting mechanism lifts up and drives the clamping mechanism to automatically clamp the end cap, thereby achieving a stable fixation between the end cap and the liquid nitrogen storage tank. This effectively avoids the loosening of the end cap and leakage of liquid nitrogen caused by equipment shaking or tipping during transportation, and significantly improves the safety of storage and transportation.

[0014] 2. This utility model addresses the storage needs of bacteriophage samples by using a sealing head to stably seal the sample bottle inside a liquid nitrogen storage tank. Combined with a clamping mechanism to firmly hold the sealing head, it can effectively prevent the sealing head of the sample bottle from loosening and protect the integrity of the sample to the greatest extent.

[0015] 3. This utility model integrates the handling function with the end cap clamping function. When the operator lifts the equipment by the handle, the clamping mechanism automatically clamps the end cap. When the equipment is released, the lifting mechanism resets under the action of the spring, and the clamping mechanism releases the clamp. No additional operation to fix the end cap is required, which simplifies the process and reduces the difficulty of operation.

[0016] 4. The clamping mechanism of this utility model adopts a parallelogram transmission structure, combined with a bayonet design that is compatible with the end cap, to ensure smooth and precise clamping action and uniform clamping force; the spring setting enables the lifting mechanism and clamping mechanism to automatically reset, further optimizing the user experience, and the overall structure combines practicality and stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a sleeve-type basket and liquid nitrogen storage tank for storing bacteriophage samples using liquid nitrogen, as proposed in this utility model. Figure 2 This is a schematic cross-sectional view of a sleeve-type basket and liquid nitrogen storage tank for storing bacteriophage samples using liquid nitrogen, as proposed in this utility model. Figure 3 This is a schematic diagram of the liquid nitrogen storage tank proposed in this utility model; Figure 4 This is a front view schematic diagram of the liquid nitrogen storage tank proposed in this utility model; Figure 5 This is a half-sectional schematic diagram of the sleeve proposed in this utility model; Figure 6 This is a disassembly diagram of the lifting mechanism proposed in this utility model; Figure 7 This is a schematic diagram of the clamping mechanism proposed in this utility model.

[0018] In the diagram: 1. Liquid nitrogen storage tank; 2. End cap; 3. Sleeve; 31. Telescopic groove; 32. Movable groove; 4. Handle; 41. Insert groove; 42. Upper spring groove; 5. Lifting mechanism; 51. Sliding bar; 52. Gear groove; 53. Threaded rod; 54. Guide groove; 55. Handle; 56. Nut; 57. Spring; 58. Stepped hole; 6. Clamping mechanism; 61. Turntable; 62. First rotating shaft; 63. Clamping tooth; 64. Movable arm; 65. Second rotating shaft; 66. Clamping rod; 67. Third rotating shaft; 68. Auxiliary rod; 69. Fourth rotating shaft; 610. Bayonet. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to specific embodiments, so that those skilled in the art can understand it.

[0020] Please see Figures 1-7A sleeve-type basket for storing bacteriophage samples in liquid nitrogen includes a liquid nitrogen storage tank 1 containing sample vials and liquid nitrogen, a cap 2 sealing the sample vials within the liquid nitrogen storage tank 1, a sleeve 3, a handle 4, a lifting mechanism 5, and a clamping mechanism 6. The sleeve 3 is fitted over the liquid nitrogen storage tank 1 from top to bottom, and its top has a telescopic groove 31 and movable grooves 32 extending through both sides of the telescopic groove 31. The handle 4 is fixed to the top of the sleeve 3 for lifting the liquid nitrogen storage tank 1. The lifting mechanism 5 can slide vertically along the telescopic groove 31. The clamping mechanism 6 is symmetrically arranged within the two movable grooves 32, and can clamp the cap 2 in conjunction with the lifting mechanism 5 when it is lifted.

[0021] Furthermore, the lifting mechanism 5 includes a slide bar 51, which slides in cooperation with the telescopic groove 31. The slide bar 51 has a toothed groove 52 on its side that is in transmission cooperation with the clamping mechanisms 6 on both sides. A vertically arranged threaded rod 53 is fixed at the center of the top surface of the slide bar 51.

[0022] Furthermore, the lifting mechanism 5 also includes a handle 55, a stepped hole 58 is provided in the middle of the handle 55, and guide protrusions are provided vertically on both sides of the stepped hole 58. The top side of the threaded rod 53 is provided with a guide groove 54 that slides with the guide protrusions along its axial direction. The upper end of the stepped hole 58 extends through the stepped hole 58 and is threadedly connected to a nut 56.

[0023] Furthermore, the handle 4 has a groove 41 that can accommodate the handle 55. When the handle 55 is lifted, the handle 55 can fit into the groove 41, thus forming a complete body with the handle 4, which makes it convenient to carry. The surface of the complete body formed by the handle 55 and the handle 4 has no obvious unevenness, thereby increasing the comfort when carrying.

[0024] Furthermore, the groove 41 is provided with an upper spring groove 42 that coincides with the axial direction of the threaded rod 53. The threaded rod 53 is fitted with a spring 57. One end of the spring 57 abuts against the nut 56 and the other end abuts against the upper spring groove 42. With the help of the elastic force of the spring 57, the lifting mechanism 5 can be automatically reset, which enhances the convenience of operation, and at the same time, the clamping mechanism 6 can be automatically unlocked.

[0025] Furthermore, the clamping mechanism 6 includes a turntable 61, which is hinged to the movable groove 32 via a first pivot 62 at its center. The turntable 61 has a circumferential surface near the center of the sleeve 3 with a locking tooth 63 that meshes with the toothed groove 52. The other circumferential surface at the bottom of the turntable 61 has a movable arm 64. The movable arm 64 is hinged to a clamping rod 66 for clamping the end cap 2 via a second pivot 65. An auxiliary rod 68 is hinged to the middle of the clamping rod 66 via a third pivot 67. The end of the auxiliary rod 68 away from the clamping rod 66 is hinged to the movable groove 32 via a fourth pivot 69.

[0026] Furthermore, the end cap 2 is a disc-shaped object that gradually expands in diameter from the top and bottom ends toward the center. The clamping rod 66 has a slot 610 on the side facing the center of the sleeve 3 that is compatible with the end cap 2, which can improve the fit between the clamping rod 66 and the end cap 2, enhance the clamping stability, and prevent the end cap 2 from loosening.

[0027] Furthermore, the first rotating shaft 62, the second rotating shaft 65, the third rotating shaft 67, and the fourth rotating shaft 69 are located at the four vertices of the parallelogram, so that the clamping mechanism 6 maintains a stable motion trajectory during transmission and ensures accurate clamping action.

[0028] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A sleeve-type basket for storing bacteriophage samples in liquid nitrogen, comprising a liquid nitrogen storage tank (1) containing a sample bottle and liquid nitrogen, and a cap (2) for sealing the sample bottle within the liquid nitrogen storage tank (1), characterized in that, Also includes: The sleeve (3) is fitted from top to bottom outside the liquid nitrogen storage tank (1), and its top is provided with a telescopic groove (31) and a movable groove (32) that runs through both sides of the telescopic groove (31). The handle (4) is fixed to the top of the sleeve (3) and is used to lift the liquid nitrogen storage tank (1). The lifting mechanism (5) can slide vertically along the telescopic groove (31); The clamping mechanism (6) is symmetrically arranged in the two movable slots (32) and can clamp the end cap (2) in conjunction with the lifting mechanism (5) when it is lifted.

2. The sleeve-type basket for liquid nitrogen storage of bacteriophage samples according to claim 1, characterized in that, The lifting mechanism (5) includes a slide bar (51), which slides in cooperation with the telescopic groove (31). The slide bar (51) has a toothed groove (52) on its side that is in transmission cooperation with the clamping mechanisms (6) on both sides. A vertically arranged threaded rod (53) is fixed at the center of the top surface of the slide bar (51).

3. The sleeve-type basket for liquid nitrogen storage of bacteriophage samples according to claim 2, characterized in that, The lifting mechanism (5) also includes a handle (55), a stepped hole (58) is provided in the middle of the handle (55), and guide protrusions are provided vertically on both sides of the stepped hole (58). The top side of the threaded rod (53) is provided with a guide groove (54) that slides with the guide protrusions along its axial direction. The upper end of the stepped hole (58) passes through the stepped hole (58) and is threaded with a nut (56).

4. The sleeve-type basket for liquid nitrogen storage of bacteriophage samples according to claim 3, characterized in that, The handle (4) has a groove (41) that can accommodate the handle (55).

5. The sleeve-type basket for liquid nitrogen storage of bacteriophage samples according to claim 4, characterized in that, The groove (41) is provided with an upper spring groove (42) that coincides with the axial direction of the threaded rod (53). The threaded rod (53) is fitted with a spring (57). One end of the spring (57) abuts against the nut (56), and the other end abuts against the upper spring groove (42).

6. The sleeve-type basket for liquid nitrogen storage of bacteriophage samples according to claim 2, characterized in that, The clamping mechanism (6) includes a turntable (61), which is hinged to the movable groove (32) via a first rotating shaft (62) at the center. The turntable (61) has a tooth (63) on one circumferential surface near the center of the sleeve (3) that meshes with the toothed groove (52). The turntable (61) has a movable arm (64) on the other circumferential surface at the bottom. The movable arm (64) is hinged to a clamping rod (66) for clamping the end cap (2) via a second rotating shaft (65). An auxiliary rod (68) is hinged to the middle of the clamping rod (66) via a third rotating shaft (67). The end of the auxiliary rod (68) away from the clamping rod (66) is hinged to the movable groove (32) via a fourth rotating shaft (69).

7. The sleeve-type basket for liquid nitrogen storage of bacteriophage samples according to claim 6, characterized in that, The end cap (2) is a disc-shaped object that gradually expands in diameter from the top and bottom ends toward the middle. The clamping rod (66) has a slot (610) on the side facing the center of the sleeve (3) that is compatible with the end cap (2).

8. The sleeve-type basket for liquid nitrogen storage of bacteriophage samples according to claim 6, characterized in that, The first pivot (62), the second pivot (65), the third pivot (67), and the fourth pivot (69) are located at the four vertices of the parallelogram, respectively.

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