Liquid nitrogen tank lifting basket

Abstract

The liquid nitrogen tank lifting basket comprises a lifting basket frame of a rectangular columnar structure, the front face of the lifting basket frame is open, a plurality of partition plates are arranged in the lifting basket frame from top to bottom to form a plurality of storage cavities, cryopreservation boxes are arranged in the storage cavities in an inserted mode, one side of each storage cavity is provided with a limiting buckle, and the limiting buckles can open or block the storage cavities in an opening and closing mode. A limiting sliding groove is formed in the front end face of the cryopreservation box, a handle is slidably installed in the limiting sliding groove, the periphery of the handle is matched with an inner cavity of the limiting buckle, positioning insertion holes are formed in the two sides of an inner cavity of the limiting sliding groove, and positioning screw rods inserted into the positioning insertion holes are arranged in the handle. The limiting buckles are arranged on one sides of the storage cavities, the handles are installed in the limiting sliding grooves in the front end faces of the cryopreservation boxes in a sliding mode, the peripheries of the handles are matched with the inner cavities of the limiting buckles, and the positioning screws connected with the positioning insertion holes in an inserted mode are arranged in the handles, so that the cryopreservation boxes on all layers can be independently locked, taking and placing are convenient, and the cryopreservation effect is good. And the problem that the cryopreservation box accidentally slides off can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cell freezing, in particular to a liquid nitrogen tank basket. Background Art

[0002] Liquid nitrogen is an inert, colorless, odorless, non-corrosive, non-flammable liquid nitrogen gas with extremely low temperature. Under normal pressure, the temperature of liquid nitrogen is -196°C. Liquid nitrogen tanks are mainly used for static storage of liquid nitrogen indoors and have low-temperature freezing function. In cell freezing and resuscitation work, liquid nitrogen tanks are often used to achieve long-term preservation of biological tissue specimens. When in use, the cryopreservation tubes containing cell specimens are generally placed in a cryopreservation box, and then the cryopreservation box is placed in a liquid nitrogen tank basket, and then the liquid nitrogen tank basket is placed in the liquid nitrogen tank for long-term low-temperature storage.

[0003] However, most of the existing cryoboxes of the liquid nitrogen tank basket are locked as a whole by latch rods. When taking out and placing the cryotubes, the locks of the cryoboxes at all layers are released, which may cause the cryoboxes to accidentally slip.

[0004] Therefore, we need to design a liquid nitrogen tank basket to solve the above problems. Utility Model Content

[0005] Most of the existing liquid nitrogen tank baskets use a latch rod to lock the cryoboxes as a whole. When taking out and placing cryotubes, the locks of all layers of cryoboxes are released, which may cause the cryoboxes to accidentally slide off. The purpose of the utility model is to solve the above problem by providing a liquid nitrogen tank basket.

[0006] According to one aspect of the utility model, a liquid nitrogen tank basket is provided, including a basket frame in a rectangular columnar structure, the front of the basket frame is open, and the inside of the basket frame is provided with a plurality of partitions from top to bottom to form a plurality of storage cavities, a freezing box is inserted in the storage cavity, and a limiting buckle is provided on one side of each storage cavity, and the limiting buckle can be opened and closed to open or block the storage cavity, and a limiting slide groove is provided on the front end surface of the freezing box, and a handle is slidably installed in the limiting slide groove, and the outer periphery of the handle matches the inner cavity of the limiting buckle, and positioning holes are provided on both sides of the inner cavity of the limiting slide groove, and a positioning screw plugged into the positioning hole is provided in the handle. The utility model can independently lock each layer of freezing boxes by providing a limiting buckle on one side of each storage cavity, slidingly installing a handle in the limiting slide groove on the front end surface of each freezing box, and the outer periphery of the handle matches the inner cavity of the limiting buckle, and providing a positioning screw plugged into the positioning hole in the handle, which is not only convenient for taking and placing, but also can effectively solve the problem of accidental slipping of the freezing box.

[0007] In some embodiments, the limit buckle includes a buckle body and a limit seat, the limit seat is arranged at the outer front end of the basket frame, and the buckle body can rotate relative to the limit seat to open or block the storage cavity. Thus, the buckle body can rotate to open or block the storage cavity, making it convenient to take out and put in the frozen storage box.

[0008] In some embodiments, the limiting seat includes two fixing seats and a limiting block, the two fixing seats are arranged at an interval at the outer front end of the basket frame, a pin hole is opened on the inner side of the fixing seat, the two ends of the buckle body are bent to form a pin column, and the pin column is correspondingly inserted into the pin hole, and a limiting block is provided between the two fixing seats, and the limiting block is used to limit the pin column in the pin hole. Thus, the buckle body can be rotated by the rotational cooperation between the pin column and the pin hole, so that the buckle body can be rotated to open or block the storage cavity.

[0009] In some embodiments, a threaded cavity is provided in the handle, and the positioning screw is threadedly connected to the threaded cavity, thereby facilitating the positioning of the handle.

[0010] In some embodiments, one end of the positioning screw is fixedly connected to an adjusting knob, and the adjusting knob is used to adjust the rotation of the positioning screw. Thus, by turning the adjusting knob, the adjusting knob drives the positioning screw to rotate, and the position of the positioning screw in the handle can be adjusted, so that the positioning screw can be inserted into the positioning socket to position the handle, thereby achieving the effect of fixing the buckle body and preventing the buckle body from loosening.

[0011] In some embodiments, the upper and lower end surfaces of the basket support, the partition and the lower end surface of the cryopreservation box are provided with corresponding multiple through holes. Thus, when the liquid nitrogen tank basket is placed in the liquid nitrogen tank, the liquid nitrogen in the liquid nitrogen tank can quickly flow into the cryopreservation box, so that the interior of the cryopreservation box is quickly filled with liquid nitrogen; when the liquid nitrogen tank basket is taken out of the liquid nitrogen tank, the liquid nitrogen inside the cryopreservation box can quickly flow out and be emptied.

[0012] In some embodiments, the freezing box is provided with a plurality of freezing grids for accommodating freezing tubes, so that the freezing grids in the freezing box are convenient for fixing the freezing tubes and can fully utilize the space to achieve high-density storage.

[0013] In some embodiments, a lifting rod is welded on the back of the basket frame, and a handle is provided at the upper end of the lifting rod, and the handle is used to hang at the entrance of the liquid nitrogen tank. Thus, the handle can be snapped into the slot at the entrance of the liquid nitrogen tank to increase the placement stability of the liquid nitrogen tank basket and prevent it from shifting.

[0014] In some embodiments, a fixing ring is provided at the end of the handle, and the fixing ring is used to fix a numbered label. Thus, the label carries the number of the liquid nitrogen tank basket, which is convenient for staff to quickly find.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The utility model provides a limit buckle on one side of each storage cavity, slides a handle in a limit slide groove on the front end surface of each freezing box, and the outer periphery of the handle matches the inner cavity of the limit buckle, and a positioning screw connected to the positioning socket is provided in the handle, so that each layer of freezing boxes can be locked independently, which is not only convenient for taking and placing, but also can effectively solve the problem of accidental slipping of the freezing boxes.

[0017] 2. The utility model provides a plurality of corresponding through holes on the upper and lower end surfaces of the basket frame, the partition and the lower end surface of the freezing box. When the liquid nitrogen tank basket is placed in the liquid nitrogen tank, the liquid nitrogen in the liquid nitrogen tank can quickly flow into the freezing box, so that the inside of the freezing box is quickly filled with liquid nitrogen; when the liquid nitrogen tank basket is taken out of the liquid nitrogen tank, the liquid nitrogen inside the freezing box can quickly flow out and be emptied. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a structural schematic diagram of the basket frame of the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the freezing box of the utility model;

[0021] Figure 4 For the utility model Figure 3 A schematic diagram of the enlarged structure in the middle.

[0022] In the figure: 1. basket frame; 2. partition; 3. storage cavity; 4. freezing box; 5. limit buckle; 501. buckle body; 502. fixing seat; 503. limit block; 6. limit slide groove; 7. handle; 8. positioning socket; 9. positioning screw; 11. threaded cavity; 12. adjustment knob; 13. through hole; 14. freezing grid; 15. lifting rod; 16. handle; 17. fixing ring. DETAILED DESCRIPTION

[0023] The utility model will be further described in detail below in conjunction with the accompanying drawings.

[0024] The following describes the utility model and its implementation methods, which are not restrictive and the actual implementation methods are not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

[0025] refer to Figure 1-4The utility model provides a liquid nitrogen tank basket, including a basket frame 1 with a rectangular columnar structure. The front of the basket frame 1 is open. A plurality of partitions 2 are arranged inside the basket frame 1 from top to bottom to form a plurality of storage cavities 3. A freezing box 4 is inserted in the storage cavity 3. A limiting buckle 5 is arranged on one side of each storage cavity 3. The limiting buckle 5 can be opened and closed to open or block the storage cavity 3. A limiting slide groove 6 is arranged on the front end surface of the freezing box 4. A handle 7 is slidably installed in the limiting slide groove 6. The periphery of the handle 7 matches the inner cavity of the limiting buckle 5. Positioning holes 8 are arranged on both sides of the inner cavity of the limiting slide groove 6. A positioning screw 9 plugged into the positioning hole 8 is arranged in the handle 7. The utility model provides a limit buckle 5 on one side of each storage cavity 3, and a handle 7 is slidably installed in the limit slide groove 6 on the front end surface of the freezing box 4. The outer periphery of the handle 7 matches the inner cavity of the limit buckle 5, and a positioning screw 9 connected to the positioning hole 8 is provided in the handle 7. Each layer of the freezing box 4 can be independently locked, which is not only convenient for taking and placing, but also can effectively solve the problem of the freezing box 4 slipping accidentally.

[0026] The limit buckle 5 includes a buckle body 501 and a limit seat. The limit seat is arranged at the outer front end of the basket frame 1. The buckle body 501 can rotate relative to the limit seat to open or block the storage chamber 3. In this way, the buckle body 501 can be rotated to open or block the storage chamber 3, which is convenient for taking and placing the frozen storage box 4. The limit seat includes two fixed seats 502 and a limit block 503. The two fixed seats 502 are arranged at the outer front end of the basket frame 1 at intervals from top to bottom. The inner side of the fixed seat 502 is provided with a pin hole. The two ends of the buckle body 501 are bent to form a pin column, and the pin column is correspondingly inserted in the pin hole. A limit block 503 is provided between the two fixed seats 502. The limit block 503 is used to limit the pin column in the pin hole. In this way, the buckle body 501 can be rotated through the rotational cooperation between the pin column and the pin hole, so that the buckle body 501 can be rotated to open or block the storage chamber 3.

[0027] A threaded cavity 11 is provided in the handle 7, and the positioning screw 9 is threadedly connected to the threaded cavity 11. This arrangement facilitates the positioning of the handle 7. An adjusting knob 12 is fixedly connected to one end of the positioning screw 9, and the adjusting knob 12 is used to adjust the rotation of the positioning screw 9. In this arrangement, by turning the adjusting knob 12, the adjusting knob 12 drives the positioning screw 9 to rotate, and the position of the positioning screw 9 in the handle 7 can be adjusted, so that the positioning screw 9 can be inserted into the positioning socket 8, and the handle 7 is positioned, thereby achieving the effect of fixing the buckle body 501 and preventing the buckle body 501 from loosening.

[0028] The upper and lower end surfaces of the basket stand 1, the partition 2 and the lower end surface of the cryobox 4 are all provided with corresponding multiple through holes 13. With such a configuration, when the liquid nitrogen tank basket is placed in the liquid nitrogen tank, the liquid nitrogen in the liquid nitrogen tank can quickly flow into the cryobox 4, so that the inside of the cryobox 4 is quickly filled with liquid nitrogen; when the liquid nitrogen tank basket is taken out of the liquid nitrogen tank, the liquid nitrogen inside the cryobox 4 can quickly flow out and be emptied. The cryobox 4 is provided with multiple cryobox grids 14 for holding cryotubes. With such a configuration, the cryobox grids 14 in the cryobox 4 are convenient for fixing the cryotubes and can make full use of the space to achieve high-density storage.

[0029] A lifting rod 15 is welded to the back of the basket frame 1, and a handle 16 is provided at the upper end of the lifting rod 15, and the handle 16 is used to hang at the entrance of the liquid nitrogen tank. In this way, the handle 16 can be snapped into the slot at the entrance of the liquid nitrogen tank to increase the placement stability of the liquid nitrogen tank basket and prevent it from shifting. A fixing ring 17 is provided at the end of the handle 16, and the fixing ring 17 is used to fix a numbered label. In this way, the label carries the number of the liquid nitrogen tank basket, which is convenient for the staff to quickly find it.

[0030] The working principle of the utility model is as follows: first, the cryopreservation tube containing the cell specimen is placed in the cryopreservation grid 14 in the cryopreservation box 4, the buckle body 501 is rotated to open the storage cavity 3, the cryopreservation box 4 is inserted into the storage cavity 3, and the buckle body 501 is rotated again to seal the cryopreservation box 4 in the storage cavity 3. Then, through the sliding cooperation between the handle 7 on the front end surface of the cryopreservation box 4 and the limiting slide groove 6, the handle 7 is slid so that the handle 7 and the inner cavity of the buckle body 501 are mutually engaged, and the adjustment knob 12 is rotated so that the positioning screw 9 and the positioning socket 8 are mutually engaged, so as to position the handle 7, and then fix the buckle body 501 to realize the independent locking of each layer of the cryopreservation box 4. Finally, the liquid nitrogen tank basket is placed in the liquid nitrogen tank for long-term low-temperature storage.

Claims

1. A liquid nitrogen tank basket, characterized in that: The invention comprises a basket frame (1) having a rectangular columnar structure, wherein the front of the basket frame (1) is open, and a plurality of partitions (2) are arranged inside the basket frame (1) from top to bottom to form a plurality of storage chambers (3), wherein a freezing box (4) is inserted into the storage chamber (3), and a limiting buckle (5) is arranged on one side of each storage chamber (3), wherein the limiting buckle (5) can be opened and closed to open or block the storage chamber (3), and a limiting slide groove (6) is arranged on the front end surface of the freezing box (4), and a handle (7) is slidably installed in the limiting slide groove (6), and the outer periphery of the handle (7) matches the inner cavity of the limiting buckle (5), and positioning holes (8) are arranged on both sides of the inner cavity of the limiting slide groove (6), and a positioning screw (9) is arranged in the handle (7) to be plugged into the positioning hole (8).

2. The liquid nitrogen tank basket according to claim 1, characterized in that: The limit buckle (5) comprises a buckle body (501) and a limit seat, wherein the limit seat is arranged at the front end of the outer side of the basket frame (1), and the buckle body (501) can rotate relative to the limit seat to open or close the storage cavity (3).

3. The liquid nitrogen tank basket according to claim 2, characterized in that: The limiting seat comprises two fixing seats (502) and a limiting block (503); the two fixing seats (502) are arranged at an upper and lower interval at the outer front end of the basket frame (1); a pin hole is opened on the inner side of the fixing seat (502); the two ends of the buckle body (501) are bent to form a pin column; the pin column is correspondingly inserted into the pin hole; a limiting block (503) is arranged between the two fixing seats (502); the limiting block (503) is used to limit the pin column in the pin hole.

4. The liquid nitrogen tank basket according to claim 1, characterized in that: A threaded cavity (11) is provided in the handle (7), and the positioning screw (9) is threadedly connected to the threaded cavity (11).

5. The liquid nitrogen tank basket according to claim 1, characterized in that: One end of the positioning screw (9) is fixedly connected to an adjusting knob (12), and the adjusting knob (12) is used to adjust the rotation of the positioning screw (9).

6. The liquid nitrogen tank basket according to claim 1, characterized in that: The upper and lower end surfaces of the basket frame (1), the partition (2) and the lower end surface of the freezing box (4) are all provided with a plurality of corresponding through holes (13).

7. The liquid nitrogen tank basket according to claim 1, characterized in that: The freezing box (4) is provided with a plurality of freezing grids (14) for containing freezing tubes.

8. The liquid nitrogen tank basket according to claim 1, characterized in that: A lifting rod (15) is welded on the back of the basket frame (1), and a handle (16) is provided at the upper end of the lifting rod (15). The handle (16) is used to be hung at the entrance of the liquid nitrogen tank.

9. The liquid nitrogen tank basket according to claim 8, characterized in that: A fixing ring (17) is provided at the end of the handle (16), and the fixing ring (17) is used to fix a numbered label.

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