Extraction equipment for liquefied nitrogen

Abstract

The utility model belongs to the technical field of liquefied nitrogen extraction, and particularly relates to liquefied nitrogen extraction equipment which comprises a storage tank, a tank cover is connected to the top of the storage tank in a threaded mode, a pair of fixing blocks is fixedly connected to the outer circle wall of the storage tank, and the fixing blocks are symmetrically arranged relative to the storage tank. And the side walls, away from each other, of the pair of fixing blocks are rotationally connected with rotating blocks through first rotating shafts, the rotating blocks are fixedly connected with an oblique carrying belt, and the storage tank is provided with an extraction assembly, so that the problems that traditional liquefied nitrogen extraction equipment is inconvenient to carry, large in size, generally used for cooling large equipment, low in efficiency and the like are solved. For the requirement of a cell freezing experiment, a traditional liquefied nitrogen extraction device is inconvenient to move when cells are cooled, so that a more convenient liquefied nitrogen extraction device is needed.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquefied nitrogen extraction, in particular to a liquefied nitrogen extraction device. Background Art

[0002] The main purpose of freezing cells with liquid nitrogen is to preserve cell samples for a long time and to be able to revive and continue to culture when needed. Through the freezing method, cell samples can be preserved for a long time in a low-temperature environment, extending the service life of the cells. This is very useful for research that requires long-term cell experiments. Some experiments require the use of cells at a specific stage, such as a certain stage of the cell cycle, cells in a specific differentiation state, etc. By freezing cells, cells can be revived when needed to meet experimental needs.

[0003] In the prior art, traditional liquefied nitrogen extraction equipment is not easy to carry and is large in size. It is generally used for cooling large equipment. For the needs of cell freezing experiments, traditional liquefied nitrogen extraction equipment is not convenient for cooling cells and needs to be moved frequently. Therefore, a more convenient liquefied nitrogen extraction equipment is needed.

[0004] To this end, the utility model provides a liquefied nitrogen extraction device. Utility Model Content

[0005] In order to make up for the shortcomings of the existing technology and solve the problem that traditional liquefied nitrogen extraction equipment is not easy to carry, is large in size, and is generally used for cooling large equipment, for the needs of cell freezing experiments, traditional liquefied nitrogen extraction equipment is not convenient for cell cooling and needs to be moved frequently, so a more convenient liquefied nitrogen extraction equipment is needed.

[0006] The technical solution adopted by the utility model to solve the technical problem is as follows: a liquefied nitrogen extraction device described in the utility model comprises a storage tank, a tank cover is threadedly connected to the top of the storage tank, a pair of fixed blocks are fixedly connected to the outer circular wall of the storage tank, and the pair of fixed blocks are symmetrically arranged with respect to the storage tank, one side wall of the pair of fixed blocks away from each other is rotatably connected to a rotating block through a first rotating shaft, a cross-body strap is fixedly connected to the pair of rotating blocks, and an extraction component is provided on the storage tank.

[0007] Preferably, the extraction assembly includes a pipeline unit and a first connecting ring, the first connecting ring is fixedly connected to the outer circular wall of the storage tank, and the first connecting ring is communicated with the storage tank, a second connecting ring is threadedly connected to the first connecting ring, a self-priming pump is provided at one end of the second connecting ring, a third connecting ring is connected to the suction end of the self-priming pump, and an output end of the self-priming pump is connected to one end of the second connecting ring.

[0008] Preferably, the pipeline unit comprises a fourth connecting ring, the fourth connecting ring is threadedly connected to the third connecting ring, one end of the fourth connecting ring is fixedly connected to the first connecting pipe, and the other end of the first connecting pipe is fixedly connected to the suction nozzle.

[0009] Preferably, a closing cover is threadedly connected to the first connecting ring.

[0010] Preferably, a concave block is fixedly connected to the storage tank, and first sliding grooves are provided on opposite side walls of the concave block. A pair of limiting rods are fixedly connected to the bottoms of the first sliding grooves via springs, and opposite ends of the pair of limiting rods are triangular.

[0011] Preferably, a placement box is fixedly connected to the tank cover.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The liquefied nitrogen extraction device described in the utility model is provided with a crossbody strap on the storage tank, so that the staff can carry it on their back through the crossbody strap, so that the staff can free their hands to perform a series of operations when extracting liquefied nitrogen, so as to solve the problem that traditional liquefied nitrogen extraction equipment is not convenient to carry and is large in size. It is generally used for cooling large equipment. For the needs of cell freezing experiments, traditional liquefied nitrogen extraction equipment is not convenient for cooling cells and needs to be moved frequently. Therefore, a more convenient liquefied nitrogen extraction device is needed.

[0014] 2. The liquefied nitrogen extraction equipment described in the utility model can disassemble the first connecting pipe through a pair of limiting rods, and store it in the concave block for buckling. The opposite ends of the pair of limiting rods are triangular, which can facilitate the staff to store and take the first connecting pipe. The first connecting pipe can be directly squeezed into the concave block for storage, and it is also convenient to take it out. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a concave block diagram in the utility model;

[0018] Figure 3 It is an exploded view of the first connecting rod in the utility model;

[0019] Figure 4 It is a schematic diagram of the closing cover in the utility model;

[0020] Figure 5It is a cross-sectional view of a concave block in the utility model;

[0021] In the figure: 1. storage tank; 2. tank cover; 3. fixed block; 4. rotating block; 5. crossbody strap; 6. first connecting ring; 7. second connecting ring; 8. self-priming pump; 9. third connecting ring; 10. fourth connecting ring; 11. first connecting pipe; 12. suction nozzle; 13. closing cover; 14. concave block; 15. first sliding groove; 16. limiting rod; 17. placement box. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figures 1 to 5 As shown, a liquefied nitrogen extraction device described in an embodiment of the utility model comprises a storage tank 1, a tank cover 2 is threadedly connected to the top of the storage tank 1, a pair of fixed blocks 3 are fixedly connected to the outer circular wall of the storage tank 1, and the pair of fixed blocks 3 are symmetrically arranged about the storage tank 1, and the side walls of the pair of fixed blocks 3 that are away from each other are rotatably connected to the rotating blocks 4 through the first rotating shaft, and the pair of rotating blocks 4 are fixedly connected to the cross-body straps 5, and the storage tank 1 is provided with an extraction component. When working, the cross-body straps 5 are provided on the storage tank 1, so that the staff can carry it on their back through the cross-body straps 5, so that the staff can free their hands to perform a series of operations when extracting liquefied nitrogen, so as to solve the problem that traditional liquefied nitrogen extraction equipment is not easy to carry, has a large size, and is generally used for cooling large equipment. For the needs of cell freezing experiments, traditional liquefied nitrogen extraction equipment is not convenient for cooling cells and needs to move the liquefied nitrogen extraction equipment frequently, so a more convenient liquefied nitrogen extraction equipment is needed.

[0024] The extraction assembly includes a pipeline unit and a first connecting ring 6, the first connecting ring 6 is fixedly connected to the outer circular wall of the storage tank 1, and the first connecting ring 6 is communicated with the storage tank 1, the first connecting ring 6 is threadedly connected to the second connecting ring 7, one end of the second connecting ring 7 is provided with a self-priming pump 8, the suction end of the self-priming pump 8 is connected to the third connecting ring 9, and the output end of the self-priming pump 8 is connected to one end of the second connecting ring 7. When working, the self-priming pump 8 is provided to achieve the effect of extraction and injection, so that liquefied nitrogen can be extracted and injected through the pipeline unit, and the second connecting ring 7 and the third connecting ring 9 are threadedly connected, so that the staff can disassemble the self-priming pump 8 for storage.

[0025] The pipeline unit includes a fourth connecting ring 10, which is threadedly connected to the third connecting ring 9. A first connecting pipe 11 is fixedly connected to one end of the fourth connecting ring 10, and a suction nozzle 12 is fixedly connected to the other end of the first connecting pipe 11. During operation, the fourth connecting ring 10 is threadedly connected to the third connecting ring 9, so that the third connecting ring 9 can be disassembled, so that the staff can clean the first connecting pipe 11 to avoid the first connecting pipe 11 being unable to be disassembled and cleaned due to its strong integrity.

[0026] The first connecting ring 6 is threadedly connected with a closing cover 13. When in operation, the second connecting ring 7 can be threadedly connected with the first connecting ring 6 and can be disassembled through the closing cover 13. Therefore, after the extraction of liquefied nitrogen and the cooling injection are completed, the first connecting ring 6 can be closed through the closing cover 13 to prevent external bacteria from entering the storage tank 1.

[0027] A concave block 14 is fixedly connected to the storage tank 1, and first sliding grooves 15 are provided on the opposite side walls of the concave block 14. A pair of limiting rods 16 are fixedly connected to the bottom of the first sliding grooves 15 through springs, and the opposite ends of the pair of limiting rods 16 are triangular. During operation, the first connecting tube 11 can be disassembled through the pair of limiting rods 16 and stored in the concave block for buckling. The pair of limiting rods 16 with a triangular end relative to each other can facilitate the staff to store and take out the first connecting tube 11. The first connecting tube 11 can be directly squeezed into the concave block 14 for storage, and it is also convenient to take out.

[0028] The tank cover 2 is fixedly connected with a placement box 17. During operation, the self-priming pump 8 can be disassembled through the placement box 17 fixedly connected with the tank cover 2 and stored in the placement box 17, so that the storage tank 1 and the self-priming pump 8 can be stored together, so that when needed, the extraction equipment can be assembled more quickly, which can save a lot of time.

[0029] Working principle: A crossbody strap 5 is provided on the storage tank 1, so that the staff can carry it on their back through the crossbody strap 5, so that the staff can free their hands to perform a series of operations when extracting liquefied nitrogen, so as to solve the problem that traditional liquefied nitrogen extraction equipment is not convenient to carry and is large in size. It is generally used for cooling large equipment. For the needs of cell freezing experiments, traditional liquefied nitrogen extraction equipment is not convenient for cell cooling and needs to be moved frequently. Therefore, a more convenient liquefied nitrogen extraction equipment is needed. The self-priming pump 8 is provided to achieve the effect of extraction and injection, so that liquefied nitrogen can be extracted and injected through the pipeline unit, and the second connecting ring 7 and the third connecting ring 9 are threadedly connected, so that the staff can disassemble the self-priming pump 8 for storage, and the fourth connecting ring 10 is threadedly connected to the third connecting ring 9, so that the third connecting ring 9 can be disassembled, so that the staff can clean the first connecting pipe 11 to avoid strong integrity. The first connecting tube 11 cannot be disassembled and cleaned. Through the provided closing cover 13, the second connecting ring 7 can be threadedly connected with the first connecting ring 6 to be disassembled, so that after the extraction of liquefied nitrogen is completed and the cooling injection is completed, the first connecting ring 6 can be closed through the closing cover 13 to prevent external bacteria from entering the storage tank 1. Through the provided pair of limiting rods 16, the first connecting tube 11 can be disassembled and stored in the concave block for buckling. The opposite end of the pair of limiting rods 16 is triangular, which can facilitate the staff to store and take the first connecting tube 11. The first connecting tube 11 can be directly squeezed into the concave block 14 for storage, and it is also convenient to take it out. The placement box 17 is fixedly connected to the tank cover 2, and the self-priming pump 8 can be disassembled and stored in the placement box 17, so that the storage tank 1 and the self-priming pump 8 can be stored together, so that the extraction equipment can be assembled more quickly when needed, which can save a lot of time.

[0030] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A liquefied nitrogen extraction device, characterized in that: The invention comprises a storage tank (1), wherein a tank cover (2) is threadedly connected to the top of the storage tank (1), a pair of fixed blocks (3) are fixedly connected to the outer circular wall of the storage tank (1), and the pair of fixed blocks (3) are symmetrically arranged with respect to the storage tank (1), and a pair of side walls of the fixed blocks (3) which are away from each other are rotatably connected to a rotating block (4) via a first rotating shaft, and a cross-body strap (5) is fixedly connected to the pair of rotating blocks (4), and an extraction component is provided on the storage tank (1).

2. The liquefied nitrogen extraction equipment according to claim 1, characterized in that: The extraction assembly comprises a pipeline unit and a first connecting ring (6), wherein the first connecting ring (6) is fixedly connected to the outer circular wall of the storage tank (1), and the first connecting ring (6) is connected to the storage tank (1), a second connecting ring (7) is threadedly connected to the first connecting ring (6), a self-priming pump (8) is provided at one end of the second connecting ring (7), a third connecting ring (9) is connected to the suction end of the self-priming pump (8), and an output end of the self-priming pump (8) is connected to one end of the second connecting ring (7).

3. A liquefied nitrogen extraction device according to claim 2, characterized in that: The pipeline unit comprises a fourth connecting ring (10), the fourth connecting ring (10) is threadedly connected to the third connecting ring (9), one end of the fourth connecting ring (10) is fixedly connected to a first connecting pipe (11), and the other end of the first connecting pipe (11) is fixedly connected to a suction nozzle (12).

4. A liquefied nitrogen extraction device according to claim 3, characterized in that: A closing cover (13) is threadedly connected to the first connecting ring (6).

5. The liquefied nitrogen extraction equipment according to claim 4, characterized in that: A concave block (14) is fixedly connected to the storage tank (1), and first sliding grooves (15) are provided on opposite side walls of the concave block (14). A pair of limiting rods (16) are fixedly connected to the bottoms of the first sliding grooves (15) via springs, and opposite ends of the pair of limiting rods (16) are triangular.

6. The liquefied nitrogen extraction equipment according to claim 5, characterized in that: A placement box (17) is fixedly connected to the tank cover (2).

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