Portable liquid nitrogen transfer box

Abstract

The utility model discloses a portable liquid nitrogen transfer box, which particularly relates to the technical field of liquid nitrogen transportation and comprises a box body, a hinge is fixedly connected to one side of the top of the box body, a box cover is rotatably connected to the box body through the hinge, a handle is fixedly connected to the top of the box cover, and a fixing buckle is fixedly connected to one side of the box cover and one side of the box body. Protective covers are movably installed on the two sides of the inner wall of the box body, sliding mechanisms and storage barrels for moving are arranged at the bottoms of the protective covers, a pull handle is fixedly connected to the top of each storage barrel, and a containing groove is formed in the bottom of the inner wall of the box body. The problems that liquid nitrogen in the box overflows, the transportation effect is poor, if a transfer box uses an adhesive tape, the adhesive tape is affected by the extremely low temperature of the liquid nitrogen for a long time, the adhesive tape possibly becomes brittle, the adhesive tape needs to be replaced regularly, the transportation cost is increased, and the transportation effect is common due to the fact that the adhesive tape is directly transported through the transfer box are solved.

Description

Technical Field

[0001] This utility model relates to the field of liquid nitrogen transportation, specifically to a portable liquid nitrogen transfer box. Background Technology

[0002] Nitrogen is a colorless, odorless, inert, non-corrosive, and non-flammable gas. Liquid nitrogen is nitrogen gas that has formed a liquid state at extremely low temperatures. Due to its chemical inertness, liquid nitrogen is often used for rapid freezing and transportation of food, or for research in low-temperature physics. In medicine, liquid nitrogen can be used as a refrigerant to rapidly freeze biological tissues and prevent them from being damaged.

[0003] However, existing liquid nitrogen is generally transported directly through sealed transport containers. If the transport container does not use sealing strips, gaps can easily exist between the container lid and the container body, causing liquid nitrogen to leak out and resulting in poor transport efficiency. If the transport container uses sealing strips, the strips may become brittle due to the extremely low temperature of liquid nitrogen over a long period of time, requiring regular replacement and increasing transport costs. Therefore, transporting liquid nitrogen directly through transport containers generally results in poor transport efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a portable liquid nitrogen transport box to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable liquid nitrogen transport box, comprising:

[0006] The box body has a hinge fixedly connected to one side of the top of the box body. The box body is rotatably connected to a lid via the hinge. A handle is fixedly connected to the top of the lid. A fixing buckle is fixedly connected to one side of the lid and the box body. Protective covers are movably installed on both sides of the inner wall of the box body. A sliding mechanism for moving is provided at the bottom of the protective cover.

[0007] A storage bucket, the top of which is fixedly connected to a handle, and the bottom of the inner wall of the box is provided with a placement groove, the bottom of which is movably inserted into the inner wall of the placement groove.

[0008] Preferably, the sliding mechanism includes a threaded rod and a motor. A movable groove is formed inside the bottom of the housing. One end of the motor is fixedly inserted into one side of the inner wall of the movable groove. The two ends of the threaded rod are respectively rotatably connected to the two sides of the inner wall of the movable groove. One end of the threaded rod is fixedly connected to the rotating shaft end of the motor. A threaded block is threadedly connected to the surface of the threaded rod. A fixing block is fixedly connected to the top of the threaded block. The top of the fixing block is fixedly connected to the bottom of the protective cover. A strip groove is formed at the bottom of the inner wall of the housing. The side of the fixing block is slidably connected to the inner wall of the strip groove. The strip groove communicates with the movable groove. The bottom of the protective cover is slidably connected to the bottom of the inner wall of the housing.

[0009] Preferably, a storage compartment is provided inside the bottom of the box, a fixing groove is provided at the top of the placement groove, an inlet groove is provided at the top of the storage compartment, the injection pipe of the storage bucket is slidably connected to the inner wall of the inlet groove, the side of the handle is slidably connected to the inner wall of the fixing groove, and a vent is provided at the bottom of the inner wall of the box, the vent being in communication with the storage compartment.

[0010] Preferably, a miniature electric push rod is fixedly inserted into the bottom of the box, a baffle is movably inserted into one side of the inner wall of the strip groove, the telescopic end of the miniature electric push rod is fixedly connected to one side of the baffle, and the baffle is located above the threaded rod.

[0011] Preferably, a fixing block is fixedly connected to the side of one side of the protective cover, and a snap-fit ​​groove is opened on the side of the other side of the protective cover, and the side of the fixing block is movably inserted into the inner wall of the snap-fit ​​groove.

[0012] Preferably, the fixing block is U-shaped.

[0013] Preferably, the lid and body of the box are arranged in a cross shape.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. With the design of protective covers on both sides, the liquid nitrogen is double-sealed by the threaded rod and motor, and the storage tank can be fixed. The box body can also achieve a triple seal for the liquid nitrogen, which has a better sealing effect, greatly reduces the loss rate of liquid nitrogen, and can achieve a good sealing effect without the need for rubber strips.

[0016] 2. By incorporating a storage compartment and vents, and placing the storage bucket at the bottom of the container, the items inside can be frozen through the storage compartment and vents, further enhancing the freezing effect of the liquid nitrogen in the storage bucket. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the closed cross-section of the protective cover structure of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 5 This is an inverted cross-sectional view of the storage bucket structure of this utility model;

[0023] Figure 6 This utility model Figure 5 Enlarged schematic diagram of the structure at point B.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Handle; 2. Lid; 3. Box body; 4. Fixing buckle; 5. Fixing insert; 6. Storage bucket; 7. Protective cover; 8. Pull handle; 9. Threaded rod; 10. Storage compartment; 11. Vent hole; 12. Baffle; 13. Mini electric push rod; 14. Motor; 15. Fixing block; 16. Threaded block; 17. Fixing groove; 18. Placement groove. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figures 1-6 The portable liquid nitrogen transport box shown includes:

[0028] The box body 3 has a hinge fixedly connected to one side of the top of the box body 3. The box body 3 is rotatably connected to the box cover 2 via the hinge. The top of the box cover 2 is fixedly connected to the handle 1. The box cover 2 and one side of the box body 3 are fixedly connected to the fixing buckle 4. The inner walls of the box body 3 are movably installed with protective covers 7 on both sides. The bottom of the protective cover 7 is provided with a sliding mechanism for movement, which facilitates the transportation of liquid nitrogen.

[0029] Storage bucket 6 has a handle 8 fixedly connected to its top. The bottom of the inner wall of the box 3 has a placement groove 18. The bottom of the storage bucket 6 is movably inserted into the inner wall of the placement groove 18, which can play a certain role in fixing the storage bucket 6.

[0030] Furthermore, the sliding mechanism includes a threaded rod 9 and a motor 14. A movable groove is provided inside the bottom of the housing 3. One end of the motor 14 is fixedly inserted into one side of the inner wall of the movable groove. The two ends of the threaded rod 9 are respectively rotatably connected to the two sides of the inner wall of the movable groove. One end of the threaded rod 9 is fixedly connected to the rotating shaft end of the motor 14. A threaded block 16 is threadedly connected to the surface of the threaded rod 9. A fixing block 15 is fixedly connected to the top of the threaded block 16. The top of the fixing block 15 is fixedly connected to the bottom of the protective cover 7. A strip groove is provided at the bottom of the inner wall of the housing 3. The side of the fixing block 15 is slidably connected to the inner wall of the strip groove. The strip groove is connected to the movable groove. The bottom of the protective cover 7 is slidably connected to the bottom of the inner wall of the housing 3. This provides a double sealing effect for the liquid nitrogen and can also fix the storage tank 6.

[0031] Furthermore, a storage compartment 10 is provided inside the bottom of the box 3, a fixing groove 17 is provided on the top of the placement groove 18, an inlet groove is provided on the top of the storage compartment 10, the injection pipe of the storage bucket 6 is slidably connected to the inner wall of the inlet groove, the side of the pull handle 8 is slidably connected to the inner wall of the fixing groove 17, and a vent hole 11 is provided at the bottom of the inner wall of the box 3. The vent hole 11 is connected to the storage compartment 10, so that freezing operations can be performed inside the box 3.

[0032] Furthermore, a miniature electric push rod 13 is fixedly inserted into the bottom of the housing 3, and a baffle 12 is movably inserted into one side of the inner wall of the strip groove. The telescopic end of the miniature electric push rod 13 is fixedly connected to one side of the baffle 12. The baffle 12 is located above the threaded rod 9, which can effectively prevent liquid nitrogen from entering the moving groove and thus affecting the operation of the threaded rod 9 and the motor 14.

[0033] Furthermore, a fixing block 5 is fixedly connected to the side of one protective cover 7, and a snap-fit ​​groove is opened on the side of the other protective cover 7. The side of the fixing block 5 is movably inserted into the inner wall of the snap-fit ​​groove, which facilitates the fixing operation of the protective covers 7 on both sides.

[0034] Furthermore, the fixing block 5 is U-shaped, which not only increases the snap-fit ​​effect but also further enhances the sealing effect.

[0035] Furthermore, the lid 2 and the body 3 are arranged in a cross shape, which can reduce the possibility of liquid nitrogen tipping over during transportation, thereby increasing the stability of liquid nitrogen during transportation.

[0036] Through the above technical solution:

[0037] In use, first rotate to open the sealing cap at the top of the storage tank 6, then pour the liquid nitrogen into the storage tank 6 through the injection tube. After the liquid nitrogen is poured in, close the sealing cap at the top of the storage tank 6, and then use the pull handle 8 to put the storage tank 6 into the placement slot 18 at the top of the inner wall of the box 3. After the storage tank 6 is put in place, start the motor 14. The motor 14 drives the threaded block 16 and the fixing block 15 to move through the threaded rod 9. Since the thread grooves of the two sets of threaded blocks 16 are opposite, the two sets of threaded blocks 16 will drive the protective covers 7 on both sides to move inward. Thus, the fixing insert 5 on the side of one protective cover 7 will engage with the snap-fit ​​slot on the side of the other protective cover 7. At this time, the two protective covers 7 will fix the storage tank 6, which will provide a double seal for the liquid nitrogen and fix the storage tank 6. Then, the box cover 2 will be rotated and fixed through the hinge and the fixing buckle 4. Then, the box 3 can be moved through the handle 1. At this time, the liquid nitrogen can provide a triple seal.

[0038] When liquid nitrogen from storage tank 6 is needed for freezing operations, to reduce liquid nitrogen loss, the threaded cap at the top of storage tank 6 can be removed first. Then, through the inlet slot at the top of storage chamber 10, the box 3 can be placed on top of storage tank 6. At this time, the top of storage tank 6 is inserted into the placement slot 18, and the pull handle 8 at the top of storage tank 6 is inserted into the fixing slot 17. After storage tank 6 is fixed, storage tank 6 and box 3 are rotated 180 degrees simultaneously, so that the injection pipe of storage tank 6 is vertically downward, and liquid nitrogen flows into storage chamber 10 at the bottom of box 3 through the injection pipe of storage tank 6. This process is repeated. The above steps seal and fix the storage tank 6 with the protective covers 7 on both sides. Then, the micro electric push rod 13 is activated. The micro electric push rod 13 drives the baffle 12 to move inward, thereby sealing and inserting the strip groove at the bottom of the inner wall of the box 3. When the baffle 12 is sealing and inserting, the end of the baffle 12 near the protective cover 7 slides and fits against the side of the fixing block 15, which can effectively prevent liquid nitrogen from entering the moving groove and affecting the operation of the threaded rod 9 and the motor 14. After the liquid nitrogen is injected, the vaporized liquid nitrogen will be discharged outward through the vent 11, thereby freezing the inside of the box 3.

[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A portable liquid nitrogen transport box, characterized in that, include: Box (3), a hinge is fixedly connected to one side of the top of the box (3), the box (3) is rotatably connected to the lid (2) through the hinge, a handle (1) is fixedly connected to the top of the lid (2), a fixing buckle (4) is fixedly connected to one side of the lid (2) and the box (3), and protective covers (7) are movably installed on both sides of the inner wall of the box (3), and a sliding mechanism for moving is provided at the bottom of the protective cover (7); Storage bucket (6), the top of which is fixedly connected to a handle (8), and the bottom of the inner wall of the box (3) is provided with a placement groove (18), the bottom end of which is movably inserted into the inner wall of the placement groove (18).

2. The portable liquid nitrogen transport box according to claim 1, characterized in that: The sliding mechanism includes a threaded rod (9) and a motor (14). A moving groove is provided inside the bottom of the housing (3). One end of the motor (14) is fixedly inserted into one side of the inner wall of the moving groove. The two ends of the threaded rod (9) are respectively rotatably connected to the two sides of the inner wall of the moving groove. One end of the threaded rod (9) is fixedly connected to the rotating shaft end of the motor (14). A threaded block (16) is threadedly connected to the surface of the threaded rod (9). A fixing block (15) is fixedly connected to the top of the threaded block (16). The top of the fixing block (15) is fixedly connected to the bottom of the protective cover (7). A strip groove is provided at the bottom of the inner wall of the housing (3). The side of the fixing block (15) is slidably connected to the inner wall of the strip groove. The strip groove is connected to the moving groove. The bottom of the protective cover (7) is slidably connected to the bottom of the inner wall of the housing (3).

3. The portable liquid nitrogen transport box according to claim 1, characterized in that: The bottom of the box (3) has a storage compartment (10) inside, the top of the placement slot (18) has a fixing slot (17), the top of the storage compartment (10) has an inlet slot, the injection pipe of the storage bucket (6) is slidably connected to the inner wall of the inlet slot, the side of the handle (8) is slidably connected to the inner wall of the fixing slot (17), and the bottom of the inner wall of the box (3) has a vent hole (11) that is connected to the storage compartment (10).

4. The portable liquid nitrogen transport box according to claim 2, characterized in that: A miniature electric push rod (13) is fixedly inserted into the bottom of the box (3), and a baffle (12) is movably inserted into one side of the inner wall of the strip groove. The telescopic end of the miniature electric push rod (13) is fixedly connected to one side of the baffle (12), and the baffle (12) is located above the threaded rod (9).

5. The portable liquid nitrogen transport box according to claim 2, characterized in that: A fixing block (5) is fixedly connected to the side of one side of the protective cover (7), and a snap-fit ​​groove is opened on the side of the other side of the protective cover (7), and the side of the fixing block (5) is movably inserted into the inner wall of the snap-fit ​​groove.

6. The portable liquid nitrogen transport box according to claim 5, characterized in that: The fixing block (5) is U-shaped.

7. The portable liquid nitrogen transport box according to claim 1, characterized in that: The lid (2) and body (3) are arranged in a cross shape.

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