CN215324504U

CN215324504U - Liquid nitrogen equipment and pail subassembly thereof

Info

Publication number: CN215324504U
Application number: CN202121226952.7U
Authority: CN
Inventors: 钟嘉伟; 李佳浩; 林祥华; 黄小桃; 卫思婷; 林裕锋; 王婉佳; 王一萍
Original assignee: Zhengzhou University; Guangdong Shunde Industrial Design Institute
Current assignee: Zhengzhou University; Guangdong Shunde Industrial Design Institute
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-28
Anticipated expiration: 2031-06-02

Abstract

The utility model relates to liquid nitrogen equipment and a bucket lifting assembly thereof, wherein the liquid nitrogen equipment comprises a liquid nitrogen tank and the bucket lifting assembly, an accommodating cavity is formed in the liquid nitrogen tank, a tank opening is formed in one side of the accommodating cavity penetrating through the liquid nitrogen tank, the tank opening is communicated with the accommodating cavity, and the accommodating cavity is used for accommodating liquid nitrogen; the barrel lifting assembly comprises a barrel body and a cover plate, wherein an accommodating cavity is formed in the barrel body, the accommodating cavity penetrates through one side of the barrel body to form a taking and placing opening, the accommodating cavity is used for storing the freezing tube, the taking and placing opening is used for taking and placing the freezing tube, a liquid leakage hole is formed in the other side, away from the taking and placing opening, of the barrel body, one side of the liquid leakage hole is communicated with the accommodating cavity, and the other side of the liquid leakage hole is used for being communicated with the accommodating cavity of the liquid nitrogen tank; the cover plate is arranged on the other side of the barrel body far away from the taking and placing opening, and the cover plate can be rotatably covered on the liquid leakage hole around a rotating axis. The staving is placed in holding the intracavity, and the holding chamber can be linked together with holding the chamber. The pail subassembly can be carried out the liquid nitrogen of drawing and freeze the function switch of depositing at any time according to experimental needs, has improved test efficiency.

Description

Liquid nitrogen equipment and pail subassembly thereof

Technical Field

The utility model relates to the technical field of biological experiment equipment, in particular to liquid nitrogen equipment and a lifting bucket assembly thereof.

Background

Nitrogen is a colorless and odorless gas, and accounts for 78.08% of the total atmosphere, and is the main component of air. Liquid nitrogen is a liquid form formed by nitrogen gas at low temperatures. Liquid nitrogen plays an important role in the fields of biology, medicine and the like, and is generally used for cryopreservation, cryotherapy, refrigerants and the like of cells and tissues. When the liquid nitrogen cultured cells need to be extracted from the liquid nitrogen tank, a liquid nitrogen extraction pail needs to be used for extracting liquid nitrogen from the liquid nitrogen tank; when the cells need to be frozen, the freezing barrel is needed to be used for storing the cell freezing tube, and the cell freezing tube is placed into a liquid nitrogen tank. The freezing pail can only deposit the cell freezing pipe, and the liquid nitrogen draws the pail and can only draw the liquid nitrogen, and above-mentioned two kinds of pail functions singleness are not convenient for the experimenter to carry out test operation.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a liquid nitrogen device and a pail assembly thereof that are versatile and convenient.

A bucket lifting assembly comprises a bucket body and a cover plate, wherein an accommodating cavity is formed in the bucket body, the accommodating cavity penetrates through one side of the bucket body to form a taking and placing opening, the accommodating cavity is used for storing a freezing tube, the taking and placing opening is used for taking and placing the freezing tube, a liquid leakage hole is formed in the other side, away from the taking and placing opening, of the bucket body, and is communicated with the accommodating cavity of a liquid nitrogen tank; the cover plate is arranged on one side of the barrel body, where the liquid leakage hole is formed, can move relative to the barrel body and can be covered on the liquid leakage hole.

In one embodiment, the pail assembly further comprises a bottom cover, the accommodating cavity penetrates through the other side of the pail body far away from the access opening to form an outflow opening, the bottom cover is detachably covered on the outflow opening, the liquid leakage hole is formed in the bottom cover, and the cover plate is rotatably arranged on the bottom cover.

In one embodiment, the pail assembly further includes a partition plate disposed in the accommodating chamber, the partition plate having a through hole, the through hole communicating with the accommodating chamber.

In one embodiment, the partition plate is further provided with a fixing hole, the fixing hole and the circulation hole are arranged at intervals, and the fixing hole is used for penetrating through the freezing storage pipe.

In one embodiment, the number of the partition plates is at least two, the direction of the liquid leakage holes towards the taking and placing opening is a first direction, each partition plate is arranged at intervals along the first direction, and the distance between every two adjacent partition plates is larger than or equal to the length of the freezing and storing pipe.

Furthermore, the pail assembly further comprises at least two supporting members, one supporting member is arranged between two adjacent partition plates, and two opposite ends of the one supporting member are connected to the two adjacent partition plates, so that the two adjacent partition plates can be detachably arranged in the accommodating cavity.

In one embodiment, a said diaphragm is movable in a first direction on said support.

In another embodiment, the support member is capable of telescoping in a first direction to enable one said partition to move closer to or away from an adjacent other said partition.

Specifically, the partition board can be rotatably arranged in the accommodating cavity, the central axis of the support piece in the first direction coincides with the rotation axis of the partition board, one end of the support piece is arranged on one side of one partition board, an external thread is formed at the other end of the support piece, a threaded hole is formed in the other adjacent partition board, the circle center of the threaded hole is located on the rotation axis of the partition board, and the external thread on the support piece can be meshed with the threaded hole in the partition board.

In one embodiment, the pail assembly further comprises a top cover, the top cover can be arranged at the taking and placing opening in a turnover manner, a liquid inlet hole is formed in the top cover, the liquid inlet hole is communicated with the containing cavity, and the liquid inlet hole is used for being communicated with the containing cavity of the liquid nitrogen tank.

In one embodiment, the pail assembly further comprises a handle, one end of the handle is connected to the pail body, and the other end of the handle is used for hanging at a tank opening of the liquid nitrogen tank.

A liquid nitrogen device comprises a liquid nitrogen tank and the bucket lifting assembly, wherein an accommodating cavity is formed in the liquid nitrogen tank, a tank opening is formed in one side of the accommodating cavity penetrating through the liquid nitrogen tank, the tank opening is communicated with the accommodating cavity, and the accommodating cavity is used for accommodating liquid nitrogen; the barrel body is placed in the accommodating cavity, and the accommodating cavity can be communicated with the accommodating cavity.

Above-mentioned liquid nitrogen equipment and pail subassembly thereof, when needs are deposited with pail subassembly storage cryopreserving pipe, can rotate the apron and expose the weeping hole, make the weeping hole can be linked together with the chamber that holds of liquid nitrogen container. And then placing the freezing tube in the accommodating cavity through the taking and placing opening. Then the barrel body is placed in an accommodating cavity of a liquid nitrogen tank, and liquid nitrogen can flow into the accommodating cavity from the taking and placing opening and acts on the freezing tube; when taking out the staving from the liquid nitrogen tank, the liquid nitrogen can be by weeping hole outflow holding chamber, guarantees that the tester can not be frostbitten by the liquid nitrogen when taking away the cryopreserving pipe. When other experiments are carried out on liquid nitrogen in the liquid nitrogen tank to be extracted, the cover plate can be rotated to cover the liquid leakage hole, the liquid nitrogen circulation effect is blocked, and after the liquid nitrogen is filled in the accommodating cavity, the barrel body is taken out from the liquid nitrogen tank, so that the liquid nitrogen extraction is realized. After the pail component is taken out of the liquid nitrogen tank, the cover plate can be rotated again to expose the liquid leakage hole, so that liquid nitrogen in the accommodating cavity flows out for testing. The pail subassembly can carry out the function switch at any time according to experimental needs, has improved test efficiency. Even there is the cryopreserving pipe in the pail subassembly and also can draw the liquid nitrogen, improved pail subassembly's practicality and convenience.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of a pail assembly according to an embodiment;

FIG. 2 is a schematic structural diagram of a bottom cover portion in the embodiment of FIG. 1;

fig. 3 is an enlarged view of the elastic member in the embodiment of fig. 1.

The elements in the figure are labeled as follows:

10. a pail assembly; 100. a barrel body; 110. an accommodating cavity; 200. a bottom cover; 210. a weep hole; 300. a partition plate; 310. a flow-through hole; 320. a fixing hole; 400. a support member; 410. an external thread; 500. a top cover; 510. a liquid inlet hole; 520. an elastic member; 600. a handle.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1 and 2, the liquid nitrogen equipment in an embodiment includes a liquid nitrogen tank and a pail assembly 10, wherein an accommodating cavity is formed in the liquid nitrogen tank, a tank opening is formed in the accommodating cavity through one side of the liquid nitrogen tank, the tank opening is communicated with the accommodating cavity, and the accommodating cavity is used for accommodating liquid nitrogen; the bucket lifting assembly 10 comprises a bucket body 100 and a cover plate, wherein an accommodating cavity 110 is formed in the bucket body 100, the accommodating cavity 110 penetrates through one side of the bucket body 100 to form a taking and placing opening, the accommodating cavity 110 is used for storing a frozen pipe, the taking and placing opening is used for taking and placing the frozen pipe, a liquid leakage hole 210 is formed in the other side, away from the taking and placing opening, of the bucket body 100, the liquid leakage hole 210 is communicated with the accommodating cavity 110, and the liquid leakage hole 210 is used for being communicated with an accommodating cavity of a liquid nitrogen tank; the cover plate is disposed on one side of the barrel body 100 where the leakage hole 210 is formed, and the cover plate can move relative to the barrel body 100 and can be covered on the leakage hole 210. The barrel 100 is placed in the accommodating cavity, and the accommodating cavity 110 can be communicated with the accommodating cavity.

When the pail assembly 10 is required to store a frozen tube, the lid plate can be rotated to expose the weep hole 210, allowing the weep hole 210 to communicate with the receiving cavity. The freezing tube is placed in the accommodating cavity 110 through the taking and placing opening. Then, the barrel body 100 is placed in an accommodating cavity of a liquid nitrogen tank, and liquid nitrogen can flow into the accommodating cavity 110 from the taking and placing opening and acts on the freezing tube; when taking out staving 100 from the liquid nitrogen tank in, the liquid nitrogen can be by weeping hole 210 outflow holding chamber 110, guarantees that the tester can not be frostbitten by the liquid nitrogen when taking off the cryopreserving pipe. When other experiments are carried out on liquid nitrogen to be extracted from the liquid nitrogen tank, the cover plate can be rotated to cover the liquid leakage hole 210, the circulation effect of the liquid nitrogen is blocked, and after the accommodating cavity 110 is filled with the liquid nitrogen, the barrel body 100 is taken out from the liquid nitrogen tank, so that the liquid nitrogen extraction is realized. After the pail assembly 10 is removed from the liquid nitrogen can, the cover plate can be rotated to expose the weep hole 210, so that the liquid nitrogen in the accommodating cavity 110 flows out for testing. The pail assembly 10 can be switched in function at any time according to test requirements, and test efficiency is improved. Even there is the cryopreserving pipe in pail subassembly 10 and also can draw the liquid nitrogen, improved pail subassembly 10's practicality and convenience.

In one embodiment, the pail assembly 10 further comprises a bottom cover 200, the receiving cavity 110 penetrates through the pail 100 to form an outlet, the bottom cover 200 is detachably covered on the outlet, the liquid leakage hole 210 is opened on the bottom cover 200, and the cover plate is rotatably arranged on the bottom cover 200. Because bottom cover 200 can be dismantled, when only needing to deposit the cryopreserved pipe, can pull down bottom cover 200, improve the liquid nitrogen flow velocity in holding chamber 110, improve the cryopreserved effect then. Before extracting the liquid nitrogen, the bottom cover 200 can be replaced by a different one, and the liquid nitrogen pouring speed can be controlled. With the apron setting on bottom 200, more convenient operation and later maintenance are changed the apron. The cost of use of the pail assembly 10 is reduced.

Further, the size of one side of the liquid leakage hole 210 communicated with the accommodating cavity 110 is larger than or equal to the size of the other side of the liquid leakage hole 210 communicated with the accommodating cavity. The size of the side of the leakage hole 210 leaking the liquid nitrogen is smaller than or equal to the size of the side communicating with the accommodating cavity 110, and the liquid nitrogen flows from the large size side to the small size side, so that the outflow speed of the liquid nitrogen is increased, and the efficiency of extracting the liquid nitrogen is improved.

Further, at least two liquid leakage holes 210 are formed in the bottom cover 200, each liquid leakage hole 210 is arranged around the rotation axis of the cover plate, and the sizes of the liquid leakage holes 210 are different. Because the size of weeping hole 210 is different, can select different weeping holes 210 with the apron when drawing the liquid nitrogen, and then can adjust the outflow speed of liquid nitrogen as required by the experiment, improved pail subassembly 10's practicality and convenience.

Referring to fig. 1, in one embodiment, the pail assembly 10 further includes a partition 300, the partition 300 is disposed in the accommodating chamber 110, a flow hole 310 is formed on the partition 300, and the flow hole 310 is communicated with the accommodating chamber 110. The partition 300 may divide the space of the accommodating chamber 110, so that the accommodating chamber 110 can store more frozen tubes in layers. And the liquid nitrogen can reach the cryopreservation pipes at different layers through the circulation hole 310, so as to realize cryopreservation. The practicability of the pail assembly 10 is guaranteed, and the efficiency of test cryopreservation is also improved.

In one embodiment, the partition 300 further has a fixing hole 320, the fixing hole 320 is spaced apart from the flow hole 310, and the fixing hole 320 is used for penetrating the freezing tube. Wear to establish in fixed orifices 320 with freezing the pipe, just can fix freezing the pipe of depositing, guarantee to freeze the pipe of depositing and can not float in the liquid nitrogen cylinder and walk, also can guarantee when removing staving 100, freeze the pipe of depositing and can not collide with each other, guaranteed experimental safe and reliable then.

In one embodiment, the number of the partition plates 300 is at least two, the direction of the leakage holes 210 facing the access opening is a first direction, each partition plate 300 is arranged at intervals along the first direction, and the distance between two adjacent partition plates 300 is greater than or equal to the length of the cryopreservation tube. The plurality of partitions 300 can further improve the space utilization of the accommodating cavity 110 to store more freezing pipes. Meanwhile, the distance between every two adjacent partition plates 300 is larger than or equal to the length of the freezing pipes, so that the adjacent two layers of freezing pipes are prevented from colliding, and the safety and the reliability of the bucket lifting assembly 10 are further improved.

Further, the pail assembly 10 further includes at least two supporting members 400, one supporting member 400 is disposed between two adjacent partition plates 300, and two opposite ends of one supporting member 400 are connected to two adjacent partition plates 300, so that the two adjacent partition plates 300 can be detachably disposed in the accommodating cavity 110. Each partition 300 is detachably disposed in the accommodating chamber 110, and the space in the accommodating chamber 110 can be adjusted according to the actual storage requirement. Meanwhile, the support member 400 is disposed between the two partitions 300 to ensure a stable space between the two partitions 300 and a stable structure of the pail assembly 10. And the support 400 can be disassembled, ensuring flexibility in adjusting the space between the two partitions 300. The ease of use of the pail assembly 10 is further enhanced.

In one embodiment, a diaphragm 300 is movable in a first direction on the support 400. In another embodiment, the support 400 is capable of telescoping in a first direction to enable one of the partitions 300 to move closer to or away from an adjacent other partition 300. The spacing distance between two adjacent baffles 300 can be adjusted by the support 400, and the spacing space between the baffles 300 can be adjusted according to actual test requirements during testing, and the support 400 can provide certain structural support and stability.

Referring to fig. 1 and 2, in particular, the partition boards 300 are rotatably disposed in the accommodating cavities 110, a central axis of the supporting member 400 in the first direction coincides with a rotation axis of the partition board 300, one end of the supporting member 400 is disposed on one side of one of the partition boards 300, an external thread 410 is formed on the other end of the supporting member 400, a threaded hole is formed on the other adjacent partition board 300, a circle center of the threaded hole is located on the rotation axis of the partition board 300, and the external thread 410 on the supporting member 400 can be engaged with the threaded hole on the partition board 300. The partition boards 300 can rotate in the accommodating cavity 110, the supporting pieces 400 are connected to the partition boards 300 through threads, when two partition boards 300 are installed and fixed, the partition boards 300 can be rotated in the accommodating cavity 110, so that the supporting pieces 400 on one partition board 300 are rotatably fixed in threaded holes of the other partition board 300, and then the two partition boards 300 are fixed relatively. Threaded connection is convenient and reliable, and the structural stability of the pail assembly 10 is ensured.

Further, the end of the support member 400 forming the external thread 410 can be moved in a first direction and engaged in any position in the threaded hole. The supporting member 400 can adjust the distance between two adjacent partition plates 300 in a threaded engagement manner, and the threaded engagement adjustment is more precise, so that the structural stability of the pail assembly 10 can be ensured.

In another embodiment, one end of the supporting member 400 is detachably disposed on the bottom cover 200, and the other end of the supporting member 400 is detachably disposed on the partition 300. The bottom cover 200 is provided with the support 400, which can provide more stable support for the spacer 300 and other supports 400. Meanwhile, the bottom cover 200 can be detached, so that the bottom cover 200 can be detached firstly, and then the cover plate is detached from the accommodating cavity 110 gradually from the bottom of the barrel body 100, so that the detaching mode of the pail assembly 10 is increased, the pail assembly 10 can be detached more conveniently, and the use convenience of the pail assembly 10 is improved.

In one embodiment, the pail assembly 10 further includes a top cover 500, the top cover 500 can be turned over to cover the access opening, the top cover 500 is formed with a liquid inlet 510, the liquid inlet 510 is communicated with the containing cavity 110, and the liquid inlet 510 is used for being communicated with the containing cavity of the liquid nitrogen container. The top cover 500 is arranged to protect the freezing tube in the accommodating cavity 110 from being damaged by the outside. Meanwhile, if the liquid nitrogen is poured out from the taking and placing opening, the top cover 500 has a certain shielding effect, and splashing of the liquid nitrogen is avoided to frostbite operators. And liquid inlet 510 can guarantee that liquid nitrogen can flow into holding chamber 110, guarantees experimental effect. The safety of the pail assembly 10 is improved while the test efficiency is also ensured.

Specifically, as shown in fig. 1 and 3, an elastic member 520 is disposed at the access opening, the top cover 500 is connected to the elastic member 520, and the elastic member 520 can apply a pushing force to the top cover 500 in a direction away from the access opening. Elastic component 520 can make top cap 500 open automatically, avoids the manual work to open top cap 500, leads to the liquid nitrogen injury operating personnel, has improved pail subassembly 10's security.

In one embodiment, the pail assembly 10 further comprises a handle 600, one end of the handle 600 is connected to the pail body 100, and the other end of the handle 600 is used for hanging at the mouth of a liquid nitrogen tank. The handle 600 facilitates the extraction of the pail assembly 10 from the tank of liquid nitrogen by an operator. The ease of use of the pail assembly 10 is improved.

Specifically, a hook is formed by bending the other end of the handle 600, and the hook is used for being hung at the tank opening of the liquid nitrogen tank. The hook enables the pail assembly 10 to be hung more reliably and stably, and then the safety and the convenience of the pail assembly 10 are improved.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A pail assembly of liquid nitrogen equipment, characterized in that the pail assembly of liquid nitrogen equipment includes:

the freezing storage device comprises a barrel body, wherein an accommodating cavity is formed in the barrel body, the accommodating cavity penetrates through one side of the barrel body to form a taking and placing opening, the accommodating cavity is used for storing a freezing storage pipe, the taking and placing opening is used for taking and placing the freezing storage pipe, a liquid leakage hole is formed in the other side of the barrel body, away from the taking and placing opening, and is communicated with the accommodating cavity of a liquid nitrogen tank; and

the cover plate is arranged on one side of the barrel body, where the liquid leakage hole is formed, can move relative to the barrel body and can be covered on the liquid leakage hole.

2. The pail assembly of claim 1, further comprising a bottom cover, wherein the receiving chamber forms an outlet opening through the other side of the bucket body remote from the access opening, the bottom cover is removably attached to the outlet opening, the weep hole opens into the bottom cover, and the lid plate is rotatably attached to the bottom cover.

3. The pail assembly of liquid nitrogen equipment according to claim 1, further comprising a partition plate disposed in the accommodating chamber, wherein the partition plate is provided with a through hole, and the through hole is communicated with the accommodating chamber.

4. The bucket lifting assembly of liquid nitrogen equipment of claim 3, wherein the partition plate is further provided with fixing holes, the fixing holes are spaced from the circulation holes, and the fixing holes are used for penetrating the freezing storage pipes.

5. The pail assembly of liquid nitrogen equipment according to claim 3, wherein the number of the partition plates is at least two, the direction of the weep hole toward the access opening is a first direction, each partition plate is arranged at intervals along the first direction, and the distance between two adjacent partition plates is greater than or equal to the length of the freezing tube.

6. The pail assembly of liquid nitrogen equipment according to claim 5, further comprising at least two supporting members, wherein one supporting member is disposed between two adjacent partition plates, and opposite ends of one supporting member are connected to the two adjacent partition plates, so that the two adjacent partition plates can be detachably disposed in the accommodating chamber.

7. The pail assembly of liquid nitrogen apparatus of claim 6, wherein one of the partitions is movable in a first direction on the support; or

The supporting piece can be stretched and contracted along a first direction so as to enable one partition board to be close to or far away from another adjacent partition board; or

The baffle can set up with rotating the holding intracavity, the direction of the axis of rotation of baffle is first direction, support piece's one end sets up one on one side of baffle, be formed with the external screw thread on support piece's the other end, adjacent another be formed with the screw hole on the baffle, the centre of a circle of screw hole is located on the axis of rotation of baffle, the external screw thread on the support piece can with screw hole mesh on the baffle.

8. The pail assembly of liquid nitrogen equipment according to any one of claims 1-7, further comprising a top cover, wherein the top cover can be turnably covered at the access opening, the top cover is provided with a liquid inlet hole, the liquid inlet hole is communicated with the accommodating cavity, and the liquid inlet hole is used for being communicated with the accommodating cavity of the liquid nitrogen tank.

9. The pail assembly of liquid nitrogen equipment of any one of claims 1-7, further comprising a handle, wherein one end of the handle is connected to the barrel body, and the other end of the handle is used for hanging at the mouth of the liquid nitrogen tank.

10. A liquid nitrogen apparatus, characterized in that the liquid nitrogen apparatus comprises:

the liquid nitrogen container is internally provided with an accommodating cavity, a container opening is formed in one side of the accommodating cavity penetrating through the liquid nitrogen container, the container opening is communicated with the accommodating cavity, and the accommodating cavity is used for accommodating liquid nitrogen; and

the pail assembly of any of claims 1-9, the bucket body being placed within the receiving cavity, the receiving cavity being communicable with the receiving cavity.