A liquid nitrogen tank

Abstract

This utility model relates to the technical field of medical laboratory equipment. It discloses a liquid nitrogen tank, including a main body and at least three sets of support components equidistantly arranged around the sidewall of the main body. Mounting grooves extending from the middle of the main body to the bottom of the liquid nitrogen tank are equidistantly arranged on the sidewall of the main body. One end of each support component is rotatably connected to the mounting groove, and the other end of the support component abuts against the ground. Through this design, this utility model aims to prevent the liquid nitrogen tank from tipping over due to various reasons, thus preventing liquid nitrogen spillage and injury to personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of medical laboratory equipment, in particular to a liquid nitrogen tank. Background Art

[0002] Liquid nitrogen tanks are used to store liquid nitrogen. Usually, liquid nitrogen tanks are divided into transport type and storage type. Generally, the transport type is used for long-distance transportation, and the storage type liquid nitrogen tank is placed in the laboratory. The storage type liquid nitrogen tank is mainly used for freezing cell specimens, animal sperm, active preservation of biological samples, deep cryogenic treatment of metal materials, deep cryogenic assembly of precision parts, refrigeration and freezing in the medical and health industry, and medical surgical refrigeration lamps.

[0003] When working, experimenters usually need to open the liquid nitrogen cover to take liquid or place specimens into the liquid nitrogen tank for freezing. However, the liquid nitrogen tank may be knocked over due to improper operation or accidentally kicked while walking in the laboratory, causing the liquid nitrogen tank to topple over, resulting in liquid nitrogen spilling, which may frostbite the staff.

[0004] The storage type liquid nitrogen tanks currently on the market have a relatively simple external structure and do not have safety protection brackets, which can easily cause safety accidents and thus reduce the overall safety.

[0005] Therefore, to solve the above-mentioned situation is a problem that needs to be solved urgently by people in this field. Utility Model Content

[0006] In order to solve the technical defects proposed in the above background technology, the purpose of the utility model is to provide a liquid nitrogen tank, which can prevent liquid nitrogen from spilling and freezing the workers due to workers accidentally knocking over the liquid nitrogen tank.

[0007] The utility model adopts the following technical scheme: a liquid nitrogen tank, comprising a liquid nitrogen tank body, and also comprising at least three groups of support components equidistantly surrounding the side wall of the liquid nitrogen tank body, wherein mounting grooves extending from the middle of the liquid nitrogen tank body to the bottom of the liquid nitrogen tank are equidistantly arranged on the side wall of the liquid nitrogen tank body, one end of the support component is rotatably connected to the mounting groove, and the other end of the support component is in contact with the ground.

[0008] By adopting the above scheme, through the support assembly on the liquid nitrogen tank body, it is possible to prevent the liquid nitrogen tank from tipping over due to the staff accidentally touching the liquid nitrogen tank, thereby causing the liquid nitrogen in the tank to spill out and freeze the staff.

[0009] The support assembly includes a support rod for contacting the bottom surface and a connecting rod for limiting the opening angle of the support rod. The top end of the support rod is rotatably connected to the top of the mounting groove, one end of the connecting rod is slidably connected in the mounting groove, and the other end of the connecting rod is rotatably connected to the support rod.

[0010] By adopting the above scheme, by setting a support rod, one end of the support rod can be abutted against the ground, so that the posture of the liquid nitrogen tank can always be kept stable. At the same time, by setting a connecting rod, the opening angle between the support rod and the liquid nitrogen tank body can be controlled.

[0011] Furthermore, rotating columns are arranged on both sides of the top end of the support rod, a rotating groove is arranged in the installation groove, and the rotating columns are rotatably connected in the rotating groove.

[0012] By adopting the above-mentioned scheme, by arranging the rotating column and the rotating groove to cooperate with each other, the support rod and the installation groove can be rotatably connected, which is convenient for the staff to open the support assembly for fixing when working.

[0013] Furthermore, a slide groove is provided at the bottom of the installation groove, and a slider is provided at the rotation point of one end of the connecting rod connected to the slide groove, and the slider is slidably installed in the slide groove.

[0014] By adopting the above-mentioned solution, the connecting rod and the slide groove can slide, so that the support assembly can be stored in the installation groove, and the angle between the support rod and the installation groove can be further controlled.

[0015] Furthermore, a movable hole and an extension rod for contacting the ground are provided on one side of the support rod facing the installation groove, and the top end of the extension rod is rotatably connected to the bottom of the movable hole.

[0016] By adopting the above-mentioned solution, the length of the support rod can be extended so that it can better contact the ground, and the posture of the liquid nitrogen tank can be further stabilized.

[0017] Furthermore, a movable hole is provided at the top end of the extension rod, a movable column is provided in the storage groove, and the movable hole is rotatably connected to the movable column.

[0018] By adopting the above scheme, by arranging the movable column to cooperate with the movable hole, the extension rod and the telescopic rod can be rotatably connected, which is convenient for the staff to store the extension rod.

[0019] Furthermore, a limit piece is provided near the top end of the extension rod for limiting the telescopic length of the extension rod, and a limit hole is provided at the support rod corresponding to the limit piece, and the extension rod is slidably connected in the support rod.

[0020] By adopting the above solution, the stroke position of the extension rod can be fixed after the extension rod reaches the specified telescopic length. At the same time, the extension rod is slidably connected to the support rod, which is conducive to the storage of the extension rod, making it more practical as a whole.

[0021] Furthermore, a travel groove for extending and retracting the extension rod is provided in the support rod, and the extension rod is slidably connected in the travel groove.

[0022] By adopting the above solution, a travel cavity can be provided when the extension rod is extended or retracted, which is beneficial for preventing the extension rod from having position deviation when it is extended or retracted.

[0023] Furthermore, the support assembly also includes a foot base for contacting the ground, and the top end of the foot base is detachably sleeved on the bottom end of the extension rod.

[0024] By adopting the above solution, the contact area between the support assembly and the ground can be made larger, which is conducive to further stabilizing the posture of the liquid nitrogen tank, so that the liquid nitrogen tank will not fall over after the staff accidentally touches it, thereby preventing the liquid nitrogen from spilling and freezing the staff.

[0025] In summary, the beneficial effects of the utility model are as follows: by equidistantly arranging the support assembly and the mounting groove on the liquid nitrogen tank, the liquid nitrogen tank can be prevented from tipping over and causing liquid nitrogen to spill when the staff is taking liquid or walking around. At the same time, the support assembly is stored in the mounting groove after use, so that the support assembly does not occupy other places. At the same time, an extension rod and a foot seat are arranged at one end of the support rod that abuts the ground, so that it can better abut the ground and thus maintain a stable posture. At the same time, the extension rod adopts two schemes of rotational connection and sliding connection with the support rod, which can make the applicability of the utility model higher.

[0026] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of Embodiment 1 of the present utility model;

[0028] Figure 2 It is a cross-sectional view of Example 1 of the utility model;

[0029] Figure 3 It is an exploded view of the support assembly of Example 1 of the utility model;

[0030] Figure 4 It is an enlarged view of the installation slot of Example 1 of the utility model;

[0031] Figure 5 It is a structural diagram of Embodiment 2 of the present utility model;

[0032] Figure 6It is an enlarged exploded view of the support rod and the extension rod of Example 2 of the utility model.

[0033] Explanation of the reference numerals in the figure: 1. Liquid nitrogen tank body; 2. Support assembly; 3. Mounting groove; 21. Support rod; 211. Rotating column; 212. Movable column; 213. Extension rod; 2131. Movable hole; 2132. Limiting member; 214. Storage groove; 215. Limiting hole; 216. Travel groove; 22. Connecting rod; 221. Slider; 31. Rotating groove; 32. Slide groove; 4. Footrest. DETAILED DESCRIPTION

[0034] In order to make the content of the utility model more clearly understood, the utility model is further described below based on specific embodiments in combination with the accompanying drawings.

[0035] It should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "inner", "outer" and the like used herein to indicate directions or positional relationships are based on directions 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. Unless otherwise specified, "plurality" means two or more.

[0036] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood by specific circumstances.

[0037] Understandably, in the related art, in order to prevent the liquid nitrogen tank from tipping over, the liquid nitrogen tanks currently on the market usually adopt a base or bracket installed at the bottom. However, when the staff moves the liquid nitrogen tank, the base or bracket remains in place, and the base or bracket needs to be removed again, which further increases their workload. At the same time, after the liquid nitrogen tank is moved to the designated position, there is no support frame to stabilize it, which further increases the risk of the liquid nitrogen tank tipping over. In addition, there is another liquid nitrogen tank on the market, which has a solution of fixing a bracket or base at the bottom of the liquid nitrogen tank, but this solution is not convenient for storage, occupies too much space in the laboratory, and may also trip up the staff, causing harm to the staff.

[0038] Embodiment 1

[0039] In view of this, if Figures 1 to 4As shown, the present embodiment 1 provides a liquid nitrogen tank, including a liquid nitrogen tank body 1, and also includes at least three groups of support assemblies 2 equidistantly arranged around the side wall of the liquid nitrogen tank body 1, the number of the support assemblies 2 is at least three groups or more and they are equidistantly arranged, in this way, the liquid nitrogen tank can be effectively prevented from tipping over and causing liquid nitrogen to spill out, and mounting grooves 3 extending from the middle of the liquid nitrogen tank body 1 to the bottom of the liquid nitrogen tank are equidistantly arranged at the side wall of the liquid nitrogen tank body 1, and the position of the mounting groove 3 is set at a position corresponding to the support assembly 2, and the support assembly 2 can be received in the mounting groove 3, and one end of the support assembly 2 is rotatably connected to the mounting groove 3, and the other end of the support assembly 2 is abutted against the ground. After the support assembly 2 is unfolded, the liquid nitrogen tank can always be kept perpendicular to the ground, so as to stabilize its posture, so that the liquid nitrogen tank will not tip over and cause liquid nitrogen to spill out, thereby freezing the staff.

[0040] In this embodiment, the support assembly 2 includes a support rod 21 for contacting the bottom surface and a connecting rod 22 for limiting the opening angle of the support rod 21. By setting the support rod 21 and the connecting rod 22, after the support assembly 2 is in contact with the ground, the angle between the support rod 21 and the mounting groove 3 can be a maximum of 45 degrees. This can facilitate the staff to better operate the storage or opening of the support assembly 2 of the liquid nitrogen tank. The top of the support rod 21 is rotatably connected to the top of the mounting groove 3, one end of the connecting rod 22 is slidably connected to the mounting groove 3, and the other end of the connecting rod 22 is rotatably connected to the support rod 21. By connecting one end of the support rod 21 to the mounting groove 3, the connecting rod 22 can limit the support rod 21. At the same time, the connecting rod 22 is slidably connected to the mounting groove 3, which can facilitate the opening or storage of the support rod 21, so that it can be more conveniently stored in the mounting groove 3, avoiding the liquid nitrogen tank from occupying more space.

[0041] Specifically, rotating columns 211 are provided on both sides of the top of the support rod 21. The rotating columns 211 are provided near the top of the support rod 21 and at the positions of the two side walls of the installation groove 3. The installation groove 3 is provided with a rotating groove 31. The position of the rotating groove 31 is set at a position corresponding to the rotating columns 211. The rotating columns 211 are rotatably connected in the rotating groove 31, so that the support assembly 2 and the installation groove 3 can be better rotatably connected. The bottom of the installation groove 3 is provided with a slide groove 32. A slider 221 is provided at the rotation point of one end of the connecting rod 22 connected to the slide groove 32. The slider 221 is slidably installed in the slide groove 32. By providing the slide groove 32 and the slider 221 in coordination, the end of the connecting rod 22 connected to the installation groove 3 can slide in the installation groove 3, and then the entire support assembly 2 can be stored in the installation groove 3.

[0042] In this embodiment, a storage groove 214 and an extension rod 213 for contacting the ground are provided on the side of the support rod 21 facing the installation groove 3, and a storage groove 214 is provided on the inner side of the end of the support rod 21 facing the installation groove 3. At the same time, an extension rod 213 is provided at the end of the support rod 21 contacting the ground. The top of the extension rod 213 is rotatably connected to the bottom of the storage groove 214, and the extension rod 213 can be received in the storage groove 214. At the same time, the other end of the extension rod 213 is contacted with the ground, so that the support rod 21 can be supported to the ground when the length is not enough, thereby further maintaining the posture of the liquid nitrogen tank stable and preventing the liquid nitrogen tank from tipping over.

[0043] Specifically, a movable hole 2131 is provided at the top of the extension rod 213. By providing the movable hole 2131 at the top of the extension rod 213 and providing a movable column 212 in the storage groove 214, the top of the extension rod 213 and the end of the support rod 21 abutting the ground can be rotatably connected, and the movable hole 2131 is rotatably connected to the movable column 212. While the extension rod 213 is rotatably connected to the storage, the extension rod 213 can be stored in the storage groove 214. The extension rod 213 can be opened or stored according to the actual needs of the staff, thereby making the practicality of the new use more enhanced.

[0044] In this embodiment, the support assembly 2 also includes a foot 4 for contacting the ground. By sleeve-fitting the foot 4 on the extension rod 213, the contact area with the ground can be increased, which is beneficial to prevent the liquid nitrogen tank from tipping over. At the same time, the top end of the foot 4 can be detachably sleeved on the bottom end of the extension rod 213, and the foot 4 can be disassembled and installed by the staff according to different working environments and situations, so that the support assembly 2 is convenient to be stored in the installation groove 3, thereby increasing the practicality of the liquid nitrogen tank.

[0045] Embodiment 2

[0046] like Figure 5 to Figure 6As shown, in another embodiment, a limit piece 2132 for limiting the telescopic length of the extension rod 213 is provided near the top end of the extension rod 213, the limit piece 2132 is elastically connected to the extension rod 213, a spring is provided inside the extension rod 213, the limit piece 2132 is connected to one end of the spring, and the other end of the spring is built into the extension rod 213, and a plurality of limit holes 215 are equidistantly provided at the position of the support rod 21 corresponding to the limit piece 2132. By providing a plurality of limit holes 215, the telescopic length of the extension rod 213 can be adjusted in steps, the extension rod 213 is slidably connected to the support rod 21, the limit piece 2132 is embedded in the limit hole 215, the extension rod 213 can slide in the support rod 21, and at the same time, the limit piece 2132 cooperates with the limit hole 215, so that after the extension rod 213 reaches the specified telescopic length, the sliding connection between the extension rod 213 and the telescopic rod can be converted into a fixed connection, thereby achieving the fixation of the telescopic length of the extension rod 213.

[0047] Specifically, a travel groove 216 for the extension rod 213 to slide is provided in the support rod 21, and the extension rod 213 is slidably connected in the travel groove 216. A travel groove 216 adapted to the outer wall of the extension rod 213 is provided inside the support rod 21. The support rod 21 is sleeved on the outer wall of the extension rod 213, so that the extension rod 213 can perform piston sliding in the support rod 21.

[0048] The principle of the implementation mode of the present application is as follows: by equidistantly installing the support assembly 2 on the liquid nitrogen tank, and at the same time, a mounting groove 3 is provided at the position of the support assembly 2, the support assembly 2 is rotatably connected to the mounting groove 3, and the support assembly 2 includes a support rod 21 and a connecting rod 22, and at the same time, a slide groove 32 is provided at the bottom of the mounting groove 3, and the connecting rod 22 is respectively connected to the slide groove 32 and the support rod 21, so that the connecting rod 22 can limit the opening angle of the support rod 21, and at the same time, an extension rod 213 and a storage groove 214 are provided on the support rod 21, and the extension rod 213 is rotatably connected to the support rod 21 in the storage groove 214; at the same time, by providing a limiting member 2132 on the extension rod 213, and providing a limiting hole 215 on the support rod 21, the extension rod 213 is slidably connected to the support rod 21, and the limiting member 2132 is engaged in the limiting hole 215, thereby limiting the relative length of the extension rod 213 and the support rod 21, and at the same time, the extension rod 213 can also be installed with a foot seat 4, which can increase the contact area with the ground.

[0049] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A liquid nitrogen tank, comprising a liquid nitrogen tank body (1), characterized in that: The invention also comprises at least three groups of support assemblies (2) which are equidistantly arranged around the side wall of the liquid nitrogen tank body (1); mounting grooves (3) which extend from the middle of the liquid nitrogen tank body (1) to the bottom of the liquid nitrogen tank are equidistantly arranged on the side wall of the liquid nitrogen tank body (1); one end of the support assembly (2) is rotatably connected to the mounting groove (3); and the other end of the support assembly (2) is in contact with the ground.

2. A liquid nitrogen tank according to claim 1, characterized in that: The support assembly (2) comprises a support rod (21) for contacting the bottom surface and a connecting rod (22) for limiting the opening angle of the support rod (21); the top end of the support rod (21) is rotatably connected to the top of the mounting groove (3); one end of the connecting rod (22) is slidably connected in the mounting groove (3); and the other end of the connecting rod (22) is rotatably connected to the support rod (21).

3. A liquid nitrogen tank according to claim 2, characterized in that: Rotating columns (211) are arranged on both sides of the top end of the support rod (21), a rotating groove (31) is arranged in the installation groove (3), and the rotating column (211) is rotatably connected in the rotating groove (31).

4. A liquid nitrogen tank according to claim 2, characterized in that: A slide groove (32) is provided at the bottom of the installation groove (3), and a slider (221) is provided at a rotation point where one end of the connecting rod (22) is connected to the slide groove (32), and the slider (221) is slidably installed in the slide groove (32).

5. A liquid nitrogen tank according to claim 2, characterized in that: A receiving groove (214) and an extension rod (213) for contacting the ground are provided on one side of the support rod (21) facing the installation groove (3); the top end of the extension rod (213) is rotatably connected to the bottom of the receiving groove (214).

6. A liquid nitrogen tank according to claim 5, characterized in that: The top end of the extension rod (213) is provided with a movable hole (2131), a movable column (212) is provided in the storage groove (214), and the movable hole (2131) is rotatably connected to the movable column (212).

7. A liquid nitrogen tank according to claim 5, characterized in that: A limiting piece (2132) for limiting the telescopic length of the extension rod (213) is provided near the top end of the extension rod (213); a plurality of limiting holes (215) are equidistantly provided on the support rod (21) at a position corresponding to the limiting piece (2132); the extension rod (213) is slidably connected to the support rod (21); and the limiting piece (2132) is embedded in the limiting hole (215).

8. A liquid nitrogen tank according to claim 7, characterized in that: The support rod (21) is provided with a travel groove (216) for the extension rod (213) to slide, and the extension rod (213) is slidably connected in the travel groove (216).

9. A liquid nitrogen tank according to any one of claims 5-8, characterized in that: The support assembly (2) also includes a foot base (4) for contacting the ground, and the top end of the foot base (4) is detachably sleeved on the bottom end of the extension rod (213).

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