Liquid nitrogen pail

Abstract

The liquid nitrogen pail comprises a pail body, a fixed pail, a pressing rod and a connecting rod, the top end of the pail body is open, and a liquid outlet hole is formed in the bottom end of the pail body; the fixed barrel is fixed on the outer wall of the barrel body, and correspondingly communicated through holes are formed in the top surface and the bottom surface of the fixed barrel; the pressing rod penetrates through the through hole of the fixed barrel, a spring sleeves the rod wall, opposite to the inner cavity of the fixed barrel, of the pressing rod, and the two ends of the spring are fixed to the rod wall of the pressing rod and rotationally abut against the inner bottom wall of the fixed barrel; one end of the connecting rod is perpendicularly fixed to the bottom end, and a cover plate is fixed to the other end of the connecting rod and can abut against the outer bottom wall of the barrel body to cover the liquid outlet hole. After liquid nitrogen is taken out of a liquid nitrogen tank through the barrel body, the cover plate is controlled through the pressing rod, the cover plate opens the liquid outlet hole so that the liquid nitrogen can flow out of the bottom of the barrel body, the barrel body does not need to be poured, waste of the liquid nitrogen is avoided, and the risk of frostbite of an operator is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cryogenic storage technology, and more specifically to a liquid nitrogen lifting container. Background Technology

[0002] Liquid nitrogen is an essential chemical in biological experiments, with a temperature of approximately -190°C, used for the transfer or preservation of tissues or cells. However, traditional liquid nitrogen containers are open-type designs, which can cause frostbite to the operator during the process of removing liquid nitrogen from the container. Furthermore, during the pouring process, liquid nitrogen is easily spilled, potentially causing frostbite to the operator and wasting the liquid nitrogen.

[0003] Therefore, how to provide a liquid nitrogen container that can prevent liquid nitrogen spraying, reduce liquid nitrogen waste, and effectively protect operators is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the present invention provides a liquid nitrogen lifting container, which aims to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A liquid nitrogen extraction container, comprising:

[0007] The barrel body has an open top and a liquid outlet at the bottom.

[0008] A fixed bucket is fixed to the outer wall of the bucket body, the axis of the fixed bucket is arranged parallel to the axis of the bucket body, and the top and bottom surfaces of the fixed bucket are provided with corresponding through holes.

[0009] A pressure rod passes through the through holes on the top and bottom surfaces of the fixed barrel from top to bottom. A spring is fitted on the pressure rod relative to the inner wall of the fixed barrel. The two ends of the spring are fixed to the inner wall of the pressure rod and rotate against the inner bottom wall of the fixed barrel, respectively.

[0010] A connecting rod, one end of which is fixed perpendicularly to the bottom end of the pressure rod, and the other end of which is fixed with a cover plate. The cover plate can abut against the outer bottom wall of the barrel to cover the liquid outlet.

[0011] The beneficial effects of the above technical solution are that, by covering the liquid outlet of the barrel with a cover plate, liquid nitrogen can be removed from the liquid nitrogen tank; when it is necessary to remove the liquid nitrogen from the barrel, by pushing the pressure rod downward, the cover plate moves downward to open the liquid outlet, and the liquid nitrogen can flow out from the liquid outlet at the bottom of the barrel without tilting the barrel, which can effectively prevent the waste of liquid nitrogen; one end of the spring is fixed to the pressure rod, and the other end rotates and abuts against the inner bottom wall of the fixed barrel. When the pressure rod is pushed downward, the pressure rod can drive the spring to rotate inside the fixed barrel and move the cover plate to one side of the whole body, so that the liquid nitrogen inside the whole body can flow out from the liquid outlet.

[0012] Preferably, a gasket is fixed to the top of the rod wall of the fixed barrel relative to the inner cavity of the pressure rod, and the gasket is fixed to the end of the spring away from the bottom wall of the fixed barrel. Under normal conditions, the two ends of the spring are supported between the gasket and the bottom wall of the fixed barrel, and the supporting force of the spring makes the cover plate close the liquid outlet hole. When it is necessary to remove the liquid nitrogen from the barrel, the pressure rod is pushed down, the pressure rod compresses the spring, and the cover plate is moved away from the liquid outlet hole to open it. By rotating the pressure rod, the cover plate can be rotated to one side of the barrel. Releasing the pressure rod will reset the spring, allowing the liquid nitrogen to flow out slowly from the liquid outlet hole. The operation is convenient and quick.

[0013] Preferably, the container also includes a lid, which can cover the open top surface of the container. Covering the container with the lid facilitates opening the container, and closing the lid after removing the liquid nitrogen prevents splashing.

[0014] Preferably, a handle is fixed to the lid surface away from the inner cavity of the bucket. The handle facilitates the removal of the lid.

[0015] Preferably, a lifting rod is fixed to the outer wall of the barrel relative to the fixed barrel, and the lifting rod extends out of the top surface of the barrel. The barrel can be used to scoop liquid nitrogen out of the liquid nitrogen tank using the lifting rod.

[0016] Preferably, the top surface of the fixing bucket is open, and a top cover is detachably connected to the open top surface of the fixing bucket. The top cover has a through hole that corresponds to and communicates with the through hole on the bottom surface of the fixing bucket. The detachable top cover facilitates the installation of the pressure rod and the spring.

[0017] Preferably, the height of the fixed bucket is not greater than the height of the bucket body.

[0018] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a liquid nitrogen lifting bucket. After the bucket body removes liquid nitrogen from the liquid nitrogen tank, the cover plate is controlled by the pressure rod. The cover plate opens the liquid outlet hole, allowing the liquid nitrogen to flow out from the bottom of the bucket body without tilting the bucket body, thus avoiding waste of liquid nitrogen and reducing the risk of frostbite to the operator. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 A schematic diagram of the bucket structure provided by this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the cover plate after it is pressed down according to the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the cover plate after rotation provided by this utility model.

[0023] in,

[0024] 1-Barrel body; 2-Lifting rod; 3-Barrel lid; 4-Handle; 5-Fixing barrel; 6-Pressure rod; 7-Spring; 8-Connecting rod; 9-Cover plate; 10-Discharge hole; 11-Gasket; 12-Top cover. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Participate in the attached Figures 1-3 This utility model discloses a liquid nitrogen extraction tank, comprising:

[0027] The barrel body 1 has an open top and a liquid outlet 10 at the bottom.

[0028] Fixed bucket 5 is fixed to the outer wall of bucket body 1. The axis of fixed bucket 5 is arranged parallel to the axis of bucket body 1. The top and bottom surfaces of fixed bucket 5 are provided with corresponding through holes.

[0029] The pressure rod 6 passes through the through holes on the top and bottom surfaces of the fixed barrel 5 from top to bottom. A spring 7 is sleeved on the rod wall of the pressure rod 6 relative to the inner cavity of the fixed barrel 5. The two ends of the spring 7 are fixed to the rod wall of the pressure rod 6 and rotated against the inner bottom wall of the fixed barrel 5, respectively.

[0030] Connecting rod 8, one end of which is fixed perpendicularly to the bottom end of pressure rod 6, and the other end is fixed with cover plate 9, which can abut against the outer bottom wall of barrel 1 to cover liquid outlet hole 10.

[0031] like Figure 1 As shown, the lifting bucket is composed of two parallel cylindrical containers, with the inner diameter of the lifting bucket being larger than that of the fixed bucket. A liquid outlet is opened at the bottom of the lifting bucket, allowing liquid nitrogen to flow out from the bottom surface of the lifting bucket. This eliminates the need to tilt the bucket, preventing liquid nitrogen waste and frostbite to the operator. A pressure rod passes through the fixed bucket, and the bottom end of the pressure rod is fixed to the cover plate via a connecting rod. When the cover plate closes the liquid outlet, one end of the spring is fixed to the rod wall at the top of the inner cavity of the fixed bucket relative to the pressure rod, while the other end rotates and abuts against the inner bottom wall of the fixed bucket. The spring supports prevent the pressure rod from sliding, thus ensuring that the cover plate can effectively close the liquid outlet.

[0032] like Figure 2 As shown, when the bucket is removed from the liquid nitrogen tank, the liquid nitrogen needs to be released. The pressure rod can be pushed down, the pressure rod compresses the spring, and at this time the pressure rod will drive the cover plate to move down, thereby opening the liquid outlet hole, and the liquid nitrogen can flow out from the liquid outlet hole;

[0033] like Figure 3 As shown, by rotating the pressure rod, the pressure rod drives the spring to rotate synchronously, and the cover plate can be rotated to one side of the barrel. The cover plate will not obstruct the flow of liquid nitrogen from the outlet hole.

[0034] To further optimize the above technical solution, a gasket 11 is fixed to the top of the rod wall of the pressure rod 6 relative to the inner cavity of the fixed barrel 5. The gasket 11 is fixed to the end of the spring 7 away from the bottom wall of the fixed barrel 5. The spring is fixed by the gasket, and the gasket moves synchronously with the movement of the pressure rod. The gasket supports the spring. When liquid nitrogen is contained in the barrel, the elastic force of the spring can support the pressure rod and prevent it from moving, ensuring that the cover plate effectively covers the liquid outlet and prevents liquid nitrogen from overflowing from the liquid outlet.

[0035] To further optimize the above technical solution, a bucket lid 3 is also included, which can cover the top opening of the bucket body 1.

[0036] To further optimize the above technical solution, a handle 4 is fixed to the lid surface of the bucket 3 away from the inner cavity of the bucket body 1.

[0037] To further optimize the above technical solution, a lifting rod 2 is fixed to the outer wall of the barrel 1 relative to the fixed barrel 5, and the lifting rod 2 extends out of the top surface of the barrel 1.

[0038] When in use, the liquid nitrogen is scooped out of the liquid nitrogen tank by operating the lever, and then the lid is closed to prevent liquid nitrogen from splashing and causing waste or frostbite to the operator. The lid can be easily removed by the handle.

[0039] In some other specific embodiments, the top surface of the fixed barrel 5 is open, and a top cover 12 is detachably connected to the open top surface of the fixed barrel 5. The top cover 12 has a through hole that corresponds to and communicates with the through hole on the bottom surface of the fixed barrel 5. The fixed barrel is provided with a detachable top cover, which facilitates the maintenance of the pressure rod and the spring.

[0040] To further optimize the above technical solution, the height of the fixed bucket 5 should not exceed the height of the bucket body 1. This ensures that the liquid nitrogen can be scooped out of the liquid nitrogen tank without affecting the bucket body, while also ensuring that the cover plate can effectively cover the liquid outlet.

[0041] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A liquid nitrogen bucket, characterized by, Include: Barrel (1), the barrel (1) top open, and the bottom end is provided with liquid outlet hole (10); Fixed barrel (5), the fixed barrel (5) is fixed on the outer wall of the barrel (1), the axis of the fixed barrel (5) is arranged in parallel with the axis of the barrel (1), the top surface and the bottom surface of the fixed barrel (5) are provided with through holes corresponding to the communication; Pressing rod (6), the pressing rod (6) is sequentially penetrated from top to bottom through the through holes of the top surface and the bottom surface of the fixed barrel (5), the spring (7) is sleeved on the rod wall of the inner cavity of the fixed barrel (5) relative to the pressing rod (6), the two ends of the spring (7) are fixed with the rod wall of the pressing rod (6) and the inner bottom wall of the fixed barrel (5) respectively; Connecting rod (8), one end of the connecting rod (8) is fixed vertically with the bottom end of the pressing rod (6), the other end is fixed with the cover plate (9), the cover plate (9) can be fixed with the outer bottom wall of the barrel (1) to cover the liquid outlet hole (10); The pressing rod (6) is fixed with the gasket (11) relative to the rod wall of the inner cavity top of the fixed barrel (5), the gasket (11) is fixed with the end of the spring (7) away from the inner bottom wall of the fixed barrel (5); The barrel (1) is fixed with the lifting rod (2) relative to the outer wall of the fixed barrel (5), the lifting rod (2) extends out of the top surface of the barrel (1); When the barrel (1) contains liquid nitrogen, the spring force of the spring (7) can support the pressing rod (6) without movement, so that the cover plate (9) effectively covers the liquid outlet hole (10).

2. A liquid nitrogen transfer pail according to claim 1, wherein, It also includes a barrel cover (3), the barrel cover (3) can cover the top opening of the barrel (1).

3. A liquid nitrogen transfer pail according to claim 2, wherein, The cover surface of the barrel cover (3) away from the inner cavity of the barrel (1) is fixed with the handle (4).

4. A liquid nitrogen transfer pail as defined in claim 1, wherein, The top surface of the fixed barrel (5) is open, the top cover (12) can be detachably connected at the open top surface of the fixed barrel (5), the through hole is provided on the top cover (12) corresponding to the through hole of the bottom surface of the fixed barrel (5).

5. A liquid nitrogen transfer pail as defined in claim 1, wherein, The height of the fixed barrel (5) is not greater than the height of the barrel (1).

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