Liquid nitrogen storage tank

Abstract

The utility model relates to the technical field of liquid nitrogen storage, in particular to a liquid nitrogen storage tank which comprises a liquid nitrogen storage tank body, a lower handle and an upper handle are fixedly installed on the side wall of the liquid nitrogen storage tank body, a pouring opening is formed in the upper end of the liquid nitrogen storage tank body, and a sealing cover is arranged on the pouring opening. Mounting cylinder seats are symmetrically and fixedly mounted on the side wall of the pouring opening, and anti-sputtering assemblies are arranged on the side edges of the mounting cylinder seats; the anti-sputtering assembly comprises a flow guide groove, and side bases are symmetrically installed on the two sides of the flow guide groove. According to the utility model, the flow guide groove in the anti-sputtering assembly can provide a backflow effect for the liquid nitrogen when the liquid nitrogen is poured, so that the liquid nitrogen slowly flows to a place where the liquid nitrogen needs to be guided along the flow guide groove, the skin frostbite caused by sputtering when the liquid nitrogen is poured is avoided, the use safety is improved, the anti-sputtering assembly is very convenient to mount and dismount, and the production cost is reduced. And meanwhile, the placement assembly is correspondingly arranged, so that the anti-sputtering assembly can be stored and stored when the anti-sputtering assembly is not used.

Description

Technical Field

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

[0002] Liquid nitrogen is a colorless, odorless and inert liquid formed at extremely low temperatures. It is non-flammable and non-corrosive. At normal pressure, the temperature of liquid nitrogen is about -196°C. It can expand from liquid to gaseous. One cubic meter of liquid nitrogen can expand to about 696 cubic meters of pure gaseous nitrogen. Although liquid nitrogen itself is non-flammable and non-corrosive, direct contact of the skin or eyes with liquid nitrogen can cause frostbite due to its extremely low temperature.

[0003] Liquid nitrogen is stored in a dedicated storage tank, but when it is needed, opening the tank and pouring it out can easily cause the risk of frostbite on the skin. Currently, liquid nitrogen storage tanks are not equipped with relevant anti-splashing devices. When pouring liquid nitrogen, it is easy to splash onto the skin, causing a certain risk of frostbite. The safety of use is poor. Therefore, we proposed a liquid nitrogen storage tank to solve the above problem. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art and proposes a liquid nitrogen storage tank.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A liquid nitrogen storage tank, comprising a liquid nitrogen storage tank body, a lower handle and an upper handle are fixedly installed on the side wall of the liquid nitrogen storage tank body, a pouring port is arranged at the upper end of the liquid nitrogen storage tank body, a sealing cover is arranged on the pouring port, a mounting cylinder seat is symmetrically fixedly installed on the side wall of the pouring port, and a splash-proof component is arranged on the side of the mounting cylinder seat; the splash-proof component comprises a guide groove, side seats are symmetrically installed on both sides of the guide groove, a sliding hole is opened on the inner side of the side seat, a plug is slidably installed on the inner side of the sliding hole, a plug is fixedly connected to the outer end of the plug, and the plug is fixedly connected to the side seat There is a pull-back spring, and a placement component is arranged on the side wall of the liquid nitrogen storage tank body; the placement component includes a groove drum, and the groove drum is fixedly installed on the side wall of the liquid nitrogen storage tank body and a leveling plate is installed on the inner wall of the groove drum, a flip cover is rotatably installed at the upper port of the groove drum, and a locking component is arranged on the side wall of the groove drum; the locking component includes a mounting column, and a lever is rotatably installed on the mounting column, a pressing block is fixedly connected to the lower end of the lever, a compression spring is fixedly connected between the pressing block and the side wall of the groove drum, a buckle seat is fixedly installed on the upper end of the lever, and a cushion block is arranged at the bottom of the buckle seat.

[0007] Preferably, the sealing cover is screwed onto the pouring spout, and the outer side of the sealing cover is hexagonal.

[0008] Preferably, the guide groove is a semicircular arc groove, and the inner diameter of the guide groove is larger than the outer diameter of the pouring port.

[0009] Preferably, the diameter of the insertion rod is slightly smaller than the inner diameter of the mounting cylinder seat.

[0010] Preferably, the guide groove is made of polypropylene material.

[0011] Preferably, the cross section of the groove drum is arc-shaped, the inner diameter of the groove drum is larger than the outer diameter of the guide groove, and the length of the groove drum is larger than the length of the guide groove.

[0012] Preferably, the cushion block is a high damping rubber plate.

[0013] Compared with the related art, the liquid nitrogen storage tank proposed by the utility model has the following beneficial effects:

[0014] In the utility model, a liquid nitrogen storage tank is provided with an anti-splashing component. When pouring and using liquid nitrogen in daily life, the anti-splashing component can be installed at the pouring port. The guide groove in the anti-splashing component is installed on the inner side of the mounting cylinder seat arranged on the side of the pouring port through the plug-in rod, and maintains a rotational connection relationship with the pouring port. In addition, the return force of the pull-back spring in the anti-splashing component causes the plug-in rod to be plugged into the inner side of the mounting cylinder seat. When the anti-splashing component needs to be removed, the plug-in rod is pulled outward to release the plug-in rotational connection relationship between the plug-in rod and the mounting cylinder seat. Then, the entire anti-splashing component can be removed at this time. The guide groove in the anti-splashing component can provide a backflow effect for the liquid nitrogen when pouring the liquid nitrogen, so that it flows slowly to the place where it needs to be introduced along the guide groove, thereby avoiding splashing when pouring the liquid nitrogen and causing frostbite on the skin, thereby improving the safety of use.

[0015] In the utility model, a liquid nitrogen storage tank is provided with a placement component, and the placement component and the liquid nitrogen storage tank body are of an integrated design. When the anti-splashing component is not used daily, the anti-splashing component can be placed in the groove drum, and the flip cover on the groove drum is closed. In addition, the locking component is used in conjunction with the flip cover to buckle the top opening of the groove drum, so that the anti-splashing component is sealed and placed in the groove drum. The locking component uses the resilience of the lever and the compression spring to drive the pad at the bottom of the upper buckle seat to form abutment and locking effect on the flip cover. When the flip cover needs to be opened, the pressing block arranged at the bottom of the lever can be pressed. The operation is convenient and the use is simple, which improves the practicality of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a liquid nitrogen storage tank proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of a three-dimensional split structure of a liquid nitrogen storage tank proposed by the utility model;

[0018] Figure 3 for Figure 1 The enlarged schematic diagram of part A in the middle;

[0019] Figure 4 for Figure 2 Enlarged schematic diagram of part B in the middle.

[0020] In the figure: 1. Liquid nitrogen storage tank body; 2. Lower handle; 3. Upper handle; 4. Pour spout; 5. Sealing cover; 6. Mounting cylinder seat; 7. Anti-splashing assembly; 71. Guide groove; 72. Side seat; 73. Slide hole; 74. Insert rod; 75. Plug; 76. Pull-back spring; 8. Placement assembly; 81. Groove cylinder; 82. Screw plate; 83. Flip cover; 9. Lock assembly; 91. Mounting column; 92. Lever; 93. Press block; 94. Compression spring; 95. Snap-on seat; 96. Pad. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Reference Figure 1-4 , please refer to Figure 1-Figure 4 ,in, Figure 1 This is a three-dimensional structural schematic diagram of a liquid nitrogen storage tank proposed by the utility model; Figure 2 This is a schematic diagram of a three-dimensional split structure of a liquid nitrogen storage tank proposed by the utility model; Figure 3 for Figure 1 The enlarged schematic diagram of part A in the middle; Figure 4 for Figure 2 A liquid nitrogen storage tank comprises: a liquid nitrogen storage tank body 1, a lower handle 2 and an upper handle 3 are fixedly installed on the side wall of the liquid nitrogen storage tank body 1, a pouring port 4 is arranged at the upper end of the liquid nitrogen storage tank body 1, a sealing cover 5 is arranged on the pouring port 4, a mounting cartridge seat 6 is symmetrically fixedly installed on the side wall of the pouring port 4, a splash-proof assembly 7 is arranged on the side of the mounting cartridge seat 6, a sealing cover 5 is screwed on the pouring port 4, and the outer side of the sealing cover 5 is arranged in a hexagonal shape.

[0023] Through the above-mentioned arrangement, the hexagonal arrangement of the sealing cover 5 is convenient for opening the sealing cover 5 in daily use, and the hexagonal relative transmission circular sealing cover has the characteristic of being easy to twist under force. The arrangement of the lower handle 2 and the upper handle 3 is convenient for auxiliary use when pouring liquid nitrogen in daily life, and is convenient for lifting the liquid nitrogen storage tank body 1.

[0024] In the present embodiment, the anti-sputtering component 7 includes a guide groove 71, side seats 72 are symmetrically installed on both sides of the guide groove 71, a sliding hole 73 is opened on the inner side of the side seat 72, a plug 74 is slidably installed on the inner side of the sliding hole 73, a plug 75 is fixedly connected to the outer end of the plug 74, a return spring 76 is fixedly connected between the plug 75 and the side seat 72, a placement component 8 is arranged on the side wall of the liquid nitrogen storage tank body 1, the guide groove 71 is a semicircular arc groove, and the inner diameter of the guide groove 71 is larger than the outer diameter of the pouring port 4, and the diameter of the plug 74 is slightly smaller than the inner diameter of the mounting cylinder seat 6.

[0025] Through the arrangement in the above manner, when installing the guide groove 71, the insertion rods 74 on both sides of the guide groove 71 are pulled outward, and then the sliding holes 73 on the side seats 72 are aligned with the installation cartridge seat 6. After releasing the hand, the insertion rods 74 are driven to be inserted into the installation cartridge seat 6 under the action of the return force of the return spring 76, thereby realizing the rotational connection relationship between the guide groove 71 and the pouring port 4. When pouring liquid nitrogen, the guide groove 71 provides a guiding effect for the liquid nitrogen to prevent frostbite caused by splashing.

[0026] In the present embodiment, the placement assembly 8 includes a groove drum 81, which is fixedly mounted on the side wall of the liquid nitrogen storage tank body 1 and a leveling plate 82 is mounted on the inner wall of the groove drum 81, a flip cover 83 is rotatably mounted at the upper end of the groove drum 81, a locking assembly 9 is arranged on the side wall of the groove drum 81, the cross section of the groove drum 81 is arc-shaped, the inner diameter of the groove drum 81 is larger than the outer diameter of the guide groove 71, and the length of the groove drum 81 is longer than the length of the guide groove 71.

[0027] By the above-mentioned arrangement and structure, the cross-section of the groove drum 81 is arc-shaped, the inner diameter of the groove drum 81 is larger than the outer diameter of the guide groove 71, and the length of the groove drum 81 is longer than the length of the guide groove 71, so that the overall size of the groove drum 81 is larger than the guide groove 71. When not in use daily, the guide groove 71 can be placed inside the groove drum 81.

[0028] In this embodiment, the locking assembly 9 includes a mounting column 91, on which a lever 92 is rotatably mounted, a pressing block 93 is fixedly connected to the lower end of the lever 92, a compression spring 94 is fixedly connected between the pressing block 93 and the side wall of the groove cylinder 81, a buckle seat 95 is fixedly mounted on the upper end of the lever 92, and a cushion block 96 is provided at the bottom of the buckle seat 95.

[0029] Through the above-mentioned arrangement, the lock assembly 9 utilizes the resilience of the lever 92 and the compression spring 94 to drive the pad 96 at the bottom of the upper buckle seat 95 to form a lock against the flip cover 83. When the flip cover 83 needs to be opened, just press the pressing block 93 set at the bottom of the lever 92. It is easy to operate and simple to use.

[0030] In this embodiment, the guide groove 71 is made of polypropylene material.

[0031] Through the above-mentioned arrangement, the polypropylene material has the characteristic of being resistant to low temperatures, so that the guide groove 71 can withstand the low temperature of liquid nitrogen during the drainage process.

[0032] In this embodiment, the spacer 96 is a high damping rubber plate.

[0033] Through the above-mentioned arrangement, the arrangement of the cushion block 96 as a high-damping rubber plate can improve the buckling stability of the cushion block 96 on the flip cover 83, and prevent the flip cover 83 from shaking after buckling.

[0034] The working principle of a liquid nitrogen storage tank provided by the utility model is as follows:

[0035] When in use, but when it is necessary to pour the liquid nitrogen, first install the anti-splashing assembly 7, pull the insertion rods 74 on both sides of the guide groove 71 outward, then align the sliding holes 73 on the side seat 72 with the installation cylinder seat 6, and after releasing the hand, the insertion rod 74 is driven to be inserted into the installation cylinder seat 6 under the action of the return force of the return spring 76, and then open the sealing cover 5, hold the lower handle 2 and the upper handle 3 to lift the liquid nitrogen storage tank body 1, align the guide groove 71 with the place where it needs to be poured, and then tilt the body of the liquid nitrogen storage tank body 1. During the pouring process, the guide groove 71 half-wraps the pouring port 4, and at the same time provides a backflow effect for the liquid nitrogen when pouring, so that the liquid nitrogen will not splash during the pouring process. To avoid the risk of frostbite, after pouring, straighten the can body, screw on the sealing cover 5, then pull the plug 75 outward to drive the insertion rod 74 to slide out of the limit range of the mounting cylinder seat 6, then the entire anti-splashing assembly 7 can be removed from the mounting cylinder seat 6, and then placed into the groove cylinder 81, press the pressing block 93 in the locking assembly 9, and then the buckle seat 95 at the upper end of the lever 92 will move outward out of the locking range of the flip cover 83, and then close the flip cover 83. After letting go, the rebound force of the compression spring 94 drives the pad 96 at the bottom of the buckle seat 95 at the upper end of the lever 92 to form abutment and locking effect on the flip cover, so that the entire anti-splashing assembly 7 is sealed and placed inside the groove cylinder 81.

[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A liquid nitrogen storage tank, characterized in that: The invention comprises a liquid nitrogen storage tank body (1), a lower handle (2) and an upper handle (3) are fixedly mounted on the side wall of the liquid nitrogen storage tank body (1), a pouring port (4) is arranged at the upper end of the liquid nitrogen storage tank body (1), a sealing cover (5) is arranged on the pouring port (4), a mounting cartridge seat (6) is symmetrically fixedly mounted on the side wall of the pouring port (4), and a splash-proof assembly (7) is arranged on the side of the mounting cartridge seat (6); The anti-sputtering assembly (7) comprises a guide groove (71), side seats (72) are symmetrically installed on both sides of the guide groove (71), a sliding hole (73) is opened inside the side seat (72), a plug (74) is slidably installed inside the sliding hole (73), a plug (75) is fixedly connected to the outer end of the plug (74), a return spring (76) is fixedly connected between the plug (75) and the side seat (72), and a placement assembly (8) is arranged on the side wall of the liquid nitrogen storage tank body (1); The placement assembly (8) comprises a groove drum (81), the groove drum (81) is fixedly mounted on the side wall of the liquid nitrogen storage tank body (1), a screed plate (82) is mounted on the inner wall of the groove drum (81), a flip cover (83) is rotatably mounted at the upper end of the groove drum (81), and a locking assembly (9) is arranged on the side wall of the groove drum (81); The lock assembly (9) comprises a mounting column (91), a lever (92) is rotatably mounted on the mounting column (91), a pressing block (93) is fixedly connected to the lower end of the lever (92), a compression spring (94) is fixedly connected between the pressing block (93) and the side wall of the groove cylinder (81), a buckle seat (95) is fixedly mounted on the upper end of the lever (92), and a cushion block (96) is arranged at the bottom of the buckle seat (95).

2. A liquid nitrogen storage tank according to claim 1, characterized in that: The sealing cover (5) is screwed and installed on the pouring spout (4), and the outer side of the sealing cover (5) is arranged in a hexagonal shape.

3. A liquid nitrogen storage tank according to claim 1, characterized in that: The guide groove (71) is a semicircular arc groove, and the inner diameter of the guide groove (71) is greater than the outer diameter of the pouring port (4).

4. A liquid nitrogen storage tank according to claim 1, characterized in that: The diameter of the insertion rod (74) is slightly smaller than the inner diameter of the mounting cylinder seat (6).

5. A liquid nitrogen storage tank according to claim 1, characterized in that: The guide groove (71) is made of polypropylene material.

6. A liquid nitrogen storage tank according to claim 1, characterized in that: The cross section of the groove cylinder (81) is arc-shaped, the inner diameter of the groove cylinder (81) is larger than the outer diameter of the guide groove (71), and the length of the groove cylinder (81) is larger than the length of the guide groove (71).

7. A liquid nitrogen storage tank according to claim 1, characterized in that: The cushion block (96) is a high-damping rubber plate.

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