Handheld nitrogen dropping cup

Abstract

The utility model discloses a handheld nitrogen dropping cup which is particularly suitable for small-batch nitrogen dropping production. Comprising a handle, an exhaust hole, a sealing gasket, a cup cover, a nut, a gasket, a cup cover connector, an outer pipe, an outer pipe connector, a protection nozzle, a heat preservation ring, a cup body, an inner container and a liquid drainage pipe. The inner container is of a double-layer vacuum structure, the heat preservation ring is tightly matched with the outer wall of the inner container and the inner wall of the cup body, the handle is provided with an exhaust hole, and the exhaust hole is communicated with an inner cavity of the cup body. And a sealing gasket is arranged between the cup cover and the cup body. The cup cover connector compresses the gasket, the sealing gasket and the cup cover through the nut, the other end of the cup cover connector and one end of the outer pipe connector are bonded and sealed with the outer pipe through low-temperature glue, the other end of the outer pipe connector is matched with the protective nozzle in a threaded mode, one end of the liquid discharging pipe stretches into the bottom of the inner container, and the other end of the liquid discharging pipe is exposed out of the outer pipe connector and stretches into a liquid discharging opening of the protective nozzle. Compared with the prior art, the device has the advantages of low manufacturing cost, small size, practicability and simplicity in operation.

Description

Technical fields:

[0001] This invention relates to the field of liquid nitrogen filling technology, specifically a handheld nitrogen dripping cup. Background technology:

[0002] Currently, the beverage and edible oil bottling industries mostly use plastic bottles or aluminum cans as containers. After filling, liquid nitrogen is typically added to the bottle. The vaporization and expansion of the liquid nitrogen expels the air (oxygen) inside before sealing, thus preserving freshness and increasing the pressure inside the bottle to prevent it from collapsing. The most commonly used liquid nitrogen filling equipment is the automatic nitrogen dripping machine. This equipment is highly automated and efficient, suitable for high-speed production lines. However, this equipment is expensive, and small-batch production companies cannot afford such a high price, making nitrogen dripping preservation impossible. Summary of the Invention:

[0003] The purpose of this invention is to design a handheld nitrogen-dropping cup with low manufacturing cost, suitable for adding liquid nitrogen to small batches of packaging bottles.

[0004] 1. The technical solution to achieve the purpose of this invention is: a handheld nitrogen dripping cup, comprising a handle, an vent, a sealing gasket, a cup lid, a nut, a washer, a cup lid connector, an outer tube, an outer tube connector, a protective nozzle, a heat-insulating ring, a cup body, an inner liner, and a drain pipe. The inner liner has a double-layer vacuum structure. The cup body has threads at the top and a hollow interior. The heat-insulating ring is tightly fitted to the outer wall of the inner liner and the inner wall of the cup body. The handle has an vent, which corresponds to the opening in the cup body. The mating surfaces of the two are sealed with low-temperature adhesive. The vent communicates with the inner cavity of the cup body. A sealing gasket is provided between the cup lid and the cup body, and the sealing gasket is pressed tightly by the threaded connection between the two. One end of the cup lid connector is threaded, and a nut is used to press the gasket and sealing gasket tightly against the lower end of the cup lid. The deformation of the sealing gasket seals the threaded part of the cup lid connector. The other end of the cup lid connector is provided with a hole that matches the outer diameter of the outer tube. The mating surfaces are sealed with low-temperature adhesive. One end of the outer tube connector is provided with a hole that matches the outer tube. The mating surfaces are sealed with low-temperature adhesive. The other end is threaded and matches the thread of the protective nozzle. The outer tube has at least one bend. The bend shape of the drain pipe matches the outer tube. One end extends into the bottom of the inner liner, and the other end protrudes from the outer tube connector and extends into the drain port of the protective nozzle. The holes of the drain pipe that mate with the cup lid connector and the outer tube connector are sealed with low-temperature adhesive. The space between the outer tube and the drain pipe can be filled with insulation material or evacuated.

[0005] Compared with existing technologies, this invention has the advantages of low manufacturing cost, compact size and practicality, and simple operation. Attached image description:

[0006] Figure 1This is a schematic diagram of the structure of the present invention. Detailed implementation method:

[0007] To address the high cost of existing nitrogen dripping machines, this invention employs the following technical solution: an inner liner 14 is wrapped with an insulation layer 12, which is then fitted into a cup body 13. The inner liner has a double-layer vacuum structure for holding liquid nitrogen. A vent 2 is provided on the handle 1, corresponding to the vent on the cup body. The mating surfaces of the two are sealed with low-temperature adhesive, and the vent communicates with the inner cavity 15 of the cup body. A sealing gasket 3 is provided between the cup lid 4 and the cup body. The sealing gasket is pressed together using the threaded connection between the two, thereby sealing the cup lid and the cup body. One end of the cup lid connector 7 is threaded. The nut 5 presses the gasket 6 and sealing gasket against the lower end face of the cup lid, and the deformation of the sealing gasket seals the threaded portion of the cup lid connector. The other end of the cup lid connector has a hole that mates with the outer diameter of the outer tube 8. The mating surfaces are sealed with low-temperature adhesive. One end of the outer tube connector 10 has a hole that mates with the outer tube, and the mating surfaces are sealed with low-temperature adhesive. The other end is threaded and mates with the threaded protective nozzle 11. The drain pipe 16 is bent to match the shape of the outer tube, with one end extending into the bottom of the inner liner and the other end protruding from the drain port of the outer tube connector into the protective nozzle. The ends of the drain pipe that mate with the cup lid connector and the outer tube connector are sealed with low-temperature adhesive. The protective nozzle isolates the drain pipe from the outside environment, preventing direct contact with the human body and frostbite. The cup lid connector, drain pipe, outer tube, and outer tube connector form a sealed space 9. This space can be filled with insulation material or evacuated to reduce losses during liquid nitrogen transport. The inner liner, cup body, and lid form a space for liquid nitrogen storage and vaporization.

[0008] Operating Procedure: Unscrew the lid and pour liquid nitrogen into the cup, ensuring the liquid level does not exceed 80% of the inner liner's capacity. Tighten the lid. The vaporized nitrogen will then escape into the atmosphere through the vent, and the pressure inside the cup will be zero. When dripping nitrogen, hold the handle of the dripping cup with one hand, align the protective nozzle with the bottle opening, and press the vent with your thumb. As the vent is blocked, the pressure inside the cup will rise, causing the liquid nitrogen to drip through the drain tube into the bottle opening. Release your thumb to release the pressure and stop dripping, completing one dripping cycle. For continuous use, simply move the dripping cup, align the protective nozzle with the bottle opening, and press and release with your thumb. The amount of liquid nitrogen dripped is controlled by the duration of thumb pressure; the longer the pressure, the more liquid nitrogen dripped, and vice versa.

Claims

1. A handheld nitrogen dripping cup, comprising a handle, a vent, a sealing gasket, a cup lid, a nut, a washer, a cup lid connector, an outer tube, an outer tube connector, a protective nozzle, a heat-insulating ring, a cup body, an inner liner, and a drain pipe, characterized in that... The inner liner has a double-layer vacuum structure. The cup body has threads on the top and a hollow interior. The insulation ring matches the outer wall of the inner liner and the inner wall of the cup. The handle has an exhaust hole that corresponds to the opening in the cup body and communicates with the inner cavity of the cup. The cup lid is threaded to the cup body and has a sealing gasket. One end of the cup lid connector has a thread that passes through the cup lid, the sealing gasket, and the nut. The other end of the cup lid connector has a hole that matches the outer diameter of the outer tube. The mating surfaces are sealed with low-temperature adhesive. One end of the outer tube connector has a hole that matches the outer tube. The mating surfaces are sealed with low-temperature adhesive. The other end has threads that match the threads of the protective nozzle. The outer tube has at least one bend. The bend of the drain pipe matches the shape of the outer tube. One end of the drain pipe extends into the bottom of the inner liner, and the other end protrudes from the outer tube connector and extends into the drain port of the protective nozzle. The holes where the drain pipe mates with the cup lid connector and the outer tube connector are sealed with low-temperature adhesive.

2. A handheld nitrogen-dropping cup as described in claim 1, characterized in that... The space between the outer tube and the drain tube is filled with insulation material or evacuated.

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