Liquid nitrogen gun convenient to use

Abstract

The utility model is applicable to the technical field of liquid nitrogen guns, and provides a liquid nitrogen gun convenient to use, which comprises a tank body, a liquid injection pipe is communicated and fixedly mounted on the tank body, a valve is mounted on the liquid injection pipe, a cross pipe is communicated and fixedly mounted at the top of the tank body, a guide pipe is communicated and fixedly mounted at the top of the cross pipe, and a nozzle is communicated and fixedly mounted at one end of the guide pipe. One side of the cross pipe is provided with an opening, a sealing plug is arranged in the cross pipe, the sealing plug is used for blocking the cross pipe, and a connecting shaft is fixedly installed on the sealing plug. The rotating disc is rotated to drive the first rotating shaft to rotate, the communicating hole rotates synchronously, the inner wall of the cross pipe can block a port of the communicating hole, and therefore the opening size of the communicating hole is adjusted, the flow is adjusted, or the communicating hole is directly blocked, and the cross pipe can be completely blocked. According to the liquid nitrogen gun, the discharge flow of liquid nitrogen can be flexibly adjusted, operation is convenient and fast, a worker can operate the liquid nitrogen gun with one hand, consumed time is short, response is rapid, and the discharge flow of the nozzle can be accurately controlled.

Description

Technical Field

[0001] This utility model belongs to the field of liquid nitrogen gun technology, and in particular relates to an easy-to-use liquid nitrogen gun. Background Technology

[0002] A liquid nitrogen gun is a specialized tool that utilizes the cryogenic properties of liquid nitrogen. By spraying liquid nitrogen, it can instantly generate extremely low temperatures. It is commonly used in scientific research experiments for rapidly freezing biological samples, in industrial applications for cryogenic material processing, and in the food processing industry for rapidly freezing foods to maintain their freshness and taste. Special protective measures are required when operating it.

[0003] Existing liquid nitrogen guns lack convenient flow rate adjustment, as different experiments and production processes have varying requirements for flow rate. For example, in food processing, different types and sizes of food require different freezing speeds and degrees. If the liquid nitrogen gun's flow rate cannot be easily adjusted, it cannot provide the optimal freezing conditions for various foods, affecting their quality and taste. Furthermore, if the adjustment process is inconvenient and time-consuming, it also hinders precise control of the liquid nitrogen flow rate. To address these issues, designing an easy-to-use liquid nitrogen gun is essential. Utility Model Content

[0004] This invention provides an easy-to-use liquid nitrogen gun to solve the aforementioned problems in the prior art.

[0005] This utility model is implemented as follows: an easy-to-use liquid nitrogen gun includes a tank, an injection pipe connected and fixedly installed on the tank, a valve installed on the injection pipe, a cross tube connected and fixedly installed on the top of the tank, a guide tube connected and fixedly installed on the top of the cross tube, and a nozzle connected and fixedly installed at one end of the guide tube.

[0006] The cross tube has an opening on one side, and a sealing plug is installed inside the cross tube to seal it. A connecting shaft is fixedly installed on the sealing plug and rotatably mounted on the cross tube. A connecting hole is provided on the sealing plug, and a worm gear is fixedly installed at one end of the connecting shaft. A worm is rotatably mounted on the outside of the tank, and the worm meshes with the worm gear, with a self-locking transmission between them. A handle is fixedly installed on the side of the tank, and a groove is provided at the upper end of the handle. A first rotating shaft is provided in the groove and rotatably mounted on the handle. A turntable is fixedly installed on the first rotating shaft. A linkage mechanism is provided on the tank, and the first rotating shaft drives the worm to rotate through the linkage mechanism.

[0007] Preferably, the handle surface is provided with anti-slip texture.

[0008] Preferably, the linkage mechanism includes a support plate, which is fixedly installed on the tank body. A second rotating shaft is rotatably installed on the support plate. A first synchronous belt mechanism is installed between the second rotating shaft and the first rotating shaft, and the second rotating shaft and the first rotating shaft are driven by the first synchronous belt mechanism.

[0009] Preferably, a second synchronous belt mechanism is installed between the second rotating shaft and the worm gear, and the second rotating shaft and the worm gear are driven by the second synchronous belt mechanism.

[0010] Preferably, the corners of the handle are rounded.

[0011] Preferably, the tank is equipped with a liquid level monitoring and display device.

[0012] Preferably, a protective cover is fixedly installed on the tank body, the protective cover covers the first synchronous belt mechanism and the second synchronous belt mechanism, and the turntable is disposed outside the protective cover.

[0013] Preferably, the outer surface of the tank is provided with a wear-resistant coating.

[0014] Compared with related technologies, the easy-to-use liquid nitrogen gun provided by this utility model has the following beneficial effects:

[0015] The rotating disc drives the first shaft to rotate, causing the worm gear, connecting shaft, and sealing plug to rotate synchronously. The connecting hole rotates synchronously as well, and the inner wall of the cross tube can seal the port of the connecting hole, thereby adjusting the opening size of the connecting hole and thus the flow rate. Alternatively, the connecting hole can be directly sealed, completely blocking the cross tube. Liquid nitrogen passes through the connecting hole, then enters the nozzle through a conduit, and finally exits through the nozzle. The liquid nitrogen gun of this application allows for flexible adjustment of the liquid nitrogen discharge flow rate and is easy to operate. It can be operated with one hand, is quick to respond, requires no waiting time, and can precisely control the nozzle's discharge flow rate while promptly cutting off the liquid nitrogen discharge. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the present invention;

[0018] Figure 3 This is an enlarged schematic diagram of a portion of the cross-shaped tube in this utility model;

[0019] Figure 4 This is an enlarged sectional view of a portion of the cross-shaped tube in this utility model;

[0020] Figure 5 This is an exploded schematic diagram of the sealing plug and cross tube in this utility model.

[0021] In the diagram: 1. Tank body; 2. Injection pipe; 3. Valve; 4. Cross tube; 5. Guide tube; 6. Nozzle; 7. Sealing plug; 8. Connecting shaft; 9. Connecting hole; 10. Worm gear; 11. Worm; 12. Handle; 13. Groove; 14. First rotating shaft; 15. Support plate; 16. Second rotating shaft; 17. First synchronous belt mechanism; 18. Second synchronous belt mechanism; 19. Protective cover; 20. Turntable. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] A preferred embodiment of the easy-to-use liquid nitrogen gun provided by this invention is, for example... Figures 1 to 5 As shown:

[0025] An easy-to-use liquid nitrogen gun includes a tank 1, an injection pipe 2 connected and fixedly installed on the tank 1, a valve 3 installed on the injection pipe 2, a cross tube 4 connected and fixedly installed on the top of the tank 1, a conduit 5 connected and fixedly installed on the top of the cross tube 4, and a nozzle 6 connected and fixedly installed at one end of the conduit 5. The cross tube 4 has an opening on one side, and a sealing plug 7 is installed inside the cross tube 4 to seal the cross tube 4. A connecting shaft 8 is fixedly installed on the sealing plug 7 and is rotatably mounted on the cross tube 4. A connecting hole 9 is opened on the sealing plug 7. A worm gear 10 is fixedly installed at one end of the connecting shaft 8. A worm 11 is rotatably installed on the outside of the tank body 1. The worm 11 meshes with the worm gear 10 and the transmission between the two has self-locking property. A handle 12 is fixedly installed on the side of the tank body 1. A groove 13 is opened at the upper end of the handle 12. A first rotating shaft 14 is installed in the groove 13 and is rotatably mounted on the handle 12. A turntable 20 is fixedly installed on the first rotating shaft 14. A linkage mechanism is provided on the tank body 1. The first rotating shaft 14 drives the worm 11 to rotate through the linkage mechanism.

[0026] The linkage mechanism includes a support plate 15, which is fixedly mounted on the tank body 1. A second rotating shaft 16 is rotatably mounted on the support plate 15. A first synchronous belt mechanism 17 is installed between the second rotating shaft 16 and the first rotating shaft 14, and the two shafts are driven by the first synchronous belt mechanism 17. A second synchronous belt mechanism 18 is installed between the second rotating shaft 16 and the worm gear 11, and the two shafts are driven by the second synchronous belt mechanism 18.

[0027] High-pressure liquid nitrogen is injected into tank 1 through injection pipe 2. During operation, the operator holds handle 12 with their thumb resting on turntable 20. Rotating turntable 20 drives the first rotating shaft 14, which in turn drives the second rotating shaft 16 via the first synchronous belt mechanism 17. The second rotating shaft 16, in turn, drives the worm gear 11 via the second synchronous belt mechanism 18. The worm gear 11 drives the worm wheel 10, which in turn drives the worm wheel 10, connecting shaft 8, and sealing plug 7. When sealing plug 7 rotates, connecting hole 9 rotates synchronously. The inner wall of cross tube 4 can block the port of connecting hole 9, thereby adjusting the opening size of connecting hole 9 and thus the flow rate. Alternatively, directly blocking connecting hole 9 can completely seal cross tube 4. Liquid nitrogen passes through connecting hole 9, then through conduit 5 into nozzle 6, and finally exits through nozzle 6.

[0028] The device can flexibly adjust the discharge flow rate of liquid nitrogen and is easy to operate. It can be operated by one hand, takes little time, reacts quickly, and does not require waiting time. It can control the discharge flow rate of nozzle 6 with relatively precise control and cut off the discharge of liquid nitrogen from nozzle 6 in a timely manner.

[0029] Tank 1 is equipped with a liquid level monitoring and display device. The liquid level monitoring and display device allows operators to easily know the remaining amount of liquid nitrogen in the tank, avoiding the impact of liquid nitrogen depletion on use. The liquid level monitoring and display device uses a capacitive monitoring method, which converts the liquid level signal into an electrical or mechanical signal and displays it intuitively on the display device.

[0030] The handle 12 features an anti-slip texture to enhance grip, and its rounded corners provide a more comfortable grip. A protective cover 19 is fixedly mounted on the tank body 1, covering the first synchronous belt mechanism 17 and the second synchronous belt mechanism 18. The turntable 20 is positioned outside the protective cover 19, thus protecting the internal structure and components. The outer surface of the tank body 1 is coated with a wear-resistant layer to improve its wear resistance.

[0031] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0032] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A user-friendly liquid nitrogen gun, characterized in that, Includes a tank body (1), on which a liquid injection pipe (2) is connected and fixedly installed, on which a valve (3) is installed, on which a cross tube (4) is connected and fixedly installed at the top of the tank body (1), on which a conduit (5) is connected and fixedly installed at the top of the cross tube (4), and on which a nozzle (6) is connected and fixedly installed at one end of the conduit (5). The cross tube (4) has an opening on one side, and a sealing plug (7) is provided inside the cross tube (4). The sealing plug (7) is used to seal the cross tube (4). A connecting shaft (8) is fixedly installed on the sealing plug (7). The connecting shaft (8) is rotatably installed on the cross tube (4). A connecting hole (9) is provided on the sealing plug (7). A worm gear (10) is fixedly installed at one end of the connecting shaft (8). A worm (11) is rotatably installed outside the tank body (1). The worm (11) and the worm gear (9) are connected. 10) The two mesh and the transmission between them has self-locking property. A handle (12) is fixedly installed on the side of the tank (1). A groove (13) is opened at the upper end of the handle (12). A first rotating shaft (14) is provided in the groove (13). The first rotating shaft (14) is rotatably installed on the handle (12). A turntable (20) is fixedly installed on the first rotating shaft (14). A linkage mechanism is provided on the tank (1). The first rotating shaft (14) drives the worm (11) to rotate through the linkage mechanism.

2. The easy-to-use liquid nitrogen gun as described in claim 1, characterized in that, The handle (12) has anti-slip texture on its surface.

3. The easy-to-use liquid nitrogen gun as described in claim 1, characterized in that, The linkage mechanism includes a support plate (15), which is fixedly installed on the tank (1). A second rotating shaft (16) is rotatably installed on the support plate (15). A first synchronous belt mechanism (17) is installed between the second rotating shaft (16) and the first rotating shaft (14). The second rotating shaft (16) and the first rotating shaft (14) are driven by the first synchronous belt mechanism (17).

4. The easy-to-use liquid nitrogen gun as described in claim 3, characterized in that, A second synchronous belt mechanism (18) is installed between the second rotating shaft (16) and the worm (11), and the second rotating shaft (16) and the worm (11) are driven by the second synchronous belt mechanism (18).

5. The easy-to-use liquid nitrogen gun as described in claim 1, characterized in that, The corners of the handle (12) are rounded.

6. The easy-to-use liquid nitrogen gun as described in claim 1, characterized in that, The tank (1) is equipped with a liquid level monitoring and display device.

7. The easy-to-use liquid nitrogen gun as described in claim 4, characterized in that, A protective cover (19) is fixedly installed on the tank (1). The protective cover (19) covers the first synchronous belt mechanism (17) and the second synchronous belt mechanism (18). The turntable (20) is located outside the protective cover (19).

8. The easy-to-use liquid nitrogen gun as described in claim 1, characterized in that, The outer surface of the tank (1) is provided with a wear-resistant coating.

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