Gas generating device capable of collecting gas in all directions
By designing a fin structure inside the gas collecting pipe in the gas generator, the problems of backflow and blockage in portable gas generators under vibration environment are solved, enabling normal gas output and preventing liquid leakage in various postures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HYDROGEN SOURCE INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-24
AI Technical Summary
Portable gas generators are prone to backflow and blockage of the exhaust port in environments of vibration and shaking, which prevents the solid-liquid reactants from being released normally.
Design an omnidirectional gas generator with multiple fins inside the gas collecting pipe. The fins have ventilation gaps with the inner wall and maintain gas flow even when the device is inverted or shaking. The fin design prevents liquid backflow, and the end of the gas collecting pipe is higher than the liquid surface.
Maintaining normal gas output under various orientations and preventing liquid backflow improves the safety and applicability of the device, ensuring smooth gas discharge.
Smart Images

Figure CN224156840U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of gas generating devices, specifically to an omnidirectional gas generating device. Background Technology
[0002] With the development of demand, portable gas generators that utilize the reaction of solid and liquid reactants to produce gas are becoming increasingly popular and widely used.
[0003] Most portable gas generators have strict requirements for usage, such as not being able to be tilted, being prone to backflow of solid-liquid reactants, and being prone to clogging the vent. For example, solid-liquid reactants are prone to backflow in environments with vibration or shaking. Utility Model Content
[0004] In view of the deficiencies in the prior art, this utility model provides an omnidirectional gas generating device that can normally release gas when tilted and can prevent backflow of solid-liquid reactants.
[0005] The present invention provides a technical solution as follows: an omnidirectional gas generating device, characterized in that it includes a tank, a cover, and a gas collecting assembly. The cover is disposed at the opening of the tank; the gas collecting assembly includes a gas collecting pipe, which is fixed to the cover. The first end of the gas collecting pipe extends toward the depth of the tank, and the second end is connected to the top of the cover. An exhaust nozzle connected to the second end of the gas collecting pipe is disposed on the outside of the cover. Multiple fins are spaced apart inside the gas collecting pipe, and a ventilation gap is left between each fin and the inner wall of the gas collecting pipe.
[0006] The beneficial effects of the above technical solution are as follows: the gas collection component can output gas normally under various conditions such as shaking, inversion, and horizontal placement, without leaking liquid. The fins, while ensuring normal gas output, can also block liquid and allow it to flow back into the tank.
[0007] Furthermore, multiple fins are distributed from bottom to top along the air collection pipe, and the ventilation gaps corresponding to adjacent fins are staggered.
[0008] Furthermore, the first end of the gas collecting pipe is higher than the liquid level inside the tank after the tank is inverted.
[0009] Furthermore, the lower edge of the gas collecting pipe is higher than the liquid level inside the tank when the tank is placed horizontally.
[0010] Furthermore, the fins are tilted downwards.
[0011] Furthermore, the tip of the fin is close to the bottom of the previous adjacent fin.
[0012] Furthermore, a filter element may be installed inside the gas collection pipe, and the filter element is located near the top of the cover. Attached Figure Description
[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0014] Figure 1 This is a schematic diagram of the upright use of an embodiment of the present utility model;
[0015] Figure 2 This is a schematic diagram of the horizontal placement of this utility model embodiment;
[0016] Figure 3 This is a schematic diagram of the inverted use of an embodiment of the present invention;
[0017] Figure 4 This is a schematic diagram illustrating the use of this utility model in a bumpy state according to an embodiment.
[0018] Reference numerals: tank body 100, reaction liquid 110, cover body 200, gas collecting pipe 300, fins 310, ventilation gap 311, filter element 320, exhaust nozzle 330. Detailed Implementation
[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.
[0020] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.
[0021] like Figure 1-4As shown, this embodiment provides an omnidirectional gas generating device, including a tank 100, a cover 200, and a gas collecting assembly. The cover 200 is disposed at the opening of the tank 100. A reaction liquid 110 is disposed inside the tank 100, and a reaction solid is sealed inside the cover 200. When gas is needed, the reaction solid inside the cover 200 is added into the reaction liquid 110. The gas generated by the reaction is discharged to the outside of the tank 100 through the gas collecting assembly. The cover 200 and the tank 100 are sealed together, ensuring that the gas generated during the reaction can only be discharged through the gas collecting assembly, preventing leakage. The gas collection assembly includes a gas collection pipe 300, which is fixed to the cover 200. The first end of the gas collection pipe 300 extends towards the depth of the tank 100, and the second end connects to the top of the cover 200. An exhaust nozzle 330, connected to the second end of the gas collection pipe 300, is provided on the outside of the cover 200. Multiple fins 310 are spaced apart inside the gas collection pipe 300, with a ventilation gap 311 between each fin 310 and the inner wall of the gas collection pipe 300. The gas collection pipe 300 can be a single pipe, multiple pipe segments axially spliced together, or multiple pipes arranged in parallel.
[0022] Furthermore, when the tank 100 is placed normally, one end of the gas collecting pipe 300 is spaced from the liquid surface inside the tank 100 to ensure that the gas can smoothly enter the gas collecting pipe 300.
[0023] The gas collection assembly is designed to allow gas to pass through normally under various conditions, including shaking, inversion, and horizontal placement, without leaking liquid. The fins 310, while ensuring normal gas passage, also block liquid flow and direct it back into the tank 100.
[0024] In some embodiments, multiple fins 310 are distributed from bottom to top along the gas collecting pipe 300, and the ventilation gaps 311 corresponding to adjacent fins 310 are staggered. The staggered ventilation gaps 311 prevent moisture entering the gas collecting pipe 300 from directly passing through two fins 310, and the overall passage path is serpentine. This design makes it more difficult for moisture to pass through the gas collecting pipe 300 and makes it easier for it to fall back into the tank 100.
[0025] In some embodiments, the first end of the gas collecting pipe 300 is higher than the liquid level inside the tank 100 after the tank 100 is inverted. When the tank 100 is inverted, the liquid inside the tank 100 will concentrate at one end of the cover 200. If the liquid level at this time does not exceed the gas collecting pipe 300, the liquid will flow into the gas collecting pipe 300 and out from the exhaust port 330. Therefore, setting the first end of the gas collecting pipe 300 higher than the liquid level after inversion prevents the liquid inside the tank 100 from flowing directly out of the gas collecting pipe 300, increasing safety and applicability. Furthermore, the gas produced by the reaction can still be discharged from the gas collecting pipe 300 after inversion.
[0026] In some embodiments, the lower edge of the gas collecting pipe 300 is higher than the liquid level inside the tank 100 when the tank 100 is placed horizontally. In addition to the inverted case, there is also a case where the tank 100 is tilted and horizontal during use. In this case, the liquid level will also be lower than the gas collecting pipe 300. The liquid inside the tank 100 will still not come into contact with the gas collecting pipe 300, so there will be no leakage.
[0027] In some embodiments, the fins 310 are inclined downwards. The downward-inclined fins 310 facilitate the sliding of liquid adhering to them back into the tank 100. Furthermore, the cross-section of the gas collecting pipe 300 can be circular, elliptical, rectangular, or other shapes. When the gas collecting pipe 300 has a square cross-section, the venting gap 311 can be rectangular. When the gas collecting pipe 300 has a circular cross-section, the venting gap 311 can be crescent-shaped.
[0028] Furthermore, the tip of the fin 310 is close to the bottom of the adjacent fin 310, meaning that multiple fins 310 are arranged in a staggered manner, allowing liquid that slides down to the bottom of one fin 310 to drip onto the top of the next fin 310. Preferably, there are five fins 310, arranged parallel to each other with a fin 310 spaced apart. That is, if the fins 310 are numbered 1-5 from bottom to top, fins 310 numbered 1, 3, and 5 are parallel to each other, while fins 310 numbered 2 and 4 are parallel to each other. The angle between fins 1 and 2 is preferably 60 degrees.
[0029] Furthermore, if the gas generator is used while in motion, in an environment of vibration and shaking, water droplets generated by the fluctuation of the reaction liquid 110 in the tank 100, or occasionally briefly entering the gas collecting pipe 300, can still be blocked and returned to the tank 100 by the multi-layered, intersecting fins 310 installed in the gas collecting pipe 300, thus allowing normal gas output.
[0030] In some embodiments, a filter element 320 is also provided inside the gas collecting pipe 300, and the filter element 320 is disposed near the top of the cover 200. The filter element 320 can filter impurities, making the gas generated by the gas generating device purer.
[0031] In the description of this application, it should be understood that the terminology used is for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.
[0032] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail so as not to obscure the understanding of this specification.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.
Claims
1. A gas generating device for omnidirectional gas collection, characterized in that, include: Tank body (100); A cover (200) is disposed at the opening of the tank (100); The gas collection assembly includes a gas collection pipe (300) fixed to the cover (200). The first end of the gas collection pipe (300) extends toward the depth of the tank (100), and the second end is connected to the top of the cover (200). An exhaust nozzle (330) connected to the second end of the gas collection pipe (300) is provided on the outside of the cover (200). A plurality of fins (310) are spaced apart inside the gas collection pipe (300), and a ventilation gap (311) is left between each fin (310) and the inner wall of the gas collection pipe (300).
2. The omnidirectional gas generating device according to claim 1, characterized in that, Multiple fins (310) are distributed from bottom to top along the air collection pipe (300), and the ventilation gaps (311) corresponding to adjacent fins (310) are staggered.
3. The omnidirectional gas generating device according to claim 1, characterized in that, The first end of the gas collecting pipe (300) is higher than the liquid level inside the tank (100) after the tank (100) is inverted.
4. The omnidirectional gas generating device according to claim 1, characterized in that, The lower edge of the gas collecting pipe (300) is higher than the liquid level inside the tank (100) when the tank (100) is placed horizontally.
5. A gas generating device for omnidirectional gas collection according to claim 1 or 2, characterized in that, The fins (310) are tilted downwards.
6. The omnidirectional gas generating device according to claim 5, characterized in that, The top of the fin (310) is close to the bottom of the previous adjacent fin (310).
7. The omnidirectional gas generating device according to claim 1, characterized in that, The gas collecting pipe (300) is also provided with a filter element (320), which is located near the top of the cover (200).