A pressure fuel outlet valve mechanism

Abstract

The utility model discloses a pressure fuel gas outlet valve mechanism, including the valve body, the valve body includes the air inlet interface of connecting pressure fuel container and the gas outlet spout of spouting fuel gas, be equipped with first gas passage and second gas passage between air inlet interface and gas outlet spout, and fuel gas of air inlet interface can reach gas outlet spout through first gas passage or second gas passage, be equipped with regulating valve on first gas passage, be equipped with straight -through valve on second gas passage. This gas outlet valve mechanism can be compatible with stable gas outlet and instantaneous large -amount gas outlet two modes and carry out the switching.

Description

Technical Field

[0001] This utility model relates to a powder combustion ejection device capable of producing a cold light fireworks effect. In particular, it relates to the gas outlet valve of pressurized fuel. Background Technology

[0002] Powder combustion ejection devices that ignite and spray combustible powder can create the effect of cold light fireworks, and are widely used due to their high safety.

[0003] In the early stages of development, we have developed a series of devices capable of producing the aforementioned fireworks effects. See the following Chinese patent document: CN208968375U (authorization announcement number) disclosed on 2019-06-11, a powder combustion ejection device that simulates cold light fireworks effects.

[0004] CN 221505822U (Authorization Announcement No.) discloses a multi-flame color flaming powder combustion and ejection device on 2024-08-09.

[0005] CN 221945035U (Authorization Announcement No.) discloses a handheld fireworks display device based on powder combustion and ejection on 2024-11-01.

[0006] CN 222068500U (Authorization Announcement No.) discloses a pyrotechnic device based on powder combustion and ejection on 2024-11-26.

[0007] A combustible powder cold light fireworks effect generating device was disclosed in CN120101587A on 2025-06-06.

[0008] A device for generating cold light fireworks effect from combustible powder that is ignited by contact was disclosed in CN120176497A on 2025-06-20.

[0009] A fireworks product that facilitates the creation of subtitle fireworks effects was disclosed in publication number CN120160495A on 2025-06-17.

[0010] The powder combustion ejection device mimics the effect of fireworks. Fireworks can be categorized into two types: instantaneous eruptions and continuous eruptions. The drawback of existing technology is that the pressurized fuel's outlet valve includes an inlet connecting the pressurized fuel container and an outlet for ejecting fuel gas. The fuel gas enters the valve body through the inlet and exits through the outlet, creating a continuous eruption effect; however, it only offers one stable gas output mode. While the gas output can be adjusted in this mode, the adjustment is not timely enough to support an instantaneous eruption effect, and it cannot accommodate and switch between stable and instantaneous high-volume gas output modes. This limits the entertainment value of the powder combustion ejection device. Utility Model Content

[0011] To address the aforementioned drawbacks, the technical problem this invention aims to solve is to provide a pressurized fuel outlet valve mechanism capable of accommodating and switching between two modes: stable outlet and instantaneous large-volume outlet. The technical solution adopted by this invention is a pressurized fuel outlet valve mechanism, comprising a valve body. The valve body includes an inlet port connected to a pressurized fuel container and an outlet nozzle for ejecting fuel gas. The mechanism is characterized in that a first air passage and a second air passage are provided between the inlet port and the outlet nozzle, allowing the fuel gas from the inlet port to reach the outlet nozzle through either the first or second air passage. A regulating valve is provided on the first air passage, and a straight-through valve is provided on the second air passage.

[0012] The beneficial effect of this utility model is that, by adopting the above scheme, after the air inlet is connected to the pressure fuel container, the fuel in the container reaches the air inlet. At this time, the operator can first turn the regulating valve knob to make the fuel gas reach the outlet nozzle through the first air passage and continuously spray out a small airflow for ignition.

[0013] When a rapid increase in flame is required, pressing the direct-flow valve allows the fuel gas to instantly pass through the second air passage and reach the outlet nozzle for ejection. Releasing the button stops the ejection (instantaneous large-volume gas output mode), creating an instantaneous ejection effect.

[0014] If a rapid increase in flame is not required, you can choose to continue turning the regulating valve knob to gradually increase the airflow in the first air passage to the required level (stable air output mode): to create a continuous jet effect.

[0015] Therefore, the gas outlet valve mechanism can be compatible with and switch between two modes: stable gas outlet and instantaneous large-volume gas outlet.

[0016] In one embodiment, the first or second air passage is a bent air passage, which consists of a straight passage and an oblique passage. The inlet port of the oblique passage is located inside the straight passage, and the inlet port of the oblique passage is close to the outer port of the straight passage. A straight-through valve is installed in the straight passage, and the straight passage and the oblique passage are connected by the straight-through valve. The bent air passage facilitates the machining of the valve body passage.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time.

[0018] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. 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 invention pertains. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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 a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the internal structure of Example 1. Figure 1 (A regulating valve and a straight-through valve were installed).

[0025] Figure 2 This is a schematic diagram of the internal structure of Example 1. Figure 2 (No regulating valve or straight-through valve is installed; only the air passage configuration is shown.)

[0026] Figure 3 This is a schematic diagram of the internal structure of Example 2. Figure 1 (A regulating valve and a straight-through valve were installed).

[0027] Figure 4 This is a schematic diagram of the internal structure of Example 2. Figure 2 (No regulating valve or straight-through valve is installed; only the air passage configuration is shown.)

[0028] Figure 5 This is a schematic diagram of the internal structure of Example 3.

[0029] Figure 6 This is a schematic diagram of the external structure of Example 4. Figure 1 .

[0030] Figure 7 for Figure 6 A partial cross-sectional structural diagram.

[0031] Figure 8 This is a schematic diagram of the first airway structure in Example 4.

[0032] Figure 9 This is a schematic diagram of the external structure of Example 4. Figure 2 .

[0033] Figure 10 for Figure 9 A partial cross-sectional structural diagram.

[0034] Figure 11 This is a schematic diagram of the second airway structure in Example 4. Detailed Implementation

[0035] Example 1: See Appendix Figure 1-2 This illustrates a specific structure of the present invention. The pressurized fuel outlet valve mechanism includes a valve body 1, on which an inlet port 2 and an outlet nozzle 3 are provided. The inlet port 2 is connected to a pressurized fuel container (not shown in the figure, such as a propane or butane pressurized gas tank). Fuel gas is ejected from the outlet nozzle 3. A first air passage 4 and a second air passage 5 are provided in parallel between the inlet port 2 and the outlet nozzle 3. After the inlet port 2 is connected to the pressurized fuel container, the fuel in the container enters the inlet port 2, and the fuel gas from the inlet port 2 can reach the outlet nozzle 3 through the first air passage 4 or the second air passage 5. A regulating valve 6 is provided on the first air passage 4, and a straight-through valve 7 is provided on the second air passage 5.

[0036] The regulating valve 6 (also known as a plug valve) can be purchased from the market under the trade name "regulating valve" or "plug valve". Its working principle is to adjust the gas flow by rotating a knob to change the position of the valve core. The degree of alignment between the gas passage and the valve core interface when the knob is rotated determines the gas throughput. The general adjustment logic is: rotating the knob clockwise increases the alignment and increases the gas output; rotating it counterclockwise decreases the alignment and reduces the flow. Once rotated to the correct position, a stable airflow is formed.

[0037] The straight-through valve 7 (also known as a push-button valve) can be purchased in the market under the trade name "straight-through valve" or "push-button valve". Its working principle is mechanical triggering: pressing the button directly pushes the valve core through a spring or lever mechanism, instantly opening / closing the airflow channel. The valve core is mostly designed for linear motion; when pressed, it quickly disengages from the valve seat, allowing gas to flow directly from the inlet to the outlet; after releasing, the spring returns to its original position, closing the channel, resulting in a rapid response.

[0038] Using the above scheme, after the air inlet 2 is connected to the pressure fuel container, the fuel in the container enters the air inlet 2. At this time, the operator can first turn the knob of the regulating valve 6 to make the fuel gas pass through the first air passage 4 to reach the air outlet 3, and maintain a small airflow to facilitate ignition.

[0039] (Instantaneous large-volume gas output mode) When it is necessary to rapidly increase the flame, the operator can press the button of the straight-through valve 7 to make the fuel gas instantly pass through the second gas channel 5 to the gas outlet 3 and be ejected. Releasing the button will stop the instantaneous ejection effect.

[0040] (Stable air output mode) If it is not necessary to rapidly increase the flame, the operator can also choose to continue turning the regulating valve 6 knob to gradually increase the airflow of the first air passage 4 to the required level, forming a continuous spray effect.

[0041] Therefore, the exhaust valve mechanism can be compatible with and switch between two modes: stable exhaust and instantaneous large-volume exhaust.

[0042] In the example, the second air passage 5 is a bent air passage, which consists of a straight passage 51 and an oblique passage 52. The air inlet port 53 of the oblique passage 52 is located inside the straight passage 51, and the air inlet port 53 is close to the outer port 54 of the straight passage 51 (i.e., the port located outside the valve body 1). A straight-through valve 7 is installed inside the straight passage 51, and the straight passage 51 and the air inlet port 53 of the oblique passage 52 are connected by the straight-through valve 7 (i.e., when the button of the straight-through valve 7 is pressed, the airflow in the straight passage 51 enters the oblique passage 52 from the air inlet port 53, and the airflow is cut off when the button is released). The bent air passage facilitates the processing of the valve body passages: for example... Figure 2 As shown, when machining the inclined channel 52, drilling can be performed from the outer port 54 of the straight channel 51 in the direction of the arrow. This avoids the trouble of opening a separate machining port and then blocking it.

[0043] The pressure fuel outlet valve mechanism can be applied to powder combustion injection devices. In this case, a combustible powder hopper and an ignition mechanism should be added. Generally, a hopper is installed on the external pipe of the outlet nozzle 3. The hopper outlet is connected to the external pipe, allowing the fuel gas and combustible powder to mix and form a mixed gas flow. This mixed gas flow is then ignited by an ignition mechanism (such as an electronic igniter or a piezoelectric igniter). These are existing technologies and will not be elaborated further.

[0044] Example 2: See Appendix Figure 2-3 The difference from Embodiment 1 is that, in this example, the orientation of the air outlet 201 is opposite to that in Embodiment 1; in Embodiment 1, it faces left, while in this example, it faces right. The second air passage 205 intersects with the first air passage 204. The second air passage 205 connects to the air outlet 201 through the gap 202 between the valve core 203 of the regulating valve 6 and the air passage. Even when the regulating valve 6 is closed (the valve core 202 completely blocks the second air passage), the gap 202 still exists. Therefore, the connection of the second air passage 205 is not affected by the opening or closing of the first air passage 204. In the example, as... Figure 4 As shown, the second airway is also a tortuous airway composed of a straight channel 207 and an oblique channel 206, which is the same as in Example 1 and will not be described again.

[0045] Example 3: See Appendix Figure 5Similar to Embodiment 2, it also includes an air inlet 302, an air outlet 303, a regulating valve 304 on the first air passage, and a straight-through valve 307 on the second air passage. The second air passage intersects with the first air passage. The air inlet 302 shows a pin 301 for connecting to the pressurized fuel container. When the air inlet 302 is connected to the pressurized fuel container by means of threads or snap-fit, the pin 301 is used to open the pressurized fuel container, allowing fuel in the container to enter the air inlet 302.

[0046] The difference from Embodiment 2 is that, in this example, the air passage 305 directly connected to the air outlet 303 is longer, which allows the oblique passage 306 to be shortened, thereby reducing the processing difficulty.

[0047] Example 4: See Appendix Figure 6-11 This describes a specific structure of the present invention. The valve body is provided with an inlet port 402 and an outlet port 403. The inlet port 402 is connected to a pressurized fuel container. The outlet port 403 ejects fuel gas. A first air passage 405 and a second air passage 406 are provided in parallel between the inlet port 402 and the outlet port 403. After the inlet port 402 is connected to the pressurized fuel container, the fuel in the container enters the inlet port 402, and the fuel gas from the inlet port 402 can reach the outlet port 403 through the first air passage 405 or the second air passage 406. A regulating valve 404 is provided on the first air passage 405, and a straight-through valve 401 is provided on the second air passage 406. The end of the first air passage 405 is connected to the outlet port 403 through an end hole 407. The machined opening of the machined passage is sealed with a bolt 408.

[0048] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Obviously, many modifications and variations can be made based on the content of this specification. This specification selects and describes these embodiments in detail with reference to the accompanying drawings to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is limited only to the claims and their full scope and equivalents, and not to the specific embodiments disclosed.

Claims

1. A pressurized fuel outlet valve mechanism, comprising a valve body, the valve body including an inlet port connected to a pressurized fuel container and an outlet port for ejecting fuel gas, characterized in that, The air inlet and the air outlet are provided with a first air passage and a second air passage. The fuel gas in the air inlet can reach the air outlet through the first air passage or the second air passage. The first air passage is provided with a regulating valve, and the second air passage is provided with a straight-through valve.

2. The pressure fuel outlet valve mechanism as described in claim 1, characterized in that, The first or second air passage is a bent air passage, which consists of a straight passage and an oblique passage. The air inlet of the oblique passage is located inside the straight passage and is close to the outer port of the straight passage. A straight-through valve is installed in the straight passage, and the straight passage and the oblique passage are connected by the straight-through valve.

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