Fire outlet device for gas lighter

Abstract

The utility model provides a fire outlet device for a gas lighter, which is characterized in that a gas outlet device is a metal gas outlet pipe which passes through a fire outlet in the shape of a Chinese character'hui '; a first metal gas outlet pipe of the gas outlet device sequentially comprises a gas injection port arranged in a shell and connected with a gas pipe, a gas guide section extending from the gas injection port to a fire outlet, a preheating section crossing the fire outlet, a downward rotation section spirally extending downwards, and a gas outlet section penetrating through the downward rotation section from the tail of the downward rotation section and extending upwards. A gas outlet exposed out of the fire outlet is formed in the free end of the tail end of the gas outlet section, the fuel gas is led to the gas outlet device through the gas pipe under the control of the gas outlet valve to form flames at the fire outlet, and the fuel gas passes through the preheating section in the gas outlet device, is preheated and gasified through heat conduction and then is led to the gas outlet to be combusted. The gasified fuel gas in the preheating section passing through the fire outlet is preheated, so that the fuel gas reaching the fire outlet is more easily ignited and is completely combusted.

Description

Technical Field

[0001] The utility model relates to a lighter, in particular to a fire outlet device of a gas lighter. Background Art

[0002] Generally, gas lighters can be classified into two categories in terms of function: open-flame lighters and windproof lighters. An open-flame lighter is one in which gas burns directly in the air. Its disadvantages are that the flame is small and easy to extinguish, while its advantages are simple structure and low cost. The disadvantages of existing windproof lighters are complex structure and high cost, and the advantage is that the flame is not easily extinguished by wind. Generally, consumers usually choose windproof lighters as the first choice. However, for currently available windproof lighters, when it comes to lighting relatively difficult-to-light tobacco, such as cigars, it is found that it is not easy to light with ordinary windproof lighters. Therefore, multi-flame windproof lighters have emerged, which can produce multiple flames, but their cost is relatively high and the structure is relatively complex. And open-flame lighters are easily blown out. In order to make some of them have a certain windproof property, some manufacturers will adopt a windproof sleeve around the periphery above the fire outlet on the shell. First of all, the windproof sleeve is easy to scald users around the flame periphery. Secondly, the windproof sleeve increases the cost and reduces the aesthetics of the lighter. At the same time, the windproof sleeve easily makes the flame further shrink. Moreover, for gas lighters, when the fuel is transported through the gas pipe, due to the low temperature, it is easy to cause ignition failure or incomplete combustion, and the generated flame is red. Summary of the Invention

[0003] The utility model provides a fire outlet device for a gas lighter that is easy to ignite at the fire outlet, can completely burn to produce a thick and non-extinguishable flame.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions: A fire outlet device for a gas lighter, the gas lighter includes a shell with a fire outlet, a gas storage tank arranged in the shell, an air outlet valve placed on the gas storage tank, a spark generating device near the air outlet, and an air outlet device that is conducted through a gas pipe to the air outlet valve and exposes the shell at the fire outlet position. The air outlet device is a metal air outlet pipe that winds around the fire outlet in a loop. That is, the metal air outlet pipe of the air outlet device is connected in sequence including an air injection port placed in the shell and connected to the gas pipe, a gas guiding section extending from the air injection port to the fire outlet, a preheating section straddling the fire outlet, a downward spiral section spiraling downward, and an air outlet section extending upward by passing back through the inside of the downward spiral section from the end of the downward spiral section. The free end of the end of the air outlet section forms an air outlet that exposes at the fire outlet. The fuel gas forms a flame at the fire outlet under the control of the air outlet valve and passes through the air outlet device through the gas pipe. The fuel gas first passes through the preheating section in the air outlet device, is preheated and vaporized by heat conduction, and then leads to the air outlet for combustion.

[0005] As an improvement: Part or all of the downward spiral section is exposed at the fire outlet, and the exposed downward spiral section is formed by spiraling downward with a spacing.

[0006] As an improvement, a number of first gas expansion micro-grooves penetrating the pipe wall are formed on the outer wall of the downward spiral section exposed at the flame outlet.

[0007] As an improvement, a number of second gas expansion micro-grooves penetrating the pipe wall are provided on the peripheral wall of the gas outlet section adjacent to the gas outlet, and the preheating section is higher than the second gas expansion micro-grooves in height.

[0008] As an improvement, the gas outlet section extends upward along the central axis of the downward spiral section.

[0009] The beneficial effects provided by the present utility model are as follows: The preheating section wound around the flame outlet is heated by the flame generated by ignition, that is, the preheating section preheats the vaporized fuel gas passing through the preheating section through heat conduction, so that when the fuel gas reaches the flame outlet and diffuses outward to mix with air, it is easier to be ignited and burned completely. Compared with the existing open-flame gas lighter that generates a red flame, the lighter adopting this solution can generate a blue flame, which is more beautiful. Moreover, the flame outlet device has a simple structure and is easy to implement, and has a certain versatility, that is, it can also be applied to ignition guns, etc. In addition, the spiral downward spiral section can protect the root of the wick and has the function of an invisible windbreak wall, with strong wind resistance.

[0010] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings

[0011] Figure 1 FIG. is a schematic structural diagram of an embodiment of the flame outlet device of the present utility model for a gas lighter.

[0012] Figure 2 is Figure 1 a schematic structural diagram of the flame outlet device in Detailed Embodiment

[0013] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In the description of the present utility model, it should be understood that the terms "connected", "connected to", "fixed", etc. used in the present utility model should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or a welded connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0014] Such as Figure 1 , Figure 2As shown, the utility model is an embodiment of a firing device for a gas lighter, the gas lighter comprises a shell 1 with a firing port 11, an air storage box 2 arranged in the shell, an air outlet valve 3 placed on the air storage box 2, a spark generating device 9 arranged near the air outlet, and an air outlet device which is connected to the air outlet valve through an air pipe 4 and exposed from the shell at the firing port. The air outlet device is a metal air outlet pipe 5 which is zigzag around the firing port, that is, the metal air outlet pipe of the air outlet device is connected in sequence and comprises an air injection port connected to the air pipe arranged in the shell, an air guide section 51 extending from the air injection port to the firing port, a preheating section 52 crossing the firing port, a downward spiral section 53 extending in a spiral downward direction, and an air outlet section 54 extending upward from the end of the downward spiral section 53 back through the downward spiral section. The air outlet section extends upward along the central axis of the downward spiral section, so that there is a spacing space between the air outlet section and the downward spiral section, which does not affect the diffusion and mixing of the gas at the air outlet and is more convenient for bending processing. The free end of the outlet section 54 forms an outlet 55 exposed at the fire outlet. The fuel gas is passed through the gas pipe to the outlet device under the control of the outlet valve to form a flame at the fire outlet. The fuel gas is first preheated and gasified by heat conduction in the preheating section in the outlet device and then passed to the outlet for combustion. In order to make the flame core thicker, a plurality of third gas expansion grooves are provided on the peripheral wall of the outlet section at the outlet position of the gas outlet in this embodiment, and the spacing between the third gas expansion grooves is set on the peripheral wall of the pipe. The third gas expansion groove 61 of this embodiment is an oblique groove on the peripheral wall of the pipe mouth, and of course it can also be a curved groove, so as to improve the wind resistance, thicken the root of the fire core, and lengthen the root of the flame. Of course, a ring piece (not shown in the figure) can also be added at the end of the gas outlet section. The ring piece has a large number of micropores on its peripheral wall. The micropores have a certain slow-release diffusion property for the fuel gas, which lengthens the root of the flame and protects the flame core. When the flame is blown, the micropores also serve as temporary gas storage to keep the flame core from being extinguished, further improving wind resistance and resistance to being blown out. The ring pieces set at intervals ensure the gas expansion of the third gas expansion slot and lengthen the length of the slow-release section, thereby lengthening and thickening the flame.

[0015] A plurality of second gas expansion microgrooves 57 penetrating the tube wall are provided on the peripheral wall of the gas outlet section adjacent to the gas outlet. The preheating section is higher than the second gas expansion microgrooves in height, and the flame root is lowered to the position of the second gas expansion microgrooves. The preheating section is more easily covered by the flame and preheated, and the gas fuel in the gas outlet device is preheated, so that the gas fuel output outward can be ignited faster and easier.

[0016] Part of the downward spiral section 53 is exposed at the flame outlet. The exposed downward spiral section 53 is formed by spiraling downward with a pitch, enabling better mixing of the fuel gas and air. Of course, the entire downward spiral section can also be exposed at the flame outlet, which can be set as required according to the position space of the flame outlet. A number of first gas expansion micro-grooves 56 penetrating the pipe wall are formed on the outer pipe wall of the downward spiral section 53 exposed at the flame outlet. The first gas expansion micro-grooves can lower the position of the flame root, lengthen the preheating section, and make the flame thicker. Of course, the aperture of the first gas expansion micro-grooves 56 is a micro-hole design, and the flame combustion at this position is generated by the flame at the gas outlet for ignition.

[0017] Although the present utility model has been disclosed above in specific embodiments, it is not intended to limit the present utility model. Any person skilled in the art can still make some modifications and refinements without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be determined by the scope defined in the appended claims.

Claims

1. A ignition device for a gas lighter, the gas lighter comprising a housing (1) with a ignition outlet, a gas storage box (2) disposed in the housing for storing fuel gas, an outlet valve (3) disposed on the gas storage box (2), a spark generating device (9) disposed near the ignition outlet, and an outlet device connected to the outlet valve through an air pipe (4) and exposed from the housing at the ignition outlet, characterized in that: The gas outlet device is a metal gas outlet pipe (5) that meanders around the fire outlet, that is, the metal gas outlet pipe of the gas outlet device is connected to the gas injection port connected to the gas pipe in the shell, a gas guide section (51) extending from the gas injection port to the fire outlet, a preheating section (52) crossing the fire outlet, a downward spiral section (53) extending in a spiral downward, and a gas outlet section (54) extending upward from the end of the downward spiral section (53) through the downward spiral section. The free end of the gas outlet section (54) forms a gas outlet (55) exposed at the fire outlet. The fuel gas is passed through the gas pipe to the gas outlet device under the control of the gas outlet valve to form a flame at the fire outlet. The fuel gas first passes through the preheating section in the gas outlet device to be preheated and gasified by heat conduction before passing to the gas outlet for combustion.

2. The ignition device for a gas lighter according to claim 1, characterized in that: The downward spiral section (53) is partially or completely exposed at the fire outlet, and the exposed downward spiral section (53) is formed by spiraling downward with a spacing.

3. The ignition device for a gas lighter according to claim 2, characterized in that: A plurality of first gas expansion micro grooves (56) penetrating the tube wall are formed on the tube wall of the downward spiral section (53) exposed at the fire outlet and facing outward.

4. The ignition device for a gas lighter according to claim 1, 2 or 3, characterized in that: A plurality of second gas expansion micro grooves (57) penetrating the tube wall are provided on the peripheral wall of the gas outlet section adjacent to the gas outlet, and the height of the preheating section is higher than that of the second gas expansion micro grooves.

5. The ignition device for a gas lighter according to claim 1, 2 or 3, characterized in that: The air outlet section extends upward along the central axis of the downward rotating section.

6. The ignition device for a gas lighter according to claim 4, characterized in that: The air outlet section extends upward along the central axis of the downward rotating section.

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