Lighter and gasification furnace thereof

Abstract

The utility model relates to a gasification furnace of a lighter, which comprises an air mixing pipe and an air outlet part, the air mixing pipe and the air outlet part are integrally formed, and an air outlet hole communicated with the air mixing pipe, a main air outlet hole of the air outlet part and an air outlet gap of a first groove are formed between the upper end of the air mixing pipe and the lower end of the air outlet part. The utility model further relates to a lighter with the gasification furnace. According to the scheme, the production and assembly procedures of the lighter can be simplified, and the reliability of the gasifier connecting structure can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of lighters, in particular to a lighter and its gasifier. Background Art

[0002] A gasifier disclosed in the Chinese utility model patent with the publication number CN218209554U, the upper sleeve, the lower sleeve and the air mixing pipe are three independent components. During assembly, the lower sleeve and the upper sleeve are fitted by inlaying, and then installed at the inner bottom surface of the ceramic cup. The lower end of the lower sleeve extends out of the ceramic cup and is connected to the air mixing pipe. The above solution has the following deficiencies: (1) Since the upper sleeve, the lower sleeve and the air mixing pipe are independent of each other, they need to be independently produced and assembled during production, and the production and assembly processes are complex; (2) In the above assembly method of the upper sleeve and the lower sleeve, in actual use, after continuous burning for a period of time, such as 1 minute, the upper sleeve is likely to fall off from the lower sleeve, thus affecting the normal use of the gasifier. Summary of the Invention

[0003] In order to solve the above problems, the purpose of the utility model is to provide a lighter and its gasifier, which can simplify the production and assembly processes of the lighter and ensure the reliability of the connection structure of the gasifier.

[0004] One of the purposes of the present application is to provide a gasifier of a lighter, which includes an air mixing pipe and an air outlet part. The air mixing pipe is located below the air outlet part and the air mixing pipe is coaxially arranged with the air outlet part; a main air outlet hole is provided in the middle of the air outlet part, and a plurality of first grooves distributed along the circumferential direction are formed by inward depression on the outer side surface of the air outlet part. The lower end of the first groove extends to the lower end surface of the air outlet part; the air mixing pipe and the air outlet part are integrally formed, and an air outlet gap communicating with the air outlet hole of the air mixing pipe, the main air outlet hole of the air outlet part and the first groove is formed between the upper end of the air mixing pipe and the lower end of the air outlet part. In this solution, the air mixing pipe and the air outlet part are set as an integral structure, and the situation that the upper sleeve falls off due to heat during use will not occur; and in the air outlet gap between the air outlet part and the air mixing pipe, the air outlet hole of the air mixing pipe, the main air outlet hole of the air outlet part and the first groove of the air outlet part are communicated. Since the air mixing pipe and the air outlet part are coaxially arranged, most of the gas flowing out of the air outlet hole of the air mixing pipe enters the main air outlet hole of the air outlet part, and part of the gas flows upward through the air outlet gap via the first groove, making the flame of the air outlet part straighter and more stable.

[0005] Preferably, it includes a gas gathering ring. The gas gathering ring is located at the upper end of the air outlet part and the upper end surface of the gas gathering ring is flush with the upper end surface of the air outlet part.

[0006] Optionally, the air-gathering ring and the air outlet part are integrally formed. The air-gathering ring is provided with a plurality of small air holes corresponding to the first grooves, and each small air hole is communicated with its corresponding first groove. Adopting the setting method of integrally forming the air-gathering ring and the air outlet part is beneficial to simplifying the assembly procedure.

[0007] Preferably, the air-gathering ring and the air outlet part are independent of each other. The inner surface of the air-gathering ring is pressed against the outer peripheral surface of the upper part of the air outlet part, and the upper end of the first groove extends upward to the upper end surface of the air outlet part. The air-gathering ring and the air outlet part are independent of each other and are manufactured separately. Compared with the setting method of integrally forming the air-gathering ring and the air outlet part, which has high requirements for the demolding accuracy control of the air-gathering ring and the small air hole parts, the manufacturing method is simple.

[0008] Preferably, the upper part of the air outlet part is reduced in diameter to form a first step on the outer peripheral wall of the air outlet part. The air-gathering ring is inserted from the upper part until its bottom abuts against the first step, and the inner surface of the air-gathering ring is pressed against the relatively smaller outer peripheral surface of the upper part of the air outlet part in the radial direction. The air-gathering ring is positioned by the first step, and at the same time, the air-gathering ring and the air outlet part are in interference fit, and the connection method is reliable.

[0009] Preferably, one or more support steps are provided between the lower end of the air outlet part and the upper end of the air mixing pipe. The support steps define the air outlet holes communicating with the air mixing pipe, the main air outlet holes of the air outlet part, and the air outlet gaps of the first grooves; the support steps are integrally formed with the air mixing pipe and the air outlet part. By raising the lower end surface of the air outlet part through the support steps, the air outlet gap formed between the lower end of the air outlet part and the upper end of the air mixing pipe can be used as a gas storage space. And since the air outlet gap communicates with the main air outlet holes of the air outlet part and the first grooves, most of the gas flowing out from the air outlet holes of the air mixing pipe can flow into the main air outlet holes after passing through the air outlet gap, and the remaining overflowing gas is evenly diffused to the circumferential multiple first grooves through the air outlet gap.

[0010] Preferably, the integrated structure of the air mixing pipe, the air outlet part and the support steps is formed by casting with two left and right mating left half-molds and right half-molds. Two support steps arranged in a counter-supporting manner are provided between the lower end of the air outlet part and the upper end of the air mixing pipe, and there is a gap between adjacent support steps. By using two left and right mating left half-molds and right half-molds as molds to cast the above integrated structure, the demolding is simple. And when the mold is arranged according to the above structure, the support steps are arranged as above, and the structure is simple and can realize its function.

[0011] Preferably, the lower end surface of the main air outlet hole of the air outlet part is located below the lower end surface of the first groove. With such a setting, the gas flowing upward from the air outlet hole of the lower air mixing pipe can collide with the lower end surface of the main air outlet hole and then more outwardly diffuse into the first grooves.

[0012] Optionally, an inclined surface that slopes from the middle to the periphery is formed at the lower end of the air outlet part, and the air outlet gap is formed by the slope of the inclined surface. Through this structure, the air outlet holes of the air mixing pipe, the main air outlet hole of the air outlet part, and the first groove of the air outlet part can also be connected.

[0013] Preferably, it further includes a porcelain cup and a sleeve. The bottom of the porcelain cup is provided with a mounting hole for the air outlet part to enter. A limiting edge is formed on the outer side wall of the air mixing pipe, and the outer diameter of the limiting edge is larger than the aperture of the mounting hole; the air outlet part is inserted into the porcelain cup from the bottom of the porcelain cup from bottom to top. After the air outlet part is installed in place, the limiting edge abuts against the lower end surface of the bottom of the porcelain cup. The sleeve is inserted from the upper part until its bottom abuts against the upper end surface of the bottom of the porcelain cup. The sleeve is pressed and fitted with the outer surface of the air outlet part, and the outer diameter of the sleeve is larger than the aperture of the mounting hole. In this structure, the sleeve is press-fitted, which can be installed in batches and has a simple structure; and on the one hand, the sleeve limits the porcelain cup from above, and on the other hand, it cooperates with the first groove of the air outlet part to form small air outlet holes on the air outlet part, so that the gas entering the first groove can overflow upward along the small air outlet holes.

[0014] Preferably, it further includes a porcelain cup and a sleeve. The bottom of the porcelain cup is provided with a mounting hole for the air outlet part to enter. A limiting edge is formed on the outer side wall of the air mixing pipe, and the outer diameter of the limiting edge is larger than the aperture of the mounting hole; the air outlet part is inserted into the porcelain cup from top to bottom, and the air mixing pipe extends downward from the mounting hole at the bottom of the porcelain cup. After the air outlet part is installed in place, the limiting edge abuts against the upper end surface of the bottom of the porcelain cup, and the engaging part is engaged on the outer wall of the air mixing pipe, and the engaging part abuts against the lower end surface of the bottom of the porcelain cup. The sleeve is inserted from the upper part until its bottom abuts against the upper end surface of the limiting edge, and the sleeve is pressed and fitted with the outer surface of the air outlet part. This solution is another installation structure, which is connected to the porcelain cup from above and below through the cooperation of the limiting edge and the engaging part, and the sleeve does not need to be in direct contact with the porcelain cup, so it is not easy to fall off due to heat.

[0015] Preferably, a clamping groove for the engaging part to be clamped is formed on the outer side wall of the air mixing pipe. By setting the clamping groove, the installation method of the engaging part is simple. The second object of the present invention is to provide a lighter, including the gasifier of a lighter as described in any one of the above.

[0016] Since the present invention adopts the above technical solutions, at least the air mixing pipe and the air outlet part are integrally arranged. Compared with the prior art, the lower sleeve structure is omitted, the production and assembly processes are simple, and because it is an integral structure, the air outlet part will not fall off even during long-term continuous ignition, and the structure is reliable. Description of the Drawings

[0017] Figure 1 It is an exploded view of the gasifier of Embodiment 1;

[0018] Figure 2Cross-sectional view of the gasifier of Example 1;

[0019] Figure 3 Schematic diagram of the integrated structure of the air mixing pipe, the gas outlet part and the gas gathering ring;

[0020] Figure 4 For Figure 3 Cross-sectional view;

[0021] Figure 5 Explosion diagram of the gasifier of Example 2;

[0022] Figure 6 Cross-sectional view of the gasifier of Example 2;

[0023] Figure 7 Explosion diagram of the gasifier of Example 4;

[0024] Figure 8 Cross-sectional view of the gasifier of Example 4.

[0025] Reference numerals:

[0026] Casing 1, porcelain cup 2, integral gasification fusion pipe 3, air mixing pipe 31, limiting edge 311, support step 312, gas outlet gap 313, installation cavity 314, gas outlet part 32, first groove 321, main gas outlet hole 322, gas gathering ring 33, microporous pressure increasing sheet 4, sealing ring 5, mesh sheet 6, end cap 7, engaging part 8. Detailed implementation manners

[0027] The embodiments of the present utility model will be described in detail below.

[0028] Example 1:

[0029] This embodiment provides a gasifier of a lighter, as shown in Figure 3 And Figure 4As shown, the gasifier in this embodiment includes an integrated air mixing pipe 31, an air outlet part 32, and a gas gathering ring 33. The main air outlet holes 322 of the air mixing pipe 31, the air outlet part 32, and the gas gathering ring 33 are coaxially arranged and penetrate up and down. The air mixing pipe 31 is provided with air inlet holes (not shown in the figure) communicated with its air outlet holes. For the convenience of description, the devices of the integrated air mixing pipe 31, the air outlet part 32, and the gas gathering ring 33 are hereinafter referred to as the integrated gasification and fusion pipe 3. During processing, a through hole that penetrates up and down in one-time molding is arranged in the middle of the integrated gasification and fusion pipe 3 as the main air outlet hole 322 of each part. The outer side surface of the air outlet part 32 is recessed inward to form a plurality of first grooves 321 distributed along the circumferential direction. The lower ends of the first grooves 321 extend to the lower end surface of the air outlet part 32. The gas gathering ring 33 is located at the upper end of the air outlet part 32, and the upper end surface of the gas gathering ring 33 is flush with the upper end surface of the air outlet part 32. The gas gathering ring 33 is provided with a plurality of small air outlet holes corresponding to the first grooves 321, and each small air outlet hole is communicated with its corresponding first groove 321. The specific structures of the air outlet part 32 and the gas gathering ring 33 are similar to those of the air outlet part 32 and the gas gathering ring 33 in the prior art, and will not be described in detail here.

[0030] It should be emphasized that since the air mixing pipe 31 and the air outlet part 32 are integrally arranged, in order to enable the gas in the main air outlet hole 322 to enter the first groove 321 of the air outlet part 32, an air outlet gap 313 that communicates the main air outlet hole 322 with the first groove 321 is formed between the upper end of the air mixing pipe 31 and the lower end of the air outlet part 32. In a specific embodiment, as Figure 3 and 4 shown, a plurality of mutually separated support steps 312 are formed between the upper end of the air mixing pipe 31 and the lower end of the air outlet part 32. The interval between adjacent support steps 312 forms the air outlet gap 313. By raising the bottom of the air outlet part 32 through the support steps 312, the gas flowing out of the main air outlet hole 322 of the air mixing pipe 31 can enter the first groove 321 through the air outlet gap 313. In another specific embodiment, an inclined surface that slopes from the middle to the periphery is formed at the lower end of the air outlet part 32, and the air outlet gap 313 is formed by the slope of the inclined surface. The air outlet gap 313 is formed between the upper end of the air mixing pipe 31 and the lower end of the air outlet part 32 through this inclined surface, so that the gas flowing out of the main air outlet hole 322 can enter the first groove 321.

[0031] In a preferred embodiment, the integrated structure of the air mixing pipe, the air outlet part, and the support steps is formed by casting with two left and right matching left half-molds and right half-molds. There are two support steps arranged in a counter-supporting manner between the lower end of the air outlet part and the upper end of the air mixing pipe, and there is an interval between adjacent support steps. By using two left and right matching left half-molds and right half-molds as molds to cast the above integrated structure, the demolding is simple. And when the molds are arranged according to the above structure, the support steps are arranged as above, with a simple structure and can achieve its functions.

[0032] In the gasifier of this embodiment, with the above settings, the air mixing pipe 31, the air outlet part 32, and the gasifier are set as an integral structure. Compared with the prior art in which each part is independent, each part does not need to be processed and assembled separately, simplifying the production and assembly processes and being conducive to improving production efficiency. At the same time, the integral structure has stronger integrity compared to the separately assembled parts, and the air mixing pipe 31, the air outlet part 32, and the gasifier will not become separated from each other during use, and the product has higher reliability.

[0033] Another improvement point of this embodiment lies in the improvement of the connection structure of the porcelain cup 2 due to the adoption of the integral gasification fusion pipe 3. As Figure 1 and Figure 2 shown, the gasifier of this embodiment further includes a porcelain cup 2 and a sleeve 1. The bottom of the porcelain cup 2 is provided with an installation hole for the air outlet part 32 to enter. A limiting edge 311 is formed on the outer side wall of the air mixing pipe 31, and the outer diameter of the limiting edge 311 is larger than the aperture of the installation hole; after the air outlet part 32 is installed in place, the sleeve 1 is inserted from above until its bottom abuts against the bottom of the porcelain cup 2. The sleeve 1 is in pressing fit with the outer surface of the air outlet part 32 and / or the outer surface of the air mixing pipe 31 extending upward into the porcelain cup 2, and the outer diameter of the sleeve 1 is larger than the aperture of the installation hole. Through the cooperation of the limiting edge 311 and the sleeve 1, the positioning of the porcelain cup 2 and the integral gasification fusion pipe 3 is realized, and for the above installation method, it can be simply pressed and assembled after being sleeved, and the whole process can be assisted by mechanical processing, and the assembly process is simple.

[0034] During assembly, the upper part of the integral gasification fusion pipe 3 extends into the porcelain cup 2 from the installation hole at the bottom of the porcelain cup 2 until the limiting edge 311 contacts the bottom of the porcelain cup 2. In a specific embodiment, those skilled in the art can set the position of the limiting edge 311 according to actual needs so that the air outlet part 32 can completely enter the porcelain cup 2, and then the sleeve 1 is press-fitted from above the air outlet part 32 until the lower end of the sleeve 1 contacts the bottom of the porcelain cup 2.

[0035] As Figure 2 shown, the bottom of the air mixing pipe 31 is provided with an installation cavity 314 communicating with the main air outlet hole 322. A tail cap 7, a mesh piece 6, a sealing ring 5, and a microporous pressure increasing cap are sequentially arranged in the installation cavity 314 from bottom to top. The tail cap 7 is in plug-in fit with the bottom of the air mixing pipe 31 for fixing the mesh piece 6, the sealing ring 5, and the microporous pressure increasing cap in the installation cavity 314. A through hole is provided in the middle of the tail cap 7. Combustible gas enters the air mixing pipe 31 from the lower part, passes through the tail cap 7 in sequence, is filtered by the mesh piece 6 to remove impurities, and then enters the main air outlet hole 322 of the air mixing pipe 31 after being gasified and pressurized by the microporous pressure increasing piece 4. After being fully mixed with the air entering from the air inlet on the air mixing pipe 31, a part enters the main air outlet of the air outlet part 32, and the other part enters the first groove 321 through the air outlet gap 313 and flows upward.

[0036] Example 2:

[0037] As Figure 5 and Figure 6 shown, in this embodiment, the air mixing tube 31 and the air outlet part 32 are integrally arranged as an integral gasification fusion tube 3, the gas gathering ring 33 is independently arranged, ridges are formed between adjacent first grooves 321 on the air outlet part 32, a clamping groove is formed by the downward depression of the ridge on the upper part of the air outlet part 32, and the gas gathering ring 33 is sleeved on the upper part of the air outlet part 32 and is tightly fitted with all the clamping grooves. In other words, the diameter of the upper part of the air outlet part is reduced radially to form a first step on the outer peripheral wall of the air outlet part, the gas gathering ring is inserted from the upper part until its bottom abuts against the first step, and the inner surface of the gas gathering ring is tightly pressed against the relatively smaller outer peripheral surface of the upper part of the air outlet part in the radial direction. During assembly, the gas gathering ring 33 can be installed after the porcelain cup 2, the integral gasification fusion tube 3 and the sleeve 1 are installed, or the connection between the integral gasification fusion tube 3 and the gas gathering ring 33 can be completed first and then the porcelain cup 2 and the sleeve 1 can be assembled. If the first installation method is adopted, it is not necessary to set the outer diameter of the gas gathering ring 33 to be smaller than the aperture of the installation hole at the bottom of the porcelain cup 2.

[0038] Example 3:

[0039] The difference between this embodiment and Example 2 is that the gas gathering ring and the air outlet part are independent of each other, the inner surface of the gas gathering ring is tightly pressed against the outer peripheral surface of the upper part of the air outlet part, and the upper end of the first groove extends upward to the upper end surface of the air outlet part. There is no need to specially form a structure for installing the gas gathering ring on the upper part of the air outlet part, and the gas gathering ring can be installed on the upper part of the air outlet part with an interference fit directly.

[0040] Example 4:

[0041] As Figure 7 and Figure 8 shown, the difference between this Example 1 and Examples 1 - 3 is that the lower end surface of the main air outlet hole of the air outlet part is located below the lower end surface of the first groove. With this setting, the gas flowing upward from the air outlet hole of the lower air mixing tube can collide with the lower end surface of the main air outlet hole and then diffuse more outward into the first groove.

[0042] The difference between this embodiment and Examples 1 - 3 also lies in the different installation methods of the integral gasification fusion tube 3, as Figure 8As shown, an installation hole for the air outlet part to enter is provided at the bottom of the porcelain cup. A limiting edge is formed on the outer side wall of the air mixing pipe, and the outer diameter of the limiting edge is larger than the aperture of the installation hole. The air outlet part is inserted into the porcelain cup from the bottom through the installation hole from bottom to top. After the air outlet part is installed in place, the limiting edge abuts against the lower end surface of the bottom of the porcelain cup. The sleeve is inserted from the upper part until its bottom abuts against the upper end surface of the bottom of the porcelain cup. The sleeve is in press-fit with the outer surface of the air outlet part, and the outer diameter of the sleeve is larger than the aperture of the installation hole. Preferably, a clamping groove for the clamping part to be clamped is formed on the outer side wall of the air mixing pipe. In a specific embodiment, the clamping part can be a circlip.

[0043] With such a setting, it is possible to cooperate with the porcelain cup from above and below through the cooperation of the limiting edge and the clamping part, without the need to process other installation structures on the porcelain cup, and the installation is simple. Moreover, after the installation is completed, the sleeve does not need to be in direct contact with the porcelain cup, and it is not easy to fall off due to heat.

[0044] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gasifier of a lighter, comprising an air mixing tube and an air outlet part. The air mixing tube is located below the air outlet part and the air mixing tube and the air outlet part are coaxially arranged; a main air outlet hole is provided in the middle of the air outlet part, and a plurality of first grooves distributed along the circumferential direction are formed by inward depression on the outer side surface of the air outlet part. The lower end of the first groove extends to the lower end surface of the air outlet part; it is characterized in that, The air mixing tube and the air outlet part are integrally formed, and an air outlet gap communicating with the air outlet hole of the air mixing tube, the main air outlet hole of the air outlet part, and the first groove is formed between the upper end of the air mixing tube and the lower end of the air outlet part.

2. The vaporizer of a lighter according to claim 1, characterized in that, It includes an air gathering ring, which is located at the upper end of the air outlet part and the upper end surface of the air gathering ring is flush with the upper end surface of the air outlet part.

3. The gasifier of a lighter according to claim 2, characterized in that, The air gathering ring is integrally formed with the air outlet part, and a plurality of small air outlet holes corresponding to the first grooves are provided on the air gathering ring, and each small air outlet hole communicates with its corresponding first groove respectively.

4. The vaporizer of a lighter according to claim 2, characterized in that, The air gathering ring and the air outlet part are independent of each other. The inner surface of the air gathering ring is pressed against the outer peripheral surface of the upper part of the air outlet part, and the upper end of the first groove extends upward to the upper end surface of the air outlet part.

5. The gasifier of a lighter according to claim 4, characterized in that, The upper part of the air outlet part is reduced in diameter radially to form a first step on the outer peripheral wall of the air outlet part. The air gathering ring is inserted from the upper part until its bottom abuts against the first step, and the inner surface of the air gathering ring is pressed against the relatively smaller outer peripheral surface of the upper part of the air outlet part in the radial direction.

6. The gasification furnace of a lighter according to claim 1, characterized in that, One or more support steps are provided between the lower end of the air outlet part and the upper end of the air mixing tube. The support steps define the air outlet gap communicating with the air outlet hole of the air mixing tube, the main air outlet hole of the air outlet part, and the first groove; the support steps are integrally formed with the air mixing tube and the air outlet part.

7. The vaporizer of a lighter according to claim 6, characterized in that, The integral structure of the air mixing tube, the air outlet part and the support steps is formed by casting with two left and right mating left half-molds and right half-molds. Two support steps arranged in a counter-supporting manner are provided between the lower end of the air outlet part and the upper end of the air mixing tube, and there is a gap between adjacent support steps.

8. The gasifier of a lighter according to claim 6, wherein, The lower end surface of the main air outlet hole of the air outlet part is located below the lower end surface of the first groove.

9. The gasifier of a lighter according to claim 1, wherein The lower end of the air outlet part forms an inclined surface that slopes from the middle to the periphery, and the air outlet gap is formed by the slope of the inclined surface.

10. The gasifier of a lighter according to claim 1, characterized in that, It also includes a porcelain cup and a sleeve. The bottom of the porcelain cup is provided with an installation hole for the air outlet part to enter. A limiting edge is formed on the outer side wall of the air mixing tube, and the outer diameter of the limiting edge is greater than the aperture of the installation hole; the air outlet part is inserted into the porcelain cup from the bottom of the porcelain cup from bottom to top. After the air outlet part is installed in place, the limiting edge abuts against the lower end surface of the bottom of the porcelain cup, and the sleeve is inserted from the upper part until its bottom abuts against the upper end surface of the bottom of the porcelain cup. The sleeve is pressed and fitted with the outer surface of the air outlet part, and the outer diameter of the sleeve is greater than the aperture of the installation hole.

11. The gasifier of a lighter according to claim 1, characterized in that, It also includes a porcelain cup and a sleeve. The bottom of the porcelain cup is provided with an installation hole for the air outlet part to enter. A limiting edge is formed on the outer side wall of the air mixing tube, and the outer diameter of the limiting edge is greater than the aperture of the installation hole; the air outlet part is inserted into the porcelain cup from top to bottom, and the air mixing tube extends downward from the installation hole at the bottom of the porcelain cup. After the air outlet part is installed in place, the limiting edge abuts against the upper end surface of the bottom of the porcelain cup, the engaging part is engaged on the outer wall of the air mixing tube, and the engaging part abuts against the lower end surface of the bottom of the porcelain cup. The sleeve is inserted from the upper part until its bottom abuts against the upper end surface of the limiting edge, and the sleeve is pressed and fitted with the outer surface of the air outlet part.

12. The vaporizer of a lighter according to claim 11, characterized in that, A clamping groove for the engaging part to be clamped is formed on the outer side wall of the air mixing tube.

13. A lighter, characterized in that, It includes a gasification furnace of a lighter as described in any one of claims 1-12.

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