Gasification furnace of lighter

Abstract

The utility model discloses a gasifier of a lighter, which comprises a gas outlet part and an air mixing pipe, the lower end of the gas outlet part is inserted into the air mixing pipe, the side surface of the air mixing pipe is provided with a gas inlet hole, the lower end of the gas outlet part expands outwards along the circumferential direction to form a flaring edge extending into the gas inlet hole, and the flaring edge extends into the gas inlet hole. A thinning groove is formed in the upper portion of the outer side face of the flaring edge. The air outlet structure has the advantage that the stability of connection between the air outlet part and the air mixing pipe is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lighter accessories, in particular to a gasification furnace of a lighter. Background Art

[0002] The lighter gasification furnace generally includes accessories such as an air mixing tube, an air outlet, and an insulation cup. The bottom of the insulation cup is provided with a mounting hole, the air outlet is provided in the insulation cup, and the lower part of the air outlet passes through the mounting hole and is plugged into the air mixing tube. The gas in the gas storage box assembly is mixed with air through the air mixing tube, and the mixed gas is sprayed into the insulation cup through the air outlet. When the conductive structure is energized, sparks are emitted into the insulation cup, igniting the mixed gas in the insulation cup to form a flame.

[0003] Conventionally, the lower part of the air outlet is connected to the inner wall of the air mixing tube by interference fit. However, during the use of the lighter, the high temperature will change the stability of the connection between the two, and eventually separation may occur. For this reason, in a gasification furnace for a lighter disclosed in application number CN202222135829.5, the lower end of the injection head expands outward along the circumferential direction to form a flared edge extending into the air inlet, and the flared edge is snap-fitted with the inner wall of the air inlet. The flared edge is used to connect and fix the injection head and the air mixing tube, and the connection stability is good, and the two are not easy to loosen.

[0004] In the actual processing, after the lower part of the air outlet is inserted into the air mixing tube, the ejector on the machine needs to be inserted from bottom to top into the air mixing tube and into the air outlet. The width of the ejector is larger than the inner diameter of the lower end of the air outlet and smaller than the outer diameter of the lower part of the air outlet. The ejector will open the lower part of the air outlet to form a flared edge. Since the wall thickness of the lower part of the air outlet is uniform and thick, the bending strength is good, and the bending angle of the flared edge formed by the eversion is small (such as Figure 1 As shown), the flared edge and the inner wall of the air inlet hole do not fit fully, which not only affects the stability of the connection between the two, but also the flared edge will block a large area of ​​the air inlet hole, affecting the air intake, so there is still room for improvement. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a gasification furnace of a lighter, which is helpful to improve the stability of the connection between the gas outlet part and the air mixing pipe.

[0006] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a gasification furnace of a lighter, including an air outlet part and an air mixing tube, the lower end of the air outlet part is inserted into the air mixing tube, the side of the air mixing tube is provided with an air inlet hole, the lower end of the air outlet part expands outward along the circumferential direction to form a flared edge extending into the air inlet hole, and the upper part of the outer side surface of the flared edge is provided with a thinning groove.

[0007] Preferably, the thinning groove is an annular groove.

[0008] Preferably, the thinning groove comprises at least two arcuate grooves, and all the arcuate grooves are distributed at equal intervals along the circumferential direction.

[0009] Preferably, at least one groove is provided at the lower portion of the outer side surface of the flared edge, and one end of the groove passes through an end of the flared edge away from the thinning groove.

[0010] Preferably, the other end of the groove is communicated with the thinning groove.

[0011] Preferably, at least one through groove is provided at one end of the flared edge away from the thinning groove, and the through groove passes through the inner and outer side surfaces of the flared edge.

[0012] Preferably, the bottom of the through groove is communicated with the thinning groove.

[0013] And a gasification furnace for a lighter, comprising an air outlet and an air mixing tube, wherein the lower end of the air outlet is inserted into the air mixing tube, an air inlet hole is arranged on the side of the air mixing tube, the lower end of the air outlet expands outwardly along the circumferential direction to form a flared edge extending into the air inlet hole, the lower end of the air outlet is recessed upward to form an annular step groove, and the air outlet located at the step groove expands outwardly along the circumferential direction to form the flared edge.

[0014] Preferably, the step groove is located on the inner side of the air outlet portion or on the outer side of the air outlet portion.

[0015] Compared with the prior art, the advantages of the utility model are:

[0016] 1. By setting a thinning groove to reduce the wall thickness of a specific area at the lower part of the air outlet, the bending strength at the location of the thinning groove is reduced, making it easier to bend and deform. When processing the flared edge, the bending angle of the flared edge is increased, and the flared edge can fully fit with the inner wall of the air inlet hole, which helps to improve the stability of the connection between the air outlet and the air mixing pipe;

[0017] 2. By setting a step groove to reduce the wall thickness of the lower part of the air outlet, the bending strength at the location of the step groove is reduced, making it easier to bend and deform. When processing the flared edge, the bending angle of the flared edge is increased, and the flared edge can fully fit with the inner wall of the air inlet hole, which helps to improve the stability of the connection between the air outlet and the air mixing pipe;

[0018] 3. When the flared edge is fully fitted with the inner wall of the air inlet hole, the flared edge will reduce the obstruction of the air inlet hole, thereby reducing the impact on the air intake volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the connection between the existing air outlet and the air mixing pipe;

[0020] Figure 2 The cross-sectional structure of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 3 This is a schematic diagram of the local structure of the utility model when the expanded edge is not expanded outwards. Figure 1 ;

[0022] Figure 4 It is a schematic diagram of the overall structure of the gasifier in the utility model;

[0023] Figure 5 This is a schematic diagram of the local structure of the utility model when the expanded edge is not expanded outwards. Figure 2 ;

[0024] Figure 6 This is a schematic diagram of the local structure of the utility model when the expanded edge is not expanded outwards. Figure 3 ;

[0025] Figure 7 This is a schematic diagram of the local structure of the utility model when the expanded edge is not expanded outwards. Figure 4 ;

[0026] Figure 8 The cross-sectional structure of the utility model is shown in FIG. Figure 2 ;

[0027] Fig. 9 This is a schematic diagram of the local structure of the utility model when the expanded edge is not expanded outwards. Figure 5 ;

[0028] Fig.10 This is a schematic diagram of the local structure of the utility model when the expanded edge is not expanded outwards. Figure 6 .

[0029] In the figure: 1. air outlet; 11. flared edge; 12. thinning groove; 121. annular groove; 122. arc groove; 13. groove; 14. through groove; 15. step groove; 2. air mixing tube; 21. air inlet; 3. heat insulation cup; 31. mounting hole. DETAILED DESCRIPTION

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0032] Embodiment 1: Figures 2 to 4 As shown, a gasification furnace of a lighter includes an air outlet portion 1, an air mixing tube 2 and an insulating cup 3. The bottom of the insulating cup 3 is provided with a mounting hole 31. The lower end of the air outlet portion 1 passes through the mounting hole 31 and is inserted into the air mixing tube 2. The side of the air mixing tube 2 is provided with an air inlet hole 21. The lower end of the air outlet portion 1 expands outward along the circumferential direction to form a flared edge 11 extending into the air inlet hole 21. The upper part of the outer side surface of the flared edge 11 is provided with a thinning groove 12.

[0033] In this embodiment, the thinning groove 12 is an annular groove 121 .

[0034] Conventionally, the air outlet 1 adopts a pagoda structure or a straight structure, which is not limited here. The lower part of the air outlet 1 is tubular, and the lower part of the air outlet 1 passes through the mounting hole 31 at the bottom of the insulation cup 3 and is inserted into and matched with the upper part of the air mixing pipe 2.

[0035] By providing a thinning groove 12, the wall thickness of a specific area at the lower part of the air outlet portion 1 is thinned, and the bending strength at the location of the thinning groove 12 is reduced, making it easier to bend and deform. Furthermore, when processing the flared edge 11, the bending angle of the flared edge 11 is increased, and the flared edge 11 can fully fit with the inner wall of the air inlet hole 21, which helps to improve the stability of the connection between the air outlet portion 1 and the air mixing pipe 2.

[0036] Embodiment 2: Figure 2 and Figure 5 As shown, the rest of the parts are the same as those in the first embodiment, except that the thinning groove 12 includes at least two arc grooves 122, and all the arc grooves 122 are evenly spaced along the circumferential direction.

[0037] Conventionally, two air inlet holes 21 are provided on the air mixing tube 2 , and accordingly, there are preferably two arc-shaped grooves 122 , the two arc-shaped grooves 122 correspond to the two air inlet holes 21 one by one, and the arc-shaped grooves 122 are located above the corresponding air inlet holes 21 .

[0038] Embodiment 3: Figure 2 and Figure 6As shown, the rest of the parts are the same as those in the first embodiment, except that at least one groove 13 is provided at the lower part of the outer side surface of the flared edge 11, one end of the groove 13 passes through the end of the flared edge 11 away from the thinning groove 12, and the other end of the groove 13 is connected to the thinning groove 12.

[0039] By providing the groove 13, when processing the flared edge 11, the lower part of the air outlet portion 1 at the groove 13 is easier to tear than other parts, so as to guide the lower part of the air outlet portion 1 to bend and deform in a specified direction, which helps to improve the fit between the flared edge 11 and the air inlet 21.

[0040] Embodiment 4: Figure 2 and Figure 7 As shown, the rest of the parts are the same as those in the first embodiment, except that at least one through groove 14 is provided at one end of the flared edge 11 away from the thinning groove 12, and the through groove 14 passes through the inner and outer side surfaces of the flared edge 11, and the bottom of the through groove 14 is connected to the thinning groove 12.

[0041] When processing the flared edge 11 , the provision of the through groove 14 can guide the lower portion of the air outlet portion 1 to bend and deform in a specified direction, which helps to improve the fit between the flared edge 11 and the air inlet 21 .

[0042] Embodiment 5: Figures 8 to 10 As shown, a gasification furnace of a lighter includes an air outlet portion 1 and an air mixing tube 2. The lower end of the air outlet portion 1 is inserted into the air mixing tube 2. An air inlet hole 21 is provided on the side of the air mixing tube 2. The lower end of the air outlet portion 1 expands outward along the circumferential direction to form a flared edge 11 extending into the air inlet hole 21.

[0043] In this embodiment, the lower end of the air outlet portion 1 is recessed upward to form an annular step groove 15, and the air outlet portion 1 located at the step groove 15 expands outward along the circumferential direction to form a flared edge 11. Furthermore, the step groove 15 is located on the inner side of the air outlet portion 1 or on the outer side of the air outlet portion 1.

[0044] By providing the step groove 15, the wall thickness of the lower part of the air outlet portion 1 is thinned, and the bending strength at the position of the step groove 15 is reduced, making it easier to bend and deform. Then, when processing the flared edge 11, the bending angle of the flared edge 11 is increased, and the flared edge 11 can fully fit with the inner wall of the air inlet hole 21, which helps to improve the stability of the connection between the air outlet portion 1 and the air mixing pipe 2.

[0045] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A gasification furnace for a lighter, comprising an air outlet portion (1) and an air mixing tube (2), wherein the lower end of the air outlet portion (1) is inserted into the air mixing tube (2), an air inlet hole (21) is arranged on the side of the air mixing tube (2), and the lower end of the air outlet portion (1) expands outwardly along the circumferential direction to form a flared edge (11) extending into the air inlet hole (21), characterized in that A thinning groove (12) is provided on the upper portion of the outer side surface of the flared edge (11).

2. A gasification furnace for a lighter according to claim 1, characterized in that The thinning groove (12) is an annular groove (121).

3. A gasification furnace for a lighter according to claim 1, characterized in that The thinning groove (12) comprises at least two arc-shaped grooves (122), and all the arc-shaped grooves (122) are distributed at equal intervals along the circumferential direction.

4. A gasification furnace for a lighter according to claim 1, characterized in that At least one groove (13) is provided at the lower part of the outer side surface of the flared edge (11), and one end of the groove (13) passes through an end of the flared edge (11) away from the thinning groove (12).

5. A gasification furnace for a lighter according to claim 4, characterized in that The other end of the groove (13) is in communication with the thinning groove (12).

6. The gasification furnace for a lighter according to claim 1, characterized in that At least one through groove (14) is provided at one end of the flared edge (11) away from the thinning groove (12), and the through groove (14) passes through both inner and outer side surfaces of the flared edge (11).

7. A gasification furnace for a lighter according to claim 6, characterized in that The bottom of the through groove (14) is connected to the thinning groove (12).

8. A gasification furnace for a lighter, comprising an air outlet portion (1) and an air mixing tube (2), wherein the lower end of the air outlet portion (1) is inserted into the air mixing tube (2), an air inlet hole (21) is arranged on the side of the air mixing tube (2), and the lower end of the air outlet portion (1) expands outwardly along the circumferential direction to form a flared edge (11) extending into the air inlet hole (21), characterized in that The lower end of the air outlet portion (1) is recessed upward to form an annular step groove (15), and the air outlet portion (1) located at the step groove (15) expands outwardly in the circumferential direction to form the flared edge (11).

9. A gasification furnace for a lighter according to claim 8, characterized in that The step groove (15) is located on the inner side of the air outlet portion (1) or on the outer side of the air outlet portion (1).

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