Gas outlet structure of lighter

Abstract

The utility model discloses a lighter gas outlet structure which comprises a heat insulation cup and a gas outlet portion, an installation hole is formed in the cup bottom of the heat insulation cup, the gas outlet portion penetrates through the installation hole, a main gas hole and at least one auxiliary gas hole are formed in the gas outlet portion, one end of the auxiliary gas hole is communicated with the main gas hole, and the other end of the auxiliary gas hole is communicated with the heat insulation cup. The side face of the air outlet part is provided with at least one drainage groove extending transversely, the drainage groove is located in the heat insulation cup, and the other end of the auxiliary air hole is communicated with the groove bottom of the drainage groove. The burner has the advantages that the distribution uniformity of the combustion-supporting mixed gas is improved, the central main flame is prevented from shaking or shifting after ignition, and the user experience is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of lighters, in particular to a lighter gas outlet structure. Background Art

[0002] The gas outlet mechanism of a lighter generally includes accessories such as an air mixing tube, a gas outlet part, an insulation cup, and a conductive structure. The tail of the gas outlet part is plugged into the air mixing tube, and the head of the gas outlet part extends into the insulation cup. 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 gas outlet part. 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] To facilitate assembly, the applicant has previously provided a lighter air outlet structure and a lighter using the same, with patent application number CN202323575832X. The lighter air outlet structure includes a first part capable of flowing a large airflow and a second part capable of flowing a small airflow; the first part and the second part are integrally formed to form an integrated valve with multiple air channels. By changing the split assembly structure to an integrally formed structure, the middle seat is omitted, thereby simplifying the assembly of the lighter air outlet mechanism and improving the reliability of the lighter air outlet mechanism.

[0004] Although the above scheme can simplify assembly, when igniting a lighter using the lighter outlet structure, the applicant found that the combustion-supporting mixed gas that entered the insulating cup from the secondary air hole through the auxiliary air outlet channel did not form a regular circle after ignition, but was discontinuous, that is, the combustion-supporting mixed gas had an uneven distribution problem, which may cause the central main flame to shake or shift, affecting the user experience. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a lighter gas outlet structure, which helps to improve the uniformity of the distribution of the combustion-supporting mixed gas, avoids the shaking or deviation of the central main flame after ignition, and provides a better user experience.

[0006] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a lighter air outlet structure, including an insulating cup and an air outlet part, the bottom of the insulating cup is provided with a mounting hole, the air outlet part is penetrated by the mounting hole, the air outlet part is provided with a main air hole and at least one auxiliary air hole, one end of the auxiliary air hole is connected with the main air hole, and the side of the air outlet part is provided with at least one laterally extending drainage groove, the drainage groove is located in the insulating cup, and the other end of the auxiliary air hole is connected with the bottom of the drainage groove.

[0007] Preferably, at least two secondary air holes are provided, and all the secondary air holes are distributed along the circumferential direction.

[0008] Preferably, the drainage groove is provided with one and is annular, and the other ends of all the secondary air holes are respectively connected to the bottom of the drainage groove.

[0009] Preferably, the number of the drainage grooves is consistent with the number of the secondary air holes and corresponds one to one, and the other end of the secondary air hole is connected to the bottom of the corresponding drainage groove.

[0010] Preferably, the drainage groove is spiral-shaped, and the other end of the secondary air hole is connected to the lower end of the corresponding drainage groove.

[0011] Preferably, the air outlet is arranged in a columnar shape, the main air hole is arranged at the center of the air outlet, and the auxiliary air hole is arranged on the side of the air outlet.

[0012] Preferably, the upper end of the air outlet portion bulges outwardly in the circumferential direction to form a convex ring, and the convex ring is provided with a plurality of diversion channels distributed in the circumferential direction.

[0013] Preferably, the distance between two adjacent diversion channels is in a variable state and is arranged in a sparse or dense interval, and the secondary air holes are located below the diversion channel with a relatively sparse interval.

[0014] Preferably, the diversion channel is a through hole arranged on the end surface of the convex ring or a notch arranged on the outer side surface of the convex ring.

[0015] Preferably, the lower end of the air outlet is connected to an air mixing tube, an air inlet hole is provided in the middle of the air mixing tube, a boosting cavity is provided at the lower part of the air mixing tube, and a boosting plate, a sealing ring, a filter and a rubber tail cap are provided in the boosting cavity from top to bottom.

[0016] Compared with the prior art, the advantage of the utility model lies in that at least one laterally extending drainage groove is arranged on the side of the air outlet part, so that the combustion-supporting mixed gas flowing out from the secondary air holes is diffused outward and along the extension direction of the drainage groove, that is, part of the combustion-supporting mixed gas first flows outward and then flows upward, and the other part of the combustion-supporting mixed gas diffuses laterally and then flows upward. The combustion-supporting mixed gas diffused laterally can make up for the gas amount in the area between the secondary air holes, can improve the uniformity of the distribution of the mixed gas, and thus avoid the shaking or deviation of the central main flame after ignition, and provide a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the air outlet portion of the utility model;

[0019] Figure 3The side structure diagram of the air outlet of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 4 The side structure diagram of the air outlet of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 5 A top view of the utility model Figure 1 ;

[0022] Figure 6 A top view of the utility model Figure 2 .

[0023] In the figure: 1. Insulation cup; 11. Mounting hole; 2. Air outlet; 21. Main air hole; 22. Secondary air hole; 23. Drainage groove; 24. Convex ring; 241. Diversion channel; 3. Air mixing tube; 31. Air inlet hole; 32. Boosting cavity; 4. Boosting plate; 5. Sealing ring; 6. Filter; 7. Rubber tail cap. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] Embodiment 1: Figure 1 and Figure 2 As shown, a lighter gas outlet structure includes an insulating cup 1 and an air outlet portion 2, wherein the bottom of the insulating cup 1 is provided with a mounting hole 11, the air outlet portion 2 is penetrated by the mounting hole 11, a main air hole 21 and at least one auxiliary air hole 22 are provided on the air outlet portion 2, one end of the auxiliary air hole 22 is communicated with the main air hole 21, and at least one transversely extending drainage groove 23 is provided on the side of the air outlet portion 2, the drainage groove 23 is located in the insulating cup 1, and the other end of the auxiliary air hole 22 is communicated with the groove bottom of the drainage groove 23, wherein the mixed gas flowing into the insulating cup 1 from the main air hole 21 is ignited to form a central main flame, and the mixed gas flowing into the insulating cup 1 from the auxiliary air hole 22 is ignited to form a combustion-supporting flame; the conventional insulating cup 1 adopts a porcelain cup; the main air hole 21 is a variable diameter hole, one end located in the insulating cup 1 is a small hole, and the end located outside the insulating cup 1 is a large hole, and the auxiliary air hole 22 is communicated with a section of the large hole in the main air hole 21.

[0027] In this embodiment, at least two auxiliary air holes 22 are provided, and all auxiliary air holes 22 are distributed along the circumferential direction. The provision of multiple auxiliary air holes 22 helps to improve the uniformity of the distribution of the combustion-supporting mixed gas. Preferably, all auxiliary air holes 22 are distributed at equal intervals along the circumferential direction.

[0028] In this embodiment, a drainage groove 23 is provided and is in a ring shape, and the other ends of all the auxiliary air holes 22 are respectively connected to the bottom of the drainage groove 23, and the combustion-supporting mixed gas flowing out of the auxiliary air holes 22 diffuses outward and to both sides. The combustion-supporting mixed gas diffused to both sides is used to supplement the gas volume in the area between the auxiliary air holes 22.

[0029] In this embodiment, the lower end of the air outlet part 2 is connected to the air mixing tube 3, the middle part of the air mixing tube 3 is provided with an air inlet hole 31, the lower part of the air mixing tube 3 is provided with a boosting cavity 32, and the boosting cavity 32 is provided with a boosting plate 4, a sealing ring 5, a filter screen 6 and a rubber tail cap 7 from top to bottom.

[0030] Embodiment 2: Figure 3 As shown, the rest of the parts are the same as those in the first embodiment, except that the number of the drainage grooves 23 is consistent with the number of the auxiliary air holes 22 and corresponds one to one, and the other end of the auxiliary air hole 22 is connected to the bottom of the corresponding drainage groove 23.

[0031] In this embodiment, the other end of the auxiliary air hole 22 is connected to the middle part or one end of the bottom of the corresponding drainage groove 23. When the other end of the auxiliary air hole 22 is connected to the middle part of the bottom of the drainage groove 23, see Figure 3 The combustion-supporting mixed gas flowing out of the auxiliary air holes 22 diffuses outward and to both sides, and the combustion-supporting mixed gas diffused to both sides is used to supplement the amount of gas in the area between the auxiliary air holes 22, so as to achieve the purpose of uniform distribution of gas; when the other end of the auxiliary air holes 22 is connected with one end of the bottom of the drainage groove 23, the combustion-supporting mixed gas flowing out of the auxiliary air holes 22 diffuses outward and to the other end of the drainage groove 23, and the combustion-supporting mixed gas will flow upward in a spiral, so that the distribution of the combustion-supporting mixed gas in the area it flows through is more uniform.

[0032] Embodiment 3: As shown in 4, the rest of the parts are the same as Embodiment 2, the difference being that the drainage groove 23 is spiral, and the other end of the secondary air hole 22 is connected to the lower end of the corresponding drainage groove 23. The drainage groove 23 is arranged in a spiral shape to guide the combustion-supporting mixed gas to flow upward in a spiral, thereby reducing the possibility of collision between the combustion-supporting mixed gases flowing out of different secondary air holes 22 and achieving better stability.

[0033] Embodiment 4: Figure 1 and Figure 5As shown, the rest of the parts are the same as those of the first embodiment, except that the air outlet 2 is arranged in a columnar shape, the main air hole 21 is arranged at the center of the air outlet 2, and the auxiliary air hole 22 is arranged on the side of the air outlet 2.

[0034] In this embodiment, the upper end of the air outlet portion 2 protrudes outward along the circumferential direction to form a convex ring 24, and a plurality of flow distribution channels 241 distributed along the circumferential direction are provided on the convex ring 24.

[0035] In this embodiment, the diverter channel 241 is a through hole arranged on the end face of the convex ring 24 or a notch arranged on the outer side face of the convex ring 24. When the diverter channel 241 is a notch, the notch passes through the upper and lower end faces of the convex ring 24, so that the outer side face of the convex ring 24 forms a tooth shape.

[0036] Embodiment 5: Figure 6 As shown, the rest is the same as that of Example 4, the difference being that the spacing between two adjacent diversion channels 241 is in a variable state, and is arranged in a sparse and dense interval, and the secondary air holes 22 are located below the sparser diversion channels 241. By varying the density of the diversion channels 241, the combustion-supporting mixed gas above the secondary air holes 22 has a fast flow rate but a small flow rate, and the combustion-supporting mixed gas above the adjacent secondary air holes 22 has a slow flow rate but a large flow rate, which helps to improve the uniformity of the distribution of the combustion-supporting mixed gas.

[0037] 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 lighter gas outlet structure, comprising a heat-insulating cup (1) and a gas outlet portion (2), wherein the bottom of the heat-insulating cup (1) is provided with a mounting hole (11), the gas outlet portion (2) is penetrated by the mounting hole (11), the gas outlet portion (2) is provided with a main gas hole (21) and at least one auxiliary gas hole (22), one end of the auxiliary gas hole (22) is connected to the main gas hole (21), characterized in that At least one laterally extending drainage groove (23) is provided on the side of the air outlet portion (2); the drainage groove (23) is located in the heat-insulating cup (1); and the other end of the secondary air hole (22) is connected to the bottom of the drainage groove (23).

2. A lighter gas outlet structure according to claim 1, characterized in that At least two auxiliary air holes (22) are provided, and all the auxiliary air holes (22) are distributed along the circumferential direction.

3. A lighter gas outlet structure according to claim 2, characterized in that The drainage groove (23) is provided with one and is annular, and the other ends of all the secondary air holes (22) are respectively connected to the bottom of the drainage groove (23).

4. A lighter gas outlet structure according to claim 2, characterized in that The number of the drainage grooves (23) is consistent with the number of the auxiliary air holes (22) and corresponds one to one, and the other end of the auxiliary air hole (22) is connected to the bottom of the corresponding drainage groove (23).

5. A lighter gas outlet structure according to claim 4, characterized in that The drainage groove (23) is spiral-shaped, and the other end of the secondary air hole (22) is connected to the lower end of the corresponding drainage groove (23).

6. A lighter gas outlet structure according to claim 1, characterized in that The air outlet portion (2) is arranged in a columnar shape, the main air hole (21) is arranged at the center of the air outlet portion (2), and the secondary air hole (22) is arranged on the side of the air outlet portion (2).

7. A lighter gas outlet structure according to claim 6, characterized in that The upper end of the air outlet portion (2) protrudes outwards in the circumferential direction to form a convex ring (24), and the convex ring (24) is provided with a plurality of flow diversion channels (241) distributed in the circumferential direction.

8. A lighter gas outlet structure according to claim 7, characterized in that The distance between two adjacent flow diversion channels (241) is in a variable state and is arranged in a sparse or dense interval, and the secondary air holes (22) are located below the sparser flow diversion channels (241).

9. A lighter gas outlet structure according to claim 7, characterized in that The flow-dividing channel (241) is a through hole arranged on the end surface of the convex ring (24) or a notch arranged on the outer side surface of the convex ring (24).

10. A lighter gas outlet structure according to claim 1, characterized in that The lower end of the air outlet portion (2) is connected to an air mixing pipe (3), the middle of the air mixing pipe (3) is provided with an air inlet hole (31), the lower part of the air mixing pipe (3) is provided with a boosting cavity (32), and the boosting cavity (32) is provided with a boosting sheet (4), a sealing ring (5), a filter (6) and a rubber tail cap (7) in sequence from top to bottom.

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