Gas outlet part and gas outlet mechanism of lighter

Abstract

The utility model discloses a gas outlet portion and a gas outlet mechanism of a lighter, the gas outlet portion of the lighter comprises a gas valve, the gas valve comprises a lower section, a middle section and an upper section which are sequentially connected, the gas valve is provided with a main gas hole and at least one auxiliary gas hole, and the middle section of the gas valve is provided with a drainage groove. One end of the auxiliary air hole is communicated with the main air hole, the other end of the auxiliary air hole is communicated with the groove bottom of the drainage groove, a plurality of prisms distributed in the circumferential direction are arranged on the upper section of the air valve, and a flow dividing channel is formed between every two adjacent prisms; the method has the advantage that the ignition rate can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lighters, in particular to an air outlet part and an air outlet mechanism of a lighter. 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] The applicant has previously provided a lighter air outlet structure, with patent application number CN2024209435385, comprising an insulating cup and an air outlet portion, wherein the bottom of the insulating cup is provided with a mounting hole, the air outlet portion is penetrated by the mounting hole, a main air hole and at least one secondary air hole are provided on the air outlet portion, one end of the secondary air hole is connected to the main air hole, and at least one laterally extending drainage groove is provided on the side of the air outlet portion, the drainage groove is located in the insulating cup, and the other end of the secondary air hole is connected to the bottom of the drainage groove.

[0004] During the actual testing process, the applicant found that although the setting of the drainage groove helps to improve the uniformity of the distribution of the combustion-supporting mixed gas, the flow direction of the combustion-supporting mixed gas flowing into the insulation cup is not effectively controlled, and the problem of low ignition rate still exists. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an air outlet part and an air outlet mechanism of a lighter, which are helpful to improve the ignition rate.

[0006] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: an air outlet part of a lighter, including a valve, the valve including a lower section, a middle section and an upper section connected in sequence, the valve is provided with a main air hole and at least one auxiliary air hole, the middle section of the valve is provided with a drainage groove, one end of the auxiliary air hole is connected to the main air hole, and the other end of the auxiliary air hole is connected to the bottom of the drainage groove, the upper section of the valve is provided with a plurality of prisms distributed along the circumferential direction, and a diversion channel is formed between two adjacent prisms.

[0007] Preferably, the gas outlet of the lighter further comprises a fire focusing ring, the upper end of the prism is provided with a notch, the fire focusing ring is interference fit with all the notches, and a plurality of diversion holes are formed between the inner ring of the fire focusing ring and the valve.

[0008] Preferably, the upper end of the prism extends above the upper end surface of the valve; or, the upper end of the prism is flush with the upper end surface of the valve; or, the upper end of the prism is lower than the height of the upper end surface of the valve.

[0009] Preferably, the upper end surface of the valve is recessed downward to form an annular groove, and the diversion channel is connected to the annular groove.

[0010] Preferably, a boss is fixedly provided on the upper end surface of the valve, and a through hole communicating with the main air hole is provided on the boss.

[0011] Preferably, the upper section of the valve is sleeved with a collar, and the plurality of prisms are fixedly arranged on the outer side surface of the collar.

[0012] Preferably, the upper section of the valve is elliptical, and two auxiliary air holes are provided, and the axes of the two auxiliary air holes are parallel to the major axis of the ellipse.

[0013] And an air outlet mechanism, comprising an insulating cup and the above-mentioned air outlet part, the bottom of the insulating cup is provided with a mounting hole, the lower section of the valve is penetrated by the mounting hole, and the middle section and the upper section of the valve are both located in the insulating cup.

[0014] Preferably, the inner wall of the insulation cup is provided with a first inner ring, a second inner ring, and a third inner ring which are distributed sequentially from bottom to top, the inner diameters of the first inner ring, the second inner ring, and the third inner ring increase sequentially, the lower section of the valve is fixedly provided with a positioning ring located inside the first inner ring, the positioning ring abuts against the inner bottom surface of the insulation cup, an air storage chamber is formed between the second inner ring and the valve, and the drainage groove is communicated with the air storage chamber.

[0015] Preferably, the height of the lower end surface of the prism is lower than the height of the upper end surface of the second inner ring.

[0016] Compared with the prior art, the advantage of the utility model lies in that a plurality of prisms are arranged in the upper section of the valve to form a diversion channel between two adjacent prisms, and the combustion-supporting mixed gas flowing out of the secondary air hole first enters the drainage groove to make the distribution of the combustion-supporting mixed gas uniform, and then flows upward into the diversion channel. The diversion channel can change the flow direction of the combustion-supporting mixed gas, so that the combustion-supporting mixed gas flows upward and is finally sprayed into the combustion chamber. This part of the combustion-supporting mixed gas will be evenly and orderly distributed around the main air hole, which is convenient for ignition and helps to improve the ignition rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the gas outlet of the lighter in the utility model is shown in FIG. Figure 1 ;

[0018] Figure 2 It is a schematic cross-sectional structure diagram of the gas outlet portion of the lighter in the utility model;

[0019] Figure 3 The structure of the gas outlet of the lighter in the utility model is shown in FIG. Figure 2 ;

[0020] Figure 4 It is a schematic diagram of the explosion structure of the gas outlet portion of the lighter in the utility model;

[0021] Figure 5 The structure of the gas outlet of the lighter in the utility model is shown in FIG. Figure 3 ;

[0022] Figure 6 The structure of the gas outlet of the lighter in the utility model is shown in FIG. Figure 4 ;

[0023] Figure 7 The structure of the gas outlet of the lighter in the utility model is shown in FIG. Figure 5 ;

[0024] Figure 8 The structure of the gas outlet of the lighter in the utility model is shown in FIG. Figure 6 ;

[0025] Fig. 9 The structure of the gas outlet of the lighter in the utility model is shown in FIG. Figure 7 ;

[0026] Fig.10 It is a top view of the gas outlet portion of the lighter in the utility model;

[0027] Fig.11 It is a structural schematic diagram of the gas outlet structure in the utility model;

[0028] Fig.12 It is a cross-sectional structural diagram of the gas outlet structure in the utility model;

[0029] Fig.13 It is a schematic diagram of the cross-sectional structure of the heat-insulating cup in the utility model.

[0030] In the figure: 1. valve; 11. lower section; 12. middle section; 13. upper section; 14. main air hole; 15. auxiliary air hole; 16. drainage groove; 17. annular groove; 18. boss; 181. through hole; 19. positioning ring; 2. prism; 21. diversion channel; 22. notch; 3. fire ring; 31. diversion hole; 4. collar; 5. insulation cup; 51. mounting hole; 52. first inner ring; 53. second inner ring; 54. third inner ring; 6. air mixing pipe; 61. air inlet; 62. boost cavity; 63. boost plate; 64. sealing ring; 65. filter; 66. rubber tail cap; 7. iron cup; 8. air storage chamber. DETAILED DESCRIPTION

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] 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.

[0033] Embodiment 1: Figure 1 and Figure 2 As shown, a gas outlet of a lighter includes a valve 1, which includes a lower section 11, a middle section 12 and an upper section 13 connected in sequence. The valve 1 is provided with a main air hole 14 and at least one auxiliary air hole 15. The middle section 12 of the valve 1 is provided with a drainage groove 16. One end of the auxiliary air hole 15 is connected to the main air hole 14, and the other end of the auxiliary air hole 15 is connected to the bottom of the drainage groove 16. The upper section 13 of the valve 1 is provided with a plurality of prisms 2 distributed along the circumferential direction, and a diversion channel 21 is formed between two adjacent prisms 2. Among them, the air from the main air hole 14 flows into the heat-insulating cup 5 (see Fig.11 ) is ignited to form a central main flame, and the mixed gas flowing into the insulating cup 5 from the auxiliary air hole 15 is ignited to form a combustion-supporting flame; the main air hole 14 is a variable diameter hole, one end located inside the insulating cup 5 is a small hole, and the other end located outside the insulating cup 5 is a large hole, and the auxiliary air hole 15 is connected to a section of the large hole in the main air hole 14.

[0034] In this embodiment, the drainage groove 16 is an annular groove extending in the transverse direction, and at least two auxiliary air holes 15 are provided. All auxiliary air holes 15 are distributed in the circumferential direction. The provision of multiple auxiliary air holes 15 helps to improve the uniformity of the distribution of the combustion-supporting mixed gas. Preferably, all auxiliary air holes 15 are distributed at equal intervals in the circumferential direction.

[0035] In this embodiment, the upper end of the prism 2 is flush with the upper end surface of the valve 1. When power is turned on, electric sparks are formed between the conductive structure and the prism 2. The conductive structure is an iron cup 7 (see Fig.11 ), which is a regular structure.

[0036] In this embodiment, the valve 1 and the prism 2 are integrally formed, which helps to simplify the processing technology, reduce production costs and improve production efficiency.

[0037] Embodiment 2: Figure 3 and Figure 4 As shown, the rest of the parts are the same as those of the first embodiment, except that the gas outlet of the lighter further includes a fire focusing ring 3, a notch 22 is provided at the upper end of the prism 2, the fire focusing ring 3 is interference fit with all the notches 22, and a plurality of diversion holes 31 are formed between the inner ring of the fire focusing ring 3 and the valve 1. By providing the fire focusing ring 3, the fire focusing ring 3 is located above the diversion channel 21, and the upward-flowing combustion-supporting mixed gas partially hits the fire focusing ring 3 and then diffuses outward to the heat-insulating cup 5 (see Fig.11 ) in the inner part, reducing the flow rate and flow direction of this part of the combustion-supporting mixed gas, and the other part of the combustion-supporting mixed gas is directly sprayed into the insulating cup 5 through the diversion hole 31. The flow rate of this part of the combustion-supporting mixed gas is fast but the flow rate is small, so that the combustion-supporting mixed gas can fill the insulating cup 5 more evenly and quickly, which helps to improve the ignition rate.

[0038] Embodiment 3: Figure 5 As shown, the rest of the parts are the same as those in the first embodiment, except that the upper end of the prism 2 extends above the upper end surface of the valve 1. The prism 2 can be used as a conductive head, shortening the distance between the prism 2 and the conductive structure, making it easier to form an electric spark between the conductive structure and the prism 2 when power is turned on.

[0039] Embodiment 4: Figure 6 As shown, the rest of the parts are the same as those in the first embodiment, except that the upper end of the prism 2 is lower than the height of the upper end face of the valve 1. Since the height of the prism 2 is relatively low, the upper end face of the valve 1 acts as a conductive head, and an electric spark will be formed between the conductive structure and the edge of the upper end face of the valve 1 when power is turned on.

[0040] Embodiment 5: Figure 7 As shown, the rest of the parts are the same as those of the first embodiment, except that the upper end surface of the valve 1 is recessed downward to form an annular groove 17, and the diversion channel 21 is connected to the annular groove 17. By providing the annular groove 17, the combustion-supporting mixed gas can diffuse into the annular groove 17 toward the center, so that the combustion-supporting mixed gas can fill the insulation cup 5 more evenly and quickly, which helps to improve the ignition rate.

[0041] Example 6: Figure 8As shown, the rest of the parts are the same as those in the first embodiment, except that a boss 18 is fixedly provided on the upper end surface of the valve 1, and a through hole 181 connected to the main air hole 14 is provided on the boss 18. The setting of the boss 18 can avoid the root of the central main flame from being connected with the root of the combustion-supporting flame, and the fullness of the flame formed after ignition is better.

[0042] In this embodiment, the aperture of the through hole 181 is consistent with the aperture of the small hole in the main air hole 14 .

[0043] Embodiment 7: Fig. 9 As shown, the rest of the parts are the same as those of the first embodiment, except that the upper section 13 of the valve 1 is sleeved with a collar 4, and a plurality of prisms 2 are fixedly arranged on the outer surface of the collar 4. In this structure, the collar 4 and the upper section 13 of the valve 1 are interference fit, specifically, the inner ring of the collar 4 and the outer wall of the upper section 13 of the valve 1 are separately arranged, and the outer ring of the collar 4 and the prisms 2 are integrally formed, which facilitates the independent design and manufacture of each component, reduces the difficulty of processing, and has good flexibility.

[0044] Embodiment 8: Figure 2 , Fig.10 As shown, the rest of the parts are the same as those of the first embodiment, except that the upper section 13 of the valve 1 is elliptical, and two auxiliary air holes 15 are provided, and the axes of the two auxiliary air holes 15 are parallel to the long axis of the ellipse. The design of this structure can guide more combustion-supporting mixed gas to diffuse laterally and then flow upward into the diversion channel 21, which helps to make the distribution of the combustion-supporting mixed gas more uniform.

[0045] Embodiment 9: Figures 11 to 13 As shown, an air outlet mechanism includes an insulation cup 5, an air mixing tube 6, an iron cup 7, and any one of the air outlet parts of the first to eighth embodiments. The bottom of the insulation cup 5 is provided with a mounting hole 51, the lower section 11 of the valve 1 is provided with the mounting hole 51 and connected to the upper part of the air mixing tube 6, the middle section 12 and the upper section 13 of the valve 1 are both located in the insulation cup 5, the middle part of the air mixing tube 6 is provided with an air inlet hole 61, the lower part of the air mixing tube 6 is provided with a boosting cavity 62, the boosting cavity 62 is provided with a boosting sheet 63, a sealing ring 64, a filter 65 and a rubber tail cap 66 from top to bottom, and the iron cup 7 is sleeved on the insulation cup 5. Among them, the insulation cup 5 is a ceramic cup, and the area above the valve 1 in the insulation cup 5 is a combustion chamber. After the mixed gas is ignited, flames will be formed in the combustion chamber and the area above the insulation cup 5.

[0046] In this embodiment, the inner wall of the heat-insulating cup 5 is provided with a first inner ring 52, a second inner ring 53, and a third inner ring 54, which are distributed from bottom to top. The inner diameters of the first inner ring 52, the second inner ring 53, and the third inner ring 54 increase in sequence. The lower section 11 of the valve 1 is fixedly provided with a positioning ring 19 located inside the first inner ring 52. The positioning ring 19 abuts against the inner bottom surface of the heat-insulating cup 5. An air storage chamber 8 is formed between the second inner ring 53 and the valve 1. The drainage groove 16 is connected to the air storage chamber 8. The air storage chamber 8 helps to distribute the combustion-supporting mixed gas more evenly. Preferably, the positioning ring 19 is integrally formed with the lower section 11 of the valve 1.

[0047] Embodiment 10: Fig.12 As shown, the rest of the parts are the same as those of the ninth embodiment, the difference being that the height of the lower end surface of the prism 2 is lower than the height of the upper end surface of the second inner ring 53, so that the combustion-supporting mixed gas in the gas storage chamber 8 enters the combustion chamber through the diversion channel 21.

[0048] It should be noted that the insulation cup 5 is generally a ceramic cup, which may break if it comes into contact with the prism 2. In this solution, a small distance needs to be maintained between the prism 2 and the second inner ring 53 to avoid the insulation cup 5 from breaking, while ensuring that most of the combustion-supporting mixed gas flows into the diversion channel 21.

[0049] 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. An air outlet portion of a lighter, comprising an air valve (1), wherein the air valve (1) comprises a lower section (11), a middle section (12) and an upper section (13) connected in sequence, wherein the air valve (1) is provided with a main air hole (14) and at least one auxiliary air hole (15), wherein the middle section (12) of the air valve (1) is provided with a drainage groove (16), wherein one end of the auxiliary air hole (15) is connected to the main air hole (14), and the other end of the auxiliary air hole (15) is connected to the bottom of the drainage groove (16), wherein the air valve (1) is provided with a main air hole (14), and the other end of the auxiliary air hole (15) is connected to the bottom of the drainage groove (16), wherein the main air hole (14) is connected to the middle section (12) of the air valve (1). The upper section (13) of the valve (1) is provided with a plurality of prisms (2) distributed along the circumferential direction, and a flow dividing channel (21) is formed between two adjacent prisms (2).

2. The gas outlet of a lighter according to claim 1, characterized in that It also includes a fire focusing ring (3), the upper end of the prism (2) is provided with a notch (22), the fire focusing ring (3) is interference fit with all the notches (22), and a plurality of diversion holes (31) are formed between the inner ring of the fire focusing ring (3) and the valve (1).

3. The gas outlet of a lighter according to claim 1, characterized in that The upper end of the prism (2) extends above the upper end surface of the valve (1); Or, the upper end of the prism (2) is flush with the upper end surface of the valve (1); Alternatively, the upper end of the prism (2) is lower than the height of the upper end surface of the valve (1).

4. The gas outlet of a lighter according to claim 1, characterized in that The upper end surface of the valve (1) is recessed downward to form an annular groove (17), and the flow diversion channel (21) is connected to the annular groove (17).

5. The gas outlet of a lighter according to claim 1, characterized in that A boss (18) is fixedly provided on the upper end surface of the valve (1), and a through hole (181) connected to the main air hole (14) is provided on the boss (18).

6. The gas outlet of a lighter according to claim 1, characterized in that The upper section (13) of the valve (1) is sleeved with a collar (4), and a plurality of prisms (2) are fixedly arranged on the outer side surface of the collar (4).

7. The gas outlet of a lighter according to claim 1, characterized in that The upper section (13) of the valve (1) is elliptical, and two auxiliary air holes (15) are provided, and the axes of the two auxiliary air holes (15) are parallel to the major axis of the ellipse.

8. An air outlet mechanism, comprising a heat-insulating cup (5), wherein the bottom of the heat-insulating cup (5) is provided with a mounting hole (51), characterized in that It also includes the air outlet portion as described in any one of claims 1 to 7, the lower section (11) of the air valve (1) is provided with the mounting hole (51), and the middle section (12) and the upper section (13) of the air valve (1) are both located in the heat-insulating cup (5).

9. An air outlet mechanism according to claim 8, characterized in that The inner wall of the heat-insulating cup (5) is provided with a first inner ring (52), a second inner ring (53), and a third inner ring (54) which are sequentially distributed from bottom to top, and the inner diameters of the first inner ring (52), the second inner ring (53), and the third inner ring (54) are sequentially increased. The lower section (11) of the valve (1) is fixedly provided with a positioning ring (19) located inside the first inner ring (52), and the positioning ring (19) is in contact with the inner bottom surface of the heat-insulating cup (5). An air storage chamber (8) is formed between the second inner ring (53) and the valve (1), and the drainage groove (16) is connected with the air storage chamber (8).

10. An air outlet mechanism according to claim 9, characterized in that The height at which the lower end surface of the prism (2) is located is lower than the height at which the upper end surface of the second inner ring (53) is located.

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