Gas outlet part and gas outlet structure of lighter

Abstract

The utility model discloses a gas outlet portion and a lighter gas outlet structure, the gas outlet portion comprises a lower cylinder body capable of flowing large gas flow and an upper cylinder body capable of flowing small gas flow, the lower cylinder body is provided with at least two protruding edges used for conducting electricity, all the protruding edges are distributed in the circumferential direction, and the upper cylinder body is located between all the protruding edges; the ignition device has the advantages that the ribs arranged on the lower barrel body are used for ignition, and the ignition rate can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of lighter accessories, in particular to an air outlet part and a lighter air outlet structure. Background Art

[0002] The lighter's exhaust mechanism typically consists of an air mixing tube, an exhaust section, an insulating cup, and a conductive structure. The tail of the exhaust section plugs into the air mixing tube, while the head of the exhaust section extends into the insulating cup. The gas in the gas reservoir mixes with air through the air mixing tube. The mixed gas is then sprayed into the insulating cup through the exhaust section. When the conductive structure is energized, sparks fly into the insulating cup, igniting the mixed gas inside and forming a flame.

[0003] A conventional conductive structure is described in a lighter combustion head disclosed in application number CN201720976426.X, in which a conductive cup is mounted on the upper end of the porcelain cup, the outer section of the conductive cup is mounted on the outer wall of the porcelain cup, the inner section of the conductive cup extends into the inner cavity of the porcelain cup, and the distance between the lower end of the inner section and the upper end of the air outlet is within the ignition distance range.

[0004] The inner section of the conductive cup in the above technical solution can be a single conductive rod, multiple conductive rods, or a conductive surface, depending on the needs. Due to the relatively small size of the insulating cup, an overly large inner section would hinder the diffusion of the mixed gas and affect the shape of the ignition flame. However, an undersized inner section of the conductive cup would be insufficiently strong. During ignition, the mixed gas flows from bottom to top at a high velocity, which can easily cause the inner section of the conductive cup to bend, increasing the distance between the inner section and the gas outlet, ultimately affecting the ignition rate. Utility Model Content

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

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: an air outlet portion, including a lower cylinder capable of flowing a large airflow and an upper cylinder capable of flowing a small airflow, the lower cylinder being provided with at least two ridges for conducting electricity, all of the ridges being distributed along the circumferential direction, and the upper cylinder being located between all the ridges.

[0007] Preferably, the lower end surface of the ridge is fixedly connected to the upper end surface of the lower cylinder.

[0008] Preferably, the ridge is integrally formed with the lower cylinder.

[0009] Preferably, the inner side surface of the ridge is fixedly connected to or abuts against the outer side surface of the upper cylinder.

[0010] Preferably, the lower cylinder, the ribs and the upper cylinder are integrally formed.

[0011] Preferably, a gap is left between the lower cylinder and the upper cylinder to form a lateral diversion channel, and all the ridges divide the diversion channel into a plurality of side holes.

[0012] Preferably, the outer side of the upper end surface of the ridge is recessed downward to form a step surface.

[0013] Preferably, the height of the upper end surface of the ridge is higher than, equal to or lower than the height of the upper end surface of the upper cylinder.

[0014] Preferably, the inner diameter of the lower cylinder is greater than, equal to or smaller than the outer diameter of the upper cylinder.

[0015] And a lighter gas outlet structure, including an insulating cup, a conductive cup and the above-mentioned gas outlet part, the bottom of the insulating cup is provided with a mounting hole, the conductive cup is sleeved on the outside of the insulating cup, the lower part of the lower cylinder is penetrated by the mounting hole, the upper part of the lower cylinder, the upper part of the upper cylinder, and the ridge are all located in the insulating cup, and the distance between the ridge and the conductive cup is within the ignition distance range.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. By setting a convex ridge for conduction on the lower cylinder, when power is turned on, the convex ridge cooperates with the conductive cup to produce sparks for ignition. Compared with the inner section of the conventional conductive cup, the convex ridge set on the lower cylinder is less affected by the mixed gas and is not prone to bending, which helps to ensure the ignition rate;

[0018] 2. The ridges extend in the up-down direction, which has little effect on the flow and diffusion direction of the mixed gas, helping to ensure a full flame after ignition;

[0019] 3. Compared with the inner section of the conventional conductive cup, the ridge can be made larger in size and has better structural stability, which helps to extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the air outlet in the utility model Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the air outlet in the utility model. Figure 1 ;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the air outlet in the utility model. Figure 2 ;

[0023] Figure 4This is a schematic diagram of the structure of the air outlet in the utility model Figure 2 ;

[0024] Figure 5 This is a schematic diagram of the structure of the air outlet in the utility model Figure 3 ;

[0025] Figure 6 This is a schematic diagram of the structure of the air outlet in the utility model Figure 4 ;

[0026] Figure 7 It is a structural schematic diagram of the gas outlet structure of the lighter in this utility model.

[0027] In the figure: 1. Lower cylinder; 11. Positioning ring; 2. Upper cylinder; 21. Inclined guide surface; 3. Raised ridge; 31. Step surface; 4. Side hole; 5. Insulation cup; 51. Mounting hole; 6. Conductive cup; 61. Conductive ring; 7. Air mixing tube; 71. Air inlet hole; 72. Boost chamber; 73. Boost plate; 74. Sealing ring; 75. Filter; 76. Rubber tail cap. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0029] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are 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.

[0030] Example 1: Figures 1 to 3 As shown, an air outlet portion includes a lower cylinder 1 capable of flowing a large airflow and an upper cylinder 2 capable of flowing a small airflow. The lower cylinder 1 and the upper cylinder 2 are located on the same axis. At least two ridges 3 for conducting electricity are provided on the lower cylinder 1. All ridges 3 are distributed along the circumferential direction. The upper cylinder 2 is located between all ridges 3.

[0031] In this embodiment, the rib 3 is located on the upper end surface of the lower barrel 1, and the lower end surface of the rib 3 is fixedly connected to the upper end surface of the lower barrel 1. The height of the upper end surface of the rib 3 is flush with the height of the upper end surface of the upper barrel 2. Furthermore, the rib 3 and the lower barrel 1 are integrally formed, which helps to simplify the processing, reduce production costs, and improve production efficiency.

[0032] In this embodiment, there are preferably 2 or 4 ridges 3, all of which are evenly spaced in the circumferential direction and extend in the vertical direction. The design of this structure has little effect on the flow and diffusion direction of the mixed gas, and helps to ensure that a full flame is formed after the mixed gas is ignited.

[0033] In this embodiment, a gap is left between the lower cylinder 1 and the upper cylinder 2, forming a lateral flow channel. The ridges 3 divide the flow channel into a plurality of side holes 4, through which the combustion-supporting mixed gas flows into the insulating cup 5. In this solution, the ridges 3 not only serve to conduct electricity but also serve to connect the lower cylinder 1 and the upper cylinder 2.

[0034] It should be noted that after the ridge 3 for conducting electricity is provided on the lower cylinder 1, the existing conducting cup 6 can be eliminated (see Figure 7 ) of the inner section, when power is applied, the ridge 3 cooperates with the conductive cup 6 to produce sparks for ignition.

[0035] Example 2: Figure 1 As shown, the rest of the parts are the same as those in the first embodiment, except that the inner side of the rib 3 is fixedly connected to the outer side of the upper cylinder 2. Furthermore, the lower cylinder 1, rib 3 and upper cylinder 2 are integrally formed, which helps to further simplify the processing technology, reduce production costs and improve production efficiency.

[0036] Example 3: Figure 4 As shown, the rest of the parts are the same as those in Example 1, except that the inner side surface of the ridge 3 abuts against the outer side surface of the upper cylinder 2. In this structure, the ridge 3 and the upper cylinder 2 are separately provided. During processing, the upper cylinder 2 is inserted between all the ridges 3 and then clamped by all the ridges 3. The processing technology is also relatively simple.

[0037] In this embodiment, the lower end face of the upper cylinder 2 is provided with an inclined guide surface 21 which is inclined from the inside to the outside and upward. The setting of the inclined guide surface 21 helps the staff to quickly insert the upper cylinder 2 between all the ridges 3, which helps to improve the assembly efficiency. At the same time, the inclined guide surface 21 also has a certain guiding function, which is used to guide the mixed gas to flow and diffuse obliquely upward.

[0038] Example 4: Figure 1 and Figure 2 As shown, the rest of the parts are the same as those in Example 1, except that the outer side of the upper end surface of the ridge 3 is recessed downward to form a step surface 31. When the mixed gas flows upward along the ridge 3 to the top of the step surface 31, it can diffuse laterally directly above the step surface 31, reducing the effect of the ridge 3 on the diffusion of the mixed gas, ensuring that the mixed gas in this part can fill the insulation cup 5 more evenly, which helps to improve the ignition rate.

[0039] In this embodiment, the step surface 31 is arranged to be inclined.

[0040] Example 5: Figure 5 and Figure 6 As shown, the rest of the parts are the same as those in the first embodiment, except that the height of the upper end surface of the ridge 3 is higher or lower than the height of the upper end surface of the upper cylinder 2.

[0041] See also Figure 5 When the height of the upper end surface of the ridge 3 is higher than the height of the upper end surface of the upper cylinder 2, it helps to shorten the ignition distance and thus improve the ignition rate, but the material cost is increased.

[0042] See also Figure 6 When the height of the upper end surface of the ridge 3 is lower than the height of the upper end surface of the upper cylinder 2, it helps to reduce material costs, but will extend the ignition distance.

[0043] Therefore, the height of the upper end surface of the ridge 3 is higher, equal to or lower than the height of the upper end surface of the upper cylinder 2 according to the actual situation of the lighter. Under the premise of ensuring the ignition rate, the height of the ridge 3 can be flexibly set.

[0044] Example 6: Figure 2 and Figure 3 As shown, the rest of the parts are the same as those in Example 1, except that the inner diameter of the lower cylinder 1 is greater than or equal to the outer diameter of the upper cylinder 2, which facilitates one-time stamping of the lower cylinder 1, the ridge 3 and the upper cylinder 2 by a Haversian die, without the need for secondary processing of the side hole 4, thus simplifying the processing technology and improving the processing efficiency, while helping to improve the consistency of the output gas outlet.

[0045] Of course, the inner diameter of the lower cylinder 1 can also be smaller than the outer diameter of the upper cylinder 2. The lower cylinder 1, the ridge 3 and the upper cylinder 2 can be stamped out at one time by a modified Haversian die, or can be obtained by secondary processing.

[0046] Example 7: Figure 1 and Figure 7As shown, a lighter air outlet structure includes an insulating cup 5, a conductive cup 6, an air mixing tube 7 and any one of the air outlet parts of Examples 1 to 6. The bottom of the insulating cup 5 is provided with a mounting hole 51, the conductive cup 6 is sleeved on the outside of the insulating cup 5, the lower part of the lower cylinder 1 is penetrated by the mounting hole 51 and is connected to the upper part of the air mixing tube 7, the upper part of the lower cylinder 1, the upper cylinder 2 and the ridge 3 are all located in the insulating cup 5, and the distance between the ridge 3 and the conductive cup 6 is within the ignition distance range. An air inlet hole 71 is provided in the middle of the air mixing tube 7, and a boosting cavity 72 is provided at the lower part of the air mixing tube 7. A boosting plate 73, a sealing ring 74, a filter screen 75 and a rubber tail cap 76 are sequentially provided in the boosting cavity 72 from top to bottom. Conventionally, the insulating cup 5 is a porcelain cup, and the conductive cup 6 is an iron cup. The upper end of the iron cup is provided with a conductive ring 61 extending to the upper end surface of the insulating cup 5. The distance between the ridge 3 and the conductive ring 61 is within the ignition distance range.

[0047] In this embodiment, a positioning ring 11 is fixedly provided on the outer side of the lower cylinder 1 , and the positioning ring 11 abuts against the inner bottom surface of the heat-insulating cup 5 . Preferably, the positioning ring 11 and the lower cylinder 1 are integrally formed.

[0048] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. An air outlet, characterized in that The invention comprises a lower cylinder (1) capable of flowing a large airflow and an upper cylinder (2) capable of flowing a small airflow, wherein the lower cylinder (1) is provided with at least two ridges (3) for conducting electricity, all of the ridges (3) are distributed along the circumferential direction, and the upper cylinder (2) is located between all of the ridges (3).

2. The air outlet according to claim 1, characterized in that The lower end surface of the ridge (3) is fixedly connected to the upper end surface of the lower cylinder (1).

3. The air outlet according to claim 2, characterized in that The ridge (3) and the lower cylinder (1) are integrally formed.

4. The air outlet according to claim 1, characterized in that The inner side surface of the ridge (3) is fixedly connected to or abuts against the outer side surface of the upper cylinder (2).

5. The air outlet according to claim 4, characterized in that The lower cylinder (1), the ridge (3) and the upper cylinder (2) are integrally formed.

6. The air outlet according to claim 1, characterized in that A gap is left between the lower cylinder (1) and the upper cylinder (2) to form a lateral flow diversion channel, and all the ridges (3) divide the flow diversion channel into a plurality of side holes (4).

7. The air outlet according to claim 1, characterized in that The outer side of the upper end surface of the ridge (3) is recessed downward to form a step surface (31).

8. The air outlet according to claim 1, characterized in that The height of the upper end surface of the ridge (3) is higher than, equal to, or lower than the height of the upper end surface of the upper cylinder (2).

9. The air outlet portion according to claim 1, characterized in that The inner diameter of the lower cylinder (1) is greater than, equal to, or smaller than the outer diameter of the upper cylinder (2).

10. A lighter gas outlet structure, comprising a heat-insulating cup (5) and a conductive cup (6), wherein the bottom of the heat-insulating cup (5) is provided with a mounting hole (51), and the conductive cup (6) is sleeved on the outside of the heat-insulating cup (5), characterized in that It also includes the air outlet portion according to any one of claims 1 to 9, wherein the lower portion of the lower cylinder (1) is provided with the mounting hole (51), the upper portion of the lower cylinder (1), the upper cylinder (2), and the ridge (3) are all located within the heat-insulating cup (5), and the distance between the ridge (3) and the conductive cup (6) is within the ignition distance range.

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