Dual-mode lighter capable of switching ignition modes conveniently

By setting an integrated gas supply channel inside the lighter housing and using a switching button to seal the open flame channel and the windproof flame channel, the problems of gas leakage and complex assembly in the existing technology are solved, and convenient dual-mode ignition switching and production efficiency are achieved.

CN120907165APending Publication Date: 2025-11-07王军伟
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Patent Information

Application Number
CN202511119584.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-11
Publication Date
2025-11-07

AI Technical Summary

Technical Problem

Existing dual-mode lighters pose a risk of gas leakage when switching flame modes, have complex structures, high production costs, and are difficult to assemble.

Method used

An integrated gas supply channel is set inside the lighter casing. The open flame channel and the windproof flame channel can be blocked by switching button, which simplifies the gas supply structure, reduces assembly difficulty and improves production efficiency.

Benefits of technology

It enables convenient switching between dual-mode ignition, reduces the risk of gas leakage, simplifies the assembly process, and lowers production costs and defect rates.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a dual-mode lighter convenient for switching ignition modes, and relates to the technical field of lighter equipment. A direct punching groove is axially formed in one side of the middle of the lighter body, a direct punching rectifier is installed in the direct punching groove in a sealed mode, an open fire gas supply channel is arranged on the outer side of the direct punching groove, a switching button groove is formed in the bottom of the open fire gas supply channel, a switching button is arranged in the switching button groove, and the open fire gas supply channel communicates with the switching button groove. A gas cavity is formed in the middle of the lighter body, the side, away from the switching button groove, of the gas cavity axially extends to form a gas adjusting groove, a gas guide groove is formed in one side of the upper middle portion of the gas adjusting groove and communicates with the switching button groove, and a direct gas inlet groove is formed in the bottom of the open fire gas supply channel and communicates with the gas guide groove. The switching button is used for blocking the open fire channel and the windproof flame channel, switching of dual-mode ignition is conveniently achieved, meanwhile, the overall gas supply structure is simplified, the assembly difficulty is reduced, and the production and assembly efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to a dual-mode lighter that facilitates switching between modes, and relates to the technical field of lighter devices. BACKGROUND

[0002] Lighters are commonly used in daily life to provide a source of ignition. Conventional lighters use a flint or electric arc to generate a flame. However, such lighters have a short flame that is easily extinguished. In order to provide a flame in windy conditions, windproof lighters are often used.

[0003] Ordinary open flames and windproof flames have their own advantages and disadvantages. Therefore, existing technology uses lighters that can switch between modes. For example, a dual-flame lighter is disclosed in patent CN221944271U. The dual-flame lighter includes a positioning seat and a switching switch. The positioning seat is fixedly arranged in a housing. The positioning seat has two positioning plates arranged in front and back. The two positioning plates have positioning holes formed thereon. A first gas pipe passes through the two positioning holes. The switching switch includes a rocker arm, a pressing block, and a first elastic member. The rocker arm is rotatably arranged on the outer wall of the housing. One end of the pressing block is connected with the rocker arm, and the other end is arranged between the two positioning plates. The pressing block has a first position for pressing the first gas pipe and a second position for separating from the first gas pipe. The first elastic member is used to keep the pressing block in the second position. In this way, the first gas pipe is reliably positioned and installed by the positioning seat. The switching switch adopts a rotary lever structure. The rocker arm can easily press the pressing block to press the first gas pipe. After the rocker arm is released, the first elastic member quickly drives the pressing block away from the first gas pipe. This structure is simple and stable, easy to operate, and convenient to use. However, the above-mentioned solution requires a gas pipe for gas delivery. If the gas pipe is not properly installed, it may cause gas leakage. In addition, the structure for switching the flame is controlled by pressing the gas pipe to control the gas output. However, this structure requires a high-quality gas pipe. If the gas pipe is damaged during use, there is a risk of gas leakage, which is not safe. Moreover, the overall structure is complex, and the production cost is high. Therefore, a dual-mode lighter that facilitates switching between modes is proposed to solve the problems existing in the prior art. SUMMARY

[0004] The present application aims to solve the problems in the prior art by providing a dual-mode lighter that facilitates switching between modes. An integrated gas supply channel is arranged in the lighter housing. A switching button is used to block the open flame channel and the windproof flame channel. This facilitates switching between dual-mode ignition. Moreover, the overall gas supply structure is simplified, the assembly difficulty is reduced, and the production and assembly efficiency is improved.

[0005] In order to achieve the above object, the present application adopts the following technical scheme: it comprises a lighter main body 1, one side of the top of the lighter main body 1 is hingedly provided with a lighter cover 2, a straight jet slot 108 is axially arranged on one side of the middle of the lighter main body 1, a straight jet rectifier 10 is sealingly installed in the straight jet slot 108, an open fire gas supply channel 107 is arranged on the outside of the straight jet slot 108, a switching button slot 102 is arranged on the bottom of the open fire gas supply channel 107, a switching button 8 is arranged in the switching button slot 102, and the open fire gas supply channel 107 is in communication with the switching button slot 102, a gas cavity 103 is arranged in the middle of the lighter main body 1, the gas cavity 103 extends axially on the side away from the switching button slot 102 to form an air adjusting slot 109, a gas guide slot 105 is arranged on the upper side of the air adjusting slot 109 and is in communication with the switching button slot 102, and a straight jet air inlet slot 106 is arranged on the bottom of the open fire gas supply channel 107 and is in communication with the gas guide slot 105.

[0006] Further, the switching button 8 comprises a button 801, a button fixed seat 802, and a button plug 803, the button plug 803 is installed in the button fixed seat 802, the button 801 is threadedly connected with the button plug 803 from the outside of the button fixed seat 802, a first reset spring 804 is arranged on the button 801 and is connected with the inner wall of the button fixed seat 802, and the front end of the button plug 803 is matched with the communication section of the switching button slot 102 and the gas guide slot 105.

[0007] Further, the side in communication with the gas guide slot 105 of the switching button slot 102 is in a stepped structure, the inner diameter of the side away from the gas guide slot 105 is greater than that of the side connected with the gas guide slot 105, the narrow section is matched with the front end of the button plug 803, and the inner diameter of the narrow section is greater than that of the gas guide slot 105.

[0008] Further, a straight jet air inlet hole 1061 is formed in the side wall of the straight jet air inlet slot 106 and is in communication with the gas guide slot 105, and the diameter of the straight jet air inlet hole 1061 is smaller than that of the gas guide slot 105.

[0009] Further, a lighter middle frame 3 is detachably arranged on the top of the lighter main body 1, a fixed slot 302 with internal threads is arranged on the lighter middle frame 3 corresponding to the position of the straight jet rectifier 10 and is threadedly connected with the upper middle part of the straight jet rectifier 10, an open fire ignition slot 303 is arranged on the outside of the fixed slot 302 and is in communication with and sealingly matched with the open fire gas supply channel 107, and a fire block 11 is arranged in the open fire ignition slot 303.

[0010] Further, a top rod guide slot 301 with an inner side limiting guide rail 305 is further arranged on the lighter middle frame 3, a flint assembly 12 is arranged in the top rod guide slot 301, a flint top rod 4 is arranged above the flint assembly 12, and a segmented slide rail 401 is arranged on the bottom of the flint top rod 4 and is matched with the limiting guide rail 305 and radially moves to constrain the flint assembly 12.

[0011] Further, the side of the lighter frame 3 is axially provided with a limiting block slot 304, and a movable limiting block 14 is arranged in the limiting block slot 304.

[0012] Further, the air adjusting slot 109 is provided with an air adjusting assembly, which comprises an air adjusting rod 6 and an air adjusting inner needle 7. The air adjusting inner needle 7 is arranged in the air adjusting rod 6. A lower side wall of the air adjusting rod 6 is provided with a plurality of air inlet holes 601. The inner wall above the air inlet holes 601 is in the form of a converging opening. The inner diameter of the inner wall of the air adjusting rod 6 at the lower section of the air inlet holes 601 is greater than the inner diameter of the inner wall of the air adjusting rod 6 at the upper section of the air inlet holes 601. A plurality of air outlet holes 602 are arranged at the upper section of the air adjusting rod 6. The air outlet holes 602 are spaced apart from the air adjusting slot 109. The air adjusting slot 109 is provided with a communication hole 104 on the side wall at the position corresponding to the air outlet holes 602, and the communication hole 104 is in communication with a gas guiding slot 105. The air adjusting slot 109 is further provided with an air adjusting knob 15.

[0013] Further, the air adjusting inner needle 7 comprises an adjusting seat 701, a needle body 702 and a linkage top rod 703. The adjusting seat 701 is threadedly connected to the bottom of the air adjusting rod 6 in a sealed manner. A plurality of adjusting air inlet holes 706 are arranged on the adjusting seat 701 close to the lower section of the thread. The adjusting air inlet holes 706 are spaced apart from the air inlet holes 601. The outer diameter of the lower section of the adjusting seat 701 at the adjusting air inlet holes 706 matches the inner diameter of the inner wall of the air adjusting rod 6 at the upper section of the air inlet holes 601. The bottom of the needle body 702 is telescopically connected to the top of the adjusting seat 701 in a spaced apart manner. The needle body 702 is also spaced apart from the inner wall of the air adjusting rod 6 to form a gas supply channel. A sealing needle 704 is arranged on the top of the needle body 702. A needle cooperation slot 7031 is arranged on the bottom of the linkage top rod 703, and the needle cooperation slot 7031 cooperates with the sealing needle 704. The gas supply channel extends to the position of the sealing needle 704. The linkage top rod 703 cooperates with the inner wall of the air adjusting rod 6 to control the restriction. A second return spring 705 is further arranged on the linkage top rod 703. The top of the second return spring 705 abuts against the inner wall of the air adjusting rod 6. The bottom of the second return spring 705 is connected to the linkage top rod 703. The bottom of the adjusting seat 701 is connected to the air adjusting knob 15.

[0014] Further, the side of the lighter body 1 is provided with a dial groove 101, a hand dial 5 is arranged in the dial groove 101, the bottom of the hand dial 5 is constrained through the dial groove 101, the top is movably connected with the lighter middle frame 3, and a friction wheel 501 is arranged on the top of the hand dial 5 and matched with the flint assembly 12, one side of the bottom of the lighter cover 2 is provided with a hinge block 201 and hinged with the lighter body 1, and the hinge block 201 is a semicircular structure, a top block 13 is further hinged on the hinge block 201, the top block 13 is hinged with the top of the connecting top rod 703, the side of the top block 13 away from the hinge block 201 extends outward to form a clamping plate structure and is overlapped with the top of the lighter body 1, an air inlet groove 110 is arranged below the dial groove 101, the air inlet groove 110 is communicated with the air cavity 103 through a communication groove 112, and the bottom of the air inlet groove 110 is sealingly provided with an air inlet inner needle 9, and the air inlet inner needle 9 is threadedly connected with an air inlet cover 16.

[0015] After the above technical scheme is adopted, the present application has the beneficial effects that: by arranging an integrated air supply channel in the lighter shell, the open fire channel and the windproof fire channel are blocked by the switching button, the switching of the double-mode ignition is conveniently realized, the overall air supply structure is simplified, the assembly difficulty is reduced, and the production and assembly efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative labor.

[0017] Figure 1 is a structural schematic diagram of the present application;

[0018] Figure 2 is a second angle view of Figure 1 ;

[0019] Figure 3 is a schematic diagram of the present application without the lighter cover 2;

[0020] Figure 4 is a second angle view of Figure 3 ;

[0021] Figure 5 is a structural schematic diagram of the lighter middle frame 3 in the present application;

[0022] Figure 6 is an A-A direction sectional view of Figure 2 ;

[0023] Figure 7 is a B-B direction sectional view of Figure 2 ;

[0024] Figure 8 is a schematic diagram of the explosion structure of the present application.

[0025] Explanation of reference numerals: lighter body 1, lighter cover 2, lighter middle frame 3, flint top rod 4, ignition hand dial 5, air adjusting rod 6, air adjusting inner needle 7, switch button 8, air inlet inner needle 9, straight rush rectifier 10, fire block 11, flint assembly 12, top block 13, limiting block 14, air adjusting knob 15, air inlet cover 16, dial slot 101, switch button slot 102, air cavity 103, communication hole 104, air guide slot 105, straight rush air inlet slot 106, open fire air supply channel 107, straight rush slot 108, air adjusting slot 109, air inlet slot 110, top rod guide slot 301, fixed slot 302, open fire ignition slot 303, limiting block slot 304, limiting guide rail 305, slide rail 401, friction wheel 501, air inlet hole 601, air outlet hole 602, adjusting seat 701, needle body 702, linked top rod 703, sealing top needle 704, second return spring 705, adjusting air inlet hole 706, button 801, button fixed seat 802, button plug 803, first return spring 804, straight rush air inlet hole 1061, top needle matching slot 7031. DETAILED DESCRIPTION

[0026] Reference Figures 1-8The technical scheme adopted in the embodiment is shown as follows: a lighter body 1 is provided with a lighter cover 2 hingedly arranged on one side of the top of the lighter body 1, a straight jetting groove 108 is axially arranged on one side of the middle of the lighter body 1, a straight jetting rectifier 10 is sealingly installed in the straight jetting groove 108, an open fire gas supply channel 107 is arranged on the outside of the straight jetting groove 108, a switching button groove 102 is arranged at the bottom of the open fire gas supply channel 107, a switching button 8 is arranged in the switching button groove 102, the open fire gas supply channel 107 is in communication with the switching button groove 102, a gas cavity 103 is arranged in the middle of the lighter body 1, the gas cavity 103 extends axially on the side away from the switching button groove 102 to form a gas adjusting groove 109, a gas guiding groove 105 is arranged on one side of the upper part of the gas adjusting groove 109 and is in communication with the switching button groove 102, and a straight jetting air inlet groove 106 is arranged at the bottom of the open fire gas supply channel 107 and is in communication with the gas guiding groove 105. In a conventional double-mode switchable lighter, a gas supply channel is usually arranged in a pipeline connection mode, and a button is pressed to control the switching of combustible gas between an open fire channel and a straight jetting flame pipeline. However, the pipeline is frequently pressed and is at risk of being damaged, which may cause leakage of combustible gas. In addition, improper assembly may also cause leakage and increase assembly difficulty and production cost. Therefore, in the embodiment, a gas guiding groove is arranged in the lighter body as a main gas supply channel, the gas guiding groove is in communication with the switching button groove, the open fire gas supply channel and the gas adjusting groove. When the switching button is pressed, the gas guiding groove is blocked in the switching button groove, so that the combustible gas enters the open fire gas supply channel and the straight jetting rectifier emits a straight jetting windproof flame. When the switching button is released, the next use can directly use the open fire. The use of the lighter does not cause hard wear of components, so the service life is longer. The overall gas channel can be realized by an integrated gas channel, without the need for pipeline connection, which reduces the number of components, assembly process, defective product rate and production cost.

[0027] More specifically, the switching button 8 includes a button 801, a button fixed seat 802 and a button plug 803. The button plug 803 is installed in the button fixed seat 802, the button 801 is threadedly connected to the button plug 803 from the outside of the button fixed seat 802, the first reset spring 804 is arranged on the button 801 and connected to the inner wall of the button fixed seat 802, and the front end of the button plug 803 is matched with the communication section of the switching button groove 102 to the gas guiding groove 105. In the embodiment, the switching button is a three-section structure, the button fixed seat is a fixed and limiting structure, the button drives the button plug to move in the switching button groove, the gas channels of the open fire gas supply channel and the straight jetting groove are switched, and the first reset spring is used to reset the button. The structure is simple and convenient to use.

[0028] More specifically, the switching button slot 102 is connected with the air guide slot 105, and the side away from the air guide slot 105 has a larger inner diameter than the side connected with the air guide slot 105. The narrow section is matched with the front end of the button plug 803, and the inner diameter of the narrow section is larger than the inner diameter of the air guide slot 105. The end of the button plug is pushed into the narrow section of the step, and the end of the button plug is in close contact with the narrow section of the step. At the same time, the end plane blocks the hole connecting the air guide slot and the narrow section. At this time, since the straight-in air inlet slot is still in a connected state, the combustible gas will enter the straight-in air inlet slot, and will not enter the switching button slot, thereby realizing the ventilation and plugging of the open flame gas supply channel.

[0029] More specifically, the straight-in air inlet slot 106 is provided with a straight-in air inlet hole 1061 connected with the air guide slot 105, and the diameter of the straight-in air inlet hole 1061 is smaller than the inner diameter of the air guide slot 105. In this embodiment, in order to supply high-pressure gas flow to the straight-in rectifier, the straight-in air inlet hole is set as a small hole, and the diameter of the straight-in air inlet hole is smaller than the inner diameter of the air guide slot and the communication diameter of the switching button slot and the air guide slot. Therefore, when the open flame gas supply channel is ventilated, the combustible gas will enter the switching button slot first, and will not enter the straight-in air inlet slot. After the switching button slot is plugged, the straight-in air inlet hole becomes a pressure relief hole, and the combustible gas will enter the straight-in air inlet slot at a high pressure, thereby realizing straight-in ignition.

[0030] More specifically, the lighter main body 1 is detachably provided with a lighter middle frame 3 at the top. The lighter middle frame 3 is provided with an inner threaded fixing groove 302 corresponding to the position of the straight-in rectifier 10, and the straight-in rectifier 10 is connected with the upper part of the straight-in rectifier 10. The outer side of the fixing groove 302 is provided with an open flame ignition slot 303 connected with and sealed with the open flame gas supply channel 107. The open flame ignition slot 303 is provided with a fire block 11. In this embodiment, the upper part of the straight-in rectifier is provided with an outer thread connected with the thread of the lighter middle frame, and the lighter main body is provided with a sink groove at the top of the open flame gas supply channel, and is provided with a sealing ring and a sealed connection with the lighter middle frame, thereby ensuring that the combustible gas will not leak when entering the open flame ignition slot, and ensuring the ignition effect.

[0031] More specifically, the fire machine frame 3 is further provided with a top rod guide groove 301 with a limiting guide rail 305 on the inner side, a flint assembly 12 is arranged in the top rod guide groove 301, a flint top rod 4 is arranged above the flint assembly 12, and a segmented slide rail 401 is arranged at the bottom of the flint top rod 4 to cooperate with the limiting guide rail 305 and constrain the radial movement of the flint assembly 12. In this embodiment, the flint assembly is arranged in the top rod guide groove of the fire machine frame, and is composed of a spring and a flint, and is constrained and limited by the flint top rod. The flint top rod is a movable part, the segmented slide rail has a two-segment structure, and the limiting guide rail also has a two-segment structure. Corresponding to the two-segment structure of the segmented slide rail, the segmented slide rail is clamped into the lower part of the limiting guide rail, so that the flint top rod and the fire machine frame can be slidably connected through the segmented slide rail and the top rod guide groove. Meanwhile, the fire machine frame 3 is axially provided with a limiting block groove 304 on the side, and a movable limiting block 14 is arranged in the limiting block groove 304. The limiting block can move up and down in the limiting block groove. When moving up, the limiting block is clamped in the gap of the segmented slide rail to constrain the radial movement of the flint top rod. When replacing the flint, the limiting block is pressed down to release the constraint of the flint top rod, so that the flint top rod can be moved radially and withdrawn, and the flint can be replaced.

[0032] More specifically, the air adjusting groove 109 is provided with an air adjusting assembly, which includes an air adjusting rod 6 and an air adjusting inner needle 7. The air adjusting inner needle 7 is arranged in the air adjusting rod 6. A plurality of air inlet holes 601 are arranged on the lower side wall of the air adjusting rod 6. The inner wall above the air inlet holes 601 is a converging opening, so that the inner diameter of the lower section of the air adjusting rod 6 is larger than that of the upper section of the air adjusting rod 6. A plurality of air outlet holes 602 are arranged on the upper section of the air adjusting rod 6. The air outlet holes 602 are spaced apart from the air adjusting groove 109. The air adjusting groove 109 is provided with a communication hole 104 on the side wall at the position corresponding to the air outlet holes 602, and the communication hole 104 is connected with a gas guide groove 105. The air adjusting groove 109 is further provided with an air adjusting knob 15. In this embodiment, the air adjusting mechanism is composed of the air adjusting rod and the air adjusting inner needle. The air adjusting rod has a hollow structure, and the air adjusting inner needle is arranged in the air adjusting rod. The air adjusting rod is provided with air outlet holes on the upper section and air inlet holes on the lower section. The inner part of the air adjusting rod has a non-uniform hole diameter. The upper part of the air inlet holes is processed into a narrow opening, forming a structure with a wide bottom, a narrow middle part, and a wide upper part. This structure facilitates air inlet at the bottom, and constrains the air adjusting inner needle at the middle and upper parts. In addition, the air adjusting groove is provided with a communication hole connected with the gas guide groove. When the air adjusting inner needle is pulled up, the combustible gas in the air cavity can enter the gas guide groove through the communication hole, realizing gas supply. When the air adjusting inner needle is lowered and reset, the communication hole is disconnected from the air cavity, and gas supply is not possible. The size of the gas amount is realized by the air adjusting knob.

[0033] More specifically, the regulating inner needle 7 includes a regulating seat 701, a needle body 702, and a connecting top rod 703. The regulating seat 701 is threadedly connected to the bottom of the regulating rod 6 and is sealingly connected. The regulating seat 701 is provided with a plurality of regulating air inlet holes 706 below the thread. The regulating air inlet holes 706 are spaced from the air inlet holes 601. The outer diameter of the lower part of the regulating seat 701 at the regulating air inlet holes 706 matches the inner diameter of the inner wall of the upper part of the regulating rod 6 at the air inlet holes 601. The bottom of the needle body 702 is sleeved with the top of the regulating seat 701 with a gap therebetween. The needle body 702 and the inner wall of the regulating rod 6 also have a gap to form an air supply channel. The top of the needle body 702 is provided with a sealing needle 704. The bottom of the connecting top rod 703 is provided with a needle cooperation groove 7031 which cooperates with the sealing needle 704. The air supply channel extends to the sealing needle 704. The connecting top rod 703 is constrained and controlled by cooperating with the inner wall of the regulating rod 6. The connecting top rod 703 is further provided with a second reset spring 705. The top of the second reset spring 705 abuts against the inner wall of the regulating rod 6. The bottom of the second reset spring 705 is connected with the connecting top rod 703. The bottom of the regulating seat 701 is connected with the regulating knob 15. The regulating inner needle is a multi-section structure. The upper part is a lifting structure and is a movable piece for controlling the on-off of air. The connecting top rod cooperates with the sealing needle at the top of the needle body. The top of the needle body is a narrow-mouthed cylindrical structure. The connecting top rod can be sleeved in the narrow-mouthed cylindrical structure to seal the combustible gas. The connecting top rod can be expanded by inserting the sealing needle into the needle cooperation groove to ensure the sealing effect. When there is no air, the combustible gas fills the regulating groove. Only when the connecting top rod is pulled up and separated from the sealing needle, the combustible gas can enter the upper part of the needle body and enter the air guide groove through the air outlet hole for air supply. Conversely, after the connecting top rod is reset, the sealing needle and the needle body are resealed to cut off the supply of combustible gas.

[0034] More specifically, the lighter body 1 side is provided with a dial slot 101, dial slot 101 is provided with a hand dial 5, the bottom of the hand dial 5 is constrained by the dial slot 101, the top is movably connected with the lighter middle frame 3, and a friction wheel 501 is arranged on the top of the hand dial 5 to cooperate with the flint assembly 12. When igniting, rotating the hand dial can drive the friction wheel to rub with the flint to ignite. The bottom of the lighter cover 2 is provided with a hinge block 201 which is hingedly connected with the lighter body 1, and the hinge block 201 is a semicircular structure, and a top block 13 is further hingedly connected with the hinge block 201. The top block 13 is hingedly connected with the top of the linkage top rod 703, and the top block 13 extends outward from the side away from the hinge block 201 to form a clamping plate structure which is overlapped with the top of the lighter body 1. In this embodiment, when the lighter cover is opened, the hinge block drives the top block to move upward, and the clamping plate still abuts against the lighter body. The top block is hingedly connected with the linkage top rod, and when it moves upward, it drives the linkage top rod to move upward, thereby realizing ventilation. When the lighter cover is closed, the second reset spring drives the top block to move back instantaneously, thereby ensuring the sealing effect of the needle body. The dial slot 101 is provided below with an air inlet slot 110 which is connected with the air cavity 103 through a communication slot 112, and the bottom of the air inlet slot 110 is provided with an air inlet inner needle 9. The air inlet inner needle 9 is threadedly connected with an air inlet cover 16 below. The air inlet cover is used to protect the lighter when it is not inflated, and the air inlet cover can be rotated out to inflate the lighter.

[0035] The working principle of this invention is as follows: Before use, the gas cylinder is used to press against the inner gas inlet needle 9 by unscrewing the gas inlet cap 16. The gas enters the gas chamber 103 and enters the gas regulating groove 109 through the gas inlet hole 601, filling the bottom space of the sealing pin 704. When ignition is required, the lighter cover 2 is opened, the hinge block 201 rotates, and the top block 13 is lifted upwards. The top block 13 drives the connecting rod 703 upwards, separating it from the sealing pin 704. After the connecting rod 703 separates from the inner wall of the mating part of the gas regulating rod 6, the combustible gas rises from around the sealing pin 704, is discharged from the gas outlet hole 602, and enters the guide through the connecting hole 104. When the switching button 8 is not pressed, combustible gas enters the larger-diameter switching button slot 102 within the gas trough 105 and then enters the open flame gas supply channel 107, eventually escaping from the open flame ignition slot 303. At this time, turning the ignition handwheel 5 causes the friction wheel 501 to rub against the flint assembly 12, thus achieving open flame ignition. When a windproof flame is needed, pressing the button 801 causes the button plug 803 to block the connection with the gas trough 105. Combustible gas can only ascend through the small-diameter direct-flow inlet 1061 into the direct-flow inlet slot 106, forming a high-pressure airflow that is ejected from the direct-flow rectifier 10. The remaining embers can ignite the ejected combustible gas, achieving direct flame ignition. At this point, the combustible gas in the open flame gas supply channel 107 has burned out. Therefore, after the ignition operation is completed, releasing button 801 will no longer produce a flame. Covering the igniter cover 2 will cause the linkage rod 703 to reset under the action of the second reset spring 705 and re-engage with the sealing pin 704 to seal the combustible gas in the gas regulating groove 109. When it is necessary to adjust the gas output, rotating the gas regulating knob 15 will drive the regulating seat 701 to rotate. Under the action of the threaded engagement, the regulating seat 701 can be raised and lowered. When rising, the regulating air inlet 706 moves upward, and the regulating seat 701... As the air intake 706 gradually approaches the inner wall of the regulating rod 6, when the regulating air intake 706 moves upward above the air intake 601, the wall of the regulating seat 701 at the bottom of the regulating air intake 706 begins to block the air intake 601, reducing the amount of combustible gas entering the regulating air intake 706, thus reducing the overall gas output. When the regulating seat 701 moves downward, the obstruction of the air intake 601 decreases until it is completely unobstructed, at which point the maximum gas output can be obtained. By setting several interconnected gas supply channels in the lighter body 1, the flow of combustible gas can be realized, which greatly optimizes the overall structure, reduces the difficulty of production and assembly, and allows for convenient switching between different flames.

[0036] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A dual mode lighter for facilitating switching between modes of ignition, the lighter comprising: It includes the lighter body (1), the lighter body (1) top side hinge is provided with lighter cover (2), lighter body (1) middle side is provided with straight flush slot (108) axially, straight flush slot (108) inside sealing installation has straight flush rectifier (10), straight flush slot (108) outside is provided with open fire gas supply channel (107), open fire gas supply channel (107) bottom is provided with switch button slot (102), switch button slot (102) inside is provided with switch button (8), and open fire gas supply channel (107) and switch button slot (102) are communicated, lighter body (1) middle part is provided with air cavity (103), air cavity (103) is formed in the air adjusting groove (109) axially away from switch button slot (102) side, air adjusting groove (109) middle upper side is provided with air guide groove (105) and switch button slot (102) are communicated, and open fire gas supply channel (107) bottom is provided with straight flush air inlet groove (106) and air guide groove (105) are communicated.

2. A dual mode lighter for facilitating switching between modes of ignition as defined in claim 1, characterized in that: The switch button (8) includes a button (801), a button fixed seat (802), and a button plug (803), the button plug (803) is installed in the button fixed seat (802), the button (801) is threadedly connected with the button plug (803) from the outside of the button fixed seat (802), and a first reset spring (804) is arranged on the button (801) and connected with the inner wall of the button fixed seat (802), the front end of the button plug (803) is matched with the communication section of the switch button slot (102) to the air guide groove (105).

3. A dual mode lighter for facilitating switching between modes of ignition as defined in claim 1, wherein: The switch button slot (102) and the air guide groove (105) are in communication with the side of the stepped structure, the inner diameter of the side away from the air guide groove (105) is greater than the inner diameter of the side connected with the air guide groove (105), the narrow section is matched with the front end of the button plug (803), and the inner diameter of the narrow section is greater than the inner diameter of the air guide groove (105).

4. The dual mode lighter of claim 1, wherein: The straight flush air inlet groove (106) is provided with a straight flush air inlet hole (1061) in the side wall and is communicated with the air guide groove (105), and the hole diameter of the straight flush air inlet hole (1061) is smaller than the inner diameter of the air guide groove (105).

5. The dual mode lighter of claim 1, wherein: The lighter body (1) is detachably provided with a lighter middle frame (3), the lighter middle frame (3) is provided with a threaded fixing groove (302) corresponding to the position of the straight flush rectifier (10), the straight flush rectifier (10) is threadedly connected with the middle upper part of the fixing groove (302), the outer side of the fixing groove (302) is provided with an open fire ignition groove (303) which is communicated with and sealingly matched with the open fire gas supply channel (107), and the open fire ignition groove (303) is provided with a fire block (11).

6. A dual mode lighter for facilitating switching between modes of ignition as defined in claim 5, wherein: The lighter middle frame (3) is further provided with a top rod guide groove (301) with a limit guide rail (305) on the inner side, the top rod guide groove (301) is provided with a flint assembly (12), the flint assembly (12) is provided with a flint top rod (4) above, and the flint top rod (4) is provided with a sectional slide rail (401) at the bottom which is matched with the limit guide rail (305) and radially moves to constrain the flint assembly (12).

7. A dual mode lighter for facilitating switching between modes of ignition as defined in claim 5, wherein: The lighter middle frame (3) is axially provided with a limit block groove (304) on the side, and the limit block groove (304) is provided with a movable limit block (14).

8. A dual mode lighter for facilitating switching between modes of ignition as defined in claim 1, wherein: The air adjusting groove (109) is internally provided with an air adjusting assembly, which comprises an air adjusting rod (6) and an air adjusting inner needle (7), the air adjusting inner needle (7) is arranged in the air adjusting rod (6), a plurality of air inlet holes (601) are arranged on the lower side wall of the air adjusting rod (6), the inner wall above the air inlet holes (601) is in the form of a converging opening, so that the inner diameter of the inner wall of the lower section of the air adjusting rod (6) is greater than the inner diameter of the inner wall of the upper section of the air adjusting rod (6), a plurality of air outlet holes (602) are arranged on the upper section of the air adjusting rod (6), the air outlet holes (602) are in a gap with the air adjusting groove (109), the air adjusting groove (109) is provided with a communication hole (104) on the side wall at the position corresponding to the air outlet holes (602) and is in communication with a gas guiding groove (105), and the bottom of the air adjusting groove (109) is further provided with an air adjusting knob (15).

9. A dual mode lighter for facilitating switching between modes of ignition as defined in claim 8, wherein: The air adjusting inner needle (7) comprises an adjusting seat (701), a needle body (702) and a linkage top rod (703), the adjusting seat (701) is threadedly connected with the bottom of the air adjusting rod (6) and is in sealed connection, a plurality of adjusting air inlet holes (706) are arranged on the adjusting seat (701) close to the lower section thereof, the adjusting air inlet holes (706) are in a gap with the air inlet holes (601), the outer diameter of the lower section of the adjusting seat (701) at the adjusting air inlet holes (706) matches the inner diameter of the inner wall of the upper section of the air adjusting rod (6) at the air inlet holes (601), the bottom of the needle body (702) is telescopically connected with the top of the adjusting seat (701) and is in a gap, the needle body (702) is also in a gap with the inner wall of the air adjusting rod (6) to form a gas supply channel, a sealing thimble (704) is arranged on the top of the needle body (702), a thimble matching groove (7031) is arranged on the bottom of the linkage top rod (703) and is matched with the sealing thimble (704), the gas supply channel extends to the sealing thimble (704), the linkage top rod (703) is matched with the inner wall of the air adjusting rod (6) to be controlled and restricted, a second return spring (705) is further arranged on the linkage top rod (703), the top of the second return spring (705) abuts against the inner wall of the air adjusting rod (6), the bottom of the second return spring (705) is connected with the linkage top rod (703), and the bottom of the adjusting seat (701) is connected with the air adjusting knob (15).

10. The dual mode lighter of claim 1, wherein: The side of the lighter body (1) is provided with a dial groove (101), a hand dial (5) is arranged in the dial groove (101), the bottom of the hand dial (5) is constrained through the dial groove (101), the top is movably connected with a lighter middle frame (3), a friction wheel (501) is arranged on the top of the hand dial (5) and cooperates with a flint assembly (12), one side of the bottom of the lighter cover (2) is provided with a hinge block (201) and is hingedly connected with the lighter body (1), the hinge block (201) is a semicircular structure, a top block (13) is further hingedly connected on the hinge block (201), the top block (13) is hingedly connected with the top of a linkage top rod (703), the side, away from the hinge block (201), of the top block (13) extends outward to form a clamping plate structure and is overlapped with the top of the lighter body (1), an air inlet groove (110) is arranged below the dial groove (101), the air inlet groove (110) is communicated with an air cavity (103) through a communication groove (112), and the bottom of the air inlet groove (110) is sealingly provided with an air inlet inner needle (9), the air inlet inner needle (9) is threadedly connected with an air inlet cover (16) below.

Citation Information

Patent Citations

  • Double-fire lighter

    CN221944271U