Flame switching mechanism on double-flame lighter

Abstract

A flame switching mechanism on a double-flame lighter is characterized in that a liquid storage chamber is formed in a lighter body, a gas channel is formed in the upper portion of the liquid storage chamber, a lighter cover is hinged to the lighter body to form an opening and closing structure with the lighter body, and the lighter cover is controlled through linkage of a gas valve assembly arranged on the lighter body in the opening and closing process. The middle frame is provided with an open fire spray head and a direct fire spray head, the direct fire spray head is communicated with the gas channel all the time, the sideslip roller is arranged on one side of the machine body and comprises a rotatable pivot shaft and a roller sleeve, the pivot shaft is sleeved with the roller sleeve, and the roller sleeve can slide relative to the pivot shaft. The air valve rod is arranged between the machine body and the middle frame in a lifting manner, and the air valve rod realizes on-off control between the gas channel and the open fire nozzle through lifting; according to the lighter, the structure is simplified by reducing gas channels, so that the production cost of a single lighter is effectively controlled, and in addition, the flame switching operation is more direct and efficient.

Description

Technical Field

[0001] This utility model relates to a flame switching mechanism on a dual-flame lighter. Background Technology

[0002] A dual-flame lighter is a dual-purpose ignition device that can be ignited by either an open flame or a direct-injection flame. The prior patent application of the applicant, with authorization announcement number CN212719832U and titled "A Dual-Flame Langsheng Lighter," describes a design where a direct-injection flame gas channel 8 and an open-flame gas channel 9 are simultaneously formed on the body 1. Obviously, forming two gas channels on the body 1 requires machining two horizontal holes and sealing them with plugs. After sealing, the plugs and body are welded together to form a sealed whole, making the machining process quite inconvenient. In addition, the movement of the opening and closing valve core 18 to seal the open-flame gas channel 9 is also quite inconvenient in operation.

[0003] In summary, the applicant's dual-flame Langsheng lighter has drawbacks such as inconvenient flame switching and high manufacturing costs, and the product needs further improvement.

[0004] The prior art with reference to the scheme of CN211399855U entitled "Dual Flame Lighter" is one example; the prior art with reference to the scheme of CN222164869U entitled "Switching Mechanism and Lighter of Rotating Dual Flame Lighter Based on Grinding Wheel Drive" is another example. Summary of the Invention

[0005] To address the shortcomings mentioned above, this utility model provides a flame switching mechanism for a dual-flame lighter.

[0006] To achieve the above objectives, this utility model provides a flame switching mechanism for a dual-flame lighter, comprising:

[0007] The fuselage has a liquid storage chamber inside and a gas passage formed at the top of the liquid storage chamber;

[0008] The cover is hinged to the body to form an opening and closing structure. During the opening and closing process, the cover is controlled by the linkage of the air valve assembly configured on the body to realize the on / off control between the liquid storage chamber and the gas channel.

[0009] The middle frame is fixed to the machine body. The middle frame is equipped with an open flame nozzle and a direct flame nozzle. The direct flame nozzle is always in communication with the gas passage.

[0010] A side-sliding roller is disposed on one side of the machine body. The side-sliding roller includes a rotatable pivot shaft and a roller sleeve sleeve sleeved outside the pivot shaft and slidable relative to the pivot shaft. An ignition grinding wheel is disposed on the upper part of the pivot shaft.

[0011] A valve rod is provided, which can be raised and lowered between the machine body and the middle frame. The valve rod can control the opening and closing of the gas channel and the open flame nozzle by raising and lowering.

[0012] The valve stem includes a valve stem body, on which a main air hole is formed that runs vertically through the valve stem body. A shoulder is formed in the middle of the valve stem body. A flat shaft is formed at the upper end of the valve stem body, and a side air hole is formed at the position of the flat shaft. The side air hole communicates with the main air hole. The valve stem also includes sealing rings disposed at the upper and lower ends of the valve stem body and a sealing plug inserted into the upper end of the main air hole.

[0013] A spring, one end of which is supported on the lower surface of the middle frame and the other end of which is supported on the shoulder, so that the valve rod maintains a downward movement tendency;

[0014] A transmission component is movably disposed within the machine body, and the transmission component enables the air valve rod to form a transmission connection with the roller sleeve.

[0015] Furthermore, the gas valve assembly includes a valve seat fixedly mounted on the machine body, a movable valve core built into the valve seat, and a reset spring for resetting the movable valve core. When the movable valve core is pressed, the liquid storage chamber and the gas channel are connected.

[0016] Furthermore, the machine body is equipped with a linkage component, which controls the pressing of the movable valve core during the opening and closing of the cover.

[0017] Furthermore, a locking block is formed at the lower part of the pivot shaft, the cross-section of the locking block is a regular hexagon, and a locking groove matching the locking block is formed at the lower end of the roller sleeve. When the locking block is inserted into the locking groove, the roller sleeve and the pivot shaft rotate synchronously.

[0018] Furthermore, the transmission member has a through hole for the valve stem body to pass through, and the transmission member also has a hook head. When the transmission member is disposed below the shoulder by the through hole, the hook head hooks onto the upper surface of the roller sleeve.

[0019] Furthermore, a liquid filling valve is provided at the bottom of the fuselage, through which fuel can be added to the liquid storage chamber.

[0020] Furthermore, an ignition stone is provided inside the cover, and the ignition stone is always in contact with the ignition grinding wheel, so that ignition can be achieved when the ignition grinding wheel rotates.

[0021] The advantages of this utility model over the prior art are as follows:

[0022] The structure is simplified by reducing the number of gas channels, which effectively controls the production cost of a single lighter. In addition, the flame switching operation is more direct and efficient. Attached Figure Description

[0023] Figure 1 A three-dimensional view of the flame switching mechanism on the dual-flame lighter in question;

[0024] Figure 2 This is a mid-section view of the flame switching mechanism on the dual-flame lighter in question;

[0025] Figure 3 A 3D view of the flame switching mechanism on the dual-flame lighter in question (with the cover hidden).

[0026] Figure 4 This is a cross-sectional view (cut at the gas passage) of the flame switching mechanism on the dual-flame lighter in question.

[0027] Figure 5 This diagram shows the transmission connection between the side-sliding roller, transmission components, and valve stem.

[0028] Figure 6 for Figure 5 Exploded view;

[0029] Figure 7 for Figure 6 A sectional view.

[0030] In the diagram: 1. Machine cover; 2. Machine body; 21. Liquid storage chamber; 22. Gas passage; 3. Gas valve assembly; 31. Valve seat; 32. Movable valve core; 33. Return spring; 4. Linkage assembly; 5. Middle frame; 6. Open flame nozzle; 7. Direct jet nozzle; 8. Side sliding roller; 81. Pivot shaft; 811. Locking block; 82. Roller sleeve; 821. Locking groove; 9. Ignition grinding wheel; 10. Gas valve rod; 101. Valve rod body; 1011. Main air hole; 1012. Shoulder; 1013. Shaft flat square; 1014. Side air hole; 102. Sealing ring; 103. Sealing plug; 11. Spring; 12. Transmission component; 121. Through hole; 122. Hook; 13. Liquid filling valve. Detailed Implementation

[0031] like Figures 1-4As shown in the figure, a flame switching mechanism on a dual-flame lighter according to an embodiment of the present invention includes a liquid storage chamber 21 formed inside the body 2, and a gas channel 22 formed on the upper part of the liquid storage chamber 21; the cover 1 is hinged to the body 2 to form an opening and closing structure with the body 2, and the cover 1 is controlled by the linkage of the gas valve assembly 3 configured on the body 2 during the opening and closing process to realize the on / off control between the liquid storage chamber 21 and the gas channel 22; the gas valve assembly 3 includes a valve seat 31 fixedly installed on the body 2, a movable valve core 32 built into the valve seat 31, and a valve core 32 for moving the valve core 32. The return spring 33 resets the valve core 32. When the movable valve core 32 is pressed, the liquid storage chamber 21 and the gas channel 22 are connected. The body 2 is equipped with a linkage component 4. During the opening and closing of the cover 1, the movable valve core 32 is controlled by the linkage component 4. The gas valve component 3 and the linkage component 4 are existing technologies and their structures are not described in detail here. The middle frame 5 is fixed to the body 2. The middle frame 5 is equipped with an open flame nozzle 6 and a direct flame nozzle 7. The direct flame nozzle 7 is always connected to the gas channel 22. The side roller 8 is arranged on one side of the body 2.

[0032] like Figures 5-7 As shown, the side-sliding roller 8 includes a rotatable pivot shaft 81 and a roller sleeve 82 sleeved on the outside of the pivot shaft 81 and slidable relative to the pivot shaft 81. An ignition grinding wheel 9 is disposed on the upper part of the pivot shaft 81. A locking block 811 is formed on the lower part of the pivot shaft 81. The cross-section of the locking block 811 is a regular hexagon. A locking groove 821 matching the locking block 811 is formed at the lower end of the roller sleeve 82. When the locking block 811 is inserted into the locking groove 821, the roller sleeve 82 rotates synchronously with the pivot shaft 81. Thus, in normal use, by rubbing the roller sleeve 82 by hand, the ignition grinding wheel 9 on the upper part of the pivot shaft 81 can be rotated simultaneously to achieve ignition.

[0033] like Figures 4-7As shown, the valve stem 10 is vertically and vertically positioned between the body 2 and the intermediate frame 5. The valve stem 10 controls the connection and disconnection between the gas passage 22 and the open flame nozzle 6 through its lifting and lowering. The valve stem 10 includes a valve stem body 101, on which a main air hole 1011 is formed, a shoulder 1012 is formed in the middle of the valve stem body 101, and a flat shaft 1013 is formed at the upper end of the valve stem body 101, with a side air hole 1014 formed at the position of the flat shaft 1013. The side air hole 1014 communicates with the main air hole 1011. The valve stem 10 also includes sealing rings 102 disposed at the upper and lower ends of the valve stem body 101, and a sealing plug 103 inserted into the upper end of the main air hole 1011. One end of the spring 11 is supported on the lower surface of the intermediate frame 5. The other end is supported on the shoulder 1012, so that the valve stem 10 keeps moving downward. The transmission component 12 is movably disposed in the body 2. The transmission component 12 makes the valve stem 10 and the roller sleeve 82 form a transmission connection. The transmission component 12 has a through hole 121 for the valve stem body 101 to pass through. The transmission component 12 also has a hook 122. When the transmission component 12 is set below the shoulder 1012 with the through hole 121, the hook 122 hooks onto the upper surface of the roller sleeve 82. In this way, when the roller sleeve 82 moves upward, it can carry the valve stem body 101 upward. The sealing plug 103 on the upper part of the valve stem body 101 can block the channel of the open flame nozzle 6, and the direct flame nozzle 7 generates a direct flame due to the increased flow rate, thereby realizing the switching of the flame state.

[0034] like Figure 2 As shown, the bottom of the body 2 is also equipped with a liquid filling valve 13, through which fuel can be added to the liquid storage chamber 21; the cover 1 is also equipped with an ignition stone, which is always in contact with the ignition wheel 9, and ignition can be achieved when the ignition wheel 9 rotates.

[0035] The structure is simplified by reducing the number of gas channels, which effectively controls the production cost of a single lighter. In addition, the flame switching operation is more direct and efficient.

[0036] In practical use, for ease of understanding of this utility model, it will be described in conjunction with the accompanying drawings;

[0037] See Figure 4 Compared to the CN212719832U solution, this solution only has one horizontal gas channel 22 machined on the body 2, which simplifies the manufacturing process and effectively controls the manufacturing cost of a single lighter; the sealing plug 103 at the top of the gas valve rod 10 is set near the bottom of the open flame nozzle 6, making the switching between open flame and direct flame more direct and efficient, and the operation is also very convenient.

[0038] During normal use, first open the cover 1. The movement of the cover 1, through the linkage component 4, causes the movable valve core 32 to be pressed down, thus connecting the liquid storage chamber 21 with the gas channel 22. Since the direct-injection nozzle 7 is always connected to the gas channel 22, combustible gas flows out from the direct-injection nozzle 7. At the open flame nozzle 6, the gas from the gas channel 22 flows through the main gas hole 1011 and the side gas hole 1014 of the valve stem body 101 to the open flame nozzle 6, i.e., the open flame nozzle 6... Combustible gas also flows out at the same location. When ignited, the flow rate of combustible gas at the direct injection nozzle 7 is insufficient to form a direct injection flame, while an open flame is formed at the open flame nozzle 6. At this time, the roller sleeve 82 is pushed upward by hand, and the roller sleeve 82 can move the valve stem body 101 upward. The sealing plug 103 at the top of the valve stem body 101 can block the passage of the open flame nozzle 6, while the direct injection nozzle 7 generates a direct injection flame due to the increased flow rate, thereby achieving the switching of the flame state.

[0039] When the cover 1 is closed, the movable valve core 32 is reset under the elastic force of the return spring 33, so that the liquid storage chamber 21 no longer supplies combustible gas to the gas channel 22, ensuring safe use.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flame switching mechanism for a dual-flame lighter, characterized in that: include The fuselage (2) has a liquid storage chamber (21) inside and a gas passage (22) is formed at the top of the liquid storage chamber (21). The cover (1) is hinged to the body (2) to form an opening and closing structure. During the opening and closing process, the cover (1) is controlled by the linkage of the air valve assembly (3) configured on the body (2) to realize the on / off control between the liquid storage chamber (21) and the gas channel (22). The middle frame (5) is fixed to the fuselage (2). The middle frame (5) is provided with an open flame nozzle (6) and a direct flame nozzle (7). The direct flame nozzle (7) is always in communication with the gas channel (22). Side sliding roller (8), the side sliding roller (8) is disposed on one side of the body (2), the side sliding roller (8) includes a rotatable pivot shaft (81) and a roller sleeve (82) sleeved on the outside of the pivot shaft (81) and slidable relative to the pivot shaft (81). An ignition grinding wheel (9) is disposed on the upper part of the pivot shaft (81). The valve rod (10) is vertically and vertically arranged between the body (2) and the middle frame (5). The valve rod (10) controls the opening and closing of the gas channel (22) and the open flame nozzle (6) by lifting and lowering. The valve stem (10) includes a valve stem body (101), on which a main air hole (1011) is formed, through which the valve stem body (101) extends vertically. A shoulder (1012) is formed in the middle of the valve stem body (101), and a flat shaft (1013) is formed at the upper end of the valve stem body (1013), with a side air hole (1014) formed at the position of the flat shaft (1013). The side air hole (1014) communicates with the main air hole (1011). The valve stem (10) also includes a sealing ring (102) disposed at the upper and lower ends of the valve stem body (101) and a sealing plug (103) inserted into the upper end of the main air hole (1011). A spring (11) is supported at one end on the lower surface of the middle frame (5) and at the other end on the shoulder (1012) so that the valve rod (10) maintains a downward movement tendency. The transmission component (12) is movably disposed within the body (2) and the transmission component (12) enables the valve rod (10) to form a transmission connection with the roller sleeve (82).

2. The flame switching mechanism on a dual-flame lighter according to claim 1, characterized in that: The valve assembly (3) includes a valve seat (31) fixedly mounted on the body (2), a movable valve core (32) built into the valve seat (31), and a reset spring (33) for resetting the movable valve core (32). When the movable valve core (32) is pressed, the liquid storage chamber (21) and the gas channel (22) are connected.

3. The flame switching mechanism on a dual-flame lighter according to claim 2, characterized in that: The body (2) is equipped with a linkage component (4), and the opening and closing of the cover (1) is controlled by the linkage component (4) to press the movable valve core (32).

4. The flame switching mechanism on a dual-flame lighter according to claim 1, characterized in that: The lower part of the pivot shaft (81) has a locking block (811) with a regular hexagonal cross section. The lower end of the roller sleeve (82) has a slot (821) that matches the locking block (811). When the locking block (811) is inserted into the slot (821), the roller sleeve (82) and the pivot shaft (81) rotate synchronously.

5. The flame switching mechanism on a dual-flame lighter according to claim 1, characterized in that: The transmission member (12) has a through hole (121) through which the valve stem body (101) passes. The transmission member (12) also has a hook (122). When the transmission member (12) is disposed below the shoulder (1012) by the through hole (121), the hook (122) hooks onto the upper surface of the roller sleeve (82).

6. The flame switching mechanism on a dual-flame lighter according to claim 1, characterized in that: The bottom of the fuselage (2) is also provided with a liquid filling valve (13), through which fuel can be added to the liquid storage chamber (21).

7. The flame switching mechanism on a dual-flame lighter according to claim 1, characterized in that: The cover (1) is also provided with an ignition stone. The ignition stone is always in contact with the ignition grinding wheel (9). Ignition can be achieved when the ignition grinding wheel (9) rotates.

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