A switching structure for switching multiple burners in a lighter and the lighter itself.

Abstract

A switching structure for switching multiple flame heads in a lighter and a lighter in general, comprising: a housing having an internal cavity, the housing having at least two vent pipes circumferentially arranged; a knob that cooperates with the housing to form a closed chamber and is rotatable relative to the housing, the knob having a shaft with a first vent hole on its side protruding upwards at its center, the shaft being placed within the cavity, and an elastic element being provided between the shaft and the housing, the first vent hole sequentially connecting to the vent pipes when the knob is rotated; and a gas lifting element, linked to the knob and rotating with the knob to move the vent head along the vent head axis. Through the cooperation of the knob and the housing, the vent holes are connected to the vent pipes respectively, enabling switching of the flame type. When any one vent pipe is aligned with a vent hole, the other vent pipe is closed, greatly reducing gas consumption, and allowing for arbitrary switching of the flame type during use.

Description

Technical Field

[0001] This invention specifically relates to a switching structure for switching multiple burners in a lighter and a lighter. Background Technology

[0002] Currently, lighters (also commonly referred to as cigarette lighters in this field) on the market are categorized into the following types based on their ignition mechanism: gas lighters, kerosene lighters, electric heating element lighters, and arc lighters. Based on the flame type, they can be classified as: open flame, windproof, and direct flame lighters; each type has its advantages and limitations.

[0003] Among them, gas lighters are traditional lighters. Their structure generally includes a shell and a gas ignition component set inside the shell, such as a gas box, a pry bar, an electronic ignition device, and a pry bar drive mechanism. The gas box is equipped with a burner. The pry bar is connected to the burner and prying mechanism. The pry bar drive mechanism is used to drive the pry bar to pry up the burner. Gas is released from the burner and ignited by the electronic ignition device.

[0004] Conventional gas lighters only produce one type of flame: open flame, windproof, or jet. However, to meet the needs of different occasions, gas lighters sometimes require multiple flame types, such as open flame and jet, or jet and windproof. For multi-flame lighters, switching between these flame types typically involves blocking the gas outlet pipe of the non-jet flame, as illustrated in Chinese patent CN 214501316. U discloses a dual-flame switching valve and a lighter with the same device. The valve uses two hoses connected to different flame-emitting mechanisms, such as a direct-fire tower and a flame-emitting needle. By setting a flame needle on the flame-emitting needle and using a drive frame to connect the flame-emitting needle and the flame-emitting needle, the side hose can be opened and closed. Since the direct-fire tower requires a large pressure, when the side hose is open, the pressure at the direct-fire tower is reduced, and a direct-fire flame cannot be formed. At this time, an open flame will be generated at the flame needle, thus achieving the switching between flames. However, this method requires an additional flame-emitting device. Furthermore, even if the direct-fire tower cannot produce a flame, there is still gas leakage, resulting in additional gas loss.

[0005] Chinese patent CN 218119800 U discloses a lighter with a flame switching function, which proposes another switching method. However, its essence is to connect two flame generating devices through two gas pipes. By squeezing one of the gas pipes, the gas pipe is blocked, thereby achieving the switching of the flame. However, this method also has the aforementioned problem, that is, one of the gas pipes is always venting, which leads to additional gas loss. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a switching structure for switching multiple burners in a lighter and a lighter in general.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A switching structure for switching multiple burners in a lighter, comprising:

[0009] A housing having an internal cavity, and at least two circumferentially arranged gas outlet pipes for connection to a flame generator;

[0010] A knob, which cooperates with the housing to form a closed cavity, and is rotatable relative to the housing. The center of the knob protrudes upward to form a shaft with a first vent hole on the side. The shaft is placed in the cavity, and an elastic element is provided between the shaft and the housing to provide a force to move the knob downward. When the knob is rotated clockwise or counterclockwise, the first vent hole is connected to the vent pipe in sequence.

[0011] The air lifting component is linked to the knob and can rotate clockwise or counterclockwise with the knob, causing the air outlet to move along the axis of the air outlet.

[0012] It includes:

[0013] A sealing sleeve is disposed between the shaft and the housing, and the sealing sleeve is provided with a second vent hole in the circumferential direction corresponding to the vent pipe.

[0014] The knob is located on the outside of the shaft and has multiple first protrusions. The bottom of the housing has two second protrusions symmetrically arranged at the position where it mates with the knob. The first protrusions and the second protrusions work together to indicate the gear position.

[0015] The outer side of the sealing sleeve is provided with at least one limiting protrusion, and the inner wall of the housing is provided with a corresponding limiting groove.

[0016] The upper end of the shaft extends upward to form a fixing rod. The upper end of the fixing rod passes through the housing and is provided with a retaining spring on the upper side of the fixing rod to form a whole with the knob and the housing.

[0017] When the knob is rotated clockwise or counterclockwise, it switches between the first vent not being connected to any vent pipe, the first vent being connected to the first vent pipe, and the first vent being connected to the second vent pipe.

[0018] The bottom of the gas lifting component is provided with lifting parts at intervals around the perimeter. One side of the lifting part is provided with an inclined surface, which is set towards the rotation direction of the knob. The surface of the gas box is provided with lifting fulcrums that cooperate with the lifting parts.

[0019] The distance between connected lifting fulcrums is equal to the length of the lifting section.

[0020] The upper side of the air lifting component is provided with several positioning grooves, and the bottom of the knob is provided with a corresponding positioning protrusion.

[0021] A lighter has at least two generators, an ignition assembly corresponding to the generators, and a gas tank inside. The two generators are respectively connected to the gas outlet pipe of the switching structure for switching multiple burners of the lighter. The gas lifting component of the switching structure for switching multiple burners of the lighter is linked to the gas outlet of the gas tank.

[0022] The beneficial effects of this invention are as follows: by cooperating with the knob and the housing, the gas outlet is connected to the gas pipe respectively, realizing the switching of the flame form. When any one gas pipe is aligned with the gas outlet, the other gas pipe is in a closed state, which can greatly reduce the use of gas. At the same time, the flame form can be switched at will during use. The linkage between the gas lifting component and the knob makes the structure more compact, the gas output more stable, and the flow field can be switched. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of an embodiment of the present invention connected to a generator.

[0024] Figure 2 This is a top view of the present invention.

[0025] Figure 3 for Figure 2 A cross-sectional view at point AA.

[0026] Figure 4 This is an exploded view of the present invention.

[0027] Figure 5 This is a schematic diagram of the housing structure of the present invention.

[0028] Figure 6 and Figure 7 This is a schematic diagram of the knob.

[0029] Figure 8 This is a schematic diagram of the sealing sleeve.

[0030] Figure 9 This is a schematic diagram of the lifting component.

[0031] Figure 10 This is a schematic diagram showing the position change of the first air outlet when rotated counterclockwise.

[0032] Figure 11 This is a schematic diagram of the internal structure of a lighter. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0035] like Figures 1 to 4 As shown, the present invention discloses a switching structure for switching multiple burners in a lighter, which includes: a housing 2, a knob 1, and a lifting component.

[0036] like Figure 5 As shown, the housing 2 has a cavity 23 inside, and the housing is provided with at least two gas outlet pipes 21 for connecting to the flame generator in the circumferential direction;

[0037] The housing is in the form of a cover with an opening on its lower side. Two vent pipes 21 are arranged around its circumference, with an included angle of 40° between the two vent pipes. If multiple vent pipes are added, the included angle between each vent pipe can be adjusted appropriately. Each vent pipe is connected to a generator 3, such as a direct flame generator or a windproof flame generator. At the same time, the generator can also be in the form of an open flame ignition needle. That is, by connecting with different flame generators, different flame forms can be presented to meet the needs of various applications. The generators are arranged side by side, and each generator can be ignited by an ignition component.

[0038] like Figures 6 to 7 As shown, the knob, in conjunction with the housing, forms a closed chamber. That is, the diameter of the knob is larger than the diameter of the housing, so that the entire housing can be embedded in the knob and cooperate with the knob to achieve a sealed chamber. At the same time, a sealing ring can be set between the outer wall of the housing and the knob to further improve the sealing performance between the two. The knob can be rotated relative to the housing, and the center of the knob protrudes upward to form a shaft with a first vent hole on the side. The shaft is placed in the cavity, and an elastic element 6 is provided between the shaft and the housing to provide a force to move the knob downward. When the knob is rotated clockwise or counterclockwise, the first vent hole is connected to the vent pipe in sequence.

[0039] In use, when neither of the first vents is connected to both vent pipes, the gas lifting device is in the closed vent state. When the knob is rotated clockwise, the first vent connects to the nearest vent pipe, allowing the generator connected to that vent to produce a corresponding flame. Continuing to rotate clockwise disconnects the first vent from the first vent pipe. After rotating a certain angle, the first vent connects to the second vent pipe. Since the flame at the front is not completely extinguished, it can ignite the generator connected to the second vent pipe, producing a corresponding flame. Preferably, the ignition needle is positioned close to the ignition assembly, allowing lighters using this product to ignite multiple generators with only one ignition assembly.

[0040] In addition, the size of the shaft 11 can be set according to requirements. The shaft can be directly used to fit the housing to achieve the corresponding setting of the first air outlet and the air outlet pipe, or a sealing sleeve can be added between the two to reduce the size of the shaft.

[0041] like Figure 9 As shown, the air lifting component is linked to the knob and can rotate clockwise or counterclockwise with the knob, causing the air outlet 4 to move along the air outlet axis.

[0042] When the knob is rotated, it will synchronously drive the air lifting component to rotate. The air lifting component only needs to be designed to achieve axial displacement by rotation, as mentioned below, or it can be made using a threaded connection.

[0043] When the shaft size is reduced, a sealing sleeve 5 can be installed between the shaft and the housing.

[0044] like Figure 8 As shown, the sealing sleeve 5 is disposed between the shaft and the housing, and the sealing sleeve is provided with a second vent hole 51 corresponding to the vent pipe in the circumferential direction. The inner wall of the sealing sleeve is in contact with the shaft, and its outer wall is in close contact with the inner wall of the housing, so as to ensure the tightness between the second vent hole and the first vent hole and the vent pipe, and to avoid gas leakage.

[0045] The knob is located on the outer side of the shaft and has multiple first protrusions 14. The distance between each first protrusion is equal to the distance between each air outlet. The bottom of the housing has two second protrusions 24 symmetrically arranged at the position where they mate with the knob. The first and second protrusions work together to indicate the gear position. Both the first and second protrusions have an arc surface structure, which makes it easier to rotate the knob. At the same time, the interaction between the first and second protrusions provides the user with a good feel when switching gears and ensures that the gear is switched accurately, thus preventing the flame from going out due to incomplete switching.

[0046] Since the sealing sleeve and the housing need to maintain their positions at all times, a limiting structure is preferably provided between them. The outer side of the sealing sleeve has at least one limiting protrusion 52, and the inner wall of the housing has a corresponding limiting groove 22. The limiting protrusion is not limited to raised dots, round dots, bumps, reinforcing ribs, etc.; it only needs to ensure that the positions of the sealing sleeve and the housing do not change due to the rotation of the knob.

[0047] The upper end of the shaft extends upward to form a fixing rod 13. The upper end of the fixing rod passes through the housing and is provided with a retaining spring 9 on the upper side of the fixing rod to form a whole with the knob and the housing. The fixing rod and the retaining spring cooperate to form a whole. When installed inside the lighter, other structural designs can be omitted. At the same time, the fixing rod can also play a certain guiding role, guiding the position on the slight axis generated when the knob is rotated.

[0048] The elastic element is a spring, which is sleeved on the outside of the fixed rod, and its upper end is limited by the housing.

[0049] like Figure 10 As shown, when the knob is rotated clockwise or counterclockwise, it switches between the first vent not being connected to any vent pipe, the first vent being connected to the first vent pipe, and the first vent being connected to the second vent pipe. This application directly uses rotation to switch the connection between the first vent and each vent pipe, thereby achieving the switching of the flame pattern, which is convenient and quick, and this structure can ensure the sealing between each vent pipe.

[0050] The bottom of the gas lifting component is provided with lifting parts 71 spaced circumferentially, and one side of the lifting part is provided with an inclined surface 72, which is set towards the rotation direction of the knob. The surface of the gas box 8 is provided with lifting fulcrums that cooperate with the lifting parts.

[0051] The lifting section is evenly distributed at the bottom of the gas lifting component. Its length should be greater than or equal to the distance the knob moves from the first gas outlet to the Nth gas outlet, thereby ensuring that when each gas outlet is connected to the first gas outlet, the gas outlet of the gas box is in the open state.

[0052] The vertical surface of the lifting section, which is set in the non-moving direction, can restrict movement in abnormal rotational directions when it is in the closed state. At the same time, it can be set as an inclined surface in both directions, so that ignition can be achieved by rotating in either direction when it is in the closed state.

[0053] When the lifting part is in conjunction with the lifting fulcrum, it can move clockwise or counterclockwise along the lifting fulcrum, enabling the switching between the two flames at any time.

[0054] The distance between the connected lifting fulcrums 81 is equal to the length of the lifting section, which can be a straight line length or an arc length.

[0055] The upper side of the air lifting component is provided with several positioning grooves 73, and the bottom of the knob is provided with a corresponding positioning protrusion 15. The positioning protrusion 15 is integrally formed on the side wall of the knob. The positioning protrusion and the positioning groove cooperate to realize the knob action to drive the air lifting component to rotate synchronously.

[0056] like Figure 11 As shown, a lighter has at least two generators, an ignition assembly 10 corresponding to the generators, and a gas tank inside. The two generators are respectively connected to the gas outlet pipe of the switching structure for switching multiple burners of the lighter. The gas lifting component of the switching structure for switching multiple burners of the lighter is linked to the gas outlet of the gas tank 8.

[0057] The ignition component can be made by using a combination of a grinding wheel and a flint to achieve ignition.

[0058] The embodiments should not be regarded as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A switching structure for switching multiple burners in a lighter, characterized in that: It includes: A housing having an internal cavity, and at least two circumferentially arranged gas outlet pipes for connection to a flame generator; A knob, which cooperates with the housing to form a closed cavity, and is rotatable relative to the housing. The center of the knob protrudes upward to form a shaft with a first vent hole on the side. The shaft is placed in the cavity, and an elastic element is provided between the shaft and the housing to provide a force to move the knob downward. When the knob is rotated clockwise or counterclockwise, the first vent hole is connected to the vent pipe in sequence. The gas lifting component is linked to the knob and can rotate clockwise or counterclockwise with the knob, causing the gas outlet to move along the axis of the gas outlet. The bottom of the gas lifting component is provided with lifting parts at intervals around the circumference. One side of the lifting part is provided with an inclined surface, which is set towards the rotation direction of the knob. The surface of the gas tank is provided with corresponding lifting fulcrums that cooperate with the lifting parts.

2. The switching structure for switching multiple burners in a lighter according to claim 1, characterized in that: It includes: A sealing sleeve is disposed between the shaft and the housing, and the sealing sleeve is provided with a second vent hole in the circumferential direction corresponding to the vent pipe.

3. A switching structure for switching multiple burners in a lighter according to claim 2, characterized in that: The knob is located on the outside of the shaft and has multiple first protrusions. The bottom of the housing has two second protrusions symmetrically arranged at the position where it mates with the knob. The first protrusions and the second protrusions work together to indicate the gear position.

4. A switching structure for switching multiple burners in a lighter according to claim 2, characterized in that: The outer side of the sealing sleeve is provided with at least one limiting protrusion, and the inner wall of the housing is provided with a corresponding limiting groove.

5. A switching structure for switching multiple burners in a lighter according to claim 1, characterized in that: The upper end of the shaft extends upward to form a fixing rod. The upper end of the fixing rod passes through the housing and is provided with a retaining spring on the upper side of the fixing rod to form a whole with the knob and the housing.

6. A switching structure for switching multiple burners in a lighter according to claim 1, characterized in that: When the knob is rotated clockwise or counterclockwise, it switches between the first vent not being connected to any vent pipe, the first vent being connected to the first vent pipe, and the first vent being connected to the second vent pipe.

7. A switching structure for switching multiple burners in a lighter according to claim 1, characterized in that: The distance between connected lifting fulcrums is equal to the length of the lifting section.

8. A switching structure for switching multiple burners in a lighter according to claim 1, characterized in that: The upper side of the air lifting component is provided with several positioning grooves, and the bottom of the knob is provided with a corresponding positioning protrusion.

9. A lighter, characterized in that: It is equipped with at least two generators, ignition components and a gas box corresponding to the generators. The two generators are respectively connected to the gas outlet pipe of the switching structure for switching multiple burners of a lighter as described in any one of claims 1 to 8. The gas lifting component of the switching structure for switching multiple burners of a lighter is linked to the gas outlet of the gas box.

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