An adjustable vortex flame device includes a control head. The control head delimits an opening and includes a flow guiding mechanism including a plurality of vanes and a control mechanism delimiting a hole. The plurality of vanes is disposed along a circumference of the opening one after another, w
An adjustable vortex flame device includes a control head. The control head delimits an opening and includes a flow guiding mechanism including a plurality of vanes and a control mechanism delimiting a hole. The plurality of vanes is disposed along a circumference of the opening one after another, with two adjacent vanes including a spiral air passage formed therebetween. The hole has a diametrical size which varies with respect to different sizes of vortex flames of the adjustable vortex flame device. The hole corresponds to and is in communication with the opening. The hole has a smaller diametrical size than the opening. A hollow and transparent shield is disposed above the control head and adjacent to the control mechanism. The shield delimits a space in communication with the hole of the control mechanism.
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1. An adjustable vortex flame comprising: a control head delimiting an opening, with the opening having a diametrical size, wherein the control head includes a base having an inner periphery thereof delimiting the opening, wherein the base includes a first base member and a second base member joined
1. An adjustable vortex flame comprising: a control head delimiting an opening, with the opening having a diametrical size, wherein the control head includes a base having an inner periphery thereof delimiting the opening, wherein the base includes a first base member and a second base member joined to the first base member, wherein the first base member has a first engaging end and the second base member has a second engaging end engaging with the first engaging end, wherein the first engaging end forms a plurality of first ridges each including first and second edges and an apex defined therebetween, wherein the second engaging end forms a plurality of second ridges each including third and fourth edges and an apex defined therebetween respectively, wherein the first and second edges of one of the plurality of first ridges correspondingly face the third and fourth edges of one of the plurality of second ridges, wherein the first and second edges of one of the plurality of first ridges have an included angle of greater than 90 degrees, wherein the third and fourth edges of one of the plurality of second ridges have an included angle of greater than 90 degrees, with the control head including a flow guiding mechanism including a plurality of vanes, with the plurality of vanes disposed along a circumference of the opening one after another, with two adjacent vanes including a spiral air passage formed therebetween, with the control head including a control mechanism delimiting a hole, with the hole having a diametrical size and which varies with respect to different sizes of vortex flames, with the hole corresponding to and in communication with the opening, with the hole in a smaller diametrical size than the opening, wherein the flow guiding and control mechanisms are mounted on the base; anda hollow and transparent shield disposed above the control head and adjacent to the control mechanism, with the shield delimiting a space in communication with the hole of the control mechanism. 2. The adjustable vortex flame device as claimed in claim 1, wherein the control mechanism includes an actuating member and a plurality of plates, wherein the plurality of plates collaboratively delimits the hole and is engaged with the actuating member, wherein the diametrical size of the hole is varied dependent upon different relative positions of the plurality of plates, and wherein the actuating member is operable to move relative positions of the plurality of plates. 3. The adjustable vortex flame device as claimed in claim 2, wherein each of the plurality of plates has a crescent shape, wherein the plurality of plates is stacked together one after another, wherein the actuating member is pivotal about an axis of the control head, and wherein the plurality of plates is rotated circumferentially and selectively moves close to or away from a center axis of the hole with respect to a pivotal movement of the actuating member. 4. The adjustable vortex flame device as claimed in claim 3, wherein the actuating member includes an annular structure, a plurality of first joining ends disposed between inner and outer peripheries of and distributed circumferentially on the annular structure, and a through hole delimited by the inner periphery of the annular structure and corresponding to and in communication with the opening, wherein two opposite ends of each of the plurality of plates each include a second joining end, and wherein each of the plurality of plates includes one second joining end engaged with one of the plurality of first joining ends and the other second joining end engaged with one of a plurality of embedding sections of the control head. 5. The adjustable vortex flame device as claimed in claim 4, wherein the plurality of first joining ends defines a plurality of apertures and the plurality of second joining ends defines a plurality of projections respectively, wherein each of the plurality of plates includes a top surface thereof including one of the two projections projecting therefrom and engaged with one of the plurality of apertures and a bottom surface thereof including the other of the two projections projecting therefrom engaging with one of the plurality of embedding sections, and wherein the plurality of embedding sections defines a plurality of recesses. 6. The adjustable vortex flame device as claimed in claim 4, wherein the actuating member includes a control input for facilitating operation thereof, with the control input defining an extension projection from the annular structure of the actuating member. 7. The adjustable vortex flame device as claimed in claim 1, wherein each of the plurality of vanes has a first extension secured between the first edge of one of the plurality of first ridges and the third edge of one of the plurality of second ridges and a second extension extending from the first extension, wherein the air passage between two adjacent vanes is delimited by the second extensions thereof, and wherein each of the plurality of vanes includes the second extension extending from the first extension obliquely, with the first and second extensions having an included angle of greater than 90 degrees. 8. The adjustable vortex flame device as claimed in claim 7, wherein the control mechanism is an annular member secured to the first base member, wherein the hole is delimited by an inner periphery of the annular member, wherein the first base member has at least one first fixing end connecting with the opening, and wherein the control mechanism has at least one second fixing end engaging with the at least one first fixing end. 9. The adjustable vortex flame device as claimed in claim 1 further comprising a seat with at least one auxiliary air inlet fixed to and bearing the base and with which a fuel reservoir is adapted to connect, wherein the seat includes the fuel reservoir engaged therewith, and wherein the fuel reservoir includes a wick and fuel, with the wick drawing fuel up into a vortex flame. 10. The adjustable vortex flame device as claimed in claim 9 further comprising a fixing seat with a first bore in which the fuel reservoir is engaged to mount securely on the fixing seat and a plurality of feet for standing on a surface stably, with the fixing seat comprising a frame defining a housing with a second bore in which the control head, the flow guiding and control mechanisms, the seat, the fuel reservoir, and the fixing seat are received, a securing ring structure securing the shield, and at least one supporting structure bearing the securing ring structure to a height, with the at least one supporting structure comprising a pedestal bearing the frame. 11. An adjustable vortex flame device comprising: a control head delimiting an opening, with the opening having a diametrical size, wherein the control head includes a base having an inner periphery thereof delimiting the opening, with the control head including a flow guiding mechanism including a plurality of vanes, with the plurality of vanes disposed along a circumference of the opening one after another, with two adjacent vanes including a spiral air passage formed therebetween, with the control head including a control mechanism delimiting a hole, with the hole having a diametrical size and which varies with respect to different sizes of vortex flames, with the hole corresponding to and in communication with the opening, with the hole in a smaller diametrical size than the opening, wherein the flow guiding and control mechanisms are mounted on the base;a hollow and transparent shield disposed above the control head and adjacent to the control mechanism, with the shield delimiting a space in communication with the hole of the control mechanism; anda seat with at least one auxiliary air inlet fixed to and bearing the base and with which a fuel reservoir is adapted to connect, wherein the seat includes the fuel reservoir engaged therewith, and wherein the fuel reservoir includes a wick and fuel, with the wick drawing fuel up into a vortex flame. 12. The adjustable vortex flame device as claimed in claim 11 further comprising a fixing seat with a first bore in which the fuel reservoir is engaged to mount securely on the fixing seat and a plurality of feet for standing on a surface stably, with the fixing seat comprising a frame defining a housing with a second bore in which the control head, the flow guiding and control mechanisms, the seat, the fuel reservoir, and the fixing seat are received, a securing ring structure securing the shield, and at least one supporting structure bearing the securing ring structure to a height, with the at least one supporting structure comprising a pedestal bearing the frame. 13. The adjustable vortex flame device as claimed in claim 11, wherein the control mechanism includes an actuating member and a plurality of plates, wherein the plurality of plates collaboratively delimits the hole and is engaged with the actuating member, wherein the diametrical size of the hole is varied dependent upon different relative positions of the plurality of plates, and wherein the actuating member is operable to move relative positions of the plurality of plates. 14. The adjustable vortex flame device as claimed in claim 13, wherein each of the plurality of plates has a crescent shape, wherein the plurality of plates is stacked together one after another, wherein the actuating member is pivotal about an axis of the control head, and the plurality of plates are rotated circumferentially and selectively move close to or away from a center axis of the hole with respect to a pivotal movement of the actuating member. 15. The adjustable vortex flame device as claimed in claim 14, wherein the actuating member includes an annular structure, a plurality of first joining ends disposed between inner and outer peripheries of and distributed circumferentially on the annular structure, and a through hole delimited by the inner periphery of the annular structure and corresponding to and in communication with the opening, wherein two opposite ends of each of the plurality of plates each includes a second joining end, and wherein each of the plurality of plates includes one second joining end engaged with one of the plurality of first joining ends and the other second joining end engaged with one of a plurality of embedding sections of the control head. 16. The adjustable vortex flame device as claimed in claim 15, wherein the plurality of first joining ends defines a plurality of apertures and the plurality of second joining ends defines a plurality of projections respectively, wherein each of the plurality of plates includes a top surface thereof including one of the two projections projecting therefrom and engaged with one of the plurality of apertures and a bottom surface thereof including the other of the two projections projecting therefrom engaging with one of the plurality of embedding sections, and wherein the plurality of embedding sections define a plurality of recesses.
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