Infrared rays gas burner

Information

  • Patent Grant
  • 6659765
  • Patent Number
    6,659,765
  • Date Filed
    Wednesday, December 18, 2002
    22 years ago
  • Date Issued
    Tuesday, December 9, 2003
    21 years ago
Abstract
An infrared rays gas burner comprises a main member having a box which has a base seat and a cover, two non-asbestos pads, ceramic planks and guiding device. The non-asbestos pads is mounted the base seat and the ceramic planks rests on the non-asbestos pad and the cover is secured to the base seat with stop portions thereon against the ceramic plank. A gas mixing tube, which works as a Venturi tube, is mounted on the base seat to inject gas into the base seat. The guiding device is mounted in the base seat, which has guiding portions and outlets thereon for spreading the gas injected from the gas mixing tube in the base seat equally.
Description




FIELD OF THE INVENTION




The present invention relates to a gas stove, and more particularly to a composite an infrared rays gas burner.




BACKGROUND OF THE INVENTION




A conventional infrared rayed gas burner was provided in a stove which burns gas to heat a ceramic plank so as to provide infrared rays for cooking foods. There were two types of infrared rayed gas burners presented in the market, one of which provided ceramic planks on a conventional gas burner to heat them directly, the other one of which provided an open type gas burner and fixed with ceramic planks thereon with galvanized iron nails. The gas burner of the second type is smaller and gas and air will be mixed well so that the second type of the conventional infrared rayed gas burner is popular in the present market.




It will be noted that the ceramic planks of the second type of the infrared rayed gas burner is fixed the with the gas burner by galvanized iron nails, therefore the ceramic planks are easy to be damaged when assembling, and, if the ceramic plank were damaged, all of them must be replaced and the replacement procedures are not an easy work.




SUMMARY OF THE INVENTION




The primary object of the present invention is to provide an infrared rays gas burner, which will not damage the ceramic planks.




The secondary object of the present invention is to provide an infrared rays gas burner, which has an easy way to assemble it.




The third object of the present invention is to provide an infrared rays gas burner, which can only replace parts of the ceramic planks which are damaged.




According to the objects of the present invention, an infrared rays gas burner comprises a main member having a box which has a base seat and a cover, at least a non-asbestos pad and at least a ceramic plank, wherein the base seat has an opening at a top side thereof, support portions at the top side thereof and a connecting opening and lock holes on an end thereof and the cover has an opening at a midsection thereof and stop portions at an edge of the opening. The non-asbestos pad rests on the support portions of the base seat and the ceramic plank rests on the non-asbestos pad and the cover is secured to the base seat with the stop portion against the ceramic plank. A gas mixing tube has an inner tube secured on an interior side of the base seat and an outer tube secured on an exterior side of the base seat, wherein the inner tube is communicated with the out tube via the connecting opening of the base seat, the inner tube having a tunnel therein which has a smaller size at the end thereof communicating the out tube and a larger size at the other end thereof and the outer tube having a tunnel therein which has a smaller size at the end thereof communicating the inner tube and a larger size at the other end thereof.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view of a first preferred embodiment of the present invention;





FIG. 2

is an exploded view of the first preferred embodiment of the present invention;





FIG. 3

is a sectional view in part of the first preferred embodiment of the present invention, showing the relationship of a cover, a support portion, a non-asbestos pad and a ceramic plank;





FIG. 4

is a sectional view of the first preferred embodiment of the present invention, showing the relationship of an inner tube, an outer tube and a guiding device;





FIG. 5

is a perspective view of a second preferred embodiment of the present invention, and





FIG. 6

is a sectional view of the second preferred embodiment of the present invention.











DETAIL DESCRIPTION OF THE INVENTION




Please refer to FIGS. from

FIG. 1

to

FIG. 4

, the first preferred embodiment of the present invention provides an infrared rays gas burner


10


, which mainly comprises a main member


12


, a gas mixing tube


14


, a frame


16


, a nozzle


18


and a connector


19


, wherein




The main member


12


has a box


22


, two non-asbestos pads


24


and a plurality of ceramic planks


26


. The box


22


has a base seat


30


, which has a housing portion


32


and an annular flange portion


34


with holes


35


at an opening side of the housing portion


32


. An annular flat portion at the boundary of the housing portion


32


and the flange portion


34


is defined as a support portion


36


. A connecting opening


38


and two lock holes


40


at opposite sides of the connecting opening


38


are provided at a front side of the housing portion


32


. A cover


42


has a cap portion


44


, an opening


45


at a top side of the cap portion


44


, a stop portion


46


around the opening


45


and an annular flange portion


48


at a bottom side of the cap portion


44


with holes


49


thereon corresponding to the holes


35


on the flange portion


34


of the base seat


30


. The cap portion


44


respectively provides plugs


50


at interior sides of lateral sides thereof. The non-asbestos pads


24


are put on the support portion


36


and the ceramic planks


26


are rested on the non-asbestos pads


24


and against by the stop portion


46


. The main member


12


further has two holding pieces


52


, each of which is an L-shaped cross-section bar having a horizontal piece


54


and a vertical piece


56


. The holding pieces


52


is put on the base seat


30


with the horizontal pieces


54


respectively resting between the non-asbestos pads


24


and the ceramic planks


26


and the vertical pieces


56


attached on the interior sidewall of the base seat


30


. The vertical pieces


56


of the holding pieces


52


are provided with gaps


58


to engage the plugs


50


. Each vertical piece


56


further has an inward portion


60


to guild the plugs


50


to slide into the gaps


58


.




The gas mixing tube


14


consists of an inner tube


62


and an outer tube


64


. The inner tube


62


has a taper-shaped tube member


66


and a taper-shaped tunnel


67


therein. A first lock portion


68


is provided on an exterior side of the tube member


66


at the end of the tunnel


67


having smaller size with apertures on opposite sides. A first connection portion


70


is provided at a distal end of the first lock portion


68


having a size smaller than the opening


30


on the housing portion


32


of the base seat


30


.




The outer tube


64


has a taped-shaped case member


72


and a taped-shaped tunnel


74


therein. A second connection portion


76


is provided on an interior side of the case member


72


at the end of the tunnel


74


having a smaller size. A second lock portion


78


is provided on a distal end of the second connection portion


76


with apertures on opposite sides. The inner tube


62


passes the first connection portion


70


through the connecting opening


38


and attaches the first lock portion


68


on the interior sidewall of the housing portion


32


. The outer tube


64


engages the second connection portion


76


with the first connection portion


70


and connects the first and the second lock portions


68


and


78


and the lock holes


40


by screws to secure outer tube


64


and the inner tube


62


on the base seat


30


. Because of the smaller end of the tunnel


74


of the outer tube


64


connects the smaller end of the tunnel


67


of the inner tube


62


, the gas mixing tube


14


will work like a Venturi tube to increase the flow speed of the gas passing through.




The frame


16


is secured at a distal end of the outer tube


64


and the nozzle


18


and the connector


19


are provided on the frame


16


.




The present invention further comprises a guiding device


80


which mainly consists of a side board


81


and a main board


85


to be an L-shaped from a lateral view. The side board


81


has an engaging opening


82


, two apertures


86


at opposite sides of the engaging opening


82


respectively and two openings


84


at distal sides of the apertures


86


respectively. The main board


85


has a plurality of guiding portions


83


thereon and each guiding portion


83


has an outlet


87


facing the outer tube


64


.




The way of the infrared rays gas burner


10


working is like the conventional one, and I am not going to describe the detail again. The characters of the present invention are hereunder:




In assembling, the holding pieces


52


clip the ceramic planks


26


first and squeeze them into the cover


48


, such that the plugs


50


on the cap portion


44


will engage the gaps


58


of the holding pieces


52


to secure the holding pieces


52


and the ceramic planks


26


therein. Next, secure the cover on the top side of the base seat


30


by screws to finish the assembling procedures. It will be easy to understand that the assembling procedures of the infrared rays gas burner


10


of the present invention are very simple and it will not damage the ceramic planks


26


in assembling.




The ceramic planks


26


are detachable mounted in the cover


42


so that it can only replace the damaged ceramic plank(s)


26


rather than replace all of the ceramic planks


26


when any one of them was damaged. Next, the inner tube


62


and the outer tube


64


are fixedly secured on a sidewall of the base seat


30


.




The gas flowed through the outer tube


64


the inner tube


62


will increase the flow speed, and the gas inject out of the inner tube


62


will spread in base seat


30


below the main board


85


and flow through the outlets


87


to the space below the ceramic planks


26


. The orientations of the outlets


87


will help the gas filled in the space equally to make the ceramic planks


26


will be heated equally. The openings on the side board


81


of the guiding device


80


can let the gas flowing back.




Please refer to FIG.


5


and

FIG. 6

, an infrared rays gas burner


90


of the second preferred embodiment of the present invention, which is similar to the infrared rays gas burner


10


of the first preferred embodiment, except that a cover


91


has plank member


92


with an opening


93


. The plank member


92


is bent upwardly at interior sides to be two stop portions


94


. The infrared rays gas burner


90


of the second preferred embodiment provides no holding piece


52


as the first preferred embodiment does so that ceramic planks


95


are attached on the non-asbestos pads


96


directly. At last, secure the cover


91


on a base seat


97


will finish the assembling procedures. The stop portions


94


of the cover


91


will be against the ceramic planks


95


to prevent them from escaping. The infrared rays gas burner


90


of the second preferred embodiment also a guiding device


100


which guiding portions


102


are made from punching. It will make the guiding device


100


can be manufactured easier.



Claims
  • 1. An infrared rays gas burner, comprising:a main member having a box including a base seat and a cover, at least a non-asbestos pad and at least a ceramic plank; said base seat having an opening at a top side thereof, support portions at the top side thereof and a connecting opening and lock holes on an end thereof, and said cover includes an opening at a midsection thereof and stop portions at an edge of said opening; said non-asbestos pad resting on said support portions of said base seat and said ceramic plank resting on said non-asbestos pad and said cover secured to said base seat with said stop portion against said ceramic plank, and a gas mixing tube having an inner tube secured on an interior side of said base seat and an outer tube secured on an exterior side of said base seat, wherein said inner tube operatively communicates with said outer tube via said connecting opening of said base seat; said inner tube further includes a tunnel therein having a smaller size at the end thereof and operatively communicates with said outer tube and a larger size at the other end thereof, and said outer tube having a tunnel therein with a smaller size at the end thereof and operatively communicates with said inner tube and a larger size at the other end thereof.
  • 2. The infrared rays gas burner as defined in claim 1, wherein said main member further comprises two holding pieces provided at an interior side of said cover resting in between said ceramic plank and non-asbestos pad.
  • 3. The infrared rays gas burner as defined in claim 2, wherein each of said holding pieces further includes at least a gap and said cover has at least a plug to engage said gap.
  • 4. The infrared rays gas burner as defined in claim 3, wherein said holding piece is provided with an inward portion closing said gap.
  • 5. The infrared rays gas burner as defined in claim 4, wherein said holding piece is L-shaped in cross-section having a vertical piece and a horizontal piece, wherein said inward portion and said gap are provided at said vertical piece.
  • 6. The infrared rays gas burner as defined in claim 1, wherein said cover includes a bent portion at the edge of said opening of said stop portion.
  • 7. The infrared rays gas burner as defined in claim 1, wherein said cover includes an upwardly bent portion at the edge of said opening of said stop portion.
  • 8. The infrared rays gas burner as defined in claim 1, wherein said base seat is provided with lock holes and said cover is provided with lock holes corresponding to said lock holes of said base seat respectively.
  • 9. The infrared rays gas burner as defined in claim 1, wherein said inner tube has a taper-shaped tube member, a first lock portion provided at an end of said tube member and a first connection portion provided at a distal end of said first lock portion which size is smaller than said connecting hole.
  • 10. The infrared rays gas burner as defined in claim 1, wherein said outer tube has a case member with a taper-shaped tunnel therein, a section connection portion provided at said case member at the end of said tunnel having smaller size and a second lock portion provided at a distal end of said second connection portion.
  • 11. The infrared rays gas burner as defined in claim 1, further comprising a guiding device provided in said base seat which spreads gas injected from said inner tube in said base seat equally and said inner tube fixing an end thereof to said guiding device.
  • 12. The infrared rays gas burner as defined in claim 11, wherein said guiding device has a side board on which said inner tube fixing to and a main board having an end thereof connecting an end of said side board and having outlets thereon.
  • 13. The infrared rays gas burner as defined in claim 12, wherein said main board of said guiding device is provided with guiding portion thereon each of which has one of said outlets face each outer tube.
  • 14. The infrared rays gas burner as defined in claim 12, wherein said side board of said guiding device is provided with an engaging opening, two apertures at opposite sides of said engaging opening respectively and two openings at distal sides of said apertures respectively.
US Referenced Citations (7)
Number Name Date Kind
3040805 Lambert Jun 1962 A
3057400 Wagner Oct 1962 A
3199573 Flynn Aug 1965 A
3785763 Bratko Jan 1974 A
3824064 Bratko Jul 1974 A
4608012 Cooper Aug 1986 A
5593300 De Gouville Jan 1997 A