Combustion device for outdoor flame heater

Abstract

An improvement of combustion device for outdoor flame heater direct to combustion device improvement below a glass tube comprises a burner having a gas distribution room in middle thereof and a plurality of flame holes at top surface thereof. Moreover, a cover covers a top of the burner to delimit an air distribution room therebetween, and has a plurality of airflow holes at a peripheral thereof; the air distribution room is provided for mixing and flaming up the combustion gas with the air, forming a huge flame row, in order to enhance combustion efficiency. Therefore, the flame emitted from the gas flame outlet along the glass tube up to the top outlet of the heat-resistant net tube by chimney effect to enhance the heating, safe and easy maintenance effects.

What is claimed is: 
     
         1 . An improvement of combustion device for outdoor flame heater, comprising:
 a housing providing an inside space for installing a gas barrel;   a base mounted on the housing and having a gas intake tube and a gas control switch;   a burner arranged on the base;   a plurality of support members having a bottom end fixed on the housing for delimiting a mounted space between the pluralities of support members;   a glass tube arranged in the mounted space;   wherein the burner has a gas distribution room in middle thereof; the gas distribution room includes a plurality of flame holes at a top surface thereof and a flange surface at a periphery thereof for fixing on the base by a screw; a bottom surface of the gas distribution room is connected to the gas intake tube; and   a cover larger than the burner covering on the burner to delimit an air distribution room between the burner and the cover and having a plurality of airflow holes at a peripheral thereof; a top of the cover corresponding to a tube diameter of the glass tube has a recessed mounted hole for positioning a bottom surface of the glass tube; the glass tube having a lower opening located at a top of the plurality of flame holes and the air distribution room for the combustion gas from the plurality of flame holes mixing and flaming up with the air in the air distribution room.   
     
     
         2 . The improvement of combustion device for outdoor flame heater as claimed in  claim 1 , wherein the housing has a front side corresponding to the base has an opening and the base has a front side exposed to the opening. 
     
     
         3 . The improvement of combustion device for outdoor flame heater as claimed in  claim 2 , wherein the flange surface of the burner has a plurality of screw holes thereon; the periphery of the cover corresponding to the flange surface has an extended convex ring surface having an external periphery fixed on a support plate of top of the housing; the convex ring surface corresponding to the screw holes has a plurality of positioning holes for the convex ring surface to be locked on the flange surface and for the burner and base to be fixed under the cover. 
     
     
         4 . The improvement of combustion device for outdoor flame heater as claimed in  claim 3 , wherein the burner and the base are detached from the cover and pulled out from the opening of the housing when the plurality of screws are removed. 
     
     
         5 . The improvement of combustion device for outdoor flame heater as claimed in  claim 1 , the gas distribution room of the burner is a hollow body composed of an upper stamping plate and a lower stamping plate and the plurality of flame holes are tubular holes integrally molded with the stamping plate. 
     
     
         6 . The improvement of combustion device for outdoor flame heater as claimed in  claim 1 , wherein the recessed mounted hole of the cover includes an annular support surface at a bottom edge thereof for positioning the glass tube. 
     
     
         7 . The improvement of combustion device for outdoor flame heater as claimed in  claim 1 , further comprising several pieces of protective wire mesh fixing between the pluralities of support members. 
     
     
         8 . The improvement of combustion device for outdoor flame heater as claimed in  claim 1 , wherein the glass tube includes an upper opening having a section of heat-resistant net tube; the heat-resistant net tube includes countless meshes at a periphery thereof, a lid body at an upper end thereof and a bottom outlet connected to the upper opening of the glass tube; a bowl-shaped body has a bottom locked at a top of the lid body by a bolt and a multitude of circulation holes at a periphery thereof. 
     
     
         9 . The improvement of combustion device for outdoor flame heater as claimed in  claim 8 , wherein the heat-resistant net tube further includes an annular sleeve body having a bottom edge forming an inserted hole for inserting the upper opening of the glass tube and the inserted hole has a plurality elastic piece at a periphery thereof. 
     
     
         10 . The improvement of combustion device for outdoor flame heater as claimed in  claim 8 , wherein the bowl-shaped body has a top connected to a reflection cover.