Gas combustor

Abstract

The present invention relates to a gas combustor, including a base seat fastened in a housing, the base seat is formed with a seat hole allowing a gas intake control valve to be received; when a control rod of the gas intake control valve is pushed by a press button, a first and a second spring are synchronously compressed, so the first spring pushes a first thimble valve till the first spring is abutted against a first valve seat, the first thimble valve compresses a third spring and opens the first valve seat, thereby allowing fuel gas to rapidly pass the gas intake control valve; the residual displacement stroke of the control rod is absorbed by the first spring, and the fuel gas passing the gas intake control valve is enabled to enter a flame device so as to be ignited by static spark generated by a piezoelectric device.

What is claimed is: 
     
         1 . A gas combustor, including:
 a housing, a base seat being installed therein, openings formed at the top and the bottom of said base seat being respectively disposed with a flame device and a connection device, wherein an opening at the front of said housing being disposed with a press button, the base seat being respectively and axially formed with an accommodation slot allowing a piezoelectric device to be accommodated and a seat hole allowing a gas intake control valve to be received corresponding to the location where said press button being disposed; wherein, said connection device being connected to a fuel channel inside said base seat through a convey pipe, said fuel channel being communicated with said seat hole through a gas outlet, and the bottom of said flame device being disposed in an insertion hole formed at the top of said base seat, and said insertion hole being communicated with said seat hole; and   said gas intake control valve including a control rod, a first spring and a second spring sleeved in from the front of said seat hole, and a front end cover being provided at the front of said seat hole, so the front of said control rod being allowed to be protruded out from said front end cover and adjacent to said press button; and including a first valve seat sleeved in from the rear of said seat hole, and a first thimble valve and a third spring being provided in said first valve seat, thereby allowing said first and said second spring to be respectively disposed between said control rod and one end of said first thimble valve and between said control rod and said first valve seat, an opening at the rear of said first valve seat being sleeved with a sleeve pipe, thereby allowing said third spring to be disposed between the other end of said first thimble valve and said sleeve pipe, and a rear end cover being provided at the rear of said seat hole;   when said control rod being pushed by said press button, said first and said second spring being synchronously compressed, so said first spring pushing said first thimble valve till said first spring being abutted against said first valve seat, said first thimble valve compressing said third spring and opening said first valve seat, thereby allowing the fuel gas to enter said seat hole through said gas outlet of said fuel channel and rapidly pass said gas intake control valve; the residual displacement stroke of said control rod being absorbed by said first spring, and the fuel gas passing said gas intake control valve being enabled to reach said insertion hole and enter said flame device so as to be ignited by the static spark generated by said piezoelectric device.   
     
     
         2 . The gas combustor as claimed in  claim 1 , wherein a connection pipe is provided between said seat hole and said insertion hole of said base seat, and said connection pipe is provided on the outer surface of said base seat. 
     
     
         3 . The gas combustor as claimed in  claim 2 , wherein two ends of said connection pipe are respectively connected to a first thread seat and a second thread seat, and said first thread seat and said second thread seat are respectively inserted in said seat hole and said insertion hole. 
     
     
         4 . The gas combustor as claimed in  claim 1 , wherein the interior of said sleeve pipe is provided with a filter. 
     
     
         5 . The gas combustor as claimed in  claim 1 , further including a continue button, said continue button is disposed in an opening at the top front of said housing and longitudinally sleeved with a seventh spring abutted against the interior of said housing, the bottom of said continue button is formed with a buckle hook, the top surface of said press button is formed with a buckle hole allowing said buckle hook to be buckled, thereby preventing said press button from being automatically recovered and allowing said gas intake control valve to be remained in an opened status. 
     
     
         6 . The gas combustor as claimed in  claim 1 , further including a safety button, said safety button is disposed in an opening at the bottom front of said housing and the top surface thereof is protrudingly formed with at least a stop unit; the bottom surface of said press button is protrudingly formed with a stop block corresponding to said stop unit and abutted against said stop unit, so said press button is formed in a locking status in which the press operation is not allowed, when said safety button is laterally pulled for allowing said stop unit to be released from said stop block, said press button is formed in an unlocking status in which the press operation is allowed. 
     
     
         7 . The gas combustor as claimed in  claim 1 , wherein said connection device is provided with a connection ring, the interior of said connection ring is formed with a connection part, said connection part is communicated a ring hole of said connection ring, and a connection segment formed at one end of a filling nozzle passes said ring hole and is further combined with a securing end cover, one end of said convey pipe passes said securing end cover and protrudes into said filling nozzle. 
     
     
         8 . The gas combustor as claimed in  claim 7 , wherein said connection ring is formed with a positioning slot at the top periphery for being sleeved in a positioning tenon correspondingly formed inside the opening at the bottom so as to be fastened. 
     
     
         9 . The gas combustor as claimed in  claim 1 , wherein said fuel channel of said base seat is further communicated with a gasify chamber and a combination hole allowing a press stabilizing device to be installed therein, said gas outlet is laterally communicated with said gasify chamber; said fuel channel and said insertion hole are respectively installed with a first and a second gas supply valve, said first gas supply valve includes a second valve seat connected to the upstream of said fuel channel, the interior of said second valve seat is provided with a fourth spring and a second thimble valve protruding out of the front of said second valve seat, the rear of said second thimble valve is connected to said press stabilizing device; and said second gas supply valve includes a third valve seat connected to the upstream of said insertion hole, the interior of said third valve seat is provided with a sixth spring and a third thimble valve protruding out of the bottom of said third valve seat, and the downstream of said insertion hole allows said flame device to be inserted. 
     
     
         10 . The gas combustor as claimed in  claim 9 , wherein said press stabilizing device includes:
 a partition membrane, formed as an elastic membrane made of a polymer material, the periphery thereof is connected to the bottom wall of said combination hole, the bottom of said partition membrane is adjacent to said gasify chamber, wherein the bottom of said partition membrane is connected to a passive member sleeved with said second thimble valve, the top thereof is connected to a support member; and   a regulation seat, fitted in a fasten seat with a rotary manner, and a shaft rod at the top thereof is protruded out of an opening at the top of said fasten seat; said fasten seat is fastened in said combination hole, and the bottom periphery of said fasten seat is served to press the periphery of said partition membrane onto the bottom wall of said combination hole, and a fifth spring is disposed between the top inner wall of said regulation seat and said support member;   through rotating said regulation seat to allow said regulation seat to axially ascend or descend in said fasten seat, said fifth spring disposed between said regulation seat and said support member at the top of said partition membrane is compressed or stretched for adjusting the pressure, when the pressure applied by said fifth spring to said partition membrane is greater than the pressure of said fourth spring in said first gas supply valve and the fuel pressure, and the pressure applied by said fifth spring to said partition membrane is smaller than the fuel gasifying pressure in said gasify chamber, said partition membrane, said support member and said passive member reciprocally and synchronously drive said second thimble valve to move so as to open or close said second valve seat of said first gas supply valve, thereby adjusting the pressure of the fuel entering said gasify chamber and the amount of gasified fuel gas flowing towards said gas outlet.   
     
     
         11 . The gas combustor as claimed in  claim 10 , wherein said press stabilizing device further includes a rotary button disposed on said shaft rod at the top of said regulation seat, said rotary button is protruded out of the opening at the rear of said housing. 
     
     
         12 . The gas combustor as claimed in  claim 10 , wherein said press stabilizing device further includes a position limiting sheet having its central area being protruded, the periphery thereof is connected to said partition membrane, and the upper portion of said support member is protruded out of a position limiting hole preformed at the center of said position limiting sheet. 
     
     
         13 . The gas combustor as claimed in  claim 10 , wherein the bottom of said regulation seat is radially formed with a flange sleeved with a friction ring which forms the friction interfere with the inner wall of said fasten seat. 
     
     
         14 . The gas combustor as claimed in  claim 9 , wherein said flame device includes an engagement pipe inserted in the opening at the top of said housing and the bottom thereof abutted against the top periphery of said insertion hole, the interior of said engagement pipe is provided with a mix pipe, the bottom of said mix pipe is combined with a nozzle seat, and an inner flange at the bottom of said engagement pipe is clamped therebetween, the front of said nozzle seat is provided with a nozzle, the mid portion of said mix pipe is formed with plural air holes, so air is able to be introduced from air guiding slots preformed at the front of said housing then pass said air holes so as to enter said mix pipe, thereby being mixed with the fuel gas ejected by said nozzle;
 when said mix pipe is not inserted in said insertion hole, said third thimble valve closes said third valve seat due to the stretch effect provided by said sixth spring, thereby forming a fuel gas terminating status; when said mix pipe is inserted in said insertion hole, said nozzle seat pushes said third thimble valve so as to compress said sixth spring, the fuel gas is allowed to pass said third valve seat and ejected out from said nozzle at the front of said nozzle seat.   
     
     
         15 . The gas combustor as claimed in  claim 14 , wherein the top of said engagement pipe is further formed with an outer flange, an inner wall of said outer flange is longitudinally formed with a wire slot penetrating said outer flange, and the bottom surface of said outer flange is preformed with an annular concave slot capable of being sleeved with an electric conductive metal ring, said electric conductive ring is further coupled to an electric conductive extending wire received in said wire slot; said engagement pipe is disposed in a detach ring, and the bottom of an external pipe is inserted between said engagement pipe and said mix pipe, and said electric conductive extending wire is received in said external pipe, and the end section of said electric conductive extending wire is fastened on a conductive wire positioning ring at the inner front of said external pipe; and the top opening of said base seat is longitudinally formed with a terminal positioning hole for being installed with an electric conductive terminal, said electric conductive terminal is connected to said piezoelectric device through an electric conductive wire, and said electric conducive ring is in constant contact with said electric conductive terminal, thereby forming an electrical connection from said piezoelectric device to said external pipe. 
     
     
         16 . The gas combustor as claimed in  claim 14 , wherein the interior of said nozzle is provided with a filter. 
     
     
         17 . The gas combustor as claimed in  claim 15 , wherein the front of said external pipe is further connected to a flame pipe, a gas guiding set capable of guiding the flow direction of the mixed fuel gas is installed inside said flame pipe, and a packing ring is abutted against said gas guiding set for enabling said gas guiding set to be fastened in said flame pipe. 
     
     
         18 . The gas combustor as claimed in  claim 17 , wherein the front of said flame pipe is further connected to an extending pipe.