Patent Publication Number: US-7914281-B2

Title: Gas combustion apparatus and combustion gas setting device thereof

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a gas combustion apparatus, more particularly to a gas combustion apparatus having combustion gas setting device, the combustion gas setting device is not only able to control the transportation and the output amount of the combustion gas, but also to reset the output amount of the combustion gas of the gas discharging valve, so the pressure differences inside the storage tank due to different operating locations can be accommodated. 
     2. Description of Related Art 
     Fire is a must-have matter in human being&#39;s daily life, with fire we can cook food, have lights, even operating casting, melting or welding metals. Take a gas combustion apparatus, a refillable lighter or a portable gas stove, for instance, liquefied gas is adopted so operations of ignition and cooking can be processed. So far, the gas combustion apparatus still has a role that is hard to be replaced. 
     A combustion gas control device is one of the important units for a gas combustion apparatus, and has functions of transportation of combustion gas, continuous supply of combustion gas and adjusting output amount of combustion gas. A conventional combustion gas control device of a gas combustion apparatus is illustrated with the Taiwan Patent No. M306647, corresponding to the U.S. patent application Ser. No. 11/590,911, filed by the applicant of the present invention, when a sliding member is pressed and downwardly moved, an active member provided at one end of the sliding member is driven to push a passive sheet of a swing member, so a connecting sheet provided at the other end of the passive sheet is raised, so a gas discharging valve fastened on a top end of a storage tank is stretched so as to obtain a combustion gas supplying status. If a combustion gas continuously supplying status is desired to be remained, a continue switch provided on a housing is pulled, so a stopping block provided on one end of the continue switch is laterally moved to a location that is on top of a convex sheet of the sliding member, so the sliding member is not able to be recovered to the initial location, the combustion gas continuously supplying status is therefore obtained. The gas discharging valve is that a gas discharging valve gate being connected to a gas adjusting valve seat provide below the gas discharging valve gate, an adjusting button is provided on one lateral end of the gas discharging valve gate and is connected to a Y-shaped positioning member, and the positioning member is exposed outside of the housing, when the adjusting button is operated, the gas discharging valve can supply combustion gas within a preset output range. 
     In view of the combustion gas control device of the gas combustion apparatus disclosed above, operations of transportation of combustion gas, continuous supply of combustion gas and adjustment of output amount of combustion gas are processed by relative units and have to be individually operated, so operation complexity is increased. In fact, various storage tanks for storing combustion gas or fuel, e.g. a storing device for liquefied gas, are necessary because it can continuously provide combustion material to a combustion device for facilitate the combustion operation. 
     Due to different zones on the earth, for example zones at higher latitudes, the weather there is colder so the inner storing pressure of gas storing tank is lower, this is a negative factor for the gas and would result in the output amount of combustion gas of the gas discharging valve is not enough, therefore an operation of igniting combustion gas at a combustion section is not able to be smoothly processed. What&#39;s more, there are pressure differences between canned gases sold in different zones of the world, so the pressure of filled liquefied gas may be too much or too less. Basically, an output range of combustion gas of a gas discharging valve of a gas combustion apparatus is preset before being shipped out, so the output amount of the gas discharging valve is not able to be reset to accommodate the pressure differences of liquefied gases stored in gas storage tanks. The adjusting button is only capable of adjusting the output amount of the combustion gas of the gas discharging valve within the preset range, and the initial setting of the gas discharging valve is not able to be adjusted. 
     SUMMARY OF THE INVENTION 
     The applicant of the present invention has devoted himself to design and commercially distribute gas combustion apparatuses and combustion tools, with a hope to overcome the disadvantages that output amount of combustion gas of a gas discharging valve is not able to be reset for accommodating pressure differences of liquefied gases stored in gas storage tanks, after try and error, the present invention “Gas combustion apparatus and combustion gas setting device thereof” is provided. 
     One object of the present invention is to provide a gas combustion apparatus having combustion gas setting device, the combustion gas setting device can be served to reset an initial setting of a gas discharging valve for accommodating pressure differences of liquefied gases stored in storage tanks. 
     Another object of the present invention is to a gas combustion apparatus, and only one step is needed to control the transportation and the continuous supply and the output amount of the combustion gas. 
     For achieving the objects mentioned above, one solution provided by the present invention is to provide a gas combustion apparatus, comprises: a storage tank, a tank chamber is provided in the storage tank, a hollow tank seat is radially and protrudingly provided on the storage tank, a connecting section provided at the front end of the storage tank is axially provided with a tank opening that communicates with the tank chamber, the tank opening is connected to a gas discharging valve, the gas discharging valve is that a gas discharging valve gate being screw-fitted with a gas adjusting valve seat, and a gas discharging nozzle is axially extended from the gas discharging valve gate; a combustion gas setting device, a connecting hole of a setting unit and a connecting hole of an adjusting unit are respectively connected to the gas discharging valve gate, so after the gas discharging nozzle is passed through the top end of the connecting holes, the gas discharging nozzle is connected to a gas conveying tube, a first resilient member is provided between the adjusting unit and the inside of the housing, and at least one pushing rod is radially and protrudingly provided on the adjusting unit; an ignition device having a sliding member, the rear end of the sliding member is connected to the tank seat and is disposed against a piezoelectric device, the piezoelectric device has a conductive wire extending to a combustion device; a housing composed by two housing members engaging with each other and provided in front of the storage tank for covering the combustion gas setting device, an adjusting slot composed by a vertical and a horizontal slots is provided on the housing with respect to the location where the pushing rod is provided so the pushing rod can be exposed, a key slot is formed at the periphery of the housing and is served to receive the sliding member, a housing tenon is extended from the front end of the housing, the center of the housing tenon has a positioning hole; a combustion device, the combustion device is fastened on the positioning hole via a retaining tube, the rear end of the retaining tube is connected to the gas conveying tube and the front end of the retaining tube is connected to a mixing tube, the front end of the mixing tube is provide with a flame nozzle; and an outer tube, after the outer tube is connected to a connecting ring, the connecting ring is connected to the housing tenon, so the flame nozzle is disposed at the front end of the outer tube; when the pushing rod of the adjusting unit is forwardly pushed from the bottom end of the vertical slot of the adjusting slot and is rotated into the horizontal slot, the first resilient member is compressed and the gas discharging nozzle is stretched by the adjusting unit, and the gas discharging valve gate is rotated in the gas adjusting valve seat, so a combustion gas supplying status is obtained and the output amount of combustion gas can be adjusted; when the pushing rod of the adjusting unit is forwardly pushed to the top end from the bottom end of the vertical slot of the adjusting slot, the first resilient member is compressed and the gas discharging nozzle is stretched by the adjusting unit, so the adjusting unit is released from the gas discharging valve gate, then the setting unit is rotated and the gas discharging valve gate is rotated in the gas adjusting valve seat, therefore the output amount of combustion gas of the gas discharging valve is able to be reset. 
     Another object of the present invention is to provide a combustion gas setting device capable of resetting initial settings of a gas discharging valve for accommodating pressure difference of liquefied gas stored in a storage tank. 
     Another solution provided by the present invention is to provide a combustion gas setting device used in a gas combustion apparatus, comprises a storage tank, the front end of the storage tank is provided with a tank opening that communicates with a tank chamber provided inside the storage tank, the tank opening is connected to a gas discharging valve, the gas discharging valve is that a gas discharging valve gate being screw-fitted with a gas adjusting valve seat, and a gas discharging nozzle is axially extended from the gas discharging valve gate; a setting unit, the setting unit is connected to the gas discharging valve gate; an adjusting unit, the adjusting unit is provided adjacent to the setting unit and a connecting hole provided at the bottom end of the adjusting unit is connected to the gas discharging valve gate, so after the gas discharging nozzle is passed through the top end of the connecting hole, the gas discharging nozzle is connected to a gas conveying tube, a first resilient member is provided between the adjusting unit and the inside of the housing, and at least one pushing rod is radially and protrudingly provided on the adjusting unit; and a housing, an adjusting slot composed by a vertical and a horizontal slots is provided on the housing with respect to the location where the pushing rod is provided so the pushing rod can be exposed; when the pushing rod of the adjusting unit is forwardly pushed from the bottom end of the vertical slot of the adjusting slot and is rotated into the horizontal slot, the first resilient member is compressed and the gas discharging nozzle is stretched by the adjusting unit, and the gas discharging valve gate is rotated in the gas adjusting valve seat, so a combustion gas supplying status is obtained and the output amount of combustion gas can be adjusted; when the pushing rod of the adjusting unit is forwardly pushed to the top end from the bottom end of the vertical slot of the adjusting slot, the first resilient member is compressed and the gas discharging nozzle is stretched by the adjusting unit, so the adjusting unit is released from the gas discharging valve gate, then the setting unit is rotated and the gas discharging valve gate is rotated in the gas adjusting valve seat, therefore the output amount of combustion gas of the gas discharging valve is able to be reset. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a 3D exploded view of the gas combustion apparatus provide by the present invention; 
         FIG. 2  is a 3D exploded view of the base seat of the storage tank provided by the present invention; 
         FIG. 3  is a 3D exploded view of the combustion device provided by the present invention; 
         FIG. 4  is a 3D cross sectional view of the storage tank after being assembled; 
         FIG. 5  is a 3D view of the gas combustion apparatus provided by the present invention after being assembled; 
         FIG. 6  is a cross sectional view of the gas combustion apparatus provided by the present invention after being assembled; 
         FIG. 7   a  is a cross sectional view of the latching member and the gas supply suspending button in a non-operated status; 
         FIG. 7   b  is a cross sectional view of the latching member and the gas supply suspending button in an operated status; 
         FIG. 8  is a cross sectional view of the combustion gas setting device while combustion gas is continuously supplied; 
         FIG. 9  is a cross sectional view of the combustion gas setting device while the initial value of the gas discharging valve is reset. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     As shown from  FIG. 1  to  FIG. 7   b , the gas combustion apparatus provided by the present invention is composed by a storage tank  1 , a combustion gas setting device  2 , an ignition device  3 , a housing  4 , a combustion device  5  and an outer tube  6 . 
     The storage tank  1  is served to store liquefied gas, a bottom end of a tank body  11  is provided with a tank cover  12 , the bottom end of the tank cover  12  is connected to a filling valve  13 , as shown in  FIG. 2 , the filling valve  13  is provided in a bottom hole  121  preset on the bottom end of the tank cover  12 , the filling valve  13  is served to supply the liquefied gas for combustion. For obtaining a gas sealing status between the tank body  11  and the tank cover  12 , an orifice  122  provided on the top end of the tank cover  12  is connected to a step-shaped retaining ring  14 , a jointing area defined by a ring sheet  141  and a ring column  142  provided adjacent and below the ring sheet  141  is provided with an O-shaped ring  143 , then the ring column  142  is provided in the orifice  122  provided at the top end of the tank cover  12 , so the O-shaped ring  143  is clamped by the top end of the tank cover  12  and the ring sheet  141 , then the tank cover  12  is connected, e.g. being screwed at the bottom portion of the tank body  11 , thus the retaining ring  14  is disposed against an inner wall of a bottom end of a tank chamber  111  provided in the tank body  11  and the retaining ring  14  is therefore positioned. When the tank cover  12  is rotated, the O-shaped ring  143  is gradually tightened so as to obtain the gas sealing status. The liquefied combustion material, e.g. gas, filled in the tank cover  12  passes through plural through holes  144  preset on the ring column  142  to enter and store in the tank chamber  111 . 
     A connecting section  112  provided at the top end of the tank body  11  is axially provided with a tank opening  113  that communicates with the tank chamber  111  for accommodating and positioning a gas discharging valve  15 . A concave neck section  114  is defined between the connecting section  112  and the tank body  11  and is served to connect to the housing  4 . A tank seat  115  is radially and protrudingly provided on the tank body  11  and an accommodating chamber  116  is defined within the tank seat  115 , inner walls of the tank seat  115  that oppositely provided are respectively provided with a jointing section  117 , e.g. a sliding slot, for accommodating and positioning the ignition device  3 . 
     As shown in  FIG. 1 , the gas discharging valve  15  is a conventional gas discharging valve and is fastened on the tank opening  113 , the gas discharging valve  15  is that a gas discharging valve gate  151  screwed with a gas adjusting valve seat  152 , and the gas adjusting valve seat  152  is fastened on the tank opening  113  and a gas discharging nozzle  153  is axially provided on the gas discharging valve gate  151 , the gas discharging nozzle  153  is connected to a gas conveying tube  154 , e.g. a soft tube, so combustion gas can be conveyed to the combustion device  5 . When the gas discharging nozzle  153  is stretched, the combustion gas stored in the storage tank  1  is able to be supplied, and when retracted, the combustion gas supply is terminated. 
     The combustion gas setting device  2  is composed by a setting unit  21 , an adjusting unit  22  and a first resilient member  23 , a central axial hole  211  of the setting unit  21  is connected to the gas discharging valve gate  151 , and the periphery of the setting unit  21  is provided with plural pulling slots  212 . A connecting hole  221  is axially provided on the adjusting unit  22  and is also connected to the gas discharging valve gate  151 . From top to bottom, the connecting hole  221  is in sequence and protrudingly provided with a connecting section  221   a , e.g. plural convex teeth, and a releasing section  221   b , the convex teeth of the connecting section  221   a  are engaged with concave slots of the gas discharging valve gate  151 , so that after the gas discharging nozzle  153  is passed through a nozzle hole  221   c  provided on the top end of the connecting hole  221 , the gas discharging nozzle  153  is connected to a connecting member  222 , e.g. a buckling ring. When the adjusting unit  22  is axially moved, a releasing status is defined by the gas discharging valve gate  151  and the releasing section  221   b  or an engaging status is defined when the gas discharging valve gate  151  is engaged with the connecting section  221   a , so the gas discharging nozzle  153  is stretched for supplying gas or is retracted for terminating gas supply. 
     In order to provided an automatic recovery function to the adjusting unit  22  after the adjusting unit  22  is axially moved, the first resilient member  23 , e.g. a spring, is provided between the adjusting unit  22  and the housing  4 , and the inside of the resilient member  23  can allow the gas discharging nozzle  153  and the gas conveying tube  154  pass through so the gas transportation is not interfered. And at least one pushing rod  223  is radially and protrudingly provided on the adjusting unit  22 , a pair of pushing rods  223  that oppositely protrude are preferably provided, so the pushing rods  223  are able to be exposed via adjusting slots  411  of the housing  4  for operations of axial movements and rotations. 
     The ignition device  3  includes a sliding member  31 , a piezoelectric device  32  and a latching member  33 . A frame-shaped member  312  is extruded from a rear end of a pressing sheet  311  of the sliding member  31 , the frame-shaped member  312  is connected to the accommodating chamber  116  formed in the tank seat  115  and is provided against the piezoelectric device  32 , so after the sliding member  31  is released, the sliding member  31  can be automatically recovered and a locking status is automatically defined. For having a smooth sliding effect, positioning sections  313 , e.g. sliding tenons, are provided on the frame-shaped member  312  with respect to the location where the jointing sections  117 , e.g. sliding slots, are provided, so when engaged, the sliding member  31  can smoothly slide in the accommodating chamber  116  for pressing the piezoelectric device  32 . The front end of the pressing sheet  311  is provided with two parallel rack sheets  314  and a guiding slot  315  is defined between the two rack sheets  314 , so the latching member  33  can be accommodated or can be longitudinally moved. Two buckling slots  316  defined as a pair are respectively, concavely and longitudinally provided on the two rack sheets  314 , so operations of locking or releasing the latching member  33  can be defined with respect to the buckling slots  316 . 
     The piezoelectric device  32  is a conventional piezoelectric device and is provided in the accommodating chamber  116  formed in the tank seat  115 , and the piezoelectric device  32  can be pressed by the sliding member  31  so a conductive wire  321  thereof is extended to the combustion device  5  for igniting the mixed combustion gas. 
     The latching member  33  is a reverse-T shaped key member, a pressing button  331  is protrudingly provided on the top end of the latching member  33 , a buckling tenon  333  is respectively and horizontally extended from a left and a right sides of a stopping block  332  provided at the bottom of the latching member  33 , and a second resilient member  335 , e.g. a spring, is provided in a concave hole  334  provided at the bottom end of the stopping block  332 . As shown in  FIG. 1 ,  FIG. 4  to  FIG. 7   b , the pressing button  331  of the latching member  33  is received in the guiding slot  315 , and the two buckling tenons  333  are buckled in the buckling slots  316  so as to obtain a locking status, and the second resilient member  335  is provided across a rack slot  414  of the housing  4 . When the pressing button  331  is pressed, the second resilient member  335  is compressed so the buckling tenons  333  are released from the buckling slots  316 , the locking status is therefore released, then the sliding member  31  is able to be backwardly pressed to press the piezoelectric device  32 , a high voltage static electricity is generated is generated by the piezoelectric device  32  and is conveyed by the conductive wire  321 , and after an ignition operation is processed on the combustion device  5 , the sliding member  31  is immediately released and the sliding member  31  is forwardly moved due to the released energy generated by the piezoelectric device  32 , and when the sliding member  31  is moved to the latching member  33 , the buckling tenons  333  are automatically buckled in the buckling slots  316 , so a locking status is automatically obtained. 
     The housing  4  is mainly composed by two cover members  41  engaging with each other, and is disposed in front of the storage tank  1 , a T-shaped adjusting slot  411  is respectively provided on the two cover members  41  with respect to the locations where the pushing rods  223  of the adjusting unit  22  are provided, e.g. a horizontal slot being communicated with one lateral side of a vertical slot, so each of the pushing rods  223  can be installed in the corresponding adjusting slot  411  and be exposed outside of the housing  4 . The top end of the housing  4  is respectively provided with a key slot  412  and a button hole  413  for respectively accommodating the rack sheets  314  of the sliding member  31  and for allowing the pressing button  331  of the latching member  33  to be exposed. A rack slot  414  is provided inside the housing  4  and below the button hole  413  for accommodating the second resilient member  335 . A pair of neck sheets  415  are extended from the rear portion of the housing  4  so the concave neck section  114  of the storage tank  1  can be mounted therein. A housing tenon  42  is extended from the front portion of the housing  4 , the central and the lateral sides of the housing tenon  42  are respectively provided with a positioning hole  421  and a slit hole  422 , so the combustion device  5  and a guiding wire  322  can be accommodated and positioned, and a housing thread  423  is provided on the surface of the housing tenon  42  for being connected with combustion tools. 
     The housing  4  is further provided with a step-shaped gas supply suspending button  43  which is extended from a button hole  416  preset on the housing  4 . When the gas supply suspending button  43  is pressed, the bottom end thereof presses the gas conveying tube  154  and the gas conveying tube  154  is therefore flatten to stop the combustion gas supply. A flame on the combustion device  5  is snuffed out due to the described operation, then the gas supply suspending button  43  is released and is recovered due to the elasticity of the gas conveying tube  154 , thus the combustion gas can continue pass through the gas conveying tube  154  and the combustion device  5 , and the combustion gas is able to be supplied to a heating member  71  provided inside a soldering iron head  7  so as to obtain a smoldering status. A Y-shaped supporting rack  44  is pivotally connected to a rack slot  417  concavely provided at the bottom end of the housing  4 . When the gas combustion apparatus is not in use, the supporting rack  44  can be forwardly rotated to open for supporting the gas combustion apparatus. 
     As shown in  FIG. 3 , a rear end of a retaining tube  51  fastened on the positioning hole  421  is connected to the gas conveying tube  154  and a front end of the retaining tube  51  is connected to a mixing tube  52 , at least one gas introducing hole  521  is provided on the mixing tube  52 , when vaporized combustion gas passes through the mixing tube  52 , an air flow is generated and external air is introduced via the gas introducing hole  521 , so the introduced air enters the mixing tube  52  and is processed with a mixing operation to facilitate the combustion. The mixed combustion gas is jetted via a flame nozzle  53  connected to the front end of the mixing tube  52 . For obtaining a better thermal insulation efficiency, a thermal insulating ring  54  made of ceramic is provided at an outer side of the flame nozzle  53 . 
     To utilize the present invention as a gas combustion apparatus, the outer tube  6  is connected to a connecting ring  45 , then a connecting operation is processed on the connecting ring  45 , for example an inner thread  451  of the connecting ring  45  is screwed-fitted with the housing thread  423  of the housing tenon  42 , so the flame nozzle  53  is disposed on the front end of the outer tube  6 . An air venting slot  61  is provided on the outer tube  6  with respect to the location where the air introducing hole  521  is provided to facilitate the air introducing operation; after the latching member  33  is pressed to release the locking status, the sliding member  31  is pressed to compress the piezoelectric device  32  so the conductive wire  321  is in contact with the retaining tube  51 , high voltage static electricity is passed through the mixing tube  52  and is transferred via the flame nozzle  53 , thus a spark is generated between the flame nozzle  53  and the outer tube  6  to ignite the mixed combustion gas jetted by the flame nozzle  53 , so a gas combustion apparatus is obtained. As shown in  FIG. 6 . a guiding wire  322  is provided in the slit hole  422  for being in contact with the outer tube  6 , the guiding wire  322  is extended to the piezoelectricity device  32  so as to obtain a circuit. 
     The front end of the outer tube  6  can be provided with a soldering iron head  7 , the inside of the soldering iron head  7  has a heating member  71  and a retaining ring  72 , so the combustion flame can be served to heat and burn the heating member  71 , as shown in  FIG. 7   a , the gas conveying tube  154  is not pressed by the gas supply suspending button  43 , so the combustion gas can be continuously supplied to the combustion device  5 , and when the flame nozzle  53  is ignited, the generated flame can be served to heat and burn the heating member  71 ; as shown in  FIG. 7   b , when the gas supply suspending button  43  is pressed, the gas conveying tube  154  is flatten for terminating the combustion gas supply, the flame of the flame nozzle  53  is therefore snuffed out, then the gas supply suspending button  43  is released, so the combustion gas can be continued to pass through the gas conveying tube  154  and the combustion device  5 , and the combustion gas can be supplied to the heating member  71  which is in a flaming status and a smoldering status is obtained and a gas soldering iron is obtained. 
     Referring to  FIG. 1 ,  FIG. 4  to  FIG. 6  and  FIG. 8 , when the gas combustion apparatus provided by the present invention is desired to be operated, the pushing rods  223  of the adjusting unit  22  are upwardly pushed along the vertical slot of the T-shaped adjusting slot  411  of the housing  4  to compress the first resilient member  23 , because of the upward movement of the adjusting unit  22 , the gas discharging nozzle  153  of the gas discharging valve  15  is stretched, so a combustion gas supplying status is obtained, then the adjusting unit  22  is rotated in the horizontal slot of the adjusting slot  411  to adjust the output amount of the combustion gas. When a user presses the latching member  33  and the latching member  33  is moved to compress the second resilient member  335 , the buckling tenons  333  are released from the buckling slots  316  of the sliding member  31  so the locking status is released, then the sliding member  31  is pressed to press the piezoelectric device  32  provided in the tank seat  115 , so a high voltage static electricity is generated, the generated high voltage static electricity passes through the conductive wire  321  and the combustion device  5 , so a spark is generated between the retaining ring  72  and the flame nozzle  53 , the flame nozzle  53  is therefore ignited to heat and burn the heating member  71  provided inside the soldering iron head  7 . The gas supply suspending button  43  is pressed to snuff off the flame, then the gas supply suspending button  43  is released so the combustion gas is continuously supplied to the heating member  71  for processing a welding operation. When the operation is desired to be stopped, the adjusting unit  22  received in the horizontal slot is reversely moved and when the adjusting unit  22  is moved to the vertical slot, energy is released by the first resilient member  23 , and due to the generated energy the adjusting unit  22  is pushed to the bottom end of the vertical slot and the gas discharging nozzle  153  is retracted, the combustion gas supply is therefore terminated. 
     Referring to  FIG. 1 ,  FIG. 4  to  FIG. 6  and  FIG. 9 , if the output amount of the combustion gas of the gas discharging valve  15  is desired to be reset, the pushing rods  223  of the adjusting unit  22  are upwardly pushed to the top end of the vertical slot of the T-shaped adjusting slot  411  of the housing  4 , the first resilient member  23  is therefore compressed and the connecting section  221   a  provided in the connecting hole  221  of the adjusting unit  22  is upwardly moved, so the releasing section  221   b  is not engaged with the gas discharging valve gate  151 , a linking relationship is therefore released. The gas discharging nozzle  153  of the gas discharging valve  15  is stretched due to the upward movement of the adjusting unit  22 , a combustion gas supplying status is obtained. At least one tool is inserted into the adjusting slot  411  and the pulling slot  212  of the setting unit  21  is pulled so the gas discharging valve gate  151  is able to be rotated in the gas adjusting valve seat  152 , the output amount of the combustion gas of the gas discharging valve  15  is therefore reset. When the setting operation is finished, the adjusting unit  22  is released so energy is released by the first resilient member  23 , the adjusting unit  22  is pushed to the bottom end of the vertical slot, the connecting section  221   a  provided in the connecting hole  221  is again connected to the gas discharging valve gate  151  due to the downward movement of the adjusting unit  22 , and the gas discharging nozzle  153  is retracted, the combustion gas supply is therefore terminated. 
     The features of the present invention is that the adjusting unit of the combustion gas setting device is not only able to control the transportation and the output amount of the combustion gas, but also to reset the output amount of the combustion gas of the gas discharging valve via adjusting the setting unit, so the pressure differences inside the storage tank due to different zones can be accommodated; and only one step is needed for the adjusting unit to directly control the transportation and the continuous supply and preset output amount of the combustion gas; the gas combustion apparatus provided by the present invention is small in volume and easy to carry around; according to actual needs, the gas combustion apparatus provided by the present invention can adopt combustion tools, e.g. a combustion device or a gas soldering iron; a manual unlocking and an automatic locking functions are provided between the ignition device and the housing so children can be prevented from accidentally using; and by providing a gas supply suspending button, the combustion gas supply can be temporally terminated, so after the flame of the combustion device is snuffed out, the combustion gas can still be supplied to the heating member provided inside the soldering iron head. 
     It is to be understood, however, that even though numerous characteristics and advantages of the present embodiments have been set forth in the foregoing description, together with details of the structures and functions of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.