Barbecue lighter with safety function

Abstract

A barbecue lighter with safety function is provided according to the present invention, including: a casing having a fuel cavity and an operation cavity; a fuel container; an elongated rod tube; an operation member; a piezoelectric unit; a vent valve mechanism; a gas lever, which cooperates with the vent valve mechanism to open or close the gas path; a pin fixed to the inner wall of the casing; a safety device including a groove with corner positioned between the bottom end of operation member and the gas lever; and a control assembly fixed to the inner wall of the casing longitudinally. The fixed pin is enclosed in the groove with corner to slide relatively therein along the groove. The bottom end of the safety device engages with the gas lever. The control assembly is positioned at one side of the safety device to control the movement of the safety device.

1 . A barbecue lighter with a safety function, comprises: 
 a casing holding at least a fuel container, a piezoelectric unit, a gas lever for opening or closing a vent valve mechanism and an operation member for actuating the piezoelectric unit and the gas lever;    a safety member positioned between the operation member and the gas lever, and defining a L-shaped groove;    a pin coupled to the casing and its position being changeable between a lock position and a release position;    a control assembly coupled to the safety member for switching the position of the safety member;    wherein the safety member actuates the gas lever to release gas when the pin is in the release position and the operation member is actuated.    
   
   
       2 . The barbecue lighter of  claim 1 , wherein the safety member further comprises a projecting portion.  
   
   
       3 . The barbecue lighter of  claim 2 , wherein the gas lever includes a groove on an end portion for slidably holding a tip of the projecting portion of the safety member and another end portion coupled to the vent valve mechanism.  
   
   
       4 . The barbecue lighter of  claim 1 , wherein the control assembly comprises a pushing block, a pushing bar and a lock button.  
   
   
       5 . The barbecue lighter of  claim 4 , wherein the safety member further comprises a slidable block, and wherein the pushing block defines a vertical cavity with one side open for the slidable block to be slidably disposed therein, and wherein a first resilient element is disposed in the vertical cavity pressed against a portion of the slidable block of the safety member and the inner bottom of the pushing block.  
   
   
       6 . The barbecue lighter of  claim 4 , wherein a second resilient element is disposed around the pushing bar and against the lock button.  
   
   
       7 . The barbecue lighter of  claim 5 , wherein the safety member further comprises a stud on the slidable block for positioning and guiding the first resilient element.  
   
   
       8 . The barbecue lighter of  claim 1 , wherein the vent valve mechanism comprises a flame regulator for regulating flame.  
   
   
       9 . The barbecue lighter of  claim 1 , wherein the safety member is in the lock position when the pin is in a transverse portion of the L-shaped groove.  
   
   
       10 . A barbecue lighter with safety function comprising: 
 a casing having a fuel cavity and an operation cavity;    a fuel container enclosed in the fuel cavity of the casing;    an operation member disposed in the operation cavity of the casing;    a piezoelectric unit disposed in the operation cavity of the casing for generating a discharge voltage;    a vent valve mechanism disposed in the operation cavity of the casing;    a gas lever disposed in the operation cavity of the casing, which cooperates with the vent valve mechanism to open or close a gas path;    a pin fixed to an inner wall in the operation cavity;    a safety device including a groove with corner positioned between a bottom of the operation member and the gas lever, the fixed pin enclosed in the groove with corner to slide relatively therein along the groove; and    a control assembly in the operation cavity for controlling movement of the safety device between a lock status and an unlocked status.    
   
   
       11 . The barbecue lighter of  claim 10 , wherein the safety device further comprises a body including a projecting portion with a projecting tip; and a slidable block on one side of the body, and wherein a top end of the safety device is positioned against a bottom portion of the operation member.  
   
   
       12 . The barbecue lither of  claim 11 , wherein a transverse groove is formed on one portion of the gas lever, for slidably holding the projecting tip, and wherein a width of the projecting tip is narrower than a length of the transverse groove, and wherein another portion of the gas lever engages with the vent valve mechanism.  
   
   
       13 . The barbecue lighter according to  claim 10 , wherein the control assembly comprises a pushing block which extends longitudinally, a pushing bar which extends transversely, and a lock button.  
   
   
       14 . The barbecue lighter of  claim 13 , wherein the pushing block defines a vertical cavity formed therein with a side open for the slidable block to slide vertically therein, and a first resilient element is positioned between a lower portion of the vertical cavity and against the safety device and an inner bottom of the pushing block.  
   
   
       15 . The barbecue lighter of  claim 14 , wherein the pushing bar is fixed to the inner wall longitudinally through a fixing block, and wherein a lock button is positioned on the casing and projects from the casing outwardly, and wherein a second resilient element is disposed around the pushing bar between the fixing block and the lock button.  
   
   
       16 . The barbecue lighter of  claim 15 , wherein the safety device further comprises a stud positioned at a bottom of the slidable block, for positioning and guiding the first resilient element.  
   
   
       17 . The barbecue lighter of  claim 16 , wherein the first resilient element and second resilient element are compression springs.  
   
   
       18 . The barbecue lighter of  claim 10 , wherein the groove with corner is L-shaped.  
   
   
       19 . The barbecue lighter of  claim 10 , wherein the lower portion of the casing is transparent.