| 摘要 |
PURPOSE: A gas switching valve used in a propane-butane gas burner is provided to improve the convenience of use by supplying butane gas if propane gas is not supplied into the propane-butane gas burner. CONSTITUTION: A gas switching valve(1) has a valve stem(10) made of metal. A knob(10a) made of synthetic resin is coupled to an upper end of the valve stem(10) of the gas switching valve(1). A screw coupling section(19) is formed at a lower center portion of the gas switching valve(1). A butane gas shielding section(13) is formed at a lower portion of the screw coupling section(19). A butane gas feeding hole(14) is formed at an outer peripheral portion of the butane gas shielding section(13). A butane gas feeding eccentric cam(15) having a perforation hole(12) is arranged in opposition to the butane gas shielding section(13). An actuating section(21) is formed at a center of a valve body(20).
|
