The present invention discloses an
oxygen production component, a mixing component and a
hydrogen and
oxygen supply device, including a
molecular sieve adsorption
tower, an air inlet port, an air outlet port, a lower end extension seat, an
insertion opening, an insert circuit board, a
pressure sensor, a mounting groove, a locking component, a channel switching component and a
solenoid valve. The present invention has the following advantages and effects: the
insertion opening is used for inserting an insert circuit board welded with a
pressure sensor, and the insert circuit board has the
advantage of convenient installation / disassembly; the setting of the locking component can lock the insert circuit board inserted into the
insertion opening; the channel switching component is creative, and the air filled into the air inlet port can be sent to the locking component or the interior of the
molecular sieve adsorption
tower through the channel switching component. The locking component is a pneumatic structure, which can use the filled air as a driving source to operate. The air can not only be used for
oxygen production operations in the
molecular sieve adsorption
tower, but also be used as a driving source for the locking component, without the need to set up other additional driving sources.