Manually controlled high pressure valve and a glass chiller using thereof

A manually controlled high pressure valve, comprising:

• a valve body having an air inlet;
• an air outlet and a mounting hole;
• an adjusting device arranged in the mounting hole by hermetically connecting to an inside wall of the mounting hole and having an air inlet hole and an air outlet hole for controlling the connection or closing of the air inlet and the air outlet;
• and
• a limiting block arranged below the adjusting device and matched with the adjusting device and the air inlet for controlling air intake from the air inlet hole of the adjusting device;
• wherein the adjusting device further comprises a connecting pipe arranged in the mounting hole which has an open upper end;
• the air inlet hole is arranged at a lower end of the connecting pipe and the air outlet hole is arranged on a side wall of the connecting pipe;
• two first annular sealing rings are arranged on the side wall of the connecting pipe and situated on an upper and a lower sides of the air outlet hole and hermetically connected to the inside wall of the mounting hole;
• a sealing cover having a first through hole in a middle is arranged at the open upper end of the connecting pipe and hermetically connected to the open upper end of the connecting pipe;
• a pressing rod having an annular protrusion penetrates through the first through hole and is inserted into the connecting pipe;
• a spring for returning the pressing rod is sleeved outside the pressing rod with one end arranged on an upper end face of the sealing cover and an other end arranged on a lower end face of the annular protrusion;
• and an upper end of a fixing sleeve penetrates through a top of the pressing rod and is cooperatively connected to the annular protrusion and a lower end of the fixing sleeve is detachably connected to the mounting hole;
• the sealing cover comprises a cylindrical sealing cover body having the first through hole in the middle and a second annular sealing ring fixedly arranged on a lower surface of the cylindrical sealing cover body and surrounded the periphery of the first through hole.