Diaphragm pump including improved drive mechanism and pump head

A mechanical actuated diaphragm pump for pumping fluids, the pump comprising:

• a pump housing having a pump chamber;
• a flexible diaphragm forming at least a portion of one wall at the pump chamber;
• a reciprocally movable member for causing reciprocal movement of a portion of the flexible diaphragm;
• a worm gear;
• a driven gear rotatably driven by the worm gear;
• a cam connected to the driven gear so as to be driven by the driven gear and for causing reciprocal movement of the reciprocally movable member;
• a motor supported by the pump housing, the pump housing including means for selectively and alternatively mounting the motor in a first alternative position and a second alternative position, in the first alternative position the motor is directly connected to the worm gear and in the second alternative position the motor is connected to the worm gear through a pulley drive.

A mechanical actuated diaphragm pump for pumping fluids, the pump comprising:

• a pump housing having a chamber;
• a diaphragm forming at least a portion of one wall of the chamber;
• a reciprocally movable member for causing reciprocal movement of a portion of the diaphragm;
• a rotating shaft connected to the reciprocally movable member such that rotation of the shaft causes reciprocation of the reciprocally movable member;
• a motor having an output shaft and for driving the rotating shaft, said motor being alternatively and selectively mountable with respect to the pump housing wherein the motor is mountable in a first alternative position such that the output shaft of the motor is fixed to the rotating shaft to drive the rotating shaft and alternatively the motor is mountable in a second alternative position with respect to the pump housing and such that the output shaft is connected to the rotating shaft through a pair of pulleys to drive the rotating shaft.

A mechanical actuated diaphragm pump for pumping fluids, the pump comprising:

• a pump housing having a pump chamber;
• a flexible diaphragm forming at least a portion of one wall at the pump chamber;
• a reciprocally movable member for causing reciprocal movement of a portion of the flexible diaphragm;
• a worm gear;
• a driven gear rotatably driven by the worm gear;
• a cam connected to the driven gear so as to be driven by the driven gear and for causing reciprocal movement of the reciprocally movable member;
• a motor supported by the pump housing and being selectively and alternatively mounted in a first alternative position and a second alternative position, in the first alternative position the motor is directly connected to directly drive the worm gear and in the second alternative position the motor is connected to the worm gear through a pulley drive.