A compressing diaphragm pump with multiple effects includes an eccentric roundel mount with three cylindrical eccentric roundels, a pump head body with three operating holes, and a diaphragm membrane with three annular positioning protrusions. A basic curved groove or other positioning structure is
A compressing diaphragm pump with multiple effects includes an eccentric roundel mount with three cylindrical eccentric roundels, a pump head body with three operating holes, and a diaphragm membrane with three annular positioning protrusions. A basic curved groove or other positioning structure is circumferentially disposed around each operating hole while a basic curved protrusion or other mating positioning structure is provided in the diaphragm membrane for suitably coupling with the corresponding groove or positioning structure in the pump head body upon assembly, resulting in a shortened length of moment arm from the basic curved protrusions or other positioning structures and an annular positioning protrusion, and a reduction in vibration-caused noise and resonant shaking in comparison with a conventional compressing diaphragm pump. The cylindrical eccentric roundels each includes a sloped top ring extending between an annular positioning groove and a vertical or inverted frustoconical flank of the eccentric roundel mount resulting in an extended service lifespan of the compressing diaphragm pump.
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1. A compressing diaphragm pump with multiple effects, said compressing diaphragm pump including a motor, a pump head body fixed to a motor housing, a roundel mount situated on a lower side of the pump head body and a plurality of eccentric roundels each having a top face and a fastening bore formed
1. A compressing diaphragm pump with multiple effects, said compressing diaphragm pump including a motor, a pump head body fixed to a motor housing, a roundel mount situated on a lower side of the pump head body and a plurality of eccentric roundels each having a top face and a fastening bore formed in the top face for receiving a fastening member, the eccentric roundels being mounted on the roundel mount to extend through operating holes in the pump head body, a diaphragm membrane fixed to the eccentric roundels, through which the fastening members extend and which is situated on an upper side of the pump head body, and a plurality of pumping pistons secured to respective said eccentric roundels by said fastening members extending through said diaphragm and arranged to be moved in a pumping action upon movement of the diaphragm membrane, wherein: the roundel mount is situated on a wobble plate such that rotation of the wobble plate by the motor causes the roundel mount to wobble, resulting in sequential up and down movement of the eccentric roundels, the sequential up and down movement of the eccentric roundels causing sequential, reciprocating movement of the pumping pistons,the pump head body includes at least one first vibration-reducing positioning structure respectively extending at least partially around each operating hole on the upper side of the pump head body,the diaphragm membrane includes at least one second vibration-reducing positioning structure at a respective position on the diaphragm membrane that corresponds to a position of said at least one first vibration-reducing positioning structure on the pump head body,the at least one first vibration-reducing positioning structure mates with the corresponding at least one second vibration-reducing positioning structure to reduce a moment arm generated by an acting force during pumping by movement of the diaphragm membrane, thereby generating less torque during said movement to decrease a strength of vibrations and vibration noise,the diaphragm membrane further includes a plurality of annular flanges arranged to mate with a respective annular positioning groove extending around and defining a horizontal top face of each of said eccentric roundels, anda section of the top surface of each said eccentric roundel is inclined relative to the horizontal top face to form a sloped top ring that extends from a respective said annular positioning groove to a vertical or inverted frustoconical flank of the respective eccentric roundel to increase a linearity of a distribution of components of a rebounding force of the diaphragm membrane that occurs in response to application of the acting force during operation of the diaphragm pump. 2. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein said motor includes an output shaft, said wobble plate includes an integral protruding cam-lobed shaft and a piston valvular assembly, and wherein: said output shaft of said motor extends through a shaft coupling hole in said wobble plate to cause said wobble plate to rotate; said integral protruding cam-lobed shaft of said wobble plate extends through a central bearing of said eccentric roundel mount; said pump head body is secured to an upper chassis of the said motor to encompass the wobble plate and eccentric roundel mount therein, said pump head body including a plurality of said operating holes disposed at locations corresponding to locations of said plurality of eccentric roundels, each operating hole having an inner diameter bigger than an outer diameter of a corresponding one of said eccentric roundels for respectively receiving the corresponding one of the eccentric roundels; said diaphragm membrane is made of a semi-rigid elastic material and placed on the pump head body, said diaphragm membrane including at least one raised rim as well as a plurality of evenly spaced radial raised partition ribs connected with the at least one raised rim to form equivalent piston acting zones, wherein each said piston acting zone has an acting zone hole formed therein at a position corresponding to a position of the fastening bore in a respective one of the eccentric roundels; each said pumping piston has a tiered hole and the fastening member extends through the tiered hole of each said pumping piston, through the acting zone hole of each corresponding said piston acting zone in the diaphragm membrane, and into the respective fastening hole in a respective one of the eccentric roundels to secure the diaphragm membrane and each of the pumping pistons to the corresponding eccentric roundels in the eccentric roundel mount; said piston valvular assembly, which covers the diaphragm membrane and is peripherally secured to the diaphragm membrane by sealing engagement, includes a central outlet mount having a central positioning bore and a plurality of equivalent sectors, each of which contains multiple evenly circumferentially-located outlet ports, a T-shaped plastic anti-backflow valve with a central positioning shank, and a plurality of circumferential inlet mounts, each of the plurality of circumferential inlet mounts including multiple evenly circumferentially-located inlet ports and an inverted central piston disk mounted to the respective circumferential inlet mount so that each inverted central piston disk serves as a valve for each corresponding group of multiple evenly circumferentially-located inlet ports, wherein the central positioning shank of the T-shaped plastic anti-back flow valve mates with the central positioning bore of the central outlet mount such that said multiple circumferentially-located outlet ports in the central outlet mount communicate with the plurality of circumferential inlet mounts, and a hermetic preliminary water-pressurizing chamber is formed in each circumferential inlet mount and corresponding piston acting zone in the diaphragm membrane upon the diaphragm membrane being peripherally secured to the piston valvular assembly such that one end of each of the preliminary water-pressuring chamber is communicable with each corresponding one of said evenly circumferentially-located inlet ports; and said pump head cover, which covers on the pump head body to encompass the piston valvular assembly, pumping piston and diaphragm membrane therein, includes a water inlet orifice, and a water outlet orifice, said pump head cover being hermetically attached to the assembly of diaphragm membrane and piston valvular assembly, wherein a high-pressured water chamber is configured between a cavity formed by an inside wall of an annular rib ring and the central outlet mount of the piston valvular assembly. 3. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein: said at least one first vibration-reducing positioning structure includes at least one of a basic curved groove, curved slot, curved set of openings, curved protrusion, and curved set of protrusions, and is further circumferentially-disposed around an upper side of each operating hole in the pump head body; and said second at least one second vibration-reducing positioning structure includes one of a basic curved protrusion, curved set of protrusions, curved groove, curved slot, and curved set of openings, and is further circumferentially-disposed around a concentric annular positioning protrusion at a bottom side of the diaphragm membrane at a position corresponding to a position of each first vibration-reducing positioning structure in the pump head body so that each second vibration-reducing positioning structure at the bottom side of the diaphragm membrane is mated with each corresponding first vibration-reducing positioning structure at the upper side of the pump head body upon assembly of the pump head body and the diaphragm membrane, whereby the moment arm generated by movement of the diaphragm membrane in response to up-and-down movement of the pistons extends between the first vibration-reducing positioning structures and a periphery of the second vibration-reducing positioning structures to thereby reduce vibrations resulting from said movement of the diaphragm. 4. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein each said first vibration-reducing positioning structure includes at least one curved groove or slot in the pump head body and each said second vibration-reducing positioning structure includes at least one curved protrusion extending from the diaphragm membrane. 5. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein each said first vibration-reducing positioning structure includes at least one curved protrusion extending from the pump head body and each said second vibration-reducing positioning structure includes at least one curved groove or slot in the diaphragm membrane. 6. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein each said first vibration-reducing positioning structure includes a pair of curved grooves in the pump head body and each said second vibration-reducing positioning structure includes a pair of curved protrusions extending from the diaphragm membrane. 7. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein each said first vibration-reducing positioning structure includes a pair of curved protrusions extending from the pump head body and each said second vibration-reducing positioning structure includes a pair of curved grooves in the diaphragm membrane. 8. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein each said first vibration-reducing positioning structure is a curved set of openings in the pump head body and each said second vibration-reducing positioning structure is a curved set of protrusions extending from the diaphragm membrane. 9. The compressing diaphragm pump with multiple effects as claimed in claim 8, wherein said curved set of openings are round or square openings. 10. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein each said first vibration-reducing positioning structure is a curved set of protrusions extending from the pump head body and each said second vibration-reducing positioning structure is a curved set of openings in the diaphragm membrane. 11. The compressing diaphragm pump with multiple effects as claimed in claim 10, wherein said curved set of protrusions are round or square protrusions. 12. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein each said first vibration-reducing positioning structure includes at least one indented ring in the pump head body and each said second vibration-reducing positioning structure includes at least one annular protrusion projecting from the diaphragm membrane. 13. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein each said first vibration-reducing positioning structure includes a pair of indented rings in the pump head body and each said second vibration-reducing positioning structure includes a pair of ring structures projecting from the diaphragm membrane. 14. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein each said first vibration-reducing positioning structure includes a pair of ring structures projecting from the pump head body and each said second vibration-reducing positioning structure includes a pair of indented rings in the diaphragm membrane. 15. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein each said eccentric roundel is a cylindrical eccentric roundel. 16. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein each said eccentric roundel is an inverted frustoconical eccentric roundel, and wherein a largest diameter of the inverted frustoconical eccentric roundel is smaller than an inner diameter of a corresponding one of said operating holes in the pump head body. 17. The compressing diaphragm pump with multiple effects as claimed in claim 16, wherein said inverted frustoconical eccentric roundels each includes a mounting portion fixed to the roundel mount and a separable inverted frustoconical roundel yoke mounted on the roundel mount to form a two-layered eccentric roundel structure. 18. The compressing diaphragm pump with multiple effects as claimed in claim 17, wherein the mounting portion of each of the inverted frustoconical eccentric roundels is integrally fabricated with the roundel mount, and the inverted frustoconical roundel yokes are separately fabricated. 19. The compressing diaphragm pump with multiple effects as claimed in claim 17, wherein the mounting portion of each of the inverted frustoconical eccentric roundels includes a base with an inwardly-facing positioning surface and a cylinder with a central female-threaded bore extending upwardly from the base, and wherein each of the inverted frustoconical yokes includes an upper bore, a middle bore, and a lower bore, wherein a diameter of the middle bore is approximately equal to a diameter of the mounting portion cylinder, a diameter of the upper bore is larger than the diameter of the mounting portion cylinder, and a diameter of the lower bore is approximately equal to a diameter of the mounting portion base, said lower bore being fitted over the base, said middle bore being sleeved over the cylinder, and said annular positioning groove being defined by a space between said cylinder and an inner wall of said upper bore. 20. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein a respective number of said eccentric roundels, said operating holes in said pump head body, said piston acting zones, and said pumping pistons is three. 21. The compressing diaphragm pump with multiple effects as claimed in claim 2, wherein said at least one raised rim of said diaphragm membrane is an inner raised rim, said diaphragm membrane includes a parallel outer raised rim, said piston valvular assembly includes a downwardly extending raised rim, and said downwardly extending raised rim of said piston valvular assembly extends between said inner and outer raised rims of said diaphragm membrane to provide a peripheral seal when said diaphragm membrane is peripherally secured to said piston valvular assembly. 22. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein said motor is a brushed motor. 23. The compressing diaphragm pump with multiple effects as claimed in claim 1, wherein said motor is a brushless motor.
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