Vibration-reducing structure for four-compression-chamber diaphragm pump

Abstract

A vibration-reducing structure for compressing diaphragm pump features a pump head body and a diaphragm membrane. The pump head body includes four operating holes, a first curved vibration-reducing positioning structure circumferentially disposed around the upper side of each operating hole, and or a linked four-curve positioning structure that collectively extends around all of the operating holes. The diaphragm membrane includes four equivalent piston acting zones and second curved vibration-reducing position structures situated at positions corresponding to the positions of the first curved vibration-reducing positioning structures. The first positioning structures in the pump head body, which may be grooves, slots, perforations, or protrusions, mate with the corresponding second positioning structures in the diaphragm membrane to reduce the moment arm generated during pumping by movement of the diaphragm membrane, which may be protrusions, grooves, slots, or perforations, thereby generating less torque to decrease the strength of vibrations and vibration noise.

Description

[0001]This application claims the benefit of provisional U.S. Patent Application No. 61 / 000,622, filed May 20, 2014, and incorporated herein by reference.FIELD OF THE PRESENT INVENTION[0002]The present invention relates to a vibration-reducing structure for a four-compression-chamber diaphragm pump, and particularly to a structure that can reduce the vibration strength of the pump so that the annoying noise incurred by the consonant vibration with the housing of an RO purification system is eliminated when the vibration-reducing structure is installed on the water supplying apparatus in either a house, recreational vehicle, or mobile home.BACKGROUND OF THE INVENTION[0003]Conventional compressing diaphragm pumps of the type used with a RO (Reverse Osmosis) purifier or RO water purification system, and which are popularly installed on the water supplying apparatus of houses, recreational vehicles or mobile homes, come in various types. Other than the specific type disclosed in U.S. Pa...

AI Technical Summary

Benefits of technology

[0024]An objective of the present invention is to provide a vibration-reducing structure for four-compressing-chamber diaphragm pump features of a pump head body and a diaphragm membrane, in which the pump head body includes four operating holes and at least one basic curved groove, slot, or perforated segment, or a curved protrusion or set of protrusions, circumferentially disposed around at least a portion of the upper side of each operating hole, and in which the diaphragm membrane includes four equivalent piston acting zones each of which has an acting zone hole, an annular positioning protrusion for each acting zone hole, and at least one basic curved protrusion or set of protrusions, or a groove, slot, or perforated segment, at least partially circumferentially disposed around each concentric annular positioning protrusion at a position corresponding to the position of each mating basic curved groove, slot, perforated segment, protrusions, or sets of protrusions in the pump head body, so that the four basic curved protrusions, sets of protrusions, grooves, slots, or perforated segments are completely inserted into or received by the corresponding four basic curved grooves, slots, perforated segments, protrusions, or sets of protrusions in the pump head body with a short length of moment arm to generate less torque, the torque being obtained by multip

Problems solved by technology

Referring to FIGS. 12 through 13, a serious vibration-related drawback has long existed in the above-described conventional four-compression-chamber diaphragm pump.

However, the practical vibration suppressing efficiency of the foregoing cushion base 100 with wing plates 101 and rubber shock absorber 102 only affects the primary direct vibration, while reducing overall vibration only to a limited degree because the primary direct vibration causes a secondary vibration to occur as a result of resonant shaking of the housing C. The resonant shaking causes the overall vibration noise of the housing C of the reverse osmosis purification unit to become stronger.

In addition to the drawback of increasing overall vibration noise of the housing C, a further drawback occurs in that the water pipe P connected to the water outlet orifice 22 of the pump head cover 20 will synchronously shake in resonance with the primary vibration described above (

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