DE102015000209A1 - Vibration reducing structure for compressive membrane pump - Google Patents

Vibration reducing structure for compressive membrane pump

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Publication number
DE102015000209A1
DE102015000209A1 DE102015000209.0A DE102015000209A DE102015000209A1 DE 102015000209 A1 DE102015000209 A1 DE 102015000209A1 DE 102015000209 A DE102015000209 A DE 102015000209A DE 102015000209 A1 DE102015000209 A1 DE 102015000209A1
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DE
Germany
Prior art keywords
vibration
diaphragm
reducing
head body
pump head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE102015000209.0A
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German (de)
Inventor
Ying Lin Cai
Chao Fou Hsu
Original Assignee
Ying Lin Cai
Chao-Fou Hsu
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Filing date
Publication date
Priority to CN201410019335.8 priority Critical
Priority to CN201410019335 priority
Application filed by Ying Lin Cai, Chao-Fou Hsu filed Critical Ying Lin Cai
Publication of DE102015000209A1 publication Critical patent/DE102015000209A1/en
Application status is Ceased legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/02Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/04Pumps having electric drive
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009Special features
    • F04B43/0045Special features with a number of independent working chambers which are actuated successively by one mechanism
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009Special features
    • F04B43/0054Special features particularities of the flexible members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/02Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/025Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
    • F04B43/026Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/001Noise damping

Abstract

A vibration reducing structure for a compressing diaphragm pump has a pump head body and a diaphragm. The pump head body includes three service holes and a first curved vibration reducing positioning structure disposed circumferentially around the top of each service hole. The diaphragm includes three equivalent piston actuating zones and second curved vibration reducing positioning structures located 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 membrane to reduce the moment arm created during pumping by movement of the membrane, the protrusions, grooves, Slits or perforations, whereby a lower torque is generated to reduce the strength of vibration and vibration noise.

Description

  • FIELD OF THE PRESENT INVENTION
  • The present invention relates to a vibration-reducing structure for a compressing diaphragm pump used in an RO (reverse osmosis) cleaning system, and more particularly, to a structure that can reduce the vibration intensity of the pump so that disturbing noises caused by congruent vibration the housing of the RO cleaning system can be eliminated when the structure is installed on the housing of the RO cleaning system.
  • BACKGROUND OF THE INVENTION
  • Conventional compressing diaphragm pumps, which are used exclusively with the RO (reverse osmosis) purifier or RO water purifying system, are known in U.S. Patent No. 4,396,357 . 4610605 . 5476367 . 5571000 . 5615597 . 5626464 . 5649812 . 5706715 . 5791882 . 5816133 . 6048183 . 6089838 . 6299414 . 6604909 . 6840745 and 6892624 disclosed. The conventional compressing diaphragm pump as in 1 to 9 essentially comprises a brush or brushless motor 10 with an output shaft 11 , an upper motor housing 30 , a swash plate 40 with an integrated protruding camshaft, an eccentric disc holder 50 , a pump head body 60 , a membrane 70 , three pump pistons 80 , a piston valve assembly 90 and a pump head cover 20 ,
  • The upper engine chassis 30 contains a warehouse 31 through which there is an output shaft 11 of the motor 10 extends. The upper engine chassis 30 Also includes an upper annular ribbed ring 32 with several mounting holes 33 that are uniform and circumferential in one edge of the upper annular rib ring 32 are arranged.
  • The swash plate 40 contains a shaft coupling hole 41 through which the corresponding engine output shaft 11 of the motor 10 extends.
  • The eccentric disc holder 50 contains a central warehouse 51 at its bottom for receiving the corresponding integrated projecting camshaft of the swash plate 40 , where three eccentric discs 52 evenly and around the circumference are arranged on it. Each eccentric disc 52 has a screw threaded hole 54 and an annular positioning groove 55 lying on their horizontally flush top 53 are formed.
  • The pump head body 60 covers the upper annular rib ring 32 the upper engine chassis 30 so that the swash plate 40 with the integrated protruding camshaft and the eccentric disc holder 50 contained therein, and contains three service holes 61 which are arranged uniformly and circumferentially therein. Every operating hole 61 has an inner diameter slightly larger than the outer diameter of the eccentric disc 52 in the eccentric disk holder 50 is, for receiving each corresponding eccentric disc 52 , a lower annular flange 62 formed below to mate with the corresponding upper annular rib ring 32 the upper engine chassis 30 and several mounting holes 63 evenly around a circumference of the pump head body 60 are arranged.
  • The membrane 70 made of a semi-rigid elastic material formed by extrusion and placed on the pump head body 60 is placed, contains a pair of an outer raised edge 71 and a parallel inner raised edge 72 as well as three equally spaced, radial, raised barrier ribs 73 such that each end of the respective radial raised barrier ribs 73 with the raised sealing edge 71 connected is. The membrane 70 also contains three equivalent piston actuation zones 74 passing through the radial, raised barrier ribs 73 be formed and separated, each piston actuation zone 74 an actuation zone hole 75 having therein in correspondence with respective screw tapped holes 54 the eccentric disc holder 50 is formed, and an annular positioning projection 76 for each actuation zone hole 75 is at the bottom side of the membrane 70 formed (as in 7 and 8th is shown).
  • The pump pistons 80 are each in each of the corresponding piston actuation zones 74 the membrane 70 arranged. Every pump piston 80 has a stepped, stepped hole 81 , After the annular positioning projections 76 in the membrane 70 in corresponding annular positioning grooves 55 in the eccentric disc 52 the eccentric disc holder 50 are used, respective mounting screws 1 through the stepped hole 81 every pump piston 80 and the actuation zone hole 74 each corresponding piston actuation zone 74 in the membrane 70 used so that the membrane 70 and three pump pistons 80 safely into the screw threaded holes 54 the corresponding three eccentric discs 52 in the eccentric disk holder 50 can be screwed (as can be seen in the enlarged view, the in 9 is shown).
  • The piston valve arrangement 90 that suitably the membrane 70 covered, contains a downwardly extending, raised edge 91 for insertion between the outer raised edge 71 and the inner raised edge 72 in the membrane 70 , a central round outlet bracket 92 with a central positioning hole 93 with three equivalent sectors, each of which has a plurality of evenly spaced outlet ports 95 contains a T-shaped plastic anti-return valve 94 with a central positioning shaft and three circumferentially adjacent inlet brackets 96 each of which has a plurality of equally circumferentially-disposed inlet openings 97 or an inverted central piston disc 98 contains, so every piston disc 98 as a valve for each corresponding group of multiple inlet openings 97 serves, wherein the central positioning shaft of the plastic anti-return valve 94 with the central positioning hole 93 the central outlet bracket 92 matches, leaving multiple outlet openings 95 in the central round outlet bracket 92 with the three inlet brackets 96 and a hermetically sealed preparatory water pressurization chamber 26 will be in every inlet bracket 96 and corresponding piston actuation zone 74 in the membrane 70 at the onset of the downwardly extending, raised edge 91 between the outer raised edge 71 and the inner raised edge 72 in the membrane 70 formed so that one end of each preparatory Wasserdruckbeaufschlagungskammer 26 with each of the corresponding inlet openings 97 communicates (as an enlarged view in 9 shown).
  • The pump head cover 20 containing the pump head body 60 covered to the piston valve assembly 90 , the pump piston 80 and the membrane 70 to include in it contains a water inlet opening 21 , a water outlet 22 and several mounting holes 23 , A graduated edge 24 and an annular rib ring 25 are in the lower inside of the pump head cover 20 arranged so that the outer edge for the arrangement of membrane 70 and piston valve assembly 90 hermetically on the stepped edge 24 can be attached (as in the enlarged view of 9 shown). A high pressure water chamber 28 is between the cavity passing through the inner wall of the annular rib ring 25 is formed, and the central outlet bracket 92 the piston valve assembly 90 designed by placing the bottom of the annular ribbed ring 25 on the edge of the central outlet bracket 92 is pressed (as in 9 shown).
  • By fixing each screw 2 through appropriate mounting holes 23 the pump head cover 20 and any corresponding mounting hole 63 in the pump head body 60 is guided and then a mother 3 on each fixing screw 2 is set to the pump head cover 20 and the pump head body 60 safely on the upper engine chassis 30 through each corresponding mounting hole 33 in the upper engine chassis 30 To screw, the entire assembly of the conventional compressing diaphragm pump is ready (as in 1 and 9 shown).
  • The 10 and 11 FIG. 11 are illustrative figures illustrating the practical mode of operation of the conventional compressing diaphragm pump of FIG 1 to 9 demonstrate.
  • First, if the engine 10 is turned on, the swash plate 40 from the engine output shaft 11 driven to rotate, leaving three eccentric discs 52 on the eccentric disc holder 50 in turn and constantly move in an up and down reversal stroke.
  • Second, the three pump pistons 80 and three piston actuation zones 74 in the membrane 70 in the meantime, in turn, by the up-and-down reversing stroke of the three eccentric discs 72 driven, so that they move in an upward and downward shift.
  • Third, if the eccentric disc 52 moved in a downward stroke, which causes the pump piston 80 and the piston actuation zone 74 Move down, the piston disc 98 in the piston valve assembly 90 pushed into an open state, so that tap water W in the preparatory pressurization chamber 26 over the water inlet opening 21 in the pump head cover 20 and inlet openings 97 in the piston valve assembly 70 can flow (as indicated by the arrowhead in the enlarged view of 10 displayed, which extends from W).
  • Fourth, if the eccentric disc 52 moved in an upward stroke, causing the pump piston 80 and the piston valve assembly 74 to be moved down, the piston disc 96 in the piston valve assembly 90 pulled to a closed state to the tap water W in the preliminary pressurization chamber 26 to compress and increase the water pressure therein to a range of 80 psi to 100 psi. The resulting pressurized water Wp causes the plastic anti-return valve 94 in the piston valve assembly 90 is pushed into an open state.
  • Fifth, if the plastic anti-reflux valve 94 in the piston valve assembly 90 is pushed into an open state, the pressurized water Wp in the preparatory Wasserdruckbeaufschlagungskammer 26 over a group of outlet openings 95 for the corresponding sector in the central outlet bracket 92 in a high-pressure water chamber 27 headed and then out the water outlet opening 22 in the pump head cover 20 expelled (as in 11 is shown and indicated by arrowhead WP).
  • Finally, an orderly repeated action for each group of outlet openings 95 for the three sectors in the central outlet bracket 92 in that the pressurized water Wp is constantly discharged from the conventional compressing diaphragm pump so as to be further RO filtered by the RO cartridge, so that the final filtered pressurized water Wp can be used in a reverse osmosis water purification system.
  • With reference to 12 to 14 has long been a serious drawback caused by vibrations in the above-described conventional compressing diaphragm pump. As previously described, when the engine 10 is turned on, the swash plate 40 from the engine output shaft 11 driven to rotate, leaving three eccentric discs 52 on the eccentric disc holder 50 moving constantly and sequentially in an up and down reversing stroke, and in the meantime, three pumping pistons 80 and three piston actuation zones 74 in the membrane 70 in turn, by the up-and-down reversing stroke of the three eccentric discs 72 be driven so that they move in an upward and downward shift, so that an equivalent force F constant on the three piston actuation zones 74 acting with a length of a moment arm L1, that of the outer raised edge 71 to the rank of the annular positioning projection 76 is measured (as in 13 shown). Thereby, a resultant torque is generated by the acting force F multiplied by the length of the moment arm L1, as represented by the formula "torque = acting force F × length of the moment arm L1". The resulting torque causes the entire conventional compressing diaphragm pump to vibrate directly. With a high speed of the engine output shaft 11 in the engine 10 Up to a range of 700 to 1200 rpm, the vibration intensity can be increased by alternating actuation of the three eccentric discs 52 caused to reach a persistently unacceptable state.
  • To treat the direct vibration of the conventional compressing diaphragm pump, as in 14 is always an attenuation base 100 with two wing plates 101 intended as additional support. Each wing plate 101 is also with a rubber shock absorber 102 coated for amplification of vibration suppression. When installing the conventional compressing diaphragm pump, the damping base 100 by suitable fastening screws 103 and corresponding nuts 104 firmly screwed to the housing C of the reverse osmosis purification unit. The practical effectiveness for suppressing vibration when using the foregoing cushioning base 100 with wing plates 101 and rubber bumpers 102 however, only treats the primary direct vibration while reducing the total vibration only to a limited degree because the primary direct vibration causes secondary vibration due to the occurrence of resonant shaking of the housing C. This resonant vibration causes all the vibration noise of the housing C of the reverse osmosis purifying unit to become stronger.
  • In addition to the disadvantage of increasing the overall vibration noise of the housing C, another disadvantage occurs because the water pipe P communicating with the water outlet opening 22 the pump head cover 20 synchronously in resonance with the primary vibration shakes (indicated by the hypothetical line in 14 is shown). This synchronous shaking of the water pipe P leads to further disadvantages, since other remaining parts of the conventional compressing diaphragm pump are caused to shake simultaneously. As a result, after a certain period of time, water leakage occurs in the conventional compressing diaphragm pump due to the gradual loosening of communication between the water pipe P and the water outlet port 22 as well as a gradual relaxation of the fit between other parts affected by the shaking.
  • The additional disadvantages of overall resonant shaking and water leakage in the conventional compressing diaphragm pump can not be solved by conventional treatment of the foregoing primary device disadvantages. It has become an urgent and critical issue how to solve all the drawbacks associated with the operating vibration of the compressing diaphragm pump.
  • BRIEF SUMMARY OF THE INVENTION
  • It is an object to provide a vibration reducing structure for a compressing diaphragm pump having a pump head body and a diaphragm, wherein the pump head body includes three service holes and at least one curved base groove, a slot or perforated segment or a curved projection or set of projections arranged circumferentially at least a portion of the upper side of each service hole, and wherein the diaphragm includes three equivalent piston actuation zones, each of which includes an actuation zone hole, an annular positioning protrusion for each actuation zone hole, and at least one curved base protrusion or set of protrusions Groove, a slot or a perforated segment arranged around at least partially the circumference of each concentric annular positioning projection at a position corresponding to the position of each mating curved base groove in the pump head body, so that the three curved base projections completely in the corresponding three curved base grooves, slots or perforated segments are used, with a short length of momentary arm to produce a torque that causes less adverse vibration, wherein the torque is obtained by multiplying the length of the moment arm with a constant acting force. With less torque, the vibration intensity of the compressing diaphragm pump is significantly reduced.
  • Another object is to provide a vibration reducing structure for a compressing diaphragm pump having a pump head body having at least three curved grooves, slots or perforated segments or curved projections, and a membrane having three curved base projections or curved grooves, slots or perforated segments such that the curved base projections are fully inserted into corresponding three curved base grooves, slots or perforated segments, with a short length of momentary arm to produce a torque causing less adverse vibration, the torque being multiplied by multiplying the length of the moment arm by a constant acting one Power is obtained. With less torque, the vibration intensity of the compressing diaphragm pump is significantly reduced. When the present invention is installed on the housing of the reverse osmosis purifying unit supported by a conventional damping base with rubber shock absorbers, the disturbing noise caused by resonant shaking in the conventional compressing diaphragm pump can be completely eliminated.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • 1 Figure 3 is a perspective assembled view of a conventional compressing diaphragm pump.
  • 2 Figure 11 is a perspective exploded view of a conventional compressing diaphragm pump.
  • 3 FIG. 15 is a perspective view of a pump head body for the conventional compressing diaphragm pump. FIG.
  • 4 is a cross-sectional view along the section line 4-4 of the preceding 3 ,
  • 5 Fig. 10 is a plan view of a pump head body for the conventional compressing diaphragm pump.
  • 6 is a perspective view of a membrane for the conventional compressing diaphragm pump.
  • 7 FIG. 10 is a cross-sectional view taken along section line 7-7 of the previous one. FIG 6 ,
  • 8th is a bottom view of the membrane for the conventional compressing diaphragm pump.
  • 9 Fig. 12 is a cross-sectional view taken along section line 9-9 of the previous one 1 ,
  • 10 is the first illustrative operational view of the conventional compressing diaphragm pump.
  • 11 FIG. 14 is the second illustrative operational view of the conventional compressing diaphragm pump. FIG.
  • 12 Figure 3 is the third illustrative operational view of the conventional compressing diaphragm pump with a partially enlarged view of a circled body.
  • 13 Fig. 16 is a partially enlarged view of the circled part "a" in the enlarged view of the preceding one 12 ,
  • 14 Fig. 12 is a schematic side view showing a conventional compressing diaphragm pump installed on a support base in a reverse osmosis purification system.
  • 14 (a) FIG. 12 is a schematic end view of the conventional compressing diaphragm pump installed on a support base, as in FIG 14 shown.
  • 15 FIG. 12 is a perspective exploded view of the first exemplary embodiment of the present invention. FIG.
  • 16 FIG. 15 is a perspective view of a pump head body in the first exemplary embodiment of the present invention. FIG.
  • 17 FIG. 12 is a cross-sectional view taken along section line 17-17 of the previous one. FIG 16 ,
  • 18 FIG. 10 is a plan view of the pump head body in the first exemplary embodiment of the present invention. FIG.
  • 19 FIG. 12 is a perspective view of a diaphragm in the first exemplary embodiment of the present invention. FIG.
  • 20 FIG. 12 is a cross-sectional view taken along section line 20-20 of the previous one. FIG 19 ,
  • 21 FIG. 10 is a bottom view of the diaphragm in the first exemplary embodiment of the present invention. FIG.
  • 22 FIG. 12 is an assembled cross-sectional view of the first exemplary embodiment of the present invention. FIG.
  • 23 FIG. 4 is an illustrative operational view for the first exemplary embodiment of the present invention with a partially enlarged view of the circled body. FIG.
  • 24 Fig. 16 is a partially enlarged view of the circled part "a" in the enlarged view of the preceding one 23 ,
  • 25 FIG. 12 is a perspective view of another pump head body in the first exemplary embodiment of the present invention. FIG.
  • 26 FIG. 12 is a cross-sectional view taken along section line 26-26 of the previous one. FIG 25 ,
  • 27 FIG. 12 is a cross-sectional view of another pump head body and a separate diaphragm in the first exemplary embodiment of the present invention. FIG.
  • 28 is a cross-sectional view of a combination of the pump head body and the membrane of 27 ,
  • 29 FIG. 12 is a perspective view of a pump head body in the second exemplary embodiment of the present invention. FIG.
  • 30 FIG. 12 is a cross-sectional view taken along section line 30-30 of the previous one. FIG 29 ,
  • 31 FIG. 10 is a plan view of the pump head body in the second exemplary embodiment of the present invention. FIG.
  • 32 FIG. 12 is a perspective view of a diaphragm in the second exemplary embodiment of the present invention. FIG.
  • 33 FIG. 12 is a cross-sectional view taken along section line 33--33 of the previous one. FIG 32 ,
  • 34 FIG. 10 is a bottom view of a diaphragm in the second exemplary embodiment of the present invention. FIG.
  • 35 FIG. 12 is a cross-sectional view of a combination of the pump head body and the diaphragm in the second exemplary embodiment of the present invention. FIG.
  • 36 FIG. 12 is a perspective view of another pump head body in the second exemplary embodiment of the present invention. FIG.
  • 37 Fig. 12 is a cross-sectional view taken along section line 37-37 of the previous one 36 ,
  • 38 FIG. 12 is a cross-sectional view of another pump head body and a separate diaphragm in the second exemplary embodiment of the present invention. FIG.
  • 39 is a cross-sectional view of a combination of the pump head body and the membrane of 38 ,
  • 40 FIG. 15 is a perspective view of a pump head body in the third exemplary embodiment of the present invention. FIG.
  • 41 Fig. 12 is a cross-sectional view taken along section line 41-41 of the preceding 40 ,
  • 42 FIG. 10 is a plan view of a pump head body in the third exemplary embodiment of the present invention. FIG.
  • 43 FIG. 12 is a perspective view of a diaphragm in the third exemplary embodiment of the present invention. FIG.
  • 44 Fig. 12 is a cross-sectional view taken along section line 44-44 of the foregoing 43 ,
  • 45 FIG. 10 is a bottom view of a diaphragm in the third exemplary embodiment of the present invention. FIG.
  • 46 FIG. 12 is a cross-sectional view of a combination of the pump head body and the diaphragm in the third exemplary embodiment of the present invention. FIG.
  • 47 FIG. 14 is a perspective view of another pump head body in the third exemplary embodiment of the present invention. FIG.
  • 48 Fig. 12 is a cross-sectional view taken along section line 48-48 of the preceding 47 ,
  • 49 FIG. 12 is a cross-sectional view of another pump head body and a separate diaphragm in the third exemplary embodiment of the present invention. FIG.
  • 50 is a cross-sectional view of a combination of the pump head body and the membrane of 49 ,
  • 51 FIG. 15 is a perspective view of the pump head body in the fourth exemplary embodiment of the present invention. FIG.
  • 52 FIG. 12 is a cross-sectional view taken along section line 52--52 of the previous one. FIG 51 ,
  • 53 FIG. 10 is a plan view of the pump head body in the fourth exemplary embodiment of the present invention. FIG.
  • 54 FIG. 15 is a perspective view of the diaphragm in the fourth exemplary embodiment of the present invention. FIG.
  • 55 FIG. 12 is a cross-sectional view taken along section line 55-55 of the previous one. FIG 54 ,
  • 56 FIG. 10 is a bottom view of a diaphragm in the fourth exemplary embodiment of the present invention. FIG.
  • 57 FIG. 12 is a cross-sectional view of a combination of the pump head body and the diaphragm in the fourth exemplary embodiment of the present invention. FIG.
  • 58 FIG. 12 is a perspective view of another pump head body in the fourth exemplary embodiment of the present invention. FIG.
  • 59 is a cross-sectional view taken along section line 59-59 of the preceding 58 ,
  • 60 FIG. 12 is a cross-sectional view of another pump head body and a separate diaphragm in the fourth exemplary embodiment of the present invention. FIG.
  • 61 is a cross-sectional view of a combination of the pump head body and the membrane of 60 ,
  • 62 FIG. 15 is a perspective view of the pump head body in the fifth exemplary embodiment of the present invention. FIG.
  • 63 is a cross-sectional view taken along section line 63-63 of the preceding 62 ,
  • 64 FIG. 10 is a plan view of the pump head body in the fifth exemplary embodiment of the present invention. FIG.
  • 65 FIG. 15 is a perspective view of the diaphragm in the fifth exemplary embodiment of the present invention. FIG.
  • 66 Fig. 12 is a cross-sectional view taken along section line 66-66 of the foregoing 65 ,
  • 67 Fig. 10 is a bottom view of a diaphragm in the fifth exemplary embodiment of the present invention.
  • 68 FIG. 12 is a cross-sectional view of a combination of the pump head body and the diaphragm in the fifth exemplary embodiment of the present invention. FIG.
  • 69 FIG. 12 is a perspective view of another pump head body in the fifth exemplary embodiment of the present invention. FIG.
  • 70 FIG. 12 is a cross-sectional view taken along section line 70-70 of the previous one. FIG 69 ,
  • 71 FIG. 12 is a cross-sectional view of another pump head body and a separate diaphragm in the fifth exemplary embodiment of the present invention. FIG.
  • 72 is a cross-sectional view of a combination of the pump head body and the membrane of 71 ,
  • 73 FIG. 15 is a perspective view of the pump head body in the sixth exemplary embodiment of the present invention. FIG.
  • 74 Fig. 12 is a cross-sectional view taken along section line 74-74 of the previous one 73 ,
  • 75 FIG. 10 is a plan view of the pump head body in the sixth exemplary embodiment of the present invention. FIG.
  • 76 FIG. 14 is a perspective view of the diaphragm in the sixth exemplary embodiment of the present invention. FIG.
  • 77 Fig. 12 is a cross-sectional view taken along section line 77-77 of the preceding 76 ,
  • 78 is a bottom view of one Membrane in the sixth exemplary embodiment of the present invention.
  • 79 FIG. 12 is a cross-sectional view of a combination of the pump head body and the diaphragm in the sixth exemplary embodiment of the present invention. FIG.
  • 80 FIG. 15 is a perspective view of another pump head body in the sixth exemplary embodiment of the present invention. FIG.
  • 81 Fig. 12 is a cross-sectional view taken along section line 81-81 of the preceding 80 ,
  • 82 FIG. 12 is a cross-sectional view of another pump head body and a separate diaphragm in the sixth exemplary embodiment of the present invention. FIG.
  • 83 is a cross-sectional view of a combination of the pump head body and the membrane of 82 ,
  • 84 FIG. 15 is a perspective view of the pump head body in the seventh exemplary embodiment of the present invention. FIG.
  • 85 FIG. 10 is a bottom view of a diaphragm in the seventh exemplary embodiment of the present invention. FIG.
  • 86 FIG. 12 is a cross-sectional view of a combination of the pump head body and the diaphragm in the seventh exemplary embodiment of the present invention. FIG.
  • 87 FIG. 12 is a perspective view of another pump head body in the seventh exemplary embodiment of the present invention. FIG.
  • 88 FIG. 12 is a cross-sectional view taken along section line 88--88 of the previous one. FIG 87 ,
  • 89 FIG. 12 is a cross-sectional view of another pump head body and a separate diaphragm in the seventh exemplary embodiment of the present invention. FIG.
  • 90 is a cross-sectional view of a combination of the pump head body and the membrane of 89 ,
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • 15 to 22 FIG. 12 are illustrative figures of a first exemplary embodiment of a vibration reducing structure for a compressing diaphragm pump. FIG.
  • A curved base groove 65 is about the circumference of a part of the upper side of each working hole 61 in the pump head body 60 arranged while a curved base projection 77 around the periphery of a part of each concentric annular positioning projection 76 at the bottom side of the membrane 70 is arranged so that positions of the curved base groove 65 and the curved protrusion 77 correspond to each other, resulting in the curved projection 77 in the curved base groove 65 extend and thus can be matched with this.
  • Each of the curved base projections 77 at the bottom side of the membrane 70 becomes when assembling the pump head body 60 and the membrane 70 completely in each of the corresponding curved base grooves 65 on the upper side of the pump head body 60 used (as in 22 and the associated enlarged view), with the result that a moment arm L2 of short length protrudes from the curved base 77 to the edge portion of the annular positioning projection 76 in the membrane 70 is obtained in the operation of the present invention (as in 24 shown).
  • It will open 23 . 24 . 13 . 14 and 14 (a) 4, which are illustrative figures for the practical operation result in the first exemplary embodiment of the vibration-reducing structure for a compressing diaphragm pump of the present invention.
  • In comparison with the operation of the conventional compressing diaphragm pump, the length of the moment arm L1 is from the outer raised edge 71 to the edge portion of the annular protruding positioning block 76 in the membrane 70 in the conventional compressing diaphragm pump in 13 and 24 and the length of the moment arm L2 from the curved base projections 77 to the edge portion of the annular protruding positioning block 76 in the membrane 70 obtained in the operation of the first exemplary embodiment is shown in FIG 24 shown.
  • The illustration of the foregoing comparative result shows that the length of the moment arm L2 is shorter than the length of the moment arm L1.
  • While the resultant torque is calculated by the same acting force F multiplied by the length of the moment arm, the resultant torque of the present invention is smaller than that of the conventional compressing diaphragm pump because the length of the moment arm L2 is shorter than the length of the moment arm L1.
  • With the smaller resultant torque of the present invention, the associated vibration intensity is significantly reduced.
  • By practical pilot testing of a sample of the present invention, the result shows that the resulting vibration intensity is only one tenth (10%) of the vibration intensity in the conventional compressing diaphragm pump.
  • When the present invention is installed on the housing C of the reverse osmosis purification unit by a conventional cushioning base with a rubber shock absorber 102 is muted (as in 14 and 14 (a) as shown), the disturbing noise from the resonant vibration that occurs in the conventional compressing diaphragm pump can be completely eliminated.
  • As in 25 and 26 In the first exemplary embodiment, each curved base groove may be illustrated 65 of the pump head body 60 to a curved base slot or a hole 64 be formed, the or by the pump head body 60 extends.
  • As in 27 and 28 In the first exemplary embodiment, each curved base groove may be illustrated in FIG 65 in the pump head body 60 (as in 16 and 17 shown) and each corresponding curved base projection 77 in the membrane 70 (as in 20 and 21 shown) to a curved base projection 651 in the pump head body 60 (as in 27 shown) and a corresponding curved base groove 771 in the membrane 70 (as in 28 shown) without affecting their mated condition.
  • Each curved base projection 651 at the top of the pump head body 60 is when assembling the pump head body 60 and the membrane 70 completely into each corresponding base groove 771 at the bottom side of the membrane 70 used (as in 28 shown), with the result that also a short length of moment arm L3 from the curved base notch 771 to the edge portion of the annular positioning projection 76 in the membrane 70 is obtained in the operation of the present invention (as in 28 and the associated enlarged view), so that the redesigned devices of a pump head body 60 and a membrane 70 also have a significant effect in reducing vibration.
  • It will open 29 to 35 Reference is made to the illustrative figures for the second exemplary embodiment of the vibration-reducing structure for a compressing diaphragm pump of the present invention.
  • A second outer curved groove 66 is also around the circumference of any existing curved base groove 65 in the pump head body 60 formed (as in 29 to 31 shown), while a second outer curved projection 78 further around the circumference of each existing curved base projection 77 in the membrane 70 is disposed at a position corresponding to the position of each mating second outer curved groove 66 in the pump head body 60 corresponds (as in 33 and 34 is shown).
  • Each pair of curved base projection 77 and second outer curved projection 78 at the bottom side of the membrane 70 becomes when assembling the pump head body 60 and the membrane 80 completely into each pair of a corresponding curved base groove 65 and a second outer curved groove 66 at the top of the pump head body 60 used (as in 35 and the associated enlarged view), with the result that a short length of the moment arm L2 from the curved base projection 77 to the edge portion of the annular positioning projection 76 in the membrane 70 is obtained in operation of the present invention (as in 35 and the associated enlarged view).
  • The redesigned devices of pump head body 60 and membrane 70 not only have a significant effect of reducing vibration, but also provide increased resistance in avoiding relative displacement of the pump head body 60 and the diaphragm and in maintaining the length of the moment arm L2, by the force F acting on the eccentric discs 52 acts to resist.
  • As in 36 and 37 In the second exemplary embodiment, each pair of curved base groove may be illustrated 65 and second outer curved groove 66 of the pump head body 60 through a pair of curved base slots or holes 64 and second outer curved slots or holes 67 be replaced.
  • As in 38 and 39 In the second exemplary embodiment, each pair of curved base groove may be illustrated 65 and second outer curved groove 66 in the pump head body 60 (as in 29 to 31 shown) and each corresponding pair of curved positioning projection 77 and second outer curved projection 78 in the membrane 70 (as in 33 and 34 shown) by a pair of a curved base projection 651 and second outer curved projection 661 in the pump head body 60 (as in 28 shown) and a pair of a corresponding curved base groove 771 and a second outer curved groove 781 in the membrane 70 be replaced (as in 38 shown) without affecting their mated condition.
  • Each pair of curved base projection 651 and second outer curved projection 661 at the top of the pump head body 60 becomes during assembly of the pump head body 60 and the membrane 70 completely in each corresponding pair of a curved base groove 771 and a second outer curved groove 781 at the bottom side of the membrane 70 used (as in 39 shown), with the result that also a short length of moment arm L3 from the curved base groove 771 to the edge portion of the annular positioning projection 76 in the membrane 70 is obtained in the operation of the present invention (as in 39 and the associated enlarged view is shown).
  • The redesigned devices of pump head body 60 and membrane 70 not only have a significant effect in reducing vibration, but also provide increased durability by avoiding relative displacement and maintaining the length of the moment arm L2.
  • 40 to 46 FIG. 11 are illustrative figures for the third exemplary embodiment of the vibration reducing structure for a compressing diaphragm pump of the present invention. FIG.
  • A notched base ring 601 is also around the circumference of each existing service hole 61 in the pump head body 60 arranged (as in 40 to 42 shown) while a projecting base ring 701 further around the circumference of each existing annular positioning projection 76 in the membrane 70 is disposed at a position corresponding to a position of each mating notched base ring 601 in the pump head body 60 corresponds (as in 44 and 45 is shown).
  • Each prominent base ring 701 at the bottom side of the membrane 70 becomes when assembling the pump head body 60 and the membrane 70 completely in each corresponding notched base ring 601 in the top of the pump head body 60 used (as in 46 shown), with the result that a short length of the moment arm L2 from the protruding base ring 701 to the edge portion of the annular positioning projection 76 in the membrane 70 is obtained in the operation of the present invention (as in 46 shown).
  • The redesigned devices of pump head body 60 and membrane 70 not only have a significant effect in reducing vibration, but also provide increased resistance by avoiding relative displacement and maintaining the length of the moment arm L2 to the force F acting on the eccentric discs 52 acts to resist.
  • As in 47 and 48 In the third exemplary embodiment, each notched base ring may be illustrated 601 of the pump head body 60 to a perforated base hole 600 be educated.
  • As in 49 and 50 In the third exemplary embodiment, each notched base ring may be illustrated 601 in the pump head body 60 (as in 40 to 42 shown) and each corresponding protruding base ring 701 in the membrane (as in 44 and 45 represented) by a projecting base ring 610 in the pump head body 60 (as in 27 shown) and a corresponding notched base ring 710 in the membrane 70 (as in 50 shown) without affecting their mated condition.
  • Each prominent base ring 610 at the top of the pump head body 60 becomes when assembling the pump head body 60 and the membrane 70 completely in each corresponding notched base ring 710 at the bottom side of the membrane 70 used (as in 50 shown), with the result that also a short length of the moment arm L3 from the notched base ring 710 to the edge portion of the annular positioning projection 76 in the membrane 70 is obtained in the operation of the present invention (as in 50 shown), so that the redesigned devices of pump head body 60 and membrane 70 also have a significant effect of reducing vibration.
  • 51 to 57 FIG. 11 are illustrative figures for the fourth exemplary embodiment of the vibration reducing structure for a compressing diaphragm pump of the present invention.
  • A pair of curved notched segments 602 is also around the circumference of each existing service hole 61 in the pump head body 60 arranged (as in 51 to 53 shown) while a pair of curved protruding segments 702 further around the circumference of each existing annular positioning projection 76 in the membrane 70 is disposed at a position corresponding to a position of each mating curved notched segment 602 in the pump head body 60 corresponds (as in 55 and 56 shown).
  • Each pair of curved protruding segments 702 at the bottom side of the membrane 70 becomes during assembly of the pump head body 60 and the membrane 70 completely into each corresponding pair of curved notched segments 602 at the top of the pump head body 60 used (as in 57 shown), with the result that a moment arm L2 short length of the curved projecting segment 702 to the periphery of the annular positioning projection 76 in the membrane 70 is obtained in the operation of the present invention (as in 57 shown).
  • The redesigned devices of pump head body 60 and membrane 70 not only have a significant effect in reducing vibration, but also provide increased durability by avoiding relative displacement and maintaining the length of the moment arm L2.
  • As in 58 and 59 In the fourth exemplary embodiment, each pair of curved notched segments may be illustrated 602 of the pump head body 60 through a pair of curved perforated segments 611 be replaced.
  • As in 60 and 61 In the fourth exemplary embodiment, each pair of curved notched segments may be illustrated 602 in the pump head body 60 (as in 51 to 53 shown) and each corresponding pair of curved protruding segments 702 in the membrane 70 (as in 55 and 56 shown) by a pair of curved protruding segments 620 in the pump head body 60 (as in 60 shown) and a pair of corresponding curved notched segments 720 in the membrane 70 (as in 61 shown) without affecting their mated condition.
  • Each pair of curved protruding segments 620 at the top of the pump head body 60 becomes during assembly of the pump head body 60 and the membrane 70 completely into each pair of corresponding curved notched segments 720 at the bottom side of the membrane 70 used (as in 61 shown), with the result that also a moment arm L3 short length of the curved notched segment 720 to the edge portion of the annular positioning projection 76 in the membrane 70 is obtained in the operation of the present invention (as in 61 shown), so that the redesigned devices of pump head body 60 and membrane 70 also have a significant effect of reducing vibration.
  • 62 to 68 FIG. 11 are illustrative figures for the fifth exemplary embodiment of the vibration reducing structure for a compressing diaphragm pump of the present invention.
  • A group of round notches 603 is also around the circumference of each existing service hole 61 in the pump head body 60 arranged (as in 62 to 64 shown), while a group of round protrusions 703 further around the circumference of each existing annular positioning projection 76 in the membrane 70 is disposed at a position corresponding to a position corresponding to the position of each group of matching round notches 603 in the pump head body 60 corresponds (as in 66 and 67 shown).
  • Each group of round protrusions 703 at the bottom side of the membrane 70 becomes during assembly of the pump head body 60 and the membrane 70 completely into each corresponding group of round notches 603 at the top of the pump head body 60 used (as in 68 shown), with the result that a moment arm L2 short length from the round projection 703 to the edge portion of the annular positioning projection 76 in the membrane 70 is obtained in the operation of the present invention (as in 68 shown).
  • The redesigned devices of pump head body 60 and membrane 70 not only have a significant effect in reducing vibration, but also provide increased durability by avoiding relative displacement and maintaining the length of the moment arm L2.
  • As in 69 and 70 In the fifth exemplary embodiment, each group of round notches may be illustrated 603 in the pump head body 60 through a group of perforated holes 612 be replaced.
  • As in 71 and 72 In the fifth exemplary embodiment, each group of round notches may be illustrated 603 in the pump head body 60 (as in 62 to 64 shown) and each corresponding group of round projections 703 in the membrane 70 (as in 66 and 67 represented) by a group of round projections 630 in the pump head body 60 (as in 71 shown) and a group of corresponding round notches 730 in the membrane 70 (as in 71 shown) without affecting their mated condition.
  • Each group of round protrusions 630 at the top of the pump head body 60 becomes during assembly of the pump head body 60 and the membrane 70 completely into each group of corresponding round indentations 730 at the bottom side the membrane 70 used (as in 72 shown), with the result that as well a moment arm L3 short length of the round notches 730 to the edge portion of the annular positioning projection 76 in the membrane 70 is obtained in the operation of the present invention (as in 72 shown), so that the redesigned devices of pump head body 60 and membrane 70 also have a significant effect of reducing vibration.
  • 73 to 79 FIG. 12 are illustrative figures for the sixth exemplary embodiment of the vibration reducing structure for a compressing diaphragm pump of the present invention.
  • A group of square notches 604 is also around the circumference of each existing service hole 61 in the pump head body 60 arranged (as in 73 to 75 shown), while a group of square projections 704 further around the circumference of each existing annular positioning projection 76 in the membrane 70 in an appropriate position with any matching group of square notches 604 in the pump head body 60 is arranged (as in 77 and 78 shown).
  • Each group of square tabs 704 at the bottom side of the membrane 70 becomes during assembly of the pump head body 60 and the membrane 70 completely into each corresponding group of square notches 604 at the top of the pump head body 60 used (as in 79 and an associated enlarged view), with the result that a moment arm L2 of short length from the square protrusions 704 to the edge portion of the annular positioning projection 76 in the membrane 70 is obtained in the operation of the present invention (as in 79 and an associated enlarged view).
  • The redesigned devices of pump head body 60 and membrane 70 not only have a significant effect in reducing vibration, but also provide increased durability by avoiding relative displacement and maintaining the length of the moment arm L2.
  • As in 80 and 81 As shown in the sixth exemplary embodiment, each group of square notches 604 of the pump head body 60 through a group of perforated holes 613 be replaced.
  • As in 82 and 83 As shown in the sixth exemplary embodiment, each group of square notches 604 in the pump head body 60 (as in 73 to 75 shown) and each corresponding group of square projections 704 in the membrane 70 (as in 77 and 78 represented) by a group of square projections 640 in the pump head body 60 (as in 82 shown) and a group of corresponding square notches 740 in the membrane 70 (as in 82 shown) without affecting their mated condition.
  • Each group of square tabs 640 at the top of the pump head body 60 becomes during assembly of the pump head body 60 and the membrane 70 completely into each group of corresponding square notches 740 at the bottom side of the membrane 70 used (as in 83 shown), with the result that as well a momentary arm L3 short length of the square notches 740 to the periphery of the annular positioning projection 76 in the membrane 70 is obtained in the operation of the present invention (as in 83 and an associated enlarged view) so that the redesigned devices of the pump head body 60 and membrane 70 also have a significant effect of reducing vibration.
  • 84 to 86 FIG. 11 are illustrative figures for the seventh exemplary embodiment of the vibration reducing structure for a compressing diaphragm pump of the present invention.
  • A pair of a first inner notched ring 605 and a concentric second outer notched ring 606 is also around the circumference of each existing service hole 61 in the pump head body 60 arranged (as in 84 shown), while a pair of a first inner protruding ring 705 and a concentric second outer protruding ring 706 further around the circumference of each existing annular positioning projection 76 in the membrane 70 at a position corresponding to a position of each mating pair of a first inner notched ring 605 and a concentric second outer notched ring 606 in the pump head body 60 is arranged (as in 85 shown).
  • Each pair of a first inner protruding ring 705 and a concentric second outer protruding ring 706 at the bottom side of the membrane 70 becomes during assembly of the pump head body 60 and the membrane 70 completely in each corresponding pair of a first inner notched ring 605 and a concentric second outer notched ring 606 at the top of the pump head body 60 used (as in 86 shown), with the result that a moment arm L2 short length from the first inner protruding ring 705 to the edge portion of the annular positioning projection 76 in the membrane 70 is obtained in the operation of the present invention (as in 86 shown).
  • The redesigned devices of pump head body 60 and membrane 70 not only have a significant effect in reducing vibration, but also provide increased resistance by avoiding a relative displacement and maintaining the length of the moment arm L2 to the force F acting on the eccentric disc 52 acts to resist.
  • As in 87 and 88 For example, in the seventh exemplary embodiment, each pair may comprise a first inner notched ring 605 and a concentric second outer notched ring 606 in the pump head body 60 through a pair of a first inner perforated ring 614 and a concentric second outer perforated ring 615 be replaced.
  • As in 89 and 90 For example, in the seventh exemplary embodiment, each pair may comprise a first inner notched ring 605 and a concentric second outer notched ring 606 in the pump head body 60 (as in 84 shown) and each corresponding pair of a first inner protruding ring 705 and a concentric second outer protruding ring 706 in the membrane 70 (as in 77 and 78 shown) by a pair of a first inner protruding ring 650 and a concentric second outer protruding ring 660 in the pump head body 60 (as in 88 shown) and a corresponding pair of a first notched ring 750 and a concentric second outer notched ring 760 in the membrane 70 (as in 89 shown) without affecting their mated condition.
  • Each pair of a first inner protruding ring 650 and a concentric second outer protruding ring 660 at the top of the pump head body 60 becomes during assembly of the pump head body 60 and the membrane 70 completely in each corresponding pair of a first notched ring 750 and a concentric second outer notched ring 760 at the bottom side of the membrane 70 used (as in 90 shown), with the result that also a moment arm L3 of short length from the first inner notched ring 750 to the edge portion of the annular positioning projection 76 in the membrane 70 is obtained in the operation of the present invention (as in 90 shown).
  • The redesigned devices of pump head body 60 and membrane 70 not only have a significant effect in reducing vibration, but also provide increased resistance by avoiding relative displacement and maintaining the length of the moment arm L3.
  • With the foregoing disclosure, the present invention achieves the vibration reducing effect of the compressing diaphragm pump through a simple, redesigned pump head body 60 and a membrane 70 without increasing the total cost. The present invention certainly solves all the problems of noise and resonant vibration experienced by the conventional compressing diaphragm pump, and thus the invention has valuable industrial applicability.
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • US 4396357 [0002]
    • US 4610605 [0002]
    • US 5476367 [0002]
    • US 5571000 [0002]
    • US 5615597 [0002]
    • US 5626464 [0002]
    • US 5649812 [0002]
    • US 5706715 [0002]
    • US 5791882 [0002]
    • US 5816133 [0002]
    • US 6048183 [0002]
    • US 6089838 [0002]
    • US 6299414 [0002]
    • US 6604909 [0002]
    • US 6840745 [0002]
    • US 6892624 [0002]

Claims (34)

  1. A compressing diaphragm pump having a vibration-reducing structure, the compressing diaphragm pump having a motor, a pump head body fixed to a motor housing, a disc holder located at a lower side of the pump head body, and a plurality of eccentric disks extending through service holes in the pump head body Diaphragm mounted on the eccentric discs through the service holes and located on an upper side of the pump head body and a plurality of pump pistons arranged to be moved in pumping motion as the diaphragm moves, wherein: the pump head body includes at least a first curved vibration reducing positioning structure at each operating hole on the upper side of the pump head body, the diaphragm includes at least one second curved positioning structure at a corresponding position on the diaphragm corresponding to a position of the at least one first vibration reducing positioning structure on the pump head body, and the at least one first positioning structure mates with the corresponding at least one second positioning structure to reduce a moment arm generated during pumping by movement of the diaphragm, thereby producing less torque during movement to increase magnitude of vibration and vibration noise reduce.
  2. The compression-type diaphragm pump having a vibration-reducing structure according to claim 1, wherein the engine includes an output shaft, and the compressing diaphragm pump further includes a swash plate having an integrated protruding camshaft and a spool valve assembly, and wherein: the output shaft of the engine extends through a shaft coupling hole in the swash plate; to set the swashplate in rotation; the integrated projecting camshaft of the swash plate extends through a central bearing of the eccentric disc holder; the eccentric disk mount has a plurality of eccentric disks equally spaced about a circumference of the eccentric disk mount, rotation of the swashplate causing successive upward and downward movement of each of the eccentric disks, each eccentric disk having an upper surface and a mounting bore formed in the upper surface; the pump head body is fixed to an upper chassis of the engine to confine the swash plate and the eccentric disk holder therein, the pump head body including a plurality of service holes arranged at locations corresponding to locations of the plurality of eccentric disks, each operating hole having an inner diameter slightly larger as an outer diameter of a corresponding one of the eccentric discs to receive respectively the corresponding one of the eccentric discs; the membrane is made of a semi-rigid elastic material and placed on the pump head body, the membrane having at least one raised edge as well as a plurality of equally spaced radial raised barrier ribs joined to the at least one raised skirt to form three equivalent piston actuating zones each piston actuating zone has an actuating zone hole formed therein at a position corresponding to a position of a mounting hole in a corresponding one of the eccentric disks; each pumping piston has a stepped hole and a fastener extends through the stepped hole of each pumping piston through the actuating zone hole of each corresponding piston actuating zone of the diaphragm and into the corresponding mounting hole in a corresponding one of the eccentric disks around the diaphragm and each of the pumping pistons at the corresponding eccentric disks in the eccentric disk holder to fix; the piston valve assembly, which covers the membrane and is secured to the diaphragm by a sealing engagement at the periphery, includes a central outlet support having a central positioning bore and a plurality of equivalent sectors, each having a plurality of equally circumferentially spaced exhaust ports, a T-shaped plastic antifriction Return valve having a central positioning shaft and a plurality of circumferentially disposed inlet brackets, each of the inlet brackets containing a plurality of evenly spaced inlet openings and an inverted central piston disc mounted on the respective inlet bracket, so that each piston disc serves as a valve for each corresponding group of a plurality of inlet openings wherein the central positioning stem of the plastic anti-return valve mates with the central positioning bore of the central outlet mount, such that the plurality of outlet openings in the z After the diaphragm has been secured to the edge region on the piston valve assembly, one end of each of the preliminary water pressurization chambers is formed with each corresponding one the inlet openings may be in communication; the pump head cover that covers the pump head body, so that the piston valve assembly, the Pump piston and the membrane are included therein, a water inlet opening and a water outlet opening, wherein the pump head cover is hermetically attached to the assembly of diaphragm and piston valve assembly, wherein a high-pressure water chamber between a cavity formed by an inner wall of an annular rib ring, and the central outlet holder the piston valve assembly is designed; the at least one first positioning structure includes at least one of a curved base groove, a curved slot, a curved set of apertures, a curved projection and a curved set of projections, and further circumferentially disposed about an upper surface of each working hole in the pump head body; and second, at least one second vibration reducing positioning structure including one of a curved base projection, a curved set of protrusions, a curved groove, a curved slot, and a curved set of apertures, and further circumferentially around each concentric annular positioning protrusion on the bottom side of the diaphragm a position corresponding to a position of each first positioning structure in the pump head body, so that every second positioning structure on the bottom side of the diaphragm matches any corresponding first positioning structure on the top of the pump head body during assembly of the pump head body and the diaphragm, the moment arm passing through a movement of the diaphragm is generated in response to an upward and downward movement of the piston, only between the first vibration-reducing structures and a periphery of the second vibration-reducing structure which reduces vibration resulting from movement of the diaphragm.
  3. The compression-type diaphragm pump having a vibration-reducing structure according to claim 2, wherein each first vibration-reducing positioning structure is a curved groove in the pump head body, and each second vibration-reducing positioning structure is a curved projection extending from the diaphragm.
  4. The compression-type diaphragm pump having a vibration-reducing structure according to claim 2, wherein each first vibration-reducing positioning structure is a curved slot in the pump head body, and each second vibration-reducing positioning structure is a curved projection extending from the diaphragm.
  5. The compressing diaphragm pump having a vibration-reducing structure according to claim 2, wherein each first vibration-reducing positioning structure is a curved set of openings in the pump head body and each second vibration-reducing positioning structure is a curved set of projections extending from the diaphragm.
  6. The compression-type diaphragm pump having a vibration-reducing structure according to claim 2, wherein each first vibration-reducing positioning structure is a curved protrusion extending from the pump head body, and each second vibration-reducing positioning structure is a curved groove in the diaphragm.
  7. The compression-type diaphragm pump having a vibration-reducing structure according to claim 2, wherein each first vibration-reducing positioning structure is a curved protrusion extending from the pump head body, and each second vibration-reducing positioning structure is a curved slit in the diaphragm.
  8. The compressing diaphragm pump having a vibration reducing structure according to claim 2, wherein each first vibration reducing positioning structure is a curved set of protrusions extending from the pump head body, and each second vibration reducing positioning structure is a curved set of openings in the diaphragm.
  9. A compressing diaphragm pump having a vibration reducing structure according to claim 8, wherein said projections are round protrusions.
  10. A compressing diaphragm pump having a vibration reducing structure according to claim 8, wherein said projections are square projections.
  11. A compressing diaphragm pump having a vibration reducing structure according to claim 2, wherein each first vibration reducing positioning structure is a pair of curved grooves or slits in the pump head body and each second vibration reducing positioning structure is a pair of curved protrusions extending from the diaphragm.
  12. The compression-type diaphragm pump having a vibration-reducing structure according to claim 2, wherein each first vibration-reducing positioning structure is a pair of curved protrusions extending from the pump head body, and each second vibration-reducing positioning structure is a pair of curved grooves or slits in the diaphragm.
  13. A compression-type diaphragm pump having a vibration-reducing structure according to claim 12, wherein said projections are round protrusions.
  14. A compression-type diaphragm pump having a vibration-reducing structure according to claim 12, wherein said projections are round protrusions.
  15. The compression-type diaphragm pump having a vibration-reducing structure according to claim 12, wherein each first vibration-reducing positioning structure is a notched ring in the pump head body, and each second vibration-reducing positioning structure is a ring structure protruding from the diaphragm.
  16. A compressing diaphragm pump having a vibration reducing structure according to claim 2, wherein each first vibration reducing positioning structure is a pair of notched rings in the pump head body and each second vibration reducing positioning structure is a pair of ring structures protruding from the diaphragm.
  17. The compressing diaphragm pump having a vibration-reducing structure according to claim 2, wherein each of the eccentric discs further includes an annular groove extending around the mounting hole, and the pump head body further includes a plurality of lower annular flanges extending into corresponding ones of the annular grooves when Pump head body is attached to the eccentric disc.
  18. The compressing diaphragm pump having a vibration reducing structure according to claim 2, wherein the at least one raised edge of the diaphragm is an inner raised rim, the diaphragm including a parallel outer raised rim, the piston valve assembly including a downwardly extending raised rim and extending downwardly extending ridge of the piston valve assembly extends between the inner and outer raised edges of the diaphragm to provide an edge seal when the diaphragm is secured to the edge region on the piston valve assembly.
  19. A compressing diaphragm pump having a vibration-reducing structure according to claim 2, wherein a corresponding number of the eccentric discs, the operating holes in the pump head body, the piston actuating zones and the pumping pistons is three.
  20. The compression-type diaphragm pump having a vibration-reducing structure according to claim 2, wherein a number of the circumferentially-arranged inlet brackets are three.
  21. A compressing diaphragm pump having a vibration-reducing structure according to claim 2, wherein the fixing holes in the eccentric disks are tapped holes and the fixing members are screws.
  22. The compression-type diaphragm pump having a vibration-reducing structure according to claim 2, wherein the cavity is formed by pressing a bottom of an annular rib ring of the pump head cover onto an edge of the central exhaust bracket of the piston valve assembly.
  23. A compression-type diaphragm pump having a vibration-reducing structure according to claim 1, wherein each first vibration-reducing positioning structure is a curved groove in the pump head body, and each second vibration-reducing positioning structure is a curved projection extending from the diaphragm.
  24. The compression-type diaphragm pump having a vibration-reducing structure according to claim 1, wherein each first vibration-reducing positioning structure is a curved slot in the pump head body, and each second vibration-reducing positioning structure is a curved projection extending from the diaphragm.
  25. A compressing diaphragm pump having a vibration reducing structure according to claim 1, wherein each first vibration reducing positioning structure is a curved set of openings in the pump head body and each second vibration reducing positioning structure is a curved set of protrusions extending from the diaphragm.
  26. A compression-type diaphragm pump having a vibration-reducing structure according to claim 1, wherein each first vibration-reducing positioning structure is a curved protrusion extending from the pump head body, and each second vibration-reducing positioning structure is a curved groove in the diaphragm.
  27. The compression-type diaphragm pump having a vibration-reducing structure according to claim 1, wherein each first vibration-reducing positioning structure is a curved protrusion extending from the pump head body, and each second vibration-reducing positioning structure is a curved slit in the diaphragm.
  28. A compressing diaphragm pump having a vibration reducing structure according to claim 1, wherein each first vibration reducing positioning structure is a curved set of protrusions extending from the pump head body, and each second vibration reducing positioning structure is a curved set of openings in the diaphragm.
  29. A compression-type diaphragm pump having a vibration-reducing structure according to claim 1, wherein each first vibration-reducing positioning structure is a pair of curved grooves or slits in the pump head body and each second vibration-reducing positioning structure is a pair of curved protrusions extending from the diaphragm.
  30. A compression-type diaphragm pump having a vibration-reducing structure according to claim 1, wherein each first vibration-reducing positioning structure is a pair of curved protrusions extending from the pump head body, and each second vibration-reducing positioning structure is a pair of curved grooves or slits in the diaphragm.
  31. A compression-type diaphragm pump having a vibration-reducing structure according to claim 1, wherein each first vibration-reducing positioning structure is a notched ring in the pump head body, and each second vibration-reducing positioning structure is a ring structure protruding from the diaphragm.
  32. The compression-type diaphragm pump having a vibration-reducing structure according to claim 1, wherein each first vibration-reducing positioning structure is a pair of notched rings in the pump head body and each second vibration-reducing positioning structure is a pair of ring structures protruding from the diaphragm.
  33. A compressing diaphragm pump having a vibration-reducing structure according to claim 1, wherein the motor is a brush motor.
  34. A compression-type diaphragm pump having a vibration-reducing structure according to claim 1, wherein said motor is a brushless motor.
DE102015000209.0A 2014-01-16 2015-01-15 Vibration reducing structure for compressive membrane pump Ceased DE102015000209A1 (en)

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GB2527910A (en) * 2014-05-20 2016-01-06 Ying Lin Cai Eccentric roundel structure for compressing diaphragm pump with multiple effects
GB2527911A (en) * 2014-05-20 2016-01-06 Ying Lin Cai Compressing diaphragm pump with multiple effects

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JP2015135114A (en) 2015-07-27
JP6011891B2 (en) 2016-10-25
CN104791227B (en) 2019-06-18
CN104791227A (en) 2015-07-22
GB2525277B (en) 2018-04-18
KR101835177B1 (en) 2018-03-06
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IN2014MU04211A (en) 2015-10-16
CN204591643U (en) 2015-08-26

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