JP6128343B2 - Vibration reduction method of pressure-feeding diaphragm pump - Google Patents

Description

  The present invention relates to a vibration reduction method for a pressure-feeding diaphragm pump used in a reverse osmosis purification system, and in particular, the vibration reduction unit is installed in a pressure-feeding diaphragm pump by reducing the vibration strength of the pump using the vibration reduction unit. Then, it is related with the method of removing the unpleasant sound produced by resonance with the housing | casing of a reverse osmosis purification system.

  Conventional pressure-feeding diaphragm pumps used exclusively with RO (reverse osmosis) purifiers or RO water purification systems are disclosed in Patent Document 1, Patent Document 2, Patent Document 3, Patent Document 4, Patent Document 5, Patent Document 6, and Patent Document. 7, Patent Document 8, Patent Document 9, Patent Document 10, Patent Document 11, Patent Document 12, Patent Document 13, Patent Document 14, Patent Document 15, and Patent Document 16.

As shown in FIGS. 1 to 9, the conventional pressure-feeding diaphragm pump basically includes a brushed motor 10 having an output shaft 11, a motor upper chassis 30, a wobble plate 40 having an integral protruding cam lobe shaft, an eccentricity, and the like. A disk mount 50, a pump head body 60, a diaphragm membrane 70, three pumping pistons 80, a piston valve assembly 90, and a pump head cover 20 are provided. The motor upper chassis 30 includes components of a bearing 31 through which the output shaft 11 of the motor 10 extends and an upper annular rib ring 32 in which the three positioning seats 33 are disposed so as to be evenly and circumferentially positioned. Including. Each positioning seat 33 is formed with a threaded hole 34. A wobble plate 40 having an integral protruding cam lobe shaft includes a shaft coupling hole 41 through which a corresponding motor output shaft 11 of the motor 10 extends, and an eccentric disk mount 50 is connected to a bearing 51 for the corresponding wobble plate 40. Three eccentric disks 52 arranged uniformly and circumferentially on the wobble plate 40, and each of the eccentric disks 52 is formed with a threaded hole 53 and an annular positioning recess 54, respectively. To. The pump head body 60 covers the upper annular rib ring 32 of the motor upper chassis 30 and surrounds the wobble plate 40 and the eccentric disk mount 50. The pump head main body 60 is uniformly disposed so as to be positioned in the circumferential direction, and each of the through holes 61 receives the corresponding eccentric disk 52, so that the eccentric disk mounting base 50 has an outside of the eccentric disk 52. It includes three through holes 61 arranged so as to have an inner diameter slightly larger than the diameter. The pump head main body 60 is further provided with a lower annular flange 62 formed below to fit with the corresponding motor upper chassis 30 so as to be flush with the periphery, and uniformly disposed so as to be positioned in the circumferential direction. Three inner peripheral tightening through holes 63 and three outer peripheral tightening through holes 64 are included, and each inner peripheral tightening through hole 63 is fitted to the positioning seat 33 in the motor upper chassis 30. Diaphragm film 70, which is plastic extruded and placed on pump head body 60, includes sealing protrusion rims 71 and three evenly spaced radial protrusion partitioning ribs 72, each sealing protrusion rim 71. Terminate and connect to each other. Three equivalent piston working sections 73 are formed and partitioned by radial projection partitioning ribs 72 (as shown in FIGS. 7 and 8), each piston working section 73 being each threaded hole 53 in the eccentric disk mount 50. And an annular positioning convex portion 75 for each central through hole 74 is formed on the bottom side of the piston operating section 73. Each pumping piston 80 is disposed in a corresponding piston working section 73 of the diaphragm membrane 70, and each pumping piston 80 includes a stepped hole 81 therethrough. By passing the clamping screw 1 through the stepped hole 81 of each pumping piston 80 and the central through hole 74 of each corresponding piston working section 73 in the diaphragm membrane 70, the diaphragm membrane 70 and the three pumping pistons 80 are (As shown in FIG. 9), it can be surely screwed into each threaded hole 53 of the corresponding three annular positioning recesses 54 in the eccentric disk mount 50. The piston valve assembly 90 includes a central outlet mount 91 having a central positioning hole 92 and a plastic backflow prevention having a central positioning shank, with three equivalent areas each including a plurality of outlet ports 94 that are uniformly circumferentially located. It includes a valve 93 and three peripheral inlet mounts having a plurality of uniformly circumferentially located inlet ports 95 and inverted central piston disks 96 respectively. The central positioning shank of the plastic check valve 93 is mated with the central positioning hole 92 of the central outlet mount 91, and each piston disk 96 is in a corresponding group of a plurality of inlet ports 95 that are uniformly circumferentially located. Acts as a valve. The pump head cover 20 includes an assembly of a water supply port 21, a drain port 22, three outer peripheral tightening through holes 23 and three inner peripheral tightening through holes 23, a diaphragm membrane 70, and a piston valve assembly 90. The outer rim includes a step rim 24 and an annular rib ring 25 disposed on the inner bottom so that the outer rim can be attached to the step rim 24 with water tightness. The water inlet chamber 26 is configured between each pumping piston 80 of the diaphragm membrane 70 and a corresponding group of outlet ports 94 in each corresponding region of the central outlet mount 91, and the water channel at one end of the water inlet chamber 26 flows back in plastic. Controlled by a prevention valve 93, while the other end is in communication with a corresponding inlet port 95 (as shown in FIG. 9) and the high pressure water chamber 27 is connected to an annular rib ring (as shown in FIG. 9). By pressing the bottom of 25 against the central outlet mount 91 of the piston valve assembly 90, it is configured between the cavity formed by the inner wall of the annular rib ring 25 and the central outlet mount 91 of the piston valve assembly 90. .

  1 and 9 show how a conventional pressure-feeding diaphragm pump is assembled. First, the three annular positioning protrusions 75 are inserted into the corresponding three annular positioning recesses 54 in the eccentric disk 52 of the eccentric disk mount 50 on the bottom side of the diaphragm film 70. Next, the clamping screw 1 is inserted through the stepped hole 81 of each pumping piston 80 and the central through hole 74 of each corresponding piston operating section 73 in the diaphragm membrane 70. Third, move each clamping screw 1 until it is securely fastened to move the diaphragm membrane 70 and the three pumping pistons 80 to the corresponding three annular positioning recesses in the eccentric disk mount 50 (as shown in FIG. 9). The screw holes 53 are securely screwed. Fourth, the three tightening bolts 2 are inserted from the three outer periphery tightening through holes 23 of the pump head cover 20 and the corresponding outer periphery tightening through holes 64 in the pump head body 60.

  Fifth, a nut 3 (shown in FIG. 9) is placed on each clamping bolt 2 and the pump head cover 20 and pump head body 60 are securely screwed together (as shown in FIG. 1). Sixth, the three self-tapping screws or self-drilling screws 4 are inserted from the other three inner peripheral tightening through holes 23 of the pump head cover 20 and the corresponding inner peripheral tightening through holes 63 in the pump head body 60. The Finally, each self-tapping screw or self-drilling screw 4 is moved until it is firmly fixed, and the pump head cover 20 and the pump head body 60 are securely screwed together (as shown in FIGS. 1 and 9). Complete the entire assembly of a conventional pressure diaphragm pump.

  FIG. 10 and FIG. 11 are explanatory diagrams for practical operation modes of the conventional pressure-feeding diaphragm pump.

  First, when the power of the motor 10 is turned on, the wobble plate 40 is rotated by the motor output shaft 11, whereby the three eccentric disks 52 on the eccentric disk mount 50 are continuously moved up and down with a constant reciprocating stroke. Move to. Next, in the meantime, the three pumping pistons 80 and the three piston operating sections 73 in the diaphragm membrane 70 are driven by the up and down reciprocating strokes of the three eccentric disks 52 so as to move with continuous vertical displacement. Third, when the eccentric disc 52 is moved in a downward stroke by the pumping piston 80 and the piston operating section 73 is displaced downward, the piston disc 96 in the piston valve assembly 90 is pushed open, thereby ( Tap water W (as indicated by the arrows in the enlarged portion of FIG. 10) can flow continuously into the inlet chamber 26 via the inlet port 95 via the water inlet 21 in the pump head cover 20. Fourth, when the eccentric disk 52 is moved in the upward stroke by the pumping piston 80 and the piston operating section 73 is displaced upward, the piston disk 96 in the piston valve assembly 90 is drawn into the closed state, and the water inlet chamber 26 is pulled. By compressing the tap water W and increasing the water pressure in the range of 80 psi to 100 psi to obtain the pressurized water Wp, the plastic backflow prevention valve 93 in the piston valve assembly 90 is pushed out. Become. Fifth, when the plastic backflow prevention valve 93 in the piston valve assembly 90 is pushed out to the open state, the pressurized water Wp in the water inlet chamber 26 is pressurized through a group of outlet ports 94 to the corresponding area in the central outlet mount 91. It is guided into the water chamber 27 and then discharged from the outlet 22 in the pump head cover 20 (as indicated by the arrow in the enlarged portion of FIG. 11). Finally, as a result of repeated continuous action for each group of three regions of outlet ports 94 in the central outlet mount 91, the pressurized water Wp is continuously discharged from the conventional pumping diaphragm pump and further RO filtered by the RO cartridge. Thus, the finally filtered pressurized water Wp can be used in the reverse osmosis water purification system.

  Referring to FIGS. 12 to 14, there is a long and serious drawback in the above-described conventional pumping diaphragm pump. As described above, when the power of the motor 10 is turned on, the wobble plate 40 is rotated by the motor output shaft 11, whereby the three eccentric disks 52 on the eccentric disk mounting base 50 have a constant vertical reciprocating stroke. On the other hand, the three pumping pistons 80 and the three piston operating sections 73 in the diaphragm membrane 70 are driven by the up and down reciprocating strokes of the three eccentric disks 52 and moved by the up and down displacement. Thus, the corresponding acting force F (as shown in FIG. 13) is applied to the three piston acting sections 73 at the moment arm length L1 measured from the sealing projection rim 71 to the periphery of the annular positioning projection 75. Works constantly. Thereby, the resulting torque is produced by multiplying the acting force F and the moment arm length L1 according to the equation "torque = acting force F x moment arm length L1". However, the resulting torque causes direct vibration of the entire conventional pumping diaphragm pump. When the vibration intensity caused by the three eccentric disks 52 acting alternately due to the high rotational speed of the motor output shaft 11 in the motor 10 up to 700 to 1200 revolutions / minute reaches a continuously unacceptable level. There is. Furthermore, in addition to the drawbacks due to fundamental and direct vibration, the water pipe P connected to the outlet 22 of the pump head cover 20 (as indicated by the arrow “a” in FIG. 14 (a)). It also oscillates in synchronization with the vibration of the pump. This “synchronous rocking” of the water pipe P also causes other parts of the conventional pressure-feeding diaphragm pump to rock simultaneously. As a result, the vibration of the casing C of the reverse osmosis purification unit becomes stronger due to the above-described all-resonance oscillation, and the vibration noise increases. After a certain period of time, the connection between the water supply pipe P and the discharge port 22 is The conventional pressure-feeding diaphragm pump leaks water by gradually loosening and gradually loosening other parts affected by the swing.

  In order to address the above disadvantages of conventional pumping diaphragm pumps, a cushion base 100 having a pair of vanes 101 is added to provide auxiliary support for the pump (as shown in FIG. 14) to enhance vibration suppression. For this purpose, each blade 101 is further provided with a sleeve by a rubber shock absorber 102. When a conventional pumping diaphragm pump is installed, the cushion base 100 is firmly screwed into the casing C of the reverse osmosis purification unit by an appropriate tightening screw 103 and a corresponding nut 104.

  However, the practical vibration suppression effect by using the above-described cushion base 100 together with the blade 101 and the rubber shock absorber 102 only affects the defects caused by the fundamental vibration to some extent. It does not solve the drawbacks of diaphragm pump resonance oscillation or overall water leakage. The problem of substantial reduction in all of the drawbacks associated with the operating vibrations of a pumped diaphragm pump has become a serious problem.

US Pat. No. 4,396,357 U.S. Pat. No. 4,610,605 US Pat. No. 5,476,367 US Patent No. 5571000 US Pat. No. 5,615,597 US Pat. No. 5,626,464 US Pat. No. 5,649,812 US Pat. No. 5,706,715 US Pat. No. 5,791,882 US Pat. No. 5,816,133 US Pat. No. 6,048,183 US Patent No. 6089838 US Pat. No. 6,299,414 US Pat. No. 6,604,909 US Pat. No. 6,840,745 US Pat. No. 6,922,624

  An object of the present invention is to provide a vibration reducing method for a pressure-feeding diaphragm pump characterized by a vibration reducing unit. The pressure-feeding diaphragm pump includes a brush / brushless motor having an output shaft, a pump head cover, a motor upper chassis, a wobble plate having an integral protruding cam lobe shaft, an eccentric disk mounting base having three eccentric disks, and a pump head body. A diaphragm membrane having three piston working sections, three pumping pistons, and a piston valve assembly. The vibration reduction unit is disposed between the pump head body and the diaphragm membrane. The vibration reduction unit functions to reduce the torque by shortening the length of the moment arm with respect to the rotational movement action of the eccentric disk mount in each piston action section. Since the torque is the same as the length of the moment arm multiplied by a constant acting force, a low torque is generated by the shortened length of the moment arm. Therefore, by reducing the torque for the pressure-feeding diaphragm pump, the intensity of vibration is substantially reduced, and as a result, unpleasant vibration noise is reduced.

  Another object of the present invention is to vibrate a pressure-feeding diaphragm pump characterized by a vibration reduction unit disposed between a pump head body having three basic curved concave portions and a diaphragm membrane having three basic curved convex portions. It is a reduction method, and it is providing the vibration reduction method of a pressure-feeding diaphragm pump by which three basic curved convex parts are completely inserted in the corresponding three basic curved concave parts. The vibration reduction unit functions to reduce the torque by shortening the length of the moment arm for each piston action section with respect to the turning action of the eccentric disk mount. Since the torque is obtained by multiplying the length of the moment arm by a constant force, the torque is reduced by the shortened moment arm length, and the strength of the vibration and the resulting vibration noise are also substantially reduced. To do.

It is a see-through | perspective assembly drawing of the conventional pressure-feeding diaphragm pump. It is a perspective exploded view of the conventional pressure-feeding diaphragm pump. It is a perspective view of the pump head main body of the conventional pressure-feeding diaphragm pump. It is sectional drawing in the cutting line 3-3 of above-mentioned FIG. It is a top view of the pump head main body of the conventional pressure-feeding diaphragm pump. It is a perspective view of the diaphragm membrane of the conventional pressure-feeding diaphragm pump. It is sectional drawing in the cutting line 7-7 of above-mentioned FIG. It is a bottom view of the diaphragm membrane of the conventional pressure-feeding diaphragm pump. It is sectional drawing in the cutting line 9-9 of above-mentioned FIG. It is 1st operation | movement explanatory drawing of the conventional pressure-feeding diaphragm pump. It is 2nd operation | movement explanatory drawing of the conventional pressure-feeding diaphragm pump. It is a 3rd operation explanatory view of the conventional pressure-feeding diaphragm pump with the elements on larger scale of the circled part. FIG. 13 is a partially enlarged view of a circled portion “a” in the enlarged view of FIG. 12 described above. It is a schematic side view which shows the conventional pressure-feeding diaphragm pump installed on the attachment base in a reverse osmosis purification system. FIG. 15 is a schematic end view of the conventional pumping diaphragm pump installed on the mounting base shown in FIG. 14. 1 is a perspective exploded view of a first exemplary embodiment of the present invention. FIG. 2 is a perspective view of a pump head body in the first exemplary embodiment of the present invention. FIG. It is sectional drawing in the cutting line 17-17 of above-mentioned FIG. FIG. 2 is a top view of a pump head body in the first exemplary embodiment of the present invention. 2 is a perspective view of a diaphragm membrane in the first exemplary embodiment of the present invention. FIG. It is sectional drawing in the cutting line 20-20 of above-mentioned FIG. It is a bottom view of a diaphragm membrane in the first exemplary embodiment of the present invention. 1 is an assembled cross-sectional view of a first exemplary embodiment of the present invention. FIG. It is operation | movement explanatory drawing about the 1st exemplary embodiment of this invention with the elements on larger scale of the part enclosed with the circle. FIG. 24 is a partially enlarged view of a circled portion “a” in FIG. 23 described above. FIG. 6 is a perspective view of a pump head body in the second exemplary embodiment of the present invention. It is sectional drawing in the cutting line 26-26 of above-mentioned FIG. It is a top view of a pump head body in the second exemplary embodiment of the present invention. FIG. 6 is a perspective view of a diaphragm membrane in the second exemplary embodiment of the present invention. FIG. 29 is a cross-sectional view taken along section line 29-29 of FIG. 28 described above. FIG. 6 is a perspective view of a diaphragm membrane in the second exemplary embodiment of the present invention. FIG. 6 is a cross-sectional assembly view of a diaphragm membrane and a pump head body in the second exemplary embodiment of the present invention. FIG. 6 is a perspective view of a pump head body in the third exemplary embodiment of the present invention. It is sectional drawing in the cutting line 33-33 of above-mentioned FIG. It is a top view of the pump head body in the third exemplary embodiment of the present invention. FIG. 6 is a perspective view of a diaphragm membrane in the third exemplary embodiment of the present invention. It is sectional drawing in the cutting line 36-36 of above-mentioned FIG. It is a bottom view of a pump head body in the third exemplary embodiment of the present invention. FIG. 6 is a cross-sectional assembly view of a diaphragm membrane and a pump head body in the third exemplary embodiment of the present invention. FIG. 10 is a perspective view of a pump head body in the fourth exemplary embodiment of the present invention. It is sectional drawing in the cutting line 40-40 of above-mentioned FIG. It is a top view of the pump head main body in the 4th exemplary embodiment of the present invention. FIG. 10 is a perspective view of a diaphragm membrane in the fourth exemplary embodiment of the present invention. It is sectional drawing in the cutting line 43-43 of above-mentioned FIG. It is a bottom view of a diaphragm membrane in the fourth exemplary embodiment of the present invention. FIG. 10 is a perspective view of a pump head body in a variation of the fourth exemplary embodiment of the present invention. It is sectional drawing in the cutting line 45-45 of above-mentioned FIG. FIG. 10 is a top view of a pump head body in a variation of the fourth exemplary embodiment of the present invention. FIG. 10 is a perspective view of a diaphragm membrane in a variation of the fourth exemplary embodiment of the present invention. It is sectional drawing in the cutting line 49-49 of above-mentioned FIG. FIG. 20 is a bottom view of a diaphragm membrane in a variation of the fourth exemplary embodiment of the present invention. FIG. 10 is a perspective view of a pump head body in a variation of the fourth exemplary embodiment of the present invention. It is sectional drawing in the cutting line 52-52 of above-mentioned FIG. FIG. 10 is a top view of a pump head body in a variation of the fourth exemplary embodiment of the present invention. FIG. 10 is a perspective view of a pump head body in a variation of the fourth exemplary embodiment of the present invention. It is sectional drawing in the cutting line 55-55 of above-mentioned FIG. FIG. 20 is a bottom view of a diaphragm membrane in a variation of the fourth exemplary embodiment of the present invention. It is a top view of the pump head body in the fifth exemplary embodiment of the present invention. It is a bottom view of a diaphragm membrane in the fifth exemplary embodiment of the present invention. FIG. 10 is a cross-sectional assembly view of a diaphragm membrane and a pump head body in the fifth exemplary embodiment of the present invention.

  15 to 59 are explanatory diagrams of the vibration reducing method of the pressure-feeding diaphragm pump according to the present invention. The pressure-feeding diaphragm pump includes a motor 10 having an output shaft 11, a pump head cover 20, a motor upper chassis 30, a wobble plate 40 having an integral protruding cam lobe shaft, an eccentric disk mounting base 50, a pump head main body 60, A diaphragm membrane 70, three pumping pistons 80, and a piston valve assembly 90 are included. In this case, except for those described later, the constituent elements included in each part may be the same as the constituent parts in the conventional pressure-feeding diaphragm pump described above.

  The basic operation mode of the pressure-feeding diaphragm pump is as follows. When the power of the motor 10 is turned on, the wobble plate 40 is rotated by the motor output shaft 11, whereby the three eccentric disks 52 on the eccentric disk mounting base 50 move continuously and constantly with the up and down reciprocating strokes. . In the meantime, the three pumping pistons 80 and the three piston operating sections 73 in the diaphragm membrane 70 are driven by the continuous vertical reciprocating strokes of the three eccentric disks 52 so as to move with the vertical displacement. Thereby, the tap water W flowing into the piston valve assembly 90 is compressed to obtain the pressurized water Wp. The pressurized water Wp is continuously discharged from the pressure-feeding diaphragm pump, further RO filtered by the RO cartridge, and used in the reverse osmosis water purification system.

  In order to reduce the torque of each piston action section 73 in the diaphragm film 70 by reducing the length of the moment arm generated for the rotational action of each eccentric disk 52 in the eccentric disk mount 50, the pump head body 60 is reduced. A vibration reduction unit is further disposed between the diaphragm diaphragm 70 and the diaphragm diaphragm so as to effectively reduce the vibration strength of the pressure-feeding diaphragm pump. The vibration reduction unit includes a pair of fitted operating fasteners. The pair of fasteners includes a mating diaphragm membrane actuated fastener 700 (shown by reference numeral 700 shown in FIG. 21) and a pump head body actuated fastener 600 (shown by reference numeral 600 shown in FIGS. 16 and 18). It consists of. The pump head main body operating fastener 600 is disposed on the upper side of the pump head main body 60, and the diaphragm membrane operating fastener 700 is located on the bottom surface side of the diaphragm membrane 70 at a position corresponding to the position of the pump head main body operating fastener 600 on the pump head main body 60. It is arranged. The length L1 of the moment arm from the sealing projection rim 71 of the conventional pressure-feeding diaphragm pump to the periphery of the annular positioning projection 75 by the vibration reduction unit (indicated by the moment arm lengths L1 and L2 shown in FIG. 24). For the rotational action of each eccentric disk 52 on the eccentric disk mount 50, the new moment arm length L2 from the basic curved convex part 76 to the periphery of the annular positioning convex part 75 is shortened.

  FIGS. 15-22 is explanatory drawing about 1st example embodiment of the vibration reduction method of the pressure-feeding diaphragm pump using the vibration reduction unit newly devised in this invention. Here, the pump head body actuating fastener 600 and the mating diaphragm membrane actuating fastener 700 of the vibration reduction unit each have three basic curves (indicated by reference numeral 65 corresponding to reference numeral 600 shown in FIGS. 16 and 18). It includes a recess 65 and three corresponding basic curved protrusions 76 (indicated by reference numeral 76 corresponding to reference numeral 700 shown in FIG. 21). Each basic curved groove 65 is circumferentially disposed around the upper side of each through hole 61 in the pump head body 60, and each basic curved convex portion 76 is positioned at each fitting basic curved groove 65 in the pump head main body 60. Are arranged in the circumferential direction around each concentric annular positioning convex portion 75 on the bottom surface side of the diaphragm film 70 that fits at a position corresponding to. The three basic curved protrusions 76 on the bottom side of the mating diaphragm membrane 70 are on the upper side of the pump head body 60 relative to the pump head body 60 and mating diaphragm membrane 70 assembly (as shown in FIG. 22). It is completely inserted into the corresponding three basic curved grooves 65.

  FIG. 23, FIG. 24 and FIG. 13 are explanatory diagrams of actual operation results in the first exemplary embodiment of the vibration reducing method of the pressure-feeding diaphragm pump having the vibration reducing unit newly devised according to the present invention. Compared to the operation of a conventional pumping diaphragm pump in which the moment arm L1 extends from the sealing projection rim 71 to the periphery of the annular positioning projection 75 (as shown in FIGS. 13 and 24) of the illustrated embodiment. The moment arm L2 extends from the basic curved convex portion 76 to the periphery of the annular positioning convex portion 75 (as shown in FIG. 24). As a result, the length L2 of the moment arm is shorter than the length L1 of the moment arm, and the torque generated as a result of multiplying the acting force F by the length of the moment arm is that of the conventional pressure-feeding diaphragm pump. Smaller. With the reduced torque of the present invention, the vibration strength is substantially reduced. According to the pilot test on the sample of the present invention, the vibration strength was only one-tenth (10%) of the vibration strength in the conventional pumping diaphragm pump. When the present invention is installed on a casing C of a reverse osmosis purification unit supported by a conventional cushion base 100 having a rubber shock absorber 102 (shown in FIG. 14) as a pillow, resonance in a conventional pressure-feeding diaphragm pump The unpleasant noise caused by the swinging can be completely eliminated.

  Each basic curved groove 65 in the first exemplary embodiment can be replaced with a curved slot (not shown). Further, the basic curved groove 65 and the diaphragm film in the pump head main body 60 are not affected by the corresponding basic curved convex portions 76 in the basic curved groove 65 and the diaphragm film 70 in the pump head main body 60 without affecting the respective fitting states. The corresponding basic curved groove 76 at 70 can be replaced.

  FIGS. 25 to 31 are explanatory views of a second exemplary embodiment of a vibration reducing method for a pressure-feeding diaphragm pump having a newly devised vibration reducing unit of the present invention. Here, the pump head main body operating fastener 600 and the mating diaphragm membrane operating fastener 700 of the vibration reduction unit are respectively a basic curved groove 65 paired with an outer second curved groove 66 and an outer second curved convex. And a corresponding basic curved convex portion 76 paired with the portion 77. The outer second curved groove 66 is further circumferentially disposed around each existing foundation curved groove 65 in the pump head body 60 (as shown in FIGS. 25-27) to provide the outer second curved groove 66. The curved protrusion 77 is further formed in the diaphragm film 70 that fits at a position corresponding to the position of the respective second curved groove 66 that fits in the pump head body 60 (as shown in FIGS. 29 and 30). Each of the existing curved convex portions 76 is disposed in the circumferential direction. The basic curved convex portion 76 and the outer second curved convex portion 77 which are paired on the bottom side of the diaphragm membrane 70 to be fitted are formed on the pump head main body 60 and the diaphragm membrane 70 to be fitted (as shown in FIG. 31). Fully inserted into the corresponding paired basic curved groove 65 and outer second curved groove 66 on the upper side of the pump head body 60 with respect to the assembly. The newly devised vibration reduction unit not only has a considerable effect in reducing vibrations, but also increases the resistance of the eccentric disk 52 to displacement due to the acting force F.

  Each basic curved groove 65 and the outer second curved groove 66 in the second exemplary embodiment may be replaced with curved slots (not shown). Further, the foundation curved groove 65 paired with the second outer curved groove 66 in the pump head body 60 and the corresponding foundation paired with the second outer curved projection 77 in the diaphragm membrane 70 to be fitted. The curved convex portions 76 are paired with the second curved convex portions 66 on the outer side of the pump head main body 60 without affecting the fitting state of the curved convex portions 76, and the diaphragm membrane 70 is fitted. It can be replaced with the corresponding basic curved groove 76 paired with the second curved groove 77 on the outer side.

  FIGS. 32 to 38 are explanatory views of a third exemplary embodiment of the vibration reducing method of the pressure-feeding diaphragm pump having the vibration reducing unit newly devised according to the present invention. Here, the pump head main body operating fastener 600 and the mating diaphragm membrane operating fastener 700 of the vibration reduction unit are the basic recess ring 601 and the corresponding basic protruding ring 701, respectively. The foundation recess ring 601 is disposed circumferentially around the upper side of each through hole 61 in the pump head body 60 (as shown in FIGS. 32 and 34), and the foundation protrusion ring 701 is (see FIGS. 36 and 36). 37, as shown in FIG. 37, are disposed in the circumferential direction on the bottom surface side of each eccentric annular positioning projection 75 in the diaphragm membrane 70 that fits at a position corresponding to the position of each fitting base recess ring 601 in the pump head body 60. . Three base protruding rings 701 on the bottom side of the mating diaphragm membrane 70 correspond to the pump head body 60 and the mating diaphragm membrane 70 assembly on the upper side of the pump head body 60 (as shown in FIG. 38). The three basic dent rings 601 are fully inserted. The effect in reducing vibrations is substantially enhanced by a vibration reduction unit that enhances the stability between the foundation recess ring 601 and the mating foundation projection ring 701.

  Each base indentation ring 601 in the third exemplary embodiment can be replaced with a throttling (not shown). Further, the base recess ring 601 in the pump head body 60 and the corresponding base protrusion ring 701 in the mating diaphragm membrane 70 can be connected to the base protrusion ring 601 in the pump head body 60 without affecting the fitting state thereof. Alternatively, it can be replaced with a corresponding base indentation ring 701 in the mating diaphragm membrane 70.

  39 to 44 are explanatory views of a fourth exemplary embodiment of a vibration reducing method for a pressure-feeding diaphragm pump having a vibration reducing unit newly devised according to the present invention. Here, the pump head main body operating fastener 600 and the fitting diaphragm membrane operating fastener 700 of the vibration reduction unit are a plurality of circumferentially indented regions 602 and a plurality of circumferentially projecting curved regions 702. A plurality of circumferentially located curved indented regions 602 are circumferentially disposed around the top of each through hole 61 in the pump head body 60 (as shown in FIGS. 39 and 41), and The curved projecting region 702 located at the position fits in a position corresponding to the respective position of the plurality of circumferentially located curved recessed regions 602 that fit in the pump head body 60 (as shown in FIGS. 43 and 44). The diaphragm film 70 is disposed on the bottom surface side of each concentric annular positioning convex portion 75 in the circumferential direction. The curved projecting region 702 located in the circumferential direction on the bottom surface side of the fitted diaphragm membrane 70 is located in the corresponding circumferential direction on the upper side of the pump head body 60 with respect to the assembly of the pump head body 60 and the fitted diaphragm membrane 70. Fully inserted into the curved indentation region 602, thereby substantially enhancing the effect in reducing vibrations. Circumferentially located indented regions 602 are either circumferentially located round holes 603 (shown in FIGS. 45 and 47) or angularly located holes 604 (shown in FIGS. 51 and 53). Can be replaced with a corresponding circumferentially located curved projection region 702 located in the circumferential direction (shown in FIG. 50) or in the circumferential direction (shown in FIG. 56). All of these aforementioned equivalents can have the same effect in reducing vibrations, which can be accommodated by the angular protrusions 704.

  Moreover, each group of circumferentially recessed regions 602 located in the circumferential direction in the fourth exemplary embodiment can be replaced with a group of curved slot regions (not shown) located in the circumferential direction. In addition, the curved protrusion region 602 in the pump head body 60 and the corresponding curved protrusion region 702 in the fitting diaphragm film 70 are not affected by the fitting state, and the curved protrusion region 602 in the pump head body 60 is not affected. And it can replace the corresponding curved indentation region 702 in the mating diaphragm membrane 70. Similarly, each group of round holes 603 and square holes 604 positioned in the circumferential direction can be replaced with a group of round holes and square holes (not shown) positioned in the circumferential direction. Further, the round hole 603 in the pump head main body 60 and the corresponding round convex portion 703 in the fitting diaphragm film 70 are not affected by the fitting state of the round convex portion 603 in the pump head main body 60, and Can replace the corresponding round holes 703 in the mating diaphragm membrane 70 and the square holes 604 in the pump head body 60 and the corresponding angular projections 704 in the mating diaphragm membrane 70 as well as their mating. Without affecting the state, the angular protrusions 604 in the pump head body 60 and the corresponding square holes 704 in the diaphragm membrane 70 to be fitted can be replaced.

  57 to 59 are explanatory views of a fifth exemplary embodiment of a vibration reducing method for a pressure-feeding diaphragm pump having a vibration reducing unit newly devised according to the present invention. Here, the pump head body actuating fastener 600 and the mating diaphragm membrane actuating fastener 700 of the vibration reduction unit are respectively a base indentation ring 601 paired with an outer second indentation ring 605 and an outer second projection. A corresponding base protruding ring 701 paired with the ring 705. An outer second indentation ring 605 is disposed circumferentially around each base indentation ring 601 in the pump head body 60 (as shown in FIG. 57), and the outer second indentation ring 705 is ( As shown in FIG. 58, the pump head body 60 is arranged circumferentially around each base protruding ring 701 in the diaphragm membrane 70 at a position corresponding to the position of the second recessed ring 605 on the outer side. Established. The base projecting ring 701 and the outer second projecting ring 705 paired on the bottom side of the mating diaphragm membrane 70 are coupled to the pump head body 60 and mating diaphragm membrane 70 assembly (as shown in FIG. 59). On the other hand, it is completely inserted into the corresponding paired basic recess ring 601 on the upper side of the pump head body 60 and the outer second recess ring 605. The newly devised vibration reduction unit not only has a considerable effect in reducing vibrations, but also increases the resistance of the eccentric disk 52 to displacement due to the acting force F.

  Each base indentation ring 601 and outer second indentation ring 605 in the fifth exemplary embodiment can also be replaced with a throttling (not shown). In addition, the base recess ring 601 paired with the outer second recess ring 605 in the pump head body 60 and the corresponding base protrusion paired with the outer second protrusion ring 705 in the mating diaphragm membrane 70. The ring 701 does not affect the fitting state of the ring, and the pair of the basic protruding ring 601 and the outer second protruding ring 605 in the pump head body 60 and the basic hollow ring 701 in the diaphragm membrane 70 to be fitted. And a corresponding pair of outer second indentation rings 705 can be substituted.

  Based on the foregoing disclosure, it is clear that the present invention substantially realizes the vibration reducing effect in the pressure-feeding diaphragm pump by a simple vibration reducing unit without increasing the overall cost. The present invention reliably solves all the problems associated with unpleasant noise and resonant oscillations resulting from vibrations in conventional pumping diaphragm pumps, thereby providing beneficial industrial applicability.

Claims (23)

A motor, a pump head main body fixed to the motor housing, an eccentric disk mounting base fixed on the lower side of the pump head main body, and a plurality of eccentric disks extending through operation holes in the pump head main body, A diaphragm membrane fixed to the eccentric disk through an operating hole and placed on the upper side of the pump head body, and a plurality of pumping pistons arranged to move by a pumping action with respect to the movement of the diaphragm membrane ; A vibration reducing method for a pressure-feeding diaphragm pump having:
The diaphragm film fits on the bottom surface side of the diaphragm film so as to correspond to three annular positioning convex parts inserted into the three annular positioning concave parts of the eccentric disk and a basic curved concave part provided in the pump head body. As described above, by providing a basic curved convex portion disposed in the circumferential direction around the annular positioning convex portion and disposing the vibration reducing unit between the pump head body and the diaphragm film , the eccentricity moment arm generated by the rotation movement the action of the eccentric disc in the disc mount is the result from the base curved protrusion and length to the periphery of said annular positioning projection, to reduce the torque of the piston action section in the diaphragm layer The step of effectively reducing the vibration intensity of the pressure-feeding diaphragm pump, wherein the vibration reduction unit The mated vibration reduction structure pair includes a pump head body vibration reduction structure disposed above the pump head body, and the pump head on the pump head body. A diaphragm membrane vibration reducing structure fitted on the bottom surface side of the diaphragm membrane at a position corresponding to the position of the body vibration reducing structure, and the pump head body vibration reducing structure and the diaphragm membrane vibration reducing structure are fitted to each other. Combined, establishing a position of one end of the moment arm at the position of the mating vibration reducing structure;
The motor is mounted with a wobble plate having an output shaft and an integral protruding cam lobe shaft, the eccentric disk mounting base and the pump head body, and the eccentric disk mounting base rotates the integral protruding cam lobe shaft of the wobble plate. A plurality of eccentric disks are uniformly and circumferentially positioned on the eccentric disk mounting base, each of the plurality of eccentric disks includes a tightening hole formed therein, and the pump head body includes a plurality of pump head bodies. And each through hole has an inner diameter slightly larger than the outer diameter of each eccentric disk on the eccentric disk mounting base for receiving each eccentric disk, and the diaphragm membrane Includes a plurality of evenly spaced radial projection partitioning ribs so that the diaphragm membrane is a piston valve assembly. When attached to the periphery to seal against the assembly, a plurality of equivalent piston working sections are formed and partitioned by the radial projection partition ribs so that each piston working section is respectively in the eccentric disk mount. A central through hole is provided at a position corresponding to the position of each tightening hole, and when the motor is turned on, the wobble plate is rotated by the motor output shaft, thereby the plurality of the plurality of on the eccentric disk mount. The eccentric disk continuously moves with a constant up and down reciprocating stroke, while the plurality of pumping pistons and piston operating sections in the diaphragm membrane are driven by the up and down reciprocating stroke of the eccentric disk to move up and down. Displaced by displacement, thereby flowing into the piston valve assembly The running water is compressed into pressurized water, the pressurized water is continuously discharged from the pumping diaphragm pump and further RO filtered by a RO (reverse osmosis) cartridge for use in a reverse osmosis water purification system. A vibration reducing method for a pressure-feeding diaphragm pump having a vibration reducing structure. 2. The vibration reduction method according to claim 1, wherein each of the pump head main body vibration reducing structures is a curved groove in the pump head main body, and each of the diaphragm membrane vibration reducing structures is a curved convex portion extending from the diaphragm membrane . 2. The vibration reduction method according to claim 1, wherein each of the pump head main body vibration reducing structures is a curved slot in the pump head main body, and each of the diaphragm membrane vibration reducing structures is a curved convex portion extending from the diaphragm membrane . Each of the pump head main body vibration reduction structures is a curved set of openings in the pump head main body, and each of the diaphragm membrane vibration reduction structures is a curved set of convex portions extending from the diaphragm membrane. The vibration reduction method as described. 2. The vibration reduction method according to claim 1, wherein each of the pump head main body vibration reducing structures is a curved convex portion extending from the pump head main body, and each of the diaphragm membrane vibration reducing structures is a curved groove in the diaphragm membrane . 2. The vibration reduction method according to claim 1, wherein each of the pump head main body vibration reducing structures is a curved convex portion extending from the pump head main body, and each of the diaphragm film reducing structures is a curved slot in the diaphragm film . Each of the pump head main body vibration reducing structures is a curved set of convex portions extending from the pump head main body, and each of the diaphragm membrane vibration reducing structures is a curved set of openings in the diaphragm membrane . The vibration reduction method as described.   The vibration reducing method according to claim 7, wherein the convex portion is a round convex portion.   The vibration reducing method according to claim 7, wherein the convex portion is an angular convex portion. 2. Each of the pump head main body vibration reducing structures is a pair of curved grooves or slots in the pump head main body, and each of the diaphragm membrane vibration reducing structures is a pair of curved convex portions extending from the diaphragm membrane. Vibration reduction method. 2. The vibration according to claim 1, wherein each of the pump head main body vibration reducing structures is a curved convex portion extending from the pump head main body, and each of the diaphragm membrane vibration reducing structures is a pair of curved grooves or slots in the diaphragm membrane . Reduction method.   The vibration reducing method according to claim 11, wherein the convex portion is a round convex portion. The convex portion is the angular convex portions, the vibration reducing method according to claim 11. 2. The vibration reduction method according to claim 1, wherein each of the pump head main body vibration reducing structures is a hollow ring in the pump head main body, and each of the diaphragm film vibration reducing structures is a ring structure protruding from the diaphragm film . Dynamic reduction structure vibration each said pump head the body is a pair of ring recesses in the pump head body, each of said diaphragm membrane vibration reduction structure is a pair of ring structures projecting from the diaphragm film, vibration of claim 1 Reduction method.   Each of the eccentric disks further includes an annular groove extending around the clamping hole, and the pump head body further extends into each annular groove when the pump head body is clamped against the eccentric disk. The vibration reducing method according to claim 1, comprising a plurality of lower annular flanges. At least one of said projections rim of the diaphragm membrane is an internal protrusion rim, the diaphragm layer includes a parallel external projections rim, the piston valve assembly includes a protrusion rim extending downwardly, the lower of the piston valve assembly projection rim extending decompresses between said inner protrusion rim of the diaphragm layer and the external protrusion rim, when the diaphragm membrane is mounted on the periphery of the piston valve assembly, sealing the peripheral, wherein Item 2. The vibration reduction method according to Item 1.   2. The vibration reduction method according to claim 1, wherein the number of each of the eccentric disk, the operation hole in the pump head body, the piston action section, and the pumping piston is three.   The vibration reduction method according to claim 1, wherein the number of the inlet mounting bases in the circumferential direction is three.   The vibration reducing method according to claim 1, wherein the tightening hole in the eccentric disk is a threaded hole, and the tightening member is a screw.   The method of claim 1, wherein the cavity is formed by pressing a bottom of an annular rib ring of the pump head cover against a rim of a central outlet mount of the piston valve assembly.   The vibration reducing method according to claim 1, wherein the first stage motor is a brush motor.   The vibration reduction method according to claim 1, wherein the first-stage motor is a brushless motor.