JP6098666B2 - Round structure of 4 compression chamber diaphragm pump with multiple effects - Google Patents

Description

  The present invention relates to a small disk structure of a four-compression chamber diaphragm pump used in a reverse osmosis (RO) purification system of the type commonly installed in a home, recreational vehicle or mobile home water supply device, in particular the oblique pulling of the pump and The present invention relates to a compression diaphragm pump having an inclined upper ring that extends the service life of the four compression chamber diaphragm pump and the durability of key internal components by being able to eliminate the squeezing phenomenon.

  Conventional four-compression chamber diaphragm pumps are commonly used with reverse osmosis (RO) water purifiers or RO water purification systems of the type commonly installed in home, recreational vehicle or mobile home water supplies. Most of the four compression chamber diaphragm pumps are similar in design to the four compression chamber diaphragm pumps shown in FIGS. 1 to 10 in addition to the specific type disclosed in Patent Document 1. Can be classified as: a brushed motor 10 having an output shaft 11, a motor upper chassis 30, a swing plate 40 having an integral protruding cam lobe shaft, an eccentric small disk mount 50, a pump head body 60, A diaphragm membrane 70, four pumping pistons 80, a piston valve assembly 90 and a pump head cover 20 are included.

  The motor upper chassis 30 includes a bearing 31 through which the output shaft 11 of the motor 10 extends. The motor upper chassis 30 also includes an upper annular rib ring 32 that has a number of fastening bores 33 disposed circumferentially at equal intervals on its rim.

  The swing plate 40 includes a shaft coupling hole 41 through which the corresponding motor output shaft 11 of the motor 10 extends.

  The eccentric small disk mount 50 includes a central bearing 51 at its bottom for receiving the corresponding swing plate 40. Four cylindrical small eccentric discs 52 are arranged on the eccentric small disc mount 50 at equal intervals in the circumferential direction. Each cylindrical eccentric disc 52 is formed at the intersection of a horizontal upper surface 53, a bore 54 with a female thread, an annular positioning groove 55 formed on the upper surface, and a horizontal upper surface 53 and a vertical side surface 56. With a rounded shoulder 57.

  The pump head main body 60 covers the upper annular rib ring 32 of the motor upper chassis 30, surrounds the swing plate 40 and the eccentric small disk mount 50 inside, and has four operation holes 61 arranged in the circumferential direction at equal intervals inside. including. Each operation hole 61 has an inner diameter slightly larger than the outer diameter of the corresponding cylindrical eccentric disk 52 of the eccentric small disk mount 50 in order to receive the corresponding cylindrical eccentric disk 52 respectively. A lower annular flange 62 that fits into a corresponding upper annular rib ring 32 of the motor upper chassis 30 is formed thereunder, and several fastening bores 63 are arranged around the outer periphery of the pump head body 60 at equal intervals.

  A diaphragm membrane 70 extruded from a semi-rigid elastic material and disposed on the pump head body 60 has a pair of parallel rims including an outer raised rim 71 and an inner raised rim 72 and four equally spaced diameters. Partition ribs 73 bulging in the direction, each end of the radially bulging partition rib 73 connected to the inner bulge rim 72 and thereby being divided by four equal piston action partitioned by the radially bulging partition rib 73 It includes a radially raised partitioning rib 73 arranged to form a zone 74. Each piston working zone 74 has a working zone hole 75 formed therein corresponding to each internally threaded bore 54 of the cylindrical eccentric disc 52 of the eccentric disc mount 50 (FIG. 8). And as shown in FIG. 9, an annular positioning projection 76 of the hole 75 in each working zone is formed on the bottom surface of the diaphragm membrane 70.

  Each pumping piston 80 is disposed in a corresponding one of the corresponding piston working zones 74 of the diaphragm membrane 70 and has a stepped hole 81 therethrough. After each of the annular positioning protrusions 76 of the diaphragm membrane 70 is inserted into the corresponding annular positioning groove 55 of the cylindrical eccentric small disk 52 of the eccentric small disk mount 50, each fastening screw 1 is attached to each pumping piston 80. The diaphragm membrane 70 and the four pumping pistons 80 are inserted (in the enlarged portion of FIG. 10) by being inserted into the stepped holes 81 and the hole 75 of each corresponding piston action zone 74 of the diaphragm membrane 70. As can be seen, the corresponding four cylindrical eccentric discs 52 of the eccentric disc mount 50 can be securely screwed into the bores 54 in which the female threads are cut.

  The piston valve assembly 90 covers the diaphragm membrane 70 and extends downwardly between the outer raised rim 71 and the inner raised rim 72 of the diaphragm membrane 70, and a plurality of equally spaced circumferential rims. A central dish-shaped circular outlet mount 92 with a central positioning bore 93 having four equal sectors including an outlet port 95 located at the center. The piston valve assembly 90 also includes a T-shaped plastic check valve 94 having a central locating shank and four circumferentially adjacent inlet mounts 96. Each circumferentially adjacent inlet mount 96 includes a plurality of equally spaced circumferentially located inlet ports 97 and inverted central piston disks 98, whereby each piston disk 98 is associated with each of the plurality of inlet ports 97. Acts as a corresponding group of valves. The central positioning shank of the plastic check valve 94 fits into the central positioning bore 93 of the central outlet mount 92 such that the plurality of outlet ports 95 of the central circular outlet mount 92 communicate with the four inlet mounts 96. Match. Finally, an airtight pre-compression chamber 26 (as shown in the enlarged portion of FIG. 10) causes the raised rim 91 to extend downward through the gap between the outer raised rim 71 and the inner raised rim 72 of the diaphragm membrane 70. When inserted into the ring, it is formed between each inlet mount 96 and the corresponding pistoning zone 74 of the diaphragm membrane 70 so that one end of each precompression chamber 26 communicates with each of the corresponding inlet ports 97.

  The pump head cover 20 covering the pump head body 60 and surrounding the piston valve assembly 90, the pumping piston 80 and the diaphragm membrane 70 includes a water inlet orifice 21, a water outlet orifice 22 and several fastening bores 23. A stepped rim 24 and an annular rib ring 25 (as shown in the enlarged portion of FIG. 11) are located at the bottom within the pump head cover 20, thereby assembling the diaphragm membrane 70 and piston valve assembly 90. The outer rim can be airtightly attached to the stepped rim 24. When the bottom of the annular rib ring 25 closely covers the rim of the central outlet mount 92 (as shown in FIG. 10), the high compression chamber 27 is formed with a cavity and piston formed by the inner wall of the annular rib ring 25. Formed between the central outlet mount 92 of the valve assembly 90.

  Each fastening bolt 2 is extended through the corresponding fastening bore 23 of the pump head cover 20 and the corresponding fastening bore 63 of the pump head main body 60, and then the nut 3 is fitted to each fastening bolt 2, By securely screwing the pump head cover 20 into the pump head body 60 via the corresponding fastening bore 33, the overall assembly of the four compression chamber diaphragm pump (as shown in FIGS. 1 and 10) is achieved. Complete.

  Please refer to FIG. 11 and FIG. 12, which are diagrams showing the operation of the conventional four-compression chamber diaphragm pump of FIGS.

  First, when the motor 10 is turned on, the swinging plate 40 is rotationally driven by the motor output shaft 11, so that the four cylindrical eccentric small disks 52 of the eccentric small disk mount 50 reciprocate up and down sequentially. Move constantly in the process.

  Secondly, in the meantime, the four piston operating zones 74 of the four pumping pistons 80 and the diaphragm membrane 70 are sequentially driven by the upper and lower reciprocating strokes of the four cylindrical small eccentric discs 52 and moved by the upper and lower displacements.

  Third, when the cylindrical eccentric small disk 52 moves in the downward stroke and displaces the pumping piston 80 and the piston action zone 74 downward, the piston disk 98 of the piston valve assembly 90 is pushed and opened. Therefore, the tap water W (as indicated by the arrows extending from W in the enlarged view of FIG. 11) is reserved via the water inlet orifice 21 of the pump head cover 20 and the inlet port 97 of the piston valve assembly 90. Can flow into the compression chamber 26;

  Fourth, when the cylindrical eccentric small disk 52 moves in the upward stroke and displaces the pumping piston 80 and the piston action zone 74 upward, the piston disk 96 of the piston valve assembly 90 is pulled and closed. The tap water W in the preliminary compression chamber 26 is compressed, and the internal water pressure is increased to a range of 100 psi to 150 psi. The resulting pressurized water Wp pushes the plastic check valve 94 of the piston valve assembly 90 into the open state.

  Fifth, when the plastic check valve 94 of the piston valve assembly 90 is pushed into the open state (as indicated by the arrow W in the enlarged portion of FIG. 12), the pressure inside the precompression chamber 26 is increased. Pressurized water Wp is directed into the high compression chamber 27 through a group of outlet ports 95 in the corresponding sector of the central outlet mount 92 and then pushed out of the water outlet orifice 22 of the pump head cover 20.

  Finally, due to the sequential repetitive action of each group of four sector outlet ports 95 of the central outlet mount 92, pressurized water Wp is continually discharged from the conventional four-compression chamber diaphragm pump and further RO by the RO cartridge. Because it is filtered, the final filtered pressurized water Wp can be used in RO water purifiers or RO water purification systems that are typically installed in water supplies in homes, recreational vehicles, or mobile homes.

  Referring to FIGS. 13 and 14, the conventional four compression chamber diaphragm pump has a long-standing drawback associated with significant vibration. As described above, when the motor 10 is turned on, the oscillating plate 40 is rotationally driven by the motor output shaft 11, so that the four cylindrical eccentric small discs 52 of the eccentric small disc mount 50 are moved up and down sequentially. The four piston working zones 74 of the diaphragm membrane 70 are sequentially driven by the upper and lower reciprocating strokes of the four cylindrical eccentric discs 52 and moved by being displaced up and down. It continuously acts on the bottom surface of the piston working zone 74.

  Meanwhile, as shown in FIG. 14, a plurality of corresponding repulsive forces Fs are generated in response to the acting force F applied to the bottom surface of the diaphragm film 70, and different components are applied to the corresponding piston action zones of the diaphragm film 70. By being distributed over the bottom region of 74, a pressing phenomenon caused by the repulsive force Fs occurs in the section of the diaphragm film 70.

  As shown in FIG. 18, in the pressing phenomenon, the maximum component force among the components in which the repulsive force Fs is dispersed is applied to the diaphragm film 70 and the horizontal upper surface 53 of the cylindrical eccentric small disk 52. This occurs because it joins the bottom position P where the rounded shoulder 57 contacts, thereby maximizing the pressing phenomenon of the bottom position P.

  When the rotational speed of the motor output shaft 11 of the motor 10 reaches the range of 800 rpm to 1200 rpm, each bottom position P of the piston action zone 74 of the diaphragm film 70 is subjected to a pressing phenomenon at a frequency of 4 times per second. Under such circumstances, the bottom position P of the diaphragm membrane 70 is always the first break position of the overall conventional 4-compression chamber diaphragm pump, which not only shortens the service life but also reduces the conventional 4-compression. It is also the root cause of the termination of the normal function of the chamber diaphragm pump.

  Therefore, a method of greatly reducing the drawbacks related to the pressing phenomenon caused by the force F being constantly applied to the bottom surface of each piston action zone 74 of the diaphragm membrane 70 as a result of the movement of the cylindrical eccentric small disk 52, It has become an urgent important issue.

US Pat. No. 6,840,745

  An object of the present invention is a small disk structure of a four-compression-chamber diaphragm pump, which is a cylindrical or inverted truncated cone eccentric disk disposed in an eccentric small disk mount, the small disk having an annular positioning groove, Including a vertical or inverted frustoconical side surface and an annular upper surface portion inclined with respect to a horizontal plane to form an inclined upper ring between the annular positioning groove and the vertical or inverted frustoconical side surface It is to provide a disk structure.

  Due to the inclined upper ring, the high frequency oblique pulling and pressing phenomenon that occurs in conventional cylindrical eccentric discs is because the inclined upper ring adheres flatly to the bottom region of the corresponding piston working zone of the diaphragm membrane, Completely eliminated.

  Therefore, not only the durability of the diaphragm membrane is improved so as to better withstand the frequent high-frequency pumping action of the eccentric small disk, but the service life of the diaphragm membrane is also greatly extended.

  Another object of the present invention is an eccentric small disk structure of a four compression chamber diaphragm pump, which is a cylindrical or inverted truncated cone eccentric disk disposed in an eccentric small disk mount, An eccentric small disk structure comprising an annular positioning groove, a vertical or inverted frustoconical side surface, and an inclined upper ring formed between the annular positioning groove and the vertical or inverted frustoconical side surface That is.

  In this case as well, all the dispersed components of the repulsive force of the cylindrical eccentric disk produced by the inclined upper ring in response to the acting force generated by the pumping action are Since it adheres flatly to the bottom region of the corresponding piston working zone of the diaphragm membrane, it is greatly reduced.

In achieving the above objects, which are not intended to limit the scope of the present invention, at least the following advantages are obtained:
1. The durability of the diaphragm membrane for sustaining the high frequency pumping action of the cylindrical or inverted truncated cone disk is greatly enhanced.
2.4 The power consumption of the compression chamber diaphragm pump is greatly reduced because less current is wasted as a result of the frequent pressing phenomenon described above.
3.4 The working temperature of the compression chamber diaphragm pump is greatly reduced due to less power consumption.
4). Most of the unpleasant noise of the bearings resulting from the deteriorated lubricant in the four compression chamber diaphragm pump, which accelerates quickly with high working temperatures, is eliminated.

It is a perspective assembly drawing of the conventional 4 compression chamber diaphragm pump. It is a perspective exploded view of the conventional 4 compression chamber diaphragm pump. It is a perspective view of the eccentric small disk mount of the conventional 4 compression chamber diaphragm pump. It is sectional drawing taken with respect to sectional line 4-4 of said FIG. It is a perspective view of the pump head main body of the conventional 4 compression chamber diaphragm pump. It is sectional drawing taken with respect to sectional line 6-6 of said FIG. It is a perspective view of the diaphragm membrane of the conventional 4 compression chamber diaphragm pump. It is sectional drawing taken with respect to sectional line 8-8 of said FIG. It is a bottom view of the diaphragm membrane of the conventional 4 compression chamber diaphragm pump. It is sectional drawing taken with respect to sectional line 10-10 of said FIG. It is a figure which shows the 1st operation | movement of the conventional 4 compression chamber diaphragm pump. It is a figure which shows the 2nd operation | movement of the conventional 4 compression chamber diaphragm pump. It is a figure which shows the 3rd operation | movement of the conventional 4 compression chamber diaphragm pump. It is the elements on larger scale taken from the circled part a of said FIG. 1 is an exploded perspective view of a first exemplary embodiment of the present invention. FIG. 1 is a perspective view of an eccentric disc mount in a first exemplary embodiment of the present invention. FIG. It is sectional drawing taken with respect to said sectional line 17-17 of FIG. 1 is a cross-sectional view of an assembled state of a first exemplary embodiment of the present invention. FIG. FIG. 6 illustrates the operation of the first exemplary embodiment of the present invention. It is the elements on larger scale taken from the circled part a of said FIG. The figure which shows the comparison with the cylindrical eccentric small disk which acts on the diaphragm membrane of the conventional 4 compression chamber diaphragm pump, and the cylindrical eccentric small disk which acts on the diaphragm membrane of the 1st exemplary embodiment of this invention. It is. FIG. 6 is a perspective view of an eccentric disc mount in a second exemplary embodiment of the present invention. It is sectional drawing taken with respect to sectional line 23-23 of said FIG. FIG. 6 is an assembled cross-sectional view of a second exemplary embodiment of the present invention. FIG. 6 illustrates the operation of the second exemplary embodiment of the present invention. It is the elements on larger scale taken from the circled part a of said FIG. Comparison between a cylindrical eccentric small disk acting on the diaphragm membrane of a conventional four-compression chamber diaphragm pump and a cylindrical eccentric small disk acting on the diaphragm membrane of the present invention in the second exemplary embodiment of the present invention. FIG. FIG. 6 is a perspective exploded view of a third exemplary embodiment of the present invention. It is sectional drawing taken with respect to sectional line 29-29 of said FIG. FIG. 6 is a perspective assembly view of a third exemplary embodiment of the present invention. It is sectional drawing taken with respect to sectional line 31-31 of said FIG. FIG. 6 is an assembled cross-sectional view of a third exemplary embodiment of the present invention. FIG. 6 illustrates the operation of a third exemplary embodiment of the present invention. It is the elements on larger scale taken from the circled part a of said FIG. Comparison between a cylindrical eccentric small disk acting on the diaphragm membrane of a conventional four-compression chamber diaphragm pump and a cylindrical eccentric small disk acting on the diaphragm membrane of the present invention in the third exemplary embodiment of the present invention FIG.

  15 to 18 are views showing a small disk structure of a four-compression-chamber diaphragm pump according to the first exemplary embodiment of the present invention.

  The small disk structure is a cylindrical eccentric small disk 52 attached to the eccentric small disk mount 50. The cylindrical eccentric disc includes an annular upper surface portion that is inclined with respect to a horizontal plane so as to form an inclined upper ring 58 between the annular positioning groove 55 and the vertical side surface 56, and the inclined upper ring 58 is eccentric. It replaces the conventional rounded shoulder 57 of each cylindrical eccentric small disk 52 of the small disk mount 50.

  FIGS. 19-21 is a figure which shows operation | movement of the small disc structure of a 4 compression chamber diaphragm pump in the 1st exemplary embodiment of this invention.

  First, when the motor 10 is turned on, the swinging plate 40 is rotationally driven by the motor output shaft 11, so that the four cylindrical eccentric small discs 52 of the eccentric small disc mount 50 are sequentially moved up and down. Move constantly in the process.

  Secondly, the four piston action zones 74 of the diaphragm membrane 70 are sequentially driven by the up and down reciprocation strokes of the four cylindrical small eccentric discs 52 and moved by the up and down displacement.

  Third, when the cylindrical eccentric small disk or the cylindrical eccentric small disk 52 moves in the upward stroke and the piston action zone 74 is displaced upward, the acting force F is applied to the corresponding ring of the diaphragm film 70. A partial portion between the positioning protrusion 76 and the outer raised rim 71 is pulled obliquely.

  By comparing the operation of the conventional cylindrical eccentric small disk 52 shown in FIG. 14 with the operation of the cylindrical eccentric small disk 52 of the present invention as shown in FIG. The two differences are obvious:

  In the case of the conventional cylindrical eccentric small disk 52 shown in FIG. 14, the largest component Fs in which the repulsive force is dispersed is the force of the component applied to the bottom position P where the diaphragm film 70 contacts. In addition, since the bottom position P is located at the edge of the rounded shoulder 57 of the horizontal upper surface 53 of the cylindrical eccentric small disk 52, the “pressing phenomenon” at the point P is also maximized. In the case of such nonlinear dispersion of the “push phenomenon”, the action of pulling diagonally becomes serious. In contrast, in the case of a cylindrical eccentric disc 52 as shown in FIG. 20, the dispersion of the repulsive force Fs component is such that the inner inclined top ring 58 is the bottom of the piston working zone 74 of the diaphragm membrane 70. Because it adheres flat to the region, it is more linear, thereby substantially eliminating the oblique pulling action due to the reduction of the pressing phenomenon.

  Furthermore, since the repulsive force Fs is inversely proportional to the contact area under the same acting force F, the repulsive force Fs of the cylindrical eccentric small disk 52 of the present invention as shown in FIG. 20 is dispersed. The size of the component is significantly smaller than the size of the component in which the repulsive force Fs of the conventional cylindrical eccentric small disk 52 shown in FIG. 14 is dispersed.

  The improved dispersion linearity and the reduced magnitude of the repulsive force component Fs result in the formation of an inclined upper ring 58 between the annular positioning groove 55 and the vertical side surface 56 of the eccentric disc mount 50. In addition, it provides at least the following two advantages. First, the improved force component distribution is the high frequency pressing that occurs in conventional configurations as a result of the rounded shoulder 57 of the horizontal upper surface 53 in other cases of the cylindrical eccentric disc 52. Eliminates the fragility of the diaphragm film 70 caused by the phenomenon. Second, in order to reduce the magnitude of the repulsive force component, the four piston actions in the diaphragm membrane 70 driven by the up and down reciprocation strokes of the four cylindrical eccentric small disks or the cylindrical eccentric small disk 52. The overall repulsive force Fs of the diaphragm film 70 generated by the force F acting during the sequential vertical displacement of the zone 74 is greatly reduced.

These benefits result in the following actual benefits:
1. The durability of the diaphragm membrane 70 for maintaining the high-frequency pumping action of the cylindrical eccentric small disk 52 is greatly enhanced.
2.4 The power consumption of the compression chamber diaphragm pump is greatly reduced because less current is wasted as a result of the high frequency pressing phenomenon.
3.4 The working temperature of the compression chamber diaphragm pump is greatly reduced due to the lower power consumption.
4). Most of the undesirable bearing noise caused by the deterioration of the lubricant in the four-compression chamber diaphragm pump, which is normally accelerated by high working temperatures, is eliminated.

The results of tests performed on the prototype of the present invention are as follows.
A. The service life of the tested diaphragm membrane 70 was more than doubled.
B. The reduction in current consumption exceeded 1 amp.
C. The working temperature dropped over 15 degrees Celsius.
D. The smoothness of the bearing was improved.

  Please refer to FIG. 22 to FIG. 24 which are diagrams showing a small disk structure of a four-compression chamber diaphragm pump in the second exemplary embodiment of the present invention. The small disk structure is an inverted truncated cone eccentric small disk 502 provided in the eccentric small disk mount 500 in this case as well.

  The frustoconical eccentric disc 502 includes an integral inverted frustoconical side 506 and an inclined upper ring 508, which increases the outer diameter of the frustoconical eccentric disc 502, but the operating hole of the pump head body 60. An inclined upper ring 508 that is still smaller than the inner diameter of 61 extends between the annular positioning groove 505 and the inverted frustoconical side 506.

  FIGS. 25 to 27 are views showing the operation of the “four compression chamber diaphragm pump small disk structure” in the second exemplary embodiment of the present invention.

  First, when the motor 10 is turned on, the oscillating plate 40 is rotationally driven by the motor output shaft 11, so that the four truncated cone eccentric disks 502 of the eccentric small disk mount 500 sequentially move up and down. Move constantly.

  Secondly, the four piston action zones 74 of the diaphragm membrane 70 are sequentially driven by the up and down reciprocation strokes of the four truncated cones and moved by up and down displacement.

  Third, when the corresponding piston action zone 74 is displaced upward as the frustoconical eccentric disc 502 in the present invention moves in the upward stroke, the acting force F is applied to the corresponding annular positioning protrusion of the diaphragm film 70. A partial portion between 76 and the outer raised rim 71 is pulled diagonally.

  As a result, the inclusion of the inclined upper ring 508 in the eccentric small disk mount 500 eliminates the breakage of the diaphragm film 70 caused by the high-frequency pressing phenomenon, and the repulsive force Fs of the diaphragm film 70 caused by the acting force F also increases. descend. Meanwhile, due to the inverted truncated cone side surface 506, the possibility of a collision between the truncated cone eccentric disk 502 and the operation hole 61 of the pump head body 60, even though the outer diameter of the truncated cone disk 502 is increased. Will be eliminated.

  Furthermore, under the same acting force F, the repulsive force Fs is inversely proportional to the contact area. The contact area between the inclined upper ring 508 and the bottom surface of the diaphragm membrane 70 (as shown by the wheel A shown in FIG. 27) due to the increased outer diameter of the inverted frustoconical eccentric disc 502 Therefore, all the dispersed components of the repulsive force Fs of the inverted truncated conical eccentric disc 502 of the present invention are further reduced.

The inverted frustoconical eccentric disc 502 of this embodiment of the invention thus provides at least some of the following advantages:
1. As a result of the inverted truncated cone disk 502, the durability of the diaphragm membrane 70 for sustaining the high frequency pumping action is greatly enhanced.
2.4 The power consumption of the compression chamber diaphragm pump is greatly reduced due to less current being wasted as a result of the high frequency pressing phenomenon.
3.4 The working temperature of the compression chamber diaphragm pump is greatly reduced due to less power consumption.
4). Most of the undesirable bearing noise that results from degraded lubricant in the four-compression chamber diaphragm pump, which is exacerbated by accelerated degradation due to high working temperatures, is eliminated.
5. The service life of the four-compression chamber diaphragm pump is further extended because all the dispersed components of the repulsive force Fs of the inverted truncated conical eccentric disc 502 of the present invention are reduced.

  FIGS. 28 to 31 are diagrams showing an eccentric small disk structure of the four compression chamber diaphragm pump in the third exemplary embodiment of the present invention, and the eccentric small disk structure is a combination in the eccentric small disk mount 500. FIG. It is an eccentric small disk 502. The combined eccentric small disk 502 includes a small disk mount 511 and an inverted truncated cone disk yoke 521 that are detachably separated, whereby the outer diameter of the truncated cone disk yoke 521 is increased, but the pump head body 60 is increased. It is still smaller than the inner diameter of the operation hole 61. In this embodiment, the small disk mount 511 includes two bottom layer bases having an inwardly facing crescent-shaped positioning surface 512 and a top layer protruding cylinder 513 having a central internally threaded bore 514. Has a layer. The inverted truncated cone disk yoke 521 is fitted in a sleeve shape over the corresponding small disk mount 511 and stacked as a three-layer integral hollow structure, an upper bore 523, an intermediate bore 524 and a lower bore 525, and an inverted And the inclined upper ring 526 extending from the upper bore 523 to the inverted truncated cone side 522, whereby the bore diameter of the upper bore 523 is larger than the outer diameter of the protruding cylinder 513. The bore diameter of the intermediate bore 524 is approximately equal to the outer diameter of the protruding cylinder 513, so that the bore diameter of the lower bore 525 is approximately equal to the outer diameter of the bottom layer base of the small disk mount 511, and the crescent moon is Engage with the corresponding face of the bore to prevent relative rotation of the small disk yoke 521 and the corresponding small disk mount 511. When the truncated cone disk yoke 521 is fitted in a sleeve shape over the small disk mount 511 (as shown in FIGS. 30 and 31), a positioning annular groove 515 is formed between the protruding cylinder 513 and the inner wall of the upper bore 523. Is formed.

  32 and 35 show a method of assembling the small disk structure of the four compression chamber diaphragm pump of the third exemplary embodiment of the present invention.

  First, the truncated cone disk yoke 521 is fitted so as to cover the small disk mount 511.

  Second, all four annular positioning protrusions 76 of the diaphragm membrane 70 are inserted into four corresponding positioning annular grooves 515 of the four combined eccentric small disks 502 of the eccentric small disk mount 500.

  Finally, each fastening screw 1 is inserted into the corresponding stepped hole 81 of the pumping piston 80 and the corresponding working zone hole 75 of the piston working zone 74 of the diaphragm membrane 70, and then the fastening screw 1 Are securely screwed into the four corresponding threaded bores 514 of the four small disk mounts 511 of the eccentric small disk mount 500 (as shown in FIG. 32) and the diaphragm membrane 70 and the four Assemble the pumping piston 80 firmly.

  FIGS. 33 and 34 illustrate the operation of the small disk structure described above of the four compression chamber diaphragm pump of the third exemplary embodiment of the present invention.

  First, when the motor 10 is turned on, the swinging plate 40 is rotationally driven by the motor output shaft 11, so that the four combined eccentric small discs 502 of the eccentric small disc mount 50 are sequentially moved in the up and down reciprocating stroke. Move constantly.

  Secondly, the four piston action zones 74 of the diaphragm membrane 70 are sequentially driven by the up and down reciprocation strokes of the four combined eccentric small discs 502 and moved by the up and down displacement.

  Third, when the combined eccentric small disk 502 in the present invention moves in the upward stroke and the piston action zone 74 is displaced upward, the acting force F is applied to the corresponding annular positioning protrusion 76 and the outer bulge of the diaphragm film 70. A partial portion between the rim 71 is pulled obliquely.

  As a result, the inclusion of an inclined upper ring 526 in the inverted truncated cone disk yoke 521 of the eccentric disk mount 500 causes a diaphragm caused by a high frequency pressing phenomenon (as shown in FIGS. 33 and 34). The ease of breakage of the membrane 70 is eliminated, and the repulsive force Fs of the diaphragm membrane 70 caused by the acting force F (as shown in FIG. 34) is also greatly reduced.

  Furthermore, under the same acting force F, the repulsive force Fs is inversely proportional to the contact area. The contact area between the inclined upper ring 508 and the bottom surface of the diaphragm membrane 70 (as shown by the wheel A shown in FIG. 35) due to the increased outer diameter of the inverted truncated cone disk 521. Therefore, all dispersed components of the repulsive force Fs of the inverted truncated cone disk yoke 521 of the present invention are further reduced.

The manufacture of the small disk structure of the four compression chamber diaphragm pump of the third exemplary embodiment of the present invention is as follows:
First, the small disk mount 511 and the eccentric small disk mount 500 are manufactured together as one piece.
Secondly, the truncated cone disk yoke 521 is manufactured independently as a separate entity.
Finally, the integral body of the truncated cone disk yoke 521 and the small disk mount 511 is assembled to the eccentric small disk mount 500 and becomes a combined entity, the assembly best shown in FIGS. The formed eccentric small disk 502 is formed.

  Thereby, the invention of the combination eccentric small disk 502 not only satisfies the requirements of mass production, but also reduces the overall manufacturing cost.

The eccentric small disk 502 having the truncated cone disk yoke 521 of the present invention provides at least some of the following advantages:
1. By including the inverted truncated cone disk yoke 521, the durability of the diaphragm membrane 70 for maintaining a high frequency pumping action is greatly enhanced.
2.4 The power consumption of the compression chamber diaphragm pump is greatly reduced because less current is wasted as a result of the high frequency pressing phenomenon.
3.4 The working temperature of the compression chamber diaphragm pump is greatly reduced due to the lower power consumption.
4.4 Most of the undesirable bearing noise resulting from degradation accelerated by the temperature of the lubricant in the compression chamber diaphragm pump is eliminated.
5. Since all the dispersed components of the repulsive force Fs of the inverted truncated cone disk yoke 521 of the present invention are further reduced, the service life of the four compression chamber diaphragm pump is further extended.
6). Since the present invention is suitable for mass production, the manufacturing cost of the four compression chamber diaphragm pump is reduced.

  Accordingly, the illustrated embodiment of the present invention, among other advantages, extends the service life of the diaphragm membrane 70, so that the service life of the four-compression chamber diaphragm pump can be doubled. Inverted truncated cone disk 502 or combined eccentric disk 502 is provided.

Claims (9)

4. A small disk structure of a four-compression chamber diaphragm pump, which is mounted on the small disk mount so as to extend through four operating holes of the pump head body, and a small disk mount positioned on the lower side of the pump head body The four compression chamber diaphragm pumps are fixed to the four eccentric small disks through the four operation holes, the motor having a motor housing to which the pump head body is fixed, and the four compression chamber diaphragm pumps. A diaphragm membrane positioned above the pump head body, and four pumping pistons configured to be moved by a pumping action when the diaphragm membrane moves; As a result, the small disk mount is swung by the rotation of the rocking plate by the motor, and the result As a result, the four eccentric small disks move up and down sequentially, and the eccentric small disk moves up and down, causing the four piston working zones of the diaphragm member and the four pumping pistons to move back and forth sequentially. The diaphragm membrane further includes four annular downwardly projecting positioning protrusions each configured to be inserted into a respective annular positioning groove on a respective upper surface of the eccentric disk .
Section of the upper surface of each eccentric small disc includes a respective said annular positioning grooves, in a horizontal plane so as to form an inclined upper ring between the vertical side or inverted truncated cone side surface of each of the eccentric small disc is inclined for,
The pump head body is fixed to the motor housing, and surrounds the swing plate and the eccentric small disk mount inside,
The diaphragm membrane is made of a semi-rigid elastic material and is disposed on the pump head body, the diaphragm membrane being spaced apart by at least one raised rim and a plurality of equally spaced connections to the at least one raised rim. A radially-raising partition rib to form the four piston working zones;
Each piston working zone has a hole in the working zone formed therein at a position corresponding to the position of each one fastening bore of the eccentric disc, and each pumping piston has a stepped hole, thereby A fastening member extends through the stepped hole, a hole in the working zone of each corresponding piston working zone of the diaphragm membrane and into a respective fastening hole in each of the eccentric discs, the diaphragm membrane, And fixing each of the pumping pistons to the corresponding eccentric small disk of the eccentric small disk mount,
The four compression chamber diaphragm pump is
A piston valve assembly that covers the diaphragm membrane and whose outer periphery is fixed to the diaphragm membrane by sealing engagement, and includes a central positioning bore and a plurality of outlet ports that are circumferentially located at equal intervals. A central outlet mount having a plurality of equal sectors, a T-shaped plastic check valve having a central positioning shank, and a plurality of circumferential inlet mounts, each of the inlet mounts being a plurality of equally spaced A circumferentially located inlet port and an inverted central piston disk attached to the respective inlet mount, whereby each piston disk serves as a valve in each corresponding group of inlet ports, and the plastic The central positioning shank of the check valve is made of the central positioning bore of the central outlet mount And when the plurality of outlet ports of the central circular outlet mount communicate with the plurality of inlet mounts and the outer periphery of the diaphragm membrane is secured to the piston valve assembly, each inlet mount and An airtight preliminary water pressurization chamber is formed in the corresponding piston working zone of the diaphragm membrane, and each end of the preliminary water pressurization chamber communicates with a corresponding one of the inlet ports. A piston valve assembly, and
A pump head cover that covers the pump head body, surrounds the piston valve assembly, the pumping piston, and the diaphragm membrane, and includes a water inlet orifice and a water outlet orifice, and the diaphragm membrane and piston valve assembly set 4. A compression head diaphragm , further comprising a pump head cover that is airtightly attached to the body and forms a highly pressurized water chamber between the cavity formed by the inner wall of the annular rib ring and the central outlet mount of the piston valve assembly. Small disk structure of the pump.   The eccentric small disk mount includes a central bearing that receives an integral cam lobe shaft of the rocking plate, and the four eccentric small disks can be moved up and down sequentially according to the rotation of the rocking plate by the motor. The small disk structure of the four compression chamber diaphragm pump according to claim 1.   The small disk structure of a four-compression-chamber diaphragm pump according to claim 1, wherein each of the eccentric small disks is a cylindrical eccentric small disk. 4. A small disk structure of a four-compression chamber diaphragm pump, which is mounted on the small disk mount so as to extend through four operating holes of the pump head body, and a small disk mount positioned on the lower side of the pump head body The four compression chamber diaphragm pumps are fixed to the four eccentric small disks through the four operation holes, the motor having a motor housing to which the pump head body is fixed, and the four compression chamber diaphragm pumps. A diaphragm membrane positioned above the pump head body, and four pumping pistons configured to be moved by a pumping action when the diaphragm membrane moves; As a result, the small disk mount is swung by the rotation of the rocking plate by the motor, and the result As a result, the four eccentric small disks move up and down sequentially, and the eccentric small disk moves up and down, causing the four piston working zones of the diaphragm member and the four pumping pistons to move back and forth sequentially. The diaphragm membrane further includes four annular downwardly projecting positioning protrusions each configured to be inserted into a respective annular positioning groove on a respective upper surface of the eccentric disk.
The top section of each eccentric small disk is in a horizontal plane so as to form an inclined upper ring between the respective annular positioning groove and the vertical side surface of each eccentric small disk or the side surface of the inverted truncated cone. Leaning against
Each said eccentric small disc is an inverted truncated cone eccentric small disc, the largest diameter of said inverted truncated cone eccentric small disc is smaller than the corresponding one of the inner diameter of said operation hole of the pump head body, 4 compression Small disk structure of the room diaphragm pump. The inverted frustoconical eccentric small disk includes a mounting portion fixed to the small disk mount and a separate inverted frustoconical small disk yoke attached to the small disk mount, respectively. The small disk structure of the 4 compression chamber diaphragm pump of Claim 4 formed. The four-compression-chamber diaphragm pump according to claim 5 , wherein each of the attachment portions of the inverted truncated cone eccentric disk is manufactured integrally with the smaller disk mount, and the inverted truncated cone disk yoke is manufactured separately. Small disk structure. Each of the mounting portions of the inverted frustoconical eccentric disc includes a base having an inwardly facing positioning surface and a cylinder having a central internally threaded bore extending upwardly from the base, the inverted cone Each of the pedestal yokes includes an upper bore, an intermediate bore, and a lower bore, wherein the diameter of the intermediate bore is approximately equal to the diameter of the cylinder of the mounting portion, and the diameter of the upper bore is the diameter of the cylinder of the mounting portion. A diameter of the lower bore is approximately equal to a diameter of the base of the mounting portion, the lower bore is fitted over the base, and the intermediate bore is sleeved over the cylinder; the annular locating groove, said defined by the space between the cylinder and the inner wall of the upper bore, 4 compression chamber da of claim 4 Small disk structure of Afuramuponpu. The small disk structure of the four compression chamber diaphragm pump according to any one of claims 1 to 7 , wherein the motor is a motor with a brush. The small disk structure of the four compression chamber diaphragm pump according to any one of claims 1 to 7 , wherein the motor is a brushless motor.