KR20100032349A - Leakage-proof contrivance for upper hood of diaphragm pump - Google Patents

Abstract

The present invention relates to a leak-proof contrivance for upper hood of diaphragm pump, which inclines the vertical wall of the lower layered rim in the tiered cavity of a traditional pump upper hood. Retrofitting to a wall provides a leakproof device for the upper hood of a diaphragm pump. Thereby, when the sealing collar gasket, the piston valve and the diaphragm stacking assembly are inserted in such a manner as to closely attach into the stratified cavity of the pump upper hood, the sealing collar gasket is squeezed obliquely and deformed vertically, This creates an outward normal stress in both up and down directions. Thus, the sealing collar gasket can be attached even more closely to each of the pump upper hood and the piston valve, thereby preventing pressurized water from leaking from the diaphragm pump.

Description

Leakage prevention device for upper hood of diaphragm pump {LEAKAGE-PROOF CONTRIVANCE FOR UPPER HOOD OF DIAPHRAGM PUMP}

The present invention provides a leak prevention apparatus for an upper hood of a diaphragm pump exclusively used for reverse osmosis purification, and specifically, pressurized water of the pump upper hood is leaked to an associated motor. To prevent the adverse effects caused by "water leakage drawback" and "water hammer" caused by small water channels so that they can be completely solved.

Currently, compression diaphragm pumps typically used exclusively for reverse osmosis (RO) purifiers or RO purification systems are described in U.S. Pat. 6089838, 6299414, 6604909, 6840745, 6892624 and 7083392, as well as patented Taiwan Patent 095122820. Here, Taiwan Patent No. 095122820 is filed by the inventors of the present application and disclosed as a patent, as shown in Figs. 1 to 6, a motor 10 having an output shaft (not shown in the figure), a plurality of screws A round hood hood 11 with holes 12, a plurality of wobble roundels 13 with respective threaded holes 14, a triangular diamond with rounded corners Three piston pumping disc 30 with a pram 20, three stratified holes 31 and three screws 32, a piston valve 40 on a piston base 401 in the form of a rounded corner, around the bottom Pump upper hood 50 with a plurality of through holes 51 disposed in the valve, rounded corner triangular sealing collar gasket 60, non-return plastic pad 70, three valve roundes ( 80) as well as a plurality of bolts (2) . The upper hood chassis 11, wobble rounds are driven by screwing the bolts 2 through the corresponding through holes 51 aligned with the pump upper hood 50 and the screw holes 12 in the upper hood chassis 11. (13), diaphragm 20, piston pumping disc 30, valve rounds 80, piston valve 40, sealing collar gasket 60, non-return plastic pad 70 and pump upper hood 50 ) Are all stacked in order and assembled into one piece (as shown in FIG. 3). The wobble roundes 13, which are arranged uniformly in the radial direction in the upper hood chassis 11, are driven by the output shaft of the motor 10 and are selectively deformed by axial movement, respectively.

Basically but triangular, but all three corners are each rounded by an outer edge ridge 22 having an inner ring ridge portion 21, an outer side 222 and an upper surface 221 (as shown in FIG. 2). The fully rounded triangular diaphragm 20 is formed by an annular sealing groove 201 surrounded by an inner ring ridge 21 and an outer edge ridge 22, three uniformly arranged radial Raised ribs 23, three evenly distributed piston pumping zones 24, and three hollow shafts 25. Each of the piston pumping zones 24 is formed by two radially raised ribs 23 adjacent to each other and an arc portion of the inner ring ridge portion 21 opposite them (shown in FIGS. 1 and 2). As one). Each said hollow shaft 25 is arranged in each piston pumping zone 24 at a position corresponding to the threaded hole 14 in each wobble round 13 so that the diaphragm 20 is piston pumped. Each of the stratified holes 31 in the disk 30 and each corresponding hollow shaft 25 in each piston pumping zone 24 of the diaphragm 20, each corresponding threaded hole 14 of each wobble round 13. By passing through each screw 32, it is firmly sandwiched by the upper three piston pumping disks 30 and the lower three wobble rounds 13 (as shown in FIGS. 2 and 5). Each said piston pumping disk 30 enters each screw 32 through each corresponding stratified hole 31 and is firmly secured in each corresponding piston pumping zone 24 of the diaphragm 20, respectively.

The piston valve 40 integrally molded on a triangular piston base 401 with rounded corners having three orienting ridges 47 fixedly positioned on the diaphragm 20 is It basically comprises a central water outlet mount 41 and three peripheral water inlet mounts 44. The triangular piston base of the rounded corners is basically triangular but is completely surrounded by the annular sealing ridge 402 such that all three cornered tips are each rounded and enclosed in the corresponding annular sealing groove 201 of the diaphragm 20 ( 401 has an edge upper surface 403 over annular sealing ridge portion 402. The water outlet mount 41, which is a bowl-shaped profile disposed above the center of the piston valve 40, has three groups of water outlet holes 43 uniformly distributed in three equal sectors with the central orientation hole 42. ) Each of the water inlet mounts 44 integrally molded into a rounded shape cut in part into an inverted bowl profile in circumferential contact with the central water outlet mount 41 has a central orienting hole 45 and a periphery thereof. It has a plurality of water inlet vents 46 evenly distributed. Each of the orienting ridges 47, formed along the step tangent lines surrounding two adjacent water inlet mounts 44, has a sealing collar gasket 60 with an edge top surface 403 of the piston base 401. It has a tangent surface 48 which acts as a positioning curve when stacked on (shown in a partial enlarged view of the piston valve 40 shown in FIG. 2). The sealing collar gasket 60, which is made of a soft material and is approximately triangular with rounded corners to be disposed on the piston valve 40 and the pump upper hood 50, has an upper surface 61, a bottom surface 62 and an outer side surface. Has (63).

The backflow preventive plastic pad 70, which is a soft plastic material and is a top clover-shaped disc of plano-convex profile divided into three deciduous shapes, has a central orienting pin 71 disposed downward below the top disc. The orienting pin 71 can be inserted into an orientating hole 42 in the water discharge mount 41 of the piston valve 40 and the three deciduous upper disks each have three sectors in three sectors. Closely to the two grouped water outlet holes 43.

Each valve round 80, which is a soft plastic material and an upper disk of a flat iron profile, includes a central orienting pin 81 disposed upward on the upper disk, the orienting pin 81 being a respective counterpart. It can be inserted into an orientating hole 45 in the inlet mount 44 and the upper disk is closely attached to and shut off all the water inlet vents 46 in each corresponding water inlet mount 44. Therefore, the initial low pressure chamber 3 is made between each valve round 80 and each corresponding piston pumping disk 30 and one connecting end of the low pressure chamber has a water discharge opening in each corresponding water discharge mount 41. 43 and inter-fluent with each other.

 The pump upper hood 50 of the hollow body having an open bottom has a plurality of through holes 51 disposed around the bottom as well as a water inlet orifice 52 and a water outlet orifice 53 respectively disposed around the top, respectively. ) As shown in FIGS. 1 and 3. The inner layered cavity 54 has a horizontal bottom surface 545 and a vertical wall 546 as well as an internal lower tiered brim 541 having a horizontal bottom surface 542 and a vertical wall 543 therein. And an inner upper stratified rim 544 having a top surface. Since the cavity 54 is inward from the open side of the pump upper hood 50, the horizontal bottom surface 542 and the vertical wall 543 of the lower stratified rim 541 are the upper surface of the sealing collar gasket 60. It is closely attached to the 61 and the outer side surface 63 in a matching manner, while the horizontal bottom surface 545 and the vertical wall 546 of the upper stratified rim 544 have an outer edge ridge of the diaphragm 20. It is closely attached to the top surface 221 and the outer side surface 222 suitable for 22 in a matching manner (as shown in the partial enlarged view of the layered groove 54 in FIG. 2). The innermost annular pit 55 is made outward from the inner upper wall of the pump upper hood 50, and the highly high pressure chamber 4 has a bottom edge of the annular pit 55 to drain the water in the piston valve 40. It is made by the inner space surrounded by the upper part of the water discharge mount 41 in the piston valve 40 and the inner wall of the annular pit 55 when attached to the upper edge face of the mount 41 (FIGS. 4 and FIG. 4). As shown in 5).

4 to 6, the pumping operation of the aforementioned conventional diaphragm pump is shown. First, when the motor 10 is turned on, tab water W flowing from the water inlet orifice 52 into the pump upper hood 50 Pushes open the valve rounds 80 in the water inlet mount 44 and flows through the water inlet vent 46 in the water inlet mount 44 of the piston valve 40 to the initial low pressure chamber 3 ( As indicated by arrows in FIGS. 4 and 5). Secondly, when each wobble round 13 is driven in sequence by the driving force from the output shaft of the motor 10, each corresponding piston pumping disk 30 is connected to each corresponding piston pumping zone of the diaphragm 20 ( Since it will move up and down within 24), the tap water W in the low pressure chamber 3 initially pumps the water pressure from 80 psi to 100 psi into the pressurized water Wp. Third, the pressurized water Wp can be opened by pushing the backflow preventing plastic pad 70 on the water discharge mount 41 of the piston valve 40 so that the pressurized water Wp can be opened by the water discharge mount 41. It can flow into the high pressure chamber (4) through the water discharge hole (43). Finally, the pressurized water Wp is pumped out of the high pressure chamber 4 for use in the filter cartridge in the RO purifier or RO purifier with the required water pressure and is pumped out of the diaphragm pump through the water outlet orifice 53. .

In order to further experiment the pumping operation of the above-mentioned conventional diaphragm pump, reference is made to FIGS. 4 and 6 to 10. When each corresponding piston pumping disk 30 moves in an upward and downward order in each corresponding piston pumping zone 24 of the diaphragm 20, each corresponding sector of the diaphragm 20 moves up and down in sequence. Will be (as shown in Figure 6). Vertical force Fv is generated from the edge upper surface 403 of the piston base 401 on the piston valve 40 and is subsequently applied on the bottom surface 62 of the sealing collar gasket 60. Therefore, both the upper surface 61 and the lower surface 62 of the sealing collar gasket 60 have an upward vertical force Fv from the edge upper surface 403 of the piston base 401 and the lower layered rim of the layered cavity 54. A squeezing stress of the downward vertical force Fv is continuously received from the horizontal bottom surface 542 with respect to 541 (as shown in FIG. 8). Since the wobble rounds 13 move up and down three times in each rotation of the motor 10, the sealing collar gasket 60 will be subjected to the squeezing stress of the vertical force Fv three times in sequence. . Typically, since the motor 10 is 700 revolutions per minute (700 RPM), the sealing collar gasket 60 will be subjected to squeezing stress of the vertical force Fv 2100 times (700 x 3 = 2100). Under the impact of high periods of main squeezing stress, the original thickness H formed between the top surface 61 and the bottom surface 62 of the sealing collar gasket 60 has a thickness h smaller than the original thickness H. The gap G, which becomes thinner, and thus reduces the original thickness H to a thin thickness h, is the upper edge 403 of the piston base 401 of the piston valve 40 and the sealing collar gasket 60. 9, the bottom surface 542 of the bottom layered edge 541 at the bottom surface 62 or the layered cavity 54 of the pump upper hood 50 or the seal ring collar gasket (as shown in FIG. 9). Between the upper surfaces 61 of 60 (as shown in FIG. 10).

Since both the diaphragm 20 and the pump upper hood 50 are made of rigid plastic instead of soft rubber, they cannot be closely attached to each other. The gap δ is also between the outer side surface 222 of the outer edge ridge 22 on the diaphragm 20 and the vertical wall 546 of the upper stratified rim 544 on the layered cavity 54 after some long time operation. Will occur (as shown in FIGS. 9 and 10).

In addition, for all conventional diaphragm pumps used in RO purifiers or RO purge systems, the water inlet orifice 52 of the pump upper hood 50 is a pipe joint J of tap water for the storage tower (imaginary line in FIG. 4). As shown). However, the storage tower is set on the top roof of the building, and the slight descent height of the storage tower and the diaphragm pump can produce a water hammer (Wg) effect each time the motor 10 is temporarily turned ON or OFF. have. The vertical wall of the gap G resulting from thinning the sealing collar gasket 60 and the upper side layer 222 of the outer edge ridge portion 22 on the diaphragm 20 and the upper layered rim 544 on the layered cavity 54. The gap δ between 546 creates a small water channel because the gap G edge and the gap δ are adjacent to each other in a mutually fluid manner. Tap water W, which is affected by the water hammer (Wg) effect and exits from the water inlet orifice 52 of the pump upper hood 50, immediately forms the edge upper surface 403 of the piston base 401 of the piston valve 40. Lower stratified rim 541 at the gap G between the bottom face 62 of the sealing collar gasket 60 (as shown in FIG. 9) or the stratified cavity 54 of the pump upper hood 50. Flows into the gap G between the horizontal bottom surface 542 and the top surface 61 of the sealing collar gasket 60 (as shown in FIG. 10). The tap water W of the water hammer Wg effect is then formed on the outer side surface 222 of the outer edge ridge portion 22 on the diaphragm 20 and on the vertical wall of the upper stratified edge 544 on the layered cavity 54. It flows into the space between the pump upper hood 50 and the upper hood chassis 11 through the gap δ formed between 546. As a result, a "leakage defect" is generated in the pump upper hood 50. The “leakage defect” generated in the pump upper hood 50 not only causes local abnormal pressure to reduce the overall pumping efficiency, but also destroys some external components of the associated RO purifier or RO purge system, and even in the worst case Leakage into the motor 10 through the space between the rounds 13 and the upper hood chassis 11 (as shown in FIG. 9) may result in burning the motor 10 to shut down the entire system. .

In order to eliminate the "leakage defect" mentioned above, some diaphragm pump manufacturers are remodeling the models as shown in FIGS. 11 and 12. Based on the conventional diaphragm pumps known in the preceding paragraph of "Background of the Invention" with respect to FIGS. It includes the same parts as the parts of. The original outer edge ridge portion 22 with the upper surface 223 and outer side surface 224 in the diaphragm 20 is changed to the outer edge ridge portion 22a with increased height, and the original in the pump upper hood 50. The stratified cavity 54 is changed to a simple cavity 56 with no stratified border but with a horizontal bottom surface 561 and an inner vertical wall 562. Since the height of the outer side surface 224 of the outer edge ridge 22a is about the same as the height of the vertical wall 562 of the simple cavity 56, the upper surface of the outer edge ridge portion 22a on the diaphragm 20 ( 223 is flush with the top surface 61 of the sealing collar gasket 60 and adheres closely on the horizontal bottom surface 561 of the simple cavity 56. By the way, the outer side surface 224 of the outer edge ridge portion 22a is simply a stack of diaphragms 20, piston valves 40 and sealing collar gaskets 60, the simple cavity 56 of the pump upper hood 50. When inserted into (as shown in the partial enlarged view in FIG. 12), it adheres closely to the inner vertical wall 562 of the simple cavity 56. Through a real life test under normal climatic conditions for a given time, the gap G is still formed between the horizontal bottom surface 561 of the simple cavity 56 and the sealing collar gasket 60, which is subject to continuous pumping impact. Thinner (as shown in FIG. 13). Therefore, the tap water W of the water hammer (Wg) effect from the water inlet orifice 52 of the pump upper hood 50 is still first of the horizontal bottom surface 561 of the simple cavity 56 and the sealing collar gasket 60. First flows into the gap G between the upper surfaces 61 (as shown in FIG. 13), then flows into the space between the pump upper hood 50 and the upper hood chassis 11 to external the diaphragm 20. Since water leaks through the gap δ formed between the outer side surface 224 of the edge ridge portion 22a and the vertical wall 546 of the simple cavity 56, the “leakage defect” cannot be actually solved.

Modification The new product of the conventional diaphragm pump appears to be free of "leak defects" at an early stage, but it can be seen from the above fact that the "leak defects" problem has not been eliminated in actual life tests under normal climatic conditions. have. Inferentially, the "leakage defect" in the above-described modified conventional diaphragm pump is caused by the worst-case climatic conditions, such as in tropical or cold zones, due to the rapid high temperature expansion and cold shrinkage effects as well as the fast aging effect occurring in the sealing collar gasket 60. Worse worse under Inevitably, the above modified conventional diaphragm pumps must always be replaced by a malfunction before expiration of warranty. Therefore, not only the reputation is bad, but the overall manufacturing cost and the attendant maintenance cost increase. Therefore, an effective and simple method for solving the "leakage defect" in the above-described modified conventional diaphragm pump is an important subject to be urgently addressed.

The present inventors have studied in detail the problem of "water leakage drawback" occurring in the conventional diaphragm pump, and through the research and development of each, it has come up with an effective and simple solution. Therefore, the main object of the present invention is to convert the existing vertical wall of the lower tiered brim into a sloping wall inside the tiered cavity of a conventional pump, thereby making the top of the diaphragm pump To provide a leak prevention apparatus for a hood; Thus, when the sealing collar gasket, the piston valve and the diaphragm stacking assembly are inserted in such a manner as to closely attach into the stratified cavity of the pump upper hood, the outer side of the sealing collar gasket is the bottom stratified in the stratified cavity. Will cause horizontal forces caused by the inclined walls of the rim; On the other hand, the sealing collar gasket is constrained from the circumferential surface of the orientating ridge on the piston valve, which is squeezed obliquely and deformed in the vertical direction, producing normal stress outwards up and down. . Due to the outward normal stresses in the up and down directions, when the sealing collar gasket is fitted between the pump upper hood and the piston valve, the top and bottom surfaces of the sealing collar gasket It can be fitted in a manner that is much more closely attached to the stratified cavity of the hood and the piston base of the piston valve, respectively, so that pressurized water can be prevented from leaking from the diaphragm pump.

Another object of the present invention is to convert an existing simple cavity with horizontal bottom and inner vertical walls in a traditional pump upper hood into a simple cavity with inclined walls in addition to the horizontal bottom and inner vertical walls, One edge of the wall is in contact with the horizontal bottom surface and the other edge of the inclined wall is in contact with the vertical wall, respectively, to provide a leak prevention device for the upper hood of the diaphragm pump; Thus, when the sealing collar gasket, the piston valve and the diaphragm stacking assembly are inserted in such a manner as to closely attach into the layered cavity of the pump upper hood, the upper side and the outer side adjacent to the upper side are removed from the inclined wall of the simple cavity. Subject to compression limitations, the outer side of the sealing collar gasket will be indirectly affected causing horizontal forces; Sealing collar gaskets, on the other hand, are limited from the circumferential surface of the orientating ridge on the piston valve, which are squeezed obliquely and deformed in a vertical direction, thus producing normal stresses directed outwards up and down. Create Due to the outward normal stresses in the up and down directions, when the sealing collar gasket is fitted between the pump upper hood and the piston valve, the top and bottom surfaces of the sealing collar gasket It can be fitted in a manner that is much more closely attached to the simple cavity of the hood and the piston base of the piston valve, respectively, so that pressurized water can be prevented from leaking from the diaphragm pump.

The problem of "leakage defect" caused by the piston valve of the conventional diaphragm pump can be solved, and the labor cost in the manufacturing process can be greatly reduced.

Referring to Figures 14 to 16, there is shown the first embodiment of the present invention "leak prevention device for the upper hood of the diaphragm pump". Based on the traditional diaphragm pump described in the "Background" section above, in conjunction with FIGS. 1-6, the present invention provides a tiered cavity (upper hood) 50 of a conventional pump ( An existing vertical wall 543 of the internal lower tiered brim 541 within 54 is a sloped wall 547 (as in the partial enlarged view of FIG. 14). Except as modified, it includes parts such as those in the prior art of Taiwan Patent No. 095122820. In the first embodiment of the present invention "leak protection device for the upper hood of the diaphragm pump", the structural advantages in the pumping operation can be specified as follows: First, the piston valve 40 is assembled on the diaphragm 20. Stack up in a way; Second, the diaphragm 20 is fitted with a sealing collar gasket 60 over the rim top surface 403 of the piston base 401 on the piston valve 40. Together with the piston valve 40 and the sealing collar gasket 60 become a preliminary integral object; Finally, a preliminary integral object of the piston valve 40 and the sealing collar gasket 60 together with the diaphragm 20 is inserted into the layered cavity 54 of the pump upper hood 50 in such a way as to adhere closely. To finally become an integral object (as shown in FIG. 15). The outer side surface 63 of the sealing collar gasket 60 at this time causes a horizontal force Fh caused by the inclined wall 547 of the lower stratified rim 541 in the stratified cavity 54 (arrow shown in FIG. 16). Direction). On the other hand, the sealing collar gasket 60 is restricted from the circumferential surface 48 of the orientating ridge 47 on the piston valve 40, which is squeezed obliquely and deformed in the vertical direction, upwards and downwards. Produces a normal stress F outwards (same as half-solid arrow head shown in FIG. 16). Due to the outward normal stresses F in the up and down directions, when the sealing collar gasket 60 is fitted between the pump upper hood 50 and the piston valve 40, the upper surface of the sealing collar gasket 60 ( The top surface 61 and bottom surface 62 are attached much more closely to the laminar cavity 54 of the pump upper hood 50 and the piston base 401 of the piston valve 40 respectively. Can be prevented from leaking from pressurized water Wp from the diaphragm pump.

Referring also to 17 to 19, there is shown a second embodiment of the present invention "leak prevention device for the upper hood of the diaphragm pump". With reference to Figures 11 and 12, based on an improved model of the traditional diaphragm pump described in "Background" above, the present invention provides components in the prior art of the improved model except for the following changes. Includes parts such as As a modification, the existing simple cavity 56 with a horizontal bottom surface 571 and an inner vertical wall 572 in a traditional pump upper hood 50 is provided with a horizontal bottom surface 571 and an inner vertical wall 572. ), One edge of the inclined wall 573 is in contact with the horizontal bottom surface 571 and the other edge of the inclined wall 573 in addition to the simple cavity 57 with the inclined wall 573. the other edge is in contact with the vertical wall 572 respectively; In addition, in the diaphragm 20, an existing outer rim ridge 22 having an upper surface 223 and an outer side surface 224 is an outer side surface of the outer edge ridge portion 22a. The height is changed to the outer edge ridge portion 22a so that the height of the 224 is slightly smaller than the height of the vertical wall 572 of the simple cavity 57, so that the vertical wall 572 of the simple cavity 57 is ) And the space surrounded by the horizontal bottom surface 571 is slightly larger to accommodate the top surface 223 and the outer side surface 224 of the outer edge ridge portion 22a on the diaphragm 20 to be closely attached therein. It is.

In the second embodiment of the present invention "Leakage prevention device for the upper hood of the diaphragm pump", the structural advantages of the pumping operation can be specified as follows: First, the piston valve 40 is assembled on the diaphragm 20 Stack with; Secondly, the sealing collar gasket 60 is fitted over the edge upper surface 403 of the piston base 401 on the piston valve 40, together with the diaphragm 20 the piston valve 40 and the sealing collar gasket 60. ) Becomes a preliminary unitary object; Finally, a preliminary integral object of the piston valve 40 and the sealing collar gasket 60 together with the diaphragm 20 is inserted into the simple cavity 57 of the pump upper hood 50 in such a way as to closely attach it. To finally become an integral object (as shown in FIG. 18). At this time, the upper surface 223 and the outer side surface 224 adjacent to the upper surface 223 are constrained to be compressed from the inclined wall 573 of the simple cavity 57, so that the outer side surface of the sealing collar gasket 60 ( 63) is indirectly affected resulting in a horizontal force Fh (like the arrow shown in FIG. 19). On the other hand, the sealing collar gasket 60 is restricted from the circumferential surface 48 of the orienting ridge portion 47 on the piston valve 40, and is squeezed obliquely and deformed in the vertical direction, and directed outward in the up and down directions. Generate a normal stress F (like the half arrow shown in FIG. 19). As in the first embodiment, when the sealing collar gasket 60 is sandwiched between the pump upper hood 50 and the piston valve 40 due to the outward normal stresses F in the up and down directions, the sealing collar The upper surface 61 and the bottom surface 62 of the gasket 60 are attached to the simple cavity 57 of the pump upper hood 50 and the piston base 401 of the piston valve 40 more closely, respectively. It can be fitted so that the pressurized water Wp can be prevented from leaking from the diaphragm pump.

Based on the teachings and experimental tests disclosed herein, the Applicant of the present invention, after the actual life test, the present invention to ensure that the "water leakage drawback" to solve without any adverse effect reliably As evidenced, this is of great value for industrial applicability. In particular, the solution scenario according to the present invention is simple and innovative beyond the clarity of the prior art, which satisfies the patentable conditions.

1 is an exploded perspective view of a conventional diaphragm pump of the prior art;

2 is a cross-sectional view of a conventional diaphragm pump of the prior art.

3 is an assembled perspective view of a conventional diaphragm pump of the prior art;

4 is a cross-sectional view taken along the line 4-4 of FIG.

5 is a cross-sectional view taken along line 5-5 of FIG.

6 is a sectional view showing the pumping operation of a traditional diaphragm pump.

7 is a schematic cross-sectional view showing a sealing collar gasket subjected to normal stress between the pump upper hood and the piston valve during the pumping operation of a traditional diaphragm pump.

FIG. 8 is a schematic cross-sectional view showing a modified sealing collar gasket after a normal stress between the pump upper hood and the piston valve during the pumping operation of a traditional diaphragm pump.

FIG. 9 is an enlarged view of a portion enlarged to the left "A" in FIG. 6; FIG.

FIG. 10 is an enlarged view illustrating a portion “B” of the right side of FIG.

11 is a schematic cross-sectional view of another type of traditional diaphragm pump.

12 is an assembled cross sectional view of another type of traditional diaphragm pump.

FIG. 13 is an enlarged view illustrating a portion “C” of the right side of FIG. 6 enlarged; FIG.

14 is a schematic cross-sectional view of the deployment parts of the first embodiment of the present invention.

Fig. 15 is a schematic sectional view of the assembled parts of the first embodiment of the present invention.

FIG. 16 is an enlarged view of a portion enlarged to the right side “D” of FIG. 15;

Figure 17 is a schematic cross sectional view of the deployment parts of the first embodiment of the present invention.

18 is a schematic cross-sectional view of the assembled parts of the first embodiment of the present invention.

FIG. 19 is an enlarged view of a portion enlarged on the right side “E” of FIG. 18; FIG.

Claims (2)

A leakage-proof contrivance for upper hood of diaphragm pump, the device comprising: A motor with an output shaft, an upper hood chassis with a plurality of screw screwes arranged around it, and three wobble roundles, each with threaded bore inside , Three piston pumping disks with diaphragm, three tiered bores and three screws, a piston valve on the piston base, a plurality of through holes arranged around the floor pump upper hood with sealing perforated holes, sealing collar gasket, anti-backflow plastic pad, three valve roundes and a plurality of bolts ; The diaphragm is basically a triangular but all three corners each rounded, with an outer rim ridge and an inner ring ridge having an outer lateral surface and a top surface. Fully surrounded by an inner ring ridge, the diaphragm comprises an annular sealing groove surrounded by an inner ring ridge and an outer edge ridge, evenly arranged three radially raised ribs. Radial ridged ribs, evenly distributed three piston pumping zones and three hollow shafts, each of which has two adjacent radial ridges Formed by the arc sections of the ribs and corresponding inner ring ridge portions thereof; Each of the hollow shafts is disposed in each piston pumping zone at a position corresponding to a threaded hole in each wobble round, and each of the piston pumping disks, respectively, in a corresponding piston pumping zone, respectively corresponding stratified Each is fixed by a screw through the hole; The piston valve is integrally molded on a rounded triangular piston base with three orientating ridges for reliably positioning on the diaphragm, essentially one central A central water discharge mount and three peripheral water inlet mounts, wherein the piston base is basically a triangle or all three angle tips are rounded It is completely surrounded by an annular sealing ridge portion enclosed in an annular sealing groove of the corresponding diaphragm and has a rim top surface above the annular sealing ridge portion; The water discharge mount is arranged in the center top of the piston valve as a bowl-shaped profile and has three grouped water discharge openings evenly distributed in three equal sectors. ) And one central orientation hole; Each water inlet mount is an inverted bowl-shaped profile, comprising a plurality of water inlet vents that are integrally molded, enclosed and evenly distributed in a partially cut round shape in peripheral contact with a central water outlet mount. ) And one central orientation hole; Each of the orienting ridges is formed along a footing tangent line that surrounds adjacent adjacent water inlet mounts and has one tangent surface; The non-return plastic pad is made of soft elastic material, having a clover-like, plano-convex profile upper disk with a divided three-leaved shape, and under the upper disk. With a centrally orientating pin positioned downwards, the orienting pin is inserted into an orienting hole in the water discharge mount of the piston valve so that the three blades of the upper disk are three grouped with three blades each within three sectors. Can be attached closely over the water outlet hole; Each of the rounds of the valve is made of a soft elastic material, has an upper disk of flat iron profile, and has a central orienting pin disposed upwardly on the upper disk, such that the orienting pin corresponds to a corresponding angle. Inserted into an orientating hole in the water inlet mount, the upper disk can be closely attached to close all water inlet vents in each of the corresponding water inlet mounts, with an initial clearance between each valve round and the corresponding respective piston pumping disc. A preliminary low-pressured chamber is formed and one connecting end of the low pressure chamber is inter-fluent with the water outlets in the corresponding water discharge mount; The pump upper hood has a hollow body with an open bottom, and the pump upper hood has a water inlet orifice and a water outlet orifice disposed respectively opposite the upper periphery and a plurality of through holes arranged around the bottom. ; An inner lower tiered cavity with an inner lower tiered brim with a horizontal bottom and vertical walls and an upper tie rim with a horizontal bottom and a vertical wall inside is provided for the pump upper hood. It is formed inward from the opening side; The horizontal bottom of the lower stratified rim, while the horizontal bottom and vertical walls of the upper stratified rim can be closely attached in a match manner with the top and outer sides of the outer rim ridge of the diaphragm. An innermost annular pit is formed outward from the inner upper wall of the pump upper hood so that the face and vertical walls can be closely attached in a matched manner to the upper and outer sides of the sealing collar gasket. And; When the bottom rim surface of the annular fit is closely attached to the upper edge surface of the water discharge mount in the piston valve, the interior surrounded by the top surface of the water discharge mount in the piston valve and the inner wall of the annular fit By space, a very high high pressure chamber is formed; The sealing collar gasket is of a soft material and is made in a roughly triangular shape with rounded angles and has an upper side and a bottom side and an outer side surface; In the leak prevention device for the upper hood of the diaphragm pump, The vertical weall of the internal lower tiered brim in the layered cavity of the pump upper hood is adapted to be a sloped wall to prevent leakage of the upper hood of the diaphragm pump. Device. A leakage-proof contrivance for upper hood of diaphragm pump, the device comprising: A motor with an output shaft, an upper hood chassis with a plurality of screw screwes arranged around it, and three wobble roundles, each with threaded bore inside , Three piston pumping disks with diaphragm, three tiered bores and three screws, a piston valve on the piston base, a plurality of through holes arranged around the floor pump upper hood with sealing perforated holes, sealing collar gasket, anti-backflow plastic pad, three valve roundes and a plurality of bolts ; The diaphragm is basically a triangular but all three corners each rounded, with an outer rim ridge and an inner ring ridge having an outer lateral surface and a top surface. Fully surrounded by an inner ring ridge, the diaphragm comprises an annular sealing groove surrounded by an inner ring ridge and an outer edge ridge, evenly arranged three radially raised ribs. Radial ridged ribs, evenly distributed three piston pumping zones and three hollow shafts, each of which has two adjacent radial ridges Formed by the arc sections of the ribs and corresponding inner ring ridge portions thereof; Each of the hollow shafts is disposed in each piston pumping zone at a position corresponding to a threaded hole in each wobble round, and each of the piston pumping disks, respectively, in a corresponding piston pumping zone, respectively corresponding stratified Each is fixed by a screw through the hole; The piston valve is integrally molded on a rounded triangular piston base with three orientating ridges for reliably positioning on the diaphragm, essentially one central A central water discharge mount and three peripheral water inlet mounts, wherein the piston base is basically a triangle or all three angle tips are rounded It is completely surrounded by an annular sealing ridge portion enclosed in an annular sealing groove of the corresponding diaphragm and has a rim top surface above the annular sealing ridge portion; The water discharge mount is arranged in the center top of the piston valve as a bowl-shaped profile and has three grouped water discharge openings evenly distributed in three equal sectors. ) And one central orientation hole; Each water inlet mount is an inverted bowl-shaped profile, comprising a plurality of water inlet vents that are integrally molded, enclosed and evenly distributed in a partially cut round shape in peripheral contact with a central water outlet mount. ) And one central orientation hole; Each of the orienting ridges is formed along a footing tangent line that surrounds adjacent adjacent water inlet mounts and has one tangent surface; The non-return plastic pad is made of soft elastic material, having a clover-like, plano-convex profile upper disk with a divided three-leaved shape, and under the upper disk. With a centrally orientating pin positioned downwards, the orienting pin is inserted into an orienting hole in the water discharge mount of the piston valve so that the three blades of the upper disk are three grouped with three blades each within three sectors. Can be attached closely over the water outlet hole; Each of the rounds of the valve is made of a soft elastic material, has an upper disk of flat iron profile, and has a central orienting pin disposed upwardly on the upper disk, such that the orienting pin corresponds to a corresponding angle. Inserted into an orientating hole in the water inlet mount, the upper disk can be closely attached to close all water inlet vents in each of the corresponding water inlet mounts, with an initial clearance between each valve round and the corresponding respective piston pumping disc. A preliminary low-pressured chamber is formed and one connecting end of the low pressure chamber is inter-fluent with the water outlets in the corresponding water discharge mount; The pump upper hood has a hollow body with an open bottom, and the pump upper hood has a water inlet orifice and a water outlet orifice disposed respectively opposite the upper periphery and a plurality of through holes arranged around the bottom. ; An inner simple cavity having a horizontal bottom surface and an inner vertical wall but without a tiered brim is formed inward from the opening side of the pump upper hood. And the height of the vertical wall in the simple cavity is slightly higher than the height of the outer side of the outer rim ridge so that the space surrounded by the vertical wall and the horizontal bottom surface of the simple cavity is on the outside of the diaphragm. Slightly larger to accommodate the outer side and top surface of the edge ridge portion to be closely attached thereto; An innermost annular pit is formed outward from the inner upper wall of the pump upper hood; When the bottom rim surface of the annular fit is closely attached to the upper edge surface of the water discharge mount in the piston valve, the interior surrounded by the top surface of the water discharge mount in the piston valve and the inner wall of the annular fit By space, a very high high pressure chamber is formed; The sealing collar gasket is of a soft material and is made in a roughly triangular shape with rounded angles and has an upper side and a bottom side and an outer side surface; In the leak prevention device for the upper hood of the diaphragm pump, The simple cavity of the pump upper hood is converted into a simple cavity with a sloped wall, in addition to the horizontal bottom and the inner vertical wall, so that one edge of the sloped wall is Leakage preventing device for the upper hood of the diaphragm pump, characterized in that in contact with the horizontal bottom surface, the other edge of the inclined wall is in contact with the vertical wall

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