CN204061117U - The eccentric cam structure improvement of diaphragm booster pump - Google Patents
The eccentric cam structure improvement of diaphragm booster pump Download PDFInfo
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- CN204061117U CN204061117U CN201420343646.5U CN201420343646U CN204061117U CN 204061117 U CN204061117 U CN 204061117U CN 201420343646 U CN201420343646 U CN 201420343646U CN 204061117 U CN204061117 U CN 204061117U
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Abstract
The utility model relates to a kind of eccentric cam structure improvement of diaphragm booster pump, its be eccentric cam in diaphragm booster pump cylindrical body on be equipped with the metal hollow round bush that a hardness number is equal to or greater than escapement bearing hardness number, after making the motor force-output shaft of diaphragm booster pump rotate start a period of time, empty round bush and escapement bearing can not produce the disappearance of 〝 skidding 〞 each other between the two in a metal, and then guarantee that in escapement seat, each piston start district frequency number of times of three escapement pushing tow diaphragms is unattenuated, except continuing to export except the filtered water pressure in reverse osmosis water filter required by RO film pipe by holding pump skull, also known diaphragm booster pump is solved completely, because of boost performance decline and under not reaching the condition of 1 year warranty period, must pay and change diaphragm booster pump new product to the loss of Consumer.
Description
Technical field
The utility model is relevant with the diaphragm booster pump be installed in reverse osmosis water filter (reverse osmosis purification), refer to especially a kind of can by between the cylindrical body of eccentric cam in this diaphragm booster pump and the bearing hole of escapement bearing, can after motor force-output shaft start a period of time, the 〝 skidding 〞 occurred eliminates, and then maintain each piston start district frequency number of times of three escapement pushing tow diaphragms in escapement seat, and make pump head lid continue to export the filtered water pressure in reverse osmosis water filter required by RO film pipe, and solve known diaphragm booster pump, because of boost performance decline and under not reaching the condition of 1 year warranty period, must pay and change diaphragm booster pump new product to the loss of Consumer.
Background technique
Knownly at present be used in the special diaphragm booster pump of reverse osmosis water filter, by exposure such as No. the 4396357th, 4610605,5476367,5571000,5615597,5626464,5649812,5706715,5791882,5816133,6089838,6299414,6604909,6840745 and 6892624, U. S. Patent etc. be all, its structure as shown in Figures 1 to 10, is comprise:
One motor 10, its front end central authorities have protruded out a force-output shaft 11, and on the radial axis body near this force-output shaft 11 end, be provided with a radial scarce face, limit 12;
One motor protecgulum 30, be installed on the front end of motor 10, and entreat build-in to have a bearing 31 wherein, and stretch out outside this bearing 31 after being placed by the force-output shaft 11 of motor 10, separately be convexly equipped with a circle epirelief annulus 32 in its outer periphery, and on the inner edge surface of this epirelief annulus 32, be provided with several fixing perforation 33;
One eccentric cam 40, be made up of an orlo 41 and a cylindrical body 42, and it is shaping with metal material integrated die-casting, or with plastic-steel (ABS) material Unitary injection formed, wherein, this orlo 41 has a horizontal bottom 43, one sloped top face 44 and a side end face 45, linked into an integrated entity by this side end face 45 corral between this horizontal bottom 43 and sloped top face 44, and this cylindrical body 42 is that vertical projection is in the sloped top face 44 of orlo 41, and have a distance apart between the central axis C1 of the cylindrical body 42 and central axis C2 of this sloped top face 44, make cylindrical body 42 can form eccentric cam (as shown in Figure 4) in the sloped top face 44 of orlo 41, separately from central sloped top face 44 direction toward orlo 41 of the end face of this cylindrical body 42, run through one again and there is the radial axis hole 46 lacking face, limit 47, after can placing for motor 10 force-output shaft 11, lack face, limit 47 by the radial direction on this axis hole 46 again and lack face, limit 12 with the radial direction on this force-output shaft 11 axis body, produce effect of mutual fastening occlusion,
One escapement seat 50, its bottom center build-in has an escapement bearing 51, bearing hole 52 by this escapement bearing 51 can be set on the cylindrical body 42 of eccentric cam 40, the end face equi-spaced apart arrangement of its pedestal is convexly equipped with three escapements 53, the end face of each escapement 53 is arranged with a tapped hole 54, and is arranged with a delineation position concave ring groove 55 again in the periphery of this tapped hole 54;
One pump head seat 60, that cover is placed on the epirelief annulus 32 of motor protecgulum 30, its end face is equipped with three equi-spaced apart and is greater than the start perforation 61 of three escapement 53 external diameters in escapement seat 50, make three escapements 53 can be placed through in three start perforation 61, its bottom surface is to having dome ring 62 under a circle again, the yardstick of this lower dome ring 62 is identical with epirelief annulus 32 yardstick of motor protecgulum 30, another end face down dome ring 62 direction near outer periphery, then is equipped with several fixing perforation 63;
One diaphragm 70, be placed on the end face of pump head seat 60, by semi-rigid elastic material ejection formation, its outermost periphery end face is equipped with two circles and parallels opposed outer raised line 71 and interior raised line 72, and give off three roads and this interior raised line 72 phase fin 73 in succession by end face central position, between Shi Gai tri-road fin 73 and interior raised line 72, three piston start districts 74 have been separated out between quilt, and each piston start district 74 corresponds on tapped hole 54 position of each escapement 53 end face in escapement seat 50, respectively be equipped with again a central perforation 75, and be convexly equipped with a circle positioning convex ring block 76(in diaphragm 70 bottom surface being positioned at each central perforation 75 as can be seen from figures 8 and 9),
Three piston thrust blocks 80, be placed in three piston start districts 74 of diaphragm 70 respectively, each piston thrust block 80 runs through and is provided with a shoulder hole 81, three positioning convex ring blocks 76 of diaphragm 70 bottom surface are plugged in the location concave ring groove 55 of three escapements 53 in escapement seat 50 respectively, the shoulder hole 81 into piston thrust block 80 is worn again with retaining screw 1, and after passing the central perforation 75 in three piston start districts 74 in diaphragm 70, diaphragm 70 and three piston thrust blocks 80 can be fixed at simultaneously the tapped hole 54 interior (as shown in the zoomed-in view in Figure 10) of three escapements 53 in escapement seat 50,
One piston valve body 90, its bottom outer peripheral edge side is convexly equipped with a ring raised line 91 downwards, the space between diaphragm 70 China and foreign countries' raised line 71 and interior raised line 72 can be plugged, and be provided with a circular drainage seat 92 towards the middle position in pump head lid 20 direction, and be equipped with a positioning hole 93 in the central authorities of drainage seat 92, can penetrate fixing for a T-shaped non-return rubber cushion 94, on the region of the another 120 degree of angular position in each interval centered by this positioning hole 93, respectively be equipped with several weep hole 95, and to should in drainage seat 92 peripheral surface in three area sewerage holes 95, be equipped with again spaced 120 degree of angles arrangement respectively and opening three influent bases 96 all down, each influent base 96 is equipped with again several water inlet 97, and place the T-shaped piston sheet of a handstand 98 in the central authorities of each influent base 96, can hinder by this piston sheet 98 and cover each water inlet 97, wherein, weep hole 95 in drainage seat 92 on each region, each influent base 96 is corresponding thereto connected respectively, after ring raised line 91 bottom piston valve body 90 is plugged the space between the outer raised line 71 of diaphragm 70 and interior raised line 72, can between each influent base 96 and end face of diaphragm 70, respectively be formed with a pressurized chamber 26(closed as shown in Figure 10 and zoomed-in view thereof), and
One pump head lid 20, be covered on pump head seat 60, its outer edge surface is provided with a water intake 21, one water outlet 22 and several fixing perforation 23, and be provided with a scalariform groove 24 in the bottom part ring of inner edge surface, assemblying body outer rim after diaphragm 70 and piston valve body 90 are coincided mutually, can be closely attached to (as shown in the zoomed-in view in Figure 10) on this scalariform groove 24, another edge face central authorities are within it provided with a circle dome ring 25, the bottom of this dome ring 25 presses on the outer edge surface of drainage seat 92 in piston valve body 90, make between the internal face of this dome ring 25 and the drainage seat 92 of piston valve body 90, can around formation one high pressure hydroecium 27(as shown in Figure 10), the each fixing perforation 23 of pump head lid 20 is each passed through by fixing bolt 2, and by after each fixing perforation 63 of pump head seat 60, be screwed with the nut 3 of inserting in pump head seat 60 in each fixing perforation 63 respectively again, and to be directly screwed in motor protecgulum 30 in each fixing perforation 33, the combination (as shown in Fig. 1 and Figure 10) of whole diaphragm booster pump can be completed.
As shown in FIG. 11 and 12, be above-mentioned known diaphragm booster pump make flowing mode, after the force-output shaft 11 of motor 10 rotates, can eccentric cam 40 and escapement bearing 51 be synchronously driven to rotate, and via the transmission of escapement bearing 51, thrusting action is upwards produced to escapement seat 50, also impel three escapements 53 sequentially to produce in upper and lower reciprocal start simultaneously, and three piston start districts 74 on diaphragm 70, also the start up and down of three escapements 53 can be subject to, synchronous sequentially by up pushing tow and toward drop-down and upper and lower displacement that is that produce repeatedly, therefore, when escapement 53 down start time, synchronously by the piston start district 74 of diaphragm 70 and piston thrust block 80 toward drop-down, the piston sheet 98 of piston valve body 90 is pushed open, and in the future the tap water W of self-pumping skull 20 water intake 21 via water inlet 97, and enter in pressurized chamber 26 (as shown in the arrow W in Figure 11 and zoomed-in view thereof), when escapement 53 up pushing tow start time, also synchronous each piston start district 74 of diaphragm 70 and piston thrust block 80 up to be pushed up, and the water in pressurized chamber 26 is extruded, its hydraulic pressure is made to be increased between 80psi ~ 100psi, non-return rubber cushion 94 on drainage seat 92 can be pushed open by the high pressure water Wp therefore after boosting, and via each weep hole 95 of drainage seat 92, sequentially constantly flow in high pressure hydroecium 27, and then discharge diaphragm booster pump outer (as shown in the arrow Wp in Figure 12 and zoomed-in view thereof) via the water outlet 22 of pump head lid 20, and then provide RO film pipe in reverse osmosis water filter to carry out the water pressure needed for reverse osmosis filtration.
As Fig. 3, shown in Fig. 4 and Figure 13, the hydraulic pressure that aforementioned known diaphragm booster pump exports for making the water outlet 22 of its pump head lid 20, RO film pipe in reverse osmosis water filter can be reached and carry out the water pressure requirement of the 80psi ~ 100psi needed for reverse osmosis filtration, force-output shaft 11 rotating speed of its motor 10 at least just can need meet between 700rpm-1200rpm, therefore via each piston start district 74 frequency of each its pushing tow diaphragm 70 of escapement 53 in escapement seat 50 after converting, also all per secondly more than 4 times are reached to I haven't seen you for ages, but, before this known diaphragm booster pump but often finds to use and does not reach the warranty period of 1 year, below 80psi will be dropped to by the hydraulic pressure that exports of the water outlet 22 of generating pump skull 20, and cause the result that the pure water amount of RO film pipe institute output in reverse osmosis water filter reduces gradually, make the manufacturer manufacturing known diaphragm booster pump, also because of boost performance decline and under not reaching the condition of 1 year warranty period, and the loss changing diaphragm booster pump new product must be paid, therefore, this creator is as the manufacturer of diaphragm booster pump, be carry out understanding in depth and carefully study rear discovery, problem is between the bearing hole 52 of cylindrical body 42 and escapement bearing 51 in eccentric cam 40, can after motor 10 force-output shaft 11 start a period of time (as shown in Figure 13 and zoomed-in view thereof), there is 〝 skidding 〞 and cause both untrue situations of Synchronous Transmission, and then make the frequency in each piston start district 74 in each escapement 53 pushing tow diaphragm 70 be down to less than 4 times per second, investigate the reason that its 〝 skidding 〞 causes again, then because eccentric cam 40 is shaping by metal material integrated die-casting, or by plastic-steel material Unitary injection formed, therefore its hardness number is lower, review, escapement bearing 51 is formed by high carbon steel material car system, therefore its hardness number can be high compared with the plastic-steel material equal hardness value of the metal material of die cast or ejection formation, when the element hardness number of two kinds of mutual close contact transmissions is different, it inherently produces the disappearance of 〝 skidding 〞 to each other after start a period of time because friction level is different, therefore how to eliminate the disappearance of this mutual 〝 skidding 〞, just seem very important.
Model utility content
Main purpose of the present utility model is providing a kind of eccentric cam structure improvement of diaphragm booster pump, its be eccentric cam in known diaphragm booster pump cylindrical body outer edge surface on be equipped with a metal hollow round bush, the wall of this metal hollow round bush endoporus is provided with an axial snap-latch surface, and in this eccentric cam cylindrical body outer edge surface on be also provided with one and axially lack face, limit, after making the cylindrical body of eccentric cam be set in the endoporus of metal hollow round bush, face, limit can be lacked by the axis on its cylindrical body outer edge surface, and with the axial snap-latch surface on metal hollow round bush endoporus wall, reach and mutually fit tightly and form clip effect, wherein, the hardness number of this metal hollow round bush is equal to or greater than the hardness number of escapement bearing, and both are that tightness coordinates (Interference fit) in the pass of matching of nargin and tolerance combinations, therefore after the rotation start a period of time along with motor force-output shaft can be made, the disappearance of 〝 skidding 〞 each other can not be produced between them, and then each piston start district frequency of three escapement pushing tow diaphragms in escapement seat can not be caused to be lowered, and cause pump head lid hydraulic pressure that water outlet exports, RO film pipe in reverse osmosis water filter can not be met and carry out the shortcoming that required hydraulic pressure force value requirement is filtered in reverse osmosis, also can solve known diaphragm booster pump completely simultaneously, because of boost performance decline and under not reaching the condition of 1 year warranty period, the loss changing diaphragm booster pump new product must be paid.
The technical solution of the utility model is: a kind of eccentric cam structure improvement of diaphragm booster pump, comprising:
One motor, its front end central authorities have protruded out a force-output shaft, and on the radial axis body near this force-output shaft end, be provided with a radial scarce face, limit;
One motor protecgulum, is installed on the front end of motor, and its central build-in has a bearing, can place for the force-output shaft of motor and stretch out outside this bearing, separately be convexly equipped with a circle epirelief annulus in outer periphery, and be provided with again several fixing perforation on the inner edge surface of this epirelief annulus;
One eccentric cam, be made up of an orlo and a cylindrical body, and it is shaping with metal material integrated die-casting, or with plastic-steel material Unitary injection formed, wherein, this orlo has a horizontal bottom, one sloped top face and a side end face, linked into an integrated entity by this side end face corral between this horizontal bottom and sloped top face, the vertical projection of this cylindrical body is in the sloped top face of orlo, and have a distance apart between the central axis of this cylindrical body and the central axis of this sloped top face, cylindrical body is made to form eccentric cam in the sloped top face of orlo, separately from the central sloped top face direction toward orlo of the end face of this cylindrical body, run through one again and there is the radial axis hole lacking face, limit, after can placing for the force-output shaft of motor, and lack face, limit with the radial direction on this force-output shaft axis body, produce effect of mutual fastening occlusion,
One escapement seat, its bottom center build-in has an escapement bearing, bearing hole by this escapement bearing can be set on the cylindrical body of eccentric cam, the end face equi-spaced apart arrangement of its pedestal is convexly equipped with three escapements, the end face of each escapement is arranged with a tapped hole, and is arranged with a delineation position concave ring groove again in the periphery of this tapped hole;
One pump head seat, that cover is placed on the epirelief annulus of motor protecgulum, its end face is equipped with three equi-spaced apart and is greater than the start perforation of three escapement external diameters in escapement seat, make three escapements can be placed through in three start perforation, its bottom surface is to having dome ring under a circle again, the yardstick of this lower dome ring is identical with the epirelief annulus yardstick of motor protecgulum, the another end face down convex annular direction near outer periphery, then is equipped with several fixing perforation;
One diaphragm, be placed on the end face of pump head seat, by semi-rigid elastic material ejection formation, its outermost periphery end face is equipped with two circles and parallels opposed outer raised line and interior raised line, and give off three roads by end face central position and to connect with this interior raised line the fin connected, between Shi Gai tri-road fin and interior raised line, three piston start districts have been separated out between quilt, and each piston start district corresponds on the tapped hole position of each escapement end face in escapement seat, respectively be equipped with a central perforation again, and be convexly equipped with a circle positioning convex ring block in the diaphragm bottom surface being positioned at each central perforation,
Three piston thrust blocks, it is placed in three piston start districts of diaphragm respectively, each piston thrust block runs through and is provided with a shoulder hole, three of diaphragm bottom surface positioning convex ring blocks are plugged in the location concave ring groove of three escapements in escapement seat respectively, the shoulder hole into piston thrust block is worn again with retaining screw, and after passing the central perforation in three piston start districts in diaphragm, can diaphragm and three piston thrust blocks be fixed in the tapped hole of three escapements in escapement seat simultaneously;
One piston valve body, its bottom outer peripheral edge side is convexly equipped with a ring raised line downwards, the space between diaphragm China and foreign countries' raised line and interior raised line can be plugged, middle position towards pump head lid direction is provided with a circular drainage seat, and be equipped with a positioning hole in the central authorities of drainage seat, can penetrate fixing for a T-shaped non-return rubber cushion, on the region of the another 120 degree of angular position in each interval centered by this positioning hole, respectively be equipped with several weep hole, and to should in the drainage seat peripheral surface in three area sewerage holes, be equipped with again spaced 120 degree of angles arrangement respectively and opening three influent bases all down, each influent base is equipped with again several water inlet, and place the T-shaped piston sheet of a handstand in the central authorities of each influent base, and
One pump head lid, be covered on pump head seat, its outer edge surface is provided with a water intake, a water outlet and several fixing perforation, a scalariform groove is provided with in the bottom part ring of inner edge surface, assemblying body outer rim after diaphragm and piston valve body are coincided mutually, can be closely attached on this scalariform groove, separately within it edge face central authorities are provided with a circle dome ring;
Cylindrical body outer edge surface is equipped with a metal hollow round bush in this eccentric cam, and the endoporus wall of this metal hollow round bush is provided with again an axial snap-latch surface, the outer edge surface of another cylindrical body in this eccentric cam is provided with one again and axially lacks face, limit, after making the cylindrical body of this eccentric cam be set in the endoporus of metal hollow round bush, face, limit can be lacked by the axis on its cylindrical body outer edge surface, with the axial snap-latch surface on this metal hollow round bush endoporus wall, reach and mutually fit tightly and form clip effect, wherein, the hardness number of this metal hollow round bush is equal to or greater than the hardness number of escapement bearing, and the internal diameter yardstick of its endoporus equals the external diameter yardstick of cylindrical body, the external diameter yardstick of this metal hollow round bush equals the internal diameter yardstick in escapement bearing middle (center) bearing hole again, and be that tightness coordinates in the pass of matching of nargin and tolerance combinations both it.
The beneficial effects of the utility model are: the eccentric cam structure improvement providing a kind of diaphragm booster pump, its be eccentric cam in known diaphragm booster pump cylindrical body outer edge surface on be equipped with a metal hollow round bush, the wall of this metal hollow round bush endoporus is provided with an axial snap-latch surface, and in this eccentric cam cylindrical body outer edge surface on be also provided with one and axially lack face, limit, after making the cylindrical body of eccentric cam be set in the endoporus of metal hollow round bush, face, limit can be lacked by the axis on its cylindrical body outer edge surface, and with the axial snap-latch surface on metal hollow round bush endoporus wall, reach and mutually fit tightly and form clip effect, wherein, the hardness number of this metal hollow round bush is equal to or greater than the hardness number of escapement bearing, and both are that tightness coordinates (Interference fit) in the pass of matching of nargin and tolerance combinations, therefore after the rotation start a period of time along with motor force-output shaft can be made, the disappearance of 〝 skidding 〞 each other can not be produced between them, and then each piston start district frequency of three escapement pushing tow diaphragms in escapement seat can not be caused to be lowered, and cause pump head lid hydraulic pressure that water outlet exports, RO film pipe in reverse osmosis water filter can not be met and carry out the shortcoming that required hydraulic pressure force value requirement is filtered in reverse osmosis, also can solve known diaphragm booster pump completely simultaneously, because of boost performance decline and under not reaching the condition of 1 year warranty period, the loss changing diaphragm booster pump new product must be paid.
Accompanying drawing explanation
Fig. 1 is the three-dimensional combination figure of known diaphragm booster pump.
Fig. 2 is the three-dimensional exploded view of known diaphragm booster pump.
Fig. 3 is the sectional drawing of 3-3 line in Fig. 2.
Fig. 4 is the sectional drawing of 4-4 line in Fig. 2.
Fig. 5 is the stereogram of pump head seat in known diaphragm booster pump.
Fig. 6 is the sectional drawing of 6-6 line in Fig. 5.
Fig. 7 is the stereogram of known diaphragm booster pump septation sheet.
Fig. 8 is the sectional drawing of 8-8 line in Fig. 7.
Fig. 9 is the bottom view of known diaphragm booster pump septation sheet.
Figure 10 is the sectional drawing of 10-10 line in Fig. 1.
Figure 11 is one of illustrative view of known diaphragm booster pump.
Figure 12 is the illustrative view two of known diaphragm booster pump.
Figure 13 is the illustrative view three of known diaphragm booster pump.
Figure 14 is the three-dimensional exploded view that the utility model is installed on known diaphragm booster pump.
Figure 15 is three-dimensional exploded view of the present utility model.
Figure 16 is the sectional drawing of 16-16 line in Figure 15.
Figure 17 is the sectional drawing of 17-17 line in Figure 15.
Figure 18 is three-dimensional combination figure of the present utility model.
Figure 19 is the sectional drawing of 19-19 line in Figure 18.
Figure 20 is the sectional drawing of 20-20 line in Figure 18.
Figure 21 is the three-dimensional exploded view that the utility model is installed on escapement seat in known diaphragm booster pump.
Figure 22 is the sectional drawing that the utility model is installed on known diaphragm booster pump.
Figure 23 is the top view of another embodiment of metal hollow round bush in the utility model.
Figure 24 is the top view of another embodiment of eccentric cam in the utility model.
Figure 25 is the combination top view of another embodiment of metal hollow round bush and another embodiment of eccentric cam in the utility model.
In figure, concrete label is as follows:
1-retaining screw 2-fixing bolt
3-nut 10-motor
11-force-output shaft 12,47-radial direction lacks face, limit
20-pump head lid 21-water intake
22-water outlet 23,33, the fixing perforation of 63-
24-scalariform groove 25-dome ring
26-pressurized chamber 27-high pressure hydroecium
30-motor protecgulum 31-bearing
32-epirelief annulus 40-eccentric cam
41-orlo 42-cylindrical body
43-horizontal top surface 44-sloped top face
45-side end face 46-axis hole
48-axially lacks the axial raised line of face, limit 49-
50-escapement seat 51-escapement bearing
52-bearing hole 53-escapement
54-tapped hole 55-locates concave ring groove
60-pump head seat 61-start is bored a hole
Dome ring 70-diaphragm under 62-
Raised line in the outer raised line 72-of 71-
73-fin 74-piston start district
75-central perforation 76-positioning convex ring block
80-piston thrust block 81-shoulder hole
90-piston valve body 91-ring raised line
92-drainage seat 93-positioning hole
94-non-return rubber cushion 95-weep hole
96-influent base 97-water inlet
98-piston sheet 400-metal hollow round bush
The axial snap-latch surface of 401-endoporus 402-
403-axial notch C1, C2-central axis
D1, D4-internal diameter yardstick D2, D3-external diameter yardstick
W-tap water Wp-high pressure water.
Embodiment
As Fig. 3, shown in Figure 14 to Figure 20, the eccentric cam structure improvement of the utility model diaphragm booster pump cylindrical body 42 outer edge surface is equipped with a metal hollow round bush 400(in eccentric cam 40 as shown in Figure 18 to Figure 20), the wall of this metal hollow round bush 400 endoporus 401 is separately provided with an axial snap-latch surface 402, and in eccentric cam 40 cylindrical body 42 outer edge surface on be also provided with one and axially lack face, limit 48, after making the cylindrical body 42 of this eccentric cam 40 be set in the endoporus 401 of metal hollow round bush 400, face, limit 48 can be lacked by the axis on its cylindrical body 42 outer edge surface, and with the axial snap-latch surface 402 on metal hollow round bush 400 endoporus 401 wall, reach and mutually fit tightly and form clip effect, wherein, the hardness number of this metal hollow round bush 400 is equal to or greater than the hardness number of escapement bearing 51 in escapement seat 50, and the internal diameter yardstick D1 of its endoporus 401 equals the external diameter yardstick D2(of cylindrical body 42 as shown in FIG. 16 and 17), the external diameter yardstick D3 of this metal hollow round bush 400 another equals the internal diameter yardstick D4(of escapement bearing 51 axis bearing bore 52 as shown in Figure 16 and Fig. 3), and both are that tightness coordinates (Interference fit) in the pass of matching of nargin and tolerance combinations.
As shown in Figure 21 and Figure 22, due to cylindrical body 42 outer edge surface of eccentric cam in the utility model 40 being equipped with a metal hollow round bush 400, after the force-output shaft 11 of motor 10 rotarily drives eccentric cam 40, axis in this eccentric cam 40 on cylindrical body 42 outer edge surface lacks face, limit 48, can by the axial snap-latch surface 402 on metal hollow round bush 400 endoporus 401 wall, really metal hollow round bush 400 synchronous axial system is made, and at the external diameter of this metal hollow round bush 400 and the bearing hole 52 of escapement bearing 51 under tightness coordinates (Interference fit), three of escapement seat 50 escapements 53 can be made also really to produce sequentially in upper and lower reciprocal start, and reach three piston start district 74 sequentially up pushing tow and past drop-down starts of upper and lower displacement repeatedly effect (as shown in figure 22) in diaphragm 70, moreover, hardness number because of metal hollow round bush 400 is equal to or greater than the hardness number of escapement bearing 51, after making the rotation start a period of time along with motor 10 force-output shaft 11, the 〝 skidding 〞 that can not produce between them each other lacks, and then the frequency in each piston start district 74 in three escapement 53 pushing tow diaphragms 70 also can not be caused to reduce, and pump head lid 20 water outlet 22 export hydraulic pressure, RO film pipe in reverse osmosis water filter can not be met and carry out the requirement phenomenon that required hydraulic pressure force value is filtered in reverse osmosis, therefore, the utility model can solve known diaphragm booster pump completely, because producing 〝 skidding 〞 between the cylindrical body 42 of eccentric cam 40 and the escapement bearing 51 of escapement seat 50, cause boost performance decline and under not reaching the condition of 1 year warranty period, the loss changing diaphragm booster pump new product must be paid.
Continue as shown in Figure 23 to Figure 25, in above-mentioned the utility model, the wall of this metal hollow round bush 400 endoporus 401 changes the axial notch 403 of the several symmetry of recessed one-tenth, and in this eccentric cam 40 cylindrical body 42 outer edge surface on also synchronously change projection and become the axial raised line 49 of several symmetry, after making the cylindrical body 42 of this eccentric cam 40 be set in the endoporus 401 of metal hollow round bush 400, still can by the several symmetry axis on its cylindrical body 42 outer edge surface to raised line 49, and with the several symmetrical axial notch 403 on metal hollow round bush 400 endoporus 401 wall, reach and mutually fit tightly and form clip effect.
In sum, the utility model, to construct the most easily, is got rid of the 〝 skidding 〞 that in known diaphragm booster pump, between eccentric cam and escapement bearing, transmission produces and is lacked, and really have high industrial usability and practicability, and meet the important document of utility model patent, be file an application in accordance with the law.
Claims (2)
1. an eccentric cam structure improvement for diaphragm booster pump, comprising:
One motor, its front end central authorities have protruded out a force-output shaft, and on the radial axis body near this force-output shaft end, be provided with a radial scarce face, limit;
One motor protecgulum, is installed on the front end of motor, and its central build-in has a bearing, can place for the force-output shaft of motor and stretch out outside this bearing, separately be convexly equipped with a circle epirelief annulus in outer periphery, and be provided with again several fixing perforation on the inner edge surface of this epirelief annulus;
One eccentric cam, be made up of an orlo and a cylindrical body, and it is shaping with metal material integrated die-casting, or with plastic-steel material Unitary injection formed, wherein, this orlo has a horizontal bottom, one sloped top face and a side end face, linked into an integrated entity by this side end face corral between this horizontal bottom and sloped top face, the vertical projection of this cylindrical body is in the sloped top face of orlo, and have a distance apart between the central axis of this cylindrical body and the central axis of this sloped top face, cylindrical body is made to form eccentric cam in the sloped top face of orlo, separately from the central sloped top face direction toward orlo of the end face of this cylindrical body, run through one again and there is the radial axis hole lacking face, limit, after can placing for the force-output shaft of motor, and lack face, limit with the radial direction on this force-output shaft axis body, produce effect of mutual fastening occlusion,
One escapement seat, its bottom center build-in has an escapement bearing, bearing hole by this escapement bearing can be set on the cylindrical body of eccentric cam, the end face equi-spaced apart arrangement of its pedestal is convexly equipped with three escapements, the end face of each escapement is arranged with a tapped hole, and is arranged with a delineation position concave ring groove again in the periphery of this tapped hole;
One pump head seat, that cover is placed on the epirelief annulus of motor protecgulum, its end face is equipped with three equi-spaced apart and is greater than the start perforation of three escapement external diameters in escapement seat, make three escapements can be placed through in three start perforation, its bottom surface is to having dome ring under a circle again, the yardstick of this lower dome ring is identical with the epirelief annulus yardstick of motor protecgulum, the another end face down convex annular direction near outer periphery, then is equipped with several fixing perforation;
One diaphragm, be placed on the end face of pump head seat, by semi-rigid elastic material ejection formation, its outermost periphery end face is equipped with two circles and parallels opposed outer raised line and interior raised line, and give off three roads by end face central position and to connect with this interior raised line the fin connected, between Shi Gai tri-road fin and interior raised line, three piston start districts have been separated out between quilt, and each piston start district corresponds on the tapped hole position of each escapement end face in escapement seat, respectively be equipped with a central perforation again, and be convexly equipped with a circle positioning convex ring block in the diaphragm bottom surface being positioned at each central perforation,
Three piston thrust blocks, it is placed in three piston start districts of diaphragm respectively, each piston thrust block runs through and is provided with a shoulder hole, three of diaphragm bottom surface positioning convex ring blocks are plugged in the location concave ring groove of three escapements in escapement seat respectively, the shoulder hole into piston thrust block is worn again with retaining screw, and after passing the central perforation in three piston start districts in diaphragm, can diaphragm and three piston thrust blocks be fixed in the tapped hole of three escapements in escapement seat simultaneously;
One piston valve body, its bottom outer peripheral edge side is convexly equipped with a ring raised line downwards, the space between diaphragm China and foreign countries' raised line and interior raised line can be plugged, middle position towards pump head lid direction is provided with a circular drainage seat, and be equipped with a positioning hole in the central authorities of drainage seat, can penetrate fixing for a T-shaped non-return rubber cushion, on the region of the another 120 degree of angular position in each interval centered by this positioning hole, respectively be equipped with several weep hole, and to should in the drainage seat peripheral surface in three area sewerage holes, be equipped with again spaced 120 degree of angles arrangement respectively and opening three influent bases all down, each influent base is equipped with again several water inlet, and place the T-shaped piston sheet of a handstand in the central authorities of each influent base, and
One pump head lid, be covered on pump head seat, its outer edge surface is provided with a water intake, a water outlet and several fixing perforation, a scalariform groove is provided with in the bottom part ring of inner edge surface, assemblying body outer rim after diaphragm and piston valve body are coincided mutually, can be closely attached on this scalariform groove, separately within it edge face central authorities are provided with a circle dome ring;
It is characterized in that: in this eccentric cam, cylindrical body outer edge surface is equipped with a metal hollow round bush, and the endoporus wall of this metal hollow round bush is provided with again an axial snap-latch surface, the outer edge surface of another cylindrical body in this eccentric cam is provided with one again and axially lacks face, limit, after making the cylindrical body of this eccentric cam be set in the endoporus of metal hollow round bush, face, limit can be lacked by the axis on its cylindrical body outer edge surface, with the axial snap-latch surface on this metal hollow round bush endoporus wall, reach and mutually fit tightly and form clip effect, wherein, the hardness number of this metal hollow round bush is equal to or greater than the hardness number of escapement bearing, and the internal diameter yardstick of its endoporus equals the external diameter yardstick of cylindrical body, the external diameter yardstick of this metal hollow round bush equals the internal diameter yardstick in escapement bearing middle (center) bearing hole again, and be that tightness coordinates in the pass of matching of nargin and tolerance combinations both it.
2. the eccentric cam structure improvement of diaphragm booster pump according to claim 1, it is characterized in that: the wall of the endoporus of this metal hollow round bush changes the axial notch of the several symmetry of recessed one-tenth, and in this eccentric cam cylindrical body outer edge surface on also synchronously change the axial raised line that projection becomes several symmetry.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420343646.5U CN204061117U (en) | 2014-06-25 | 2014-06-25 | The eccentric cam structure improvement of diaphragm booster pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420343646.5U CN204061117U (en) | 2014-06-25 | 2014-06-25 | The eccentric cam structure improvement of diaphragm booster pump |
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| Publication Number | Publication Date |
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| CN204061117U true CN204061117U (en) | 2014-12-31 |
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| CN201420343646.5U Expired - Fee Related CN204061117U (en) | 2014-06-25 | 2014-06-25 | The eccentric cam structure improvement of diaphragm booster pump |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106277410A (en) * | 2016-09-30 | 2017-01-04 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier |
| CN106468282A (en) * | 2015-08-21 | 2017-03-01 | 邓元水处理器材（太仓）有限公司 | Pumping bearing arrangement |
| CN107869452A (en) * | 2016-09-26 | 2018-04-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Eccentric structure, pump and water purifier |
| CN113217357A (en) * | 2020-12-21 | 2021-08-06 | 深圳安吉尔饮水产业集团有限公司 | Transmission assembly of pump head of diaphragm booster pump, pump head of diaphragm booster pump and diaphragm booster pump |
-
2014
- 2014-06-25 CN CN201420343646.5U patent/CN204061117U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106468282A (en) * | 2015-08-21 | 2017-03-01 | 邓元水处理器材（太仓）有限公司 | Pumping bearing arrangement |
| CN107869452A (en) * | 2016-09-26 | 2018-04-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Eccentric structure, pump and water purifier |
| CN107869452B (en) * | 2016-09-26 | 2019-12-27 | 珠海格力电器股份有限公司 | Eccentric structure, pump and purifier |
| CN106277410A (en) * | 2016-09-30 | 2017-01-04 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier |
| CN113217357A (en) * | 2020-12-21 | 2021-08-06 | 深圳安吉尔饮水产业集团有限公司 | Transmission assembly of pump head of diaphragm booster pump, pump head of diaphragm booster pump and diaphragm booster pump |
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