阅读说明：本技术 三增压腔隔膜泵的排气结构 (Exhaust structure of three-pressurizing-cavity diaphragm pump ) 是由 蔡应麟 徐兆火 于 2018-05-30 设计创作，主要内容包括：本发明涉及一种三增压腔隔膜泵的排气结构,其是在泵头盖内部,以一道阻隔墙将位于泵头盖内部的最外缘空间区域间隔形成高压水室,并使位于其内部的中央空间区域同步被间隔形成低压水室,另将贴置入泵头盖内部的活塞阀体,于其朝向泵头盖内部的顶面上,以一道阻隔墙将靠近顶面边缘处的空间区域圈围形成排水座,并在其底面上,再向内凹设有三个进水座,每一进水座与顶面之间穿设有数个进水孔,及对应排水座位置的顶面之间穿设有数个排水孔,使得进水座的进水孔位置低于排水孔位置,故能将低压水室进入进水座的空气,因上浮聚集在排水孔位置,而快速地被排入高压水室并经由泵头盖的出水孔排出泵头外。(The invention relates to an exhaust structure of a three-pressurizing-cavity diaphragm pump, which is characterized in that a high-pressure water chamber is formed by spacing an outermost edge space region positioned in a pump head cover through a separation wall, the central space area inside the pump head cover is synchronously formed into a low-pressure water chamber at intervals, the piston valve body stuck inside the pump head cover is arranged on the top surface facing the inside of the pump head cover, a barrier wall is used to surround the space area near the edge of the top surface to form a drainage seat, three water inlet seats are arranged on the bottom surface of the drainage seat and are inwards concave, a plurality of water inlet holes are arranged between each water inlet seat and the top surface in a penetrating way, a plurality of drainage holes are arranged between the top surfaces corresponding to the positions of the drainage seats in a penetrating way, the water inlet hole of the water inlet seat is lower than the water outlet hole, so that the air in the low-pressure water chamber entering the water inlet seat can be quickly discharged into the high-pressure water chamber and discharged out of the pump head through the water outlet hole of the pump head cover due to the floating and gathering at the water outlet hole.)

1. The utility model provides an exhaust structure of three pressure boost chamber diaphragm pumps which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

The pump head cover is a hollow shell, the outer edge surface of the pump head cover is provided with a water inlet, a water outlet and a plurality of fixed through holes, a separation wall is arranged in the bottom surface of the pump head cover, the outermost edge space region positioned in the bottom surface of the pump head cover is separated to form high-pressure water chambers, the central space region positioned in the pump head cover is synchronously separated by the separation wall to form low-pressure water chambers, the high-pressure water chambers are communicated with the water outlet of the pump head cover, and the low-pressure water chambers are communicated with the water inlet of the pump head cover; and

A piston valve body, which is a triangle disk body attached to the inner part of the bottom surface of the pump head cover, the top surface facing the inner part of the bottom surface of the pump head cover is also provided with a separation wall, the space area near the edge of the top surface is encircled to form a drainage seat, the separation wall is mutually corresponding to the separation wall in the bottom surface of the pump head cover, the top surface is provided with three positioning hole columns near the separation wall and at the position with an included angle of 120 degrees, three water inlet seats are concavely arranged on the bottom surface of the piston valve body with the three positioning hole columns as the center, a plurality of water inlet holes are arranged between each water inlet seat and the top surface, a plurality of water outlet holes are arranged between each water inlet seat and the top surface corresponding to the drainage seat, an inverted T-shaped piston sheet is arranged in each positioning hole column, a non-return rubber gasket is embedded on the top surface at the position of each plurality of water outlet holes, and the inverted T-shaped piston sheet can block the plurality of water inlet holes on the water inlet seats, the check rubber pad can block a plurality of water discharge holes on the water inlet seat.

2. The exhaust structure of a three-chamber diaphragm pump according to claim 1, wherein: an annular sealing rubber strip is further arranged in the center of the top surface of the separation wall of the pump head cover in a plugging mode.

Technical Field

the invention relates to a triple-pressurizing-cavity diaphragm pump arranged in a reverse osmosis water purifier (reverse osmosis purification), in particular to a diaphragm pump which can quickly and effectively discharge air in a pipeline in the reverse osmosis water purifier completely after entering a pump head of the triple-pressurizing-cavity diaphragm pump, and can not generate defects of noise increase of the action of the pump head and water output reduction of the pump head caused by the fact that the air stays in the pump head.

Background

Currently, a three-pressure chamber diaphragm pump specially used for a reverse osmosis water purifier is disclosed in U.S. patent nos. 4396357, 4610605, 5476367, 5571000, 5615597, 5626464, 5649812, 5706715, 5791882, 5816133, 6089838, 6299414, 6604909, 6840745, and 6892624, and the structure thereof is shown in fig. 1 to 18, and is composed of a motor 10, a motor front cover 30, an inclined eccentric cam 40, a wobble wheel seat 50, a pump head seat 60, a diaphragm sheet 70, a three-piston push block 80, a piston valve body 90, and a pump head cover 20; wherein, a bearing 31 is embedded in the center of the motor front cover 30 and is penetrated by the output shaft 11 of the motor 10, a circle of upper convex circular ring 32 is convexly arranged on the outer periphery of the bearing, and a plurality of fixed through holes 33 are arranged on the inner edge surface of the upper convex circular ring 32; a shaft hole 41 is formed through the center of the inclined eccentric cam 40 for being sleeved on the output shaft 11 of the motor 10; a balance wheel bearing 51 is embedded in the center of the bottom of the balance wheel seat 50 for being sleeved on the inclined eccentric cam 40, three balance wheels 52 are convexly arranged on the top surface of the seat body at equal intervals, a threaded hole 54 is concavely arranged on the horizontal top surface 53 of each balance wheel 52, and a circle of positioning concave ring groove 55 is concavely arranged on the periphery of the threaded hole 54 (as shown in fig. 2, 3 and 4); the pump head base 60 is covered on the upper convex ring 32 of the motor front cover 30, the top surface thereof is provided with three actuation through holes 61 which are equally spaced and are larger than the outer diameters of the three balance wheels 52 in the balance wheel base 50, so that the three balance wheels 52 can be arranged in the three actuation through holes 61, the bottom surface thereof is provided with a circle of lower convex ring 62 downwards, the dimension of the lower convex ring 62 is the same as that of the upper convex ring 32 of the motor front cover 30, the top surface close to the outer periphery is provided with a plurality of fixing through holes 63 towards the lower convex ring 62 (as shown in fig. 2, 5 and 6); the diaphragm sheet 70 is placed on the top surface of the pump head seat 60, and is injection-molded by a semi-hard elastic material, and the top surface of the outermost periphery thereof is provided with two circles of outer convex strips 71 and inner convex strips 72 which are parallel and opposite, and three convex strips 73 which are mutually spaced by 120 degrees and are connected with the inner convex strips 72 are radiated from the central position of the top surface, so that three piston actuation areas 74 are spaced between the three convex strips 73 and the inner convex strips 72, and each piston actuation area 74 is corresponding to the threaded hole 54 position of the horizontal top surface 53 of each balance 52 in the balance seat 50, and is respectively provided with a central through hole 75, and a circle of positioning convex ring blocks 76 (as shown in fig. 2, 7, 8 and 9) are convexly arranged on the bottom surface of the diaphragm sheet 70 which is positioned at each central through hole 75; the three-piston push block 80 is respectively placed in the three piston actuating areas 74 of the diaphragm 70, each piston push block 80 is provided with a step hole 81 in a penetrating manner, the three positioning convex ring blocks 76 on the bottom surface of the diaphragm 70 are respectively inserted into the positioning concave ring grooves 55 of the three balance wheels 52 in the balance wheel seat 50, the fixing screws 1 penetrate through the step holes 81 of the piston push block 80 and penetrate through the central through holes 75 of the three piston actuating areas 74 in the diaphragm 70, and then the diaphragm 70 and the three-piston push block 80 can be simultaneously screwed in the threaded holes 54 of the three balance wheels 52 in the balance wheel seat 50 (as shown in the enlarged view in fig. 18); the piston valve body 90 has a ring-shaped protrusion 91 protruding downward from the bottom outer peripheral side surface, which is inserted into the gap between the outer protrusion 71 and the inner protrusion 72 of the diaphragm 70, a circular drainage seat 92 is recessed toward the center of the top surface of the pump head cover 20, a positioning hole 93 is formed through the center of the drainage seat 92, a T-shaped non-return rubber gasket 94 is inserted and fixed, the positioning hole 93 is three areas formed by 120-degree included angles, a plurality of drainage holes 95 are formed through each area, three water inlet seats 96 arranged by 120-degree included angles and having downward openings are respectively connected to the outer peripheral surface of the drainage seat 92 corresponding to the drainage holes 95 of the three areas, a plurality of water inlet holes 97 (shown in fig. 2, 10 to 13) are formed through each water inlet seat 96, and an inverted T-shaped piston plate 98 is further inserted through the center of each water inlet seat 96, the piston plate 98 can block the water inlet holes 97, wherein the water outlet holes 95 in each area of the water outlet seat 92 are respectively communicated with each corresponding water inlet seat 96, and after the annular convex strip 91 at the bottom of the piston valve body 90 is inserted into the gap between the outer convex strip 71 and the inner convex strip 72 of the diaphragm plate 70, three closed pressurizing chambers 26 can be formed between the three water inlet seats 96 and the top surface of the diaphragm plate 70 (as shown in fig. 18 and the enlarged view thereof); as shown in fig. 2, 14 to 18, the pump head cover 20 is covered on the pump head base 60, and has an outer peripheral surface provided with a water inlet 21, a water outlet 22 and a plurality of fixing through holes 23, and a stepped groove 24 is formed at the bottom of the inner peripheral surface in a ring manner, so that the outer periphery of the assembly in which the diaphragm 70 and the piston valve body 90 are overlapped with each other can be closely attached to the stepped groove 24 (as shown in an enlarged view in fig. 18), and a ring of convex ring 25 (as shown in fig. 15) is formed at the center of the inner peripheral surface, the bottom of the convex ring 25 is pressed against the top surface of the outer periphery of the water discharge seat 92 in the piston valve body 90, so that a high pressure water chamber 27 can be formed between the inner wall surface of the convex ring 25 and the water discharge seat 92 of the piston valve body 90, and a low pressure water chamber 28 (as shown in fig. 18 and an enlarged view thereof) is formed simultaneously, wherein, the high pressure water chamber 27 is communicated with the water outlet 22, and the low pressure water chamber 28 is communicated with the water inlet 21 (as shown in fig. 16 and 17); the assembly of the three-chamber diaphragm pump 100 (as shown in fig. 1 and 18) can be completed by the fixing bolts 2 passing through the fixing holes 23 of the pump head cover 20, the fixing holes 63 of the pump head base 60, the nuts 3 inserted into the fixing holes 63 of the pump head base 60, and the fixing holes 33 of the motor front cover 30.

As shown in fig. 19 and 20, in the operation mode of the conventional triple pressurizing chamber diaphragm pump 100, when the output shaft 11 of the motor 10 rotates, the inclined eccentric cam 40 is driven to rotate, and simultaneously the three balance wheels 52 on the balance wheel seat 50 sequentially reciprocate up and down, and the three piston operation areas 74 on the diaphragm sheet 70 are also driven up and down by the three balance wheels 52 to be synchronously and sequentially pushed up and pulled down to generate repeated up and down displacements, so that when the balance wheels 52 move down, the piston operation areas 74 and the piston push blocks 80 of the diaphragm sheet 70 are synchronously pulled down, so that the piston sheet 98 of the piston valve body 90 is pushed away, and the tap water W entering the low pressure water chamber 28 from the water inlet 21 of the pump head cover 20 enters the pressurizing chamber 26 through the water inlet 97 (as shown by an arrow W in fig. 19 and an enlarged view thereof); when the balance 52 pushes upward, the piston actuation areas 74 and the piston push blocks 80 of the diaphragm 70 are also pushed upward synchronously, and the tap water W in the pressurizing chamber 26 is squeezed to increase the water pressure to 80 psi-100 psi, so that the pressurized high-pressure water Wp can push away the check rubber pads 94 on the drain seat 92, and the pressurized high-pressure water Wp sequentially and continuously flows into the high-pressure water chamber 27 through the drain holes 95 of the drain seat 92, and then is discharged out of the three-pressurizing chamber diaphragm pump through the water outlet 22 of the pump head cover 20 (as shown by an arrow Wp in fig. 20 and an enlarged view thereof), thereby providing the water pressure required for the RO membrane tube in the reverse osmosis water filtration machine to perform reverse osmosis filtration.

As shown in fig. 21, the structure of the conventional reverse osmosis water purifier is formed by combining a triple pressurizing chamber diaphragm pump 100, a coarse impurity filter 101, a fine impurity filter 102, an activated carbon filter 103 and a RO membrane tube (reverse osmosis membrane) 104 in a housing 105, wherein, after the coarse impurity filter element 101, the fine impurity filter element 102 and the activated carbon filter element 103 are connected by a water pipe P, the water pipe P1 is connected with the water inlet 21 of the pump head cover 20 of the three-pressurizing chamber diaphragm pump 100, the water pipe P2 is connected with the water outlet 22 of the pump head cover 20 and the RO membrane pipe 104, thereby forming a closed water flow pipeline, and the three-pressurizing cavity diaphragm pump 100 is provided with a bearing seat 110 on the bottom surface of the outer edge of the pump body, a pair of rubber shock absorbing pads 112 are respectively arranged on the wing plates 111 at the two sides of the placing base 110, and the placing base 110 is fixed on the casing 105 by a fixing screw 113 and a nut 114, so that the triple pressurizing chamber diaphragm pump 100 can be horizontally fixed in the housing 105 by the receiving seat 110; when the three-chamber diaphragm pump 100 is activated, the tap water W flows through the coarse impurity filter 101, the fine impurity filter 102 and the activated carbon filter 103 in sequence, so that the impurities and chlorine substances in the tap water W are filtered and adsorbed and removed, respectively, and then the pressurized high-pressure water Wp passes through the three-chamber diaphragm pump 100, enters the RO membrane pipe 104 to filter the heavy metal substances in the high-pressure water Wp by permeation, so as to generate drinkable "" pure water "" and non-drinkable "" waste water "", and flows out from the pure water outlet 104a and the waste water outlet 104b of the RO membrane pipe 104 (as shown by the solid arrow and the dotted arrow of the RO membrane pipe 104 in fig. 21), and finally, the "" pure water "" flows into the water storage pressure tank for storage and drinking through the water pipe P3 connected to the pure water outlet 104a, and flows into the drain pipe of the household through the water pipe P4 connected to the waste water outlet 104 b.

As shown in fig. 21 to 26, the three-chamber diaphragm pump has a serious drawback for a long time, since the water inlet 21 and the water outlet 22 of the pump head cover 20 are connected to the water pipe P1 and the water pipe P2 respectively to form a closed water flow pipeline, when the motor 10 of the three-chamber diaphragm pump 100 is started to perform pressurization or closed to stop pressurization, the high pressure water chamber 27 or the low pressure water chamber 28 of the pump head cover 20 is filled with tap water W (see fig. 22 and 23), but after the service lives of the impurity filter element 101, the fine impurity filter element 102 and the activated carbon filter element 103 are over and the filtering and adsorbing effects are lost, the filter element 101, the fine impurity filter element 102 and the activated carbon filter element 103 which have expired are removed from the water pipe P connected thereto, and then the new filter element 101, the fine impurity filter element 102 and the activated carbon filter element 103 are connected to the water pipes P in sequence. When the motor 10 is restarted to perform pressurization operation, the air a existing inside the newly replaced impurity filter 101, fine impurity filter 102 and activated carbon filter 103 enters the low pressure chamber 28 from the water inlet 21 of the pump head cover 20 along with the water pipe P, and the air a cannot be dissolved in water, so that the air a is totally accumulated in the upper half space of the low pressure chamber 28 (as shown in fig. 24 and 25), at this time, the water inlet seat 96a corresponding to the upper half space position of the low pressure chamber 28 (i.e. the three water inlet seats 96 of the piston valve body 90, one of which is the uppermost water inlet seat 96a, as shown in fig. 24) opens the piston plate 98 inward and synchronously mixes the air a with the tap water W sucked into the pressurization chamber 26a through the water inlet hole 97 (as shown in fig. 26) along with the reciprocating operation of the balance 52, and the air a cannot be dissolved in the tap water W, therefore, the air a entering the pressurizing chamber 26a will be gathered in the upper half space of the pressurizing chamber 26a (as shown in the enlarged view of fig. 26), after the tap water W and the air a in the pressurizing chamber 26a are pressurized by the balance 52 pushing the diaphragm 70, the tap water W will push the non-return rubber mat 94 through the drainage hole 95 and enter the high-pressure water chamber 27 (as shown in the phantom line of fig. 26 stopping the non-return rubber mat 94), but the air a originally gathered in the upper half space of the pressurizing chamber 26a cannot enter the high-pressure water chamber 27 through the drainage hole 95, because the drainage hole 95 is located at the lower half position of the pressurizing chamber 26a, the water inlet 97 is located at the upper half position of the pressurizing chamber 26a, and the air a will be gathered in the upper half space position of the pressurizing chamber 26a, so that the air a cannot be smoothly discharged through the drainage hole 95, as a result, the output water amount of the pressurized chamber 26a is insufficient, and the output water amount of the other two pressurized chambers 26 without the air a entering cannot be reached, so that the pressurized water amount output by the three-pressurized-chamber diaphragm pump 100 never reaches one hundred percent.

in addition, the air a collected in the upper half space of the pressurizing chamber 26a causes the piston plate 98 to continuously flap air to generate noise and increase vibration of the entire head cover 20 during repeated operations of opening and closing the water inlet 97 inward, which are all caused by the fact that the water inlet 97 penetrating between the low pressure water chamber 28 and the pressurizing chamber 26a is positioned higher than the water outlet 95 penetrating between the high pressure water chamber 27 and the pressurizing chamber 26a (as shown in fig. 27), so that the head cover 20 cannot have a function of rapid and efficient air exhaust, and all commercially available three-pressurizing-chamber diaphragm pumps 100 cannot overcome the defect.

Disclosure of Invention

The technical content of the invention is as follows: an exhaust structure of a three-pressurization-cavity diaphragm pump comprises a pump head cover which is a hollow shell, wherein the outer edge surface of the pump head cover is provided with a water inlet, a water outlet and a plurality of fixing through holes, a separation wall is arranged inside the bottom surface of the pump head cover, the outermost edge space region inside the bottom surface of the pump head cover is separated to form a high-pressure water chamber, the central space region inside the pump head cover is synchronously separated by the separation wall to form a low-pressure water chamber, the high-pressure water chamber is communicated with the water outlet of the pump head cover, and the low-pressure water chamber is communicated with the water inlet of the pump head cover; and a piston valve body, which is a triangular disk-shaped body attached to the inside of the bottom surface of the pump head cover, and is formed into a water discharge seat by enclosing a space region close to the edge of the top surface on the top surface facing the inside of the bottom surface of the pump head cover, the partition wall and the partition wall in the bottom surface of the pump head cover are mutually corresponding, and the top surface is provided with three positioning hole columns at positions close to the partition wall and mutually spaced by an included angle of 120 degrees, three water inlet seats are concavely arranged on the bottom surface of the piston valve body centering on the three positioning hole columns, a plurality of water inlet holes are arranged between each water inlet seat and the top surface, a plurality of water discharge holes are arranged between each water inlet seat and the top surface corresponding to the position of the water discharge seat in a penetrating manner, an inverted T-shaped piston sheet is arranged in each positioning hole column in a penetrating manner, a non-return rubber pad is embedded on the top surface of each position of the plurality of water discharge holes, and the inverted T-shaped piston sheet can block the plurality of water, the check rubber pad can block a plurality of water discharge holes on the water inlet seat.

The invention has the beneficial effects that: provided is an exhaust structure of a three-pressurizing-chamber diaphragm pump, which includes: the pump head cover is a hollow shell, the outer edge surface of the pump head cover is provided with a water inlet, a water outlet and a plurality of fixed through holes, the inside of the bottom surface of the pump head cover is provided with a separation wall to separate the outermost edge space region positioned inside the bottom surface of the pump head cover to form high-pressure water chambers, and the central space region positioned inside the pump head cover is synchronously separated to form low-pressure water chambers, wherein the high-pressure water chambers are communicated with the water outlet of the pump head cover, and the low-pressure water chambers are communicated with the water inlet of the pump head cover; and a piston valve body, which is a triangular disk-shaped body attached to the inside of the bottom surface of the pump head cover, and is formed into a water discharge seat by enclosing a space region close to the edge of the top surface on the top surface facing the inside of the bottom surface of the pump head cover by a separation wall, the separation wall and the separation wall in the bottom surface of the pump head cover correspond to each other, three positioning hole columns are convexly arranged on the top surface close to the separation wall and at positions spaced by an included angle of 120 degrees, three water inlet seats are concavely arranged on the bottom surface of the piston valve body centering on the three positioning hole columns, a plurality of water inlet holes are arranged between each water inlet seat and the top surface, a plurality of water discharge holes are arranged between each water inlet seat and the top surface corresponding to the position of the water discharge seat in a penetrating manner, an inverted T-shaped piston sheet is arranged in each positioning hole column in a penetrating manner, a non-return rubber gasket is embedded on the top surface of each position of the plurality of water discharge holes, and the inverted T-shaped piston sheet can, the check rubber pad can block a plurality of drain holes on the water inlet seat; the air of the low-pressure water chamber entering the water inlet seat can be quickly discharged into the high-pressure water chamber and discharged out of the pump head through the water outlet hole of the pump head cover after floating and gathering at the position of the water outlet hole by virtue of the fact that the position of the water inlet hole of the water inlet seat is lower than the position of the water outlet hole, and therefore the phenomena that the noise of the actuation of the pump head is increased and the output water quantity of the pump head is reduced because the air stays in the pump head can be completely avoided.

Drawings

Fig. 1 is a perspective assembly view of a conventional triple plenum diaphragm pump.

Fig. 2 is an exploded perspective view of a conventional triple plenum diaphragm pump.

Fig. 3 is a perspective view of a wobble plate seat in a conventional triple pumping chamber diaphragm pump.

Fig. 4 is a cross-sectional view taken along line 4-4 of fig. 3.

Fig. 5 is a perspective view of a pump head base in a conventional triple pumping chamber diaphragm pump.

Fig. 6 is a cross-sectional view taken along line 6-6 of fig. 5.

Fig. 7 is a perspective view of a diaphragm in a conventional triple plenum diaphragm pump.

Fig. 8 is a cross-sectional view taken along line 8-8 of fig. 7.

Fig. 9 is a bottom view of a diaphragm in a conventional triple plenum diaphragm pump.

Fig. 10 is a perspective view of a piston valve body in a conventional triple pumping chamber diaphragm pump.

Fig. 11 is a cross-sectional view taken along line 11-11 of fig. 10.

Fig. 12 is a top view of a piston valve body in a conventional triple pumping chamber diaphragm pump.

Fig. 13 is a bottom view of a piston valve body in a conventional triple pumping chamber diaphragm pump.

Fig. 14 is a perspective view of a pump head cover in a conventional triple pumping chamber diaphragm pump.

Fig. 15 is a bottom view of a pump head cover in a conventional triple pumping chamber diaphragm pump.

Fig. 16 is a cross-sectional view taken along line 16-16 of fig. 14.

Fig. 17 is a cross-sectional view taken along line 17-17 of fig. 14.

Fig. 18 is an assembled sectional view of a conventional triple plenum diaphragm pump.

FIG. 19 is a schematic sectional view showing the operation of a conventional three-chamber diaphragm pump.

Fig. 20 is a second schematic cross-sectional view of the operation of a conventional three-chamber diaphragm pump.

FIG. 21 is a sectional view of a reverse osmosis water purifier.

FIG. 22 is a third schematic sectional view showing the operation of a conventional three-chamber diaphragm pump.

Fig. 23 is a cross-sectional view taken along line 23-23 of fig. 22.

FIG. 24 is a fourth schematic sectional view showing the operation of a conventional three-chamber diaphragm pump.

Fig. 25 is a cross-sectional view taken along line 25-25 of fig. 24.

FIG. 26 is a fifth schematic sectional view showing the operation of a conventional three-chamber diaphragm pump.

Fig. 27 is a cross-sectional view taken along line 27-27 of fig. 26.

Fig. 28 is a perspective view of the present invention.

Fig. 29 is an exploded perspective view of the present invention.

Fig. 30 is a perspective view of the pump head cover of the present invention.

Fig. 31 is a bottom view of the pump head cover of the present invention.

Fig. 32 is a cross-sectional view taken along line 32-32 of fig. 30.

Fig. 33 is a cross-sectional view taken along line 33-33 of fig. 30.

Fig. 34 is a perspective view of a piston valve body in the present invention.

Fig. 35 is a cross-sectional view taken along line 35-35 of fig. 34.

Fig. 36 is a top view of a piston valve body in the present invention.

Fig. 37 is a bottom view of the piston valve body of the present invention.

Fig. 38 is another perspective view of the piston valve body of the present invention.

Fig. 39 is a cross-sectional view taken along line 39-39 of fig. 38.

FIG. 40 is a schematic view of the pump head cover of the present invention with an annular bead of sealant disposed in the center of the top surface of the barrier wall.

Fig. 41 is an assembled cross-sectional view of the present invention.

Fig. 42 is a cross-sectional view taken along line 42-42 of fig. 41.

FIG. 43 is a schematic view of the present invention in cross section.

Fig. 44 is a cross-sectional view taken along line 44-44 of fig. 43.

FIG. 45 is a second schematic view of the present invention.

Fig. 46 is a cross-sectional view taken along line 46-46 of fig. 45.

FIG. 47 is a third schematic view of the present invention.

Fig. 48 is a cross-sectional view taken along line 48-48 of fig. 47.

Detailed Description

As shown in fig. 28 to 39, the present invention provides an exhaust structure of a three-pressurizing-chamber diaphragm pump, which includes:

A pump head cover 200, which is a hollow shell, and has an outer peripheral surface provided with a water inlet 201, a water outlet 202 and a plurality of fixing through holes 203, and a blocking wall 205 (as shown in fig. 31 and 33) is provided inside a bottom surface 204 thereof, so that the outermost peripheral space region inside the bottom surface 204 of the pump head cover 200 is partitioned into high pressure water chambers 206, and a low pressure water chamber 207 (as shown in fig. 31 and 33) is synchronously partitioned by the blocking wall 205 and formed inside a central space region inside the pump head cover 200, wherein the high pressure water chambers 206 are communicated with the water outlet 202 of the pump head cover 200, and the low pressure water chambers 207 are communicated with the water inlet 201 of the pump head cover 200 (as shown in fig. 31 and 32); and

A piston valve body 300, which is a triangular disk-shaped body attached to the inside of the bottom surface 204 of the pump head cover 200, and which is faced to the top surface 301 of the inside of the bottom surface 204 of the pump head cover 200, and is surrounded by a barrier wall 302 to form a drainage seat 303 (as shown in fig. 34, 35 and 36) near the edge of the top surface 301, the barrier wall 302 and the barrier wall 205 inside the bottom surface 204 of the pump head cover 200 are corresponding to each other (as shown in fig. 36 and 31), the top surface 301 is adjacent to the barrier wall 302 and is spaced apart from each other by an angle of 120 degrees, three positioning hole pillars 304 are convexly provided, three water inlet seats 306 (as shown in fig. 35 and 37) are concavely provided on the bottom surface 305 of the piston valve body 300 centering on the three positioning hole pillars 304, a plurality of water inlet holes 307 are provided between each water inlet seat 306 and the top surface 301, and a plurality of water outlet holes 308 are provided between each water inlet seat 306 and the top surface 301 corresponding to the drainage seat, an inverted-T-shaped piston plate 309 is inserted into each positioning hole column 304, and a non-return rubber pad 310 (as shown in fig. 38) is embedded on the top surface 301 of each position of the plurality of water discharge holes 308, so that the inverted-T-shaped piston plate 309 can block the plurality of water inlet holes 307 on the water inlet base 306, and the non-return rubber pad 310 can block the plurality of water discharge holes 308 (as shown in fig. 39) on the water inlet base 306.

As shown in fig. 29 and 40, after the piston valve body 300 is attached to the bottom surface 204 of the pump head cover 200, the sealing property between the blocking wall 205 of the pump head cover 200 and the blocking wall 302 of the piston valve body 300 is increased, and an annular sealing rubber strip 400 is inserted into the center of the top surface of the blocking wall 205 of the pump head cover 200.

As shown in fig. 41 and 42, the bottom surface 305 of the piston valve body 300 is inserted into the outer protrusion 71 of the conventional diaphragm 70 and then inserted into the bottom surface 204 of the pump head cover 200, so that three closed pressurizing chambers 208 are formed between the three inlet seats 306 and the top surface of the diaphragm 70.

As shown in fig. 21 and fig. 43 to 48, when the air a enters the low pressure chamber 207 from the water inlet 201 of the pump head cover 200 along with the water pipe P, the air a is not dissolved in water and is totally gathered in the upper half space of the low pressure chamber 207 (as shown in fig. 43 and 44), at this time, the water inlet seat 306a corresponding to the upper half space position of the low pressure chamber 207 (i.e., one of the three water inlet seats 306 of the piston valve body 300, which is located at the uppermost position, is shown in the enlarged view of fig. 43), the inverted T-shaped piston plate 309 is opened inward and the air a is simultaneously mixed with the tap water W and is sucked into the pressurizing chamber 208a through the water inlet 307 (as shown in fig. 45 and 46) along with the reciprocating operation of the balance 52, and the air a is also gathered in the upper half space of the pressurizing chamber 208a ((as shown in fig. 46 and 45 are also enlarged views of fig. 45) along with the air a not dissolved tap water W As shown in fig. 47, after the balance 52 pushes the diaphragm 70 to pressurize the tap water W and the air a in the pressurizing chamber 208a, the position of the water discharge hole 308a of the water inlet seat 306a is higher than the position of the water inlet hole 307 (as shown in fig. 47), so the air a quickly pushes the non-return rubber pad 310 away from the water discharge hole 308a along with the pressurized high-pressure water Wp, enters the high-pressure water chamber 206 (as shown in fig. 47 and the enlarged view thereof), and quickly discharges the air out of the pump head cover 200 through the water outlet 202 of the pump head cover 200 (as shown in fig. 48), and thus, the noise of the pump head operation is increased and the water output of the pump head is reduced due to the air staying in the pump head is not generated.

in summary, the present invention achieves the exhaust efficiency of the three-pumping-chamber diaphragm pump with the simplest structure without increasing the overall production cost, and thus has high industrial applicability and practicability.