CN214571102U - Water purification filter core and use its water purification unit with gasbag - Google Patents
Water purification filter core and use its water purification unit with gasbag Download PDFInfo
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- CN214571102U CN214571102U CN202120124746.9U CN202120124746U CN214571102U CN 214571102 U CN214571102 U CN 214571102U CN 202120124746 U CN202120124746 U CN 202120124746U CN 214571102 U CN214571102 U CN 214571102U
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Abstract
The utility model discloses a water purification filter element with an air bag and water purification equipment using the same, which comprises a shell, a PP cotton filter element, a front active carbon filter element, a rear active carbon filter element and an air bag; a first filter cavity and a second filter cavity are arranged in the shell; the top of the shell is also provided with a first water inlet, a first water outlet, a second water inlet and a second water outlet; the air bag is filled with gas; the first water inlet is communicated with a water source, and the first water outlet outputs purified water filtered by the PP cotton filter element and the front activated carbon filter element; purified water filtered by an RO reverse osmosis membrane is input into the second water inlet; and the second water outlet outputs purified water purified by the rear active carbon filter element. The utility model discloses be applied to water purification unit, after the water intaking finishes at every turn, can utilize the pressure of gasbag to carry out the backwash to RO membrane filter core to avoid the higher problem of TDS value of water purification unit first section play water.
Description
Technical Field
The utility model relates to a water purification unit technical field especially relates to a water purification filter core and use its water purification unit with gasbag.
Background
The water purifier comprises a pretreatment filter element, a post-treatment filter element and an RO reverse osmosis filter element in the prior art, wherein water flow needs to pass through the pretreatment filter element, the RO reverse osmosis filter element and the post-treatment filter element successively to complete a purification process, after the RO reverse osmosis filter element is used for a period of time, water in tap water, inorganic salts, heavy metal ions, organic matters, colloids, bacteria, viruses and other impurities are deposited on the outer side of the RO osmosis membrane, pure water filtered by the RO osmosis membrane is positioned on the inner side of the RO osmosis membrane, and when the water purifier is in a standby state for a long time, ions of tap water on the outer side of the RO osmosis membrane and ions of impurity substances in waste water can be gradually diffused into the pure water on the inner side of the RO osmosis membrane, so that the TDS value of the pure water reserved in the RO reverse osmosis filter element is increased; when the pure water output is started again, the TDS value in the effluent of the front section is higher, and the body health of a user is seriously influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a water purification filter core and use its water purification unit with gasbag not only has good filtration purification efficiency, can also finish the back at every water intaking, utilizes the pressure of gasbag to carry out the backwash to the RO membrane filter core to avoid the higher problem of TDS value of water purification unit first segment effluent.
A water purification filter element with an air bag comprises a shell, a PP cotton filter element, a front active carbon filter element, a rear active carbon filter element and the air bag;
a first filtering cavity and a second filtering cavity are arranged in the shell, and the second filtering cavity is positioned below the first filtering cavity; the top of the shell is also provided with a first water inlet, a first water outlet, a second water inlet and a second water outlet;
the front activated carbon filter element and the PP cotton filter element are respectively arranged in the first filter cavity; the inner side surface of the PP cotton filter element surrounds the outer side surface of the front activated carbon filter element;
the rear active carbon filter element and the air bag are respectively arranged in the second filter cavity; the bottom of the air bag is fixed at the bottom of the second filter cavity; the air bag is an elastic body; the air bag is filled with gas;
the first water inlet is communicated with a water source, and the first water outlet outputs purified water filtered by the PP cotton filter element and the front activated carbon filter element; purified water filtered by an RO reverse osmosis membrane is input into the second water inlet; the second water outlet outputs purified water purified by a rear activated carbon filter element;
the balloon is used to store and release pressure by contracting and expanding.
Preferably, the device also comprises a reverse osmosis check valve and a check valve fixing ring;
an installation groove is formed in the water inlet pipeline below the second water inlet;
the reverse osmosis check valve and the check valve fixing ring are respectively embedded in the mounting groove, and the reverse osmosis check valve is positioned above the check valve fixing ring;
the top surface of the lower end part of the reverse osmosis check valve is rectangular, the upper end part of the reverse osmosis check valve is a circular ring, and the middle part of the reverse osmosis check valve is in a duckbill shape above a lower circle which gradually shrinks from bottom to top; a water through hole penetrating from bottom to top is formed in the reverse osmosis check valve; the upper end and the lower end of the water through hole are respectively communicated with the second water inlet and the second filtering cavity;
the upper side surface of the annular check valve fixing ring is abutted against the lower side surface of a circular ring at the upper end of the reverse osmosis check valve; the outer side surface of the circular ring at the upper end of the reverse osmosis check valve is abutted against the inner side surface of the circumference of the mounting groove; the upper side surface of a circular ring at the upper end of the reverse osmosis check valve is abutted against the upper side surface of the mounting groove, and the lower side surface of the check valve fixing ring is abutted against the lower side surface of the mounting groove;
the reverse osmosis check valve is an elastic body.
Preferably, the device also comprises a middle partition plate, an inner cylinder and an inner cylinder cover;
the middle partition plate, the inner cylinder and the inner cylinder cover are all arranged in the shell;
the shell comprises an upper shell and a lower cover, and the inner side surface of the lower end of the upper shell is in threaded connection with the outer side surface of the lower cover; the inner side surface of the upper shell and the inner side surface of the lower cover are enclosed to form the first filter cavity;
the circumferential edge of the middle partition plate extends downwards and is connected with the upper end part of the inner cylinder; the lower end part of the inner cylinder is in threaded connection with the edge extending upwards of the inner cylinder cover; the lower end of the inner cylinder presses the bottom edge of the air bag to the inner cylinder cover;
the middle partition plate, the inner cylinder and the inner cylinder cover enclose to form the second filtering cavity.
Preferably, the device also comprises an upper baffle plate, wherein the middle part of the upper baffle plate is provided with a first annular hole protruding upwards;
the middle part of the inner upper side surface of the upper shell is adjacently sleeved with an annular first diversion trench and an annular second diversion trench from the circumferential center, and the notch of the first diversion trench and the notch of the second diversion trench face downwards;
the first water inlet is positioned above the groove top of the first diversion groove and communicated with the first diversion groove; the first water outlet is positioned above the groove top of the second diversion groove and communicated with the second diversion groove;
a plurality of reinforcing ribs protruding downwards are further arranged on the inner upper side surface of the upper shell, and a gap is formed between every two adjacent reinforcing ribs;
the upper side surface of the front activated carbon filter element and the upper side surface of the PP cotton filter element respectively abut against the lower side surface of the upper partition plate; the upper end of the first annular hole is clamped in the second diversion groove, and a sealing ring is sleeved between the outer side surface of the upper end of the first annular hole and the inner side surface of the second diversion groove; the circumferential edge of the upper partition plate protrudes downwards and surrounds the outer side surface of the upper end of the PP cotton filter element;
the lower side surface of the front activated carbon filter element and the lower side surface of the PP cotton filter element respectively support against the upper side surface of the middle partition plate; the circumferential edge of the middle partition plate protrudes upwards and surrounds the outer side face of the lower end of the PP cotton filter element;
the first water inlet is communicated with the gap between the outer side surface of the PP cotton filter element and the inner side surface of the upper shell through the first flow guide groove and the gap between the two adjacent reinforcing ribs in sequence from top to bottom;
and the first water outlet is communicated with the gap surrounded by the second diversion trench, the first annular hole and the inner side surface of the front activated carbon filter element from top to bottom in sequence.
Preferably, the device also comprises an inner middle cover and a first guide pipe;
a third diversion trench with a downward notch is further formed in the middle of the inner upper side face of the upper shell, and the third diversion trench is adjacent to the second diversion trench; the second water inlet is positioned above the groove top of the second diversion groove and communicated with the second diversion groove;
the middle part of the inner middle cover extends downwards to form a lower clamping groove with an upward notch; the upper side surface of the inner middle cover is also provided with a plurality of convex strips protruding upwards, a gap is arranged between every two adjacent convex strips, and both ends of each convex strip are free ends;
the middle part of the middle partition board is provided with a middle clamping groove with an upward opening; the groove body at one side of the middle clamping groove close to the center extends downwards and is clamped in the lower clamping groove, and a plurality of flow guide holes are formed in the bottom of the middle clamping groove;
the upper end of the first flow guide pipe is clamped in the third flow guide groove, and a sealing ring is sleeved between the outer side surface of the upper end part of the first flow guide pipe and the inner side surface of the third flow guide groove, which is adjacent to the second flow guide groove; the lower end of the first flow guide pipe is clamped in the middle clamping groove;
the second water inlet loops through the third guiding gutter from top to bottom first honeycomb duct, water conservancy diversion hole, many clearance between the sand grip, with the lateral surface of rearmounted active carbon filter core with clearance between the circumference medial surface of inner tube is linked together.
Preferably, the device also comprises a second flow guide pipe and a third flow guide pipe;
a fourth diversion trench with a downward notch is further arranged in the middle of the inner upper side surface of the upper shell, and the outer side surface, facing the center, of the trench body on one side of the third diversion trench close to the center and the inner upper side surface of the top of the upper shell surround to form the fourth diversion trench;
the second water outlet is positioned above the groove top of the fourth diversion groove and communicated with the fourth diversion groove;
the upper end of the third flow guide pipe is clamped in the fourth flow guide groove, and a sealing ring is sleeved between the outer side surface of the upper end part of the third flow guide pipe and the inner side surface of the fourth flow guide groove;
a plurality of clamping teeth are arranged on the outer circumferential side surface of the lower end of the third flow guide pipe at intervals, gaps are formed among the clamping teeth, and the clamping teeth are clamped in the middle clamping groove;
the upper end of the second flow guide pipe is clamped in the third flow guide pipe, and the lower end of the second flow guide pipe is clamped in the lower clamping groove;
and the second water outlet is communicated with a gap surrounded by the inner side surface of the rear active carbon filter element through a third flow guide pipe and a second flow guide pipe in sequence from top to bottom.
Preferably, the device further comprises a lower baffle plate;
the lower partition plate is arranged between the lower side surface of the rear activated carbon filter element and the upper side surface of the air bag, the upper side surface of the lower partition plate is abutted against the lower side surface of the rear activated carbon filter element, and the lower side surface of the lower partition plate is abutted against the top of the air bag;
the middle part of the upper side surface of the lower partition plate is provided with a circular ring, and the circular ring which protrudes upwards extends into the lower part of a gap surrounded by the inner side surface of the rear active carbon filter element;
the circumferential edge of the inner middle cover extends downwards to wrap the outer side surface of the upper end of the rear active carbon filter element;
the lower end of the lower clamping groove extends downwards and is positioned at the upper part of a gap surrounded by the inner side surface of the rear active carbon filter element;
the middle part of the lower side surface of the lower partition plate is provided with a circular groove which is sunken upwards, and the top of the air bag is abutted against the groove.
Preferably, the PP cotton filter element is made of folded annular PP cotton; the air bag is an edible silicone rubber body; the air bag is integrally formed, and the circumferential outer side surface far away from the center is abutted against the circumferential inner side surface of the inner barrel when the air bag is full of air and is not subjected to external pressure.
Furthermore, a water purification device comprising an RO reverse osmosis filter element and the above water purification filter element with the air bag is not practical and novel; and a reverse osmosis check valve is arranged on a water inlet pipeline of the second water inlet.
The utility model has the advantages that: the water purification filter element with the air bag comprises a PP cotton filter element, a front activated carbon filter element and a rear activated carbon filter element, and triple water purification and filtration functions are realized in one filter element; and set up the gasbag at the second filter chamber, can utilize the pressure of gasbag to carry out the backwash to the RO membrane filter core after the water intaking finishes at every turn to avoid the higher problem of TDS value of the first section play water of purifier.
Drawings
Fig. 1 is a schematic sectional view of a water purification cartridge with an air bag according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is an exploded view of the water purification cartridge of FIG. 1 with the bladder;
FIG. 4 is a schematic radial flow view of the first filter chamber of FIG. 1;
FIG. 5 is a schematic radial flow view of the second filter chamber of FIG. 1;
FIG. 6 is a schematic cross-sectional view of the upper shell of FIG. 1 in an opposite view;
FIG. 7 is a bottom view of the upper shell of FIG. 6;
fig. 8 is a schematic view of a pipeline connection of a water purification apparatus according to an embodiment of the present invention;
wherein: a housing 1; a PP cotton filter element 2; a front activated carbon filter element 3; a rear active carbon filter element 4; an air bag 5; an upper case 11; a lower cover 12; a silica gel pad 13; a bottom edge 51; an upper partition plate 101; a middle partition plate 102; an inner barrel 103; an inner cylinder cover 104; a reverse osmosis check valve 105; a check valve fixing ring 106; a first water inlet 111; a first water outlet 112; a second water inlet 113; a second water outlet 114; a reinforcing rib 115; a handle 121; an inner middle cover 201; a lower partition 202; a first draft tube 301; a second draft tube 302; a third draft tube 303; a first guiding gutter 1111; an annular second guiding gutter 1121; third guide channel 1131 and fourth guide channel 1141.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solution of the present invention will be further explained with reference to fig. 1-8.
A water purification filter element with an air bag comprises a shell 1, a PP cotton filter element 2, a preposed activated carbon filter element 3, a postposition activated carbon filter element 4 and an air bag 5;
a first filter cavity and a second filter cavity are arranged in the shell 1, and the second filter cavity is positioned below the first filter cavity; the top of the shell 1 is also provided with a first water inlet 111, a first water outlet 112, a second water inlet 113 and a second water outlet 114;
the front activated carbon filter element 3 and the PP cotton filter element 2 are respectively arranged in the first filter cavity; the inner side surface of the PP cotton filter element 2 surrounds the outer side surface of the front activated carbon filter element 3;
the rear active carbon filter element 4 and the air bag 5 are respectively arranged in the second filter cavity; the bottom of the air bag 5 is fixed at the bottom of the second filter cavity; the air bag 5 is an elastic body; the air bag 5 is filled with gas;
the first water inlet 111 is communicated with a water source, and the first water outlet 112 outputs purified water filtered by the PP cotton filter element 2 and the front activated carbon filter element 3; purified water filtered by an RO reverse osmosis membrane is input into the second water inlet 113; the second water outlet 114 outputs purified water purified by the rear active carbon filter element 4.
The balloon is used to store and release pressure by contracting and expanding.
As shown in fig. 1-6, the water purification cartridge with air bag of the present invention has a first filter chamber equipped with the front activated carbon cartridge 3 and the PP cotton cartridge 2, a second filter chamber equipped with the rear activated carbon cartridge 4 and the air bag 5, the first water inlet 111 is connected to the water source of tap water, and the first water outlet 112 outputs purified water filtered by the PP cotton cartridge 2 and the front activated carbon cartridge 3; purified water filtered by an RO reverse osmosis membrane is input into the second water inlet 113; the second water outlet 114 outputs purified water purified by the rear activated carbon filter element 4 and is communicated with a purified water output valve; the second-stage purified water discharged from the first water outlet 112 enters the RO reverse osmosis filter element for filtration, then enters the second filter cavity from the second water inlet 113, is filtered by the rear activated carbon filter element 4, and then is delivered to the purified water output valve for use from the second water outlet 114.
Fig. 4 is a water flow circuit diagram of the first filter chamber, fig. 5 is a water flow circuit diagram of the second filter chamber, and fig. 8 is a schematic diagram of the water purification filter element with the air bag, the RO filter element and the purified water output pipeline.
The principle of back flushing the osmosis membrane of the RO permeate filter cartridge is as follows:
as shown in the schematic pipeline diagram of fig. 8, after the user finishes taking water, the purified water output valve is closed, and at this time, the output of the discharged water from the second water outlet 114 stops, in order to implement the reverse flushing of the RO reverse osmosis filter element, the water purification apparatus will continue to produce water, and the purified water produced by the RO reverse osmosis filter element will enter the second filter chamber through the second water inlet 113, because the water pressure in the second filter chamber is continuously increased, the air bag 4 is reduced due to the pressure, and the air bag 4 stores the pressure by shrinking; stopping water production after a certain time or when the pressure in the water purifying equipment reaches the threshold value of the high-pressure switch; gasbag 4 exerts pressure through the inflation to the pure water in the second filter chamber this moment, makes the pure water in the second filter chamber flow backward from the second water inlet to carry out the backwash to the RO membrane filter core, avoided RO reverse osmosis filter core at the in-process of standby like this effectively, the waste water before the membrane causes the pollution through the pure water behind the osmosis to the membrane, and then when having avoided the next water, the higher problem of TDS value of first section play water.
Therefore, the water purification filter core with gasbag not only has the triple water purification filtering capability of the cotton filter core of PP 2, leading active carbon filter core 3 and rearmounted active carbon filter core 4, still can store and release pressure through the shrink and the inflation of gasbag 4 to carry out the backwash to RO reverse osmosis filter core at the in-process of water purification unit standby, thereby avoid the higher problem of water purification unit's first segment play water TDS value.
Preferably, the reverse osmosis water purifier also comprises a reverse osmosis check valve 105 and a check valve fixing ring 106;
an installation groove is formed in the water inlet pipeline below the second water inlet 113;
the reverse osmosis check valve 105 and the check valve fixing ring 106 are respectively embedded in the installation grooves, and the reverse osmosis check valve 105 is positioned above the check valve fixing ring 106;
the top surface of the lower end part of the reverse osmosis check valve 105 is rectangular, the upper end part of the reverse osmosis check valve 105 is a circular ring, and the middle part of the reverse osmosis check valve 105 is in a duckbill shape above a lower circle which gradually reduces from bottom to top; a water through hole penetrating from bottom to top is formed in the reverse osmosis check valve 105; the upper end and the lower end of the water through hole are respectively communicated with the second water inlet 113 and the second filtering cavity;
the upper side surface of the circular check valve fixing ring 106 is abutted against the lower side surface of a circular ring at the upper end of the reverse osmosis check valve 105; the outer side surface of the circular ring at the upper end of the reverse osmosis check valve 105 is abutted against the inner side surface of the circumference of the mounting groove; the upper side surface of a circular ring at the upper end of the reverse osmosis check valve 105 is abutted against the upper side surface of the mounting groove, and the lower side surface of the check valve fixing ring 106 is abutted against the lower side surface of the mounting groove;
the reverse osmosis check valve 105 is an elastomer.
After the user finishes taking water, the purified water output valve is closed, the output of the discharged water of the second water outlet 114 is stopped at the moment, in order to realize the reverse flushing of the RO reverse osmosis filter element, the water purifying equipment can continue to produce water, and the purified water produced by the RO reverse osmosis filter element can enter the second filter cavity through the second water inlet 113, and as the water pressure in the second filter cavity is continuously increased, the air bag 4 is reduced due to the pressure, and the air bag 4 stores the pressure through the contraction; stopping water production after a certain time or when the pressure in the water purifying equipment reaches the threshold value of the high-pressure switch; at the moment, the airbag 4 pressurizes pure water in the second filtering cavity through expansion, the water pressure below the reverse osmosis check valve 105 is higher than the water pressure above the reverse osmosis check valve, the middle part of the reverse osmosis check valve 105 is compressed towards the center by pressure, the water through hole is narrowed but reverse purified water can still permeate through the reverse osmosis check valve 105, the purified water reversely flows into the RO reverse osmosis filter element from the lower part of the reverse osmosis check valve 105 through the reverse osmosis check valve 105, the pressure of reverse water flow is rapidly reduced and forms trickle to reach the rear side of the RO osmosis membrane, then the RO osmosis membrane is reversely cleaned, the pressure of the trickle reverse water flow is low, the RO osmosis membrane is not damaged, and therefore, the RO osmosis membrane is clean and cannot be damaged, the pollution of waste water in front of the membrane on the pure water behind the membrane in the standby process of the RO reverse osmosis filter element is effectively avoided, and further the next water use is avoided, the TDS value of the first-stage effluent is high.
Preferably, the device also comprises a middle partition plate 102, an inner cylinder 103 and an inner cylinder cover 104;
the middle partition plate 102, the inner cylinder 103 and the inner cylinder cover 104 are all arranged in the shell;
the shell 1 comprises an upper shell 11 and a lower cover 12, wherein the inner side surface of the lower end of the upper shell 11 is in threaded connection with the outer side surface of the lower cover 12; the inner side surface of the upper shell 11 and the inner side surface of the lower cover 12 enclose to form the first filter cavity;
the circumferential edge of the middle partition plate 102 extends downwards and is in threaded connection with the upper end part of the inner cylinder 103; the lower end part of the inner cylinder 103 is in bolt connection with the edge extending upwards of the inner cylinder cover 104; the lower end of the inner cylinder 103 presses the bottom edge of the air bag 5 to the inner cylinder cover 104;
the second filter chamber is formed by the closing of the middle partition plate 102, the inner cylinder 103 and the inner cylinder cover 104.
The second filter chamber is arranged in the first filter chamber, so that the water purification filter element with the air bag has a more compact structure.
The inner cylinder cover 104 and the lower cover 12 can be unscrewed, and the convenience of cleaning, pollution discharge and maintenance of the water purification filter element with the air bag can be improved.
The downside of the lower tip of interior cover 104 with the interior side of going up of lower cover 12 support respectively in the last side and the downside of the base 51 of gasbag 5 can improve the leakproofness of second filter chamber, improve the stability of the leakproofness and the pressure of gasbag 5, and then improve the cleanliness factor of the purified water of the water purification filter core output that has the gasbag and the stability of the function of improvement reverse water pressure.
Preferably, the device also comprises an upper baffle plate 101, wherein the middle part of the upper baffle plate 101 is provided with a first annular hole protruding upwards;
the middle part of the inner upper side surface of the upper shell 1 is adjacently sleeved with an annular first diversion trench 1111 and an annular second diversion trench 1121 from the circumferential center, and the notch of the first diversion trench 1111 and the notch of the second diversion trench 1121 face downwards;
the first water inlet 111 is positioned above the tank top of the first guide groove 1111, and the first water inlet 111 is communicated with the first guide groove 1111; the first water outlet 112 is located above the top of the second guiding gutter 1121, and the first water outlet 112 is communicated with the second guiding gutter 1121;
a plurality of reinforcing ribs 115 protruding downwards are further arranged on the inner upper side surface of the upper shell 1, and a gap is formed between every two adjacent reinforcing ribs 115;
the upper side surface of the front activated carbon filter element 3 and the upper side surface of the PP cotton filter element 2 respectively abut against the lower side surface of the upper partition plate 101; the upper end of the first annular hole is clamped in the second diversion groove 1121, and a sealing ring is sleeved between the outer side face of the upper end of the first annular hole and the inner side face of the second diversion groove 1121; the circumferential edge of the upper partition plate 101 protrudes downwards to surround the outer side surface of the upper end of the PP cotton filter element 2;
the lower side surface of the front activated carbon filter element 3 and the lower side surface of the PP cotton filter element 2 respectively support against the upper side surface of the middle partition plate 102; the circumferential edge of the middle partition plate 102 protrudes upwards to surround the outer side surface of the lower end of the PP cotton filter element 2;
the first water inlet 111 sequentially passes through a gap between the first flow guide groove 111 and two adjacent reinforcing ribs 115 from top to bottom, and is communicated with a gap between the outer side surface of the PP cotton filter element 2 and the inner side surface of the upper shell 11;
the first water outlet 112 is sequentially communicated with the second guiding gutter 1121, the first annular hole and a gap surrounded by the inner side surface of the front activated carbon filter element 3 from top to bottom.
As shown in fig. 7, the first annular hole is clamped in the second guiding groove 1121, and a sealing ring is sleeved between an outer side surface of an upper end of the first annular hole and an inner side surface of the second guiding groove 1121, the inner side surface being close to the first guiding groove 1111; make from first water inlet 111 arrives the inhalant canal of the cotton filter core 2's of PP lateral surface is sealed and unobstructed, can not produce seepage and pollution, has improved the cotton one-level filterable and leading active carbon second grade filterable efficiency of PP with the water purification filter core of gasbag and the purity of purification.
Preferably, the device also comprises an inner middle cover 201 and a first guide pipe 301;
a third diversion trench 1131 with a downward notch is further formed in the middle of the inner upper side surface of the upper shell 1, and the third diversion trench 1131 is arranged adjacent to the second diversion trench 1121; the second water inlet 113 is located above the top of the second guiding gutter 1121, and the second water inlet 113 is communicated with the second guiding gutter 1121;
the middle part of the inner middle cover 201 extends downwards to form a lower clamping groove with an upward notch; the upper side surface of the inner middle cover 201 is also provided with a plurality of convex strips protruding upwards, a gap is arranged between every two adjacent convex strips, and both ends of each convex strip are free ends;
the middle part of the middle partition plate 102 is provided with a middle clamping groove with an upward opening; the groove body at one side of the middle clamping groove close to the center extends downwards and is clamped in the lower clamping groove, and a plurality of flow guide holes are formed in the bottom of the middle clamping groove;
the upper end of the first flow guide pipe 301 is clamped in the third flow guide groove 1131, and a sealing ring is sleeved between the outer side surface of the upper end of the first flow guide pipe 301 and the inner side surface of the third flow guide groove 1131 adjacent to the second flow guide groove 1121; the lower end of the first flow guide pipe 301 is clamped in the middle clamping groove;
the second water inlet 113 sequentially passes through the third flow guide groove 1131 from top to bottom, the first flow guide pipe 301, the flow guide holes and the plurality of the gaps between the convex strips and the gaps between the outer side surface of the rear activated carbon filter element 4 and the inner side surface of the circumference of the inner cylinder 103 are communicated.
By third guiding gutter 1131 first honeycomb duct 301, water conservancy diversion hole, many clearance between the sand grip and the lateral surface of rearmounted active carbon filter 4 with the passageway that the clearance between the circumference medial surface of inner tube 103 formed is for following the RO reverse osmosis purified water that 113 entering of second water inlets provided unobstructed and inclosed water inlet channel, can not be polluted or run off because of the seepage, ensured the filtration efficiency of the rearmounted active carbon filter of the water purification filter core that has the gasbag and the purity of the purified water of output.
Preferably, a second flow guide pipe 302 and a third flow guide pipe 303 are also included;
a fourth diversion trench 1141 with a downward notch is further arranged in the middle of the inner upper side surface of the upper shell 1, and the outer side surface, facing the center, of the trench body on one side of the third diversion trench 1131 close to the center and the inner upper side surface of the top of the upper shell 11 surround to form the fourth diversion trench 1141;
the second water outlet 114 is located above the top of the fourth diversion trench 1141, and the second water outlet 114 is communicated with the fourth diversion trench 1141;
the upper end of the third flow guide pipe 303 is clamped in the fourth flow guide groove 1141, and a sealing ring is sleeved between the outer side surface of the upper end of the third flow guide pipe 303 and the inner side surface of the fourth flow guide groove 1141;
a plurality of clamping teeth are arranged on the outer circumferential side surface of the lower end of the third flow guide pipe 303 at intervals, gaps are formed among the clamping teeth, and the clamping teeth are clamped in the middle clamping groove;
the upper end of the second flow guide pipe 302 is clamped in the third flow guide pipe 303, and the lower end of the second flow guide pipe 302 is clamped in the lower clamping groove;
the second water outlet 114 is communicated with the gap surrounded by the inner side surface of the rear active carbon filter element 4 through a third flow guide pipe 303 and a second flow guide pipe 302 from top to bottom in sequence.
The third flow guide pipe 303, the second flow guide pipe 302 and the channel formed by the gap surrounded by the inner side surface of the rear activated carbon filter element 4 provide smooth and closed channels for the four-stage purified water output by the second water outlet 114, and the four-stage purified water cannot be polluted or run off due to leakage, so that the purity of the purified water output by the second water outlet 114 of the water purification filter element with the air bag is ensured.
Preferably, a lower baffle plate 202 is further included;
the lower partition plate 202 is installed between the lower side surface of the rear activated carbon filter element 4 and the upper side surface of the air bag 5, the upper side surface of the lower partition plate 202 is abutted against the lower side surface of the rear activated carbon filter element 4, and the lower side surface of the lower partition plate 202 is abutted against the top of the air bag 5;
the middle part of the upper side surface of the lower clapboard 202 is provided with a circular ring, and the circular ring which protrudes upwards extends into the lower part of the gap surrounded by the inner side surface of the rear active carbon filter element 4;
the circumferential edge of the inner middle cover 201 extends downwards to wrap the outer side surface of the upper end of the rear active carbon filter element 4;
the lower end of the lower clamping groove extends downwards and is positioned at the upper part of a gap surrounded by the inner side surface of the rear active carbon filter element 4;
the middle part of the lower side surface of the lower clapboard 202 is provided with a circular groove which is sunken upwards, and the top of the air bag 5 is propped against the groove.
Such setting has improved the leakproofness and the fixed stability at rear-mounted active carbon filter 4 upper and lower both ends can avoid rear-mounted active carbon filter 4 and gasbag 5 slide all around and influence the leakproofness, have further ensured the stability of the operation of the water purification filter core that has the gasbag and the purity of the water purification of output.
Therefore, through the water purification filter core with gasbag has the pressure that can reduce reverse rivers and wash the rivers of RO reverse osmosis membrane and the function of the velocity of flow to can improve the life of RO infiltration filter core makes and installs the water purification system of water purification filter core with gasbag has the self-cleaning performance of circulation of RO osmotic membrane to the purity of the purified water of output is high. Preferably, the outer lower side of the lower cover 12 is provided with a handle 121 protruding downward, and the lower side of the handle 121 is provided with a silicone pad 13.
The lower cover 12 can be opened or closed more conveniently by using the handle 121, and the silicone pad 13 not only can play a role in preventing slipping during opening or closing operation, but also can protect the lower cover 12 from being damaged by collision.
Preferably, the PP cotton filter element 2 is made of folded annular PP cotton; the air bag 5 is an edible silicone rubber body; the air bag 5 is integrally formed, and the circumferential outer side surface far away from the center is abutted against the circumferential inner side surface of the inner cylinder 103 when the air bag 5 is filled with air and is not subjected to external pressure.
The material of the PP cotton filter element 2 is folded type annular PP cotton, so that the filter surface area is larger, and the efficiency of the one-level PP cotton filter of the water purification filter element with the air bag can be improved.
The air bag 5 is an edible silicone rubber body which is safe and sanitary and has long service life; the air bag 5 is integrally formed, when the air bag 5 is full of air and is not subjected to external pressure, the circumferential outer side surface of the air bag 5, which is far away from the center, is abutted against the circumferential inner side surface of the inner barrel 103, so that the highest pressure value of water pressure in the second filtering cavity can be improved, and the reverse pressure in the water inlet pipe of the second water inlet 113 is improved.
Furthermore, the utility model also provides a water purification device, which comprises an RO reverse osmosis filter element and the water purification filter element with the air bag; and a reverse osmosis check valve 105 is arranged on a water inlet pipeline of the second water inlet 113.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A water purification filter element with an air bag is characterized by comprising a shell, a PP cotton filter element, a front active carbon filter element, a rear active carbon filter element and the air bag;
a first filtering cavity and a second filtering cavity are arranged in the shell, and the second filtering cavity is positioned below the first filtering cavity; the top of the shell is also provided with a first water inlet, a first water outlet, a second water inlet and a second water outlet;
the front activated carbon filter element and the PP cotton filter element are respectively arranged in the first filter cavity; the inner side surface of the PP cotton filter element surrounds the outer side surface of the front activated carbon filter element;
the rear active carbon filter element and the air bag are respectively arranged in the second filter cavity; the bottom of the air bag is fixed at the bottom of the second filter cavity; the air bag is an elastic body; the air bag is filled with gas;
the first water inlet is communicated with a water source, and the first water outlet outputs purified water filtered by the PP cotton filter element and the front activated carbon filter element; purified water filtered by an RO reverse osmosis membrane is input into the second water inlet; the second water outlet outputs purified water purified by a rear activated carbon filter element;
the balloon is used to store and release pressure by contracting and expanding.
2. The water purification cartridge with air bag of claim 1, further comprising a reverse osmosis check valve and a check valve fixing ring;
an installation groove is formed in the water inlet pipeline below the second water inlet;
the reverse osmosis check valve and the check valve fixing ring are respectively embedded in the mounting groove, and the reverse osmosis check valve is positioned above the check valve fixing ring;
the top surface of the lower end part of the reverse osmosis check valve is rectangular, the upper end part of the reverse osmosis check valve is a circular ring, and the middle part of the reverse osmosis check valve is in a duckbill shape above a lower circle which gradually shrinks from bottom to top; a water through hole penetrating from bottom to top is formed in the reverse osmosis check valve; the upper end and the lower end of the water through hole are respectively communicated with the second water inlet and the second filtering cavity;
the upper side surface of the annular check valve fixing ring is abutted against the lower side surface of a circular ring at the upper end of the reverse osmosis check valve; the outer side surface of the circular ring at the upper end of the reverse osmosis check valve is abutted against the inner side surface of the circumference of the mounting groove; the upper side surface of a circular ring at the upper end of the reverse osmosis check valve is abutted against the upper side surface of the mounting groove, and the lower side surface of the check valve fixing ring is abutted against the lower side surface of the mounting groove;
the reverse osmosis check valve is an elastic body.
3. The water purification cartridge with air bag of claim 1, further comprising a middle partition plate, an inner cartridge and an inner cartridge cover;
the middle partition plate, the inner cylinder and the inner cylinder cover are all arranged in the shell;
the shell comprises an upper shell and a lower cover, and the inner side surface of the lower end of the upper shell is in threaded connection with the outer side surface of the lower cover; the inner side surface of the upper shell and the inner side surface of the lower cover are enclosed to form the first filter cavity;
the circumferential edge of the middle partition plate extends downwards and is connected with the upper end part of the inner cylinder; the lower end part of the inner cylinder is in threaded connection with the edge extending upwards of the inner cylinder cover; the lower end of the inner cylinder presses the bottom edge of the air bag to the inner cylinder cover;
the middle partition plate, the inner cylinder and the inner cylinder cover enclose to form the second filtering cavity.
4. The water purification filter element with the air bag according to claim 3, further comprising an upper baffle plate, wherein the middle part of the upper baffle plate is provided with a first annular hole protruding upwards;
the middle part of the inner upper side surface of the upper shell is adjacently sleeved with an annular first diversion trench and an annular second diversion trench from the circumferential center, and the notch of the first diversion trench and the notch of the second diversion trench face downwards;
the first water inlet is positioned above the groove top of the first diversion groove and communicated with the first diversion groove; the first water outlet is positioned above the groove top of the second diversion groove and communicated with the second diversion groove;
a plurality of reinforcing ribs protruding downwards are further arranged on the inner upper side surface of the upper shell, and a gap is formed between every two adjacent reinforcing ribs;
the upper side surface of the front activated carbon filter element and the upper side surface of the PP cotton filter element respectively abut against the lower side surface of the upper partition plate; the upper end of the first annular hole is clamped in the second diversion groove, and a sealing ring is sleeved between the outer side surface of the upper end of the first annular hole and the inner side surface of the second diversion groove; the circumferential edge of the upper partition plate protrudes downwards and surrounds the outer side surface of the upper end of the PP cotton filter element;
the lower side surface of the front activated carbon filter element and the lower side surface of the PP cotton filter element respectively support against the upper side surface of the middle partition plate; the circumferential edge of the middle partition plate protrudes upwards and surrounds the outer side face of the lower end of the PP cotton filter element;
the first water inlet is communicated with the gap between the outer side surface of the PP cotton filter element and the inner side surface of the upper shell through the first flow guide groove and the gap between the two adjacent reinforcing ribs in sequence from top to bottom;
and the first water outlet is communicated with the gap surrounded by the second diversion trench, the first annular hole and the inner side surface of the front activated carbon filter element from top to bottom in sequence.
5. The water purification cartridge with air bag of claim 4, further comprising an inner middle cap and a first draft tube;
a third diversion trench with a downward notch is further formed in the middle of the inner upper side face of the upper shell, and the third diversion trench is adjacent to the second diversion trench; the second water inlet is positioned above the groove top of the second diversion groove and communicated with the second diversion groove;
the middle part of the inner middle cover extends downwards to form a lower clamping groove with an upward notch; the upper side surface of the inner middle cover is also provided with a plurality of convex strips protruding upwards, a gap is arranged between every two adjacent convex strips, and both ends of each convex strip are free ends;
the middle part of the middle partition board is provided with a middle clamping groove with an upward opening; the groove body at one side of the middle clamping groove close to the center extends downwards and is clamped in the lower clamping groove, and a plurality of flow guide holes are formed in the bottom of the middle clamping groove;
the upper end of the first flow guide pipe is clamped in the third flow guide groove, and a sealing ring is sleeved between the outer side surface of the upper end part of the first flow guide pipe and the inner side surface of the third flow guide groove, which is adjacent to the second flow guide groove; the lower end of the first flow guide pipe is clamped in the middle clamping groove;
the second water inlet loops through the third guiding gutter from top to bottom first honeycomb duct, water conservancy diversion hole, many clearance between the sand grip, with the lateral surface of rearmounted active carbon filter core with clearance between the circumference medial surface of inner tube is linked together.
6. The water purification cartridge with air bag of claim 5, further comprising a second flow guide tube and a third flow guide tube;
a fourth diversion trench with a downward notch is further arranged in the middle of the inner upper side surface of the upper shell, and the outer side surface, facing the center, of the trench body on one side of the third diversion trench close to the center and the inner upper side surface of the top of the upper shell surround to form the fourth diversion trench;
the second water outlet is positioned above the groove top of the fourth diversion groove and communicated with the fourth diversion groove;
the upper end of the third flow guide pipe is clamped in the fourth flow guide groove, and a sealing ring is sleeved between the outer side surface of the upper end part of the third flow guide pipe and the inner side surface of the fourth flow guide groove;
a plurality of clamping teeth are arranged on the outer circumferential side surface of the lower end of the third flow guide pipe at intervals, gaps are formed among the clamping teeth, and the clamping teeth are clamped in the middle clamping groove;
the upper end of the second flow guide pipe is clamped in the third flow guide pipe, and the lower end of the second flow guide pipe is clamped in the lower clamping groove;
and the second water outlet is communicated with a gap surrounded by the inner side surface of the rear active carbon filter element through a third flow guide pipe and a second flow guide pipe in sequence from top to bottom.
7. The water purification cartridge with air bag of claim 6, further comprising a lower partition plate;
the lower partition plate is arranged between the lower side surface of the rear activated carbon filter element and the upper side surface of the air bag, the upper side surface of the lower partition plate is abutted against the lower side surface of the rear activated carbon filter element, and the lower side surface of the lower partition plate is abutted against the top of the air bag;
the middle part of the upper side surface of the lower partition plate is provided with a circular ring, and the circular ring which protrudes upwards extends into the lower part of a gap surrounded by the inner side surface of the rear active carbon filter element;
the circumferential edge of the inner middle cover extends downwards to wrap the outer side surface of the upper end of the rear active carbon filter element;
the lower end of the lower clamping groove extends downwards and is positioned at the upper part of a gap surrounded by the inner side surface of the rear active carbon filter element;
the middle part of the lower side surface of the lower partition plate is provided with a circular groove which is sunken upwards, and the top of the air bag is abutted against the groove.
8. The water purification cartridge with air bag according to claim 3, wherein the lower outer side of the lower cover is provided with a handle protruding downward, and a silicone pad is mounted on the lower side of the handle.
9. The water purification filter element with the air bag as claimed in claim 3, wherein the PP cotton filter element is made of folded annular PP cotton; the air bag is an edible silicone rubber body; the air bag is integrally formed, and the circumferential outer side surface far away from the center is abutted against the circumferential inner side surface of the inner barrel when the air bag is full of air and is not subjected to external pressure.
10. A water purification apparatus comprising an RO reverse osmosis cartridge and a water purification cartridge with a bladder according to any one of claims 1 to 9; and a reverse osmosis check valve is arranged on a water inlet pipeline of the second water inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120124746.9U CN214571102U (en) | 2021-01-18 | 2021-01-18 | Water purification filter core and use its water purification unit with gasbag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120124746.9U CN214571102U (en) | 2021-01-18 | 2021-01-18 | Water purification filter core and use its water purification unit with gasbag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214571102U true CN214571102U (en) | 2021-11-02 |
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ID=78369200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120124746.9U Active CN214571102U (en) | 2021-01-18 | 2021-01-18 | Water purification filter core and use its water purification unit with gasbag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214571102U (en) |
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2021
- 2021-01-18 CN CN202120124746.9U patent/CN214571102U/en active Active
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