Water purifying device with composite filter element

Abstract

The utility model relates to the technical field of water purification devices, in particular to a composite filter element water purification device which comprises a filter assembly, a pressure tank, a booster pump and a faucet, a filter element is arranged in the filter assembly, a first water inlet pipe and a first water outlet pipe are arranged on the outer side and the inner side of the filter element respectively, and a first pressure cavity and a second pressure cavity are formed in the pressure tank. The interior of the first pressure cavity is vertically divided into a first water cavity and a first air cavity through a first rubber air bag. The interior of the second pressure cavity is vertically divided into a second water cavity and a second air cavity through a second rubber air bag. The first water outlet pipe is communicated with the first water cavity, the faucet is communicated with the first water outlet pipe through a second water outlet pipe, and the second water outlet pipe is communicated with the second water cavity through a third water outlet pipe. The water outlet end of the booster pump is communicated with the first water inlet pipe; the first water inlet pipe is provided with a first electromagnetic valve, the second water outlet pipe is provided with a second electromagnetic valve between the third water outlet pipe and the first water outlet pipe, and the third water outlet pipe is provided with a third electromagnetic valve.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purifying device technical field, concretely relates to a composite filter element water purifying device. BACKGROUND

[0002] At present, the filter core of the water purifying equipment in the market is mostly single-function filter core, and the filter water purifier usually adopts single antibacterial PP cotton filter core, activated carbon filter core and ultrafiltration membrane filter core to realize the grading filtration of water flow after being combined to form multistage filter core, so that the ideal water purification effect is achieved. However, the existing composite filter core water purifying device improves the water purification efficiency to a certain extent, but there are still some problems in the actual use process.

[0003] In the prior art, the water purifier with composite filter core is usually equipped with a flushing structure, but the flushing structure is limited to flushing the surface of the filter core and cannot effectively remove the impurities entering the inside of the filter core. The accumulation of these impurities in the filter core will cause the filter core to be blocked, affect the water purification effect, and even cause the filter core to be damaged and shorten the service life of the filter core. Therefore, at present, a part of the flushing structure adopts the backwashing mode to flush the filter core, and the filter core is backwashed by the water in the pressure tank, so as to play the role of cleaning the filter hole of the filter core. However, most of the backwashing functions cannot be used when the user gets water at present, and generally start backwashing when the user does not use water. In this way, when the user gets water for a long time, the filter performance of the filter core will be reduced due to the failure to flush the filter core in time. UTILITARIAN CONTENT

[0004] The utility model aims at providing a composite filter element water purifying device, solving the problem that the backwashing function of the water purifier cannot be used when the user gets water in the prior art.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] The utility model provides a kind of composite filter core water purification device, including filter assembly, pressure tank, booster pump and faucet, filter assembly is provided with filter core, filter assembly is provided with first water inlet pipe and first water outlet pipe respectively placed in the outside and inside of filter core, pressure tank is provided with first pressure chamber and second pressure chamber independent of each other, first pressure chamber is formed into first water chamber and first gas chamber by first rubber air bag up and down separation, second pressure chamber is formed into second water chamber and second gas chamber by second rubber air bag up and down separation;First water outlet pipe and first water chamber are connected, faucet is connected by second water outlet pipe and first water outlet pipe, second water outlet pipe is connected by third water outlet pipe and second water chamber;The water outlet end of booster pump and first water inlet pipe are connected;First water inlet pipe is provided with first solenoid valve, second water outlet pipe is provided with second solenoid valve between third water outlet pipe and first water outlet pipe, third water outlet pipe is provided with third solenoid valve;First water outlet pipe is provided with fourth solenoid valve between first water chamber and second water outlet pipe;The outside of filter core is provided with first waste water pipe and is connected with the outside of filter assembly.

[0007] Further technical solutions are that the first gas chamber is formed into a first upper chamber and a first lower chamber by a third rubber air bag up and down separation, a first electric telescopic rod is vertically installed in the first lower chamber, the output end of the first electric telescopic rod faces upward, and a first push plate is installed at the end of the output end, the first push plate is attached to the lower side of the third rubber air bag; the second gas chamber is formed into a second upper chamber and a second lower chamber by a fourth rubber air bag up and down separation, a second electric telescopic rod is vertically installed in the second lower chamber, the output end of the second electric telescopic rod faces upward, and a second push plate is installed at the end of the output end, the second push plate is attached to the lower side of the fourth rubber air bag.

[0008] Still further technical solutions are that the upper side of the first push plate is provided as a convex ellipsoidal surface.

[0009] Still further technical solutions are that a gas pressure sensor is installed in each of the first upper chamber and the second upper chamber, and two inflation nozzles are installed on the surface of the pressure tank and connected with the first upper chamber and the second upper chamber respectively.

[0010] Still further technical solutions are that the filter assembly includes a first filter barrel and a second filter barrel, the filter core includes a composite filter core and a reverse osmosis membrane filter core, the composite filter core is installed in the first filter barrel, the reverse osmosis membrane filter core is installed in the second filter barrel, the first water outlet pipe is connected with the inner side of the reverse osmosis membrane filter core, the outer side of the reverse osmosis membrane filter core is connected with the inner side of the composite filter core through the second water inlet pipe, and the first water inlet pipe is connected with the outer side of the composite filter core; the first waste water pipe is arranged on the surface of the first filter barrel and connected with the outer side of the composite filter core, the second waste water pipe is arranged on the surface of the second filter barrel and connected with the outer side of the reverse osmosis membrane filter core, and the fifth solenoid valve is arranged on the second waste water pipe.

[0011] Further, the composite filter core is sequentially provided with a PP cotton layer, an activated carbon layer and an ultrafiltration membrane layer from outside to inside.

[0012] Further, the second water outlet pipe is provided with a flow meter between the third water outlet pipe and the faucet.

[0013] Compared with the prior art, the utility model has the beneficial effects that: when the user does not open the faucet to make water, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve are opened, water is pumped into the first water inlet pipe through the booster pump, then enters the filter assembly through the first water inlet pipe to be filtered, and the filtered clean water enters the first water cavity and the second water cavity to be stored through the first water outlet pipe, the second water outlet pipe and the third water outlet pipe, and the volume of the first water cavity and the second water cavity is expanded by pressing the first rubber air bag and the second rubber air bag; when the water making is completed, the third electromagnetic valve and the fourth electromagnetic valve are closed; when the user uses the faucet, water is directly pumped into the filter assembly through the booster pump to be filtered, then enters the faucet through the first water outlet pipe and the second water outlet pipe, after a period of continuous water supply, the backwashing mode is started, the booster pump is closed, the first electromagnetic valve and the second electromagnetic valve are closed, and the third electromagnetic valve and the fourth electromagnetic valve are opened, at this time, the water in the first water cavity is supplied to the faucet through the pressure generated by the contraction of the second rubber air bag through the third water outlet pipe and the second water outlet pipe, and the water in the first water cavity enters the filter assembly from the first water outlet pipe through the pressure generated by the contraction of the first rubber air bag to backwash the filter core, after the washing is completed, the booster pump is started, the first electromagnetic valve and the second electromagnetic valve are opened, and the third electromagnetic valve and the fourth electromagnetic valve are closed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a side sectional view of the utility model composite filter core water purifying device.

[0015] Fig. 2 It is a pressure tank sectional view of the utility model composite filter core water purifying device.

[0016] Icon: 1 - pressure tank, 2 - booster pump, 3 - first water inlet pipe, 4 - first water outlet pipe, 5 - first pressure chamber, 6 - second pressure chamber, 7 - first rubber air bag, 8 - first water chamber, 9 - first air chamber, 10 - second rubber air bag, 11 - second water chamber, 12 - second air chamber, 13 - second water outlet pipe, 14 - third water outlet pipe, 15 - first electromagnetic valve, 16 - second electromagnetic valve, 17 - third electromagnetic valve, 18 - fourth electromagnetic valve, 19 - first waste water pipe, 20 - third rubber air bag, 21 - first upper chamber, 22 - first lower chamber, 23 - first electric telescopic rod, 24 - first push plate, 25 - fourth rubber air bag, 26 - second upper chamber, 27 - second lower chamber, 28 - second electric telescopic rod, 29 - second push plate, 30 - air pressure sensor, 31 - air inlet, 32 - first filter barrel, 33 - second filter barrel, 34 - composite filter element, 35 - reverse osmosis membrane filter element, 36 - second water inlet pipe, 37 - second waste water pipe, 38 - fifth electromagnetic valve, 39 - flow meter. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0018] Figs. 1-2 The utility model discloses an example.

[0019] Example:

[0020] The utility model provides a kind of composite filter core water purification device, including filter assembly, pressure tank 1, booster pump 2 and faucet, filter assembly is provided with filter core, filter assembly is provided with first water inlet pipe 3 and first water outlet pipe 4 respectively placed in the outside and inside of filter core, pressure tank 1 is provided with first pressure cavity 5 and second pressure cavity 6 independent of each other, first pressure cavity 5 is separated into first water cavity 8 and first gas cavity 9 by first rubber air bag 7, second pressure cavity 6 is separated into second water cavity 11 and second gas cavity 12 by second rubber air bag 10;First water outlet pipe 4 and first water cavity 8 are communicated, faucet is communicated by second water outlet pipe 13 and first water outlet pipe 4, second water outlet pipe 13 is communicated by third water outlet pipe 14 and second water cavity 11;The water outlet end of booster pump 2 and first water inlet pipe 3 are communicated;First water inlet pipe 3 is provided with first electromagnetic valve 15, second water outlet pipe 13 is provided with second electromagnetic valve 16 between third water outlet pipe 14 and first water outlet pipe 4, and third water outlet pipe 14 is provided with third electromagnetic valve 17;First water outlet pipe 4 is provided with fourth electromagnetic valve 18 between first water cavity 8 and second water outlet pipe 13;The outside of filter core is provided with first waste water pipe 19 communicated with the outside of filter assembly.In the user does not open faucet to make water, opens first electromagnetic valve 15, second electromagnetic valve 16, third electromagnetic valve 17 and fourth electromagnetic valve 18, and water is pumped into first water inlet pipe 3 by booster pump 2, then it is filtered by entering into filter assembly by first water inlet pipe 3, and the water after filtration is stored by first water outlet pipe 4, second water outlet pipe 13 and third water outlet pipe 14 simultaneously entering first water cavity 8 and second water cavity 11, and the volume of first water cavity 8 and second water cavity 11 is expanded by pressing first rubber air bag 7 and second rubber air bag 10.When making water is completed, third electromagnetic valve 17 and fourth electromagnetic valve 18 are closed.The user uses faucet, first water outlet pipe 4 and second water outlet pipe 13 are entered into faucet after water is pumped into filter assembly for filtering by booster pump 2 directly, after a period of time of continuous water supply, backwashing mode is started, first electromagnetic valve 15 and second electromagnetic valve 16 are closed when backwashing, third electromagnetic valve 17 and fourth electromagnetic valve 18 are opened, the pressure generated by the contraction of second rubber air bag 10 is used to supply water in first water cavity 8 to faucet by third water outlet pipe 14 and second water outlet pipe 13, and the pressure generated by the contraction of first rubber air bag 7 is used to backwash filter core by first water outlet pipe 4 into filter assembly, after washing, booster pump 2 is started, first electromagnetic valve 15 and second electromagnetic valve 16 are opened, and third electromagnetic valve 17 and fourth electromagnetic valve 18 are closed.

[0021] The first air cavity 9 is divided into a first upper chamber 21 and a first lower chamber 22 by the third rubber air bag 20. The first electric telescopic rod 23 is vertically installed in the first lower chamber 22, the output end of the first electric telescopic rod 23 faces upward, and the first push plate 24 is installed at the end of the output end, and the first push plate 24 is attached to the lower side of the third rubber air bag 20. The second air cavity 12 is divided into a second upper chamber 26 and a second lower chamber 27 by the fourth rubber air bag 25. The second electric telescopic rod 28 is vertically installed in the second lower chamber 27, the output end of the second electric telescopic rod 28 faces upward, and the second push plate 29 is installed at the end of the output end, and the second push plate 29 is attached to the lower side of the fourth rubber air bag 25. By setting the third rubber air bag 20 and the first electric telescopic rod 23, when making water, the first upper chamber 21 can be pressed downward by shortening the first electric telescopic rod 23, so that the first water cavity 8 can fully press the first rubber air bag 7 downward to store as much water as possible. When backwashing, by lengthening the first electric telescopic rod 23, the third rubber air bag 20 can be moved upward, thereby moving the entire first upper chamber 21 upward to compress the space of the first water cavity 8, thereby discharging as much water as possible in the first water cavity 8 for backwashing. Similarly, the third rubber air bag 20 and the second electric telescopic rod 28 are also set to prolong the time of supplying water through the first water cavity 8.

[0022] The upper side of the first push plate 24 is set as a convex ellipsoidal surface. By setting the ellipsoidal surface, the first electric push plate can avoid scratching the third rubber air bag 20. Similarly, the upper side of the second push plate 29 is also set as an ellipsoidal surface, which can also avoid damaging the fourth rubber air bag 25.

[0023] The first upper chamber 21 and the second upper chamber 26 are both installed with a gas pressure sensor 30, and the surface of the pressure tank 1 is installed with two inflation nozzles 31 respectively connected with the first upper chamber 21 and the second upper chamber 26. By setting the gas pressure sensor 30, the air pressure in the first upper chamber 21 and the second upper chamber 26 can be detected, thereby avoiding air leakage to cause the first upper chamber 21 and the second upper chamber 26 to not cooperate well for water making and water supply. By setting the inflation nozzle 31, the first upper chamber 21 and the second upper chamber 26 can be inflated.

[0024] The filter assembly comprises a first filter barrel 32 and a second filter barrel 33, the filter element comprises a composite filter element 34 and a reverse osmosis membrane filter element 35, the composite filter element 34 is installed in the first filter barrel 32, the reverse osmosis membrane filter element 35 is installed in the second filter barrel 33, a first water outlet pipe 4 is connected with the inner side of the reverse osmosis membrane filter element 35, the outer side of the reverse osmosis membrane filter element 35 is connected with the inner side of the composite filter element 34 through a second water inlet pipe 36, and a first water inlet pipe 3 is connected with the outer side of the composite filter element 34; a first waste water pipe 19 is arranged on the surface of the first filter barrel 32 and connected with the outer side of the composite filter element 34, the surface of the second filter barrel 33 is provided with a second waste water pipe 37 connected with the outer side of the reverse osmosis membrane filter element 35, and a fifth electromagnetic valve 38 is arranged on the second waste water pipe 37. Through the above arrangement, when water is prepared, the booster pump 2 pumps water into the first filter barrel 32 through the first water inlet pipe 3, and the water is filtered for the first time by entering the composite filter element 34 from the outer side of the composite filter element 34 to the inner side of the composite filter element 34 in the first filter barrel 32. The water filtered for the first time enters the second filter barrel 33 through the second water inlet pipe 36, and is filtered for the second time by entering the reverse osmosis membrane filter element 35 from the outer side of the reverse osmosis membrane filter element 35 to the inner side of the reverse osmosis membrane filter element 35, and the water filtered for the second time can be used. When water is prepared, part of the waste water for flushing the surface of the composite filter element 34 is discharged through the first waste water pipe 19, and part of the waste water for flushing the surface of the reverse osmosis membrane filter element 35 is discharged through the second waste water pipe 37. When backwashing is performed, the fifth electromagnetic valve 38 is closed, so that the water located outside the reverse osmosis membrane filter element 35 in the second filter barrel 33 enters the first filter barrel 32 to backwash the composite filter element 34.

[0025] The composite filter element 34 is sequentially provided with a PP cotton layer, an activated carbon layer and an ultrafiltration membrane layer from the outer side to the inner side.

[0026] The second water outlet pipe 13 is provided with a flow meter 39 between the third water outlet pipe 14 and the water faucet. By arranging the flow meter 39, the water flow of the water faucet can be monitored. When the water flow is reduced to a preset value, for example, reduced by 30%, the backwashing function is started, and backwashing is started.

[0027] Although the present application has been described with reference to multiple illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles disclosed herein. More particularly, various modifications and improvements can be made to the compositions of matter and / or methods described herein within the scope and range of equivalents of the disclosed subject matter. In addition to modifications and improvements to compositions of matter and / or methods disclosed herein, other uses can be readily apparent to those of ordinary skill in the art.

Claims

1. A composite filter cartridge water purifying device comprising a filter assembly, a pressure tank (1), a booster pump (2) and a faucet, characterized in that, The filter assembly is provided with a filter element, and a first water inlet pipe (3) and a first water outlet pipe (4) are arranged outside and inside the filter element respectively; the pressure tank (1) is provided with a first pressure chamber (5) and a second pressure chamber (6) which are independent of each other; the first pressure chamber (5) is divided into a first water chamber (8) and a first air chamber (9) by a first rubber air bag (7); the second pressure chamber (6) is divided into a second water chamber (11) and a second air chamber (12) by a second rubber air bag (10); the first water outlet pipe (4) is connected with the first water chamber (8); the faucet is connected with the first water outlet pipe (4) through a second water outlet pipe (13); the second water outlet pipe (13) is connected with the second water chamber (11) through a third water outlet pipe (14); the outlet of the booster pump (2) is connected with the first water inlet pipe (3); the first water inlet pipe (3) is provided with a first electromagnetic valve (15); the second water outlet pipe (13) is provided with a second electromagnetic valve (16) between the third water outlet pipe (14) and the first water outlet pipe (4); the third water outlet pipe (14) is provided with a third electromagnetic valve (17); the first water outlet pipe (4) is provided with a fourth electromagnetic valve (18) between the first water chamber (8) and the second water outlet pipe (13); the outside of the filter element is provided with a first waste water pipe (19) which is connected with the outside of the filter assembly.

2. The composite filter core water purifying device according to claim 1, characterized in that: The first air chamber (9) is divided into a first upper chamber (21) and a first lower chamber (22) by a third rubber air bag (20); the first lower chamber (22) is vertically provided with a first electric telescopic rod (23); the output end of the first electric telescopic rod (23) faces upward, and a first push plate (24) is arranged at the end of the output end; the first push plate (24) is attached to the lower side of the third rubber air bag (20); the second air chamber (12) is divided into a second upper chamber (26) and a second lower chamber (27) by a fourth rubber air bag (25); the second lower chamber (27) is vertically provided with a second electric telescopic rod (28); the output end of the second electric telescopic rod (28) faces upward, and a second push plate (29) is arranged at the end of the output end; the second push plate (29) is attached to the lower side of the fourth rubber air bag (25).

3. The composite filter core water purifying device according to claim 2, characterized in that: The upper side of the first push plate (24) is provided as a convex ellipsoidal surface.

4. The composite filter core water purifying device according to claim 2, characterized in that: The first upper chamber (21) and the second upper chamber (26) are both provided with a gas pressure sensor (30); the surface of the pressure tank (1) is provided with two inflation nozzles (31) which are connected with the first upper chamber (21) and the second upper chamber (26) respectively.

5. The composite filter core water purifying device according to claim 1, characterized in that: The filter assembly comprises a first filter barrel (32) and a second filter barrel (33), the filter core comprises a composite filter core (34) and a reverse osmosis membrane filter core (35), the composite filter core (34) is installed in the first filter barrel (32), the reverse osmosis membrane filter core (35) is installed in the second filter barrel (33), the first water outlet pipe (4) is communicated with the inner side of the reverse osmosis membrane filter core (35), the outer side of the reverse osmosis membrane filter core (35) is communicated with the inner side of the composite filter core (34) through a second water inlet pipe (36), the first water inlet pipe (3) is communicated with the outer side of the composite filter core (34); the first waste water pipe (19) is arranged on the surface of the first filter barrel (32) and is communicated with the outer side of the composite filter core (34), the surface of the second filter barrel (33) is provided with a second waste water pipe (37) which is communicated with the outer side of the reverse osmosis membrane filter core (35), and the second waste water pipe (37) is provided with a fifth electromagnetic valve (38).

6. The composite filter cartridge water purifying device according to claim 5, characterized in that: The composite filter core (34) is sequentially provided with a PP cotton layer, an activated carbon layer and an ultrafiltration membrane layer from the outer side to the inner side.

7. The composite filter cartridge water purifying device according to claim 1, characterized in that: The second water outlet pipe (13) is provided with a flow meter (39) between the third water outlet pipe (14) and a faucet.

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