Household faucet filtering device
Technical Field
The invention relates to the technical field of water filtration, in particular to a household faucet filtration device.
Background
With the continuous improvement of life quality, people attach more importance to the problem of filtering household tap water.
In order to filter tap water, a simple water purifier is usually added, however, in a filtering device directly connected with tap water, impurities such as rust and gravel exist in tap water, so that the service life of a filter element in the purifier is generally short.
In order to solve the problem, a water tap filter capable of back flushing is developed in the market, such as a Chinese patent utility model with the bulletin number of CN204729708U and the name of a back flushing water tap, the scheme of the patent comprises a main body, a filtering device arranged on the main body and a water outlet head arranged at a water outlet of the filtering device, wherein a purified water channel and a tap water channel are arranged in the water outlet head, a back flushing switch matched with the purified water channel and the tap water channel is arranged on the water outlet head, and when the back flushing switch is opened, the purified water channel and the tap water channel are in a shut-off state, and the purified water channel and the tap water channel are communicated, so that the utility model has the advantages of simple structure and convenient use, and long service life and better purification effect by only opening the back flushing switch when the filtering device is required to be flushed;
however, the filtering precision of the faucet water purifier is generally only capable of achieving the rough filtering effect and cannot achieve the fine filtering, and if the technical scheme of multiple filtering is adopted, the automatic cleaning of the filtering core cannot be achieved due to the structural design, and the service life is further shortened.
Therefore, it is necessary to provide a household faucet filter device which can realize fine filtration and effectively prolong the service life.
Disclosure of Invention
Aiming at the problems, the invention provides a household faucet filtering device, which adopts the following technical scheme:
The household faucet filtering device comprises a filtering pipe fitting, a reversing valve, a back flushing pipe, a filtering mechanism and a cleaning mechanism, wherein the filtering pipe fitting comprises an outer pipe, an inner pipe, a double-layer filtering pipe and a first check valve, the inner pipe is fixedly arranged in the outer pipe, the double-layer filtering pipe is arranged between the inner pipe and the outer pipe and is fixedly arranged in the outer pipe, the outer pipe is communicated with one channel of the reversing valve through a water inlet pipe and is also communicated with the other channel of the reversing valve through the back flushing pipe, and the outer pipe is provided with a water outlet pipe;
the filter mechanism comprises a spiral plate and a filter plate, wherein the spiral plate is fixedly arranged between the inner pipe and the double-layer filter pipe and spirally arranged around the inner pipe;
The cleaning mechanism comprises a cleaning pipe, a spray head, an adjusting pipe, a water pump and a second check valve, wherein the adjusting pipe is coaxially and slidably arranged in the inner pipe, a plurality of first through holes are formed in the inner pipe, a plurality of second through holes corresponding to the first through holes are formed in the adjusting pipe, the second through holes are intermittently communicated with the corresponding first through holes, the cleaning pipe is hermetically and slidably arranged in the adjusting pipe, a water inlet of the cleaning pipe is slidably arranged in the outer pipe and communicated with a backwashing pipe, a plurality of mounting holes are formed in the inner layer of the double-layer filter pipe, each mounting hole is provided with the second check valve, a cavity between the double-layer filter pipe and the inner pipe is intermittently communicated with an interlayer cavity of the double-layer filter pipe, the water pump is communicated with the interlayer cavity of the double-layer filter pipe and is communicated with the outside, and the spray head communicated with the cleaning pipe is arranged on the cleaning pipe.
The cleaning mechanism further comprises a plurality of electromagnet groups I arranged between the cleaning pipe and the outer pipe, and two electromagnet groups I of the same group are respectively and fixedly arranged on the cleaning pipe and the outer pipe and used for controlling the cleaning pipe to slide.
Further, a flange plate I which is arranged in the outer tube in a sliding mode is coaxially and fixedly arranged on the end side of the cleaning tube, and an electromagnet I positioned on the cleaning tube is fixedly arranged on the flange plate I.
The cleaning mechanism further comprises a plurality of electromagnet groups II arranged between the adjusting pipe and the outer pipe, and two electromagnets of the same group are fixedly arranged on the adjusting pipe and the outer pipe respectively and used for controlling the sliding of the adjusting pipe.
Further, a flange plate II which is arranged in the outer tube in a sliding mode is coaxially and fixedly arranged on the end side of the adjusting tube, and an electromagnet II positioned on the adjusting tube is fixedly arranged on the flange plate II.
Further, the water inlet of the cleaning pipe is in a horn shape, and a sealing ring clung to the inner wall of the outer pipe is arranged on the outermost side of the water inlet.
The one-way valve comprises a spherical valve core and a valve body, wherein the valve body is fixedly arranged on the inner pipe and is communicated with the outside, vent holes communicated with the inner pipe are formed in the side wall and the innermost end of the valve body, and the spherical valve core is movably arranged in the valve body.
The one-way valve comprises a first valve plate, a second valve plate and a valve ring, wherein the first valve plate is provided with a plurality of torsion springs, the valve plates are all rotatably arranged on the valve ring, all the valve plates can be spliced into a horn shape with wide inner part and narrow outer part, each valve plate is elastically connected with the valve ring through the torsion springs, and the valve ring is fixedly arranged on the corresponding mounting hole.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. according to the invention, through the matching design of the filtering pipe fitting, the reversing valve, the back flushing pipe, the filtering mechanism and the cleaning mechanism, not only can the fine filtering effect be achieved by filtering tap water for multiple times, but also the automatic cleaning work can be carried out on the filtering plate and the double-layer filtering pipe, and the service life is effectively prolonged.
2. The cleaning mechanism of the invention not only can extract the cleaning water in the inner layer of the double-layer filter pipe, but also can extract the residual cleaning water in the inner pipe, thereby avoiding the residual cleaning water from affecting the subsequent filtering work.
Drawings
Fig. 1-2 are schematic views of the overall structure of the present invention.
FIG. 3 is a schematic cross-sectional view of the present invention at A-A.
Fig. 4 is an enlarged schematic view of the structure of fig. 3B according to the present invention.
Fig. 5 is an enlarged schematic view of the structure of fig. 3C according to the present invention.
Fig. 6 is an enlarged schematic view of the structure of fig. 3D according to the present invention.
FIG. 7 is a schematic cross-sectional view of the present invention at E-E.
Fig. 8 is a schematic view showing the internal structure of the filter tube member of the present invention.
Fig. 9 is a schematic structural view of the outer tube of the present invention.
FIG. 10 is a schematic cross-sectional view of a double-layered filter tube, filter mechanism and cleaning mechanism of the present invention at F-F.
FIG. 11 is a schematic view of the bottom surface structure of the double-layered filter tube, filter mechanism and cleaning mechanism of the present invention.
FIG. 12 is a schematic cross-sectional view of a double-layer filter tube and filter mechanism of the present invention at G-G.
FIG. 13 is a schematic view of the assembled structure of the double-layered filter tube and filter mechanism of the present invention.
Fig. 14-15 are schematic structural views of the filtering mechanism of the present invention.
FIG. 16 is a schematic view of the structure of a spiral plate in the filter mechanism of the present invention.
FIG. 17 is a schematic view of a double layer filter tube in a filter tube of the present invention.
FIG. 18 is a schematic sectional view of a double-layer filter tube of the present invention at H-H.
Fig. 19 to 21 are schematic views of a part of the structure of the cleaning mechanism of the present invention.
Fig. 22-23 are schematic structural views of a second check valve in the cleaning mechanism of the present invention.
Reference numerals:
1-a filter pipe fitting, 101-an outer pipe (1011-a water inlet pipe and 1012-a water outlet pipe), 102-an inner pipe (1021-a first through hole), 103-a double-layer filter pipe (1031-a mounting hole), and 104-a one-way valve (1041-a spherical valve core and 1042-a valve body);
2-reversing valve;
3-back flushing pipe;
4-filter mechanism, 401-spiral plate, 402-filter plate;
5-cleaning mechanism, 501-cleaning pipe (5011-water inlet; 5012-sealing ring), 502-electromagnet group I, 503-nozzle, 504-adjusting pipe (5041-second through port), 505-electromagnet group II, 506-water pump, 507-one-way valve II (5071-torsion spring; 5072-valve plate; 5073-valve ring).
Detailed Description
The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be embodied in many other forms than described herein, and persons skilled in the art will be able to make similar modifications without departing from the spirit of the invention, so that the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "in", "out", "front", "rear", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience in describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention.
Examples:
The embodiment is used for filtering a household faucet, as shown in fig. 1-6, and the household faucet filtering device comprises a filtering pipe fitting 1, a reversing valve 2, a backwashing pipe 3, a filtering mechanism 4 and a cleaning mechanism 5, wherein the filtering pipe fitting 1 comprises an outer pipe 101, an inner pipe 102, double-layer filtering pipes 103 and a first check valve 104, the reversing valve 2 is a two-way valve, the outer pipe 101 is formed by connecting two outer branch pipes, a water inlet pipe 1011 is arranged on one of the outer branch pipes and is communicated with a first channel of the reversing valve 2 through the water inlet pipe 1011, a water outlet pipe 1012 is arranged on the other branch pipe and is communicated with the household faucet through the water outlet pipe 1012, filtered water flows out through the water outlet pipe 1012, the top ends of the two branch outer pipes are communicated with the backwashing pipe 3, the backwashing pipe 3 is communicated with a second channel of the reversing valve 2, an inner pipe 102 is fixedly arranged in each branch outer pipe, the double-layer filtering pipe 103 is fixedly arranged on the inner pipe 102, the outer layer of the double-layer filtering pipe 103 is fixedly arranged on the inner wall of the outer pipe 101, the bottom end of each inner pipe 102 is fixedly arranged on the bottom end of the inner pipe 102, the inner pipe 104 is used for intermittently communicating the inner pipe 102 with the outside, the first check valve 104 is used for communicating the inner pipe 1041 with the outer pipe, the inner pipe 1042 and the inner pipe is fixedly arranged in a valve body 1042 and is fixedly arranged in a valve body, and is fixedly arranged in a valve body and is fixedly arranged at the valve body, and is in a valve body is fixedly arranged in a valve body is in the valve body and is in a valve body is.
As shown in fig. 3-7 and fig. 10-16, each group of filter mechanisms 4 comprises a spiral plate 401 and filter plates 402, wherein the spiral plate 401 is fixedly arranged between the inner pipe 102 and the double-layer filter pipe 103 and spirally arranged around the inner pipe 102, spiral grooves are formed between adjacent threads of the spiral plate 401, four filter plates 402 are arranged between the inner pipe 102 and the double-layer filter pipe 103, the four filter plates 402 are uniformly and vertically arranged on the periphery of the inner pipe 102 along the circumference, and the filter plates 402 are radially arranged along the spiral plate 401 and fixedly connected with each layer of threads of the spiral plate 401.
As shown in fig. 3-10 and 17-23, each cleaning mechanism 5 comprises a cleaning pipe 501, a first electromagnet group 502, a spray head 503, a regulating pipe 504, a second electromagnet group 505, a water pump 506 and a second one-way valve 507, wherein the regulating pipe 504 is coaxially and slidably arranged in the inner pipe 102, a flange plate II which is slidably arranged in the top end of a corresponding outer pipe is coaxially and fixedly arranged at the top end of the regulating pipe 504, a plurality of second electromagnet groups 505 are arranged between the flange plate II and the top end of the outer pipe, two electromagnets of the same group are fixedly arranged on the flange plate II and the top end of the outer pipe respectively, the second electromagnet groups 505 comprise a second attraction electromagnet group and a second repulsion electromagnet group which are uniformly and alternately arranged, and the second attraction electromagnet group and the second repulsion electromagnet group work independently, so as to drive the regulating pipe 504 to move up and down, a plurality of first ports 1021 are arranged on the inner pipe 102, a plurality of first ports 5041 which correspond to the first ports 1021 are arranged on the regulating pipe 504, and the second ports 5041 are intermittently communicated with the corresponding first ports 1021;
The cleaning pipe 501 is coaxially and hermetically arranged in the adjusting pipe 504 in a sliding manner, a water inlet 5011 positioned at the top end of the cleaning pipe 501 is arranged at the top end of the corresponding sub-outer pipe in a sliding manner and is communicated with the backwashing pipe 3, the water inlet 5011 of the cleaning pipe 501 is in an upward horn shape, a sealing ring 5012 tightly attached to the inner wall of the outer pipe 101 is arranged on the outermost side of the water inlet 5011 of the cleaning pipe 501, a flange plate I which is arranged at the top end of the sub-outer pipe in a sliding manner is coaxially and fixedly arranged below the water inlet 5011 of the cleaning pipe 501, a plurality of electromagnet groups I502 are arranged between the flange plate I and the top end of the sub-outer pipe, two electromagnets I of the same group are respectively and fixedly arranged at the flange plate I and the top end of the sub-outer pipe, the electromagnet groups I502 comprise attractive electromagnet groups I and repulsive electromagnet groups I which are uniformly and alternately arranged in a penetrating manner, so that the cleaning pipe 501 is driven to reciprocate, a plurality of spray heads 503 communicated with the cleaning pipe 501 are arranged on the cleaning pipe 501, and the spray heads 503 are communicated with the corresponding through holes 1021 on the inner pipe 102;
The inner layer of the double-layer filter tube 103 is provided with a plurality of mounting holes 1031, each mounting hole 1031 is provided with a second one-way valve 507, the second one-way valves 507 intermittently enable a cavity between the double-layer filter tube 103 and the inner tube 102 to be communicated with a sandwich cavity of the double-layer filter tube 103, each second one-way valve 507 comprises a torsion spring 5071, valve plates 5072 and valve rings 5073, ten valve plates 5072 are arranged and are rotatably mounted on the valve rings 5073, the valve plates 5072 are fan-shaped, all the valve plates 5072 can be spliced into a horn shape with wide inner part and narrow outer part, each valve plate 5072 is elastically connected with the valve rings 5073 through the torsion springs 5071, and the valve rings 5073 are fixedly mounted on the corresponding mounting holes 1031;
the water pump 506 is fixedly installed on the outer tube 101, and the water pump 506 is communicated with the interlayer cavity of the corresponding double-layer filter tube 103 and is communicated with the outside.
The working principle of the embodiment is as follows:
the water inlet of the reversing valve 2 is communicated with a household water pipeline, and the water outlet pipe 1012 of the outer pipe 101 is communicated with a household water faucet;
In general, the second attraction electromagnet group is electrified, the second repulsion electromagnet group is powered off, the second opening 5041 on the regulating pipe 504 is not communicated with the first opening 1021 on the inner pipe 102, the inner pipe 102 is not communicated with the inner layer of the double-layer filter pipe 103, the first passage of the reversing valve 2 is opened, the second passage is closed, water of the household water pipeline enters the water inlet pipe 1011 through the first passage of the reversing valve 2, then water enters the inner layer of the double-layer filter pipe 103 of one of the sub-outer pipes (at the moment, the second one-way valves 507 are all in a closed state), the water moves upwards spirally along the spiral plate 401 in the double-layer filter pipe 103 and passes through each filter plate 402 repeatedly, then the water enters the inner layer of the double-layer filter pipe 103 of the other sub-outer pipe, the water moves downwards spirally along the spiral plate 401 in the double-layer filter pipe 103 and passes through each filter plate 402 repeatedly, and finally the water flows from the water outlet pipe 1012 to the water tap.
When the double-layer filter tube 103 and the filter plate 402 need to be cleaned, the second attraction electromagnet group is powered off, the second repulsion electromagnet group is powered on, the adjusting tube 504 moves upwards, the second opening 5041 of the adjusting tube is correspondingly communicated with the first opening 1021 of the inner tube 102, so that the inner tube 102 is communicated with the inner layer of the double-layer filter tube 103, the first passage of the reversing valve 2 is closed, the second passage is opened, water in a household water pipeline enters the backwash tube 3 through the second passage of the reversing valve 2, then enters the top ends of the two outer branch tubes, respectively enters the corresponding cleaning tubes 501 along the respective water inlets 5011, and then water is sprayed out from the spray heads 503, and sprayed high-pressure water flows clean the double-layer filter tube 103 and the filter plate 402;
After cleaning, the first channel and the second channel of the reversing valve 2 are closed, the water pump 506 is started, under the action of air pressure, the valve plate 5072 of the second one-way valve 507 is opened, the cavity between the double-layer filter pipe 103 and the inner pipe 102 is communicated with the interlayer cavity of the double-layer filter pipe 103, water in the cavity between the double-layer filter pipe 103 and the inner pipe 102 enters the interlayer cavity of the double-layer filter pipe 103 through the second one-way valve 507 and flows to the outside through the water pump 506, meanwhile, the spherical valve core 1041 in the first one-way valve 104 moves upwards under the action of air pressure, outside air enters the inner pipe 102 from the vent hole on the side wall of the valve body 1042, and residual water in the inner pipe 102 enters the cavity between the double-layer filter pipe 103 and the inner pipe 102 through the first 1021 and the second 5041 which are communicated under the action of air pressure and is pumped to the outside by the water pump 506;
as described above, after the water pump 506 pumps the water generated by the cleaning to the outside, the cleaning tube 501 returns to the original position, the second attraction electromagnet set is electrified again, the second repulsion electromagnet set is powered off again, the second port 5041 on the adjusting tube 504 is not communicated with the first port 1021 on the inner tube 102, the inner tube 102 is not communicated with the inner layer of the double-layer filter tube 103, the first channel of the reversing valve 2 is opened, the second channel is closed, and the filtering operation is started again.