CN216170332U - Filter equipment and applied this filter equipment's water purifier - Google Patents

Abstract

The utility model discloses a filtering device, which comprises a water path plate main body, wherein a first filter element flow channel module communicated with a first-stage filter element, a second filter element flow channel module communicated with a second-stage filter element, a third filter element flow channel module communicated with a third-stage filter element and a fourth filter element flow channel module communicated with a fourth-stage filter element are arranged on the water path plate main body, and the first filter element flow channel module, the second filter element flow channel module, the third filter element flow channel module and the fourth filter element flow channel module are sequentially communicated to form a filtering water path. The filtering device and the water purifier applying the same have compact structure, are convenient and quick to assemble, and can effectively avoid leakage.

Description

Filter equipment and applied this filter equipment's water purifier

Technical Field

The utility model relates to the technical field of filter elements, in particular to a filtering device and a water purifier applying the same.

Background

At present, reverse osmosis water purifier on the market, the configuration of its filter media all is the cotton filter core of PP basically, leading active carbon, reverse osmosis membrane, configuration such as rearmounted active carbon, consequently a reverse osmosis water purifier need dispose four filter cores at least, not only the filter core is bulky, need occupy more spaces, and a joint chair is joined in marriage to general filter core, reuse pipe connection between joint chair and the joint chair couples together, the pipeline connection structure between this kind of water purifier filter core is tedious, the installation procedure is complicated, pipeline connection department is the place that often takes place to leak again, there is great seepage risk.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects in the prior art and provides a filtering device which is compact in structure, convenient and quick to assemble, and capable of effectively reducing the number of external pipelines between filter elements and avoiding leakage and a water purifier applying the filtering device.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a filter equipment, include water route board main part and can dismantle connect in first order filter core, second grade filter core, third grade filter core and fourth level filter core in the water route board main part, be equipped with in the water route board main part with the first filter core runner module of first order filter core intercommunication, with the second filter core runner module of second grade filter core intercommunication, with the third filter core runner module of third grade filter core intercommunication and with the fourth filter core runner module of fourth grade filter core intercommunication, first filter core runner module, second filter core runner module, third filter core runner module and fourth filter core runner module communicate in proper order and constitute the filtration water route.

As a further improvement of the above technical solution:

the first filter element flow channel module comprises a water inlet for accessing municipal tap water, a first component and a first pipe fitting, wherein the first component and the first pipe fitting are detachably connected to the water channel plate main body;

the second filter element flow passage module comprises a second component and a second pipe fitting which are detachably connected to the water passage plate main body, the first pipe fitting is communicated with the second component to form a secondary pre-filtering water passage, the output end of the second component is communicated with the input end of the second-stage filter element, and the output end of the second-stage filter element is communicated with the second pipe fitting;

the third filter element flow channel module comprises a third pipe fitting, a fourth pipe fitting, a third element and a wastewater outlet, wherein the third element is detachably connected to the water channel plate main body, the wastewater outlet is used for discharging wastewater, the second pipe fitting is communicated with the third pipe fitting to form a three-stage pre-filtration water channel, the output end of the third pipe fitting is communicated with the input end of the third-stage filter element, the third-stage filter element is provided with a pure water output end and a wastewater output end, the pure water output end is communicated with the fourth pipe fitting, and the wastewater output end, the third element and the wastewater outlet are sequentially communicated to form a wastewater water channel;

the fourth filter element flow channel module comprises a fifth pipe, a first pure water outlet, a second pure water outlet, a fourth element and a fifth element, wherein the fourth element and the fifth element are detachably connected to the water channel plate main body; and the fifth pipe fitting, the fifth element and the second pure water outlet are communicated in sequence to form a pure water heating waterway.

The filter element comprises a first filter element flow passage module, a second filter element flow passage module, a third filter element flow passage module and a fourth filter element flow passage module, wherein the first filter element flow passage module, the second filter element flow passage module, the third filter element flow passage module and the fourth filter element flow passage module are respectively provided with an element input part and an element output part, the input ends of a first component, a second component, a third component, a fourth component and a fifth component are respectively in plug-in connection with the element input part, and the output ends of the first component, the second component, the third component, the fourth component and the fifth component are respectively in plug-in connection with the element output part.

The filter element flow passage module comprises a first filter element flow passage module body, a second filter element flow passage module body, a third filter element flow passage module body and a fourth filter element flow passage module body, wherein the first filter element flow passage module body, the second filter element flow passage module body, the third filter element flow passage module body and the fourth filter element flow passage module body are respectively provided with a component mounting position in a forming mode, and a first component, a second component, a third component, a fourth component and a fifth component are respectively connected to the corresponding component mounting positions in a detachable mode through fasteners.

The first-stage filter element is a PP cotton filter element, the second-stage filter element is a front-mounted carbon filter element, the third-stage filter element is a reverse osmosis filter element, and the fourth-stage filter element is a rear-mounted carbon filter element; the first component is a pressure reducing valve, and the second component, the third component, the fourth component and the fifth component are all solenoid valves.

At least one positioning hole is formed in each of the first filter element flow channel module, the second filter element flow channel module, the third filter element flow channel module and the fourth filter element flow channel module, at least one positioning column is arranged on each of the first filter element, the second filter element, the third filter element and the fourth filter element, and the fastener penetrates through the positioning holes and is connected with the corresponding positioning columns to enable the filter elements to be fixedly connected to the corresponding filter element flow channel modules.

The first filter element flow channel module is provided with a low-voltage switch for detecting water pressure to cut off a circuit when the water pressure is too low and a first TDS detection accessory for detecting a TDS value in water flow; and a second TDS detection accessory used for detecting a TDS value in water flow is arranged on the third filter element flow channel module.

The first-stage filter element, the second-stage filter element, the third-stage filter element and the fourth-stage filter element are correspondingly communicated with the first filter element flow channel module, the second filter element flow channel module, the third filter element flow channel module and the fourth filter element flow channel module respectively through detachable connecting mechanisms;

the detachable connecting mechanism comprises water path plate plug pipes which are respectively arranged on the first filter element flow channel module, the second filter element flow channel module, the third filter element flow channel module and the fourth filter element flow channel module and communicated with the corresponding flow channel modules, and filter element plug pipes which are respectively arranged on the first-stage filter element, the second-stage filter element, the third-stage filter element and the fourth-stage filter element and communicated with the corresponding filter elements, wherein the filter element plug pipes are in plug connection with the corresponding water path plate plug pipes.

A water purifier comprises a shell, and a filtering device, a control device and a power supply which are arranged in the shell, wherein the filtering device is the filtering device, a first component, a second component, a third component, a fourth component and a fifth component are respectively and electrically connected with the control device, a heating device for heating pure water is also arranged in the shell, the input end of the heating device is communicated with a second pure water outlet, and the output end of the heating device is connected with a pure water heating outlet pipe; the output end of the first pure water outlet is connected with a normal-temperature pure water outlet pipe; the output end of the waste water outlet is connected with a waste water outlet pipe.

As a further improvement of the above technical solution:

install in the casing and be used for increasing hydraulic booster pump in the filter equipment, be connected with first joint with the mode of dismantling on the second filter core runner module, be connected with the second in the mode of dismantling on the third filter core runner module and connect, the input of booster pump with first joint intercommunication, the output of booster pump with the second connects the intercommunication.

Compared with the prior art, the utility model has the advantages that:

1. the first filter element runner module, the second filter element runner module, the third filter element runner module and the fourth filter element runner module on the water channel plate main body of the filtering device are integrally manufactured, the water channel plate main body is integrally of a plate-shaped structure, the first filter element runner module, the second filter element runner module, the third filter element runner module and the fourth filter element runner module are arranged on the water channel plate main body 1 in a square array mode, the whole structure is more compact, the space occupied by the arrangement of filter elements is reduced, the water channel communication among the filter elements is completed by matching the filter element runner modules formed on the water channel plate main body, the number of external pipelines among the filter elements is greatly reduced, and leakage can be effectively avoided.

2. The filter device and the heating device are arranged in the shell of the water purifier, part of pure water after four-stage filtration flows through the normal-temperature pure water outlet pipe from the first pure water outlet and is output, part of pure water flows into the heating device from the second pure water outlet and is heated, the pure water flows through the heating pure water outlet pipe after heating is finished and is output, and the filtered waste water flows through the waste water outlet pipe and is output.

Drawings

Fig. 1 is a schematic perspective view of a filter device.

Fig. 2 is a schematic top view of the waterway plate main body.

Fig. 3 is a schematic view of the waterway plate main body in an exploded state.

Fig. 4 is a schematic view of the first stage filter element and the second stage filter element on the water path plate main body in a disassembled state.

Fig. 5 is another angle view of fig. 4.

Fig. 6 is a schematic exploded view of a third stage filter element and a fourth stage filter element on the water path plate main body.

Fig. 7 is another angle view of fig. 6.

Fig. 8 is a schematic perspective view of the water purifier.

Fig. 9 is a schematic view showing an exploded state of the water purifier.

Fig. 10 is another angle view of fig. 9.

Fig. 11 is a partial structural schematic diagram of the water purifier.

Illustration of the drawings:

1. a waterway plate main body; 101. a first filter element flow passage module; 1011. a water inlet; 1012. a first pipe member; 102. a second filter element flow passage module; 1021. a second pipe member; 103. a third filter element flow passage module; 1031. a third pipe member; 1032. a fourth pipe member; 1033. a wastewater outlet; 104. a fourth filter element flow passage module; 1041. a fifth pipe fitting; 1042. a first pure water outlet; 1043. a second pure water outlet; 2. a first stage filter element; 3. a second stage filter element; 4. a third stage filter element; 401. a pure water output end; 402. a waste water output end; 5. a fourth stage filter element; 6. a first component; 7. a second component; 8. a third component; 9. a fourth element; 10. a fifth device; 11. a component input section; 12. a component output section; 13. a component mounting position; 14. positioning holes; 15. a positioning column; 16. a low voltage switch; 17. a first TDS detection accessory; 18. a second TDS detection accessory; 19. a detachable connection mechanism; 191. a waterway plate inserting pipe; 192. a filter element insertion pipe; 20. a first joint; 21. a second joint; 100. a housing; 200. a control device; 300. a power source; 400. a heating device; 500. a booster pump; 600. a heating pure water outlet pipe; 700. a normal temperature pure water outlet pipe; 800. and a waste water outlet pipe.

Detailed Description

The utility model is described in further detail below with reference to the figures and specific examples.

As shown in fig. 1 and fig. 2, the filtering apparatus of this embodiment includes a water channel plate main body 1 and a first filter element 2 detachably connected to the water channel plate main body 1, a second filter element 3, a third filter element 4 and a fourth filter element 5, a first filter element flow channel module 101 communicated with the first filter element 2 is disposed on the water channel plate main body 1, a second filter element flow channel module 102 communicated with the second filter element 3, a third filter element flow channel module 103 communicated with the third filter element 4 and a fourth filter element flow channel module 104 communicated with the fourth filter element 5, the first filter element flow channel module 101, the second filter element flow channel module 102, the third filter element flow channel module 103 and the fourth filter element flow channel module 104 are sequentially communicated to form a filtering water channel. This filter equipment's first filter core runner module 101 in water route board main part 1, second filter core runner module 102, third filter core runner module 103 and fourth filter core runner module 104 adopt integrated into one piece preparation, water route board main part 1 wholly is platelike structure, first filter core runner module 101, second filter core runner module 102, third filter core runner module 103 and fourth filter core runner module 104 are square array and arrange on water route board main part 1, overall structure is compacter, reduce the shared space of arranging of filter core, and water route intercommunication between the filter core is accomplished through the cooperation of the filter core runner module of shaping on water route board main part 1, make external pipeline quantity greatly reduced between the filter core, can effectively avoid taking place the seepage.

Preferably, the first filter element flow channel module 101 comprises a water inlet 1011 for accessing municipal tap water, a first component 6 detachably connected to the water channel plate main body 1, and a first pipe 1012, wherein the water inlet 1011 is communicated with the first component 6 to form a first-stage pre-filter water channel, the output end of the first component 6 is communicated with the input end of the first-stage filter element 2, and the output end of the first-stage filter element 2 is communicated with the first pipe 1012;

the second filter element flow channel module 102 comprises a second component 7 and a second pipe fitting 1021, which are detachably connected to the water circuit board main body 1, the first pipe fitting 1012 is communicated with the second component 7 to form a second-stage pre-filtering water channel, the output end of the second component 7 is communicated with the input end of the second-stage filter element 3, and the output end of the second-stage filter element 3 is communicated with the second pipe fitting 1021;

the third filter element flow channel module 103 comprises a third pipe 1031, a fourth pipe 1032, a third component 8 detachably connected to the water channel plate main body 1 and a wastewater outlet 1033 for discharging wastewater, the second pipe 1021 is communicated with the third pipe 1031 to form a three-stage pre-filtration water channel, the output end of the third pipe 1031 is communicated with the input end of the third stage filter element 4, the third stage filter element 4 is provided with a pure water output end 401 and a wastewater output end 402, the pure water output end 401 is communicated with the fourth pipe 1032, and the wastewater output end 402, the third component 8 and the wastewater outlet 1033 are sequentially communicated to form a wastewater water channel;

the fourth filter element flow channel module 104 comprises a fifth pipe 1041, a first pure water outlet 1042, a second pure water outlet 1043, a fourth element 9 and a fifth element 10 detachably connected to the water channel plate main body 1, the fourth element 1032 forms a pre-fourth-filter water channel, an output end of the fourth element 1032 is communicated with an input end of the fourth filter element 5, an output end of the fourth filter element 5 is communicated with the fifth pipe 1041, and the fifth pipe 1041, the fourth element 9 and the first pure water outlet 1042 are sequentially communicated to form a normal-temperature pure water channel; the fifth pipe 1041, the fifth element 10 and the second pure water outlet 1043 are sequentially communicated to form a pure water heating waterway.

In this embodiment, a water inlet 1011 and a first pipe 1012 on the first filter element flow channel module 101, a second pipe 1021 on the second filter element flow channel module 102, a third pipe 1031 on the third filter element flow channel module 103, a fourth pipe 1032 and a waste water outlet 1033, and a fifth pipe 1041 on the fourth filter element flow channel module 104, a first pure water outlet 1042 and a second pure water outlet 1043 are all integrally formed structures on the water circuit board main body 1, and can be manufactured by adopting a process of mold integral casting, and jointly form a part of pipeline through which a water channel flows between filter elements, so that the number of pipeline joints between filter elements is greatly reduced, and the water circuit board has the advantages of low processing cost and convenience in batch production.

Preferably, a component input part 11 and a component output part 12 are respectively formed on the first filter element flow channel module 101, the second filter element flow channel module 102, the third filter element flow channel module 103 and the fourth filter element flow channel module 104, the input ends of the first component 6, the second component 7, the third component 8, the fourth component 9 and the fifth component 10 are respectively in plug-in connection with the corresponding component input part 11, and the output ends of the first component 6, the second component 7, the third component 8, the fourth component 9 and the fifth component 10 are respectively in plug-in connection with the corresponding component output part 12. In this embodiment, the waterway plate main body 1 is integrally formed with the component input part 11 and the component output part 12 corresponding to the first component 6, the second component 7, the third component 8, the fourth component 9 and the fifth component 10, so that the installation and positioning of the components can be facilitated, and the waterway plate main body has the advantages of improving the assembly efficiency, being low in mold forming difficulty and low in processing cost.

Preferably, the first filter element flow channel module 101, the second filter element flow channel module 102, the third filter element flow channel module 103 and the fourth filter element flow channel module 104 are respectively formed with an element mounting position 13, and the first element 6, the second element 7, the third element 8, the fourth element 9 and the fifth element 10 are respectively detachably connected to the corresponding element mounting position 13 through a fastener. In this embodiment, integrated into one piece has the components and parts installation position 13 corresponding with first component 6, second component 7, third component 8, fourth component 9 and fifth component 10 on the water route board main part 1, through the screw with components and parts fixed connection on components and parts installation position 13, have simple structure, installation and dismantlement process convenient and fast, advantage with low costs.

Preferably, the first-stage filter element 2 is a PP cotton filter element, the second-stage filter element 3 is a front carbon filter element, the third-stage filter element 4 is a reverse osmosis filter element, and the fourth-stage filter element 5 is a rear carbon filter element; the first component 6 is a pressure reducing valve, and the second component 7, the third component 8, the fourth component 9 and the fifth component 10 are all solenoid valves. In this embodiment, the pressure reducing valve can reduce the water pressure at the inlet to a suitable outlet water pressure through regulation, so that the water pressure entering the inside of the filtering device is kept stable, and the electromagnetic valve is used for controlling the on-off of the corresponding water path.

Preferably, at least one positioning hole 14 is formed in each of the first filter element flow channel module 101, the second filter element flow channel module 102, the third filter element flow channel module 103 and the fourth filter element flow channel module 104, at least one positioning post 15 is formed in each of the first filter element 2, the second filter element 3, the third filter element 4 and the fourth filter element 5, and the fastening member passes through the positioning hole 14 and is connected with the corresponding positioning post 15 so as to fixedly connect each filter element to the corresponding filter element flow channel module. In this embodiment, first order filter core 2, second grade filter core 3, third level filter core 4 and fourth level filter core 5 are respectively through the reference column 15 on it with the water route board main part 1 on corresponding locating hole 14 cooperation, the screw passes locating hole 14 and is connected with reference column 15 and takes off each filter core fixed connection on water route board main part 1, can prevent effectively that the filter core from taking off from water route board main part 1 pine, have simple structure, connection stability is good, the advantage of easy assembly.

As shown in fig. 3, preferably, the first filter cartridge flow path module 101 is provided with a low pressure switch 16 for detecting water pressure to cut off the circuit when the water pressure is too low and a first TDS detection fitting 17 for detecting TDS value in the water flow; the third filter element flow channel module 103 is provided with a second TDS detection accessory 18 for detecting TDS values in the water flow. In this embodiment, the low voltage switch 16 and the first TDS detecting component 17 are both disposed on the first pipe 1012, wherein the low voltage switch 16 is used to detect the water pressure in the first pipe 1012, and when the water pressure value in the pipe is too low, the low voltage switch is turned off to protect the pipe, the first TDS detecting component 17 is used to detect the total amount of dissolved solids (TDS for short) in the water flow in the first pipe 1012, and if the TDS value of the water flow filtered by the first stage filter element 2 is detected to be not in accordance with the standard, the filter element is replaced; second TDS detects accessory 18 and sets up on fourth pipe fitting 1032, and the pure water that obtains after third filter element 4 filters enters into fourth pipe fitting 1032 from pure water output 401 in, and second TDS detects accessory 18 is used for detecting the TDS value of pure water in fourth pipe fitting 1032, if detect the pure water TDS value and do not accord with the standard then consider the renew cartridge.

As shown in fig. 4 to 7, preferably, the first-stage filter element 2, the second-stage filter element 3, the third-stage filter element 4 and the fourth-stage filter element 5 are correspondingly communicated with the first filter element flow channel module 101, the second filter element flow channel module 102, the third filter element flow channel module 103 and the fourth filter element flow channel module 104 through the detachable connection mechanism 19, so that the detachment and installation between the filter elements and the corresponding filter element flow channel modules can be completed quickly, and the operation is simple and convenient.

Preferably, the detachable connection mechanism 19 includes water channel board plug pipes 191 respectively disposed on the first filter element flow channel module 101, the second filter element flow channel module 102, the third filter element flow channel module 103 and the fourth filter element flow channel module 104 and communicated with the corresponding flow channel modules, and filter element plug pipes 192 respectively disposed on the first filter element 2, the second filter element 3, the third filter element 4 and the fourth filter element 5 and communicated with the corresponding filter elements, and each filter element plug pipe 192 is connected with the corresponding water channel board plug pipe 191 in a plugging manner. In this embodiment, can dismantle coupling mechanism 19 and adopt the water route board plug tube 191 that sets up on water route board main part 1 and the filter core plug tube 192 plug connection's that sets up on each filter core form, simple structure not only, the fashioned die sinking degree of difficulty of mould is low, and the cost of production and processing is low, and it is good to connect the leakproofness moreover, can effectively avoid rivers to take place the seepage in the junction, has easily assembly, advantage that connection stability is good. Specifically, a first waterway plate plug-in pipe communicated with the output end of the first component 6 and a second waterway plate plug-in pipe communicated with the first pipe 1012 are arranged on the first filter element flow channel module 101, a first filter element inlet plug-in pipe communicated with the input end of the first stage filter element 2 and a first filter element outlet plug-in pipe communicated with the output end of the first stage filter element 2 are arranged on the first stage filter element 2, wherein the first waterway plate plug-in pipe is in plug-in connection with the first filter element inlet plug-in pipe, and the second waterway plate plug-in pipe is in plug-in connection with the first filter element outlet plug-in pipe; a third water channel plate plug-in pipe communicated with the output end of the second binary device 7 and a fourth water channel plate plug-in pipe communicated with the second pipe 1021 are arranged on the second filter element flow channel module 102, a second filter element inlet plug-in pipe communicated with the input end of the second-stage filter element 3 and a second filter element outlet plug-in pipe communicated with the output end of the second-stage filter element 3 are arranged on the second-stage filter element 3, wherein the third water channel plate plug-in pipe is in plug-in connection with the second filter element inlet plug-in pipe, and the fourth water channel plate plug-in pipe is in plug-in connection with the second filter element outlet plug-in pipe; a fifth water channel plate plug-in pipe communicated with the third pipe 1031, a sixth water channel plate plug-in pipe communicated with the fourth pipe 1032, and a seventh water channel plate plug-in pipe communicated with the input end of the third component 8 are arranged on the third filter element flow channel module 103, a third filter element inlet plug-in pipe communicated with the input end of the third filter element 4, a third filter element outlet pure water plug-in pipe communicated with the pure water output end 401, and a third filter element outlet wastewater plug-in pipe communicated with the wastewater output end 402 are arranged on the third filter element 4, wherein the fifth water channel plate plug-in pipe is in plug-in connection with the third filter element inlet plug-in pipe, the sixth water channel plate plug-in pipe is in plug-in connection with the third filter element outlet pure water plug-in pipe, and the seventh water channel plate plug-in pipe is in plug-in connection with the third filter element outlet wastewater plug-in pipe; be equipped with the eighth water route board spliced pipe that communicates with fourth pipe fitting 1032 on the fourth filter core runner module 104, the ninth water route board spliced pipe that communicates with fifth pipe fitting 1041, be equipped with on the fourth level filter core 5 and advance the spliced pipe with the fourth filter core of fourth level filter core 5 input intercommunication, go out the spliced pipe with the fourth filter core of fourth level filter core 5 output intercommunication, wherein eighth water route board spliced pipe advances spliced pipe spliced connection with the fourth filter core, ninth water route board spliced pipe and fourth filter core play spliced pipe spliced connection.

As shown in fig. 8 to 11, the water purifier of the present embodiment includes a housing 100, and a filtering device, a control device 200 and a power supply 300 installed in the housing 100, where the filtering device is the above-mentioned filtering device, the first component 6, the second component 7, the third component 8, the fourth component 9 and the fifth component 10 are respectively electrically connected to the control device 200, a heating device 400 for heating pure water is further installed in the housing 100, an input end of the heating device 400 is communicated with a second pure water outlet 1043, and an output end of the heating device 400 is connected to a pure water heating outlet pipe 600; the output end of the first pure water outlet 1042 is connected with a normal-temperature pure water outlet pipe 700; the output end of the waste water outlet 1033 is connected with a waste water outlet pipe 800. The casing 100 of this water purifier is provided with filter equipment and heating device 400 in, the pure water after four-stage filtration partly flows through normal atmospheric temperature pure water outlet pipe 700 output from first pure water export 1042 and heats in flowing into heating device 400 from second pure water export 1043, the heating is accomplished the back and is flowed through heating pure water outlet pipe 600 output, and the waste water that produces after the filtration flows through waste water outlet pipe 800 output, water purifier complete machine compact structure, can reduce the space that occupies, the user realizes the output of normal atmospheric temperature pure water and heating pure water of water purifier through the break-make of controlling means 200 control components and parts among the filter equipment, user's convenience in use improves.

Preferably, a booster pump 500 for increasing the water pressure in the filtering apparatus is installed in the casing 100, the second filter element flow passage module 102 is detachably connected to the first connector 20, the third filter element flow passage module 103 is detachably connected to the second connector 21, an input end of the booster pump 500 is communicated with the first connector 20, and an output end of the booster pump 500 is communicated with the second connector 21. In this embodiment, the booster pump 500 is used to make the water pressure reach a specified value and input the water into the third stage filter element 4 (reverse osmosis filter element) to realize purified water output, the first joint 20 is connected with the input end of the booster pump 500 through a pipeline, the second joint 21 is connected with the output end of the booster pump 500 through a pipeline, and the high-pressure water output by the booster pump 500 enters the reverse osmosis filter element through the second joint 21 to implement sufficient water pressure effect. Specifically, the first joint 20 is disposed at an output end of the second pipe 1021, and the second joint 21 is disposed at an input end of the third pipe 1031.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. Modifications and variations that may occur to those skilled in the art without departing from the spirit and scope of the utility model are to be considered as within the scope of the utility model.

Claims (10)

1. A filtering device comprises a waterway plate main body (1) and a first-stage filter element (2), a second-stage filter element (3), a third-stage filter element (4) and a fourth-stage filter element (5) which are detachably connected with the waterway plate main body (1), it is characterized in that a first filter element flow passage module (101) communicated with the first-stage filter element (2), a second filter element flow passage module (102) communicated with the second-stage filter element (3), a third filter element flow passage module (103) communicated with the third-stage filter element (4) and a fourth filter element flow passage module (104) communicated with the fourth-stage filter element (5) are arranged on the water channel plate main body (1), the first filter element flow channel module (101), the second filter element flow channel module (102), the third filter element flow channel module (103) and the fourth filter element flow channel module (104) are sequentially communicated to form a filtering water path.

2. The filtering device according to claim 1, wherein the first filter element flow channel module (101) comprises a water inlet (1011) for accessing municipal tap water, a first component (6) detachably connected to the water channel plate body (1), and a first pipe (1012), wherein the water inlet (1011) is communicated with the first component (6) to form a pre-filter water channel, the output end of the first component (6) is communicated with the input end of the first filter element (2), and the output end of the first filter element (2) is communicated with the first pipe (1012);

the second filter element flow channel module (102) comprises a second component (7) and a second pipe fitting (1021) which are detachably connected to the waterway plate main body (1), the first pipe fitting (1012) is communicated with the second component (7) to form a secondary pre-filtering waterway, the output end of the second component (7) is communicated with the input end of the second-stage filter element (3), and the output end of the second-stage filter element (3) is communicated with the second pipe fitting (1021);

the third filter element flow channel module (103) comprises a third pipe fitting (1031), a fourth pipe fitting (1032), a third device (8) detachably connected to the water channel plate main body (1) and a wastewater outlet (1033) for discharging wastewater, the second pipe fitting (1021) is communicated with the third pipe fitting (1031) to form a three-stage pre-filtration water channel, the output end of the third pipe fitting (1031) is communicated with the input end of the third filter element (4), the third filter element (4) is provided with a pure water output end (401) and a wastewater output end (402), the pure water output end (401) is communicated with the fourth pipe fitting (1032), and the wastewater output end (402), the third device (8) and the wastewater outlet (1033) are sequentially communicated to form a wastewater water channel;

the fourth filter element flow channel module (104) comprises a fifth pipe (1041), a first pure water outlet (1042), a second pure water outlet (1043), a fourth element (9) and a fifth element (10) which are detachably connected to the water channel plate main body (1), the fourth pipe (1032) forms a four-stage pre-filtration water channel, the output end of the fourth pipe (1032) is communicated with the input end of the fourth filter element (5), the output end of the fourth filter element (5) is communicated with the fifth pipe (1041), and the fifth pipe (1041), the fourth element (9) and the first pure water outlet (1042) are sequentially communicated to form a normal-temperature pure water channel; and the fifth pipe fitting (1041), the fifth element (10) and the second pure water outlet (1043) are communicated in sequence to form a pure water heating waterway.

3. The filtering device according to claim 2, wherein a component input part (11) and a component output part (12) are respectively formed on the first filter element flow channel module (101), the second filter element flow channel module (102), the third filter element flow channel module (103) and the fourth filter element flow channel module (104), the input ends of the first component (6), the second component (7), the third component (8), the fourth component (9) and the fifth component (10) are respectively connected with the corresponding component input part (11) in an inserting manner, and the output ends of the first component (6), the second component (7), the third component (8), the fourth component (9) and the fifth component (10) are respectively connected with the corresponding component output part (12) in an inserting manner.

4. The filter device according to claim 2, wherein the first filter element flow channel module (101), the second filter element flow channel module (102), the third filter element flow channel module (103) and the fourth filter element flow channel module (104) are respectively formed with component mounting positions (13), and the first component (6), the second component (7), the third component (8), the fourth component (9) and the fifth component (10) are respectively detachably connected to the corresponding component mounting positions (13) through fasteners.

5. The filtration device according to claim 2, wherein the first stage filter element (2) is a PP cotton filter element, the second stage filter element (3) is a front carbon filter element, the third stage filter element (4) is a reverse osmosis filter element, and the fourth stage filter element (5) is a rear carbon filter element; the first component (6) is a pressure reducing valve, and the second component (7), the third component (8), the fourth component (9) and the fifth component (10) are all electromagnetic valves.

6. The filter device according to claim 1, wherein the first filter element flow passage module (101), the second filter element flow passage module (102), the third filter element flow passage module (103) and the fourth filter element flow passage module (104) are respectively provided with at least one positioning hole (14), the first stage filter element (2), the second stage filter element (3), the third stage filter element (4) and the fourth stage filter element (5) are respectively provided with at least one positioning post (15), and a fastening member passes through the positioning hole (14) and is connected with the corresponding positioning post (15) so as to fixedly connect each filter element to the corresponding filter element flow passage module.

7. The filtration apparatus of claim 1, wherein the first cartridge flow channel module (101) is provided with a low pressure switch (16) for detecting water pressure to shut off the circuit when the water pressure is too low and a first TDS detection fitting (17) for detecting TDS values in the water stream; and a second TDS detection accessory (18) for detecting a TDS value in water flow is arranged on the third filter element flow channel module (103).

8. The filtration device according to any one of claims 1 to 7, wherein the first stage filter element (2), the second stage filter element (3), the third stage filter element (4) and the fourth stage filter element (5) are respectively in corresponding communication with the first filter element flow channel module (101), the second filter element flow channel module (102), the third filter element flow channel module (103) and the fourth filter element flow channel module (104) through detachable connection means (19);

the detachable connecting mechanism (19) comprises water channel plate plug pipes (191) which are respectively arranged on the first filter element flow channel module (101), the second filter element flow channel module (102), the third filter element flow channel module (103) and the fourth filter element flow channel module (104) and communicated with the corresponding flow channel modules, and filter element plug pipes (192) which are respectively arranged on the first-stage filter element (2), the second-stage filter element (3), the third-stage filter element (4) and the fourth-stage filter element (5) and communicated with the corresponding filter elements, wherein the filter element plug pipes (192) are in plug connection with the corresponding water channel plate plug pipes (191).

9. A water purifier, comprising a housing (100), and a filtering device, a control device (200) and a power supply (300) which are installed in the housing (100), wherein the filtering device is the filtering device according to any one of claims 2 to 8, the first component (6), the second component (7), the third component (8), the fourth component (9) and the fifth component (10) are respectively electrically connected with the control device (200), a heating device (400) for heating pure water is further installed in the housing (100), the input end of the heating device (400) is communicated with the second pure water outlet (1043), and the output end of the heating device (400) is connected with a pure water heating outlet pipe (600); the output end of the first pure water outlet (1042) is connected with a normal-temperature pure water outlet pipe (700); the output end of the waste water outlet (1033) is connected with a waste water outlet pipe (800).

10. The water purifier as recited in claim 9, wherein a booster pump (500) for increasing a water pressure in said filtering apparatus is installed in said housing (100), a first joint (20) is detachably connected to said second filter element flow path module (102), a second joint (21) is detachably connected to said third filter element flow path module (103), an input end of said booster pump (500) is communicated with said first joint (20), and an output end of said booster pump (500) is communicated with said second joint (21).

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