A water purifier with a dual water outlet

Abstract

The object of the present invention is to provide a water purifier with a dual water outlet for various problems existing in the existing water purifiers on the market. It has a technologically leading water flow path design and creatively proposes a whole-house water purification technical path with dual water outlets, that is, one is non-direct drinking fine-filtered water and the other is direct drinking water, both of which can be laid throughout the house. The water flow path of the entire water purifier has the characteristics of short path, large flow rate, small water resistance, simple and compact structure, etc.; at the same time, it does not require electricity and does not produce waste water during use, truly realizing an energy-saving and environmentally friendly water purifier; it has strong water purification ability, high filtration accuracy, good effect, convenient filter element replacement, easy cleaning, and long service life. As a preference, the water purifier of this technology combines the functions of a pre-filter and a scale inhibitor, and there is no need to externally connect a pre-filter and a scale inhibitor; as a preference, the water purifier of this technology especially adopts a technical path of expandable modular combination, and can combine a customized water purifier that can meet the personalized requirements of users for water flow rate at any time.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and particularly relates to a water purifier with a dual water outlet path. Background Art

[0002] With the progress of technology and the improvement of people's living standards, people have begun to have higher requirements for the health of the water used in daily life.

[0003] From the early barreled water commonly used in families to the direct drinking water purified by water purifiers later, the requirements for water quality are getting higher and higher.

[0004] Water purifiers have also evolved from the early multi-stage filtration water purifiers that can produce a certain proportion of wastewater to the technical path of water purifiers that do not produce wastewater. In particular, the single-stage filtration water purifiers using ceramic composite filters do not produce wastewater, and the purified water can be directly drunk.

[0005] Currently, the water purifiers sold on the market are of various types. However, there is a lack of a dual water outlet path water purifier that can provide both non-direct drinking fine-filtered water and direct drinking water to the whole house, and there is an even greater lack of a modular and expandable dual water outlet path water purifier at any time. In addition, the inner and outer filters of the existing ceramic composite filter are integral and cannot be separated. Since the service life of the ceramic core of the outer filter is several times that of the carbon rod filter of the inner filter, the service life of the ceramic composite filter is determined by the life of the carbon rod filter. Every time the ceramic composite filter is replaced, the outer ceramic part is also scrapped together, resulting in great waste. In addition, the existing water purifiers need to be externally connected to a pre-filter.

[0006] In view of the above existing problems, it is necessary to design a faucet with a water purification function and a dual water outlet path that has higher requirements for water quality improvement, is easy to install, has a low cost, and filters better water quality. Summary of the Invention

[0007] The purpose of the present invention is to provide a water purifier with a dual water outlet path for various problems existing in water purifiers on the existing market. The water purifier of the present invention can achieve the following benefits:

[0008] 1. The water purifier of the present technology creatively proposes a whole-house water purification technical path with a dual water outlet path, that is, one path is non-direct drinking fine-filtered water, and the other path is direct drinking water. The water flow path of the entire water purifier has the characteristics of short path, large flow rate, small water resistance, simple and compact structure, etc.

[0009] 2. A water purifier that does not use electricity and does not produce wastewater, truly realizing energy conservation and environmental protection.

[0010] 3. High filtration precision and good effect: The filtration precision of non-direct drinking fine-filtered water can reach between 0.1 and 0.01 microns, which is nearly a thousand times higher than that of a simple pre-filter. At the same time, it can effectively remove harmful substances such as water scale, sediment, red worms, rust, and microorganisms, geometrically improving the water quality of the whole-house tap water; the filtration precision of direct drinking water can reach below 0.01 microns, which not only removes harmful substances such as water scale, sediment, red worms, rust, and microorganisms, but also removes 99.9% of chloroform, 99.9% of Escherichia coli, and most heavy metals, residual chlorine, hydrogen sulfide, organic substances and other harmful substances, while retaining various beneficial minerals;

[0011] 4. The filter element is convenient to replace, easy to clean, and has a long service life. The inner and outer filter elements of the existing ceramic composite filter element cannot be independently separated as a whole. Since the service life of the ceramic outer filter element is several times higher than that of the carbon rod inner filter element, the service life of the existing ceramic composite filter element in the market is determined by the life of the carbon rod inner filter element. In order to improve the service life of the filter element, this technology creatively separates the ceramic outer filter element and the carbon rod inner filter element of the ceramic composite filter element, and the carbon rod inner filter element with a short service life and expired can be replaced at any time, reducing the replacement frequency of the ceramic outer filter element. In this way, the service life of the filter element of the whole water purifier is correspondingly improved, and the use cost of the water purifier is greatly reduced, which is both environmentally friendly and cost-saving, beneficial to the country and the people;

[0012] 5. The water purifier of this technology combines the functions of a pre-filter and a scale inhibitor, eliminating the need to externally connect a pre-filter and a scale inhibitor;

[0013] 6. The water purifier of this technology, especially the one using an expandable modular combination, can be combined at any time to form a customized water purifier that can meet the personalized requirements of users for water flow. A set of product components can be integrated into many water purifiers with different water purification capabilities, greatly saving product development costs.

[0014] To achieve the above object, the present invention adopts the following technical solutions: A water purifier with a dual water outlet path, including a water purifier body, characterized in that the water purifier body is a water purifier that can simultaneously purify two different grades of water quality, namely non-direct drinking water and direct drinking water, and has a dual water outlet path; the water purifier body is jointly composed of several water purification units, several raw water flow channels, non-direct drinking water flow channels, and direct drinking water flow channels that are respectively connected to the water purification units; each of the water purification units includes a container-shaped filtration chamber, and a locking and sealing cover, a secondary filter element, and a primary filter element that are sequentially arranged from top to bottom in the filtration chamber; a locking structure relationship is formed between the upper part of the locking and sealing cover and the open mouth of the filtration chamber, and a first sealing structure is arranged on the outer periphery of its lower part; a second sealing structure is arranged on the outer periphery of the open mouth at the top of the secondary filter element; a third sealing structure is arranged on the outer periphery of the open mouth at the top of the primary filter element; the first sealing structure, the second sealing structure, and the third sealing structure are all in sealing cooperation with the inner wall of the filtration chamber; a direct drinking water cavity is formed between the first sealing structure and the second sealing structure, and the whole secondary filter element extends into the primary filter element and its water outlet is communicated with the direct drinking water cavity; a non-direct drinking water cavity is formed between the second sealing structure and the third sealing structure; a raw water cavity is formed between the inner wall of the filtration chamber below the third sealing structure and the outer wall of the primary filter element; the direct drinking water cavity is communicated with the direct drinking water flow channel, the non-direct drinking water cavity is communicated with the non-direct drinking water flow channel, and the raw water cavity is communicated with the raw water flow channel. Usually, raw water, which can also be said to be tap water, flows in the raw water cavity, and direct drinking water flows in the direct drinking water cavity. However, according to the specific design requirements of the water path, tap water can also flow in the direct drinking water cavity, and the literal meanings of these names cannot be used to limit their specific applications.

[0015] In the above-mentioned water purifier with a dual water outlet path, it is characterized in that the water purifier body is formed by connecting a number of water purification modules of the same specification in series. Each water purification module is composed of a number of water purification units arranged in a single column and connected as a whole, and a number of raw water short flow channels, non-potable water short flow channels and potable water short flow channels that communicate with the water purification unit respectively. There is a raw water short flow channel, a non-potable water short flow channel and a potable water short flow channel that are tangentially connected to the adjacent cavities respectively between two adjacent raw water cavities, non-potable water cavities and potable water cavities; a number of the raw water short flow channels, non-potable water short flow channels and potable water short flow channels are each connected in series through a number of tubular short joints to form the raw water flow channel, non-potable water flow channel and potable water flow channel; the raw water inlet at one end of the raw water flow channel is connected to a water distributor, and correspondingly, the other port is blocked by an end pipe plug; the water outlets of the non-potable water flow channel are all connected to a non-potable water collector, and correspondingly, the other end is blocked by an end pipe plug; the water outlets of the potable water flow channel are all connected to a potable water collector, and correspondingly, the other end is blocked by an end pipe plug; the non-potable water collector and the potable water collector are arranged on one side of the water outlet of the water purifier body, and correspondingly, the water distributor is located on the water inlet side of the water purifier body. Usually, except for the accessories inside the filter cavity, the main structure of the water purification module is an integrally injection-molded part; and the water distributor, non-potable water collector and potable water collector have the same specifications and structures in this technical solution.

[0016] In the above-mentioned water purifier with a dual water outlet path, it is characterized in that the water purifier body is assembled by connecting a number of water purification modules of the same specification in series through a number of connecting rods; a connecting rod is arranged in each raw water flow channel, one end of the connecting rod is connected to a water distributor, and the other end is connected to an end pipe plug; a connecting rod is arranged in each non-potable water flow channel, one end of the connecting rod is connected to a non-potable water collector, and the other end is connected to an end pipe plug; a connecting rod is arranged in each potable water flow channel, one end of the connecting rod is connected to a potable water collector, and the other end is connected to an end pipe plug; the non-potable water collector and the potable water collector are arranged on one side of the water outlet of the water purifier body, and correspondingly, the water distributor is located on the water inlet side of the water purifier body; the diameter of the connecting rod is smaller than the diameter of the water flow channel where it is located. Usually, the connecting rod requires a separate installation hole to match it. In this technology, it is creatively considered to use each water flow channel as the installation hole for the connecting rod. On the one hand, it makes the structure of the water purification module simpler. More importantly: in this technology, the water purification module tends to use an integrally injection-molded part. Then, it is more convenient to connect the connecting rod with the accessories at both ends of the raw water flow channel, non-potable water flow channel and potable water flow channel. The accessories include water distributors, collectors, pipe plugs, etc.

[0017] In the above-mentioned water purifier with a dual water outlet, it is characterized in that the water purifier body is composed of a pre-filter module at its water inlet end and several subsequent water purification modules of the same specification connected in series. The main structures of the pre-filter module and the water purification module are the same, and both are composed of several water purification units arranged in a single row and connected as a whole, and several raw water short channels, non-direct drinking water short channels, and direct drinking water short channels that communicate with the water purification units respectively. There is a raw water short channel, a non-direct drinking water short channel, and a direct drinking water short channel that are tangentially connected to the adjacent cavities between two adjacent raw water cavities, non-direct drinking water cavities, and direct drinking water cavities. The only difference is that the secondary filters in the water purification module are all carbon rod filters sintered with activated carbon, and the primary filters are all ceramic filters sintered with diatomaceous earth; the secondary filters in the pre-filter module are all stainless steel mesh filters, and the primary filter is a stainless steel mesh filter filled with scale inhibitor; the adjacent raw water short channels are each connected in series by several tubular short joints to form the raw water flow channel, and both ends of the raw water flow channel are blocked by end pipe plugs; the outer ports of the non-direct drinking water short channel and the direct drinking water short channel in the pre-filter module are respectively connected to a water distributor or a water distributor and an end pipe plug, and the inner ports are blocked from each other with the non-direct drinking water short channel and the direct drinking water short channel in the water purification module through an intermediate pipe plug. The non-direct drinking water short channels and the direct drinking water short channels in the adjacent water purification modules are each connected in series by several tubular short joints to form the non-direct drinking water flow channel and the direct drinking water flow channel. The outlet of the non-direct drinking water flow channel is connected to a non-direct drinking water collector, and the outlet of the direct drinking water flow channel is connected to a direct drinking water collector; the non-direct drinking water collector and the direct drinking water collector are arranged on the water outlet side of the water purifier body. Correspondingly, the water distributor is located on the water inlet side of the water purifier body. Special note: Since the main structures of the pre-filter module and the water purification module are exactly the same, only the material compositions of the primary filter and the secondary filter inside the filter cavity are different. Therefore, for convenience, the three cavities divided by the three sealing structures in the pre-filter module still use the names of the direct drinking water cavity, the non-direct drinking water cavity, and the raw water cavity, which are the same as the names of the three cavities in the water purification module. However, in fact, the raw water is contained in the direct drinking water cavity inside the pre-filter module instead of the direct drinking water, because the raw water first enters from the uppermost direct drinking water cavity and then flows through the non-direct drinking water cavity and the raw water cavity in sequence. Therefore, it is necessary to supplement and explain here that one should not misinterpret the description of this technology because of the literal meaning of the three cavities.

[0018] In the above-mentioned water purifier with a dual water outlet path, it is characterized in that the water purifier body is assembled by connecting a pre-filter module at its water inlet end and several water purifier modules of the same specification in series through several connecting rods; a connecting rod is arranged in each of the original water flow paths, and both ends of the connecting rod are respectively connected and sealed by an end pipe plug; a connecting rod is arranged in each of the non-direct drinking water flow paths, the connecting rod penetrates through the intermediate pipe plug and is connected to a non-direct drinking water collector at one end of the water outlet, and the other end is connected to an end pipe plug for sealing; a connecting rod is arranged in each of the direct drinking water flow paths, the connecting rod penetrates through the intermediate pipe plug and is connected to a direct drinking water collector at one end of the water outlet, and the other end is connected to an end pipe plug for sealing; the non-direct drinking water collector and the direct drinking water collector are arranged on one side of the water outlet of the water purifier body, and correspondingly, the water distributor is arranged on one side of the water inlet of the water purifier body; the diameter of the connecting rod is smaller than the inner diameter of the water flow path where it is located. Usually, the connecting rod requires a separate installation hole to match it. In this technology, the water flow paths are creatively used as the installation holes for the connecting rod. On the one hand, the structure of the water purifier module is made simpler. More importantly, in this technology, the water purifier module is an integrally injection-molded part. Then, it is more convenient to connect the connecting rod with the fittings at both ends of the original water flow path, the non-direct drinking water flow path and the direct drinking water flow path. The fittings at both ends include the water distributor, the collector, the pipe plug, etc.

[0019] In the above-mentioned water purifier with a dual water outlet path, it is characterized in that the secondary filters are all carbon rod filters sintered with activated carbon, and the primary filters are all ceramic filters sintered with diatomite. Usually, the primary filter and the secondary filter are independent of each other. Although most of the main body of the secondary filter extends into the primary filter, enough gaps are reserved between them to enable the water filtered by the primary filter to flow smoothly into the non-direct drinking water cavity.

[0020] In the above-mentioned water purifier with a dual water outlet path, it is characterized in that the first sealing structure, the second sealing structure, and the third sealing structure are all O-ring sealing structures, and the outer diameters of their close contact parts decrease gradually or are equal level by level. Usually, the design of gradually decreasing outer diameters in sequence is more conducive to the smooth installation of each component into the filter cavity; a tubular protrusion is arranged at the lower part of the locking sealing cover, and several water passing holes are arranged on the side wall of the tubular protrusion. Usually, the length of the tubular protrusion is preferably just in contact with the upper end face of the secondary filter; usually, the tubular protrusion just covers the water outlet of the secondary filter. In order to enable the water coming out of the secondary filter to flow smoothly into the non-direct drinking water cavity, several water passing holes are opened around the side wall of the tubular protrusion.

[0021] In the above-mentioned water purifier with a dual water outlet, it is characterized in that the tubular short joint is integrally hollow, and O-ring seal structures are respectively arranged on the peripheries of both ends thereof; O-ring seal structures are respectively arranged on the peripheries of both ends of the end pipe plug. Usually, the tubular short joint is machined from seamless stainless steel pipe.

[0022] In the above-mentioned water purifier with a dual water outlet, it is characterized in that O-ring seal structures are respectively arranged on the peripheries of both ends of the middle pipe plug. Usually, when the middle pipe plug is penetrated by the connecting rod, the two are in a tight fit and do not leak water, or the two are of an integral structure.

[0023] In the above-mentioned water purifier with a dual water outlet, it is characterized in that a head cover is respectively arranged on one side of the water inlet end and one side of the water outlet end of the water purifier body, and the head cover can cover the water distributor or the non-direct drinking water collector and the direct drinking water collector, playing a role of protection and beautification.

[0024] In summary, the water purifier of the present invention has a water flow path design with distinct technical features and leading technology, and has many advantages such as strong water purification ability, high filtration accuracy, convenient maintenance and replacement of filters, no electricity consumption, no wastewater, modular and freely expandable, and customizable. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. The drawings are only provided for reference and explanation, and are not used to limit the present invention.

[0026] Figure 1 It is a summary drawing of the front view, top view, left view and right view of a water purifier body according to Embodiment 1 provided by the present invention;

[0027] Figure 2 It is provided by the present invention Figure 1 The sectional view and top view of a single water purifier module marked as B-B therein;

[0028] Figure 3 It is provided by the present invention Figure 2 The sectional view of C-C marked therein;

[0029] Figure 4 It is a schematic structural diagram of a locking seal cover, a secondary filter element and a primary filter element combined by the present invention;

[0030] Figure 5It is a schematic diagram of the main structure of a water purification module provided by the present invention after removing the internal locking seal cover, secondary filter element, and primary filter element;

[0031] Figure 6 is provided by the present invention Figure 1 The schematic diagram of the A-A cross-sectional structure marked in;

[0032] Figure 7 is a schematic diagram of the structure of a water distributor, a direct drinking water collector, or a non-direct drinking water collector provided by the present invention;

[0033] Figure 8 is a summary diagram of the front view, top view, left view, and right view of a water purifier body according to Embodiment 2 provided by the present invention;

[0034] Figure 9 is provided by the present invention Figure 8 The schematic diagram of the structure of the D-D cross-section marked in;

[0035] Figure 10 is provided by the present invention Figure 9 The corresponding exploded view;

[0036] Figure 11 is provided by the present invention Figure 8 The cross-sectional view of a pre-filter module marked E-E in and the top view of the pre-filter module;

[0037] Figure 12 is a schematic diagram of the combined structure of the locking seal cover, secondary filter element, and primary filter element inside a pre-filter module provided by the present invention;

[0038] Figure 13 is a schematic diagram of the structure of a water purifier body after installing end head covers at both ends.

[0039] In the figure, water purifier body 1, water purification unit 2, filtration chamber 2a, locking seal cover 2b, secondary filter element 2c, primary filter element 2d, first sealing structure 2e, second sealing structure 2f, third sealing structure 2g, direct drinking water cavity 2h, non-direct drinking water cavity 2i, raw water cavity 2j, tubular protrusion 2k, water passing hole 2m, raw water flow channel 3, raw water short flow channel 3a, water distributor 3b, raw water inlet 3c, non-direct drinking water flow channel 4, non-direct drinking water short flow channel 4a, non-direct drinking water collector 4b, direct drinking water flow channel 5, direct drinking water short flow channel 5a, direct drinking water collector 5b, water purification module 6, pre-filter module 6a, tubular short joint 7, end head plug 8, connecting rod 9, intermediate plug 10, end head cover 11. Detailed implementation manners

[0040] Embodiment 1:

[0041] AsFigure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 13 As shown in Figure 13 , a water purifier with a dual water outlet path includes a water purifier body 1, which is assembled by connecting four water purification modules 6 of the same specification in series through six stainless steel connecting rods 9.

[0042] As Figure 2 shown, each water purification module 6 is composed of three water purification units 2 arranged in a single column and connected as a whole, and two raw water short flow channels 3a, two non - direct drinking water short flow channels 4a, and two direct drinking water short flow channels 5a that communicate with the water purification unit 2 respectively. Each water purification unit 2 includes a container - shaped filtration cavity 2a, and a locking and sealing cover 2b, a secondary filter element 2c, and a primary filter element 2d arranged in sequence from top to bottom in the filtration cavity 2a; a locking structure relationship is formed between the upper part of the locking and sealing cover 2b and the open end of the filtration cavity 2a, and a first sealing structure 2e is arranged on the outer periphery of its lower part; a second sealing structure 2f is arranged on the outer periphery of the open end of the top of the secondary filter element 2c; a third sealing structure 2g is arranged on the outer periphery of the open end of the top of the primary filter element 2d; the first sealing structure 2e, the second sealing structure 2f, and the third sealing structure 2g are all in sealing fit with the inner wall of the filtration cavity 2a. In this embodiment, the first sealing structure 2e, the second sealing structure 2f, and the third sealing structure 2g are all O - ring sealing structures, and the outer diameters of their close - contact parts gradually decrease from top to bottom in sequence. Such a design is more conducive to the smooth installation of each component into the filtration cavity.

[0043] A direct drinking water cavity 2h is formed between the first sealing structure 2e and the second sealing structure 2f. The secondary filter element 2c extends entirely into the primary filter element 2d and ensures that there is enough clearance between the two for water flow to flow out, and its water outlet is communicated with the direct drinking water cavity 2h; there is a direct drinking water short flow channel 5a tangent to and communicating with each adjacent cavity between two adjacent direct drinking water cavities 2h. Four head - to - tail connected direct drinking water short flow channels 5a are connected in series by three tubular short joints 7 to form a direct drinking water flow channel 5; a connecting rod 9 is arranged in each direct drinking water flow channel 5. One end of the connecting rod 9 is connected to a direct drinking water collector 5b, and the other end is blocked by a head pipe plug 8. In this embodiment, there are two direct drinking water flow channels 5, and they are simultaneously connected to a direct drinking water collector 5b with two collecting branches.

[0044] A non - potable water cavity 2i is formed between the second sealing structure 2f and the third sealing structure 2g. There is a non - potable water short flow channel 4a between two adjacent non - potable water cavities 2i, which is tangentially connected to the adjacent cavities. Four non - potable water short flow channels 4a that are connected end to end are connected in series by three tubular short joints 7 to form a non - potable water flow channel 4. A connecting rod 9 is arranged in each non - potable water flow channel 4. One end of the connecting rod 9 is connected to a non - potable water water collector 4b, and the other end is connected to an end pipe plug 8. In this embodiment, there are two non - potable water flow channels 4, and they are simultaneously connected to a non - potable water water collector 4b with two water collecting branches.

[0045] A raw water cavity 2j is formed between the inner wall of the filter cavity 2a below the third sealing structure 2g and the outer wall of the primary filter element 2d. There is a raw water short flow channel 3a between two adjacent raw water cavities 2j, which is tangentially connected to the adjacent cavities. Four raw water short flow channels 3a that are connected end to end are connected in series by three tubular short joints 7 to form a raw water flow channel 3. A connecting rod 9 is arranged in each raw water flow channel 3. One end of the connecting rod 9 near the raw water inlet 3c is connected to a water distributor 3b, and the other end is connected to an end pipe plug 8. In this embodiment, there are two raw water flow channels 3, and they are simultaneously connected to a water distributor 3b with two water distribution branches.

[0046] In this embodiment, both the non - potable water water collector 4b and the potable water water collector 5b are arranged on the water outlet side of the water purifier body 1. Correspondingly, the water distributor 3b is on the water inlet side of the water purifier body 1. The diameter of the connecting rod 9 is much smaller than the diameter of the water flow channel where it is located.

[0047] In this embodiment, the secondary filter element 2c is a carbon rod filter element sintered with activated carbon, and the primary filter element 2d is a ceramic filter element sintered with diatomite.

[0048] In this embodiment, a tubular convex body 2k is arranged at the lower part of the locking sealing cover 2b, and a plurality of water - passing holes 2m are arranged on the side wall of the tubular convex body 2k.

[0049] In this embodiment, the tubular short joint 7 is hollow as a whole, and O - ring seal structures are respectively arranged on the peripheries of its two ends; O - ring seal structures are respectively arranged on the peripheries of the two ends of the end pipe plug 8.

[0050] In this embodiment, an end cover 11 is respectively arranged on one side of the water inlet end and one side of the water outlet end of the water purifier body 1. The end cover 11 can cover the water distributor 3b or the non - potable water water collector 4b and the potable water water collector 5b, playing a role in protection and beautification.

[0051] In summary, the water flow path of the water purifier in this embodiment is roughly as follows: First, raw water (tap water) enters the water distributor 3b. After being split by the water distributor 3b, the raw water enters the two raw water flow channels 3 respectively by relying on water pressure, and then enters each raw water cavity 2j in sequence. The raw water is first filtered by the primary filter element 2d and purified into non-direct-drinking fine-filtered water before entering the non-direct-drinking water cavity 2i. Then, the non-direct-drinking fine-filtered water can flow out through two paths. One is that the non-direct-drinking fine-filtered water directly flows into the non-direct-drinking water flow channel 4 and is then split from the non-direct-drinking water collector 4b. The other is that the non-direct-drinking fine-filtered water is further filtered by the secondary filter element 2c and then enters the direct-drinking water cavity 2h, and then is split from the direct-drinking water flow channel 5 and the direct-drinking water collector 5b. In this way, a dual-outlet water flow path that can simultaneously purify two different grades of water, namely non-direct-drinking fine-filtered water and direct-drinking water, is formed.

[0052] Embodiment 2:

[0053] As Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 shown, the water purifier body 1 of this embodiment is assembled by connecting in series a pre-filter water purification module 6a at its water inlet end and three water purification modules 6 of the same specification through six stainless steel connecting rods 9.

[0054] The pre-filter water purification module 6a and the water purification module 6 have exactly the same main structure, and both are composed of three water purification units 2 arranged in a single row and connected as a whole, and two raw water short flow channels 3a, two non-direct-drinking water short flow channels 4a, and two direct-drinking water short flow channels 5a that communicate with the water purification unit 2 respectively. Each water purification unit 2 includes a container-shaped filtering cavity 2a, and a locking and sealing cover 2b, a secondary filter element 2c, and a primary filter element 2d arranged in sequence from top to bottom in the filtering cavity 2a. A locking structure relationship is formed between the upper part of the locking and sealing cover 2b and the open mouth of the filtering cavity 2a, and a first sealing structure 2e is arranged on the outer periphery of its lower part. A second sealing structure 2f is arranged on the outer periphery of the open mouth at the top of the secondary filter element 2c. A third sealing structure 2g is arranged on the outer periphery of the open mouth at the top of the primary filter element 2d. The first sealing structure 2e, the second sealing structure 2f, and the third sealing structure 2g are all in sealing cooperation with the inner wall of the filtering cavity 2a. In this embodiment, the first sealing structure 2e, the second sealing structure 2f, and the third sealing structure 2g are all O-ring sealing structures, and the outer diameters of the close contact parts of the three decrease gradually from top to bottom in sequence. Such a design is more conducive to the smooth installation of each component into the filtering cavity 2a.

[0055] Between the inner wall of the filtration chamber 2a below the third sealing structure 2g and the outer wall of the primary filter element 2d, a raw water cavity 2j is formed. There is a raw water short flow channel 3a between two adjacent raw water cavities 2j, which is tangentially connected to the adjacent cavities. The adjacent raw water short flow channels 3a are respectively connected in series by a tubular short joint 7 to form a raw water flow channel 3. Both ends of the raw water flow channel 3 are blocked by end pipe plugs 8. The outer ports of the non-potable water short flow channel 4a and the potable water short flow channel 5a in the pre-filtering water purification module 6a are respectively connected to a water distributor 3b, and the inner ports are blocked from each other with the non-potable water short flow channel 4a and the potable water short flow channel 5a in the water purification module 6 through an intermediate pipe plug 10. A connecting rod 9 is arranged in each raw water flow channel 3, and both ends of the connecting rod 9 are respectively connected to an end pipe plug 8 for blocking.

[0056] Between the second sealing structure 2f and the third sealing structure 2g, a non-potable water cavity 2i is formed. There is a non-potable water short flow channel 4a between two adjacent non-potable water cavities 2i, which is tangentially connected to the adjacent cavities. The non-potable water short flow channels 4a in the adjacent water purification modules 6 are respectively connected in series by a tubular short joint 7 to form a non-potable water flow channel 4. The water outlet of the non-potable water flow channel 4 is connected to a non-potable water collector 4b. A connecting rod 9 is arranged in each non-potable water flow channel 4. After passing through the intermediate pipe plug 10, the connecting rod 9 is connected to a non-potable water collector 4b at the water outlet end, and the other end is connected to an end pipe plug 8 for blocking.

[0057] Between the first sealing structure 2e and the second sealing structure 2f, a potable water cavity 2h is formed. The secondary filter element 2c entirely extends into the primary filter element 2d, and its water outlet is communicated with the potable water cavity 2h. There is a potable water short flow channel 5a between two adjacent potable water cavities 2h, which is tangentially connected to the adjacent cavities. The potable water short flow channels 5a in the adjacent water purification modules 6 are respectively connected in series by a tubular short joint 7 to form a potable water flow channel 5. The water outlet of the potable water flow channel 5 is connected to a potable water collector 5b. A connecting rod 9 is arranged in each potable water flow channel 5. After passing through the intermediate pipe plug 10, the connecting rod 9 is connected to a potable water collector 5b at the water outlet end, and the other end is connected to an end pipe plug 8 for blocking.

[0058] In this embodiment, the non-potable water collector 4b and the potable water collector 5b are arranged on the water outlet side of the water purifier body 1. Correspondingly, the water distributor 3b is on the water inlet side of the water purifier body 1; the diameter of the connecting rod 9 is smaller than the diameter of the water flow channel where it is located.

[0059] In this embodiment, as Figure 2 and Figure 11As shown, the secondary filters 2c in the water purification module 6 are all carbon rod filters sintered with activated carbon, and the primary filters 2d are all ceramic filters sintered with diatomite; while the secondary filters 2c in the pre - water purification module 6a are all stainless steel mesh filters, and the primary filters 2d are stainless steel mesh filters filled with scale inhibitors.

[0060] In this embodiment, a tubular protrusion 2k is provided at the lower part of the locking and sealing cover 2b, and a plurality of water - passing holes 2m are provided on the side wall of the tubular protrusion 2k.

[0061] In this embodiment, the tubular short - joint 7 is hollow as a whole, and O - ring seal structures are respectively provided on the outer peripheries of its two ends; O - ring seal structures are respectively provided on the outer peripheries of the two ends of the end pipe plug 8; and O - ring seal structures are respectively provided on the outer peripheries of the two ends of the intermediate pipe plug 10.

[0062] In this embodiment, one end - cover 11 is respectively provided on one side of the water inlet end and one side of the water outlet end of the water purifier body 1. The end - cover 11 can cover the water distributor 3b or the non - direct - drinking water collector 4b and the direct - drinking water collector 5b, playing a role in protection and aesthetics.

[0063] In summary, the water flow path of the water purifier in this embodiment is roughly as follows: First, the raw water (tap water) enters the water distributor 3b. After being split by the water distributor 3b, the raw water first enters the direct - drinking water cavity 2h in the pre - water purification module 6a relying on water pressure. Then the water flow successively flows through the non - direct - drinking water cavity 2i and the raw water cavity 2j and then enters the two raw water channels 3, and then enters each raw water cavity 2j in the water purification module 6 in turn. The raw water is first filtered by the primary filter 2d and purified into non - direct - drinking fine - filtered water and then enters the non - direct - drinking water cavity 2i. Then, the non - direct - drinking fine - filtered water can go out through two paths. One is that the non - direct - drinking fine - filtered water directly flows into the non - direct - drinking water channel 4 and is then split from the non - direct - drinking water collector 4b. The other is that the non - direct - drinking fine - filtered water is further filtered by the secondary filter 2c and then enters the direct - drinking water cavity 2h, and then is split from the direct - drinking water channel 5 and the direct - drinking water collector 5b. In this way, a double - outlet water flow path that can simultaneously purify two different grades of water, namely non - direct - drinking fine - filtered water and direct - drinking water, is formed.

[0064] Special Note: Since the main structures of the pre-filter water purification module 6a and the water purification module 6 are exactly the same, and only the material compositions of the primary filter element 2d and the secondary filter element 2c inside the filter chamber 2a are different, for convenience, the three cavities divided by the three sealing structures in the pre-filter water purification module 6a still use the names of the direct drinking water cavity 2h, the non-direct drinking water cavity 2i, and the raw water cavity 2j, which are the same as the names of the three cavities in the water purification module 6. However, in fact, the raw water is contained in the direct drinking water cavity 2h in the pre-filter water purification module 6a instead of the direct drinking water. Because the raw water first enters from the uppermost direct drinking water cavity 2h and then flows through the non-direct drinking water cavity 2i and the raw water cavity 2j in sequence, it is necessary to supplement and explain here that one should not misinterpret the description of this technology because of the literal meaning of the three cavities in the pre-filter water purification module 6a. The raw water short flow channel 3a, the non-direct drinking water short flow channel 4a, and the direct drinking water short flow channel 5a in the pre-filter water purification module 6a are just names. For example, one should not be restricted literally that the direct drinking water short flow channel 5a can only carry direct drinking water. On the contrary, in this embodiment, the raw water, that is, tap water, flows inside the direct drinking water short flow channel 5a in the pre-filter water purification module 6a.

[0065] The specific embodiments described in this article are only examples to illustrate the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them. For example, make a modification to the water purifier body in Embodiment 1: block both ends of the non-direct drinking water flow channel with end plugs, and such a water purifier will become a single-function direct drinking water purifier; if only block both ends of the direct drinking water flow channel with end plugs, then such a water purifier will become a single-function non-direct drinking fine-filtered water purifier; furthermore, for another example, the styles of the primary filter element and the secondary filter element can also be changed, etc., but it will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0066] Although terms such as water purifier body, water purification unit, filter chamber, locking and sealing cover, secondary filter element, primary filter element, first sealing structure, second sealing structure, third sealing structure, direct drinking water cavity, non-direct drinking water cavity, raw water cavity, tubular convex body, water passing hole, raw water flow channel, raw water short flow channel, water distributor, raw water inlet, non-direct drinking water flow channel, non-direct drinking water short flow channel, non-direct drinking water collector, direct drinking water flow channel, direct drinking water short flow channel, direct drinking water collector, water purification module, pre-filter water purification module, tubular short joint, end pipe plug, connecting rod, middle pipe plug, end cover, etc. are used more in this article, the possibility of using other terms is not excluded. Using these terms is only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A water purifier with a dual water outlet, comprising a water purifier body (1), characterized in that, The described water purifier body (1) is a water purifier that can simultaneously purify two different grades of water quality, namely non - direct drinking water and direct drinking water, and has a dual - water outlet path. The water purifier body (1) is composed of several water purification units (2), several raw water channels (3), non - direct drinking water channels (4), and direct drinking water channels (5) that are respectively connected to the water purification units (2). Each of the water purification units (2) includes a container - shaped filtration chamber (2a), and a locking and sealing cover (2b), a secondary filter element (2c), and a primary filter element (2d) that are sequentially arranged from top to bottom in the filtration chamber (2a). The upper part of the locking and sealing cover (2b) forms a locking structure relationship with the open end of the filtration chamber (2a), and a first sealing structure (2e) is provided on the outer periphery of its lower part. A second sealing structure (2f) is provided on the outer periphery of the open top of the secondary filter element (2c), and a third sealing structure (2g) is provided on the outer periphery of the open top of the primary filter element (2d). The first sealing structure (2e), the second sealing structure (2f), and the third sealing structure (2g) are all in sealing cooperation with the inner wall of the filtration chamber (2a). A direct drinking water cavity (2h) is formed between the first sealing structure (2e) and the second sealing structure (2f). The secondary filter element (2c) extends entirely into the primary filter element (2d), and its water outlet is communicated with the direct drinking water cavity (2h). A non - direct drinking water cavity (2i) is formed between the second sealing structure (2f) and the third sealing structure (2g). A raw water cavity (2j) is formed between the inner wall of the filtration chamber (2a) below the third sealing structure (2g) and the outer wall of the primary filter element (2d). The direct drinking water cavity (2h) is communicated with the direct drinking water channel (5), the non - direct drinking water cavity (2i) is communicated with the non - direct drinking water channel (4), and the raw water cavity (2j) is communicated with the raw water channel (3). The described water purifier body (1) is formed by connecting several water purification modules (6) of the same specification in series. Each water purification module (6) is composed of several water purification units (2) arranged in a single column and connected as a whole, and several raw water short flow channels (3a), non - drinking water short flow channels (4a), and drinking water short flow channels (5a) that communicate with the water purification unit (2) respectively. There is a raw water short flow channel (3a), a non - drinking water short flow channel (4a), and a drinking water short flow channel (5a) that are tangentially communicated with the adjacent cavities between two adjacent raw water cavities (2j), non - drinking water cavities (2i), and drinking water cavities (2h) respectively; several raw water short flow channels (3a), non - drinking water short flow channels (4a), and drinking water short flow channels (5a) that are connected end to end are each connected in series through several tubular short joints (7) to form the raw water flow channel (3), non - drinking water flow channel (4), and drinking water flow channel (5); the raw water inlet (3c) at one end of the raw water flow channel (3) is connected to a water distributor (3b). Correspondingly, the other port is blocked by an end pipe plug (8); the water outlets of the non - drinking water flow channel (4) are all connected to a non - drinking water collector (4b). Correspondingly, the other end is blocked by an end pipe plug (8); the water outlets of the drinking water flow channel (5) are all connected to a drinking water collector (5b). Correspondingly, the other end is blocked by an end pipe plug (8); the non - drinking water collector (4b) and the drinking water collector (5b) are arranged on the water outlet side of the water purifier body (1). Correspondingly, the water distributor (3b) is located on the water inlet side of the water purifier body (1). The described secondary filters (2c) are all carbon rod filters sintered with activated carbon, and the described primary filters (2d) are all ceramic filters sintered with diatomaceous earth.

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