Water quality purification assembly with anti-reflux function and intelligent toilet cover plate

Abstract

The utility model discloses an intelligent pedestal pan cover plate with a water quality purification component with a backflow prevention function. The water quality purification component comprises a base, a water inlet part and a water outlet part, wherein the base comprises a containing cavity, and the water inlet part and the water outlet part are communicated with the containing cavity; the purification module comprises a purification chamber, and a first water passing path and a second water passing path which are communicated with the purification chamber; the first water passing path is communicated with the water inlet part, and the second water passing path is communicated with the water outlet part; the anti-reflux structure comprises a sealing pressure-bearing piece and a one-way water outlet piece, and the sealing pressure-bearing piece is movably arranged at the connecting position of the first water passing path and the purification chamber and is communicated with the outside; the one-way water outlet piece is arranged on the water outlet part and used for limiting water flow from reversely flowing into the second water passing path. The connecting position of the second water passing path and the water outlet part is lower than the connecting position of the first water passing path and the purification chamber; according to the intelligent toilet cover plate with the water quality purification assembly, the problems that an existing filtering assembly is large in size, cannot be miniaturized, is arranged close to a water outlet unit, is poor in sanitation and is prone to being polluted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary ware production, in particular to an intelligent toilet seat cover with a water purification component and an anti-backflow function. Background Art

[0002] Nowadays, people are not only pursuing the diversification of functions of smart toilets, but also paying more attention to health needs, such as the water quality for washing the buttocks. With regional differences, the water quality of the water sources in the users' locations is also different. The marketing department reported that the water quality in some areas has high impurity content, resulting in more crystals (i.e. scale) in the flushing waterway, which is easy to block the cleaning waterway, and ultimately affect the normal use of smart flushing. For example, the water quality in some areas has a high content of organic or inorganic compounds, and long-term use has a certain impact on human health.

[0003] However, the existing method is to filter the water quality by adding a filter to the water inlet pipe. After the water flows through the filter on the water inlet pipe, it is filtered by osmosis under the action of water pressure. Although this method can achieve a certain amount of water impurity filtration, it also has many shortcomings: (1) If the water inlet pipe is directly connected to the hip wash or the women's wash, the water flow at the water outlet is easily contaminated. After the water is stopped after use, water will accumulate and flow back, resulting in water pollution, and may pollute or affect the water inlet. The water flow at the water inlet is directly connected to the municipal pipeline and is connected to other water-using ends. (1) The existing filter is large in size. After being installed on the smart cover, the thickness of the entire cover becomes higher and it is not easy to replace. It is generally placed on the side of the smart cover. This also means that the filtered water still needs to pass through a long waterway before it can be discharged. This makes it difficult to achieve a purification effect. The water is contaminated again in the long waterway, and the filtration and purification effect is poor. More importantly, a booster device is required to increase the pressure, otherwise the water flow cannot pass through and be filtered. (3) It is inconvenient to disassemble and replace the filter material, and it is easy to leak after failure, and the water outlet function cannot be used normally.

[0004] In summary, the existing water filter devices need to be further improved and upgraded to meet actual usage requirements. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned defects or problems existing in the background technology, and to provide a water purification component intelligent toilet cover with anti-backflow function, which has a simple structure, is easy to make, easy to implement and low cost, and solves the problems that the existing filter components are large in size, cannot be miniaturized, are installed close to the water outlet unit, have poor hygiene and are easy to be contaminated.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A water purification component with anti-backflow function, the water purification component comprising: a base, a purification module and an anti-backflow structure;

[0008] A base, comprising a receiving cavity, a water inlet portion and a water outlet portion connected to the receiving cavity;

[0009] A purification module is detachably mounted in the accommodating chamber; the purification module comprises a purification chamber and a first water passage and a second water passage communicating with the purification chamber; the first water passage is communicated with the water inlet, and the second water passage is communicated with the water outlet;

[0010] The anti-backflow structure includes a sealing pressure-bearing component and a one-way water outlet component, wherein the sealing pressure-bearing component is movably installed at the connection position between the first water passage and the purification chamber and is communicated with the outside; the one-way water outlet component is arranged at the water outlet portion and is used to limit the reverse flow of water into the second water passage; the connection position between the second water passage and the water outlet portion is lower than the connection position between the first water passage and the purification chamber; wherein, in the water-stop state, the sealing pressure-bearing component is pushed up by the external pressure to block the first water passage and make the purification chamber communicate with the outside.

[0011] Furthermore, it also includes a movable water sealing group, which is installed on the water inlet part; the movable water sealing group includes a sealing movable block and an elastic member; one end of the sealing movable block extends into the accommodating cavity and cooperates with the top of the purification module, and the other end is supported by the elastic member; wherein, when the purification module is separated from the accommodating cavity, the sealing movable block is blocked by the force of the elastic member.

[0012] Furthermore, a third water passage is formed between the water inlet and the water outlet, and the water inlet of the third water passage is arranged opposite to the first water passage; the sealing movable block is located between the third water passage and the first water passage; wherein the purification module is installed in the accommodating cavity and presses against the sealing movable block to block the third water passage.

[0013] Furthermore, the purification module includes a shell and a top cover; the shell and the top cover cooperate to form the purification chamber, and the top cover is provided with a vent hole for connecting the purification chamber with the outside; wherein the sealing pressure-bearing member is subjected to the water flow pressure change of the first water passage to open and close the vent hole.

[0014] Furthermore, the purification chamber is equipped with particles for removing chlorine, activated carbon and / or a filter membrane.

[0015] Furthermore, the top cover is sealingly assembled with the shell and the base respectively; an elastic buckle part and a limiting protrusion are formed on the outer peripheral wall of the top cover, and the elastic buckle part and the limiting protrusion are staggered along the circumferential direction and the axial direction; a clamping part cooperating with the elastic buckle part is formed on the outer peripheral wall of the shell; a stepped limiting groove is formed on the inner cavity wall of the accommodating cavity of the base, which cooperates with the limiting protrusion to limit the shell from separating from the base.

[0016] Furthermore, a rotating handle is provided on the top of the top cover, which is used to drive the top cover to rotate and axially displace relative to the base.

[0017] Furthermore, a sealing member is provided between the top cover and the accommodating cavity.

[0018] Furthermore, the one-way water outlet component is installed at the water outlet portion and reciprocates along the water outlet direction; when the one-way water outlet component is subjected to the pressure of the reverse water flow, the second water passage is blocked.

[0019] A smart toilet cover comprises a cover body, a water inlet and a plurality of water outlet units built in the cover body; it also comprises a water purification component installed in the cover body; the water inlet of the water purification component is connected to the water inlet, the water outlet is connected to each of the water outlet units respectively, and the purification chamber is connected to the outside of the cover body.

[0020] From the above description of the utility model, it can be seen that compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model provides a smart toilet seat cover with a water purification component and an anti-backflow function. The structure is simple, the manufacture is simple, the realization is easy and the cost is low. The problem that the existing filter component is large in size, cannot be miniaturized, is installed close to the water outlet unit, has poor hygiene and is easy to be contaminated is solved. The water purification component described in the utility model is independent and small-scale modularized. On the basis of having the function of purifying water, the overall height is reduced and it can also have at least two anti-backflow functions. The position change of the sealing pressure-bearing part (affected by water pressure and air pressure) is used to release the pressure in the storage chamber (i.e., the purification chamber) where the water purification material is stored and communicate with the outside. In this way, there is no negative pressure in the purification chamber, breaking the siphon phenomenon generated in the purification chamber, thereby preventing water from flowing out. The backflow of water in the purification chamber forms the first level of backflow prevention, that is, preventing the purified water in the purification chamber from flowing back to the first water path; not only that, a one-way water outlet is also arranged at the water outlet, which is linked with the sealing pressure-bearing member and is affected by the direction of the water flow. When the water flows backward, the sealing pressure-bearing member connects the purification chamber to the outside (that is, there is no pressure inside), so the water flows backward and blocks the second water outlet or the water outlet, thereby further preventing backflow by closing the second water outlet. The utility model can simultaneously meet the water inlet function, water purification function and at least two backflow prevention functions while being extremely small in size. Its structural design is exquisite and its related interactivity is good, filling the gap that smart toilets can only achieve water quality filtration through large filter groups, and it can be set for use near the water outlet unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic diagram of the three-dimensional exploded structure of the water purification component of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the water purification component of the utility model;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the purification module of the utility model;

[0026] Figure 4 This is a cross-sectional view of the water purification component of the utility model in the water inlet state;

[0027] Figure 5 This is a cross-sectional view of the water purification component of the utility model in a state where water intake stops;

[0028] Figure 6 It is a cross-sectional view of the replacement purification module described in the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are preferred embodiments of the utility model and should not be regarded as excluding other embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. is to distinguish different objects rather than to describe a specific order.

[0031] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the specific protection scope of the utility model.

[0032] In the claims, specification and the above drawings of the utility model, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0033] In the claims, specification and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0034] The water purification component with anti-backflow function described in this embodiment is configured on the cover plate of the smart toilet, and of course it can also be used on other water outlet components; the existing toilet cover plate includes a cover plate body, a water inlet built into the cover plate body, and a plurality of water outlet units (such as hip wash, feminine wash, self-cleaning and other water outlet units). The water purification component in this embodiment is installed on the cover plate body, and can be close to each water outlet unit, and can be directly connected to each water outlet unit, that is, the water inlet part 12 of the water purification component is connected to the water inlet, and the water outlet part 13 is connected to each of the water outlet units, and the purification component is connected to the outside of the cover plate body (the external connection here can be the internal chamber of the cover plate body (it can be connected to the atmosphere), or it can be directly opened on the cover plate body. A layer of waterproof and breathable membrane is attached to the channel (the waterproof and breathable membrane is an existing product and can be purchased directly) to achieve ventilation and ensure the aesthetics of the cover plate body;

[0035] like Figure 1-5 As shown, the water purification assembly of this embodiment includes: a base 1, a purification module 2, an anti-backflow structure 3, a movable water sealing group 4 and a third water passage 7;

[0036] The base 1 is formed by injection molding and has an opening opened upward, namely, a receiving chamber 11; and a water inlet 12 and a water outlet 13 connected to the receiving chamber 11; it should be noted that the base 1 in this embodiment is divided into a seat body 14, a water inlet member 15 and a water outlet member 16, the seat body 14 forms an upward opening (namely, the receiving chamber 11), and a through hole 17 for the movable water sealing group 4 to penetrate is opened at the bottom of the receiving chamber 11, and the position of the through hole 17 is connected to the water inlet member 15 to form a water inlet. The water inlet 15 forms a water inlet passage 151 connected to municipal water (or hot and cold mixed water); the water outlet 16 has two water inlet sections 161 and a water outlet 162, the water outlet 162 is connected to each water outlet unit (not shown in the figure), and one of the water sections 161 is connected to the water inlet 15 to form a third water passage 7, and the other water section 161 cooperates with the seat 14 to form a water outlet 13; wherein the one-way water outlet 32 ​​of the anti-backflow structure 3 is installed in the water section 161 and can move in the water section 161;

[0037] The purification module 2 is detachably mounted in the accommodating chamber 11; the purification module 2 comprises a purification chamber 21 and a first water passage 22 and a second water passage 23 communicating with the purification chamber 21; the first water passage 22 is communicated with the water inlet 12, and the second water passage 23 is communicated with the water outlet 13;

[0038] In this embodiment, the purification module 2 includes a shell 24 and a top cover 25, and the shell 24 and the top cover 25 cooperate to form a purification chamber 21. The shell 24 is arranged in a barrel shape, and the purification chamber 21 is designed in an annular shape. Particulate matter, activated carbon and / or a filter membrane for removing chlorine are installed inside. Of course, other materials for purifying water quality (such as PP cotton granular carbon, medical stone, etc.) can also be installed. They are loaded into the purification chamber 21. The center position of the shell 24 is separated to form a first water passage 22, and the top cover 25 is provided with a vent 251 for the purification chamber 21 to communicate with the outside; wherein, the sealing pressure-bearing member 31 opens and closes the vent under the water flow pressure of the first water passage 22 251; In the present embodiment, a movable space A is formed between the top cover 25 and the first water passage 22, on which a sealing pressure-bearing member 31 of the anti-backflow structure 3 is installed. The air vent 251 is opened and closed by the up and down movement of the sealing pressure-bearing member 31. This arrangement allows the negative pressure in the purification chamber 21 to be broken by the air vent 251 when the water is cut off, and a siphon structure cannot be formed, thereby preventing the water flow from being sucked back to the first water passage 22. In this way, the purification component described in the utility model can be installed near a butt wash, a women's wash spray or other water outlet 13 parts, which is safe and hygienic. This is something that cannot be achieved with existing filter components.

[0039] In addition, the top cover 25 is sealed and assembled with the shell 24 and the base 1 respectively; an elastic buckle portion 252 and a limiting protrusion 253 are formed on the outer peripheral wall of the top cover 25, and the elastic buckle portion 252 and the limiting protrusion 253 are staggered in the circumferential direction and the axial direction; a clamping portion 241 is formed on the outer peripheral wall of the shell 24 to cooperate with the elastic buckle portion 252, so that the top cover 25 and the shell 24 are sealed and assembled to form an independent purification module 2. When it is replaced later, only the entire purification module 2 needs to be replaced, and the material of the purification chamber 21 can be replaced; and the inner cavity wall of the accommodating cavity 11 of the base 1 forms a stepped limiting groove 17, which cooperates with the limiting protrusion 253 to limit the shell 24 from being separated from the base 1, so as to realize the rapid disassembly and assembly of the purification module 2 in the accommodating cavity 11 of the base 1.

[0040] In order to achieve quick and convenient disassembly and assembly and further improve the water sealing effect to avoid water leakage, a rotating handle 5 is provided on the top of the top cover 25, which is used to drive the top cover 25 to rotate and axially displace relative to the base 1, and a seal 6 is also installed between the top cover 25 and the accommodating chamber 11.

[0041] Anti-backflow structure 3. In this embodiment, anti-backflow designs are respectively provided at the water inlet, the purified water quality end and the water outlet. On the basis of small volume and quick replacement, a multi-channel anti-backflow design is formed to ensure the hygiene of the pipeline of the entire product;

[0042] In this embodiment, a movable water sealing group 4 is installed at the position of the water inlet 12, which plays two roles at the same time, one is to switch the water channel, and the other is to prevent backflow; the movable water sealing group 4 includes a sealing movable block 41 and an elastic member 42; one end of the sealing movable block 41 extends into the accommodating chamber 11, and is abutted against the purification module 2, and the other end is supported by the elastic member 42; wherein, the purification module 2 is separated from the accommodating chamber 11, and the sealing movable block 41 is blocked by the elastic member 42 to block the first water passage 22, so that when the purification module 2 is taken out and replaced, it can also prevent backflow, which plays a good protective role. This is a design for preventing backflow at the water inlet end; more importantly, when the purification module 2 is replaced, the normal use of the entire assembly can be guaranteed;

[0043] In addition, the anti-backflow structure 3 includes a sealing pressure-bearing member 31 and a one-way water outlet member 32; the sealing pressure-bearing member 31 is movably installed at the connection position between the first water passage 22 and the purification chamber 21, and is connected to the outside; the connection position between the second water passage 23 and the water outlet 13 is lower than the connection position between the first water passage 22 and the purification chamber 21; wherein, in the water-off state, the sealing pressure-bearing member 31 is pushed up by the external pressure to block the first water passage 22, and the purification chamber 21 is connected to the outside, and then the negative pressure in the purification chamber 21 is broken by the vent 251, and the siphon structure cannot be formed, and then the water flow will not be sucked back to the first water passage 22, which is an anti-backflow design at the water purification end;

[0044] At the water outlet end, the one-way water outlet component 32 is arranged at the water outlet portion 13, and is used to limit the reverse flow of water into the second water passage 23; in this embodiment, the one-way water outlet component 32 is installed at the water outlet portion 13 and reciprocates along the water outlet direction; the one-way water outlet component 32 blocks the second water passage 23 when it is subjected to the directional water flow pressure; such multiple anti-backflow designs ensure the overall hygiene and safe use of the entire component.

[0045] More specifically, a third water passage 7 is formed between the water inlet 12 and the water outlet 13 in this embodiment, and the water inlet of the third water passage 7 is arranged opposite to the first water passage 22; the sealing movable block 41 is located between the third water passage 7 and the first water passage 22; wherein, the purification module 2 is loaded into the accommodating cavity 11, and presses against the sealing movable block 41 to block the third water passage 7. Such an arrangement allows the purification module 2 to be replaced, removed for maintenance, etc. without cutting off the water, and there is no need to shut off the water, etc. The entire assembly can still work normally without affecting the use.

[0046] Actual assembly and use:

[0047] (1) A seat body 14, a water inlet member 15, and a water outlet member 16 are formed by injection molding. A sealing movable block 41 with a sealing gasket is first installed on the water inlet portion 12 of the lower surface of the seat body 14, and one end of the sealing movable block 41 is partially placed in the accommodating cavity 11 of the seat body 14, and the other end is sleeved with an elastic member 42; then, the water inlet member 15 with the third water passage 7 is sealed and installed on the water inlet portion 12. At this time, the sealing movable block 41 blocks the entrance of the accommodating cavity 11 under the action of the elastic member 42, and the third water passage 7 is open, that is, the water inlet 151 and the third water passage 7 are in a conductive state at this time;

[0048] (2) Similarly, the water outlet member 16 is mounted corresponding to the water outlet portion 13 of the seat body 14, and the water outlet end of the water outlet member 16 is connected to the second water passage 23 and the third water passage 7 respectively;

[0049] It should be noted that a chamber is formed between the seat body 14 and the water outlet member 16, and the one-way water outlet member 32 is installed therein before the seat body 14 and the water outlet member 16 are sealed and assembled, so that the one-way water outlet member 32 moves back and forth in the water outlet direction under the action of water pressure in the chamber;

[0050] (3) The water purification material is loaded into the shell 24 forming the first water passage 22 and the purification chamber 21, and then the sealing pressure bearing member 31 with a sealing gasket is installed at the position of the first water passage 22, and then the top cover 25 with a vent hole 251 is covered on the shell 24, and the limiting protrusions 253 and the elastic buckle parts 252 correspondingly arranged on the shell 24 and the top cover 25 cooperate to form an independent purification module 2, and finally the rotating handle 5 is installed on the top of the top cover 25;

[0051] (4) After the sealing ring is sleeved on the outer periphery of the top cover 25, the entire purification module 2 is correspondingly loaded into the accommodating chamber 11, and the limiting protrusion 253 is correspondingly inserted into the stepped limiting groove 17 and then rotated circumferentially by a certain angle to limit the purification module 2 to be placed in the accommodating chamber 11. It should be noted that when the purification module 2 is loaded into the accommodating chamber 11, its bottom presses against the sealing movable block 41 to move downward and compress the elastic member 42, so that the sealing movable block 41 blocks the connection between the water inlet 151 and the third water passage 7.

[0052] When using:

[0053] (1) Figure 4 As shown, after the water flows into the water inlet portion 12 from the water inlet passage 151, it directly enters the first water passage 22, and the sealing pressure-bearing member 31 is pushed upward by the force of the water flow, and the force of the water flow is greater than the atmospheric pressure, so that the sealing pressure-bearing member 31 blocks the vent 251 opened on the top cover 25; the water flows turn to flow into the purification chamber 21, and flows out of the purification chamber 21 after reacting with the water purification material in the purification chamber 21, and flows to the water outlet portion 13 through the second water passage 23. At this time, the water flow pushes the one-way water outlet member 32 to move in the direction of the water outlet. Since the water outlet hole of the water outlet member 16 is large, the water flows around the outside of the one-way water outlet member 32 and flows into the water outlet member 16, and then directly flows out the purified water;

[0054] (2) After use, Figure 5 As shown, the water inlet is closed, the sealing pressure-bearing member 31 no longer has water pressure, and the air pressure of the vent hole 251 pushes it to move downward and blocks the first water passage 22. At the same time, the vent hole 251 is connected to the purification chamber 21, so that the negative pressure formed inside the purification chamber 21 is released due to ventilation, and thus a siphon effect cannot be formed, and the water will not flow in the opposite direction. Moreover, the first water passage 22 is blocked, and the water in the purification chamber 21 will not enter the first water outlet, and thus will not enter the water inlet 12; at the same time, there is no pressure on the side of the one-way water outlet member 32 close to the second water passage 23. If backflow occurs, the water flow pushes the side of the one-way water outlet member 32 close to the water outlet and pushes it to the second water passage 23. At this time, the second water passage 23 is blocked at the center of the one-way water outlet member 32, thereby forming an anti-backflow function at the water outlet end;

[0055] (3) Figure 6As shown, when the purification module 2 needs to be replaced, there is no need to stop the water supply, and normal use will not be affected; the lock of the purification module 2 in the accommodating chamber 11 is directly released. At this time, the purification module 2 is no longer pressed against the sealing movable block 41. Under the action of the elastic member 42, the sealing movable block 41 blocks the hole connected to the accommodating chamber 11, so that the water flow is turned to the third water passage 7 and flows out from the water outlet. In this process, the water flowing to the second water passage 23 is also blocked by the one-way water outlet member 32 and cannot flow into the accommodating chamber 11. While achieving rapid replacement, it does not affect normal use and achieves replacement without stopping the machine or water.

[0056] The utility model provides a smart toilet seat cover with a water purification component and an anti-backflow function. The structure is simple, the manufacture is simple, the realization is easy and the cost is low. The problem that the existing filter component is large in size, cannot be miniaturized, is installed close to the water outlet unit, has poor hygiene and is easy to be contaminated is solved. The water purification component described in the utility model is independent and small-scale modularized. On the basis of having the function of purifying water, the overall height is reduced and it can also have at least two anti-backflow functions. The position change of the sealing pressure-bearing part (affected by water pressure and air pressure) is used to release the pressure in the storage chamber (i.e., the purification chamber) where the water purification material is stored and communicate with the outside. In this way, there is no negative pressure in the purification chamber, breaking the siphon phenomenon generated in the purification chamber, thereby preventing water from flowing out. The backflow of water in the purification chamber forms the first level of backflow prevention, that is, preventing the purified water in the purification chamber from flowing back to the first water path; not only that, a one-way water outlet is also arranged at the water outlet, which is linked with the sealing pressure-bearing member and is affected by the direction of the water flow. When the water flows backward, the sealing pressure-bearing member connects the purification chamber to the outside (that is, there is no pressure inside), so the water flows backward and blocks the second water outlet or the water outlet, thereby further preventing backflow by closing the second water outlet. The utility model can simultaneously meet the water inlet function, water purification function and at least two backflow prevention functions while being extremely small in size. Its structural design is exquisite and its related interactivity is good, filling the gap that smart toilets can only achieve water quality filtration through large filter groups, and it can be set for use near the water outlet unit.

[0057] The above specification and description of the embodiments are used to explain the protection scope of the utility model, but do not constitute a limitation on the protection scope of the utility model.

Claims

1. A water purification component with anti-backflow function, characterized in that: The water purification component includes: a base, a purification module and an anti-backflow structure; A base, comprising a receiving cavity, a water inlet portion and a water outlet portion connected to the receiving cavity; A purification module is detachably mounted in the accommodating chamber; the purification module comprises a purification chamber and a first water passage and a second water passage communicating with the purification chamber; the first water passage is communicated with the water inlet, and the second water passage is communicated with the water outlet; The anti-backflow structure includes a sealing pressure-bearing component and a one-way water outlet component, wherein the sealing pressure-bearing component is movably installed at the connection position between the first water passage and the purification chamber and is communicated with the outside; the one-way water outlet component is arranged at the water outlet portion and is used to limit the reverse flow of water into the second water passage; the connection position between the second water passage and the water outlet portion is lower than the connection position between the first water passage and the purification chamber; wherein, in the water-stop state, the sealing pressure-bearing component is pushed up by the external pressure to block the first water passage and make the purification chamber communicate with the outside.

2. A water purification component with anti-backflow function as claimed in claim 1, characterized in that: It also includes a movable water sealing group, which is installed with the water inlet part; the movable water sealing group includes a sealing movable block and an elastic member; one end of the sealing movable block extends into the accommodating cavity and is abutted against the purification module, and the other end is supported by the elastic member; wherein, when the purification module is separated from the accommodating cavity, the sealing movable block is blocked by the elastic member.

3. A water purification component with anti-backflow function as claimed in claim 2, characterized in that: A third water passage is also formed between the water inlet and the water outlet, and the water inlet of the third water passage is arranged opposite to the first water passage; the sealing movable block is located between the third water passage and the first water passage; wherein the purification module is installed in the accommodating cavity and presses against the sealing movable block to block the third water passage.

4. A water purification component with anti-backflow function as claimed in claim 2, characterized in that: The purification module includes a shell and a top cover; the shell and the top cover cooperate to form the purification chamber, and the top cover is provided with an air vent for connecting the purification chamber with the outside; wherein the sealing pressure-bearing member is subjected to the water flow pressure change of the first water passage to open and close the air vent.

5. A water purification component with anti-backflow function as claimed in claim 4, characterized in that: The purification chamber is provided with particles for removing chlorine, activated carbon and / or a filter membrane.

6. A water purification component with anti-backflow function as claimed in claim 4 or 5, characterized in that: The top cover is sealingly assembled with the shell and the base respectively; an elastic buckle part and a limiting protrusion are formed on the outer peripheral wall of the top cover, and the elastic buckle part and the limiting protrusion are staggered along the circumferential direction and the axial direction; a clamping part cooperating with the elastic buckle part is formed on the outer peripheral wall of the shell; a stepped limiting groove is formed on the inner cavity wall of the accommodating cavity of the base, which cooperates with the limiting protrusion to limit the shell from separating from the base.

7. A water purification component with anti-backflow function as claimed in claim 6, characterized in that: The top of the top cover is also provided with a rotating handle, which is used to drive the top cover to rotate and axially displace relative to the base.

8. A water purification component with anti-backflow function as claimed in claim 7, characterized in that: A sealing member is also arranged between the top cover and the accommodating cavity.

9. The water purification component with anti-backflow function as claimed in claim 1, characterized in that: The one-way water outlet component is installed at the water outlet portion and reciprocates along the water outlet direction; when the one-way water outlet component is subjected to the pressure of the reverse water flow, it blocks the second water passage.

10. An intelligent toilet cover, comprising a cover body, a water inlet channel built into the cover body, and a plurality of water outlet units; characterized in that: It also includes a water purification component as described in any one of claims 1 to 9, which is installed on the cover body; the water inlet part of the water purification component is connected to the water inlet path, the water outlet part is connected to each of the water outlet units respectively, and the purification chamber is connected to the outside of the cover body.

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