Waterproof water inlet valve and water purifier

Abstract

The utility model relates to the technical field of water valves, and discloses a waterproof water inlet valve. The valve body is connected with the base and is connected in series with a water inlet path of the water purifier; the functional module is integrated with a coil assembly, an iron core assembly and a sealing assembly, and the functional module is connected to the base, communicates with the valve body and is used for connecting and disconnecting a water path in the valve body; an outer sealing cavity is formed in the base; and the functional module is arranged in the outer sealing cavity. According to the water inlet valve, secondary isolation of functional modules in the water inlet valve can be achieved, so that the waterproof performance of the water inlet valve is improved, and external water vapor is effectively prevented from invading and corroding metal pieces of the water inlet valve.

Description

Technical Field

[0001] The utility model relates to the technical field of water inlet valves, in particular to a waterproof water inlet valve and a water purifier. Background Art

[0002] With the improvement of modern people's living quality and the emphasis on health, the requirements for people's living standards are increasing day by day. As a device for purifying and filtering water sources through physical adsorption and filtration, water purifiers are gradually entering more and more families. Among them, the anti-leakage safety of household water purifiers is crucial. To prevent water leakage from the water purifier, a water inlet valve is usually provided at the water inlet end of the water purifier, and a linkage control is formed between the water inlet valve and the leakage protector at the bottom of the water purifier itself. When the leakage protector is triggered due to water leakage in the machine, the water path entering the water purifier can be cut off in time, thus preventing losses caused by water leakage to users.

[0003] To achieve the above-mentioned linkage control, the water inlet valve used in the water purifier is usually electric, that is, it includes an electric execution part and a valve part. When in use, the valve part is connected to the water path, and the electric execution part controls the opening and closing movement of the valve part through a motor. Currently, most water purifiers on the market are under-counter type. In the enclosed and humid under-counter environment, the metal parts (including the lead connection parts, etc.) inside the electric water inlet valve are at risk of being corroded and invaded by water vapor, resulting in short circuit and burnout. Therefore, enhancing the waterproof performance of the electric water inlet valve used in the water purifier is an urgent problem for those skilled in the art to solve. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a waterproof water inlet valve to solve the above technical problems.

[0005] To achieve the above purpose, the following technical solutions are provided:

[0006] In a first aspect, the utility model provides a waterproof water inlet valve, including: a base; a valve body connected to the base and used to connect in series the water inlet path of the water purifier; a functional module integrated with a coil assembly, an iron core assembly and a sealing assembly, the functional module is connected to the base and communicates with the valve body to open and close the water path inside the valve body; an outer sealing cavity is formed on the base; the functional module is arranged in the outer sealing cavity.

[0007] As a preferred solution of the waterproof water inlet valve provided by the utility model, an outer shell is detachably and sealingly connected to the base, and the outer shell and the base jointly form the outer sealing cavity.

[0008] As a preferred solution of the waterproof water inlet valve provided by the utility model, the outer shell is a cylindrical structure with an opening at one end, an installation surface is provided on the base, and the outer shell is connected to the installation surface through fasteners, so that the end surface of the outer shell with the opening is attached to and abuts against the installation surface.

[0009] As a preferred solution of the waterproof inlet valve provided by the present utility model, an annular seal is provided on the mounting surface, and the annular seal is used for sealing and plugging the opening of the outer housing.

[0010] As a preferred solution of the waterproof inlet valve provided by the present utility model, a groove is provided on the outer wall surface of the annular seal, and a sealing ring is embedded in the groove, and the sealing ring is used for elastically abutting against the inner wall of the opening of the outer housing.

[0011] As a preferred solution of the waterproof inlet valve provided by the present utility model, the inlet valve further includes a lead wire, a wire passing hole is provided in the outer sealing cavity, and the lead wire is hermetically passed through the wire passing hole and extends into the inner part of the outer sealing cavity for connecting the functional module.

[0012] As a preferred solution of the waterproof inlet valve provided by the present utility model, an elastic sealing sleeve is sleeved outside the lead wire, and a clamping groove for clamping the wire passing hole is formed by inward depression on the outer wall of the sealing ring.

[0013] As a preferred solution of the waterproof inlet valve provided by the present utility model, chamfers are provided at both ends of the elastic sealing sleeve.

[0014] As a preferred solution of the waterproof inlet valve provided by the present utility model, the wire passing hole is formed on the base.

[0015] In a second aspect, the present utility model further provides a water purifier, which is characterized in that it includes the waterproof inlet valve as described above.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. On the basis that the sealing component is integrated in the functional components of the inlet valve, an outer sealing cavity is additionally provided on the base to realize secondary isolation of the inlet valve, thereby improving the waterproof performance of the inlet valve;

[0018] 2. The outer sealing cavity is provided with a wire passing hole, so that the connection end of the lead wire can also be built in the outer sealing cavity, reducing the risk of moisture absorption at the connection between the functional module and the lead wire. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the description of the embodiments of the present utility model. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the content of the embodiments of the present utility model and these drawings without creative efforts.

[0020] Figure 1It is an exploded view of the waterproof inlet valve provided by this specific embodiment;

[0021] Figure 2 It is a schematic structural view of the base in the waterproof inlet valve provided by this specific embodiment;

[0022] Figure 3 It is an internal sectional view of the waterproof inlet valve provided by this specific embodiment;

[0023] Figure 4 It is Figure 3 The enlarged view at position A in

[0024] Figure 5 It is a schematic structural view of the outer housing of the waterproof inlet valve provided by this specific embodiment.

[0025] In the figure:

[0026] 1. Base; 11. Mounting surface; 12. Annular seal; 13. Groove; 14. Sealing ring; 15. Threading hole; 2. Valve body; 21. Water inlet; 22. Through pipe; 23. Water outlet; 3. Functional module; 4. Outer sealing cavity; 5. Outer housing; 6. Lead wire; 7. Elastic sealing sleeve; 71. Card slot; 72. Chamfer. Specific embodiment

[0027] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present utility model clearer, the technical solutions of the embodiments of the present utility model will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present utility model.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] The first specific embodiment of the present utility model is as follows:

[0031] Refer to Figures 1 to 5 , a waterproof inlet valve, which includes a base 1. One end of the base 1 is connected to a valve body 2. The valve body 2 is provided with a water inlet 21, a through pipe 22, and a water outlet 23 in sequence along a preset direction for connecting the inlet water path of a water purifier in series. The other end of the base 1 away from the valve body 2 is connected to a functional module 3. The functional module 3 integrates a coil assembly, an iron core assembly, and a sealing assembly and is connected to the through pipe 22 of the valve body 2 for opening and closing the internal water path of the valve body 2.

[0032] Specifically, during use, the water inlet 21 of the valve body 2 is connected to the water inlet end of the water purifier, and the water outlet 23 of the valve body 2 is connected to the water outlet end of the water purifier, so that the valve body 2 is connected in series to the inlet water path of the water purifier. After the coil assembly is energized, the iron core assembly is controlled, and the iron core assembly moves in the through pipe 22 of the valve body 2, thereby closing or opening the through pipe 22. The sealing assembly is wrapped outside the coil assembly and the iron core assembly and is connected to the base 1 through fasteners such as screws for initially isolating the coil assembly and the iron core assembly from the outside. It is common general knowledge in the art that the functional module 3 of the electromagnetic inlet valve integrates a coil assembly, an iron core assembly, and a sealing assembly, and the specific structures of each component will not be elaborated here.

[0033] To reduce the risk of damage to the coil assembly and the iron core assembly of the inlet valve caused by the humid environment under the kitchen when the inlet valve is applied to an under-counter water purifier. In this specific embodiment, an outer sealing cavity 4 is formed on the base 1, and the functional module 3 is arranged in the outer sealing cavity 4. Through the outer sealing cavity 4 and the sealing assembly of the functional component, secondary isolation is achieved, the waterproof performance of the inlet valve is improved, the intrusion of external water vapor is effectively blocked, the metal parts of the inlet valve are prevented from being corroded, and the service life of the inlet valve is prolonged.

[0034] Refer to Figure 1 , Figure 3 and Figure 5 , to reduce the difficulty of production and assembly. In this embodiment, the waterproof inlet valve further includes an outer housing 5. The outer housing 5 is detachably and sealingly connected to the base 1, and the outer sealing cavity 4 is jointly formed by the outer housing 5 and the base 1.

[0035] Specifically, the outer housing 5 is a cylindrical structure with an opening at one end. The base 1 is provided with a mounting surface 11. The outer housing 5 is detachably connected to the mounting surface 11 through fasteners such as screws and bolts, so that the end face of the outer housing 5 with the opening abuts and is in contact with the mounting surface 11. During use, the outer housing 5 is connected to the mounting surface 11 through fasteners, and the outer sealing cavity 4 is sealed by the end face being in contact with the mounting surface 11. The structure is simple and easy to assemble.

[0036] Reference Figure 2 、 Figure 4 In order to improve the connection sealing performance between the outer housing 5 and the mounting surface 11, a ring-shaped seal 12 is provided on the mounting surface 11 for sealing and inserting the opening of the outer housing 5. On the basis that the outer housing 5 abuts against the mounting surface 11 through the opening end face, a ring-shaped seal 12 is added to the mounting surface 11 to insert the opening of the outer housing 5. An interference fit is formed between the ring-shaped seal 12 and the outer housing 5, that is, the outer wall of the ring-shaped seal 12 is adapted to abut against the inner wall of the opening of the outer housing 5, so as to achieve the purpose of extending the sealing path between the outer housing 5 and the mounting surface 11 and increasing the difficulty for external water vapor to enter the outer sealing cavity 4. In this specific embodiment, the ring-shaped seal 12 is integrally formed on the base 1. Of course, it can also be connected to the base 1 by welding, bonding or other methods.

[0037] Considering that the ring-shaped seal 12 seals and inserts the opening of the outer housing 5, and an interference fit is formed between the outer wall of the ring-shaped seal 12 and the inner wall of the opening of the outer housing 5, which requires relatively high production and processing precision. For this reason, in this specific embodiment, a groove 13 is provided on the outer wall surface of the ring-shaped seal 12, and a sealing ring 14 is embedded in the groove 13. The sealing ring 14 is made of rubber and is used to elastically abut against the inner wall of the opening of the outer housing 5. The advantages of providing the groove 13 and the sealing ring 14 are as follows: compared with the original sealing form in which the ring-shaped seal 12 is adapted to insert the outer housing 5 to form an interference fit, when the ring-shaped seal 12 inserts the opening of the outer housing 5, the inner wall of the opening of the outer housing 5 is elastically abutted radially by the sealing ring 14, which can further enhance the connection strength between the ring-shaped seal 12 and the opening of the outer housing 5, improve the sealing performance, and at the same time, can reduce the dimensional requirements for the fit between the ring-shaped seal 12 and the opening of the outer housing 5, which is beneficial to reducing the production difficulty and the product defect rate.

[0038] In this specific embodiment, the functional module 3 of the water inlet valve is connected with a lead wire 6. The outer sealing cavity 4 is provided with a wire passing hole 15. The lead wire 6 is hermetically passed through the wire passing hole 15 and extends out of the outer sealing cavity 4 for connecting an external power supply and a control module to supply power and command control to the functional module 3. Through the above technical solution, the connection end of the lead wire 6 can also be built into the outer sealing cavity 4, reducing the risk of moisture absorption at the connection between the functional module 3 and the lead wire 6 and further improving the waterproof performance of the water inlet valve.

[0039] Reference Figure 2, for the convenience of actual assembly production, in this specific embodiment, the wire threading hole 15 is preferably formed on the base 1, so that during the assembly production process of "connecting the lead wire 6 to the functional module 3 through the wire threading hole 15 on the base 1", it will not be interfered by the outer casing 5.

[0040] There are various ways to seal the lead wire 6 through the wire threading hole 15. For example, the diameter of the lead wire 6 is larger than the inner diameter of the wire threading hole 15, and an interference fit is formed between the outer wall of the lead wire 6 and the inner wall of the wire threading hole 15; another example is that sealant can be sprayed at the connection between the lead wire 6 and the wire threading hole 15 for plugging; however, both of the above two methods are not conducive to assembly and later disassembly and maintenance. Therefore, this specific embodiment provides another preferred implementation for the lead wire 6 to be hermetically passed through the wire threading hole 15.

[0041] Specifically, an elastic sealing sleeve 7 is sleeved outside the lead wire 6, and a clamping groove 71 for clamping the wire threading hole 15 is formed by the inward depression of the outer wall of the sealing ring 14. During use, the elastic sealing sleeve 7 can be pre-sleeved outside the lead wire 6. After the lead wire 6 passes through the wire threading hole 15 and completes the connection with the functional module 3, the elastic sealing sleeve 7 on the lead wire 6 is dragged again, and the elastic sealing sleeve 7 is pushed into the wire threading hole 15. The clamping groove 71 of the elastic sealing sleeve 7 radially abuts against the inner wall of the wire threading hole 15, so that the elastic sealing sleeve 7 shrinks and clamps the lead wire 6, enabling the lead wire 6 to be detachably sealed through the wire threading hole 15, with reliable sealing and simple structure.

[0042] To reduce the difficulty of the elastic sealing sleeve 7 being clamped into the wire threading hole 15, chamfers 72 are provided at both ends of the elastic sealing sleeve 7.

[0043] The second specific embodiment of the present invention is:

[0044] A water purifier, especially an under-sink water purifier, which includes the waterproof inlet valve shown in the first specific embodiment.

[0045] Note that the above is only the preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments here. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A waterproof water inlet valve, characterized in that: include; A base (1), and a valve body (2) connected to the base (1) and used to connect in series the water inlet waterway of the water purifier; A functional module (3) which integrates a coil assembly, an iron core assembly and a sealing assembly, wherein the functional module (3) is connected to the base (1) and communicates with the valve body (2) to open and close the internal water path of the valve body (2); An outer sealing cavity (4) is formed on the base (1); The functional module (3) is arranged in the outer sealed cavity (4).

2. The waterproof water inlet valve according to claim 1, characterized in that: An outer shell (5) is detachably and sealingly connected to the base (1); the outer shell (5) and the base (1) together form the outer sealed cavity (4).

3. The waterproof water inlet valve according to claim 2, characterized in that: The outer shell (5) is a cylindrical structure with an opening at one end, the base (1) is provided with a mounting surface (11), and the outer shell (5) is connected to the mounting surface (11) via a fastener, so that the end surface of the outer shell (5) provided with the opening fits and abuts against the mounting surface (11).

4. The waterproof water inlet valve according to claim 3, characterized in that: An annular seal (12) is provided on the mounting surface (11), and the annular seal (12) is used to seal the opening of the outer shell (5) for insertion.

5. The waterproof water inlet valve according to claim 4, characterized in that: The outer wall surface of the annular seal (12) is provided with a groove (13), and a sealing ring (14) is embedded in the groove (13). The sealing ring (14) is used to elastically abut against the inner wall of the opening of the outer shell (5).

6. The waterproof water inlet valve according to any one of claims 2 to 5, characterized in that: The water inlet valve also includes a lead wire (6), the outer sealed cavity (4) is provided with a threading hole (15), the lead wire (6) is sealedly passed through the threading hole (15) and extends into the interior of the outer sealed cavity (4) for connecting to the functional module (3).

7. The waterproof water inlet valve according to claim 6, characterized in that: The lead wire (6) is externally sleeved with an elastic sealing sleeve (7), and the outer wall of the sealing ring (14) is recessed inwards to form a clamping groove (71) for clamping the threading hole (15).

8. The waterproof water inlet valve according to claim 7, characterized in that: Both ends of the elastic sealing sleeve (7) are provided with chamfers (72).

9. The waterproof water inlet valve according to claim 6, characterized in that: The threading hole (15) is formed on the base (1).

10. A water purifier, characterized in that: It comprises a waterproof water inlet valve as described in any one of claims 1 to 9.

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