Water purifier

Abstract

The utility model relates to a water purifier. The water purifier comprises a liquid storage device, a first valve assembly and a liquid storage part, the liquid storage device is provided with a first connecting pipe communicated with an inner cavity of the liquid storage device, and the liquid storage part is provided with a second connecting seat communicated with an inner cavity of the liquid storage part; the first valve assembly comprises a first valve element located in the first connecting pipe and a sealing ring. The first valve element is used for correspondingly opening or closing the first valve assembly when the second connecting base is inserted into or pulled out of the first connecting pipe. One end of the sealing ring is matched with the first connecting pipe in a sealing mode, the other end of the sealing ring is provided with a matching part, the matching part is movably arranged on the first valve element in a sleeving mode, the first connecting pipe, the first valve element and the sealing ring jointly form a containing space, and the containing space is communicated with an inner cavity of the liquid storage device when the first valve assembly is opened. The water purifier disclosed by the utility model can avoid the water leakage condition when the liquid storage piece is taken.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, in particular to a water purifier. Background Art

[0002] As people's living standards improve, more and more people pursue a high-quality life, and water purifiers are undoubtedly one of the best choices. The water purifier in the related technology may include a liquid storage member and a liquid reservoir, and the water inlet of the liquid storage member is detachably connected to the water supply interface of the water reservoir such as the liquid reservoir by plugging and unplugging. However, when the user plugs and unplugs the liquid storage member, the water inlet of the liquid storage member and the water supply interface of the water reservoir often leak, resulting in a poor user experience. When the liquid reservoir and the liquid storage member are a raw water tank or a raw water tank seat, after the two are separated, there will be water accumulation at the edge of the valve core of the raw water tank seat, or the raw water tank may drip. Utility Model Content

[0003] Based on this, it is necessary to provide a water purifier that can avoid water leakage when taking out the liquid storage part and improve the user experience.

[0004] The water purifier provided in the embodiment of the present application includes a liquid reservoir, a first valve assembly and a liquid storage member;

[0005] The liquid reservoir is provided with a first connecting pipe communicating with the inner cavity of the liquid reservoir, and the liquid storage member is provided with a second connecting seat communicating with the inner cavity of the liquid storage member;

[0006] The first valve assembly includes a first valve core and a sealing ring located in the first connecting pipe, and the first valve core is used to correspondingly open or close the first valve assembly when the second connecting seat is inserted into or pulled out of the first connecting pipe;

[0007] One end of the sealing ring is sealed and matched with the first connecting tube, and the other end is provided with a matching part, which is movably mounted on the first valve core. The first connecting tube, the first valve core and the sealing ring together form an accommodating space, which is connected to the inner cavity of the liquid reservoir when the first valve assembly is opened.

[0008] In one of the embodiments, a sealing member is provided on the first valve core, and the sealing member is used to seal and cooperate with the matching portion to seal the accommodating space.

[0009] In one of the embodiments, the water purifier further includes a second valve assembly disposed in the second connecting seat;

[0010] The second valve assembly includes a driving member, and when the second connecting seat is separated from the first connecting pipe, the blocking member and the matching portion are blocked and matched;

[0011] When the second connecting seat is inserted into the first connecting tube, the driving member abuts against the matching portion and drives the matching portion to separate from the blocking member, so that the second connecting seat is connected to the inner cavity of the liquid storage device through the accommodating space.

[0012] In one embodiment, the sealing ring is configured as an elastic member, and the mating portion can move along a first direction under the drive of a driving member, or elastically reset along a second direction opposite to the first direction, so that the volume of the accommodating space becomes smaller or larger, and the first direction is the insertion direction of the second connecting seat into the first connecting tube.

[0013] In one embodiment, the second valve assembly includes a second valve seat and a second valve core inserted into the second valve seat, the second valve seat is connected to the second connecting seat, the second valve core can move relative to the second connecting seat in a second direction, or elastically reset in a first direction opposite to the second direction, so as to open or close the valve hole of the second valve seat; the second valve seat forms a driving member;

[0014] The second direction is a direction in which the second connecting seat is pulled out relative to the first connecting tube.

[0015] In one of the embodiments, the setting position of the second valve seat corresponds to the setting position of the matching part, and the setting position of the second valve core corresponds to the setting position of the first valve core. The second connecting seat is located in the first connecting tube, and the state in which the second valve seat just contacts the matching part is defined as an initial state. In the initial state, there is a gap between the first valve core and the second valve core, or the first valve core and the second valve core contact each other and do not transmit force to each other.

[0016] In one embodiment, the matching portion is loosely matched with the first valve core, and the blocking member blocks the end surface of the matching portion facing the second valve core.

[0017] In one embodiment, the first valve core includes a first valve core body and a plurality of first ribs, the plurality of first ribs are spaced apart from and arranged around the outer circumferential surface of the first valve core body, and the sealing member is disposed at the end of the first valve core body away from the inner cavity of the liquid reservoir and is connected to each first rib.

[0018] In one embodiment, the first valve core includes a first valve core body and a plurality of first ribs, wherein the plurality of first ribs are spaced apart and arranged around an outer peripheral surface of the first valve core body;

[0019] The matching part is constructed as an annular part and is sleeved on the outer peripheral side of each first rib and is gap matched with the outer peripheral side of each first rib. The inner diameter of the matching part is less than 7mm.

[0020] In one embodiment, the matching portion and the blocking member are both configured as annular members.

[0021] In one embodiment, the blocking member is configured as a disc-shaped structure, and the outer diameter of the blocking member is greater than the inner diameter of the matching portion.

[0022] In one embodiment, the sealing ring includes an annular main body and a neck portion, the neck portion and the matching portion both surround the outside of the first valve core, one end of the neck portion is connected to the main body, and the other end is connected to the matching portion.

[0023] In one embodiment, the neck portion and the fitting portion are both located inside the main body; or

[0024] The main body portion, the neck portion and the matching portion are arranged in sequence along the second direction.

[0025] In one embodiment, the end of the main body away from the neck portion is provided with a first flange portion folded outward, the outer peripheral surface of the main body is pressed against the inner wall of the first connecting tube, and the first flange portion is sleeved on the end of the first connecting tube away from the liquid reservoir.

[0026] In one embodiment, the water purifier also includes an outer shell, the liquid reservoir is connected to the outer shell, the outer shell is provided with a connecting pipe for the first connecting pipe to pass through, the end of the connecting pipe is provided with a second flange portion folded inward, and the second flange portion presses the first flange portion against the end of the first connecting pipe facing away from the liquid reservoir.

[0027] In one embodiment, the inner diameter of the matching portion is less than or equal to the inner diameter of the second valve seat;

[0028] Furthermore, the surfaces of the matching portion and the second valve seat facing each other have overlapping portions when projected onto a plane perpendicular to the first direction.

[0029] In one embodiment, the outer diameter of the second connecting seat is smaller than the inner diameter of the main body;

[0030] An annular protrusion is arranged inside the main body. When the second connection seat is inserted into the first connection pipe, the protrusion presses against the outer wall of the second connection seat.

[0031] In one embodiment, the opposing surfaces of the matching portion and the second valve seat are defined as a first surface and a second surface, respectively;

[0032] In an initial state, an end of the first valve core facing away from the inner cavity of the liquid reservoir protrudes from the first surface;

[0033] The distance D1 between the end surface of the first valve core facing the second valve core and the first surface and the distance D2 between the end surface of the second valve core facing the first valve core and the second surface satisfy:

[0034] D1<D2.

[0035] In one of the embodiments, an end surface of the mating portion facing away from the first surface is defined as a third surface;

[0036] A partially raised first step portion is provided between the two ends of the first valve core, and the first step portion is used to block the moving path of the matching portion along the first direction;

[0037] The first step portion includes a first step surface extending in the radial direction of the first valve core, and the first step surface is arranged opposite to the third surface;

[0038] A distance D3 between the end surface of the first valve core facing the second valve core and the first step surface and a thickness dimension D4 of the matching portion along the first direction satisfy: D3>D4.

[0039] In one embodiment, the first valve assembly also includes a first valve seat, a first valve core is inserted into the first valve seat, and the first valve seat is connected to a first connecting tube. The first valve core can move in a first direction relative to the first valve seat, or elastically reset in a second direction opposite to the first direction to open or close the valve hole of the first valve seat, and the first direction is an insertion direction of the second connecting seat into the first connecting tube.

[0040] In one embodiment, the first valve seat includes a first valve seat body, the first valve seat body is configured with a first accommodating cavity with openings at both ends, and the opening facing the inner cavity of the liquid reservoir forms a valve hole of the first valve seat;

[0041] The first valve core penetrates the first accommodating cavity and cooperates with the cavity wall of the first accommodating cavity in a guiding manner, and the first blocking end of the first valve core enters the inner cavity of the liquid reservoir through the valve hole of the first valve seat.

[0042] In one embodiment, the first valve assembly further includes a first elastic member, which is disposed between an inner wall of the first valve seat and the first valve core, so as to always apply an elastic force toward the second direction to the first valve core.

[0043] In one embodiment, at least one second step portion is provided on the outer surface of the first valve core, and two ends of the first elastic member are respectively pressed between the inner wall of the first valve seat and the at least one second step portion.

[0044] In one embodiment, the second valve seat comprises a second valve seat body, the second valve seat body is configured with a second accommodating cavity with openings at both ends, and the opening away from the inner cavity of the liquid storage member forms a valve hole of the second valve seat;

[0045] The second valve core penetrates the second accommodating cavity and cooperates with the cavity wall of the second accommodating cavity for guidance, and the second blocking end of the second valve core blocks the valve hole of the second valve seat when moving along the first direction.

[0046] In one of the embodiments, a third flange portion folded inward is provided at an edge of the valve hole of the second valve seat, and the third flange portion is used to cooperate with the second blocking end stopper of the second valve core.

[0047] In one embodiment, the second valve assembly further includes a second elastic member, which is disposed between an inner wall of the second valve seat and a second blocking end of the second valve core, so as to always apply an elastic force toward the first direction to the second valve core.

[0048] In one of the embodiments, the outer wall of the liquid storage component is configured with a mounting cavity communicated with the inner cavity of the liquid storage component, and the second connecting seat is installed in the mounting cavity.

[0049] In one of the embodiments, the liquid reservoir is configured to communicate with a water tank.

[0050] In one embodiment, the liquid reservoir is a communicating vessel, and the liquid storage member is a clean water tank; or

[0051] The liquid reservoir is a raw water tank seat, and the liquid storage part is a raw water tank; or

[0052] The liquid reservoir is a raw water tank, and the liquid storage part is a raw water tank seat.

[0053] Beneficial effects of the above water purifier:

[0054] One end of the sealing ring is sealed and fitted with the first connecting tube, and the other end is provided with a fitting portion, which is movably mounted on the first valve core. The first connecting tube, the first valve core and the sealing ring together form an accommodating space. In this way, when the first connecting tube is not inserted into the second connecting seat, water leaked from one side of the liquid reservoir can be temporarily stored in the accommodating space, effectively preventing water from leaking from the first connecting tube 40. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 A schematic diagram of the structure of the liquid reservoir and the liquid storage element in the water purifier provided in the embodiment of the present application cooperating with each other;

[0056] Figure 2 A schematic cross-sectional view of a water purifier provided in an embodiment of the present application;

[0057] Figure 3 for Figure 2 A local enlarged view of point A;

[0058] Figure 4a A schematic diagram of the structure of a first valve core in a water purifier provided in an embodiment of the present application;

[0059] Figure 4b A schematic diagram of the structure of the second valve seat in the water purifier provided in an embodiment of the present application;

[0060] Figure 5 A schematic diagram of the structure of the water purifier provided in the embodiment of the present application in an initial state;

[0061] Figure 6 A schematic diagram of the structure of the water purifier provided in the embodiment of the present application in a first state;

[0062] Figure 7 A schematic diagram of the structure of the water purifier provided in the embodiment of the present application in the second state;

[0063] Figure 8 A schematic diagram of the structure of the water purifier provided in the embodiment of the present application in the third state;

[0064] Fig. 9 A schematic diagram of another structure of the first valve assembly in the water purifier provided in an embodiment of the present application;

[0065] Fig.10 A schematic diagram of another structure of the second valve assembly in the water purifier provided in an embodiment of the present application.

[0066] Description of Figure Numbers:

[0067] 100. Water purifier;

[0068] 10. liquid storage device; 101. inner cavity of liquid storage device; 144. sealing end of liquid storage device; 1441. annular protrusion; 145. base; 146. connecting rib; 20. liquid storage device;

[0069] 30. First valve assembly; 31. First valve seat; 311. Valve hole of first valve seat; 312. First valve seat body; 313. First accommodating cavity; 32. First valve core; 321. Blocking member; 322. First valve core body; 323. First rib; 324. First step portion; 3241. First step surface; 325. First blocking end; 326. First valve core sealing member; 33. First elastic member; 34. Second step portion; 40. First connecting pipe;

[0070] 50, second valve assembly; 501, driving member; 51, second valve seat; 511, valve hole of second valve seat; 512, second valve seat body; 5121, base; 5122, connecting rib; 513, second accommodating cavity; 514, third flange portion; 52, second valve core; 521, second blocking end; 53, second elastic member; 60, second connecting seat; 70, housing; 71, connecting pipe; 72, second flange portion;

[0071] 80, sealing ring; 81, matching portion; 811, first surface; 812, second surface; 813, third surface; 82, main body; 821, raised portion; 83, neck portion; 84, first flange portion; 91, installation cavity; 92, avoidance cavity;

[0072] F, first direction; S, second direction. DETAILED DESCRIPTION

[0073] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0074] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0075] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0076] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0078] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0079] The water purifier according to the embodiment of the present application is described below with reference to the accompanying drawings.

[0080] Figure 1 This is a schematic diagram of the structure of the liquid reservoir and the liquid storage element in the water purifier provided in the embodiment of the present application cooperating with each other, Figure 2 This is a schematic cross-sectional view of the water purifier provided in an embodiment of the present application. Figure 3 for Figure 2 A local enlarged view of point A; Figure 4a A schematic diagram of the structure of a first valve core in a water purifier provided in an embodiment of the present application; Figure 4b This is a schematic diagram of the structure of the second valve seat in the water purifier provided in an embodiment of the present application. Figure 5 This is a schematic diagram of the structure of the water purifier provided in an embodiment of the present application in an initial state.

[0081] Reference Figure 1 , Figure 2 , Figure 3 An embodiment of the present application provides a water purifier 100 , including a liquid reservoir 10 , a liquid storage member 20 , and a first valve assembly 30 .

[0082] The liquid reservoir 10 is provided with a first connecting tube 40 connected to the inner cavity of the liquid reservoir 10, and the liquid storage member 20 is provided with a second connecting seat 60 connected to the inner cavity of the liquid storage member 20; the first valve assembly 30 includes a first valve core 32 and a sealing ring 80 located in the first connecting tube 40, and the first valve core 32 is used to open or close the first valve assembly 30 accordingly when the first connecting tube 40 is inserted into or pulled out of the second connecting seat 60; one end of the sealing ring 80 is sealed and matched with the first connecting tube 40, and the other end is provided with a matching portion 81, and the matching portion 81 is movably mounted on the first valve core 32. The first connecting tube 40, the first valve core 32 and the sealing ring 80 together form an accommodating space C, and the accommodating space C is connected to the inner cavity of the liquid reservoir 10 when the first valve assembly 30 is opened.

[0083] One end of the sealing ring 80 is sealed and fitted with the first connecting tube 40, and the other end is provided with a fitting portion 81, which is movably mounted on the first valve core 32. The first connecting tube 40, the first valve core 32 and the sealing ring 80 together form an accommodating space C. In this way, when the second connecting seat 60 is not inserted into the first connecting tube 40, water leaked from one side of the liquid reservoir 10 can be temporarily stored in the accommodating space C, effectively preventing water from leaking from the first connecting tube 40.

[0084] In addition, when the liquid reservoir 10 and the liquid storage member 20 are a raw water tank or a raw water tank seat, after the two are separated, the water leaked from one side of the liquid reservoir 10 will also be temporarily stored in the accommodating space C, and will not leak to the outside of the liquid reservoir 10, which can prevent water dripping. In addition, there is no possibility that dust and other debris will enter the liquid reservoir 10. In the embodiment of the present application, a blocking member 321 is provided on the first valve core 32, and the blocking member 321 is used to block and cooperate with the matching portion 81 to seal the accommodating space C. In this way, when the second connecting seat 60 is not inserted into the first connecting pipe 40, it can better prevent water from leaking from the sealed accommodating space C.

[0085] Further, the water purifier also includes a second valve assembly 50 disposed in the second connection seat. The second valve assembly 50 includes a driving member 501. When the second connection seat 60 is separated from the first connection pipe 40, the blocking member 321 is blocked and matched with the matching portion 81. When the second connection seat 60 is inserted into the first connection pipe 40, the driving member 501 abuts against the matching portion 81 and drives the matching portion 81 to separate from the blocking member 321, so that the second connection seat 60 is connected to the inner cavity of the liquid reservoir 10 through the accommodating space C. In this way, when the second connection seat 60 is inserted into the first connection pipe 40, the water in the liquid reservoir 10 can flow into the first connection pipe 40 through the accommodating space C.

[0086] Furthermore, the sealing ring 80 is configured as an elastic member, and the matching portion 81 can move along a first direction under the drive of the driving member 501, or elastically reset along a second direction opposite to the first direction, so as to reduce or increase the volume of the accommodating space C. The first direction F is the insertion direction of the second connecting seat 60 into the first connecting tube 40. In this way, when the second connecting seat 60 is inserted into the first connecting tube 40, the stale water in the accommodating space C can be squeezed out to prevent bacteria from growing here when it is used for a long time. When the second connecting seat 60 is inserted into the first connecting tube 40 and plugged in place, the driving member 501 pushes the matching portion 81 to the position closest to the liquid reservoir 10, and the volume of the accommodating space C is the smallest.

[0087] In the embodiment of the present application, the second valve assembly 50 includes a second valve seat 51 and a second valve core 52 inserted in the second valve seat 51. The second valve seat 51 is connected to the second connection seat 60. The second valve core 52 can move in the second direction S relative to the second connection seat 60, or elastically reset in the first direction F opposite to the second direction S to open or close the valve hole 511 of the second valve seat; the second valve seat 51 forms a driving member. The second direction S is the direction in which the second connection seat 60 is pulled out relative to the first connection pipe 40. The first direction is the direction in which the second connection seat 60 is inserted relative to the first connection pipe 40. Specifically, the second valve core 52 can move in the second direction S relative to the second connection seat 60 to open the valve hole 511 of the second valve seat. The second valve core 52 can elastically reset in the first direction F relative to the second connection seat 60 to close the valve hole 511 of the second valve seat.

[0088] Similarly, the first valve assembly 30 further includes a first valve seat 31, a first valve core 32 is disposed in the first valve seat 31, the first valve seat 31 is connected to the first connecting pipe 40, and the first valve core 32 can move relative to the first valve seat 31 along a first direction F, or elastically reset along a second direction S opposite to the first direction F, so as to open or close the valve hole 311 of the first valve seat. Specifically, the first valve core 32 can move relative to the first valve seat 31 along the first direction F to open the valve hole 311 of the first valve seat, and the first valve core 32 can move relative to the first valve seat 31 along the second direction S to close the valve hole 311 of the first valve seat.

[0089] In the embodiment of the present application, the liquid reservoir 10 can be used to communicate with a water tank (not shown), so that the liquid storage member 20 can be connected to the water tank through the liquid reservoir. The second connecting seat 60 can be constructed as a tubular member. In addition, one end of the sealing ring 80 is sealed and matched with the inner wall of the first connecting tube 40, and the matching portion 81 and the blocking member 321 can both be set as annular members.

[0090] The fitting portion 81 can be loosely fitted in the outer periphery of the first valve core 32 , and the blocking member 321 can block the end surface of the fitting portion 81 facing the second valve core 52 . The fitting portion 81 can move in the first direction F or elastically reset in the second direction S relative to the first valve core 32 .

[0091] In the embodiment of the present application, the setting position of the second valve seat 51 corresponds to the setting position of the matching portion 81, and the setting position of the second valve core 52 corresponds to the setting position of the first valve core 32. The second connecting seat 60 is located in the first connecting tube 40, and the state in which the second valve seat 51 just contacts the matching portion 81 is defined as the initial state. In the initial state, there is a gap between the first valve core 32 and the second valve core 52, or the first valve core 32 and the second valve core 52 contact each other and do not transmit force to each other.

[0092] It can be understood that the liquid reservoir 10 is provided with a first connecting pipe 40 communicating with the inner cavity of the liquid reservoir 10, and the liquid storage member 20 is provided with a second connecting seat 60 communicating with the inner cavity of the liquid storage member 20. In this way, by inserting the second connecting seat 60 into the first connecting pipe 40 and opening the first valve assembly 30 and the second valve assembly 50 at the same time, the liquid storage member 20 can be connected with the water tank through the liquid reservoir 10, thereby realizing the connection between the water tank and the liquid storage member 20. The above description is made by taking the water source as an example of a water tank, and those skilled in the art can understand that the water source can also be tap water.

[0093] Furthermore, by connecting the first valve seat 31 to the first connecting pipe 40, the first valve core 32 can move relative to the first valve seat 31 in the first direction F to open the valve hole 311 of the first valve seat, and the second valve seat 51 is connected to the second connecting seat 60, the second valve core 52 can move relative to the second valve seat 51 in the second direction S to open the valve hole 511 of the second valve seat, and the setting position of the second valve core 52 corresponds to the setting position of the first valve core 32. In this way, when the second connecting seat 60 is plugged into the first connecting pipe 40, the first valve assembly 30 and the second valve assembly 50 interact with each other, so that the second valve core 52 and the first valve core 32 can move in the second direction S and the first direction F respectively to open the valve hole 511 of the second valve seat and the valve hole 311 of the first valve seat, so that the second valve assembly 50 and the first valve assembly 30 are both in an open state.

[0094] On the other hand, the first valve core 32 can be elastically reset along the second direction S relative to the first valve seat 31 to close the valve hole 311 of the first valve seat, and the second valve core 52 can be elastically reset in the first direction F relative to the second valve seat 51 to close the valve hole 511 of the second valve seat. In this way, when the second connecting seat 60 is detached from the first connecting pipe 40, the second valve core 52 and the first valve core 32 are both elastically reset to close the valve hole 511 of the second valve seat and the valve hole 311 of the first valve seat, so that the first valve assembly 30 and the second valve assembly 50 are both in a closed state.

[0095] Furthermore, by providing a blocking member 321, the blocking member 321 is used to block the end surface of the matching portion 81 facing the second valve core 52, and the matching portion 81 can be elastically deformed relative to the first valve core 32 in the first direction F to move or elastically reset in the second direction S. The setting position of the second valve seat 51 corresponds to the setting position of the matching portion 81, and when the second connection seat 60 is inserted into the first connection pipe 40, and the second valve seat 51 just contacts the matching portion 81, there is a gap between the first valve core 32 and the second valve core 52.

[0096] With such arrangement, since the outer end of the sealing ring 80 is sealed with the inner wall of the first connecting tube 40, when the second connecting seat 60 is inserted into the first connecting tube 40, the second valve seat 51 contacts the matching portion 81 to form a seal. At this time, there is a gap between the first valve core 32 and the second valve core 52, and there is no contact between the two, so that the first valve assembly 30 and the second valve assembly 50 are both in a closed state. As the second connecting seat 60 is inserted deeper in the first direction F, the matching portion 81 is pushed by the second valve seat 51 to move in the first direction F relative to the first valve core 32, and elastically deforms, so that the second valve seat 51 and the matching portion 81 are pressed tightly and always maintain a sealed state. During this process, no matter whether the first valve assembly 30 and the second valve assembly 50 are opened or not, the water in the first valve assembly 30 and the second valve assembly 50 cannot leak out from the junction between the matching portion 81 and the second valve seat 51. Therefore, no water leakage will occur during the entire insertion process of the second connecting seat 60.

[0097] When the second connecting seat 60 is separated from the first connecting pipe 40, contrary to the above process, as the second connecting seat 60 is pulled out in the second direction S, the second valve core 52 and the first valve core 32 will first be separated from each other, so that the second valve assembly 50 and the first valve assembly 30 are closed respectively. On this basis, the second valve seat 51 continues to move in the second direction S, and the pressure against the matching portion 81 is gradually reduced until the second valve seat 51 leaves the matching portion 81. The second valve seat 51 is in the elastic reset process, so it is always pressed against the matching portion 81 to maintain the sealing matching relationship between the two. In this process, no matter the first valve assembly 30 and the second valve assembly Regardless of the closing order of the first valve assembly 30 and the second valve assembly 50, during the entire closing process of the first valve assembly 30 and the second valve assembly 50, the water in the first valve assembly 30 and the second valve assembly 50 cannot leak out from the junction between the matching portion 81 and the second valve seat 51. In other words, after the first valve assembly 30 and the second valve assembly 50 are closed, the second valve seat 51 and the matching portion 81 will be out of contact and the sealing state will be released. This is compared with the situation in the related art that water always flows out during the closing process of the first valve assembly 30 and the second valve assembly 50, thereby avoiding water leakage during the pull-out process, which also greatly reduces the amount of water leakage during the entire pull-out process of the second connecting seat 60.

[0098] Furthermore, the outer end of the sealing ring 80 is sealingly matched with the inner wall of the first connecting tube 40, the matching portion 81 at the inner end of the sealing ring 80 is sleeved and gap-fitted on the outer periphery of the first valve core 32, and the blocking member 321 blocks the end face of the matching portion 81 facing the second valve core 52. In this way, no matter during the insertion or removal of the second connecting seat 60, after the second valve seat 51 and the matching portion 81 are out of contact, the end face of the matching portion 81 will cooperate with the end face of the blocking member 321 provided on the first valve core 32 to form a seal, thereby preventing water in the first valve assembly 30 from leaking out. In this way, water leakage will never occur during the entire removal process of the second connecting seat 60.

[0099] Reference Figure 4aThe first valve core 32 includes a first valve core body 322 and a plurality of first ribs 323, the plurality of first ribs 323 are arranged at intervals and around the outer peripheral surface of the first valve core body 322, and the blocking member 321 is provided at the end of the first valve core body 322 away from the inner cavity of the liquid reservoir 10, and is connected to each of the first ribs 323. In this way, when the end surface of the blocking member 321 contacts and matches with the end surface of the matching portion 81, the gap between the first valve core 32 and the matching portion 81 can be completely blocked in the circumferential direction, and when the matching portion 81 moves in the first direction F under the pressure of the second valve seat 51, it can quickly detach from the blocking member 321. The matching portion 81 is gap-matched with the first ribs 323, so that after the matching portion 81 detaches from the blocking member 321, the passage between the matching portion 81 and the first valve core 32 is unobstructed, which facilitates the water in the liquid reservoir 10 to enter and exit the first valve core 32 assembly. After the liquid reservoir 10 is connected to the liquid storage member 20 , a water flow channel is formed between the liquid reservoir 10 in the liquid storage member 20 .

[0100] Furthermore, the blocking member 321 is constructed as a disc-shaped structure, and the outer diameter of the blocking member 321 is larger than the inner diameter of the matching portion 81. In this way, the blocking member 321 can reliably block the matching portion 81.

[0101] In the present application, continue to refer to Figure 3 The sealing ring 80 includes an annular main body 82 and a constricted neck 83. The constricted neck 83 and the matching portion 81 are both around the outside of the first valve core 32. One end of the constricted neck 83 is connected to the main body 82, and the other end is connected to the matching portion 81. The constricted neck 83 can be configured as an elastic member. In this way, when the matching portion 81 is subjected to an external force, since the constricted neck 83 is an elastic member, the matching portion 81 can move in the first direction F or elastically reset in the second direction S relative to the first valve core 32. The sealing ring can be made of a material with elastic rebound ability such as rubber or silicone.

[0102] When implementing it specifically, you can Figure 3 As shown, the necking portion 83 and the matching portion 81 are both located inside the main body 82. Alternatively, the main body 82, the necking portion 83 and the matching portion 81 may be arranged in sequence along the second direction S.

[0103] Furthermore, the end of the main body 82 away from the neck portion 83 is provided with a first flange portion 84 folded outward, the outer peripheral surface of the main body 82 is pressed against the inner wall of the first connecting tube 40, and the first flange portion 84 is sleeved on the end of the first connecting tube 40 away from the liquid reservoir 10. In this way, a good seal is formed between the first flange portion 84 and the inner wall of the first connecting tube 40, and the sealing ring 80 can also be installed on the first connecting tube 40 through the installation space formed between the first flange portion 84 and the main body 82.

[0104] Further, refer to Figure 1 and Figure 2 , Figure 3 The water purifier 100 further includes a housing 70, the liquid reservoir 10 is connected to the housing 70, the housing 70 is provided with a connecting pipe 71 for the first connecting pipe 40 to penetrate and insert, and the end of the connecting pipe 71 is provided with a second flange portion 72 folded inward, and the second flange portion 72 presses the first flange portion 84 against the end of the first connecting pipe 40 away from the liquid reservoir 10. In this way, the second flange portion 72 can press against the outside of the first flange portion 84, pressing the first flange portion 84 against the end of the first connecting pipe 40.

[0105] In the present application, continue to refer to Figure 3 The inner diameter of the matching portion 81 is smaller than or equal to the inner diameter of the second valve seat 51, and the projections of the matching portion 81 and the second valve seat 51 facing each other on a plane perpendicular to the first direction F have an overlapping portion. This arrangement facilitates the second valve seat 51 to smoothly press the matching portion 81 and move in the first direction F.

[0106] Furthermore, the outer diameter of the second connection seat 60 is smaller than the inner diameter of the main body 82, and an annular protrusion 821 is provided inside the main body 82. When the second connection seat 60 is inserted into the first connection tube 40, the protrusion 821 presses against the outer wall of the second connection seat 60. Such a configuration can also facilitate the smooth insertion of the second connection seat 60 into the first connection tube 40. The protrusion 821 pressing against the outer wall of the second connection seat 60 makes the insertion operation more handy, and on the other hand, facilitates the second connection seat 60 to form a seal with the sealing ring 80, thereby preventing the second connection seat 60 from withdrawing from the first connection tube 40.

[0107] In the present application, refer to Figure 5 The opposing surfaces of the matching portion 81 and the second valve seat 51 are defined as a first surface 811 and a second surface 812 , respectively.

[0108] In the initial state, the end of the first valve core 32 facing away from the inner cavity 101 of the liquid reservoir protrudes from the first surface 811, and the distance D1 between the end surface of the first valve core 32 facing the second valve core 52 and the first surface 811 and the distance D2 between the end surface of the second valve core 52 facing the first valve core 32 and the second surface 812 satisfy: D1<D2. Such a configuration facilitates that when the first surface 811 and the second surface 812 are in contact, there is still a gap between the first valve core 32 and the second valve core 52, ensuring that when the second connecting seat 60 is inserted, the matching portion 81 and the second valve seat 51 are first in contact, forming a seal and then opening the first valve assembly 30 and the second valve assembly 50. At the same time, when the second connecting seat 60 is pulled out, after the first valve assembly 30 and the second valve assembly 50 are closed, the matching portion 81 and the second valve seat 51 are out of contact again.

[0109] Further, the end surface of the matching portion 81 which is away from the first surface 811 is defined as a third surface 813. Figure 5 A partially raised first step portion 324 is provided between the two ends of the first valve core 32, and the first step portion 324 is provided on the moving path of the matching portion 81 toward the first direction F. The first step portion 324 includes a first step surface 3241 extending along the radial direction of the first valve core 32, and the first step surface 3241 is arranged opposite to the third surface 813. The distance D3 between the end surface of the first valve core 32 facing the second valve core 52 and the first step surface 3241 and the thickness dimension D4 of the matching portion 81 along the first direction F satisfy: D3>D4. With such arrangement, during the insertion of the second connecting seat 60, after the second valve seat 51 contacts the sealing ring 80, as the sealing ring 80 is pressed and deformed, the second valve core 52 contacts the first valve core 32 and opens the second valve core 52. As the second connecting seat 60 is further inserted, the second valve seat 51 can press the matching portion 81 to move in the first direction F relative to the first valve core 32 until the third surface 813 contacts the first step surface 3241. The second valve seat 51 continues to move forward along the first direction F by pressing the first step portion 324 through the matching portion 81, pushing the first valve core 32 to move in the first direction F to open the valve hole 311 of the first valve seat.

[0110] Further, the first valve seat 31 includes a first valve seat body 312, and the first valve seat body 312 is configured with a first accommodating cavity 313 with openings at both ends, and the opening facing the inner cavity of the liquid reservoir 10 forms a valve hole 311 of the first valve seat. The first valve core 32 penetrates the first accommodating cavity 313, and cooperates with the cavity wall of the first accommodating cavity 313 in a guided manner, and the first blocking end 325 of the first valve core 32 enters the inner cavity of the liquid reservoir 10 through the valve hole 311 of the first valve seat. A first valve core seal 326 may also be provided on the first blocking end 325 of the first valve core 32, which is used to form a sealing cooperation with the valve hole 311 of the first valve seat when contacting the valve hole 311 of the first valve seat.

[0111] Furthermore, the first valve assembly 30 further includes a first elastic member 33 , which is disposed between the inner wall of the first valve seat 31 and the first valve core 32 , so as to always apply an elastic force to the first valve core 32 in the second direction S. In this way, the elastic reset of the first valve core 32 can be achieved.

[0112] Furthermore, combined with Figure 3 and Figure 4a The outer surface of the first valve core 32 is provided with at least one second step portion 34, and the two ends of the first elastic member 33 are respectively pressed between the inner wall of the first valve seat 31 and the at least one second step portion 34. In this way, the first elastic member 33 can be simply positioned by being sleeved on the first valve core 32, and the two ends are respectively pressed between the inner wall of the first valve seat 31 and the second step portion 34.

[0113] Furthermore, combined with Figure 3 and Figure 4b The second valve seat 51 includes a second valve seat body 512, which is configured with a second accommodating cavity 513 with openings at both ends, and the opening facing away from the inner cavity of the liquid storage component 20, that is, the opening toward the first valve core 31, forms a valve hole 511 of the second valve seat.

[0114] In a specific implementation, the second valve seat body 512 may include two bases 5121 and a plurality of connecting ribs 5122 connected between the two bases 5121. Figure 3 In the figure, the section is cut between two adjacent connecting ribs 5122. Figure 3 The connecting rib 5122 is not shown.

[0115] The second valve core 52 penetrates the second accommodating cavity 513 and cooperates with the cavity wall of the second accommodating cavity 513 to guide. When the second blocking end 521 of the second valve core 52 moves along the first direction F, it blocks the valve hole 511 of the second valve seat.

[0116] A third flange portion 514 folded inwardly is provided at the edge of the valve hole 511 of the second valve seat. The third flange portion 514 is used to cooperate with the second blocking end 521 of the second valve core 52 for stopping.

[0117] In the embodiment of the present application, the second valve assembly 50 further includes a second elastic member 53, which is disposed between the inner wall of the second valve seat 51 and the second blocking end 521 of the second valve core 52, so as to always apply an elastic force toward the first direction F to the second valve core 52. In this way, the elastic reset of the second valve core 52 can be achieved.

[0118] In addition, for the installation of the second connecting base 60, please refer to Figure 2 The outer wall of the liquid storage part 20 is configured with a mounting cavity 91 communicating with the inner cavity of the liquid storage part 20, and the second connecting seat 60 is installed in the mounting cavity 91. Of course, an avoidance cavity 92 is also provided outside the mounting cavity 91 to accommodate the first connecting pipe 40.

[0119] Figure 6 This is a schematic diagram of the structure of the water purifier provided in the embodiment of the present application in the first state, Figure 7 This is a schematic diagram of the structure of the water purifier provided in the embodiment of the present application in the second state, Figure 8 This is a schematic structural diagram of the water purifier provided in an embodiment of the present application in a third state.

[0120] Combine the following Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8The plugging and unplugging process of the liquid storage member 20 and the liquid storage container 10 in the water purifier 100 according to the embodiment of the present application is described.

[0121] Figure 3 The second connection seat 60 is just inserted into the first connection pipe 40, and the first valve assembly 30 and the second valve assembly 50 are both in a closed state. The blocking member 321 blocks the end surface of the matching portion 81, so that the first valve assembly 30 side and the second valve assembly 50 side will not leak.

[0122] Figure 5 The first valve assembly 30 and the second valve assembly 50 are still in the closed state. The second surface 812 of the second valve seat 51 just contacts the first surface 811 of the matching portion 81. At this time, there is a gap between the first valve core 32 and the second valve core 52, and they are not in contact. The second surface 812 of the second valve seat 51 contacts the first surface 811 of the matching portion 81 to form a seal. The blocking member 321 blocks the end surface of the matching portion 81, and the water in the first valve assembly 30 and the second valve assembly 50 cannot leak out.

[0123] Reference Figure 6 When the second connection seat 60 is further inserted into the first connection pipe 40 along the first direction F, the first valve core 32 and the second valve core 52 are in contact. Since the elastic coefficient of the first elastic member 33 is greater than the elastic coefficient of the second elastic member 53, the second valve core 52 is pushed open by the first valve core 32, so that the second valve assembly 50 is opened, and the water purifier 100 is in the first state. In this process, since the second surface 812 of the second valve seat 51 and the first surface 811 of the matching portion 81 are always in contact to form a seal, water will not leak from between the second valve seat 51 and the matching portion 81.

[0124] Reference Figure 7 When the second connecting seat 60 is further inserted into the first connecting pipe 40 along the first direction F, the second valve seat 51 drives the fitting portion 81 to move in the first direction F, causing the fitting portion 81 to produce elastic deformation, while causing the fitting portion 81 to press against the first step portion 324, and driving the first valve core 32 to move in the first direction F, overcoming the elastic force of the first elastic member 33, so that the first valve core 32 is pushed open, and the first valve assembly 30 is also opened, so that the water purifier 100 is in the second state. At this time, the first valve assembly 30 and the second valve assembly 50 are both open, realizing the water flow between the liquid storage member 20 and the liquid storage 10. Figure 7 In the position, the second step portion 34 on the first valve core 32 presses against the periphery of the valve hole 311 of the first valve seat, so that the first valve seat 31 cannot continue to move in the first direction F.

[0125] It is understandable that, since the second surface 812 of the second valve seat 51 and the first surface 811 of the matching portion 81 are always in contact to form a seal, water will not leak out from between the second valve seat 51 and the matching portion 81. In this process, the outer wall of the second connecting seat 60 and the protrusion 821 are always in interference fit, which can prevent the second connecting seat 60 from withdrawing from the first connecting pipe 40 in the second direction S, and further prevent water from leaking out.

[0126] Reference Figure 8 When the liquid storage component 20 is pulled out, as the second valve seat 51 withdraws along the second direction S, the first elastic component 33 elastically resets, and the first valve core 32 gradually moves in the second direction S, first closing the first valve assembly 30. At this time, after the third surface 813 of the matching portion 81 is separated from the second step portion 34, the second valve seat 51 no longer applies a resisting force to the first valve core 32 through the matching portion 81.

[0127] In addition, the second connecting seat 60 continues to withdraw, and due to the lack of the pressure of the second valve seat 51, the matching portion 81 is also gradually elastically reset. During this process, the second elastic member 53 is also gradually elastically reset to close the second valve assembly 50. After the second valve assembly 50 is completely closed, the second connecting seat 60 continues to withdraw. During this process, the first surface 811 of the matching portion 81 and the second surface 812 of the second valve seat 51 are always in contact and sealed, and no water leakage occurs, so that the water purifier 100 is in a closed state. Figure 8 The third state is shown. Of course, in this process, since the outer diameter of the blocking member 321 is 8.0 mm and the inner diameter of the fitting portion 81 is 7.3 mm, the blocking member 321 is finally pressed against the first surface 811 of the fitting portion 81 during the resetting process of the fitting portion 81, thereby achieving the effect of no water leakage when the liquid storage member 20 is pulled out. At this time, the water on one side of the first valve assembly 30 is stored in the space defined by the sealing ring 80 and the first valve seat 31 and will not leak out. When the liquid storage member 20 continues to be pulled out, the fitting portion 81 and the second valve seat 51 are out of contact, and the state can be returned to as shown. Figure 3 Status shown.

[0128] Fig. 9 This is a schematic diagram of another structure of the first valve assembly in the water purifier provided in an embodiment of the present application, Fig.10 A schematic diagram of another structure of the second valve assembly in the water purifier provided in an embodiment of the present application.

[0129] Reference Fig. 9 and Fig.10 On the basis of the above embodiment, the structures of the first valve assembly 30 and the second valve assembly 50 are improved, and the remaining structures are similar to the above and will not be repeated here.

[0130] Specifically, the first valve core 32 includes a first valve core body 322 and a plurality of first ribs 323, and the plurality of first ribs 323 are spaced apart and arranged around the outer peripheral surface of the first valve core body 322. As mentioned above, when the matching portion 81 is configured as an annular member, the matching portion 81 is sleeved on the outer peripheral side of each first rib 323 and is gap-matched with the outer peripheral side of each first rib 323, and the inner diameter of the matching portion 81 is less than 7 mm.

[0131] With such arrangement, a sealed water film can be formed between the inner wall of the fitting portion 81 and the first valve core 32 (forming a cross section). With such arrangement, since the outer end of the sealing ring 80 is sealed with the inner wall of the first connecting tube 40, a sealed water film is formed between the fitting portion 81 at the inner end of the sealing ring 80 and the first valve core 32, so that no matter during the insertion or removal of the second connecting seat 60, after the second valve seat 51 and the fitting portion 81 are out of contact, the fitting portion 81 will form a seal with the first valve core 32 to prevent water in the first valve assembly 30 from leaking out, so that water leakage will never occur during the entire removal process of the second connecting seat 60.

[0132] In addition, continue to refer to Fig.10 The second valve seat 51 includes a second valve seat body 512 , which is configured with a second accommodating cavity 513 with openings at both ends, and the opening away from the inner cavity of the liquid storage member 20 forms a valve hole 511 of the second valve seat.

[0133] The second valve core 52 penetrates the second accommodating cavity 513 and cooperates with the cavity wall of the second accommodating cavity 513 to guide, and the liquid storage member blocking end 144 of the second valve core 52 blocks the valve hole 511 of the second valve seat when moving along the first direction F. An annular protrusion 1441 is provided on the outer side of the liquid storage member blocking end 144, and when the second valve core 52 moves to the point where the annular protrusion 1441 is located outside the hole wall of the valve hole 511 of the second valve seat, the second valve assembly 50 is opened.

[0134] In a specific implementation, the second valve seat body 512 may include two bases 145 and a plurality of connecting ribs 146 connected between the two bases 145. A second accommodating chamber 513 is defined between the bases 145 and the plurality of connecting ribs 146.

[0135] In the embodiment of the present application, the liquid storage container 10 is a communicating container, and the liquid storage member 20 is a clean water tank; or

[0136] The liquid reservoir 10 is a raw water tank seat, and the liquid storage member 20 is a raw water tank; or

[0137] The liquid reservoir 10 is a raw water tank, and the liquid storage member 20 is a raw water tank seat.

[0138] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0139] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A water purifier, characterized in that: It comprises a liquid reservoir (10), a first valve assembly (30) and a liquid storage element (20); The liquid reservoir (10) is provided with a first connecting pipe (40) communicating with the inner cavity of the liquid reservoir (10), and the liquid storage member (20) is provided with a second connecting seat (60) communicating with the inner cavity of the liquid storage member (20); The first valve assembly (30) comprises a first valve core (32) and a sealing ring (80) located in the first connecting tube (40), the first valve core (32) being used to correspondingly open or close the first valve assembly (30) when the second connecting seat (60) is inserted into or removed from the first connecting tube (40); One end of the sealing ring (80) is sealingly matched with the first connecting tube (40), and the other end is provided with a matching portion (81), and the matching portion (81) is movably mounted on the first valve core (32). The first connecting tube (40), the first valve core (32) and the sealing ring (80) together form a accommodating space (C), and the accommodating space (C) is connected with the inner cavity of the liquid reservoir (10) when the first valve assembly (30) is opened.

2. The water purifier according to claim 1, characterized in that: The first valve core (32) is provided with a blocking member (321), and the blocking member (321) is used to cooperate with the matching portion (81) to seal the accommodating space (C).

3. The water purifier according to claim 2, characterized in that: The water purifier further comprises a second valve assembly (50) arranged in the second connecting seat (60); The second valve assembly (50) comprises a driving member (501), and when the second connecting seat (60) is separated from the first connecting pipe (40), the blocking member (321) is blocked and matched with the matching portion (81); When the second connecting seat (60) is inserted into the first connecting tube (40), the driving member (501) abuts against the matching portion (81) and drives the matching portion (81) to disengage from the blocking member (321), so that the second connecting seat (60) is connected to the inner cavity of the liquid reservoir (10) through the accommodating space (C).

4. The water purifier according to claim 3, characterized in that: The sealing ring (80) is configured as an elastic member, and the matching portion (81) can move along a first direction under the drive of the driving member (501), or elastically reset along a second direction opposite to the first direction, so that the volume of the accommodating space (C) becomes smaller or larger, and the first direction (F) is the insertion direction of the second connecting seat (60) into the first connecting pipe (40).

5. The water purifier according to claim 3, characterized in that: The second valve assembly (50) comprises a second valve seat (51) and a second valve core (52) inserted into the second valve seat (51); the second valve seat (51) is connected to the second connecting seat (60); the second valve core (52) can move relative to the second connecting seat (60) in a second direction (S), or elastically reset in a first direction (F) opposite to the second direction (S), so as to open or close the valve hole (511) of the second valve seat; the second valve seat (51) forms the driving member (501); The second direction (S) is the direction in which the second connecting seat (60) is pulled out relative to the first connecting pipe (40).

6. The water purifier according to claim 5, characterized in that: The setting position of the second valve seat (51) corresponds to the setting position of the matching portion (81), and the setting position of the second valve core (52) corresponds to the setting position of the first valve core (32). The second connecting seat (60) is located in the first connecting pipe (40), and the state in which the second valve seat (51) just contacts the matching portion (81) is defined as an initial state. In the initial state, there is a gap between the first valve core (32) and the second valve core (52), or the first valve core (32) and the second valve core (52) are in contact with each other and do not transmit force to each other.

7. The water purifier according to claim 5 or 6, characterized in that: The matching portion (81) is loosely matched with the first valve core (32), and the blocking member (321) blocks the end surface of the matching portion (81) facing the second valve core (52).

8. The water purifier according to claim 7, characterized in that: The first valve core (32) includes a first valve core body (322) and a plurality of first ribs (323), wherein the plurality of first ribs (323) are spaced apart from and arranged around the outer peripheral surface of the first valve core body (322), and the blocking member (321) is disposed at the end of the first valve core body (322) facing away from the inner cavity of the liquid reservoir (10), and is connected to each of the first ribs (323).

9. The water purifier according to claim 8, characterized in that: The first valve core (32) comprises a first valve core body (322) and a plurality of first ribs (323), wherein the plurality of first ribs (323) are spaced apart and arranged around the outer circumference of the first valve core body (322); The matching portion (81) is constructed as an annular part and is sleeved on the outer peripheral side of each first rib (323) and is loosely matched with the outer peripheral side of each first rib (323). The inner diameter of the matching portion (81) is less than 7 mm.

10. The water purifier according to claim 8, characterized in that: The matching portion (81) and the blocking member (321) are both configured as annular members.

11. The water purifier according to claim 10, characterized in that: The blocking piece (321) is configured as a disc-shaped structure, and the outer diameter of the blocking piece (321) is greater than the inner diameter of the matching portion (81).

12. The water purifier according to claim 5 or 6, characterized in that: The sealing ring (80) includes an annular main body (82) and a constricted neck portion (83), wherein the constricted neck portion (83) and the matching portion (81) both surround the outer side of the first valve core (32), and one end of the constricted neck portion (83) is connected to the main body (82), and the other end is connected to the matching portion (81).

13. The water purifier according to claim 12, characterized in that: The neck portion (83) and the matching portion (81) are both located inside the main body portion (82); or The main body portion (82), the neck portion (83) and the matching portion (81) are arranged in sequence along the second direction (S).

14. The water purifier according to claim 12, characterized in that: The end of the main body (82) away from the neck portion (83) is provided with a first flange portion (84) folded outward, the outer peripheral surface of the main body (82) is pressed against the inner wall of the first connecting tube (40), and the first flange portion (84) is sleeved on the end of the first connecting tube (40) away from the liquid reservoir (10).

15. The water purifier according to claim 14, characterized in that: The water purifier (100) further comprises a housing (70), the liquid reservoir (10) being connected to the housing (70), the housing (70) being provided with a connecting pipe (71) for the first connecting pipe (40) to penetrate and be inserted therethrough, the end of the connecting pipe (71) being provided with a second flange portion (72) folded inwardly, the second flange portion (72) pressing the first flange portion (84) against the end of the first connecting pipe (40) facing away from the liquid reservoir (10).

16. The water purifier according to claim 12, characterized in that: The inner diameter of the matching portion (81) is smaller than or equal to the inner diameter of the second valve seat (51); Furthermore, the surfaces of the matching portion (81) and the second valve seat (51) that are opposite to each other have overlapping portions when projected onto a plane perpendicular to the first direction (F).

17. The water purifier according to claim 16, characterized in that The outer diameter of the second connecting seat (60) is smaller than the inner diameter of the main body (82); An annular protrusion (821) is provided inside the main body (82), and when the second connecting seat (60) is inserted into the first connecting pipe (40), the protrusion (821) presses against the outer wall of the second connecting seat (60).

18. The water purifier according to claim 6, characterized in that: The opposing surfaces of the matching portion (81) and the second valve seat (51) are respectively defined as a first surface (811) and a second surface (812); In the initial state, the end of the first valve core (32) facing away from the inner cavity of the liquid reservoir (10) protrudes from the first surface (811); The distance D1 between the end surface of the first valve core (32) facing the second valve core (52) and the first surface (811) and the distance D2 between the end surface of the second valve core (52) facing the first valve core (32) and the second surface (812) satisfy: D1<D2.

19. The water purifier according to claim 18, characterized in that An end surface of the matching portion (81) facing away from the first surface (811) is defined as a third surface (813); A partially raised first step portion (324) is provided between the two ends of the first valve core (32), and the first step portion (324) is used to block the moving path of the matching portion (81) along the first direction (F); The first step portion (324) comprises a first step surface (3241) extending radially along the first valve core (32), and the first step surface (3241) is arranged opposite to the third surface (813); The distance D3 between the end face of the first valve core (32) facing the second valve core (52) and the first step face (3241) and the thickness dimension D4 of the matching portion (81) along the first direction (F) satisfy: D3>D4.

20. The water purifier according to any one of claims 1 to 6, characterized in that: The first valve assembly (30) also includes a first valve seat (31), the first valve core (32) is inserted into the first valve seat (31), the first valve seat (31) is connected to the first connecting tube (40), the first valve core (32) can move relative to the first valve seat (31) along a first direction (F), or elastically reset along a second direction (S) opposite to the first direction (F) to open or close the valve hole (311) of the first valve seat, and the first direction (F) is the insertion direction of the second connecting seat (60) into the first connecting tube (40).

21. The water purifier according to claim 20, characterized in that The first valve seat (31) comprises a first valve seat body (312), the first valve seat body (312) being configured with a first accommodating cavity (313) with openings at both ends, the opening facing the inner cavity of the liquid reservoir (10) forming a valve hole (311) of the first valve seat; The first valve core (32) passes through the first accommodating cavity (313) and cooperates with the cavity wall of the first accommodating cavity (313) in a guiding manner, and the first blocking end (325) of the first valve core (32) enters the inner cavity of the liquid reservoir (10) through the valve hole (311) of the first valve seat.

22. The water purifier according to claim 20, characterized in that The first valve assembly (30) further comprises a first elastic member (33), wherein the first elastic member (33) is arranged between the inner wall of the first valve seat (31) and the first valve core (32) so as to always apply an elastic force toward the second direction (S) to the first valve core (32).

23. The water purifier according to claim 22, characterized in that The outer surface of the first valve core (32) is provided with at least one second step portion (34), and the two ends of the first elastic member (33) are respectively pressed between the inner wall of the first valve seat (31) and the at least one second step portion (34).

24. The water purifier according to claim 5 or 6, characterized in that: The second valve seat (51) comprises a second valve seat body (512), the second valve seat body (512) being configured with a second accommodating cavity (513) with openings at both ends, the opening facing away from the inner cavity of the liquid storage member (20) forming a valve hole (511) of the second valve seat; The second valve core (52) passes through the second accommodating cavity (513) and cooperates with the cavity wall of the second accommodating cavity (513) to guide, and the second blocking end (521) of the second valve core (52) blocks the valve hole (511) of the second valve seat when moving along the first direction (F).

25. The water purifier according to claim 24, characterized in that The edge of the valve hole (511) of the second valve seat is provided with a third flange portion (514) folded inwards, and the third flange portion (514) is used to cooperate with the second blocking end (521) of the second valve core (52) to stop.

26. The water purifier according to claim 24, characterized in that The second valve assembly (50) also includes a second elastic member (53), which is arranged between the inner wall of the second valve seat (51) and the second blocking end (521) of the second valve core (52) to always apply an elastic force toward the first direction (F) to the second valve core (52).

27. The water purifier according to claim 24, characterized in that The outer wall of the liquid storage component (20) is configured with a mounting cavity (91) that is in communication with the inner cavity of the liquid storage component (20), and the second connecting seat (60) is mounted in the mounting cavity (91).

28. The water purifier according to claim 1, characterized in that The liquid storage device (10) is used to communicate with a water storage tank.

29. The water purifier according to claim 1, characterized in that The liquid storage container (10) is a communicating container, and the liquid storage element (20) is a clean water tank; or The liquid storage device (10) is a raw water tank seat, and the liquid storage element (20) is a raw water tank; or The liquid storage device (10) is a raw water tank, and the liquid storage component (20) is a raw water tank seat.

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