Water purifier

Abstract

The present application relates to a water purifier. The water purifier comprises a liquid reservoir, a first valve assembly and a liquid storage member, wherein the liquid reservoir is provided with a first connecting pipe in communication with an inner cavity of the liquid reservoir, and the liquid storage member is provided with a second connecting base in communication with an inner cavity of the liquid storage member; the first valve assembly comprises a first valve core and a sealing ring which are located within the first connecting pipe, and the first valve core is configured to open or close the first valve assembly correspondingly when the second connecting base is inserted into or removed from the first connecting pipe; the sealing ring fits with the first connecting pipe in a sealing manner at one end, and is provided with a fitting portion at the other end, and the fitting portion is movably sleeved on the first valve core; and the first connecting pipe, the first valve core and the sealing ring together form an accommodating space which is in communication with the inner cavity of the liquid reservoir when the first valve assembly is opened. The water purifier of the present application can prevent water leakage during removal of the liquid storage member.

Description

water purifier Technical Field

[0001] The present application relates to the field of water purification technology, and in particular to a water purifier. Background Art

[0002] As people's living standards improve, more and more people are pursuing a high-quality life, and water purifiers are undoubtedly one of the best choices. The water purifier in the related art may include a liquid storage part and a liquid reservoir, and the water inlet of the liquid storage part 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 part, the water inlet of the liquid storage part and the water supply interface of the water reservoir often leak, resulting in a poor user experience. When the liquid reservoir or the liquid storage part is a raw water tank or a raw water tank seat, after the two are separated, there will also be water accumulation at the edge of the valve core of the raw water tank seat, or the raw water tank may drip.

[0003] Application Contents

[0004] 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.

[0005] In order to achieve the above-mentioned objectives, in a first aspect, the water purifier provided by the embodiment of the present application includes a liquid reservoir, a first valve assembly and a liquid storage member;

[0006] 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;

[0007] 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 open or close the first valve assembly accordingly when the second connecting seat is inserted into or removed from the first connecting pipe;

[0008] 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, which is connected to the inner cavity of the liquid reservoir when the first valve assembly is opened.

[0009] In one embodiment, a blocking piece is provided on the first valve core, and the blocking piece is used to block and cooperate with the matching portion.

[0010] In one embodiment, the water purifier further includes a second valve assembly disposed in the second connecting seat;

[0011] 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;

[0012] 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 reservoir through the accommodating space.

[0013] 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 the 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 pipe.

[0014] In one embodiment, the second valve assembly includes a second valve seat and a second valve core disposed in the second valve seat, the second valve seat being connected to the second connecting seat, the second valve core being capable of moving relative to the second connecting seat in a second direction, or elastically returning to a first direction opposite to the second direction, to open or close the valve hole of the second valve seat; the second valve seat forming a driving member;

[0015] The second direction is a direction in which the second connecting seat is pulled out relative to the first connecting tube.

[0016] In one embodiment, 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 the 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.

[0017] In one embodiment, the fitting portion is loosely fitted with the first valve core, and the blocking member blocks the end surface of the fitting portion facing the second valve core.

[0018] 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 and arranged around the outer peripheral surface of the first valve core body, and the sealing member is provided at the end of the first valve core body facing away from the inner cavity of the liquid reservoir and is connected to each first rib.

[0019] In one embodiment, the first valve core includes a first valve core body and a plurality of first ribs, and the plurality of first ribs are spaced apart and arranged around the outer peripheral surface of the first valve core body; the mating portion 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, and the inner diameter of the mating portion is less than 7 mm.

[0020] In one embodiment, the fitting 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 larger than the inner diameter of the fitting portion.

[0022] In one embodiment, the sealing ring includes an annular main body and a constricted neck portion, wherein the constricted neck portion and the matching portion both surround the outside of the first valve core, and one end of the constricted neck portion is connected to the main body portion, 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 portion; 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, and 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 fitting portion is smaller than or equal to the inner diameter of the second valve seat; and the opposing surfaces of the fitting portion and the second valve seat have overlapping projections on a plane perpendicular to the first direction.

[0028] In one embodiment, the outer diameter of the second connecting seat is smaller than the inner diameter of the main body; an annular protrusion is provided inside the main body, and when the second connecting seat is inserted into the first connecting tube, the protrusion presses against the outer wall of the second connecting seat.

[0029] In one embodiment, the opposing surfaces of the mating portion and the second valve seat are defined as a first surface and a second surface, respectively;

[0030] In an initial state, an end portion of the first valve core facing away from the inner cavity of the liquid reservoir protrudes from the first surface;

[0031] A distance D1 between the end surface of the first valve core facing the second valve core and the first surface and a distance D2 between the end surface of the second valve core facing the first valve core and the second surface satisfy: D1 < D2.

[0032] In one embodiment, an end surface of the mating portion facing away from the first surface is defined as a third surface;

[0033] 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 movement path of the matching portion along the first direction;

[0034] 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;

[0035] 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 D4 of the fitting portion along the first direction satisfy the following: D3>D4.

[0036] 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 the first connecting pipe. 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. The first direction is the insertion direction of the second connecting seat into the first connecting pipe.

[0037] In one embodiment, the first valve seat includes a first valve seat body, which is constructed 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; the first valve core passes through the first accommodating cavity and is guided and cooperated with the cavity wall of the first accommodating cavity, 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.

[0038] In one embodiment, the first valve assembly further includes a first elastic member, which is disposed between the 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.

[0039] In one embodiment, at least one second step portion is provided on the outer surface of the first valve core, and both 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.

[0040] In one embodiment, the second valve seat includes a second valve seat body, which is constructed with a second accommodating cavity with openings at both ends, and the opening facing away from the inner cavity of the liquid storage component forms a valve hole of the second valve seat; the second valve core passes through the second accommodating cavity, and cooperates with the cavity wall of the second accommodating cavity to guide, 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.

[0041] In one embodiment, the edge of the valve hole of the second valve seat is provided with a third flange portion folded inwardly, and the third flange portion is used to cooperate with the second blocking end stop of the second valve core.

[0042] In one embodiment, the second valve assembly further includes a second elastic member, which is disposed between the inner wall of the second valve seat and the 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.

[0043] In one embodiment, the outer wall of the liquid storage component is configured with a mounting cavity that is in communication with the inner cavity of the liquid storage component, and the second connecting seat is installed in the mounting cavity.

[0044] In one embodiment, the liquid reservoir is a communicating vessel and the liquid storage member is a clean water tank; or, the liquid reservoir is a raw water tank seat and the liquid storage member is a raw water tank; or, the liquid reservoir is a raw water tank and the liquid storage member is a raw water tank seat.

[0045] In one embodiment, the liquid reservoir is a communicating vessel, and the liquid storage component is a clean water tank; the water purifier also includes: a filter and a water pump, the filter is connected to the inner cavity of the communicating vessel, and the water pump draws water from the clean water tank through the communicating vessel; the water purifier also includes: a liquid level box, the communicating vessel is connected to the liquid level box, and when the water pump pumps water, the water level in the liquid level box and the clean water tank both drops.

[0046] In one embodiment, the water purifier further includes: a filter; the liquid reservoir is a raw water tank seat, the liquid storage member is a raw water tank, and the raw water tank seat is used to provide raw water in the raw water tank to the filter.

[0047] Beneficial effects of the above water purifier:

[0048] 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 sleeved 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 second connecting seat is not inserted into the first connecting tube, 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.

[0049] In a second aspect, the present application provides a water purifier, comprising a liquid reservoir, a liquid storage member, a first valve assembly and a second valve assembly;

[0050] The liquid reservoir is provided with a first connecting pipe communicating with the inner cavity of the liquid reservoir; the liquid storage element is provided with a second connecting seat communicating with the inner cavity of the liquid storage element;

[0051] The first valve assembly includes a sealing ring and a first valve core that reciprocates along the length direction of the first connecting pipe to open and close the inner cavity of the liquid reservoir. The second valve assembly includes a second valve seat and a second valve core disposed on the second valve seat. The second valve core reciprocates along the length direction of the second connecting seat to open and close the inner cavity of the liquid reservoir.

[0052] One end of the sealing ring is sealed and fitted with the first connecting pipe, and the other end is provided with a fitting portion, which is movably sleeved on the outer periphery of the first valve core;

[0053] 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 pipe, and the state in which the second valve seat just contacts the matching part is defined as the 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.

[0054] 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 pipe. 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; the first direction is the direction in which the second connecting seat is inserted into the first connecting pipe, and is parallel to the length direction of the first connecting pipe.

[0055] In one embodiment, the second valve core can move relative to the second valve seat in the second direction, or elastically return to the first direction, so as to open or close the valve hole of the second valve seat.

[0056] In one embodiment, the fitting portion is loosely fitted with the first valve core.

[0057] 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 and arranged around the outer peripheral surface of the first valve core body, the mating portion 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, and the inner diameter of the mating portion is less than 7 mm.

[0058] In one embodiment, the first connecting pipe, the first valve core and the sealing ring together form an accommodating space;

[0059] The sealing ring is configured as an elastic member, and the matching portion can move along the first direction or elastically reset along the second direction under the drive of the second valve seat, so as to reduce or increase the volume of the accommodating space.

[0060] In one embodiment, the sealing ring includes an annular main body and a constricted neck portion, wherein the constricted neck portion and the matching portion both surround the outside of the first valve core, and one end of the constricted neck portion is connected to the main body portion, and the other end is connected to the matching portion.

[0061] In one embodiment, the neck portion and the fitting portion are both located inside the main body portion; or

[0062] The main body portion, the neck portion and the matching portion are arranged in sequence along the second direction.

[0063] 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.

[0064] In one embodiment, the water purifier further comprises a shell, an end portion of the shell is provided with a second flange portion folded inward, and the second flange portion presses the first flange portion against the end portion of the first connecting pipe facing away from the liquid reservoir.

[0065] In one embodiment, the inner diameter of the fitting portion is smaller than or equal to the inner diameter of the second valve seat; and the opposing surfaces of the fitting portion and the second valve seat have overlapping projections on a plane perpendicular to the first direction.

[0066] In one embodiment, the outer diameter of the second connecting seat is smaller than the inner diameter of the main body; an annular protrusion is provided on the interior of the main body, and when the second connecting seat is inserted into the first connecting tube, the protrusion presses against the outer wall of the second connecting seat.

[0067] In one embodiment, the opposing surfaces of the fitting portion and the second valve seat are defined as a first surface and a second surface, respectively; 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;

[0068] A distance D1 between the end surface of the first valve core facing the second valve core and the first surface and a distance D2 between the end surface of the second valve core facing the first valve core and the second surface satisfy: D1 < D2.

[0069] In one embodiment, an end surface of the mating portion facing away from the first surface is defined as a third surface;

[0070] A locally 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 mating portion along the first direction; the first step portion includes a first step surface extending radially along the first valve core, and the first step surface is arranged opposite to the third surface; the distance D3 between the end face of the first valve core facing the second valve core and the first step surface and the thickness dimension D4 of the mating portion along the first direction satisfy: D3>D4.

[0071] 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 two ends open, and the opening facing the inner cavity of the liquid reservoir forms a valve hole of the first valve seat;

[0072] The first valve core passes through 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.

[0073] In one embodiment, the first valve assembly further includes a first elastic member, which is disposed between the 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.

[0074] In one embodiment, at least one second step portion is provided on the outer surface of the first valve core, and both 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.

[0075] In one embodiment, the second valve seat includes a second valve seat body, the second valve seat body is configured with a second accommodating cavity with two ends open, and the opening facing away from the inner cavity of the liquid storage member forms a valve hole of the second valve seat;

[0076] The second valve core passes through the second accommodating cavity and cooperates with the cavity wall of the second accommodating cavity for guidance. The second blocking end of the second valve core blocks the valve hole of the second valve seat when moving along the first direction.

[0077] 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 the second blocking end of the second valve core, and is configured to always apply an elastic force toward the first direction to the second valve core;

[0078] The first valve assembly also includes a first elastic member, which is arranged between the inner wall of the first valve seat and the first valve core to always apply an elastic force toward the second direction to the first valve core; the elastic coefficient of the second elastic member is smaller than the elastic coefficient of the first elastic member.

[0079] In one embodiment, the outer wall of the liquid storage component is configured with a mounting cavity that is in communication with the inner cavity of the liquid storage component, and the second connecting seat is installed in the mounting cavity.

[0080] In one embodiment, the liquid reservoir is connected to the atmosphere, and a water level sensor for detecting the water level is provided in the liquid reservoir.

[0081] In one embodiment, the first connecting pipe, the first valve core and the sealing ring together form an accommodating space, and the accommodating space is communicated with the inner cavity of the liquid reservoir when the first valve assembly is opened.

[0082] In one embodiment, 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.

[0083] In one embodiment, the liquid reservoir is a liquid level box and the liquid storage component is a clean water tank; or, the liquid reservoir is a raw water tank seat and the liquid storage component is a raw water tank; or, the liquid reservoir is a raw water tank and the liquid storage component is a raw water tank seat.

[0084] The beneficial effects of the above-mentioned water purifier are: one end of the sealing ring is sealed and fitted with the first connecting pipe, and the other end is provided with a fitting part, which is movably sleeved on the outer periphery of the first valve core, and the fitting part can move relative to the first valve core along the length direction of the first connecting pipe; the setting position of the second valve seat corresponds to the setting position of the fitting part, and the second connecting seat is inserted into the first connecting pipe. When the second valve seat just contacts the fitting part, 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. With such arrangement, since one end of the sealing ring is sealed with the first connecting tube, when the second connecting seat is inserted into the first connecting tube, the second valve seat contacts the matching part to form a seal as soon as it contacts the matching part. At this time, there is a gap between the first valve core and the second valve core, and the two are not in contact, or the first valve core and the second valve core contact each other and do not transmit force to each other. In this way, the first valve assembly and the second valve assembly are both in a closed state. As the second connecting seat is inserted deeper, the matching part is pushed by the second valve seat to move in the insertion direction relative to the first valve core and undergoes elastic deformation, so that the second valve seat and the matching part are pressed tightly and always maintain a sealed state. During this process, no matter whether the first valve assembly and the second valve assembly are opened or not, the water in the first valve assembly and the second valve assembly cannot leak from the interface between the matching part and the second valve seat. Therefore, no water leakage will occur during the entire insertion process of the second connecting seat.

[0085] In a third aspect, the present application provides a water purifier, comprising:

[0086] The liquid reservoir comprises: a first connecting pipe, a first valve assembly, and a sealing ring; the first valve assembly is mounted on the first connecting pipe; the first valve core comprises a first blocking end and an opposite end disposed opposite the first blocking end; one end of the sealing ring is sealingly engaged with the first connecting pipe, and the other end comprises a mating portion movably sleeved on an outer periphery of the opposite end;

[0087] a liquid storage component, detachably mounted on the liquid reservoir;

[0088] Among them, the first valve core, the first connecting tube and the sealing ring together form an accommodating space; when the liquid storage component is not installed on the liquid reservoir, the matching part is located at the opposite end, the first valve assembly is closed, the first blocking end is closed, and the inner cavity of the liquid reservoir is disconnected from the accommodating space.

[0089] In one embodiment, when the liquid storage member is installed on the liquid reservoir, the mating portion is located between the opposite end and the first blocking end, the first valve assembly is opened, the first blocking end is opened, and the inner cavity of the liquid reservoir is connected to the accommodating space.

[0090] In one embodiment, the liquid storage member is provided with a second connecting seat in communication with the inner cavity of the liquid storage member, and the first valve core is used to correspondingly open or close the first valve assembly when the first connecting pipe is inserted into or removed from the second connecting seat; the water purifier further includes a second valve assembly disposed in the second connecting seat;

[0091] The second valve assembly includes a driving member. 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 disengage from the opposite end, so that the second connecting seat is connected to the inner cavity of the liquid reservoir through the accommodating space.

[0092] 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 the 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 pipe.

[0093] In one embodiment, the second valve assembly includes a second valve seat and a second valve core disposed in the second valve seat, the second valve seat being connected to the second connecting seat, the second valve core being capable of moving relative to the second connecting seat in a second direction, or elastically returning to a first direction opposite to the second direction, to open or close the valve hole of the second valve seat; the second valve seat forming a driving member;

[0094] The second direction is a direction in which the second connecting seat is pulled out relative to the first connecting tube.

[0095] In one embodiment, 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 the 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.

[0096] In one embodiment, a blocking member is provided on the opposite end of the first valve core, and the blocking member is used to block and cooperate with the matching portion;

[0097] When the liquid storage component is not installed on the liquid reservoir, the second connecting seat is separated from the first connecting tube, and the blocking component is in blocking engagement with the matching portion.

[0098] In one embodiment, the fitting portion is loosely fitted with the first valve core, and the blocking member blocks the end surface of the fitting portion facing the second valve core.

[0099] 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 and arranged around the outer peripheral surface of the first valve core body, and the sealing member is provided at the end of the first valve core body facing away from the inner cavity of the liquid reservoir and is connected to each first rib.

[0100] In one embodiment, the fitting portion and the blocking member are both configured as annular members.

[0101] In one embodiment, the blocking member is configured as a disc-shaped structure, and the outer diameter of the blocking member is larger than the inner diameter of the matching portion, so as to seal the accommodating space.

[0102] In one embodiment, the first valve core includes a first valve core body and a plurality of first ribs, and the plurality of first ribs are spaced apart and arranged around the outer peripheral surface of the first valve core body; the mating portion 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, and the inner diameter of the mating portion is less than 7 mm.

[0103] In one embodiment, the sealing ring includes an annular main body and a constricted neck portion, wherein the constricted neck portion and the matching portion both surround the outside of the first valve core, and one end of the constricted neck portion is connected to the main body portion, and the other end is connected to the matching portion.

[0104] In one embodiment, the neck portion and the fitting portion are both located inside the main body; or

[0105] The main body portion, the neck portion and the matching portion are arranged in sequence along the second direction.

[0106] 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.

[0107] 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, and 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.

[0108] In one embodiment, the inner diameter of the fitting portion is smaller than or equal to the inner diameter of the second valve seat; and the opposing surfaces of the fitting portion and the second valve seat have overlapping projections on a plane perpendicular to the first direction.

[0109] In one embodiment, an annular protrusion is provided inside the main body, and when the second connecting seat is inserted into the first connecting tube, the protrusion is pressed against the outer wall of the second connecting seat; when the second connecting seat is inserted into the first connecting tube, at least a portion of the second connecting seat is located between the mating portion and the main body.

[0110] In one embodiment, the opposing surfaces of the fitting portion and the second valve seat are defined as a first surface and a second surface, respectively; 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;

[0111] A distance D1 between the end surface of the first valve core facing the second valve core and the first surface and a distance D2 between the end surface of the second valve core facing the first valve core and the second surface satisfy: D1 < D2.

[0112] In one embodiment, an end surface of the mating portion facing away from the first surface is defined as a third surface; 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 movement path of the mating portion along the first direction;

[0113] 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;

[0114] 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 D4 of the fitting portion along the first direction satisfy the following: D3>D4.

[0115] 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 pipe. 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 the insertion direction of the second connecting seat into the first connecting pipe.

[0116] In one embodiment, the first valve seat includes a first valve seat body, which is constructed 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; the first valve core passes through the first accommodating cavity and is guided and cooperated with the cavity wall of the first accommodating cavity, 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.

[0117] In one embodiment, the first valve assembly further includes a first elastic member, which is disposed between the 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.

[0118] In one embodiment, at least one second step portion is provided on the outer surface of the first valve core, and both 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.

[0119] In one embodiment, the second valve seat includes a second valve seat body, which is constructed with a second accommodating cavity with openings at both ends, and the opening facing away from the inner cavity of the liquid storage component forms a valve hole of the second valve seat; the second valve core passes through the second accommodating cavity and cooperates with the cavity wall of the second accommodating cavity to guide, 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.

[0120] In one embodiment, the edge of the valve hole of the second valve seat is provided with a third flange portion folded inwardly, and the third flange portion is used to cooperate with the second blocking end stop of the second valve core.

[0121] In one embodiment, the second valve assembly further includes a second elastic member disposed between an inner wall of the second valve seat and the second blocking end of the second valve core, configured to consistently apply an elastic force toward the second valve core in the first direction. Preferably, the elastic coefficient of the second elastic member is less than the elastic coefficient of the first elastic member.

[0122] In one embodiment, the outer wall of the liquid storage component is configured with a mounting cavity that is in communication with the inner cavity of the liquid storage component, and the second connecting seat is installed in the mounting cavity.

[0123] The beneficial effects of the above-mentioned water purifier are as follows: one end of the sealing ring is sealed and fitted with the first connecting pipe, and the other end is provided with a fitting part, which is movably mounted on the first valve core. The first connecting pipe, the first valve core and the sealing ring together form an accommodating space. In this way, when the second connecting seat is not inserted into the first connecting pipe, 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 pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0124] FIG1 is a schematic structural diagram of the cooperation between the liquid reservoir and the liquid storage element in the water purifier provided in an embodiment of the present application;

[0125] FIG2 is a schematic cross-sectional view of a water purifier provided in an embodiment of the present application;

[0126] FIG3 is a partial enlarged view of point A in FIG2 ;

[0127] FIG4a is a schematic structural diagram of a first valve core in a water purifier provided in an embodiment of the present application;

[0128] FIG4 b is a schematic structural diagram of a second valve seat in a water purifier provided in an embodiment of the present application;

[0129] FIG5 is a schematic structural diagram of a water purifier provided in an embodiment of the present application in an initial state;

[0130] FIG6 is a schematic structural diagram of a water purifier provided in an embodiment of the present application in a first state;

[0131] FIG7 is a schematic structural diagram of the water purifier provided in an embodiment of the present application in a second state;

[0132] FIG8 is a schematic structural diagram of the water purifier provided in an embodiment of the present application in a third state;

[0133] FIG9 is a schematic diagram of another structure of the first valve assembly in the water purifier provided in an embodiment of the present application;

[0134] FIG10 is a schematic diagram of another structure of the second valve assembly in the water purifier provided in an embodiment of the present application;

[0135] FIG11 is a schematic structural diagram of a water purifier provided in an embodiment of the present application;

[0136] FIG12 is another structural schematic diagram of the water purifier provided in an embodiment of the present application;

[0137] FIG13 is a schematic structural diagram of the cooperation between the liquid reservoir and the liquid storage element in a water purifier provided by another embodiment of the present application;

[0138] FIG14 is a schematic diagram of a partial structure of a water purifier provided in another embodiment of the present application;

[0139] FIG15 is a schematic structural diagram of a liquid storage element provided in another embodiment of the present application;

[0140] FIG16 is a schematic cross-sectional view of a water purifier provided in another embodiment of the present application;

[0141] FIG17 is a schematic structural diagram of a water purifier in an initial state provided by another embodiment of the present application;

[0142] FIG18 is a schematic structural diagram of a water purifier in a second state provided by another embodiment of the present application;

[0143] FIG19 is a schematic structural diagram of a water purifier in a third state provided by another embodiment of the present application. DETAILED DESCRIPTION

[0144] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0145] The water purifier according to the embodiment of the present application is described below with reference to the accompanying drawings. Figure 1 is a schematic structural diagram of the cooperation between the liquid reservoir and the liquid storage member in the water purifier according to the embodiment of the present application; Figure 2 is a schematic cross-sectional structural diagram of the water purifier according to the embodiment of the present application; Figure 3 is a partial enlarged view of point A in Figure 2; Figure 4a is a schematic structural diagram of the first valve core in the water purifier according to the embodiment of the present application; Figure 4b is a schematic structural diagram of the second valve seat in the water purifier according to the embodiment of the present application. Figure 5 is a schematic structural diagram of the water purifier according to the embodiment of the present application in its initial state. Figure 13 is a schematic structural diagram of the cooperation between the liquid reservoir and the liquid storage member in the water purifier according to another embodiment of the present application; Figure 14 is a schematic partial structural diagram of the water purifier according to another embodiment of the present application; Figure 15 is a schematic structural diagram of the liquid storage member according to another embodiment of the present application; Figure 16 is a schematic cross-sectional structural diagram of the water purifier according to another embodiment of the present application. Referring to Figures 1, 2, 3, 13-16, an embodiment of the present application provides a water purifier 100, comprising a liquid reservoir 10, a liquid storage member 20, and a first valve assembly 30.

[0146] The liquid reservoir 10 is provided with a first connecting tube 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 includes a first valve core 32 and a sealing ring 80 located within the first connecting tube 40 . The first valve core 32 is used to open or close the first valve assembly 30 accordingly when the second connecting seat 60 is inserted into or removed from the first connecting tube 40 . The sealing ring 80 has one end that seals with the first connecting tube 40 and a mating portion 81 at the other end that movably fits over the first valve core 32 . The first connecting tube 40 , the first valve core 32 , and the sealing ring 80 collectively form a receiving space C, which communicates with the inner cavity Q of the liquid reservoir 10 when the first valve assembly 30 is open. The inner cavity Q is a cavity used for passing, temporarily storing, or storing water.

[0147] 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.

[0148] 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 dripping. In addition, there is no possibility of dust and other debris entering the liquid reservoir 10.

[0149] 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 tube 40 , water can be better prevented from leaking from the sealed accommodating space C.

[0150] Furthermore, the water purifier also includes a second valve assembly 50 disposed in the second connecting seat. The second valve assembly 50 includes a driving member 501. When the second connecting seat 60 is detached from the first connecting tube 40, the blocking member 321 and the matching portion 81 are blocked and matched. 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 detach 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. In this way, when the second connecting seat 60 is inserted into the first connecting tube 40, the water in the liquid reservoir 10 can flow into the first connecting tube 40 through the accommodating space C.

[0151] Furthermore, the sealing ring 80 is configured as an elastic member, and the mating portion 81 can be driven by the driver 501 to move in a first direction or elastically return in a second direction opposite the first direction, thereby reducing or increasing the volume of the accommodating space C. The first direction F represents the insertion direction of the second connecting seat 60 into the first connecting tube 40. This arrangement allows the second connecting seat 60 to squeeze out any stale water in the accommodating space C when inserted into the first connecting tube 40, preventing bacterial growth there during extended use. When the second connecting seat 60 is fully inserted into the first connecting tube 40, the driver 501 pushes the mating portion 81 to its closest position to the liquid reservoir 10, at which point the volume of the accommodating space C is minimized.

[0152] In the embodiment of the present application, the second valve assembly 50 includes a second valve seat 51 and a second valve core 52 disposed within 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 return to a 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 element. The second direction S represents the direction in which the second connecting seat 60 is removed from the first connecting tube 40. The first direction represents the direction in which the second connecting seat 60 is inserted into the first connecting tube 40. Specifically, the second valve core 52 can move relative to the second connecting seat 60 in the second direction S to open the valve hole 511 of the second valve seat. The second valve core 52 can elastically return to the first direction F relative to the second connecting seat 60 to close the valve hole 511 of the second valve seat.

[0153] Similarly, the first valve assembly 30 further includes a first valve seat 31, a first valve core 32 disposed within the first valve seat 31, and the first valve seat 31 is connected to the first connecting pipe 40. The first valve core 32 can move relative to the first valve seat 31 in a first direction F, or elastically reset in a second direction S opposite to the first direction F, 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 in the first direction F to open the valve hole 311 of the first valve seat, and can move relative to the first valve seat 31 in the second direction S to close the valve hole 311 of the first valve seat.

[0154] In this embodiment of the present application, the liquid reservoir 10 can be used to communicate with a water tank (not shown), thereby allowing the liquid storage member 20 to communicate with the water tank through the liquid reservoir. The second connecting base 60 can be constructed as a tubular member. In addition, one end of the sealing ring 80 seals against the inner wall of the first connecting tube 40, and the mating portion 81 and the sealing member 321 can both be configured as annular members.

[0155] 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 .

[0156] In the embodiment of the present application, the setting position of the second valve seat 51 corresponds to the setting position of the matching part 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 part 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.

[0157] It is understood that the liquid reservoir 10 is provided with a first connecting tube 40 communicating with the inner cavity of the liquid reservoir 10, and the liquid reservoir 20 is provided with a second connecting seat 60 communicating with the inner cavity of the liquid reservoir 20. With this arrangement, by inserting the second connecting seat 60 into the first connecting tube 40 and simultaneously opening the first valve assembly 30 and the second valve assembly 50, the liquid reservoir 20 can be connected to the water tank through the liquid reservoir 10, thereby achieving communication between the water tank and the liquid reservoir 20. The above description uses the water tank as an example of a water source, but those skilled in the art will understand that the water source can also be tap water.

[0158] 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 inserted into the first connecting pipe 40, the first valve assembly 30 and the second valve assembly 50 interact with each other, enabling the second valve core 52 and the first valve core 32 to 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.

[0159] 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 arrangement, 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.

[0160] Furthermore, by providing a blocking member 321 for sealing the end surface of the mating portion 81 facing the second valve core 52, the mating portion 81 can elastically deform relative to the first valve core 32 in a first direction F for movement or elastically reset in a second direction S. The second valve seat 51 is positioned corresponding to the mating portion 81. When the second connecting seat 60 is inserted into the first connecting tube 40 and the second valve seat 51 first contacts the mating portion 81, a gap exists between the first valve core 32 and the second valve core 52.

[0161] With such arrangement, since the outer end of the sealing ring 80 is sealedly matched 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 the two are not in contact, 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 undergoes elastic deformation, so that the second valve seat 51 and the matching portion 81 are tightly pressed and always maintain a sealed state. During this process, regardless of 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 intersection 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.

[0162] 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 on the fitting portion 81 gradually decreases until the second valve seat 51 leaves the fitting portion 81. The second valve seat 51 is in the elastic reset process, so it is always pressed against the fitting portion 81, maintaining the sealing fitting relationship between the two. In this process, regardless of 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 intersection 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 disengaged and the sealing state will be released. This is compared with the situation in the related art where water always flows out during the closing process of the first valve assembly 30 and the second valve assembly 50, which avoids water leakage during the pull-out process, and also greatly reduces the amount of water leakage during the entire pull-out process of the second connecting seat 60.

[0163] Furthermore, the outer end of the sealing ring 80 is sealed with the inner wall of the first connecting tube 40, and the fitting portion 81 of 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 fitting portion 81 facing the second valve core 52. In this way, whether 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 end face of the fitting portion 81 will cooperate with the end face of the sealing 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, no water leakage will occur during the entire removal process of the second connecting seat 60.

[0164] Referring to Figure 4a, the 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 spaced apart and arranged around the outer circumference of the first valve core body 322. A 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. As such, when the end surface of the blocking member 321 contacts and engages with the end surface of the mating portion 81, the gap between the first valve core 32 and the mating portion 81 is completely blocked in the circumferential direction. When the mating portion 81 is pressed by the second valve seat 51 and moves in the first direction F, it can quickly disengage from the blocking member 321. The clearance between the mating portion 81 and the first ribs 323 ensures that after the mating portion 81 disengages from the blocking member 321, the passage between the mating portion 81 and the first valve core 32 remains unobstructed, facilitating the flow of water from the liquid reservoir 10 into and out of 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 .

[0165] 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.

[0166] Continuing with reference to FIG3 , the sealing ring 80 includes an annular main body 82 and a constricted portion 83. The constricted portion 83 and the mating portion 81 both surround the outside of the first valve core 32. One end of the constricted portion 83 is connected to the main body 82, and the other end is connected to the mating portion 81. The constricted portion 83 can be configured as an elastic member. With this configuration, when the mating portion 81 is subjected to an external force, the constricted portion 83 is an elastic member, allowing the mating portion 81 to move in a first direction F or elastically return to a second direction S relative to the first valve core 32. The sealing ring can be made of a material with elastic resilience, such as rubber or silicone.

[0167] 3 and 17 , the constricted portion 83 and the matching portion 81 are both located inside the main body 82. Alternatively, the main body 82, the constricted portion 83 and the matching portion 81 may be arranged in sequence along the second direction S.

[0168] Furthermore, the end of the main body 82 facing away from the constricted portion 83 is provided with a first flange portion 84 that is folded outward. The outer circumference of the main body 82 presses against the inner wall of the first connecting tube 40, and the first flange portion 84 is sleeved over the end of the first connecting tube 40 facing away from the liquid reservoir 10. This creates a good seal 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.

[0169] Further, referring to Figures 1 and 2, 3, 13, 16, and 17, the water purifier 100 further includes a housing 70, the liquid reservoir 10 is connected to the housing 70, and 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 inwardly, 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 manner, 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.

[0170] It should be noted that the first valve assembly 30 includes the first valve core 32 and the sealing ring 80 located within the first connecting tube 40. This means that at least a portion of the first valve core 32 and the sealing ring 80 are located within the first connecting tube 40, and does not necessarily mean that the first valve core 32 and the sealing ring 80 are completely located within the first valve assembly 30. For example, in FIG7 , the sealing ring 80 also has a portion located outside the first connecting tube 40.

[0171] 3 and 17 , in the embodiment of the present application, the inner diameter of the mating portion 81 is smaller than or equal to the inner diameter of the second valve seat 51 , and the opposing surfaces of the mating portion 81 and the second valve seat 51 have an overlapping portion when projected onto a plane perpendicular to the first direction F. This arrangement facilitates smooth movement of the second valve seat 51 in the first direction F against the mating portion 81 .

[0172] Furthermore, the outer diameter of the second connection base 60 is smaller than the inner diameter of the main body 82. An annular protrusion 821 is provided within the main body 82. When the second connection base 60 is inserted into the first connection tube 40, the protrusion 821 presses against the outer wall of the second connection base 60. This arrangement also facilitates smooth insertion of the second connection base 60 into the first connection tube 40. The press of the protrusion 821 against the outer wall of the second connection base 60 not only makes the insertion operation more comfortable but also facilitates the seal between the second connection base 60 and the sealing ring 80, preventing the second connection base 60 from being removed from the first connection tube 40.

[0173] In the embodiment of the present application, referring to FIG. 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.

[0174] 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. 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 the following relationship: D1 < D2. This arrangement ensures that when the first surface 811 and the second surface 812 contact, there is still a gap between the first valve core 32 and the second valve core 52. This ensures that when the second connecting seat 60 is inserted, the mating portion 81 and the second valve seat 51 first contact, forming a seal before the first valve assembly 30 and the second valve assembly 50 are opened. At the same time, when the second connecting seat 60 is removed, the mating portion 81 and the second valve seat 51 are separated after the first valve assembly 30 and the second valve assembly 50 are both closed.

[0175] Furthermore, the end surface of the fitting portion 81 facing away from the first surface 811 is defined as a third surface 813. In conjunction with Figures 4 and 5 , a partially raised first step portion 324 is provided between the two ends of the first valve core 32. The first step portion 324 blocks the movement path of the fitting portion 81 toward the first direction F. The first step portion 324 includes a first step surface 3241 extending radially along the first valve core 32. 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 fitting portion 81 along the first direction F satisfy the following conditions: D3>D4. In this way, 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 through the matching portion 81 against the first step portion 324, pushing the first valve core 32 to move in the first direction F to open the valve hole 311 of the first valve seat.

[0176] Furthermore, the first valve seat 31 includes a first valve seat body 312, which is configured with a first accommodating cavity 313 open at both ends. The opening facing the inner cavity of the liquid reservoir 10 forms the valve hole 311 of the first valve seat. The first valve core 32 extends through the first accommodating cavity 313 and is guided by the cavity wall of the first accommodating cavity 313. 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 to form a sealing engagement with the valve hole 311 of the first valve seat when in contact with the valve hole 311 of the first valve seat.

[0177] 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 , and is configured to constantly apply an elastic force to the first valve core 32 in the second direction S. In this way, elastic resetting of the first valve core 32 can be achieved.

[0178] Furthermore, referring to Figures 3 and 4a , at least one second step 34 is formed on the outer surface of the first valve core 32, and both 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 34. This allows the first elastic member 33 to be easily positioned by being sleeved on the first valve core 32 with both ends respectively abutting between the inner wall of the first valve seat 31 and the second step 34.

[0179] Further, in combination with Figures 3 and 4b, the second valve seat 51 includes a second valve seat body 512, and the second valve seat body 512 is constructed with a second accommodating cavity 513 with openings at both ends, and the opening away from the inner cavity of the liquid storage part 20, that is, the opening toward the first valve core 31, forms the valve hole 511 of the second valve seat.

[0180] 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. In FIG3 , the cross section is taken between two adjacent connecting ribs 5122, and therefore the connecting ribs 5122 are not shown in FIG3 .

[0181] The second valve core 52 passes through the second accommodating cavity 513 and is guided by the cavity wall of the second accommodating cavity 513 . 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.

[0182] A third flange portion 514 folded inward 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.

[0183] 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, and is configured to constantly apply an elastic force to the second valve core 52 in the first direction F. In this way, elastic reset of the second valve core 52 can be achieved.

[0184] In addition, regarding the installation of the second connecting base 60, referring to FIG. 2 , the outer wall of the liquid storage member 20 is configured with a mounting cavity 91 that communicates with the inner cavity of the liquid storage member 20, and the second connecting base 60 is installed in the mounting cavity 91. Of course, an escape cavity 92 is also provided outside the mounting cavity 91 to facilitate accommodating the first connecting tube 40.

[0185] Figure 6 is a schematic diagram of the structure of the water purifier provided in an embodiment of the present application in a first state, Figure 7 is a schematic diagram of the structure of the water purifier provided in an embodiment of the present application in a second state, and Figure 8 is a schematic diagram of the structure of the water purifier provided in an embodiment of the present application in a third state. Figure 17 is a schematic diagram of the structure of the water purifier provided in another embodiment of the present application in an initial state; Figure 18 is a schematic diagram of the structure of the water purifier provided in another embodiment of the present application in a second state; and Figure 19 is a schematic diagram of the structure of the water purifier provided in another embodiment of the present application in a third state.

[0186] The following describes the plugging and unplugging process of the liquid storage member 20 and the liquid reservoir 10 in the water purifier 100 according to an embodiment of the present application with reference to FIG3 , FIG5 , FIG6 , FIG7 , and FIG8 .

[0187] Figure 3 shows the second connecting socket 60 just inserted into the first connecting pipe 40. At this point, both the first valve assembly 30 and the second valve assembly 50 are in a closed state. The sealing member 321 seals against the end surface of the mating portion 81, preventing water leakage from either the first or second valve assembly 30, 50 sides.

[0188] Figure 5 (Figure 17) shows the initial state, in which the first valve assembly 30 and the second valve assembly 50 are still closed. The second surface 812 of the second valve seat 51 has just contacted the first surface 811 of the mating portion 81. 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 and the first surface 811 of the mating portion 81 are in contact, forming a seal. The sealing member 321 seals the end surface of the mating portion 81, preventing water from leaking out of the first valve assembly 30 and the second valve assembly 50.

[0189] 6 (FIG. 18), when the second connecting seat 60 is further inserted into the first connecting tube 40 along the first direction F, the first valve core 32 and the second valve core 52 come into 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, causing the second valve assembly 50 to open, placing the water purifier 100 in the first state. During this process, since the second surface 812 of the second valve seat 51 and the first surface 811 of the mating portion 81 are always in contact with each other to form a seal, water does not leak from between the second valve seat 51 and the mating portion 81.

[0190] Referring to Figure 7 (Figure 19), 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 pressing the fitting portion 81 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, so that the first valve assembly 30 is also opened, and 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 water circulation between the liquid storage member 20 and the liquid reservoir 10. In the position of Figure 7, 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.

[0191] It is understood that because the second surface 812 of the second valve seat 51 and the first surface 811 of the mating portion 81 are in constant contact and form a seal, water cannot leak from between the second valve seat 51 and the mating portion 81. During this process, the outer wall of the second connecting seat 60 and the protrusion 821 are always in an interference fit, which prevents the second connecting seat 60 from withdrawing from the first connecting pipe 40 in the second direction S, further preventing water from leaking.

[0192] Referring to 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.

[0193] In addition, the second connecting seat 60 continues to withdraw. Due to the lack of pressure from the second valve seat 51, the fitting portion 81 also gradually elastically resets. During this process, the second elastic member 53 also gradually elastically resets 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 fitting portion 81 and the second surface 812 of the second valve seat 51 are always in contact and sealed, preventing water leakage, and placing the water purifier 100 in the third state shown in Figure 8. Of course, during this process, since the outer diameter of the sealing member 321 is 8.0mm and the inner diameter of the fitting portion 81 is 7.3mm, the sealing member 321 eventually presses against the first surface 811 of the fitting portion 81 during the reset process, thereby achieving the effect of preventing 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 element 20 is further pulled out, the fitting portion 81 and the second valve seat 51 are out of contact, and the state returns to that shown in FIG. 3 .

[0194] Figures 17 to 19 also show the plugging and unplugging process of the liquid storage component 20 and the liquid reservoir 10. The working principle is the same as the above process, and this application will not repeat it here.

[0195] FIG9 is a schematic diagram of another structure of the first valve assembly in the water purifier provided in an embodiment of the present application, and FIG10 is a schematic diagram of another structure of the second valve assembly in the water purifier provided in an embodiment of the present application.

[0196] 9 and 10 , based on the above embodiment, the structures of the first valve assembly 30 and the second valve assembly 50 are improved. The remaining structures are similar to the above and will not be described again.

[0197] Specifically, the 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 spaced apart and arranged around the outer circumference of the first valve core body 322. As previously described, when the mating portion 81 is configured as an annular member, the mating portion 81 is sleeved around the outer circumference of each first rib 323 and has a clearance fit therewith. The inner diameter of the mating portion 81 is less than 7 mm.

[0198] This arrangement enables a sealed water film to be formed between the inner wall of the fitting portion 81 and the first valve core 32 (forming a cross-section). With this arrangement, since the outer end of the sealing ring 80 is sealedly fitted 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. Therefore, whether during the insertion or removal of the second connecting seat 60, after the second valve seat 51 and the fitting portion 81 are disengaged, the fitting portion 81 will form a seal with the first valve core 32, preventing water in the first valve assembly 30 from leaking out. In this way, water leakage will not occur throughout the entire removal process of the second connecting seat 60.

[0199] 10 , the second valve seat 51 includes a second valve seat body 512 having a second accommodating cavity 513 with two openings at both ends. The opening facing away from the inner cavity of the liquid storage member 20 forms a valve hole 511 of the second valve seat.

[0200] The second valve core 52 extends through the second accommodating cavity 513 and is guided by the walls of the second accommodating cavity 513. The reservoir blocking end 144 of the second valve core 52 blocks the valve hole 511 of the second valve seat when it moves in the first direction F. An annular protrusion 1441 is provided on the outer side of the reservoir blocking end 144. When the second valve core 52 moves until the annular protrusion 1441 is located outside the wall of the valve hole 511 of the second valve seat, the second valve assembly 50 is opened. Here, the reservoir blocking end 144 corresponds to the second blocking end 521 described above.

[0201] 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.

[0202] In the embodiment of the present application, the liquid reservoir 10 is a communicating vessel, and the liquid storage component 20 is a clean water tank; or, the liquid reservoir 10 is a raw water tank seat, and the liquid storage component 20 is a raw water tank; or, the liquid reservoir 10 is a raw water tank, and the liquid storage component 20 is a raw water tank seat.

[0203] Figure 11 is a schematic diagram of the structure of a water purifier provided in an embodiment of the present application; Figure 12 is another schematic diagram of the structure of a water purifier provided in an embodiment of the present application. Figures 1-12 illustrate an example in which the liquid reservoir 10 is a communicating vessel and the liquid storage member 20 is a purified water tank. Continuing with Figures 11 and 12, the present embodiment provides a water purifier 100 for purifying water from a source to be filtered.

[0204] The water purifier 100 also includes a housing, a filter, a liquid level box 200, a water pump, a heater 55, and a water vapor separator 600. The filter is connected to the inner cavity C of the manifold, which is in communication with the clean water tank and the liquid level box 200, respectively. The water pump is in communication with the inner cavity C of the manifold and the heater, respectively. This allows the water pump to pump water from the liquid level box 200 and the clean water tank to the heater via the manifold. The heater is in communication with the water vapor separator 600. It should be noted that the manifold and the clean water tank are detachably connected.

[0205] With this arrangement, when the user draws water, the water pump draws water from the communicating vessel, and the water in the liquid level box 200 and the clean water tank passes through the communicating vessel at the same time and flows into the water pump. The water in the water pump flows into the heater 55, and after being heated by the heater 55, flows into the water vapor separator 600 and flows out of the water vapor separator 600.

[0206] The filter is connected to a water source to be purified to facilitate filtering the water source. The clean water tank is used to store the filtered clean water. The liquid level box 200 is equipped with a water level sensor 12. The clean water tank 20 is connected to the liquid level box 200 through a communicating vessel. Both the clean water tank 20 and the liquid level box 200 are connected to the atmosphere. According to the communicating vessel principle, the water level in the liquid level box 200 can reflect the water level in the clean water tank 20.

[0207] The heater is used to heat the purified water, and the water vapor separator 600 is used to separate the water vapor in the heated purified water. The water vapor separator 600 is provided with a water vapor separation outlet 61, which forms the water inlet of the water purifier 100.

[0208] When the user needs to take clean water, the water pump starts working, and the water in the clean water tank and the liquid level box is simultaneously pumped into the heater through the communicating vessel. After passing through the heater, it continues to pass through the water vapor separator 600 and is taken out from the water vapor separation outlet 61.

[0209] When the water level in the liquid level box 200 is lower than the high liquid level described below, the filter 400 works to purify the water source to be purified, and the purified water enters the liquid level box 200 and the clean water tank respectively through the communicating vessel.

[0210] A water level sensor is provided in the liquid level box 200. Exemplarily, the water level sensor is configured as a float sensor, comprising a first float and a second float. The first float and the second float are used to detect whether the water level has reached a high level or a low level, respectively. Of course, in other embodiments, the water level sensor may also include only one float, which is used to detect whether the water level has reached a high level or a low level. The above-mentioned double-float or single-float detection method is a conventional technical means in this field, and this application will not elaborate on it here. Of course, other methods for detecting a high level or a low level may also be used, for example, using an optical sensor, and this application does not specifically limit this.

[0211] In an embodiment of the present application, the water purifier 100 also includes a controller (not shown), which is electrically connected to the water level sensor and the booster pump. The controller is configured to control the booster pump to stop working and thus stop water production when the liquid level in the liquid level box 200 is at a high liquid level; when the liquid level in the liquid level box 200 is lower than the high liquid level, control the booster pump to start working to produce water; when the liquid level in the liquid level box 200 is at a low liquid level, control the water pump to stop working to stop water discharge.

[0212] Figures 13-19 illustrate an example in which the liquid reservoir 10 is a raw water tank seat and the liquid storage element 20 is a raw water tank. The structures of the components in Figures 13-19, which are numbered the same as those in Figures 1-8 above, are identical or similar, and are not further detailed herein. In this embodiment, the raw water tank seat is used to supply raw water from the raw water tank to the filter. In actual use, the raw water from the raw water tank is supplied via the raw water tank seat to a booster pump, which then supplies the booster pump to the filter for filtration. The raw water tank seat can also be used to supply filtered concentrated water to the raw water tank.

[0213] Figures 13-19 illustrate the example of a raw water tank and a raw water tank base each including two water inlets, one of which serves as the raw water inlet and the other as the concentrated water outlet. Of course, in other embodiments of the present application, the raw water tank and the raw water tank base may include only one water inlet, which serves as the raw water inlet and provides raw water to the entire device. Figures 13-15 illustrate the example of two water inlets having the same structure. In other embodiments of the present application, a single water inlet may also utilize the structure claimed in this application.

[0214] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0215] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A water purifier, characterized in that, It includes a liquid storage container (10), a first valve assembly (30) and a liquid storage member (20); The liquid storage container (10) is provided with a first connecting pipe (40) communicating with the inner cavity of the liquid storage container (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) includes a first valve core (32) and a sealing ring (80) located in the first connecting pipe (40). The first valve core (32) is used to open or close the first valve assembly (30) correspondingly when the second connecting seat (60) is inserted into or pulled out of the first connecting pipe (40); One end of the sealing ring (80) is hermetically fitted with the first connecting pipe (40), and the other end is provided with a fitting portion (81). The fitting portion (81) is movably sleeved on the first valve core (32). The first connecting pipe (40), the first valve core (32) and the sealing ring (80) jointly form an accommodation space (C), and the accommodation space (C) communicates with the inner cavity of the liquid storage container (10) when the first valve assembly (30) is opened.

2. The water purifier according to claim 1, wherein A blocking member (321) is provided on the first valve core (32), and the blocking member (321) is used for blocking and fitting with the fitting portion (81).

3. The water purifier according to claim 2, wherein The water purifier further includes a second valve assembly (50) provided in the second connecting seat (60); The second valve assembly (50) includes a driving member (501). When the second connecting seat (60) is separated from the first connecting pipe (40), the blocking member (321) is in blocking fit with the fitting portion (81); When the second connecting seat (60) is inserted into the first connecting pipe (40), the driving member (501) abuts against the fitting portion (81) and drives the fitting portion (81) to disengage from the blocking member (321), so that the second connecting seat (60) communicates with the inner cavity of the liquid storage container (10) through the accommodation space (C).

4. The water purifier according to claim 3, characterized in that, The sealing ring (80) is configured as an elastic member. The fitting portion (81) can move along a first direction (F) under the drive of the driving member (501), or elastically reset along a second direction (S) opposite to the first direction (F), so that the volume of the accommodation space (C) becomes smaller or larger. 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, wherein The second valve assembly (50) includes a second valve seat (51) and a second valve core (52) passing through the second valve seat (51). The second valve seat (51) is connected in the second connecting seat (60). The second valve core (52) can move relative to the second connecting seat (60) in the second direction (S), or elastically reset in a 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 the driving member (501); The second direction (S) is the pulling-out direction of the second connecting seat (60) relative to the first connecting pipe (40).

6. The water purifier according to claim 5, wherein The installation position of the second valve seat (51) corresponds to that of the mating part (81), and the installation position of the second valve core (52) corresponds to that of the first valve core (32). The second connecting seat (60) is located in the first connecting pipe (40). The state where the second valve seat (51) just contacts the mating part (81) is defined as the initial state. In this 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 mating part (81) is in clearance fit with the first valve core (32), and the plugging member (321) plugs the end face of the mating part (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 main 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 main body (322). The plugging member (321) is provided at the end of the first valve core main body (322) facing away from the inner cavity of the liquid storage device (10) and is connected to each of the first ribs (323).

9. The water purifier according to claim 1, wherein The first valve core (32) includes a first valve core main 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 main body (322); The mating part (81) is configured as an annular member and sleeved on the outer peripheral side of each of the first ribs (323), and is in clearance fit with the outer peripheral side of each of the first ribs (323). The inner diameter of the mating part (81) is less than 7 mm.

10. The water purifier according to claim 8, wherein, Both the mating part (81) and the plugging member (321) are configured as annular members.

11. The water purifier according to claim 10, characterized in that, The plugging member (321) is configured as a disc-shaped structure, and the outer diameter of the plugging member (321) is greater than the inner diameter of the mating part (81) to seal the accommodation space (C).

12. The water purifier according to claim 5 or 6, characterized in that, The sealing ring (80) includes an annular main body part (82) and a necking part (83). Both the necking part (83) and the mating part (81) surround the outside of the first valve core (32). One end of the necking part (83) is connected to the main body part (82), and the other end is connected to the mating part (81).

13. The water purifier according to claim 12, wherein Both the necking part (83) and the mating part (81) are located inside the main body part (82); or The main body part (82), the necking part (83) and the mating part (81) are arranged in sequence along the second direction (S).

14. The water purifier according to claim 12, characterized in that, An outwardly turned first flanging part (84) is provided at the end of the main body part (82) facing away from the necking part (83). The outer peripheral surface of the main body part (82) abuts against the inner wall of the first connecting pipe (40), and the first flanging part (84) is sleeved on the end of the first connecting pipe (40) facing away from the liquid storage device (10).

15. The water purifier according to claim 14, wherein 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 communication pipe (71) through which the first connection pipe (40) penetrates and is inserted. The end of the communication pipe (71) is provided with a second flanging portion (72) that is folded inward. The second flanging portion (72) presses the first flanging portion (84) against the end of the first connection pipe (40) facing away from the liquid reservoir (10).

16. The water purifier according to claim 12, wherein, The inner diameter of the mating portion (81) is less than or equal to the inner diameter of the second valve seat (51); And the projections of the opposite surfaces of the mating portion (81) and the second valve seat (51) on a plane perpendicular to the first direction (F) have an overlapping portion.

17. The water purifier according to claim 16, wherein, An annular raised portion (821) is provided inside the main body portion (82). When the second connection seat (60) is inserted into the first connection pipe (40), the raised portion (821) presses against the outer wall of the second connection seat (60); when the second connection seat (60) is inserted into the first connection pipe (40), at least a part of the second connection seat (60) is located between the mating portion (81) and the main body portion (82).

18. The water purifier according to claim 6, wherein The opposite surfaces of the mating 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, wherein, The end surface of the mating portion (81) facing away from the first surface (811) is defined as a third surface (813); A locally raised first step portion (324) is provided between the two ends of the first valve core (32). The first step portion (324) is used to block the moving path of the mating portion (81) along the first direction (F); The first step portion (324) includes a first step surface (3241) extending radially along the first valve core (32). 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 mating portion (81) along the first direction (F) satisfy: D3 > D4.

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

21. The water purifier according to claim 20, wherein, The first valve seat (31) includes a first valve seat body (312). The first valve seat body (312) is configured with a first accommodating cavity (313) having openings at both ends. The opening facing the inner cavity of the liquid storage device (10) forms the valve hole (311) of the first valve seat. The first valve core (32) penetrates through the first accommodating cavity (313) and is in guiding cooperation with the cavity wall of the first accommodating cavity (313). And the first blocking end (325) of the first valve core (32) enters the inner cavity of the liquid storage device (10) through the valve hole (311) of the first valve seat.

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

23. The water purifier according to claim 22, characterized in that, At least one second step portion (34) is provided on the outer surface of the first valve core (32). Both 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) includes a second valve seat body (512). The second valve seat body (512) is configured with a second accommodating cavity (513) having openings at both ends. The opening facing away from the inner cavity of the liquid storage member (20) forms the valve hole (511) of the second valve seat. The second valve core (52) penetrates through the second accommodating cavity (513) and is in guiding cooperation with the cavity wall of the second accommodating cavity (513). And the second blocking end (521) of the second valve core (52) blocks the valve hole (511) of the second valve seat when moving in the first direction (F).

25. The water purifier according to claim 24, wherein, An inwardly turned third flanging portion (514) is provided at the edge of the valve hole (511) of the second valve seat. The third flanging portion (514) is used for stop cooperation with the second blocking end (521) of the second valve core (52).

26. The water purifier according to claim 24, wherein, The second valve assembly (50) further includes a second elastic member (53). The second elastic member (53) is disposed 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 in the first direction (F) to the second valve core (52); preferably, the elastic coefficient of the second elastic member (53) is less than the elastic coefficient of the first elastic member (33).

27. The water purifier according to claim 24, wherein The outer wall of the liquid storage member (20) is configured with an installation cavity (91) communicating with the inner cavity of the liquid storage member (20), and the second connection seat (60) is installed in the installation cavity (91).

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

29. The water purifier according to claim 1, characterized in that The liquid storage device (10) is a communicating vessel, and the liquid storage member (20) is a clean water tank; the water purifier further includes: a filter and a water pump, the filter communicates with the inner cavity of the communicating vessel, and the water pump extracts water from the clean water tank through the communicating vessel. The water purifier further includes: a liquid level box, the communicating vessel communicates with the liquid level box, and when the water pump pumps water, the water in both the liquid level box and the clean water tank drops.

30. The water purifier according to claim 1, characterized in that, The water purifier further includes: a filter; the liquid storage device (10) is a raw water tank seat, the liquid storage member (20) is a raw water tank, and the raw water tank seat is used to supply the raw water in the raw water tank to the filter.

31. A water purifier, characterized in that, It includes a liquid storage device (10), a liquid storage member (20), a first valve assembly (30) and a second valve assembly (50). The liquid storage device (10) is provided with a first connecting pipe (40) communicating with the inner cavity of the liquid storage device (10); the liquid storage member (20) is provided with a second connection seat (60) communicating with the inner cavity of the liquid storage member (20). The first valve assembly (30) includes a sealing ring (80) and a first valve core (32) that reciprocates along the length direction of the first connecting pipe (40) to open and close the inner cavity of the liquid storage device (10). The second valve assembly (50) includes a second valve seat (51) and a second valve core (52) provided on the second valve seat (51). The second valve core (52) reciprocates along the length direction of the second connection seat (60) to open and close the inner cavity of the liquid storage member (20). One end of the sealing ring (80) is hermetically fitted to the first connecting pipe (40), and the other end is provided with a fitting portion (81), and the fitting portion (81) is movably sleeved on the outer periphery of the first valve core (32). The setting position of the second valve seat (51) corresponds to the setting position of the fitting portion (81), and the setting position of the second valve core (52) corresponds to the setting position of the first valve core (32). When the second connection seat (60) is located in the first connecting pipe (40), the state where the second valve seat (51) just contacts the fitting 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) are in contact with each other and do not transmit acting forces to each other.

32. The water purifier according to claim 31, wherein, The first valve assembly (30) further comprises a first valve seat (31), the first valve core (32) being inserted through the first valve seat (31), the first valve seat (31) being connected to the first connecting tube (40), the first valve core (32) being capable of moving relative to the first valve seat (31) along a first direction (F), or elastically resetting 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; the first direction (F) is the direction in which the second connecting seat (60) is inserted into the first connecting tube (40), and is parallel to the length direction of the first connecting tube (40).

33. The water purifier according to claim 32, characterized in that, The second valve core (52) is capable of moving relative to the second valve seat (51) in the second direction (S), or elastically returning to the first direction (F), so as to open or close the valve hole (511) of the second valve seat.

34. The water purifier according to claim 32, characterized in that, The matching portion (81) is clearance-matched with the first valve core (32).

35. The water purifier according to claim 34, 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 and arranged around the outer peripheral surface of the first valve core body (322), and the matching portion (81) is constructed as an annular part and is sleeved on the outer peripheral side of each of the first ribs (323) and is gap-matched with the outer peripheral side of each of the first ribs (323), and the inner diameter of the matching portion (81) is less than 7 mm.

36. The water purifier according to claim 32, characterized in that, The first connecting pipe (40), the first valve core (32) and the sealing ring (80) together form an accommodating space (C); The sealing ring (80) is configured as an elastic member, and the matching portion (81) can move along the first direction or elastically reset along the second direction under the drive of the second valve seat (51) to reduce or increase the volume of the accommodating space (C).

37. The water purifier according to claim 32, 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).

38. The water purifier according to claim 37, wherein, 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).

39. The water purifier according to claim 37, wherein 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).

40. The water purifier according to claim 39, wherein, The water purifier (100) further comprises an outer shell (70), wherein an end of the outer shell (70) is provided with a second flange portion (72) folded inwardly, wherein the second flange portion (72) presses the first flange portion (84) against the end of the first connecting pipe (40) facing away from the liquid storage container (10).

41. The water purifier according to claim 40, wherein, The inner diameter of the mating portion (81) is less than or equal to the inner diameter of the second valve seat (51); And the surfaces of the mating portion (81) and the second valve seat (51) facing each other have an overlapping portion in the projection on a plane perpendicular to the first direction (F).

42. The water purifier according to claim 41, characterized in that, The outer diameter of the second connection seat (60) is less than the inner diameter of the main body portion (82); An annular protrusion portion (821) is provided inside the main body portion (82). When the second connection seat (60) is inserted into the first connecting pipe (40), the protrusion portion (821) presses against the outer wall of the second connection seat (60).

43. The water purifier according to claim 32, wherein, The opposite surfaces of the mating 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 storage device (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.

44. The water purifier according to claim 43, characterized in that, The end surface of the mating portion (81) facing away from the first surface (811) is defined as a third surface (813); A first stepped portion (324) with a partial protrusion is provided between the two ends of the first valve core (32), and the first stepped portion (324) is used to block the moving path of the mating portion (81) along the first direction (F); The first stepped portion (324) includes a first stepped surface (3241) extending radially along the first valve core (32), and the first stepped 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 stepped surface (3241) and the thickness dimension D4 of the mating portion (81) along the first direction (F) satisfy: D3 > D4.

45. The water purifier according to any one of claims 32-44, characterized in that, The first valve seat (31) includes a first valve seat main body (312), and the first valve seat main body (312) is configured with a first accommodating cavity having openings at both ends. The opening facing the inner cavity of the liquid storage device (10) forms a valve hole (311) of the first valve seat; The first valve core (32) penetrates through the first accommodating cavity and is in guiding fit with the cavity wall of the first accommodating cavity, and the first sealing end (325) of the first valve core (32) enters the inner cavity of the liquid storage device (10) through the valve hole (311) of the first valve seat.

46. The water purifier according to claim 45, wherein, The first valve assembly (30) further includes a first elastic member (33), and the first elastic member (33) is disposed between the inner wall of the first valve seat (31) and the first valve core (32) to always apply an elastic force to the first valve core (32) in the second direction (S).

47. The water purifier according to claim 46, wherein The outer surface of the first valve core (32) is provided with at least one second step portion (34), and 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).

48. The water purifier according to any one of claims 32-44, characterized in that, The second valve seat (51) includes a second valve seat body (512). The second valve seat body (512) is configured with a second accommodating cavity having openings at both ends. The opening facing away from the inner cavity of the liquid storage member (20) forms a valve hole (511) of the second valve seat. The second valve core (52) penetrates through the second accommodating cavity and is in guiding cooperation with the cavity wall of the second accommodating cavity. When the second sealing end (521) of the second valve core (52) moves along the first direction (F), the valve hole (511) of the second valve seat is blocked.

49. The water purifier according to claim 48, wherein The second valve assembly (50) further includes a second elastic member (53). The second elastic member (53) is disposed between the inner wall of the second valve seat (51) and the second sealing end (521) of the second valve core (52) to always apply an elastic force in the first direction (F) to the second valve core (52). The first valve assembly (30) further includes a first elastic member (33). The first elastic member (33) is disposed between the inner wall of the first valve seat (31) and the first valve core (32) to always apply an elastic force in the second direction (S) to the first valve core (32). The elastic coefficient of the second elastic member (53) is smaller than that of the first elastic member (33).

50. The water purifier according to claim 48, wherein, An installation cavity communicating with the inner cavity of the liquid storage member (20) is formed on the outer wall of the liquid storage member (20), and the second connection seat (60) is installed in the installation cavity.

51. The water purifier according to any one of claims 31-44, characterized in that, The liquid storage device (10) communicates with the atmosphere, and a water level sensor for detecting the water level is provided in the liquid storage device (10).

52. The water purifier according to any one of claims 31-44, characterized in that, The first connecting pipe (40), the first valve core (32), and the sealing ring (80) together form an accommodating space (C). The accommodating space (C) communicates with the inner cavity of the liquid storage device (10) when the first valve assembly (30) is opened.

53. The water purifier according to claim 52, characterized in that, A blocking member (321) is provided on the first valve core (32). The blocking member (321) is used for blocking cooperation with the matching portion (81) to seal the accommodating space (C).

54. The water purifier according to claim 31, characterized in that, The liquid storage device (10) is a liquid level box, and the liquid storage member (20) is a clean water tank; or, the liquid storage device (10) is a raw water tank seat, and the liquid storage member (20) is a raw water tank; or, the liquid storage device (10) is a raw water tank, and the liquid storage member (20) is a raw water tank seat.

55. A water purifier, characterized in that, Comprising: Liquid storage device (10), comprising: a first connecting pipe (40), a first valve assembly (30) and a sealing ring (80); the first valve assembly (30) is installed on the first connecting pipe (40); the first valve assembly (30) includes a first valve core (32), the first valve core (32) includes a first blocking end (325) and a relative end opposite to the first blocking end (325); one end of the sealing ring (80) is sealingly fitted to the first connecting pipe (40), and the other end is provided with a fitting portion (81), and the fitting portion (81) is movably sleeved on the outer periphery of the relative end; Liquid storage member (20), detachably installed on the liquid storage device (10); Wherein, the first valve core (32), the first connecting pipe (40) and the sealing ring (80) together form an accommodation space (C); when the liquid storage member (20) is not installed on the liquid storage device (10), the fitting portion (81) is located at the relative end, the first valve assembly (30) is closed, the first blocking end (325) is closed, and the inner cavity of the liquid storage device (10) is disconnected from the accommodation space (C).

56. The water purifier according to claim 55, characterized in that, When the liquid storage member (20) is installed on the liquid storage device (10), the fitting portion (81) is located between the relative end and the first blocking end (325), the first valve assembly (30) is opened, the first blocking end (325) is opened, and the inner cavity of the liquid storage device (10) is communicated with the accommodation space (C).

57. The water purifier according to claim 55, characterized in that, The liquid storage member (20) is provided with a second connection seat (60) communicated with the inner cavity of the liquid storage member (20), and the first valve core (32) is used to open or close the first valve assembly (30) correspondingly when the second connection seat (60) is inserted into or pulled out of the first connecting pipe (40); the water purifier further includes a second valve assembly (50) provided in the second connection seat (60); The second valve assembly (50) includes a driving member (501), when the second connection seat (60) is inserted into the first connecting pipe (40), the driving member (501) abuts against the fitting portion (81) and drives the fitting portion (81) to disengage from the relative end, so that the second connection seat (60) is communicated with the inner cavity of the liquid storage device (10) through the accommodation space (C).

58. The water purifier according to claim 57, wherein, The sealing ring (80) is configured as an elastic member, and the fitting 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 accommodation space (C) becomes smaller or larger, and the first direction (F) is the insertion direction of the second connection seat (60) into the first connecting pipe (40).

59. The water purifier according to claim 57, characterized in that, The second valve assembly (50) includes a second valve seat (51) and a second valve core (52) disposed through the second valve seat (51). The second valve seat (51) is connected within the second connecting seat (60). The second valve core (52) is capable of moving relative to the second connecting seat (60) in a second direction (S), or elastically resetting in a 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 the driving member (501). The second direction (S) is the pulling-out direction of the second connecting seat (60) relative to the first connecting pipe (40).

60. The water purifier according to claim 59, wherein, The installation position of the second valve seat (51) corresponds to the installation position of the mating portion (81), and the installation position of the second valve core (52) corresponds to the installation position of the first valve core (32). When the second connecting seat (60) is located in the first connecting pipe (40), the state where the second valve seat (51) just contacts the mating 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) are in contact with each other and do not transmit force to each other.

61. The water purifier according to claim 56, wherein, A plugging member (321) is provided on the opposite end of the first valve core (32) for plugging and mating with the mating portion (81). When the liquid storage member (20) is not installed on the liquid storage device (10), the second connecting seat (60) is disengaged from the first connecting pipe (40), and the plugging member (321) is in plugging and mating with the mating portion (81).

62. The water purifier according to claim 61, characterized in that, The mating portion (81) is in clearance fit with the first valve core (32), and the plugging member (321) plugs the end face of the mating portion (81) facing the second valve core (52).

63. The water purifier according to claim 62, characterized in that, The first valve core (32) includes a first valve core main 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 main body (322). The plugging member (321) is provided at the end of the first valve core main body (322) facing away from the inner cavity of the liquid storage device (10) and is connected to each of the first ribs (323).

64. The water purifier according to claim 63, wherein, Both the mating portion (81) and the plugging member (321) are configured as annular members.

65. The water purifier according to claim 64, characterized in that, The plugging member (321) is configured as a disc-shaped structure, and the outer diameter of the plugging member (321) is greater than the inner diameter of the mating portion (81) to seal the accommodation space (C).

66. The water purifier according to claim 55, wherein, The first valve core (32) includes a first valve core main 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 main body (322). The mating portion (81) is configured as an annular member and is sleeved on the outer peripheral side of each of the first ribs (323), and is in clearance fit with the outer peripheral side of each of the first ribs (323). The inner diameter of the mating portion (81) is less than 7 mm.

67. The water purifier according to claim 59, characterized in that, The sealing ring (80) includes an annular main body portion (82) and a necking portion (83). Both the necking portion (83) and the mating portion (81) surround the outer side of the first valve core (32). One end of the necking portion (83) is connected to the main body portion (82), and the other end is connected to the mating portion (81).

68. The water purifier according to claim 67, characterized in that, Both the necking portion (83) and the mating portion (81) are located inside the main body portion (82); or The main body portion (82), the necking portion (83), and the mating portion (81) are arranged in sequence along the second direction (S).

69. The water purifier according to claim 67, wherein An outwardly turned first flanging portion (84) is provided at the end of the main body portion (82) facing away from the necking portion (83). The outer peripheral surface of the main body portion (82) abuts against the inner wall of the first connecting pipe (40), and the first flanging portion (84) is sleeved on the end of the first connecting pipe (40) facing away from the liquid storage device (10).

70. The water purifier according to claim 69, wherein, The water purifier (100) further includes a housing (70). The liquid storage device (10) is connected to the housing (70). The housing (70) is provided with a communicating pipe (71) for the first connecting pipe (40) to penetrate and insert. An inwardly turned second flanging portion (72) is provided at the end of the communicating pipe (71). The second flanging portion (72) presses the first flanging portion (84) tightly against the end of the first connecting pipe (40) facing away from the liquid storage device (10).

71. The water purifier according to claim 67, characterized in that, The inner diameter of the mating portion (81) is less than or equal to the inner diameter of the second valve seat (51); And the projections of the opposite surfaces of the mating portion (81) and the second valve seat (51) on a plane perpendicular to the first direction (F) have an overlapping portion.

72. The water purifier according to claim 71, wherein, An annular protrusion portion (821) is provided inside the main body portion (82). When the second connection seat (60) is inserted into the first connecting pipe (40), the protrusion portion (821) abuts against the outer wall of the second connection seat (60); when the second connection seat (60) is inserted into the first connecting pipe (40), at least a part of the second connection seat (60) is located between the mating portion (81) and the main body portion (82).

73. The water purifier according to claim 60, characterized in that, The opposite surfaces of the mating 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 storage device (10) protrudes from the first surface (811); the distance D1 between the end face of the first valve core (32) facing the second valve core (52) and the first surface (811), and the distance D2 between the end face of the second valve core (52) facing the first valve core (32) and the second surface (812) satisfy: D1 < D2.

74. The water purifier according to claim 73, wherein Define the end face of the mating part (81) facing away from the first surface (811) as the third surface (813); a first stepped part (324) with a partial protrusion is provided between the two ends of the first valve core (32), and the first stepped part (324) is used to block the moving path of the mating part (81) along the first direction (F); The first stepped part (324) includes a first stepped surface (3241) extending radially along the first valve core (32), and the first stepped 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 stepped surface (3241) and the thickness dimension D4 of the mating part (81) along the first direction (F) satisfy: D3 > D4.

75. The water purifier according to claim 56, characterized in that, The first valve assembly (30) further includes a first valve seat (31), the first valve core (32) is disposed through 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 the first direction (F), or elastically reset along the second direction (S) opposite to the first direction (F) to open or close the valve hole (311) of the first valve seat (31), and the first direction (F) is the insertion direction of the second connecting seat (60) into the first connecting pipe (40).

76. The water purifier according to claim 75, characterized in that, The first valve seat (31) includes a first valve seat main body (312), and the first valve seat main body (312) is configured with a first accommodating cavity (313) with two open ends, and the opening facing the inner cavity of the liquid storage device (10) forms the valve hole (311) of the first valve seat; The first valve core (32) penetrates through the first accommodating cavity (313) and is in guiding fit with the cavity wall of the first accommodating cavity (313), and the first sealing end (325) of the first valve core (32) enters the inner cavity of the liquid storage device (10) through the valve hole (311) of the first valve seat.

77. The water purifier according to claim 75, characterized in that, The first valve assembly (30) further includes a first elastic member (33), and the first elastic member (33) is disposed between the inner wall of the first valve seat (31) and the first valve core (32) to always apply an elastic force to the first valve core (32) in the second direction (S).

78. The water purifier according to claim 77, characterized in that, At least one second stepped part (34) is provided on the outer surface of the first valve core (32), and both 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 stepped part (34).

79. The water purifier according to claim 59, wherein, The second valve seat (51) includes a second valve seat main body (512), and the second valve seat main body (512) is configured with a second accommodating cavity (513) with two open ends, and the opening facing away from the inner cavity of the liquid storage member (20) forms the valve hole (511) of the second valve seat; The second valve core (52) penetrates through the second accommodation cavity (513), and is in guiding cooperation with the cavity wall of the second accommodation cavity (513). When the second sealing end (521) of the second valve core (52) moves along the first direction (F), it seals the valve hole (511) of the second valve seat.

80. The water purifier according to claim 79, characterized in that, A third flanging portion (514) that turns inward is provided at the edge of the valve hole (511) of the second valve seat. The third flanging portion (514) is used for stop cooperation with the second sealing end (521) of the second valve core (52).

81. The water purifier according to claim 79, wherein, The second valve assembly (50) further includes a second elastic member (53). The second elastic member (53) is disposed between the inner wall of the second valve seat (51) and the second sealing end (521) of the second valve core (52) to always apply an elastic force towards the first direction (F) to the second valve core (52); preferably, the elastic coefficient of the second elastic member (53) is smaller than the elastic coefficient of the first elastic member (33).

82. The water purifier according to claim 79, characterized in that, An installation cavity (91) that communicates with the inner cavity of the liquid storage member (20) is constructed on the outer wall of the liquid storage member (20). The second connection seat (60) is installed in the installation cavity (91).

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