Water purifier

Abstract

The invention relates to a water purifier. The water purifier comprises a liquid storage box, a water purifying box, a liquid storage box valve assembly and a water purifying box valve assembly. The liquid storage box valve assembly comprises a sealing ring and a liquid storage box valve element, the water purification box valve assembly comprises a water purification box valve seat and a water purification box valve element arranged on the water purification box valve seat, and the water purification box valve element reciprocates in the length direction of the water purification box connecting seat so as to connect and disconnect the water purification box connecting seat; one end of the sealing ring is in sealing fit with the liquid storage box connecting pipe, and the other end of the sealing ring is provided with a matching part which movably sleeves the periphery of the liquid storage box valve core; the arrangement position of the water purification box valve seat corresponds to the arrangement position of the matching part, the arrangement position of the water purification box valve element corresponds to the arrangement position of the liquid storage box valve element, and in the initial state, a gap is formed between the liquid storage box valve element and the water purification box valve element, or the liquid storage box valve element and the water purification box valve element make contact with each other and do not transmit acting force to each other. The problem of water leakage when the water purification tank is taken can be relieved or avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification equipment, and particularly to a water purifier. Background Art

[0002] A water purifier, also called a water purification machine, is mainly used for filtering drinking water and usually effectively removes various pollutants in water by physical filtering methods. The water purifier in the related art includes a filter, a liquid storage box, a water purification tank, etc. The water filtered by the filter enters the water purification tank for users to use. The liquid storage box is communicated with the water purification tank. The liquid storage box can be, for example, a liquid level box, and a water level sensor is arranged therein to reflect the water level in the water purification tank through the water level in the liquid storage box. In addition, the connecting pipe on the water purification tank is detachably connected to the connecting pipe on the liquid storage box by means of side plugging and unplugging cooperation. However, when the user takes the water purification tank, at the moment when the connecting pipe of the water purification tank is separated from the connecting pipe of the liquid storage box, often part of the water leaks out of the connection port, resulting in a poor user experience. Summary of the Invention

[0003] Based on this, it is necessary to provide a water purifier that can reduce or avoid the problem of water leakage caused by the instantaneous separation of the water purification tank connecting seat and the liquid storage box connecting pipe when taking the water purification tank.

[0004] An embodiment of the present application provides a water purifier, including a liquid storage box, a water purification tank, a liquid storage box valve assembly, and a water purification tank valve assembly;

[0005] The liquid storage box is provided with a liquid storage box connecting pipe communicated with the inner cavity of the liquid storage box; the water purification tank is provided with a water purification tank connecting seat communicated with the inner cavity of the water purification tank;

[0006] The liquid storage box valve assembly includes a sealing ring and a liquid storage box valve core that reciprocates along the length direction of the liquid storage box connecting pipe to open and close the liquid storage box connecting pipe. The water purification tank valve assembly includes a water purification tank valve seat and a water purification tank valve core arranged on the water purification tank valve seat. The water purification tank valve core reciprocates along the length direction of the water purification tank connecting seat to open and close the water purification tank connecting seat;

[0007] One end of the sealing ring is sealingly fitted to the liquid storage box connecting pipe, and the other end is provided with a fitting portion, and the fitting portion is movably sleeved on the outer periphery of the liquid storage box valve core;

[0008] The setting position of the water purification tank valve seat corresponds to the setting position of the fitting portion, and the setting position of the water purification tank valve core corresponds to the setting position of the liquid storage box valve core. The state where the water purification tank connecting seat is located in the liquid storage box connecting pipe and the water purification tank valve seat just contacts the fitting portion is defined as the initial state. In the initial state, there is a gap between the liquid storage box valve core and the water purification tank valve core, or the liquid storage box valve core and the water purification tank valve core are in contact with each other and do not transmit force to each other.

[0009] In one embodiment, the liquid storage box valve assembly further includes a liquid storage box valve seat. The liquid storage box valve core is disposed through the liquid storage box valve seat. The liquid storage box valve seat is connected inside the liquid storage box connecting pipe. The liquid storage box valve core is capable of moving relative to the liquid storage box valve seat in a first direction, or elastically resetting in a second direction opposite to the first direction to open or close the valve hole of the liquid storage box valve seat. The first direction is the direction in which the water purification tank connection seat is inserted into the liquid storage box connecting pipe and is parallel to the length direction of the liquid storage box connecting pipe.

[0010] In one embodiment, the water purification tank valve core is capable of moving relative to the water purification tank valve seat in the second direction, or elastically resetting in the first direction to open or close the valve hole of the water purification tank valve seat.

[0011] In one embodiment, the mating portion is in clearance fit with the liquid storage box valve core.

[0012] In one embodiment, the liquid storage box valve core includes a liquid storage box valve core main body and a plurality of liquid storage box ribs. The plurality of liquid storage box ribs are arranged at intervals and around the outer peripheral surface of the liquid storage box valve core main body. The mating portion is configured as an annular member and sleeved on the outer peripheral side of each liquid storage box rib and is in clearance fit with the outer peripheral side of each liquid storage box rib. The inner diameter of the mating portion is less than 7 mm.

[0013] In one embodiment, the liquid storage box connecting pipe, the liquid storage box valve core, and the sealing ring together form an accommodation space;

[0014] The sealing ring is configured as an elastic member. The mating portion is capable of moving in the first direction under the drive of the water purification tank valve seat, or elastically resetting in the second direction to make the volume of the accommodation space smaller or larger.

[0015] In one embodiment, the sealing ring includes an annular main body portion and a necking portion. Both the necking portion and the mating portion are disposed around the outside of the liquid storage box valve core. One end of the necking portion is connected to the main body portion, and the other end is connected to the mating portion.

[0016] In one embodiment, both the necking portion and the mating portion are located inside the main body portion; or

[0017] The main body portion, the necking portion, and the mating portion are arranged in sequence in the second direction.

[0018] In one embodiment, the end of the main body portion facing away from the necking portion is provided with a sealing ring flanging portion that turns outward. The outer peripheral surface of the main body portion is pressed against the inner wall of the liquid storage box connecting pipe. The sealing ring flanging portion is sleeved on the end of the liquid storage box connecting pipe facing away from the liquid storage box.

[0019] In one embodiment, the water purifier further includes a cylindrical installation cover. The end of the installation cover is provided with an installation cover flanging portion that turns inward. The installation cover flanging portion presses the sealing ring flanging portion tightly against the end of the liquid storage box connecting pipe facing away from the liquid storage box.

[0020] In one embodiment, the inner diameter of the fitting portion is less than or equal to the inner diameter of the clean water tank valve seat;

[0021] Furthermore, the surfaces of the matching portion and the clean water tank valve seat that are opposite to each other have overlapping portions when projected on a plane perpendicular to the first direction.

[0022] In one embodiment, the outer diameter of the clean water tank connection seat is smaller than the inner diameter of the main body;

[0023] An annular protrusion is arranged inside the main body. When the clean water tank connection seat is inserted into the liquid storage box connection pipe, the protrusion presses against the outer wall of the clean water tank connection seat.

[0024] In one embodiment, the opposing surfaces of the matching portion and the clean water tank valve seat are defined as a first surface and a second surface respectively;

[0025] In the initial state, the end of the valve core of the liquid storage box away from the inner cavity of the liquid storage box protrudes from the first surface;

[0026] The distance D1 between the end face of the liquid storage box valve core facing the clean water tank valve core and the first surface and the distance D2 between the end face of the clean water tank valve core facing the liquid storage box valve core and the second surface satisfy:

[0027] D1<D2.

[0028] In one of the embodiments, an end surface of the mating portion facing away from the first surface is defined as a third surface;

[0029] A partially raised liquid storage box step portion is provided between the two ends of the liquid storage box valve core, and the liquid storage box step portion is used to block the moving path of the matching portion along the first direction;

[0030] The liquid storage box step portion includes a first step surface extending radially along the liquid storage box valve core, and the first step surface is arranged opposite to the third surface;

[0031] The distance D3 between the end surface of the liquid storage box valve core facing the water purification tank valve core and the first step surface and the thickness dimension D4 of the matching portion along the first direction satisfy: D3>D4.

[0032] In one embodiment, the liquid storage box valve seat comprises a liquid storage box valve seat body, the liquid storage box valve seat body is configured with a first accommodating cavity with openings at both ends, and the opening facing the inner cavity of the liquid storage box forms a valve hole of the liquid storage box valve seat;

[0033] The liquid storage box valve core penetrates the first accommodating cavity and cooperates with the cavity wall of the first accommodating cavity for guidance, and the liquid storage box blocking end of the liquid storage box valve core enters the inner cavity of the liquid storage box through the valve hole of the liquid storage box valve seat.

[0034] In one embodiment, the liquid storage box valve assembly further includes a liquid storage box elastic member disposed between the inner wall of the liquid storage box valve seat and the liquid storage box valve core for always applying an elastic force in the second direction to the liquid storage box valve core.

[0035] In one embodiment, at least one second step portion is provided on the outer surface of the liquid storage box valve core, and both ends of the liquid storage box elastic member are respectively pressed between the inner wall of the liquid storage box valve seat and the at least one second step portion.

[0036] In one embodiment, the water purification tank valve seat includes a water purification tank valve seat body configured with a second accommodation cavity having openings at both ends, and the opening facing away from the inner cavity of the water purification tank forms the valve hole of the water purification tank valve seat;

[0037] The water purification tank valve core penetrates through the second accommodation cavity and is in guiding cooperation with the cavity wall of the second accommodation cavity, and when the water purification end of the water purification tank valve core moves in the first direction, it seals the valve hole of the water purification tank valve seat.

[0038] In one embodiment, the water purification tank valve assembly further includes a water purification tank elastic member disposed between the inner wall of the water purification tank valve seat and the water purification end of the water purification tank valve core for always applying an elastic force in the first direction to the water purification tank valve core;

[0039] The liquid storage box valve assembly further includes a liquid storage box elastic member disposed between the inner wall of the liquid storage box valve seat and the liquid storage box valve core for always applying an elastic force in the second direction to the liquid storage box valve core;

[0040] The elastic coefficient of the water purification tank elastic member is less than that of the liquid storage box elastic member.

[0041] In one embodiment, an installation cavity communicating with the inner cavity of the water purification tank is configured on the outer wall of the water purification tank, and the water purification tank connection seat is installed in the installation cavity.

[0042] In one embodiment, the liquid storage box communicates with the atmosphere, and a water level sensor for detecting the water level is provided in the liquid storage box.

[0043] In one embodiment, the liquid storage box connecting pipe, the liquid storage box valve core, and the sealing ring together form an accommodation space, and the accommodation space communicates with the inner cavity of the liquid storage box when the liquid storage box valve assembly is opened.

[0044] In one embodiment, a plugging member is provided on the liquid storage box valve core, and the plugging member is used for plugging cooperation with the mating portion to seal the accommodation space.

[0045] Advantages of the water purifier provided by the embodiments of the present application:

[0046] One end of the sealing ring is sealingly fitted to the liquid storage box connecting pipe, and the other end is provided with a fitting portion. The fitting portion is movably sleeved on the outer periphery of the liquid storage box valve core, and the fitting portion can move relative to the liquid storage box valve core along the length direction of the liquid storage box connecting pipe. The setting position of the water purification tank valve seat corresponds to the setting position of the fitting portion. When the water purification tank connecting seat is inserted into the liquid storage box connecting pipe, when the water purification tank valve seat just contacts the fitting portion, there is a gap between the liquid storage box valve core and the water purification tank valve core, or the liquid storage box valve core and the water purification tank valve core are in contact with each other and do not transmit force to each other.

[0047] With such a setting, since one end of the sealing ring is sealingly fitted to the liquid storage box connecting pipe, when the water purification tank connecting seat is inserted into the liquid storage box connecting pipe, when the water purification tank valve seat just contacts the fitting portion, it contacts the fitting portion to form a seal. At this time, there is a gap between the liquid storage box valve core and the water purification tank valve core, and the two are not in contact, or the liquid storage box valve core and the water purification tank valve core are in contact with each other and do not transmit force to each other. In this way, the liquid storage box valve assembly and the water purification tank valve assembly are both in the closed state. As the water purification tank connecting seat is inserted deeper, the fitting portion is pushed by the water purification tank valve seat to move relative to the liquid storage box valve core in the insertion direction and undergoes elastic deformation, so that the water purification tank valve seat and the fitting portion are tightly pressed and always maintain a sealed state. During this process, regardless of whether the liquid storage box valve assembly and the water purification tank valve assembly are opened, the water in the liquid storage box valve assembly and the water purification tank valve assembly cannot leak from the boundary position between the fitting portion and the water purification tank valve seat. Therefore, during the entire insertion process of the water purification tank connecting seat, no water leakage will occur. Description of the Drawings

[0048] Figure 1 Schematic structural diagram of the water purifier provided by the embodiment of the present application;

[0049] Figure 2 Schematic cross-sectional structural diagram of the water purifier provided by the embodiment of the present application;

[0050] Figure 3 is Figure 2 Partial enlarged view of A in;

[0051] Figure 4 Schematic structural diagram of the liquid storage box valve assembly in the water purifier provided by the embodiment of the present application;

[0052] Figure 5 Schematic structural diagram of the water purification tank valve assembly in the water purifier provided by the embodiment of the present application;

[0053] Figure 6 Schematic structural diagram of the water purifier provided by the embodiment of the present application when both the liquid storage box valve assembly and the water purification tank valve assembly are in the open state;

[0054] Figure 7 Schematic diagram of another structure of the liquid storage box valve core in the water purifier provided by the embodiment of the present application;

[0055] Figure 8 This is a schematic diagram of another structure of the liquid storage box valve assembly in the water purifier provided by the embodiments of the present application.

[0056] Explanation of the reference numerals in the attached drawings:

[0057] 100, water purifier; 10, communicating vessel;

[0058] 110, liquid storage box; 111, liquid storage box connecting pipe;

[0059] 120, clean water tank; 121, clean water tank connecting seat; 122, installation cavity; 123, avoidance cavity;

[0060] 130, liquid storage box valve assembly; 131, liquid storage box valve seat; 1311, valve hole of the liquid storage box valve seat; 132, liquid storage box valve core; 1321, liquid storage box valve core body; 1322, liquid storage box rib; 1323, liquid storage box step portion; 1324, first step surface; 133, liquid storage box valve seat body; 134, liquid storage box sealing end; 135, first seal; 136, liquid storage box elastic member; 137, second step portion;

[0061] 140, clean water tank valve assembly; 141, clean water tank valve seat; 1411, valve hole of the clean water tank valve seat; 142, clean water tank valve core; 143, clean water tank valve seat body; 144, clean water tank sealing end; 1441, annular protrusion; 145, base; 146, connecting rib; 147, clean water tank elastic member;

[0062] 150, sealing ring; 151, fitting portion; 1511, first surface; 1512, second surface; 1513, third surface; 152, main body portion; 1521, sealing ring flanging portion; 1522, protrusion portion; 153, necking portion;

[0063] 160, installation cover; 161, installation cover flanging portion; 321, plugging member;

[0064] F, first direction; S, second direction; C, accommodating space. Detailed implementation manners

[0065] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be made in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0066] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0067] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0068] In the present invention, unless otherwise clearly specified and limited, the terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0070] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0071] The water purifier according to the embodiment of the present application will be described below with reference to the accompanying drawings.

[0072] Figure 1 It is a schematic structural diagram of the water purifier provided by the embodiment of the present application, Figure 2 It is a schematic cross-sectional structural diagram of the water purifier provided by the embodiment of the present application, Figure 3 is Figure 2 a partial enlarged view of the A position of Figure 4 It is a schematic structural diagram of the liquid storage box valve assembly in the water purifier provided by the embodiment of the present application, Figure 5 It is a schematic structural diagram of the clean water tank valve assembly in the water purifier provided by the embodiment of the present application, Figure 6 It is a schematic structural diagram of the liquid storage box valve assembly and the clean water tank valve assembly in the water purifier provided by the embodiment of the present application both in the open state.

[0073] Referring to Figure 1 , Figure 2 , Figure 3 , the water purifier 100 includes a liquid storage box 110, a clean water tank 120, a liquid storage box valve assembly 130 and a clean water tank valve assembly 140.

[0074] The liquid storage box 110 is provided with a liquid storage box connecting pipe 111 communicating with the inner cavity of the liquid storage box 110, and the clean water tank 120 is provided with a clean water tank connecting seat 121 communicating with the inner cavity of the clean water tank 120. The insertion direction of inserting the clean water tank connecting seat 121 into the liquid storage box connecting pipe 111 is defined as the first direction F. The clean water tank connecting seat 121 can be, for example, a tubular member.

[0075] Combined with Figure 3 , Figure 4 and Figure 5 , the liquid storage box valve assembly 130 includes a sealing ring 150 and a liquid storage box valve core 132 that reciprocates along the length direction of the liquid storage box connecting pipe 111 to open and close the liquid storage box connecting pipe 111, and the clean water tank valve assembly 140 includes a clean water tank valve seat 141 and a clean water tank valve core 142 disposed on the clean water tank valve seat 141. The clean water tank valve core 142 reciprocates along the length direction of the clean water tank connecting seat 121 to open and close the clean water tank connecting seat 121.

[0076] One end of the sealing ring 150 is sealingly fitted to the liquid storage box connecting pipe 111, and a fitting portion 151 is provided at the other end. The fitting portion 151 is movably sleeved on the outer periphery of the liquid storage box valve core 132.

[0077] The setting position of the water purification tank valve seat 141 corresponds to the setting position of the fitting portion 151, and the setting position of the water purification tank valve core 142 corresponds to the setting position of the liquid storage box valve core 132. When the water purification tank connecting seat 121 is located in the liquid storage box connecting pipe 111 and the water purification tank valve seat 141 just contacts the fitting portion 151, this state is defined as the initial state. In the initial state, there is a gap between the liquid storage box valve core 132 and the water purification tank valve core 142, or the liquid storage box valve core 132 and the water purification tank valve core 142 are in contact with each other and do not transmit force to each other.

[0078] The liquid storage box 110 is provided with a liquid storage box connecting pipe 111 communicating with the inner cavity of the liquid storage box 110, and the water purification tank 120 is provided with a water purification tank connecting seat 121 communicating with the inner cavity of the water purification tank 120. When the water purification tank connecting seat 121 is inserted into the liquid storage box connecting pipe 111 and the liquid storage box valve assembly 130 and the water purification tank valve assembly 140 are opened, the communication between the liquid storage box 110 and the water purification tank 120 can be achieved.

[0079] Further, one end of the sealing ring 150 is sealingly fitted to the liquid storage box connecting pipe 111, and a fitting portion 151 is provided at the other end. The fitting portion 151 is movably sleeved on the outer periphery of the liquid storage box valve core 132. The fitting portion 151 can move relative to the liquid storage box valve core 132 in the first direction F or in the second direction S. The setting position of the water purification tank valve seat 141 corresponds to the setting position of the fitting portion 151. When the water purification tank connecting seat 121 is inserted into the liquid storage box connecting pipe 111 and the water purification tank valve seat 141 just contacts the fitting portion 151, there is a gap between the liquid storage box valve core 132 and the water purification tank valve core 142, or the liquid storage box valve core 132 and the water purification tank valve core 142 are in contact with each other and do not transmit force to each other.

[0080] With such arrangement, since one end of the sealing ring 150 is sealed with the liquid storage box connecting pipe 111, when the clean water tank connecting seat 121 is inserted into the liquid storage box connecting pipe 111, the clean water tank valve seat 141 just contacts the matching portion 151 and forms a seal with the matching portion 151. At this time, there is a gap between the liquid storage box valve core 132 and the clean water tank valve core 142, and there is no contact between the two, or the liquid storage box valve core 132 and the clean water tank valve core 142 are in contact with each other and do not transmit force to each other. In this way, the liquid storage box valve assembly 130 and the clean water tank valve assembly 140 are both in a closed state. With the clean water tank connecting seat 121 As the insertion goes deeper, the fitting part 151 is pushed by the clean water tank valve seat 141 to move in the insertion direction relative to the liquid storage box valve core 132 and undergoes elastic deformation, so that the clean water tank valve seat 141 and the fitting part 151 are tightly pressed against each other and always maintain a sealed state. During this process, no matter whether the liquid storage box valve assembly 130 and the clean water tank valve assembly 140 are opened or not, the water in the liquid storage box valve assembly 130 and the clean water tank valve assembly 140 cannot leak out from the junction between the fitting part 151 and the clean water tank valve seat 141. Therefore, during the entire insertion process of the clean water tank connecting seat 121, no water leakage will occur.

[0081] When the clean water tank connecting seat 121 is separated from the liquid storage box connecting pipe 111, contrary to the above process, as the clean water tank connecting seat 121 is pulled out, the clean water tank valve core 142 and the liquid storage box valve core 132 will first break contact, so that the clean water tank valve assembly 140 and the liquid storage box valve assembly 130 are closed respectively. Of course, as the clean water tank valve seat 141 continues to move along the second direction S, the pressure on the matching portion 151 gradually decreases. Before the clean water tank valve seat 141 leaves the matching portion 151, the clean water tank valve seat 141 is in the elastic reset process, so it is always pressed against the matching portion 151 to maintain the sealing matching relationship between the two. In this process, no matter the liquid storage box valve assembly No matter what the closing order of the liquid storage box valve assembly 130 and the clean water tank valve assembly 140 is, during the entire closing process of the liquid storage box valve assembly 130 and the clean water tank valve assembly 140, the water in the liquid storage box valve assembly 130 and the clean water tank valve assembly 140 cannot leak out from the intersection between the matching part 151 and the clean water tank valve seat 141. In other words, after the liquid storage box valve assembly 130 and the clean water tank valve assembly 140 are closed, the clean water tank valve seat 141 and the liquid storage box valve seat 131 will be out of contact and the sealing state will be released. This is compared with the situation in the related art that water always flows out during the closing process of the liquid storage box valve assembly 130 and the clean water tank valve assembly 140, which greatly improves the water leakage during the pull-out process.

[0082] In the present application, continue to refer to Figure 3, the liquid storage box valve assembly 130 further includes a liquid storage box valve seat 131. The liquid storage box valve core 132 is inserted through the liquid storage box valve seat 131. The liquid storage box valve seat 131 is connected inside the liquid storage box connecting pipe 111. The liquid storage box valve core 132 can move relative to the liquid storage box valve seat 131 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 1311 of the liquid storage box valve seat. The first direction F is the direction in which the water purification tank connecting seat 121 is inserted into the liquid storage box connecting pipe 111 and is parallel to the length direction of the liquid storage box connecting pipe 111.

[0083] Further, the water purification tank valve core 142 can move relative to the water purification tank valve seat 141 along the second direction S, or elastically reset along the first direction F to open or close the valve hole 1411 of the water purification tank valve seat.

[0084] Connected inside the liquid storage box connecting pipe 111 through the liquid storage box valve seat 131, the liquid storage box valve core 132 can move relative to the liquid storage box valve seat 131 along the first direction F to open the valve hole 1311 of the liquid storage box valve seat. And the water purification tank valve seat 141 is connected inside the water purification tank connecting seat 121. The water purification tank valve core 142 can move relative to the water purification tank valve seat 141 along the second direction S to open the valve hole 1411 of the water purification tank valve seat. Also, due to the corresponding arrangement positions of the water purification tank valve core 142 and the liquid storage box valve core 132, with such an arrangement, when the water purification tank connecting seat 121 is inserted into the liquid storage box connecting pipe 111, the liquid storage box valve assembly 130 and the water purification tank valve assembly 140 interact, enabling the water purification tank valve core 142 and the liquid storage box valve core 132 to move along the second direction S and the first direction F respectively to open the valve hole 1411 of the water purification tank valve seat and the valve hole 1311 of the liquid storage box valve seat, so that both the water purification tank valve assembly 140 and the liquid storage box valve assembly 130 are in an open state.

[0085] Since the liquid storage box valve core 132 can elastically reset along the second direction S to close the valve hole 1311 of the liquid storage box valve seat, and the water purification tank valve core 142 can elastically reset along the first direction F to close the valve hole 1411 of the water purification tank valve seat, with such an arrangement, when the water purification tank connecting seat 121 disengages from the liquid storage box connecting pipe 111, both the water purification tank valve core 142 and the liquid storage box valve core 132 perform elastic reset to close both the valve hole 1411 of the water purification tank valve seat and the valve hole 1311 of the liquid storage box valve seat, thus making both the liquid storage box valve assembly 130 and the water purification tank valve assembly 140 in a closed state.

[0086] In the embodiment of the present application, the mating part is in clearance fit with the liquid storage box valve core 132.

[0087] In the embodiment of the present application, continue to refer to Figure 4, the liquid storage box valve core 132 includes a liquid storage box valve core main body 1321 and a plurality of liquid storage box ribs 1322. The plurality of liquid storage box ribs 1322 are arranged at intervals and around the outer peripheral surface of the liquid storage box valve core main body 1321. The fitting portion 151 is configured as an annular member and sleeved on the outer peripheral side of each liquid storage box rib 1322, and is in clearance fit with the outer peripheral side of each liquid storage box rib 1322. The inner diameter of the fitting portion 151 is less than 7 mm. With such a setting, a sealed water film can be formed between the inner wall of the fitting portion 151 and the liquid storage box valve core 132 (forming a cross-section). With such a setting, since the outer end of the sealing ring 150 is in sealed cooperation with the inner wall of the liquid storage box connecting pipe 111, and a sealed water film is formed between the fitting portion 151 at the inner end of the sealing ring 150 and the liquid storage box valve core 132, no matter whether the water tank connecting seat 121 is inserted or pulled out, after the water tank valve seat 141 and the fitting portion 151 are separated from contact, the fitting portion 151 will form a seal with the liquid storage box valve core 132 to prevent the water in the liquid storage box valve assembly 130 from leaking. Thus, no water leakage will occur during the entire pulling-out process of the water tank connecting seat 121.

[0088] Further, the liquid storage box connecting pipe 111, the liquid storage box valve core 132, and the sealing ring 80 together form a receiving space C. The sealing ring 80 is configured as an elastic member, and the fitting portion 81 can move in the first direction or elastically reset in the second direction under the drive of the water tank valve seat 141, so that the volume of the receiving space C becomes smaller or larger.

[0089] With such a setting, when the water tank connecting seat 121 is inserted into the liquid storage box connecting pipe 111, the stale water stored in the receiving space C can be squeezed out to prevent bacteria from breeding here after a long time of use. When the water tank connecting seat 121 is inserted into the liquid storage box connecting pipe 111 and is in place, the water tank valve seat 141 presses the fitting portion 151 to the position closest to the liquid storage box 110, and at this time, the volume of the receiving space C is the smallest.

[0090] In the embodiment of the present application, continue to refer to Figure 3 and Figure 4 , the sealing ring 150 includes an annular main body portion 152 and a necking portion 153. The necking portion 153 and the fitting portion 151 surround the outside of the liquid storage box valve core 132. One end of the necking portion 153 is connected to the main body portion 152, and the other end is connected to the fitting portion 151. The necking portion 153 is configured as an elastic member. With such a setting, when an external force acts on the fitting portion 151, since the necking portion 153 is an elastic member, the fitting portion 151 can move relative to the liquid storage box valve core 132 in the first direction F or elastically reset in the second direction S. Specifically, the sealing ring 150 can be made of a material with elastic resilience such as rubber or silica gel.

[0091] Specifically, it can be as Figure 3As shown, both the necking part 153 and the mating part 151 are located inside the main body part 152. Alternatively, the main body part 152, the necking part 153, and the mating part 151 may be arranged in sequence along the second direction S.

[0092] Furthermore, an outwardly turned-over sealing ring flanging part 1521 is provided at the end of the main body part 152 facing away from the necking part 153. The outer peripheral surface of the main body part 152 abuts against the inner wall of the liquid storage box connecting pipe 111, and the sealing ring flanging part 1521 is sleeved on the end of the liquid storage box connecting pipe 111 facing away from the liquid storage box 110. In this way, a good seal is formed between the sealing ring flanging part 1521 and the inner wall of the liquid storage box connecting pipe 111. At the same time, the sealing ring 150 can be installed on the liquid storage box connecting pipe 111 through the installation space formed between the sealing ring flanging part 1521 and the main body part 152.

[0093] In addition, the water purifier 100 further includes a cylindrical installation cover 160. An inwardly turned-over installation cover flanging part 161 is provided at the end of the installation cover 160, and the installation cover flanging part 161 presses the sealing ring flanging part 1521 tightly against the end of the liquid storage box connecting pipe 111 facing away from the liquid storage box 110. With such a setting, the sealing ring 150 can be reliably fixed on the liquid storage box connecting pipe 111.

[0094] In the embodiment of the present application, the inner diameter of the mating part 151 is less than or equal to the inner diameter of the water purification tank valve seat 141, and the projections of the opposite surfaces of the mating part 151 and the water purification tank valve seat 141 on the plane perpendicular to the first direction F have an overlapping part. With such a setting, it is convenient for the water purification tank valve seat 141 to smoothly press against the mating part 151 and move in the first direction F.

[0095] Furthermore, the outer diameter of the water purification tank connecting seat 121 is less than the inner diameter of the main body part 152. An annular protruding part 1522 is provided inside the main body part 152. When the water purification tank connecting seat 121 is inserted into the liquid storage box connecting pipe 111, the protruding part 1522 presses against the outer wall of the water purification tank connecting seat 121. With such a setting, it is also convenient for the water purification tank connecting seat 121 to be smoothly inserted into the liquid storage box connecting pipe 111. The protruding part 1522 presses against the outer wall of the water purification tank connecting seat 121. On the one hand, it makes the insertion operation more tactile. On the other hand, it is convenient for the water purification tank connecting seat 121 to form a seal with the sealing ring 150 and prevent the water purification tank connecting seat 121 from withdrawing from the liquid storage box connecting pipe 111.

[0096] Furthermore, continue to refer to Figure 3 、 Figure 5 and Figure 6 . The opposite surfaces of the mating part 151 and the water purification tank valve seat 141 are respectively defined as the first surface 1511 and the second surface 1512. In the initial state, the end of the liquid storage box valve core 132 facing away from the inner cavity of the liquid storage box 110 protrudes from the first surface 1511.

[0097] The distance D1 between the end face of the liquid storage box valve core 132 facing the water purification tank valve core 142 and the first surface 1511, and the distance D2 between the end face of the water purification tank valve core 142 facing the liquid storage box valve core 132 and the second surface 1512 satisfy: D1 < D2. With such a setting, when the first surface 1511 and the second surface 1512 are in contact, there is still a gap between the liquid storage box valve core 132 and the water purification tank valve core 142, ensuring that when the water purification tank connecting seat 121 is inserted, the mating part 151 and the water purification tank valve seat 141 come into contact first to form a seal, and then the liquid storage box valve assembly 130 and the water purification tank valve assembly 140 are opened. At the same time, when the water purification tank connecting seat 121 is pulled out, after the liquid storage box valve assembly 130 and the water purification tank valve assembly 140 are both closed, the mating part 151 and the water purification tank valve seat 141 are disengaged from contact.

[0098] Further, the end face of the mating part 151 facing away from the first surface 1511 is defined as the third surface 1513. A liquid storage box step portion 1323 with a partial protrusion is provided between the two ends of the liquid storage box valve core 132, and the liquid storage box step portion 1323 blocks the moving path of the mating part 151 in the first direction F.

[0099] The liquid storage box step portion 1323 includes a first step surface 1324 extending radially along the liquid storage box valve core 132. The first step surface 1324 is disposed opposite to the third surface 1513. The distance D3 between the end face of the liquid storage box valve core 132 facing the water purification tank valve core 142 and the first step surface 1324 and the thickness dimension D4 of the mating part 151 in the first direction F satisfy: D3 > D4.

[0100] With such a setting, during the insertion of the water purification tank connecting seat 121, after the water purification tank valve seat 141 contacts the sealing ring 150 and the sealing ring 150 is pressed and deformed, when the water purification tank valve core 142 contacts the liquid storage box valve core 132, the water purification tank valve core 142 is opened. As the water purification tank connecting seat 121 is further inserted, the water purification tank valve seat 141 can press the mating part 151 to move relative to the liquid storage box valve core 132 in the first direction F until the third surface 1513 contacts the first step surface 1324. The water purification tank valve seat 141 continues to move forward in the first direction F by pushing against the liquid storage box step portion 1323 through the mating part 151, driving the liquid storage box valve core 132 to move in the first direction F to open the valve hole 1311 of the liquid storage box valve seat.

[0101] In the embodiment of the present application, continue to refer to Figure 4 , the liquid storage box valve seat 131 includes a liquid storage box valve seat main body 133. The liquid storage box valve seat main body 133 is configured with a first accommodating cavity with openings at both ends, and the opening facing the inner cavity of the liquid storage box forms the valve hole 1311 of the liquid storage box valve seat.

[0102] The liquid storage box valve core 132 penetrates through the first accommodation cavity, is in guiding cooperation with the cavity wall of the first accommodation cavity, and the liquid storage box sealing end 134 of the liquid storage box valve core 132 enters the inner cavity of the liquid storage box 110 through the valve hole 1311 of the liquid storage box valve seat. A first seal 135 may also be provided on the liquid storage box sealing end 134 of the liquid storage box valve core 132 for forming a sealing fit with the valve hole 1311 of the liquid storage box valve seat when contacting the valve hole 1311 of the liquid storage box valve seat.

[0103] Further, referring to Figure 4 and Figure 5 , the liquid storage box valve assembly 130 further includes a liquid storage box elastic member 136. The liquid storage box elastic member 136 is disposed between the inner wall of the liquid storage box valve seat 131 and the liquid storage box valve core 132 for always applying an elastic force towards the second direction S to the liquid storage box valve core 132. In this way, the elastic reset of the liquid storage box valve core 132 can be realized.

[0104] Further, referring to Figure 6 , at least one second step portion 137 is provided on the outer surface of the liquid storage box valve core 132. The two ends of the liquid storage box elastic member 136 are respectively pressed between the inner wall of the liquid storage box valve seat 131 and at least one second step portion 137. In this way, the liquid storage box elastic member 136 can be simply positioned by sleeving on the liquid storage box valve core 132 and the two ends are respectively abutted between the inner wall of the liquid storage box valve seat 131 and the second step portion 137.

[0105] Continuing to refer to Figure 5 , the water purification tank valve seat 141 includes a water purification tank valve seat main body 143. The water purification tank valve seat main body 143 is configured with a second accommodation cavity with two open ends. The opening facing away from the inner cavity of the water purification tank 120 forms the valve hole 1411 of the water purification tank valve seat.

[0106] The water purification tank valve core 142 penetrates through the second accommodation cavity, is in guiding cooperation with the cavity wall of the second accommodation cavity, and the water purification tank sealing end 144 of the water purification tank valve core 142 seals the valve hole 1411 of the water purification tank valve seat when moving along the first direction F. A ring-shaped protrusion 1441 is provided outside the water purification tank sealing end 144. When the water purification tank valve core 142 moves to the position where the ring-shaped protrusion 1441 is outside the hole wall of the valve hole 1411 of the water purification tank valve seat, as Figure 6 shown, the water purification tank valve assembly 140 is opened.

[0107] In specific implementation, the water purification tank valve seat main body 143 may include two bases 145 and a plurality of connecting ribs 146 connected between the two bases 145. The second accommodation cavity is defined between the base 145 and the plurality of connecting ribs 146.

[0108] Further, referring to Figure 5 and Figure 6, the water purification tank valve assembly 140 further includes a water purification tank elastic member 147. The water purification tank elastic member 147 is disposed between the inner wall of the water purification tank valve seat 141 and the water purification tank plugging end 144 of the water purification tank valve core 142, so as to always apply an elastic force towards the first direction F to the water purification tank valve core 142. The elastic coefficient of the water purification tank elastic member 147 is smaller than that of the liquid storage box elastic member 136. The setting of the water purification tank elastic member 147 can realize the elastic reset of the water purification tank valve core 142.

[0109] In addition, the elastic coefficient of the water purification tank elastic member 147 is smaller than that of the liquid storage box elastic member 136. In this way, during the insertion process of the water purification tank connecting seat 121, when the water purification tank valve core 142 abuts against the liquid storage box valve core 132, the displacement of the water purification tank valve core 142 is greater than that of the liquid storage box valve core 132, so that the water purification tank valve assembly 140 opens earlier than the liquid storage box valve assembly 130. During the pulling-out process of the water purification tank connecting seat 121, the closing moment of the water purification tank valve assembly 140 is later than that of the liquid storage box valve assembly 130, so it closes later.

[0110] Furthermore, an installation cavity 122 communicating with the inner cavity of the water purification tank 120 is formed on the outer wall of the water purification tank 120. The water purification tank connecting seat 121 is installed in the installation cavity 122. Outside the installation cavity 122, an avoidance cavity 123 surrounding the installation cavity 122 is also formed. The avoidance cavity 123 can be inserted into by the liquid storage box connecting pipe 111.

[0111] In the embodiment of the present application, the liquid storage box 110 communicates with the atmosphere, and a water level sensor for detecting the water level is provided in the liquid storage box 110. In this way, when the liquid storage box 110 communicates with the water purification tank 120, the water level in the water purification tank 120 can be reflected by the water level in the liquid storage box 110.

[0112] The following combines Figure 3 and Figure 6 to illustrate the insertion and extraction process of the water purification tank 120 and the liquid storage box 110 in the water purifier 100 according to the embodiment of the present application.

[0113] Figure 3 As shown in the initial state, when the water purification tank connecting seat 121 is inserted into the liquid storage box connecting pipe 111, at this time, the liquid storage box valve assembly 130 and the water purification tank valve assembly 140 are still in the closed state. The second surface 1512 of the water purification tank valve seat 141 just contacts the first surface 1511 of the mating portion 151. At this time, there is a gap between the liquid storage box valve core 132 and the water purification tank valve core 142 and they do not contact. The second surface 1512 of the water purification tank valve seat 141 and the first surface 1511 of the mating portion 151 contact to form a seal, and the water in both the liquid storage box valve assembly 130 and the water purification tank valve assembly 140 cannot leak out.

[0114] When the water purification tank connection seat 121 is further inserted into the liquid storage box connecting pipe 111 along the first direction F, the liquid storage box valve core 132 and the water purification tank valve core 142 come into contact. Since the elastic coefficient of the liquid storage box elastic member 136 is greater than that of the water purification tank elastic member 147, the water purification tank valve core 142 is pushed open by the liquid storage box valve core 132, causing the water purification tank valve assembly 140 to open. During this process, since the second surface 1512 of the water purification tank valve seat 141 is always in contact with the first surface 1511 of the mating portion 151 to form a seal, water will not leak out between the water purification tank valve seat 141 and the mating portion 151.

[0115] Referring to Figure 6 , when the water purification tank connection seat 121 is further inserted into the liquid storage box connecting pipe 111 along the first direction F, the water purification tank valve seat 141 drives the mating portion 151 to move in the first direction F. While causing the mating portion 151 to undergo elastic deformation, the mating portion 151 presses against the liquid storage box step portion 1323 and drives the liquid storage box valve core 132 to also move in the first direction F, overcoming the elastic force of the liquid storage box elastic member 136, causing the liquid storage box valve core 132 to be pushed open, and causing the liquid storage box valve assembly 130 to also open. At this time, since both the liquid storage box valve assembly 130 and the water purification tank valve assembly 140 are open, the water flow between the water purification tank 120 and the communicating vessel is realized. In Figure 6 , the second step portion 137 on the liquid storage box valve core 132 abuts against the periphery of the valve hole 1311 of the liquid storage box valve seat, preventing the liquid storage box valve seat 131 from continuing to move in the first direction F. It should be noted that at this time, since there is water on both sides of the mating portion 151, even if a water film is formed between the mating portion 151 and the liquid storage box valve core 132, it will not affect the connectivity of the liquid storage box valve assembly 130 and the water purification tank valve assembly 140.

[0116] It can be understood that since the second surface 1512 of the water purification tank valve seat 141 is always in contact with the first surface 1511 of the mating portion 151 to form a seal, water will not leak out between the water purification tank valve seat 141 and the mating portion 151. During this process, the outer wall of the water purification tank connection seat 121 is always in interference fit with the protrusion portion 1522, which can prevent the water purification tank connection seat 121 from withdrawing from the liquid storage box connecting pipe 111 in the second direction S, and further prevent water from leaking out.

[0117] Contrary to the insertion process, when the water purification tank 120 is pulled out, as the water purification tank valve seat 141 withdraws in the second direction S, the liquid storage box elastic member 136 elastically resets, and the liquid storage box valve core 132 gradually moves in the second direction S, first closing the liquid storage box valve assembly 130. At this time, after the third surface 1513 of the mating portion 151 disengages from the second step portion 137, the water purification tank valve seat 141 no longer applies a pressing force to the liquid storage box valve core 132 through the mating portion 151.

[0118] In addition, the water purification tank connection seat 121 continues to withdraw. Since there is no pressing force from the water purification tank valve seat 141, the engaging portion 151 gradually returns elastically. During this process, the water purification tank elastic member 147 also gradually returns elastically to close the water purification tank valve assembly 140. After the water purification tank valve assembly 140 is completely closed, the water purification tank connection seat 121 continues to withdraw. During this process, the surface of the liquid storage box 110 of the engaging portion 151 is always in contact and sealed with the surface of the water purification tank 120 of the water purification tank valve seat 141, and no water leakage will occur. Of course, during this process, since a water film is formed between the inner wall of the engaging portion 151 and the liquid storage box valve core 132, during the reset process, the water on one side of the liquid storage box valve assembly 130 is stored in the space defined by the sealing ring 150 and the liquid storage box valve seat 131 and will not leak out. When the water purification tank 120 is further pulled out, the engaging portion 151 and the water purification tank valve seat 141 are disengaged from contact.

[0119] Figure 7 FIG. [Reference numeral not provided] is a schematic diagram of another structure of the liquid storage box valve core in the water purifier provided by the embodiment of the present application. Figure 8 FIG. [Reference numeral not provided] is a schematic diagram of another structure of the liquid storage box valve assembly in the water purifier provided by the embodiment of the present application.

[0120] In the embodiment of the present application, on the basis of the above embodiment, the structure of the liquid storage box valve assembly 130 is improved, and the remaining structures are similar to those described above and will not be repeated here.

[0121] Refer to Figure 7 and Figure 8 , the liquid storage box connecting pipe 111, the liquid storage box valve core 132 and the sealing ring 150 together form an accommodation space C, and the accommodation space C is communicated with the liquid storage box 110, that is, the inner cavity of the communicating vessel 10 when the liquid storage box valve assembly 130 is opened. Thus, when the water purification tank connection seat 121 is not inserted into the liquid storage box connecting pipe 111, water can be temporarily stored in the accommodation space C without leaking out.

[0122] Furthermore, a plugging member 321 is provided on the liquid storage box valve core 132, and the plugging member 321 is used for plugging and cooperating with the engaging portion 151 to seal the accommodation space C. Thus, when the water purification tank connection seat 121 is not inserted into the liquid storage box connecting pipe 111, it can better prevent water from leaking out of the sealed accommodation space C.

[0123] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0124] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A water purifier, characterized in that, It includes a liquid storage box (110), a clean water tank (120), a liquid storage box valve assembly (130) and a clean water tank valve assembly (140); The liquid storage box (110) is provided with a liquid storage box connecting pipe (111) communicating with the inner cavity of the liquid storage box (110); the clean water tank (120) is provided with a clean water tank connecting seat (121) communicating with the inner cavity of the clean water tank (120); The liquid storage box valve assembly (130) includes a sealing ring (150) and a liquid storage box valve core (132) that reciprocates along the length direction of the liquid storage box connecting pipe (111) to open and close the liquid storage box connecting pipe (111). The clean water tank valve assembly (140) includes the clean water tank valve seat (141) and a clean water tank valve core (142) provided on the clean water tank valve seat (141). The clean water tank valve core (142) reciprocates along the length direction of the clean water tank connecting seat (121) to open and close the clean water tank connecting seat (121); One end of the sealing ring (150) is sealingly fitted to the liquid storage box connecting pipe (111), and the other end is provided with a fitting portion (151). The fitting portion (151) is movably sleeved on the outer periphery of the liquid storage box valve core (132); The setting position of the clean water tank valve seat (141) corresponds to the setting position of the fitting portion (151), and the setting position of the clean water tank valve core (142) corresponds to the setting position of the liquid storage box valve core (132). When the clean water tank connecting seat (121) is located in the liquid storage box connecting pipe (111), the state where the clean water tank valve seat (141) just contacts the fitting portion (151) is defined as the initial state. In the initial state, there is a gap between the liquid storage box valve core (132) and the clean water tank valve core (142), or the liquid storage box valve core (132) and the clean water tank valve core (142) are in contact with each other and do not transmit force to each other.

2. The water purifier according to claim 1, wherein, The liquid storage box valve assembly (130) further includes a liquid storage box valve seat (131). The liquid storage box valve core (132) passes through the liquid storage box valve seat (131). The liquid storage box valve seat (131) is connected inside the liquid storage box connecting pipe (111). The liquid storage box valve core (132) can move relative to the liquid storage box valve seat (131) along a first direction (F), or elastically reset along a second direction (S) opposite to the first direction (F) to open or close the valve hole (1311) of the liquid storage box valve seat; the first direction (F) is the direction in which the clean water tank connecting seat (121) is inserted into the liquid storage box connecting pipe (111), and is parallel to the length direction of the liquid storage box connecting pipe (111).

3. The water purifier according to claim 2, wherein The clean water tank valve core (142) can move relative to the clean water tank valve seat (141) in the second direction (S), or elastically reset in the first direction (F) to open or close the valve hole (1411) of the clean water tank valve seat.

4. The water purifier according to claim 2, characterized in that, The fitting portion (151) is in clearance fit with the liquid storage box valve core (132).

5. The water purifier according to claim 4, characterized in that, The liquid storage cartridge valve core (132) includes a liquid storage cartridge valve core body (1321) and a plurality of liquid storage cartridge ribs (1322). The plurality of liquid storage cartridge ribs (1322) are arranged at intervals and around the outer peripheral surface of the liquid storage cartridge valve core body (1321). The fitting portion (151) is configured as an annular member and sleeved on the outer peripheral side of each liquid storage cartridge rib (1322), and is in clearance fit with the outer peripheral side of each liquid storage cartridge rib (1322). The inner diameter of the fitting portion (151) is less than 7 mm.

6. The water purifier according to claim 2, characterized in that, The liquid storage cartridge connecting pipe (111), the liquid storage cartridge valve core (132), and the sealing ring (150) together form an accommodation space (C); The sealing ring (150) is configured as an elastic member. The fitting portion (151) can move in a first direction under the drive of the water purification tank valve seat (141), or elastically reset in a second direction, so that the volume of the accommodation space (C) becomes smaller or larger. Preferably, the sealing ring (150) includes an annular main body portion (152) and a necking portion (153). Both the necking portion (153) and the fitting portion (151) are disposed around the outside of the liquid storage cartridge valve core (132). One end of the necking portion (153) is connected to the main body portion (152), and the other end is connected to the fitting portion (151). Preferably, both the necking portion (83) and the fitting portion (151) are located inside the main body portion (82); or The main body portion (82), the necking portion (83), and the fitting portion (151) are arranged in sequence along the second direction (S). Preferably, an outwardly turned sealing ring flange portion (1521) is provided at the end of the main body portion (152) facing away from the necking portion (153). The outer peripheral surface of the main body portion (152) abuts against the inner wall of the liquid storage cartridge connecting pipe (111), and the sealing ring flange portion (1521) is sleeved on the end of the liquid storage cartridge connecting pipe (111) facing away from the liquid storage cartridge (110). Preferably, the water purifier (100) further includes a cylindrical mounting cover (160). An inwardly turned mounting cover flange portion (161) is provided at the end of the mounting cover (160). The mounting cover flange portion (161) presses the sealing ring flange portion (1521) tightly against the end of the liquid storage cartridge connecting pipe (111) facing away from the liquid storage cartridge (110). Preferably, the inner diameter of the fitting portion (151) is less than or equal to the inner diameter of the water purification tank valve seat (141); And the projections of the mutually facing surfaces of the fitting portion (151) and the water purification tank valve seat (141) on a plane perpendicular to the first direction (F) have an overlapping portion. Preferably, the outer diameter of the water purification tank connecting seat (121) is less than the inner diameter of the main body portion (152); A ring-shaped protrusion portion (1522) is provided on the inner part of the main body portion (152). When the water purification tank connecting seat (121) is inserted into the liquid storage cartridge connecting pipe (111), the protrusion portion (1522) abuts against the outer wall of the water purification tank connecting seat (121). Preferably, the opposite surfaces of the mating part (151) and the water purification tank valve seat (141) are respectively defined as a first surface (1511) and a second surface (1512); In the initial state, the end of the liquid storage cartridge valve core (132) facing away from the inner cavity of the liquid storage cartridge (110) protrudes from the first surface (1511); The distance D1 between the end face of the liquid storage cartridge valve core (132) facing the water purification tank valve core (142) and the first surface (1511), and the distance D2 between the end face of the water purification tank valve core (142) facing the liquid storage cartridge valve core (132) and the second surface (1512) satisfy: D1 < D2. Preferably, the end face of the mating part (151) facing away from the first surface (1511) is defined as a third surface (1513); A locally protruding liquid storage cartridge step portion (1323) is provided between the two ends of the liquid storage cartridge valve core (132), and the liquid storage cartridge step portion (1323) is used to block the movement path of the mating part (151) along the first direction (F); The liquid storage cartridge step portion (1323) includes a first step surface (1324) extending radially along the liquid storage cartridge valve core (132), and the first step surface (1324) is arranged opposite to the third surface (1513); The distance D3 between the end face of the liquid storage cartridge valve core (132) facing the water purification tank valve core (142) and the first step surface (1324) and the thickness dimension D4 of the mating part (151) along the first direction (F) satisfy: D3 > D4.

7. The water purifier according to any one of claims 2-6, characterized in that, The liquid storage cartridge valve seat (131) includes a liquid storage cartridge valve seat main body (133), and the liquid storage cartridge valve seat main body (133) is configured with a first accommodation cavity having openings at both ends. The opening facing the inner cavity of the liquid storage cartridge (110) forms a valve hole (1311) of the liquid storage cartridge valve seat; The liquid storage cartridge valve core (132) penetrates through the first accommodation cavity and is in guiding cooperation with the cavity wall of the first accommodation cavity, and the liquid storage cartridge blocking end (134) of the liquid storage cartridge valve core (132) enters the inner cavity of the liquid storage cartridge (110) through the valve hole (1311) of the liquid storage cartridge valve seat. Preferably, the liquid storage cartridge valve assembly (130) further includes a liquid storage cartridge elastic member (136), and the liquid storage cartridge elastic member (136) is disposed between the inner wall of the liquid storage cartridge valve seat (131) and the liquid storage cartridge valve core (132) to always apply an elastic force towards the second direction (S) to the liquid storage cartridge valve core (132). Preferably, at least one second step portion (137) is provided on the outer surface of the liquid storage cartridge valve core (132), and both ends of the liquid storage cartridge elastic member (136) are respectively pressed between the inner wall of the liquid storage cartridge valve seat (131) and the at least one second step portion (137).

8. The water purifier according to any one of claims 2-6, characterized in that, The water purification tank valve seat (141) includes a water purification tank valve seat body (143). The water purification tank valve seat body (143) is configured with a second accommodation cavity having openings at both ends. The opening facing the inner cavity of the water purification tank (120) forms a valve hole (1411) of the water purification tank valve seat; The water purification tank valve core (142) penetrates through the second accommodation cavity and is in guiding cooperation with the cavity wall of the second accommodation cavity. When the water purification end (144) of the water purification tank valve core (142) moves along the first direction (F), it seals the valve hole (1411) of the water purification tank valve seat. Preferably, the water purification tank valve assembly (140) further includes a water purification tank elastic member (147). The water purification tank elastic member (147) is disposed between the inner wall of the water purification tank valve seat (141) and the water purification end (144) of the water purification tank valve core (142) to always apply an elastic force towards the first direction (F) to the water purification tank valve core (142); The liquid storage box valve assembly (130) further includes a liquid storage box elastic member (136). The liquid storage box elastic member (136) is disposed between the inner wall of the liquid storage box valve seat (131) and the liquid storage box valve core (132) to always apply an elastic force towards the second direction (S) to the liquid storage box valve core (132); The elastic coefficient of the water purification tank elastic member (147) is less than the elastic coefficient of the liquid storage box elastic member (136). Preferably, an installation cavity (122) communicating with the inner cavity of the water purification tank (120) is formed on the outer wall of the water purification tank (120), and the water purification tank connection seat (121) is installed in the installation cavity (122).

9. The water purifier according to any one of claims 1-6, characterized in that, The liquid storage box (110) communicates with the atmosphere, and a water level sensor for detecting the water level is provided in the liquid storage box (110).

10. The water purifier according to any one of claims 1-6, characterized in that, The liquid storage box connecting pipe (111), the liquid storage box valve core (132), and the sealing ring (150) together form an accommodation space (C). The accommodation space (C) communicates with the inner cavity of the liquid storage box (110) when the liquid storage box valve assembly (130) is opened. Preferably, a blocking member (321) is provided on the liquid storage box valve core (132). The blocking member (321) is used for blocking cooperation with the mating portion (151) to seal the accommodation space (C).

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