Air intake and exhaust filtering device and water purifier comprising same

Abstract

The utility model provides an intake and exhaust filtering device and a water purifier comprising the same. The air inlet and outlet filtering device comprises a main body, an air inlet cavity and an air outlet cavity which are not communicated with each other are formed in the main body, and an air inlet used for being communicated with the air inlet cavity and an air outlet used for being communicated with the air outlet cavity are formed in the wall face of the main body. A ventilation pipeline is arranged at the bottom of the main body and is communicated with a water tank of the water purifier. The intake and exhaust filtering device is provided with an intake flow path and an exhaust flow path which are not communicated at the same time. The air inlet flow path is configured to be in a communication state when water flows out of the water tank, so that external air enters the air inlet cavity from the air inlet and enters the ventilation pipeline through the air inlet cavity; the exhaust flow path is configured to be in a communication state when water enters the water tank, so that water vapor from the water tank enters the air outlet cavity from the ventilation pipeline and is exhausted from the air outlet through the air outlet cavity. The intake and exhaust filtering device can achieve the effects of water-gas separation and bacterium breeding prevention.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household appliances, especially to an air inlet and exhaust filtering device and a water purifier comprising the same. BACKGROUND

[0002] As a kind of household appliance, water purifier is a kind of water purification product, impurities in tap water are filtered by filter element, and clean water is obtained. Limited by booster pump and filter membrane, the clean water outlet flow of general water purifier will not be very large. The current mainstream water purifier, outlet flow is generally within 2L / min. In order to provide better water experience for users, a kind of water purifier is provided with a water tank in the water purifier, the clean water produced is stored in the water tank, and the water is pumped by high-flow water pump to realize large-flow water outlet.

[0003] The water tank generally comprises an air port communicating with the outside, and the internal air communicates with the outside during the water inlet and outlet process, to ensure smooth water inlet and outlet. However, when the air port communicates with the outside, dust, bacteria and other impurities in the external air will enter the water tank, polluting the water inside the water tank. Especially for under-kitchen water purification products, the under-kitchen harsh environment can cause bacteria breeding in the water tank, or the odor in the under-kitchen air enters the water tank, causing the water outlet to have odor.

[0004] Currently, some products are provided with filtering devices, such as PP cotton, etc. However, the current scheme generally only provides filtering devices, which can block some impurities in the external environment, but due to the communication between the humid air inside the water tank and the water vapor in the water tank, the cotton sheet itself can breed bacteria. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to overcome the defects that the water vapor in the water tank of the prior art can cause the cotton sheet of the filtering device to breed bacteria, resulting in poor water quality and odor, and to provide an air inlet and exhaust filtering device and a water purifier comprising the same.

[0006] The utility model solves the above technical problems by the following technical scheme:

[0007] An air inlet and exhaust filtering device, the water purifier comprises a water tank, the air inlet and exhaust filtering device comprises a main body, the main body is formed with air inlet cavity and air outlet cavity which do not communicate with each other, the wall surface of the main body is provided with air inlet port for communicating with the air inlet cavity and air outlet port for communicating with the air outlet cavity;

[0008] The bottom of the main body is provided with air passage, and the air passage is used for communicating with the water tank;

[0009] The air inlet and exhaust filtering device is formed with air inlet flow path and exhaust flow path which do not communicate with each other at the same time;

[0010] The air intake path is configured to be in a connected state when the water tank is discharging water, so that external gas enters the air intake chamber from the air inlet and then enters the ventilation pipe through the air intake chamber.

[0011] The exhaust flow path is configured to be in a connected state when the water tank is filled with water, so that water vapor from the water tank enters the air outlet chamber through the vent pipe and is discharged from the air outlet through the air outlet chamber.

[0012] In this design, the main body contains an air inlet chamber and an air outlet chamber. A venting pipe is located at the bottom of the main body, connecting to the water tank. This facilitates the entry of air from the venting pipe into the water tank for smooth water discharge and the expulsion of air from the water tank for smooth water intake. Furthermore, external air will not directly and for extended periods contact the water in the tank connected to the venting pipe at the bottom of the main body, ensuring water-air separation through the air intake and exhaust filtration device, thus preventing bacterial growth. The air intake path ensures that the water tank experiences external air pressure during discharge, achieving smooth water flow. The exhaust path prevents water from being obstructed by water vapor pressure during water intake, reliably enabling water to enter the tank.

[0013] Preferably, a first filter is provided inside the air intake chamber, the first filter is attached to the inner wall surface of the air intake chamber, and the first filter is located upstream of the air duct along the air intake path;

[0014] The air outlet chamber is equipped with a second filter, which is attached to the inner wall of the air outlet chamber and located downstream of the air duct along the exhaust flow path.

[0015] In this design, a first filter is installed inside the air intake chamber. This first filter purifies the external air when water is discharged from the water tank and air is introduced, preventing impurities from entering the air intake and exhaust filtration device and subsequently the water tank, thus contaminating the water. A second filter absorbs moisture from the water vapor in the water tank when water is introduced and air is exhausted, preventing corrosion and damage to other components of the water purifier. The first filter is attached to the inner wall of the air intake chamber, and the second filter is attached to the inner wall of the air outlet chamber. This arrangement reduces the space occupied by the first and second filters in the air intake and exhaust chambers, thereby increasing the amount of external air entering and the amount of water vapor leaving the water tank, thus improving the efficiency of the air intake and exhaust filtration device.

[0016] Preferably, the air intake chamber is provided with an air intake regulating component, which can switch between an open state and a closed state; when the air intake path is in a connected state, the air intake regulating component is in an open state, so that the air intake port is connected to the ventilation pipe; when the air intake path is in a disconnected state, the air intake regulating component is in a closed state, so that the air intake port is not connected to the ventilation pipe.

[0017] The air outlet chamber is equipped with an air outlet regulating component, which can switch between an open state and a closed state. When the exhaust flow path is in a connected state, the air outlet regulating component is in an open state, so that the air outlet is connected to the ventilation pipe. When the exhaust flow path is in a disconnected state, the air outlet regulating component is in a closed state, so that the air outlet is not connected to the ventilation pipe.

[0018] In this design, the intake and exhaust air regulating components are designed to ensure that the intake and exhaust air paths are independent, preventing interference and mutual influence. Both components can switch between open and closed states. This configuration maintains a balanced and stable water pressure within the tank when neither water is flowing in nor out, preventing significant water pressure fluctuations. Furthermore, it facilitates water-air separation during water inflow and outflow, preventing bacterial growth.

[0019] Preferably, both the air intake regulating assembly and the air outlet regulating assembly include a housing, a movable part, and a guide part, and the housing has an air intake end and an air outlet end along the gas flow direction;

[0020] The guide is installed at the air outlet end, and the guide is provided with a through port that communicates with the air pipe.

[0021] The movable component is movably disposed within the housing, and the movable component is movable relative to the housing between an initial position and an activated position;

[0022] When the movable part is in its initial position, it is located at the air inlet end, so that the air inlet end and the through port are not connected.

[0023] When the movable component moves relative to the housing under air pressure and is in the activated position, the air inlet and the through port are connected. In this design, the movable component can move relative to the housing under air pressure, automatically moving via air intake or exhaust to automatically switch the corresponding air intake or exhaust regulating component to the open state for water tank drainage or other purposes. This simple and reliable operation simplifies the overall structure of the air intake and exhaust filtration device. Taking water tank outlet as an example, when the water tank does not need to outlet water but needs to inhale air, the moving part is in the initial position. The moving part will block the flow path of the air inlet end of the shell, so that the air inlet end and the through port are not connected. Accordingly, the air intake path is also in a non-connected state. When water tank outlet is needed and air is inhaled, under the action of gas pressure, the moving part moves relative to the shell and can switch from the initial position to the active position. At this time, the moving part no longer blocks the flow path of the air inlet end of the shell, so that the air inlet end and the through port are connected. Accordingly, the air intake path is also in a connected state, and air can be inhaled normally to achieve water outlet from the water tank.

[0024] Preferably, the movable component includes a head and a rod connected end to end, wherein the cross-sectional dimension of the head is larger than the cross-sectional dimension of the rod;

[0025] The head is disposed at the air inlet end of the housing, and the rod extends toward the air outlet end of the housing;

[0026] The guide member has a guide hole in the middle, and the end of the rod opposite to the head is embedded in the guide hole and can move up and down in the guide hole.

[0027] In this design, the aforementioned structural configuration results in a larger head size, facilitating the sealing of the air inlet of the housing and allowing for the installation of other auxiliary structures, such as a structure to ensure a sealed connection between the head and the inner wall of the housing when the moving part is in its initial position. Furthermore, the guide hole supports and limits the rod portion of the moving part, enabling convenient and reliable maintenance of the moving part within a preset position range. Simultaneously, the guide hole guides the movement of the moving part, contributing to its stability.

[0028] Preferably, there are multiple through-holes, and the multiple through-holes are arranged around the guide hole;

[0029] And / or, the intake regulating assembly and the exhaust regulating assembly further include an elastic element, the guide hole is opened on the guide portion located in the middle of the guide element, the elastic element is sleeved on the rod portion, one end of the elastic element is sleeved on the top of the guide portion, and the other end is used to extend toward the head.

[0030] In this design, multiple through-holes are used to increase air intake and exhaust efficiency, thereby enabling the intake and exhaust filtration device to operate more efficiently and facilitating smooth and reliable water tank drainage and intake operations. The elastic element serves two purposes: firstly, when the moving part is in its initial position, the elastic element provides support to the head, ensuring the moving part reliably maintains its initial position; secondly, when the moving part switches between the initial and active positions, the elastic element provides a buffering effect, allowing stable movement. Thirdly, when the moving part needs to switch from the active position to the initial position, the elastic element provides a restoring force, allowing the moving part to automatically return to its initial position. This improves the flexibility of the intake and exhaust adjustment components and simplifies the overall structure of the intake and exhaust filtration device.

[0031] Preferably, a sealing element is provided between the head and the inner wall surface of the housing to provide a sealed connection with the housing when the movable element is in its initial position;

[0032] A sealing element is provided between the housing and the inner wall surface of the corresponding air inlet or air outlet chamber.

[0033] In this solution, the aforementioned sealing element enables the target structure to maintain a relatively sealed environment when needed, preventing air leakage from affecting the normal operation of the air intake and exhaust filtration device, and thus affecting the normal use of the water purifier.

[0034] Preferably, both the air inlet chamber and the air outlet chamber have a stepped portion at the end near the ventilation pipe;

[0035] For the air intake adjustment assembly, the guide member is supported on the stepped portion, and the air intake adjustment assembly includes a first fixing member installed in the air intake cavity. The first fixing member is installed on the inner side wall of the air intake cavity and presses against the end face of the air intake end of the housing.

[0036] And / or, for the air outlet regulating assembly, the air inlet end of the housing is supported on the stepped portion, and the air outlet regulating assembly includes a second fixing member installed in the air outlet cavity, the second fixing member extending from the top wall of the main body toward the guide member and abutting against the guide member.

[0037] In this design, the aforementioned structural configuration is adopted. The first fixing member is installed on the inner wall of the intake chamber. The cooperation between the first fixing member and the stepped portion can hold the guide member and the housing in a preset position, thereby facilitating the normal and reliable switching of the intake regulating component between the open and closed states. Correspondingly, the second fixing member is a structure extending downward from the top wall of the main body. By abutting against the guide member, the cooperation between the second fixing member and the stepped portion can also hold the guide member and the housing in a preset position, further facilitating the normal and reliable switching of the exhaust regulating component between the open and closed states.

[0038] Preferably, the air intake chamber is provided with a first filter, which is attached to the inner wall of the air intake chamber and is located upstream of the air duct along the air intake flow path; the air outlet chamber is provided with a second filter, which is attached to the inner wall of the air outlet chamber and is located downstream of the air duct along the exhaust flow path.

[0039] A first receiving area is formed between the top of the first fixing member and the wall of the air intake cavity, and the first filter extends to the first receiving area.

[0040] A second receiving area is formed between the air outlet end of the housing and the wall of the air outlet chamber, and the second filter extends into the second receiving area.

[0041] In this solution, the above-mentioned structural arrangement is adopted, with the first filter extending to the first accommodating area and the second filter extending to the second accommodating area. This allows both the first and second filter to have a large effective filtration range, thereby achieving a better filtration effect on gases or water vapor. At the same time, it prevents the first and second filter from extending into areas where filtration is not required, thus reducing costs. Consequently, it helps to achieve a balance between cost and filtration effect.

[0042] This utility model also provides a water purifier, characterized in that it includes the above-mentioned air intake and exhaust filtration device and water tank.

[0043] The positive and progressive effects of this utility model are as follows:

[0044] In this air intake and exhaust filtration device, an air intake chamber and an air exhaust chamber are formed within the main body. A venting pipe is located at the bottom of the main body, connecting to a water tank. This venting pipe facilitates the entry of gas into the water tank for smooth water discharge and the expulsion of gas from the water tank for smooth water intake. Furthermore, external gas does not directly and for extended periods contact the water in the tank connected to the venting pipe at the bottom of the main body, ensuring water-gas separation and preventing bacterial growth. The air intake path design allows the water to be pressurized by external gas during discharge, ensuring smooth water flow. The exhaust path design prevents water from being obstructed by water vapor pressure during intake, reliably enabling water to enter the tank. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the intake and exhaust filtration device according to Embodiment 1 of this utility model.

[0046] Figure 2 This is a partial internal structure diagram of the intake and exhaust filtration device of Embodiment 1 of this utility model.

[0047] Figure 3 This is a partial structural schematic diagram of the intake and exhaust filtration device of Embodiment 1 of this utility model, showing a part of the intake regulating component / exhaust regulating component.

[0048] Figure 4 This is a schematic diagram of another part of the intake and exhaust filtration device of Embodiment 1 of the present utility model, showing a part of the intake regulating component and the exhaust regulating component.

[0049] Figure 5 This is a schematic diagram of another part of the intake and exhaust filtration device of Embodiment 1 of the present invention, showing the intake regulating component and the exhaust regulating component.

[0050] Figure 6 This is a partial structural diagram of the intake regulating component of the intake and exhaust filtration device according to Embodiment 1 of this utility model.

[0051] Figure 7 This is a schematic diagram of another part of the intake regulating component of the intake and exhaust filtration device of Embodiment 1 of this utility model.

[0052] Figure 8 This is a schematic diagram of the guide component of the intake and exhaust filtration device according to Embodiment 1 of this utility model.

[0053] Figure 9 This is a schematic diagram of the moving parts of the intake and exhaust filtration device according to Embodiment 1 of this utility model.

[0054] Figure 10This is a schematic diagram of the intake and exhaust filtration device of Embodiment 2 of this utility model.

[0055] Explanation of reference numerals in the attached figures:

[0056] 1. Intake and exhaust filter devices

[0057] 10 main bodies

[0058] 101 air intake

[0059] 102 air outlet

[0060] 103 steps

[0061] 20 intake chambers

[0062] 30 air outlet chambers

[0063] 40 ventilation pipes

[0064] 401 intake pipe

[0065] 402 exhaust pipe

[0066] 403 Second partition

[0067] 50 First filter

[0068] 60 Second Filter

[0069] 70 intake adjustment assembly

[0070] 80 Exhaust Regulator

[0071] 90 housing

[0072] 100 guide components

[0073] 1001 Through-pass

[0074] 1002 guide hole

[0075] 1003 limiting groove

[0076] 1004 First partition

[0077] 1005 Guiding Department

[0078] 110 activity items

[0079] 1101 head

[0080] 1102 pole section

[0081] 1103 accommodating cavity

[0082] 120 elastic element

[0083] 130 sealing ring

[0084] 140 mounting slot

[0085] 150 First fastener

[0086] 160 Second fastener

[0087] 170 top cover

[0088] 180 First Detention Area

[0089] 190 Second Storage Area Detailed Implementation

[0090] The present invention will be described more clearly and completely below with reference to the accompanying drawings, but this does not limit the scope of the present invention to the present invention.

[0091] Example 1

[0092] like Figures 1 to 9 As shown, this embodiment provides an air intake and exhaust filtration device 1 for use in a water purifier. The water purifier includes a water tank, and the air intake and exhaust filtration device 1 includes a main body 10. An air intake chamber 20 and an air outlet chamber 30, which are not interconnected, are formed within the main body 10. An air inlet 101 for communicating with the air intake chamber 20 and an air outlet 102 for communicating with the air outlet chamber 30 are provided on the wall of the main body 10. A ventilation pipe 40 is provided at the bottom of the main body 10, which is used to communicate with the water tank. The air intake and exhaust filtration device 1 forms an air intake path and an exhaust path that are not simultaneously connected. Specifically, the air intake path is configured to be in a connected state when water is discharged from the water tank, allowing external gas to enter the air intake chamber 20 through the air inlet 101 and then enter the ventilation pipe 40 through the air intake chamber 20. The exhaust path is configured to be in a connected state when water is fed into the water tank, allowing water vapor from the water tank to enter the air outlet chamber 30 through the ventilation pipe 40 and then be discharged from the air outlet 102 through the air outlet chamber 30.

[0093] In this embodiment, the main body 10 has an air inlet chamber 20 and an air outlet chamber 30. A ventilation pipe 40 is provided at the bottom of the main body 10. The ventilation pipe 40 is connected to a water tank, facilitating the entry of gas from the ventilation pipe 40 into the water tank for smooth water discharge and the expulsion of gas from the water tank for smooth water intake. Furthermore, external gas will not directly and for extended periods contact the water in the water tank connected to the ventilation pipe 40 at the bottom of the main body 10, enabling the air intake and exhaust filtration device 1 to achieve water-gas separation, which helps prevent bacterial growth. The air intake path design allows the water tank to be pressurized by external gas when water is discharged, ensuring smooth water discharge. The exhaust path design prevents water from being obstructed by water vapor pressure when water is entering the tank, reliably enabling water intake.

[0094] like Figure 1 , Figure 2 and Figure 4As shown, the intake chamber 20 is equipped with a first filter 50, which is attached to the inner wall of the intake chamber 20 and positioned upstream of the ventilation pipe 40 along the intake airflow path. The exhaust chamber 30 is equipped with a second filter 60, which is attached to the inner wall of the exhaust chamber 30 and positioned downstream of the ventilation pipe 40 along the exhaust airflow path.

[0095] It should be noted that, as Figure 1 and Figure 2 As shown, the number of air inlets 101 and air outlets 102 can be set to one, two or more as needed.

[0096] In addition, the ventilation duct 40 is divided into an intake duct 401 and an exhaust duct 402 by the second partition 403. This arrangement reduces the space occupied by the ventilation duct 40, which helps to simplify the overall structure of the exhaust filter device and thus reduces the overall space occupied by the exhaust filter device.

[0097] The air intake chamber 20 is equipped with a first filter 50. This first filter 50 purifies external air when water is discharged from the water tank and air is introduced, preventing impurities from entering the air intake / exhaust filtration device 1 and subsequently the water tank, thus contaminating the water. A second filter 60 absorbs moisture from the water vapor in the water tank when water is introduced and air is released, preventing corrosion and damage to other components of the water purifier. The first filter 50 is attached to the inner wall of the air intake chamber 20, and the second filter 60 is attached to the inner wall of the air outlet chamber 30. This arrangement reduces the space occupied by the first and second filters in the air intake and air outlet chambers 20 and 30, thereby increasing the amount of external air entering and the amount of water vapor leaving the water tank, thus improving the efficiency of the air intake / exhaust filtration device 1.

[0098] It should be noted that the first filter 50 can be made of PP cotton plus activated carbon, etc., to absorb impurities in the external gas; the second filter 60 can be made of PP cotton, etc., to absorb moisture in the water vapor in the water tank.

[0099] like Figures 2 to 7As shown, the intake chamber 20 is equipped with an intake regulating component 70, which can switch between an open and closed state. When the intake flow path is connected, the intake regulating component 70 is in the open state, so that the intake port 101 is connected to the ventilation pipe 40; when the intake flow path is not connected, the intake regulating component 70 is in the closed state, so that the intake port 101 is not connected to the ventilation pipe 40. The exhaust chamber 30 is equipped with an exhaust regulating component 80, which can switch between an open and closed state. When the exhaust flow path is connected, the exhaust regulating component 80 is in the open state, so that the exhaust port 102 is connected to the ventilation pipe 40; when the exhaust flow path is not connected, the exhaust regulating component 80 is in the closed state, so that the exhaust port 102 is not connected to the ventilation pipe 40.

[0100] The intake and exhaust air regulating components 70 and 80 are designed to ensure that the intake and exhaust air paths are independent, preventing interference and interference between them. Both components can switch between open and closed states. This design maintains a balanced and stable water pressure within the tank when neither water is flowing in nor out, preventing large fluctuations in water pressure. Furthermore, it facilitates water-air separation during water inflow and outflow, preventing bacterial growth.

[0101] It should be noted that the intake regulating component 70 and the exhaust regulating component 80 may adopt the same structure or different structures, and no specific restrictions are imposed here.

[0102] As a preferred configuration, in this embodiment, such as Figure 2 As shown, the intake regulating assembly 70 and the exhaust regulating assembly 80 adopt the same structure, but because the gas flow direction in the intake regulating assembly 70 and the exhaust regulating assembly 80 is opposite, the intake regulating assembly 70 and the exhaust regulating assembly 80 are installed in opposite directions in the main body 10.

[0103] like Figures 2 to 8 As shown, both the intake regulating assembly 70 and the exhaust regulating assembly 80 include a housing 90, a movable member 110, and a guide member 100. Along the gas flow direction, the housing 90 has an intake end and an exhaust end. The guide member 100 is installed at the exhaust end and has a through-hole 1001 communicating with the ventilation pipe 40. The movable member 110 is movably disposed within the housing 90 and can move relative to the housing 90 between an initial position and an activated position. When the movable member 110 is in the initial position, it is located at the intake end, preventing communication between the intake end and the through-hole 1001. When the movable member 110 moves relative to the housing 90 under air pressure and is in the activated position, the intake end and the through-hole 1001 are connected.

[0104] With the above-mentioned arrangement, the movable part 110 can move relative to the housing 90 under the action of air pressure, so as to automatically realize the movement of the movable part 110 by air intake or exhaust, so as to automatically switch the corresponding air intake adjustment component 70 or air exhaust adjustment component 80 to the open state for water tank drainage or other purposes. The operation is simple and reliable, which helps to simplify the overall structure of the air intake and exhaust filter device 1. Taking water tank outlet as an example, when the water tank does not need to outlet water but needs to inflate air, the movable part 110 is in the initial position. The movable part 110 will block the flow path of the air inlet end of the housing 90, so that the air inlet end and the through port 1001 are not connected. Correspondingly, the air inlet flow path is also in a non-connected state. When water tank outlet is required and air is inflate, under the action of gas pressure, the movable part 110 moves relative to the housing 90 and can switch from the initial position to the active position. At this time, the movable part 110 no longer blocks the flow path of the air inlet end of the housing 90, so that the air inlet end and the through port 1001 are connected. Correspondingly, the air inlet flow path is also in a connected state, and air can be infused normally to achieve water outlet from the water tank.

[0105] It should be noted that the initial position and the activated position mentioned above are not limited to a specific point. In fact, along the axial direction of the movable part 110 (corresponding to the direction of movement of the movable part 110), the initial position corresponds to a position within the first length range, and correspondingly, the activated position corresponds to a position within the second length range.

[0106] like Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 9 As shown, the movable component 110 includes a head 1101 and a rod 1102 connected end to end. The cross-sectional dimension of the head 1101 is larger than that of the rod 1102. The head 1101 is located at the air inlet end of the housing 90, and the rod 1102 extends toward the air outlet end of the housing 90. A guide hole 1002 is formed in the middle of the guide component 100. The end of the rod 1102 away from the head 1101 is embedded in the guide hole 1002 and can move up and down within the guide hole 1002.

[0107] The head 1101 is relatively large, which facilitates the sealing of the air inlet of the housing 90 and allows for the installation of other auxiliary structures, such as a structure to ensure a sealed connection between the head 1101 and the inner wall of the housing 90 when the movable part 110 is in its initial position. Furthermore, the guide hole 1002 supports and limits the rod portion 1102 of the movable part 110, enabling the movable part 110 to be held within a preset position range relatively easily and reliably. Simultaneously, the guide hole 1002 guides the movement of the movable part 110, contributing to the stability of its movement.

[0108] It should be noted that the specific structure of the movable part 110 is not specifically limited here, as long as it can meet the above-mentioned usage requirements.

[0109] Furthermore, such as Figures 2 to 8 As shown, there are multiple through-holes 1001, arranged around the guide hole 1002. The multiple through-holes 1001 increase air intake and exhaust efficiency, allowing the air intake and exhaust filter device 1 to operate more efficiently and facilitating smooth and reliable water tank drainage and intake operations. Specifically, as... Figures 3 to 6 As shown, in this preferred embodiment, there are three through-holes 1001, and adjacent through-holes 1001 are separated by a first partition 1004.

[0110] Optionally or alternatively, the intake regulating assembly 70 and the exhaust regulating assembly 80 further include an elastic element 120. A guide hole 1002 is formed on the guide portion 1005 located in the middle of the guide element 100. The elastic element 120 is sleeved on the rod portion 1102, with one end sleeved on the top of the guide portion 1005 and the other end extending towards the head 1101. Correspondingly, the two ends of the aforementioned first partition 1004 are respectively connected between the inner wall of the through opening 1001 and the outer wall surface of the guide portion 1005. The elastic element 120 has several advantages. First, when the movable element 110 is in its initial position, the elastic element 120 provides support to the head 1101, ensuring that the movable element 110 reliably maintains its initial position. Second, when the movable element 110 switches between its initial and active positions, the elastic element 120 provides a buffering effect, allowing the movable element 110 to move stably. Third, when the movable element 110 needs to switch from its active position to its initial position, the elastic element 120 provides a restoring force, allowing the movable element 110 to automatically return to its initial position. This improves the flexibility of the intake regulating assembly 70 and the exhaust regulating assembly 80, and also simplifies the overall structure of the intake and exhaust filter device 1.

[0111] Furthermore, in order to ensure the reliability of the elastic member 120, the guide member 100 is provided with a limiting groove 1003 for accommodating one end of the first elastic member 120. Specifically, the limiting groove 1003 is opened at the top of the first partition 1004, so that the elastic member 120 is sleeved on the top of the guide portion, and a portion of the elastic member 120 along the circumferential direction is locked in the limiting groove 1003.

[0112] Furthermore, such as Figures 2 to 6As shown, a seal is provided between the head 1101 and the inner wall of the housing 90 to provide a sealed connection between the movable part 110 and the housing 90 when it is in its initial position. A seal is also provided between the housing 90 and the inner wall of the corresponding air inlet chamber 20 or air outlet chamber 30. These seals ensure that the target structure maintains a relatively sealed environment when needed, preventing air leakage from affecting the normal operation of the air intake and exhaust filtration device 1, and consequently, the normal use of the water purifier.

[0113] Specifically, in order to reliably install the seal, the outer wall surface of the housing 90 and the outer wall surface of the head 1101 are respectively provided with mounting grooves 140 for installing the seal.

[0114] like Figure 2 As shown, both the intake chamber 20 and the exhaust chamber 30 have a stepped portion 103 at one end near the ventilation duct 40. For the intake regulating assembly 70, the guide member 100 is supported on the stepped portion 103. The intake regulating assembly 70 includes a first fixing member 150 installed in the intake chamber 20. The first fixing member 150 is installed on the inner sidewall of the intake chamber 20 and presses against the end face of the intake end of the housing 90. Optionally or alternatively, for the exhaust regulating assembly 80, the intake end of the housing 90 is supported on the stepped portion 103. The exhaust regulating assembly 80 includes a second fixing member 160 installed in the exhaust chamber 30. The second fixing member 160 extends from the top wall of the main body 10 toward the guide member 100 and abuts against the guide member 100.

[0115] The first fixing member 150 is a structure installed on the inner wall of the air intake chamber 20. The cooperation between the first fixing member 150 and the step portion 103 can hold the guide member 100 and the housing 90 in a preset position, thereby facilitating the normal and reliable switching of the air intake regulating assembly 70 between the open and closed states. Correspondingly, the second fixing member 160 is a structure extending downward from the top wall of the main body 10. By abutting against the guide member 100, the cooperation between the second fixing member 160 and the step portion 103 can also hold the guide member 100 and the housing 90 in a preset position, thereby also facilitating the normal and reliable switching of the exhaust regulating assembly 80 between the open and closed states.

[0116] Specifically, such as Figure 2 and Figure 5 As shown, the top of the main body 10 has a top cover 170, and the second fastener 160 extends downward from the inner wall of the top cover 170 and abuts against the guide portion of the guide member 100. Furthermore, the second fastener 160 and the top cover 170 can be configured as an integral structure.

[0117] Further reference Figure 2It is understood that a first receiving area 180 is formed between the top of the first fixing member 150 and the wall of the air intake chamber 20, and the first filter 50 extends into the first receiving area 180. A second receiving area 190 is formed between the air outlet end of the housing 90 and the wall of the air outlet chamber 30, and the second filter 60 extends into the second receiving area 190. Specifically, the end of the first filter 50 near the first fixing member 150 covers the top of the first fixing member 150, and the second filter 60 extends below the top of the guide member 100.

[0118] The first filter element 50 extends to the first receiving area 180 and the second filter element 60 extends to the second receiving area 190, so that both the first filter element 50 and the second filter element 60 have a large effective filtration range, thereby achieving a better filtration effect on gas or water vapor. At the same time, the first filter element 50 and the second filter element 60 do not extend into areas where filtration is not required, thereby reducing costs. Accordingly, it is beneficial to achieve a balance between cost and filtration effect.

[0119] Example 2

[0120] like Figure 10 As shown, the intake and exhaust filter device 1 provided in this embodiment has a basically the same structure as the intake and exhaust filter device 1 provided in Embodiment 1, the main difference being that the intake chamber 20 and the exhaust chamber 30 are arranged in different main bodies 10. Correspondingly, a ventilation pipe 40 is provided at the bottom of each main body 10. The same reference numerals in this embodiment and Embodiment 1 refer to the same components. Figure 10 The device on the right corresponds to the filter when the air is being discharged, and the device on the left corresponds to the filter when the air is being supplied. The air intake adjustment component and the air exhaust adjustment component both correspond to the structure in Example 1, and will not be described again here.

[0121] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship of the device or component during normal use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation at any time, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model in this respect.

[0122] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. An air intake and exhaust filter device for a water purifier, the water purifier comprising a water tank, characterized in that, The air inlet and exhaust filtering device comprises a main body, an air inlet cavity and an air outlet cavity are formed in the main body and are not communicated with each other, an air inlet is arranged on the wall surface of the main body and is communicated with the air inlet cavity, and an air outlet is arranged on the wall surface of the main body and is communicated with the air outlet cavity; The bottom of the main body is provided with an air passage pipe, and the air passage pipe is communicated with the water tank; The air inlet and exhaust filtering device is formed with an air inlet flow path and an air outlet flow path which are not communicated at the same time; The air inlet flow path is configured to be in a communication state when the water tank discharges water, so that external gas enters the air inlet cavity from the air inlet and enters the air passage pipe through the air inlet cavity; The air outlet flow path is configured to be in a communication state when the water tank fills water, so that water vapor from the water tank enters the air outlet cavity from the air passage pipe and is discharged from the air outlet through the air outlet cavity.

2. The intake and exhaust air filtering device of claim 1, wherein The inside of the air inlet cavity is provided with a first filter piece, the first filter piece is attached to the inner wall surface of the air inlet cavity, and the first filter piece is arranged upstream of the air passage pipe along the air inlet flow path; The inside of the air outlet cavity is provided with a second filter piece, the second filter piece is attached to the inner wall surface of the air outlet cavity, and the second filter piece is arranged downstream of the air passage pipe along the air outlet flow path.

3. The intake and exhaust filtration device of claim 1, wherein, The air inlet cavity is provided with an air inlet adjusting assembly, the air inlet adjusting assembly can be switched between an open state and a closed state, when the air inlet flow path is in a communication state, the air inlet adjusting assembly is in an open state, so that the air inlet is communicated with the air passage pipe, when the air inlet flow path is in a non-communication state, the air inlet adjusting assembly is in a closed state, so that the air inlet is not communicated with the air passage pipe; The air outlet cavity is provided with an air outlet adjusting assembly, the air outlet adjusting assembly can be switched between an open state and a closed state, when the air outlet flow path is in a communication state, the air outlet adjusting assembly is in an open state, so that the air outlet is communicated with the air passage pipe, when the air outlet flow path is in a non-communication state, the air outlet adjusting assembly is in a closed state, so that the air outlet is not communicated with the air passage pipe.

4. The intake and exhaust air filtering device of claim 3, wherein The air inlet adjusting assembly and the air outlet adjusting assembly each comprise a housing, a movable piece and a guide piece, the housing has an air inlet end and an air outlet end along the flow direction of the gas; The guide piece is installed on the air outlet end, and the guide piece is provided with a through hole communicated with the air passage pipe; The movable piece is movably arranged in the housing, and the movable piece can move relative to the housing between an initial position and an activated position; When the movable piece is in the initial position, the movable piece is located at the air inlet end, so that the air inlet end and the through hole are not communicated; When the movable piece moves relative to the housing under the action of air pressure and is in the activated position, the air inlet end and the through hole are communicated.

5. The intake and exhaust air filtering device of claim 4, wherein The movable piece comprises a head portion and a rod portion connected end to end, the cross-sectional size of the head portion is larger than the cross-sectional size of the rod portion; The head portion is arranged at the air inlet end of the housing, and the rod portion extends towards the air outlet end of the housing; The middle part of the guide piece is formed with a guide hole, and the rod part is embedded in the guide hole and can move up and down in the guide hole.

6. The intake and exhaust air filtering device of claim 5, wherein The number of the through holes is multiple, and the multiple through holes are arranged around the guide hole. The air inlet adjusting assembly and the air outlet adjusting assembly further comprise an elastic member, the guide hole is arranged on a guide part in the middle part of the guide piece, the elastic member is sleeved on the rod part, one end of the elastic member is sleeved on the top of the guide part, and the other end of the elastic member is used for extending towards the head part.

7. The inlet and exhaust filtration device of claim 5, wherein, The head part and the inner wall surface of the shell are provided with a sealing member to be in sealing connection with the shell when the movable piece is in the initial position. The shell and the inner wall surface of the corresponding air inlet cavity or air outlet cavity are provided with a sealing member.

8. The intake and exhaust air filtering device of claim 4, wherein The air inlet cavity and the air outlet cavity are formed with a stepped part at one end close to the air duct. For the air inlet adjusting assembly, the guide piece is supported on the stepped part, the air inlet adjusting assembly comprises a first fixing member installed in the air inlet cavity, and the first fixing member is installed on the inner side wall of the air inlet cavity and is pressed on the end surface of the air inlet end of the shell. For the air outlet adjusting assembly, the air inlet end of the shell is supported on the stepped part, the air outlet adjusting assembly comprises a second fixing member installed in the air outlet cavity, and the second fixing member extends from the top wall of the main body towards the guide piece and abuts against the guide piece.

9. The intake and exhaust air filtering device of claim 8, wherein, The inside of the air inlet cavity is provided with a first filter piece, the first filter piece is attached to the inner wall surface of the air inlet cavity, along the air inlet flow path, the first filter piece is arranged upstream of the air duct; the inside of the air outlet cavity is provided with a second filter piece, the second filter piece is attached to the inner wall surface of the air outlet cavity, along the exhaust flow path, the second filter piece is arranged downstream of the air duct; The top of the first fixing member and the wall surface of the air inlet cavity form a first accommodating area, and the first filter piece extends to the first accommodating area. The air outlet end of the shell and the wall surface of the air outlet cavity form a second accommodating area, and the second filter piece extends to the second accommodating area.

10. A water purifier characterized by comprising: The air inlet and outlet filtering device and the water tank are provided.

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