Humidifier and valve body assembly

Abstract

There is provided a humidifier (100) and a valve body assembly (60) including the same. The humidifier (100) comprises a tank assembly (10) in which a cavity (20) for storing water is formed, and a humidifier assembly (30) including a blower part (31) for driving the humidifier to blow mist into a room, and an atomizing part (32) for atomizing the water in the cavity (20) to form mist, the humidifier assembly (30) being detachably attached to the tank assembly (10) as a whole. The valve body assembly (60) is provided between the first accommodating cavity (21) and the second accommodating cavity (22) of the humidifier (100). The valve body assembly (60) includes a first valve body part (61) in which a passage is formed for connecting the first accommodating cavity (21) and the second accommodating cavity (22), and a second valve body part (62) rotatably provided relative to the first valve body part (61). The second valve body part (62) includes a float (80) that rises and falls with changes in the water level in the second accommodating cavity (22), and a sealant (81) that rotates between a first operating position and a second operating position with the rise and fall of the float (80), closing the passage at the first operating position and opening the passage at the second operating position. The humidification assembly is completely separable from the tank assembly for storing water, allowing users to easily clean the water tank without having to avoid charged parts, allowing for more accurate control over the water level, and providing a simple and reliable structure.

Description

[Technical field]

[0001] This application claims priority to Chinese patent application having application number 202221834291.0 filed on July 15, 2022, and Chinese patent application having application number 202222047300.8 filed on August 3, 2022, the entire contents of which are incorporated herein by reference.

[0002] FIELD OF THE DISCLOSURE The present application relates to the technical field of humidifiers, and in particular to humidifiers and valve body assemblies. [Background technology]

[0003] In the prior art, a humidifier generally includes a water tank for supplying water to a humidifier device, and a humidifier device for converting the water in the water tank into mist and discharging it to improve the humidity of air in a target environment. Here, the water tank needs to be provided with a water level control system, and the humidifier generally needs to be provided with charged functional parts such as a blower, a vibrator, etc., and the user needs to clean the water tank regularly to ensure that the mist of the humidifier is sufficiently clean. Many of these charged functional parts are provided in the water tank, and the structure of the conventional water level control system is complicated, and the user needs to avoid these charged parts when cleaning the water tank, so that the cleaning is troublesome and incomplete. In addition, in the process of the user cleaning the water tank, water is easily introduced into these charged functional parts, which will cause damage and reduce the service life of the humidifier. Summary of the Invention [Problem to be solved by the invention]

[0004] The main objective of the present application is to provide a humidifier which is simple in structure, easy to disassemble and clean, and has a long service life. [Means for solving the problem]

[0005] In order to achieve the above object, the present application provides a humidification device comprising a tank assembly in which a cavity for storing water is formed, an atomization part for atomizing the water in the cavity to form mist, and a blower part for driving the mist to flow into a room, and a humidification assembly which is detachably attached to the tank assembly as a whole.

[0006] In one embodiment, the blower component is for transporting an airflow toward the atomizing component along a first direction, and after the airflow reaches the atomizing component, for driving the mist to flow into a room along a second direction, the first direction being a radial direction of the blower component.

[0007] In one embodiment, the humidification assembly further includes an air passage wall connecting the blower component and the atomization component, the air passage wall forming an air passage for communicating the interior of the room, and allowing the mist to flow along the air passage into the room.

[0008] In one embodiment, the air passage wall extends along the up-down direction, the blower part is located at an upper end of the air passage wall, and the atomizing part is located at a lower end of the air passage wall.

[0009] In one embodiment, the air passage includes a first air blowing segment and a second air blowing segment arranged in sequence along the air blowing direction, the intake port of the first air blowing segment and the exhaust port of the second air blowing segment are both located at the upper end of the air passage wall, the blower component is provided at the intake port of the first air blowing segment, the adjacent location between the first air blowing segment and the second air blowing segment is located at the lower end of the air passage wall, and the atomization component is provided.

[0010] In one embodiment, the humidifier further includes a guide ring provided in the second blowing segment, located above the atomizing component, and having a through hole extending along the vertical direction.

[0011] In one embodiment, the atomization part includes a vibrating piece, the inner diameter of the vibrating piece is R, the inner diameter of the through hole is greater than or equal to 1.1R and less than or equal to 1.5R, and / or the pitch between the bottom of the guide ring and the upper side of the vibrating piece is greater than or equal to 20mm and less than or equal to 40mm, and / or the vertical dimension of the through hole is greater than or equal to 10mm and less than or equal to 20mm.

[0012] In one embodiment, a plurality of drain ribs are protruded from an upper side of the guide ring, and the plurality of drain ribs are distributed at intervals along a circumferential direction of the through hole.

[0013] In one embodiment, the number of the drain ribs is greater than or equal to four and less than or equal to nine.

[0014] In one embodiment, the tank assembly includes a water tank that forms the cavity with an open top, and a lid that covers the top of the water tank, the lid having a mist outlet formed therein that is connected to the air passage so that the mist flows through the mist outlet into the room.

[0015] In one embodiment, the mist outlet has an elongated shape, and the width of the mist outlet is greater than or equal to 4 mm and less than or equal to 7 mm.

[0016] In one embodiment, a mist separation material is provided between the atomization part and the mist outlet, the vertical projection area of ​​the mist passage of the mist separation material is S, and the vertical projection area of ​​the mist separation material is 0.5S or more.

[0017] In one embodiment, the humidification assembly is interposed between the cover and the water tank and is at least partially received within the cavity.

[0018] In one embodiment, the cavity includes a first accommodating cavity and a second accommodating cavity spaced apart laterally, a valve body assembly is provided between the first accommodating cavity and the second accommodating cavity, the cover body has a water addition port corresponding to an upper portion of the first accommodating cavity, the humidification assembly is at least partially accommodated in the second accommodating cavity, and the mist outlet is located above the second accommodating cavity.

[0019] In order to achieve the above object, the present application further provides a valve body assembly applicable to a humidifier according to any one of claims 1 to 14, the valve body assembly being provided between a first accommodating cavity and a second accommodating cavity of the humidifier, the valve body assembly comprising: a first valve body part forming a passage for communicating between the first accommodating cavity and the second accommodating cavity; and a second valve body part rotatably provided relative to the first valve body part, the second valve body part including a float for rising and falling with a change in the water level in the second accommodating cavity, and a sealant for rotating between a first operating position and a second operating position with the rise and fall of the float, for closing the passage at the first operating position and for opening the passage at the second operating position.

[0020] In one embodiment, the second valve body part has a pivot end and a free end that pivots up and down around the pivot end, the float is disposed at the free end, and the seal is located between the pivot end and the free end.

[0021] In one embodiment, the first valve body part includes a resilient water sealing part in which the passage is formed, the seal abutting a drain end of the passage in the first operating position, and the resilient water sealing part deforming under pressure.

[0022] In one embodiment, the passage has a drainage segment extending vertically adjacent the drainage end, the seal is located below the drainage segment and abuts upwardly against the drainage segment in the first operating position, and the inner diameter of the drainage segment is configured to gradually expand at least partially from top to bottom and then gradually contract.

[0023] In one embodiment, the first valve body part is removably attached to the spacer between the first and second receiving cavities.

[0024] In one embodiment, the first valve body part has an attachment portion and the second valve body part has an attachment engagement portion, and the second valve body part is rotatably attached to the first valve body part by engagement between the attachment portion and the attachment engagement portion.

[0025] In one embodiment, one of the mounting portion and the mounting engagement portion is a pivot shaft, and the other is an open slot for engaging the pivot shaft.

[0026] In one embodiment, the first valve body part includes a tubular portion that is inserted into the through hole of the spacer to have a first end located in the first accommodating cavity and a second end located in the second accommodating cavity, and the elastic water sealing part is provided at the second end, and the elastic water sealing part is removably inserted into the tubular portion.

[0027] In one embodiment, a stopper is protruded from an outer periphery of the tubular portion, and the first valve body part further includes a fixing part, which removably connects the first end such that the spacer is engaged between the fixing part and the stopper.

[0028] In one embodiment, the fastening portion is a knob that screws onto the first end.

[0029] In one embodiment, the tubular portion is fitted with a seal ring for being disposed between the tubular portion and the spacer. Effect of the Invention

[0030] The humidifier provided by the present application includes a tank assembly having a cavity for storing water, an atomizing part for atomizing the water in the cavity to form a mist, and a blower part for driving the mist to flow into a room, and a humidifier assembly that is detachably attached to the tank assembly as a whole. The valve body assembly includes a first valve body part having a passage for communicating a first accommodating cavity with a second accommodating cavity, and a second valve body part rotatably provided with respect to the first valve body part, the second valve body part including a float for rising and falling with a change in the water level in the second accommodating cavity, and a sealant that rotates between a first operating position and a second operating position with the rise and fall of the float, and closes the passage at the first operating position and opens the passage at the second operating position. In the embodiment provided by the present application, the charged functional components such as the blower component and the atomizing component in the humidifier are integrated into a humidifier assembly, and the humidifier assembly as a whole can be completely separated from the tank assembly for storing water, so that the user can easily remove and separate the assemblies in the humidifier individually and clean the water tank without having to avoid the charged components. Here, the first valve body component is removably attached to the spacer, and the second valve body component is rotatably attached to the first valve body component, so that the valve body assembly as a whole can be removed from the water tank for maintenance, and water can be prevented from entering the charged components in the humidifier during the cleaning process by the user, thereby extending the service life of the humidifier. [Brief description of the drawings]

[0031] In order to more clearly explain the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. The drawings in the following description are only some embodiments of the present application, and it is obvious to those skilled in the art that they can also obtain other drawings based on the structures shown in these drawings without paying creative labor.

[0032] [Figure 1] 1 is a schematic diagram of the three-dimensional structure of one embodiment of a humidification device provided by the present application. [Diagram 2] FIG. 2 is an exploded schematic view of the three-dimensional structure of the humidifier in FIG. [Diagram 3] 2 is a vertical cross-sectional view of the humidifier in FIG. 1. [Figure 4] FIG. 3 is a schematic diagram of the three-dimensional structure of the lid body in FIG. 2. [Diagram 5] 5 is a front view of the lower side of the lid in FIG. 4. [Figure 6] 5 is a front view of the upper side of the lid in FIG. 4. [Figure 7] FIG. 4 is a schematic diagram of a three-dimensional structure of the guide ring in FIG. [Figure 8] FIG. 8 is a front view of the upper side of the guide ring in FIG. 7. [Figure 9] 2 is a horizontal cross-sectional view of the humidifier in FIG. 1. [Figure 10] FIG. 2 is a partial cross-sectional view showing only the valve body assembly of one embodiment of a humidification device provided by the present application. [Figure 11] FIG. 11 is an enlarged schematic view of A in FIG. [Figure 12] 11 is an exploded schematic view of a partial three-dimensional structure of the humidifier in FIG. 10. FIG.

[0033] The realization of the object, the functional features and advantages of the present application will be further explained with reference to the drawings in conjunction with the embodiments. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0034] In addition, if there is any directional instruction in the embodiments of the present application, the directional instruction is only for interpreting the relative positional relationship and movement situation between each part in a certain specific posture, but if the specific posture changes, the directional instruction also changes accordingly.

[0035] In addition, when there are descriptions of "first", "second", etc. in the examples of the present application, the descriptions of "first", "second", etc. are merely for describing the purpose, and cannot be understood as indicating or implying the relative importance thereof, or as implying the number of the indicated technical features. Thus, the features defined by "first" and "second" may explicitly or implicitly include at least one of these features. In addition, "and / or" appearing in the entire sentence means including three parallel proposals, for example, "Plan A and / or Plan B" means a plan that is satisfied by Plan A or Plan B, or Plan A and Plan B at the same time.

[0036] In the prior art, a humidifier generally includes a water tank for supplying water to a humidifier device, and a humidifier device for converting the water in the water tank into mist and discharging it to improve the humidity of air in a target environment. In this regard, the water tank needs to be provided with a water level control system, and the humidifier generally needs to be provided with charged functional parts such as a blower, a vibrator, etc., and the user needs to clean the water tank regularly to ensure that the mist of the humidifier is sufficiently clean. Many of these charged functional parts are provided in the water tank, and the structure of the conventional water level control system is complicated, and the user needs to avoid these charged parts when cleaning the water tank, so that the cleaning is troublesome and incomplete. In addition, in the process of the user cleaning the water tank, water is easily introduced into these charged functional parts, which will cause damage and reduce the service life of the humidifier.

[0037] In order to solve the above technical problems, the present application provides a humidifier 100 with reference to Figs. 1 to 8. The humidifier 100 includes a tank assembly 10 in which a cavity 20 for storing water is formed, and a humidifier assembly 30 detachably attached to the tank assembly 10. In this embodiment, the specific shape and material of the tank assembly 10 are not limited as long as the cavity 20 capable of storing water can be formed. The humidifier assembly 30 is used to convert the water stored in the cavity 20 into mist and discharge it into a room so as to improve the humidity of the air in the room and make people in the room feel comfortable. Specifically, in this embodiment, referring to Fig. 2 continuously, the humidifier assembly 30 can be separated from the tank assembly 10 as a whole, and specifically, the humidifier assembly 30 includes a blower part 31 for driving the mist to flow into the room and an atomizing part 32 for atomizing the water in the cavity 20 to form the mist, which are provided integrally or connected to each other. The type of the atomizing part 32 is not limited, but in one embodiment, the atomizing part 32 includes a vibrating piece for performing ultrasonic vibration to generate mist. In another embodiment, the atomizing part 32 may be a cold evaporation type or thermal evaporation type atomizer. The blower part 31 mainly includes a motor and a fan wheel, and when the humidifier 100 is operated, the atomizing part 32 generates mist, while the motor rotates and drives the fan wheel to generate airflow, which blows the mist in the cavity 20 out of the cavity 20 and blows it into the room, thereby increasing the water content in the room and increasing the humidity of the air in the room.

[0038] In addition, the description of the directionality and orientation in this application does not include the state during the manufacturing, transportation, installation and sale of the humidifier 100, but only the state during normal use after the installation of the humidifier 100 is completed. In this embodiment, the vertical direction refers to the direction approximately parallel to gravity. The horizontal direction refers to the direction approximately perpendicular to the vertical direction.

[0039] The atomizing part 32 and the blower part 31 may be integrally provided in a number of ways, for example, they may be integrally molded, or a number of parts may be bonded together. The humidifying assembly 30 may be connected to the tank assembly 10 in a manner that allows easy removal of the humidifying assembly 30 as a whole, for example, the humidifying assembly 30 may be engaged with the tank assembly 10, so that the humidifying assembly 30 can be separated from the tank assembly 10 as a whole.

[0040] In the embodiment provided by the present application, the electrically charged functional components such as the blower component 31 and the atomizing component 32 in the humidifying device 100 are integrated as a humidifying assembly 30, and the humidifying assembly 30 can be completely separated as a whole from the tank assembly 10 for storing water. When a user needs to clean the tank assembly 10, the user can simply remove the entire humidifying assembly 30 from the tank assembly 10 without having to avoid the electrically charged components such as the atomizing component 32 and the blower component 31, thereby easily and thoroughly cleaning the water tank 11, and can prevent water from entering the electrically charged components in the humidifying device 100 during the process of cleaning the water tank 11 by the user, thereby extending the service life of the humidifying device 100.

[0041] In addition to the previous embodiment, still referring to FIG. 3, the blower part 31 is for transporting airflow toward the atomizing part 32 along a first direction, and after the airflow reaches the atomizing part 32, it drives the mist to flow into the room along a second direction, the first direction being the radial direction of the blower part 31. In this embodiment, the first direction is different from the second direction, thus the flow direction of the mist is different from the exhaust direction of the blower part 31, and the mist hardly flows back to the blower part 31, thereby ensuring the dryness of the blower part 31, and is less susceptible to damage due to the influence of the mist, and has better reliability. In one embodiment, the first direction is a top-to-bottom direction, while the second direction is a bottom-to-top direction. Also, in this embodiment, the first direction is a radial direction of the blower part 31. Although the specific type of the blower part 31 is not limited, in one embodiment, the blower part 31 is a centrifugal blower, which has a small volume and a large air flow rate.

[0042] In addition to the previous embodiment, still referring to Fig. 2 and Fig. 3, the humidification assembly 30 further includes an air passage wall 33 connecting the blower part 31 and the atomizing part 32, and the air passage wall 33 is formed with an air passage 330 for communicating the cavity 20 with the room so that the mist flows into the room along the air passage 330. It is understood that the humidification device 100 should be provided with an air passage 330 so that the mist generated by the atomizing part 32 atomizing the water stored in the cavity 20 can flow smoothly into the room. The airflow generated during the operation of the blower part 31 flows along the air passage 330, thereby causing the mist to flow along the air passage 330, and the air passage 330 has an outlet communicating with the room so that the mist can be blown into the room along the air passage 330. The structure and material of the air passage wall 33 are not limited as long as it can form the air passage 330 that communicates with the room, and the air passage 330 should communicate with the cavity 20 and / or have an inlet for the mist to enter the air passage 330, and the mist in the air passage 330 is blown into the room by the airflow caused by the operation of the blower part 31. The air pressure generated by the blower part 31 sends the mist to a location away from the humidifier 100, and the humidity in the room can be increased quickly and widely.

[0043] In addition to the previous embodiment, still referring to Figures 2 and 3, in this embodiment, the air passage wall 33 extends along the vertical direction, the blower part 31 is located at the upper end of the air passage wall 33, and the atomizing part 32 is located at the lower end of the air passage wall 33.

[0044] In addition, the description of the directionality and orientation in this application does not include the state during the manufacturing, transportation, installation and sale of the humidifier 100, but only the state during normal use after the installation of the humidifier 100 is completed. In this embodiment, the vertical direction refers to a direction approximately parallel to gravity. The horizontal direction refers to a direction approximately perpendicular to the vertical direction.

[0045] In this embodiment, since the water in the tank assembly 10 is generally located at the lower end of the tank assembly 10 due to gravity, it is understood that the atomizing part 32 should also be located at the lower end of the tank assembly 10 so that it can easily come into contact with the water stored in the tank and convert the water stored in the tank into mist. Meanwhile, the blower assembly may be located at a position where it can transport airflow into the air passage 330 so that wind pressure is generated in the air passage 330. In order to extend the service life of the blower assembly, the blower part 31 is located at the upper end of the air passage wall 33, and the atomizing part 32 is located at the lower end of the air passage wall 33, so that the blower part 31 is located at a position away from the mist generation area, and the mist generated by the atomizing part 32 is less likely to flow into the blower part 31. It is understood that the blower part 31 is usually provided with precision electrified parts such as a motor, and if these parts come into contact with mist and become moist, they are prone to failure, which may affect the service life of the humidifier 100 or cause unstable operation of the humidifier 100. Therefore, in this embodiment, the blower part 31 is located above the atomizing part 32 and is far from the mist generation area, but is also far from the water storage in the tank assembly 10, so that the probability of failure of the blower part 31 due to moisture can be reduced, the service life of the humidifier 100 can be extended, and the operation of the humidifier 100 can be stabilized.

[0046] The air passage wall 33 generally extends in the vertical direction, and its shape is not limited. In one embodiment, referring to Figs. 2 and 3, the air passage wall 33 generally has a hollow cylindrical structure, the air passage 330 is formed in the cylindrical air passage wall 33, and the blower part 31 is connected to the upper end of the air passage wall 33. In one embodiment, the blower part 31 is screwed to the air passage wall 33, and the humidification part is connected to the lower end of the air passage wall 33 and is also screwed to the air passage wall 33. The mist generated by the atomization part 32 flows along the air passage 330 due to the action of the airflow generated by the blower part 31, and flows into the room. Then, the mist is sent to a place away from the humidifier 100, and the humidity in the room can be increased quickly and widely.

[0047] The specific shape of the air passage 330 may be of various types, as long as it communicates with the room and the airflow generated by the blower part 31 and the mist generated by the atomizer can enter the air passage 330. In one embodiment, the mist outlet 101 of the humidifier 100 is located above the humidifier 100, and in order to space the mist outlet 101 from the blower assembly, in this embodiment, still referring to Figure 3, the air passage 330 includes a first air blowing segment 331 and a second air blowing segment 332 arranged in sequence along the air blowing direction, the air intake of the first air blowing segment 331 and the air exhaust of the second air blowing segment 332 are both located at the upper end of the air passage wall 33, the blower part 31 is provided at the air intake of the first air blowing segment 331, the adjacent point between the first air blowing segment 331 and the second air blowing segment 332 is located at the lower end of the air passage wall 33, and the atomization part 32 is provided. In this embodiment, the first air blowing segment 331 and the second air blowing segment 332 are arranged almost in parallel, and the air passage wall 33 has a partition plate extending vertically between the first air blowing segment 331 and the second air blowing segment 332. The blower part 31 is located at the air intake of the first air blowing segment 331 and transports airflow from top to bottom toward the first air blowing segment 331. Meanwhile, the atomizing part 32 is located at the lower ends of the first air blowing segment 331 and the second air blowing segment 332 and is located at an adjacent location between the first air blowing segment 331 and the second air blowing segment 332. During the process of the airflow moving from the first air blowing segment 331 to the second air blowing segment 332, the mist is encountered and transported from bottom to top along the second air blowing segment 332, and finally blown out from the mist outlet 101 and blown into the room. In this embodiment, the airflow generated by the blower part 31 encounters the mist after passing through the first blowing segment 331, and then transports the mist along the second blowing segment 332 spaced apart from the first blowing segment 331. In this way, it is difficult for the mist to enter the first blowing segment 331 and come into contact with the blower part 31.Furthermore, since the entire first air blowing segment 331 extends vertically, it is difficult for mist or water stored in the tank assembly 10 to flow along the first air blowing segment 331 to the blower part 31. In this way, the blower part 31 is effectively isolated from the stored water or mist, thereby keeping the blower part 31 dry, improving the reliability of the blower part 31, and further extending the service life of the humidifier.

[0048] 3, 7 and 8, in one embodiment, the humidifier 100 further includes a guide ring 40 provided in the second blowing segment 332 and located above the atomizing part 32, the guide ring 40 having a through hole 41 extending in the vertical direction. In this embodiment, the guide ring 40 is provided on a path that vibrates and transmits the mist, has a circular shape, and plays a role of collecting the mist, reducing internal flow loss, and increasing the amount of humidification when the atomizing part 32 is operated. In addition, the guide ring 40 can also receive water droplets generated by the mist gathering above, and can prevent the water droplets from directly dripping onto the water surface of the atomizing part 32 and affecting the operation of the atomizing part 32. The dripping sound caused by the water droplets dripping onto the water surface can also be reduced.

[0049] The size of the through hole 41 should be set within an appropriate range, and if the through hole 41 is too small, it may affect the flow rate of the mist, so that the mist is not smoothly transported to a place away from the humidifier 100, but gathers at the mist outlet 101, affecting the use effect of the humidifier 100. On the other hand, if the through hole 41 is too large, it cannot properly collect the mist, and cannot reduce the internal flow loss and increase the humidification amount. Therefore, in one embodiment, referring to FIG. 9, the atomization part 32 includes a vibrating piece, the inner diameter of the vibrating piece is R, and the inner diameter R1 of the through hole 41 is 1.1R or more and 1.5R or less, so that the through hole 41 can properly reduce the internal flow loss and increase the humidification amount, and does not significantly reduce the flow rate of the mist.

[0050] In one embodiment, the atomization part 32 includes a vibrating piece, and the pitch H1 between the bottom of the guide ring 40 and the upper side of the vibrating piece is greater than 20 mm and less than 40 mm; thus, the guide ring 40 will not affect the flow of the mist by being set too low, nor will it fail to perform its role of collecting the mist by being set too high.

[0051] In another embodiment, the vertical dimension H of the through hole 41 is greater than or equal to 10 mm and less than or equal to 20 mm. In this way, within this height range, the mist can be well collected and continue to rise.

[0052] The above three embodiments may be implemented individually or in combination.

[0053] 7 and 8 in addition to the above embodiment, in order to further reduce the dripping sound caused by collecting the mist, a plurality of drain ribs 42 are protruded from the upper side of the guide ring 40, and the plurality of drain ribs 42 are distributed at intervals along the circumferential direction of the through hole 41. The shape of the drain rib 42 is not limited as long as it can reduce the flow speed of the water droplets, thus reducing the dripping sound caused by the water droplets and improving the use experience of the humidifier 100.

[0054] 8 , in one embodiment, each of the drain ribs 42 has a stripe shape, and the longitudinal direction of each of the drain ribs 42 extends along the circumferential direction of the through-hole 41. The number of the drain ribs 42 is preferably 4 or more and 9 or less, which can better reduce the flow speed of large water droplets, reduce the dripping sound caused by water droplets, and improve the user experience of the humidifier 100.

[0055] In addition to the above embodiment, referring to Figs. 2 to 4, the tank assembly 10 includes a water tank 11 forming the cavity 20 with an open top, and a cover 12 provided to cover the top of the water tank 11. The cover 12 is provided with a mist outlet 101 communicating with the air passage 330 so that the mist flows through the mist outlet 101 into the room. It is understood that in other embodiments, the mist outlet 101 may be formed in the humidification assembly 30. In contrast, in this embodiment, the mist outlet 101 is provided in the cover 12, and the cover 12 is provided to cover the opening on the top of the water tank 11, thereby protecting the water tank 11 from overflowing and reducing impurities from falling into the water tank 11. This improves the quality of the water stored in the water tank 11 and makes it suitable for atomization humidification. When the water tank 11 needs to be cleaned, the water tank 11 can be easily cleaned by opening the lid 12 and pouring out the stored water. When water needs to be added, the lid 12 may be opened to add water.

[0056] The shape and dimensions of the mist outlet 101 are not limited. If the dimensions of the mist outlet 101 are too large, the height of the mist outlet is likely to be insufficient, and it is understood that the mist is likely to wet the surroundings of the mist outlet 101 after the humidifier 100 has been operating for a long time. On the other hand, if the dimensions of the mist outlet 101 are too small, a water film is formed at the mist outlet 101, and the mist cannot be sent out. Therefore, in one embodiment, referring to FIG. 6, the mist outlet 101 has an elongated shape, and specifically, may have an elongated shape such as a rectangle. The width D of the mist outlet 101 is 4 mm or more and 7 mm or less. In this size range, the mist can flow out smoothly from the mist outlet 101, and at the same time, the height of the mist outlet is high, and the mist is not easy to wet the humidifier 100. The minimum inner diameter of the mist outlet 101 is the minimum dimension of the cross section in the mist outlet direction of the mist outlet 101. In one embodiment, the mist outlet 101 has an elongated shape, and the inner diameter of the mist outlet 101 in the short direction is the minimum inner diameter of the mist outlet 101.

[0057] 4 to 6, in one embodiment, a mist separating material 50 is provided between the atomizing component 32 and the mist outlet 101, and the projected area of ​​the mist passage in the vertical direction of the mist separating material 50 is S, and the projected area of ​​the mist separating material 50 in the vertical direction is 0.5S or more. The projected area of ​​the mist passage in the vertical direction of the mist separating material 50 refers to the total cross-sectional area through which the mist passes through the mist separating material 50, and the mist separating material 50 plays a role in dispersing the mist, thereby reducing the occupancy rate of large water droplets at the mist outlet 101, and preventing the large mist from wetting the surrounding area where it is placed when the humidifier 100 is in operation.

[0058] 1 to 3, in one embodiment, the humidifier assembly 30 is interposed between the cover 12 and the water tank 11, and at least a portion of the humidifier assembly 30 is housed in the cavity 20. In this embodiment, when the water tank 11 needs to be cleaned, the cover 12 can be removed to take out the humidifier assembly 30, and then the cover 12 and the water tank 11 can be easily washed.

[0059] In one embodiment, the cover 12 is further provided with a water-adding port 102, so that when adding water to the water tank 11, there is no need to open the cover 12, making the operation more convenient.

[0060] 3, the cavity 20 includes a first receiving cavity 21 and a second receiving cavity 22 spaced apart from each other in the horizontal direction, and a valve body assembly 60 is provided between the first receiving cavity 21 and the second receiving cavity 22. The cover 12 is provided with a water addition port 102 corresponding to the upper part of the first receiving cavity 21, and the humidification assembly 30 is at least partially received in the second receiving cavity 22, and the mist outlet 101 is located above the second receiving cavity 22. In this embodiment, it can be understood that a large amount of water can be stored in the first receiving cavity 21, while the second receiving cavity 22 is controlled to maintain a constant water level by the valve body assembly 60, which facilitates the atomization part 32 to atomize the water in the water tank 11 to generate mist.

[0061] 10 to 12, in one embodiment, the structure of one embodiment of the humidifying device 100 provided by the present application is as shown in the drawings, the humidifying device 100 may be a humidifier, a steamer, or other water level control system in which a first receiving cavity 102 and a second receiving cavity 103 are provided and water is supplied to the second receiving cavity 103 via the first receiving cavity 102. In the prior art, specifically in this embodiment, the humidifying device 100 includes a water tank 11 forming the first receiving cavity 102 and the second receiving cavity 103 distributed laterally, and a valve body assembly 60. The valve body assembly 60 is provided between the first receiving cavity 102 and the second receiving cavity 103.

[0062] In one embodiment, the humidifying device 100 is a humidifier, and an atomizer is provided in the second receiving cavity 103, and the first receiving cavity 102 supplies water to the second receiving cavity 103 via the valve body assembly 60 to operate the atomizer, so that the water level in the second receiving cavity 103 is controlled within a certain range. In a conventional humidifier, the first receiving cavity 102 and the second receiving cavity 103 are vertically distributed, but in this embodiment, the first receiving cavity 102 and the second receiving cavity 103 are horizontally distributed with a gap therebetween. In the prior art, the first accommodating cavity 102 and the second accommodating cavity 103 are generally distributed in the vertical direction, but in the present application, the positional relationship between the first accommodating cavity 102 and the second accommodating cavity 103 is distributed with a horizontal gap, and referring to Fig. 10, the valve body assembly 60 in the figure is in an open state, and the water flows in the direction shown when the first accommodating cavity 102 supplies water to the second accommodating cavity 103. In this embodiment, in order to realize the supply of water from the first accommodating cavity 102 to the second accommodating cavity 103 and to realize a relatively accurate control of the water level in the second accommodating cavity 103, the present application further provides a valve body assembly 60.

[0063] 10 to 12, in the present application, the valve body assembly 60 is attached between the first accommodating cavity 102 and the second accommodating cavity 103 so that the first accommodating cavity 102 supplies water to the second accommodating cavity 103 via the valve body assembly 60. In one embodiment, a spacer 23 is provided between the first accommodating cavity 102 and the second accommodating cavity 103, and a specific structure of the spacer 23 is not limited as long as it isolates the first accommodating cavity 102 and the second accommodating cavity 103 and communicates the first accommodating cavity 102 and the second accommodating cavity 103 through a through hole of the spacer 23, and the valve body assembly 60 is attached to the spacer 23 and provided to penetrate the through hole. In other embodiments, the method of mounting the valve body assembly 60 may be of multiple types, but it is understood that it is sufficient that the first accommodating cavity 102 can supply water to the second accommodating cavity 103 via the valve body assembly 60 and that the water level in the second accommodating cavity 103 can be controlled via the valve body assembly 60.

[0064] 10 to 12, in this embodiment, the valve body assembly 60 includes a first valve body part 61 in which a passage 63 is formed for communicating the first accommodating cavity 102 and the second accommodating cavity 103, and a second valve body part 62. The second valve body part 62 is rotatably provided with respect to the first valve body part 61, and includes a float 80 for rising and falling with a change in the water level in the second accommodating cavity 103, and a sealant 81 for rotating between a first operating position and a second operating position with the rise and fall of the float 80, closing the passage 63 at the first operating position and opening the passage 63 at the second operating position.

[0065] In the embodiment provided by the present application, the specific shape of the passage 63 is not limited, and it is sufficient that the passage 63 can communicate with the first accommodating cavity 102 and the second accommodating cavity 103. In some cases, the water stored in the first accommodating cavity 102 flows through the passage 63 to the second accommodating cavity 103, and supplies water to the second accommodating cavity 103, thereby raising the water level in the second accommodating cavity 103. Meanwhile, a water-consuming component in the second accommodating cavity 103, such as an atomizer in a humidifier or a steam generator in a steamer, consumes water in the second accommodating cavity 103, thereby lowering the water level in the second accommodating cavity 103. The specific structure and material of the float 80 are not limited, and may be, for example, a hollow rubber ball, a silica gel ball, or a light material with high buoyancy such as a foam. The buoyancy of the float 80 changes with the change in the water level in the second accommodating cavity 103, and the rise and fall of the water level in the second accommodating cavity 103 causes the float 80 to rise and fall.

[0066] In this embodiment, referring to Fig. 10, the first valve body is provided rotatably, and the rotatable mounting manner of the first valve body is not limited, for example, it may be rotatably fixed to the water tank 11 or to the second valve body. Since the seal 81 and the float 80 are both attached to the second valve body, the second valve body is rotated by the rise and fall of the float 80, and the seal 81 is further rotated to change its position. Specifically, when the water level in the second accommodating cavity 103 rises to a certain height, for example, a first liquid level, the float 80 rises and rotates the seal 81 to the first operating position to close the passage 63. At this time, the water in the first accommodating cavity 102 stops flowing to the second accommodating cavity 103, and when the water-consuming part in the second accommodating cavity 103 is operated, the water level in the second accommodating cavity 103 is lowered, and when the water level in the second accommodating cavity 103 is lowered to a certain height, for example, the second liquid level, the position of the float 80 is lowered and the seal 81 is rotated to the second operating position to open the passage 63, and the water in the first accommodating cavity 102 flows to the second accommodating cavity 103, and the water level in the second accommodating cavity 103 is raised. It is understood that the first liquid level is higher than the second liquid level, and when the water level in the second accommodating cavity 103 rises to the first liquid level again, the passage 63 is closed again. In this manner, the water level in the second accommodating cavity 103 is controlled between the first liquid level and the second liquid level, thereby realizing control over the water level in the second accommodating cavity 103.

[0067] In addition, in this embodiment, since the second valve body part 62 is rotatably mounted, the seal 81 rotates with the rise and fall of the float 80, and the existence of a pivoting lever arm amplifies the effect of the change in buoyancy of the float 80 on the movement stroke of the seal 81, so that even a slight change in water level drives the seal 81 to move between the first and second operating positions. Specifically, compared with other technical solutions in which the passage 63 is opened or closed directly by the rise and fall of the float 80, in this embodiment, the structure of the valve body assembly 60 reduces the liquid level difference between the first and second liquid levels, i.e., more accurate control of the water level in the second receiving cavity 103 is realized, and the overall structure of the second valve body assembly 60 is simple, reliable, and easy to maintain.

[0068] 10, in one embodiment, the second valve body part 62 has a rotating end and a free end that rotates up and down around the rotating end, the float 80 is provided at the free end, and the seal 81 is located between the rotating end and the free end. In this embodiment, the seal 81 rotates upward as the float 80 rises and rotates downward as the float 80 descends, so that the seal 81 blocks the passage 63 upward in the first operating position, and the sealing ability of the seal 81 with respect to the passage 63 is strengthened by the action of buoyancy. In another embodiment, the rotating end may be located between the sealing material 81 and the float 80, and thus the sealing material 81 rotates downward as the float 80 rises and rotates upward as the float 80 descends, and the sealing material 81 blocks the passage 63 downward in the first operating position, and thus, when the liquid level in the second accommodating cavity 103 rises, the sealing material 81 becomes more likely to open the passage 63.

[0069] 10 to 12 in addition to the above embodiment, the first valve body part 61 includes an elastic water sealing part, and in this embodiment, the elastic water sealing part 70 refers to a structure whose material has elastic deformation characteristics and a certain sealing property, and can block the flow of water between the first accommodating cavity 102 and the second accommodating cavity 103 together with the sealant 81. In this embodiment, the elastic water sealing part 70 has the passage 63 formed therein, and the sealant 81 abuts against the drain end 90 of the passage 63 in the first operating position, and the elastic water sealing part 70 is deformed under pressure. That is, in this embodiment, when the passage 63 is blocked, the elastic water sealing part 70 deforms under pressure and has a certain reaction force against the sealant 81, making the adhesion between the sealant 81 and the elastic water sealing part 70 tighter and improving the sealing performance. When the water level drops and the buoyancy decreases, the recovered reaction force of the elastic water sealing part 70 acts on the sealant 81, making it easier to repel the sealant 81, allowing water to flow more smoothly into the passage 63, and the control of the valve body assembly 60 with respect to the water level in the second accommodating cavity 103 is also more accurate.

[0070] The elastic water sealing part 70 and / or the sealing material 81 may be made of a variety of materials, for example, they may be made of rubber or silica gel. In one embodiment, the elastic water sealing part 70 and the sealing material 81 are made of silica gel, which is durable, has safe ingredients, is easy to clean, and is not conducive to bacterial growth.

[0071] In addition to the previous embodiment, referring to Fig. 10, in one embodiment, the passage 63 has a drainage segment 91 extending vertically adjacent to the drainage end 90, the seal 81 is located below the drainage segment 91 and abuts the drainage segment 91 upward in the first working position, and the inner diameter of the drainage segment 91 is arranged to gradually expand at least partially from top to bottom and then gradually contract. In this embodiment, it can be seen that the elastic water sealing part 70 has a drum-like overall shape in the drainage segment 91, and thus the elastic water sealing part 70 is more easily compressed and deformed upward when the seal 81 abuts the drainage end 90 of the passage 63, thereby accumulating a larger elastic force and providing better sealing to the passage 63.

[0072] It is understood that when the valve body assembly 60 is applied to a home appliance such as a humidifier or an evaporator, it is preferable that the valve body assembly 60 has an easily removable structure for a user to remove and clean the valve body assembly 60 so as to avoid bacterial growth due to long-term use of the valve body assembly 60 affecting the user's health or clogging with scale affecting the control performance of the water level. Therefore, in one embodiment, the first valve body part 61 is removably attached to the spacer 23 between the first receiving cavity 102 and the second receiving cavity 103. In this way, when a user wants to thoroughly clean the first valve body part 61, the first valve body part 61 can be removed from the water tank 11 and the elastic water sealing part 70 can be easily and cleanly cleaned.

[0073] In one embodiment, the entire valve body assembly can be removed from the spacer 23, and thus the entire valve body assembly 60 can be removed from the water tank 11 and thoroughly washed to avoid the influence of bacteria on the health of the user and the influence of scale on the control performance of the water level, while facilitating the installation of the valve body assembly 60. Therefore, in one embodiment, the first valve body part 61 has an attachment part, the second valve body part 62 has an attachment engagement part, and the second valve body part 62 is rotatably attached to the first valve body part 61 by the engagement between the attachment part and the attachment engagement part. In this way, the second valve body part 62 is rotatably attached to the first valve body part 61, not to the water tank 11, and the entire valve body assembly 60 can be removed from the water tank 11 for maintenance.

[0074] In addition to the previous embodiment, one of the mounting part and the mounting engagement part is a pivot shaft 103, and the other is an open slot 104 for engaging the pivot shaft 103. In one embodiment, the first valve body part 61 is provided with the open slot 104, and the pivot end of the second valve body part 62 is provided with the pivot shaft 103, so that the second valve body part 62 is pivotally mounted on the first valve body part 61, and the design of the open slot 104 makes it easy to separate the first valve body part 61 and the second valve body part 62. When the valve body assembly 60 needs to be maintained or cleaned, the first valve body part 61 can be removed from the water tank 11, and then the first valve body part 61 and the second valve body part 62 can be separated. After the first valve body part 61 and the second valve body part 62 are completely cleaned, the first valve body part 61 and the second valve body part 62 can be assembled together first, and then the first valve body part 61 can be installed in the water tank 11. In this way, the installation operation is facilitated, and the valve body assembly 60 can be more easily cleaned to avoid the proliferation of bacteria.

[0075] In one embodiment, still referring to FIG. 10, the first valve body part 61 includes a tubular part 71 for being inserted into the through hole of the spacer 23 to have a first end located in the first receiving cavity 102 and a second end located in the second receiving cavity 103, and the elastic water sealing part 70 is provided at the second end. In this way, the first valve body part 61 is removably attached to the water tank 11, the tubular part 71 has a hollow core, and the elastic water sealing part 70 is attached to the second end of the tubular part 71 and the passage 63 therein communicates with the core, thereby realizing communication between the first receiving cavity 102 and the second receiving cavity 103. In this way, the removably attached first valve body part 61 and the spacer 23 is realized by a simple structure. In one embodiment, the tubular part 71 extends in a transverse direction.

[0076] The elastic water sealing part 70 and the tubular part 71 may be connected in a number of ways, for example, by fastening or screwing, but in this embodiment, the elastic water sealing part 70 is removably inserted into the tubular part 71. Specifically, the elastic water sealing part 70 may be fitted into the core of the tubular part 71, or the elastic water sealing part 70 may be fitted around the outer periphery of the tubular part 71. In this way, the elastic water sealing part 70 and the tubular part 71 are fixedly connected by the elastic force of the elastic water sealing part 70, so that the structure is simple and they can be easily removed and assembled. In this way, when cleaning the first valve body part 61, the elastic water sealing part 70 and the tubular part 71 can be separated and cleaned separately, allowing for more thorough cleaning. Furthermore, in one embodiment, the elastic water sealing part 70 includes an embedded segment extending laterally and the drainage segment 91 extending vertically, and the embedded segment and the drainage segment 91 are integrally molded to improve the sealing ability of the elastic water sealing part 70 and to increase its durability and reliability.

[0077] 1 to 3, in one embodiment, in order to better fix the first valve body part 61 and the water tank 11, a stopper 72 is protruded from the outer periphery of the tubular part 71, and the first valve body part 61 further includes a fixing part, which is for detachably connecting the first end so that the spacer 23 is engaged between the fixing part and the stopper 72. In this embodiment, when attaching the first valve body part 61, the second end of the tubular part 71 may be grasped, and the tubular part 71 may be inserted from the side facing the second accommodating cavity 103 of the through hole to pass through the first accommodating cavity 102 so that the stopper 72 abuts against the spacer 23, and then the fixing part may be fixed from the first accommodating cavity 102 to the first end of the tubular part 71 so that the spacer 23 is engaged between the fixing part and the stopper 72. The stopper 72 acts as a limiter to fix the position of the first valve body part 61, while increasing the contact area between the tubular portion 71 and the outer periphery of the through-hole to better seal the through-hole and prevent water from flowing through the gap between the tubular portion 71 and the through-hole to affect the control performance of the valve body part 61 with respect to the water level in the second accommodating cavity 103.

[0078] The specific structure of the fixing part is not limited, but may be any structure that can be fixed to the first end of the tubular part 71. In one embodiment, with continued reference to Figures 10 to 12, the fixing part is a knob 73 that is screwed onto the first end. In this way, the user can reliably fix and attach the first valve body part 61 to the spacer 23 simply by rotating the knob 73, and the structure is simple, reliable, and easy to operate.

[0079] In order to further strengthen the sealing of the tubular portion 71 against the through hole, a seal ring 74 is fitted between the tubular portion 71 and the spacer 23 on the outside of the tubular portion 71. The material of the seal ring 74 may be rubber, silica gel, or the like. In one embodiment, two seal rings 74 are provided. In this embodiment, the spacer 23 is formed with a sleeve extending laterally around the outer periphery of the through hole, and the tubular portion 71 is fitted into the sleeve so that the contact area between the tubular portion 71 and the spacer 23 is increased. Furthermore, a first seal ring 74 is provided between the inner periphery of the sleeve and the outer periphery of the tubular portion 71, a second seal ring 74 is provided between the stopper 72 and the spacer 23, and the second seal material 81 is bent so as to have a portion interposed between the stopper 72 and the spacer 23 and a portion interposed between the inner periphery of the sleeve and the tubular portion 71. In this way, the first seal ring 74 and the second seal ring 74 together close the through hole, enhancing the sealing of the through hole of the first valve body part 61. It is prevented that water flows through the gap between the tubular part 71 and the through hole, and affects the control performance of the valve body part 61 with respect to the water level in the second accommodating cavity 103.

[0080] The above is merely a preferred embodiment of the present application, and does not limit the patent scope of the present application. Under the concept of the utility model of the present application, the equivalent structural transformation made by using the contents of the specification and drawings of the present application, or directly / indirectly used in other related technical fields, is included in the patent protection scope of the present application. [Explanation of symbols]

[0081] 100...humidifier, 10...tank assembly, 11...water tank, 12...lid, 20...cavity, 21...first storage cavity, 22...second storage cavity, 23...spacer, 101...mist outlet, 102...water addition port, 30...humidifier assembly, 31...blower part, 32...atomization part, 33...air passage wall, 330...air passage, 331...first air blowing segment, 332...second air blowing segment, 103...rotating Shaft, 40...guide ring, 41...through hole, 42...drain rib, 50...mist separator, 60, valve body assembly, 61...first valve body part, 62...second valve body part, 63...passage, 70...elastic water sealing part, 71...tubular part, 72...stopper, 73...knob, 74...seal ring, 80...float, 81...sealing material, 90...drain end, 91...drain segment, 104...open slot.

Claims

1. a tank assembly in which a cavity for storing water is formed; a humidification assembly including a blower component and an atomizing component for atomizing the water in the cavity to form a mist, the humidification assembly being detachably attached to the tank assembly as a whole; humidifier.

2. The blower part is for transporting an airflow toward the atomizing part along a first direction, and after the airflow reaches the atomizing part, driving the mist to flow into a room along a second direction, the first direction being a radial direction of the blower part; The humidification device according to claim 1.

3. The humidification assembly further includes an air passage wall connecting the blower part and the atomization part, the air passage wall forming an air passage for communicating the room, and allowing the mist to flow into the room along the air passage. The humidifier according to claim 1 or 2.

4. The air passage wall extends in a vertical direction, the blower part is located at an upper end of the air passage wall, and the atomizing part is located at a lower end of the air passage wall. The humidifier according to claim 3.

5. the air passage includes a first air blowing segment and a second air blowing segment arranged in order along an air blowing direction, the air intake of the first air blowing segment and the air exhaust of the second air blowing segment are both located at an upper end of the air passage wall, the blower component is provided at the air intake of the first air blowing segment, an adjacent portion between the first air blowing segment and the second air blowing segment is located at a lower end of the air passage wall, and the atomization component is provided. The humidifier according to claim 4.

6. The humidifier further includes a guide ring provided in the second blowing segment, located above the atomizing component, and having a through hole extending along the vertical direction. The humidifier according to claim 5.

7. The atomizing part includes a vibrating piece, The inner diameter of the vibrating element is R, and the inner diameter of the through hole is 1.1R or more and 1.5R or less, and / or The pitch between the bottom of the guide ring and the upper side of the vibrating arm is 20 mm or more and 40 mm or less, and / or The dimension of the through hole in the vertical direction is 10 mm or more and 20 mm or less. The humidifier according to claim 6.

8. A plurality of drain ribs are protrudingly provided on an upper side of the guide ring, and the plurality of drain ribs are distributed at intervals along a circumferential direction of the through hole. The humidifier according to claim 6.

9. The number of the drain ribs is 4 or more and 9 or less. The humidification device according to claim 8.

10. The tank assembly includes a water tank that forms the cavity with an open top, and a lid that covers the top of the water tank, the lid having a mist outlet formed therein, the mist outlet communicating with the air passage so that the mist flows through the mist outlet into the room. The humidifier according to any one of claims 4 to 9.

11. The mist outlet has an elongated shape, and the width of the mist outlet is 4 mm or more and 7 mm or less. The humidification device according to claim 10.

12. A mist separating material is provided between the atomizing part and the mist outlet, and a projected area of ​​the mist passage in the vertical direction of the mist separating material is S, and a projected area of ​​the mist separating material in the vertical direction is 0.5S or more. The humidification device according to claim 10.

13. The humidification assembly is interposed between the cover and the water tank, and at least a portion of the humidification assembly is accommodated in the cavity. The humidification device according to claim 10.

14. The cavity includes a first accommodating cavity and a second accommodating cavity spaced apart from each other in a horizontal direction, a valve body assembly is provided between the first accommodating cavity and the second accommodating cavity, the cover body is provided with a water addition port corresponding to an upper portion of the first accommodating cavity, the humidification assembly is at least partially accommodated in the second accommodating cavity, and the mist outlet is located above the second accommodating cavity. A humidification device according to claim 13.

15. A valve body assembly for use in the humidifier according to any one of claims 1 to 14, comprising: The valve body assembly is disposed between a first receiving cavity and a second receiving cavity of a humidifier; The valve body assembly includes: a first valve body part defining a passage for communicating the first accommodating cavity with the second accommodating cavity; a second valve body part rotatably provided with respect to the first valve body part, the second valve body part including a float for rising and falling with a change in the water level in the second accommodating cavity, and a sealant for rotating between a first operating position and a second operating position with the rising and falling of the float, closing the passage at the first operating position and opening the passage at the second operating position, Valve body assembly.

16. The second valve body part has a rotating end and a free end that rotates up and down around the rotating end, the float is provided at the free end, and the seal is located between the rotating end and the free end.

16. The valve body assembly of claim 15.

17. the first valve body part includes an elastic water sealing part in which the passage is formed, the seal abuts against a drain end of the passage in the first operating position, and the elastic water sealing part deforms under pressure; 17. The valve body assembly of claim 16.

18. the passage has a drainage segment extending vertically adjacent to the drainage end, the seal is located below the drainage segment and abuts upwardly against the drainage segment in the first operating position, and an inner diameter of the drainage segment is configured to gradually expand at least partially from top to bottom and then gradually contract.

18. The valve body assembly of claim 17.

19. the first valve body part is removably attached to a spacer between the first receiving cavity and the second receiving cavity; 19. A valve body assembly according to claim 17 or 18.

20. the first valve body part has an attachment portion, the second valve body part has an attachment engagement portion, and the second valve body part is rotatably attached to the first valve body part by engagement between the attachment portion and the attachment engagement portion.

20. The valve body assembly of claim 19.

21. One of the mounting portion and the mounting engagement portion is a pivot shaft, and the other is an open slot for engaging the pivot shaft.

21. The valve body assembly of claim 20.

22. the first valve body part includes a tubular part that is inserted into the through hole of the spacer to have a first end located in the first accommodating cavity and a second end located in the second accommodating cavity, the elastic water sealing part is provided at the second end, and the elastic water sealing part is removably inserted into the tubular part; 20. The valve body assembly of claim 19.

23. a stopper is protruding from an outer periphery of the tubular portion, and the first valve body part further includes a fixing portion, the fixing portion removably connecting the first end such that the spacer is engaged between the fixing portion and the stopper.

23. The valve body assembly of claim 22.

24. The fixing portion is a knob that is screwed onto the first end.

24. The valve body assembly of claim 23.

25. A seal ring is fitted on the outside of the tubular portion to be disposed between the tubular portion and the spacer.

23. The valve body assembly of claim 22.

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