Water inlet structure and humidifier

Abstract

The water inlet structure comprises a water inlet valve arranged in a water inlet of a pumpless water circulation mechanism, the water inlet valve comprises a valve body, and an outlet end is arranged at the bottom of the valve body; one end of the valve plate is connected with the valve body through the flexible connecting piece, and the valve plate is used for being in sealing fit with the outlet end; and the abutting part is arranged on the side of the valve body. According to the water inlet structure and the humidifier, the pre-tightening force is provided through the abutting part, precise control over closing of the valve plate is achieved, and the problem of low water circulation efficiency caused by untimely sealing or untimely opening and closing of a water inlet valve structure in the prior art is effectively solved. Besides, the inclined surface is arranged on the outlet end surface of the water inlet valve, and the inclined convex ribs which are contacted with the valve plate and have the same inclination direction are arranged below the valve body, so that the valve plate is guided by the structure in the opening and closing process, and potential faults such as blockage or dislocation are avoided.

Description

Technical Field

[0001] This utility model relates to the field of humidifier technology, and in particular to a water inlet structure and a humidifier. Background Technology

[0002] In existing technology, humidifiers, as devices for regulating indoor air humidity, are widely used in homes and offices. Traditional humidifiers typically rely on a water pump to circulate water, drawing water from a tank and delivering it through pipes to an evaporator or wet curtain. A fan then accelerates airflow, causing the air to pass over the wet curtain to increase humidity. However, such humidifiers using water pumps have some inherent drawbacks and shortcomings. The use of a water pump increases manufacturing and maintenance costs. Whether it's a submersible pump or other types of pumps, a certain manufacturing cost is required. Furthermore, water pumps are prone to failure during long-term use, requiring maintenance or replacement, which undoubtedly increases user costs. To overcome the aforementioned shortcomings of humidifiers using water pumps for water circulation, some pump-less water circulation structures have emerged in recent years. These solutions typically utilize heating or other methods to generate power within the humidifier to drive water circulation.

[0003] However, the above-mentioned pumpless water circulation structure has certain shortcomings in terms of sealing and control accuracy. Utility Model Content

[0004] To solve the above problems, this utility model provides a water inlet structure with good water inlet valve sealing and a humidifier.

[0005] To achieve the above objectives, in a first aspect, embodiments of this application provide a water inlet structure applied to a pumpless water circulation mechanism, including a water inlet valve disposed within the water inlet of the pumpless water circulation mechanism, the water inlet valve comprising:

[0006] The valve body has an outlet end at its bottom;

[0007] A valve plate and a flexible connector, one end of the valve plate being connected to the valve body via the flexible connector, the valve plate being used for a sealing fit with the outlet end; and

[0008] An abutment portion is provided on the side of the valve body;

[0009] The flexible connector is located at least partially between the abutment and the valve body. The abutment applies a preload to the flexible connector, causing the valve plate to tend to press towards the outlet end.

[0010] Preferably, the upper part of the abutment portion is in close contact with the outer side wall of the valve body, and the lower part of the abutment portion has a clamping section extending toward the valve body. The clamping section abuts against one side of the flexible connector to apply a preload to the flexible connector.

[0011] Preferably, the end face of the outlet end is an inclined surface, which is inclined downward from the side where the flexible connecting piece is located to the side away from the flexible connecting piece; and the valve body is provided with an inclined convex rib in contact with the valve piece, and the inclined direction of the inclined convex rib is the same as the inclined direction of the end face of the outlet end.

[0012] Preferably, the inclined angle of the inclined convex rib is greater than the inclined angle of the end face of the outlet end.

[0013] Preferably, a filter screen is detachably installed in the water inlet.

[0014] Preferably, the valve piece is provided with a groove on the side away from the valve body.

[0015] Preferably, the valve body, the valve piece and the flexible connecting piece are integrally formed; and the connection position of the valve body and the flexible connecting piece is concave to form a space for accommodating the deformed flexible connecting piece.

[0016] Preferably, the pump-free water circulation mechanism comprises a water tank, a sealed cavity, a breathing valve and a heating pipe; the water inlet is arranged on the bottom surface of the water tank and communicates with the sealed cavity; the breathing valve is arranged on the top of the sealed cavity and is used for selectively communicating or cutting off the communication between the sealed cavity and the external space according to the pressure in the sealed cavity; and one end of the heating pipe is connected to the sealed cavity, and the other end is connected to the water outlet arranged on the bottom surface of the water tank.

[0017] Preferably, the bottom of the water tank is provided with a sunken part in communication with the water inlet; the top of the valve body is provided with a protrusion matched with the sunken part; and the protrusion is clamped in the sunken part to detachably connect the valve body and the water inlet.

[0018] In the second aspect, the embodiments of the present application provide a humidifier comprising the water inlet structure of any of the embodiments of the first aspect.

[0019] The water inlet structure and the humidifier provided by the present application realize the precise control of the closing of the valve piece by providing the pre-tightening force through the abutting part, and effectively avoid the problem of low water circulation efficiency caused by the sealing failure or the untimely opening and closing of the water inlet valve structure in the related art. In addition, by arranging the inclined surface on the outlet end face of the water inlet valve and arranging the inclined convex rib with the same inclined direction as the valve piece under the valve body, the valve piece is guided by the structure during the opening and closing process, and potential failures such as jamming or misalignment are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Fig. 1 is a structure schematic diagram of a pump-free water circulation mechanism provided by the embodiments of the present application.

[0021] Figure 2is Figure 1 a top view.

[0022] Figure 3 is Figure 2 a sectional view at A-A in

[0023] Figure 4 is Figure 2 a sectional view at B-B in

[0024] Figure 5 is Figure 3 an enlarged schematic view at C in

[0025] Wherein: water inlet 10, filter screen 11, water inlet valve 20, valve body 21, outlet end 211, protruding block 212, valve piece 22, recess 221, flexible connecting piece 23, abutting portion 24, inclined convex rib 30, accommodation space 40, water tank 50, water outlet 51, sunken portion 52, sealing cavity 60, breather valve 70, heating pipe 80, pump-free water circulation mechanism 100. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present application will be described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to explain and illustrate the present application, and are not used to limit the present application.

[0027] As Figures 1 to 5 shown, in a first aspect, the embodiments of the present application provide a water inlet structure, which comprises a water inlet valve 20 arranged in a pump-free water circulation mechanism 100 water inlet 10, and the water inlet valve 20 comprises a valve body 21, a valve piece 22, a flexible connecting piece 23 and an abutting portion 24. The bottom of the valve body 21 is provided with an outlet end 211; one end of the valve piece 22 is connected to the valve body 21 through the flexible connecting piece, and the valve piece 22 is used for sealing cooperation with the outlet end 211. The valve piece 22 can rotate and move between a first position and a second position, when the valve piece 22 is located at the first position, the valve piece 22 seals the outlet end 211, and when the valve piece 22 is located at the second position, the valve piece 22 is away from the outlet end 211; the abutting portion 24 is arranged beside the valve body 21; wherein the flexible connecting piece 23 is at least partially located between the abutting portion 24 and the valve body 21, and the abutting portion 24 is used for applying a pre-tightening force to the flexible connecting piece 23, so that the valve piece 22 has a tendency to press towards the outlet end 211, so that the valve piece 22 can better fit the outlet end 211 of the valve body when in action, and the arrangement of the abutting portion 24 improves the sealing performance of the valve piece 22, avoiding the situation that the valve piece 22 and the end face of the outlet end 211 do not fit tightly, and the sealing performance of the water inlet valve 20 is stable and the sealing performance is better.

[0028] Specifically, as Figure 5As shown, the upper part of the abutting portion 24 is in close contact with the outer side wall of the valve body 21, and the lower part of the abutting portion 24 has an abutting segment 25 extending towards the valve body 21, which abuts one side of the flexible connecting piece 23 to apply a pre-tightening force to the flexible connecting piece 23.

[0029] In particular, the water inlet structure is applied to the pump-free water circulation mechanism 100, which can be automatically opened or closed according to the change of pressure through the valve piece 22, so as to ensure that the pump-free water circulation mechanism 100 can maintain stable operation under various conditions.

[0030] Specifically, the pump-free water circulation mechanism 100 comprises a water tank 50, a sealed cavity 60, a breathing valve 70 and a heating pipe 80, the water inlet 10 is arranged at the bottom surface of the water tank 50 and communicates with the sealed cavity 60; the breathing valve 70 is arranged at the top of the sealed cavity 60 and is used for selectively communicating or cutting off the communication between the sealed cavity 60 and the external space; one end of the heating pipe 80 is connected to the sealed cavity 60, and the other end is connected to the water outlet 51 arranged at the bottom surface of the water tank 50.

[0031] In operation, the water tank 50 is arranged at the bottom of the humidifier, and the water inlet valve 20 is installed in the water inlet 11, with the valve plate 22 located in the sealed cavity 60 and configured to float up with the increase of the air pressure in the sealed cavity 60 to close the outlet end 211 of the water inlet valve 20. In use, the water tank 10 is filled with water to a certain water level, and the water pressure overcomes the pre-tightening force of the abutting part 24 on the flexible connecting piece 23, so that the water enters the sealed cavity 60 through the water inlet 11. When the heating pipe 80 is powered and heated, the water temperature in the sealed cavity 60 rises, and the vapor pressure in the sealed cavity 60 gradually increases with the rise of the water temperature and the generation of steam. When the air pressure in the sealed cavity 60 reaches a certain threshold, the valve plate 22 floats up to close the outlet end 211 of the water inlet valve 20, preventing more water from flowing into the sealed cavity 60. At this time, due to the pre-tightening force of the abutting part 24 on the flexible connecting piece 23, the valve plate 22 can be pressed against the end face of the outlet end 211 under the pressure more easily, avoiding the possibility of leakage due to the deformation of the connection between the valve plate 22 and the flexible connecting piece 23 not being in place. At the same time, the breathing valve 70 will close the communication between the sealed cavity 60 and the external space with the increase of the air pressure in the sealed cavity 60, preventing the escape of steam, so that the water in the sealed cavity 60 and the heating pipe 80 flows to the water outlet 51 under the action of the increasing steam pressure, and is finally discharged through the water outlet 51 for humidification. With the decrease of the water level in the sealed cavity 60, the space containing steam at the top of the sealed cavity 60 also gradually increases, and the pressure in the sealed cavity 60 gradually decreases. The valve plate 22 falls back under the pre-tightening force of the abutting part 24 to release the sealing cooperation with the outlet end 211, allowing new water to flow into the sealed cavity 60. At the same time, the breathing valve 70 will restore the communication with the external space with the decrease of the air pressure in the sealed cavity 60, preparing for the next cycle. In this way, the pump-free water circulation is realized, and the user is provided with a more quiet and comfortable environment without the need for a water pump.

[0032] In some embodiments, as Figure 3 、 Figure 5As shown, the end surface of the outlet end 211 is inclined, which inclines downward from the side where the flexible connecting member 23 is located to the side away from the flexible connecting member 23. That is, the height of the end of the outlet end 211 close to the flexible connecting member 23 is greater than the height of the end away from the flexible connecting member 23, thereby forming the inclined surface on the end surface of the outlet end 211. The inclined surface design can reduce the initial force required when the valve plate 22 is opened and closed, that is, when the valve plate 22 starts to move, the inclined surface provides a gradual contact point, so that the valve plate 22 can more easily start to move from the static state, and the inclined surface as a guide structure can ensure that the valve plate 22 gradually closes along the predetermined path, which helps the opening and closing of the valve plate 22 to be more accurate and consistent. A beveled protrusion 30 in contact with the valve plate 22 is arranged below the valve body 21, and the inclination direction of the beveled protrusion 30 is the same as the inclination direction of the end surface of the outlet end 211. When the valve plate 22 is opened, the design of the beveled protrusion 30 can provide reliable support force for the valve plate 22 in the open state without hindering the smooth discharge of water flow in the valve body 20, so as to effectively avoid the valve plate 22 from being excessively deformed due to its own gravity or water flow impact when it is in the open state for a long time, and avoid the situation that the deformed valve plate 22 is stuck and cannot rotate relative to the valve body 21, thereby effectively ensuring that the valve plate 22 can be reset in time and accurately when it needs to be closed. That is, if a flat support protrusion is arranged below the valve plate, the valve plate may be excessively deformed due to its own gravity or water flow impact, at which time the valve plate is stuck between the support protrusion and the valve body, and the valve plate cannot be rotated upward, so that the valve plate cannot close the outlet end of the lower end of the valve body and fails, and the use of the beveled protrusion 30 can avoid this situation.

[0033] In the present embodiment, the inclination angle of the beveled protrusion 30 is greater than the inclination angle of the end surface of the outlet end 211. Since the abutting portion 24 is used to apply a pre-tightening force to the flexible connecting member 23, the design of the greater inclination angle of the beveled protrusion 30 means that the valve plate 22 can be reset more quickly when the valve plate 22 needs to be opened.

[0034] In some embodiments, as shown in Figure 1 , Figure 5 The filter screen 11 can be simply and effectively installed in the water inlet 10. The filter screen 11 can effectively prevent various particulate impurities such as hair and fine particulate matter from entering the interior of the pump-free water circulation mechanism 100, thereby effectively protecting the normal operation of the circulation.

[0035] In some embodiments, as shown in Figure 5As shown, the valve plate 22 is provided with a groove 221 on the side away from the valve body 21. The groove 221 can reduce the self-weight of the valve plate 22, which makes the valve plate 22 more easily float under the action of pressure difference, and on the other hand, the groove structure 221 helps to more evenly guide the pressure to act on the central part of the valve plate 22, to ensure the stability of the valve plate 22 during opening and closing, and avoid the deviation or slip of the valve plate 22 caused by uneven pressure.

[0036] In some embodiments, as shown in Figure 5 As shown, the valve body 21, the valve plate 22 and the flexible connecting piece 23 are integrally formed; the connection position of the valve body 21 and the flexible connecting piece 23 is concave to form a space 40 for accommodating the deformed flexible connecting piece 23. The design of the integrated structure reduces the number of components and connection points in the assembly process, simplifies the manufacturing and assembly process, and also reduces the structural weakness caused by the separation of components, improves the durability and reliability of the valve; and the design of the space 40 allows the flexible connecting piece 23 to have enough space to stretch and contract when deformed due to temperature changes or pressure fluctuations, without affecting the sealing performance of the valve or causing structural damage.

[0037] In some embodiments, as shown in Figure 5 As shown, the water tank 50 is provided at the bottom with a sunken part 52 communicating with the water inlet 10; the valve body 21 is provided at the top with a protrusion 212 adapted to the sunken part 52; the protrusion 212 is clamped in the sunken part 52, so that the valve body 21 is detachably connected with the water inlet 10. Through the clamping connection of the protrusion 212 in the sunken part 52, the valve body 21 can be conveniently and quickly installed into the water inlet 10, and also facilitates the future disassembly and maintenance.

[0038] In a second aspect, the embodiments of the present application provide a humidifier comprising the water inlet structure of any of the first aspect. Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-mentioned humidifier can refer to the corresponding process in the foregoing water inlet structure embodiments, which will not be repeated here.

[0039] The water inlet structure and the humidifier provided by the embodiments can provide pre-tightening force through the abutting part, accurately control the closing of the valve plate, and effectively avoid the problem of low water circulation efficiency caused by poor sealing or untimely opening and closing of the water inlet valve structure in the related art. In addition, by providing a slope on the outlet end face of the water inlet valve and a slanted protrusion below the valve body with the same inclination direction as the valve plate, the valve plate is guided by the structure during opening and closing, avoiding potential failures such as jamming or misalignment.

[0040] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "vertical", "upper", "lower", "horizontal" and the like is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0041] In the description of the utility model, it is also necessary to explain that, unless explicitly specified and limited, the terms "arrange", "mount", "connect", "connect" should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0042] Finally, it should be pointed out that: the above only for the preferred embodiment of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A water inlet structure applied to a pumpless water circulation mechanism, comprising a water inlet valve arranged in a water inlet of the pumpless water circulation mechanism, characterized in that, The water inlet valve comprises: a valve body provided with an outlet end at the bottom; a valve plate and a flexible connecting member, one end of the valve plate being connected with the valve body through the flexible connecting member, the valve plate being used for sealing cooperation with the outlet end; and an abutting part arranged beside the valve body; wherein the flexible connecting member is at least partially located between the abutting part and the valve body, the abutting part being used for applying a pre-tightening force to the flexible connecting member, so that the valve plate has a tendency to press against the outlet end.

2. The water inlet structure according to claim 1, characterized by The upper part of the abutting part is in close contact with the outer side wall of the valve body, and the lower part of the abutting part has an abutting segment extending towards the valve body, the abutting segment being in abutment with one side of the flexible connecting member to apply a pre-tightening force to the flexible connecting member.

3. The water inlet structure according to claim 1, characterized by The end face of the outlet end is a bevel surface, which is inclined downward from the side where the flexible connecting member is located to the side away from the flexible connecting member; and a bevel convex rib in contact with the valve plate is arranged below the valve body, the inclination direction of the bevel convex rib being the same as that of the end face of the outlet end.

4. The water inlet structure according to claim 3, characterized by The inclination angle of the bevel convex rib is greater than that of the end face of the outlet end.

5. The water inlet structure according to claim 1, wherein A filter screen is detachably installed in the water inlet.

6. The water inlet structure according to claim 1, wherein The valve plate is provided with a groove on the side away from the valve body.

7. The water inlet structure according to claim 1, wherein The valve body, the valve plate and the flexible connecting member are integrally formed; and the connection position of the valve body and the flexible connecting member is concave to form a space for accommodating the deformed flexible connecting member.

8. A water inlet structure according to any one of claims 1-7, characterized in that The pump-free water circulation mechanism comprises a water tank, a sealed cavity, a breathing valve and a heating pipe, the water inlet is arranged at the bottom surface of the water tank and communicates with the sealed cavity; the breathing valve is arranged at the top of the sealed cavity and is used for selectively communicating or cutting off the communication between the sealed cavity and the external space according to the pressure in the sealed cavity; one end of the heating pipe is connected with the sealed cavity, and the other end is connected with the water outlet arranged at the bottom surface of the water tank.

9. The water inlet structure according to claim 8, characterized by The bottom of the water tank is provided with a sunken part in communication with the water inlet; the top of the valve body is provided with a protrusion matched with the sunken part; and the protrusion is clamped in the sunken part, so that the valve body and the water inlet are detachably connected.

10. A humidifier characterised in that, The water inlet structure comprises the water inlet structure according to any one of claims 1-9.

Images