CN214619916U - Launching control device and humidifier - Google Patents

Abstract

The utility model provides a offal controlling means and humidifier, offal controlling means are used for installing on the water tank of humidifier, the water tank has the mouth of a river down, and offal controlling means includes water cover, first seal structure, second seal structure, relocation mechanism and lever coupling mechanism, and this lever coupling mechanism is including rotating the lever that sets up, the lever have first end and with the second end that first seal structure connects, second seal structure can use the first end of lever makes elevating movement is to first end to make first seal structure be elevating movement, so that first seal structure is sealed or is opened the mouth of a river down. The utility model discloses can take out more reasonable sealed scheme, can also cross the size in water cavity and effectively prolong water and stretch to the route and the time of water hole department through rational design, be favorable to ensureing whole sealing performance.

Description

Launching control device and humidifier

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to a offal controlling means and humidifier.

Background

The humidifier has the effects of infiltrating indoor air environment and improving indoor air quality, and in modern life, the humidifier becomes a necessity for people to live gradually. The upper water adding humidifier is a humidifier capable of adding water to the water tank from the upper part, and the water tank is easy to clean and is more and more popular and favored due to the convenience of adding water.

At present, the lower mouth of a river to the water tank is sealed to the adoption single valve body seal structure of the humidifier that adds water in the overwhelming majority, prevents that the water in the water tank from leaking to the structure that is arranged in the water tank below through this lower mouth of a river, and this kind of sealing means, its sealing performance is inefficacy easily, and sealed effect is not good.

Based on this, some upper water adding humidifiers also adopt a double-valve-body sealing mode, namely two sections of sealing structures are arranged below a lower water opening, the two sections of sealing structures share one ejector rod capable of lifting, meanwhile, two sealing silica gels are arranged on the ejector rod, and the two sealing silica gels are driven to lift through the ejector rod to realize sealing. Although the sealing performance can be improved to a certain extent by adopting the double-valve-body sealing mode, the defect that two sealing silica gels can be lifted synchronously and the strokes of the two sealing silica gels are consistent exists, so that the effect which can be embodied by the sealing mode can only stay on the superimposed layer of the two sections of sealing structures, the two sections of sealing structures are substantially superimposed by the single-valve-body sealing structure, the single-valve-body sealing structure respectively works in the inherent sealing mode, and the sealing effect is still not remarkable.

SUMMERY OF THE UTILITY MODEL

The utility model provides a offal controlling means and humidifier aims at improving the sealing performance of humidifier.

According to a first aspect, there is provided in an embodiment a drain control device for mounting to a water reservoir of a humidifier, the water reservoir having a drain opening, comprising:

the water cover sealing cover is arranged below a lower water gap of the water tank and is enclosed with the water tank to form a water passing cavity, a water passing hole is formed in the bottom of the water passing cavity, and the water passing hole and the lower water gap are mutually staggered in the vertical direction;

the first sealing structure is arranged at the lower water outlet;

the second sealing structure is arranged at the water through hole;

the floating mechanism can act on the second sealing structure and drive the second sealing structure to do lifting movement so as to enable the second sealing structure to seal or open the water through hole;

and the lever connecting mechanism comprises a lever which is rotatably arranged, the lever is provided with a first end and a second end connected with the first sealing structure, the second sealing structure can act on the first end of the lever to enable the first end to do lifting motion, and therefore the first sealing structure does lifting motion to enable the first sealing structure to seal or open the drainage port.

In some embodiments of the launch control device, the pivot axis of the lever is proximate the first end and the pivot axis of the lever is proximate the second end.

In some embodiments of the sewage control device, the lever connection mechanism includes a support fixedly disposed on an inner wall of the water passing cavity, the support is formed with a rotation shaft hole, the lever has a rotation shaft rotatably mounted in the rotation shaft hole, and the rotation shaft is inserted into the rotation shaft hole to realize the rotary connection of the support and the lever.

In some embodiments of the downcomer control apparatus, the first sealing structure includes a first poppet valve stem movably disposed in the downcomer opening and a first seal mounted on the first poppet valve stem for sealing the downcomer opening, the first poppet valve stem being connected to the second end; the second sealing structure comprises a second lifting valve rod movably arranged in the water passing hole and a second sealing piece arranged on the second lifting valve rod and used for sealing the water passing hole, and the floating mechanism can act on the second lifting valve rod.

In some embodiments of the sewage control apparatus, the first sealing structure further comprises a first elastic member, the outer wall of the first lift valve rod extends outwards along the radial direction to form a first flange, and the first elastic member is connected between the first flange and the water tank and used for providing resetting power for the first lift valve rod; the second sealing structure further comprises a second elastic piece, a second flange extends outwards along the radial direction from the outer wall of the second lifting valve rod, and the second elastic piece is connected between the second flange and the water cover and used for providing resetting power for the second lifting valve rod.

In some embodiments of the sewage control device, the first sealing element is installed at one end of the first lifting valve rod positioned in the water passing cavity, the second sealing element is installed at one end of the second lifting valve rod positioned in the water passing cavity, and the first elastic element and the second elastic element are both positioned outside the water passing cavity.

In some embodiments of the launch control device, the second seal abuts below the first end in a manner that enables separation from the first end, and the first poppet valve stem passes through the first seal and is fixedly connected to the second end.

In some embodiments of the drain control device, the bottom of the water cover has a recess, the water through hole opens in a bottom wall of the recess, and the second sealing member has a ring of second sealing outer edge capable of being sealingly fitted in the recess.

In some embodiments of the drain control apparatus, the water cover includes a peripheral wall and a bottom wall, the water through hole is opened on the bottom wall and adjacent to the peripheral wall, and the drain opening is also adjacent to the peripheral wall and located at an end opposite to the water through hole, so that a projection of the drain opening on the bottom wall has a maximum distance from the water through hole.

According to a second aspect, an embodiment provides a humidifier comprising a water tank, and a drain control apparatus according to the first aspect.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

according to the drainage control device and the humidifier in the embodiment, the lever connecting mechanism is arranged between the first sealing structure and the second sealing structure, the lever in the lever connecting mechanism is used as the power transmission structure between the first sealing structure and the second sealing structure, and the lever has the effect of changing displacement and moment, so that the lifting strokes of the first sealing structure and the second sealing structure can be different, or the acting force on the first sealing structure and the second sealing structure is changed, and a more reasonable sealing scheme is favorably assembled. On the other hand, the embodiment of the utility model provides an in lower mouth of a river staggers each other with the water hole, still is formed with the water cavity of crossing simultaneously between water lid and water tank, makes from this even first seal structure became invalid, water also can flow into the water cavity of crossing, crosses the size in water cavity and effectively prolongs water and stretch to the route and the time of water hole department through rational design this moment, is favorable to guaranteeing whole sealing performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

fig. 1 shows a schematic structural diagram of a humidifier provided according to an embodiment of the present invention;

fig. 2 shows an exploded schematic view of the humidifier of fig. 1;

FIG. 3 shows a cross-sectional view of the humidifier of FIG. 1;

FIG. 4 shows a cross-sectional view of the water tank and the drain control device of the humidifier of FIG. 1;

fig. 5 shows a partial enlarged view at a in fig. 4.

Description of the main element symbols:

100-water cover; 200-a first sealing structure; 300-a second sealing structure; 400-a floating mechanism; 500-lever linkage; 101-a water passing cavity; 102-water through holes; 103-a recess; 110-a peripheral wall; 120-a bottom wall; 210-a first poppet stem; 220-a first seal; 230-a first elastic member; 310-a second poppet stem; 320-a second seal; 330-a second elastic member; 410-floating ball; 420-a pool cue; 510-a lever; 520-a support; 211 — a first recess; 212-a first flange; 221-a first seal perimeter; 222-a first engaging portion; 311-chuck; 312 — a second groove; 313-a second flange; 321-a second seal perimeter; 322-a second engaging portion; 323-wrapping; 511-a first end; 512-second end; 513-rotating axis; 514-a rotating shaft; 521-a rotating shaft hole;

10-a launch control device; 20-a base; 30-a water tank; 31-a water containing cavity; 32-drainage port.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The utility model provides a humidifier, it has good sealing performance, can avoid appearing the phenomenon of leaking under the normal operating condition, guarantees that the humidifier is permanent, work steadily.

Referring to fig. 1-3, in the embodiment of the present invention, the humidifier includes a base 20, a water tank 30 located above the base 20, and a drainage control device 10, a water containing cavity 31 is formed inside the water tank 30, a drainage opening 32 is opened at the bottom of the water tank 30, and water in the water containing cavity 31 can enter the base 20 through the drainage opening 32.

The base 20 and the water tank 30 are in sealed fit, and meanwhile, a control assembly (not shown in the drawings), an atomizing chamber (not shown in the drawings), and the like, which are necessary to design, are integrated in the base 20, the aforementioned drain 32 is communicated to the atomizing chamber, and meanwhile, the control assembly can control the atomizing assembly to atomize water in the atomizing chamber, so as to form a humidifying effect.

The control assembly, the atomizing assembly and the atomizing chamber are not described in detail herein, and the related design manner can refer to the related humidifier.

The launching control device 10 is arranged between the water tank 30 and the base 20, particularly between the launching port 32 and the atomizing cavity, and the launching control device 10 can sense the volume change of water in the atomizing cavity and generate displacement, so that the launching port 32 is sealed or opened.

Referring to fig. 2 to 5, the sewage control apparatus 10 includes a water cover 100, a first sealing structure 200, a second sealing structure 300, a floating mechanism 400, and a lever coupling mechanism 500.

The water cover 100 is arranged below the lower water opening 32 of the water tank 30 in a sealing manner, and encloses with the water tank 30 to form a water passing cavity 101, the bottom of the water passing cavity 101 is provided with a water passing hole 102, and the water passing hole 102 and the lower water opening 32 are mutually staggered in the vertical direction.

It should be understood that the water tank 30 and the base 20 are generally configured in an up-and-down manner during normal use of the humidifier, and therefore, the term "below" as used herein can be understood with reference to the gravity direction, which means that the overall level of the water cover 100 is lower than the water tank 30, and more precisely, the level of the water passing chamber 101 is lower than the level of the water outlet 32. The phrase "the water through hole 102 and the drain hole 32 are vertically staggered" means that the horizontal height of the water through hole 102 is lower than that of the drain hole 32, and the water in the water tank 30 has to pass through the drain hole 32 first and then the water through hole 102 to enter the atomizing chamber under the action of gravity, and meanwhile, the water passing through the drain hole 32 cannot directly enter the water through hole 102 but can pass through the water through hole 102 after spreading a distance.

It should be noted that, in the present invention, the directions of upper, lower, top, bottom, vertical, high, low, etc. are described, and the positions of the humidifier in the normal working state and placed on the horizontal plane are all used as the reference standard.

The first sealing structure 200 is provided at the drain opening 32, the second sealing structure 300 is provided at the water passing hole 102, and the first and second sealing structures 200 and 300 are combined with the drain opening 32 and the water passing hole 102, respectively, to form a double seal between the water tank 30 and the atomization chamber.

It should be noted here that in other possible embodiments, a third sealing structure, even a fourth sealing structure, may also be provided, so as to form a triple seal or a quadruple seal.

The floating mechanism 400 can act on the second sealing structure 300 and drive the second sealing structure 300 to perform an elevating motion so that the second sealing structure 300 seals or opens the water passing hole 102.

The floating mechanism 400 is a mechanism capable of sensing the change of the water volume, and referring to fig. 2, it generally includes a floating ball 410 and a floating ball rod 420 rotatably installed, the floating ball 410 can float on the water surface and is installed at one end of the floating ball rod 420, when the water volume in the atomizing chamber is small, the floating ball 410 will descend, and at the same time, the other end of the floating ball rod 420 will ascend, and the ascending end of the floating ball rod 420 can act on the second sealing structure 300 to drive the second sealing structure 300 to seal or open the water through hole 102.

Referring to fig. 2 and 3, the lever connecting mechanism 500 includes a lever 510 rotatably disposed, the lever 510 has a first end 511 and a second end 512 connected to the first sealing structure 200, and the second sealing structure 300 can act on the first end 511 of the lever 510 to make the first end 511 perform a lifting motion, so that the first sealing structure 200 performs a lifting motion to seal or open the drain 32 by the first sealing structure 200.

In the embodiment of the present invention, since the lever connection mechanism 500 is provided between the first sealing structure 200 and the second sealing structure 300, the lever 510 in the lever connection mechanism 500 is used as the power transmission structure between the first sealing structure 200 and the second sealing structure 300, and the lever 510 has the effect of changing the displacement and the moment, so that the lifting stroke of the lifting of the first sealing structure 200 and the second sealing structure 300 is different, or the acting force received by the first sealing structure 200 and the second sealing structure 300 is changed, thereby being beneficial to matching a more reasonable sealing scheme. On the other hand, the embodiment of the utility model provides an in lower mouth of a river 32 staggers each other with water hole 102, still is formed with water cavity 101 simultaneously between water cover 100 and water tank 30, makes even first seal structure 200 became invalid from this, water also can flow into water cavity 101, crosses the size of water cavity 101 through rational design and effectively prolongs the route and the time that water stretches to water hole 102 department this moment, is favorable to guaranteeing whole sealing performance.

It should be emphasized here that when the lever connecting mechanism 500 is required to exert the above-mentioned effect of changing the displacement and the moment, the distances from the first sealing structure 200 and the second sealing structure 300 to the rotation axis 513 of the lever 510 cannot be the same, otherwise the transmission of the displacement and the moment of the first sealing structure 200 and the second sealing structure 300 is not changed. However, it is understood that the distances from the first sealing structure 200 and the second sealing structure 300 to the rotation axis 513 of the lever 510 may be designed to be the same, and at this time, the lever connection mechanism 500 may also be designed to be mutually staggered in the vertical direction with the water passing hole 102 and the drain 32, so as to effectively extend the path and time for water to spread to the water passing hole 102.

It should be understood that the lever connection mechanism 500 is preferably arranged such that the rotation axis 513 of the lever 510 is not located at the middle position between the first end 511 and the second end 512, thereby improving the performance of the sealing device.

For example, in some preferred embodiments, the pivot 513 of the lever 510 is located near the first end 511, without referring to fig. 3-5, when the second sealing structure 300 is applied to the first end 511 of the lever 510 to lift the first end 511, the second end 512 of the lever 510 is lowered by a larger downward stroke than the upward stroke of the first end 511, so as to drive the first sealing structure 200 to fit more closely to the drain opening 32, thereby improving the sealing performance.

Furthermore, the drain 32 is directly associated with the water reservoir 30, and the water in the water reservoir 30 directly enters the drain 32, so that the arrangement of the lever 510 in this type of embodiment is more suitable. In particular, such an embodiment is more effective when the diameter of the lower nozzle 32 is larger.

For another example, in other preferred embodiments, the rotation axis 513 of the lever 510 is close to the second end 512, and it can be understood that the force applied to the first end 511 by the second sealing structure 300 is transmitted to the first sealing structure 200 through the second end 512, and the torque is changed, so that the acting force received by the first sealing structure 200 is larger, and therefore, for the first sealing structure 200, a more suitable material can be selected, and the material has higher pressure resistance, and at this time, the material is deformed by the larger acting force, so that the drain opening 32 is easier to seal, and the sealing performance can also be improved. On the other hand, in the other preferred embodiments, the transmission of force is made more sensitive, particularly with respect to the first sealing structure 200, which can timely and accurately open or seal the drain opening 32.

In one embodiment, referring to fig. 2-5, the lever connection mechanism 500 includes a support 520 fixedly disposed on the inner wall of the water passing chamber 101, the support 520 is formed with a rotation shaft hole 521, the lever 510 has a rotation shaft 514 rotatably mounted in the rotation shaft hole 521, and the rotation shaft 514 is inserted into the rotation shaft hole 521 to realize the rotation connection between the lever 510 and the support 520.

Specifically, the holder 520 may be fixedly mounted to the bottom of the water tank 30 by a fastening member such as a screw, and the holder 520 may be integrally formed. The lever 510 may be designed as a rod-shaped structure with a circular cross section, or may be designed as a sheet-shaped structure as a whole, or may be of other structures, a pair of rotating shafts 514 extends from a pair of opposite sides of the lever 510, and the rotating shafts 514 can be clamped into the rotating shaft holes 521, so as to achieve the installation of the lever 510 on the support 520.

In the example shown in fig. 2-5, the lever 510 has a more regular structure, and the whole body has a straight rod shape extending continuously from front to back, but it should be understood that in other embodiments not shown, the lever 510 may have an irregular structure, for example, when the space between the water tank 30 and the atomizing chamber is compact, or for the purpose of facilitating the structural layout, the lever 510 may have a bent structure, similar to a "n" shape or other shapes, which generally needs to be formed by extending in different directions through several paths.

In one embodiment, referring to fig. 2-5, the first sealing structure 200 includes a first poppet valve stem 210 movably disposed in the drain 32, and a first seal 220 mounted on the first poppet valve stem 210, the first poppet valve stem 210 being connected to the second end 512.

More specifically, the first poppet valve stem 210 passes through the first seal 220 and is fixedly coupled to the second end 512.

The first lifting valve rod 210 carrying the first sealing element 220 is lifted and lowered through the second end 512, so that the first sealing element 220 can seal or open the drain 32.

In some embodiments, the first lifter bar 210 is made of a material that is not easily corroded or rusted, such as stainless steel or plastic, but for the convenience of the second end 512 driving the first lifter bar 210 to move, the first lifter bar 210 is preferably made of a light-weight plastic material.

In some embodiments, referring to fig. 3 to 5, the first lift valve rod 210 is a rod-shaped structure and is vertically disposed, so that the lift process of the first lift valve rod 210 can be smoother, the first sealing member 220 is made of rubber or silica gel and is tightly connected to an end of the first lift valve rod 210, and a circle of first sealing outer edge 221 extends from a periphery of the first sealing member 220 for cooperating with a periphery of the drain 32 to achieve an optimal sealing effect.

To improve the connection reliability of the first poppet stem 210 and the first packing 220, the first poppet stem 210 is formed with a first groove 211, while the first packing 220 has a first catching portion 222 that can catch into the first groove 211, thereby enabling the first packing 220 to be tightly fitted on the first poppet stem 210.

Further, in some more specific embodiments, referring to fig. 3-5, the first sealing structure 200 further comprises a first resilient member 230, the outer wall of the first poppet valve stem 210 having a first flange 212 extending radially outward, the first resilient member 230 being coupled between the first flange 212 and the tank 30 for providing a return power to the first poppet valve stem 210.

After the floating mechanism 400 drives the first lift valve stem 210 to descend through the second end 512 of the lever 510, the first elastic member 230 is compressed between the first flange 212 and the tank 30 such that the first elastic member 230 accumulates a certain elastic restoring force, which can automatically drive the first lift valve stem 210 to ascend.

In one embodiment, referring to fig. 2-5, the second sealing structure 300 includes a second poppet valve stem 310 movably disposed in the water through hole 102 and a second sealing member 320 mounted on the second poppet valve stem 310, and the floating mechanism 400 is capable of acting on the second poppet valve stem 310.

More specifically, the second seal 320 abuts below the first end 511 so as to be separable from the first end 511.

Here, the second lift valve rod 310 carrying the second sealing member 320 is driven to lift by the floating mechanism 400, so that the second sealing member 320 can seal or open the water through hole 102.

In some embodiments, the second poppet valve stem 310 is made of a material that is not prone to corrosion or corrosion, such as stainless steel or plastic, but in order to facilitate the floating mechanism 400 to drive the second poppet valve stem 310 to move, the second poppet valve stem 310 is preferably made of a lightweight plastic material. The second lifting valve rod 310 is integrally of a rod-shaped structure and is vertically arranged, the second sealing member 320 is made of rubber or silica gel and the like and is tightly connected to the end of the second lifting valve rod 310, and a circle of second sealing outer edge 321 extends from the periphery of the second sealing member 320 and is used for being matched with the periphery of the water through hole 102 to achieve the best sealing effect.

In order to improve the connection reliability of the second lift valve stem 310 and the second packing 320, the end of the second lift valve stem 310 is formed with a collet 311, and a second groove 312 is formed below the collet 311, and the second packing 320 has a second engaging portion 322 capable of engaging with the second groove 312 and a wrapping portion 323 wrapping the outer circumference of the collet 311, thereby enabling the second packing 320 to be tightly fitted on the second lift valve stem 310, and the wrapping portion 323 also functions to jack up the first end 511 of the lever 510.

Further, in some more specific embodiments, referring to fig. 3 to 5, the second sealing structure 300 further includes a second elastic member 330, an outer wall of the second lift valve rod 310 extends radially outward to form a second flange 313, and the second elastic member 330 is connected between the second flange 313 and the water cover 100 for providing the return power to the second lift valve rod 310.

After the floating mechanism 400 drives the second lift valve rod 310 to ascend, the second elastic member 330 is compressed between the second flange 313 and the water cap 100 so that the second elastic member 330 accumulates a certain elastic restoring force, which can automatically drive the second lift valve rod 310 to descend, thereby releasing the connection between the floating mechanism 400 and the second sealing structure 300, so that the floating mechanism 400 and the second sealing structure 300 are not directly connected, and the second sealing structure 300 can also realize the ascending and descending movement of the second sealing structure 300.

As can be appreciated from the foregoing, the first seal structure 200 and the second seal structure 300 are substantially similar in structure, but have different directions of movement when sealing is achieved. Referring to fig. 5, in the first sealing structure 200, the drain port 32 is opened when it performs a descending motion, whereas the drain port 32 is sealed when it performs an ascending motion. With the second sealing structure 300, the water passage hole 102 is sealed when it performs a descending motion, whereas the water passage hole 102 is opened when it performs an ascending motion.

In addition, as for the first elastic member 230 and the second elastic member 330, in the above-listed embodiments, the first elastic member 230 and the second elastic member 330 both accumulate elastic restoring force by contraction thereof, but it is understood that the elastic restoring force may be accumulated by extending the coupling position of the first elastic member 230 and the second elastic member 330, and in the case of the second elastic member 330, it may be designed such that one end thereof is coupled to the water cap 100 and the other end thereof is coupled to the inner wall of the base 20 or the like, so that when the second sealing structure 300 is lifted, the second elastic member 330 is extended to accumulate elastic restoring force.

In some preferred embodiments, referring to fig. 5, the first sealing element 220 is installed at one end of the first lifting valve rod 210 located in the water passing chamber 101, the second sealing element 320 is installed at one end of the second lifting valve rod 310 located in the water passing chamber 101, and the first elastic element 230 and the second elastic element 330 are both located outside the water passing chamber 101.

Therefore, when the first sealing element 220 and the second sealing element 320 are respectively sealed at the drain opening 32 and the water passing hole 102, the first sealing element 220 and the second sealing element 320 are both positioned in the water passing cavity 101, the first sealing element 220 and the second sealing element 320 are hidden in the water passing cavity 101, the first sealing element 220 and the second sealing element 320 can be well protected, meanwhile, the whole structure is more compact, and the sealing performance can be improved to a certain extent; on the other hand, when the first sealing member 220 and the second sealing member 320 open the drain port 32 and the water through hole 102, respectively, the vertical distance between the first sealing member 220 and the second sealing member 320 is the shortest, so that the water can flow downwards quickly and timely, and the water shortage state of the humidifier can be changed quickly.

In addition, the arrangement of the first sealing rim 221 and the second sealing rim 321 is also considered in consideration of the direction of the water flow, and with continued reference to fig. 5, the first sealing rim 221 has a slope with a transition from high to low, which is also beneficial for guiding the water to flow downwards.

The second sealing rim 321 can play a better role in sealing the second sealing member 320 in the water passing hole 102.

Specifically, referring to fig. 5, the bottom of the water cap 100 has a recess 103, the water through hole 102 is opened at the bottom wall of the recess 103, and the second sealing rim 321 can be sealingly engaged with the recess 103.

It can be understood that, when the water flow enters the recess 103, it is first blocked by the second sealing edge 321 to enter the recess 103 and finally passes through the water through hole 102, and the above design of the second sealing edge 321 and the recess 103 can add a blocking effect to the water flow, so that the sealing performance is better.

In one embodiment, referring to fig. 2-5, the water cap 100 includes a peripheral wall 110 and a bottom wall 120, the water through hole 102 and the recess are formed on the bottom wall 120 and adjacent to the peripheral wall 110, and the drain port 320 is also adjacent to the peripheral wall 110 and located at an end opposite to the water through hole 102, such that a maximum distance is formed between a projection of the drain port 320 on the bottom wall 120 and the water through hole 102.

In order to facilitate understanding of the position relationship between the water through hole 102 and the drain opening 32, a cylindrical water cover 100 is taken as an example for description, in this case, the bottom wall 120 of the water cover 100 is a circular plate, the peripheral wall 110 of the water cover 100 is a circular ring vertically extending upward from the edge of the bottom wall 120, and accordingly, the water through cavity 101 is a cylindrical cavity, in this case, the water through hole 102 can be understood to be disposed at one end of the bottom wall 120 in a certain diameter direction, and the projection of the drain opening 32 is located at the other end in the diameter direction, so that the distance between the drain opening 32 and the water through hole 102 is farthest, which is beneficial to fully utilizing the space of the water through cavity 101, on one hand, the lever connection mechanism 500 is convenient to arrange, and on the other hand, the effect of prolonging the path and time for water to spread to the water through hole 102 can be maximized.

Of course, in other embodiments, the cover 100 may be modified in various ways, and the water through hole 102 and the drain opening 32 may be designed to have the maximum distance therebetween.

On the other hand, a baffle (not shown) or the like may be disposed on the surface of the bottom wall 120 on the side of the water passing cavity 101, a water storage cavity is defined between the baffle and the peripheral wall 110, and a water level monitoring device (e.g., a water level sensor) is disposed in the water storage cavity, so that the water storage cavity can not only receive water leaking from the drain 32 and collect water leakage in case of accidental failure of sealing performance, but also remind a user of water leakage through the water level monitoring device when water leakage is frequent or serious, so that the user can timely obtain water leakage information to take follow-up measures.

On the other hand, a water absorbing layer (not shown) may be disposed on the surface of the bottom wall 120 on the side of the water passing cavity 101, and may also serve to alleviate water leakage. The water-absorbing layer may be formed by the structure of the bottom wall 120 itself, for example, the surface of the bottom wall 120 is designed to be uneven, or the water-absorbing layer may be formed by using another component to be laid on the bottom wall 120.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. Launch controlling means, its characterized in that for install on the water tank of humidifier, the water tank has the mouth of a river down, includes:

the water cover sealing cover is arranged below a lower water gap of the water tank and is enclosed with the water tank to form a water passing cavity, a water passing hole is formed in the bottom of the water passing cavity, and the water passing hole and the lower water gap are mutually staggered in the vertical direction;

the first sealing structure is arranged at the lower water outlet;

the second sealing structure is arranged at the water through hole;

the floating mechanism can act on the second sealing structure and drive the second sealing structure to do lifting movement so as to enable the second sealing structure to seal or open the water through hole;

and the lever connecting mechanism comprises a lever which is rotatably arranged, the lever is provided with a first end and a second end connected with the first sealing structure, the second sealing structure can act on the first end of the lever to enable the first end to do lifting motion, and therefore the first sealing structure does lifting motion to enable the first sealing structure to seal or open the drainage port.

2. The launch control device of claim 1, wherein the pivot axis of said lever is proximate said first end or the pivot axis of said lever is proximate said second end.

3. The sewage control device of claim 1, wherein the lever connecting mechanism comprises a support fixedly arranged on the inner wall of the water passing cavity, the support is formed with a rotating shaft hole, the lever is provided with a rotating shaft which can be rotatably arranged in the rotating shaft hole, and the rotating shaft is inserted into the rotating shaft hole to realize the rotating connection of the lever and the support.

4. The downcomer control apparatus of any one of claims 1-3, wherein said first sealing structure includes a first poppet valve stem movably disposed in said downcomer opening and a first seal mounted on said first poppet valve stem for sealing said downcomer opening, said first poppet valve stem being connected to said second end; the second sealing structure comprises a second lifting valve rod movably arranged in the water passing hole and a second sealing piece arranged on the second lifting valve rod and used for sealing the water passing hole, and the floating mechanism can act on the second lifting valve rod.

5. The plumbing control arrangement of claim 4, wherein the first sealing arrangement further comprises a first resilient member, an outer wall of the first poppet stem extending radially outwardly with a first flange, the first resilient member being connected between the first flange and the tank for providing a return force to the first poppet stem; the second sealing structure further comprises a second elastic piece, a second flange extends outwards along the radial direction from the outer wall of the second lifting valve rod, and the second elastic piece is connected between the second flange and the water cover and used for providing resetting power for the second lifting valve rod.

6. The sewage control device of claim 5, wherein the first sealing element is mounted at one end of the first lifting valve rod positioned in the water passing cavity, the second sealing element is mounted at one end of the second lifting valve rod positioned in the water passing cavity, and the first elastic element and the second elastic element are both positioned outside the water passing cavity.

7. The launch control device of claim 4, wherein said second seal is detachably engageable below said first end, and said first lift valve stem passes through said first seal and is fixedly coupled to said second end.

8. The sewage control device of claim 6 wherein the bottom of the water cover has a recess, the water through hole opens in a bottom wall of the recess, and the second sealing member has a ring of second sealing rim which is capable of being sealingly engaged in the recess.

9. The sewage control apparatus of any one of claims 1 to 3, wherein the water cover includes a peripheral wall and a bottom wall, the water through hole opens on and adjacent to the peripheral wall, and the drain port is also adjacent to the peripheral wall and located at an end opposite to the water through hole such that a projection of the drain port on the bottom wall has a maximum distance from the water through hole.

10. A humidifier comprising a water tank and a drain control apparatus as claimed in any one of claims 1 to 9.

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