CN218915217U - Upper water adding humidifier water tank and upper water adding humidifier - Google Patents

Abstract

The utility model discloses a water tank of an upper water adding humidifier and the upper water adding humidifier, which belong to the technical field of humidifiers, and comprise a water tank body with a water outlet at the bottom, a fog outlet cylinder vertically arranged in the water tank body, and a water valve assembly arranged in the water outlet, wherein the upper end of the fog outlet cylinder is connected with the top of the water tank body; a water filling port is formed in the top of the water tank body, and a sealing cover is detachably arranged on the water filling port; a closed space is formed between the outer wall of the mist outlet barrel and the water tank body. According to the utility model, the sealing cover is arranged on the water adding port of the water tank body, so that a closed space is formed between the outer wall of the mist outlet cylinder and the water tank body, and after the humidifier is added into the water tank body, the interior of the water tank body above the water surface is in a closed environment, thereby solving the problem that the water tank and the base of the existing water adding humidifier are easy to overflow due to poor sealing performance of the water tank.

Description

Upper water adding humidifier water tank and upper water adding humidifier

Technical Field

The utility model relates to the technical field of humidifiers, in particular to a water tank of an upper water adding humidifier and the upper water adding humidifier.

Background

The humidifier is divided into an upper water adding humidifier and a lower water adding humidifier, wherein the upper water adding humidifier has the advantage of convenient water adding and is popular with consumers. The existing upper water adding humidifier generally comprises a water tank and a base provided with an atomization cavity, wherein the bottom of the water tank is communicated with the atomization cavity through a water outlet, and a water valve and a water supplementing control mechanism for controlling the action of the water valve are arranged at the water outlet. When the water level of the atomizing cavity drops to a preset height, the water replenishing control mechanism upwards lifts the water valve, water in the water tank flows into the atomizing cavity, when the water level in the atomizing cavity rises to the preset height, the water valve resets, the sealing disc of the water valve plugs the water outlet, and therefore water in the water tank is prevented from continuously flowing into the atomizing cavity and the water level of the atomizing cavity is prevented from being too high.

However, when the humidifier is used for a long time, scale is easily accumulated at the bottom of the water tank, the water outlet cannot be completely blocked due to the existence of the scale between the sealing disc and the water tank (see fig. 14), and when the sealing performance inside the water tank is poor, water in the water tank can still flow into the atomizing cavity continuously under the action of self gravity, so that the problem of overflow occurs between the water tank and the base.

It can be seen that there is a need for improvements and improvements in the art.

Disclosure of Invention

In view of the shortcomings of the prior art, the utility model aims to provide a water tank of an upper water adding humidifier and the upper water adding humidifier, and aims to solve the problem that water is easy to overflow between the water tank and a base of the existing upper water adding humidifier.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the upper water adding humidifier water tank comprises a water tank body with a water outlet at the bottom, a mist outlet barrel vertically arranged in the water tank body, and a water valve assembly arranged in the water outlet, wherein the upper end of the mist outlet barrel is connected with the top of the water tank body; a water filling port is formed in the top of the water tank body, and a sealing cover is detachably arranged on the water filling port; a closed space is formed between the outer wall of the mist outlet barrel and the water tank body.

In the upper water adding humidifier water tank, the sealing cover comprises a first cover plate and a first annular wall; the first annular wall is arranged at the bottom of the first cover plate and downwards penetrates through the water adding port; the shape of the water adding port is matched with the shape of the first annular wall.

In the upper water adding humidifier water tank, the sealing cover further comprises a plurality of protruding blocks horizontally arranged on the outer side of the first annular wall; the convex blocks are circumferentially and equidistantly distributed on the outer side of the first annular wall; a convex ring is downwards arranged on the inner side of the top of the water tank body around the water inlet; grooves with the same number as the protruding blocks are formed in the inner side of the convex ring, and the grooves are circumferentially distributed on the inner side of the convex ring at equal intervals.

In the upper water adding humidifier water tank, a positioning block is arranged at the bottom of the convex ring, and the positioning block is arranged beside the groove.

In the upper water adding humidifier water tank, a sealing ring is sleeved on the first annular wall.

In the upper water adding humidifier water tank, the sealing cover comprises a second cover plate and a second annular wall arranged at the bottom of the second cover plate; the top of the water tank body surrounds the water filling port is provided with an annular coaming, and the second annular wall is in threaded connection with the outer side of the annular coaming.

The upper water adding humidifier water tank also comprises an outer cover which is arranged at the upper part of the water tank body in a covering way; the outer cover comprises an outer cover main body, a mist outlet outer cover arranged on the outer cover main body, a mist outlet upper cover arranged on the mist outlet outer cover, and a mist guide cover arranged at the bottom of the outer cover main body and positioned below the mist outlet outer cover; the mist outlet upper cover is provided with a mist outlet; the lower part of the mist guide cover is arranged at the top of the water tank body, and the mist guide cover is communicated with the mist outlet cylinder.

In the upper water adding humidifier water tank, a positioning cylinder is arranged at the top of the water tank body, and the positioning cylinder is in contact with the inner wall of the mist guide cover and is used for positioning the mist guide cover.

The utility model also provides an upper water adding humidifier, which comprises a base provided with an atomization cavity, an atomizer arranged at the bottom of the atomization cavity, a liquid level switch arranged in the atomization cavity, a water supplementing control mechanism arranged in the atomization cavity and a fan arranged at the bottom of the atomization cavity; the upper water adding humidifier water tank is detachably arranged on the base; the fan is used for supplying air to the mist outlet barrel, the atomizer is located below the mist outlet barrel, and the water supplementing control mechanism is used for jacking the water valve assembly.

In the upper water adding humidifier, a partition plate is vertically arranged in the atomizing cavity, and the partition plate divides the atomizing cavity into two cavities which are mutually communicated.

The beneficial effects are that:

the utility model provides a water tank of an upper water adding humidifier and an upper water adding humidifier, wherein the upper water adding humidifier comprises the water tank of the upper water adding humidifier and a base, a sealing cover is arranged on a water adding port of a water tank body, a closed space is formed between the outer wall of a mist outlet cylinder and the water tank body, after water is added into the water tank body by the humidifier, the inside of the water tank body above the water surface is in a closed environment, and the air pressure in the closed environment can be reduced along with the water flowing into an atomization cavity, so that the air pressure in the water tank body is smaller than the outside atmospheric pressure and the air pressure above the water surface in the atomization cavity, a water valve assembly can not completely seal a water outlet even if the water level of the atomization cavity rises to a preset height, and the water in the water tank body can not flow into the atomization cavity under the action of self gravity under the condition of pressure difference inside the water tank body, thereby solving the problem that the existing upper water adding humidifier is easy to overflow between the water tank and the base due to poor tightness of the water tank.

Drawings

Fig. 1 is a schematic structural diagram of an upper water humidifier according to the present utility model.

Fig. 2 is a schematic diagram of a structure of an upper water adding humidifier provided by the utility model.

Fig. 3 is a schematic structural view of the outer cover.

Fig. 4 is a schematic structural view of the outer cover.

Fig. 5 is a schematic structural view of the water tank body.

Fig. 6 is an enlarged view of a portion a in fig. 5.

Fig. 7 is a schematic diagram of a second structure of the water tank body.

Fig. 8 is a schematic view of the water valve assembly.

Fig. 9 is a schematic view of the installation of the sealing cover.

Fig. 10 is a schematic diagram of the structure of the water tank body.

Fig. 11 is a schematic structural view of a water tank body according to another embodiment.

Fig. 12 is a schematic structural view of the base.

Fig. 13 is a structural exploded view of the base.

Fig. 14 is a schematic diagram of the installation of a water valve at the bottom of a water tank of a conventional upper water humidifier.

Reference numerals:

1-a water tank body; 101-a water outlet; 102-a water adding port; 103-convex rings; 1031-grooves; 104-positioning blocks; 105-positioning cylinder; 106-a catheter;

2-a fog outlet cylinder;

3-sealing cover; 311-a first cover plate; 312-a first annular wall; 313-bump; 314-rotating the handle; 315-sealing ring;

321-a second cover plate; 322-a second annular wall;

a 4-water valve assembly; 401-a compression bar; 402-a force-bearing plate; 403-sealing disk; 404-a tray; 405-a spring;

5-an annular coaming;

6-an outer cover; 61-an outer cap body; 62-a mist outlet cover; 63-a fog outlet upper cover; 631-a mist outlet; 64-a mist guide cover;

7-a base; 71-an atomization chamber; 72-air outlet pipe; 73-a separator; 74-a shield; 75-drainage holes;

8-atomizer; 9-a liquid level switch; 10-a water replenishing control mechanism; 11-a fan; 12-a controller;

13-scale.

Detailed Description

The utility model provides a water tank of an upper water adding humidifier and the upper water adding humidifier, which are used for making the purposes, the technical scheme and the effects of the utility model clearer and more definite, and the utility model is further described in detail below by referring to the accompanying drawings and the embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.

As shown in fig. 5, 7 and 1, the present utility model provides an upper water humidifier water tank which is placed on a base 7 of the upper water humidifier both in use and in water addition. The upper water adding humidifier water tank comprises a water tank body 1 with a water outlet 101 at the bottom, a fog outlet cylinder 2 vertically arranged in the water tank body 1, and a water valve assembly 4 arranged in the water outlet 101; the upper end of the mist outlet barrel 2 is connected with the top of the water tank body 1 and is used for leading out water mist in the atomizing cavity 71 of the base 7 to be added into the water humidifier; the top of the water tank body 1 is provided with a water filling port 102, the water filling port 102 is detachably provided with a sealing cover 3, and a closed space is formed between the outer wall of the mist outlet barrel 2 and the water tank body 1.

The water valve assembly 4 can be a water valve structure commonly used in a water tank of an existing water-feeding humidifier.

According to the utility model, the sealing cover 3 is arranged on the water inlet 102 of the water tank body 1, so that a closed space is formed between the outer wall of the mist outlet barrel 2 and the water tank body 1, after the water for the humidifier is added into the water tank body 1, the inside of the water tank body 1 above the water surface is in a closed environment, and the air pressure in the closed environment can be reduced along with the water flowing into the atomization cavity 71, so that the air pressure in the water tank body 1 is smaller than the external atmospheric pressure and the air pressure above the water surface in the atomization cavity 71, even if the water level of the atomization cavity 71 rises to a preset height, the water valve assembly 4 cannot completely seal the water outlet 101, and under the condition that the pressure difference exists between the inside and the outside of the water tank body 1, the water in the water tank body 1 cannot flow into the atomization cavity 71 under the action of gravity, and the problem that the water tank and the base 7 of the existing water-adding humidifier are easy to overflow due to poor tightness of the water tank can be solved.

As shown in fig. 5, 6 and 8, in one embodiment, the water valve assembly 4 may also include the following structure: the water tank comprises a pressure rod 401, a force-bearing disc 402 arranged at the bottom of the pressure rod 401, a sealing disc 403 arranged at the top of the pressure rod 401, a tray 404 fixedly covered on the water outlet 101 (the tray 404 is positioned on the inner bottom of the water tank body 1), and a spring 405 sleeved on the pressure rod 401. The top of the pressing rod 401 penetrates into the water tank body 1 from the water outlet 101, so that the pressing rod 401 with the sealing disc 403 arranged at the top can be lifted by the tray 404, and when the pressing rod 401 is lifted by the tray 404, the sealing disc 403 can seal the tray 404, and therefore water in the water tank body 1 cannot enter into the water outlet 101 from an opening on the tray 404; when the atomization cavity 71 needs to be replenished with water, the pressure lever 401 can separate the sealing disc 403 from the tray 404 under the lifting of the water replenishing control mechanism 10, so that the water in the water tank body 1 can enter the water outlet 101 from the tray 404 and then flow into the atomization cavity 71 of the base 7.

In the above embodiment, the water outlet 101 of the water tank body 1 is not directly plugged by the sealing disc 403, but the water outlet 101 is fixedly covered by the conical tray 404, and the water in the water tank body 1 does not flow into the water outlet 101 by plugging the tray 404 by the conical tray 403, so that even if scale deposits in the water tank body 1, the scale does not affect the tightness of the sealing disc 403 to the upper part of the tray 404, and the water in the water tank body 1 flows into the atomizing cavity 71 when the atomizing cavity 71 does not need water replenishment.

Further, two ends of the spring 405 are respectively connected with the upper portion of the force-bearing disc 402 and the bottom of the sealing disc 403, when the pressure lever 401 is lifted up, the spring 405 is in a pressed state, and when the water level in the cavity of the atomizer 8 reaches a preset height, the water replenishing control mechanism 10 does not lift up the pressure lever 401 any more, the spring 405 can reset and pull the pressure lever 401 downwards, so that the sealing disc 403 can plug the tray 404 again, and water in the water tank body 1 cannot flow into the atomization cavity 71.

As shown in fig. 9 and 10, in one embodiment, the sealing cover 3 includes a first cover plate 311 and a first annular wall 312; the first annular wall 312 is disposed at the bottom of the first cover plate 311, and the shape of the water filling port 102 is adapted to the shape of the first annular wall 312. By designing the sealing cover 3 to be composed of the first cover plate 311 and the first annular wall 312, the sealing cover 3 is convenient to take and put. When the sealing cover 3 needs to be covered on the water filling port 102, the first annular wall 312 passes through the water filling port 102 downwards, and the first cover plate 311 is lifted by the top of the water tank body 1 and cannot fall into the water tank body 1.

Further, the sealing cover 3 further includes a plurality of protruding blocks 313 horizontally disposed outside the first annular wall 312; the protruding blocks 313 are circumferentially and equidistantly distributed on the outer side of the first annular wall 312; a convex ring 103 is arranged downwards around the water inlet on the inner side of the top of the water tank body 1; after the first annular wall 312 passes through the water filling port 102 downwards, the protruding block 313 and the lower part of the convex ring 103 can be kept in a clamped state, so that the sealing cover 3 is covered on the water filling port 102, the loosening problem can not occur, and the inside of the water tank body 1 can keep good sealing performance.

The inner side of the convex ring 103 is provided with grooves 1031 with the same number as the protruding blocks 313, and the grooves 1031 are circumferentially distributed on the inner side of the convex ring 103 at equal intervals. When the sealing cover 3 needs to be taken down from the water tank body 1, a user can rotate the sealing cover 3 to enable the protruding block 313 which is in a clamping connection state with the convex ring 103 to rotate to the lower side of the groove 1031, and when the groove 1031 is arranged to enable the user to lift the sealing cover 3 upwards, the protruding block 313 can penetrate out of the top of the water tank body 1 upwards, so that the sealing cover 3 is ensured to be taken down from the water tank body 1 smoothly. Preferably, in order to facilitate the user to rotate the sealing cover 3, a rotating handle 314 capable of being held by hand is provided on the upper portion of the first cover plate 311.

Further, a positioning block 104 is arranged at the bottom of the convex ring 103; the positioning block 104 is disposed beside the groove 1031, and the positioning block 104 is configured to position the protrusion 313, and when the protrusion 313 rotates below the groove 1031, the positioning block 104 can block the protrusion 313, thereby reminding a user that the sealing cover 3 does not need to be rotated again.

Further, a sealing ring 315 is sleeved on the first annular wall 312. The sealing ring 315 is an elastic sealing ring 315, which can improve the tightness of the sealing cover 3; in addition, when the sealing cover 3 is covered on the water inlet, the annular sealing ring 315 and the annular first annular wall 312 are in a mutually pressed state, so that the sealing cover 3 cannot loosen.

As shown in fig. 11, the present utility model also provides another structural form of the sealing cover 3, specifically, the sealing cover 3 includes a second cover plate 321 and a second annular wall 322 disposed at the bottom of the second cover plate 321, and an internal thread (not shown in the drawing) is disposed on the inner side of the second annular wall 322. When the sealing cover 3 in the structural form is adopted, the annular coaming 5 is arranged at the top of the water tank body 1 around the water filling port 102, and the second annular wall 322 can be in threaded connection with the outer side of the annular coaming 5, so that the sealing cover 3 can be taken and placed more conveniently, and the tightness of the sealing cover 3 cannot be deteriorated.

As shown in fig. 1 to 4, in one embodiment, the upper water humidifier water tank further includes an outer cover 6 covering the upper portion of the water tank body 1; the outer cover 6 comprises an outer cover main body 61, a mist outlet outer cover 62 rotatably arranged on the outer cover main body 61, a mist outlet upper cover 63 arranged on the mist outlet outer cover 62, and a mist guide cover 64 which can be buckled at the bottom of the outer cover main body 61 and is positioned below the mist outlet outer cover 62; the mist outlet upper cover 63 is provided with a mist outlet 631; the lower part of the mist guide cover 64 is arranged at the top of the water tank body 1, and the mist guide cover 64 is communicated with the mist outlet drum 2. In the embodiment, the outer cover 6 is covered on the water tank body 1, so that the sealing performance inside the water tank body 1 is better; in addition, the mist guide cover 64 is arranged between the outer cover main body 61 and the top of the water tank body 1, when the mist outlet cylinder 2 is used for discharging mist upwards, the mist can only be guided to the mist outlet outer cover 62 through the mist guide cover 64, so that the mist can not appear outside the mist guide cover 64, water can not remain on the top of the water tank body 1, and when the sealing performance of the sealing cover 3 is poor, the water mist can not enter the water tank body 1 through the water inlet, so that the sealing performance of the water tank body 1 is poor.

As shown in fig. 2, in one embodiment, a positioning cylinder 105 is disposed at the top of the water tank body 1, and when the outer cover 6 is covered on the upper portion of the water tank body 1, the positioning cylinder 105 is inserted into the mist guiding cover 64 and contacts with the inner wall of the mist guiding cover 64, so that the positioning cylinder 105 can perform a positioning function on the mist guiding cover 64, and in the process of installing the outer cover 6, the outer cover 6 can be quickly installed by means of positioning the mist guiding cover 64 by the positioning cylinder 105.

As shown in fig. 1, 12 and 13, the utility model also provides an upper water adding humidifier, which comprises a base 7 provided with an atomization cavity 71, an atomizer 8 arranged at the bottom of the atomization cavity 71, a liquid level switch 9 arranged in the atomization cavity 71, a water supplementing control mechanism 10 arranged in the atomization cavity 71 and a fan 11 arranged at the bottom of the atomization cavity 71; the water tank of the upper water adding humidifier is detachably arranged on the base 7; an air outlet pipe 72 positioned below the mist outlet barrel 2 is arranged in the atomizing cavity 71 of the base 7, and an air inlet of the air outlet pipe 72 is positioned above the fan 11.

Wherein, the fan 11 is used for supplying air to the mist outlet drum 2; the atomizer 8 can be an atomization sheet, and the atomizer 8 is positioned below the mist outlet cylinder 2; the water replenishing control mechanism 10 is a dynamic balance lever, and can swing and lift the water valve assembly 4 when the water level in the atomization cavity 71 is low, so that water in the water tank body 1 flows into the atomization cavity 71; the liquid level switch 9 may be a float liquid level switch, and the liquid level switch 9 is electrically connected with the controller 12, when the float liquid level switch 9 is triggered due to the too low water level in the atomization cavity 71, the controller 12 receives an electric signal sent by the float liquid level switch to turn off the atomizer 8, so that after the water in the atomization cavity 71 is completely evaporated, the situations that the atomizer 8 still generates heat and the upper water adding humidifier burns and damages can be avoided.

In the upper water adding humidifier provided by the utility model, the water tank body 1 has good sealing performance, so that the problem of overflow between the water tank body 1 and the base 7 can not occur when the upper water adding humidifier works for a long time.

When it is desired to replenish the atomizing chamber 71, the water valve assembly 4 is lifted by the replenishment control mechanism 10. After the water valve assembly 4 is lifted, water vapor (gas generated by a fan) in the atomizing cavity 71 can enter the water tank body 1 from the water outlet, so that the air pressure above the water surface in the water tank body 1 is increased, and when the air pressure above the water surface in the water tank body 1 is increased to be the same as the air pressure above the water surface in the atomizing cavity 71, the water in the water tank body 1 can flow into the atomizing cavity 71 under the action of self gravity, so that the water is supplemented to the atomizing cavity 71. When the water level in the atomization cavity 71 rises, water in the atomization cavity 71 can flow into the guide pipe 106 below the water outlet, so that the atomization cavity 7 cannot be communicated with the inside of the water tank body 1, and in the process that the water level in the atomization cavity 71 continuously rises, the air pressure above the water surface in the water tank body 1 is gradually reduced, air flow generated by a fan cannot enter the water tank body 1, and when the air pressure above the water surface in the water tank body 1 is smaller than the air pressure above the water surface in the atomization cavity 71, water in the water tank body 1 cannot flow into the atomization cavity 71.

As shown in fig. 12, in one embodiment, a partition plate 73 is vertically disposed in the atomizing chamber 71, and the partition plate 73 divides the atomizing chamber 71 into two chambers that are communicated with each other. The partition 73 is provided to prevent the water in the atomizing chamber 71 from frequently fluctuating when the upper water humidifier is in operation, thereby ensuring the accuracy of water level detection.

In one embodiment, as shown in fig. 13, a shield 74 is provided on the outer bottom of the atomizing chamber 71 around the blower 11. When the upper water adding humidifier works, if water and water mist in the atomization cavity 71 enter the base 7 below the atomization cavity 71 through the air outlet pipe 72, the shielding cover 74 can prevent the water from splashing on other electronic devices (such as the controller 12) outside the shielding cover 74, so that the electronic devices in the base 7 are protected from being wetted by the water, and the service life of the electronic devices is prolonged. In addition, a plurality of drain holes 75 are formed at the bottom of the base 7, and when water enters the base 7 below the atomizing chamber 71, the water can be rapidly discharged through the drain holes 75.

In summary, the utility model provides a water tank of an upper water adding humidifier and an upper water adding humidifier, the upper water adding humidifier comprises a water tank of an upper water adding humidifier and a base, a sealing cover is arranged on a water adding port of a water tank body, a closed space is formed between the outer wall of a mist outlet cylinder and the water tank body, after water for the humidifier is added into the water tank body, the interior of the water tank body above the water surface is in a closed environment, and the air pressure in the closed environment can be reduced along with the water flowing into an atomization cavity, so that the air pressure in the water tank body is smaller than the outside atmospheric pressure and the air pressure above the water surface in the atomization cavity, a water valve assembly can not completely seal a water outlet even if the water level of the atomization cavity rises to a preset height, and the water in the water tank body can not flow into the atomization cavity under the action of self gravity under the condition of pressure difference inside and outside the water tank body, thereby the problem of easy overflow between the water tank and the base of the existing upper water adding humidifier can be solved.

It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present utility model and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model as defined in the following claims.

Claims (10)

1. The upper water adding humidifier water tank comprises a water tank body with a water outlet at the bottom, a mist outlet barrel vertically arranged in the water tank body and a water valve assembly arranged in the water outlet, and is characterized in that the upper end of the mist outlet barrel is connected with the top of the water tank body; a water filling port is formed in the top of the water tank body, and a sealing cover is detachably arranged on the water filling port; a closed space is formed between the outer wall of the mist outlet barrel and the water tank body.

2. The add-on humidifier water tank of claim 1 wherein the seal cover comprises a first cover plate and a first annular wall; the first annular wall is arranged at the bottom of the first cover plate and downwards penetrates through the water adding port; the shape of the water adding port is matched with the shape of the first annular wall.

3. The upper feed humidifier water tank of claim 2 wherein the seal cover further comprises a plurality of projections horizontally disposed on the outside of the first annular wall; the convex blocks are circumferentially and equidistantly distributed on the outer side of the first annular wall; a convex ring is downwards arranged on the inner side of the top of the water tank body around the water inlet; grooves with the same number as the protruding blocks are formed in the inner side of the convex ring, and the grooves are circumferentially distributed on the inner side of the convex ring at equal intervals.

4. The water tank of the upper water adding humidifier according to claim 3, wherein a positioning block is arranged at the bottom of the convex ring, and the positioning block is arranged beside the groove.

5. A water tank for an upper-level humidifier as claimed in claim 3 wherein said first annular wall is provided with a sealing ring.

6. The upper feed humidifier water tank of claim 1, wherein the sealing cover comprises a second cover plate and a second annular wall provided at the bottom of the second cover plate; the top of the water tank body surrounds the water filling port is provided with an annular coaming, and the second annular wall is in threaded connection with the outer side of the annular coaming.

7. The upper water humidifier water tank as claimed in claim 1, further comprising an outer cover provided to cover an upper portion of the water tank body; the outer cover comprises an outer cover main body, a mist outlet outer cover arranged on the outer cover main body, a mist outlet upper cover arranged on the mist outlet outer cover, and a mist guide cover arranged at the bottom of the outer cover main body and positioned below the mist outlet outer cover; the mist outlet upper cover is provided with a mist outlet; the lower part of the mist guide cover is arranged at the top of the water tank body, and the mist guide cover is communicated with the mist outlet cylinder.

8. The water tank of the upper water adding humidifier according to claim 7, wherein a positioning cylinder is arranged at the top of the water tank body, and the positioning cylinder is in contact with the inner wall of the mist guiding cover and is used for positioning the mist guiding cover.

9. An upper water adding humidifier comprises a base provided with an atomization cavity, an atomizer arranged at the bottom of the atomization cavity, a liquid level switch arranged in the atomization cavity, a water supplementing control mechanism arranged in the atomization cavity and a fan arranged at the bottom of the atomization cavity; the water tank of the upper water adding humidifier is characterized by further comprising the water tank of the upper water adding humidifier according to any one of claims 1 to 7, wherein the water tank of the upper water adding humidifier is detachably arranged on the base; the fan is used for supplying air to the mist outlet barrel, the atomizer is located below the mist outlet barrel, and the water supplementing control mechanism is used for jacking the water valve assembly.

10. The add-on humidifier of claim 9, wherein a partition is vertically disposed in the atomizing chamber, the partition dividing the atomizing chamber into two chambers in communication with each other.

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