CN213097520U

CN213097520U - Portable water dispenser

Info

Publication number: CN213097520U
Application number: CN202020546383.3U
Authority: CN
Inventors: 金军; 方曙光; 胡孟溪; 徐洋; 杨旭冬; 郑丽燕; 曹宇; 沈林; 陈烨
Original assignee: Ningbo Cixi Electrical Appliance Co ltd
Current assignee: Ningbo Cixi Electrical Appliance Co ltd
Priority date: 2020-02-15
Filing date: 2020-04-14
Publication date: 2021-05-04
Anticipated expiration: 2030-04-14

Abstract

A portable drinking machine comprises a shell with an opening at the upper end, wherein the upper part of the shell is provided with a water outlet nozzle extending outwards, the opening at the upper end of the shell is provided with an upper cover, and the upper cover is provided with a water filling port; the water heating assembly, the support and the control circuit board form a water heating module after an electric element in the water heating assembly is connected with the control circuit board, and the upper cover is covered at the upper end of the shell after the water heating module is placed in the shell. The utility model discloses on locating a support with the water heating assembly, the electric elements in the water heating assembly forms a water heating module after being connected with control circuit board, when assembling, only need with the water heating module put into the casing in the back upper cover lid establish the upper end of casing can, it is very simple and convenient to install.

Description

Portable water dispenser

Technical Field

The utility model relates to a portable water dispenser.

Background

The portable water dispenser is small in size and portable, and can heat water in bottled water for drinking when in use. The existing portable water dispenser usually adopts the structure that: the portable water dispenser comprises a shell with an opening at the upper end, wherein a water outlet nozzle extending outwards is arranged at the upper part of the shell, an upper cover is arranged on the opening at the upper end of the shell, and a water filling port is arranged on the upper cover and is used for adding water in bottled water into the portable water dispenser to be heated. The shell is internally provided with a water heating assembly and a control circuit board, the water inlet end of the water heating assembly is communicated with the water filling port, the water outlet end of the water heating assembly corresponds to the water outlet nozzle, and the heated water flows out of the water outlet nozzle.

The existing portable water dispenser also has the following problems: because the portable water diversion machine has a small volume, the assembly is very troublesome during production, and particularly, how to install the water heating assembly and the control circuit board in the shell.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior portable water dispenser, the utility model provides a portable water dispenser which is simple and convenient to assemble.

The utility model adopts the technical scheme that the portable water dispenser comprises a shell with an opening at the upper end, wherein the upper part of the shell is provided with a water outlet nozzle extending outwards, the opening at the upper end of the shell is provided with an upper cover, and the upper cover is provided with a water filling port;

the casing in be equipped with water heating assembly, control circuit board, the water inlet of water heating assembly with the filler UNICOM, the play water end of water heating assembly has the delivery port, this delivery port with the faucet correspond its characterized in that: the display screen is arranged on the upper cover;

the water heating assembly is arranged on a support, the control circuit board is positioned above the water heating assembly, after an electric element in the water heating assembly is connected with the control circuit board, the water heating assembly, the support and the control circuit board form a water heating module, and the upper cover is covered at the upper end of the shell after the water heating module is integrally arranged in the shell.

Further, the water heating assembly comprises a water path, wherein a water pump, a heating body and a water-vapor separator are sequentially arranged on the water path in the water flow direction, the water pump and the heating body are electrically connected with the control circuit board, and the water outlet is formed in the water-vapor separator.

Further, the water-vapor separator is positioned in the water outlet nozzle.

Furthermore, the support comprises an upper frame plate and a lower frame plate, a heating body sleeve is arranged between the upper frame plate and the lower frame plate, and the heating body is sleeved in the heating body sleeve.

Further, a water pump sleeve is further arranged on the lower frame plate, and the water pump is sleeved in the water pump sleeve.

Furthermore, the water inlet end and the water outlet end of the waterway upwards penetrate through the upper frame plate.

Further, the upper frame plate is fixed with the control circuit board.

Further, the lower frame plate is fixed with the bottom surface of the shell.

Furthermore, the water-vapor separator is positioned above the heating body in an inclined manner, and a water path between the heating body and the water-vapor separator is inclined into an upward inclined water path.

Furthermore, the joint of the water-vapor separator and the inclined waterway is an inclined plane back to the inclined waterway.

Furthermore, the water-vapor separator is also provided with a steam outlet, and the steam outlet corresponds to the water outlet nozzle.

Furthermore, a waterway one-way valve which enables water to flow from the water pump to the heating body is arranged on a waterway between the water pump and the heating body.

Furthermore, a flowmeter is arranged on the water path and positioned in front of the water pump.

Furthermore, a controlled silicon is arranged in the shell and electrically connected with the control circuit board to control the power of the heating body.

Furthermore, the shell is internally provided with a radiating block, and the controllable silicon is arranged on the radiating block.

Furthermore, the waterway passes through the radiating block.

Further, the water outlet nozzle extends outwards at the upper end of the shell.

Furthermore, a buffer mechanism positioned between the water filling port and the water inlet of the water heating assembly is arranged in the water filling port.

Further, the buffer mechanism is a buffer cap, and a water leakage port is formed in the buffer cap.

The water bottle connector is provided with a connecting cavity, the connecting cavity is provided with a through flow channel, the water bottle connector is connected to the water filling port and then communicated with the water filling port, the inner side wall of the connecting cavity is provided with a threaded connecting part used for being connected with a bottle opening of a water bottle, and a ventilation channel for communicating external air and the water bottle connected to the water bottle connector is arranged in the water bottle connector.

Furthermore, the threaded connection part has two circles, namely an inner circle and an outer circle.

Furthermore, a ventilation one-way valve is arranged in the ventilation channel, and air can only enter the water bottle from the outside through the ventilation one-way valve.

Furthermore, the lower end opening of the air-permeable passage is positioned on the lower end surface of the water bottle joint, and the upper end opening of the air-permeable passage is positioned on the bottom surface of the connecting cavity.

Further, the ventilation channel comprises an upper section and a lower section which are communicated with each other, and the ventilation one-way valve is arranged in the lower section of the ventilation channel.

Furthermore, an outer sleeve is sleeved outside the water bottle joint, the bottom surface of the outer sleeve fixes the air-permeable one-way valve, and an opening corresponding to the air-permeable channel is also formed in the bottom surface of the outer sleeve.

Furthermore, the breathable one-way valve is a duckbill valve.

Furthermore, a convex shoulder is arranged at the tail part of the duckbill valve and is clamped between the bottom surface of the outer sleeve and the bottom surface of the water bottle joint.

Furthermore, the outer sleeve is connected with the water bottle connector in a buckling mode.

Further, the upper section of the ventilation channel is positioned at the inner side of the lower section of the ventilation channel.

Furthermore, the bottom surface of the connecting cavity is provided with a raised sealing ring matched with the inner circle of the bottle mouth of the water bottle, the upper end opening of the air-permeable passage is positioned on the inner side of the sealing ring, and the bottle mouth of the water bottle is connected with the threaded connecting part, then the sealing ring enters the bottle mouth of the water bottle and forms sealing in the inner circle of the bottle mouth of the water bottle.

Further, the upper end of the outer side surface of the sealing ring is provided with a slope inclined outwards from top to bottom.

Further, the lower part of the outer side surface of the sealing ring retracts inwards.

Furthermore, a leakage-proof valve is arranged on the through flow passage.

Furthermore, the leakage-proof valve is a flexible valve plate, and a water passing gap is formed in the flexible valve plate.

Furthermore, the water passing gap is in a cross shape.

And the flexible valve plate is clamped between the valve cover and the through flow channel through the valve cover.

Furthermore, an inward convex bearing shoulder is arranged in the through flow channel, and the flexible valve plate is clamped between the valve cover and the bearing shoulder.

The beneficial effects of the utility model reside in that: the water heating assembly is arranged on a support, an electric element in the water heating assembly is connected with the control circuit board to form a water heating module, and when the water heating assembly is assembled, the water heating module is arranged in the shell, and the upper cover is covered at the upper end of the shell, so that the water heating assembly is very simple and convenient to install.

Drawings

Fig. 1 is a schematic structural view of the utility model with a water bottle joint.

Fig. 2 is a schematic structural view of the present invention at a bottom view.

Fig. 3 is a schematic structural diagram of the present invention when the water bottle joint is not installed.

Fig. 4 is a schematic structural view of the upper cover and the water heating module.

Fig. 5 is a schematic structural view of the housing.

FIG. 6 is a schematic view of the water heating assembly in cooperation with the bracket.

Fig. 7 is a schematic structural view of a water heating assembly.

Fig. 8 is a schematic structural view of the stent.

Fig. 9 is a schematic view of the structure of the water bottle joint.

Fig. 10 is a cross-sectional view of a water bottle sub-connector.

Fig. 11 is a partially enlarged view of a portion a in fig. 10.

Fig. 12 is an exploded view of a water bottle sub-joint.

FIG. 13 is a schematic structural diagram of a flexible valve sheet.

FIG. 14 is a schematic view of the installation of the flexible valve sheet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-14, a portable water dispenser comprises a housing 1 with an opening at the upper end, wherein a water outlet nozzle 2 extending outwards is arranged at the upper part of the housing 1, an upper cover 3 is arranged on the opening at the upper end of the housing 1, a water filling port 4 is arranged on the upper cover 3, and the water filling port 4 is used for adding water into the water dispenser.

The shell 1 in be equipped with water heating assembly 5, control circuit board 6, the water inlet of water heating assembly 5 with filler 4 UNICOM, both cup joint each other in this embodiment. The water outlet end of the water heating assembly 5 is provided with a water outlet 12, which corresponds to the water outlet nozzle 2, so that water is discharged from the water outlet nozzle 2. The water heating assembly 5 is arranged on a support 7, the control circuit board 6 is positioned above the water heating assembly 5, after the electric elements in the water heating assembly 5 are connected with the control circuit board 6, the water heating assembly 5, the support 7 and the control circuit board 6 form a water heating module 8, the upper cover 3 is arranged at the upper end of the shell 1 after the water heating module 8 is arranged in the shell 1, and the connection mode between the upper cover 3 and the shell 1 is preferably a snap connection mode, but other connection modes can also be adopted, such as screw connection, ultrasonic welding, bonding and the like. The water heating assembly 5 is a mature technology in the existing water dispenser, and is not described herein again, and the structure of the water heating assembly in this embodiment will be described in detail below.

In this embodiment, the water filling port 4 is provided with a buffer mechanism located between the water filling port and the water inlet of the water heating assembly, the specific structural form of the buffer mechanism in this embodiment is a buffer cap 26, the buffer cap 26 is provided with a water leaking port 27, and the buffer mechanism can buffer the water flowing out of the water bottle to avoid over-rapid water drainage.

When in use, the utility model has the same use method as the prior portable water dispenser, the water in the bottled water enters the water heating assembly 5 through the water filling port 4, and the water can flow out from the water outlet 12 of the water outlet nozzle 2 after being heated.

In this embodiment, the water heating assembly includes a water path, the water path is sequentially provided with a water pump 9, a heating body 10 and a water-vapor separator 11 in a water flow direction, the water pump 9 and the heating body 10 are both electrically connected to the control circuit board 6, a water outlet 12 is provided on the water-vapor separator 11, and the water-vapor separator 11 is integrally located in the water outlet nozzle 2 in this embodiment. The water vapor separator 11 is also a mature technology in the prior art, and will not be described in detail here, and the specific structure of the water vapor separator in this embodiment will be described in detail below.

The bracket 7 is used for connecting the water heating assembly 5 to the bracket 7, so that the water heating assembly 5 and the bracket 7 form a whole body, and the assembly is convenient, therefore, the bracket 7 can adopt various structural forms as long as the purposes can be achieved. In this embodiment, the support 7 includes an upper frame plate 13 and a lower frame plate 14, a heating body sleeve 15 is disposed between the upper frame plate 13 and the lower frame plate 14, and the heating body 10 is sleeved in the heating body sleeve 15. The lower frame plate 14 is also provided with a water pump sleeve 16, the water pump 9 is sleeved in the water pump sleeve 16, and the water pump 9 is sleeved in the water pump sleeve 16, so that the water heating assembly 5 and the support 7 are further facilitated to form a whole. The water inlet end and the water outlet end of the waterway upwards penetrate through the upper frame plate 13. The upper frame plate 13 is fixed with the control circuit board 6, so that the support 7, the control circuit board 6 and the water heating module 8 formed by the water heating assembly 5 are more stable, the upper frame plate 13 and the control circuit board 6 can be connected through screws, and of course, other modes, such as snap connection and the like, can also be adopted for connection.

In this embodiment, the lower frame plate 14 is fixed to the bottom surface of the housing 1, which is beneficial to further stabilizing the water heating module in the housing, and the lower frame plate 14 and the bottom surface of the housing 1 are preferably fixedly connected by screws, and may be fastened or bonded by other methods.

In this embodiment, the water-vapor separator 11 is located obliquely above the heating body 10, and the water path between the heating body 10 and the water-vapor separator 11 is inclined to be an upward inclined water path 17. In the prior art, the waterway between the heating body and the water-vapor separator is a waterway which is bent at a right angle, the mixture of the heated water and the water vapor is difficult to smoothly enter the water-vapor separator, and after the inclined waterway 17 is arranged, the mixture of the heated water and the water vapor in the heating body enters the water-vapor separator 11 through the inclined waterway 17, and the flow is smoother. In addition, the inclined water path 17 is adopted, so that the mixture of the hot water and the water vapor is sprayed upwards in an inclined mode, and water-vapor separation is facilitated.

In this embodiment, the joint between the water-vapor separator 11 and the inclined waterway 17 is an inclined plane facing away from the inclined waterway 17, which is more beneficial to water-vapor separation.

The water-vapor separator 11 in this embodiment further has a steam outlet 18, and the steam outlet 18 also corresponds to the water outlet nozzle 2, so that steam is discharged from the water outlet nozzle 2. The water-vapor separator 11 comprises a cavity with an inner cavity, a baffle is arranged in the cavity, the jet orifice of the inclined waterway 17 is right opposite to the baffle, a water-vapor mixture is blocked by the baffle so as to realize better water-vapor separation, a steam exhaust pipe is arranged in the cavity, the tail end of the steam exhaust pipe extends out of the cavity downwards so as to form a steam exhaust port 18, and a water outlet 12 of the water-vapor separator is also arranged on the bottom surface of the cavity.

In this embodiment, a waterway one-way valve is disposed on the waterway between the water pump 9 and the heating body 10, so that water can only flow from the water pump 9 to the heating body 10, and the backflow of water is prevented.

In this embodiment, the waterway is further provided with a flow meter, and the flow meter is positioned in front of the water pump and used for metering.

In this embodiment, a thyristor 19 is further disposed in the housing, and the thyristor 19 is electrically connected to the control circuit board 6 to control the power of the heating body 10, so as to better control the water temperature. In this embodiment, a heat dissipation block 20 is further disposed in the housing, and the thyristor 19 is disposed on the heat dissipation block 20. The water path passes through the slug 20 so that the slug 20 is also integrated into the water heating assembly 5.

In this embodiment, the water outlet nozzle 2 extends outwards from the upper end of the housing 1.

In this embodiment, the portable water dispenser further includes a water bottle connector 21 connectable to the filler 4, the water bottle connector 21 has a connection cavity 28, the connection cavity 28 has a through channel 29 that is through from top to bottom, the through channel 29 is communicated with the filler 4 after the water bottle connector 21 is connected to the filler 4, and a threaded connection part for connecting with a bottle mouth of a water bottle is disposed on an inner side wall of the connection cavity 28. The water bottle connector 21 is used for connecting with a water bottle. In this embodiment, the threaded connection portion has two circles, namely an inner circle 22 and an outer circle 23, which correspond to a water bottle with a large bottle opening and a water bottle with a small bottle opening, respectively, and the adaptability is stronger.

The water bottle connector 21 is internally provided with a ventilation channel 24 which is communicated with the outside air and connected with the water bottle on the water bottle connector, so that the air pressure in the water bottle can be kept, the water in the water bottle can smoothly flow out, and the ventilation channel 24 is internally provided with a ventilation one-way valve which ensures that the air can only enter the water bottle from the outside.

In this embodiment, the lower opening of the air-permeable passage 24 is located on the lower end surface of the water bottle joint 21, and the upper opening of the air-permeable passage 24 is located on the bottom surface of the connecting cavity 28. The ventilation channel 24 includes an upper section and a lower section that are communicated with each other, in this embodiment, the upper section of the ventilation channel is located inside the lower section of the ventilation channel, the upper section and the lower section are staggered, the ventilation check valve is disposed in the lower section of the ventilation channel, and in this embodiment, the ventilation check valve is a duckbill valve 30.

In this embodiment, an outer sleeve 31 is further sleeved outside the water bottle joint 21, the duckbill valve 30 is fixed by the bottom surface of the outer sleeve 31, and an opening corresponding to the air-permeable passage is also formed in the bottom surface of the outer sleeve 31. In this embodiment, the outer sleeve 31 fixes the duckbill valve 30 in the following specific manner: the duckbill valve 30 has a shoulder 32 at the end thereof, and the shoulder 32 is clamped between the bottom surface of the outer sleeve 31 and the bottom surface of the water bottle neck 21.

In this embodiment, the outer sleeve 31 and the water bottle joint 21 are connected by snap-fit connection, but may be connected by other methods, such as screw connection, rivet connection, adhesion, ultrasonic welding, etc.

In this embodiment, the bottom surface of the connecting cavity 28 is provided with a raised sealing ring 33 which is matched with the inner circle of the bottle mouth of the water bottle, the upper end opening of the air-permeable passage 24 is located on the inner side of the sealing ring 33, and the bottle mouth of the water bottle is connected to the threaded connection part, then the sealing ring 33 enters the bottle mouth of the water bottle and forms a seal on the inner circle of the bottle mouth of the water bottle. In this embodiment, the upper end of the outer side surface of the sealing ring 33 has a slope 34 inclined from top to bottom, the lower portion of the outer side surface of the sealing ring 33 is retracted, and the slope 34 functions as: in the process of screwing the water bottle, the bottle mouth can be expanded under the action of the inclined surface 34, so that the sealing ring 33 can enter the bottle mouth conveniently and can be in interference fit with the inner circle of the bottle mouth to achieve the sealing effect.

In this embodiment, the through channel 29 is provided with a leakage prevention valve to prevent water leakage during installation of the water bottle. In this embodiment, the leakage prevention valve is a flexible valve plate 35, a water passing gap 36 is formed in the flexible valve plate 35, specifically, the water passing gap 36 is cross-shaped in this embodiment, and under the action of the flexible valve plate 35, water leakage does not occur when a water bottle joint with a water bottle installed is connected to the water filling port 4; when the water pump 9 works, the water passing gap 36 of the flexible valve plate 35 can be opened so as to smoothly feed water.

In this embodiment, the specific fixing manner of the flexible valve sheet 35 is as follows: the flexible valve plate 35 is clamped between the valve cover 37 and the through flow channel 29 through the valve cover 37, and the specific structure mode in the embodiment is as follows: an inward convex bearing shoulder 38 is arranged in the through flow channel, and the flexible valve plate 35 is clamped between the valve cover 37 and the bearing shoulder 38. The valve cover 37 and the through flow passage 29 may be tightly fitted or may be snap-fitted or connected in other manners. In this embodiment, the bonnet 37 has a ring of snap rings, the inner side wall of the through flow channel 29 is provided with a ring of convex rings, when the snap rings on the bonnet 37 cross the convex rings in the through flow channel 29, the snap rings are positioned in the through flow channel, and for the convenience of crossing the convex rings, the lower surfaces of the snap rings are inclined planes which are inclined downward from the inside to the outside.

Claims

1. A portable water dispenser comprises a shell with an opening at the upper end and a display screen, wherein the upper part of the shell is provided with a water outlet nozzle extending outwards, the opening at the upper end of the shell is provided with an upper cover, and the upper cover is provided with a water filling port;

2. The portable water dispenser of claim 1, wherein: the water heating assembly comprises a water path, wherein a water pump, a heating body and a water-vapor separator are sequentially arranged on the water path in the water flow direction, the water pump and the heating body are electrically connected with the control circuit board, and the water outlet is formed in the water-vapor separator.

3. The portable water dispenser of claim 2, wherein: the water-vapor separator is positioned in the water outlet nozzle.

4. The portable water dispenser of claim 2, wherein: the support comprises an upper frame plate and a lower frame plate, a heating body sleeve is arranged between the upper frame plate and the lower frame plate, and the heating body is sleeved in the heating body sleeve.

5. The portable water dispenser of claim 4, wherein: the lower frame plate is also provided with a water pump sleeve, and the water pump is sleeved in the water pump sleeve.

6. The portable water dispenser of claim 4, wherein: the water inlet end and the water outlet end of the waterway upwards penetrate through the upper frame plate.

7. The portable water dispenser of claim 4, wherein: the upper frame plate is fixed with the control circuit board.

8. The portable water dispenser of claim 4, wherein: the lower frame plate is fixed with the bottom surface of the shell.

9. The portable water dispenser of any one of claims 2-8, wherein: the water-vapor separator is positioned above the heating body in an inclined manner, and a water path between the heating body and the water-vapor separator is inclined into an upward inclined water path.

10. The portable water dispenser of claim 9, wherein: the joint of the water-vapor separator and the inclined waterway is an inclined plane back to the inclined waterway.

11. The portable water dispenser of any one of claims 2-8, wherein: the water-vapor separator is also provided with a vapor outlet which corresponds to the water outlet nozzle.

12. The portable water dispenser of any one of claims 2-8, wherein: and a waterway one-way valve which enables water to flow from the water pump to the heating body is arranged on the waterway between the water pump and the heating body.

13. The portable water dispenser of any one of claims 2-8, wherein: the water path is also provided with a flowmeter which is positioned in front of the water pump.

14. The portable water dispenser of any one of claims 2-8, wherein: and a controllable silicon is also arranged in the shell and is electrically connected with the control circuit board to control the power of the heating body.

15. The portable water dispenser of claim 14, wherein: the shell is internally provided with a radiating block, and the controllable silicon is arranged on the radiating block.

16. The portable water dispenser of claim 15, wherein: the waterway passes through the radiating block.

17. The portable water dispenser of any one of claims 1-8, wherein: the water outlet nozzle extends outwards at the upper end of the shell.

18. The portable water dispenser of any one of claims 1-8, wherein: and a buffer mechanism positioned between the water filling port and the water inlet of the water heating assembly is arranged in the water filling port.

19. The portable water dispenser of claim 18, wherein: the buffer mechanism is a buffer cap, and a water leakage port is formed in the buffer cap.

20. The portable water dispenser of any one of claims 1-8, wherein: the water bottle connector is provided with a connecting cavity, the connecting cavity is provided with a through flow channel, the water bottle connector is connected to the water filling port, the through flow channel is communicated with the water filling port, the inner side wall of the connecting cavity is provided with a threaded connecting part used for being connected with a bottle opening of a water bottle, and a ventilation channel for communicating external air and the water bottle connected to the water bottle connector is arranged in the water bottle connector.

21. The portable water dispenser of claim 20, wherein: the threaded connection part is provided with two circles which are an inner circle and an outer circle respectively.

22. The portable water dispenser of claim 20, wherein: the ventilating passage is internally provided with a ventilating one-way valve which ensures that air can only enter the water bottle from the outside.

23. The portable water dispenser of claim 22, wherein: the lower end opening of the air-permeable passage is positioned on the lower end surface of the water bottle joint, and the upper end opening of the air-permeable passage is positioned on the bottom surface of the connecting cavity.

24. The portable water dispenser of claim 23, wherein: the ventilation channel comprises an upper section and a lower section which are communicated with each other, and the ventilation one-way valve is arranged in the lower section of the ventilation channel.

25. The portable water dispenser of claim 24, wherein: the water bottle joint is also sleeved with an outer sleeve, the bottom surface of the outer sleeve fixes the air-permeable one-way valve, and the bottom surface of the outer sleeve is also provided with an opening corresponding to the air-permeable channel.

26. The portable water dispenser of claim 25, wherein: the air-permeable one-way valve is a duckbill valve.

27. The portable water dispenser of claim 26, wherein: the duckbill valve is characterized in that a convex shoulder is arranged at the tail part of the duckbill valve, and the convex shoulder is clamped between the bottom surface of the outer sleeve and the bottom surface of the water bottle joint.

28. The portable water dispenser of claim 25, wherein: the outer sleeve is connected with the water bottle connector in a buckling mode.

29. The portable water dispenser of claim 24, wherein: the upper section of the ventilation channel is positioned at the inner side of the lower section of the ventilation channel.

30. The portable water dispenser of claim 29, wherein: the bottom surface of the connecting cavity is provided with a raised sealing ring matched with the inner circle of the bottle mouth of the water bottle, the upper end opening of the air-permeable passage is positioned on the inner side of the sealing ring, and the bottle mouth of the water bottle is connected with the threaded connecting part, then the sealing ring enters the bottle mouth of the water bottle and forms sealing in the inner circle of the bottle mouth of the water bottle.

31. The portable water dispenser of claim 30, wherein: the upper end of the outer side surface of the sealing ring is provided with an inclined surface which inclines outwards from top to bottom.

32. The portable water dispenser of claim 31, wherein: the lower part of the outer side surface of the sealing ring retracts inwards.

33. The portable water dispenser of claim 20, wherein: and the through flow passage is provided with a leakage-proof valve.

34. The portable water dispenser of claim 33 wherein: the leakage-proof valve is a flexible valve plate, and a water passing gap is formed in the flexible valve plate.

35. The portable water dispenser of claim 34 wherein: the water passing gap is in a cross shape.

36. The portable water dispenser of claim 34 wherein: the flexible valve plate is clamped between the valve cover and the through flow channel through the valve cover.