Ventilation structure and water storage device and water purifier comprising same

Abstract

The utility model provides a ventilation structure and a water storage device and a water purifier comprising the same, the ventilation structure comprises a valve body, a ventilation cavity, an air inlet channel and an air outlet channel are arranged in the valve body, the air inlet channel and the air outlet channel are independently arranged, a valve core is arranged in the ventilation cavity, the valve core is movably connected in the ventilation cavity, the valve core divides the ventilation cavity and forms an air inlet chamber and an air outlet chamber, and the air inlet chamber is communicated with the air outlet chamber. The air inlet channel is communicated with the air inlet chamber, the air outlet channel is communicated with the air outlet chamber, and the air inlet channel and the air outlet channel share the same ventilation cavity; the driving part is arranged in the ventilation cavity, one end of the driving part is connected with the end of the valve element, and when the air pressure of the air outlet chamber is larger than the force acting on the valve element by the driving part, the valve element moves and communicates with the air outlet channel and closes the air inlet channel; and when the air pressure of the air outlet chamber is smaller than the force applied to the valve element by the driving part, the valve element moves and is communicated with the air inlet channel and closes the air outlet channel.

Description

TECHNICAL FIELD

[0001] The utility model relates to, especially a kind of ventilation structure and containing its water storage device, water purifier. BACKGROUND

[0002] Traditional water storage device needs air inlet and outlet device inside due to water storage and water outlet, the ventilation opening of traditional water outlet device is directly exposed or selects bacteriostatic material to filter air, but due to the flow of air inlet and outlet through the same hole, the humid air with water vapor in water storage device contacts bacteriostatic material when water storage device is filled with water, and bacteriostatic material is often in humid state and is prone to mildew, thereby losing the original air filtering effect, and when water is discharged from water storage device and external air is introduced, air passing through mildew bacteriostatic material may cause bacteria to be introduced into water storage device. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the defects that ventilation opening is easy to breed bacteria and pollute water storage device in the prior art, and provide a ventilation structure, a water storage device and a water purifier comprising the same.

[0004] The utility model solves the above technical problem by the following technical scheme:

[0005] A ventilation structure, the ventilation structure includes:

[0006] Valve body, the valve body is provided with ventilation cavity and independently arranged air inlet channel and air outlet channel, the valve body has valve core in the ventilation cavity, the valve core is movably connected in the ventilation cavity, the valve core separates the ventilation cavity and forms air inlet chamber and air outlet chamber, the air inlet channel is communicated with the air inlet chamber, the air outlet channel is communicated with the air outlet chamber, the air inlet channel and the air outlet channel share the same ventilation cavity;

[0007] Drive part, the drive part is arranged in the ventilation cavity, and one end of the drive part is connected with the end of the valve core, when the air pressure of the air outlet chamber is greater than the force of the drive part acting on the valve core, the valve core moves and connects the air outlet channel and closes the air inlet channel, when the air pressure of the air outlet chamber is less than the force of the drive part acting on the valve core, the valve core moves and connects the air inlet channel and closes the air outlet channel.

[0008] In the scheme, by setting separate air inlet channel and air outlet channel, compared with sharing the same channel for air inlet and outlet, the gas flow is unidirectional, avoiding the situation that the humid air stays in the channel when air outlet, and the bacteria grow in the humid bacteriostatic structure, and then the bacteria are brought in when air inlet. In addition, the air inlet channel and the air outlet channel share the same air exchange cavity, compared with setting two air exchange cavities separately, the valve body structure can be further reduced, the space utilization is improved, and the miniaturization design concept is met. The driving part can drive the valve core to move according to the air pressure change of the air outlet chamber, without the need to additionally set a motor and other active driving structure, reducing the manufacturing cost of the air exchange structure and realizing automatic air inlet and outlet.

[0009] Preferably, the air exchange structure further comprises a filter part, which is arranged in the air inlet channel and located at the end of the air inlet channel communicating with the outside.

[0010] In the scheme, by setting the filter part, the impurities of the outside air are filtered when the air inlet is unidirectional, and the filter part is arranged close to the outside to avoid being damp.

[0011] Preferably, the air inlet channel comprises a first air inlet section and a second air inlet section, both of which communicate with the air inlet chamber, the cross section of the air inlet chamber is trapezoidal structure, the cross section of the valve core is trapezoidal structure and the small size end of the valve core faces the small size end of the air inlet chamber, and the driving part is arranged at the small size end of the air inlet chamber.

[0012] In the scheme, by setting the cross section of the air inlet chamber as trapezoidal structure, the small size end of the trapezoidal structure is used to accommodate and guide the small size end of the valve core which is also trapezoidal structure. In addition, the driving part is arranged at the small size end of the air inlet chamber, compared with arranging the driving part at the large size end of the air inlet chamber, the size of the driving part itself can be smaller, saving cost.

[0013] Preferably, the first air inlet section communicates with the large size end of the air inlet chamber, and the second air inlet section communicates with the small size end of the air inlet chamber.

[0014] In the scheme, the driving part is arranged at the small size end of the air inlet chamber, so that the valve core does not close the small size end of the air inlet chamber during movement. On this basis, the second air inlet section communicates to the small size end of the air inlet chamber, the first air inlet section communicates to the small size end of the air inlet chamber, the first air inlet section can be closed by the valve core, and the second air inlet section remains unobstructed, so as to avoid the situation that the air inlet chamber is closed by the valve core and cannot be air inlet.

[0015] Preferably, the end of the air outlet chamber away from the air inlet chamber is provided with an opening, and the valve body further comprises an end cover embedded in the opening to close the air exchange cavity.

[0016] In the present scheme, the opening is provided for mounting or dismounting the valve core, and the end cover is used to seal the opening to ensure the sealing of the air exchange cavity.

[0017] Preferably, the end cover is provided with a protrusion in the radial direction of the opening, and the size of the protrusion is greater than the size of the opening.

[0018] In the present scheme, the protrusion is provided to be clamped with the opening, and when the valve core is maintained, the end cover can be separated from the opening through the protrusion, avoiding the case that the end cover is completely embedded in the opening.

[0019] Preferably, the air outlet channel includes a first air outlet section and a second air outlet section, both of which are in communication with the air outlet chamber, and the air exchange structure further includes an interface provided on the valve body, the second air inlet section and the second air outlet section are inclinedly arranged and have a V-shaped structure, and the end portions of the second air inlet section and the second air outlet section close to each other are both in communication with the interface.

[0020] In the present scheme, by incliningly arranging the second air inlet section and the second air outlet section and integrating them in the interface, compared with the separated arrangement, the internal space of the valve body is smaller, so that the structure size of the valve body can be correspondingly reduced, the space is reasonably utilized, and the miniaturization design concept is met.

[0021] Preferably, the air exchange structure further includes a sealing portion, which is sleeved on the valve core and located between the edges of the valve core corresponding to the air inlet chamber, the air outlet chamber, and the air inlet channel and the air outlet channel.

[0022] In the present scheme, the above arrangement is used to improve the sealing of the valve core and ensure that the change of the air pressure in the air outlet chamber can effectively cause the driving portion to drive the valve core to move.

[0023] A water storage device includes the air exchange structure as described above.

[0024] In the present scheme, the water storage device includes the air exchange structure, the separate air inlet channel and air outlet channel are provided to make the gas flow in one direction, inhibit the breeding of bacteria in the water storage device, and the air exchange process is automated, without the need to set up a motor drive, and the cost is low.

[0025] A water purifier includes the water storage device as described above.

[0026] In the present scheme, the water purifier includes the water storage device, which can ensure that the total number of bacterial colonies in the water storage device meets the standard.

[0027] The utility model discloses a positive progress effect lies in: the utility model discloses through setting up separate air inlet channel and air outlet channel, compared with the air of sharing the same channel, the gas flow is unidirectional, avoids the humid air stagnation in the channel and makes the bacteriostatic structure damp and breeds bacteria when the air goes out, and then the bacteria is brought into the situation when the air goes in. In addition, the air inlet channel and the air outlet channel share the same air exchange cavity, compared with setting up two air exchange cavities separately, the valve body structure can be further reduced, and the space utilization is improved, and the miniaturization design concept is met. The driving part can drive the valve core movement according to the air pressure change of the air outlet chamber, need not to set up motor and other active drive structure additionally, reduces the air exchange structure manufacturing cost and realizes automatic air intake and exhaust. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the perspective view of the air exchange structure of a preferable embodiment of the utility model.

[0029] Figure 2 It is the front view of the air exchange structure of a preferable embodiment of the utility model.

[0030] Figure 3 It is Figure 2 A-A section view.

[0031] BRIEF DESCRIPTION OF DRAWINGS

[0032] Valve body 1

[0033] Air exchange cavity 11

[0034] Air inlet chamber 111

[0035] Air outlet chamber 112

[0036] Air inlet channel 2

[0037] First air inlet section 21

[0038] Second air inlet section 22

[0039] Air outlet channel 3

[0040] First air outlet section 31

[0041] Second air outlet section 32

[0042] Valve core 4

[0043] Driving part 5

[0044] Opening 6

[0045] End cover 7

[0046] Projection 71

[0047] Interface 8

[0048] Sealing portion 9 DETAILED DESCRIPTION

[0049] The utility model is more clearly and completely illustrated below with a preferred embodiment and in connection with the drawings.

[0050] The embodiment provides a ventilation structure, and the specific structure is shown in Figure 1 、 Figure 2 and Figure 3 , and the ventilation structure comprises:

[0051] a valve body 1, the valve body 1 is provided with a ventilation cavity 11 and independently arranged air inlet channel 2 and air outlet channel 3, the ventilation cavity 11 has a valve core 4, the valve core 4 is movably connected in the ventilation cavity 11, the valve core 4 divides the ventilation cavity 11 and forms air inlet chamber 111 and air outlet chamber 112, the air inlet channel 2 is communicated with the air inlet chamber 111, the air outlet channel 3 is communicated with the air outlet chamber 112, and the air inlet channel 2 and the air outlet channel 3 share the same ventilation cavity 11;

[0052] a driving part 5, the driving part 5 is arranged in the ventilation cavity 11, one end of the driving part 5 is connected with the end of the valve core 4, when the air pressure of the air outlet chamber 112 is greater than the force of the driving part 5 acting on the valve core 4, the valve core 4 moves and connects the air outlet channel 3 and closes the air inlet channel 2, when the air pressure of the air outlet chamber 112 is less than the force of the driving part 5 acting on the valve core 4, the valve core 4 moves and connects the air inlet channel 2 and closes the air outlet channel 3.

[0053] Specifically, the valve body 1 is used for being communicated with a water storage device and being used for ventilation when water is in and out of the water storage device, so that water in and out is smoothly carried out, which is prior art and will not be described in detail here. The valve body 1 is a cylindrical structure, the valve body 1 is internally provided with a ventilation cavity 11, the ventilation cavity 11 is used for containing gas, specifically, the gas in and out of the ventilation structure, the ventilation cavity 11 has a slidable valve core 4, and the valve core 4 itself divides the ventilation cavity 11 to form an air inlet chamber 111 and an air outlet chamber 112, when the valve core 4 moves in the ventilation cavity 11, the air inlet chamber 111 or the air outlet chamber 112 is compressed, and then the air inlet channel 2 or the air outlet channel 3 can be connected correspondingly, in addition, by arranging the air inlet channel 2 and the air outlet channel 3 independently, compared with sharing the same channel for air inlet and outlet, the gas flow is unidirectional, avoiding that the humid air is retained in the channel when air outlet and making the bacteria breeding of the antibacterial structure damp, and then the bacteria is brought into the water storage device communicated with the ventilation structure when air inlet.

[0054] In addition, the air inlet channel 2 and the air outlet channel 3 share the same ventilation cavity 11, compared with independently arranging two ventilation cavities 11, the valve body 1 structure can be further reduced, the space utilization is improved, and the miniaturization design concept is met.

[0055] The driving part 5 is a spring in the prior art, which applies a force to the valve core 4, and the force can keep the inlet passage 2 and the outlet passage 3 closed when the air exchange structure does not carry out air intake or air exhaust. At this time, the air inlet chamber 111 and the air outlet chamber 112 form respective independent and non-communicating cavities. When the water storage device connected with the air outlet chamber 112 carries out water intake or water exhaust, the internal air pressure changes, and the air pressure in the air outlet chamber 112 connected therewith changes. Specifically, when water is taken in, the gas in the water storage device enters the air outlet chamber 112, the air pressure in the air outlet chamber 112 is greater than the force applied by the driving part 5 to the valve core 4, the valve core 4 moves, and the valve core 4 connects the outlet passage 3 and closes the inlet passage 2, and the driving part 5 is compressed to reduce the air pressure in the water storage device, thereby realizing water intake of the water storage device. Similarly, when water is taken out, the air pressure in the water storage device decreases, the air pressure in the air outlet chamber 112 is less than the force applied by the driving part 5 to the valve core 4, the driving part 5 pushes the valve core 4 to move and closes the outlet passage 3 and connects the inlet passage 2, and the gas is supplemented into the water storage device, thereby realizing smooth water exhaust of the water storage device. The driving part 5 can drive the valve core 4 to move according to the change of the air pressure in the air outlet chamber 112, without the need to additionally set a motor or other active driving structure, thereby reducing the manufacturing cost of the air exchange structure and realizing automatic air intake and exhaust.

[0056] Further, in the embodiment, the air exchange structure further comprises a filter part (not shown in the figure), which is arranged in the inlet passage 2 and at the end of the inlet passage 2 connected with the outside.

[0057] Specifically, the filter part is bacteriostatic cotton in the prior art, and of course, in other embodiments, it can also be a filter screen. The bacteriostatic cotton is filled into the end of the inlet passage 2 connected with the outside, i.e., away from the water storage device, and the inlet passage 2 is only used for air intake into the water storage device, so as to filter the impurities of the outside air by the filter part when the air is taken in in one direction. The filter part is arranged away from the water storage device, so as to avoid that the water vapor in the water storage device stays on the filter part, thereby avoiding that the filter part is damp and bacteria breed and the bacteria are taken into the water storage device when the air is taken in, thereby reducing the number of bacteria in the water in the water storage device.

[0058] In the embodiment, the inlet passage 2 comprises a first air intake section 21 and a second air intake section 22, both of which are connected with the air inlet chamber 111. The cross section of the air inlet chamber 111 is in a trapezoidal structure, the cross section of the valve core 4 is also in a trapezoidal structure, and the small-size end of the valve core 4 faces the small-size end of the air inlet chamber 111. The driving part 5 is arranged at the small-size end of the air inlet chamber 111.

[0059] Specifically, the cross section of the air inlet chamber 111 is in a trapezoidal structure, wherein the small end of the air inlet chamber 111 is arranged away from the air outlet chamber 112, and the large end of the air inlet chamber 111 is communicated with the air outlet chamber 112, the cross section of the valve core 4 is in a trapezoidal structure, and the small end of the valve core 4 extends into the small end of the air inlet chamber 111, thereby using the small end of the air inlet chamber 111 to accommodate and guide the small end of the valve core 4 which is also in a trapezoidal structure, so as to avoid the deviation of the valve core 4 during movement.

[0060] The first air inlet section 21 is located at the top of the valve body 1, the second air inlet section 22 is located at the bottom of the valve body 1, and the air inlet chamber 111 is located in the middle region of the valve body 1. In addition, the driving part 5 is arranged at the small end of the air inlet chamber 111. Compared with the case that the driving part 5 is arranged at the large end of the air inlet chamber 111, the size of the driving part 5 itself can be smaller, thereby saving costs.

[0061] In this embodiment, the first air inlet section 21 is communicated with the large end of the air inlet chamber 111, and the second air inlet section 22 is communicated with the small end of the air inlet chamber 111.

[0062] Specifically, the spring, i.e. the driving part 5, is arranged at the small end of the air inlet chamber 111, the first air inlet section 21 is communicated with the large end of the air inlet chamber 111, and the second air inlet section 22 is communicated with the small end of the air inlet chamber 111. The driving part 5 is arranged at the small end of the air inlet chamber 111. Since the driving part 5 has a certain elastic force, the valve core 4 will not close the small end of the air inlet chamber 111 during movement. On this basis, the large end of the valve core 4 can close the communication with the large end of the air inlet chamber 111, i.e. the valve core 4 can close the first air inlet section 21, while the second air inlet section 22 always remains unblocked, thereby enabling the valve core 4 to move to open or close the first air inlet section 21 to correspondingly open or close the air inlet passage 2 when the air pressure of the air outlet chamber 112 changes. Compared with the case that the first air inlet section 21 and the second air inlet section 22 are both closed by the valve core 4, the second air inlet section 22 is kept unblocked to avoid the case that the second air inlet section 22 is still closed and cannot intake air when the valve core 4 moves and opens the first air inlet section 21.

[0063] In this embodiment, the end of the air outlet chamber 112 away from the air inlet chamber 111 is provided with an opening 6, and the valve body 1 further comprises an end cover 7 embedded in the opening 6 to close the air exchange cavity 11.

[0064] Specifically, the opening 6 is a circular hole, and the valve body 1 further comprises an end cover 7 for closing the opening 6. The opening 6 is arranged to facilitate the installation or removal of the valve core 4, and the end cover 7 is used to close the opening 6 to ensure the sealing of the air exchange cavity 11.

[0065] Further, the end cover 7 is provided with a protrusion 71 in the radial direction of the opening 6, and the protrusion 71 is larger in size than the opening 6.

[0066] Specifically, the opening 6 has a stepped groove, and the end cover 7 is provided with a corresponding step to match the stepped groove, and the end cover 7 is further provided with an additional protrusion 71 in the radial direction, which is larger in size than the opening 6. When the end cover 7 is inserted into the opening 6, the protrusion 71 is located outside the valve body 1. When the valve core 4 is maintained, the end cover 7 can be separated from the opening 6 through the protrusion 71, avoiding the situation that the end cover 7 is completely embedded in the opening 6.

[0067] In the embodiment, the air outlet channel 3 includes a first air outlet section 31 and a second air outlet section 32, both of which are in communication with the air outlet chamber 112. The air exchange structure further includes an interface 8 provided on the valve body 1. The second air inlet section 22 and the second air outlet section 32 are inclined and have a V-shaped structure. The end portions of the second air inlet section 22 and the second air outlet section 32 close to each other are both in communication with the interface 8.

[0068] Specifically, the first air outlet section 31 is located at the top of the valve body 1 and is arranged side by side with the first air inlet section 21. The first air outlet section 31 is located at the bottom of the valve body 1, and the air outlet chamber 112 is located in the middle region of the valve body 1. The interface 8 is a circular ring structure protruding from the bottom of the valve body 1. The interface 8 is used to communicate with the water storage device. The second air inlet section 22 and the second air outlet section 32 are both in communication with the interface 8. From the cross-sectional view, the second air inlet section 22 and the second air outlet section 32 have a V-shaped structure. Specifically, the second air inlet section 22 is inclined from the smaller end of the air inlet chamber 111 towards the interface 8, and the second air outlet section 32 is inclined from the air outlet chamber 112 towards the interface 8. Compared with the way that the second air inlet section 22 and the second air outlet section 32 are separately arranged and each communicates with the water storage device, the integration in the interface 8 occupies less internal space of the valve body 1, so that the structure size of the valve body 1 can be correspondingly reduced, and the space is reasonably utilized, which conforms to the miniaturization design concept.

[0069] In the embodiment, the air exchange structure further includes a sealing portion 9, which is sleeved on the valve core 4 and located between the edges of the valve core 4 corresponding to the air inlet chamber 111 and the air outlet chamber 112, and the air inlet channel 2 and the air outlet channel 3.

[0070] Specifically, the larger end of the valve core 4 is located in the larger end of the air inlet chamber 111 and the air outlet chamber 112, and the first air inlet section 21 and the first air outlet section 31 arranged side by side are also located in this region. The larger end of the valve core 4 is sleeved with a sealing part 9, which is a sealing ring in the prior art and is made of rubber, and will not be described in detail here. The sealing part 9 is provided with three, one of which is located at the edge of the valve core 4 facing the air inlet chamber 111 to seal the first air inlet section 21. Similarly, another sealing part 9 is located at the edge of the valve core 4 facing the air outlet chamber 112 to seal the first air outlet section 31. Since the first air inlet section 21 and the first air outlet section 31 are arranged side by side, a sealing part 9 is further arranged in the middle region of the valve core 4 corresponding to the first air inlet section 21 and the first air outlet section 31 to ensure that the air inlet chamber 111 and the air outlet chamber 112 are not connected to each other. In this way, the sealing performance of the valve core 4 is improved, and the change in air pressure of the air outlet chamber 112 can effectively cause the driving part 5 to move the valve core 4.

[0071] The embodiment also provides a water storage device, which comprises the air exchange structure. The single air inlet channel 2 and the air outlet channel 3 are arranged to enable one-way flow of air, inhibit the breeding of bacteria in the water storage device, and automate the air exchange process without the need for motor driving, thereby reducing the cost.

[0072] The embodiment also provides a water purifier, which comprises the water storage device and can ensure that the total number of bacterial colonies in the water storage device meets the standard.

[0073] Although the specific embodiments of the utility model are described above, those skilled in the art should understand that this is only an example, the protection scope of the utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the utility model, and these changes and modifications all fall within the protection scope of the utility model.

Claims

1. A ventilation structure, characterized by, The air exchange structure comprises: a valve body, an air exchange cavity, an air inlet channel and an air outlet channel are arranged in the valve body, a valve core is arranged in the air exchange cavity, the valve core is movably connected to the air exchange cavity, the valve core divides the air exchange cavity into an air inlet chamber and an air outlet chamber, the air inlet channel is communicated with the air inlet chamber, the air outlet channel is communicated with the air outlet chamber, the air inlet channel and the air outlet channel share the same air exchange cavity; a driving part is arranged in the air exchange cavity, one end of the driving part is connected to an end of the valve core, when the air pressure of the air outlet chamber is greater than the force of the driving part acting on the valve core, the valve core moves to connect the air outlet channel and close the air inlet channel, when the air pressure of the air outlet chamber is less than the force of the driving part acting on the valve core, the valve core moves to connect the air inlet channel and close the air outlet channel.

2. The ventilation structure of claim 1, wherein The air exchange structure further comprises a filter part, the filter part is arranged in the air inlet channel and located at an end of the air inlet channel communicated with the outside.

3. The ventilation structure of claim 1, wherein The air inlet channel comprises a first air inlet section and a second air inlet section, the first air inlet section and the second air inlet section are both communicated with the air inlet chamber, the cross section of the air inlet chamber is in a trapezoidal structure, the cross section of the valve core is in a trapezoidal structure and the small end of the valve core is towards the small end of the air inlet chamber, the driving part is arranged at the small end of the air inlet chamber.

4. The ventilation structure of claim 3, wherein The first air inlet section is communicated with the large end of the air inlet chamber, the second air inlet section is communicated with the small end of the air inlet chamber.

5. The ventilation structure of claim 4, wherein, An opening is arranged at an end of the air outlet chamber away from the air inlet chamber, the valve body further comprises an end cover, the end cover is embedded in the opening to close the air exchange cavity.

6. The ventilation structure of claim 5, wherein The end cover is provided with a protrusion in the radial direction of the opening, and the size of the protrusion is greater than the size of the opening.

7. The ventilation structure of claim 3, wherein The air outlet channel comprises a first air outlet section and a second air outlet section, the first air outlet section and the second air outlet section are both communicated with the air outlet chamber, the air exchange structure further comprises a connector, the connector is arranged on the valve body, the second air inlet section and the second air outlet section are arranged in a V-shaped structure, and the end of the second air inlet section and the end of the second air outlet section, which are close to each other, are both communicated with the connector.

8. The ventilation structure of claim 1, wherein, The air exchange structure further comprises a sealing part, the sealing part is sleeved on the valve core and located between the edges of the valve core corresponding to the air inlet chamber, the air outlet chamber, the air inlet channel and the air outlet channel.

9. A water storage device characterized by, The water storage device comprises the air exchange structure according to any one of claims 1-8.

10. A water purifier characterized by comprising: The water purifier comprises the water storage device according to claim 9.

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