CN109972699A - A kind of device for storing liquid with heating function - Google Patents
A kind of device for storing liquid with heating function Download PDFInfo
- Publication number
- CN109972699A CN109972699A CN201910344901.5A CN201910344901A CN109972699A CN 109972699 A CN109972699 A CN 109972699A CN 201910344901 A CN201910344901 A CN 201910344901A CN 109972699 A CN109972699 A CN 109972699A
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- CN
- China
- Prior art keywords
- heating
- liquid
- room
- storing liquid
- heating function
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 125
- 239000007788 liquid Substances 0.000 title claims abstract description 111
- 238000003825 pressing Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 21
- 238000003287 bathing Methods 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000006071 cream Substances 0.000 abstract description 10
- 239000002453 shampoo Substances 0.000 abstract description 8
- 238000001125 extrusion Methods 0.000 abstract description 4
- 230000036760 body temperature Effects 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/04—Water-basin installations specially adapted to wash-basins or baths
- E03C1/046—Adding soap, disinfectant, or the like in the supply line or at the water outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Devices For Medical Bathing And Washing (AREA)
Abstract
The invention discloses a kind of device for storing liquid with heating function, including the liquid storage box being located above water pipe and the heating room for being located at liquid storage box bottom end, it heats in the rear metal covering insertion water pipe of room, the outer wall for other metal coverings that heating room is different from rear metal covering is sticked and has heating film, the preceding metal covering of heating room is connected with pressing plate, and the lower metal covering for heating room offers liquid outlet.A kind of device for storing liquid with heating function provided in an embodiment of the present invention, liquid can be heated using two ways, first is that the circulation by bathing hot water carries out physical heating to liquid, second is that being heated by the heating film for heating room to liquid, make it possible to realize the shower cream of extrusion or shampoo is no longer ice-cold, closer to human body temperature, ice-cold feeling is not had when being applied on human body, so that it is more comfortable to have a bath, it reduces because of cold sick possibility, allow businessman can better service consumer, improve the competitiveness of itself.
Description
Technical field
The present embodiments relate to Bath utensil technical field more particularly to a kind of device for storing liquid with heating function.
Background technique
It has a bath in winter, ice-cold is the problem of all existing all the time, and this problem similarly exists at firmly hotel.Through
Investigation discovery, firmly generally only having inside room when hotel just has air-conditioning that can open heating, and shower cream or hair washing in hotel
Dew is typically all to be installed to be hung on a wall with box, even if the appearance of box is ever-changing, but its function also only can be simple
Shower cream or shampoo are extruded, then without other function.There is outfit in any hotel of certain slightly higher grades in bathroom
For super bath to alleviate this problem, but for most of Economical Hotel, the cost for being equipped with super bath is too high, therefore wants in bathing
Wipe shower cream perhaps shampoo when since shampoo or the liquid of shower cream itself be ice-cold, so being applied to
Inevitably passively to receive this cold when with it or on head.Although somebody's habit first shower cream or is washed
It becomes visible and first warms a period of time with hand, but this way can only make the temperature of liquid slightly improve a little, clip body
It can still feel to obtain cold when upper.This ice-cold point of the liquid of shampoo or shower cream may for normal person's constitution
Influenced without what, only move merely it is uncomfortable, but for old man, infant or the slightly worse group of body, but
It is likely to become the important priming factors of sick flu.
Summary of the invention
The present invention provides a kind of device for storing liquid with heating function, so as to solve the deficiencies in the prior art.
To achieve the above object, the present invention provides technical solution below:
A kind of device for storing liquid with heating function, including the liquid storage box for storing liquid, the liquid storage box is located at use
Above the water pipe for providing bathing hot water, the bottom end of the liquid storage box is equipped with for being heated to inflow liquid therein
Room is heated, the heating room is connected to the liquid storage box by sepage mouth；Wherein,
The heating room is made of metal material, and the rear metal covering of the heating room is embedded in the water pipe, described to add
The outer wall that hot cell is different from other metal coverings of the rear metal covering is sticked and has heating film, and the heating film is used for the heating
Indoor liquid is heated, it is described heating room preceding metal covering by a channel to be externally connected with for press so that it is described plus
The pressing plate that the indoor liquid of heat flows outwardly, the pressing plate and be to be equipped with elastomeric element, the elastic portion between heating room
Part can follow the pressing plate fore-aft travel in the channel, and the lower metal covering of the heating room offers liquid outlet, described
Liquid outlet is built-in with check valve.
Further, in the device for storing liquid with heating function, the liquid storage box is made of box body and box cover, described
Box body is flexibly connected with the box cover；
The sepage mouth is provided with the bottom of the box body.
Further, in the device for storing liquid with heating function, air hole is offered in the middle part of the box cover.
Further, the device for storing liquid with heating function further includes the heating for powering to the heating film
Circuit and temperature control circuit for being managed to fluid temperature.
Further, the device for storing liquid with heating function further includes for controlling the heater circuit and temperature control
The switch that circuit opens or closes.
Further, the device for storing liquid with heating function, further includes sheet rubber, and the sheet rubber is located at described add
It in hot cell and is located under the sepage mouth, for closing the sepage mouth during pressing plate pressing.
Further, in the device for storing liquid with heating function, the pressing plate protrudes into the indoor portion of heating
Divide and is connected with a sealing ring.
Further, in the device for storing liquid with heating function, the check valve is spring precompressed check valve, diaphragm
One of formula check valve or plunger type check valve.
Further, in the device for storing liquid with heating function, the spring precompressed check valve includes a guide rod, institute
The upper end for stating guide rod is connected with the sheet rubber that can seal the liquid outlet, and the periphery of the guide rod is equipped with helical spring.
Further, in the device for storing liquid with heating function, the elastomeric element is spring.
A kind of device for storing liquid with heating function provided in an embodiment of the present invention can be added liquid using two ways
Heat, first is that carries out physical heating to liquid by the circulation of bathing hot water, second is that by the heating film that heats room to liquid into
Row heating, make it possible to realize the shower cream of extrusion or shampoo be no longer it is ice-cold, closer to human body temperature, be applied to
Ice-cold feeling is not had when on human body, so that it is more comfortable to have a bath, reduces because of cold sick possibility, makes businessman more preferable
Service consumer, improve the competitiveness of itself.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of the device for storing liquid provided in an embodiment of the present invention with heating function；
Fig. 2 is the structure left view of the device for storing liquid provided in an embodiment of the present invention with heating function；
Fig. 3 is the structure bottom view of the device for storing liquid provided in an embodiment of the present invention with heating function；
Fig. 4 is the structural schematic diagram of the device for storing liquid provided in an embodiment of the present invention with heating function；
Fig. 5 is the structural schematic diagram of temperature control circuit in the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of heater circuit in the embodiment of the present invention.
Appended drawing reference:
Liquid storage box 10 heats room 20, channel 30, pressing plate 40, elastomeric element 50, liquid outlet 60, check valve 70；
Box body 11, box cover 12；
Guide rod 71, sheet rubber 72, helical spring 73.
Specific embodiment
To enable the purpose of the present invention, feature, advantage more obvious and understandable, implement below in conjunction with the present invention
Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that reality disclosed below
Applying example is only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
In the description of the present invention, it is to be understood that, when a component is considered as " connection " another component, it can
To be directly to another component or may be simultaneously present the component being centrally located.When a component is considered as " setting
Set " another component, it, which can be, is set up directly on another component or may be simultaneously present the component being centrally located.
In addition, the indicating positions such as term " length " " short " "inner" "outside" or positional relationship for the orientation that is shown based on attached drawing or
Person's positional relationship is merely for convenience of the description present invention, rather than the device or original part of indication or suggestion meaning must have this
Specific orientation is operated with specific orientation construction, should not be understood as limitation of the invention with this.
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
Embodiment one
Please referring to Fig. 1~4, (in figure by taking two device for storing liquid arranged side by side as an example, one is used to fill shower cream, another is used to
Fill shampoo), the embodiment of the present invention provides a kind of device for storing liquid with heating function, including the liquid storage box for storing liquid
10, the liquid storage box 10 is located above the water pipe for providing bathing hot water, the bottom end of the liquid storage box 10 be equipped with for pair
The heating room 20 that liquid therein is heated is flowed into, heating room 20 is connected to the liquid storage box 10 by sepage mouth；Its
In,
The heating room 20 is made of metal material, enable heat it is faster and better pass to the liquid being heated
Body shortens the heating time to liquid, and the rear metal covering of the heating room 20 is embedded in the water pipe, and the heating room 20 is distinguished
The outer wall of other metal coverings of metal covering, which is sticked, after described heating film, and the heating film is used for in the heating room 20
Liquid is heated, it is described heating room 20 preceding metal covering by a channel 30 to be externally connected with for press so that the heating
The pressing plate 40 that liquid in room 20 flows outwardly, the pressing plate 40 and be heating room 20 between be equipped with elastomeric element 50, institute
Stating elastomeric element 50 can follow 40 fore-aft travel of pressing plate in the channel 30, and the lower metal covering of the heating room 20 is opened
Equipped with liquid outlet 60, the liquid outlet 60 is built-in with check valve 70.
Wherein, the elastomeric element 50 is spring；The liquid storage box 10 is made of box body 11 and box cover 12, the box body 11
It is flexibly connected with the box cover 12；The sepage mouth is provided with the bottom of the box body 11, and the middle part of the box cover 12 offers
Air hole.
It should be noted that the air hole is the entrance for air, allow liquid voluntarily by box body 11
The sepage mouth of bottom flows into the heating room 20, and liquid saves bit by bit waiting in the heating room 20 after flowing into the heating room 20
Heating.
Preferably, described device further includes sheet rubber, and the sheet rubber is located in the heating room 20 and is located at the infiltration
Under liquid mouth, for closing the sepage mouth during pressing plate 40 pressing.
The part that the pressing plate 40 protrudes into the heating room 20 is connected with a sealing ring.
In the present embodiment, the check valve 70 is spring precompressed check valve, diaphragm type one-way valve or plunger type check valve
One of.
Preferably, the spring precompressed check valve is selected to be built in the liquid outlet as the check valve 70 in the present embodiment
In 60.As shown in figure 4, the check valve 70 specifically includes a guide rod 71, the upper end of the guide rod 71, which is connected with, can seal institute
The sheet rubber 72 of liquid outlet 60 is stated, the periphery of the guide rod 71 is equipped with helical spring 73.
It should be noted that having external pressure when pressing plate 40 presses and entering the heating room 20 heated to liquid
Interior, at this moment the sheet rubber closure under sepage mouth, sepage mouth are closed, and the check valve 70 of liquid outlet 60 is because pressure is opened, liquid flow
Out；When pressing plate 40 is unclamped, sepage mouth is opened, and liquid outlet 60 is closed, and liquid flows into heating room through sepage mouth from liquid storage box 10
In 20, the liquid heated in room 20 is supplemented.
The present embodiment can heat the liquid in heating room 20 by two ways, first is that passing through bathing hot water
Circulation physical heating is carried out to liquid, i.e., when flowing through hot water in the water pipe of the hot water equipped with bathing, pass through heating room 20
Heat is supplied to the liquid in heating room 20 by metal covering afterwards；Second is that liquid is heated by the heating film for heating room 20,
Even if there is no hot water in water pipe in this way, directly electricity consumption can also go to heat the liquid in the heating room 20.
Preferably, described device further include for the heating film power heater circuit, for fluid temperature into
The temperature control circuit of row control, and the switch opened or closed for controlling the heater circuit and temperature control circuit.
It should be noted that the temperature control circuit are as follows: add an adjustable resistance to make in the non-inverting input terminal of comparator chip
For reference voltage.The voltage of reverse side is equal to the voltage drop of temperature-sensitive element R4.The height of the resistance value of thermistor and temperature at
Direct ratio.When fluid temperature is setting value or less, in-phase end voltage is greater than reverse side voltage, and at this moment comparator output result is height
Level.Triode ON work.When temperature rises to setting value or more, reverse side voltage is greater than in-phase end, comparator output
For low level, triode is in off state.The value for adjusting adjustable resistance can change threshold voltage, and both set temperature value was big
It is small.
The heater circuit are as follows: when the switch for pressing heating, comparator obtains signal and starts to compare, and the liquid being heated is low
When preset temperature, at this time battery or external power supply start to power to heating film.Heating film fever, heat are passed by metallic walls
The liquid being heated is passed, when the liquid being heated is greater than preset temperature, stopping power supply, heating film stops heating.
Specifically, the signal processing of temperature control circuit and heater circuit is as follows, circuit structure can refer to Fig. 5 and Fig. 6:
(1) when S1 switch press when, LM393 chip is powered, the non-inverting input terminal of LM339 add one it is adjustable
Resistance, as the reference voltage, the voltage of reverse side is equal to the voltage drop of temperature-sensitive element R4 to the voltage on adjustable resistance；
(2) resistance value of thermistor and the height of temperature are directly proportional, and when temperature is higher, the resistance value of thermistor is bigger；When
Fluid temperature be setting value below when, in-phase end voltage be greater than reverse side voltage, at this moment comparator output result be high level, three
Pole pipe conducting；When temperature rises to setting value or more, reverse side voltage is greater than in-phase end, and it is low electricity that comparator, which exports result,
Flat, triode is in off state；
(3) output of comparator is connected in the base stage of triode, when the base stage of triode is in high level, three poles
Manage in the conductive state, at this moment heating film, which powers on, begins to warm up；When the base stage of triode is in low level, triode is cut
Only, battery stops powering to heating film, and heating film stops fever.
(4) value for adjusting adjustable resistance can change threshold voltage, the i.e. size of set temperature value, be heated to change
The maximum temperature of liquid.
Specific process for using difference is as follows, when physical heating:
(1) temperature of water for bathing is mixed up；
(2) normal bathing process, the liquid heating in the out-of-date room 20 to heating of hot water stream are carried out；
(3) lower extrusion plate is pressed, the liquid for heating completion is extruded；
(4) it has a bath and completes, heating terminates.
When electric heating:
(1) switch of heating is pressed.
(2) heating film powers on, and heating film starts to the liquid heating of 20 the inside of heating room.
(3) reach preset temperature, heating is completed, and stops powering to heating film.
(4) it turns off the switch.
A kind of device for storing liquid with heating function provided in an embodiment of the present invention can be added liquid using two ways
Heat, first is that carries out physical heating to liquid by the circulation of bathing hot water, second is that by the heating film that heats room to liquid into
Row heating, make it possible to realize the shower cream of extrusion or shampoo be no longer it is ice-cold, closer to human body temperature, be applied to
Ice-cold feeling is not had when on human body, so that it is more comfortable to have a bath, reduces because of cold sick possibility, makes businessman more preferable
Service consumer, improve the competitiveness of itself.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of device for storing liquid with heating function, which is characterized in that including the liquid storage box for storing liquid, the liquid storage
Box is located above the water pipe for providing bathing hot water, the bottom end of the liquid storage box be equipped with for flow into liquid therein into
The heating room of row heating, the heating room is connected to the liquid storage box by sepage mouth；Wherein,
The heating room is made of metal material, and the rear metal covering of the heating room is embedded in the water pipe, the heating room
The outer wall for being different from other metal coverings of the rear metal covering is sticked and has heating film, and the heating film is used for indoor to the heating
Liquid heated, it is described heating room preceding metal covering by a channel to be externally connected with for press so that the heating room
The pressing plate that interior liquid flows outwardly, the pressing plate and be heating room between be equipped with elastomeric element, the elastomeric element can
Follow the pressing plate fore-aft travel in the channel, the lower metal covering of the heating room offers liquid outlet, the liquid out
Mouth is built-in with check valve.
2. a kind of device for storing liquid with heating function according to claim 1, which is characterized in that the liquid storage box is by box
Body and box cover composition, the box body are flexibly connected with the box cover；
The sepage mouth is provided with the bottom of the box body.
3. a kind of device for storing liquid with heating function according to claim 2, which is characterized in that the middle part of the box cover
Offer air hole.
4. a kind of device for storing liquid with heating function according to claim 1, which is characterized in that further include for institute
State the heater circuit of heating film power supply and the temperature control circuit for being managed to fluid temperature.
5. a kind of pressing pump head with heating function according to claim 4, which is characterized in that further include for controlling
The switch that the heater circuit and temperature control circuit open or close.
6. a kind of device for storing liquid with heating function according to claim 1, which is characterized in that it further include sheet rubber,
The sheet rubber is located at the heating interior and is located under the sepage mouth, for closing during pressing plate pressing
The sepage mouth.
7. a kind of device for storing liquid with heating function according to claim 1, which is characterized in that the pressing plate protrudes into
The indoor part of heating is connected with a sealing ring.
8. a kind of device for storing liquid with heating function according to claim 1, which is characterized in that the check valve is bullet
One of spring precompressed check valve, diaphragm type one-way valve or plunger type check valve.
9. a kind of device for storing liquid with heating function according to claim 1, which is characterized in that the spring precompressed list
It include a guide rod to valve, the upper end of the guide rod is connected with the sheet rubber that can seal the liquid outlet, the periphery of the guide rod
Equipped with helical spring.
10. a kind of device for storing liquid with heating function according to claim 1, which is characterized in that the elastomeric element
For spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344901.5A CN109972699A (en) | 2019-04-26 | 2019-04-26 | A kind of device for storing liquid with heating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344901.5A CN109972699A (en) | 2019-04-26 | 2019-04-26 | A kind of device for storing liquid with heating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109972699A true CN109972699A (en) | 2019-07-05 |
Family
ID=67086560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910344901.5A Pending CN109972699A (en) | 2019-04-26 | 2019-04-26 | A kind of device for storing liquid with heating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109972699A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2299199A2 (en) * | 2009-09-04 | 2011-03-23 | BSH Bosch und Siemens Hausgeräte GmbH | Water heater, in particular hot water tank |
| CN204001079U (en) * | 2014-01-22 | 2014-12-10 | 温州市海瑞洁具有限公司 | With the bath water tap of bath foam preheat function |
| CN204115525U (en) * | 2014-05-09 | 2015-01-21 | 周勇 | A kind of bathing liquid heating |
| CN204879030U (en) * | 2015-08-13 | 2015-12-16 | 浙江摩玛利洁具有限公司 | Can heat tap of shower bath |
| CN207109369U (en) * | 2017-05-27 | 2018-03-16 | 无锡小天鹅股份有限公司 | Liquid storage box, liquid delivery device and washing machine |
-
2019
- 2019-04-26 CN CN201910344901.5A patent/CN109972699A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2299199A2 (en) * | 2009-09-04 | 2011-03-23 | BSH Bosch und Siemens Hausgeräte GmbH | Water heater, in particular hot water tank |
| CN204001079U (en) * | 2014-01-22 | 2014-12-10 | 温州市海瑞洁具有限公司 | With the bath water tap of bath foam preheat function |
| CN204115525U (en) * | 2014-05-09 | 2015-01-21 | 周勇 | A kind of bathing liquid heating |
| CN204879030U (en) * | 2015-08-13 | 2015-12-16 | 浙江摩玛利洁具有限公司 | Can heat tap of shower bath |
| CN207109369U (en) * | 2017-05-27 | 2018-03-16 | 无锡小天鹅股份有限公司 | Liquid storage box, liquid delivery device and washing machine |
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