CN105795913B - A kind of temperature adjustable drinking device - Google Patents

A kind of temperature adjustable drinking device Download PDF

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Publication number
CN105795913B
CN105795913B CN201610357608.9A CN201610357608A CN105795913B CN 105795913 B CN105795913 B CN 105795913B CN 201610357608 A CN201610357608 A CN 201610357608A CN 105795913 B CN105795913 B CN 105795913B
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CN
China
Prior art keywords
water
tank
temperature
warm water
warm
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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.)
Expired - Fee Related
Application number
CN201610357608.9A
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Chinese (zh)
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CN105795913A (en
Inventor
王跃飞
钟家勤
覃建波
张圆圆
夏义江
谢积锦
何维
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Qinzhou University
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Qinzhou University
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Priority to CN201610357608.9A priority Critical patent/CN105795913B/en
Publication of CN105795913A publication Critical patent/CN105795913A/en
Application granted granted Critical
Publication of CN105795913B publication Critical patent/CN105795913B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00Apparatus for making beverages
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00Apparatus for making beverages
    • A47J31/44Parts or details or accessories of beverage-making apparatus
    • A47J31/4403Constructional details
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00Apparatus for making beverages
    • A47J31/44Parts or details or accessories of beverage-making apparatus
    • A47J31/46Dispensing spouts, pumps, drain valves or like liquid transporting devices
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00Apparatus for making beverages
    • A47J31/44Parts or details or accessories of beverage-making apparatus
    • A47J31/54Water boiling vessels in beverage making machines
    • A47J31/56Water boiling vessels in beverage making machines having water-level controls; having temperature controls

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The present invention provides a kind of temperature adjustable drinking device, including heating system, the heating system includes heating tank, the heating tank is equipped with warm water outlet pipe, the warm water goes out pipe end on warm water heat insulated tank, on in the warm water heat insulated tank, lower float switch, the warm water heat insulated tank is equipped with warm water water receiving pipe, and one side is connected with lower water temperature tank, high-temperature conduit is equipped between the lower water temperature tank and heating tank, it is equipped in the lower water temperature tank upper, lower float switch, it is additionally provided with the first thermoswitch on the lower water temperature tank, second thermoswitch, third thermoswitch, it is additionally provided with automatic water receiving pipe on the lower water temperature tank.The present invention had both avoided the waste of drinking water, can also provide the drinking water of three kinds of normal temperatures simultaneously, convenient and practical, and had heat-insulating property, it is possible to provide the drinking water of high-temperature, it is applied widely, and realize the purpose of saving water resource, electric energy, it should be widely promoted.

Description

A kind of temperature adjustable drinking device
Technical field
The present invention relates to a kind of water dispensers, and in particular to a kind of temperature adjustable drinking device.
Background technology
Water dispenser is mostly extruded drinking water using pressure principle used at present, i.e., when we pick up the same of drinking water When, by " the new water " that has equivalent from continuously in injection heating or refrigerant tank, making us in most cases in bucket What is drunk is a kind of " mixing " water.If in addition, not closing the heater switch of water dispenser, heating system can add drinking water repeatedly Heat, and heating drinking water repeatedly can make the nitrate in water be transformed into nitrite, and nitrite can make it is blood red in human body Albumen becomes nitrito- hemoglobin, and red blood cell can be allowed to lose the function of carrying oxygen, and long-term drinking can make nitrite exist People's cylinder accumulation can form carcinogen when reaching doses, seriously endanger health.
Application No. is 20112034692568 utility models for China, disclose a kind of energy-saving healthy water dispenser, the drinking-water Machine changes traditional water dispenser to the repeated heating defect of drinking water, ensures the healthy and safe of drinking water.China application No. is 2013207670698 utility model, the improvement to previous water dispenser can be prevented from heating drinking water repeatedly, be filled simultaneously Divide the boiling water for utilizing and not picking up cooling in time, but still has the following defects:First, warm/cold water water tank is not provided with heat preservation and arranges It applies, causes the warm water heat loss in it very fast, cannot be satisfied the demand for drinking high-temperature boiling water, especially cold snap, In addition the water dispenser is not provided with temperature regulation measure, can not provide three kinds of temperature of common drinking water, poor practicability;Second, It is not provided with temperature indicating device on warm/cold water water tank, cannot intuitively know the temperature of water in warm/cold water water tank, it can not Meet specific requirement in special circumstances, leads to the poor performance of water dispenser.
Invention content
In view of the deficienciess of the prior art, the present invention provides a kind of heat preservation energy-saving, can provide three kinds of normal temperature boiling water Temperature-adjusting type drinking device.
In order to achieve the above object, the technical solution that the present invention takes:
A kind of temperature adjustable drinking device, including heating system, the heating system include heating tank, on the heating tank Equipped with warm water outlet pipe, which is equipped with solenoid valve and its end is set on warm water heat insulated tank, the warm water heat preservation storage The upper and lower float switch being connect with the solenoid valve in warm water outlet pipe is equipped in tank, the warm water heat insulated tank is equipped with temperature Water water receiving pipe and one side is connected with lower water temperature tank by low temperature water pipe, is equipped between the lower water temperature tank and heating tank High-temperature conduit is equipped with solenoid valve on the low and high temperature water pipe, be equipped in the lower water temperature tank with positioned at low and high temperature water The upper and lower float switch of solenoid valve connection on pipe, is additionally provided on the lower water temperature tank and brews the first of water temperature for providing Thermoswitch, the second thermoswitch for providing hot drink water temperature, the third thermoswitch for providing room temperature water temperature, the water Temperature adjusts and is additionally provided with water receiving pipe on tank, which is equipped with the solenoid valve being connect with switch block, and the switch block includes The water receiving switch being connect respectively with the first, second and third thermoswitch.
As optimal technical scheme, in order to intuitively show the temperature of boiling water in warm water heat insulated tank, to meet special feelings Specific requirement under condition, improves the overall performance of drinking device, and the warm water heat insulated tank is equipped with thermocouple, the thermocouple and temperature Spend display connection.
As optimal technical scheme, the in order to prevent waste of Water Energy, while it is longer to avoid lower water temperature tank from accumulating the time Cold water, influences the quality of drinking water, and the lower water temperature tank is equipped with the cold water discharge pipe for arranging deposition cold water.
As optimal technical scheme, in order to have alarm when warm water heat insulated tank completely holds, to cut off drinking device Controller or exclude water in warm water heat insulated tank, realize energy saving and healthy drinking water be provided, on the warm water heat insulated tank Equipped with the full appearance alarm lamp being connect with its interior floating ball switch.
As optimal technical scheme, in order to have alarm when lower water temperature tank completely holds, to cut off drinking device Controller or exclude lower water temperature tank in water, realize it is energy saving and provide healthy drinking water, the lower water temperature tank be equipped with The full appearance alarm lamp of its interior floating ball switch connection.
As optimal technical scheme, in order to ensure that the warm water after heating tank cooling can disposably be stored in warm water heat preservation storage In tank, to provide the drinking water of health to the user, the warm water heat insulated tank volume is heat tank volume 1~1.1 times.
Compared with prior art, the device have the advantages that:
1, warm water heat insulated tank is set, can both prevent the waste of the boiling water to cool down to not picking up in time, have simultaneously Heat-insulating property prevents heat quickly to scatter and disappear, heat preservation energy-saving, and can meet high warm water drinks demand, is suitable for cold snap;If Set the lower water temperature tank of adjustable water temperature, it is possible to provide it often needs to drink the water temperature of three kinds of temperature in life, it is convenient and practical;This peripheral hardware The switch block for setting control lower water temperature tank, automatically controls, easy to operate.
2, cold water discharge pipe is set, the waste of Water Energy is on the one hand prevented, when lower water temperature tank on the other hand being avoided to accumulate Between longer cold water, ensure the high-quality of drinking water.
3, setting can show the temperature indicating device of water temperature in warm water heat insulated tank, can intuitively know in warm water heat insulated tank The temperature of water, user can pick up the water of suitable temperature according to temperature indicator, meet specific requirement in special circumstances, practical performance It is high.
4, warm water heat insulated tank, lower water temperature tank are respectively provided with the full appearance alarm lamp being connect with its interior floating ball switch, Alarm is sent out when warm water heat insulated tank, lower water temperature tank completely hold, reminds the user that the controller of cut-out drinking device Or the water in exclusion warm water heat insulated tank, lower water temperature tank, while realizing energy saving, provide the drinking water of health.
5, setting volume is 1~1.1 times of warm water heat insulated tank for heating tank volume, is ensured in heating tank after boiling water cooling It can all be discharged in warm water heat insulated tank, be primary boiled water to ensure the water in each heat insulation tank, and then be user The drinking water of health is provided.
Description of the drawings
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
Fig. 1 is the structural diagram of the present invention;
Drawing reference numeral:1, heating system, 1-1, heating tank, 1-2, heating rod, 1-3, cold water water injection pipe, 1-4, exhaust pipe, 1-5, cooling control thermoswitch, 1-6, boiling water are taken over, 1-7, overheating protection thermoswitch, 1-8, computer heating control thermoswitch, 2, warm water heat insulated tank, 2-1, warm water outlet pipe, 2-2, warm water water receiving pipe, 2-3, thermocouple, 3, solenoid valve, 4, floating ball switch, 5, lower float switch, 6, low temperature water pipe, 7, lower water temperature tank, 7-1, the first thermoswitch, 7-2, the second thermoswitch, 7-3, Three thermoswitches, 7-4, water receiving pipe, 7-5, cold water discharge pipe, 8, high-temperature conduit, 9, exhaust outlet.
Specific implementation mode
A kind of specific embodiment of the present invention, a kind of more appearance type health drinking devices, including heating system are proposed as shown in Figure 1 1, the heating system 1 includes heating tank 1-1, and heating rod 1-2, floating ball switch 4, lower floating ball in heating tank 1-1 are opened 5 are closed, cold water water injection pipe 1-3, the exhaust pipe 1-4 of the outer upper ends heating tank 1-1 are set to, the boiling water set on heating tank 1-1 outer lower ends connects Pipe 1-6 is set to the overheating protection thermoswitch 1-7, computer heating control thermoswitch 1-8, cooling control temperature-sensitive of the both sides heating tank 1-1 Switch 1-5, the heating tank 1-1 are equipped with outfall sewer 2, and heating rod 1-2 is controlled by floating ball switch 4, lower float switch 5 , only in the state that floating ball switch 4, lower float switch 5 are all in disconnection, heating rod 1-2 can just start to heating tank Water in 1-1 is heated, and when water temperature reaches requirement temperature, computer heating control thermoswitch 1-8 will disconnect, overheating protection temperature-sensitive Switch 1-7 is that occur cutting off circuit in time when dry combustion method in unexpected situations;The heating tank 1-1 is equipped with warm water outlet pipe 2- What is connect with cooling control thermoswitch 1-5 on 1, warm water outlet pipe 2-1 is equipped with solenoid valve 3 and its end set on warm water heat preservation It is equipped with the floating ball switch 4 being connect with the solenoid valve in warm water outlet pipe on storage tank 2, in the warm water heat insulated tank 2, floats downward Ball switch 5, the warm water heat insulated tank 2 is equipped with warm water water receiving pipe 2-2 and one side is connected with water temperature by low temperature water pipe 6 Tank 7 is adjusted, exhaust outlet 9, the lower water temperature tank 7 and heating tank are equipped on the warm water heat insulated tank 2, lower water temperature tank 7 It is equipped with high-temperature conduit 8 between 1-1, is equipped with solenoid valve 3 on the low temperature water pipe 6, high-temperature conduit 8, in the lower water temperature tank 7 Equipped with floating ball switch 4, the lower float switch 5 being connect with the solenoid valve 3 positioned at low temperature water pipe 6, high-temperature conduit 8, the water Temperature, which is adjusted, to be additionally provided on tank 7 for providing the first thermoswitch 7-1 for brewing water temperature, the second temperature-sensitive for providing hot drink water temperature Switch 7-2, the third thermoswitch 7-3 for providing room temperature water temperature, best Drinking Water Temperature is 35 DEG C to 38 DEG C in life, is most connect Nearly body temperature, and for hot drink, such as it is 50 DEG C to rush the optimum temperature of hydromel, warm milk, electuary and makes tea etc. at 60 DEG C The temperature of the first thermoswitch 7-1, the second thermoswitch 7-2, third thermoswitch 7-3 is arranged in the above optimum, the present embodiment Respectively 60 DEG C, 40 DEG C, 28 DEG C, water receiving pipe 7-4 is additionally provided on the lower water temperature tank 7, and water receiving pipe 7-4 is equipped with and switch Component connection solenoid valve 3, the switch block include respectively with the first thermoswitch 7-1, the second thermoswitch 7-2, third 3 water receivings of thermoswitch 7-3 connections switch, and heating system 1 and all electric appliance original papers are connect with power-supply controller of electric.
The warm water heat insulated tank 2 is equipped with the thermocouple 2-3 that can measure its interior water temperature, and thermocouple 2-3 is aobvious with temperature Show that device connects, and thermocouple 2-3, temperature indicator are connect with power-supply controller of electric, temperature indicator intuitively shows that warm water is kept the temperature The temperature of boiling water in storage tank 2, user can pick up the water of suitable temperature according to temperature indicator, and satisfaction is specifically wanted in special circumstances It asks, practical performance is high.
The lower water temperature tank 7 is equipped with the cold water discharge pipe 7-5 for arranging deposition cold water, and cold water discharge pipe 7-5 can connect It connects refrigeration water tank or other needs the device of water at low temperature, can both prevent the waste of Water Energy, while avoiding lower water temperature tank 7 The interior longer cold water of sedimentation time, reduces the quality of drinking water.
The warm water heat insulated tank 2 is equipped with the full appearance alarm lamp being connect with its interior floating ball switch 4, full to hold alarm Indicator light is connect with power-supply controller of electric, when warm water heat insulated tank 2 completely holds, in floating ball switch 4 shake-up go out set on warm water Solenoid valve 3 on water pipe 2-1 is closed, and is also possible to prevent solenoid valve 3 after warm water heat insulated tank 2 completely holds and is broken down, full to hold alarm Indicator light is bright and sends out alarm sound, and user is prompted to cut off the controller of drinking device or exclude in warm water heat insulated tank 2 Water realizes energy saving and offer healthy drinking water.
The lower water temperature tank 7 is equipped with the full appearance alarm lamp being connect with its interior floating ball switch 4, and full appearance alarm refers to Show that lamp is connect with power-supply controller of electric, when lower water temperature tank 7 completely holds, in floating ball switch 4 touch set on low temperature water pipe 6, The solenoid valve 3 of high-temperature conduit 8 is turned off, and is also possible to prevent solenoid valve 3 after lower water temperature tank 7 completely holds and is broken down, full to hold alarm Indicator light is bright and sends out alarm sound, prompts user to cut off the controller of drinking device or excludes the water in lower water temperature tank 7, Energy saving and offer healthy drinking water is provided.
2 volume of warm water heat insulated tank is 1~1.1 times of heating tank 1-1 volumes, is preferably provided warm water heat insulated tank 2 Volume be slightly larger than the volume of heating tank 1-1 and cannot be satisfied heating tank 1-1 drop if the volume setting of warm water heat insulated tank 2 is too small Warm water after temperature can be disposably stored in warm water heat insulated tank 2, and the water to remain in heating tank 1-1 can heat repeatedly, And then generate harmful substance;If the volume setting of warm water heat insulated tank 2 is excessive, the water in warm water heat insulated tank 2 is heating tank 1-1 It is repeatedly discharged into the mixing of warm water, drinking water is not pure, reduces quality.
When the present invention uses:When to begin to warm up tank 1-1, warm water heat insulated tank 2, lower water temperature tank 7 be sky, startup power supply Controller, the solenoid valve 3 on cold water water injection pipe 1-3 are opened, and in cold water injection heating tank 1-1, wait for that cold water is injected into heating tank 1-1 When interior floating 4 position of ball switch, floating ball switch 4 touches the solenoid valve 3 on cold water water injection pipe 1-3 and closes, 1-2 pairs of heating rod For cool water heating in heating tank 1-1 until boiled, user directly can pick up boiling water from boiling water take over 1-6;In tank 1-1 to be heated Water temperature when being down to 95 DEG C, cooling control thermoswitch 1-5 starts to work, and the solenoid valve 3 touched on warm water outlet pipe 2-1 is opened It opens, the boiling water after cooling is stored in by warm water outlet pipe 2-1 in warm water heat insulated tank 2, user is according to display warm water heat preservation storage The temperature indicator of water temperature in tank 2 picks up suitable boiling water from warm water water receiving pipe 2-2, if the temperature of display is unsatisfactory for needing When asking, different water receivings can be selected to switch according to demand, such as when " brewing " button of 60 DEG C of selection, heating tank 1-1 starts work Make, cold water through it is primary it is boiled after, the solenoid valve 3 on high-temperature conduit 8 starts, to inject high warm water to lower water temperature tank 7, together When low temperature water pipe 6 on solenoid valve 3 start, warm water heat insulated tank 2 injects cold water to lower water temperature tank 7, when lower water temperature tank 7 When interior water temperature reaches 60 DEG C, the solenoid valve 3 on low temperature water pipe 6, high-temperature conduit 8 is closed, while the electricity on water receiving pipe 7-4 Magnet valve starts, and user can pick up 60 DEG C of boiling water;Similarly, user's choosing then press by 40 DEG C of " hot drink " button and 28 DEG C of " room temperature " Button also carries out similar action.
After a period of time to be used, when water level decreasing to lower 5 position of float switch in warm water heat insulated tank 2, lower floating ball Switch 5 is started to work, and the solenoid valve 3 touched on warm water outlet pipe 2-1 is opened, and the boiling water out of heating tank 1-1 after injection cooling waits for When water level in warm water heat insulated tank 2 rises to floating 4 position of ball switch, floating ball switch 4 is started to work, and touches warm water outlet pipe Solenoid valve 6 on 2-1 is closed, to which heating tank 1-1 stops injecting boiling water into warm water heat insulated tank 2.
Certainly, only the preferred embodiments of the disclosure is described in detail in conjunction with attached drawing above, not with this Limit the practical range of the present invention, equivalence changes made by all principles under this invention, construction and structure should all be covered by this In the protection domain of invention.

Claims (6)

1. a kind of temperature adjustable drinking device, including heating system (1), the heating system (1) includes heating tank (1-1), It is characterized in that:The heating tank (1-1) be equipped with warm water outlet pipe (2-1), the warm water outlet pipe (2-1) be equipped with solenoid valve (3) and Its end is set on warm water heat insulated tank (2), be equipped in the warm water heat insulated tank (2) in warm water outlet pipe (2-1) Solenoid valve (3) connection upper and lower float switch (4,5), the warm water heat insulated tank (2) be equipped with warm water water receiving pipe (2-2) and One side is connected with lower water temperature tank (7) by low temperature water pipe (6), is set between the lower water temperature tank (7) and heating tank (1-1) There is high-temperature conduit (8), solenoid valve (3) is equipped on the low and high temperature water pipe (6,8), is equipped in the lower water temperature tank (7) equal The upper and lower float switch (4,5) being connect with the solenoid valve (3) on low and high temperature water pipe (6,8), the lower water temperature tank (7) On be additionally provided with for providing the first thermoswitch (7-1) for brewing water temperature, the second thermoswitch (7- for providing hot drink water temperature 2), the third thermoswitch (7-3) for providing room temperature water temperature is additionally provided with water receiving pipe (7-4) on the lower water temperature tank (7), The water receiving pipe (7-4) is equipped with the solenoid valve (3) with switch block control connection, and the switch block includes respectively with the One, the water receiving switch of two, three thermoswitches (7-1,7-2,7-3) connection.
2. a kind of temperature adjustable drinking device according to claim 1, it is characterised in that:The warm water heat insulated tank (2) It is equipped with thermocouple (2-3), which connect with temperature indicator.
3. a kind of temperature adjustable drinking device according to claim 2, it is characterised in that:On the lower water temperature tank (7) Equipped with cold water discharge pipe (7-5).
4. a kind of temperature adjustable drinking device according to claim 2, it is characterised in that:The warm water heat insulated tank (2) It is equipped with the full appearance alarm lamp being connect with its interior floating ball switch (4).
5. a kind of temperature adjustable drinking device according to claim 2, it is characterised in that:On the lower water temperature tank (7) Equipped with the full appearance alarm lamp being connect with its interior floating ball switch (4).
6. a kind of temperature adjustable drinking device according to Claims 1 to 5 any one, it is characterised in that:The warm water Heat insulated tank (2) volume is 1~1.1 times of heating tank (1-1) volume.
CN201610357608.9A 2016-05-25 2016-05-25 A kind of temperature adjustable drinking device Expired - Fee Related CN105795913B (en)

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Application Number Priority Date Filing Date Title
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CN105795913B true CN105795913B (en) 2018-07-24

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CN106212708A (en) * 2016-07-29 2016-12-14 海宁水磨坊自动化设备有限公司 constant temperature numerical control soybean soaking device
CN106940081A (en) * 2017-04-26 2017-07-11 叶海青 One kind drinks water heating system and its control method
CN111631161A (en) * 2020-07-03 2020-09-08 杭州科皇饲料有限公司 Water tower type livestock and poultry drinking water management system

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Publication number Priority date Publication date Assignee Title
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CN201213728Y (en) * 2008-05-09 2009-04-01 叶蓁 Intelligent health drinking machine
CN101554292A (en) * 2009-05-30 2009-10-14 周文乾 Drinking water attemperator and drinking water equipment composed thereof
CN201445359U (en) * 2009-06-30 2010-05-05 河海大学 Intelligent water temperature control water dispenser
CN201529019U (en) * 2009-05-30 2010-07-21 周文乾 Drinking water temperature adjusting device and drinking water supply equipment composed by the device
CN201806541U (en) * 2010-10-09 2011-04-27 黄买番 Stepless variable-temperature drinking water machine
CN201870451U (en) * 2010-11-15 2011-06-22 王新学 Water dispenser capable of regulating temperature
CN204445409U (en) * 2015-03-17 2015-07-08 陈玉水 A kind of brewed in hot water machine of heat stepwise
CN205903175U (en) * 2016-05-25 2017-01-25 钦州学院 Adjustable warm type watering device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2666319Y (en) * 2003-12-18 2004-12-29 曹福梁 Multifunction drinker
CN201213728Y (en) * 2008-05-09 2009-04-01 叶蓁 Intelligent health drinking machine
CN101554292A (en) * 2009-05-30 2009-10-14 周文乾 Drinking water attemperator and drinking water equipment composed thereof
CN201529019U (en) * 2009-05-30 2010-07-21 周文乾 Drinking water temperature adjusting device and drinking water supply equipment composed by the device
CN201445359U (en) * 2009-06-30 2010-05-05 河海大学 Intelligent water temperature control water dispenser
CN201806541U (en) * 2010-10-09 2011-04-27 黄买番 Stepless variable-temperature drinking water machine
CN201870451U (en) * 2010-11-15 2011-06-22 王新学 Water dispenser capable of regulating temperature
CN204445409U (en) * 2015-03-17 2015-07-08 陈玉水 A kind of brewed in hot water machine of heat stepwise
CN205903175U (en) * 2016-05-25 2017-01-25 钦州学院 Adjustable warm type watering device

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