CN211093437U - Intelligent timing device for water dispenser - Google Patents
Intelligent timing device for water dispenser Download PDFInfo
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- CN211093437U CN211093437U CN201921562650.XU CN201921562650U CN211093437U CN 211093437 U CN211093437 U CN 211093437U CN 201921562650 U CN201921562650 U CN 201921562650U CN 211093437 U CN211093437 U CN 211093437U
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Abstract
The utility model relates to an intelligent timing device for a water dispenser, the water dispenser comprises a water source water inlet end, a purification pressurizing unit normal temperature water pressure tank and a hot water tank, the water outlet of the hot water tank is connected with a boiling water outlet nozzle through a hot water outlet solenoid valve, the water outlet of the normal temperature water pressure tank is connected with the normal temperature water outlet nozzle through a normal temperature water outlet solenoid valve, and the hot water outlet solenoid valve and the normal temperature water outlet solenoid valve are respectively connected with a boiling water switch and a normal temperature water switch; the intelligent timing device comprises a regular drainage unit for draining and emptying the water dispenser, a timing disinfection unit for disinfecting a water outlet end pipeline and a water outlet of the water dispenser, a timing startup and shutdown unit for controlling the operation of the water dispenser and a processing unit respectively connected with the regular drainage unit, the timing disinfection unit and the timing startup and shutdown unit. The utility model discloses have high quality of water safety guarantee function, can provide high-quality drinking water anytime and anywhere.
Description
Technical Field
The utility model relates to a drinking water equipment field particularly, relates to an intelligent timing device for water dispenser.
Background
Direct drinking water is water that can meet the standard of direct drinking healthy water published by the world health organization. At present, some direct water dispensers in the market still have the problems of incomplete filtration, short service life of filter elements, no active pollution discharge function and the like. If the water dispenser does not take water for a long time or is in a place with a poor environment, bacteria are easy to breed to cause secondary pollution, and the water dispenser is not beneficial to human health; moreover, when the water dispenser is not used by people for a long time and is used again, the water quality may deteriorate, and the drinking safety of the water dispenser cannot be ensured.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an intelligence timing device has high quality of water safety guarantee function, can provide high-quality drinking water anytime and anywhere.
The utility model adopts the technical proposal that: the intelligent timing device comprises a regular drainage unit for draining and emptying the water dispenser, a timing disinfection unit for disinfecting a water outlet end pipeline and a water outlet of the water dispenser, a timing switch unit for controlling the operation time of the water dispenser and a timing switch unit respectively connected with the regular drainage unit, The timing disinfection unit and the timing startup and shutdown unit are connected with each other.
Intelligence timing device in, the water dispenser includes first drainage mouth and second outlet, periodic drainage unit is including connecting purify waste water discharge solenoid valve between pressure boost unit and the second outlet, connect the hot water drainage solenoid valve between hot-water tank and the first drainage mouth and connect the normal atmospheric temperature water drainage solenoid valve between normal atmospheric temperature water pressure tank and second outlet, processing unit respectively with waste water discharge solenoid valve, hot water drainage solenoid valve and normal atmospheric temperature water drainage solenoid valve are connected, and timing control waste water discharge solenoid valve, hot water drainage solenoid valve and normal atmospheric temperature water drainage solenoid valve are opened, so that purify the water in pressure boost unit, hot-water tank, the normal atmospheric temperature water pressure tank and regularly discharge.
In the intelligent timing device, the periodic drainage unit is further arranged to include a flow switch at the outlet of the normal temperature water pressure tank, the flow switch is connected to the processing unit.
In the intelligent timing device of the utility model, the normal temperature water outlet nozzle is communicated with the water outlet of the hot water tank, the timing disinfection unit comprises a pipeline disinfection solenoid valve arranged between the normal temperature water outlet nozzle and the water outlet of the hot water tank, the processing unit is connected and controls the hot water outlet solenoid valve, the pipeline disinfection solenoid valve and the normal temperature water outlet solenoid valve, and the hot water outlet solenoid valve, the pipeline disinfection solenoid valve and the normal temperature water outlet solenoid valve are all normally closed solenoid valves; when the boiling water switch is turned on, the processing unit controls the hot water outlet electromagnetic valve to be turned on, so that hot water in the hot water tank flows out of the boiling water outlet nozzle through the hot water outlet electromagnetic valve; when the normal-temperature water switch is opened, the processing unit controls the normal-temperature water outlet electromagnetic valve to be opened, so that water in the normal-temperature pressure tank flows out of the normal-temperature water outlet nozzle through the normal-temperature water outlet electromagnetic valve; when a high-temperature disinfection instruction is received or the current time is the high-temperature disinfection time, the processing unit controls the pipeline disinfection electromagnetic valve and the hot water outlet electromagnetic valve to be opened for a period of time respectively, so that water at a hot water outlet of the hot water tank flows out from the boiling water outlet nozzle and the normal-temperature water outlet nozzle through the hot water outlet electromagnetic valve and the pipeline disinfection electromagnetic valve respectively, and the two water outlets are disinfected at high temperature.
In the intelligent timer of the present invention, the timer on/off unit comprises a timer switch for controlling the power on/off of the water dispenser and the intelligent timer.
In the intelligent timing device, the intelligent timing device further comprises a communication unit connected with the processing unit, the communication unit comprises a wireless or wired communication unit, the wired communication unit comprises a network card, and the wireless communication unit comprises a WIFI unit or a 4G or 5G mobile communication unit.
In the intelligent timing device, the purification and pressurization unit comprises a primary filter, a secondary filter, a tertiary filter, a booster pump and a reverse osmosis membrane filter which are connected in series, and a booster pump water inlet electromagnetic valve is arranged between the tertiary filter and the booster pump.
Intelligence timing device in, still including setting up the water source intake end with purify leading water route protector between the pressure boost unit, leading water route protector is in including holding the chamber, holding the chamber entry, holding the chamber export, holding chamber bottom drain and setting filter screen between entry and the export, wherein, the entry connection the water source intake end, exit linkage the one-level filter, the bottom drain communicates to the second outlet through the blowdown solenoid valve.
Intelligence timing device in, processing unit still is in with the setting in the water source is intake in the end, is used for measuring the water source is intake and is held hydraulic pressure sensor and be connected, when current time is blowdown time or work as pressure sensor detects the water source is intake and is held water pressure and trun into when normal water pressure from the decompression, processing unit control blowdown solenoid valve opens a period, makes the water that the water source was intake and is held the entering is direct to be defeated extremely through the bottom drain the second outlet is discharged.
The utility model provides an intelligent timing device for a water dispenser, including periodic drainage unit, timing disinfection unit and timing switch unit, can realize regularly draining the waterway system of water dispenser through periodic drainage unit, guarantee the new freshness of quality of water in the water dispenser, effectively prevented the water source in the water tank because the long-time nobody uses the situation that the quality of water may have deteriorated when reusing, solved the problem that the water of long-time storage is renewed after night and the long-time storage water, guaranteed drinking water safety; the timing disinfection unit reasonably utilizes the high-temperature hot water of the water dispenser to carry out high-temperature disinfection on the open pipeline and the two water outlet nozzles exposed in the air, so that the water outlet of the water outlet nozzles can be ensured not to enter the cup due to bacteria breeding in the air after being exposed for a long time; the automatic power-off of the water dispenser can be realized through the timing on-off unit, so that the aims of energy conservation and safety are fulfilled.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic diagram of a pipeline structure according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the front waterway protector in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, an embodiment of the present invention provides an intelligent timing device, which is used in a water dispenser, the water dispenser includes a water inlet end 26, a purification and pressurization unit for purifying and pressurizing water input from the water inlet end 26, a normal temperature water pressure tank 16 for storing the purified and pressurized water, and a hot water tank 17 for heating water output from the normal temperature water pressure tank 16, a water outlet of the hot water tank 17 is connected to a boiling water outlet nozzle 21 through a hot water outlet electromagnetic valve 33, a water outlet of the normal temperature water pressure tank 16 is connected to a normal temperature water outlet nozzle 22 through a normal temperature water outlet electromagnetic valve 35, the hot water outlet electromagnetic valve 33 and the normal temperature water outlet electromagnetic valve 35 are respectively connected to a boiling water switch and a normal temperature water switch, the boiling water switch will control the hot water outlet electromagnetic valve 33 to be opened, so that hot water in the hot water tank 17 flows out from the boiling water outlet nozzle 21, and the normal temperature water switch will control the normal, the water at normal temperature in the water pressure tank 16 flows out from the water outlet nozzle 22. The intelligent timing device comprises a regular drainage unit for draining and emptying the water dispenser, a timing disinfection unit for disinfecting a water outlet end pipeline and a water outlet of the water dispenser, a timing startup and shutdown unit for controlling the operation of the water dispenser and a processing unit respectively connected with the regular drainage unit, the timing disinfection unit and the timing startup and shutdown unit.
Further, the purification and pressurization unit in the present embodiment includes a primary filter 11, a secondary filter 12, a tertiary filter 13, a pressurization pump 14, a reverse osmosis membrane filter 15, and a normal temperature water pressure tank 16 connected in series with each other, and a pressurization pump water inlet solenoid valve 36 is installed between the tertiary filter 13 and the pressurization pump 14. The primary filter 11 contained 10 "5 micron PP wool, the secondary filter 12 contained 10" granular activated carbon, the tertiary filter 13 contained 10 "1 micron PP wool, the booster pump 14 was a 400 gallon R0 booster pump, and the reverse osmosis filter 15 contained 400 gallons reverse osmosis membrane. The water can be cleaned of tiny impurity particles and harmful substances through the graded filtration of the first-stage filter 11, the second-stage filter 12 and the third-stage filter 13, so that the water body is cleaner, and finally the water body is filtered through the reverse osmosis membrane in the reverse osmosis membrane filter 15, the filtering precision of the water body reaches 0.0001 micron, tiny substances such as heavy metal ions and tiny bacteria can be directly filtered, only water molecules are allowed to pass through, and generally, the water filtered through the reverse osmosis membrane filter is pure water which can be directly drunk. The bottom of the water dispenser is provided with a first water discharge port 24 and a second water discharge port 25, the periodic water discharge unit comprises a wastewater discharge electromagnetic valve 30 connected between the reverse osmosis membrane filter 15 and the second water discharge port 25, a hot water discharge electromagnetic valve 32 connected between the hot water tank 17 and the first water discharge port 24, and a normal temperature water discharge electromagnetic valve 29 connected between the normal temperature water pressure tank 16 and the second water discharge port 25, the treatment unit is respectively connected with the wastewater discharge electromagnetic valve 30, the hot water discharge electromagnetic valve 32 and the normal temperature water discharge electromagnetic valve 29, and the wastewater discharge electromagnetic valve 30, the hot water discharge electromagnetic valve 32 and the normal temperature water discharge electromagnetic valve 29 are controlled to be opened at regular time, so that water in the reverse osmosis membrane filter 15, the hot water tank 17 and the normal temperature water pressure tank 16 is. The periodic water drainage unit also comprises a flow switch arranged at the water outlet of the normal-temperature water pressure tank 16, and the flow switch is connected with the processing unit. The flow switch can monitor the liquid flowing condition in the pipeline in real time and provide switching value output. When the water flow at the water outlet of the normal temperature water pressure tank 16 is detected to flow, the flow switch sends a signal to the processing unit; when the processing unit does not detect the signal sent by the flow switch within a certain time (e.g., 24 hours), the processing unit controls the wastewater discharge solenoid valve 30, the hot water discharge solenoid valve 32, and the normal temperature water discharge solenoid valve 29 to be opened, so that the water in the reverse osmosis membrane filter 15, the hot water tank 17, and the normal temperature water pressure tank 16 is discharged. The regular drainage unit can realize regular drainage of a waterway system of the water dispenser, ensures the freshness of water quality in the water dispenser, effectively prevents the situation that the water quality is possibly deteriorated when a water source in the water tank is reused because the water source is not used by people for a long time, solves the problem that water is stored for a long time and is replaced with new water at night, and ensures the safety of drinking water. Preferably, the hot water tank 17 in this embodiment adopts a step-by-step water boiler, and the step-by-step water boiler heats the drinking water in a manner of bottom-layer water inlet layer-by-layer step-by-layer layered heating, so that the generation degree of the "negative and positive water" can be gradually relieved, repeated heating can be avoided, and the freshness of the hot water can be further ensured.
Further, the timing disinfection unit comprises a pipeline disinfection electromagnetic valve, the normal-temperature water outlet nozzle 22 is communicated with the water outlet of the hot water tank 17, and the pipeline disinfection electromagnetic valve is arranged in a pipeline between the normal-temperature water outlet nozzle 22 and the hot water tank 17. The processing unit is connected with and controls the hot water outlet electromagnetic valve 23, the pipeline disinfection electromagnetic valve 34 and the normal-temperature water outlet electromagnetic valve 35, and the hot water outlet electromagnetic valve 23, the pipeline disinfection electromagnetic valve 34 and the normal-temperature water outlet electromagnetic valve 35 are all normally closed electromagnetic valves; the processing unit is also connected with a boiled water switch and a normal temperature water switch respectively, and the boiled water switch and the normal temperature water switch can be self-reset buttons or two-position state buttons. When the boiling water switch is turned on, the processing unit controls the hot water outlet electromagnetic valve 33 to be opened, so that the hot water in the hot water tank 17 flows out of the boiling water outlet nozzle 21 through the hot water outlet electromagnetic valve 33; when the normal temperature water switch is turned on, the processing unit controls the normal temperature water outlet electromagnetic valve 35 to be turned on, so that the purified and sterilized normal temperature water flows out of the normal temperature water outlet nozzle 22 through the normal temperature water outlet electromagnetic valve 35; when a high-temperature disinfection instruction is received or the current time is the high-temperature disinfection time, the processing unit respectively controls the hot water outlet electromagnetic valve 33 and the pipeline disinfection electromagnetic valve 34 to be opened for a period of time, so that the hot water in the hot water tank 17 respectively flows out of the boiled water outlet nozzle 21 and the normal-temperature water outlet nozzle 22 through the hot water outlet electromagnetic valve 33 and the pipeline disinfection electromagnetic valve 34 for a period of time, and the two water outlets are disinfected at high temperature. The processing unit can set the high-temperature disinfection time through a timer of the processing unit, for example, if the processing unit sets that 3 points in the morning each day starts the pipeline disinfection electromagnetic valve 34 and the hot water outlet electromagnetic valve 33 to be respectively opened for one end time to carry out high-temperature disinfection, or detects that the boiled water switch and the normal-temperature water switch are not used for 24 hours, the pipeline disinfection electromagnetic valve 34 and the hot water outlet electromagnetic valve 33 are respectively opened for one end time to carry out high-temperature disinfection. The timing disinfection unit reasonably utilizes the high-temperature hot water of the water dispenser to carry out high-temperature disinfection on the open pipeline and the two water outlet nozzles exposed in the air, and can ensure that the water outlet nozzles can not breed bacteria into the cup due to long-term exposure in the air instantly. In the embodiment, an ultraviolet sterilizing lamp 19 and a five-stage filter 18 with rear granular activated carbon are arranged between the normal-temperature water pressure tank 16 and the hot water tank inlet valve 31. Through the filtering of the five-stage filter 18 and the long-time irradiation of the ultraviolet germicidal lamp 19, the water quality can be further purified, all harmful bacteria in the water can be killed, and the water quality safety of the drinking water is further ensured.
The timing on-off unit comprises a timing switch for controlling the on-off of the water dispenser and the power supply of the intelligent timing device. The timing switch is equipped with a timing device, and the timing device is used for frequency division counting through gear transmission or an integrated circuit. When the time is accumulated to a preset value or indicated to a preset moment, the timer sends a signal to control the actuating mechanism. The automatic power-off of the water dispenser can be realized through the timing on-off unit, so that the aims of energy conservation and safety are fulfilled. The intelligent timing device provided in this embodiment further includes a communication unit connected to the processing unit, the communication unit includes a wireless or wired communication unit, the wired communication unit includes a network card, and the wireless communication unit includes a WIFI unit or a 4G, 5G mobile communication unit. The intelligent timing device has the function of carrying out wired or wireless communication with a background management terminal or an intelligent terminal through the communication unit, if a user can establish Bluetooth connection between a mobile phone and the processing unit, the mobile phone is used as a remote controller to control the opening and closing of the hot water outlet electromagnetic valve 33, the normal temperature water outlet electromagnetic valve 35 or the pipeline disinfection electromagnetic valve 34, the operation of the intelligent timing device is remotely controlled, and great convenience is brought to managers.
As shown in FIG. 2, the embodiment further comprises a preposed waterway protector 27 arranged between the water inlet end 26 of the water source and the primary filter 11, the preposed waterway protector 27 comprises a cavity 271, a cavity inlet 273, a cavity outlet 274, a cavity bottom drain 275 and a filter screen 272 arranged between the inlet 273 and the outlet 274, wherein the inlet 273 is connected with the water inlet 26 of the water source, the outlet 274 is connected with the primary filter 11, the bottom drain 275 is communicated with the second drain 25 through a drain solenoid valve 28. the processing unit is connected with a control drain solenoid valve 28 and is connected with a pressure sensor for measuring the water pressure of the water inlet 26 of the water source, the drain solenoid valve 28 is a normally closed solenoid valve, under normal conditions, tap water enters the cavity 271 from the water inlet 26 of the water source and the inlet 273, is filtered by the filter screen 272 and then is output to a purification pressurizing unit, when the water pressure of the water inlet 26 is detected to be converted from a loss pressure value which is lower than the normal water pressure value, the processing unit controls the drain 28 to be opened, the water inlet 26 is directly discharged from the drain outlet via a drain outlet, and is opened after the drain outlet, the drain outlet is connected with a preset water discharge time control solenoid valve 30, even when the drain outlet is opened, the drain outlet is connected with a preset discharge time control solenoid valve 28, the drain outlet is connected with a preset drain outlet, the drain outlet is connected with a preset solenoid valve 28, the drain outlet is connected with a drainage unit is connected with a preset drain outlet, the drain outlet is connected with a drainage unit is connected with a drainage.
The computer program involved in the embodiment of the present invention belongs to a simple program that can be easily implemented by those skilled in the art using existing development platforms and well-known programming methods, and does not belong to the improvement of the computer program itself, and is not described herein again.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, and all of them fall within the protection scope of the present invention.
Claims (9)
1. An intelligent timing device for a water dispenser, the water dispenser comprises a water inlet end of a water source, a purification pressurizing unit for purifying and pressurizing water input from the water inlet end of the water source, a normal-temperature water pressure tank for storing the purified and pressurized water, and a hot water tank for heating the water output from the normal-temperature water pressure tank, wherein the water outlet of the hot water tank is connected with a boiling water outlet nozzle through a hot water outlet electromagnetic valve, the water outlet of the normal-temperature water pressure tank is connected with the normal-temperature water outlet nozzle through a normal-temperature water outlet electromagnetic valve, and the hot water outlet electromagnetic valve and the normal-temperature water outlet electromagnetic valve are respectively connected with a boiling water switch and a normal-temperature water switch The timing disinfection unit and the timing startup and shutdown unit are connected with each other.
2. The intelligent timing device as claimed in claim 1, wherein the water dispenser comprises a first water outlet and a second water outlet, the periodic water discharge unit comprises a wastewater discharge solenoid valve connected between the purification pressurization unit and the second water outlet, a hot water discharge solenoid valve connected between the hot water tank and the first water outlet, and a normal temperature water discharge solenoid valve connected between the normal temperature water pressure tank and the second water outlet, the processing unit is respectively connected with the wastewater discharge solenoid valve, the hot water discharge solenoid valve, and the normal temperature water discharge solenoid valve, and controls the wastewater discharge solenoid valve, the hot water discharge solenoid valve, and the normal temperature water discharge solenoid valve to be opened at regular time, so that water in the purification pressurization unit, the hot water tank, and the normal temperature water pressure tank is discharged at regular time.
3. The intelligent timing device as claimed in claim 2, wherein the periodic water drainage unit further comprises a flow switch disposed at a water outlet of the normal temperature water pressure tank, and the flow switch is connected to the processing unit.
4. The intelligent timing device according to claim 1, wherein the normal-temperature water outlet nozzle is communicated with a water outlet of a hot water tank, the timing disinfection unit comprises a pipeline disinfection solenoid valve arranged between the normal-temperature water outlet nozzle and the water outlet of the hot water tank, the processing unit is connected with and controls the hot water outlet solenoid valve, the pipeline disinfection solenoid valve and the normal-temperature water outlet solenoid valve, and the hot water outlet solenoid valve, the pipeline disinfection solenoid valve and the normal-temperature water outlet solenoid valve are all normally closed solenoid valves; when the boiling water switch is turned on, the processing unit controls the hot water outlet electromagnetic valve to be turned on, so that hot water in the hot water tank flows out of the boiling water outlet nozzle through the hot water outlet electromagnetic valve; when the normal-temperature water switch is opened, the processing unit controls the normal-temperature water outlet electromagnetic valve to be opened, so that water in the normal-temperature pressure tank flows out of the normal-temperature water outlet nozzle through the normal-temperature water outlet electromagnetic valve; when a high-temperature disinfection instruction is received or the current time is the high-temperature disinfection time, the processing unit controls the pipeline disinfection electromagnetic valve and the hot water outlet electromagnetic valve to be opened for a period of time respectively, so that water at a hot water outlet of the hot water tank flows out from the boiling water outlet nozzle and the normal-temperature water outlet nozzle through the hot water outlet electromagnetic valve and the pipeline disinfection electromagnetic valve respectively, and the two water outlets are disinfected at high temperature.
5. The intelligent timing device as claimed in claim 1, wherein the timing on/off unit comprises a timing switch for controlling the on/off of the water dispenser and the power supply of the intelligent timing device.
6. The intelligent timing device according to claim 1, further comprising a communication unit connected to the processing unit, wherein the communication unit comprises a wireless or wired communication unit, the wired communication unit comprises a network card, and the wireless communication unit comprises a WIFI unit or a 4G or 5G mobile communication unit.
7. The intelligent timing device as claimed in claim 1, wherein the purification and pressurization unit comprises a primary filter, a secondary filter, a tertiary filter, a pressurization pump and a reverse osmosis membrane filter connected in series with each other, and a pressurization pump water inlet solenoid valve is installed between the tertiary filter and the pressurization pump.
8. The intelligent timing device as claimed in claim 7, further comprising a front waterway protector disposed between the water inlet end of the water source and the purification and pressurization unit, wherein the front waterway protector comprises a cavity, a cavity inlet, a cavity outlet, a cavity bottom drain outlet, and a filter screen disposed between the inlet and the outlet, wherein the inlet is connected to the water inlet end of the water source, the outlet is connected to the primary filter, and the bottom drain outlet is connected to a second drain outlet through a drain solenoid valve.
9. The intelligent timing device as claimed in claim 8, wherein the processing unit is further connected to a pressure sensor disposed in the water inlet end of the water source and used for measuring the water pressure of the water inlet end of the water source, and when the current time is a sewage discharge time or when the pressure sensor detects that the water pressure of the water inlet end of the water source is changed from a loss of pressure to a normal water pressure, the processing unit controls the sewage discharge solenoid valve to open for a period of time, so that the water entering the water inlet end of the water source is directly delivered to the second drain outlet through the bottom drain outlet to be discharged.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921562650.XU CN211093437U (en) | 2019-09-19 | 2019-09-19 | Intelligent timing device for water dispenser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921562650.XU CN211093437U (en) | 2019-09-19 | 2019-09-19 | Intelligent timing device for water dispenser |
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| CN211093437U true CN211093437U (en) | 2020-07-28 |
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| CN201921562650.XU Active CN211093437U (en) | 2019-09-19 | 2019-09-19 | Intelligent timing device for water dispenser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115486706A (en) * | 2021-10-21 | 2022-12-20 | 青岛海尔施特劳斯水设备有限公司 | hot and cold water dispenser |
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2019
- 2019-09-19 CN CN201921562650.XU patent/CN211093437U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115486706A (en) * | 2021-10-21 | 2022-12-20 | 青岛海尔施特劳斯水设备有限公司 | hot and cold water dispenser |
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