CN107280476B - Pipeline overcurrent type direct drinking water dispenser without water tank - Google Patents
Pipeline overcurrent type direct drinking water dispenser without water tank Download PDFInfo
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- CN107280476B CN107280476B CN201710637875.6A CN201710637875A CN107280476B CN 107280476 B CN107280476 B CN 107280476B CN 201710637875 A CN201710637875 A CN 201710637875A CN 107280476 B CN107280476 B CN 107280476B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
- A47J31/462—Dispensing spouts, pumps, drain valves or like liquid transporting devices with an intermediate liquid storage tank
- A47J31/465—Dispensing spouts, pumps, drain valves or like liquid transporting devices with an intermediate liquid storage tank for the heated water
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/54—Water boiling vessels in beverage making machines
- A47J31/56—Water boiling vessels in beverage making machines having water-level controls; having temperature controls
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- Food Science & Technology (AREA)
- Devices For Dispensing Beverages (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a pipeline overflow type direct drinking water dispenser without a water tank, which comprises a first three-way joint, a water tap assembly and a hot liner assembly, wherein the first end of the first three-way joint is communicated with an incoming water end, the second end of the first three-way joint is communicated with a dewatering end, and the direct drinking water dispenser also comprises a one-way valve; the third end of the first three-way joint is communicated with the inlet of the water supply pipeline of the direct drinking water dispenser, the water inlet of the cold water faucet and the water inlet of the hot liner are both communicated with the outlet of the water supply pipeline of the direct drinking water dispenser, and the water outlet of the hot liner is communicated with the water inlet of the hot water faucet; the steam outlet of the heat container is communicated with the inlet of the one-way valve, and the outlet of the one-way valve is communicated with the outside. The invention solves the problems of secondary pollution, water quality aging, high labor consumption for cleaning and disinfecting, high consumption for cleaning and disinfecting agent and residual cleaning and disinfecting agent existing in the traditional direct drinking water dispenser, has large water yield, basically does not electrolyze a water level detector, and does not generate substances harmful to human bodies; the sanitation and safety of direct drinking water are ensured in all directions.
Description
Technical Field
The invention particularly relates to a pipeline overflow type direct drinking water dispenser without a water tank.
Background
In the prior art, the direct drinking water extension machine adopts a water tank water supply mode, and comprises a three-way joint, a water tank, a water tap assembly, a hot liner assembly and the like, wherein the first end and the second end of the three-way joint are the through ends, and the third end of the three-way joint is the bypass end. The first end of the three-way joint is communicated with the water inlet end of the direct drinking water supply and delivery pipe network, the second end of the three-way joint is communicated with the water outlet end of the direct drinking water supply pipe network, and the third end of the three-way joint is communicated with the water inlet of the water tank through an electromagnetic valve. The tap assembly comprises a cold water tap and a hot water tap, and the hot liner assembly comprises a hot liner for heating direct drinking water. The water outlet of the water tank is respectively communicated with the water inlet of the cold water tap and the water inlet of the hot liner, and the water outlet of the hot liner is communicated with the water inlet of the hot water tap.
The existing direct drinking water dispenser has the following disadvantages:
first, the use of a tank water supply mode has the following disadvantages:
1. the water stored in the water tank cannot be recycled to the direct drinking water supply and delivery pipe network and returned to the host machine for reactivation and disinfection, and the water is stored in the water tank for a long time, so that aging or ageing can occur to influence the water quality.
2. Because the water inlet and outlet of the water tank is required to adopt the siphon principle, corresponding amount of air in the installed environment can enter the water tank when water is taken every time, so that dust, microbial spores, pathogenic bacteria and the like in the air in the installed environment enter the water tank and are mixed into the water, and secondary pollution of direct drinking water can be caused.
3. The water tank and the water passing component are polluted for a long time, the water tank and the water passing component are required to be cleaned regularly, a large amount of labor and cleaning disinfectant are required to be consumed, and sterilizing disinfectant remains on the water tank and the water passing component during cleaning, so that the water quality is polluted, and the health is damaged.
4. The water tank supplies water, the water taking end of the direct drinking water dispenser utilizes the natural pressure siphon principle of the atmosphere to take water, and the water yield is low.
And the water inlet of the cold water tap is communicated with the water outlet of the water tank, and the water inlet of the hot liner is communicated with the water outlet of the water tank. The faucet assembly is provided with a water outlet nozzle in a structure, wherein the water outlet nozzle is cylindrical, one half of a water outlet of the cold water faucet and one half of a water outlet of the hot water faucet are communicated with the outside through the water outlet nozzle, and finally cold water and hot water flow out through the water outlet nozzle. Existing faucet assemblies have the following disadvantages:
1. the pipe diameter of the water outlet nozzle is larger, and the actually used water outlet of the cold water tap and the hot water tap is only half of the water outlet area of the water outlet nozzle, so that the water flow from the cold water tap and the hot water tap is smaller, the flow speed is slow, the water pressure is small, the effect of flushing the inner wall of the water outlet nozzle cannot be achieved, bacteria on the inner wall of the water outlet nozzle cannot be flushed, and the pollution of drinking water is caused. Meanwhile, the water outlet nozzle is integrally connected with the water tap assembly, so that the water tap assembly is inconvenient to clean.
2. Because the water inlet of the cold water tap and the water inlet of the hot liner are respectively and directly communicated with the water outlet of the water tank, if the cold water tap is not used for taking water for a long time, water in a pipeline between the water inlet of the cold water tap and the water outlet of the water tank can not flow for a long time, and the water quality is easy to age and bacteria are bred.
3. Because the water inlet of the hot liner is directly communicated with the water supply pipeline of the extension machine, water vapor in the hot liner is easy to continuously heat water in the water tank through the pipeline, so that the water entering the water inlet of the cold water tap is heated water, and the cold water taking effect is affected.
Third, the heat bladder assembly in the existing direct drinking extension has the following disadvantages:
1. in order to discharge the steam generated during heating of the heat liner to release pressure, the steam outlet of the heat liner is communicated with the water tank of the direct drinking water dispenser, and the steam is directly discharged into the water tank. Because the steam is directly discharged into the water tank, the direct drinking water cold water in the water tank can be heated, so that the taking effect of the direct drinking water cold water is affected.
2. In order to control the water level in the heat container, the heat container assembly is provided with a water level detector. The water level detector comprises a public electrode which is grounded, a water inlet electrode which is used for detecting whether the water level in the hot liner exceeds the water inlet level, and a full water electrode which is used for detecting whether the water level in the hot liner exceeds the full water level, wherein the water inlet electrode and the full water electrode are electrically connected with an A/D detection end of the controller. The water level detector continuously detects the water level in the heat container, and when the water level exceeds the water inlet level, the public electrode and the water inlet electrode are always connected into an electrolysis loop, so that electrolysis is continuously performed, and substances harmful to human bodies are generated.
3. The hot bladder can only provide hot water with higher temperature, and when water is intensively supplied to a kindergarten or a primary school, students are easy to scald.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the pipeline overflow type direct drinking water dispenser without a water tank, which solves the problems of secondary pollution, water quality aging, high cleaning and disinfection labor consumption, high cleaning and disinfection consumption and cleaning and disinfection residue existing in the traditional direct drinking water dispenser, has high water yield, and basically does not electrolyze a water level detector and does not generate substances harmful to human bodies; the sanitation and safety of direct drinking water are ensured in all directions, and the user experience is good.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a no pipeline overflow formula direct drinking water extension of water tank, includes first three way connection, tap subassembly and hot courage subassembly, tap subassembly includes cold water tap and hot water tap, hot courage subassembly includes the hot courage, and first three way connection's first end is used for being linked together with the water coming end of direct drinking water supply pipeline network, and first three way connection's second end is used for being linked together with the water removing end of direct drinking water supply pipeline network, and its structural feature is still including the check valve; the third end of the first three-way joint is communicated with the inlet of the water supply pipeline of the direct drinking water dispenser, the water inlet of the cold water faucet and the water inlet of the hot liner are both communicated with the outlet of the water supply pipeline of the direct drinking water dispenser, and the water outlet of the hot liner is communicated with the water inlet of the hot water faucet; the steam outlet of the heat container is communicated with the inlet of the one-way valve, and the outlet of the one-way valve is communicated with the outside.
By means of the structure, the one-way valve is arranged (the one-way valve only allows the steam in the heat liner to be discharged through the one-way valve, and does not allow external air to enter the heat liner), when the heat liner is heated, the pressure of the steam can open the one-way valve, and the steam is discharged through the one-way valve (can be discharged to a waste water box of the direct drinking water dispenser and the like); when the heat liner is not heated, the one-way valve is not under the pressure action and is in a closed state. Therefore, in the invention, the steam outlet of the hot liner is not required to be connected with the water tank, so that the direct-drinking cold water can not be heated, the taking effect of the direct-drinking cold water is not affected, and the water use experience is not affected.
The direct drinking water supply and delivery pipeline directly provides direct drinking water for the cold water tap and the hot liner through the first three-way joint and the direct drinking water extension water supply pipeline, so that water supply by the water tank is avoided. The direct drinking water supply and delivery pipe network provides direct drinking water for the direct drinking water extension machine, and does not influence the normal supply and delivery of the direct drinking water to other water taking points by the direct drinking water supply and delivery pipe network, and the direct drinking water extension machine is equivalent to a section of pipeline of the direct drinking water supply and delivery pipe network, so that the direct drinking water extension machine is called as pipeline overflow. The invention solves the problems of secondary pollution, water quality aging, high manual consumption of cleaning and disinfection, high consumption of cleaning and disinfectant and residual cleaning and disinfectant existing in the direct drinking water extension machine in the traditional water tank water supply mode because a water tank water supply mode is not adopted. Meanwhile, the water is not required to be taken through a water tank siphon principle when taken, and the water is directly taken through the water pressure of the water supply pipeline network, so that the water yield is large.
As a preferable mode, the first three-way joint is a mountain-shaped three-way joint, and the middle end of the mountain-shaped three-way joint is a third end of the first three-way joint.
By means of the structure, if the direct drinking water dispenser is not used for supplying water for a long time, the water in the third end of the first three-way joint can be brought into the direct drinking water supply and delivery pipeline network to participate in circulating flow even if the direct drinking water dispenser does not take water for a long time when the waterway in the direct drinking water supply and delivery pipeline network flows.
Further, the faucet assembly further comprises a funnel-shaped water outlet nozzle, a closed cavity is formed between the upper part of the funnel-shaped water outlet nozzle and the cold water faucet and between the upper part of the funnel-shaped water outlet nozzle and the hot water faucet, water outlets of the cold water faucet and the hot water faucet are communicated with the cavity, and the cavity is communicated with the outside through a water outlet through pipe at the lower part of the funnel-shaped water outlet nozzle.
By means of the structure, all calibers of the water outlets of the cold water faucet are located in the cavity, and all calibers of the water outlets of the hot water faucet are located in the cavity, so that water flow from the cold water faucet and the hot water faucet is large, flow velocity is high, water pressure is high, cold water and hot water form vortex and alternately wash away each other, the inner wall of the water outlet nozzle can be washed away, bacteria on the inner wall of the water outlet nozzle can be washed away, meanwhile, hot water can also disinfect the inner part of the water outlet nozzle at high temperature, and bacteria growth and propagation are prevented.
Further, the water dispenser further comprises a second three-way joint, the first end and the second end of the second three-way joint are straight ends, the third end of the second three-way joint is a bypass end, the first end of the second three-way joint is connected with the outlet of the water supply pipeline of the direct drinking water dispenser, the second end of the second three-way joint is connected with the water inlet of the cold water faucet, and the third end of the second three-way joint is connected with the water inlet of the hot liner.
By means of the structure, even if the cold water tap is not used for taking water for a long time, when the water is received, the water in the water supply pipeline of the extension is communicated with the first end of the second three-way joint, and flows into the hot liner through the first end and the third end of the second three-way joint; meanwhile, as the first end and the second end of the second three-way joint are straight ends, the impact force of water flow in the water supply pipeline of the extension can take away the water at the second end of the second three-way joint and the water inlet of the cold water tap through the third end of the second three-way joint and supplement the water timely, thereby avoiding the aging of water quality in the pipeline between the water supply pipeline of the extension and the water inlet of the cold water tap and preventing bacteria from breeding.
Further, an inflatable and contractible air bag is connected between the steam outlet of the thermal liner and the inlet of the one-way valve.
By means of the structure, due to the arrangement of the inflatable and contractible air bags, when the hot liner is heated, water vapor firstly enters the air bags through the vapor outlets, and at the moment, the air bags are inflated, and when the vapor quantity is too large, the water vapor is discharged through the one-way valves; when the hot bladder is not heated, the water vapor is liquefied into water and stored in the air bag, and the air bag is contracted at the moment. This avoids excessive water vapor being discharged.
Further, the water level detector comprises a public electrode grounded, a water inlet electrode used for detecting whether the water level in the hot liner exceeds the water inlet level, and a full water electrode used for detecting whether the water level in the hot liner exceeds the full water level; the water inlet electrode is electrically connected with a water inlet detection end of the controller through a first voltage dividing resistor, the water filling electrode is electrically connected with a water filling detection end of the controller through a second voltage dividing resistor, and the water inlet detection end and the water filling detection end are both I/O ports and A/D detection port multiplexing ends capable of being switched in a pulse mode; the first voltage dividing resistor is electrically connected with the water inlet detection end, and the second voltage dividing resistor is electrically connected with the positive electrode of the power supply; the controller is electrically connected with the control end of the water inlet electromagnetic valve through the water inlet electromagnetic valve driving circuit.
The water inlet detection end and the full water detection end of the controller are I/O ports in a normal state, and the water inlet detection end and the full water detection end of the controller are A/D detection ports when the water level is detected by pulses. Under normal state, the water inlet detection end and the full water detection end are input into the controller in a current filling mode, the voltages on the water inlet electrode and the full water electrode are zero volts, and water cannot be electrolyzed. By detecting the water level by means of pulses, the detection time is very short, and thus the electrolysis time is very short, the influence of which is essentially negligible. Therefore, when the water level exceeds the water inlet level, the common electrode and the water inlet electrode are always connected into an electrolysis loop for continuous electrolysis, and substances harmful to human bodies are avoided from being generated by electrolysis. When the controller detects that the water level in the hot liner is lower than the water inlet level, the controller drives the water inlet electromagnetic valve to open through the water inlet electromagnetic valve driving circuit, and direct drinking water enters the hot liner; when the controller detects that the water level in the hot liner is higher than the full water level, the controller enables the water inlet electromagnetic valve to be closed through the water inlet electromagnetic valve driving circuit, and direct drinking water cannot enter the hot liner.
Further, a first normally open type reed pipe is arranged in the cold water tap, and a first magnet matched with the first normally open type reed pipe is arranged on a cold water control handle of the cold water tap; the first contact of the first normally open type reed switch is grounded, the second contact of the first normally open type reed switch is electrically connected with the controller, and the output end of the controller is electrically connected with the control end of a water inlet electromagnetic valve connected to a water supply pipeline of the direct drinking water extension machine through a water inlet electromagnetic valve driving circuit; when the cold water is connected, the cold water control handle drives the first magnet to move and enables the first normally open reed switch to be located in the magnetic field range of the first magnet.
Further, a second normally open type reed pipe is arranged in the hot water faucet, and a second magnet matched with the second normally open type reed pipe is arranged on a hot water control handle of the hot water faucet; the first contact of the second normally open type reed switch is grounded, the second contact of the second normally open type reed switch is electrically connected with the controller, and the output end of the controller is electrically connected with the control end of a water inlet electromagnetic valve connected to a water supply pipeline of the direct drinking water extension machine through a water inlet electromagnetic valve driving circuit; when the hot water is received, the hot water control handle drives the second magnet to move and enables the second normally open reed switch to be located in the magnetic field range of the second magnet.
By the structure, the water inlet electromagnetic valve is in a closed state in a normal state. When cold water is required to be taken, the cold water control handle drives the first magnet to move and enables the first normally open reed pipe to be located in the magnetic field range of the first magnet, at the moment, the first contact and the second contact of the first normally open reed pipe are communicated, after the controller detects the state, the water inlet electromagnetic valve is driven to be opened through the water inlet electromagnetic valve driving circuit, and water in the water supply pipeline of the extension machine flows out through the cold water tap. The hot water intake process is similar to the cold water intake process. When water is not taken, the water inlet electromagnetic valve is in a closed state, so that water in the water supply pipeline of the split machine can be prevented from being heated by water vapor in the heat container, and the taking effect of cold water is prevented from being influenced.
Further, a temperature sensor and a heating element are arranged in the heat container, the temperature sensor is electrically connected with the input end of the controller through an A/D converter, and the output end of the controller is electrically connected with the heating element through a heating element driving circuit.
By means of the structure, the controller is internally provided with a proper water supply temperature of the hot liner in advance. When the heating element works, water in the heating element is heated, meanwhile, the temperature sensor detects the water temperature in the heating element and sends the water temperature to the controller, the controller compares the detected water temperature of the heating element with the set water supply temperature of the heating element, and when the detected water temperature of the heating element reaches the water supply temperature of the heating element, the controller controls the heating element to stop working through the driving circuit of the heating element.
Further, the third end of the first three-way joint is connected with a water supply pipeline of the direct drinking water extension machine through an extension main valve, and the extension main valve can switch water and adjust the water quantity.
Compared with the prior art, the invention avoids water supply by adopting the water tank, solves the problems of secondary pollution, water quality aging, high cleaning and disinfection labor consumption, high cleaning and disinfection consumption and cleaning and disinfection residue existing in the traditional direct drinking water extension machine, has high water yield, and basically does not electrolyze the water level detector and does not generate substances harmful to human bodies; the sanitation and safety of direct drinking water are ensured in all directions, and the user experience is good.
Drawings
Fig. 1 is an external view of an embodiment of the present invention.
Fig. 2 is a schematic view of the structure of fig. 1 with the front panel removed.
Fig. 3 is a schematic structural view of the product shown in fig. 2 in a separated state.
FIG. 4 is a schematic view of the faucet assembly of FIG. 2.
FIG. 5 is a schematic view of the faucet assembly of FIG. 4.
FIG. 6 is a schematic view of the bladder assembly of FIG. 2.
Fig. 7 is a schematic circuit diagram of a first embodiment of the present invention.
Fig. 8 is an overall workflow diagram of the present invention.
Fig. 9 is a schematic structural view of a second embodiment of a faucet assembly.
Fig. 10 is a schematic circuit diagram of a second embodiment of the present invention.
Wherein 9 is a tap assembly, 901 is a cold water tap, 9011 is a cold water control handle, 902 is a hot water tap, 9021 is a hot water control handle, 903 is a second three-way joint, 904 is a first normally open type reed pipe, 905 is a first magnet, 906 is a water inlet electromagnetic valve driving circuit, 907 is a water inlet electromagnetic valve, 908 is a second normally open type reed pipe, 909 is a second magnet, 910 is a first self-resetting travel switch, 911 is a second self-resetting travel switch, 912 is a funnel-shaped water outlet nozzle, 9121 is a cavity, 9122 is a water outlet pipe, 10 is a controller, 11 is a hot liner assembly, 1101 is a heat liner, 1102 is an air bag, 1103 is a hard tube, 1104 is a water level detector, 11041 is a water inlet electrode, 11042 is a full water electrode, 11043 is a common electrode, 1105 is a temperature sensor, 1106 is a heating element, 1107 is an A/D converter, 1108 is a heating element driving circuit, 1109 is a first voltage dividing resistor, 1110 is a second voltage dividing resistor, 1111 is a one-way valve, 1201 is a first three-way joint, 1202 is a sub main valve, 1203 is a waste water box, 1204 is a sub housing, 1205 is a front panel, 1206 is a water leakage protection sheet, 1207 is a water leakage protection sensing circuit.
Detailed Description
As shown in fig. 1 to 8, an embodiment of the present invention includes a first three-way joint 1201, a faucet assembly 9 and a hot water tank assembly 11, the faucet assembly 9 includes a cold water faucet 901 and a hot water faucet 902, the hot water tank assembly 11 includes a hot water tank 1101, a first end of the first three-way joint 1201 is used for communicating with an incoming water end of a direct drinking water supply and delivery pipe network, a second end of the first three-way joint 1201 is used for communicating with a water removal end of the direct drinking water supply and delivery pipe network, and a one-way valve 1111 is further included; the third end of the first three-way joint 1201 is communicated with the inlet of the water supply pipeline of the direct drinking water dispenser, the water inlet of the cold water faucet 901 and the water inlet of the hot liner 1101 are both communicated with the outlet of the water supply pipeline of the direct drinking water dispenser, and the water outlet of the hot liner 1101 is communicated with the water inlet of the hot water faucet 902; the steam outlet of the heat container 1101 is communicated with the inlet of the check valve 1111, and the outlet of the check valve 1111 is communicated with the outside. The heat bladder 1101 is wrapped with a thermal insulation material.
The first three-way joint 1201 is a tee joint in the shape of a Chinese character 'shan', and the middle end of the tee joint is the third end of the first three-way joint 1201.
The faucet assembly 9 further comprises a funnel-shaped water outlet 912, a closed cavity 9121 is defined between the upper part of the funnel-shaped water outlet 912 and the cold water faucet 901 and the hot water faucet 902, water outlets of the cold water faucet 901 and the hot water faucet 902 are communicated with the cavity 9121, and the cavity 9121 is communicated with the outside through a water outlet pipe 9122 at the lower part of the funnel-shaped water outlet 912.
The water outlets of the cold water tap 901 and the hot water tap 902 are round holes, the cross section of the water outlet through pipe 9122 is round, and the structure is beneficial to production and assembly.
The cold water tap 901 and the hot water tap 902 are detachably connected with the funnel-shaped water outlet 912, so that the disassembly and the assembly are convenient.
The invention further comprises a second three-way joint 903, wherein the first end and the second end of the second three-way joint 903 are straight ends, the third end of the second three-way joint 903 is a bypass end, the first end of the second three-way joint 903 is connected with the outlet of a water supply pipeline of the direct drinking water extension machine, the second end of the second three-way joint 903 is connected with a water inlet of the cold water tap 901, and the third end of the second three-way joint 903 is connected with the water inlet of the hot liner 1101.
The second end of the second three-way connector 903 is 0 to 5cm in length. Through experiments, the second end of the second three-way connector 903 is too long, which is not beneficial to driving water to flow; the second end of the second three-way connector 903 is too short, which is not beneficial to production and disassembly, and the second end of the second three-way connector 903 is 0-5 cm in length.
The first end of the second three-way connector 903 is used for being detachably connected with the outlet of the water supply pipeline of the direct drinking water dispenser, the second end of the second three-way connector 903 is fixedly connected with the water inlet of the cold water faucet 901, and the third end of the second three-way connector 903 is used for being detachably connected with the water inlet of the hot liner.
An inflatable and deflatable balloon 1102 is also connected between the steam outlet of the heat bladder 1101 and the inlet of the one-way valve 1111.
The air bag 1102 is made of silica gel, and the air bag 1102 is connected with a steam outlet of the hot bladder 1101 through a hard pipe 1103; the air bag 1102 and the hard tube 1103 are vertically arranged above the heat bladder 1101. Because the balloon 1102 is made of silica gel, it has a certain hardness and deformability. The air bag 1102 and the hard tube 1103 are vertically arranged above the hot bladder 1101, so that liquid water in the air bag 1102 can be conveniently returned to the hot bladder 1101 for recycling.
The invention also comprises a water level detector 1104 and a water inlet electromagnetic valve 907 arranged on a water supply pipeline of the direct drinking water extension machine, wherein the water level detector 1104 comprises a grounded public electrode 11043, a water inlet electrode 11041 for detecting whether the water level in the heat container 1101 exceeds the water inlet level, and a full water electrode 11042 for detecting whether the water level in the heat container 1101 exceeds the full water level; the water inlet electrode 11041 is electrically connected with a water inlet detection end of the controller 10 through a first voltage dividing resistor 1109, the full water electrode 11042 is electrically connected with a full water detection end of the controller 10 through a second voltage dividing resistor 1110, and the water inlet detection end and the full water detection end are both I/O ports and A/D detection port multiplexing ends which can be switched in a pulse mode; the first voltage dividing resistor 1109 is electrically connected with the positive electrode of the power supply, and the second voltage dividing resistor 1110 is electrically connected with the full water detection end; the controller 10 is electrically connected to a control terminal of the water inlet solenoid valve 907 through the water inlet solenoid valve driving circuit 906. The terminals of the common electrode 11043, the water inlet electrode 11041 and the full water electrode 11042 are all fixed on the hard tube 1103.
The controller 10 is an STC12C5404AD chip and peripheral circuits thereof.
A first normally open reed pipe 904 is arranged in the cold water faucet 901, and a first magnet 905 matched with the first normally open reed pipe 904 is arranged on a cold water control handle 9011 of the cold water faucet 901; the first contact of the first normally open reed switch 904 is grounded, the second contact of the first normally open reed switch 904 is electrically connected with the controller 10, and the output end of the controller 10 is electrically connected with the control end of a water inlet electromagnetic valve 907 connected to the water supply pipeline of the direct drinking water extension machine through a water inlet electromagnetic valve driving circuit 906; when receiving cold water, the cold water control handle 9011 drives the first magnet 905 to move and enables the first normally open reed switch 904 to be located in the magnetic field range of the first magnet 905.
A second normally open reed switch 908 is arranged in the hot water faucet 902, and a second magnet 909 matched with the second normally open reed switch 908 is arranged on a hot water control handle 9021 of the hot water faucet 902; the first contact of the second normally open reed switch 908 is grounded, the second contact of the second normally open reed switch 908 is electrically connected with the controller 10, and the output end of the controller 10 is electrically connected with the control end of a water inlet electromagnetic valve 907 connected to the water supply pipeline of the direct drinking water extension machine through a water inlet electromagnetic valve driving circuit 906; when receiving hot water, the hot water control handle 9021 drives the second magnet 909 to move and enables the second normally open reed switch 908 to be located within the magnetic field of the second magnet 909.
A temperature sensor 1105 and a heating element 1106 are arranged in the heat container 1101, the temperature sensor 1105 is electrically connected with the input end of the controller 10 through an a/D converter 1107, and the output end of the controller 10 is electrically connected with the heating element 1106 through a heating element driving circuit 1108.
The temperature sensor 1105 is a temperature sensitive resistor. The heating element 1106 is a heating wire.
The third end of the first three-way joint 1201 is connected to the water supply line of the drinking water extension by means of the extension master valve 1202.
The components of the present invention are mounted within an extension housing 1204, the extension housing 1204 having a removable front panel 1205, the outlet of the one-way valve 1111 being in communication with a waste water box 1203 on the front panel 1205. The adjustment handle of the extension valve 1202 extends from the side panel of the extension housing 1204. The faucet assembly 9 is exposed through the front panel 1205. The bottom surface of the water leakage protection sheet 1206 is insulated from the extension housing 1204.
A water leakage protection sheet 1206 is also arranged in the bottom of the extension housing 1204, and the water leakage protection sheet 1206 is electrically connected with the controller 10 through a water leakage protection sensing circuit 1207.
In the present invention, the water level detection logic in the heat bladder 1101 is as follows:
1. when the direct drinking water dispenser is electrified, the direct drinking water dispenser is firstly in a standby state, at this time, a full water detection end and a water inlet detection end which are connected with a full water electrode 11042 and a water inlet electrode 11041 of the controller 10 are both in a common I/O port input mode, the full water detection end and the water inlet detection end are input into the controller 10 in a current filling mode, the voltages on the full water electrode 11042 and the water inlet electrode 11041 are zero volts, and in fact, the hot liner 1101 is free of water or lower than the water inlet level at this time, and no ionized water is generated.
2. When the direct drinking water dispenser is started up by pressing each time, water exists or is not available, a full water detection end and a water inlet detection end which are connected to the full water electrode 11042 and the water inlet electrode 11041 of the controller 10 are converted into an A/D detection input state from a common I/O port input state, and at the moment, voltages on the full water electrode 11042 and the water inlet electrode 11041 are different due to different resistance values: (1) if water is sensed between the full water electrode 11042 or the water inlet electrode 11041 and the common electrode 11043, the voltage of the full water detection end and the water inlet detection end is about 2-3 v (the water quality is different, the heating wire is different, the voltage is changed), the heat liner 1101 does not need to be in water, the operation is only needed once, and the detection is stopped once within 0.05 seconds; (2) if no water is sensed between the full water electrode 11042 or the water inlet electrode 11041 and the common electrode 11043, the voltage of the full water detection end and the water inlet detection end is about 5V, at this time, the water inlet electromagnetic valve 907 is opened to feed water, at this time, a pulse detection signal is generated once for 5 seconds, and the time length of each detection is 0.05 seconds. Since the water inlet and outlet are performed simultaneously, the electrode of the water level detector 1104 is immersed in the water, but the water flows, and the water with the contact electrode is not electrolyzed, so that the problem of electrolysis is negligible.
If no hot water taking operation is performed by the direct drinking water dispenser in daily work, the water level detector 1104 does not detect the hot water taking operation, and the detection mode of the water level detector 1104 is consistent with the 2- (2) mode.
3. The direct drinking water dispenser presses the heating button switch or automatically starts heating each time, the controller 10 changes the full water detection end and the water inlet detection end from the common I/O port input form to the A/D detection input form, detects whether the hot liner 1101 needs water inlet or not, namely whether the water level is lower than the water inlet level or not, and only performs detection once when the heating button switch is pressed for each time and the heating action is automatically started, and the time is 0.05 seconds each time. The normally closed detection method for detecting the water level only by starting the related functionality greatly reduces the frequency and time of water level detection, is particularly suitable for detecting the liquid level of the liquid which is easy to electrolyze, so as to avoid the liquid electrolysis of the detected liquid level and influence the quality of the liquid, and is particularly suitable for detecting the liquid level in a working mode of sending a liquid taking signal and opening a liquid outlet valve through a wired or wireless signal.
In the present invention, the flow of water level control of the heat bladder 1101 is as follows:
when the direct drinking water dispenser is powered on and started, the water level detector 1104 automatically detects whether water exists in the heat container 1101 and the state of the water level, and judges whether the heat container 1101 automatically feeds water or not, and the situations are as follows:
1. when the direct drinking water dispenser is started to work and no water exists in the hot liner 1101, the water inlet electromagnetic valve 907 is triggered to be opened automatically, and the hot liner 1101 is fed with water automatically.
2. When the direct drinking water dispenser is started to work and the water level detector 1104 detects that water exists in the hot liner 1101, but the water level does not reach the water level of the water inlet electrode 11041, the water inlet electromagnetic valve 907 is triggered to be opened, and water is fed into the hot liner 1101; when the water level reaches the full water level of the water electrode 11042, the water inlet solenoid valve 907 is closed to stop water inlet.
3. When the direct drinking water dispenser is started to work and the water level detector 1104 detects that water exists in the heat container 1101, the water inlet electromagnetic valve 907 is not opened and the heat container 1101 is not filled with water when the water level reaches the water level of the water inlet electrode 11041 and does not exceed the water level of the full water electrode 11042.
4. When the direct drinking water dispenser is started to work and the water level detector 1104 detects that water exists in the heat container 1101, the water inlet electromagnetic valve 907 is not opened and the heat container 1101 is not filled with water when the water level reaches the water level of the full water electrode 11042.
5. When the direct drinking water dispenser is started to work and the water level detector 1104 detects that water exists in the heat container 1101, the water level reaches the water level of the full water electrode 11042, and the water leakage protection sheet 1206 does not detect water leakage, the water inlet electromagnetic valve 907 is not opened, and the heat container 1101 does not feed water.
6. When the direct drinking water dispenser is started to work and the water level detector 1104 detects that water exists in the heat container 1101, the controller 10 reports a fault to perform automatic protection state treatment when the water leakage protection sheet 1206 detects water leakage, and all the works are stopped; if water is taken from the hot tap 902, the following situations will occur after the restart.
(1) The direct drinking water extension machine can work normally;
(2) the direct drinking water extension machine cannot work normally, and is automatically protected, so that the fault cause needs to be found;
(3) when water is taken in for a while, whether the water level changes or not is checked
a. If the water leakage protection sheet 1206 detects water leakage, the direct drinking water dispenser is automatically protected, and the fault cause needs to be found.
b. If the water leakage protection sheet 1206 does not detect water leakage, the direct drinking water dispenser can recover to a normal working state.
7. Pressing the water outlet button of the hot water tap 902 opens the water inlet solenoid valve 907 (except that the water dispenser is in a fault automatic protection state).
As shown in fig. 8, the overall working principle of the present invention is as follows:
1. the direct drinking water dispenser is ready before working, and the circuit and the waterway are ready.
2. The power socket is plugged in, the direct drinking water dispenser is in a standby state, and at the moment, the power indicator light is red.
3. When the power key is pressed, the direct drinking water dispenser is in a starting working state, and at the moment, the power indicator light is green. The power button is pressed again, and the direct drinking water extension machine is in a standby working state, and at the moment, the power indicator light is red.
4. Automatic water inlet function: when the direct drinking water dispenser is in a starting working state, the water level detector 1104 detects that no water exists in the heat container 1101 (pulse voltage detection), the water inlet electromagnetic valve 907 is opened, the heat container 1101 is filled with water, and when the water level of the full water electrode 11042 is reached, the water inlet electromagnetic valve 907 is automatically closed.
5. When the water outlet key of the cold water tap 901 or the hot water tap 902 of the direct drinking machine is pressed, the water inlet electromagnetic valve 907 is opened, and the direct drinking machine supplies cold or hot drinking water.
6. After the heat container 1101 is fully filled with water, and when the water level reaches the water level of the water inlet electrode 11041, the direct drinking water dispenser automatically heats the water in the heat container 1101 once at 95 ℃, and then the water is heated once at 95 ℃ every 24 hours, so that the circulation is realized.
7. Heating-heat preservation function: when the water temperature in the hot liner 1101 of the direct drinking water dispenser reaches 95 ℃, the direct drinking water dispenser closes the function of heating water, and is in a heat preservation state, and the heating water indicator lamp is green; when the water temperature is cooled to 80 ℃, the direct drinking water dispenser restarts the function of heating water, and the heating water indicator lamp shows red. (the water temperature is 95 ℃, 65 ℃ and 40 ℃ according to actual requirements of a concrete installation).
8. Sleep function: after the direct drinking water dispenser heats water and keeps warm, no one uses high-temperature water, the direct drinking water dispenser can be in a dormant state after 70 minutes, at the moment, the heating water indicator lamp can continuously flash, the heating water function can stop, other functions are still normal, and the water can be heated again only by pressing the heating key again.
9. And (3) water shortage protection: when the hot liner 1101 of the direct drinking water dispenser is filled with water, if the water level of the hot liner 1101 does not reach the water inlet water level line within 8 minutes, the controller 10 judges that the water is lack of water for protection, and the water lack indicator lamp flashes to display red, so that the direct drinking water dispenser can work only by resetting again.
10. And (3) water leakage protection: when the direct drinking water dispenser is in the states of starting, water inflow, heating and the like, such as when the water leakage protection sheet 1206 is short-circuited by water, the direct drinking water dispenser may have the water leakage phenomenon, at the moment, the direct drinking water dispenser immediately changes into the water leakage protection state, the water inflow indication (red light) is displayed in a flashing manner, the power supply indication (green light is on), and various functional operations are disabled. Only when the water drops on the water leakage protection sheet are wiped off, the direct drinking water extension machine can be restored to the normal working state.
As shown in fig. 9 and 10, another embodiment of the present invention is repeated as the first embodiment, wherein a first self-resetting travel switch 910 is provided on a cold water tap 901, a first contact of the first self-resetting travel switch 910 is grounded, a second contact of the first self-resetting travel switch 910 is electrically connected with a controller 10, and an output end of the controller 10 is electrically connected with a control end of a water inlet electromagnetic valve 907 connected to a water supply pipeline of the direct drinking extension through a water inlet electromagnetic valve driving circuit 906; when cold water is received, the cold water control handle 9011 drives the control lever of the first self-resetting travel switch 910 to switch on the first contact and the second contact of the first self-resetting travel switch 910.
The hot water tap 902 is provided with a second self-resetting travel switch 911, a first contact of the second self-resetting travel switch 911 is grounded, a second contact of the second self-resetting travel switch 911 is electrically connected with the controller 10, and an output end of the controller 10 is electrically connected with a control end of a water inlet electromagnetic valve 907 connected to a water supply pipeline of the direct drinking water extension machine through a water inlet electromagnetic valve driving circuit 906; when receiving hot water, the hot water control handle 9021 drives the control lever of the second self-resetting travel switch 911 to switch on the first contact and the second contact of the second self-resetting travel switch 911.
The self-resetting travel switch is similar to the taking and working principle of controlling the cooling and heating water by using a normally open type dry reed pipe. The water inlet solenoid valve 907 is normally in a closed state. When cold water is required to be taken, the cold water control handle 9011 drives the control rod of the first self-resetting travel switch 910 to be connected with the first contact and the second contact of the first self-resetting travel switch 910, and after the controller 10 detects the state, the water inlet electromagnetic valve 907 is driven to be opened through the water inlet electromagnetic valve driving circuit 906, and water in the water supply pipeline of the direct drinking water dispenser flows out through the cold water faucet 901. The hot water intake process is similar to the cold water intake process. When water is not taken, the water inlet electromagnetic valve 907 is in a closed state, so that water in the water supply pipeline of the direct drinking water dispenser can be prevented from being heated by water vapor in the heat container 1101, and the cold water taking effect is prevented from being influenced.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are all within the scope of the present invention.
Claims (7)
1. The utility model provides a no pipeline overflow formula direct drinking water extension of water tank, includes first three way connection (1201), tap subassembly (9) and heat courage subassembly (11), tap subassembly (9) include cold water tap (901) and hot water tap (902), heat courage subassembly (11) include heat courage (1101), and the first end of first three way connection (1201) is used for being linked together with the incoming water end of direct drinking water supply pipeline network, and the second end of first three way connection (1201) is used for being linked together with the water end of direct drinking water supply pipeline network, and characterized in that still includes check valve (1111); the third end of the first three-way joint (1201) is communicated with the inlet of a water supply pipeline of the direct drinking water dispenser, the water inlet of the cold water faucet (901) and the water inlet of the hot liner (1101) are both communicated with the outlet of the water supply pipeline of the direct drinking water dispenser, and the water outlet of the hot liner (1101) is communicated with the water inlet of the hot water faucet (902); the steam outlet of the heat container (1101) is communicated with the inlet of the one-way valve (1111), and the outlet of the one-way valve (1111) is communicated with the outside; the first tee joint (1201) is a tee joint with a Chinese character 'shan', and the middle end of the tee joint is a third end of the first tee joint (1201);
the water dispenser further comprises a second three-way joint (903), wherein the first end and the second end of the second three-way joint (903) are straight ends, the third end of the second three-way joint (903) is a bypass end, the first end of the second three-way joint (903) is connected with a water supply pipeline outlet of the direct drinking water dispenser, the second end of the second three-way joint (903) is connected with a water inlet of a cold water faucet (901), and the third end of the second three-way joint (903) is connected with a water inlet of a hot liner (1101);
an inflatable and contractible air bag (1102) is also connected between the steam outlet of the heat container (1101) and the inlet of the one-way valve (1111);
when the hot liner is heated, water vapor firstly enters the air bag through the vapor outlet, the air bag expands at the moment, and the water vapor is discharged through the one-way valve when the vapor quantity is too large; when the hot liner is not heated, the water vapor is liquefied into water to be stored in the air bag, the air bag is contracted at the moment, and the liquid water in the air bag (102) returns to the hot liner (1101) for recycling.
2. The water tank-free pipe overflow type direct drinking water dispenser according to claim 1, wherein the water tap assembly (9) further comprises a funnel-shaped water outlet nozzle (912), a closed cavity (9121) is formed between the upper part of the funnel-shaped water outlet nozzle (912) and the cold water tap (901) and the hot water tap (902), water outlets of the cold water tap (901) and the hot water tap (902) are communicated with the cavity (9121), and the cavity (9121) is communicated with the outside through a water outlet pipe (9122) at the lower part of the funnel-shaped water outlet nozzle (912).
3. The water tank-free pipe overflow type direct drinking water dispenser according to claim 1, further comprising a water level detector (1104) and a water inlet electromagnetic valve (907) arranged on a water supply pipeline of the direct drinking water dispenser, wherein the water level detector (1104) comprises a common electrode (11043) grounded, a water inlet electrode (11041) for detecting whether the water level in the heat container (1101) exceeds the water inlet level, and a full water electrode (11042) for detecting whether the water level in the heat container (1101) exceeds the full water level; the water inlet electrode (11041) is electrically connected with a water inlet detection end of the controller (10) through a first voltage dividing resistor (1109), the full water electrode (11042) is electrically connected with a full water detection end of the controller (10) through a second voltage dividing resistor (1110), and the water inlet detection end and the full water detection end are both pulse-switchable I/O (input/output) port and A/D (input/output) detection port multiplexing ends; the first voltage dividing resistor (1109) and the water inlet detection end, and the second voltage dividing resistor (1110) and the water full detection end are electrically connected with the positive electrode of the power supply; the controller (10) is electrically connected with the control end of the water inlet electromagnetic valve (907) through the water inlet electromagnetic valve driving circuit (906).
4. The water tank-free pipe overflow type direct drinking extension machine according to claim 1, characterized in that a first normally open type reed pipe (904) is arranged in the cold water tap (901), and a first magnet (905) which is mutually matched with the first normally open type reed pipe (904) is arranged on a cold water control handle (9011) of the cold water tap (901); the first contact of the first normally open reed pipe (904) is grounded, the second contact of the first normally open reed pipe (904) is electrically connected with the controller (10), and the output end of the controller (10) is electrically connected with the control end of a water inlet electromagnetic valve (907) connected to a water supply pipeline of the direct drinking water extension machine through a water inlet electromagnetic valve driving circuit (906); when cold water is connected, the cold water control handle (9011) drives the first magnet (905) to move, and the first normally open reed switch (904) is located in the magnetic field range of the first magnet (905).
5. The water tank-free pipe overflow type direct drinking extension machine according to claim 1, characterized in that a second normally open reed pipe (908) is arranged in the hot water faucet (902), and a second magnet (909) which is mutually matched with the second normally open reed pipe (908) is arranged on a hot water control handle (9021) of the hot water faucet (902); the first contact of the second normally open reed pipe (908) is grounded, the second contact of the second normally open reed pipe (908) is electrically connected with the controller (10), and the output end of the controller (10) is electrically connected with the control end of a water inlet electromagnetic valve (907) connected to a water supply pipeline of the direct drinking extension through a water inlet electromagnetic valve driving circuit (906); when hot water is received, the hot water control handle (9021) drives the second magnet (909) to move and enables the second normally open reed switch (908) to be located in the magnetic field range of the second magnet (909).
6. The water tank-free pipe overflow type direct drinking water dispenser according to claim 1, characterized in that a temperature sensor (1105) and a heating element (1106) are arranged in the heat container (1101), the temperature sensor (1105) is electrically connected with the input end of the controller (10) through an A/D converter (1107), and the output end of the controller (10) is electrically connected with the heating element (1106) through a heating element driving circuit (1108).
7. The water tank-less pipe overflow type direct drinking water dispenser according to claim 1, characterized in that the third end of the first three-way joint (1201) is connected with the direct drinking water dispenser water supply pipe through a dispenser master valve (1202).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637875.6A CN107280476B (en) | 2017-07-31 | 2017-07-31 | Pipeline overcurrent type direct drinking water dispenser without water tank |
| PCT/CN2018/097503 WO2019024796A1 (en) | 2017-07-31 | 2018-07-27 | Pipe flow-through direct drinking water extension machine without water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710637875.6A CN107280476B (en) | 2017-07-31 | 2017-07-31 | Pipeline overcurrent type direct drinking water dispenser without water tank |
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| CN107280476A CN107280476A (en) | 2017-10-24 |
| CN107280476B true CN107280476B (en) | 2023-06-23 |
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| CN201710637875.6A Active CN107280476B (en) | 2017-07-31 | 2017-07-31 | Pipeline overcurrent type direct drinking water dispenser without water tank |
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| WO (1) | WO2019024796A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107280476B (en) * | 2017-07-31 | 2023-06-23 | 湖南长翔实业有限公司 | Pipeline overcurrent type direct drinking water dispenser without water tank |
| CN108458838B (en) * | 2018-05-22 | 2024-03-29 | 山东和富工程检测有限公司 | Automatic reliability test device for fire-fighting electromagnetic valve |
| CN113995311A (en) * | 2020-07-28 | 2022-02-01 | 佛山市顺德区美的饮水机制造有限公司 | Waterway assembly for drinking equipment and drinking equipment |
| CN114863608B (en) * | 2021-02-04 | 2024-03-26 | 惠州碧海源科技有限公司 | Full-automatic intelligent water vending machine |
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| WO2019024796A1 (en) | 2019-02-07 |
| CN107280476A (en) | 2017-10-24 |
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