CN107752766A - A kind of Drinking fountain - Google Patents
A kind of Drinking fountain Download PDFInfo
- Publication number
- CN107752766A CN107752766A CN201711178825.2A CN201711178825A CN107752766A CN 107752766 A CN107752766 A CN 107752766A CN 201711178825 A CN201711178825 A CN 201711178825A CN 107752766 A CN107752766 A CN 107752766A
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- CN
- China
- Prior art keywords
- water
- water tank
- drinking
- tank
- control circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
-
- 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
- A47J31/4403—Constructional details
-
- 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
-
- 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
-
- 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
- A47J31/60—Cleaning devices
-
- 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
- A47J31/60—Cleaning devices
- A47J31/605—Water filters
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Water Treatment By Sorption (AREA)
- Apparatus For Making Beverages (AREA)
- Devices For Dispensing Beverages (AREA)
Abstract
The invention discloses a kind of Drinking fountain, including cabinet and the water tank, heating water tank, filter, water pump and the total control circuit plate that are installed on the cabinet inside；It is of the invention that heating of the control realization of water solenoid valve etc. to drinking water needed for user to boiling water water solenoid valve, cold water water solenoid valve, scouring electromagnetic valve and is added by water, water temperature and the total control circuit plate that runoff investigation knob, Water Temperature-Adjusting rotary knob setting need to heat, the heating repeatedly unnecessary to drinking water is avoided, reaches the purpose of energy-conservation；In addition, the filter of the present invention can realize self-cleaning effect by the opening and closing of scouring electromagnetic valve.
Description
Technical field
The invention belongs to field of household appliances, more particularly to a kind of Drinking fountain.
Background technology
Water dispenser is the widely used home appliance of daily life or office space, however, traditional water dispenser is present
Following problem：First, drinking water is heated repeatedly, existing tradition drinking-water acc power is between 500W-2000W, but it is incubated
System imperfection, in order to keep the temperature of heater box reclaimed water, under water dispenser idle state, water can also be heated repeatedly,
Energy consumption is caused to increase；Second, traditional water dispenser, when hot water is connect, cold water is directly entered heater box so that drinking machine heating
Frequency increase, expends electric energy.
The content of the invention
The technical problems to be solved by the invention are：Add in view of the deficienciess of the prior art, providing one kind and can control
Hot water amount and water temperature, avoid the Drinking fountain of the heating repeatedly unnecessary to drinking water.
To realize the purpose of the present invention, it is achieved using following technical scheme：A kind of Drinking fountain, including cabinet and peace
Water tank, heating water tank, filter, water pump and total control circuit plate loaded on the cabinet inside；The cabinet front portion forms
Water receiving chamber, the water receiving chamber top are provided with cold water outlet pipe and boiling water outlet pipe；The cabinet is anterior above water receiving chamber
It is provided with runoff investigation knob, Water Temperature-Adjusting rotary knob, cold water water receiving switch and boiling water water receiving switch；The enclosure top is located at
Position above water tank, which is rotatably connected to, renovates；The cabinet inner bottom part forms water tank pedestal, the water tank base bottom peace
Water flowing plug connector is vertically arranged equipped with two, two water flowing plug connectors are connected to outlet pipe and water inlet pipe；
The water flowing plug connector includes base, the connection-peg being shaped among base upper end, the upper end side of connection-peg
Form side breach；
The heating water tank is arranged on the position for being higher than boiling water outlet pipe in cabinet, and heating water tank upper end is connected with blast pipe, institute
State blast pipe upper end to pass to above cabinet, and dust cover is arranged with blast pipe；Below heating water tank installation having heaters and
Temperature sensor, level sensor is also equipped with heating water tank；
The dust cover upper end closed, lower ending opening, dust cover side wall uniformly form passage, the dust cover inner top with
Gap is left between blast pipe；
The water tank is in integrally elliptic cylindrical shape, and water tank upper is connected with tank lid, and the water tank bottom corresponds to the water tank base
The position of seat water flowing plug connector forms water flowing joint；The water tank bottom surface circumferentially equidistantly forms the support feet of more than 3；
The water flowing joint includes fitting sleeve, and the bottom of fitting sleeve is connected with the sealing ring being tightly connected with the connection-peg, connect
A filler block is slidably fitted with above sealing ring in headgear, is connected with only between filler block upper end and fitting sleeve upper end
Water spring, filler block lower end offset with the sealing of sealing ring upper end；The fitting sleeve upper side forms outlet pass, is inserted described
Joint when jacking up filler block upwards the outlet pass connected with side breach；
The filter includes the cylinder and lid being connected through a screw thread, and between cylinder and lid in space
Ceramic element component；The both sides of the lid form undrinkable water water outlet mouthpiece and drinking water water outlet mouthpiece respectively；Lid
Integrally formed with a drinking water water out adapter, the drinking water water out adapter and the drinking water water outlet mouthpiece among inner bottom part
It is connected；The inner bottom part of lid also forms the undrinkable water delivery port being connected with the undrinkable water water outlet mouthpiece, described
The inner bottom part periphery of lid is additionally provided with sealing ring, and the drinking water water outlet mouthpiece inwall of the lid is further opened with vertically through extremely
The card hole of lid inner bottom part；The ceramic element component includes the ceramic element of round tube shape and is respectively fixedly connected with making pottery
First end socket and the second end socket at porcelain filter core both ends, it is fixedly connected among the first end socket and goes out with what is connected inside ceramic element
Water connector, water outlet connector outer wall are connected through a screw thread with the drinking water water out adapter, the centre one of second end socket
Body is connected with plug；The drinking water water out adapter outer wall, which rotates, is socketed with a rotation connection frame；The rotation connection frame bag
The outer ring being connected with lid inwall gap, and the inner ring with drinking water water out adapter outer wall rotation connection are included,
By the dowel integrally connected of more than 3 between inner ring and outer ring, and outer ring top forms positioning convex, under the outer ring
Surface corresponds to the also circumferential braking neck for uniformly forming more than 3 in screens hole site, and each braking neck is in same
On circumference, and depth is continuously increased braking neck along clockwise direction；The cylinder be lower ending opening round tube shape, the cylinder
Body upper end non-central location forms water supply connector, and cylinder upper end inwall center forms filter core plug socket；The ceramics
The plug of element kit and filter core plug socket grafting；It is inserted with the water supply connector into water shower nozzle；It is described enter sprinkler head it is overall
Rounded cell body shape, enter sprinkler head upper end and form the positioning edge to be offseted with water supply connector outer end, enter sprinkler head lower end and open up
There is water jet；The position that ceramic element is corresponded in the cylinder is provided with a brush assembly；The brush assembly includes use
To brush the bristle of dirt on ceramic element outer wall, the first connection ring, the second connection ring, two connection rings are integrally attached to
Between brush holder support, and be shaped in the water wheels of the first connection ring inner circumferential；The bristle is fixedly connected on brush holder support inwall；
The positioning convex outer wall interference fit of second connection ring internal face of the brush assembly and the rotation connection frame connects；It is described
The center of water wheels forms water wheels guide hole, and water wheels periphery is equably integrally formed with blade, the axle of the blade surface and water wheels
The angle of 20-30 degree is formed between；The blade of the water wheels with it is described enter sprinkler head water jet be oppositely arranged, and the spray
Angle between the direction at the mouth of a river and the blade surface is 70-90 degree；The water wheels guide hole inwall and the filter core plug socket
Outer wall is rotatablely connected；
Brake apparatus is installed on the lid；The brake apparatus includes the brake posts being slidably connected with card hole, and
The damping sheet with brake posts linkage in drinking water water outlet mouthpiece；The top of the brake posts forms a back-up ring,
A spring is arranged with brake posts between back-up ring and lid inner bottom surface；One is inserted with the drinking water water outlet mouthpiece
Overall U-shaped installing plate, one end of the damping sheet by pin rotation connect two relative walls on a mounting board it
Between, the one end of the damping sheet away from pin forms brake posts perforation, and the brake posts lower end is perforated through the brake posts,
And the locking screw for being equipped with and being offseted with damping sheet lower surface is fixed in brake posts；
The water pump is connected between outlet pipe and water supply connector by pipeline；The water inlet pipe and undrinkable water water outlet mouthpiece it
Between scouring electromagnetic valve is connected with by pipeline；It is connected between the heating water tank top and drinking water water outlet mouthpiece by pipeline
Add water solenoid valve；Boiling water water solenoid valve is connected with by pipeline between the heating water tank bottom and boiling water outlet pipe；It is described
Cold water water solenoid valve is connected with by pipeline between drinking water water outlet mouthpiece and cold water outlet pipe；
Described boiling water water receiving switch, cold water water receiving switch, runoff investigation knob, Water Temperature-Adjusting rotary knob, temperature sensor and
Signal input part of the level sensor respectively with total control circuit plate electrically connects；Described boiling water water solenoid valve, cold water water outlet
Magnetic valve plus the output end of water solenoid valve, scouring electromagnetic valve, water pump and heater respectively with total control circuit plate electrically connect；
When taking cold water, when cold water water receiving described in long-press switchs, total control circuit plate control pump working, while control cold water water outlet
Magnetic valve is opened, and the water in water tank is pumped into filter by outlet pipe, and the water after filtering is flowed out by cold water outlet pipe；
When taking away water, the water that the setting of regulating pondage adjusting knob needs to heat is first passed through, being set by Water Temperature-Adjusting rotary knob needs
The water temperature to be heated to, then once boiling water water receiving switchs short-press；Total control circuit plate controls pump working, while controls and add water
Magnetic valve is opened, and the water in water tank is pumped into filter by outlet pipe, and the water after filtering flows out to heating by drinking water water outlet mouthpiece
In water tank, when level sensor detects that water level reaches runoff investigation knob setting value, the control of total control circuit plate plus water power
Magnet valve is closed, and total control circuit plate controls heater to carry out being heated to Water Temperature-Adjusting rotary knob setting temperature to the water in heating water tank
Degree；Long-press boiling water water receiving is switched, and boiling water water solenoid valve is opened；After each water intaking terminates, the control of total control circuit plate is rinsed
Magnetic valve is opened, and cold water water solenoid valve plus water solenoid valve and boiling water water solenoid valve remain off, and water pump works on 10-
After 30s, scouring electromagnetic valve and water pump simultaneously close off.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention needs to add by the setting of runoff investigation knob
The water of heat, Water Temperature-Adjusting rotary knob setting needs to be heated to water temperature and total control circuit plate goes out to boiling water water solenoid valve, cold water
Water solenoid valve, scouring electromagnetic valve and add the control of water solenoid valve etc. to realize heating to drinking water needed for user, avoid pair
The unnecessary heating repeatedly of drinking water, reach the purpose of energy-conservation.
Brief description of the drawings
Fig. 1, Fig. 2 are the structural representations of the present invention.
Fig. 3 is the cross-sectional view of the present invention.
Fig. 4 is Fig. 3 A portions schematic enlarged-scale view.
Fig. 5, Fig. 6, Fig. 7 are cabinet cross-sectional views of the present invention.
Fig. 8 is the structural representation of water tank of the present invention.
Fig. 9 is the section structure schematic diagram of water tank of the present invention.
Figure 10 is Fig. 9 C portions schematic enlarged-scale view.
Figure 11 is Fig. 6 B portions schematic enlarged-scale view.
Figure 12 is the circuit system block diagram of the present invention.
Figure 13 is the structural representation of filter.
Figure 14 is the cross-sectional view of filter.
Figure 15 is the exploded perspective view of filter.
Figure 16 is the structural representation of the ceramic element component of filter.
Figure 17 is the structural representation of the lid of filter.
Figure 18 is the diagrammatic cross-section of the cylinder of filter.
Figure 19 is the structural representation of the brush assembly of filter.
Figure 20 is the structural representation for entering sprinkler head of filter.
Figure 21 is Figure 14 D portions schematic enlarged-scale view.
Figure 22, Figure 23 are the structural representations of water pump.
Figure 24 is the cross section structure diagram of water pump.
Figure 25, Figure 26, Figure 27 are the structural representations of guide housings.
Figure 28 is Figure 27 E portions schematic enlarged-scale view.
Figure 29 is the structural representation of electromagnet.
Figure 30 is the structural representation of the second electromagnet.
Figure 31 is the structural representation of piston and drain parts.
Figure 32 is the circuit system block diagram of water pump.
Figure 33 is the driving voltage timing diagram of each electromagnet.
Embodiment
Embodiment 1
According to Fig. 1 to Figure 20, a kind of Drinking fountain described in the present embodiment, including cabinet 81 and it is installed on the cabinet
Water tank 82, heating water tank 83, filter P, water pump 9 and total control circuit plate 85 inside 81.The lower front of cabinet 81 into
Type has water receiving chamber 811, and the top of water receiving chamber 811 is provided with cold water outlet pipe 814 and boiling water outlet pipe 815.The cabinet 81
Front portion is provided with runoff investigation knob 816, Water Temperature-Adjusting rotary knob 820, cold water water receiving switch 817 and opened above water receiving chamber
Water water receiving switch 813.The top of cabinet 81 is rotatably connected to positioned at the position of the top of water tank 82 renovates 812.The cabinet 81
Inner bottom part forms water tank pedestal 818, and the bottom of water tank pedestal 818 is provided with two and is vertically arranged water flowing plug connector 819, and two
The individual water flowing plug connector 819 is connected to outlet pipe 843 and water inlet pipe 844.The water flowing plug connector 819 includes base
8191st, the connection-peg 8192 being shaped among the upper end of base 8191, the upper end side of connection-peg form side breach
8193.The heating water tank is arranged on the position for being higher than boiling water outlet pipe 815 in cabinet, and heating water tank upper end is connected with blast pipe
831, the upper end of blast pipe 831 is passed to above cabinet, and dust cover 832 is arranged with blast pipe；Pacify below heating water tank
Equipped with heater and temperature sensor, level sensor is also equipped with heating water tank；The dust cover upper end closed, lower end is opened
Mouthful, dust cover side wall uniformly forms passage, gap is left between the dust cover inner top and blast pipe.The water tank 82
Overall is in elliptic cylindrical shape, and the top of water tank 82 is connected with tank lid 821, and the bottom of water tank 82 corresponds to the water tank pedestal water flowing
The position of plug connector 819 forms water flowing joint 824；The bottom surface of water tank 82 circumferentially equidistantly forms the support of more than 3
Pin 823.
The water flowing joint 824 includes fitting sleeve 8240, and the bottom of fitting sleeve is connected with to be sealed with the connection-peg 8192
The sealing ring 8244 of connection, be slidably fitted with a filler block 8243 positioned at sealing ring upper end in fitting sleeve, filler block upper end and
Sealing spring 8242 is connected between fitting sleeve upper end, filler block lower end offsets with the sealing of sealing ring upper end；The fitting sleeve
Upper side forms outlet pass 8241, and when the connection-peg 8192 jacks up filler block upwards, the outlet pass connects with side breach
It is logical.
The filter P includes the cylinder 2 and lid 1 being connected through a screw thread, and between cylinder and lid
Ceramic element component 3 in space.
The both sides of the lid form undrinkable water water outlet mouthpiece 11 and drinking water water outlet mouthpiece 12 respectively；Lid it is interior
Integrally formed with a drinking water water out adapter 14, the drinking water water out adapter and the drinking water water outlet mouthpiece among bottom
It is connected；The inner bottom part of lid also forms the undrinkable water delivery port 111 being connected with the undrinkable water water outlet mouthpiece, institute
The inner bottom part periphery for stating lid is additionally provided with sealing ring 13, and the inwall of drinking water water outlet mouthpiece 12 of the lid is further opened with vertically
Penetrate to the card hole 15 of lid inner bottom part.
The ceramic element component includes the ceramic element 31 of round tube shape and is respectively fixedly connected with ceramic element two
The first end socket 32 and the second end socket 34 of end, the water outlet company with connect inside ceramic element is fixedly connected among the first end socket
Joint 33, water outlet connector outer wall are connected through a screw thread with the drinking water water out adapter, one among second end socket
It is connected with plug 341.
The drinking water water out adapter outer wall, which rotates, is socketed with a rotation connection frame 6；The rotation connection frame includes
The outer ring being connected with lid inwall gap, and the inner ring 62 with drinking water water out adapter outer wall rotation connection, it is interior
The dowel integrally connected by more than 3 between outer ring is enclosed, and outer ring top forms positioning convex, the outer ring following table
Face corresponds to the also circumferential braking neck 61 for uniformly forming more than 3 in the position of card hole 15, and each braking neck is in same
On one circumference, and depth is continuously increased braking neck along clockwise direction.
The cylinder is the round tube shape of lower ending opening, and cylinder upper end non-central location forms water supply connector 21,
Cylinder upper end inwall center forms filter core plug socket 22；The plug of the ceramic element component is inserted with filter core plug socket
Connect.
It is inserted with the water supply connector into water shower nozzle 5；It is described enter the overall rounded cell body shape of sprinkler head, enter sprinkler head
Upper end is formed with the positioning that water supply connector outer end offsets along 51, is entered sprinkler head lower end and is offered water jet 52.
The position that ceramic element is corresponded in the cylinder is provided with a brush assembly 4；The brush assembly includes use
To brush the bristle 43 of dirt on ceramic element outer wall, the first connection ring 41, the second connection ring 44, it is integrally attached to described in two
Brush holder support 42 between connection ring, and it is shaped in the water wheels 45 of the first connection ring inner circumferential；The bristle is fixedly connected on brush
On bar inwall.The positioning convex outer wall of second connection ring internal face of the brush assembly and the rotation connection frame is interference fitted
Connection.
The center of the water wheels forms water wheels guide hole 451, and water wheels periphery is described equably integrally formed with blade 452
The angle of 20-30 degree is formed between blade surface and the axial direction of water wheels；The blade of the water wheels with it is described enter sprinkler head water spray
Mouth is oppositely arranged, and the angle between the direction of the water jet and the blade surface is 70-90 degree；The water wheels guide hole
451 inwalls are rotatablely connected with the outer wall of filter core plug socket 22.
Brake apparatus 7 is installed on the lid 1；The brake apparatus 7 includes the system being slidably connected with card hole 15
Dynamic post 71, and the damping sheet 75 with brake posts linkage in drinking water water outlet mouthpiece 12.
The top of the brake posts forms a back-up ring, is arranged with brake posts between back-up ring and lid inner bottom surface
One spring 72；It is inserted with an overall U-shaped installing plate 74 in the drinking water water outlet mouthpiece 12, the one of the damping sheet
Between end connects two relative walls on a mounting board by pin rotation, the one end of the damping sheet away from pin forms
Brake posts perforation 751, the brake posts lower end through the brake posts perforate, and in brake posts fixation be equipped with damping sheet
The locking screw 73 that end face offsets；The blade area of the water wheels is 1-2cm2, and the internal diameter of the water jet is 5-8mm.
The water pump 9 is connected between outlet pipe 843 and water supply connector 21 by pipeline；The water inlet pipe 844 and non-drink
Scouring electromagnetic valve 846 is connected with by pipeline between water water outlet mouthpiece 11；The heating water tank top connects with drinking water water outlet
It is connected between mouth 12 by pipeline and adds water solenoid valve 847；Pass through pipe between the heating water tank bottom and boiling water outlet pipe 815
Road is connected with boiling water water solenoid valve 841；Connected between the drinking water water outlet mouthpiece 12 and cold water outlet pipe 814 by pipeline
There is cold water water solenoid valve 845.
Connect and three-way pipe is connected with the pipeline of the drinking water water outlet mouthpiece 12, the other both ends of three-way pipe pass through respectively
Described in pipeline connection plus water solenoid valve and cold water water solenoid valve.
Described boiling water water receiving switch, cold water water receiving switch, runoff investigation knob, Water Temperature-Adjusting rotary knob, temperature sensor
And signal input part of the level sensor respectively with total control circuit plate electrically connects；Described boiling water water solenoid valve, cold water
Water solenoid valve plus the output end of water solenoid valve, scouring electromagnetic valve, water pump and heater respectively with total control circuit plate are electrically connected
Connect.
The runoff investigation knob, Water Temperature-Adjusting rotary knob are revolving rheostat, and boiling water water receiving switch, cold water water receiving switch are
Key switch；The total control circuit plate is SCM Based control system.Because total control circuit plate is according to boiling water water receiving
The signal of switch, cold water water receiving switch, runoff investigation knob and level sensor etc. controls each magnetic valve, water pump and heating
The break-make of device etc. is the conventional technical means that those skilled in the art easily realize, is repeated no more in text.
When taking cold water, when cold water water receiving described in long-press switchs, total control circuit plate control pump working, while control cold water
Water solenoid valve is opened, and the water in water tank is pumped into filter by outlet pipe, and the water after filtering is flowed out by cold water outlet pipe.
When taking away water, the water that the setting of regulating pondage adjusting knob needs to heat is first passed through, is set by Water Temperature-Adjusting rotary knob
The water temperature being heated to is needed calmly, and then once boiling water water receiving switchs short-press；Total control circuit plate controls pump working, controls simultaneously
Water solenoid valve is added to open, the water in water tank is pumped into filter by outlet pipe, and the water after filtering is flowed out to by drinking water water outlet mouthpiece
In heating water tank, when level sensor detects that water level reaches runoff investigation knob setting value, the control of total control circuit plate adds
Water solenoid valve is closed, and total control circuit plate control heater heats to the water in heating water tank, is detected to temperature sensor
Total control circuit plate control heater stops heating when reaching Water Temperature-Adjusting rotary knob design temperature to temperature；Long-press boiling water water receiving is opened
Close, boiling water water solenoid valve is opened.
After each water intaking terminates, total control circuit plate control scouring electromagnetic valve is opened, cold water water solenoid valve plus water power
Magnet valve and boiling water water solenoid valve remain off, and water pump works on after 10-30s, and scouring electromagnetic valve and water pump simultaneously close off.
The filter is integrally formed on brush assembly by the current driving projected by entering the water jet on sprinkler head
Water wheels, drive brush assembly to be rotated in cylinder, and be arranged on the brush assembly of the cylinder and ceramic element inter-module
The bristle for removing ceramic element dirt has been fixedly installed again, i.e., has realized ceramic element while filter potable water
The scrub of component, realize the purpose for the power automatic cleaning ceramic filter core that current are produced by water pump.
The water supply connector connects through the outlet pipe of water pump and water tank, and the undrinkable water water outlet mouthpiece is through scouring electromagnetic valve
It is connected with the water inlet pipe of water tank, the drinking water water outlet mouthpiece is connected to cold water outlet pipe or boiling water outlet pipe, goes out in drinking water
The water flowing of water interface and during undrinkable water water outlet mouthpiece not water flowing（When i.e. water pump is opened, and cold water water solenoid valve or plus water power magnetic
When valve is opened）, the water in drinking water water outlet mouthpiece flows into by drinking water water out adapter end, flowed out to drinking water water outlet mouthpiece end,
Now the current of the direction can produce positive thrust to stopping the damping sheet of its proper flow, force damping sheet away from pin one
End rotates down（One end that damping sheet is hinged with installing plate is close to lid inner bottom part）, now damping sheet drive be against its lower surface
Locking screw together move downward, brake posts overcome spring force to move downward, make brake posts upper end with braking neck depart from；
Brush assembly rotates under conditions of no brake bar prevents to rotate under the drive of water wheels in cylinder.In drinking water water outlet
When interface not water flowing rather than drinking water water outlet mouthpiece water flowing（When i.e. water pump and scouring electromagnetic valve are opened）, the elastic force of spring makes braking
Post is stretched upwards, and brush assembly rotates clockwise together with rotation connection frame under water wheels drive, is rotated in rotation process on link
Braking neck and brake posts it is stuck, now water wheels can not drive brush assembly to rotate, and avoid ceramic element from excessively being scrubbed
And produce unnecessary abrasion；At the same time, the running water with a small amount of dirt in cylinder, outside ceramic element is through non-
Drinking water water outlet mouthpiece brings back to water tank by water inlet pipe, realizes that the dirt to get off is removed in automatic exclusion from filter core.
When the water tank is not loaded into the water tank pedestal, the filler block is located in sealing ring, and water flowing joint is in closing
State；Load the water tank pedestal when the water flowing joint of the water tank is corresponded into water flowing plug connector, the base of water flowing plug connector supports
Firmly water tank bottom lower surface, connection-peg are inserted in water flowing joint via sealing ring, the fore-set filler block in the presence of water tank gravity
Sealing spring-compressed is forced to move upwards, outlet pass connects with side breach, and water flowing joint is in connected state with water flowing plug connector
State.
The water tank 82 being filled with water is inserted into water tank pedestal 818 in use, renovating on cabinet 81 812 is started by the present invention,
The installation corresponding with the water flowing plug connector 819 on the water tank pedestal of the water flowing joint 824 of the water tank；Water in water tank can lead to
Outlet pipe 843 is crossed by the inflow filter P of water supply connector 21；
When user needs to take cold water, long-press cold water water receiving switch 817, total control circuit plate 85 sends instruction, the work of water pump 9
Make, while cold water water solenoid valve 845 is opened, the water in water tank is by outlet pipe 843, through the inflow filter P of water supply connector 21, mistake
Water after filter is flowed out by drinking water water outlet mouthpiece 12, and now water outlet is poured into by cold water outlet pipe 814 and is positioned in water receiving chamber 811
In the water container of the corresponding position of cold water outlet pipe 814.
When user needs to take away water, the water that the setting of regulating pondage adjusting knob 816 needs to heat is first passed through, then
Once boiling water water receiving switchs short-press；Total control circuit plate 85 is sent plus water instruction, pump working, while adds water solenoid valve 847 to beat
Open, the water in water tank is by outlet pipe 843, and through the inflow filter P of water supply connector 21, the water after filtering is by drinking water water outlet mouthpiece 12
Outflow, water outlet are flowed into heating water tank 83, and total control circuit plate is according to the information of level sensor, when water level reaches runoff investigation
During 816 setting value of knob, control plus water solenoid valve 847 are closed, and heating water tank 83 carries out being heated to lower water temperature to the water in it
It is stopped after knob design temperature, in order to ensure the pressure stability in heating water tank, heating water tank top is provided with blast pipe
831, now boiling water lighted using signal lamp, user's long-press boiling water water receiving switch 813, boiling water water solenoid valve 841 is opened, and is gone out
Water is poured into by boiling water outlet pipe 815 to be positioned in the water container that the position of boiling water outlet pipe 815 is corresponded in water receiving chamber 811.
In the above-mentioned progress of work（User takes boiling water or cold water）, total control circuit plate controls the cold water to go out water power
After magnet valve 845 or boiling water water solenoid valve 841 are closed, scouring electromagnetic valve 846 is opened, and water pump works on after 10-30s, is rinsed
Magnetic valve and water pump simultaneously close off.In said process, filter P water supply connector water inlet, undrinkable water delivery port water outlet, incited somebody to action
During filter in caused dirt band recovery tank.When water in water tank is soon finished, water tank is taken out from cabinet, outwells dirt
The higher running water of dirty concentration, and topped up with water again after being cleaned with running water, are again loaded into cabinet.
Water, water temperature and the master control electricity that the present invention needs to heat by runoff investigation knob, Water Temperature-Adjusting rotary knob setting
Road plate is to boiling water water solenoid valve, cold water water solenoid valve, scouring electromagnetic valve and adds the control of water solenoid valve etc. to realize to making
The heating of drinking water needed for user, the heating repeatedly unnecessary to drinking water is avoided, reach the purpose of energy-conservation；In addition, this hair
Bright filter can realize self-cleaning effect by the opening and closing of scouring electromagnetic valve.
Embodiment 2
The present embodiment is on the basis of embodiment 1, in the electronic scale mould that water tank pedestal floor installation has to measure water tank weight
Block, electronic scale module are connected with total control circuit plate, and are also associated with buzzer on total control circuit plate.Surveyed in electronic scale module
Water tank weight when being less than setting value, total control circuit plate control buzzer warning, prompt the running water in user's replacing water tank.
The weight of the water tank is 200g or so, and the setting value can be set to 0.5-1kg, so, when the water in water tank is soon complete, water
The concentration of middle dirt impurity is higher, reminds user to change water in time by buzzer, avoids the excessive originally water pollution of impurity
Filter and each ventilating water pipe.
Embodiment 3
The present embodiment on the basis of embodiment 1 or 2, in order to ensure filter efficient operation and ensure its automatical cleaning ability,
Further improvement has been done to water pump.According to Figure 21 to Figure 33, the water pump includes the guiding of upper end closed lower ending opening
Housing 91, the pump case 92 of the circular tube shaped of guide housings bottom is fixedly connected on, is fixedly connected on the pump cover 93 of pump case lower end, it is sliding
The dynamic piston 94 in pump case, and in guide housings driving the three of piston up-down electromagnetism
Iron.
Three electromagnet include the 3rd electromagnet 963 for being fixedly mounted on guide housings inner top, and slide
The second electromagnet 962 and the first electromagnet 961 in guide housings, the first electromagnet are located under the second electromagnet
Side.
The electromagnet includes the iron core 9601 of annular, is fixedly connected on the coil windings 9603 of its outer diameter, fixed
Two for being connected to the insulation outer ring 9604 of coil windings periphery and being fixedly connected on the outer ring outer wall of insulation are symmetrically arranged
Elastic brush 9605, two elastic brush are connected with the both ends of coil windings respectively, and the centre of iron core is circular pilot hole
9602.Described elastic brush is to be bent into the copper sheet of U-shaped.
Position on the insulation outer ring of second electromagnet different from elastic brush also forms two guiding plush coppers 9606.
The inner bottom part center of the guide housings is fixedly connected with one and the pilot hole of each electromagnet coordinates the company of slip
The lead 912 connect；The guide housings inwall forms a pair of conductive chute a913 along guide housings length direction, leads for a pair
Electric chute b914 and a pair of conductive groove 915, the conductive chute a, conduction material are formed on conductive chute b and conductive trough inwall
The bed of material, it is fixedly connected with above the conductive shell with each conductive chute a, leading on conductive chute b and conductive trough
The binding post 911 of material layer electrical connection；The elastic brush of 3rd electromagnet electrically connects with conductive trough, second electricity
The elastic brush of magnet is slidably connected with conductive chute a, and the elastic brush of first electromagnet is slided with conductive chute b to be connected
Connect；The guide housings inwall also form a pair and the second electromagnet on guiding plush copper coordinate the locating channel that is slidably connected
916。
With each to conductive chute a, the binding post that conductive chute b and conductive trough are connected respectively passes through wire and controller electricity
Connection, the locating channel include a longitudinal cell body 9161, and the lower end of longitudinal cell body forms a tiltedly lower spigot surface
A9162, tiltedly lower spigot surface a lower end form the first positioning port 9163, side of first positioning port away from tiltedly lower spigot surface a into
Type has tiltedly lower spigot surface b9166, and tiltedly lower spigot surface b lower end forms the second positioning port 9167, the surface of the second positioning port
The return guide groove 9168 that upper end connects with longitudinal cell body is formed, longitudinal cell body and the position returned between guide groove form
One locating piece 9164, the upper end of locating piece is relative with returning to guide groove and staggers with cannelure body position, under locating piece
End is V-shaped positioning surface 9165, and V-shaped positioning surface is only located at the first positioning port and tiltedly lower spigot surface b surface, and V-arrangement positions
The peak position in face is above the second oblique lower spigot surface b.
The upper end of piston 94 is fixedly connected with more than 3 piston rods 941 being distributed with circumference array, on each piston rod
End is connected with an annular clamping ring 942 jointly, and clamping ring is fixedly connected with the first electromagnet by screw.The top of piston
A fixed block 953 is fixedly connected with, a spiral helicine drainpipe 95 is fixed with fixed block, air inlet is installed above pump case
Valve 951 and draining valve 952, the drainpipe upper end are connected with draining valve.Water intaking valve 931 and outlet valve are connected with the pump cover
932.The intake valve, draining valve, water intaking valve, outlet valve are check valve.Controller is according to the instruction of total control circuit plate, control
The electromagnet of water pump processed works in order.
Described controller is SCM Based control circuit or PLC, as shown in figure 33, in water pump
During work, controller inputs corresponding control electric current to three electromagnet respectively.Specifically, pushed away the stage under piston, controller
The 3rd electromagnet and the second electromagnet is controlled to be powered and produce opposing magnetic field, magnetic field repulsive force promotes piston to move downward, in the second electricity
When magnet is moved to extreme position（Electromagnet conduction time is set by controller）, controller control the 3rd electromagnet temporarily break
Electricity, controller control the first electromagnet and the second electromagnet to be powered and produce opposing magnetic field, and it is downward that magnetic field repulsive force promotes piston to continue
Motion, when the 3rd electromagnet powers off, the guiding plush copper of the second electromagnet is stuck in the V-shaped positioning surface position on locating channel, will not
Move up；The stage is pulled up in piston, controller controls the first electromagnet and the second electromagnet to be powered and produce magnetic field in the same direction, magnetic field
Gravitation drives piston upwards, and now the guiding plush copper on the second electromagnet is moved to the second positioning port position, to the first electricity
Magnet and the magnetic that when the second electromagnetic actuation is together with, controller the 3rd electromagnetism Tie Tong road of control produces and the second electromagnet leads to
, gravitation driving piston in magnetic field continues up.
Due to pulling up stage, especially the second half in piston, because three electromagnet are powered simultaneously, stronger magnetic field is formd
Power, it can effectively drive piston upwards.The water pump is particularly suitable as suction pump, can be the water or other of lower position
Liquid is pumped toward a high position.One Hall sensor 97, Hall sensor and controller are installed in the bottom outer wall of the pump case
Signal input part electrical connection.
The operation principle of the water pump is such, when the first electromagnet is moved down into extreme position, hall sensing
Device detects signal, and controller obtains the total time that the first electromagnet is spent during be topmost moved to bottom, then
In next cycle, controller controls the time of the driving current of each electromagnet to be used as reference to be set according to the total time
It is fixed.--- piston is proportional from the total time and the pressure size outside water pump water outlet valve for being topmost moved to bottom.Such as water
When pump has just started work, during piston moves downward, the 3rd electromagnet of driving, the current time of the first electromagnet are 3s, are driven
The current time of dynamic second electromagnet is 6s；And Hall sensor detects that the time that the first electromagnet is moved to bottom is
4s, then at next cycle, the 3rd electromagnet of driving, the current time of the first electromagnet are changed to 2s, the second electromagnet of driving
Current time is changed to 4s；In piston up motion process, what the first electromagnet, the second electromagnet were powered is also set to total time
It is identical with the time that piston moves downward.
Claims (1)
- A kind of 1. Drinking fountain, it is characterised in that：Including cabinet and it is installed on the water tank of the cabinet inside, heating water tank, mistake Filter, water pump and total control circuit plate；The cabinet front portion forms water receiving chamber, and the water receiving chamber top is provided with cold water outlet pipe and boiling water outlet pipe；The cabinet is anterior be provided with above water receiving chamber runoff investigation knob, Water Temperature-Adjusting rotary knob, cold water water receiving switch with And boiling water water receiving switch；The position that the enclosure top is located above water tank, which is rotatably connected to, renovates；The cabinet inner bottom part forms water tank pedestal, and the water tank base bottom is provided with two and is vertically arranged water flowing grafting Part, two water flowing plug connectors are connected to outlet pipe and water inlet pipe；The water flowing plug connector includes base, the connection-peg being shaped among base upper end, the upper end side of connection-peg Form side breach；The heating water tank is arranged on the position for being higher than boiling water outlet pipe in cabinet, and heating water tank upper end is connected with blast pipe, institute State blast pipe upper end to pass to above cabinet, and dust cover is arranged with blast pipe；Below heating water tank installation having heaters and Temperature sensor, level sensor is also equipped with heating water tank；The dust cover upper end closed, lower ending opening, dust cover side wall uniformly form passage, the dust cover inner top with Gap is left between blast pipe；The water tank is in integrally elliptic cylindrical shape, and water tank upper is connected with tank lid, and the water tank bottom corresponds to the water tank base The position of seat water flowing plug connector forms water flowing joint；The water tank bottom surface circumferentially equidistantly forms the support feet of more than 3；The water flowing joint includes fitting sleeve, and the bottom of fitting sleeve is connected with the sealing ring being tightly connected with the connection-peg, connect A filler block is slidably fitted with above sealing ring in headgear, is connected with only between filler block upper end and fitting sleeve upper end Water spring, filler block lower end offset with the sealing of sealing ring upper end；The fitting sleeve upper side forms outlet pass, is inserted described Joint when jacking up filler block upwards the outlet pass connected with side breach；The filter includes the cylinder and lid being connected through a screw thread, and between cylinder and lid in space Ceramic element component；The both sides of the lid form undrinkable water water outlet mouthpiece and drinking water water outlet mouthpiece respectively；Lid Integrally formed with a drinking water water out adapter, the drinking water water out adapter and the drinking water water outlet mouthpiece among inner bottom part It is connected；The inner bottom part of lid also forms the undrinkable water delivery port being connected with the undrinkable water water outlet mouthpiece, described The inner bottom part periphery of lid is additionally provided with sealing ring, and the drinking water water outlet mouthpiece inwall of the lid is further opened with vertically through extremely The card hole of lid inner bottom part；The ceramic element component includes the ceramic element of round tube shape and is respectively fixedly connected with making pottery First end socket and the second end socket at porcelain filter core both ends, it is fixedly connected among the first end socket and goes out with what is connected inside ceramic element Water connector, water outlet connector outer wall are connected through a screw thread with the drinking water water out adapter, the centre one of second end socket Body is connected with plug；The drinking water water out adapter outer wall, which rotates, is socketed with a rotation connection frame；The rotation connection frame bag The outer ring being connected with lid inwall gap, and the inner ring with drinking water water out adapter outer wall rotation connection are included, By the dowel integrally connected of more than 3 between inner ring and outer ring, and outer ring top forms positioning convex, under the outer ring Surface corresponds to the also circumferential braking neck for uniformly forming more than 3 in screens hole site, and each braking neck is in same On circumference, and depth is continuously increased braking neck along clockwise direction；The cylinder be lower ending opening round tube shape, the cylinder Body upper end non-central location forms water supply connector, and cylinder upper end inwall center forms filter core plug socket；The ceramics The plug of element kit and filter core plug socket grafting；It is inserted with the water supply connector into water shower nozzle；It is described enter sprinkler head it is overall Rounded cell body shape, enter sprinkler head upper end and form the positioning edge to be offseted with water supply connector outer end, enter sprinkler head lower end and open up There is water jet；The position that ceramic element is corresponded in the cylinder is provided with a brush assembly；The brush assembly includes use To brush the bristle of dirt on ceramic element outer wall, the first connection ring, the second connection ring, two connection rings are integrally attached to Between brush holder support, and be shaped in the water wheels of the first connection ring inner circumferential；The bristle is fixedly connected on brush holder support inwall； The positioning convex outer wall interference fit of second connection ring internal face of the brush assembly and the rotation connection frame connects；It is described The center of water wheels forms water wheels guide hole, and water wheels periphery is equably integrally formed with blade, the axle of the blade surface and water wheels The angle of 20-30 degree is formed between；The blade of the water wheels with it is described enter sprinkler head water jet be oppositely arranged, and the spray Angle between the direction at the mouth of a river and the blade surface is 70-90 degree；The water wheels guide hole inwall and the filter core plug socket Outer wall is rotatablely connected；Brake apparatus is installed on the lid；The brake apparatus includes the brake posts being slidably connected with card hole, and The damping sheet with brake posts linkage in drinking water water outlet mouthpiece；The top of the brake posts forms a back-up ring, A spring is arranged with brake posts between back-up ring and lid inner bottom surface；One is inserted with the drinking water water outlet mouthpiece Overall U-shaped installing plate, one end of the damping sheet by pin rotation connect two relative walls on a mounting board it Between, the one end of the damping sheet away from pin forms brake posts perforation, and the brake posts lower end is perforated through the brake posts, And the locking screw for being equipped with and being offseted with damping sheet lower surface is fixed in brake posts；The water pump is connected between outlet pipe and water supply connector by pipeline；The water inlet pipe and undrinkable water water outlet mouthpiece it Between scouring electromagnetic valve is connected with by pipeline；It is connected between the heating water tank top and drinking water water outlet mouthpiece by pipeline Add water solenoid valve；Boiling water water solenoid valve is connected with by pipeline between the heating water tank bottom and boiling water outlet pipe；It is described Cold water water solenoid valve is connected with by pipeline between drinking water water outlet mouthpiece and cold water outlet pipe；Described boiling water water receiving switch, cold water water receiving switch, runoff investigation knob, Water Temperature-Adjusting rotary knob, temperature sensor and Signal input part of the level sensor respectively with total control circuit plate electrically connects；Described boiling water water solenoid valve, cold water water outlet Magnetic valve plus the output end of water solenoid valve, scouring electromagnetic valve, water pump and heater respectively with total control circuit plate electrically connect；When taking cold water, when cold water water receiving described in long-press switchs, total control circuit plate control pump working, while control cold water water outlet Magnetic valve is opened, and the water in water tank is pumped into filter by outlet pipe, and the water after filtering is flowed out by cold water outlet pipe；When taking away water, the water that the setting of regulating pondage adjusting knob needs to heat is first passed through, being set by Water Temperature-Adjusting rotary knob needs The water temperature to be heated to, then once boiling water water receiving switchs short-press；Total control circuit plate controls pump working, while controls and add water Magnetic valve is opened, and the water in water tank is pumped into filter by outlet pipe, and the water after filtering flows out to heating by drinking water water outlet mouthpiece In water tank, when level sensor detects that water level reaches runoff investigation knob setting value, the control of total control circuit plate plus water power Magnet valve is closed, and total control circuit plate controls heater to carry out being heated to Water Temperature-Adjusting rotary knob setting temperature to the water in heating water tank Degree；Long-press boiling water water receiving is switched, and boiling water water solenoid valve is opened；After each water intaking terminates, total control circuit plate control scouring electromagnetic valve is opened, cold water water solenoid valve plus water solenoid valve Remained off with boiling water water solenoid valve, water pump works on after 10-30s, and scouring electromagnetic valve and water pump simultaneously close off；In the electronic scale module that water tank pedestal floor installation has to measure water tank weight, electronic scale module and total control circuit plate Connection, and it is also associated with buzzer on total control circuit plate；When electronic scale module measures water tank weight and is less than setting value, master control Circuit board processed controls buzzer warning, prompts user to change the running water in water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711178825.2A CN107752766A (en) | 2016-04-22 | 2016-04-22 | A kind of Drinking fountain |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711178825.2A CN107752766A (en) | 2016-04-22 | 2016-04-22 | A kind of Drinking fountain |
| CN201610262233.8A CN105662146B (en) | 2016-04-22 | 2016-04-22 | A kind of Drinking fountain |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610262233.8A Division CN105662146B (en) | 2016-04-22 | 2016-04-22 | A kind of Drinking fountain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107752766A true CN107752766A (en) | 2018-03-06 |
Family
ID=56215939
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610262233.8A Active CN105662146B (en) | 2016-04-22 | 2016-04-22 | A kind of Drinking fountain |
| CN201711178825.2A Pending CN107752766A (en) | 2016-04-22 | 2016-04-22 | A kind of Drinking fountain |
| CN201711178613.4A Pending CN107960859A (en) | 2016-04-22 | 2016-04-22 | A kind of Drinking fountain |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610262233.8A Active CN105662146B (en) | 2016-04-22 | 2016-04-22 | A kind of Drinking fountain |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711178613.4A Pending CN107960859A (en) | 2016-04-22 | 2016-04-22 | A kind of Drinking fountain |
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| CN (3) | CN105662146B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022023478A1 (en) * | 2020-07-29 | 2022-02-03 | Société des Produits Nestlé S.A. | Beverage preparation machine with machine housing and detachable liquid tank |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107631058A (en) * | 2016-06-16 | 2018-01-26 | 徐嘉 | A kind of multifunctional domestic combination tap device |
| CN106073511A (en) * | 2016-08-18 | 2016-11-09 | 冯海涛 | Instant heating type drinking water heating device with filtering function |
| CN109222649A (en) * | 2017-07-11 | 2019-01-18 | 佛山市顺德区美的饮水机制造有限公司 | Desk-top Drinking fountain |
| CN108178374B (en) * | 2017-08-13 | 2020-11-17 | 佛山市汇之源城北污水处理有限公司 | A sediment device for domestic sewage |
| CN109898620A (en) * | 2019-03-07 | 2019-06-18 | 刘之泉 | A kind of closestool |
| CN109987679B (en) * | 2019-04-01 | 2024-01-09 | 浙江朗诗德健康饮水设备股份有限公司 | Water purifier capable of detecting user pouring concentrated water |
| CN111663627A (en) * | 2020-06-24 | 2020-09-15 | 北京爱德姆能源科技有限公司 | Odor-resistant piston device for hotel drain pipe |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105662146B (en) | 2018-08-14 |
| CN105662146A (en) | 2016-06-15 |
| CN107960859A (en) | 2018-04-27 |
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Application publication date: 20180306 |