CN103398211B - A kind of faucet valve core and lower control water annex thereof - Google Patents
A kind of faucet valve core and lower control water annex thereof Download PDFInfo
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- CN103398211B CN103398211B CN201310267636.8A CN201310267636A CN103398211B CN 103398211 B CN103398211 B CN 103398211B CN 201310267636 A CN201310267636 A CN 201310267636A CN 103398211 B CN103398211 B CN 103398211B
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Abstract
The present invention relates to a kind of faucet valve core, the valve casing grip assembly of control water cavity and upper control water cavity is set in comprising, transmission water mechanism current being sent to upper control water cavity from lower control water cavity is provided with in valve casing grip assembly, described transmission water mechanism comprises lower control water annex and epicoele base, described lower control water annex is provided with central waterway and side waterway, and described epicoele base is provided with the central water port that communicate corresponding to side waterway central waterway and water port, side respectively.Technical solution of the present invention, have that product component processing is simple, quality assurance, the perfect effect of function.
Description
Technical field
The present invention relates to a kind of faucet valve core.
Background technique
Claimant proposed the application for a patent for invention (number of patent application: 201110073428.5) that a key name is called " a kind of faucet valve core " in 2011, adopt the design of flow control and temperature control two groups of assembly vertical distribution, between flow control assembly and temperature-controlling component, establish transmission wet part.The design proposal of this transmission wet part is a lot, but design quality-determining, the parts of different designs scheme, in its working life, function quality, cost of production etc. all differ widely.
Flow control moving valve plate annex (it should be noted that, this flow control moving valve plate annex is corresponding with the lower control water annex of the present patent application technological scheme) the bottom surface inlet of technique scheme, under prior art conditions, cannot injection molding circular.Injection molding technique is wanted to realize the demoulding, and bottom surface inlet must cover corresponding waterway in central siphon completely.Due to product size restriction, the central siphon external diameter of flow control moving valve plate annex can not be too large, and flow control moving valve plate annex bottom surface inlet must depart from center certain distance, to make in bottom surface inlet and central siphon that corresponding waterway can not with one heart or close to one heart, bottom surface inlet can only be that rectangular could cover corresponding waterway in central siphon.Moving valve plate axle moves covering or under opening formed objects water port condition, it is larger that centre distance is departed from water port, and axle moves angle just can be less, and valve block suits the function controlling current of sliding and could realize.Otherwise it is too large that axle moves angle, causes spool housing handle groove too wide, make whole spool shell shaky.Or cause some functional part not have design attitude, and such as, two water port partition walls etc.Meanwhile, central siphon external diameter is too large, and fixed valve plate base can be caused not have sufficient size to design suitable central siphon hole.And central siphon external diameter is larger, its endoporus sealing effect is poorer.Flow control moving valve plate annex bottom surface inlet and flow control moving valve plate water port junction point must all circular concentric, endoporus could be established to seal at the two sealing engagement place.Otherwise, can only plane sealing be established, and plane sealing must incite somebody to action the two fixing and locking with screw or screens.Freezing, in high pressure or material deformation situation, this fixing meeting is constantly unclamped, and cannot automatically recover.
And hot and cold water distributes the right and left waterway in flow control moving valve plate annex central siphon, central siphon two sides temperature is different, and in using process, material expands with heat and contract with cold and causes external diameter to be out of shape, and affects central siphon outer wall endoporus sealing effect.In addition, two waterway midfeathers separate.This partition wall design produces pulling force in injection molding technique, makes central siphon external diameter not circle, affects endoporus sealing effect.
Summary of the invention
For the deficiency that prior art exists, a kind of product component is the object of the present invention is to provide to process simple, quality assurance, the perfect faucet valve core of function.
For achieving the above object, the invention provides following technological scheme: a kind of faucet valve core, the valve casing grip assembly of control water cavity and upper control water cavity is set in comprising, transmission water mechanism current being sent to upper control water cavity from lower control water cavity is provided with in valve casing grip assembly, described transmission water mechanism comprises lower control water annex and epicoele base, described lower control water annex is provided with central waterway and side waterway, and described epicoele base is provided with the central water port that communicate corresponding to side waterway central waterway and water port, side respectively.
By adopting technique scheme, lower control water annex establishes central waterway and side waterway, and central waterway is located in the waterway of side, lower control water annex underside side inlet and central inlet, more conveniently can be set to two circular inletes, and communicate side waterway and central waterway respectively, and the central waterway of the whole encirclement of side waterway, make waterway contact identical water temperature, using process is not yielding, does not have partition wall to design yet.Thus have that product component processing is simple, quality assurance, the perfect effect of function.
The present invention is set to further: described lower control water annex end face is provided with hollow water shutoff step, described lower control water annex bottom surface is provided with underside side inlet and central inlet, described central waterway is by central inlet and be arranged in hollow water shutoff step, and described hollow water shutoff step and space between central waterway communicate with underside side inlet and form described side waterway.
The present invention is further set to: also comprise base annex, described base annex is provided with the waterway run through, the sealed step being provided with center hole and end face seal groove, described waterway arrives end face and passes after below sealed step from base accessory side face pass-out, the center hole of waterway and sealed step communicates, and end face seal groove surrounds waterway and sealed step.
The present invention can also be set to: also comprise valve core base, described valve core base is provided with central water service pipe, and the bottom surface of valve core base is provided with underside side water intake and central water inlet, described lower control water annex end face is provided with hollow water shutoff step, central water inlet is connected in one end of described central water service pipe, the other end of central authorities' water service pipe connects epicoele base central authorities water port through the hollow water shutoff step of lower water control valve sheet and lower control water annex successively, between hollow water shutoff step and central water service pipe, space forms described side waterway, in described central water service pipe, space communicates with central water inlet and forms described central waterway.
Different owing to transmitting wet part cold/hot water passage hydraulic pressure, make flow control valve block the right and left bear different hydraulic pressure, as designed without other pressure release, high pressure lower valve is easily turned on one's side and leaks.And in addition pressure release design can conflict other Functional Designs.By adopting technique scheme, central water service pipe connects valve core base and epicoele base, a kind of current is regulated without lower water control valve sheet, directly enters control water cavity.Upper water control valve sheet and lower water control valve sheet regulate hot and cold water respectively, and the current after adjustment directly flow out spool.So there is no too large hydraulic pressure above valve block, valve block can not be caused to turn on one's side.And the cold and hot water port of valve block all can be set to symmetrical respectively, ensure that valve block is not turned on one's side further.The transmission wet part of this design is also simpler.In addition, valve block only bears a kind of water flow pressure, and operating handle can be better.
The present invention is further set to: water port, described side and central water port are run through and be arranged on epicoele base, described central water port is positioned at its central home position at epicoele base end face, and water port, side and central water port are enclosed in intracavity space by the anchor ring that is tightly connected of epicoele base end face.
The present invention is further set to: described epicoele base comprises epicoele base body and base annex, sealed step set by epicoele base body bottom surface compresses base annex end face seal groove inner seal liner, make to be formed between epicoele base body and base annex junction plane to seal, simultaneously, base annex end face sealed step contact epicoele base body bottom surface central authorities water port end face, and compress Sealing set by its end face sealing water channel, base annex waterway communicates water port, epicoele base body side, the central water port of base annex sealed step center hole docking epicoele base body bottom surface central authorities home position.
Between the central siphon of flow control moving valve plate annex and fixed valve plate base and central siphon hole, cold/hot water mouth compartment place can only endoporus Seal Design, must the two establish corresponding step formation intermediate seal adjacent to each other groove to place Sealing.Under prior art condition, cannot at fixed valve plate datum axle pore inwall molding and forming seal groove.Although, flow control moving valve plate annex central siphon outer wall can molding and forming seal groove, but inevitably assembly line can affect sealing effect, even high-pressure resisting valve core cannot be designed, and the fixed valve plate datum axle pore of this design is too large, the partition in fixed valve plate base waterway and central siphon hole is too thin, and use and injection moulding process all easily produce distortion, affect compartment place endoporus sealing effect.If plane sealing designs, after Sealing is compressed, can pressure be produced, greatly increase the friction that valve block suits slip, affect operating handle, even cannot use.By adopting technique scheme, if the assemblying body of epicoele base body and base annex two part.Two parts establish corresponding step adjacent to each other mutually, and the middle seal groove that formed solves above-mentioned technical problem.
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is first embodiment's spool exploded view;
Fig. 2 is second embodiment's spool exploded view;
Fig. 3 is valve casing cover sectional view;
Fig. 4 is spool External view;
Fig. 5 is first embodiment's epicoele base sheath sectional view of main part;
Fig. 6 is first embodiment's epicoele base sheath main body figure;
Fig. 7 is the first embodiment base annex top view;
Fig. 8 is the first embodiment base annex three-dimensional view;
Fig. 9 controls water annex sectional view under the first embodiment;
Figure 10 controls water annex sectional view under the second embodiment;
Figure 11 controls water annex sectional view under the 3rd embodiment;
Figure 12 is second embodiment's epicoele base sheath sectional view.
Embodiment
See accompanying drawing 1 to accompanying drawing 12.
Faucet valve core disclosed in patent of the present invention, sets the valve casing grip assembly of control water cavity and upper control water cavity, has lower water control valve sheet and lower control water annex 6 in lower control water cavity in comprising, upper water control valve sheet and upper control water annex 7 is had in upper control water cavity, also has valve core base 4, spool top cover 5, Sealing; Valve casing grip assembly comprises epicoele base sheath 2 and valve casing cover 1; Lower water control valve sheet comprises the first moving valve plate 9a and water inlet valve block 8a; Upper water control valve sheet comprises the second moving valve plate 9b and fixed valve plate 8b.Epicoele base sheath 2 is exactly the assemblying body of epicoele base 28 and epicoele cover 29, is upper control water cavity 23 above epicoele base, and it is exactly epicoele cover 29 that epicoele base upwards extends the tubular part surrounding upper control water cavity 23.The transmission wet part that current are sent to upper control water cavity from lower control water cavity comprises lower control water annex 6 and epicoele base 28.
Embodiment 1
The present embodiment central authorities water service pipe is located in water port, lower control water annex 6 side 65.Epicoele base comprises epicoele base body 28 and base annex 3.Epicoele base sheath main body 2 is exactly the assemblying body parts of epicoele base body 28 and epicoele cover 29.Epicoele base sheath comprises epicoele base sheath main body 2 and base annex 3.
Lower control water annex end face is provided with hollow water shutoff step 63, lower control water annex bottom surface is provided with underside side inlet and central inlet, the central water service pipe 61 through hollow water shutoff step be provided with in lower control water annex, between hollow water shutoff step 63 with central water service pipe 61, space communicates with underside side inlet and forms side waterway 65, and in central water service pipe 61, space communicates with central inlet and forms described central waterway 62.
Faucet valve core as shown in Figure 1, comprises valve casing cover 1, epicoele base sheath main body 2, base annex 3, valve core base 4, spool top cover 5, lower control water annex 6, upper control water annex 7, water inlet valve block 8a, fixed valve plate 8b, the first moving valve plate 9a, the second moving valve plate 9b.
Epicoele base body 28 establishes the water port, side 27 and central water port 26 run through, described central water port is positioned at its central home position in epicoele base body bottom surface, and water port, side and central water port are enclosed in intracavity space by the sealed step 22 of epicoele base body bottom surface.The waterway 33 run through established by base annex 3, sealed step 31 and end face seal groove 32, waterway 33 arrives end face through below sealed step 31, flow out from base accessory side face, waterway 33 and sealed step 31 center hole communicate, end face seal groove 32 surrounds waterway 33 and sealed step 31, and base annex waterway 33 communicates water port, epicoele base body 28 side 27, the central water port 26 of base annex sealed step 31 center hole docking epicoele base body 28 bottom surface central authorities home position.Waterway 33 and sealed step 31 center hole are enclosed in intracavity space by the anchor ring 20 that is tightly connected of base annex bottom surface.
Set by lower control water annex 6, hollow water shutoff step 63 overlaps 1 central hole 13 through valve casing, and its end face 64 contacts the water shutoff at valve casing cover middle part every platform 15 bottom surface, and hollow water shutoff step 63 is a little through the anchor ring 20 that is tightly connected.Meanwhile, its central water service pipe through base annex 3 sealed step 31 center hole, enters the central water port 26 of epicoele base body 28 bottom surface central authorities home position a little, and central water service pipe is tightly connected central water port 26.Base annex 3 is placed in valve casing cover base cavity 11, and the water shutoff at its bottom surface contact valve casing cover middle part every platform 15 end face, and compresses water shutoff seal groove 14 inner seal liner set by the platform 15.Base annex 3 bottom surface, the water shutoff of valve casing cover forms sealing between platform 15 and hollow water shutoff step 63 side of lower control water annex 6, and hollow water shutoff step 63 is tightly connected base annex 3 bottom surface waterway 33, makes current can not enter in lower control water cavity 12 and base cavity 11; Sealed step 22 set by epicoele base body 28 bottom surface compresses base annex 3 end face seal groove 32 inner seal liner, makes to be formed between epicoele base body 28 and base annex junction plane to seal.Simultaneously, base annex 3 end face sealed step 31 contacts epicoele base body bottom surface central authorities water port 26 end face 25, and compress Sealing set by its end face sealing water channel 24, and formed between lower control water annex central authorities water service pipe 61 and seal, make hot and cold water seal isolation, flow into the corresponding water port, side 27 of epicoele base body and central water port 26 respectively, when valve casing grip assembly is compacted, valve casing puts end face 16 and contacts with epicoele base sheath agent localization step 21.
Base annex 3 water port 33, water port, epicoele base body side 27 and lower control water accessory side waterway 65 communicate, water conservancy diversion cold water; Lower control water annex central authorities' waterway 62 and epicoele base body central authorities water port 26 communicate, water conservancy diversion hot water.
Cold water, after water inlet valve block 8a and the first cold water port of moving valve plate 9a suit adjustment, enters base annex water port 33 by lower control water accessory side waterway 65, then enters water port, epicoele base body side 27, water cavity is controlled in arrival; Hot water, after water inlet valve block 8a and the first hot water port of moving valve plate 9a suit adjustment, by lower control water annex central authorities waterway 62, enters epicoele base body central authorities water port 26, water cavity is controlled in arrival.Again after upper water control valve sheet regulates, cold and hot mixing water flows out spool.
Embodiment 2
The bottom surface of the present embodiment lower valve core base is provided with underside side water intake and central water inlet; Through the central water service pipe 41 of hollow water shutoff step, described valve core base bottom surface central water inlet is connected in one end, and the other end connects epicoele base central authorities water port, and centre is successively through lower water control valve sheet and lower control water annex; In described central water service pipe 41, space communicates with described central water inlet and forms central waterway 42, the underside side water intake of valve core base communicates with epicoele base side water port, is directly sent to epicoele base from valve core base central water inlet by central water service pipe current.
Lower control water annex end face is provided with hollow water shutoff step 63, lower control water annex bottom surface is provided with underside side inlet and the central inlet 62 through central water service pipe 41, between hollow water shutoff step 63 with central water service pipe 41, space communicates with underside side inlet and forms side waterway 65, and in central water service pipe 41, space forms described central waterway 42.
Faucet valve core, comprises valve casing cover 1, epicoele base sheath 2, valve core base 4, spool top cover 5, lower control water annex 6, upper control water annex 7, water inlet valve block 8a, fixed valve plate 8b, the first moving valve plate 9a, the second moving valve plate 9b.
Epicoele base is provided with the water port, side 27 and central water port 26 run through, and described central water port is positioned at its central home position at epicoele base end face, and water port, side and central water port are enclosed in intracavity space by the anchor ring 20 that is tightly connected of epicoele base end face.
Set by lower control water annex 6, hollow water shutoff step 63 overlaps 1 central hole 13 through valve casing, and its end face 64 contacts the water shutoff at valve casing cover middle part every platform 15 bottom surface, and hollow water shutoff step 63 to be tightly connected anchor ring 20 through epicoele base end face a little.The central water service pipe 41 of valve core base 4 is successively through water inlet valve block 8a center hole 8a2, first moving valve plate 9a center hole 9a2, the central inlet 62 of lower control water annex 6, enter the central water port 26 of epicoele base end face central authorities home position a little, central water service pipe 41 is tightly connected central water port 26.Epicoele base is placed in valve casing cover base cavity 11, and its anchor ring 20 that is tightly connected contacts the water shutoff at valve casing cover middle part every platform 15 end face, and compresses water shutoff seal groove 14 inner seal liner set by the platform 15.Be tightly connected anchor ring 20, the water shutoff of valve casing cover forms sealing between platform 15 and hollow water shutoff step 63 side of lower control water annex 6, hollow water shutoff step 63 is tightly connected anchor ring 20 intracavity space, connect epicoele base side water port 27, make current can not enter in lower control water cavity 12 and base cavity 11; Establish Sealing in epicoele base seal groove 24, and through lower control water annex central water service pipe 41 formed and seal, make hot and cold water seal isolation, flow into the corresponding water port, side 27 of epicoele base and central water port 26 respectively.When valve casing grip assembly is compacted, valve casing puts end face 16 and contacts with epicoele base sheath positioning step 21.
Valve core base 4 side water intake, the water port, side of water inlet valve block 8a and the first moving valve plate 9a, epicoele base side waterway 27 and lower control water accessory side waterway 65 communicate, water conservancy diversion cold water; Communicate through the central waterway 42 of lower control water annex central authorities water service pipe and epicoele base central authorities water port 26, water conservancy diversion hot water.
Cold water enters valve core base 4 side water intake 43, after water inlet valve block 8a and the first water port, moving valve plate 9a side suit adjustment, enters epicoele base side water port 27, water cavity is controlled in arrival by lower control water accessory side waterway 65; Hot water, through central waterway 42, enters epicoele base central authorities water port 26, then after upper water control valve sheet regulates, enters control water cavity.Hot and cold water, after upper control water cavity mixing, flows out spool.
This embodiment side water intake, water port, side and side inlet can be symmetrical two, also can only have one-sided one.
Central water service pipe also can be located at epicoele base end face or lower control water annex by this embodiment.
Embodiment 3
The present embodiment introduces a kind of lower control water annex 6, it is characterized in that lower control water annex establishes cold and hot water service pipe 63 and central water service pipe 61 two sections.Two waterways establishing hot and cold water to isolate in cold and hot water service pipe, cold and hot water service pipe 63 outer wall side opening is located in the outlet of one of them side waterway 65, and another one waterway leads to the central waterway 62 of central water service pipe 61.Central authorities' water service pipe outer wall establishes endoporus Sealing, central authorities water service pipe 61 be tightly connected epicoele base central authorities water port 26, make hot and cold water seal isolation, flow into the corresponding water port, side 27 of epicoele base and central water port 26 respectively, and cold and hot water service pipe side opening lower end outer wall establishes endoporus Sealing, cold and hot water service pipe 63 is tightly connected anchor ring 20 intracavity space that is tightly connected of epicoele base end face, and current can not be entered in lower control water cavity 12 and base cavity 11.In the cold and hot water service pipe of lower control water annex, cold and hot waterway communicates respectively in its underside side inlet and central inlet.
Claims (6)
1. a faucet valve core, the valve casing grip assembly of control water cavity and upper control water cavity is set in comprising, transmission water mechanism current being sent to upper control water cavity from lower control water cavity is provided with in valve casing grip assembly, described transmission water mechanism comprises lower control water annex and epicoele base, it is characterized in that: described lower control water annex is provided with central waterway and side waterway, described epicoele base is provided with the central water port that communicate corresponding to side waterway central waterway and water port, side respectively; Described lower control water annex end face is provided with hollow water shutoff step, described lower control water annex bottom surface is provided with underside side inlet and central inlet, described central waterway is by central inlet and be arranged in hollow water shutoff step, and described hollow water shutoff step and space between central waterway communicate with underside side inlet and form described side waterway.
2. faucet valve core according to claim 1, it is characterized in that: also comprise base annex, described base annex is provided with the waterway run through, the sealed step being provided with center hole and end face seal groove, the waterway of base annex arrives end face and passes after below sealed step from base accessory side face pass-out, the waterway of base annex and the center hole of sealed step communicate, and end face seal groove surrounds waterway and the sealed step of base annex.
3. faucet valve core according to claim 1, it is characterized in that: also comprise valve core base, described valve core base is provided with central water service pipe, and the bottom surface of valve core base is provided with underside side water intake and central water inlet, described lower control water annex end face is provided with hollow water shutoff step, central water inlet is connected in one end of described central water service pipe, the other end of central authorities' water service pipe connects epicoele base central authorities water port through the hollow water shutoff step of lower water control valve sheet and lower control water annex successively, between hollow water shutoff step and central water service pipe, space forms described side waterway, in described central water service pipe, space communicates with central water inlet and forms described central waterway.
4. the faucet valve core according to claim 1 or 2 or 3, it is characterized in that: water port, described side and central water port are run through and be arranged on epicoele base, described central water port is positioned at its central home position at epicoele base end face, and water port, side and central water port are enclosed in intracavity space by the anchor ring that is tightly connected of epicoele base end face.
5. faucet valve core according to claim 4, it is characterized in that: described epicoele base comprises epicoele base body and base annex, sealed step set by epicoele base body bottom surface compresses base annex end face seal groove inner seal liner, make to be formed between epicoele base body and base annex junction plane to seal, simultaneously, base annex end face sealed step contact epicoele base body bottom surface central authorities water port end face, and compress Sealing set by its end face sealing water channel, base annex waterway communicates water port, epicoele base body side, the central water port of base annex sealed step center hole docking epicoele base body bottom surface central authorities home position.
6. the lower control water annex of a faucet valve core, comprise body, it is characterized in that: the end face of described body is provided with hollow water shutoff step, the bottom surface of described body is provided with underside side inlet and central inlet, is provided with the central waterway of central inlet and hollow water shutoff step and space between central waterway and communicates with underside side inlet the side waterway formed in described hollow water shutoff step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310267636.8A CN103398211B (en) | 2013-06-28 | 2013-06-28 | A kind of faucet valve core and lower control water annex thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310267636.8A CN103398211B (en) | 2013-06-28 | 2013-06-28 | A kind of faucet valve core and lower control water annex thereof |
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| CN103398211A CN103398211A (en) | 2013-11-20 |
| CN103398211B true CN103398211B (en) | 2016-01-27 |
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| CN201310267636.8A Expired - Fee Related CN103398211B (en) | 2013-06-28 | 2013-06-28 | A kind of faucet valve core and lower control water annex thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104964059A (en) * | 2015-05-04 | 2015-10-07 | 刘红胜 | Universal ceramic valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0100062A2 (en) * | 1982-07-24 | 1984-02-08 | FRIEDRICH GROHE ARMATURENFABRIK GmbH & CO | Single-lever mixing valve |
| CN2190476Y (en) * | 1994-01-31 | 1995-03-01 | 苏远升 | Mixer for cold and hot water |
| CN201301983Y (en) * | 2008-08-12 | 2009-09-02 | 邹建仁 | A knob-type valve core |
| CN101639130A (en) * | 2008-08-03 | 2010-02-03 | 邹建仁 | Knob valve core |
| JP2012001274A (en) * | 2010-05-17 | 2012-01-05 | Shizuo Oguchi | Hot water cooling and mixing plug for water servers |
| JP2012132484A (en) * | 2010-12-20 | 2012-07-12 | Kvk Corp | Single lever faucet |
-
2013
- 2013-06-28 CN CN201310267636.8A patent/CN103398211B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0100062A2 (en) * | 1982-07-24 | 1984-02-08 | FRIEDRICH GROHE ARMATURENFABRIK GmbH & CO | Single-lever mixing valve |
| CN2190476Y (en) * | 1994-01-31 | 1995-03-01 | 苏远升 | Mixer for cold and hot water |
| CN101639130A (en) * | 2008-08-03 | 2010-02-03 | 邹建仁 | Knob valve core |
| CN201301983Y (en) * | 2008-08-12 | 2009-09-02 | 邹建仁 | A knob-type valve core |
| JP2012001274A (en) * | 2010-05-17 | 2012-01-05 | Shizuo Oguchi | Hot water cooling and mixing plug for water servers |
| JP2012132484A (en) * | 2010-12-20 | 2012-07-12 | Kvk Corp | Single lever faucet |
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| CN103398211A (en) | 2013-11-20 |
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