CN102840349A - Disc valve - Google Patents
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- CN102840349A CN102840349A CN2012102108308A CN201210210830A CN102840349A CN 102840349 A CN102840349 A CN 102840349A CN 2012102108308 A CN2012102108308 A CN 2012102108308A CN 201210210830 A CN201210210830 A CN 201210210830A CN 102840349 A CN102840349 A CN 102840349A
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Abstract
The invention provides a disc valve in no need of lubricating components such as lubricating grease. The disc valve is not necessarily made of materials with self lubrication, and has good sliding properties. The disc valve is composed of a first disc member and a second disc member, wherein at least one disc member has a drain hole and the disc members are made of ceramic materials and relatively move in a slide contact state to communicate and interrupt the drain hole. The disc valve is characterized in that: the sum value of the center roughness depth (Rk) of the sliding surface of the first disc member in slide contact with the second disc member which is specified by the Japanese industrial standard JIS B 0671 and the decreased wave crest height (Rpk) is below 15nm, and when in use, the lubricant is not supplied between the first disc member and the second disc member.
Description
Technical field
The present invention relates to a kind of plate valve and utilize the water tap of this plate valve.
Background technique
In recent years, as the valve of water tap and utilize ceramic disk (for example the spy of Japan opens clear 56-134671 communique (patent documentation 1)) widely.Because pottery is excellent with the mechanical property of compared with metal hardness, intensity etc., thereby attempts to utilize its characteristic, improves the endurance quality of plate valve.In the actual utilization, in order to reduce pottery friction each other, the lubricated composition of lubricating grease etc. is supplied with in beginning widely on the slip surface of valve.
But, there is following problem, because use all the year round, the lubricated composition of lubricating grease etc. is withered, reducing friction becomes insufficient, causes sliding properties to worsen.And, also there is following problem, because the kind of lubricated composition and by cause between the spreadable life rotten or solidify, cause the sliding properties deterioration because of adhering to foreign matter.
In order to tackle above-mentioned problem, the spy of Japan opens flat 02-256973 communique (patent documentation 2) and proposes that a kind of technology is arranged, and on slip surface, implements machining, improves sliding properties.According to this communique; In plate valve; Through making at least one the face that slips in 2 tensioning spools become the projecting shape that central part is convex, and can on the basis that keeps sealing, improve the sliding properties of each valve core chamber, not make with lubricator just to reduce to operate torque.Specifically, make one to slip face and become the projecting shape that the central part projecting height is the convex surface shape of 1～3 μ m, making another slip face is below the flatness 1 μ m.And making the arithmetic average roughness Ra that respectively slips face is below the 0.1 μ m.
And the spy of Japan opens flat 07-190208 communique (patent documentation 3) and proposes to have a kind of technology, through constituting plate valve with the silicon carbide-carbon composite material with self-lubricity, improves the sliding properties of plate valve.In this communique, can obtain good sliding properties through can clearly utilize material with the contrast of Comparative Examples with self-lubricity.In the Comparative Examples of this communique; Movable disc, fixed disc all use the aluminium oxide of purity 89%, and the flatness of fixed side disk is 0.9 μ m, and arithmetic average roughness Ra is 0.1 μ m; The flatness of movable disc is 0.6 μ m, and arithmetic average roughness Ra is 0.1 μ m.In endurance test, the operation torque sharply increases when under the condition of uncoated silicon class lubricating grease, carrying out, and just becomes and can't operate for 50,000 times.
Patent documentation 1: the spy of Japan opens clear 56-134671 communique
Patent documentation 2: the spy of Japan opens flat 02-256973 communique
Patent documentation 3: the spy of Japan opens flat 07-190208 communique
Summary of the invention
The present inventor has obtained following opinion specifically; Slip surface through making disc element satisfies specified conditions; And do not need the lubricated composition of lubricating grease etc., nor must be the material with self-lubricity, just can realize having the plate valve of good sliding properties.The present invention is based on above-mentioned opinion.
Thereby, the object of the present invention is to provide a kind of plate valve, do not need the lubricated composition of lubricating grease etc., and needn't be material, and have good sliding capability with self-lubricity.
And; Plate valve of the present invention is to be made up of first disc element and second disc element that form by stupalith that at least one, have the discharge orifice; Through being relatively moved with the state that slips, said first disc element and second disc element carry out the connection of said discharge orifice, the plate valve of blocking; It is characterized in that; The aggregate value of the center roughness degree of depth (Rk) of the JIS B of JIS 0671 defined of the slip surface that slips with second disc element of said first disc element and the crest height (Rpk) that reduces is below the 15nm, and supply of lubricant between said first disc element and second disc element not when using.
Description of drawings
Fig. 1 is the plan view of the related disc element of the expression embodiment of the invention.
Fig. 2 is the stereogram of the internal structure of the related single-handle water-tap of the expression embodiment of the invention.
Fig. 3 is the plotted curve of the variation of the related operation torque of the expression embodiment of the invention.
Symbol description
The 1-movable disc; 11-movable disc discharge orifice; The 2-fixed disc; 21-guttation discharge orifice; 22-water supply discharge orifice; 23-heat supply current water hole; The 3-operating lever; The 4-sliding bar.
Embodiment
The necessary condition that plate valve of the present invention is stated after first and second disc element that constitutes plate valve satisfies, mean with the present invention under the field in by classification or be interpreted as plate valve, and the identical plate valve of the plate valve of being understood from now on.
The concrete formation of plate valve of the present invention be illustrated in illustrated later, but plate valve of the present invention is made up of two disc elements at least.Usually; Disc element is made up of two disks that are called as movable disc and fixed disc at least; First disc element and second disc element can be any one of movable disc and fixed disc among the present invention, but preferably making first disc element is movable disc.
In the present invention; Make this first disc element slip surface the JIS B of JIS 0671 defined the center roughness degree of depth (core roughness depth) (Rk) and the crest height that reduces (reduced peak height) aggregate value (Rpk) be below the 15nm, to be preferably below the 10nm.The Rk of the slip surface of first disc element through making plate valve and the aggregate value of Rpk are below the above-mentioned numerical value, even do not use material with self-lubricity, supply of lubricant not, also can bring into play good sliding capability.
In the present invention with the slip surface of first disc element of the center roughness degree of depth (Rk) of the JIS B of JIS 0671 defined and crest height (Rpk) the regulation plate valve that reduces.The arithmetic average roughness Ra that use the JIS B of JIS 0671 defined when usually, surperficial flatness being estimated more.But according to the resulting opinion of present inventor, compare with this Ra, the aggregate value of above-mentioned Rk and Rpk is more relevantly to represent the index of sliding properties of the disc element of plate valve.The aggregate value of Rk and Rpk is according to the surface roughness curve, to the absolute value of its average line to the deviation of measuring curve add up to, average value.
The relation of the sliding properties of the meaning of the index of the aggregate value of this Rk and Rpk and the disc element of plate valve is also indeterminate, but can consider as follows.That is, in the present invention, the Rk of the first disc element slip surface of plate valve and the aggregate value of Rpk are below the 15nm.Though can't directly contrast aggregate value and the Ra of this Rk and Rpk, can be used as the approximate value of trend.But; For the such surface of first disc element of plate valve of the present invention with high surface smoothing property; Ra receives the influence in the hole (hole) that is present in the surface significantly; Even but find to exist this hole (hole), it is also less to the influence that adaptation or sliding properties give.That is, the preferred in the past Ra that considers is the degree below the 0.1 μ m, and just the degree below the 100nm is still found can't correctly judge the protuberance state that sliding capability is influenced with Ra in the field below the 15nm of the surface smoothing property higher than it.And, according to the disc element that possesses surface,, also can obtain bringing into play the such remarkable result of good sliding capability even do not use material with self-lubricity, supply of lubricant not with this high flatness.Thereby, even for example low and under the situation that has hole on the slip surface, also can be in the above-mentioned scope through the aggregate value that makes Rk and Rpk in the density of material, and the very good sliding capability of performance, therefore, the present invention is also more favourable aspect the material selection.
In the present invention, with the center roughness degree of depth (Rk) of the JIS B of JIS 0671 defined, the crest height (Rpk) that reduces, the trough degree of depth (reduced valley depth) that the reduces center roughness degree of depth (Rk) and the crest height (Rpk) that reduces in (Rvk) as index.Thus, can remove the influence of the hole that causes because of density of material, and correctly judge the protuberance state that sliding capability is influenced.
Preferred mode according to the present invention, the arithmetic average roughness Ra of the slip surface of second disc element is preferably below the 0.5 μ m, is more preferably below the 0.3 μ m, preferably is preferably below the 0.2 μ m.When the surface smoothing property of second disc element is in this scope, can obtain plate valve whole good sliding capability and excellent sealing performance.
Other preferred mode according to the present invention, preferred first disc element, second disc element are for having the projecting shape of protuberance on the central part of slip surface.Through the slip surface that makes disc element is this shape, can control area of contact, can on the basis that keeps good sealing property, further improve sliding capability.
In the present invention, when making slip surface be projecting shape, for flatness, the upper limit is preferably below the 1.0 μ m, is more preferably below the 0.5 μ m.Can bring into play good water pressure resistance property through flatness is in this scope, reduce the possibility that liquid spills from slip surface.Here said flatness is meant the fluctuating with respect to the face of datum plane, and the FUJINONF601 miniature laser interferometer of for example making with Fuji Photo Film Co., Ltd. is measured.
Material as forming disc element of the present invention can utilize the non-oxidized substance class pottery of silicon carbide, silicon nitride etc. and the oxide-based stupalith and the composite material thereof of composite material or aluminium oxide, zirconium oxide (zirconium oxide that comprises complete stabilityization, partially stabilizedization) etc. thereof aptly.Silicon carbide is from the viewpoint of superperformance and preferable material, and aluminium oxide is from the viewpoint of manufacture cost and preferable material.
In disc element of the present invention, can in above-mentioned pottery, add various auxiliary elements.For example; Opening the 2005-206460 communique as the spy of Japan puts down in writing; Through in aluminium oxide, adding the various auxiliary elements of sodium, magnesium, calcium, silicon, cobalt, nickel etc.; Kibushic lay), the clay mineral of frog order clay, allophane, canbyite, pyrophyllite, mica group, smectite group, vermiculite, chlorite group, palygorskite, kaolinite, nacrite, dickite, galapectite etc. or add white clay, bentonite clay, organic carbon clay (kieselguhr:, can promote the minimizing of internal void and the raising of low-temperature sintering property etc.At this moment, the auxiliary element of interpolation is preferably more than the following 0 weight % of 10 weight %, especially is preferably more than the following 4 weight % of 6 weight %.
And, also preferably use aluminium oxide as primary coil, through the interpolation zirconium oxide, improve the material of abrasion resistance properties.At this moment, as the zirconium oxide that is added, the preferred stabilized zirconia from the water resistence aspect, the especially preferred partially stabilizedization zirconium oxide that uses.As the zirconic amount of being added, be preferably more than the following 2.5 weight % of 10 weight %, especially be preferably about 5 weight %.The material that adds as being used for partially stabilizedization of zirconium oxide can utilize MgO, CaO, Y aptly
2O
3Deng, from the preferred Y of the viewpoint of intensity
2O
3Be preferably below the above 8mol% of 2mol% as adding quantity, be preferably about 3mol%.
In the moulding of disc element of the present invention, can utilize the forming method of known ceramics aptly.For example, make ceramic powder forming materials, the method that can consider to carry out the normal pressure moulding through metal mold, cast, injection method etc.
As the production method of disc element of the present invention, can utilize well-known production method aptly.Preferably normal pressure-sintered from the viewpoint of manufacturing efficiency, but also can wait and make through gas pressure sintering, hot pressing, HIP sintering (HIP).
Improve flatness through the slip surface by the disc element of said method manufacturing being carried out surface Machining with well-known method.For example; In order in grinding process, to obtain desirable surface roughness;, process after burning till body and processing with free abrasive particle or fixed grain, finally to obtain desirable surface roughness and surface configuration, precision through mechanical lapping with adamantine free abrasive particle.
The ideograph of the disc element of plate valve of the present invention shown in Fig. 1.Movable disc 1 shown in Fig. 1 (a), fixed disc 2 shown in Fig. 1 (b).The slip surface of movable disc 1 is formed with movable disc discharge orifice 11 near the portion of centre therein.And, the heat supply current water hole 23 that on the slip surface of fixed disc 2, be connected with the guttation discharge orifice 21 that is connected with the guttation mouth of water tap, the water supply discharge orifice 22 that is connected with water pipe respectively, is connected with the heat supply water pipe.
Under the water flowing state, through movable disc 1 is slided, and make movable disc discharge orifice 11 be in the state that is communicated with water supply discharge orifice 22, heat supply current water hole 23.At this moment, from water supply discharge orifice 22, the hot and cold water supplied with of the heat supply current water hole 23 movable disc discharge orifice 11 of flowing through, and flow into guttation discharge orifice 21, constitute the structure of water flowing thus.
And; Fascinate along about the paper direction through making movable disc 1; And movable disc discharge orifice 11 is changed with the area that is communicated with in water supply discharge orifice 22, heat supply current water hole 23, and thus, the ratio of mixture of the variable hot and cold water that spues; Through only being communicated with one of them, hot water or cold water can also only spue.At this; Show the employed disc element of hot and cold water combustion taps; But as long as disc element be fixed disc, movable disc one of them on the discharge orifice is set; And be communicated with, interdict through relatively moving, then can be form arbitrarily, can use the shape of well-known disc element aptly.
The disc element of assembling by said method processing through well-known member and well-known method becomes plate valve of the present invention.And, through this plate valve being packed into water tap and can be obtained the handle water tap with well-known method.As long as the handle water tap is the water tap that single water tap, hot and cold water combustion taps etc. use plate valve, then not special the qualification.
As having used plate valve of the present invention, disc element also can be for more than two.For example, as shown in Figure 2, be configured as follows, be provided with fixed disc 2 ', with fixed disc 2,2 ' clip movable disc 1.
Plate valve of the present invention and material have nothing to do and have good sliding.Specifically, for plate valve of the present invention, when on slip surface, having hole, also can be in and bring into play good sliding capability in the predetermined range through the flatness that makes surperficial protuberance and center even density of material is low.
Embodiment
Below, the embodiment and the Comparative Examples of the plate valve through applying the present invention to single ansa hot and cold water combustion taps describe in further detail, but the present invention are not defined in these embodiments.
In silicon carbide powder, cooperate carbon (C), the boron carbide (B4C) of established amount, and then the moulding of adding established amount obtains slip with tackiness agent as sintering adjuvant.The slip that so obtains is carried out spray drying and becomes particle, it is carried out impact briquetting after, through the normal pressure-sintered carborundum sintered body that obtains.With fixed grain the slide part of resulting carborundum sintered body is carried out grinding, carry out mechanical lapping processing thereafter, obtain fixed disc.At this moment, in mechanical lapping processing, process with adamantine free abrasive particle.Movable disc with the basis of the same step of fixed disc on, the mechanical lapping processing of appending with thinner adamantine free abrasive particle is to obtain the better surface roughness of precision.
The flatness after the processing of resulting disc element of having utilized FUJINON F601 miniature laser interferometer measurement that Fuji Photo Film Co., Ltd. makes.Its result, the flatness of movable disc slip surface are 0.27 μ m, and the flatness of fixed disc slip surface is 0.26 μ m.And, utilize surface roughness measurement device (the surface roughometer SE3500 of little slope research institute of Co., Ltd.) to measure surface roughness.Its result, the aggregate value of the center roughness degree of depth (Rk) of the JIS B of JIS 0671 defined of movable disc slip surface and the crest height (Rpk) that reduces is 4.7nm, the arithmetic average roughness of fixed disc slip surface (Ra) is 0.16 μ m.
Through the above-mentioned disc element of packing into, and obtain single ansa hot and cold water combustion taps as shown in Figure 2.In addition, in Fig. 2, single ansa hot and cold water combustion taps is made up of movable disc 1, fixed disc 2, operating lever 3 and sliding bar 4.It is following structure, and the user moves up and down through making operating lever 3, and makes the sliding bar 4 that is connected with operating lever 3 movable, and movable disc 1 is relatively slided with respect to fixed disc 2 together therewith, and the discharge orifice that is provided with is separately thus connected and water flowing.
In resulting single ansa hot and cold water combustion taps; Thereby make the guttation amount all keep 8L/min and handle is moved up and down having carried out endurance test at cold water side, hot water side; The result is as shown in Figure 3, even surpass the result of the operation torque that also can be maintained good 100,000 times.
Likewise the body that burns till that obtains equally with embodiment 1 is processed the back and obtained fixed disc and movable disc with embodiment 1.Utilize the slip surface of having measured above-mentioned disc element with embodiment's 1 same method.Its result, the flatness of movable disc slip surface are 0.26 μ m, and the flatness of fixed disc slip surface is 0.28 μ m.And for surface roughness, the Rk of movable disc slip surface and the aggregate value of Rpk are 3.8nm, and the Ra of fixed disc slip surface is 0.14 μ m.
Through with the embodiment 1 above-mentioned disc element of likewise packing into, and obtain single ansa hot and cold water combustion taps.In resulting single ansa hot and cold water combustion taps, thereby make the guttation amount all keep 8L/min and handle is moved up and down having carried out endurance test at cold water side, hot water side.Its result is as shown in Figure 3, even surpass the result of the operation torque that also can be maintained good 100,000 times.
Comparative Examples 1
Carry out grinding with fixed grain pair and the slide part that burns till body that embodiment 1 obtains equally, obtain movable disc.And, with the basis of the same step of movable disc on, carry out mechanical lapping processing with adamantine free abrasive particle, obtain fixed disc.
After the processing, utilization and embodiment's 1 same method have been measured their slip surface.Its result, the flatness of movable disc slip surface are 0.53 μ m, and the flatness of fixed disc slip surface is 0.25 μ m.And for surface roughness, the Rk of movable disc slip surface and the aggregate value of Rpk are 122.5nm, and the Ra of fixed disc slip surface is 0.15 μ m.
Through with the embodiment 1 above-mentioned disc element of likewise packing into, and obtain single ansa hot and cold water combustion taps.In resulting single ansa hot and cold water combustion taps; Thereby make the guttation amount all keep 8L/min and handle is moved up and down having carried out endurance test at cold water side, hot water side; The result is as shown in Figure 3, and the operation torque sharply increases, and it is bad and become and can't operate that sealing just takes place for 30,000 times.
Comparative Examples 2
Carry out grinding with fixed grain pair and the slide part that burns till body that embodiment 1 obtains equally, carry out mechanical lapping processing with adamantine free abrasive particle thereafter, obtain fixed disc and movable disc thus.
After the processing, utilization and embodiment's 1 same method have been measured their slip surface.Its result, the flatness of movable disc slip surface are 0.21 μ m, and the flatness of fixed disc slip surface is 0.26 μ m.And for surface roughness, the Rk of movable disc slip surface and the aggregate value of Rpk are 46.7nm, and the Ra of fixed disc slip surface is 0.16 μ m.
Through with the embodiment 1 above-mentioned disc element of likewise packing into, and obtain single ansa hot and cold water combustion taps.In resulting single ansa hot and cold water combustion taps; Thereby make the guttation amount all keep 8L/min and handle is moved up and down having carried out endurance test at cold water side, hot water side; The result is as shown in Figure 3, and the operation torque sharply increases, and it is bad and become and can't operate that sealing just takes place for 50,000 times.
Comparative Examples 3
Carry out grinding with free abrasive particle pair and the slide part that burns till body that embodiment 1 obtains equally, carry out mechanical lapping processing with adamantine free abrasive particle thereafter, obtain fixed disc and movable disc thus.
After the processing, utilization and embodiment's 1 same method have been measured their slip surface.Its result, the flatness of movable disc slip surface are 0.22 μ m, and the flatness of fixed disc slip surface is 0.25 μ m.And for surface roughness, the Rk of movable disc slip surface and the aggregate value of Rpk are 38.6nm, and the Ra of fixed disc slip surface is 0.16 μ m.
Through with the embodiment 1 above-mentioned disc element of likewise packing into, and obtain single ansa hot and cold water combustion taps.In resulting single ansa hot and cold water combustion taps; Thereby make the guttation amount all keep 8L/min and handle is moved up and down having carried out endurance test at cold water side, hot water side; The result is as shown in Figure 3, and the operation torque sharply increases, and it is bad and become and can't operate that sealing just takes place for 70,000 times.
(clear and electrician makes: (eastern Cao makes: TZ-3Y-E), and then the moulding of interpolation established amount obtains slip to the partially stabilizedization zirconium oxide of interpolation 5% AL160SG) with tackiness agent at easy-sintering property aluminium oxide.The slip that so obtains is carried out spray drying and becomes particle, it is carried out impact briquetting after, burn till through atmosphere and to obtain being added with zirconic alumina sintered body.With fixed grain the slip surface of resulting sintering body is carried out grinding, carry out mechanical lapping processing thereafter, obtain fixed disc.At this moment, in mechanical lapping processing, process with adamantine free abrasive particle.Movable disc with the basis of the same step of fixed disc on, the mechanical lapping processing of appending with thinner adamantine free abrasive particle is to obtain the better surface roughness of precision.
After the processing, utilization and embodiment's 1 same method have been measured their slip surface.Its result, the flatness of movable disc slip surface are 0.3 μ m, and the flatness of fixed disc slip surface is 0.25 μ m.And for surface roughness, the Rk of movable disc slip surface and the aggregate value of Rpk are 12nm, and the Ra of fixed disc slip surface is 0.15 μ m.
Through with the embodiment 1 above-mentioned disc element of likewise packing into, and obtain single ansa hot and cold water combustion taps.In resulting single ansa hot and cold water combustion taps, thereby make the guttation amount all keep 8L/min and handle is moved up and down having carried out endurance test at cold water side, hot water side.Its result also can keep good operation torque even surpass 100,000 times.
Be mixed with by MgO, CaO, SiO
2, and Fe
2O
3The moulding of adding established amount in the 96% aluminium oxide mixed-powder of forming that is mingled with composition obtains slip with tackiness agent.The slip that so obtains is carried out spray drying and becomes particle, it is carried out impact briquetting after, burn till through atmosphere and to obtain 96% alumina sintered body.With fixed grain the slip surface of resulting sintering body is carried out grinding, carry out mechanical lapping processing thereafter, obtain fixed disc.At this moment, in mechanical lapping processing, process with adamantine free abrasive particle.Movable disc with the basis of the same step of fixed disc on, the mechanical lapping processing of appending with thinner adamantine free abrasive particle is to obtain the better surface roughness of precision.
After the processing, utilization and embodiment's 1 same method have been measured their slip surface.Its result, the flatness of movable disc slip surface are 0.32 μ m, and the flatness of fixed disc slip surface is 0.28 μ m.And for surface roughness, the Rk of movable disc slip surface and the aggregate value of Rpk are 15nm, and the Ra of fixed disc slip surface is 0.14 μ m.
Through with the embodiment 1 above-mentioned disc element of likewise packing into, and obtain single ansa hot and cold water combustion taps.In resulting single ansa hot and cold water combustion taps, thereby make the guttation amount all keep 8L/min and handle is moved up and down having carried out endurance test at cold water side, hot water side.Its result also can keep good operation torque even surpass 100,000 times.
Table 1
Claims (8)
1. plate valve; Be to constitute by first disc element and second disc element that form by stupalith that at least one, have the discharge orifice; Through being relatively moved with the state that slips, said first disc element and second disc element carry out the connection of said discharge orifice, the plate valve of blocking; It is characterized in that
The aggregate value of the center roughness degree of depth Rk of the JIS B of JIS 0671 defined of the slip surface that slips with second disc element of said first disc element and the crest height Rpk that reduces is below the 15nm, and supply of lubricant between said first disc element and second disc element not when using.
2. plate valve according to claim 1 is characterized in that, the aggregate value of the center roughness degree of depth Rk of the JIS B of JIS 0671 defined of the slip surface of said first disc element and the crest height Rpk that reduces is below the 10nm.
3. plate valve according to claim 1 and 2 is characterized in that, the arithmetic average roughness Ra of the slip surface that slips with first disc element of said second disc element is below the 0.2 μ m.
4. according to any described plate valve in the claim 1 to 3, it is characterized in that the slip surface of said first disc element and/or said second disc element is following shape, having at central part highly is the protuberance below the 0.5 μ m.
5. according to any described plate valve in the claim 1 to 4, it is characterized in that the slip surface of said first disc element and/or said second disc element is formed by aluminium oxide.
6. according to any described plate valve in the claim 1 to 5, it is characterized in that the slip surface of said first disc element is formed by silicon carbide.
7. according to any described plate valve in the claim 1 to 6, it is characterized in that said first disc element is formed by the stupalith that does not have self-lubricity.
8. handle type water tap is characterized in that possessing:
Any described plate valve in the claim 1 to 7;
Lever handle relatively moves said plate valve under the state that slips;
And tap main body, have the water supply road that links with the discharge orifice of said plate valve,
Supply of lubricant between said first disc element and second disc element not during use.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011136130 | 2011-06-20 | ||
| JP2011-136130 | 2011-06-20 | ||
| JP2012-044942 | 2012-03-01 | ||
| JP2012044942A JP5990934B2 (en) | 2011-06-20 | 2012-03-01 | Disc valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102840349A true CN102840349A (en) | 2012-12-26 |
| CN102840349B CN102840349B (en) | 2016-06-22 |
Family
ID=47367974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210210830.8A Active CN102840349B (en) | 2011-06-20 | 2012-06-20 | Disc valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102840349B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109997085A (en) * | 2016-11-29 | 2019-07-09 | 京瓷株式会社 | Watch shell |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56134671A (en) * | 1980-03-21 | 1981-10-21 | Kyocera Corp | Faucet valve |
| JPH02256973A (en) * | 1989-03-28 | 1990-10-17 | Kyocera Corp | Ceramic disk valve |
| JPH07190208A (en) * | 1993-12-27 | 1995-07-28 | Kao Corp | Disc valve |
| CN2327854Y (en) * | 1997-08-14 | 1999-07-07 | 杨东林 | Ceramic sealer of tap |
| CN2411391Y (en) * | 1999-01-08 | 2000-12-20 | 张腾广 | Ceramic wafer with self-protection function |
-
2012
- 2012-06-20 CN CN201210210830.8A patent/CN102840349B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56134671A (en) * | 1980-03-21 | 1981-10-21 | Kyocera Corp | Faucet valve |
| JPH02256973A (en) * | 1989-03-28 | 1990-10-17 | Kyocera Corp | Ceramic disk valve |
| JPH07190208A (en) * | 1993-12-27 | 1995-07-28 | Kao Corp | Disc valve |
| CN2327854Y (en) * | 1997-08-14 | 1999-07-07 | 杨东林 | Ceramic sealer of tap |
| CN2411391Y (en) * | 1999-01-08 | 2000-12-20 | 张腾广 | Ceramic wafer with self-protection function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109997085A (en) * | 2016-11-29 | 2019-07-09 | 京瓷株式会社 | Watch shell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102840349B (en) | 2016-06-22 |
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