CN104180024A - Drain valve and water heater adopting same - Google Patents
Drain valve and water heater adopting same Download PDFInfo
- Publication number
- CN104180024A CN104180024A CN201410382216.9A CN201410382216A CN104180024A CN 104180024 A CN104180024 A CN 104180024A CN 201410382216 A CN201410382216 A CN 201410382216A CN 104180024 A CN104180024 A CN 104180024A
- Authority
- CN
- China
- Prior art keywords
- spool
- drain valve
- valve body
- water
- water outlet
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/087—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
- F16K11/0873—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle
Abstract
The invention discloses a drain valve and a water heater adopting the same. The drain valve comprises a valve body in which a water outlet and a plurality of water inlets are formed in, a valve core which is arranged in the valve body and is capable of rotating from the position enabling the water inlets to be communicated with the water outlet and the position enabling the water inlets and the water outlet to be closed, and an actuator which is arranged on the valve body, is in transmission connection with the valve core, and controls the valve core to rotate among the opening position and the closing position. The drain valve can perform drainage for a plurality of inner containers, and has the advantages of simplifying the structure of a water heater, increasing the production efficiency of the water heater, reducing water heater cost, and the like.
Description
Technical field
The present invention relates to electrical equipment manufacturing technology field, in particular to a kind of drain valve and the water heater with described drain valve.
Background technique
The water heater in correlation technique with many inner bags, emptying for each inner bag is carried out, need on each inner bag, drain valve be set, cause complex structure, manufacturing efficiency is low, cost is high.
Summary of the invention
The present invention is intended to solve at least to a certain extent one of above-mentioned technical problem in correlation technique.For this reason, the present invention proposes a kind of drain valve, and this drain valve can carry out draining to many inner bags, has the advantages such as cost that can simplify the structure of water heater, the manufacturing efficiency that improves water heater, reduction water heater.
The present invention also proposes a kind of water heater with described drain valve.
For achieving the above object, embodiment according to a first aspect of the invention proposes a kind of drain valve, and described drain valve comprises: valve body, and described valve body is provided with water outlet and a plurality of water intake; Spool, described spool is located in described valve body rotationally being communicated with the open position of a plurality of described water intakes and described water outlet and closing between a plurality of described water intakes and the closed position of described water outlet; Final controlling element, described final controlling element is located on described valve body and with described spool and is in transmission connection, and described final controlling element is controlled described spool and is rotated between described open position and described closed position.
According to the drain valve of the embodiment of the present invention, can carry out draining to many inner bags, there is the advantages such as cost that can simplify the structure of water heater, the manufacturing efficiency that improves water heater, reduction water heater.
In addition, drain valve according to the above embodiment of the present invention can also have following additional technical characteristics:
According to one embodiment of present invention, in described spool, there is exhalant canal and a plurality of intake tunnel, described spool when described open position described in exhalant canal be communicated with described water outlet and a plurality of described intake tunnel is communicated with a plurality of described water intakes respectively, described spool when described closed position described in exhalant canal be communicated with described water outlet and a plurality of described intake tunnel staggers with a plurality of described water intakes respectively.
According to one embodiment of present invention, described drain valve also comprises the plug being located in described water outlet, and described plug stretches in the exhalant canal of described spool and described plug is provided with the water outlet through hole being communicated with described exhalant canal.
According to one embodiment of present invention, described plug is threaded with the water outlet of described valve body, is provided with some the first seal rings between described plug and described valve body, is provided with some the second seal rings between described plug and described spool.
According to one embodiment of present invention, described water intake is two, the central axes of two described water intakes and perpendicular to the central axis of described water outlet, described spool is spherical, described spool is provided with two described intake tunnels, the central axes of two described intake tunnels and perpendicular to the central axis of described exhalant canal.
According to one embodiment of present invention, between described spool and described valve body, be provided with sealing gasket, and be further provided with the 3rd seal ring between described sealing gasket and described valve body.
According to one embodiment of present invention, described valve body comprises: body, and the part in described water outlet and a plurality of described water intake is formed on described body, and described spool is located in described body, and described final controlling element is arranged on described body; Bonnet, described bonnet is removably mounted on described body, and the another part in a plurality of described water intakes is formed on described bonnet.
According to one embodiment of present invention, described valve body is provided with a plurality of intake pipes that are communicated with a plurality of described water intakes respectively and the outlet pipe being communicated with described water outlet, on a plurality of described intake pipes and described outlet pipe, is equipped with outside thread.
According to one embodiment of present invention, described final controlling element is positioned at described valve body outside and is in transmission connection by valve rod and described spool, is provided with some the 4th seal rings between described valve rod and described valve body.
According to one embodiment of present invention, described valve body is provided with flange, and described final controlling element is arranged on described flange.
Embodiment according to a second aspect of the invention proposes a kind of water heater, and described water heater comprises: a plurality of inner bags, and each inner bag is provided with drain opening; Drain valve, described drain valve is according to the drain valve described in any one in claim 1-10, a plurality of water intakes of described drain valve are communicated with a plurality of described drain opening respectively.
According to the water heater of the embodiment of the present invention, have simple in structure, manufacturing efficiency is high, low cost and other advantages.
Accompanying drawing explanation
Fig. 1 is according to the perspective view of the drain valve of the embodiment of the present invention.
Fig. 2 is according to the sectional view of the drain valve of the embodiment of the present invention.
Reference character: drain valve 10, valve body 100, body 110, outlet pipe 111, water outlet 112, bonnet 120, intake pipe 121, water intake 122, spool 200, exhalant canal 210, intake tunnel 220, sealing gasket 230, the 3rd seal ring 240, final controlling element 300, plug 400, water outlet through hole 410, the first seal ring 420, the second seal ring 430, valve rod 500, the 4th seal ring 510, flange 600.
Embodiment
Describe embodiments of the invention below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment who is described with reference to the drawings, be exemplary, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
Below with reference to accompanying drawing, describe according to the drain valve 10 of the embodiment of the present invention.
As depicted in figs. 1 and 2, according to the drain valve 10 of the embodiment of the present invention, comprise valve body 100, spool 200 and final controlling element 300.
Valve body 100 is provided with water outlet 112 and a plurality of water intake 122.Spool 200 is located at rotationally in valve body 100 between open position and closed position.Spool 200 is communicated with a plurality of water intakes 122 and water outlet 112 (as shown in Figure 2) when described open position, and the water that flows into drain valve 10 by a plurality of water intakes 122 can be discharged by water outlet 112.Spool 200 is closed a plurality of water intakes 122 and water outlet 112 when described closed position, and the water that is entered drain valve 10 by a plurality of water intakes 122 cannot be discharged from water outlet 112.Final controlling element 300 is located on valve body 100, and final controlling element 300 is in transmission connection with spool 200, and final controlling element 300 is controlled spool 200 and rotated between described open position and described closed position.
According to the drain valve 10 of the embodiment of the present invention, by a plurality of water intakes 122 and water outlet 112 are set on valve body 100, and rotating spool 200 is set valve body 100 is interior, can control spools 200 by the final controlling element 300 being in transmission connection with spool 200 rotates, thereby open and close a plurality of water intakes 122 and water outlet 112, realize the draining to many water routes.For example, according to the drain valve 10 of the embodiment of the present invention, be applied on water heater, can realize the draining of many inner bags, drain valve needn't be set separately on each inner bag, not only can simplify thus the structure of water heater, and can improve the manufacturing efficiency of water heater, reduce the cost of water heater.Therefore, according to the drain valve 10 of the embodiment of the present invention, can carry out draining to many inner bags, there is the advantages such as cost that can simplify the structure of water heater, the manufacturing efficiency that improves water heater, reduction water heater.
Below with reference to accompanying drawing, describe according to the drain valve 10 of the specific embodiment of the invention.
In specific embodiments more of the present invention, as depicted in figs. 1 and 2, according to the drain valve 10 of the embodiment of the present invention, comprise valve body 100, spool 200 and final controlling element 300.
In spool 200, there is exhalant canal 210 and a plurality of intake tunnel 220.Spool 200 exhalant canal 210 when described open position is communicated with water outlet 112 and a plurality of intake tunnel 220 is communicated with a plurality of water intakes 122 respectively.Spool 200 exhalant canal 210 when described closed position is communicated with water outlet 112 and a plurality of intake tunnel 220 staggers with a plurality of water intakes 122 respectively.Can realize thus spool 200 draining when described open position, and when described closed position, stop draining.
In concrete examples more of the present invention, as described in Figure 2, drain valve 10 also comprises plug 400.Plug 400 is located in the water outlet 112 of valve body 100, and the inner of plug 400 is stretched in the exhalant canal 210 of spool 200, and plug 400 is provided with the water outlet through hole 410 being communicated with exhalant canal 210.Spool 200 is when described open position, and the water that is entered drain valve 10 by a plurality of water intakes 122 is discharged from the water outlet through hole 410 of plug 400.By plug 400 is set, can improve the sealing at water outlet 112 places, be convenient to the connection of pipeline, while guaranteeing draining, water can not spill from water outlet 112 and the joint of pipeline.
Further, as shown in Figure 2, the inner circle wall of water outlet 112 is provided with internal thread, and the outer circumferential face of the outer end of plug 400 is provided with outside thread, and the outer end of plug 400 is threaded in water outlet 112 places of valve body 100.Between plug 400 and valve body 100, be provided with some the first seal rings 420, between plug 400 and spool 200, be provided with some the second seal rings 430.For example, between plug 400 and valve body 100, be provided with two the first seal rings 420 that are arranged along the axially spaced-apart of plug 400, between plug 400 and spool 200, be provided with two the second seal rings 430 that are arranged along the axially spaced-apart of plug 400.Can form Multi-level sealing structure thus, further improve the sealing at water outlet 112 places.
Wherein, as shown in Figure 2, the corresponding annular groove that offers a plurality of circumferential extensions along plug 400 on the outer circumferential face of plug 400, the first seal ring 420 and the second seal ring 430 can be assemblied in respectively in a plurality of annular grooves.
In specific embodiments more of the present invention, as depicted in figs. 1 and 2, water outlet 112 can be towards top, and water intake 122 can be two and difference substantially horizontal towards the opposite.The central axes of two water intakes 122 and perpendicular to the central axis of water outlet 112.Spool 200 is spherical, and spool 200 is provided with two horizontally extending intake tunnels 220, and exhalant canal 210 vertically extends, the central axes of two intake tunnels 220 and perpendicular to the central axis of exhalant canal 210.Can realize the emptying of dual-bottle type water heater thus, be convenient to the clean of water heater.
Alternatively, between spool 200 and valve body 100, be provided with sealing gasket 230, and be further provided with the 3rd seal ring 240 between sealing gasket 230 and valve body 100.Not only can improve thus the sealing between spool 200 and valve body 100, and can utilize 230 pairs of spools 200 of sealing gasket to position, improve the stability of spool 200 in valve body 100, for example, on the internal face of valve body 100, can be provided with for supporting the step of sealing gasket 230.
Wherein, for the ease of the assembling of the 3rd seal ring 240, on the internal face of valve body 100, can be provided with groove, the 3rd seal ring 240 can be assemblied in this groove.
In concrete examples more of the present invention, as shown in Figure 2, valve body 100 comprises body 110 and bonnet 120.Bonnet 120 is removably mounted on valve body 100.For example, on valve body 100, can be provided with internal thread, on bonnet 120, can be provided with outside thread, bonnet 120 is threaded on valve body 100.
Wherein, water outlet 112 and a water intake 122 are formed on body 110, and another water intake 122 is formed on bonnet 120.Spool 200 is located in body 110, and final controlling element 300 is arranged on body 110.
During assembling, the inner members such as spool 200, sealing gasket 230 and the 3rd seal ring 240 are first packed in body 110, then bonnet 120 is installed, utilize bonnet 120 that sealing gasket 230 and the 3rd seal ring 240 are pressed on spool 200.The installation and removal of drain valve 10 can be facilitated thus, and sealing can be guaranteed.
Alternatively, as depicted in figs. 1 and 2, in order to facilitate being connected of drain valve 10 and pipeline, the intake pipe 121 that body 110 is provided with and corresponding water intake 122 is communicated with and the outlet pipe 111 being communicated with water outlet 112, bonnet 120 is provided with the intake pipe 121 with 122 connections of corresponding water intake.On intake pipe 121 and outlet pipe 111, be equipped with outside thread, outside pipeline can be threaded on intake pipe 121 and outlet pipe 111.
In specific embodiments more of the present invention, as shown in Figure 2, final controlling element 300 is positioned at valve body 100 outsides, and final controlling element 300 is in transmission connection by valve rod 500 and spool 200.Particularly, spool 200, through body 110, can be provided with keyway on spool 200, on valve rod 500, can be provided with the key being engaged in keyway, prevents from relatively rotating between valve rod 500 and spool 200, and realization is in transmission connection.Final controlling element 300 rotates between described open position and described closed position by actuate valve stem 500 band movable valve plugs 200.Wherein, the rotation angle of spool 200 can be 90 °.
Further, in order to improve the sealing of valve rod 500 and body 110, between valve rod 500 and valve body 100, be provided with some the 4th seal rings 510.As shown in Figure 2, the outer circumferential face of valve rod 500 is provided with two annular grooves along the circumferential extension of valve rod 500, and two annular grooves are arranged along the axially spaced-apart of valve rod 500, are equipped with the 4th seal ring 510 in each annular groove.
Alternatively, as shown in Figure 2, the lower end of body 110 is provided with flange 600, and final controlling element 300 is arranged on flange 600 by threaded fastener (as screw or bolt).Thus can be so that the installation of final controlling element 300 and valve body 100.
Below with reference to accompanying drawing, describe according to the water heater of the embodiment of the present invention.According to the water heater of the embodiment of the present invention, comprise a plurality of inner bag (not shown)s and drain valve.
Each inner bag is provided with drain opening.Described drain valve is drain valve 10 according to the above embodiment of the present invention, and a plurality of water intakes 122 of drain valve 10 are communicated with a plurality of described drain opening respectively.
According to the water heater of the embodiment of the present invention, by utilizing drain valve 10 according to the above embodiment of the present invention, have simple in structure, manufacturing efficiency is high, low cost and other advantages.
According to other formations of the water heater of the embodiment of the present invention and operation, be all known for those of ordinary skills, be not described in detail here.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " a plurality of " is at least two, for example two, and three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or be integral; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but contact by the other feature between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiments or example.In addition, those skilled in the art can engage the different embodiments that describe in this specification or example and combine.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, modification, replacement and modification.
Claims (11)
1. a drain valve, is characterized in that, comprising:
Valve body, described valve body is provided with water outlet and a plurality of water intake;
Spool, described spool is located in described valve body rotationally being communicated with the open position of a plurality of described water intakes and described water outlet and closing between a plurality of described water intakes and the closed position of described water outlet;
Final controlling element, described final controlling element is located on described valve body and with described spool and is in transmission connection, and described final controlling element is controlled described spool and is rotated between described open position and described closed position.
2. drain valve according to claim 1, it is characterized in that, in described spool, there is exhalant canal and a plurality of intake tunnel, described spool when described open position described in exhalant canal be communicated with described water outlet and a plurality of described intake tunnel is communicated with a plurality of described water intakes respectively, described spool when described closed position described in exhalant canal be communicated with described water outlet and a plurality of described intake tunnel staggers with a plurality of described water intakes respectively.
3. drain valve according to claim 2, is characterized in that, also comprises the plug being located in described water outlet, and described plug stretches in the exhalant canal of described spool and described plug is provided with the water outlet through hole being communicated with described exhalant canal.
4. drain valve according to claim 3, is characterized in that, described plug is threaded with the water outlet of described valve body, is provided with some the first seal rings between described plug and described valve body, is provided with some the second seal rings between described plug and described spool.
5. drain valve according to claim 2, it is characterized in that, described water intake is two, the central axes of two described water intakes and perpendicular to the central axis of described water outlet, described spool is spherical, described spool is provided with two described intake tunnels, the central axes of two described intake tunnels and perpendicular to the central axis of described exhalant canal.
6. drain valve according to claim 1, is characterized in that, between described spool and described valve body, is provided with sealing gasket, and is further provided with the 3rd seal ring between described sealing gasket and described valve body.
7. drain valve according to claim 1, is characterized in that, described valve body comprises:
Body, the part in described water outlet and a plurality of described water intake is formed on described body, and described spool is located in described body, and described final controlling element is arranged on described body;
Bonnet, described bonnet is removably mounted on described body, and the another part in a plurality of described water intakes is formed on described bonnet.
8. drain valve according to claim 1, is characterized in that, described valve body is provided with a plurality of intake pipes that are communicated with a plurality of described water intakes respectively and the outlet pipe being communicated with described water outlet, on a plurality of described intake pipes and described outlet pipe, is equipped with outside thread.
9. drain valve according to claim 1, is characterized in that, described final controlling element is positioned at described valve body outside and is in transmission connection by valve rod and described spool, is provided with some the 4th seal rings between described valve rod and described valve body.
10. drain valve according to claim 1, is characterized in that, described valve body is provided with flange, and described final controlling element is arranged on described flange.
11. 1 kinds of water heaters, is characterized in that, comprising:
A plurality of inner bags, each inner bag is provided with drain opening;
Drain valve, described drain valve is according to the drain valve described in any one in claim 1-10, a plurality of water intakes of described drain valve are communicated with a plurality of described drain opening respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410382216.9A CN104180024A (en) | 2014-08-05 | 2014-08-05 | Drain valve and water heater adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410382216.9A CN104180024A (en) | 2014-08-05 | 2014-08-05 | Drain valve and water heater adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104180024A true CN104180024A (en) | 2014-12-03 |
Family
ID=51961272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410382216.9A Pending CN104180024A (en) | 2014-08-05 | 2014-08-05 | Drain valve and water heater adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104180024A (en) |
Citations (11)
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| US3431932A (en) * | 1963-02-01 | 1969-03-11 | Automatic Sprinkler Corp | Valve assembly for breathing apparatus |
| CN85205499U (en) * | 1985-11-28 | 1987-06-24 | 邬佑靖 | Manual hot and cold water mixing valve |
| CN2113453U (en) * | 1992-01-09 | 1992-08-19 | 青岛琴岛海尔股份有限公司微波电器厂 | Single handle multipurpose cold/hot water valve |
| CN2204898Y (en) * | 1994-06-29 | 1995-08-09 | 鹿乔 | Proportional flow controlling valve |
| CN2333856Y (en) * | 1998-04-03 | 1999-08-18 | 青岛市家用电器研究所 | Water mixing valve fitting with domestic water heater |
| WO2003093707A2 (en) * | 2002-05-01 | 2003-11-13 | Dahl Brothers Canada Limited | Shut-off valve |
| CN2898503Y (en) * | 2005-08-29 | 2007-05-09 | 高志宽 | Three-way intermediate spherical valve |
| CN102537422A (en) * | 2011-12-13 | 2012-07-04 | 广东万家乐燃气具有限公司 | Water proportion valve with automatic drainage and control system and automatic adjustment method thereof |
| CN202914809U (en) * | 2012-05-16 | 2013-05-01 | 珠海市舒丽玛温控卫浴设备有限公司 | Single-handle double control constant temperature faucet applicable to solar water heater |
| CN204239817U (en) * | 2014-08-05 | 2015-04-01 | 芜湖美的厨卫电器制造有限公司 | Drain valve and the water heater with it |
-
2014
- 2014-08-05 CN CN201410382216.9A patent/CN104180024A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3431932A (en) * | 1963-02-01 | 1969-03-11 | Automatic Sprinkler Corp | Valve assembly for breathing apparatus |
| US3388799A (en) * | 1965-06-24 | 1968-06-18 | Jesse T Rymer | Filter for fluids |
| CN85205499U (en) * | 1985-11-28 | 1987-06-24 | 邬佑靖 | Manual hot and cold water mixing valve |
| CN2113453U (en) * | 1992-01-09 | 1992-08-19 | 青岛琴岛海尔股份有限公司微波电器厂 | Single handle multipurpose cold/hot water valve |
| CN2204898Y (en) * | 1994-06-29 | 1995-08-09 | 鹿乔 | Proportional flow controlling valve |
| CN2333856Y (en) * | 1998-04-03 | 1999-08-18 | 青岛市家用电器研究所 | Water mixing valve fitting with domestic water heater |
| WO2003093707A2 (en) * | 2002-05-01 | 2003-11-13 | Dahl Brothers Canada Limited | Shut-off valve |
| CN2898503Y (en) * | 2005-08-29 | 2007-05-09 | 高志宽 | Three-way intermediate spherical valve |
| CN102537422A (en) * | 2011-12-13 | 2012-07-04 | 广东万家乐燃气具有限公司 | Water proportion valve with automatic drainage and control system and automatic adjustment method thereof |
| CN202914809U (en) * | 2012-05-16 | 2013-05-01 | 珠海市舒丽玛温控卫浴设备有限公司 | Single-handle double control constant temperature faucet applicable to solar water heater |
| CN204239817U (en) * | 2014-08-05 | 2015-04-01 | 芜湖美的厨卫电器制造有限公司 | Drain valve and the water heater with it |
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Application publication date: 20141203 |
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| RJ01 | Rejection of invention patent application after publication |