CN110886870A - Fluid control device - Google Patents
Fluid control device Download PDFInfo
- Publication number
- CN110886870A CN110886870A CN201910842208.0A CN201910842208A CN110886870A CN 110886870 A CN110886870 A CN 110886870A CN 201910842208 A CN201910842208 A CN 201910842208A CN 110886870 A CN110886870 A CN 110886870A
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- CN
- China
- Prior art keywords
- hot water
- water
- valve
- passage
- side opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
- G05D16/2026—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means
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- 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
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
-
- 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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
- G05D7/0641—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means using a plurality of throttling means
Abstract
The invention provides a fluid control device which can realize the low manufacturing cost of a hot water adjusting valve. The fluid control device (1) is provided with a hot water passage (3) for guiding hot water to a cold/hot water regulating valve (2), a water passage (4) for guiding water to the hot water regulating valve (2), a hot water side on-off valve (5) for freely preventing the supply of hot water to the hot water regulating valve (2) through the hot water passage (3), and a water side on-off valve (6) for freely preventing the supply of water to the hot water regulating valve (2) through the water passage (4). The fluid control device (1) is provided with a connecting part (7) and a piston (8) which is arranged on the connecting part (7) in a free sliding way, a water side on-off valve (6) is connected with the piston (8), when a hot water side on-off valve (5) is opened, the piston (8) moves to the water passage (4) side, the water side on-off valve (6) is opened, when the hot water side on-off valve (5) is closed, the piston (8) moves to the hot water passage (3) side, and the water side on-off valve (6) is closed.
Description
Technical Field
The present invention relates to a fluid control device including a hot water adjustment valve that can freely adjust a mixing ratio of hot water and water, and a water passage that guides water to the hot water adjustment valve.
Background
Conventionally, there is known a fluid control device provided in a bathroom or the like, the fluid control device including a hot water adjustment valve capable of freely adjusting a mixing ratio of hot water and water, a faucet provided downstream of the hot water adjustment valve, and a faucet.
The fluid control device is described in, for example, japanese patent application laid-open No. 2010-96296.
Disclosure of Invention
Problems to be solved by the invention
In the conventional fluid control device, since the hydrant is disposed downstream of the hot water adjustment valve, the water pressure is applied to the hot water adjustment valve even when the hydrant is closed. Therefore, the hot water adjustment valve is required to have strength enough to withstand the water pressure, which hinders the reduction in manufacturing cost of the hot water adjustment valve.
In view of the above problems, an object of the present invention is to provide a fluid control device that can reduce the manufacturing cost of a hot water adjustment valve.
Means for solving the problems
[1] In order to achieve the above object, a fluid control device according to the present invention (for example, the fluid control device 1 of the embodiment, the same applies to the following) includes:
a hot water passage (for example, a hot water passage 3 according to an embodiment, the same applies hereinafter) for guiding hot water to a hot water adjustment valve (for example, a hot water adjustment valve 2 according to an embodiment, the same applies hereinafter) capable of freely adjusting a ratio of the hot water to water;
a water passage (for example, the water passage 4 of the embodiment, the same applies to the following) for guiding the water to the hot water adjustment valve;
a hot water side opening/closing valve (for example, a hot water side opening/closing valve 5 in the embodiment, the same applies hereinafter) capable of freely blocking the hot water supplied to the hot water adjustment valve through the hot water passage; and a water-side opening/closing valve (for example, the water-side opening/closing valve 6 of the embodiment, the same applies to the following) capable of freely preventing the water from being supplied to the hot water adjustment valve through the water passage.
According to the present invention, since the hot water side opening/closing valve and the water side opening/closing valve are provided on the upstream side of the hot water adjustment valve, the pressure of the hot water is not applied to the hot water adjustment valve when the hot water side opening/closing valve and the water side opening/closing valve are closed. Therefore, compared to the case where the pressure is applied for a long time under the influence of the hot water pressure as in the related art, it is possible to provide a fluid control device in which durability required for the hot water regulating valve is low and the manufacturing cost of the hot water regulating valve can be suppressed.
[2] In the present invention, it is preferable that the fluid control device includes: a connection portion (for example, the connection portion 7 of the embodiment, the same applies hereinafter) that connects the hot water passage and the water passage on the upstream side of the hot water adjustment valve; and
a piston (for example, the piston 8 of the embodiment, the same applies hereinafter) provided slidably and liquid-tightly in the connecting portion so as to be able to prevent the hot water from contacting the water,
the water-side opening and closing valve is connected to the piston,
when the hot water side opening/closing valve is opened to supply the hot water from the hot water passage to the hot water adjustment valve, the piston moves toward the water passage side in the connection portion due to the pressure of the hot water in the hot water passage, and the water side opening/closing valve connected to the piston is opened,
when the hot water side opening/closing valve is closed to prevent hot water from being supplied from the hot water passage to the hot water adjustment valve, the piston moves to a hot water passage side in the connection portion due to the pressure of the water in the water passage, and the water side opening/closing valve connected to the piston is closed.
According to the present invention, the water side opening/closing valve can be opened and closed in conjunction with the opening/closing of the hot water side opening/closing valve. Thus, the user can operate the two on-off valves by operating one valve without opening and closing the two valves, i.e., the hot water side on-off valve and the water side on-off valve, thereby facilitating the opening and closing operation.
[3] In the present invention, it is preferable that the diameter of at least a portion of the connecting portion where the piston slides is set to a 1 st diameter Φ a, the diameter of a portion of the water passage closed by the water-side opening/closing valve is set to a 2 nd diameter Φ B, the pressure of the hot water in the hot water passage is set to Ph1, the pressure of the water in the water passage upstream of the water-side opening/closing valve is set to Pc1, the pressure of the water in the water passage downstream of the water-side opening/closing valve is set to Pc2, and the 1 st diameter a and the 2 nd diameter Φ B are set so that the following expression (1) is established when the water is passed.
Ph1×φA＝Pc1(φA-φB)+Pc2×φB…(1)
[4] In the fluid control device according to the present invention, the hot water adjustment valve is connected to the hot water passage and downstream of the water passage. According to the present invention, it is possible to provide a fluid control device that can suppress the manufacturing cost of a hot water adjustment valve while achieving low durability required for the hot water adjustment valve, as compared to a case where pressure is applied for a long time under the influence of the pressure of hot water as in the related art.
Drawings
Fig. 1 is an explanatory diagram showing a first embodiment of a fluid control device according to the present invention.
Fig. 2 is an explanatory diagram showing a state in which the hot water side on-off valve is closed in the fluid control device of the first embodiment.
Fig. 3 is an explanatory diagram showing a second embodiment of the fluid control device of the present invention.
Fig. 4 is an explanatory diagram illustrating a conventional fluid control device.
[ description of symbols ]
1 a fluid control device; 2 hot water regulating valve; 3 hot water path; 4 water passage; 5 hot water side opening and closing valve; 6 water side opening and closing valve; 7 a connecting part; 8, a piston; 9 connecting rods; 11, water embolism; 12 check valve
Detailed Description
[ first embodiment ]
A fluid control device 1 according to a first embodiment of the present invention will be described with reference to fig. 1 and 2. The fluid control device 1 of the first embodiment includes a hot water control valve 2, a hot water passage 3 for guiding hot water supplied from a hot water supplier (not shown) or the like to the hot water control valve 2, a water passage 4 for guiding water from a water pipe (not shown) to the hot water control valve 2, a hot water side opening/closing valve 5 capable of freely blocking the hot water supplied to the hot water control valve 2 via the hot water passage 3, and a water side opening/closing valve 6 capable of freely blocking the water supplied to the hot water control valve 2 via the water passage 4.
The hot water regulating valve 2 moves a valve body (not shown) using a temperature sensitive actuator (not shown) whose elastic force changes according to a change in the temperature of the mixed water of hot water flowing inside, thereby changing the ratio of the opening area of a hot water inlet (not shown) to the opening area of a water flow inlet (not shown) and maintaining the temperature of the mixed water at a predetermined temperature.
A tubular connecting portion 7 that connects the hot water passage 3 and the water passage 4 on the upstream side of the hot water adjustment valve 2 is provided between the hot water passage 3 and the water passage 4. In the connecting portion 7, a piston 8 is provided to be slidable in the connecting portion 7 in a liquid-tight manner so as to prevent contact between water and hot water in the connecting portion 7. The water-side opening/closing valve 6 and the piston 8 are connected by a connecting rod 9.
Here, the diameter of at least the portion of the connecting portion 7 where the piston 8 slides is defined as the 1 st diameter Φ a, the diameter of the portion of the water passage 4 closed by the water-side opening/closing valve 6 is defined as the 2 nd diameter Φ B, the pressure of the hot water in the hot water passage 3 is defined as Ph1, the pressure of the water in the water passage 4 on the upstream side of the water-side opening/closing valve 6 is defined as Pc1, and the pressure of the water in the water passage 4 on the downstream side of the water-side opening/closing valve 6 is defined as Pc 2.
The 1 st diameter Φ a and the 2 nd diameter Φ B are set so that the following expression (1) is established when water is supplied (when hot water and water are supplied to the hot water adjustment valve 2).
Ph1×φA＝Pc1(φA-φB)+Pc2×φB…(1)。
Since the values of the pressure Ph1 of the hot water in the hot water passage 3 and the pressure Pc1 of the water in the water passage 4 vary according to a house or an apartment, specific values of the 1 st diameter Φ a and the 2 nd diameter Φ B are appropriately set according to Ph1 and Pc 1. Although the water-side opening/closing valve 6 itself is larger than the 2 nd diameter Φ B, the portion radially outward of the 2 nd diameter Φ B is offset by the pressure of Pc2 applied from the vertical direction in fig. 1, and therefore the size of the water-side opening/closing valve 6 does not affect the expression (1). In the drawings, black arrows indicate the flow of hot water, white arrows indicate the flow of water, and shaded arrows indicate the flow of mixed water of hot water and water.
As shown in fig. 1, when the hot water side opening/closing valve 5 is opened and hot water is supplied from the hot water passage 3 to the hot water adjustment valve 2, the piston 8 is slid and moved toward the water passage 4 by the pressure Ph1 of the hot water in the hot water passage 3, and the water side opening/closing valve 6 connected to the piston 8 via the connecting rod 9 is opened.
In the present embodiment, for example, when the pressure Ph1 of the hot water flowing through the hot water passage 3 becomes higher, the piston 8 is more strongly pressed, and therefore the water side opening/closing valve 6 is also more widely opened. Therefore, when the pressure Ph1 of the hot water increases, the pressure Pc2 of the water on the downstream side of the water-side opening/closing valve 6 in the water passage 4 also increases. That is, the fluid control device 1 of the present embodiment also has a hot water pressure equalizing function of adjusting the balance between the pressure Ph1 of the hot water supplied to the hot water adjustment valve 2 and the pressure Pc2 of the water.
As shown in fig. 2, when the hot water side opening/closing valve 5 is closed to stop the supply of hot water from the hot water passage 3 to the hot water adjustment valve 2, the piston 8 moves toward the hot water passage 3 side in the connecting portion 7 due to the pressure Pc1 of water in the water passage 4, and the water side opening/closing valve 6 connected to the piston 8 is closed by the force of (Φ a- Φ B) × Pc 1.
According to the fluid control device 1 of the present embodiment, since the hot water side opening/closing valve 5 and the water side opening/closing valve 6 are provided on the upstream side of the hot water adjustment valve 2, when the hot water side opening/closing valve 5 and the water side opening/closing valve 6 are closed, the hot water does not apply pressure to the hot water adjustment valve 2. Therefore, compared to the case where the pressure is applied for a long time under the influence of the pressure of the hot water as in the related art, the fluid control device 1 in which the durability required for the hot water adjustment valve 2 is low and the manufacturing cost of the hot water adjustment valve 2 can be suppressed can be provided.
In the present embodiment, when the hot water side opening/closing valve 5 is opened, the water side opening/closing valve 6 is also opened in conjunction with this opening, and when the hot water side opening/closing valve 5 is closed, the water side opening/closing valve 6 is also closed in conjunction with this closing. Thus, the user can simultaneously operate the two on-off valves 5 and 6 by operating only one valve without opening and closing the two valves, i.e., the hot water side on-off valve 5 and the water side on-off valve 6, and the opening and closing operations are facilitated.
In addition, the pressure of water and the pressure of hot water are generally high, and when a water plug is provided downstream of the hot water adjustment valve 2 as in the conventional device, a check valve is provided to prevent backflow of water to the hot water passage 3. However, according to the fluid control device 1 of the present embodiment, since the water stopper is not provided downstream of the hot water mixing valve 2 and is always opened, and water does not flow backward to the hot water passage 3, it is not necessary to provide a check valve as in the conventional case, and the structure can be simplified.
[ second embodiment ]
Fig. 3 shows a fluid control apparatus 1 according to a second embodiment of the present invention. The fluid control device 1 according to the second embodiment is not provided with the connection portion 7, the piston 8, and the connection rod 9 according to the first embodiment. The water side opening/closing valve 6 is configured as follows: the operation is the same as the first embodiment except that the opening and closing operation is required independently without being interlocked with the hot water side opening and closing valve 5. The same components are denoted by the same reference numerals, and descriptions thereof are omitted.
According to the fluid control device 1 of the present embodiment, since the hot water side on-off valve 5 and the water side on-off valve 6 are provided on the upstream side of the hot water adjustment valve 2, when the hot water side on-off valve 5 and the water side on-off valve 6 are closed, as shown in the pressure-resistant range in fig. 3, the pressure of the hot water is applied only to the hot water side on-off valve 5 and the water side on-off valve 6, and the pressure of the hot water is not applied to the hot water adjustment valve 2 when the on-off valves 5 and 6 are in the closed state, as in the fluid control device 1 of the first. Therefore, as compared with the case where the pressure is applied for a long time under the influence of the pressure of the hot water as in the conventional device, the fluid control device 1 in which the durability required for the hot water adjustment valve 2 is low and the manufacturing cost of the hot water adjustment valve 2 can be suppressed can be provided.
In addition, according to the fluid control device 1 of the present embodiment, since the hot water side opening/closing valve 5 is provided in the hot water passage 3, the water does not flow back into the hot water passage 3, and it is not necessary to provide a check valve as in the conventional case, and thus the configuration can be simplified.
[ comparative example ]
Fig. 4 shows a fluid control device 1' as a comparative example. In the fluid control device 1 ' of the comparative example, the water plugs 11(5 ', 6 ') are provided downstream of the hot water adjustment valve 2. Therefore, as shown in fig. 4, the hot water adjustment valve 2 is included in the pressure-resistant range, and the hot water adjustment valve 2 needs to have a strength enough to withstand the water pressure, and therefore, there is a limit to the reduction in cost of the hot water adjustment valve 2.
Further, in the case where the water plug 11 is provided downstream of the hot water adjustment valve 2 ' as in the present comparative example, it is necessary to provide a check valve 12 for preventing the water in the water passage 4 ' from flowing back to the hot water passage 3 ' or preventing the hot water in the hot water passage 3 ' from flowing back to the water passage 4 '.
Claims (4)
1. A fluid control device is characterized by comprising:
a hot water passage for guiding hot water to a hot water regulating valve capable of freely regulating the ratio of the hot water to the water;
a water passage for guiding the water to the hot water adjustment valve;
a hot water side opening/closing valve capable of freely preventing the hot water from being supplied to the hot water regulating valve through the hot water passage; and
and a water side opening/closing valve capable of freely preventing the water from being supplied to the hot water regulating valve through the water passage.
2. The fluid control device according to claim 1, characterized by comprising:
a connection portion that connects the hot water passage and the water passage on an upstream side of the hot water adjustment valve; and
a piston provided in the connecting portion so as to be slidable in the connecting portion and liquid-tight so as to prevent the hot water from contacting the water,
the water-side opening and closing valve is connected to the piston,
when the hot water side opening/closing valve is opened to supply the hot water from the hot water passage to the hot water adjustment valve, the piston moves toward the water passage side in the connection portion due to the pressure of the hot water in the hot water passage, and the water side opening/closing valve connected to the piston is opened,
when the hot water side opening/closing valve is closed to prevent the hot water from being supplied from the hot water passage to the hot water adjustment valve, the piston moves to a hot water passage side in the connection portion due to the pressure of the water in the water passage, and the water side opening/closing valve connected to the piston is closed.
3. The fluid control device according to claim 2,
a diameter of at least a portion of the connecting portion where the piston slides is set to a 1 st diameter Φ a, a diameter of a portion of the water passage that is closed by the water-side opening/closing valve is set to a 2 nd diameter Φ B, a pressure of the hot water in the hot water passage is set to Ph1, a pressure of the water in the water passage on an upstream side of the water-side opening/closing valve is set to Pc1, a pressure of the water in the water passage on a downstream side of the water-side opening/closing valve is set to Pc2, and the 1 st diameter Φ a and the 2 nd diameter Φ B are set so that expression 1 is satisfied during water passage, where expression 1:
Ph1×φA＝Pc1(φA-φB)+Pc2×φB。
4. the fluid control device according to any one of claims 1 to 3,
the fluid control device includes the hot water adjustment valve connected to the hot water passage and downstream of the water passage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-167653 | 2018-09-07 | ||
| JP2018167653A JP7214410B2 (en) | 2018-09-07 | 2018-09-07 | Fluid control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110886870A true CN110886870A (en) | 2020-03-17 |
| CN110886870B CN110886870B (en) | 2023-03-14 |
Family
ID=69745918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910842208.0A Active CN110886870B (en) | 2018-09-07 | 2019-09-06 | Fluid control device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7214410B2 (en) |
| KR (1) | KR20200028831A (en) |
| CN (1) | CN110886870B (en) |
| TW (1) | TWI808254B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0949583A (en) * | 1995-08-07 | 1997-02-18 | Miyawaki Inc | Mixing valve device |
| JP2001336646A (en) * | 2000-05-30 | 2001-12-07 | Tgk Co Ltd | Hot-cold water mixing valve |
| CN101392844A (en) * | 2007-09-18 | 2009-03-25 | 蒋明曦 | High precision self-supporting thermostatic water mixing valve |
| CN201462080U (en) * | 2009-04-29 | 2010-05-12 | 余玉存 | Water control valve |
| CN201896979U (en) * | 2010-01-29 | 2011-07-13 | 张润忠 | Pressure control valve and solar water heater |
| CN106499686A (en) * | 2015-09-04 | 2017-03-15 | 熵零股份有限公司 | Bidirectional pressure-release valve |
| CN207582582U (en) * | 2017-11-28 | 2018-07-06 | 信利光电股份有限公司 | A kind of shower control device and shower set |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7028702B2 (en) | 2002-11-11 | 2006-04-18 | Asia Union Co., Ltd. | Automatic water pressure control valve balancing temperature of mixed water |
| JP4248013B2 (en) | 2004-11-18 | 2009-04-02 | 株式会社Ｉｎａｘ | Automatic faucet |
| JP5006083B2 (en) | 2007-03-28 | 2012-08-22 | 株式会社ケーブイケー | Supply flow control valve device |
| JP5962838B1 (en) | 2015-12-18 | 2016-08-03 | Toto株式会社 | Faucet device |
-
2018
- 2018-09-07 JP JP2018167653A patent/JP7214410B2/en active Active
-
2019
- 2019-08-07 KR KR1020190096038A patent/KR20200028831A/en not_active Application Discontinuation
- 2019-09-05 TW TW108132037A patent/TWI808254B/en active
- 2019-09-06 CN CN201910842208.0A patent/CN110886870B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0949583A (en) * | 1995-08-07 | 1997-02-18 | Miyawaki Inc | Mixing valve device |
| JP2001336646A (en) * | 2000-05-30 | 2001-12-07 | Tgk Co Ltd | Hot-cold water mixing valve |
| CN101392844A (en) * | 2007-09-18 | 2009-03-25 | 蒋明曦 | High precision self-supporting thermostatic water mixing valve |
| CN201462080U (en) * | 2009-04-29 | 2010-05-12 | 余玉存 | Water control valve |
| CN201896979U (en) * | 2010-01-29 | 2011-07-13 | 张润忠 | Pressure control valve and solar water heater |
| CN106499686A (en) * | 2015-09-04 | 2017-03-15 | 熵零股份有限公司 | Bidirectional pressure-release valve |
| CN207582582U (en) * | 2017-11-28 | 2018-07-06 | 信利光电股份有限公司 | A kind of shower control device and shower set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110886870B (en) | 2023-03-14 |
| TW202010967A (en) | 2020-03-16 |
| KR20200028831A (en) | 2020-03-17 |
| JP2020041281A (en) | 2020-03-19 |
| TWI808254B (en) | 2023-07-11 |
| JP7214410B2 (en) | 2023-01-30 |
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