CN106052134B - Water heater and pipeline cold water recovery system thereof - Google Patents
Water heater and pipeline cold water recovery system thereof Download PDFInfo
- Publication number
- CN106052134B CN106052134B CN201610581021.6A CN201610581021A CN106052134B CN 106052134 B CN106052134 B CN 106052134B CN 201610581021 A CN201610581021 A CN 201610581021A CN 106052134 B CN106052134 B CN 106052134B
- Authority
- CN
- China
- Prior art keywords
- water
- containing cavity
- cold
- pipe
- cold water
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 421
- 238000011084 recovery Methods 0.000 title claims abstract description 23
- 230000000903 blocking effect Effects 0.000 claims description 14
- 238000001125 extrusion Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 11
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Temperature-Responsive Valves (AREA)
- Domestic Plumbing Installations (AREA)
Abstract
The invention discloses a pipeline cold water recovery system of a water heater, which comprises: the water heater comprises a water heater main body, a water storage cavity and a water filling port for filling water into the water storage cavity; the hot water pipe is communicated with the water containing cavity, and the terminal of the hot water pipe is a user terminal; one end of the cold water return pipe is communicated with the position close to the water outlet of the hot water pipe, and the other end of the cold water return pipe is communicated with the water containing cavity; the water stop piece is slidably arranged in the water containing cavity and can change the volume of the water containing cavity when sliding in the water containing cavity; the water bag is arranged on the cold water return pipe and can generate deformation; the elastic piece is used for driving the water stop piece to move towards the direction which can reduce the volume of the water containing cavity; and the temperature control valve is used for sensing the water temperature at the position of the water outlet of the hot water pipe and controlling the on-off of the cold water return pipe. With the arrangement, the pipeline cold water recovery system of the water heater provided by the invention can avoid the problems of time waste and water resource waste caused by the fact that cold water needs to be discharged firstly when hot water is used.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a water heater and a pipeline cold water recovery system thereof.
Background
In the use process of the water heater in the prior art, when a hot water faucet is opened, cold water flows out firstly, and hot water flows out after the cold water is discharged for a period of time. This phenomenon is more evident in some places away from the hot water supply source, such as residential districts and hotels where hot water is supplied uniformly. The main reason for this is that when the user does not use hot water, the hot water stays in the water pipe and becomes cold. When hot water is used again, cold water in the pipeline needs to be discharged firstly, and the usage that cold water is discharged firstly when hot water is used not only prolongs the time for waiting for hot water, but also wastes water resources.
Therefore, how to solve the problems of time waste and water resource waste caused by the fact that cold water needs to be discharged when hot water is used in the water heater in the prior art becomes an important technical problem to be solved by technical personnel in the field.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a pipe cold water recycling system for a water heater, which can avoid the problems of time waste and water resource waste caused by the need of discharging cold water when hot water is used. The invention also aims to provide a water heater comprising the pipeline cold water recovery system.
The invention provides a pipeline cold water recovery system of a water heater, which comprises:
the water heater comprises a water heater main body, a water storage cavity and a water filling port for filling water into the water storage cavity;
the hot water pipe is communicated with the water containing cavity, and the terminal of the hot water pipe is a user terminal;
one end of the cold water return pipe is communicated with the position close to the water outlet of the hot water pipe, and the other end of the cold water return pipe is communicated with the water containing cavity;
the water blocking piece is slidably arranged in the water containing cavity and can change the volume of the water containing cavity when sliding in the water containing cavity;
the water stopping piece is arranged on the cold water return pipe and can generate deformation, and when the water stopping piece moves towards the direction which can expand the volume of the water containing cavity, the water stopping piece can perform extrusion action on the water bag so as to deform the water bag and further extrude the water in the water bag into the water containing cavity; the elastic piece is used for driving the water stop piece to move towards the direction which can enable the volume of the water containing cavity to be reduced;
the temperature control valve is used for sensing the water temperature at the position of the water outlet of the hot water pipe and controlling the on-off of the cold water return pipe; when the water temperature at the position of the water outlet of the hot water pipe is lower than the preset temperature, the temperature control valve is opened, and the elastic piece drives the water stop piece to move towards the direction capable of reducing the volume of the water containing cavity, so that the water in the water containing cavity sequentially enters the water bag along the hot water pipe and the cold water return pipe.
Preferably, a check valve is arranged on the cold water return pipe between the water bag and the water containing cavity, and the check valve is opened when water in the cold water return pipe flows to the direction of the water containing cavity.
Preferably, the water stop piece is connected with the side wall of the water heater main body in a sealing mode, the water stop piece slides along the side wall of the water heater main body in the up-down direction, and the water containing cavity is located on the upper side of the water stop piece.
Preferably, the elastic part is arranged below the water stop part, the lower end of the elastic part is fixed, the upper end of the elastic part is fixedly connected with the water stop part, and the elastic part is always in a compression state.
Preferably, the lateral wall of water heater main part is equipped with high-order spacing arch and low level spacing arch, the water-stop piece is in high-order spacing arch with slide between the low level spacing arch.
Preferably, the part of the cold water return pipe close to the water outlet of the hot water pipe is sleeved inside the hot water pipe.
Preferably, the elastic member is a spring.
Preferably, the cold water return pipe between the water bag and the water containing cavity is a hose.
Preferably, the side wall of the water bag is of a telescopic thread-like structure.
The invention also provides a water heater comprising the pipeline cold water recovery system.
In the technical scheme provided by the invention, the water containing cavity, the hot water pipe, the cold water return pipe and the water bag form a water circulation flow path. When the water temperature at the position of the water outlet of the hot water pipe is lower than the preset temperature, the temperature control valve is opened, the cold water return pipe is conducted, at the moment, the water stop piece can be driven to move towards the direction enabling the volume of the water containing cavity to be reduced under the elastic action of the elastic piece, the hot water in the water containing cavity is extruded into the hot water pipe, and the cold water in the hot water pipe enters the water bag through the cold water return pipe. In this way, when the user opens the end of the hot water pipe, hot water can be used. When hot water is filled into the water containing cavity, under the action of water pressure, the water stop piece moves in the direction capable of expanding the volume of the water containing cavity, and after the water stop piece moves to a certain position, the water bag is extruded and deforms, so that cold water in the water bag is extruded into the water containing cavity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a pipeline cold water recovery system according to an embodiment of the present invention;
in fig. 1:
a water containing cavity-11, a hot water pipe-12, a cold water return pipe-13, a temperature control valve-14, a water bag-15, a water stop piece-16, a compression spring-17, a one-way valve-18, a high position limit bulge-19 and a low position limit bulge-20.
Detailed Description
The core of this embodiment is to provide a pipeline cold water recovery system for a water heater, which can avoid the problems of time waste and water resource waste caused by the need of discharging cold water when hot water is used. The core of the embodiment is to provide a water heater comprising the pipeline cold water recovery system.
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the contents of the invention described in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.
Referring to fig. 1, the present embodiment provides a pipeline cold water recycling system for a water heater, which includes a water heater main body having a water containing cavity 11, a hot water pipe 12, a cold water return pipe 13, a temperature control valve 14, an elastic member, and a water bag 15.
Wherein, the hot water pipe 12 is communicated with the water containing cavity 11, the end of the hot water pipe 12 is a user terminal, and the end of the hot water pipe 12 can be a water hole head, a spray nozzle and the like. One end of a cold water return pipe 13 is communicated with a position close to a water outlet of the hot water pipe 12, the other end of the cold water return pipe is communicated with the water containing cavity 11, the water bag 13 is arranged on the cold water return pipe 13, water in the cold water return pipe firstly flows into the water bag 13 and then flows into the water containing cavity 11, and thus the water containing cavity 11, the hot water pipe 12, the cold water return pipe 13 and the water bag 13 form a closed annular flow path.
The elastic member is used for driving the water stop member 16 to move towards the direction which can reduce the volume of the water containing cavity 11, so that the water in the water containing cavity 11 circularly flows along the directions of the hot water pipe 12, the cold water return pipe 13 and the water bag 13 in sequence under the driving action of the elastic member. The temperature control valve 14 is used for sensing the water temperature at the water outlet of the hot water pipe 12 and controlling the on-off of the cold water return pipe 13 according to the sensed water temperature; when the water temperature at the water outlet of the hot water pipe 12 is lower than the preset temperature, the temperature control valve 14 is opened, and the elastic member drives the water stop member 16 to slide, so that the water in the water containing cavity 11 is driven to enter the hot water pipe 12, and meanwhile, the cold water in the hot water pipe 12 enters the water bag 15 through the cold water return pipe 13.
So set up, when the temperature of the delivery port position of hot-water line 12 was less than preset the temperature, temperature control valve 14 opened, and cold water back flow pipe 13 switches on to the elastic component drive water stop slides, and the water stop drive holds the cold water that water entered into hot-water line 12 in the water cavity 11, hot-water line 12 and passes through cold water back flow pipe 13 and get into water pocket 15, holds the hot water in the water cavity 11 like this and replaces the cold water in hot-water line 12, and then the user can use the hot water at any time.
When the water temperature at the water outlet of the hot water pipe 12 is equal to or higher than the preset temperature, the temperature control valve 14 is closed, the hot water in the water containing cavity 11 cannot flow, and the water stop member stops moving.
In addition, in the present embodiment, the water bag is a deformable water bag, and when the water in the cold water return pipe 13 flows into the water bag 15 under pressure, the water bag 15 deforms so as to be able to contain the flowing cold water. When hot water is filled into the water containing cavity 11, under the action of water pressure, the water stop piece slides towards the direction of increasing the volume of the water containing cavity 11, and after the water stop piece slides to a preset position, the water stop piece extrudes the water bag 15 to deform the water bag 15, so that cold water in the water bag 15 is extruded into the water containing cavity 11, and therefore the amount of water in the water bag 15 can be reduced, and the water containing cavity is used for containing the cold water next time.
In this embodiment, the water blocking member 16 preferably moves in the up-down direction, and when the water blocking member 16 moves upward, the volume of the water containing chamber 11 becomes smaller, and when the water blocking member moves downward, the volume of the water containing chamber 11 becomes larger.
The water bag 15 is communicated with the cold water return pipe 13, water in the cold water return pipe 13 can flow into the water bag 15, and along with the increase of the water pressure, the water bag 15 generates elastic deformation to increase the water capacity.
The driving member may be embodied as a compression spring 17, an air spring, or the like. The water bladder 15 is preferably a water bladder having a corrugated structure in a side wall, and when it is pressed, the corrugations are contracted together, and when cold water is filled into the water bladder 15, the corrugations are expanded to increase the volume.
In order to prevent the water in the water containing cavity 11 from flowing back to the water sac 15, the cold water return pipe 13 is provided with a one-way valve 18, when the water in the cold water return pipe 13 flows towards the water containing cavity 11, the one-way valve 18 is opened, otherwise, the one-way valve 18 is closed. It should be noted that the check valve 18 is required to be provided in the cold water return pipe 13 between the water containing chamber 11 and the water bladder 15, and in addition, the part of the cold water return pipe 13 is preferably a hose so that the part of the cold water return pipe can be deformed as the water blocking member 16 is raised or lowered.
In addition, in the present embodiment, the water blocking member 16 slides up and down along the side wall of the water heater main body, and in order to prevent the water blocking member 16 from being displaced too much, the side wall of the water heater main body may be provided with a high position limiting protrusion 19 and a low position limiting protrusion 20, and the water blocking member 16 slides between the high position limiting protrusion 19 and the low position limiting protrusion 20.
In order to save space and beauty, the part of the cold water return pipe 13 near the outlet of the hot water pipe 12 in this embodiment may be sleeved inside the hot water pipe 12. So set up, when the installation, expose at the water pipe of user side only one, not only pleasing to the eye, occupation space is less moreover.
The embodiment also provides a water heater comprising the pipeline cold water recovery system. So set up, the water heater that this embodiment provided, it can avoid because at first need put away cold water when using hot water, and the problem of the waste time and the water waste resource that cause. The derivation process of the beneficial effect is substantially similar to the derivation process of the beneficial effect brought by the pipeline cold water recovery system, and therefore, the description is omitted here.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A chilled water piping recovery system for a water heater, comprising:
the water heater comprises a water heater main body, a water storage cavity and a water filling port for filling water into the water storage cavity;
the hot water pipe is communicated with the water containing cavity, and the terminal of the hot water pipe is a user terminal;
one end of the cold water return pipe is communicated with the position close to the water outlet of the hot water pipe, and the other end of the cold water return pipe is communicated with the water containing cavity;
the water blocking piece is slidably arranged in the water containing cavity and can change the volume of the water containing cavity when sliding in the water containing cavity;
the water stopping piece is arranged on the cold water return pipe and can generate deformation, and when the water stopping piece moves towards the direction which can expand the volume of the water containing cavity, the water stopping piece can perform extrusion action on the water bag so as to deform the water bag and further extrude the water in the water bag into the water containing cavity; when hot water is filled into the water containing cavity, the water blocking piece slides in the direction of increasing the volume of the water containing cavity under the action of water pressure, and after the water blocking piece slides to a preset position, the water blocking piece extrudes the water bag to deform the water bag, so that cold water in the water bag is extruded into the water containing cavity, and the water in the water bag can be reduced for containing the cold water next time;
the elastic piece is used for driving the water stop piece to move towards the direction which can enable the volume of the water containing cavity to be reduced;
the temperature control valve is used for sensing the water temperature at the position of the water outlet of the hot water pipe and controlling the on-off of the cold water return pipe; when the water temperature at the position of the water outlet of the hot water pipe is lower than a preset temperature, the temperature control valve is opened, and the elastic piece drives the water stop piece to move towards the direction capable of reducing the volume of the water containing cavity so as to enable the water in the water containing cavity to enter the water bag along the hot water pipe and the cold water return pipe in sequence; when the water temperature at the water outlet of the hot water pipe is equal to or higher than the preset temperature, the temperature control valve is closed, the hot water in the water containing cavity cannot flow, and then the water stop piece stops moving.
2. The piped cold water recovery system of claim 1, wherein a one-way valve is provided in said cold water return conduit between said water bladder and said water receiving chamber, said one-way valve opening when water in said cold water return conduit is flowing in the direction of said water receiving chamber.
3. The pipeline cold water recovery system of claim 1, wherein the water blocking member is hermetically connected to the side wall of the water heater main body and slides up and down along the side wall of the water heater main body, and the water containing cavity is located at an upper side of the water blocking member.
4. The pipeline cold water recovery system of claim 3, wherein said elastic member is disposed below said water stop member, and wherein said elastic member is fixed at a lower end thereof and fixedly connected at an upper end thereof to said water stop member, said elastic member being always in a compressed state.
5. The pipeline cold water recovery system of claim 3, wherein the side wall of the water heater body is provided with a high-position limiting protrusion and a low-position limiting protrusion, and the water stop member slides between the high-position limiting protrusion and the low-position limiting protrusion.
6. A ducted cold water recovery system as claimed in claim 1 wherein a portion of said cold water return pipe adjacent to said outlet of said hot water pipe is nested within said hot water pipe.
7. The ducted cold water recovery system of claim 4, wherein said resilient member is a spring.
8. The piped cold water recovery system of claim 1 wherein said cold water return conduit between said water bladder and said water containing chamber is a hose.
9. The pipeline cold water recovery system of claim 1, wherein the side wall of said water bladder is of a thread-like structure that can be extended and retracted.
10. A water heater including a piped cold water recovery system as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610581021.6A CN106052134B (en) | 2016-07-21 | 2016-07-21 | Water heater and pipeline cold water recovery system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610581021.6A CN106052134B (en) | 2016-07-21 | 2016-07-21 | Water heater and pipeline cold water recovery system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106052134A CN106052134A (en) | 2016-10-26 |
| CN106052134B true CN106052134B (en) | 2022-01-11 |
Family
ID=57417245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610581021.6A Expired - Fee Related CN106052134B (en) | 2016-07-21 | 2016-07-21 | Water heater and pipeline cold water recovery system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106052134B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999992B (en) * | 2018-08-24 | 2022-04-26 | 浙江冠正阀门股份有限公司 | Gate valve with energy-saving effect |
| CN109363547B (en) * | 2018-11-21 | 2021-04-30 | 江西三江精密针车有限公司 | Water-saving shower device |
| CN109579311B (en) * | 2018-12-29 | 2021-01-19 | 苏州衡创信息科技有限公司 | Water-saving conduit of water heater |
| CN109724239B (en) * | 2018-12-29 | 2020-12-18 | 安徽国星生物化学有限公司 | Water-saving heat pipe of water heater |
| CN110134213B (en) * | 2019-05-23 | 2021-06-25 | 杭州万骏创业服务有限公司 | CPU radiator |
| CN110328065A (en) * | 2019-06-14 | 2019-10-15 | 周峰 | A kind of cold water can automatic back flow shower nozzle |
| CN111189225A (en) * | 2020-01-19 | 2020-05-22 | 苏均迎 | Cold water recovery neutralization apparatus for water heater |
| CN111473516B (en) * | 2020-04-16 | 2021-11-12 | 威海世比亚食品有限公司 | Saving type water heater pipeline |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5140398B2 (en) * | 2007-11-30 | 2013-02-06 | 三洋電機株式会社 | Refrigeration equipment |
| CN103307738A (en) * | 2012-03-06 | 2013-09-18 | 金宇 | Novel electric storage water heater |
| CN203454397U (en) * | 2013-08-22 | 2014-02-26 | 惠州市百灵节能科技有限公司 | Instantly heated water supply device |
| CN204923448U (en) * | 2015-09-15 | 2015-12-30 | 珠海格力电器股份有限公司 | Air-conditioning hot water system |
| CN105318556A (en) * | 2015-11-27 | 2016-02-10 | 福州安佳智电子科技有限公司 | Energy-saving and water-saving system and control method thereof |
| CN205825443U (en) * | 2016-07-21 | 2016-12-21 | 广东工业大学 | Water heater and pipeline cold water recovery system thereof |
-
2016
- 2016-07-21 CN CN201610581021.6A patent/CN106052134B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5140398B2 (en) * | 2007-11-30 | 2013-02-06 | 三洋電機株式会社 | Refrigeration equipment |
| CN103307738A (en) * | 2012-03-06 | 2013-09-18 | 金宇 | Novel electric storage water heater |
| CN203454397U (en) * | 2013-08-22 | 2014-02-26 | 惠州市百灵节能科技有限公司 | Instantly heated water supply device |
| CN204923448U (en) * | 2015-09-15 | 2015-12-30 | 珠海格力电器股份有限公司 | Air-conditioning hot water system |
| CN105318556A (en) * | 2015-11-27 | 2016-02-10 | 福州安佳智电子科技有限公司 | Energy-saving and water-saving system and control method thereof |
| CN205825443U (en) * | 2016-07-21 | 2016-12-21 | 广东工业大学 | Water heater and pipeline cold water recovery system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106052134A (en) | 2016-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106052134B (en) | Water heater and pipeline cold water recovery system thereof | |
| CN103221749B (en) | Hot water recovery system | |
| CN106766179B (en) | Water saving device of water heater | |
| CN110485514B (en) | Zero-cold-water shower equipment | |
| EP3123909B1 (en) | Water valve and water dispenser | |
| CN107062594B (en) | Cold and hot separation water heater | |
| CN109124347B (en) | Water dispenser convenient to control temperature | |
| CN109630723A (en) | Self-supporting thimerosal tap | |
| CN107687705B (en) | Water heater and control method thereof | |
| CN207161839U (en) | Water way controller | |
| CN103954044A (en) | Pipeline frost-crack preventing automatic protective valve in water heater | |
| CN102519143B (en) | Electric water heater | |
| US9353955B1 (en) | Hot water recovery apparatus | |
| CN205825443U (en) | Water heater and pipeline cold water recovery system thereof | |
| JP6205546B2 (en) | Liquid supply device | |
| CN101545687A (en) | Water tank of solar water heater which contains telescopic cavity | |
| CN206683229U (en) | A kind of New-type water heater water saving fixtures | |
| CN210050986U (en) | Small kitchen appliance without using electricity | |
| CN204944236U (en) | A kind of wall-hung type soap lye heater | |
| CN202381834U (en) | Quick electric heating faucet | |
| CN104055349A (en) | Temperature interactive sofa | |
| CN102518194A (en) | Automatic flushing device of intelligent toilet | |
| CN106638810B (en) | A kind of water-saving automatic device of shower | |
| CN204864288U (en) | Multipurpose enemator | |
| CN109770716B (en) | Water dispenser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220111 |