CN210088096U - Water return device, gas water heater and hot water system - Google Patents
Water return device, gas water heater and hot water system Download PDFInfo
- Publication number
- CN210088096U CN210088096U CN201920719411.4U CN201920719411U CN210088096U CN 210088096 U CN210088096 U CN 210088096U CN 201920719411 U CN201920719411 U CN 201920719411U CN 210088096 U CN210088096 U CN 210088096U
- Authority
- CN
- China
- Prior art keywords
- water
- valve
- return
- water return
- pipe
- 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.)
- Withdrawn - After Issue
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 418
- 238000007789 sealing Methods 0.000 claims description 35
- 238000009434 installation Methods 0.000 claims description 12
- 230000008602 contraction Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- Fluid-Driven Valves (AREA)
Abstract
The utility model relates to a return water device, gas heater and hot water system, return water device include: the valve comprises a valve body, a diaphragm and a valve core, wherein a water inlet passage, a water pressure cavity and a water outlet passage which are sequentially communicated are arranged in the valve body; the valve body is also provided with a water return channel, one end of the water return channel is communicated with the side part of the water outlet passage, and the other end of the water return channel is communicated with a water return pipe; the diaphragm set up in the water pressure chamber with between the return water passageway, in order to incite somebody to action the water pressure chamber with the return water passageway is separated, case movably locates in the return water passageway, the diaphragm receives can contradict after the water pressure effect in water pressure chamber promotes the case, so that the case is interrupted the return water passageway, above-mentioned return water device can prevent effectively that cold water from scurrying to in the bathroom water pipe, avoids bathroom temperature to fluctuate to effectively improve hot water system's use travelling comfort.
Description
Technical Field
The utility model relates to a hot water equipment technical field especially relates to a backwater device, gas heater and hot water system.
Background
The 'zero cold water' gas water heater circularly heats cold water in a pipeline, warm water reaching a set temperature can be used when a user opens a water tap, the condition that the user can only enjoy the warm water after discharging the cold water in the pipeline can be avoided, and the effects of saving time and water are achieved.
However, when the bathroom, in order to prevent that the cold water in the cold water pipe from flowing to the bathroom water pipe and influencing the temperature of bathroom, can install the check valve on the wet return of connecting cold water pipe and bathroom water pipe usually, but along with the increase of live time, the phenomenon that closes not tightly can appear in the check valve, and the check valve is invalid promptly, leads to during cold water drunkenness flows the bathroom water pipe, makes bathroom temperature undulant, greatly reduced travelling comfort.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a water returning device, a gas water heater and a hot water system for solving the above technical problems, in which the water returning device can effectively prevent cold water from flowing into a bathroom water pipe, and prevent bathroom water temperature from fluctuating, thereby effectively improving the comfort of the hot water system.
In order to achieve the above object, the utility model provides a water return device, water return device include: the valve comprises a valve body, a diaphragm and a valve core, wherein a water inlet passage, a water pressure cavity and a water outlet passage which are sequentially communicated are arranged in the valve body; the valve body is also provided with a water return channel, one end of the water return channel is communicated with the side part of the water outlet passage, and the other end of the water return channel is communicated with a water return pipe; the diaphragm is arranged between the water pressure cavity and the water return channel to separate the water pressure cavity from the water return channel, the valve core is movably arranged in the water return channel, and the diaphragm can push the valve core in a butting manner after being subjected to the water pressure action of the water pressure cavity, so that the valve core interrupts the water return channel.
Compared with the background art, the water return device at least has the following beneficial effects: in application, the water inlet passage is communicated with a hot water pipe of the gas water heater, the water outlet passage is communicated with a bathroom water pipe, and the water return passage is communicated with a cold water pipe of the gas water heater; in the bathroom mode, hot water enters from the water inlet passage, enters the water outlet passage through the water pressure cavity, and finally flows out of the water outlet passage to the bathroom water pipe for users to use, in the process, the water pressure of the hot water acts on the diaphragm in the water pressure cavity to press the diaphragm to the valve core, so that the valve core moves in the direction far away from the diaphragm to interrupt the water return passage, at the moment, cold water cannot flow into the water outlet passage from the water return passage, and therefore the bathroom water temperature fluctuation caused by the fact that the cold water flows into the bathroom water pipe is avoided; after a user closes the mixed water valve, when the water temperature of the hot water pipe is lower than a set value, the mode of 'zero cold water' is entered, at the moment, a water pump of the gas water heater is started, water in the hot water pipe sequentially flows into the water return pipe through the water inlet passage, the water pressure cavity, the water outlet passage and the water return passage, then flows into the cold water pipe from the water return pipe, and returns to the hot water pipe after being heated. Therefore, the water return device can effectively realize the zero cold water function of the gas water heater, and can effectively prevent cold water from flowing into a bathroom water pipe, so that the temperature fluctuation of the bathroom water is avoided, and the use comfort of a hot water system is effectively improved.
In one embodiment, the water outlet device further comprises a venturi tube arranged in the water outlet passage, the venturi tube comprises an inlet section, a contraction section and a diffusion section which are sequentially communicated, and the venturi tube is communicated with the water return passage through the contraction section.
In one embodiment, the water return device further comprises a one-way valve, the one-way valve is arranged in the water return channel, and the one-way valve is used for blocking external water from entering.
In one embodiment, the valve further comprises a return spring, one end of the return spring is pressed against the valve body, and the other end of the return spring is pressed against one side, back to the diaphragm, of the valve core.
In one embodiment, a first installation groove is formed in the valve body, a second installation groove is formed in one side, opposite to the diaphragm, of the valve core, one end of the return spring is pressed in the first installation groove in a propping mode, and the other end of the return spring is pressed in the second installation groove in a propping mode.
In one embodiment, a guide hole is further formed in the valve body, and the valve core is provided with a guide post matched with the guide hole so that the valve core can move along the guide of the guide hole.
In one embodiment, the valve body comprises a valve seat and a valve cover, the valve seat and the valve cover are connected into a whole, a first sealing groove is arranged on the valve seat, and/or a second sealing groove is arranged on the valve cover, and the valve seat and the valve cover jointly press the diaphragm in the first sealing groove and/or the second sealing groove.
In one embodiment, the water outlet valve further comprises a sealing ring, a third sealing groove is formed in the position, where the valve seat is communicated with the water return channel, of the valve seat, and/or a fourth sealing groove is formed in the position, where the valve seat is communicated with the water return channel, of the valve seat, and the sealing ring is pressed tightly in the third sealing groove and/or the fourth sealing groove by the valve seat and the valve cover together, so that the position, where the water outlet channel is communicated with the water return channel, of the valve seat is sealed.
In order to achieve the above object, the utility model provides a gas heater still, gas heater include hot-water line, cold water pipe, wet return, water pump and above-mentioned return device, the hot-water line the inhalant canal go out the water passageway return water passageway the wet return with the cold water pipe communicates in proper order and forms the return water passageway, the water pump is used for driving water and is in return water passageway inner loop flows.
Because the gas water heater adopts all the embodiments of the water return device, at least all the beneficial effects of the embodiments are achieved, and the detailed description is omitted.
In order to achieve the above object, the utility model provides a hot water system still provides, hot water system include bathroom water pipe, mix water valve and above-mentioned gas heater, the one end of bathroom water pipe be used for with the exhalant canal intercommunication, the other end of bathroom water pipe be used for with the hot water mouth of mixing the water valve is connected, the cold water mouth of mixing the water valve is used for being connected with outside water piping.
Since the hot water system adopts all the embodiments of the gas water heater, at least all the advantages of the embodiments are achieved, and no further description is given here.
Drawings
Fig. 1 is a schematic view of a first state structure of a water returning device in an implementation of the present invention;
fig. 2 is a schematic diagram of a second state structure of the water returning device in an implementation of the present invention;
FIG. 3 is a schematic structural diagram of a venturi tube in the water return device shown in FIGS. 1 and 2;
FIG. 4 is an enlarged schematic view of a water return device A shown in FIG. 1;
FIG. 5 is a schematic structural diagram of a valve core in the water return device shown in FIGS. 1 and 2;
FIG. 6 is a schematic structural view of a valve seat in the water return device shown in FIGS. 1 and 2;
FIG. 7 is a schematic structural diagram of a valve cover in the water return device shown in FIGS. 1 and 2;
fig. 8 is an enlarged structural schematic diagram at a position B of the water return device shown in fig. 1.
10. The valve body, 11, a valve seat, 111, a water inlet passage, 1111, a vertical section, 1112, a horizontal section, 112, a water pressure cavity, 113, a water outlet passage, 114, a first sealing groove, 115, a third sealing groove, 12, a valve cover, 121, a water return channel, 1211, a water return inlet passage, 1212, a movable cavity, 1213, a water return output passage, 122, a first mounting groove, 123, a guide hole, 20, a diaphragm, 30, a valve core, 31, a second mounting groove, 32, a guide column, 40, a venturi tube, 41, an inlet section, 42, a contraction section, 43, a diffusion section, 50, a one-way valve, 60, a reset spring, 70 and a sealing ring.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," and the like are used herein for illustrative purposes only. In the present invention, the terms "first", "second", "third" and "fourth" do not denote any particular quantity or order, but are merely used to distinguish names.
Fig. 1 shows a first operation state of the water return device, namely, a state that the diaphragm 20 is pressed against the valve core 30 by the water pressure of the water pressure chamber 112, so that the valve core 30 interrupts the water return channel 121, and in this state, the gas water heater operates in a bathroom mode; fig. 2 shows a second operation state of the water return device, that is, a state in which there is no water pressure or a water pressure in the water pressure chamber 112 is low enough to make the diaphragm 20 abut against the valve core 30, so that the valve core 30 conducts the water return channel 121, and in this state, the gas water heater operates in a "zero cold water" mode. Note that the arrows shown in fig. 1 and 2 represent the water flow direction.
Referring to fig. 1 and 2, a water returning device includes: the valve comprises a valve body 10, a diaphragm 20 and a valve core 30, wherein a water inlet passage 111, a water pressure cavity 112 and a water outlet passage 113 which are communicated in sequence are arranged in the valve body 10; the valve body 10 is further provided with a water return channel 121, one end of the water return channel 121 is communicated with the side part of the water outlet passage 113, and the other end is used for being communicated with a water return pipe; the diaphragm 20 is arranged between the water pressure cavity 112 and the water return channel 121 to separate the water pressure cavity 112 from the water return channel 121, the valve core 30 is movably arranged in the water return channel 121, and the diaphragm 20 can push against the valve core 30 after being subjected to the water pressure of the water pressure cavity 112, so that the valve core 30 interrupts the water return channel 121.
In the application of the water return device, the water inlet passage 111 is communicated with a hot water pipe of the gas water heater, the water outlet passage 113 is communicated with a bathroom water pipe, and the water return channel 121 is communicated with a cold water pipe of the gas water heater; in the bathroom mode, hot water enters from the water inlet passage 111, enters the water outlet passage 113 through the water pressure cavity 112, and finally flows out of the water outlet passage 113 to a bathroom water pipe for users, in the process, the water pressure of the hot water acts on the diaphragm 20 in the water pressure cavity 112, so that the diaphragm 20 presses the valve core 30, the valve core 30 moves in the direction away from the diaphragm 20 to interrupt the water return passage 121, at the moment, cold water cannot flow into the water outlet passage 113 from the water return passage 121, and therefore the bathroom water temperature fluctuation caused by the fact that the cold water flows into the bathroom water pipe is avoided; after a user closes the mixed water valve, when the water temperature of the hot water pipe is lower than a set value, the mode of 'zero cold water' is entered, at the moment, a water pump of the gas water heater is started, water in the hot water pipe sequentially flows into the water return pipe through the water inlet passage 111, the water pressure cavity 112, the water outlet passage 113 and the water return passage 121, then flows into the cold water pipe from the water return pipe, and returns to the hot water pipe after being heated, in the process, no water pressure or low water pressure exists in the water pressure cavity 112, the diaphragm 20 does not collide with the valve core 30, the valve core 30 moves towards the direction close to the diaphragm 20 under the suction action of the water pump, so that the water return passage 121 is conducted, and water circulation flow is realized until the water temperature of the hot. Therefore, the water return device can effectively realize the zero cold water function of the gas water heater, and can effectively prevent cold water from flowing into a bathroom water pipe, so that the temperature fluctuation of the bathroom water is avoided, and the use comfort of a hot water system is effectively improved.
Specifically, with reference to fig. 1 and fig. 2, the water return channel includes a water return inlet passage 1211, a movable cavity 1212, and a water return outlet passage 1213, which are sequentially connected, wherein an end of the water return inlet passage 1211 away from the movable cavity 1212 is connected to a side of the water outlet passage 113, an end of the water return outlet passage 1213 away from the movable cavity 1212 is used for communicating with a water return pipe, and the valve element 30 is movably disposed in the movable cavity 1212.
Specifically, please continue to refer to fig. 1 and fig. 2, the water inlet passage 111 includes a vertical section 1111 and a horizontal section 1112, the vertical section 1111 is used for being connected to a hot water pipe of the gas water heater, and the horizontal section 1112 is perpendicular to the diaphragm 20 to increase the pressure applied to the diaphragm 20 after the hot water enters the water inlet passage 111, so that the valve core 30 can more tightly interrupt the water return passage 121, thereby more effectively preventing cold water from flowing into the water pipe of the bathroom to cause temperature fluctuation of the bathroom, and further more effectively ensuring the comfort of the hot water system.
In an embodiment, please refer to fig. 1 and 3, the water returning device further includes a venturi tube 40 (a device for measuring fluid pressure difference, so called by italian physicist g.b. venturi utility model) disposed in the water outlet passage 113, the venturi tube 40 includes an inlet section 41, a contraction section 42 and a diffusion section 43 which are sequentially communicated, and the venturi tube 40 is communicated with the water returning channel 121 through the contraction section 42. Hot water gets into venturi 40 after, flows out to the bathroom water pipe after inlet section 41, contraction section 42 and diffuser 43 in proper order, and when hot water through contraction section 42, the velocity of flow accelerates, makes to produce the negative pressure in the return water passageway 121, and the negative pressure acts on case 30, makes case 30 cut off return water passageway 121 more closely, prevents more effectively that cold water from scurrying to and leading to bathroom temperature fluctuation in the bathroom water pipe, and then guarantees hot water system's use travelling comfort more effectively.
In an embodiment, please refer to fig. 1 and 2, the water returning device further includes a check valve 50, the check valve 50 is disposed in the water returning channel 121, and the check valve 50 is used for blocking external water from entering. By arranging the one-way valve 50 in the water return channel 121, the external cold water is further prevented from flowing into the water outlet channel 113 from the water return channel 121, so that the fluctuation of the bathroom water temperature caused by the cold water flowing into the bathroom water pipe is effectively avoided, and the use comfort of the hot water system is further effectively ensured.
In an embodiment, referring to fig. 4, the water returning device further includes a return spring 60, one end of the return spring 60 is pressed against the valve body 10, and the other end of the return spring 60 is pressed against a side of the valve core 30 facing away from the diaphragm 20. In the sanitary mode, the diaphragm 20 overcomes the elastic force of the return spring 60 to press the valve core 30 under the action of water pressure, so that the valve core 30 moves in the direction away from the diaphragm 20 in the movable cavity 122 to interrupt the water return channel 121, after a user closes the water valve, when the water temperature of the hot water pipe is lower than a set value, the water temperature enters the 'zero cold water' mode, at the moment, no water pressure or low water pressure exists in the water pressure cavity 112, the diaphragm 20 does not collide with the valve core 30, the valve core 30 moves in the direction close to the diaphragm 20 under the action of the return spring 60 to conduct the water return channel 121, so that water circularly flows until the water temperature of the hot water pipe reaches the set value, the valve core 30 can be more effectively reset by arranging the return spring 60 to effectively conduct the water return channel 121, and the working reliability of the water return.
In an embodiment, referring to fig. 4, 5 and 7, a first installation groove 122 is formed in the valve body 10, a second installation groove 31 is formed in a side of the valve core 30 facing away from the diaphragm 20, one end of the return spring 60 is pressed in the first installation groove 122, and the other end of the return spring 60 is pressed in the second installation groove 31. The two ends of the return spring 60 are respectively abutted against the first mounting groove 122 and the second mounting groove 31, so that the limit effect on the return spring 60 is achieved, the reset function failure caused by the displacement of the return spring 60 in the working process can be effectively avoided, and the working reliability of the water return device is further improved.
In an embodiment, referring to fig. 1, fig. 2 and fig. 5, a guide hole 123 is further formed in the valve body 10, and the valve core 30 is provided with a guide post 32 for cooperating with the guide hole 123, so that the valve core 30 is guided along the guide hole 123. The guide post 32 is matched with the guide hole 123 to enable the valve core 30 to move stably, so that the problem that the valve core 30 cannot work normally due to displacement in the working process is effectively avoided, and the working reliability of the water return device is further improved.
In an embodiment, referring to fig. 1, 2 and 6, the valve body 10 includes a valve seat 11 and a valve cover 12, and the valve seat 11 and the valve cover 12 are integrally connected. Specifically, please refer to fig. 6 and 7, the water inlet passage 111, the water pressure chamber 112 and the water outlet passage 113 are sequentially disposed in the valve seat 11, and the water return passage 121 is disposed in the valve cover 12; combined with the foregoing embodiment, the first mounting groove 122 and the guide hole 123 are provided in the bonnet 12. The valve seat 11 is provided with a first sealing groove 114, and/or the valve cover 12 is provided with a second sealing groove (not shown), and the valve seat 11 and the valve cover 12 jointly press the diaphragm 20 in the first sealing groove 114 and/or the second sealing groove, so as to improve the sealing performance between the valve seat 11 and the valve cover 12.
In an embodiment, please refer to fig. 1, fig. 2 and fig. 6, the water returning device further includes a sealing ring 70, the valve seat 11 is provided with a third sealing groove 115 at a communication position of the water outlet passage 113 and the water returning channel 121, and/or the valve cover 12 is provided with a fourth sealing groove (not shown) at a communication position of the water outlet passage 113 and the water returning channel 121, and the valve seat 11 and the valve cover 12 press the sealing ring 70 in the third sealing groove 115 and/or the fourth sealing groove together to seal the communication position of the water outlet passage 113 and the water returning channel 121, so as to further improve the sealing performance between the valve seat 11 and the valve cover 12.
A gas water heater comprises a hot water pipe, a cold water pipe, a water return pipe, a water pump and the water return device, wherein the hot water pipe, a water inlet passage 111, a water outlet passage 113, a water return passage 121, the water return pipe and the cold water pipe are sequentially communicated to form a water return passage, and the water pump is used for driving water to circularly flow in the water return passage.
Because the gas water heater adopts all the embodiments of the water return device, at least all the beneficial effects of the embodiments are achieved, and the detailed description is omitted.
A hot water system comprises a bathroom water pipe, a mixed water valve and the gas water heater, wherein one end of the bathroom water pipe is communicated with a water outlet passage, the other end of the bathroom water pipe is connected with a hot water port of the mixed water valve, and a cold water port of the mixed water valve is connected with an external water pipe.
Since the hot water system adopts all the embodiments of the gas water heater, at least all the advantages of the embodiments are achieved, and no further description is given here.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The water return device is characterized by comprising: the valve comprises a valve body (10), a diaphragm (20) and a valve core (30), wherein a water inlet passage (111), a water pressure cavity (112) and a water outlet passage (113) which are communicated in sequence are arranged in the valve body (10); the valve body (10) is further provided with a water return channel (121), one end of the water return channel (121) is communicated with the side part of the water outlet channel (113), and the other end of the water return channel is communicated with a water return pipe; the diaphragm (20) is arranged between the water pressure cavity (112) and the water return channel (121) to separate the water pressure cavity (112) from the water return channel (121), the valve core (30) is movably arranged in the water return channel (121), and the diaphragm (20) can push the valve core (30) in a propping manner after being subjected to the water pressure action of the water pressure cavity (112), so that the valve core (30) interrupts the water return channel (121).
2. The water return device according to claim 1, further comprising a venturi tube (40) disposed in the water outlet passage (113), wherein the venturi tube (40) comprises an inlet section, a contraction section and a diffusion section which are sequentially communicated, and the venturi tube (40) is communicated with the water return channel (121) through the contraction section.
3. A water return device according to claim 1, further comprising a check valve (50), wherein the check valve (50) is disposed in the water return channel (121), and the check valve (50) is used for blocking external water from entering.
4. A water return device according to claim 1, further comprising a return spring (60), wherein one end of the return spring (60) is pressed against the valve body (10), and the other end of the return spring (60) is pressed against a side of the valve core (30) facing away from the diaphragm (20).
5. A water return device according to claim 4, characterized in that a first installation groove (122) is formed in the valve body (10), a second installation groove is formed in a side of the valve core (30) facing away from the diaphragm (20), one end of the return spring (60) is pressed in the first installation groove (122), and the other end of the return spring (60) is pressed in the second installation groove.
6. A water return device according to claim 1, characterized in that a guide hole (123) is further formed in the valve body (10), and the valve core (30) is provided with a guide post for cooperating with the guide hole (123) so that the valve core (30) can move along the guide of the guide hole (123).
7. The water return device according to any one of claims 1 to 6, characterized in that the valve body (10) comprises a valve seat (11) and a valve cover (12), the valve seat (11) and the valve cover (12) are connected into a whole, a first sealing groove (114) is arranged on the valve seat (11), and/or a second sealing groove is arranged on the valve cover (12), and the diaphragm (20) is compressed in the first sealing groove (114) and/or the second sealing groove by the valve seat (11) and the valve cover (12) together.
8. The water return device according to claim 7, further comprising a sealing ring (70), wherein a third sealing groove (115) is formed in a communication position of the valve seat (11) between the water outlet passage (113) and the water return passage (121), and/or a fourth sealing groove is formed in a communication position of the water outlet passage (113) and the water return passage (121) of the valve cover (12), and the sealing ring (70) is compressed in the third sealing groove (115) and/or the fourth sealing groove by the valve seat (11) and the valve cover (12) together, so that the communication position of the water outlet passage (113) and the water return passage (121) is sealed.
9. The gas water heater is characterized by comprising a hot water pipe, a cold water pipe, a water return pipe, a water pump and the water return device according to any one of claims 1 to 8, wherein the hot water pipe, the water inlet passage (111), the water outlet passage (113), the water return channel (121), the water return pipe and the cold water pipe are sequentially communicated to form a water return passage, and the water pump is used for driving water to circularly flow in the water return passage.
10. A hot water system, characterized in that the hot water system comprises a bathroom water pipe, a mixing water valve and the gas water heater of claim 9, wherein one end of the bathroom water pipe is used for communicating with the water outlet passage (113), the other end of the bathroom water pipe is used for connecting with a hot water port of the mixing water valve, and a cold water port of the mixing water valve is used for connecting with an external water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920719411.4U CN210088096U (en) | 2019-05-20 | 2019-05-20 | Water return device, gas water heater and hot water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920719411.4U CN210088096U (en) | 2019-05-20 | 2019-05-20 | Water return device, gas water heater and hot water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210088096U true CN210088096U (en) | 2020-02-18 |
Family
ID=69479035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920719411.4U Withdrawn - After Issue CN210088096U (en) | 2019-05-20 | 2019-05-20 | Water return device, gas water heater and hot water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210088096U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094562A (en) * | 2019-05-20 | 2019-08-06 | 广东万和新电气股份有限公司 | Water recovery apparatus, gas heater and hot-water heating system |
| CN112145731A (en) * | 2020-09-23 | 2020-12-29 | 上海兴邺材料科技有限公司 | Self-regulating temperature faucet and control method thereof and water supply system |
-
2019
- 2019-05-20 CN CN201920719411.4U patent/CN210088096U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094562A (en) * | 2019-05-20 | 2019-08-06 | 广东万和新电气股份有限公司 | Water recovery apparatus, gas heater and hot-water heating system |
| CN110094562B (en) * | 2019-05-20 | 2024-06-11 | 广东万和新电气股份有限公司 | Backwater device, gas water heater and hot water system |
| CN112145731A (en) * | 2020-09-23 | 2020-12-29 | 上海兴邺材料科技有限公司 | Self-regulating temperature faucet and control method thereof and water supply system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110094562B (en) | Backwater device, gas water heater and hot water system | |
| CN210088096U (en) | Water return device, gas water heater and hot water system | |
| CN216715309U (en) | Water return valve and water supply system | |
| US20190032801A1 (en) | Tank tee assembly | |
| JP4343719B2 (en) | Backflow prevention device | |
| CN110319576B (en) | A zero cold water gas water heater | |
| CN110966433A (en) | Joint and water heater | |
| CN211739511U (en) | Go out water valve group and hanging stove | |
| CN201575204U (en) | Isolating valve with return-stopping function | |
| CN211315224U (en) | Joint and water heater | |
| CN113137498B (en) | Water return valve and water supply system | |
| CN210461811U (en) | Adjustable self-pressure-relief silencing check valve | |
| JP3771211B2 (en) | Edge cut valve unit | |
| CN215806599U (en) | Waterway switching device | |
| CN221121010U (en) | Backwater device and water heater | |
| CN213630995U (en) | Pressure relief system of water heater | |
| CN220850857U (en) | Pipeline joint type one-way throttle valve | |
| CN216308240U (en) | Zero-cold water combined water pipe | |
| CN220134668U (en) | Reset three-way valve for bathroom | |
| CN214743563U (en) | Single-ring silica gel flexible built-in check valve | |
| CN210066892U (en) | Valve core type eccentric joint with backwater circulation channel | |
| CN216716597U (en) | Water inlet and outlet assembly for water heater | |
| CN222046753U (en) | Hot and cold water valves and water supply system | |
| CN211649213U (en) | Check valve device for preventing backflow | |
| CN214466290U (en) | Water outlet valve of waterway system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200218 Effective date of abandoning: 20240611 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200218 Effective date of abandoning: 20240611 |