CN224251192U - Water dispenser capable of emptying residual water - Google Patents
Water dispenser capable of emptying residual waterInfo
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- CN224251192U CN224251192U CN202520782945.7U CN202520782945U CN224251192U CN 224251192 U CN224251192 U CN 224251192U CN 202520782945 U CN202520782945 U CN 202520782945U CN 224251192 U CN224251192 U CN 224251192U
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Abstract
The utility model relates to a water dispenser capable of emptying residual water, which comprises a water heating device, a first water pump, a water pipeline, a water outlet nozzle, a first electromagnetic valve and a control circuit, wherein the water pipeline comprises a water inlet pipeline, a water outlet pipeline and a first backflow pipeline, the first port of the water inlet pipeline is a water inlet and water outlet port used for being connected with a water source, the inlet of the first water pump is communicated with the second port of the water inlet pipeline, the outlet of the first water pump is communicated with the inlet of the water heating device, the outlet of the water heating device is communicated with the first port of the water outlet pipeline, the second port of the water outlet pipeline is communicated with the water outlet nozzle, after a user finishes a water taking action, a control circuit board automatically sends out an emptying command, the control circuit board opens the first electromagnetic valve and the second electromagnetic valve, and as the whole water pipeline is higher than the water inlet and the water outlet port, enough negative pressure difference is formed in the pipeline, and water in the pipeline flows to the water inlet pipeline through the first backflow pipeline and finally is discharged from the water inlet and outlet port, so as to complete an emptying siphon process.
Description
Technical Field
The utility model relates to a water dispenser capable of emptying residual water.
Background
With the wide application of household water dispensers in daily life, however, the following disadvantages exist in the prior art:
After each time a user takes water, a certain amount of residual water exists in the water heating device and the auxiliary water pipe thereof. Because the part of residual water cannot be removed in time, and the part of residual water is positioned in a drain pipe outside the water heating device, the residual water is not heated all the time. When the user starts the water dispenser again, the user often mixes these unheated residual cold water with water for the first time, and the temperature can not reach preset temperature effect, influences user experience.
Residual water existing in the water channel and the heating tube for a long time is not sufficiently heated and disinfected, and is easy to become a warm bed for bacteria breeding. This not only reduces the hygienic safety of the drinking water, but also presents the potential for risk to the health of the user.
In the traditional design, because the integral water pipeline and the drainage system can not effectively realize the emptying of residual water, the cleanliness and the heating efficiency in the water system are difficult to consider, and the further improvement of the water dispenser product in the aspects of energy conservation, high efficiency and sanitation is restricted.
Disclosure of utility model
The utility model aims to provide a water dispenser capable of draining residual water, which can effectively drain residual water inside through a siphon effect.
The purpose of the utility model is realized in the following way:
The water dispenser capable of emptying residual water comprises a water heating device, a first water pump, a water pipeline, a water outlet nozzle, a first electromagnetic valve and a control circuit, wherein the water pipeline comprises a water inlet pipeline, a water outlet pipeline and a first return pipeline, and a first port of the water inlet pipeline is a water inlet and outlet port used for being connected with a water source;
The inlet of the first water pump is communicated with the second port of the water inlet pipeline, the outlet of the first water pump is communicated with the inlet of the water heating device, the outlet of the water heating device is communicated with the first port of the drainage pipeline, and the second port of the drainage pipeline is communicated with the water outlet nozzle;
The first port of the first return pipeline is communicated with the third port of the water inlet pipeline, and the second port of the first return pipeline is communicated with the inlet of the water heating device;
The height of the water pipeline is higher than that of the water inlet and outlet ports;
the first electromagnetic valve is arranged on the first return pipeline and controls the first return pipeline to be opened or closed;
The first electromagnetic valve, the first water pump and the water heating device are respectively and electrically connected with the control circuit board;
And a second electromagnetic valve is arranged between the second port of the water inlet pipeline and the water inlet and outlet port of the water inlet pipeline.
After the user finishes the water taking action, the control circuit board automatically sends out an emptying instruction, the control circuit board opens the first electromagnetic valve and the second electromagnetic valve, and as the whole height of the water pipeline is higher than that of the water inlet and the water outlet, enough negative pressure difference is formed in the pipeline, water in the water pipeline flows to the water inlet pipeline through the first return pipeline and finally is discharged from the water inlet and the water outlet, and the siphon emptying process is completed.
Through siphon principle, only by the cooperative control of the pipeline height difference and the two solenoid valves, the residual water outside the outlet of the heating device can be automatically sucked out, and no cold water is retained in the system before taking water each time.
After the cold water is emptied, the water heated by the heating device is taken for the first time by a user, and unheated residual cold water cannot be mixed, so that the accurate and stable water output temperature is realized, and the drinking water experience of the user is remarkably improved.
The water pipeline does not store water for a long time, so that the risk of bacterial breeding and scale deposition is reduced, secondary pollution is avoided, and the sanitation and reliability of water outlet are ensured.
The aim of the utility model can be also solved by adopting the following technical measures:
Further, a water-steam separation box is arranged on a drain pipeline between the water heating device and the water outlet nozzle, and a first filtering and sterilizing module is arranged on the drain pipeline between the water heating device and the water-steam separation box.
The water-vapor separation box is additionally arranged between the water heating device and the water outlet nozzle, so that steam and superheated water generated by heating can be fully separated, pure water is ensured to flow out of the water outlet nozzle, and the risk of splashing or scalding caused by steam entrainment is avoided.
A first filtering and sterilizing module is arranged between the water heating device and the water-vapor separation box, so that the water quality is ensured to be clear and sanitary.
Further, the cold water storage device further comprises a cold water tank and a second water pump, wherein the cold water tank is used for storing cold water, the fourth port of the water inlet pipeline is communicated with the inlet of the cold water tank, the outlet of the cold water tank is communicated with the inlet of the second water pump, the outlet of the second water pump is communicated with the third port of the drainage pipeline, and the second water pump is electrically connected with the control circuit board.
After the cold water tank and the second water pump are introduced, cold water, hot water and warm water can be realized in the same equipment, and the purpose of the product is enhanced.
Further, the water pipeline further comprises a second return pipeline, a first port of the second return pipeline is communicated with an outlet of the cold water tank, a second port of the second return pipeline is communicated with a fourth port of the drainage pipeline, the third electromagnetic valve is arranged on the second return pipeline, and the third electromagnetic valve controls the second return pipeline to be opened or closed.
By arranging the second return pipeline and the third electromagnetic valve, an independent siphon or return channel can be formed between the cold water tank and the drainage pipeline, so that the automatic emptying of the residual water of the cold water loop is realized, and the secondary pollution risk caused by long-term water storage in the cold water tank is avoided.
The three-valve cooperative control (the second electromagnetic valve, the third electromagnetic valve and the first electromagnetic valve) enables the emptying scheme of the cold and hot water system to be more flexible, and not only can the hot water system be independently emptied, but also the cold water loop can be specially cleaned when needed.
Further, the position of the water inlet pipeline close to the water inlet and outlet port is provided with a first water level detection module with a water shortage detection function, the first water level detection module is electrically connected with the control circuit board, the outlet of the cold water tank is provided with a second water level detection module with the water shortage detection function, and the second water level detection module is electrically connected with the control circuit board.
The water level detection modules with the water shortage detection function are additionally arranged at the water inlet section and the water outlet of the cold water tank respectively, so that the water quantity of a fresh water source and the water quantity of the cold water tank can be monitored in real time, dry heating or idling is prevented, and the operation safety and stability of the system are improved.
The water level information can be fed back to the control circuit, intelligent early warning and shutdown protection are realized, damage risks of the electric pump and the heating device are reduced, and the service life of the equipment is prolonged.
Further, a check valve is arranged at a position, close to the third port of the drainage pipeline, of the drainage pipeline. .
The check valve prevents residual hot water from flowing backwards into the second water pump, so that damage to the sealing element of the cold water pump and the motor component caused by the hot water is avoided, and the operation safety of equipment is improved.
Further, a fourth electromagnetic valve is arranged between the water inlet and outlet port of the water inlet pipeline and the fourth port of the water inlet pipeline.
Through the combined control of the second electromagnetic valve and the fourth electromagnetic valve, a user can select hot water (only the second electromagnetic valve is opened), cold water (only the fourth electromagnetic valve is opened) or warm water (simultaneously the second electromagnetic valve and the fourth electromagnetic valve are opened), so that the use flexibility and the user experience of the water dispenser are greatly improved.
The second electromagnetic valve and the fourth electromagnetic valve control the water inlet pipeline in a sectionalized mode, different waterways are not interfered with each other, the mutual series flow of cold and hot water in the pipeline is avoided, the temperature purity of water outlet each time is guaranteed, and the water quality is more stable.
When the residual water is emptied, only the second electromagnetic valve and the first electromagnetic valve can be opened to specially empty the hot water loop, and the third electromagnetic valve and the fourth electromagnetic valve can be opened simultaneously to independently drain the residual water in the cold water loop.
By combining the siphon effect, negative pressure evacuation can be automatically formed, the evacuation process is rapid and thorough, and the time and the energy consumption are saved.
Further, the filter sterilizing device also comprises a second filter sterilizing module, wherein an inlet of the second filter sterilizing module is an external water source inlet, and an outlet of the second filter sterilizing module is communicated with the water inlet and outlet port.
After the second filtering and sterilizing module is added, all external water sources entering the system are subjected to prefiltering and sterilizing treatment, so that sediment, suspended matters and most microorganisms can be removed, and the water outlet quality of the whole water dispenser is improved.
The front purification reduces the burden of each module at the pipeline and the rear end, reduces the scaling risk, and provides a cleaner water source foundation for the subsequent heating, filtering, separating and emptying functions.
Further, the water quantity regulating device comprises a pressure limiting valve and a stepping motor, an inlet of the pressure limiting valve is an external water source inlet, an outlet of the pressure limiting valve is communicated with an inlet of the first filtering and sterilizing module, the stepping motor is connected with the pressure limiting valve, the stepping motor is electrically connected with a control circuit board, and the control circuit board controls the valve opening degree of the pressure limiting valve through the stepping motor.
The water quantity regulating device composed of the pressure limiting valve and the stepping motor is introduced, and the control circuit can accurately regulate the water inlet pressure and flow according to the use scene and the water outlet requirement, so that intelligent output of different water quantity levels is realized.
Accurate valve aperture control not only satisfies individualized water demand, can also avoid noise and pipeline impact because of the fluctuation of water pressure brings, promotes user experience and system stability.
Further, the three-way valve further comprises a three-way pipe and a pipeline machine, a first port of the three-way pipe is communicated with an inlet of the pressure limiting valve, a second port of the three-way pipe is communicated with the pipeline machine, and a third port of the three-way pipe is a tap interface for connecting a tap.
Through setting up the three-way pipe structure, the water dispenser both can connect the pipeline machine and realize concentrated water supply, also can directly connect tap and use running water to supply water, satisfies the user's user demand under different scenes, like the temporary arrangement under family, office or the no pipeline condition.
The water dispenser compatible with various water supply modes has more market attraction, is convenient for manufacturers to uniformly design, produce, sell and maintain, reduces the overall cost and improves the competitiveness of products.
The beneficial effects of the utility model are as follows:
According to the siphon emptying device, after a user finishes a water taking action, the control circuit board automatically sends out an emptying instruction, the control circuit board opens the first electromagnetic valve and the second electromagnetic valve, and as the whole height of the water pipeline is higher than that of the water inlet and the water outlet, a sufficient negative pressure difference is formed in the pipeline, water in the water pipeline flows to the water inlet pipeline through the first return pipeline and is finally discharged from the water inlet and the water outlet, and the siphon emptying process is completed.
According to the utility model, through the siphon principle, the residual water outside the outlet of the heating device can be automatically sucked out only by the cooperative control of the pipeline height difference and the two electromagnetic valves, so that no cold water is retained in the system before taking water each time, the water heated by the heating device is used as the water heated by the heating device for the first time after the cold water is emptied, and unheated residual cold water is not mixed, thereby realizing accurate and stable water output temperature and obviously improving the drinking experience of users.
According to the utility model, after the cold water tank and the second water pump are introduced, cold water, hot water and warm water can be realized in the same equipment, and the purpose of the product is enhanced.
According to the utility model, the second return pipeline and the third electromagnetic valve are arranged, so that an independent siphon or return channel can be formed between the cold water tank and the drainage pipeline, the automatic emptying of residual water in the cold water loop is realized, and the secondary pollution risk caused by long-term water storage in the cold water tank is avoided.
According to the utility model, the three-valve cooperative control (the second electromagnetic valve, the third electromagnetic valve and the first electromagnetic valve) enables the emptying scheme of the cold and hot water system to be more flexible, so that the hot water system can be independently emptied, and the cold water loop can be specially cleaned when needed.
According to the utility model, the check valve prevents residual hot water from flowing back into the second water pump, so that damage to a cold water pump sealing element and a motor component caused by the hot water is avoided, and the operation safety of equipment is improved.
Drawings
Fig. 1 is a schematic diagram of a water dispenser capable of draining residual water (only hot water can be drunk) according to embodiment 1.
Fig. 2 is a schematic diagram of a water dispenser capable of draining residual water (capable of drinking hot water, warm water and cold water) according to example 2.
FIG. 3 is a schematic diagram of a water dispenser capable of draining residual water (capable of drinking hot water, warm water and cold water, and having external water source treatment) according to example 3.
Detailed Description
The utility model is further described below with reference to the accompanying drawings and examples:
Referring to fig. 1, in an embodiment 1, a water dispenser capable of evacuating residual water includes a water heating device 1, a first water pump 2, a water pipe, a water outlet nozzle 400, a first electromagnetic valve 3, and a control circuit, wherein the water pipe includes a water inlet pipe 11, a water outlet pipe 12, and a first return pipe 13, and a first port of the water inlet pipe 11 is a water inlet and outlet port 100 for connecting a water source;
The inlet of the first water pump 2 is communicated with the second port of the water inlet pipeline 11, the outlet of the first water pump 2 is communicated with the inlet of the water heating device 1, the outlet of the water heating device 1 is communicated with the first port of the water draining pipeline 12, and the second port of the water draining pipeline 12 is communicated with the water outlet nozzle 400;
The first port of the first return pipeline 13 is communicated with the third port of the water inlet pipeline 11, and the second port of the first return pipeline 13 is communicated with the inlet of the water heating device 1;
the water pipeline is higher than the water inlet and outlet port 100;
The first electromagnetic valve 3 is arranged on the first return pipeline 13, and the first electromagnetic valve 3 controls the first return pipeline 13 to be opened or closed;
the first electromagnetic valve 3, the first water pump 2 and the water heating device 1 are respectively and electrically connected with the control circuit board;
The water inlet pipeline 11 is positioned between the second port of the water inlet pipeline 11 and the water inlet and outlet port 100 of the water inlet pipeline 11, and a second electromagnetic valve 9 is arranged.
Further, a water-vapor separation box 200 is arranged on the water discharge pipeline 12 between the water heating device 1 and the water outlet nozzle 400, and a first filtration and disinfection module 300 is arranged on the water discharge pipeline 12 between the water heating device 1 and the water-vapor separation box 200.
The hot water drinking process of the user comprises the following steps:
When a user drinks hot water, an external water source enters the water dispenser through the water inlet and outlet port 100, is pressurized and heated by the first water pump 2 after being controlled by the second electromagnetic valve 9, is filtered by the water-vapor separation box 200 and the first filtering and sterilizing module 300, and finally flows to the water outlet nozzle 400 through the water outlet pipeline 12 for the user to drink.
The residual water discharging process of the water dispenser comprises the following steps:
After water taking is stopped, the control circuit board instructs to open the first electromagnetic valve 3 and the second electromagnetic valve 9, residual water in the water pipe is sucked back to the water inlet pipeline 11 through the first return pipeline 13 by utilizing the siphon effect, and finally the residual water is discharged through the water inlet and outlet port 100, so that no residual water in the system is ensured, and the water quality and the sanitary safety are effectively improved.
As shown in connection with fig. 2, embodiment 2 differs from embodiment 1 in that embodiment 2 further includes the following:
Further, the cold water tank 4 for storing cold water and the second water pump 5 are further included, the fourth port of the water inlet pipeline 11 is communicated with the inlet of the cold water tank 4, the outlet of the cold water tank 4 is communicated with the inlet of the second water pump 5, the outlet of the second water pump 5 is communicated with the third port of the water draining pipeline 12, and the second water pump 5 is electrically connected with the control circuit board.
Further, the water pipeline further comprises a third electromagnetic valve 6, the water pipeline further comprises a second return pipeline 14, a first port of the second return pipeline 14 is communicated with an outlet of the cold water tank 4, a second port of the second return pipeline 14 is communicated with a fourth port of the drainage pipeline 12, the third electromagnetic valve 6 is arranged on the second return pipeline 14, and the third electromagnetic valve 6 controls the second return pipeline 14 to be opened or closed.
Further, a first water level detection module 500 with a water shortage detection function is arranged at a position, close to the water inlet and outlet port 100, of the water inlet pipeline 11, the first water level detection module 500 is electrically connected with the control circuit board, a second water level detection module 600 with the water shortage detection function is arranged at an outlet of the cold water tank 4, and the second water level detection module 600 is electrically connected with the control circuit board.
Further, the drain line 12 is provided with a non-return valve 7 near a third port of the drain line 12.
Further, a fourth electromagnetic valve 8 is arranged between the water inlet and outlet port 100 of the water inlet pipeline 11 and the fourth port of the water inlet pipeline 11, wherein the water inlet pipeline 11 is positioned.
The hot water drinking process of the user comprises the following steps:
When a user selects to drink hot water, the water inlet pipeline 11 controls water flow to enter the water dispenser through the second electromagnetic valve 9, and the water enters the water heating device 1 for heating after being pressurized by the first water pump 2. The heated water is removed of steam through the water-vapor separation cartridge 200 and is filtered and sterilized through the first filtering and sterilizing module 300, thereby ensuring water quality and sanitation. Finally, the hot water flows to the tap 400 through the water discharge pipe 12 for the user to drink.
The process of drinking warm water by a user comprises the following steps:
When drinking warm water, the fourth solenoid valve 8 and the second solenoid valve 9 are simultaneously opened so that cold water flows from the cold water tank 4 into the drain line 12 to be mixed with hot water. The mixed warm water flows through the water-vapor separation cartridge 200 and the first filtering and sterilizing module 300, and ensures the cleaning and safety of water quality. The warm water is treated and flows to the water outlet nozzle 400 through the water discharge pipeline 12 for users to drink.
The user drinks the cold water:
When the user chooses to drink cold water, the control system closes the second solenoid valve 9 and opens the fourth solenoid valve 8, cold water flowing from the cold water tank 4 through the second water pump 5 into the drain line 12. After the water is treated by the first filtering and sterilizing module 300, the water is ensured to be clean, and finally flows to the water outlet nozzle 400 through the water discharge pipeline 12 for the user to drink.
Stopping the residual water discharging process after water discharging:
When the user stops taking water, the control circuit board controls the first electromagnetic valve 3, the second electromagnetic valve 9 and the third electromagnetic valve 6 to be opened, and the emptying program is started. The residual water of the hot water part flows back to the water inlet pipeline 11 through the first return pipeline 13 and is discharged through the water inlet and outlet port 100, and the residual water of the cold water part flows back to the cold water tank 4 through the second return pipeline 14.
If the water in the cold water tank 4 is required to be discharged, the control circuit board controls the fourth electromagnetic valve 8 to be opened, and the residual water and the water in the cold water tank 4 are discharged through the water inlet and outlet port 100, so that no residual water in the pipeline is ensured.
The protection process of the check valve 7 comprises the following steps:
In the emptying process, the check valve 7 is arranged at a key position of the drainage pipeline 12, hot water is prevented from flowing back to the second water pump 5, potential damage to equipment is avoided, the safety and stability of the system are improved through the design, and the cold water and the residual water of the hot water are ensured to be discharged correctly.
As shown in connection with fig. 3, embodiment 3 differs from embodiment 2 in that embodiment 3 further includes the following:
Further, the filter sterilization device further comprises a second filter sterilization module 700, wherein an inlet of the second filter sterilization module 700 is an external water source inlet, and an outlet of the second filter sterilization module 700 is communicated with the water inlet and outlet port 100.
Further, the water volume adjusting device comprises a pressure limiting valve 800 and a stepping motor 900, wherein an inlet of the pressure limiting valve 800 is an external water source inlet 10, an outlet of the pressure limiting valve 800 is communicated with an inlet of the first filtration and disinfection module 300, the stepping motor 900 is connected with the pressure limiting valve 800, the stepping motor 900 is electrically connected with a control circuit board, and the control circuit board controls the valve opening degree of the pressure limiting valve 800 through the stepping motor 900.
Further, the three-way pipe 20 and the pipeline machine 30 are further included, a first port of the three-way pipe 20 is communicated with an inlet of the pressure limiting valve 800, a second port of the three-way pipe 20 is communicated with the pipeline machine 30, and a third port of the three-way pipe 20 is a tap interface 201 for connecting a tap.
The external water source treatment method comprises the following steps:
In embodiment 3, an external water source enters the water dispenser through the water inlet and outlet port 100, and is first treated by the second filter sterilization module 700. The second filtering and sterilizing module 700 is responsible for filtering impurities and bacteria in an external water source, and ensures the preliminary purification of water quality. Then, the water flow passes through the pressure limiting valve 800, the pressure limiting valve 800 is controlled by the stepping motor 900, and the water quantity and the water pressure of the water inlet are adjusted by controlling the opening degree of the valve, so that the water flow entering the water dispenser is ensured to meet the set requirements.
The outlet of the pressure limiting valve 800 is connected with the first filtering and sterilizing module 300 to further sterilize the water and ensure the sanitation of the water source. After twice filtration and disinfection, water flow enters the water inlet pipeline 11, enters the water heating device 1 or the cold water tank 4 for subsequent treatment, and finally provides safe and clean drinking water for users.
In addition, the water source can be connected with the pipeline machine 30 through the tee pipe 20, directly supply tap water or connect the tap water with the water dispenser through the tap interface 201. The design of tee 20 allows the user to select the water source as desired, providing flexibility.
Through the multiple filtration, disinfection and water quantity regulation design, the water quality of an external water source is strictly ensured, and the water source provided by the water dispenser is ensured to be used by users under the conditions of sanitation, safety and proper water quantity and water pressure.
Claims (10)
1. The water dispenser capable of emptying residual water comprises a water heating device, a first water pump, a water pipeline, a water outlet nozzle, a first electromagnetic valve and a control circuit, and is characterized in that the water pipeline comprises a water inlet pipeline, a water outlet pipeline and a first return pipeline, and a first port of the water inlet pipeline is a water inlet and outlet port used for being connected with a water source;
The inlet of the first water pump is communicated with the second port of the water inlet pipeline, the outlet of the first water pump is communicated with the inlet of the water heating device, the outlet of the water heating device is communicated with the first port of the drainage pipeline, and the second port of the drainage pipeline is communicated with the water outlet nozzle;
The first port of the first return pipeline is communicated with the third port of the water inlet pipeline, and the second port of the first return pipeline is communicated with the inlet of the water heating device;
The height of the water pipeline is higher than that of the water inlet and outlet ports;
the first electromagnetic valve is arranged on the first return pipeline and controls the first return pipeline to be opened or closed;
The first electromagnetic valve, the first water pump and the water heating device are respectively and electrically connected with the control circuit board;
And a second electromagnetic valve is arranged between the second port of the water inlet pipeline and the water inlet and outlet port of the water inlet pipeline.
2. The water dispenser capable of draining residual water according to claim 1, wherein a water-vapor separation box is arranged on a drain pipeline between the water heating device and the water outlet nozzle, and a first filtering and sterilizing module is arranged on the drain pipeline between the water heating device and the water-vapor separation box.
3. The water dispenser capable of draining residual water according to claim 1 or 2, further comprising a cold water tank for storing cold water and a second water pump, wherein the fourth port of the water inlet pipeline is communicated with an inlet of the cold water tank, an outlet of the cold water tank is communicated with an inlet of the second water pump, an outlet of the second water pump is communicated with a third port of the water draining pipeline, and the second water pump is electrically connected with the control circuit board.
4. The water dispenser of claim 3, further comprising a third solenoid valve, wherein the water line further comprises a second return line, wherein the first port of the second return line is connected to the outlet of the cold water tank, the second port of the second return line is connected to the fourth port of the water discharge line, the third solenoid valve is disposed on the second return line, and the third solenoid valve controls the second return line to be opened or closed.
5. The water dispenser capable of draining residual water according to claim 3, wherein a first water level detection module with a water shortage detection function is arranged at a position, close to the water inlet and outlet ports, of the water inlet pipeline, the first water level detection module is electrically connected with the control circuit board, a second water level detection module with the water shortage detection function is arranged at an outlet of the cold water tank, and the second water level detection module is electrically connected with the control circuit board.
6. The water dispenser of claim 3, wherein the drain line is provided with a check valve adjacent to the third port of the drain line.
7. The water dispenser capable of draining residual water as claimed in claim 3, wherein a fourth electromagnetic valve is arranged between the water inlet and outlet ports of the water inlet pipeline and the fourth port of the water inlet pipeline.
8. The water dispenser capable of draining residual water as claimed in claim 1, further comprising a second filtering and sterilizing module, wherein an inlet of the second filtering and sterilizing module is an inlet of an external water source, and an outlet of the second filtering and sterilizing module is communicated with the water inlet and outlet port.
9. The water dispenser capable of draining residual water according to claim 2, further comprising a water quantity adjusting device, wherein the water quantity adjusting device comprises a pressure limiting valve and a stepping motor, an inlet of the pressure limiting valve is an external water source inlet, an outlet of the pressure limiting valve is communicated with an inlet of the first filtration and disinfection module, the stepping motor is connected with the pressure limiting valve, the stepping motor is electrically connected with a control circuit board, and the control circuit board controls the valve opening degree of the pressure limiting valve through the stepping motor.
10. The water dispenser capable of draining residual water of claim 9, further comprising a three-way pipe and a pipeline machine, wherein a first port of the three-way pipe is communicated with an inlet of the pressure limiting valve, a second port of the three-way pipe is communicated with the pipeline machine, and a third port of the three-way pipe is a tap interface for connecting a tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520782945.7U CN224251192U (en) | 2025-04-23 | 2025-04-23 | Water dispenser capable of emptying residual water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520782945.7U CN224251192U (en) | 2025-04-23 | 2025-04-23 | Water dispenser capable of emptying residual water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN224251192U true CN224251192U (en) | 2026-05-19 |
Family
ID=99795954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520782945.7U Active CN224251192U (en) | 2025-04-23 | 2025-04-23 | Water dispenser capable of emptying residual water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN224251192U (en) |
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2025
- 2025-04-23 CN CN202520782945.7U patent/CN224251192U/en active Active
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