Water dispenser with self-cleaning function

Abstract

The utility model discloses a water dispenser with a self-cleaning function, which comprises a water supply module, a water outlet module and a water flow driving device used for guiding water flow of the water supply module to the water outlet module, and further comprises a cleaning box used for collecting dripping water flow of the water outlet module, and the cleaning box is provided with a backflow water path communicated with the water supply module. A first purging device is connected between the water inlet end of the water flow driving device and the water supply module, and a second purging device is connected between the water outlet end of the water flow driving device and the water outlet module. The self-cleaning water dispenser has the following advantages and effects that a novel mechanical structure is utilized, and the self-cleaning water dispenser has the effects of self-cleaning, comprehensively killing germs in the whole waterway system of the water dispenser and effectively removing scale deposited on the pipe wall of the whole pipeline of the water dispenser.

Description

Technical Field

[0001] The utility model relates to the technical field of water dispensers, and particularly relates to a water dispenser with a self-cleaning function. Background Art

[0002] A Chinese patent with the publication number of CN210582189U discloses a water outlet preheating system and an instant hot water dispenser for a water dispenser. The water outlet preheating system includes a three-way valve, a water pump, a temperature sensor, a heating element and a controller. The water pump is connected to a water tank through a water supply waterway, and a water outlet is connected to the inlet end of the three-way valve through a water outlet waterway; the heating element is arranged on the water outlet waterway; the temperature sensor is arranged between the heating element and the three-way valve; the first water outlet end of the three-way valve is connected to the water outlet of the water dispenser, and the second water outlet end of the three-way valve is connected to the water supply waterway or the water tank through a return waterway; when the first water outlet end is open and the second water outlet end is closed, it is in the water outlet mode; when the first water outlet end is closed and the second water outlet end is open, it is in the return water mode; the controller controls the three-way valve to switch between the water outlet mode and the return water mode according to the detection value of the temperature sensor.

[0003] However, the above water dispenser has the following disadvantages: the water dispenser enables the hot water heated by the heating element to circulate back and forth between the water outlet waterway and the return waterway through the setting of the return waterway, eliminating the situation that the residual water causes the low water outlet temperature, and the hot water can also sterilize the pipe wall of the waterway during the circulation process. However, this hot water sterilization method has an insufficient sterilization effect, and scale is likely to deposit on the pipe wall of the waterway after long-term use. In addition, the pipeline of its water supply waterway is in a normal temperature environment for a long time, and bacteria are likely to grow, which needs to be improved urgently. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a water dispenser with a self-cleaning function, which has the effects of being self-cleanable, capable of comprehensively killing germs in the entire waterway system of the water dispenser, and effectively removing the scale deposited on the pipe wall of the overall pipeline of the water dispenser.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a water dispenser with a self-cleaning function includes a water supply module, a water outlet module and a water flow driving device for guiding the water flow of the water supply module to the water outlet module, and also includes a cleaning box. The cleaning box is provided with a return waterway communicating with the water supply module. A first purging device is connected between the water inlet end of the water flow driving device and the water supply module, and a second purging device is connected between the water outlet end of the water flow driving device and the water outlet module.

[0006] By adopting the above technical solution, during cleaning, cleaning tablets or cleaning agents are added to the water in the cleaning box and evenly mixed into a cleaning liquid medicine. The water flow driving device is started, and the cleaning liquid medicine in the cleaning box is refluxed to the pipeline of the water supply module through the return water path by the water flow driving device. Then, after passing through the water flow driving device, the cleaning liquid medicine is discharged from the water outlet module into the cleaning box for recycling again. After recycling multiple times, the sterilization and scale removal of the overall pipeline of the water dispenser are realized. When the sterilization and scale removal of the water dispenser by the cleaning liquid medicine are completed, the operation of the water flow driving device is turned off, and the first purging device and the second purging device are used to respectively realize the purging and drying of the pipelines in the water supply module and the water outlet module, achieving the cleaning and drying of the entire water circuit system. It has the effects of self-cleaning, being able to comprehensively kill germs in the entire water circuit system of the water dispenser, and effectively removing the scale deposited on the pipe walls of the overall pipeline of the water dispenser.

[0007] The further setting of the present utility model is that: the first purging device includes a first air pump and a solenoid valve, and the solenoid valve is used to control the on-off of the air flow between the first air pump and the water supply module.

[0008] By adopting the above technical solution, the solenoid valve can control the conduction or closing of the pipeline between the first air pump and the water supply module.

[0009] The further setting of the present utility model is that: the water flow driving device is set as a peristaltic pump, and the second purging device includes a second air pump provided between the water outlet end of the peristaltic pump and the water outlet module.

[0010] By adopting the above technical solution, the peristaltic pump has a two-way conveying ability and good corrosion resistance, which can effectively prevent the corrosion of the liquid medicine caused by the flow of the cleaning liquid medicine, and prolong the service life of the water flow driving device.

[0011] The further setting of the present utility model is that: the water supply module includes a water tank and a flow meter, and the flow meter is connected between the water tank and the water flow driving device.

[0012] By adopting the above technical solution, the flow meter can monitor the water flow rate flowing out of the water tank in real time.

[0013] The further setting of the present utility model is that: the water supply module further includes a first two-way three-way valve. The first water inlet end of the first two-way three-way valve is connected to the water outlet end of the water tank, the second water inlet end of the first two-way three-way valve is connected to the water outlet end of the return water path, and the water outlet end of the first two-way three-way valve is connected to the flow meter.

[0014] By adopting the above technical solution, the first two-way three-way valve can be used to control the opening and closing of its first water inlet end and second water inlet end, thereby controlling the on-off of the water flow between the water tank and the water flow driving device, and between the cleaning box and the water supply module.

[0015] A further setting of the present utility model is as follows: The water dispenser is provided with a water bottle mounting seat, and a second two-way three-way valve is arranged between the water bottle mounting seat and the flow meter, and the first two-way three-way valve is communicated with the second two-way three-way valve.

[0016] By adopting the above technical solution, the second two-way three-way valve can be used to control the on-off of the water flow between the water bottle mounting seat and the water flow driving device, and at the same time, the on-off of the water flow between the water tank and the water flow driving device can be controlled by the cooperation of the first two-way three-way valve and the second two-way three-way valve.

[0017] A further setting of the present utility model is as follows: The water outlet module includes a water outlet pipeline and an instant heating body, and the instant heating body is connected between the water outlet pipeline and the water flow driving device.

[0018] By adopting the above technical solution, the instant heating body can quickly heat the water source coming from the water supply pipeline, so as to achieve the purpose of quickly preparing hot water.

[0019] A further setting of the present utility model is as follows: The water outlet end of the water outlet pipeline is connected with a steam-water separator.

[0020] By adopting the above technical solution, the steam-water separator can quickly separate steam and hot water, preventing the situation that steam is carried when hot water is discharged, resulting in hot water splashing and scalding the skin.

[0021] A further setting of the present utility model is as follows: The water return pipeline includes a first return pipeline and a second return pipeline. The water outlet ends of the first return pipeline and the second return pipeline are connected to the second water inlet end of the first two-way three-way valve, and the water inlet ends of the first return pipeline and the second return pipeline are communicated with the cleaning box.

[0022] By adopting the above technical solution, the setting of multiple return pipelines can enable the cleaning liquid in the cleaning box to be refluxed and transported to the water supply module in a large flow rate, improving the sufficiency of the filling of the cleaning liquid in the pipeline of the entire waterway system, thereby improving the sterilization and scale removal performance of the present utility model. In addition, the setting of multiple return pipelines can also prevent the situation that the liquid cannot return due to the blockage of one return pipeline.

[0023] A further setting of the present utility model is as follows: A one-way valve is arranged between the water inlet end of the first return pipeline and the cleaning box, and the one-way valve allows the liquid in the cleaning box to flow unidirectionally to the first return pipeline.

[0024] By adopting the above technical solution, the setting of the one-way valve can prevent the liquid in the water supply module from directly flowing back to the cleaning box through the first return pipeline.

[0025] To sum up, the present utility model has the following beneficial effects:

[0026] A water dispenser with a self-cleaning function is adopted, which is provided with a water supply module, a water outlet module and a water flow driving device for guiding the water flow of the water supply module to the water outlet module. A cleaning box is arranged below the water outlet end of the water outlet module. At the same time, a return water path is arranged between the cleaning box and the water supply module. In addition, a first purging device is connected between the water inlet end of the water flow driving device and the water supply module, and a second purging device is connected between the water outlet end of the water flow driving device and the water outlet module. During cleaning, cleaning tablets or cleaning agents are added to the water in the cleaning box and evenly mixed into a cleaning liquid medicine. The water flow driving device is started, and the cleaning liquid medicine in the cleaning box is refluxed to the pipeline of the water supply module through the return water path by the water flow driving device. Then, the cleaning liquid medicine passes through the water flow driving device and is discharged from the water outlet module into the cleaning box for recycling again. After multiple cycles, the sterilization and scale removal of the whole pipeline of the water dispenser are realized. When the sterilization and scale removal of the water dispenser by the cleaning liquid medicine are completed, the operation of the water flow driving device is turned off, and the first purging device and the second purging device are used to respectively realize the purging and drying of the pipelines in the water supply module and the water outlet module, so as to achieve the cleaning and drying of the whole water circuit system. It has the effects of being self-cleaning, being able to comprehensively kill the germs in the whole water circuit system of the water dispenser, and effectively removing the scale deposited on the pipe wall of the whole pipeline of the water dispenser. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the structural diagram of the present utility model.

[0028] Figure 2 is the internal structural diagram of the present utility model.

[0029] Figure 3 is the internal structural diagram of the present utility model from another perspective.

[0030] Figure 4 is the connection schematic diagram of the whole water circuit system of the present utility model.

[0031] In the figure: 1. Water supply module; 11. Water tank; 12. First two-position three-way valve; 13. Second two-position three-way valve; 14. Water bottle mounting seat; 15. Flowmeter; 2. Water outlet module; 21. Instant heating element; 22. Water vapor separator; 3. Water flow driving device; 4. Cleaning box; 41. First return pipeline; 411. Check valve; 42. Second return pipeline; 5. First purging device; 51. First air pump; 52. Solenoid valve; 6. Second purging device; 61. Second air pump. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The present utility model will be further described below with reference to the accompanying drawings.

[0033] A water dispenser with a self-cleaning function, as Figures 1-4As shown in the figure, it includes a water supply module 1, a water outlet module 2, and a water flow driving device 3 for guiding the water flow of the water supply module 1 to the water outlet module 2. It also includes a cleaning box 4 for collecting the dripping water flow of the water outlet module 2. The cleaning box 4 is provided with a return water path communicating with the water supply module 1. A first purging device 5 is connected between the water inlet end of the water flow driving device 3 and the water supply module 1, and a second purging device 6 is connected between the water outlet end of the water flow driving device 3 and the water outlet module 2. In this embodiment, the second purging device 6 is set as a second air pump 61; the first purging device 5 includes a first air pump 51 and a solenoid valve 52. The solenoid valve 52 is used to control the on-off of the air flow between the first air pump 51 and the water supply module 1, and the solenoid valve 52 can control the conduction or closing of the pipeline between the first air pump 51 and the water supply module 1; the water flow driving device 3 is set as a peristaltic pump. The second purging device 6 includes a second air pump 61 provided between the water outlet end of the peristaltic pump and the water outlet module 2. The peristaltic pump has a two-way conveying ability and good corrosion resistance, which can effectively prevent the corrosion of the cleaning liquid when the cleaning liquid flows through, and extend the service life of the water flow driving device 3; it should be noted that in its embodiment, the cleaning box 4 can also be set as a separate module, which does not participate in collecting the dripping water droplets of the water outlet module 2 and is only used when it comes to the cleaning process.

[0034] As Figures 2-3 shown, the water supply module 1 includes a water tank 11 and a flow meter 15. The flow meter 15 is connected between the water tank 11 and the water flow driving device 3, and the flow meter 15 can monitor the water flow rate flowing out of the water tank 11 in real time; the water supply module 1 also includes a first two-position three-way valve 12. The first water inlet end of the first two-position three-way valve 12 is connected to the water outlet end of the water tank 11, the second water inlet end of the first two-position three-way valve 12 is connected to the water outlet end of the return water path, and the water outlet end of the first two-position three-way valve 12 is connected to the flow meter 15. By using the first two-position three-way valve 12, the opening and closing of its first water inlet end and second water inlet end can be controlled, so as to control the on-off of the water flow between the water tank 11 and the water flow driving device 3 and between the cleaning box 4 and the water supply module 1; a second two-position three-way valve 13 is connected between the first two-position three-way valve 12 and the flow meter 15. The first water inlet end of the second two-position three-way valve 13 is connected to the water outlet end of the first two-position three-way valve 12, the second water inlet end of the second two-position three-way valve 13 is connected to a water bottle mounting seat 14, and the water outlet end of the second two-position three-way valve 13 is connected to the flow meter 15. By using the second two-position three-way valve 13, the on-off of the water flow between the water bottle mounting seat 14 and the water flow driving device 3 can be controlled, and at the same time, the on-off of the water flow between the water tank 11 and the water flow driving device 3 can be controlled by the cooperation of the first two-position three-way valve 12 and the second two-position three-way valve 13.

[0035] As Figure 4As shown in the figure, the water outlet module 2 includes a water outlet pipeline and an instant heating element 21. The instant heating element 21 is connected between the water outlet pipeline and the water flow driving device 3. The instant heating element 21 can quickly heat the water source coming from the water supply pipeline, so as to achieve the purpose of quickly preparing hot water; the water outlet end of the water outlet pipeline is connected with a steam-water separator 22. The steam-water separator 22 can quickly separate steam and hot water, preventing the situation that steam is entrained when hot water comes out and scalding the skin due to hot water splashing; the return water pipeline includes a first return pipeline 41 and a second return pipeline 42. The water outlet ends of the first return pipeline 41 and the second return pipeline 42 are connected to the second water inlet end of the first two-way three-way valve 12. The water inlet ends of the first return pipeline 41 and the second return pipeline 42 are communicated with the cleaning box 4. The setting of multiple return pipelines can enable the cleaning liquid medicine in the cleaning box 4 to be refluxed and transported to the water supply module 1 in a large flow rate, improving the sufficiency of the filling of the cleaning liquid medicine in the pipeline of the entire water circuit system, thereby improving the sterilization and scale removal performance of the present utility model. In addition, the setting of multiple return pipelines can also prevent the situation of non-reflux caused by the blockage of one return pipeline. In other embodiments, only one return pipeline can also be set; a one-way valve 411 is provided between the water inlet end of the first return pipeline 41 and the cleaning box 4. The one-way valve 411 allows the liquid in the cleaning box 4 to flow unidirectionally to the first return pipeline 41. The setting of the one-way valve 411 can prevent the liquid in the water supply module 1 from directly flowing back to the cleaning box 4 through the first return pipeline 41.

[0036] The basic working principle of the present utility model is as follows: During cleaning, cleaning tablets or cleaning agents are added to the water in the cleaning box 4 and evenly mixed into a cleaning liquid medicine. The water flow driving device 3 is started, and the cleaning liquid medicine in the cleaning box 4 is refluxed to the pipeline of the water supply module 1 through the return water pipeline by using the water flow driving device 3. Then, the cleaning liquid medicine is discharged from the water outlet module 2 to the cleaning box 4 again after passing through the water flow driving device 3 and circulated. After circulating multiple times, the sterilization and scale removal of the entire pipeline of the water dispenser are realized. When the sterilization and scale removal of the water dispenser by the cleaning liquid medicine are completed, the operation of the water flow driving device 3 is turned off, and the electromagnetic valve 52 is opened. The first air pump 51 is used to blow dry gas back to the water supply module 1. The dry gas is blown to the second two-way three-way valve 13 after passing through the flow meter 15. Then, the opening of the two inlet ends of the second two-way three-way valve 13 can be controlled to realize the purging and cleaning of the water bottle mounting seat 14 and the first two-way three-way valve 12. The dry gas blown to the first two-way three-way valve 12 realizes the purging of the water tank 11 and the return water pipeline direction through the opening of the two inlet ends of the first two-way three-way valve 12, so as to realize the cleaning and drying of the pipeline of the entire water circuit system, having the effects of self-cleaning, being able to comprehensively kill germs in the entire water circuit system of the water dispenser, and effectively removing the scale deposited on the pipe wall of the entire pipeline of the water dispenser.

[0037] The above are only the preferred embodiments of the present utility model. Therefore, all equivalent changes or modifications made according to the structures, features and principles described in the scope of the patent application of the present utility model are included in the scope of the patent application of the present utility model.

Claims

1. A water dispenser with a self-cleaning function, comprising a water supply module (1), a water outlet module (2), and a water flow driving device (3) for guiding the water flow of the water supply module (1) to the water outlet module (2), characterized in that: It further includes a cleaning box (4). The cleaning box (4) is provided with a return water path communicating with the water supply module (1). A first purging device (5) is connected between the water inlet end of the water flow driving device (3) and the water supply module (1), and a second purging device (6) is connected between the water outlet end of the water flow driving device (3) and the water outlet module (2).

2. The water dispenser with self-cleaning function according to claim 1, characterized in that: The first purging device (5) includes a first air pump (51) and a solenoid valve (52). The solenoid valve (52) is used to control the on-off of the air flow between the first air pump (51) and the water supply module (1).

3. The water dispenser with self-cleaning function according to claim 1, characterized in that: The water flow driving device (3) is a peristaltic pump. The second purging device (6) includes a second air pump (61) provided between the water outlet end of the peristaltic pump and the water outlet module (2).

4. The water dispenser with a self-cleaning function according to claim 1, characterized in that: The water supply module (1) includes a water tank (11) and a flow meter (15). The flow meter (15) is connected between the water tank (11) and the water flow driving device (3).

5. The water dispenser with a self-cleaning function according to claim 4, characterized in that: The water supply module (1) further includes a first two-position three-way valve (12). The first water inlet end of the first two-position three-way valve (12) is connected to the water outlet end of the water tank (11), the second water inlet end of the first two-position three-way valve (12) is connected to the water outlet end of the return water path, and the water outlet end of the first two-position three-way valve (12) is connected to the flow meter (15).

6. The water dispenser with a self-cleaning function according to claim 5, characterized in that: The water dispenser is provided with a water bottle mounting seat (14). A second two-position three-way valve (13) is provided between the water bottle mounting seat (14) and the flow meter (15). The first two-position three-way valve (12) is communicated with the second two-position three-way valve (13).

7. The water dispenser with self-cleaning function according to claim 1, characterized in that: The water outlet module (2) includes a water outlet pipeline and an instant heating element (21). The instant heating element (21) is connected between the water outlet pipeline and the water flow driving device (3).

8. The water dispenser with a self-cleaning function according to claim 7, characterized in that: The water outlet end of the water outlet pipeline is connected to a water vapor separator (22).

9. The water dispenser with self-cleaning function according to claim 5, characterized in that: The return water path includes a first return pipeline (41) and a second return pipeline (42). The water outlet ends of the first return pipeline (41) and the second return pipeline (42) are connected to the second water inlet end of the first two-position three-way valve (12), and the water inlet ends of the first return pipeline (41) and the second return pipeline (42) are communicated with the cleaning box (4).

10. The water dispenser with a self-cleaning function according to claim 9, wherein: A check valve (421) is provided between the water inlet end of the first return pipeline (41) and the cleaning box (4). The check valve (421) allows the liquid in the cleaning box (4) to flow unidirectionally to the first return pipeline (41).

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