Water dispenser capable of automatically discharging residual water

Abstract

The utility model discloses a water dispenser capable of automatically discharging residual water, which is suitable for a water dispenser with a water heating function and comprises a water storage container, a water outlet pipeline, a positive and negative rotation water pump, a controllable pipe valve and a water outlet nozzle, the water storage container is provided with a water outlet below a preset lowest liquid level, the water outlet is communicated to a water inlet pipe orifice of the water outlet pipeline, and a water outlet pipe orifice of the water outlet pipeline is communicated to the water outlet nozzle; the water outlet pipeline is provided with a forward and reverse rotation water pump, a controllable pipe valve is arranged between the forward and reverse rotation water pump and the water outlet nozzle, when water taking is started, the controllable pipe valve is opened firstly, then the forward and reverse rotation water pump starts forward rotation, and the forward and reverse rotation water pump pumps water in the water storage container and conveys the water to the water outlet nozzle through the water outlet pipeline; when water taking is closed, the forward and reverse rotation water pump is firstly started to rotate reversely, water in the water outlet pipeline is pumped back to the water storage container, and then the controllable pipe valve is closed, so that the amount of residual water in the pipeline after water taking can be greatly reduced, even no residual water exists in the pipeline after water taking, and the temperature accuracy when the water taking device outputs hot water or warm water is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of water drinking machines, and in particular relates to a water drinking machine capable of automatically draining residual water. Background Art

[0002] Currently, water dispensers on the market close the valve immediately after the user has taken water, resulting in a section of residual water in the water outlet pipe. The water dispenser will first discharge this section of residual water when the user takes water next time. If the user takes hot water or warm water of a specified temperature, the discharge of this section of residual water will cause the outlet water temperature to be slightly lower than the user's target temperature.

[0003] In order to solve the above problems, the patent document with application number 202121255254.X discloses a device for supplying hot water to a noodle cooker, including a water tank, an electric heating pipe, a water inlet and a water outlet, the electric heating pipe is arranged at the bottom of the water tank, the water outlet is arranged at the bottom of the water tank, and the water inlet is arranged above the water outlet, wherein a one-way valve for water replenishment is provided at the water inlet, and a water pump, a solenoid valve, a first water outlet pipe, a second water outlet pipe and a three-way valve are provided at the water outlet, one end of the first water outlet pipe is connected to the water outlet through the water pump, the first inlet of the three-way valve is connected to the other end of the water outlet pipe, one end of the second water outlet pipe is connected to the outlet of the three-way valve, and the second inlet of the three-way valve is connected to a steam providing device. When water is discharged, the solenoid valve and the water pump are opened, and the heated water flows out from the outlet of the second water outlet pipe. After water is discharged, the steam providing device is opened to provide steam to blow away the residual water in the second water outlet pipe.

[0004] The above-mentioned prior art can blow away the water in the pipeline within a single water injection cycle to achieve a complete water injection operation, but the core idea of ​​the above-mentioned prior art is to blow out the residual water in the water outlet pipe by creating a steam flow, and its technical idea is to supply part of the heated water to the steam generator, which produces additional hot water loss; at the same time, if the blown residual water is directly blown onto a container for receiving hot water or a residual water receiving chassis of the final product, it is easy to cause hot water splashing or high-temperature steam escaping, and there is a certain safety hazard of scalding.

[0005] In summary, the inventor believes that there is room for improvement in the above-mentioned prior art, and the utility model aims to provide a technical solution that does not require additional hot water loss and has high safety to solve the problem of residual water in the water outlet pipe. Summary of the invention

[0006] In view of the problems in the related technology, the utility model proposes a water dispenser that automatically discharges residual water to overcome the above technical problems existing in the existing related technology.

[0007] The technical solution of the utility model is achieved in this way:

[0008] A water dispenser that automatically drains residual water, applicable to a water dispenser with a water heating function, comprising a water storage container, a water outlet pipe, a forward and reverse water pump, a controllable pipe valve and a water outlet nozzle;

[0009] The water storage container is provided with a water outlet below a preset minimum liquid level, the water outlet is directly or indirectly connected to the water inlet of the water outlet pipe, and the water outlet of the water outlet pipe is directly or indirectly connected to the water outlet nozzle;

[0010] The water outlet pipe is provided with the forward and reverse water pump, and the controllable pipe valve is provided between the forward and reverse water pump and the water outlet nozzle.

[0011] When starting to take water, the controllable pipe valve is opened first, and the forward and reverse water pump is started to rotate forward, and the forward and reverse water pump draws water from the water storage container and transports it to the water outlet through the water outlet pipe;

[0012] When the water intake is closed, the forward and reverse water pump starts to reverse first, the water in the water outlet pipe is pumped back to the water storage container, and the controllable pipe valve is closed again.

[0013] In actual applications, the time required for the forward and reverse water pump to pump back the residual water, that is, the time difference between starting the reversal of the forward and reverse water pump and closing the controllable valve, can be known by technicians in this field through testing of specific water channel dimensions and forward and reverse water pump parameters.

[0014] The utility model also discloses another technical solution, that is, an additional return water pipe is led out from the water outlet pipe between the water outlet of the water storage container and the forward and reverse water pump;

[0015] The inlet port of the return water pipe is connected between the water outlet of the water storage container and the forward and reverse water pump. A one-way valve is provided between the inlet port of the return water pipe and the water outlet of the water storage container to allow residual water to flow back from the return water pipe. The outlet port of the return water pipe is connected to above the preset maximum water level of the water storage container and communicates with the interior of the water storage container.

[0016] From the above, it can be seen that the utility model has two main waterway designs. The differences and advantages of the two waterways are:

[0017] 1. The water outlet pipe also serves as a water return pipe. The water pipe of this solution is simple, which is conducive to reducing the size of the water dispenser. There is basically no residual water in the water outlet pipe, which is more suitable for the design of small-sized water dispenser products.

[0018] In the first water circuit scheme, since the water inlet of the water outlet pipe is connected to the water outlet at the bottom of the water storage container, if there is still a lot of drinking water remaining in the water storage container, the forward and reverse water pump needs to overcome a relatively large pressure when pumping the residual water back. Therefore, the forward and reverse water pump is preferably installed and fixed at a position close to the water outlet of the water storage container, which is conducive to the forward and reverse water pump to pump the residual water back to the water storage container forcefully and smoothly.

[0019] 2. An additional return water pipe is led out from the water outlet of the water storage container and the forward and reverse water pump. This solution draws the residual water to the top of the water storage container and returns it for recovery. There is no need to overcome the pressure at the bottom of the water storage container to draw back the residual water as in the first water channel solution. This is more suitable for the design of water dispenser products with larger water storage container volumes.

[0020] In the second water circuit scheme, since the suction force of the forward and reverse water pump is the same when it is rotating forward and reverse, the length of the pipe between the forward and reverse water pump and the water outlet should be controlled to be equal or basically equal to the length of the pipe between the forward and reverse water pump and the outlet port. At the same time, the water outlet and the outlet port should be controlled to be at the same level as much as possible, which is conducive to the stable operation of the water outlet function and the reflux function.

[0021] Preferably, the horizontal height of the return water pipe is higher than the horizontal height of the outlet water pipe between the forward and reverse water pump and the water storage container, and the angle between the axis of the return water pipe at the inlet port and the axis of the outlet water pipe connected to the inlet port and facing the forward and reverse water pump is ≥90°. Although the entry of drinking water into the return water pipe during water discharge does not affect the subsequent recovery of residual water, this angle design can avoid drinking water entering the return water pipe during water discharge as much as possible, thereby avoiding the design of the return water pipe reducing the water output of the water dispenser.

[0022] Preferably, the one-way valve is arranged close to the water outlet of the water storage container, and the inlet port is arranged close to the one-way valve. In the second water channel scheme, the residual water between the water outlet and the inlet port of the water storage container cannot be recovered, so the length of this section of the pipeline should be shortened as much as possible to reduce the amount of residual water in this section.

[0023] Preferably, the utility model further comprises a vertical partition housing;

[0024] The vertical partition housing contains at least the forward and reverse water pump, the water outlet pipeline and the controllable pipe valve. The water storage container is provided on the outside of the first side of the vertical partition housing, and the water outlet nozzle is provided on the second side. The water outlet nozzle and the water storage container are separated on both sides by the vertical partition housing. The palm of the user is often close to the water outlet nozzle due to the water collection operation, and the outer wall temperature of the water storage container is generally high due to the hot water stored. By structurally designing the housing, the water storage container and the water outlet nozzle are separated on both sides of the vertical partition housing, which reduces the probability of the user's palm approaching the water storage container as much as possible to avoid scalding; at the same time, the vertical partition housing can meet the realization of the placement position of each component designed by the utility model.

[0025] Preferably, the bottom of the first side of the vertical partition housing extends outward to form a base, the water storage container is placed on the top surface of the base, and the interior of the base is connected to the interior of the vertical partition housing for the water outlet pipe to pass through.

[0026] Preferably, the first side of the vertical partition housing half surrounds the water storage container, further reducing the probability of the user's palm approaching the water storage container to avoid burns.

[0027] Preferably, a residual water bottom box is provided at the bottom of the second side of the vertical partition housing, the interior of the residual water bottom box has a cavity, the top surface of the residual water bottom box is provided with a water leakage port that penetrates the cavity, and the water leakage port is coaxially arranged with the water outlet, so that the water leakage port also has the function of reminding the user of the placement position of the container (such as a cup, etc.).

[0028] Preferably, the water outlet nozzle has a pipe structure running vertically through itself, the water inlet pipe section of the pipe structure is connected to and communicates with the water outlet pipe port of the water outlet pipe, the water outlet pipe section of the pipe structure is exposed outside the casing of the water dispenser and is covered with an anti-scalding outer ring to avoid scalding hazards and at the same time magnify the position of the water outlet pipe section, making it convenient for the user to align the container in mid-air to receive water.

[0029] More preferably, the outer wall of the anti-scalding outer ring is provided with a plurality of heat dissipation grooves. Although the anti-scalding outer ring has a heat insulating effect, heat conduction with the water outlet pipe section cannot be avoided. The heat dissipation grooves can dissipate the heat of the anti-scalding outer ring as quickly as possible.

[0030] More preferably, the inner wall of the pipe structure of the water outlet is surrounded by a plurality of drainage columns, and the drainage columns are formed by protruding from the inner wall in the direction of the central axis. The size of the drainage columns gradually increases along the water outlet direction of the pipe structure of the water outlet, and the narrow end of the drainage column smoothly transitions with the inner wall, which has the function of guiding the water flow, weakening the water flow collision caused by the water inflow, and thereby reducing the noise caused by the water flow impact and flow.

[0031] Beneficial effects of the utility model:

[0032] Compared with the prior art, the utility model sets a forward and reverse water pump in the water outlet water path to discharge water or suck out residual water in the water outlet pipe. When starting to draw water, the controllable pipe valve is first opened, and the forward and reverse water pump is started to rotate forward, and the forward and reverse water pump draws water in the water storage container and transports it to the water outlet nozzle through the water outlet pipe; when closing the water intake, the forward and reverse water pump is started to reverse first, and the water in the water outlet pipe is pumped back to the water storage container, and the controllable pipe valve is closed again. The utility model does not require additional hot water loss and has high safety. It can greatly reduce the amount of residual water in the pipe after water drawing, and even achieve no residual water in the pipe after water drawing, thereby ensuring the temperature accuracy of the utility model when outputting hot water or warm water. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is one of the structural schematic diagrams of Example 1 of the utility model;

[0034] Figure 2 This is a schematic diagram of the water flow direction of Example 1 of the utility model;

[0035] Figure 3 This is the second structural diagram of the embodiment 1 of the present utility model;

[0036] Figure 4 This is the third structural diagram of the embodiment 1 of the present utility model;

[0037] Figure 5 It is a bottom view of the water outlet and the anti-scalding outer ring of the utility model;

[0038] Figure 6 for Figure 5 AA section view;

[0039] Figure 7 This is a schematic diagram of the water flow direction of Example 2 of the utility model;

[0040] Figure 8 This is a schematic diagram of the return water flow direction of Example 2 of the utility model.

[0041] Marking Description:

[0042] 1. Water outlet pipe;

[0043] 2. water outlet; 201. drainage column;

[0044] 3. Anti-scalding outer ring;

[0045] 4. Controllable pipe valve;

[0046] 5. Forward and reverse water pump;

[0047] 6. Water storage container;

[0048] 7. Vertical partition housing;

[0049] 8. Base;

[0050] 9. Residual water bottom box; 901. Leakage port;

[0051] 10. Return pipe; 1001. Inlet port. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0054] Example 1

[0055] like Figures 1 to 6 As shown, a water dispenser that automatically drains residual water is suitable for a water dispenser with a water heating function, including a water storage container 6, a water outlet pipe 1, a forward and reverse water pump 5, a controllable valve 4 (solenoid valve) and a water outlet 2.

[0056] The water storage container 6 is provided with a water outlet below a preset minimum liquid level, and the water outlet is directly or indirectly connected to the water inlet of the water outlet pipe 1 , and the water outlet of the water outlet pipe 1 is directly or indirectly connected to the water outlet nozzle 2 .

[0057] The water outlet pipe 1 is provided with the forward and reverse water pump 5 , and the controllable pipe valve 4 is provided between the forward and reverse water pump 5 and the water outlet nozzle 2 .

[0058] When starting to take water, the controllable pipe valve 4 is opened first, and the forward and reverse water pump 5 is started to rotate forward, and the forward and reverse water pump 5 draws water from the water storage container 6 and transports it to the water outlet 2 through the water outlet pipe 1;

[0059] When the water intake is closed, the forward and reverse water pump 5 starts to reverse first, the water in the water outlet pipe 1 is pumped back to the water storage container 6, and the controllable pipe valve 4 is closed again.

[0060] In this embodiment, the water outlet pipe 1 also serves as a return water pipe 10. Since the water inlet pipe port of the water outlet pipe 1 is connected to the water outlet at the bottom of the water storage container 6, if there is a lot of drinking water remaining in the water storage container 6, the pressure will be relatively high when the residual water flows back. Therefore, the forward and reverse water pump 5 is installed and fixed at a position close to the water outlet of the water storage container 6 to ensure that the residual water can be pumped back to the water storage container 6 forcefully and smoothly.

[0061] In this embodiment, a vertical partition housing 7 is also included.

[0062] The vertical partition casing 7 accommodates the forward and reverse water pump 5, the water outlet pipe and the controllable valve 4. The water storage container 6 is provided on the outside of the first side of the vertical partition casing 7. The first side of the vertical partition casing 7 half surrounds the water storage container 6.

[0063] In this embodiment, the bottom of the first side of the vertical partition housing 7 extends outward to form a base 8, and the water storage container 6 is placed on the top surface of the base 8. The interior of the base 8 is connected to the interior of the vertical partition housing 7 for the water outlet pipe 1 to pass through.

[0064] The water outlet 2 is disposed on the upper portion of the second side of the vertical partition housing 7 , and the water outlet 2 and the water storage container 6 are separated on two sides by the vertical partition housing 7 .

[0065] In this embodiment, a residual water bottom box 9 is provided at the bottom of the second side of the vertical partition housing 7, and the interior of the residual water bottom box 9 has a cavity. The top surface of the residual water bottom box 9 is provided with a water leakage port 901 that penetrates through the cavity, and the water leakage port 901 is coaxially arranged with the water outlet 2.

[0066] In this embodiment, the water outlet 2 has a pipe structure that vertically runs through itself, and the water inlet pipe section of the pipe structure is connected to and communicates with the water outlet pipe port of the water outlet pipe 1; specifically, the inner wall of the pipe structure of the water outlet 2 is surrounded by a plurality of drainage columns 201, and the drainage columns 201 are formed by protruding from the inner wall toward the center axis, and the size of the drainage columns 201 gradually increases along the water outlet direction of the pipe structure of the water outlet 2, and the narrow end of the drainage column 201 smoothly transitions with the inner wall, which has the function of guiding the water flow, weakening the water flow collision caused by the water inlet, and thereby reducing the noise caused by the water flow impact and flow.

[0067] The water outlet pipe section of the pipeline structure is exposed outside the housing of the water dispenser and is covered with an anti-scalding outer ring 3, and the outer wall of the anti-scalding outer ring 3 is surrounded by a plurality of heat dissipation grooves.

[0068] Example 2

[0069] like Figures 5 to 8 As shown, a water dispenser for automatically draining residual water is suitable for a water dispenser with a water heating function, comprising a water storage container 6, a water outlet pipe 1, a forward and reverse water pump 5, a controllable pipe valve 4 (solenoid valve) and a water outlet 2;

[0070] The water storage container 6 is provided with a water outlet below the preset minimum liquid level, the water outlet is directly or indirectly connected to the water inlet of the water outlet pipe 1, and the water outlet of the water outlet pipe 1 is directly or indirectly connected to the water outlet nozzle 2;

[0071] The water outlet pipe 1 is provided with the forward and reverse water pump 5, and the controllable pipe valve 4 is provided between the forward and reverse water pump 5 and the water outlet nozzle 2;

[0072] When starting to take water, the controllable pipe valve 4 is opened first, and the forward and reverse water pump 5 is started to rotate forward, and the forward and reverse water pump 5 draws water from the water storage container 6 and transports it to the water outlet 2 through the water outlet pipe 1;

[0073] When the water intake is closed, the forward and reverse water pump 5 starts to reverse first, the water in the water outlet pipe 1 is emptied, and then the controllable pipe valve 4 is closed.

[0074] In this embodiment, the water outlet pipe 1 between the water outlet of the water storage container 6 and the forward and reverse water pump 5 leads to a return water pipe 10;

[0075] The inlet port 1001 of the return water pipe 10 is connected between the water outlet of the water storage container 6 and the forward and reverse water pump 5, and a one-way valve is provided between the inlet port 1001 of the return water pipe 10 and the water outlet of the water storage container 6. The outlet port of the return water pipe 10 is connected to above the preset maximum water level of the water storage container 6 and communicates with the interior of the water storage container 6.

[0076] In this embodiment, the level of the return water pipe 10 is higher than the level of the outlet water pipe 1 between the forward and reverse water pump 5 and the water storage container 6 .

[0077] The angle θ between the axis of the return pipe 10 at the inlet port 1001 and the axis of the outlet pipe 1 connected to the inlet port 1001 and facing the forward and reverse water pump 5 is ≥90°. Although the entry of drinking water into the return pipe 10 during water outlet does not affect the subsequent recovery of residual water, this angle design can avoid drinking water entering the return pipe 10 during water outlet as much as possible, thereby avoiding the design of the return pipe from reducing the water output of the water dispenser.

[0078] The one-way valve is arranged close to the water outlet of the water storage container 6, and the inlet port 1001 is arranged close to the one-way valve.

[0079] In this embodiment, the suction force of the forward and reverse water pump 5 is the same when it is rotating forward and reverse. Therefore, the length of the pipe between the forward and reverse water pump 5 and the water outlet 2 is controlled to be basically equal to the length of the pipe between the forward and reverse water pump 5 and the outlet port. At the same time, the water outlet 2 and the outlet port are controlled to be basically at the same horizontal height as much as possible, which is conducive to the stable operation of the water outlet function and the reflux function.

[0080] In this embodiment, a vertical partition housing 7 is also included.

[0081] The vertical partition casing 7 accommodates the forward and reverse water pump 5, the water outlet pipe, the return pipe 10 and the controllable valve 4. The water storage container 6 is provided on the outside of the first side of the vertical partition casing 7, and the water outlet nozzle 2 is provided on the upper part of the second side. The water outlet nozzle 2 and the water storage container 6 are separated on both sides by the vertical partition casing 7.

[0082] In this embodiment, the bottom of the first side of the vertical partition housing 7 extends outward to form a base 8, and the water storage container 6 is placed on the top surface of the base 8. The interior of the base 8 is connected to the interior of the vertical partition housing 7 for the water outlet pipe 1 to pass through; the top of the first side of the vertical partition housing 7 is adaptively provided with a through hole for the return water pipe to extend into the water storage container 6.

[0083] The first side of the vertical partition housing 7 half surrounds the water storage container 6 .

[0084] In this embodiment, a residual water bottom box 9 is provided at the bottom of the second side of the vertical partition housing 7, and the interior of the residual water bottom box 9 has a cavity. The top surface of the residual water bottom box 9 is provided with a water leakage port 901 that penetrates through the cavity, and the water leakage port 901 is coaxially arranged with the water outlet 2.

[0085] In this embodiment, the water outlet 2 has a pipe structure that vertically runs through itself, and the water inlet pipe section of the pipe structure is connected to and communicates with the water outlet pipe port of the water outlet pipe 1; specifically, the inner wall of the pipe structure of the water outlet 2 is surrounded by a plurality of drainage columns 201, and the drainage columns 201 are formed by protruding from the inner wall toward the center axis, and the size of the drainage columns 201 gradually increases along the water outlet direction of the pipe structure of the water outlet 2, and the narrow end of the drainage column 201 smoothly transitions with the inner wall, which has the function of guiding the water flow, weakening the water flow collision caused by the water inlet, and thereby reducing the noise caused by the water flow impact and flow.

[0086] The water outlet pipe section of the pipeline structure is exposed outside the housing of the water dispenser and is covered with an anti-scalding outer ring 3, and the outer wall of the anti-scalding outer ring 3 is surrounded by a plurality of heat dissipation grooves.

[0087] The above two embodiments are both applicablely provided with a controller, a sensor, a heating module, etc., which are conventional designs in the field, and the technicians can add them according to the actual product function design. It is not the innovation of the present utility model and will not be elaborated.

[0088] According to the disclosure and teaching of the above specification, the technicians in the field of the utility model can also change and modify the above implementation mode. Therefore, the utility model is not limited to the specific implementation modes disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.

Claims

1. A water dispenser that automatically drains residual water, suitable for a water dispenser with a water heating function, characterized in that: It includes a water storage container, a water outlet pipe, a forward and reverse water pump, a controllable pipe valve and a water outlet nozzle; The water storage container is provided with a water outlet below a preset minimum liquid level, the water outlet is directly or indirectly connected to the water inlet of the water outlet pipe, and the water outlet of the water outlet pipe is directly or indirectly connected to the water outlet nozzle; The water outlet pipe is provided with the forward and reverse water pump, and the controllable pipe valve is provided between the forward and reverse water pump and the water outlet nozzle; When starting to take water, the controllable pipe valve is opened first, and the forward and reverse water pump is started to rotate forward, and the forward and reverse water pump draws water from the water storage container and transports it to the water outlet through the water outlet pipe; When the water intake is closed, the forward and reverse water pump starts to reverse first, the water in the water outlet pipe is pumped back to the water storage container, and the controllable pipe valve is closed again.

2. The water dispenser for automatically draining residual water according to claim 1, characterized in that: The water outlet of the water storage container and the water pump lead out a return water pipe; The inlet port of the return water pipe is connected between the water outlet of the water storage container and the forward and reverse water pump, a one-way valve is provided between the inlet port of the return water pipe and the water outlet of the water storage container, and the outlet port of the return water pipe is connected to above the preset maximum water level of the water storage container and communicates with the interior of the water storage container.

3. The water dispenser for automatically draining residual water according to claim 2, characterized in that: The horizontal height of the return pipe is higher than the horizontal height of the outlet pipe between the forward and reverse water pump and the water storage container, and the angle between the axis of the return pipe at the inlet port and the axis of the outlet pipe connected to the inlet port and facing the forward and reverse water pump is ≥90°; The one-way valve is arranged close to the water outlet of the water storage container, and the inlet port is arranged close to the one-way valve.

4. The water dispenser for automatically draining residual water according to claim 1, characterized in that: The forward and reverse water pump is installed and fixed at a position close to the water outlet of the water storage container.

5. The water dispenser for automatically draining residual water according to claim 2 or 3, characterized in that: The length of the pipeline between the forward and reverse water pump and the water outlet is equal to the length of the pipeline between the forward and reverse water pump and the outlet port, and the water outlet and the outlet port are located at the same horizontal height.

6. The water dispenser for automatically draining residual water according to any one of claims 1 to 4, characterized in that: It includes a vertical partition housing; The vertical partition casing contains at least the forward and reverse water pump, the water outlet pipeline and the controllable pipe valve. The water storage container is provided on the outside of the first side of the vertical partition casing, and the water outlet nozzle is provided on the second side. The water outlet nozzle and the water storage container are separated on both sides by the vertical partition casing.

7. The water dispenser for automatically draining residual water according to claim 6, characterized in that: The bottom of the first side of the vertical partition housing extends outward to form a base, the top surface of the base is provided with the water storage container, and the interior of the base is communicated with the interior of the vertical partition housing for the water outlet pipe to pass through; The first side of the vertical partition housing semi-encloses the water storage container.

8. The water dispenser for automatically draining residual water according to claim 6, characterized in that: A residual water bottom box is provided at the bottom of the second side of the vertical partition housing, the interior of the residual water bottom box has a cavity, the top surface of the residual water bottom box is provided with a water leakage port penetrating into the cavity, and the water leakage port is coaxially arranged with the water outlet.

9. The water dispenser for automatically draining residual water according to claim 6, characterized in that: The water outlet has a pipe structure that vertically penetrates the water outlet, and the water inlet pipe section of the pipe structure is connected to and communicates with the water outlet pipe opening of the water outlet pipe; The water outlet pipe section of the pipeline structure is exposed outside the casing of the water dispenser and is covered with an anti-scalding outer ring.

10. The water dispenser for automatically draining residual water according to claim 9, characterized in that: The outer wall of the anti-scalding outer ring is provided with a plurality of heat dissipation grooves; The inner wall of the pipe structure of the water outlet is surrounded by a plurality of drainage columns, which are formed by protruding from the inner wall toward the central axis. The size of the drainage columns gradually increases along the water outlet direction of the pipe structure of the water outlet, and the narrow end of the drainage column smoothly transitions to the inner wall.

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