A water dispenser residual water removing device
Patent Information
- Application Number
- CN202522027408.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-09-22
AI Technical Summary
[0003]上述的加热饮水机无需对水箱进行改进,冷热水切换方便,但是出水后,出水管路中会有余水,余水不仅会增加接头处的泄漏概率,而且下次需要热水时,余水会降低出水温度,影响使用效果
[0010] Compared with existing technologies, the residual water removal device of this water dispenser can prevent residual water from remaining in the water outlet pipe, which not only reduces the risk of leakage, but also ensures that the absence of residual water in the water outlet pipe will not affect the temperature of the next water dispensed, resulting in better performance.
Smart Images

Figure CN224655109U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical technology and relates to a water dispenser component, particularly to a water dispenser residual water removal device. Background Technology
[0002] Water dispensers are common household appliances that provide users with drinking water at different temperatures. The applicant has also designed a heated water dispenser and applied for a patent [Application No.: 202420603681.X; Authorization Announcement No.: CN222032114U], which includes a housing, a water tank, an inlet pipe, and an outlet pipe. The water tank, inlet pipe, and outlet pipe are all located inside the housing. The housing has an inlet connector connected to the inlet pipe and an outlet connector connected to the outlet pipe. The inlet pipe is connected to an inlet branch pipe one, which connects to the bottom of the water tank. The inlet pipe is also connected to an inlet branch pipe two, which connects to the outlet pipe. The top of the water tank is connected to an outlet branch pipe. The inlet pipe, inlet branch pipe one, and inlet branch pipe two are equipped with a switching mechanism for switching on and off the inlet pipe, inlet branch pipe one, and inlet branch pipe two. The housing has a control component for controlling the operation of the switching mechanism.
[0003] The aforementioned heated water dispenser does not require any modifications to the water tank and is convenient for switching between hot and cold water. However, after water is dispensed, there will be residual water in the water outlet pipe. This residual water not only increases the probability of leakage at the joints, but also lowers the water temperature when hot water is needed next time, affecting the performance. Summary of the Invention
[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a water dispenser water removal device that can remove residual water and has a good working effect.
[0005] The purpose of this utility model can be achieved through the following technical solution: A water dispenser residual water removal device includes a water tank, an inlet pipe, and an outlet pipe. The bottom end of the inlet pipe is connected to the bottom of the water tank, and the top end of the inlet pipe is set higher than its bottom end. The outlet pipe is connected to the top of the water tank. The device is characterized in that a water flow sensor is provided on the inlet pipe and / or the outlet pipe. The outlet pipe is connected to a drain pipe that communicates with it. The drain pipe is provided with an opening and closing device that is kept in a normally open state. The water flow sensor and the opening and closing device are both connected to a control board. When the water flow sensor detects a water flow signal, the control board controls the opening and closing device to close.
[0006] In the aforementioned water dispenser water removal device, the top end of the water outlet pipe is positioned close to the top end of the water inlet pipe.
[0007] In the above-mentioned water dispenser residual water removal device, the middle part of the water outlet pipe has a downward curved section, the drain pipe is connected to the curved section, and the bottom end of the drain pipe is set lower than the curved section.
[0008] In the aforementioned water dispenser residual water removal device, the opening and closing component is a solenoid valve.
[0009] In another scenario, in the aforementioned water dispenser's residual water removal device, the opening and closing element is an electric ball valve. The electric ball valve remains normally open, preventing residual water from accumulating in the drain pipe. When water enters the inlet pipe, the electric ball valve closes to seal the drain pipe, allowing water to flow smoothly from the outlet pipe. After the water has finished flowing, the electric ball valve reopens, and the drain pipe discharges the residual water from the outlet pipe.
[0010] Compared with existing technologies, the residual water removal device of this water dispenser can prevent residual water from remaining in the water outlet pipe, which not only reduces the risk of leakage, but also ensures that the absence of residual water in the water outlet pipe will not affect the temperature of the next water dispensed, resulting in better performance. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the water dispenser's residual water removal device.
[0012] In the diagram, 1 is the water tank; 2 is the inlet pipe; 3 is the outlet pipe; 31 is the bend; 4 is the water flow sensor; 5 is the drain pipe; and 6 is the solenoid valve. Detailed Implementation
[0013] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0014] like Figure 1 As shown, the water dispenser's residual water removal device includes a water tank 1, an inlet pipe 2, and an outlet pipe 3. The bottom end of the inlet pipe 2 is connected to the bottom of the water tank 1, and the top end of the inlet pipe 2 is set higher than its bottom end. The outlet pipe 3 is connected to the top of the water tank 1. A water flow sensor 4 is provided on the inlet pipe 2 and / or the outlet pipe 3. The outlet pipe 3 is connected to a drain pipe 5, which is in communication with it. The drain pipe 5 is provided with an opening and closing device that is kept in a normally open state. The water flow sensor 4 and the opening and closing device are both connected to the control board. When the water flow sensor 4 detects a water flow signal, the control board controls the opening and closing device to close.
[0015] During the operation of this water dispenser's residual water removal device, when water flows out of the outlet pipe 3 and in the inlet pipe 2, the water flow sensor 4 detects the water flow signal in the inlet pipe 2 and / or the outlet pipe 3. The control board then controls the opening and closing mechanism to close, the drain pipe 5 closes, and water flows smoothly out of the outlet pipe 3. When the water flow sensor 4 no longer detects the water flow signal in the inlet pipe 2 and / or the outlet pipe 3, the opening and closing mechanism returns to its normally open state, and the drain pipe 5 drains the residual water from the outlet pipe 3, thus preventing residual water from remaining in the outlet pipe 3. This not only reduces the risk of leakage but also ensures that the absence of residual water in the outlet pipe 3 will not affect the next water temperature, resulting in good performance. In this embodiment, the inlet pipe 2 is equipped with a water flow sensor 4. When the outlet pipe 3 needs to dispense water, the inlet pipe 2 needs to receive water, similar to existing instant hot water dispensers. The connection between the opening and closing mechanism, the water flow sensor 4, and the control board, as well as the logic programming of the control board, are all existing technologies and will not be described in detail here.
[0016] To elaborate further, the top of the outlet pipe 3 is positioned close to the top of the inlet pipe 2, which facilitates the installation and arrangement of the pipeline and subsequent joints. The outlet pipe 3 has a downward-curving section 31 in the middle, to which the drain pipe 5 is connected. The bottom of the drain pipe 5 is positioned below the bend section 31. The bend section 31 facilitates the connection of the drain pipe 5, and the bottom of the drain pipe 5 being below the bend section 31 ensures smooth and thorough drainage of residual water with high efficiency.
[0017] In this embodiment, the opening and closing device is a solenoid valve 6. The solenoid valve 6 remains open so that no residual water will accumulate in the drain pipe 5. When water enters the inlet pipe 2, the solenoid valve 6 closes to close the drain pipe 5, allowing water to flow smoothly out of the outlet pipe 3. After the water has finished flowing out, the solenoid valve 6 opens again, and the drain pipe 5 discharges the residual water from the outlet pipe 3.
[0018] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.
Claims
1. A water dispenser residual water removal device, comprising a water tank (1), an inlet pipe (2), and an outlet pipe (3), wherein the bottom end of the inlet pipe (2) is connected to the bottom of the water tank (1), the top end of the inlet pipe (2) is set higher than its bottom end, and the outlet pipe (3) is connected to the top of the water tank (1), characterized in that, The inlet pipe (2) and / or outlet pipe (3) are equipped with a water flow sensor (4). The outlet pipe (3) is connected to a drain pipe (5) that communicates with it. The drain pipe (5) is equipped with an opening and closing device that is kept in a normally open state. The water flow sensor (4) and the opening and closing device are both connected to the control board. When the water flow sensor (4) detects a water flow signal, the control board controls the opening and closing device to close.
2. The water dispenser residual water removal device according to claim 1, characterized in that, The top end of the outlet pipe (3) is located close to the top end of the inlet pipe (2).
3. The water dispenser residual water removal device according to claim 2, characterized in that, The outlet pipe (3) has a downward-curved section (31) in the middle, the drain pipe (5) is connected to the curved section (31), and the bottom end of the drain pipe (5) is set below the curved section (31).
4. A water dispenser residual water removal device according to claim 3, characterized in that, The opening and closing component is a solenoid valve (6).
5. A water dispenser residual water removal device according to claim 3, characterized in that, The aforementioned opening and closing component is an electric ball valve.
Citation Information
Patent Citations
Heating water dispenser
CN222032114U