A liquid level stable external pure water tank structure

Abstract

The utility model provides a kind of liquid level stable external pure water tank structure, including base, water tank, adapter assembly and water passing part, water passing part is equipped with independent inlet waterway, outlet waterway and liquid level waterway, adapter assembly is passed through sealing ring with water passing part and ensures waterway independence, and utilize spring drive valve stem system to realize quick water cut-off.The utility model can improve liquid level detection stability, optimize space utilization, reduce residual water, and is suitable for net drinking machine and other equipment.

Description

Technical Field

[0001] This utility model relates to an external pure water tank structure with stable liquid level. Background Technology

[0002] As people's living standards improve, the demand for healthy drinking water is increasing. Water purifiers, as devices that provide high-quality drinking water, are gradually becoming an important choice for modern homes and offices. Currently, most water purifiers on the market use an external pure water tank design and achieve water level detection through built-in liquid level sensing technology.

[0003] However, existing external pure water tank water circuit systems typically consist of an inlet water circuit, an outlet water circuit, and a level detection circuit, relying on a large shared chamber to connect these three circuits. This structure has significant technical drawbacks: the shared chamber is susceptible to water flow fluctuations during inlet water replenishment and outlet water drainage, leading to decreased accuracy in level detection. Furthermore, the large shared chamber not only occupies more internal space, hindering miniaturization and space utilization, but also leaves significant water residue at the joints, affecting hygiene and user experience. Summary of the Invention

[0004] This utility model discloses an external pure water tank structure with stable liquid level, which aims to solve the problems mentioned above.

[0005] The present invention adopts the following solution:

[0006] An external pure water tank structure with stable liquid level includes a water tank that can be placed on a base, a connecting assembly disposed below the water tank, a water-passing component disposed on the base, the connecting assembly being detachably mounted on the water-passing component, and a water-dividing chamber disposed between the water-passing component and the connecting assembly; the water-passing component is provided with an inlet, an outlet, and a liquid level hole, and also includes a first valve stem and a second valve stem movable relative to the water-passing component; the connecting assembly includes a connecting part that can be fixedly connected to the water tank, and the inner circumference of the connecting part is provided with a valve stem that can be movable relative to the water-passing component. The movable rod has a water passage hole on the adapter. When the water tank is placed on the base, the first valve rod and the second valve rod abut against the adapter, and the movable rod abuts against the water passage hole, so that water flows from the inlet hole into the water distribution chamber. The water flow in the water distribution chamber can flow to the water tank through the water hole, and the water flow in the water distribution chamber can communicate with the outlet hole and the liquid level hole. When the water tank is separated from the base, the first valve rod can cut off the liquid level hole, the second valve rod can cut off the inlet hole, and the movable rod can cut off the water passage hole.

[0007] In this embodiment of the utility model, the adapter is provided with an annular adapter chamber in the middle, and an adapter cover is provided in the adapter chamber. The adapter cover is connected to the moving rod so that the two move synchronously relative to the adapter. A spring is adapted between the moving rod and the adapter. When the water tank is separated from the base, the spring prevents the water flow from the water distribution chamber from flowing into the adapter chamber.

[0008] In this embodiment of the utility model, a sealing ring is provided on the adapter cover. When the sealing ring abuts against the side wall of the adapter chamber, the water flow from the water distribution chamber cannot flow into the adapter chamber. When the sealing ring separates from the side wall of the adapter chamber, the water flow from the water distribution chamber flows into the adapter chamber through the water hole and then flows into the water tank.

[0009] In this embodiment of the utility model, the adapter can be inserted into the groove at the upper end of the water-passing component. The water-passing component is equipped with a sealing ring, which can seal with the base and the adapter to form a water-passing cavity. The water-passing hole is located at the bottom of the adapter. The bottom of the adapter is also equipped with a pair of protrusions, which can simultaneously abut against the first valve stem and the second valve stem. The water-passing component is equipped with a top rod. When the water tank is placed on the base, the top rod can abut against the moving rod, so that the moving rod overcomes the spring force and separates the sealing ring from the side wall of the adapter cavity.

[0010] In this embodiment of the utility model, the water-passing component is further provided with a water inlet interface and a water inlet chamber. The water inlet chamber can maintain communication with the water inlet hole. A second sealing ring is sleeved on the outer periphery of the second valve stem. When the second sealing ring abuts against the side wall of the water inlet chamber, the water flow from the water inlet interface cannot flow to the water distribution chamber through the water inlet chamber and the water inlet hole. When the second sealing ring is separated from the side wall of the water inlet chamber, the water flow from the water inlet interface can flow to the water distribution chamber through the water inlet chamber and the water inlet hole.

[0011] In this embodiment of the utility model, the water-passing component is provided with a second valve seat that can cooperate with the second valve stem, and a second spring is provided between the second valve stem and the second valve seat; when the second valve stem is not subjected to external force, the second spring can keep the second sealing ring in abutting fit with the side wall of the water inlet chamber.

[0012] In this embodiment of the utility model, the water-passing component is provided with a second limiting hole that can cooperate with the second valve stem, and the water inlet hole is distributed in a ring around the second limiting hole.

[0013] In this embodiment of the utility model, the water-passing component is further provided with a liquid level interface and a liquid level chamber. The liquid level chamber can maintain communication with the liquid level hole. A first sealing ring is sleeved on the outer periphery of the first valve stem. When the first sealing ring abuts against the side wall of the liquid level chamber, the water tank is disconnected from the liquid level interface. When the first sealing ring is separated from the side wall of the liquid level chamber, the water tank is connected to the liquid level interface.

[0014] In this embodiment of the present invention, the water-passing component is provided with a first valve seat that can cooperate with the first valve stem, and a first spring is provided between the first valve stem and the first valve seat; when the first valve stem is not subjected to external force, the first spring can keep the first sealing ring in abutting contact with the side wall of the liquid level chamber.

[0015] In this embodiment of the present invention, the water-passing component is provided with a first limiting hole that can cooperate with the first valve stem, and the liquid level holes are distributed in a ring around the periphery of the first limiting hole; the water-passing component is also provided with a water outlet interface that can communicate with the water outlet hole.

[0016] Specifically, the working principle is as follows: S1, when the pure water tank is placed on the base, the protrusion abuts against the first and second valve rods on the base, pushing the valve rods to move and opening the inlet and level hole; S2, water flows from the inlet interface into the inlet chamber, through the inlet hole to the distribution chamber, and then through the water hole into the pure water tank; S3, the water flow at the level interface is connected to the water tank, ensuring that the level gauge connected at the rear end is at the same level as the water tank for level detection; S4, at the same time, the water flow in the distribution chamber can flow through the outlet hole to the outlet interface for water discharge. When the pure water tank is separated from the base, S5, three different springs drive the moving rod, the first valve rod, and the second valve rod to reset, instantly sealing the water passage of the pure water tank and the inlet and level hole of the water passage component; S6, the first valve rod cuts off the flow at the level hole, the second valve rod cuts off the flow at the inlet hole, and the moving rod cuts off the flow at the water passage hole, achieving rapid bidirectional water cut-off.

[0017] The technical advantages of this invention are specifically reflected in the following aspects: First, the independent inlet, outlet, and level water path design avoids the influence of a shared chamber on level detection, improving the accuracy of level detection. Second, by utilizing the precise fit between the spring and the sealing ring, combined with the adapter assembly and valve stem system, rapid bidirectional water shut-off is achieved during the installation and disassembly of the pure water tank, effectively reducing residual water. Third, the independent water passage design reduces the structural space occupied, which is conducive to the miniaturization of the entire unit and improves space utilization. Finally, the installation and disassembly process of the pure water tank is simple and reliable, providing a good user experience.

[0018] Meanwhile, by utilizing the precise fit of springs and sealing rings, combined with mechanical structures such as adapter components, water passage components, and valve stems, the pure water tank can be installed and disassembled. The pure water tank is fixed with the adapter component, and the base is fixed with the water passage component and valve stem. The water passage component has three independent water channels: an inlet water channel, an outlet water channel, and a level water channel. When installing the pure water tank, the moving rod of the adapter component and the valve stem of the water passage component are pushed open, and the water passage of the pure water tank automatically connects and conducts with the three water passage holes of the water passage component, enabling smooth water filling. During disassembly, the spring drives the moving rod and valve stem to automatically reset, instantly sealing the water passage of the pure water tank and the water passage holes of the water passage component, achieving rapid bidirectional water shut-off. After disassembly, both the pure water tank itself and the base can achieve bidirectional backflow prevention. The independent water passage ensures the stability of level detection, has a small structural space occupation, and effectively reduces residual water at the joints. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the water tank placed on the base in an embodiment of this utility model.

[0021] Figure 2 This is a cross-sectional view of the water tank placed on the base in an embodiment of the present invention. Figure One .

[0022] Figure 3 This is a cross-sectional view of the water tank placed on the base in an embodiment of the present invention. Figure Two .

[0023] Figure 4 This is a schematic diagram of the water-passing component in an embodiment of this utility model.

[0024] Figure 5 This is a schematic diagram of the adapter component in an embodiment of this utility model. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments.

[0026] Referring to the accompanying drawings, base 1 serves as the fundamental support for the entire device, used to secure the water-passing component 4 and related valve stem systems. Water tank 2, a container for storing pure water, can be placed on base 1 and is detachably connected to base 1 via adapter 3. Adapter 3 is positioned below water tank 2 to allow for the connection and disconnection of the water path between water tank 2 and base 1. Water-passing component 4, mounted on base 1, forms independent inlet, outlet, and level water paths. This independent water path design avoids the influence of traditional shared chambers on level detection, significantly improving the accuracy of level detection.

[0027] The specific structure of the adapter assembly 3 is shown in the figure, including an adapter 5, an adapter cover 6, a moving rod 7, and a spring 8. The adapter 5 is fixedly connected to the water tank 2, and a moving rod 7 that can move relative to it is arranged on its inner circumference. A water passage hole 28 and a pair of protrusions 29 are provided at the bottom, the protrusions 29 being used to abut against the first valve stem 13 and the second valve stem 14. An annular adapter chamber 33 is formed in the middle of the adapter 5, and the adapter cover 6 is arranged inside. The adapter cover 6 moves synchronously with the moving rod 7 to control the water flow in and out. A sealing ring 9 is arranged on the adapter cover 6, which abuts against or separates from the side wall of the adapter chamber to achieve water flow control. The spring 8 is arranged between the moving rod 7 and the adapter 5, preventing water from flowing into the adapter chamber when the water tank 2 is separated from the base 1. This design ensures rapid water flow cutoff during disassembly, reducing residual water.

[0028] The specific structure of the water-passing component 4 is shown in the figure, including an inlet hole 10, an outlet hole 11, a level hole 12, a first valve stem 13, a second valve stem 14, and a push rod 15. The inlet hole 10, outlet hole 11, and level hole 12 are used for water inlet, water outlet, and level detection, respectively. The first valve stem 13 and the second valve stem 14 can move relative to the water-passing component 4 to control the opening and closing of the level hole 12 and the inlet hole 10, respectively. The push rod 15 is disposed on the water-passing component 4 and cooperates with the moving rod 7 to control the state of the sealing ring 9. The water-passing component 4 also includes an inlet interface 16, an inlet chamber 17, a level interface 18, and a level chamber 19. The inlet interface 16 can communicate with or disconnect from the inlet chamber 17 to control the water inlet flow; the second valve stem 14 is fitted with a second sealing ring 21 on its outer periphery, which abuts against or separates from the side wall of the inlet chamber 17 to realize the control of water flow. The liquid level interface 18 can be connected to or disconnected from the liquid level chamber 19 for liquid level detection; the first valve stem 13 is fitted with a first sealing ring 20, which abuts against or separates from the side wall of the liquid level chamber 19 to realize the on / off control of water flow.

[0029] The water-passing component 4 is equipped with a first valve seat 22 and a second valve seat 23, both of which have water passage holes (not shown in the figure) to allow water flow between the interface and the corresponding chamber. The two valve seats cooperate with the first valve stem 13 and the second valve stem 14, respectively. A first spring 24 is arranged between the first valve seat 22 and the first valve stem 13, and a second spring 25 is arranged between the second valve seat 23 and the second valve stem 14. When the first valve stem 13 and the second valve stem 14 are not subjected to external force, the first spring 24 and the second spring 25 respectively ensure that the first sealing ring 20 and the side wall of the liquid level chamber 19, and the second sealing ring 21 and the side wall of the water inlet chamber 17, remain in contact. In addition, the water-passing component 4 is also equipped with a first limiting hole 26 and a second limiting hole 27, which are used to limit the movement and / or range of the first valve stem 13 and the second valve stem 14, respectively; the liquid level hole 12 is distributed in a ring around the first limiting hole 26, and the water inlet hole 10 is distributed in a ring around the second limiting hole 27.

[0030] The adapter 5 can be inserted into the groove 34 at the upper end of the water-passing component 4. The water-passing component 4 is equipped with a sealing ring 30, which can seal with the base 1 and the adapter 5 to form a water-passing cavity. The water-passing hole 28 is located at the bottom of the adapter 5, and the bottom of the adapter 5 is also equipped with a pair of protrusions 29, which can simultaneously abut against the first valve stem 13 and the second valve stem 14. When the water tank 2 is placed on the base 1, the top rod 15 can abut against the moving rod 7, so that the moving rod 7 overcomes the force of the spring 8, and the sealing ring 9 separates from the side wall of the adapter chamber, thereby allowing water to flow through the water hole 28 into the adapter chamber and then into the water tank 2.

[0031] The working principle is as follows: S1, when the pure water tank 2 is placed on the base 1, the protrusion 29 abuts against the first valve rod 13 and the second valve rod 14 on the base 1, pushing the first valve rod 13 and the second valve rod 14 to move, so that the water distribution chamber is connected to the water inlet hole 10 and the liquid level hole 12. S2, the water source flows into the water inlet chamber 17 from the water inlet interface 16, flows to the water distribution chamber 31 through the water inlet hole 10, and then flows into the pure water tank 2 through the water hole 28. S3, the water flow of the liquid level interface 18 is connected to the water tank 2, ensuring that the liquid level sensor connected at the rear end is at the same liquid level as the water tank 2, for liquid level detection. S4, the water flow of the water distribution chamber 31 can flow to the water outlet interface 32 through the water outlet hole 11 for water discharge. S5, when the pure water tank 2 is separated from the base 1, the spring 8 drives the moving rod 7, the first valve rod 13 and the second valve rod 14 to reset, instantly sealing the water passage of the pure water tank 2 and the water passage hole 28 of the adapter assembly 3. S6, the first valve stem 13 cuts off the liquid level hole 12, the second valve stem 14 cuts off the water inlet hole 10, and the moving rod 7 cuts off the water passage hole 28, thus achieving rapid bidirectional water cut-off.

[0032] The technical advantages of this invention are specifically reflected in the following aspects: First, the independent inlet, outlet, and level water path design avoids the influence of a shared chamber on level detection, improving the accuracy of level detection. Second, by utilizing the precise fit of springs and sealing rings, combined with the adapter assembly and valve stem system, rapid bidirectional water cutoff is achieved during the installation and disassembly of the pure water tank, effectively reducing residual water at the joints. Third, the independent water passage design reduces the structural space occupied, which is conducive to the miniaturization of the entire unit and improves space utilization. Finally, the installation and disassembly process of the pure water tank is simple and reliable, providing a good user experience.

[0033] Furthermore, this utility model achieves the installation and disassembly of the pure water tank through the precise coordination of the mechanical structure. The pure water tank 2 is fixed with an adapter component 3, and the base 1 is fixed with a water-passing component 4 and a valve stem. The water-passing component 4 has three independent water passages: an inlet water passage, an outlet water passage, and a liquid level water passage. When installing the pure water tank 2, the moving rod 7 of the adapter component 3 and the valve stem of the base 1 are pushed apart, and the water passage of the pure water tank 2 automatically connects and conducts with the three water passages of the water-passing component 4, enabling smooth water filling. During disassembly, the spring drives the moving rod 7 and the valve stem to automatically reset, instantly sealing the water passage of the pure water tank 2 and the water passage of the adapter component 3, achieving rapid bidirectional water shut-off. After disassembly, both the pure water tank 2 and the base 1 can achieve bidirectional backflow prevention. The independent water passages ensure the stability of liquid level detection, have a small structural space occupancy rate, and effectively reduce residual water at the joints.

[0034] In particular, through the above-mentioned structural design, this utility model solves the problems of inaccurate liquid level detection, low space utilization, and excessive residual water at the joints caused by the shared chamber design of external pure water tanks in the prior art, and has significant technological progress and practical application value.

[0035] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A liquid level stable external pure water tank structure, characterized in that, It includes a water tank that can be placed on a base, an adapter assembly is arranged below the water tank, a water-passing component is arranged on the base, the adapter assembly can be detachably installed on the water-passing component, and a water-dividing chamber is arranged between the water-passing component and the adapter assembly; The water-passing component is provided with a water inlet hole, a water outlet hole and a liquid level hole, and also includes a first valve stem and a second valve stem that can move relative to the water-passing component; The adapter assembly includes an adapter that can be fixedly connected to the water tank, and the inner circumference of the adapter is provided with a movable rod that can move relative to it. The adapter is provided with a water passage hole. When the water tank is placed on the base, the first valve stem, the second valve stem, and the adapter abut against each other, and the moving rod abuts against the water passage component, so that water flows from the inlet hole into the water distribution chamber. The water flow in the water distribution chamber can flow to the water tank through the water hole, and the water flow in the water distribution chamber can communicate with the outlet hole and the liquid level hole. When the water tank is separated from the base, the first valve stem can cut off the liquid level hole, the second valve stem can cut off the inlet hole, and the moving rod can cut off the water passage hole.

2. The liquid level stable external pure water tank structure according to claim 1, characterized in that, The adapter has an annular adapter chamber in the middle, and an adapter cover is installed in the adapter chamber. The adapter cover is connected to a moving rod so that the two move synchronously relative to the adapter. A spring is adapted between the moving rod and the adapter. When the water tank is separated from the base, the spring prevents the water flow from the water distribution chamber from flowing into the adapter chamber.

3. The liquid level stable external pure water tank structure according to claim 2, characterized in that, The adapter cover is equipped with a sealing ring. When the sealing ring abuts against the side wall of the adapter chamber, the water flow from the water distribution chamber cannot flow into the adapter chamber. When the sealing ring separates from the side wall of the adapter chamber, the water flow from the water distribution chamber flows into the adapter chamber through the water hole and then into the water tank.

4. The liquid level stable external pure water tank structure according to claim 3, characterized in that, The adapter can be inserted into the groove at the upper end of the water-passing component. The water-passing component is equipped with a sealing ring, which can seal with the base and the adapter to form a water-passing cavity. The water-passing hole is located at the bottom of the adapter. The bottom of the adapter is also equipped with a pair of protrusions, which can simultaneously abut against the first valve stem and the second valve stem. The water-passing component is equipped with a push rod. When the water tank is placed on the base, the push rod can abut against the moving rod, so that the moving rod overcomes the spring force and separates the sealing ring from the side wall of the adapter cavity.

5. The liquid level stable external pure water tank structure according to any one of claims 1-4, characterized in that, The water-passing component is also equipped with a water inlet interface and a water inlet chamber. The water inlet chamber can maintain communication with the water inlet hole. A second sealing ring is sleeved on the outer periphery of the second valve stem. When the second sealing ring abuts against the side wall of the water inlet chamber, the water flow from the water inlet interface cannot flow to the water distribution chamber through the water inlet chamber and the water inlet hole. When the second sealing ring is separated from the side wall of the water inlet chamber, the water flow from the water inlet interface can flow to the water distribution chamber through the water inlet chamber and the water inlet hole.

6. The liquid level stable external pure water tank structure according to claim 5, characterized in that, The water passage component is equipped with a second valve seat that can cooperate with the second valve stem, and a second spring is arranged between the second valve stem and the second valve seat; when the second valve stem is not subjected to external force, the second spring can keep the second sealing ring in abutting fit with the side wall of the water inlet chamber.

7. The liquid level stable external pure water tank structure according to claim 6, characterized in that, The water-passing component is provided with a second limiting hole that can cooperate with the second valve stem, and the water inlet holes are distributed in a ring around the second limiting hole.

8. The liquid level stable external pure water tank structure according to any one of claims 1-4, 6, 7, characterized in that, The water passage component is also equipped with a liquid level interface and a liquid level chamber. The liquid level chamber can maintain communication with the liquid level hole. A first sealing ring is sleeved on the outer periphery of the first valve stem. When the first sealing ring abuts against the side wall of the liquid level chamber, the water tank is disconnected from the liquid level interface. When the first sealing ring is separated from the side wall of the liquid level chamber, the water tank is connected to the liquid level interface.

9. The liquid level stable external pure water tank structure according to claim 8, characterized in that, The water-passing component is equipped with a first valve seat that can cooperate with the first valve stem, and a first spring is arranged between the first valve stem and the first valve seat; when the first valve stem is not subjected to external force, the first spring can keep the first sealing ring in abutting contact with the side wall of the liquid level chamber.

10. The liquid level stable external pure water tank structure according to claim 9, characterized in that, The water-passing component is provided with a first limiting hole that can cooperate with the first valve stem, and the liquid level holes are distributed in a ring around the periphery of the first limiting hole; the water-passing component is also provided with a water outlet interface that can communicate with the water outlet hole.

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