Drip-proof pure water kettle and pure drinking machine

Abstract

The application discloses a drip-proof pure water kettle and a pure drinking machine. The drip-proof pure water kettle comprises a kettle body, a flow guide part is arranged at the bottom of the kettle body, a kettle bottom channel penetrating through the inner cavity of the kettle body is arranged in the flow guide part, the kettle body is fixedly provided with a cover part, the cover part has a cover part closing the lower end opening of the flow guide part, a water passing opening communicating with the kettle bottom channel is arranged on the side wall of the flow guide part, a flexible sealing ring and a positioning ring which can slide along the axial direction of the flow guide part are arranged on the outer side of the flow guide part, the positioning ring is located on the outer side of the flexible sealing ring and is connected with the flexible sealing ring; when the positioning ring is moved upward under the external pushing force, the flexible sealing ring is synchronously moved upward, the flexible sealing ring is separated from the cover part and the water passing opening is opened; when the positioning ring drives the flexible sealing ring to move downward, the flexible sealing ring abuts against the cover part and the water passing opening is closed. The technical scheme can effectively prevent the water remaining in the kettle bottom channel from dripping due to the lifting of the pure water kettle, solves the problem of dripping water when the kettle is lifted, and improves the user experience.

Description

Technical Field

[0001] This application relates to the field of drinking water treatment equipment technology, specifically to a drip-proof pure water pitcher and a water purifier. Background Technology

[0002] Water purifiers (such as countertop and stand-up models) typically consist of a water pitcher and a base. The pitcher stores purified drinking water, while the base has a water flow channel connecting to the pitcher, handling both filling and discharging water. When the pitcher is placed on the base, the bottom channel of the pitcher connects with the water flow channel of the base; after removing the pitcher, the user can use it independently.

[0003] In existing systems, a top valve core is installed inside the bottom channel of a pure water kettle to control the opening and closing of the bottom channel; a bottom valve core is installed inside the water flow channel of the kettle base to control the opening and closing of the water flow channel. When the pure water kettle is placed on the kettle base, the top and bottom valve cores are subjected to a mutual pushing force. The top valve core moves upward to open the upper opening of the bottom channel, and the bottom valve core moves downward to open the water flow channel of the kettle base. At this time, water can flow into and out of the pure water kettle through the bottom channel. When the pure water kettle is removed from the kettle base, the top and bottom valve cores lose their mutual pushing force: the top valve core moves downward under the action of a spring to close the upper opening of the bottom channel, and the bottom valve core moves upward under the action of a spring to close the water flow channel of the kettle base.

[0004] However, the above solution has some problems during use: when the water pitcher is removed from the base, some water remains in the bottom channel. As the pitcher is lifted, this residual water drips from the lower opening of the bottom channel under gravity, causing dripping. This dripping wets the countertop and floor, increasing the user's cleaning burden. Especially in humid environments such as kitchens, the water droplets may cause bacteria to grow on the countertop, affecting the user experience. To solve the dripping problem, some improvements have been made in existing technologies. For example, a valve structure is added to the bottom channel to prevent water from dripping. However, the valve structure is complex to install and can easily cause spatial interference between the upper and lower valve cores, increasing water flow resistance and affecting water inlet and outlet efficiency. Utility Model Content

[0005] The purpose of this application is to solve the above-mentioned technical problems and provide a drip-proof pure water pitcher. Through the design of the positioning ring and the flexible sealing ring, the problem of water dripping when the pitcher is lifted is effectively improved.

[0006] The technical solution adopted in this application is as follows:

[0007] A leak-proof pure water pitcher includes a pitcher body with a flow guide at the bottom. The flow guide has a bottom channel penetrating the inner cavity of the pitcher body. A lid is fixedly mounted on the pitcher body. The lid has a closing portion that closes the lower opening of the flow guide. A water outlet communicating with the bottom channel is opened on the side wall of the flow guide. A flexible sealing ring and a positioning ring, which can slide along the axial direction, are fitted on the outer side of the flow guide. The positioning ring is located outside the flexible sealing ring and connected to it. When the positioning ring is pushed upwards by an external force, it simultaneously moves the flexible sealing ring upwards, causing the flexible sealing ring to disengage from the lid and open the water outlet. When the positioning ring moves the flexible sealing ring downwards, it causes the flexible sealing ring to abut against the lid and close the water outlet.

[0008] In this technical solution, a bottom channel penetrating the inner cavity of the kettle is provided within the flow guide section at the bottom of the kettle body. A lid is also provided, which closes the lower opening of the flow guide section, solving the problem of water dripping from the lower opening of the bottom channel when the kettle is lifted. A water outlet on the side wall of the flow guide section, along with a flexible sealing ring and a positioning ring that can slide axially on the outer side, enables flexible control of the water flow channel opening and closing. When the pure water kettle is placed on the kettle base (with an external pushing force), the positioning ring moves upward under the external pushing force, simultaneously causing the flexible sealing ring to move upward, disengaging from the lid and opening the water outlet. This ensures smooth normal water inlet and outlet flow without affecting the original function of the water purifier. When the water bottle is removed from the base (without external pushing force), the positioning ring moves the flexible sealing ring downwards, causing it to abut against the lid and seal the inlet. This effectively prevents water from leaking out of the bottle and trapping any remaining water in the bottom channel, thus avoiding dripping as the bottle is lifted. By using a positioning ring to connect the flexible sealing ring, the positioning ring acts as a force-bearing structure against external pushing forces, which is more advantageous than directly using the flexible sealing ring. This improves the structural stability and lifespan of the flexible sealing ring, as well as its tightness against the flow guide, ensuring a superior seal.

[0009] The outer circumferential surface of the flexible sealing ring is provided with an upper outer ring rib and a lower outer ring rib distributed at intervals. The inner wall of the positioning ring is embedded between the upper outer ring rib and the lower outer ring rib to form an axial limit, so that the positioning ring and the flexible sealing ring move synchronously in the axial direction.

[0010] In this technical solution, the inner wall of the positioning ring is embedded between the upper outer ring rib and the lower outer ring rib to form an axial limit, which ensures that the positioning ring and the flexible sealing ring can move synchronously in the axial direction. This allows the two to move in a coordinated manner when subjected to external pushing force or reset force, accurately controlling the opening and closing of the water inlet and avoiding problems such as seal failure or inability to pass water normally due to asynchronous movement of the two. This further ensures the reliable realization of the anti-drip function.

[0011] The positioning ring is provided with a plurality of push protrusions at circumferential intervals. The push protrusions are used to withstand external push forces. At least a portion of the area of ​​the push protrusions projected on the horizontal plane is located outside the projections of the flexible sealing ring and the cover member on the horizontal plane, respectively.

[0012] In this technical solution, the positioning ring is provided with multiple push protrusions at intervals around its circumference, and at least a portion of its projection on the horizontal plane is located outside the projections of the flexible sealing ring and the cover piece on the horizontal plane, respectively. This facilitates the external structure (such as the push structure on the kettle seat) to accurately apply the push force to the positioning ring, ensuring that the push position is reasonable and effective. This allows the positioning ring to smoothly drive the flexible sealing ring to move as expected, ensuring that the entire anti-drip mechanism can respond normally during the placement and removal of the pure water kettle, maintaining good sealing and water flow switching.

[0013] The outer diameter of the cover portion is larger than the outer diameter of the guide portion. The cover portion abuts against the bottom edge of the guide portion, and the portion protruding from the bottom edge of the guide portion is used to abut against and seal with the flexible sealing ring.

[0014] In this technical solution, the outer diameter of the cover is larger than the outer diameter of the guide section and abuts against the bottom edge of the guide section. The part protruding from the bottom edge of the guide section forms an annular sealing step, which is used to abut against the flexible sealing ring for sealing. This increases the sealing contact area, improves the uniformity of sealing pressure, and enhances the sealing effect. This allows the flexible sealing ring to fit more tightly when closing the water outlet, effectively preventing residual water from seeping out and strengthening the anti-drip capability. It ensures that even when the pure water kettle is shaken, dripping can be avoided as much as possible.

[0015] The lid assembly includes a positioning part that is fixedly connected to the lid part. The positioning part is provided with multiple snap-fit ​​protrusions. The snap-fit ​​protrusions pass through the upper opening of the bottom channel of the pot and are snapped onto the bottom wall of the inner cavity of the pot.

[0016] In this technical solution, the lid assembly passes through the upper opening of the bottom channel of the kettle and is engaged with the bottom wall of the kettle body through multiple buckle protrusions set in the positioning part. This achieves a stable fixation of the lid assembly on the kettle body, preventing it from loosening or shifting during use. It ensures that the lid assembly, flexible sealing ring and other related components can always function accurately according to the design requirements, maintain the stability of the anti-drip function, and ensure the reliability of the entire pure water kettle structure.

[0017] The inner circumferential surface of the flexible sealing ring is provided with sealing ring ribs. When the flexible sealing ring abuts against the cover, the abutment position of the sealing ring ribs against the guide portion is located above the water outlet.

[0018] In this technical solution, when the flexible sealing ring abuts against the cover, the abutment position of the sealing ring rib and the guide part is located above the water inlet. This design allows the sealing ring rib to form an interference fit sealing barrier in the area above the water inlet when the water inlet is closed, further preventing residual water from seeping out from near the water inlet, enhancing the overall sealing performance, and minimizing the risk of dripping.

[0019] The bottom of the guide section is provided with multiple notches spaced circumferentially, and the multiple notches constitute the water inlet.

[0020] In this technical solution, multiple notches at the bottom edge of the guide section constitute the water passage, which not only provides sufficient water passage space to meet the needs of water flow when the flow rate is high, but also adapts to the circumferential sealing structure of the flexible sealing ring, making it easy for the flexible sealing ring to accurately close and open it. In addition, it can simplify the processing technology of the water passage and reduce machining costs.

[0021] An elastic reset member is provided between the bottom wall of the kettle body and the positioning ring, and the elastic reset member is used to drive the positioning ring to move downward.

[0022] In this technical solution, the positioning ring is driven to move downward by the elastic reset component, so that after the pure water kettle is removed from the kettle base, the positioning ring can automatically and promptly drive the flexible sealing ring back to the position of closing the water inlet. No additional operation is required, which ensures the timeliness and automaticity of the anti-drip function, further improves the convenience of use for users, and ensures that residual water droplets can be reliably prevented after each use.

[0023] This application provides a water purifier, comprising a drip-proof pure water jug ​​as described above and a jug base for placing the drip-proof pure water jug. The jug base has a coupling structure, which includes a coupling tube. The coupling tube has a water flow channel, and a valve core is provided in the water flow channel. When the pure water jug ​​is placed on the jug base, the coupling tube pushes the positioning ring upward, causing the positioning ring to move the flexible sealing ring upward and open the water inlet. At the same time, the lid pushes the valve core downward to open the water flow channel, so that the inner cavity of the jug is connected to the water flow channel through the jug bottom channel and the water inlet. When the pure water jug ​​is removed from the jug base, the positioning ring moves the flexible sealing ring downward, causing the flexible sealing ring to abut against the lid and close the water inlet.

[0024] In this technical solution, an anti-drip pure water pitcher is applied to a water purifier, which effectively overcomes the problem of water dripping when the pure water pitcher is removed from the base, a problem that bothers users. Specifically, when the pure water pitcher is placed on the base, the coupling tube of the base pushes the positioning ring upward, which causes the positioning ring to move the flexible sealing ring upward and open the water inlet. At the same time, the lid pushes the valve core downward to open the water flow channel, ensuring that the inner cavity of the pitcher is connected to the water flow channel through the bottom channel and the water inlet, realizing normal and smooth water inlet and outlet functions, and meeting the user's basic functional needs for the water purifier. When the pure water pitcher is removed from the base, thanks to the internal structural design of the pitcher, the positioning ring moves the flexible sealing ring downwards, causing the flexible sealing ring to abut against the lid and seal the water inlet. This effectively prevents residual water droplets from dripping from the bottom of the pitcher, minimizing the risk of water droplets causing wetness and soiling to the countertop, floor, and other surrounding areas. This reduces the cleaning burden on users and also effectively lowers the hygiene risks of bacteria growth on the countertop due to dripping water in humid environments, significantly improving the user experience.

[0025] When the coupling tube abuts against the positioning ring, the flexible sealing ring abuts and seals against the inner wall of the coupling tube.

[0026] In this technical solution, when the coupling tube abuts against the positioning ring, the flexible sealing ring abuts against the inner wall of the coupling tube to seal. When the pure water kettle is placed on the kettle base and water is flowing, it not only ensures that the normal water flow path is smooth, but also increases the sealing guarantee, preventing water from seeping out from the gap between the coupling tube and the flexible sealing ring, etc., further improving the sealing performance of the water purifier when water is flowing, and improving the overall water sealing performance and reliability of the water purifier. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0028] Figure 1 This is a schematic diagram of the structure of the anti-drip pure water pitcher provided in the embodiments of this application;

[0029] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0030] Figure 3 This is a schematic diagram of the structure of the cover, flexible sealing ring, positioning ring, and elastic reset member provided in the embodiments of this application;

[0031] Figure 4 A cross-sectional view of the anti-drip pure water pitcher provided in an embodiment of this application;

[0032] Figure 5 for Figure 4Enlarged view at point B in the middle;

[0033] Figure 6 This is a cross-sectional view of a partial structure of the anti-drip pure water kettle provided in an embodiment of this application;

[0034] Figure 7 This is a schematic diagram of the structure of the kettle body provided in the embodiments of this application;

[0035] Figure 8 for Figure 7 Enlarged view at point C;

[0036] Figure 9 This is a schematic diagram of the structure of the water purifier provided in the embodiments of this application;

[0037] Figure 10 This is a cross-sectional view of the water purifier provided in the embodiment of this application;

[0038] Figure 11 for Figure 10 Enlarged view of point D in the middle.

[0039] List of components and reference numerals:

[0040] 1. Kettle body; 11. Spout guide; 12. Bottom channel; 13. Water outlet;

[0041] 2. Cover assembly, 21. Cover part, 22. Positioning part, 23. Buckle protrusion;

[0042] 3 Flexible sealing ring, 31 Upper outer ring rib, 32 Lower outer ring rib, 33 Sealing ring rib;

[0043] 4 positioning rings, 41 push protrusions;

[0044] 5. Elastic reset component;

[0045] 6. Kettle seat, 61. Coupling pipe, 62. Water flow channel, 63. Valve core. Detailed Implementation

[0046] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0047] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0048] Furthermore, it should be understood in the description of this application that the terms "upper," "lower," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "lateral," and "longitudinal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0049] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0050] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0051] In the embodiments of this application, reference is made to Figures 1 to 11 As shown, to address the problem of water dripping from the bottom channel 12 of a conventional water pitcher when it is removed, this application provides a drip-proof water pitcher and a water purifier. For ease of explanation and understanding, the following descriptions are based on the illustrated product structure. Of course, those skilled in the art will understand that the above structure is merely a specific example and illustrative illustration, and does not constitute a specific limitation on the technical solution provided in this application. The drip-proof water pitcher of this application can be applied not only to water purifiers but also to other suitable devices such as water dispensers and water purifiers.

[0052] like Figures 1 to 8As shown, the anti-drip pure water kettle includes a kettle body 1. The bottom of the kettle body 1 is provided with a flow guide 11. The flow guide 11 is provided with a bottom channel 12 that penetrates the inner cavity of the kettle body 1. The kettle body 1 is fixedly provided with a lid 2. The lid 2 has a lid part 21 that closes the lower opening of the flow guide 11. A water outlet 13 that connects to the bottom channel 12 is opened on the side wall of the flow guide 11. A flexible sealing ring 3 and a positioning ring 4 that can slide along its axial direction are sleeved on the outer side of the flow guide 11. The positioning ring 4 is located outside the flexible sealing ring 3 and is connected to the flexible sealing ring 3. When the positioning ring 4 is pushed upward by an external force, it simultaneously drives the flexible sealing ring 3 to move upward, so that the flexible sealing ring 3 is separated from the lid part 21 and the water outlet 13 is opened. When the positioning ring 4 drives the flexible sealing ring 3 to move downward, the flexible sealing ring 3 abuts against the lid part 21 and closes the water outlet 13.

[0053] Figure 4 and Figure 5 The diagram shows the state where the flexible sealing ring 3 and the positioning ring 4 are lowered and the flexible sealing ring 3 abuts against the cover 21 to close the water inlet 13. In this state, the water in the kettle body 1 and the water in the bottom channel 12 cannot leak out through the water inlet 13. Figure 2 and Figure 6 The diagram shows the state where the flexible sealing ring 3 and the positioning ring 4 move upwards and the flexible sealing ring 3 disengages from the cover part 21 to open the water inlet 13. In this state, the bottom channel 12 and the water inlet 13 connect the inside of the kettle body 1 with the outside.

[0054] In this application, a bottom channel 12 penetrating the inner cavity of the kettle body 1 is provided within the flow guide 11 at the bottom of the kettle body 1. A lid 2 is also provided, with its closing portion 21 sealing the lower opening of the flow guide 11, thus solving the problem of water dripping from the lower opening of the bottom channel 12 when the kettle body 1 is lifted. A water outlet 13 on the side wall of the flow guide 11, in conjunction with a flexible sealing ring 3 and a positioning ring 4 that can slide axially on the outer side, enables flexible control of the opening and closing of the water flow channel 62. Figure 9 , Figure 10 and Figure 11Taking the example of a pure water pitcher used in a water purifier, when the pitcher is placed on the base 6 (with an external pushing force), the positioning ring 4 moves upward under the external pushing force, simultaneously causing the flexible sealing ring 3 to move upward. This allows the flexible sealing ring 3 to disengage from the lid 21 and open the water inlet 13, ensuring smooth water inlet and outlet flow without affecting the original function of the water purifier. When the pitcher is removed from the base 6 (without external pushing force), the positioning ring 4 moves the flexible sealing ring 3 downward, causing it to abut against the lid 21 and close the water inlet 13. In this way, even if water remains in the bottom channel 12, it can be effectively blocked in the water inlet 13, preventing water from flowing out of the pitcher and trapping the remaining water in the bottom channel 12 inside, effectively avoiding the problem of water dripping from the bottom channel 12 when the pitcher is lifted. In a preferred embodiment, the flexible sealing ring 3 can be made of silicone rubber or other suitable materials.

[0055] Furthermore, by setting a positioning ring 4 to connect the flexible sealing ring 3, the positioning ring 4 has advantages over directly using the flexible sealing ring 3 as the force-bearing structure for external pushing forces. For example, the main function of the flexible sealing ring 3 is sealing. Its material is relatively soft and its structural shape is more focused on fitting the sealing part to achieve the sealing effect. If the flexible sealing ring 3 is directly used as the force-bearing structure for external pushing forces, due to its own softness, it is easy to have excessive local deformation when subjected to pushing forces, making it difficult to ensure that the force is evenly transmitted in its circumference. This may lead to uneven force distribution, which in turn affects its sealing relationship with related structures such as the lid 21. It may even cause problems such as jamming and deflection during movement due to uneven force distribution, affecting the normal realization of the anti-drip function. It is also prone to wear, tearing and other damage at the force points. Once the flexible sealing ring 3 is damaged in this way, it will directly affect its sealing effect on the water outlet 13, causing the anti-drip function to fail, greatly shortening the service life of the entire pure water kettle structure, and increasing product maintenance costs and replacement frequency. As a structural component specifically designed to withstand external pushing forces, the positioning ring 4 can be made of materials with relatively high strength and good wear resistance, such as hard plastic or metal, to cope with long-term and frequent stress conditions. This allows the positioning ring 4 to better withstand the force during repeated operations such as placing the pure water bottle on the bottle holder 6, being pushed by the pushing force, and resetting after removing the pure water bottle, making it less prone to damage or deformation and ensuring the long-term stable operation of the entire anti-drip mechanism.

[0056] As a preferred embodiment of this application, such as Figure 2 , Figure 3 and Figure 5As shown, the outer circumferential surface of the flexible sealing ring 3 is provided with an upper outer ring rib 31 and a lower outer ring rib 32 spaced apart. The inner wall of the positioning ring 4 is embedded between the upper outer ring rib 31 and the lower outer ring rib 32 to form an axial limit, so that the positioning ring 4 and the flexible sealing ring 3 move synchronously axially. Those skilled in the art will understand that in actual use, the pure water pitcher of the water purifier may need to be frequently placed and removed due to user needs. During this process, the flexible sealing ring 3 and the positioning ring 4 need to work together accurately and stably to control the opening and closing of the water outlet 13 to achieve the purpose of preventing dripping. This axial limiting method ensures that the two elements move in a coordinated manner under external pushing or restoring forces, preventing relative displacement deviation. This guarantees that the flexible sealing ring 3 accurately disengages from the cover 21 each time the water inlet 13 is opened, allowing smooth water flow. Conversely, when the water inlet 13 is closed, the flexible sealing ring 3 precisely abuts against the cover 21 to achieve a seal. This avoids gaps or leakage caused by asynchronous movement, effectively enhancing the reliability and stability of the entire anti-drip mechanism. This ensures the anti-drip function continues to operate stably over extended periods and multiple uses. This matching method between the flexible sealing ring 3 and the positioning ring 4 also facilitates their installation. In alternative embodiments, the flexible sealing ring 3 and the positioning ring 4 can be connected in other reasonable ways. For example, a locking block can be provided on the flexible sealing ring 3, and a corresponding slot can be provided on the positioning ring 4, or vice versa. The axial limiting and relative fixation of the positioning ring 4 and the flexible sealing ring 3 can be achieved through the engagement of the locking block and the slot.

[0057] Furthermore, such as Figure 2 and Figure 3As shown, the positioning ring 4 is circumferentially spaced with multiple pushing protrusions 41. These protrusions 41 bear external pushing forces. At least a portion of the projection of the pushing protrusions 41 onto the horizontal plane is located outside the projections of the flexible sealing ring 3 and the cover 2 onto the horizontal plane. Considering that when the pure water bottle is actually placed on the bottle holder 6, the structure on the bottle holder 6 needs to apply an accurate and effective pushing force to the positioning ring 4 to trigger subsequent actions such as opening the water inlet 13, the arrangement of these pushing protrusions 41 ensures that at least a portion of their projections onto the horizontal plane is located outside the projections of the flexible sealing ring 3 and the cover 2 onto the horizontal plane. This allows the corresponding pushing components on the bottle holder 6 to easily contact and act on the pushing protrusions 41, ensuring effective transmission of the pushing force and preventing the positioning ring 4 from failing to move smoothly due to improper pushing positions. On the other hand, the multiple spaced push protrusions 41 can evenly distribute the pushing force, avoiding excessive local force that could damage the positioning ring 4 or other related components. This also ensures that the positioning ring 4 can smoothly move upwards after being pushed, causing the flexible sealing ring 3 to move synchronously and stably to open the water inlet 13, guaranteeing the smoothness and reliability of the entire water supply process between the pure water kettle and the kettle base 6. Furthermore, even with a certain positional deviation or slight shaking between the kettle base 6 and the pure water kettle during long-term use, the reasonably distributed push protrusions 41 can still accurately receive the pushing force and achieve normal functional response, further improving the product's adaptability and durability in actual use scenarios. This effectively reduces problems such as leak-proof function failure caused by poor external pushing, enhancing user satisfaction.

[0058] As a preferred embodiment of this application, such as Figure 5As shown, the outer diameter of the cover portion 21 is larger than the outer diameter of the guide portion 11. The cover portion 21 abuts against the bottom edge of the guide portion 11, and the portion protruding from the bottom edge of the guide portion 11 is used to abut against and seal with the flexible sealing ring 3. The portion of the cover portion 21 protruding from the bottom edge of the guide portion 11 forms an annular sealing step, which is used to abut against and seal with the flexible sealing ring 3. This increases the sealing contact area between the cover portion 21 and the flexible sealing ring 3, allowing them to form a tighter and more complete seal when they abut, effectively filling any possible gaps and enhancing the sealing effect on the water outlet 13. When the pure water bottle is removed from the base 6, the residual water mainly relies on this sealing structure to prevent it from seeping and dripping from the water outlet 13. The larger contact area and good abutment state can reliably withstand the pressure of the residual water, preventing even a small amount of water from leaking out. From a structural stability perspective, this abutment method makes the lid 21 more stable at the bottom of the kettle body 1, preventing it from easily shifting due to daily handling or placement of the kettle. This ensures that it always accurately engages with the flexible sealing ring 3 to provide a seal, providing a solid structural foundation for the entire anti-drip function. Compared to some structures with small sealing contact areas or unstable connections, this design can solve the dripping problem more effectively and stably, maintaining the kettle in good working order and preventing dripping caused by poor sealing from adversely affecting the surrounding environment, thereby improving the user experience.

[0059] In a preferred embodiment, such as Figure 3 and Figure 5As shown, the lid assembly 2 includes a positioning part 22 fixedly connected to the lid part 21. The positioning part 22 has multiple snap-fit ​​protrusions 23, which pass through the upper opening of the bottom channel 12 and snap onto the bottom wall of the inner cavity of the kettle body 1. Those skilled in the art will understand that during the use of the pure water kettle in a water purifier, whether it is frequently placed on the kettle base 6 for filling and dispensing water, or for daily handling and movement, the lid assembly 2 must remain firmly fixed to the kettle body 1. Through the snap-fit ​​method of these snap-fit ​​protrusions 23, the lid assembly 2 can be securely installed on the kettle body 1 without loosening or shifting. This ensures that the lid part 21, the flexible sealing ring 3, and other related key components are always in the correct position, so that when the opening and closing of the water inlet 13 needs to be controlled, each component can work precisely and collaboratively according to the design requirements. For example, when the water bottle is placed on the base 6, and the positioning ring 4 is pushed upwards, causing the flexible sealing ring 3 to move upwards, the lid 21 can stably remain in its original position, allowing it to accurately separate from the flexible sealing ring 3 and open the water inlet 13. When the water bottle is removed, and the flexible sealing ring 3 moves downwards to abut against the lid 21 and close the water inlet 13, the lid 21, due to its stable fixation, reliably achieves a sealing function. This stable fixing structure of the lid 2 avoids problems such as seal failure and abnormal opening and closing of the water inlet 13 caused by loosening, improving the reliability and durability of the entire anti-drip water bottle structure and ensuring that the product can stably perform its anti-drip function during long-term use. In other alternative embodiments, the positioning part 22 of the lid 2 can also be fixed to the bottle body 1 by interference fit, riveting, threaded connection, etc. In addition, the inner walls of the positioning part 22 and the guide part 11 need to be enclosed to form a channel that connects the water outlet 13 with the inner cavity of the kettle body 1, so as to prevent the positioning part 22 from blocking the water flow.

[0060] As a preferred embodiment of this application, such as Figure 3 and Figure 5 As shown, the inner circumferential surface of the flexible sealing ring 3 is provided with a sealing ring rib 33. When the flexible sealing ring 3 abuts against the lid 21, the abutment position of the sealing ring rib 33 and the guide part 11 is located above the water outlet 13. When the pure water bottle is removed from the base 6, the flexible sealing ring 3 abuts against the lid 21 to seal the water outlet 13. At this time, the presence of the sealing ring rib 33 is equivalent to adding an extra layer of protection above the water outlet 13. The sealing ring rib 33 can fit more tightly against the guide part 11, further filling any possible tiny gaps, making it difficult for residual water to seep out from near the water outlet 13 even under certain pressure, thus improving the sealing performance of the entire anti-drip mechanism and minimizing the possibility of dripping. In actual use, whether the pure water bottle is placed at a slightly tilted angle or residual water is sloshing in the bottom channel 12, the sealing ring rib 33 can effectively prevent water leakage, ensuring that the surrounding environment is not affected by dripping.

[0061] Furthermore, such as Figure 7 and Figure 8 As shown, the bottom of the guide section 11 has multiple notches spaced circumferentially, forming a water outlet 13. From the perspective of water flow function, this spaced notch arrangement provides sufficient and reasonably distributed channels for water flow when the pure water kettle is placed on the kettle base 6 and water inlet or outlet operations are required. This allows water to flow smoothly through the bottom channel 12 and the water outlet 13 between the pure water kettle's inner cavity and the water flow channel 62 of the kettle base 6, ensuring that the normal water dispensing and filling functions of the water purifier are not affected. From a sealing perspective, compared to some continuous, large-area water outlets 13, the spaced notches are easier to accurately cover and seal with the flexible sealing ring 3. When the flexible sealing ring 3 abuts against the cover 21, it can effectively seal each notch, avoiding residual water leakage caused by irregular or excessively large water outlets 13 that are difficult to seal. Moreover, the multiple notches can disperse the water pressure to a certain extent, making the impact of the water flow on the inlet 13 and related sealing components more uniform during the water flow process. This reduces the risk of damage to the sealing structure caused by excessive local water pressure, further improving the stability and reliability of the entire anti-drip mechanism during long-term water flow. It effectively solves the problem of dripping water in existing pure water kettles, while also ensuring the efficiency and smoothness of water inlet and outlet of the water purifier.

[0062] As a preferred embodiment of this application, such as Figure 3 , Figure 5 and Figure 6As shown, an elastic reset member 5 is provided between the bottom wall of the kettle body 1 and the positioning ring 4. The elastic reset member 5 is used to drive the positioning ring 4 to move downward. In the daily use of the water purifier, the pure water kettle needs to switch between being placed on the kettle base 6 for water flow and being removed from the kettle base 6. When the pure water kettle is removed from the kettle base 6, in order to ensure timely and automatic anti-drip function, that is, to allow the positioning ring 4 to drive the flexible sealing ring 3 to move downward to close the water outlet 13, the elastic reset member 5 plays an important role. The elastic reset member 5 can provide stable and continuous downward pressure to the positioning ring 4 by relying on its own elastic restoring force, driving the positioning ring 4 to accurately return to the position of closing the water outlet 13, without the need for additional manual operation by the user, which greatly improves the convenience of use. Moreover, this elastic reset method can ensure that the anti-drip action is executed quickly and reliably every time the pure water kettle is removed, avoiding the occurrence of residual water droplets due to human negligence or untimely operation. Meanwhile, the presence of the elastic reset element 5 also gives the entire anti-drip mechanism a certain degree of adaptability. Regardless of the length of time the pure water kettle is placed on the kettle base 6 or its specific state when removed, it can be restored to the correct anti-drip state by relying on the action of the elastic reset element 5, further enhancing the stability and reliability of the product in actual use scenarios. The attached figure shows an embodiment in which the elastic reset element 5 is a helical spring. In other embodiments, the elastic reset element 5 can also be a butterfly spring, wave spring, gas spring, rubber elastomer, etc.

[0063] like Figures 9 to 11 As shown in the figure, the water purifier provided in this application (the figure only shows the kettle base structure of the water purifier related to the anti-drip pure water kettle, and other unrelated or less related structures are not shown) includes the above-mentioned anti-drip pure water kettle and a kettle base 6 for placing the anti-drip pure water kettle. The kettle base 6 is provided with a coupling structure, which includes a coupling pipe 61. The coupling pipe 61 is provided with a water flow channel 62, and a valve core 63 is provided in the water flow channel 62. Figure 9 and Figure 10 The image shows the purified water kettle placed on the kettle base 6. In this state, the coupling tube 61 pushes the positioning ring 4 upward, causing the positioning ring 4 to move the flexible sealing ring 3 upward and open the water inlet 13. At the same time, the cover 21 pushes the valve core 63 downward to open the water flow channel 62, allowing the inner cavity of the kettle body 1 to connect with the water flow channel 62 through the kettle bottom channel 12 and the water inlet 13. When the purified water kettle is removed from the kettle base 6, the positioning ring 4 moves the flexible sealing ring 3 downward, causing the flexible sealing ring 3 to abut against the cover 21 and close the water inlet 13. In addition, as a preferred embodiment, the valve core 63 in the water flow channel 62 can also be reset upward under the action of the spring to close the water flow channel 62, preventing water from leaking out of the kettle base 6.

[0064] Applying a drip-proof pure water pitcher to a water purifier effectively overcomes the problem of dripping water when the pitcher is removed from the base 6, a common issue for users. Specifically, when the pitcher is placed on the base 6, the coupling tube 61 of the base 6 pushes the positioning ring 4 upward, causing the positioning ring 4 to move the flexible sealing ring 3 upward and open the water inlet 13. At the same time, the cover 21 pushes the valve core 63 downward to open the water flow channel 62, ensuring that the inner cavity of the pitcher 1 is connected to the water flow channel 62 through the bottom channel 12 and the water inlet 13, achieving normal and smooth water inlet and outlet functions, and meeting the user's basic functional requirements for the water purifier. When the pure water pitcher is removed from the base 6, the internal structure of the pitcher causes the positioning ring 4 to move the flexible sealing ring 3 downwards, allowing the flexible sealing ring 3 to abut against the lid 21 and seal the water inlet 13. This effectively prevents residual water droplets from dripping from the bottom channel 12, minimizing the risk of water droplets causing wetness on the countertop, floor, and surrounding environment. This reduces the user's cleaning burden and lowers the hygiene risks of bacteria growth on the countertop due to dripping water in humid environments, significantly improving the user experience. Compared to existing improvements, this application, while ensuring the normal function of the water purifier, achieves anti-drip functionality through a more reasonable and reliable structural design, improving the overall practicality and stability of the product.

[0065] Furthermore, such as Figure 11 As shown, when the coupling pipe 61 abuts against the positioning ring 4, the flexible sealing ring 3 abuts and seals against the inner wall of the coupling pipe 61. Those skilled in the art will understand that in actual use of the water purifier, when the pure water jug ​​is placed on the jug base 6 for water inlet and outlet operations, it is necessary not only to ensure that the water flow can smoothly pass through the jug bottom channel 12, the water outlet 13, and the water flow channel 62 of the jug base 6, but also to ensure that all connecting parts along the entire water flow path have good sealing performance to prevent leakage. At this time, the abutment seal between the flexible sealing ring 3 and the inner wall of the coupling pipe 61 fills any gaps that may exist between them, allowing water to flow only along the designed path, preventing water from seeping out between the coupling pipe 61 and the flexible sealing ring 3, and further improving the overall sealing performance of the water purifier during the water flow process.

[0066] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0067] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0068] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A leak-proof pure water pitcher, comprising a pitcher body, a flow guide at the bottom of the pitcher body, and a bottom channel penetrating the inner cavity of the pitcher body within the flow guide, characterized in that, The kettle body is fixedly provided with a lid, the lid having a lid portion that closes the lower opening of the flow guide, the side wall of the flow guide having a water outlet that connects to the bottom channel of the kettle, and the outer side of the flow guide being fitted with a flexible sealing ring and a positioning ring that can slide along its axial direction, the positioning ring being located outside the flexible sealing ring and connected to the flexible sealing ring. When the positioning ring is pushed upward by an external force, it simultaneously drives the flexible sealing ring to move upward, causing the flexible sealing ring to disengage from the cover and open the water inlet; When the positioning ring moves the flexible sealing ring downwards, the flexible sealing ring comes into contact with the cover and closes the water inlet.

2. The anti-drip pure water pitcher according to claim 1, characterized in that, The outer circumferential surface of the flexible sealing ring is provided with an upper outer ring rib and a lower outer ring rib distributed at intervals. The inner wall of the positioning ring is embedded between the upper outer ring rib and the lower outer ring rib to form an axial limit, so that the positioning ring and the flexible sealing ring move synchronously in the axial direction.

3. The anti-drip pure water pitcher according to claim 2, characterized in that, The positioning ring is provided with a plurality of push protrusions at circumferential intervals. The push protrusions are used to withstand external push forces. At least a portion of the area of ​​the push protrusions projected on the horizontal plane is located outside the projections of the flexible sealing ring and the cover member on the horizontal plane, respectively.

4. The anti-drip pure water pitcher according to claim 1, characterized in that, The outer diameter of the cover portion is larger than the outer diameter of the guide portion. The cover portion abuts against the bottom edge of the guide portion, and the portion protruding from the bottom edge of the guide portion is used to abut against and seal with the flexible sealing ring.

5. The anti-drip pure water pitcher according to claim 4, characterized in that, The lid assembly includes a positioning part that is fixedly connected to the lid part. The positioning part is provided with multiple snap-fit ​​protrusions. The snap-fit ​​protrusions pass through the upper opening of the bottom channel of the pot and are snapped onto the bottom wall of the inner cavity of the pot.

6. The anti-drip pure water pitcher according to claim 1, characterized in that, The inner circumferential surface of the flexible sealing ring is provided with sealing ring ribs. When the flexible sealing ring abuts against the cover, the abutment position of the sealing ring ribs against the flow guide is located above the water outlet.

7. The anti-drip pure water pitcher according to claim 6, characterized in that, The bottom of the guide section is provided with multiple notches spaced circumferentially, and the multiple notches constitute the water inlet.

8. The anti-drip pure water pitcher according to claim 1, characterized in that, An elastic reset member is provided between the bottom wall of the kettle body and the positioning ring, and the elastic reset member is used to drive the positioning ring to move downward.

9. A water purifier, characterized in that, The invention includes a drip-proof pure water kettle as described in any one of claims 1 to 8 and a kettle base for placing the drip-proof pure water kettle, wherein the kettle base is provided with a coupling structure, the coupling structure includes a coupling tube, the coupling tube is provided with a water flow channel, and a valve core is provided in the water flow channel; When the pure water jug ​​is placed on the jug base, the coupling tube pushes the positioning ring upward, causing the positioning ring to move the flexible sealing ring upward and open the water inlet. At the same time, the cover pushes the valve core downward to open the water flow channel, so that the inner cavity of the jug is connected to the water flow channel through the jug bottom channel and the water inlet. When the pure water jug ​​is removed from the jug base, the positioning ring causes the flexible sealing ring to move downward, so that the flexible sealing ring abuts against the lid and seals the water inlet.

10. The water purifier according to claim 9, characterized in that, When the coupling tube abuts against the positioning ring, the flexible sealing ring abuts and seals against the inner wall of the coupling tube.

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