A kettle plug with a knob opening and closing function

The kettle stopper with a knob opening and closing function, through the cooperation of the wheel and bushing, solves the problems of laborious operation and poor hygiene of the existing push-button kettle stopper, realizing labor-saving opening and closing and improving drinking water hygiene.

CN224546841UActive Publication Date: 2026-07-24ZHE JIANG YUNUO IND &TRADE CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHE JIANG YUNUO IND &TRADE CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing push-button kettle stoppers are laborious to operate and have poor hygiene, making them prone to bacterial growth.

Method used

The stopper with a knob opening and closing function uses the torsional force of the wheel to drive the cap opening and closing through the cooperation of the wheel and bushing. Combined with the elastic drive component and guide structure, it realizes effortless opening and closing of the cap, and the cooperation of the positioning protrusions and the wave teeth ensures precise locking of the cap and reduces friction.

Benefits of technology

It achieves effortless opening and closing of the kettle stopper, prevents bacteria from growing in the gaps, improves hygiene and user experience, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to kettle part technical field discloses a kettle plug with knob opening and closing function, including kettle plug body (1) and the water outlet channel (2) of opening in one side of kettle plug body (1), the water inlet (3) of water outlet channel (2) is located at the bottom of kettle plug body (1), the bottom of kettle plug body (1) is provided with the cover (4), be provided with the drive mechanism for driving cover (4) along the axial reciprocating motion of kettle plug body (1) to close or open the water inlet (3) in kettle plug body (1), the utility model discloses a kettle plug, through the torsional force of runner (5) is changed into the pressure of driving cover (4) opening and closing, can effectively reduce the force that kettle plug body (1) opening and closing wants to exert, to make operation more labor saving. And, the force receiving part of runner (5) will not appear subsidence or be closed with the opening and closing of cover (4) phenomenon, thereby avoiding bacteria in the gap of kettle plug a large number of breeding, make drinking water more healthy and healthy.
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Description

Technical Field

[0001] This utility model relates to the technical field of kettle components, and in particular to a kettle stopper with a knob opening and closing function. Background Technology

[0002] A kettle stopper is an accessory used to seal the opening of a kettle, serving to keep the water warm and maintain its cleanliness. Existing kettle stoppers typically use a push-button design to open and close the water outlet. For example, utility model patent CN222171809U discloses a similar push-button kettle stopper and a kettle with the same stopper.

[0003] The aforementioned push-button kettle stopper requires pressing a button in the center with your finger to activate the internal opening and closing mechanism, thus opening and closing the water flow. However, this push-button mechanism requires overcoming the elastic force generated by the internal spring, which is quite strenuous. Furthermore, pressing the button introduces oils and bacteria from the skin into the recessed groove. When the button resets, it closes the groove, allowing bacteria to proliferate rapidly within the sealed area, seriously affecting drinking water hygiene. Therefore, the existing kettle stopper needs improvement. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a kettle stopper with a knob-operated opening and closing function, which makes opening and closing the kettle stopper easier and more hygienic.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0006] A kettle stopper with a knob opening and closing function includes a kettle stopper body and a water outlet channel opened on one side of the kettle stopper body. The water inlet of the water outlet channel is located at the bottom of the kettle stopper body. A cap is provided at the bottom of the kettle stopper body. A drive mechanism is provided in the kettle stopper body for driving the cap to reciprocate along the axial direction of the kettle stopper body to close or open the water inlet. The drive mechanism includes a rotating wheel rotatably disposed in the kettle stopper body and the rotating shaft is arranged along the axial direction of the kettle stopper body, a bushing that slides along the axial direction of the kettle stopper body and is sleeved on the rotating wheel and linked with the cap, and an elastic drive component that acts on the bushing to make the cap have a tendency to close the water inlet. The end face of the rotating wheel near the cap is provided with a plurality of wavy teeth. The troughs of adjacent wavy teeth form a pressure surface. The plurality of pressure surfaces are arranged in a high-low cycle. The inner sidewall of the bushing is provided with positioning protrusions that engage with the pressure surfaces.

[0007] When the positioning protrusion bounces to the pressure surface closer to the cover as the wheel rotates, the bushing overcomes the elastic force of the elastic drive assembly and drives the cover to open the water inlet.

[0008] Conversely, when the positioning protrusion bounces to a pressure surface farther away from the cover as the wheel rotates, the elastic drive assembly drives the cover to seal the water inlet.

[0009] By adopting the above solution, the torsional force of the rotating wheel is converted into pressure to drive the cap opening and closing, effectively reducing the force required to open and close the stopper, thus making operation more effortless. Furthermore, the force-bearing parts of the rotating wheel will not sink or become sealed as the cap opens and closes, preventing bacteria from multiplying in the gaps of the stopper and ensuring more hygienic and healthy drinking water. The cooperation between the positioning protrusions and the wavy teeth effectively realizes the movement of the cap, thereby completing the opening and closing of the water inlet. This also provides a tactile feedback during the opening and closing process, serving as a guide and improving the user experience. The positioning protrusions not only achieve precise engagement with the wavy teeth but also reduce the contact area between them and the tooth surface, thereby reducing friction and wear rate, making the drive mechanism run more smoothly and extending its service life.

[0010] Preferably, the top of the stopper body is provided with a knob that responds to an external trigger to drive the wheel to rotate.

[0011] By adopting the above solution, the knob is easier to apply force, which can effectively increase the operating efficiency and convenience of the drive mechanism, and can make the control point of the wheel further away from the stopper body, while further reducing the probability of bacteria, thus making drinking water more hygienic.

[0012] Preferably, the stopper body is provided with a base plate, and the elastic drive assembly includes a connecting rod that slides along the axial direction of the stopper body through the base plate and connects between the cap and the bushing, and an elastic member provided on the connecting rod to form an elastic support force between the bushing and the base plate.

[0013] By adopting the above scheme, the combination of the base plate, connecting rod and elastic element can form a guide spring assembly, which can form a stable and durable elastic support force between the base plate and the bushing, and has a certain guiding effect, so that the cover has an automatic closing tendency, while ensuring closing efficiency and sealing effect.

[0014] Preferably, the elastic element is a compression spring sleeved on the connecting rod and with its two ends pressing against the opposite surfaces of the bushing and the base plate, respectively.

[0015] The above solution features a simple spring structure, convenient installation, and low cost. It provides stable and durable elastic support, thereby ensuring the performance of the elastic drive component.

[0016] Preferably, the drive mechanism also includes a number of guide posts disposed in the body of the pot stopper and surrounding the outside of the bushing. The guide posts are arranged along the axial direction of the pot stopper body, and the outside of the bushing is provided with a number of guide grooves that slide along the length of the guide posts and are connected to the guide posts one by one.

[0017] By adopting the above scheme, the cooperation between the guide post and the guide groove can play a more precise guiding role. Several guide posts can form a limit around the bushing, so that the bushing will not shift left or right or rotate circumferentially during the movement, further improving the efficiency and smoothness of the drive mechanism.

[0018] Preferably, the knob is fixed to the rotating wheel by screws, and the end face of the rotating wheel near the knob is provided with several positioning pins, and the end face of the knob near the rotating wheel is provided with several positioning holes for the positioning pins to be inserted one by one.

[0019] By adopting the above solution, the screw can prevent the knob from axially disengaging from the wheel, and the fit between the positioning post and the positioning hole can play a role in limiting rotation, thereby effectively improving the connection stability between the knob and the wheel and ensuring the efficiency and accuracy of the knob driving the wheel.

[0020] Preferably, the top of the stopper body is provided with a sealing plate through which the end of the rotating wheel away from the cap rotates, and the outer wall of the rotating wheel is provided with an anti-disengagement component to prevent the rotating wheel from disengaging from the sealing plate.

[0021] By adopting the above solution, the cooperation between the anti-detachment component and the sealing plate can play a limiting role, thereby effectively preventing the wheel from detaching from the pot stopper body along the axial direction of the pot stopper body, and further improving the stability of the drive mechanism.

[0022] Preferably, the drive mechanism is encapsulated in a sealed cavity of the stopper body, and the bottom plate is a sidewall formed between the sealed cavity and the bottom of the stopper body.

[0023] By adopting the above solution, the sealed chamber can protect the drive mechanism and prevent the water in the kettle from coming into direct contact with the drive mechanism, thereby effectively extending the service life of the drive mechanism and the entire kettle stopper.

[0024] Preferably, ventilation holes are provided on the bottom plate.

[0025] By adopting the above solution, the vent hole can maintain the air pressure balance inside and outside the kettle stopper, so that the water in the kettle can be poured out smoothly through the water outlet, further improving the convenience of use.

[0026] Preferably, the bottom ring of the stopper body is provided with a sealing protrusion for the cap to abut against, and the water inlet and the vent hole are both located inside the sealing protrusion.

[0027] By adopting the above solution, the cooperation between the sealing ring and the cap can realize the synchronous opening and closing of the water inlet and the vent, thereby improving the efficiency of the kettle stopper.

[0028] This invention, employing the above technical solutions, achieves significant technical effects: by converting the torsional force of the rotating wheel into pressure to open and close the cap, the force required to open and close the stopper is effectively reduced, making operation more effortless. Furthermore, the force-bearing parts of the rotating wheel do not sink or become sealed during cap opening and closing, thus preventing bacteria from multiplying in the gaps of the stopper and ensuring more hygienic and healthy drinking water. The cooperation between the positioning protrusions and the wavy teeth effectively realizes the cap's movement, completing the opening and closing of the water inlet. This also provides a tactile feedback during the opening and closing process, serving as a guide and improving the product's usability. The positioning protrusions not only achieve precise engagement with the wavy teeth but also reduce the contact area between them and the tooth surface, thereby reducing friction and wear rate, resulting in smoother operation of the drive mechanism and extending its service life. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this embodiment. Figure 1 ;

[0030] Figure 2 This is a schematic diagram of the structure when the cap is closed in this embodiment;

[0031] Figure 3 This is a schematic diagram of the structure when the cap is opened in this embodiment;

[0032] Figure 4 This is a schematic diagram of the structure of this embodiment. Figure 2 ;

[0033] Figure 5 for Figure 4 An enlarged schematic diagram of part A shown;

[0034] Figure 6 This is a schematic diagram of the structure of this embodiment. Figure 3 ;

[0035] Figure 7 This is a schematic diagram of the structure of this embodiment. Figure 4 ;

[0036] Figure 8 for Figure 7 An enlarged schematic diagram of part B is shown below;

[0037] Figure 9 for Figure 7 An enlarged schematic diagram of section C is shown below;

[0038] Figure 10 This is a schematic diagram of the structure of this embodiment. Figure 5 ;

[0039] Figure 11 for Figure 10 An enlarged schematic diagram of part D is shown below;

[0040] Figure 12 This is a schematic diagram of the structure of this embodiment. Figure 6 .

[0041] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Stopper body; 2. Outlet channel; 3. Inlet; 4. Cap; 5. Rotary wheel; 6. Bushing; 7. Corrugated teeth; 8. Pressure surface; 9. Positioning protrusion; 10. Knob; 11. Base plate; 12. Connecting rod; 13. Elastic element; 14. Guide post; 15. Guide groove; 16. Screw; 17. Positioning post; 18. Positioning hole; 19. Sealing plate; 20. Anti-detachment element; 21. Sealed chamber; 22. Vent hole; 23. Sealing protrusion ring; 24. Outlet; 25. Spout; 26. Silicone sealing gasket; 27. Perforation; 28. External thread; 29. ​​Air inlet; 30. Gasket; 31. Abutment ring. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0043] like Figures 1 to 12As shown, this embodiment discloses a kettle stopper with a knob-operated opening and closing function, including a kettle stopper body 1 and a water outlet channel 2 opened on one side of the kettle stopper body 1. The water inlet 3 of the water outlet channel 2 is located at the bottom of the kettle stopper body 1 and near the side, and the water outlet 24 is located at the top of the kettle stopper body 1 and on the same side as the water inlet 3. The water outlet 24 extends outward to form a kettle spout 25, thereby facilitating the guidance of water flow. A circular cap 4 is provided at the bottom of the kettle stopper body 1, and a drive mechanism is provided inside the kettle stopper body 1 for driving the cap 4 to reciprocate along the axial direction of the kettle stopper body 1 to close or open the water inlet 3. Specifically, the drive mechanism includes a rotating wheel 5 rotatably disposed within the stopper body 1 with its axis of rotation along the axial direction of the stopper body 1; a bushing 6 slidably fitted onto the rotating wheel 5 along the axial direction of the stopper body 1 and linked with the cap 4; and an elastic drive component acting on the bushing 6 to cause the cap 4 to tend to close the inlet 3. The end face of the rotating wheel 5 near the cap 4 is provided with four wavy teeth 7, and the troughs of adjacent wavy teeth 7 form a pressure surface 8. The four pressure surfaces 8 are arranged in a high-low cycle. That is, there are two pressure surfaces 8 at the low position and two pressure surfaces 8 at the high position. The two low pressure surfaces 8 are centrally symmetrically arranged with the axis of rotation of the rotating wheel 5 as the center, and the two high pressure surfaces 8 are also centrally symmetrically arranged with the axis of rotation of the rotating wheel 5 as the center. The inner sidewall of the bushing 6 is provided with positioning protrusions 9 that engage with the pressure surfaces 8, thereby achieving positioning of the bushing 6 and the cap 4 at different heights. Two positioning protrusions 9 are provided and are located at both ends of the inner sidewall of the bushing 6 to ensure stability when the positioning protrusions 9 and the pressing surface 8 are engaged, thereby effectively improving the balance of the bushing 6 during movement. The wave teeth 7 are unidirectional teeth, so that the rotating wheel 5 can only rotate in one direction. The top of the stopper body 1 is fixed with a sealing plate 19 through which the end of the rotating wheel 5 away from the cap 4 is rotated. The outer sidewall of the rotating wheel 5 is integrally provided with an anti-detachment component 20 to prevent the rotating wheel 5 from detaching from the sealing plate 19. There are two anti-detachment components 20, which are symmetrically arranged on both sides of the rotating wheel 5.

[0044] To improve efficiency and convenience, the top of the stopper body 1 is equipped with a knob 10 that responds to external triggering to drive the rotating wheel 5. A gasket 30 is fitted over the portion of the rotating wheel 5 extending beyond the sealing plate 19. An abutment ring 31 is fixedly mounted on the mating surface of the knob 10, rotating against the gasket 30. The cooperation between the gasket 30 and the abutment ring 31 effectively improves the smoothness of the knob 10's rotation and prevents wear on the sealing plate 19. The upper surface of the knob 10 is fixed to the rotating wheel 5 with screws 16. Two positioning pins 17 are fixed to the end face of the rotating wheel 5 near the knob 10. Two positioning holes 18 are provided on the end face of the knob 10 near the rotating wheel 5 for the two positioning pins 17 to be inserted one-to-one, thus limiting the relative circumferential position between the knob 10 and the rotating wheel 5, thereby achieving synchronous operation of the knob 10 and the rotating wheel 5. The cooperation between the knob 10 and the anti-disengagement component 20 provides axial limiting for the rotating wheel 5, making the rotating wheel 5 more stable during operation.

[0045] To achieve a sealed protection for the drive mechanism, the drive mechanism is encapsulated within a sealed chamber 21 of the stopper body 1. A sidewall is formed between the sealed chamber 21 and the bottom of the stopper body 1; for ease of description, this sidewall is defined as a bottom plate 11. A vent 22 is provided on the bottom plate 11. When the cap 4 is open, the vent 22 maintains the air pressure balance inside and outside the stopper body 1 through the gap between the rotating wheel 5 and the sealing plate 19, thus allowing water to flow smoothly from the outlet channel 2. The vent 22 is located far from the inlet 3 to prevent water from entering the vent 22 when water is flowing from the outlet channel 2. To improve the smoothness of water flow, an air inlet 29 is provided on the sealing plate 19, communicating with the sealed chamber 21. This, in conjunction with the vent 22, increases the efficiency of air pressure balance inside and outside the stopper body 1, thereby increasing the water flow rate of the stopper.

[0046] To improve the sealing performance of the cap 4, the bottom retaining ring of the stopper body 1 is provided with a rigid sealing protrusion 23 for the cap 4 to abut against. The water inlet 3 and the vent hole 22 are both located inside the sealing protrusion 23. A silicone sealing gasket 26 is fixedly fitted on the cap 4. When the cap 4 is in the closed state, the silicone sealing gasket 26 can fit tightly against the sealing protrusion 23, thereby improving the sealing effect.

[0047] To achieve the function of the elastic drive assembly, the elastic drive assembly includes a connecting rod 12 that slides along the axial direction of the stopper body 1 through the base plate 11 and is fixedly connected between the cap 4 and the bushing 6, and an elastic element 13 disposed on the connecting rod 12 to form an elastic support force between the bushing 6 and the base plate 11. A through hole 27 on the base plate 11 for the connecting rod 12 to slide through is located within a sealing ring 23, thereby effectively reducing the risk of water from the kettle entering the drive mechanism. The elastic element 13 is a compression spring sleeved on the connecting rod 12 with its two ends pressing against the opposing surfaces of the bushing 6 and the base plate 11, respectively.

[0048] To improve the stability and smoothness of the bushing 6 during operation, the drive mechanism also includes four guide posts 14 fixedly installed in the sealed chamber 21 and evenly spaced around the outside of the bushing 6. The guide posts 14 are arranged along the axial direction of the stopper body 1, and four guide grooves 15 are opened on the outside of the bushing 6, which slide along the length direction of the guide posts 14 and are connected to the four guide posts 14.

[0049] To improve the tightness of the connection between the stopper and the body of the kettle (not shown), the outer circumferential surface of the stopper body 1 is provided with external threads 28 that are threaded to the opening of the kettle body (not shown).

[0050] The specific usage process is as follows:

[0051] When water needs to be poured out, turn the knob 10 by hand to drive the rotating wheel 5 to rotate, which in turn drives the wave teeth 7 on the rotating wheel 5 to rotate. When the positioning protrusion 9 on the bushing 6 bounces to the pressure surface 8 closer to the cover 4 as the rotating wheel 5 rotates, the bushing 6 can overcome the elastic force of the elastic drive component and drive the cover 4 to move down through the connecting rod 12, so that the water inlet 3 and the vent hole 22 of the water outlet channel 2 can be opened, thus facilitating the user to pour out water.

[0052] After pouring the water, turn the knob 10 again so that the positioning protrusion 9 bounces to the pressure surface 8, which is farther away from the cap 4, as the wheel 5 rotates. At this time, the bushing 6 can be reset under the elastic force of the elastic drive component, so as to drive the cap 4 to spring back through the connecting rod 12. When the silicone sealing gasket 26 on the cap 4 abuts against the sealing protrusion 23 at the bottom of the stopper body 1, it can seal the water inlet 3 and the vent 22, thereby cutting off the water outlet channel 2.

Claims

1. A kettle stopper with a knob opening and closing function, comprising a kettle stopper body (1) and a water outlet channel (2) opened on one side of the kettle stopper body (1), characterized in that: The inlet (3) of the water outlet channel (2) is located at the bottom of the stopper body (1). A cap (4) is provided at the bottom of the stopper body (1). A drive mechanism is provided inside the stopper body (1) to drive the cap (4) to reciprocate along the axial direction of the stopper body (1) to close or open the inlet (3). The drive mechanism includes a wheel (5) rotatably disposed inside the stopper body (1) with its rotating shaft arranged along the axial direction of the stopper body (1), and a sliding wheel along the axial direction of the stopper body (1). The bushing (6) is mounted on the rotating wheel (5) and linked with the cover (4), and the elastic drive assembly acts on the bushing (6) to make the cover (4) have a tendency to close the water inlet (3). The end face of the rotating wheel (5) near the cover (4) is provided with a number of wave teeth (7). The trough of the adjacent wave teeth (7) forms a pressure surface (8). The pressure surfaces (8) are arranged in a high-low cycle. The inner side wall of the bushing (6) is provided with positioning protrusions (9) that are engaged with the pressure surface (8). When the positioning protrusion (9) bounces to the pressure surface (8) which is closer to the cover (4) as the wheel (5) rotates, the bushing (6) overcomes the elastic force of the elastic drive assembly and drives the cover (4) to open the water inlet (3); Conversely, when the positioning protrusion (9) bounces to the pressure surface (8) which is far from the cover (4) as the wheel (5) rotates, the elastic drive assembly drives the cover (4) to seal the inlet (3).

2. A kettle stopper with a knob opening and closing function according to claim 1, characterized in that: The top of the stopper body (1) is provided with a knob (10) that responds to an external trigger to drive the wheel (5) to rotate.

3. A kettle stopper with a knob opening and closing function according to claim 1, characterized in that: The pot stopper body (1) is provided with a base plate (11). The elastic drive assembly includes a connecting rod (12) that slides along the axial direction of the pot stopper body (1), passes through the base plate (11), and connects between the cap (4) and the bushing (6), and an elastic member (13) provided on the connecting rod (12) to form an elastic support force between the bushing (6) and the base plate (11).

4. A kettle stopper with a knob opening and closing function according to claim 3, characterized in that: The elastic element (13) is a compression spring sleeved on the connecting rod (12) and pressed against the opposite surfaces of the bushing (6) and the base plate (11) at both ends.

5. A kettle stopper with a knob opening and closing function according to claim 1, characterized in that: The drive mechanism also includes a number of guide posts (14) disposed inside the pot stopper body (1) and surrounding the outside of the bushing (6). The guide posts (14) are arranged along the axial direction of the pot stopper body (1), and the outside of the bushing (6) is provided with a number of guide grooves (15) that slide along the length direction of the guide posts (14) and are connected to the guide posts (14).

6. A kettle stopper with a knob opening and closing function according to claim 2, characterized in that: The knob (10) is fixed to the rotating wheel (5) by screws (16). Several positioning pins (17) are provided on the end face of the rotating wheel (5) near the knob (10). Several positioning holes (18) are provided on the end face of the knob (10) near the rotating wheel (5) for the positioning pins (17) to be inserted one by one.

7. A kettle stopper with a knob opening and closing function according to claim 2, characterized in that: The top of the stopper body (1) is provided with a sealing plate (19) through which the end of the rotating wheel (5) away from the cap (4) rotates. The outer side wall of the rotating wheel (5) is provided with an anti-disengagement component (20) to prevent the rotating wheel (5) from disengaging from the sealing plate (19).

8. A kettle stopper with a knob opening and closing function according to claim 3, characterized in that: The drive mechanism is encapsulated in the sealed chamber (21) of the pot stopper body (1), and the bottom plate (11) is a side wall formed between the sealed chamber (21) and the bottom of the pot stopper body (1).

9. A kettle stopper with a knob opening and closing function according to claim 8, characterized in that: Ventilation holes (22) are provided on the base plate (11).

10. A kettle stopper with a knob opening and closing function according to claim 9, characterized in that: The bottom ring of the stopper body (1) is provided with a sealing protrusion (23) for the cap (4) to abut against, and the water inlet (3) and the vent (22) are both located inside the sealing protrusion (23).

Citation Information

Patent Citations

  • CN222171809U