Rotary inner plug device and thermos thereof

Abstract

The utility model relates to a rotary inner plug device and a kettle thereof, the rotary inner plug device comprises a rotary assembly and a rotary seat assembly, the rotary assembly comprises a knob, a knob seat and an unlocking linkage piece, and the rotary seat assembly comprises a water outlet piece, a water outlet lining, a guide column piece, a water inlet sealing gasket and a reset pressure spring. A water outlet is formed in the top of the water outlet piece, a water inlet is formed in the bottom of the water outlet piece, and a water passing channel is formed between the water outlet piece and the water outlet lining. A knob base buckling groove is formed in the outer side wall of the knob base, a push block is arranged on the inner side wall of a groove in the bottom of the knob base, and a lifting slope matched with the push block is arranged at the upper end of the unlocking linkage piece. A water outlet piece counter bore is formed in the water outlet piece, a lining counter bore is formed in the water outlet lining, a lining buckling position is arranged on the inner side wall of the lining counter bore, and the lining buckling position is buckled in a knob base buckling position groove of the knob base, so that the rotating assembly and the rotating base assembly are buckled together. The utility model provides a convenient water outlet mode, and the safety of using the kettle is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water containers, and particularly relates to a rotary inner plug device and a hot water kettle thereof. Background Art

[0002] After the existing hot water kettle is filled with hot water, as the temperature of the hot water in the kettle decreases, a vacuum is generated in the kettle, and it is difficult to open the inner plug of the kettle. If the inner plug of the kettle is forcibly opened, the hot water vapor that overflows instantaneously may scald the user, posing a safety hazard to the user. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a rotary inner plug device and a hot water kettle thereof. A knob is arranged on the inner plug of the hot water kettle, and the sealing gasket is gradually opened through the knob to safely break the vacuum in the hot water kettle, so as to ensure the use safety of the user; meanwhile, a convenient water outlet mode is provided for the hot water kettle.

[0004] The utility model is realized as follows: a rotary inner plug device is provided, which includes a rotary assembly and a rotary seat assembly. The rotary assembly includes a knob, a knob seat and an unlocking linkage. The knob is snap-fitted with the knob seat. A knob seat snap groove is arranged on the outer side wall of the knob seat. The unlocking linkage is movably installed in the groove at the bottom of the knob seat. A push block is arranged on the inner side wall of the groove. A lifting inclined surface cooperating with the push block is arranged at the upper end of the unlocking linkage. The rotary seat assembly includes a water outlet part, a water outlet inner liner, a guide post part, a guide post positioning part, an inlet sealing gasket, an inner liner sealing ring and a return compression spring. A water outlet is arranged at the top of the water outlet part, and an inlet is arranged at the bottom of the water outlet part. A water passage is arranged between the water outlet part and the water outlet inner liner, and the water passage is respectively communicated with the inlet and the water outlet. Guide post through holes are respectively arranged on the water outlet part and the water outlet inner liner. The guide post part penetrates through the guide post through holes. A water outlet part counter bore is arranged in the water outlet part, and an inner liner counter bore is arranged in the water outlet inner liner. The water outlet part counter bore is coaxially communicated with the guide post through hole located in the water outlet part, and the inner liner counter bore is coaxially communicated with the guide post through hole located in the water outlet inner liner. The water outlet inner liner is fixed in the water outlet part counter bore and close to the water outlet. The knob seat and the unlocking linkage are located in the inner liner counter bore. The top of the guide post part extends into the inner liner counter bore and abuts against the bottom surface of the unlocking linkage. The guide post positioning part is sleeved on the upper part of the guide post part and located in the inner liner counter bore. The inlet sealing gasket is arranged at the lower end of the guide post part and below the inlet. The inlet sealing gasket seals the inlet. The inner liner sealing ring is arranged at the lower end of the water outlet inner liner to seal the bottom surface of the lower end of the water outlet inner liner and the bottom surface of the water outlet part counter bore of the water outlet part. The return compression spring is sleeved on the guide post part and located between the guide post positioning part and the water outlet part. A protruding inner liner snap is arranged on the inner side wall of the inner liner counter bore, and the inner liner snap is snap-fitted in the knob seat snap groove of the knob seat, so that the rotary assembly and the rotary seat assembly are snap-fitted together.

[0005] Furthermore, the rotary inner plug device of the present utility model further includes a tea strainer box. A number of tea strainer limiting protrusions are provided on the inner wall of the tea strainer box, and a number of water outlet part limiting grooves are provided on the outer side wall of the water outlet part. The opening of each water outlet part limiting groove is arranged on the bottom surface of the water outlet part, and each tea strainer limiting protrusion is respectively matched with the corresponding water outlet part limiting groove, so that the tea strainer box is detachably installed on the water outlet part.

[0006] Furthermore, a number of knob limiting ribs and a number of knob snap blocks are respectively provided at the bottom of the knob. A number of knob seat limiting grooves and knob seat snap grooves are correspondingly provided on the knob seat. Each knob limiting rib is installed in the corresponding knob seat limiting groove, and the knob snap block is snapped into the knob seat snap groove, so that the knob and the knob seat are snapped together.

[0007] Furthermore, a water outlet part limiting groove is provided on the inner side wall of the water outlet part sink hole. Correspondingly, a lining limiting protrusion is provided on the outer side wall of the water outlet inner lining, and the lining limiting protrusion is located in the corresponding water outlet part limiting groove.

[0008] Furthermore, a guide post seal ring is sleeved on the guide post part. The guide post seal ring is arranged in the guide post through hole of the water outlet part to seal the water outlet part and the guide post part from each other.

[0009] Furthermore, a linkage part limiting post is provided on the outer side wall of the unlocking linkage part. Correspondingly, a lining limiting groove is provided on the inner side wall of the lining sink hole. The linkage part limiting post is located in the corresponding lining limiting groove and moves up and down along the lining limiting groove.

[0010] Furthermore, a knob seat seal ring is also provided on the outer side wall of the knob seat. The knob seat seal ring is attached to the inner wall of the lining sink hole to form a seal between the lining sink hole and the knob seat.

[0011] Furthermore, the rotary assembly further includes a guide rod part. The guide rod part includes a guide rod head and a guide rod fixedly connected together. The guide rod head is located inside the knob, and the guide rod sequentially penetrates through the axes of the knob, the knob seat, the unlocking linkage part, the guide post part, and the water inlet seal gasket and extends to the outside of the water inlet seal gasket. The unlocking linkage part and the guide post part move up and down along the guide rod at the same time. An external thread is provided on the guide rod, and a knob nut is provided at the bottom of the knob to cooperate with the external thread on the guide rod and fix the guide rod part and the knob together.

[0012] Furthermore, a knob seat hole is provided on the knob seat. A contact rod and a compression spring are arranged in the knob seat hole. The upper part of the compression spring is attached to the bottom surface of the knob, and the end of the contact rod protrudes out of the knob seat hole. A plurality of uniformly arranged gear grooves are provided on the end face of the water outlet inner lining. The end of the contact rod abuts against the gear grooves, and the contact rod follows the rotation of the knob and slides along the gear groove surface.

[0013] The present utility model is realized as follows: A hot water kettle is provided, and a hot water kettle opening is arranged at one end of the hot water kettle, and the aforementioned rotary inner plug device is arranged in the hot water kettle opening.

[0014] Compared with the prior art, for the rotary inner plug device and the hot water kettle of the present utility model, the rotary inner plug device includes a rotary assembly and a rotary seat assembly. The rotary assembly includes a knob, a knob seat and an unlocking linkage. The rotary seat assembly includes a water outlet member, a water outlet inner liner, a guide post member, an inlet sealing gasket and a return compression spring. A water outlet is arranged at the top of the water outlet member, and an inlet is arranged at the bottom of the water outlet member. A water passing channel is arranged between the water outlet member and the water outlet inner liner, and the water passing channel is respectively communicated with the inlet and the water outlet. A button seat retaining groove is arranged on the outer side wall of the knob seat. The unlocking linkage is movably installed in the groove at the bottom of the knob seat. A push block is arranged on the inner side wall of the groove, and a lifting inclined surface cooperating with the push block is arranged at the upper end of the unlocking linkage. Guide post through holes are respectively arranged on the water outlet member and the water outlet inner liner. The guide post member penetrates through the guide post through holes. A water outlet member counterbore is arranged in the water outlet member, and a liner counterbore is arranged in the water outlet inner liner. The top of the guide post member extends into the liner counterbore and fits against the bottom surface of the unlocking linkage. The inlet sealing gasket is arranged at the lower end of the guide post member and seals the inlet. Rotate the knob, and the push block slides upward along the lifting inclined surface, forcing the unlocking linkage to drive the guide post member to gradually move downward, so that the inlet sealing gasket gradually opens the seal of the inlet until the inlet is opened to the maximum position. The return compression spring is sleeved on the guide post member and is located between the guide post positioning member and the water outlet member. A protruding liner retaining portion is arranged on the inner side wall of the liner counterbore, and the liner retaining portion is buckled in the button seat retaining groove of the knob seat, so that the rotary assembly and the rotary seat assembly are buckled together. When the knob is rotated and in the first position, the unlocking linkage is in the highest position. Under the release force of the return compression spring, the guide post member is in the highest position, and the inlet sealing gasket seals the inlet. During the process of rotating the knob in the reverse direction and gradually rotating it to the second position, the push block slides upward along the lifting inclined surface and drives the unlocking linkage to gradually move downward. The unlocking linkage and the guide post member are simultaneously gradually in the lowest position, and the inlet sealing gasket gradually leaves the inlet, and the inlet gradually opens to the maximum state. The rotary inner plug device of the present utility model is provided with a knob, and the inlet sealing gasket is gradually opened through the knob, safely breaking the vacuum in the hot water kettle, so as to ensure the use safety of the user. At the same time, a water outlet, an inlet and a water passing channel are arranged. After the inlet is opened by the knob, the water in the hot water kettle can be poured out from the water outlet through the inlet and the water passing channel, providing a convenient water outlet mode for the hot water kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional schematic diagram of a preferred embodiment of the rotary inner plug device of the present utility model;

[0016] Figure 2 is Figure 1 a full-section schematic diagram;

[0017] Figure 3 is Figure 1 exploded view of the rotating component and the rotating base component in

[0018] Figure 4 is Figure 3 exploded view of the rotating component in

[0019] Figure 5 is Figure 3 exploded view of the rotating base component in

[0020] Figure 6 is Figure 4 three - dimensional view of the knob in

[0021] Figure 7 is Figure 4 three - dimensional view of the knob base in

[0022] Figure 8 is Figure 5 three - dimensional view of the water outlet part in

[0023] Figure 9 is Figure 5 three - dimensional view of the water outlet inner lining in

[0024] Figure 10 is the three - dimensional view of the hot water kettle of the present utility model;

[0025] Figure 11 is Figure 10 full - section view of

[0026] Figure 12 is Figure 11 schematic diagram of the water inlet of the hot water kettle in an open state, and the arrow - marked line segment in the figure indicates the flow direction of the water flow in the water passage. Detailed implementation mode

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] Please refer to Figures 1 to 9 and Figure 12 shown, a preferred embodiment of the rotating inner plug device of the present utility model includes a rotating component 1, a rotating base component 2 and a tea strainer box 3.

[0029] The rotating assembly 1 includes a knob 11, a knob base 12, an unlocking linkage 13, and a guide rod member 14. The knob 11 is snap-fitted to the knob base 12. A knob base snap groove 121 is provided on the outer side wall of the knob base 12. The unlocking linkage 13 is movably installed in the groove at the bottom of the knob base 12. A push block 122 is provided on the inner side wall of the groove. A lifting inclined surface 131 that cooperates with the push block 122 is provided at the upper end of the unlocking linkage 13. When the knob 11 and the knob base 12 are rotated clockwise or counterclockwise simultaneously, during the process of the push block 122 sliding up and down along the lifting inclined surface 131, the unlocking linkage 13 is driven to move up and down.

[0030] A knob base hole 123 is further provided on the knob base 12. The knob base hole 123 is located at the end edge of the knob base 12. A contact rod 15 and a compression spring 16 are provided in the knob base hole 123. The upper part of the compression spring 16 abuts against the bottom surface of the knob 11. The end of the contact rod 15 protrudes outside the knob base hole 123.

[0031] The guide rod member 14 includes a guide rod head 141 and a guide rod 142 that are fixedly connected together. The guide rod head 141 is located inside the knob 11.

[0032] The rotating base assembly 2 includes a water outlet member 21, a water outlet inner liner 22, a guide post member 23, a guide post positioning member 24, an inlet sealing gasket 25, an inner liner sealing ring 26, and a return compression spring 27. A water outlet 211 is provided at the top of the water outlet member 21. An inlet 212 is provided at the bottom of the water outlet member 21. A water passage 213 is provided between the water outlet member 21 and the water outlet inner liner 22. The water passage 213 is respectively communicated with the inlet 212 and the water outlet 211. As Figure 12 shown. Guide post through holes 28 are respectively provided on the water outlet member 21 and the water outlet inner liner 22. The guide post member 23 passes through the guide post through holes 28. A water outlet member counterbore 214 is provided inside the water outlet member 21. An inner liner counterbore 221 is provided inside the water outlet inner liner 22. The water outlet member counterbore 214 is coaxially communicated with the guide post through hole 28 located on the water outlet member 21. The inner liner counterbore 221 is coaxially communicated with the guide post through hole 28 located on the water outlet inner liner 22. The water outlet inner liner 22 is fixed inside the water outlet member counterbore 214 and is close to the water outlet 211. The knob base 12 and the unlocking linkage 13 are located inside the inner liner counterbore 221. The water outlet inner liner 22 is fixed to the water outlet member 21 by two inner liner screws 29.

[0033] The top of the guide post member 23 extends into the inner liner counterbore 221 and fits against the bottom surface of the unlocking linkage member 13. The guide post positioning member 24 is sleeved on the upper part of the guide post member 23 and is located within the inner liner counterbore 221. The water inlet gasket 25 is disposed at the lower end of the guide post member 23 and is located below the water inlet 212. The water inlet gasket 25 seals the water inlet 212. Rotate the knob 11, and the push block 122 slides upward along the lifting inclined surface 131, forcing the unlocking linkage member 13 to drive the guide post member 23 to gradually move downward, so that the water inlet gasket 25 gradually opens the seal of the water inlet 212 until the water inlet 212 is opened to the maximum position.

[0034] The inner liner sealing ring 26 is disposed at the lower end of the water outlet inner liner 22, sealing the bottom surface of the lower end of the water outlet inner liner 22 and the bottom surface of the water outlet counterbore 214 of the water outlet member 21. The return compression spring 27 is sleeved on the guide post member 23 and is located between the guide post positioning member 24 and the water outlet member 21. A raised inner liner retaining position 222 is provided on the inner side wall of the inner liner counterbore 221, and the inner liner retaining position 222 is snapped into the retaining position groove 121 of the knob base 12, so that the rotating assembly 1 and the rotating base assembly 2 are snapped together.

[0035] When the knob 11 is rotated and in the first position, the unlocking linkage member 13 is at the highest position. Under the release force of the return compression spring 27, the guide post member 23 is at the highest position, and the water inlet gasket 25 seals the water inlet 212. During the process of rotating the knob 11 in the reverse direction and gradually rotating it to the second position, the push block 122 slides upward along the lifting inclined surface 131 and drives the unlocking linkage member 13 to gradually move downward. The unlocking linkage member 13 and the guide post member 23 are simultaneously gradually in the lowest position, the water inlet gasket 25 gradually leaves the water inlet 212, and the water inlet 212 gradually opens to the maximum state.

[0036] A number of knob limiting ribs 111 and a number of knob retaining blocks 112 are respectively provided at the bottom of the knob 11. Corresponding thereto, a number of knob base limiting grooves 124 and knob base retaining grooves 125 are provided on the knob base 12. Each knob limiting rib 111 is installed in the corresponding knob base limiting groove 124, and the knob retaining block 112 is snapped into the knob base retaining groove 125, so that the knob 11 and the knob base 12 are snapped together. In this embodiment, four knob limiting ribs 111 and four knob retaining blocks 112 are respectively provided at the bottom of the knob 11, and four knob base limiting grooves 124 are provided on the knob base 12. A knob cover 113 and a position identifier 114 are also respectively provided on the knob 11.

[0037] A knob base sealing ring 126 is further provided on the outer side wall of the knob base 12. The knob base sealing ring 126 fits against the inner wall of the inner liner counterbore 221, forming a seal between the inner liner counterbore 221 and the knob base 12.

[0038] The guide rod 142 sequentially penetrates through the axes of the knob 11, the knob base 12, the unlocking linkage 13, the guide post member 23, and the water inlet gasket 25 and extends to the outside of the water inlet gasket 25. The unlocking linkage 13 and the guide post member 23 move up and down along the guide rod 142 simultaneously. External threads are provided on the guide rod 142, and a knob nut 17 is provided at the bottom of the knob 11 to cooperate with the external threads on the guide rod 142 and fix the guide rod member 14 to the knob 11.

[0039] A plurality of tea strainer limiting protrusions 31 are provided on the inner wall of the tea strainer box 3, and a plurality of water outlet member limiting grooves 215 are provided on the outer side wall of the water outlet member 21. The opening of each water outlet member limiting groove 215 is provided on the bottom surface of the water outlet member 21. Each tea strainer limiting protrusion 31 cooperates with the corresponding water outlet member limiting groove 215 respectively, so that the tea strainer box 3 is detachably mounted on the water outlet member 21. In this embodiment, three tea strainer limiting protrusions 31 are provided on the inner wall of the tea strainer box 3. Correspondingly, three water outlet member limiting grooves 215 are provided on the outer side wall of the water outlet member 21.

[0040] The provision of the tea strainer box 3 brings a new usage function to the rotary inner plug device, facilitating the user to use the rotary inner plug device to make tea.

[0041] A water outlet member limiting groove 216 is provided on the inner side wall of the water outlet member counterbore 214. Correspondingly, a lining limiting protrusion 223 is provided on the outer side wall of the water outlet lining 22. The lining limiting protrusion 223 is located in the corresponding water outlet member limiting groove 216.

[0042] A linkage member limiting post 132 is provided on the outer side wall of the unlocking linkage 13. Correspondingly, a lining limiting groove 224 is provided on the inner side wall of the lining counterbore 221. The linkage member limiting post 132 is located in the corresponding lining limiting groove 224 and moves up and down along the lining limiting groove 223.

[0043] A guide post seal ring 231 is sleeved on the guide post member 23. The guide post seal ring 231 is arranged in the guide post through hole 28 of the water outlet member 21 to seal the water outlet member 21 and the guide post member 23 from each other.

[0044] A plurality of uniformly arranged gear slots 225 are provided on the end face of the water outlet lining 22. The end of the contact rod 15 abuts against the gear slots 225. The contact rod 15 follows the rotation of the knob 11 and slides along the surface of the gear slots 225, bringing a feeling of sliding between different gear slots 225 to the rotation of the knob 11. At the same time, the contact rod 15 makes a sound when sliding between different gear slots 225, bringing different experiences of opening and closing the water inlet 212 to the user.

[0045] External threads 217 and an outer sealing ring 218 that cooperate with the inner side wall of the opening of the hot water kettle are provided on the outer side wall of the water outlet member 21.

[0046] Please also refer to Figure 10 , Figure 11 and Figure 12 As shown, the present utility model also discloses a hot water kettle 4. One end of the hot water kettle 4 is provided with a hot water kettle opening, and the aforementioned rotary inner plug device is arranged in the hot water kettle opening.

[0047] The hot water kettle 4 includes a kettle body 5 and a kettle lid 6. The hot water kettle opening is arranged on the kettle body 5. A magnetic ring 7 is arranged in the kettle body 5, and a magnetic attracting ring 8 is arranged in the kettle lid 6. The magnetic ring 7 is located near the hot water kettle opening at the upper part of the kettle body 5, and the magnetic attracting ring 8 is located at the lower part of the kettle lid 6. The magnetic ring 7 and the magnetic attracting ring 8 attract each other, so that the kettle body 5 and the kettle lid 6 are adsorbed and fitted together, facilitating the quick buckling and removal of the kettle lid 6.

[0048] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rotary plug device, characterized in that: The invention comprises a rotating assembly and a rotating seat assembly, wherein the rotating assembly comprises a knob, a knob seat and an unlocking linkage part, the knob is buckled and connected with the knob seat, a button seat buckling groove is arranged on the outer wall of the knob seat, the unlocking linkage part is movably installed in the groove at the bottom of the knob seat, a push block is arranged on the inner wall of the groove, and a lifting inclined surface cooperating with the push block is arranged at the upper end of the unlocking linkage part; the rotating seat assembly comprises a water outlet part, a water outlet lining, a guide column part, a guide column positioning part, a water inlet sealing gasket, a liner sealing ring and a reset compression spring, a water outlet is arranged at the top of the water outlet part, a water inlet is arranged at the bottom of the water outlet part, a water passage is arranged between the water outlet part and the water outlet lining, the water passage is communicated with the water inlet and the water outlet respectively, guide column through holes are arranged on the water outlet part and the water outlet lining respectively, the guide column part passes through the guide column through holes, a water outlet part sink hole is arranged in the water outlet part, a liner sink hole is arranged in the water outlet lining, the water outlet part sink hole is connected with the sink hole at the outlet The guide post through hole of the water piece is coaxially connected, the liner countersunk hole is coaxially connected with the guide post through hole located in the water outlet liner, the water outlet liner is fixed in the countersunk hole of the water outlet piece and is close to the water outlet, the knob seat and the unlocking linkage piece are located in the liner countersunk hole, the top of the guide post piece extends into the liner countersunk hole and fits on the bottom surface of the unlocking linkage piece, the guide post positioning piece is sleeved on the upper part of the guide post piece and is located in the liner countersunk hole, the water inlet sealing gasket is arranged at the lower end of the guide post piece and is located at the lower part of the water inlet, the water inlet sealing gasket seals the water inlet, the liner sealing ring is arranged at the lower end part of the water outlet liner, the lower end surface of the water outlet liner and the bottom surface of the water outlet piece countersunk hole of the water outlet piece are sealed to each other, the reset compression spring is sleeved on the guide post piece and is located between the guide post positioning piece and the water outlet piece, a raised liner buckle position is arranged on the inner side wall of the liner countersunk hole, the liner buckle position is buckled in the button seat buckle position groove of the knob seat, so that the rotating assembly and the rotating seat assembly are buckled together.

2. The rotary plugging device according to claim 1, characterized in that: It also includes a tea strainer box, on the inner wall of which a plurality of tea strainer limiting protrusions are arranged, and on the outer wall of the water outlet part a plurality of water outlet limiting grooves are arranged, and the opening of each water outlet limiting groove is arranged on the bottom surface of the water outlet part, and each tea strainer limiting protrusion is respectively matched with the corresponding water outlet limiting groove, so that the tea strainer box can be detachably installed on the water outlet part.

3. The rotary plugging device according to claim 1, characterized in that: A plurality of knob limiting ribs and a plurality of knob buckle blocks are respectively arranged at the bottom of the knob, and a plurality of button seat limiting grooves and button seat buckle grooves are correspondingly arranged on the knob seat, each knob limiting rib is installed in the corresponding button seat limiting groove, and the knob buckle block is buckled in the button seat buckle groove.

4. The rotary plugging device according to claim 1, characterized in that: A water outlet limiting groove is arranged on the inner side wall of the water outlet counterbore, and correspondingly, a liner limiting protrusion is arranged on the outer side wall of the water outlet liner, and the liner limiting protrusion is located in the corresponding water outlet limiting groove.

5. The rotary plugging device according to claim 1, characterized in that: A guide post sealing ring is sleeved on the guide post member, and the guide post sealing ring is arranged in the guide post through hole of the water outlet member to seal the water outlet member and the guide post member.

6. The rotary plugging device according to claim 1, characterized in that: A linkage limiting column is arranged on the outer side wall of the unlocking linkage, and correspondingly, a lining limiting groove is arranged on the inner side wall of the lining counterbore, and the linkage limiting column is located in the corresponding lining limiting groove and moves up and down along the lining limiting groove.

7. The rotary plugging device according to claim 1, characterized in that: A button seat sealing ring is also arranged on the outer side wall of the knob seat, and the button seat sealing ring is fitted with the inner wall of the liner countersunk hole to form a seal between the liner countersunk hole and the knob seat.

8. The rotary plugging device according to any one of claims 1 to 7, characterized in that: The rotating assembly also includes a guide rod member, which includes a guide rod head and a guide rod fixedly connected together, the guide rod head is located in the knob, and the guide rod sequentially passes through the axis of the knob, the knob seat, the unlocking linkage member, the guide column member and the water inlet sealing gasket and extends to the outside of the water inlet sealing gasket, and the unlocking linkage member and the guide column member move up and down along the guide rod at the same time; an external thread is arranged on the guide rod, and a knob nut is arranged at the bottom of the knob to cooperate with the external thread on the guide rod and fix the guide rod member and the knob together.

9. The rotary plugging device according to any one of claims 1 to 7, characterized in that: A button seat hole is arranged on the knob seat, and a contact rod and a compression spring are arranged in the button seat hole. The upper part of the compression spring is attached to the bottom surface of the knob, and the end of the contact rod protrudes out of the button seat hole. A plurality of evenly arranged gear grooves are arranged on the end surface of the water outlet liner, and the end of the contact rod abuts against the gear groove, and the contact rod rotates with the knob and slides along the gear groove surface.

10. A kettle, wherein one end of the kettle is provided with a kettle opening, characterized in that: A rotating inner plug device as described in any one of claims 1 to 9 is arranged in the opening of the kettle.

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