Heat preservation kettle cover

Abstract

The utility model discloses a heat preservation kettle cover which comprises a water outlet valve assembly and a cover body provided with a water outlet cavity, the water outlet cavity is provided with a water outlet communicated with a spout of a heat preservation kettle and a water inlet communicated with an inner cavity of a kettle body of the heat preservation kettle, and the water outlet valve assembly comprises a valve shaft and a valve block. The valve shaft can be axially and movably mounted on the cover body and is provided with an upper limit position and a lower limit position, the valve shaft is provided with a limiting concave part and a mounting channel communicated with the limiting concave part, the mounting channel comprises an inlet communicated with the outside, and the valve plate is detachably connected to the valve shaft; the water inlet can be opened or closed in the stroke of switching between the upper limit position and the lower limit position along with the valve shaft; the valve plate is provided with a limiting convex part, the limiting convex part can slide into the limiting concave part from the inlet through the mounting channel, and the limiting convex part can be propped against and limited by the wall of the limiting concave part, so that the valve plate is detachably connected to the valve shaft. In the thermos flask cover, the valve plate can be detached from the valve shaft, so that the interior of the water outlet cavity is convenient to clean, and the valve plate is convenient and rapid to detach and install.

Description

Technical Field

[0001] The present application relates to the technical field of heat preservation pots, and specifically relates to a heat preservation pot lid. Background Art

[0002] A heat preservation pot is a common water container in daily life, with a heat preservation function, mainly used for keeping boiled water warm. It usually consists of a heat preservation pot body and a heat preservation pot lid. The heat preservation pot lid generally includes a lid body and a water outlet valve. The lid body is provided with a water outlet cavity. The water outlet valve includes a valve shaft and a valve plate. The valve plate moves relative to the lid body under the drive of the valve shaft to open or close the water outlet cavity. When the valve plate opens the water outlet cavity, the water outlet cavity communicates the inner cavity of the heat preservation pot body with the spout, enabling the heat preservation pot to discharge water outward. When the valve plate closes the water outlet cavity, the inner cavity of the heat preservation pot body and the spout are no longer communicated, and the heat preservation pot cannot discharge water outward. The inner cavity of the heat preservation pot body is closed, which helps with heat preservation. During use, it is easy for dirt and scale to accumulate on the upper surface of the water outlet cavity and the valve plate. If daily cleaning is not in place, a large number of bacteria are likely to breed, which can easily affect human health.

[0003] The upper surface of the valve plate and the water outlet cavity form a closed space. Although the valve plate can move relative to the lid body, the moving distance is small, so that the distance between the valve plate and the lid body is still not large enough to facilitate the cleaning of the water outlet cavity and the upper surface of the valve plate. Therefore, the problem of difficult cleaning of the valve plate and the water outlet cavity is widespread. However, in the prior art, most valve plates are not detachable. Even for detachable structures, the prior art often designs the valve plate and the valve rod as an integral component and designs this component as a detachable structure. However, this structure has the problem that the disassembly steps are relatively cumbersome. Users often resist disassembly and cleaning due to the cumbersome operation during use. Therefore, overall, the problem of difficult cleaning has not been solved. Summary of the Utility Model

[0004] The present application provides a heat preservation pot lid to improve or solve to a certain extent the technical problem that the valve plate of the existing heat preservation pot lid is not easy to disassemble and assemble, resulting in difficult cleaning of the water outlet cavity.

[0005] The technical solution adopted by the present application is as follows:

[0006] A heat-insulating kettle lid includes a lid body. The lid body is provided with a water outlet cavity. The water outlet cavity has a water outlet communicating with the spout of the heat-insulating kettle and a water inlet communicating with the inner cavity of the heat-insulating kettle. The heat-insulating kettle lid further includes a water outlet valve assembly. The water outlet valve assembly includes: a valve shaft movably installed axially on the lid body; the valve shaft is provided with a limiting recess and an installation channel communicating with the limiting recess. The installation channel includes an inlet communicating with the outside; a valve piece detachably connected to the valve shaft and movable with the valve shaft to open or close the water inlet; wherein, the valve piece is provided with a limiting protrusion. The limiting protrusion can slide from the inlet through the installation channel into the limiting recess, and the limiting protrusion can be abutted and limited by the wall of the limiting recess, so that the valve piece is detachably connected to the valve shaft.

[0007] The heat-insulating kettle lid in this application further has the following additional technical features:

[0008] The limiting protrusion has a first position abutting against the wall of the limiting recess and a second position that can move into the installation channel; a detachable limiting member is installed on the lid body. When the limiting member is installed on the lid body, it can abut against the valve piece to limit the movement of the limiting protrusion from the first position to the second position.

[0009] The limiting member is configured as a sealing body detachably installed at the water inlet. When the sealing body abuts against the valve piece, the valve piece closes the water inlet; wherein, the limiting protrusion further has a third position located between the first position and the second position. When the limiting protrusion is located at the third position, the sealing body abuts against the valve piece to limit the movement of the limiting protrusion to the second position.

[0010] The installation channel and the limiting recess are arranged at intervals along the circumferential direction of the valve shaft. The valve shaft is provided with a communication channel communicating the installation channel and the limiting recess. The communication channel extends along the circumferential direction of the valve shaft. The valve piece can rotate relative to the valve shaft to switch the limiting protrusion between the installation channel and the limiting recess.

[0011] The limiting recess extends along the axial direction of the valve shaft. One end of the limiting recess in the extending direction is provided with a first stop wall for abutting and limiting the limiting protrusion. The other end of the limiting recess communicates with the communication channel; the limiting recess and the installation channel are separated by a second stop wall.

[0012] A limiting elastic member capable of elastically deforming axially along the valve shaft is provided between the lid body and the valve piece. One end of the limiting elastic member abuts against the lid body, and the other end of the limiting elastic member abuts against the valve piece to abut the limiting protrusion against the first stop wall.

[0013] A mounting hole is provided in the center of the valve plate, and the valve plate is detachably sleeved on the valve shaft through the mounting hole. Two limiting convex parts are symmetrically arranged on the inner wall of the mounting hole.

[0014] The cover body is provided with a sleeve that penetrates the water outlet cavity and extends upward. The valve shaft is arranged in the sleeve and can axially move in the vertical direction along the sleeve. The valve plate is connected to the lower end of the valve shaft.

[0015] A sealing member is sleeved on the valve shaft, and the sealing member forms a seal between the valve shaft and the sleeve.

[0016] The valve shaft has an upper limit position and a lower limit position; the upper end of the valve shaft extends out of the sleeve and is provided with a gland. A return spring is sleeved outside the sleeve. One end of the return spring abuts against the gland, and the other end of the return spring abuts against the cover body. The return spring can drive the valve shaft to reset from the lower limit position to the upper limit position.

[0017] Due to the adoption of the above technical solutions, the technical effects achieved by this application are as follows:

[0018] 1. For the thermos flask lid provided by this application, the valve plate is used to open or close the water inlet of the water outlet cavity, and the valve plate is detachably installed on the valve shaft. Therefore, the valve plate can be detached from the valve shaft alone to expose the entire water outlet cavity, which is convenient for comprehensively cleaning the deposits and scale formed in the water outlet cavity, and reducing the growth of bacteria. The valve plate and the valve shaft are detachably connected through the limiting cooperation of the limiting concave part and the limiting convex part. Compared with the existing component structure, this solution is more convenient for disassembly and assembly. Without the need for tools, the valve plate can be directly removed without disassembling the entire thermos flask lid, and there is no need to additionally add accessories, and the operation is also more convenient, which also alleviates the problem that users are reluctant to operate. The valve shaft is provided with a mounting channel communicating with the limiting concave part, which provides a guiding function for the assembly process of the limiting convex part sliding into the limiting concave part or the disassembly process of detaching from the valve shaft, and further improves the convenience of disassembling and assembling the valve plate. Moreover, the limiting concave part and the mounting channel can be integrally formed during the manufacturing process of the valve shaft, and the production is very convenient. At the same time, the limiting concave part and the mounting channel are larger in size, which is more convenient for cleaning and less likely to hide dirt and scale.

[0019] In addition, according to actual use experience, generally, there will be no dirt and scale hidden inside the thermos flask lid. Therefore, by adopting the solution of separately disassembling the valve plate and cleaning the valve plate and the water outlet cavity, the problem that the thermos flask lid is prone to hiding dirt and scale can be effectively alleviated.

[0020] 2. As a preferred embodiment of the present application, when the limiting recess is in the first position, it is limited by the wall of the limiting recess. When the limiting recess is in the second position, it can enter the installation channel from the limiting recess and can further detach from the valve shaft through the installation channel. Therefore, the cover body is equipped with a detachable limiting member. When the limiting member is installed on the cover body, the limiting member is abutted against the valve plate to limit the limiting convex portion from the first position to the second position, so that except for the case where the valve plate is manually removed from the valve shaft, the limiting convex portion can be effectively prevented from mistakenly entering the installation channel from the limiting recess, thereby helping to limit the valve plate from automatically detaching from the valve shaft, ensuring that the valve plate is stably limited on the valve shaft and the insulation pot cover can be used normally. The limiting member is detachably installed at the water inlet. When the valve plate needs to be removed from the valve shaft, the limiting member needs to be removed from the cover body first, and then the valve plate can be further removed.

[0021] 3. As a preferred embodiment of the present application, the limit member is configured as a sealing body detachably mounted at the water inlet, and when the sealing body abuts against the valve plate, the valve plate closes the water inlet and the limit protrusion is located at the first position or at a third position between the first position and the second position, so that the limit member can be used not only to limit the movement of the valve plate to the second position, but also to cooperate with the valve plate to abut against and seal the water inlet, thereby realizing multiple uses of one structure.

[0022] 4. As a preferred embodiment of the present application, the installation channel and the limiting recess are arranged at intervals along the circumference of the valve shaft and are connected through the connecting channel, so that the valve plate can be rotated relative to the valve shaft to switch between the installation channel and the limiting recess through the connecting channel. When installing the valve plate, the limiting protrusion first enters the installation channel, and then the valve plate is rotated relative to the valve shaft at a suitable position, and then the limiting protrusion enters the limiting recess through the connecting channel, so that the valve plate and the valve shaft are installed in place; when removing the valve plate, the limiting protrusion enters the installation channel through the connecting channel at a suitable position, and then the limiting protrusion slides out through the installation channel and detaches from the valve shaft, so that the valve plate and the valve shaft are separated. Therefore, after the valve plate and the valve shaft are installed in place, it is only necessary to limit the relative rotation of the valve plate and the valve shaft, so that the valve plate can be limited on the valve shaft to work stably, which is convenient for limiting.

[0023] 5. As a preferred embodiment of the present application, a limiting elastic member which can be elastically deformed along the axial direction of the valve shaft is provided between the cover body and the valve plate, one end of the limiting elastic member abuts against the cover body, and the other end of the limiting elastic member abuts against the valve plate, so as to press the limiting protrusion against the first retaining wall, so that when there is no external force, the valve plate can be stably stopped and limited by the limiting elastic member at a position abutting against the first retaining wall, thereby achieving stable installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0025] Figure 1 is a cross-sectional view of the heat preservation kettle lid and the heat preservation kettle body provided by the embodiment of the present application;

[0026] Figure 2 is a cross-sectional view of the heat preservation kettle lid provided by the embodiment of the present application;

[0027] Figure 3 is an exploded view of the heat preservation kettle lid provided by the embodiment of the present application;

[0028] Figure 4 is an assembly drawing of the heat preservation kettle lid provided by the embodiment of the present application;

[0029] Figure 5 is a schematic structural diagram of the valve shaft provided by the embodiment of the present application;

[0030] Figure 6 is a schematic structural diagram of the valve plate provided by the embodiment of the present application;

[0031] Figure 7 is a cross-sectional view of the lid body provided by the embodiment of the present application.

[0032] List of components and reference numerals:

[0033] 1 Lid body, 11 Water outlet cavity, 12 Water outlet, 13 Water inlet, 14 Sleeve;

[0034] 2 Valve shaft, 21 Limiting recess, 22 Installation channel, 23 Communication channel, 24 First stop wall, 25 Second stop wall;

[0035] 3 Valve plate, 31 Limiting convex part, 32 Installation hole;

[0036] 4 Heat preservation kettle body;

[0037] 5 Sealing body;

[0038] 6 Limiting elastic member;

[0039] 7 Sealing member;

[0040] 8 gland;

[0041] 9 Return spring;

[0042] 10 Button. Detailed implementation manners

[0043] In order to more clearly illustrate the overall concept of the present application, the following is a detailed description by way of example in conjunction with the drawings of the specification.

[0044] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application may be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0045] In addition, in the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0046] In the present application, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0047] In the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0048] In an embodiment of the present application, a heat-preserving kettle lid is provided. For the convenience of description and understanding, the following content provided by the present application is all elaborated on the basis of the structure of the illustrated product. Of course, those skilled in the art can understand that the above structure is only a specific example and schematic description, and does not constitute a specific limitation to the technical solution provided by the present application.

[0049] Refer to Figures 1 to 7As shown in the figure, a heat-insulating kettle lid provided by the present application includes a lid body 1. The lid body 1 is provided with a water outlet cavity 11. The water outlet cavity 11 has a water outlet 12 communicating with the spout of the heat-insulating kettle and a water inlet 13 communicating with the inner cavity of the kettle body of the heat-insulating kettle. The heat-insulating kettle lid further includes a water outlet valve assembly. The water outlet valve assembly includes a valve shaft 2 and a valve plate 3. Specifically, the valve shaft 2 is axially movably installed on the lid body 1 and has an upper limit position and a lower limit position. The valve shaft 2 is provided with a limit recess 21 and an installation channel 22 communicating with the limit recess 21. The installation channel 22 includes an inlet communicating with the outside; the valve plate 3 is detachably connected to the valve shaft 2 and can move with the valve shaft 2 to open or close the water inlet 13. Wherein, the valve plate 3 is provided with a limit protrusion 31. The limit protrusion 31 can slide from the inlet through the installation channel 22 into the limit recess 21, and the limit protrusion 31 can be abutted and limited by the wall of the limit recess 21, so that the valve plate 3 is detachably connected to the valve shaft 2.

[0050] Taking Figure 1 the state where the heat-insulating kettle lid shown in the figure is installed on the heat-insulating kettle body 4 as an example, Figure 1 and Figure 2 schematically shows that the valve shaft 2 is vertically installed on the lid body 1, the valve plate 3 is detachably installed at the bottom of the valve shaft 2 and is used to open or close the water inlet 13 of the water outlet cavity 11. When the valve shaft 2 moves from the upper limit position to the lower limit position under the drive of an external force, the valve plate 3 moves downward synchronously to open the water inlet 13 at the bottom of the water outlet cavity 11. At this time, the water in the heat-insulating kettle body 4 can flow through the water outlet cavity 11 to the spout and be discharged to the outside. When the valve shaft 2 drives the valve plate 3 to move upward from the lower limit position to Figure 2 the upper limit position shown in the figure, the valve plate 3 closes the water inlet 13 at the bottom of the water outlet cavity 11. At this time, the water in the heat-insulating kettle body 4 can no longer enter the water outlet cavity 11.

[0051] The valve plate 3 is detachably installed on the valve shaft 2. Figure 2 The figure shows the state where the valve plate 3 is installed on the valve shaft 2. Figure 3The middle part shows the state where the valve plate 3 is removed from the valve shaft 2. Therefore, the valve plate 3 can be removed from the valve shaft 2 to expose the water outlet chamber 11 as a whole, which is convenient for comprehensive cleaning of the silt and scale formed in the water outlet chamber 11 and reduces bacterial growth. The valve plate 3 and the valve shaft 2 are detachably connected through the limiting cooperation of the limiting recess 21 and the limiting protrusion 31. Compared with the prior art, the disassembly and assembly is more convenient, and the valve plate 3 can be directly removed without the aid of tools or the overall disassembly of the thermos pot cover, and no additional accessories are required. The valve shaft 2 is provided with an installation channel 22 connected to the limiting recess 21, which provides a guiding role for the assembly process of the limiting protrusion 31 sliding into the limiting recess 21 or the disassembly process of the limiting protrusion 31 from the valve shaft 2, and further improves the convenience of disassembly and assembly of the valve plate 3. Moreover, the limiting recess 21 and the installation channel 22 can be integrally formed during the manufacturing process of the valve shaft 2, and the production is also very convenient. At the same time, the size of the limiting recess 21 and the installation channel 22 can also be designed to be larger, which makes cleaning more convenient and less likely to harbor dirt.

[0052] During installation, the limiting protrusion 31 of the valve plate 3 is aligned with the entrance of the installation passage 22 , and then the valve plate 3 enters the limiting recess 21 along the installation passage 22 to be limited.

[0053] As a preferred embodiment of the present application, the limiting protrusion 31 has a first position in which it abuts against the wall of the limiting recess 21 to allow the valve plate 3 and the valve shaft 2 to move synchronously, and a second position in which it can move into the installation channel 22; the cover body 1 is equipped with a detachable limiting member, which can abut against the valve plate 3 when installed on the cover body 1, so as to limit the limiting protrusion 31 from moving from the first position to the second position. It can be understood by those skilled in the art that when the limiting recess 21 is in the first position, it abuts against the wall of the limiting recess 21 to be limited, thereby limiting the valve plate 3 and the valve shaft 2 together; and when the limiting recess 21 is in the second position, it can enter the installation channel 22 from the limiting recess 21 and can further detach from the valve shaft 2 through the entrance of the installation channel 22, thereby separating the valve plate 3 and the valve shaft 2. Therefore, by installing a detachable limiting member on the cover body 1, when the limiting member is installed on the cover body 1, the limiting member and the valve plate 3 to limit the movement of the limiting protrusion 31 from the first position to the second position. In other words, under the limiting action of the limiting member, the limiting protrusion 31 cannot move to a position where it can enter the installation channel 22 from the limiting recess 21, thereby effectively preventing the valve plate 3 from mistakenly entering the installation channel 22 from the limiting recess 21 except when the valve plate 3 is manually removed from the valve shaft 2, thereby helping to limit the automatic separation of the valve plate 3 from the valve shaft 2, ensuring that the valve plate 3 is stably limited on the valve shaft 2 and the thermos pot cover can be used normally. The limiting member is detachably installed at the water inlet 13. When the valve plate 3 needs to be removed from the valve shaft 2, the limiting member needs to be removed from the cover body 1 first, and then the valve plate 3 can be further removed.

[0054] The present application does not limit the specific structure of the limiter. In a preferred embodiment, Figure 2 and Figure 3 As shown, the limiting member is configured as a sealing body 5 detachably mounted at the water inlet 13, and when the sealing body 5 abuts against the valve plate 3, the valve plate 3 closes the water inlet 13; wherein, the limiting protrusion 31 also has a third position, and the third position is located between the first position and the second position, and when the limiting protrusion 31 is located at the third position, the sealing body 5 abuts against the valve plate 3 to limit the movement of the limiting protrusion 31 to the second position. In this embodiment, the limiting member is the sealing body 5, so that in addition to being used to limit the movement of the valve plate 3 to the second position, the limiting member is also used to cooperate with the valve plate 3 to seal the water inlet 13, thereby realizing one structure with multiple uses. Specifically, the sealing body 5 can select a flexible structure, such as a silicone structure, which can be as Figure 2 As shown, it is sleeved and clamped on the opening of the water outlet chamber 11. When the valve shaft 2 moves downward, the valve plate 3 moves downward synchronously and separates from the sealing body 5, thereby opening the water inlet 13. When the valve shaft 2 moves upward, it drives the valve plate 3 to move upward synchronously and resist the sealing body 5, thereby closing the water inlet 13. It can be understood that the situations in which the sealing body 5 abuts against the valve disc 3 include the following two situations: first, the valve disc 3 moves to abut against the sealing body 5 and close the water inlet 13 only when the valve shaft 2 switches from the lower limit position to the upper limit position. In this case, the valve disc 3 is driven to move by the wall of the limiting recess 21 abutting against the limiting protrusion 31 during the upward movement of the valve shaft 2. Therefore, when the sealing body 5 abuts against the valve disc 3, the limiting protrusion 31 still maintains the first position abutting against the wall of the limiting recess 21; second, no matter whether the valve shaft 2 is located at the upper limit position, the lower limit position, or any position between the upper limit position and the lower limit position, the valve disc 3 can abut against the sealing body 5 under active human operation. At this time, if the valve shaft 2 is located at the upper limit position, the limiting protrusion 31 maintains the first position abutting against the wall of the limiting recess 21. If the valve shaft 2 is located at the lower limit position or at any position between the upper limit position and the lower limit position, although the valve disc 3 presses against the sealing body 5 under active human operation, due to the downward movement of the valve shaft 2, the limiting protrusion 31 is no longer located at the first position, but is located at a third position between the first position and the second position. In the third position, the valve disc 3 is still unable to move up to the second position under the limiting action of the sealing body 5, ensuring that the limiting protrusion 31 cannot separate from the limiting recess 21. This also ensures that if the valve disc 3 is to be removed from the valve shaft 2, it is necessary to first remove the sealing body 5 from the cover body 1 so that the sealing body 5 no longer restricts the valve disc 3. The valve disc 3 can be moved up to the point where the limiting protrusion 31 is located at the second position, and the limiting protrusion 31 can be switched to the installation channel 22, thereby further separating the valve disc 3 and the valve shaft 2.

[0055] As a preferred embodiment of the present application, as Figure 5 shown, the installation channels 22 and the limiting recesses 21 are arranged at intervals along the circumferential direction of the valve shaft 2, and the valve shaft 2 is provided with a communication channel 23 communicating the installation channels 22 and the limiting recesses 21. The communication channel 23 extends along the circumferential direction of the valve shaft 2. The valve plate 3 can rotate relative to the valve shaft 2 so that the limiting protrusion 31 switches between the installation channels 22 and the limiting recesses 21. Those skilled in the art can understand that the installation channels 22 and the limiting recesses 21 are arranged at intervals along the circumferential direction of the valve shaft 2 and are communicated through the communication channel 23, so that the valve plate 3 can rotate relative to the valve shaft 2, so that it can switch between the installation channels 22 and the limiting recesses 21 through the communication channel 23. When installing the valve plate 3, the limiting protrusion 31 is first made to enter the installation channel 22, and then the valve plate 3 is rotated relative to the valve shaft 2 at an appropriate position, so that the limiting protrusion 31 enters the limiting recess 21 through the communication channel 23, and the valve plate 3 is installed in place with the valve shaft 2. When disassembling the valve plate 3, the limiting protrusion 31 enters the installation channel 22 through the communication channel 23 at an appropriate position, and then the limiting protrusion 31 slides out through the installation channel 22 to disengage from the valve shaft 2, so that the valve plate 3 is separated from the valve shaft 2. Therefore, after the valve plate 3 is installed in place with the valve shaft 2, only by restricting the relative rotation between the valve plate 3 and the valve shaft 2 can the valve plate 3 be limited to work stably on the valve shaft 2, which is convenient for limiting. For example, taking the above-mentioned limiting protrusion 31 having a first position and a second position as an example, the communication channel 23 can be set at a position corresponding to the second position of the limiting protrusion 31, so that when the limiting protrusion 31 moves to the second position, the valve plate 3 can be rotated relative to the valve shaft 2, and the limiting protrusion 31 enters the installation channel 22 from the limiting recess 21 through the communication channel 23.

[0056] Furthermore, as Figure 5As shown, the limiting recess 21 extends along the axial direction of the valve shaft 2. One end of the limiting recess 21 in the extending direction is provided with a first stop wall 24 for abutting and limiting the limiting convex portion 31. The other end of the limiting recess 21 communicates with the communication channel 23. The limiting recess 21 and the installation channel 22 are spaced apart by a second stop wall 25. Specifically, to facilitate the installation of the valve plate 3, the installation channel 22 can also extend along the axial direction of the valve shaft 2, and the entrance of the installation channel 22 penetrates through the end of the valve shaft 2, so that the limiting convex portion 31 can enter the installation channel 22 from the end of the valve shaft 2. After the limiting convex portion 31 enters the installation channel 22, it moves along the axial direction of the valve shaft 2 towards the communication channel 23. When the limiting convex portion 31 moves to a position corresponding to the communication channel 23, the valve plate 3 is rotated to make the limiting convex portion 31 enter the limiting recess 21 through the communication channel 23. Finally, the limiting convex portion 31 can be limited at a position where it abuts against the first stop wall 24. At this time, the limiting convex portion 31 is simultaneously abutted and limited by the first stop wall 24 and the second stop wall 25, and then stably limited in the limiting recess 21, realizing the locking of the valve shaft 2 and the valve plate 3. Specifically, taking the foregoing limiting convex portion 31 having a first position and a second position as an example, in this solution, the position where the valve plate 3 rotates to make the limiting convex portion 31 just enter the limiting recess 21 through the communication channel 23 is the aforementioned second position. At this time, rotating the valve plate 3 in the reverse direction can make the limiting convex portion 31 enter the installation channel 22 through the communication channel 23, and the position where the limiting convex portion 31 moves along the axial direction of the valve shaft 2 to abut against the first stop wall 24 after entering the limiting recess 21 is the aforementioned first position. After installing the sealing body 5, when the valve plate 3 abuts against the sealing body 5, the sealing body 5 restricts the valve plate 3 from moving upward along the axial direction of the valve shaft 2, that is, restricts the limiting convex portion 31 from moving to the second position, thereby limiting the limiting convex portion 31 in the limiting recess 21. In this case, when the valve shaft 2 is at the lower limit position, the limiting convex portion 31 can be located at the first position where it abuts against the first stop wall 24, and at this time the valve plate 3 opens the water inlet; or the limiting convex portion 31 can be located at a third position between the first position and the second position, and at this time the valve plate 3 abuts against the sealing body 5.

[0057] Further, as Figure 2 and Figure 3As shown, a limiting elastic member 6 capable of elastic deformation along the axial direction of the valve shaft 2 is provided between the cover body 1 and the valve plate 3. One end of the limiting elastic member 6 abuts against the cover body 1, and the other end of the limiting elastic member 6 abuts against the valve plate 3, so as to abut the limiting convex portion 31 against the first stop wall 24. Under the elastic extrusion of the limiting elastic member 6, when there is no external force, the valve plate 3 can be stably resisted and limited by the limiting elastic member 6 at the position abutting against the first stop wall 24, that is, the first position described in the foregoing embodiment. The valve plate 3 will not move along the axial direction of the valve shaft 2 by itself to make the limiting convex portion 31 move towards the second position, realizing stable installation. Specifically, the limiting elastic member 6 can be selected as a spring. The spring is sleeved on the valve shaft 2, and the two ends respectively abut against the valve plate 3 and the cover body 1.

[0058] As a preferred embodiment of the present application, as Figure 5 and Figure 6 shown, an installation hole 32 is provided in the center of the valve plate 3. The valve plate 3 is detachably sleeved on the valve shaft 2 through the installation hole 32. Two symmetrically arranged limiting convex portions 31 are provided on the inner wall of the installation hole 32. Correspondingly, two limiting concave portions 21 and two installation channels 22 are also provided on both sides of the valve shaft 2. During installation, the two limiting convex portions 31 synchronously pass through the two installation channels 22 and enter the limiting concave portions 21, realizing double limitation of the valve shaft 2 and the valve plate 3 and improving the reliability of limitation.

[0059] As a preferred embodiment of the present application, as Figure 2 and Figure 7 shown, the cover body 1 is provided with a sleeve 14 that penetrates the water outlet cavity 11 and extends upward. The valve shaft 2 is disposed in the sleeve 14 and can axially move in the vertical direction along the sleeve 14. The valve plate 3 is connected to the lower end of the valve shaft 2. By limiting the valve shaft 2 in the sleeve 14, the sleeve 14 can guide the axial movement of the valve shaft 2 and prevent the valve shaft 2 from radially offsetting to cause the valve plate 3 to be misaligned with the water inlet 13.

[0060] As a preferred embodiment, as Figure 2 shown, a sealing member 7 is sleeved on the valve shaft 2. The sealing member 7 forms a seal between the valve shaft 2 and the sleeve 14, so as to prevent the water outlet cavity 11 from leaking outward through the sleeve 14 through the sealing effect of the sealing member 7.

[0061] As a preferred embodiment, as Figure 2 and Figure 3As shown, the upper end of the valve shaft 2 extends out of the sleeve 14 and is provided with a gland 8. A return spring 9 is sleeved outside the sleeve 14. One end of the return spring 9 abuts against the gland 8, and the other end of the return spring 9 abuts against the cover body 1. The return spring 9 can drive the valve shaft 2 to reset from the lower limit position to the upper limit position. Specifically, when the valve shaft 2 is pressed downward, the valve shaft 2 vertically moves downward from the upper limit position toward the lower limit position, causing the valve plate 3 to move downward synchronously to open the water inlet 13 of the water outlet cavity 11. At this time, the return spring 9 is compressed by the gland 8. When the pressure acting on the valve shaft 2 disappears, the return spring 9 drives the gland 8 to move upward and reset toward the upper limit position, thereby causing the valve shaft 2 to drive the valve plate 3 to move upward synchronously until the valve plate 3 resets to the position where it abuts against the sealing body 5 to close the water inlet 13. Further preferably, as Figures 1 to 4 shown, a button 10 that can automatically rotate and reset can be installed on the cover body 1. A part of the button 10 extends out of the thermos flask cover and serves as the force application position for the user to press. When the button 10 is pressed downward, the button 10 flips downward and presses the valve shaft 2 downward. When the pressure acting on the button 10 disappears, the button 10 automatically resets upward, so that the pressure exerted by the button 10 on the valve shaft 2 disappears.

[0062] What is not described in this application can be realized by adopting or referring to the existing technology.

[0063] Each embodiment in this specification is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other. The key points of each embodiment are the differences from other embodiments.

[0064] The above are only the embodiments of this application and are not used to limit this application. For those skilled in the art, various changes and modifications can be made to this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the scope of the claims of this application.

Claims

1. A heat-insulating kettle lid, comprising a lid body, wherein the lid body is provided with a water outlet cavity, the water outlet cavity has a water outlet communicating with the spout of the heat-insulating kettle and a water inlet communicating with the inner cavity of the kettle body of the heat-insulating kettle, and is characterized in that, The heat-insulating kettle lid further includes a water outlet valve assembly, and the water outlet valve assembly includes: A valve shaft, axially movably installed on the lid body; the valve shaft is provided with a limiting recess and an installation channel communicating with the limiting recess, and the installation channel includes an inlet communicating with the outside; A valve piece, detachably connected to the valve shaft, and movable with the valve shaft to open or close the water inlet; Wherein, the valve piece is provided with a limiting convex portion, the limiting convex portion can slide into the limiting recess from the inlet through the installation channel, and the limiting convex portion can be abutted and limited by the wall of the limiting recess, so that the valve piece is detachably connected to the valve shaft.

2. The heat-insulating kettle lid according to claim 1, wherein The limiting convex portion has a first position abutting against the wall of the limiting recess and a second position that can move into the installation channel; The lid body is provided with a detachable limiting member, and when the limiting member is installed on the lid body, it can abut against the valve piece to limit the movement of the limiting convex portion from the first position to the second position.

3. The heat-insulating kettle lid according to claim 2, wherein The limiting member is configured to be detachably installed on the sealing body at the water inlet, and when the sealing body abuts against the valve piece, the valve piece closes the water inlet; Wherein, the limiting convex portion further has a third position, the third position is located between the first position and the second position, and when the limiting convex portion is located at the third position, the sealing body abuts against the valve piece to limit the movement of the limiting convex portion to the second position.

4. The heat-insulating kettle lid according to claim 1, wherein The installation channel and the limiting recess are arranged at intervals along the circumferential direction of the valve shaft, and the valve shaft is provided with a communication channel communicating the installation channel and the limiting recess, the communication channel extends along the circumferential direction of the valve shaft, and the valve piece can rotate relative to the valve shaft so that the limiting convex portion switches between the installation channel and the limiting recess.

5. The heat-insulating kettle lid according to claim 4, wherein The limiting recess extends along the axial direction of the valve shaft, one end of the limiting recess in the extending direction is provided with a first stop wall for abutting and limiting the limiting convex portion, and the other end of the limiting recess communicates with the communication channel; the limiting recess is separated from the installation channel by a second stop wall.

6. The heat-insulating kettle lid according to claim 5, wherein A limiting elastic member that can elastically deform axially along the valve shaft is provided between the lid body and the valve piece, one end of the limiting elastic member abuts against the lid body, and the other end of the limiting elastic member abuts against the valve piece to abut the limiting convex portion against the first stop wall.

7. The heat-insulating kettle lid according to claim 1, wherein An installation hole is provided in the center of the valve piece, and the valve piece is detachably sleeved on the valve shaft through the installation hole, and two symmetrically arranged limiting convex portions are provided on the inner wall of the installation hole.

8. The heat-insulating kettle lid according to any one of claims 1-7, wherein The lid body is provided with a sleeve that penetrates through the water outlet cavity and extends upward. The valve shaft is disposed within the sleeve and can axially move in the vertical direction along the sleeve. The valve plate is connected to the lower end of the valve shaft.

9. The thermos flask lid according to claim 8, wherein a seal is sleeved on the valve shaft, and the seal forms a seal between the valve shaft and the sleeve.

10. The thermos flask lid according to claim 8, wherein the valve shaft has an upper limit position and a lower limit position the upper end of the valve shaft extends out of the sleeve and is provided with a gland. A return spring is sleeved outside the sleeve. One end of the return spring abuts against the gland, and the other end of the return spring abuts against the lid body. The return spring can drive the valve shaft to reset from the lower limit position to the upper limit position.

Images