Spraying structure and health preserving pot

Abstract

The invention belongs to the technical field of water boiling electric appliances, and particularly relates to a spraying structure and a health preserving pot, the spraying structure comprises a liquid collecting shell, a storage bin, a water pipe and a valve element, the liquid collecting shell is arranged in liquid, a liquid inlet communicated with the interior of the liquid collecting shell is formed in the bottom of the liquid collecting shell, and the storage bin is arranged above the liquid collecting shell and used for containing a brewing object; the top of the water pipe penetrates through the bottom of the storage bin and extends upwards into the storage bin, the bottom of the water pipe is communicated with the liquid collecting shell, the valve element is movably arranged at the liquid inlet and located in the liquid collecting shell, and the valve element has an opening position for opening the liquid inlet and a closing position for closing the liquid inlet. Spraying is completed by directly using natural energy of liquid boiling, energy consumption can be saved, the use cost can be reduced, use by a user is facilitated, the boiling liquid makes full contact with a brewed object, the brewing efficiency and quality can be improved, and the taste of tea soup is more uniform.

Description

Technical Field

[0001] The present invention belongs to the technical field of water-boiling appliances, and particularly relates to a spraying structure and a health-preserving kettle. Background Art

[0002] In recent years, with the remarkable improvement of the national living standard and the wide popularization of the concept of health preservation, the health-preserving kettle with both functionality and convenience has become an indispensable kitchen appliance in modern families. To meet the brewing needs of consumers, the existing health-preserving kettle products generally adopt a spraying type tea-brewing structure. The structure of the existing spraying structure on the health-preserving kettle mainly includes a storage bin for placing tea leaves and the like and a circulation pump. The storage bin is placed at the kettle mouth, and the circulation pump sprays the hot water in the kettle into the storage bin through a water pipe to realize the spraying of brewing materials. However, this way of relying on the circulation pump to maintain the liquid circulation has problems of high energy consumption, high production and maintenance costs. Summary of the Invention

[0003] The purpose of the present invention is to provide a spraying structure and a health-preserving kettle that can solve the above problems.

[0004] To achieve the above purpose, a spraying structure provided by an embodiment of the present invention includes:

[0005] A liquid collecting shell, placed in the liquid, and its bottom is provided with a liquid inlet communicating with its interior;

[0006] A storage bin, arranged above the liquid collecting shell, for placing brewing materials;

[0007] A water pipe, its top penetrates through the bottom of the storage bin and extends upward into the interior of the storage bin, and its bottom is communicated with the liquid collecting shell; and

[0008] A valve core, movably arranged at the liquid inlet and located inside the liquid collecting shell. The valve core has an open position for opening the liquid inlet and a closed position for closing the liquid inlet;

[0009] The valve core is configured to be pushed from the closed position to the open position by the boiling liquid, so that the liquid can flow into the liquid collecting shell from the liquid inlet and be sprayed into the storage bin through the water pipe, and can be reset from the open position to the closed position under the action of gravity.

[0010] Optionally, the boiling liquid can push the valve core to move upward along the axis of the liquid inlet to the open position;

[0011] The valve core can move downward along the axis of the liquid inlet to the closed position under the action of gravity.

[0012] Optionally, a guiding wall surrounding the liquid inlet and coaxial with the liquid inlet is provided on the inner bottom wall of the liquid collecting shell. The guiding wall is arranged inside the liquid collecting shell, and the valve core is in clearance fit with the inner wall of the guiding wall;

[0013] A plurality of through holes are circumferentially formed on the side wall of the guiding wall. When the valve core moves upward, the through holes communicate with the liquid inlet.

[0014] Optionally, an elastic member is further included. The valve core is stressed by the elastic member, and the elastic member is used to drive the valve core to move downward.

[0015] Optionally, a top plate is arranged below the liquid collecting shell, and the valve core is connected to the top plate;

[0016] The elastic member is a compression spring, and its upper and lower ends are respectively abutted against the bottom of the liquid collecting shell and the top plate. The boiling liquid drives the valve core to move upward by pushing the top plate.

[0017] Optionally, the cross section of the top plate is arc-shaped and the inner arc surface faces downward.

[0018] Optionally, the elastic member is arranged inside the liquid collecting shell. The elastic member is a compression spring, and its upper and lower ends are respectively abutted against the inner wall of the liquid collecting shell and the top of the valve core.

[0019] Optionally, connecting walls are arranged on the inner bottom wall of the liquid collecting shell, and at least two connecting walls are symmetrically arranged around the axis of the liquid inlet;

[0020] A guiding port is axially formed on the connecting wall along the axis of the liquid inlet. A connecting portion extending into the guiding port and in sliding fit with it is arranged on the valve core.

[0021] Optionally, the boiling liquid can push the valve core to turn upward around an axis perpendicular to the axis of the liquid inlet to the open position;

[0022] Under the action of gravity, the valve core can turn downward around this axis to the closed position.

[0023] Optionally, a swing arm is arranged on the valve core. A shaft portion perpendicular to the axis of the liquid inlet is arranged on the swing arm. The axis is the axis of the shaft portion, and an installation wall rotatably connected to the shaft portion is arranged inside the liquid collecting shell;

[0024] A limiting wall is arranged on the installation wall. When the valve core turns upward around the axis of the shaft portion to the open position, the swing arm abuts against the limiting wall.

[0025] Optionally, the rotation angle of the swing arm is 15 to 30 degrees.

[0026] Optionally, the bottom of the liquid collecting shell is recessed towards the inside of the liquid collecting shell to form a recessed portion. The cross-section of the recessed portion is arc-shaped, and the liquid inlet is arranged in the middle of the recessed portion.

[0027] Optionally, a spray head communicated with the water pipe is arranged at the top of the water pipe. The cross-sectional area of the spray head gradually increases upward along the axis, so that the side wall of the spray head inclines downward, and liquid spraying holes are arranged on the side wall of the spray head.

[0028] Optionally, the valve core includes a valve body and a first sealing ring. A clamping groove corresponding to and clamped with the peripheral edge of the valve body is arranged on the inner side surface of the first sealing ring. The bottom of the first sealing ring can abut against the upper edge of the liquid inlet to close the liquid inlet.

[0029] The present invention also provides a health preservation kettle, including:

[0030] A kettle body having a cavity for containing liquid. A kettle mouth communicated with the cavity is arranged at the top of the kettle body, and a connecting seat is arranged at the kettle mouth. The connecting seat is hollow; and

[0031] The spray structure as described above is installed in the cavity;

[0032] A brim is arranged on the upper peripheral edge of the storage bin. A second sealing ring is sleeved on the outer side of the brim. An annular support wall corresponding to the brim is arranged on the inner side wall of the connecting seat. The second sealing ring abuts against the annular support wall and abuts against the inner side wall of the connecting seat;

[0033] A gap is formed between the bottom of the liquid collecting shell and the inner bottom wall of the kettle body;

[0034] A plurality of sieve holes communicated with the cavity are arranged at the bottom of the storage bin.

[0035] Compared with the prior art, the beneficial effects of the present invention are as follows: The impact force generated by the rolling of the liquid pushes the valve core, so that it moves from the closed position to the open position, and the boiling liquid flows into the liquid collecting shell from the liquid inlet. When the liquid collecting shell is filled with liquid, it will rise to the storage bin to brew the brewing material. By making the boiling liquid fully contact with the brewing material, the brewing efficiency and quality can be improved, the taste of the tea soup is more uniform, and the spray structure directly utilizes the natural energy of liquid boiling to complete spraying, which can save energy consumption, reduce the use cost, facilitate the user to use, and improve the user experience. Description of the Drawings

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0037] Figure 1 It is the top view of the health-preserving kettle of the present invention.

[0038] Figure 2 It is the sectional view along Figure 1 the A-A line in

[0039] Figure 3 It is the sectional view of the first embodiment of the spraying structure of the present invention.

[0040] Figure 4 It is the sectional view of the second embodiment of the spraying structure of the present invention.

[0041] Figure 5 It is the sectional view of the third embodiment of the spraying structure of the present invention.

[0042] Figure 6 It is the sectional view of the fourth embodiment of the spraying structure of the present invention.

[0043] Figure 7 It is the exploded schematic view of the valve core in the present invention.

[0044] Figure 8 It is the three-dimensional view of the kettle body in the present invention.

[0045] Figure 9 It is the local enlarged view of the A area as shown in Figure 2

[0046] In the figure:

[0047] 100, kettle body; 110, cavity; 120, kettle mouth; 130, connecting seat; 131, annular support wall;

[0048] 200, spraying structure;

[0049] 210, liquid collecting shell; 211, liquid inlet; 212, guiding wall; 213, through hole; 214, mounting wall; 215, limiting wall; 216, recessed part; 217, first annular wall; 218, annular positioning wall;

[0050] 220, storage bin; 221, brim; 222, second sealing ring; 223, sieve holes;

[0051] 230, water pipe; 231, spray head; 232, liquid spraying holes; ​

[0052] 240, spool valve; 241, valve body; 2411, connecting column; 242, first sealing ring; 2421, clamping groove; 243, connecting portion; 244, swing arm; 245, shaft portion;

[0053] 250, elastic member;

[0054] 260, top plate; 261, second annular wall;

[0055] 270, connecting wall; 271, guiding port;

[0056] 300, heating device;

[0057] 400, kettle lid. Detailed implementation manners

[0058] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the embodiments of the present invention, and should not be construed as a limitation on the present invention.

[0059] In the description of the embodiments of the present invention, it should be understood that if there are directional indications involved in the embodiments of the present invention, such as the orientation or positional relationships indicated by up, down, left, right, front, back, inside, outside, etc., are based on the orientation or positional relationships shown in the accompanying drawings. It is only for the convenience of describing the embodiments of the present invention 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, and therefore should not be construed as a limitation on the present invention.

[0060] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0061] In the embodiments of the present invention, unless otherwise clearly specified and limited, if there are terms such as "installation", "connection", "connection", "fixation", etc., they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside 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 embodiments of the present invention can be understood according to specific circumstances.

[0062] AsFigures 1 to 9 As shown in the figure, in an embodiment of the present invention, a health care kettle is provided, which includes a kettle body 100 and a spraying structure 200. The kettle body 100 has a cavity 110 for containing liquid, and the spraying structure 200 is installed in the cavity 110.

[0063] Among them, a kettle mouth 120 communicating with the cavity 110 is provided at the top of the kettle body 100. A connecting seat 130 is arranged at the kettle mouth 120. The connecting seat 130 is hollow. A brim 221 is arranged on the upper peripheral edge of the storage bin 220. A second sealing ring 222 is sleeved on the outer side of the brim 221. An annular support wall 131 corresponding to the brim 221 is arranged on the inner side wall of the connecting seat 130. The second sealing ring 222 abuts against the annular support wall 131 and abuts against the inner side wall of the connecting seat 130. A gap is formed between the bottom of the liquid collecting shell 210 and the inner bottom wall of the kettle body 100. That is, the spraying structure 200 is suspended in the cavity 110 through the connecting seat 130. With the soft cooperation between the second sealing ring 222 and the connecting seat 130, the noise generated by the spraying structure 200 can be reduced to improve the user experience.

[0064] The spraying structure 200 includes a liquid collecting shell 210, a storage bin 220, a water pipe 230 and a valve core 240. Among them, the liquid collecting shell 210 is placed in the liquid. Specifically, the liquid collecting shell 210 is placed in the liquid in the cavity 110. The liquid is preferably water. A liquid inlet 211 communicating with its interior is provided at the bottom of the liquid collecting shell 210.

[0065] Among them, the storage bin 220 is arranged above the liquid collecting shell 210 and is used for placing brewing materials such as tea leaves. It should be noted that a space is formed between the bottom of the storage bin 220 and the liquid in the cavity 110 to prevent the liquid from flowing into the storage bin 220 and affecting the use.

[0066] The top of the water pipe 230 penetrates through the bottom of the storage bin 220 and extends upward into the interior of the storage bin 220. The bottom is communicated with the liquid collecting shell 210 to communicate the liquid collecting shell 210 with the storage bin 220. Specifically, a connection hole (not shown in the figure) communicating with the interior is arranged in the middle of the top of the liquid collecting shell 210. The bottom of the water pipe 230 is stuck at the connection hole. Of course, the two can also be threadedly connected, etc., as long as they can be fixed.

[0067] The valve core 240 is movably arranged at the liquid inlet 211 and is located inside the liquid collecting shell 210. The valve core 240 has an open position for opening the liquid inlet 211 and a closed position for closing the liquid inlet 211. Among them, the valve core 240 is configured to be pushed from the closed position to the open position by the boiling liquid, so that the liquid can flow into the liquid collecting shell 210 from the liquid inlet 211 and be sprayed into the storage bin 220 through the water pipe 230, and can be reset from the open position to the closed position under the action of gravity to close the liquid inlet 211.

[0068] It should be noted that a heating device 300 for heating the liquid in the cavity 110 is further provided at the bottom of the kettle, and a kettle lid 400 is covered at the kettle mouth 120. Both the heating device 300 and the kettle lid 400 are prior arts and will not be elaborated here one by one. Further, a plurality of sieve holes 223 communicating with the cavity 110 are provided at the bottom of the storage bin 220. When the heating device 300 heats the liquid to boiling, the liquid will roll to generate an impact force to push the valve core 240, so that it moves from the closed position to the open position. The boiling liquid will flow into the liquid collecting shell 210 from the liquid inlet 211. When the liquid collecting shell 210 is filled with liquid, it will rise to the storage bin 220 through the water pipe 230 to brew the brewing material. Further, it flows into the cavity 110 from the sieve holes 223 and is mixed with the liquid in the cavity 110 for the user to drink. That is, by fully contacting the boiling liquid with the brewing material, the brewing efficiency and quality are improved, and the taste of the tea soup is made more uniform. And the spraying structure 200 directly utilizes the natural energy of the boiling liquid to complete spraying, which can save energy consumption, reduce the use cost, facilitate the user to use, and improve the user experience.

[0069] As Figures 3 to 6 shown, the bottom of the liquid collecting shell 210 is recessed towards the inside of the liquid collecting shell 210 to form a recessed part 216. The cross-section of the recessed part 216 is arc-shaped. The liquid inlet 211 is provided in the middle of the recessed part 216. The recessed part 216 can guide the liquid to flow centrally towards the liquid inlet 211, improve the liquid inlet efficiency, and can improve the structural stability of the liquid collecting shell 210, and can disperse the direction of the liquid acting force inside the liquid collecting shell 210 to ensure the stability of the opening and closing of the valve core 240.

[0070] As Figure 2 and 3 shown, a spray head 231 communicating with it is provided at the top of the water pipe 230. The cross-sectional area of the spray head 231 gradually increases axially upwards to form a conical structure, so that the side wall of the spray head 231 inclines downwards. Spray holes 232 are provided on the side wall of the spray head 231. The inclined side wall makes the liquid spraying range wider, covering the brewing material in the storage bin 220. It should be noted that the spray head 231 and the water pipe 230 are fixed by welding or threaded connection.

[0071] As Figures 3 to 7 shown, the valve core 240 includes a valve body 241 and a first sealing ring 242. Among them, a clamping groove 2421 corresponding to and clamped with the periphery of the valve body 241 is provided on the inner side surface of the first sealing ring 242. The design of the clamping groove 2421 ensures the firm installation of the first sealing ring 242 and prevents it from falling off. Further, the bottom of the first sealing ring 242 can abut against the upper edge of the liquid inlet 211 to seal the liquid inlet 211 and ensure the sealing effect.

[0072] AsFigures 1 to 3 The first embodiment of the spray structure 200 of the present invention is shown. In this embodiment, the boiling liquid can push the valve core 240 to move upward along the axial direction of the liquid inlet 211 to the open position. Under the action of gravity, the valve core 240 can move downward along the axial direction of the liquid inlet 211 to the closed position, that is, the valve core 240 opens and closes the liquid inlet 211 by moving up and down.

[0073] Specifically, as Figure 3 and 4 shown, a guiding wall 212 surrounding the liquid inlet 211 and coaxial with the liquid inlet 211 is provided on the inner bottom wall of the liquid collecting shell 210. The guiding wall 212 is arranged inside the liquid collecting shell 210. The valve core 240 is in clearance fit with the inner wall of the guiding wall 212. A plurality of through holes 213 are circumferentially formed on the side wall of the guiding wall 212. When the valve core 240 moves upward, the through holes 213 communicate with the liquid inlet 211. The space formed by the guiding wall 212 ensures the stability of the movement of the valve core 240 and avoids situations such as deviation. The setting of the through holes 213 enables the boiling liquid to enter the liquid collecting shell 210 from the liquid inlet 211.

[0074] As Figure 2 、 3 and shown in 4, the spray structure 200 in this embodiment is further provided with an elastic member 250. Among them, the valve core 240 is stressed by the elastic member 250. The elastic member 250 is used to drive the valve core 240 to move downward, that is, the elastic member 250 is used to assist the valve core 240 to quickly close the liquid inlet 211, prevent the liquid in the liquid collecting shell 210 from flowing back, and can improve the stability and efficiency of the valve core 240 closing the liquid inlet 211.

[0075] As Figure 2 and 3 shown, a top plate 260 is provided below the liquid collecting shell 210 in this embodiment. Among them, the valve core 240 is connected to the top plate 260. Specifically, a connecting column 2411 extending downward is provided in the middle of the bottom of the valve core 240 in this embodiment. Further, the elastic member 250 is a compression spring, and its upper and lower ends are respectively abutted against the bottom of the liquid collecting shell 210 and the top plate 260. Specifically, a first annular wall 217 extending downward is provided on the lower peripheral edge of the liquid inlet 211. The upper end of the compression spring is sleeved on the first annular wall 217. A second annular wall 261 corresponding to the first annular wall 217 is provided on the top of the top plate 260. The lower end of the compression spring extends into the second annular wall 261 and abuts against the top plate 260 to ensure the stability of the installation of the compression spring. The connecting column 2411 passes through the compression spring and is threadedly connected or fixedly connected to the middle of the top plate 260 by screws.

[0076] Further, the boiling liquid drives the valve core 240 to move upward by pushing the top plate 260. Further, the cross-section of the top plate 260 is arc-shaped and the inner arc surface faces downward to improve the structural stability thereof, and enable it to be stressed centrally, reduce the loss of impact force generated during liquid boiling, and improve work efficiency.

[0077] As Figure 4 Shown is the second embodiment of the spray structure 200 of the present invention. In this embodiment, the boiling liquid can push the valve core 240 to move upward along the axial direction of the liquid inlet 211 to the open position. Under the action of gravity, the valve core 240 can move downward along the axial direction of the liquid inlet 211 to the closed position, that is, the valve core 240 opens and closes the liquid inlet 211 by moving up and down.

[0078] In some specific embodiments, a guiding wall 212 surrounding the liquid inlet 211 and coaxial with the liquid inlet 211 is provided on the inner bottom wall of the liquid collecting shell 210. The guiding wall 212 is arranged inside the liquid collecting shell 210, and the valve core 240 is in clearance fit with the inner wall of the guiding wall 212. A plurality of through holes 213 are circumferentially formed on the side wall of the guiding wall 212. When the valve core 240 moves upward, the through holes 213 communicate with the liquid inlet 211. The space formed by the guiding wall 212 ensures the stability of the movement of the valve core 240 and avoids situations such as deviation thereof. The setting of the through holes 213 enables the boiling liquid to enter the liquid collecting shell 210 from the liquid inlet 211.

[0079] The spray structure 200 in this embodiment is further provided with an elastic member 250. The valve core 240 is stressed by the elastic member 250. The elastic member 250 is used to drive the valve core 240 to move downward, and the elastic member 250 is used to assist the valve core 240 to quickly close the liquid inlet 211, prevent the liquid in the liquid collecting shell 210 from flowing back, and improve the stability and efficiency of the valve core 240 in closing the liquid inlet 211.

[0080] As Figure 4As shown in the figure, the elastic member 250 in this embodiment is disposed inside the liquid collecting housing 210. The elastic member 250 is a compression spring, and its upper and lower ends are respectively abutted against the inner wall of the liquid collecting housing 210 and the top of the valve core 240. The overall structure of the spray structure 200 in this embodiment is simpler, which can save the occupied space of the spray structure 200 and reduce the production cost. It should be noted that annular positioning walls 218 corresponding to the compression spring are provided on the inner wall of the liquid collecting housing 210 and the top of the valve body 241. The two annular positioning walls 218 are coaxially arranged with the valve core 240, and they are arranged opposite to each other up and down. The upper and lower ends of the compression spring respectively extend into the corresponding annular positioning walls 218 for limiting. Of course, other limiting structures can also be provided to limit the two ends of the compression spring, as long as the upper and lower ends of the compression spring are respectively limited to the inner wall of the liquid collecting housing 210 and the top of the valve core 240, so that the valve core 240 can be subjected to the downward pressure of the compression spring.

[0081] As Figure 5 shown in the third embodiment of the spray structure 200 of the present invention, in this embodiment, the boiling liquid can push the valve core 240 to move upward along the axial direction of the liquid inlet 211 to the open position. Under the action of gravity, the valve core 240 can move downward along the axial direction of the liquid inlet 211 to the closed position, that is, the valve core 240 opens and closes the liquid inlet 211 by moving up and down.

[0082] In some specific embodiments, a connecting wall 270 is provided on the inner bottom wall of the liquid collecting housing 210. The connecting wall 270 is symmetrically arranged around the axial direction of the liquid inlet 211 with at least two, specifically, two connecting walls 270 are preferably provided in this embodiment.

[0083] A guiding opening 271 is axially formed on the connecting wall 270 along the liquid inlet 211. A connecting portion 243 which extends into the guiding opening 271 and is slidably engaged with it is provided on the valve core 240. Specifically, the shape of the connecting portion 243 is preferably cylindrical to improve the smoothness of its movement and reduce resistance. Of course, in some embodiments, other shapes can also be shown, as long as it can move up and down in the guiding opening 271.

[0084] As Figure 6 shown in the fourth embodiment of the spray structure 200 of the present invention, in this embodiment, the boiling liquid can push the valve core 240 to turn upward around an axis perpendicular to the axial direction of the liquid inlet 211 to the open position. Under the action of gravity, the valve core 240 can turn downward around this axis to the closed position.

[0085] In some specific embodiments, such as Figure 6As shown, a swing arm 244 is provided on the valve core 240, and a shaft portion 245 perpendicular to the axial direction of the liquid inlet 211 is provided on the swing arm 244. It should be noted that the axis is the axis of the shaft portion 245. Further, an installation wall 214 rotatably connected to the shaft portion 245 is provided inside the liquid collecting shell 210, and a limiting wall 215 is provided on the installation wall 214. When the valve core 240 rotates upward around the axis of the shaft portion 245 to the open position, the swing arm 244 abuts against the limiting wall 215, thereby limiting the rotation angle of the valve core 240 and ensuring the working efficiency. Specifically, the rotation angle of the swing arm 244 is 15 to 30 degrees.

[0086] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A spray structure, characterized in that: include: A liquid collecting shell (210) is placed in the liquid and has a liquid inlet (211) at its bottom that communicates with the interior thereof; A storage bin (220), arranged above the liquid collecting shell (210), for storing brewing materials; a water pipe (230), the top of which passes through the bottom of the storage bin (220) and extends upward to the interior of the storage bin (220), and the bottom of which is in communication with the liquid collecting shell (210); and a valve core (240) movably arranged at the liquid inlet (211) and located inside the liquid collecting shell (210), the valve core (240) having an open position for opening the liquid inlet (211) and a closed position for closing the liquid inlet (211); The valve core (240) is configured to be pushed from a closed position to an open position by the boiling liquid, so that the liquid can flow from the liquid inlet (211) into the liquid collecting shell (210) and be sprayed into the storage bin (220) through the water pipe (230), and can be reset from the open position to the closed position under the action of gravity.

2. A spray structure according to claim 1, characterized in that: The boiling liquid can push the valve core (240) to move upward along the axial direction of the liquid inlet (211) to the open position; The valve core (240) can move downward along the axial direction of the liquid inlet (211) to the closed position under the action of gravity.

3. A spray structure according to claim 2, characterized in that: A guide wall (212) is provided on the inner bottom wall of the liquid collecting shell (210) and surrounds the liquid inlet (211) and is coaxial with the liquid inlet (211); the guide wall (212) is arranged inside the liquid collecting shell (210); and the valve core (240) is clearance-matched with the inner wall of the guide wall (212); A plurality of through holes (213) are provided on the side wall of the guide wall (212) along the circumferential direction, and when the valve core (240) moves upward, the through holes (213) are communicated with the liquid inlet (211).

4. A spray structure according to claim 3, characterized in that: Also includes: An elastic member (250), the valve core (240) is subjected to force from the elastic member (250), and the elastic member (250) is used to drive the valve core (240) to move downward.

5. A spray structure according to claim 4, characterized in that: A top plate (260) is disposed below the liquid collecting shell (210), and the valve core (240) is connected to the top plate (260); The elastic member (250) is a pressure spring, and its upper and lower ends are respectively in contact with the bottom of the liquid collecting shell (210) and the top plate (260). The boiling liquid pushes the top plate (260) to drive the valve core (240) to move upward.

6. A spray structure according to claim 5, characterized in that: The cross section of the top plate (260) is arranged in an arc shape, with the inner arc surface facing downward.

7. A spray structure according to claim 4, characterized in that: The elastic member (250) is arranged inside the liquid collecting shell (210). The elastic member (250) is a pressure spring, and its upper and lower ends are respectively in contact with the inner wall of the liquid collecting shell (210) and the top of the valve core (240).

8. A spray structure according to claim 2, characterized in that: A connecting wall (270) is provided on the inner bottom wall of the liquid collecting shell (210), and at least two connecting walls (270) are symmetrically arranged around the axial direction of the liquid inlet (211); A guide opening (271) is provided on the connecting wall (270) along the axial direction of the liquid inlet (211), and a connecting portion (243) is provided on the valve core (240) which extends into the guide opening (271) and is slidably matched with the guide opening (271).

9. A spray structure according to claim 1, characterized in that: The boiling liquid can push the valve core (240) to flip upward around an axis perpendicular to the axial direction of the liquid inlet (211) to the open position; The valve core (240) can be turned downward around the axis to the closed position under the action of gravity.

10. A spray structure according to claim 9, characterized in that: The valve core (240) is provided with a swing arm (244), the swing arm (244) is provided with a shaft portion (245) which is perpendicular to the axial direction of the liquid inlet (211), the axis is the axis of the shaft portion (245), and the interior of the liquid collecting housing (210) is provided with a mounting wall (214) which is rotatably connected to the shaft portion (245); A limiting wall (215) is provided on the installation wall (214), and when the valve core (240) is turned upward around the axis of the shaft portion (245) to the open position, the swing arm (244) abuts against the limiting wall (215).

11. A spray structure according to claim 10, characterized in that: The swing arm (244) has a rotation angle of 15 to 30 degrees.

12. A spray structure according to any one of claims 1 to 11, characterized in that: The bottom of the liquid collecting shell (210) is recessed toward the inside of the liquid collecting shell (210) to form a recessed portion (216). The cross section of the recessed portion (216) is in an arc shape. The liquid inlet (211) is arranged in the middle of the recessed portion (216).

13. A spray structure according to any one of claims 1 to 11, characterized in that: A nozzle (231) is provided at the top of the water pipe (230) and is in communication with the water pipe. The cross-sectional area of ​​the nozzle (231) gradually increases axially upward, so that the side wall of the nozzle (231) is inclined downward. A liquid spraying hole (232) is provided on the side wall of the nozzle (231).

14. A spray structure according to any one of claims 1 to 11, characterized in that: The valve core (240) includes a valve body (241) and a first sealing ring (242); the inner side surface of the first sealing ring (242) is provided with a clamping groove (2421) corresponding to and clamped with the periphery of the valve body (241); the bottom of the first sealing ring (242) can abut against the upper edge of the liquid inlet (211) to close the liquid inlet (211).

15. A health-preserving pot, characterized in that: include: A kettle body (100) having a cavity (110) for containing liquid, a kettle mouth (120) communicating with the cavity (110) being provided at the top of the kettle body (100), a connecting seat (130) being provided at the kettle mouth (120), and the connecting seat (130) being hollow; and The spray structure according to any one of claims 1 to 14, installed in the cavity (110); A brim (221) is arranged on the upper edge of the storage bin (220), a second sealing ring (222) is sleeved on the outer side of the brim (221), an annular support wall (131) corresponding to the brim (221) is arranged on the inner side wall of the connecting seat (130), the second sealing ring (222) abuts against the annular support wall (131) and abuts against the inner side wall of the connecting seat (130); A gap is formed between the bottom of the liquid collecting shell (210) and the inner bottom wall of the kettle body (100); The bottom of the storage bin (220) is provided with a plurality of sieve holes (223) communicating with the containing cavity (110).

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