Kettle plug and heat preservation kettle

Abstract

The utility model discloses a kettle plug and a thermos kettle, and relates to the technical field of thermos kettles.The kettle plug comprises a body, an upper cover, a knob, a lower cover and a transmission assembly, a water flow channel is formed in the body, and the upper cover moves up and down in the axis direction of the body so as to open / close an upper opening of the body; the lower cover moves up and down along the axis direction of the body so as to open / close the lower opening of the body; the upper end of the transmission assembly penetrates through the upper cover and is connected with the rotary knob, so that the upper cover and the lower cover move up and down in the axis direction of the body. According to the technical scheme, the knob is rotated, so that the upper opening and the lower opening of the water flow channel can be closed at the same time, communication between the water flow channel and the interior of the heat preservation kettle is reduced, impurities in the water flow channel are prevented from entering the heat preservation kettle, and the heat preservation kettle is prevented from being damaged. The problem that water in the heat preservation kettle is prone to being polluted when flowing through the water flow channel is solved on the whole.

Description

Technical Field

[0001] This utility model relates to the field of thermos flask technology, and in particular to a flask stopper and a thermos flask. Background Technology

[0002] A typical thermos flask consists of a body and a stopper. The stopper has a water flow channel running through it, with a cap at the bottom. When water needs to be poured, the cap opens, allowing water to flow from the thermos into the stopper and out through the water flow channel. When water is not needed, the cap closes, preventing water from flowing into the stopper. The stopper often uses a button or toggle to control the opening and closing of the cap. When not in use, the lower end of the water flow channel is sealed by the cap, while the upper end remains exposed. This makes it easy for foreign objects to enter the water flow channel and for bacteria to grow inside, leading to contamination of the water as it flows through. Utility Model Content

[0003] The main purpose of this invention is to provide a stopper and a thermos, which aims to improve the problem of water in the thermos being easily contaminated when flowing through the water channel.

[0004] To achieve the above objectives, the kettle stopper proposed in this utility model includes:

[0005] The body has a water flow channel formed within it, with an upper opening at the top and a lower opening at the bottom.

[0006] The top cover is located on the upper part of the body and moves up and down along the axis of the body to open / close the upper opening of the body;

[0007] The knob is located above the upper cover;

[0008] A lower cover, located at the lower part of the body, moves up and down along the axial direction of the body to open / close the lower opening of the body; and,

[0009] A transmission assembly, the upper end of which passes through the upper cover and is connected to the knob, causes the upper cover and the lower cover to move up and down along the axis of the body as the knob rotates.

[0010] In one embodiment, the transmission assembly includes:

[0011] The main drive component passes through the upper cover and is fixedly connected to the knob. The upper part of the main drive component is provided with a first transmission structure.

[0012] The second transmission structure is disposed on the upper cover and cooperates with the first transmission structure. As the knob rotates, the first transmission structure slides away from the second transmission structure, pushing the upper cover to move upward along the axis of the body until the knob stops rotating.

[0013] In one embodiment, the body has a mounting tube in its middle section; the transmission assembly includes:

[0014] The main drive component passes through the upper cover and is fixedly connected to the knob.

[0015] A guide structure is provided on the main transmission component and the upper cover, so that the upper cover can move up and down along the axis of the body when the knob is rotated;

[0016] The first transmission structure is located on the side wall of the mounting tube of the main body;

[0017] The second transmission structure is disposed on the upper cover and located outside the mounting tube. As the knob rotates, the first transmission structure slides away from the second transmission structure, pushing the upper cover to move upward along the axis of the body until the knob stops rotating.

[0018] In one embodiment, the upper cover has a first through hole in the middle for the upper end of the main drive component to pass through; the guide structure includes:

[0019] A limiting guide groove extends along the axial direction of the body; and,

[0020] A protrusion that slides within the limiting guide groove along the axial direction of the body;

[0021] The limiting guide groove and the protrusion are respectively located on the outside of the main transmission component and the other is located on the inner wall of the first through hole of the upper cover.

[0022] In one embodiment, the first transmission structure slides closer to the second transmission structure as the knob rotates, and the upper cover moves downward along the axial direction of the body and falls onto the body.

[0023] In one embodiment, the transmission assembly further includes:

[0024] The recovery component provides power for the upper cover to move downward along the axial direction of the body, driving the second transmission structure and the first transmission structure to move closer to each other.

[0025] In one embodiment, the recovery element includes a first spring located between the knob and the top cover, providing a restoring force for downward movement of the top cover along the axial direction of the body.

[0026] In one embodiment, the recovery member includes a magnetic suction member disposed on the upper cover and a magnetic suction member disposed on the body. A magnetic attraction force is formed between the upper cover and the body, causing the upper cover to move downward along the axial direction of the body and fall onto the body.

[0027] In one embodiment, the main body is further provided with a limiting plate, which is located on the bottom side of the upper cover; the recovery component includes a guide post, a second spring sleeved on the guide post, and a limiting block provided at the end of the guide post, the end of the guide post away from the limiting post passes through the limiting plate and is connected to the upper cover, and the second spring is located between the limiting plate and the limiting block.

[0028] In one embodiment, one of the first transmission structure and the second transmission structure includes a wavy sliding surface, and the other includes a contact surface or a protrusion, wherein the contact surface or the protrusion slides in contact with the wavy sliding surface.

[0029] In one embodiment, the wavy sliding surface is connected to the first transition surface, and the first transition surface is located at the end of the wavy sliding surface near the crest; and / or, the contact surface is connected to a second transition surface, and the second transition surface is located at the end of the contact surface near the wavy sliding surface.

[0030] In one embodiment, a first limiting portion is provided on the first transition surface and / or the second transition surface to limit the relative movement between the first transmission structure and the second transmission structure.

[0031] One of the first transmission structure and the second transmission structure includes a wave-shaped sliding groove, and the other includes a protruding post, which is located within the wave-shaped sliding groove.

[0032] In one embodiment, a mounting pipe is provided in the middle of the main body, and the water flow channel is formed between the outer wall of the mounting pipe and the inner wall of the main body; and / or,

[0033] The lower side of the upper cover is provided with a first annular portion extending along the axial direction of the body and located outside the mounting tube; and / or,

[0034] The upper side of the cover is provided with a second annular portion, and the bottom side of the knob is formed with a clearance space, wherein the second annular portion is at least partially located within the clearance space.

[0035] In one embodiment, the mounting tube is provided with a limiting plate, and the limiting plate is provided with a second through hole for the upper end of the main transmission component to pass through; the main transmission component is also provided with a limiting flange in the middle, and the upper side of the limiting flange forms a limiting position with the limiting plate.

[0036] In one embodiment, the mounting tube is provided with a limiting plate, and the limiting plate is provided with a second through hole for the upper end of the main transmission component to pass through; the main transmission component is also provided with a limiting flange in the middle, and the upper side of the limiting flange forms a limiting position with the limiting plate.

[0037] In one embodiment, the lower side of the upper cover is provided with a first annular portion extending along the axial direction of the body and located outside the mounting tube, and the second transmission structure is disposed on the first annular portion.

[0038] In one embodiment, the lower part of the main transmission member is provided with a third transmission structure; the transmission assembly further includes:

[0039] The driven component includes a first mounting portion fixedly connected to the lower cover, and a fourth transmission structure that cooperates with a third transmission structure of the main driven component; through the cooperation of the third transmission structure and the fourth transmission structure, a thrust is provided for the lower cover to move downward along the axial direction of the body.

[0040] The third spring provides power for the lower cover to move upward along the axis of the body.

[0041] In one embodiment, one of the third transmission structure and the fourth transmission structure includes a pushing surface, and the other includes a supporting surface that contacts and engages with the pushing surface;

[0042] The pushing surface extends along the axial direction of the main transmission component and also extends along the circumferential direction of the main transmission component.

[0043] The end of the supporting surface is provided with a second limiting part, which limits the distance between the third transmission structure and the fourth transmission structure; or, the fourth transmission structure includes a protruding rod that contacts and cooperates with the pushing surface, and the end of the pushing surface is provided with a third limiting part, which limits the distance between the third transmission structure and the fourth transmission structure.

[0044] In one embodiment, the pushing surface is connected to a first side surface, and the first side surface is a blocking surface that prevents the main drive member from rotating back.

[0045] In one embodiment, a limiting surface is formed at the end of the supporting surface, and the second limiting part is a limiting groove formed on the limiting surface. The limiting groove cooperates with the end of the pushing surface to limit the movement. The limiting groove includes a second side surface near the supporting surface and a third side surface connected to the second side surface. The second side surface is a blocking surface that prevents the main drive component from rotating back, and the third side surface is an inclined surface.

[0046] In one embodiment, the lower cover includes a sealing plate, the upper side of which protrudes upward to form two fixing posts fixedly connected to the first mounting portion on the transmission member, and the fixing posts are arranged opposite each other about the central axis of the sealing plate; or,

[0047] The lower cover includes a sealing plate and a second mounting portion protruding from the center of the sealing plate. The second mounting portion passes through the lower opening and is fixedly connected to the lower part of the transmission member.

[0048] In one embodiment, the knob is provided with a mounting groove, and the bottom of the mounting groove is provided with a fifth through hole, and the mounting post is provided with a sixth through hole; the stopper also includes a thermometer, the thermometer includes a dial and a probe, the dial is housed in the mounting groove, and the probe passes through the fifth through hole of the knob, the sixth through hole of the mounting post and the lower opening of the body in sequence and is exposed outside the body.

[0049] This utility model also proposes a thermos, including a stopper, wherein the stopper comprises:

[0050] The plug body has a water outlet hole formed through it;

[0051] The top cover is lifted and installed on the top side of the plug body. The top cover is set corresponding to the top opening of the water outlet and is used to control the opening and closing of the top opening of the water outlet.

[0052] A lower cover, movably mounted on the bottom side of the plug body, is provided corresponding to the bottom opening of the water outlet, and is used to control the closing of the bottom opening of the water outlet; and,

[0053] A drive assembly for controlling the upper cover and the lower cover to move away from or towards the plug.

[0054] The technical solution of this utility model, after installing the stopper on the thermos, controls the drive assembly to move the upper and lower covers away from the body, thereby opening the water flow channel and facilitating the pouring of water from the thermos out of the outside of the thermos. After stopping the pouring, the upper and lower covers move closer to the stopper, closing the water flow channel. This reduces the connection between the water flow channel and the inside of the thermos, reduces the entry of debris from the water flow channel into the thermos, and overall improves the problem of water in the thermos being easily contaminated when flowing through the water flow channel. Attached Figure Description

[0055] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0056] Figure 1 A schematic diagram of the structure of an embodiment of the kettle stopper provided by this utility model;

[0057] Figure 2 for Figure 1 A schematic diagram of the structure when the stopper is open;

[0058] Figure 3 for Figure 1 A schematic diagram of the exploded structure of the kettle stopper;

[0059] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0060] Figure 5 for Figure 1 A schematic diagram of the second transmission structure in the diagram;

[0061] Figure 6 A schematic diagram of another embodiment of the kettle stopper provided by this utility model;

[0062] Figure 7 for Figure 6 A partial structural diagram of the kettle stopper;

[0063] Figure 8 for Figure 6 A schematic diagram of the guide structure in the stopper of the kettle;

[0064] Figure 9 for Figure 8 A partial cross-sectional view of the upper cover;

[0065] Figure 10 A schematic diagram of another embodiment of the kettle stopper provided by this utility model;

[0066] Figure 11 for Figure 9 Diagram showing the connection of the top cap in the middle stopper;

[0067] Figure 12 A schematic diagram of another embodiment of the kettle stopper provided by this utility model;

[0068] Figure 13 For this Figure 12 A partial structural diagram of the middle stopper;

[0069] Figure 14 A schematic diagram of another embodiment of the kettle stopper provided by this utility model;

[0070] Figure 15 for Figure 1 A cross-sectional view of the stopper in the pot;

[0071] Figure 16 for Figure 1 A cross-sectional view of the stopper in the pot;

[0072] Figure 17 for Figure 2 A cross-sectional view of the stopper in the pot;

[0073] Figure 18 for Figure 2 A cross-sectional view of the stopper in the pot;

[0074] Figure 19 for Figure 3 A cross-sectional view of the stopper in the pot;

[0075] Figure 20 for Figure 1 A partial connection diagram of the kettle stopper;

[0076] Figure 21 for Figure 1 A partial connection diagram of the kettle stopper.

[0077] Explanation of icon numbers:

[0078] 1. Body; 11. Water flow channel; 12. Limiting plate; 121. Second through hole; 13. Mounting post; 131. Sixth through hole; 2. Top cover; 21. First through hole; 22. First annular part; 23. Second annular part; 3. Knob; 31. Clearance space; 32. Mounting groove; 33. Fifth through hole; 34. First screw; 4. Bottom cover; 41. Sealing plate; 411. Fixing post; 42. Flexible sealing sleeve; 5. Transmission assembly; 51. Main transmission component; 511. First transmission structure; 5111. Wavy sliding surface; 5112. First transition surface; 5113. Wavy driving surface; 5114. Wavy sliding groove; 512. Limiting flange; 513. Third transmission structure ; 5131, Pushing surface; 5132, First side surface; 52, Second transmission structure; 53, Guide structure; 531, Limiting guide groove; 532, Protrusion; 54, Recovery component; 541, Guide post; 542, Second spring; 543, Limiting block; 55, Driven component; 551, First mounting part; 552, Fourth transmission structure; 5521, Supporting surface; 5522, Second limiting part; 5523, Second side surface; 5524, Third side surface; 553, Second screw; 56, Third spring; 6, Thermometer; 61, Dial; 62, Probe; 621, Cover plate; 7, Mounting tube; 71, Connecting post; 72, Base plate; 73, Support post; 731, Third screw.

[0079] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0080] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0081] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0082] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0083] A typical thermos flask consists of a body and a stopper. The stopper has a water flow channel running through it, with a cap at the bottom. When water needs to be poured, the cap opens, allowing water to flow from the thermos into the stopper and out through the water flow channel. When water is not needed, the cap closes, preventing water from flowing into the stopper. The stopper often uses a button or toggle to control the opening and closing of the cap. When not in use, the lower end of the water flow channel is sealed by the cap, while the upper end remains exposed. This makes it easy for foreign objects to enter the water flow channel and for bacteria to grow inside, leading to contamination of the water as it flows through.

[0084] This utility model proposes a kettle stopper that is assembled on the kettle body.

[0085] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 In one embodiment of this utility model,

[0086] The stopper includes:

[0087] The body 1 has a water flow channel 11 formed inside it. The water flow channel 11 has an upper opening at the top of the body 1 and a lower opening at the bottom of the body 1.

[0088] The upper cover 2 is located on the upper part of the body 1 and moves up and down along the axis of the body 1 to open / close the upper opening of the body 1;

[0089] Knob 3 is located above the upper cover 2;

[0090] The lower cover 4, located at the lower part of the body 1, moves up and down along the axis of the body 1 to open / close the lower opening of the body 1; and,

[0091] The transmission component 5 has its upper end passing through the upper cover 2 and connected to the knob 3. As the knob 3 rotates, the transmission component 5 causes the upper cover 2 and the lower cover 4 to move up and down along the axis of the body 1.

[0092] The technical solution of this utility model, by rotating the knob 3, controls the transmission component 5 to rotate with the knob 3, enabling the upper cover 2 and the lower cover 4 to move up and down along the circumferential direction of the body 1. When the upper cover 2 moves upward and the lower cover 4 moves downward, the upper cover 2 and the lower cover 4 move away from each other, opening the upper opening and the lower opening of the water flow channel 11, thus opening the water flow channel 11. When the upper cover 2 moves downward and the lower cover 4 moves upward, the upper and lower openings of the water flow channel 11 close simultaneously, reducing the risk of the water flow channel 11 being exposed, improving the hygiene of the water flow channel 11, and thus improving the overall problem of water in the thermos being easily contaminated when flowing through the water flow channel.

[0093] The upper cover 2 is raised and lowered on the body 1. When the upper cover 2 is raised and lowered, the upper cover 2 can rotate relative to the body 1 or stop rotating.

[0094] Combined with reference Figure 3 , Figure 4 and Figure 5 In the first embodiment, the transmission assembly 5 includes:

[0095] Main transmission component 51, which passes through the upper cover 2 and is fixedly connected to the knob 3, and has a first transmission structure 511 on its upper part; and,

[0096] The second transmission structure 52 is disposed on the upper cover 2 and cooperates with the first transmission structure 511. As the knob 3 rotates, the first transmission structure 511 slides away from the second transmission structure 52, pushing the upper cover 2 to move upward along the axis of the body 1 until the knob 3 stops rotating.

[0097] When the knob 3 is rotated, the first transmission structure 511 and the second transmission structure 52 slide away from each other, thereby causing the upper cover 2 to move away from the first transmission structure 511, thus enabling the upper cover 2 to open the upper opening of the water flow channel 11.

[0098] Furthermore, a first screw 34 is connected between the main drive component 51 and the knob 3, thereby achieving a fixed connection between the main drive component 51 and the knob 3.

[0099] One of the first transmission structure 511 and the second transmission structure 52 includes a wave-shaped sliding surface 5111, and the other includes a contact surface or a protrusion, wherein the contact surface or the protrusion is in sliding contact with the wave-shaped sliding surface 5111.

[0100] Optionally, in one embodiment, the first transmission structure 511 includes a wavy sliding surface 5111; the second transmission structure 52 includes a contact surface that slides in contact with the wavy sliding surface 5111.

[0101] The wavy sliding surface 5111 includes an ascending section and a descending section within each wavy sliding surface 5111. Rotating the knob 3 causes the first transmission structure 511 and the second transmission structure to rotate relative to each other, allowing the second transmission structure 52 to abut against and slide along the ascending section of the first transmission structure 511. This causes the first transmission structure 511 and the second transmission structure 52 to move away from each other along the axis of the body 1, thus enabling the upper cover 2 to move upward and open the upper opening of the water flow channel. Stopping the rotation of the knob 3 stops the upper cover 2 from rising. Rotating the knob 3 causes the upper cover 2 to fall under the influence of gravity or other external forces when the projection of the second transmission structure 52 is located on the descending section of the first transmission structure 511, allowing the second transmission structure 52 to abut against the descending section of the first transmission structure 511. When the second transmission structure 52 reaches its lowest point, the upper cover 2 stops falling, thereby closing the upper opening of the water flow channel 11.

[0102] In another embodiment, the second transmission structure 52 includes a protruding post that slides in contact with the wavy sliding surface 5111. In this embodiment, the protruding post replaces the contact surface structure and slides relative to the wavy sliding surface 5111, realizing the upward and downward movement of the upper cover. The principle of the protruding post sliding relative to the wavy sliding surface 5111 is similar to the principle of the contact surface sliding relative to the wavy sliding surface 5111.

[0103] Furthermore, the second transmission structure 52 is also provided with a second transition surface connected to the contact surface, the second transition surface being located at one end of the contact surface near the wavy sliding surface 5111.

[0104] When the knob 3 is rotated, and the second transition surface abuts against the crest of the wave-shaped sliding surface 5111, even if the knob 3 rotates at a small angle, the upper cover 2 can still be kept at the corresponding height position.

[0105] Furthermore, the first transmission structure 511 also includes a first transition surface 5112, which is connected to the wavy sliding surface 5111, and the first transition surface 5112 is located at one end of the wavy sliding surface 5111 near the wavy sliding surface 5111. Even if the knob 3 rotates at a small angle, the second transmission structure 52 can continue to press against the first transition surface 5112, thereby keeping the upper cover 2 in a stable open state.

[0106] Specifically, the first transition surface 5112 is located between the rising and falling segments of the same wave-shaped sliding surface 5111, and the first transition surface 5112 connects the rising and falling segments of the same wave-shaped sliding surface 5111.

[0107] Furthermore, a first limiting portion is provided on the first transition surface 5112 to limit the relative movement between the first transmission structure 511 and the second transmission structure 52. When the knob 3 is stopped, the first limiting portion reduces the relative movement between the first transmission structure 511 and the second transmission structure 52, thereby keeping the upper cover 2 in the open state. Specifically, the first limiting portion can be a groove provided on the first transition surface. When the second transmission structure 52 abuts in the groove, stopping the rotation of the knob 3 prevents the second transmission structure 52 from naturally dislodging from the groove, which helps to keep the upper cover 2 in a stable open state.

[0108] Similarly, a first limiting part can also be provided on the second transition surface to limit the relative movement between the first transmission structure 511 and the second transmission structure 52.

[0109] Please see Figure 6 , Figure 7 , Figure 8 and Figure 9 In the second embodiment of this application, the main body 1 is provided with an installation tube 7 in the middle; the transmission assembly 5 includes:

[0110] Main drive component 51, which passes through the upper cover 2 and is fixedly connected to the knob 3;

[0111] A guide structure 53 is provided on the main transmission component 51 and the upper cover 2, so that the upper cover 2 can rotate with the knob 3 and move up and down along the axis of the body 1;

[0112] The first transmission structure 511 is disposed on the side wall of the mounting tube 7 of the main body 1;

[0113] The second transmission structure 52 is disposed on the upper cover 2 and located outside the mounting tube 7. The first transmission structure 511 slides away from the second transmission structure 52 as the knob 3 rotates, pushing the upper cover 2 to move upward along the axis of the body 1 until the knob 3 stops rotating.

[0114] The difference from the first embodiment lies in the different positions of the first transmission structure 511 and the second transmission structure 52 in this embodiment. Furthermore, by providing a guide structure 53, the upper cover 2 rotates with the knob 3, and while the upper cover 2 rotates with the knob 3, the second transmission structure 52 and the first transmission structure 511 slide relatively away from each other along the axis of the body 1. When the knob 3 stops rotating, the second transmission structure 52 and the first transmission structure 511 stop rotating relative to each other. Additionally, the specific structures of the first transmission structure 511 and the second transmission structure 52 in the second embodiment are the same as those in the first embodiment.

[0115] Furthermore, the upper cover 2 has a first through hole 21 in the middle for the upper end of the main drive component 51 to pass through. The guide structure 53 includes a limiting guide groove 531 and a protrusion 532. The limiting guide groove 531 extends along the axial direction of the body 1; the protrusion 532 slides within the limiting guide groove 531 along the axial direction of the body 1.

[0116] Optionally, the limiting guide groove 531 is disposed on the outside of the main transmission member 51 and extends along the axial direction of the body 1, and the protrusion 532 extends from the inner wall of the first through hole 21 of the upper cover 2. Similarly, the limiting guide groove 531 may be disposed on the inner wall of the first through hole 21 of the upper cover 2 and extend along the axial direction of the body 1, and the protrusion 532 may be disposed on the outside of the main transmission member 51.

[0117] The limiting guide groove 531 and the protrusion 532 ensure the relative movement of the upper cover 2 and the main transmission component 51 in the axial direction of the body 1; when the knob 3 drives the main transmission component 51 to rotate synchronously, the limiting guide groove 531 and the protrusion 532 cooperate with each other, enabling the upper cover 2 to rotate synchronously with the main transmission component 51, thus realizing the synchronous rotation of the upper cover 2 with the knob 3.

[0118] The lower side of the upper cover 2 is provided with a first annular portion 22 extending along the axial direction of the body 1 and located outside the mounting tube 7. The first annular portion 22 is provided with a second transmission structure 52. When the upper cover 2 rotates synchronously with the knob 3, the first transmission structure 511 and the second transmission structure 52 enable the upper cover 2 to rise and move away from the body 1.

[0119] Preferably, the second transmission structure 52 is disposed inside the first annular portion 22. The second transmission structure 52 is located outside the mounting tube 7, and the first transmission structure 511 is disposed outside the mounting tube 7.

[0120] Please see Figure 6 , Figure 7 , Figure 8 and Figure 9 In one embodiment, the first transmission structure 511 slides relatively close to the second transmission structure 52 as the knob 3 rotates, and the upper cover 2 moves downward along the axial direction of the body 1 and falls on the body 1.

[0121] When the knob 3 is rotated, and the projection of the second transmission structure 52 onto the wave-shaped sliding surface 5111 is located in the descending section of the wave-shaped sliding surface 5111, the upper cover 2 can move downward along the axial direction of the body 1 under the drive of gravity or other external forces, and can fall onto the body 1, thereby realizing the closure of the upper opening of the water flow channel 11 by the upper cover 2.

[0122] Please see Figure 3 , Figure 4 , Figure 10 and Figure 11 In another embodiment, the transmission assembly 5 further includes:

[0123] The recovery component 54 provides power for the upper cover 2 to move downward along the axial direction of the body 1, driving the second transmission structure 52 and the first transmission structure 511 to move closer to each other.

[0124] When the knob 3 is rotated to the appropriate position, that is, when the projection of the protrusion on the wave-shaped sliding surface 5111 is located in the descending section of the wave-shaped sliding surface 5111, the recovery member 54 applies a downward force along the axis of the body 1 to the upper cover 2, so that the upper cover 2 stably closes the upper opening of the water flow channel 11.

[0125] In one embodiment of this application, one of the first transmission structure 511 and the second transmission structure 52 includes a wave-shaped sliding groove, and the other includes a protruding post located within the wave-shaped sliding groove.

[0126] Please see Figure 3 , Figure 4 , Figure 10 and Figure 11The first transmission structure 511 includes a wave-shaped sliding surface 5111 and a wave-shaped driving surface 5113. Both the wave-shaped sliding surface 5111 and the wave-shaped driving surface 5113 are formed on the main transmission member 51. The wave-shaped driving surface 5113 is parallel to the extending direction of the wave-shaped sliding surface 5111. A wave-shaped sliding groove 5114 is formed between the wave-shaped driving surface 5113 and the wave-shaped sliding surface 5111. The second transmission structure 52 includes a protruding post. The protruding post is fixedly connected to the upper cover 2 and is located in the wave-shaped sliding groove 5114. When the knob 3 is rotated, the protruding post can slide in the wave-shaped sliding groove 5114, thereby limiting the movement of the upper cover 2 and realizing the raising or lowering of the upper cover 2.

[0127] In one embodiment of this application, please refer to Figure 3 , Figure 4 , Figure 12 and Figure 13 The recovery component 54 includes a first spring located between the knob 3 and the upper cover 2, providing a restoring force for the upper cover 2 to move downward along the axial direction of the body 1.

[0128] When the knob 3 is rotated, causing the upper cover 2 to move upward, the first spring is compressed and deformed. When the upper cover 2 moves to its highest point, the deformation of the first spring reaches its maximum. When the knob 3 is rotated to the appropriate position, that is, when the projection of the protrusion on the wavy sliding surface 5111 is located in the descending section of the wavy sliding surface 5111, the spring returns to its original deformation and extends, applying downward pressure to the upper cover 2, thereby causing the upper cover 2 to fall and close the upper opening of the water flow channel 11.

[0129] The first spring can be any elastic element, as long as it is located between the knob 3 and the upper cover 2, and the first spring undergoes elastic deformation when the upper cover 2 moves upward.

[0130] In one embodiment of this application, please refer to Figure 3 , Figure 4 and Figure 14 The recovery component 54 includes a magnetic suction component disposed on the upper cover 2 and a magnetic suction component disposed on the body 1; a magnetic attraction force is formed between the upper cover 2 and the body 1, causing the upper cover 2 to move downward along the axial direction of the body 1 and fall onto the body 1.

[0131] The magnetic attraction components on the upper cover 2 and the main body 1 cooperate to attract and bring the upper cover 2 and the main body 1 closer together. When the knob 3 is rotated to the appropriate position, that is, when the projection of the protrusion on the wavy sliding surface 5111 is located in the descending section of the wavy sliding surface 5111, the magnetic attraction components on the upper cover 2 and the main body 1 cooperate to allow the upper cover 2 to fall and close the upper opening of the water flow channel 11.

[0132] One of the magnetic components on the upper cover 2 and the magnetic component on the body 1 can be a magnet, and the other can be a ferromagnetic metal component; preferably, both the magnetic component on the upper cover 2 and the magnetic component on the body 1 are magnets, and both are permanent magnets, and the magnetic poles of the magnetic component on the upper cover 2 and the magnetic component on the body 1 are opposite, which ensures the mutual attraction between the magnetic component on the upper cover 2 and the magnetic component on the body 1.

[0133] Specifically, multiple magnetic components on the upper cover 2 and the magnetic components on the body 1 are arranged in a one-to-one correspondence around the axis of the body 1, ensuring uniform adsorption between the upper cover 2 and the body 1.

[0134] In one embodiment of this application, please refer to Figure 3 , Figure 4 , Figure 15 and Figure 16 The main body 1 is also provided with a limiting plate 12, which is located on the bottom side of the upper cover 2; the recovery component 54 includes a guide post 541, a second spring 542 sleeved on the guide post 541, and a limiting block 543 provided at the end of the guide post 541. The end of the guide post 541 away from the limiting post passes through the limiting plate 12 and is connected to the upper cover 2. The second spring 542 is located between the limiting plate 12 and the limiting block 543.

[0135] When the upper cover 2 is away from the body 1, the guide post 541 can slide, and the limiting block 543 can move with the guide post 541, so that the second spring 542 is compressed and deformed; when the knob 3 is rotated to an appropriate position, that is, when the projection of the protrusion on the wave-shaped sliding surface 5111 is located in the descending section of the wave-shaped sliding surface 5111, the second spring 542 extends, and the second spring 542 can drive the limiting block 543 to move the guide post 541, so that the upper cover 2 is close to the body 1 and covers the body 1.

[0136] Please see Figure 14 , Figure 15 , Figure 16 and Figure 17The guide post 541 includes the screw shank, and the limiting block 543 includes the screw nut. The guide post 541 and the limiting block 543 are integrally fixedly connected, or can be replaced by a screw. Optionally, the guide post 541 is threadedly connected to the upper cover 2.

[0137] Preferably, two guide posts 541 are symmetrically arranged along the axis of the body 1.

[0138] The main body 1 has an installation tube 7 in the middle, and the water flow channel 11 is formed between the outer wall of the installation tube 7 and the inner wall of the main body 1; the lower side of the upper cover 2 has a first annular part 22 located outside the installation tube 7. When the upper cover 2 is opened, the first annular part 22 moves to cover the installation tube 7, thereby reducing the exposure of the top of the installation tube 7.

[0139] Specifically, the main body 1 is tubular, and the mounting tube 7 is coaxial with the main body 1. A connecting post 71 connects the outer side wall of the mounting tube 7 and the inner side wall of the main body 1. The connecting post 71 ensures the connection between the mounting tube 7 and the main body 1. The mounting tube 7 makes the water flow channel 11 arranged in a ring shape, which facilitates pouring the water out of the thermos.

[0140] The upper cover 2 has a second annular portion 23 on its upper side, and the knob 3 has a clearance space 31 formed on its bottom side. The second annular portion 23 is at least partially located within the clearance space 31. When the upper cover 2 moves away from the body 1, it can avoid the movement path of the second annular portion 23 through the clearance space 31; the second annular portion 23 can also block the area inside it.

[0141] Specifically, the avoidance area can be an avoidance groove located at the bottom of the knob 3.

[0142] Please see Figure 13 , Figure 15 , Figure 16 and Figure 18 The mounting tube 7 is provided with a limiting plate 12, and the limiting plate 12 is provided with a second through hole 121 for the upper end of the main transmission component 51 to pass through; the main transmission component 51 is also provided with a limiting flange 512 in the middle, and the upper side of the limiting flange 512 forms a limiting with the limiting plate 12.

[0143] The limiting plate 12 enables the movement of the active component along the axis of the body 1 to be limited. Specifically, the limiting flange 512 includes a limiting ring, which is integrally sleeved on the active component, and the outer diameter of the limiting ring is larger than the outer diameter of the second through hole 121.

[0144] Specifically, the limiting plate 12 is located inside the mounting tube 7, and the diameter of the mounting tube 7 gradually increases from the bottom side of the mounting tube 7 toward the top side of the mounting tube 7.

[0145] The mounting tube 7 is fixedly installed inside the body 1. A support column 73 is fixedly installed inside the mounting tube. The support column 73 extends along the axis of the body 1, and a third screw 731 connects the support column 73 and the limiting plate 12.

[0146] Please see Figure 4 , Figure 16 , Figure 20 and Figure 21 The main transmission component 51 has a third transmission structure 513 at its lower part; the transmission assembly 5 also includes:

[0147] The driven component 55 includes a first mounting part 551 fixedly connected to the lower cover 4, and a fourth transmission structure 552 that cooperates with the third transmission structure 513 of the main drive component 51; through the cooperation of the third transmission structure 513 and the fourth transmission structure 552, a thrust is provided for the lower cover 4 to move downward along the axial direction of the body 1.

[0148] The third spring 56 provides power for the lower cover 4 to move upward along the axis of the body 1.

[0149] The movement of the main transmission component 51 is limited by the limiting plate 12, thereby ensuring that the main transmission component 51 provides power to the lower cover 4 away from the body 1 through the third transmission structure 513 and the fourth transmission structure 552, so that the bottom cover moves away from the body 1 and opens the lower opening of the water flow channel 11.

[0150] One of the third transmission structure 513 and the fourth transmission structure 51 includes a pushing surface 5131, and the other includes a supporting surface 5521 that contacts and cooperates with the pushing surface 5131; the pushing surface 5131 extends along the axial direction of the main transmission member 51 and extends along the circumferential direction of the main transmission member 51.

[0151] Preferably, the third transmission structure 513 has a pushing surface 5131; the fourth transmission structure 552 has a supporting surface 5521, and the end of the supporting surface 5521 is provided with a second limiting part 5522, which limits the distance between the third transmission structure 513 and the fourth transmission structure 552.

[0152] When the knob 3 is rotated and the main drive component 51 is driven to rotate, the pushing surface 5131 can abut against the supporting surface 5521. When the main drive component 51 is rotated, the pushing surface 5131 and the supporting surface 5521 cooperate with each other, which can push the lower cover 4 away from the main drive component 51, so that the lower cover 4 is away from the body 1, thereby opening the lower cover 4.

[0153] The fourth transmission structure 552 includes a protruding rod that contacts and engages with the pushing surface 5131, and the end of the pushing surface 5131 is provided with a third limiting part, which limits the distance between the third transmission structure 513 and the fourth transmission structure 552.

[0154] The third limiting part can be a limiting groove formed on the pushing surface 5131. When the protruding rod is located in the third limiting part, the movement of the protruding rod can be limited, thereby realizing the limiting between the third transmission structure 513 and the fourth transmission structure 552.

[0155] Please see Figure 4 , Figure 16 , Figure 20 and Figure 21 The pushing surface 5131 can be an arc-shaped surface or an inclined surface, and the distance between the pushing surface 5131 and the driven component 55 gradually decreases along the rotation direction of the main drive component 51; the supporting surface 5521 can be an arc-shaped surface or an inclined surface, and the distance between the pushing surface 5131 and the driven component 51 gradually decreases along the rotation direction of the main drive component 51.

[0156] The third transmission structure 513 further includes a first side surface 5132 opposite to the pushing surface 5131, and the first side surface 5132 is a blocking surface that prevents the main transmission member 51 from rotating back.

[0157] When the main drive component 51 rotates in the opposite direction, the first side surface 5132 can abut against the fourth limiting component, thereby blocking the rotation of the main drive component 51.

[0158] The end of the support surface 5521 forms a limiting surface, and the second limiting part 5522 is a limiting groove formed on the limiting surface. The limiting groove cooperates with the end of the pushing surface 5131 to limit the movement. The limiting groove includes a second side surface 5523 near the support surface 5521 and a third side surface 5524 connected to the second side surface 5523. The second side surface 5523 is a blocking surface that prevents the main transmission member 51 from rotating back, and the third side surface 5524 is an inclined surface.

[0159] When the third transmission structure 513 abuts against the limiting groove, when the main transmission member 51 rotates in the direction of rotation, the third transmission structure 513 abuts against the blocking surface, thereby limiting the rotation of the main transmission member 51. When the main transmission member 51 rotates in the forward direction, the third transmission structure 513 can move along the surface of the third side 5524, ensuring that the third transmission structure 513 can disengage from the second limiting part 5522. Through the second limiting part 5522, the natural sliding of the third transmission structure 513 can be reduced, ensuring relative anti-rotation between the main transmission member 51 and the driven transmission member 55, thereby ensuring that the lower cover 4 remains in the open state.

[0160] Please see Figure 4 , Figure 16 , Figure 20 and Figure 21 The lower cover 4 includes a sealing plate 41, the upper side of which protrudes upward to form two fixing posts 411 that are fixedly connected to the first mounting part 551 on the transmission member 55, and the fixing posts 411 are arranged opposite to each other with respect to the central axis of the sealing plate 41.

[0161] The fixed connection between the fixed post 411 and the first mounting part 551 ensures the synchronous movement of the driven member 55 and the lower cover 4. Specifically, a second screw 553 is threadedly connected between the fixed post 411 and the first mounting part 551.

[0162] The top end of the fixing post 411 is at least partially located inside the mounting tube 7.

[0163] The lower cover 4 includes a sealing plate 41 and a second mounting portion (not shown) protruding from the center of the sealing plate 41. The second mounting portion passes through the lower opening and is fixedly connected to the lower part of the transmission member 55.

[0164] The fixed connection between the second mounting part and the first mounting part 551 ensures the synchronous movement of the transmission member 55 and the lower cover 4.

[0165] The main body 1 has a mounting post 13 at its center, and the transmission component 5 is at least partially sleeved on the mounting post 13.

[0166] The mounting post 13 limits the rotation of the transmission assembly 5 and its movement along the axis of the body 1. Specifically, both the main transmission member 51 and the driven transmission member 55 are sleeved on the mounting post 13, ensuring the stability of their rotation. The third spring 56 is also sleeved on the mounting post 13.

[0167] The driven member 55 is annular, and the driven member is slidably sleeved on the mounting post 13.

[0168] The knob 3 is provided with a mounting groove 32, and the bottom of the mounting groove 32 is provided with a fifth through hole 33. The mounting post 13 is provided with a sixth through hole 131. The stopper also includes a thermometer 6, which includes a dial 61 and a probe 62. The dial 61 is housed in the mounting groove 32. The probe 62 passes through the fifth through hole 33 of the knob 3, the sixth through hole 131 of the mounting post 13, and the lower opening of the body 1 and protrudes outside the body 1.

[0169] By allowing the probe 62 of the thermometer 6 to pass through the stopper and then installing the stopper inside the thermos, the probe 62 of the thermometer 6 can be inserted into the thermos, thereby enabling the detection of the water temperature inside the thermos and displaying the water temperature on the dial 61.

[0170] The sealing plate 41 has a third through hole in its center, and the probe 62 passes through the third through hole.

[0171] The stopper also includes a base plate 72, which is located inside the mounting tube 7. The periphery of the base plate 72 is sealed to the inner side of the mounting tube 7. The base plate 72 can seal the bottom side of the second tube shell, reducing the amount of water from the thermos entering the inner side of the second tube shell. The mounting post 13 is fixedly connected to the base plate 72.

[0172] The probe 62 passes through the base plate 72, which can be a flexible component, ensuring a sealing effect between the base plate 72 and the probe 62.

[0173] Please see Figure 2 and Figure 3 The lower cover 4 further includes a flexible sealing sleeve 42, and the sealing plate 41 is embedded in the flexible sealing sleeve 42. When the lower cover 4 is close to the plug, the flexible sealing sleeve 42 can abut against the edge of the water flow channel 11, ensuring the sealing effect of the lower cover 4 on the water flow channel 11. The flexible sealing sleeve 42 can be a rubber sleeve.

[0174] The inner diameter of the upper cover 2 is smaller than the outer diameter of the mounting tube 7, and the outer diameter of the upper cover 2 is larger than the outer diameter of the body 1. The upper cover 2 can abut against the mounting tube 7. The bottom of the upper cover 2 has a third protrusion, which is used to abut against the top side of the mounting tube 7 to ensure the closing effect of the upper cover 2 on the water outlet.

[0175] A cover plate 621 is fixedly installed on the probe 62. The cover plate 621 abuts against the nut of the first screw 34, reducing the contact between the first screw 34 and the machine body.

[0176] This utility model also proposes a thermos, which includes a body and a stopper. The specific structure of the stopper is as described in the above embodiments. Since this thermos adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The top side of the body has a spout, and the stopper is located inside the spout of the body.

[0177] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A kettle stopper, characterized in that, include: The body has a water flow channel formed within it, with an upper opening at the top and a lower opening at the bottom. The top cover is located on the upper part of the body and moves up and down along the axis of the body to open / close the upper opening of the body; The knob is located above the upper cover; The lower cover is located at the lower part of the body and moves up and down along the axis of the body to open / close the lower opening of the body; as well as, A transmission assembly, the upper end of which passes through the upper cover and is connected to the knob, causes the upper cover and the lower cover to move up and down along the axis of the body as the knob rotates.

2. The stopper as described in claim 1, characterized in that, The transmission assembly includes: A main drive component, which passes through the upper cover and is fixedly connected to the knob, and has a first transmission structure on its upper part; and... The second transmission structure is disposed on the upper cover and cooperates with the first transmission structure. As the knob rotates, the first transmission structure slides away from the second transmission structure, pushing the upper cover to move upward along the axis of the body until the knob stops rotating.

3. The stopper as described in claim 1, characterized in that, The main body has a mounting tube in its middle part; the transmission assembly includes: The main drive component passes through the upper cover and is fixedly connected to the knob. A guide structure is provided on the main transmission component and the upper cover, so that the upper cover can move up and down along the axis of the body when the knob is rotated; The first transmission structure is located on the side wall of the mounting tube of the main body; The second transmission structure is disposed on the upper cover and located outside the mounting tube. As the knob rotates, the first transmission structure slides away from the second transmission structure, pushing the upper cover to move upward along the axis of the body until the knob stops rotating.

4. The stopper as described in claim 3, characterized in that, The upper cover has a first through hole in the middle for the upper end of the main drive component to pass through; the guide structure includes: A limiting guide groove extends along the axial direction of the body; and, A protrusion that slides within the limiting guide groove along the axial direction of the body; The limiting guide groove and the protrusion are respectively located on the outside of the main transmission component and the other is located on the inner wall of the first through hole of the upper cover.

5. The stopper as described in any one of claims 2-4, characterized in that, The first transmission structure slides closer to the second transmission structure as the knob rotates, and the upper cover moves downward along the axis of the body and falls onto the body.

6. The stopper as described in any one of claims 2-4, characterized in that, The transmission assembly also includes: The recovery component provides power for the upper cover to move downward along the axial direction of the body, driving the second transmission structure and the first transmission structure to move closer to each other.

7. The stopper as claimed in claim 6, characterized in that, The recovery component includes a first spring located between the knob and the upper cover, providing a restoring force for the upper cover to move downward along the axial direction of the body.

8. The stopper as claimed in claim 6, characterized in that, The recovery component includes a magnetic suction element disposed on the upper cover and a magnetic suction element disposed on the body. A magnetic attraction force is formed between the upper cover and the body, causing the upper cover to move downward along the axial direction of the body and fall onto the body.

9. The stopper as claimed in claim 6, characterized in that, The main body is also provided with a limiting plate, which is located on the bottom side of the upper cover; the recovery component includes a guide post, a second spring sleeved on the guide post, and a limiting block provided at the end of the guide post. The end of the guide post away from the limiting post passes through the limiting plate and is connected to the upper cover. The second spring is located between the limiting plate and the limiting block.

10. The stopper as claimed in claim 2 or 3, characterized in that, One of the first transmission structure and the second transmission structure includes a wavy sliding surface, and the other includes a contact surface or a protrusion, wherein the contact surface or the protrusion slides in contact with the wavy sliding surface.

11. The stopper as claimed in claim 10, characterized in that, The wavy sliding surface is connected to a first transition surface, and the first transition surface is located at the end of the wavy sliding surface near the crest; and / or, the contact surface is connected to a second transition surface, and the second transition surface is located at the end of the contact surface near the wavy sliding surface.

12. The stopper as claimed in claim 11, characterized in that, A first limiting part is provided on the first transition surface and / or the second transition surface to limit the relative movement between the first transmission structure and the second transmission structure.

13. The stopper as claimed in claim 2 or 3, characterized in that, One of the first transmission structure and the second transmission structure includes a wave-shaped sliding groove, and the other includes a protruding post, which is located within the wave-shaped sliding groove.

14. The stopper as claimed in claim 1, characterized in that, The main body has an installation pipe in its middle section, and the water flow channel is formed between the outer wall of the installation pipe and the inner wall of the main body; and / or The lower side of the upper cover is provided with a first annular portion extending along the axial direction of the body and located outside the mounting tube; and / or, The upper side of the cover is provided with a second annular portion, and the bottom side of the knob is formed with a clearance space, wherein the second annular portion is at least partially located within the clearance space.

15. The stopper as claimed in claim 3, characterized in that, The mounting tube is provided with a limiting plate, and the limiting plate is provided with a second through hole for the upper end of the main transmission component to pass through; the main transmission component is also provided with a limiting flange in the middle, and the upper side of the limiting flange forms a limiting position with the limiting plate.

16. The stopper as claimed in claim 3, characterized in that, The lower side of the upper cover is provided with a first annular portion extending along the axial direction of the body and located outside the mounting tube, and the second transmission structure is provided on the first annular portion.

17. The stopper as described in any one of claims 2-4, characterized in that, The lower part of the main transmission component is provided with a third transmission structure; the transmission assembly also includes: The driven component includes a first mounting portion fixedly connected to the lower cover, and a fourth transmission structure that cooperates with a third transmission structure of the main driven component; through the cooperation of the third transmission structure and the fourth transmission structure, a thrust is provided for the lower cover to move downward along the axial direction of the body. The third spring provides power for the lower cover to move upward along the axis of the body.

18. The stopper as claimed in claim 17, characterized in that, One of the third transmission structure and the fourth transmission structure includes a pushing surface, and the other includes a supporting surface that contacts and cooperates with the pushing surface; The pushing surface extends along the axial direction of the main transmission component and also extends along the circumferential direction of the main transmission component. The end of the supporting surface is provided with a second limiting part, which limits the distance between the third transmission structure and the fourth transmission structure; or, the fourth transmission structure includes a protruding rod that contacts and cooperates with the pushing surface, and the end of the pushing surface is provided with a third limiting part, which limits the distance between the third transmission structure and the fourth transmission structure.

19. The stopper as claimed in claim 18, characterized in that, The pushing surface is connected to a first side surface, and the first side surface is a blocking surface that prevents the main transmission component from rotating back.

20. The stopper as claimed in claim 18, characterized in that, The end of the support surface forms a limiting surface, and the second limiting part is a limiting groove formed on the limiting surface. The limiting groove cooperates with the end of the pushing surface to limit the movement. The limiting groove includes a second side surface near the support surface and a third side surface connected to the second side surface. The second side surface is a blocking surface that prevents the main drive component from rotating back, and the third side surface is an inclined surface.

21. The stopper as claimed in claim 17, characterized in that, The lower cover includes a sealing plate, the upper side of which protrudes upward to form two fixing posts fixedly connected to the first mounting portion on the transmission member, and the fixing posts are arranged opposite each other about the central axis of the sealing plate; or... The lower cover includes a sealing plate and a second mounting portion protruding from the center of the sealing plate. The second mounting portion passes through the lower opening and is fixedly connected to the lower part of the transmission member.

22. The stopper as claimed in claim 1, characterized in that, The knob is provided with a mounting groove, and the bottom of the mounting groove is provided with a fifth through hole. The body is provided with a mounting post at the center, and the mounting post is provided with a sixth through hole. The stopper also includes a thermometer, which includes a dial and a probe. The dial is housed in the mounting groove, and the probe passes through the fifth through hole of the knob, the sixth through hole of the mounting post, and the lower opening of the body in sequence and protrudes from the body.

23. A thermos, characterized in that, Includes the kettle stopper as described in any one of claims 1 to 22.

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