Kettle plug and heat preservation kettle

Abstract

The invention discloses a kettle plug and a heat preservation kettle, and relates to the technical field of heat preservation kettles.The kettle plug comprises a body, an upper cover, a rotary 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, by rotating the rotary knob, 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, and the situation that sundries in the water flow channel enter the heat preservation kettle is reduced; 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] The invention relates to the technical field of thermos pots, in particular to a pot stopper and a thermos pot. Background Art

[0002] A common thermos pot includes a pot body and a pot plug disposed on the pot body. A water flow channel is formed on the pot plug and runs through the pot plug. A sealing cover is disposed at the lower end of the water flow channel. When water needs to be poured, the sealing cover is opened, and the water in the thermos pot can flow from the thermos pot into the pot plug and flow out of the thermos pot through the water flow channel. When water does not need to be poured, the sealing cover is closed to prevent the water in the thermos pot from flowing into the pot plug. The pot plug is often controlled to open and close the sealing cover by a button or a toggle. When water does not need to be poured, the lower end of the water flow channel is sealed by the sealing cover, while the upper end of the water flow channel is still exposed. Not only is it easy for foreign matter to enter the water flow channel of the pot plug, but bacteria are also easily bred in the water flow channel, which makes it easy for the water in the thermos pot to be contaminated when it flows through the water flow channel. Summary of the invention

[0003] The main purpose of the present invention is to provide a pot stopper and a thermos pot, aiming to improve the problem that water in the thermos pot is easily contaminated when flowing through a water flow channel.

[0004] To achieve the above-mentioned purpose, the pot stopper provided by the present invention comprises:

[0005] A body, wherein a water flow channel is formed in the body, wherein the water flow channel forms an upper opening at the top of the body and a lower opening at the bottom of the body;

[0006] An upper cover, located on the upper part of the body and moving up and down along the axis direction of the body to open / close the upper opening of the body;

[0007] A knob, located above the upper cover;

[0008] a lower cover, located at the lower part of the body and moving up and down along the axis 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. As the knob rotates, the transmission assembly causes the upper cover and the lower cover to move up and down along the axis of the body.

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

[0011] A main transmission member, the main transmission member passes through the upper cover and is fixedly connected to the knob, and a first transmission structure is provided on the upper portion of the main transmission member;

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

[0013] In one embodiment, a mounting tube is provided in the middle of the body; the transmission assembly comprises:

[0014] A main transmission member, the main transmission member passes through the upper cover and is fixedly connected to the knob;

[0015] A guide structure, provided on the main transmission member and the upper cover, for allowing the upper cover to move up and down along the axis direction of the body when the knob rotates;

[0016] A first transmission structure is provided on a side wall of the mounting tube of the body;

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

[0018] In one embodiment, a first through hole is provided in the middle of the upper cover for the upper end of the main transmission member to pass through; the guide structure includes:

[0019] A limiting guide groove extending along the axis direction of the body; and

[0020] A protrusion, wherein the protrusion slides in the limiting guide groove along the axial direction of the body;

[0021] Wherein, one of the limiting guide groove and the protrusion is arranged on the outside of the main transmission member, and the other is arranged on the inner wall of the first through hole of the upper cover.

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

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

[0024] The recovery member provides power for the upper cover to move downward along the axis direction of the main body, and drives the second transmission structure and the first transmission structure to approach each other.

[0025] In one embodiment, the restoring member includes a first spring, which is located between the knob and the upper cover and provides a rebound force for the upper cover to move downward along the axis of the body.

[0026] In one embodiment, the recovery member includes a magnetic member provided on the upper cover and a magnetic member provided on the main body, and a magnetic attraction force is formed between the upper cover and the main body, so that the upper cover moves downward along the axis direction of the main body and falls on the main body.

[0027] In one embodiment, a limit plate is further provided on the main body, and the limit plate is located on the bottom side of the upper cover; the recovery member includes a guide column, a second spring sleeved on the guide column, and a limit block provided at the end of the guide column, and one end of the guide column away from the limit column passes through the limit plate and is connected to the upper cover, and the second spring is located between the limit plate and the limit 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 convex column, and the contact surface or the convex column is in sliding 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 one end of the wavy sliding surface close to the crest; and / or, the contact surface is connected to the second transition surface, and the second transition surface is located at one end of the contact surface close to 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 column, and the protruding column is located in the wave-shaped sliding groove.

[0032] In one embodiment, a mounting tube is provided in the middle of the body, and the water flow channel is formed between the outer wall of the mounting tube and the inner wall of the body; and / or, a first annular portion extending along the axial direction of the body and located outside the mounting tube is provided on the lower side of the upper cover; and / or,

[0033] A second annular portion is disposed on the upper side of the upper cover, and an escape space is formed on the bottom side of the knob, wherein at least a portion of the second annular portion is located in the escape space.

[0034] In one embodiment, a limit plate is provided on the mounting tube, and a second through hole is provided on the limit plate for the upper end of the main transmission member to pass through; a limit flange is also provided in the middle of the main transmission member, and the upper side of the limit flange forms a limit with the limit plate.

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

[0036] In one embodiment, a first annular portion extending along the axial direction of the body and located outside the mounting tube is provided on the lower side of the upper cover, and the second transmission structure is provided on the first annular portion.

[0037] In one embodiment, a third transmission structure is provided at the lower part of the main transmission member; the transmission assembly further comprises:

[0038] A slave transmission member, the slave transmission member comprising a first mounting portion fixedly connected to the lower cover, and a fourth transmission structure cooperating with the third transmission structure of the main transmission member; through the cooperation between 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;

[0039] The third spring provides power for the lower cover to move upward along the axis direction of the body.

[0040] 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 cooperates with the pushing surface;

[0041] The pushing surface extends along the axial direction of the main transmission member and along the circumferential direction of the main transmission member;

[0042] A second limiting portion is provided at the end of the supporting surface, and the second limiting portion limits the position between the third transmission structure and the fourth transmission structure; or, the fourth transmission structure includes a convex rod that contacts and cooperates with the pushing surface, and a third limiting portion is provided at the end of the pushing surface, and the third limiting portion limits the position between the third transmission structure and the fourth transmission structure.

[0043] In one embodiment, the pushing surface is connected to a first side surface, and the first side surface is a blocking surface for blocking the main transmission member from rotating backward.

[0044] In one embodiment, a limiting surface is formed at the end of the supporting surface, and the second limiting portion is a limiting groove formed on the limiting surface, and the limiting groove cooperates with the end of the pushing surface for limiting; the limiting groove includes a second side surface close to 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 transmission component from rotating back, and the third side surface is an inclined surface.

[0045] In one embodiment, the lower cover includes a sealing plate, the upper side of the sealing plate protrudes upward to form two fixing columns fixedly connected to the first mounting portion on the slave transmission member, and the fixing columns are arranged relative to the central axis of the sealing plate; or,

[0046] The lower cover includes a sealing plate and a second mounting portion protruding from the center of the sealing plate, wherein the second mounting portion passes through the lower opening and is fixedly connected to the lower portion of the slave transmission member.

[0047] In one embodiment, the knob is provided with a mounting groove, and a fifth through hole is provided at the bottom of the mounting groove, and the mounting column is provided with a sixth through hole; the kettle stopper also includes a thermometer, and the thermometer includes a dial and a probe, the dial is accommodated in the mounting groove, and the probe passes through the fifth through hole of the knob, the sixth through hole of the mounting column and the lower opening of the main body in sequence and is exposed outside the main body.

[0048] The present invention further provides a thermos pot, comprising a pot stopper, wherein the pot stopper comprises:

[0049] The plug body is formed with a water outlet hole through it;

[0050] An upper cover is installed on the top side of the plug body in a lifting manner, and the upper cover is arranged corresponding to the top opening of the water outlet hole, and is used to control the opening and closing of the top opening of the water outlet hole;

[0051] A lower cover is installed on the bottom side of the plug body in a lifting manner, and the lower cover is arranged corresponding to the bottom opening of the water outlet hole, and is used to control the closing of the bottom opening of the water outlet hole; and

[0052] A driving assembly is used to control the upper cover and the lower cover to move away from or closer to the plug body.

[0053] According to the technical solution of the present invention, after the kettle plug is installed on the thermos kettle, the driving assembly is controlled so that the upper cover and the lower cover are respectively moved away from the body, thereby opening the water flow channel, making it convenient to pour the water in the thermos kettle out of the outside of the thermos kettle from the water flow channel; after the pouring of water is stopped, the upper cover and the lower cover are respectively moved close to the plug body, so that the water flow channel is closed; the connection between the water flow channel and the inside of the thermos kettle is reduced, and the debris in the water flow channel is reduced from entering the thermos kettle, which overall improves the problem that the water in the thermos kettle is easily contaminated when flowing through the water flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0055] Figure 1 A schematic structural diagram of an embodiment of a pot stopper provided by the present invention;

[0056] Figure 2 for Figure 1 A schematic diagram of the structure when the kettle stopper is opened;

[0057] Figure 3 for Figure 1 Schematic diagram of the explosion structure of the pot plug;

[0058] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0059] Figure 5 for Figure 1 A schematic structural diagram of the second transmission structure in FIG.

[0060] Figure 6 A schematic structural diagram of another embodiment of a kettle plug provided by the present invention;

[0061] Figure 7 for Figure 6 Schematic diagram of the partial structure of the pot stopper;

[0062] Figure 8 for Figure 6 A schematic diagram of the structure of the guide structure in the pot stopper;

[0063] Fig. 9 for Figure 8 A partial cross-sectional schematic diagram of the upper cover in FIG.

[0064] Fig.10 A schematic structural diagram of another embodiment of a pot stopper provided by the present invention;

[0065] Fig.11 for Fig. 9 Schematic diagram of the connection of the upper cover in the middle pot stopper;

[0066] Fig.12 A schematic structural diagram of another embodiment of a kettle plug provided by the present invention;

[0067] Fig.13 Based Fig.12 Schematic diagram of the partial structure of the middle pot stopper;

[0068] Fig.14 A schematic structural diagram of another embodiment of a kettle plug provided by the present invention;

[0069] Fig.15 for Figure 1 A schematic diagram of the cross-sectional structure of the pot stopper;

[0070] Fig.16 for Figure 1 A schematic diagram of the cross-sectional structure of the pot stopper;

[0071] Fig.17 for Figure 2 A schematic diagram of the cross-sectional structure of the pot stopper;

[0072] Fig.18 for Figure 2 A schematic diagram of the cross-sectional structure of the pot stopper;

[0073] Fig.19 for Figure 3 A schematic diagram of the cross-sectional structure of the pot stopper;

[0074] Fig. 20 for Figure 1 A schematic diagram of the local connection of the pot stopper;

[0075] Fig.21 for Figure 1 Schematic diagram of the local connection of the pot stopper.

[0076] Description of Figure Numbers:

[0077] 1. Main body; 11. Water flow channel; 12. Limiting plate; 121. Second through hole; 13. Mounting column; 131. Sixth through hole; 2. Upper cover; 21. First through hole; 22. First annular portion; 23. Second annular portion; 3. Knob; 31. Avoidance space; 32. Mounting groove; 33. Fifth through hole; 34. First screw; 4. Lower cover; 41. Closing plate; 411. Fixed column; 42. Flexible sealing sleeve; 5. Transmission assembly; 51. Main transmission member; 511. First transmission structure; 5111. Wave-shaped sliding surface; 5112. First transition surface; 5113. Wave-shaped driving surface; 5114. Wave-shaped sliding groove; 512. Limiting flange; 513. Third transmission structure ;5131, pushing surface;5132, first side;52, second transmission structure;53, guiding structure;531, limiting guide groove;532, protrusion;54, recovery member;541, guide column;542, second spring;543, limiting block;55, slave transmission member;551, first mounting portion;552, fourth transmission structure;5521, supporting surface;5522, second limiting portion;5523, second side;5524, third side;553, second screw;56, third spring;6, thermometer;61, dial;62, probe;621, cover plate;7, mounting tube;71, connecting column;72, bottom plate;73, supporting column;731, third screw.

[0078] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0079] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0080] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0081] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0082] A common thermos pot includes a pot body and a pot plug disposed on the pot body. A water flow channel is formed on the pot plug and runs through the pot plug. A sealing cover is disposed at the lower end of the water flow channel. When water needs to be poured, the sealing cover is opened, and the water in the thermos pot can flow from the thermos pot into the pot plug and flow out of the thermos pot through the water flow channel. When water does not need to be poured, the sealing cover is closed to prevent the water in the thermos pot from flowing into the pot plug. The pot plug is often controlled to open and close the sealing cover by a button or a toggle. When water does not need to be poured, the lower end of the water flow channel is sealed by the sealing cover, while the upper end of the water flow channel is still exposed. Not only is it easy for foreign matter to enter the water flow channel of the pot plug, but bacteria are also easily bred in the water flow channel, which makes it easy for the water in the thermos pot to be contaminated when it flows through the water flow channel.

[0083] The invention provides a kettle plug assembled on a kettle body.

[0084] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 In one embodiment of the present invention,

[0085] The pot stopper includes:

[0086] A body 1, wherein a water flow channel 11 is formed in the body 1, wherein the water flow channel 11 forms an upper opening at the top of the body 1, and wherein the water flow channel 11 forms a lower opening at the bottom of the body 1;

[0087] An upper cover 2 is located on the upper part of the body 1 and moves up and down along the axis direction of the body 1 to open / close the upper opening of the body 1;

[0088] A knob 3, located above the upper cover 2;

[0089] A lower cover 4 is located at the lower part of the body 1 and moves up and down along the axis direction of the body 1 to open / close the lower opening of the body 1; and

[0090] The transmission assembly 5 has an upper end that passes through the upper cover 2 and is connected to the knob 3 . As the knob 3 rotates, the transmission assembly 5 causes the upper cover 2 and the lower cover 4 to move up and down along the axis of the body 1 .

[0091] The technical solution of the present invention can control the transmission assembly 5 to rotate with the knob 3 by rotating the knob 3, so that the upper cover 2 and the lower cover 4 can 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 can be moved away from each other, and the upper opening of the water flow channel 11 and the lower opening of the water flow channel 11 can be opened, thereby realizing the opening of the water flow channel 11. When the upper cover 2 moves downward and the lower cover 4 moves upward, the upper opening and the lower opening of the water flow channel 11 can be closed at the same time, reducing the risk of the water flow channel 11 being exposed to the outside, improving the sanitation problem in the water flow channel 11, and thus improving the problem that the water in the thermos pot is easily contaminated when passing through the water flow channel as a whole.

[0092] The upper cover 2 is lifted and lowered on the main body 1 . When the upper cover 2 is lifted and lowered, the upper cover 2 can rotate relative to the main body 1 or stop rotating.

[0093] Combined with reference Figure 3 , Figure 4 and Figure 5 In the first embodiment, the transmission assembly 5 includes:

[0094] A main transmission member 51, the main transmission member 51 passes through the upper cover 2 and is fixedly connected to the knob 3, and a first transmission structure 511 is provided on the upper portion of the main transmission member 51; and

[0095] The second transmission structure 52 is provided on the upper cover 2 and cooperates with the first transmission structure 511. As the knob 3 rotates, the first transmission structure 511 slides relatively away from the second transmission structure 52, pushing the upper cover 2 to move upward along the axial direction of the main body 1 until the knob 3 stops rotating.

[0096] When the knob 3 is rotated, the first transmission structure 511 and the second transmission structure 52 slide relatively away from each other, so that the upper cover 2 moves away from the first transmission structure 511 , thereby realizing the opening of the upper opening of the water flow channel 11 by the upper cover 2 .

[0097] Furthermore, a first screw 34 is connected between the main transmission member 51 and the knob 3 , and the main transmission member 51 is fixedly connected to the knob 3 via the first screw 34 .

[0098] One of the first transmission structure 511 and the second transmission structure 52 includes a wavy sliding surface 5111 , and the other includes a contact surface or a convex column, and the contact surface or the convex column is in sliding contact with the wavy sliding surface 5111 .

[0099] Optionally, in one embodiment, the first transmission structure 511 includes a wave-shaped sliding surface 5111 ; and the second transmission structure 52 includes a contact surface that is in sliding contact with the wave-shaped sliding surface 5111 .

[0100] The wavy sliding surface 5111 includes an ascending section and a descending section in each wavy sliding surface 5111. When the knob 3 is turned to make the first transmission structure 511 and the second transmission structure rotate relative to each other, the second transmission structure 52 can abut against and slide along the ascending section of the first transmission structure 511, so that the first transmission structure 511 and the second transmission structure 52 are separated from each other along the axis direction of the body 1, so that the upper cover 2 moves upward and the upper opening of the water flow channel is opened. Stopping the knob 3 can stop the upper cover 2 from ascending. When the knob 3 is turned, when the projection of the second transmission structure 52 is located at the descending section of the first transmission structure 511, the upper cover 2 can fall under the driving force of gravity or other external forces, and the second transmission structure 52 abuts against the descending section of the first transmission structure 511; when the second transmission structure 52 descends to the lowest point, the upper cover 2 stops descending, so that the upper cover 2 closes the upper opening of the water flow channel 11.

[0101] In another embodiment, the second transmission structure 52 includes a protruding column that is in sliding contact with the wavy sliding surface 5111. In this embodiment, the protruding column replaces the contact surface structure to slide relative to the wavy sliding surface 5111, thereby realizing the upward and downward movement of the upper cover. The principle of relative sliding between the protruding column and the wavy sliding surface 5111 is similar to the principle of relative sliding between the contact surface and the wavy sliding surface 5111.

[0102] Furthermore, the second transmission structure 52 is further provided with a second transition surface connected to the contact surface, and the second transition surface is located at one end of the contact surface close to the wavy sliding surface 5111 .

[0103] By rotating the knob 3 , when the second transition surface abuts against the crest of the wavy sliding surface 5111 , the upper cover 2 can be kept at the corresponding height position even if the knob 3 is rotated at a small angle.

[0104] Furthermore, the first transmission structure 511 further includes a first transition surface 5112, the first transition surface 5112 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 close to the wavy sliding surface 5111. Even if the knob 3 rotates at a small angle, the second transmission structure 52 can continue to abut against the first transition surface 5112, thereby keeping the upper cover 2 in a stable open state.

[0105] Specifically, the first transition surface 5112 is located between the ascending section and the descending section of the same wavy sliding surface 5111 , and the first transition surface 5112 connects the ascending section and the descending section of the same wavy sliding surface 5111 .

[0106] 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 relative movement between the first transmission structure 511 and the second transmission structure 52 can be reduced by the first limiting portion, so that the upper cover 2 remains in an open state. Specifically, the first limiting portion can be a groove provided on the first transition surface. When the second transmission structure 52 is against the groove, the knob 3 is stopped from rotating, so that the second transmission structure 52 can be prevented from naturally falling out of the groove, which is conducive to keeping the upper cover 2 in a stable open state.

[0107] Similarly, a first limiting portion may 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 .

[0108] See also Figure 6 , Figure 7 , Figure 8 and Fig. 9 In the second embodiment of the present application, a mounting tube 7 is provided in the middle of the body 1; the transmission assembly 5 includes:

[0109] A main transmission member 51, the main transmission member 51 passes through the upper cover 2 and is fixedly connected to the knob 3;

[0110] A guide structure 53 is provided on the main transmission member 51 and the upper cover 2, so that the upper cover 2 rotates with the knob 3 and moves up and down along the axis of the body 1;

[0111] The first transmission structure 511 is provided on the side wall of the mounting tube 7 of the body 1;

[0112] The second transmission structure 52 is provided on the upper cover 2 and is located on the outside of the mounting tube 7. The first transmission structure 511 slides relatively away from the second transmission structure 52 as the knob 3 rotates, pushing the upper cover 2 to move upward along the axial direction of the main body 1 until the knob 3 stops rotating.

[0113] The difference from the first embodiment is that the first transmission structure 511 and the second transmission structure 52 are arranged at different positions in this embodiment, and the guide structure 53 is arranged to realize that the upper cover 2 rotates with the knob 3, and when the upper cover 2 rotates with the knob 3, the second transmission structure 52 and the first transmission structure 511 can slide relatively away from each other along the axis direction of the body 1; when the knob 3 stops rotating, the second transmission structure 52 and the first transmission structure 511 stop rotating relatively. In addition, the specific structures of the first transmission structure 511 and the second transmission structure 52 in the second embodiment are implemented with reference to the first embodiment.

[0114] Furthermore, a first through hole 21 is provided in the middle of the upper cover 2 for the upper end of the main transmission member 51 to pass through. The guide structure 53 includes a limiting guide groove 531 and a protrusion 532, wherein the limiting guide groove 531 extends along the axial direction of the body 1; and the protrusion 532 slides in the limiting guide groove 531 along the axial direction of the body 1.

[0115] Optionally, the limiting guide groove 531 is arranged on the outer side of the main transmission member 51 and extends along the axial direction of the body 1, and the protrusion 532 is extended from the inner wall of the first through hole 21 of the upper cover 2. Similarly, the limiting guide groove 531 can be arranged 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 can be arranged on the outer side of the main transmission member 51.

[0116] The limiting guide groove 531 and the protrusion 532 ensure the relative movement of the upper cover 2 and the main transmission member 51 in the axial direction of the main body 1; when the knob 3 drives the main transmission member 51 to rotate synchronously, the limiting guide groove 531 and the protrusion 532 cooperate with each other, so that the upper cover 2 can rotate synchronously with the main transmission member 51, thereby realizing the synchronous rotation of the upper cover 2 with the knob 3.

[0117] 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, and 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 can make the upper cover 2 rise and move away from the body 1.

[0118] 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.

[0119] See also Figure 6 , Figure 7 , Figure 8 and Fig. 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.

[0120] When the knob 3 is rotated and the projection of the second transmission structure 52 on the wavy sliding surface 5111 is located at the descending section of the wavy sliding surface 5111, the upper cover 2 can move downward along the axial direction of the main body 1 under the drive of gravity or other external forces, and can fall on the main body 1, thereby realizing the closure of the upper opening of the water flow channel 11 by the upper cover 2.

[0121] See also Figure 3 , Figure 4 , Fig.10 and Fig.11 In another embodiment, the transmission assembly 5 further includes:

[0122] The recovery member 54 provides power for the upper cover 2 to move downward along the axis direction of the main body 1, and drives the second transmission structure 52 and the first transmission structure 511 to approach each other.

[0123] When the knob 3 is rotated to an appropriate position, that is, the projection of the boss on the wavy sliding surface 5111 is located on the descending section of the wavy sliding surface 5111, a downward force along the axial direction of the main body 1 is applied to the upper cover 2 through the recovery member 54, so that the upper cover 2 can stably close the upper opening of the water flow channel 11.

[0124] In one embodiment of the present 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 column, and the protruding column is located in the wave-shaped sliding groove.

[0125] See also Figure 3 , Figure 4 , Fig.10 and Fig.11The first transmission structure 511 includes a wavy sliding surface 5111 and a wavy driving surface 5113, both of which are formed on the main transmission member 51, and the wavy driving surface 5113 is parallel to the extension direction of the wavy sliding surface 5111, and a wavy sliding groove 5114 is formed between the wavy driving surface 5113 and the wavy sliding surface 5111, and the second transmission structure 52 includes a boss, which is fixedly connected to the upper cover 2 and is located in the wavy sliding groove 5114. When the knob 3 is rotated so that the knob 3 and the main transmission member 51 rotate, the boss can slide in the wavy sliding groove 5114, thereby limiting the movement of the upper cover 2 and realizing the rising or falling of the upper cover 2.

[0126] In one embodiment of the present application, please refer to Figure 3 , Figure 4 , Fig.12 and Fig.13 The recovery member 54 includes a first spring, which is located between the knob 3 and the upper cover 2 to provide a rebound force for the upper cover 2 to move downward along the axis direction of the body 1.

[0127] When the knob 3 is rotated and drives the upper cover 2 to move upward, the first spring can be compressed and deformed. When the upper cover 2 moves to the highest point, the deformation of the first spring reaches the maximum. When the knob 3 is rotated to an appropriate position, that is, the projection of the convex column on the wavy sliding surface 5111 is located at the descending section of the wavy sliding surface 5111, the spring recovers and stretches, and can apply downward pressure to the upper cover 2, so that the upper cover 2 falls and closes the upper opening of the water flow channel 11.

[0128] The first spring can be set as any elastic member, and only needs to be set between the knob 3 and the upper cover 2, and when the upper cover 2 moves upward, the first spring undergoes elastic deformation.

[0129] In one embodiment of the present application, please refer to Figure 3 , Figure 4 and Fig.14 The recovery member 54 includes a magnetic member provided on the upper cover 2 and a magnetic member provided on the main body 1; a magnetic attraction force is formed between the upper cover 2 and the main body 1, so that the upper cover 2 moves downward along the axial direction of the main body 1 and falls on the main body 1.

[0130] The magnetic attraction piece on the upper cover 2 cooperates with the magnetic attraction piece on the main body 1, so that the upper cover 2 and the main body 1 are attracted to each other and close to each other; when the knob 3 is rotated to an appropriate position, that is, the projection of the convex column on the wavy sliding surface 5111 is located at the descending section of the wavy sliding surface 5111. The magnetic attraction piece on the upper cover 2 cooperates with the magnetic attraction piece on the main body 1, so that the upper cover 2 can fall and close the upper opening of the water flow channel 11.

[0131] One of the magnetic attraction piece on the upper cover 2 and the magnetic attraction piece on the main body 1 can be set as a magnet, and the other can be set as a ferromagnetic metal piece; preferably, the magnetic attraction piece on the upper cover 2 and the magnetic attraction piece on the main body 1 are both magnets, and the magnetic attraction piece on the upper cover 2 and the magnetic attraction piece on the main body 1 are both permanent magnets, and the magnetic poles of the magnetic attraction piece on the upper cover 2 and the magnetic attraction piece on the main body 1 are opposite, thereby ensuring the mutual adsorption of the magnetic attraction piece on the upper cover 2 and the magnetic attraction piece on the main body 1.

[0132] Specifically, a plurality of magnetic suction members on the upper cover 2 and the main body 1 are arranged in a one-to-one correspondence around the axis of the main body 1 , thereby ensuring uniform adsorption between the upper cover 2 and the main body 1 .

[0133] In one embodiment of the present application, please refer to Figure 3 , Figure 4 , Fig.15 and Fig.16 The main body 1 is also provided with a limit plate 12, and the limit plate 12 is located on the bottom side of the upper cover 2; the recovery member 54 includes a guide column 541, a second spring 542 sleeved on the guide column 541, and a limit block 543 provided at the end of the guide column 541, and the end of the guide column 541 away from the limit column passes through the limit plate 12 and is connected to the upper cover 2, and the second spring 542 is located between the limit plate 12 and the limit block 543.

[0134] When the upper cover 2 moves away from the main body 1, the guide column 541 can slide and the limit block 543 can move with the guide column 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 convex column on the wavy sliding surface 5111 is located at the descending section of the wavy sliding surface 5111, the second spring 542 is extended, and the second spring 542 can drive the limit block 543 to drive the guide column 541 to move, so that the upper cover 2 is close to the main body 1 and covers the main body 1.

[0135] See also Fig.14 , Fig.15 , Fig.16 and Fig.17The guide column 541 includes a screw rod, the limit block 543 includes a nut of the screw, and the guide column 541 and the limit block 543 are integrally fixedly connected, and can also be replaced by a screw. Optionally, the guide column 541 is threadedly connected to the upper cover 2.

[0136] Preferably, two guide posts 541 are symmetrically arranged along the axis of the body 1 .

[0137] The main body 1 is provided with a mounting pipe 7 in the middle, and the water flow channel 11 is formed between the outer wall of the mounting pipe 7 and the inner wall of the main body 1; the lower side of the upper cover 2 is provided with a first annular portion 22 located outside the mounting pipe 7. When the upper cover 2 is opened, the first annular portion 22 moves to cover the mounting pipe 7, so as to reduce the exposure of the top of the mounting pipe 7.

[0138] Specifically, the main body 1 is tubular, and the mounting tube 7 is coaxial with the main body 1. A connecting column 71 is connected between the outer wall of the mounting tube 7 and the inner wall of the main body 1. The connection between the mounting tube 7 and the main body 1 is ensured by the connecting column 71. The mounting tube 7 makes the water flow channel 11 arranged in a ring shape, which can facilitate pouring the water in the thermos pot out of the thermos pot.

[0139] The upper side of the upper cover 2 is provided with a second annular portion 23, and the bottom side of the knob 3 is formed with an escape space 31, and the second annular portion 23 is at least partially located in the escape space 31. When the upper cover 2 moves away from the body 1, the escape space 31 can avoid the moving path of the second annular portion 23; the second annular portion 23 can shield the area inside the second annular portion 23.

[0140] Specifically, the avoidance area may be a avoidance groove provided at the bottom of the knob 3 .

[0141] See also Fig.13 , Fig.15 , Fig.16 and Fig.18 A limiting plate 12 is provided on the mounting tube 7, and a second through hole 121 is provided on the limiting plate 12 for the upper end of the main transmission member 51 to pass through; a limiting flange 512 is also provided in the middle of the main transmission member 51, and the upper side of the limiting flange 512 forms a limit with the limiting plate 12.

[0142] The limiting plate 12 can limit the movement of the active member along the axis of the body 1 . Specifically, the limiting flange 512 includes a limiting ring, which is integrally sleeved on the active member and has an outer diameter greater than that of the second through hole 121 .

[0143] Specifically, the limiting plate 12 is located in the mounting tube 7 , and the aperture 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 .

[0144] The mounting tube 7 is fixedly installed in the body 1 . A support column 73 is fixedly arranged in the fixing tube. The support column 73 extends along the axis direction of the body 1 . A third screw 731 is connected between the support column 73 and the limiting plate 12 .

[0145] See also Figure 4 , Fig.16 , Fig. 20 and Fig.21 The main transmission member 51 has a third transmission structure 513 at its lower part; the transmission assembly 5 also includes:

[0146] A slave transmission member 55, the slave transmission member 55 comprises a first mounting portion 551 fixedly connected to the lower cover 4, and a fourth transmission structure 552 cooperating with the third transmission structure 513 of the main transmission member 51; through the cooperation between 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;

[0147] The third spring 56 provides power for the lower cover 4 to move upward along the axis direction of the body 1 .

[0148] The movement of the main transmission member 51 is limited by the limiting plate 12, thereby ensuring that the main transmission member 51 provides power to the lower cover 4 away from the main body 1 through the third transmission structure 513 and the fourth transmission structure 552, which can make the bottom cover move away from the main body 1 and open the lower opening of the water flow channel 11.

[0149] 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.

[0150] Preferably, the third transmission structure 513 pushes the surface 5131 ; the fourth transmission structure 552 supports the surface 5521 , and a second limiting portion 5522 is provided at the end of the supporting surface 5521 , and the second limiting portion 5522 limits the third transmission structure 513 and the fourth transmission structure 552 .

[0151] When the knob 3 is rotated and drives the main transmission member 51 to rotate, the pushing surface 5131 can be pressed against the supporting surface 5521. The main transmission member 51 is continuously rotated, and the pushing surface 5131 cooperates with the supporting surface 5521 to push the lower cover 4 away from the main transmission member 51, so that the lower cover 4 is away from the main body 1, thereby opening the lower cover 4.

[0152] The fourth transmission structure 552 includes a protruding rod that contacts and cooperates with the pushing surface 5131 , and a third limiting portion is provided at the end of the pushing surface 5131 , and the third limiting portion limits the third transmission structure 513 and the fourth transmission structure 552 .

[0153] The third limiting portion may be a limiting groove formed on the pushing surface 5131 , and when the convex rod is located in the third limiting portion, the movement of the convex rod can be limited, thereby achieving the limitation between the third transmission structure 513 and the fourth transmission structure 552 .

[0154] See also Figure 4 , Fig.16 , Fig. 20 and Fig.21 The pushing surface 5131 may be an arcuate surface or an inclined surface, and along the rotation direction of the main transmission member 51, the distance between the pushing surface 5131 and the slave transmission member 55 gradually decreases; the supporting surface 5521 may be an arcuate surface or an inclined surface, and along the rotation direction of the main transmission member 51, the distance between the pushing surface 5131 and the slave transmission member 51 gradually decreases.

[0155] 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 for blocking the main transmission member 51 from rotating backward.

[0156] When the main transmission member 51 rotates in the reverse direction, the first side surface 5132 can abut against the fourth limiting member, thereby blocking the rotation of the main transmission member 51 .

[0157] A limiting surface is formed at the end of the supporting surface 5521, and the second limiting portion 5522 is a limiting groove formed on the limiting surface, and the limiting groove cooperates with the end of the pushing surface 5131 for limiting; the limiting groove includes a second side surface 5523 close to the supporting surface 5521 and a third side surface 5524 connected to the second side surface 5523, the second side surface 5523 is a blocking surface for preventing the main transmission member 51 from rotating back, and the third side surface 5524 is an inclined surface.

[0158] When the third transmission structure 513 abuts against the limiting groove, when the main transmission member 51 rotates in the direction, the third transmission structure 513 can abut against the blocking surface to limit the rotation of the main transmission member 51; when the main transmission member 51 rotates forward, the third transmission structure 513 can move along the surface of the third side surface 5524 to ensure that the third transmission structure 513 escapes from the second limiting portion 5522. The second limiting portion 5522 can reduce the natural sliding of the third transmission structure 513, ensure the relative rotation stop between the main transmission member 51 and the slave transmission member 55, and ensure that the lower cover 4 remains in the open state.

[0159] See also Figure 4 , Fig.16 , Fig. 20 and Fig.21 The lower cover 4 includes a sealing plate 41 , and the upper side of the sealing plate 41 protrudes upward to form two fixing columns 411 fixedly connected to the first mounting portion 551 on the slave transmission member 55 , and the fixing columns 411 are arranged relative to the central axis of the sealing plate 41 .

[0160] The fixed connection between the fixing column 411 and the first mounting portion 551 ensures the synchronous movement of the slave transmission member 55 and the lower cover 4. Specifically, a second screw 553 is threadedly connected between the fixing column 411 and the first mounting portion 551.

[0161] The top end of the fixing column 411 is at least partially located in the mounting tube 7 .

[0162] 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 portion of the slave transmission member 55 .

[0163] The fixed connection between the second mounting portion and the first mounting portion 551 ensures the synchronous movement of the slave transmission member 55 and the lower cover 4 .

[0164] A mounting post 13 is disposed at the center of the body 1 , and the transmission assembly 5 is at least partially sleeved on the mounting post 13 .

[0165] The installation column 13 can limit the rotation of the transmission assembly 5 and the movement along the axis of the body 1. Specifically, the main transmission member 51 and the slave transmission member 55 are both sleeved on the installation column 13, which ensures the stability of the rotation of the main transmission member 51 and the slave transmission member 55. The third spring 56 is sleeved on the installation column 13.

[0166] The driven transmission member 55 is annular and is slidably sleeved on the mounting post 13 .

[0167] The knob 3 is provided with a mounting groove 32, and a fifth through hole 33 is provided at the bottom of the mounting groove 32, and the mounting column 13 is provided with a sixth through hole 131; the pot stopper also includes a thermometer 6, and the thermometer 6 includes a dial 61 and a probe 62, the dial 61 is accommodated in the mounting groove 32, and the probe 62 passes through the fifth through hole 33 of the knob 3, the sixth through hole 131 of the mounting column 13 and the lower opening of the main body 1 in sequence and is exposed outside the main body 1.

[0168] By passing the probe 62 of the thermometer 6 through the pot stopper and then installing the pot stopper in the thermos pot, the probe 62 of the thermometer 6 can be inserted into the thermos pot, thereby detecting the water temperature in the thermos pot and displaying the water temperature on the dial 61.

[0169] A third through hole is formed at the center of the sealing plate 41 , and the probe 62 passes through the third through hole.

[0170] The pot stopper also includes a bottom plate 72, which is located in the mounting tube 7, and the circumference of the bottom plate 72 is sealed and connected to the inner side of the mounting tube 7. The bottom plate 72 can seal the bottom side of the second tube shell, thereby reducing the water in the thermos pot from entering the inner side of the second tube shell. The mounting column 13 is fixedly connected to the bottom plate 72.

[0171] The probe 62 passes through the bottom plate 72 , and the bottom plate 72 may be a flexible member, thereby ensuring a sealing effect between the bottom plate 72 and the probe 62 .

[0172] See also 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 body, the flexible sealing sleeve 42 can be respectively pressed against the edge of the water flow channel 11, thereby 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.

[0173] 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 main body 1. The upper cover 2 can be pressed against the mounting tube 7. The bottom of the upper cover 2 has a third protrusion, and the third protrusion is used to press against the top side of the mounting tube 7 to ensure the closing effect of the upper cover 2 on the water outlet.

[0174] A cover plate 621 is fixedly mounted on the probe 62 , and the cover plate 621 abuts against the nut of the first screw 34 , thereby reducing the contact between the first screw 34 and the machine body.

[0175] The present invention also provides a thermos pot, which includes a pot body and a pot plug. The specific structure of the pot plug refers to the above embodiment. Since the thermos pot adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. The top side of the pot body has a pot spout, and the pot plug is located in the pot spout of the pot body.

[0176] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pot stopper, characterized in that: include: A body, wherein a water flow channel is formed in the body, wherein the water flow channel forms an upper opening at the top of the body and a lower opening at the bottom of the body; An upper cover, located on the upper part of the body and moving up and down along the axis direction of the body to open / close the upper opening of the body; A knob, located above the upper cover; A lower cover, located at the lower part of the body and moving up and down along the axis direction 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. As the knob rotates, the transmission assembly causes the upper cover and the lower cover to move up and down along the axis of the body.

2. The pot stopper according to claim 1, characterized in that: The transmission assembly comprises: A main transmission member, the main transmission member passes through the upper cover and is fixedly connected to the knob, and a first transmission structure is provided on the upper portion of the main transmission member; and The second transmission structure is arranged on the upper cover and cooperates with the first transmission structure. As the knob rotates, the first transmission structure slides relatively away from the second transmission structure to push the upper cover to move upward along the axial direction of the body until the knob stops rotating.

3. The pot stopper according to claim 1, characterized in that: The middle part of the body is provided with a mounting tube; the transmission assembly comprises: A main transmission member, the main transmission member passes through the upper cover and is fixedly connected to the knob; A guide structure, provided on the main transmission member and the upper cover, for allowing the upper cover to move up and down along the axis direction of the body when the knob rotates; A first transmission structure is provided on a side wall of the mounting tube of the body; The second transmission structure is arranged on the upper cover and located outside the mounting tube. The first transmission structure slides relatively away from the second transmission structure as the knob rotates, pushing the upper cover to move upward along the axial direction of the body until the knob stops rotating.

4. The pot stopper according to claim 3, characterized in that: The middle part of the upper cover is provided with a first through hole for the upper end of the main transmission member to pass through; the guide structure comprises: A limiting guide groove extending along the axis direction of the body; and A protrusion, wherein the protrusion slides in the limiting guide groove along the axial direction of the body; Wherein, one of the limiting guide groove and the protrusion is arranged on the outside of the main transmission member, and the other is arranged on the inner wall of the first through hole of the upper cover.

5. The pot stopper according to any one of claims 2 to 4, characterized in that: The first transmission structure slides relatively close to the second transmission structure as the knob rotates, and the upper cover moves downward along the axis direction of the body and falls on the body.

6. The pot stopper according to any one of claims 2 to 4, characterized in that: The transmission assembly also includes: The recovery member provides power for the upper cover to move downward along the axis direction of the main body, and drives the second transmission structure and the first transmission structure to approach each other.

7. The pot stopper according to claim 6, characterized in that: The recovery member comprises a first spring, which is located between the knob and the upper cover and provides a rebound force for the upper cover to move downward along the axis direction of the body.

8. The pot stopper according to claim 6, characterized in that: The recovery member includes a magnetic member disposed on the upper cover and a magnetic member disposed on the main body. A magnetic attraction force is formed between the upper cover and the main body, so that the upper cover moves downward along the axis direction of the main body and falls on the main body.

9. The pot stopper according to claim 6, characterized in that: A limit plate is also provided on the main body, and the limit plate is located on the bottom side of the upper cover; the recovery member includes a guide column, a second spring sleeved on the guide column, and a limit block provided at the end of the guide column, and one end of the guide column away from the limit column passes through the limit plate and is connected to the upper cover, and the second spring is located between the limit plate and the limit block.

10. The pot stopper according to 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 convex column, and the contact surface or the convex column is in sliding contact with the wavy sliding surface.

11. The pot stopper according to claim 10, characterized in that: The wavy sliding surface is connected to the first transition surface, and the first transition surface is located at one end of the wavy sliding surface close to the wave crest; and / or the contact surface is connected to the second transition surface, and the second transition surface is located at one end of the contact surface close to the wavy sliding surface.

12. The pot stopper according to claim 11, characterized in that: A first limiting portion is disposed 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 pot stopper according to 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 column, and the protruding column is located in the wave-shaped sliding groove.

14. The pot stopper according to claim 1, characterized in that: A mounting tube is provided in the middle of the body, and the water flow channel is formed between the outer wall of the mounting tube and the inner wall of the 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, A second annular portion is disposed on the upper side of the upper cover, and an escape space is formed on the bottom side of the knob, wherein at least a portion of the second annular portion is located in the escape space.

15. The pot stopper according to claim 2 or 3, characterized in that: The mounting tube is provided with a limit plate, and the limit plate is provided with a second through hole for the upper end of the main transmission member to pass through; the middle of the main transmission member is also provided with a limit flange, and the upper side of the limit flange forms a limit with the limit plate.

16. The pot stopper according to claim 3, characterized in that: A first annular portion extending along the axial direction of the main body and located outside the mounting tube is provided on the lower side of the upper cover, and the second transmission structure is provided on the first annular portion.

17. The pot stopper according to any one of claims 2 to 4, characterized in that: The lower part of the main transmission member is provided with a third transmission structure; the transmission assembly also includes: A slave transmission member, the slave transmission member comprising a first mounting portion fixedly connected to the lower cover, and a fourth transmission structure cooperating with the third transmission structure of the main transmission member; through the cooperation between 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 direction of the body.

18. The pot stopper according to claim 17, characterized in that: One of the third transmission structure and the fourth transmission structure comprises a pushing surface, and the other comprises a supporting surface contacting and cooperating with the pushing surface; The pushing surface extends along the axial direction of the main transmission member and along the circumferential direction of the main transmission member; A second limiting portion is provided at the end of the supporting surface, and the second limiting portion limits the position between the third transmission structure and the fourth transmission structure; or, the fourth transmission structure includes a convex rod that contacts and cooperates with the pushing surface, and a third limiting portion is provided at the end of the pushing surface, and the third limiting portion limits the position between the third transmission structure and the fourth transmission structure.

19. The pot stopper according to claim 18, characterized in that: The pushing surface is connected to a first side surface, and the first side surface is a blocking surface for blocking the main transmission member from rotating backward.

20. The pot stopper according to claim 18, characterized in that: The end of the supporting surface forms a limiting surface, and the second limiting portion is a limiting groove formed on the limiting surface, and the limiting groove cooperates with the end of the pushing surface for limiting; the limiting groove includes a second side surface close to 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 transmission component from rotating back, and the third side surface is an inclined surface.

21. The pot stopper according to claim 1, characterized in that: The lower cover comprises a sealing plate, the upper side of the sealing plate protrudes upward to form two fixing columns which are fixedly connected to the first mounting portion on the slave transmission member, and the fixing columns are arranged relative to 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, wherein the second mounting portion passes through the lower opening and is fixedly connected to the lower portion of the slave transmission member.

22. The pot stopper according to claim 1, characterized in that: The knob is provided with a mounting groove, and a fifth through hole is provided at the bottom of the mounting groove, and the mounting column is provided with a sixth through hole; the kettle stopper also includes a thermometer, and the thermometer includes a dial and a probe, the dial is accommodated in the mounting groove, and the probe passes through the fifth through hole of the knob, the sixth through hole of the mounting column and the lower opening of the main body in sequence and is exposed outside the main body.

23. A thermos pot, characterized in that: Comprising a pot stopper as described in any one of claims 1 to 22.

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