Thermal pot cover and thermal pot

Abstract

The present application relates to a kind of thermos flask cover and thermos flask, including cover body, cover body includes upper cover body and lower cover body, lower cover body upper portion is formed with valve body wall, fluid passage, water injection valve and air inlet valve are equipped on valve body wall;Air inlet valve is set to the top of valve body wall, water injection valve is rotatably connected air inlet valve;Water injection valve seals the liquid outlet of fluid passage, and can be moved up and down at the liquid outlet to open or close the liquid outlet, while opening or closing air inlet valve;When cover body is in closed state, water injection valve contacts with the liquid outlet and closes the liquid outlet, while closing air inlet valve;When cover body is in open state, water injection valve is separated from the liquid outlet and opens the liquid outlet, while opening air inlet valve.The present application is gradually contracted as upper large lower small due to lower cover body, water injection valve is set to the upper portion of lower cover body, when sealing here, the pulling force required to seal upward is relatively small, sealing is relatively easy, sealing is more firm, and it is more labor-saving to operate, to improve the heat preservation effect.

Description

TECHNICAL FIELD

[0001] The present application relates to a thermos flask and a thermos flask lid. BACKGROUND

[0002] The water injection valve of the conventional thermos flask lid is installed at the bottom opening of the lower lid, and the diameter of the opening is relatively large, which is not easy to seal, and the stability of the thermos is not good. In addition, the upward sealing force is relatively large, and a large force is required to press the lid, which is laborious. SUMMARY

[0003] The present application provides a thermos flask and a thermos flask lid to overcome the defects of poor stability and laborious operation of the conventional thermos flask lid.

[0004] To solve the above technical problems, the present application is realized by the following technical scheme:

[0005] A thermos flask lid comprises a lid body, the lid body comprises an upper lid body and a lower lid body, a valve body wall is formed on the upper part of the lower lid body, a fluid passage, a water injection valve and an air inlet valve are arranged on the valve body wall, the air inlet valve is arranged at the top of the valve body wall, the water injection valve is rotatably connected to the air inlet valve, the water injection valve seals the liquid outlet of the fluid passage and can move up and down at the liquid outlet to open or close the liquid outlet, and the air inlet valve is opened or closed at the same time, when the lid body is in a closed state, the water injection valve contacts the liquid outlet and closes the liquid outlet, and the air inlet valve is closed at the same time, when the lid body is in an open state, the water injection valve is separated from the liquid outlet and opens the liquid outlet, and the air inlet valve is opened at the same time.

[0006] As a preferred embodiment, the air inlet valve can move up and down in the valve body wall, comprising an air inlet valve body, an air inlet valve sealing ring arranged on the air inlet valve body, an air inlet valve rod arranged in the air inlet valve body, the bottom of the air inlet valve body is connected to the water injection valve, an air inlet valve return spring on the air inlet valve rod, and an air inlet valve sealing ring fixed to the upper part of the air inlet valve rod.

[0007] As a preferred embodiment, the water injection valve comprises a water injection valve rod, a valve support, a water injection valve pad, a water injection return spring and a valve rod cap, the water injection valve rod is movably assembled in the valve body wall, the water injection valve rod is connected to the valve rod cap, the water injection return spring is assembled on the water injection valve rod and limited between the valve body wall and the valve rod cap, the water injection valve rod is slidably connected to the valve support, the valve support is rotatably connected to the air inlet valve, the water injection valve pad is a soft silica gel part, the water injection valve pad comprises a concave or convex arc surface, the arc surface is matched with the liquid outlet and used to open or close the liquid outlet.

[0008] As preferred, the upper part of the water injection valve rod is provided with a mounting column, the top of the mounting column is provided with a blocking part, the circumferential side of the mounting column is provided with a clamping part and a mounting wall, the clamping part and the mounting wall are arranged in a staggered manner and are perpendicular to the radial direction of the mounting column, the middle part of the water injection valve rod is provided with a valve rod sealing ring groove, the valve rod sealing ring groove is provided with a valve rod sealing ring, and the lower part of the water injection valve rod is provided with a sliding wall and a sliding shaft, and the two sides of the sliding shaft are higher than the outer side wall of the sliding wall.

[0009] As preferred, the valve support includes a sliding groove, a front protrusion arranged at one end of the sliding groove, and a rear protrusion and an outer rotating shaft arranged at the other end of the sliding groove, the water injection valve rod is slidingly arranged in the sliding groove, the water injection valve pad is arranged on the front protrusion, and the valve support is rotationally connected with the air inlet valve through the outer rotating shaft and lifts the air inlet valve through the rear protrusion.

[0010] As preferred, the valve support includes a T-shaped groove, the bottom side of the T-shaped groove is provided with a sliding bottom wall and a sliding upper wall, the T-shaped groove and the sliding bottom wall and the sliding upper wall together form a sliding groove, the T-shaped groove includes a mounting part and a sliding part, the mounting part and the sliding part are arranged in a perpendicular manner, and the sliding shaft of the water injection valve rod is mounted in the mounting part and can slide along the sliding part.

[0011] As preferred, the upper cover body and the lower cover body are movably connected in the up-down direction, the end portions of the upper cover body and the lower cover body are connected through elastic buckling, and the circumferential sides of the upper cover body and the lower cover body are connected through rib positioning.

[0012] As preferred, the upper cover body includes an upper cover, an operating handle, an operating button and a connecting piece, the operating handle is rotatably arranged on the upper cover, the operating button is pressingly arranged on the upper cover, the connecting piece is movably arranged on the upper cover, one end of the connecting piece is slidingly connected with the top of the water injection valve, and the other end of the connecting piece is abutted with the operating handle or the operating button.

[0013] As preferred, the connecting piece is provided with an upwardly protruding connecting column in the center of the main body, connecting shafts and columnar protruding parts are arranged on the two sides of the connecting column, the columnar protruding parts are connected with the main body of the connecting column, and the lower part of the main body of the connecting piece is provided with an inwardly recessed connecting surface.

[0014] The water injection valve and the air inlet valve are arranged in an interactive manner, when the water injection valve is operated, the air inlet valve is also operated, when the water injection valve is stopped, the air inlet valve is also stopped synchronously, so that the synchronization and reliability of operation are ensured, when the heat preservation kettle is in a closed state, the water injection valve contacts and closes the liquid outlet, and the air inlet valve is also closed, when the heat preservation kettle is in an open state, the water injection valve is separated from the liquid outlet and opens the liquid outlet, and the air inlet valve is also opened.

[0015] In summary, the advantages of the present application are:

[0016] Because the lower lid tapers gradually from top to bottom, the water inlet valve is located at the top of the lower lid, while the lower lid is located at the bottom opening. The diameter of the water inlet valve and the cylinder around the body is much smaller. When sealing this area, the upward pulling force required for sealing is relatively small, and the driving force on the water inlet valve is also small, making sealing easier, more secure, and easier, thus improving the heat preservation effect. An air inlet valve is provided to allow air to circulate inside the body of the pot, making it smoother when pouring or collecting liquid. The air inlet valve is located at the top of the valve body wall on the upper part of the lower lid, which is a high position. When it is assembled with the pot to collect liquid, liquid is less likely to seep into the lid. In addition, the air inlet valve and the water inlet valve are designed to interact. When the water inlet valve is operated, the air inlet valve also operates, and when the water inlet valve stops, the air inlet valve also stops synchronously, ensuring the synchronicity and reliability of operation.

[0017] Another object of the present invention is to provide a thermos, including a body, a spout, and a lid, wherein the lower lid of the lid and the spout are screwed together by a threaded structure, the opening of the body is provided with a mouth sealing ring, and the spout is fastened to the body at the opening by pressing the mouth sealing ring. The spout is provided with an internal thread that engages with the external thread on the lower lid, and the spout includes a handle that extends rearward and downward, and a pouring spout for pouring or collecting liquid; the body includes an outer liner, an inner liner, and a vacuum insulation layer formed by the outer liner and the inner liner.

[0018] This invention can be used to collect liquids and keep them warm. It is suitable for liquids that need to be kept warm, such as those in coffee machines. The coffee outlet of the coffee machine can be used to collect and keep coffee warm. After the coffee is taken out of the coffee machine and flows into the pot, it can be automatically sealed and kept warm. The heat preservation effect is good, and the coffee liquid is not easy to seep into the pot lid. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the lid of the kettle in the closed state in this invention;

[0020] Figure 2 This is a schematic diagram of the lid of the kettle in the open state in this invention;

[0021] Figure 3 This is a schematic diagram of the structure of the present invention;

[0022] Figure 4 This is a cross-sectional view of the lid of the kettle in the closed state in this invention;

[0023] Figure 5 This is a cross-sectional view of the lid of the kettle in the open state in this invention;

[0024] Figure 6 This is a perspective view of the assembly of the operation button and the connecting component in this invention;

[0025] Figure 7 This is a perspective view of the connecting component in this invention;

[0026] Figure 8 This is a perspective view of the assembly of the operation button and the connecting component in this invention;

[0027] Figure 9 This is a perspective view of the water injection valve assembly in this invention;

[0028] Figure 10 This is a perspective view of the intake valve assembly in this invention;

[0029] Figure 11 This is a perspective view of the lower cover assembly in this invention;

[0030] Figure 12 This is a perspective view of the assembly of the water injection valve stem and valve stem cap in this invention. Detailed Implementation

[0031] To more clearly illustrate the overall concept of the present invention, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," and "bottom," etc., indicating orientation or positional relationships, are based solely on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0032] A type of thermos lid, such as Figures 4-12 As shown, the kettle includes a lid body 13, which comprises a lower lid body 21 and an upper lid body 14. The upper lid body 14 is installed on the upper side of the lower lid body 21 and can be easily removed from the lower lid body 21 for cleaning. A valve body wall 2102 is formed on the upper part of the lower lid body 21. The valve body wall 2102 is provided with a fluid channel 22, a water injection valve 24, and an air inlet valve 32. The air inlet valve 32 is located at the top of the valve body wall, and the water injection valve 24 is rotatably connected to the air inlet valve 32. The water injection valve 24 seals the liquid outlet of the fluid channel 22 and can move up and down at the liquid outlet to open or close the liquid outlet, while simultaneously opening or closing the air inlet valve 32. When the kettle lid is in the closed state, the water injection valve 24 contacts the liquid outlet and closes the liquid outlet, while simultaneously closing the air inlet valve 32. When the kettle lid is in the open state, the water injection valve 24 disengages from the liquid outlet and opens the liquid outlet, while simultaneously opening the air inlet valve 32.

[0033] Because the lower lid gradually tapers from top to bottom, the water inlet valve 24 is located on the upper part of the lower lid. Compared to the lower lid with its opening at the bottom, the diameter of the cylinder 24 is much smaller. Therefore, sealing this area requires less upward force, resulting in a less driving force on the water inlet valve 24, making sealing easier, more secure, and easier, thus improving heat retention. An air inlet valve 32 allows air to circulate within the kettle, making pouring or collecting liquids smoother. Located on the upper part of the lower lid and at the top of the valve body wall, its high position prevents liquid from easily seeping into the lid when used to collect liquids. Furthermore, the air inlet valve 32 and the water inlet valve 24 are interactive; when the water inlet valve 24 operates, the air inlet valve 32 operates accordingly, and when the water inlet valve 24 stops, the air inlet valve 32 also stops synchronously, ensuring synchronicity and reliability of operation.

[0034] like Figure 4 In this embodiment, the lower cover 20 includes a lower cover 21. The lower side of the outer peripheral wall of the lower cover 21 is provided with an upper groove 2109 and a lower groove 2110. An external thread 2105 is provided between the upper groove 2109 and the lower groove 2110. An upper sealing ring 39 is installed in the upper groove 2109, and a lower sealing ring 40 is installed in the lower groove 2110.

[0035] Combination Figure 4 and Figure 11 As shown, a valve stem 2103 is provided at or near the center of the inner bottom of the lower cover 21. A through valve stem wall 2104 is provided inside the valve stem 2103. An inclined and straight fluid channel 22 is provided on the front side of the valve stem 2103. Liquid flows into or out of the pot body 2 through the fluid channel 22. An inner buckle 2106 is provided on the upper inner wall of the opening of the fluid channel 22. Protruding ribs 2108 higher than the side walls are provided on both sides of the inner buckle 2106. An outlet 11 is provided extending inward from the fluid channel 22. A valve body wall 2102 is provided on the rear side of the valve stem 2103.

[0036] The water injection valve 24 is inserted into the valve body wall 2102. The water injection valve 24 includes a water injection valve stem 27, a valve stem cap 28, and a water injection return spring 29. The water injection valve stem 27 passes through the valve stem post 2103 of the lower cover. An upward force is applied by the water injection return spring 29 on the outside of the valve stem post 2103 on the lower cover, which pulls the water injection valve 24 to rotate upward. The water injection valve pad 26 on the front protrusion of the water injection valve 24 abuts against the liquid outlet to form a seal.

[0037] Combination Figure 4 and Figure 9As shown, the water injection valve 24 includes a valve bracket 25 and a water injection valve pad 26. The valve bracket 25 is provided with a T-shaped groove 2502, which is composed of a mounting part 2504 and a sliding part 2503. The mounting part 2504 and the sliding part 2503 are vertically distributed. The bottom side of the T-shaped groove 2502 is provided with a sliding bottom wall 2507 and a sliding upper wall, which together with the T-shaped groove 2502 form a sliding groove. The valve bracket 25 is provided with a front protrusion 2501 along the sliding part 2503 side for mounting the water injection valve pad 26. The valve bracket 25 is provided with an outer rotating shaft 2505 and a rear protrusion 2506 on the mounting part 2504 side. The rear protrusion 2506 is located at the end of the valve bracket 25.

[0038] Among them, the water injection valve pad 26 is a soft silicone part. The water injection valve pad 26 has a concave arc surface and is installed on the upper wall side of the front protrusion 2501 of the valve bracket 25.

[0039] like Figure 12 As shown, the upper part of the water injection valve stem 27 is provided with a mounting post 2703, and the upper part of the mounting post 2703 is provided with a blocking part 2701. The top of the blocking part 2701 is arc-shaped. The two sides of the middle of the mounting post 2703 are provided with locking parts 2702. The two sides of the locking part are provided with mounting walls 2704. The distance between the two mounting walls 2704 is less than the outer diameter of the mounting post 2703. The middle part of the water injection valve stem 27 is provided with a valve stem sealing ring groove 2705. The valve stem sealing ring 30 is installed in the valve stem sealing ring groove 2705. The lower bottom side of the water injection valve stem 27 is provided with a sliding wall 2706 and a sliding shaft 2707. The two sides of the sliding shaft 2707 are higher than the outer walls of the sliding wall 2706.

[0040] The valve stem cap 28 is cylindrical with protrusions around it to form a cap shape. The valve stem cap 28 has a mounting hole 2801 at its center. The mounting hole 2801 has a rectangular directional groove 2803. The length of the directional groove 2803 is greater than the diameter of the mounting hole. A fitting hole 2802 is provided on one side of the mounting hole 2801. The fitting hole 2802 is perpendicular to the directional groove 2803. An anti-slip wall 2804 is provided at the intersection of the mounting hole 2801 and the fitting hole 2802.

[0041] The mounting post 2703 of the water injection valve stem 27 is fitted with the valve stem cap 28. A water injection return spring 29 is installed between the valve stem cap 28 and the valve stem post 2103 of the lower cover 21, serving as the force-applying component of the water injection valve.

[0042] Combination Figure 4 and Figure 10As shown, the upper side wall of the valve body 2102 has a through air inlet valve hole 38, and the air inlet valve is located on the air inlet valve hole 38. The function of the air inlet valve 32 is to allow air to flow inside the thermos when the lid is assembled with the thermos, so that the thermos can be poured or collected more smoothly. The intake valve 32 includes an intake valve body 33, an intake valve stem 34, an intake valve return spring 35, an intake valve sealing gasket 36, and an intake valve sealing ring 37. The intake valve body 33 is provided with a sealing ring groove 3304. Support arms 3302 are provided on both sides of the bottom side of the intake valve body 33 along the axis. The support arms 3302 are provided with a pivot hole 3303. The interior of the intake valve body 33 is provided with a valve body cavity 3308. A sealing part 3306 is provided on the upper side of the intake valve body 33. The sealing part 3306 has an intake hole 3307 that communicates with the valve body cavity 3308. Elastic buckles 3305 are provided on both sides of the sealing part 3306. The elastic buckles 3305 pass through the intake valve hole 38 at the top of the valve body wall 2102 and are fastened to the upper side wall of the fixing part 2107.

[0043] The upper side of the intake valve stem 34 is provided with a sealing gasket groove 3402, and the lower side of the intake valve stem 34 is provided with a valve stem bottom 3401, which is a flat surface. The intake valve sealing ring 37 is installed in the sealing ring groove 3304. The intake valve return spring 35 is an elastic body, which is installed on the intake valve stem 34 and in the valve body cavity 3308 of the intake valve body 33. The sealing gasket groove 3402 of the intake valve stem 34 passes through the intake hole 3307 and is fitted with the intake valve sealing gasket 36, which abuts against the upper side of the sealing part 3306 of the intake valve body 33 for sealing.

[0044] Combination Figure 4 , Figure 9 , Figure 10 As shown, the outer rotating shaft 2505 of the valve bracket 25 of the water injection valve 24 is assembled in the rotating shaft hole 3303 of the air intake valve body 33 of the air intake valve 32. The water injection valve 24 can rotate around the air intake valve 32. The sliding shaft 2707 of the water injection valve rod 27 is inserted into the mounting part 2504 of the valve bracket 25 and pushed into the sliding part 2503 side.

[0045] The water injection valve 24 is inserted into the valve body wall 2102 of the lower cover 21. The elastic buckle 3305 on the air intake valve body 33 passes through the air intake valve hole at the top of the valve body wall 2102 of the lower cover 21 and is fastened to the upper side wall of the fixing part 2107. At the same time, the water injection valve stem 27 passes through the valve body wall 2102 of the lower cover 21. The mounting post 2703 of the water injection valve stem 27 is fitted with the valve stem cap 28. A water injection return spring 29 is installed between the valve stem cap 28 and the valve stem post 2103 of the lower cover 21 as the force-applying component of the water injection valve.

[0046] Combination Figure 4 and Figure 8As shown, the upper cover 14 includes an upper cover 15, an operating handle 16, an operating button 17, and a connector 18. The upper cover 15 has a button hole 1508 at its center. The outer wall of the front side of the button hole 1508 has an outwardly extending portion 1506. The inner side wall of the outerly extending portion 1506 has connecting walls 1501 on both sides. The connecting wall 1501 has a handle pivot hole 1502. The upper side of the pivot hole 1502 has a guide groove 1503 for the pivot to slide into. The two side platform surfaces of the upper cover 15 extend upward into arc-shaped walls 1504. The outer side wall of the arc-shaped wall 1504 has a groove 1505. A handle through hole 1507 is opened on the rear side of the button hole 1508. The outer snap part 1506 of the upper cover 15 is aligned with the inner snap part 2106 of the lower cover 21 and slides into the inner snap part 2106. Using this snap-fit ​​point as a fulcrum, the arc-shaped walls 1504 on both sides of the upper cover 15 are aligned with the inner wall of the lower cover 21 and pressed down, so that the protruding rib 2108 of the lower cover 21 is completely slid into the groove 1505 of the upper cover 15, so that the upper cover 15 and the lower cover 21 are in a snap-fit ​​state.

[0047] like Figure 6 As shown, the operation button 17 is a contact element for applying external force. Its inner bottom wall has a hollow connecting post 1701 protruding. The two side walls of the connecting post 1701 are provided with "C"-shaped fixing holes 1702. The "C"-shaped fixing holes 1702 have a certain degree of elasticity.

[0048] like Figure 6 and Figure 7 As shown, the main body of the connector 18 is disc-shaped, with a concave arc surface 1801 on the lower side of its bottom. The center of the main body of the connector 18 has an upward-protruding connecting post 1802. The two sides of the connecting post 1802 are respectively provided with a connecting shaft 1803 and a columnar protrusion 1804. The columnar protrusion 1804 is connected to the upper side of the bottom of the main body.

[0049] Combination Figure 4 and Figure 8 As shown, the operating handle 16 has a hollow protruding working part 1605, and the inner wall of the top of the working part 1605 has a conductive surface 1603. The operating handle 16 extends forward along the two side walls to form a forearm part 1601. The inner side of the end of the forearm part 1601 on both sides is provided with an inner rotating shaft 1602. The operating handle 1604 extends from the rear side wall of the operating handle 16.

[0050] like Figure 4 , Figure 5 and Figure 8The operation button 17 is inserted into the button hole 1508 of the upper cover 15, and the operation button 17 can slide up and down within the button hole 1508; the operation handle 1604 of the operation handle 16 passes through the handle through hole 1507 of the upper cover 15, and the inner rotating shaft 1602 on the other side of the operation handle 16 is aligned with the guide groove 1503 of the upper cover 15 and slides into the handle rotating shaft hole 1502, so the operation handle 16 can rotate around the rotating shaft hole 1502; the columnar protrusion 1804 of the connecting member 18 faces the conductive surface 160 of the operation handle 16. 3. The connecting shaft 1803 of the connector 18 is aligned with the "C"-shaped fixing hole 1702 of the operation button 17 and is pressed down towards the operation button 17, so that the connecting shaft 1803 is squeezed into the "C"-shaped fixing hole 1702 of the operation button 17. The connector 18 can rotate in the "C"-shaped fixing hole 1702 of the operation button 17. The columnar protrusion 1804 of the connector 18 abuts against the transmission surface 1603 of the operation handle 16, so that the external force applied by the operation handle 16 can be transmitted to the connector 18.

[0051] Another embodiment of the present invention provides a thermos, such as Figures 1-3 As shown, the kettle includes a kettle body, a spout, and the aforementioned kettle lid. The lower lid of the kettle lid and the spout are screwed together using a threaded structure. The kettle lid and the spout are sealed by screwing clockwise through the internal thread 802, and can be removed by rotating counterclockwise. The upper sealing ring 39 and the lower sealing ring 40 of the kettle lid 13 complete the seal with the kettle body. The upper sealing ring 39 and the lower sealing ring 40 are installed in the upper groove 2109 and the lower groove 2110 of the lower lid.

[0052] like Figure 2 and Figure 3 As shown, the kettle body 2 includes an outer liner 3, an inner liner 4, and a vacuum isolation layer 5 formed in the middle. The bottom side of the kettle body 2 is cylindrical, and the upper side gradually becomes conical to the opening 201. A kettle mouth sealing ring 41 is fitted on the opening 201 of the kettle body 2. The spout 8 is fastened to the kettle body 2 at the opening 201 by pressing the kettle mouth sealing ring 41, thus sealing the opening of the kettle body. A protruding part 6 is provided on the lower side of the opening 201. The lower sealing ring 40 of the kettle lid 2 abuts against the protruding part 6 to form a sealed state.

[0053] Work process:

[0054] How to open a thermos:

[0055] 1) When the thermos is placed in the coffee machine, the coffee machine presses down the operation button 17. The operation button 17 and the connecting part 18 move downward together. At this time, the arc surface 1801 of the connecting part 18 abuts against the top of the blocking part 2701 of the water injection valve rod 27 and overcomes the force of the water injection reset spring 29 to push the water injection valve rod 27 to continue to slide downward. The sliding shaft 2707 of the water injection valve rod 27 slides downward on the sliding bottom wall 2507 of the valve bracket 25, causing the water injection valve 24 to rotate clockwise around the rotating shaft hole 3303 of the air inlet valve body 33. At this time, the water injection valve pad 26 on the front side of the water injection valve 24 is separated from the liquid outlet 11 of the lower cover 21, so that the fluid channel 22 and the pot body 2 remain open, and coffee can flow in or out from the pouring port 9.

[0056] 2) When the operating handle 16 of the thermos is pressed down, the operating handle 16 rotates counterclockwise around the handle pivot hole 1502 of the upper cover 15. The conductive surface 1603 of the operating handle 16 abuts against the columnar protrusion 1804 of the connector 18, and the arc surface 1801 of the connector 18 abuts against the top of the blocking part 2701 of the water injection valve rod 27. It overcomes the force of the water injection reset spring 29 and pushes the water injection valve rod 27 to continue sliding downward. The sliding shaft 2707 of the water injection valve rod 27 slides downward on the sliding bottom wall 2507 of the valve bracket 25, causing the water injection valve 24 to rotate clockwise around the pivot hole 3303 of the air inlet valve body 33. At this time, the water injection valve pad 26 on the front side of the water injection valve 24 is separated from the liquid outlet 11 of the lower cover 21, so that the fluid channel 22 and the kettle body 2 remain open, and coffee can flow in or out from the pouring spout 9.

[0057] 3) Simultaneously with the above actions, the rear protrusion 2506 of the valve bracket 25 rotates clockwise to a certain angle, contacts the lower bottom 3401 of the valve stem of the intake valve stem 34, slides on the lower bottom 3401 of the valve stem, pushes the intake valve stem 34 and moves upward against the force of the intake valve return spring 35, the intake valve sealing gasket 36 on the intake valve stem 34 separates from the upper side wall of the sealing part 3306 of the intake valve body 33, opens the intake port 3307 of the intake valve body 33, and air enters the kettle body 2.

[0058] The process of closing the thermos:

[0059] 1) When the thermos is removed from the coffee machine, the downward pressure of the operation button 17 disappears, or the force applied to the operation handle 16 disappears. The water filling return spring 29 pushes the valve stem cap 28 upward. The valve stem cap 28 drives the water valve stem 27 to slide upward, and the operation button 17 and the operation handle 16 return to their original positions due to the upward movement. At the same time, the sliding shaft 2707 of the water filling valve stem 27 slides upward on the sliding upper wall 2508 of the valve bracket 25, causing the water filling valve 24 to rotate counterclockwise around the pivot hole 3303 of the air inlet valve body 33. At this time, the water filling valve pad 26 on the front side of the water filling valve 24 contacts the liquid outlet 11 of the lower cover 21 and seals the liquid outlet 11, so that the fluid channel 22 and the pot body 2 are kept sealed, and the coffee is kept warm in the sealed pot body.

[0060] 2) Simultaneously with the above actions, the rear protrusion 2506 of the valve bracket 25 rotates counterclockwise to a certain angle and disengages from the bottom 3401 of the valve stem of the intake valve stem 34. The intake valve return spring 35 inside the intake valve body 33 pushes the intake valve stem 34 downward. The intake valve sealing gasket 36 on the intake valve stem 34 re-contacts with the upper side wall of the sealing part 3306 of the intake valve body 33 and seals the intake hole 3307 of the intake valve body 33, blocking the pot body 2 from contacting the atmosphere and preventing the coffee heat inside the pot from being lost.

[0061] In addition to the preferred embodiments described above, there are other embodiments of the present invention. Those skilled in the art can make various changes and modifications based on the present invention, and all such changes and modifications should fall within the scope defined by the appended claims, as long as they do not depart from the spirit of the present invention.

Claims

1. A thermos lid, characterized in that: The kettle includes a lid body, which comprises an upper lid body and a lower lid body. A valve body wall is formed on the upper part of the lower lid body. The valve body wall has a fluid channel, a water injection valve, and an air inlet valve. The air inlet valve is located at the top of the valve body wall. The water injection valve is rotatably connected to the air inlet valve. The water injection valve includes a water injection valve stem and a valve support. The valve support is rotatably connected to the air inlet valve. The water injection valve stem is vertically movable and assembled within the valve body wall. The water injection valve stem is slidably connected to the valve support to drive the valve support to rotate. The valve support includes a sliding groove and a component located at one end of the sliding groove. The rear protrusion and outer rotating shaft are used to slide the water injection valve rod in the sliding groove. The valve bracket is rotatably connected to the air intake valve through the outer rotating shaft and pushes up the air intake valve through the rear protrusion. The water injection valve seals the outlet of the fluid channel and can move up and down at the outlet to open or close the outlet, while simultaneously opening or closing the air intake valve. When the lid is closed, the water injection valve contacts the outlet and closes it, while simultaneously closing the air intake valve. When the lid is open, the water injection valve disengages from the outlet and opens it, while simultaneously opening the air intake valve.

2. The thermos lid according to claim 1, characterized in that: The intake valve is mounted vertically within the valve body wall and includes an intake valve body, an intake valve sealing ring disposed on the intake valve body, an intake valve stem disposed within the intake valve body, a water injection valve connected to the bottom of the intake valve body, an intake valve return spring on the intake valve stem, and an intake valve sealing ring fixed to the upper part of the intake valve stem.

3. The thermos lid according to claim 1, characterized in that: The water injection valve also includes a water injection valve pad, a water injection return spring, and a valve stem cap. The water injection valve stem is snapped into the valve stem cap. The water injection return spring is mounted on the water injection valve stem and is located between the valve body wall and the valve stem cap. The water injection valve pad is a soft silicone part. The water injection valve pad includes a concave or convex arc surface. The arc surface is adapted to the liquid outlet and is used to open and close the liquid outlet.

4. The thermos lid according to claim 3, characterized in that: The upper part of the water injection valve stem is provided with a mounting post, the top of the mounting post is provided with a blocking part, the periphery of the mounting post is provided with a locking part and a mounting wall, the locking part and the mounting wall are offset from each other and are arranged radially perpendicular to the mounting post, the middle part of the water injection valve stem is provided with a valve stem sealing ring groove, the valve stem sealing ring is provided in the valve stem sealing ring groove, and the lower part of the water injection valve stem is provided with a sliding wall and a sliding shaft, the two sides of the sliding shaft are higher than the outer wall of the sliding wall.

5. The thermos lid according to claim 4, characterized in that: The valve support includes a forward protrusion located at the other end of the sliding groove.

6. The thermos lid according to claim 5, characterized in that: The valve bracket includes a T-shaped groove, and the bottom side of the T-shaped groove is provided with a sliding bottom wall and a sliding top wall. The T-shaped groove, the sliding bottom wall, and the sliding top wall together form a sliding groove. The T-shaped groove includes a mounting part and a sliding part. The mounting part and the sliding part are perpendicularly distributed. The sliding shaft of the water injection valve rod is installed from the mounting part and can slide along the sliding part.

7. The thermos lid according to claim 1, characterized in that: The upper cover and the lower cover are engaged in a vertical movement. The ends of the upper cover and the lower cover are engaged by elastic buckles. The periphery of the upper cover and the lower cover are engaged by ribs.

8. The thermos lid according to claim 7, characterized in that: The upper cover includes an upper cover, an operating handle, an operating button, and a connecting member. The operating handle is rotatably mounted on the upper cover, the operating button is pressable mounted on the upper cover, and the connecting member is movable up and down on the upper cover. When the operating button is pressed down or the operating handle is rotated, one end of the connecting member slides into the top of the water injection valve, and the other end of the connecting member abuts against the operating handle or the operating button.

9. A thermos lid according to claim 8, characterized in that: The main body of the connector has an upwardly protruding connecting post at its center, and connecting shafts and columnar protrusions on both sides of the connecting post. The columnar protrusions are connected to the main body of the connecting post, and the lower part of the main body of the connector has a concave connecting surface.

10. A thermos, characterized in that: The device includes a kettle body, a spout, and a lid as described in any one of claims 1-9. The lower lid of the lid is screwed onto the spout via a threaded structure. The opening of the kettle body is provided with a spout sealing ring. The spout is fastened to the kettle body at the opening by pressing the spout sealing ring. The spout is provided with an internal thread that engages with the external thread on the lower lid. The spout includes a handle that extends rearward and downward, and a pouring spout for pouring or collecting liquid. The kettle body includes an outer liner, an inner liner, and a vacuum isolation layer formed by the outer and inner liners.

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