Thermal pot cover

Abstract

The utility model discloses a kind of thermos kettle covers, including lid, top cover assembly and pressure relief component, the top cover assembly is installed above the lid, the pressure relief component is located inside the lid, the top cover assembly includes top cover and pressure rod, the pressure rod is movably installed below top cover, the pressure rod includes pressing end and movable end, the pressing end extends the outside of top cover, rotation limiting cavity is provided on the lid, the movable end is contained in the rotation limiting cavity, the pressure relief component is arranged below the pressure rod, exhaust passage is arranged in the pressure relief component, exhaust valve and valve are arranged in the bottom of exhaust passage. The movable end of the pressing rod in the thermos kettle cover in the utility model can be pressed up and down along with the pressing end, so that the required pressing force is smaller when pressing, so as to improve the pressing experience of user.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation container technology, and in particular to a thermos lid. Background Technology

[0002] Thermos flasks are widely used in daily life because they can keep hot water for a long time. However, the current design of the pressure rod and sealing component transmission structure of thermos flask lids is unreasonable, resulting in high pressure resistance and making it difficult to press, thus creating a poor pressing experience for users. Utility Model Content

[0003] The purpose of this utility model is to provide a thermos lid that solves the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A thermos lid includes a lid body, a top cover assembly, and a pressure relief assembly. The top cover assembly is mounted above the lid body, and the pressure relief assembly is located inside the lid body. The top cover assembly includes a top cover and a pressure rod. The pressure rod is movably mounted below the top cover. The pressure rod includes a pressing end and a movable end. The pressing end extends outward from the top cover. The lid body has a rotation limiting cavity, and the movable end is accommodated within the rotation limiting cavity. The pressure relief assembly is located below the pressure rod. The pressure relief assembly has an exhaust channel inside, and an exhaust valve and a valve are provided at the bottom of the exhaust channel.

[0006] Furthermore, the pressing end is higher than the movable end, and the outer side of the pressing end is surrounded by a rubber coating.

[0007] Furthermore, a pressure block is provided between the top cover and the pressure rod.

[0008] Furthermore, a dust cover is provided below the movable end. The dust cover is Z-shaped, and the end of the dust cover away from the movable end extends outward to the spout.

[0009] Furthermore, the pressure relief assembly includes a push rod, the exhaust channel is opened inside the push rod, a gas sealing switch is provided around the top outer side of the push rod, a gas sealing switch sealing ring is provided between the gas sealing switch and the push rod, a gas sealing switch return spring is sleeved on the outside of the push rod and below the gas sealing switch, a limit groove is provided below the gas sealing switch, and the top of the gas sealing switch return spring is located in the limit groove.

[0010] Furthermore, a valve locking block is also engaged on the outer side of the push rod.

[0011] Furthermore, the cover is provided with a water outlet channel and an air inlet channel, which can be blocked by the valve.

[0012] Furthermore, a water-sealing ring is provided around the outer side of the cover, and a valve sealing ring is provided around the outer side of the valve.

[0013] Furthermore, the thermos lid also includes a filter screen, which is detachably installed below the lid.

[0014] Furthermore, the sidewall of the cover is provided with glass beads, which are engaged with the inner wall of the filter screen.

[0015] Beneficial effects:

[0016] The movable end of the pressing rod in the lid of the thermos flask of this invention can move up and down with the pressing end, so that the pressing force required is less, thereby improving the user's pressing experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a side view of the middle cover of this utility model;

[0020] Figure 4 This is a partial structural diagram of the present invention;

[0021] Figure 5 This is another part of the structural diagram of this utility model.

[0022] The following are the labels in the diagram: 1. Top cover; 2. Outer shell; 3. Pressure rod; 4. Handle; 5. Filter screen; 6. Tea compartment; 7. Dust cover; 8. Pressing end; 9. Movable end; 10. Rotation limit cavity; 11. Pressure block; 12. Air sealing switch sealing ring; 13. Air sealing switch; 14. Water outlet channel; 15. Water sealing ring; 16. Valve lock block; 17. Air sealing switch return spring; 18. Valve return spring; 19. Exhaust channel; 20. Air inlet channel; 21. Valve sealing ring; 22. Valve; 23. Glass bead; 24. Air outlet valve. Detailed Implementation

[0023] In the description of this embodiment, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, unless otherwise expressly specified and limited, the terms "installation," "connection," etc., should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0024] In addition, unless otherwise specified, the components used in the following embodiments are all existing components, and their corresponding connection methods can also be achieved through conventional technical means, which will not be described in detail in this application. The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example

[0026] This embodiment provides a thermos lid, including a lid body, a top cover assembly, and a pressure relief assembly. The top cover assembly is installed above the lid body, and the pressure relief assembly is located inside the lid body. The top cover assembly includes a top cover 1 and a pressure rod 3. The pressure rod 3 is movably installed below the top cover 1 and includes a pressing end 8 and a movable end 9. The pressing end 8 extends outward from the outside of the top cover 1. A rotation limiting cavity 10 is provided on the lid body, and the movable end 9 is accommodated within the rotation limiting cavity 10. The pressure relief assembly is located below the pressure rod 3, and an exhaust channel 19 is provided inside the pressure relief assembly. A valve 22 and an air vent valve 24 are provided at the bottom of the exhaust channel 19. An outer shell 2 is provided on the outside of the lid body, and a handle 4 is also provided on the side wall of the lid body.

[0027] Specifically, in this embodiment, the thermos lid includes a lid body as a basic support component of the lid. The lid body has a hollow cavity structure. A top cover assembly is installed on the top of the lid body. The top cover assembly includes a pressure rod 3 and a top cover 1. The top cover 1 allows the lid to be detachably connected to the body of the thermos. The pressure rod 3 includes a movable end 9 and a pressing end 8. The pressure rod protrudes downward below the position between the movable end 9 and the pressing end 8, closer to the movable end 9, so that it is horizontally lower than the movable end 9 and the pressing end 8. Therefore, the pressure rod 3 can swing up and down with the protrusion as a fulcrum. The movable end 9 is located in the rotation limiting cavity 10 and can move up and down. When the pressing rod 3 is pressed down, the movable end 9 can move upward within the rotation limiting cavity 10, reducing the pressing force through the lever principle. The hollow area inside the lid is used to accommodate the pressure relief assembly. The top rod of the pressure relief assembly is installed below the pressure rod 3. An exhaust channel 19 is provided in the middle, running through the top and bottom of the pressure relief assembly. The upper end of the exhaust channel 19 is connected to the outside, and the lower end is provided with an air vent valve 24. When the pressure rod 3 is pressed down, the air vent valve 24 can be opened, thereby connecting the exhaust channel 19 with the inside of the thermos, so that the gas inside the thermos can be discharged through the exhaust channel 19, achieving a balance of air pressure inside and outside the thermos.

[0028] Preferably, the pressing end 8 is higher than the movable end 9, and the height difference between the two provides sufficient swing space for the pressure rod 3, preventing the pressure relief component from failing to fully open due to insufficient stroke. Furthermore, the pressing end 8 is flush with the top cover 1, enhancing the overall neatness and aesthetics. The outer side of the pressing end 8 is covered with rubber, which provides anti-slip properties and improves the feel.

[0029] Preferably, a pressing block 11 is provided between the top cover 1 and the pressing rod 3. The pressing block 11 includes two opposing pressing parts and a lid fixing part. The lid fixing part is retractable. When the two pressing parts are pressed against each other, the lid fixing part retracts inward, allowing the lid to be removed from the pot body. When the pressing parts are released, the lid fixing part extends outward to fit into the groove in the pot body, thus fixing the lid to the pot body. It should be noted that the connection between the lid and the pot body in this embodiment uses existing technology and is not limited to the above method. Any technical solution that can detachably connect the lid and the pot body can be used.

[0030] Preferably, a dust cover 7 is provided below the movable end 9. The dust cover 7 is Z-shaped and specifically includes two mutually perpendicular horizontal sections. One section is positioned lower and below the movable end 9 of the pressure rod 3. Specifically, the movable end 9 includes a horizontal surface and an inclined surface, with the horizontal surface being higher than the inclined surface, and the end of the horizontal section of the dust cover 7 is below the inclined surface. The other horizontal section is positioned higher and covers the spout. The two horizontal sections also form a lever. When the pressing end 8 is pressed down, the horizontal section below the movable end 9 is subjected to a downward force, causing the horizontal section at the spout to tilt upward and open the spout. The dust cover 7 can block the spout opening and prevent dust, impurities, etc. from entering the pot.

[0031] Preferably, the pressure relief assembly includes a push rod with an exhaust channel 19 inside. A sealing switch 13 is provided around the top outer side of the push rod, and a sealing ring 12 is provided between the sealing switch 13 and the push rod. A sealing switch return spring 17 is fitted on the outside of the push rod and below the sealing switch 13. A limiting groove is provided below the sealing switch 13, and the top of the sealing switch return spring 17 is located within the limiting groove. An exhaust valve 24 is provided below the exhaust channel 19, and a valve 22 extends outward from the bottom of the pressure relief assembly. The cover also has a water outlet channel 14 and an air inlet channel 20, which can be blocked by the valve 22.

[0032] Specifically, the core structure of the pressure relief assembly uses a push rod as its skeleton. The push rod is hollow and cylindrical, with an exhaust channel 19 running through it. A sealing switch 13, which can slide along the axial direction of the push rod, is fitted on the outer side of the top. A sealing switch sealing ring 12 is fitted between the sealing switch 13 and the push rod with an interference fit. A sealing switch return spring 17 is fitted on the outer side of the push rod below the sealing switch 13. The top of the spring is embedded in the annular limiting groove at the bottom of the sealing switch 13 to prevent displacement. An air outlet valve 24 with elastic blades is installed at the bottom of the push rod, and the bottom extends outward to form a disc-shaped valve 22 corresponding to the water outlet channel 14 and air inlet channel 20 of the cover. A valve sealing ring is fitted around the edge of the valve 22. 21. Its core function is to move the air-sealing switch 13 up and down under the driving force of the air-sealing switch reset spring 17 and the pressure rod 3, thereby driving the air-sealing switch sealing ring 12 to open and close the exhaust channel 19. This, combined with the air outlet valve 24, automatically opens to release air when there is overpressure inside the kettle, quickly balancing the pressure. Simultaneously, through the linkage of the bottom valve 22 moving up and down, the valve sealing ring 21 synchronously controls the opening and closing of the water outlet channel 14 and the air inlet channel 20. This achieves a seamless function from sealing and heat preservation in standby mode to depressurizing before dispensing water when pressed. This solves the problems of difficult pouring and steam splashing under high pressure, and ensures operational safety and smoothness through structural linkage. The structure and working principle of the air outlet valve 24 are existing technologies and will not be described further here.

[0033] Preferably, a valve locking block 16 is also provided around the outside of the push rod. The valve locking block 16 can restrict the left and right sway of the push rod, ensuring that the push rod moves stably only along the axial direction, so that each component is precisely aligned with the corresponding channel, avoiding poor sealing or component wear due to misalignment, and improving structural stability and service life.

[0034] Preferably, a water-sealing ring 15 is provided around the outer side of the lid, and a valve sealing ring 21 is provided around the outer side of the valve 22. The water-sealing ring 15 can seal the connection gap between the lid and the body of the kettle, preventing water from leaking from the edge of the lid and reducing heat loss, thus enhancing heat preservation. The valve sealing ring 21, when the valve 22 is closed, fits tightly against the inlet of the water outlet channel 14 and the air inlet channel 20, ensuring that the channels are completely sealed and preventing water or air leakage.

[0035] Preferably, the thermos lid also includes a filter screen 5, which is detachably installed below the lid. A tea compartment 6 is installed below the filter screen 5. Glass beads 23 are provided on the side wall of the lid, engaging with the inner wall of the filter screen 5. Partially exposed glass beads 23 engage with the inner wall of the flange edge of the filter screen 5, fixing the position of the filter screen 5 and preventing wear caused by direct friction between the filter screen 5 and the plastic wall of the lid due to the smooth surface of the glass beads. When cleaning or replacing the filter screen 5, simply push the edge of the filter screen gently; the glass beads 23 will roll slightly along the groove, making the filter screen easy to remove. The top of the tea compartment 6 below the filter screen 5 fits snugly against the bottom of the filter screen 5. When brewing tea, tea leaves are placed in the tea compartment 6. After hot water is poured into the kettle, the tea leaves are moistened by the tea compartment 6, then filtered through the filter screen 5 to remove tea residue, and finally flow out through the water outlet 14, preventing tea leaves from spilling out.

[0036] Although the embodiments of this utility model have been described in the specification, these embodiments are merely illustrative and should not limit the scope of protection of this utility model. Various omissions, substitutions, and modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. An insulated flask lid, characterized by: The device includes a cover, a top cover assembly, and a pressure relief assembly. The top cover assembly is mounted above the cover, and the pressure relief assembly is located inside the cover. The top cover assembly includes a top cover and a pressure rod. The pressure rod is movably mounted below the top cover and includes a pressing end and a movable end. The pressing end extends outward from the top cover. The cover has a rotation limiting cavity, and the movable end is accommodated within the rotation limiting cavity. The pressure relief assembly is located below the pressure rod, and the pressure relief assembly has an exhaust channel inside. An exhaust valve and a valve are located at the bottom of the exhaust channel.

2. The vacuum flask lid of claim 1, wherein: The pressing end is higher than the movable end, and the outer side of the pressing end is surrounded by a rubber coating.

3. The vacuum flask lid of claim 1, wherein: A pressure block is provided between the top cover and the pressure rod.

4. The vacuum flask lid of claim 1, wherein: A dust cover is provided below the movable end. The dust cover is Z-shaped, and the end of the dust cover away from the movable end extends outward to the spout.

5. The vacuum flask lid of claim 1, wherein: The pressure relief assembly includes a push rod, the exhaust channel is opened inside the push rod, a gas sealing switch is provided around the top outer side of the push rod, a gas sealing switch sealing ring is provided between the gas sealing switch and the push rod, a gas sealing switch reset spring is sleeved on the outside of the push rod and below the gas sealing switch, a limit groove is provided below the gas sealing switch, and the top of the gas sealing switch reset spring is located in the limit groove.

6. The vacuum flask lid of claim 5, wherein: A valve locking block is also engaged on the outside of the top rod.

7. The vacuum flask lid of claim 1, wherein: The cover is provided with a water outlet channel and an air inlet channel, which can be blocked by the valve.

8. The vacuum flask lid of claim 1, wherein: The outer side of the cover is provided with a water-sealing ring, and the outer side of the valve is provided with a valve sealing ring.

9. The vacuum flask lid of claim 1, wherein: The thermos lid also includes a filter screen, which is detachably installed under the lid.

10. The vacuum flask lid of claim 9, wherein: The side wall of the cover is provided with glass beads, which are engaged with the inner wall of the filter screen.

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