Valve assembly, container cover assembly and heat preservation container

Abstract

The invention provides a valve assembly, a container cover assembly and a heat preservation container, the valve assembly is used for being installed on a container cover, the container cover is provided with a water outlet channel, the valve assembly comprises a valve rod and a valve body connected with the first end of the valve rod, the valve body is of a hollow structure with a sealing cavity, the valve rod is used for being connected with the container cover, and the sealing cavity is communicated with the valve rod. The valve body is used for sealing or opening the water outlet channel. The valve body is connected to the container cover, the water outlet channel can be selectively opened, soup in the heat preservation container can be conveniently introduced, and the use convenience of the heat preservation container is improved. Furthermore, the valve body is arranged to be of a hollow structure with a sealing cavity, the heat conduction performance of the valve body is reduced, and therefore the heat conduction speed is reduced, heat of boiled water is not prone to being dissipated to the outside through the valve assembly, the temperature of the boiled water in the containing cavity is not prone to being reduced, and the heat preservation time of the boiled water is prolonged. Therefore, the thermal insulation performance of the thermal insulation container is improved.

Description

Technical Field

[0001] This disclosure belongs to the field of thermal insulation container technology, and particularly relates to a valve assembly, a container cover assembly, and a thermal insulation container. Background Technology

[0002] Insulated containers are everyday household items, such as thermos flasks. To ensure a readily available warm drink, boiling water is typically poured into a thermos flask to maintain its temperature for an extended period. Given that heat retention is one of the core selling points of insulated containers, improving the heat retention performance of thermos flasks is an effective way for companies to increase their market share in the insulated container market. Summary of the Invention

[0003] The main objective of this disclosure is to provide a valve assembly, a container cover assembly, and an insulated container to improve the insulation performance of the insulated container.

[0004] To achieve the above objectives, this disclosure provides the following technical solution: According to one aspect of this disclosure, a valve assembly is provided for mounting on a container lid having a water outlet channel. The valve assembly includes a valve stem and a valve body connected to a first end of the valve stem. The valve body is a hollow structure with a sealing cavity. The valve stem is used to connect to the container lid, and the valve body is used to seal or open the water outlet channel. This disclosure allows the valve body to be movably connected to the container lid, enabling selective opening of the water outlet channel for easy access to liquids in the insulated container, thus improving the convenience of using the insulated container. Furthermore, by setting the valve body as a hollow structure with a sealing cavity, the thermal conductivity of the valve body is reduced, thereby slowing down the heat conduction rate. The heat from boiling water is less likely to dissipate to the outside through the valve assembly, making it less likely for the temperature of the boiling water in the containing cavity to drop, extending the heat preservation time of the boiling water, and thus improving the heat preservation performance of the insulated container.

[0005] According to an exemplary embodiment of this disclosure, the sealing cavity is a vacuum sealing cavity, which further reduces the thermal conductivity of the valve body and improves the thermal insulation performance of the insulation container.

[0006] According to an exemplary embodiment of this disclosure, the valve body includes a housing and a sealing structure. The housing forms the sealing cavity, and a vacuum port is provided on the cavity wall of the sealing cavity for evacuating the sealing cavity. The sealing structure is used to seal the vacuum port. This configuration facilitates evacuation of the valve body by providing the vacuum port, and the sealing structure helps maintain a vacuum within the valve body's accommodating cavity by sealing the vacuum port.

[0007] According to an exemplary embodiment of this disclosure, a recess is formed on the outer surface of the housing, the vacuum port is disposed in the recess, the sealing structure is disposed within the cavity of the recess, and the valve body further includes a sealing sheet connected to the housing and sealingly covering the sealing structure. This configuration, by providing the recess, facilitates the accommodating of material used to form the sealing structure, making it possible to simultaneously perform the vacuuming process and the heating and melting process within the furnace, thus simplifying the processing.

[0008] According to an exemplary embodiment of this disclosure, a mounting hole penetrating the thickness of the valve body is formed in the middle of the valve body, and a first end of the valve stem is movably inserted into the mounting hole. The sealing cavity extends continuously circumferentially around the mounting hole, thereby forming an annular sealing cavity. With this configuration, the valve body is movably connected to the container lid via the valve stem. Movement of the valve stem relative to the container lid drives the valve body to move relative to the container lid, thereby sealing or opening the water outlet channel.

[0009] According to an exemplary embodiment of this disclosure, the valve body is made of metal, ceramic, or glass.

[0010] According to an exemplary embodiment of this disclosure, the valve stem includes a spindle and an exhaust valve. The exhaust valve is disposed at the bottom end of the spindle, which is movably inserted into the mounting hole, allowing the exhaust valve to seal or open the gap between the spindle and the wall of the mounting hole. With this configuration, the projected area of ​​the exhaust valve in the radial direction of the container lid assembly can be smaller than the projected area of ​​the valve body. This results in a lower pressure exerted by the gas inside the insulated container on the exhaust valve compared to the pressure exerted on the valve body. Consequently, it is easier to move the exhaust valve relative to the container lid, reducing the difficulty of depressurizing the container lid.

[0011] According to an exemplary embodiment of this disclosure, the lower surface of the valve body is provided with a receiving groove, the receiving groove communicating with the mounting hole. The vent valve is received within the receiving groove and is in sealing contact with the groove wall. When the vent valve moves outward relative to the receiving groove, the gap between the mandrel and the wall of the mounting hole is opened. This configuration, by providing the receiving groove, increases the number of bends on the direct contact surface between the valve body and the valve stem, thereby improving the sealing reliability of the valve stem and valve body.

[0012] According to another aspect of this disclosure, a container lid assembly is provided, comprising a container lid and a valve assembly as described above. The container lid is provided with a water outlet channel, and the valve assembly is movably connected to the container lid, allowing the valve body to open or seal the water outlet channel. This disclosure, by movably connecting the valve body to the container lid, allows for selective opening of the water outlet channel, facilitating the siphoning of liquid from the insulated container and improving the ease of use of the insulated container. Furthermore, by designing the valve body as a hollow structure with a sealed cavity, the thermal conductivity of the valve body is reduced, thereby slowing down the heat conduction rate. The heat from boiling water is less likely to dissipate to the outside through the valve assembly, making it less likely for the temperature of the boiling water inside the cavity to drop, extending the heat preservation time of the boiling water, and thus improving the heat preservation performance of the insulated container.

[0013] According to another aspect of this disclosure, an insulated container is provided, including a container body and a container lid assembly as described above, the container lid being capable of closing onto the opening of the container body. Attached Figure Description

[0014] The above and / or other objects and advantages of this disclosure will become clearer from the following description of embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 A partial structural diagram of an insulated container provided for an exemplary embodiment of this disclosure.

[0015] Figure 2 This is a structural diagram of a container lid provided for an exemplary embodiment of the present disclosure.

[0016] Figure 3 for Figure 2 An exploded view of the container lid.

[0017] Figure 4 for Figure 2 A longitudinal sectional view of the container lid.

[0018] Figure 5 for Figure 2 The structural diagram of the valve assembly.

[0019] Figure 6 for Figure 5 The longitudinal sectional view of the valve body.

[0020] Explanation of reference numerals in the attached figures: 100. Container lid assembly; 110. Container lid; 111. Water outlet channel; 112. Bottom cover seal; 113. Cover plate; 114. Vent hole; 115. Sleeve; 116. Cover body; 120. Valve assembly; 121. Valve body; 122. Valve stem; 123. Spindle position retainer; 124. Buffer component; 125. Limiting part; 126. Limiting pressure block; 130. Locking structure; 131. Locking body; 132. Locking tongue; 133. Locking groove; 134. Locking position retainer; 140. Button; 141. Pivot axis; 200. Container body; 1131. Cover plate body; 1132. Cover plate through hole; 1211. Sealing cavity; 1212, Mounting hole; 1213, Receiving groove; 1214. Vacuum extraction port; 1215. Sealing plate; 1216. Limiting post; 1217. Housing; 1218. Sealing structure; 1221. Mandrel; 1222. Air outlet valve; 1223. Ventilation gap; 1224. Spindle seal; 1225. Vent valve seal. Detailed Implementation

[0021] Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be construed that the embodiments of this disclosure are limited to those described herein. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed descriptions will be omitted.

[0022] Reference Figure 1 According to one aspect of this disclosure, an insulated container is provided, such as, but not limited to, an insulated flask or a thermos cup, but not limited thereto. This embodiment will be described using an insulated flask as an example, but is not limited thereto.

[0023] A thermal container typically includes a container body 200 and a container lid assembly 100 that covers the opening of the container body 200. When the container lid assembly 100 is installed at the opening of the container body 200, the receiving cavity of the container body 200 can remain sealed, thereby preventing liquid from leaking out of the receiving cavity. This embodiment uses boiling water as an example for illustration, but it is not limited to this; the liquid in the receiving cavity can also be hot soup, etc., as needed.

[0024] Reference Figures 2 to 4 According to another aspect of this disclosure, a container lid assembly 100 is provided to be applicable to the aforementioned insulated container.

[0025] According to an exemplary embodiment of this disclosure, the container lid assembly 100 may include a container lid 110 and a valve assembly 120. The container lid 110 is used to cover the opening of the container body 200. The container lid 110 has a water outlet channel 111, through which the receiving cavity of the container body 200 can communicate with the outside when the container lid 110 is installed at the opening of the container body 200. As an example, when the receiving cavity is connected to the water outlet channel 111 and the receiving cavity contains boiling water, the boiling water can flow out through the water outlet channel 111.

[0026] Continue to refer to Figure 3 and Figure 4 The valve assembly 120 includes a valve stem 122 and a valve body 121. The valve body 121 is connected to the first end of the valve stem 122, and the valve stem 122 is used to connect to the container lid 110. The valve body 121 is used to seal or open the water outlet channel 111. Under normal circumstances, the valve body 121 is in a sealed state of the water outlet channel 111. At this time, the valve body 121 separates the water outlet channel 111 from the receiving cavity of the container body 200, and the hot water in the receiving cavity cannot flow out through the water outlet channel 111. When the valve body 121 moves relative to the container lid 110 to open the water outlet channel 111, the receiving cavity is connected to the water outlet channel 111, and the hot water in the receiving cavity can flow out through the water outlet channel 111.

[0027] Continue to refer to Figure 2 According to an exemplary embodiment of this disclosure, a valve body 121 is disposed at the bottom end of a container lid 110 and is capable of sealingly fitting against the bottom edge of the container lid 110. When the valve body 121 is fitted against the bottom edge of the container lid 110, the valve body 121 seals the water outlet channel 111. At this time, the water outlet channel 111 is separated from the receiving cavity of the container body 200, and the liquid in the receiving cavity cannot flow out through the water outlet channel 111. When the valve body 121 is moved relative to the container lid 110 to disengage the valve body 121 from the bottom edge of the container lid 110, the water outlet channel 111 is opened, and the receiving cavity of the container body 200 is connected to the water outlet channel 111. At this time, the liquid in the receiving cavity of the container body 200 can be taken out, for example, but not limited to, boiling water.

[0028] In this embodiment, the valve body 121 is movably connected to the container cover 110, which allows the water outlet channel 111 to be selectively opened so that boiling water in the insulated container can be taken out.

[0029] Furthermore, the valve body 121 is a hollow structure with a sealed cavity. By setting a sealed cavity inside the valve body 121, the thermal conductivity of the valve body 121 is reduced, thereby reducing the heat conduction speed. The heat of the boiling water is not easily dissipated to the outside through the valve assembly 120, making it difficult for the temperature of the boiling water in the containment cavity to drop, thus extending the heat preservation time of the boiling water and improving the heat preservation performance of the heat preservation container.

[0030] In order to further reduce the thermal conductivity of the valve body 121, according to an exemplary embodiment of the present disclosure, the sealing cavity 1211 is configured as a vacuum sealing cavity, but is not limited thereto.

[0031] Reference Figure 3 , Figure 5 as well as Figure 6 In order to facilitate the vacuuming operation of the sealing cavity 1211 of the valve body 121 so that the sealing cavity 1211 is formed into a vacuum sealing cavity, the valve body 121 is provided with a vacuum port 1214 that connects the sealing cavity 1211 to the outside. The specific structure of the valve body 121 will be described in detail below.

[0032] According to an exemplary embodiment of this disclosure, the valve body 121 may include a housing 1217 and a sealing plate 1215. The housing 1217 forms a sealed cavity 1211. A vacuum extraction port 1214 is provided on the cavity wall of the sealed cavity 1211, allowing the sealed cavity 1211 to communicate with the outside world. The vacuum extraction port 1214 facilitates evacuation of the sealed cavity 1211. After the sealed cavity 1211 is formed into a vacuum sealed cavity, the sealing plate 1215 is then sealed and covered by the vacuum extraction port 1214, thereby preventing outside gas from entering the sealed cavity 1211 and maintaining the sealed cavity 1211 as a vacuum sealed cavity. As an example, the sealing plate 1215 may be connected to the housing 1217 by welding, but this is not a limitation.

[0033] Referring to the accompanying drawings, this embodiment is illustrated by taking the vacuum port 1214 located on the top wall of the housing 1217 as an example, but this is not a limitation. In addition, the vacuum port 1214 can be located at any position on the housing 1217 as needed, as long as it can cooperate with a vacuum pumping device to evacuate the sealed cavity 1211.

[0034] To facilitate sealing of the vacuum port 1214, the vacuum port 1214 may be formed on the plane of the housing 1217, but this is not a limitation. Of course, if necessary, the vacuum port 1214 may be formed on the curved surface of the housing 1217, which is also within the scope of protection of this disclosure, but is not a limitation.

[0035] According to an exemplary embodiment of the present disclosure, a recess is formed on the outer surface of the housing 1217, a vacuum port 1214 is disposed in the recess, and a sealing structure 1218 for sealing the vacuum port 1214 is provided in the recess. A sealing sheet 1215 covers the recess, such that the sealing sheet 1215 is formed to cover the sealing structure to protect the sealing structure 1218, but is not limited thereto.

[0036] As an example, the sealing structure 1218 may be a high-temperature resistant sealing solder, for example, but not limited to, the sealing structure 1218 may be made of glass material, but is not limited thereto.

[0037] Specifically, a shell 1217 is prefabricated, and the material used to form the sealing structure 1218 is placed in the recess. The shell 1217 is then placed in a heating furnace. For example, but not limited to, the shell 1217 is made of stainless steel, and the material used to form the sealing structure 1218 can be glass. The heating furnace is started and evacuated. When the temperature reaches a predetermined level and the vacuum reaches a predetermined pressure, the material used to form the sealing structure 1218 melts and seals the vacuum port 1214. At this point, the heating furnace can be cooled down, thus achieving the sealing of the vacuum port 1214.

[0038] To prevent the sealing structure 1218 from being scratched or damaged by impact, a sealing sheet 1215 covers the metal sheet above the sealing structure 1218. For example, but not limited to, the sealing sheet 1215 is made of stainless steel, but is not limited thereto. As an example, the sealing sheet 1215 can be connected to the housing 1217 by welding, but is not limited thereto.

[0039] According to an exemplary embodiment of this disclosure, the valve body 121 is made of a metallic material, such as, but not limited to, stainless steel or titanium, but not limited thereto. Depending on the need, the valve body 121 may also be made of glass or ceramic, but not limited thereto. In fact, the valve body 121 provided in this disclosure is not limited in its material, as long as a vacuum-sealed cavity can be formed therein.

[0040] The above embodiment is illustrated by taking the case where the shell 1217 is made of stainless steel and the material used to form the sealing structure 1218 is glass, but this is not a limitation. When the shell 1217 is made of titanium, the material used to form the sealing structure 1218 can be an alloy material, but this is not a limitation.

[0041] Reference Figure 6 According to an exemplary embodiment of the present disclosure, the valve body 121 is provided with a mounting hole 1212, through which the valve stem 122 of the valve assembly 120 (described below) can be connected to the valve stem 122. According to an exemplary embodiment of the present disclosure, the mounting hole 1212 is provided through the top and bottom ends of the valve body 121, and the valve stem 122 can pass through the mounting hole 1212. Specifically, in the radial direction of the valve body 121, a sealing cavity 1211 is arranged on the outer periphery of the mounting hole 1212, and the sealing cavity 1211 extends continuously along the circumference of the valve body 121, but is not limited thereto.

[0042] return Figures 3 to 5The valve assembly 120 may also include a valve stem 122, which is movably disposed within the mounting hole 1212 of the valve body 121, so that the valve body 121 can reciprocate between an isolated position and an open position relative to the valve stem 122.

[0043] According to an exemplary embodiment of the present disclosure, the valve stem 122 is configured to be movably connected to the container cover assembly 100 and has a first position and a second position relative to the container cover assembly 100. When the valve stem 122 is in the first position, the valve body 121 can be sealed and fitted with the bottom edge of the container cover 110, at which time the water outlet channel 111 is isolated from the receiving cavity of the container body 200.

[0044] Reference Figure 4 The diagram shows a state where the valve stem 122 is in a first position relative to the container cap assembly 100, and the valve body 121 is in an isolated position relative to the valve stem 122. It should be noted that when the valve stem 122 is in the first position, the valve body 121 remains in the isolated position, maintaining a sealed fit with the bottom edge of the container cap 110. This configuration improves the reliability of the valve assembly 120.

[0045] According to another exemplary embodiment of this disclosure, when the valve stem 122 is in the second position (not shown), for example, but not limited to, the valve... Figure 4 The valve stem 122 moves downward a predetermined distance, at which point the bottom end of the valve stem 122 is spaced a predetermined distance from the valve body 121. This gap between the valve body 121 and the valve stem 122 can be used to accommodate the depressurization of gas within the cavity. Specifically, after the valve stem 122 moves downward a predetermined distance, the high temperature of the boiling water within the cavity results in a large gas pressure. Under this gas pressure, the valve body 121 will remain sealed against the bottom edge of the cover body 116, and at this point, the valve body 121 is in an isolated position.

[0046] As time goes by, when the air pressure inside the container body 200 is basically the same as the external atmospheric pressure, the valve body 121 will move downward relative to the valve stem 122 under the action of gravity. The valve body 121 will detach from the bottom edge of the cover body 116 and be supported at the bottom of the valve stem 122. The valve body 121 is in the conducting position. At this time, the water outlet channel 111 is connected to the container body 200. When the insulated container is tilted, the boiling water in the container cavity can flow out through the water outlet channel 111 to achieve water intake.

[0047] According to an exemplary embodiment of this disclosure, the valve stem 122 is movably fitted into the mounting hole 1212 of the valve body 121, allowing the valve body 121 to move relative to the valve stem 122, reciprocating between an isolated position and a connected position. When the valve body 121 is in the isolated position, it remains sealed against the bottom edge of the container cover 110, thus isolating the water outlet channel 111 from the receiving cavity of the container body 200. When the valve body 121 is in the connected position, it disengages from the bottom edge of the container cover 110, allowing the water outlet channel 111 to communicate with the receiving cavity of the container body 200, enabling hot water in the receiving cavity to flow out through the water outlet channel 111. With this configuration, by driving the valve stem 122 to move relative to the container cover assembly 100, the valve body 121 can be moved between the connected and isolated positions as needed, thereby allowing hot water to be taken from the container body 200 when the valve body 121 is in the connected position.

[0048] Continue to refer to Figure 4 The container cap 110 may also include a sleeve 115 disposed on the cap body 116, and the valve stem 122 is movably sleeved in the sleeve 115 so as to be movably connected to the cap body 116, but is not limited thereto. The valve stem 122 has a first position and a second position relative to the cap body 116. When the valve stem 122 is in the first position, the valve body 121 can be sealed and fitted with the bottom edge of the container cap 110, at which time the water outlet channel 111 is isolated from the receiving cavity of the container body 200.

[0049] When the valve stem 122 is in the second position, the valve body 121 can move relative to the valve stem 122 to move between the isolation position and the conduction position. When the valve body 121 is in the isolation position, the valve body 121 remains in sealed contact with the bottom edge of the container cover 110, so that the water outlet channel 111 and the receiving cavity of the container body 200 are isolated. When the valve body 121 is in the conduction position, the valve body 121 is disengaged from the bottom edge of the container cover 110. At this time, the water outlet channel 111 can communicate with the receiving cavity of the container body 200, so that the boiling water in the receiving cavity can flow out through the water outlet channel 111.

[0050] Continue to refer to Figure 4 In this embodiment, the sleeve 115 is disposed in the inner cavity of the lid body 116, and the sleeve 115 extends approximately vertically along the container lid assembly 100. In this embodiment, the container lid assembly 100 is installed at the opening of the container body 200, and the insulated container is normally placed on the table as an example. That is, in this embodiment, the insulated container is usually placed vertically, but it is not limited to this.

[0051] Continue to refer to Figure 4 and Figure 6The lower surface of the valve body 121 is provided with a receiving groove 1213, which communicates with the mounting hole 1212. The receiving groove 1213 can be used to accommodate the air outlet valve 1222 (described below), but is not limited thereto.

[0052] According to an exemplary embodiment of this disclosure, referring to Figure 4 The valve stem 122 may include a spindle 1221 and an exhaust valve 1222 disposed at the bottom end of the spindle 1221. The spindle 1221 is movably disposed in the mounting hole 1212. The exhaust valve 1222 can move with the movement of the spindle 1221 relative to the valve body 121, so that the exhaust valve 1222 can block or open the gap between the spindle 1221 and the hole wall of the mounting hole 1212.

[0053] As an example, in the radial direction of the container cap assembly 100, the vent valve 1222 is formed to protrude outward relative to the spindle 1221, that is, the radius of the vent valve 1222 is larger than the radius of the spindle 1221, but is not limited thereto.

[0054] The mandrel 1221 is movably fitted inside the sleeve 115. A receiving groove 1213 is provided on the lower surface of the valve body 121, communicating with the mounting hole 1212. The vent valve 1222 is accommodated within the receiving groove 1213 and is in sealing contact with the groove wall of the receiving groove 1213. When the vent valve 1222 moves outward relative to the receiving groove 1213, it opens the gap between the mandrel 1221 and the wall of the mounting hole 1212. As an example, when the valve stem 122 is in the first position, the vent valve 1222 is positioned within the receiving groove 1213 and seals the gap between the mandrel 1221 and the wall of the mounting hole 1212, preventing pressure leakage from the receiving cavity of the container body 200 through the gap between the mandrel 1221 and the wall of the mounting hole 1212, thus improving the sealing performance of the valve assembly 120.

[0055] When the mandrel 1221 moves downward relative to the valve body 121, the vent valve 1222 moves outward relative to the receiving groove 1213. At this time, the gap between the mandrel 1221 and the wall of the mounting hole 1212 is no longer blocked, and the airflow in the receiving cavity of the container body 200 and the water outlet channel 111 is connected, thereby realizing the depressurization of the receiving cavity of the container body 200 (which will be described in detail below).

[0056] In this embodiment, by providing a receiving groove 1213 at the bottom of the valve body 121, the number of bends at the joint surface between the valve body 121 and the valve stem 122 is increased, which increases the difficulty of air pressure flow and thus improves the sealing performance of the valve assembly 120.

[0057] In this embodiment, the vent valve 1222 is disc-shaped, for example, but not limited to, a round disc shape. The shape of the receiving groove 1213 matches the vent valve 1222, so that when the valve stem 122 is in the first position, the vent valve 1222 can enter the receiving groove 1213. As an example, the vent valve 1222 can be integrally formed with the mandrel 1221, or the vent valve 1222 and the mandrel 1221 can be formed independently and then connected together by welding or fasteners, all of which are within the protection scope of this disclosure.

[0058] To further improve the sealing performance of the valve assembly 120, the valve assembly 120 may also include an exhaust valve seal 1225, which is circumferentially connected to the valve body 121. When the valve stem 122 is in the first position, the exhaust valve seal 1225 is sealed between the exhaust valve 1222 and the valve body 121, thereby sealing the gap between the spindle 1221 and the wall of the mounting hole 1212.

[0059] Continue to refer to Figure 4 According to an exemplary embodiment of the present disclosure, the vent valve seal 1225 is configured as a housing structure, the vent valve 1222 is disposed in the receiving cavity of the housing structure, and the vent valve seal 1225 is wrapped around the vent valve 1222. The vent valve seal 1225 covers the side of the vent valve 1222 connected to the spindle 1221. With this configuration, when the valve stem 122 is in the first position, the vent valve 1222 is disposed in the receiving groove 1213, and the vent valve seal 1225 is sealed and fitted between the bottom of the receiving groove 1213 and the top surface of the vent valve 1222, thereby sealing the gap between the spindle 1221 and the wall of the mounting hole 1212.

[0060] The above embodiment is illustrated by taking the air outlet valve seal 1225 as a housing structure as an example, but it is not limited thereto. The air outlet valve seal 1225 can also be configured in other structural forms as needed.

[0061] In an optional embodiment, the vent valve seal 1225 can be an annular sealing gasket, which is sleeved on the mandrel 1221 and covers the side of the vent valve 1222 connected to the mandrel 1221. As an example, the side connected to the mandrel 1221 can be the top surface of the vent valve 1222. When the vent valve 1222 enters the receiving groove 1213, the annular sealing gasket is pressed between the bottom of the receiving groove 1213 and the top surface of the vent valve 1222, thereby sealing the gap between the mandrel 1221 and the wall of the mounting hole 1212.

[0062] Compared to the air valve seal 1225 with a shell structure, the air valve seal 1225 in the form of an annular sealing gasket provided in this embodiment uses less material, but is not limited thereto.

[0063] As an example, the annular sealing gasket can be glued to the top surface of the vent valve 1222 or glued to the bottom of the receiving groove 1213, but is not limited thereto.

[0064] Reference Figure 5 The mandrel 1221 is movably disposed within the mounting hole 1212. In order to improve the smoothness of the movement of the mandrel 1221, a gap is inevitably provided between the mandrel 1221 and the wall of the mounting hole 1212. In order to prevent the hot air in the containment cavity from flowing out of the heat preservation container through the gap and taking away the heat of the boiling water, the vent valve 1222 is used to seal the gap, thereby improving the heat preservation performance of the heat preservation container.

[0065] In the container lid assembly 100 provided in this disclosure, under normal circumstances, the valve stem 122 is in the first position, at which time the receiving cavity is separated from the water outlet channel 111 by the valve body 121, the receiving cavity remains sealed, and the boiling water in the receiving cavity cannot flow out through the water outlet channel 111.

[0066] When it is necessary to take hot water from the insulated container, the valve stem 122 can be driven to move to the second position, for example, but not limited to, the valve stem 122 can be driven downwards, and the vent valve 1222 moves into the receiving cavity. At this time, due to the high temperature of the hot water in the receiving cavity, the receiving cavity has a large gas pressure. Under the action of gas pressure, the valve body 121 will remain sealed and adhered to the bottom edge of the cover body 116 and remain in the isolation position. In this way, the vent valve 1222 will be separated from the valve body 121, and the gap between the spindle 1221 and the hole wall of the mounting hole 1212 will no longer be sealed. The gas in the receiving cavity will enter the space above the valve body 121 through the gap between the spindle 1221 and the hole wall of the mounting hole 1212, and leave the insulated container through the water outlet channel 111 or the vent hole 114 (described below). The process of driving the valve stem 122 to move to reduce the gas pressure in the receiving cavity can be called the depressurization process.

[0067] To shorten the time of the aforementioned pressure relief process and improve the ease of use of the container cap assembly 100, the gap may include a ventilation gap 1223 formed by a recess in the outer peripheral wall of the mandrel 1221. The ventilation gap 1223 extends axially along the mandrel 1221 to the top surface of the vent valve 1222. When the vent valve 1222 is spaced at a predetermined interval from the bottom of the receiving groove 1213, the hot air in the receiving cavity can bypass the vent valve 1222 and enter the gap between the mandrel 1221 and the wall of the mounting hole 1212 to flow into the space above the valve body 121. By providing the ventilation gap 1223 on the mandrel 1221, the hot air can quickly pass through the gap between the mandrel 1221 and the wall of the mounting hole 1212, thereby shortening the time of the pressure relief process.

[0068] According to an exemplary embodiment of the present disclosure, at least two ventilation gaps 1223 are provided on the mandrel 1221, and the at least two ventilation gaps 1223 are provided at circumferential intervals along the mandrel 1221, but are not limited thereto.

[0069] After the above-mentioned depressurization process is completed, the air pressure in the containment cavity of the container body 200 is basically the same as the external atmospheric pressure. At this time, the valve body 121 will move downward under the action of gravity to separate from the bottom edge of the cover body 116. The valve body 121 is in the conducting position. At this time, the water outlet channel 111 is connected to the containment cavity of the container body 200. When the insulated container is tilted, the boiling water in the containment cavity can flow out through the water outlet channel 111 to achieve water intake.

[0070] Continue to refer to Figure 4 According to an exemplary embodiment of this disclosure, a first cavity and a second cavity are provided within the cover body 116. The first cavity and the second cavity are isolated from each other. In the axial direction of the cover body 116, the second cavity is located above the first cavity. The first cavity is the space above the valve body 121. The first cavity is connected to the water outlet channel 111, meaning that the first cavity can also communicate with the outside through the water outlet channel 111, but this is not a limitation. In addition, a vent hole 114 may be provided on the cavity wall of the first cavity, so that the first cavity can also communicate with the outside through the vent hole 114, but this is not a limitation. The aforementioned sleeve 115 is disposed in the second cavity, and other components such as the spindle position retainer 123 are disposed in the second cavity.

[0071] To prevent hot air from the first cavity or water from the outlet channel 111 from entering the second cavity and contacting other components of the container cap assembly 100, thus affecting the reliability of the container cap assembly 100, in this embodiment, the valve assembly 120 may further include a spindle seal 1224, disposed in the inner cavity of the sleeve 115 and connected to at least one of the spindle 1221 and the sleeve 115, to seal the gap between the inner wall surfaces of the spindle 1221 and the sleeve 115. This arrangement, by sealing the gap between the inner wall surfaces of the spindle 1221 and the sleeve 115 with the spindle seal 1224, further isolates the first cavity and the second cavity, preventing moisture from the first cavity from entering the second cavity.

[0072] According to an exemplary embodiment of this disclosure, continued reference Figure 4 The valve assembly 120 may also include a spindle position retainer 123, which applies a force to the spindle 1221 to move the vent valve 1222 into the receiving groove 1213. The spindle position retainer 123 can drive the valve stem 122 to reset from the second position to the first position.

[0073] When the valve stem 122 is in the first position, the spindle position retainer 123 will hold the valve stem 122 in that position, thereby preventing the valve body 121 from moving relative to the container cover 110, and the receiving cavity of the container body 200 will remain isolated from the water outlet channel 111 of the container cover 110.

[0074] After the water intake process is completed, when the external force acting on the valve stem 122 is removed, the valve stem 122 will move from the second position to the first position under the action of the spindle position retainer 123. Under the action of the valve stem 122, the valve body 121 will once again fit against the bottom edge of the container cover 110. At this time, the valve body 121 will once again separate the receiving cavity of the container body 200 and the water outlet channel 111 of the container cover assembly 100.

[0075] Continue to refer to Figure 3 and Figure 4 The mandrel position retainer 123 may include a spring, but is not limited thereto. This embodiment uses a spring as an example. Specifically, the mandrel 1221 is movably sleeved within the sleeve 115, and the top end of the mandrel 1221 protrudes beyond the top end of the sleeve 115. The spring can be in a compressed state, sleeved on the outer periphery of the sleeve 115, with its top end abutting against the top of the mandrel 1221 and its bottom end abutting against the sleeve 115, but this is not a limitation.

[0076] As an example, the valve assembly 120 may also include a limiting portion 125 disposed at the top end of the spindle 1221 and above the sleeve 115, such that the limiting portion 125 is arranged in the second cavity, and the top end of the spindle position holder 123 may abut against the bottom wall of the limiting portion 125, but is not limited thereto.

[0077] In an optional embodiment, the valve assembly 120 may further include a limiting block 126. The top end of the spindle 1221 is provided with an external thread, and the limiting block 126 is provided with an internal thread that matches the external thread of the spindle 1221, so that the limiting block 126 can be threadedly connected to the spindle 1221 to axially limit the limiting part 125 and prevent the limiting part 125 from detaching from the spindle 1221.

[0078] Specifically, when the mandrel 1221 of the valve stem 122 is sleeved inside the sleeve 115, the mandrel position retainer 123 is sleeved on the outer periphery of the sleeve 115 and the limiting part 125 is sleeved on the top end of the mandrel 1221 so that the mandrel position retainer 123 is pressed under the limiting part 125. Finally, the limiting block 126 is connected to the mandrel 1221 to axially limit the limiting part 125 and prevent the limiting part 125 from detaching from the mandrel 1221. This completes the assembly of the valve stem 122.

[0079] The above embodiment describes the assembly steps after the mandrel 1221 is sleeved on the sleeve 115. Before the mandrel 1221 is sleeved on the sleeve 115, the valve body 121 and the buffer 124 (described below) can be pre-sleeved onto the mandrel 1221 in sequence. To prevent the valve body 121 from impacting the bottom edge of the container cap 110 during the process of moving towards the container cap 110 and fitting against the bottom edge of the container cap 110, the valve assembly 120 may also include the buffer 124 to apply a force to the valve stem 122 away from the container cap assembly 100.

[0080] When the valve stem 122 moves from the second position to the first position, it will move rapidly under the action of the spindle position retainer 123. In this embodiment, due to the provision of the buffer 124, the valve body 121 applies a force opposite to that of the sleeve 115, which is opposite to the force exerted on the valve stem 122 by the spindle position retainer 123. This can offset part of the force exerted on the valve stem 122 by the spindle position retainer 123, and the valve body 121 slowly moves to a sealed fit with the bottom edge of the container cap 110, reducing the impact noise during the use of the container cap assembly 100 and improving the reliability of the container cap assembly 100.

[0081] Continue to refer to Figure 4 In this embodiment, the buffer 124 may include a spring, which is sleeved on the spindle 1221 and placed in the first cavity. The buffer 124 is in a compressed state and its two ends abut against the top cavity wall and the bottom cavity wall of the first cavity, respectively, but this is not a limitation.

[0082] In this embodiment, the second cavity is the space located below the sleeve 115, but it is not limited thereto. As an example, the buffer 124 is sleeved on the spindle 1221, and its two ends abut against the top wall of the valve body 121 and the bottom wall of the sleeve 115, respectively, but it is not limited thereto.

[0083] To further improve the reliability of the valve assembly 120, the valve body 121 also includes a limiting post 1216. Specifically, the limiting post 1216 is disposed on the top of the housing 1217 and extends protruding from the top wall. As an example, the limiting post 1216 extends protruding from the circumferential edge of the mounting hole 1212. The end of the buffer member 124 is sleeved on the limiting post 1216 to prevent the buffer member 124 from moving radially along the spindle 1221 relative to the valve body 121 during the movement of the valve stem 122 relative to the sleeve 115, thereby improving the reliability of the valve assembly 120.

[0084] On the other hand, by providing a limiting post 1216 on the housing 1217, the assembly efficiency of the buffer 124 can be improved, thereby improving the assembly efficiency of the container cover assembly 100, but this is not the limitation.

[0085] As an example, the mandrel 1221 is provided with an annular groove for receiving the mandrel seal 1224, which can extend continuously in the circumference of the mandrel 1221 to form an annular shape. In an alternative embodiment, the vent gap 1223 extends from the annular groove to the top surface of the vent valve 1222, but is not limited thereto.

[0086] According to an exemplary embodiment of the present disclosure, before inserting the top end of the mandrel 1221 into the sleeve 115, the vent valve seal 1225 can be installed on the vent valve 1222, and then the top end of the mandrel 1221 can be passed through the mounting hole 1212 and the buffer 124 of the valve body 121 in sequence, and then the top end of the mandrel 1221 can be inserted into the sleeve 115.

[0087] Continue to refer to Figures 2 to 4 In this embodiment, the container cap 110 may also include a cap bottom seal 112, which is detachably connected to the bottom end of the cap body 116, so that the cap bottom seal 112 is arranged at the bottom edge of the container cap 110. When the valve stem 122 is in the first position, the cap bottom seal 112 is sealed and fitted between the bottom end of the cap body 116 and the valve body 121, which further improves the sealing performance of the container cap assembly 100 and thus improves the reliability of the container cap assembly 100.

[0088] According to an exemplary embodiment of this disclosure, the container lid assembly 100 may further include a button 140 rotatably connected to the container lid 110. For example, but not limited to, the button 140 may be rotatably connected to the container lid 110 via a pivot 141, but is not limited thereto. The tip of the valve stem 122 abuts against the button 140. During the rotation of the button 140 about the pivot 141, the valve stem 122 can reciprocate between a first position and a second position relative to the sleeve 115. Under the action of the spindle position retainer 123, the tip of the valve stem 122 remains in contact with the button 140, preventing the valve stem 122 from impacting the button 140 and generating noise when it moves from the second position to the first position.

[0089] Furthermore, to facilitate the assembly of components such as the button 140 and the limiting part 125, an opening is formed at the top of the lid body 116. To prevent external dust from entering the lid body 116, the container lid 110 may also include a cover plate 113, which covers the top opening of the lid body 116, but this is not a limitation. In fact, the space below the cover plate 113 is the second cavity of the lid body 116. In the axial direction of the container lid 110, the first cavity is located below the second cavity, and the first cavity and the second cavity are isolated to prevent moisture in the first cavity from entering the second cavity and affecting the service life of components such as the limiting part 125, the limiting pressure block 126, and the spindle position holding member 123. In addition, it also prevents debris generated by the above-mentioned components in the second cavity due to friction from entering the first cavity and entering the boiling water when taking boiling water, thus improving the safety of the container lid assembly 100.

[0090] return Figure 2 and Figure 3 According to an exemplary embodiment of this disclosure, the container lid assembly 100 further includes a locking structure 130, which is movably connected to the container lid 110 and can protrude outward from the outer peripheral wall of the container lid 110 for engaging with the opening of the container body 200, but is not limited thereto. As an example, the outer peripheral wall of the lid body 116 is provided with a sidewall through hole, which is formed to allow the second cavity to communicate with the outside through the sidewall through hole. A portion of the locking structure 130 can extend outward through the sidewall through hole to engage with the outer peripheral wall of the container lid 110.

[0091] According to an exemplary embodiment of this disclosure, at least two locking structures 130 are provided, and the at least two locking structures 130 are evenly arranged circumferentially relative to the container lid 110, but this is not a limitation. This embodiment is described using a container lid assembly 100 including two locking structures 130 as an example, wherein the direction of movement of the locking structures 130 relative to the container lid 110 is parallel to the pivot axis 141, but this is not a limitation. Each locking structure 130 may include a locking body 131 and a latch 132 connected to the locking body 131, movably connected to the container lid 110. For example, but not limited to, the locking body 131 is movably connected to the lid body 116, and the latch 132 can protrude and extend to the outer periphery of the lid body 116 through the aforementioned sidewall through-hole. In an optional embodiment, the locking body 131 is movably connected to the lid body 116 radially, but this is not a limitation.

[0092] According to an exemplary embodiment of the present disclosure, the cover plate 113 includes a cover plate body 1131 and a cover plate through hole 1132. The cover plate through hole 1132 is provided through the upper and lower sides of the cover plate 113. The user can pass his finger through the cover plate through hole 1132 and contact the locking structure 130 to operate the locking structure 130, but is not limited thereto.

[0093] Continue to refer to Figure 3 To improve the ease of use of the locking structure 130, the top wall of the cover body 1131 is recessed inward to form a locking groove 133. Users can insert their fingers through the cover through hole 1132 into the locking groove 133 to drive the locking structure 130 to move relative to the container cover 110, thereby allowing the locking tongue 132 to extend outward or retract inward through the aforementioned side wall through hole.

[0094] Continue to refer to Figure 3 To improve the reliability of the locking structure 130 and prevent the latch 132 from accidentally retracting inward, according to an exemplary embodiment of the present disclosure, the locking structure 130 further includes a locking position retainer 134, which provides a force to the locking body 131 to extend the latch 132 outward. When the latch 132 is engaged with the opening of the container body 200, the locking position retainer 134 can keep the latch 132 in that position without accidentally retracting inward, thereby improving the reliability of the locking structure 130, but is not limited thereto.

[0095] This embodiment is illustrated by taking the example of the container cap assembly 100 being detachably connected to the opening of the container body 200 by a snap-fit ​​connection. However, this is not a limitation. The container cap assembly 100 may also be configured to be detachably connected to the opening of the container body 200 by a threaded connection, all of which are within the protection scope of this disclosure.

[0096] In the description of this disclosure, it should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0097] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0098] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0099] The features, structures, or characteristics described in this disclosure can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the foregoing description to give a full understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced without one or more of the specific details described, or other methods, components, materials, etc., can be employed. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure.

Claims

1. A valve assembly, characterized in that, For installation on a container lid (110) having a water outlet channel (111), the valve assembly (120) includes a valve stem (122) and a valve body (121) connected to a first end of the valve stem (122), the valve body (121) being a hollow structure with a sealing cavity, the valve stem (122) being used to connect to the container lid (110), and the valve body (121) being used to seal or open the water outlet channel (111).

2. The valve assembly according to claim 1, characterized in that, The sealing cavity (1211) is a vacuum sealing cavity.

3. The valve assembly according to claim 2, characterized in that, The valve body (121) includes a housing (1217) and a sealing structure (1218). The housing (1217) forms the sealing cavity (1211). A vacuum port (1214) is provided on the cavity wall of the sealing cavity (1211) for drawing a vacuum into the sealing cavity (1211). The sealing structure (1218) is used to seal the vacuum port (1214).

4. The valve assembly according to claim 3, characterized in that, A recess is formed on the outer surface of the housing (1217), the vacuum port (1214) is disposed in the recess, the sealing structure (1218) is disposed in the cavity of the recess, the valve body (121) further includes a sealing plate (1215), the sealing plate (1215) is connected to the housing (1217) and seals and covers the sealing structure (1218).

5. The valve assembly according to claim 1, characterized in that, A mounting hole (1212) penetrating the thickness of the valve body (121) is formed in the middle of the valve body (121), and the first end of the valve stem (122) is movably inserted into the mounting hole (1212). The sealing cavity (1211) extends continuously around the mounting hole (1212) in the circumference, thereby forming the annular sealing cavity.

6. The valve assembly according to claim 1, characterized in that, The valve body (121) is made of metal, ceramic or glass.

7. The valve assembly according to claim 5, characterized in that, The valve stem (122) includes a spindle (1221) and an exhaust valve (1222). The exhaust valve (1222) is disposed at the bottom end of the spindle (1221). The spindle (1221) is movably inserted into the mounting hole (1212) so that the exhaust valve (1222) can block or open the gap between the spindle (1221) and the hole wall of the mounting hole (1212).

8. The valve assembly according to claim 7, characterized in that, The lower surface of the valve body (121) is provided with a receiving groove (1213), which is connected to the mounting hole (1212). The vent valve (1222) is accommodated in the receiving groove (1213) and is in sealed contact with the groove wall of the receiving groove (1213). When the vent valve (1222) moves outward relative to the receiving groove (1213), the gap between the mandrel (1221) and the hole wall of the mounting hole (1212) is opened.

9. A container lid assembly, characterized in that, The container cover assembly (100) includes a container cover (110) and a valve assembly (120) according to any one of claims 1-8, wherein the container cover (110) is provided with a water outlet channel (111), and the valve assembly (120) is movably connected to the container cover (110) such that the valve body (121) can open or seal the water outlet channel (111).

10. A thermal insulation container, characterized in that, Includes a container body (200) and a container lid assembly (100) according to claim 9, wherein the container lid (110) is capable of closing onto the opening of the container body (200).

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