Cup cover assembly and water cup

Abstract

The utility model provides a cup cover assembly and a water cup, the cup cover assembly comprises a cover body, a water blocking bolt and a sealing ring, the cover body is suitable for being installed on a cup body of the water cup, the water blocking bolt is installed in the cover body, and the sealing ring is installed outside the water blocking bolt in a sleeving mode; the water blocking bolt is provided with a first ventilation channel and a first ventilation hole, and the first ventilation hole is suitable for communicating the first ventilation channel with an inner cavity of the cup body; the sealing ring is provided with a second ventilation channel, the first end of the second ventilation channel is communicated with the first ventilation channel, the second end of the second ventilation channel is communicated with the space outside the cup, the second ventilation channel is provided with at least one target position, and the ventilation sectional area of the target position is smaller than that of the second end. The target position is different from the second end. The cup cover assembly can reduce the resistance when a user unscrews the cup cover, and meanwhile the heat preservation effect of the water cup is good.

Description

Technical Field

[0001] The present disclosure relates to the technical field of water cups, and in particular to a cup cover assembly and a water cup. Background Art

[0002] Thermos cups are very common in people's lives. After the cup cover and the cup body of the thermos cup are tightened, it can ensure that the water in the cup does not leak out.

[0003] However, after pouring hot water into the thermos cup, a large amount of water vapor will form in the empty space between the cup cover and the cup body. When these water vapor condenses into water droplets and falls, the air pressure in the empty space will be lower than the external atmospheric pressure. As a result, when the user needs to unscrew the cup cover, the resistance is large, and the operation is inconvenient. Utility Model Content

[0004] In view of this, the present disclosure provides a cup cover assembly and a water cup, which can reduce the resistance when the user unscrews the cup cover, and at the same time the water cup has a better heat preservation effect.

[0005] Specifically, the following technical solutions are included:

[0006] In a first aspect, an embodiment of the present disclosure provides a cup cover assembly, characterized in that it comprises a cover body, a water blocking plug and a sealing ring, wherein the cover body is suitable for being installed on the cup body of a water cup, the water blocking plug is installed in the cover body, and the sealing ring is sleeved outside the water blocking plug;

[0007] The water blocking plug has a first ventilation channel and a first ventilation hole, and the first ventilation hole is suitable for connecting the first ventilation channel with the inner cavity of the cup body;

[0008] The sealing ring has a second ventilation channel, a first end of the second ventilation channel is connected to the first ventilation channel, a second end of the second ventilation channel is connected to the space outside the cup, the second ventilation channel has at least one target position, the ventilation cross-sectional area of ​​the target position is smaller than the ventilation cross-sectional area of ​​the second end, and the target position is different from the second end.

[0009] Optionally, the sealing ring can undergo elastic deformation, so that the ventilation cross-sectional area of ​​the second ventilation channel changes.

[0010] Optionally, the ventilation cross-sectional area of ​​the second ventilation channel gradually decreases from the second end to the first end.

[0011] Optionally, the ventilation cross-sectional area of ​​the first end of the second ventilation channel is 0.1-1mm 2 within the range.

[0012] Optionally, the second ventilation channel includes a plurality of sub-channels connected in series, and at least one of the sub-channels has a gradually decreasing ventilation cross-sectional area in a direction from the second end to the first end.

[0013] Optionally, in the plurality of sub-channels connected in series, the ventilation cross-sectional area of ​​each sub-channel gradually decreases in the direction from the second end to the first end;

[0014] The multiple sections of sub-channels connected in series include a first sub-channel and a second sub-channel, the first sub-channel is closer to the second end than the second sub-channel, and the ventilation cross-sectional area of ​​the first sub-channel on the side close to the first end is smaller than the ventilation cross-sectional area of ​​the second sub-channel on the side close to the second end.

[0015] Optionally, the second ventilation channel has at least one minimum ventilation position, the minimum ventilation position has a minimum ventilation cross-sectional area, and the minimum ventilation cross-sectional area is between 0.1 and 1 mm. 2 within the range.

[0016] Optionally, the first ventilation hole is a variable diameter hole, and the diameter of the first ventilation hole on a side close to the center of the cup body is smaller than the diameter of the first ventilation hole on a side away from the center of the cup body.

[0017] Optionally, the cup cover assembly further includes a one-way valve, the one-way valve having a mounting portion and a valve body portion connected thereto, the mounting portion being mounted on the water blocking plug, and the valve body portion being located on a side of the water blocking plug close to the center of the cup body;

[0018] When the valve body is subjected to force, it can switch between a first state and a second state. In the first state, the valve body blocks the connection between the first air hole and the inner cavity of the cup body. In the second state, the valve body connects the first air hole with the inner cavity of the cup body.

[0019] Optionally, the water blocking plug has a first clamping groove, the first clamping groove is communicated with the first ventilation channel, the sealing ring has a protrusion, the protrusion is sealed and clamped in the first clamping groove, and the second ventilation channel is formed in the protrusion; and / or

[0020] The water blocking plug has a second clamping structure, the sealing ring has a third clamping structure, and the second clamping structure is sealed and clamped with the third clamping structure;

[0021] Among them, one of the second clamping structure and the third clamping structure is a convex block structure or a convex ring structure, and the other of the second clamping structure and the third clamping structure is a groove structure, and the groove bottom of the groove structure also has a plurality of reinforcing ribs distributed at intervals.

[0022] Optionally, the cover body has a first convex ring protruding toward the bottom of the cup body, and the water blocking plug has a second convex ring, which is sleeved outside the first convex ring.

[0023] Optionally, the number of the first ventilation holes is at least two, and / or the number of the second ventilation channels is at least two.

[0024] In a second aspect, an embodiment of the present disclosure provides a water cup, comprising a cup body and any one of the cup cover assemblies described above.

[0025] Optionally, the cup body includes an inner cup and an outer cup, and the outer cup is sleeved outside the inner cup;

[0026] The sealing ring of the cup cover assembly abuts against a first position of the inner wall of the inner cup, and the second end of the second ventilation channel of the sealing ring is located on a side of the first position away from the bottom of the cup body.

[0027] The disclosed embodiment provides a cup cover assembly and a water cup, wherein the sealing ring of the cup cover assembly is sleeved outside the water blocking plug, and the water blocking plug is installed on the cover body. When the cup cover assembly and the cup body of the water cup are tightened, it can ensure that the water in the water cup cannot overflow. The water blocking plug also has a first ventilation channel and a first ventilation hole, and the first ventilation hole connects the first ventilation channel with the inner cavity of the cup body; the sealing ring has a second ventilation channel, and the first end of the second ventilation channel is connected to the first ventilation channel, and the second end is connected to the space outside the cup. In this way, when the cup cover assembly is unscrewed, if the air pressure in the cup is low, the air outside the cup can enter the inner cavity of the cup body through the second ventilation channel, the first ventilation channel and the first ventilation hole in sequence, and the air pressure of the free space between the cup body and the cup cover is adjusted to be closer to the atmosphere, so that the resistance is reduced during the operation of the user unscrewing the cup cover. Furthermore, since the ventilation cross-sectional area at the target position of the second ventilation channel is smaller than the ventilation cross-sectional area at the second end, the flow rate of the airflow can be relatively large during the air intake process, while the overflow rate of the water vapor in the cup body is relatively low after the lid is closed, thereby ensuring a good thermal insulation effect of the water cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A schematic diagram of the exploded structure of a water cup provided in an embodiment of the present disclosure;

[0030] Figure 2 A schematic structural diagram of a cup cover assembly provided in an embodiment of the present disclosure;

[0031] Figure 3 A schematic diagram of the exploded structure of a cup cover assembly provided in an embodiment of the present disclosure;

[0032] Figure 4 A schematic cross-sectional view of a water cup provided in an embodiment of the present disclosure;

[0033] Figure 5 for Figure 4 A partial enlarged schematic diagram of the structure shown at frame A;

[0034] Figure 6 A schematic diagram of the shape of a second ventilation channel of a sealing ring provided in an embodiment of the present disclosure;

[0035] Figure 7 A schematic diagram of the structure of another water cup provided by an embodiment of the present disclosure;

[0036] Figure 8 A schematic diagram of an air intake process of a water cup provided in an embodiment of the present disclosure;

[0037] Fig. 9 A schematic diagram of the structure of a water blocking plug provided in an embodiment of the present disclosure;

[0038] Fig.10 A schematic diagram of the structure of a water blocking plug provided in an embodiment of the present disclosure from another perspective;

[0039] Fig.11 A schematic diagram of the structure of a sealing ring provided in an embodiment of the present disclosure;

[0040] Fig.12 A schematic structural diagram of a cover body of a cup cover assembly provided in an embodiment of the present disclosure.

[0041] The reference numerals in the figures represent respectively:

[0042] 1-cup lid assembly;

[0043] 11-cover body; 111-first convex ring; 1111-first reinforcing rib; 12-threaded portion;

[0044] 12-water blocking plug; 121-first ventilation channel; 122-first ventilation hole; 123-first clamping groove; 124-second clamping structure; 125-second convex ring;

[0045] 13-seal ring; 131-second ventilation channel; 1310-sub-channel; 13101-first sub-channel; 13102-second sub-channel; 1311-first end; 1312-second end; x-minimum ventilation position; 132-bump; 133-third clamping structure; y-reinforcement rib; z-target position;

[0046] 14- one-way valve; 141- mounting portion; 142- valve body portion;

[0047] 2-cup body; 21-inner cup; g-first position; 22-outer cup; 23-coast pad.

[0048] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0050] The directional nouns involved in the embodiments of the present disclosure, such as "upper", "lower", "side", etc., are generally based on the relative directional relationship between the structures when the water cup or cup cover assembly is usually arranged, and these directional nouns are used only to more clearly describe the relationship between structures, not to describe the absolute direction. When the water cup or cup cover assembly is placed in different postures, the direction may change, for example, "upper" and "lower" may be interchangeable. In general, in the embodiments of the present disclosure, "upper" and "lower" can be based on the ground, the side farther away from the ground is the upper side, and the side closer to the ground is the lower side.

[0051] Unless otherwise defined, all technical terms used in the embodiments of the present disclosure have the same meanings as commonly understood by those of ordinary skill in the art.

[0052] In order to make the technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0053] In a first aspect, an embodiment of the present disclosure provides a cup cover assembly. Figure 1-3 The cup cover assembly 1 comprises a cover body 11, a water blocking plug 12 and a sealing ring 13. The cover body 11 is suitable for being installed on the cup body 2 of the water cup. The water blocking plug 12 is installed in the cover body 11, and the sealing ring 13 is sleeved outside the water blocking plug 12.

[0054] Combination Figure 4-5 The water blocking plug 12 has a first ventilation channel 121 and a first ventilation hole 122, and the first ventilation hole 122 is suitable for connecting the first ventilation channel 121 with the inner cavity of the cup body 2;

[0055] The sealing ring 13 has a second ventilation channel 131, a first end 1311 of the second ventilation channel 131 is connected to the first ventilation channel 121, a second end 1312 of the second ventilation channel 131 is connected to the space outside the cup, and the second ventilation channel 131 has at least one target position z, a ventilation cross-sectional area of ​​the target position z is smaller than that of the second end 1312, and the target position z is different from the second end 1312.

[0056] It should be noted that, in some embodiments, the cup body 2 of the water cup may include two layers: an outer cup 22 and an inner cup 21, so that the heat preservation performance of the water cup can be improved. The inner cup 21 can be fixed in the outer cup 22 through the cup mouth, and a coaster 23 can be provided at the bottom of the outer cup 22. The cup cover assembly and the cup body can be connected by threads. The aforementioned "connected with the inner cavity of the cup body 2" may refer to connected with the inner cavity of the inner cup 21. The aforementioned "space outside the cup" refers to the space outside the cup body and the cup cover of the water cup, and the space outside the cup can be regarded as having a standard atmospheric pressure (under normal conditions). The aforementioned "target position" can be set between the first end and the second end or directly at the first end, and it is only necessary to ensure that the ventilation cross-sectional area of ​​this position is smaller than the ventilation cross-sectional area of ​​the second end, so that the airflow can flow mainly from outside the cup to inside the cup. Figure 5 In the structure shown, the target position z actually includes the position of the first end and the position between the second end and the first end. Of course, in order to better ensure the unidirectional flow of the airflow, the difference between the ventilation cross-sectional area of ​​the target position and the ventilation cross-sectional area of ​​the second end can be greater than or equal to the area threshold, which can be obtained by experimental test, simulation analysis or theoretical analysis. For example, the area threshold is 0.05mm 2 .

[0057] In this embodiment, the sealing ring of the cup cover assembly is sleeved on the water blocking plug, and the water blocking plug is installed on the cover body. When the cup cover assembly is tightened with the cup body of the water cup, the sealing ring seals the gap between the cup body and the cup cover to ensure that the water in the water cup cannot overflow. The water blocking plug also has a first ventilation channel and a first ventilation hole. The first ventilation hole connects the first ventilation channel with the inner cavity of the cup body; the sealing ring has a second ventilation channel. The first end of the second ventilation channel is connected to the first ventilation channel, and the second end is connected to the space outside the cup. In this way, combined with Figure 8 As can be understood from the arrows in the figure, when the cup lid assembly is unscrewed, if the air pressure in the cup is low, the air outside the cup can enter the inner cavity of the cup body through the second ventilation channel, the first ventilation channel and the first ventilation hole in sequence, and the air pressure of the free space between the cup body and the cup lid is adjusted to be closer to the atmosphere, so that the resistance is reduced during the operation of the user unscrewing the cup lid. Furthermore, since the ventilation cross-sectional area at the target position of the second ventilation channel is smaller than the ventilation cross-sectional area at the second end, the flow rate of the air flow can be relatively large during the air intake process, while the overflow rate of the water vapor in the cup body after closing the lid is relatively low, which can ensure a good heat preservation effect of the water cup.

[0058] In some embodiments, the sealing ring 13 can undergo elastic deformation, so that the ventilation cross-sectional area of ​​the second ventilation channel 131 changes.

[0059] Based on this setting, it can be ensured that when the air pressure inside the cup is lower than the air pressure outside the cup, the atmosphere outside the cup can be filled into the second ventilation channel under the action of the pressure difference, so that the second ventilation channel expands, thereby increasing the speed of air intake. In the case of storing hot water, when the cup cover assembly is tightened on the cup body, due to the small ventilation cross-sectional area at the target position in the second ventilation channel, a large amount of water vapor evaporating in the cup can easily squeeze the sealing ring, causing the second ventilation channel to close or shrink at the target position, thereby reducing the speed of water vapor overflow and improving the heat preservation effect of the water cup. Optionally, the sealing ring can be partially or entirely made of elastic material, such as rubber or silicone.

[0060] In some embodiments, reference Figure 5 The ventilation cross-sectional area of ​​the second ventilation channel 131 gradually decreases from the second end 1312 to the first end 1311 .

[0061] Based on the above arrangement, it can be ensured that the intake airflow can flow more smoothly into the space inside the cup without too much resistance. In the case where the sealing ring can be elastically deformed, the above arrangement can ensure that the intake airflow can more easily increase the ventilation cross-sectional area of ​​the second ventilation channel and increase the intake speed. Optionally, the gradual decrease here can be linear decrease or nonlinear decrease, for example, the law of the decrease of the ventilation cross-sectional area can conform to a linear function, a parabola, an elliptical curve, etc.

[0062] Optionally, the ventilation cross-sectional area of ​​the first end 1311 of the second ventilation channel 131 is 0.1-1 mm 2 In this way, it can be ensured that the first end of the second ventilation channel has a better blocking effect on the water vapor in the cup, thereby improving the heat preservation effect of the water cup. In the case where the sealing ring can be elastically deformed, the above arrangement can ensure that the water vapor can easily squeeze and close the first end of the second ventilation channel.

[0063] In some embodiments, in combination Figure 6 The second ventilation channel 131 includes a plurality of sub-channels 1310 connected in series, and at least one sub-channel 1310 has a gradually decreasing ventilation cross-sectional area in the direction from the second end 1312 to the first end 1311 .

[0064] In this embodiment, the second ventilation channel can be at least partially formed by a plurality of sub-channels connected in series, and at least one sub-channel has a gradually decreasing ventilation cross-sectional area in the direction from the second end to the first end, so that the flow of gas entering from outside the cup is not affected, and the water vapor in the cup can also be effectively blocked when it overflows. That is, this embodiment provides another shape setting scheme for the second ventilation channel, in which a plurality of sub-channels can be used to enhance the barrier effect on water vapor, so that the dimensional accuracy requirement for the target position of the second ventilation channel is not too high, and the difficulty and cost of preparing the sealing ring can be reduced.

[0065] Optional, combined Figure 6 In the multiple sub-channels 1310 connected in series, the ventilation cross-sectional area of ​​each sub-channel 1310 gradually decreases in the direction from the second end 1312 to the first end 1311;

[0066] The multiple sub-channels 1310 connected in series include a first sub-channel 13101 and a second sub-channel 13102. The first sub-channel 13101 is closer to the second end 1312 than the second sub-channel 13102. The ventilation cross-sectional area of ​​the first sub-channel 13101 on the side close to the first end 1311 is smaller than the ventilation cross-sectional area of ​​the second sub-channel 13102 on the side close to the second end 1312.

[0067] Combination Figure 6 With the help of the above-mentioned multiple sub-channels, it can be ensured that water vapor needs to pass through multiple blocking channels when overflowing. Even if a small amount of water vapor enters a sub-channel closest to the first ventilation channel, the water vapor can be easily blocked by the next sub-channel, which is conducive to further improving the heat preservation effect of the water cup. At the same time, the above-mentioned setting can reduce the dimensional accuracy requirements for the narrower position in the second ventilation channel and reduce the difficulty of preparing the sealing ring.

[0068] In some embodiments, in combination Figure 6 The second ventilation channel 131 has at least one minimum ventilation position x, and the minimum ventilation position x has a minimum ventilation cross-sectional area, and the minimum ventilation cross-sectional area is 0.1-1mm 2 within the range.

[0069] Combination Figure 6 In the case of multiple sub-channels connected in series, the minimum ventilation position x may be a position of a sub-channel close to the first end. By setting the ventilation cross-sectional area of ​​this position within the above range, it is possible to ensure that the entire second ventilation channel has a good barrier effect on water vapor, while ensuring that air outside the cup can easily enter when the cup lid is unscrewed.

[0070] In some embodiments, reference Figure 7The first vent hole 122 is a variable diameter hole, and the diameter of the first vent hole 122 on the side close to the center of the cup body 2 is smaller than the diameter of the side away from the center of the cup body 2.

[0071] Through the above arrangement, it can be ensured that when the cup lid is unscrewed, air enters the inner cavity of the cup body from the first vent smoothly, reducing the resistance when unscrewing the cup lid, and water vapor in the inner cavity of the cup body is not easy to overflow from the first vent, ensuring the heat preservation effect of the water cup.

[0072] In some embodiments, in combination Figure 7 The cup cover assembly further includes a one-way valve 14, which has a mounting portion 141 and a valve body portion 142 connected thereto, wherein the mounting portion 141 is mounted on the water blocking plug 12, and the valve body portion 142 is located on one side of the water blocking plug 12 close to the center of the cup body 2;

[0073] When the valve body 142 is subjected to force, it can switch between a first state and a second state. In the first state, the valve body 142 blocks the connection between the first air hole 122 and the inner cavity of the cup body 2. In the second state, the valve body 142 connects the first air hole 122 with the inner cavity of the cup body 2.

[0074] It should be noted that the installation of the mounting portion and the water blocking plug has a margin in the axial direction of the water blocking plug (for example, when the mounting portion is installed in the mounting hole on the water blocking plug, the mounting portion can move to a certain extent relative to the water blocking plug in the axial direction thereof). In this way, the valve body portion can change the contact state with the water blocking plug when subjected to force, for example, from close contact to no direct contact. Since the valve body portion is located on the side of the water blocking plug close to the center of the cup body, when the air pressure in the cup is high, the valve body portion is squeezed by the water vapor in the cup. If the squeezing force is greater than its own gravity, the valve body portion can be close to the water blocking plug, thereby blocking the connection between the second vent and the inner cavity of the cup body. If the air pressure in the cup is low and the user wants to unscrew the cup lid, the atmospheric pressure outside the cup and the gravity of the valve body portion itself cause it to fall, and there is no direct contact with the water blocking plug. At this time, the first vent can be connected to the inner cavity of the cup body.

[0075] It can be seen that in this embodiment, the valve body of the one-way valve can completely block the connection between the first vent hole and the inner cavity of the cup body when the cup needs to be kept warm, so that water vapor cannot escape. When the cup lid needs to be unscrewed, the air outside the cup can enter the inner cavity of the cup body through the first vent hole, reducing the resistance of the user's operation.

[0076] Optional, combined Figure 7 The valve body 142 has a cap-shaped structure, which bulges away from the water blocking plug 12, and the orthographic projection of the cap-shaped structure on the water blocking plug 12 covers the first vent 122. In this way, it can ensure that the valve body can more accurately regulate the communication state between the first vent and the inner cavity of the cup body.

[0077] In some embodiments, reference Figure 9-11 The water blocking plug 12 has a first clamping groove 123 , which is communicated with the first ventilation channel 121 . The sealing ring 13 has a protrusion 132 , which is sealed and clamped in the first clamping groove 123 , and the second ventilation channel 131 is formed in the protrusion 132 .

[0078] In this embodiment, the first clamping groove of the water blocking plug is connected to the first ventilation channel, and the convex block where the second ventilation channel of the sealing ring is located is sealed and clamped in the first clamping groove, thereby enabling the second ventilation channel to be connected to the first ventilation channel. At the same time, with the cooperation of the first clamping groove and the convex block, the sealing ring and the water blocking plug cannot rotate relative to each other, thereby ensuring the stable connection of the two ventilation channels.

[0079] In some embodiments, in combination Figure 8-9 The water blocking plug 12 has a second clamping structure 124, and the sealing ring 13 has a third clamping structure 133. The second clamping structure 124 is sealed and clamped with the third clamping structure 133;

[0080] One of the second clamping structure 124 and the third clamping structure 133 is a convex block structure or a convex ring structure, and the other of the second clamping structure 124 and the third clamping structure 133 is a groove structure.

[0081] In this embodiment, the water blocking plug and the sealing ring are also installed and fixed to each other by means of the cooperation of the second clamping structure and the third clamping structure, so that the installation stability of the two is relatively high. Optionally, the aforementioned groove-shaped structure can be extended into a circular ring shape to better fit the aforementioned convex ring structure.

[0082] Optional, combined Fig.11 The bottom of the groove structure also has a plurality of spaced reinforcing ribs y. These reinforcing ribs can improve the installation stability between the water stopper and the sealing ring, making the connection between the two more stable.

[0083] In some embodiments, in combination Figure 8 , 11 and 12 , the cover body 11 has a first convex ring 111 protruding toward the bottom of the cup body 2 , and the water blocking plug 12 has a second convex ring 125 , which is sleeved outside the first convex ring 111 .

[0084] With the cooperation of the first convex ring and the second convex ring, a stable connection between the water blocking plug and the cover body can be ensured.

[0085] Optionally, after the water blocking plug is mounted on the cover body with the aid of the convex ring, it can also be fixed to the cover body by ultrasonic welding on the inner side of the cover body to further enhance the connection stability with the cover body.

[0086] Optional, combined Fig.12 The first convex ring 111 has a first reinforcing rib 1111 in it. With the help of the first reinforcing rib, the rigidity of the connection position between the cover body and the water stopper can be improved to ensure a more stable connection between the two.

[0087] In some embodiments, reference Figure 8 The number of the first ventilation holes 122 is at least two, and / or the number of the second ventilation channels 131 is at least two.

[0088] In this embodiment, by setting a plurality of first ventilation holes and / or second ventilation channels, it can be ensured that the air outside the cup can more easily enter the inner cavity of the cup body when the cup lid is unscrewed. It should be noted that the number and shape of the first ventilation channels can be adaptively adjusted according to the number and position of the second ventilation channels. Figure 8 When the two second ventilation channels are symmetrically arranged on both sides of the sealing ring, the first ventilation channel can be connected to a second ventilation channel at both ends, respectively. Fig.10 The first ventilation channel can be configured as a strip-shaped groove structure. When the number of the second ventilation channels is greater, the first ventilation channel can also be formed by a plurality of cross-connected strip-shaped groove structures, or can be directly expressed as a disc-shaped ventilation space.

[0089] To sum up, the cup lid assembly provided in the embodiment of the present disclosure can allow the air outside the cup to quickly enter the inner cavity of the cup body when the user needs to unscrew the cup lid, so that the air pressure in the inner cavity of the cup is close to the external air pressure, thereby reducing the resistance when the user unscrews the cup lid; and when hot water needs to be stored, the water vapor evaporating in the cup will squeeze the ventilation channel, making the ventilation cross-sectional area of ​​the ventilation channel smaller or directly closed, thereby preventing water vapor from overflowing and improving the thermal insulation effect of the water cup.

[0090] In a second aspect, the present disclosure provides a water cup. Figure 1 The water cup comprises a cup body 2 and any cup cover assembly 1 as described above.

[0091] Optional, combined Figure 5 The cup body 2 includes an inner cup 21 and an outer cup 22, and the outer cup 22 is mounted outside the inner cup 21;

[0092] The sealing ring 13 of the cup cover assembly 1 abuts against the inner wall of the inner cup 21 at a first position g, and the second end 1312 of the second ventilation channel 131 of the sealing ring 13 is located at a side of the first position g away from the bottom of the cup body 2 .

[0093] Based on the above settings, it can be ensured that the cup body and the cup cover assembly are sealed with the help of a sealing ring, and the water in the cup will not leak out from the installation gap between the two, let alone leak out from the ventilation channel. The double-layer design of the inner cup and the outer cup can improve the heat preservation effect of the water cup. It should be noted that the bottom of the aforementioned cup body refers to the side of the water cup that is closer to the ground when the water cup is normally placed, and normal placement refers to the placement of the water cup with the mouth of the cup facing upward.

[0094] The water cup provided in the embodiment of the present disclosure has the aforementioned cup lid assembly, which can allow the air outside the cup to quickly enter the inner cavity of the cup body when the user needs to unscrew the cup lid, so that the air pressure in the inner cavity of the cup is close to the external air pressure, thereby reducing the resistance when the user unscrews the cup lid; and when hot water needs to be stored, the water vapor evaporating in the cup will squeeze the ventilation channel, making the ventilation cross-sectional area of ​​the ventilation channel smaller or directly closed, thereby avoiding overflow of water vapor and improving the thermal insulation effect of the water cup.

[0095] In the present disclosure, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more, unless explicitly defined otherwise.

[0096] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are intended to be exemplary only.

[0097] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A cup cover assembly, characterized in that: The water-blocking plug (12) comprises a cover body (11), a water-blocking plug (12) and a sealing ring (13); the cover body (11) is suitable for being installed on the cup body (2) of the water cup; the water-blocking plug (12) is installed inside the cover body (11); and the sealing ring (13) is sleeved outside the water-blocking plug (12); The water blocking plug (12) has a first ventilation channel (121) and a first ventilation hole (122), and the first ventilation hole (122) is suitable for connecting the first ventilation channel (121) with the inner cavity of the cup body (2); The sealing ring (13) has a second ventilation channel (131), the first end (1311) of the second ventilation channel (131) is connected to the first ventilation channel (121), the second end (1312) of the second ventilation channel (131) is connected to the space outside the cup, and the second ventilation channel (131) has at least one target position (z), the ventilation cross-sectional area of ​​the target position (z) is smaller than the ventilation cross-sectional area of ​​the second end (1312), and the target position (z) is different from the second end (1312).

2. The cup cover assembly according to claim 1, characterized in that: The sealing ring (13) can undergo elastic deformation, so that the ventilation cross-sectional area of ​​the second ventilation channel (131) changes.

3. The cup cover assembly according to claim 1, characterized in that: The ventilation cross-sectional area of ​​the second ventilation channel (131) gradually decreases from the second end (1312) to the first end (1311).

4. The cup cover assembly according to claim 3, characterized in that: The ventilation cross-sectional area of ​​the first end (1311) of the second ventilation channel (131) is in the range of 0.1-1 mm 2 within the range.

5. The cup cover assembly according to claim 1, characterized in that: The second ventilation channel (131) includes a plurality of sub-channels (1310) connected in series, and at least one of the sub-channels (1310) has a gradually decreasing ventilation cross-sectional area in the direction from the second end (1312) to the first end (1311).

6. The cup cover assembly according to claim 5, characterized in that: In the plurality of sub-channels (1310) connected in series, the ventilation cross-sectional area of ​​each sub-channel (1310) gradually decreases in the direction from the second end (1312) to the first end (1311); The multiple sections of sub-channels (1310) connected in series include a first sub-channel (13101) and a second sub-channel (13102), wherein the first sub-channel (13101) is closer to the second end (1312) than the second sub-channel (13102), and the ventilation cross-sectional area of ​​the first sub-channel (13101) on the side close to the first end (1311) is smaller than the ventilation cross-sectional area of ​​the second sub-channel (13102) on the side close to the second end (1312).

7. The cup cover assembly according to any one of claims 1 to 6, characterized in that: The second ventilation channel (131) has at least one minimum ventilation position (x), and the minimum ventilation position (x) has a minimum ventilation cross-sectional area, and the minimum ventilation cross-sectional area is between 0.1 and 1 mm. 2 within the range.

8. The cup cover assembly according to any one of claims 1 to 6, characterized in that: The first ventilation hole (122) is a variable diameter hole, and the diameter of the first ventilation hole (122) on the side close to the center of the cup body (2) is smaller than the diameter of the side away from the center of the cup body (2).

9. The cup cover assembly according to any one of claims 1 to 6, characterized in that: The cup cover assembly further comprises a one-way valve (14), the one-way valve (14) comprising a mounting portion (141) and a valve body portion (142) connected to each other, the mounting portion (141) being mounted on the water blocking plug (12), and the valve body portion (142) being located on a side of the water blocking plug (12) close to the center of the cup body (2); The valve body (142) can switch between a first state and a second state when subjected to force. In the first state, the valve body (142) blocks the connection between the first air hole (122) and the inner cavity of the cup body (2). In the second state, the valve body (142) enables the first air hole (122) to communicate with the inner cavity of the cup body (2).

10. The cup cover assembly according to any one of claims 1 to 6, characterized in that: The water blocking plug (12) has a first clamping groove (123), the first clamping groove (123) is communicated with the first ventilation channel (121), the sealing ring (13) has a protrusion (132), the protrusion (132) is sealed and clamped in the first clamping groove (123), and the second ventilation channel (131) is formed in the protrusion (132); and / or The water blocking plug (12) has a second clamping structure (124), and the sealing ring (13) has a third clamping structure (133), and the second clamping structure (124) is sealed and clamped with the third clamping structure (133); wherein one of the second clamping structure (124) and the third clamping structure (133) is a convex block structure or a convex ring structure, and the other of the second clamping structure (124) and the third clamping structure (133) is a groove structure, and the groove bottom of the groove structure also has a plurality of reinforcing ribs (y) distributed at intervals.

11. The cup cover assembly according to any one of claims 1 to 6, characterized in that: The cover body (11) has a first convex ring (111) protruding toward the bottom of the cup body (2) inside, and the water blocking plug (12) has a second convex ring (125), and the second convex ring (125) is sleeved outside the first convex ring (111).

12. The cup cover assembly according to any one of claims 1 to 6, characterized in that: The number of the first ventilation holes (122) is at least two, and / or the number of the second ventilation channels (131) is at least two.

13. A water cup, characterized in that: It comprises a cup body (2) and a cup cover assembly (1) as claimed in any one of claims 1 to 12.

14. The water cup according to claim 13, characterized in that: The cup body (2) comprises an inner cup (21) and an outer cup (22), wherein the outer cup (22) is sleeved outside the inner cup (21); The sealing ring (13) of the cup cover assembly (1) abuts against the inner wall of the inner cup (21) at a first position (g), and the second end (1312) of the second ventilation channel (131) of the sealing ring (13) is located on the side of the first position (g) away from the bottom of the cup body (2).

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