Cover body structure and drinking water container with same

Abstract

The invention discloses a cover body structure and a drinking water container with the cover body structure, the cover body structure comprises a cup cover and a straw structure, the cup cover can seal a cup body, and the cup cover comprises a cover body and a handle; a mounting channel penetrating through the upper portion and the lower portion of the cover body is arranged on the cover body, the straw structure penetrates through the cover body through the mounting channel, a pressure relief device is arranged in the cup cover and comprises an air guide channel, an air valve structure and a switch structure, the air guide channel is communicated with the bottom of the cover body and the interior of the cover body or the top of the cover body, and the switch structure comprises an acting part and an operating part. During use, the pressing surface is operated to drive the acting part to drive the air valve structure to conduct the air guide channel, so that the cavity is communicated with the interior of the cup cover or the upper portion of the cup cover, air pressure balance is formed, and a user can complete suction and drinking through one-hand operation, drink after pressing and seal after loosening the hand.

Description

Technical Field

[0001] The present invention relates to the field of daily necessities, and particularly to a lid structure and a drinking container provided with the lid structure. Background Art

[0002] In currently common straw thermos cups or straw cups on the market, no air valve structure is provided. If the cup body has a good sealing effect for heat preservation or carrying, when the temperature of the liquid in the cup changes, such as when a hot drink cools, or the ambient air pressure changes, such as in high altitude areas, the air pressure difference inside and outside the cup will increase significantly, making it difficult for users to suck water normally through the straw. If the sealing effect of the cup body is poor, although normal drinking through the straw can be ensured, when the cup body shakes violently or is placed obliquely, the liquid in the cup is likely to overflow from unsealed places such as the connection between the cup lid and the straw connection, posing a hygiene hazard and inconvenience in use. In addition, although some straw cup products are provided with simple air valves, most of them are passive one-way valve designs, which can only automatically balance the air pressure through the flow of liquid and cannot achieve active human control, and can only ensure that the drinking of the cup is not affected. However, when in strenuous exercise or placed upside down, the liquid is very likely to overflow from the straw opening, posing a hygiene hazard and inconvenience in use. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides a lid structure, including a cup lid and a straw structure. The cup lid can be detachably connected to an external cup body and close the chamber for holding liquid in the cup body. The cup lid includes a lid body and a handle connected to the side of the lid body.

[0004] An installation channel penetrating the upper and lower parts of the lid body is provided on the lid body. The straw structure is connected to the lid body through the installation channel and penetrates the lid body. The drinking end of the straw structure is located at the top of the lid body.

[0005] The cup lid is provided with a pressure relief device. The pressure relief device includes a gas guide channel provided in the lid body, a gas valve structure capable of opening and closing the gas guide channel, and a switch structure for driving the movement of the gas valve structure.

[0006] One end of the gas guide channel is arranged at the bottom of the lid body, and the other end of the gas guide channel communicates with the inside of the lid body or the top of the lid body.

[0007] The switch structure includes an acting member and an operating member, and the acting member is connected to the operating member. An installation through hole is provided in the handle. A part of the operating member is exposed outside the handle through the installation through hole and is provided with a pressing surface for operation. When the cup lid is connected to the external cup body, the pressing surface can drive the acting member to move after receiving an external action to drive the gas valve structure to conduct the gas guide channel, so that the cavity in the connected external cup body can communicate with the inside of the cup lid or above the cup lid through the gas guide channel.

[0008] Preferably, the cover body includes an upper cover body and a lower cover body. The upper cover body and the lower cover body surround to form a cover body space, and the lower cover body can close the opening; a gas guiding channel is arranged on the lower cover body. The air outlet of the gas guiding channel is located at the bottom of the lower cover body, and the air inlet of the gas guiding channel is located at the top of the lower cover body, for communicating the cover body space with the chamber.

[0009] Preferably, the air valve structure includes a transmission member, a closing member for blocking the gas guiding channel, and a reset member. The transmission member is respectively connected to the closing member and the reset member;

[0010] The reset member can keep the closing member at a first position where the gas guiding channel is blocked when the transmission member is not subjected to an external force; the switch structure can drive the transmission member to move after the operating member receives an external action, driving the closing member to leave the first position and move to a second position where the gas guiding channel is opened, so that the cavity can communicate with the cover body space through the gas guiding channel.

[0011] Preferably, the transmission member is a columnar body arranged along the gas guiding channel. The columnar body can move axially in the gas guiding channel, and a closing member is connected to the columnar body; one end of the columnar body away from the bottom of the lower housing is provided with a pressing portion in contact with the switch structure; the reset member is a compression spring sleeved on the columnar body. A first limiting member is provided on the gas guiding channel, and a second limiting member is provided on the columnar body near the pressing portion. The two ends of the compression spring are respectively connected to the first limiting member and the second limiting member.

[0012] Preferably, the closing member is fixed to one end of the columnar body near the bottom of the cup cover. When the closing member is at the first position, the side of the closing member close to the columnar body abuts against and closes the outer edge of the air outlet of the gas guiding channel.

[0013] The first limiting member is a convex portion formed by a circumferential protrusion on the inner wall of the gas guiding channel, and the second limiting member is a convex cover plate installed circumferentially at one end of the columnar body near the pressing portion. The two ends of the compression spring are respectively connected to the upper surface of the convex portion and the lower surface of the convex cover plate.

[0014] Preferably, a convex edge protruding upward is provided along the edge of the air inlet of the gas guiding channel at the top of the lower cover body, and a convex ring bent downward is provided on the outer edge of the convex cover plate; when the closing member is at the second position, the convex ring can be clamped outside the convex edge.

[0015] Preferably, at least one air guide hole is provided on the convex cover plate; a groove corresponding to the outer shape of the closing member is provided at the bottom of the lower cover body, and the air outlet of the gas guiding channel is provided at the bottom of the groove.

[0016] The closure includes an extrusion part connected to the end of the columnar body and a rubber seal sleeved on the columnar body. The upper side of the extrusion part is connected to the lower side of the rubber seal. When the closure is in the first position, the upper side of the extrusion part abuts against the outer edge of the air outlet of the air guide channel through the rubber seal to close the air guide channel.

[0017] Preferably, it includes a cup body and a lid structure as described in any one of claims 1-7. A chamber for containing liquid is provided inside the cup body. An opening communicating with the chamber is provided at the upper part of the cup body. The cup lid can close the opening. When the cup lid closes the opening, the pressing surface can drive the acting part to move after being externally actuated to drive the air valve structure to conduct the air guide channel, so that the cavity inside the connected external cup body can communicate with the inside of the cup lid or above the cup lid through the air guide channel.

[0018] Preferably, the acting part includes a rotating part, an abutting part and a connecting part. The rotating part is arranged at one end of the acting part away from the operating part. The connecting part is connected to the operating part and can drive the acting part to rotate synchronously with the operating part when the pressing surface is operated. The lower end of the abutting part abuts against the air valve structure. When the pressing surface is operated, the connecting part drives the abutting part to press down the air valve structure to open the air guide channel.

[0019] Preferably, the abutting part is arranged between the connecting part and the rotating part. The abutting part further includes an avoidance hole. The straw structure is located on one side of the air guide channel. The avoidance hole is arranged corresponding to the straw structure. When the pressing surface is operated and the connecting part drives the abutting part to press down the air valve structure, there is a space between the straw structure and the abutting part around the avoidance hole.

[0020] The lid structure disclosed in the present invention and a drinking container provided with the lid structure are provided with a pressure relief device inside the cup lid of the lid structure. The pressure relief device includes an air guide channel provided in the lid body, an air valve structure capable of opening and closing the air guide channel, and a switch structure for driving the movement of the air valve structure. The air guide channel communicates the bottom of the lid body with the inside of the lid body or the top of the lid body. The switch structure includes an acting part and an operating part. The acting part is connected to the operating part. An installation through hole is provided in the handle. The operating part is provided with a pressing surface exposed outside the handle through the installation through hole. During use, the pressing surface can drive the acting part to move after being externally actuated to drive the air valve structure to conduct the air guide channel, so that the cavity inside the connected external cup body can communicate with the inside of the cup lid or above the cup lid through the air guide channel to form air pressure balance, enabling the user to easily drink through the straw structure. The design of drinking immediately upon pressing greatly improves the convenience of drinking. Whether walking, driving or in other scenarios that require one-handed operation, the user can conveniently use the cup. And when the user does not press the operating part, the pressure relief device will seal the cup body to reduce the occurrence of liquid overflow in the cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are provided to further understand the present invention and form a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0022] Figure 1 FIG. is a schematic structural diagram of a cover structure disclosed in an embodiment of the present invention.

[0023] Figure 2 FIG. is a schematic structural diagram of a lower cover disclosed in an embodiment of the present invention.

[0024] Figure 3 FIG. is a schematic structural diagram of a gas valve structure disclosed in an embodiment of the present invention.

[0025] Figure 4 FIG. is a cross-sectional view of a transmission member in a second position disclosed in an embodiment of the present invention.

[0026] Figure 5 FIG. is a cross-sectional view of a transmission member in a first position disclosed in an embodiment of the present invention.

[0027] Figure 6 FIG. is a cross-sectional view of a cover disclosed in an embodiment of the present invention.

[0028] Figure 7 FIG. is a schematic structural diagram of a drinking container disclosed in another embodiment of the present invention.

[0029] Figure 8 FIG. is an exploded schematic structural diagram of a drinking container disclosed in another embodiment of the present invention.

[0030] Figure 9 FIG. is a schematic structural diagram of a switch structure disclosed in another embodiment of the present invention.

[0031] Figure 10 FIG. is a schematic structural diagram of a handle reset member disclosed in another embodiment of the present invention.

[0032] Figure 11 FIG. is a schematic structural diagram of a locking assembly disclosed in another embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0035] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present invention, unless otherwise clearly specified and defined, the fact that the first feature is "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact, but are in contact through other features between them. Moreover, the fact that the first feature is "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The fact that the first feature is "below", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0037] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the art to which the present invention pertains. The terms "first", "second" and similar terms used in the description and claims of the present patent application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms "a" or "an" and the like do not denote a quantity limitation, but rather denote the existence of at least one.

[0038] Such as Figure 1 and 8As shown, in some specific embodiments, a lid structure includes a cup lid and a straw structure 3. The cup lid can be detachably connected to an external cup body and close the chamber for holding liquid in the cup body. The cup lid includes a lid body 1 and a handle 18 connected to the side of the lid body 1. An installation channel 11 penetrating the upper and lower parts of the lid body 1 is provided on the lid body 1. The straw structure 3 is connected to the lid body 1 through the installation channel 11 and penetrates the lid body 1. The drinking end 31 of the straw structure 3 is located at the top of the lid body 1. The cup lid is provided with a pressure relief device 4. The pressure relief device 4 includes a gas guiding channel 41 arranged in the lid body 1, a gas valve structure 5 capable of opening and closing the gas guiding channel 41, and a switch structure 6 for driving the movement of the gas valve structure 5. One end of the gas guiding channel 41 is arranged at the bottom of the lid body 1, and the other end of the gas guiding channel 41 is communicated with the inside or the top of the lid body 1. The switch structure 6 includes an acting member 62 and an operating member 61. The acting member 62 is connected to the operating member 61. An installation through hole 181 is provided in the handle 18. A part of the operating member 61 is exposed to the outside of the handle 18 through the installation through hole 181 and is provided with a pressing surface 611 for operation. When the cup lid is connected to the external cup body 2, the pressing surface 611 can drive the acting member 62 to move after being subjected to an external action to drive the gas valve structure 5 to conduct the gas guiding channel 41, so that the cavity in the connected external cup body can be communicated with the inside or above the cup lid through the gas guiding channel 41, and the air pressure in the cavity is adjusted to be consistent with the inside or above the cup lid, and normal drinking can be carried out. When the gas valve structure 5 seals the gas guiding channel, the air pressure in the cup is less than the external air pressure, and the liquid in the chamber cannot leak out of the cup through the straw structure.

[0039] In some specific embodiments, the lid body 1 includes an upper lid body 12 and a lower lid body 13. The upper lid body 12 and the lower lid body 13 surround to form a lid space. The lower lid body 13 can close the opening 22 and seal the cup body 2. The gas guiding channel 41 is arranged on the lower lid body 13. The air outlet 14 of the gas guiding channel 41 is located at the bottom of the lower lid body 13, and the air inlet 15 of the gas guiding channel 41 is located at the top of the lower lid body 13, which is used to connect the lid space with the chamber 21, so that the gas in the chamber 21 can be exchanged with the outside through the lid space to achieve balance, and direct drinking through the straw can be carried out.

[0040] As Figures 3 - 5As shown, in some specific embodiments, the air valve structure 5 includes a transmission member 51, a closure member 52 for blocking the air guide channel 41, and a reset member 53. The transmission member 51 is connected to the closure member 52 and the reset member 53 respectively. The reset member 53 can keep the closure member 52 in the first position of blocking the air guide channel 41 when the transmission member 51 is not subjected to an external force. The first position is that the closure member 52 is in close contact with the air guide channel under the upward pushing action of the reset member 53 on the transmission member 51, so as to block the gas in the cavity, forming a sealed state where the air pressure in the cavity is lower than the external air pressure, and the liquid in the cavity cannot leak out of the cup through the straw structure. The switch structure 6 can drive the transmission member 51 to move after the operating member 61 receives an external action, driving the closure member 52 to move away from the first position to the second position of opening the air guide channel 41. The second position is that when the acting member 62 drives the rotating member 51 to move downward, the closure member 52 is far away from the end of the air guide channel 41, so that the cavity can communicate with the cover body space through the air guide channel 41, adjusting the air pressure in the cavity, inside the cover body and the outside, and drinking water can be carried out through the straw structure 3.

[0041] As Figure 6 shown, in some specific embodiments, the transmission member 51 is a columnar body 511 arranged along the air guide channel 41. The columnar body 511 can move axially in the air guide channel 41. The closure member 52 is connected to the columnar body 511. A pressing portion 512 in contact with the switch structure 6 is provided at one end of the columnar body 511 far from the bottom of the lower cover body 13. The reset member 53 is a compression spring 531 sleeved on the columnar body 511. A first limiting member 411 is provided on the air guide channel 41, and a second limiting member 412 is provided on the columnar body 511 near the pressing portion 512. Both ends of the compression spring 531 are connected to the first limiting member 411 and the second limiting member 412 respectively. After the operating member 61 receives an external action to make the closure member 52 in the second position, the compression spring 531 can apply an axial force to the transmission member 51, so that the closure member 52 can be reset to the first position, automatically and quickly closing the air guide channel 41, forming an internal and external air pressure difference, without manual cup lid sealing, and there will be no phenomenon of forgetting to seal and leaking liquid after drinking water.

[0042] In some specific embodiments, the closure member 52 is fixed to one end of the columnar body 511 near the bottom of the cup lid. When the closure member 52 is in the first position, the side of the closure member 52 close to the columnar body 511 abuts against the outer edge of the air outlet 14 of the air guide channel 41 and closes the air guide channel 41. The first limiting member 411 is a convex portion 413 formed by a circumferential protrusion on the inner wall of the air guide channel 41. The second limiting member 412 is a convex cover plate 414 installed circumferentially on the columnar body 511 near one end of the pressing portion 512. A card slot for inserting the second limiting member 412 is provided on the transmission member 51, so that the inner edge of the second limiting member 412 is fixed together with the transmission member 51. During the up and down movement of the transmission 51, the second limiting member 412 moves together with the transmission member 51. Both ends of the compression spring 531 are connected to the upper surface of the convex portion 413 and the lower surface of the convex cover plate 414. While driving the second limiting member 412, the compression spring 531 drives the transmission member 51 to move axially together.

[0043] As Figures 4 - 5 shown, in some specific embodiments, a convex edge 16 protruding upward is provided along the edge of the air inlet 15 of the air guide channel 41 at the top of the lower cover body 13. A convex ring 415 bent downward is provided on the outer edge of the convex cover plate 414. When the closure member 52 is in the second position, the transmission member 51 moves downward, driving the convex ring 415 to move downward. The length of the convex ring 415 is longer than that of the convex edge 16, and it can be clamped outside the convex edge 16 when the transmission member 51 moves downward, and can seal the periphery of the convex edge 16 to prevent foreign objects in the lid space from entering the air guide channel 41 through the convex edge 16 and falling into the cavity to contaminate the liquid when the air guide channel 41 is opened.

[0044] In some specific embodiments, at least one air guide hole 516 is provided on the convex cover plate 414. When the closure member 52 is in the second position, the convex ring 415 and the convex edge 16 have been clamped and matched. The gas in the lid 1 needs to enter the cavity from the air guide hole 516 on the convex cover plate 414 along the air guide channel 41 to realize the spatial communication between the cavity and the lid 1. A groove 17 corresponding to the outer shape of the closure member 52 is provided at the bottom of the lower cover body 13, and the air outlet 14 of the air guide channel 41 is provided at the bottom of the groove 17. The closure member 52 includes a pressing portion 521 connected to the end of the columnar body 511 and a rubber seal 522 sleeved on the columnar body 511. The upper side of the pressing portion 521 is connected to the lower side of the rubber seal 522. When the closure member 52 is in the first position, the upper side of the pressing portion 521 makes the rubber seal 522 abut against the outer edge of the air outlet 14 of the air guide channel 41 and closes the air guide channel 41 by the force applied by the compression spring 531, achieving an air pressure sealing effect, so that the cup will not leak liquid under various conditions during driving.

[0045] As Figure 7As shown, in some specific embodiments, the cup body 2 has a chamber 21 for containing liquid. The upper part of the cup body 2 has an opening 22 communicating with the chamber 21. The cup lid, whose diameter is slightly smaller than the outer diameter of the cup body 2, can close the opening 22. When the cup lid closes the opening 22, the user only needs to press the pressing surface 611 on the handle with a finger. After the pressing surface 611 receives an external action, it will drive the acting member 62 to move to drive the air valve structure 5 to conduct the air guiding channel 41, so that the cavity in the connected external cup body 2 can communicate with the inside or above the cup lid through the air guiding channel 41, achieving the purpose of drinking the liquid in the chamber 21.

[0046] As Figures 9 - 11 shown, in some specific embodiments, the acting member 62 includes a rotating part 621, an abutting part 622 and a connecting part 623. The rotating part 621 is arranged at one end of the acting member 62 away from the operating member 61. The connecting part 623 is connected to the operating member 61 and can drive the acting member 62 to rotate synchronously with the operating member 61 when the pressing surface 611 is operated. The lower end of the abutting part 622 abuts against the air valve structure 5. When the user operates the pressing surface 611, the connecting part 623 drives the abutting part 622 to squeeze the air valve structure 5 downward to open the air guiding channel 41. A handle return member 7 and a locking assembly 8 are arranged inside the handle 18. The handle return member 7 includes a base 71, a locking plate 72, a return spring 73 and an abutting clamping plate 74. The base 71 is connected to the inner side of the handle 18 through a fixing member. The base 71 is arranged corresponding to the operating member 61. The two ends of the return spring 73 are respectively connected to the lower side of the pressing surface 611 and the base 71. The locking plate 72 protrudes from the side wall of the base 71 towards the cover body 1 and is locked and connected to the handle 18 through a fixing member. A plurality of abutting clamping plates 74 are installed on the lower side of the base 71, and a clamping groove 186 corresponding to the number of the abutting clamping plates 74 is recessed on the inner side of the handle 18. The locking assembly 8 includes a locking dial 81, a locking switch 82, a locking buckle 83 and a locking stop 84. A locking channel 187 for the locking switch 82 to move is provided on the side wall of the handle 18. An unlocking groove 188 and a locking groove 189 corresponding to the locking buckle 83 are provided on the handle 18. The locking stop 84 is arranged at the end of the locking dial 81 away from the cover body 1 and extends towards the handle return member 7. The locking assembly 8 switches between the unlocking groove 188 and the locking groove 189 through the locking buckle 83. When the locking buckle 83 is located in the locking groove, the locking stop 84 can abut against the lower end of the operating member 61 to complete the locking of the operating part.

[0047] In some specific embodiments, the abutting portion 622 is arranged between the connecting portion 623 and the rotating portion 621. The abutting portion 622 further includes an avoidance hole 624. The straw structure 3 is located on one side of the air guiding channel 41. The avoidance hole 624 is arranged corresponding to the straw structure 3. When the operation pressing surface 611 is operated, when the connecting portion 623 drives the abutting portion 622 to press the air valve structure 5 downward, a space is left between the straw structure 3 and the abutting portion 622 around the avoidance hole 624, ensuring that when the acting member 62 rotates synchronously with the operating member 61, the straw structure 3 will not interfere with the abutting portion 622. A hinge shaft 625 is arranged at one end of the rotating portion 621 away from the operating member 61. A support seat 131 is arranged at the top end of the lower cover body 13, and a fixed cover 121 corresponding to the support seat 131 is arranged at the bottom end of the upper cover body 12. Therefore, the support seat 131 and the fixed cover 121 are combined to form a mounting seat 132 for the hinge shaft 625 to rotate. When the operation pressing surface 611 is operated, the rotation of the hinge shaft 625 drives the acting member 62 to rotate synchronously with the operating member 61. The split mounting seat 132 is convenient for the operation structure to be installed in the cover body 1 and ensures the strength of the rotation of the hinge shaft 625 in the mounting seat 132. It has strong practicability and there is an angular bend between the avoidance hole 624 and the abutting portion 622. When the operating member 61 is not pressed and the closing member 52 is in the first position, the abutting portion 622, the connecting portion 623 and the surface of the cover body 1 are parallel, and the avoidance hole 624 is bent obliquely downward relative to the abutting portion 622, which is convenient for the operating member 61 to be pressed obliquely downward when the user presses the operating member 61 to drive the rotation of the hinge shaft 625, and will not go too deep and be difficult to pop out, which is more in line with ergonomics.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

[0049] In summary, the above are only the preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the patent of the present invention.

Claims

1. A cover structure, characterized in that: It includes a cup lid and a straw structure. The cup lid can be detachably connected to an external cup body and close the chamber in the cup body for containing liquid. The cup lid includes a lid body and a handle connected to the side of the lid body; An installation channel penetrating the upper and lower parts of the lid body is provided on the lid body. The straw structure is connected to the lid body through the installation channel and penetrates the lid body. The drinking end of the straw structure is located at the top of the lid body; The cup lid is provided with a pressure relief device. The pressure relief device includes an air guide channel arranged in the lid body, a valve structure capable of opening and closing the air guide channel, and a switch structure for driving the movement of the valve structure; One end of the air guide channel is arranged at the bottom of the lid body, and the other end of the air guide channel communicates with the inside or the top of the lid body; The switch structure includes an acting part and an operating part, and the acting part is connected to the operating part; an installation through hole is provided in the handle. A part of the operating part is exposed outside the handle through the installation through hole and is provided with a pressing surface for operation; when the cup lid is connected to the external cup body, the pressing surface can drive the acting part to move after receiving an external action, so as to drive the valve structure to conduct the air guide channel, so that the cavity in the connected external cup body can communicate with the inside or above the cup lid through the air guide channel.

2. The lid body structure according to claim 1, wherein: The lid body includes an upper lid body and a lower lid body. The upper lid body and the lower lid body surround to form a lid body space. The lower lid body can close the opening; the air guide channel is arranged on the lower lid body. The air outlet of the air guide channel is located at the bottom of the lower lid body, and the air inlet of the air guide channel is located at the top of the lower lid body, for communicating the lid body space with the chamber.

3. The lid body structure according to claim 2, wherein: The valve structure includes a transmission part, a closing part for blocking the air guide channel, and a reset part. The transmission part is respectively connected to the closing part and the reset part; The reset part can keep the closing part in the first position of closing the air guide channel when the transmission part is not affected by an external force; the switch structure can drive the transmission part to move after the operating part receives an external action, driving the closing part to leave the first position and move to the second position of opening the air guide channel, so that the cavity can communicate with the lid body space through the air guide channel.

4. The lid body structure according to claim 3, wherein: The transmission part is a columnar body arranged along the air guide channel. The columnar body can move axially in the air guide channel, and a closing part is connected to the columnar body; a pressing part in contact with the switch structure is provided at one end of the columnar body away from the bottom of the lower shell; The reset part is a compression spring sleeved on the columnar body. A first limiting part is provided on the air guide channel, and a second limiting part is provided on the columnar body near the pressing part. The two ends of the compression spring are respectively connected to the first limiting part and the second limiting part.

5. The lid body structure according to claim 4, wherein: The closure is fixed to one end of the columnar body close to the bottom of the cup lid. When the closure is in the first position, the side of the closure close to the columnar body abuts against and closes the outer edge of the air outlet of the air guide channel. The first limiting member is a convex portion formed by a circumferential protrusion on the inner wall of the air guide channel, and the second limiting member is a convex cover plate circumferentially installed on the columnar body close to one end of the pressing portion. The two ends of the compression spring are respectively connected to the upper surface of the convex portion and the lower surface of the convex cover plate.

6. The cover structure according to claim 5, wherein: A convex edge protruding upward is provided along the edge of the air inlet of the air guide channel at the top of the lower cover body, and a convex ring bent downward is provided on the outer edge of the convex cover plate. When the closure is in the second position, the convex ring can be clamped outside the convex edge.

7. The cover structure according to claim 6, characterized in that: At least one air guide hole is provided on the convex cover plate. A groove corresponding to the outer shape of the closure is provided at the bottom of the lower cover body, and an air outlet of the air guide channel is provided at the bottom of the groove. The closure includes a pressing portion connected to the end of the columnar body and a rubber seal sleeved on the columnar body. The upper side of the pressing portion is connected to the lower side of the rubber seal. When the closure is in the first position, the upper side of the pressing portion abuts against and closes the outer edge of the air outlet of the air guide channel through the rubber seal.

8. A drinking container, characterized in that: It includes a cup body and the lid structure according to any one of claims 1-7. A chamber for containing liquid is provided in the cup body. An opening communicating with the chamber is provided in the upper part of the cup body. The cup lid can close the opening. When the cup lid closes the opening, the pressing surface can drive the acting member to move after being externally actuated to drive the air valve structure to conduct the air guide channel, so that the cavity in the connected external cup body can communicate with the inside or above the cup lid through the air guide channel.

9. The drinking container according to claim 8, characterized in that: The acting member includes a rotating portion, an abutting portion, and a connecting portion. The rotating portion is arranged at one end of the acting member far from the operating member. The connecting portion is connected to the operating member and can drive the acting member to rotate synchronously with the operating member when operating the pressing surface. The lower end of the abutting portion abuts against the air valve structure. When operating the pressing surface, the connecting portion drives the abutting portion to press down the air valve structure to open the air guide channel.

10. The drinking container according to claim 9, characterized in that: The abutting portion is arranged between the connecting portion and the rotating portion. The abutting portion further includes an avoidance hole. The straw structure is located on one side of the air guide channel. The avoidance hole is arranged corresponding to the straw structure. When operating the pressing surface, when the connecting portion drives the abutting portion to press down the air valve structure, there is a space between the straw structure and the abutting portion around the avoidance hole.

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