Container cover and water cup

Abstract

The utility model relates to a container cover which comprises a cover body and a cover opening assembly arranged on the cover body in an overturning mode, a water outlet is formed in the cover body, a lock knob capable of transversely moving is arranged on the cover opening assembly, and in the transverse moving process of the lock knob, the cover opening assembly can form a locking state for closing the water outlet or an unlocking state for opening the water outlet. The cover opening assembly can be turned over with one hand quickly, the limiting piece capable of rotating is arranged on the cover opening assembly, and when the limiting piece rotates to the set angle, the lock knob can be prevented from moving in the unlocking direction in time; therefore, the defect that in the prior art, due to the fact that the end of the lock knob is touched by mistake, the cover opening assembly is turned over accidentally, and the water outlet is opened is effectively overcome, when the water outlet needs to be turned over and opened, the lock knob can transversely move to the unlocking state only by rotating the limiting piece to the set position with one hand, and the whole cover opening assembly is turned over and opened smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of heat-insulating containers, in particular to a container cover and also to a water cup. Background Art

[0002] Thermal insulation containers are essential in daily life. They are needed for storing water or keeping warm when traveling or at home. Existing thermal insulation containers often have lids that are connected to the cup or can body using a threaded connection. This threaded connection requires two hands to open the lid: one hand holds the cup body and the other hand unscrews the lid. This threaded connection is quite inconvenient in some situations, such as when a driver wants to open the lid while driving, which is very inconvenient and unsafe.

[0003] To address this situation, some thermal insulation containers with lids that can be opened with one hand have appeared in the prior art. For example, the "Cup Lid and Container with Pressure Relief Function" disclosed in Chinese Utility Model Patent Application No. 202222731396.X (Announcement No. CN218528395U) includes a lid body and a flip cover hinged to the lid body. The lid body is provided with a drinking port, which can be closed when the flip cover is flipped down. The flip cover is provided with a pressure relief channel that can connect to the drinking port. The pressure relief channel is provided with a pressure relief valve. The flip cover is also provided with a trigger device that can trigger the pressure relief valve to open or close the pressure relief channel. In this structure, by sliding a lock button on the flip cover, the lock button can lock the flip cover to the lid body when the flip cover is in the flip-down state, and the lock button can be pushed to unlock the flip cover, thereby smoothly realizing the one-handed opening of the cup lid.

[0004] However, there is a problem here: since the pressing end of the lock button is exposed on the side of the flip cover, in daily use, it is often encountered that the lock button moves inward due to accidental contact with the end of the lock button, causing the flip cover to be accidentally opened, thereby causing unnecessary water leakage.

[0005] Therefore, how to provide a cup lid or water cup with a reasonable structure that can not only realize the opening of the cup lid with one hand, but also effectively prevent the cup lid from being accidentally opened due to accidentally touching the lock button and causing water leakage is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0006] The first technical problem to be solved by the present invention is to provide a container lid with a reasonable structure in response to the above-mentioned existing technical status, which can not only quickly realize single-handed operation to open, but also effectively prevent it from being accidentally opened due to accidental contact with the lock button.

[0007] The second technical problem to be solved by the present invention is to provide a water cup equipped with the above-mentioned container cover in view of the above-mentioned existing technical status.

[0008] The technical solution adopted by the present invention to solve the first technical problem is: a container lid, comprising a lid body and an opening lid assembly flipped on the lid body, the lid body being provided with a water outlet, the opening lid assembly being able to close the water outlet or open the water outlet during the flipping process, and characterized in that: the opening lid assembly comprises a rotatable limit member and a lock button that can move laterally, the rotation axis of the limit member being parallel or substantially parallel to the moving direction of the lock button, the lock button being able to enable the opening lid assembly to form a locked state for closing the water outlet or an unlocked state for opening the water outlet during the lateral movement, the limit member being able to prevent the lock button from moving in the unlocking direction when rotated to a first angle, and allowing the lock button to move in the unlocking direction when rotated to a second angle.

[0009] In order to enable the lock button to better form a locked state or unlocked state between the lid opening assembly and the lid body, preferably, a buckle is formed on the lock button, and a slot adapted to the buckle is formed on the inner wall of the water outlet. When the lock button moves in the locking direction to the set position, the buckle can be adapted in the slot to lock the lid opening assembly on the lid body. When the lock button moves in the unlocking direction to the set position, the buckle can be disengaged from the slot to enable the lid opening assembly to be opened.

[0010] In order to optimize the overall structure of the lid opening assembly and make the lock button and the limit member better adapt to each other, preferably, the lid opening assembly also includes a flip member hinged on the cover body and a plug body provided at the bottom of the flip member and capable of extending into the water outlet to close the water outlet, and a receiving space for the horizontal movement of the lock button is formed between the plug body and the flip member, and the limit member can be rotatably provided on the flip member and at least partially built into the receiving space for preventing the lock button from moving in the unlocking direction, and a reset member for driving the lock button to always move in the locking direction is also provided in the receiving space.

[0011] In order to enable the limiter to rotate better on the flipping member, preferably, the limiter is provided with an axial hole that enables the limiter to rotate around its own axis, the flipping member is provided with a fixed shaft that can adapt to the axial hole, and the flipping member is also provided with a vertical through hole for allowing a part of the limiter to be exposed at the top of the flipping member. The part of the limiter exposed at the top of the flipping member is also provided with a first notch for facilitating the rotation of the limiter.

[0012] In order to enable the cover opening assembly to be automatically flipped open, preferably, an elastic member is provided between the cover opening assembly and the cover body, which can drive the cover opening assembly to always bounce open in the direction of opening the water outlet.

[0013] In order to enable the limiting member to better form a blocking state or a passing state for the lock button, preferably, a second notch is provided on the limiting member that passes through horizontally, and a limiting block adapted to the second notch is formed on the lock button. During the rotation process, the limiting member can form a blocking state for preventing the limiting block from passing through the second notch and a passing state for allowing the limiting block to pass through the second notch.

[0014] In order to ensure that the limiting member can be promptly limited after forming a blocking state or a passing state, preferably, a first limiting surface and a second limiting surface are formed on the outer circumferential surface of the limiting member, and a first limiting wall adapted to the first limiting surface and a second limiting wall adapted to the second limiting surface are respectively formed on the bottom of the flip member;

[0015] When the limiting member rotates clockwise to a stopped state, the first limiting surface can abut against the first limiting wall to limit the limiting member from continuing to rotate clockwise;

[0016] When the limiting member rotates counterclockwise to a passing state, the second limiting surface can abut against the second limiting wall to limit the limiting member from continuing to rotate counterclockwise.

[0017] In order to enable the user to clearly understand whether the limit member has been rotated into place, preferably, the side of the limit member is also provided with a positioning portion, and the bottom of the flip member is extended downward with a convex wall, and the convex wall is formed with a first positioning groove and a second positioning groove that can both be adapted to the positioning portion. When the limit member is rotated to the blocking state, the positioning portion can be adapted in the first positioning groove and limit the limit member from rotating freely without the use of external force. When the limit member is rotated to the passing state, the positioning portion can be adapted in the second positioning groove and limit the limit member from rotating freely without the use of external force.

[0018] In order to enable the lock button to simultaneously form a pressure relief channel during the unlocking process, so that the cover opening assembly can be opened more easily, preferably, the cover opening assembly is also provided with a pressure relief assembly, and a pressure relief channel that can communicate with the outside is formed on the plug body, and the pressure relief assembly includes a pressure relief rod, a pressure relief head and a reset spring, the pressure relief rod is built into the pressure relief channel, the pressure relief head is connected to the bottom of the pressure relief rod and exposed at the bottom of the plug body, the reset spring is arranged between the pressure relief rod and the plug body to drive the pressure relief head to always block the air inlet end of the pressure relief channel in the absence of external force, and an inclined surface is also formed on the lock button, when the lock button moves laterally to the unlocked state, the inclined surface can squeeze the top of the pressure relief rod to drive the pressure relief rod to move downward and drive the pressure relief head to release the blockage of the pressure relief channel.

[0019] The technical solution adopted by the present invention to solve the second technical problem is: a water cup, comprising a cup body, characterized in that the container cover is applied to the cup body, and the cover body is detachably connected to the cup body.

[0020] Compared with the prior art, the container lid of the present invention has the following advantages: 1. By arranging a lock button that can move laterally on the lid opening assembly, the lock button can make the lid opening assembly form a locked state to close the water outlet or an unlocked state to open the water outlet during the lateral movement, thereby enabling the lid opening assembly to be quickly flipped over by one hand; 2. By arranging a rotatable limiter on the lid opening assembly, the limiter can also prevent the lock button from moving in the unlocking direction when it is rotated to a set angle, thereby effectively solving the problem in the prior art that the lid opening assembly is accidentally flipped over to open the water outlet due to accidental contact with the lock button end; 3. Since the limiter here switches the blocking state or the unlocking state by rotating, the lid opening assembly can be quickly flipped over by one hand. The lid opening assembly is in a state of movement, so it is not easy for the limiter to be accidentally rotated to the pass state by being touched by external forces. When the water outlet needs to be flipped open, the limiter can be turned to the set position with one hand, and the lock button can be moved horizontally to the unlocked state, so that the entire lid opening assembly can be smoothly flipped open, making the entire lid opening process absolutely controllable. At the same time, the rotation method also increases the fun of the user's hands-on operation. 4. In addition, a pressure relief assembly for pressure relief is provided on the lid opening assembly, so that the lock button can synchronously trigger the pressure relief rod of the pressure relief assembly during the process of horizontal unlocking, so that the internal energy gas of the water cup with the container lid is instantly released, so that the entire lid opening assembly can be opened more smoothly. In addition, the container lid here also has the advantages of reasonable structure and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the three-dimensional structure of this embodiment (the cover assembly is in a closed state);

[0022] Figure 2 Schematic diagram of the three-dimensional structure of this embodiment (the cover assembly is in the open state);

[0023] Figure 3 This is a schematic diagram of the structure of the decomposed state of this embodiment;

[0024] Figure 4 is a schematic cross-sectional view of this embodiment;

[0025] Figure 5 is a cross-sectional schematic diagram of another position of this embodiment (the limiting member is in a blocking state);

[0026] Figure 6 is a cross-sectional schematic diagram of another position of this embodiment (the limiting member is in a passable state);

[0027] Figure 7 Schematic diagram of the three-dimensional structure of the limiting member in this embodiment;

[0028] Figure 8 This is a schematic diagram of the bottom perspective structure of the flip member in this embodiment;

[0029] Figure 9 Schematic diagram of the assembly structure of the flip member and the limiting member in this embodiment (the limiting member is in a blocking state);

[0030] Figure 10 Schematic diagram of the assembly structure of the flip member and the limiting member in this embodiment (the limiting member is in the pass state);

[0031] Figure 11 This is a structural schematic diagram of the container cover of this embodiment installed on the cup body. DETAILED DESCRIPTION

[0032] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0033] Figures 1 to 10 What is shown is a schematic diagram of the container cover in this embodiment. The container cover in this embodiment mainly includes a cover body 1, a cover opening assembly 2 and a pressure relief assembly 4.

[0034] refer to Figures 1 to 4 As shown, in this embodiment, the cover opening assembly 2 can be flipped and arranged on the cover body 1, and the cover body 1 is provided with a water outlet 1a. The cover opening assembly 2 can close the water outlet 1a or open the water outlet 1a during the flipping process. The cover opening assembly 2 includes a rotatable limit member 2a and a laterally movable lock button 2b. The rotation axis of the limit member 2a is parallel or substantially parallel to the moving direction of the lock button 2b. The lock button 2b can enable the cover opening assembly 2 to form a locked state of closing the water outlet 1a or an unlocked state of opening the water outlet 1a during the lateral movement. The limit member 2a can prevent the lock button 2b from moving in the unlocking direction when it is rotated to a first angle, and allow the lock button 2b to move in the unlocking direction when it is rotated to a second angle.

[0035] In order to make the lock button 2b better form a locked state or unlocked state between the cover opening component 2 and the cover body 1, refer to Figure 3 and Figure 4 As shown, in this embodiment, a buckle 2b1 is formed on the lock button 2b, and a slot 1b adapted for the buckle 2b1 is formed on the inner wall of the water outlet 1a. When the lock button 2b moves in the locking direction to the set position, the buckle 2b1 can be adapted in the slot 1b so that the cover opening component 2 is locked on the cover body 1. When the lock button 2b moves in the unlocking direction to the set position, the buckle 2b1 can be disengaged from the slot 1b so that the cover opening component 2 can be opened.

[0036] Secondly, in order to make the cover opening component 2 better match the cover body 1 when it is turned over to the locked state, refer to Figure 3 and Figure 4As shown, the lid opening assembly 2 in this embodiment also includes a flip member 2c hingedly connected to the lid body 1 and a plug 2d disposed at the bottom of the flip member 2c and capable of extending into the water outlet 1a to seal it. A receiving space A is formed between the plug 2d and the flip member 2c, allowing the lock button 2b to move laterally. A stopper 2a is rotatably mounted on the flip member 2c and at least partially embedded in the receiving space A to prevent the lock button 2b from moving in the unlocking direction. A reset member 2e is also disposed within the receiving space A to force the lock button 2b to always move in the locking direction. A seal is typically installed at the bottom of the plug 2d to enhance the sealing performance of the water outlet 1a.

[0037] At the same time, in order to make the limiting member 2a rotate better on the flip member 2c, refer to Figures 7 to 9 As shown, in this embodiment, a shaft hole 2a1 is specially provided on the limit member 2a to enable the limit member 2a to rotate around its own axis, a fixed shaft 2c1 is provided on the flip member 2c to fit the shaft hole 2a1, and a vertical through hole 2c2 is also provided on the flip member 2c to allow a portion of the limit member 2a to be exposed at the top of the flip member 2c. A first notch 2a2 is also provided on the portion of the limit member 2a exposed at the top of the flip member 2c to facilitate the rotation of the limit member 2a. There are generally two fixed shafts 2c1 here, and the two fixed shafts 2c1 are symmetrically arranged to fit in the shaft hole 2a1. In order to better fit the fixed shafts 2c1 in the shaft hole 2a1, the ends of the fixed shafts 2c1 here are also provided with an inclined surface so that the limit member 2a can be better inserted from the bottom up. For details, please refer to Figure 4 shown.

[0038] Also, in order to enable the cover opening assembly 2 to be automatically flipped open, refer to Figures 2 to 4 As shown, in this embodiment, an elastic member 5 is specially provided between the cover opening assembly 2 and the cover body 1 to drive the cover opening assembly 2 to always bounce toward the direction of opening the water outlet 1a.

[0039] In order to make the cover opening assembly 2 better match the cover body 1 when it is flipped to the locked state, refer to Figure 1 and Figure 3 As shown, in this embodiment, the edge of the flip member 2c is specially formed with a skirt 2c3 that adapts to the contour of the cover body 1, and the end of the lock button 2b is formed with a pressing portion 2b2 for pushing the lock button 2b to move in the unlocking direction, and the skirt 2c3 is provided with a pressing hole 2c4 that is horizontally penetrated for the pressing portion 2b2 to pass horizontally and be exposed.

[0040] In this embodiment, in order to make the limiting member 2a better able to form a blocking state or a passing state for the lock button 2b, refer to Figures 5 to 7As shown, a second notch 2a3 running horizontally through the limiting member 2a is formed, and a limiting block 2b3 adapted to the second notch 2a3 is formed on the lock button 2b. During the rotation process, the limiting member 2a can form a blocking state for preventing the limiting block 2b3 from passing through the second notch 2a3 and a passing state for allowing the limiting block 2b3 to pass through the second notch 2a3.

[0041] In this embodiment, in order to make the limiting member 2a here be limited in time after forming the blocking state or the passing state, refer to Figure 5 、 Figure 6 and Figure 8 As shown, in this embodiment, a first limiting surface 2a4 and a second limiting surface 2a5 are further formed on the outer peripheral surface of the limiting member 2a, and a first limiting wall 2c5 adapted to the first limiting surface 2a4 and a second limiting wall 2c6 adapted to the second limiting surface 2a5 are respectively formed on the bottom of the flip member 2c; when the limiting member 2a rotates clockwise to the blocking state, the first limiting surface 2a4 can abut against the first limiting wall 2c5 and limit the limiting member 2a from continuing to rotate clockwise; when the limiting member 2a rotates counterclockwise to the passing state, the second limiting surface 2a5 can abut against the second limiting wall 2c6 and limit the limiting member 2a from continuing to rotate counterclockwise.

[0042] In this embodiment, in order to enable the user to clearly understand whether the limiting member 2a has been rotated into place, refer to Figure 9 and Figure 10 As shown, a positioning portion 2a6 is intentionally protruded from the side of the limiting member 2a, and a convex wall 2c7 is extended downward from the bottom of the flip member 2c. A first positioning groove 2c8 and a second positioning groove 2c9 are formed on the convex wall 2c7, both of which can adapt to the positioning portion 2a6. When the limiting member 2a rotates to the blocking state, the positioning portion 2a6 can be adapted to the first positioning groove 2c8 and restrict the limiting member 2a from rotating freely without external force. When the limiting member 2a rotates to the passing state, the positioning portion 2a6 can be adapted to the second positioning groove 2c9 and restrict the limiting member 2a from rotating freely without external force. The limiting member 2a here also has a groove 2a7 that runs through the outer circumference. For details, refer to Figure 7 As shown, the provision of the groove 2a5 can make the limiting member 2a provided with the positioning portion 2a6 more deformable, so that the positioning portion 2a6 can be better adapted to the first positioning groove 2c8 and the second positioning groove 2c9.

[0043] In this embodiment, in order to enable the lock button 2b to simultaneously form a pressure relief channel during the unlocking process so that the cover opening component 2 can be opened more easily, reference is made to Figure 3 and Figure 4As shown, the cover opening assembly 2 is also provided with a pressure relief assembly 3, and a pressure relief channel B that can communicate with the outside is formed on the plug body 2d. The pressure relief assembly 3 includes a pressure relief rod 3a, a pressure relief head 3b and a reset spring 3c. The pressure relief rod 3a is built into the pressure relief channel B, the pressure relief head 3b is connected to the bottom of the pressure relief rod 3a and exposed at the bottom of the plug body 2d, and the reset spring 3c is arranged between the pressure relief rod 3a and the plug body 2d to drive the pressure relief head 3b to always block the air inlet end of the pressure relief channel B in the absence of external force. An inclined surface 2b4 is also formed on the lock button 2b. When the lock button 2b moves laterally to the unlocked state, the inclined surface 2b4 can squeeze the top of the pressure relief rod 3a to drive the pressure relief rod 3a to move downward and drive the pressure relief head 3b to release the blockage of the pressure relief channel B.

[0044] In addition, this embodiment also provides a water cup, for specific reference Figure 11 As shown, the water cup here mainly includes a cup body 4, on which a container cover is installed. The cover body 1 of the container cover can be detachably connected to the cup body 4. The detachable connection here can be a threaded connection. Of course, it can adopt other structures that can also achieve detachable connection, which will not be elaborated here.

[0045] It is also necessary to explain additionally that in the present embodiment, by providing a lock button 2b that can move laterally on the lid opening assembly 2, and making the lock button 2b here able to form a locked state for closing the water outlet 1a or an unlocked state for opening the water outlet 1a during the lateral movement, the lid opening assembly 2 can be quickly flipped over with one hand, and by providing a rotatable limiter 2a on the lid opening assembly, the limiter 2a can timely prevent the lock button 2b from moving in the unlocking direction when it is rotated to a set angle, thereby effectively solving the problem in the prior art that the lid opening assembly 2 is accidentally flipped over and the water outlet 1a is opened due to accidental contact with the end of the lock button 2b. When the water outlet 1a needs to be flipped over and opened, it is only necessary to rotate the limiter 2a to the set position with one hand, so that the lock button 2b here can be moved laterally to the unlocked state, and the entire lid opening assembly 2 can be smoothly flipped over and opened, thereby making the entire lid opening process absolutely controllable.

[0046] It should be noted that in the description of this embodiment, the terms "front, back", "left, right", "inside, outside", "upper, lower" and the like indicating directions or positional relationships are all based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "install", "connect", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two components. 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.

Claims

1. A container lid, comprising a lid body (1) and a lid opening assembly (2) that is flip-over mounted on the lid body (1), wherein the lid body (1) is provided with a water outlet (1a), and the lid opening assembly (2) can close or open the water outlet (1a) during the flipping process, characterized in that: The lid opening assembly (2) comprises a rotatable limiting member (2a) and a lock button (2b) that can move laterally. The rotation axis of the limiting member (2a) is parallel or substantially parallel to the moving direction of the lock button (2b). The lock button (2b) can enable the lid opening assembly (2) to form a locked state for closing the water outlet (1a) or an unlocked state for opening the water outlet (1a) during the laterally moving process. The limiting member (2a) can prevent the lock button (2b) from moving in the unlocking direction when it is rotated to a first angle, and allow the lock button (2b) to move in the unlocking direction when it is rotated to a second angle.

2. The container cap according to claim 1, wherein: A buckle (2b1) is formed on the lock button (2b), and a slot (1b) adapted to fit the buckle (2b1) is formed on the inner wall of the water outlet (1a). When the lock button (2b) moves in the locking direction to a set position, the buckle (2b1) can fit into the slot (1b) so that the cover opening assembly (2) is locked on the cover body (1). When the lock button (2b) moves in the unlocking direction to a set position, the buckle (2b1) can disengage from the slot (1b) so that the cover opening assembly (2) can be opened.

3. The container cap according to claim 1, wherein: The lid opening assembly (2) further comprises a flip member (2c) hingedly connected to the lid body (1) and a plug body (2d) provided at the bottom of the flip member (2c) and capable of extending into the water outlet (1a) to close the water outlet (1a); an accommodating space (A) for the lock button (2b) to move laterally is formed between the plug body (2d) and the flip member (2c); the limiting member (2a) is rotatably provided on the flip member (2c) and is at least partially embedded in the accommodating space (A) to prevent the lock button (2b) from moving in the unlocking direction; and a reset member (2e) is further provided in the accommodating space (A) for driving the lock button (2b) to always move in the locking direction.

4. The container cap according to claim 3, wherein: The limiting member (2a) is provided with an axial hole (2a1) that enables the limiting member (2a) to rotate around its own axis, the flip member (2c) is provided with a fixed shaft (2c1) that can adapt to the axial hole (2a1), the flip member (2c) is also provided with a vertical through hole (2c2) for allowing a part of the limiting member (2a) to be exposed at the top of the flip member (2c), and the part of the limiting member (2a) exposed at the top of the flip member (2c) is also provided with a first notch (2a2) for facilitating the rotation of the limiting member (2a).

5. The container cap according to claim 1, wherein: An elastic member (5) capable of driving the lid opening assembly (2) to always spring open in the direction of opening the water outlet (1a) is also provided between the lid opening assembly (2) and the lid body (1).

6. The container cap according to claim 3, wherein: The limiting member (2a) is provided with a second notch (2a3) extending transversely therethrough, and the locking button (2b) is provided with a limiting block (2b3) adapted to the second notch (2a3). During the rotation process, the limiting member (2a) can form a blocking state for preventing the limiting block (2b3) from passing through the second notch (2a3) and a passing state for allowing the limiting block (2b3) to pass through the second notch (2a3).

7. The container cap according to claim 6, wherein: A first limiting surface (2a4) and a second limiting surface (2a5) are formed on the outer peripheral surface of the limiting member (2a); and a first limiting wall (2c5) adapted to the first limiting surface (2a4) and a second limiting wall (2c6) adapted to the second limiting surface (2a5) are respectively formed on the bottom of the flip member (2c); When the limiting member (2a) rotates clockwise to a stopped state, the first limiting surface (2a4) can abut against the first limiting wall (2c5) to limit the limiting member (2a) from continuing to rotate clockwise; When the limiting member (2a) rotates counterclockwise to a passable state, the second limiting surface (2a5) can abut against the second limiting wall (2c6) to limit the limiting member (2a) from continuing to rotate counterclockwise.

8. The container cap according to claim 6, wherein: The side of the limiting member (2a) is also provided with a convex positioning portion (2a6), and the bottom of the flip member (2c) is provided with a convex wall (2c7) extending downward, and the convex wall (2c7) is formed with a first positioning groove (2c8) and a second positioning groove (2c9) both of which can be adapted to the positioning portion (2a6). When the limiting member (2a) is rotated to the blocking state, the positioning portion (2a6) can be adapted in the first positioning groove (2c8) to limit the limiting member (2a) from rotating freely without the use of external force. When the limiting member (2a) is rotated to the passing state, the positioning portion (2a6) can be adapted in the second positioning groove (2c9) to limit the limiting member (2a) from rotating freely without the use of external force.

9. The container cap according to claim 3, wherein: The cover opening assembly (2) is further provided with a pressure relief assembly (3), a pressure relief channel (B) capable of communicating with the outside is formed on the plug body (2d), the pressure relief assembly (3) comprises a pressure relief rod (3a), a pressure relief head (3b) and a reset spring (3c), the pressure relief rod (3a) is built into the pressure relief channel (B), the pressure relief head (3b) is connected to the bottom of the pressure relief rod (3a) and exposed at the bottom of the plug body (2d), and the reset spring (3c) is provided at the pressure relief rod (3a). The pressure rod (3a) and the plug body (2d) are used to drive the pressure relief head (3b) to always block the air inlet end of the pressure relief channel (B) without the action of external force. The lock button (2b) is also formed with an inclined surface (2b4). When the lock button (2b) moves laterally to an unlocked state, the inclined surface (2b4) can squeeze the top of the pressure relief rod (3a) to drive the pressure relief rod (3a) downward and drive the pressure relief head (3b) to release the blockage of the pressure relief channel (B).

10. A water cup, comprising a cup body (4), characterized in that: The cup body (4) is mounted with a container cover according to any one of claims 1 to 9, and the cover body (1) is detachably connected to the cup body (4).

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