WO2024222828A1

WO2024222828A1 - Lid assembly that is reliable to use, and container

Info

Publication number: WO2024222828A1
Application number: PCT/CN2024/089933
Authority: WO
Inventors: 李红彪
Original assignee: 李红彪
Priority date: 2023-04-27
Filing date: 2024-04-26
Publication date: 2024-10-31

Abstract

Disclosed in the present application are a lid assembly that is reliable to use, and a container. In an opening process, only an upper lid is turned over and opened at a smaller angle to form a pressure relief gap or a pressure relief channel, gas in a container body then starts to leak out through the pressure relief gap or the pressure relief channel, and the upper lid continues to be opened after the gas completely leaks, so that the situation of liquid spraying out that is caused by the upper lid being ejected by high-pressure gas when the container is opened for the first time can be effectively prevented, and the lid assembly has the characteristic of being safe and reliable to use. In addition, when the upper lid covers an opening portion of the container body for the second time, a snap-fit member on an inner side of the upper lid is snap-fitted to and matches a container snap-fit portion on an outer wall of the opening portion of the container body, no outward pulling force is applied, when the container body is shaken or impacted normally, internal air pressure rises, and a fastening force thereof is sufficient to prevent the upper lid from being blown away by the gas, such that liquid spraying out cannot be caused, thereby improving the safety.

Description

A lid assembly and container with reliable use

Technical Field

The present application relates to the technical field of packaging containers, and in particular to a lid assembly and a container that are reliable in use.

Background Art

High-pressure soda and high-pressure sparkling wine refer to beverages or wines that contain gases such as _CO2 , such as Coca-Cola, champagne, etc.

At present, the cover assemblies used for covering and sealing high-pressure soda containers or high-pressure sparkling wine containers on the market usually adopt conventional cover assemblies. For example, the cover assembly is connected to the container mouth by snap-fitting or other connection methods. Since there are gases such as _CO2 in the beverage or wine contained in the inner cavity of the container, the cover assembly is easily separated or loosened from the container mouth under the action of the gas, which can easily cause the problem of poor sealing effect; in addition, when the cover assembly is operated to open the container mouth, the gas in the inner cavity of the container will quickly gather and release outward, causing the cover assembly to collapse due to the action of the gas, and the cover assembly will splash and collide with foreign objects or consumers, resulting in low safety in use; in addition, after the upper cover is closed for the second time after opening, the upper cover is also easily opened by the gas, causing the beverage to spray.

In addition, if the cover assembly used to cover and seal the high-pressure soda container or high-pressure sparkling wine container adopts a cover assembly with a complex structure, there will be problems of high manufacturing cost and inconvenience in use.

Therefore, this application is studied and proposed with respect to the above-mentioned problems.

Application Contents

The purpose of the present application is to overcome the shortcomings of the prior art and to provide a lid assembly and a container that are reliable in use. During the opening process, the upper cover only needs to be flipped open at a small angle to form a pressure relief gap or a pressure relief channel, and the gas in the container body begins to leak out from the pressure relief gap or the pressure relief channel. The upper cover can be opened again after the gas is completely released, which can effectively prevent the upper cover from being blown open by high-pressure gas during the initial opening, causing liquid to be sprayed, and has the characteristics of safe and reliable use. In addition, when the upper cover is closed on the mouth of the container body for the second time, the clamping piece on the inner side of the upper cover is clamped with the container clamping part on the outer wall of the mouth of the container body without applying an outward pulling force. When the container body is shaken or hit normally inside and the air pressure increases, the snapping force is sufficient to prevent the upper cover from being blown open by the gas and causing liquid to be sprayed, thereby improving safety.

This application is implemented through the following technical solutions:

The present application provides a reliable lid assembly, comprising a lid seat for connecting to the mouth of a container body, an upper lid for closing or opening the mouth of the container body being flipably connected to the lid seat, a snap-fit structure being provided on the upper lid, and the snap-fit structure comprising a snap-fit member provided on the upper lid.

The upper cover comprises a cover body for being flippably connected to the cover seat and a cover side portion arranged on the cover body and protruding downwards, and the clamping member is arranged on the cover body and/or the inner wall of the cover side portion.

An opening wrench for assisting the side of the cover to move relative to the cover body is provided on the side of the cover, and an opening pressing sheet for assisting the upper cover to flip relative to the cover seat is provided on the cover body and away from the side of the opening wrench.

The cover side portion comprises a cover side body connected to the cover body and a cover side flip piece movable relative to the cover side body, the opening wrench is formed by the cover side flip piece, and a clamping piece is provided on the inner wall of the cover side body and/or the cover side flip piece.

The two side edges of the cover side portion are destructibly connected to the inner wall of the side wall notch of the cover body.

The upper end of the cover side portion is connected to the cover body, and the cover side portion is narrow at the top and wide at the bottom.

The cover seat is provided with a positioning groove for the side portion of the cover to be snapped into position when the upper cover is turned over to cover the mouth of the container body.

At least one end of the clamping member is provided with a clamping guide inclined surface.

A tearable tear strip is provided between the lower port of the upper cover and the upper port of the cover base.

The inner bottom of the upper cover is provided with an upper cover sealing plug for buckling into the mouth of the container body, and a sealing plug notch is provided on the side wall of the upper cover sealing plug.

A hollow portion is provided between the cover seat and the upper cover, and a rebuttal piece protruding outward is provided at a position of the upper cover corresponding to the hollow portion, and when the upper cover is opened or closed, a reaction force generated between the front end of the rebuttal piece and the bottom of the hollow portion or the outer wall of the mouth of the container body has a transition point with opposite vector directions; or, a hollow portion is provided between the cover seat and the upper cover, and a rebuttal piece protruding outward is provided at a position of the upper cover corresponding to the hollow portion, and a stopper piece protruding upward is provided at a position of the cover seat corresponding to the hollow portion, and when the upper cover is opened or closed, a reaction force generated between the front end of the rebuttal piece and the stopper piece has a transition point with opposite vector directions.

A hollow portion is provided between the cover seat and the upper cover, and a downwardly protruding rebuttal piece is provided at a position of the upper cover corresponding to the hollow portion. When the upper cover is opened, the front end of the rebuttal piece abuts against the outer wall of the mouth of the container body, and the reaction force between the rebuttal piece and the outer wall of the mouth of the container body forms an acute angle maintained by force between the rebuttal piece and the outer wall of the mouth of the container body; or, a hollow portion is provided between the cover seat and the upper cover, and a downwardly protruding rebuttal piece is provided at a position of the upper cover corresponding to the hollow portion, and an upwardly extending stopper piece is formed at a position of the cover seat corresponding to the hollow portion. When the upper cover is opened, the upper end of the stopper piece abuts against the rebuttal piece, so that an acute angle maintained by force is formed between the stopper piece and the rebuttal piece.

The present application also provides a reliable container, including a container body, the mouth of the container body is connected to a reliable cover assembly as described above, and the mouth of the container body or the cover seat is provided with a container clamping part that can be used in conjunction with a clamping piece.

The mouth of the container body or the cover seat is provided with two container clamping parts spaced apart from each other. When the mouth of the container body is closed and blocked by the upper cover, the clamping piece is clamped and matched with the container clamping part located below. When the mouth of the container body is partially opened to form a pressure relief gap or a pressure relief channel, the upper cover is flipped relative to the cover seat so that the clamping piece is separated from the container clamping part located below and is clamped and matched with the container clamping part located above.

The mouth of the container body or the cover seat is provided with two container clamping parts spaced apart from each other, and the upper cover is provided with two clamping pieces spaced apart from each other. When the mouth of the container body is closed and blocked by the upper cover, the upper clamping piece is clamped and matched with the upper container clamping part, and the lower clamping piece is clamped and matched with the lower container clamping part; when the mouth of the container body is partially opened to form a pressure relief gap or a pressure relief channel, the upper cover is flipped relative to the cover seat so that the lower clamping piece is separated from the lower container clamping part, and the upper clamping piece remains clamped and matched with the upper container clamping part.

When the upper cover is flipped relative to the cover base so that the clamping piece at the bottom is separated from the container clamping part at the bottom, an escape gap is formed between the clamping piece at the top and the container clamping part at the top.

Compared with the prior art, this application has the following advantages:

1. In the opening process of the present application, it is only necessary to flip the upper cover to open at a small angle to form a pressure relief gap or a pressure relief channel, and the gas in the container body begins to leak out from the pressure relief gap or the pressure relief channel. After the gas is completely released, the upper cover can be opened again, which can effectively prevent the upper cover from being blown open by high-pressure gas during the initial opening, causing liquid to be sprayed, and has the characteristics of safe and reliable use; in addition, when the upper cover is closed on the mouth of the container body for the second time, the clamping piece on the inner side of the upper cover is clamped with the container clamping part on the outer wall of the mouth of the container body without applying an outward pulling force. When the container body is shaken or hit normally inside and the air pressure increases, the buckling force is sufficient to prevent the upper cover from being blown open by the gas and causing liquid to be sprayed, thereby improving safety.

2. For ease of use, an opening wrench is provided on the side of the cover to assist the side of the cover to move relative to the cover body.

3. At least one end of the clamping piece is provided with a clamping guide slope. In the present application, both ends of the clamping piece are provided with clamping guide slopes. When the upper cover is flipped relative to the cover seat to open the mouth of the container body, the clamping guide slope on one end of the clamping piece cooperates with the container clamping part to facilitate the separation of the clamping piece from the corresponding container clamping part, thereby avoiding the phenomenon of the clamping piece and the container clamping part being stuck and affecting the flipping of the upper cover; when the upper cover is flipped relative to the cover seat to cover the mouth of the container body, the clamping guide slope on the other end of the clamping piece cooperates with the corresponding container clamping part to facilitate the clamping cooperation between the clamping piece and the container clamping part. Therefore, the above-mentioned guiding structure is adopted to facilitate the flipping of the upper cover relative to the cover seat to open or close the mouth of the container body, and the design is reasonable.

4. When the upper cover is opened or closed, the reaction force generated between the front end of the repulsion piece and the bottom of the hollow part or the outer wall of the mouth of the container body has a conversion point with an opposite vector direction, which can ensure that the upper cover remains in an open state and will not automatically turn back due to the elasticity of the connecting part (connecting belt). At the same time, it can also ensure that the upper cover will not touch the mouth or nose during use, which is convenient, clean and hygienic to use.

BRIEF DESCRIPTION OF THE DRAWINGS

The specific implementation of the present application is further described in detail below with reference to the accompanying drawings, wherein:

Figure 1 is a perspective view of one of the upper cover and the cover base when connected to Example 1 of the present application;

Figure 2 is a perspective view of the second embodiment of the present application when the cover and the cover base are connected;

Figure 3 is a perspective view of the upper cover of Example 1 of the present application when it is flipped open relative to the cover seat;

Figure 4 is a cross-sectional view of the upper cover of the container body mouth when the application Example 1;

Figure 5 is a cross-sectional view of one of the use state of Example 1 of the present application;

Figure 6 is a cross-sectional view of the second embodiment of the present application in use state 1;

Figure 7 is a cross-sectional view of the third embodiment of the present application in use state 1;

Figure 8 is a cross-sectional view of the upper cover of the container body mouth when the embodiment 2 of the present application;

Figure 9 is a cross-sectional view of the upper cover of the container body mouth when the embodiment of the present application 3;

Figure 10 is a perspective view of the upper cover and the cover base when connected to Example 4 of the present application;

Figure 11 is a perspective view of the upper cover and the cover base when connected to Example 5 of the present application;

Figure 12 is a cross-sectional view of the use state of Example 6 of the present application;

Figure 13 is a perspective view of one of Example 7 of the present application;

Figure 14 is a perspective view of the second embodiment of the present application 7;

Figure 15 is a three-dimensional diagram of Example 7 of the present application;

Figure 16 is a cross-sectional view of Example 7 of the present application;

FIG. 17 is a stereoscopic diagram of Example 8 of the present application.

DETAILED DESCRIPTION

The implementation methods of the present application are described in detail below with reference to the accompanying drawings.

As shown in Figures 1-17, the present application provides a reliable cover assembly, including a cover seat 2 for connecting to the mouth of a container body 1, and an upper cover 3 for closing or opening the mouth of the container body 1 is flipably connected to the cover seat 2, and a snap-fit structure 4 is provided on the upper cover 3, and the snap-fit structure 4 includes a snap-fit part 40 provided on the upper cover 3. During the opening process of the present application, it is only necessary to flip the upper cover open at a smaller angle to form a pressure relief gap or a pressure relief channel, and the gas in the container body begins to leak out from the pressure relief gap or the pressure relief channel. The upper cover can be opened again after the gas has been completely released, which can effectively prevent the upper cover from being blown open by the high-pressure gas during the initial opening, causing liquid to be sprayed, and has the characteristics of safe and reliable use. In addition, when the upper cover is closed on the mouth of the container body for the second time, the clamping piece on the inner side of the upper cover is snapped into cooperation with the container clamping part on the outer wall of the mouth of the container body without applying outward pulling force. When the container body is shaken or hit normally inside and the air pressure increases, the snapping force is sufficient to prevent the upper cover from being blown open by the gas and causing liquid to be sprayed, thereby improving safety.

As shown in Fig. 1-17, the upper cover 3 includes a cover body 31 for being flipably connected to the cover seat 2 and a cover side portion 32 provided on the cover body 31 and protruding downward, and the clamping member 40 is provided on the inner wall of the cover body 31 and/or the cover side portion 32. As shown in Fig. 2 and Fig. 3, the inner walls of the cover body 31 and the cover side portion 32 are both provided with a clamping member 40. When it is necessary to operate the upper cover to flip and open the mouth of the container body, the user operates the cover side portion 32 to rotate outward relative to the cover body 31, so that the cover side portion 32 is tilted relative to the mouth of the container body 1, as shown in Fig. 5, at this moment, the clamping member 40 on the cover side portion 32 is separated from the container clamping part, and the clamping member 40 on the cover body 31 still maintains the clamping fit with the corresponding container clamping part. In the present application, the cover side portion 32 protrudes downward, so that the cover side portion 32 has a certain length and is easy to deform, which is convenient for opening.

As shown in FIG. 1-17 , in order to facilitate the operation and save effort, an opening wrench 321 for assisting the movement of the cover side portion 32 relative to the cover body 31 is provided on the cover side portion 32 .

As shown in FIGS. 1-9 , in order to facilitate operation and save effort, an opening pressing piece 311 for assisting the upper cover 3 to flip relative to the cover base 2 is provided on the cover body 31 and on a side away from the opening wrench 321 .

As shown in FIGS. 13-17, for the convenience of operation, the cover side portion 32 includes a cover side body connected to the cover body 31 and a cover side flip member that can move relative to the cover side body. The opening wrench 321 is formed by the cover side flip member, and a clamping member 40 is provided on the inner wall of the cover side body and/or the cover side flip member. As shown in FIG. 17, the lower end of the cover side flip member is recessed upward, so that a hand grip space is formed between the lower end of the cover side flip member and the cover seat 2, which is convenient for consumers to pull out the cover side flip member and open the upper cover. In order to facilitate rotation, a folding groove is provided between the cover side flip member and the cover side body.

As shown in Fig. 1-17, in order to achieve the anti-counterfeiting effect, the two sides of the cover side portion and the inner wall of the side wall notch of the cover body are destructibly connected. A tear strip that can be torn can also be provided between the two sides of the cover side portion 32 and the inner wall of the side wall notch 310 of the cover body 31.

As shown in Fig. 1-17, in order to achieve the anti-counterfeiting effect, the lower port of the upper cover 3 is destructibly connected to the upper port of the cover base 2. A tear strip that can be torn can also be provided between the lower port of the upper cover 3 and the upper port of the cover base 2.

As shown in FIGS. 11 , 13 and 17 , in order to facilitate the outward opening or inward restoration of the cover side portion 32 relative to the cover body 31 , the upper end of the cover side portion 32 is connected to the cover body 31 , and the cover side portion 32 is narrow at the top and wide at the bottom.

As shown in FIGS. 10-17 , the cover seat 2 is provided with a positioning groove 21 for the cover side portion 32 to be snapped into position when the upper cover 3 is flipped over to cover the mouth of the container body 1. When the upper cover is flipped over to cover the mouth of the container body, the cover side portion 31 is snapped into the positioning groove 21 for positioning, so that the upper cover can accurately and stably cover and seal the mouth of the container body, thereby preventing the upper cover from being offset and misaligned to affect the sealing effect.

As shown in FIG. 1-17 , in order to make the upper cover flip smoothly and conveniently, at least one end of the clamping member 40 is provided with a clamping guide inclined surface 401 .

As shown in FIG. 1-17 , in order to improve the sealing performance, the inner bottom of the upper cover 3 is provided with an upper cover sealing plug 312 for buckling into the mouth of the container body 1 .

As shown in Figures 12 and 16, in order to facilitate opening the container body mouth, a sealing plug notch 3121 is provided on the side wall of the upper cover sealing plug 312. When the upper cover is turned over, the upper cover only needs to be turned over a small stroke relative to the cover seat to make the sealing plug notch connect the container body mouth with the outside, thereby playing the role of early pressure relief.

As shown in Figures 1-12, in order to ensure that the upper cover remains in an open state, a hollow portion 20 is provided between the cover base 2 and the upper cover 3, and the upper cover 3 is provided with an outwardly protruding rebuttal piece 201 at a position corresponding to the hollow portion 20. When the upper cover 3 is opened or closed, the reaction force generated between the front end of the rebuttal piece 201 and the bottom of the hollow portion 20 or the outer wall of the mouth of the container body 1 has a conversion point with opposite vector directions.

As shown in Figures 1-12, in order to ensure that the upper cover remains in an open state, a hollow portion 20 is provided between the cover base 2 and the upper cover 3, and the upper cover 3 is provided with an outwardly protruding rebuttal piece 201 at a position corresponding to the hollow portion 20, and the cover base 2 is provided with an upwardly protruding shift piece 202 at a position corresponding to the hollow portion 20. When the upper cover 3 is opened or closed, the reaction force generated between the front end of the rebuttal piece 201 and the shift piece 202 has a conversion point with opposite vector directions.

As shown in Figures 13-17, in order to ensure that the upper cover remains in an open state, a hollow portion 20 is provided between the cover base 2 and the upper cover 3, and a downwardly protruding rebuttal piece 201 is provided at a position of the upper cover 3 corresponding to the hollow portion 20. When the upper cover is opened, the front end of the rebuttal piece 201 abuts against the outer wall of the mouth of the container body 1, and the reaction force between the rebuttal piece 201 and the outer wall of the mouth of the container body 1 forms an acute angle between the rebuttal piece 201 and the outer wall of the mouth of the container body.

As shown in Figures 13-17, in order to ensure that the upper cover remains in an open state, a hollow portion 20 is provided between the cover base 2 and the upper cover 3, and a downwardly protruding rebuttal piece 201 is provided at a position of the upper cover 3 corresponding to the hollow portion 20, and an upwardly extending stopper piece 202 is formed at a position of the cover base 2 corresponding to the hollow portion 20. When the upper cover is opened, the upper end of the stopper piece 202 abuts against the rebuttal piece 201, so that a force-retained acute angle is formed between the stopper piece 202 and the rebuttal piece 201.

As shown in Figures 1-17, the present application provides a reliable container, including a container body 1, the mouth of the container body 1 is connected to a reliable cover assembly as described above, and the mouth of the container body 1 or the cover seat 2 is provided with a container clamping part 41 that can be used in conjunction with a clamping part 40, which has the characteristics of good safety and easy use.

As shown in FIG9 , two container clamping parts 41 are arranged at intervals in the upper and lower parts on the mouth of the container body 1 or the cover seat 2. When the mouth of the container body 1 is covered and blocked by the upper cover 3, the clamping part 40 is clamped and matched with the container clamping part 41 located below, so that the upper cover can cover and block the mouth of the container body stably and firmly, as shown in FIG9 . When the mouth of the container body 1 is partially opened to form a pressure relief gap or a pressure relief channel, the upper cover 3 is flipped relative to the cover seat 2 so that the clamping part 40 is separated from the container clamping part 41 located below and is clamped and matched with the container clamping part 41 located above. At this time, due to the clamping and matching of the clamping part with the container clamping part located above, the upper cover is firmly connected to the container body, avoiding the phenomenon of the upper cover being broken open by the gas, causing the upper cover to separate from the mouth of the container body and splash and collide with foreign objects or consumers, ensuring safety in use.

As shown in Figure 8, two container clamping parts 41 are arranged at an interval up and down on the mouth of the container body 1 or the cover seat 2, and two clamping members 40 are arranged at an interval up and down on the upper cover 3. When the mouth of the container body 1 is closed and blocked by the upper cover 3, the upper clamping member 40 is clamped and matched with the upper container clamping part 41, and the lower clamping member 40 is clamped and matched with the lower container clamping part 41, so that the upper cover can cover and block the mouth of the container body stably and firmly. When the mouth of the container body 1 is partially opened to form a pressure relief gap or a pressure relief channel, the upper cover 3 is flipped relative to the cover base 2 so that the lower clamping member 40 is separated from the lower container clamping portion 41, and the upper clamping member 40 is kept in engagement with the upper container clamping portion 41, so that the upper cover is firmly connected to the container body, avoiding the upper cover from being broken open by the gas, causing the upper cover to be separated from the mouth of the container body and splashing and colliding with foreign objects or consumers, thereby ensuring safety in use; then continue The upper cover is flipped relative to the cover seat until the mouth of the container body is opened. During the flipping process of the upper cover, the upper clamping member 40 is kept separated from the container clamping portion 41 located above. Therefore, in the flipping process of the upper cover, the lower clamping member 40 is first separated from the lower container clamping portion 41, and then the upper clamping member 40 is kept separated from the upper container clamping portion 41, so as to achieve step-by-step separation, thereby facilitating the user to flip the upper cover to open the mouth of the container body, which is convenient to use and labor-saving. As shown in Figures 5 and 6, the outer wall of the mouth of the container body 1 has three sections or three container clamping portions 41, and the upper cover 3 is provided with three sections of clamping members 40 correspondingly engaged with the three sections of container clamping portions 41.

Furthermore, when the upper cover 3 is flipped relative to the cover base 2 so that the lower clamping member 40 is separated from the lower container clamping portion 41, an escape gap is formed between the upper clamping member 40 and the upper container clamping portion 41. When the upper cover is flipped to open the container mouth, the escape gap can facilitate the separation of the upper clamping member 40 and the upper container clamping portion 41.

Type your sequence listing free description paragraph here.

Claims

A reliable lid assembly, characterized in that it comprises a lid seat (2) for connecting to the mouth of a container body (1), an upper lid (3) for closing or opening the mouth of the container body (1) being flipably connected to the lid seat (2), a clamping structure (4) being provided on the upper lid (3), and the clamping structure (4) comprising a clamping member (40) provided on the upper lid (3).
According to claim 1, a reliable cover assembly is characterized in that the upper cover (3) comprises a cover body (31) for flipping connection with the cover base (2) and a cover side portion (32) provided on the cover body (31) and protruding downward, and the clamping member (40) is provided on the inner wall of the cover body (31) and/or the cover side portion (32).
According to claim 2, a reliable cover assembly is characterized in that an opening wrench (321) is provided on the cover side portion (32) for assisting the cover side portion (32) to move relative to the cover body (31);

Alternatively, an opening lever (321) for assisting the cover side portion (32) to move relative to the cover body (31) is provided on the cover side portion (32), and an opening pressing piece (311) for assisting the upper cover (3) to flip relative to the cover base (2) is provided on the cover body (31) at a side away from the opening lever (321).
According to claim 3, a reliable cover assembly is characterized in that the cover side portion (32) includes a cover side body connected to the cover body (31) and a cover side flip piece movable relative to the cover side body, the opening wrench (321) is formed by the cover side flip piece, and a clamping piece (40) is provided on the inner wall of the cover side body and/or the cover side flip piece.
According to claim 2, a reliable cover assembly is characterized in that the upper end of the cover side portion (32) is connected to the cover body (31), and the cover side portion (32) is narrow at the top and wide at the bottom.
According to claim 2, a reliable cover assembly is characterized in that the cover seat (2) is provided with a positioning groove (21) for the cover side (32) to be snapped into position when the upper cover (3) is turned over to cover the mouth of the container body (1).
According to the reliable cover assembly of claim 1, it is characterized in that at least one end of the clamping member (40) is provided with a clamping guide inclined surface (401).
According to claim 1, a reliable cover assembly is characterized in that the inner bottom of the upper cover (3) is provided with an upper cover sealing plug (312) for buckling into the mouth of the container body (1); or the inner bottom of the upper cover (3) is provided with an upper cover sealing plug (312) for buckling into the mouth of the container body (1), and a sealing plug notch (3121) is provided on the side wall of the upper cover sealing plug (312).
A reliable lid assembly according to any one of claims 1 to 8, characterized in that a hollow portion (20) is provided between the lid seat (2) and the upper lid (3), and a repulsive piece (201) protruding outward is provided at a position of the upper lid (3) corresponding to the hollow portion (20), and when the upper lid (3) is opened or closed, the reaction force generated between the front end of the repulsive piece (201) and the bottom of the hollow portion (20) or the outer wall of the mouth of the container body (1) has a conversion point with opposite vector directions;

Alternatively, a hollow portion (20) is provided between the cover base (2) and the upper cover (3); a portion of the upper cover (3) corresponding to the hollow portion (20) is provided with an outwardly protruding repulsion piece (201); a portion of the cover base (2) corresponding to the hollow portion (20) is provided with an upwardly protruding stop piece (202); when the upper cover (3) is opened or closed, a reaction force generated between the front end of the repulsion piece (201) and the stop piece (202) has a conversion point with opposite vector directions.
A reliable lid assembly according to any one of claims 1 to 8, characterized in that a hollow portion (20) is provided between the lid seat (2) and the upper lid (3), and a downwardly protruding rebuttal piece (201) is provided on the upper lid (3) at a position corresponding to the hollow portion (20), and when the upper lid is opened, the front end of the rebuttal piece (201) abuts against the outer wall of the mouth of the container body (1), and the reaction force between the rebuttal piece (201) and the outer wall of the mouth of the container body (1) forms an acute angle between the rebuttal piece (201) and the outer wall of the mouth of the container body;

Alternatively, a hollow portion (20) is provided between the cover base (2) and the upper cover (3); a downwardly protruding rebuttal piece (201) is provided at a portion of the upper cover (3) corresponding to the hollow portion (20); a stop piece (202) extending upward is formed at a portion of the cover base (2) corresponding to the hollow portion (20); when the upper cover is opened, the upper end of the stop piece (202) abuts against the rebuttal piece (201), so that a force-retained acute angle is formed between the stop piece (202) and the rebuttal piece (201).
A reliable container, characterized in that it comprises a container body (1), the mouth of the container body (1) is connected to a reliable cover assembly as claimed in claims 1 to 10, and the mouth of the container body (1) or the cover seat (2) is provided with a container clamping part (41) that can be used in conjunction with a clamping piece (40).
According to claim 11, a reliable container is characterized in that two container clamping parts (41) are arranged at an interval up and down on the mouth of the container body (1) or the cover seat (2); when the mouth of the container body (1) is closed and blocked by the upper cover (3), the clamping part (40) is clamped and matched with the container clamping part (41) located below; when the mouth of the container body (1) is partially opened to form a pressure relief gap or pressure relief channel, the upper cover (3) is flipped relative to the cover seat (2) so that the clamping part (40) is separated from the container clamping part (41) located below and is clamped and matched with the container clamping part (41) located above.
According to claim 11, a reliable container is characterized in that two container clamping parts (41) are arranged at an interval up and down on the mouth of the container body (1) or the cover seat (2), and two clamping members (40) are arranged at an interval up and down on the upper cover (3); when the mouth of the container body (1) is closed and blocked by the upper cover (3), the upper clamping member (40) is clamped and matched with the upper container clamping member (41), and the lower clamping member (40) is clamped and matched with the lower container clamping member (41); when the mouth of the container body (1) is partially opened to form a pressure relief gap or a pressure relief channel, the upper cover (3) is flipped relative to the cover seat (2) so that the lower clamping member (40) is separated from the lower container clamping member (41), and the upper clamping member (40) remains clamped and matched with the upper container clamping member (41).
According to claim 13, a reliable container is characterized in that when the upper cover (3) is flipped relative to the cover base (2) so that the clamping member (40) located below is separated from the container clamping portion (41) located below, an avoidance gap is formed between the clamping member (40) located above and the container clamping portion (41) located above.