Liquid container

Abstract

The utility model relates to a liquid container. The liquid container comprises a container body; the container cover is buckled on the container body, the container cover comprises an inner cover and an outer cover, the outer cover is detachably connected with the container body, the outer cover is provided with a first containing cavity used for containing liquid, the inner cover is provided with a second containing cavity used for containing liquid, and the inner cover is detachably installed in the first containing cavity. When multiple users drink water, the inner cover and the outer cover can be used as drinking cups respectively, and the use requirement for sharing of multiple users is met. When one user does not need multiple drinking cups, the inner cover can be taken down from the outer cover, the outer cover is independently installed on the container body, the function of the container cover is not affected, and normal use of the liquid container is not affected. Even if the inner cover is lost or damaged, the liquid container can be used as usual, the use flexibility and practicability of the liquid container can be improved, and various use requirements of users can be met.

Description

Technical Field

[0001] This application relates to the field of drinking water appliances, and more particularly to a liquid container. Background Technology

[0002] Liquid containers consist of a lid and a body. The lid is usually detachably connected to the body, allowing it to be used as a drinking cup when removed, making it convenient for users to drink water while out and about. However, existing lids are designed for single-person use only, making them unsuitable for sharing among multiple people and causing inconvenience. Utility Model Content

[0003] This application provides a liquid container that solves the problem in the prior art that the container lid cannot allow multiple people to drink at the same time.

[0004] This application provides a liquid container, comprising: a container body; and a container lid, which is fastened to the container body. The container lid includes an inner lid and an outer lid. The outer lid is detachably connected to the container body. The outer lid is provided with a first receiving cavity for holding liquid, and the inner lid is provided with a second receiving cavity for holding liquid. The inner lid is detachably installed in the first receiving cavity.

[0005] In the above solution, when the user is not using the container lid to drink water, the container lid is installed on the container body via the outer lid, and the inner lid is installed in the first receiving cavity of the outer lid, so that the container lid can be combined and stored without occupying extra space, which is conducive to the miniaturization of the liquid container. When a single user drinks water, the container lid can be removed from the container body, keeping the inner and outer lids connected, and the container lid as a whole can be used as a drinking cup. In this case, the second receiving cavity is used to hold the liquid poured out of the container body. When multiple users drink water, the container lid can be removed from the container body, and then the inner lid can be removed from the outer lid, and the inner and outer lids can be used as drinking cups respectively. In this case, both the first and second receiving cavities can be used to hold the liquid poured out of the container body, meeting the needs of multiple users sharing the use and improving the user experience. Since the container lid is connected to the container body via the outer lid, when a single user does not need multiple drinking cups, the inner lid can be removed from the outer lid, and the outer lid can be installed separately on the container body without affecting the sealing and dustproof function of the container lid, or affecting the normal use of the liquid container. In this way, even if the inner lid is lost or damaged, the liquid container can still be used normally, which helps to improve the flexibility and practicality of the liquid container and can meet the various needs of users.

[0006] In one possible design, one of the inner cover and the outer cover is provided with a magnetic element, and the other is provided with an adsorption part, wherein the magnetic element and the adsorption part are magnetically connected; or, both the inner cover and the outer cover are provided with magnetic elements, wherein the magnetic element of the inner cover is magnetically connected to the magnetic element of the outer cover.

[0007] In the above solution, when one of the inner and outer covers has a magnetic component and the other has an adsorption component, the inner and outer covers can be detachably connected through the magnetic attraction between the magnetic component and the adsorption component. Alternatively, when both the inner and outer covers have magnetic components, their magnetic components can attract each other, allowing for a detachable connection. This magnetic connection eliminates the need for physical connection structures on the outer wall of the inner cover and the inner wall of the outer cover, reducing hard-to-clean areas, making cleaning easier, and minimizing the risk of bacterial growth. Furthermore, when the inner cover needs to be removed, the user can easily separate it from the outer cover with a little force, making it even more convenient to use.

[0008] In one possible design, the outer wall of the outer cover is threadedly connected to the inner wall of the container body.

[0009] In the above scheme, the threaded connection helps to improve the reliability of the connection between the outer cover and the container body, reduce the risk of the container cover falling off, and the threaded structure can play a certain sealing role between the outer cover and the container body.

[0010] In one possible design, the container lid further includes a sealing ring fitted onto the outer wall of the outer lid; the sealing ring abuts against the inner wall of the container body radially.

[0011] In the above solution, the sealing ring can play a sealing role between the outer cover and the container body, which helps to improve the sealing effect between the outer cover and the container body and reduce the risk of liquid in the container body leaking out from the gap between the outer cover and the container body.

[0012] In one possible design, the outer wall of the outer cover is provided with a first threaded structure for threaded connection with the container body; the outer wall of the outer cover is also provided with a mounting groove, which is located on the side of the first threaded structure away from the bottom wall of the outer cover along the axial direction of the outer cover, and the sealing ring is installed in the mounting groove.

[0013] In the above design, the mounting groove restricts the axial movement of the sealing ring along the outer cover, thereby improving the installation stability of the sealing ring. Specifically, along the axial direction of the outer cover, the mounting groove is located on the side of the first threaded structure away from the bottom wall of the outer cover. When the outer cover is connected to the container body, the sealing ring is located below the first threaded structure, closer to the interior of the container body, to achieve a better sealing effect. Especially when the container contains solids, the sealing ring can prevent solids from entering the first threaded structure, reducing the difficulty of subsequent cleaning for the user.

[0014] In one possible design, the bottom wall of the outer cover is provided with a first abutting portion, which protrudes outward along the radial direction of the outer cover; when the outer cover is connected to the container body, the first abutting portion abuts against the side wall of the container body along the axial direction of the container body.

[0015] In the above solution, when the first abutting part abuts against the side wall of the container body along the axial direction of the container body, the container lid and the container body can mutually limit each other's position. That is, the user can judge whether the container lid is installed correctly by observing the relative position of the first abutting part and the container body. Moreover, the container body can provide a certain degree of support for the first abutting part, thereby helping to improve the installation stability of the container lid.

[0016] In one possible design, a second abutment portion is provided on the outer side wall of the inner cover along the axial direction of the inner cover, and the second abutment portion protrudes outward along the radial direction of the inner cover; when the inner cover is installed in the first receiving cavity, the second abutment portion abuts against the side wall of the outer cover along the axial direction of the outer cover.

[0017] In the above solution, when the second abutment part abuts against the side wall of the outer cover along the axial direction of the outer cover, the outer cover and the inner cover can mutually limit each other's position. That is, the user can judge whether the inner cover is installed correctly by observing the relative position of the second abutment part and the outer cover. Moreover, when the user uses the container lid as a whole as a drinking cup, the side wall of the outer cover can provide a certain degree of support for the second abutment part, which helps to improve the installation stability of the inner cover, avoids the inner cover shaking during use, and improves the user experience.

[0018] In one possible design, the outer cover is provided with a first opening, through which the first receiving cavity communicates with the outside; along the axial direction of the outer cover, a first vertical section is provided at one end of the outer side wall of the outer cover near the first opening, and the surface of the first vertical section is a smooth surface.

[0019] In the above scheme, the surface of the first vertical section is a smooth surface, and the first vertical section can serve as the mouth structure of the drinking cup, making it convenient for users to drink water from the first opening.

[0020] In one possible design, the inner cover is provided with a second opening, through which the second receiving cavity communicates with the outside; along the axial direction of the inner cover, a second vertical section is provided at one end of the outer side wall of the inner cover near the second opening, and the surface of the second vertical section is a smooth surface.

[0021] In the above solution, the surface of the second vertical section is a smooth surface, and the second vertical section can serve as the mouth structure of the drinking cup, making it convenient for users to drink water from the second opening.

[0022] In one possible design, the liquid container further includes a filter screen; the inner wall of at least one of the container body and the inner cover is provided with ribs, and the filter screen is installed on the ribs; and / or, at least a portion of the outer diameter of the inner cover is adapted to the inner diameter of the outer cover.

[0023] In the above scheme, the filter screen is used to hold tea leaves or medicinal herbs. At least one of the container body and the inner lid has ribs on its inner wall for mounting the filter screen, achieving solid-liquid separation. When the container body has a first rib, the filter screen can be mounted on the first rib. When the inner lid has a second rib, the filter screen can be mounted on the second rib. When the container body has the first rib and the inner lid has the second rib, the height of the filter screen can be adjusted by changing its mounting position, thereby adjusting the brewing concentration. At least a portion of the outer diameter of the inner lid matches the inner diameter of the outer lid to ensure that the inner lid can be accommodated within the first receiving cavity of the outer lid, achieving a nesting effect between the inner and outer lids.

[0024] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0025] Figure 1 This is a cross-sectional structural diagram of the liquid container provided in this application;

[0026] Figure 2 for Figure 1 A schematic diagram of the container lid structure;

[0027] Figure 3 for Figure 2 A cross-sectional structural diagram of the container lid;

[0028] Figure 4 for Figure 1 Exploded view of the container lid;

[0029] Figure 5 for Figure 4 A cross-sectional structural diagram of the container lid;

[0030] Figure 6 for Figure 1 A cross-sectional view of the liquid container when the inner lid is removed.

[0031] Figure label:

[0032] 1-Container body;

[0033] 11-Second thread structure;

[0034] 12-First protruding rib;

[0035] 2- Container lid;

[0036] 21-Outer cover;

[0037] 211 - First receiving cavity;

[0038] 212 - First magnetic component;

[0039] 213 - First thread structure;

[0040] 214 - Mounting slot;

[0041] 215 - First contact section;

[0042] 216 - First opening;

[0043] 217 - First vertical segment;

[0044] 22-Inner cover;

[0045] 221 - Second receiving cavity;

[0046] 222 - Second magnetic component;

[0047] 223 - Second contact section;

[0048] 224 - Second opening;

[0049] 225 - Second vertical segment;

[0050] 226 - Second rib;

[0051] 23 - Sealing ring;

[0052] 231-Sealing rib.

[0053] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0054] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0055] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0056] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0057] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0058] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0059] This application provides a liquid container, such as... Figure 1 As shown, the liquid container includes a container body 1 and a container lid 2. The container body 1 is used to store liquid, and the container lid 2 is fastened to the container body 1 to seal and prevent dust from entering the liquid inside the container body 1. The container lid 2 includes an inner lid 22 and an outer lid 21. The outer lid 21 is detachably connected to the container body 1 to allow for the installation and removal of the container lid 2. The outer lid 21 is provided with a first receiving cavity 211 for holding liquid, and the inner lid 22 is provided with a second receiving cavity 221 for holding liquid. The inner lid 22 is detachably installed in the first receiving cavity 211.

[0060] like Figure 1 As shown, when the user is not using the container lid 2 for drinking, the container lid 2 is installed on the container body 1 via the outer lid 21, and the inner lid 22 is installed within the first receiving cavity 211 of the outer lid 21, so that the container lid 2 forms a combined storage effect. The inner lid 22 does not occupy additional space, which is beneficial for miniaturizing the liquid container. At least a portion of the outer diameter of the inner lid 22 is adapted to the inner diameter of the outer lid 21 to ensure that the inner lid 22 can be accommodated within the first receiving cavity 211, achieving a nesting effect between the inner lid 22 and the outer lid 21. Figure 2 and Figure 3 As shown, when a user is drinking water alone, the container lid 2 can be removed from the container body 1, keeping the inner lid 22 connected to the outer lid 21, and the container lid 2 can be used as a drinking cup. At this time, the second receiving cavity 221 is used to hold the liquid poured out of the container body 1. Figure 4 and Figure 5As shown, when multiple users are drinking water, the container lid 2 can be removed from the container body 1, and the inner lid 22 can be removed from the outer lid 21. The inner lid 22 and the outer lid 21 can be used as drinking cups respectively. At this time, the first receiving cavity 211 and the second receiving cavity 221 can be used to hold the liquid poured out of the container body 1, which meets the needs of multiple users to share the use and helps to improve the user experience.

[0061] like Figure 6 As shown, since the container lid 2 is connected to the container body 1 via the outer lid 21, when a user needs multiple drinking cups, the inner lid 22 can be removed from the outer lid 21, and the outer lid 21 can be installed separately onto the container body 1 without affecting the sealing and dustproof function of the container lid 2, nor affecting the normal use of the liquid container. In this way, even if the inner lid 22 is lost or damaged, the liquid container can still be used normally, which improves the flexibility and practicality of the liquid container and meets various user needs.

[0062] The inner cover 22 can be one or more. When the container lid 2 has multiple inner covers 22, the inner diameters of the multiple inner covers 22 are different and they are connected together in a nested manner. That is, the inner cover 22 with a smaller inner diameter can be detachably installed in the second receiving cavity 221 of the inner cover 22 with a larger inner diameter, so as to meet the drinking needs of more people at the same time without increasing the volume of the liquid container.

[0063] In this embodiment, the inner cover 22 and the outer cover 21 can be detachably connected by means of threaded connection, snap-fit ​​connection or magnetic connection.

[0064] When the inner cover 22 and the outer cover 21 are detachably connected by magnetic attraction, neither the outer wall of the inner cover 22 nor the inner wall of the outer cover 21 needs a physical connection structure. This reduces hard-to-clean areas, makes cleaning easier for users, and helps reduce the risk of bacterial growth. Moreover, when it is necessary to remove the inner cover 22, users can easily separate the inner cover 22 from the outer cover 21 with a little force, making it more convenient to use.

[0065] Specifically, to achieve magnetic connection, at least one of the inner cover 22 and the outer cover 21 should be provided with a magnetic element. In a first embodiment, the outer cover 21 is provided with a first magnetic element 212, and the inner cover 22 is provided with an adsorption portion, the adsorption portion corresponding to the position of the first magnetic element 212. When the inner cover 22 is placed in the first receiving cavity 211, the first magnetic element 212 can be attracted to the adsorption portion to achieve magnetic connection. Specifically, the first magnetic element 212 can be installed on the top wall or side wall of the outer cover 21, and the adsorption portion can be a material sheet installed inside the inner cover 22 corresponding to the position of the first magnetic element 212. This material sheet is made of a material that can attract the first magnetic element 212, and can be one of metal, metal oxide, or ferromagnetic composite material. Alternatively, the entire inner cover 22 can be made of a material that can attract the first magnetic element 212, and the adsorption portion is the area on the inner cover 22 corresponding to the first magnetic element 212.

[0066] In the second embodiment, the inner cover 22 is provided with a second magnetic element 222, and the outer cover 21 is provided with an adsorption portion. The adsorption portion corresponds to the position of the second magnetic element 222. When the inner cover 22 is installed in the first receiving cavity 211, the second magnetic element 222 can be attracted to the adsorption portion to achieve magnetic connection. Specifically, the second magnetic element 222 can be installed on the top wall or side wall of the inner cover 22, and the adsorption portion can be a material sheet installed inside the outer cover 21 corresponding to the position of the second magnetic element 222. This material sheet is made of a material that can be attracted to the second magnetic element 222, and can be one of metal, metal oxide, or ferromagnetic composite material. Alternatively, the entire outer cover 21 can be made of a material that can be attracted to the second magnetic element 222, and the adsorption portion is the area on the outer cover 21 corresponding to the second magnetic element 222.

[0067] In the third embodiment, the outer cover 21 is provided with a first magnetic element 212, and the inner cover 22 is provided with a second magnetic element 222, such as... Figure 1 and Figure 3 As shown, the first magnetic component 212 and the second magnetic component 222 are positioned correspondingly. When the inner cover 22 is installed into the first receiving cavity 211, the first magnetic component 212 and the second magnetic component 222 can attract each other to achieve a magnetic connection. In this embodiment, the first magnetic component 212 is installed inside the bottom wall of the outer cover 21 and the second magnetic component 222 is installed inside the bottom wall of the inner cover 22. On the one hand, this avoids the magnetic components being exposed and coming into contact with the liquid in the first receiving cavity 211 or the second receiving cavity 221. On the other hand, with the magnetic components installed on the bottom wall, it is easier for the user to remove the inner cover 22.

[0068] In this embodiment, the outer cover 21 and the container body 1 can be detachably connected via magnetic connection, snap-fit ​​connection, or threaded connection. The inner wall of the outer cover 21 can be connected to the outer wall of the container body 1, or the outer wall of the outer cover 21 can be connected to the inner wall of the container body 1. The connection structure between the outer cover 21 and the container body 1 will be described in detail below, taking as an example the outer wall of the outer cover 21 extending into the container body 1 and the outer wall of the outer cover being threadedly connected to the inner wall of the container body 1.

[0069] like Figure 1 and Figure 6 As shown, the outer wall of the outer cover 21 is provided with a first threaded structure 213, and the inner wall of the container body 1 is provided with a second threaded structure 11. The outer cover 21 and the container body 1 are connected by threads through the first threaded structure 213 and the second threaded structure 11. When the outer cover 21 and the container body 1 are connected by threads, it is beneficial to improve the reliability of the connection between the outer cover 21 and the container body 1, reduce the risk of the container cover 2 falling off, and the first threaded structure 213 and the second threaded structure 11 can form a tight connection, which can play a certain sealing role between the outer cover 21 and the container body 1.

[0070] like Figure 1 As shown, the container lid 2 also includes a sealing ring 23, which is fitted onto the outer wall of the outer lid 21. When the outer lid 21 is connected to the container body 1, the sealing ring 23 can abut against the inner wall of the container body 1 along the radial direction X of the container body 1 to play a sealing role between the outer lid 21 and the container body 1. This helps to improve the sealing effect between the outer lid 21 and the container body 1 and reduce the risk of liquid in the container body 1 leaking out from the gap between the outer lid 21 and the container body 1.

[0071] Combination Figure 3 As shown, the sealing ring 23 has sealing ribs 231. Along the axial direction Z of the outer cover 21, the sealing ring 23 includes at least two spaced sealing ribs 231. If one of the sealing ribs 231 deforms and fails, the remaining sealing ribs 231 can still ensure the sealing effect of the sealing ring 23, which helps to improve the reliability and service life of the sealing ring 23, thereby improving the sealing effect between the container cover 2 and the container body 1. Moreover, when adjacent sealing ribs 231 are spaced apart, a gap is formed between two adjacent sealing ribs 231. This gap can provide a certain space for the deformation of the sealing ribs 231, thus facilitating the sealing ribs 231 to undergo larger deformation. This allows the sealing ribs 231 to adhere tightly to the inner wall of the container body 1 under the action of their own restoring force, which helps to further improve the sealing effect of the sealing ring 23.

[0072] like Figure 3As shown, the outer wall of the outer cover 21 is provided with a mounting groove 214 for installing the sealing ring 23. The mounting groove 214 can restrict the movement of the sealing ring 23 along the axial direction Z of the outer cover 21, thereby improving the installation stability of the sealing ring 23. Specifically, along the axial direction Z of the outer cover 21, the mounting groove 214 is located on the side of the first threaded structure 213 away from the bottom wall of the outer cover 21. When the outer cover 21 is connected to the container body 1, the sealing ring 23 is located below the first threaded structure 213, closer to the interior of the container body 1, so as to achieve a better sealing effect. In particular, when the container body 1 contains solids, the sealing ring 23 can prevent solids from entering the first threaded structure 213 and the second threaded structure 11, thereby reducing the difficulty of subsequent cleaning for the user.

[0073] like Figure 1 and Figure 2 As shown, the bottom wall of the outer cover 21 is provided with a first abutment portion 215, which protrudes outward along the radial direction X of the outer cover 21. When the outer cover 21 is connected to the container body 1, the first abutment portion 215 abuts against the side wall of the container body 1 along the axial direction Z of the container body 1, so that the container cover 2 and the container body 1 can be mutually positioned. That is, the user can judge whether the container cover 2 is installed in place by observing the relative position of the first abutment portion 215 and the container body 1. Moreover, the container body 1 can provide a certain support for the first abutment portion 215, thereby improving the installation stability of the container cover 2.

[0074] like Figure 6 As shown, the outer cover 21 is provided with a first opening 216, and the first receiving cavity 211 communicates with the outside through the first opening 216. Along the axial direction Z of the outer cover 21, a first vertical section 217 is provided at one end of the outer side wall of the outer cover 21 near the first opening 216. The surface of the first vertical section 217 is a smooth surface. The first vertical section 217 can serve as the mouth structure of a drinking cup, making it convenient for users to drink water from the first opening 216.

[0075] like Figure 3 and Figure 4 As shown, along the axial direction Z of the inner cover 22, a second abutment portion 223 is provided on the outer side wall of the inner cover 22, and the second abutment portion 223 protrudes outward along the radial direction X of the inner cover 22. When the inner cover 22 is installed in the first receiving cavity 211, the second abutment portion 223 abuts against the side wall of the outer cover 21 along the axial direction Z of the outer cover 21, so that the outer cover 21 and the inner cover 22 can be mutually positioned. That is, the user can judge whether the inner cover 22 is installed properly by observing the relative position of the second abutment portion 223 and the outer cover 21. Moreover, when the user uses the container cover 2 as a whole as a drinking cup, the side wall of the outer cover 21 can provide a certain support for the second abutment portion 223, which helps to improve the installation stability of the inner cover 22, avoids the inner cover 22 from shaking during use, and improves the user experience.

[0076] like Figure 6 As shown, the inner cover 22 is provided with a second opening 224, and the second receiving cavity 221 communicates with the outside through the second opening 224. Along the axial direction Z of the inner cover 22, a second vertical section 225 is provided at one end of the outer side wall of the inner cover 22 near the second opening 224. The surface of the second vertical section 225 is a smooth surface. The second vertical section 225 can serve as the cup mouth structure of the drinking cup, making it convenient for users to drink water from the second opening 224.

[0077] The second vertical segment 225 can be located on the side of the second abutment portion 223 near the second opening 224, meaning the second vertical segment 225 and the second abutment portion 223 can be separate structures. Alternatively, as... Figure 4 As shown, the second vertical segment 225 can also be directly formed on the outer surface of the second abutment portion 223, that is, the second vertical segment 225 and the second abutment portion 223 can also be an integral structure.

[0078] In this embodiment, the liquid container further includes a filter screen (not shown in the figure), which is used to hold tea leaves or medicinal herbs. At least one of the container body 1 and the inner cover 22 has ribs on its inner wall for installing the filter screen, thereby achieving solid-liquid separation. Figure 1 As shown, when the container body 1 is provided with the first protruding rib 12, the filter screen can be installed on the first protruding rib 12. When the inner cover 22 is provided with the second protruding rib 226, the filter screen can be installed on the second protruding rib 226. When the container body 1 is provided with the first protruding rib 12 and the inner cover 22 is provided with the second protruding rib 226, the height of the filter screen can be adjusted by changing the installation position of the filter screen, thereby adjusting the brewing concentration.

[0079] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A liquid container, characterized in that, include: container body(1); A container lid (2) is fastened to the container body (1). The container lid (2) includes an inner lid (22) and an outer lid (21). The outer lid (21) is detachably connected to the container body (1). The outer lid (21) is provided with a first receiving cavity (211) for holding liquid. The inner lid (22) is provided with a second receiving cavity (221) for holding liquid. The inner lid (22) is detachably installed in the first receiving cavity (211).

2. The liquid container according to claim 1, characterized in that, One of the inner cover (22) and the outer cover (21) is provided with a magnetic element, and the other is provided with an adsorption part. The magnetic element and the adsorption part are magnetically connected. Alternatively, both the inner cover (22) and the outer cover (21) are provided with magnetic elements, and the magnetic elements of the inner cover (22) and the magnetic elements of the outer cover (21) are magnetically connected.

3. The liquid container according to claim 1, characterized in that, The outer wall of the outer cover (21) is threadedly connected to the inner wall of the container body (1).

4. The liquid container according to claim 3, characterized in that, The container lid (2) also includes a sealing ring (23), which is fitted onto the outer side wall of the outer lid (21); The sealing ring (23) abuts against the inner wall of the container body (1) radially.

5. The liquid container according to claim 4, characterized in that, The outer wall of the outer cover (21) is provided with a first threaded structure (213) for threaded connection with the container body (1); The outer wall of the outer cover (21) is also provided with a mounting groove (214). Along the axial direction of the outer cover (21), the mounting groove (214) is located on the side of the first threaded structure (213) away from the bottom wall of the outer cover (21), and the sealing ring (23) is installed in the mounting groove (214).

6. The liquid container according to claim 1, characterized in that, The bottom wall of the outer cover (21) is provided with a first abutting part (215), which protrudes outward along the radial direction of the outer cover (21); When the outer cover (21) is connected to the container body (1), the first abutting part (215) abuts against the side wall of the container body (1) along the axial direction of the container body (1).

7. The liquid container according to claim 1, characterized in that, Along the axial direction of the inner cover (22), a second abutment portion (223) is provided on the outer side wall of the inner cover (22), and the second abutment portion (223) protrudes outward along the radial direction of the inner cover (22); When the inner cover (22) is installed in the first receiving cavity (211), the second abutting part (223) abuts against the side wall of the outer cover (21) along the axial direction of the outer cover (21).

8. The liquid container according to any one of claims 1-7, characterized in that, The outer cover (21) is provided with a first opening (216), and the first receiving cavity (211) communicates with the outside through the first opening (216); Along the axial direction of the outer cover (21), a first vertical section (217) is provided at one end of the outer side wall of the outer cover (21) near the first opening (216), and the surface of the first vertical section (217) is a smooth surface.

9. The liquid container according to any one of claims 1-7, characterized in that, The inner cover (22) is provided with a second opening (224), and the second receiving cavity (221) communicates with the outside through the second opening (224); Along the axial direction of the inner cover (22), a second vertical section (225) is provided at one end of the outer side wall of the inner cover (22) near the second opening (224), and the surface of the second vertical section (225) is a smooth surface.

10. The liquid container according to any one of claims 1-7, characterized in that, The liquid container also includes a filter screen; At least one of the container body (1) and the inner cover (22) has ribs on its inner wall, and the filter screen is installed on the ribs; and / or, At least a portion of the outer diameter of the inner cover (22) is adapted to the inner diameter of the outer cover (21).

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