Container cover and heat preservation container

Abstract

The utility model provides a container cover and a heat preservation container, and the container cover comprises a cover body which is used for covering a container body; the at least two sliding blocks are connected to the cover body in a sliding mode, clamping hooks are arranged below the sliding blocks, the opening directions of the clamping hooks face the center line of the cover body, and the sliding blocks are provided with first transmission parts; the driving piece is connected to the cover body, the driving piece is provided with second transmission parts corresponding to the sliding blocks, and the second transmission parts are matched with the first transmission parts so as to drive the sliding blocks to be synchronously close to or away from the center line of the cover body, so that the clamping hook is buckled with the container body or unbuckled from the container body. The sanitary safety of the heat preservation container can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of daily necessities, and in particular to a container cover and a heat-insulating container. Background Art

[0002] Thermal insulation containers typically consist of a main body and a lid, which is removably attached to the opening of the main body to close it. For larger containers, such as insulated lunch boxes, the lid is typically attached to the main body using a snap-on design. This connection can create difficult-to-clean corners inside the container, impacting the user experience. Utility Model Content

[0003] The present application provides a container cover and a thermal insulation container to improve the hygiene and safety of the thermal insulation container.

[0004] A first aspect of the present application provides a container lid, comprising:

[0005] A cover body, used for covering the container body;

[0006] At least two sliders are slidably connected to the cover body, a hook is provided below the slider, the opening direction of the hook is toward the center line of the cover body, and the slider is provided with a first transmission part;

[0007] A driving member is connected to the cover body, and the driving member is provided with a second transmission part corresponding to each slider. The second transmission part cooperates with the first transmission part to drive each slider to synchronously approach or move away from the center line of the cover body, so that the hook can be locked or released with the container body.

[0008] The container cover provided in the present application includes a cover body, at least two sliders and a driving member. The cover body is used to cover the container body, and the slider is slidably connected to the cover body. The slider is provided with a first transmission part; the driving member is connected to the cover body, and the driving member is provided with a second transmission part corresponding to each slider. The second transmission part cooperates with the first transmission part to drive each slider to synchronously approach or move away from the center line of the cover body; a hook is provided under the slider, and the opening direction of the hook is toward the center line of the cover body, so that the hook can be snap-fitted with the container body from the outside to the inside. That is to say, the container body only needs to be provided with a matching groove on the outer periphery, so that the inner surface of the container body can be kept smooth and flat, avoiding the formation of dead corners that are difficult to clean inside the container body, thereby improving the hygiene and safety of the use of the thermal insulation container.

[0009] Optionally, the driving member includes a rotating shaft, which is arranged parallel to the cover body to reduce the overall thickness of the container cover and make the structure of the container cover more compact; the container cover includes two sliders, which are symmetrically arranged at both ends of the rotating shaft, and the sliding direction of the slider is parallel to the axis of the rotating shaft, so as to avoid the rotating shaft from being subjected to bending moment and causing deformation and other damage, effectively improving the movement accuracy of the slider and extending the service life of the container cover.

[0010] Optionally, the first transmission part and the second transmission part abut against each other along the axial direction of the rotating shaft, and the abutting surface of the second transmission part and the first transmission part is a helical surface. On the one hand, the first transmission part and the second transmission part abut against each other only at their end surfaces, so that there is no overlapping area between the two parts along the axial direction of the rotating shaft, thereby improving the effective utilization rate of materials; on the other hand, the end surfaces of the second transmission part and the first transmission part are both helical surfaces, so that the first transmission part and the second transmission part form a surface contact when they abut against each other, thereby increasing the stability and reliability of the mutual cooperation between the two parts.

[0011] Optionally, the helical surface includes a first helical surface and a second helical surface that are centrally symmetrical to each other, and a stop step is formed between the first helical surface and the second helical surface; when the hook is engaged, the stop steps of the first transmission part and the second transmission part abut against each other. On the one hand, during the rotation of the shaft, the first helical surfaces of the first transmission part and the second transmission part always maintain abutment, and the second helical surfaces of the first transmission part and the second transmission part always maintain abutment, so as to increase the matching area of ​​the first transmission part and the second transmission part, thereby increasing the stability of the rotation of the shaft; on the other hand, the stop step forms a limit, so that the shaft can only rotate in one direction to release the hook, thereby accurately defining the rotation end point of the shaft and ensuring that the hook can accurately stay in the engaged state.

[0012] Optionally, the spiral surface includes a first spiral surface and a second spiral surface that are mirror-symmetrical to each other; when the hook is locked, the first spiral surface of the first transmission part and the second transmission part abut against each other, and the second spiral surface of the first transmission part and the second transmission part abut against each other, so that the forward and reverse rotation of the rotating shaft can smoothly release the hook from the lock, thereby improving the convenience of the cover opening operation.

[0013] Optionally, an elastic member is provided between the slider and the lid to enable the slider to slide toward the centerline of the lid. When the second transmission portion releases its push on the first transmission portion, the slider automatically moves toward the centerline of the lid under the action of the elastic member, thereby enabling the hook to automatically engage, ensuring a secure connection between the container lid and the container body.

[0014] Optionally, a handle is fixed to one side of the rotating shaft, and the handle protrudes from the outer surface of the rotating shaft in the radial direction of the rotating shaft; when the handle is perpendicular to the cover body, the slider approaches the center line of the cover body, and the hook is locked; when the handle is parallel to the cover body, the slider moves away from the center line of the cover body, and the hook is released. On the one hand, the handle has a use state and a storage state as the rotating shaft rotates, which can meet the portability requirements of the thermal insulation container and reduce the storage volume of the thermal insulation container; on the other hand, the state of the hook is controlled by the state of the handle, and there is no need to provide a dedicated operating switch for the hook, which can reduce the number of parts, improve the convenience of operation, and prevent the user from lifting the thermal insulation container when the container lid is not closed tightly, thereby improving the safety of use.

[0015] Optionally, the edge of the cover body is provided with a downwardly extending flange, and the flange is provided with a notch; the hook includes an extension section and a protrusion, the extension section complements the notch, and the protrusion is arranged on the inner side of the extension section, so that the container cover forms a smooth and continuous outer peripheral surface, thereby improving the appearance of the container cover.

[0016] Optionally, the lid comprises a bottom shell and an upper cover connected to each other, with the slider and the driver interposed between the bottom shell and the upper cover. A groove is provided in the center of the upper cover, the bottom of which abuts against the bottom of the bottom shell, and a portion of the driver extends through the bottom of the groove and is exposed on the outside of the lid. A double-layered structure is formed in the center of the lid, increasing the strength of the lid in the central region and preventing damage such as deformation or collapse. The portion of the driver exposed outside the lid is accommodated within the groove, thereby reducing the overall thickness of the container lid and improving the compactness of the container lid structure.

[0017] A second aspect of the present application provides a heat-insulating container, comprising a container body and any one of the container lids provided in the present application, wherein a card slot is provided on the outer periphery of the container body;

[0018] When the container cover is closed on the mouth of the container body, the hook is locked in the slot.

[0019] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the thermal insulation container provided in an embodiment of the present application in a buckled state;

[0021] Figure 2 for Figure 1 A partial cross-sectional view of

[0022] Figure 3A schematic diagram of the thermal insulation container provided in an embodiment of the present application in a released buckle state;

[0023] Figure 4 for Figure 3 A partial cross-sectional view of

[0024] Figure 5 A three-dimensional diagram of a container cover provided in an embodiment of the present application;

[0025] Figure 6 An exploded view of a container cover provided in an embodiment of the present application;

[0026] Figure 7 A schematic diagram of a spiral surface provided in an embodiment of the present application;

[0027] Figure 8 A schematic diagram of another spiral surface provided in an embodiment of the present application.

[0028] Reference numerals:

[0029] 1-Container lid;

[0030] 11-cover;

[0031] 11a- bottom shell;

[0032] 11b-upper cover;

[0033] 111-Flanging;

[0034] 112-gap;

[0035] 113-groove;

[0036] 12-slider;

[0037] 121-first transmission unit;

[0038] 122-hook;

[0039] 122a- extension section;

[0040] 122b-protrusion;

[0041] 13- driving member;

[0042] 131- second transmission unit;

[0043] 132-rotating shaft;

[0044] 133-handle;

[0045] 14-helicoid;

[0046] 141-first helicoid;

[0047] 142-second helicoid;

[0048] 143-stop step;

[0049] 16- elastic member;

[0050] 17-sealing ring;

[0051] 2-Container body;

[0052] 21-Card slot.

[0053] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0055] In the description of this application, unless otherwise specified or limited, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0056] In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present application are described from the perspectives shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should be understood that when it is mentioned that an element is connected to another element "on" or "under", it can not only be directly connected to the other element "on" or "under", but also indirectly connected to the other element "on" or "under" through an intermediate element.

[0057] like Figures 1-4 As shown, an embodiment of the present application provides a heat-insulating container, which includes a container body 2 and a container lid 1. The container lid 1 is detachably connected to the mouth of the container body 2. The container body 2 can be insulated by any method such as double-layer vacuum. The outer periphery of the container body 2 is provided with a latching groove 21; when the container lid 1 is closed on the mouth of the container body 2, the latching hook 122 of the container lid 1 is locked in the latching groove 21.

[0058] like Figures 1-8As shown, the container cover 1 provided in the embodiment of the present application includes a cover body 11, at least two sliders 12 and a driving member 13. The cover body 11 forms the main structure of the container cover 1, and is used to cover the container body 2. The cover body 11 can be set to an adaptive circle or square shape, etc. according to the shape of the container body 2. The slider 12 is slidably connected to the cover body 11. The sliding direction of the slider 12 is roughly parallel to the plane direction of the cover body 11. The slider 12 can slide in the direction close to or away from the center line of the cover body 11. The slider 12 is provided with a first transmission part 121. The driving member 13 is connected to the cover body 11. The driving member 13 is provided with a second transmission part 131 corresponding to each slider 12. The second transmission part 131 cooperates with the first transmission part 121 to drive each slider 12 to synchronously approach or move away from the center line of the cover body 11. A hook 122 is provided under the slider 12, and the opening direction of the hook 122 is toward the center line of the cover body 11, so that the hook 122 can be snap-fitted from the outside to the inside. That is to say, the container body 2 only needs to be provided with a matching groove 21 on the periphery, so that the inner surface of the container body 2 can remain smooth and flat, avoiding the formation of dead corners that are difficult to clean inside the container body 2, thereby improving the hygiene and safety of the use of the insulation container.

[0059] Specifically, when the slider 12 slides in the direction close to the center line of the cover body 11, the hook 122 can be locked with the slot 21 of the container body 2, thereby fixing the container cover 1 to the container body 2; when the slider 12 slides in the direction away from the center line of the cover body 11, the hook 122 can be released from the slot 21 of the container body 2, thereby allowing the container cover 1 and the container body 2 to be separated and disassembled from each other.

[0060] Furthermore, the edge of the lid 11 is provided with a downwardly extending flange 111, which is used to surround the outer periphery of the container body 2. The flange 111 is provided with notches 112 at positions corresponding to the sliders 12. The hook 122 includes an extension section 122a and a protrusion 122b. The extension section 122a complements the notch 112, and the protrusion 122b is disposed on the inner side of the extension section 122a, so that the container lid 1 forms a smooth and continuous outer peripheral surface, thereby improving the appearance of the container lid 1. Specifically, when the hook 122 is engaged, the extension section 122a is embedded in the notch 112, forming a smooth and continuous outer peripheral surface of the container lid 1; when the hook 122 is unengaged, the extension section 122a protrudes outside the notch 112, thereby serving as a reminder to prevent the user from lifting the container lid 1 when the hook 122 is not engaged, causing food to spill.

[0061] The lid 11 includes a bottom shell 11a and a top cover 11b that are interconnected. That is, the bottom shell 11a and the top cover 11b are manufactured separately and then connected to form a single unit using snaps or screws. The bottom shell 11a forms a seal with the container; for example, a sealing ring 17 may be provided on the bottom shell 11a. The flange 111 may be formed by the edge of the bottom shell 11a or the edge of the top cover 11b. The slider 12 is sandwiched between the bottom shell 11a and the top cover 11b, providing reliable guidance for the slider 12 and enhancing the appearance of the container lid 1. The driver 13 is sandwiched between the bottom shell 11a and the top cover 11b. A portion of the driver 13 passes through the top cover 11b and is exposed on the outside of the lid 11, allowing the user to operate the driver 13 from the outside of the container lid 1, thereby improving operational convenience.

[0062] Furthermore, a groove 113 is provided in the center of the upper cover 11b. The bottom of the groove 113 abuts against the bottom of the bottom shell 11a, forming a double-layered structure in the center of the cover 11. This increases the strength of the cover 11 in the central area and prevents damage such as deformation or collapse in the center of the cover 11. A portion of the driving member 13 passes through the bottom of the groove 113 and is exposed outside the cover 11. The portion of the driving member 13 exposed outside the cover 11 is accommodated within the groove 113, thereby reducing the overall thickness of the container cover 1 and improving the compactness of the container cover 1.

[0063] The driving member 13 can be slidably connected to the cover 11, and the first transmission portion 121 and the second transmission portion 131 can adopt mutually matching inclined surfaces. The driving member 13 can be coaxially rotatably connected to the cover 11, and the first transmission portion 121 and the second transmission portion 131 can adopt mutually matching guide pins and obliquely extending guide grooves.

[0064] In one embodiment, the driving member 13 includes a rotating shaft 132 disposed parallel to the lid 11. Both ends of the rotating shaft 132 are rotatably connected to the walls of the groove 113, thereby reducing the overall thickness of the container lid 1 and making the container lid 1 more compact. The second transmission portion 131 cooperates with the first transmission portion 121 to convert the rotational motion of the rotating shaft 132 into linear motion of the slider 12. For example, the second transmission portion 131 and the first transmission portion 121 may be coupled to form a rack-and-pinion mechanism or a screw-nut mechanism, as long as the mechanism can convert rotational motion into linear motion.

[0065] Furthermore, the container cover 1 includes two sliders 12, which are symmetrically arranged at both ends of the rotating shaft 132. The sliding direction of the sliders 12 is parallel to the axis of the rotating shaft 132, thereby preventing the rotating shaft 132 from being subjected to bending moments and causing deformation and other damage, effectively improving the movement accuracy of the sliders 12 and extending the service life of the container cover 1. It is understood that in other embodiments, the sliding direction of the sliders 12 can also form an angle with the axis of the rotating shaft 132.

[0066] Furthermore, a handle 133 is fixed to one side of the rotating shaft 132, and the user applies external force to the handle 133 to realize the rotation of the rotating shaft 132; the handle 133 protrudes from the outer surface of the rotating shaft 132 along the radial direction of the rotating shaft 132 to increase the lever arm and realize labor-saving operation; the handle 133 is set to a bow shape or other shape that is easy for the user to hold, so as to increase the comfort of the user holding the handle 133.

[0067] Furthermore, when the handle 133 is perpendicular to the lid 11, the slider 12 approaches the centerline of the lid 11, and the hook 122 is engaged. That is, when the handle 133 is in use, the hook 122 is engaged, and the user can lift the container lid 1 and the container body 2 simultaneously via the handle 133. When the handle 133 is parallel to the lid 11, the slider 12 moves away from the centerline of the lid 11, and the hook 122 is disengaged. That is, when the handle 133 is in the retracted state, the hook 122 is disengaged, and the container lid 1 and the container body 2 can be separated from each other, enabling food to be taken in and out. On the one hand, the handle 133 has a use state and a storage state as the rotating shaft 132 rotates, which can meet the portability requirements of the thermal insulation container and reduce the storage volume of the thermal insulation container; on the other hand, the state of the hook 122 is controlled by the state of the handle 133, and there is no need to set a special operation switch for the hook 122, which can reduce the number of parts, improve the convenience of operation, and prevent the user from lifting the thermal insulation container when the container cover 1 is not tightly closed, thereby improving the safety of use.

[0068] Furthermore, within the movement range of the handle 133, at least one mutually cooperating locking structure such as a latching protrusion can be provided between the cover body 11 and the handle 133 to fix the handle 133 in the target position (for example, to fix the handle 133 in the use state) to prevent the handle 133 from flipping over due to its own gravity or external force collision during use, causing the state of the hook 122 to change.

[0069] Furthermore, the first transmission part 121 and the second transmission part 131 abut against each other along the axial direction of the rotating shaft 132. The surface where the second transmission part 131 and the first transmission part 121 abut against each other is a spiral surface 14. The spiral surface 14 converts the rotational motion of the rotating shaft 132 into linear motion of the slider 12, pushing the slider 12 in a direction away from the center line of the cover body 11, thereby releasing the latches 122 and realizing the lid opening operation. On the one hand, the first transmission part 121 and the second transmission part 131 only abut against each other at the end faces, so that there is no overlapping area between the two along the axial direction of the rotating shaft 132, thereby improving the effective utilization rate of materials. On the other hand, the end faces of the second transmission part 131 and the first transmission part 121 are both spiral surfaces 14, so that the first transmission part 121 and the second transmission part 131 form surface contact when they abut against each other, increasing the stability and reliability of the mutual cooperation between the two. It is understandable that in other embodiments, only one of the first transmission part 121 and the second transmission part 131 may be configured as the helical surface 14 and the other may be configured as a protrusion abutting against the helical surface 14 .

[0070] Specifically, the helical surface 14 extends in a spiral shape around the axis of the rotating shaft 132, and the circumferential extension angle of the helical surface 14 is no more than 360°, so as to ensure that the first transmission part 121 and the second transmission part 131 can form an end-face abutment. The point of the helical surface 14 farthest from the rotating shaft 132 is the highest point, and the point of the helical surface 14 closest to the rotating shaft 132 is the lowest point. When the rotating shaft 132 rotates along the highest point toward the lowest point of the helical surface 14, the second transmission part 131 pushes the first transmission part 121, and the slider 12 moves in a direction away from the center line of the cover body 11. When the rotating shaft 132 rotates along the lowest point toward the highest point of the helical surface 14, the second transmission part 131 releases its push on the first transmission part 121, and the slider 12 can move in a direction close to the center line of the cover body 11 under the action of external forces, etc.

[0071] In one embodiment, reference Figure 7The spiral surface 14 includes a first spiral surface 141 and a second spiral surface 142 that are arranged symmetrically with each other. During the rotation of the rotating shaft 132, the first spiral surface 141 of the first transmission part 121 and the second transmission part 131 always remain in contact, and the second spiral surface 142 of the first transmission part 121 and the second transmission part 131 always remain in contact, so as to increase the matching area between the first transmission part 121 and the second transmission part 131, thereby increasing the stability of the rotation of the rotating shaft 132. A stop step 143 is formed between the first helical surface 141 and the second helical surface 142, that is, the lowest point of one helical surface 14 is exactly the highest point of the other helical surface 14, thus forming the stop step 143; when the hook 122 is locked, the stop steps 143 of the first transmission part 121 and the second transmission part 131 abut against each other, so that the rotating shaft 132 can only rotate in one direction to release the hook 122, thereby accurately defining the rotation end point of the rotating shaft 132, and ensuring that the hook 122 can accurately stay in the locked state.

[0072] In another embodiment, reference Figure 8 The spiral surface 14 includes a first spiral surface 141 and a second spiral surface 142 that are arranged in mirror symmetry with each other. When the hook 122 is locked, the first spiral surface 141 of the first transmission part 121 and the second transmission part 131 abut against each other, and the second spiral surface 142 of the first transmission part 121 and the second transmission part 131 abut against each other, so that the hook 122 can be smoothly released regardless of the forward or reverse rotation of the rotating shaft 132, thereby improving the convenience of the cover opening operation. Specifically, when the rotating shaft 132 rotates forward at the position where the hook 122 realizes the latching, the first helical surfaces 141 of the first transmission part 121 and the second transmission part 131 abut against each other to push the slider 12, and the second helical surfaces 142 of the first transmission part 121 and the second transmission part 131 separate from each other to achieve avoidance; when the rotating shaft 132 rotates backward at the position where the hook 122 realizes the latching, the second helical surfaces 142 of the first transmission part 121 and the second transmission part 131 abut against each other to push the slider 12, and the first helical surfaces 141 of the first transmission part 121 and the second transmission part 131 separate from each other to achieve avoidance.

[0073] Furthermore, an elastic member 16 (for example, a spring, etc.) is provided between the slider 12 and the cover body 11 to enable the slider 12 to slide toward the center line of the cover body 11. That is, when the second transmission part 131 releases the push on the first transmission part 121, the slider 12 automatically moves toward the center line of the cover body 11 under the action of the elastic member 16, so that the hook 122 can automatically achieve the snap-fit, ensuring that the container cover 1 and the container body 2 are reliably connected.

[0074] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A container lid, characterized in that: include: A cover (11) is used to cover the container body; At least two sliders (12) are slidably connected to the cover body (11); a hook (122) is provided below the slider (12); the opening direction of the hook (122) faces the center line of the cover body (11); and the slider (12) is provided with a first transmission part (121); A driving member (13) is connected to the cover body (11), and the driving member (13) is provided with a second transmission part (131) corresponding to each slider (12), and the second transmission part (131) cooperates with the first transmission part (121) to drive each slider (12) to synchronously approach or move away from the center line of the cover body (11), so that the hook (122) can be locked or released with the container body.

2. The container cover according to claim 1, wherein: The driving member (13) includes a rotating shaft (132), and the rotating shaft (132) is arranged parallel to the cover body (11); The container cover comprises two sliders (12), which are symmetrically arranged at both ends of the rotating shaft (132), and the sliding direction of the sliders (12) is parallel to the axis of the rotating shaft (132).

3. The container according to claim 2, characterized in that The first transmission part (121) and the second transmission part (131) abut against each other along the axial direction of the rotating shaft (132), and the surface where the second transmission part (131) and the first transmission part (121) abut against each other is a spiral surface (14).

4. The container according to claim 3, characterized in that The helical surface (14) comprises a first helical surface (141) and a second helical surface (142) that are centrally symmetrical to each other, and a stop step (143) is formed between the first helical surface (141) and the second helical surface (142); When the hook (122) is locked, the first transmission part (121) and the stop step (143) of the second transmission part (131) abut against each other.

5. The container according to claim 3, characterized in that The helical surface (14) comprises a first helical surface (141) and a second helical surface (142) that are mirror-symmetrical to each other; When the hook (122) is locked, the first helical surface (141) of the first transmission part (121) and the second transmission part (131) abut against each other, and the second helical surface (142) of the first transmission part (121) and the second transmission part (131) abut against each other.

6. The container according to claim 3, characterized in that An elastic member (16) is provided between the slider (12) and the cover body (11) to enable the slider (12) to slide in a direction close to the center line of the cover body (11).

7. The container cap according to claim 2, wherein: A handle (133) is fixed on one side of the rotating shaft (132), and the handle (133) protrudes from the outer surface of the rotating shaft (132) along the radial direction of the rotating shaft (132); When the handle (133) is perpendicular to the cover body (11), the slider (12) is close to the center line of the cover body (11), and the hook (122) is buckled; When the handle (133) is parallel to the cover body (11), the slider (12) moves away from the center line of the cover body (11), and the hook (122) cancels the buckle.

8. The container cover according to any one of claims 1 to 7, characterized in that: The edge of the cover body (11) is provided with a downwardly extending flange (111), and the flange (111) is provided with a notch (112); The hook (122) comprises an extension section (122a) and a protrusion (122b), the extension section (122a) complements the notch (112), and the protrusion (122b) is arranged on the inner side of the extension section (122a).

9. The container cover according to any one of claims 1 to 7, characterized in that: The cover body (11) comprises a bottom shell (11a) and an upper cover (11b) connected to each other, and the slider (12) and the driving member (13) are sandwiched between the bottom shell (11a) and the upper cover (11b); A groove (113) is provided in the center of the upper cover (11b), the bottom of the groove (113) abuts against the bottom of the bottom shell (11a), and a portion of the driving member (13) passes through the bottom of the groove (113) and is exposed outside the cover body (11).

10. A heat-insulating container, characterized in that: It comprises a container body and a container cover according to any one of claims 1 to 9, wherein a card slot is provided on the outer periphery of the container body; When the container cover is closed on the mouth of the container body, the hook (122) is locked in the slot.

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