Sealing cover convenient to use and preservation box

Abstract

The utility model discloses a sealing cover convenient to use and a preservation box, and the sealing cover convenient to use comprises a panel, a sealing cover and a sealing cover, the cover ring is arranged around the panel and connected with the panel in a sealed mode, the cover ring is an elastic part, and exhaust holes are formed in the cover ring; one end of the rotating block is integrally connected with the cover ring, the other end of the rotating block is rotationally matched with the cover ring, the rotating block is an elastic part, the rotating block is provided with a blocking protrusion integrally connected with the rotating block, and the blocking protrusion corresponds to the exhaust hole; the rotating block is suitable for rotating along the side deviating from the center of the panel so as to drive the blocking protrusion to block the exhaust hole. The rotating block is suitable for rotating along the side facing the center of the panel so as to drive the blocking protrusion to be separated from the exhaust hole. The plugging bulge and the exhaust hole can generate elastic deformation, so that the sealing effect is better after plugging; and moreover, the position and the rotating use direction of the rotating block are optimized to adapt to the use of the sealing cover, so that the convenience of user operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealed containers, in particular to a sealing cover which is convenient to use, and a fresh-keeping box with the sealing cover which is convenient to use. Background Art

[0002] Currently, more and more sealing covers are provided with structures for destroying vacuum, which have the function of conveniently opening the sealed sealing covers.

[0003] In some related technologies, the sealing cover is provided with a sealing ring matching the sealed container, and an exhaust hole is opened on the side wall of the sealing ring. The exhaust hole can assist the opening operation of the sealing cover so that it can be opened smoothly. However, an exhaust groove needs to be provided on the outer wall of the sealing ring so that the exhaust hole provided on the wall of the exhaust groove can function smoothly. However, the provision of the exhaust groove and the exhaust hole may cause water seepage when the sealed container is stored and used, and the sealing effect is not ideal.

[0004] In some related technologies, the sealing cover includes a glass plate and a sealing ring arranged around the glass plate. The glass plate is provided with a through hole for the plug to be inserted to seal the sealing cover after the cover is closed. However, there are problems such as inconvenient opening of the glass plate and the loss of the plug. For example, conventional through-hole processing of the glass plate requires drilling holes at both ends. The processed through-hole will have a step in the middle, which does not work well with the plug. Although a laser cutting machine can be used to process a through-hole in a single operation, the purchase cost of the laser cutting machine is relatively high. In addition, the edge of the hole opened in the glass is relatively sharp, and there is a situation where the plug is cut off when the operation is not careful, causing the plug to lose its function.

[0005] In some related technologies, the sealing cover is provided with a rigid toggle structure, and the sealing cover is pushed open after being toggled. However, during use, a large vacuum pressure needs to be overcome to open the sealing cover, and the operation effect is poor.

[0006] In some related technologies, a sealing plug is provided on the surface of the cover body of the sealing cover, and the user realizes the sealing function of the sealing cover by operating the sealing plug to rotate, wherein the sealing plug is arranged to rotate inwards for sealing and rotate outwards for opening. In conventional sealing cover closing applications, the user needs to close and compact the cover body before operating the sealing plug. However, for this structure, the user's fingers are located on the inner side of the cover body after closing the cover body. When operating the sealing plug, the user needs to move the hand to the outer side of the cover body and then rotate the sealing plug toward the inner side of the cover body, which means there are two opposite actions. Similarly, in conventional sealing cover opening applications, the user needs to open the sealing plug and then operate the cover body. However, for this structure, when the user operates the sealing plug, the user moves to the outer side of the cover body to destroy the vacuum structure, and then moves to the inner side of the cover body to lift the cover body upwards. There are also two opposite actions.

[0007] In summary, the existing sealing caps have the problems of poor sealing performance or inconvenient operation and use, and it is urgent to provide a sealing cap that is easy to operate and has good sealing performance. Utility Model Content

[0008] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a sealing cover that is easy to use. The sealing cover that is easy to use has a simple structure, good sealing performance, and is easy for users to operate and use.

[0009] The utility model also provides a fresh-keeping box with the sealing cover which is convenient to use.

[0010] The sealing cover convenient for use according to the utility model comprises:

[0011] panel;

[0012] A cover ring, which is arranged around the panel and is sealed and connected to the panel, wherein the cover ring is an elastic member and is provided with an exhaust hole;

[0013] A rotating block, one end of which is integrally connected to the cover ring, and the other end of which is rotatably matched with the cover ring, the rotating block is an elastic component, and the rotating block is provided with a blocking protrusion integrally connected to the rotating block, and the blocking protrusion is arranged corresponding to the exhaust hole;

[0014] The rotating block is suitable for rotating along a side away from the center of the panel to drive the blocking protrusion to block the exhaust hole; the rotating block is suitable for rotating along a side toward the center of the panel to drive the blocking protrusion to separate from the exhaust hole.

[0015] The easy-to-use sealing cover according to the utility model has at least the following beneficial effects: the sealing protrusion and the exhaust hole can both undergo elastic deformation, and the sealing effect is better after sealing; and, the user generally places his hand on one side of the center of the panel during the closing operation, and after pressing the sealing cover to close, the hand moves away from the center of the panel. At this time, the hand can maintain the same movement direction to operate the rotating block to seal the exhaust hole, thereby realizing the sealing function of the closing operation; similarly, when the user opens the cover, the hand moves on the outside of the sealing cover toward the center of the panel and lifts the sealing cover upward. At this time, the hand operates the rotating block to move toward one side of the center of the panel, and after opening the exhaust hole to destroy the vacuum sealing state, the sealing cover can be opened or lifted up while maintaining the same movement direction; by optimizing the position of the rotating block and the rotation direction of use, the user's operation is more convenient.

[0016] According to the easy-to-use sealing cover of the utility model, the exhaust hole is arranged on the end surface of the cover ring and penetrates the cover ring, and the rotating block is connected to the upper wall of the cover ring.

[0017] According to the easy-to-use sealing cover of the utility model, the cover ring is in a square ring shape, and the exhaust hole and the rotating block are both located at the corners of the cover ring.

[0018] According to the easy-to-use sealing cover of the utility model, the end surface of the cover ring is provided with a receiving groove, and along the thickness direction of the panel, the projection area of ​​the rotating block is located within the projection area of ​​the receiving groove.

[0019] According to the convenient-to-use sealing cover of the utility model, the depth of the accommodating groove matches the thickness of the rotating block, and the shape of the accommodating groove matches the outer shape of the rotating block.

[0020] According to the easy-to-use sealing cover of the utility model, an operating portion is provided at the end of the rotating block, and the operating portion is convexly arranged to open the exhaust hole.

[0021] According to the easy-to-use sealing cover of the utility model, the rotating block has a marking structure, and the marking structure is set by color or symbol to mark the operation and use of the rotating block.

[0022] According to the easy-to-use sealing cover described in the utility model, the bottom wall of the sealing protrusion is provided with a demoulding countersunk hole, and the bottom end of the sealing protrusion is provided with an anti-slip protrusion. The outer diameter of the anti-slip protrusion is larger than the aperture of the exhaust hole to seal the lower end of the exhaust hole, and the anti-slip protrusion is suitable for deforming toward one side of the center of the demoulding countersunk hole to detach from the exhaust hole from the upper end of the exhaust hole.

[0023] According to the easy-to-use sealing cover of the utility model, the rotation range of the rotating block is A, which satisfies: 28°≤A≤45°.

[0024] The fresh-keeping box according to the utility model comprises the sealing cover which is easy to use according to the utility model.

[0025] According to the fresh-keeping box described in the utility model, at least the following beneficial effects are achieved: when the user generally closes the sealing cover, the hand is located on one side of the center of the panel. After the sealing cover is pressed and closed, the hand moves away from the center of the panel. At this time, the hand can maintain the same movement direction to operate the rotating block, so that the blocking protrusion blocks the exhaust hole, and the sealing function of the closing is realized. In addition, the blocking protrusion and the exhaust hole can both undergo elastic deformation, and the sealing effect is better after blocking. Similarly, when the user opens the sealing cover, the hand moves on the outside of the sealing cover toward the center of the panel and lifts the sealing cover upward. At this time, the hand operates the rotating block to move toward one side of the center of the panel, and after opening the exhaust hole to destroy the vacuum sealing state, the sealing cover can be opened or lifted in the same movement direction; by optimizing the position of the rotating block and the rotation direction of use, the user's operation is more convenient.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 This is a schematic diagram of the overall structure of a sealing cover that is easy to use according to an embodiment of the utility model;

[0029] Figure 2 A schematic diagram of the cross-sectional structure of a sealing cover that is convenient for use in an embodiment of the utility model;

[0030] Figure 3 A schematic diagram of the assembled structure of the sealing cover for easy use in the embodiment of the utility model;

[0031] Figure 4 This is a schematic diagram of a fresh-keeping box in a sealed use state according to an embodiment of the utility model;

[0032] Figure 5 It is a schematic diagram of the fresh-keeping box of the embodiment of the utility model in the on and off state.

[0033] Description of Figure Numbers:

[0034] Panel 100;

[0035] Cover ring 200; exhaust hole 201; receiving groove 202; annular portion 210; additional portion 220; sealing ring 230; arc-shaped sealing portion 231; spherical sealing portion 232;

[0036] Rotating block 300; blocking protrusion 310; demoulding countersunk hole 3101; anti-slip protrusion 311; operating part 320; symbol mark 330;

[0037] Box body 400. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0041] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0042] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] Currently, more and more sealing covers are provided with structures for destroying vacuum, which have the function of conveniently opening the sealed sealing covers.

[0044] In some related technologies, the sealing cover is provided with a sealing ring matching the sealed container, and an exhaust hole is opened on the side wall of the sealing ring. The exhaust hole can assist the opening operation of the sealing cover so that it can be opened smoothly. However, an exhaust groove needs to be provided on the outer wall of the sealing ring so that the exhaust hole provided on the wall of the exhaust groove can function smoothly. However, the provision of the exhaust groove and the exhaust hole may cause water seepage when the sealed container is stored and used, and the sealing effect is not ideal.

[0045] In some related technologies, the sealing cover includes a glass plate and a sealing ring arranged around the glass plate. The glass plate is provided with a through hole for the plug to be inserted to seal the sealing cover after the cover is closed. However, there are problems such as inconvenient opening of the glass plate and the loss of the plug. For example, conventional through-hole processing of the glass plate requires drilling holes at both ends. The processed through-hole will have a step in the middle, which does not work well with the plug. Although a laser cutting machine can be used to process a through-hole in a single operation, the purchase cost of the laser cutting machine is relatively high. In addition, the edge of the hole opened in the glass is relatively sharp, and there is a situation where the plug is cut off when the operation is not careful, causing the plug to lose its function.

[0046] In some related technologies, the sealing cover is provided with a rigid toggle structure, and the sealing cover is pushed open after being toggled. However, during use, a large vacuum pressure needs to be overcome to open the sealing cover, and the operation effect is poor.

[0047] In some related technologies, a sealing plug is provided on the surface of the cover body of the sealing cover, and the user realizes the sealing function of the sealing cover by operating the sealing plug to rotate, wherein the sealing plug is arranged to rotate inwards for sealing and rotate outwards for opening. In conventional sealing cover closing applications, the user needs to close and compact the cover body before operating the sealing plug. However, for this structure, the user's fingers are located on the inner side of the cover body after closing the cover body. When operating the sealing plug, the user needs to move the hand to the outer side of the cover body and then rotate the sealing plug toward the inner side of the cover body, which means there are two opposite actions. Similarly, in conventional sealing cover opening applications, the user needs to open the sealing plug and then operate the cover body. However, for this structure, when the user operates the sealing plug, the user moves to the outer side of the cover body to destroy the vacuum structure, and then moves to the inner side of the cover body to lift the cover body upwards. There are also two opposite actions.

[0048] In summary, the existing sealing caps have the problems of poor sealing performance or inconvenient operation and use, and it is urgent to provide a sealing cap that is easy to operate and has good sealing performance.

[0049] For this reason, Figures 1 to 3As shown, the sealing cover provided by the utility model is easy to use, including a panel 100, a cover ring 200 and a rotating block 300, wherein the cover ring 200 is arranged around the panel 100 and is sealed and connected to the panel 100, for example, the panel and the cover ring are both integrally injection-molded plastic parts (not shown in the figure); for another example, the panel and the cover ring are both integrally injection-molded silicone parts (not shown in the figure); for another example, the panel 100 is a stainless steel part or a glass part, the cover ring 200 is a silicone part, the cover ring 200 is injection-molded on the periphery of the panel 100 and seals and wraps the periphery of the panel 100. In addition, one end of the rotating block 300 is integrally connected to the cover ring 200, and the other end is rotatably matched with the cover ring 200. For example, the cover ring 200 and the rotating block 300 are both elastic. Optionally, the cover ring 200 and the rotating block 300 are both silicone parts. In some manufacturing processes, the cover ring 200 and the rotating block 300 are integrally injection-molded. In some manufacturing processes, refer to Figure 3 The cover ring 200 includes an annular portion 210 and an additional portion 220. The annular portion 210 is mainly used to connect with the panel 100. During the manufacturing of the parts, the additional portion 220 and the rotating block 300 are manufactured separately. During the connection process, a mold is used to press the additional portion 220 and the rotating block 300, and then the annular portion 210 is injection molded. While the annular portion 210 is being molded, it is fused with the same side wall of the additional portion 220 and the rotating block 300, respectively, to achieve an integral connection between the annular portion 210, the additional portion 220 and the rotating block 300. In addition, referring to Figure 1 and Figure 2 , the cover ring 200 is provided with an exhaust hole 201, and the rotating block 300 is provided with a blocking protrusion 310 integrally connected with the rotating block 300, and the blocking protrusion 310 is arranged corresponding to the exhaust hole 201. In a specific application, the rotating block 300 is suitable for rotating along the side away from the center of the panel 100 to drive the blocking protrusion 310 to block the exhaust hole 201; the rotating block 300 is suitable for rotating along the side toward the center of the panel 100 to drive the blocking protrusion 310 to separate from the exhaust hole 201. It should be noted that both the blocking protrusion 310 and the exhaust hole 201 can undergo elastic deformation, and the sealing effect is better after blocking. In addition, the user's hand is generally located on one side of the center of the panel 100 during the covering operation. After pressing the sealing cover to cover, the hand moves away from the side away from the center of the panel 100. At this time, the hand can maintain the same movement direction to operate the rotating block 300 to block the exhaust hole 201, thereby realizing the sealing function of the covering use. Similarly, when the user opens the cover, the user moves the hand from the outside of the sealing cover toward the center of the panel 100 and lifts the sealing cover upward. At this time, the hand operates the rotating block 300 to move toward one side of the center of the panel 100, opens the exhaust hole 201 to break the vacuum seal, and then maintains the same movement direction to open or lift the sealing cover. By optimizing the position and rotation direction of the rotating block 300, the user's operation is more convenient.

[0050] In some embodiments, the exhaust hole is located on the side wall of the cover ring, the rotating block and the exhaust hole are located on the same side of the cover ring, and are correspondingly arranged on the end wall or side wall of the cover ring (not shown in the figure). However, this structure requires the cover ring to be thicker, and the rotating block after blocking the exhaust hole at least partially fits the outer wall of the cover ring, which is not beautiful as a whole, and the user is prone to misoperation of the rotating block when operating on the outer edge of the cover ring. In some embodiments of the utility model, such as Figure 1 and Figure 2 As shown, the exhaust hole 201 is arranged on the end face of the cover ring 200 and penetrates the cover ring 200, and the rotating block 300 is connected to the upper wall of the cover ring 200. The structure is simple, and the exhaust hole 201 is easy to process and manufacture. In addition, the rotating block 300 is located in the plane of the cover ring 200, and will not protrude from the outer edge of the cover ring 200 during operation, and the overall aesthetics is good. In addition, the rotating block 300 is biased to be connected to one side of the center of the sealing cover, and the connection of the rotating block 300 is more secure. Visually evaluating the stability of the connection of the rotating block 300 is good, which brings a better psychological use experience to the user. Furthermore, the end face of the cover ring 200 is provided with a receiving groove 202, and along the thickness direction of the panel 100, the projection area of ​​the rotating block 300 is located within the projection area of ​​the receiving groove 202. Furthermore, when the blocking protrusion 310 blocks the exhaust hole 201, the rotating block 300 can be placed in the receiving groove 202, at least partially filling the receiving groove 202, so that the end face of the cover ring 200 becomes relatively flat, improving the overall storage performance, for example, facilitating other objects to be stably stacked on the end face of the sealing cover. In some embodiments of the utility model, a contour design is adopted between the receiving groove 202 and the rotating block 300. Specifically, the depth of the receiving groove 202 matches the thickness of the rotating block 300, and the shape of the receiving groove 202 matches the shape of the rotating block 300. Thus, the rotating block 300 can be just filled in the receiving groove 202, and the overall aesthetics are better. In addition, the receiving groove 202 has no large gap, which can avoid dust accumulation during long-term use after sealing, and improve the cleanability to a certain extent. It should be noted that the depth of the receiving groove 202 matches the thickness of the rotating block 300, which does not specifically mean that the depth of the receiving groove 202 is equal to the thickness of the rotating block 300. Since the rotating block 300 with elasticity can be deformed and it is difficult to accurately determine the size during manufacturing, it can be considered that the depth of the receiving groove 202 is close to the thickness of the rotating block 300. For example, the depth of the receiving groove 202 differs from the thickness of the rotating block 300 by 0 to 10 mm. It is easy to understand that the exhaust hole 201 is provided on the end face of the receiving groove 202, and the blocking protrusion 310 is provided on the lower wall of the rotating block 300. After the blocking protrusion 310 blocks the exhaust hole 201, the user cannot observe the blocking protrusion 310 from the outside, and the aesthetics of use is better.

[0051] In some embodiments, the sealing ring is in the shape of a disk (not shown in the figure). In some embodiments of the present invention, the sealing ring 230 is in the shape of a square disk. Figure 1As shown, the cover ring 200 is in a square ring shape, and the exhaust hole 201 and the rotating block 300 are both located at the corners of the cover ring 200. The structure is simple, which reduces the manufacturing difficulty of connecting with the panel 100 and reduces the interference with the panel 100. For example, when the panel 100 is a glass plate, the rotating block 300 located at the corner will not block the user's line of sight through the panel 100. It is easy to understand that according to different modeling requirements, in some manufacturing applications, the rotating block is located in the middle of one side of the cover ring (not shown in the figure), or the additional part of the cover ring extends toward the center of the panel, and correspondingly, the rotating block is set at a position biased towards the center of the panel (not shown in the figure).

[0052] Refer to Figure 1 , Figure 4 and Figure 5 In some embodiments of the utility model, an operating portion 320 is provided at the end of the rotating block 300, and the operating portion 320 is provided in a raised manner to open the exhaust hole 201. This further facilitates the user's operation of the rotating block 300. In an application, even if the rotating block 300 sinks into the receiving groove 202, the user can easily open it through the rotating block 300. It should be noted that the operating portion 320 can facilitate the lifting of the rotating block 300 to open the exhaust hole 201. However, in some applications, after the user covers the box body 400 with the sealing cover, when the hand moves along the side away from the center of the sealing cover, the finger presses the end face of the rotating block 300 to drive the blocking protrusion 310 to block the exhaust hole 201, which is more convenient to operate. Therefore, there is no need to deliberately operate the rotating block 300 through the operating portion 320.

[0053] In addition, the rotating block 300 has a marking structure, which is set by color or symbol to indicate the operation and use of the rotating block 300, and can prompt users who use it for the first time to indicate the operation method or operation position. For example, the color of the rotating block 300 is different from the color of the cover ring 200, marking the user's operation position. For example, the rotating block 300 uses brighter colors such as orange, red or yellow, and the cover ring 200 uses gray, white and other colors. In some applications, different colors can be manufactured together through a two-color injection molding process, or different colors can be manufactured separately using raw materials of different colors. There are many specific methods, which are not limited here. In some embodiments of the utility model, the rotating block 300 is marked in the form of symbols. For example, refer to Figure 1 , Figure 4 and Figure 5 A symbol mark 330 is provided on the end surface of the rotating block 300. Optionally, the symbol mark 330 is in the form of an arrow to indicate the operation direction of the user.

[0054] In some embodiments, the exhaust hole 201 is a cylindrical hole, the blocking protrusion 310 is cylindrical, and the blocking protrusion 310 presses against the peripheral wall of the exhaust hole 201 to seal. In some embodiments of the utility model, in addition to pressing against the peripheral wall of the exhaust hole 201 to seal, the blocking protrusion 310 also presses against the lower end of the exhaust hole 201 to have sealing and anti-slip functions. Specifically, as Figure 2 As shown, the bottom end of the blocking protrusion 310 is provided with an anti-slip protrusion 311, and the outer diameter of the anti-slip protrusion 311 is larger than the aperture of the exhaust hole 201 to block the lower end of the exhaust hole 201. It is easy to understand that the anti-slip protrusion 311 can press against the lower peripheral edge of the exhaust hole 201 to further improve the blocking effect. In addition, the anti-slip protrusion 311 improves the anti-slip property of the blocking protrusion 310, and reduces the detachment of the anti-slip protrusion 311 caused by misoperation. For example, when the fresh-keeping box is placed in the kitchen for use, it is not easy for mice to touch the rotating block 300 and open the exhaust hole 201. Further, the bottom wall of the blocking protrusion 310 is provided with a demoulding countersunk hole 3101. In application, the anti-slip protrusion 311 is suitable for deforming toward one side of the center of the demoulding countersunk hole 3101 to detach from the exhaust hole 201 from the upper end of the exhaust hole 201. In manufacturing, the provision of the demoulding countersunk hole 3101 facilitates the demoulding of the blocking protrusion 310 from the injection mold. It should be noted that the accommodating space of the demoulding countersunk hole 3101 needs to be greater than or equal to the inward deformation of the anti-slip protrusion 311 to be less than the deformation of the exhaust hole 201. In some designs, the depth of the demoulding countersunk hole 3101 is greater than the thickness of the anti-slip protrusion 311.

[0055] like Figure 1 , Figure 2 , Figure 4 and Figure 5 In some embodiments of the present invention, the rotation range of the rotating block 300 is A, which satisfies: 28°≤A≤45°. It should be noted that, since the rotating block 300 is elastic, the user can rotate it to the other side without considering the actual application or considering the playability, that is, the range is close to 180°. Figure 4 and Figure 5, the rotation range A refers to the angle range that the rotating block 300 needs to rotate when the fresh-keeping box is switched between the sealed use state and the conductive open state. In a specific application, when the fresh-keeping box is in the sealed use state, the rotating block 300 abuts against the end wall of the receiving groove 202. When the fresh-keeping box is in the conductive open state, the rotating block 300 is in a naturally tilted state after the user opens it. In this regard, A represents the angle between the lower wall of the rotating block 300 and the end wall of the receiving groove 202 when the rotating block 300 is in a naturally tilted state. Optionally, A = 30°. By reasonably designing the rotation angle of the rotating block 300, the blocking protrusion 310 can not only be separated from the exhaust hole 201 after the rotating block 300 rotates, but also be convenient for re-blocking the exhaust hole 201 with a relatively small rotation amplitude. It is easy to understand that, on the one hand, the rotation range of the rotating block 300 is small, and the positioning between the blocking protrusion 310 and the exhaust hole 201 is more accurate; on the other hand, the function of the rotating block 300 can be realized by rotating in a small range, and the user operation is simpler and faster.

[0056] In addition, the sealing cover needs to cooperate with the box body for sealing. The existing sealing cover has an elastic ring part at the bottom of the sealing cover, and the elastic ring part is pressed against the inner wall of the box body for sealing. However, the existing elastic ring part has a stepped structure, such as an "I" shape or an inverted "T" shape (not shown in the figure), and the pressing effect with the inner wall of the box body is unstable. Due to the closing force and the wrinkles of the elastic ring part, the elastic ring part will produce various deformation effects due to the pressing, thereby affecting the sealing performance. Figure 2 and Figure 3 In some embodiments of the utility model, a sealing ring 230 is provided on the lower wall of the cover ring 200, the upper end of the sealing ring 230 is integrally connected with the cover ring 200, and the other end is extended downward. Among them, the lower end of the sealing ring 230 is provided with an arc-shaped sealing portion 231 extending outward and bending upward, forming a "J"-shaped structure, and the upper end of the arc-shaped sealing portion 231 is provided with a spherical sealing portion 232, and the arc-shaped sealing portion 231 and the spherical sealing portion 232 are matched to press and seal the inner wall of the sealed container. In application, the arc-shaped sealing portion 231 has good deformation performance and can be directly pressed and sealed with the inner circumferential wall of the box body 400. Further, the spherical sealing portion 232 located at the end always maintains a closed loop line with the inner wall of the box body 400, and will not be disconnected at a certain section of the loop line to weaken the sealing effect. Furthermore, the sealing ring 230 can ensure the sealing performance of the sealing cover with the box body 400 after the sealing cover is closed, and the sealing effect is more stable.

[0057] Refer to Figure 4 and Figure 5According to the embodiment of the utility model, the fresh-keeping box includes the easy-to-use sealing cover according to the embodiment of the utility model. According to the fresh-keeping box of the embodiment of the utility model, by adopting the easy-to-use sealing cover of the embodiment of the utility model, when the user generally closes the sealing cover, the hand is located on one side of the center of the panel 100. After pressing the sealing cover to close, the hand moves away from the center of the panel 100. At this time, the hand can maintain the same movement direction to operate the rotating block 300, so that the blocking protrusion 310 blocks the exhaust hole 201, and the sealing function of the cover is realized. In addition, the blocking protrusion 310 and the exhaust hole 201 can both be elastically deformed, and the sealing effect is better after blocking. Similarly, when the user opens the sealing cover, the hand moves toward the center of the panel 100 on the outside of the sealing cover and lifts the sealing cover upward. At this time, the hand operates the rotating block 300 to move toward one side of the center of the panel 100. After opening the exhaust hole 201 to break the vacuum sealing state, the sealing cover can be opened or lifted in the same movement direction; by optimizing the position and rotation direction of the rotating block 300, the user's operation is more convenient.

[0058] Other structures and operations of the fresh-keeping box according to the embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0059] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A sealing cover that is easy to use, characterized in that: include: panel; A cover ring, which is arranged around the panel and is sealed and connected to the panel, wherein the cover ring is an elastic member and is provided with an exhaust hole; A rotating block, one end of which is integrally connected to the cover ring, and the other end of which is rotatably matched with the cover ring, the rotating block is an elastic component, and the rotating block is provided with a blocking protrusion integrally connected to the rotating block, and the blocking protrusion is arranged corresponding to the exhaust hole; The rotating block is suitable for rotating along a side away from the center of the panel to drive the blocking protrusion to block the exhaust hole; the rotating block is suitable for rotating along a side toward the center of the panel to drive the blocking protrusion to separate from the exhaust hole.

2. The easy-to-use sealing cover according to claim 1, characterized in that: The exhaust hole is arranged on the end surface of the cover ring and penetrates the cover ring, and the rotating block is connected to the upper wall of the cover ring.

3. The easy-to-use sealing cover according to claim 2, characterized in that: The cover ring is in a square ring shape, and the exhaust hole and the rotating block are both located at the corners of the cover ring.

4. The easy-to-use sealing cover according to any one of claims 1 to 3, characterized in that: An end surface of the cover ring is provided with an accommodation groove, and along the thickness direction of the panel, the projection area of ​​the rotating block is located within the projection area of ​​the accommodation groove.

5. The easy-to-use sealing cover according to claim 4, characterized in that: The depth of the accommodating groove matches the thickness of the rotating block, and the shape of the accommodating groove matches the outer shape of the rotating block.

6. The easy-to-use sealing cover according to claim 1, 2, 3 or 5, characterized in that: An operating portion is provided at the end of the rotating block, and the operating portion is convexly arranged to open the exhaust hole.

7. The easy-to-use sealing cover according to claim 1, characterized in that: The rotating block has a marking structure, and the marking structure is set by color or symbol to mark the operation use of the rotating block.

8. The easy-to-use sealing cover according to claim 1, characterized in that: The bottom wall of the sealing protrusion is provided with a demoulding countersunk hole, and the bottom end of the sealing protrusion is provided with an anti-slip protrusion. The outer diameter of the anti-slip protrusion is larger than the aperture of the exhaust hole so as to seal the lower end of the exhaust hole. The anti-slip protrusion is suitable for deforming toward one side of the center of the demoulding countersunk hole so as to detach from the exhaust hole from the upper end of the exhaust hole.

9. The easy-to-use sealing cover according to claim 1, characterized in that: The rotation range of the rotating block is A, which satisfies: 28°≤A≤45°.

10. Fresh-keeping box, characterized by: The invention comprises a sealing cover which is easy to use as claimed in any one of claims 1 to 9.

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