Box cover with exhaust structure and packaging box

Abstract

The utility model discloses a box cover with an exhaust structure. The box cover comprises a cover main body, a flexible connecting part and a sealing plug, an exhaust hole is formed in the cover main body; one end of the flexible connecting part is connected with the cover main body; the sealing plug is connected with the other end of the flexible connecting part, the sealing plug is arranged on the cover body in a turnover mode through the flexible connecting part and can be turned over to open or close the exhaust hole, and the cover body, the flexible connecting part and the sealing plug are of an integrally-formed structure. The sealing plug can be turned over relative to the cover body through the flexible connecting part, so that the sealing plug can be turned over to open or close the exhaust hole, the normal use requirement is met, the cover body, the flexible connecting part and the sealing plug are of an integrally-formed structure, and the box cover with the exhaust structure can be completely machined through one-time forming machining. The cover main body and the sealing plug do not need to be respectively produced and then assembled into the box cover with the exhaust structure, so that the production process of the box cover with the exhaust structure is simplified. The utility model further discloses a packaging box adopting the box cover with the exhaust structure.

Description

Technical Field

[0001] The utility model relates to the field of packaging boxes, in particular to a box cover with an exhaust structure and a packaging box. Background Art

[0002] When it is necessary to pack food when dining out, a packaging box is usually used to pack food. Existing packaging boxes include a box cover with an exhaust structure and a box body, the box body is used to hold food, and the box cover with an exhaust structure is used to seal the box body. In order to facilitate the packaging box to be directly placed in a microwave oven or oven for heating, some box covers with exhaust structures have exhaust holes and disposable sealing stickers, but once the sealing stickers are opened, such box covers cannot be repeatedly sealed, and the use of adhesives affects food safety. Other box covers with exhaust structures usually include a hard cover body and a soft sealing plug, the cover body is provided with an exhaust hole, and the sealing plug can open or close the exhaust hole. In conventional use, the sealing plug closes the exhaust hole to keep the food fresh. When the packaging box needs to be heated as a whole, the sealing plug can be pulled out to open the exhaust hole, so that the air pressure inside and outside the packaging box is balanced, and the packaging box is prevented from being broken due to excessive pressure inside the packaging box during the heating process. However, the cover body and the sealing plug need to be produced and assembled separately to form a box cover. The above-mentioned box cover with an exhaust structure has a relatively complicated production process and a high production cost. Utility Model Content

[0003] 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 box cover with an exhaust structure, which can simplify the production process and reduce the production cost.

[0004] The utility model also provides a packaging box having the box cover with the exhaust structure.

[0005] According to the first aspect of the present invention, the box cover with exhaust structure comprises a cover body, a flexible connection part and a sealing plug. The cover body is provided with an exhaust hole; one end of the flexible connection part is connected to the cover body; the sealing plug is connected to the other end of the flexible connection part, the sealing plug is flippably arranged on the cover body through the flexible connection part and can be flipped to open or close the exhaust hole, the cover body, the flexible connection part and the sealing plug are an integrally formed structure; the flexible connection part comprises a first connecting plate, a U-shaped plate and a second connecting plate, one end of the U-shaped plate is connected to the outer periphery of the cover body through the first connecting plate, and the other end of the U-shaped plate is connected to the outer periphery of the sealing plug through the second connecting plate.

[0006] The box cover with an exhaust structure according to the embodiment of the first aspect of the utility model has at least the following beneficial effects: the sealing plug can be flipped relative to the cover body through the flexible connection part, so that the sealing plug can be flipped to open or close the exhaust hole to meet normal use needs, and the cover body, the flexible connection part and the sealing plug are an integrally formed structure, and the box cover with an exhaust structure can be completely processed in one molding process, and there is no need to produce the cover body and the sealing plug separately and then assemble them into the box cover with an exhaust structure, thereby simplifying the production process of the box cover with an exhaust structure and reducing the production cost.

[0007] According to some embodiments of the utility model, the sealing plug is provided with a shifting block portion, and the cover body is provided with a finger clearance groove, the finger clearance groove is located on one side of the exhaust hole along the radial direction, and when the cover body closes the exhaust hole, the shifting block portion is at least partially located above the finger clearance groove.

[0008] According to some embodiments of the utility model, the sealing plug includes a cover portion and a plug column portion, one end of the plug column portion is connected to one side of the cover portion, and the cover portion is connected to the other end of the flexible connection portion, and the plug column portion can be snap-fitted with the exhaust hole when inserted into the exhaust hole.

[0009] According to some embodiments of the present invention, the other end of the plug portion is provided with a chamfer, and / or the upper end of the exhaust hole is provided with a chamfer.

[0010] According to some embodiments of the present invention, the distance between the plug portion at a point with a maximum diameter and the cover portion is smaller than the maximum depth of the exhaust hole.

[0011] According to some embodiments of the present invention, the finger clearance groove and the flexible connecting portion are respectively located on two opposite sides of the exhaust hole in the radial direction.

[0012] The packaging box according to the second embodiment of the utility model comprises a box body and the above-mentioned box cover with exhaust structure. The box body is provided with a receiving groove; the box cover with exhaust structure is detachably provided on the box body and can open or cover the receiving groove.

[0013] The packaging box according to the embodiment of the second aspect of the utility model has at least the following beneficial effects: due to the use of the above-mentioned box cover with exhaust structure, the overall production and processing of the packaging box is simpler, the production efficiency of the packaging box is improved and the production cost of the packaging box is reduced.

[0014] According to some embodiments of the utility model, the box cover with the exhaust structure is provided with a first gripping piece, and the box body is provided with a second gripping piece, and the first gripping piece and the second gripping piece are partially staggered in the horizontal direction.

[0015] According to some embodiments of the present invention, the box cover with the exhaust structure is a plastic part or a paper part, and the box body is a plastic part or a paper part.

[0016] 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

[0017] 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:

[0018] Figure 1 It is a three-dimensional schematic diagram of a packaging box of the first embodiment of the utility model;

[0019] Figure 2 The first embodiment of the utility model Figure 1 A local enlarged schematic diagram of point C;

[0020] Figure 3 The first embodiment of the utility model Figure 1 A cross-sectional schematic diagram of the DD direction;

[0021] Figure 4 The first embodiment of the utility model Figure 4 A local enlarged schematic diagram of point E;

[0022] Figure 5 It is a three-dimensional schematic diagram of a packaging box of the second embodiment of the utility model;

[0023] Figure 6 It is a three-dimensional schematic diagram of the box body of the packaging box of the third embodiment of the utility model.

[0024] Reference numerals:

[0025] Cover body 100, vent hole 110, finger clearance groove 120, first gripping piece 130;

[0026] Flexible connection part 200, first connection plate 210, U-shaped plate 220, second connection plate 230;

[0027] Sealing plug 300, block portion 310, cover plate portion 320, plug column portion 330;

[0028] Box body 400 , accommodating groove 410 , second gripping piece 420 . DETAILED DESCRIPTION

[0029] 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.

[0030] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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.

[0031] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only 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.

[0032] 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.

[0033] When it is necessary to pack food when dining out, a packaging box is usually used to pack food. The existing packaging box includes a box cover with an exhaust structure and a box body 400, the box body 400 is used to hold food, and the box cover with an exhaust structure is used to seal the box body 400. In order to facilitate the packaging box to be directly placed in a microwave oven or an oven for heating, some box covers with exhaust structures have exhaust holes and disposable sealing stickers, but once such box covers are opened, the sealing stickers cannot be repeatedly sealed, and the use of adhesives affects food safety. Other box covers with exhaust structures usually include a hard cover body 100 and a soft sealing plug 300, the cover body 100 is provided with an exhaust hole 110, and the sealing plug 300 can open or close the exhaust hole 110. During conventional use, the sealing plug 300 closes the exhaust hole 110 to keep food fresh. When the packaging box needs to be heated as a whole, the sealing plug 300 can be pulled out to open the exhaust hole 110, so that the air pressure inside and outside the packaging box is balanced, and the packaging box is prevented from being broken due to excessive internal pressure during heating. However, the cover body 100 and the sealing plug 300 need to be produced and assembled separately to form the box cover. The production process of the box cover with the exhaust structure is relatively complicated and the production cost is relatively high.

[0034] Reference Figures 1 to 6, is a box cover with an exhaust structure according to an embodiment of the utility model, comprising a cover body 100, a flexible connection part 200 and a sealing plug 300. The cover body 100 is provided with an exhaust hole 110; one end of the flexible connection part 200 is connected to the cover body 100; the sealing plug 300 is connected to the other end of the flexible connection part 200, and the sealing plug 300 is reversibly arranged on the cover body 100 through the flexible connection part 200 and can be reversibly turned to open or close the exhaust hole 110, and the cover body 100, the flexible connection part 200 and the sealing plug 300 are an integrally formed structure.

[0035] The sealing plug 300 can be turned over relative to the cover body 100 through the flexible connection part 200, so that the sealing plug 300 can be turned over to open or close the exhaust hole 110 to meet the normal use needs, and the cover body 100, the flexible connection part 200 and the sealing plug 300 are an integrated structure, and the box cover with the exhaust structure can be completely processed in one molding process, and the cover body 100 and the sealing plug 300 do not need to be produced separately and then assembled into the box cover with the exhaust structure, thereby simplifying the production process of the box cover with the exhaust structure. In addition, the box cover with the exhaust structure does not need to be assembled manually, which improves the production efficiency of the box cover with the exhaust structure and reduces the production cost.

[0036] Specifically, the box cover as a whole is an elastic member, and the flexible connecting part 200 is elastic.

[0037] In the embodiment, the sealing plug 300 is provided with a shifting block portion 310, and the cover body 100 is provided with a finger clearance groove 120, the finger clearance groove 120 is located on one side of the exhaust hole 110 in the radial direction, and when the cover body 100 closes the exhaust hole 110, the shifting block portion 310 is partially located above the finger clearance groove 120. When the sealing plug 300 closes the exhaust hole 110, the sealing plug 300 is partially inserted into the exhaust hole 110, and it is not easy to pull out the sealing plug 300. The finger clearance groove 120 is provided, and the shifting block portion 310 is located above the finger clearance groove 120. The user can insert a finger into the finger clearance groove 120 and push the shifting block portion 310 upward to make the sealing plug 300 escape from the exhaust hole 110, so that the sealing plug 300 can be pulled out conveniently and labor-savingly, and it is convenient to pull out the sealing plug 300 with a finger, and the structure is simple and easy to implement.

[0038] It is understandable that the depth of the finger clearance groove 120 should be greater than the width of the finger to facilitate the insertion of the finger, and those skilled in the art can configure it according to actual needs. It is conceivable that the shifting block portion 310 can also be completely located above the finger clearance groove 120.

[0039] In the embodiment, the sealing plug 300 includes a cover plate portion 320 and a plug column portion 330, one end of the plug column portion 330 is connected to one side of the cover plate portion 320, and the cover plate portion 320 is connected to the other end of the flexible connection portion 200, and the plug column portion 330 can be snap-fitted with the vent 110 when inserted into the vent 110. The plug column portion 330 snap-fits with the vent 110 when plugged, so that the plug column portion 330 requires a certain external force to open, and it is not easy to accidentally open the vent 110 to affect the food preservation, and prevent it from loosening. Specifically, the outer diameter of the plug part 330 tends to increase in the direction away from the cover part 320, and the exhaust hole 110 is a frustoconical hole, so that when the two are plugged in, an undercut is formed, so that the two can be snap-fitted, and the outer diameter of the plug part 330 tends to increase, so that the plug part 330 has a maximum outer diameter, so that when the plug part 330 is inserted into the exhaust hole 110, the plug part 330 can be elastically deformed and abut against the hole wall of the exhaust hole 110 most closely at the maximum outer diameter, so that the sealing performance is better. It is conceivable that the plug part 330 of the sealing plug 300 can also have a constant outer diameter.

[0040] Specifically, the plug part 330 is also in a frustum shape, and the exhaust hole 110 is also in a frustum shape. It is understandable that the plug part 330 can also be in a cylindrical, prism, elliptical or special-shaped column shape, and the shape of the exhaust hole 110 corresponds to the shape of the plug part 330.

[0041] It is conceivable that the end of the plug portion 330 may be provided with a hook, which can hook the periphery of the opening of the exhaust hole 110 to form a snap fit, and the exhaust hole 110 can be opened only after a certain external force is applied.

[0042] In the embodiment, the other end of the plug part 330 is chamfered, and the upper end of the exhaust hole 110 is chamfered. The chamfer is provided to facilitate the plug part 330 to be turned over to insert into the exhaust hole 110. The chamfer can automatically guide the position of the plug part 330 and the exhaust hole 110, making it easier to insert the plug part 330 into the exhaust hole 110. In other embodiments, one of the other end of the plug part 330 and the upper end of the exhaust hole 110 may be chamfered.

[0043] Specifically, the chamfer may be an oblique chamfer, a round chamfer, or an irregularly shaped chamfer, and those skilled in the art may configure the chamfer according to actual needs.

[0044] In the embodiment, the distance between the maximum diameter of the plug part 330 and the cover part 320 is less than the maximum depth of the exhaust hole 110, so that when the plug part 330 is inserted into the exhaust hole 110, the maximum diameter can be closely abutted against the hole wall of the exhaust hole 110, and the structure is simple and easy to implement. Specifically, the distance between the maximum diameter of the plug part 330 and the cover part 320 is A, and the maximum depth of the exhaust hole 110 is B, which satisfies A﹤B.

[0045] In the embodiment, the finger clearance groove 120 and the flexible connection part 200 are respectively located on opposite sides of the exhaust hole 110 in the radial direction. With the above-mentioned position arrangement, when the user's fingertip is inserted into the finger clearance groove 120 and the sealing plug 300 is pulled out, the sealing plug 300 can be flipped away from the exhaust hole 110 under the action of the flexible connection part 200, and the structure is simple and easy to implement. It is conceivable that the positions of the finger clearance groove 120 and the flexible connection part 200 relative to the exhaust hole 110 can also be other situations, and those skilled in the art can make specific configurations according to actual needs.

[0046] In the embodiment, the flexible connection part 200 includes a first connection plate 210, a U-shaped plate 220 and a second connection plate 230, one end of the U-shaped plate 220 is connected to the outer periphery of the cover body 100 through the first connection plate 210, and the other end of the U-shaped plate 220 is connected to the outer periphery of the sealing plug 300 through the second connection plate 230. The flexible connection part 200 adopts the above structure, when the sealing plug 300 is turned over by the flexible connection part 200, the U-shaped plate 220 can allow the flexible connection part 200 to be relatively elastically bent, so that the flexible connection part 200 is not easily broken, and the overall length of the flexible connection part 200 can be slightly extended or shortened, thereby improving the overall ductility and elasticity of the flexible connection part 200, and facilitating the sealing plug 300 to open or close the exhaust hole 110.

[0047] Specifically, a avoiding structure for avoiding the protrusion of the box cover is also provided on the flexible connecting part 200. The provision of the U-shaped plate 220 can also facilitate the avoiding structure to accurately align with the protrusion of the box cover.

[0048] It is conceivable that the flexible connection part 200 can also be an elastic strip, which respectively connects the sealing plug 300 and the cover body 100; or the flexible connection part 200 can also be provided with one or more U-shaped plates 220 to further improve the flexibility, elasticity and ductility of the flexible connection part 200; or the flexible connection part 200 can also be provided with an S-shaped plate, which can also improve the flexibility, elasticity and ductility.

[0049] The utility model also discloses a packaging box, comprising a box body 400 and the above-mentioned box cover with exhaust structure. The box body 400 is provided with a receiving groove 410; the box cover with exhaust structure is detachably provided on the box body 400 and can open or cover the receiving groove 410. Due to the adoption of the above-mentioned box cover with exhaust structure, the overall production and processing of the packaging box is simpler, the production efficiency of the packaging box is improved, and the production cost of the packaging box is reduced.

[0050] In the embodiment, the box cover with exhaust structure is provided with a first gripping piece 130, and the box body 400 is provided with a second gripping piece 420, and the first gripping piece 130 and the second gripping piece 420 are partially staggered in the horizontal direction. The box cover with exhaust structure is detachably connected to the box body 400 by snapping. When the box cover with exhaust structure needs to be opened, if the part for finger pinching is not provided, it is relatively difficult to grab and separate the box cover with exhaust structure and the box body 400. When the box cover with exhaust structure needs to be opened, the first gripping piece 130 can be pinched with one hand and the second gripping piece 420 can be pinched with the other hand, and the two can be pulled away from each other, so as to facilitate the opening of the box cover with exhaust structure; and the first gripping piece 130 and the second gripping piece 420 are partially staggered in the horizontal direction, so that the user can accurately and quickly pinch the mutually staggered parts of the first gripping piece 130 and the second gripping piece 420, respectively, without spending extra time to distinguish and separate the first gripping piece 130 and the second gripping piece 420.

[0051] Specifically, the first gripping piece 130 is disposed on the edge of the box cover with the exhaust structure, and the second gripping piece 420 is disposed on the edge of the box body 400, and the two are opposite to each other up and down.

[0052] In the embodiment, the box cover with exhaust structure is a plastic part, and the box body 400 is a plastic part, which is convenient for integrally processing the box cover with exhaust structure and the box body 400. Specifically, the box cover with exhaust structure can be made of transparent polypropylene, or other plastic materials, such as polyethylene, polyester, polyamide, etc., which have a certain elasticity, which is convenient for integrally molding the box cover with exhaust structure and making the flexible connection part 200 elastic. The box body 400 can be made of transparent or opaque polypropylene, or other plastic materials, such as polyethylene, polyester, polyamide, etc.

[0053] It is conceivable that the box cover with exhaust structure and the box body 400 can also be both formed by relatively hard paper, or the box cover with exhaust structure can be made of plastic material and the box body 400 can be made of paper material, or the box cover with exhaust structure can be made of paper material and the box body 400 can be made of plastic material, etc.; the box body 400 can also be made of glass material.

[0054] Specifically, the box cover with the exhaust structure is provided with an elastic groove arranged in an annular shape, and the elastic groove arranged in an annular shape is adapted to the upper end of the box body 400. The box cover with the exhaust structure is snap-fitted with the upper end of the box body 400 through the elastic groove, so that the box cover with the exhaust structure is detachably connected to the box body 400. It is conceivable that the elastic groove arranged in an annular shape may be provided on the box body 400, and the flange arranged in an annular shape may be provided on the box cover with the exhaust structure, and the flange may be snap-fitted into the elastic groove, so that the two are detachably connected.

[0055] Specifically, the packaging box can be approximately square when viewed from above, or approximately rectangular, circular, polygonal or irregular when viewed from above, and those skilled in the art can configure it specifically according to actual needs. In some embodiments, a partition can also be provided in the box body 400 to separate the accommodating groove 410 into two, three or more areas.

[0056] In the description of this specification, 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.

[0057] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A box cover with an exhaust structure, characterized in that: include: The cover body (100) is provided with an exhaust hole (110); A flexible connection part (200), one end of which is connected to the cover body (100); a sealing plug (300) connected to the other end of the flexible connection part (200); the sealing plug (300) is flippably arranged on the cover body (100) through the flexible connection part (200) and can be flipped to open or close the exhaust hole (110); the cover body (100), the flexible connection part (200) and the sealing plug (300) are an integrally formed structure; The flexible connection part (200) includes a first connection plate (210), a U-shaped plate (220) and a second connection plate (230), one end of the U-shaped plate (220) is connected to the outer periphery of the cover body (100) through the first connection plate (210), and the other end of the U-shaped plate (220) is connected to the outer periphery of the sealing plug (300) through the second connection plate (230).

2. The box cover with exhaust structure according to claim 1, characterized in that: The sealing plug (300) is provided with a shifting block portion (310), and the cover body (100) is provided with a finger clearance groove (120), wherein the finger clearance groove (120) is located on one side of the exhaust hole (110) in a radial direction, and when the cover body (100) closes the exhaust hole (110), the shifting block portion (310) is at least partially located above the finger clearance groove (120).

3. The box cover with exhaust structure according to claim 1, characterized in that: The sealing plug (300) comprises a cover portion (320) and a plug column portion (330), one end of the plug column portion (330) is connected to one side of the cover portion (320), and the cover portion (320) is connected to the other end of the flexible connection portion (200), and the plug column portion (330) can be snap-fitted with the exhaust hole (110) when inserted into the exhaust hole (110).

4. The box cover with exhaust structure according to claim 3, characterized in that: The other end of the plug part (330) is provided with a chamfer, and / or the upper end of the exhaust hole (110) is provided with a chamfer.

5. The box cover with exhaust structure according to claim 3, characterized in that: The distance between the plug portion (330) at the point where the diameter is the largest and the cover plate portion (320) is smaller than the maximum depth of the exhaust hole (110).

6. The box cover with exhaust structure according to claim 2, characterized in that: The finger clearance groove (120) and the flexible connection portion (200) are respectively located on two opposite sides of the exhaust hole (110) in the radial direction.

7. A packaging box, characterized in that: include: The box body (400) is provided with a receiving groove (410); The box cover with exhaust structure according to any one of claims 1 to 6 is detachably arranged on the box body (400) and can open or cover the containing groove (410).

8. The packaging box according to claim 7, characterized in that: The box cover with an exhaust structure is provided with a first gripping piece (130), and the box body (400) is provided with a second gripping piece (420), and the first gripping piece (130) and the second gripping piece (420) are partially staggered in a horizontal direction.

9. The packaging box according to claim 7, characterized in that: The box cover with the exhaust structure is a plastic part or a paper part, and the box body (400) is a plastic part or a paper part.

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