Food packaging containers

Abstract

To provide a food packaging container whose structure is simple, in which fitting of a lid body and a container body is good, and which can be handled easily.SOLUTION: A food packaging container is provided which includes a container body and a lid body. The lid body includes a fitting structure to be fitted in the container body, and by the fitting structure, the lid body is detachably fitted in the container body. The fitting structure includes: an engagement part protruding toward the outside of the lid body; and an engagement protrusion part protruding toward the inside of the lid body. A contact apex part is provided at one side of the engagement part. The lid body is fitted in the container body, the engagement protrusion part is brought into contact with an edge part outside of the container body, and the contact apex part is brought into contact with an edge part inside of the container body, and an edge part of the container body is elastically deformed within a preset range. The food packaging container has a simple structure, fitting between the lid body and the container body is strong, and engaging and removing operations are easy.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to the technical field of food packaging containers, and more particularly to food packaging containers. [Background technology]

[0002] Food packaging is a component of food products. It protects food and prevents damage from biological, chemical, and physical foreign elements during its journey from production to consumption. It may also maintain the stable quality of the food itself, facilitate food consumption, and primarily express the food's appearance, creating a consumer-friendly image, providing value beyond its material cost. Food packaging can be classified by packaging material, such as metal, glass, paper, plastic, and composite materials. Food packaging can also be classified by packaging type, such as cans, bottles, packs, bags, rolls, boxes, and cases. Paper is primarily made from plant fibers, which are biodegradable and recyclable. For hygiene reasons, most food packaging is disposable. With growing environmental awareness, paper food packaging is becoming more common. Summary of the Invention [Problem to be solved by the invention]

[0003] In conventional technology, many food packaging containers have a paper container body at the bottom and a transparent plastic lid, allowing for easy viewing of the food inside the container through the lid and making it suitable for food sorting. However, it is difficult to mold a fastener that fits the lid to a paper container body, and the container body generally has a simple paper box structure. Although the lid and container body are easily closed when mated, the lid easily comes off the container body. Therefore, after the lid is fastened to the container body, additional fastening with cellophane tape or a stapler is required, making it inconvenient to attach and remove. After fastening the lid to the container body with cellophane tape and a stapler, removing the lid can be difficult if the position or amount of food inside the container needs to be adjusted. Meanwhile, consumers may damage the lid or container body when removing the lid, and if they do not finish eating at once, the damaged lid or container body can make it inconvenient to repackage food.

[0004] Therefore, it is necessary to provide a food packaging container that has a simple structure, a good fit between the lid and the container body, and is easy to handle.

[0005] An object of the present invention is to provide a food packaging container that has a simple structure, a good fit between the lid and the container body, and is easy to handle. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the present invention provides a food packaging container comprising: a container body; and a lid body having an engaging structure that engages with the container body and that is detachably engaged with the container body by the engaging structure, wherein the engaging structure comprises an engaging portion that protrudes toward the outside of the lid body, an engaging protrusion that protrudes toward the inside of the lid body, and an abutting top portion provided on one side of the engaging portion, wherein the lid body engages with the container body, the engaging protrusion portion abuts against the outside edge of the container body, and the abutting top portion abuts against the inside edge of the container body, and the edge of the container body elastically deforms within a predetermined range.

[0007] Preferably, the fitting structure further includes a positioning recess, which is recessed and provided in the lid body, the positioning recess guides the fitting of the container body and the lid body, and the edge of the container body is positioned within the positioning recess, so that the container body is held in the first state.

[0008] Preferably, the positioning recess includes a first positioning portion and a second positioning portion, and the lid body is fitted to the container body, with the first positioning portion abutting against the inner edge of the container body and the second positioning portion abutting against the outer edge of the container body.

[0009] Preferably, the inner surface of the lid is provided with a positioning protrusion that protrudes in the direction of engagement with the container body, and a gap between the positioning protrusion and the inner wall of the lid forms a positioning recess.

[0010] Preferably, a first guide portion for guiding the container body is also provided on an extension line of the first positioning portion, thereby enabling the container body to extend into the positioning recess.

[0011] Preferably, the container body is made of a paper material, and the lid is made of a plastic material.

[0012] Preferably, the engaging portion further includes a limiting portion that limits the container body, the limiting portion forming a storage space for the container body to extend between the limiting portion and the abutment top portion, the lid body being fitted to the container body so that one end of the container body is positioned within the storage space, the inside of the container body abutting the abutment top portion, and the outside of the container body abutting the limiting portion.

[0013] Preferably, the engaging projection is provided integrally with the lid, and the cross section of the engaging projection gradually changes from large to small from one end close to the lid to the other end.

[0014] Preferably, a plurality of engagement blocks are also arranged within the lid body, and the lid body is fitted to the container body so that the engagement blocks abut against the outer edge of the container body, thereby enabling the tab engagement blocks to strengthen the engagement between the container body and the lid body.

[0015] Preferably, a bump is provided so as to protrude into the lid, and the bump engages with the inner wall of the lid to form an engaging portion.

[0016] The bump further includes a second guide portion on the side closer to the engagement portion, the second guide portion being located on an extension of the abutment top portion, the second guide portion being curved, and the second guide portion allowing the container body to extend into the engagement portion.

[0017] Preferably, the lid body includes a support sheet and an upper lid integrally, the engagement portion is located between the support sheet and the upper lid, the upper lid is provided with a bump protruding toward the support sheet, and the bump cooperates with the inner wall of the support sheet to form the engagement portion, the upper lid includes a top plate and a plurality of side plates surrounding the periphery of the top plate, the top plate and the plurality of side plates are surrounded by a hollow internal cavity in the support sheet, and bumps are arranged between two adjacent side plates, and each of the bumps engages with the inner wall of the support sheet to form the engagement portion.

[0018] After adopting the above technical solutions, the food packaging container of the present invention comprises a container body and a lid, wherein the container body is used to store food and the lid is used to seal the food in the container body. The container body is made of paper, making it environmentally friendly and easy to disassemble. The lid is made of plastic, making it more sturdy. Specifically, the lid is provided with a fitting structure that fits with the container body, allowing the lid to be attached and detached to the container body through this fitting structure. The fitting structure includes an engaging portion that extends convexly outward from the lid and an engaging protrusion that extends convexly inward from the lid. That is, the snap portion (engaging portion) protrudes convexly outward from the lid, and the engaging protrusion fits convexly into the inside of the lid. An abutting apex is provided on one side of the engaging portion, and a limiting portion is provided on the other side of the engaging portion, forming a storage space into which the container body is inserted between the limiting portion and the abutting apex. When the lid is fitted to the container body, the engaging portion abuts against the outer edge of the container body, the abutting top abuts against the inner edge of the container body, and the limiting portion abuts against the outer edge of the container body, causing the edge of the container body to elastically deform within a predetermined range. A second guide portion is also provided on the extension of the abutting top, so that the arc-shaped second guide portion can guide the container body and extend into the engaging portion. It can be understood that the limiting portion is used to provide limited support for the container body, and the abutting top and engaging portion press against the edge of the container body from both the inside and outside of the container body, causing elastic deformation of the edge of the container body. The elastically deformed container body has a reset tendency to rebound against the engaging portion and the engaging protrusion, creating a frictional force that prevents the container body from coming off the lid, firmly attaching the container body to the lid and preventing it from easily falling off. Meanwhile, the lid is equipped with numerous engagement blocks (clips), which are fitted to the container body so that the engagement blocks butt against the outer edges of the container body when the lid is fitted to the container body, strengthening the engagement between the container body and the lid. The fitting structure further comprises a positioning recess, and a positioning protrusion is provided on the inner surface of the lid 20 in the fitting direction, with the positioning recess formed by the gap between the positioning protrusion and the inner wall of the lid 20. The positioning recess is used to guide the container body and the lid when they are fitted together, and the edge of the container body is positioned within the positioning recess, allowing the container body to be held in the first state.The first guide portion of the positioning recess guides the container body to the appropriate mounting position, allowing for better engagement with the lid. The positioning recess also prevents the container body from deforming too much against the engaging protrusions and engaging blocks, resulting in inward deformation. A deformed container body may disengage from the engaging protrusions and engaging blocks, allowing it to be easily removed from the fixed structure. In other words, the guide restriction of the positioning recess makes it difficult for the container body to deform, allowing the container body to maintain its original state as much as possible. The positioning recess also ensures a more secure engagement between the container body and the lid. The food packaging container of the present invention has a simple structure, ensures a secure engagement between the container body and the lid, and facilitates the operations of engaging and removing the container body and the lid. [Brief explanation of the drawings]

[0019] In order to more clearly describe the technical solutions of the embodiments of the present invention, the following will briefly describe the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these accompanying drawings without any creative efforts.

[0020] [Figure 1] 1 is a diagram illustrating the configuration of a food packaging container according to one embodiment of the present invention. [Figure 2] FIG. 2 is an exploded view of the configuration of FIG. 1. [Figure 3] 2 is a structural cross-sectional view of an engaging portion and an engaging protrusion portion of FIG. 1. FIG. [Figure 4] FIG. 4 is a cross-sectional view of the structure in another state of FIG. 3. [Figure 5] FIG. 4 is a cross-sectional view of the structure in yet another state of FIG. 3. [Figure 6] FIG. 3 is a diagram showing the configuration of the container body in FIG. 2. [Figure 7] FIG. 7 is a cross-sectional view of FIG. [Figure 8] FIG. 3 is a configuration diagram of the lid body in FIG. 2. [Figure 9] 9 is a diagram showing the configuration of the cover in FIG. 8 at a different angle. [Figure 10] FIG. 10 is a partial configuration diagram of the container body in FIG. 9. [Figure 11] FIG. 10 is a partial cross-sectional view of the positioning recess of FIG. 9. [Figure 12] FIG. 10 is a configuration diagram of a lid according to another embodiment of the present invention. [Figure 13] FIG. 2 is a diagram showing a configuration in which the food packaging containers of FIG. 1 are stacked. [Figure 14] FIG. 3 is a diagram showing a configuration in which the lids in FIG. 2 are stacked. [Explanation of symbols]

[0021] 100: food packaging container, 10: container body, 101: storage cavity (hollow), 102: groove, 11: bottom plate, 12: side wall, 13: support portion, 20: lid body, 201: upper lid, 2011: top plate, 2012: side plate, 202: support sheet, 203: internal cavity (hollow), 210: fitting structure, 21: engagement portion, 211: abutment top portion, 212: limiting portion, 22: engagement protrusion, 23: positioning protrusion, 231: first guide portion, 24: engagement block, 25: bump, 26: second guide portion, 27: flange, 28: positioning recess, 281: first positioning portion, 282: second positioning portion, 29: limiting block DETAILED DESCRIPTION OF THE INVENTION

[0022] In order to explain the technical contents and structural features of the present invention in detail, the following embodiments are combined and further described in conjunction with the accompanying drawings.

[0023] 1 to 5, the present invention provides a food packaging container 100 including a container body 10 and a lid 20. The container body 10 is used to store food, and the lid 20 is used to seal the food inside the container body 10. The container body 10 can be made of a paper material, which is environmentally friendly and easy to disassemble. The lid 20 can be made of a plastic material, which can provide a stronger structure. The lid 20 is also made of a transparent material, which allows the type of food inside the container body 10 to be easily seen through the lid 20. The lid 20 is provided with a snap-fit ​​structure (interlocking structure) 210 to fit onto the container body 10, and the lid 20 is removably secured to the container body 10 by this interlocking structure 210. Specifically, the fitting structure 210 includes an engaging portion 21 that protrudes outward from the lid 20 and an engaging protrusion 22 that protrudes inward from the lid 20, with a contact top 211 provided on one side of the engaging portion 21. When the lid 20 is fitted to the container body 10, the engaging protrusion 22 abuts against the outer edge of the container body 10, and the abutment top 211 abuts against the inner edge of the container body 10, causing the inside of the container body 10 to elastically deform within a predetermined range. The container body 10 that has undergone elastic deformation has a tendency to return to its original shape, so it can repel the abutment top (countertop) 211 and the engaging protrusion 22, thereby generating a frictional force between the container body 10, the abutment top 211, and the engaging protrusion 22. It can be understood that this frictional force allows the container body 10 to fit securely into the lid 20. Here, the container body 10 includes a bottom plate 11 and a side wall 12, and the edge of the container body 10 is located on the side wall 12, or the edge of the container body 10 may be a part of the side wall 12. At any appropriate position on the container body 10, the container body 10 can be elastically deformed by the multiple side walls 12 cooperating with the engagement portion 21, i.e., the entire side wall 12 can be elastically deformed. The preset range is a range in which the deformation of the container body 10 is automatically reset. When the abutting apex 211 of the engagement portion 21 (snap-in portion) abuts against the container body 10 from the inside of the side wall 12 of the container body 10 and the abutting apex 211 is pressed against the container body 10, the engaging protrusion 22 abuts against the container body 10 from the outside of the side wall 12 of the container body 10.If the engaging protrusion 22 protrudes and stretches too far, making excessive contact with the container body 10, the container body 10 will bend and deform, becoming unable to return to its original shape. Therefore, the alignment of the abutting top 211 and the engaging protrusion 22 and the length of the protrusion are all within a certain range. In the container body 10, the container body 10 elastically deforms, generating a frictional force that can automatically reset the deformation of the container body 10. In the food packaging container 100 of the present invention, the engaging structure 210 allows the lid 20 to be detachably engaged with the container body 10, ensuring a secure engagement and eliminating the need for auxiliary fastening using transparent tape, staples, etc., making removal easy and eliminating the need for additional steps.

[0024] 6 to 12, in some optional embodiments, the container body 10 includes a bottom plate 11 and a plurality of side walls 12 attached to the bottom plate 11, and the plurality of side walls 12 are attached to surround the bottom plate 11 to form a storage cavity 101 for storing food or other suitable items. Meanwhile, the lid body 20 may include a top plate 2011 and a plurality of side plates 2012 surrounding the periphery of the top plate 2011, and the top plate 2011 and the plurality of side plates 2012 together form an internal cavity 203. The lid body 20 also includes a support sheet 202 and an upper lid 201 that are integral with each other, and the upper lid 201 may protrude from the support sheet 202, and the upper lid 201 includes the top plate 2011 and a plurality of side plates 2012 surrounding the periphery of the top plate 2011. In this embodiment, the outer shape of the lid 20 is substantially the same as the outer shape of the container body 10, allowing for better fitting. When the lid 20 is fitted to the container body 10, the lid 20 covers the storage cavity 101, and the internal cavity (hollow, space) 203 combines with the storage cavity (hollow, space) 101, increasing the storage space of the entire food packaging container 100 and allowing for better placement of food. For example, the container body 10 may have four side walls 12, three side walls 12, five side walls 12, or six side walls 12. Naturally, the container body 10 may also have a structure with other suitable numbers of side walls 12. That is, the cross-sectional shape of the container body 10 may be other shapes, such as a square, a triangle, a pentagon, a hexagon, or a star. Therefore, the lid 20 may have various suitable shapes to fit the container body 10. In other embodiments, the cross section of the container body 10 may have an irregular structure such as a circle, an oval, or a cloud shape.

[0025] In some circumstances, referring to FIGS. 1 , 2 , and 8 to 12 , in some optional embodiments, the lid 20 further includes a positioning recess 28. The positioning recess 28 is recessed within the lid 20. The lid 20 guides the edge of the container body 10 through the positioning recess 28, and the container body 10 and the lid 20 are fitted together. The edge of the container body 10 is positioned within the positioning recess 28, and the container body 10 is held in the first state. That is, when the lid 20 is fitted to the container body 10, the side wall 12 of the container body 10 is positioned within the positioning recess 28. Specifically, the positioning recess 28 includes a first positioning portion 281 and a second positioning portion 282. When the lid 20 is fitted to the container body 10, the first positioning portion 281 abuts against the inner edge of the container body 10, and the second positioning portion 282 abuts against the outer edge of the container body 10. Meanwhile, a first guide portion 231 used to guide the container body 10 is provided on an extension line of the first positioning portion 281, and the first guide portion 231 allows the container body 10 to enter the positioning recess 28. It is understood that the first positioning portion 281 and the first guide portion 231 are located at the positioning protrusion 23. The positioning protrusion 23 is provided to protrude convexly from the inner wall of the lid 20 and is provided in approximately the same direction as the protruding direction of the bump 25 inside the lid 20. The positioning protrusion 23 may protrude convexly from the top plate 2011 toward the side plate 2012. In some embodiments, the positioning protrusion 23 is installed on the top lid 201 and protrudes toward the support sheet 202 in the internal cavity 203, and the positioning protrusion 23 is connected to the support sheet 202. The inner wall of the support sheet is combined to form the positioning recess 28, and the positioning recess 28 holds the container body 10 in the first state. The first state is when the container body 10 generally retains the shape it had before being fitted with the lid 20, and there is no excessive deformation on the inside. In this embodiment, the positioning recesses 28 are used to guide the side walls 12 of the container body 10. When the container body 10 is fitted with the lid 20, the engaging protrusions 22 and the abutting apexes 211 on the lid 20 come into contact with both sides of the side walls 12 of the container body 10, generating frictional forces on both sides of the side walls 12, and the container body 10 is firmly fitted into the engaging portions 21.At the same time, the inner wall of the lid 20 is provided with a plurality of engagement blocks 24, and both the engagement blocks 24 and the engagement protrusions 22 abut against the outside of the container body 10. If the engagement blocks 24 and the engagement protrusions 22 abut against the side wall 12 of the container body 10 for a long period of time, the container body 10 is likely to deform inward, which not only affects the appearance of the container body 10 but also makes the deformed container body 10 more likely to come off the lid 20. Furthermore, the middle portion of the top lid 201 serves as a base for the container body 10, and the lid 20 serves as a base for the container body 10, which affects the appearance of the container body 10 and makes the deformed container body 10 more likely to come off the lid 20. A positioning protrusion 23 is provided in the middle portion of the top lid 201 to form a positioning recess 28. The positioning recess 28 is for receiving the side wall 12 of the container body 10, and the side wall 12, which guides and restricts the positioning recess 28, makes the container body 10 less likely to deform and maintains the container body 10 in its original state as much as possible. Furthermore, the container body 10 is recessed inward when the engaging protrusions 22 and the engaging blocks 24 butt against each other, and then returns to its outward position under the constraints of the abutting tops 211 and the positioning recesses 28, causing the entire container body 10 to flexibly bend back and forth. This elastically deforming structure can be more firmly fitted into the lid 20, is less likely to shake, and is less likely to separate from each other, making the entire structure stronger.

[0026] 3 to 5 , in some optional embodiments, the engagement portion 21 further includes a limiting portion 212 for limiting the container body 10. It can be understood that the limiting portion 212 is used to limit and support the container body 10, and when the side wall 12 of the container body 10 enters the engagement portion 21, the abutting top 211 abuts against a certain point on the inside of the container body 10, and the limiting portion 212 supports the container body 10 from the outside, allowing the abutting top 211 to better abut against the container body 10. Specifically, an accommodation space into which the container body 10 is inserted is formed between the limiting portion 212 and the abutting top 211, and the lid 20 is fitted to the container body 10 so that one end of the container body 10 is located within the accommodation space, with the inside of the container body 10 abutting against the abutting top 211 and the outside of the container body 10 abutting against the limiting portion 212.

[0027] 3 to 5 and 8 to 12, in some optional embodiments, the engagement protrusions 22 are integrally formed with the lid 20, and are tapered so that their cross sections become smaller from one end of the lid 20 to the other. In this case, the engagement protrusions 22 are located below the engagement portions 21, i.e., below the abutting ridges 211, and the engagement protrusions 22 and the abutting ridges 211 are misaligned on both the inside and outside of the container body 10 to better act on the container body 10, allowing the container body 10 to better elastically deform and fit into the lid 20. Meanwhile, a plurality of engagement blocks 24 are further distributed within the lid 20, and the configuration of the engagement blocks 24 is substantially the same as the configuration of the engagement protrusions 22. The lid 20 is fitted to the container body 10 so that the engagement blocks 24 abut against the outside of the edge of the container body 10, and the engagement blocks 24 strengthen the engagement between the container body 10 and the lid 20. To improve the fit between the container body 10 and the lid 20, multiple engagement blocks 24 are provided around the periphery of the lid 20, and it is understood that the engagement blocks 24 may be located below the engagement portions 21 and at the same height as the engagement protrusions 22. The engagement blocks 24 are used to assist the engagement protrusions 22 in abutting against the container body 10. The engagement blocks 24 and the engagement protrusions 22 abut (press) against the container body 10 from the outside of the container body 10. To prevent the container body 10 from wobbling within the engagement portions 21, the abutment apex 211 abuts against the container body 10 from the inside of the container body 10, ensuring a strong fit and preventing it from easily falling off.

[0028] 8 to 12 , in some optional embodiments, the top plate 2011 in the lid 20 is provided with a bump 25 that protrudes from the top plate 2011 in a direction toward the side plate 2012, and the bump 25 cooperates with the inner wall of the side plate 2012 of the lid 20. In other embodiments, the lid 20 includes an integral support sheet 202 and an upper lid 201, and the engagement portion 21 is located between the support sheet 202 and the upper lid 201. Of these, the upper lid 201 faces the support sheet 202. The support sheet 202 is provided with a bump 25 that protrudes toward the support sheet 202. The bump 25 and the inner wall of the support sheet 202 form the engagement portion 21. A contact apex 211 is provided on a side of the bump 25 near the inner wall of the lid 20 to press against the container body 10. It can be seen that below the abutting top 211 is the second guide portion 26, which is located on an extension of the abutting top 211 and has an arc-shaped structure, allowing the container body 10 to more easily curve into the engagement portion 21. Specifically, the top cover 201 includes a top plate 2011 and a plurality of side plates 2012 arranged around the top plate 2011, and the top plate 2011 and the plurality of side plates 2012 are arranged to form a hollow internal cavity 203 on the support sheet 202. Bumps 25 are provided between adjacent side plates 2012, and each bump 25 cooperates with the inner wall of the support sheet 202 to form the engagement portion 21. For example, when the lid body 20 has a rectangular parallelepiped structure, bumps 25 are provided at the four corners of the lid body 20, forming four engagement portions 21 at the four corners, and the four corners of the container body 10 are firmly fitted into the lid body 20 by the four engagement portions 21. Among these, the engagement portions 21 may be L-shaped between two adjacent side plates 2012, and corresponding engagement protrusions 22 are provided at locations where the engagement portions 21 are located on different side plates 2012, so that the container body 10 can be more firmly fitted into the lid body 20. In other words, one engagement portion 21 may be provided with multiple abutment tops 211 that cooperate with the container body 10, and a corresponding engagement protrusion 22 may be provided below each abutment top (push top surface) 211.

[0029] 12 , in some optional embodiments, the lid 20 has a flat structure. The top plate 2011 extends outward with a plurality of engagement portions 21. In another embodiment, the top plate 2011 has a plurality of engagement portions 21 extending outward. The engagement portions 21 extend outward along their circumference; that is, the bumps 25 forming the engagement portions 21 and the positioning protrusions 23 may be integral with each other, and may extend convexly as a whole in the direction of mating with the container body 10. The engagement portions 21 that mate with the container body 10 may be formed on the periphery of the top plate 2011, and in this embodiment, it is understood that the engagement portions 21 and the positioning recesses 28 are connected to each other and form an integral structure.

[0030] 3 to 5, 8 to 10, and 14, in some optional embodiments, a plurality of limiting blocks 29 are provided protruding from the outside of the lid body 20 along its circumferential direction. The limiting blocks 29 make it easy to stack the lid bodies 20. The lid body 20 has an internal cavity 203, which makes it large in volume, thereby saving space when stacked. By providing the limiting blocks 29 on the outer periphery of the lid body 20, the stacked lid bodies 20 can be more easily separated after stacking. Meanwhile, a flange 27 protruding outward is provided at one end of the lid body 20 where it fits into the container body 10. This flange 27 makes it easy to separate two stacked lid bodies 20 or to remove the lid body 20 from the container body 10.

[0031] Referring to Figures 6, 7, and 13, in some optional embodiments, the side walls 12 are positioned away from the storage cavity 101. Supports 13 are provided protruding from one end and are used to support the lid 20. The multiple supports 13 form grooves 102 on the other surface of the bottom plate 11, and these grooves 102 allow the container body 10 to be stacked on the lid 20 of another food packaging container 100. The side walls 12 may be connected to the bottom plate 11, or the side walls 12 and the bottom plate 11 may be integrally formed. When the side walls 12 cooperate with the bottom plate 11, they may be rotated outward to increase their thickness. This allows the side walls 12 to have stronger elastic restoring force. The outward-facing portions of the side walls 12 protruding from the bottom plate 11 form the supports 13 that support the container body 10, making the overall structure of the container body 10 stable and easy to stack.

[0032] As shown in FIGS. 1 to 14 , the food packaging container 100 of the present invention includes a container body 10 and a lid body 20. The container body 10 is used to store food, and the lid body 20 is used to seal the food inside the container body 10. The container body 10 is made of a paper material, making it environmentally friendly and easy to disassemble. The lid body 20 is made of a plastic material, giving it a stronger structure. Specifically, the lid body 20 is provided with an engagement structure 210 that engages with the container body 10, and this engagement structure 210 allows the lid body 20 to cooperate with the container body 10 in a detachable manner. The engagement structure 210 includes an engagement portion 21 that extends convexly outward from the lid body 20, and an engagement protrusion 22 that extends convexly inward from the lid body 20. That is, the engagement portion 21 protrudes convexly outward from the lid body 20, and the engagement protrusion 22 protrudes convexly into the inside of the lid body 20. An abutting apex 211 is provided on one side of the engaging portion 21, and a limiting portion 212 is provided on the other side of the engaging portion 21, and a storage space for inserting the container body 10 is formed between the limiting portion 212 and the abutting apex 211. When the lid 20 is fitted to the container body 10, the engaging protrusion 22 abuts against the outer edge of the container body 10, the abutting apex 211 abuts against the inner edge of the container body 10, and the limiting portion 212 abuts against the outer edge of the container body 10, causing the edge of the container body 10 to elastically deform within a predetermined range. A second guide portion 26 is further provided on an extension line of the abutting apex 211, and the curved second guide portion 26 guides the container body 10 to extend into the engaging portion 21. It is understood that the limiting portion 212 is used to limit the support of the container body 10, and the abutting top portion 211 and the engaging protrusions 22 press against the edge of the container body 10 from both the inside and outside of the container body 10, causing elastic deformation at the edge of the container body 10. The elastically deformed container body 10 always has a tendency to return to its original shape, and generates a frictional force by acting repulsively against the abutting top portion 211 and the engaging protrusions 22, preventing the container body 10 from coming off the lid 20. The container body 10 is firmly fitted into the lid 20 and does not easily fall off. Meanwhile, a plurality of engaging blocks 24 are provided inside the lid 20, and the lid 20 is fitted to the container body 10 so that the engaging blocks 24 abut against the side surfaces of the container body 10, and the outside of the container body is strengthened by the engaging blocks 24, improving the fit between the container body 10 and the lid 20.The fitting structure 210 further includes a positioning recess 28. The lid 20 has a positioning protrusion 23 on the inside thereof that protrudes toward the engagement direction with the container body 10. A gap between the positioning protrusion 23 and the inner wall of the lid 20 forms the positioning recess 28. The positioning recess 28 guides the container body 10 into engagement with the lid 20, and the edge of the container body 10 is positioned within the positioning recess 28. This holds the container body 10 in the first state. A first guide portion 231 on the positioning recess 28 guides the container body 10 to the first position. The positioning recess 28 can be oriented to an appropriate mounting position for better engagement with the container body 10. The positioning recess 28 is also large enough to prevent inward deformation of the container body 10 due to excessive deformation of the container body 10 relative to the engagement protrusion 22 and the engagement block 24. A deformed container body 10 can be released from the engagement protrusion 22 and the engagement block 24 and easily removed from the fixing structure. That is, the guide restriction of the positioning recess 28 makes it difficult for the container body 10 to deform, and it is possible to maintain the container body 10 in its original state as much as possible. Furthermore, the positioning recess 28 allows the container body 10 and the lid 20 to be more firmly fitted together. The food packaging container 100 of the present invention has a simple structure, provides a strong fit between the container body 10 and the lid 20, and allows for easy engagement and removal of the container body 10 and the lid 20.

[0033] The above disclosure is merely an example of the invention, and does not limit the scope of the claims, so that equivalent modifications made within the scope of the claims fall within the scope of the invention.

Claims

1. a container body including a bottom plate and a side wall, the side wall being linearly extended outward from a portion where the side wall is connected to the bottom plate to an upper end portion; a lid body having a fitting structure that fits into the container body and that is detachably fitted to the container body by the fitting structure, the fitting structure includes an engaging portion that protrudes toward the outside of the lid body and an engaging protrusion that protrudes toward the inside of the lid body, a contact apex portion is provided on one side of the engagement portion; the lid is fitted to the container body, the engaging protrusion abuts against the outer edge of the container body, and the abutting apex abuts against the inner edge of the container body, elastically deforming the edge of the container body within a preset range; a bump provided to protrude into the lid, the bump cooperating with an inner wall of the lid to form the engagement portion; The lid body includes a support sheet and an upper lid that are integral with each other, the engaging portion is located between the support sheet and the upper cover, the upper cover is provided with a bump that protrudes toward the support sheet, the bump forms the engaging portion with an inner wall of the support sheet, The upper cover includes a top plate and a plurality of side plates surrounding the periphery of the top plate, the top plate and the plurality of side plates form a hollow internal cavity in the support sheet, and the bumps are disposed between two adjacent side plates; A food packaging container, characterized in that each of the bumps engages with an inner wall of the support sheet to form the engagement portion.

2. The fitting structure further includes a positioning recess; 2. The food packaging container according to claim 1, wherein the positioning recess is recessed and provided within the lid body, the positioning recess guides the container body to engage with the lid body, and the edge of the container body is positioned within the positioning recess, so that the container body is maintained in the first state.

3. the positioning recess includes a first positioning portion and a second positioning portion; 3. The food packaging container according to claim 2, wherein the lid is fitted to the container body, the first positioning portion abuts against the inside edge of the container body, and the second positioning portion abuts against the outside edge of the container body.

4. a positioning protrusion provided on the inner surface of the lid body so as to protrude in a direction of engagement with the container body, 3. The food packaging container according to claim 2, wherein a gap between the positioning protrusion and the inner wall of the lid defines the positioning recess.

5. a first guide portion for guiding the container body, the first guide portion being provided on an extension line of the first positioning portion; The food packaging container according to claim 3 , wherein the first guide portion allows the container body to extend into the positioning recess.

6. The container body is made of a paper material, 2. The food packaging container according to claim 1, wherein the lid is made of a plastic material.

7. the engaging portion includes a limiting portion for limiting the container body, the limiting portion defines a receiving space for the container body to extend between the limiting portion and the abutting top portion; the lid is fitted to the container body so that one end of the container body is positioned within the storage space, 2. The food packaging container according to claim 1, wherein the inside of the container body abuts against the abutment top portion, and the outside of the container body abuts against the limiting portion.

8. The engaging protrusion is provided integrally with the lid, 2. The food packaging container according to claim 1, wherein the engaging projections have a cross section that gradually changes from larger to smaller in a direction from one end closer to the lid to the other end.

9. a plurality of engagement blocks provided in the lid body; 2. The food packaging container according to claim 1, wherein the lid is fitted to the container body so that the engaging block abuts against the outer edge of the container body, and the engaging block strengthens the engagement between the container body and the lid.

10. the bump includes a second guide portion provided on a side closer to the engaging portion, the second guide portion being located on an extension of the contact apex; The food packaging container according to claim 1 , wherein the second guide portion has a curved structure, and the second guide portion allows the container body to extend into the engaging portion.

11. The container body has a polygonal shape in a plan view, The fitting structure is provided adjacent to both sides of one vertex of the polygon of the container body in a plan view. The food packaging container according to claim 1.

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