Food packaging bag with heat preservation function

By designing a combination of support structure and insulation structure in food packaging bags, the problem of fragile structure of existing food packaging bags is solved, and higher load-bearing capacity and better environmental protection performance are achieved.

CN222973959UActive Publication Date: 2025-06-13SHANDONG SISHUI YUANDA PACKAGING PRINTING CO LTD
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Patent Information

Application Number
CN202422295654.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-06-13
Estimated Expiration
2034-09-20

AI Technical Summary

Technical Problem

The existing food packaging bags with thermal insulation function are fragile structures and are prone to rupture, causing food to spill and difficult to recycle after use.

Method used

A food packaging bag including an insulation structure and a support structure is designed. The support structure is fixedly installed on the bottom surface of the insulation structure through adhesive, and a load-bearing tension and sealing structure are installed on the support structure, and a neodymium magnet is installed inside to achieve rapid packaging and load-bearing.

Benefits of technology

The load-bearing capacity of food packaging bags is improved, and the food spilling problems caused by damage is avoided. Moreover, even if the insulation structure is damaged, the support structure can be removed and reused, reducing waste.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222973959U_ABST
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Abstract

The food packaging bag with the heat preservation function comprises a heat preservation structure and a bearing structure, the bearing structure is fixedly installed on the bottom face in the heat preservation structure in a pasted mode, and bearing tie bars are fixedly installed on the positions, close to the two sides, of the upper surface of the bearing structure. The upper ends of the two bearing tie bars are fixedly connected with a left sealing structure and a right sealing structure correspondingly, and neodymium magnets are fixedly installed in the left sealing structure and the right sealing structure correspondingly. According to the food packaging bag with the heat preservation function, the bearing capacity of an original structure of the food packaging bag can be greatly improved, the food packaging bag with the good heat preservation performance and the load higher than that of an integrated food packaging bag is achieved, and therefore the loss of food scattering caused by damage is avoided, and even if the heat preservation structure is damaged, the food packaging bag cannot be damaged. And the internal structure can be detached and pasted into a new heat preservation structure again for continuous use, so that the heat preservation structure is more environment-friendly, and unnecessary waste is reduced.
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Description

Technical Field

[0001] The utility model relates to the field of packaging bags, in particular to a food packaging bag with heat preservation function. Background Art

[0002] The main uses of food packaging bags are for packaging convenience, heat insulation and protection. At present, many takeaway foods with high temperature requirements need heat preservation, so it is inevitable to use takeaway bags with heat preservation function. At present, the food packaging bags composed of aluminum foil surface layer and PP cotton have good heat preservation function, but the defect of this kind of bag is that its structure is very fragile. When the food is heavy, it is easy to break, especially at the sewing place, which is easy to be torn when lifted, which is very likely to cause the situation of food spilling. Therefore, each time an additional plastic bag needs to be put outside it, which is very troublesome. Moreover, because of its fragile structure, the plastic bag and the heat preservation bag are mostly thrown away after being used once and are difficult to be recycled again. For this reason, we propose a food packaging bag with heat preservation function. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a food packaging bag with heat preservation function, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A food packaging bag with heat preservation function includes a heat preservation structure and a supporting structure. The supporting structure is fixedly installed on the bottom surface inside the heat preservation structure by pasting. Weight-bearing tension bars are fixedly installed at positions near both sides of the upper surface of the supporting structure. The upper ends of the two weight-bearing tension bars are respectively fixedly connected with a left sealing structure and a right sealing structure. Neodymium magnets are fixedly installed inside the left sealing structure and the right sealing structure.

[0006] Furthermore, the heat preservation structure includes an aluminum foil surface layer and PP cotton, and the PP cotton is fixedly installed on the inner surface of the aluminum foil surface layer.

[0007] Furthermore, the supporting structure includes an outer frame, a weight-bearing net and a first double-sided tape. The weight-bearing net is fixedly installed inside the outer frame, and the first double-sided tape is fixedly pasted at positions near the front and rear surfaces of the lower surface of the outer frame.

[0008] Further, the left sealing structure includes a left plastic sheet, a left rubber sheet, a left double-sided tape, a left handle, and a silica gel seal. Both ends of the left plastic sheet are fixedly connected to the left rubber sheet. The same side surface of the left plastic sheet and the left rubber sheet is fixedly adhered with the left double-sided tape. The upper surface of the left plastic sheet is fixedly installed with the left handle. The other side surface of the left plastic sheet and the left rubber sheet is fixedly installed with the silica gel seal, and there are two silica gel seals.

[0009] Further, the right sealing structure includes a right plastic sheet, a right rubber sheet, a right double-sided tape, a right handle, and a sealing groove. Both ends of the right plastic sheet are fixedly connected to the right rubber sheet. The upper surface of the right plastic sheet is fixedly installed with the right handle. One side surface of the right plastic sheet and the right rubber sheet is fixedly installed with the right double-sided tape. The other side surface of the right plastic sheet and the right rubber sheet is provided with the sealing groove, and there are two sealing grooves.

[0010] Further, the sealing groove and the silica gel seal are arranged on the adjacent surfaces of the right rubber sheet and the left rubber sheet, and the sealing groove and the silica gel seal are arranged in a matching manner. There are a plurality of neodymium magnets in total, and the plurality of neodymium magnets are respectively arranged in the left plastic sheet, the left rubber sheet, the right plastic sheet, and the right rubber sheet, and are evenly arranged and installed in the left plastic sheet, the left rubber sheet, the right plastic sheet, and the right rubber sheet.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the present invention, the food packaging bag greatly improves the load-bearing capacity of its original structure, realizes a food packaging bag with good heat preservation performance and high load capacity, thereby avoiding the loss of food spilled due to breakage. And even if the heat preservation structure is damaged, its internal structure can be removed and re-pasted into a new heat preservation structure for continued use, which is more environmentally friendly and reduces unnecessary waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an overall structural schematic diagram of a food packaging bag with heat preservation function of the present invention;

[0014] Figure 2 is a magnified view of part A in a food packaging bag with heat preservation function of the present invention Figure 1 in;

[0015] Figure 3 is a partial display diagram of a food packaging bag with heat preservation function of the present invention;

[0016] Figure 4 is a magnified view of part B in a food packaging bag with heat preservation function of the present invention Figure 3 in;

[0017] Figure 5 This is a partial cross-sectional view of the left rubber sheet of a food packaging bag with heat preservation function of the utility model.

[0018] In the figure: 1. Heat preservation structure; 101. Aluminum foil surface layer; 102. PP cotton; 2. Support structure; 201. Outer frame; 202. Load-bearing net; 203. First double-sided tape; 3. Load-bearing tension bar; 4. Left sealing structure; 401. Left plastic sheet; 402. Left rubber sheet; 403. Left double-sided tape; 404. Left handle; 405. Silicone seal; 5. Right sealing structure; 501. Right plastic sheet; 502. Right rubber sheet; 503. Right double-sided tape; 504. Right handle; 505. Sealing groove; 6. Neodymium magnet. Specific implementation mode

[0019] In order to make the technical means, creative features, achieved purposes and effects of the utility model easy to understand, the utility model will be further described below in conjunction with specific implementation modes.

[0020] Embodiment 1:

[0021] As Figures 1-5 shown, a food packaging bag with heat preservation function includes a heat preservation structure 1 and a support structure 2. The support structure 2 is fixedly installed by pasting on the bottom surface inside the heat preservation structure 1. Load-bearing tension bars 3 are fixedly installed on both sides of the upper surface of the support structure 2. The upper ends of the two load-bearing tension bars 3 are respectively fixedly connected with a left sealing structure 4 and a right sealing structure 5. Neodymium magnets 6 are fixedly installed inside the left sealing structure 4 and the right sealing structure 5. The magnetic poles of the neodymium magnets 6 on the adjacent sides of the left sealing structure 4 and the right sealing structure 5 are opposite magnetic poles. The attraction of the opposite magnetic poles causes the left rubber sheet 402 and the right rubber sheet 502 to be adsorbed, and the left plastic sheet 401 and the right plastic sheet 501 to be adsorbed;

[0022] The heat preservation structure 1 includes an aluminum foil surface layer 101 and PP cotton 102, and the PP cotton 102 is fixedly installed on the inner surface of the aluminum foil surface layer 101; the supporting structure 2 includes an outer frame 201, a load-bearing net 202 and a first double-sided tape 203. The load-bearing net 202 is fixedly installed inside the outer frame 201, and the first double-sided tape 203 is fixedly pasted on the lower surface of the outer frame 201 near the front and rear surfaces; the left sealing structure 4 includes a left plastic sheet 401, a left rubber sheet 402, a left double-sided tape 403, a left handle 404 and a silica gel seal 405. Both ends of the left plastic sheet 401 are fixedly connected with the left rubber sheet 402. The left double-sided tape 403 is fixedly adhered to the same side surface of the left plastic sheet 401 and the left rubber sheet 402. The left handle 404 is fixedly installed on the upper surface of the left plastic sheet 401. The silica gel seal 405 is fixedly installed on the other side surface of the left plastic sheet 401 and the left rubber sheet 402. There are two silica gel seals 405; the right sealing structure 5 includes a right plastic sheet 501, a right rubber sheet 502, a right double-sided tape 503, a right handle 504 and a sealing groove 505. Both ends of the right plastic sheet 501 are fixedly connected with the right rubber sheet 502. The right handle 504 is fixedly installed on the upper surface of the right plastic sheet 501. The right double-sided tape 503 is fixedly installed on one side surface of the right plastic sheet 501 and the right rubber sheet 502. The sealing groove 505 is opened on the other side surface of the right plastic sheet 501 and the right rubber sheet 502. There are two sealing grooves 505. The left rubber sheet 402 and the right rubber sheet 502 are made of flexible materials, which is mainly to facilitate the easy opening of the upper port of the heat preservation structure 1 without causing damage to the heat preservation structure 1; the sealing groove 505 and the silica gel seal 405 are arranged on the adjacent surfaces of the right rubber sheet 502 and the left rubber sheet 402, and the sealing groove 505 and the silica gel seal 405 are arranged in a matching manner. There are a plurality of neodymium magnets 6 in total. The plurality of neodymium magnets 6 are respectively arranged in the left plastic sheet 401, the left rubber sheet 402, the right plastic sheet 501 and the right rubber sheet 502, and are evenly arranged and installed in the left plastic sheet 401, the left rubber sheet 402, the right plastic sheet 501 and the right rubber sheet 502.

[0023] It should be noted that the present utility model is a food packaging bag with a heat preservation function. During installation, first embed the outer frame 201 into the heat preservation structure 1, then fix the outer frame 201 to the inner bottom surface of the heat preservation structure 1 through the first double-sided tape 203. Next, paste the left plastic sheet 401 to the middle position of one side inside the heat preservation structure 1 through the left double-sided tape 403, and then paste the left rubber sheet 402 along the path of the left plastic sheet 401 to the inner side of the heat preservation structure 1. Similarly, the right plastic sheet 501 and the right rubber sheet 502 can be pasted into the heat preservation structure 1. After pasting, the ends of the left rubber sheet 402 and the corresponding right rubber sheet 502 are in contact. After fixation, the food can be placed on the load-bearing net 202 in the heat preservation structure 1, and then the neodymium magnets 6 inside the right plastic sheet 501 and the right rubber sheet 502 attract the neodymium magnets 6 inside the left plastic sheet 401 and the left rubber sheet 402, so that the silica gel seal 405 is embedded into the corresponding sealing groove 505 for sealing, thus playing a role in rapid packaging. After combining the left handle 404 and the right handle 504, it can be lifted and carried. At this time, the weight of the food is borne by the supporting structure 2, the load-bearing tension rib 3 and the left sealing structure 4, and the heat preservation structure 1 is hardly stressed. Therefore, there will be no situation where the heat preservation structure 1 is torn due to stress, so that the food packaging bag has better and stronger load-bearing capacity.

[0024] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A food packaging bag with heat preservation function, characterized in that: The invention comprises a heat-insulating structure (1) and a supporting structure (2), wherein the supporting structure (2) is glued and fixedly mounted on the bottom surface inside the heat-insulating structure (1), and load-bearing tie bars (3) are fixedly mounted on the upper surface of the supporting structure (2) near both sides, and the upper ends of the two load-bearing tie bars (3) are respectively fixedly connected to a left sealing structure (4) and a right sealing structure (5), and neodymium magnets (6) are fixedly mounted inside the left sealing structure (4) and the right sealing structure (5).

2. A food packaging bag with heat preservation function according to claim 1, characterized in that: The heat-insulating structure (1) comprises an aluminium foil surface layer (101) and PP cotton (102), and the PP cotton (102) is fixedly mounted on the inner surface of the aluminium foil surface layer (101).

3. A food packaging bag with heat preservation function according to claim 2, characterized in that: The supporting structure (2) comprises an outer frame (201), a load-bearing net (202) and a No. 1 double-sided sticker (203); the load-bearing net (202) is fixedly mounted on the inner side of the outer frame (201); and the No. 1 double-sided sticker (203) is fixedly adhered to the lower surface of the outer frame (201) near the front and rear surfaces.

4. A food packaging bag with heat preservation function according to claim 3, characterized in that: The left sealing structure (4) comprises a left plastic plate (401), a left rubber plate (402), a left double-sided sticker (403), a left handle (404) and a silicone seal (405); both ends of the left plastic plate (401) are fixedly connected to the left rubber plate (402); the left double-sided sticker (403) is fixedly adhered to the same side surface of the left plastic plate (401) and the left rubber plate (402); the left handle (404) is fixedly mounted on the upper surface of the left plastic plate (401); the other side surfaces of the left plastic plate (401) and the left rubber plate (402) are fixedly mounted with a silicone seal (405); and two silicone seals (405) are provided.

5. The food packaging bag with heat preservation function according to claim 4, characterized in that: The right sealing structure (5) comprises a right plastic plate (501), a right rubber plate (502), a right double-sided tape (503), a right handle (504) and a sealing groove (505); both ends of the right plastic plate (501) are fixedly connected to the right rubber plate (502); the right handle (504) is fixedly mounted on the upper surface of the right plastic plate (501); the right double-sided tape (503) is fixedly mounted on one side of the right plastic plate (501) and the right rubber plate (502); and the other side of the right plastic plate (501) and the right rubber plate (502) are provided with a sealing groove (505), and two sealing grooves (505) are provided.

6. The food packaging bag with heat preservation function according to claim 5, characterized in that: The sealing groove (505) and the silicone seal (405) are arranged on adjacent surfaces of the right rubber sheet (502) and the left rubber sheet (402), and the sealing groove (505) and the silicone seal (405) are arranged to match each other. A plurality of neodymium magnets (6) are provided in total, and the plurality of neodymium magnets (6) are respectively arranged in the left plastic sheet (401), the left rubber sheet (402), the right plastic sheet (501) and the right rubber sheet (502), and are evenly arranged and installed in the left plastic sheet (401), the left rubber sheet (402), the right plastic sheet (501) and the right rubber sheet (502).