Antibacterial carton for food packaging

By fixing plastic film on the inner wall of the carton, sticking polyethylene lining on the outside and setting up a fresh-keeping tube, the problem of the inner wall of the food packaging carton getting damp and rotting is solved, the waterproof and moisture-proof and fresh-keeping effects are achieved, and the wear resistance and usage strength of the carton are improved.

CN223328093UActive Publication Date: 2025-09-12SHISHI BAILONG PACKAGING CO LTD
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Patent Information

Application Number
CN202422253578.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-14
Publication Date
2025-09-12
Estimated Expiration
2034-09-14

AI Technical Summary

Technical Problem

The inner wall of existing food packaging cartons is easily corroded by food moisture, causing moisture and rot, affecting food safety and the durability of the cartons.

Method used

A plastic film is fixed to the inner wall of the carton, a polyethylene lining is pasted on the outside, and a fresh-keeping tube is set inside the carton. It is preserved through threaded connection and dry ice blocks, and is combined with a sealing rubber strip and elastic rod design to improve airtightness and stability.

Benefits of technology

It effectively prevents water vapor erosion, keeps the inner wall of the carton dry, improves food preservation effect, and enhances the wear resistance and usage strength of the carton.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cartons, and discloses an antibacterial carton for food packaging, which comprises a carton, a plastic film is fixedly connected to the inner wall of the carton, a polyethylene lining plate is adhered to the outer side of the carton, a fixed seat is fixedly connected to the inner wall of the bottom end of the carton, a fresh-keeping cylinder is arranged above the fixed seat, and a plastic film is arranged on the plastic film. A threaded column is fixedly connected to the bottom of the fresh-keeping cylinder, a threaded groove is formed in the inner wall of the top end of the fixing base, and the threaded column is in threaded connection to the inner wall of the threaded groove. The plastic film improves the waterproof and damp-proof effects of the inner wall of the carton and prevents water vapor of food from eroding the carton to damage the carton and affect use of the carton, the polyethylene lining plate can improve the wear-resisting effect of the outer portion of the carton, and the fresh-keeping barrel can be in threaded connection with the interior of the fixing base through the threaded column to guarantee installation stability.
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Description

Technical Field

[0001] The utility model relates to the technical field of cartons, in particular to an antibacterial carton used for food packaging. Background Art

[0002] A carton is a box made of cardboard, usually used for packaging and transporting items. Cartons are lightweight, foldable, easy to stack and recyclable, so they are widely used in various industries and fields. Cartons are usually made of multiple layers of cardboard, the inner layer is usually corrugated cardboard with higher strength, and the outer layer is smooth kraft cardboard to increase the strength and durability of the carton.

[0003] In the prior art, during the use of cartons for food packaging, the inner wall of the cartons is easily corroded by water vapor from food, causing the inner wall of the cartons to become damp and rotten, and causing bacteria to easily breed inside the cartons, which not only affects the safety of food storage, but also affects the strength of the cartons. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that the inner wall of the carton is easily corroded by food moisture, causing the inner wall of the carton to become damp and rot, and causing bacteria to easily breed inside the carton, which not only affects the safety of food storage, but also affects the usability of the carton. An antibacterial carton for food packaging is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An antibacterial carton for food packaging comprises a carton, wherein a plastic film is fixedly connected to the inner wall of the carton, a polyethylene liner is adhered to the outer side of the carton, a fixing seat is fixedly connected to the inner wall of the bottom end of the carton, a fresh-keeping cylinder is provided above the fixing seat, a threaded column is fixedly connected to the bottom of the fresh-keeping cylinder, a threaded groove is provided on the inner wall of the top end of the fixing seat, the threaded column is threadedly connected to the inner wall of the threaded groove, an opening is provided on the inner wall of the bottom end of the fresh-keeping cylinder, and a fixing frame is fixedly connected to the inner wall of the fresh-keeping cylinder.

[0007] Preferably, a sealing rubber strip is fixedly connected to the inner wall of the box board of the carton, a strip groove is opened on the inner wall of the carton located at the sealing rubber strip, and the sealing rubber strip is inserted into the inner wall of the strip groove.

[0008] Preferably, a cover is placed on the top of the fresh-keeping cylinder, a plug is fixedly connected to the bottom of the cover, the plug is plugged into the top inner wall of the fresh-keeping cylinder, and a handle is fixedly connected to the top inner wall of the cover.

[0009] Preferably, a cavity is formed on the inner wall of the plug, an elastic rod is fixedly connected to the inner wall of the plug in the cavity, an insert is fixedly connected to the end of the elastic rod, a slot is formed on the inner wall of the fresh-keeping tube, and the insert is plugged into the inner wall of the slot.

[0010] Preferably, a drawstring is fixedly connected to the side wall of the insert block, and one end of the drawstring, which is away from the insert block, extends to the interior of the cover plate and is fixedly connected to a pull ring.

[0011] Preferably, a sealing ring is sleeved on the side wall of the bottom end of the plug, and the side wall of the sealing ring is pressed tightly against the inner wall of the fresh-keeping cylinder.

[0012] Compared with the prior art, the present invention provides an antibacterial carton for food packaging, which has the following beneficial effects:

[0013] 1. This antibacterial carton for food packaging uses plastic film to improve the waterproof and moisture-proof effect of the inner wall of the carton, preventing water vapor from eroding the carton and causing damage to the carton, which affects the use of the carton. The polyethylene liner can improve the wear resistance of the carton's exterior. The fresh-keeping tube can be threadedly connected to the inside of the fixing base through a threaded column to ensure installation stability.

[0014] 2. The antibacterial carton for food packaging fills the interior of the preservation tube with dry ice blocks, which vaporizes the dry ice blocks and releases cold air from the opening of the preservation tube through a fixed frame, thereby improving the food preservation effect and preventing food from rotting and decaying and affecting the carton.

[0015] 3. The antibacterial carton for food packaging uses an elastic rod to push the plug to extend into the inside of the slot, thereby improving the stability of the cover and the plug on the top of the fresh-keeping tube. Pulling the pull ring and the pull rope moves the plug to retract into the inside of the cavity, making it easier to remove the plug and the cover. The sealing ring can improve the tightness of the connection between the plug and the fresh-keeping tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of an antibacterial carton for food packaging proposed by the present invention;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the partial A in the middle part;

[0018] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part B in the middle.

[0019] In the figure: 1 cardboard box, 2 plastic film, 3 polyethylene liner, 4 fixing base, 5 fresh-keeping tube, 6 threaded column, 7 fixing frame, 8 sealing rubber strip, 9 cover, 10 plug, 11 handle, 12 elastic rod, 13 plug, 14 drawstring, 15 pull ring, 16 sealing ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-3 An antibacterial carton for food packaging includes a carton 1, a plastic film 2 is fixedly connected to the inner wall of the carton 1, a polyethylene liner 3 is pasted on the outside of the carton 1, a fixing seat 4 is fixedly connected to the inner wall of the bottom end of the carton 1, a fresh-keeping tube 5 is provided above the fixing seat 4, a threaded column 6 is fixedly connected to the bottom of the fresh-keeping tube 5, a threaded groove is opened on the inner wall of the top end of the fixing seat 4, the threaded column 6 is threadedly connected to the inner wall of the threaded groove, an opening is opened on the inner wall of the bottom end of the fresh-keeping tube 5, and a fixing frame 7 is fixedly connected to the inner wall of the fresh-keeping tube 5.

[0022] A sealing rubber strip 8 is fixedly connected to the inner wall of the carton 1 located on the box board. A strip groove is opened on the inner wall of the carton 1 located on the sealing rubber strip 8, and the sealing rubber strip 8 is inserted into the inner wall of the strip groove.

[0023] A cover plate 9 is placed on the top of the fresh-keeping cylinder 5 , a plug 10 is fixedly connected to the bottom of the cover plate 9 , the plug 10 is plugged into the top inner wall of the fresh-keeping cylinder 5 , and a handle 11 is fixedly connected to the top inner wall of the cover plate 9 .

[0024] During use, the plastic film 2 can improve the waterproof and moisture-proof effect of the inner wall of the carton 1, and can prevent the water vapor of the food from corroding the carton 1 and causing damage to the carton 1, affecting the use of the carton 1. The polyethylene liner 3 can improve the wear resistance of the outside of the carton 1. The fresh-keeping tube 5 can be threadedly connected to the inside of the fixing seat 4 through the threaded column 6 to ensure the stability of the installation. During long-distance transportation, the inside of the fresh-keeping tube 5 can be filled with dry ice cubes, so that the dry ice cubes vaporize and the cold air flows out from the opening of the fresh-keeping tube 5 through the fixing frame 7, which can improve the preservation effect of food and prevent the carton 1 from being affected by the rotting and corruption of food. The sealing rubber strip 8 can improve the sealing of the carton 1 after it is closed, and the plug 10 and the cover plate 9 can ensure the airtightness of the top of the fresh-keeping tube 5.

[0025] In order to improve the stability of the cover plate 9 and the plug 10 placed on the top of the fresh-keeping cylinder 5, Figure 1-3As shown, a cavity is provided on the inner wall of the plug 10, and an elastic rod 12 is fixedly connected to the inner wall of the plug 10 located in the cavity. An insert 13 is fixedly connected to the end of the elastic rod 12, and a slot is provided on the inner wall of the fresh-keeping tube 5, and the insert 13 is inserted into the inner wall of the slot.

[0026] A pull rope 14 is fixedly connected to the side wall of the plug 13. The end of the pull rope 14 facing away from the plug 13 extends to the inside of the cover 9 and is fixedly connected to a pull ring 15. A sealing ring 16 is sleeved on the side wall of the bottom end of the plug 10. The side wall of the sealing ring 16 is pressed tightly against the inner wall of the preservation tube 5.

[0027] The elastic rod 12 can push the plug 13 to extend into the inside of the slot, which can improve the stability of the cover 9 and the plug 10 placed on the top of the fresh-keeping tube 5. Pulling the pull ring 15 can pull the pull rope 14 to move, so that the plug 13 is retracted to the inside of the cavity, making it easier to remove the plug 10 and the cover 9. The sealing ring 16 can improve the tightness of the connection between the plug 10 and the fresh-keeping tube 5.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An antibacterial carton for food packaging, comprising a carton (1), characterized in that: The inner wall of the carton (1) is fixedly connected with a plastic film (2), the outer side of the carton (1) is pasted with a polyethylene lining (3), the inner wall of the bottom end of the carton (1) is fixedly connected with a fixing seat (4), a fresh-keeping cylinder (5) is provided above the fixing seat (4), the bottom of the fresh-keeping cylinder (5) is fixedly connected with a threaded column (6), the top inner wall of the fixing seat (4) is provided with a threaded groove, the threaded column (6) is threadedly connected to the inner wall of the threaded groove, the inner wall of the bottom end of the fresh-keeping cylinder (5) is provided with an opening, and the inner wall of the fresh-keeping cylinder (5) is fixedly connected with a fixing frame (7).

2. The antibacterial carton for food packaging according to claim 1, characterized in that: The carton (1) is fixedly connected to a sealing rubber strip (8) on the inner wall of the box board, and a strip groove is opened on the inner wall of the carton (1) on the sealing rubber strip (8), and the sealing rubber strip (8) is inserted into the inner wall of the strip groove.

3. The antibacterial carton for food packaging according to claim 1, characterized in that: A cover plate (9) is placed on the top of the fresh-keeping cylinder (5), a plug (10) is fixedly connected to the bottom of the cover plate (9), the plug (10) is plugged into the inner wall of the top of the fresh-keeping cylinder (5), and a handle (11) is fixedly connected to the inner wall of the top of the cover plate (9).

4. The antibacterial carton for food packaging according to claim 3, characterized in that: The inner wall of the plug (10) is provided with a cavity, the inner wall of the plug (10) located in the cavity is fixedly connected to an elastic rod (12), the end of the elastic rod (12) is fixedly connected to an insert (13), the inner wall of the fresh-keeping tube (5) is provided with a slot, and the insert (13) is inserted into the inner wall of the slot.

5. The antibacterial carton for food packaging according to claim 4, characterized in that: A drawstring (14) is fixedly connected to the side wall of the insert block (13), and one end of the drawstring (14) facing away from the insert block (13) extends to the interior of the cover plate (9) and is fixedly connected to a draw ring (15).

6. The antibacterial carton for food packaging according to claim 3, characterized in that: The bottom side wall of the plug (10) is sleeved with a sealing ring (16), and the side wall of the sealing ring (16) is pressed against the inner wall of the fresh-keeping cylinder (5).