A heavy-duty carton that is easy to fold

By designing a combination of sealing plate, movable card block and return spring in heavy-duty cartons, the problems of cumbersome operation of existing cartons and unenvironmental tape are solved, simple sealing and environmental protection of the box are achieved, and the recycling of sealed parts is supported.

CN222714144UActive Publication Date: 2025-04-04HENAN YIKAI TRADING CO LTD
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Patent Information

Application Number
CN202421380853.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-18
Publication Date
2025-04-04
Estimated Expiration
2034-06-18

AI Technical Summary

Technical Problem

The existing heavy-duty cartons are cumbersome to operate during use, and the tape is not environmentally friendly and difficult to deal with.

Method used

A heavy-duty carton that is easy to fold is designed, using a combination of sealing plate, movable card block and fixed card slot to achieve rapid fixing and stable connection of sealing plates through return springs, avoiding the use of tape.

Benefits of technology

It realizes simple and fast enclosed operation of the box to protect the environment, and can remove the sealed part separately when the box is damaged, so as to achieve recycling and avoid waste of resources.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of cardboard box technology and discloses an easy-to-fold heavy-duty cardboard box, including a box body, two long cover plates, and two short cover plates. A fixing plate is fixedly connected to one side of each of the two long cover plates, and a connecting plate is provided on one side of each of the two fixing plates. A fixing block is fixedly connected to one side of one of the connecting plates near the front and rear, and a sealing plate is fixedly connected to one side of the other connecting plate. Reset grooves are provided at both the front and rear ends of the sealing plate, and movable locking blocks are movably disposed inside each of the two reset grooves. In this utility model, by providing a sealing plate, and with the cooperation of the movable locking blocks and fixing grooves, the sealing plate can be fixed between the two fixing blocks, thereby stably connecting the two long cover plates together, thus completing the sealing operation of the box body. This is simple, convenient, and quick to operate, and also avoids the use of traditional tape, protecting the environment.
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Description

Technical Field

[0001] The utility model relates to the technical field of cartons, in particular to a heavy-duty carton which is easy to fold. Background Art

[0002] With the rapid development of the logistics industry, the demand for heavy-duty packaging boxes is also increasing. As an indispensable part of modern logistics, heavy-duty packaging cartons bear the important responsibilities of packaging, protecting products, and aesthetics. With the rapid development of express delivery, the use of cartons is increasing.

[0003] During use, the existing related heavy-duty cartons usually use tape to fold and seal the top cover. The operation process is cumbersome and time-consuming, and the tape needs to be torn off before opening the carton. The torn tape is inconvenient to handle and easily pollutes the environment, which is not environmentally friendly. Therefore, technical personnel in this field provide an easy-to-fold heavy-duty carton to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the present utility model is to solve the shortcomings of the prior art and to propose a heavy-duty carton that is easy to fold. A sealing plate is provided, and a movable card block and a fixed card slot are provided to fix the sealing plate between two fixed blocks, so that two long cover plates are stably connected together, thereby completing the closing operation of the box body. The operation is simple, convenient and fast, and the use of traditional tape is avoided to protect the environment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heavy-duty carton that is easy to fold, comprising a box body, two long cover plates and two short cover plates, the opposite sides of the two long cover plates are fixedly connected with fixed plates, the opposite sides of the two fixed plates are provided with connecting plates, one side of one of the connecting plates is fixedly connected with a fixed block at the front and rear ends, one side of the other connecting plate is fixedly connected with a sealing plate, the front and rear ends of the sealing plates are provided with reset grooves, the insides of the two reset grooves are movably provided with movable card blocks, and the opposite ends of the two fixed blocks are provided with fixed card grooves;

[0006] A connecting block is fixedly connected to the front and rear of one side of the two fixing plates, a connecting groove is provided at the front and rear of the opposite side of the two connecting plates, a plurality of the lower inner walls of the connecting grooves are provided with a back force groove, a plurality of connecting rods are movably provided inside the back force grooves, a plurality of the upper ends of the connecting rods are fixedly connected to a locking block, and a plurality of the lower ends of the connecting blocks are provided with a locking groove;

[0007] Through the above technical scheme, a sealing plate is provided, and the sealing plate can be fixed between the two fixed blocks in cooperation with the movable card block and the fixed card slot, so that the two long cover plates are stably connected together, thereby completing the closing operation of the box body. The operation is simple, convenient and fast, and it also avoids the use of traditional tapes to protect the environment. By controlling the corresponding locking block to disengage from the locking slot, the sealing part can be removed separately for recycling, thereby avoiding waste of resources and reducing losses.

[0008] Furthermore, a plurality of reset springs are fixedly connected between the two movable clamping blocks and the inner wall of the corresponding reset groove at the opposite end, and the two movable clamping blocks are both clamped and arranged in the corresponding fixed clamping groove;

[0009] Through the above technical solution, a reset spring is provided, so that when the movable card block encounters the fixed card slot, the movable card block can be automatically popped out and inserted into the corresponding fixed card slot via the reset spring, so that the sealing plate can be fixed between the two fixed blocks, and the two long cover plates can be stably connected together to close the box body.

[0010] Furthermore, the plurality of connecting blocks are all snap-fitted in the corresponding connecting grooves, and the plurality of locking blocks are all snap-fitted in the corresponding locking grooves;

[0011] Through the above technical solution, by engaging and setting a plurality of connection blocks in the corresponding connection grooves and engaging and setting a plurality of locking blocks in the corresponding locking grooves, the corresponding connection plate can be fixedly installed on the long cover plate.

[0012] Furthermore, the outer walls of the plurality of connecting rods are movably sleeved with a return spring, and the two ends of the plurality of return springs are respectively fixedly connected to the corresponding return groove and the inner wall of the opposite end of the locking block;

[0013] Through the above technical solution, by providing a return spring and effectively restricting it, the corresponding locking block can be controlled to be quickly and firmly inserted into the locking groove.

[0014] Furthermore, the lower ends of the two connecting rods located on the same side both penetrate the corresponding connecting plates and are fixedly connected with the pulling plates;

[0015] Through the above technical solution, by providing a pull plate, it is convenient for the operator to move the corresponding connecting rod by pulling the pull plate, and then the corresponding locking block can be controlled to disengage from the locking groove, thereby releasing the fixing restriction on the connecting plate, and even when the box body is damaged, the sealing part can be removed separately for recycling.

[0016] Furthermore, the plurality of locking blocks are movably arranged in the corresponding force-return grooves;

[0017] Through the above technical solution, by movably arranging a plurality of locking blocks in the corresponding force-return grooves, the corresponding locking blocks can be retracted into the force-return grooves, thereby facilitating the installation and disassembly of the connecting plate.

[0018] Further, the sealing plate is movably arranged between the two fixed blocks;

[0019] Through the above technical solution, the sealing plate is movably arranged between the two fixing blocks, thereby achieving the fixing operation of the sealing plate and the sealing operation of the box body.

[0020] The utility model has the following beneficial effects:

[0021] 1. The utility model proposes an easy-to-fold heavy-duty carton. When the box needs to be sealed, the sealing plate can be smoothly moved between the two fixed blocks by pressing the movable card block. The corresponding movable card block can be quickly popped out and stably inserted into the corresponding fixed card slot through the reset spring, so that the sealing plate can be fixed between the two fixed blocks, and then the two long cover plates are stably connected together, so that the closing operation of the box can be completed. The operation is simple, convenient and fast, and the use of traditional tape is avoided to protect the environment.

[0022] 2. The utility model proposes a heavy-duty carton that is easy to fold. When the box body is damaged, the corresponding connecting rod can be moved by pulling the pull plate, and then the corresponding locking block can be controlled to disengage from the locking groove, thereby releasing the fixing restriction on the connecting plate, and then the sealing part can be removed separately for recycling, avoiding waste of resources and reducing losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an axonometric diagram of an easy-to-fold heavy-duty carton proposed by the utility model;

[0024] Figure 2 This is a front cross-sectional schematic diagram of an easy-to-fold heavy-duty carton proposed by the utility model;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0026] Figure 4 This is a top view schematic diagram of an easy-to-fold heavy-duty carton proposed by the utility model;

[0027] Figure 5 for Figure 4 A schematic diagram of the structure enlarged at B in the middle;

[0028] Figure 6 The utility model is a side section schematic diagram of an easy-to-fold heavy-duty carton.

[0029] Legend:

[0030] 1. Box body; 2. Long cover plate; 3. Short cover plate; 4. Fixed plate; 5. Connecting plate; 6. Fixed block; 7. Sealing plate; 8. Reset groove; 9. Movable card block; 10. Reset spring; 11. Fixed card slot; 12. Connecting block; 13. Connecting slot; 14. Back force slot; 15. Connecting rod; 16. Locking block; 17. Back force spring; 18. Locking slot; 19. Pull plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the specific implementation of the utility model to clearly and completely describe the technical solutions in the specific implementation of the utility model. Obviously, the specific implementation described is only a part of the specific implementation of the utility model, not all of the specific implementation. Based on the specific implementation of the utility model, all other specific implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-6 A specific implementation method provided by the utility model is as follows: a heavy-duty carton that is easy to fold includes a box body 1, two long cover plates 2 and two short cover plates 3. The opposite sides of the two long cover plates 2 are fixedly connected with a fixing plate 4. The opposite sides of the two fixing plates 4 are provided with a connecting plate 5. One side of one connecting plate 5 is fixedly connected with a fixing block 6 at the front and rear ends. One side of the other connecting plate 5 is fixedly connected with a sealing plate 7. The sealing plate 7 is movably arranged between the two fixing blocks 6. By movably arranging the sealing plate 7 between the two fixing blocks 6, the fixing operation of the sealing plate 7 and the sealing operation of the box body 1 can be realized. The front and rear ends of the sealing plate 7 are provided with Reset groove 8, the inside of the two reset grooves 8 are both movably provided with movable card blocks 9, the opposite ends of the two fixed blocks 6 are both provided with fixed card grooves 11, and a plurality of reset springs 10 are fixedly connected between the two movable card blocks 9 and the inner wall of the opposite end of the corresponding reset groove 8, and the two movable card blocks 9 are both engaged in the corresponding fixed card groove 11. By providing the reset spring 10, when the movable card block 9 encounters the fixed card groove 11, the movable card block 9 can be automatically popped out and stuck in the corresponding fixed card groove 11 through the reset spring 10, so that the sealing plate 7 can be fixed between the two fixed blocks 6, so that the two long cover plates 2 are stably connected together, thereby closing the box body 1;

[0033] The two fixing plates 4 are fixedly connected with connecting blocks 12 at the front and rear of the opposite sides, and the two connecting plates 5 are provided with connecting grooves 13 at the front and rear of the opposite sides. The inner walls of the lower ends of the multiple connecting grooves 13 are provided with force-return grooves 14. The inner parts of the multiple force-return grooves 14 are movably provided with connecting rods 15. The upper ends of the multiple connecting rods 15 are fixedly connected with locking blocks 16. The lower ends of the multiple connecting blocks 12 are provided with locking grooves 18. The multiple locking blocks 16 are movably arranged in the corresponding force-return grooves 14. By movably arranging the multiple locking blocks 16 in the corresponding force-return grooves 14, the corresponding locking blocks 16 can be retracted into the force-return grooves 14, thereby facilitating the installation and disassembly of the connecting plates 5. The multiple connecting blocks 12 are snap-fitted in the corresponding connecting grooves 13, and the multiple locking blocks 16 are snap-fitted in the corresponding locking grooves 18. By snap-fitting the multiple connecting blocks 12 in the corresponding connecting grooves 13, and Multiple locking blocks 16 are engaged in the corresponding locking grooves 18, so that the corresponding connecting plates 5 can be fixedly installed on the long cover plate 2. The outer walls of the multiple connecting rods 15 are movably sleeved with return springs 17, and the two ends of the multiple return springs 17 are respectively fixedly connected to the corresponding return grooves 14 and the inner walls of the opposite ends of the locking blocks 16. By providing the return springs 17 and effectively restricting them, the corresponding locking blocks 16 can be controlled to be quickly and firmly inserted into the locking grooves 18. The lower ends of the two connecting rods 15 on the same side both penetrate the corresponding connecting plates 5 and are fixedly connected with the pull plates 19. By providing the pull plates 19, it is convenient for the operator to move the corresponding connecting rods 15 by pulling the pull plates 19, and then the corresponding locking blocks 16 can be controlled to disengage from the locking grooves 18, thereby releasing the fixing restrictions on the connecting plates 5. Even when the box body 1 is damaged, the sealing parts can be removed separately for recycling.

[0034] Working principle: During use, when it is necessary to seal the box body 1, the sealing plate 7 can be smoothly moved between the two fixed blocks 6 by pressing the movable card block 9. The corresponding movable card block 9 can be quickly popped out and stably inserted into the corresponding fixed card slot 11 through the provided return spring 10, so that the sealing plate 7 can be fixed between the two fixed blocks 6, and then the two long cover plates 2 can be stably connected together, so as to complete the closing operation of the box body 1. The operation is simple, convenient and fast, and the use of traditional tape is avoided to protect the environment. Even if the box body 1 is damaged, the corresponding connecting rod 15 can be moved by pulling the pull plate 19, and then the corresponding locking block 16 can be controlled to disengage from the locking slot 18, thereby releasing the fixing restriction on the connecting plate 5, and then the sealing part can be removed separately for recycling.

[0035] Finally, it should be noted that the above is only a preferred specific implementation method of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned specific implementation methods, those skilled in the art can still modify the technical solutions recorded in the aforementioned specific implementation methods, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heavy-duty carton that is easy to fold, comprising a box body (1), two long cover plates (2) and two short cover plates (3), characterized in that: The two long cover plates (2) are fixedly connected to a fixing plate (4) on one side thereof, and the two fixing plates (4) are provided with a connecting plate (5) on one side thereof, and a fixing block (6) is fixedly connected to one side of one of the connecting plates (5) near the front and rear ends, and a sealing plate (7) is fixedly connected to one side of the other connecting plate (5), and the sealing plate (7) is provided with a reset groove (8) at the front and rear ends, and movable clamping blocks (9) are movably provided inside the two reset grooves (8), and the two fixing blocks (6) are provided with a fixed clamping groove (11) at the opposite ends thereof; A connecting block (12) is fixedly connected to the front and rear of the opposite side of the two fixing plates (4); a connecting groove (13) is provided at the front and rear of the opposite side of the two connecting plates (5); a plurality of the connecting grooves (13) are provided with a rebound groove (14) on the inner wall at the lower end; a plurality of connecting rods (15) are movably provided inside the rebound grooves (14); a plurality of the connecting rods (15) are fixedly connected to the upper ends of the plurality of connecting rods (15); and a locking groove (18) is provided at the lower ends of the plurality of connecting blocks (12).

2. The easy-to-fold heavy-duty carton according to claim 1, characterized in that: A plurality of reset springs (10) are fixedly connected between the two movable clamping blocks (9) and the inner wall of the corresponding reset groove (8) at the opposite end, and the two movable clamping blocks (9) are both clamped and arranged in the corresponding fixed clamping groove (11).

3. The easy-to-fold heavy-duty carton according to claim 1, characterized in that: The plurality of connection blocks (12) are all snap-fitted in the corresponding connection slots (13), and the plurality of locking blocks (16) are all snap-fitted in the corresponding locking slots (18).

4. The easy-to-fold heavy-duty carton according to claim 1, characterized in that: The outer walls of the plurality of connecting rods (15) are movably sleeved with a return spring (17), and the two ends of the plurality of return springs (17) are respectively fixedly connected to the inner wall of the corresponding return groove (14) and the opposite end of the locking block (16).

5. The easy-to-fold heavy-duty carton according to claim 1, characterized in that: The lower ends of the two connecting rods (15) located on the same side both penetrate the corresponding connecting plate (5) and are fixedly connected to a pull plate (19).

6. The easy-to-fold heavy-duty carton according to claim 1, characterized in that: The plurality of locking blocks (16) are movably arranged in corresponding force-return grooves (14).

7. The easy-to-fold heavy-duty carton according to claim 1, characterized in that: The sealing plate (7) is movably arranged between the two fixed blocks (6).