A pull-up carton

Abstract

The utility model relates to carton technical field provides a kind of lifting type carton, including carton body, the bottom end of the carton body is fixed with protection structure, the top of the carton body is provided with cover, the edge position of the bottom of the cover is provided with limiting structure, the limiting structure includes limiting slot, connecting plate, first clamping block and second clamping block.The utility model is provided with limiting structure, limiting slot and connecting plate, so that cover can be accurately aligned with carton body when closing, avoid misplacement, make appearance neat and beautiful, under the action of first clamping block and second clamping block mutually clamping, a certain pre-tightening force and friction are generated by clamping connection, in the process of carrying, transportation or stacking, it can effectively prevent that lid is accidentally opened or displaced due to vibration, inclination, ensure the sealing and safety of goods in the box, realize the device has the function of convenient fastening cover, improve the stability of the lifting type carton when using.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box technology, and in particular to a pull-out cardboard box. Background Technology

[0002] Patent CN 208022010U discloses a portable pull-out cardboard box, comprising a box body, a lid on the top of the box body with a notepad on the upper surface of the lid, rivet assemblies on both sides of the box body, polyester rope straps connected to the rivet assemblies via rope buckles, a grip handle on the top of the rivet assemblies, a paper tool holder on the front of the box body, corner protectors at the four corners of the bottom of the box body, feet at the bottom of the corner protectors for mounting wheels, moisture-proof paper covering the four sides of the inside of the box body, a support frame on the inside of the box body, and a cardboard sheet at the bottom of the inside of the box body. This portable pull-out cardboard box uses detachable wheels; when needed, the wheels can be installed at the bottom of the feet and the polyester rope straps pulled; when not in use, the wheels can be removed to prevent slippage. When moving the box, the grip handles on both sides of the box body can be used for lifting. Although the aforementioned easy-to-move pull-out cardboard boxes can be moved by gripping handles on both sides of the box, the lid of the box is prone to falling off during the movement, affecting the convenience of using the cardboard box. Therefore, it is necessary to design a pull-out cardboard box. Utility Model Content

[0003] The purpose of this invention is to provide a pull-out cardboard box to overcome the shortcomings of existing comparative solutions.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a pull-out cardboard box, including a cardboard box body; The bottom of the carton body is fixed with a protective structure; The top of the carton body is provided with a cover, and the bottom edge of the cover is provided with a limiting structure. The limiting structure includes a limiting groove, a connecting plate, a first locking block and a second locking block. The limiting groove is opened at the bottom edge of the cover. The connecting plate is fixed to the top of the carton body. The first locking block is evenly fixed on the inner wall of the cover at the bottom of the limiting groove. The second locking block is evenly fixed on the outer wall at the bottom of the connecting plate. The outer walls on both sides of the top of the carton body are fixed with lifting structures.

[0005] Furthermore, the protective structure includes an adhesive layer, a reinforcing layer, and a wear-resistant layer. The adhesive layer is fixed to the bottom of the carton body, the bottom of the adhesive layer is fixed to the reinforcing layer, and the bottom of the reinforcing layer is fixed to the wear-resistant layer.

[0006] Furthermore, the reinforcing layer is a corrugated cardboard layer, and the wear-resistant layer is a high-density polyethylene sheet layer.

[0007] Furthermore, the lifting structure includes a mounting base, a mounting pin, a connecting rod, and a handle. The mounting base is fixed to the outer walls on both sides of the top of the carton body. A connecting rod is provided on the top of each mounting base. A mounting pin passes through one side of the interior of each mounting base. A handle is hinged to the top of each connecting rod.

[0008] Furthermore, one end of each mounting pin passes through the mounting base and extends into the interior of the connecting rod.

[0009] Furthermore, the first card block and the connecting plate are engaged and connected via the second card block.

[0010] Furthermore, the first card blocks are evenly distributed on the inner wall of the cover, and the second card blocks are evenly distributed on the outer wall of the connecting plate.

[0011] The advantages of the pull-out cardboard box provided by this utility model are as follows: By setting a limiting structure, through the limiting groove and connecting plate, the lid can be accurately aligned with the carton body when closed, avoiding misalignment and making the appearance neat and beautiful. Under the action of the first and second locking blocks interlocking with each other, a certain pre-tightening force and friction are generated through the interlocking connection. During handling, transportation or stacking, it can effectively prevent the lid from being accidentally opened or shifted due to vibration or tilting, ensuring the sealing and safety of the contents of the box. This device has the function of facilitating the fastening of the lid and improving the stability of the pull-up carton during use. By incorporating a protective structure, the wear-resistant layer is made of high-density polyethylene sheet, which has extremely high wear resistance and toughness, enhancing the bottom's wear resistance and effectively resisting friction between the carton body and the ground during handling and dragging, greatly extending the carton's service life. The reinforcing layer is made of corrugated cardboard, providing excellent compressive strength and cushioning performance, protecting the contents of the carton from damage when subjected to external impacts or stacking. The high-density polyethylene sheet itself is completely waterproof, providing a reliable moisture barrier for the bottom of the carton body, preventing ground moisture from entering the carton. This device enables convenient protection of the bottom of the carton body, improving the service life of the pull-out carton. By incorporating a lifting mechanism and a handle, the device provides users with a clear and secure point of leverage, making it easier and more convenient to move heavy boxes. This avoids the inconvenience and hand injuries caused by manually gripping the box. The handle, with its hinged design, can be lowered and placed on the side wall of the box, thus not occupying extra space during transportation and storage stacking, and preventing it from snagging with other boxes. The mounting base and mounting pins allow for easy removal and replacement of the connecting rod and handle as a whole, enabling the device to easily lift the carton body and improving the convenience and applicability of the pull-out carton in use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model; Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention; Figure 5 This is a top view cross-sectional structural diagram of the present invention; Figure 6 This is a top-view cross-sectional three-dimensional structural diagram of the present invention.

[0013] The following are the annotations in the diagram: 1. Carton body; 2. Protective structure; 21. Adhesive layer; 22. Reinforcing layer; 23. Wear-resistant layer; 3. Lifting structure; 31. Mounting base; 32. Mounting pin; 33. Connecting rod; 34. Handle; 4. Cover; 5. Limiting structure; 51. Limiting groove; 52. Connecting plate; 53. First locking block; 54. Second locking block. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-6 The present invention provides a pull-out cardboard box, including a cardboard box body 1.

[0016] Reference Figure 1 , Figure 2 , Figure 4 and Figure 6The bottom of the carton body 1 is fixed with a protective structure 2. The protective structure 2 includes an adhesive layer 21, a reinforcing layer 22 and a wear-resistant layer 23. The adhesive layer 21 is fixed to the bottom of the carton body 1. The bottom of the adhesive layer 21 is fixed with a reinforcing layer 22. The bottom of the reinforcing layer 22 is fixed with a wear-resistant layer 23. The reinforcing layer 22 is a corrugated cardboard layer and the wear-resistant layer 23 is a high-density polyethylene sheet layer.

[0017] The adhesive layer 21 is fixed to the carton body 1, providing an initial connection. The reinforcing layer 22 is a corrugated cardboard layer located in the middle, which can distribute the weight of the contents inside the carton and external impacts. Its unique corrugated structure disperses and dissipates vertical pressure. The abrasion-resistant layer 23 is a high-density polyethylene sheet layer, which is in direct contact with the ground on the outermost layer. Utilizing its smooth, hard, and abrasion-resistant properties, it ensures that the carton moves smoothly and is not easily worn when pushed or pulled. When encountering water stains, the HDPE layer can completely block moisture.

[0018] Reference Figures 2-6 The top of the carton body 1 is provided with a cover 4, and the bottom edge of the cover 4 is provided with a limiting structure 5. The limiting structure 5 includes a limiting groove 51, a connecting plate 52, a first locking block 53 and a second locking block 54. The limiting groove 51 is opened at the bottom edge of the cover 4. The connecting plate 52 is fixed to the top of the carton body 1. The first locking block 53 is evenly fixed on the inner wall of the cover 4 at the bottom of the limiting groove 51. The second locking block 54 is evenly fixed on the outer wall at the bottom of the connecting plate 52. The first locking block 53 and the connecting plate 52 are engaged and connected by the second locking block 54. The first locking block 53 is evenly distributed on the inner wall of the cover 4, and the second locking block 54 is evenly distributed on the outer wall of the connecting plate 52.

[0019] When closing the box lid, the lid 4 is engaged with the outer side of the connecting plate 52 at the top of the carton body 1 via the limiting groove 51. Then, the lid 4 is pressed down so that the first locking block 53 on the inner wall of the lid 4 is aligned with the second locking block 54 on the outer wall of the connecting plate 52. If you continue to press down, the second locking block 54 will slide in and be tightly locked at the bottom of the first locking block 53. The locking is achieved by the elasticity of the paper and the interference fit of the structure. When opening the lid 4, a certain pulling force needs to be applied to overcome the friction of the locking structure so that the second locking block 54 is disengaged from the bottom of the first locking block 53, and the lid 4 can be opened.

[0020] Reference Figure 1 , Figure 2 and Figures 4-6Lifting structures 3 are fixed on the outer walls of both sides of the top of the carton body 1. The lifting structure 3 includes a mounting base 31, a mounting pin 32, a connecting rod 33 and a handle 34. The mounting base 31 is fixed on the outer walls of both sides of the top of the carton body 1. A connecting rod 33 is provided on the top of the mounting base 31. A mounting pin 32 passes through one side of the interior of the mounting base 31. A handle 34 is hinged to the top of the connecting rod 33. One end of the mounting pin 32 passes through the mounting base 31 and extends into the interior of the connecting rod 33.

[0021] When it is necessary to move the carton, the user can lift the hinged handle 34 from the flat position to make it easier to lift the carton body 1 upwards. During installation, the connecting rod 33 is inserted into the inside of the mounting base 31, and then the connecting rod 33 and the mounting base 31 are fixed together by the mounting pin 32. Then, the two sides of the handle 34 are pried open to the sides. The handle 34 has a certain degree of elasticity, and the connecting shaft on the inner wall of the two sides of the handle 34 can be inserted into the insertion hole at the top of the connecting rod 33.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pull-out cardboard box, comprising a box body (1); Its features are: The bottom end of the carton body (1) is fixed with a protective structure (2). The top of the carton body (1) is provided with a cover (4), and the bottom edge of the cover (4) is provided with a limiting structure (5). The limiting structure (5) includes a limiting groove (51), a connecting plate (52), a first locking block (53) and a second locking block (54). The limiting groove (51) is opened at the bottom edge of the cover (4). The connecting plate (52) is fixed to the top of the carton body (1). The first locking block (53) is evenly fixed on the inner wall of the cover (4) at the bottom of the limiting groove (51). The second locking block (54) is evenly fixed on the outer wall at the bottom of the connecting plate (52). The outer walls on both sides of the top of the carton body (1) are fixed with lifting structures (3).

2. A pull-out cardboard box according to claim 1, characterized in that: The protective structure (2) includes an adhesive layer (21), a reinforcing layer (22) and a wear-resistant layer (23). The adhesive layer (21) is fixed to the bottom of the carton body (1). The bottom of the adhesive layer (21) is fixed with the reinforcing layer (22). The bottom of the reinforcing layer (22) is fixed with the wear-resistant layer (23).

3. A pull-out cardboard box according to claim 2, characterized in that: The reinforcing layer (22) is a corrugated cardboard layer, and the wear-resistant layer (23) is a high-density polyethylene sheet layer.

4. A pull-out cardboard box according to claim 1, characterized in that: The lifting structure (3) includes a mounting base (31), a mounting pin (32), a connecting rod (33), and a handle (34). The mounting base (31) is fixed to the outer wall on both sides of the top of the carton body (1). A connecting rod (33) is provided on the top of each mounting base (31). A mounting pin (32) passes through one side of the interior of each mounting base (31). A handle (34) is hinged to the top of each connecting rod (33).

5. A pull-out cardboard box according to claim 4, characterized in that: One end of each mounting pin (32) passes through the mounting base (31) and extends into the interior of the connecting rod (33).

6. A pull-out cardboard box according to claim 1, characterized in that: The first card block (53) and the connecting plate (52) are engaged and connected by the second card block (54).

7. A pull-out cardboard box according to claim 1, characterized in that: The first card block (53) is evenly distributed on the inner wall of the cover (4), and the second card block (54) is evenly distributed on the outer wall of the connecting plate (52).

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