A side opening carton structure

Abstract

The utility model relates to paper box technical field discloses a side open formula paper box structure, including nested setting outside box and inside box, outside box inner wall bottom is equipped with two first recess, and inside box bottom is equipped with second recess correspondingly, the middle part of inside box side plate is equipped with buckle groove, and the inside hides "n" shape third recess, and the linkage both sides limiting block of connecting rod is equipped in the groove, and spring is connected in the lower end of connecting rod and provides the down pressure. When locking, the limiting block is clamped into the closed space formed by first recess and second recess, when unlocking, the single finger presses the upper end of connecting rod at buckle groove, drives the limiting block to compress spring and moves up and separates from recess, realizes the inside box single -hand pull, and the utility model discloses reach the locking effect of outside box and inside box through above -mentioned setting, makes the utility model discloses inside box not easy to slide out in transportation.

Description

Technical Field

[0001] This utility model relates to the field of cardboard boxes, specifically a side-opening cardboard box structure. Background Technology

[0002] In the packaging industry, cardboard boxes, as commonly used transportation and storage containers, are designed with core requirements in mind, such as easy opening, secure storage, and safe transport. Traditional cardboard boxes typically have a top opening and are often sealed with disposable tape, making repeated opening and closing inconvenient. Furthermore, when placed at a height, retrieving the contents requires moving the entire box, which is labor-intensive. Existing side-opening cardboard boxes usually use a single-layer body with a side-opening structure (such as a flip-top or drawer type), lacking locking mechanisms. During transport, vibrations can easily cause the inner box to slip out, damaging the contents. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a side-opening cardboard box structure to solve the problems of difficulty in retrieving items when the cardboard box is placed at a high position and the lack of a locking device.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a side-opening carton structure, including an outer box body, the outer box body being hollow and open on one side, an inner box body being provided inside the outer box body, and two first grooves being provided on the bottom side of the inner wall of the outer box body near the opening.

[0005] The internal housing is hollow and open at the top. Two second grooves are provided at the bottom of the internal housing, corresponding to the first groove. These second grooves are used to accommodate the limiting blocks. A snap-fit ​​groove is provided in the middle of the side panel of the internal housing, which is at the same position as the opening of the external housing. An "n"-shaped third groove is provided inside the side panel of the internal housing, which is at the same position as the opening of the external housing. An "n"-shaped connecting rod is provided inside the third groove. The lower end of the connecting rod is fixedly connected to the top of the two limiting blocks. A spring is sleeved on the lower end of the connecting rod, with the lower end of the spring contacting the top surface of the limiting block, and the upper end of the spring being limited to the top surface of the second groove. The lower end of the third groove communicates with the two second grooves, and the upper end of the third groove passes through the snap-fit ​​groove.

[0006] With the inner box placed inside the outer box, the limiting block engages within the space formed by the first and second grooves.

[0007] Preferably, a lid is provided on one side of the opening of the external housing.

[0008] Preferably, the lid includes a connecting plate, one end of the lid is fixedly connected to the box body, and the other end is fixedly connected to the connecting plate. The inner side of the connecting plate is provided with a hook and loop fastener, and the outer side of the box body is provided with a hook and loop fastener rough surface on the side corresponding to the hook and loop fastener.

[0009] Preferably, the top of the outer casing is provided with a lifting strap.

[0010] Preferably, the limiting block is a trapezoidal limiting block with a slope at the bottom.

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

[0012] By pulling the connecting rod through the latch, the two limiting blocks can be simultaneously disengaged from the first groove, enabling rapid separation of the inner and outer boxes. Compared to traditional adhesive tape or multi-clip locking structures, this design requires only one hand to operate, making it particularly suitable for high-frequency unpacking scenarios. The spring preload ensures that the limiting blocks automatically engage with the first groove after the connecting rod is released, forming a stable mechanical lock and preventing the inner box from slipping out due to vibration during transportation. The Velcro closures on the lid and outer box further protect the inner box, providing cushioning during violent shaking and preventing the inner box from slipping out. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0015] Figure 3 This is a bottom view of the disassembled structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of this utility model cut out.

[0017] Figure 5 This utility model Figure 4 Enlarged cut diagram at point A.

[0018] The components are: 1. Outer box; 101. Velcro surface; 102. First groove; 2. Inner box; 201. Second groove; 202. Third groove; 3. Box lid; 4. Connecting plate; 401. Velcro hook surface; 5. Buckle groove; 6. Lifting strap; 7. Limiting block; 8. Connecting rod; 9. Spring. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1 - Figure 5The present invention provides a technical solution: including an outer box 1, which is a hollow box with an opening on one side, and an inner box 2 is provided inside the outer box 1. Two first grooves 102 are provided on the bottom of the inner wall of the outer box 1 near the opening.

[0021] The inner box 2 is a hollow box with an open top. The bottom of the inner box 2 is provided with two second grooves 201 corresponding to the first groove 102. The second grooves 201 are used to accommodate the limiting block 7. The side plate of the inner box 2 with the same opening position as the outer box 1 is provided with a buckle groove 5 in the middle. The side plate of the inner box 2 with the same opening position as the outer box 1 is provided with an "n"-shaped third groove 202. The third groove 202 is provided with an "n"-shaped connecting rod 8. The lower end of the connecting rod 8 is fixedly connected to the top of the two limiting blocks 7 respectively. The spring 9 is sleeved on the lower end of the connecting rod 8. The lower end of the spring 9 contacts the top surface of the limiting block 7. The upper end of the spring 9 is limited to the top surface of the second groove 201. The lower end of the third groove 202 is connected to the two second grooves 201 respectively. The upper end of the third groove 202 is connected through the buckle groove 5.

[0022] With the inner box 2 placed inside the outer box 1, the limiting block 7 is engaged in the space formed by the first groove 102 and the second groove 201.

[0023] With the above technical solution, by pulling the connecting rod 8 through the buckle 5, the two limiting blocks 7 can be simultaneously driven to disengage from the first groove 102, realizing the rapid separation of the inner and outer boxes. The preload of the spring 9 ensures that the limiting block 7 automatically engages in the first groove 102 after the connecting rod 8 is released, forming a stable mechanical lock.

[0024] This utility model provides a technical solution: a box cover 3 is provided on one side of the opening of the outer box 1. The box cover 3 includes a connecting plate 4. One end of the box cover 3 is fixedly connected to the box 1, and the other end is fixedly connected to the connecting plate 4. A hook and loop fastener surface 401 is provided on the inner side of the connecting plate 4. A hook and loop fastener surface 101 is provided on the side of the outer box 1 corresponding to the hook and loop fastener surface 401.

[0025] Through the above technical solution, the Velcro fasteners on the lid 3 and the outer box 1 further protect the inner box 2 and prevent the inner box 2 from sliding out due to external causes such as violent shaking.

[0026] This utility model provides a technical solution: the limiting block 7 is a trapezoidal limiting block with a slope at the bottom;

[0027] With the above technical solution, when the inner box 2 is pulled out, the connecting rod 8 is lifted slightly by inserting the finger into the buckle groove 5, so that the bottom slope of the limiting block 7 contacts the edge of the top of the first groove 102 near the opening of the outer box 1, and the inner box 2 can be pulled out.

[0028] Working principle: When the inner box 2 is placed inside the outer box 1, the limiting block 7 is engaged in the space formed by the first groove 102 and the second groove 201. At this time, the relative displacement between the inner box and the outer box is completely restricted. The lid 3 is closed on the opening side of the outer box 1. The hook and loop fastener 401 and the loop fastener 101 are tightly attached to each other, further protecting the inner box 2.

[0029] To pull out the inner box 2, open the cover 3, insert your finger into the latch 5, and slightly lift the connecting rod 8 so that the bottom slope of the limiting block 7 contacts the edge of the top of the first groove 102 near the opening of the outer box 1. To push the inner box 2 back into the outer box 1, first contact the bottom of the limiting block 7 with the bottom of the inner wall of the outer box 1, and then push the inner box 2 in completely. When the inner box 2 is fully pushed in, the spring 9 is released the instant the first groove 102 aligns with the second groove 201, pushing the limiting block 7 to automatically spring into the locking position.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A side-opening cardboard box structure, characterized in that: It includes an outer box (1), which is a hollow box with an opening on one side. An inner box (2) is provided inside the outer box (1). Two first grooves (102) are provided on the bottom of the inner wall of the outer box (1) near the opening. The inner box (2) is a hollow box with an open top. Two second grooves (201) are provided at the bottom of the inner box (2) corresponding to the first groove (102). The second grooves (201) are used to accommodate the limiting block (7). A buckle groove (5) is provided in the middle of the side panel of the inner box (2) at the same opening position as the outer box (1). An "n"-shaped third groove (202) is provided inside the side panel of the inner box (2) at the same opening position as the outer box (1). 202) An "n"-shaped connecting rod (8) is provided inside. The lower end of the connecting rod (8) is fixedly connected to the top of the two limiting blocks (7) respectively. The spring (9) is sleeved on the lower end of the connecting rod (8). The lower end of the spring (9) is in contact with the top surface of the limiting block (7). The upper end of the spring (9) is limited to the top surface of the second groove (201). The lower end of the third groove (202) is connected to the two second grooves (201) respectively. The upper end of the third groove (202) passes through the connecting buckle groove (5). With the inner box (2) placed inside the outer box (1), the limiting block (7) engages in the space formed by the first groove (102) and the second groove (201).

2. The side-opening carton structure according to claim 1, characterized in that: The outer casing (1) has a cover (3) on one side of the opening.

3. The side-opening carton structure according to claim 2, characterized in that: The lid (3) includes a connecting plate (4). One end of the lid (3) is fixedly connected to the box body (1), and the other end is fixedly connected to the connecting plate (4). The inner side of the connecting plate (4) is provided with a hook and loop fastener (401), and the outer box body (1) is provided with a hook and loop fastener (101) on the side corresponding to the hook and loop fastener (401).

4. The side-opening carton structure according to claim 1, characterized in that: The top of the outer casing (1) is provided with a lifting strap (6).

5. The side-opening carton structure according to claim 1, characterized in that: The limiting block (7) is a trapezoidal limiting block with a slope at the bottom.

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