Corrugated carton with adjustable size

Abstract

The utility model discloses a size-adjustable corrugated carton, and relates to the technical field of corrugated cartons, the size-adjustable corrugated carton comprises a first carton body, a first patch and a second patch, the inner side of the first carton body is slidably connected with a second carton body, the inner side of the second carton body is fixedly connected with a plurality of groups of symmetrically arranged mounting strips, and the outer parts of the mounting strips are provided with insertion holes; a positioning mechanism is mounted on the inner side of the mounting strip; the first patch is fixedly connected to the inner side of the first box body, a fixing rod is fixedly connected to the exterior of the first patch, an inserting rod is fixedly connected to the exterior of the fixing rod, and a second toothed plate is fixedly connected to the exterior of the inserting rod; and the second patch is fixedly connected to the exterior of the second box body, and a quick release mechanism is installed on the exterior of the second patch. According to the device, meshing of the toothed plate and locking of the insertion rod can be synchronously relieved by rotating the screwing piece, sliding adjustment of the box body is achieved, automatic reset locking with the tooth-shaped inclined face is achieved by means of elastic force of the spring after loosening, a tool-free convenient operation mode of adjusting once screwing and locking once loosening is formed, and the size adjusting efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box technology, and more specifically, to a corrugated cardboard box with adjustable size. Background Technology

[0002] Traditional corrugated cardboard boxes typically have fixed dimensions, making it difficult to adapt to the packaging needs of items of different sizes. When the size of the items changes or when warehousing and transportation space needs to be optimized, it is often necessary to change to different sized cardboard boxes. This not only increases packaging costs and inventory management difficulties but also wastes resources. Although there are a few adjustable cardboard box designs on the market, their structures are often quite complex, relying on additional metal or plastic adjustment parts. This not only increases manufacturing costs but also contradicts the environmentally friendly properties of corrugated cardboard. Furthermore, the adjustment process is usually cumbersome, requiring tools or multiple steps, making it difficult to meet the practical application needs for quick and convenient adjustments.

[0003] Existing adjustable carton adjustment mechanisms generally suffer from problems such as inconvenient operation, unstable positioning, or complex structure. Some designs rely on manually inserting and removing pins or adjusting multiple connectors to achieve size changes, which is time-consuming and labor-intensive. Others use complex slide rails or locking mechanisms, which increase production difficulty and failure rate. These designs either make it difficult to achieve quick one-handed operation or cannot provide reliable automatic locking after adjustment, making them prone to accidental displacement during transportation. Therefore, in order to address the above technical problems, this paper proposes an adjustable corrugated carton. Utility Model Content

[0004] The purpose of this utility model is to provide a corrugated cardboard box that can be adjusted in size. By rotating the screw, the toothed plate can be disengaged and the locking rod can be released simultaneously, so as to realize the sliding adjustment of the box body. After being released, the box body can be automatically reset and locked by the spring force and the toothed inclined surface. This forms a convenient operation mode of tool-free adjustment and locking, which significantly improves the efficiency of size adjustment.

[0005] This utility model is achieved through the following technical solution:

[0006] An adjustable-size corrugated cardboard box includes:

[0007] The first housing has a second housing slidably connected to its inner side. The inner side of the second housing has multiple sets of symmetrically arranged mounting strips fixedly connected to it. The mounting strips have insertion holes on their outer sides and positioning mechanisms installed on their inner sides.

[0008] The first patch, which consists of several groups, is fixedly connected to the inside of the first housing and arranged symmetrically. A fixing rod is fixedly connected to the outside of the first patch, an insert rod is fixedly connected to the outside of the fixing rod, and a second toothed plate is fixedly connected to the outside of the insert rod.

[0009] The second patch is fixedly connected to the outside of the second housing and is installed between the two sets of mounting strips. A quick-release mechanism is installed on the outside of the second patch.

[0010] Preferably, both the first and second housings have push-pull grooves on their exteriors.

[0011] Preferably, the positioning mechanism includes a mounting plate, a first toothed plate, a telescopic rod, and a compression spring. The telescopic rod and the compression spring are fixedly connected to the inner side of the mounting strip, and the other end of the telescopic rod and the compression spring are fixedly connected to one side of the mounting plate. The first toothed plate is fixedly connected to the other side of the mounting plate.

[0012] Preferably, the insertion rod and the insertion hole are matched, and the first toothed plate and the second toothed plate are engaged.

[0013] Preferably, the quick-release mechanism includes a rotating rod and a connecting rope, the rotating rod being rotatably connected to the outside of the second patch, and the connecting rope being fixedly connected to the outside of the rotating rod.

[0014] Preferably, the mounting strip has a through hole on its exterior, and the other end of the connecting rope passes through the through hole and is fixedly connected to one side of the mounting plate.

[0015] Preferably, the rotating rod is externally fixedly connected with a screw.

[0016] The technical solution of this utility model has at least the following beneficial effects:

[0017] This adjustable corrugated cardboard box can be instantly unlocked by rotating the screw, allowing for rapid sliding adjustment of the box size without the need for tools. After releasing the screw, the spring pushes the toothed plate to automatically spring back and engage, combined with the inclined guide to ensure precise self-locking. The operation is completed in one step. After adjustment, the insertion rod and insertion hole form a double limit, ensuring a firm and stable connection of the box and effectively preventing displacement during transportation. The all-paper-based structure reduces production costs while ensuring strength. The tool-free adjustment function, which eliminates the need for metal or plastic parts, significantly reduces the frequency of packaging specification changes, lowers warehousing and logistics costs, and its convenience and reliability meet the needs of frequent adjustments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 for Figure 1 Enlarged view of A in the middle;

[0020] Figure 3 This is a partial structural front sectional view of the present invention;

[0021] Figure 4 for Figure 3Enlarged view of B in the middle;

[0022] Figure 5 for Figure 3 Enlarged view of C;

[0023] Figure 6 for Figure 1 Enlarged view of D;

[0024] Icons: 1. First housing; 2. Second housing; 3. Sliding groove; 4. Mounting strip; 5. Insertion hole; 6. Mounting plate; 7. First toothed plate; 8. Telescopic rod; 9. Compression spring; 10. First patch; 11. Fixing rod; 12. Insert rod; 13. Second toothed plate; 14. Second patch; 15. Rotating rod; 16. Connecting rope; 17. Through hole; 18. Tightening component. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] Example

[0027] This application discloses an adjustable corrugated cardboard box, comprising a first box body 1, a first patch 10, and a second patch 14. The first box body 1 serves as a basic load-bearing structure, and a second box body 2 is slidably connected to its inner side. The two boxes are slidably adjusted relative to each other via a push-pull groove 3. The push-pull groove 3 is located on the outside of the first box body 1 and the second box body 2, facilitating operation by the user.

[0028] like Figure 1 as well as Figure 5 As shown, multiple sets of symmetrically arranged mounting strips 4 are fixedly connected to the inner side of the second housing 2. These mounting strips 4 serve as a supporting frame to enhance the structural strength of the housing. The outer side of each mounting strip 4 has insertion holes 5 for engaging with the insertion rod 12 to achieve a limiting function. A positioning mechanism is installed on the inner side of each mounting strip 4, comprising a mounting plate 6, a first toothed plate 7, a telescopic rod 8, and a compression spring 9. The telescopic rod 8 and the compression spring 9 are fixedly connected to the inner side of the mounting strip 4, with their other ends fixedly connected to one side of the mounting plate 6, together forming an elastic reset device. The first toothed plate 7 is fixedly connected to the other side of the mounting plate 6, and its engagement with the second toothed plate 13 forms a reliable locking mechanism. The matching between the insertion rod 12 and the insertion hole 5 ensures sliding guidance accuracy, while the engagement between the first toothed plate 7 and the second toothed plate 13 provides a stable positioning effect.

[0029] like Figure 2As shown, there are several sets of first patches 10, which are fixedly connected to the inside of the first housing 1 and arranged symmetrically, serving as a connecting base. A fixing rod 11 is fixedly connected to the outside of the first patch 10, an insert rod 12 is fixedly connected to the outside of the fixing rod 11, and a second toothed plate 13 is fixedly connected to the outside of the insert rod 12. These components together form a linkage locking unit.

[0030] like Figure 5 as well as Figure 6 As shown, the second patch 14 is fixedly connected to the outside of the second housing 2, and the second patch 14 is installed between the two sets of mounting strips 4, serving as the mounting platform for the quick-release mechanism. A quick-release mechanism is installed on the outside of the second patch 14. The quick-release mechanism includes a rotating rod 15 and a connecting rope 16. The rotating rod 15 is rotatably connected to the outside of the second patch 14 to achieve a rotation function, and the connecting rope 16 is fixedly connected to the outside of the rotating rod 15 to transmit tension.

[0031] like Figure 5 as well as Figure 6 As shown, the mounting strip 4 has a through hole 17 on its exterior, providing a passage for the connecting rope 16. The other end of the connecting rope 16 passes through the through hole 17 and is fixedly connected to one side of the mounting plate 6, forming a transmission connection. The rotating rod 15 is fixedly connected to a screw 18 on its exterior, serving as an operating handle.

[0032] The working principle of the adjustable corrugated cardboard box based on the embodiment is as follows: When the size of the cardboard box needs to be adjusted, the operator rotates the screw 18 installed on the outside of the second patch 14. The screw 18 drives the rotating rod 15 fixed thereto to rotate, thereby winding the connecting rope 16 fixed to the rotating rod 15. The other end of the connecting rope 16 passes through the through hole 17 on the mounting strip 4 and is fixed to one side of the mounting plate 6. Therefore, the winding action will pull the mounting plate 6 to overcome the elastic force of the compression spring 9 fixed between it and the mounting strip 4, and at the same time compress the telescopic rod 8 to move inward. The movement of the mounting plate 6 will cause the first toothed plate 7 fixed on its other side to disengage from the engagement state with the second toothed plate 13, releasing the lock on the fixing rod 11 and its insertion rod 12. At this time, because The insertion rod 12 is always matched with and inserted into the insertion hole 5 on the mounting strip 4. The operator can apply external force through the push-pull groove 3 to make the first housing 1 and the second housing 2 slide relative to each other in the sliding connection direction. The insertion rod 12 moves under the limiting guidance of the insertion hole 5, thereby realizing continuous size adjustment. After adjusting to the required size, the screw 18 is loosened. Under the restoring elastic force of the compression spring 9, the mounting plate 6 is pushed outward, which drives the first toothed plate 7 to reset. With the help of the inclined surface design of the contact surface of the first toothed plate 7 and the second toothed plate 13, the two can automatically and smoothly re-engage and lock. At the same time, the insertion rod 12 reaches a new stable position in the insertion hole 5, which together ensures that the first housing 1 and the second housing 2 are firmly connected under the adjusted size. The whole process is efficient and convenient.

[0033] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrugated cardboard box with adjustable dimensions, characterized in that, include: The first housing (1) has a second housing (2) slidably connected to its inner side. The inner side of the second housing (2) is fixedly connected with multiple sets of symmetrically arranged mounting strips (4). The mounting strips (4) have insertion holes (5) on their outer sides and positioning mechanisms are installed on their inner sides. The first patch (10) is in several groups and is fixedly connected to the inner side of the first box (1) and arranged symmetrically. The first patch (10) is fixedly connected to the outside of a fixing rod (11), the fixing rod (11) is fixedly connected to the outside of a plug rod (12), and the plug rod (12) is fixedly connected to the outside of a second toothed plate (13). The second patch (14) is fixedly connected to the outside of the second housing (2) and is installed between the two sets of mounting strips (4). A quick-release mechanism is installed on the outside of the second patch (14).

2. The adjustable-size corrugated cardboard box according to claim 1, characterized in that: Both the first box (1) and the second box (2) have push-pull grooves (3) on their exteriors.

3. The adjustable-size corrugated cardboard box according to claim 1, characterized in that: The positioning mechanism includes a mounting plate (6), a first toothed plate (7), a telescopic rod (8), and a compression spring (9). The telescopic rod (8) and the compression spring (9) are fixedly connected to the inner side of the mounting strip (4), and the other end of the telescopic rod (8) and the compression spring (9) are fixedly connected to one side of the mounting plate (6). The first toothed plate (7) is fixedly connected to the other side of the mounting plate (6).

4. The adjustable-size corrugated cardboard box according to claim 3, characterized in that: The insertion rod (12) is matched with the insertion hole (5), and the first toothed plate (7) and the second toothed plate (13) are engaged.

5. The adjustable-size corrugated cardboard box according to claim 1, characterized in that: The quick-release mechanism includes a rotating rod (15) and a connecting rope (16). The rotating rod (15) is rotatably connected to the outside of the second patch (14), and the connecting rope (16) is fixedly connected to the outside of the rotating rod (15).

6. The adjustable-size corrugated cardboard box according to claim 5, characterized in that: The mounting strip (4) has a through hole (17) on its outside, and the other end of the connecting rope (16) passes through the through hole (17) and is fixedly connected to one side of the mounting plate (6).

7. The adjustable-size corrugated cardboard box according to claim 5, characterized in that: The rotating rod (15) is externally fixedly connected to a screw (18).

Images