A sleeve-type drawer box with a multi-section pull-out structure

CN122561407APending Publication Date: 2026-08-14NANJING QIMEI PACKAGING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-25
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

针对现有技术中存在的问题,本发明提供了一种具有多段抽拉结构的封套式抽屉盒,以解决背景技术中打包效率低,不方便开盒以及不可循环利用的问题

Benefits of technology

内盒以内盒底板为基础,通过前后两侧可弯折的内盒长侧板、左右两侧可弯折的内盒短侧板实现整体折叠成型,再依托自由端的固定组件完成拼接成型为中空容纳腔体,实现产品的基础承载功能。外盒采用开放式封套结构,整体包裹于成型内盒外侧,且内外盒尺寸匹配,可实现内盒沿外盒轴向平稳抽拉滑动,形成抽屉式开合结构;同时外盒设置有快拆组件,负责封套的快速封合与开启,摒弃传统胶水、胶带黏合的固定封装方式;打包效率更高,破损率更小,而且开盒方式更方便,可循环利用。

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Abstract

This invention relates to the field of packaging boxes, and more specifically, to a sleeve-type drawer box with a multi-segment pull-out structure, comprising: an inner box with an inner box bottom plate at its bottom end, long inner box side plates that can be bent on the front and rear sides of the inner box bottom plate, and short inner box side plates that can be bent on the left and right sides of the inner box bottom plate; and a fixing component disposed at the free ends of the long and short inner box side plates for folding the inner box into a hollow cavity; the inner box is formed by folding the inner box bottom plate as a base, through the bendable long inner box side plates on the front and rear sides and the bendable short inner box side plates on the left and right sides, and then assembled into a hollow cavity by relying on the fixing component at the free ends, thus realizing the basic load-bearing function of the product. The outer box adopts an open sleeve structure, which completely wraps around the outer side of the formed inner box, and the inner and outer boxes are matched in size, allowing the inner box to be smoothly pulled out and slid along the axial direction of the outer box, forming a drawer-type opening and closing structure.
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Description

Technical Field

[0001] This invention relates to the field of packaging boxes, and more specifically, to a sleeve-type drawer box with a multi-section pull-out structure. Background Technology

[0002] Traditional drawer-style packaging boxes typically consist of an inner box and an outer sleeve, relying mainly on large-area glue to achieve structural fixation and sealing.

[0003] On the one hand, the assembly and packaging efficiency is low, making it difficult to meet the needs of large-scale mass production. The inner side panels, linings and bottom panels of existing drawer boxes, as well as the various surfaces of the outer cover, all require manual gluing. Applying glue over large areas not only requires precise control of the amount of glue to avoid overflow and contamination of the box surface, but also necessitates setting up a dedicated drying station to wait for the glue to fully cure. The assembly cycle of a single box is long, which seriously restricts the production line's pace.

[0004] On the other hand, most existing drawer boxes use a fully enclosed adhesive structure for their outer cover, or use transparent tape for final sealing. Consumers often need to use tools such as scissors to open the box, which is cumbersome. Moreover, during the disassembly process, the surface of the box will be irreversibly damaged due to the glue tearing, making it impossible to reassemble and use.

[0005] To address the aforementioned issues, a sleeve-type drawer box with a multi-segment pull-out structure is proposed. Summary of the Invention

[0006] (a) Technical problems to be solved To address the problems existing in the prior art, the present invention provides a sleeve-type drawer box with a multi-segment pull-out structure, in order to solve the problems of low packaging efficiency, inconvenience in opening the box, and non-recyclability in the prior art.

[0007] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a sleeve-type drawer box with a multi-segment pull-out structure, comprising: The inner box has an inner box bottom plate at its bottom end. The front and rear sides of the inner box bottom plate are bent to form long inner box side plates, and the left and right sides of the inner box bottom plate are bent to form short inner box side plates. A fixing component is provided at the free ends of the long side plate and the short side plate of the inner box, and is used to fold the inner box into a hollow cavity. The outer box is a sleeve-type structure that wraps around the outside of the inner box. The dimensions of the inner box and the outer box are matched so that the inner box can be pulled and slid relative to the outer box along the axial direction. The outer box includes a sleeve base plate and a quick-release assembly for quick sealing and opening of the outer box.

[0008] The present invention is further configured such that the two sides of the cover bottom plate are provided with cover side plates, and the free ends of the two sets of cover side plates are provided with cover top cover and cover bottom cover.

[0009] The present invention is further configured such that the quick-release components are respectively fixedly connected to the back sides of the upper cover and the lower cover of the cover and correspond to each other.

[0010] The present invention is further configured such that the quick-release component includes a hook and loop fastener and a hook and loop fastener, wherein the hook and loop fasteners are bonded to each other.

[0011] The present invention is further configured such that the quick-release assembly includes a first magnet and a second magnet, wherein the first magnet and the second magnet have opposite magnetic properties and are attracted to each other.

[0012] The present invention is further configured such that the fixing component includes a long inner liner and a short inner liner, the free end of the long side plate of the inner box is connected to the long inner liner via a long folded edge, and the short side plate of the inner box is connected to the short inner liner via a short folded edge.

[0013] The present invention is further configured such that the two sides of the short side panel of the inner box are provided with first side wings that can be bent, and the two sides of the short inner liner are provided with second side wings that can be bent.

[0014] The invention is further configured such that connecting grooves are symmetrically provided on both sides of the long inner lining, and the connecting grooves are matched with the dimensions of the short inner lining.

[0015] The present invention is further configured such that an operation port is provided in the middle of the free end of the long inner liner, and a handle hole is provided through the middle of both the short side plate of the inner box and the short inner liner.

[0016] The present invention is further configured such that pull strap holes are provided through both sides of the sleeve side plate.

[0017] (III) Beneficial Effects Compared with the prior art, the present invention provides a sleeve-type drawer box with a multi-segment pull-out structure, which has the following advantages: The inner box is based on the base plate and is folded into shape using the long, flexible side panels on the front and back, and the short, flexible side panels on the left and right. It is then assembled using fixed components at the free ends to form a hollow, accommodating cavity, providing the basic load-bearing function for the product. The outer box uses an open-sleeve structure, completely enclosing the inner box. The inner and outer boxes are sized to match, allowing the inner box to slide smoothly along the outer box's axis, forming a drawer-like opening and closing structure. The outer box also features quick-release components for rapid sealing and opening, eliminating the need for traditional glue or tape sealing. This results in higher packaging efficiency, lower breakage rates, easier opening, and reusability.

[0018] The quick-release assembly uses matching Velcro tabs and snap fasteners, or a first magnet and a second magnet with opposite magnetic properties, allowing users to quickly control the opening and closing of the outer box. Attached Figure Description

[0019] Figure 1 This is a schematic diagram showing the outer box of a sleeve-type drawer box with a multi-section pull-out structure when opened.

[0020] Figure 2 This is a schematic diagram of the inner box of a sleeve-type drawer box with a multi-section pull-out structure when it is pulled out.

[0021] Figure 3 This is a schematic diagram of the inner box structure of a sleeve-type drawer box with a multi-section pull-out structure.

[0022] Figure 4 This is a schematic diagram of the outer box structure of a sleeve-type drawer box with a multi-section pull-out structure.

[0023] Figure 5 for Figure 4 Bottom side view.

[0024] In the diagram: 1. Inner box bottom plate; 11. Inner box long side plate; 12. Long folded edge; 13. Long inner lining; 131. Connecting groove; 132. Operating port; 14. Inner box short side plate; 141. First side wing; 15. Short folded edge; 16. Short inner lining; 161. Second side wing; 162. Handle hole; 2. Enclosure bottom plate; 21. Enclosure side plate; 22. Enclosure top cover; 23. Enclosure bottom cover; 24. Quick release assembly; 25. Pull strap hole. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0028] For examples, please refer to Figures 1-5A sleeve-type drawer box with a multi-segment pull-out structure includes: an inner box with an inner box bottom plate 1 at its bottom end, inner box long side plates 11 that can be bent on the front and rear sides of the inner box bottom plate 1, and inner box short side plates 14 that can be bent on the left and right sides of the inner box bottom plate 1; a fixing assembly disposed at the free ends of the inner box long side plates 11 and inner box short side plates 14, used to fold the inner box into a hollow cavity; and an outer box, which is a sleeve-type structure and wraps around the outside of the inner box. The dimensions of the inner box and the outer box are matched so that the inner box can be pulled out and slid relative to the outer box along the axial direction. The outer box includes a sleeve bottom plate 2 and a quick-release assembly 24 for quick sealing and opening of the outer box.

[0029] In this embodiment, the inner box is based on the inner box base plate 1, and is folded into shape as a whole through the bendable long side plates 11 on the front and back sides and the bendable short side plates 14 on the left and right sides. Then, it is assembled into a hollow cavity by relying on the fixing components at the free end, realizing the basic load-bearing function of the product. The outer box adopts an open sleeve structure, which is completely wrapped around the outside of the molded inner box. The inner and outer boxes are matched in size, which can realize the smooth sliding of the inner box along the axis of the outer box to form a drawer-type opening and closing structure. At the same time, the outer box is equipped with a quick-release component 24, which is responsible for the quick sealing and opening of the sleeve, eliminating the traditional fixed sealing method of glue and tape. The packaging efficiency is higher, the damage rate is lower, and the opening method is more convenient and recyclable.

[0030] The bottom plate 2 of the envelope is provided with envelope side plates 21 on both sides, and the free ends of the two sets of envelope side plates 21 are provided with envelope top cover 22 and envelope bottom cover 23.

[0031] In this embodiment, symmetrically arranged bendable sleeve side plates 21 are provided on both sides of the sleeve base plate 2. The free ends of the two sets of sleeve side plates 21 can be bent to connect the upper sleeve cover 22 and the lower sleeve cover 23, respectively, so that the outer box forms a complete open sleeve enclosure structure. The entire panel is a one-piece bendable design, without the need for additional splicing and assembly. The upper and lower enclosure cavity can be formed by simple bending, completely wrapping the inner pull-out box, realizing the rapid forming and protective function of the outer box.

[0032] Specifically, the quick-release components 24 are fixedly connected to the back sides of the upper cover 22 and the lower cover 23 of the cover, respectively, and correspond to each other.

[0033] In this embodiment, the quick-release components 24 are fixed to the back of the upper cover 22 and the lower cover 23 of the envelope, respectively. Through the alignment and cooperation of the upper and lower cover quick-release components 24, the upper cover 22 and the lower cover can be quickly attached and locked to complete the sealing of the outer box. The reverse operation can quickly unlock and open the envelope. The entire process relies on the alignment quick-release structure and requires no auxiliary tools.

[0034] Furthermore, the quick-release component 24 includes a Velcro tab and a Velcro tab, which are bonded to each other.

[0035] In this embodiment, the quick-release component 24 is composed of matching Velcro tabs and female tabs, which are respectively installed on the back of the upper and lower covers of the envelope. When sealing the box, the upper and lower covers are fixed together by the physical adhesion of the Velcro, thus completing the quick sealing of the outer box. When opening the box, the Velcro adhesive surface can be separated by hand to quickly unlock and open the envelope. The entire process is purely physical adhesion.

[0036] Furthermore, the quick-release assembly 24 includes a first magnet and a second magnet, the first magnet and the second magnet having opposite magnetic properties and attracting each other.

[0037] In this embodiment, the quick-release assembly 24 is composed of a first magnet and a second magnet with opposite magnetic properties. Utilizing the physical principle of mutual attraction between opposite magnetic poles, the upper and lower covers can be automatically attracted and adhered when the box is sealed, thus completing the quick sealing. When the box is opened, applying a pulling force can overcome the magnetic attraction and separate the upper and lower covers, achieving quick opening. The entire process is automated and aligned without the need for manual fixing.

[0038] Furthermore, the fixing assembly includes a long inner liner 13 and a short inner liner 16. The free end of the long side panel 11 of the inner box is connected to the long inner liner 13 via a long folded edge 12, and the short side panel 14 of the inner box is connected to the short inner liner 16 via a short folded edge 15.

[0039] In this embodiment, the free end of the long side panel 11 of the inner box is integrally bent to connect to the long inner liner 13 via the long folded edge 12, and the short side panel 14 of the inner box is integrally bent to connect to the short inner liner 16 via the short folded edge 15. Relying on the support and limiting effect of the long inner liner 13 and the short inner liner 16, the long and short side panels of the inner box after bending are locked, so that each side panel is kept in a vertical and closed state, avoiding bending and springback, and finally the inner box is stably formed into a hollow cavity, realizing the physical assembly and fixation of the inner box without glue or accessories.

[0040] Furthermore, the short side panel 14 of the inner box is provided with first side wings 141 that can be bent on both sides, and the short inner liner 16 is provided with second side wings 161 that can be bent on both sides.

[0041] In this embodiment, when the inner box is assembled, the short side plate 14 and the short inner liner 16 of the inner box are fitted and locked by the synchronous bending and bonding of the first side wing 141 and the second side wing 161, which further seals the gaps between the side plates and forms lateral limiting on the adjacent plates to prevent local loosening or displacement, and assists in the overall forming and fixing of the inner box.

[0042] The long inner lining 13 has symmetrical connecting grooves 131 on both sides, and the connecting grooves 131 are matched with the dimensions of the short inner lining 16.

[0043] In this embodiment, during the assembly of the inner box, the two ends of the short inner liner 16 can be inserted into the connecting groove 131 of the long inner liner 13 to achieve the fitting and locking of the long inner liner 13 and the short inner liner 16, so that the support structure in the length and width direction of the inner box forms a whole, locking the relative positions of each side plate and inner liner, and improving the overall stability.

[0044] Preferably, an operation port 132 is provided in the middle of the free end of the long inner liner 13, and a handle hole 162 is provided in the middle of both the short side plate 14 and the short inner liner 16 of the inner box.

[0045] In this embodiment, the operating port 132 can help the user quickly pry open the embedded inner lining structure, making it convenient for the inner box to be quickly disassembled and opened; the symmetrically arranged carrying holes 162 can be directly used as the force points for handling, without the need to install additional carrying handle accessories, and at the same time, it does not affect the folding and pulling-out functions of the box.

[0046] It should be noted that the sleeve side plate 21 has pull strap holes 25 through both sides.

[0047] In this embodiment, pull strap holes 25 are provided on both sides of the cover side plate 21. Pull straps can be selected and inserted into the holes as needed to form an external carrying auxiliary structure.

[0048] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. 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 variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sleeve-type drawer box with a multi-segment pull-out structure, characterized in that, include: The inner box has an inner box bottom plate (1) at its bottom end. The inner box bottom plate (1) has long inner box side plates (11) that can be bent on the front and back sides, and short inner box side plates (14) that can be bent on the left and right sides. A fixing component is provided at the free ends of the long side plate (11) and the short side plate (14) of the inner box, for folding the inner box into a hollow cavity; The outer box is a sleeve structure and is wrapped around the outside of the inner box. The inner box and the outer box are matched in size so that the inner box can be pulled and slid relative to the outer box along the axis. The outer box includes a sleeve base plate (2) and a quick-release assembly (24) for quick sealing and opening of the outer box.

2. A sleeve-type drawer box with a multi-segment pull-out structure according to claim 1, characterized in that: The bottom plate (2) of the envelope is provided with bendable side plates (21) on both sides, and the free ends of the two sets of side plates (21) are provided with upper cover (22) and lower cover (23).

3. A sleeve-type drawer box with a multi-segment pull-out structure according to claim 2, characterized in that: The quick-release components (24) are fixedly connected to the back of the upper cover (22) and the lower cover (23) of the cover, respectively, and correspond to each other.

4. A sleeve-type drawer box with a multi-segment pull-out structure according to claim 3, characterized in that: The quick-release assembly (24) includes a Velcro tab and a Velcro tab, which are bonded to each other.

5. A sleeve-type drawer box with a multi-segment pull-out structure according to claim 3, characterized in that: The quick-release assembly (24) includes a first magnet and a second magnet, the first magnet and the second magnet having opposite magnetic properties and attracting each other.

6. A sleeve-type drawer box with a multi-segment pull-out structure according to claim 1, characterized in that: The fixing assembly includes a long inner liner (13) and a short inner liner (16). The free end of the long side panel (11) of the inner box is connected to the long inner liner (13) via a long fold (12), and the short side panel (14) of the inner box is connected to the short inner liner (16) via a short fold (15).

7. A sleeve-type drawer box with a multi-segment pull-out structure according to claim 6, characterized in that: The short side panel (14) of the inner box is provided with a first side wing (141) that can be bent on both sides, and the short inner liner (16) is provided with a second side wing (161) that can be bent on both sides.

8. A sleeve-type drawer box with a multi-segment pull-out structure according to claim 7, characterized in that: The long inner lining (13) has symmetrical connecting grooves (131) on both sides, and the connecting grooves (131) are matched with the size of the short inner lining (16).

9. A sleeve-type drawer box with a multi-segment pull-out structure according to claim 8, characterized in that: An operation port (132) is provided in the middle of the free end of the long inner liner (13), and a handle hole (162) is provided in the middle of the short side plate (14) of the inner box and the short inner liner (16).

10. A sleeve-type drawer box with a multi-segment pull-out structure according to claim 2, characterized in that: Pull strap holes (25) are provided on both sides of the cover side plate (21).