Container box with screw cap
By using a polygonal outer bottle and a snap-on cover design, along with a locking strip and a limiting ring, the problems of warping of rectangular containers and difficulty in loosening the lid are solved, thus improving the container's aesthetics and sealing performance.
Patent Information
- Application Number
- CN202520074684.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Existing rectangular containers are prone to warping at the top corners of the square cover, making the lid difficult to loosen, which affects user experience and aesthetics.
The design features a polygonal outer bottle and a snap-on cover. By utilizing the deformation allowance gap between the first and second locking strips, combined with a limiting ring and an elastic cleaning strip, it limits warping and deformation and improves the problem of the cap loosening.
It enhances the overall aesthetics and texture of the rectangular box, solves the problem of loose lids, and improves the container's airtightness.
Smart Images
Figure CN223619305U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of packaging containers, and more particularly to a screw-top container box. Background Technology
[0002] Containers, as basic devices for containing materials, come in various design forms, including cylindrical and polygonal shapes, to meet the needs of different material storage and transportation. In the manufacturing process, modular injection molding and assembly technologies are widely used due to their low cost and high production efficiency. Especially in the design of polygonal containers, such as rectangular containers, their neat appearance and ease of stacking make them popular in the market.
[0003] A rectangular container typically consists of three parts: a rectangular outer bottle, an inner liner (or inner bottle), and a rectangular lid. To enhance structural stability and facilitate assembly, the inner liner usually has square snap-fit covers around its perimeter. The inner walls of these snap-fit covers are designed with locking grooves, while the side walls of the rectangular outer bottle have corresponding locking strips. Through the interplay of these locking strips and grooves, the rectangular outer bottle and inner liner are connected via a snap-fit mechanism. Furthermore, the inner liner and rectangular lid are often connected by threads to ensure a tight seal.
[0004] However, existing rectangular containers still have some design shortcomings. In particular, injection-molded square covers are prone to deformation at the apex, causing warping. This warping not only reduces the overall texture and aesthetics of the container but may also make it difficult to loosen the rectangular lid after tightening the inner liner, thus seriously affecting the user experience. Utility Model Content
[0005] To address the problems existing in the prior art, this application proposes an optimized screw-top container box, which aims to improve the overall aesthetics and texture of the rectangular box, while effectively solving the problem that the lid is difficult to loosen.
[0006] The screw-cap container box provided in this application adopts the following technical solution:
[0007] A screw-cap container box includes an outer bottle, a cover, and a cap. The axial projections of the outer bottle, the cover, and the cap are all polygonal. A first retaining strip is provided on the peripheral sidewall of the bottle opening, extending horizontally perpendicular to the axis of the outer bottle. A second retaining strip is provided on the outer sidewall of each of the outer bottle's apex corners, extending along the arc of the apex corner. A deformation allowance gap is provided between the first and second retaining strips. The inner sidewall of the cover has a slot for the first and second retaining strips to engage, extending circumferentially along the cover. The cap is threadedly connected to the cover.
[0008] By adopting the above technical solution, and utilizing the combination of the first and second clips, when the cover is pressed onto the bottle opening, the presence of a deformation allowance gap between the first and second clips reduces the risk of the cover warping outwards due to difficulty in pressing it onto the outer bottle. The first and second clips are confined within the slots, thereby limiting the warping of the cover's edges and corners. This improves the overall aesthetics and texture of the rectangular box, while also addressing the problem of the cover being difficult to loosen due to warping.
[0009] Optionally, a third retaining strip is provided on the peripheral sidewall of the outer bottle opening, and the third retaining strip extends in a direction parallel to the axial direction of the outer bottle; a limiting groove is correspondingly provided on the inner wall of the buckle cover, and the limiting groove is for the third retaining strip to be inserted.
[0010] By adopting the above technical solution, the combination of the third clip and the limiting groove reduces the risk that the buckle will rotate with the lid when the lid is turned, and reduces the loosening of the buckle on the outer bottle, thereby further improving the overall aesthetics and texture of the rectangular box.
[0011] Optionally, the cover is provided with an inner liner, the cap is threaded to the inner liner, and the outer bottom wall of the inner liner is provided with a limiting ring, which is used to abut against the inner bottom wall of the outer bottle.
[0012] By adopting the above technical solution and the design of the limiting ring, the risk of the inner liner tilting on the outer bottle is reduced. Since the inner liner is connected to the cover, the further tilting and warping of the cover on the outer bottle is limited, thereby further improving the overall aesthetics and texture of the rectangular box.
[0013] Optionally, the inner bottom wall of the outer bottle is provided with an alignment ring, and the limiting ring is for the alignment ring to be inserted.
[0014] By adopting the above technical solution, the introduction of the alignment ring compensates for the manufacturing tolerance of the distance between the limiting ring and the bottom wall of the outer bottle during the manufacturing process, so that the limiting ring can be confined within the alignment ring.
[0015] Optionally, both the first and second clips have trapezoidal cross-sections, and the inclined surface of the trapezoid is used to guide the buckle cover to fasten with the outer bottle.
[0016] By adopting the above technical solution, it is easier for the cover to be pressed onto the outer bottle, reducing the deformation of the cover during the pressing process and the risk of edge deformation, thereby further improving the overall aesthetics and texture of the rectangular box.
[0017] Optionally, when the cover is tightened onto the buckle, a rotational clearance is left between the cover and the buckle.
[0018] By adopting the above technical solution and designing the rotation allowance gap, the contact area between the cover and the buckle is reduced when the cover is tightened onto the buckle, thereby reducing the friction between the cover and the buckle and making it easier to tighten and loosen the cover onto the buckle.
[0019] Optionally, the buckle cover is provided with a self-cleaning surface at an angle to the edge of the cover, and the self-cleaning surface extends circumferentially along the buckle cover.
[0020] By adopting the above technical solution, when foreign objects or particles fall onto the cover, they can fall off on their own through the self-cleaning surface, thus improving the problem of foreign objects or particles getting stuck in the gap between the cover and the cover, making it difficult to loosen the cover.
[0021] Optionally, it also includes a flexible cleaning strip, which is housed in the gap between the self-cleaning surface and the cover; the edge of the flexible cleaning strip is fixed to the edge of the cover; when the flexible cleaning strip is flipped over and the cover is placed on the cover, the flexible cleaning strip is released and will abut against the outer wall of the cover.
[0022] By adopting the above technical solution, the introduction of the elastic cleaning strip can, on the one hand, clean the foreign objects by flipping the elastic cleaning strip when they are stuck to the self-cleaning surface; on the other hand, the elastic deformation of the elastic cleaning strip can further seal the gap between the cover and the buckle, thereby further improving the sealing performance of the container box of this application based on the threaded connection.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] By using the combination of the first and second clips, when the cover is pressed onto the bottle opening, the gap between the first and second clips reduces the risk of the cover warping outwards due to the difficulty in pressing it onto the bottle. The first and second clips are confined within the slots, thereby limiting the warping of the cover's edges and corners. This improves the overall aesthetics and texture of the rectangular box, while also addressing the problem of the cover being difficult to loosen due to warping.
[0025] The combination of the limiting ring and the alignment ring reduces the risk of the inner liner tilting on the outer bottle, and because the inner liner is connected to the buckle, it limits the further tilting and warping of the buckle on the outer bottle.
[0026] The introduction of the elastic cleaning strip allows for the removal of foreign objects stuck to it by flipping the strip, thus cleaning the gap between the lid and the cover. Furthermore, the elastic deformation of the cleaning strip further seals the gap between the lid and the cover, thereby improving the sealing performance of the container box in this application based on the threaded connection. Attached Figure Description
[0027] Figure 1 This is a schematic diagram illustrating the overall structure of Embodiment 1.
[0028] Figure 2 This is a schematic diagram of the exploded structure used to illustrate Example 1.
[0029] Figure 3 This is a structural schematic diagram illustrating the buckle and limiting ring of Embodiment 1.
[0030] Figure 4 This is a schematic diagram illustrating the overall structure of Embodiment 2.
[0031] Figure 5 This is a schematic diagram used to show the state where the elastic cleaning strip is flexibly turned outwards and pressed against the outer wall of the cover.
[0032] Explanation of reference numerals in the attached diagram: 1. Outer bottle; 2. Buckle cover; 21. Slot; 22. Limiting slot; 23. Self-cleaning surface; 3. Cap; 4. First locking strip; 5. Second locking strip; 6. Third locking strip; 7. Inner liner; 8. Limiting ring; 9. Alignment ring; 10. Elastic cleaning strip. Detailed Implementation
[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0034] This application discloses a screw-top container box, which aims to improve the overall aesthetics and texture of rectangular boxes, while effectively solving the problem that the lid is difficult to loosen.
[0035] Example 1, referring to Figure 1 A screw-cap container box includes an outer bottle 1, a buckle 2, and a cap 3. The axial projections of the outer bottle 1, the buckle 2, and the cap 3 are all polygons, such as triangles, rectangles, pentagons, etc. In this embodiment, a rectangle is used as an example.
[0036] Reference Figure 2 The outer bottle 1 has a first retaining strip 4 on its peripheral sidewall at the bottle opening. The first retaining strip 4 extends horizontally along a direction perpendicular to the axis of the outer bottle 1. Notably, the first retaining strip 4 is provided on all four sides of the bottle opening of the outer bottle 1. The outer sidewall at each of the outer corners of the outer bottle 1 has a second retaining strip 5 on its outer sidewall. The second retaining strip 5 extends along the arc of the outer bottle 1's apex corner. A deformation allowance gap is left between the first retaining strip 4 and the second retaining strip 5.
[0037] Reference Figure 2A third retaining strip 6 is provided on the peripheral sidewall of the bottle opening of the outer bottle 1, and the third retaining strip 6 extends in a direction parallel to the axial direction of the outer bottle 1. The number of third retaining strips 6 can be one, two, or multiple; this embodiment does not impose any limitation. The first retaining strip 4, the second retaining strip 5, and the third retaining strip 6 are all integrally formed on the outer bottle 1, and their cross-sections are all trapezoidal. The inclined surface of the trapezoid is used to guide the buckle cover 2 to fasten with the outer bottle 1.
[0038] Reference Figure 2 and Figure 3 The inner wall of the buckle cover 2 is provided with a slot 21 for the first clip 4 and the second clip 5 to be fastened. The slot 21 extends circumferentially along the buckle cover 2. The inner wall of the buckle cover 2 is provided with a limiting groove 22 corresponding to the third clip 6, for the third clip 6 to be inserted.
[0039] Reference Figure 1 The cover 2 has an integrally formed inner liner 7, and the cover 3 is threaded onto the inner liner 7. When the cover 3 is tightened onto the inner liner 7, there is a rotational clearance between the cover 3 and the cover 2. The purpose of the rotational clearance is to reduce the contact area between the cover 3 and the cover 2 when the cover 3 is tightened onto the cover 2, thereby reducing the friction between the cover 3 and the cover 2, making it easier to tighten and loosen the cover 3 onto the cover 2.
[0040] Reference Figure 2 and Figure 3 The inner liner 7 has an integrally formed limiting ring 8 on its outer bottom wall, and the outer bottle 1 has an integrally formed alignment ring 9 on its inner bottom wall. The limiting ring 8 allows the alignment ring 9 to be inserted. By using the mutual abutment of the limiting ring 8 and the alignment ring 9, the risk of the inner liner 7 tilting on the outer bottle 1 is reduced. Since the inner liner 7 is connected to the buckle 2, further tilting and warping of the buckle 2 on the outer bottle 1 is restricted.
[0041] The implementation principle of Example 1 is as follows: Utilizing the combination of the first locking strip 4 and the second locking strip 5, when the cover 2 is pressed onto the bottle opening 1, the presence of a deformation allowance gap between the first locking strip 4 and the second locking strip 5 reduces the risk of the cover 2 warping outwards due to difficulty in pressing it firmly onto the bottle 1. The first locking strip 4 and the second locking strip 5 are confined within the locking groove 21, and the third locking strip 6 is engaged in the limiting groove 22. The abutment of the limiting ring 8 and the alignment ring 9 further restricts the warping of the edges and top corners of the cover 2, thereby improving the overall aesthetics and texture of the rectangular box while addressing the problem of the cover 2 warping making it difficult to loosen the cap 3.
[0042] Example 2, refer to Figure 4 The difference between this embodiment and embodiment 1 is that it also includes an elastic cleaning strip 10, and the cover 2 is provided with a self-cleaning surface 23 at an angle to the edge of the cover 3, and the self-cleaning surface 23 extends along the circumference of the cover 2.
[0043] Reference Figure 4 The flexible cleaning strip 10 is housed within the gap between the self-cleaning surface 23 and the cover 3. This can be understood as the flexible cleaning strip 10 having a triangular cross-section with an inclined surface that abuts against the self-cleaning surface 23, thus visually covering and concealing the flexible cleaning strip 10. Of course, even when the flexible cleaning strip 10 is housed and the cover 3 is tightened onto the buckle 2, a rotational clearance remains between the flexible cleaning strip 10 and the cover 3.
[0044] Reference Figure 5 The edge of the elastic cleaning strip 10 is bonded and fixed to the edge of the cover 3. When the elastic cleaning strip 10 is flipped over and the cover 3 is placed on the buckle 2, the elastic cleaning strip 10 is released and will abut against the outer wall of the cover 3.
[0045] The implementation principle of Example 2 is as follows: when foreign objects are stuck to the elastic cleaning strip 10, the elastic cleaning strip 10 is flipped over to wipe and clean the foreign objects. On the other hand, the elastic deformation of the elastic cleaning strip 10 is used to further seal the gap between the cover 3 and the buckle 2, thereby further improving the sealing performance of the container box of this application on the basis of the threaded connection.
[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A screw-cap container box, characterized in that: The device includes an outer bottle (1), a cover (2), and a cap (3). The axial projections of the outer bottle (1), the cover (2), and the cap (3) are all polygons. The outer bottle (1) has a first locking strip (4) on its peripheral sidewall at the mouth, which extends horizontally perpendicular to the axis of the outer bottle (1). The outer bottle (1) has a second locking strip (5) on its outer sidewall at each of its apex corners, which extends along the arc of the apex corner. A deformation allowance gap is left between the first locking strip (4) and the second locking strip (5). The inner sidewall of the cover (2) has a slot (21) for the first locking strip (4) and the second locking strip (5) to be fastened, which extends circumferentially along the cover (2). The cap (3) is threaded to the cover (2).
2. A screw-cap container box according to claim 1, characterized in that: The outer bottle (1) has a third locking strip (6) on its peripheral sidewall at the bottle mouth. The third locking strip (6) extends in a direction parallel to the axial direction of the outer bottle (1). The inner wall of the cover (2) has a corresponding limiting groove (22) for the third locking strip (6) to be inserted.
3. A screw-cap container box according to claim 1, characterized in that: The cover (2) is provided with an inner liner (7), and the cap (3) is threaded to the inner liner (7). The outer bottom wall of the inner liner (7) is provided with a limiting ring (8), which is used for the inner bottom wall of the outer bottle (1) to abut.
4. A screw-cap container box according to claim 3, characterized in that: The inner bottom wall of the outer bottle (1) is provided with an alignment ring (9), and the limiting ring (8) is for the alignment ring (9) to be inserted.
5. A screw-cap container box according to claim 1, characterized in that: The cross-sections of the first clip (4) and the second clip (5) are both trapezoidal, and the inclined surface of the trapezoid is used to guide the buckle (2) to fasten with the outer bottle (1).
6. A screw-cap container box according to claim 1, characterized in that: When the cover (3) is tightened onto the buckle (2), there is a rotational clearance between the cover (3) and the buckle (2).
7. A screw-cap container box according to claim 1, characterized in that: The cover (2) is provided with a self-cleaning surface (23) at an angle to the edge of the cover (3), and the self-cleaning surface (23) extends circumferentially along the cover (2).
8. A screw-cap container box according to claim 7, characterized in that: It also includes an elastic cleaning strip (10), which is housed in the gap between the self-cleaning surface (23) and the cover (3); the edge of the elastic cleaning strip (10) is fixed to the edge of the cover (3); when the elastic cleaning strip (10) is flipped over and the cover (3) is placed on the cover (2), the elastic cleaning strip (10) is released and the elastic cleaning strip (10) will abut against the outer wall of the cover (3).