Flat squeeze-in hose

Abstract

The utility model discloses a kind of flat hits into formula hose, including flat oval bottle body and cover body assembly. Bottle body top is connected with bottle head, and the outer peripheral wall of bottle head is equipped with thick first vertical convex strip and the fine second vertical convex strip in the corresponding area of bottle body long axis, and annular protrusion is equipped in the lower part of bottle head. The inner wall of annular cooperation part in cover body assembly is protruded with vertical rib, and the gap of rib forms wide gap matched with thick convex strip and narrow gap matched with fine convex strip with interference, and is equipped with annular clamping groove. When using, thick convex strip is guided along wide gap, and fine convex strip is extruded into narrow gap to provide pre-tightening force, and finally annular protrusion is clamped into annular clamping groove to complete locking by hitting action. The structure uses rib gap to replace processing groove, simplifies process, and locking is reliable, and cover body assembly can be bottle cap or pump head.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging containers, and in particular to the technical field of a flat, tap-in type flexible tube. Background Technology

[0002] Currently, the market offers a wide variety of soft tube packaging for cosmetics, creams, and similar products. While common screw caps provide a reliable seal, opening and closing them requires multiple turns, making them inconvenient. Ordinary pull-out caps, though quick to open and close, pose risks of incomplete sealing, easy loosening, or accidental popping open under pressure within the packaging. Furthermore, cylindrical soft tubes are less prone to deformation under pressure, potentially leading to product residue, and their appearance lacks novelty. Therefore, there is a need in the existing technology for a soft tube packaging that combines convenient opening and closing, reliable sealing, easy extrusion, and a novel appearance. Utility Model Content

[0003] The purpose of this invention is to solve the problems of inconvenient opening and closing, unreliable locking, and difficulty in squeezing out contents in existing flexible packaging. It proposes a flat, snap-in flexible tube that is easy to operate, has reliable locking, is easy to empty, and has a unique appearance.

[0004] To achieve the above objectives, this utility model proposes a flat, push-in flexible tube, comprising a bottle body and a cap assembly. The bottle body is a hollow, flat shell with an elliptical cross-section. A bottle head, which is annular, is connected to the top of the bottle body. At least four first vertical ridges are evenly arranged circumferentially on the outer peripheral wall of the bottle head. Multiple second vertical ridges are also densely arranged on the outer peripheral wall of the bottle head in two opposite regions corresponding to the long axis of the bottle body. A ring-shaped protrusion is provided at the lower part of the bottle head. The cap assembly has an annular mating part inside that adapts to the bottle head. Multiple vertical ribs protrude from the inner wall of the annular mating part, forming gaps between these ribs for the ridges on the bottle head to slide into. These gaps include wide gaps for sliding engagement with the first vertical ridges and narrow gaps for interference fit with the second vertical ridges. A ring-shaped groove is provided in the middle of the inner wall of the annular mating part. When the cap assembly is fastened to the bottle head, the first vertical protrusion slides into the wide gap for guidance, and the second vertical protrusion squeezes into the narrow gap to generate pre-tightening friction. By tapping, the annular protrusion on the bottle head passes over the upper edge of the annular mating part and is then locked into the annular groove, thus achieving final locking.

[0005] Preferably, the cap assembly is a bottle cap, comprising a cap body and a cap liner fitted within the cap body; the inner wall of the cap liner is provided with the vertical ribs and forms the annular mating part. This preferred embodiment provides a specific implementation of a split bottle cap, facilitating the separate manufacturing and replacement of the cap liner, and also facilitating cleaning.

[0006] Preferably, the cover assembly is a push-button pump head, and the base housing of the pump head has the annular mating part and its vertical ribs formed inside. This preferred solution expands the application scope of this utility model, making it easily adaptable to liquid products that require quantitative dispensing.

[0007] Preferably, the width of the first vertical protrusion is greater than the width of the second vertical protrusion. This preferred solution, through size differentiation, ensures that the thicker protrusion mainly undertakes the guiding function while the thinner protrusion mainly undertakes the function of providing frictional preload, thus clearly defining their roles and preventing interference between them.

[0008] Preferably, the cross-sectional shapes of the annular protrusion and the annular groove are mutually compatible arc shapes. This preferred solution ensures a smooth arc transition between the annular protrusion and the groove during insertion and opening, making the operation smoother and less strenuous.

[0009] Preferably, the cross-sectional shapes of the annular protrusion and the annular groove are mutually compatible trapezoids. This preferred solution utilizes the inclined guiding and straight locking characteristics of the trapezoid to provide a more secure locking effect and prevent accidental loosening.

[0010] Preferably, the bottle cap body is a hollow shell with an elliptical cross-section, its opening facing downwards, and its inner wall near the opening has a first annular groove. The bottle cap liner also includes an elliptical outer frame that matches the shape of the inner wall of the bottle cap body. The lower part of the outer peripheral wall of the elliptical outer frame has multiple second protrusions spaced circumferentially, and these second protrusions are interference-fitted into the first annular groove. This preferred embodiment provides a specific, reliable, and easy-to-assemble connection method between the bottle cap body and the liner.

[0011] Preferably, the first and second vertical protrusions on the bottle head extend downwards to the upper surface of the annular protrusion. This preferred embodiment allows the ends of the protrusions to smoothly connect with the annular protrusion, resulting in an aesthetically pleasing appearance and facilitating demolding during manufacturing.

[0012] Preferably, the first and second vertical protrusions on the bottle head extend downwards and pass over the annular protrusion.

[0013] The beneficial effects of this utility model are: 1. Clear and reliable locking process: The three-stage locking mechanism of "guidance-pre-tightening-locking" provides clear tactile and audible feedback ("click" sound) to ensure the reliability and sealing of the locking.

[0014] 2. Simplified structure and easy manufacturing: The cap assembly utilizes the natural gaps between the vertical ribs to cooperate with the bottle head protrusions, replacing the complex independent slotted structure, simplifying mold design and manufacturing process, and reducing costs.

[0015] 3. High versatility: The cap assembly can be specifically implemented as a bottle cap or a press-type pump head, making the snap-in locking structure widely applicable to different types of packaging.

[0016] 4. Excellent user experience: The flat bottle body is more ergonomic, easy to grip and squeeze, and can effectively reduce contents residue; the tap-to-open and close method is faster than screw caps and more reliable than ordinary plug caps.

[0017] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0018] Figure 1 This is an overall perspective view of Embodiment 1 of this utility model; Figure 2 This is a front sectional view of Embodiment 1 of the present invention; Figure 3 This is a three-dimensional view of the bottle body of this utility model; Figure 4 This is a three-dimensional view of the bottle cap body of this utility model; Figure 5 This utility model provides a three-dimensional bottle cap inner liner. Figure 1 (Mainly showcasing the external structure); Figure 6 This utility model provides a three-dimensional bottle cap inner liner. Figure 2 (Mainly showcasing the internal vertical rib structure).

[0019] In the diagram: 1. Bottle body; 2. Bottle head; 21a. First vertical convex strip; 21b. Second vertical convex strip; 22. Annular protrusion; 3. Bottle cap body; 31. First annular groove; 4. Bottle cap inner liner; 41. Elliptical outer frame; 42. Second protrusion; 43. Circular structure; 44. Vertical rib; 45. Annular slot. Detailed Implementation

[0020] See Figures 1-6 This utility model includes a bottle body 1 and a cap assembly connected to the bottle body 1; the bottle body 1 is a hollow, flat shell with an elliptical cross-section. The top of the bottle body 1 is connected to a bottle head 2, which is circular. The outer peripheral wall of the bottle head 2 is uniformly provided with at least four first vertical ridges 21a along the circumference. On the outer peripheral wall of the bottle head 2, which corresponds to two opposite areas in the long axis direction of the bottle body 1, a plurality of second vertical ridges 21b are also densely provided. The lower part of the bottle head 2 is provided with an annular protrusion 22. The cap assembly has an annular mating part inside that is adapted to the bottle head 2. The inner wall of the annular mating part has multiple vertical ribs protruding, and gaps are formed between these vertical ribs for the protrusions on the bottle head 2 to slide into. These gaps include a wide gap for sliding fit with the first vertical protrusion 21a, and a narrow gap for interference fit with the second vertical protrusion 21b. The inner wall of the annular mating part has an annular groove in the middle. When the cap assembly is fastened to the bottle head 2, the first vertical protrusion 21a slides into the wide gap for guidance, and the second vertical protrusion 21b squeezes into the narrow gap to generate pre-tightening friction. By tapping, the annular protrusion 22 on the bottle head 2 passes over the upper edge of the annular mating part and is then locked into the annular groove, thus achieving final locking.

[0021] The working process of this utility model: The working process of this utility model, a flat, tapped flexible tube, is described in conjunction with the accompanying drawings.

[0022] Example 1: The bottle body 1 is a hollow, flexible shell with an elliptical cross-section. A bottle head 2 is attached to the top of the bottle body 1; the bottle head 2 is a ring-shaped structure, wider at the bottom and narrower at the top. Four first vertical ridges 21a are evenly distributed along the circumference of the outer wall of the bottle head 2. In two regions corresponding to the long axis of the bottle body 1, multiple slender second vertical ridges 21b are also densely arranged on the outer wall of the bottle head 2. A ring-shaped protrusion 22 is located at the bottom of the bottle head 2.

[0023] The cap assembly is a bottle cap, consisting of a cap body 3 and a cap liner 4. The cap body 3 is an elliptical hollow shell with a first annular groove 31 on its inner wall. The cap liner 4 is fixed by being engaged into the first annular groove 31 via a second protrusion 42. The core of this embodiment is that the inner wall of the annular structure 43 of the cap liner 4 has multiple vertical ribs 44 protruding. The gaps between these vertical ribs 44 naturally form a functional structure that cooperates with the protrusion system on the bottle head 2: the wider gap is used to accommodate and guide the sliding of the first vertical protrusion 21a, while the narrower gap is used to create an interference fit with the second vertical protrusion 21b, providing pre-tightening friction. A ring groove 45 is also provided in the middle of the inner wall of the annular structure 43.

[0024] When closing, align the bottle cap with the bottle head 2, and the first vertical protrusion 21a slides into the wide gap for guidance. Subsequently, the second vertical protrusion 21b squeezes into the narrow gap, generating significant frictional resistance to pre-tighten the bottle cap. Finally, a pressing force is applied, causing the annular protrusion 22 on the bottle head 2 to pass over the upper edge of the annular structure 43 and engage with the annular groove 45, completing the locking process with a "click" sound.

[0025] Example 2: This embodiment provides a flat tapping hose with a press-type pump head.

[0026] The bottle body 1 and bottle head 2 are exactly the same as in Embodiment 1. The improvement in this embodiment is that the cap assembly is a push-button pump head. The base housing of this pump head has a ring-shaped mating part directly formed inside, which has the same function as the ring structure 43 in Embodiment 1. That is, its inner wall is also provided with vertical ribs, forming wide and narrow gaps. Its installation and locking method is exactly the same as in Embodiment 1.

[0027] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A flat, push-in flexible tube, comprising a bottle body (1) and a cap assembly connected to the bottle body (1), characterized in that: The bottle body (1) is a hollow, flat shell with an elliptical cross-section; The bottle body (1) is connected to a bottle head (2) at the top, and the bottle head (2) is circular; at least four first vertical ridges (21a) are evenly arranged on the outer peripheral wall of the bottle head (2) along the circumferential direction; a plurality of second vertical ridges (21b) are also densely arranged on the outer peripheral wall of the bottle head (2) in two opposite areas corresponding to the long axis of the bottle body (1); and a ring protrusion (22) is provided at the lower part of the bottle head (2). The cap assembly has an annular fitting part inside that is adapted to the bottle head (2). The inner wall of the annular fitting part has a plurality of vertical ribs protruding, and gaps are formed between these vertical ribs for the protrusions on the bottle head (2) to slide into. These gaps include a wide gap for sliding fit with the first vertical protrusion (21a) and a narrow gap for interference fit with the second vertical protrusion (21b). The inner wall of the annular fitting part has an annular groove in the middle. When the cap assembly is fastened to the bottle head (2), the first vertical protrusion (21a) slides into the wide gap for guidance, and the second vertical protrusion (21b) squeezes into the narrow gap to generate pre-tightening friction. By tapping, the annular protrusion (22) on the bottle head (2) passes over the upper edge of the annular mating part and is then locked into the annular groove, thus achieving final locking.

2. The flat, insertable flexible tube according to claim 1, characterized in that: The cap assembly is a bottle cap, which includes a bottle cap body (3) and a bottle cap liner (4) assembled inside the bottle cap body (3); the inner wall of the bottle cap liner (4) is provided with the vertical ribs and forms the annular mating part.

3. The flat, insertable flexible tube according to claim 1, characterized in that: The cover assembly is a press-type pump head, and the base housing of the pump head has the annular mating part and its vertical ribs formed inside.

4. The flat, insertable flexible tube according to claim 1, characterized in that: The width of the first vertical protrusion (21a) is greater than the width of the second vertical protrusion (21b).

5. The flat, insertable flexible tube according to claim 1, characterized in that: The cross-sectional shapes of the annular protrusion (22) and the annular groove are mutually compatible arc shapes.

6. The flat, insertable flexible tube according to claim 1, characterized in that: The cross-sectional shapes of the annular protrusion (22) and the annular groove are mutually compatible trapezoidal.

7. The flat, insertable flexible tube according to claim 2, characterized in that: The bottle cap body (3) is a hollow shell with an elliptical cross-section, with its opening facing downwards, and a first annular groove (31) is provided on its inner wall near the opening; the bottle cap liner (4) also includes an elliptical outer frame (41) that matches the shape of the inner wall of the bottle cap body (3), and a plurality of second protrusions (42) are provided at intervals along the circumference on the lower part of the outer peripheral wall of the elliptical outer frame (41), and the second protrusions (42) are interference-fitted into the first annular groove (31).

8. The flat, insertable flexible tube according to any one of claims 1 to 7, characterized in that: The first vertical protrusion (21a) and the second vertical protrusion (21b) on the bottle head (2) extend downward to the upper surface of the annular protrusion (22).

9. The flat, tapped flexible tube according to any one of claims 1 to 7, characterized in that: The first vertical protrusion (21a) and the second vertical protrusion (21b) on the bottle head (2) extend downward and over the annular protrusion (22).

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