An assembled hose bottle

The threaded connection design between the inner plug and the outer ring solves the problem that existing tubular bottles cannot be reused, enabling convenient disassembly and cleaning, improving product utilization, and making it suitable for industrial production.

CN224589745UActive Publication Date: 2026-08-04ZHIMING (JIANGSU) NEW MATERIALS IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHIMING (JIANGSU) NEW MATERIALS IND CO LTD
Filing Date
2025-09-22
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing tubular bottles cannot be reused during the manufacturing process and cannot be easily disassembled and cleaned, resulting in low product utilization.

Method used

It adopts an assembly design, which achieves tight compression and disassembly of the tubular bottle through the threaded connection between the inner plug and the outer ring. The matching structure of the limiting protrusion and the constricted part realizes sealing and convenient disassembly.

Benefits of technology

It enables convenient disassembly and cleaning of the tubular bottle, improves product utilization, and is suitable for industrial production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an assembled hose bottle, including the hose body, the pipe head and the pipe cover, the hose body bottom inserts the inner plug, the inner plug includes the insertion part in the insertion of the hose body, the insertion part outer periphery surface integral setting has the limit bulge, still include having the outer thread connecting portion outside the hose body, the outer periphery surface of the hose body is movably sleeved with the outer ring, the inner thread portion and the outer thread connecting portion are connected, when, the necked portion extrusion hose body is set at the limit bulge, because the cooperation setting of inner plug and outer ring, when the outer ring is screwed on the inner plug, can tightly press together to seal to the hose body, to complete the assembly of hose bottle, the whole is convenient to dismantle, after dismantling, the hose body is cleaned thoroughly and can be repeatedly used, improve the utilization of product, the device is applicable to the industrial production, has very strong practicality.
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Description

Technical Field

[0001] This utility model belongs to the technical field of flexible tube bottles, and particularly relates to an assembled flexible tube bottle. Background Technology

[0002] A patent application (CN201610260581.1) entitled "A Novel Toothpaste Tube Packaging Bottle" is disclosed in the existing Chinese patent database. Its main features are: three evenly distributed toothpaste nozzles perpendicular to the center line of the neck are provided around the outer diameter of the bottle's upper neck; a cylindrical rotating post for controlling the toothpaste dispensing direction is provided inside the first dispensing hole; a first circular hole is provided below the center line of the rotating post; a second circular hole is provided at the upper left end of the first circular hole, perpendicular to and communicating with it. When the rotating post is rotated, the second circular hole can communicate with three corresponding second dispensing holes of the three toothpaste caps marked A, B, and C on its upper surface, and can also seal with a cylindrical sealing sleeve; an arrow mark is provided on the upper left side of the straight handle, pointing in the same direction as the second circular hole. This invention allows three people to hygienically use one nozzle to dispense toothpaste when sharing a bottle of toothpaste, promoting hygienic brushing, reducing bacterial or viral transmission, and improving overall health.

[0003] Currently, most tubular containers for ointments on the market are manufactured using a process where the head is injection molded and welded, and the tail is formed by heating and cold pressing. Containers produced by this method are mostly unusable and have certain limitations. Therefore, this solution aims to propose an assembled tubular bottle. By inserting the bottom of the tubular bottle into the inner stopper and screwing the outer ring onto the inner stopper, the two work together to compress the tubular body to form a tight seal, thus completing the assembly of the tubular bottle. After use, the tubular bottle is easy to disassemble, allowing the inside of the used tubular bottle to be cleaned from the bottom for reuse. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a detachable, assembled tubular bottle. In order to improve its shortcomings, this utility model provides an assembled tubular bottle.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] An assembled tubular bottle includes a tubular body, a tube head, and a tube cap. An inner plug is inserted into the bottom of the tubular body. The inner plug includes a plug portion inserted into the tubular body. A limiting protrusion is integrally provided on the outer peripheral surface of the plug portion. It also includes an externally threaded connection portion located outside the tubular body. An outer ring is movably sleeved on the outer peripheral surface of the tubular body. A constricted portion and an internally threaded portion are respectively provided inside the outer ring. When the internally threaded portion is connected to the externally threaded connection portion, the constricted portion presses the tubular body against the limiting protrusion.

[0007] As a preferred embodiment, the limiting protrusion protrudes 1mm outward from the inner plug, and the constricted portion is recessed 1.2mm inward from the outer ring.

[0008] As a preferred embodiment, the bottom of the inner plug is integrally provided with a limiting stop edge. When the outer ring and the inner plug are screwed into place, the lower end face of the outer ring is set to fit against the upper surface of the limiting stop edge.

[0009] As a preferred embodiment, the tube head and the hose body are integrally injection molded, with an external thread on the outside of the tube head and an internal thread inside the tube cap that mates with the external thread, and are screwed onto the tube head.

[0010] As a preferred embodiment, the upper outer peripheral surface of the outer ring and the upper outer peripheral surface of the inner plug are both inclined upward tapered surfaces.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: due to the matching arrangement of the inner plug and the outer ring, when the outer ring is screwed onto the inner plug, the hose body can be tightly pressed together to achieve a seal, thereby completing the assembly of the hose bottle. The whole is easy to disassemble. After disassembly, the inside of the hose body can be cleaned and reused, which improves the utilization rate of the product. This device is suitable for industrial production and has strong practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0014] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0015] In the diagram: 1. Hose body, 2. Hose head, 3. Hose cap, 4. Inner plug, 401. Insertion part, 402. Limiting protrusion, 403. External thread connection part, 5. Outer ring, 501. Narrowing part, 502. Internal thread part, 6. Limiting stop. Detailed Implementation

[0016] The technical solution of this application will be further described below with reference to the accompanying drawings and embodiments.

[0017] like Figure 1-3As shown, an assembled tubular bottle includes a tubular body 1, a tube head 2, and a tube cap 3. An inner plug 4 is inserted into the bottom of the tubular body 1. The inner plug 4 includes a plug portion 401 inserted into the tubular body 1, with a limiting protrusion 402 integrally formed on the outer circumferential surface of the plug portion 401. It also includes an externally threaded connection portion 403 located outside the tubular body 1. An outer ring 5 is movably fitted onto the outer circumferential surface of the tubular body 1. A constriction portion 501 and an internally threaded portion 502 are respectively provided inside the outer ring 5. When the internally threaded portion 502 is connected to the externally threaded connection portion 403, the constriction portion 501 presses the tubular body 1 at the limiting protrusion 402. The limiting protrusion 402 protrudes 1 mm outward from the inner plug 4, and the constriction portion 501 is recessed 1.2 mm inward from the outer ring 5. A limiting flange 6 is integrally formed at the bottom of the inner plug 4. When the outer ring 5 and the inner plug 4 are screwed into place, the lower end face of the outer ring 5 is aligned with the upper surface of the limiting flange 6. The tube head 2 and the hose body 1 are integrally injection molded. The tube head 2 has external threads, and the tube cap 3 has internal threads that mate with the external threads, and is screwed onto the tube head 2. The upper outer circumferential surface of the outer ring 5 and the upper outer circumferential surface of the inner plug 4 are both inclined upward tapered surfaces.

[0018] The manufacturing and assembly process of this product is as follows: First, the inner plug 4 and outer ring 5 are manufactured by injection molding. The inner plug 4 and outer ring 5 are made of plastic plugs, with polyethylene plastic (PE) as the main raw material. They are formed in one injection molding process to meet the sealing requirements. The hose body 1 is made of aluminum-plastic material by extrusion molding. During the assembly process, the outer ring 5 is first sleeved on the outside of the hose body 1. Then, the inner plug 4 is pressed into the bottom opening of the hose body 1. Since the diameter of the limiting protrusion 402 is slightly larger than the inner diameter of the hose body 1, the limiting protrusion 402 of the inner plug 4 slightly squeezes the hose body 1 and deforms it outward. Then, the outer ring 5 is moved downward so that the internal thread 502 of the outer ring 5 is screwed into the external thread connection 403 of the inner plug 4. When the outer ring 5 is rotated to the bottom, the position of the constriction 501 inside the outer ring 5 corresponds exactly to the position of the limiting protrusion 402 in the inner plug 4, which tightly presses the hose body 1 together to form a seal.

[0019] In addition, the disassembly and reassembly structure of the inner plug 4 and the outer ring 5 can be used simultaneously at the top of the tube body 1 to replace the connection method of the tube head 2 and the tube cap 3. It should be noted that the tube bottle should be used as a container for viscous substances such as pastes.

[0020] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. An assembled tubular bottle, comprising a tubular body (1), a tube head (2), and a tube cap (3), characterized in that: The bottom of the hose body (1) is fitted with an inner plug (4). The inner plug (4) includes a plug part (401) inserted into the hose body (1). The outer peripheral surface of the plug part (401) is integrally provided with a limiting protrusion (402). It also includes an external threaded connection part (403) located outside the hose body (1). An outer ring (5) is movably fitted on the outer peripheral surface of the hose body (1). The outer ring (5) is provided with a constriction part (501) and an internal thread part (502) respectively. When the internal thread part (502) is connected to the external threaded connection part (403), the constriction part (501) squeezes the hose body (1) at the limiting protrusion (402).

2. The assembled tubular bottle according to claim 1, characterized in that: The limiting protrusion (402) is set to protrude 1mm outward from the inner plug (4), and the constricted part (501) is set to be recessed 1.2mm inward from the outer ring (5).

3. The assembled tubular bottle according to claim 2, characterized in that: The bottom of the inner plug (4) is integrally provided with a limiting stop (6). When the outer ring (5) and the inner plug (4) are screwed into place, the lower end face of the outer ring (5) is attached to the upper surface of the limiting stop (6).

4. An assembled tubular bottle according to any one of claims 1-3, characterized in that: The tube head (2) and the hose body (1) are integrally injection molded. The tube head (2) has an external thread, and the tube cap (3) has an internal thread that mates with the external thread. It is screwed onto the tube head (2).

5. The assembled tubular bottle according to claim 4, characterized in that: The upper outer circumferential surface of the outer ring (5) and the upper outer circumferential surface of the inner plug (4) are both set as inclined upward conical surfaces.