BFS plastic bottle with repeated sealing function

By designing an ellipsoidal sealing body and ellipsoidal sealing opening on the BFS plastic bottle, combined with the structural design of tail fins and reinforcing ribs, the problem of traditional BFS plastic bottles being unable to be resealed is solved, improving sealing stability and structural strength, and preventing liquid leakage.

CN223574910UActive Publication Date: 2025-11-21SHINVA MEDICAL INSTR CO LTD
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Patent Information

Application Number
CN202422809350.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-11-21
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

Traditional BFS plastic bottles cannot be resealed after one use, causing the liquid to come into contact with outside air, affecting sterility assurance. Furthermore, the seal is prone to leakage due to compression, resulting in poor seal stability.

Method used

A BFS plastic bottle with an ellipsoidal sealing body and an ellipsoidal sealing port was designed. Repeated sealing is achieved by inserting the sealing body into the sealing port of the broken ball. The structural stability is enhanced by the tail fin, the twisting point, and the reinforcing ribs to prevent accidental cracking.

Benefits of technology

It achieves a stable engagement between the sealing body and the sealing port, improves the sealing effect, prevents liquid leakage, and enhances sealing stability and structural strength.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223574910U_ABST
    Figure CN223574910U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of BFS plastic bottle structure improvement, and particularly relates to a BFS plastic bottle with a repeated sealing function, which comprises a bottle body, a fracture ball is arranged at the upper end of the bottle body, a twist-off head is connected to the fracture ball, a handle is connected to the twist-off head, a sealing body is connected to the top of the handle, an ellipsoidal sealing opening is arranged in a liquid outlet of the fracture ball, and the ellipsoidal sealing opening is communicated with the bottle body. The sealing body is in a quasi-ellipsoid shape matched with the sealing opening, and the length of the long axis of the sealing body is larger than that of the long axis of the sealing opening. The BFS plastic bottle with the repeated sealing function is provided with the ellipsoidal sealing body and the ellipsoidal sealing opening, so that the sealing body can be clamped into the sealing opening, and the sealing stability is better; moreover, as the size of the sealing body is slightly larger than that of the sealing opening, the outer side face of the sealing body can be tightly attached to the sealing opening, and the sealing effect is better.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of BFS plastic bottles with repeated sealing function, belong to BFS plastic bottle structure improvement technical field. BACKGROUND

[0002] BFS refers to bottle-blowing-filling-closing integrated technology, which is a kind of aseptic production process integrating container manufacturing, product filling and container closing, and is suitable for aseptic liquid preparation production of various plastic bottles, such as respiratory fluid, eye drops and beauty cosmetics, etc. The traditional BFS plastic bottle cannot be sealed again after being opened once, and the liquid agent in some larger capacity BFS plastic bottles is usually not used up at one time, which will cause the liquid agent to be in direct contact with the outside air, thereby affecting the asepticity of the liquid agent.

[0003] Therefore, the Chinese utility model patent with the authorization announcement number CN213466014U discloses an eye drop bottle head that can be sealed again after being opened, which is provided with a sealing body on the square handle that is matched with the bottle opening. After being used once, the sealing body is inserted into the break ball to achieve the sealing purpose. However, the sealing body is conical, and when the BFS plastic bottle is accidentally squeezed, the sealing body is easily squeezed out of the break ball, causing accidental leakage of the liquid agent, and the sealing stability is poor. UTILITY MODEL CONTENT

[0004] According to the above deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a BFS plastic bottle with repeated sealing function and good sealing stability.

[0005] The BFS plastic bottle with repeated sealing function, disclosed by the utility model, comprises a bottle body, an upper end of the bottle body is provided with a break ball, the break ball is connected with a break head, the break head is connected with a handle, a top of the handle is connected with a sealing body, an outlet of the break ball is provided with an ellipsoidal sealing opening, the sealing body is ellipsoidal and matched with the sealing opening, and a long axis length of the sealing body is greater than that of the sealing opening.

[0006] Further, a top of the handle is provided with a groove, the sealing body is arranged at the bottom of the groove, and the groove is arranged on one side to save materials and reduce costs, and on the other side, the sealing body is hidden in the groove to prevent accidental breakage of the sealing body and play a protective role.

[0007] Further, at least one tail wing is arranged on the handle, at least one break point is connected between the tail wing and the bottle body, the handle and the bottle body are connected into a whole through the tail wing and the break point, so that accidental cracking of the connection between the break head and the break ball of the handle caused by squeezing or misoperation is prevented, and a protective role is played.

[0008] Further, the left and right sides of the bottle body are provided with sealing edges, the number of the tail wings is two, and the two tail wings correspond to the two sealing edges respectively, the twist breaking points are arranged between the tail wings and the sealing edges, the tail wings correspond to the sealing edges, the structural layout is more reasonable, and the twist breaking points are arranged between the two tail wings and the two sealing edges respectively, so that the connecting strength between the tail wings and the sealing edges can be effectively increased, and the protection effect of the handle is better.

[0009] Further, the tail wing corresponds to two twist breaking points, and the two twist breaking points are located at the two ends of the bottom of the tail wing, so that the structure is simple, twist breaking is facilitated, the connecting strength is high, and accidental damage can be prevented.

[0010] Further, the handle is provided with a reinforcing rib, and the reinforcing rib can effectively increase the structural strength of the handle.

[0011] Further, the reinforcing rib extends to the tail wing, and the reinforcing rib can effectively increase the structural strength of the tail wing.

[0012] Working principle and process:

[0013] When the product is transported and stored, the handle and the bottle body are connected into an integrated body through the tail wing, the twist breaking point and the sealing edge, so that accidental cracking of the connecting part between the twist breaking head and the broken ball can be effectively prevented; when the product is used, the tail wing is pushed in advance, so that the twist breaking points are broken, and then the handle is rotated, so that the twist breaking head and the broken ball are separated, and opening is completed; after the product is used once, the handle is inverted, and then the sealing body is inserted into the sealing opening in the broken ball, so that repeated sealing of the product is realized.

[0014] The BFS plastic bottle with the repeated sealing function has the beneficial effects that, compared with the prior art:

[0015] The BFS plastic bottle with the repeated sealing function has the beneficial effects that, compared with the prior art: BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a front view of the utility model;

[0017] Figure 2 is Figure 1 is an enlarged view of M in figure;

[0018] Figure 3 is a left view of the utility model;

[0019] Figure 4 is a structure schematic view of the repeated sealing of the utility model.

[0020] In the diagram: 1. Bottle body; 2. Sealing edge; 3. Broken ball; 4. Tightening head; 5. Reinforcing rib; 6. Groove; 7. Sealing body; 8. Tail wing; 9. Tightening break point; 10. Handle; 11. Sealing port. Detailed Implementation

[0021] The embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0022] Example 1:

[0023] like Figure 1 As shown, the BFS plastic bottle with resealable function of this utility model includes a bottle body 1. The upper end of the bottle body 1 is provided with a broken ball 3. A screw-off head 4 is connected to the broken ball 3. A handle 10 is connected to the screw-off head 4. A sealing body 7 is connected to the top of the handle 10. An ellipsoidal sealing port 11 is provided in the liquid outlet of the broken ball 3. The sealing body 7 is an ellipsoidal shape adapted to the sealing port 11. The major axis of the sealing body 7 is longer than the major axis of the sealing port 11.

[0024] When using the product, rotating the handle 10 will separate the break-off head 4 from the break-off ball 3, thus completing the opening; after one use, if... Figure 4 As shown, the handle 10 is inverted, and then the sealing body 7 is inserted into the sealing port 11 inside the broken ball 3 to achieve repeated sealing of the product. Since the sealing body 7 is ellipsoidal and the sealing port 11 is ellipsoidal, the sealing body 7 can be snapped into the sealing port 11, resulting in good sealing stability. Furthermore, since the size of the sealing body 7 is slightly larger than the size of the sealing port 11, it can be ensured that the outer surface of the sealing body 7 fits tightly with the sealing port 11, resulting in a better sealing effect.

[0025] Example 2:

[0026] like Figures 1 to 4 As shown, based on Example 1,

[0027] Furthermore, the top of the handle 10 is provided with a groove 6, and the sealing body 7 is provided at the bottom of the groove 6. The groove 6 can save materials and reduce costs; on the other hand, by hiding the sealing body 7 in the groove 6, it can prevent the sealing body 7 from breaking accidentally and play a protective role.

[0028] Furthermore, the handle 10 is provided with at least one tail wing 8, and at least one screw-off point 9 is connected between the tail wing 8 and the bottle body 1. The handle 10 and the bottle body 1 are connected as one unit through the tail wing 8 and the screw-off point 9, thereby preventing the screw-off head 4 from accidentally cracking at the connection with the broken ball 3 when the handle 10 is squeezed or misoperated, thus playing a protective role.

[0029] Further, the bottle body 1 is provided with sealing edges 2 on the left and right sides, the number of the tail wings 8 is two, the two tail wings 8 correspond to the two sealing edges 2 respectively, the twist breaking points 9 are arranged between the sealing edges 2 and the tail wings 8, the tail wings 8 correspond to the sealing edges 2, the structure layout is more reasonable, and the twist breaking points 9 are arranged between the two tail wings 8 and the two sealing edges 2 respectively, the connecting strength between the tail wings 8 and the sealing edges 2 can be effectively increased, and the protection effect of the handle 10 is better;

[0030] Further, each of the tail wings 8 corresponds to two twist breaking points 9, and the two twist breaking points 9 are located at the two ends of the bottom of the tail wing 8, so that the structure is simple, the connecting strength is high, and the twist breaking is facilitated.

[0031] Further, the handle 10 is provided with a reinforcing rib 5, and the reinforcing rib 5 can effectively increase the structural strength of the handle 10.

[0032] Further, the reinforcing rib 5 extends to the tail wing 8, and the reinforcing rib 5 can effectively increase the structural strength of the tail wing 8.

[0033] It is particularly pointed out that, in the description of the utility model, the directions or position relations indicated by the terms 'left', 'right' and the like are the directions or position relations shown based on the drawings, and are only for the convenience of describing the utility model, and the utility model does not have to be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

Claims

1. A BFS plastic bottle with a resealable function, comprising a bottle body (1), a break ball (3) at the upper end of the bottle body (1), a screw-off head (4) connected to the break ball (3), a handle (10) connected to the screw-off head (4), and a sealing body (7) connected to the top of the handle (10), characterized in that: The liquid outlet of the breakable ball (3) is provided with an ellipsoidal sealing opening (11), the sealing body (7) is ellipsoidal and matches the sealing opening (11), and the long axis length of the sealing body (7) is greater than that of the sealing opening (11); the handle (10) is provided with at least one tail wing (8), and at least one break point (9) is connected between the tail wing (8) and the bottle body (1); the bottle body (1) is provided with sealing edges (2) on the left and right sides, the number of the tail wings (8) is two, the two tail wings (8) correspond to the two sealing edges (2) respectively, and the break points (9) are arranged between the sealing edges (2) and the tail wings (8); each tail wing (8) corresponds to two break points (9), and the two break points (9) are located at the two ends of the bottom of the tail wing (8); the handle (10) is provided with a reinforcing rib (5); and the reinforcing rib (5) extends to the tail wing (8).

2. The BFS plastic bottle with repeated sealing function according to claim 1, characterized in that: The top of the handle (10) is provided with a groove (6), and the sealing body (7) is arranged at the bottom of the groove (6).

Citation Information

Patent Citations

  • Eye drop bottle head capable of being sealed again after opening

    CN213466014U