An integrated easy open welded lid

By designing an integrated easy-open welded cap, the problems of time-consuming and labor-intensive use and poor sealing effect of existing bottle caps during use and transportation are solved. It achieves protection of the sealing effect during transportation and requires no tools to operate, thus improving ease of use and sealing reliability.

CN224448735UActive Publication Date: 2026-07-03GUANGZHOU MENSHEN PACKAGING

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU MENSHEN PACKAGING
Filing Date
2025-06-16
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing bottle caps are time-consuming, labor-intensive, and have poor sealing performance during use and transportation.

Method used

An integrated easy-open weldable cover was designed, including a base, a discharge nozzle, a sealing structure, an outer cover, and a tear strip. The tear strip is fixedly connected to the mounting part. The outer cover is provided with a screw hole. The sealing structure is connected to the discharge nozzle through a thin-walled structure. The whole is injection molded. The outer cover can be screwed to discharge material to avoid wear. No tools are required when using it.

Benefits of technology

It achieves a protective sealing effect during transportation, is simple and labor-saving to operate, avoids the use of tools, and improves the convenience of use and sealing reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to an integrated easy-open welded cap, the key technical points of which are: it includes a base, a discharge nozzle, a sealing structure, and an outer cover; the discharge nozzle is mounted on the base; an installation part is provided on the outer side of the discharge nozzle; several tear strips are vertically arranged at the bottom of the outer cover; the outer cover is fixedly connected to the installation part through the tear strips; a thin-walled structure is provided at the bottom of the sealing structure; the sealing structure is covered on the discharge end of the discharge nozzle through the thin-walled structure; symmetrical screw holes are provided on both sides of the outer cover for unscrewing the sealing structure from the discharge nozzle; the overall structure is stable, and by providing an outer cover, the sealing structure and the discharge nozzle can be prevented from being squeezed and worn during transportation, thereby ensuring the sealing effect; in use, the sealing structure is inserted into the screw hole, and the sealing structure can be unscrewed by rotating the outer cover, without the need for other tools, making the operation convenient, time-saving and labor-saving.
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Description

Technical Field

[0001] This utility model relates to the field of bottle cap technology, and more specifically, to an integrated easy-open welded cap. Background Technology

[0002] A welded cap for packaging bottles is a type of cap used to seal packaging bottles. It is typically made of plastic or other suitable welding materials and is tightly bonded to the bottle opening via hot-melt welding to ensure the contents are not contaminated and to extend shelf life. However, it usually requires tools such as scissors or blades to cut open the welded cap, which is time-consuming, laborious, and inconvenient. Furthermore, existing welded caps for packaging bottles are susceptible to wear and tear during stacking and transportation, affecting the sealing effect. Therefore, we propose a new one-piece easy-open welded cap. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an integrated easy-open welded cover to solve the technical problems existing in the background art.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an integrated easy-open weldable cover, comprising: a base, a discharge nozzle, a sealing structure, and an outer cover; the discharge nozzle is mounted on the base; an installation part is provided on the outer side of the discharge nozzle; a plurality of tear strips are vertically arranged at the bottom of the outer cover; the outer cover is fixedly connected to the installation part through the tear strips; a thin-walled structure is provided at the bottom of the sealing structure; the sealing structure is covered at the discharge end of the discharge nozzle through the thin-walled structure; and screw holes are symmetrically arranged on both sides of the outer cover for screwing the sealing structure out of the discharge nozzle.

[0005] Optionally, the outer walls of the sealing structure protrude outwards on both sides to form two symmetrical protrusions.

[0006] Optionally, the screw hole is symmetrically provided with bayonets that are adapted to the protrusion.

[0007] Optionally, the sealing structure is a sealing structure made of hot-melt plastic material; the sealing structure has a feeding channel communicating with the discharge nozzle, so that the material can be filled into the container through the feeding channel and the discharge nozzle; the feeding channel is sealed by hot-melt extrusion of the sealing structure.

[0008] Optionally, the outer cover is provided with a hollow structure.

[0009] Optionally, the base, discharge nozzle, sealing port, tear strip, outer cover, and mounting part are integrally injection molded.

[0010] This utility model has a stable overall structure. By providing an outer cover, it can prevent the sealing structure and the discharge nozzle from being squeezed and worn during transportation, thereby ensuring the sealing effect. When in use, the sealing structure is inserted into the screw hole, and the sealing structure can be screwed off by rotating the outer cover. No other tools such as scissors or blades are required, making the operation convenient, time-saving and labor-saving. Attached Figure Description

[0011] Figure 1 This is an assembly drawing of this utility model;

[0012] Figure 2 This is a schematic diagram of the sealing structure and the discharge nozzle during assembly of this utility model.

[0013] In the diagram: 1. Base; 2. Discharge nozzle; 3. Sealing structure; 4. Outer cover; 5. Mounting part; 6. Tear strip; 7. Thin-walled structure; 8. Twisting hole; 9. Protrusion; 10. Bayonet; 11. Hollowed-out structure. Detailed Implementation

[0014] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0015] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0016] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 As shown, this utility model provides an integrated easy-open weldable cover, including: a base 1, a discharge nozzle 2, a sealing structure 3, and an outer cover 4; the discharge nozzle 2 is mounted on the base 1; an installation part 5 is provided on the outer side of the discharge nozzle 2; several tear strips 6 are vertically arranged at the bottom of the outer cover 4; the outer cover 4 is fixedly connected to the installation part 5 through the tear strips 6; a thin-walled structure 7 is provided at the bottom of the sealing structure 3; the sealing structure 3 covers the discharge end of the discharge nozzle 2 through the thin-walled structure 7; screw holes 8 are symmetrically arranged on both sides of the outer cover 4 for screwing the sealing structure 3 out of the discharge nozzle 2; the base 1, discharge nozzle 2, sealing opening, tear strips 6, outer cover 4, and installation part 5 are integrally injection molded.

[0019] In this embodiment, as Figure 1-2As shown, the tear strip 6 has a certain degree of extensibility and can resist compression and breakage. In this embodiment, there are 4 tear strips 6. In other embodiments, the number can be increased or decreased according to the actual situation. The outer cover 4 is covered by the tear strip 6 on the outside of the discharge nozzle 2 and the sealing structure 3, so as to protect the discharge nozzle 2 and the sealing structure from external impact during stacking and transportation, and avoid product compression and wear, which would affect the sealing effect. When in use, the outer cover 4 is unscrewed from the mounting part 5, and then the sealing structure connected to the discharge nozzle 2 is placed in the screw hole 8 on the outer cover 4. The outer cover 4 is rotated to unscrew the sealing structure from the discharge nozzle 2 for user use. The overall structure is stable. By setting the outer cover 4, the sealing structure and the discharge nozzle 2 can be prevented from being squeezed and worn during transportation, thereby ensuring the sealing effect. When in use, the sealing structure is put into the screw hole 8, and the sealing structure can be unscrewed by rotating the outer cover 4. No scissors or blades or other tools are required. The operation is convenient, time-saving and labor-saving.

[0020] Furthermore, the outer walls of the sealing structure 3 protrude outwards on both sides to form two symmetrical protrusions 9; the screw hole 8 is symmetrically provided with a latch 10 that matches the protrusions 9.

[0021] In this embodiment, as Figure 1-2 As shown, a protrusion 9 and a latch 10 are respectively provided in the sealing structure and the screw hole 8, which can prevent slippage during the screwing process and make it convenient for the user to screw off the sealing structure.

[0022] Optionally, the sealing structure 3 is a sealing structure 3 made of hot melt plastic material; the sealing structure 3 has a feeding channel that communicates with the discharge nozzle 2 so that the material can be filled into the container through the feeding channel and the discharge nozzle 2; the feeding channel is sealed by hot melt extrusion of the sealing structure 3.

[0023] In one embodiment, such as Figure 1-2 As shown, the sealing structure is a cylindrical structure with a feeding channel. When the welding cap is assembled and fixed on the bottle mouth, the bottle can be filled with material through the feeding channel and the outlet 2. After filling, the sealing structure is hot-melted and extruded to close the feeding channel and complete the sealing operation of the sealing structure on the outlet 2 to ensure the sealing effect between the welding cap and the bottle.

[0024] Furthermore, the outer cover 4 is provided with a hollow structure 11.

[0025] In one embodiment, the outer cover 4 is an integral injection-molded structure. The hollow structure 11 on the outer cover 4 can save materials and reduce the overall weight while ensuring the impact resistance of the outer cover 4.

[0026] This utility model discloses an integrated easy-open welded cover with a stable overall structure. By providing an outer cover, it can prevent the sealing structure and the discharge nozzle from being squeezed and worn during transportation, thereby ensuring the sealing effect. In use, the sealing structure is inserted into the screw hole, and the sealing structure can be screwed off by rotating the outer cover. No other tools such as scissors or blades are required, making the operation convenient, time-saving and labor-saving.

[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An integrated easy open welded lid characterized in that, include: The device comprises a base, a discharge nozzle, a sealing structure, and an outer cover; the discharge nozzle is mounted on the base; an installation part is provided on the outer side of the discharge nozzle; several tear strips are vertically arranged on the bottom of the outer cover; the outer cover is fixedly connected to the installation part through the tear strips; a thin-walled structure is provided on the bottom of the sealing structure; the sealing structure covers the discharge end of the discharge nozzle through the thin-walled structure; and screw holes are symmetrically arranged on both sides of the outer cover for screwing the sealing structure out of the discharge nozzle.

2. A one-piece easy-open welded lid according to claim 1, characterized in that, The outer wall of the sealing structure protrudes outward on both sides to form two symmetrical protrusions.

3. A one-piece easy-open welded lid according to claim 2, characterized in that The screw hole is symmetrically provided with bayonets that are adapted to the protrusion.

4. A one-piece easy-open welded lid according to any one of claims 1-3, characterized in that The sealing structure is made of hot-melt plastic material; the sealing structure has a feeding channel that communicates with the discharge nozzle, so that the material can be filled into the container through the feeding channel and the discharge nozzle; the feeding channel is sealed by hot-melt extrusion of the sealing structure.

5. A one-piece easy-open welded lid according to claim 1, characterized in that, The outer cover has a hollow structure.

6. A one-piece easy-open welded lid according to claim 1, characterized in that, The base, discharge nozzle, sealing port, tear strip, outer cover, and mounting part are integrally injection molded.