Packaging container formed by combining Teflon lining bags
By combining a Teflon-lined bag with a standard outer shell, the packaging container design solves the problems of poor corrosion resistance and easy adhesion of the inner bag, achieving corrosion resistance, high temperature resistance, and easy cleaning, thus reducing usage costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI YIJU PLASTIC TECH CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-19
AI Technical Summary
Existing inner lining bags have problems such as poor corrosion resistance, poor high temperature resistance, and easy adhesion in the storage and transportation of liquid materials, which leads to limitations in their use.
The flexible inner liner made of Teflon is combined with a rigid outer shell made of ordinary material and heat-sealed to form a whole. It is equipped with an injection port, an exhaust port and a sealing structure, to achieve a packaging container that is corrosion-resistant, high-temperature resistant and easy to clean.
This has resulted in packaging containers that are corrosion-resistant, high-temperature resistant, and easy to clean, reducing usage costs and expanding their application range.
Smart Images
Figure CN224257381U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of storage and transportation container technology, specifically a packaging container composed of Teflon-lined bags. Background Technology
[0002] In logistics transportation and storage, the storage and transportation of liquid materials currently often adopts the technology of setting inner lining bags inside the packaging container to isolate the material from the inner wall of the packaging container. Most of the commonly used inner lining bags are made of ordinary materials, which have disadvantages such as being not resistant to corrosion and high temperature, and being prone to sticking to materials, thus having certain limitations in practical use. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a packaging container composed of a Teflon inner liner bag and a rigid outer shell made of ordinary materials. Its advantages are: using ordinary and inexpensive materials for the outer shell and adding a high-performance Teflon inner liner bag, the packaging container can achieve the characteristics of corrosion resistance, high temperature resistance, easy cleaning and non-sticking, and also has a high cost performance.
[0004] This utility model is achieved through the following technical solution:
[0005] A packaging container assembled with a Teflon-lined bag includes a container shell, a connector, a flexible inner liner, a sealing inner plug, and a threaded outer cap. The container shell is characterized by being rigid, and the connector, flexible inner liner, and sealing inner plug are all made of Teflon. The container shell has an injection port and an exhaust port. The connector and the opening of the flexible inner liner are integrally formed by heat-sealing welding, with the connector serving as the bag opening connector for the flexible inner liner, and the bag opening is sealed by the sealing inner plug and threaded outer cap. The flexible inner liner is placed inside the rigid container shell, and the Teflon connector is snapped onto the injection port of the container shell. Further explanation of the above technical solution: the connector has an outward-flared edge, which wraps around the injection port of the rigid shell, and the inner edge of the connector... A corresponding sealing ring is provided; further explanation of the above technical solution: the bag opening connector seals the bag opening through a Teflon inner cap, completing the sealing of the packaged product; further explanation of the above technical solution: the flexible inner liner and the rigid outer shell are designed into a stable structure, not easy to disassemble, but washable and reusable; further explanation of the above technical solution: the welding of the Teflon inner liner and the valve opening is completed by a special heat-sealing equipment; further explanation of the above technical solution: the exhaust port of the rigid outer shell is equipped with a one-way exhaust valve; further explanation of the above technical solution: the packaging container composed of Teflon can be installed by inflating the bag body through the injection port or by evacuating air through the exhaust port.
[0006] This invention has the advantages of wide application and reduced usage costs. Attached Figure Description
[0007] Figure 1 Cross-sectional view of a Teflon flexible inner liner bag;
[0008] Figure 2 A sectional view of the outer shell of a packaging container with an external threaded injection port;
[0009] Figure 3 It consists of several easily assembled components;
[0010] Figure 4 This is a cross-sectional view of the packaging container assembly.
[0011] In the diagram: 1. Teflon flexible inner liner bag; 2. Teflon connector; 3. Teflon inner cap; 4. Container inlet; 5. Outer cap; 7. Packaging container outer shell; 8. Outer vent cap; 2-2. Sealing ring; 2-3. Connector outer flange; 2-5. Ring heat seal; 5-1. Sealing gasket; 5-2. Internal thread; 5-3. Anti-theft ring; 7-2. Packaging container inlet; 7-3. Packaging container vent; 7-4. Vent check valve; 7-21. External thread of container inlet; 7-22. Anti-rotation tooth; 8-2. Outer vent cap sealing gasket. Detailed Implementation
[0012] The following description, in conjunction with the accompanying drawings, further illustrates the content of this utility model:
[0013] The figure shows the structure of a packaging container assembled with Teflon inner liner bags. The packaging container uses Teflon material as the inner liner and ordinary material as the rigid outer shell, which can be metal or non-metal. The inner liner consists of connectors, flexible inner liner bags, and sealing inner plugs, all of which are made of Teflon material. Due to the non-stick and easy-to-clean properties of Teflon flexible inner liner bags, the inner liner bags can be recycled, effectively reducing costs and providing high cost performance. The connector and the flexible inner liner bag opening are integrated by heat sealing welding. The connector becomes the bag opening connector of the flexible inner liner bag. The connector has a flange. The flexible inner liner bag is placed inside the container. The outer flange of the connector is fastened to the injection port of the rigid shell. The injection port of the container is sealed by the threaded outer cap and the Teflon inner cap. The container shell has an injection port and an exhaust port. The exhaust port has a one-way exhaust valve. After the flexible inner liner bag is placed in the container, the bag can be expanded by inflating the bag into the injection port or evacuating the bag from the exhaust port. The function of the exhaust port is to facilitate the expulsion of air between the inner liner bag and the rigid shell when installing the inner liner bag, so that the inner liner bag is tightly attached to the inner wall of the rigid shell of the container to complete the bag installation. The threaded outer cap can seal the opening of the rigid shell for safety. The container combining the Teflon inner liner bag with a rigid shell of ordinary material can not only bring out the advantages of Teflon material such as corrosion resistance, high temperature resistance and non-sticking, but also cope with various complex application environments, while relatively reducing the use cost of the container.
[0014] The above is a description of the basic principles of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of this utility model as claimed.
Claims
1. A packaging container assembled with a Teflon-lined bag, comprising a container shell, connectors, a flexible inner liner, a sealing inner plug, and a threaded outer cap, characterized in that: The container shell is a rigid shell, and the connector, flexible inner liner bag, and sealing inner plug are all made of Teflon. The container shell is provided with an injection port and an exhaust port. The connector and the opening of the flexible inner liner bag are integrated by heat sealing welding. The connector becomes the bag opening connector of the flexible inner liner bag and the bag opening is sealed by the sealing inner plug and the threaded outer cap. The flexible inner liner bag is placed inside the rigid container shell, and the Teflon connector is snapped onto the injection port of the container shell.
2. The packaging container assembled with a Teflon-lined bag according to claim 1, characterized in that: The connector has an outward flange, which wraps around the injection port of the rigid shell, and a corresponding sealing ring is provided inside the outward flange.
3. The packaging container assembled with a Teflon-lined bag according to claim 1, characterized in that: The bag opening connector is sealed by an inner cap made of Teflon material, thus sealing the packaged product.
4. The packaging container assembled with a Teflon-lined bag according to claim 1, characterized in that: The flexible inner liner and rigid outer shell are designed into a stable structure that is not easy to disassemble, but can be washed and reused.
5. The packaging container assembled with a Teflon-lined bag according to claim 1, characterized in that: The welding of the Teflon liner bag and the valve port is completed by a special heat-sealing equipment.
6. The packaging container assembled with a Teflon-lined bag according to claim 1, characterized in that: The rigid housing has a one-way exhaust valve inside its exhaust port.
7. The packaging container assembled with a Teflon-lined bag according to claim 1, characterized in that: The Teflon-coated packaging container can be installed by inflating the bag through the injection port or by evacuating it through the exhaust port.