An easy-to-brew eco-friendly tea bag

Abstract

This utility model relates to the field of tea packaging technology, specifically an easy-to-brew environmentally friendly tea bag. It includes longitudinally spaced fixed rods and movable rings. A pull line is connected to the top of the fixed rods, and the movable ring is located on top of the fixed rods and sleeved on the pull line. A tea bag body is located between the movable ring and the fixed rods. The tea bag body includes an inner membrane and an outer membrane, both made of biodegradable, water-permeable membrane structures. The tops of the inner and outer membranes are fixedly connected to the outer wall of the movable ring, and the bottoms of the inner and outer membranes are fixedly connected to the outer wall of the fixed rods. The inner and outer membranes form a sealed cavity for holding tea leaves. The movable ring has a detachable connection part on its radially inner side, which can be separated from the pull line. Lifting the pull line separates the connection part from the pull line, causing the movable ring to move towards the fixed rods, and the tea bag body can deform into a laterally extended structure. This utility model solves the problem of slow ingredient release caused by the static structure of existing tea bags.

Description

Technical Field

[0001] This utility model belongs to the field of tea packaging technology, and in particular relates to an easy-to-brew environmentally friendly tea bag. Background Technology

[0002] Individually packaged tea bags are convenient to carry and use. Current tea bags typically include a tea bag, a pull tab, and a tag. To use, the tea bag is placed inside the cup, and the tag hangs outside. Eco-friendly tea bags, on the other hand, are made from biodegradable materials such as corn fiber.

[0003] Currently, the mainstream tea bags on the market are generally 0.3-0.5 mm thick, filled with broken tea leaves or instant tea. Because of their thinness, users often pinch the string and repeatedly lift and drop the tea bag into the water to increase the concentration. However, since the external structure of the tea bag remains largely unchanged in water, maintaining its thin sheet structure, the broken tea leaves inside tend to remain in a fixed, stagnant state, hindering the rapid release of the tea's natural components. Therefore, based on these usage needs, this invention improves upon existing tea bags, enabling them to quickly release the natural components of the tea leaves and making brewing easier and more convenient. Utility Model Content

[0004] This invention provides an easy-to-brew, environmentally friendly tea bag that can effectively solve the above-mentioned problems.

[0005] This utility model is implemented as follows:

[0006] An easy-to-brew eco-friendly tea bag includes a fixed rod and a movable ring arranged longitudinally at intervals. A pull line is connected to the top of the fixed rod, and a label is connected to the end of the pull line away from the fixed rod. The movable ring is located on top of the fixed rod and is sleeved on the pull line. The tea bag body is located between the movable ring and the fixed rod. The tea bag body includes an inner membrane and an outer membrane arranged laterally at intervals. Both the inner and outer membranes are permeable membrane structures made of biodegradable materials. The tops of the inner and outer membranes are fixedly connected to the outer wall of the movable ring, and the bottoms of the inner and outer membranes are fixedly connected to the outer wall of the fixed rod. The inner and outer membranes form a sealed cavity structure for holding tea leaves. The movable ring has a detachable connection part on its radially inner side. Pulling up the pull line separates the connection part from the pull line, and the movable ring moves towards the fixed rod, allowing the tea bag body to deform into a laterally extended structure.

[0007] Based on the above technical solution, the length of the inner membrane is less than the length of the outer membrane.

[0008] Based on the above technical solution, the pull cord passes through the center of the connecting part, and the connecting part is provided with several tear-resistant cords that are centrally symmetrically distributed.

[0009] Based on the above technical solution, the longitudinal length of the fixed rod is greater than the longitudinal length of the movable ring.

[0010] Based on the above technical solution, the inner side of the inner membrane is provided with an inner cavity, which constitutes the sliding space of the movable ring.

[0011] Based on the above technical solution, in the initial state, the outer contour of the tea bag body is an elliptical structure. After the movable ring moves down, the outer contour of the tea bag body after deformation is a flat disc structure.

[0012] Based on the above technical solution, the connection between the pull wire and the connecting part is bonded with water-soluble adhesive.

[0013] Based on the above technical solution, the longitudinal length of the connecting part does not exceed half of the longitudinal length of the movable ring.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model, through the combination of a fixed rod, a movable ring, and inner and outer membranes, forms a unique structural design that allows the tea bag to deform during brewing, transforming from an initial elliptical structure into a flat, round cake structure. This deformation significantly increases the contact area between the tea leaves and water, allowing water to penetrate the tea leaves more quickly and fully, accelerating the dissolution and release of natural components such as tea polyphenols and amino acids. Compared to existing tea bags, it significantly shortens brewing time, allowing consumers to enjoy a rich tea soup more quickly.

[0016] 2. The tea bag of this invention is extremely easy to use. Consumers simply place the tea bag into a cup like a traditional tea bag, and when a higher concentration is desired, pulling up the string will trigger the tea bag's deformation. The detachable design between the string and the connecting part, along with the use of water-soluble adhesive, eliminates the need for complicated steps, making it easy for even first-time users to operate. This convenient brewing method meets the needs of modern consumers' fast-paced lifestyles and improves the convenience of tea drinking.

[0017] 3. The tea bag of this invention uses biodegradable materials for both the inner and outer membranes, such as corn fiber. These materials can be decomposed by microorganisms in the natural environment, unlike traditional plastic tea bags which cause long-term environmental pollution. This meets the current societal demand for environmentally friendly products and is conducive to promoting the sustainable development of the tea packaging industry. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of an easy-to-brew eco-friendly tea bag being placed in a cup in one embodiment.

[0020] Figure 2 yes Figure 1 A partial cross-sectional view of a Chinese-made environmentally friendly tea bag;

[0021] Figure 3 yes Figure 2 A magnified view of part A in the image;

[0022] Figure 4 yes Figure 3 Top view of the central active ring;

[0023] Figure 5 This is a structural diagram of an environmentally friendly tea bag in its deformed state;

[0024] Figure 6 yes Figure 5 Cross-sectional view of the usage status of the eco-friendly tea bag.

[0025] Figure label:

[0026] 100. Tea bag body; 110. Inner membrane; 120. Outer membrane; 200. Fixing rod; 300. Movable ring; 310. Connecting part; 320. Easy tear line; 400. Pull line; 500. Label; 600. Cup; a. Material cavity; b. Inner cavity. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0028] In the description of this utility model, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] Reference Figures 1 to 6 As shown, this embodiment discloses an easy-to-brew environmentally friendly tea bag. Its core purpose is to solve the problem of slow release of natural tea components during the brewing process of existing tea bags. Through innovative structural design, the tea bag can quickly release the natural components in the tea, providing consumers with a more convenient and efficient tea drinking experience, while also taking into account environmental performance.

[0030] Specifically, such as Figure 1 As shown, the eco-friendly tea bag consists of a tea bag body, a pull tab, and a label in its external structure. The tea bag body has an elliptical structure in its initial state, which can be placed inside a cup for use. The pull tab extends from inside the cup to the outside of the cup. The label is a rectangular piece of paper located at the outer end of the pull tab, used to print brand and product information.

[0031] like Figure 2 As shown, the eco-friendly tea bag also includes longitudinally spaced fixed rods and movable rings in its internal structure. The inner end of the pull line is connected to the fixed rod, and the movable ring is located on top of the fixed rod and sleeved on the pull line. The fixed rods provide support and fixation, offering a stable framework for the entire tea bag structure; the movable rings can move relative to the pull line and are the key component for achieving the deformation of the tea bag.

[0032] Furthermore, the main body of the tea bag is positioned between the fixed rod and the movable ring. Specifically, the main body of the tea bag includes an inner membrane and an outer membrane spaced horizontally. Both the inner and outer membranes are made of biodegradable materials (such as corn fiber) to create a permeable membrane structure. This material ensures that the tea bag can easily pass through water, allowing the tea leaves to fully contact the water, while also meeting environmental protection requirements. The tops of the inner and outer membranes are fixedly connected to the outer wall of the movable ring, and the bottoms of the inner and outer membranes are fixedly connected to the outer wall of the fixed rod. The inner and outer membranes form a sealed cavity structure for holding the tea leaves. This structural design allows the tea leaves to be safely contained within the cavity while simultaneously enabling nutrient exchange between the tea leaves and water through the inner and outer membranes.

[0033] In this embodiment, both the inner and outer membranes are laterally bent and wound to form a sealed surface. The longitudinal length of the outer membrane is 40 mm, and the longitudinal length of the inner membrane is 30 mm. Both have a water-permeable pore size of 50 μm. The fixing rod is 25 mm long and 2 mm in diameter, and the movable ring has an outer diameter of 25 mm and an inner diameter of 15 mm. Both are injection molded from corn fiber.

[0034] The inner side of the inner membrane has an inner cavity, which forms the sliding space for the movable ring. This design makes the movable ring move more smoothly and reduces the impact of friction on its movement. When the movable ring slides in the inner cavity, the deformation process of the tea bag body can be controlled more accurately, ensuring that the deformed structure meets the design requirements, thereby improving the release efficiency of natural components in the tea.

[0035] The inner membrane is shorter than the outer membrane. This design plays a crucial role in the deformation of the tea bag. As the movable ring moves towards the fixed rod, the shorter inner membrane bends and stretches more easily, forming a specific deformation structure together with the outer membrane. This allows the tea leaves inside the tea bag to have more thorough contact with the water. For example, in the deformed flat disc structure, the shorter length of the inner membrane helps to create a more uniform distribution of tea leaves, increasing the contact area between the tea leaves and water.

[0036] Combination Figure 2 and Figure 3 As shown, the movable ring has a detachable connection part with the pull wire on its radially inner side. Specifically, in conjunction with... Figure 4 The pull cord passes through the center of the connecting part, which is bonded with water-soluble adhesive. Several easily tear strips are centrally symmetrically distributed at the connection point. The water-soluble adhesive is specifically water-soluble polyvinyl alcohol (PVA) adhesive with a dissolving temperature of 60℃. It exhibits good adhesion in its dry state, ensuring a strong connection between the pull cord and the connecting part during transportation and storage. During brewing, when the tea bag comes into contact with hot water, the water-soluble adhesive gradually dissolves, allowing the pull cord to easily separate from the connecting part. This design cleverly utilizes the properties of water, achieving automatic deformation of the tea bag during use, eliminating the need for complex operations by the consumer and improving ease of use. The connection between the pull cord and the connecting part possesses both sufficient strength and the ability to easily separate under specific conditions. In actual use, applying appropriate tension and pulling the cord upwards causes the easily tear strips to break, thus separating the connecting part from the pull cord, triggering the movement of the movable ring and the deformation of the tea bag. The centrally symmetrically distributed tear lines ensure the stability and reliability of the separation process, avoiding incomplete damage to the connection due to uneven local stress. When the tear line is pulled up, the connection separates from the line, the movable ring moves towards the fixed rod, and the tea bag body can then deform into a laterally extended structure, such as... Figure 5 and Figure 6 As shown. This deformation changes the posture of the tea leaf bag in water and the internal packing of the tea leaves, which is conducive to the rapid release of the natural components in the tea.

[0037] It should be noted that, as Figure 2As shown, in this embodiment, the longitudinal length of the fixed rod is greater than the longitudinal length of the movable ring. This design provides sufficient space for the movement of the movable ring, ensuring that it can smoothly approach the fixed rod under the action of the pull line. Simultaneously, the longer fixed rod enhances the stability of the entire tea bag structure, maintaining a good shape during deformation and preventing excessive twisting, thus preventing structural instability from affecting the brewing effect of the tea. The longitudinal length of the connecting part does not exceed half the longitudinal length of the movable ring. This limitation ensures a reasonable proportion of the connecting part in the tea bag structure, providing sufficient connection strength without affecting the movement of the movable ring and the deformation effect of the tea bag due to excessive length. If the connecting part is too long, it may generate significant resistance during the movement of the movable ring, resulting in insufficient deformation of the tea bag and affecting the release of natural components in the tea.

[0038] Combination Figure 1 and Figure 6 As shown, in its initial state, the tea bag's main body has an elliptical outer contour. This elliptical structure effectively encloses the tea leaves when not infused, reducing the risk of scattering and spoilage during transportation and storage. It also contributes to a more compact overall structure, saving space and facilitating packaging and transport. After the moving ring descends, the tea bag's main body deforms into a flat, round disc structure. This flat, round disc structure significantly increases the contact area between the tea leaves and water, allowing water to penetrate the tea leaves more fully and accelerating the dissolution and release of natural components. For example, at the same water temperature and brewing time, a tea bag with a flat, round disc structure allows the tea to reach its ideal concentration and flavor more quickly.

[0039] When using, such as Figure 1Place the tea bag in a cup and add an appropriate amount of hot water. During the initial brewing stage, the tea bag floats in the water in an elliptical shape. Hot water gradually penetrates the inner and outer membranes into the brewing chamber, coming into contact with the tea leaves. When the consumer wishes to increase the tea concentration, the pull cord is pulled up. Because the pull cord is bonded to the connecting part with water-soluble adhesive and has an easy-tear seam, the seam breaks during the pulling process, separating the connecting part from the pull cord. At this point, the movable ring, no longer restrained by the pull cord, moves towards the fixed rod under the influence of buoyancy and its own weight. As the movable ring moves towards the fixed rod, it causes deformation of the inner and outer membranes. Because the inner membrane is shorter than the outer membrane, and the inner membrane has an inner cavity that serves as a sliding space for the movable ring, the movable ring can slide smoothly, causing the tea bag to gradually transform from an elliptical structure into a laterally extended flat disc structure. This deformation results in a more even distribution of tea leaves within the brewing chamber, significantly increasing the contact area with water. As the tea bag deforms, hot water can penetrate the tea leaves more fully, accelerating the dissolution and release of the tea's natural components. Effective ingredients such as tea polyphenols and amino acids quickly enter the tea, allowing the tea's concentration and flavor to reach an ideal state in a short time. Consumers can remove the tea bag at the appropriate time according to their taste preferences to enjoy a rich and delicious tea. Alternatively, the connecting part and pull string can be manually removed before brewing, and the flat, round tea bag can be placed in a cup for adding hot water, given its larger surface area.

[0040] Ordinary eco-friendly tea bags typically use a single, thin sheet structure filled with broken tea leaves or instant tea. During brewing, their structure remains largely unchanged, with the tea leaves in a fixed, piled-up state, resulting in limited contact area between the tea leaves and water and a slow release of natural components. However, this new tea bag, through its unique structural design, can deform from an elliptical structure to a flat, round disc structure, significantly increasing the contact area between the tea leaves and water, allowing natural components to be released into the tea more quickly. For example, under the same brewing time and water temperature, the tea brewed using this new tea bag has a significantly higher concentration and a richer, more robust flavor than ordinary eco-friendly tea bags. Figures 1 to 6 As shown, this embodiment discloses an easy-to-brew environmentally friendly tea bag. Its core purpose is to solve the problem of slow release of natural tea components during the brewing process of existing tea bags. Through innovative structural design, the tea bag can quickly release the natural components in the tea, providing consumers with a more convenient and efficient tea drinking experience, while also taking into account environmental performance.

[0041] Specifically, such as Figure 1 As shown, the environmentally friendly tea bag includes a tea bag body 100, a pull tab 400, and a label 500 in its external structure. The tea bag body 100 has an elliptical structure in its initial state and can be placed inside a cup 600. The pull tab 400 extends from inside the cup to the outside of the cup. The label 500 is a rectangular piece of paper located at the outer end of the pull tab 400 and is used to print brand and product information.

[0042] like Figure 2 As shown, the environmentally friendly tea bag also includes longitudinally spaced fixed rods 200 and movable rings 300 in its internal structure. The inner end of the pull line 400 is connected to the fixed rods 200, and the movable ring 300 is located on top of the fixed rods 200 and sleeved on the pull line 400. The fixed rods 200 provide support and fixation, providing a stable framework for the entire tea bag structure; the movable rings 300 can move relative to the pull line 400 and are the key component for realizing the deformation of the tea bag.

[0043] Furthermore, the tea bag body 100 is positioned between the fixed rod 200 and the movable ring 300. Specifically, the tea bag body 100 includes an inner membrane 110 and an outer membrane 120 spaced laterally apart. Both the inner membrane 110 and the outer membrane 120 are permeable membrane structures made of biodegradable materials (such as corn fiber). This material ensures that the tea bag can pass through water smoothly, allowing the tea leaves to fully contact the water, while also meeting environmental protection requirements. The tops of the inner membrane 110 and the outer membrane 120 are fixedly connected to the outer wall of the movable ring 300, and the bottoms of the inner membrane 110 and the outer membrane 120 are fixedly connected to the outer wall of the fixed rod 200. The inner membrane 110 and the outer membrane 120 form a sealed cavity a, which is used to hold the tea leaves. This structural design allows the tea leaves to be safely encased within the cavity a, while simultaneously enabling material exchange between the tea leaves and water through the inner membrane 110 and the outer membrane 120.

[0044] In this embodiment, both the inner membrane 110 and the outer membrane 120 are laterally bent and wound to form a closed surface. The longitudinal length of the outer membrane 120 is 40 mm, and the longitudinal length of the inner membrane 110 is 30 mm. Both have a water-permeable pore size of 50 μm. The fixing rod 200 is 25 mm long and 2 mm in diameter, and the movable ring 300 has an outer diameter of 25 mm and an inner diameter of 15 mm. Both are injection molded from corn fiber.

[0045] The inner side of the inner membrane 110 has an inner cavity b, which forms the sliding space for the movable ring 300. This design makes the movable ring 300 move more smoothly and reduces the impact of friction on its movement. When the movable ring 300 slides in the inner cavity b, the deformation process of the tea bag body 100 can be controlled more accurately, ensuring that the deformed structure meets the design requirements, thereby improving the release efficiency of natural components in the tea.

[0046] The inner membrane 110 is shorter than the outer membrane 120. This design plays a crucial role in the deformation process of the tea bag. When the movable ring 300 moves towards the fixed rod 200, the shorter inner membrane 110 is more prone to bending and stretching, forming a specific deformation structure together with the outer membrane 120, allowing the tea leaves in the filling cavity a to have more thorough contact with water. For example, in the deformed flat disc structure, the shorter length of the inner membrane 110 helps to create a more uniform distribution of tea leaves, increasing the contact area between the tea leaves and water.

[0047] Combination Figure 2 and Figure 3 As shown, the movable ring 300 has a detachable connecting part 310 on its radially inner side, which is separate from the pull wire 400. Specifically, in conjunction with... Figure 4 The pull cord 400 passes through the center of the connecting part 310, and the connection is bonded with water-soluble adhesive. Several easily tear strips 320 are centrally symmetrically distributed at the connection. The water-soluble adhesive is specifically water-soluble polyvinyl alcohol (PVA) adhesive with a dissolving temperature of 60℃. It has good adhesion in a dry state, ensuring a firm connection between the pull cord 400 and the connecting part 310 during transportation and storage. During brewing, when the tea bag comes into contact with hot water, the water-soluble adhesive gradually dissolves, allowing the pull cord 400 to easily separate from the connecting part 310. This design cleverly utilizes the properties of water, achieving automatic deformation of the tea bag during use, eliminating the need for complex operations by the consumer and improving ease of use. The connection between the pull cord 400 and the connecting part 310 possesses both sufficient strength and the ability to easily separate under specific conditions. In actual use, when a suitable pulling force is applied and the pull line 400 is lifted, the tear line 320 easily breaks, thereby separating the connecting part 310 from the pull line 400, triggering the movement of the movable ring 300 and the deformation of the tea bag. The centrally symmetrically distributed tear lines 320 ensure the stability and reliability of the separation process, avoiding the problem of incomplete damage to the connecting part 310 due to uneven local force. When the pull line 400 is lifted, the connecting part 310 can be separated from the pull line 400, and the movable ring 300 moves towards the fixed rod 200, thereby allowing the tea bag body 100 to deform into a laterally extended structure, such as... Figure 5 and Figure 6 As shown. This deformation changes the posture of the tea leaf bag in water and the internal packing of the tea leaves, which is conducive to the rapid release of the natural components in the tea.

[0048] It should be noted that, as Figure 2As shown, in this embodiment, the longitudinal length of the fixed rod 200 is greater than the longitudinal length of the movable ring 300. This design provides sufficient space for the movement of the movable ring 300, ensuring that the movable ring 300 can smoothly approach the fixed rod 200 under the action of the pull line 400. At the same time, the longer fixed rod 200 also enhances the stability of the entire tea bag structure, maintaining a good shape during the deformation of the tea bag and preventing excessive deformation and twisting, thus preventing structural instability from affecting the brewing effect of the tea. The longitudinal length of the connecting part 310 does not exceed half the longitudinal length of the movable ring 300. This limitation ensures a reasonable proportion of the connecting part 310 in the tea bag structure, providing sufficient connection strength without affecting the movement of the movable ring 300 and the deformation effect of the tea bag due to excessive length of the connecting part 310. If the connecting part 310 is too long, it may generate greater resistance during the movement of the movable ring 300, resulting in insufficient deformation of the tea bag and affecting the release of natural components in the tea.

[0049] Combination Figure 1 and Figure 6 As shown, in its initial state, the tea bag body 100 has an elliptical outer contour. This elliptical structure effectively encloses the tea leaves when not infused, reducing the risk of scattering and spoilage during transportation and storage. It also contributes to a more compact overall structure, saving space and facilitating packaging and transportation. After the movable ring 300 descends, the deformed outer contour of the tea bag body 100 becomes a flat, round disc. This flat, round disc structure significantly increases the contact area between the tea leaves and water, allowing water to penetrate the tea leaves more fully and accelerating the dissolution and release of natural components. For example, at the same water temperature and brewing time, a tea bag with a flat, round disc structure allows the tea to reach its ideal concentration and flavor more quickly.

[0050] When using, such as Figure 1Place the tea bag in cup 600 and add an appropriate amount of hot water. During the initial brewing stage, the tea bag floats in the water with an elliptical structure. Hot water gradually penetrates the inner membrane 110 and outer membrane 120 into the brewing chamber a, where it begins to contact the tea leaves. When the consumer wishes to increase the tea concentration, the pull cord 400 is pulled up. Since the pull cord 400 is bonded to the connecting part 310 with water-soluble adhesive and has an easy-tear line 320, the easy-tear line 320 breaks during the pulling process, separating the connecting part 310 from the pull cord 400. At this time, the movable ring 300, no longer restrained by the pull cord 400, moves towards the fixed rod 200 under the influence of buoyancy and its own weight. As the movable ring 300 moves towards the fixed rod 200, it causes the inner membrane 110 and outer membrane 120 to deform. Because the inner membrane 110 is shorter than the outer membrane 120, and the inner membrane 110 has an inner cavity b as a sliding space for the movable ring 300, the movable ring 300 can slide smoothly, allowing the tea bag body 100 to gradually transform from an elliptical structure into a laterally extended flat disc structure. This deformation makes the tea leaves in the material cavity a more evenly distributed, significantly increasing the contact area with water. As the tea bag body 100 deforms, hot water can penetrate the tea leaves more fully, accelerating the dissolution and release of the natural components in the tea leaves. Effective components such as tea polyphenols and amino acids quickly enter the tea water, allowing the tea soup concentration and taste to reach an ideal state in a short time. Consumers can remove the tea bag at the appropriate time according to their taste preferences to enjoy a rich and delicious tea soup. Alternatively, the connecting part 310 and the pull line 400 can be manually detached before brewing, and the tea bag, in its flat disc structure, can be placed in a cup 600 for hot water addition when the tea bag has a larger surface area.

[0051] Ordinary eco-friendly tea bags typically use a single, thin sheet structure filled with broken tea leaves or instant tea. During brewing, their structure remains largely unchanged, with the tea leaves in a fixed, piled-up state, resulting in limited contact area between the tea leaves and water and a slow release of natural components. However, this new tea bag, through its unique structural design, can deform from an elliptical structure to a flat, round disc, significantly increasing the contact area between the tea leaves and water, allowing natural components to be released into the tea more quickly. For example, under the same brewing time and water temperature, the tea brewed using this new tea bag has a significantly higher concentration and a richer, more robust flavor than ordinary eco-friendly tea bags.

[0052] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An eco-friendly tea bag for easy brewing, characterized by, The device includes longitudinally spaced fixed rods (200) and movable rings (300). A pull wire (400) is connected to the top of the fixed rod (200), and a label (500) is connected to the end of the pull wire (400) away from the fixed rod (200). The movable ring (300) is located on top of the fixed rod (200) and sleeved on the pull wire (400). A tea bag body (100) is located between the movable ring (300) and the fixed rod (200). The tea bag body (100) includes a transversely spaced inner membrane (110) and an outer membrane (120). Both the inner membrane (110) and the outer membrane (120) are permeable membrane structures made of biodegradable materials. The inner membrane (110)... The top of the outer membrane (120) is fixedly connected to the outer wall of the movable ring (300), and the bottom of the inner membrane (110) and the outer membrane (120) are fixedly connected to the outer wall of the fixed rod (200). The inner membrane (110) and the outer membrane (120) form a closed cavity structure called a material cavity (a), which is used to hold tea leaves. The movable ring (300) has a detachable connecting part (310) on its radially inner side, which is detachable from the pull line (400). Lifting the pull line (400) can separate the connecting part (310) from the pull line (400), and the movable ring (300) moves toward the fixed rod (200). The tea bag body (100) can be deformed into a transversely extended structure.

2. An eco-friendly tea bag according to claim 1, wherein, The length of the inner membrane (110) is less than the length of the outer membrane (120).

3. The eco-friendly tea bag according to claim 1, wherein the tea bag is made of a paper material. The pull cord (400) passes through the center of the connecting part (310), and the connecting part is provided with a number of tear-off cords (320) that are centrally symmetrically distributed.

4. The eco-friendly tea bag according to claim 1 or 2, wherein the tea bag is made of a paper material. The longitudinal length of the fixed rod (200) is greater than the longitudinal length of the movable ring (300).

5. The eco-friendly tea bag according to claim 1, wherein the tea bag is made of a paper material. The inner side of the inner membrane (110) is provided with an inner cavity (b), which forms the sliding space of the movable ring (300).

6. An eco-friendly tea bag according to claim 2, wherein, In the initial state, the outer contour of the tea bag body (100) is an elliptical structure. After the movable ring (300) moves down, the outer contour of the tea bag body (100) after deformation is a flat disc structure.

7. An eco-friendly tea bag according to claim 3, wherein, The connection between the pull wire (400) and the connecting part (310) is bonded with water-soluble adhesive.

8. An eco-friendly tea bag according to claim 7, wherein, The longitudinal length of the connecting part (310) does not exceed half the longitudinal length of the movable ring (300).

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