Self-heating tea making device

This self-heating tea maker, with its built-in chemical heating element and aluminum foil inner liner, solves the problems of portability, leak prevention, and heat preservation, achieving rapid heating and long-lasting heat retention, making it suitable for various scenarios.

CN224219866UActive Publication Date: 2026-05-12PUER SIMAO LONGRUN TEA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PUER SIMAO LONGRUN TEA CO LTD
Filing Date
2025-05-06
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing tea sets lack portability, leak-proofness, and heat retention when used outdoors. Furthermore, portable tea sets that rely on external power sources are complex and cumbersome in design, failing to meet the needs of outdoor use.

Method used

This self-heating tea maker uses a built-in chemical heating pack and an aluminum foil inner liner and insulation layer structure, combined with a sealed connection design, to achieve rapid heating and long-lasting heat retention, ensuring no dripping and making it suitable for diverse scenarios.

Benefits of technology

It achieves rapid heating to the ideal brewing temperature within minutes, maintains the temperature for a long time, and requires no external power supply, making it suitable for convenient tea brewing needs in various outdoor scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of tea containers, and particularly relates to a self-heating tea making device which comprises a cup body, a water storage bin is arranged on the outer wall of the bottom of the cup body, the water storage bin is of a structure with a downward opening, and the opening is sealed by a tearable film. A groove radially aligned with the water storage bin is formed in the top of the base, a heating bag is arranged in the groove, and a scratching knife is arranged at the opening part of the groove; the bottom of the cup body and the top of the base are telescopically connected through relative movement; when the cup body and the base are located at initial positions, the scratching knife is separated from the water storage bin; when the cup body slides to the ending position relative to the base, the scratching knife is pushed to the position above the tearable film from the initial position, the scratching knife pierces and cuts the tearable film, and water stored in the water storage bin in advance flows into the groove. The self-heating tea making device is light in size and compact in structure, and is compatible with various use scenes such as outdoor hiking, business trip, city commuting, home office and the like; dependence of a power supply and fuel is avoided, and pure brewing tea can be enjoyed conveniently.
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Description

Technical Field

[0001] This utility model belongs to the field of tea container technology, specifically relating to a self-heating tea brewer. Background Technology

[0002] Tea culture, as an important component of Chinese civilization, carries profound historical and cultural value while also experiencing a resurgence in modern life, becoming a social phenomenon that is both important in daily life and in etiquette. China's six major tea categories—green tea, white tea, yellow tea, oolong tea, black tea, and dark tea—each possess unique flavors, ranging from delicate to mellow, satisfying diverse taste preferences. The polyphenols and amino acids abundant in tea, combined with moderate amounts of caffeine, can provide a mild yet lasting energizing effect. Furthermore, by improving blood pressure, blood lipids, and glucose metabolism, it offers significant protection against cardiovascular health, type II diabetes, and certain cancer risks. Due to its natural health benefits and profound cultural connotations, tea has become the preferred choice for Chinese families for waking up in the morning and enjoying a relaxing afternoon nap.

[0003] Most teaware currently on the market is geared towards indoor tea drinking needs, such as traditional Yixing clay gaiwans, glass teaware, or ceramic brewing vessels. Their design focuses on showcasing the color and aroma of tea and enhancing the brewing experience, but neglects crucial elements for outdoor use, such as portability, leak-proofness, and heat retention. To address the heat retention issue, some products use vacuum double-walled insulated cups, which can maintain hot water temperature for a longer period. However, the continuous high-temperature boiling leads to a bitter taste and significant nutrient loss in the tea. While ready-to-drink tea beverages or instant tea-flavored products exist, they generally contain large amounts of syrups, creamer, and other additives to enhance the flavor, deviating from the pure flavor of traditionally brewed tea. Portable tea makers or travel kettles rely on external power sources or internal batteries. They are bulky, have numerous components, and are cumbersome to assemble and clean, making it difficult to achieve rapid brewing and eliminate dependence on external power.

[0004] To solve at least one of the above problems, this utility model is proposed. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides a self-heating tea maker. This device achieves self-heating through a built-in chemical heating pack, which can heat up to the optimal brewing temperature of tea within minutes. Combined with the structure of the aluminum foil inner liner and the insulation layer, it achieves long-term heat preservation while heating up quickly. The sealed connection of each component ensures no leakage when tilted, etc., meeting the instant brewing needs of diverse scenarios such as outdoor hiking, business trips, urban cycling, and social gatherings.

[0006] The technical solution adopted in this utility model is:

[0007] This utility model provides a self-heating tea maker, the self-heating tea maker comprising:

[0008] The cup body 1 has a water storage tank 11 on its bottom outer wall. The water storage tank 11 has a downward opening structure, and the opening is sealed by a tearable film 12.

[0009] The base 2 has a groove 21 on its top that is radially aligned with the water storage tank 11. A heating pack 22 is placed inside the groove 21, and a slicing knife 23 is placed at the opening of the groove 21.

[0010] The bottom of the cup body 1 and the top of the base 2 are telescopically connected by relative movement; when the cup body 1 and the base 2 are in the initial position, the slicing blade 23 is separated from the water storage tank 11; when the cup body 1 slides relative to the base 2 to the termination position, the slicing blade 23 is pushed from the initial position to above the tearable film 12, the slicing blade 23 pierces and cuts the tearable film 12, so that the water pre-stored in the water storage tank 11 flows into the groove 21.

[0011] Preferably, the top of the cup body 1 is also connected to a cup lid 3, and the connection between the cup lid 3, the cup body 1, and the base 2 is a threaded connection.

[0012] Preferably, the cup body 1 includes: an inner cavity layer 13, which is a cavity structure with one end open, and a temperature-sensitive color-changing indicator ring 131 is provided on its outer peripheral wall; wherein the inner cavity layer 13 is made of materials such as aluminum foil and stainless steel that have heat transfer function and are safe for food contact.

[0013] The insulation layer 14 is a columnar structure with openings at both ends, covering the outer perimeter of the inner liner layer 13; a transparent window or a cutout is provided at the corresponding position of the temperature-sensitive color-changing indicator ring 131. The temperature-sensitive color-changing indicator ring 131 may also be a temperature-sensitive color-changing indicator sheet or other structures that can indicate temperature changes in real time.

[0014] Preferably, an annular tear ring 4 is provided along the outer periphery of the bottom of the cup body 1 between the connection position of the bottom of the cup body 1 and the top of the base 2. The annular tear ring 4 is tearably connected to the bottom wall of the cup body 1 through a preset annular fracture line 41. The insulation layer material can be made from commercially available, mature materials that are safe for food contact.

[0015] Preferably, the inner wall of the groove 21 is provided with a limiting boss 31 extending radially inward, the heating pack 22 is disposed between the bottom of the groove 21 and the limiting boss 31, and the side wall of the groove 21 corresponding to the limiting boss 31 is provided with an exhaust hole 24, which communicates with the inner wall of the groove 21.

[0016] Preferably, the exhaust port 24 is an oblique hole provided on the side wall of the groove 21, and its hole axis forms an elevation angle of 30°-60° with the plane of the side wall of the groove so that steam can be discharged in an oblique upward direction.

[0017] Preferably, an anti-scalding ring is also fitted on the outer peripheral wall of the insulation layer 14.

[0018] Preferably, the cup body 1 is also provided with a tea filter at its opening.

[0019] The heating pack is mainly composed of a combination of several of the following: calcium oxide, aluminum granules, sodium carbonate, and sodium bicarbonate.

[0020] When using this self-heating tea maker, the operation steps are as follows: Step (1) Put the tea leaves into the cup body 1, add room temperature drinking water into the cup body 1, and tighten the cup lid 3.

[0021] Step (2): Tear off the ring-shaped tear ring 4, and then rotate the cup body 1 and the base 2 together until they are tightened. During this twisting process, the slicing knife 23 moves from the initial position to the tearable film 12. The slicing knife 23 pierces and cuts the film 12, allowing the water stored in the water tank 11 to flow into the groove 21.

[0022] Step (3): The water flowing into the groove 21 reacts with the chemical substances in the heating pack 22 and undergoes an exothermic reaction. The released heat is conducted upward from the bottom of the inner liner cavity layer 13 to heat the drinking water in the cavity layer 13.

[0023] Step (4): The water vapor or gas pressure generated during the heating process can be discharged through the exhaust port 24. When the temperature-sensitive color-changing indicator ring 131 changes from the initial color to the set color (such as red to blue), it indicates that the heating process is over and the water temperature has reached a suitable state.

[0024] Step (5) can be consumed in the following ways:

[0025] Method 1: Unscrew the lid 3 counterclockwise and drink from the open end of the cup body 1.

[0026] Method 2: First, unscrew the cup body 1 and the cup lid 3 counterclockwise to disconnect them from the base 2. Remove the cup body 1 and the cup lid 3 together, then open the cup lid 3 and drink from the open end of the cup body 1.

[0027] Method 3: After taking out the tea according to Method 1 or Method 2, pour the tea into the cup lid 3 and drink from the open end of the cup lid 3;

[0028] It should be noted that the water ratio between the heating pack 22 and the water storage tank 11 is optimized to ensure complete chemical reaction and maximize heat absorption. When drinking directly in method one, the water in the groove 21 will hardly overflow from the vent 24, ensuring user safety and preventing waste.

[0029] The beneficial effects of this utility model are:

[0030] 1. This utility model features an integrated design of a built-in chemical heating pack and a water storage tank. Twisting the starter will tear the film of the water storage tank and trigger an exothermic reaction. No external heat source is required. It can heat the tea to the ideal brewing temperature within minutes, achieving a truly instant hot tea experience.

[0031] 2. The cup body of this utility model has a multi-layer structure composed of an inner aluminum foil paper liner and an outer insulation layer, which not only accelerates the initial heating rate, but also provides long-term heat insulation after the reaction is completed; the temperature-sensitive color-changing indicator ring intuitively indicates the best time to drink, avoiding burns.

[0032] 3. All components are connected by threads to ensure that no leakage occurs when tilting or shaking; the slanted vent and anti-scalding ring design on the side wall of the groove effectively guides steam to be discharged obliquely upward and isolates the high-temperature outer wall, taking into account both air dissipation and user safety.

[0033] 4. This utility model of self-heating tea maker is lightweight and compact, compatible with various usage scenarios such as outdoor hiking, business trips, urban commuting and home office; it eliminates the dependence on power and fuel, allowing you to enjoy pure brewed tea anytime.

[0034] 5. Before the tear-off ring is removed, the cup body and the base are partially connected by threads. The ring tear-off ring and the preset annular fracture line on the bottom wall of the cup body form a limiting structure, which means that when the cup body is screwed, it can only enter the predetermined depth along the thread stroke, preventing the slicing knife from contacting the water storage membrane too early. The tear-off ring is torn to the bottom wall of the cup body through the annular fracture line, so that the user can release the limiting structure by hand without disassembling the base. When the user tears off the tear-off ring, the annular fracture line breaks.

[0035] With the limiting structure released, the cup can continue to be screwed downwards into the base along the thread within the remaining thread stroke. The cup continues to be screwed in clockwise until the scriber advances to above the tearable film. The scriber, with its sharp back-cutting edge design, pierces and cuts the film along its circumference. After the bottom sealing layer of the water tank is punctured, the pre-stored water in the water tank flows into the groove under gravity, making full contact with the heating pack and triggering an exothermic reaction. Attached Figure Description

[0036] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0037] Figure 1 An exploded view of a self-heating tea maker according to a specific embodiment;

[0038] Figure 2 This is a schematic diagram of the longitudinal cross-section of the cup body in a specific embodiment;

[0039] Figure 3 This is a schematic diagram of the base in a specific embodiment, wherein a heating pack is provided inside the base;

[0040] Reference numerals: 1. Cup body; 11. Water reservoir; 12. Tearable film; 13. Inner liner layer; 131. Temperature-sensitive color-changing indicator ring; 14. Insulation layer; 2. Base; 21. Groove; 22. Heating pack; 23. Scratch knife; 24. Vent hole; 3. Cup lid; 4. Annular tear ring. Detailed Implementation

[0041] The present invention will be further described in detail below with reference to embodiments, but this is not intended to limit the present invention. Any modifications or improvements made based on the teachings of the present invention shall fall within the protection scope of the present invention. Where specific techniques or conditions are not specified in the embodiments, they shall be performed in accordance with the techniques or conditions described in the literature in the field or in accordance with the product manual.

[0042] Example 1

[0043] like Figure 1-3 As shown, this embodiment provides a self-heating tea maker, which includes:

[0044] The cup body 1 has a water storage tank 11 on its bottom outer wall. The water storage tank 11 has a downward opening structure, and the opening is sealed by a tearable film 12.

[0045] The base 2 has a groove 21 on its top that is radially aligned with the water storage tank 11. A heating pack 22 is placed inside the groove 21, and a slicing knife 23 is placed at the opening of the groove 21.

[0046] The bottom of the cup body 1 and the top of the base 2 are telescopically connected by relative movement; when the cup body 1 and the base 2 are in the initial position, the slicing blade 23 is separated from the water storage tank 11; when the cup body 1 slides relative to the base 2 to the termination position, the slicing blade 23 is pushed from the initial position to above the tearable film 12, the slicing blade 23 pierces and cuts the tearable film 12, so that the water pre-stored in the water storage tank 11 flows into the groove 21.

[0047] As a preferred embodiment, the free end of the scriber 23 has a cutting edge to ensure smooth cutting of the tearable film 12.

[0048] As a preferred embodiment, the base is made of thermal insulation material.

[0049] The top of the cup body 1 is also connected to the cup lid 3, and the connection between the cup lid 3, the cup body 1, and the base 2 is a threaded connection.

[0050] The cup body 1 includes: an inner cavity layer 13, which is a cavity structure with one end open, and a temperature-sensitive color-changing indicator ring 131 is provided on its outer peripheral wall; wherein the heat insulation layer 14 is made of aluminum foil.

[0051] The insulation layer 14 is a columnar structure with openings at both ends. It covers the outer peripheral wall of the inner liner layer 13 and has a transparent window in the area corresponding to the temperature-sensitive color-changing indicator ring 131.

[0052] Between the bottom of the cup body 1 and the top of the base 2, an annular tear ring 4 is provided along the outer periphery of the bottom of the cup body 1. The annular tear ring 4 is tearably connected to the bottom wall of the cup body 1 through a preset annular fracture line 41.

[0053] As a preferred embodiment, the inner wall of the inner liner cavity layer 13 is also provided with a water level indicator line to indicate the volume of drinking water to be added.

[0054] The inner wall of the groove 21 is provided with a radially inwardly extending limiting boss 31. The heating pack 22 is disposed between the bottom of the groove 21 and the limiting boss 31. The side wall of the groove 21 on the other side of the limiting boss 31 is provided with a vent hole 24, which communicates with the inner wall of the groove 21. The limiting boss 31 is disposed in the groove 21 to limit the heating pack 22 between the bottom of the groove and the limiting boss 31 during use, preventing it from shifting or shaking when the cup is tilted.

[0055] The exhaust port 24 is an oblique hole provided on the side wall of the groove 21, and its hole axis forms a 50° elevation angle with the plane of the side wall of the groove so that steam can be discharged in an oblique upward direction.

[0056] A heat-resistant ring is also fitted around the outer perimeter of the insulation layer 14.

[0057] The cup body 1 is also equipped with a tea filter.

[0058] The heating pack 22 is mainly composed of a combination of several of the following: calcium oxide, aluminum granules, sodium carbonate, and sodium bicarbonate. The specific formula can be found in food heating packs commonly used in the prior art.

[0059] Example 2

[0060] This embodiment provides the operation method of brewing tea with the self-heating tea maker described in Embodiment 1. The specific steps are as follows: Step (1): Put the tea leaves into the cup body 1, add room temperature drinking water into the cup body 1, and tighten the cup lid 3.

[0061] Step (2): Tear off the ring-shaped tear ring 4, and then rotate the cup body 1 and the base 2 together until they are tightened. During this twisting process, the slicing knife 23 moves from the initial position to the tearable film 12. The slicing knife 23 pierces and cuts the film 12, allowing the water stored in the water tank 11 to flow into the groove 21.

[0062] Step (3): The water flowing into the groove 21 reacts with the chemical substances in the heating pack 22 and undergoes an exothermic reaction. The released heat is conducted upward from the bottom of the inner liner cavity layer 13 to heat the drinking water in the cavity layer 13.

[0063] Step (4): The water vapor or gas pressure generated during the heating process can be discharged through the exhaust port 24. When the temperature-sensitive color-changing indicator ring 131 changes from the initial color to the set color (such as red to blue), it indicates that the heating process is over and the water temperature has reached a suitable state.

[0064] Step (5) can be consumed in the following ways:

[0065] Method 1: Unscrew the lid 3 counterclockwise and drink from the open end of the cup body 1.

[0066] Method 2: First, unscrew the cup body 1 and the cup lid 3 counterclockwise to disconnect them from the base 2. Then, remove the cup body 1 and the cup lid 3 together, and then open the cup lid 3 to drink.

[0067] Method 3: After taking out the tea according to Method 1 or Method 2, pour the tea into the cup lid 3 and drink from the open end of the cup lid 3.

[0068] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this application; the dimensions described in the drawings and embodiments are not related to the specific physical object and are not used to limit the protection scope of this application. The physical dimensions can be selected and changed according to actual needs.

Claims

1. A self-heating tea maker, characterized in that, The self-heating tea maker includes: The cup body (1) has a water storage tank (11) on its bottom outer wall. The water storage tank (11) has a downward opening structure and the opening is sealed by a tearable film (12). The base (2) has a groove (21) on its top that is radially aligned with the water storage tank (11). A heating pack (22) is placed inside the groove (21), and a slicing knife (23) is placed at the opening of the groove (21). The bottom of the cup body (1) and the top of the base (2) are telescopically connected by relative movement; when the cup body (1) and the base (2) are in the initial position, the slicing blade (23) is separated from the water storage tank (11); when the cup body (1) slides relative to the base (2) to the termination position, the slicing blade (23) is pushed from the initial position to above the tearable film (12), and the slicing blade (23) pierces and cuts the tearable film (12), so that the water pre-stored in the water storage tank (11) flows into the groove (21).

2. The self-heating tea maker according to claim 1, characterized in that, The top of the cup body (1) is also connected to a cup lid (3), and the connection between the cup lid (3), the cup body (1), and the base (2) is a threaded connection.

3. The self-heating tea maker according to claim 1, characterized in that, The cup body (1) includes: The inner liner cavity layer (13) is a cavity structure with one end open, and a temperature-sensitive color-changing indicator ring (131) is provided on its outer peripheral wall. The heat insulation layer (14) is a columnar structure with openings at both ends. It covers the outer peripheral wall of the inner liner cavity layer (13) and has a transparent window or hollowed-out part in the area corresponding to the temperature-sensitive color-changing indicator ring (131).

4. A self-heating tea maker according to claim 1, characterized in that, Between the connection point between the bottom of the cup body (1) and the top of the base (2), an annular tear ring (4) is provided along the outer periphery of the bottom of the cup body (1). The annular tear ring (4) is tearably connected to the bottom wall of the cup body (1) through a preset annular fracture line (41).

5. A self-heating tea maker according to claim 1, characterized in that, The inner wall of the groove (21) is provided with a limiting boss (31) extending radially inward. The heating pack (22) is located between the bottom of the groove (21) and the limiting boss (31). The side wall of the groove (21) on the other side of the limiting boss (31) is provided with an exhaust hole (24). The exhaust hole (24) is connected to the inner wall of the groove (21).

6. A self-heating tea maker according to claim 5, characterized in that, The exhaust port (24) is an oblique hole set on the side wall of the groove (21), and its hole axis forms an elevation angle of 30°-60° with the side wall plane of the groove so that steam can be discharged in an oblique upward direction.

7. A self-heating tea maker according to claim 3, characterized in that, A heat-resistant ring is also fitted on the outer periphery of the insulation layer (14).

8. A self-heating tea maker according to claim 1, characterized in that, The cup body (1) is also equipped with a tea filter at the mouth.