Long-acting quality-guaranteeing easy-to-pull self-heating device and self-heating tank
By designing a combined structure of water bag, heating bag and pull rope in self-heated food packaging can, the problems of low efficiency and water-soluble film failure of traditional self-heated food packaging cans are solved, and efficient and fast heating effects and good User experience.
Patent Information
- Application Number
- CN202421042575.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-14
AI Technical Summary
Traditional self-heated food packaging cans have low utilization efficiency, low production efficiency and high cost. The water in the water bag cannot completely flow out, and the water-soluble film is easily penetrated by moisture, which leads to the failure of the heating pack.
A long-term and quality easy-to-pull self-heating device is designed, using a combined structure of water bag, heating bag and pull rope. The water bag and sealed bag are designed through the folding connection and notch design to make the water bag and sealed bag water and heating bag when tearing it open. Close contact, heat food, wrap the heating bag with aluminum foil sealed bag, and pull ropes to fix the water bag and sealed bag at the same time to ensure efficient heating.
It achieves a high contact rate between the heating bag and the water bag, has a fast heating effect, is simple to operate, improves the user experience, and avoids the problem of heating bag failure caused by the water-soluble film absorbing air moisture.
Smart Images
Figure CN222203546U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of food packaging cans, in particular to a long-lasting and quality-keeping easy-pull self-heating device and a self-heating can. Background Art
[0002] With the accelerated pace of life, the consumption of convenient foods has grown rapidly, and many self-heating foods have emerged. Self-heating is mainly based on the principle that the heating pack generates heat when it comes into contact with water. The heating pack is isolated from the water bag before use. When in use, the water bag is torn open. After the water is soaked in the heating pack, the heating pack emits a large amount of heat to heat the water, forming water vapor to heat the food, which is convenient to use. When using traditional self-heating cans, the aluminum foil is punctured to allow water to meet the heating pack to achieve the purpose of heating. This not only increases the volume of the can and reduces the utilization efficiency of the can body, but also has low production efficiency and high production costs; while the method of pressing the water bag to puncture the water bag, the water in the water bag cannot flow out completely, reducing the heating efficiency of the heating pack; the water-soluble film method solves the problem that the packaging bag of the heating pack can be easily dissolved when water contacts the heating pack, but water molecules in the air can easily penetrate the water-soluble film and cause the heating pack to fail. Utility Model Content
[0003] In order to overcome the shortcomings and deficiencies of the prior art, the utility model provides a long-lasting, quality-preserving, easy-pull self-heating device, which solves the technical problems of low can utilization efficiency, low production efficiency, high production cost caused by the use structure of traditional aluminum foil sealed heating packs, low heating efficiency caused by the inability of water in the water bag to completely flow out, and the water-soluble film being easily penetrated by water molecules and affecting the heating effect.
[0004] The utility model achieves the above purpose through the following technical solutions:
[0005] A long-lasting, quality-preserving, easy-to-pull self-heating device comprises a water bag, a heating pack, and a drawstring, wherein the water bag has a first edge seal, the heating pack is placed in a sealing bag, the sealing bag has a second edge seal, the first edge seal and the second edge seal are fixed so that the sealing bag is pressed on the water bag, the first edge seal has a first connecting portion, the second edge seal has a second connecting portion, the first connecting portion and the second connecting portion are folded relative to each other and fixedly connected to the drawstring through a fixed end, and the fixed end is placed between the water bag and the sealing bag.
[0006] Preferably, the first connecting portion is a part of the first edge seal, the second connecting portion is a part of the second edge seal, the first connecting portion and the second connecting portion are folded relative to each other to form a first folded connecting line and a second folded connecting line located on the first edge seal and the second edge seal respectively, and the first connecting portion and the second connecting portion are connected to the first edge seal and the second edge seal respectively via the first folded connecting line and the second folded connecting line.
[0007] Preferably, the first edge seal has a first notch, and the first notch is formed by folding the first connecting portion.
[0008] Preferably, the second edge seal has a second notch, and the second notch is formed by folding the second connecting portion.
[0009] Preferably, the second notch is in an inverted trapezoidal shape from outside to inside.
[0010] Preferably, the water bag has a first middle seal that is perpendicular to the first edge seal, and the first notch is located at a position on the first edge seal that corresponds to the first middle seal.
[0011] Preferably, the sealed bag has a second middle seal perpendicular to the second edge seal, and the second notch is located at a position on the second edge seal corresponding to the second middle seal.
[0012] Preferably, the first edge seal and the second edge seal are fixedly connected by a fixing member, and the fixing member has a fixing buckle, and the fixing buckle is located at both ends of the first notch and / or the second notch.
[0013] Preferably, the sealed bag is an aluminum foil sealed bag or a composite aluminum film easy-to-tear sealed bag.
[0014] The utility model also discloses a self-heating can, comprising the above-mentioned long-lasting and quality-preserving easy-pull self-heating device, a can body, the top edge of the can body is provided with a hole for the pull rope to pass through, the side of the water bag facing away from the sealing bag is fixed to the inner bottom of the can body, and the plane shared by the line connecting the hole and the fixed end and the straight line where the middle seal of the sealing bag is located is perpendicular to the plane where the inner bottom of the can body is located.
[0015] Compared with the prior art, the beneficial effects obtained by the utility model are:
[0016] The utility model discloses a long-lasting, easy-to-pull self-heating device and a self-heating pot with a good quality preservation, comprising a water bag, a heating pack, and a draw rope, wherein the water bag has a first edge seal, the heating pack is placed in a sealing bag, and the sealing bag has a second edge seal, the first edge seal and the second edge seal are fixed so that the sealing bag is pressed on the water bag, the first edge seal has a first connecting portion, and the second edge seal has a second connecting portion, the first connecting portion and the second connecting portion are folded relative to each other and fixedly connected to the draw rope through a fixed end, the fixed end is placed between the water bag and the sealing bag, a connecting portion and a notch are formed by folding part of the first edge seal and the second edge seal, and the connecting portion and the draw rope are fixed, and the connecting portion and the draw rope are placed between the water bag and the sealing bag, due to the prefabricated notch, the draw rope can easily tear the water bag and the sealing bag when pulling the connecting portion, so that water and the heating pack are in contact and thus heat food; the notch on the second edge seal of the sealing bag is in an inverted trapezoidal shape from outside to inside, so that the force-bearing area of the connecting portion is large, and the second edge seal is fixedly connected to the water bag through a fixed end, and the fixed end is placed between the water bag and the sealing bag. The notch folding line of the two edge seals has a small force-bearing area, which makes it easier to further tear the sealed bag and not easy to break the connection part; the relative positions of the notch are at the middle seals of the water bag and the sealed bag, respectively. When the connection part is torn, the middle seal will be directly torn, which increases the structural strength of the connection part and makes it difficult to be broken, ensuring a good user experience; the sealed bag is placed above the water bag, and when the draw rope is pulled, the notch of the sealed bag is forced downward and encounters the notch connection part of the relatively folded water bag. When the water in the water bag flows out, the water directly enters the sealed bag relative to the notch. The heating pack therein undergoes a self-heating reaction and expands, causing the sealing bag to rupture and squeeze the water bag at the same time. Even if the connecting portion breaks when torn at this time, the opening is very small and does not affect the speed and effect of self-heating. The heating pack is wrapped in an aluminum foil sealing bag, and a pull rope is pulled to fix the tearing connection between the water bag and the sealing bag at the same time, which solves the inconvenience of traditional water-soluble films easily absorbing moisture in the air and causing the heating pack to fail, or the inconvenience of traditional heating packs and water bags being torn apart step by step. It has the beneficial effects of high contact rate between the heating pack and the water bag, fast heating speed, good effect, simple operation and good user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.
[0018] Figure 1 A schematic diagram of the long-lasting and quality-preserving easy-pull self-heating device of the utility model is shown.
[0019] Figure 2 A schematic diagram of a sealing bag of the long-lasting and quality-keeping easy-pull self-heating device of the utility model is shown.
[0020] Figure 3A schematic diagram of a self-heating can of the utility model is shown for a long-lasting and quality-preserving easy-pull self-heating device.
[0021] Figure markings: 1-water bag; 11-first edge seal; 12-first connecting part; 13-first notch; 2-heating pack; 3-pull rope; 31-fixed end; 4-sealing bag; 41-second edge seal; 42-second connecting part; 43-second notch; 5-fixing piece; 51-fixing buckle; 6-tank body. DETAILED DESCRIPTION
[0022] The present invention is further described below in conjunction with the drawings and specific embodiments of the specification, but the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0023] Please refer to the attached Figure 1 To Attachment Figure 3 A self-heating can with a long-lasting, easy-to-pull self-heating device comprises a water bag 1, a heating pack 2, a drawstring 3, and a can body 6. The water bag 1 has a first edge seal 11, the heating pack 2 is placed in a sealing bag 4, the sealing bag 4 has a second edge seal 41, the first edge seal 11 and the second edge seal 41 are fixed so that the sealing bag 4 is pressed on the water bag 1, the first edge seal 11 has a first connecting portion 12, the second edge seal 41 has a second connecting portion 42, the first connecting portion 12 and the second connecting portion 42 are folded relative to each other and fixedly connected to the drawstring 3 through a fixed end 31, and the fixed end 31 is placed between the water bag 1 and the sealing bag 4.
[0024] Further, the first connecting portion 12 is a part of the first edge seal 11, the first edge seal 11 has a first notch 13, the first notch 13 is formed by folding the first connecting portion 12, the water bag 1 has a first middle seal perpendicular to the first edge seal 11, the first notch 13 is located at a position corresponding to the first middle seal on the first edge seal 11; the second connecting portion 42 is a part of the second edge seal 41, the second edge seal 41 has a second notch 43, the second notch 43 is formed by folding the second connecting portion 42, the sealing bag 4 has a second middle seal perpendicular to the second edge seal 41, the second notch 43 is located at a position corresponding to the first middle seal on the first edge seal 11; At the position corresponding to the second middle seal on the second edge seal 41; the first connecting portion 12 and the second connecting portion 42 are relatively folded to form a first folding connection line and a second folding connection line located on the first edge seal 11 and the second edge seal 41 respectively, the first connecting portion 12 and the second connecting portion 42 are respectively connected to the first edge seal 11 and the second edge seal 41 through the first folding connection line and the second folding connection line, the first edge seal 11 and the second edge seal 41 are fixedly connected by a fixing member 5, the fixing member 5 has a fixing buckle 51, and the fixing buckle 51 is located at both ends of the first notch 13 and / or the second notch 43.
[0025] Furthermore, the second notch 43 is in an inverted trapezoid from the outside to the inside, and the sealing bag 4 is an aluminum foil sealing bag. The force direction of the second notch 43 when torn is perpendicular to the second middle seal side. The back side of the second middle seal is disconnected from the second edge seal 41 when torn, and the sealing bag 4 is torn open. Similarly, the water bag 1 is also torn open at the same time, and the water and the heating pack 2 contact and generate heat. The heating pack 2 expands and squeezes the water bag 1. At the same time, the heating pack 2 has a strong absorption capacity and actively absorbs the water in the water bag 1 to accelerate the reaction and heating speed.
[0026] Furthermore, a hole is provided on the top edge of the tank body 6 for the pull rope 3 to pass through, and a side of the water bag 1 facing away from the sealing bag 4 is fixed to the inner bottom of the tank body 6. The plane shared by the line connecting the hole and the fixed end 31 and the straight line where the middle seal of the sealing bag 4 is located is perpendicular to the plane where the inner bottom of the tank body 6 is located, so that the pull rope 3 can easily tear open the sealing bag 4 when subjected to force. At the same time, the water bag 1 is located below the sealing bag 4, so that water can be absorbed by the heating pack 2 to the greatest extent. At the same time, the volume and weight of the expanded heating pack 2 are utilized to realize the squeezing of the water bag 1, thereby further enhancing the self-heating speed and effect of the heating pack.
[0027] The above examples are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above examples, and there are many similar modifications. All modifications that can be directly derived or associated with the content disclosed by ordinary technicians in this field should be considered as the scope of protection of the present invention.
Claims
1. A long-lasting and quality-preserving self-heating device. It is characterized in that The invention comprises a water bag (1), a heating pack (2), and a drawstring (3), wherein the water bag (1) has a first edge seal (11), the heating pack (2) is placed in a sealing bag (4), the sealing bag (4) has a second edge seal (41), the first edge seal (11) and the second edge seal (41) are fixed so that the sealing bag (4) is pressed onto the water bag (1), the first edge seal (11) has a first connecting portion (12), the second edge seal (41) has a second connecting portion (42), the first connecting portion (12) and the second connecting portion (42) are folded relative to each other and fixedly connected to the drawstring (3) via a fixed end (31), and the fixed end (31) is placed between the water bag (1) and the sealing bag (4).
2. The long-lasting and quality-preserving easy-pull self-heating device according to claim 1, It is characterized in that The first connecting portion (12) is a part of the first edge seal (11), and the second connecting portion (42) is a part of the second edge seal (41). The first connecting portion (12) and the second connecting portion (42) are folded relative to each other to form a first folded connecting line and a second folded connecting line located on the first edge seal (11) and the second edge seal (41), respectively. The first connecting portion (12) and the second connecting portion (42) are connected to the first edge seal (11) and the second edge seal (41) via the first folded connecting line and the second folded connecting line, respectively.
3. The long-lasting and quality-preserving easy-pull self-heating device according to claim 1, It is characterized in that The first edge seal (11) has a first notch (13), and the first notch (13) is formed by folding the first connecting portion (12).
4. The long-lasting and quality-preserving easy-pull self-heating device according to claim 1, It is characterized in that The second edge seal (41) has a second notch (43), and the second notch (43) is formed by folding the second connecting portion (42).
5. The long-lasting and quality-preserving easy-pull self-heating device as claimed in claim 4, It is characterized in that The second notch (43) is in the shape of an inverted trapezoid from the outside to the inside.
6. The long-lasting and quality-preserving easy-pull self-heating device as claimed in claim 3, It is characterized in that The water bag (1) has a first middle seal strip perpendicular to the first edge seal strip (11), and the first notch (13) is located at a position on the first edge seal strip (11) corresponding to the first middle seal strip.
7. The long-lasting and quality-preserving easy-pull self-heating device according to claim 4, It is characterized in that The sealing bag (4) has a second middle seal strip perpendicular to the second edge seal strip (41), and the second notch (43) is located at a position on the second edge seal strip (41) corresponding to the second middle seal strip.
8. The long-lasting and quality-preserving easy-pull self-heating device as claimed in claim 3, It is characterized in that The first edge seal (11) and the second edge seal (41) are fixedly connected via a fixing member (5), wherein the fixing member (5) has a fixing buckle (51), and the fixing buckle (51) is located at two ends of the first notch (13).
9. The long-lasting and quality-preserving easy-pull self-heating device according to claim 4, It is characterized in that The first edge seal (11) and the second edge seal (41) are fixedly connected via a fixing member (5), wherein the fixing member (5) has a fixing buckle (51), and the fixing buckle (51) is located at two ends of the second notch (43).
10. The long-lasting and quality-preserving easy-pull self-heating device according to claim 1, It is characterized in that The sealing bag (4) is an aluminum foil sealing bag or a composite aluminum film easy-to-tear sealing bag.
11. A self-heating tank, It is characterized in that The invention comprises a long-lasting, easy-to-pull self-heating device as claimed in any one of claims 1 to 9, a tank body (6), a hole for the draw rope (3) to pass through being arranged on the top edge of the tank body (6), a side of the water bag (1) facing away from the sealing bag (4) being fixed to the inner bottom of the tank body (6), and a plane shared by a line connecting the hole and the fixed end (31) and a straight line on which a middle seal strip of the sealing bag (4) is located being perpendicular to the plane on which the inner bottom of the tank body (6) is located.