Self-heating bag detection device
By designing a self-heating bag testing device, and utilizing clamping components and a sealed space structure, the problem of large heat loss in the testing of self-heating bags was solved, achieving higher testing accuracy and safety.
Patent Information
- Application Number
- CN202520336241.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing testing methods for self-heating bags suffer from significant heat loss, resulting in low testing accuracy.
A self-heating bag detection device was designed, including an outer shell, an inner shell, a top cover, and a clamping assembly. The self-heating bag is fixed in the inner shell by the clamping assembly to form a sealed space, reducing heat loss, and the temperature change of the inner shell is measured by a thermometer.
It improves the accuracy and safety of self-heating bag testing, reduces heat loss, ensures accurate thermometer readings, and simplifies the operation process.
Smart Images
Figure CN223870583U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of testing equipment for self-heating food production, and in particular to a testing device for self-heating bags. Background Technology
[0002] Self-heating food is a type of convenient food that heats food by reacting a built-in self-heating bag with water or oxygen to generate heat. Self-heating foods are easy to prepare, come in a wide variety, and have a long shelf life. The heating process requires no external heat source, making them suitable for outdoor activities, camping, travel, emergency supplies, or long-term storage.
[0003] Self-heating bags are a core component of self-heating foods. They are typically breathable non-woven fabric or paper bags containing ingredients such as quicklime, iron powder, aluminum powder, activated carbon, salts, and diatomaceous earth. The outer packaging must ensure that water vapor can enter while preventing the leakage of solid particles. During the production process, the mixture is placed into the breathable bag and then sealed to prevent humid air from entering and causing premature reaction. To ensure product quality, the reaction rate and total heat output of the self-heating bags need to be tested according to a certain sampling ratio.
[0004] Currently, testing self-heating bags requires measuring a certain amount of water and injecting it into a container holding the bag. The time is then recorded, and the temperature change before and after the reaction is measured to calculate the heat output. However, because only a small amount of water initially contacts the bag, it boils rapidly and produces steam. This not only results in heat loss but also causes the water temperature to rise initially and then fall, making accurate thermometer readings difficult and affecting the final test precision. Utility Model Content
[0005] In view of this, the present invention aims to provide a self-heating bag testing device that can reduce heat loss during the testing process, thereby enabling accurate testing of the heating performance of the self-heating bag.
[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0007] A self-heating bag detection device includes a housing;
[0008] The inner housing is detachably disposed inside the outer housing;
[0009] The top cover is detachably fastened to the top of the outer casing, and together with the outer casing, it can form a space for sealing the inner casing;
[0010] A clamping assembly is disposed on the side of the top cover facing the inner housing;
[0011] The thermometer is inserted through the side wall of the outer casing, and the measuring end abuts against the inner casing.
[0012] Furthermore, the clamping assembly includes slide rails symmetrically arranged on the side of the top cover facing the housing;
[0013] The clamping plates are configured as a pair that are slidably disposed on the slide rail;
[0014] An adjusting screw passes through the two clamping plates and is threaded into one of the clamping plates.
[0015] Furthermore, the clamping assembly also includes a guide rod; both clamping plates are slidably disposed on the guide rod.
[0016] Furthermore, multiple anti-slip strips are adhered horizontally to the two opposite surfaces of the clamping plate.
[0017] Furthermore, the outer surface sidewall of the inner shell is provided with multiple reinforcing ribs in the vertical direction;
[0018] The reinforcing ribs abut against the inner wall of the outer shell, and the plurality of reinforcing ribs are evenly distributed circumferentially along the horizontal cross section of the inner shell.
[0019] Furthermore, an observation window is provided on the side wall of the outer casing, and a level gauge is provided on the inner casing at a position opposite to the observation window.
[0020] Furthermore, a sealing strip is circumferentially bonded to one edge of the top cover where the clamping assembly is located, and a handle is vertically provided on the side of the top cover opposite to the clamping assembly.
[0021] Furthermore, a drain pipe is provided at one end of the outer shell away from the top cover; the drain pipe is provided perpendicular to the side wall of the outer shell and extends into the interior of the inner shell.
[0022] Compared with the prior art, this utility model has the following advantages:
[0023] This invention discloses a self-heating bag testing device. The outer shell supports and limits the other structural components of the device, and, in conjunction with the top cover, encloses the inner shell in a well-insulated, sealed space. Compared to an open container, this significantly reduces heat loss and its impact on test accuracy. The inner shell serves as a container for the heat release from the reaction between water and the self-heating bag. A clamping assembly on the top cover secures the self-heating bag, allowing the reaction to proceed by immersing the bag in water. Compared to water-heating testing methods, this method provides a more stable temperature rise and facilitates accurate readings. Furthermore, the clamping assembly allows for easy removal of the self-heating bag from the inner shell after the test.
[0024] Secondly, by setting the clamping assembly as a slide rail, clamping plate, and adjusting screw, the user can drive the two clamping plates to move closer together to clamp or move further apart to loosen them by rotating the adjusting screw. This eliminates the need to touch the parts that directly contact the self-heating bag, ensuring stable clamping, easy operation, and a simple structure, which helps improve the safety of the test.
[0025] In addition, by setting multiple parallel and evenly distributed reinforcing ribs on the outer surface sidewall of the inner shell, the structural strength of the inner shell can be effectively improved, which helps to reduce the occurrence of deformation of the inner shell. On the other hand, the structure of the reinforcing ribs can form a heat-insulating partition between the inner shell and the outer shell, reducing the heat loss caused by direct contact between the inner shell and the outer shell, which helps to improve the test accuracy.
[0026] In addition, the handle on the top cover allows users to easily lift and insert / remove the self-heating bag, which is fixed to the clamping assembly, into / from the inner housing. The sealing strip on the side of the top cover where the clamping assembly is located—the side where the top cover abuts against the edge of the outer housing—improves the seal at the contact point between the top cover and the outer housing, reducing water vapor escape and heat loss, thus further enhancing testing accuracy. Attached Figure Description
[0027] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0028] Figure 1 This is a schematic diagram of the structure of a self-heating bag detection device according to an embodiment of the present utility model;
[0029] Figure 2 This is a schematic diagram of the inner shell structure in an embodiment of the present invention;
[0030] Figure 3 This is a schematic diagram of the clamping assembly in an embodiment of the present invention.
[0031] Explanation of reference numerals in the attached figures:
[0032] 1. Outer shell; 2. Inner shell; 201. Reinforcing rib; 202. Level gauge; 3. Top cover; 301. Sealing strip; 302. Handle; 4. Clamping assembly; 401. Slide rail; 402. Clamping plate; 403. Adjusting screw; 404. Guide rod; 5. Thermometer; 6. Drain pipe. Detailed Implementation
[0033] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.
[0034] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0035] Taking the self-heating bag detection device described in this utility model as an example, the directional terms used in the embodiments, such as "up," "down," "left," "right," "front," and "back," are defined based on the vertical direction (also known as the height direction or the Z-direction of the self-heating bag detection device), the horizontal direction (also known as the width direction or the Y-direction of the self-heating bag detection device), and the front-back direction (also known as the length direction or the X-direction of the self-heating bag detection device). "Inner" and "outer" are defined based on the outline of the corresponding components. For example, "inner" and "outer" are defined based on the outline of the self-heating bag detection device, with the side of the outline closer to the center of the self-heating bag detection device being "inner," and vice versa.
[0036] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances. The utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0037] The following will refer to the appendix. Figure 1 To be continued Figure 3 The present invention will be described in detail with reference to the embodiments.
[0038] This embodiment relates to a self-heating bag testing device, which can quantify and test the heating performance of the self-heating bag by measuring the change in water temperature inside a sealed container, which is beneficial to improving the yield rate of self-heating bag production.
[0039] In terms of overall structure, refer to Figure 1 , Figure 2 and Figure 3 This embodiment of a self-heating bag detection device includes an outer shell 1, an inner shell 2, a top cover 3, a clamping assembly 4, and a thermometer 5. The inner shell 2 is detachably disposed inside the outer shell 1 via a snap-fit mechanism. The top cover 3 is detachably snap-fitted onto the top of the outer shell 1, forming a sealed space with the outer shell 1 to seal the inner shell 2. The clamping assembly 4 is mounted on the side of the top cover 3 facing the inner shell 2. The thermometer 5 is inserted through the side wall of the outer shell 1, with its measuring end abutting against the inner shell 2, enabling direct measurement and display of the temperature of the inner shell 2.
[0040] As described above, the outer shell 1 provides support and restraint for other structural components of this application, and, in conjunction with the top cover 3, encloses the inner shell 2 in a well-insulated, sealed space. Compared to an open container, this significantly reduces the impact of heat loss on the accuracy of test results. The inner shell 2 serves as a container for the reaction between water and the self-heating bag, and the clamping assembly 4 mounted on the top cover 3 clamps and secures the self-heating bag, allowing the reaction to proceed by immersing the self-heating bag in water. Compared to the water-heating test method, the temperature rise is more stable and accurate readings are easier to obtain. Furthermore, the clamping assembly 4 facilitates the removal of the self-heating bag from the inner shell 2 after the test.
[0041] Reference Figure 3The clamping assembly 4 includes a slide rail 401, a clamping plate 402, an adjusting screw 403, a guide rod 404, and an anti-slip strip. The slide rail 401 is fixedly mounted on the top cover 3 facing the inner housing 2. The slide rail 401 consists of two parallel straight rails. The clamping plate 402 is slidably mounted on the slide rail 401. There are two clamping plates 402. The distance between the two clamping plates 402 can be adjusted by driving the clamping plate 402 to slide relative to the slide rail 401. The adjusting screw 403 passes through the two clamping plates 402 and is threaded into one of them. Rotating the adjusting screw 403 drives the threaded clamping plate 402 to slide relative to the slide rail 401, thereby adjusting the distance between the two clamping plates 402. The guide rod 404 is a cylindrical rod with a limit block fixed at one end. Guide rods 404 pass through the two clamping plates 402, guiding and limiting the relative sliding between the clamping plates 402 and the slide rail 401. Multiple anti-slip strips are provided on the opposing surfaces between the two clamping plates 402. These anti-slip strips can be horizontally extending rubber strips arranged parallel to each other. The anti-slip strips increase the friction between the clamping plates 402 and the self-heating bag, reducing the possibility of the self-heating bag slipping and falling off.
[0042] By setting the clamping assembly 4 as a slide rail 401, clamping plate 402, and adjusting screw 403, the user can drive the two clamping plates 402 to move closer to each other to clamp or move further apart to relax by rotating the adjusting screw 403. There is no need to touch the parts that are in direct contact with the self-heating bag. The clamping is stable, easy to operate, and the structure is simple, which helps to improve the safety of the test.
[0043] Reference Figure 2 The outer surface sidewall of the inner shell 2 is provided with a plurality of reinforcing ribs 201 along the vertical direction. The reinforcing ribs 201 abut against the inner wall of the outer shell 1, and the plurality of reinforcing ribs 201 are evenly distributed along the circumference of the horizontal cross section of the inner shell 2.
[0044] By setting multiple parallel and uniformly distributed reinforcing ribs 201 on the outer surface sidewall of the inner shell 2, the structural strength of the inner shell 2 can be effectively improved, which helps to reduce the occurrence of deformation of the inner shell 2. On the other hand, the structure of the reinforcing ribs 201 can form a heat-insulating partition area between the inner shell 2 and the outer shell 1, which reduces the heat loss caused by direct contact between the inner shell 2 and the outer shell 1, and helps to improve the test accuracy.
[0045] Reference Figure 1 and Figure 2 An observation window is provided on the side wall of the outer casing 1, and a level gauge 202 is provided on the inner side of the inner casing 2. The level gauge 202 is positioned corresponding to the location of the observation window.
[0046] By opening an observation window on the outer shell 1 and installing a level gauge 202 on the inner shell 2 at a position opposite to the observation window, users can easily observe the level gauge 202 through the observation window and thus quickly grasp the amount of water injected into the inner shell 2.
[0047] Reference Figure 1 A sealing strip 301 is circumferentially bonded to the edge of the side of the top cover 3 where the clamping component 4 is located. A handle 302 is vertically provided on the side of the top cover 3 opposite to the side where the clamping component 4 is located.
[0048] By providing a handle 302 on the top cover 3, users can easily lift the self-heating bag fixed to the clamping assembly 4 to add to / remove from the inner shell 2. The sealing strip 301 on the side of the top cover 3 where the clamping assembly 4 is located, i.e., the side where the top cover 3 abuts against the edge of the outer shell 1, can improve the sealing of the contact area between the top cover 3 and the outer shell 1, reduce the escape of water vapor and heat loss, and help to further improve the testing accuracy.
[0049] Reference Figure 1 A drain pipe 6 is provided on the outer casing 1 at the end away from the top cover 3. The drain pipe 6 is vertically inserted through the side wall of the outer casing 1, and one end of the drain pipe 6 extends into the inner casing 2 by a snap-fit connection. A sealing plug is provided at the end of the drain pipe 6 located on the outside of the outer casing 1. The user can open the sealing plug to connect the inside of the inner casing 2 with the outside of the outer casing 1, thereby draining the waste liquid inside the inner casing 2 after the test is completed.
[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A self-heating bag detection device, characterized in that: Includes the outer shell (1); The inner shell (2) is detachably disposed inside the outer shell (1); The top cover (3) is detachably attached to the top of the outer shell (1) and can form a space with the outer shell (1) for sealing the inner shell (2); A clamping assembly (4) is disposed on the side of the top cover (3) facing the inner housing (2); The thermometer (5) is inserted through the side wall of the outer shell (1), and the measuring end abuts against the inner shell (2).
2. The self-heating bag detection device according to claim 1, characterized in that: The clamping assembly (4) includes a slide rail (401) symmetrically arranged on the side of the top cover (3) facing the inner housing (2); The clamping plates (402) are configured as a pair that are slidably disposed on the slide rail (401); An adjusting screw (403) is threaded through the two clamping plates (402) and is threaded into one of the clamping plates (402).
3. The self-heating bag detection device according to claim 2, characterized in that: The clamping assembly (4) further includes a guide rod (404); both clamping plates (402) are slidably disposed on the guide rod (404).
4. The self-heating bag detection device according to claim 2, characterized in that: Multiple anti-slip strips are bonded to the two opposite surfaces of the clamping plate (402) in the horizontal direction.
5. The self-heating bag detection device according to claim 1, characterized in that: The outer surface sidewall of the inner shell (2) is provided with a plurality of reinforcing ribs (201) in the vertical direction; The reinforcing rib (201) abuts against the inner wall of the outer shell (1), and the plurality of reinforcing ribs (201) are evenly distributed circumferentially along the horizontal cross section of the inner shell (2).
6. The self-heating bag detection device according to claim 1, characterized in that: An observation window is provided on the side wall of the outer shell (1), and a level gauge (202) is provided on the inner shell (2) at a position opposite to the observation window.
7. The self-heating bag detection device according to claim 1, characterized in that: A sealing strip (301) is circumferentially bonded to one edge of the top cover (3) where the clamping assembly (4) is located, and a handle (302) is vertically provided on the side of the top cover (3) opposite to the clamping assembly (4).
8. The self-heating bag detection device according to claim 1, characterized in that: A drain pipe (6) is provided at one end of the outer shell (1) away from the top cover (3); the drain pipe is provided perpendicular to the side wall of the outer shell (1) and extends into the interior of the inner shell (2).