Drawing type self-heating food container

Abstract

The utility model relates to the technical field of food self-heating, in particular to a drawing type self-heating food container which comprises a box body, a food box, a first heating box, a second heating box, a drawing mechanism, a sealing cover and a pressure relief mechanism. The food box is movably arranged in the box body; the first heating box is arranged in the box body and used for storing a first composition, and the first heating box is located below the food box; the second heating box is arranged in the second heating box and is used for storing a second composition; the drawing mechanism is arranged in the first heating box; the sealing cover is arranged on the box body and is used for sealing the box body; the pressure relief mechanism is arranged on the sealing cover and used for maintaining pressure in the box body when food is heated. Through the arrangement of the drawing mechanism, the composition can be heated twice in the food heating process, the composition on the edge can be pushed to the position between the two partition plates, the composition can react better, waste of the composition is avoided, and the heating effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of food self-heating, in particular to a pull-out self-heating food container. Background Art

[0002] With the acceleration of the pace of social development today, portable food has become popular. However, urban white-collar workers who eat at their workplaces and people who engage in outdoor activities and travel still face many inconveniences during the dining process. In order to combine the portability of food with convenient heating methods to overcome various conditions, self-heating food has become a trend. It uses flameless chemical heating technology to achieve the self-heating function of packaged food, meeting the needs of social development and people.

[0003] Patent authorization announcement number CN213801115U discloses a pull-out self-heating food container, which belongs to the field of food self-heating technology and can solve the problems of existing self-heating food, such as complex self-heating structure, cumbersome self-heating method, and poor safety and reliability. The pull-out self-heating food container includes: an outer box body; a food container; a first heating box for accommodating a first composition; a second heating box for accommodating a second composition; a safety sheet at the bottom of the second heating box, and a notch around the edge of the safety sheet; a pull-out structure, one end of the pull-out structure is located outside the first side wall of the food container box, and the other end passes through the first side wall of the food container box and the side wall of the first heating box to connect to the safety sheet; when the pull-out structure is subjected to a force in a direction away from the first side wall, the safety sheet can be pulled open along the notch track, so that the second composition reacts with the first composition after mixing to generate heat.

[0004] However, the above technical solution has the following shortcomings: during the heating process, usually only the composition in the first heating box near the second heating box can react with the composition released from the second heating box, while the composition at the edge of the first heating box is difficult to react with the composition released from the second heating box, which not only affects the heating effect but also causes waste of the composition. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and proposes a pull-out self-heating food container.

[0006] The technical solution of the utility model is: a pull-out self-heating food container, comprising a box body;

[0007] A food box, the movable part of which is arranged inside the box body;

[0008] a first heating box, which is arranged in the box body and is used to store the first composition, and the first heating box is located below the food box;

[0009] a second heating box, disposed within the first heating box and configured to store a second composition;

[0010] A pull-out mechanism is disposed in the first heating box, one end of the pull-out mechanism is connected to the second heating box, and the other end of the pull-out mechanism extends to the outside of the box body;

[0011] A sealing cover, which is provided on the box body and is used to seal the box body;

[0012] The pressure relief mechanism is provided on the sealing cover and is used to maintain the pressure inside the box body when heating food.

[0013] Preferably, an isolation plate is fixedly connected to the interior of the second heating box, and a first safety sheet and a second safety sheet are provided at the bottom of the second heating box, and the first safety sheet and the second safety sheet are respectively located on both sides of the isolation plate.

[0014] Preferably, the pulling and pulling mechanism includes a partition plate, a first push plate, a second push plate and a connecting rope; there are two partition plates, the two partition plates are fixedly installed in parallel at the bottom of the inner wall of the box body, the first push plate is slidably set between the two partition plates, and the second push plate is slidably set between the partition plate and the inner wall of the box body, and there are multiple connecting ropes, one end of the connecting rope is first connected to the first safety piece and then to the first push plate, the other end of the connecting rope passes through the box body and extends to the outside of the box body, and the second safety piece and the first push plate are connected by a connecting rope.

[0015] Preferably, the second push plate is connected to a connecting rope, the other end of the connecting rope passes through the box body and extends to the outside of the box body, a sealing ring is provided inside the box body, and the connecting rope passes through the box body through the sealing ring.

[0016] Preferably, one end of the connecting rope located outside the box body is fixedly connected to a pull ring.

[0017] Preferably, the pressure relief mechanism includes a mounting tube, a support ring, a pressure relief ring and a sealing spring; the mounting tube is connected to the sealing cover, a vent hole is provided through the top of the mounting tube, the support ring is fixedly installed in the mounting tube, a vent hole is provided through the support ring, the pressure relief ring is slidably connected to the inner wall of the mounting tube, the pressure relief ring is provided with a vent hole, one end of the sealing spring is connected to the pressure relief ring, and the other end of the sealing spring is fixedly connected to the inner wall of the mounting tube.

[0018] Preferably, a plurality of vent holes are formed through the top of the mounting tube, a vent hole is formed through the support ring, and a plurality of vent holes are formed through the pressure relief ring, and the vent holes of the support ring and the vent holes of the pressure relief ring are staggered with each other.

[0019] Preferably, it also includes a connecting rod, one end of which is fixedly connected to the pressure relief ring, the other end of which passes through the mounting tube and is slidably connected to the mounting tube, and one end of the connecting rod located outside the mounting tube is fixedly connected to the adjusting rod.

[0020] Preferably, the box body is made of degradable environmentally friendly materials, and the inner wall of the box body is coated with a thermal insulation coating.

[0021] Preferably, the first heating box is composed of an inner wall of a box body and a partition for dividing the box body into a heating space for the composition and a heating space for the food.

[0022] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

[0023] The utility model utilizes a pull-out mechanism to heat the food composition twice during the heating process. The composition at the edge can be pushed between the two partitions to allow for a better reaction, thus avoiding waste of the composition and improving the heating effect. The pressure relief mechanism maintains pressure in the food box during heating, further improving the heating effect. Furthermore, when the pressure inside the food box is too high, the pressure can be relieved to prevent the box from rupturing due to excessive pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of an embodiment of the present invention;

[0025] Figure 2 A cross-sectional view of an embodiment of the present invention;

[0026] Figure 3 This is a three-dimensional diagram of a drawer mechanism in an embodiment of the present invention;

[0027] Figure 4 This is a cross-sectional view of the second heating box in an embodiment of the present invention;

[0028] Figure 5 This is a cross-sectional view of a pressure relief mechanism in an embodiment of the present invention;

[0029] Figure 6 This is a three-dimensional diagram of a support ring in an embodiment of the present invention.

[0030] Figure numerals: 1. Box body; 2. Food box; 3. Pull-out mechanism; 31. Partition plate; 32. First push plate; 33. Second push plate; 34. Connecting rope; 35. Sealing ring; 36. Pull ring; 4. Pressure relief mechanism; 41. Mounting cylinder; 42. Support ring; 43. Pressure relief ring; 44. Connecting rod; 45. Sealing spring; 46. Vent; 47. Adjusting rod; 5. First heating box; 6. Second heating box; 7. Sealing cover; 8. Isolation plate; 9. First safety sheet; 10. Second safety sheet. DETAILED DESCRIPTION

[0031] Example 1

[0032] like Figure 1-6 As shown, the present invention proposes a pull-out self-heating food container, comprising a box body 1, a food box 2, a first heating box 5, a second heating box 6, a pull-out mechanism 3, a sealing cover 7, and a pressure relief mechanism 4;

[0033] The food box 2 is movably arranged in the box body 1. The box body 1 is made of degradable and environmentally friendly materials, and the inner wall of the box body 1 is coated with a heat-insulating coating.

[0034] The first heating box 5 is disposed in the box body 1 for storing the first composition, which is a semi-fluid. The first heating box 5 is composed of the inner wall and the partition of the box body 1 and is used to divide the box body 1 into a heating space for the composition and a heating space for the food. The first heating box 5 is located below the food box 2.

[0035] The second heating box 6 is provided inside the second heating box 6 for storing the second composition, which is a fluid. An isolation plate 8 is fixedly connected to the interior of the second heating box 6. A first safety sheet 9 and a second safety sheet 10 are provided at the bottom of the second heating box 6. The first safety sheet 9 and the second safety sheet 10 are respectively located on both sides of the isolation plate 8;

[0036] The pulling mechanism 3 is disposed in the first heating box 5 , one end of the pulling mechanism 3 is connected to the second heating box 6 , and the other end of the pulling mechanism 3 extends to the outside of the box body 1 ;

[0037] The sealing cover 7 is provided on the box body 1 for sealing the box body 1;

[0038] The pressure relief mechanism 4 is provided on the sealing cover 7 and is used to maintain the pressure inside the box body 1 when heating food.

[0039] Example 2

[0040] like Figure 1-3As shown, the present invention proposes a pull-out self-heating food container. Compared with the first embodiment, the present embodiment further specifically discloses the structure of the pull-out mechanism 3; the pull-out mechanism 3 includes a partition plate 31, a first pushing plate 32, a second pushing plate 33 and a connecting rope 34; there are two partition plates 31, and the two partition plates 31 are fixedly mounted on the bottom of the inner wall of the box body 1 in parallel, the first pushing plate 32 is slidably arranged between the two partition plates 31, and the second pushing plate 33 is slidably arranged between the partition plate 31 and the inner wall of the box body 1, and a plurality of connecting ropes 34 are provided, one end of the connecting rope 34 is first connected to the first safety piece 9 and then to the second safety piece 9. The first heating box 6 is connected to a push plate 32, the length of the connecting rope 34 between the first safety piece 9 and the first push plate 32 is greater than half the length of the second heating box 6, the other end of the connecting rope 34 passes through the box body 1 and extends to the outside of the box body 1, the second safety piece 10 is connected to the first push plate 32 by the connecting rope 34, the second push plate 33 is connected to the connecting rope 34, the other end of the connecting rope 34 passes through the box body 1 and extends to the outside of the box body 1, a sealing ring 35 is provided inside the box body 1, the connecting rope 34 passes through the box body 1 through the sealing ring 35, and the end of the connecting rope 34 located outside the box body (1) is fixedly connected to a pull ring 36.

[0041] Example 3

[0042] like Figure 1-6 As shown, the present invention proposes a pull-out self-heating food container. Compared with the second embodiment, this embodiment further specifically discloses the structure of the pressure relief mechanism 4; the pressure relief mechanism 4 includes a mounting cylinder 41, a support ring 42, a pressure relief ring 43, a sealing spring 45 and a connecting rod 44; the mounting cylinder 41 is connected to the sealing cover 7, and a vent hole 46 is provided at the top of the mounting cylinder 41. The support ring 42 is fixedly installed in the mounting cylinder 41, and the support ring 42 is provided with a vent hole 46. The pressure relief ring 43 is slidably connected to the inner wall of the mounting cylinder 41, and the pressure relief ring 43 is provided with a vent hole 46. One end of the sealing spring 45 is connected to the pressure relief ring 43, and the other end of the sealing spring 45 is fixedly connected to the inner wall of the mounting cylinder 41. One end of the connecting rod 44 is fixedly connected to the pressure relief ring 43, and the other end of the connecting rod 44 penetrates the mounting cylinder 41 and is slidably connected to the mounting cylinder 41. The end of the connecting rod 44 located outside the mounting cylinder 41 is fixedly connected to the adjusting rod 47.

[0043] First, pull the right connecting rope 34 to drive the first safety plate 9 to open. After the first safety plate 9 is opened, the second composition on the left side of the isolation plate 8 in the second heating box 6 enters the first heating box 5 and reacts with the first composition in the first heating box 5 to release heat to heat the food in the food box 2. After heating for a period of time, continue to pull the right connecting rope 34 to drive the first pushing plate 32 to slide to the right. At the same time, pull the left connecting rope 34 to drive the second pushing plate 33 to slide to the left. The first pushing plate 32 slides to the right to push the composition between the two partitions to move to the right after releasing heat, and the second pushing plate 33 moves to the left to push the unreacted first composition When the first pushing plate 32 enters between the two partition plates 31 and moves to the far right, the connecting rope 34 between the first pushing plate 32 and the second safety plate 10 drives the second safety plate 10 to open, so that the second composition on the right side of the isolation plate 8 in the second heating box enters the first heating box 5 and reacts with the first composition in the first heating box 5 to release heat and heat the food in the food box 2. During the food heating process, the pressure in the food box 2 continues to increase. When the pressure in the food box 2 reaches a certain level, the steam pushes the pressure relief ring 43 away from the support ring 42, and the food box 2 is connected to the atmospheric pressure for pressure relief, thereby avoiding excessive pressure in the food box 2.

[0044] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A pull-out self-heating food container, characterized in that: include: Box body (1); A food box (2) is movably arranged in the box body (1); A first heating box (5) is arranged in the box body (1) and is used to store the first composition. The first heating box (5) is located below the food box (2); a second heating box (6), which is arranged in the first heating box (5) and is used to store the second composition; A drawing mechanism (3) is arranged in the first heating box (5), one end of the drawing mechanism (3) is connected to the second heating box (6), and the other end of the drawing mechanism (3) extends to the outside of the box body (1); a sealing cover (7), which is arranged on the box body (1) and is used to seal the box body (1); A pressure relief mechanism (4) is provided on the sealing cover (7) and is used to maintain pressure inside the box body (1) when heating food.

2. A pull-out self-heating food container according to claim 1, characterized in that: An isolation plate (8) is fixedly connected to the interior of the second heating box (6), and a first safety sheet (9) and a second safety sheet (10) are provided at the bottom of the second heating box (6), and the first safety sheet (9) and the second safety sheet (10) are respectively located on both sides of the isolation plate (8).

3. A pull-out self-heating food container according to claim 2, characterized in that: The pulling mechanism (3) comprises a partition plate (31), a first pushing plate (32), a second pushing plate (33) and a connecting rope (34); two partition plates (31) are provided, and the two partition plates (31) are fixedly installed in parallel at the bottom of the inner wall of the box body (1); the first pushing plate (32) is slidably provided between the two partition plates (31); the second pushing plate (33) is slidably provided between the partition plate (31) and the inner wall of the box body (1); a plurality of connecting ropes (34) are provided, one end of the connecting rope (34) is first connected to the first safety piece (9) and then connected to the first pushing plate (32); the other end of the connecting rope (34) passes through the box body (1) and extends to the outside of the box body (1); the second safety piece (10) and the first pushing plate (32) are connected via the connecting rope (34).

4. A pull-out self-heating food container according to claim 3, characterized in that: The second push plate (33) is connected to a connecting rope (34), the other end of which passes through the box body (1) and extends to the outside of the box body (1), and a sealing ring (35) is provided inside the box body (1), and the connecting rope (34) passes through the box body (1) through the sealing ring (35).

5. A pull-out self-heating food container according to claim 4, characterized in that: One end of the connecting rope (34) located outside the box body (1) is fixedly connected to a pull ring (36).

6. The pull-out self-heating food container according to claim 1, characterized in that: The pressure relief mechanism (4) comprises a mounting tube (41), a support ring (42), a pressure relief ring (43) and a sealing spring (45); the mounting tube (41) is connected to the sealing cover (7); a vent hole (46) is provided through the top end of the mounting tube (41); the support ring (42) is fixedly mounted in the mounting tube (41); the vent hole (46) is provided through the support ring (42); the pressure relief ring (43) is slidably connected to the inner wall of the mounting tube (41); the pressure relief ring (43) is provided with the vent hole (46); one end of the sealing spring (45) is connected to the pressure relief ring (43); and the other end of the sealing spring (45) is fixedly connected to the inner wall of the mounting tube (41).

7. The pull-out self-heating food container according to claim 6, characterized in that: The top end of the mounting tube (41) is provided with a plurality of vent holes (46), the support ring (42) is provided with a vent hole (46), and the pressure relief ring (43) is provided with a plurality of vent holes (46). The vent holes (46) of the support ring (42) and the vent holes (46) of the pressure relief ring (43) are staggered with each other.

8. The pull-out self-heating food container according to claim 7, characterized in that: The utility model further comprises a connecting rod (44), one end of which is fixedly connected to the pressure relief ring (43), the other end of which passes through the mounting tube (41) and is slidably connected to the mounting tube (41), and one end of the connecting rod (44) located outside the mounting tube (41) is fixedly connected to the adjusting rod (47).

9. The pull-out self-heating food container according to claim 1, characterized in that: The box body (1) is made of degradable environmentally friendly materials, and the inner wall of the box body (1) is coated with a heat-insulating coating.

10. The pull-out self-heating food container according to claim 1, characterized in that: The first heating box (5) is composed of the inner wall and partition of the box body (1) and is used to divide the box body (1) into a heating space for the composition and a heating space for the food.

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