Microwave heating automatic deflation type packaging bag

Abstract

The utility model discloses a microwave heating automatic deflation type packaging bag, and relates to the technical field of packaging. A microwave heating automatic deflation type packaging bag comprises a protection layer, a deflation device is arranged on the protection layer and comprises a protection shell, a filter plate and an air outlet pipe, the protection shell is rotationally connected with the outer wall of the air outlet pipe, and a fixing ring on the outer wall of the air outlet pipe is rotationally connected in a groove formed in the inner wall of the protection shell. A filter plate is fixedly connected to an outlet in the upper end of the protective shell, a limiting sleeve is fixedly connected to the interior of an air outlet pipe, and a top block in an air bleeding device jacks a blocking block to move upwards to drive a second reset spring to contract, and meanwhile, a gap exists between the blocking block and a blocking block groove; and then air in the packaging bag enters the air outlet pipe, passes through the gap between the blocking block and the blocking block groove, is filtered by the filter plate and then is discharged, so that the situation that the pressure in the packaging bag is gradually increased, and the packaging bag is expanded and even broken is avoided, the packaging bag is effectively protected, and meanwhile the stability of the packaging bag is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging, in particular to a microwave-heated automatic air-deflation packaging bag. Background Art

[0002] Microwave heating packaging bags are a type of packaging material specially designed for heating food in a microwave oven. This type of packaging bag uses specific materials and structures to enable it to withstand the high temperature and pressure during microwave heating while maintaining the hygiene, safety and taste of the food. It is often used in the packaging of convenience foods, fast food, cooked food and other products. They not only improve the convenience and safety of microwave heating, but also maintain the quality and taste of food, providing consumers with a better eating experience.

[0003] Existing microwave heating packaging bags usually adopt a multi-layer structure, which includes at least one layer of material that can withstand microwave heating. In a certain part of the packaging bag, however, when the food in the packaging bag is heated in a microwave oven, the moisture in the food is converted into steam, causing the internal pressure of the packaging bag to gradually increase, and then the packaging bag may expand or even rupture, causing food to splash out and contamination inside the microwave oven. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a microwave heating automatic degassing packaging bag, which can solve the problem that when the food in the packaging bag is heated in a microwave oven, the moisture in the food is converted into steam, causing the internal pressure of the packaging bag to gradually increase, and then the packaging bag may expand or even rupture, thereby causing food to splash out and the inside of the microwave oven to be contaminated.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a microwave-heated automatic air-release packaging bag, comprising a protective layer, on which an air-release device is arranged;

[0006] The air release device comprises a protective shell, a filter plate and an air outlet pipe;

[0007] Wherein, the protective shell is rotatably connected to the outer wall of the air outlet pipe;

[0008] Wherein, the fixing ring on the outer wall of the air outlet pipe is rotatably connected inside the groove opened on the inner wall of the protective shell;

[0009] Wherein, the filter plate is fixedly connected at the upper outlet of the protective shell;

[0010] Wherein, the interior of the air outlet pipe is fixedly connected to a limiting sleeve;

[0011] Among them, the limit sleeve is "conical";

[0012] Wherein, a first leaking plate is fixedly connected to the inner wall of the upper end of the air outlet pipe;

[0013] Wherein, a blocking groove is provided on the upper surface of the limiting sleeve;

[0014] Wherein, a blocking block is slidably connected inside the blocking block groove;

[0015] Wherein, a second return spring is fixedly connected to the lower surface of the first leak plate;

[0016] Wherein, one end of the second return spring close to the blocking block is fixedly connected to the upper surface of the blocking block;

[0017] Wherein, the outer wall of the lower end of the limiting sleeve is fixedly connected to two fixing blocks;

[0018] Wherein, the lower surfaces of the two fixed blocks are fixedly connected with a first return spring;

[0019] Wherein, a second leaking plate is slidably connected inside the lower end of the air outlet pipe;

[0020] Wherein, one end of the first return spring close to the second leak plate is fixedly connected to the upper surface of the second leak plate;

[0021] Wherein, a top block is fixedly connected to the upper surface of the second leaking plate;

[0022] The top block is in a "cone-shaped" shape, and one end of the top block close to the blocking block contacts the lower surface of the blocking block.

[0023] Preferably, the interior of the protective shell is communicated with the interior of the air outlet pipe;

[0024] The protective layer is internally bonded to the inner layer.

[0025] Preferably, the air outlet pipe is fixedly connected to the upper surface of the protective layer;

[0026] Wherein, the upper surface of the protective layer is fixedly connected with a feed pipe.

[0027] Preferably, the air outlet pipe is fixedly passed through the protective layer and extends into the inner layer;

[0028] The feed pipe is fixedly passed through the protective layer and extends into the inner layer.

[0029] Preferably, the protective layer is made of polyester (PET) material.

[0030] Preferably, the inner layer is composed of polyethylene (PE) material.

[0031] Compared with the prior art, the beneficial effects of the utility model are:

[0032] (1) The microwave-heated automatic deflation packaging bag has a top block in the deflation device that moves upward against the blocking block, driving the second return spring to contract while creating a gap between the blocking block and the blocking block groove. The air inside the packaging bag then enters the air outlet pipe and is filtered by the filter plate after passing through the gap between the blocking block and the blocking block groove before being discharged. This prevents the internal pressure of the packaging bag from gradually increasing, causing the packaging bag to expand or even rupture, thereby effectively protecting the packaging bag and improving the stability of the packaging bag.

[0033] (2) The microwave-heated automatic air-deflating packaging bag increases the overall structural strength of the packaging bag through the protective layer, so that it can better withstand changes in internal pressure during microwave heating, preventing the packaging bag from rupturing or deforming, while reducing the risk of burns and microwave damage, thereby enhancing safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0035] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0036] Figure 2 This is a schematic diagram of the structure inside the protective shell of the utility model;

[0037] Figure 3 It is a schematic diagram of the structure of the exterior of the second leaking plate of the utility model.

[0038] Figure numerals: 1, protective layer; 2, feed pipe; 3, filter plate; 4, protective shell; 5, inner layer; 6, fixed block; 7, blocking block; 8, top block; 9, first return spring; 10, limiting sleeve; 11, second return spring; 12, first leak plate; 13, air outlet pipe; 14, second leak plate; 15, blocking block groove. DETAILED DESCRIPTION

[0039] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0040] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0042] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0043] See also Figure 1-3 , the utility model provides a technical solution: a microwave heating automatic air-release packaging bag, comprising a protective layer 1;

[0044] A degassing device is provided on the protective layer 1;

[0045] The deflation device includes a protective shell 4, a filter plate 3 and an air outlet pipe 13. The protective shell 4 is rotatably connected to the outer wall of the air outlet pipe 13. The fixing ring on the outer wall of the air outlet pipe 13 is rotatably connected inside the groove opened on the inner wall of the protective shell 4. The filter plate 3 is fixedly connected at the upper end outlet of the protective shell 4. The inner part of the air outlet pipe 13 is fixedly connected to a limiting sleeve 10. The limiting sleeve 10 is "conical". The inner wall of the upper end of the air outlet pipe 13 is fixedly connected to a first leak plate 12. A blocking groove 15 is opened on the upper surface of the limiting sleeve 10. A blocking block 7 is slidably connected inside the blocking groove 15. The lower surface of the first leak plate 12 is fixedly connected to There is a second return spring 11, one end of the second return spring 11 close to the blocking block 7 is fixedly connected to the upper surface of the blocking block 7, the lower end outer wall of the limiting sleeve 10 is fixedly connected to two fixed blocks 6, the lower surfaces of the two fixed blocks 6 are fixedly connected to the first return spring 9, the lower end of the air outlet pipe 13 is slidably connected to the second leak plate 14, one end of the first return spring 9 close to the second leak plate 14 is fixedly connected to the upper surface of the second leak plate 14, the upper surface of the second leak plate 14 is fixedly connected to a top block 8, the top block 8 is "conical", and one end of the top block 8 close to the blocking block 7 contacts with the lower surface of the blocking block 7.

[0046] Among them, the interior of the protective shell 4 is connected to the interior of the air outlet pipe 13, the interior of the protective layer 1 is bonded and connected to the inner layer 5, the air outlet pipe 13 is fixedly connected to the upper surface of the protective layer 1, the upper surface of the protective layer 1 is fixedly connected to the feed pipe 2, the air outlet pipe 13 is fixedly penetrated through the protective layer 1 and extends to the interior of the inner layer 5, the feed pipe 2 is fixedly penetrated through the protective layer 1 and extends to the interior of the inner layer 5, the protective layer is composed of polyester (PET) material, and the inner layer 5 is composed of polyethylene (PE) material.

[0047] Furthermore, when using the device, it is started by connecting an external power supply, and first the raw materials are fed into the inner layer 5 through the feed pipe 2, and then the entire packaging bag is placed in the microwave oven for heating, and then while the packaging bag is heated, the inner layer 5 is protected from the influence of the external environment by the protective layer 1, and then the moisture in the raw materials of the packaging bag is converted into steam, causing the internal pressure of the packaging bag to gradually increase, and the force generated pushes the second leak plate 14 to move upward, driving the top block 8 to move upward, while driving the first return spring 9 to contract.

[0048] Furthermore, the top block 8 moves upward against the blocking block 7, driving the second return spring 11 to contract, while a gap is created between the blocking block 7 and the blocking block groove 15. Then, the air inside the packaging bag passes through the second leak plate 14 into the interior of the air outlet pipe 13, passes through the gap between the blocking block 7 and the blocking block groove 15, passes through the first leak plate 12, and is then filtered by the filter plate 3 before being discharged. After the pressure drops to a certain value, the first return spring 9 and the second return spring 11 are used to reset the blocking block 7 and the top block 8. The materials used in this solution are all polypropylene resins, which are materials that can be used for microwave heating.

[0049] The top block 8 in the air venting device moves upward against the blocking block 7 to drive the second return spring 11 to contract, while a gap is created between the blocking block 7 and the blocking block groove 15. Then, the air inside the packaging bag enters the air outlet pipe 13 and is filtered by the filter plate 3 after passing through the gap between the blocking block 7 and the blocking block groove 15 before being discharged. This avoids the gradual increase of internal pressure in the packaging bag, the expansion of the packaging bag or even rupture of the packaging bag, effectively protects the packaging bag, and improves the stability of the packaging bag. The protective layer 1 increases the overall structural strength of the packaging bag, so that it can better withstand changes in internal pressure during microwave heating and prevent the packaging bag from rupture or deformation. At the same time, the risk of scalding and microwave oven damage is reduced, thereby enhancing safety during use.

[0050] Working principle: first, the raw materials are put into the inner layer 5 through the feed pipe 2, and then the entire packaging bag is placed in the microwave oven for heating. Then, while the packaging bag is heated, the inner layer 5 is protected from the influence of the external environment by the protective layer 1. Then, the moisture in the raw materials of the packaging bag will be converted into steam, causing the internal pressure of the packaging bag to gradually increase, and the force generated pushes the second leak plate 14 to move upward, driving the top block 8 to move upward while driving the first return spring 9 to contract, and then the top block 8 pushes the block 7 upward to drive the second return spring 11 to contract while creating a gap between the block 7 and the block groove 15, and then the air inside the packaging bag passes through the second leak plate 14 into the interior of the air outlet pipe 13, passes through the gap between the block 7 and the block groove 15, and then passes through the first leak plate 12, and then is filtered by the filter plate 3 and discharged. Then, after the pressure drops to a certain value, the block 7 and the top block 8 are reset by the first return spring 9 and the second return spring 11. The materials used in this scheme are all polypropylene resins, which are materials that can be used for microwave heating.

[0051] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A microwave-heated automatic air-release packaging bag, comprising a protective layer (1), characterized in that: A degassing device is provided on the protective layer (1); The air release device comprises a protective shell (4), a filter plate (3) and an air outlet pipe (13); Wherein, the protective shell (4) is rotatably connected to the outer wall of the air outlet pipe (13); The fixing ring on the outer wall of the air outlet pipe (13) is rotatably connected inside a groove provided on the inner wall of the protective shell (4); Wherein, the filter plate (3) is fixedly connected at the upper outlet of the protective shell (4); The inside of the air outlet pipe (13) is fixedly connected to the limiting sleeve (10); Wherein, the limiting sleeve (10) is in a "conical shape"; Wherein, the inner wall of the upper end of the air outlet pipe (13) is fixedly connected with a first leaking plate (12); Wherein, a blocking groove (15) is provided on the upper surface of the limiting sleeve (10); Wherein, a blocking block (7) is slidably connected inside the blocking block groove (15); Wherein, a second return spring (11) is fixedly connected to the lower surface of the first leaking plate (12); Wherein, one end of the second return spring (11) close to the blocking block (7) is fixedly connected to the upper surface of the blocking block (7); Wherein, the outer wall of the lower end of the limiting sleeve (10) is fixedly connected to two fixing blocks (6); Wherein, the lower surfaces of the two fixed blocks (6) are fixedly connected with a first return spring (9); Wherein, a second leaking plate (14) is slidably connected inside the lower end of the air outlet pipe (13); Wherein, one end of the first return spring (9) close to the second leaking plate (14) is fixedly connected to the upper surface of the second leaking plate (14); Wherein, a top block (8) is fixedly connected to the upper surface of the second leaking plate (14); The top block (8) is in a "conical" shape, and one end of the top block (8) close to the blocking block (7) contacts the lower surface of the blocking block (7).

2. The microwave heating automatic air-release packaging bag according to claim 1, characterized in that: The interior of the protective shell (4) is communicated with the interior of the air outlet pipe (13); The inner layer (5) is bonded to the inner part of the protective layer (1).

3. The microwave heating automatic air-release packaging bag according to claim 1, characterized in that: The air outlet pipe (13) is fixedly connected to the upper surface of the protective layer (1); Wherein, a feed pipe (2) is fixedly connected to the upper surface of the protective layer (1).

4. The microwave heating automatic air-release packaging bag according to claim 1, characterized in that: The air outlet pipe (13) is fixedly passed through the protective layer (1) and extends into the interior of the inner layer (5); The feed pipe (2) is fixedly inserted through the protective layer (1) and extends into the interior of the inner layer (5).

5. The microwave heating automatic air-release packaging bag according to claim 1, characterized in that: The protective layer is composed of polyester (PET) material.

6. The microwave heating automatic air-release packaging bag according to claim 2, characterized in that: The inner layer (5) is made of polyethylene (PE) material.

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