Anti-explosion packaging bag for frozen food

Abstract

The utility model discloses an explosion-proof packaging bag for frozen food, which comprises a packaging bag body, an exhaust component is arranged at the top of the packaging bag body close to a sealing end, the exhaust component comprises a mounting pipe, a sealing cap and a flow limiting component, the mounting pipe is fixedly mounted in the packaging bag body, the sealing cap is sleeved at the top of the outer wall of the mounting pipe in a threaded manner, and the flow limiting component is arranged on the sealing cap. The flow limiting assembly is arranged in the mounting pipe, gas in the packaging bag body can be discharged to the outside through the flow limiting assembly, and the flow limiting assembly limits external gas and liquid from entering the packaging bag body through the mounting pipe. The packaging bag body and the exhaust assembly are used in a matched mode, the exhaust assembly comprises the installation pipe, the sealing cap and the flow limiting assembly, when food is refrigerated and transported, the sealing cap can seal the installation pipe, and therefore the packaging bag body can conduct vacuum packaging on the food, the exhaust assembly can exhaust gas in the packaging bag body, and the packaging bag body is convenient to use. And external air can be prevented from entering the packaging bag body from the interior of the mounting pipe.

Description

Technical Field

[0001] The utility model relates to the field of packaging bags, in particular to an explosion-proof packaging bag for frozen food. Background Art

[0002] In order to increase the shelf life of food, the food is usually frozen for protection. When the food is frozen for protection, the food needs to be packaged in a packaging bag, and the inside of the packaging bag is usually vacuum-treated.

[0003] When the food is eaten, the packaging bag is usually directly heated, thereby heating the food inside the packaging bag to ensure the taste of the food inside the packaging bag and avoid loss of taste or contamination of the food inside the packaging bag.

[0004] However, as the food inside the packaging bag is heated, the food will expand and contract, and even produce gas when heated, which will cause the food packaging bag to expand and explode. It is not convenient to discharge the gas inside the food packaging bag when the food is heated, and to avoid the entry of external gas. Utility Model Content

[0005] The purpose of the utility model is to provide an explosion-proof packaging bag for frozen food to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof packaging bag for frozen food, comprising a packaging bag body;

[0007] The top of the packaging bag body near the sealing end is provided with an exhaust assembly, and the exhaust assembly includes:

[0008] A mounting tube, the mounting tube being fixedly mounted inside the packaging bag body;

[0009] A sealing cap, wherein the sealing cap is threadedly sleeved on the top of the outer wall of the mounting tube;

[0010] The flow limiting component is arranged inside the mounting tube, the gas inside the packaging bag body can be discharged to the outside through the flow limiting component, and the flow limiting component limits the external gas and liquid from entering the inside of the packaging bag body through the mounting tube.

[0011] Preferably, a fixing ring is fixedly connected to the bottom of the mounting tube, the fixing ring is located inside the packaging bag body, a positioning ring is slidably sleeved on the outer wall of the mounting tube, and the positioning ring is located between the packaging bag body and the sealing cap.

[0012] Preferably, a protruding circular ring is fixedly connected to the top of the fixing ring, a circular groove matching the protruding circular ring is formed at the bottom of the positioning ring, and fixing glue is applied on one side of the positioning ring and the fixing ring close to the packaging bag body.

[0013] Preferably, a positioning rod is fixedly connected to the top of the fixing collar, a positioning groove is provided at the bottom of the positioning collar, and the top of the outer wall of the positioning rod passes through the packaging bag body and is slidably engaged with the positioning groove.

[0014] Preferably, the current limiting component comprises:

[0015] A mounting sleeve, wherein the mounting sleeve is fixedly mounted inside the mounting tube;

[0016] A first limiting collar and a sealing plug, wherein the first limiting collar is fixedly sleeved on the bottom of the inner cavity of the mounting sleeve, and the sealing plug is slidably clamped in the interior of the first limiting collar.

[0017] Preferably, a second limiting ring is fixedly sleeved on the top of the inner cavity of the installation sleeve, a connecting cylinder is fixedly connected to the top of the sealing plug, a guide rod is fixedly connected to the bottom of the second limiting ring, and a connecting groove matching the guide rod is provided on the top of the connecting cylinder.

[0018] Preferably, a rubber column is slidably sleeved in the inner cavity of the connecting groove, the top of the rubber column is squeezed and fit with the guide rod, and a gas flow channel is formed between the connecting cylinder and the inner wall of the mounting sleeve.

[0019] Preferably, the outer wall of the mounting tube is provided with an inner bolt threadedly inserted with the mounting sleeve, the bottom of the inner cavity of the mounting tube is fixedly sleeved with a sealing ring corresponding to the mounting sleeve, and a sealing gasket is provided between the sealing ring and the mounting sleeve.

[0020] Technical effects and advantages of the utility model:

[0021] The utility model utilizes the coordinated use of a packaging bag body and an exhaust component, wherein the exhaust component comprises a mounting tube, a sealing cap and a flow limiting component. When the food is refrigerated and transported, the sealing cap can seal the mounting tube, so that the packaging bag body can vacuum-pack the food, and the exhaust component can discharge the gas inside the packaging bag body and limit the external gas from entering the packaging bag body from the inside of the mounting tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 It is a schematic diagram of the internal structure of the side part of the utility model.

[0024] Figure 3It is a schematic diagram of the overall structure of the sealing plug of the utility model.

[0025] In the figure: 1. packaging bag body; 2. exhaust assembly; 21. mounting tube; 22. sealing cap; 23. current limiting assembly; 231. mounting sleeve; 232. first limiting collar; 233. sealing plug; 234. second limiting collar; 235. connecting cylinder; 236. guide rod; 237. connecting groove; 238. rubber column; 239. inner bolt; 2310. sealing collar; 2311. sealing pad; 24. fixing collar; 25. positioning collar; 26. protruding ring; 27. positioning rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides Figure 1-3 The explosion-proof packaging bag for frozen food shown in the figure comprises a packaging bag body 1, and an exhaust component 2 is arranged at the top of the packaging bag body 1 near the sealing end, the exhaust component 2 comprises a mounting tube 21, a sealing cap 22 and a flow limiting component 23, the mounting tube 21 is fixedly installed inside the packaging bag body 1, and the sealing cap 22 is threadedly sleeved on the top of the outer wall of the mounting tube 21, when the sealing cap 22 is threadedly sleeved with the mounting tube 21, the encapsulated packaging bag body 1 can be in a sealed state, so that the interior of the packaging bag body 1 is in a vacuum state to package food, the flow limiting component 23 is arranged inside the mounting tube 21, the gas inside the packaging bag body 1 can be discharged to the outside through the flow limiting component 23, and the flow limiting component 23 limits the outside gas and liquid from entering the inside of the packaging bag body 1 through the mounting tube 21, so that when the packaging bag body 1 is heated, the gas inside the packaging bag body 1 can be discharged to prevent it from exploding, and when the packaging bag body 1 is vacuum packaged for food, the packaging bag body 1 can be sealed first, and then the gas can be extracted from the mounting tube 21.

[0028] Furthermore, a fixing ring 24 is fixedly connected to the bottom of the mounting tube 21, and the fixing ring 24 is located inside the packaging bag body 1. A positioning ring 25 is slidably sleeved on the outer wall of the mounting tube 21, and the positioning ring 25 is located between the packaging bag body 1 and the sealing cap 22. A protruding ring 26 is fixedly connected to the top of the fixing ring 24, and a circular groove matching the protruding ring 26 is provided at the bottom of the positioning ring 25. The protruding ring 26 at the top of the fixing ring 24 and the circular groove at the bottom of the positioning ring 25 can improve the sealing between it and the packaging bag body 1, and when the sealing cap 22 is tightened, the sealing cap 22 can apply an extrusion force to the positioning ring 25 against the fixing ring 24, thereby further improving The sealing between the positioning collar 25 and the fixing collar 24 and the packaging bag body 1 is good, and the positioning collar 25 and the fixing collar 24 are coated with fixing glue on one side close to the packaging bag body 1, and the top of the fixing collar 24 is fixedly connected with a positioning rod 27, and the bottom of the positioning collar 25 is provided with a positioning groove, and the top of the outer wall of the positioning rod 27 passes through the packaging bag body 1 and is slidably engaged with the positioning groove. The positioning rod 27 can ensure the relative stability between the positioning collar 25 and the fixing collar 24 to avoid relative sliding of the positioning collar 25 and the fixing collar 24 when tightening or loosening the sealing cap 22, and after the positioning collar 25 and the fixing collar 24 are separated from the packaging bag body 1, they can be recycled, cleaned, disinfected and reused.

[0029] In particular, the flow limiting component 23 includes a mounting sleeve 231, a first limiting ring 232 and a sealing plug 233. The mounting sleeve 231 is fixedly mounted inside the mounting tube 21, and the sealing plug 233 is located on the side of the first limiting ring 232 away from the packaging bag body 1. Therefore, after the air pressure inside the packaging bag body 1 reaches a certain level, the gas inside the packaging bag body 1 can squeeze the sealing plug 233 and flow out from between the sealing plug 233 and the first limiting ring 232. The outer wall of the mounting tube 21 is provided with an internal bolt 239 threadedly inserted with the mounting sleeve 231. The bottom of the inner cavity of the mounting tube 21 is fixedly sleeved with a sealing ring 2310 corresponding to the mounting sleeve 231. A sealing gasket 2311 is provided between the sealing ring 2310 and the mounting sleeve 231. The first limiting ring 232 is fixedly sleeved on the bottom of the inner cavity of the mounting sleeve 231, and the sealing plug 233 is slidably engaged with the inside of the first limiting ring 232.

[0030] Furthermore, a second limiting collar 234 is fixedly sleeved on the top of the inner cavity of the mounting sleeve 231, a connecting cylinder 235 is fixedly connected to the top of the sealing plug 233, a guide rod 236 is fixedly connected to the bottom of the second limiting collar 234, a connecting groove 237 matching the guide rod 236 is provided on the top of the connecting cylinder 235, and a rubber column 238 is slidably sleeved on the inner cavity of the connecting groove 237. The rubber column 238 can give an elastic extrusion force to the connecting cylinder 235 through the guide rod 236, so that the sealing plug 233 and the first limiting collar 232 have an extrusion force, and the gas inside the packaging bag body 1 squeezes the sealing plug 233 out. When the rubber column 238 is squeezed, the air pressure inside the packaging bag body 1 is less than the maximum bearing air pressure inside the packaging bag body 1, thereby avoiding the increase of the gas inside the packaging bag body 1 and causing an explosion. The top of the rubber column 238 is squeezed and fit with the guide rod 236, and a gas flow channel is formed between the connecting cylinder 235 and the inner wall of the mounting sleeve 231.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An explosion-proof packaging bag for frozen food, comprising a packaging bag body (1); It is characterized in that The packaging bag body (1) is provided with an exhaust assembly (2) at the top near the sealing end, and the exhaust assembly (2) comprises: A mounting tube (21), wherein the mounting tube (21) is fixedly mounted inside the packaging bag body (1); A sealing cap (22), wherein the sealing cap (22) is threadedly sleeved on the top of the outer wall of the mounting tube (21); A flow limiting component (23), wherein the flow limiting component (23) is arranged inside the mounting tube (21), and the gas inside the packaging bag body (1) can be discharged to the outside through the flow limiting component (23), and the flow limiting component (23) limits the outside gas and liquid from entering the inside of the packaging bag body (1) through the mounting tube (21).

2. The explosion-proof packaging bag for frozen food according to claim 1, characterized in that: The bottom of the installation tube (21) is fixedly connected with a fixing collar (24), and the fixing collar (24) is located inside the packaging bag body (1). The outer wall of the installation tube (21) is slidably sleeved with a positioning collar (25), and the positioning collar (25) is located between the packaging bag body (1) and the sealing cap (22).

3. The explosion-proof packaging bag for frozen food according to claim 2, characterized in that: The top of the fixing ring (24) is fixedly connected with a protruding circular ring (26), the bottom of the positioning ring (25) is provided with a circular groove matching the protruding circular ring (26), and the sides of the positioning ring (25) and the fixing ring (24) close to the packaging bag body (1) are both coated with fixing glue.

4. The explosion-proof packaging bag for frozen food according to claim 3, characterized in that: The top of the fixing collar (24) is fixedly connected with a positioning rod (27), the bottom of the positioning collar (25) is provided with a positioning groove, and the top of the outer wall of the positioning rod (27) passes through the packaging bag body (1) and is slidably engaged with the positioning groove.

5. The explosion-proof packaging bag for frozen food according to claim 1, characterized in that: The current limiting component (23) comprises: A mounting sleeve (231), wherein the mounting sleeve (231) is fixedly mounted inside the mounting tube (21); A first limiting collar (232) and a sealing plug (233), wherein the first limiting collar (232) is fixedly sleeved on the bottom of the inner cavity of the installation sleeve (231), and the sealing plug (233) is slidably engaged with the interior of the first limiting collar (232).

6. The explosion-proof packaging bag for frozen food according to claim 5, characterized in that: A second limiting collar (234) is fixedly sleeved on the top of the inner cavity of the installation sleeve (231), a connecting cylinder (235) is fixedly connected to the top of the sealing plug (233), a guide rod (236) is fixedly connected to the bottom of the second limiting collar (234), and a connecting groove (237) matching the guide rod (236) is provided on the top of the connecting cylinder (235).

7. The explosion-proof packaging bag for frozen food according to claim 6, characterized in that: The inner cavity of the connecting groove (237) is slidably sleeved with a rubber column (238), the top of the rubber column (238) is pressed and fitted with the guide rod (236), and a gas flow channel is formed between the connecting cylinder (235) and the inner wall of the mounting sleeve (231).

8. The explosion-proof packaging bag for frozen food according to claim 5, characterized in that: The outer wall of the mounting tube (21) is provided with an inner bolt (239) threadedly inserted into the mounting sleeve (231), and the bottom of the inner cavity of the mounting tube (21) is fixedly sleeved with a sealing ring (2310) corresponding to the mounting sleeve (231), and a sealing gasket (2311) is provided between the sealing ring (2310) and the mounting sleeve (231).

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