Penetration type air permeability comparison device

Abstract

The utility model relates to the technical field of packaging bag detection, in particular to a penetration type air permeability comparison device. The penetration type air permeability comparison device comprises a box body provided with a plurality of sealing boxes, a puncture assembly, a pressure adjusting module, an air bottle and a vacuum pump, the puncture assembly is arranged in each sealing box and comprises a puncture needle, a bonding part, an air pump, an air inlet valve and an air outlet valve, and the pressure adjusting module is arranged at the top of the box body. The air pressure between the sealing boxes and the air pressure between the packaging bags are controlled to be consistent. During use, the puncture needle pierces the packaging bag and is filled with colored gas, the colored gas seeps into the sealing box by means of the pressure difference inside and outside the bag, and the volume of the seeped colored gas is observed to visually compare the air permeability of the packaging bag; the interior of the sealing box can be vacuumized through a vacuum pump, inert gas can be filled into the sealing box, rapid air permeability comparison is carried out, and the comparison significance is improved; and air pressure at different altitudes can be simulated through the pressure adjusting module for air permeability comparison, and the effect of visually comparing the air permeability of the packaging bag is effectively achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to packaging bag detection technical field, especially relate to a kind of penetration type air permeability comparison device. BACKGROUND

[0002] The air permeability of packaging material refers to the amount of gas passing through a unit area per unit time under a certain pressure difference. Air permeability is an important indicator of measuring the air permeability of packaging materials, and is widely used in packaging design in food, medicine, daily chemical and other industries to meet different preservation, air permeability or barrier requirements.

[0003] Currently, to understand the air permeability difference of different medical packaging bags, it is necessary to know the air permeability value of the breathable material used in the medical packaging bag, so as to compare the air permeability difference by numerical value. However, for most people, they do not understand the air permeability value reflected by the air permeability, let alone the size of the air permeability degree presented by the difference in air permeability value. Therefore, there is still a lack of an intuitive air permeability comparison method in the current field. UTILITY MODEL CONTENT

[0004] To solve the technical problem of how to intuitively show the air permeability of medical packaging bags, the utility model provides a kind of penetration type air permeability comparison device, which is suitable for completed sealed medical packaging bags, the device includes: box, puncture assembly and pressure regulating module;

[0005] The box includes several sealed boxes, and each sealed box is provided with a puncture assembly on the inside top;

[0006] The puncture assembly includes a puncture needle, an adhesive part, an air pump, an air inlet valve and an air outlet valve;

[0007] The puncture needle is fixed through the center of the adhesive part;

[0008] The pressure regulating module is provided on the top of the box.

[0009] In an embodiment, the box is partially transparent or fully transparent structure.

[0010] In an embodiment, the side wall of the sealed box is provided with a scale line.

[0011] In an embodiment, the adhesive part includes an adhesive sheet and a limiting block stacked with each other.

[0012] Further, the adhesive sheet is attached with an adhesive agent at the bottom.

[0013] In an embodiment, the pressure regulating module is a barometer and / or a micro pressure difference sensor.

[0014] Further, the micro pressure difference sensor includes a box-in micro pressure difference sensor, which is provided on the inner wall of the sealed box.

[0015] Further, the micro pressure difference sensor further comprises a micro pressure difference sensor in the bag, which is arranged in the inner wall of the puncture needle.

[0016] In an embodiment, a plurality of gas cylinders and a vacuum pump are arranged at the bottom of the box.

[0017] Further, the gas cylinder comprises an ozone cylinder.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The penetrating type air permeability comparison device provided by the utility model can obtain the volume of the exuded gas directly and intuitively, so that the air permeability of the packaging bag can be compared directly and intuitively.

[0020] The penetrating type air permeability comparison device provided by the utility model can also perform vacuumization on the sealed box by the vacuum pump, increase the pressure difference between the inside and outside of the packaging bag, and accelerate the exuding process of the colored gas; inert gas can be filled into the sealed box to extrude the exuded colored gas, so that the volume observation of the colored gas is more obvious and intuitive; the pressure adjusting module can be used to simulate the air pressure at different altitudes, so that the air permeability of the packaging bag at different altitudes can be compared directly and quickly. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0022] Figure 1 The penetrating type air permeability comparison device structure schematic view provided by the embodiment 1 of the utility model is shown in the figure.

[0023] Figure 2 The puncture assembly structure schematic view provided by the embodiment 1 of the utility model is shown in the figure.

[0024] Reference signs:

[0025] DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0027] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0028] Embodiment 1

[0029] The embodiment provides a kind of penetration type air permeability contrast device, as shown in Figure Figure 1 Including: box 100, puncture assembly 200 and pressure regulating module 300;

[0030] Box 100 includes several sealed boxes 110, and each sealed box 110 inside top is equipped with a puncture assembly 200;

[0031] As shown in Figure Figure 2 Puncture assembly 200 includes puncture needle 210, adhesive part 220, air pump 230, air inlet valve 240 and air outlet valve 250;

[0032] Wherein, puncture needle 210 is fixedly penetrated in the center of adhesive part 220;

[0033] Pressure regulating module 300 is located at the top of box 100.

[0034] Specific work, by puncture needle 210 into the inside of the measured packaging bag, adhesive part 220 adheres packaging bag surface and provides limit resistance pressure, air pump 230 cooperates with air inlet valve 240 and air outlet valve 250 and works, realizes the vacuumization of packaging bag, fills in colored gas work.

[0035] Box 100 is partially transparent or totally transparent structure.

[0036] Specific work, can be directly observed by the partially transparent or totally transparent box 100 colored gas exudation in packaging bag.

[0037] Sealed box 110 side wall is equipped with scale line.

[0038] In particular, the amount of colored gas permeation can be compared by the scale line on the side wall of the sealed box 110.

[0039] The adhesive part 220 comprises an adhesive sheet 221 and a limiting block 222 stacked with each other.

[0040] The adhesive sheet 221 is attached with an adhesive agent at the bottom.

[0041] In particular, the packaging bag is pushed to make the puncture needle 210 pierce into the packaging bag until the packaging bag abuts against the adhesive part 220, and is limited by the limiting block 222, and meanwhile, the adhesive agent at the bottom of the adhesive sheet 221 can be attached to and hold the packaging bag.

[0042] The pressure adjusting module 300 is a barometer and / or a micro pressure difference sensor.

[0043] The micro pressure difference sensor comprises an in-box micro pressure difference sensor 311 arranged on the inner wall of the sealed box 110.

[0044] In particular, the pressure adjusting module 300 is used to control the pressure balance among a plurality of sealed boxes 110 to keep the pressure consistent and reduce the error.

[0045] The micro pressure difference sensor further comprises an in-bag micro pressure difference sensor 312 arranged on the inner wall of the puncture needle 210.

[0046] In particular, the pressure adjusting module 300 can obtain the pressure information in the packaging bag through the in-bag micro pressure difference sensor 312 to control the pressure of the colored gas in each packaging bag to keep consistent and reduce the error.

[0047] Further, a plurality of gas cylinders 400 and a vacuum pump 500 are arranged at the bottom of the box body 100.

[0048] In particular, the vacuum pump 500 can be used to perform vacuumization on the sealed box 110 to increase the pressure difference between the inside and outside of the packaging bag, accelerate the permeation rate of the colored gas, and meanwhile, the reaction between the colored gas and the air in the sealed box 110 after the permeation of the colored gas can be reduced to improve the testing accuracy.

[0049] Further, inert gas can be filled into the sealed box 110 to reduce the diffusion space of the colored gas, so that the observation is more intuitive.

[0050] The gas cylinder 400 comprises an ozone cylinder.

[0051] In the specific work, ozone is filled into the packaging bag to be tested. The ozone is light blue at room temperature, and the relative molecular mass is 48, while the relative molecular mass of air is 29. When the ozone diffuses from the inside of the packaging bag to be tested to the outside, it will sink to the bottom of the sealed box 110. By observing the scale of the light blue ozone sinking to the bottom of the sealed box 110, the volume of ozone leaked from the packaging bag to be tested can be quickly obtained, so that the air permeability of the packaging bag to be tested can be compared.

[0052] In this embodiment, preferably, the colored gas is ozone, which is a light blue gas at room temperature and is a strong oxidizing agent. It is commonly used for water disinfection and air purification, and can effectively remove harmful substances in water and bacteria, viruses and other microorganisms in air, thereby improving water quality and air quality. At the same time, ozone can also be naturally decomposed in nature and will not cause long-term pollution to the environment. Therefore, using ozone as the colored gas filled into the bag can not only intuitively read the volume of the leaked gas at room temperature for air permeability comparison, but also help maintain the cleanliness of the box body and is safe and environmentally friendly.

[0053] Embodiment 2

[0054] Based on embodiment 1, the present embodiment provides a use method of the penetration type air permeability comparison device, comprising the following steps:

[0055] S10, the packaging bag is placed in the sealed box, the puncture needle is used to pierce the packaging bag and press against the bonding part, the adhesive sheet closes the opening and hangs the packaging bag;

[0056] S20, the pressure adjusting module controls the vacuum pump to extract the gas in the sealed box to control the air pressure in the first sealed box and the second sealed box to be consistent;

[0057] S30, the gas pump is started to extract the gas in the packaging bag through the puncture needle, and ozone is filled after exhaustion, and the pressure adjusting module is used to control the ozone air pressure in the first packaging bag and the second packaging bag to be consistent;

[0058] S40, the volume of the leaked ozone is observed through the scale on the side wall of the sealed box to obtain the air permeability comparison result of the packaging bag.

[0059] Embodiment 3

[0060] Based on embodiments 1 and 2, the present embodiment provides a method for quickly comparing air permeability by using a penetration type air permeability comparison device. The difference from embodiment 2 is only that in step S20, the vacuum pump is used to extract the gas in the sealed box to a vacuum state.

[0061] In this embodiment, the outside of the packaging bag to be tested is in a vacuum state, and the inside of the bag is in a positive pressure state. Under the action of a large pressure difference, the process of ozone diffusion from the inside of the bag to the outside of the packaging bag can be accelerated, and the air permeability can be quickly compared.

[0062] Embodiment 4

[0063] On the basis of Embodiments 1 and 2, this embodiment provides a method for simulating the air permeability contrast at different altitudes by using the penetrating air permeability contrast device. The difference from Embodiment 2 is that, in step S20, the air pressure in the sealed box is controlled to be 89.874 MPa or 79.494 MPa or 70.114 MPa by the pressure adjusting module, and the air permeability of different packaging bags at altitudes of 1 km, 2 km and 3 km is tested in turn.

[0064] Embodiment 5

[0065] On the basis of Embodiments 1, 2 and 3, this embodiment provides a method for rapidly and significantly contrasting the air permeability by using the penetrating air permeability contrast device. The difference from Embodiment 2 is that, before step S40, helium is filled into the sealed box.

[0066] In this embodiment, helium is not soluble in ozone. Before the observation of the ozone permeation, the helium is filled into the sealed box, which can seize the ozone distribution space, accelerate and squeeze the ozone aggregation, make the ozone concentration in the unit space rise and the color deepen, and more significantly obtain the ozone permeation volume information, so as to realize the rapid and significant contrast of the air permeability.

[0067] Although the terms such as penetrating, air permeability, puncture assembly, pressure adjusting module, puncture needle, adhesive part, adhesive sheet, limiting block, adhesive, micro pressure difference sensor, sealed box and the like are used more in this document, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; any kind of additional limitation by interpreting them is contrary to the spirit of the utility model.

[0068] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A through-air permeability contrast device, characterized by, Include: A box (100), a puncture assembly (200) and a pressure regulating module (300); The box (100) includes several sealed boxes (110), and each of the inside top of the several sealed boxes (110) is provided with a puncture assembly (200); The puncture assembly (200) includes a puncture needle (210), an adhesive part (220), an air pump (230), an air inlet valve (240) and an air outlet valve (250); Wherein, the puncture needle (210) is fixed through the center of the adhesive part (220); The pressure regulating module (300) is arranged on the top of the box (100).

2. The through-air permeability contrast device of claim 1, wherein: The box (100) is partially transparent or fully transparent structure.

3. The through-air permeability contrast device of claim 1, wherein: The side wall of the sealed box (110) is provided with a scale line.

4. The device of claim 1, wherein: The adhesive part (220) includes adhesive sheets (221) and limit blocks (222) stacked with each other.

5. The through-air poromter contrast device of claim 4, wherein: The bottom of the adhesive sheet (221) is attached with an adhesive.

6. The device of claim 1, wherein: The pressure regulating module (300) is a barometer and / or a micro pressure difference sensor.

7. The device of claim 6, wherein: The micro pressure difference sensor includes an in-box micro pressure difference sensor (311) arranged on the inner wall of the sealed box (110).

8. The device of claim 6, wherein: The micro pressure difference sensor also includes an in-bag micro pressure difference sensor (312) arranged on the inner wall of the puncture needle (210).

9. The device of claim 1, wherein: It also includes several gas cylinders (400) and a vacuum pump (500) arranged at the bottom of the box (100).

10. The device of claim 9, wherein: The gas cylinder (400) includes an ozone cylinder.

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