Barrier testing device

Abstract

The utility model provides a kind of barrier test device, including first body, second body and gas measuring piece.First body is equipped with first cavity, and first gas inlet channel and first gas outlet channel being communicated with first cavity.First cavity extends to the side of first body.Second body is equipped with second cavity, and second gas inlet channel and second gas outlet channel being communicated with second cavity.Second cavity extends to the side of second body close to first cavity.First body is installed on second body.Gas measuring piece is communicated with second gas outlet channel, and is used to measure the content of test gas.The barrier test device in the application can satisfy the barrier test of sample membrane, loss sample container and non-loss sample container, without separately purchasing different barrier test equipment to respectively test the barrier of sample membrane and sample container, reduce the purchase cost of user, reduce the occupied space, improve the practicability of barrier test device.

Description

Technical Field

[0001] This utility model relates to the field of testing devices, and in particular to a barrier testing device. Background Technology

[0002] Barrier testing equipment is a key tool in materials science, the packaging industry, and product quality control. It is used to accurately determine the barrier properties of materials (such as plastic films and composite packaging containers) against gases (such as oxygen and carbon dioxide), water vapor, or other media. Currently, when conducting barrier testing on sheets and containers, separate barrier testing equipment and auxiliary temperature and humidity control equipment must be purchased for each, resulting in high purchase costs for users. Furthermore, the separately purchased barrier testing equipment and auxiliary temperature and humidity control equipment require significant space. Utility Model Content

[0003] Therefore, it is necessary to provide a barrier testing device to address the problem that when conducting barrier tests on sheets and containers, different barrier testing equipment and auxiliary temperature and humidity control equipment for containers need to be purchased separately, resulting in high purchase costs for users and large space requirements for the separately purchased barrier testing equipment and auxiliary temperature and humidity control equipment for containers.

[0004] The technical solution is as follows:

[0005] On the one hand, a barrier property testing device is provided, comprising:

[0006] The first body has a first cavity, and a first air inlet channel and a first air outlet channel, both of which are connected to the first cavity. The first cavity extends to one side of the first body.

[0007] The second body has a second cavity, a second air inlet channel and a second air outlet channel that are both connected to the second cavity, and the second cavity extends to the side of the second body close to the first cavity;

[0008] A gas measuring element is connected to the second gas outlet channel and is used to measure the content of the test gas;

[0009] When the first body presses the sheet onto the second body, the sheet is located between the first cavity and the second cavity, separating the first cavity and the second cavity; when the first body is installed on the second body and the sheet is not pressed on, the first cavity and the second cavity are connected to form a closed space.

[0010] The technical solution will be further explained below:

[0011] In one embodiment, the first cavity is further provided with a hollow layer spaced apart from the first cavity and a fluid inlet and outlet communicating with the hollow layer, the hollow layer being wrapped around the outside of the first cavity.

[0012] In one embodiment, the first cavity includes an outer liner, an inner liner, and a sealing adapter. The outer liner covers the outside of the inner liner and is spaced apart from the inner liner. The sealing adapter is installed at the opening of the outer liner and forms the hollow layer with the outer liner and the inner liner. The first cavity is located inside the inner liner, and the fluid inlet and outlet are located on the outer liner.

[0013] In one embodiment, the sealing adapter is provided with a first air inlet communicating with the first cavity, and the second cavity is provided with a second air inlet. The second air inlet is configured to communicate with the first air inlet when the first cavity is installed on the second cavity to form the first air intake channel.

[0014] In one embodiment, the sealing adapter is provided with a first air outlet communicating with the first cavity, and the outer liner of the cover is provided with a second air outlet, the second air outlet communicating with the first air outlet to form the first air outlet channel;

[0015] Alternatively, the inner lining of the cover may be provided with a third air outlet communicating with the first cavity, and the third air outlet, the hollow layer and the fluid inlet and outlet may be connected in sequence to form the first air inlet channel.

[0016] In one embodiment, the barrier testing device further includes a temperature control device and a temperature measuring element. The first body and / or the second body are equipped with the temperature control device and the temperature measuring element. The temperature control device is communicatively connected to the temperature measuring element and is used to regulate the temperature.

[0017] In one embodiment, when a barrier test is performed on a damaged sample container, the sheet is a first sealing member, the first body presses the first sealing member onto the second body, the damaged sample container is located in the first cavity and is installed on the first sealing member so that the first sealing member seals the damaged sample container, and the first sealing member is provided with an air hole for communicating the inner cavity of the damaged sample container and the second cavity.

[0018] In one embodiment, the barrier testing device further includes a first drainage tube and a second drainage tube. When a barrier test is performed on a damaged sample container, the first body is mounted on the second body without the sheet being pressed against it. The opening of the damaged sample container is fitted with a second sealing member and is located within the enclosed space. One end of the first drainage tube is connected to the second air inlet channel, and the other end passes through the second sealing member and extends into the inner cavity of the damaged sample container. One end of the second drainage tube is connected to the second air outlet channel, and the other end passes through the second sealing member and extends into the inner cavity of the damaged sample container.

[0019] In one embodiment, the barrier test device further includes a first control element and a second control element. The first control element is installed on the first air inlet channel and is used to control the opening or closing of the first air inlet channel. The second control element is installed on the first air outlet channel and is used to control the opening or closing of the first air outlet channel. When a barrier test is performed on a non-destructive sample container, the first body is installed on the second body and the sheet is not pressed against it. The non-destructive sample container is located in the enclosed space. The first control element controls the first air inlet channel to close, and the second control element controls the first air outlet channel to close.

[0020] In one embodiment, when a barrier test is performed on a sample membrane, the sheet is the sample membrane, and the first body presses the sample membrane onto the second body accordingly.

[0021] The barrier testing device in the above embodiments can perform barrier testing on sample films, damaged sample containers, and non-destructive sample containers without the need to purchase separate barrier testing equipment for sample film barrier testing and barrier testing equipment for sample container barrier testing, thereby reducing user purchase costs, minimizing space occupation, and improving the practicality of the barrier testing device. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1This is a schematic diagram of the barrier testing device of the first embodiment when testing a sample membrane.

[0025] Figure 2 This is a schematic diagram of the barrier testing device according to the second embodiment when testing a damaged sample container.

[0026] Figure 3 This is a schematic diagram of the barrier testing device according to the third embodiment when testing a sample membrane.

[0027] Figure 4 This is a schematic diagram of the barrier testing device according to the fourth embodiment when testing a damaged sample container.

[0028] Figure 5 This is a schematic diagram of the barrier testing device according to the fifth embodiment when testing a non-destructive sample container.

[0029] Explanation of reference numerals in the attached figures:

[0030] 10. Barrier testing device; 100. First body; 110. First cavity; 120. First air inlet channel; 130. First air outlet channel; 140. Hollow layer; 150. Outer liner; 151. Fluid inlet / outlet; 152. Second air outlet; 160. Inner liner; 161. Third air outlet; 170. Sealing adapter; 171. First air inlet; 172. Ventilation column; 173. First air outlet; 200. 210. Second body; 220. Second air inlet channel; 230. Second air outlet channel; 241. Second air inlet; 300. Gas measuring element; 410. First drainage tube; 420. Second drainage tube; 430. Pipe fitting; 500. Temperature control element; 600. Temperature measuring element; 20. Sample membrane; 30. First sealing element; 40. Destructive sample container; 50. Second sealing element; 60. Non-destructive sample container. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] like Figure 1As shown, in one embodiment, a barrier property testing device 10 is provided, including a first body 100, a second body 200, and a gas measuring element 300. The first body 100 has a first cavity 110, and a first air inlet channel 120 and a first air outlet channel 130, both communicating with the first cavity 110. The first cavity 110 extends to one side of the first body 100. The second body 200 has a second cavity 210, and a second air inlet channel 220 and a second air outlet channel 230, both communicating with the second cavity 210. The second cavity 210 extends to the side of the second body 200 near the first cavity 110. The gas measuring element 300 communicates with the second air outlet channel 230 and is used to measure the content of the test gas. When the first body 100 presses a sheet onto the second body 200, the sheet is located between the first cavity 110 and the second cavity 210, separating the first cavity 110 and the second cavity 210. When the first body 100 is mounted on the second body 200 and no sheet is pressed, the first cavity 110 and the second cavity 210 are connected to form a closed space.

[0033] The gas measuring element 300 can be configured as any existing structure capable of measuring the content of the test gas. The shape and size of the first cavity 110, the shape and size of the second cavity 210, the number of first air inlet channels 120, and the number of first air outlet channels 130 can all be flexibly adjusted according to actual usage needs.

[0034] like Figure 1 and Figure 2 As shown, the first cavity 110 further includes a hollow layer 140 spaced apart from the first cavity 110, and a fluid inlet / outlet 151 communicating with the hollow layer 140. The hollow layer 140 surrounds the outside of the first cavity 110. Thus, a constant-temperature fluid (e.g., a constant-temperature gas or a constant-temperature liquid) can be supplied to the hollow layer 140 through the fluid inlet / outlet 151, or a vacuum can be drawn into the hollow layer 140 through the fluid inlet / outlet 151, giving the hollow layer 140 a heat-insulating function. This ensures that the sample membrane 20, the damaged sample container 40, and the non-damaged sample container 60 all diffuse and permeate in a constant-temperature environment, improving the reliability of the barrier property testing device 10.

[0035] It should be noted that the hollow layer 140 has temperature and humidity control functions. When conducting barrier tests on sheets or containers, there is no need to purchase additional container auxiliary temperature and humidity control equipment, which reduces the user's purchase cost and the space required for testing.

[0036] The number of fluid inlets / outlets 151 and the number of hollow layers 140 can be flexibly adjusted according to actual usage needs. For example, the number of fluid inlets / outlets 151 can be one, two, or more.

[0037] Specifically in this embodiment, when the hollow layer 140 is evacuated through the fluid inlet and outlet 151, the hollow layer 140 can be evacuated through the fluid inlet and outlet 151 and then all fluid inlet and outlet 151 can be sealed with plugs. Alternatively, the fluid inlet and outlet 151 can be connected to an external pump for continuous evacuation, and any excess fluid inlet and outlet 151 can be sealed with plugs.

[0038] like Figure 1 As shown, optionally, the first cavity 110 includes an outer liner 150, an inner liner 160, and a sealing adapter 170. The outer liner 150 covers the outside of the inner liner 160 and is spaced apart from the inner liner 160. The sealing adapter 170 is installed at the opening of the outer liner 150 and forms a hollow layer 140 with the outer liner 150 and the inner liner 160. The first cavity 110 is located inside the inner liner 160. A fluid inlet / outlet 151 is provided on the outer liner 150. Thus, the outer liner 150, the inner liner 160, and the sealing adapter 170 are assembled into a single unit to facilitate the manufacturing of the first body 100.

[0039] Both the outer liner 150 and the inner liner 160 can be made of thermal insulation material. Specifically, in this embodiment, the outer liner 150 is configured as a constant temperature liner. The inner liner 160 is configured as a constant temperature liner. The sealing adapter 170 is configured as a sealing adapter seat.

[0040] like Figure 1 As shown, in one embodiment, the sealing adapter 170 is provided with a first air inlet 171 communicating with the first cavity 110. The second cavity 210 is provided with a second air inlet 241. The second air inlet 241 is configured to communicate with the first air inlet 171 when the first cavity 110 is mounted on the second cavity 210 to form a first air intake passage 120.

[0041] like Figure 1 As shown, in this specific embodiment, the first body 100 further includes a ventilation column 172 and a second sealing ring. One end of the ventilation column 172 extends into and communicates with the first air inlet 171. The second sealing ring is fitted onto the outer wall of the ventilation column 172 and is used to seal the outer wall of the ventilation column 172 with the inner wall of the first air inlet 171. The end of the ventilation column 172 away from the first air inlet 171 is used for sealing communication with the second air inlet 241. In this way, the test gas can pass through the second air inlet 241, the ventilation column 172, and the first air inlet 171 in sequence and enter the second cavity 210 stably and reliably.

[0042] like Figure 1As shown, optionally, the sealing adapter 170 is provided with a first vent 173 communicating with the first cavity 110. The outer liner 150 is provided with a second vent 152. The second vent 152 communicates with the first vent 173 to form a first venting channel 130. In this way, the test gas in the second cavity 210 can be smoothly and quickly discharged through the first vent 173 and the second vent 152 in sequence.

[0043] like Figure 3 As shown, optionally, the inner liner 160 is provided with a third air outlet 161 communicating with the first cavity 110. The third air outlet 161, the hollow layer 140, and the fluid inlet / outlet 151 are sequentially connected to form a first air inlet channel 120. In this way, the test gas enters the hollow layer 140 through the third air outlet 161 and exits from the fluid inlet / outlet 151, so that the temperature inside the hollow layer 140 is the same as or close to the temperature inside the second cavity 210. The hollow layer 140 can buffer the external ambient temperature, ensuring that the first cavity 110 can maintain a constant temperature and improving the reliability of the barrier property testing device 10.

[0044] The number of third air outlets 161 can be flexibly adjusted according to actual usage needs. In other embodiments, the sealing adapter 170 may be provided with a third air outlet 161 communicating with the first cavity 110, or both the inner liner 160 and the sealing adapter 170 may be provided with a third air outlet 161 communicating with the first cavity 110.

[0045] like Figure 1 As shown, in one embodiment, the barrier property testing device 10 further includes a temperature control unit 500 and a temperature measuring element 600. The first body 100 and / or the second body 200 are equipped with the temperature control unit 500 and the temperature measuring element 600. The temperature control unit 500 is communicatively connected to the temperature measuring element 600 and is used to regulate the temperature. Thus, the temperature measuring element 600 can measure the temperature of the first body 100 and / or the second body 200 in real time and feed it back to the temperature control unit 500. The temperature control unit 500 then regulates the temperature of the first body 100 and / or the second body 200 according to the feedback temperature, ensuring a constant temperature environment within the first cavity 110 and the second cavity 210, thereby improving the practicality of the barrier property testing device 10.

[0046] The temperature control device 500 can be any existing structure capable of controlling and regulating temperature. The temperature measuring element 600 can be a temperature sensor, thermometer, or other device capable of measuring temperature. The temperature control device 500 can communicate with the temperature measuring element 600 via a data cable, power cord, Bluetooth, wireless communication network technology, or other means. The first body 100 and / or the second body 200 are equipped with the temperature control device 500 and the temperature measuring element 600. This can be done on only the first body 100, only the second body 200, or both the first body 100 and the second body 200.

[0047] In this embodiment, the temperature control unit 500 is mounted on the outer wall of the second body 200. The temperature measuring element 600 is mounted inside the second body 200. In other embodiments, the temperature measuring element 600 may also be mounted inside the first cavity 110 or the second cavity 210.

[0048] It should be noted that a sheet may or may not be pressed between the first cavity 110 and the second cavity 210. The sheet includes, but is not limited to, the sample membrane 20 and a sealing element (e.g., a sealing sheet) for sealing the opening of the sample container. Specifically, in this embodiment, a first sealing ring is provided on the side of the first body 100 near the second body 200, and the first sealing ring is used to press the sheet. The surface of the first body 100 and the second body 200 can be sealed by applying sealant, or it can be directly pressed and adhered to the surface of the second body 200 for sealing.

[0049] like Figure 1 As shown, in one embodiment, when performing a barrier test on the sample membrane 20, the sheet material is the sample membrane 20, and the first body 100 presses the sample membrane 20 onto the second body 200. Test gas is supplied to the first cavity 110 through the first air inlet channel 120, and carrier gas is supplied to the second cavity 210 through the second air inlet channel 220. The test gas in the first cavity 110 permeates through the sample membrane 20 to the second cavity 210 and mixes with the carrier gas. The mixed gas is then supplied to the gas measuring device 300 through the second air outlet channel 230. The gas measuring device 300 measures the content of the test gas in the mixed gas, and then determines the barrier performance of the sample membrane 20 based on the content of the test gas.

[0050] like Figure 2As shown, in one embodiment, when a barrier test is performed on the damaged sample container 40, the sheet material is the first sealing element 30, and the first body 100 presses the first sealing element 30 onto the second body 200. The damaged sample container 40 is located inside the first cavity 110 and is mounted on the first sealing element 30 so that the first sealing element 30 seals the damaged sample container 40. The first sealing element 30 is provided with vents for connecting the inner cavity of the damaged sample container 40 and the second cavity 210. Test gas is supplied to the first cavity 110 through the first air inlet channel 120, and carrier gas is supplied to the second cavity 210 through the second air inlet channel 220. The test gas in the first cavity 110 passes through the damaged sample container 40 and enters the inner cavity of the damaged sample container 40. The test gas in the inner cavity of the damaged sample container 40 then passes through the vent to the second cavity 210 and mixes with the carrier gas. The mixed gas is supplied to the gas measuring device 300 through the second air outlet channel 230. The gas measuring device 300 measures the content of test gas in the mixed gas, and then judges the barrier performance of the damaged sample container 40 based on the content of test gas.

[0051] The size and number of pores can be flexibly adjusted according to actual usage needs. Specifically, in this embodiment, sealant can be applied to the connection between the damaged sample container 40 and the first sealing member 30 for sealing.

[0052] like Figure 4 As shown, in one embodiment, the barrier testing device 10 further includes a first drainage tube 410 and a second drainage tube 420. When performing a barrier test on the damaged sample container 40, the first body 100 is mounted on the second body 200 without any sheet material being pressed against it. The opening of the damaged sample container 40 is fitted with a second sealing member 50 and is located within a closed space. One end of the first drainage tube 410 is connected to the second air inlet channel 220, and the other end passes through the second sealing member 50 and extends into the inner cavity of the damaged sample container 40. One end of the second drainage tube 420 is connected to the second air outlet channel 230, and the other end passes through the second sealing member 50 and extends into the inner cavity of the damaged sample container 40. Test gas is delivered to the enclosed space through the first air inlet channel 120, and carrier gas is delivered to the inner cavity of the damaged sample container 40 through the second air inlet channel 220 and the first drainage pipe 410. The test gas in the enclosed space passes through the damaged sample container 40 and enters the inner cavity of the damaged sample container 40. The test gas and carrier gas in the inner cavity of the damaged sample container 40 are mixed. The mixed gas is delivered to the gas measuring device 300 through the second drainage pipe 420 and the second air outlet channel 230. The gas measuring device 300 measures the content of test gas in the mixed gas, and then judges the barrier performance of the damaged sample container 40 based on the content of test gas.

[0053] It should be noted that damaged sample container 40 refers to a sample container with incomplete packaging.

[0054] like Figure 4 As shown, optionally, the barrier test device 10 further includes two pipe fittings 430. The two pipe fittings 430 are respectively installed at one end of the second air inlet channel 220 near the second cavity 210 and at the other end of the second air outlet channel 230 near the second cavity 210 via screwing, plugging, or other sealing connections. One of the two pipe fittings 430 connects the second air inlet channel 220 and the first drainage pipe fitting 410. The other of the two pipe fittings 430 connects the second air outlet channel 230 and the second drainage pipe fitting 420. The second sealing member 50 is provided with a first connecting hole and a second connecting hole. The end of the first drainage pipe fitting 410 away from the second air inlet channel 220 passes through the first connecting hole and extends to the bottom of the damaged sample container 40. The end of the second drainage pipe fitting 420 away from the second air outlet channel 230 passes through the second connecting hole and extends to the opening of the damaged sample container 40. The end of the first drain pipe 410 away from the second air inlet channel 220 and the end of the second drain pipe 420 away from the second air outlet channel 230 are both sealed with the second sealing member 50.

[0055] like Figure 5 As shown, optionally, the barrier test device 10 further includes a first control element and a second control element. The first control element is installed in the first air inlet channel 120 and is used to control the opening or closing of the first air inlet channel 120. The second control element is installed in the first air outlet channel 130 and is used to control the opening or closing of the first air outlet channel 130. When performing a barrier test on the non-destructive sample container 60, the first body 100 is installed on the second body 200 without any sheet material being pressed against it, the non-destructive sample container 60 is located in a closed space, the first control element controls the first air inlet channel 120 to close, and the second control element controls the first air outlet channel 130 to close. Carrier gas is delivered to the enclosed space through the second air inlet channel 220. The test gas in the inner cavity of the non-destructive sample container 60 passes through the non-destructive sample container 60 into the enclosed space. The test gas in the enclosed space mixes with the carrier gas. The mixed gas is delivered to the gas measuring device 300 through the second air outlet channel 230. The gas measuring device 300 measures the content of the test gas in the mixed gas, and then judges the barrier performance of the non-destructive sample container 60 based on the content of the test gas.

[0056] Both the first and second control components can be configured as shut-off valves, plugs, or other control devices.

[0057] It should be noted that the non-destructive sample container 60 refers to a sample container that is completely packaged. When the barrier test device 10 is used to perform barrier tests on the non-destructive sample container 60, the first air inlet channel 120 and the first air outlet channel 130 may not be provided on the first body 100.

[0058] The barrier testing device 10 in the above embodiments can perform barrier tests on sample membrane 20, damaged sample container 40 and non-damaged sample container 60 without the need to purchase separate barrier testing equipment for sample membrane 20 and barrier testing equipment for sample container, thereby reducing user purchase costs, reducing space occupation, and improving the practicality of barrier testing device 10.

[0059] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0060] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0062] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0063] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0064] It should also be understood that, in interpreting the connection or positional relationships of components, although not explicitly described, connection and positional relationships are interpreted to include a range of error, which should be within the acceptable deviation range of a specific value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0065] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A barrier property testing device, characterized in that, include: The first body has a first cavity, and a first air inlet channel and a first air outlet channel, both of which are connected to the first cavity. The first cavity extends to one side of the first body. The second body has a second cavity, a second air inlet channel and a second air outlet channel that are both connected to the second cavity, and the second cavity extends to the side of the second cavity close to the first cavity; A gas measuring element is connected to the second gas outlet channel and is used to measure the content of the test gas; When the first body presses the sheet onto the second body, the sheet is located between the first cavity and the second cavity, separating the first cavity and the second cavity; when the first body is installed on the second body and the sheet is not pressed on, the first cavity and the second cavity are connected to form a closed space.

2. The barrier property testing device according to claim 1, characterized in that, The first cavity is further provided with a hollow layer spaced apart from the first cavity and a fluid inlet and outlet communicating with the hollow layer, the hollow layer being wrapped around the outside of the first cavity.

3. The barrier property testing device according to claim 2, characterized in that, The first cavity includes an outer liner, an inner liner, and a sealing adapter. The outer liner covers the outside of the inner liner and is spaced apart from the inner liner. The sealing adapter is installed at the opening of the outer liner and forms the hollow layer with the outer liner and the inner liner. The first cavity is located inside the inner liner, and the fluid inlet and outlet are located on the outer liner.

4. The barrier property testing device according to claim 3, characterized in that, The sealing adapter is provided with a first air inlet communicating with the first cavity, and the second cavity is provided with a second air inlet. The second air inlet is configured to communicate with the first air inlet when the first cavity is installed on the second cavity to form the first air intake channel.

5. The barrier property testing device according to claim 3, characterized in that, The sealing adapter is provided with a first air outlet communicating with the first cavity, and the outer liner of the cover is provided with a second air outlet. The second air outlet is connected with the first air outlet to form the first air outlet channel. Alternatively, the inner lining of the cover may be provided with a third air outlet communicating with the first cavity, and the third air outlet, the hollow layer and the fluid inlet and outlet may be connected in sequence to form the first air inlet channel.

6. The barrier property testing device according to claim 1, characterized in that, The barrier testing device further includes a temperature control unit and a temperature measuring element. The first body and / or the second body are equipped with the temperature control unit and the temperature measuring element. The temperature control unit is communicatively connected to the temperature measuring element and is used to regulate the temperature.

7. The barrier property testing apparatus according to any one of claims 1 to 6, characterized in that, When a barrier test is performed on a damaged sample container, the sheet is the first sealing element. The first body presses the first sealing element onto the second body. The damaged sample container is located in the first cavity and is installed on the first sealing element so that the first sealing element seals the damaged sample container. The first sealing element is provided with vents for connecting the inner cavity of the damaged sample container and the second cavity.

8. The barrier property testing apparatus according to any one of claims 1 to 6, characterized in that, The barrier testing device further includes a first drainage tube and a second drainage tube. When a barrier test is performed on a damaged sample container, the first body is mounted on the second body without the sheet being pressed down. The opening of the damaged sample container is fitted with a second sealing member and is located within the enclosed space. One end of the first drainage tube is connected to the second air inlet channel, and the other end passes through the second sealing member and extends into the inner cavity of the damaged sample container. One end of the second drainage tube is connected to the second air outlet channel, and the other end passes through the second sealing member and extends into the inner cavity of the damaged sample container.

9. The barrier property testing apparatus according to any one of claims 1 to 6, characterized in that, The barrier testing device further includes a first control component and a second control component. The first control component is installed on the first air inlet channel and is used to control the opening or closing of the first air inlet channel. The second control component is installed on the first air outlet channel and is used to control the opening or closing of the first air outlet channel. When performing a barrier test on a non-destructive sample container, the first body is installed on the second body and the sheet is not pressed against it. The non-destructive sample container is located in the enclosed space. The first control component controls the first air inlet channel to close, and the second control component controls the first air outlet channel to close.

10. The barrier property testing apparatus according to any one of claims 1 to 6, characterized in that, When a barrier property test is performed on a sample membrane, the sheet is the sample membrane, and the first body presses the sample membrane onto the second body accordingly.

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