Device for detecting barrier property of medical polymer packaging material

Abstract

The utility model discloses a medical polymer packaging material barrier property detection device, which comprises a box body, a plurality of test mechanisms are arranged in the box body, and the plurality of test mechanisms comprise: a lower test seat fixedly arranged on the inner wall of the bottom of the box body; the placing seat is fixedly arranged in the middle of the top of the lower testing seat and is used for placing a to-be-tested material; the hydraulic rod is fixedly arranged on the inner wall of the top of the box body; the upper test seat is fixedly arranged at the bottom of the hydraulic rod; the sealing assembly is arranged on the lower testing seat and the upper testing seat, the upper testing seat is driven by a hydraulic rod to press downwards, so that a first sealing ring and a second sealing ring which are arranged in a staggered mode are extruded together, and a testing cavity formed by the upper testing seat and the lower testing seat is sealed through elastic force of the first sealing ring and the second sealing ring; the temperature and the humidity in the box body are controlled through a temperature controller and an atomizing nozzle, so that the test is more stable.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of barrier property detection, in particular to a medical polymer packaging material barrier property detection device. BACKGROUND

[0002] The gas permeability tester is a kind of instrument specially used for determining the gas permeability of materials under certain conditions, which is widely used in packaging materials, medical devices, food preservation, automotive interiors and other fields to evaluate the barrier property of materials to gas. Medical polymer packaging materials need to use gas permeability tester to test the barrier property to gas, so as to verify whether the material meets the standard.

[0003] However, in the process of implementing the related technical solutions, at least the following technical problems are found: the gas permeability tester generally uses a hinged way to rotate the upper test seat on the lower test seat, and when hinged, there is a situation that the upper and lower test seats cannot completely fit, so that the gas overflows from the gap, affecting the effect of gas permeability test. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a medical polymer packaging material barrier property detection device, which solves the problem of poor gas tightness of the test cavity in the prior art and realizes the sealing effect between the upper and lower test seats.

[0005] The present application provides a medical polymer packaging material barrier property detection device, which includes a box body, the inside of the box body is provided with a plurality of test mechanisms, the plurality of test mechanisms include: a lower test seat fixedly arranged on the inner wall of the bottom of the box body; a placing seat fixedly arranged on the middle part of the top of the lower test seat, and the placing seat is used for placing the material to be tested; a hydraulic rod fixedly arranged on the inner wall of the top of the box body; an upper test seat fixedly arranged on the bottom of the hydraulic rod; and a sealing assembly arranged on the lower test seat and the upper test seat.

[0006] Further, the sealing assembly includes: two first sealing rings fixedly arranged on the top of the lower test seat, both of the two first sealing rings are annularly arranged on the outer side of the placing seat; and two second sealing rings fixedly arranged on the bottom of the upper test seat, both of the two upper test seats are concentrically annularly arranged on the bottom of the upper test seat, and both of the two second sealing rings are staggered with both of the two first sealing rings.

[0007] Further, an outer frame is fixedly arranged on the outer side of the top of the lower test seat, and the outer frame is arranged on the outer side of both of the first sealing rings.

[0008] Further, a high-pressure gas pipe is fixedly arranged on one side of the top of the upper test seat, and one end of the high-pressure gas pipe is in communication with a gas source.

[0009] Further, the inner wall of the box body is fixedly provided with an atomizing nozzle, the back of the box body is provided with a temperature regulator, and the outer side of the box body is fixedly provided with a display controller, which is electrically connected with the atomizing nozzle and the temperature regulator.

[0010] Further, the front of the box body is provided with a box door, and the front of the box door is provided with an observation window.

[0011] The technical scheme provided in the application has at least the following technical effects or advantages:

[0012] The lower pressing of the upper test seat by the hydraulic rod causes the two pairs of staggered first and second sealing rings to be pressed together, and the elasticity of the first and second sealing rings seals the test cavity formed by the upper and lower test seats, preventing the test cavity from having gaps that affect the accuracy of the test. The temperature and humidity inside the box body are controlled by the temperature controller and the atomizing nozzle, making the test more stable. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the detection device in the embodiment of the application.

[0014] Figure 2 It is a schematic diagram of the planar structure of the detection device in the embodiment of the application.

[0015] Figure 3 It is a schematic diagram of the structure of the test mechanism in the embodiment of the application.

[0016] Figure 4 It is a schematic diagram of the structure of the upper test seat in the embodiment of the application.

[0017] In the figure: 10, box body; 20, box door; 30, observation window; 40, test mechanism; 50, atomizing nozzle; 60, temperature regulator; 70, display controller; 41, lower test seat; 42, placement seat; 43, hydraulic rod; 44, upper test seat; 45, sealing assembly; 46, high-pressure gas pipe; 451, first sealing ring; 452, second sealing ring; 453, outer frame. DETAILED DESCRIPTION

[0018] The medical polymer packaging material barrier property detection device disclosed in the embodiment of the application drives the upper test seat 44 to be pressed down to the top of the lower test seat 41 through the extension and retraction of the hydraulic rod 43, and the two second sealing rings 452 on the upper test seat 44 are pressed down between the two first sealing rings 451 on the lower test seat 41, so that the staggered first and second sealing rings 451 and 452 are pressed together, and the position of the placement seat 42 in the middle of the lower test seat 41 is sealed, preventing the test cavity from having gaps that affect the accuracy of the test.

[0019] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings and specific embodiments of the specification.

[0020] Please refer to Figure 1 and Figure 2 The embodiment provides a kind of medical polymer packaging material barrier property detection device, including box body 10, the front of box body 10 is provided with box door 20, the front of box door 20 is provided with observation window 30 box body 10 The inside is provided with multiple test mechanisms 40, the inner wall of box body 10 is fixedly provided with atomizing nozzle 50, the inside of box body 10 is provided with thermometer, the back of box body 10 is provided with temperature regulator 60, the inside of box body 10 is provided with hygrometer, the outside of box body 10 is fixedly provided with display controller 70, display controller 70 is electrically connected with atomizing nozzle 50, hygrometer, temperature regulator 60 and thermometer, the test inside box body 10 can be observed through observation window 30 on the front of box door 20, also can be sealed inside box body 10, so that the temperature and humidity inside box body 10 are relatively stable, by atomizing nozzle 50 and temperature regulator 60 and the added moisture absorbent, cooperate with the measurement of thermometer and hygrometer, the temperature and humidity of test are accurately regulated, the interference of discharge temperature and humidity to test, so that test is more stable.

[0021] Please refer to Figures 1-4The plurality of test mechanisms 40 include a lower test seat 41, a placement seat 42, a hydraulic rod 43, an upper test seat 44, a sealing assembly 45, and a high-pressure air pipe 46. The lower test seat 41 is fixedly arranged on the inner wall of the bottom of the box body 10, and the bottom of the lower test seat 41 is provided with a vacuum pump. The placement seat 42 is fixedly arranged on the middle part of the top of the lower test seat 41, and is used for placing materials to be tested. The hydraulic rod 43 is fixedly arranged on the inner wall of the top of the box body 10. The upper test seat 44 is fixedly arranged on the bottom of the hydraulic rod 43. The sealing assembly 45 is arranged on the lower test seat 41 and the upper test seat 44. The high-pressure air pipe 46 is arranged on one side of the top of the upper test seat 44, and one end of the high-pressure air pipe 46 is in communication with the gas source. The sealing assembly 45 includes a first sealing ring 451, a second sealing ring 452, and an outer frame 453. Two first sealing rings 451 are fixedly arranged on the top of the lower test seat 41, and are annularly arranged on the outer side of the placement seat 42. Two second sealing rings 452 are fixedly arranged on the bottom of the upper test seat 44, and are concentrically annularly arranged on the bottom of the upper test seat 44. The two second sealing rings 452 are staggered with the two first sealing rings 451. The outer frame 453 is arranged on the outermost side of the lower test seat 41, and is in contact with the upper test seat 44. The upper test seat 44 is driven to be pressed down on the lower test seat 41 through the extension and retraction of the hydraulic rod 43. The first sealing ring 451 and the second sealing ring 452 arranged in a staggered manner are extruded together. The outer frame 453 assists in sealing on the outermost side, avoids the situation that the sealing members on the side of the upper test seat 44 and the lower test seat 41 cannot be aligned during hinging, improves the air tightness of the position of the placement seat 42, and forms a test cavity through the vacuum pump at the bottom of the lower test seat 41. The test cavity is vacuumized, and then the gas is introduced into the test cavity through the high-pressure air pipe 46. The pressure change and the gas flow are measured through the pressure gauge and the flow meter on the lower test seat 41 and the upper test seat 44, the gas permeability is calculated, and the test work is completed.

[0022] The functional principle of the present application can be described as follows:

[0023] In use, the material to be tested is placed on the seat 42, the hydraulic rod 43 is started, the extension of the hydraulic rod 43 drives the bottom test seat 44 to press down to the top of the lower test seat 41, the two second sealing rings 452 on the bottom of the upper test seat 44 are extruded into the two first sealing rings 451 staggered on the top of the lower test seat 41, the outer frame 453 on the top of the lower test seat 41 is in contact with the upper test seat 44, so that the test cavity formed by the lower test seat 41 and the upper test seat 44 is sealed, the door 20 is closed, the temperature and humidity displayed on the display controller 70 are observed, the atomizing nozzle 50 is started or the moisture absorbent is put in to make the humidity suitable, the temperature regulator 60 is started to adjust the temperature inside the box body 10 to a suitable value, the influence of temperature and humidity on the test is reduced, the vacuum pump is started to vacuum the test cavity, the gas source is used to pass the test gas into the test cavity from the high-pressure gas pipe 46, the pressure change and gas flow measured by the pressure gauge and flow meter on the lower test seat 41 and the upper test seat 44 can be used to calculate the gas permeability, and the test is completed.

[0024] Obviously, various modifications and changes can be made to the present application by those skilled in the art without departing from the spirit and scope of the present application. Thus, it is intended that the present application cover the modifications and changes as falling within the scope of the claims and their equivalents.

[0025] The above is only the preferred specific implementation of the embodiments of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A medical polymer packaging material barrier property detection device comprising a box body (10), characterized in that, The inside of the box body (10) is provided with a plurality of test mechanisms (40), and the plurality of test mechanisms (40) comprise: A lower test seat (41) fixedly arranged on the inner wall of the bottom of the box body (10); A placement seat (42) fixedly arranged on the middle of the top of the lower test seat (41), and the placement seat (42) is used for placing materials to be tested; A hydraulic rod (43) fixedly arranged on the inner wall of the top of the box body (10); An upper test seat (44) fixedly arranged on the bottom of the hydraulic rod (43); A sealing assembly (45) arranged on the lower test seat (41) and the upper test seat (44).

2. The device for measuring the barrier properties of a medical polymer packaging material according to claim 1, wherein The sealing assembly (45) comprises: Two first sealing rings (451) fixedly arranged on the top of the lower test seat (41), and the two first sealing rings (451) are annularly arranged outside the placement seat (42); Two second sealing rings (452) fixedly arranged on the bottom of the upper test seat (44), and the two second sealing rings (452) are concentrically annularly arranged on the bottom of the upper test seat (44), and the two second sealing rings (452) are staggered with the two first sealing rings (451).

3. The device for measuring the barrier properties of a medical polymer packaging material according to claim 2, wherein An outer frame (453) is fixedly arranged outside the top of the lower test seat (41), and the outer frame (453) is arranged outside the two first sealing rings (451).

4. The device for measuring the barrier properties of a medical polymer packaging material according to claim 1, wherein A high-pressure gas pipe (46) is fixedly arranged on one side of the top of the upper test seat (44), and one end of the high-pressure gas pipe (46) is in communication with a gas source.

5. The device for measuring the barrier properties of a medical polymer packaging material according to claim 1, wherein An atomizing nozzle (50) is fixedly arranged on the inner wall of the box body (10), a temperature regulator (60) is arranged on the back of the box body (10), a display controller (70) is fixedly arranged on the outside of the box body (10), and the display controller (70) is electrically connected with the atomizing nozzle (50) and the temperature regulator (60).

6. The device for measuring the barrier properties of a medical polymer packaging material according to claim 1, wherein A box door (20) is arranged on the front of the box body (10), and an observation window (30) is arranged on the front of the box door (20).

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