Microbial barrier testing device for breathable packaging material

Abstract

The utility model relates to the technical field of breathable packaging material micro-testing, in particular to a breathable packaging material microbial barrier testing device which comprises a fixing chamber and a collecting chamber, a pressure detecting mechanism is arranged on the side face of the fixing chamber, a fixing cover is arranged at the upper end of the fixing chamber, a fixing cylinder is arranged at the upper end of the fixing cover, and the collecting chamber is arranged in the fixing cylinder. A storage connecting mechanism is arranged on the side face of the fixing cylinder, a material body is arranged in the storage connecting mechanism, a sealing cover is arranged on the other side of the storage connecting mechanism, and a collecting chamber is arranged at the lower end of the sealing cover. When the device is used, a material body is placed between the fixing chamber and the collecting chamber, then the concentration of microorganisms in the fixing chamber is controlled, then the air pressure in the fixing chamber and the air pressure in the fixing cylinder are increased, so that gas and microorganisms make contact with the material body, and then the concentration of the microorganisms in the collecting chamber is detected. Therefore, the biological barrier performance of the material body is detected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of gas permeable packaging material microtest technology, especially gas permeable packaging material microbial barrier test device. BACKGROUND

[0002] When the gas permeable packaging material is used, the gas permeable packaging material needs to be tested for microbial barrier, so as to judge the microbial passing performance of the gas permeable packaging material, but the general microbial barrier test device has some shortcomings when used, such as:

[0003] When the general microbial barrier test device is used, the microbial concentration at the gas permeable packaging material cannot be guaranteed, so that the concentration at the gas permeable packaging material is prone to not meeting the standard, thereby making the data of the microbial barrier test effect greatly different from the actual situation. UTILITY MODEL CONTENT

[0004] The utility model discloses a gas permeable packaging material microbial barrier test device to solve the problems raised in the background.

[0005] The gas permeable packaging material microbial barrier test device comprises a fixed chamber and a collection chamber: the side of the fixed chamber is provided with a pressure detection mechanism, the upper end of the fixed chamber is provided with a fixed cover, the upper end of the fixed cover is provided with a fixed cylinder, the side of the fixed cylinder is provided with a storage connecting mechanism, the inside of the storage connecting mechanism is provided with a material body, the other side of the storage connecting mechanism is provided with a closing cover, and the lower end of the closing cover is provided with the collection chamber.

[0006] Preferably, the pressure detection mechanism comprises a detection column, a fixed cap, a through hole, a fixed spring and a piston rod, the detection column is arranged on the side of the fixed chamber, the outer side of the end of the detection column away from the fixed chamber is threadedly connected with the fixed cap, the center of the fixed cap is provided with the through hole, and the inside of the detection column is provided with the fixed spring and the piston rod.

[0007] When the device is used, the microorganism concentration in the fixed chamber reaches the specified standard, and the air pressure in the fixed chamber is greater than that in the collection chamber, so that the gas in the fixed chamber flows into the inside of the collection chamber along the air;

[0008] The fixed spring gives the piston rod a certain pressure, so that the pressure of the piston rod and the fixed chamber is greater than the normal air pressure, so that the gas and the microorganism have the tendency to flow into the collection chamber;

[0009] By rotating the fixed cap, the fixed cap and the detection column can be separated, so that the fixed spring and the piston rod in the inside of the detection column are taken out, so that the detection column is connected with the outside air supply mechanism, so as to increase the flow of the microorganism in the fixed chamber to the collection chamber, and increase the detection speed.

[0010] Preferably, the lower end of the fixed cover is provided with a fixed frame, and the inner part of the fixed frame is respectively provided with a motor and a fan.

[0011] The fixed frame is located directly below the fixed cover, and when the motor drives the fan to rotate, the air pressure in the fixed cylinder is increased, thereby increasing the microbial concentration at the fixed cylinder and increasing the testing speed.

[0012] Preferably, the side of the fixed chamber is provided with a first detection port, and the upper end of the fixed cover is provided with a third detection port.

[0013] When the device is in use, the microbial concentration in the fixed chamber can be detected through the first detection port, and the microbial concentration at the fixed cylinder can be detected through the third detection port.

[0014] Preferably, the storage connecting mechanism comprises a connecting sleeve and a connecting cylinder, the outer side of the fixed cylinder is slidably connected with the connecting sleeve, the other side of the connecting sleeve is connected with the connecting cylinder, and the other end of the connecting cylinder is connected with a closing cover.

[0015] When the device is in use, the connecting sleeve and the connecting cylinder are fixed by bolts, and the connecting sleeve and the connecting cylinder store a material body therebetween, and when the gas in the connecting sleeve and the connecting cylinder flows, the material body needs to be passed through, thereby increasing the microbial concentration at the material body and detecting the biological barrier performance of the material body.

[0016] Preferably, the upper end of the closing cover is provided with a second detection port, and the side of the collection chamber is provided with a control valve.

[0017] The control valve is always open, and the microbial concentration in the collection chamber can be monitored through the second detection port, so as to judge whether the microorganisms enter the inside of the collection chamber.

[0018] The beneficial effects of the utility model are:

[0019] 1. When the device is in use, the material body is placed between the fixed chamber and the collection chamber, then the microbial concentration in the fixed chamber is controlled, and then the air pressure in the fixed chamber and the fixed cylinder is increased, so that the gas and the microorganisms contact with the material body, and then the microbial concentration in the collection chamber is detected, thereby detecting the biological barrier performance of the material body. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0021] Figure 1This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall front sectional structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the connecting sleeve of this utility model;

[0024] Figure 4 This is a top view of the fixed interior structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the collection chamber of this utility model;

[0026] Figure 6 This is a schematic diagram showing the direction of indoor gas flow.

[0027] In the diagram: 1. Fixed chamber; 2. Detection column; 3. Fixed cap; 4. Through hole; 5. Fixed spring; 6. Piston rod; 7. Fixed frame; 8. Motor; 9. Fan; 10. First detection port; 11. Fixed cover; 12. Fixed cylinder; 13. Connecting sleeve; 14. Material body; 15. Connecting cylinder; 16. Sealing cover; 17. Collection chamber; 18. Second detection port; 19. Control valve; 20. Third detection port. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In practical implementation: such as Figures 1-6 As shown, the microbial barrier testing device for breathable packaging materials includes a fixed chamber 1 and a collection chamber 17. A pressure detection mechanism is provided on the side of the fixed chamber 1, a fixed cover 11 is provided at the upper end of the fixed chamber 1, a fixed cylinder 12 is provided at the upper end of the fixed cover 11, a storage connection mechanism is provided on the side of the fixed cylinder 12, a material body 14 is provided inside the storage connection mechanism, a sealing cover 16 is provided on the other side of the storage connection mechanism, and a collection chamber 17 is provided at the lower end of the sealing cover 16.

[0030] The pressure testing mechanism includes a testing column 2, a fixing cap 3, a through hole 4, a fixing spring 5, and a piston rod 6. The testing column 2 is located on the side of the fixing chamber 1. The fixing cap 3 is threaded to the outer side of the end of the testing column 2 away from the fixing chamber 1. A through hole 4 is opened at the center of the fixing cap 3. The fixing spring 5 and the piston rod 6 are installed inside the testing column 2.

[0031] When the device is in use, the microorganism concentration in the fixed chamber 1 reaches the specified standard, and the air pressure in the fixed chamber 1 is greater than the air pressure in the collection chamber 17, so that the gas in the fixed chamber 1 flows into the inside of the collection chamber 17 along with the air;

[0032] The fixed spring 5 gives the piston rod 6 a certain pressure, so that the pressure of the piston rod 6 and the fixed chamber 1 is greater than the normal air pressure, so that the gas and the microorganism have a tendency to flow into the collection chamber 17;

[0033] By rotating the fixed cap 3, the fixed cap 3 and the detection column 2 can be separated, so that the fixed spring 5 and the piston rod 6 inside the detection column 2 are taken out, so that the detection column 2 is connected with the external air supply mechanism, so that the microorganism in the fixed chamber 1 flows to the collection chamber 17, and the detection speed is increased.

[0034] The lower end of the fixed cover 11 is provided with a fixed frame 7, and the inner part of the fixed frame 7 is respectively provided with a motor 8 and a fan 9.

[0035] The fixed frame 7 is located directly below the fixed cover 11, and when the motor 8 drives the fan 9 to rotate, the air pressure in the fixed cylinder 12 is increased, so that the microorganism concentration at the fixed cylinder 12 is increased, and the detection speed is increased.

[0036] The side of the fixed chamber 1 is provided with a first detection port 10, and the upper end of the fixed cover 11 is provided with a third detection port 20.

[0037] When the device is in use, the microorganism concentration in the fixed chamber 1 can be detected through the first detection port 10, and the microorganism concentration at the fixed cylinder 12 can be detected through the third detection port 20.

[0038] The storage connecting mechanism comprises a connecting sleeve 13 and a connecting cylinder 15, and the outer side of the fixed cylinder 12 is slidably connected with the connecting sleeve 13. The other side of the connecting sleeve 13 is connected with the connecting cylinder 15, and the other end of the connecting cylinder 15 is connected with a closing cover 16.

[0039] When the device is in use, the connecting sleeve 13 and the connecting cylinder 15 are fixed by bolts, and the connecting sleeve 13 and the connecting cylinder 15 store a material body 14 therebetween. When the gas in the connecting sleeve 13 and the connecting cylinder 15 flows, it needs to pass through the material body 14, so as to increase the microorganism concentration at the material body 14, so as to detect the biological barrier performance of the material body 14, and the material body 14 is a sterile medical instrument package.

[0040] The upper end of the closing cover 16 is provided with a second detection port 18, and the side of the collection chamber 17 is provided with a control valve 19.

[0041] The control valve 19 is always open, and the microorganism concentration in the collection chamber 17 can be monitored through the second detection port 18, so as to determine whether the microorganism enters the inside of the collection chamber 17.

[0042] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0043] Finally, it should be noted that the above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for testing the microbial barrier of a gas-permeable packaging material, characterized in that The utility model provides a fixed chamber (1) and collection chamber (17) are included, the side of fixed chamber (1) is provided with pressure detection mechanism, the upper end of fixed chamber (1) is provided with fixed lid (11), the upper end of fixed lid (11) is provided with fixed cylinder (12), the side of fixed cylinder (12) is provided with storage connecting mechanism, the inside of storage connecting mechanism is provided with material body (14), the other side of storage connecting mechanism is provided with closed lid (16), the lower end of closed lid (16) is provided with collection chamber (17).

2. The gas permeable packaging material microbial barrier test device according to claim 1, characterized in that: The pressure detection mechanism includes a detection column (2), a fixed cap (3), a through hole (4), a fixed spring (5), and a piston rod (6), the detection column (2) is arranged on the side of the fixed chamber (1), the end of the detection column (2) away from the fixed chamber (1) is threadedly connected with the fixed cap (3) outside, the center of the fixed cap (3) is provided with the through hole (4), and the inside of the detection column (2) is provided with the fixed spring (5) and the piston rod (6).

3. The gas permeable packaging material microbial barrier test device according to claim 2, characterized in that: The lower end of the fixed lid (11) is provided with a fixed frame (7), and the inside of the fixed frame (7) is respectively provided with a motor (8) and a fan (9).

4. The gas permeable packaging material microbial barrier test device of claim 1, wherein: The side of the fixed chamber (1) is provided with a first detection port (10), and the upper end of the fixed lid (11) is provided with a third detection port (20).

5. The gas permeable packaging material microbial barrier test device of claim 1, wherein: The storage connecting mechanism includes a connecting sleeve (13) and a connecting cylinder (15), the outer side of the fixed cylinder (12) is slidably connected with the connecting sleeve (13), the other side of the connecting sleeve (13) is connected with the connecting cylinder (15), and the other end of the connecting cylinder (15) is connected with the closed lid (16).

6. The gas permeable packaging material microbial barrier test device of claim 1, wherein: The upper end of the closed lid (16) is provided with a second detection port (18), and the side of the collection chamber (17) is provided with a control valve (19).

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