CN219957283U - Air filter aerosol interception tester - Google Patents
Air filter aerosol interception tester Download PDFInfo
- Publication number
- CN219957283U CN219957283U CN202321589734.9U CN202321589734U CN219957283U CN 219957283 U CN219957283 U CN 219957283U CN 202321589734 U CN202321589734 U CN 202321589734U CN 219957283 U CN219957283 U CN 219957283U
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- CN
- China
- Prior art keywords
- aerosol
- test
- air filter
- negative pressure
- assembly
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000443 aerosol Substances 0.000 title claims abstract description 69
- 238000012360 testing method Methods 0.000 claims abstract description 107
- 238000005070 sampling Methods 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 230000001580 bacterial effect Effects 0.000 claims description 23
- 241000894006 Bacteria Species 0.000 claims description 15
- 239000013641 positive control Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Abstract
The utility model provides an aerosol interception tester for an air filter, which comprises a machine table, wherein the machine table comprises a test table, an aerosol chamber arranged on one side of the test table and an operation table arranged at the upper end of the aerosol chamber, a cover cap is arranged at the outer end of the test table and is used for sealing a component for testing, and a sample testing assembly, a liquid sampling assembly and a terminal filter are arranged on the test table. The device is convenient for laying pipelines by carrying out integrated modularized distribution on the aerosol chamber, the sample testing component, the liquid sampling component, the terminal filter and the negative pressure component, so that all components are orderly connected; the test stand is fixedly clamped with the test tube by the test stand, and the sampler is fixed by the sampling stand, so that the test tube and the sampler can be conveniently assembled, disassembled and replaced, and the working efficiency of personnel is improved. The controller and the display screen can monitor the test data in real time, so that the automation of the test is realized.
Description
Technical Field
The utility model relates to the technical field of medical instrument testing equipment, in particular to an aerosol interception tester for an air filter.
Background
The air filter is needed to be used for medical infusion and blood transfusion apparatuses to intercept external bacteria, so that bacteria are prevented from polluting the infusion and blood transfusion apparatuses, the air filter is needed to be subjected to bacteria interception test before being used for detecting whether the air filter meets the general requirement of clinical needs, and the air filter is needed to be sequentially connected with paved test equipment through an air pipe during the traditional test, so that the operation is troublesome, and the test efficiency is low.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide an integrated modularized tester so as to improve the testing efficiency and solve the problems in the background art.
The technical problems solved by the utility model are realized by adopting the following technical scheme: the utility model provides an air filter aerosol interception tester, includes the board, the board includes test bench and installs the aerosol room in test bench one side, sets up the operation panel in aerosol room upper end, the outer end of test bench is equipped with the shroud for seal test with the part, be equipped with sample test subassembly, liquid sampling subassembly and terminal filter on the test bench, the lower extreme of test bench is equipped with the negative pressure subassembly that is connected with terminal filter, and the negative pressure subassembly produces suction, aerosol room, sample test subassembly, liquid sampling subassembly, terminal filter and negative pressure subassembly pass through the trachea connection in proper order and constitute sample test pipeline;
one side of the aerosol chamber is connected with an aerosol emitter so as to convert bacterial suspension with specific concentration into bacterial aerosol and spray the bacterial aerosol into the aerosol chamber;
the sample testing component comprises a testing frame and a testing cylinder which is clamped and installed on the testing frame, an air filter for testing is installed in the testing cylinder, and the air filter intercepts and filters bacterial aerosol;
the liquid sampling assembly comprises a sampling frame and samplers which are arranged on the sampling frame in a distributed mode, wherein the samplers are used for collecting bacteria penetrating through the air filter and evaluating the interception capability of the air filter to bacterial aerosol.
As a further scheme of the utility model: the test bench is also provided with a positive control pipeline, the positive control pipeline comprises a control test piece, and the positive control pipeline is formed by sequentially connecting an aerosol chamber, a sampler, a control test piece, a terminal filter and a negative pressure component, so as to detect the bacterial quantity output by the aerosol chamber.
As a further scheme of the utility model: the test rack is provided with a U-shaped clamping groove corresponding to the test barrel, the test barrel comprises a barrel body and a barrel cover arranged on one side of the barrel body, an annular convex body is arranged on one side of the barrel body away from the barrel cover, and the test barrel is plugged into the clamping groove and is clamped on two sides of the clamping groove through the convex body and the barrel cover so as to fix the test barrel; the air filter is arranged on one side of the cylinder cover and is internally arranged in the cylinder body, to intercept the bacterial aerosol in the cylinder, one side of the cylinder is connected with the aerosol chamber through an air pipe, and the other side is connected with the sampler through an air pipe.
As a further scheme of the utility model: the sampling rack comprises a rack seat and a rack plate arranged at the upper end of the rack seat, through holes are formed in the rack plate corresponding to the samplers in a distributed mode, positioning holes are formed in the rack seat corresponding to the samplers in a distributed mode, and the samplers are inserted and fixed in the through holes and the positioning holes; the sampler comprises a sampling tube and a tube joint arranged at the upper end of the sampling tube, the sampler uses liquid filled with collecting liquid to impact and collect introduced bacteria, and performs bacteria counting analysis on the collecting liquid so as to evaluate the aerosol bacteria interception capability of the tested air filter.
As a further scheme of the utility model: the negative pressure assembly comprises a negative pressure pump arranged at the lower end of the test bench and a flowmeter connected with the negative pressure pump, wherein the flowmeter is provided with a plurality of groups and is fixedly arranged on an assembly plate of the machine bench, and an adjusting valve for adjusting ventilation is arranged at the outer end of the flowmeter, which is positioned on the assembly plate.
As a further scheme of the utility model: the operation desk is internally provided with a controller, so as to be electrically connected with the aerosol chamber and the negative pressure component through the controller, and the outer end of the operation desk is provided with a display screen and an operation button which are electrically connected with the controller.
As a further scheme of the utility model: the shroud passes through the hinge and rotates to be installed on the testboard, and the front end and the upper end of shroud are equipped with the observation window respectively to the personnel monitor the state of testboard, and the front end of shroud is equipped with the handle.
Compared with the prior art, the utility model has the beneficial effects that: the device is convenient for laying pipelines by carrying out integrated modularized distribution on the aerosol chamber, the sample testing component, the liquid sampling component, the terminal filter and the negative pressure component, so that all components are orderly connected; the test stand is fixedly clamped with the test tube by the test stand, and the sampler is fixed by the sampling stand, so that the test tube and the sampler can be conveniently assembled, disassembled and replaced, and the working efficiency of personnel is improved. The controller and the display screen can monitor the test data in real time, so that the automation of the test is realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a test bench according to the present utility model;
FIG. 3 is a schematic view of a cartridge according to the present utility model;
the marks in the figure are as follows: 1. a machine table; 2. a test bench; 3. an aerosol chamber; 4. an operation table; 5. a terminal filter; 6. a test rack; 7. a sampling frame; 8. comparing the test pieces; 9. a regulating valve; 21. a cover cap; 22. an observation window; 23. a handle; 31. an aerosol emitter; 41. a display screen; 42. operating a button; 61. a test cartridge; 62. an air filter; 63. a clamping groove; 64. a cylinder; 65. a cylinder cover; 66. a convex body; 67. a thread sleeve; 71. a sampler; 72. a stand; 73. a frame plate.
Detailed Description
The utility model is further described with reference to the following detailed drawings in order to make the implementation, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in figures 1 to 3 of the drawings,
the embodiment provides an aerosol interception tester for an air filter, which comprises a machine table 1, wherein the machine table 1 comprises a test table 2, an aerosol chamber 3 arranged on one side of the test table 2 and an operation table 4 arranged at the upper end of the aerosol chamber 3, a cover cap 21 is arranged at the outer end of the test table 2 and is used for sealing a component for test, a sample test assembly, a liquid sampling assembly and a terminal filter 5 are arranged on the test table 2, a negative pressure assembly connected with the terminal filter 5 is arranged at the lower end of the test table 2, suction force is generated by the negative pressure assembly, and the aerosol chamber 3, the sample test assembly, the liquid sampling assembly, the terminal filter 5 and the negative pressure assembly are sequentially connected through air pipes to form a sample test pipeline;
an aerosol emitter 31 is connected to one side of the aerosol chamber 3 to convert a bacterial suspension of a specific concentration into a bacterial aerosol and spray the bacterial aerosol into the aerosol chamber 3;
the sample testing component comprises a testing frame 6 and a testing cylinder 61 which is clamped and installed on the testing frame 6, an air filter 62 for testing is installed in the testing cylinder 61, and the air filter 62 is used for intercepting and filtering bacterial aerosol;
the liquid sampling assembly comprises a sampling frame 7 and samplers 71 distributed on the sampling frame 7, wherein the samplers 71 are used for collecting bacteria penetrating through the air filter 62 and evaluating the interception capability of the air filter 62 to bacterial aerosol.
In this embodiment, the test bench 2 is further provided with a positive control pipeline, the positive control pipeline includes a control test piece 8, and the positive control pipeline is formed by sequentially connecting the aerosol chamber 3, the sampler 71, the control test piece 8, the terminal filter 5 and the negative pressure component, so as to detect the bacterial load output by the aerosol chamber 3.
In this embodiment, the test rack 6 is provided with a U-shaped clamping groove 63 corresponding to the test barrel 61, the test barrel 61 includes a barrel 64 and a barrel cover 65 mounted on one side of the barrel 64, one side of the barrel 64 far away from the barrel cover 65 is provided with an annular convex body 66, the test barrel 61 is plugged into the clamping groove 63, and both sides of the clamping groove 63 are clamped by the convex body 66 and the barrel cover 65 to fix the test barrel 61; the cylinder cover 65 is provided with a thread sleeve 67 on one side, the thread sleeve 67 is inserted into the cylinder 64 for internal thread connection, the air filter 62 is arranged on one side of the cylinder cover 65 and is arranged in the cylinder 64 to intercept bacterial aerosol in the cylinder 64, one side of the cylinder 64 is connected with the aerosol chamber 3 through an air pipe, and the other side is connected with the sampler 71 through an air pipe.
In this embodiment, the sampling rack 7 includes a rack base 72 and a rack plate 73 mounted at the upper end of the rack base 72, through holes are distributed on the rack plate 73 corresponding to the samplers 71, positioning holes are distributed on the rack base 72 corresponding to the samplers 71, and the samplers 71 are inserted and fixed in the through holes and the positioning holes; the sampler 71 comprises a sampling tube and a tube joint arranged at the upper end of the sampling tube, the sampler 71 uses liquid filled with collecting liquid to impact and collect introduced bacteria, and performs bacteria counting analysis on the collecting liquid so as to evaluate the aerosol bacteria interception capability of the tested air filter 62.
In this embodiment, the negative pressure subassembly includes the negative pressure pump of installing in test bench 2 lower extreme and the flowmeter of being connected with the negative pressure pump, the flowmeter is equipped with a plurality of groups and fixed mounting on the assembly plate of board 1, and the flowmeter is located the outer end of assembly plate and is equipped with the governing valve 9 that is used for adjusting the ventilation volume.
In this embodiment, a controller is disposed in the console 4, so as to be electrically connected with the aerosol chamber 3 and the negative pressure component through the controller, and a display screen 41 and an operation button 42 electrically connected with the controller are disposed at the outer end of the console 4.
In this embodiment, the cover 21 is rotatably mounted on the test bench 2 through a hinge, the front end and the upper end of the cover 21 are respectively provided with an observation window 22, so that personnel can monitor the state of the test bench 2, and the front end of the cover 21 is provided with a handle 23.
The working principle of the utility model is as follows: the air filter 62 to be detected is installed in the test cartridge 61, and the test cartridge 61 is fixedly installed on the test rack 6, one side of the test cartridge 61 is communicated with the aerosol chamber 3 through an air pipe, and the other side is communicated with the sampler 71 through an air pipe, so that the gas penetrating the air filter 62 is collected by the collection liquid, and the collection liquid is subjected to bacterial count analysis, thereby evaluating the aerosol bacterial retention capacity of the air filter 62 to be tested.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof. It is noted that relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (7)
1. The utility model provides an air cleaner aerosol interception tester, includes the board, the board includes the testboard and installs the aerosol room in testboard one side, sets up the operation panel in aerosol room upper end, its characterized in that: the outer end of the test bench is provided with a cover cap for sealing the test part, the test bench is provided with a sample test assembly, a liquid sampling assembly and a terminal filter, the lower end of the test bench is provided with a negative pressure assembly connected with the terminal filter, the negative pressure assembly generates suction force, and the aerosol chamber, the sample test assembly, the liquid sampling assembly, the terminal filter and the negative pressure assembly are sequentially connected through an air pipe to form a sample test pipeline;
one side of the aerosol chamber is connected with an aerosol emitter so as to convert bacterial suspension with specific concentration into bacterial aerosol and spray the bacterial aerosol into the aerosol chamber;
the sample testing component comprises a testing frame and a testing cylinder which is clamped and installed on the testing frame, an air filter for testing is installed in the testing cylinder, and the air filter intercepts and filters bacterial aerosol;
the liquid sampling assembly comprises a sampling frame and samplers which are arranged on the sampling frame in a distributed mode, wherein the samplers are used for collecting bacteria penetrating through the air filter and evaluating the interception capability of the air filter to bacterial aerosol.
2. An air filter aerosol entrapment tester as set forth in claim 1 wherein: the test bench is also provided with a positive control pipeline, the positive control pipeline comprises a control test piece, and the positive control pipeline is formed by sequentially connecting an aerosol chamber, a sampler, a control test piece, a terminal filter and a negative pressure component, so as to detect the bacterial quantity output by the aerosol chamber.
3. An air filter aerosol entrapment tester as set forth in claim 1 wherein: the test rack is provided with a U-shaped clamping groove corresponding to the test barrel, the test barrel comprises a barrel body and a barrel cover arranged on one side of the barrel body, an annular convex body is arranged on one side of the barrel body away from the barrel cover, and the test barrel is plugged into the clamping groove and is clamped on two sides of the clamping groove through the convex body and the barrel cover so as to fix the test barrel; the air filter is arranged on one side of the cylinder cover and is internally arranged in the cylinder body, to intercept the bacterial aerosol in the cylinder, one side of the cylinder is connected with the aerosol chamber through an air pipe, and the other side is connected with the sampler through an air pipe.
4. An air filter aerosol entrapment tester as claimed in claim 3, wherein: the sampling rack comprises a rack seat and a rack plate arranged at the upper end of the rack seat, through holes are formed in the rack plate corresponding to the samplers in a distributed mode, positioning holes are formed in the rack seat corresponding to the samplers in a distributed mode, and the samplers are inserted and fixed in the through holes and the positioning holes; the sampler comprises a sampling tube and a tube joint arranged at the upper end of the sampling tube, the sampler uses liquid filled with collecting liquid to impact and collect introduced bacteria, and performs bacteria counting analysis on the collecting liquid so as to evaluate the aerosol bacteria interception capability of the tested air filter.
5. An air filter aerosol entrapment tester as set forth in claim 4 wherein: the negative pressure assembly comprises a negative pressure pump arranged at the lower end of the test bench and a flowmeter connected with the negative pressure pump, wherein the flowmeter is provided with a plurality of groups and is fixedly arranged on an assembly plate of the machine bench, and an adjusting valve for adjusting ventilation is arranged at the outer end of the flowmeter, which is positioned on the assembly plate.
6. An air filter aerosol entrapment tester as set forth in claim 1 wherein: the operation desk is internally provided with a controller, so as to be electrically connected with the aerosol chamber and the negative pressure component through the controller, and the outer end of the operation desk is provided with a display screen and an operation button which are electrically connected with the controller.
7. An air filter aerosol entrapment tester as set forth in claim 6 wherein: the shroud passes through the hinge and rotates to be installed on the testboard, and the front end and the upper end of shroud are equipped with the observation window respectively to the personnel monitor the state of testboard, and the front end of shroud is equipped with the handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321589734.9U CN219957283U (en) | 2023-06-20 | 2023-06-20 | Air filter aerosol interception tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321589734.9U CN219957283U (en) | 2023-06-20 | 2023-06-20 | Air filter aerosol interception tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219957283U true CN219957283U (en) | 2023-11-03 |
Family
ID=88554629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321589734.9U Active CN219957283U (en) | 2023-06-20 | 2023-06-20 | Air filter aerosol interception tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219957283U (en) |
-
2023
- 2023-06-20 CN CN202321589734.9U patent/CN219957283U/en active Active
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| GR01 | Patent grant |