CN113350919B - Air filtering device for in-vitro diagnosis and detection equipment - Google Patents
Air filtering device for in-vitro diagnosis and detection equipment Download PDFInfo
- Publication number
- CN113350919B CN113350919B CN202110782650.6A CN202110782650A CN113350919B CN 113350919 B CN113350919 B CN 113350919B CN 202110782650 A CN202110782650 A CN 202110782650A CN 113350919 B CN113350919 B CN 113350919B
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- Prior art keywords
- filter element
- sensor
- shell
- place
- filtering device
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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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- 238000000338 in vitro Methods 0.000 title claims abstract description 19
- 238000001914 filtration Methods 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 title abstract description 15
- 238000003745 diagnosis Methods 0.000 title abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000002405 diagnostic procedure Methods 0.000 claims 7
- 238000009434 installation Methods 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 206010036790 Productive cough Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 230000001079 digestive effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 210000003802 sputum Anatomy 0.000 description 1
- 208000024794 sputum Diseases 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an air filtering device for in-vitro diagnosis and detection equipment, which comprises: the shell is provided with an upper cavity and a lower cavity, the side surface of the upper cavity is provided with an air outlet, and the bottom of the lower cavity is provided with an air inlet; the filter element is arranged in the lower cavity, the bottom inlet of the filter element corresponds to the air inlet, and the periphery of the top outlet of the filter element is provided with a sealing gasket for separating the upper cavity from the lower cavity; the centrifugal fan is arranged in the upper cavity; the control unit comprises a processor, a fan control module, an in-place sensor and a clamping sensor, wherein the fan control module is used for controlling the start and stop of the centrifugal fan, the in-place sensor is used for detecting in-place signals of the filter element, the clamping sensor is used for detecting in-place signals of the sealing gasket, and the processor is used for receiving the signals of the in-place sensor and the clamping sensor and sending a control instruction to the fan control module. The invention has simple structure and convenient installation, can meet the requirement of air filtration in the instrument and improve the detection accuracy and the operation safety.
Description
Technical Field
The invention relates to the technical field of air treatment of in-vitro diagnostic equipment, in particular to an air filtering device for in-vitro diagnostic detection equipment.
Background
The in-vitro detection diagnosis and detection equipment is an instrument capable of carrying out qualitative or quantitative analysis on body fluid samples (sputum, blood and urine) of patients, and generally comprises a culture dish loading module, a sample cup loading module, a sample preprocessing module, a sample adding module, a liquid path module, a computer control module and the like, wherein most samples are subjected to operations such as digestive juice filling, weighing, uniform mixing and the like through the preprocessing module and then are subjected to strain culture in sequence. In practical use, the aerosol evaporation can occur in the processes of opening and closing the cover and adding the sample, and when the aerosol is mixed in the air in the instrument, the possibility of mixing the sample on the culture dish can be increased, so that the sample cross contamination is caused, the detection result is inaccurate, and further, the harm in health can be caused to the operation and the use personnel of the instrument.
Disclosure of Invention
In order to solve the problems, the invention provides an air filtering device for in-vitro diagnosis and detection equipment, which concretely adopts the following technical scheme:
the air filtering device for the in-vitro diagnosis and detection equipment comprises
The shell is provided with an upper cavity and a lower cavity, an air outlet is arranged on the side face of the upper cavity, and an air inlet is arranged at the bottom of the lower cavity;
The filter element is arranged in the lower cavity, the bottom inlet of the filter element corresponds to the air inlet, and the periphery of the top outlet of the filter element is provided with a sealing gasket for separating the upper cavity from the lower cavity;
The centrifugal fan is arranged in the upper cavity;
The control unit comprises a processor, a fan control module, an in-place sensor and a clamping sensor, wherein the fan control module is used for controlling the start and stop of the centrifugal fan, the in-place sensor is used for detecting in-place signals of the filter element, the clamping sensor is used for detecting in-place signals of the sealing gasket, and the processor is used for receiving the signals of the in-place sensor and the clamping sensor and sending control instructions to the fan control module.
The lower cavity is internally provided with a supporting plate for placing the filter element, the rear part of the supporting plate is hinged with the shell, and the front part of the supporting plate is provided with a locking piece connected with the shell.
Lugs are arranged on two sides of the front part of the supporting plate and are inserted into long holes formed in the shell, and clamping sensors are arranged at the tops of the long holes.
The middle part of layer board is provided with the recess with filter core looks adaptation, and the sensor sets up in place the recess week side.
The locking piece is a pull buckle and comprises a buckle fixing piece arranged on the shell and a rotary buckling piece arranged on the supporting plate.
The front part of the shell is provided with a horizontal mounting opening opposite to the filter element.
An upper limiting plate matched with the sealing gasket is arranged on the inner ring of the shell.
And a mounting rack matched with the centrifugal fan is arranged in the upper cavity.
And a protective grille is arranged at the air outlet.
The filter element is a HEPA filter element.
The air filtering device for the in-vitro diagnosis and detection equipment provided by the invention has the advantages that the structure is simple, the installation is convenient, the filter element can be quickly replaced, and the installation tightness of the filter element can be ensured, so that the impurity-containing air is discharged out of the in-vitro diagnosis and detection equipment after being filtered by the filter element, the requirement of the air filtration in an instrument is met, the adverse phenomena such as cross infection of samples are avoided, and the detection accuracy and the operation safety are improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a sectional view (operating state) of fig. 1.
Fig. 3 is a cross-sectional view of fig. 1 (pallet rotated down state).
Fig. 4 is a schematic view showing a state of replacing a filter cartridge according to the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings, and the embodiments and specific working procedures of the present invention are given by implementing the present embodiment on the premise of the technical solution of the present invention, but the protection scope of the present invention is not limited to the following embodiments.
As shown in fig. 1 to 4, the air filtering device for in-vitro diagnosis and detection equipment of the invention comprises a shell 1, wherein the shell is provided with an upper cavity and a lower cavity which are mutually communicated, the upper cavity is of a second-order square structure which is overlapped up and down, a step part is provided with a mounting frame 2 for mounting a centrifugal fan 3, one side of the centrifugal fan 3 is provided with an air outlet 4 connected with the shell 1, and the tail end of the air outlet 4 extends to the outside of the equipment and is provided with a protection grid; the lower cavity is of a square structure with the size larger than that of the upper cavity, the bottom and the front part of the lower cavity are open, the bottom forms an air inlet, and the front part forms a horizontal mounting port which is convenient for replacing the filter element 5; wherein, the closed-loop horizontal plane at the connection part of the upper cavity and the lower cavity forms an upper limit plate matched with the sealing gasket 6. The filter element 5 adopts a HEPA filter element with the filtering precision reaching 0.1 mu m, the HEPA filter element is installed in the lower cavity through the supporting plate 7, the sealing gasket 6 made of compressed cotton is installed on the periphery of the top, and when the filter element 5 is installed in place and locked, the sealing gasket 6 is in sealing contact with the upper limiting plate and can separate the upper cavity from the lower cavity, so that impurity-containing gas in the in-vitro diagnosis and detection equipment is filtered by the filter element 5 and then enters the upper cavity.
Specifically, the middle part of the supporting plate 7 is provided with a groove matched with the filter element 5, and the periphery of the groove is provided with an in-place sensor 8 (ohm dragon SS-10GL 2) for detecting whether the filter element 5 is correctly arranged in the groove. The rear part of the supporting plate 7 is hinged with the shell 1, lugs 701 are arranged on two sides of the front part, the lugs 701 are inserted into inclined long holes 702 positioned on the side wall of the shell 1, so that the supporting plate 7 can rotate up and down around a rear hinged shaft, and meanwhile, the bottom of the inclined long holes 702 is limited to prevent the filter element 5 from sliding down due to excessive falling. The front part of the supporting plate 7 is provided with a pull buckle 9 connected with the shell 1 as a locking piece, and the pull buckle 9 consists of a buckle fixing piece arranged on the shell 1 and a rotary buckling piece arranged on the supporting plate 7. The side of the shell 1 is provided with a clamping sensor 10 (ohm dragon SS-10GL 2) which is arranged close to the inclined long hole 702, a trigger switch 703 of the clamping sensor 10 is positioned at the top of the inclined long hole 702, after the filter element 5 is arranged in place, the position locking is carried out through a pull buckle 9, the sealing gasket 6 is in sealing contact with the upper limiting plate, at the moment, the lug 701 presses the trigger switch 703, and the clamping sensor 10 detects that the filter element sealing gasket is pressed in place. The in-place sensor 8 and the clamping sensor 10 are arranged, so that the problem of filtration failure caused by the fact that the filter element 5 is not in a normal close state due to misoperation of personnel can be fully avoided.
The in-place sensor 8, the clamping sensor 10, the fan control module, the processor, the fan control module and the like form a control unit, wherein the processor can adopt a singlechip or a PLC and the like, the fan control module is used for controlling the start and stop of the centrifugal fan 3, the in-place sensor 8 is used for detecting an in-place signal of the filter element 5, the clamping sensor 10 is used for detecting an in-place signal of the sealing gasket 6, and the processor is used for receiving signals of the in-place sensor 8 and the clamping sensor 10 and sending a control instruction to the fan control module. When the filter element 5 is correctly installed in place, and the sealing gasket 6 and the upper limiting plate form sealing contact, the processor can send an instruction to the fan control module to start the centrifugal fan 3, at the moment, negative pressure is formed in the shell 1, and impurity-containing air enters the filter element 5 from the bottom air inlet and is discharged out of the device from the air outlet 4 after being filtered.
It should be noted that, in the description of the present invention, terms such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Claims (7)
1. An air filter device for an in vitro diagnostic test device, which is characterized in that: comprising
The shell is provided with an upper cavity and a lower cavity, an air outlet is arranged on the side face of the upper cavity, and an air inlet is arranged at the bottom of the lower cavity;
The filter element is arranged in the lower cavity, the bottom inlet of the filter element corresponds to the air inlet, and the periphery of the top outlet of the filter element is provided with a sealing gasket for separating the upper cavity from the lower cavity;
The centrifugal fan is arranged in the upper cavity;
The control unit comprises a processor, a fan control module, an in-place sensor and a clamping sensor, wherein the fan control module is used for controlling the start and stop of the centrifugal fan, the in-place sensor is used for detecting an in-place signal of the filter element, the clamping sensor is used for detecting an in-place signal of the sealing gasket, and the processor is used for receiving signals of the in-place sensor and the clamping sensor and sending a control instruction to the fan control module;
the lower cavity is internally provided with a supporting plate for placing the filter element, the rear part of the supporting plate is hinged with the shell, and the front part of the supporting plate is provided with a locking piece connected with the shell;
lugs are arranged on two sides of the front part of the supporting plate, the lugs are inserted into long holes formed in the shell, and a clamping sensor is arranged at the top of each long hole;
and a mounting rack matched with the centrifugal fan is arranged in the upper cavity.
2. The air filtering device for an in vitro diagnostic test apparatus according to claim 1, wherein: the middle part of layer board is provided with the recess with filter core looks adaptation, and the sensor sets up in place the recess week side.
3. The air filtering device for an in vitro diagnostic test apparatus according to claim 1, wherein: the locking piece is a pull buckle and comprises a buckle fixing piece arranged on the shell and a rotary buckling piece arranged on the supporting plate.
4. The air filtering device for an in vitro diagnostic test apparatus according to claim 1, wherein: the front part of the shell is provided with a horizontal mounting opening opposite to the filter element.
5. The air filtering device for an in vitro diagnostic test apparatus according to claim 1, wherein: an upper limiting plate matched with the sealing gasket is arranged on the inner ring of the shell.
6. The air filtering device for an in vitro diagnostic test apparatus according to claim 1, wherein: and a protective grille is arranged at the air outlet.
7. The air filtering device for an in vitro diagnostic test apparatus according to claim 1, wherein: the filter element is a HEPA filter element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110782650.6A CN113350919B (en) | 2021-07-12 | 2021-07-12 | Air filtering device for in-vitro diagnosis and detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110782650.6A CN113350919B (en) | 2021-07-12 | 2021-07-12 | Air filtering device for in-vitro diagnosis and detection equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113350919A CN113350919A (en) | 2021-09-07 |
| CN113350919B true CN113350919B (en) | 2024-04-23 |
Family
ID=77539059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110782650.6A Active CN113350919B (en) | 2021-07-12 | 2021-07-12 | Air filtering device for in-vitro diagnosis and detection equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN113350919B (en) |
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| Publication number | Publication date |
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| CN113350919A (en) | 2021-09-07 |
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