CN202845025U - Biological safety cabinet with filter easy to assemble and disassemble - Google Patents
Biological safety cabinet with filter easy to assemble and disassemble Download PDFInfo
- Publication number
- CN202845025U CN202845025U CN201220526488.8U CN201220526488U CN202845025U CN 202845025 U CN202845025 U CN 202845025U CN 201220526488 U CN201220526488 U CN 201220526488U CN 202845025 U CN202845025 U CN 202845025U
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- filter
- fixed bar
- exhaust
- decline
- card article
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Abstract
The utility model relates to a biological safety cabinet with a filter easy to assemble and disassemble, belonging to the technical field of biological experiments. The safety cabinet comprises an upper air cover (2), a lower air cover (4), an air exhaust filter (1) and a descending filter (5), wherein the upper air cover (2) is fixedly connected with the lower air cover (4); the air exhaust filter (1) is compacted at an air exhaust port in the upper air cover (2) through n air exhaust filter fixing rods; the descending filter (5) is compacted in the lower air cover (4) through m descending filter fixing rods; and m and n are both an integer greater than or equal to 2. According to the biological safety cabinet provided by the utility model, the filter is very convenient to assemble and disassemble, and the work of the maintenance personnel is safe and reliable.
Description
Technical field
The utility model relates to the easy-to-dismount Biohazard Safety Equipment of a kind of filter, is specifically related to the easily Biohazard Safety Equipment of installation and removal of a kind of exhaust-air filter and decline filter, belongs to the Bioexperiment technical field.
Background technology
Biohazard Safety Equipment need to be protected staff, laboratory sample in the course of the work, and this just needs a complete air filtering system.Protection to the staff: Biohazard Safety Equipment work is divided into air and flows into and discharge, what air flowed into is to open the environmental laboratory air that window enters cabinet by glass door, what discharge is the air of Biohazard Safety Equipment inner loop, be discharged to again environmental laboratory or outdoor by exhaust-air filter after with the harmful substance filtering, what discharge is pure air, operating room's inner bag except front glass outdoors other face all by the negative pressure air channel around, flow out without air, form the protection to the staff; Protection to laboratory sample: the air that arrives operating room's table top in the inner bag operating room is the air of decline filter after with the harmful substance filtering of inner loop air; operating room's inner bag except front glass outdoors other face all by the negative pressure air channel around; the decline air that arrives operating room's table top by inner bag after fresh air inlet on the plate and the fresh air inlet of table top front, operating room directly enter the negative pressure air channel; open the air that window enters the inner bag operating room by glass door; fresh air inlet by table top front, operating room directly enters into the negative pressure air channel; the pure air of whole operating room table top operating area for descending forms using the protection of sample.
Filter plays a critical effect in the Biohazard Safety Equipment performance, and itself Main Function is exactly the harmful substance in the filtered air.Filter has certain service life because of himself factor, just must change filter behind the certain hour, to guarantee the use safety of Biohazard Safety Equipment.Because filter carries out filtering to airborne harmful substance in long-term use procedure, can there be many harmful substances in filter interior, comprise that also can there be many harmful substances in the fan housing that filter is installed, there is safety problem in the maintenance personal when carrying out filter replacement, how designing a process convenient, the Rational Change filter becomes critical problem.
After the principle of air filtering system is Biohazard Safety Equipment unlatching work, the blower fan entry into service, blower fan is blown into fan housing to the air in the cabinet and forms the malleation case, portion of air carries out being discharged to environmental work chamber or outdoor after the filtering to airborne harmful substance by exhaust-air filter, portion of air carries out dropping to operating room's table top after the filtering to airborne harmful substance by the decline filter, fan housing meanwhile, form the negative pressure air channel between inner bag and the cabinet, the air that drops to operating room's table top enters the negative pressure air channel by fresh air inlet and circulates, the air that exhaust hood is discharged need to be opened the environmental laboratory air that window flows into cabinet negative pressure air channel by glass door and compensate, and forms an air circulation system.
At present, there is following defective in the traditional biological safety cabinet in installation and removal: compress filter in the mode of installing the employing screw and add press box, install cumbersomely, the fan housing operating space is smaller, increase the difficulty of installment work, lowered operating efficiency; When filter being changed dismounting, need first to dismantle cabinet front shroud and fan housing front shroud, cabinet front shroud and fan housing front shroud hold-down screw are all many, and weight is all heavier, need two maintenance personals to cooperate just and can finish, relatively waste time and energy, and then the dismounting filter, adopted screw to add the mode that press box compresses because filter is installed, and the operating space is smaller again, put to good use not open so remove, not easy to operate, in the process of whole dismounting, the maintenance personal is exposed to the front of whole fan housing fully, exist a large amount of harmful substances in filter and the fan housing, greatly increased the possibility that the maintenance personal is endangered.
Summary of the invention
For overcoming the technical problem that exists in the prior art, goal of the invention of the present utility model provides the easy-to-dismount Biohazard Safety Equipment of a kind of filter, and its filter installation and removal are very convenient, make simultaneously the maintenance personal safe and reliable.
For realizing described goal of the invention, the utility model provides a kind of filter easy-to-dismount Biohazard Safety Equipment, it comprises fan housing 2, lower fan housing 4, exhaust-air filter 1 and decline filter 5, wherein, upper fan housing 2 is fixedly connected with lower fan housing 4, it is characterized in that, described exhaust-air filter 1 is pressed on exhaust outlet place in the upper fan housing 2 by n root exhaust-air filter fixed bar, described decline filter 5 is pressed in the lower fan housing 4 by m root decline filter fixed bar, and wherein m and n are and are greater than or equal to 2 integer.
Preferably, the exhaust-air filter fixed bar is identical with decline filter fixed rod structure, include: a fixed bar dwang 18, a fixed bar handle 20 and two fixed bar cams, wherein, fixed bar dwang 18 passes two off-centered positions of fixed bar cam, and fixed bar handle 20 and fixed bar dwang 18 are welded into L-type.
Preferably, m=3; Card article 16 be provided with 1 decline filter fixed bar between the Zuo Bi of lower fan housing (4) and right wall before evenly is provided with 3 arc grooves on the card article 16 before the decline filter fixed bar; Card article 9,26 and 27 after the rear wall of lower fan housing 4 is provided with 3 decline filter fixed bars is provided with 1 arc groove on the card article behind each decline filter fixed bar.
Preferably, decline filter 5 is pressed on lower fan housing 4 when interior by decline filter fixed bar, and 3 decline filter fixed bars 10,22 and 23 are stuck in the arc groove of card article (9,26 and 27) behind 3 decline filter fixed bars corresponding to 3 arc grooves of the front card article 16 of decline filter fixed bar and position.
Preferably, n=2; Being in the wind is provided with card article 14 before 1 exhaust-air filter fixed bar between cover 2 Zuo Bi and the right wall, evenly be provided with 2 arc grooves on the card article 14 before the exhaust-air filter fixed bar; Being in the wind is provided with card article 11 and 25 behind 2 exhaust-air filter fixed bars on cover 2 the rear wall, is provided with 1 arc groove behind each exhaust-air filter fixed bar on the card article.
Preferably, exhaust-air filter 1 is pressed on upper fan housing 2 when interior by the exhaust-air filter fixed bar, and 2 exhaust-air filter fixed bars 12 and 21 are stuck in the arc groove of card article 11 behind 2 exhaust-air filter fixed bars corresponding to 2 arc grooves of the front card article 14 of exhaust-air filter fixed bar and position and 25.
Owing to having adopted above technical characterictic, so that the utility model than prior art, has advantages of is as follows:
At first, the utility model has adopted filter fixed bar Rotate 180 degree to compress exhaust-air filter and decline filter, replace tradition and added the mode that press box compresses filter with screw, this compression mode is compared conventional screw and is added press box pressing square formula, easier for installation, can finish separately by an installation personnel, save time and laborsaving.
Secondly; exhaust-air filter and decline filter are in Renewal process; only need to open the exhaust-air filter protecgulum and decline filter protecgulum can operate; replace traditional needs and opened the mode of whole cabinet protecgulum and fan housing protecgulum; this unfolding mode has avoided whole fan housing to be exposed in face of the maintenance personal, has protected maintenance personal's life safety.Unload exhaust-air filter and decline filter, the filter that only filter fixed bar Rotate 180 degree can need to be come loose directly takes out filter, and the mode that has replaced conventional screw and press box compression needs knockout screw and press box, a maintenance personal can operate, and dismantles more convenient.
Description of drawings
Fig. 1 is the Biohazard Safety Equipment schematic front sectional view that the utility model provides;
Fig. 2 is the side cross-sectional schematic diagram of the Biohazard Safety Equipment that provides of the utility model;
Fig. 3 is the exhaust-air filter fixed bar mounting means schematic diagram that is used for installing exhaust-air filter that the utility model provides;
Fig. 4 is the decline filter fixed bar mounting means schematic diagram that is used for installing the decline filter that the utility model provides.
Among the figure: 1. exhaust-air filter; 2. go up fan housing; 3. blower fan; 4. descend fan housing; 5. decline filter; 6. inner bag operating room; 7. glass door; 8. negative pressure air channel; 9. card article behind the decline filter fixed bar; 10. decline filter fixed bar; 11. card article behind the exhaust-air filter fixed bar; 12. exhaust-air filter fixed bar; 13. exhaust-air filter protecgulum; 14. card article before the exhaust-air filter fixed bar; 15. cabinet protecgulum; 16. card article before the decline filter fixed bar; 17. decline filter protecgulum; 18. fixed bar dwang; 19. fixed bar cam; 20. fixed bar handle; 21. exhaust-air filter fixed bar; 22. decline filter fixed bar; 23. decline filter fixed bar; 24. wind deflector; 25. card article behind the exhaust-air filter fixed bar; 26. card article behind the decline filter fixed bar; 27. card article behind the decline filter fixed bar; 28. fixed bar cam.
The specific embodiment
Below in conjunction with accompanying drawing, describe operation principle of the present utility model in detail.Identical Reference numeral represents identical parts.
Fig. 1 is the Biohazard Safety Equipment schematic front sectional view that the utility model provides, as shown in Figure 1, the easy-to-dismount Biohazard Safety Equipment of described filter comprises casing, upper fan housing 2, lower fan housing 4, exhaust-air filter 1, decline filter 5, blower fan 3 and inner bag operating room 6, wherein, upper fan housing 2 is fixedly connected with lower fan housing 4, described exhaust-air filter 1 is pressed on exhaust outlet place in the upper fan housing 2 by 2 filter fixed bars 12 and 21, and described decline filter 5 is pressed in the lower fan housing 4 by 3 filter fixed bars 10,22 and 23.Blower fan 3 is arranged on the platform on lower fan housing 4 right sides, is provided with wind deflector 24 at the blowing mouth place of blower fan, and described wind deflector 24 is the miter angle installation with the blowing mouth of blower fan 3.Be in the wind and form negative pressure air channel 8 between cover 2, lower fan housing 4, inner bag operating room 6 and the shell.Be provided with glass door 7 in the front of inner bag operating room.
Fig. 2 is the side cross-sectional schematic diagram of the Biohazard Safety Equipment that provides of the utility model.As shown in Figure 2, the be in the wind position of the corresponding exhaust-air filter 1 in cover 2 front is provided with exhaust-air filter protecgulum 13, position at the corresponding decline filter 5 in the front of lower fan housing 4 is provided with decline filter protecgulum 17, is provided with cabinet protecgulum 15 between exhaust-air filter protecgulum 13 and the decline filter protecgulum 17.Being in the wind is provided with card article 14 before 1 exhaust-air filter fixed bar between cover 2 Zuo Bi and the right wall, evenly be provided with 2 arc grooves on the card article 14 before the exhaust-air filter fixed bar; Being in the wind is provided with behind the exhaust-air filter fixed bar card article 25 (not showing among Fig. 2) behind the card article 11 and exhaust-air filter fixed bar on cover 2 the rear wall, is provided with 1 arc groove behind each exhaust-air filter fixed bar on the card article.Described exhaust-air filter 1 is pressed on exhaust outlet place in the upper fan housing 2 by exhaust-air filter fixed bar 12 and exhaust-air filter fixed bar 18 (not showing among Fig. 2).When exhaust-air filter 1 was pressed in the upper fan housing by the exhaust-air filter fixed bar, 2 exhaust-air filter fixed bars were stuck in the arc groove of card article behind 2 exhaust-air filter fixed bars corresponding to 2 arc grooves of the front card article of exhaust-air filter fixed bar and position.
Fig. 3 is the filter fixed bar mounting means schematic diagram that is used for installing exhaust-air filter that the utility model provides.As shown in Figure 3, exhaust-air filter fixed bar 12 comprises: fixed bar dwang 18, fixed bar handle 20 and two fixed bar cams 19 and 28, wherein, fixed bar dwang 18 passes two fixed bar cams 19 and 28 off-centered positions, and fixed bar handle 20 and fixed bar dwang 18 are welded into L-type.Exhaust-air filter fixed bar 21 is identical with the structure of exhaust-air filter fixed bar 12.
During installation, the two ends of card article 14 before the exhaust-air filter fixed bar are welded on the left and right sides wall of upper fan housing 2, behind the exhaust-air filter fixed bar behind card article 11 and the exhaust-air filter fixed bar card article 25 be welded on the rear wall of fan housing 2,2 exhaust-air filter fixed bars 12 and 21 are shelved on respectively before the exhaust-air filter fixed bar behind the card article 14 and exhaust-air filter fixed bar on the card article 11 and 25, exhaust-air filter fixed bar dwang 18 is stuck in before the exhaust-air filter fixed bar in the arc groove of card article 11 behind the card article 14 and exhaust-air filter fixed bar and 25, because the fixed bar cam is eccentric cam, according to centre-of-gravity principle, 2 exhaust-air filter fixed bars 12 and 21 automatic rotations are to the position of eccentricity minimum, exhaust-air filter 1 is put in the upper fan housing 2, be shelved on above exhaust-air filter fixed bar 12 and 21, distance on the exhaust-air filter 1 between plane and upper fan housing 2 exhaust outlets equals the numerical value after fixed bar cam eccentricity maximum deducts minimum of a value, adjust the position all around of exhaust-air filter 1, pull fixed bar rotatable handle 180 degree, the eccentricity of fixed bar cam reaches maximum, compresses exhaust-air filter 1.
Fig. 4 is the filter fixed bar mounting means schematic diagram that is used for installing the decline filter that the utility model provides.As shown in Figure 4, the structure of described decline filter fixed bar 10,22 and 23 structure and exhaust-air filter fixed bar 12 is identical.
During installation; the two ends of card article 16 are welded on the left and right sides wall of lower fan housing 4 before the decline filter fixed bar; card article 9 behind the decline filter fixed bar; 22 and 23 are welded on the rear wall of lower fan housing 4; 3 decline filter fixed bars are put into lower fan housing 4; decline filter 5 is shelved on lower fan housing 4 base plane; 3 decline filter fixed bars are shelved in the above in the process that decline filter 5 advances all the time; note the filtering surface of protection filter; the filter fixed bar of avoiding descending causes damage to decline filter 5; after the back plane of decline filter 5 is shifted the back of lower fan housing 4 onto; adjust the position all around of decline filter 5; make the fixed bar cam rotate to respectively the eccentricity minimum of a value; the fixed bar dwang is stuck in before the fixed bar card article 9 behind the card article 16 and decline filter fixed bar; in 26 and 27 the arc groove; then pull fixed bar rotatable handle 180 degree; the eccentricity of fixed bar cam reaches maximum, compresses decline filter 5.
Owing to having adopted above technical characterictic, so that the utility model than prior art, has advantages of is as follows:
At first, the utility model has adopted exhaust-air filter fixed bar and decline filter fixed bar Rotate 180 degree to compress exhaust-air filter and decline filter, replace tradition and added the mode that press box compresses filter with screw, this compression mode is compared conventional screw and is added press box pressing square formula, easier for installation, can finish separately by an installation personnel, save time and laborsaving.
Secondly; exhaust-air filter and decline filter are in Renewal process; only need to open the exhaust-air filter protecgulum and decline filter protecgulum can operate; replace traditional needs and opened the mode of whole cabinet protecgulum and fan housing protecgulum; this unfolding mode has avoided whole fan housing to be exposed in face of the maintenance personal, has protected maintenance personal's life safety.Unload exhaust-air filter and decline filter, filter only need to can come loose exhaust-air filter fixed bar and decline filter fixed bar Rotate 180 degree, directly take out filter, the mode that has replaced conventional screw and press box compression needs knockout screw and press box, a maintenance personal can operate, and dismantles more convenient.
More than be described with reference to the accompanying drawings the utility model; but those of ordinary skill in the art is understood that; specification is for explaining claims; in scope disclosed in the utility model; all in protection domain of the present utility model, the desired protection domain of the utility model is as the criterion with claims for any modification of making or distortion.
Claims (6)
1. easy-to-dismount Biohazard Safety Equipment of filter, it comprises fan housing (2), lower fan housing (4), exhaust-air filter (1) and decline filter (5), wherein, upper fan housing (2) is fixedly connected with lower fan housing (4), it is characterized in that, described exhaust-air filter (1) is pressed on the interior exhaust outlet place of upper fan housing (2) by n root exhaust-air filter fixed bar, described decline filter (5) is pressed in the lower fan housing (4) by m root decline filter fixed bar, and wherein m and n are and are greater than or equal to 2 integer.
2. the easy-to-dismount Biohazard Safety Equipment of filter according to claim 1, it is characterized in that, the exhaust-air filter fixed bar is identical with decline filter fixed rod structure, include: a fixed bar dwang (18), a fixed bar handle (20) and two fixed bar cams, wherein, fixed bar dwang (18) passes two off-centered positions of fixed bar cam, and fixed bar handle (20) and fixed bar dwang (18) are welded into L-type.
3. the easy-to-dismount Biohazard Safety Equipment of filter according to claim 2 is characterized in that m=3; Card article (16) be provided with 1 decline filter fixed bar between the Zuo Bi of lower fan housing (4) and right wall before evenly is provided with 3 arc grooves on the card article (16) before the decline filter fixed bar; Card article (9,26 and 27) after the rear wall of lower fan housing (4) is provided with 3 decline filter fixed bars is provided with 1 arc groove on the card article behind each decline filter fixed bar.
4. the easy-to-dismount Biohazard Safety Equipment of filter according to claim 3, it is characterized in that, decline filter (5) is pressed on lower fan housing (4) when interior by decline filter fixed bar, and 3 decline filter fixed bars (10,22 and 23) are stuck in the arc groove of card article (9,26 and 27) behind 3 decline filter fixed bars corresponding to 3 arc grooves of the front card article of decline filter fixed bar (16) and position.
5. the easy-to-dismount Biohazard Safety Equipment of filter according to claim 4 is characterized in that n=2; Being in the wind is provided with card article (14) before 1 exhaust-air filter fixed bar between the Zuo Bi of cover (2) and the right wall, evenly be provided with 2 arc grooves on the card article (14) before the exhaust-air filter fixed bar; Being in the wind is provided with card article (11 and 25) behind 2 exhaust-air filter fixed bars on the rear wall of cover (2), is provided with 1 arc groove behind each exhaust-air filter fixed bar on the card article.
6. the easy-to-dismount Biohazard Safety Equipment of filter according to claim 5, it is characterized in that, exhaust-air filter (1) is pressed on upper fan housing (2) when interior by the exhaust-air filter fixed bar, and 2 exhaust-air filter fixed bars (12 and 21) are stuck in the arc groove of card article (11 and 25) behind 2 exhaust-air filter fixed bars corresponding to 2 arc grooves of the front card article of exhaust-air filter fixed bar (14) and position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220526488.8U CN202845025U (en) | 2012-10-16 | 2012-10-16 | Biological safety cabinet with filter easy to assemble and disassemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220526488.8U CN202845025U (en) | 2012-10-16 | 2012-10-16 | Biological safety cabinet with filter easy to assemble and disassemble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202845025U true CN202845025U (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220526488.8U Expired - Fee Related CN202845025U (en) | 2012-10-16 | 2012-10-16 | Biological safety cabinet with filter easy to assemble and disassemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202845025U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872923A (en) * | 2012-10-16 | 2013-01-16 | 立德泰勀(上海)科学仪器有限公司 | Biosafety cabinet provided with easily-assembled and disassembled filters |
| CN104613628A (en) * | 2015-02-28 | 2015-05-13 | 张忠 | Compressing device and new wind machine with same |
| CN110756231A (en) * | 2019-10-28 | 2020-02-07 | 北京市医疗器械检验所 | Portable teaching biological safety cabinet |
-
2012
- 2012-10-16 CN CN201220526488.8U patent/CN202845025U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872923A (en) * | 2012-10-16 | 2013-01-16 | 立德泰勀(上海)科学仪器有限公司 | Biosafety cabinet provided with easily-assembled and disassembled filters |
| CN104613628A (en) * | 2015-02-28 | 2015-05-13 | 张忠 | Compressing device and new wind machine with same |
| CN110756231A (en) * | 2019-10-28 | 2020-02-07 | 北京市医疗器械检验所 | Portable teaching biological safety cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20211016 |