CN212915705U - Gas circulation device of biological safety cabinet - Google Patents
Gas circulation device of biological safety cabinet Download PDFInfo
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- CN212915705U CN212915705U CN202021549240.4U CN202021549240U CN212915705U CN 212915705 U CN212915705 U CN 212915705U CN 202021549240 U CN202021549240 U CN 202021549240U CN 212915705 U CN212915705 U CN 212915705U
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Abstract
The utility model discloses a gas circulation device of biological safety cabinet, including the cylindricality casing, the medial surface middle part of cylindricality casing is equipped with the baffle, the baffle divide into cavity and lower cavity with the inside cavity of cylindricality casing, be equipped with a plurality of ultraviolet ray disinfection lamps of waiting to set up rather than high on the inner wall of cylindricality casing, the side that cylindricality casing and last cavity lower extreme correspond is equipped with the waste gas intake pipe, and the side that cylindricality casing and last cavity upper end correspond is equipped with the waste gas outlet duct. This gas circulation device of biological safety cabinet can improve the mobility of the inside gas of biological safety cabinet, can disinfect the disinfection to getting into inside and following the inside combustion gas of biological safety cabinet, avoids the impurity pollution experimental materials in the air, can avoid the infectious aerosol that probably produces and spill contaminated air simultaneously, improves the security, convenient to use that biological safety cabinet used.
Description
Technical Field
The utility model relates to a biological safety cabinet technical field specifically is a gas circulation device of biological safety cabinet.
Background
The biosafety cabinet is a device for protecting an operator, a laboratory environment and experimental materials from being exposed to infectious aerosols and splashes which may be generated in the operation process when the biosafety cabinet is used for operating infectious experimental materials such as primary cultures, strains of bacteria and viruses and diagnostic specimens.
The existing biological safety cabinet is mainly used for air exchange through an air exhaust mode through self-contained ventilation equipment, and the mode can only sterilize and disinfect the extracted air from the interior of the biological safety cabinet, so that the air easily pollutes experimental materials; in addition, the gas mobility in the biological safety cabinet is poor, and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, a gas circulation device of biological safety cabinet is provided, can improve the mobility of the inside gas of biological safety cabinet, can be to getting into the inside and disinfecting of the inside combustion gas of biological safety cabinet, avoid the impurity pollution experimental materials in the air, infectious aerosol that can avoid producing simultaneously and spill contaminated air, improve the security that biological safety cabinet used, high durability and convenient use, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: the gas circulation device of the biological safety cabinet comprises a cylindrical shell, wherein a partition plate is arranged in the middle of the inner side surface of the cylindrical shell, an inner cavity of the cylindrical shell is divided into an upper cavity and a lower cavity by the partition plate, and a plurality of ultraviolet disinfection lamps which are arranged at the same height as the inner wall of the cylindrical shell are arranged on the inner wall of the cylindrical shell.
And a waste gas inlet pipe is arranged on the side surface of the cylindrical shell corresponding to the lower end of the upper cavity, and a waste gas outlet pipe is arranged on the side surface of the cylindrical shell corresponding to the upper end of the upper cavity.
The side that cylindricality casing and lower cavity upper end correspond is equipped with the air intake pipe, and the side that cylindricality casing and lower cavity lower extreme correspond is equipped with the air outlet duct, the gas outlet of air outlet duct is equipped with the funnel, the inside of funnel is equipped with aerating device, aerating device includes servo motor, be equipped with the circular slab on servo motor's the output shaft, the upper surface of circular slab is equipped with the venthole that a plurality of groups distribute along its axle footpath.
The input end of the ultraviolet disinfection lamp and the input end of the servo motor are electrically connected with the output end of the external switch group.
As a preferred technical scheme of the utility model, the inside of cylindricality casing is equipped with helical blade, and helical blade's lateral surface and the medial surface contact of cylindricality casing.
As an optimized technical scheme of the utility model, the air inlet of air intake pipe is equipped with the filter.
As a preferred technical scheme of the utility model, the diameter of axle of circular slab is greater than the diameter of axle of the biggest department of funnel, and the lower surface of circular slab is equipped with the plane bearing that the funnel upper surface rotates to connect.
As an optimal technical scheme of the utility model, the upper surface of circular slab is equipped with the annular slab of being connected with outside biological safety cabinet, the venthole all is located the inboard of annular slab.
As an optimal technical scheme of the utility model, the periphery side of annular plate is equipped with the bearing, and the annular plate passes through the bearing and is connected with outside biological safety cabinet rotation.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the gas circulation device of the biological safety cabinet, the ultraviolet disinfection lamp can sterilize and disinfect the gas in the cylindrical shell, so that the gas with bacteria is prevented from polluting experimental materials and air; and the helical blade can increase the flowing time of the gas in the cylindrical shell, thereby improving the sterilization and disinfection effect of the ultraviolet disinfection lamp on the gas.
2. The utility model discloses the gas circulation device of biological safety cabinet of example, through outside air pump extraction air, the filter can filter the air, makes things convenient for the transport of disinfection back air.
3. The utility model discloses the gas circulation device of biological safety cabinet of example, the air after the disinfection can air outlet duct and funnel discharge, and servo motor can drive the circular plate and rotate, and the circular plate drives the venthole and rotates to adjust gas outgoing's position, make gas can be at the inside flow of whole biological safety cabinet, improve the inside gaseous mobility of biological safety cabinet, the infectious aerosol of being convenient for and the transport of spill discharge improve the security that biological safety cabinet used.
4. The utility model discloses the gas circulation device of biological safety cabinet of example can improve the inside gaseous mobility of biological safety cabinet, can get into the inside and disinfect with disinfecting from the inside combustion gas of biological safety cabinet, avoids the impurity pollution experimental materials in the air, can avoid the infectious aerosol that probably produces and spill contaminated air simultaneously, improves the security, convenient to use that biological safety cabinet used.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the inflator device of FIG. 2.
In the figure: 1 cylindrical shell, 2 helical blades, 3 ultraviolet disinfection lamps, 4 partition plates, 5 air inlet pipes, 51 filters, 6 air outlet pipes, 61 funnels, 62 plane bearings, 7 air charging devices, 71 servo motors, 72 circular plates, 73 annular plates, 74 bearings, 75 air outlet holes, 8 waste gas inlet pipes and 9 waste gas outlet pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a gas circulation device of biosafety cabinet, including cylindricality casing 1, the medial surface middle part of cylindricality casing 1 is equipped with baffle 4, baffle 4 is divided into cavity and lower cavity with the inside cavity of cylindricality casing 1, be equipped with a plurality of ultraviolet ray disinfection lamp 3 of waiting to set up rather than equal height on the inner wall of cylindricality casing 1, ultraviolet ray disinfection lamp 3 can carry out the disinfection of disinfecting to the inside gas of cylindricality casing 1, avoid the gas pollution experimental materials and the air that have the bacterium, the inside of cylindricality casing 1 is equipped with helical blade 2, and helical blade 2's lateral surface and the medial surface contact of cylindricality casing 1, helical blade 2 can increase gaseous flow time in cylindricality casing 1 inside, thereby improve the disinfection effect of ultraviolet ray disinfection lamp 3 to gaseous sterilization.
The side of the cylindrical shell 1 corresponding to the lower end of the upper cavity is provided with a waste gas inlet pipe 8, so that waste gas discharged and filtered by the biological safety cabinet can enter the upper cavity, and the side of the cylindrical shell 1 corresponding to the upper end of the upper cavity is provided with a waste gas outlet pipe 9, so that waste gas after sterilization and disinfection can be conveniently discharged.
The side that cylindricality casing 1 and lower cavity upper end correspond is equipped with air intake pipe 5, and air intake pipe 5's air inlet is equipped with filter 51, is connected the gas outlet of outside air pump and filter 51's air inlet, through outside air pump extraction air, filter 51 can filter the air, makes things convenient for the transport of disinfection back air to make the air enter into in the lower cavity through air intake pipe 5.
And the side of the cylindrical shell 1 corresponding to the lower end of the lower cavity is provided with an air outlet pipe 6, the air outlet of the air outlet pipe 6 is provided with a funnel 61, the interior of the funnel 61 is provided with an air charging device 7, the air charging device 7 comprises a servo motor 71, an output shaft of the servo motor 71 is provided with a circular plate 72, the upper surface of the circular plate 72 is provided with a plurality of groups of air outlet holes 75 distributed along the axial diameter of the circular plate, the sterilized air can be discharged through the air outlet pipe 6 and the funnel 61, the servo motor 71 can drive the circular plate 72 to rotate, the circular plate 72 drives the air outlet holes 75 to rotate, so that the position of gas discharge is adjusted, the gas can flow in the whole biological safety cabinet, the mobility of the gas in the biological safety cabinet is improved, the conveying and discharging of infectious aerosol and splashed substances are facilitated, and the.
The shaft diameter of the circular plate 72 is larger than the maximum shaft diameter of the funnel 61, and the lower surface of the circular plate 72 is provided with the plane bearing 62 which is rotatably connected with the upper surface of the funnel 61, so that the circular plate 72 can rotate conveniently, and meanwhile, the plane bearing 62 plays a role in sealing and connecting the circular plate 72 and the funnel 61.
The upper surface of circular plate 72 is equipped with the annular plate 73 that is connected with outside biological safety cabinet, and venthole 75 all is located the inboard of annular plate 73, and the periphery side of annular plate 73 is equipped with bearing 74, and annular plate 73 rotates through bearing 74 and outside biological safety cabinet to be connected, rotates through bearing 74 with annular plate 73 and biological safety cabinet to be connected, improves the sealed effect between biological safety cabinet and the annular plate 73.
The input end of the ultraviolet disinfection lamp 3 and the input end of the servo motor 71 are electrically connected with the output end of the external switch group.
The external switch group is provided with control buttons corresponding to the ultraviolet disinfection lamp 3 and the servo motor 71, and the ultraviolet disinfection lamp 3 and the servo motor 71 are electrical elements commonly used in the prior art.
The gas circulation device of the whole biological safety cabinet can improve the mobility of the gas inside the biological safety cabinet, can sterilize and disinfect the gas entering the biological safety cabinet and discharged from the inside of the biological safety cabinet, avoids the impurities in the air from polluting experimental materials, can avoid infectious aerosol and splashed substances possibly generated from polluting the air, improves the use safety of the biological safety cabinet, and is convenient to use.
When in use:
connecting an air outlet of the biological safety cabinet with a waste gas inlet pipe 8, connecting an air outlet of an external air pump with an air inlet of a filter 51, pumping air through the external air pump, filtering the air by the filter 51, and enabling the filtered air to enter a lower cavity through an air inlet pipe 5;
the operation of the ultraviolet disinfection lamp 3 and the servo motor 71 is controlled by the external switch group, air moves from top to bottom along the helical blade 2 in the lower cavity, the ultraviolet disinfection lamp 3 disinfects and disinfects the air, and the air is conveyed through the air outlet pipe 6 and the funnel 61;
the servo motor 71 drives the circular plate 72 to rotate, the circular plate 72 drives the air outlet hole 75 to rotate, and air is discharged through the air outlet hole 75 in the rotating process, so that the air flows in the whole biological safety cabinet, the original air in the biological safety cabinet is conveniently extruded to one side, and the original air is purified and filtered by a purifier on the biological safety cabinet;
waste gas after being purified and filtered enters into the last cavity through waste gas intake pipe 8, and waste gas moves from bottom to top along helical blade 2 in last cavity, and ultraviolet ray disinfection lamp 3 disinfects the disinfection to waste gas to make waste gas pass through waste gas outlet duct 9 and discharge.
The utility model discloses can improve the inside gaseous mobility of biological safety cabinet, can disinfect the disinfection to getting into biological safety cabinet inside and from the inside combustion gas of biological safety cabinet, avoid the impurity pollution experimental materials in the air, can avoid the infectious aerosol that probably produces simultaneously and spill contaminated air, improve the security that biological safety cabinet used, convenient to use.
The non-public part of the utility model is the prior art, and the concrete structure, the material and the working principle are not detailed. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A gas circulation device of a biosafety cabinet, comprising a cylindrical shell (1), characterized in that: a partition plate (4) is arranged in the middle of the inner side surface of the cylindrical shell (1), the partition plate (4) divides the inner cavity of the cylindrical shell (1) into an upper cavity and a lower cavity, and a plurality of ultraviolet disinfection lamps (3) which are arranged at the same height as the inner wall of the cylindrical shell (1) are arranged on the inner wall of the cylindrical shell (1);
a waste gas inlet pipe (8) is arranged on the side surface of the cylindrical shell (1) corresponding to the lower end of the upper cavity, and a waste gas outlet pipe (9) is arranged on the side surface of the cylindrical shell (1) corresponding to the upper end of the upper cavity;
an air inlet pipe (5) is arranged on the side face, corresponding to the upper end of the lower cavity, of the cylindrical shell (1), an air outlet pipe (6) is arranged on the side face, corresponding to the lower end of the lower cavity, of the cylindrical shell (1), a funnel (61) is arranged at an air outlet of the air outlet pipe (6), an air charging device (7) is arranged inside the funnel (61), the air charging device (7) comprises a servo motor (71), a circular plate (72) is arranged on an output shaft of the servo motor (71), and a plurality of groups of air outlet holes (75) distributed along the axial diameter of the circular plate (72) are formed in the upper surface of the circular plate (72);
the input end of the ultraviolet disinfection lamp (3) and the input end of the servo motor (71) are electrically connected with the output end of the external switch group.
2. The gas circulation device of the biosafety cabinet as claimed in claim 1, wherein: the spiral blade type air compressor is characterized in that a spiral blade (2) is arranged inside the cylindrical shell (1), and the outer side surface of the spiral blade (2) is in contact with the inner side surface of the cylindrical shell (1).
3. The gas circulation device of the biosafety cabinet as claimed in claim 1, wherein: and a filter (51) is arranged at the air inlet of the air inlet pipe (5).
4. The gas circulation device of the biosafety cabinet as claimed in claim 1, wherein: the shaft diameter of the circular plate (72) is larger than the shaft diameter of the largest position of the funnel (61), and the lower surface of the circular plate (72) is provided with a plane bearing (62) which is rotatably connected with the upper surface of the funnel (61).
5. The gas circulation device of the biosafety cabinet as claimed in claim 1, wherein: the upper surface of circular plate (72) is equipped with annular plate (73) of being connected with outside biological safety cabinet, venthole (75) all are located the inboard of annular plate (73).
6. The gas circulation device of the biosafety cabinet as claimed in claim 5, wherein: the peripheral side of the annular plate (73) is provided with a bearing (74), and the annular plate (73) is rotatably connected with an external biological safety cabinet through the bearing (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021549240.4U CN212915705U (en) | 2020-07-30 | 2020-07-30 | Gas circulation device of biological safety cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021549240.4U CN212915705U (en) | 2020-07-30 | 2020-07-30 | Gas circulation device of biological safety cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212915705U true CN212915705U (en) | 2021-04-09 |
Family
ID=75333130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021549240.4U Active CN212915705U (en) | 2020-07-30 | 2020-07-30 | Gas circulation device of biological safety cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212915705U (en) |
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2020
- 2020-07-30 CN CN202021549240.4U patent/CN212915705U/en active Active
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