CN220499198U - Biological safety cabinet - Google Patents
Biological safety cabinet Download PDFInfo
- Publication number
- CN220499198U CN220499198U CN202321674144.6U CN202321674144U CN220499198U CN 220499198 U CN220499198 U CN 220499198U CN 202321674144 U CN202321674144 U CN 202321674144U CN 220499198 U CN220499198 U CN 220499198U
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- cabinet body
- fixedly connected
- fixed block
- cabinet
- screw rod
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 12
- 229920000742 Cotton Polymers 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 8
- 238000001914 filtration Methods 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 7
- 239000000443 aerosol Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000011045 prefiltration Methods 0.000 description 4
- 238000004887 air purification Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010353 genetic engineering Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
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- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The utility model discloses a biosafety cabinet for a laboratory, and belongs to the technical field of biosafety. The device comprises a cabinet body, wherein a fixed block is arranged in the cabinet body and is fixedly connected with the inner bottom wall of the cabinet body, a track groove is formed in the outer surface of the fixed block, a sliding block is connected to the inner wall of the track groove in a sliding mode, a bidirectional screw rod is connected to the inner portion of the sliding block in a rotating mode, knobs are fixedly connected to the two ends of the bidirectional screw rod, two thread blocks are connected to the outer surface of the bidirectional screw rod in a threaded mode, clamping plates are fixedly connected to one ends, far away from the fixed block, of each thread block, through the knobs, the bidirectional screw rod is controlled to rotate, the thread blocks can be controlled to move through rotating clamping plates of the bidirectional screw rod, the two clamping plates can move in the same direction or in the opposite direction at the same time, the distance between the two clamping plates is enlarged or reduced, and the effect that the device can be used for fixing reaction dishes with different sizes through the knobs is achieved.
Description
Technical Field
The utility model relates to a biosafety cabinet, and belongs to the technical field of biosafety.
Background
The biological safety cabinet is a box-type air purification negative pressure safety device capable of preventing aerosol from escaping from some dangerous or unknown biological particles in the experimental operation treatment process. The protective screen is widely applied to scientific research, teaching, clinical examination and production in fields of microbiology, biomedicine, genetic engineering, biological products and the like, and is the most basic safety protection equipment in the primary protective screen in laboratory biosafety.
Through the search, a biological safety cabinet is disclosed in Chinese patent with publication number of CN217856218U, and the technical key points are as follows: the utility model discloses a biosafety cabinet, which comprises a workbench, a first shell and a second shell, wherein the first shell is matched with the workbench to form an operation space; an air outlet is formed at the top of the operation space, and a first filtering device is arranged at the air outlet; the second shell is matched with the workbench to form a lower space, an air inlet channel is formed in the lower space, and at least one air inlet is formed in the second shell; the workbench is provided with a channel, and a second filtering device is arranged between the air inlet duct and the channel. In the biosafety cabinet, air enters the air inlet channel from the air inlet, is filtered by the second filtering device, vertically passes through the workbench upwards, is blown into the operation space, and is filtered by the first filtering device and is discharged out of the operation space. When the biosafety cabinet is used, the wind direction is the direction from the lower vertical direction to the upper vertical direction, so that aerosol of each sample cannot influence other samples, cross contamination is avoided, and the requirement of sample detection result accuracy can be met.
According to the scheme, the problem that the extraction workstation can process a plurality of samples for automatic detection equipment at the same time, positive and negative conditions possibly exist in the plurality of samples at the same time is solved, and to ensure the accuracy of detection results, aerosol of each sample is required to not influence other samples. However, if the air flow near each sample is turbulent, the air flow can easily bring the aerosol of one sample into other samples, so that mutual pollution is caused among the samples, and the accuracy of the detection result is affected.
There is therefore a need to propose a new solution to this problem.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: a biosafety cabinet is provided, which solves the problem that the biosafety cabinet cannot be fixed in the prior art.
The technical problems to be solved by the utility model are realized by adopting the following technical scheme:
the utility model provides a biological safety cabinet for laboratory, includes the cabinet body, the inside of the cabinet body is equipped with the fixed block, the interior bottom wall fixed connection of fixed block and the cabinet body, the track groove has been seted up to the surface of fixed block, the inner wall sliding connection in track groove has the slider, the inside rotation of slider is connected with two-way lead screw, the both ends fixedly connected with knob of two-way lead screw, the surface threaded connection of two-way lead screw has two screw thread blocks, every the equal fixedly connected with splint of one end that the fixed block was kept away from to the screw thread block.
Through adopting above-mentioned technical scheme, the slider can be in the track groove, and the surface and the slider sliding connection of the inside screw thread piece of slider, when rotating the knob, two-way lead screw rotate, and two screw thread pieces are the syntropy or reverse removal simultaneously, and the one end that two splint are close to each other all overlaps has the silica gel cover, avoids the hard contact to the reaction dish.
The utility model is further provided with: the inside of the cabinet body is provided with four rollers, one end of each roller is rotationally connected with the outer surface of the fixed block, the other end of each roller is rotationally connected with the inner side wall of the cabinet body, and the outer surfaces of the two same-side rollers are rotationally connected with a conveying belt.
Through adopting above-mentioned technical scheme, the groove has been seted up to the interior bottom wall of the cabinet body, and inslot installation transport mechanism, conveyer belt are the straight face, and two conveyer belts are located the inslot of front and back both sides respectively.
The utility model is further provided with: the inner top wall of the cabinet body is fixedly connected with a plurality of illuminating lamps and ultraviolet lamps.
Through adopting above-mentioned technical scheme, when carrying out biological experiment operation, need open the light and guarantee that there is certain luminance in the working chamber, ultraviolet lamp is used for the disinfection of mesa and air in the working chamber, and the light is installed in ultraviolet lamp in turn, and the light can fully shine mesa and reaction dish when making the searchlight, and avoids the appearance of shadow to influence the operation when the operation.
The utility model is further provided with: the upper surface of fixed block fixedly connected with bellows, the surface fixed mounting of bellows has the outer filter of arranging.
Through adopting above-mentioned technical scheme, the filter of arranging outward plays the effect of protecting sample and the experimental article in the cabinet to the air purification in the cabinet, and the filter of arranging outward can filter harmful substances such as gaseous and aerosol that reactant produced in the reaction vessel.
The utility model is further provided with: the cabinet body is close to the one end fixed mounting of bellows and has the foraminiferous board, the inside fixed mounting of foraminiferous board has air cleaner.
Through adopting above-mentioned technical scheme, the perforated plate is as the air intake, and the prefilter cover of air intake is installed to its outside, makes air prefilter purify the back reentrant air cleaner in, can prolong air cleaner's life, installs air cleaner in the perforated plate, and air cleaner filters the air that external world got into in the cabinet.
The utility model is further provided with: two U-shaped conveyors are fixedly arranged in the cabinet body, one end of each U-shaped conveyor is fixedly connected with the outer surface of the fixing block, and the other end of each U-shaped conveyor is fixedly connected with the inner side wall of the cabinet body.
By adopting the technical scheme, the two ends of the two U-shaped conveyors are respectively close to the two conveyor belts and form a complete annular conveying mechanism with the two conveyor belts, and the reaction vessel can be driven to do circular motion along the fixed block.
The utility model is further provided with: the upper surface of the cabinet body is inserted with a glass door, two operation ports are formed in the outer surface of the glass door, a fan is fixedly installed on the upper surface of the cabinet body, the output end of the fan is fixedly connected with a bellows, filter cotton is fixedly connected to the inside of the bellows, and the filter cotton is fixedly connected with the output end of the fan.
Through adopting above-mentioned technical scheme, the part fixedly connected with rubber gloves of operation mouth can directly operate during the operation experiment, and the fan provides exhaust power, takes out the unclean air in the working chamber, and filter cotton also can play secondary filtration's effect, reduces harmful gas entering air.
The beneficial effects of the utility model are as follows:
1. according to the utility model, the two-way screw rod is controlled to rotate through the knob by arranging the fixing block, the sliding block, the two-way screw rod, the threaded block, the clamping plate and other parts, so that the threaded block can perform displacement control through the rotating clamping plate of the two-way screw rod, the two clamping plates can move in the same direction or in opposite directions at the same time, the distance between the two clamping plates is enlarged or reduced, and the effect that the device can fix reaction vessels with different sizes through the knob-controlled two-way screw rod is achieved.
2. According to the utility model, the conveyor belt, the U-shaped conveyor, the bellows and other parts are arranged, and the conveyor belt and the U-shaped conveyor are matched to form a complete conveying mechanism, so that the conveying mechanism can control displacement of a fixed reaction vessel, and further the effect that the device can uniformly search and ventilate biological reaction liquid through the conveying mechanism is achieved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic diagram of the internal structure of the present utility model.
Fig. 3 is a schematic structural view of a clamping device according to the present utility model.
Fig. 4 is a schematic view of the structure of the air filter of the present utility model.
In the figure: 1. a cabinet body; 2. a glass door; 3. an operation port; 4. a blower; 5. a lighting lamp; 6. an ultraviolet lamp; 7. a wind box; 8. an outer row of filter plates; 9. a fixed block; 10. a track groove; 11. a roller; 12. a conveyor belt; 13. a slide block; 14. a screw block; 15. a two-way screw rod; 16. a clamping plate; 17. a knob; 18. filtering cotton; 19. an air filter; 20. a U-shaped conveyor; 21. a perforated plate.
Detailed Description
The utility model will be further described with reference to the following detailed drawings, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 1-4, a biological safety cabinet for a laboratory comprises a cabinet body 1, wherein a fixed block 9 is arranged in the cabinet body 1, the fixed block 9 is fixedly connected with the inner bottom wall of the cabinet body 1, a track groove 10 is formed in the outer surface of the fixed block 9, a slide block 13 is slidably connected with the inner wall of the track groove 10, a bidirectional screw rod 15 is rotatably connected with the inner part of the slide block 13, two ends of the bidirectional screw rod 15 are fixedly connected with a knob 17, two threaded blocks 14 are in threaded connection with the outer surface of the bidirectional screw rod 15, one end of each threaded block 14 far away from the fixed block 9 is fixedly connected with a clamping plate 16, the slide block 13 can move in the track groove 10, the outer surface of the threaded block 14 in the slide block 13 is in sliding connection with the slide block 13, and when the knob 17 is rotated, the two threaded blocks 14 move in the same direction or in opposite directions, and one ends, close to each other, of the two clamping plates 16 are sleeved with a silica gel sleeve, so that hard contact to a reaction vessel is avoided.
The inside of the cabinet body 1 is provided with four idler wheels 11, one end of each idler wheel 11 is rotationally connected with the outer surface of the fixed block 9, the other end is rotationally connected with the inner side wall of the cabinet body 1, two conveying belts 12 are arranged in the cabinet body 1, each conveying belt 12 is rotationally connected with the outer surface of the corresponding idler wheel 11, a groove is formed in the inner bottom wall of the cabinet body 1, a conveying mechanism is installed in the groove, the conveying belts 12 are straight surfaces, and the two conveying belts 12 are respectively located in the grooves on the front side and the rear side.
The interior roof fixedly connected with of cabinet body 1 a plurality of lights 5 and ultraviolet lamp 6, when carrying out biological experiment operation, need open light 5 and guarantee that there is certain luminance in the working chamber, ultraviolet lamp 6 is used for the disinfection of mesa and air in the working chamber, and light 5 is installed in ultraviolet lamp 6 in turn, and the light can fully shine mesa and reaction dish when making the searchlight, and avoids the appearance of shadow to influence the operation when the operation.
The upper surface fixedly connected with bellows 7 of fixed block 9, the surface fixed mounting of bellows 7 has outer row filter 8, and outer row filter 8 plays the effect of protecting sample and the experimental article in the cabinet to the air purification in the cabinet, and outer row filter 8 can filter harmful substances such as gaseous and aerosol that reactant produced in the reaction vessel.
The cabinet body 1 is close to the one end fixed mounting of bellows 7 and has the perforated plate 21, and the inside fixed mounting of perforated plate 21 has air cleaner 19, and perforated plate 21 is as the air intake, and the prefilter cover of air intake is installed to its outside, makes air prefilter purify the back reentrant air cleaner 19, can prolong air cleaner 19's life, installs air cleaner 19 in the perforated plate 21, and air cleaner 19 filters the air that external world got into in the cabinet.
Two U-shaped conveyors 20 are fixedly arranged in the cabinet body 1, one end of each U-shaped conveyor 20 is fixedly connected with the outer surface of the fixed block 9, the other end of each U-shaped conveyor is fixedly connected with the inner side wall of the cabinet body 1, two ends of each U-shaped conveyor 20 are respectively close to the two conveyor belts 12 and form a complete annular conveying mechanism with the two conveyor belts 12, and the reaction vessel can move circumferentially along the fixed block 9.
The upper surface grafting of the cabinet body 1 has glass door 2, two operation mouths 3 have been seted up to the surface of glass door 2, the upper surface fixed mounting of the cabinet body 1 has fan 4, the output and the bellows 7 fixed connection of fan 4, the inside fixedly connected with of bellows 7 filters cotton 18, the cotton 18 of filtration and the output fixed connection of fan 4, the partial fixedly connected with rubber glove of operation mouthful 3 can directly operate during the operation experiment, fan 4 provides the exhaust power, take unclean air out in the working chamber, the cotton 18 of filtration also can play secondary filtration's effect, reduce harmful gas admission air.
The implementation principle of the utility model is as follows: firstly, the glass door 2 is pulled up and put in the middle of the reaction vessel to the clamp plate 16, the clamp plate 16 starts to shrink under the drive of the bidirectional screw rod 15 until the clamp plate 16 contacts with the reaction vessel, and the like, the required reaction vessel is fixed in the middle of the clamp plate 16, a control circuit is opened, a conveying mechanism and a sliding block 13 move simultaneously, then the glass door 2 is pulled down, rubber gloves at the operation port 3 are operated, then an ultraviolet lamp 6 is opened to fully disinfect culture solution, then a fan 4 is opened to exhaust the air in the cabinet, the working principle of the biosafety cabinet is mainly to suck the air in the cabinet outwards, the negative pressure state in the cabinet is kept, the external air is filtered by an air filter 19 and then enters the cabinet, so that the treated sample is prevented from being polluted, and the air in the cabinet is also required to be filtered by an external filter 8 and then discharged into the atmosphere by a filter cotton 18, so as to protect the environment.
The foregoing has shown and described the basic principles, principal features and advantages of the 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, but is capable of various changes and modifications without departing from the spirit and scope of the utility model. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a biosafety cabinet, includes cabinet body (1), its characterized in that: the inside of the cabinet body (1) is provided with a fixed block (9), the fixed block (9) is fixedly connected with the inner bottom wall of the cabinet body (1), a track groove (10) is formed in the outer surface of the fixed block (9), a sliding block (13) is slidably connected with the inner wall of the track groove (10), a bidirectional screw rod (15) is rotatably connected with the inside of the sliding block (13), two ends of the bidirectional screw rod (15) are fixedly connected with knobs (17), two threaded blocks (14) are connected with the outer surface of the bidirectional screw rod (15) in a threaded mode, and clamping plates (16) are fixedly connected with one ends of the threaded blocks (14) away from the fixed block (9).
2. A biosafety cabinet according to claim 1, wherein: the inside of the cabinet body (1) is provided with four idler wheels (11), one end of each idler wheel (11) is rotationally connected with the outer surface of the fixed block (9), the other end of each idler wheel is rotationally connected with the inner side wall of the cabinet body (1), the inside of the cabinet body (1) is provided with two conveying belts (12), and each conveying belt (12) is rotationally connected with the outer surface of the corresponding idler wheel (11).
3. A biosafety cabinet according to claim 1, wherein: the inner top wall of the cabinet body (1) is fixedly connected with a plurality of illuminating lamps (5) and ultraviolet lamps (6).
4. A biosafety cabinet according to claim 1, wherein: the upper surface of fixed block (9) fixedly connected with bellows (7), the surface fixed mounting of bellows (7) has outer row filter (8).
5. A biosafety cabinet according to claim 1, wherein: one end of the cabinet body (1) close to the bellows (7) is fixedly provided with a perforated plate (21), and an air filter (19) is fixedly arranged in the perforated plate (21).
6. A biosafety cabinet according to claim 1, wherein: two U-shaped conveyors (20) are fixedly arranged in the cabinet body (1), one end of each U-shaped conveyor (20) is fixedly connected with the outer surface of the fixed block (9), and the other end of each U-shaped conveyor is fixedly connected with the inner side wall of the cabinet body (1).
7. A biosafety cabinet according to claim 1, wherein: the novel intelligent cabinet is characterized in that the glass door (2) is inserted into the upper surface of the cabinet body (1), two operation ports (3) are formed in the outer surface of the glass door (2), a fan (4) is fixedly installed on the upper surface of the cabinet body (1), the output end of the fan (4) is fixedly connected with a bellows (7), filter cotton (18) is fixedly connected with the inside of the bellows (7), and the filter cotton (18) is fixedly connected with the output end of the fan (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321674144.6U CN220499198U (en) | 2023-06-29 | 2023-06-29 | Biological safety cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321674144.6U CN220499198U (en) | 2023-06-29 | 2023-06-29 | Biological safety cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220499198U true CN220499198U (en) | 2024-02-20 |
Family
ID=89877570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321674144.6U Active CN220499198U (en) | 2023-06-29 | 2023-06-29 | Biological safety cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220499198U (en) |
-
2023
- 2023-06-29 CN CN202321674144.6U patent/CN220499198U/en active Active
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