CN208554238U - A kind of two stage biological safety cabinet - Google Patents
A kind of two stage biological safety cabinet Download PDFInfo
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- CN208554238U CN208554238U CN201821111926.8U CN201821111926U CN208554238U CN 208554238 U CN208554238 U CN 208554238U CN 201821111926 U CN201821111926 U CN 201821111926U CN 208554238 U CN208554238 U CN 208554238U
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Abstract
The utility model relates to technical field of experiment equipment, especially a kind of two stage biological safety cabinet, including moveable pedestal and cabinet body, the upper half is provided with blower in cabinet body, it is provided with ventilation window at the top of cabinet body, cabinet body front end is provided with door-plate, and the door-plate is slided up and down with cabinet body to be connect, the place of being slidably connected of door-plate and cabinet body, which is provided with damping, enables door-plate to rest on arbitrary height position, and door-plate makes door-plate lifting height directly proportional to ventilation window opening degree by connecting rod to ventilation window connection.Door-plate is connect by the utility model using link mechanism with ventilation window; automatically start blower while door-plate lifts and open ventilation window; door-plate Lift is directly proportional to ventilation window opening degree simultaneously, and door-plate opening degree is higher, and ventilation window opening degree is bigger; then draft capacity is opposite increases; increase negative pressure in cabinet body, so that it is guaranteed that infectious aerosol and spatters will not go out, the safety of Protection personnel; operation is simple and reliable, and experiment is convenient.
Description
Technical field
The utility model relates to technical field of experiment equipment, especially a kind of two stage biological safety cabinet.
Background technique
Biohazard Safety Equipment is born as biology, a kind of clean operating platform of medical domain to operator, operation ring
Three defencive functions in border and operated product, so that the pollution of operator and experimental situation from test medium, Er Qieshi
Testing medium can not be polluted by the non-clean facilities in environment, and can prevent the cross contamination of test medium in Biohazard Safety Equipment.With
Protect operator, laboratory environment and experimental material, during so that it is avoided exposure to aforesaid operations there may be
Infectious aerosol and spatters and design.
Two stage biological safety cabinet is the cabinet type being most widely used at present.As level-one Biohazard Safety Equipment, two stage biological
Safety cabinet also has air-flow to flow into front window opening, is referred to as " inlet air flow ", for preventing the gas that may be generated in microbiological manipulations
Colloidal sol is escaped from front window.Filtered inlet air flow can be captured before reaching working region by air-inlet grille, therefore trial target is not
It will receive the pollution of outside air.Experimenter needs first to start blower when operating two stage biological safety cabinet, then exists
Opening door-plate, which can just protrude into hand in safety cabinet, to be manipulated, and door-plate is closed after the completion of operation, is closing blower, completion is real
It tests, complicated operation.
Utility model content
Purpose of the utility model is to solve traditional two stage biological safety cabinet problems not smart enough complicated for operation, and
A kind of two stage biological safety cabinet is provided.
The technical solution adopted in the utility model are as follows: a kind of two stage biological safety cabinet, including moveable pedestal and thereon
The cabinet body being just arranged, the upper half is provided with blower in cabinet body, is provided with ventilation window at the top of cabinet body, and cabinet body front end is provided with door-plate,
The door-plate is slided up and down with cabinet body to be connect, and the place of being slidably connected of door-plate and cabinet body is provided with damping, and so that door-plate is stopped in office
Meaning height and position, door-plate make door-plate lifting height directly proportional to ventilation window opening degree by connecting rod to ventilation window connection, door-plate
On be provided with sensor detection door-plate Lift, be provided with controller on cabinet body, controller is electrically connected with sensor and blower.
The connecting rod and door-plate and ventilation window are hinged, hinged at the top of one end of ventilation window and cabinet body, and the other end and connecting rod are cut with scissors
It connects.
The connecting rod and door-plate and ventilation window are rigidly connected, and ventilation window entirely lifts when door-plate rises.
The door-plate is double layer hollow structure, and tradition of a family road is arranged inside, passes through hose and lower air mistake above tradition of a family road
Filter connection, lower air filter are connected to fan outlet, and door-plate lower end surface is provided with air port and blows out air curtain downwards, under air curtain
It is provided with air inlet on the cabinet body of side, is formed between the placement plate and cabinet body bottom plate of placement experimental article in air inlet and cabinet body
Lower air duct connection, the rear wall that air is directed to cabinet body from below arrive the air inlet of blower again, and fan outlet passes through its top
The upper air filter being arranged is connected to ventilation window.
The placement plate rear is provided with placement backboard, places air duct after being formed between backboard and cabinet body backboard, rear air duct
It is connected to lower air duct and is connected to above with air inlet below.
The utility model has the beneficial effects that door-plate is connect by the utility model using link mechanism with ventilation window, door-plate lift
Rise while start automatically blower and open ventilation window, start air circulation realize second level protection, while door-plate Lift with
Ventilation window opening degree is directly proportional, and door-plate opening degree is higher, and ventilation window opening degree is bigger, then draft capacity is opposite increases,
Increase negative pressure in cabinet body, so that it is guaranteed that infectious aerosol and spatters will not go out, the safety of Protection personnel, test
Blower and ventilation window is automatically closed after closing door-plate after the completion, operation is simple and reliable, and experiment is convenient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model ventilation window another embodiment.
In figure: 1- pedestal, 2- cabinet body, 3- blower, 4- ventilation window, 5- door-plate, 6- connecting rod, 7- sensor, 8- controller, 9-
Air filter under tradition of a family road, 10- hose, 11-, 12- air inlet, 13- placement plate, 14- lower air duct, the upper air filter of 15-,
16- places air duct after backboard, 17-.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
Specific embodiment 1.
As shown in Figure 1, a kind of two stage biological safety cabinet, including the cabinet body 2 that moveable pedestal 1 and its top are arranged, cabinet
The upper half is provided with blower 3 in body 2, and ventilation window 4 is provided at the top of cabinet body 2, and 2 front end of cabinet body is provided with door-plate 5, the door-plate 5
It slides up and down and connect with cabinet body 2, the place of being slidably connected of door-plate 4 and cabinet body 2, which is provided with damping, enables door-plate 5 to rest on any height
Position is spent, door-plate 5 makes 5 lifting height of door-plate directly proportional to 4 opening degree of ventilation window by connecting rod 6 to the connection of ventilation window 4, connecting rod
6 is hinged with door-plate 5 and ventilation window 4, and one end and 2 top of cabinet body of ventilation window 4 are hinged, and the other end and connecting rod 6 are hinged, and door-plate 5 is lifted
The upward Unscrew of ventilation window 4 when rising；5 opening degree of door-plate is higher, and 4 opening degree of ventilation window is bigger, then draft capacity is opposite
Increase, increases negative pressure in cabinet body 2, so that it is guaranteed that infectious aerosol and spatters will not go out, the peace of Protection personnel
Entirely；It is provided with sensor 7 on door-plate 5 and detects 5 Lift of door-plate, is provided with controller 8, controller 8 and sensor on cabinet body 2
7 and blower 3 be electrically connected, sensor 7 detect door-plate 5 whether open, door-plate 5 open controller 7 receive signal, signal is sent
On the contrary to controller 8, then controller 8 controls blower 3 and starts, and realizes automatically opening for blower, then blower 3 is automatically closed and saves
The energy；Sensor 7 can also detect the opening height of door-plate 5 simultaneously, altitude information is sent to controller 8, controller 8 controls
The power of blower increases the power of blower 3, to increase the negative pressure in cabinet body 2, protection is real when the opening height of door-plate 5 is higher
Test operator.
Further, door-plate 5 is double layer hollow structure, and tradition of a family road 9 is arranged inside, passes through hose 10 above tradition of a family road 9
With lower 11 connection of air filter, lower air filter 11 is connected to 3 air outlet of blower, 5 lower end surface of door-plate be provided with air port to
Lower blowout air curtain, is provided with air inlet 12 on the cabinet body 2 below air curtain, air inlet 12 with putting for experimental article is placed in cabinet body 2
It sets the lower air duct 14 formed between plate 13 and 2 bottom plate of cabinet body to be connected to, the rear wall that air is directed to cabinet body 2 from below arrives blower again
3 air inlet, 3 air outlet of blower are connected to by the upper air filter 15 that its top is arranged with ventilation window 4；13 rear of placement plate
It is provided with and places backboard 16, place air duct 17 after being formed between backboard 16 and 2 backboard of cabinet body, rear air duct 17 is below and lower air duct 14
Connection is connected to 3 air inlet of blower above.It is cabinet that blower 3, which blows out wind a part and is discharged to upper air filter 15 from ventilation window 4,
Formation negative pressure in body 2, a part arrive lower air filter 11, are sprayed downwards by hose 10 to tradition of a family road 9 and form air curtain blocking
Internal gas outflow, simultaneously because the negative pressure in cabinet body 2, outside air and curtain air enter 14 He of lower air duct from air inlet
Air duct 17 afterwards eventually pass back to blower 3, form air circulation duct in cabinet.
Specific embodiment 2.
As shown in Fig. 2, connecting rod 6 and door-plate 5 and ventilation window 4 are rigidly connected, ventilation window 4 is entirely lifted when door-plate 5 rises,
Remaining feature is identical as specific embodiment 1 to be repeated no more.
In other embodiments, multi-link structure can be used in connecting rod 6, guarantees that ventilation window 4 is opened when door-plate 5 rises.
Specific embodiment is the further explanation to the utility model rather than limits, and is come to those of ordinary skill in the art
It says and further transformation is done to structure in the case where not departing from the utility model in essence content, and all these transformation all should belong to
The protection scope of the appended claims for the utility model.
Claims (5)
1. a kind of two stage biological safety cabinet, including the cabinet body that moveable pedestal and its top are arranged, the upper half is arranged in cabinet body
There is blower, be provided with ventilation window at the top of cabinet body, cabinet body front end is provided with door-plate, it is characterised in that: above and below the door-plate and cabinet body
It is slidably connected, the place of being slidably connected of door-plate and cabinet body, which is provided with damping, enables door-plate to rest on arbitrary height position, and door-plate is logical
Cross connecting rod makes door-plate lifting height directly proportional to ventilation window opening degree to ventilation window connection, and sensor detection is provided on door-plate
Door-plate Lift is provided with controller on cabinet body, and controller is electrically connected with sensor and blower.
2. a kind of two stage biological safety cabinet according to claim 1, it is characterised in that: the connecting rod and door-plate and ventilation window
Hingedly, one end of ventilation window and cabinet body top are hinged, and the other end is hinged with connecting rod.
3. a kind of two stage biological safety cabinet according to claim 1, it is characterised in that: the connecting rod and door-plate and ventilation window
Rigid connection, ventilation window entirely lifts when door-plate rises.
4. a kind of two stage biological safety cabinet according to claim 1, it is characterised in that: the door-plate is double layer hollow knot
Structure is arranged inside tradition of a family road, passes through hose and lower air filter connection above tradition of a family road, lower air filter goes out with blower
Air port connection, door-plate lower end surface are provided with air port and blow out air curtain downwards, and air inlet, air inlet are provided on the cabinet body below air curtain
The lower air duct formed between the placement plate and cabinet body bottom plate for placing experimental article in cabinet body is connected to, and air is directed to from below
The rear wall of cabinet body arrives the air inlet of blower again, and the upper air filter and ventilation window that fan outlet is arranged by its top connect
It is logical.
5. a kind of two stage biological safety cabinet according to claim 4, it is characterised in that: the placement plate rear, which is provided with, puts
Backboard is set, air duct after being formed between backboard and cabinet body backboard is placed, is connected to below rear air duct with lower air duct and is entered the wind above with blower
Mouth connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821111926.8U CN208554238U (en) | 2018-07-13 | 2018-07-13 | A kind of two stage biological safety cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821111926.8U CN208554238U (en) | 2018-07-13 | 2018-07-13 | A kind of two stage biological safety cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208554238U true CN208554238U (en) | 2019-03-01 |
Family
ID=65493237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821111926.8U Active CN208554238U (en) | 2018-07-13 | 2018-07-13 | A kind of two stage biological safety cabinet |
Country Status (1)
| Country | Link |
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| CN (1) | CN208554238U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111195636A (en) * | 2020-01-10 | 2020-05-26 | 上海瑞仰净化装备有限公司 | Secondary biological safety cabinet for omnibearing sample protection |
| CN113874112A (en) * | 2019-07-10 | 2021-12-31 | 株式会社日立产机系统 | Safety cabinet |
| CN114260031A (en) * | 2020-09-25 | 2022-04-01 | 博奥生物集团有限公司 | Biological safety cabinet |
-
2018
- 2018-07-13 CN CN201821111926.8U patent/CN208554238U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113874112A (en) * | 2019-07-10 | 2021-12-31 | 株式会社日立产机系统 | Safety cabinet |
| CN111195636A (en) * | 2020-01-10 | 2020-05-26 | 上海瑞仰净化装备有限公司 | Secondary biological safety cabinet for omnibearing sample protection |
| CN114260031A (en) * | 2020-09-25 | 2022-04-01 | 博奥生物集团有限公司 | Biological safety cabinet |
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