CN210522534U - Pipeline connection type biological safety cabinet - Google Patents
Pipeline connection type biological safety cabinet Download PDFInfo
- Publication number
- CN210522534U CN210522534U CN201921488293.7U CN201921488293U CN210522534U CN 210522534 U CN210522534 U CN 210522534U CN 201921488293 U CN201921488293 U CN 201921488293U CN 210522534 U CN210522534 U CN 210522534U
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- China
- Prior art keywords
- air
- suction opening
- fan
- workbench
- air suction
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- Expired - Fee Related
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- 239000011521 glass Substances 0.000 claims abstract description 21
- 238000009423 ventilation Methods 0.000 claims description 12
- 238000004378 air conditioning Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 206010010904 Convulsion Diseases 0.000 abstract description 2
- 230000036461 convulsion Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000002458 infectious effect Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model relates to a biological test equipment technical field especially relates to a pipeline connection formula biosafety cabinet, include: the cabinet body, the filter box, the fan and the workbench; the upper end and the lower end of the filter box are provided with high-efficiency filters, and the top of the cabinet body is provided with an air outlet; the air outlet of the fan is connected with the filter box, the bottom of the workbench is provided with an air suction opening, a connecting pipe is arranged between the air suction opening and an air inlet of the fan, and the front end of the workbench is provided with a glass stop door. The utility model discloses an use the connecting pipe to be connected the suction opening that will set up under the workstation with the income wind gap of fan, will original double-deck negative pressure structure cancellation, adopt the connecting pipe to carry out convulsions to the workstation, reduced the sealing performance requirement to the cabinet body, reduced the manufacturing degree of difficulty of the cabinet body, overcome prior art and required higher problem to cabinet body sealing performance.
Description
Technical Field
The utility model relates to a biological test equipment technical field especially relates to a pipeline connection formula biosafety cabinet.
Background
The biosafety cabinet is designed for protecting the operator, the laboratory environment and the experimental materials from being exposed to infectious aerosols and splashes which may be generated in the operation process when operating infectious experimental materials such as primary cultures, strains of bacteria and viruses and diagnostic specimens.
In the prior art, the biosafety cabinet mostly adopts a negative pressure double-layer box structure, namely, a sealing structure is arranged between the box body and a workbench in the box body, negative pressure is formed in the box body through a suction opening of a blower, and positive pressure is formed in the workbench. The double-layer box structure has high requirements on the sealing performance and the production process. And once leakage occurs, the overhaul difficulty of the safety cabinet is also very high.
In view of the above problems, the designer is based on the practical experience and professional knowledge that are abundant for many years in engineering application of such products, and is actively researched and innovated in cooperation with the application of theory, so as to create a pipeline-connected biosafety cabinet, which is more practical.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: provides a pipeline connection type biological safety cabinet, which reduces the sealing requirement of the safety cabinet.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a pipe-connected biosafety cabinet comprising: the cabinet body, the filter box, the fan and the workbench;
the upper end and the lower end of the filter box are provided with high-efficiency filters, and the top of the cabinet body is provided with an air outlet; the air outlet of the fan is connected with the filter box, the bottom of the workbench is provided with an air suction opening, a connecting pipe is arranged between the air suction opening and an air inlet of the fan, and the front end of the workbench is provided with a glass stop door.
Preferably, the air suction opening comprises an air guide groove, an air suction shell and an air suction pipe joint, ventilation holes are formed in two side walls of the air guide groove, the air suction shell surrounds the periphery of the air guide groove, and the air suction pipe joint is connected with the air suction shell so as to suck out air entering the air suction shell through the air guide groove.
Preferably, the cross section of the air guide groove is V-shaped, and the vent holes are uniformly distributed on two side surfaces of the air guide groove.
Preferably, the air suction opening is arranged at the front end of the workbench and connected with the bottom of the glass stop door.
Preferably, the glass shutter is arranged obliquely in the vertical direction.
Preferably, a second air suction opening is formed in the bottom of the rear side face of the workbench and connected with an air inlet of the fan through a second connecting pipe.
Preferably, the second suction opening comprises a ventilation exhaust hole arranged at the bottom of the rear side face of the workbench, a second air exhaust shell covering the ventilation exhaust hole from the back face and a pipe joint communicated with the second air exhaust shell.
Preferably, the bottom side and the rear side of the cabinet body are detachably arranged.
The utility model has the advantages that: the utility model discloses an use the connecting pipe to be connected the suction opening that will set up under the workstation with the income wind gap of fan, will original double-deck negative pressure structure cancellation, adopt the connecting pipe to carry out convulsions to the workstation, reduced the sealing performance requirement to the cabinet body, reduced the manufacturing degree of difficulty of the cabinet body, overcome prior art and required higher problem to cabinet body sealing performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of a pipeline-connected biosafety cabinet according to an embodiment of the present invention;
fig. 2 is a sectional view taken along the direction a in fig. 1 according to an embodiment of the present invention;
fig. 3 is a sectional view taken along the direction B in fig. 2 according to an embodiment of the present invention;
fig. 4 is a schematic structural view of an air suction opening in the embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of an air suction opening in an embodiment of the present invention;
FIG. 6 is a front view of the working table according to the embodiment of the present invention;
fig. 7 is a cross-sectional view taken along the direction C of fig. 6 according to an embodiment of the present invention;
fig. 8 is a back perspective view of the pipeline-connected biosafety cabinet according to an embodiment of the present invention.
Reference numerals: 10-cabinet body, 11-air outlet, 20-filter box, 21-high efficiency filter, 30-blower, 31-connecting pipe, 32-second connecting pipe, 40-workbench, 41-air suction opening, 42-glass door, 43-second air suction opening, 411-air guide groove, 412-air suction shell, 413-air suction pipe joint, 431-ventilation exhaust hole, 432-second air suction shell and 433-pipe joint.
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.
The pipeline-connected biosafety cabinet as shown in fig. 1 to 3 comprises: the cabinet body 10, the filter box 20, the fan 30 and the workbench 40;
the upper end and the lower end of the filter box 20 are provided with high-efficiency filters 21, and the top of the cabinet body 10 is provided with an air outlet 11; the bottom of the filter box 20 is connected with the workbench 40, the air outlet of the fan 30 is connected with the filter box 20, the bottom of the workbench 40 is provided with an air suction opening 41, a connecting pipe 31 is arranged between the air suction opening 41 and the air inlet of the fan 30, and the front end of the workbench 40 is provided with a glass shutter 42.
In the above embodiment, as the direction indicated by the arrows in fig. 2 and 3 is the air flow direction, the air blown from the air outlet of the fan 30 enters the filter box 20, under the blowing of the fan 30, a part of the air flow passes through the high efficiency filter 21 on the upper portion of the filter box 20 and then enters the air outlet 11, another part of the air flow passes through the high efficiency filter 21 on the lower portion of the filter box 20 and then enters the worktable 40, a positive pressure is formed in the worktable 40, the air suction opening 41 arranged at the bottom of the worktable 40 is connected with the air inlet of the fan 30, the air inlet of the fan 30 generates a negative pressure during the operation, and the air in the worktable 40 is sucked into the fan 30 through the air suction opening 41 to form a circular flow. The glass shutter 42 has a space at the bottom, and the outside air enters the worktable 40 through the space at the bottom of the glass shutter 42 and is sucked into the blower 30 through the suction opening 41. Through the setting of connecting pipe 31, change traditional negative pressure double-deck space into inside individual layer space, use connecting pipe 31 to replace original seal structure, reduced the leakproofness requirement of the cabinet body 10, overcome the higher problem of leakproofness requirement among the prior art, reduced the manufacturing degree of difficulty, improved production efficiency.
As shown in fig. 4, the air suction opening 41 preferably includes an air guide slot 411, an air suction casing 412 and an air suction pipe joint 413, wherein ventilation holes are formed on two side walls of the air guide slot 411, the air suction casing 412 surrounds the periphery of the air guide slot 411, and the air suction pipe joint 413 is connected to the air suction casing 412 to suck out the air entering the interior of the air suction casing 412 through the air guide slot 411. Through the setting of wind-guiding groove 411, all leading-in to wind-guiding groove 411 with the air of blowing in on the workstation and the air of external world blowing in, avoided the direct entering workstation 40 of external air to lead to the contaminated possibility of material in the workstation 40, improved the cleanliness factor of material. Meanwhile, through the arrangement of the air suction shell 412 surrounded by the air guide groove 411, the air in the whole air guide groove 411 can be sucked into the fan 30 only by using the air suction pipe joint 413, and the air suction shell 412 is small in size, small in manufacturing difficulty, material-saving, improved in reliability of the air suction opening 41 and convenient for batch production. Specifically referring to fig. 5, after the air enters the air guide slot 411, the air enters the air draft casing 412 through the vent hole on the air guide slot 411, the air in the air draft opening 41 is exhausted through the air draft pipe joint 413 due to the contact between the air draft pipe joint 413 and the air draft casing 412, and the negative pressure space is formed inside the air draft casing 412 due to the air exhaust of the fan 30, so that the air draft area is enlarged through the air draft casing 412, and the air draft efficiency is improved.
With reference to fig. 4 and 5, the cross section of the air guiding slot 411 is V-shaped, and the ventilation holes are uniformly distributed on two side surfaces of the air guiding slot 411. It should be noted here that the bottom 411 of the air guiding groove is not provided with a vent hole, the arrangement is used for preventing liquid from spilling and leaking during operation, the bottom of the V-shaped groove can be used for temporarily collecting liquid, and then the liquid is dried in the air through the flow of negative pressure air, or the liquid is directly wiped off, so that pollution is avoided.
Further, in order to improve the air suction effect of the air suction opening 41, the air suction opening 41 is disposed at the front end of the worktable 40 and connected to the bottom of the glass shutter 42. The purpose of this arrangement is to make the air moving down along the glass shutter 42 at the front end of the worktable 40 intersect with the air entering from the outside and finally flow into the air suction opening 41, so as to prevent the outside air from bypassing the air suction opening 41 and entering the inside of the worktable 40, thereby preventing the material inside the worktable 40 from being further polluted.
As shown in fig. 2, the glass shutter 42 is disposed to be inclined in a vertical direction. The purpose that glass shutter 42 slope set up is convenient for the observer to see through inside glass observation workstation 40 on the one hand, and on the other hand for air guide in the workstation 40 makes the air through the inside glass shutter 42 laminating glass shutter 42 move down, thereby contacts with the outside air that gets into from the glass shutter bottom at glass shutter bottommost portion, thereby changes the direction that gets into the air current from the outside, makes the air directly flow into in the suction opening 41. Preferably, the angle of the glass door 42 to the vertical is 5 °, 10 ° or 15 °.
Referring to fig. 2, a second suction opening 43 is disposed at the bottom of the rear side of the working platform 40, and the second suction opening 43 is connected to the air inlet of the fan 30 through a second connection pipe 32. The arrangement of the second air suction opening 43 enables air flowing into the workbench 40 to flow out from the front end and the rear end of the bottom of the workbench 40 respectively, a scattered air flow is formed above the middle of the workbench 40, a clean air flow protection is formed for materials in the middle of the workbench 40, the air flow is prevented from being disordered, and the material cleanliness is improved.
Specifically, referring to fig. 6 and 7, the second suction opening 43 includes a ventilation hole 431 disposed at the bottom of the rear side of the worktable 40, a second suction casing 432 covering the ventilation hole 431 from the back, and a pipe joint 433 communicating with the second suction casing 432. Specifically, the ventilation holes 431 suck the air in the working platform 40 into the second air draft housing 432, and the air in the second air draft housing 432 is exhausted through the connection between the pipe joint 433 and the second air draft housing 432, where it is noted that the second connection pipe 32 and the connection pipe 31 are both connected to the air inlet of the fan 30. Similarly, the second air suction openings 43 may also be disposed at the bottoms of the two sides of the worktable 40 and then led out to the air inlet of the fan 30, so that the airflow in the worktable 40 is more stable, and the cleanliness of the material in the worktable 40 is higher.
As shown in fig. 8, the bottom side and the rear side of the cabinet 10 are detachably disposed. The bottom surface and the back of the cabinet body 10 can be detachably arranged, so that the connection pipes at the suction opening 41 and the second suction opening 43 can be conveniently replaced, the replacement and cleaning of the suction pipeline are convenient, the maintenance difficulty is reduced, and the service life of the biological safety cabinet is prolonged.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A tube-connecting type biosafety cabinet, comprising: the cabinet body (10), the filter box (20), the fan (30) and the workbench (40);
the upper end and the lower end of the filter box (20) are provided with high-efficiency filters (21), and the top of the cabinet body (10) is provided with an air outlet (11); the air-conditioning device is characterized in that the bottom of the filter box (20) is connected with a workbench (40), an air outlet of the fan (30) is connected with the filter box (20), an air suction opening (41) is formed in the bottom of the workbench (40), a connecting pipe (31) is arranged between the air suction opening (41) and an air inlet of the fan (30), and a glass stop door (42) is arranged at the front end of the workbench (40).
2. The pipe-connected biosafety cabinet according to claim 1, wherein the air suction opening (41) comprises an air guide groove (411), an air suction shell (412) and an air suction pipe joint (413), wherein two side walls of the air guide groove (411) are provided with vent holes, the air suction shell (412) surrounds the periphery of the air guide groove (411), and the air suction pipe joint (413) is connected with the air suction shell (412) so as to suck out the gas entering the interior of the air suction shell (412) through the air guide groove (411).
3. The pipeline-connected biosafety cabinet according to claim 2, wherein the cross-section of the air guide groove (411) is V-shaped, and the ventilation holes are uniformly distributed on two side surfaces of the air guide groove (411).
4. The pipe-connected biosafety cabinet according to claim 2, wherein the suction opening (41) is provided at the front end of the worktable (40) and connected to the bottom of the glass shutter (42).
5. The tube-connected biosafety cabinet according to claim 4, characterized in that the glass door (42) is disposed inclined in a vertical direction.
6. The pipe-connected biosafety cabinet according to claim 1, wherein a second suction opening (43) is provided on the bottom of the rear side of the worktable (40), and the second suction opening (43) is connected with the air inlet of the fan (30) through a second connecting pipe (32).
7. The pipe-connected biosafety cabinet according to claim 6, wherein the second suction opening (43) comprises a ventilation exhaust hole (431) provided at the bottom of the rear side of the worktable (40), a second suction casing (432) covering the ventilation exhaust hole (431) from the back, and a pipe joint (433) communicating with the second suction casing (432).
8. The pipe-connected biosafety cabinet according to claim 1, characterized in that the bottom side and the rear side of the cabinet body (10) are detachably disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921488293.7U CN210522534U (en) | 2019-09-06 | 2019-09-06 | Pipeline connection type biological safety cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921488293.7U CN210522534U (en) | 2019-09-06 | 2019-09-06 | Pipeline connection type biological safety cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210522534U true CN210522534U (en) | 2020-05-15 |
Family
ID=70604769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921488293.7U Expired - Fee Related CN210522534U (en) | 2019-09-06 | 2019-09-06 | Pipeline connection type biological safety cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210522534U (en) |
-
2019
- 2019-09-06 CN CN201921488293.7U patent/CN210522534U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200515 |