CN110369006A - A kind of biological safety cabinet body with decrease of noise functions - Google Patents
A kind of biological safety cabinet body with decrease of noise functions Download PDFInfo
- Publication number
- CN110369006A CN110369006A CN201910712494.9A CN201910712494A CN110369006A CN 110369006 A CN110369006 A CN 110369006A CN 201910712494 A CN201910712494 A CN 201910712494A CN 110369006 A CN110369006 A CN 110369006A
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- China
- Prior art keywords
- acoustical panel
- interior
- cabinet body
- noise
- drawstring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L1/00—Enclosures; Chambers
- B01L1/02—Air-pressure chambers; Air-locks therefor
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- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
This programme discloses safety protection equipment field, a kind of biological safety cabinet body with decrease of noise functions, cabinet body is enclosed by top plate and bottom plate, side plate and door body, side plate includes interior acoustical panel and outer acoustical panel, noise reduction cavity is equipped between interior acoustical panel and outer acoustical panel, several drawstrings are longitudinally equipped in noise reduction cavity, the side close with interior acoustical panel and outer acoustical panel is connect respectively at the both ends of drawstring, is designed with cotton balls on the every drawstring；Silencing cotton is equipped in outer acoustical panel.Side plate is especially transformed for the design of this programme, by the combination of air, drawstring, cotton balls and silencing cotton, weaken the propagation of noise, the length of drawstring is greater than the spacing between interior acoustical panel and outer acoustical panel, in this way bring noise can be acted on to avoid the straightline propagation of vibration, further damping vibration.
Description
Technical field
The present invention relates to safety protection equipment fields used in clinical examination, and in particular to a kind of with decrease of noise functions
Biological safety cabinet body.
Background technique
Biohazard Safety Equipment can be prevented in experimental implementation treatment process, certain to send out containing risk or non-intellectual biological particle
The box air cleaning negative pressure safety means of angry colloidal sol dissipation.It is widely used in microbiology, biomedicine, gene work
It is primary protection barrier in Laboratory biosafety in scientific research, teaching, clinical examination and the production in the fields such as journey, biological products
In most basic safety protection equipment.
The working principle of Biohazard Safety Equipment mainly aspirates air in cabinet outward, makes to keep negative pressure state in cabinet, pass through
Uprush protects staff；Outside air enters in safety cabinet after high efficiency particle air filter filters, to avoid processing
Sample is contaminated；Air in cabinet also needs to be discharged into atmosphere again after HEPA filter filters, to protect environment.
Biohazard Safety Equipment is generally made of two parts of cabinet and bracket, box house be equipped with air filtering system,
Outlet bellows system, sliding front window drive system, lighting source, ultraviolet source and control panel etc..Wherein, air filtering system
It is to guarantee the most important system of this equipment performance, it is by driving blower, air duct, recirculating air filter and outlet air filter
Composition.Its most important function is so that pure air is entered operating room, while be cleaned air stream efflux also, prevents dirt
Contaminate environment.Outlet bellows system is made of outlet bellows shell, blower and exhaust duct.Exhaust fan provides the power of exhaust,
Air unclean in operating room is extracted out, and is purified by discharging filtering device and plays the work for testing article in protection sample and cabinet
With being negative pressure in operating room, prevent workspace air from escaping, play the purpose for protecting operator since outlet acts on.
Biohazard Safety Equipment currently on the market when in use, when due to the operation such as driving blower, filter and exhaust fan
The low-frequency vibration of generation combines so that the vibration of bigger frequency occurs for entire Biohazard Safety Equipment, cause experimental situation generate compared with
Big noise.
Summary of the invention
The invention is intended to provide a kind of biological safety cabinet body with decrease of noise functions, with solve existing Biohazard Safety Equipment because
Vibration when being driven the self-operatings such as blower, filter and exhaust fan causes it that bigger frequency vibration occurs, and causes reality
Test the big problem of environmental noise.
One of this programme have decrease of noise functions biological safety cabinet body, the cabinet body by top plate and bottom plate, side plate and
Door body encloses, and the side plate includes interior acoustical panel and outer acoustical panel, and it is empty that noise reduction is equipped between interior acoustical panel and outer acoustical panel
Chamber is longitudinally equipped with several drawstrings in noise reduction cavity, between the length of the drawstring is greater than between interior acoustical panel and outer acoustical panel
Away from；The side close with interior acoustical panel and outer acoustical panel is connect respectively at the both ends of drawstring, is designed with cotton balls on the every drawstring；
Silencing cotton is equipped in outer acoustical panel.
The working principle of this programme is: the cabinet body provided using this programme, internal driving blower, filter and outlet
The isostructural setting of blower is identical with conventional defined setting, when the intracorporal driving blower of cabinet, filter and exhaust fan etc. are sent out
When raw vibration, the effect of vibration of generation is transmitted outward by cabinet body, and the side plate of this programme includes interior acoustical panel and outer acoustical panel, by
In being equipped with noise reduction cavity between interior acoustical panel and outer acoustical panel, since, there are air, the presence of air can weaken in cavity
Noise decibel.Again because being longitudinally equipped with several drawstrings in noise reduction cavity, the length of the drawstring is greater than interior acoustical panel and outside
Spacing between acoustical panel；Drawstring is equipped with cotton balls, and the blocking of drawstring and cotton balls has upset the route of transmission of noise, reduces noise
It echoes in noise reduction cavity, so that slowed noise；And since the length of drawstring is greater than between interior acoustical panel and outer acoustical panel
Spacing, so the middle part of drawstring can sink under its gravity, drawstring bending, for the drawstring being straightened, vibration
It propagates and weakens.Noise, the slowed noise being ultimately conducted to outside cabinet body are absorbed in conjunction with the silencing cotton in outer acoustical panel.
The advantageous effects of this programme are: side plate is especially transformed for the design of this programme, by air, drawstring, cotton
The combination of ball and silencing cotton weakens the propagation of noise, and the length of drawstring is greater than the spacing between interior acoustical panel and outer acoustical panel, this
Sample can act on bring noise to avoid the straightline propagation of vibration, further damping vibration.
Further, the top plate and interior acoustical panel are equipped with several blind holes close to the side of interior of the cabinet.Several blind holes
Top plate and interior acoustical panel can absorb partial noise by porosity characteristic, further enhance the noise reduction effect of cabinet body.
Further, the interior acoustical panel is evenly equipped with velveteen burr close to the side of outer acoustical panel.The setting of velveteen burr, makes
The surface of acoustical panel becomes coarse rough in obtaining, and reduces noise echoing in noise damping space, further enhances the drop of cabinet body
It makes an uproar effect.
Further, the cabinet body further includes the vibration damper plate of " recessed " shape, and the lower end vertical sliding of side plate outer wall is connected to damping
Multiple rubber columns are connected between the interior bottom of the inner wall of plate, bottom plate and vibration damper plate, multiple rubber columns are alternatively arranged.
Gap is formed between the bottom plate and vibration damper plate of the structure, so that cabinet body increases cavity structure, plays enhancing to noise is weakened
Elastic deformation occurs under external force, plays buffer function for effect, multiple rubber columns, weakens the vibration of cabinet body, in turn
Enhancing weakens the effect of noise.
Further, damping spring is equipped between the support column.Vibration is reduced, and then further decreases noise.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the biological safety cabinet body with decrease of noise functions of the present invention.
Specific embodiment
Below by the further details of explanation of specific embodiment:
Appended drawing reference: blind hole 1, top plate 2, interior acoustical panel 3, velveteen burr 4, drawstring 5, cotton balls 6, outer acoustical panel 7, silencing cotton
8, bottom plate 9, vibration damper plate 10, damping spring 11, rubber column 12, sliding rail 13, sliding slot 14.
As shown in Figure 1, a kind of biological safety cabinet body with decrease of noise functions, cabinet body is by top plate 2, bottom plate 9, side plate and door
Body (not shown) encloses, and side plate includes interior acoustical panel 3 and outer acoustical panel 7, between interior acoustical panel 3 and outer acoustical panel 7
Equipped with noise reduction cavity, several drawstrings 5 are longitudinally equipped in noise reduction cavity, the length of drawstring 5 is greater than interior acoustical panel 3 and outer acoustical panel
Spacing between 7；The side close with interior acoustical panel 3 and outer acoustical panel 7 is connect respectively at the both ends of drawstring 5, the every drawstring 5
On be designed with cotton balls 6；Interior acoustical panel 3 is evenly equipped with velveteen burr 4 close to the side of outer acoustical panel 7, and velveteen burr 4 is adopted in this programme
Be made of cloth, several velveteen the end of a thread be evenly equipped on cloth, so constitutes velveteen burr 4, by cloth using screw or
Person's super glue is fixed on interior acoustical panel 3, is equipped with silencing cotton 8 in outer acoustical panel 7.Top plate 2 and interior acoustical panel 3 are in cabinet body
The side in portion is equipped with several blind holes 1.
Cabinet body further includes the vibration damper plate 10 of " recessed " shape, and the lower end of side plate outer wall is equipped with sliding rail 13 vertically, inside vibration damper plate 10
Equipped with sliding slot 14, sliding rail 13 is connect with 14 longitudinal sliding motion of sliding slot, is so come so that the lower end of side plate outer wall is slidably connected at damping
The inner wall of plate 10, and define that the position of side plate sliding avoids deviating, it is connected between bottom plate 9 and the interior bottom of vibration damper plate 10
Multiple rubber columns 12, multiple rubber columns 12 are alternatively arranged.Damping spring 11, damping spring 11 are equipped between support column
It is alternately arranged with rubber column 12.
When the intracorporal driving blower of cabinet, filter and exhaust fan etc. vibrate, the effect of vibration of generation passes through cabinet body
Transmitting outward, the side plate of this programme includes the outer acoustical panel 7 of interior acoustical panel 3, due between interior acoustical panel 3 and outer acoustical panel 7
Equipped with noise reduction cavity, since, there are air, the presence of air can weaken noise decibel in cavity.Again because being indulged in noise reduction cavity
It is equipped with several drawstrings 5 upwards, the length of the drawstring 5 is greater than the spacing between interior acoustical panel 3 and outer acoustical panel 7；On drawstring 5
Equipped with cotton balls 6, the blocking of drawstring 5 and cotton balls 6 has upset the route of transmission of noise, reduces noise and echoes in noise reduction cavity, makes
Obtain slowed noise；And since the length of drawstring 5 is greater than the spacing between interior acoustical panel 3 and outer acoustical panel 7, so drawstring 5
Middle part can sink under its gravity, and drawstring 5 is bent, and for the drawstring 5 being straightened, the propagation of vibration weakens.In conjunction with
Silencing cotton 8 in outer acoustical panel 7 absorbs noise, the slowed noise being ultimately conducted to outside cabinet body.This programme is in top plate 2 and interior
Acoustical panel 3 is equipped with several blind holes 1 close to the side of interior of the cabinet, constitutes porous structure in this way, can absorb partial noise,
The setting of velveteen burr 4 reduces noise echoing in noise damping space so that the surface of interior acoustical panel 3 becomes coarse rough,
Gap is formed between bottom plate 9 and vibration damper plate 10, so that cabinet body increases cavity structure, plays the role of enhancing to noise is weakened,
Elastic deformation occurs under external force for multiple rubber columns 12, plays buffer function, weakens the vibration of cabinet body, so many knot
The improvement of structure has integrally achieved the effect that significant damping noise reduction, it is ensured that experimental situation is not by noise effect.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (5)
1. a kind of biological safety cabinet body with decrease of noise functions, the cabinet body enclosed by top plate and bottom plate, side plate and door body and
At, it is characterised in that: the side plate includes interior acoustical panel and outer acoustical panel, and it is empty that noise reduction is equipped between interior acoustical panel and outer acoustical panel
Chamber is longitudinally equipped with several drawstrings in noise reduction cavity, between the length of the drawstring is greater than between interior acoustical panel and outer acoustical panel
Away from；The side close with interior acoustical panel and outer acoustical panel is connect respectively at the both ends of drawstring, is designed with cotton balls on the every drawstring；
Silencing cotton is equipped in outer acoustical panel.
2. the biological safety cabinet body according to claim 1 with decrease of noise functions, it is characterised in that: the top plate and interior
Acoustical panel is equipped with several blind holes close to the side of interior of the cabinet.
3. the biological safety cabinet body according to claim 2 with decrease of noise functions, it is characterised in that: the interior acoustical panel
Side close to outer acoustical panel is evenly equipped with velveteen burr.
4. the biological safety cabinet body described in any one of claim 1 to 3 with decrease of noise functions, it is characterised in that:
The cabinet body further includes the vibration damper plate of " recessed " shape, and the lower end vertical sliding of side plate outer wall is connected to the inner wall of vibration damper plate, bottom plate with
Multiple rubber columns are connected between the interior bottom of vibration damper plate, multiple rubber columns are alternatively arranged.
5. the biological safety cabinet body according to claim 4 with decrease of noise functions, it is characterised in that: the support column it
Between be equipped with damping spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910712494.9A CN110369006B (en) | 2019-08-02 | 2019-08-02 | Biological safety cabinet body with function of making an uproar is fallen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910712494.9A CN110369006B (en) | 2019-08-02 | 2019-08-02 | Biological safety cabinet body with function of making an uproar is fallen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110369006A true CN110369006A (en) | 2019-10-25 |
| CN110369006B CN110369006B (en) | 2021-11-05 |
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ID=68257852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910712494.9A Active CN110369006B (en) | 2019-08-02 | 2019-08-02 | Biological safety cabinet body with function of making an uproar is fallen |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04225398A (en) * | 1990-04-11 | 1992-08-14 | Carl Freudenberg:Fa | Molded product for absorbing sound propagated in air |
| EP1342857A2 (en) * | 2002-02-28 | 2003-09-10 | Isopol S.r.l. | Coating element with high sound-absorbing properties |
| CN203669127U (en) * | 2014-01-16 | 2014-06-25 | 新天一集团有限公司 | Noise reduction construction site house building structure |
| CN206853697U (en) * | 2017-03-29 | 2018-01-09 | 天津丰华裕隆农业发展有限公司 | A kind of superclean bench with noise reduction shock-absorbing function |
| CN206928996U (en) * | 2017-03-02 | 2018-01-26 | 长春东大恒丰汽车零部件有限公司 | A kind of high-efficient noise-reducing device of exhaust tail pipe of automobile |
| CN207102934U (en) * | 2017-07-04 | 2018-03-16 | 合肥恩凯免疫治疗技术研究所有限公司 | A kind of palm centrifuge of low noise |
-
2019
- 2019-08-02 CN CN201910712494.9A patent/CN110369006B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04225398A (en) * | 1990-04-11 | 1992-08-14 | Carl Freudenberg:Fa | Molded product for absorbing sound propagated in air |
| EP1342857A2 (en) * | 2002-02-28 | 2003-09-10 | Isopol S.r.l. | Coating element with high sound-absorbing properties |
| CN203669127U (en) * | 2014-01-16 | 2014-06-25 | 新天一集团有限公司 | Noise reduction construction site house building structure |
| CN206928996U (en) * | 2017-03-02 | 2018-01-26 | 长春东大恒丰汽车零部件有限公司 | A kind of high-efficient noise-reducing device of exhaust tail pipe of automobile |
| CN206853697U (en) * | 2017-03-29 | 2018-01-09 | 天津丰华裕隆农业发展有限公司 | A kind of superclean bench with noise reduction shock-absorbing function |
| CN207102934U (en) * | 2017-07-04 | 2018-03-16 | 合肥恩凯免疫治疗技术研究所有限公司 | A kind of palm centrifuge of low noise |
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| Publication number | Publication date |
|---|---|
| CN110369006B (en) | 2021-11-05 |
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