CN110369006B - Biological safety cabinet body with function of making an uproar is fallen - Google Patents
Biological safety cabinet body with function of making an uproar is fallen Download PDFInfo
- Publication number
- CN110369006B CN110369006B CN201910712494.9A CN201910712494A CN110369006B CN 110369006 B CN110369006 B CN 110369006B CN 201910712494 A CN201910712494 A CN 201910712494A CN 110369006 B CN110369006 B CN 110369006B
- Authority
- CN
- China
- Prior art keywords
- plate
- cabinet body
- noise reduction
- silencing plate
- silencing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The scheme discloses the field of safety protection equipment, and discloses a biosafety cabinet body with a noise reduction function, which is formed by enclosing a top plate, a bottom plate, a side plate and a door body, wherein the side plate comprises an inner silencing plate and an outer silencing plate, a noise reduction cavity is arranged between the inner silencing plate and the outer silencing plate, a plurality of pull ropes are longitudinally arranged in the noise reduction cavity, two ends of each pull rope are respectively connected with one side, close to the inner silencing plate and the outer silencing plate, and a cotton ball is arranged on each pull rope; the outer silencing plate is internally provided with silencing cotton. The design of this scheme carries out special transformation with the curb plate, with the cotton combination of air, stay cord, cotton ball and amortization, weakens the propagation of noise, and the length of stay cord is greater than the interval between interior abatvoix and the outer abatvoix, can avoid the straight line of vibration to propagate like this, further weakens the noise that the vibration effect brought.
Description
Technical Field
The invention relates to the field of safety protection equipment used in clinical examination, in particular to a biological safety cabinet body with a noise reduction function.
Background
The biological safety cabinet is a box-shaped air purification negative pressure safety device which can prevent aerosol from dissipating when some biological particles containing dangerousness or unknown biological particles are generated in the experimental operation and treatment process. The protective screen is widely applied to scientific research, teaching, clinical examination and production in the fields of microbiology, biomedicine, genetic engineering, biological products and the like, and is the most basic safety protective equipment in the primary protective screen in the biological safety of laboratories.
The working principle of the biological safety cabinet is mainly that air in the cabinet is sucked outwards, so that the interior of the cabinet is kept in a negative pressure state, and workers are protected by vertical air flow; the outside air is filtered by the high-efficiency air filter and then enters the safety cabinet to avoid the pollution of the processed sample; the air in the cabinet is also filtered by the HEPA filter and then discharged to the atmosphere to protect the environment.
The biological safety cabinet generally comprises a box body and a support, wherein an air filtering system, an outer exhaust air box system, a sliding front window driving system, an illuminating light source, an ultraviolet light source, a control panel and the like are arranged in the box body. The air filtering system is the system which ensures the performance of the equipment and is composed of a driving fan, an air channel, a circulating air filter and an external air filter. Its main function is to continuously make clean air enter the working chamber, and at the same time make the discharged air flow be purified so as to prevent environmental pollution. The outer air discharging box system consists of an outer air discharging box shell, a fan and an air discharging pipeline. The outer exhaust fan provides exhaust power, takes out unclean air in the studio to purify and play the effect of the interior experiment article of protection sample and cabinet by outer arranging the filter, because outer arranging the effect, be the negative pressure in the studio, prevent that the workspace air from escaping outward, play the purpose of protection operator.
When the biosafety cabinet in the current market is used, the low-frequency vibration generated when the driving fan, the filter, the outer exhaust fan and the like are operated is combined, so that the whole biosafety cabinet generates vibration with higher frequency, and the experimental environment generates larger noise.
Disclosure of Invention
The invention aims to provide a biological safety cabinet body with a noise reduction function, and aims to solve the problem that the conventional biological safety cabinet generates higher-frequency vibration due to vibration of a driving fan, a filter, an outer exhaust fan and the like during self operation, so that the experimental environment has high noise.
In the scheme, the biosafety cabinet body with the noise reduction function is formed by encircling a top plate, a bottom plate, a side plate and a door body, wherein the side plate comprises an inner noise reduction plate and an outer noise reduction plate, a noise reduction cavity is arranged between the inner noise reduction plate and the outer noise reduction plate, a plurality of pull ropes are longitudinally arranged in the noise reduction cavity, and the lengths of the pull ropes are larger than the distance between the inner noise reduction plate and the outer noise reduction plate; two ends of each pull rope are respectively connected with one side of the inner silencing plate close to the outer silencing plate, and each pull rope is provided with a cotton ball; the outer silencing plate is internally provided with silencing cotton.
The working principle of the scheme is as follows: the cabinet body that this scheme of use provided, its inside driving fan, the setting of structures such as filter and outer exhaust fan is the same with the setting of conventional regulation, and when internal driving fan of cabinet, filter and outer exhaust fan etc. took place the vibration, the vibration effect of production passes through the outside transmission of the cabinet body, and the curb plate of this scheme includes interior abatvoix and outer abatvoix, owing to be equipped with between interior abatvoix and the outer abatvoix and fall the cavity of making an uproar, owing to there is the air in the cavity, the existence of air can weaken the noise decibel. A plurality of pull ropes are longitudinally arranged in the noise reduction cavity, and the length of each pull rope is larger than the distance between the inner silencing plate and the outer silencing plate; the cotton balls are arranged on the pull rope, the transmission path of noise is disturbed by the blocking of the pull rope and the cotton balls, and the reverberation of the noise in the noise reduction cavity is reduced, so that the noise is weakened; and because the length of stay cord is greater than the interval between interior noise damping board and the outer noise damping board, so the middle part of stay cord can sink under its effect of gravity, and the stay cord is crooked, compares the stay cord of flare-outing, and the propagation of vibration weakens. Noise is absorbed by the silencing cotton in the outer silencing plate, and finally the noise transmitted to the outside of the cabinet body is weakened.
The beneficial technical effect of this scheme is: the design of this scheme carries out special transformation with the curb plate, with the cotton combination of air, stay cord, cotton ball and amortization, weakens the propagation of noise, and the length of stay cord is greater than the interval between interior abatvoix and the outer abatvoix, can avoid the straight line of vibration to propagate like this, further weakens the noise that the vibration effect brought.
Further, a plurality of blind holes are formed in one sides, close to the inside of the cabinet body, of the top plate and the inner silencing plate. The top plate and the inner silencing plate of the blind holes can absorb partial noise by virtue of the porous characteristic, so that the noise reduction effect of the cabinet body is further enhanced.
Furthermore, cotton wool burrs are uniformly distributed on one side, close to the outer sound-absorbing plate, of the inner sound-absorbing plate. Due to the arrangement of the cotton velvet burrs, the surface of the internal silencing plate becomes rough and unsmooth, the reverberation of noise in the noise reduction space is reduced, and the noise reduction effect of the cabinet body is further enhanced.
Further, the cabinet body still includes the shock attenuation board of "concave" shape, and the vertical sliding connection of lower extreme at curb plate outer wall is connected with a plurality of rubber support columns, a plurality of rubber support column interval arrangement at the inner bottom of shock attenuation board at the inner wall of shock attenuation board between bottom plate and the shock attenuation board. Form the clearance between the bottom plate of this structure and the shock attenuation board for the cabinet body has increased the cavity structure, plays the effect of reinforcing to weakening the noise, and a plurality of rubber support columns take place elastic deformation under the exogenic action, play the cushioning effect, weaken the vibration of the cabinet body, and then the reinforcing weakens the effect of noise.
Further, a damping spring is arranged between the support columns. Reduce vibration and further reduce noise.
Drawings
Fig. 1 is a schematic structural diagram of a biological safety cabinet body with a noise reduction function according to the present invention.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals: the damping device comprises a blind hole 1, a top plate 2, an inner damping plate 3, velveteen burrs 4, a pull rope 5, cotton balls 6, an outer damping plate 7, damping cotton 8, a bottom plate 9, a damping plate 10, a damping spring 11, a rubber support column 12, a slide rail 13 and a slide groove 14.
As shown in fig. 1, a biosafety cabinet body with a noise reduction function is formed by enclosing a top plate 2, a bottom plate 9, a side plate and a door body (not shown in the figure), wherein the side plate comprises an inner noise plate 3 and an outer noise plate 7, a noise reduction cavity is arranged between the inner noise plate 3 and the outer noise plate 7, a plurality of pull ropes 5 are longitudinally arranged in the noise reduction cavity, and the length of each pull rope 5 is greater than the distance between the inner noise plate 3 and the outer noise plate 7; two ends of each pulling rope 5 are respectively connected with one side of the inner silencing plate 3 close to the outer silencing plate 7, and each pulling rope 5 is provided with a cotton ball 6; one side equipartition that interior abatvoix 3 is close to outer abatvoix 7 has cotton linter burr 4, and cotton linter burr 4 adopts the cloth to make in this scheme, and the equipartition has a plurality of cotton linter line heads on the cloth, so constituted cotton linter burr 4, adopts screw or powerful glue to fix the cloth on interior abatvoix 3, is equipped with the amortization cotton 8 in the outer abatvoix 7. One side that roof 2 and interior abatvoix 3 are close to the cabinet body inside all is equipped with a plurality of blind holes 1.
The cabinet body still includes the shock attenuation board 10 of "concave" shape, and the lower extreme of curb plate outer wall is vertical to be equipped with slide rail 13, and the inside spout 14 that is equipped with of shock attenuation board 10, slide rail 13 and the vertical sliding connection of spout 14 make the lower extreme sliding connection of curb plate outer wall at the inner wall of shock attenuation board 10 like this, and has injectd the gliding position of curb plate and has avoided the skew, is connected with a plurality of rubber support columns 12 between the interior bottom of bottom plate 9 and shock attenuation board 10, a plurality of rubber support columns 12 interval arrangement. Damping springs 11 are arranged between the supporting columns, and the damping springs 11 and the rubber supporting columns 12 are alternately arranged.
When internal driving fan, filter and outer exhaust fan etc. of cabinet took place the vibration, the vibration effect of production was through the outside transmission of the cabinet body, and the curb plate of this scheme includes the outer acoustical panel 7 of interior acoustical panel 3, owing to be equipped with between interior acoustical panel 3 and outer acoustical panel 7 and fall the cavity of making an uproar, owing to there is the air in the cavity, the noise decibel can be weakened in the existence of air. A plurality of pull ropes 5 are longitudinally arranged in the noise reduction cavity, and the length of each pull rope 5 is larger than the distance between the inner noise reduction plate 3 and the outer noise reduction plate 7; the cotton balls 6 are arranged on the pull rope 5, the transmission path of noise is disturbed by the blocking of the pull rope 5 and the cotton balls 6, and the reverberation of the noise in the noise reduction cavity is reduced, so that the noise is weakened; moreover, since the length of the pulling cord 5 is greater than the distance between the inner and outer sound-deadening plates 3 and 7, the middle portion of the pulling cord 5 sinks under its weight, and the pulling cord 5 bends, and propagation of vibration is attenuated as compared with the pulling cord 5 that is straightened. The noise is absorbed by the noise-absorbing cotton 8 in the outer noise-absorbing plate 7, and finally the noise transmitted to the outside of the cabinet body is weakened. This scheme all is equipped with a plurality of blind holes 1 in roof 2 and interior abatvoix 3 one side that is close to the internal portion of cabinet, porous structure has been constituted like this, can absorb partial noise, the setting of cotton linter burr 4, make the surface of interior abatvoix 3 become rough not smooth, the reverberation of noise reduction in the space of making an uproar falls, form the clearance between bottom plate 9 and the shock attenuation board 10, make the cabinet body increase the cavity structure, play the effect of reinforcing to weakening the noise, a plurality of rubber support columns 12 take place elastic deformation under the exogenic action, play the cushioning effect, weaken the vibration of the cabinet body, so multi-structure improvement, whole effect that has reached showing vibration/noise reduction, ensure that the experimental environment is not influenced by the noise.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (5)
1. The utility model provides a biological safety cabinet body with function of making an uproar is fallen, the cabinet body is enclosed by roof, bottom plate, curb plate and the door body and closes its characterized in that: the side plate comprises an inner silencing plate and an outer silencing plate, a noise reduction cavity is arranged between the inner silencing plate and the outer silencing plate, a plurality of pull ropes are longitudinally arranged in the noise reduction cavity, and the lengths of the pull ropes are larger than the distance between the inner silencing plate and the outer silencing plate; two ends of each pull rope are respectively connected with one side of the inner silencing plate close to the outer silencing plate, and each pull rope is provided with a cotton ball; the outer silencing plate is internally provided with silencing cotton.
2. The biosafety cabinet body with the noise reduction function according to claim 1, characterized in that: and a plurality of blind holes are formed in one sides of the top plate and the inner silencing plate close to the inside of the cabinet body.
3. The biosafety cabinet body with the noise reduction function according to claim 2, characterized in that: and cotton wool burrs are uniformly distributed on one side of the inner silencing plate close to the outer silencing plate.
4. The biosafety cabinet body with the noise reduction function according to any one of claims 1 to 3, characterized in that: the cabinet body still includes the shock attenuation board of "concave" shape, and the vertical sliding connection of lower extreme at the curb plate outer wall is connected with a plurality of rubber support columns, a plurality of rubber support column interval arrangement at the inner bottom of shock attenuation board at the inner wall of shock attenuation board between bottom plate and the shock attenuation board.
5. The biosafety cabinet body with the noise reduction function according to claim 4, characterized in that: and a damping spring is arranged between the supporting columns.
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 CN110369006A (en) | 2019-10-25 |
| CN110369006B true CN110369006B (en) | 2021-11-05 |
Family
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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110369006B (en) |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110369006A (en) | 2019-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110369006B (en) | Biological safety cabinet body with function of making an uproar is fallen | |
| CN201599917U (en) | Sound eliminator of large-sized subway ventilating system | |
| WO2020006876A1 (en) | Elevator car having good ventilation performance | |
| CN208994915U (en) | A kind of elevator ventilation device | |
| WO2018187848A1 (en) | Aero-acoustic materials processing plant with noise attenuation system | |
| CN204175670U (en) | A kind of blower fan silencing device that can be used for feed-processing plant | |
| CN113775572A (en) | Noise reduction structure and noise reduction method of high-speed high-pressure centrifugal blower | |
| CN210373864U (en) | Air circulation purification system for ward | |
| CN210617836U (en) | Engine vibration/noise reduction device | |
| CN214392857U (en) | Optical fiber laser cutting machine with protective structure | |
| CN210832482U (en) | New fan housing of noise reduction | |
| CN210434188U (en) | Ultra-low noise dust remover | |
| CN108487981A (en) | A kind of auto exhaust muffler device | |
| JP6986508B2 (en) | Air conditioning system accommodation structure | |
| CN220578669U (en) | Elevator car with noise reduction function | |
| CN219532254U (en) | Negative pressure weighing cover | |
| CN213744048U (en) | Cabinet type centrifugal fan of low noise | |
| CN213419355U (en) | Fan is used in gauze mask production with installation adaptability | |
| CN218368063U (en) | Dust removal and noise reduction device for disassembling scraped car | |
| CN220081774U (en) | Novel fan case | |
| CN212057711U (en) | High-efficient combination formula noise elimination static pressure case | |
| CN117475973A (en) | Noise reduction equipment for subway vehicle construction | |
| CN213877561U (en) | Noise reduction device for air suction type smoke detector | |
| CN115559942B (en) | Weighing cover silence section | |
| CN203847448U (en) | Draught fan noise reduction system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |