CN214681766U

CN214681766U - Biological safety cabinet

Info

Publication number: CN214681766U
Application number: CN202022781682.8U
Authority: CN
Inventors: 赵耘锋; 张康
Original assignee: Suzhou Baihaocheng Technology Co ltd
Current assignee: Suzhou Baihaocheng Technology Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-11-12
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a biological safety cabinet, including biological cabinet body, ventiduct and filtration case, the biological cabinet body includes anti-theft device, loading board and places the box, anti-theft device includes motor cabinet, motor, pivot, bearing frame, bearing and theftproof board, be equipped with air filter layer, bamboo charcoal fiber adsorption layer and active carbon adsorption layer in the filtration case, the ventiduct includes pneumatic valve, ventilating fan and vent. The utility model belongs to the technical field of biological safety purifies, specifically provide an air discharge behind the harmful substance filtering laboratory outside, avoid causing environmental pollution, the laboratory infection that causes and the cross contamination's of culture biological safety cabinet.

Description

Biological safety cabinet

Technical Field

The utility model belongs to the technical field of biological safety purifies, concretely relates to biological safety cabinet.

Background

The biological safety cabinet is widely applied to the fields of medical health, disease prevention and control, food health, biological pharmacy, environmental monitoring, various biological laboratories and the like, is an important basis for guaranteeing biological safety and environmental safety, is usually used for storing infectious biological materials such as primary cultures, strains of bacteria and viruses, diagnostic specimens and the like, is taken as the core content of biological safety management work in laboratories under the situation that the biological safety in laboratories is increasingly widely concerned, is particularly important for preserving and managing, is beneficial to developing research and experimental work by strengthening the preservation of the biological materials, is also a precondition for ensuring the safety of the biological materials, can also cause social panic once the biological materials are stolen, lost or maliciously used, even cause the epidemic prevalence and generate major biological safety accidents in laboratories, the existing biological safety cabinets can be divided into three categories, namely a first-level biological safety cabinet, a second-level biological safety cabinet and a third-level biological safety cabinet, so that different types of biological safety cabinets are purchased in a laboratory according to specific conditions, the cost is high, and the management is complicated.

At present, the existing biological safety cabinet can not filter harmful substances in the air and then discharge the harmful substances out of a laboratory, can not reduce the laboratory infection caused by aerosol exposure and the cross contamination of cultures, causes the environmental pollution, and can not adjust the air quantity discharged out of the laboratory and in a working box, so that the use of the biological safety cabinet is limited.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a because the aerosol exposes laboratory infection and the culture cross contamination's that causes problem, provide the air discharge behind the harmful substance filtering to the laboratory, avoid causing environmental pollution, avoid the laboratory infection that causes and the biological safety cabinet of cross contamination of culture.

The utility model adopts the technical scheme as follows: a biosafety cabinet comprises a biological cabinet body, a ventilation duct and an air filter box, wherein the air filter box is arranged on one side of the biological cabinet body, the ventilation duct is arranged on one side of the biological cabinet body above the air filter box, the ventilation duct is a hollow cavity with an opening at one end, the biological cabinet body is provided with an anti-theft device, a bearing plate and a placing box, the anti-theft device is arranged at the bottom of the biological cabinet body and comprises a motor base, a motor, a rotating shaft, a bearing seat, a bearing and an anti-theft plate, the motor base is arranged on the bottom wall of the biological cabinet body, the motor is arranged on the motor base, the bearing seat is arranged on the upper wall of the biological cabinet body, the bearing is clamped and arranged in the bearing seat, the rotating shaft is arranged between a motor power output end and the bearing, the rotating shaft is rotatably arranged in the bearing, a plurality of groups of equal distances of the bearing plate are arranged on the rotating shaft in parallel, the placing box is symmetrically arranged on the bearing plate, the anti-theft plate is arranged at one end of the bearing plate, the motor drives the rotating shaft to rotate, the rotating shaft drives the bearing plate to rotate so as to drive the placing box to rotate to one side under the initial state of the anti-theft plate, the anti-theft plate rotates to one side under the initial state of the placing box and is used for concealing the placing box in the biological cabinet body, the exhaust pipe is communicated and arranged between the air filter box and the biological cabinet body, the air filter box is internally provided with an air filter layer, a bamboo charcoal fiber adsorption layer and an active charcoal adsorption layer, one side of the air filter box, which is far away from the biological cabinet body, is provided with an air outlet, the air outlet is provided with an exhaust fan, the active charcoal adsorption layer is arranged at the air outlet and is attached to the air outlet, the bamboo charcoal fiber adsorption layer is arranged at one side of the active charcoal adsorption layer, which is far away from the active charcoal adsorption layer, the air in the biological cabinet body enters the air filter box through the exhaust pipe, the air is filtered by the air filter layer, the bamboo charcoal fiber adsorption layer and the activated carbon adsorption layer and is exhausted through the exhaust port, the exhaust fan is convenient to accelerate the exhaust of the air, the air filter box is provided with the lapping platform and the support frame, the air duct is arranged on the lapping platform and the support frame, the air duct comprises a pneumatic valve, a ventilating fan and a vent, the vent is arranged on one side of the air duct away from the biological cabinet body, the ventilating fan is arranged at the vent, the pneumatic valve is arranged in the air duct, the pneumatic valve comprises a round platform cavity, a cylindrical cavity and a control ball, the round platform cavity is arranged on one side of the air duct close to the biological cabinet body, the round platform cavity is communicated with the biological cabinet body and provided with a connecting pipe, the cylindrical cavity is arranged at one end of the round platform cavity away from the connecting pipe, and the control ball is arranged in the round platform cavity, the radius of the contact part of the circular truncated cone-shaped cavity and the control ball is smaller than that of the control ball, when the ventilating fan sucks air, the air pressure in the ventilation pipe is larger than the air pressure in the biological cabinet body, the air in the ventilation pipe flows into the biological cabinet body along the ventilation pipe to push the control ball to move to one side far away from the cylindrical cavity, thereby generating a gap between the control ball and the cavity wall of the circular truncated cone-shaped cavity, leading the vent pipe to be communicated, leading the air to flow into the biological cabinet body along the vent pipe, when biological cabinet body internal gas pressure is greater than ventilation pipe internal gas pressure, thereby this internal gaseous promotion control ball of biological cabinet makes control ball lateral wall and the chamber wall in round platform chamber in close contact with and then die with round platform chamber, and the ventilation pipe is stifled to die to cut, and this internal gaseous inefficacy of biological cabinet flows in to the ventilation pipe, and when ventilation pipe internal gas pressure was greater than biological cabinet body internal gas pressure once more, the ventilation pipe switched on once more.

Further, biological cabinet body one end is equipped with places the mouth, it is equipped with the pickproof lock to place the mouth, the pickproof lock includes door frame, burglary-resisting door, fingerprint lock, observation window, control panel and door-hinge, the door frame is located and is placed the mouth inboard, door-hinge locates door frame one side, the burglary-resisting door rotates and locates the door-hinge, fingerprint lock, control panel and observation window are located respectively on the burglary-resisting door, fingerprint lock and control panel top are located to the observation window, and the burglary-resisting door is convenient for deposit biological assay article.

Further, the inner wall of the biological cabinet body is provided with a steering button, and the steering button is electrically connected with the motor.

Furthermore, be equipped with ventilation button and air exhaust button on the burglary-resisting door, ventilation button and ventilating fan electric connection, air exhaust button and ventilating fan electric connection.

Further, this internal wall of biological cabinet is equipped with the fingerprint controller, fingerprint controller and control panel electric connection, control panel and fingerprint lock electric connection.

Further, a protective cover is arranged on the outer side of the motor and used for protecting the motor.

After the structure is adopted, the utility model discloses beneficial effect as follows: the utility model relates to a biosafety cabinet is with discharge outside the laboratory room behind the harmful substance filtering in the air, discharge through the filtration case with this internal gas filtration back of biological cabinet, avoid causing environmental pollution, the laboratory infection that causes and the cross contamination of culture, ventilate to the biological cabinet body through the ventiduct, the pneumatic valve has avoided this internal gas of biological cabinet to discharge through the ventiduct, cover the biological sample of depositing through anti-theft device, avoid the biological sample to receive the theft.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic view of the internal structure of a biosafety cabinet according to the present invention;

FIG. 2 is a front view of a biosafety cabinet according to the present invention;

fig. 3 is a rear view of the biosafety cabinet of the present invention.

In the drawings: 1. a biological cabinet body, 2, a ventilation duct, 3, an air filter box, 4, an anti-theft device, 5, a bearing plate, 6, a placing box, 7, a motor base, 8, a motor, 9, a rotating shaft, 10, a bearing seat, 11, a bearing, 12, an anti-theft plate, 13, an exhaust pipe, 14, an air filter layer, 15, a bamboo charcoal fiber adsorption layer, 16, an activated carbon adsorption layer, 17, an exhaust port, 18, an exhaust fan, 19, a lapping platform, 20, a support frame, 21, a pneumatic valve, 22, a ventilation fan, 23, a ventilation port, 24, a circular truncated cone shaped cavity, 25, a ventilation pipe, 26, a placing port, 27, an anti-theft lock, 28, a door frame, 29, an anti-theft door, 30, a fingerprint lock, 31, an observation window, 32, a control screen, 33, a door shaft, 34, a steering button, 35, a ventilation button, 36, an exhaust button, 37, a fingerprint controller, 38, a protective cover, 39, a cylindrical cavity, 40 and a control ball, 41. and (4) connecting the pipes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in figures 1-3, a biosafety cabinet comprises a biological cabinet body 1, a ventilation flue 2 and an air filter box 3, wherein the air filter box 3 is arranged on one side of the biological cabinet body 1, the ventilation flue 2 is arranged above the air filter box 3, the ventilation flue 2 is a hollow cavity with one open end, the biological cabinet body 1 comprises an anti-theft device 4, a bearing plate 5 and a placing box 6, the anti-theft device 4 is arranged at the bottom of the biological cabinet body 1, the anti-theft device 4 comprises a motor base 7, a motor 8, a rotating shaft 9, a bearing seat 10, a bearing 11 and an anti-theft plate 12, the motor base 7 is arranged on the bottom wall of the biological cabinet body 1, the motor 8 is arranged on the motor base 7, the bearing seat 10 is arranged on the upper wall of the biological cabinet body 1, the bearing 11 is clamped in the bearing seat 10, the rotating shaft 9 is arranged between the power output end of the motor 8 and the bearing 11, the rotary shaft 9 is rotatably arranged in a bearing 11, a plurality of groups of the bearing plates 5 are equidistantly and parallelly arranged on the rotary shaft 9, the placing boxes 6 are symmetrically arranged on the bearing plates 5, the anti-theft plate 12 is arranged at one end of the bearing plates 5, an exhaust pipe 13 is communicated between the air filtering box 3 and the biological cabinet body 1, an air filtering layer 14, a bamboo charcoal fiber adsorption layer 15 and an active charcoal adsorption layer 16 are arranged in the air filtering box 3, an air outlet 17 is arranged at one side of the air filtering box 3 away from the biological cabinet body 1, an exhaust fan 18 is arranged at the air outlet 17, the active charcoal adsorption layer 16 is attached to the air outlet 17, the bamboo charcoal fiber adsorption layer 15 is arranged at one side of the active charcoal adsorption layer 16 away from the air outlet 17, the air filtering layer 14 is arranged at one side of the bamboo charcoal fiber adsorption layer 15 away from the active charcoal adsorption layer 16, the air filter box 3 is provided with a carrying platform 19 and a supporting frame 20, the ventilation duct 2 is arranged on the carrying platform 19 and the supporting frame 20, the air duct 2 comprises an air-operated valve 21, a ventilating fan 22 and a vent 23, the vent 23 is arranged on one side of the air duct 2 far away from the biological cabinet body 1, the ventilating fan 22 is arranged at the ventilating opening 23, the air-operated valve 21 is arranged in the ventilating duct 2, the pneumatic valve 21 comprises a circular truncated cone-shaped cavity 24, a cylindrical cavity 39 and a control ball 40, the circular truncated cone-shaped cavity 24 is arranged on one side of the ventilation duct 2 close to the biological cabinet body 1, the circular truncated cone-shaped cavity 24 is communicated with the biological cabinet body 1 and is provided with a connecting pipe 41, the cylindrical cavity 39 is arranged at one end of the circular truncated cone-shaped cavity 24 far away from the connecting pipe 41, the cylindrical cavity 39 is communicated with the vent 23 and is provided with a vent pipe 25, the control ball 40 is arranged in the circular truncated cone-shaped cavity 24, and the radius of the contact part of the circular truncated cone-shaped cavity 24 and the control ball 40 is smaller than that of the control ball 40.

Wherein, one end of the biological cabinet body 1 is provided with a placing opening 26, the placing opening 26 is provided with an anti-theft lock 27, the anti-theft lock 27 comprises a door frame 28, an anti-theft door 29, a fingerprint lock 30, an observation window 31, a control screen 32 and a door shaft 33, the door frame 28 is arranged at the inner side of the placing opening 26, the door shaft 33 is arranged at one side of the door frame 28, the anti-theft door 29 is rotatably arranged at the door shaft 33, the fingerprint lock 30, the control screen 32 and the observation window 31 are respectively arranged on the anti-theft door 29, the observation window 31 is arranged above the fingerprint lock 30 and the control screen 32, the inner wall of the biological cabinet body 1 is provided with a turning button 34, the turning button 34 is electrically connected with the motor 8, the anti-theft door 29 is provided with a ventilation button 35 and an exhaust button 36, the ventilation button 35 is electrically connected with the ventilation fan 22, the exhaust button 36 is electrically connected with the fan 18, the inner wall of the biological cabinet body 1 is provided with a fingerprint controller 37, fingerprint controller 37 and control panel 32 electric connection, control panel 32 and fingerprint lock 30 electric connection, the motor 8 outside is equipped with protection casing 38.

When the biological cabinet is used, the anti-theft board 12 and the anti-theft door 29 are oppositely arranged in an initial state, the anti-theft board 12 can be seen through the observation window 31, the control screen 32 carries out fingerprint setting on the fingerprint lock 30 through the controller, the fingerprint anti-theft door 29 is input to rotate around the door shaft 33 to be opened, the steering button 34 is pressed, the anti-theft board 12 rotates to one side of the back body, the motor 8 drives the rotating shaft 9 to rotate, the bearing plate 5 is driven to rotate to drive the anti-theft board 12 to rotate to one side of the placing box 6 in the initial state, the placing box 6 rotates to one side of the anti-theft board 12 in the initial state, the anti-theft board 12 is used for concealing the placing box 6 in the biological cabinet body 1, the ventilation button 35 and the exhaust button 36 are respectively pressed to replace the gas in the biological cabinet body 1, the ventilation fan 22 sucks the air into the ventilation pipe 25, the air in the ventilation pipe 25 enters the pneumatic valve 21 to enter the biological cabinet body 1 through the connecting pipe 41, the radius of the contact part of the circular truncated cone-shaped cavity 24 and the control ball 40 is smaller than the radius of the control ball 40, when the ventilating fan 22 sucks air, the air pressure in the ventilating pipe 25 is larger than the air pressure in the biological cabinet body 1, the air in the ventilating pipe 25 flows into the biological cabinet body 1 along the ventilating pipe 25 to push the control ball 40 to move towards one side far away from the cylindrical cavity 39, so that a gap is generated between the control ball 40 and the cavity wall of the circular truncated cone-shaped cavity 24, the ventilating pipe 25 is communicated, the air flows into the biological cabinet body 1 along the ventilating pipe 25, when the air pressure in the biological cabinet body 1 is larger than the air pressure in the ventilating pipe 25, the air in the biological cabinet body 1 pushes the control ball 40 to be close to the cylindrical cavity 39, so that the side wall of the control ball 40 is in close contact with the cavity wall of the circular truncated cone-shaped cavity 24 to block the circular truncated cone-shaped cavity 24, the ventilating pipe 25 is blocked and cut off, the air in the biological cabinet body 1 cannot flow into the ventilating pipe 25 normally, and when the air pressure in the ventilating pipe 25 is larger than the air pressure in the biological cabinet body 1 again, the ventilation pipe 25 is conducted again, the gas in the biological cabinet body 1 enters the air filter box 3 through the exhaust pipe 13, the gas is filtered by the air filter layer 14, the bamboo charcoal fiber adsorption layer 15 and the activated carbon adsorption layer 16 and is exhausted through the exhaust port 17, and the exhaust fan 18 is convenient for accelerating the gas exhaust.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. A biosafety cabinet is characterized in that: comprises a biological cabinet body, a ventilation duct and an air filter box, wherein the air filter box is arranged on one side of the biological cabinet body, the ventilation duct is arranged above the air filter box, the ventilation duct is a hollow cavity with an opening at one end, the biological cabinet body comprises an anti-theft device, a bearing plate and a placing box, the anti-theft device is arranged at the bottom of the biological cabinet body, the anti-theft device comprises a motor base, a motor, a rotating shaft, a bearing seat, a bearing and an anti-theft plate, the motor base is arranged on the bottom wall of the biological cabinet body, the motor is arranged on the motor base, the bearing seat is arranged on the upper wall of the biological cabinet body, the bearing is clamped and arranged in the bearing seat, the rotating shaft is arranged between a power output end of the motor and the bearing, the rotating shaft is rotatably arranged in the bearing, a plurality of groups of equal distances of the bearing plate are parallelly arranged on the rotating shaft, and the placing box is symmetrically arranged on the bearing plate, the anti-theft plate is arranged at one end of the bearing plate, the exhaust pipe is communicated between the air filtering box and the biological cabinet body, an air filtering layer, a bamboo charcoal fiber adsorption layer and an active carbon adsorption layer are arranged in the air filtering box, an air outlet is formed in one side, away from the biological cabinet body, of the air filtering box, an exhaust fan is arranged at the air outlet, the active carbon adsorption layer is attached to the air outlet, the bamboo charcoal fiber adsorption layer is arranged at one side, away from the air outlet, of the active carbon adsorption layer, the air filtering layer is arranged at one side, away from the active carbon adsorption layer, of the bamboo charcoal fiber adsorption layer, the exhaust fan is convenient for accelerating gas discharge, a lapping table and a support frame are arranged on the air filtering box, the ventilation duct is arranged on the lapping table and the support frame, the ventilation duct comprises a pneumatic valve, a ventilation fan and a ventilation opening, the ventilation opening is arranged at one side, away from the biological cabinet body, of the ventilation duct, the utility model discloses a biological cabinet, including ventilation fan, pneumatic valve, round platform chamber, cylinder chamber and control ball, ventilation fan locates vent department, the pneumatic valve is located in the ventilation duct, the pneumatic valve includes round platform chamber, cylinder chamber and control ball, the one side that the ventilation duct is close to biological cabinet body is located to the round platform chamber, round platform chamber and biological cabinet body intercommunication are equipped with the connecting pipe, the one end that the connecting pipe was kept away from in the round platform chamber is located to the cylinder chamber, the control ball is located round platform shape intracavity, and the radius of round platform chamber and control ball contact site is less than the control ball radius.

2. A biosafety cabinet according to claim 1, wherein: biological cabinet body one end is equipped with places the mouth, it is equipped with the pickproof lock to place the mouth, the pickproof lock includes door frame, burglary-resisting door, fingerprint lock, observation window, control panel and door-hinge, the door frame is located and is placed the mouth inboard, door-hinge locates door frame one side, the burglary-resisting door rotates and locates the door-hinge, fingerprint lock, control panel and observation window are located respectively on the burglary-resisting door, fingerprint lock and control panel top are located to the observation window.

3. A biosafety cabinet according to claim 1, wherein: the inner wall of the biological cabinet body is provided with a steering button, and the steering button is electrically connected with the motor.

4. A biosafety cabinet according to claim 2, wherein: be equipped with ventilation button and air exhaust button on the burglary-resisting door, ventilation button and ventilating fan electric connection, air exhaust button and exhaust fan electric connection.

5. A biosafety cabinet according to claim 2, wherein: biological cabinet body inner wall is equipped with the fingerprint controller, fingerprint controller and control panel electric connection, control panel and fingerprint lock electric connection.

6. A biosafety cabinet according to claim 1, wherein: and a protective cover is arranged on the outer side of the motor.