CN216728721U - Biological safety cabinet and air volume cover tool thereof - Google Patents
Biological safety cabinet and air volume cover tool thereof Download PDFInfo
- Publication number
- CN216728721U CN216728721U CN202123326359.2U CN202123326359U CN216728721U CN 216728721 U CN216728721 U CN 216728721U CN 202123326359 U CN202123326359 U CN 202123326359U CN 216728721 U CN216728721 U CN 216728721U
- Authority
- CN
- China
- Prior art keywords
- air volume
- cover
- cabinet
- cover body
- elastic sealing
- 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
Landscapes
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The utility model relates to the technical field of biological safety cabinets, and discloses a biological safety cabinet and an air volume cover tool thereof. According to the biological safety cabinet and the air volume cover tool thereof, the air volume cover can be mounted on the biological safety cabinet by one person, so that the labor cost is reduced, the operation and mounting are convenient and fast, the dismounting efficiency is improved, the use of a sealing adhesive tape is reduced, and the material cost is saved.
Description
Technical Field
The utility model relates to the technical field of biological safety cabinets, in particular to a biological safety cabinet and an air volume cover tool thereof.
Background
The biological safety cabinet is a negative pressure filtering exhaust cabinet, and prevents operators and the environment from being exposed to biological aerosol generated in the experimental process. The biological safety cabinet is provided with a safety cabinet with a front window operation opening, and an operator can operate in the safety cabinet through the front window operation opening to protect personnel, products and the environment in the operation process. The negative pressure airflow sucked inwards through the front window operation opening is used for protecting the safety of personnel; the vertical downdraft filtered by the high-efficiency filter is used for protecting products; the air flow is discharged after being filtered by the high-efficiency filter to protect the environment from being polluted. Each performance of the biological safety cabinet is required to meet the requirements of the Chinese people's republic of China medical industry standard YY 0569-2005, which has strict requirements on the inflow wind speed of the biological safety cabinet. The flow of the incoming airflow is usually detected by a wind meter method, the average incoming airflow velocity is calculated, and the safety cabinet is confirmed to operate at the nominal value of the wind speed.
The air volume cover manufacturer only provides the air volume cover, does not provide the air volume cover to be installed on a corresponding tool of the biological safety cabinet, and is inconvenient to measure. A large amount of sealing rubber strips are usually consumed to manufacture a simple tool for fixing and sealing the air volume cover and the biological safety cabinet. The air volume cover and the biological safety cabinet are inconvenient to install through a simple tool, need assistance of a person and are fixed by a sealing adhesive tape; when the sealing tape is detached, the sealing tape needs to be torn off and repeatedly detected, the loss of the sealing tape is large, the viscosity of the sealing tape is not enough after the sealing tape is slightly torn off, and the sealing tape is easy to fall off. The sealing property of the sealing adhesive tape is poor, a large gap exists between the simple tool and the front window, the sealing adhesive tape is also required to be used for sealing, the space between the two sides of the air volume cover and the corresponding side faces of the air volume cover on the biological safety cabinet is small, and the operation difficulty is high.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is: the utility model provides a biosafety cabinet and amount of wind cover frock thereof, alone can accomplish the installation of amount of wind cover on biosafety cabinet, reduce the cost of labor, the convenient degree of operation installation is high, improves dismouting efficiency, reduces the use of sealed sticky tape, practices thrift the material cost.
In order to achieve the purpose, the air volume cover tool of the biological safety cabinet comprises a connecting cover body, wherein the connecting cover body is provided with a circulation cavity, the connecting cover body is provided with a cabinet body connecting port and a cover body connecting port, the cabinet body connecting port is communicated with the cover body connecting port through the circulation cavity, opposite side surfaces of the edge of the cabinet body connecting port respectively extend outwards to form installation clamping plates used for being clamped with the biological safety cabinet, a clamp used for fixing an air volume cover is arranged on the outer wall of the connecting cover body, and the clamp is located at one end of the cover body connecting port.
Preferably, the installation clamping plate comprises a glass baffle plate clamped with the front glass of the biological safety cabinet and a front grid baffle plate clamped with the front grid of the biological safety cabinet, the glass baffle plate is located at the upper end of the connecting cover body, and the front grid baffle plate is located at the lower end of the connecting cover body.
As the preferred scheme, the upper end and the lower end of the periphery of the cabinet body connecting port are respectively provided with an elastic sealing strip.
As a preferred scheme, one side of the elastic sealing strip at the upper end of the periphery of the cabinet body connecting port abuts against the glass baffle, and one side of the elastic sealing strip at the lower end of the periphery of the cabinet body connecting port abuts against the front grid baffle.
As a preferred scheme, the elastic sealing strip at the upper end of the periphery of the cabinet body connecting port is matched with the upper end of the cabinet body connecting port in length, and the elastic sealing strip at the lower end of the periphery of the cabinet body connecting port is matched with the lower end of the cabinet body connecting port in length.
Preferably, the connecting cover body is provided with a fixing frame which is used for being fixedly connected with the air volume cover, the fixing frame is opposite to the connecting cover body and extends outwards, the fixing frame is located at the periphery of the cover body connecting port, and the clamp is located at the peripheral edge of the fixing frame.
Preferably, the bottom surface of the fixed frame is provided with a bearing plate protruding relative to the fixed frame.
Preferably, the clamp comprises at least one clamp group, and the clamp group comprises two clamps, and the clamps in the clamp group are arranged opposite to each other on the periphery of the fixing frame.
A biosafety cabinet comprises a cabinet body, an air volume cover and an air volume cover tool, wherein an operation window is formed in the front of the cabinet body, a front window glass is mounted above the operation window, a front grid and a handrail are arranged at the lower end of the operation window, a clamping groove is formed between the front grid and the handrail, an installation clamping plate at the upper end of the air volume cover tool is mounted in the front window glass and is abutted against the front window glass, the installation clamping plate at the lower end of the air volume cover tool is inserted into the clamping groove, an air outlet of the air volume cover is abutted against a cover body connecting port, and the air volume cover and the cover body connecting port are fixed through a clamp.
Preferably, a first elastic sealing strip and a second elastic sealing strip are arranged on the periphery of the connecting cover body, the upper end face of the first elastic sealing strip abuts against the lower end of the front window glass, the lower end face of the first elastic sealing strip abuts against the connecting cover body, the lower end face of the second elastic sealing strip abuts against the upper end face of the handrail, and the upper end face of the second elastic sealing strip abuts against the connecting cover body.
Compared with the prior art, the biosafety cabinet and the air volume cover tool thereof have the beneficial effects that: the biological safety cabinet is connected with the air volume cover through the connecting cover body, and the connecting cover body is used as a connecting body and also used as a main supporting component. The cabinet body connector is used for being connected with a front window operation opening of the biological safety cabinet, the cover body connector is connected with an air outlet of the air volume cover, and the cabinet body connector is communicated with the cover body connector, so that the requirement of measuring the flow velocity of the air flowing into the air volume cover can be met. The installation clamping plate is connected with the front window operation opening clamping position of the biological safety cabinet, and the air volume cover tool is installed on the biological safety cabinet without being fixed by a sealing adhesive tape. Install the amount of wind cover in biological safety cabinet back, with the air outlet and the butt joint of cover body connector of the amount of wind cover, be fixed in the amount of wind cover frock through the anchor clamps of cover body connector department with the amount of wind cover, and then can accomplish the installation of the amount of wind cover on biological safety cabinet alone in order to realize, reduce the cost of labor, the simple degree of operation installation is high, improves dismouting efficiency, reduces the use of sealed sticky tape, practices thrift the material cost.
Drawings
Fig. 1 is a schematic structural view of an air volume cover of an embodiment of the utility model, which is mounted on a biological safety cabinet through an air volume cover tool.
Fig. 2 is a schematic structural view of an air volume cover tool in the embodiment of the utility model.
Fig. 3 is a schematic side structure view of a connection position of the air volume cover tool and the biosafety cabinet according to the embodiment of the utility model.
In the figure:
10. an air volume cover tool; 11. connecting the cover body; 12. a flow-through chamber;
20. a cabinet body connecting port; 21. an elastic sealing strip; 22. a first elastic sealing strip; 23. a second elastic sealing strip;
30. a cover body connecting port; 31. a fixing frame; 32. a support plate; 33. a clamp; 34. a cover body sealing strip;
40. installing a clamping plate; 41. a glass baffle; 42. a front grid baffle;
50. a front window glass; 51. an air volume cover; 52. a cabinet body; 53. a front grid; 54. a handrail; 55. screens groove.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. used herein are used to indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "connected," "fixed," and the like are used in a broad sense, and for example, the terms "connected," "connected," and "fixed" may be fixed, detachable, or integrated; the connection can be mechanical connection or welding connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 3, an air volume hood tool 10 of a biosafety cabinet according to a preferred embodiment of the present invention includes a connecting hood body 11, the connecting hood body 11 is provided with a circulation cavity 12, the connecting hood body 11 is provided with a cabinet body connector 20 and a hood body connector 30, the cabinet body connector 20 is communicated with the hood body connector 30 through the circulation cavity 12, opposite side surfaces of an edge of the cabinet body connector 20 respectively extend outward to form mounting and clamping plates 40 for clamping with the biosafety cabinet, a clamp 33 for fixing an air volume hood 51 is disposed on an outer wall of the connecting hood body 11, and the clamp 33 is located at one end of the hood body connector 30.
According to the air volume cover tool 10 of the biological safety cabinet, the biological safety cabinet is connected with the air volume cover 51 through the connecting cover body 11, and the connecting cover body 11 is used as a connecting body and is also used as a main supporting component. The cabinet body connecting port 20 is used for being connected with a front window operation port of the biological safety cabinet, the cover body connecting port 30 is connected with an air outlet of the air volume cover 51, and the cabinet body connecting port 20 is communicated with the cover body connecting port 30, so that the requirement of measuring the flow velocity of the air flowing into the air volume cover 51 can be met. The installation clamping plate 40 is connected with the front window operation port clamping position of the biological safety cabinet without being fixed by a sealing adhesive tape, so that the air volume cover tool 10 is installed on the biological safety cabinet. Meanwhile, the air volume hood tool 10 is pressed by the self-gravity of the front window glass 50, so that the installation sealing performance between the front window glass 50 and the air volume hood tool 10 is improved. Install amount of wind cover 51 behind biological safety cabinet, with the air outlet and the butt joint of cover body connector 30 of amount of wind cover 51, be fixed in amount of wind cover frock 10 with amount of wind cover 51 through anchor clamps 33 of cover body connector 30 department, and then can accomplish the installation of amount of wind cover 51 on biological safety cabinet alone in order to realize alone, reduce the cost of labor, the simple degree of operation installation is high, improves dismouting efficiency, reduces the use of sealing adhesive tape, material saving cost.
Specifically, the mounting block plate 40 may be made of a material that is deformable and then restored, such as a conventional soft plastic. And the installation clamping plate 40 is changed to be inserted into the front window operation opening to be clamped and then restored, so that the installation of the air volume cover tool 10 on the biological installation cabinet is completed. Or the installation clamping plate 40 is made of hard material and is fixed on the connecting cover body 11 through the installation clamping plate 40 by screws, when the installation is carried out, the installation clamping plate 40 is firstly clamped at the front window operation opening and then is fixed with the connecting cover body 11 through screws, and then the installation of the air volume cover tool 10 on the biological installation cabinet is completed.
Further, as shown in fig. 1 to 3, the mounting locking plate 40 includes a glass baffle 41 for locking with a front window glass 50 of the biosafety cabinet and a front grid baffle 42 for locking with a front grid 53 of the biosafety cabinet, the glass baffle 41 is located at the upper end of the cabinet body connecting port 20, and the front grid baffle 42 is located at the lower end of the cabinet body connecting port 20. Glass baffle 41 sets up with preceding grid baffle 42 is relative, can satisfy fixed requirement through less joint, further improves the installation convenience to and improve the installation effectiveness.
Further, as shown in fig. 1 and 3, the cabinet connecting port 20 is provided at upper and lower ends thereof with elastic sealing strips 21, respectively. The installation screens board 40 is used for the installation of being connected of amount of wind cover frock 10 and biological safety cabinet, does further fixed the connecting cover body 11 through the elastic sealing strip 21, prevents rocking of the connecting cover body 11, improves the installation stability of amount of wind cover frock 10. Make the periphery of cabinet body connector 20 and the junction of biological safety cabinet sealed simultaneously, because elastic sealing strip 21 has elasticity, consequently utilize the interference fit realization of elastic sealing strip 21 and the junction of biological safety cabinet fixed with sealed, prevent that the air from the external world from getting into in the biological safety cabinet, improve and measure the accuracy, reduce the use of sealing adhesive tape simultaneously, the dismouting of being convenient for.
Preferably, the cabinet connecting port 20 is provided with an elastic weather strip 21 on the outer periphery thereof, so that the sealing performance is better.
Further, as shown in fig. 3, one side of the elastic sealing strip 21 at the upper end of the outer periphery of the cabinet body connecting port 20 abuts against the glass baffle 41, and one side of the elastic sealing strip 21 at the lower end of the outer periphery of the cabinet body connecting port 20 abuts against the front grid baffle 42. Through the setting of elastic sealing strip 21 to guarantee the leakproofness of the X axle direction between amount of wind cover frock 10 and the biological safety cabinet, through glass baffle 41 and the installation of pasting of one side of elastic sealing strip 21, preceding grid baffle 42 and the installation of pasting of one side of elastic sealing strip 21, the leakproofness of the Z axle direction between amount of wind cover frock 10 and the biological safety cabinet.
Further, as shown in fig. 2, the elastic sealing strip 21 at the upper end of the periphery of the cabinet body connecting port 20 is matched with the length of the upper end of the cabinet body connecting port 20, the elastic sealing strip 21 at the lower end of the periphery of the cabinet body connecting port 20 is matched with the length of the lower end of the cabinet body connecting port 20, and the air volume cover tool 10 is sealed with the biosafety cabinet in the Y-axis direction.
Further, as shown in fig. 2 to 3, the connecting cover body 11 is provided with a fixing frame 31 for connecting and fixing with the air volume cover 51, the fixing frame 31 extends outward relative to the connecting cover body 11, the fixing frame 31 is positioned on the outer periphery of the cover body connecting port 30, and the jig 33 is positioned on the outer peripheral edge of the fixing frame 31. The air volume cover 51 and the connecting cover body 11 are more tightly sealed by the fixing frame 31. Meanwhile, the fixing frame 31 also serves as a force supporting point for connecting the air volume cover 51, so that the installation stability of the air volume cover 51 is enhanced.
Preferably, as shown in fig. 3, a cover weather strip 34 is provided on the side of the fixed frame 31 facing the airflow cover 51, and the sealing property between the airflow cover 51 and the fixed frame 31 is improved by the cover weather strip 34. More specifically, the shape of the cover seal 34 matches the shape of the fixing frame 31. The cover seal 34 is a resilient foam seal. Under the pressure of the clamp 33, the cover body sealing strip 34 is extruded and deformed, so that no gap exists at the opening of the air volume cover 51, and the air is prevented from entering, and the detection data is inaccurate.
Further, as shown in fig. 2 to 3, a receiving plate 32 is formed on the bottom surface of the fixed frame 31 so as to protrude from the fixed frame 31. When the air volume cover 51 is installed, the lower end of the air outlet of the air volume cover 51 is placed on the bearing plate 32, so that the installation operation is more convenient, meanwhile, after the installation is completed, the bearing plate 32 has a supporting effect on the air volume cover 51, the phenomenon that the clamp force of the clamp 33 is insufficient and the dislocation is caused due to downward movement is prevented, and the installation stability of the connection of the air volume cover 51 and the air volume cover tool 10 is improved.
Further, as shown in fig. 1 to 3, the clamp 33 includes at least one clamp group including two clamps, and the clamps in the same clamp group are located opposite to each other on the outer periphery of the fixing frame 31. The clips in the same clip group are oppositely arranged, so that the fixing effect of the upper air volume cover 51 and the cover body connecting port 30 is better.
A biosafety cabinet comprises a cabinet body 52, an air volume cover 51 and an air volume cover tool 10, wherein an operation window is arranged on the front surface of the cabinet body 52, a front window glass 50 is installed above the operation window, a front grid 53 and a handrail 54 are arranged at the lower end of the operation window, a clamping groove 55 is formed between the front grid 53 and the handrail 54, a mounting clamping plate 40 at the upper end of the air volume cover tool 10 is installed in the front window glass 50 and is abutted against the front window glass 50, a mounting clamping plate 40 at the lower end of the air volume cover tool 10 is inserted in the clamping groove 55, an air outlet of the air volume cover 51 is abutted against a cover body connecting port 30, and the air volume cover 51 and the cover body connecting port 30 are fixed through a clamp 33.
More specifically, as shown in fig. 1 to 3, the cabinet connector 20 matches with the contour size of the operation window, and the outer contour shape of the cover connector 30 matches with the contour shape of the air outlet of the air volume cover 51. Install in the front window glass 50 and with the installation of front window glass 50 support through installation screens board 40 of the upper end of amount of wind cover frock 10, realize that the screens of the upper end of amount of wind cover frock 10 is located front window glass 50, and installation screens board 40 of the lower extreme of amount of wind cover frock 10 is pegged graft in screens groove 55, realizes that the lower extreme of amount of wind cover frock 10 is pegged graft in screens groove 55, and then realizes the fixed of amount of wind cover frock 10 on the biological safety cabinet, and easy operation is convenient. Cover body connector 30 carries out fixed connection through anchor clamps 33 and amount of wind cover 51, and easy operation is convenient to realize alone can accomplish the installation of amount of wind cover 51 on the biosafety cabinet, reduce the cost of labor, the simple degree of operation installation is high, improves dismouting efficiency, reduces the use of sealed sticky tape, material saving cost.
Further, as shown in fig. 3, a first elastic sealing strip 22 and a second elastic sealing strip 23 are arranged on the periphery of the connecting cover body 11, the upper end face of the first elastic sealing strip 22 abuts against the lower end of the front window glass 50, the lower end face of the first elastic sealing strip 22 abuts against the connecting cover body 11, the lower end face of the second elastic sealing strip 23 abuts against the upper end face of the handrail 54, and the upper end face of the second elastic sealing strip 23 abuts against the connecting cover body 11. Through the setting of first elastic sealing strip 22 and second elastic sealing strip 23, promote the installation degree of stability of amount of wind cover frock 10 on the operation window, prevent that amount of wind cover frock 10 from taking place to rock in the use, simultaneously because the elastic action of elastic sealing strip 21, avoid the production in junction gap, simultaneously can compensate the hourglass wind that leads to because of the processing difference of the profile shape matching degree of amount of wind cover frock 10 and operation window junction, strengthen the leakproofness of amount of wind cover frock 10 and operation window junction, improve the detection data accuracy.
In summary, the embodiment of the present invention provides a biosafety cabinet and an air volume hood tool 10 thereof, wherein the biosafety cabinet is connected with an air volume hood 51 through a connecting hood body 11, and the connecting hood body 11 is used as a connecting body and also used as a main supporting component. The cabinet body connector 20 is used for being connected with a front window operation opening of the biological safety cabinet, the cover body connector 30 is connected with an air outlet of the air volume cover 51, and the cabinet body connector 20 is communicated with the cover body connector 30, so that the requirement of measuring the flow speed of air flowing into the air volume cover 51 can be met. The installation clamping plate 40 is connected with the front window operation opening clamping position of the biological safety cabinet without being fixed by a sealing adhesive tape, so that the air volume cover tool 10 is installed on the biological safety cabinet. Install amount of wind cover 51 behind biological safety cabinet, with the air outlet and the butt joint of cover body connector 30 of amount of wind cover 51, be fixed in amount of wind cover frock 10 with amount of wind cover 51 through anchor clamps 33 of cover body connector 30 department, and then can accomplish the installation of amount of wind cover 51 on biological safety cabinet alone in order to realize alone, reduce the cost of labor, the simple degree of operation installation is high, improves dismouting efficiency, reduces the use of sealing adhesive tape, material saving cost.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides an amount of wind cover frock of biosafety cabinet which characterized in that: including the connecting cover body, the connecting cover body has seted up the circulation chamber, the connecting cover body has seted up cabinet body connector and cover body connector, cabinet body connector passes through the circulation chamber with cover body connector intercommunication, the opposite flank at cabinet body connector edge outwards extends respectively and forms the installation screens board that is used for with biological safety cabinet joint, the connecting cover body outer wall is equipped with the anchor clamps that are used for fixed amount of wind cover, anchor clamps are located the one end of cover body connector.
2. The air volume cover tool of the biosafety cabinet according to claim 1, characterized in that: the installation clamping plate comprises a glass baffle plate and a front grid baffle plate, the glass baffle plate is used for being clamped with the front window glass of the biological safety cabinet, the front grid baffle plate is used for being clamped with the front grid of the biological safety cabinet, the glass baffle plate is located at the upper end of the connecting cover body, and the front grid baffle plate is located at the lower end of the connecting cover body.
3. The air volume hood tool of the biosafety cabinet according to claim 2, characterized in that: and elastic sealing strips are respectively arranged at the upper end and the lower end of the periphery of the cabinet body connecting port.
4. The air volume hood tool of the biosafety cabinet according to claim 3, characterized in that: one side of the elastic sealing strip at the upper end of the periphery of the cabinet body connector abuts against the glass baffle, and one side of the elastic sealing strip at the lower end of the periphery of the cabinet body connector abuts against the front grid baffle.
5. The air volume hood tool of the biosafety cabinet according to claim 4, characterized in that: the elastic sealing strip at the upper end of the periphery of the cabinet body connecting port is matched with the length of the upper end of the cabinet body connecting port, and the elastic sealing strip at the lower end of the periphery of the cabinet body connecting port is matched with the length of the lower end of the cabinet body connecting port.
6. The air volume hood tool of the biosafety cabinet according to claim 1, characterized in that: the connecting cover body is provided with a fixed frame which is used for being connected and fixed with the air volume cover, the fixed frame is relative the connecting cover body extends outwards, the fixed frame is located at the periphery of the cover body connecting port, and the clamp is located at the peripheral edge of the fixed frame.
7. The air volume hood tool of the biosafety cabinet according to claim 6, characterized in that: the bottom surface of the fixed frame is provided with a bearing plate in a protruding way relative to the fixed frame.
8. The air volume hood tool of the biosafety cabinet according to claim 6, characterized in that: the clamp comprises at least one clamp group, and the clamp group comprises two clamps, wherein the clamps in the clamp group are located on the periphery of the fixing frame and are arranged oppositely.
9. A biosafety cabinet is characterized in that: the air volume cover tool comprises a cabinet body, an air volume cover and the air volume cover tool according to any one of claims 1 to 8, wherein an operation window is formed in the front of the cabinet body, a front window glass is mounted above the operation window, a front grid and a handrail are arranged at the lower end of the operation window, a clamping groove is formed between the front grid and the handrail, the mounting clamping plate at the upper end of the air volume cover tool is mounted in the front window glass and is abutted against the front window glass, the mounting clamping plate at the lower end of the air volume cover tool is inserted into the clamping groove, an air outlet of the air volume cover is abutted against the cover body connecting port, and the air volume cover and the cover body connecting port are fixed through the clamp.
10. The biosafety cabinet according to claim 9, wherein: the periphery of the connecting cover body is provided with a first elastic sealing strip and a second elastic sealing strip, the upper end face of the first elastic sealing strip abuts against the lower end of the front window glass, the lower end face of the first elastic sealing strip abuts against the connecting cover body, the lower end face of the second elastic sealing strip abuts against the upper end face of the handrail, and the upper end face of the second elastic sealing strip abuts against the connecting cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123326359.2U CN216728721U (en) | 2021-12-27 | 2021-12-27 | Biological safety cabinet and air volume cover tool thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123326359.2U CN216728721U (en) | 2021-12-27 | 2021-12-27 | Biological safety cabinet and air volume cover tool thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216728721U true CN216728721U (en) | 2022-06-14 |
Family
ID=81939007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123326359.2U Active CN216728721U (en) | 2021-12-27 | 2021-12-27 | Biological safety cabinet and air volume cover tool thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216728721U (en) |
-
2021
- 2021-12-27 CN CN202123326359.2U patent/CN216728721U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216728721U (en) | Biological safety cabinet and air volume cover tool thereof | |
| CN211231986U (en) | Rectangular flange connecting structure | |
| CN211904554U (en) | Tool for testing automobile sealing performance | |
| CN210171069U (en) | Computer room dust remover | |
| CN204240557U (en) | Housing unit and there is its air-conditioning | |
| CN206131283U (en) | Humidifier of high -efficient air conditioner | |
| CN206301275U (en) | A kind of computer dustproof heat radiating fan | |
| CN220655485U (en) | Anti-blocking fan-shaped nozzle of dust collector | |
| CN210613130U (en) | Air pipe not easy to block filter screen | |
| CN207905595U (en) | A kind of detachable aluminium alloy parting bead | |
| CN215397632U (en) | Air suction device for membrane printing | |
| CN206174220U (en) | Formula of cracking aluminum plate nodal connection structure | |
| CN202275348U (en) | Computer case convenient to mount and demount and good in sealing performance | |
| CN217029384U (en) | Observation window of air conditioning equipment fan section | |
| CN217424893U (en) | Vehicle dome lamp constant current air inlet pump suction type particulate matter monitoring gas circuit structure | |
| CN219025229U (en) | Be applied to foil tape dust collector among foil slitting equipment | |
| CN2851938Y (en) | Decorative strip assembly for air conditioner | |
| CN204678652U (en) | Air conditioner room unit and air-conditioner | |
| CN208032135U (en) | A kind of gas filtering structure being easily installed dismounting | |
| CN216594562U (en) | Filter core check out test set | |
| CN210091144U (en) | Infrared electronic whiteboard | |
| CN205017713U (en) | Regulator cubicle is with waterproof dustproof atmospheric pressure balancing unit | |
| CN212499813U (en) | On-vehicle clarifier electrostatic precipitation filter core mounting structure of intelligence | |
| CN217111334U (en) | Heat preservation gas permeability detection device of building door and window | |
| CN217795056U (en) | Access door subassembly and dust remover for dust remover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |