Airflow velocity detection device for biological safety cabinet

Abstract

The utility model discloses a biosafety cabinet airflow velocity detection device, which comprises a detection installation shell and a cabinet body, an air scattering plate is installed in the middle of the interior of the cabinet body, and the right side end of the detection installation shell penetrates through the left side of the cabinet body and is connected with an installation sleeve plate. Two groups of detector assemblies are symmetrically arranged above the two sides of the mounting sleeve plate and located in the cabinet body, each of the two groups of detector assemblies is composed of a sliding supporting column, an extending display board, an airflow detector and a wind speed sensor probe, and a driving motor is mounted on the left side of the interior of the detection mounting shell; the beneficial effects of the utility model are that through an integrated transverse erection installation mode, an automatic movement detection structure and an extrusion type vibration reduction installation protection structure, the dismounting convenience of the device is improved, and the detection range is enlarged, so that the detection effect is improved, the detection stability is improved, the vibration damage is reduced, and the service life is prolonged; and the overall using effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of airflow velocity detection equipment, in particular to an airflow velocity detection device for a biological safety cabinet. Background Art

[0002] The working principle of the biological safety cabinet is mainly to suck the air inside the cabinet outwards to keep the cabinet in a negative pressure state, and to protect the staff through vertical airflow. The outside air is filtered through a high-efficiency air filter before entering the safety cabinet to avoid contamination of the processed samples. The air inside the cabinet also needs to be filtered through a HEPA filter before being discharged into the atmosphere to protect the environment. In order to ensure the safe use of the biological safety cabinet, the internal protective airflow velocity of the biological safety cabinet needs to be regularly tested and calibrated. Therefore, a special biological safety cabinet airflow velocity detection device is required for detection.

[0003] The existing biosafety cabinet airflow velocity detection device still has some problems when in use. First, some of the existing biosafety cabinet airflow velocity detection devices directly fix the airflow velocity detection device at the flow rate port inside the biosafety cabinet and perform automatic real-time detection. This installation and detection method is inconvenient when it needs to be disassembled, repaired or replaced, and the fixed detection makes the detection range smaller and the detection effect is also lower. Secondly, since the airflow constantly impacts the detection device and the instrument device during operation, it is easy to vibrate, so the installation point of the device and the cabinet is prone to wear, which not only reduces the stability of the detection, but also reduces the service life of the device, and overall reduces the use effect of the device. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted in this utility model is:

[0006] The airflow velocity detection device of the biological safety cabinet comprises a detection installation shell and a cabinet body, wherein a wind dispersion plate is installed in the middle part of the interior of the cabinet body, the right end of the detection installation shell body passes through the left side of the cabinet body and is connected with a mounting sleeve plate, and two groups of detector components are symmetrically arranged inside the cabinet body above the two sides of the mounting sleeve plate, and the two groups of detector components are respectively composed of a sliding support column, an extension display plate, an airflow detector and a wind speed sensor probe, a driving motor is installed on the left side of the interior of the detection installation shell body, and the output end of the driving motor is transmission-connected with a transmission shaft, and the right end of the transmission shaft is located inside the mounting sleeve plate and is connected with a bidirectional threaded rotating rod, the right end of the mounting sleeve plate is connected with a mounting frame plate embedded in the right side of the cabinet body, and the right end of the mounting frame plate is threadedly embedded with a fixed clamping plate that fits the right side wall of the cabinet body, and the outer side edge of the detection installation shell body is symmetrically arranged on the left side of the cabinet body, and the multiple groups of extrusion installation protection components are respectively composed of a connecting top column, a first top plate, a second top plate, an extrusion adsorption rubber disc, a spring and an arc gasket.

[0007] In a preferred example, the present invention can be further configured as follows:

[0008] By adopting the above technical solution, a movable through hole is opened at the top of the mounting sleeve, a sliding groove is opened on the inner bottom side of the mounting sleeve, the bottom end of the sliding support column is slidably connected to the inner side of the sliding groove, and the top end of the sliding support column passes through and moves between the movable through holes.

[0009] In a preferred example, the present invention can be further configured as follows:

[0010] By adopting the above technical solution, the sliding support column is threadedly sleeved on the outer side surfaces on both sides of the bidirectional threaded rotating rod, the rear bottom end of the extended display panel is connected to the top of the sliding support column, the airflow detector is installed on the front top of the extended display panel, and the wind speed sensor probe is rotatably connected to the top of the airflow detector, and the two groups of the extrusion-mounted protective components are both located at the bottom of the wind dispersion plate.

[0011] In a preferred example, the present invention can be further configured as follows:

[0012] By adopting the above technical solution, a sealing protection pad is embedded and installed between the outer side of the detection installation shell and the inner side of the installation frame plate close to the cabinet, and an installation sliding cavity is opened inside the detection installation shell close to the cabinet.

[0013] In a preferred example, the present invention can be further configured as follows:

[0014] By adopting the above technical solution, the first top plate and the second top plate are both slidably connected to the inside of the installation sliding cavity, and the spring is installed between the first top plate and the second top plate.

[0015] In a preferred example, the present invention can be further configured as follows:

[0016] By adopting the above technical solution, one end of the connecting top column is connected to the arc-shaped gasket, and the other end is located inside the mounting slide cavity and connected to the first top plate. One end of the extruded adsorption rubber disc is in contact with the sealing protection pad, and the other end is located inside the mounting slide cavity and connected to the second top plate. One end face of the arc-shaped gasket is close to the outer side face of the transmission shaft.

[0017] In a preferred example, the present invention can be further configured as follows:

[0018] By adopting the above technical solution, a handle is symmetrically installed on the left end surface of the detection installation shell, and an information transmitter is installed on the left end surface of the detection installation shell inside the handle.

[0019] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0020] 1. In the utility model, an installation sleeve, an installation frame, a fixed clamping plate, an extrusion installation protection component and a detector component are provided. When in use, the installation sleeve is installed through the inside of the cabinet through the detection installation shell and the installation frame, so that the fixed clamping plate and the detection installation shell are respectively clamped with the two sides of the cabinet, and at the same time, the elastic extrusion structure in the extrusion installation protection component also squeezes and fixes the fixed clamping plate. After the installation is completed, the bidirectional threaded rotating rod is rotated by the driving mechanism, so that the two groups of detector components move horizontally at the bottom of the air dispersion plate to detect different positions. This not only improves the convenience of disassembly and assembly, but also increases the detection range and improves the detection effect of the device.

[0021] 2. In the utility model, an extrusion installation protection component and a sealing protection pad are provided. When in use, when the internal mechanisms are operating and the air dispersion plate generates airflow, the device as a whole vibrates. When the detection installation shell vibrates, the elastic extrusion structure of each component in the extrusion installation protection component plays a vibration reduction role. At the same time, the sealing protection pad also protects the connection between the mounting frame and the detection installation shell and the cabinet. This not only improves the stability of the detection, but also reduces damage, increases the service life, and improves the overall use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view and cross-sectional schematic diagram of the internal structure of an embodiment of the utility model;

[0023] Figure 2 A side view of the internal structure of an embodiment of the utility model;

[0024] Figure 3 A is a schematic structural diagram of an embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the local structure of the detection installation shell of an embodiment of the utility model.

[0026] Reference numerals:

[0027] 1. Detection and installation shell; 2. Cabinet; 3. Air dispersion plate; 4. Detector assembly; 401. Sliding support column; 402. Extension display board; 403. Air flow detector; 404. Wind speed sensor probe; 5. Extrusion installation protection assembly; 501. Connecting top column; 502. First top plate; 503. Second top plate; 504. Extrusion adsorption rubber disc; 505. Spring; 506. Arc gasket; 6. Driving motor; 7. Transmission shaft; 8. Handle; 9. Sealing protection pad; 10. Fixed clamping plate; 11. Installation sleeve; 12. Bidirectional threaded rotating rod; 13. Installation frame plate; 14. Moving through hole; 15. Slide groove; 16. Installation slide cavity; 17. Information transmitter. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0029] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0030] The following describes an air flow velocity detection device for a biosafety cabinet provided by some embodiments of the present utility model in conjunction with the accompanying drawings.

[0031] Embodiment 1:

[0032] Combination Figure 1-Figure 4 As shown, the biosafety cabinet airflow velocity detection device provided by the utility model,

[0033] Specifically, it includes a detection installation shell 1 and a cabinet 2, a diffuser plate 3 is installed in the middle of the interior of the cabinet 2, the right end of the detection installation shell 1 passes through the left side of the cabinet 2 and is connected to a mounting plate 11, and two groups of detector components 4 are symmetrically arranged above both sides of the mounting plate 11 and located inside the cabinet 2. The two groups of detector components 4 are respectively composed of a sliding support column 401, an extension display plate 402, an airflow detector 403 and a wind speed sensor probe 404. The extension display plate 402 is mainly used to install the airflow detector 403 and the wind speed sensor probe 404 at the front end of the mounting plate 11 to prevent the flow of the airflow of the diffuser plate 3 from being blocked by the mounting plate 11, which affects the flow rate detection. A driving motor 6 is installed on the left side of the cabinet 1, and the output end of the driving motor 6 is connected to a driving shaft 7. The right end of the driving shaft 7 is located inside the mounting sleeve 11 and is connected to a bidirectional threaded rotating rod 12. The right end of the mounting sleeve 11 is connected to a mounting frame plate 13 embedded in the right side of the cabinet 2. The right end of the mounting frame plate 13 is threadedly embedded with a fixed clamping plate 10 that fits the right side wall of the cabinet 2. The outer side of the detection installation shell 1 is embedded in the left side of the cabinet 2 and symmetrically provided with multiple groups of extrusion installation protection components 5. The multiple groups of extrusion installation protection components 5 are respectively composed of a connecting top column 501, a first top plate 502, a second top plate 503, an extrusion adsorption rubber disc 504, and a spring 505. and an arc-shaped gasket 506. A movable through hole 14 is provided at the top of the mounting plate 11. The movable through hole 14 is mainly used to facilitate the movement of the sliding support column 401. A slide groove 15 is provided on the inner bottom side of the mounting plate 11. The slide groove 15 is mainly used to stabilize and limit the movement of the sliding support column 401. The bottom end of the sliding support column 401 is slidably connected to the inner side of the slide groove 15, and the top end of the sliding support column 401 passes through and moves between the movable through hole 14. The sliding support column 401 is threadedly sleeved on the outer side surfaces of both sides of the bidirectional threaded rotating rod 12. The rear bottom end of the extended display panel 402 is connected to the top of the sliding support column 401. The airflow detector 403 is installed on the extended display panel 4 02, the wind speed sensor probe 404 is rotatably connected to the top of the airflow detector 403, and the two groups of extrusion-mounted protective components 5 are both located at the bottom of the air dispersion plate 3. The use of the above-mentioned components and mechanisms makes it possible to remove the fixed clamping plate 10, and at the same time, sequentially move the mounting sleeve 11 out or install it inside the cabinet 2 through the detection and mounting shell 1 and the mounting frame plate 13, and complete the overall fixed installation of the device through the extrusion fixing method of multiple groups of extrusion-mounted protective components 5, and automatically drive the airflow detector 403 and the wind speed sensor probe 404 to move through the driving mechanism, so that the detection range is increased, which not only improves the convenience of disassembly and assembly, but also improves the detection effect.

[0034] Embodiment 2:

[0035] Combination Figure 1 , Figure 3 and Figure 4 As shown, based on the first embodiment,

[0036] Specifically, a sealing protection pad 9 is embedded and installed between the outer sides of the detection installation shell 1 and the installation frame plate 13 near the inner side of the cabinet 2, and an installation slide cavity 16 is opened inside the detection installation shell 1 near the cabinet 2. The installation slide cavity 16 is mainly used to facilitate the connection and installation of the first top plate 502, the second top plate 503 and the spring 505, and at the same time, it plays a role in limiting the movement of the first top plate 502 and the second top plate 503. The first top plate 502 and the second top plate 503 are both slidably connected to the inside of the installation slide cavity 16, and the spring 505 is installed between the first top plate 502 and the second top plate 503. One end of the connecting top column 501 is connected to the arc-shaped gasket 506. The other end is located inside the mounting slide cavity 16 and connected to the first top plate 502, one end of the extruded adsorption rubber disc 504 is in contact with the sealing protection pad 9, and the other end is located inside the mounting slide cavity 16 and connected to the second top plate 503, and one end face of the arc-shaped gasket 506 is close to the outer side face of the transmission shaft 7. The use of the above-mentioned components includes the first embodiment, especially when the detection device is used as a whole and the air dispersion plate 3 generates airflow, the device vibrates as a whole, and the various elastic extrusion vibration components in the extruded mounting protection assembly 5, including the sealing protection pad 9, play a role in stabilizing the vibration pressure reduction, thereby improving the stability of the detection, reducing mutual wear and damage, and increasing the service life.

[0037] Combination Figure 1 and Figure 4 As shown, in the above embodiment,

[0038] Specifically, a handle 8 is symmetrically installed on the left end surface of the detection installation shell 1. The handle 8 is mainly used to facilitate pulling the detection installation shell 1 for easy installation and disassembly. An information transmitter 17 is installed on the inner side of the handle 8 on the left end surface of the detection installation shell 1. The information transmitter 17 is mainly used to transmit the detection data to an external information receiving mechanism in real time.

[0039] The working principle and use process of the utility model are as follows: first, when disassembly and assembly are required, the installation sleeve 11 is installed through the inside of the cabinet 2 through the detection installation shell 1 and the installation frame plate 13, and the detection installation shell 1 is clamped with the cabinet 2 through the fixed clamping plate 10 and the detection installation shell 1. At the same time, the elastic extrusion setting of the extrusion adsorption rubber disc 504 and the spring 505 composed of the extrusion installation protection component 5 on the detection installation shell 1 is used to squeeze and fix the detection installation shell 1 and the embedded installation position of the cabinet 2. After the installation is completed, when inspection is required, the driving motor inside the detection installation shell 1 is turned on to make the transmission shaft 7 rotate and drive the bidirectional threaded rotating rod 12 located in the installation sleeve 11 to rotate, so that the sliding support column 401 composed of the two groups of detector components 4 moves along the slide groove 15 and drives the airflow detector 403 and the wind speed sensor on the top of the extension display panel 402. The probe 404 of the detector moves laterally to different positions of the air flow at the bottom of the air dispersion plate 3, which not only improves the convenience of disassembly and assembly, but also increases the detection range and the detection effect of the device. Secondly, during use, when the internal mechanisms are operating and the air dispersion plate 3 generates airflow, the device as a whole vibrates, causing the detection installation shell 1 to vibrate. In this way, the spring 505, the connecting top column 501, the arc gasket 506 and the extrusion adsorption rubber disc 504 composed of the extrusion installation protection component 5 are elastically squeezed against each other to play a vibration reduction role, especially the arc gasket 506 reduces the driving vibration force generated at the transmission shaft 7 to a certain extent. At the same time, the sealing protection pad 9 also protects the connection between the mounting frame 13 and the detection installation shell 1 and the cabinet 2. This not only improves the stability of the detection, but also reduces damage, increases the service life, and improves the overall use effect of the device.

[0040] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A biosafety cabinet airflow velocity detection device, comprising a detection installation housing (1) and a cabinet (2), wherein a wind dispersion plate (3) is installed in the middle of the interior of the cabinet (2), characterized in that: The right side end of the detection installation shell (1) passes through the left side of the cabinet (2) and is connected to a mounting plate (11). Two groups of detector components (4) are symmetrically arranged above both sides of the mounting plate (11) and located inside the cabinet (2). The two groups of detector components (4) are respectively composed of a sliding support column (401), an extension display plate (402), an airflow detector (403) and a wind speed sensor probe (404). A driving motor (6) is installed on the left side inside the detection installation shell (1). The output end of the driving motor (6) is transmission-connected to a transmission shaft (7). The right end of the transmission shaft (7) is located inside the mounting plate (11) and is connected to the transmission shaft (7). A bidirectional threaded rotating rod (12) is connected, the right end of the mounting sleeve (11) is connected to a mounting frame plate (13) embedded in the right side of the cabinet (2), the right end of the mounting frame plate (13) is threadedly embedded with a fixed clamping plate (10) that fits the right side wall of the cabinet (2), and the outer side edge of the detection mounting shell (1) is embedded in the left side of the cabinet (2) and symmetrically provided with multiple groups of extrusion mounting protection components (5), and the multiple groups of extrusion mounting protection components (5) are respectively composed of a connecting top column (501), a first top plate (502), a second top plate (503), an extrusion adsorption rubber disc (504), a spring (505) and an arc-shaped gasket (506).

2. The biosafety cabinet airflow velocity detection device according to claim 1, characterized in that: The top of the installation sleeve (11) is provided with a movable through hole (14), the inner bottom side of the installation sleeve (11) is provided with a slide groove (15), the bottom end of the sliding support column (401) is slidably connected to the inner side of the slide groove (15), and the top end of the sliding support column (401) passes through and moves between the movable through holes (14).

3. The biosafety cabinet airflow velocity detection device according to claim 1, characterized in that: The sliding support column (401) is threadedly sleeved on the outer side surfaces of both sides of the bidirectional threaded rotating rod (12); the rear bottom end of the extended display plate (402) is connected to the top end of the sliding support column (401); the airflow detector (403) is installed on the front top end of the extended display plate (402); the wind speed sensor probe (404) is rotatably connected to the top end of the airflow detector (403); and the two groups of the extrusion-mounted protective components (5) are both located at the bottom of the air dispersion plate (3).

4. The biosafety cabinet airflow velocity detection device according to claim 1, characterized in that: A sealing protection pad (9) is embedded and installed between the outer sides of the detection installation shell (1) and the installation frame plate (13) close to the inner side of the cabinet (2), and an installation sliding cavity (16) is opened inside the detection installation shell (1) close to the cabinet (2).

5. The biosafety cabinet airflow velocity detection device according to claim 4, characterized in that: The first top plate (502) and the second top plate (503) are both slidably connected to the interior of the installation sliding cavity (16), and the spring (505) is installed between the first top plate (502) and the second top plate (503).

6. The biosafety cabinet airflow velocity detection device according to claim 4, characterized in that: One end of the connecting top column (501) is connected to the arc-shaped gasket (506), and the other end is located inside the mounting slide cavity (16) and connected to the first top plate (502); one end of the extruded adsorption rubber disc (504) is in contact with the sealing protection pad (9), and the other end is located inside the mounting slide cavity (16) and connected to the second top plate (503); one end face of the arc-shaped gasket (506) is close to the outer side face of the transmission shaft (7).

7. The biosafety cabinet airflow velocity detection device according to claim 1, characterized in that: A handle (8) is symmetrically mounted on the left end surface of the detection installation shell (1), and an information transmitter (17) is mounted on the left end surface of the detection installation shell (1) inside the handle (8).

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