Biosafety cabinet with fixing device

Abstract

The utility model discloses a biological safety cabinet with a fixing device, and relates to the technical field of biological safety cabinets. The biological safety cabinet comprises a biological safety cabinet body, a baffle is hinged to the side face of the biological safety cabinet body, a dustproof net is fixedly connected to the top of the biological safety cabinet body, a fixing plate is fixedly connected to the inner wall of the biological safety cabinet body, and a wind speed sensor is fixedly connected to the top of the fixing plate. A U-shaped fixing plate is fixedly connected to the top of the fixing plate, a fixing rod is fixedly connected to the top of the U-shaped fixing plate, and a butterfly nut is fixedly connected to the inner wall of the biosafety cabinet body. According to the utility model, the butterfly nut is locked at a proper height position through the matching of the butterfly nut and the pipe connecting opening, so that the noise of the air duct is reduced, and then the pipe connecting opening behind the butterfly nut and an outer row efficient connecting position are connected with each other through the silica gel hose, so that the noise is reduced, and the sealing performance of the air duct is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biological safety cabinets, in particular to a biological safety cabinet with a fixing device. Background Art

[0002] The biological safety cabinet is designed to protect the operator, the laboratory environment and the experimental materials when operating infectious experimental materials such as primary cultures, bacterial strains and diagnostic specimens, so as to avoid exposure to infectious aerosols and splashes that may be generated during the above operations.

[0003] Patent announcement number CN212550947U discloses a biological safety cabinet, including a purification chamber and a working chamber; a partition is provided in the middle of the purification chamber, and the partition divides the purification chamber into a left chamber and a right chamber; the right chamber is provided with a high-volume fan; the high-volume fan is installed on the partition; the top wall of the purification chamber is a laminar air outlet plate, and the laminar air outlet plate is a micro-mesh design; the top of the working chamber is provided with a high-efficiency filter. The utility model provides a biological safety cabinet, which has no dead angle for gas flow, more uniform wind speed flow, and a small wind speed fluctuation range.

[0004] However, the current biosafety cabinet has the following problems: it is difficult to reduce the noise of the air duct. Therefore, we propose a biosafety cabinet with a fixing device. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a biological safety cabinet with a fixing device, which solves the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a biological safety cabinet with a fixing device, comprising a biological safety cabinet body, a baffle hinged on the side of the biological safety cabinet body, a dust screen fixedly connected to the top of the biological safety cabinet body, a fixing plate fixedly connected to the inner wall of the biological safety cabinet body, a wind speed sensor fixedly connected to the top of the fixing plate, a U-shaped fixing plate fixedly connected to the top of the U-shaped fixing plate, a fixing rod fixedly connected to the top of the U-shaped fixing plate, a butterfly nut fixedly connected to the inner wall of the biological safety cabinet body, The outer wall of the butterfly nut is fixedly connected with a mounting block, a notch is provided at the bottom of the mounting block, a pipe connection port is provided on the inner wall of the butterfly nut, the circumferential surface of the fixing rod is in contact with the inner wall of the notch, two U-shaped fixing plates are provided, and they are symmetrical to each other along the central axis of the fixing plate, two butterfly nuts are provided, and they are symmetrical to each other along the central axis of the fixing plate, two mounting ports are provided on one side where the mounting block is fixed to the butterfly nut, the butterfly nut is locked at an appropriate height to reduce the noise of the air duct, and then the pipe connection port behind the butterfly nut is placed in a position for efficient external connection.

[0007] The utility model provides a biological safety cabinet with a fixing device. It has the following beneficial effects:

[0008] (1) The utility model locks the butterfly nut at an appropriate height through the cooperation of the butterfly nut and the pipe port, thereby reducing the noise of the air duct. Then, the pipe port behind the butterfly nut and the position of the external high-efficiency connection are connected to each other with a silicone hose, thereby reducing noise and increasing the sealing of the air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A schematic diagram of the utility model as a whole;

[0010] Figure 2 This is an enlarged schematic diagram of the structure of the wind speed sensor of the utility model;

[0011] Figure 3 It is an enlarged schematic diagram of the structure of the butterfly nut of the utility model;

[0012] Figure 4 It is an enlarged schematic diagram of the structure of the fixing rod of the utility model.

[0013] In the figure: 1. Biosafety cabinet body; 2. Dust screen; 3. Baffle; 4. Fixing plate; 5. Wind speed sensor; 6. U-shaped fixing plate; 7. Butterfly nut; 8. Mounting block; 9. Fixing rod; 10. Notch; 11. Pipe connection port. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0015] See also Figure 1-4An embodiment of the utility model is: a biological safety cabinet with a fixing device, comprising a biological safety cabinet body 1, a baffle 3 is hinged on the side of the biological safety cabinet body 1, a dustproof net 2 is fixedly connected to the top of the biological safety cabinet body 1, a fixing plate 4 is fixedly connected to the inner wall of the biological safety cabinet body 1, a wind speed sensor 5 is fixedly connected to the top of the fixing plate 4, a U-shaped fixing plate 6 is fixedly connected to the top of the fixing plate 4, a fixing rod 9 is fixedly connected to the top of the U-shaped fixing plate 6, a butterfly nut 7 is fixedly connected to the inner wall of the biological safety cabinet body 1, and a fixing rod 9 is fixedly connected to the outer wall of the butterfly nut 7 A mounting block 8 is provided with a notch 10 at the bottom thereof, a pipe connection port 11 is provided on the inner wall of the butterfly nut 7, a circumferential surface of the fixing rod 9 contacts the inner wall of the notch 10, two U-shaped fixing plates 6 are provided, and are symmetrical to each other along the central axis of the fixing plate 4, two butterfly nuts 7 are provided, and are symmetrical to each other along the central axis of the fixing plate 4, and two mounting ports are provided on one side where the mounting block 8 and the butterfly nut 7 are fixed. Through the arrangement of the above-mentioned structure, the pipe connection port 11 behind the butterfly nut 7 and the position of the external efficient connection are connected to each other using silicone hoses to reduce noise and increase the sealing of the air duct.

[0016] When in use, the butterfly nut 7 is locked at an appropriate height to reduce the noise of the air duct, and then the pipe port 11 behind the butterfly nut 7 and the position of the external efficient connection are connected to each other with a silicone hose to reduce noise and increase the sealing of the air duct.

[0017] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A biological safety cabinet with a fixing device, comprising a biological safety cabinet body (1), characterized in that: A baffle (3) is hingedly connected to the side of the biological safety cabinet body (1); a dust screen (2) is fixedly connected to the top of the biological safety cabinet body (1); a fixing plate (4) is fixedly connected to the inner wall of the biological safety cabinet body (1); a wind speed sensor (5) is fixedly connected to the top of the fixing plate (4); a U-shaped fixing plate (6) is fixedly connected to the top of the fixing plate (4); a fixing rod (9) is fixedly connected to the top of the U-shaped fixing plate (6); a butterfly nut (7) is fixedly connected to the inner wall of the biological safety cabinet body (1); a mounting block (8) is fixedly connected to the outer wall of the butterfly nut (7); a notch (10) is provided at the bottom of the mounting block (8); and a pipe connection port (11) is provided on the inner wall of the butterfly nut (7).

2. A biological safety cabinet with a fixing device according to claim 1, characterized in that: The circumferential surface of the fixing rod (9) contacts the inner wall of the notch (10).

3. A biological safety cabinet with a fixing device according to claim 2, characterized in that: Two U-shaped fixing plates (6) are provided and are symmetrical to each other along the central axis of the fixing plate (4).

4. A biological safety cabinet with a fixing device according to claim 3, characterized in that: Two butterfly nuts (7) are provided and are symmetrical to each other along the central axis of the fixing plate (4).

5. A biological safety cabinet with a fixing device according to claim 4, characterized in that: Two installation openings are provided on one side of the installation block (8) where the butterfly nut (7) is fixed.

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