Movable air draft device for physical, chemical and biological laboratory

Abstract

The utility model discloses a movable air draft device for a physical, chemical and biological laboratory. The movable air draft device comprises an air draft pipe and a fan, the movable adjusting device is positioned on one side of an exhaust opening of the exhaust pipe; the movable adjusting device comprises a mounting disc, a fixing part and movable fan blades, the fixing part is connected to the inner wall of the mounting disc, the center of the fixing part and the mounting disc are concentrically arranged, a rotating shaft is rotationally arranged between the periphery of the fixing part and the inner wall of the mounting disc, and the movable fan blades are rotationally arranged in the mounting disc through the rotating shaft; the adjacent movable fan blades are in contact with each other; the environment detection device is used for detecting a laboratory environment; the environment detection device is installed on the fixing piece and used for detecting environment information of the laboratory and feeding back the environment information to control a switch of the draught fan. The utility model belongs to the technical field of laboratory ventilation equipment, and particularly provides a movable air draft device for a physical, chemical and biological laboratory, which is used for realizing a movable air draft effect and solving the problem that the air draft is not flexible enough in the prior art.

Description

Technical Field

[0001] The utility model belongs to the technical field of laboratory ventilation equipment, and specifically refers to a movable air extraction device for physical, chemical and biological laboratories. Background Art

[0002] At present, dangerous chemical gases are generated during chemical experiments in chemical laboratories, and the existing treatment methods are to use exhaust fans to extract them to prevent dangerous events such as explosions from occurring during experiments in chemical laboratories. The existing exhaust air extraction devices for physical, chemical and biological laboratories only extract and discharge the gases from the laboratory to prevent toxic gases from remaining in the laboratory.

[0003] However, the existing technology cannot achieve the effect of flexible and movable air extraction, that is, the fan works regardless of whether toxic gases are generated or not, which is a waste of resources. Summary of the Utility Model

[0004] The utility model provides a movable air extraction device for physical, chemical and biological laboratories, which is used to achieve the effect of movable air extraction and solve the problem of inflexible air extraction in the existing technology.

[0005] The technical solution adopted by this application is as follows:

[0006] It includes an air extraction pipe and a fan sealed at one end of the air extraction pipe;

[0007] And a movable adjustment device located on one side of the air extraction port of the air extraction pipe;

[0008] The movable adjustment device includes a mounting plate, a fixing member and movable fan blades. The mounting plate is provided with a flange plate, and the mounting plate is flange-connected to the air extraction pipe. The fixing member is connected and arranged on the inner wall of the mounting plate and is concentric with the mounting plate at the center. A rotating shaft is rotatably arranged between the outer circumference of the fixing member and the inner wall of the mounting plate in a circumferentially arrayed manner. The movable fan blades are rotatably arranged in the mounting plate through the rotating shafts, and adjacent movable fan blades are in contact with each other;

[0009] It also includes an environmental detection device for detecting the laboratory environment; the environmental detection device is installed on the fixing member and is used to detect the environmental information of the laboratory and feedback to control the switch of the fan.

[0010] As a further elaborated solution, the environmental detection device includes a gas sensor, a communicator and a processor. The gas sensor, the communicator and the processor are installed at the center of the fixing member. The gas sensor and the communicator are both connected to the processor, and the processor controls the working state of the fan through the communicator.

[0011] Preferably, a driving assembly for driving the rotating shaft to rotate is installed on the mounting disc. The driving assembly includes a driving rod and a connecting rod. One end of the driving rod is hinged to the outer end of the rotating shaft with respect to the mounting disc. A connecting rod is hinged between adjacent driving rods, and adjacent connecting rods are arranged vertically staggered.

[0012] Preferably, a bearing is provided between the rotating shaft and the mounting disc to achieve the rotation effect.

[0013] As a preferred solution, the driving assembly further includes a driving motor. A motor seat is provided on one side of the mounting disc. The driving motor is installed on the motor seat, and the output shaft of the driving motor is connected to a group of the rotating shafts to achieve the driving effect.

[0014] Preferably, the fixing member includes a support rod and a shaft disc. The support rod is arranged in a T shape and installed on the inner wall of the mounting disc. Three groups of support rods are arranged in a circumferential array. The shaft disc is connected to the center of the three groups of support rods. A shaft hole for the rotation of the rotating shaft is opened on the shaft disc. The shaft hole and the support rod are at different horizontal heights.

[0015] Preferably, the driving motor is connected to the processor, and the processor controls the operation of the driving motor.

[0016] The beneficial effects achieved by the present utility model with the above structure are as follows:

[0017] 1. Through the setting of the movable adjustment device, the effect of movable air extraction is realized, solving the problem of inflexible air extraction in the prior art. Under the action of the connecting rod, the fan blade rotates with the rotation of the driving motor, thereby adjusting the amount of extracted air, and it is flexible to use.

[0018] 2. Through the setting of the environmental monitoring device, the effect of driving after detection is realized, avoiding waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of a movable air extraction device for a physics, chemistry and biology laboratory provided by this solution;

[0020] Figure 2 is Figure 1 the partial enlarged schematic diagram of part A in

[0021] Figure 3 is the structural schematic diagram of the fixing member in this solution;

[0022] Figure 4 is Figure 1 the top view of

[0023] Figure 5 is Figure 1 the cross-sectional view of

[0024] The meanings of the reference numerals in the drawings are as follows:

[0025] 1. Active adjustment device, 2. Installation disk, 3. Fixing piece, 4. Movable fan blade, 5. Flange plate, 6. Rotating shaft, 7. Environment detection device, 8. Gas sensor, 9. Communicator, 10. Processor, 11. Driving component, 12. Driving rod, 13. Connecting rod, 14. Bearing, 15. Motor base, 16. Support rod, 17. Shaft disk, 18. Shaft hole. Specific implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention.

[0027] Embodiment 1

[0028] Please refer to Figures 1-5 As shown, this embodiment provides a movable exhaust device for physical, chemical and biological laboratories, including an exhaust pipe and a fan.

[0029] It further includes an active adjustment device 1 on one side of the air extraction port of the exhaust pipe; the active adjustment device 1 includes an installation disk 2, a fixing piece 3 and a movable fan blade 4. A flange plate 5 is provided on the installation disk 2. The installation disk 2 is flange-connected to the exhaust pipe. The fixing piece 3 is connected to the inner wall of the installation disk 2 and is concentric with the installation disk 2 at the center. A circumferentially arrayed rotating shaft 6 is rotatably provided between the outer periphery of the fixing piece 3 and the inner wall of the installation disk 2. The movable fan blade 4 is rotatably arranged in the installation disk 2 through the rotating shaft 6, and adjacent movable fan blades 4 are in contact with each other.

[0030] It further includes an environment detection device 7 for detecting the laboratory environment; the environment detection device 7 is installed on the fixing piece 3 and is used for detecting the environmental information of the laboratory and feeding back to control the switch of the fan.

[0031] Among them, the environment detection device 7 includes a gas sensor 8, a communicator 9 and a processor 10. The gas sensor 8, the communicator 9 and the processor 10 are installed at the center of the fixing piece 3. The gas sensor 8 and the communicator 9 are both connected to the processor 10, and the processor 10 controls the working state of the fan through the communicator 9.

[0032] Preferably: A driving component 11 for driving the rotation of the rotating shaft 6 is installed on the installation disk 2. The driving component 11 includes a driving rod 12 and a connecting rod 13. One end of the driving rod 12 is hinged to the outer end of the rotating shaft 6 with respect to the installation disk 2. A connecting rod 13 is hinged between adjacent driving rods 12, and adjacent connecting rods 13 are arranged in a staggered manner up and down. A bearing 14 is provided between the rotating shaft 6 and the installation disk 2 to achieve the rotation effect.

[0033] As a preferred solution, the driving assembly 11 further includes a driving motor. One side of the mounting plate 2 is provided with a motor base 15. The driving motor is arranged on the motor base 15. The output shaft of the driving motor is connected to a group of rotating shafts 6 to achieve the driving effect. The driving motor is connected to the processor 10, and the processor 10 controls the operation of the driving motor.

[0034] Preferably, the fixing member 3 includes a support rod and a shaft disc. The support rod is arranged in a T shape and is installed on the inner wall of the mounting plate 2. Three groups of support rods are arranged in a circumferential array. The shaft disc is connected to the center of the three groups of support rods. A shaft hole for the rotation of the rotating shaft 6 is provided on the shaft disc. The shaft hole and the support rod are at different horizontal heights.

[0035] When using the present utility model, through the setting of the movable adjusting device 1, the effect of movable air extraction is realized, and the problem of inflexible air extraction in the prior art is solved. Under the action of the connecting rod 13, the fan blade rotates with the rotation of the driving motor. The driving motor drives the rotating shaft 6 to rotate, and the rotating shaft 6 drives the driving rod 12 to rotate. Under the action of the connecting rod 13, the transmission of force between adjacent parts is realized, so as to adjust the angle of the fan blade, and thus adjust the size of the air extraction volume, and the use is flexible.

[0036] Through the setting of the environmental monitoring device, the environmental detection device 7 is installed on the fixing member 3, which is used to detect the environmental information of the laboratory and feedback to control the switches of the fan and the driving motor, realizing the effect of driving the air extraction work after detection and avoiding the waste of resources.

[0037] It should be noted that although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, without departing from the spirit of the present utility model, structures and embodiments similar to the technical solution designed without creativity should all belong to the protection scope of the present utility model.

Claims

1. A movable exhaust device for a physical, chemical and biological laboratory, comprising an exhaust pipe and a fan sealed at one end of the exhaust pipe, characterized in that: It also includes a movable adjustment device located on one side of the air outlet of the air exhaust pipe; The movable adjustment device comprises a mounting plate, a fixing part and movable blades, the mounting plate is provided with a flange plate, the mounting plate is connected to the exhaust pipe flange, the fixing part is connected to the inner wall of the mounting plate and is concentrically arranged with the mounting plate at the center, a rotating shaft distributed in a circumferential array is rotatably arranged between the outer periphery of the fixing part and the inner wall of the mounting plate, the movable blades are rotatably arranged in the mounting plate through the rotating shaft, and adjacent movable blades are in contact with each other; It also includes an environment detection device for detecting the laboratory environment; the environment detection device is installed on the fixing member and is used to detect the environmental information of the laboratory and provide feedback to control the switch of the fan.

2. The active exhaust device for physical, chemical and biological laboratories according to claim 1, characterized in that: The environmental detection device includes a gas sensor, a communicator and a processor. The gas sensor, the communicator and the processor are installed at the center of the fixing part. The gas sensor and the communicator are connected to the processor. The processor controls the working state of the fan through the communicator.

3. The active exhaust device for physical, chemical and biological laboratories according to claim 2, characterized in that: A driving assembly for driving the rotating shaft to rotate is installed on the mounting plate, and the driving assembly includes a driving rod and a connecting rod. One end of the driving rod is hinged to the outer end of the rotating shaft relative to the mounting plate, and connecting rods are hinged between adjacent driving rods, and adjacent connecting rods are staggered up and down.

4. The active exhaust device for physical, chemical and biological laboratories according to claim 1, characterized in that: A bearing is arranged between the rotating shaft and the mounting plate.

5. The movable exhaust device for physical, chemical and biological laboratories according to claim 3, characterized in that: The driving assembly also includes a driving motor. A motor seat is provided on one side of the mounting plate. The driving motor is arranged on the motor seat. The output shaft of the driving motor is connected to a group of the rotating shafts.

6. The active exhaust device for physical, chemical and biological laboratories according to claim 1, characterized in that: The fixing member includes a support rod and an axle disc. The support rod is T-shaped and installed on the inner wall of the installation disc. The support rods are arranged in three groups in a circular array. The axle disc is connected at the center of the three groups of support rods. The axle disc is provided with an axle hole for rotating the shaft.

7. The movable exhaust device for physical, chemical and biological laboratories according to claim 5, characterized in that: The driving motor is connected to a processor, and the processor controls the operation of the driving motor.

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