JP7571292B2 - Mobile local exhaust ventilation system - Google Patents

Description

The present invention relates to a local exhaust ventilation system, and in particular to a mobile local exhaust ventilation system that is placed in laboratories, workplaces, etc., and filters and quickly exhausts harmful gases generated by pollution sources.

Local exhaust ventilation systems are used to improve product quality and obtain accurate experimental results by quickly removing pollutants near pollution sources when a local pollution source occurs away from an exhaust outlet fixed to a wall or ceiling, when it is difficult to install an exhaust outlet near the pollution source due to surrounding structures or installations, or when it is difficult to install an exhaust outlet due to the sudden occurrence of pollution.

Therefore, local exhaust ventilation systems are primarily used in laboratories and factories where clean atmospheric conditions are required, and they play an important role in protecting users from pollutants.

Such local exhaust systems are generally composed of an exhaust device that generates suction force, an articulated arm that is connected to the exhaust device, and a hood that is connected to the tip of the articulated arm and uses the suction force of the exhaust device to suck in pollutants generated from the pollution source.

In the local exhaust ventilation system configured as described above, it is effective to use different types of hoods depending on the attributes of the hazardous chemicals and the type of experiment. However, conventional local exhaust ventilation systems use a method of fastening the hood to the joint arm using bolts, which means that it is not easy to replace the joint arm with a different type of hood depending on the situation.

Furthermore, conventional local exhaust devices have an on/off switch on the exhaust device, so when the length of the articulated arm exceeds a certain length, the user who is near the hood has to move to the exhaust device side to turn the exhaust device on and off, which is inconvenient.

The present invention was devised to solve the problems of the prior art described above, and its purpose is to provide a mobile local exhaust ventilation device that allows the hood to be easily attached and detached from the articulated arm using magnetic force, making it easy to replace the hood depending on the properties of the hazardous chemicals and the type of experiment.

Another objective is to provide a mobile local exhaust ventilation system that eliminates the need for the user to move to turn the system on and off by providing an on/off switch on a remote control that the user can carry with them.

The mobile local exhaust system of the present invention, which aims to solve the above problems, comprises: (1) an exhaust system that generates suction power by rotating a motor and has a built-in filter that purifies pollutants and then discharges clean air; (2) an articulated arm that is connected to the exhaust system at one end and has a magnetic body at the other end; and (3) a hood that sucks in pollutants by the suction power generated by the exhaust system and has a metal plate on its upper surface that is attracted (attached) to the magnetic body.

The magnetic body is composed of (i) a base that is in close contact with the other end of the joint arm, (ii) a cover that seals the top surface that is open by the base and is fastened to the joint arm together with the base, and (iii) a number of magnets that are installed inside the cover.

On the other hand, the present invention further includes a remote control equipped with a power switch for turning the exhaust device on and off.

Here, the remote control is equipped with a VOC sensor.

The remote control also has an exhaust control button that controls the motor of the exhaust device to adjust the amount of exhaust.

In addition, if the VOC concentration measured by the VOC sensor is equal to or higher than a set value, the motor of the exhaust device will automatically start operating.

The mobile local exhaust ventilation device of the present invention, configured as described above, has a hood attached to the end of the articulated arm by a magnetic body and a metal plate that are connected by magnetic force, making it easy to attach and detach the hood, and has the advantage that the hood can be easily replaced with a different type of hood depending on the properties of the hazardous chemicals and the type of experiment.

In addition, by changing the conventional method of loosening and tightening the screws to replace the hood, to a method of attaching and detaching using magnetism, there is an advantage in that the time required to replace the hood is shortened, improving convenience and work efficiency.

In addition, by providing a power switch on the remote control, the user does not need to move from their current position to turn the exhaust device on or off, which has the advantage of not distracting the user during the experiment.

In addition, when the user is not using the local exhaust system, they can simply turn it off using the remote control, which has the added benefit of reducing electricity and filter costs.

In addition, the VOC sensor detects the concentration of harmful gases around the remote control, and the exhaust control button allows the user to easily adjust the amount of harmful gas inhaled and the amount of clean air exhausted, ensuring the health and safety of the user and improving concentration during the experiment.

In addition, if the VOC concentration is equal to or exceeds a set value, the exhaust device motor will automatically start operating. This has the advantage of ensuring the safety of users, as even if a situation arises where a user is engrossed in an experiment or work and has not yet given any thought to indoor air pollution, the indoor air will be purified by the automatic operation of the motor.

FIG. 1 is a diagram showing a mobile local exhaust ventilation system according to the present invention (1). FIG. 2 shows a mobile local exhaust ventilation system according to the present invention. FIG. 1 is a diagram showing an articulated arm and a hood of a mobile local exhaust ventilation system according to the present invention (1). FIG. 2 shows the articulated arm and hood of the mobile local exhaust ventilation system according to the present invention (2). FIG. 5 is a diagram showing a remote control for the mobile local exhaust ventilation device according to the present invention.

The mobile local exhaust system of the present invention, which aims to solve the above problems, is composed of (1) an exhaust system that generates a suction force by rotating a motor, has a built-in filter, purifies pollutants, and then discharges clean air, (2) an articulated arm that is connected to the exhaust system at one end and has a magnetic body at the other end, and (3) a hood that sucks in pollutants by the suction force generated by the exhaust system and has a metal plate on its upper surface that is attracted to the magnetic body.

Below, an embodiment of the mobile local exhaust ventilation system according to the present invention will be described in detail with reference to the attached drawings.

Figures 1 and 2 show a mobile local exhaust system according to the present invention, Figures 3 and 4 show an articulated arm and a hood of the mobile local exhaust system according to the present invention, and Figure 5 shows a remote control of the mobile local exhaust system according to the present invention.

The mobile local exhaust device according to the present invention includes (1) an exhaust device 10, an articulated arm 20 connected to the exhaust device 10, and (2) a hood 30 connected to the articulated arm 20, and may further include (3) a remote control 40 for remotely controlling the exhaust device 10.

The exhaust device 10 generates suction force by rotating a motor 11 installed inside, and has a built-in filter 12 that purifies pollutants and then exhausts clean air.

To explain in more detail, the exhaust device 10 has a motor 11 installed inside, and an intake fan 13 is installed on the rotating shaft of the motor 11. When the intake fan 13 rotates, a suction force is generated that draws air toward the filter 12 built into the exhaust device 10. This suction force causes air containing pollutants to flow into the exhaust device 10 through the hood 30 and the joint arm 20, and is purified as it passes through the filter 12. The clean air purified by the filter in this way is discharged to the outside of the exhaust device 10.

One end of the articulated arm 20 is connected to the inside of the exhaust device 10, and a magnetic body 50 is installed at the other end.

The articulated arm 20 is made up of multiple tubes of a given length connected together so that they can rotate with respect to one another, and the hood 30 attached to the tip can be moved to any location to absorb pollutants generated from the pollution source. The articulated arm 20 can be folded up when the local exhaust system is not in use, so that it does not interfere with other tasks.

The magnetic body 50 is composed of a base 51 which is a plastic injection product, a cover 52 which is connected to the base 51 and made by plastic injection, and a number of magnets 53 which are installed inside the cover 52.

The base 51 is in the form of a circular ring and fits closely to the other end of the articulated arm 20.

The cover 52 is in the form of a circular ring having the same diameter as the base 51, with an open top surface and a closed remaining surface. The open top surface of the cover 52 is sealed by the base 51.

In this way, the cover 52, together with the base 51 that covers the open top surface, is fastened to the joint arm 20 using bolts or the like. The bolts used in this case can be made from metal, but if they are made from plastic, the bolts can be prevented from corroding due to harmful gases.

The magnet 53 is made of a material with strong magnetism, so that even when it is placed inside the cover 52, its magnetism allows it to form a strong bond with the metal plate 31, which will be described later.

The hood 30 sucks in pollutants using the suction force generated by the exhaust device 10, and has a metal plate 31 on its upper surface that is attracted (attracted) to the magnetic material 50.

This type of hood 30 is located above a pollution source whose position changes frequently within a certain space, and sucks in harmful gases generated from the pollution source. The harmful gases sucked in in this way are sucked into the inside of the exhaust device 10 via the joint arm 20.

The metal plate 31 is formed in a ring shape, similar to the magnetic body 50, and is coupled to the magnetic body 50 by magnetic force.

The remote control 40 communicates with the exhaust device 10 using a wireless communication method such as Bluetooth (registered trademark) to remotely control the exhaust device 10, and is equipped with a power switch 41, a VOC sensor 42, an exhaust control button 43, etc.

The power switch 41 turns the exhaust device 10 on and off, and supplies or cuts off power to the motor 11 and other electrical equipment used in the exhaust device 10.

The VOC sensor 42 detects VOCs (volatile organic compounds) around the remote control 40 and measures their concentration.

The exhaust control button 43 controls the motor 11 of the exhaust device 10 to adjust the amount of exhaust. If the concentration of VOCs measured by the VOC sensor 42 is too high, the exhaust control button 43 on the remote control 40 is operated to increase the amount of exhaust. In other words, when the exhaust control button 43 is operated to increase the amount of exhaust, the rotation of the motor 11 increases and the suction force becomes stronger, so that more harmful gases are inhaled and filtered, and then more clean air is discharged.

Of course, the exhaust volume can also be automatically adjusted by automatically operating the motor 11 of the exhaust device 10 according to the concentration measured by the VOC sensor 42. In other words, when the concentration of VOCs measured by the VOC sensor 42 reaches or exceeds a specific value set in advance, the motor 11 of the exhaust device 10 automatically operates to purify the air in the room.

This invention relates to a mobile local exhaust system that is often used when manufacturing products in factories or conducting experiments in laboratories, and can therefore be widely applied to industries related to exhaust systems.

Claims (6)

an exhaust device (10) that generates a suction force by rotating a motor (11) and has a built-in filter (12) to purify pollutants and then discharge clean air;
an articulated arm (20) having one end connected to the exhaust device (10) and the other end having a magnetic body (50) mounted thereon;
a hood (30) that sucks in pollutants by a suction force generated by the exhaust device (10) and has a metal plate (31) on its upper surface that is attracted to the magnetic body (50);
The present invention relates to a method for manufacturing a computer-implemented ...
The magnetic body (50) comprises a base (51) which is in close contact with the other end of the joint arm (20), a cover (52) whose open upper surface is sealed by the base (51) and which is fastened to the joint arm (20) together with the base (51), and a number of magnets (53) installed inside the cover (52), and the base (51) and the cover (52) are plastic injection molded products in the form of rings.
The other end of the articulated arm (20) is provided with an upper ring-shaped horizontal plate portion that extends horizontally along the outer circumferential surface of the articulated arm (20) and provides a seating surface on which the magnetic body (50) is placed, and an outer ring- shaped vertical plate portion that extends vertically downward from an edge of the upper ring-shaped horizontal plate portion and encloses a side surface of the magnetic body (50),
The hood (30) has:
a lower ring-shaped horizontal plate portion having a horizontal surface extending along the outer periphery of the upper opening of the hood (30) so as to provide a seating surface on which the metal plate (31) is mounted;
a movable local exhaust device including an upper ring-shaped horizontal plate portion of the articulated arm (20) extending along the periphery of the top opening and an inner ring-shaped vertical plate portion which, together with the upper ring-shaped horizontal plate portion, the outer ring-shaped vertical plate portion , and the lower ring-shaped horizontal plate portion , forms an enclosed space enclosing the periphery of the magnetic body (50). A ring-shaped lip portion extends from the lower edge of the outer ring-shaped vertical plate portion , and a tip portion of the lip portion abuts against the outer surface of the hood (30).
2. The mobile local exhaust ventilation system according to claim 1. The exhaust device further includes a remote control (40) having a power switch (41) for turning the exhaust device (10) on and off.
2. The mobile local exhaust ventilation system according to claim 1. The remote control (40) is provided with a VOC sensor (42).
The mobile local exhaust ventilation system according to claim 3. The remote control (40) is provided with an exhaust control button (43) for controlling the motor (11) of the exhaust device (10) to adjust the amount of exhaust.
The mobile local exhaust ventilation system according to claim 3. When the concentration of VOC measured by the VOC sensor (42) is equal to or higher than a set value, the motor (11) of the exhaust device (10) is automatically operated.
5. The mobile local exhaust ventilation system according to claim 4.

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