JPH039777Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an air filter device that purifies dust-containing air and sends it out as clean air, particularly an air filter device for air conditioning equipment installed in buildings. be.

[Conventional technology]

In the conventional air filter device of this kind, as shown in FIG. 6, a plurality of filter units 1 each having a filter 16 fitted into an edge frame 15 are placed adjacent to each other in a wooden frame 2 so that their inclinations are alternately opposite to each other. Make the filter body 3 by fitting it in the
As shown in FIG. 5, a filter body 3 is installed in a filter chamber 6 having an air inlet 4 and an air outlet 5.
It was assembled by placing the required number of holders adjacent to each other and fixing them with connecting rods 7 or the like.

[Problem that the invention attempts to solve]

The conventional air filter device described above has the following problems.

Since each filter body 3 is bulky and heavy, it is not only difficult to handle during transportation and storage, but also requires a large space for transportation and storage.

As mentioned above, each filter body 3 is bulky and heavy, and in addition, a worker must individually carry each filter body 3 into the filter chamber 6 through the entrance 19 provided in the filter chamber 6 to install the filter body 3. Therefore, the installation work of the filter body 3 is also very troublesome.

As the amount of dust attached to the filter 16 increases, the pressure loss increases and the air volume decreases, so the filter body 3 should be replaced with a new filter body from time to time.
Used filter bodies 3 are disposed of, but when disposing of them, each filter unit 2 is hermetically fitted into the wooden frame 1 with a sealant, and it is not possible to remove them from the wooden frame 1. Because of this difficulty, the entire wooden frame 1 has to be made and discarded, which is uneconomical as the wooden frame 1 is wasted.

The filter body 3 is assembled by manufacturing a wooden frame 1 to standard dimensions for mass production and fitting each filter unit 2 into the wooden frame 1, whereas the filter chamber 6 is assembled by fitting each filter unit 2 into the wooden frame 1. The dimensions of the filter body 3 may vary depending on the circumstances of the building in which it is installed, so when the filter body 3 is installed in the filter chamber 6,
A gap is often formed between the filter chamber 6 and the filter chamber 6, and the extra work of sealing the gap airtight is often required.

The present invention aims to provide an air filter device that can solve the above-mentioned conventional problems.

[Means for solving problems]

The present invention will be explained in detail below based on FIGS. 1 to 4. Reference numeral 8 denotes a duct for passing dust-containing air, and is installed in the ceiling of a building. Reference numeral 9 denotes an upstream rail group, in which a plurality of rails 10 are vertically installed at intervals 11 in the upstream frontage of the duct 8. Reference numeral 12 denotes a group of downstream rails, in which a plurality of rails 13 are arranged at the frontage of the downstream side of the duct 8 at a position opposite to the intermediate position of the interval 11 between the rails 10 on the upstream side, for example, at the pitch of each rail 10 on the upstream side. They are constructed vertically at positions shifted by half a pitch. Reference numeral 14 denotes a filter unit, which is fitted into a rectangular edge frame 15 formed to be slidably inserted between the rail groups 9 and 12 on the upstream side and the downstream side so that the inclination with respect to the airflow direction is alternately opposite. The filter 16 is fitted, and the edge frame 15
A sealing material is attached along the contact portion between the inner wall of the frame 15 and the filter 16, and a magnet 22 is attached to the upper side of the edge frame 15. Reference numeral 23 denotes a magnetic adsorption piece installed at the upper part between the upstream and downstream rail groups 9 and 12 to face the magnet 22 of each filter unit 14; 31 is the entrance and exit of each filter unit 14; It opens at a position facing the lower part between the upstream and downstream rail groups 9 and 12, and is opened and closed by a door 32.

[Effect]

Open the door 32, and insert each filter unit 14 from the entrance 21 between the upstream and downstream rail groups 9, 12 with the magnet 20 facing upward, so that the inclinations relative to the airflow direction are alternately opposite. Then, each filter unit 14 connects to the duct 1.
When the magnet 2 is fully inserted into the
2 is attracted to the magnetic attraction piece 23, and each filter unit 14 is supported so as not to fall due to its own weight. When the insertion of each filter unit 14 is completed, the door 32 is closed and the fan is operated to introduce dust-containing air 17 into the duct 1 and allow it to pass through each filter unit 14, so that the dust is captured by the filter 16. The collected and purified air 18 is sent out.

〔Example〕

The upstream rail group 9 is constructed by fixing, for example, angle members 24 and 25 on the bottom and top surfaces of the duct 1 in a direction perpendicular to the airflow direction as shown in the second figure, and forming a section between the angle members 24 and 25, for example. It is assembled by fixing the letter-shaped rails 10, and the downstream rail group 12 is also assembled on the bottom and top surfaces of the duct 1.
As shown in the second figure, the angle members 26 and 27 are fixed, and the rail 13 having a U-shaped cross section is fixed between the angle members 26 and 27, thereby assembling. In the filter unit 14, for example, as shown in the third figure, a mini-pleated filter, that is, a filter paper 28 is folded in a zigzag shape on a frame edge 15 formed of a material such as metal or plastic, and a filter paper 28 is folded in a zigzag shape from the front and back sides between each folded surface. A filter 16 formed by inserting and fixing a plurality of string spacers 20 at appropriate intervals 21 may be used, and a filter other than the mini-pleat filter may be fitted into the frame edge 15. Depending on the situation, assembled items may also be used. For example, magnetic rubber is used for the magnet 22 attached to the upper side of the frame 15, and the magnet 22 is attached to the upper side of the frame 15.
2 cushion material such as sponge between the upper side of the
Insert 9. When the magnetic rubber is pressed against the magnetic attraction piece 23, the entire surface of the magnetic rubber easily comes into close contact with the magnetic attraction piece 23 due to the cushioning action of the cushion material 29. A uniform and strong magnetic force acts on the magnet 22, thereby ensuring that the magnet 22 is attracted to the magnetic attraction piece 23. Immediately after inserting the filter unit 14 as shown in FIG. 4, a stopper 30 for receiving the lower end of the filter unit 14 is attached to the lower end of each rail 10 so as to be openable and closable with a shaft pin 31. A stopper similar to stopper 30 may be attached.

[Effect of idea]

Since the present invention is configured as described above, it has the following effects.

The wooden frame used in conventional equipment is no longer required, and the bulk and weight of each filter unit is small, which not only simplifies handling during transportation and storage, but also reduces the space required for transportation and storage. Conversely, when using the same amount of space as before, it becomes possible to transport and store large quantities.

As mentioned above, each filter unit is small and lightweight, and can be inserted along the rail inside the duct, so there is no need for workers to go in and out of the filter chamber. When inserted into the duct, the magnet attracts the magnetic adsorption piece and prevents the filter unit from falling, so there is no need to manually hold down each filter unit until the filter unit entrance is closed, and the filter unit can be inserted into the duct. Installation work becomes easier.

By installing the device of the present invention in each room of a building, it becomes possible to send clean air only to the rooms in use.

Once the filter unit has been replaced, the filter unit itself can be disposed of, and the wooden frame does not need to be disposed of as in the conventional method, which is economical.

By adjusting the number and spacing of each rail,
It can respond freely to changes in the dimensions of the duct, and each filter unit can be inserted into any duct without any gaps, eliminating the need for the conventional work of airtightly sealing the gap between the filter chamber and the filter body. becomes unnecessary.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the present invention. Figure 1 is a perspective view of each filter unit inserted into the duct, and Figure 2 is a perspective view of the upstream and downstream rail groups assembled. Partial perspective view of the 3rd state
The figure is a perspective view illustrating an example of the assembly structure of a filter unit, FIG. 4 is a diagram showing an example in which a stopper is provided at the lower end of the rail, FIG. 5 is a schematic diagram of a conventional air filter device, and FIG. 6 is a diagram of the same device. FIG. 3 is a perspective view with a part of the filter unit omitted. 8...Duct, 9...Upstream rail group, 12...
...downstream rail group, 14...filter unit,
15... Edge frame, 16... Filter, 22... Magnet, 23... Magnetic adsorption piece, 31... Doorway.

Claims (1)

[Scope of utility model registration request] A duct for passing dust-containing air, an upstream rail group consisting of a plurality of rails installed vertically at intervals in the upstream frontage of the duct, and a plurality of rails installed in the downstream frontage of the duct. A downstream rail group is constructed vertically at a position opposite to the intermediate position between the rails on the upstream side, and the inclination with respect to the airflow direction is alternately opposite between the upstream and downstream rail groups. A filter unit has a filter fitted into each edge frame molded so as to be slidably inserted therein, and a magnet is attached to the upper side of each edge frame, and the above-mentioned upstream and downstream rails. A magnetic adsorption piece installed at the upper part between the groups so as to face the magnets of each of the filter units, and a door opening at the bottom of the duct at a position facing the lower part between the upstream and downstream rail groups. An air filter device comprising an inlet and an inlet of each of the filter units described above, which are opened and closed by a.