JPH0353963B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a filter mounting device used when introducing clean air into a clean room or the like or for exhausting a nuclear facility.

[Conventional technology]

Traditionally, filters have been attached to walls, ceilings, etc. using bolts and nuts, or by using their own weight. FIG. 3 shows a case in which the filter is installed vertically on a wall. Four bolts 32 are installed around the opening 11 of the mounting frame 1, and the filter 20 is held down to the mounting frame through the packing 4 with a presser member 31. , the filter 20 is attached to the mounting frame 1 by tightening the nuts 33. Air flows through the filter 20 and the opening 11, and may flow from either the right or left side of the figure.

Figure 4 shows the case where the installation is suspended from the ceiling, with four bolts 32 attached to the four sides of the opening 11 of the installation frame 1.
The filter 20 is vertically installed, and the filter 20 is pressed from below to above by a presser member 31 through the packing 4, and is tightened and fixed by a nut 33.

In the system using such bolts, the attachment and detachment are carried out directly by humans, which requires time and effort, and it is difficult to tighten the four bolts evenly, making it difficult to maintain airtightness.

Further, FIG. 5 shows a case where the own weight is used, and this time, the seal member holding frame 6 is placed around the opening 11 of the mounting frame 1.
A jelly-like seal is put inside the jelly-like seal, and a seal leg piece 23 hanging from the outer frame of the filter 20 is inserted therein to form a seal, and the filter is held down by its own weight.

In this type of system, the filter is held down by its own weight, so it has the disadvantage that it moves due to lateral loads caused by earthquakes and the like.

[Means for solving problems]

In this invention, in order to solve the conventional drawbacks, an electromagnet is provided in the filter mounting frame, and a magnetic part is formed on the filter side, so that the filter can be attached and detached, thereby shortening the attachment and detachment time. A filter mounting device that can be safely fixed without humans directly touching the filter, has sufficient strength to withstand loads, and does not allow humans to directly touch the filter during transportation before and after mounting and dismounting. It is.

〔Example〕

FIG. 1 shows an embodiment of the invention, in which an opening 11
Electromagnets 3 are provided around the opening of a filter mounting frame 1 having a diameter. This electromagnet uses a material with a high residual magnetism, and when current is passed through it, it becomes an electromagnet, when the current is turned off, it becomes a permanent magnet, and when the current is turned on, the magnetic force is canceled. Filter 2
A mounting piece 22 made of magnetic material is provided on the outer frame 21 of 0. Alternatively, the outer frame itself may be made of a magnetic material. 5
is the lower mounting shelf.

When installing, press the filter 20 against the mounting frame 1 via the gasket 4, bring the magnetic mounting piece 22 into contact with the electromagnet 3, and when the electromagnet is energized, the mounting piece 22
is attracted to the electromagnet 3. When the current is turned off, it becomes a permanent magnet and holds the filter.

When removing the filter, the magnetic force is canceled by energizing the filter 20, and the filter 20 can be easily removed. Filter holding part 6 of filter transport device
By using the electromagnet 3 described above and performing the operation opposite to the attachment and detachment of the filter to the filter frame, the filter can be easily and safely transported, attached and detached without the need for a person to directly touch the filter.

〔effect〕

The present invention has such a configuration, and the filter is attached using an electromagnet that becomes an electromagnet when energized and the magnetic force is canceled when energized, so it is simple, time-saving, and safe.
Moreover, it can be firmly attached.

Furthermore, by using the above-mentioned electromagnet to hold down the filter during transportation, even filters containing dangerous substances such as radioactive substances can be safely transported.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the filter according to the present invention in an installed state, FIG. 2 is a view showing the view from above,
FIG. 3, FIG. 4, and FIG. 5 are views showing the conventional mounting state, respectively. Explanation of symbols, 1...Filter mounting frame, 11...
Opening, 20... Filter, 21... Filter outer frame, 22... Mounting piece, 3... Electromagnet, 4... Packing, 5... Mounting shelf, 6... Holding part, 31...
Holder material, 32...bolt, 33...nut.

Claims (1)

[Scope of Claims] 1. A filter mounting device characterized in that an electromagnet is mounted on a filter mounting frame, and a filter outer frame is locked to the filter mounting frame by coupling the electromagnet and a magnetic body. 2. The filter mounting device according to claim 1, wherein the filter outer frame is made of a magnetic material. 3. Claim 1, wherein the filter outer frame is provided with a magnetic attachment piece.
Filter mounting device as described in section. 4. Any of the above claims, characterized in that the electromagnet becomes a magnet when energized, becomes a permanent magnet when the current is turned off, and on the other hand, the magnetic force is released when energized. The filter mounting device according to item 1.