JPH10216444A - Hepa filter fitting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily fit a HEPA filter by one person by providing a flange larger than an opening of a fitting plate and which flange having tapped holes on the upper side of the HEPA filter and putting out only the flange to the upper side of the opening of the fitting plate to hang and hold the filter on the fitting plate. SOLUTION: When fitting a highly airtight HEPA filter 3a used as a final filter for a clean air conditioner, first a fitting plate 7a is fitted to the inside of a filter chamber 2, and on the other hand, on the upper side of the HEPA filter 3a, an upper side flange 9a larger than an opening of the fitting plate 7a and having tapped holes for fixing it to the fitting plate 7a is fitted. And through a gasket 10a fitted on the upper side periphery of the opening of the fitting plate 7a in advance, the flange 9a is closely adhered to the fitting plate 7a to fix them by tightening bolts 12. In this way, on fitting the HEPA filter 3a, it is easily fitted by one person, and on replacing it, it is prevented from falling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a highly airtight HEPA filter (High Efficiency) used as a final filter for a clean air conditioner for producing clean air.
Circular Particle Filter).

[0002]

2. Description of the Related Art Conventional air conditioning systems for hospitals have been individually cleaned for each system such as an operating room, an intensive care unit, a special ward room, and a delivery room. Demands are growing.

[0003] In addition to hospitals, a high level of clean space is required in a wide range of fields such as the packaging process of dairy products and fresh confectionery, meat processing, the semiconductor industry, and optical equipment.

[0004] A high-performance filter generally known as a HEPA filter is used as a final filter for a clean air conditioner that produces clean air, and can be mounted and replaced.

A conventional HEPA filter mounting apparatus of this type is disclosed in Japanese Utility Model Publication No. 4-18651.

Hereinafter, the conventional HE will be described with reference to the drawings.
The PA filter mounting device will be described.

FIG. 5 is a schematic configuration diagram showing a conventional HEPA filter mounting device. In FIG. 5, 1 is a filter unit, 2 is a filter chamber, 3 is HEPA.
The filter 4 is a clamp, and the filter unit 1 is composed of the filter chamber 2, the HEPA filter 3, and the clamp 4.

Reference numeral 5 denotes a ceiling surface on which the filter unit 1 is mounted, and reference numeral 6 denotes a mounting opening formed on the ceiling surface 5. Reference numeral 7 denotes a mounting plate provided inside the filter chamber 2, and several HEPA filter mounting bolts 8 are erected on the lower surface. Reference numeral 9 denotes upper and lower flange portions of the peripheral portion formed in a box shape of the HEPA filter 3.
Reference numeral 10 denotes a gasket through which the upper flange 9 of the HEPA filter 3 comes into contact with the lower surface of the mounting plate 7.
Numeral 11 designates the lower flange 9 of the HEPA filter 3 as HE.
This is a tightening nut for tightening the tightening fitting 4 attached to the PA filter mounting bolt 8.

The operation of the HEPA filter mounting device constructed as described above will be described below.

First, the clamp 4 is inserted into the HEPA filter mounting bolt 8 erected on the lower surface of the mounting plate 7 provided inside the filter chamber 2, and is temporarily fixed with the tightening nut 11. Then, the upper flange 9 of the HEPA filter 3 is pressed against the mounting plate 7 via the gasket 10. Next, the fastening nut 11 in the temporarily fixed state is mounted by tightening one by one several places while supporting the HEPA filter 3 with both hands.

When replacing the HEPA filter 3, the HEP
In order to prevent the A filter 3 from falling, the tightening nut is removed while supporting the HEPA filter 3 with both hands.

[0012]

However, in the above-mentioned conventional configuration, when the HEPA filter 3 is mounted, the HEPA filter 3 is mounted.
A person who supports the filter 3 and a person who tightens the tightening nut 11 are required, and there is a drawback that the filter 3 cannot be easily mounted alone. Further, when the tightening nut 11 is removed at the time of replacement, there is a disadvantage that the HEPA filter 3 loses support and falls.

[0013] The present invention solves the conventional problems.
It is an object of the present invention to provide a HEPA filter mounting device that can be easily mounted by one person when the EPA filter 3 is mounted, and can prevent dropping during replacement.

[0014]

In order to achieve this object, an HEPA filter mounting apparatus according to the present invention has a flange which is larger than an opening of a mounting plate and has a screw hole on an upper side, and a flange on an upper side of an opening of the mounting plate. And a HEPA filter characterized in that the HEPA filter is pulled out and held on the mounting plate.

Further, the HEPA filter mounting device of the present invention is characterized in that the HEPA filter has flanges on the upper and lower sides and has a square hole on one side of the lower flange, And a receiving member provided below the lower surface of one side of the HEPA filter and holding one side of the HEPA filter through a square hole of a lower flange of the HEPA filter.

According to the present invention, when the HEPA filter is mounted, it can be easily mounted by one person and can be prevented from dropping during replacement.

[0017]

DETAILED DESCRIPTION OF THE INVENTION According to the first aspect of the present invention, there is provided a filter chamber, a mounting plate provided inside the filter chamber, having an opening smaller than the filter chamber, and having a screw hole. An HEP having a flange on the upper side having a screw hole larger than the opening of the mounting plate, and projecting only the flange above the opening of the mounting plate and hooking and holding the mounting plate.
A filter, a gasket previously mounted around the upper side of the mounting plate opening, and the HEPA filter and the mounting plate for making the HEPA filter and the mounting plate closely adhered via the gasket to obtain high airtightness. HEPA filter mounting device comprising a tightening bolt for tightening the screw hole from the lower portion of the mounting plate. When the HEPA filter is mounted, the HEPA filter can be easily mounted by one person and can be prevented from dropping during replacement. It has the action of:

According to a second aspect of the present invention, there is provided a filter chamber, a mounting plate provided inside the filter chamber and having an opening smaller than the filter chamber, and flanges on upper and lower sides. And
And a HEPA filter characterized in that a square hole is provided on one side of the lower flange, and the HEPA filter is provided below the lower surface of one side of the mounting plate opening and passes through the square hole of the lower flange of the HEPA filter. It is composed of a receiving metal fitting for holding one side of the HEPA filter, a gasket previously mounted on the upper periphery of the upper flange, and a tightening metal fitting for tightly attaching the HEPA filter and the mounting plate via the gasket to obtain high airtightness. This is a HEPA filter mounting device. When the HEPA filter is mounted, one side of the HEPA filter is held so as not to fall, so that it can be easily mounted by one person and can be prevented from dropping during replacement. Having.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The same components as those in the related art are denoted by the same reference numerals, and detailed description is omitted.

(Embodiment 1) FIG. 1 is a schematic configuration diagram showing an HEPA filter mounting apparatus according to Embodiment 1 of the present invention. FIG. 2 is an exploded perspective view of the HEPA filter mounting device according to the embodiment.

1 and 2, 3a is HEPA.
It is a filter. 7a is a filter chamber 2
And a mounting plate provided with several holes for mounting fastening bolts. 9a is an upper flange provided above the HEPA filter 3a and having a screw hole for fixing the mounting plate 7a to the mounting plate 7a, the opening being larger than the opening. 10a is a gasket previously attached to the upper periphery of the opening of the attachment plate 7a. 12 is gasket 1
This is a tightening bolt that is tightened from below the mounting plate 7a so that the flange 9a of the HEPA filter 3a and the mounting plate 7a are brought into close contact with each other via Oa.

The operation of the HEPA filter mounting device configured as described above will be described below.

First, the HEPA is opened through the opening of the mounting plate 7a.
Only the upper flange 9a of the filter 3a is placed above the mounting plate 7a, and the filter 3a is placed above the gasket 10a while adjusting the positions of the screw holes of the mounting plate 7a and the upper flange 9a. Thus, since the upper flange 9a is larger than the opening of the mounting plate 7a, the upper flange 9a is hooked and held on the mounting plate 7a without supporting the HEPA filter 3a with both hands.

By tightening one by one from the lower side of the mounting plate 7a with the tightening bolts 12,
The upper flange 9a, that is, H
The EPA filter 3a and the mounting plate 7a are mounted while maintaining high airtightness.

Further, even when the HEPA filter 3a is replaced, the HEPA filter
Since the upper flange 9a of the filter 3a is hooked and held by the mounting plate 7a, it does not drop.

As described above, when the target HEPA filter is attached, the HEPA filter can be easily attached alone without supporting the HEPA filter with both hands.
The effect that the fall of the PA filter can be prevented can be obtained.

(Embodiment 2) FIG. 3 is a schematic structural view showing a HEPA filter mounting apparatus according to Embodiment 2 of the present invention. FIG. 4 is an enlarged perspective view of the HEPA filter square hole portion and the receiving fitting according to the embodiment.

3 and 4, 3b is HEPA.
Filter. 7b is a filter chamber 2
It is a mounting plate provided inside. 9b is a lower flange of the HEPA filter 3a having a square hole on one side. Reference numeral 13 denotes a receiving bracket provided below the lower side of one side of the opening of the mounting plate 7b and hooked and held through a square hole of the lower flange 9b.

The operation of the HEPA filter mounting device configured as described above will be described below.

First, the fastener 4 is inserted into the HEPA filter mounting bolt 8 erected on the lower surface of the mounting plate 7 b provided inside the filter chamber 2, and is temporarily fixed with the tightening nut 11.

Next, the square hole of the lower flange 9b of the HEPA filter 3b is hooked on the metal fitting 13 attached to the attachment plate 7b, and one side of the HEPA filter 3b is hooked and held. Therefore, since the HEPA filter 3b is hooked and held, it is possible to press against the lower surface of the mounting plate 7b via the gasket 10 while supporting with only one hand without supporting with both hands.

Thereafter, the fastening nut 11 in the temporarily fixed state is set.
Are attached by tightening each one several times while supporting the HEPA filter 3b with one hand.

At the time of replacement, the receiving fitting 13 can be caught and held in the square hole of the lower flange 9b of the HEPA filter 3b, so that it does not drop.

As described above, when the target HEPA filter is mounted, the HEPA filter can be easily mounted by one person, and the HEPA filter can be prevented from falling even when the HEPA filter is replaced.

[0035]

As described above, according to the present invention, HEPA
When installing the filter, it can be easily installed alone.

In addition, when the HEPA filter is replaced, an advantageous effect that the fall can be prevented can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a HEPA filter mounting device according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of the HEPA filter mounting device according to the embodiment.

FIG. 3 is a schematic configuration diagram illustrating a HEPA filter mounting device according to a second embodiment of the present invention.

FIG. 4 is an enlarged perspective view of a HEPA filter square hole and a receiving metal according to a second embodiment of the present invention.

FIG. 5 is a schematic configuration diagram showing a conventional HEPA filter mounting device.

[Explanation of symbols]

 2 Filter chamber 3, 3a, 3b HEPA filter 4 Clamping bracket 7, 7a, 7b Mounting plate 9, 9a, 9b Upper and lower flanges 10, 10a Gasket 12 Clamping bolt 13 Receiving bracket

Claims (2)

[Claims] 1. A filter chamber, a mounting plate provided inside the filter chamber and having an opening smaller than the filter chamber and having a screw hole, and a flange having a screw hole larger than the mounting plate opening. A HEPA filter, which is provided on the upper side and is provided with only the flange above the opening of the mounting plate and is hooked and held on the mounting plate, and a gasket previously mounted around the upper side of the mounting plate opening, A HEPA filter comprising the HEPA filter and a tightening bolt for tightening a screw hole of the mounting plate from a lower portion of the mounting plate in order to bring the HEPA filter and the mounting plate into close contact with each other through the gasket to obtain high airtightness. Mounting device. 2. A filter chamber, a mounting plate provided inside the filter chamber and having an opening smaller than the filter chamber, a flange on upper and lower sides, and a corner on one side of the lower flange. A HEPA filter provided with a hole, and the HEPA filter is provided below a lower surface of one side of the mounting plate opening;
The HE through the square hole in the lower flange of the EPA filter
A metal fitting for holding one side of the PA filter, a gasket previously attached to the upper periphery of the upper flange, and the HEPA through the gasket to obtain high airtightness;
A HEPA filter mounting device comprising a filter and a tightening fitting for closely attaching the mounting plate.