JP4376261B2 - Protective cover for dust collection and exhaust system - Google Patents

Description

  The present invention relates to a protective cover for dust collection and exhaust devices. In particular, the present invention relates to dust collection and exhaust device protective covers used during asbestos dismantling and removal operations.

In recent years, health damage caused by asbestos has become apparent, and asbestos dismantling and removal have been legalized, and asbestos dismantling and removal work has been performed in many places. And in the asbestos dismantling removal work, it is required by law to collect dust with a dust collecting device with a filter.
In this operation, if the dust collecting device is used without being exposed, asbestos adheres to the dust collecting device. Therefore, the work is performed by covering with a commercially available seat cover or the like.

Here, the dust collecting device for asbestos is often used after being wetted to prevent asbestos from scattering. As a result, the filter is clogged quickly and the filter must be replaced frequently. At that time, the seat cover covering the dust collecting device must be removed, or the filter must be replaced by cutting out the door, which has the problems of complexity and re-scattering of asbestos dust. .
An object of this invention is to provide the cover apparatus for dust collectors which can perform maintenance of a dust collector easily in view of the said problem.

According to the first aspect of the present invention, the dust collecting device cover covers the dust collecting device so that the dust does not adhere to the collecting device when collecting the dust in the space using the dust collecting device. And
An overseat cover surrounding the upper part of the dust collector;
An undersheet cover coupled to the oversheet cover and enclosing the lower part of the dust collecting device,
The dust collector has a working lid,
An openable / closable opening / closing portion for allowing an operator to access the work lid is attached to the overseat cover and / or the underseat cover.
A dust collecting device cover is provided.
In the invention of claim 2, the opening / closing part is opened and closed by a slider-moving airtight fastener.
In the invention of claim 3, the over-sheet cover hangs down on the upper side of the upper surface of the dust collecting device and has an upper surface portion having an area substantially equal to the upper surface and deployed and continuously below the upper surface portion. Including an upper vertical portion,
The under seat cover includes a bottom surface portion that has an area substantially equal to the bottom surface and is deployed and disposed below the bottom surface of the dust collection device, and a lower vertical portion that rises upward continuously from the bottom surface portion. To be done.
According to the invention of claim 4, the oversheet cover is arranged on the upper side of the upper surface of the dust collecting device, continuously with the upper surface portion having an area substantially equal to the upper surface and the outer edge of the upper surface portion. A side vertical portion having a length that hangs down and reaches the floor surface,
The undersheet cover is formed continuously with the oversheet cover, and includes a bottom outer edge portion that has a predetermined width outward from the outer edge of the bottom surface of the dust collector, and the bottom outer edge portion is disposed on the floor surface. Affixed with adhesive tape.

  According to the present invention, the underseat cover and the overseat cover cover the dust collecting device on the lower side and the upper side to prevent asbestos from adhering, and since there is an opening and closing part for work, filter replacement and maintenance are easy. Yes. In particular, if the opening / closing part is opened / closed by a slider-moving airtight fastener, the opening / closing operation is very simple and dust scattering is prevented.

Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing an entire dust collecting apparatus 1 to which a cover according to the present invention is applied. The main body 2 of the dust collecting apparatus 1 has a rectangular parallelepiped shape, and has an upper surface 2a, a lower surface 2b, an upstream surface 2c, a downstream surface 2d, and a pair of side surfaces 2e. Four lifting hooks 8 are attached to the upper surface 2a, and casters 9 are attached to the lower surface 2b.

  It has an inlet 3 for air containing dust and an outlet 4 for discharging the air after dust is collected. Between the inflow port 3 and the outflow port 4, a primary filter 5a, a secondary filter 5b, and a tertiary filter 5c arranged in series in order from the upstream to the downstream are provided. The order becomes finer in the order of the primary filter 5a, the secondary filter 5b, and the tertiary filter 5c, and the tertiary filter 5c is a HEPA and ULPA filter. A suction fan (not shown) is provided downstream of the tertiary filter 5c.

  A working lid 6 for exchanging the filter is attached to both side surfaces of the main body 2 by bolts. An inlet duct 3a and an outlet duct 4a having appropriate lengths are connected to the outside of the inlet 3 and the outlet 4, respectively. A wiring outlet 7 is provided below the inlet 3. A control panel 8 is attached to one side surface.

FIG. 2 shows a state in which the undersheet cover 10 of the first embodiment is opened, and the dust collecting device 1 is disposed thereon. The undersheet cover 10 is formed of a transparent resin film.
The undersheet cover 10 of the first embodiment includes a main portion 11 (hatched portion) equal to the bottom surface of the main body 2 of the dust collecting device 1, an upstream vertical portion 12, a downstream vertical portion 13, and a pair of side vertical portions 14. Including. A hole 12 ′ corresponding to the wiring outlet 9 is formed in the upstream vertical portion 12. A cutout 14 ′ corresponding to the opening / closing lid 6 is formed in the side vertical portion 14.

  FIG. 3 shows a state in which each vertical portion of the undersheet cover 10 is raised along the main body 2 to form a three-dimensional shape. For this purpose, the parts marked with “x” are joined by an adhesive tape. However, it is also possible, for example, to provide an airtight zipper in advance so that it can be joined. In that case, opening and closing is easier if the position of the zipper part is set to a place where the ridgeline of the corner part is removed.

FIG. 4 is a perspective view of the oversheet cover 20 according to the first embodiment.
The oversheet cover 20 is also formed of a transparent resin film, like the undersheet cover 10.
The oversheet cover 20 of the first embodiment is formed in a three-dimensional manner, and has a main portion 21, an upstream vertical portion 22, a downstream vertical portion 23, and a pair of lateral sides that are equal to the upper surface of the main body 2 of the dust collecting device 1. A vertical portion 24 is included. A hole 22 ′ corresponding to the inlet 3 and a hole 22 ″ corresponding to the wiring outlet 9 are formed in the upstream vertical part 22, and a hole 23 ′ corresponding to the outlet 4 is formed in the downstream vertical part 23. An opening / closing portion 24 ′ is formed in the side vertical portion 24 corresponding to the opening / closing lid 8.

The opening / closing part 24 ′ is formed by making a cut perpendicular to the wavy line part and attaching an airtight fastener there. As a confidential fastener, a fastener used for a food storage bag or the like is used to disengage a linearly extending convex cross-section member using a slider in a linearly extending concave cross-section groove, for example. preferable.
And if necessary, it can be rolled up as shown in the figure.

FIG. 5 is a view showing a state in which the three-dimensional undersheet cover 10 shown in FIG. 3 and the oversheet cover 20 shown in FIG. 4 are combined. The upper end position of the undersheet cover 10 is higher than the lower end position of the oversheet cover 20 and overlaps so that the oversheet cover 20 is on the outside. And it seals with the adhesive tape in the lower end part of the oversheet cover 20.
Thus, asbestos is prevented from adhering to the dust collecting device 1.

Next, a second embodiment will be described.
FIG. 6 is a view for explaining the second embodiment. The oversheet cover 30 of the second embodiment is similar to the oversheet cover 20 of the first embodiment in the main body of the dust collecting device 1. 2 includes a main portion 31, an upstream vertical portion 32, a downstream vertical portion 33, and a pair of side vertical portions 34, which are equal to the upper surface of 2. A hole 32 ′ corresponding to the inflow port 3 and a hole 32 ″ corresponding to the wiring outlet 9 are formed in the upstream vertical portion 32, and a hole 33 ′ corresponding to the outflow port 4 is formed in the downstream vertical portion 33. An opening / closing part 34 ′ is formed in the side vertical part 34 corresponding to the opening / closing lid 8.
However, the lower ends of the upstream vertical portion 32, the downstream vertical portion 33, and the pair of side vertical portions 34 reach the floor surface.

The upstream horizontal portion 42, the downstream horizontal portion 43, and the pair of side vertical portions 44 of the undersheet cover 40 correspond to the upstream vertical portion 32, the downstream vertical portion 33, and the pair of side vertical portions 34, respectively. Is continuously extended outward from the lower end of the.
And the "x" mark part of each outer edge of the upstream horizontal part 42, the downstream horizontal part 43, and a pair of side vertical part 44 is closely_contact | adhered to a floor surface with an adhesive tape.
Since 2nd Embodiment is comprised in this way, asbestos does not adhere.

FIG. 7 shows an example of measures to prevent asbestos from adhering to the caster 9. The caster mounting base 9 'has a reverse taper, a rubber band 51 is attached to the vinyl bag 50, and the reverse taper part is hooked. It is. As a result, fine dust of asbestos enters and adheres to the bearing portion of the caster 9, causing re-scattering of fine dust and preventing caster rotation failure.
This is preferably combined with the first embodiment and the second embodiment.

  The present invention has been developed specifically for the purpose of applying to a dust collecting device used during asbestos dismantling and removal work, but of course can also be applied to other similar collecting devices.

It is the perspective view which showed the dust collection apparatus schematically. The perspective view which shows the state which unfolded the undersheet cover of 1st Embodiment horizontally. The perspective view which shows the state which three-dimensionalized the under seat cover of FIG. The perspective view which shows the overseat cover of 1st Embodiment. The perspective view which shows the state which covered the dust collection apparatus combining FIG. 3 and FIG. The perspective view which shows the overseat cover of 2nd Embodiment. The figure which shows the countermeasure of a caster part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dust collector 2 Main body 3 Inlet 4 Outlet 5a, 5b, 5c Primary, secondary, tertiary filter 6 Opening and closing lid 7 Wiring attachment part 9 Caster 10 Under seat cover 20 Over seat cover 30 Over seat cover 40 Under Seat cover 50 bags

Claims (4)

A dust collecting device cover that covers the dust collecting device so that the dust does not adhere to the collecting device when collecting dust in the space using the dust collecting device,
An overseat cover surrounding the upper part of the dust collector;
An undersheet cover coupled to the oversheet cover and enclosing the lower part of the dust collecting device,
The dust collector has a working lid,
An openable / closable opening / closing portion for allowing an operator to access the work lid is attached to the overseat cover and / or the underseat cover.
A dust collecting device cover.   The dust collector cover according to claim 1, wherein the opening / closing part is opened and closed by a slider-moving airtight fastener. The oversheet cover includes, on the upper side of the upper surface of the dust collecting device, an upper surface portion that is deployed and arranged with an area substantially equal to the upper surface, and an upper vertical portion that hangs downward continuously from the upper surface portion,
The under seat cover includes a bottom surface portion that has an area substantially equal to the bottom surface and is deployed and disposed below the bottom surface of the dust collection device, and a lower vertical portion that rises upward continuously from the bottom surface portion. The dust collector cover according to claim 1. The overseat cover has an upper surface portion having an area substantially equal to the upper surface of the dust collecting device, an upper surface portion that is deployed, and a length that hangs downward continuously from the outer edge of the upper surface portion and reaches the floor surface. A side vertical portion having a thickness,
The undersheet cover is formed continuously with the oversheet cover, and includes a bottom outer edge portion arranged with a predetermined width outward from the outer edge of the bottom surface of the dust collecting device, and the bottom outer edge portion is disposed on the floor surface. Affixed with adhesive tape,
The dust collector cover according to claim 1.

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