DE7514034U - AIR TREATMENT DEVICE, IN PARTICULAR VENTILATION OR AIR CONDITIONING UNIT - Google Patents

Description

GRADUATE ENGINEER

HELMUT LAMPREOHT

PATENT ADVOCATE

ΘΟΟΟ MÜNCHEN 5 CO R N E L I U S ST R AS S E 42 TELEFON 24 07 75

1982

company

MABAG ventilation and air conditioning technology

GmbH

Dudweilerstr. 105

6670 St. Ingbert

Air treatment device, especially ventilation or air conditioning unit

The invention relates to an air treatment device, in particular a ventilation or air conditioning unit, consisting of a composite combination of individual cuboid assemblies, such as fan part, cooler part, air washer part, filter part, heating part, mixing part, exhaust air part, etc., in which the individual assemblies from the respective air handling units and each a cuboid housing that does not close them exist, the housings of the individual assemblies being connected to one another in an airtight manner.

Air handling devices of this type are centralized and decentralized and both inside and outside of buildings

POST CHECK ACCOUNT MUNICH 00048-ΘΟΟ (BLZ 700 100 00) GERMAN! BANK MÜtjCHEN. P RO M EN AD E SPACE, ACCOUNT NO, 10/80 804 (BLZ 700 700 10)

£ JCJ S mubnchbn

- 2 - 1981-82

used. In devices that have been customary up to now, the individual assemblies are mostly in a common Frame assembled and completely transported to the construction site and built into the building.

In the known devices, the individual air treatment parts or blocks delivered assembled in one piece, so that devices of considerable length, d. H. up to 3 or 4 m and above. Not just the transport of such bulky devices, but In particular, bringing it into the building up to the installation site is associated with difficulties. For installation in buildings, these must be provided with appropriately dimensioned wall openings. at New buildings can be provided with the necessary breakthroughs in the planning, as shown in practice but not infrequently that through subsequent changes in the planning or design of the air treatment device the openings are not sufficiently dimensioned to allow the device to be installed smoothly.

Since - as already mentioned at the beginning - the individual assemblies must be connected to one another in an airtight manner, So far one has not abandoned it, either the complete air treatment device in the manufacturing plant ready to assemble, accepting the difficulties mentioned above, or in the case of larger air conditioning centers

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an expensive one that involves a relatively large amount of effort To apply element construction, in which individual sub-elements were assembled at the installation site to form a large air conditioning center, but with regard to the considerable Installation effort and the tightness of the system, many problems remained open.

It has been shown in known devices that, despite the assembly in the factory, the seal is still is not optimally solved. The housings were formed from frame profiles and wall panels screwed to them, wherein a seal has been inserted between the edge of the wall panel and the frame profile. Because of the internal pressure the wall panels arched, causing the edge zones to tilt against the frame profiles, which reduced the tightness the connection impaired.

Another disadvantage of the known air treatment devices is that the arrangement of the Assemblies arise in a row of very long, bulky structures that are often difficult to adapt to the spatial conditions at the place of use, including through large edge lengths relatively large leakage losses occur.

The invention is based on the object of designing an air treatment device of the type initially described so that it can also be installed on site,

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that the joining of the individual assemblies at any selectable boundary surfaces of the neighboring Assemblies, so also laterally odor one above the other, can be done, and that there is an effective seal possible can be guaranteed. In addition, the construction should be able to be designed so that a relatively large Material savings are achieved and assembly on site is as simple, reliable and with the least amount of tools as possible is possible.

The solution to this problem is that the housing from frame profiles, corner connectors for the frame profiles Wall panels and sealing profiles between wall panels and frame profiles are assembled so that they can be dismantled, and common Housing edges of adjacent assemblies are each formed by a common frame profile.

An advantageous embodiment is that associated with one another on the frame profiles and the corner connectors Snap connection elements are arranged.

Another useful embodiment is that the frame profiles are designed as hollow profiles and the corner connectors fitted into the cavity of the frame profiles Approaches are provided. It is a further advantageous embodiment that the frame profiles have a square cross-section own.

Yet another advantageous embodiment is that the frame profiles on two outer surfaces with connecting elements

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are provided for the wall panels, the connection elements according to a particularly useful embodiment for the wall panels from two together with the outer surface of the frame profile a channel with a U-shaped cross-section forming, in the longitudinal direction of the frame profile to each other there are parallel ribs. It is still another advantageous embodiment that the ribs on its side facing the wall panel to be fastened with an undercut running in its longitudinal direction are provided, in which a fastening approach of a strip-shaped Sealing profile is used.

An advantageous further development consists in the fact that for fastening one for inspection or maintenance purposes detachable wall plate (inspection plate) at least in the case of a connection element of the frame profile only from the outside of the housing remote rib is provided.

Another useful embodiment of the invention is in that the snap connection from a slidably mounted in the approach of the corner connector, under Spring action on its outline outstanding bolt and one associated with this bolt in the frame profile for engagement opening exists.

A particularly advantageous embodiment consists in that the bolt is secured against rotation in a guide of the approach are mounted and at their outwardly protruding end with a push-on direction of the frame profiles of

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the outer surface of the approach are provided from rising end face.

Yet another advantageous embodiment is that the corner connectors with 3 to 6 at right angles mutually arranged approaches are provided and that on a group of approaches whose longitudinal axes in a common Lying level, stop shoulders provided for the ends of the frame profiles to be attached to these approaches are those facing these frame profile ends Side surfaces of the other approaches or these frame profile ends facing side surface of the other approach have a distance that the wall thickness of the frame profiles plus the height of the ribs serving as connection elements for the wall panels on this other approach or these other approaches to be attached frame profiles is equivalent to.

Yet another advantageous embodiment is that the frame side serving to accommodate an inspection plate is enclosed by frame profiles, one of which is the inspection plate for receiving a side edge of the inspection plate a cross-sectionally U-shaped fastening element turns, while the inspection plate to the other frame profiles rests on a fastening element formed from only one rib. There is still Another useful embodiment is that the edge zones of the inspection plate resting on the ribs

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are releasably connected to the ribs in a form-fitting manner, a sealing strip being arranged between the ribs and the edge zones and a pressure profile being placed on the outer surface of the edge zones facing away from the ribs at the same time. According to a particularly preferred embodiment, the pressure profile has a U-shaped or box-shaped cross section.

Yet another expedient embodiment is that with two of the outside of the device and the housing base associated frame profiles slide rails for sliding the from Housing can be connected to each receiving air treatment elements, according to a particularly advantageous embodiment the slide rails can be connected to the associated frame profiles by means of a plug connection. Most notably an embodiment in which the connection between slide rails and associated frame profiles Expansion dowel takes place, with the frame profiles associated with groups of different sizes of air treatment elements Mounting holes are provided, which are adapted to the different sizes of the air treatment elements to be installed be attached according to a corresponding hole marking system.

The inventive construction is not only the Possibility created to be able to assemble air treatment systems without large wall openings at the ^ place of installation. It There are also no transport difficulties, as the individual parts are Can be transported effortlessly, in addition, is not required in the manufacturing plant the assembly of the individual points to complete air treatment systems, so that not only working time can be saved, but also

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valuable workshop space only takes up a short amount of time is taken, so that in the area of the factory device assembly there is a total cost saving in the manufacturing plant of about 60% results, in addition, a material saving is also achieved because so far every housing an assembly was provided with its own prot'ilrahmen, while in the construction according to the invention only a rectangular frame is required at the junction between adjacent assemblies is because not individual, independently finished assemblies for the air treatment device be assembled, but because the entire air treatment device on site from individual parts is put together.

By using snap connections when connecting frame profiles and corner connectors, by using plug connections for attaching the slide rails and by holding the wall panels in U-shaped channels, hardly any tools are required for assembly. The assembly work is easy and thus largely ensures a reliable execution of the entire air treatment device. The channel shape of the fastening elements also prevents the edge zones of the wall panels from tilting with respect to their support or the seal under the influence of an internal overpressure and thus improves the seal.

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The use of slide rails for the air handling units that can be built into the subassemblies, these Devices are easy to maintain and clean. The use of plug connections for fastening the slide rails facilitates the assembly of the air treatment device in addition.

Yet another very important advantage of the invention Construction consists in the fact that the housing components and the air treatment devices are transported separately those costly measures that were previously necessary in order to be completely unnecessary at the installation site Exclude transport damage caused by vibrations, that acted on the air handling units, those already in fully assembled air treatment systems or within individual elements when using the so ~ named element construction were installed.

On the basis of the following description of an exemplary embodiment of the invention shown in the drawing this is explained in more detail.

It shows:

1 shows a schematic perspective view of an air treatment device designed according to the invention,

Fig. 2a to 2e cross sections of frame profiles for this Air treatment device,

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Fig. 3a to 3d perspective views of Eckverbin training pieces,

4 shows a longitudinal section through the approach of a corner connector corresponding to the line IV-IV in Fig. 3a,

5 shows a perspective view of a corner connection area between two adjacent assemblies,

6 shows a perspective view of a corner connection area at the end of the air treatment device,

7 with a perspective view of a corner connection area at the end of the air treatment device Inspection plate,

8 shows a perspective view of part of the floor frame with slide rails for the installation of a Air handling unit and

9a to 9e show a few examples of sealing profiles which are inserted into the undercuts of the ribs the frame profiles can be used.

In Fig. 1 is only schematically to explain the possible combinations of the construction according to the invention an air treatment center is shown, which consists of twelve spatially offset assemblies 10, 11, 12, 1.3, 14, 15, 16,

17, 18, 19, 20, 21, the assemblies 10, 12, 14;

18, 20; 11, 13, 15; 19, 21 with vertical end faces andnander connect, while the assemblies 16 and 17 connect laterally to the assemblies 14 and 15, respectively the assemblies 18 and 19 to the assemblies 16 and 17, respectively, while

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assemblies 1], 13, 15, 17, 19, 21 above the assemblies 10, 12, IA, 16, 18, 20 are arranged. The construction according to the invention allows a variety of different Combinations and the great adaptability to the spatial conditions of the machine centers in a building.

As can be clearly seen from Fig. 1, have the individual assemblies have a cuboid outer outline. In the case of the constructions according to the invention, as well as in the case of the previously known constructions, the edges of these cuboids are formed by frame profiles, the interior of the air treatment device being closed to the outside by wall panels tightly connected to the frame profiles. Since in the known constructions each assembly for. prefabricated cuboid and depending on the desired Combination of the assemblies in a specific air treatment device are assembled on a common frame or base, for example that in FIG. 1 with 22 designated frame section in the known construction from a horizontal frame part belonging to the assembly 10 and from a part parallel to the assembly 12 belonging frame section exist. As in the following It becomes clearer, in the construction according to the invention, adjacent assemblies along each frame edge or Connection edge only one common frame profile piece on, which is made possible by the fact that the housing for the air handling units is only mounted on site and the individual air handling units only at the place of use in

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this housing can be inserted. Since these devices are irrelevant to the essence of the present invention, they are neither shown in the drawing, nor have they been discussed in more detail. These are devices such as fans, coolers, air washers, filters, heating and mixing devices and the like.

The advantageous frame structure already mentioned above can be seen more clearly in detail from FIGS. In this case, FIG. 5 shows, in full lines, a frame corner connection such as that in FIG. 1, for example with V marked corner between the assemblies] 0 and 12 corresponds. There meet two who are in alignment with each other Frame profiles 24 or 26, another frame profile lying in one plane with the frame profiles 24 and 26 28 and one at the intersection of these three frame profiles 24, 26 and 28 which is perpendicular to their common plane Frame profile 30 together. In FIG. 5, two more, with the frame profiles 28 and 30, are shown in dash-dotted lines aligned frame profiles 32 and 34 entered, such Corner connection of a total of six frame profiles is required, for example, at one point, as shown in Fig. is denoted by V a. A corner connection between three frame profiles is shown in Fig. 7 and in Fig. 1 with VIt marked. Finally there is also the possibility a corner connection between five frame profiles, such a point is marked in Fig. 1 with III.

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ξ The frame profiles are secured in the corners by corresponding,

|: corner connector to a

I frame framework connected. This framework, which for the

I _I in Fig. 1 selected embodiment from this figure

ι can be taken, is on the outer surfaces by

I; Suitable wall panels are hermetically sealed.

|, The frame profiles are as square in cross section

]? Hollow profiles formed on their outer surfaces with

i Connection elements for the wall panels are provided.

From FIGS. 2a to 2e some different

· ■ profile cross-sections can be taken. The in Fig. 2a gc-

T- ¹ showed frame profile A has the already mentioned square

j cross-section and is at two mutually perpendicular)

■ Side surfaces 32 and 34 on that facing away from this angle 36

Areas 38 and 40 of these side surfaces 32 and 34 with two parallel to each other, from the side surfaces 32 and 34, respectively 'protruding at right angles, in the longitudinal direction of the profile A

extending, spaced apart ribs 42a and 42b and 44a and 44b, respectively. The distance between these ribs is chosen so that in connection with the Side surfaces 32 and 34 formed U-shaped channel profile

i a wall plate can be inserted, as it is for example

as shown in Fig. 5, 6 or 7 and marked with] and 2 respectively. At their wall plate 1 and 2 facing The ribs 42a, 42b, 44a and 44b are flanks

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provided undercuts running in the longitudinal direction, which are identified with 46 in the case of rib 42a, for example is. These undercuts serve to accommodate suitable sealing strips, some possible embodiments of which are shown in FIG. 9 and all of which have a Approach 48 have which is suitable to be clamped in the undercut 46.

The sealing profiles 50a to 50e shown in FIG. 9 differ essentially in their profiling effecting the seal, so the profile 50a is with a Tongue 52 provided, while the profile 50b has a bead-like thickening 54 and the profile 50c a brush-like Sealing profile 56 shows. The sealing profile 50d is with a wide sealing projection 58 is provided, while the profile 50e has a sealing profile 60 which extends through two longitudinal notches 62a and 62b and two lateral tongues 64a and 64b is distinguished.

The frame profile A shown in Fig. 2a is suitable for a housing edge of the air treatment device, to which no further subassembly is connected and which is to be firmly closed with wall panels, as applies, for example, to the wall panels 1 shown in FIGS. 5 and 6, which as can be clearly seen from these figures, is inserted into such U-shaped grooves.

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In FIG. 6, three such frame profiles A meet, while in the corner connection shown in FIG the two aligned frame profiles 24 and 26 are of profile type A. Also in Fig. 7 are the two horizontal frame profiles of the profile type. A.

While the profile A can be used in the edge area between two outer housing surfaces that abut at right angles, it is in the area between two parallel outer housing surfaces. surfaces and to use profile C according to Fig. 2c for wall panels that are also to be permanently installed. In this profile, the ribs 42a and 42b or 44a ¹ and 44b ¹ , which are arranged in pairs, are arranged on mutually parallel side surfaces 32 and 35, respectively. In each case adjoining a side surface 37 lying between them. Profiles of the profile type C can be seen in its application from FIG.

If the rectangular wall panel 1 on all four sides in a U-shaped channel between two parallel ribs 42a, 42b, or 44a and 44b or 44a 'and 44b * inserted, then after the connection of the ribs having these Frame profiles to form a fixed frame structure, this wall plate 1 can no longer be detached from the housing. Since the case enclosed air handling units but occasionally require maintenance or inspection, detachable wall panels, so-called inspection plates are provided. These are wall panels 2. These wall panels can with one side edge in one of the mentioned U-shaped

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Gutters are plugged in, while the edge zones of the other three sides of the plate just rest on corresponding ribs from the outside and are releasably connected to them, for example by fastener 45. Profiles B (Fig. 2b), D (Fig. 2d) and E (Fig. 2e) are used for this purpose. These Profiles differ from the already mentioned profiles A and C only in that one or both of the connection elements one of the ribs is removed, so that the associated inspection plate with its edge zone on this rib and lifted off the rib at right angles to the support surface can be. These individually standing ribs are shown in Fig. 2b with 70, in Fig. 2d with 72 and in Fig. 2e with 74 or marked. Fig. 7 shows the attachment of an inspection plate 2, preferably the lower horizontal edge of the inspection plate 2 at a corresponding, horizontal extending frame profile 80, in this case the profile type A is assigned a channel-shaped connecting element 82, so that the inspection plate 2 can be easily inserted into this channel from above. The other edge zones of the Inspektiorisplatte 2 is on the corresponding frame profiles, of which the frame profile 84 "of profile type B is shown in FIG. 7, each associated with a single rib 70, which is set back somewhat with respect to the profile edge 86. It is also in this one If the undercut 46 for receiving the sealing strip faces the inspection plate 2. The inspection board will against the sealing profile inserted into the undercut 46

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and rib 70 by any suitable means, ζ. B. cam or screws, clamped, with profile strips 88 can be arranged along these other edge zones in order to visually create the impression of the outer ribs 42a, 44a, or 44a ¹ .

By loosening the fasteners it is at any time possible to detach the inspection plate 2 from the housing, so that the inside of the air treatment device becomes accessible.

As already mentioned and as can be clearly seen from the drawing, the various frame profiles have a square cross-section, the inner cross-section of all frame profiles being the same. The corner connections are made by suitable corner connectors hergostr .Ll.t, shown in Figures 3a to 3d. Corresponding to the number of three to six they meet in a corner of the frame Frame profiles are the corner connectors with equipped with a corresponding number of approaches that are all identified by the uniform reference numerals 90 and 92, respectively. To explain the basic structure of these corner connectors, the corner connector I will now be explained in more detail, which is shown in Fig. 3a and serves to connect three frame profiles. Every clor Approaches 90 and 92 can be assigned a longitudinal axis 94, 96 or respectively, these longitudinal axes being in a common one Cut intersection point S at right angles.

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The free ends 100, 102 and 104 are each equidistant from the point of intersection S. To make it easier for the frame profiles to be pushed on, the ends of the extensions 90 and 92 adjacent to these end faces 100, 102 and 104 are slightly beveled, as is indicated by 106 on extension 90, for example. As can be clearly seen from Approach 90. The shortening is brought about by the abutment shoulders 92 associated with the shoulders 92, which are suitable for interacting with the end of the frame profiles to be slid on. As can be easily ascertained when comparing Fig. 3a with the further corner connecting pieces II, III and IV shown in Figs Approaches 92 summarized, i. E. to a group of approaches, the extension length of which is limited by corresponding shoulders 112. The reason for this can easily be seen from FIGS. In order to avoid that the connection elements formed by the ribs 42a, 42b, 44a, 44b, 44a ¹ , 44b ¹ , 70, 72, 74 and 76 have to be mitred, the stops 112 ensure that two of them meet at right angles Frame profiles one rests on the other in such a way that

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the ends of the ribs of one frame profile sit on the free upper edge of the ribs of the other frame profile, wherein the cross-sectional reinforcement effecting the shoulder 112 at the corner connectors I to IV corresponds to the outer contour of FIG Frame profile is adapted, so that overall a seamless and aesthetically pleasing construction as possible results.

In order to simplify assembly, a snap connection is used to attach the frame profiles to the corner connectors provided, each of at least one spring loaded over the outline of the respective approaches 90 or 92 protruding bolt, the corresponding locking notches or notches on the frame profiles A to E Locking openings are assigned. It can be a simple hole, such as the one shown at 120 is shown in FIG.

This locking arrangement can be seen from FIG. The approach 92 is provided with a sack-shaped bore 146, a compression spring 150 is seated on the bottom 148 and through a bolt 152 is tightened. The bolt is provided with a longitudinal groove 154 delimiting its stroke, into which a from the end face 102 of the extension 92 from inserted pin 156 protrudes.

The bolt is thus secured against rotation, but can be moved in the longitudinal direction. The outward-facing face

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158 of the bolt 152 is inclined so that it is of the outer surface 142 of the lug 92 rises in the direction of the shoulder 112. Thus, for example, the The frame profile A shown in FIG. 4 can be pushed effortlessly onto the extension 92, with the latch 152 initially shown in FIG the interior of the bore 146 is pushed back until a Locking hole or opening 144 of the frame profile in the area of the bolt 152 arrives and the bolt jumps into this hole. The hole intended for the latch 146 is arranged in such a way that locking takes place when the frame profile A reaches the shoulder 112 Has.

Slide rails 160 are provided to accommodate the air treatment devices to be inserted into the air treatment device. These slide rails are designed at their ends, as can be seen at 162 in FIG. 8, in such a way that they can adapt to the profile of the frame profiles. Since connection elements 82 with two parallel ribs will always be found on the _{frame profiles y} delimiting the bottom of an assembly, as explained above with reference to FIG on two mutually right-angled side surfaces of the corresponding frame profile and also on the sides of the ribs of the connection elements facing it. This results in a

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stable mounting of the slide rails and at the same time reinforcement of the frame structure. Preferably they are Slide rails 160 prepared for connection to the associated frame profiles by means of a plug connection.

|; For example, both the frame profiles can be

speaking mounting holes 164 as well as the slide
rails may be provided with mounting holes 166, wherein

t the form-fitting connection through simple expansion dowels

K 168 can be effected. For different air handling

I 'lungsgeräte is possibly a different distance or a different arrangement of the slide rails 1: 160 required, which is why the associated frame profiles

ν with the different slide rail arrangements

■ fitted groups of holes can be provided, such as

this is shown in FIG. For easier assembly, ■ y the groups can be identified with appropriate symbols or numbers

be drawn.

The construction according to the invention enables air treatment systems with optimal adaptation to the spatial conditions and without the requirement of special To build wall breakthroughs, with the assembly on

] Place of use through the use of prefabricated and by

Plug connections of assemblable parts can be carried out without tools. The construction is like this designed so that a particularly great tightness is achieved. The air losses can be further reduced by the many possible variations in the arrangement. because

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namely, the individual assemblies can not only be arranged in a row, but, if it is the spatial Allowing conditions, also side by side and / or on top of each other, can with a given extent of the overall situation the free edge length can be kept relatively small. Since leakage losses occur in particular along the edges, means this an additional gain in tightness.

Since in the construction according to the invention, the housing components and the air handling units are transported separately to the place of use As already mentioned, there is the additional advantage that no special safety precautions are taken against the effects of vibrations must be, as is the case when entire air handling devices that come out in enclosures mounted air handling units are to be transported. In these known constructions there is always the risk of additional leaks caused by transport vibrations in addition to the already existing leaks leaks arise.

Because of the special design of the corner connectors, the individual frame profiles butt against each other but also the manufacture of the frame sections much simplified. The individual frame sections can be made of strand material through at right angles to the longitudinal axis guided cuts are separated, whereupon only the locking holes have to be made.

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More cumbersome work, like ζ. B. cutting and customizing mitres are not required.

Despite the particularly simple assembly, the air treatment devices according to the invention are characterized by a elegant, yet stable and particularly airtight and also inexpensive design.

Expectations:

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Claims (1)

Il ti J * Il · » - 24 - 1982 Claims; 1. Air treatment device, in particular ventilation or air conditioning device, consisting of a composite combination individual cuboid assemblies, such as fan part, cooler part, air scrubber part, filter part, heating part, mixing part, Exhaust air part, etc., in which the individual assemblies from the respective air treatment devices and each one of these enclosing cuboid housing exist, the housing of the individual assemblies are connected to one another in an airtight manner, characterized in that the housing is made of frame profiles (A, B, C, D, E), corner connectors (I, II, III, IV) for the frame profiles, wall panels (1, 2) and sealing profiles (50a, 50b, 50c, 50d, 50e) are assembled between wall panels and frame profiles so that they can be dismantled, and common housing edges neighboring assemblies are each formed by a common frame profile. 2. Apparatus according to claim 1, characterized in that on the frame profiles (A to D) and the corner connectors (I to IV) snap connection elements (152, 144) assigned to one another are arranged. 3. Device according to one of the preceding claims, characterized in that the frame profiles (A to E) as Hollow profiles are formed, and the corner connectors (I to IV) are provided with lugs (90, 92) fitted into the cavity of the frame profiles. - 25 - 25 - 1981-82 4. Apparatus according to claim 3, characterized in that the frame profiles (A to E) have an im have a substantial square cross-section. ; i 5t device according to one of the preceding ; Proverbs, characterized in that the frame profiles | i (A to E) on two outer surfaces (32, 34; 35) with a connection elements (42a, 42b, 44a, 44b; 44a ¹ , 44b ', 70, 72, 74, 76) for the wall panels (1, 2) are provided. 6. Apparatus according to claim 5, characterized in that the connection elements for the wall panels (1, 2) of two together with the outer surface (32, 34, 35) of the frame profile form a U-shaped channel in cross section, in the longitudinal direction of the frame profile to each other parallel ribs (42a, 4 2b, 44a, 44b, 44a ¹ , 44b ¹ ). 7. Apparatus according to claim 6, characterized in that that the ribs are attached to their the Wall plate (1, 2) facing side is provided with an undercut (46) running in its longitudinal direction are, in which a fastening lug (48) of a strip-shaped Sealing profile (50a to 5Oe) can be used. 8. Device according to one of claims 6 or 7, characterized in that for fastening one to Detachable wall plate for inspection or maintenance purposes - 26 - 7514034 3/31/77 - 26 - 1981-82 (Inspection plate 2) at least one connection element of the frame profile (B, D, E) only the rib (70, 72, 74, 76) facing away from the outside of the housing is provided. 9. Apparatus according to claim 2, characterized in that the snap connection consists of one in the extension (92) of the corner connector (I to IV) slidably mounted bolt protruding over its outline under the action of a spring (1.52) and there is an opening (144) associated with this bolt in the frame profile for engagement. 10. The device according to claim 9, characterized in that that the bolt (152) is secured against rotation in a guide (146) of the extension (92) and is mounted on his outwardly protruding end with one in the pushing-on direction of the frame profiles (A to E) from the outer surface of the approach rising end face (158) is provided. 11. Device according to one of the preceding claims, characterized in that the corner connectors (i to IV) are provided with three to six at right angles to each other lugs (90, 92), and that on one Group of lugs (92), the longitudinal axes of which extend in a common plane, stop shoulders (112) for the ends the frame profiles (A to E) to be attached to these approaches are provided, the side faces of the other approaches (90) or the side faces facing these frame profile ends - 27 - 7514034 3/31/77 - 27 - 1981-82 these frame profile ends facing side surface of the other approach have a distance that corresponds to the wall thickness of the frame profiles plus the height of the ribs (42a, 42b, 44a, 44b, 44a ', 44b ¹ , 70, 72) serving as connecting elements for the wall panels (1, 2) , 74, 76) corresponds to the frame profiles to be attached to this other approach or these other approaches. 12. Device according to one of the preceding claims, characterized in that the frame side serving to receive an inspection plate (2) is from Frame profiles is enclosed, one of which is the inspection plate for receiving a side edge of the inspection plate a cross-sectionally U-shaped fastening element (42a, 42b, 44a, 44b, 44a ', 44b') turns while the inspection plate rests on the other frame profiles on a fastening element formed from only one rib (70, 72, 74, 76). 13. The apparatus according to claim 12, characterized in that the edge zones of the inspection plate resting on the ribs (2) are releasably connected to the ribs in a form-fitting manner, with a sealing strip between the ribs and the edge zones (50a to 50e) and at the same time placed a pressure profile (88) on the outer surface of the edge zones facing away from the ribs is, - 28 - 7514034 31.0177 - 28 - 1981-82 14. The device according to claim 13, characterized in that the pressure profile (88) has a U-shaped or box-shaped Has cross section. 15. Device according to one of the preceding claims, characterized in that with two of the outside of the device and the frame profiles assigned to the GehMuseboden Slide rails (160) can be connected to slide on the air treatment elements to be accommodated in each case by the housing. 16. The device according to claim 15, characterized in that that the slide rails (160) through a plug connection (166, 168) with the associated frame profiles are connectable. 17. The device according to claim 16, characterized in that that the connection between slide rails (160) and associated frame profiles by expansion dowels (168) takes place, with the frame profiles associated with groups of different sizes of air treatment elements Mounting holes (164) are provided. 7514034 31.0177