CZ85993A3 - Built-in element for openings in building outer walls - Google Patents

Abstract

The opening in the outside wall of a building is filled with a framework which has perforated plates mounted across it between the inner and outer girders. At least one plate has a pivoted flap for a ventilator. There are several diagonal elements between these plates across the frame. The pivot for this flap is in a C- shaped groove at the join of one diagonal with the main girder that is aligned with the interior wall surface. All the joins have similar grooves for the installation of other flaps. ADVANTAGE - Prevents ingress of flood water and objects into ventilator opening.

Description

The invention relates to an installation element for openings in the outer walls of buildings, in particular electrical transformer or switch stations, with a flap in a frame or sheath for covering the open ventilation cross-section.

BACKGROUND OF THE INVENTION

For the ventilation of rooms, it is generally known to install such elements, also with single-flap valves, as well as with multiple slats, which in the closed state of the ventilation element lie on top of each other like scales and close the ventilation cross-section.

Among other things, the prior art includes installation elements according to DE-GM 68 04 186 with cross-sections, in a rectangular frame made of U-shaped sheet-metal troughs, welded to one another at the cross-sectional profiles. down parallel to the outer and inner frame arms. Perforated sheet fixedly connected to the front longitudinal rib, which is horizontally supported by its rear longitudinal edge constructed in an angle on the rear longitudinal rib at the bottom of the following cross-section, covers each profile surface in a cross-section from top to front. This perforated sheet must provide security against penetration by long thin objects. Transverse profiles with outwardly sloping profile surfaces prevent water ingress.

SUMMARY OF THE INVENTION

Based on the knowledge of the state of the art, the inventors have set themselves the objective of improving the installation element of the initially explained type with movable flaps and also of making it easier to manufacture. In addition, puncture safety must be increased.

The knowledge according to the independent claims leads to the solution of this task. The dependent claims show advantageous further embodiments.

The pressure relief damper according to the invention has a shoe flange formed on the damper plate, which is fitted in a longitudinal groove of a cross-member fixed between the sides of the frame and is rotatable about its axis. For a suitable number of flaps, there are more cross members between the sidewalls at a distance above each other.

According to a further feature of the invention, the crossbars on the rear side of the housing are provided with longitudinal webs on which a longitudinal groove of partially circular cross-section is formed below the profile flat obliquely from the web as an articulated bed for the flange base flange. On the second longitudinal edge of the cross member there is another longitudinal web, where the distance of the longitudinal webs at both ends of the cross member determines the width of the installation element or the frame joint.

Advantageously, the longitudinal web provided with the longitudinal groove extends above the profile surface as a free arm, and a hollow profile is formed on the inside thereof at a defined distance to the stepped portion.

In a further embodiment of the invention, the longitudinal web is provided with a longitudinal groove instead of a simple open profile angle, on the inside of which a hollow profile is also formed at a defined distance to the stepped portion. Such a cross can be pushed separately in the described form, but it is also possible to make the cross from the angles previously described.

In the latter case, additional punching of the die in production is prevented by another cross member by extruding the alloyed aluminum, preferably the components of the installation element according to the invention.

3 of the invention extruded from some alloyed aluminum alloys and then deposed.

In longitudinal uprights with a free arm, the horizontal free arm serves as a stop for the described dampers to compensate for pressure, according to another feature of the invention, the damper plate has a hooked rib at its free edge. longitudinal webs and thus in stop position freely rotatable flaps stop.

Within the scope of the invention, the use of perforated sheets as an additional puncture protection is such that the illustrated stepped portion protruding from the profile surface with the hollow profile delimits the insertion groove for a rectangular perforated sheet

Another longitudinal web of the cross member in the front member extends below the profile surface and is formed at a specified distance to this profile surface with a stepped portion which preferably surrounds the hollow profile formed on the profile surface with a groove for receiving the perforated sheet. The perforated sheet is fixed in a horizontal position between the groove and its flush groove in the upper longitudinal web of the downstream cross member.

a cross member is formed in the floor area of the built-in element, the front longitudinal web with the angle bar being the angle forming the longitudinal edge, and at the top this construction is connected to another cross-member with plate which is inserted horizontally into the lower groove of the longitudinal web formed on the hollow profile of the front longitudinal web. In this case, the longitudinal web must be in one piece with the gutter that protrudes out of the installation element.

Preferably, a horizontal profiled sheet is formed on the hollow profile of the rear longitudinal web from which an angular strip protrudes at a defined distance to the longitudinal edge to form the lower groove, which forms a cover plate for delimiting the base of the mounting element.

It is essential, without further conditions, to attach the hollow profiles, but it is particularly advantageous to form the hollow profile by means of a strip post on the inner surface of the longitudinal web and thus save weight.

In order to drain water possibly existing in the installation element, the rear longitudinal web of the cross-member, in particular lying underneath, may be provided with a retracting groove from behind to receive the retaining bridge of the attached trough, which receives and drains water.

The hollow profiles described are particularly suitable for attaching pin-like fasteners, such as screws or bolts, to attach crossbars to the frame sidewalls.

In a particular embodiment of the mounting element according to the invention, the front side thereof is covered by a perforated sheet and at a set distance to the perforated sheet, the axes of rotation for the pressure relief flaps suspended thereon are fixed parallel to each other. For this, it has been found to be advantageous if the flaps consist of a long arm beneath the trough section surrounding the axis of rotation, to which a central section is connected obliquely with an inclination angle of 120 [deg.] And a final section is connected thereto. The upper elbow between the long arm and the central section is directed towards the vertical sheet with punching on the façade, the lower elbow thus pointing towards the back of the installation element, which can also be closed by the vertical sheet with punching.

Due to the special design of the flap having a corrugated cross section, the final flap section adjoins the groove section of the adjacent flap and, in the open position, the end edge of the flap adjoins the perforated front plate. For this purpose, in the closed position of the lower pressure relief flap, a stop urophil must be associated with its lower elbow.

Significant in this embodiment is the free cross section remaining in the open position, which is determined by the distance between the knees between the lower knee and the upper knee and which is about 50 mm in length greater than the length of the central section, which is reasonably 45 mm.

Thus, two embodiments of a built-in element with pressure equalization flaps are provided, both of which solve the task set by the inventors.

Description of the drawings

Further advantages, features and details are apparent from the following description of a preferred embodiment, also by means of the drawing, which shows:

FIG. 1 shows a vertical longitudinal section through a built-in element according to the invention;

FIG. 2 is a side view in partial section of FIG. 1;

FIG. 3 is an oblique view of the part of FIGS. 1, 2;

FIG. 4 is an oblique view of another embodiment of a mounting element;

FIG. 5 is an enlarged view of FIG. 1;

FIG. 6 shows another detail of the installation element;

FIG. 7 shows a further installation element in side view;

FIG. 8 is an enlarged sectional view of a portion of a mounting element in another embodiment;

Examples

The square mounting element 10 for the opening 12 in the wall 14 of the switching station and the like has two U-shaped side walls 16 and is provided with a sealing strip 18. Between the side arms 17, which run at a distance b of about 35 mm, different extruded crossbars _2C, 22, 24. 24m,

24t, 26 which are fastened with screws 32.

Each of the crossbars 20, 22, 24, 24m, 24t, 26 is provided with at least one hollow profile 34 with a C-shaped cross-section cut by a groove 35 and also a longitudinal web 40-45 abuts the sidewall arm 17 in the installation shown. A hollow profile 34 protrudes from the longitudinal webs 40, 42, 44, 45, mounted on the post 36.

The first crossmember 20 in FIG. 1 consists of a first longitudinal web 40, shown on the left and facing the exterior wall of the building, a pillar 36 extending from its inner surface with a hollow profile 34 from its lower contour extending a horizontally fixed plate 48 of thickness. the longitudinal edge of which is adjacent to the inner surface of the adjacent second longitudinal web 42 of the following second cross-member 22 and lies on its stepped portion 52.

Above the plate 48, a hollow profile 34 protrudes from the second longitudinal web 42, which extends at a pitch θ to the stepped portion 52.

The stepped portion 52 is part of a second longitudinal form. a web 42, which is provided with a longitudinal groove 54 delimited by a circular section, which passes into a profile surface 56 'formed at an angle w of about 30 ° to the horizontal reference line

The profile surface 56 terminates at the upper edge of the third longitudinal web 41, from which a hollow profile 34 with a groove 35 ' differs from the described cross-member 20 by a greater height h, about 25 mm, of the rear longitudinal web 44, since its hollow profile 24 is still covered by an angle whose free arm 60 extends parallel to the stepped portion 52. 62, which on the one hand is placed on the support rib and in a groove 64 with a spacing formed by the hollow profile 34. The vertical spacing of the adjacent support ribs 58 is about 60 mm.

In contrast to the third crossbeam 24, in the alternatively illustrated fourth crossbeam 24m, the hollow profiles 34 are not connected by a pillar 36 to a longitudinal web 43n of another embodiment or a rear longitudinal web 44n of another embodiment, but by a pillar 36η of another embodiment whose lower surface parallel to the support the rib 58 extends from the lower point of the cross-section of the hollow profile 34.

Reference will be made in advance in FIG. 5 that the hollow profile 34 at the third longitudinal web 43 is formed together at the top of the profile surface 56 with its column 36.

In the lowest inclined fifth crossbar 24t, the free end 47 of the longitudinal web 43 of the further embodiment 43t is missing under the support rib 58. which exists in other inclined crossbars 22, 24, 24n. Instead of the perforated plate 62, there is inserted the horizontal profile plate 66 of the sixth crossbeam 26, which is formed below the hollow profile 34 of the relatively short rear longitudinal web 44 formed on its column 36. The support rib 58 of the previous fifth crossbeam extends into the lower groove 68 of this crossbeam. 24t. The lower groove 68 is delimited by the profiled sheet 66 and the shaped angle bar 70. This is formed at a specified distance from the profiled sheet edge 67 and ends with a vertical cover plate 71 that projects as a dripstone at a K-rate of about 11 mm from the sidewall 17.

Suitably, a gutter 72 is provided at the upper end of the mounting element 10 in FIG. 1, which adjoins the sidewall 17 by an angular section 73 to which an inclined surface 74 is connected, which passes into a second vertical cover plate 71h.

The vertical reinforcement strip 77 shown in FIGS. 4, 5 connects the longitudinal webs 2,44, 44n, 45 and is fastened to their rear surfaces by bolts which are inserted into the holes 27 and for the bolts.

In particular, FIG. 5 illustrates that in the longitudinal groove 54 of, for example, the second crossbeam 22, a flange 78 of the flap base 80 is inserted to compensate for pressure, which terminates in a hook. The hook rib 82 formed deflected from the flap plate 81 of the retaining position 60 of the longitudinal upright 44 in the rest position of FIG. 1 and pivots upward when the overpressure in the direction of arrow 8 occurs, so that this overpressure between the inclined surfaces of the profile.

Referring to FIG. 5, the hook rib 82 in the engagement groove 79n can engage a sealing strip 79 that is seated with a selected clamping force of its flexible material between the hollow profile 24 and the free arm 60.

The hollow profile 34 also serves to fasten the perforated plate 62 as well as to fasten the screws 32. The circular cross-section, as shown in FIG. 4, is interrupted by a longitudinal slot 37 with an opening angle n of 60 °.

In FIG. 6, the second upper arm 60 is oblique and also has a sliding groove 34 in which a retaining bridge extends which protrudes from the drip channel 76. For better overview, longitudinal bridge 44a and face 76s of the trough are shown here. This face 76s ends approximately in the middle of the holding bridge 2ž ·

In the exemplary embodiment of FIG. 7, pressure equalizing flaps 80a of another embodiment formed from a cross-section of a corrugated strip are formed between the vertical sheets 6,6,6f of the perforations at a distance b1 of the sheets and consist in one piece of a groove section 84 with a long arm 85 which has a length of α-profile measured from an axis of 30 mm, a central section 86 deviating 3e from this arm 85 by an angle of inclination of, for example, 120 °, a length a-median section of 45 mm, as well as a suitably the length a of the end section being 24 mm. The weak portion 84 is formed about a pivot axis 89 that extends horizontally at a horizontal distance m from the outer face of about 75 mm and at a distance from one another t, which is 90 mm.

The pressure relief flap 80 of another embodiment is rotatable about a pivot axis 89 from a lock to an open position. In the closed position, the terminated flap section 87 of the flap 80a adjoins the short ramp 85k downstream of the flap 80a for pressure equalization of another embodiment, as well as the lower flap 80a for pressure equalization of another embodiment adjoins the stop profile 90. vertical plate 6 ^ f with punching. Thereafter, the distance x of the elbows between the upper elbow 91 of the pressure equalization flap 80a and the lower elbow 92 of the upper adjacent flap 80a is about 50 mm.

The pressure equalization flap 80a of another embodiment is shown in FIG.

held in the closed position by the closure 94, which also takes over the operation of the described sealing strip 22, the internal pressure inside the building must separate the parts 94a from each other. 94b of the breech, so that the pressure equalization flap 80a of the other embodiment can be rotated.

Here, the lower stop profile 90 is provided with a corresponding inclined arm.

Claims (28)

1) An installation element for openings in the outer walls of buildings, in particular electrical transformer stations or switching stations, with a flap (80, 80a) for covering the open ventilation cross-section located in the frame or housing, characterized in that the flap (80, 80a) transverse to cross section of the building is rotatable on at least one perforated surface (62, 63, 63f) · Installation element according to claim 1, characterized in that the flap (80, 80a) is arranged between the perforated surfaces (62, 63, 63f) and the interior space of the building. A fitting element according to claim 1) or 2), characterized in that the flap (80, 80a) has a base flange (78) formed on the flap plate (81), which is fitted in the longitudinal groove (54) of the cross-member (22, 24). 24n, 24t) fixed between the sidewalls (16) of the frame or sheath, and is rotatable about its axis, wherein at least two flaps (80, SOa) are arranged one above the other (16). Installation element according to at least one of Claims 1 to 3, characterized in that the cross-member (22, 24, 24n, 24t) has a longitudinal web (42, 44, 44n) at the rear of the housing on which it is formed below the surface (56) a profile extending obliquely from the web (42, 44, 44n), a longitudinal groove (54) of partially circular cross-section, as a hinge pan for the flange (78) of the flap base (80, SOa). at least one of the claims 1) to 4) the profile surface (56) is also provided with longitudinal webs on the cross section (10) A mounting element as claimed in facing the mounting element 5) -11 Installation element according to at least one of Claims 1 to 5, characterized in that the longitudinal web (44, 44n) provided with the longitudinal groove (54) continues above the profile surface (56) by a free arm (60), the inner side of which is a defined distance from the stepped portion (52) provided with a hollow profile (34). Installation element according to at least one of Claims 1 to 6, characterized in that the longitudinal web (42) having the longitudinal groove (54) continues above the profile surface (56) as a rib, the inner side of which is at a specified distance from the stepped portion (52) provided with a hollow profile (34). Installation element according to at least one of Claims 1 to 7, characterized in that the stepped portion (52) protruding from the profile surface (56) delimits with the hollow profile (34) a horizontal groove (46) for the perforated sheet (62) which is located between the front longitudinal webs (43, 43n, 43t) and the rear longitudinal webs (42, 44, 44n) of adjacent crossbars (22, 24, 24n, 24t). Installation element according to at least one of Claims 1 to 8, characterized in that the flap plate (81) is provided at its free edge with a rib-like rib (82) which engages the lower arm (60) of the lower arm (60) in the rest position. adjacent longitudinal webs (44, 44n). A fitting element according to claim 9, characterized in that the hook-like rib (82) carries a sealing strip (79) or a similar flexible securing element. Installation element according to at least one of Claims 1 to 10, characterized in that the longitudinal web (43, 43n, 43t) of the cross-member (24, 24n, 24t) is formed below the profile surface (56) on the front and is provided in a defined position. a distance to this profile surface (56) by a supporting rib (53). 12 Installation element according to at least one of Claims 1 to 11, characterized in that the support rib (58) delimits a horizontal groove (46) for the perforated sheet (62) with the hollow profile (34) extending from the profile surface (56). The installation element according to claims 11j. or 12) characterized in that the support rib (58) of the longitudinal web (43t) is an arm of the angle forming the longitudinal edge. Installation element according to at least one of Claims 1 to 13, characterized in that the horizontal plate (48) which is inserted into the horizontal groove (46) of the rear longitudinal web (42, 44) protrudes from the hollow profile (34) of the first longitudinal web. other (40). Installation element according to at least one of Claims 1 to 14, characterized in that the profiled sheet (66) protrudes from the hollow profile (34) of the lower rear longitudinal web (45) and is provided with an angle bar (70) which forms at a distance to the longitudinal edge of the groove, it is provided with a cover plate (71). Installation element according to at least one of Claims 1 to 13, characterized in that the longitudinal bridge (44q) of the crossbars (24, 24n, 24t) is provided with an arm (61) in which the retaining bridge (75) of the retaining trough (75) is mounted. 76). Installation element according to at least one of Claims 1 to 15, characterized in that the third crossmember (24) is fastened to the frame sides (15) by means of fasteners, for example screws (32) Installation element according to at least one of Claims 1 to 15, characterized in that the cross-member (20, 22, 24, 24n, 24t, 26) is extruded from alloyed aluminum. - 19) An installation element according to at least one of claims 1 to 18, characterized in that the rear longitudinal webs (42, 44, 44n, 45) are connected by at least one reinforcement strip (77) An assembly element according to claim 1, characterized in that its front face is provided with a second vertical perforated sheet (63f) and at a given distance from each other the parallel pivot axes (89) of the flaps (80a) hinged thereto are fixed. Installation element according to claim (20), characterized in that the flap (80a) has a long leg (85) below the groove section (84) formed around the pivot axis (89) to which it is connected with an inclination angle (Z) (86) and attached thereto at an inclination angle (Z) on the opposite side of the final section (87). Installation element according to claim 20 or 21), characterized in that the inclination angle (Z) is about 120 °. An assembly element according to claims 20) or 22), characterized in that the upper elbow (91) between the long arm (85) and the middle section (86) points towards the second vertical perforated sheet (63f). 24. The installation element according to claims 20) to 23), characterized in that the end section (87) of the flap (80a) adjoins the groove section (84) of the adjacent flap (80a). Installation element according to claims 20) to 24), characterized in that the lower flap (80a) abuts the stop profile (90) with its lower elbow (92) formed between the middle section (86) and the end section (87). Installation element according to claims 19) to 24), characterized in that the flap (80a) in the closed position is connected to the frame of the installation element (10) by a bolt (94). - 14 Installation element according to claims 20) to 26), characterized in that, in the open position, the flaps (80a) abut their free edge (88) on the second vertical sheet (63f) and by punching. Installation element according to at least one of claims 20) to 27), characterized in that in the open position of the flap (80a), the spacing (x) of the knees between the lower elbow (92) of the upper flap (80a) and the upper elbow (91) the adjacent lower flap (80a) is greater than the length (82) of the middle section. Installation element according to at least one of Claims 20) to 28), characterized in that its front as well as its rear side are provided with a vertical plate (63 »63f) and perforations. Installation element according to at least one of Claims 1 to 29, characterized in that the flap (80, 80a) is extruded from alloyed aluminum. - 16 List of used reference marks]? ^- ----- 10 - Built-in element 12 - Hole 14 - Wall 16 - side walls 17 - side arm 18 - sealing strip 20 - first crossbar 22 - second crossbar 24 - third crossbar 24n - fourth crossbar 24t - fifth crossbar 26 - sixth crossbar 32 - screw 34 - hollow profile 35 - groove 36 - pillar 36n- pillar of another embodiment 37 - longitudinal notch 40 - first longitudinal web 42 - second longitudinal web 43 - third longitudinal web 43n- longitudinal web of another embodiment 43t- longitudinal web of another embodiment 44 - rear longitudinal web 44n- rear longitudinal web of another version 45 - lower rear longitudinal web 44q- longitudinal bridge 46 - horizontal groove 47 - free end 48 - plate 52 - stepped part 54 - longitudinal groove 56 - profile area 58 - support rib 60 - free arm b - distance b ^ - metal distance i - thickness q - pitch w - angle h - height e - vertical pitch k - measure Ϊ - arrow direction n - opening angle a ^ - profile length g - middle section length a ^ - end section length z - angle of inclination m - horizontal distance t - mutual distance x - knee distance