Basement foundation box

FIELD: electrical engineering, basement foundation boxes for cable laying and wiring.

SUBSTANCE: proposed basement foundation box has bottom part 2 mounted on bearing floor and top part forming shaft body. Novelty is that shaft body 20 forming mentioned top part 12 of basement foundation box is shaped as casing body 13.

EFFECT: facilitated wiring and enhanced reliability of protection against impact noise.

13 cl, 3 dwg

 

The invention relates to an underground base carton containing the lower part, pre-mounted on the raw ceiling, and a corresponding upper part forming the body of the mine.

From DE 19639521 C2 famous underground Foundation box of metal, which is similar to the frame upper part is fixed by means of the adjusting bolts on the lower part, the upper trailing edge of the upper frame must be installed on a level floor screed laid. Between the lower and upper parts can be inserted prominent frame to the base box to adjust to the thickness of the subfloor. Alternative is also known to use rotating walls of wire mesh as a serving frame.

The disadvantage of these underground Foundation boxes of metal are the high costs of forming an adjustable upper trailing frame. Another disadvantage is that such clandestine Foundation box of metal does not provide insulation against impact noise. Moreover, there is no possibility of any metal conducting connection with carrying overlap either through the side wall of the protruding frame or through other props.

The underground Foundation box, according to the generic concept, known from figure 4 DE 4128116 C1. It consists of a one-piece lower part of the C synthetic material, which forms the protruding shaft of the column, and wears it formed a covers the upper part of synthetic material, which is the upper wall. Mine's column has its own closed top wall, which covered the upper part or the upper wall. The upper part of the cover essentially cylindrical side wall of the shaft of the column on which it is mounted. After you install the bottom and draping the upper part forming the body of the mine, the screed is applied to the upper part, which is located on top of the upper wall of the lower part. This screed can be applied in liquid form, as a self-leveling fluid subfloor, without any danger that the screed will penetrate into the underground base box. After the surface of the subfloor is smooth or smoothed, respectively, after hardening, seamless floor, the upper area of the upper part forming the body of the mine, is located above the layer of subfloor. This upper region of the synthetic material has such a small thickness that it may be cut off exactly on the surface of the subfloor. The wall thickness in this area so insignificant that circumcision can also be manual the m tool for example a knife or carpet cutter. Thus, it is possible to adjust the length of the shaft along the height of the subfloor without the need for pre-measuring or trimming size. After cutting mine, however, is still closed top wall of the bottom part, which is cut only after cable installation.

This is a disadvantage that as the lower part, and the corresponding upper part forming the body of the mine consist of a synthetic material and which require costly circumcision and cutting to the top and the top wall of the bottom, before you can sit down next design elements, such as, for example, the upper trailing frame, provided with a hinged lid.

Although the underground Foundation box of synthetic material softens corpus noise stronger than comparable underground Foundation box of metal, however, the protection against noise are inadequate to meet the requirements of sound insulation.

Thus, the basis of the invention is to simplify the known underground Foundation box in relation to the installation and simultaneous significant improvement of insulation against impact noise.

To solve this problem the invention provides that the body of the shaft is formed as a structural body. Rela is availa able scientific C with the invention after pre-Assembly of the lower part on the raw ceiling in the lower part of the inserted body of mine, formed as shuttering body. After curing the applied seamless floor shuttering body again removed so that only mounted on the raw ceiling of the lower part of the underground base of the box remained in the screed, which remains the Foundation hole formed through the shuttering body for underground Foundation box. The Foundation hole is closed on the upper side of the subfloor by means of the integrated unit.

The underground Foundation box according to the invention, due to the formation of the body of the mine as shuttering body, easy to install. Additionally achieved a very effective insulation against impact noise, as it does not occur conductive metal or other sound bridge between the top integrated unit and terminates in a seamless floor of the lower part of an underground base of the box, or the soffit. Thus, the declared clandestine Foundation box with the shuttering body creates a full sound isolation between the underground base frame and respectively attached base channels and embedded blocks located on top of the bottom of the subfloor, as both are fixed spatially separated from each other, and a built-in unit is attached is dissipated in the floor screed without a physical connection to embedded in screed lower part of an underground base of the box. The underground Foundation box attached by dowels to the supporting ceiling, built-in unit connected to grips with seamless floors. The design and installation of underground Foundation box prevents any cracks in the screed or the formation of irregularities between the embedded block and the floor covering when lowering or lifting the subfloor.

The underground Foundation box according to the invention enables low material consumption is significantly less costly installation of underground Foundation box in comparison with the known base boxes. As no niveliruya the height of the frame, and no need to trim or cut structural element. This eliminates time spent on leveling the frame up to the expected level subfloor, whereby errors are excluded leveling. Does not require lapping floor screed against the upper edge of the metal frame, for example an aluminum frame, or the upper part of synthetic material. The underground Foundation box and shuttering body does not depend on the height of the subfloor. In addition, there is no protruding frames is by increasing the height of the floor structure.

Further advantageous embodiments of the invention follow from the dependent claims. Structural body according to the invention can be formed as a reusable or disposable shuttering body. In particular, it is very cheap implementation disposable shuttering body made of cardboard, which on its outer side may be provided with a layer of synthetic material to protect from softening under the action of the subfloor moisture or water contained therein, and on the inner side - tear-off strap to easily remove the disposable formwork body is removable from the subfloor.

Hereinafter the invention is explained on the basis of several embodiments of the underground base of the box, as detailed on the drawings, which show:

figure 1 - exploded image of the underground Foundation box with a circular disposable shuttering body in cross section;

figure 2 - exploded image of the underground Foundation box with rectangular disposable shuttering body in cross section;

figure 3 is a section of the underground base of the box of figure 2 in position on the raw ceiling after applying the subfloor.

The underground Foundation box consists of a bottom of the Asti 2, mounted on the raw ceiling 1, galvanized steel sheet. The lower part 2 is, in particular, of the rectangular base metal sheet 3, four side walls 5 with perforated lines 4 height h of the rectangular plates 6 with a large stamped Central hole 7, the seal 8 of rubberized material and four fasteners and stud bolts 9, which are located in the corners of the base metal sheet 3 and the pads 6 and is clamped by threaded nuts 22 by tightening the sides 5 with perforated lines 4, passing vertically to the base metal sheet 3 between the base metal sheet 3 and the plate 6. Available located on the upper side of the pad 6, the ends 10 of the bolts protrude from the pads 6 on the length L, is equal to the minimum thickness seamless floor 11. The height h of the lateral sides 5 varies depending on the height of the adjacent Foundation channels 21 (figure 3) and coordinated with the height of the base of the channels 21.

Attached to the lower part 2 of the upper part 12 forming the body of the shaft 20, is formed as a single structural body 13 height H, which may be different for different height of the subfloor. In the embodiment of figure 1 structural body 13 is formed in cross section to what's window for round center hole 7 of the lining 6 of the bottom part 2 and has an external diameter D, which corresponds to the inner diameter D of the introductory Central hole 7 of the lining 6. In case formed in the cross section of the rectangular hole 7 of the lining 6 of the bottom part 2, according to figure 2, the hole 7’ pads 6’ in cross section is formed rectangular, and the opening cross-section 7’ and the cross-section of the disposable formwork body 13’ are coordinated with each other so that it closely enters the hole 7’, provided with a seal 8’.

Disposable formwork body 13, 13’ is formed from thin-walled covered with synthetic material cardboard, Styrofoam, or other materials and provided at its outer side with a layer of synthetic material (not shown), which prevents disintegration, for example, of cardboard from subfloor moisture. In addition, disposable shuttering body 13, 13’ at its inner side provided with placed in cardboard, Styrofoam or other material tear-off strap, which promotes the rupture of the casing body 13, 13’ way zipper “lightning” after curing subfloor 11, so you can easily remove the disposable formwork body 13, 13’ of base openings 17, 17’. Disposable formwork body 13, 13’ may in both cases, the implementation can be provided on its upper side protective cover 15, 15’, h is usually used to prevent the penetration of seamless floor 11 when it is applied to the bearing overlay 1.

For easy control of the minimal thickness of the subfloor 11 deposited on a support overlap 1, the free ends 10, the side plates 6, 6’, fasteners, and stud bolts 9, which connects the base metal sheet 3 and the pad 6,6’ when clamping the side walls 5, protrude from the top of the pads 6, 6’ of the lower part 2 of the length L so that the screed 11 should be applied at least to the thickness of the free length L (figure 3) bolts 9. Thus, the underground base box is guaranteed to overlap seamless floor that is required according to DIN 18 560, through education of the ends 10 of the threaded bolts 9 so that the desired overlap of the subfloor is achieved if the ends 10 of the bolts 9 are closed, at least flush seamless flooring 11. The thickness of the subfloor 11 on carrier overlapping 1 can also be more than the specified nominal dimensions (length L) of the free end 10 of the bolt 9 threaded.

The underground Foundation box fixed on the raw ceiling, in which the base channels 21 are laid in the traditional way. Disposable formwork body 13, 13’ is inserted into the top allowing you to enter the hole 7, 7’ in the cover plate 6, 6’ of the underground base of the box 2 and is closed by the protective cover 15, 15’. To connect the base of the channels 21 with p is dolinoy Foundation box provides the perforated line 4 in the side walls 5 of the lower part 2, moreover, the side walls 5 can be easily bent along the perforated lines 4, to obtain a connection with the base channels 21. Then disposable shuttering body 13, 13’ at the top is inserted into the hole 7, 7’ in the cover plate 6, 6’ of the lower part 3 and, if necessary, covered with a protective cover 15, 15’. After laying the insulation 18 on the bearing overlay 1 and stacking and curing subfloor 11 disposable shuttering body 13, 13’ is broken when using detachable sling 14 and is removed as disposable formwork. In connection with the Foundation hole 17, 17’ after laying the floor covering 19 are embedded blocks 16 as deaf or hinged cover 24 flooring with protective frame 25 by means located on the side of the grippers 23. When this is accomplished complete insulation against impact noise, because there is no conductive metal sound bridges or through the Foundation wall of the channel 21, through no missing the leveling bolts or other missing mounting to the bearing overlay 1.

In the shown embodiment, shuttering body may also be formed as a reusable formwork body, which after hardening, seamless floor is pulled out upward from the opening of the center hole.

Moreover, reusable formwork body has a wall elements, pohodami the inside or hinged, which reduce the cross-section and accordingly the diameter of the casing body, so that it again can be extracted from the opening of the center hole.

1. The underground Foundation box installed on the raw ceiling (1) bottom (2) and the corresponding upper part (12)forming a body (20) mines, characterized in that the body (20) formed as mine shuttering body (13, 13’).

2. The underground Foundation box according to claim 1, characterized in that the body (20) mines made in the form of disposable shuttering body (13, 13’).

3. The underground Foundation box according to claim 1 or 2, characterized in that the lower part (2) is provided with a Central hole (7, 7’) to insert the shuttering of the body (20, 20’).

4. The underground Foundation box according to claim 3, characterized in that the Central opening (7) of the bottom part (2) and inserted in him shuttering body (13) in the transverse cross section formed of a round.

5. The underground Foundation box according to claim 3, characterized in that the Central opening (7’) of the bottom part (2) and inserted in him shuttering body (13’) in cross section is formed rectangular.

6. The underground Foundation box according to one of claims 1 to 5, characterized in that the formwork body (13, 13’) are made of cardboard.

7. The underground Foundation box according to one of claims 1 to 5, characterized in that the formwork t is lo (13, 13’) is made of polystyrene foam.

8. The underground Foundation box in one of the pp.5-7, characterized in that the formwork body (13, 13’) is provided on its outer side with a layer of synthetic material.

9. The underground Foundation box in one of the pp.5-8, characterized in that the formwork body (13, 13’) are provided on their inner side of the tear-off strap (14).

10. The underground Foundation box according to one of claims 1 to 9, characterized in that the formwork body (13, 13’) are provided on their upper side of the protective cover (15, 15’).

11. The underground Foundation box according to one of claims 1 to 10, characterized in that the Central opening (7, 7’) of the bottom part (2) seal (8, 8’) for sealing the plug casing body (13, 13’).

12. The underground Foundation box according to one of claims 1 to 11, characterized in that the lower part (2) formed from a flat base sheet metal (3), plates (6, 6’) and side walls (5), forming the side holes connected to the base of the channels (21)and the base metal sheet 3 and the pad, respectively (6, 6’) are connected to each other by clamping the side walls (5) by means of threaded bolts (9), the free ends (10) which are spaced from the side plates (6, 6’), protrude from the cover to the length (L), is equal to the minimum thickness of the subfloor (11).

13. The underground Foundation box according to one of claims 1 to 12, characterized in that the integrated unit (16) after applying the subfloor (11) in the lower part (2) is rigidly fixed by means of clamps (23) formed in the mould body (7, 7’) the Foundation hole (17, 17’) subfloor (11).



 

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