DE6941113U - HEIGHT-ADJUSTABLE STEEL PIPE SUPPORT - Google Patents

Description

Dipl.-lng. Hetiu Lhw, Potenlonr ^ oH D - M (HxUn 81. Cott.TXKtrafe · 81 · T «Mon: (0611) 48 38 20 HUnnebeck GmbH

4032 Lintorf be. Dusseldorf

2O.IO.I969 L / bo L 8848

Height-adjustable tubular steel support

The invention relates to a height-adjustable tubular steel support, consisting of at least one outer tube with a threaded part for fine adjustment and at least one flare or the like on the inserted part. having inner tube with hole pattern. Steel pipe supports of this type are known ( DBGm 6 902 792).

The invention is based on the object of not only ensuring that the usual clearance between the tubes pushed into one another is enlarged so as not to hinder the tubes from sliding into one another so quickly through penetrated dirt, concrete or the like, but also the production of such tubular steel supports to simplify. To solve this problem, it is proposed according to the invention to ensure that a threaded piece is fixed on the outer tube, which has an inner diameter at least in the area of its fixing plate which is smaller than the outer diameter of the flare or the like. of the inner tube. If this instruction is followed, then it is

Dipl. -Inq. Heinz ί · Μ · τ, patent attorney

D - 8 Munich 81, Cosimastra & e 81 Telephone: (0811) 48 38 20

only necessary to connect to the outer pipe,

preferably to be welded end of the threaded piece before connecting to the outer pipe so that its inner diameter is within this range of the given instructions corresponds to what, for example, by a corresponding inner diameter of the threaded piece or by Deforming the end of the threaded piece lying at the fixing point can take place. The production of a according to the invention trained tubular steel support takes place in such a way that after fixing the threaded piece on Outer tube either an inner tube as long as this is pushed through the threaded piece and the outer tube connected to it that its lower end protrudes from the outer tube, whereupon the outer diameter of the Inner tube is enlarged to the required diameter, for example by flanging, welding a Ring flange or the like., Or in that the outer diameter the inner end of the inner tube is enlarged accordingly, for example by means of a special tool. Of course, the inner tube can also be designed at one end so that the The diameter of this end is enlarged before the threaded piece after the inner tube has been pushed into the outer tube is set on the outer tube.

The invention is explained in more detail on the basis of two exemplary embodiments explained.

It shows:

Fig. 1 shows a Teilnuersohnitt by an according to the invention formed tubular steel support with a threaded piece, which in the area of its Festlegunps.stelle on the outer tube a smaller inner and outer diameter

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DipJ.-W * "H" iiu U (M ?. Patent Attorney D - 8 Montan 81, Cwimostrafc · 81 ■ T.Ufon: (0811) 43 38 20

"than in other places,

Pig. 2 shows a partial cross-section through another according to the invention formed tubular steel support with a threaded piece, the inner diameter of which at all points is the same size.

1 shows an inner pipe 2 provided with a head piece 1, which is partially pushed into an outer pipe consisting of a pipe 3 ^and a pipe section 6 welded to this pipe at 4 and provided with a thread 5. The inner pipe 2 is provided with several "passage openings 7, the pipe section 6 with two opposite elongated holes 8, so that a bolt 9 can be inserted through the inner pipe as well as through the outer pipe, which is supported on a threaded sleeve 10, which is screwed onto the thread 5 of the pipe section 6. The coarse adjustment of the length of the steel pipe support is thus effected by arranging the passage openings 7, the elongated holes 8 and the threaded sleeve 10. According to this embodiment, the inner tube 2 is provided in the area of its lower end 11 with a circumferential bead 12, which can also be replaced by flanging the lower end of the inner tube or by other means the bead 12 has a diameter d., at other points the diameter = d ^. The inner diameter of the tube 3 and the inside diameter of the pipe section 6 is denoted by D. and the smallest diameter of the outer pipe, which is also the smallest diameter of the pipe section 6, is denoted _{by D 2.} The inner tube 2 can therefore be moved well guided in the tube 3 without being able to be removed from the outer tube 3, 6 when the inner tube is connected to a head piece 1. So you can do that

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Dipl.-Irxj. Heinz L «. Patent attorney D - 8 MünoSen 81, Coiimostrafc 81 - Telephone: (0811) 48 38 20

whole outer tube 3 »6 and the whole inner tube 2 each for itself manufacture, can then push these parts into one another and the head piece 1 on the inner tube and not on the outer tube Rigidly fix the illustrated base.

The embodiment of Fig. 2 shows an inner tube 2 ' with a circumferential bead 12 'and an outer pipe, which consists of a pipe 3' and a pipe section provided with a thread 5 ' 6 *, the inner diameter of which is smaller than the outer diameter of the at all points of its extent 'Inner tube in the area of the bead 12'.

Of course, the inner and outer tubes can also be designed in a different way than the exemplary embodiment shows if only the given instruction is taken into account.

Claims (1)

Dipl-lnq. Heinz UsMr. Patent attorney D - 8 MömJien 81, Cosimartra & e 81 Telephone: (0611) 48 38 20 Claim to protection Height-adjustable steel tube support, consisting of at least one outer tube with a threaded part for fine adjustment and at least one flanged portion or the like on the inserted part. having inner pipe with a remnant hole, characterized in that a threaded piece (6; 6 ') is fixed on the outer pipe, which at least in the area of its fixing point (4) has an inner diameter D _? which is smaller than the outer diameter d. the flanging or the like. (12, 12 ') of the inner tube (2, 2')