DE8429896U1 - PIPE SEALING CLAMP - Google Patents

Description

VGN: 136735 18 478 P 1 / P / G 20.9.1984

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Pipe sealing clamp

The invention relates to one of two halves that can be braced with one another
existing clamp / z. B. pipe sealing clamp or slide, in which the I hhen-Wölbungsf laugh the clamp halves with an elastic
Are equipped with a lining that bridges the chip gap in such a way that
that a projection of the lining of a clamp half with a
Face against the recessed-offset face of the other clamp-half cladding occurs.

A pipe sealing clamp of this type is known from DE-GM 19 66 916. ^

There the end faces, which are offset from one another, lie in an I.

Parallels to the diametrical. The latter leads to a relatively large output f

Distance of the clamp halves in the tensioned state to a considerable f

Material jam with a tendency towards an inside out-of-round deformation,, |

so that parts of the lining close to the joint in a wave-shaped structure j

can occur, which brings the risk of an uneven seal wraparound. |

This also loads the lining connection with the clamp halves. |

The object of the invention is to provide a remedy here and to provide a pipe sealing clamp of the generic type which is simpler in terms of production technology, a
to train a high degree of density mediating manner so that the increased
Clamping pressures are transformed into an improved sealing wraparound.

This object is achieved by the invention specified in claim 1.

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The subclaims are advantageous developments of the invention Pipe sealing egg

As a result of such a configuration is a generic pipe sealing clip Created with increased utility and safety value in particular: the acute-angled alignment of the end faces replaces the previous one exclusively blunt upsetting effect a more circumferentially oriented, "pushing" overlap of the two end faces. the sealing system is more homogeneous. This also has a beneficial effect the lining attachment, which is therefore less stressed. The overlapping of the end faces lying in the circumferential direction is particularly favorable when the angled vertex of the end faces lies on the outside of the lining in relation to the plane of the clamping joint. The angled vertices are expediently located approximately in the area of the transverse plane of the clamp half tensioning screws. The structural measure that the Outer curved surface of the projection opposite the setback marginal edge the opposite half of the clamp runs backwards. This creates an advantageous alternative space for the elastically displaceable Lining compound. Finally, the invention also suggests that in the unstrained abutment position of the end faces of the The distance between the centers of the two clamp halves is smaller than the clear distance between the facing surfaces of the clamping flanges The clamp halves remain despite the form-fitting wrap-around such a post-credits supply.

The subject matter of the invention is illustrated below with the aid of a drawing illustrated embodiment explained in more detail. It shows

VGN: 136735 18 478 P 1 / P / G 20.9.1984

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Fig. 1 the pipe sealing clamp according to the invention in front view / namely unperturbed, partially broken,

Fig. 2 is a plan view of the pipe sealing clip according to FIG. 1, partially broken up and

3 shows the pipe sealing clamp in a sealed condition.

The pipe sealing shelf consists of two massive clamp halves 1 and 2. The latter are designed identically and matched to tubes with a round cross-section.

Each clamp half 1, 2 merges into outwardly directed clamping flanges 3 following the circular arch section. These extend in a slat-like manner, essentially in planes parallel to one another.

The clamping flanges have congruent openings 4 provided for clamping screws 5. The contour of the opening is square, so that a rotary drive is possible with the appropriate screw head extensions the screw bolt is prevented when tightening the clamping nuts.

Both clamp halves are provided with an elastic lining 6. The latter is the circular section-shaped curve of the clamp halves customized. The lining consists, for example, of rubber. It can be vulcanized or glued-in mats. The inside the lining 6 has sawtooth-shaped, transversely to the clamps longitudinal

VGN: 136735 18 478 P 1 / P / G 20.9.t984

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rtiittelaxse x ~ x circumferential ribs 7 on * the outwardly directed Flanks 8 of the ribs 7 are bevelled at an angle of approximately 45 ° The other flank 9 is steep, i.e. H. perpendicular to the longitudinal center axis X-X of the pipe sealing strip.

The elastic lining 6 bridges the tension joint F of the pipe sealing clamp such that a projection 10 of the lining 6 of the one clamp half 1 with its end face 11 is set back against the corresponding one End face 12 of the other clamp half lining 6 occurs. The return bears the reference number 13,

The end faces 11, 12 of both lining end zones run at an acute angle inclined to the plane E-E of the clamping joint F. The acute angle is designated with alpha. It is approx. 15 °. The angle vertex y is on the outside the lining 6, namely approximately in the area of the transverse plane of the tensioning screws 5 or a little further outside.

The corresponding inclination of the end faces leads when bracing the Pipe sealing clamp more towards an approximation that extends over the circumferential direction the near-joint lining end sections. The corresponding thrust (compare. The opposite direction arrows P in Fig. 3, where the tapered inner zone of the lining 6 opposite and the corresponding Outer zone presses clockwise) avoids highly compressed material accumulations and a related damming bead. Advantageous it also has the effect that the outer arching surface 10 ' of the projection 10 opposite the setback marginal edge 14 of the opposite The clamp half runs backwards. The bulge

VGN: 136735 18 478 P 1 / P / G 20.9.1984

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leads to the fact that the end face 11 of the projection 10 by about a third is reduced. This creates a relatively large escape space, which already has a portion of the space that is shifted when the pipe sealing clamp is tightened absorbs elastic mass. As can be seen in FIG. 3, practically hardly any lining material enters the tensioning joint F.

As can be seen in FIG. 1, the design of the clamp halves is further such that in the unstrained abutment position of the end faces 11, 12 the distance between the centers a and b of the two clamp halves 1, 2 is smaller than the clear distance ζ between the facing surfaces 3 ^{1 of} the clamping flanges 3. Thus, despite the matching, circular encircling of the inner curved surfaces of the lining 6, there is still a sufficiently large tensioning joint.

The pipe sealing clamp used to seal media-carrying lines can also be slotted on one side while maintaining the same structure Be realized sleeve, which is then applied as a so-called slide from the free end of the pipe.

All mentioned in the description and shown in the drawing New features are essential to the invention, even if they are not expressly claimed in the claims.

VGNi 136735 18 478 P 1 / P / G 20.9.1984

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Claims (1)

I f I I II ■ ■ ■ · ■ naiiii • · I t ι ο t ■ ■ ■ til «ail Ii β j ■ Melcher & Frenzen Armaturen GmbH & Co. KG., Birkenstrasse 27, 5620 Velbert PROTECTION CLAIMS 1. A clamp consisting of two halves that can be clamped together, z. B. pipe sealing clamp or slide, in which the inner curved surfaces of the clamp halves are equipped with an elastic lining bind, which bridges the tension joint in such a way that a projection the lining of one half of the clamp with an end face against the The set-back end face of the other clamp-half lining occurs, characterized in that the end faces (11, 12) are acute-angled (Angle alpha) inclined to the plane (E) of the clamping joint (F) run with it angled vertex (y) on the outside of the lining. 2. Pipe sealing clip according to claim 1, characterized in that the The angle vertices (y) are approximately in the area of the transverse plane of the clamping screws (5). 3. Pipe sealing clip according to claim 1, characterized in that the outer ^{curved surface (10 1} ) of the projection (10) relative to the recess edge edge (14) of the opposite half of the arm (1 or 2) is set back. September 20, 1984 VGN: 136735 * · · 18th 478 P 1 / P / G • ♦ ·> »■ * ■ ♦
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• ν * * * * * * · I> 1> I ItI I. I »11 1> 1 I 1 1 1 I I I 11 / 2 4. Pipe sealing clamp according to claim 1, characterized in that in the unstrained abutment position of the end faces (11, 12) the distance between the centers (a, b) of the two clamp halves (1, 2) is smaller than the clear distance between the facing Surfaces (3 ¹ ) of the clamping flanges (3). VGN: 136735 18 478 P 1 / P / G • * 4 · · Έ * 4 § t * t « September 20, 1984