Profile clamp comprising a sealing element, sealing element for a profile clamp and conduit connection assembly comprising a profile clamp of this type

Abstract

A profile clamp includes a profile strip and an annular sealing element, the profile strip having two tensioning heads which are interconnected by a tensioning element. Furthermore, a corresponding sealing element and a conduit connection assembly include a profile clamp of this type. So that the sealing element is held so that it cannot rotate on the profile clamp, the sealing element has a retaining lug which extends radially outwards and is held on the tensioning element.

Claims

1. A profile clamp comprising a profile strip and a ring-shaped sealing element, wherein the profile strip comprises two tensioning heads which are connected together by a tensioning element, wherein the sealing element comprises a radially outwardly protruding retaining lug which is held on the tensioning element, wherein the retaining lug comprises a hook with a free bent-around end which encompasses the tensioning element in part.

2. The profile clamp as claimed in claim 1, wherein the sealing element comprises at least one radially outwardly projecting projection which is arranged in the region of a recess of the profile strip.

3. The profile clamp as claimed in claim 2, wherein the projection is arranged diametrically opposite the retaining lug.

4. The profile clamp as claimed in claim 2, wherein the projection comprises an angled end portion which lies radially outside the profile strip.

5. The profile clamp as claimed in claim 4, wherein the profile strip comprises two strip halves which are connected together by a flexible bridge element, wherein the recess is formed by a spacing between the strip halves which is bridged by the bridge element.

6. The profile clamp as claimed in claim 5, wherein the radial projection of the sealing element is connected to the bridge element.

7. The profile clamp as claimed in claim 6, wherein the radial projection of the sealing element is connected to the bridge element by the angled end portion.

8. The profile clamp as claimed in claim 1, wherein the sealing element comprises at least one first radially inwardly projecting tab.

9. The profile clamp as claimed in claim 8, wherein the sealing element comprises a second radially inwardly projecting tab which is at a spacing from the first inwardly projecting tab in the circumferential direction.

10. The profile clamp as claimed in claim 9, wherein the first tab and the second tab comprise different dimensions.

11. The profile clamp as claimed in claim 10, wherein an extent in the circumferential direction of the first tab and second tab is different.

12. The profile clamp as claimed in claim 9, wherein the first tab and the second tab are arranged at a same distance from the retaining lug in the circumferential direction.

13. The profile clamp as claimed in claim 1, wherein the sealing element comprises at least one radially inwardly projecting, elastically deformable finger.

14. The profile clamp as claimed in claim 1, wherein the retaining lug has an open end that accepts the tensioning element, the open end established in part by a free end of the hook.

15. The profile clamp as claimed in claim 1, wherein the hook has a free end, and the encompassing of the tensioning element by the hook is incomplete due to the free end of the hook.

16. A conduit connection assembly comprising a conduit end on which is realized a flange, on which a profile clamp as claimed in claim 1 is arranged.

17. The conduit connection assembly as claimed in claim 16, wherein the flange comprises at least one depression in which at least one radially inwardly projecting tab of the sealing element engages.

Description

BRIEF DESCRIPTION OF THE FIGURES

(1) The disclosure is described in more detail below by way of preferred exemplary embodiments in conjunction with the drawings, in which:

(2) FIG. 1 shows a profile clamp with a sealing element in a part-tensioned state,

(3) FIG. 2 shows a profile clamp on a flange in the opened state,

(4) FIG. 3 shows a top view of the sealing element and

(5) FIG. 4 shows a side view of the sealing element.

DETAILED DESCRIPTION

(6) FIG. 1 shows an embodiment of a profile clamp 1 which comprises a profile strip 2 which is provided with tensioning jaws 3, 4 on its ends. Said tensioning jaws 3, 4 are produced as a result of bending the profile strip 2 correspondingly.

(7) The profile strip 2 comprises two strip halves 2a, 2b which are connected together by means of a bridge element 5. The bridge element 5, in this case, is arranged opposite the tensioning jaws 3, 4, which are connected together by means of a tensioning element 6 in the form of a tensioning screw.

(8) A sealing element 7 is arranged inside the profile strip 2. The sealing element 7 comprises a radially outwardly extending retaining lug 8 which is connected to the tensioning element 6 such that the tensioning element 6 is still able to move to a sufficient extent. The tensioning element 6 can thus be pivoted in relation to the retaining lug 8 and rotation of the tensioning element 6, which is necessary for tensioning the profile clamp 1, is not impeded by the retaining lug 8.

(9) The sealing element 7 additionally comprises a first radially inwardly projecting tab 9 and a second radially inwardly projecting tab 10, which are realized approximately in the region of the tensioning jaws 3, 4. The first tab 9 and the second tab 10 have different dimensions. The second tab 10 thus extends in the circumferential direction over a larger region than the first tab 9. A portion of the first tab and of the second tab 9, 10 with reference to the retaining lug 8 is, however, substantially the same such that a symmetrical arrangement is produced.

(10) The sealing element 7 additionally comprises a projection 11 which is arranged diametrically opposite the retaining lug 8. The projection 11 is situated, in this case, in the region of a recess 12 of the profile strip. The recess 12 enables the necessary elasticity of the profile strip 2 such that the profile clamp 1 is able to be bent open by a sufficient amount in order to be able to be fitted onto a flange.

(11) Both the retaining lug 8 and the projection 11 can be realized, in this case, in one piece with the sealing element 7. Both serve the purpose of locking the sealing element 7 in relation to the profile strip 2 or the profile clamp 1 against rotation. Reliable securement against displacement is obtained in this way.

(12) In addition, the sealing element 7 comprises two inwardly projecting fingers 13, 14 which are elastically deformable and can be placed under pre-tension on a flange of a conduit end.

(13) FIG. 2 shows the profile clamp 1 in the open state in which it is fitted onto a flange 15 of a conduit end. It can be seen that the sealing element 7 is additionally situated symmetrically inside the profile strip 2, being held securely by means of the projection 11 and the retaining lug 8. Rotation of the sealing element 7 in relation to the profile strip 2 is consequently excluded.

(14) FIG. 3 shows the sealing element 7 without a profile clamp 1. The one-piece design of the sealing element 7 with the retaining lug 8, the tabs 9, 10, the projection 11 and the fingers 13, 14 can be easily seen in this case.

(15) A bent end 16 of the projection 11 can be seen in the side view of the sealing element 7 shown in FIG. 4. The tensioning element 6 is engaged-around with said bent end 16 and a positive-locking fastening is thus achieved which allows the tensioning element 6 sufficient freedom of movement.

(16) The projection 11 comprises an angled end portion 17 which runs in the axial direction. Said end portion 17 is arranged radially outside the profile strip 2 and is connected to an outside surface of the profile strip 2 or to the bridge element 5. In this case, different connecting techniques can be used, for example welding, bonding or embossing.

(17) The design according to an embodiment enables secure positioning of the sealing element inside the profile clamp irrespective of the state of opening of the profile clamp. In particular when two fastening regions, namely the retaining lug and the projection, are provided, there is a very sturdy bearing arrangement. In particular, as a result of the additional tabs, securement against displacement can be effected, in this case, not only between the profile clamp and the sealing element but also in relation to the flange of the conduit end. This makes one-handed assembly possible, where the profile clamp does not need to be secured to an extra extent. The profile clamp is also securely pre-positioned on the flange of a conduit end which makes it possible to transport the conduit end together with the profile clamp.

(18) The disclosure is not restricted to one of the afore-named exemplary embodiments but rather is modifiable in diverse ways. In particular, the form of the retaining lug and/or of the projection can deviate from the representation shown. The positioning of the tabs and of the fingers can also vary significantly depending on the requirements.

(19) All features and advantages emanating from the claims, the description and the drawing, including structural details, spatial arrangement and method steps, can be essential to the invention both in their own right and in the most varied combinations. It is to be understood that the foregoing is a description of one or more preferred exemplary embodiments of the invention. The invention is not limited to the particular embodiment(s) disclosed herein, but rather is defined solely by the claims below. Furthermore, the statements contained in the foregoing description relate to particular embodiments and are not to be construed as limitations on the scope of the invention or on the definition of terms used in the claims, except where a term or phrase is expressly defined above. Various other embodiments and various changes and modifications to the disclosed embodiment(s) will become apparent to those skilled in the art. All such other embodiments, changes, and modifications are intended to come within the scope of the appended claims.

(20) As used in this specification and claims, the terms “for example,” “for instance,” “such as,” and “like,” and the verbs “comprising,” “having,” “including,” and their other verb forms, when used in conjunction with a listing of one or more components or other items, are each to be construed as open-ended, meaning that the listing is not to be considered as excluding other, additional components or items. Other terms are to be construed using their broadest reasonable meaning unless they are used in a context that requires a different interpretation.

LIST OF REFERENCES

(21) 1 Profile clamp 2 Profile strip 3 Tensioning jaw 4 Tensioning jaw 5 Bridge element 6 Tensioning element 7 Sealing element 8 Retaining lug 9 First tab 10 Second tab 11 Projection 12 Recess 13 Finger 14 Finger 15 Flange 16 End 17 Portion