WO2009007082A1

WO2009007082A1 - Fastening element for fixing a pipeline to a support structure

Info

Publication number: WO2009007082A1
Application number: PCT/EP2008/005528
Authority: WO
Inventors: Michael Korff
Original assignee: Michael Korff
Priority date: 2007-07-06
Filing date: 2008-07-07
Publication date: 2009-01-15

Abstract

The invention relates to a fastening element (10) for fixing a pipeline (16) to a support structure, having at least one thermally decoupling support element (12) which surrounds the pipeline (16) at least in regions, at least one fixing element (20) for attaching the support element (12) to the pipeline (16), and connecting means (30) for connecting to the support structure. The invention is characterized in that the contact surface (18a) of the support element (12) extends over an angle of up to and including 180˚.

Description

Fastening element for fixing a pipeline to a support structure

The invention relates to a fastening element for fixing a pipeline to a support structure according to the type specified in the preamble of claim 1.

From the prior art fasteners for pipes are known, which are made of a commercial

Pipe clamp with metallic clamps are made, between the metallic clamps and the pipe to be fastened for insulation a rubber or silicone insert is used. Especially at extremely low and extremely high temperatures in the range of -196 degrees Celsius and +200 degrees Celsius rubber or silicone inserts are unsuitable because they represent thermal bridges, become porous and thus have a short life.

From DE 299 10 505 Ul a generic fastener is known, which serves for fixing a pipe to a support structure, such as a wall, rail, frame or the like. The fastening element comprises two at least partially enclosing the pipeline thermal insulation elements, which are constructed in two layers and completely surround the pipeline. The closest to the pipeline Layer consists of a thermally stable, closed-cell rigid foam, for example of glass or acrylic hard foam. The outer layer consists of a closed-cell polyurethane foam having a surface with high diffusion resistance factor. In addition, at least one fixing element in the form of a clamp consisting of two semicircular brackets is provided for fixing the insulation elements. About the formed at the free ends of the clamp tabs, the brackets are connected and clamped the clamp. This clamp is connectable via a bolt with the support structure. The pipe facing inner surfaces of the insulating element are completely coated with synthetic rubber. This rubber has the job of

Sound decoupling between pipeline, insulation element and fixing element. In addition, the rubber film also ensures a vapor-tight covering of the insulation elements on the pipeline as well as protection of the pipeline from damage during installation of the fastening element.

In addition to the arrangement of the pipes by means of the generic fastening elements, the pipelines are also thermally insulated in order to keep a temperature exchange with the environment low. The fastening elements on the one side and the thermal insulation on the other side together should ensure a small temperature change of the medium to be transported in the pipeline.

A problem in addition to the just mentioned thermal insulation of the pipeline, the prevention of heat Bridges through the fasteners, the sound insulation of the pipe relative to the support structure, but also the protection of the pipe during assembly of a fastener, the assembly of the pipe by means of the fasteners on itself. Since such pipes on the fasteners usually on ceilings, walls or the like takes place, so not easily accessible places, the installation must be easy. Also, from the viewpoint that a pipe is fixed by means of numerous fasteners to the support structure, a simple assembly is necessary for cost reasons.

From the unpublished DE 10 2007 031 684 of the applicant, a fastener is known, which comprises at least two insulation elements, which is held by clamping against each other and with the pipe via a quick fastener by a fixing element while the pipe substantially completely surrounds. For some applications, however, this embodiment is too expensive.

The invention is based on the object, a fastener according to the specified in the preamble of-claim 1 type such that the thermal properties of the insulation obtained and the static functions are met while the effort to mount the fastener is reduced.

This object is achieved by the characterizing features of claim 1 in conjunction with the features of the invention. The invention is based on the recognition that a structural unit forms the thermally decoupled carrying element, the carrying element is arranged only below the pipeline and the pipeline rests on the insulating element. This ensures a simple construction.

According to the invention, therefore, the support member is substantially only in the region of the lower half of

Piping arranged. In this case, the contact surface of the support member extends over an angle of up to a maximum of 180 °. The support member can be easily applied and fixed to the pipeline. The support member forms in particular a structural unit, on which rests the pipeline. The structural unit forming the support element can be constructed in one or more parts.

According to one embodiment of the invention, at least one, in particular thermally resistant, sound decoupling element is arranged at least between the pipeline and the carrying element and / or between the carrying elements. By means of the sound decoupling element, vibrations in the pipeline can be decoupled in a simple manner and nevertheless ensure a simple construction of a fastening element.

So that the fixing element is securely connected to the support element, but also the conditions for rapid assembly are created, these are positively connected with each other. Such a positive connection can be achieved according to an embodiment of the invention in that at least one support member laterally surrounds the fixing and for the support member has in section two L-shaped symmetrically arranged, profiled tabs which hold the support member on the fixing. Different mounting options arise as a result. Preferably, the tabs can be easily snapped onto fixing, whereby the support member is simply but securely connected to the fixing.

In particular, the tabs are formed of rubber profile or polyurethane foam. In this way, sufficient elasticity is present to snap on the fixing.

In order to ensure a stable attachment, the support element is adapted to the associated outer shape of the pipe to which the support member rests with its contact surface on the pipe.

According to one embodiment of the invention, the insulating element comprises two, symmetrically to a dividing plane, which extends perpendicular to the contact surface, formed side parts. As a result, the side parts with the tabs can be easily arranged on both sides of the fixing element on this and then the two side parts of the support element are connected to each other.

Preferably, the dividing plane extends centrally through the support member, so that all the side parts each other are formed accordingly. The production costs can be significantly reduced.

The two side parts of the support element in the insulation region can be detachably connected to one another between the tabs arranged on one end and the sound decoupling element arranged on the other end, without impairing the function of the support element.

According to one embodiment of the invention, the support element extends in cross-section to the pipeline over an angle of up to 90 ° around the pipeline around.

Preferably, the two side parts of the support element are reinforced in the connecting region to increase the strength of the support element. Damage to the support element during assembly or disassembly is thereby avoided in a simple manner. In particular, for the same purpose, the connection region can have receptacles for connecting means, for example a sleeve or the like.

In order to ensure a simple design of the fastening element according to the invention, the fixing element comprises a bracket, which is formed substantially U-shaped, wherein the support member rests against the base and the lower region of the two lateral legs of the U-shaped bracket. The connecting means may act to connect to the support structure in the region of the ends of the legs of the bracket.

For example, the connecting means is screwed to the support structure.

According to a further embodiment of the invention, the connecting means is formed by a U-shaped second bracket, which is connected to its base on the support structure and is connected by its legs with the legs of the bracket of the fixing element.

The connecting of the two legs of the fixing element formed as a bracket with the connecting means formed as a bracket can be achieved in that a rod which passes through both ends of the bracket of the fixing and engages the connecting means on the rod. The rod can also pass through the bracket of the connecting means.

The sound decoupling element can be formed, for example, by a rubber layer in the form of a rubber film, in particular by a synthetic rubber film. In any case, it is recommended for thermally stressed pipelines to form the sound decoupling element thermally resistant. When assembled, the rubber sheet forming the acoustic decoupling element is stretched by the load imposed by the overlying pipe, thereby also providing a vapor diffusion barrier to prevent condensation. The support elements may be made of different materials, for example, be multi-layered and thereby include polyurethane.

The invention also relates to an arrangement comprising a pipeline with an insulation surrounding the pipeline and a fastening element according to the type outlined above. The insulation of the pipeline is thereby recessed in the region of the thermal support element for this.

The carrying element with the sound decoupling element can, together with the insulation of the pipeline, completely vapor-tightly enclose the pipeline in order to prevent condensation.

Preferably, both legs of the bracket protrude beyond the insulation of the pipeline on the side remote from the first support element. This results in further design possibilities of the fastener. For example, the connecting means for connecting the pipe to the support structure in the region of the ends of the bracket attack, as already stated above.

Further advantages, features and possible applications of the invention of a fastening element for fixing a pipeline to a support structure will become apparent from the following description in conjunction with the embodiments illustrated in the drawings. The invention will be described below with reference to the embodiments illustrated in the drawings. In the description, in the claims, the abstract and in the drawing, the terms and associated reference numerals used in the list of reference numerals recited below are used. In the drawing:

Figure 1 is a plan view of the fastener for fixing a pipe to a support structure according to a first embodiment of the invention.

Fig. 2 is a front view of Figure 2;

Fig. 3 is a side view of Figure 1;

Fig. 4 is a side view of the fastener for fixing a pipe to a support structure according to a second embodiment of the invention, and

5 is a front view of Figure 4.

In Figures 1 to 3, a first embodiment of the invention is shown. The fastener 10 consists of a lower, a pipe 16 partially encompassing insulating shell 12, which extends over an angle of up to 90 ° to the pipe 16 around and is arranged below the pipe. Between the insulating shell 12 and the pipe 16 is a sound decoupling element in the form of a synthetic Rubber sheet 18 introduced. The insulation shell 12 is thereby formed essentially by an insulating element.

A U-shaped bracket 20 surrounds the insulation shell 12. In this case, the insulation shell 12 is at the bottom of the base 20a of the bracket 20, but not on the vertically extending legs 20b - left - and 20c - right - on. The first insulation shell 12 is formed in the form of a partial circle segment.

The insulating shell 12 has on both sides of the bracket 20 encompassing tabs 22a, 22b, which are adapted to the outer shape of the bracket 20. About the tabs 22a, 22b, the insulation shell 12 is securely fixed on the bracket 20.

The free ends of the legs 20b and 20c protrude beyond the conduit 16 with their insulation 16b. The insulation 16b of the pipe 16 is in the range of

Insulation shell 12 recessed according to the outer shape of the insulation shell 12. The insulation shell 12 and the insulation 16b and insulation shell 12 directly adjoining the insulation shell 12 in the circumferential direction and in the longitudinal direction of the pipeline 16 completely surround the pipeline 16, so that no insulation leakage occurs. In addition, the insulation 16b is also applied directly to the insulation shell 12, so that no condensation can form. Together, the insulation 16b and the insulating shell 12 act as a vapor barrier. The free ends of the legs 20b and 20c are provided with a recess into which a threaded rod 28 connecting the two legs 20b, 20c engages. The threaded rod 28 is provided on one side with a head 28a and is secured by a screwed onto the threaded rod 28 nut 28b at the head 28a remote end.

In addition, the threaded rod 28 passes through another bracket 30, which is also U-shaped. The base 30a of this bracket 30 is provided with a recess 32 via which the fastening element 10 is screwed to a support structure. The free ends of the legs 30 b and 30 c of the bracket 30 are also penetrated by the threaded rod 30. The bracket 20 and the bracket 30 have a mutually facing U-shape, wherein the bracket 30 surrounds the bracket 20.

For assembly, the insulation shell 12 is first snapped onto the bracket 20 via the tabs 22a, 22b in the bracket 20 so that the insulation shell 12 rests against the base 20a of the bracket 20. The side of the insulating shell 12 remote from the base 20a is provided with the rubber sheet 18 acting as a sound decoupling element. The lower portion 22 of the support member 12 with the tabs 22a, 22b is formed of rubber, so that the tabs 22a and 22b snapped laterally over the bracket 20 and thereby the insulation shell 12 can be fixed on the bracket 20.

The bracket 20 with the insulating shell 12 and the rubber sheet 18 is now placed on the pipe 16, so that the rubber sheet 18 with the investment surface 18a abuts the pipe 16. Subsequently, the threaded rod 28 is pushed through the free ends of the bracket 20 and the free ends of the bracket 30 and fixed by the nut 28 b.

Either before mounting the threaded rod 28 or after mounting the threaded rod 28, the base 30a of the bracket 30 is fixed with a support structure, not shown here, for example, a wall, a rail, a frame or the like, for example screwed.

FIGS. 4 and 5 show a further embodiment of the invention. The same reference numerals were used for the same parts. The insulation shell 12 consists of two symmetrical to a dividing plane 34 which is perpendicular to the contact surface 18a of the rubber sheet 18 with the pipe 16, side parts 12a and 12b. The dividing plane 34 extends centrally through the insulating shell 12 and the contact surface 18a.

The two side parts 12a, 12b of the insulation shell 12 are detachably connected to one another in the isolation region between the lower region 22 and the rubber film 18. The two side parts 12a, 12b are reinforced to increase the strength of the insulation shell 12 in the region of the connection - reinforcing region. The connection region has for this purpose a sleeve 36 for a connection of screw 38 and nut 40 of the two side parts 12a, 12b. The tabs 22a, 22b of this embodiment are an integral part of the side parts 12a, 12b and embrace the Not iron. In addition, these are not elastic. Alternatively, the two side panels can be connected to each other differently, for example, riveted or glued.

In both embodiments, the insulation shell 12 extends around the pipeline 16 over an angle of up to 90 °.

The invention is characterized by the ease of installation and easy fixation of the insulation shell 12 in the bracket 20. In accordance with the reverse order of disassembly, which is also due to the simple construction readily possible.

The insulation shell 12 together with the rubber sheet 18 has a nearly uniform plan front and back of the fastener 10. This allows the insulation 16b for thermal insulation of the pipe 16 readily connect directly, without causing thermal bridges. Only the lower area stands out slightly. However, this does not affect the installation of the insulation 16b, since the insulation 16b of the pipe 16 does not extend so far down.

The insulation shell 12 may be constructed in multiple layers. Preferably, this polyurethane foam comprises. Instead of a rubber sheet 18, other materials can be used that allow elastic deformation, are thermally stable and act under load of the overlying pipeline as a vapor barrier. Also instead of the rubber for the lower area 22 with the tabs 22a, 22b, other elastic materials can be used, which ensure elastic deformation and thus snapping onto the bracket 30.

B θ z u g s z β i c h β n l i s t θ

10 fastening element 12 insulation shell, support element

14

16 pipeline

16b insulation of the pipeline

18 sound decoupling element, rubber foil 18a contact surface

20 stirrups

20a base of the temple

20b thighs on the left of the temple

20c leg to the right of the bracket 22 lower portion of the insulation shell

22a Lower section tab - left

22b Lower section tab - right

24

26 28 threaded rod

28a head of the threaded rod

28b nut for the threaded rod

30 more hangers

30a base of the further bracket 30b leg of the other bracket

30c thighs of the further stirrup

32 Excerpt

34 division level

36 sleeve 38 screw

40 mother

42 gain range

Claims

Patent claims

Anspruch [en] A fastener (10) for fixing a pipe (16) to a support structure comprising at least one thermally decoupling support element (12) surrounding the pipe (16) at least in regions, at least one fixing element (20) for applying the support element (12) Contact surface (18a) to the pipe (16) and connecting means (30) for connection to the support structure, characterized in that the contact surface (18a) of the support member (12) extends over an angle of up to a maximum of 180 °.

2. Fastening element according to claim 1, characterized in that between the pipe (16) and the supporting element (12) at least one

Sound decoupling element (18) is arranged.

3. Fastening element according to claim 1 or 2, characterized in that the fixing element (20) with the support member (12) is positively connected.

4. Fastening element according to claim 3, characterized in that at least one support element (12) surrounds the fixing element (20) laterally and for the support element (12) has in section two L-shaped symmetrically arranged profiled tabs (22a, 22b), which hold the carrying element (12) on the fixing element (20).

5. Fastening element according to claim 4, characterized in that the tabs (22a, 22b) are formed of rubber profile or polyurethane foam.

6. Fastening element according to one of the preceding claims, characterized in that the supporting element (12) is adapted to the associated outer shape of the pipe (16) on which the supporting element (12) rests with its contact surface (18a) on the pipe (16) ,

7. Fastening element according to claim 6, characterized in that the supporting element (12) has two, symmetrical to a dividing plane (34), which perpendicular to the contact surface (18a) of the

Carrying element (12) extends, trained side parts comprises.

8. Fastening element according to claim 7, character- ized in that the dividing plane (34) extends centrally through the support member (12).

9. Fastening element according to claim 8, characterized in that the two side parts (12a, 12b) of the support element (12) in the isolation region between the arranged on one end tabs (22a, 22b) and arranged on the other end Schallentkopplungselement (18) are releasably connected to each other.

10. Fastening element according to one of the preceding claims, characterized in that the

Carrying element (12) extends in cross section to the pipe (16) over an angle of up to 90 ° around the pipe (16) around.

11. Fastening element according to one of claims 7 to 10, characterized in that the two side parts of the supporting element (12) in the connecting region to increase the strength of the supporting element (12) are formed reinforced.

12. Fastening element according to claim 11, characterized in that the connecting region has receptacles for connecting means, for example a sleeve or the like.

13. Fastening element according to one of the preceding claims, characterized in that the fixing element comprises a bracket (20) which is formed substantially U-shaped, wherein the supporting element (12) on the base (20 a) and the lower region of the two lateral Leg (20b, 20c) of the U-shaped bracket (20) rests.

14. Fastening element according to claim 13, characterized in that the connecting means (30) for connecting to the support structure in the region of the ends of the legs (20b, 20c) of the bracket (20) engages.

15. Fastening element according to one of the preceding claims, characterized in that the connecting means (30) is screwed to the support structure.

16. Fastening element according to one of claims 13 to 15, characterized in that the connecting means by a U-shaped second bracket (30) is formed, with its base

(30a) is connected to the support structure and with its legs (30b, 30c) with the legs (20b, 20c) of the bracket (20) of the fixing element is connected.

17. Fastening element according to one of claims 13 to 16, characterized in that a rod

(28) which passes through both ends of the bracket (20) of the fixing element and engages the connecting means (30) on the rod (28).

18. Fastening element according to claim 17, characterized in that the rod (28) and the bracket

(30) of the connecting means passes through.

19. Fastening element according to one of the preceding claims, characterized in that the sound decoupling element (18) by a Rubber layer is formed in the form of a rubber sheet.

20. Fastening element according to claim 19, character- ized in that the rubber film (18) is formed as a synthetic rubber film.

21. Fastening element according to one of the preceding claims, characterized in that: the carrying element (12) consists of polyurethane.

22. Fastening element according to one of the preceding claims, characterized in that the sound decoupling element (18) is formed thermally resistant.

23. Arrangement comprising a pipeline with an insulation (16b) surrounding the pipeline (16) and a fastening element (10) according to one of the preceding claims, characterized in that the insulation (16b) of the pipeline (16) in the region of the thermal support element (16). 12) is omitted for this.

24. Arrangement according to claim 23, characterized in that the support element (12) with the sound decoupling element (18) together with the insulation (16b) of the pipe (16) the pipe (16) to prevent condensation formation completely vapor-tight enclosure.

25. Arrangement according to claim 23 or 24 in connection with claim 12, characterized that both legs (20b, 20c) of the bracket (20) protrude beyond the insulation (16b) of the pipeline (16) on the side remote from the support element (12).