DEVICE FOR THE DETACHABLE CONNECTION OF A FIRST TUBULAR COMPONENT AND A SECOND TUBULAR COMPONENT

Abstract

A device for the detachable connection of a first tubular component and a second tubular component, wherein the first tubular component has a flange-like thickening in an end region facing the second component, wherein a screw nut is provided as the second tubular component which is dimensioned such that the inner opening of the screw nut can be applied over the flange-like thickening onto the first tubular component, wherein two passages located radially next to one another are provided in the outer wall of the screw nut, and wherein a flat, clamp-shaped holding component is provided, having two inner brackets corresponding to the two passages of the screw nut so that the two inner brackets can be pushed into the passages of the screw nut. The screw nut is fastened to the first component in connection with the flange-like thickening of the first component.

Claims

1. A device, comprising: a first tubular component having a flange-like thickening in an end region; a second tubular component embodied as a screw nut, wherein the screw nut has an inner diameter greater than an outer diameter of the flange-like thickening of the first tubular component such that the screw nut can be applied over the flange-like thickening onto the first tubular component, wherein the screw nut has two passages located radially next to one another in an outer wall of the screw nut; and a clamp-shaped holding component having two inner brackets that correspond to the two passages of the screw nut so that the two inner brackets can be pushed into the two passages of the screw nut and, in an assembled state, at least partially enclose the first tubular component, whereby the screw nut is fastened to the first component in connection with the flange-like thickening of the first component.

2. The device according to claim 1, wherein the clamp-shaped holding component further has two outer brackets, wherein each outer bracket is arranged parallel to each inner bracket, and wherein the two inner brackets and the two outer brackets merge into a connecting surface.

3. The device according to claim 2, wherein the two inner brackets and the two outer brackets are designed such that they have a predetermined lateral resilience.

4. The device according to claim 2, wherein, in the region which, in the assembled state, faces the outer wall of the screw nut, the connecting surface of inner brackets and outer brackets has a formation which is designed complementary to a partial region of the outer wall of the screw nut.

5. The device according to claim 2, wherein the clamp-shaped holding component has a recess within the connecting surface of inner brackets and outer brackets.

6. The device according to claim 1, wherein the clamp-shaped holding component is made of a spring steel.

7. The device according to claim 1, wherein the screw nut is a VCO screw, in particular a VCO hexagon screw.

8. The device according to claim 1, wherein, in an end region facing away from the flange-like thickening, the first tubular component is non-detachably connected flush to an end region of an inlet region or of an outlet region of a flow meter.

9. The device according to claim 8, wherein the flow meter is a Coriolis flow meter for determining a process variable of a flowing medium.

10. The device according to claim 1, wherein, in an end region facing away from the flange-like thickening, the first tubular component is non-detachably connected flush to a pipeline.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present disclosure is explained in greater detail with reference to the following figures. In the figures:

[0022] FIGS 1a-1f show three-dimensional views of the components of an embodiment of the device according to the present disclosure, partially in exploded view, and

[0023] FIG. 2 shows the components shown in FIG. 1 of the embodiment of the device according to the present disclosure when mounted on a flow meter.

DETAILED DESCRIPTION

[0024] FIGS 1a-1f show the individual components of an embodiment of the device according to the present disclosure. FIG. 2 shows the components shown in FIGS 1a-1f of the embodiment of the device according to the present disclosure when they are mounted on a flow meter 7. The figures in particular show the assembly for a Coriolis flow meter 7, the measuring components of which are arranged in the housing 21.

[0025] In the shown case, the first tubular component 2 is the outlet connection piece 5 or the inlet connection piece 5 of the Coriolis flow meter 7. The inlet and outlet connection pieces 5 are firmly connected to the housing 21 of the flow meter 7, usually by means of a weld seam 6.

[0026] The connection piece 5 at the inlet region and the connection piece 5 at the outlet region of the flow meter 7 each have a flange-like thickening 4 or a flange 4 in their free end regions. The second tubular component 3 is a screw nut (FIG. 1c, FIG. 1d, FIG. 1e), which in this case is a standardized VCO hexagon screw nut 3. The diameter of the inner opening 10 of the screw nut 3 is larger than the diameter of the flange-like thickening 4; therefore, after mounting the inlet or outlet connection piece 5 on the housing 21 of the flow meter 7, the screw nut 3 can be easily pushed over the flange 4 onto the inlet or outlet connection piece 5. This is important since the screw nut 3 is not a hindrance while welding the connection piece 5 to the housing 21 of the flow meter 7. Consequently, the length of a connection piece 5 can be dimensioned such that it is only slightly greater than the length of the screw nut 3, which advantageously increases the stability of the connection of the flow meter 7 to a customer-specific pipeline (not shown). The advantage of using a VCO screw nut 3 is furthermore clearly that a wide variety of different adapters 22 exists for the VCO standard so that there is great flexibility in terms of the connection on the customer side.

[0027] Two slot-shaped passages 14 located radially next to one another are introduced into the outer wall of the standardized screw nut 3. The passages 14 are located in the lower region of two side surfaces 13 of the screw nut 3 that lie next to one another. The passages 14 are selected and arranged such that they do not substantially impair the stability of the screw nut 3. For the purpose of frictionally connecting the inlet connection piece 5 or outlet connection piece 5 to the screw nut 3, a suitably designed clamp-shaped holding component 15 is inserted through the passages 14 (FIG. 1f). Preferably, the flat, clamp-shaped holding component 15 is made of spring steel.

[0028] The clamp-shaped holding component 15 (FIG. 1b) has two inner brackets 16 which are designed to correspond to the two passages 14 in the outer wall 11 of the screw nut 3 so that the two inner brackets 16 can be pushed into the passages 14 of the screw nut 3 and, in the assembled state, contact the first tubular component 2. As a result, the screw nut 3 is laterally/radially frictionally connected to the first component 2. The flange-like thickening 4 also achieves the frictional longitudinal connection of the two tubular components 2, 3. For centering purposes, two outer brackets 17 are furthermore found on the clamp-shaped holding component 15, wherein each outer bracket 17 is arranged substantially parallel to each inner bracket 16. In the assembled state, the outer brackets 17 contact the outer wall 11 of the screw nut 3.

[0029] The inner brackets 16 and the outer brackets 17 have a common connecting surface 19. In order to ensure the contact between the inner brackets 16 and the connection piece 5 and between the outer brackets 17 and the screw nut 3, the inner brackets 16 and/or the outer brackets 17 are designed laterally resilient. How this resilience can be designed is well known from the prior art to a technically qualified person. In the shown variant, material cutouts 18 are provided in the inner brackets 16 in the regions in which stresses occur in the event of lateral bending in the plane of the flat, clamp-shaped holding component 15. Preferably, the material cutouts 18 are located near the connecting surface 19 into which the inner brackets 16 and the outer brackets 17 merge. The clamp-shaped holding component 15 is preferably manufactured from a spring plate. In this case, it is thus a metal clamp 15.

[0030] In the region which, in the assembled state, faces the outer wall 11 of the screw nut 3, the connecting surface 19 of inner brackets 16 and outer brackets 17 comprises a formation 23 which is complementary to a partial region of the outer wall 11 of the screw nut 3. In the shown case, the formation 23 is jagged and, in the assembled state, contacts the screw nut 3 on two side surfaces 13 located next to one another, and on the connecting edge 12. This effectively prevents the metal clamp 15 from twisting with respect to the screw nut 3; the metal clamp 15 has no play or the play approaches zero.

[0031] The clamp-shaped holding component 15 has a recess 20 within the connecting surface 19 of inner brackets 16 and outer brackets 17. This recess 20 results in an improved holding function: It inhibits/prevents the fingers from slipping off the metal clamp 15 during assembly or disassembly.