DE3241733C2 - Device for connecting two pipe ends - Google Patents

Description

Clamp by means of which the plug-in part and the socket part are pushed together when the device is closed. Socket part and plug-in part against pulling apart, the disadvantage here is that the clamp when closing

hen are secured in the axial direction, and tilt with each Ben towards the plug-in part or the socket part because of an inclined surface on the plug-in part and on the socket, especially if the friction occurs on one part in such an arrangement that the flanges sloping surface is larger than on the other, which is both When closing the same clamp on the 15, for example, due to damage or contamination assigned inclined surface and the socket can be caused, push the pin part and the plug-in part together in the axial direction, characterized in that that the end face of the socket part (18, 26) facing the plug-in part (12) when the device is closed ment to a pushing together of the plug-in part (12) and socket part (18, 26) limiting stop (14, 23) that the stop pushes through the inside of the flange engaging the plug-in part (12)

(23) or by an outer annular collar (14) of the type mentioned 25 is effected by inclined surfaces% e ° - Plug-in part (12) is formed and that when closed there is not even a slight relative mobility

Although it is known per se from DE-OS 22 09 117, in a device serving to connect two pipe ends with cylindrical sealing surfaces between Plug-in part and socket part to provide an axial displaceability of the pipe ends to be connected to one another. However, if the sealing surfaces have a conical shape and the compression of the male part and mustache! as in the case of a device at the beginning

Device in the axial direction relative mobility between the pipe ends (10, 11) remains.

2. Device according to claim 1, wherein the socket part in a fixed at the associated pipe end Ring collar and a sliding sleeve that surrounds it and is movable in the axial direction on the pipe end is divided, characterized in that the inside of the sliding sleeve (18) in the area of the The annular collar (17) and the annular collar (17) sieve cylindrical, the plug-in part (12) and the sliding sleeve (18) however, have conical circumferential surfaces (15) in the area of the plug-in part (12).

3. Apparatus according to claim 1 or 2, characterized in that the outer circumference of the socket part (18, 26) is provided with a support (24), which when the device is closed than between Socket part (18,26) and clamp (22) acting support is used.

4. Device according to one of the preceding claims, characterized in that the support (24) is located on a region of the socket part (18, 26), the cross section of which is in the direction of the The end face of the socket part (18, 26) tapers conically.

5. Device according to one of the preceding claims, characterized in that the socket part (18,26) consists of hardened material.

between the pipe ends, which is very disadvantageous. The plug-in part and the socket part can even jam and be difficult to separate from each other, even if the sealing surfaces or peripheral surfaces on the plug-in part and is conical on the socket part. The latter also requires an increased technical effort.

It was therefore the object of the present invention to design a device of the type mentioned at the outset in such a way that that even when the plug-in part and the socket part are pressed together by the clamp with the help of Inclined surfaces an axial mobility of the pipe ends against each other is guaranteed.

To achieve this object, it is proposed according to the invention that the end face facing the plug-in part of the socket part when closing the device on a pushing together of the plug-in part and The stop limiting the socket part abuts so that the stop engages through the inside of the plug-in part

the flange or is formed by an outer annular collar of the plug-in part and that when the device is closed Relative mobility between the pipe ends remains in the axial direction.

While in the aforementioned known device after closing the clip and plug-in part Muffenieil are firmly pressed against each other, is the pushing together in the device designed according to the invention of plug-in part and socket part limited by the fact that the end face of the socket part against a Stop. This allows one end of the pipe to move relative to the other Pipe ends in the axial direction are possible if the device is dimensioned accordingly. The axial mobility guarantees at least a small

The invention relates to a device for connecting two pipe ends, with a socket part assigned to one pipe end, into which a plug-in part assigned to the other pipe end can be inserted, with a _{w o}

The clamp 60 surrounding the male part and the socket part is exactly the same as the pipe end to be connected

and with lateral, inwardly protruding flanges, especially when assembling from several pipe

the clamp, by means of which when the device is closed

Socket part and plug-in part are secured against being pulled apart in the axial direction, and each with one Inclined surface on the plug-in part and on the socket part in such an arrangement that the flanges of the clamp when> Close the same rest on the respectively assigned inclined surface and the socket part and the pipe parts composite pipelines has a favorable effect. Also be concerned with the manufacturing accuracy The demands are no longer so high. There is also the space provided for axial mobility possibly suitable to absorb dirt without it being pushed together Plug-in part and socket part between the actual

Sealing surfaces must remain, which leads to damage and jamming of the plug-in part in the socket part can lead.

It is known a device of the type mentioned at the beginning Kind to train so that the socket part in a fixed at the associated pipe end annular collar and a this surrounding, movable in the axial direction on the pipe end sliding sleeve is divided. For such a Execution, it is advantageous according to the invention if the inside of the sliding sleeve in the area of the Ringbuni'.cs and the ring collar itself cylindrical, the Plug-in part and the sliding sleeve in the case of the plug-in part, however, have conical peripheral surfaces.

While previously a known device, the peripheral surface of both the male part and of the collar surrounding the sleeve part have a conical shape merging into one another, facilitates the cylindrical design of the circumferential surface of the collar and the associated area of the socket part ensuring axial mobility while retaining the advantage that the conical Course of the circumferential surface of the plug-in part, the insertion and removal of the same from the socket part is favored.

To increase the load capacity of the device proposed by the invention, it is further proposed that that the outer periphery of the socket part is provided with a support that is closed when the device serves as a support acting between the socket part and the clamp. Especially with a conical design of the socket part or the sliding sleeve in the area of the plug-in part can be achieved by the conical shape The cross-sectional weakening caused by the fact that loading forces are compensated for by the support be transferred to the outside of the clamp. It is particularly favorable in this context if the stop is located on an area of the socket part, the cross section of which is in the direction of the Front face of the socket part tapers conically.

To increase the load-bearing capacity, the socket part or the sliding sleeve can alternatively or simultaneously also consist of hardened material.

Two embodiments of the invention are explained below with reference to a drawing. In detail shows

1 shows a longitudinal section through a first embodiment of the device;

F i g. 2 shows a longitudinal section through a tibia transformed Embodiment of the device.

In the embodiment according to FIG. 1, two pipe ends 10 and 11 are connected to the device. on the pipe end 10 is fitted with a plug-in part 12 which is provided with an inclined surface 13 in the rear outer region is. This is followed by an annular collar 14. The plug-in part 12 has a tapering towards the end face conical peripheral surface 15 into which a ring seal

16 is let in.

The sleeve part is divided into an annular collar 17 and a sliding sleeve 18, which with an inward protruding ring shoulder 19 engages the collar 17 from behind. The annular collar 17 is also provided with an annular seal 20 Mistake.

The sliding sleeve 18 has an arrangement corresponding to the arrangement of the inclined surface 13 on the plug-in part 12 an inclined surface 21. In the area of the collar e> 5

17 is the inner wall of the sliding sleeve 16 as well like the outer circumferential surface of the collar 17 itself is cylindrical. The one facing the face The area of the sliding sleeve 18 runs conically in one of the circumferential surface 15 of the plug-in part 12 Shape.

A clamp 22, which is provided with a flange 23 on both sides, is used to close the device The inner sides of the flanges 23 are inclined at an angle that corresponds to the inclination of the Inclined surfaces 13 and 21 corresponds.

When the clamp 22 is placed around the plug-in part 12 and the sliding sleeve 18 and closed, engage the flanges 23 on the inclined surfaces 13 and 21 and press the plug-in part 12 and the sliding sleeve 18 with the collar 17 together until the end face of the sliding sleeve 18 on the collar 14 of the Plug part 12 abuts. A further pushing together of the plug-in part 12 and and sliding sleeve 18 is then not more is possible. Like F i g. 2 reveals, an axial gap remains between the pipe ends 10 and 11, so that the pipe end 11 remains movable a corresponding distance in the axial direction within the sliding sleeve 18.

The clamp 22 can consist, for example, of part-shells which are hinged to one another and which can be closed by a lock. In that area of the sliding sleeve 18 in which the inner wall of the sliding sleeve runs conically, there is a support 24 on the outer circumferential surface, which forms a support between the sliding sleeve 18 and the clamp 22. The support 24 can not only serve to transfer loads between the socket part 18 to the clamp 22, but also facilitate placing the clamp 22 on the inclined surfaces 13 and 21 with as little tilt as possible. In the embodiment according to FIG. 2, structural parts of the device that are comparable in their function are denoted by the same reference numerals. However, there are the following differences from the embodiment according to FIG. 1:

An annular collar 25 is now placed on the pipe end 11, the circumferential surface of which is a continuation of the conical Circumferential surface 15 of the plug-in part 12 also runs conically. Accordingly, the inner wall has one Sliding sleeve 26 has a continuous conical course.

The axial dimensions of the device are chosen so that when the clamp 22 is closed, the end face the sliding sleeve 26 on the inside of the one The flange 23 comes to rest, which engages around the plug-in part 12. This leaves the two pipe ends 10 and 11 within the sliding sleeve 26 with respect to this and relative to one another in the axial direction.

The conicity of the inner wall of the sliding sleeve 26 is only relatively small. When there is a shift the pipe ends 10 and 11, however, there are differences in diameter that the effect of Ring seals 16 and 20 affect with a displacement in the direction of an increasing diameter could. There are therefore additional support rings 27 are provided that this difference in diameter in cooperation with the ring seals 16 and 20 compensate.

The support 24 is located approximately at the level of the one between the two pipe ends 10 and 11 Area. The support 24 can consist of approaches distributed over the circumference or a continuous one Ring approach exist.

List of reference numerals:

10 pipe end

11 end of pipe

12 plug-in part

13 bevel

14 ring collar

15 circumferential surface

16 ring seal

17 cuff

18 sliding sleeve

19 ring attachment

20 ring seal

21 bevel

22 clamp

23 flange

24 supports

25 ring collar

26 sliding sleeve

27 support ring ^

For this purpose 2 sheets of drawings

20th

25th

30th

35

40

45

50

55

60

65

Claims (1)

Claims: Push the plug-in part together in the axial direction. Such a device is known from DE-Gbm 82 18 354. In this device, the flanges of the clamp grip on one side an annular collar located on the plug-in part and on the other side the socket part where the inclined surfaces are located. The radially inward force generated when the clamp is closed is partially converted into an axial force on the inclined surfaces 1. Device for connecting two pipe ends, with a socket part assigned to one pipe end, into which a plug-in part assigned to the other pipe end can be pushed, with a plug-in part and the clamp surrounding the socket part and with lateral, inwardly protruding flanges on the