DE10207263A1 - Connection for pipes and hoses has connecting section to accommodate two nipples with spherical head, and on inner side has connecting faces corresponding to spherical heads and on outer side has threads for swivel nuts - Google Patents

Abstract

The connection has connecting nipples(1,2) which can swivel by means of spherically formed faces and connecting faces corresponding to them. A connecting section(5) is provided to accommodate the two nipples with a spherical head(4), and on the inner side has connecting faces(6) corresponding to the spherical heads and on the outer side has threads(9) for swivel nuts(8) on both sides of an encompassing raised portion(7). Several circumferentially distributed recesses(15,12) are provided in the swivel nuts and raised portion respectively as a grip for tools.

Description

The invention relates to a connection for pipes and hoses, in which the closing nipple by means of spherical surfaces and with corresponding An end faces and by means of at least one screwable connecting element are designed to be connectable.

The known connecting elements for connecting two hose or pipe lines Sections essentially consist of nipples that can be plugged into one another a plug or screw element. There is a connection nipple for such connections provided with a ball head, while the other connection nipple one with the ball head partially corresponding receiving opening and a thread. The Ku Gel head is inserted into the opening and the union nut is used to screw the Connection bolted together in a rigid design. To improve the The tightness of such a connection is also between the ball head and the seat opening provided a seal in the form of an O-ring.

Such a connection is for hose or pipelines that can be laid in a straight line fully sufficient. Difficulties arise when the lines are certain angular arrangements or if primarily hose lines, especially high-pressure lines, even when drummed or rolled in large radii Need to become.  

The invention is accordingly based on the object of a connecting element create that at least to a certain extent adapted to technical needs with hose and pipe lines, it can be rotated, swiveled and angled availability, which can be produced with simple means, guarantees a simple solution tet.

This object is achieved in that the two, each Weil a connecting element having a spherical head featured a connecting element can be seen, the connection corresponding to the spherical heads on the inside surfaces and has threads for union nuts on the outside.

The advantage of the invention can be seen in particular in the fact that such a connection Overall, a pivotability of about 30 ° allowed, the cross section of the connector manure part is only slightly larger than the cross section of a corresponding line.

Another essential advantage of the invention lies in such an embodiment is particularly suitable for pipelines that a twisting or swiveling of the closed lines is not only possible in a corresponding radius, but the incoming line and outgoing line in different win can be performed.

In one embodiment of the invention, care is taken to ensure that the connection is established due to recesses in the union nuts with appropriate tools to be opened or closed.

In addition, an anti-rotation device is provided, which is an unintentional or avoids automatic opening of the connection.  

In an embodiment of the invention, several connecting parts can be chain-like behind be arranged one another. For such an execution, they are used together designed to be screwed into one another.

Furthermore, care is taken to ensure that for simplification and safe handling Exercise, for example when replacing or repairing the connecting part, a Auslaufsi Insurance is provided which, when unscrewing, an automatic interruption of the Media.

A special embodiment of the invention, however, can be seen in the fact that in addition to a Swivel and bendability, especially when connecting pipes, a length compensation is created by a subdivision of the Verbindungsele receiving parts in the connecting nipple and with these in turn external and internal sliding surfaces that can be connected by screwing Pipe pieces is achieved.

Several embodiments of the invention are shown in the drawings and are explained in more detail below. Show it:

Fig. 1 shows a section permitting through an embodiment of a pivotal movement of the connecting element,

Fig. 2, a connecting element fuse with a preferred embodiment of a spout,

Fig. 3 shows an embodiment for a plurality of chain-like connecting elements and

Fig. 4 shows a section through a connecting elements consisting of a plurality of screwable Seg elements.

The connecting element 5 shown as an exemplary embodiment in FIG. 1 and enabling a pivotable connection can be produced not only from steel or corresponding alloys, but also from plastic, aluminum or comparable materials, depending on the intended use.

The pipeline 3 indicated in this embodiment is firmly connected in the area of the connection nipple 1 , 2 to these via weld seams 16 . The connection nipples 1 , 2 have ball heads 4 , which have connection surfaces 6 to both. Pages of a connec tion part 5 correspond. The connecting part 5 has on the inside between the spherical connecting surfaces 6 a short pipe section 20 corresponding to the line cross section, the outside diameter of the connecting part S being only slightly larger than the pipe or hose line cross section.

On both sides of the ring-like elevation 7 , threads 9 are arranged on the connecting part 5 , onto which the union nuts 8 can be screwed on. The union nuts 8 have curved surfaces 11 on the inside in addition to the corresponding thread, which in the assembled state of the connection also correspond to the ball heads 4 of the connection nipples 1 and 2 . To increase the tightness of the connection 4 sealing members 10, such in corresponding grooves 13 in the ball heads. B. in the form of O-rings. On the outside, the union nuts 8 have recesses 15 distributed over the circumference for engaging tools which facilitate screwing or loosening the connection. At the end of the curved surfaces 11 corresponding to the spherical heads 4 on the inside of the union nuts 8 , these have bevels 17 which allow the plug-in nipples 1 and 2 to be bent.

The elevation 7 , which runs in a ring-like manner and is provided centrally on the connecting element 5, is provided with recesses or recesses 12 distributed over the circumference. These recesses 12 , in conjunction with the webs 14 produced by a groove 13 at the end of the union nuts 8 , provide a securing of the union nuts 8. After the union nuts 8 have been fitted, ie after being screwed onto the connecting part 5 , the webs 5 can also be used Bended with the aid of a tool in such a way that they engage in at least one of the recesses 12 and thus in particular preclude accidental twisting or loosening of the union nuts 8 .

An embodiment is indicated in FIG. 3, in which a plurality of connecting elements 5 are arranged in a chain-like manner to form a corresponding bend in a hose or pipeline. For this purpose, the connecting nipples 1 , 2 at the end of the outer thread 22 with which they can be screwed into corresponding internal threads 21 of the ball heads 4 of the connecting elements 5 . In order to improve movement of the United connecting parts 5 , additional sliding rings 23 are provided on the ball heads 4 .

In FIG. 2 is a compound of connection nipples 1, 2, is indicated at the inside of the connecting element 5 is a known to be provided with a deviated well 19 outlet fuse 18.

The embodiment shown in Fig. 4 represents a connection for pipes and hoses, which not only allows the hose and pipe performance sections to be pivoted, rotated and angled, but which is also suitable for media and flow-dependent as well as external pipe influences to ensure the necessary length compensation.

The connecting element 5 receiving the ball heads 4 of the connecting nipples 1 , 2 is subdivided into different elements 24 , 25 , 26 , 28 which correspond to one another. On the one hand, a receiving the ball head 4 of the connecting nipple 1 and a corresponding Ku gel surface having receiving part 24 is provided, which on the outside has a Ge thread 9 for screwing with a union nut 8 . The receiving part 24 is provided in the direction of the corresponding receiving part 25 with an external thread 36 and with a pipe socket 31 which is offset from the diameter of the receiving part 25 and corresponds on the inside to the hose or pipe diameter.

On the other hand, a receiving part 25 is provided which receives the ball head 4 of the connection nipple 2 and is provided with cor-corresponding spherical surfaces, which, in addition to the external thread 25 for connection to the union nut 8 , is provided with an internal thread 29 on the side facing away from the connection nipple 2 . A pipe section 28 can be screwed into the internal thread 29 of the receiving part 25 and , as an inner guide part 27 , it has an outwardly directed bend 44 with an annular surface 34 and a stepped inner surface 30 and an outer surface 41 .

On the external thread 36 of the receiving part 24 , an outer tube piece 26 is screwed on, which at the end has an inward bend 43 with an annular surface 33 and an inner circumferential surface 42 . The inner and outer tube pieces 28 , 26 form an annular space 39 due to the bends 43 , 44 sliding on the inner and outer surfaces, which is provided with at least one passage opening 37 for the transport medium.

The inner diameter of the pipe section 31 corresponds to the remaining hose or pipe diameter, while ring-like pressure surfaces 40 are formed by the outer diameter. In the event of pressure changes or other effects that cause a length compensation, the lateral surface 32 of the pipe socket 31 forms a sliding surface for the corresponding sliding surface 30 of the inner tube piece 28 . At the same time, the annular surfaces 34 and 33 having bends 43 , 44 of the outer tube piece 26 and the inner tube piece 28 correspond to one another such that the outer lateral surfaces of the inner tube piece 28 and the inner lateral surface of the outer tube piece 26 form sliding surfaces. The maximum length of the axial length compensation is determined by a stop 35 on the inner lateral surface of the outer tube piece 26 . The slidingly corresponding outer and inner surfaces and the bends 43 , 44 can each be provided with corresponding sealing elements.

LIST OF REFERENCE NUMBERS

1

nipple

2

nipple

3

pipeline

4

ball head

5

connecting element

6

terminal area

7

ring-shaped elevation

8th

Nut

9

thread

10

sealing element

11

curved surface

12

recess

13

groove

14

web

15

Recess (union nut)

16

welds

17

bevel

18

drain protection

19

deviated well

20

pipe section

21

inner thread

22

external thread

23

sliding ring

24

receiving part

25

receiving part

26

outer pipe section

27

inner guide part

28

inner pipe section

29

inner thread

30

inner lateral surface

31

pipe socket

32

lateral surface

33

ring surface

34

ring surface

35

attack

36

thread

37

Through opening

38

annulus

39

annulus

40

print area

41

outer surface

42

inner lateral surface

43

angulation

44

angulation

Claims (11)

1. Connection for pipe and hose lines, in which the connection nipples are designed to be connectable by means of spherically shaped surfaces and with these corresponding connection surfaces and by means of at least one screwable connecting element, characterized in that for receiving the two connection nipples each having a spherical head ( 4 ). 1 , 2 ) a connecting element ( 5 ) is provided, which has on the inside with the spherical heads ( 4 ) corresponding connection surfaces ( 6 ) and on the outside thread ( 9 ) for union nuts ( 8 ). 2. Connection according to claim 1, characterized in that in the union nuts ( 8 ) distributed over the circumference a plurality of recesses ( 15 ) are arranged for engagement for tools. 3. Connection according to claim 1, characterized in that in a ring-like between the union nuts ( 8 ) surrounding the connecting part ( 5 ) surrounding elevation ( 7 ) a plurality of recesses ( 12 ) are arranged. 4. Connection according to claim 3, characterized in that the union nuts ( 8 ) at the screwed state with the ring-like elevation ( 7 ) adjacent ends each have a web ( 14 ) formed by a circumferential groove ( 13 ), which for prevention the loosening of the screw connection by partially bending into the recesses ( 12 ) forms a locking mechanism. 5. A connection according to claim 1, characterized in that in the connec tion part ( 5 ) within the pipe section ( 20 ) between the connection surfaces ( 6 ), a leakage protection ( 18 ) is arranged. 6. Connection according to claim 1, characterized in that a plurality of connec tion parts ( 5 ) in connection with connecting nipples ( 1 , 2 ) are chain-like one after the other, the connecting nipples ( 1 , 2 ) having external threads ( 22 ) at the end with internal threads ( 21 ) of the ball heads ( 4 ) corresponding to the following connecting parts ( 5 ). 7. A compound according to claim 1, characterized in that the screw connection through Ver with cap nuts (8) to be connected to connecting nipples (1, 2) receiving the connecting element (5) consists of two receiving parts (24, 25) is between those with the receiving part ( 24 , 25 ) by screwing ( 29 , 36 ) ver bindable an outer pipe section ( 26 ) and an inner pipe section ( 28 ) are provided which form a length compensation by corresponding sliding surfaces ( 30 , 32 , 41 , 42 ). 8. Connection according to claim 7, characterized in that with the receiving part ( 25 ) screwable inner tube piece ( 28 ) the pipe socket ( 31 ) of the ge opposite receiving part ( 24 ) overlapping and with this common sliding surface ( 30 , 32 ) is educated. 9. Connection according to claim 7, characterized in that with the receiving part ( 24 ) screwable outer tube piece ( 26 ), the guide part ( 27 ) of the inner tube piece ( 28 ) is formed overlapping, one at the end of the tube piece ( 26 ) arranged, an annular surface ( 23 ) forming inward from angle ( 43 ) on the outer surface ( 41 ) of the inner tube piece ( 28 ) and the outward, an annular surface ( 34 ) forming angled portion ( 44 ) on the inner surface ( 42 ) of the outer pipe section ( 26 ) slide. 10. The connection according to claim 7, characterized in that the annular space ( 39 ) formed between the inner and the outer tube piece ( 26 , 28 ) is provided with at least one passage opening ( 37 ). 11. The connection according to claim 7, characterized in that the annular space ( 38 ) formed between the inner pipe socket ( 31 ) of the receiving part ( 24 ) and the outer pipe piece ( 26 ) is provided with a ventilation valve.