DE7825409U1 - HOSE CONNECTION ASSEMBLY FOR FLEXIBLE LINES - Google Patents

Description

Holstein und Kappert GmbH / TV: :: V Ä * »9.8.19 78

Sheet 1 to the German Patent Office, Munich

Hose connection fitting for flexible lines

The innovation relates to a hose connection fitting
for flexible lines with one that can be inserted into the line
cylindrical support body and a cable end enveloping

lumbar cover body. . , 'j

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Screw connections or connection fittings according to the generic term |, are known in a wide variety of embodiments. So are |

for example in the electrical industry cable glands ι

Ϊ Commonly used for elastic hoses where the cable end |

J. is placed against a conical clamping ring, which is in a Ge | the thread sleeve is centered. A pressure ring can be screwed into this threaded sleeve, which is also conical at its front end, and the end of the hose
pinched. In a similar embodiment, the connects i dung piece itself conically and receives the inner sheath f

i. of the respective hose, which by an external pressure |

ring with a correspondingly conical contact surface

- ~ 'ft

is jammed. Another embodiment of hose connections 1 consists of a support body that is attached to its outer jacket
Notches is provided and its end face for the purpose of
Introduction of the tube is conical inwards. The that
The sleeve body enveloping the hose end is designed accordingly.

7825409 21.1178

All of these aforementioned designs have the disadvantage that they are particularly hygienic in the beverage industry Requirements do not meet. The respective front surface of the respective support body forms on the inside with the end of the hose there is a gap which fills with liquid that has not been properly rinsed out during cleaning can be. The liquid which has penetrated into these crevices destroys the hose material in the course of time. Above all, a source of infection is constantly forming at this point, which must be avoided. on the other hand arise from the sawtooth-like design of the thread -i> is towards the front end of the support body or of this surrounding union body unavoidable break points in the hose material.

The innovation has now set itself the task of creating a connection fitting based on the hose connections mentioned at the beginning, with which the known disadvantages are avoided and which ensures a perfectly tight seal between the inner tube jacket and the supporting body at the level of the front end. Here are damage caused by reindeer rigid \ for elastic Überganqsbereieh, f off. In addition, there should be the possibility of large f

voluminous hoses also flawlessly with the support body · | and to connect the cap body surrounding it. |

This object is achieved according to the innovation in that the {

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7825409 Z1.12.78 in connection with

Support body on its outer surface at the level of the end face has an annular web with an adjoining wide groove and is cylindrical on its further axial section is and this section is followed by a slightly conical external thread with which an internal thread of the cap body corresponds, of which the line end surrounding inner jacket is equipped with a left-hand thread.

It has proven to be useful that the flanks of the left-hand thread are sawtooth-like and further Formation of the innovation, the left-hand thread runs conically parallel to the external thread of the support body.

For better centering of the cap body, the support body a stop flange at the end of its thread. This is expediently equipped with key surfaces and / or grooves.

As part of the innovation, the free end of the support body that faces away from the line can be a flange connection or a welded socket exhibit.

In the following description, the hose fitting is explained in more detail using an exemplary embodiment shown in the drawing explained.

The hose fitting consists of the support body 1, the corresponding

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I ponding cap body 2 and the hose end 3 enclosed by both parts. By Einglie-I alteration of a flange 5, but can also be a Flanschverbin- "dung be made. At the side facing the hose end 3 'end of the support body has on its outer shell of this

1 has an annular web 6 or wide groove 7 flat at the level of the end face.

^ According to the illustrated embodiment, the one between Ring-I web 6 or wide groove 7, the remaining cross-section to the actual pipe opening is kept as small as possible. Following the wide groove

I is the support body on its further axial section 8 zy-Ii. Lindrically trained. This section 8 is followed by a slightly conical external thread 9.

\ The cap body 2 comprises a cylindrical hollow part 10

■ and the ring web 11. Inside the ring web 11 is also a thread 11 ′ is arranged which corresponds to the external thread 9 of the support body 1. The one connected to the end of the line 3

bondable inner jacket of the hollow part 10 additionally has

* - a sawtooth-like thread 12. This runs

ι parallel to the conical external thread 9 of the support body 1. The thread 12 is followed by a cylindrical section 13.

The assembly of the hose connection fitting is very easy. Next the hose end 3 in the cap body 2 to Ring web 11 introduced. Both parts are then combined, if necessary with the help of a centering body, which is

-5-

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-5-

opening of the support body 1 is guided with the support body 1 connected. Due to the conically widened opening of the hose end, caused by the correspondingly conical running thread 12, the external thread 9 of the support body 1 be brought into connection with the thread of the ring web 11. By further turning the support body with the aid of a key that can be attached to a key surface 14, the latter becomes screwed to the union body 2. There is no need to fear the inner jacket of the hose tearing open. Simultaneously the ring web 6 forms a perfect, practically gap-free seal with respect to the hose end 3. Characterized in that the ends 6, 13 of the support body 1 and the cap body directed towards the hose end 3 2 are threadless and almost cylindrical, there are sharp-edged transition areas that lead to premature Breaking the hose end at this point is avoided.

-6- Protection claims

Claims (7)

Protection claims 1. Hose connection fitting for flexible lines with an in the line insertable cylindrical support body and a sleeve body enveloping the line end, characterized in that, that the support body (1) on its outer circumferential surface at the level of the end face an annular web 6 with adjoining it Has wide groove (7) and is formed on a further axial section (8 J-cylindrically and this Sections (8) a slightly conical external thread (9) connects, with which an internal thread of the Union body (2J corresponds, whose enclosing the end of the line Iimenr «antel equipped with a left-hand thread is. - 2. Hose connection fitting according to claim 1, characterized in that the planks of the left-hand thread are sawtooth-like. 3. Hose connection fitting according to claims 1 and 2, characterized in that that the left-hand thread runs conically parallel to the external thread of the support body. 4. Hose connection fitting according to Claims 1 to 3, characterized in that that at the end of the support body outer Gewiödes a stop flange, is arranged. {7825409 12/21/78 5. Hose connection fitting according to the preceding claims, characterized in that the stop flange. . with wrench flats and / or grooves. 6. Hose connection fitting according to the preceding claims, characterized in that the repellent from the line the free end of the support body (1) has a flange connection (5). 7. Hose connection fitting according to the preceding claims, characterized in that the support body has a welded socket having. 7825409 12/21/78