DE1750399B2 - PIPE CONSTRUCTING AT LEAST TWO TELESCOPIC SINGLE TUBES EXTENDABLE TO EACH OTHER - Google Patents

Description

3. Pipeline according to claims 1 and 2, are snapped up.

characterized in that the conical 25 An advantageous design consists of the invention

aligned jacket clamping surfaces (11, 18) according to the fact that the longitudinal slot of each ring

of cylindrical, the gap (x) at an angle to the axial direction of the individual pipe,

see the Finzelrohr; n (1, 2, 3) filling, preferably roof-shaped, runs.

Sections (10, 17) of the rings (8, 14) go out. Finally there is still an advantageous solution

30 feature of the invention is that the conically aligned jacket clamping surfaces of cylindrical

thresh, go out the space between the individual tubes filling sections of the rings.

The invention relates to an at least two 35 of this configuration is one of two telescopically against one another extendable Einzelroh- or more telescopically against one another extendable ren existing pipe whose individual tubes provided in individual tubes existing pipe, dean impact limited extended position relative to each other gege binds ren individual tubes in de ^r extended position characterized The known pipelines of this type have conical clamping surfaces of the manufacturing-technical and for the use considerable gel-shaped aligned lateral surfaces of the longitudinally complicated devices to both the slotted rings as well as the restraint of the bring about the limit stop of the pull-out position as well as cause the pull-out end position. There are to bring about the restraint of this extended position. Limit stop and restraint the same construction-man uses clamping nuts on the outer tube, 45 parts are used. There is also no need for any other operator to press which clamping pieces against the wall of the pulled inner tube to tie the extended end position in order to achieve the tie. Accordingly, no additional operator is required either. Loosening and tightening must always be carried out in order to be able to use one of the clamping nuts before inserting the pipes when the extended position cancels such restraint. The degree to which Fessehar is induced or is to be repealed. 50 ment also depends on the force applied during the pull-out movement. A high-grade clamping foot inner tube, which in the extended position, which is limited by additional lung, can easily be released by snapping the two individual tubes into openings in the outer tube. A rotation lock between the two raw forces acting against one another must be used in the pushing together direction. The individual must each time a certain hand pipe only need to be carried out with an opening in the movement to be equipped with the restraint of the wall. The rings to be finished as a separate extended position Suitable, self-lubricating plastics are known, telescoping, conical, spring-loaded or resilient, self-contained or elasticity anchored with the tubes under incised, by a sleeve or the like in to use the openings of the pipe rings or sleeves, which are to the wall of the Fesse- 65. One ring comes on the outer surface ment of the pipe end sections plugged onto this and the inner pipe; the other ring will be driven to the inner Sigen each other and thus assigned to the area of the outer tube. This gives you support on the inner surface of the sleeve during the displacement of the individual pipes

3 4

tilt-free sliding movement of the same over the outer individual tube I a preferably self-sanitized sliding path. Also, when there is a lubricating plastic ring 8, the rings are assigned to the extended end position by the radial force occurring at the free end of the tube in a reinforced seat to its 1 on the inner wall of the same. The ring 8 brought to the individual tubes assigned to the s, the longitudinal slot 9, which relieves the load from the inclined cams Ψ and 9 ″ with reference to the individual tubes acting force. The ring 8 also has the additional radial force that is achieved On the inside of the Rintelt, the conically aligned casing clamping facility is brought into contact with the conical surface 11. This preferably runs into the sharp clamping surfaces Ring8 in each case section-wise spiral-shaped course of the preferably diametrically be allowed in the rings to each other gegenüberlie long ^slots: equally good _S i constricting cams 12. These cams 12 occur in public elastic radius variation for incorporation of the voltages 13 of the pipe wall. 1 The ring 8 is in rings over the longest times of use a good tube 1 According to the u ^f due to the Schlii / ung9 clamping fit without a preferred, in the axial enabled radial reduction inserted direction of the tube opposite grooves - «<eibung Adjustab - The inner elasticity of the King material would be guaranteed. The conically aligned 20 allows the cams 12 to snap into the opening 13 sections after reaching the intended shell-Kk-mmflächen subsequent cylindrical basic position, improving the guidance of the tubes.

the other one, even if the clamping surfaces are still

have not accumulated, so that next to the area on the outside a ring 14. a favorable sliding guide of the pipes always eiu clean 35 Again, this preferably consists of self-

Over run-up of the conical clamping surfaces on smeared plastic. The ring 14 has a

other takes place. Corresponding Lanu> Schlitzung 9. Incidentally, it has

The object of the invention is the cams 15 on its inner surface in the drawing. These

tion shown in one embodiment. It gasping for achieving the appropriate assembly ²⁰¹⁸ V u 1 · ³ ° ^{ste! Lun} g ^{unIer the} radial elasticity of the ring 14

Fig.! In a partially white longitudinal section, several one into the openings 16 in the wall of the individual tube 2

ande · pushed single tubes, a. The ring! 4 also has a cylindrical shape

A b b. 2 em: forehead .-. Nsichi against the one inner section 17. At this cylindrical section

The ring to be assigned to the tube closes on the outside of the ring 14

Fig. 3 is a side view of this, _3S conically aligned jacket clamping surface 18

Abbot 4 is a front view against an outer to. The wedge angle of this conical surface 18 corresponds

the ring to be assigned to the pipe, preferably the wedge angle of the conical

A b b. 5 shows a side view of this, directed jacket clamping surface 11.

Fig. 6 in an enlarged sectional view two The thickness of the cylindrical section 10 or

Individual tubes in the extended position and 40 17 corresponds to the clear space * between

A b b. 7 shows a plan view of the end of the outer individual tubes 1 and 2. These two sections

s \ -n pipe with clarification of those sitting there accordingly bring one to two at a distance from one another

™ Inu ^b . ^uchse bands spaced locations lying clean leadership

As shown in Fig. 1, the pipeline consists of the individual pipes 1 and 2 in one another,

hch, from the three nested single 45 single tube 2 becomes single tube 1 telescopic

pipe, 2 and 3. _shaped like 2, the clamping surfaces 11 run

The end of the tube 1 carries the out and 18 in the extended end position on one another on the inside

Plastic connection socket 4. These bil- (see Fig.6). This accumulation is not only limiting

det with its inner end edge 5 an Andden telescopic extension, but also brings the

strike for the inserted position of the inner 50 restraint of the extension end position g

tubes 2 and 3. _The longitudinal slots 9 come next to the assembly

The connection socket 4 has the cut relief still to the advantage that even with

Spring tongues 6, which are elastically resilient in a cleanest fit between the clamping surfaces

Enter opening 7 of tube 1. between 11 and 18 the air cushion that forms

As can be seen in particular from Fig. 6, the 55 is chenkann.

1 sheet of drawings

Claims (2)

l 2 radial clamping force on the pipe end sections from patent claims: practice. However, this configuration cannot be used in a simple and user-friendly design. 1. Made of at least two individual tubes that can be telescoped out against one another in a telescopic manner Use existing 5 other extendable single tubes. Pipeline, the individual pipes of which in the stop-task of the invention is to provide a yittungsge- in a limited extended position against each other, to design the pipeline in such a way that are seldom, characterized by two simpler and more economical in lung technology the extension end position mutually identical design is also achieved that the seizure conical clamping surfaces (11, 18) that are necessarily tapered in the extended position without additional shaped shell surfaces longitudinally. Operating steps occurs, in direct succession Schiitzter rings (8/14) are formed, which are independent of the pull-out force, in such a way that also The exploitation of an inherent ra- to release this bondage kernels additional dial elasticity in such a way that individual hand movements are necessary as the interlocking tube (1 or 2 or 3) are anchored that radially 15 push the telescopic individual tubes, protruding cams (12 or 15) in openings This is achieved according to the invention by (13 or 16) snapped into the pipe wall, two in the end of the extension position run onto each other. are. fende conical clamping surfaces that of cone-shaped 2. Pipeline according to claim 1, thereby aligned jacket surfaces of longitudinally slotted rings indicates that the longitudinal slot (9) of each Rin-20 are formed, which by taking advantage of one of them ges (8 or 14) angularly to the axial direction inherent radial elasticity in each case such mn of the Hinzel tube, preferably roof-shaped, with individual tubes being anchored so that they run radially in front. protruding cams in openings in the pipe wall