DE7933147U1 - CONNECTING DEVICE FOR FLEXIBLE OR SEMI-FLEXIBLE TUBES - Google Patents

Description

Connection device for flexible or semi-flexible

Tube

The innovation relates to an improvement in connection devices for flexible or semi-flexible pipes.

They are straight pipes, but they are considerable Suffer from lateral shifts, or around helical tubes, which are used in industry because of their flexibility are well known which enable them to be extended from a compact unit to a great length «Fkönrierii This twisted tube / which is used to distribute Compressed air are used, allow horizontal displacements and the supply of compressed air operated Devices such as B * of drilling machines, screwing machines, etc.

These tubes, which are particularly heavily used at their ends, are generally at the ends by a

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Steel spring "held / which is inserted into the connection évoirichtüng / to deif this tube" we "attached" d / Uiid the plastic tube ^{1 in} the case of Blegebewegurigen over "a length varying from 5 to 10 cm depending on the diameter of the diameter from 5 to 10 cm * - supports *

■ f These pipes must be close to where they are fastened

H dingt be maintained so that they do not to be shortened lifespan

₍ ., have / since there is a risk of rapid breakage on their importers -

* This is why it is ultimately possible to avoid the use of the retaining spring installed in the connector _{: *}

Despite all these precautions, the pipes need to be replaced frequently _t before their use dangerous for the user, "It is a problem of assembly and disassembly of these tubes, and the improvement of the innovation has primarily the task of solving this problem *

The aim of the innovation is to enable the assembly and disassembly of this drill to be carried out quickly despite the presence of the spring,

It is actually beneficial, the new Sofortan-end devices of smooth tube aufwiese kind of Ver ^j connection device to use.

Applicant's US Pat. No. 3,653,689 discloses a shearling connection device known / which should be improved by the innovation * This patent specification became the subject of improvements disclosed in U.S. Patents 3,999,783 and 3,909. U.S. Patent 3,909,046 in Ficr. 14th

an embodiment of the quick connect device shown, in which the guide spring fits well into the instant connection device is inserted and the plastic, uncoated and cylindrical tube is inserted directly into the connecting device and can be assembled instantly. However, on the contrary, it is impossible to dismantle the pipe, without unscrewing the nut that is used to wrap the entire connector.

The object of the innovation, with which the stated object is achieved, is a connecting device for pliable or semi-flexible tubes for quick assembly with a body that has an inner recess that has a flexible clamp with several jaws that can be gripped into the wall of the pipe to be connected and one on the has diverging zone disposed on the inner side of the connector for tightening the jaws of the clamp, and with a sealing between the pipe and the connecting device, which is held by a washer Sealing ring, with the characteristic that it has a tubular member which is connected to the body on a of its ends is firmly connected and holds the various components inside the body, and that the tubular Organ has at its other end an inner cylindrical recess in which an axially sliding slide is mounted, the stroke of which is limited by a stop provided at one of the ends of the tubular member and which is displaceable for contacting the clamp for the purpose of actuating and releasing the tube when a between the slide and the tubular member

is dismantled.

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This arrangement makes it easier to dismantle the tube despite the presence of the guide spring. It is so much more practical and easier to change and maintain the tube and helical connection device.

Refinements and developments of the innovation are characterized in the subclaims.

The innovation is explained in more detail using the exemplary embodiments illustrated in the drawing; in this demonstrate:

1 shows an overall view of a system with a connecting device according to the innovation?

Fig. 2 is a perspective view of the coiled one. to his Ends of pipe provided with connecting devices;

3 shows a half longitudinal section of an embodiment the improved connecting device according to the innovation;

4 shows a half longitudinal section of another embodiment the connecting device according to the innovation;

still

5 shows a half longitudinal section / of another exemplary embodiment the connecting device according to the innovation;

6 shows a half longitudinal section of a further embodiment example of the connecting device according to the innovation; and

1 shows a semi-longitudinal view of a connecting device according to the invention without a guide spring *

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One recognizes in Fig. 1 a trolley 6 which is mounted on a cable 5, which at both ends of two Halterungsrlgganen is attached. The trolley 6 that is movable on the cable, is fed with compressed air through a pipe 13, which with the trolley through a coiled tube 2 is connected, as shown separately in Fig. 2, which the method of the trolley on the full length of the cable allows.

At the lower part of the trolley there is a coiled pipe mounted, which reaches down to the ground, to pneumatic moving machines (drilling machines and screwing machines with pneumatic drive), the tube 4 is only partially shown in Fig. 1.

As FIGS. 1 and 2 show, the tubes 2 and 4 are connected at their ends with connecting devices 3 and then equipped with retaining springs 12.

Therefore, the converted plastic pipe experiences at the point the introduction into the connecting devices 3 very significant stresses.

ϊη Fig. 3 is an embodiment of a connecting device 3 according to the innovation, comprising a body 3a in which a unit of known type is mounted, a circular sealing ring 6, which is arranged in a recess 3d, a guide disk 7 and comprises a bushing 10 which is arranged in a recess 3e and has a diverging or conical zone 10a and a clamp 8 for clamping the pipe 2 receives.

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I -ιο ί. The plastic pipe 2 engages at its end in a

- Recess 3c of the body 3a, in the sealing ring 6, the

Washer 7 and the jaws 8a of the clamp 8.

ί device

I The socket 10, like the connection unit, is through

I kept a nut 9 that clicked on an external thread 3b

I is screwed to the body 3a.

I The nut 9 is extended by an end piece that

I defined an inner cylindrical recess 9a in which

] a slide 11 is mounted to slide axially, the axial stroke of which

I is limited by the folded edge 9b of the nut 9,

I which engages in a groove 11b of the slide 11 in such a way that

j this latter a recoil of the end piece of the clamp 8

^; and allows the release of the jaws 8a, which are in the wall

of the tube 2 to release it from the connecting device by pulling it.

A safety clip 12c is arranged in the groove 11b, to prevent any unwanted axial movement of the

• Slide 11 is intended. The clip 12c consists of one

elastic slotted ring and can have a grip tab that makes it easier to grip.

I De * slide 11 has a cylindrical part 11a, the

\ represents a guide zone for the pipe 2, and an inner

γ, thread 11e with semicircular threads on, in

; that one of the ends of a spring 12 is screwed, the

is arranged around the tube 2 and extends over a limited part of the tube. At its free end, the

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Fedeif 12 two odeif difei didht benäähbäifte turns i2b on / the this end §in-g "U-fc & § AUääehöii And a gUtie Give strength,

To the solution and the dismantling of the spring 12 in the slide äU avoid / does it have a folded edge lld / which is bent around one of the boulders of the spring so that the spring 12 has a firm connection with the slide 11 *

If the connecting device is as / as described above / assembled is / can the assembly of the tube 2 instantly and without the need to pull it off of the KÜps 12c made from its security position will*

On the other hand, in order to dismantle the pipe 2, it is necessary to close the clip 12c out of the groove 11b solve / and this is an easy process to perform.

After the clip 12c is removed, it is sufficient to have one To exert pressure on the slide 11 on its end face lic, so that he pushes back the clamp 8 and releases it from the diverging or conical blocking zone 10a, what

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allows the pipe to be pulled out without any difficulty. After the tube ² is pulled out, you have to 12c bring the Sicherheitsklip back in its place immediately, £ ÜR Miontage a new gev / endelten tube, it is sufficient that just inside the ^V! Verbihdüngsvorricihtühg 'without * taking any precautionary measures.

That between the end piece of the clamp 8 and the face of the slide 11 perpendicular to the sliding axis

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Intended stroke χ (Fig * 3) corresponds to a visibility = änsöhläg of the clamp under the tensile and compressive effects the pipe. It is one of the essential features of the movable slide 11 / as a Sicherheitsansöhlag is used for terminal 8i This safety lift ·· χ der

Clamp

allows a limitation of the clamping effect of the same and the prevention of excessively strong jamming of the plastic pipe ,

In Fig. 4 is another embodiment of the Connection device shown, which here a body 3ä identifies with an internally threaded hole 3b, in the one Hollow screw 14 is screwed in, which has the diverging or conical blocking zone 14a of the clamp 8. This hollow screw holds the washer 7 in place in its recess 3e and the sealing ring 6 in its Recess 3d.

This hollow screw 14 has a cylindrical recess 14b ^ which allows the above-mentioned limited axial movement of the slide, and a folded edge 14c, the engages in the groove 11b of the slide 11.

The fastening of the spring 12 is also different from that shown in FIG. 3.

A bore 1.1g is provided in the slide 11, into which the spring 12 is inserted and which extends in a groove that connects a turn 12a of the spring with a larger diameter than that of the rest of the is wedged and fastened in the slide 11 by a washer 16!

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which has a cylindrical bore 16a with a shoulder ″, at which the turn 12a rests *

The disc 16 is with the slide 11 by a firmly join the folded edge 11f of the slider * So this assembly allows a complete blocking of the Spring 12, which is absolutely undemountable And with the Slide 11 forms a fixed unit.

FIG. 5 shows a variant of that shown in FIG Embodiment shown, wherein the connecting device is fixed on the body 3a without any thread.

The Köper 3a has a bore 3e which receives a tubular organ 15 which is in the body by a folded edge 3f of the body is held in a circumferential groove provided on the tubular member 15 intervenes. The tubular member 15 has a divergent or conical zone 15a, which is used to block the clamp 8. The tubular member 15 holds the guide disk 7 in its recess 3e and the sealing ring 6 in its recess 33 ·, the tubular member 15 has also has a cylindrical recess 15b in which the slide 11 can slide axially. The attachment of the spring on slide 11 is identical to that shown in Figure 4, - And the tubular member 15 again has an enclosed one Edge 15g to hold the slide 11 on.

In Fig. 6 is a variant of that shown in Fig * 3 Exemplary embodiment shown in which a nut 9 screwed onto the body 3a carries the slide 11. As for the attachment the spring 12 on the slide 11 concerns, so this is by means

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realized a shoulder having Ööheibe 16 , which secures the fixing of one of the turns of the spring 12 as in the representations according to Fig ^ 4 and 5 »

; | At a distance from the external thread 3b of the body 3ä is on this

1 a V-shaped annular groove 3f is provided.

(I In Fig. 7 is an exemplary embodiment of a connection

I device shown _t that a variant of the in Fig * 5

i | Aüsführungsbeispieis shown is, wherein a sealing ring

■ of circular shape between deia slide 11 and the end of the

f clamp 8 is arranged in such a way that the seal is between

. to secure the tubular member 15 and the tube 2 * A

Fi fixed ring 21 is arranged against the slide 11 / around

i to serve as a stop * to hold the sealing ring

',' to be secured on one side against the slide 11 / is

I put the sealing ring on the other side against a

I washer 18, which is subject to the action of a helical spring 19

i is thrown on the bottom 15b of the tubular member 15

I is present.

This arrangement enables the sealing ring to be compressed 17 between -.the disc 18 and the slide 11 below the action of the pressure of the liquid and on a zone of the pipe that is not affected by the jaws 8a of the clamp 8 can be scratched. This results in an improvement

I the seal at all pressures on smooth pipes or with

j? -prepared groove.

j It is of course possible to move the slider 11

S. possibly with a guide spring 12 as with the others

jP embodiments to be provided. On the other hand is between

| s the body 3a and the tubular organ 15 at the level of the

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folded part 3b a groove 20 is provided.

Of course, various modifications can be made by those skilled in the art of the described exemplary embodiments / which were only described as non-limiting examples, without leaving the scope of protection of the innovation. In particular, the Blockierhaiterung of the slide 11 by the folded edge 9b in panels 3, 14c in FIG. 4, 15g in FIG. 5 and 9b in FIG. 6 can be replaced by a person skilled in the art by a different mounting system which solves the Prevents slide from the tubular member 9 or 14 or 15.

The possibilities of industrial application of the innovation are extremely numerous: the distribution of compressed air in a very mobile way in the factories; the distribution of compressed air for the brakes of the trailers of the lorries with a tractor - at present the lorries are almost always equipped with this type of inverted plastic pipe -; the distribution of different fluids, such as the gases or water / to movable devices _t z. B. for washing and painting.

Claims (12)

Protection claims 1. Connection device for pliable or semi-pliable Tubes for quick assembly with a body that has an internal recess that has a flexible interior Clamp with several jaws capable of engagement in the wall of the pipe to be connected and one on the inner side of the connecting device arranged diverging Has zone for tightening the jaws of the clamp, and with a 'ue seal between the tube and the A sealing ring which secures the connecting device and is held by a washer, characterized in that that it has a tubular organ (9; 14; 15) which is connected to the body (3a) on one of its 37iden is firmly connected and holds the various components inside the body (3a), and that the tubular Organ (9; 14; 15) at its other end an inner has a cylindrical recess (9a; 14b; 15b) in which an axially sliding slide (11) is mounted, the stroke of which (x) is limited by a stop (9b; 14c; 15g) provided at one of the ends of the tubular member (9; 14; 15) and which for contacting the clamp (8) for the purpose of actuating and releasing the tube (2) is displaceable when a between the slide (11) and the tubular member (9; 14; 15) provided locking member (12c) is dismantled is. 96- (H3048 cas 79) - Ί '1 2. Device according to claim 1, characterized in that that the slide (11) has a central bore (11a, 11b) in which a spring (12) for guidance and stiffening I of the pipe (2) is held, which is to the pipe (2) I arranged outside the device about a certain I distance stretches. I. 3. Apparatus according to claim 1, characterized in that ! that the cylindrical recess (9a) of the slide (11) I forming tubular member (9) on the outer wall of the j body (3a) is screwed and a stop member one j having the diverging zone (10a) and in the j body (3a) inserted socket (10) represents the j washer (7) and sealing ring (6) in place. j 4. Apparatus according to claim 1, characterized in that J that the cylindrical recess (14b) of the slide (11) ; forming tubular organ (14) in the body (3a) with ^ inem ; Part is screwed in, the inside one the diverging one ■ Zone (14a) having recess of the clamp (8) ! and holds the washer (7) and the sealing ring (6) in place. i 5. Apparatus according to claim 1, characterized in that i that the cylindrical recess (15b) of the slide (11) j forming tubular organ (15) clamped in the body (3a) is, which forms the diverging zone (15a) having the recess of the clamp (8) and holds the Jeheibe Cl) and the sealing ring (6). 6. Device according to claims 1 Vüid 2, i marked thereby characterized, that the slide (11) with the spring (12) for 1 guidance and stiffening, gehmeläSämen or halfäshmlegsämen I dei? F.edeif CfT) f pipe (2) by screwing it into a Saok hole thread (11e) with semicircular threads in the slide (11) «II Il (I , (III I I Jl t Il III I I «t <I« I Il I »ill ι <i <<Ii <I I I I I III ι · << are appropriate, and for salvation the coils of the spring "(J 2) in the thread (11e) biödkierelideh Umfäizten part (11d) a firm alliance is ι 7 * Device iiäch the claims 1 and 2, characterized gekenri- · characterized / that the slide (11) for SdhneiidemörttagG with the spring (12) for the guidance and stiffening of the smooth or semi-flexible tube (2) by means of a "findwindüng ( i2ä) the spring (12) ^ est is connected, which has a larger diameter "than the other turns (12b) and is received in a Ausfiehmüng of the slide (11)> where it is shaped by a shoulder with a folded edge (1If) of the slide (11) clamped disc (16) is held in such a way that the end winding (12a) is fixed in the slide (11) and the rest of the spring (12) in the central bore (11g) of the slide (11) intervenes. 8. Device according to claims 6 and 7, characterized in that that the slide (11) has an annular groove (11b) into which a folded edge (9b; 14c; 15g) of the tubular Organ (9; 14; 15) is bent and in which a locking member (12c) engages. 9. Device according to claims 1 and 8, characterized in that that the locking member of the slide (11) consists of a clip (12c) which has the shape of an open -Ring with- round, square or rectangular cross-section and has a certain elasticity. 10. Apparatus according to claim 1, characterized in that the slide (11), which by the locking member (12c) against the folded part (9b) of the cylindrical recess (9a) MIIII I i IiIlIi HI II 1 II ill III i I · Til Ii . ii Wed 111 4 « T JiJl 11 ii «M« i ii of the iföhrföirmigen organ (9) blocks Lät, an external one; 2Ur Ädhse on the * side of the * clamp (8) has a vertical surface; which is a furnace ζ stop 'for the Äxiälhüb (x) for clamping the pipe (2) with the clamp (8) and prevents excessive tightening of the pipe (2) * 11 * Device according to claim 1 / characterized in - that a sealing ring (17) between the slide (11) and the The end of the clamp (8) is arranged in the hollow part. 12. The device according to claim 11, - characterized / that the sealing ring (17) against the slide (11) below the action of a spring Disc (18) is held.