DE2503831A1 - CONNECTING DEVICE FOR LIQUID LINES - Google Patents

Description

PL / MCN / GC / 26.230
January 24, 1975

Monsieur Aristide, Jean-Michel KAGAH
14 Bis, Avenue Pierre Gurre
77330 -QZOIR LA PERRIEBB (PRAUCE)

"Connection device for flu's s.igke it ^ lines".

The present invention relates to a connection device on a liquid line.

There is already a connection device known which has a body with a central passage which is substantially is installed perpendicular to the line and thereby on the mentioned Line forms a tap in the form of a T-piece, said body with the help of a splash and a cap-shaped with the latter cooperating G-egenflansch on the line is built in to the latter: .. after clamping and blocking the appropriate Fasteners such as screws and nuts border all around. The body of this device is at its free end with an arrangement for connection to a conduit such as for example provided a thread on which the head is also attached a tool can be attached, the latter being a drill which forms a punch which is inserted through said passage of the body up to the conduit, in order to drill a connecting hole there to connect the inner space of the line with this passage.

Such devices allow the diversion

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on an already existing line to form an additional connection part, for example to connect a washing machine a nearby aqueduct. This connection is then made without cutting the line to create a tubular one as usual T-piece after welding or G-e thread drilling of the ends of the To attach the line.

If, in addition, the connection device has a shut-off valve such as a kitchen tap is provided, the connection of the additional branch can be carried out in such a way that the water from the supply line is not turned off. There is also a stopcock at the beginning of the junction.

Although this connection technique appears to be very advantageous, it is they have various drawbacks and difficulties which have not been solved satisfactorily up to now.

The main difficulty is due to that the punching out of the line with the tool to form the connection opening mostly not done in a satisfactory manner. Especially in the case of lines made of annealed copper, very often a significant deformation "or crushing of the line produced, which the sealing of the connection and its service life significantly impaired.

Another difficulty is that those in the Line punched pastille is either thrown into the line or dragged into the supply network, so that the resulting adverse consequences are expected, or still close to the drilled Bore is bent into the interior of the line and thereby causes a constriction in the line, which leads to pressure losses η and smoke formation leads.

The use of this technology is also made more difficult by the fact that in practice there is a special connection type for each line diameter should be provided so that the installer should always have several devices that the different correspond to common cable diameters.

The present invention relates to improvements to connection devices of the type mentioned, which solve the aforementioned Disadvantages and difficulties allow.

According to an important feature of the approach according to the invention Closing device ends the drill of the tool with saw teeth

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similar teeth that extend over the tubular hollow attack end of the Protrude in a serrated arrangement and are directed so that the cutting edge of the inclined surfaces of the saw teeth of the Tool the attack edge of the drill when twisting and penetrating the same into the line by screwing the on the device forms arranged tool.

With such a tool, which to a certain extent works in the opposite direction in relation to the usual working direction of the teeth of a saw, it is surprisingly found that the correct punching out of the line is achieved without any crushing, regardless of the material, from which the line consists, such as annealed copper or tough copper, under these conditions this connection is more reliable because it is tight, which was not the case with the connection devices of the already known technology. ^r

G-emäB has yet another feature of the invention Tool such a shape that the pellet punched into the pipe is captured and held by the tool and from this G-round together with the latter when attaching the connection before direction Will get removed.

G-emäB yet another essential feature of the invention, a seal is provided which is drilled with a central opening and is inserted into the guide of the body of the device, wherein this seal on the side touching the line a cradle or has curved point which is arranged torsionally rigid in the body and has a cylindrical concave shape in the direction of the conduit. This seal, which has a wide bearing surface on the line around the opening drilled by the tool, ensures the good sealing of the connection. In addition, the adaptation of a single connection device to several line diameters, for example on pipelines from 8/10 to 14/16 possible that the installation flange and the corresponding counter flange are provided with complementary, interacting gradations.

According to a particularly advantageous embodiment of the invention, the drill of the tool is made hollow and with a Connection tap firmly connected, in whose passage it opens, wherein this tap on the free threaded end of the Body of the device is screwed and behind the locking member

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of the tap with an arrangement for connection to a line such as for example is provided with a thread. This way "needs the user does not have a special drilling tool, as this tool is built directly onto the connecting tap and is a component the same forms.

Further features result from the following description, in which some Ausf.ürungsarten of the invention are explained with reference to the accompanying drawings. In the drawings show:

- Figure 1 is a view in the perspective of one, in apart shooting device according to the invention shown taken state;

- Figure 2 is a view of the body of the connecting device, which is attached to a line;

- Figure 3 is a view in section of the with the body of the Connection of the cooperating tool to make the connection with the connection line to manufacture;

- Figure 4 is an enlarged view of the drill of the tool;

- Figure 5 is a view of one end according to the arrow V of the figure 4;

FIG. 6 shows the cutting of the lozenge by the drill;

- Figure 7 is a developed view of a tooth of the drill shown in Figures 4 to 6;

- Figures 8 to 11 views in section according to the Planes VIII-VIII, IX-IX, X-X and XI-XI of Figure 7;

- Figure 12 the head of a drill according to an embodiment the invention;

FIG. 13 is a view of one end according to arrow XIII of FIG Figure 12;

- Figure 14 the way in which the line with the help of the The drill of Figure 12 is punched out;

- Figure 15 is a developed representation of a tooth of the Tool of Figures 12 to 14;

FIGS. 16 to 18 are sectional views according to planes XVI-XVI, XVII-XVII, XVHI-XVHI of FIG. 15;

- Figure 19 is a view in perspective in which a Connection device according to one embodiment of the invention is shown torn off;

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FIG. 20 is an enlarged view of one end of the one shown in FIG

19 drill used;

FIG. 21 shows a view according to the arrow XXI of the figure 20;

FIG. 22 is a sectional view according to plane XXII-XXII of FIG.

Reference will first be made to FIG. 1, in which the main components of the connection device according to the invention are shown.

This device, generally designated "10", consists essentially from a body 11 with a central passage Or a central passage 12 as shown in Figure 2, is installed substantially perpendicular to a line 13 and thereby a T-shaped tap on the line "forms. This body is örmigen with the help of a flange 14 and a flap, with the latter cooperating G-egenflansch 15 built in to after tightening of screws 16 and nuts 17 the line 13 around to border.

At its free end, the body 11 is provided with a connection arrangement, such as for example a G-thread 18, in order to make the connection with the one not shown tapped onto the line 13. Allow branch line. On the thread 18 by screwing with a complementary 'female thread 19 of the head can be a tool to be mounted 21 20, which is provided with a hole punch press forming drill 22, for example made of steel ₅ inserted through the passage 12 of the body 11 to the line 13 is to form a connecting opening 23 there, which connects the inner space of the line 13 with the passage 12 "

As can be seen more clearly from FIG. 3, the Advance of the drill 22 to form the bore in the line 13 by simply screwing the actuator carrying the drill 22. wrench 24 into the hole with a fine G-thread 25 of the head

20 άβε tool as soon as the tool 21 is installed on the body 11 is.

As FIGS. 1 and 2 show, the flange 14 and the counter flange 15 have the passage laterally on each side 12 two complementary stepped areas 26, 26 'and 27, 27', after the screws 16 and nut 17 have been tightened

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proper retention of the connection on line 13 Introduction of the gradations in the wall of the pipeline 13 and ensure for different diameter dimensions of the line. In this way, the put in place is held rigidly in place.

One can also see in FIG. 28 a seal with a central opening 29 which, in the installed state, is inserted into the passage 12 of the Body 11 is introduced, as Figure 2 shows in particular, this seal in contact with the conduit 13 on it standing side has a cradle or curved point, which has a cylindrical concave shape in the direction of the line, so considering the diameter of the line 13, the correct one Sealing of the assembly is ensured. Due to the shape of the cradle 30, no rotation of the seal 28 can take place in the course of installation.

Finally, the body 11 is with a shooter 31 for example provided with a throttle valve forming a shut-off valve.

To establish the connection or the connection, it is sufficient to assemble the parts of the connection device on the line 13 as shown in FIG into the thread 18 of the body 11 and then drill the hole 23 of the line 13 by screwing in the wrench 24 so that the drill 22 is rotated and displaced into the line 13. Then the drill 22 is simply taken out, the cock 31 closed and the tool 21 removed, since the tap _or branch is ready.

Reference will now be made to Figures 4-11 in which in details the execution of the teeth of the drill 22 formed as a Lochstan ze is shown.

laughing at the embodiment shown in the drawings According to the invention, the drill 22 has a head 32 which is provided with saw teeth similar teeth 33 ends, which have a substantially perpendicular surface rising steeply to the attack circle of the tool 34 and have an inclined or descending surface 35, which at the tubular, hollow attack end of the drill (on Figure 4) protrude in a serrated arrangement. According to an essential feature

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According to the invention, these teeth are aligned in such a way that the cutting edge of the inclined surfaces 35 of the saw teeth of the tool, the attack edge of the drill when rotating and penetrating the same forms in the line 1 3 by screwing the tool arranged on the device. In other words, that is done Rotation of the tool in the course of the drilling process in the sense indicated by the arrows F1 (on FIG. 5) F2 (on FIG. 7), with this direction of rotation is opposite to the usual direction of attack of the toothed tools.

As it appears more clearly on Figures 8-11, the Teeth cut off at an angle in such a way that the cutting edge is provided on the circumference or in the direction of the outer surface of the drill is.

As FIG. 4 shows, the outer surface is the outer one Surface e_ of the drill circular cylindrical while the lateral surface of the inner surface i of the drill is conical with an acute angle of about 30 °.

With such a tool and as Figure 6 shows, one achieves the perfect cutting out of a pastille 13a in the wall of the line 13 without crushing this wall.

Similarly, the preferred embodiment of the invention based on Figures 12 to 18 is shown, the drill 22 ends with a Head 42, which also has saw teeth in a serrated arrangement 43, which are provided with a steeply rising surface 44 and an inclined surface 45.

This drill generally works in a similar way to the one on Figures 4 to 11 shown drills, the direction of attack through the arrows F3 (on Figure 13) and F4 (on Figure 15) is indicated.

In this embodiment of the invention and in contrast to the previously described embodiment, however, the outer surface e_ of the head of the tool of a cone with a surrounded by an acute angle ρ, while the inner surface i is surrounded by a circular cylinder, is surrounded.

As the Figures 16 to 18 show more clearly, are Teeth 43 cut at an angle in such a way that the cutting edge progresses from the inside of the wall (on FIG. 16) to the outside of the wall (on Figure 18) of the drill runs if you look along the inclined descending surface 45 of a tooth from the steeply rising surface

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before moving to the next tooth. ' o ^%

With such a tool and as shown in FIG. 14 As can be seen, one achieves in the wall of the line 13 the punching out of a pellet 13 b, which in view of the mode of operation of the tool tends to penetrate inside the hollow head of the tool, as indicated by arrow F5. The dancing takes place without crushing the tube 13 and the lozenge 13b is removed from the tool caught.

According to the embodiment of the invention shown in FIG. 19, has the device for connecting a secondary line to an already existing line 113 essentially the. body 111 of the device, which with the help of a flange 114 and a Counterflange 115 is connected to the line. Similar to on Figures 1 and 2 enable the interacting complementary Graduations of the flange and the counter flange allow the adaptation of one and the same device to different ones. Line diameter. .

In contrast to the types of execution of the Invention is the stopcock of the junction not with the body 11 ' firmly connected but forms a separate tap 50, which is on the body, for example by screwing the thread 57 of the Faucet into the thread 118 at the end of the implementation 112 of the body 111 is executed, is set.

The tap 50 is a conventional tap with a push button 54 which, when operated in the opening direction, the connection between the inlet passage 51 and the discharge passage 58 to the produces branch line, not shown, this tap separating the passage 51 from the passage 58 when the push button 54 is operated in the closing direction.

According to an essential feature of the present embodiment of the invention, the drill bit 122 is used for drilling the conduit 113 is used to create the junction, as already described, ■ firmly connected directly to the tap 50 on the end face 59 of the passage 51. If the faucet 50 is presented in such a way that the Thread 57 penetrates the thread 118, it is sufficient in this way screw the faucet 50 onto the body 111 to pass through the tip of the drill 122 to drill the line 113. Because the drill 122 is hollow it establishes the connection between the inner space of the pipe 113 and the passage 51. Sealing the assembly will

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between the body 111 and the line 11 "3 in the manner already" described in the aforementioned embodiments, while the seal between the tap 50 and the body 111 is ensured by the cooperation of the associated threads 57 »118. In addition, the drill 122 penetrates the hole drilled by it in the conduit 113 with great accuracy, so that the connection is sealed ^{from the beginning 1.} Washers 53 make it possible to adjust the depth of penetration of the drill 122 into the conduit 113, to improve the seal and to set the correct angle of rotation of the tap 50 fastened on the body 111.

It should be noted that according to an advantageous feature of Invention that punched into the conduit 113 by the drill 122 Pastille during the first opening process of the push button 54 of the Faucet 50 because of the pressure of the liquid flowing from the line to passage 58 according to arrows 55, 56 in the drain passage 58 is caught. That way, that gets into the pipe 113 removed punched pastille without the risk of that it is carried over into the line 113 or into the branch line.

The drill 122 can be toothed like that before has been explained for the previously described embodiments.

According to a preferred embodiment of the invention and how However, as can be seen from "FIGS. 20 to 22, the drill is with Teeth 122a, 122b, 122c and 122d provided by cutouts in the cylindrical wall 122e of the tool substantially according to the inclined planes, which are in 60 (on Figure 4) with a Cut angles ^ f on the axis of the drill, to be formed. Of the Angle ^ is preferably between 30 and 60 °. For this reason the teeth are arranged symmetrically and consequently the direction of rotation is of the tool to form the hole in the line 113 indifferent.

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Claims (12)

P. A TEFTAI SPICE 1 . J Device for connection to a liquid line with a body with a central passage, which is installed essentially perpendicular to the line and since "a T-tap point on the line" forms, this body with the help of a flange and a cap-shaped, with the latter cooperating G-egenflansch is installed on the line to enclose the line around after clamping or blocking the suitable fastening means, such as screws and nuts, and at its free end an arrangement for connection to a line such as, for example comprises a thread, while a drill forming a hole punch, for example made of steel, can be inserted through the passage of the body up to the conduit to form a connecting opening between the interior of the conduit and this passage, characterized in that the drill 22 has teeth similar to saw teeth 33 is provided, which in a serrated arrangement with least s an inclined surface 35 protrude beyond the tubular, hollow attack end of the drill 22 and are directed so that the cutting edge of the said inclined surfaces 35 of the saw teeth of the tool 21 during the rotation and penetration of the drill 22 into the line 13 by screwing the on the Device attached tool 21 forms the attack edge of this drill. 2. Apparatus according to claim 1, characterized., That the saw teeth 33 with a steep surface 34, which in relation to the The attack circle of the tool 21 closes an angle of approximately 90 °, and are provided with an inclined surface 35. 3. Apparatus according to claim 1 or 2, characterized in that said teeth 33 with their teeth withouteiderand on the circumference of the Drill 22 are cut at an angle. 4. Device according to one of claims 1 to 3, characterized in that the attack head 32 of the drill 22 has a substantially circular, cylindrical outer surface θ and a substantially truncated cone-shaped inner surface 1 . 5. Apparatus according to claim 1 or 2, characterized ^ characterized » $ 509834/058 that the mentioned teeth 43 are cut off obliquely and that the Cutting edge progressing from the inside to the outside of the wall. of Drill 22 progresses when one is inclined along the descending slope Face 45 of a tooth from steep face 44 to the next Tooth "moves. 6. Apparatus according to claim 5, characterized in that the attack head 32 of the drill 22 is essentially frustoconical atlBere lateral surface e_ and an essentially cylindrical inner lateral surface i "has. 7. Device according to one of the preceding: "preceding claims, characterized characterized that a seal 28 with a central opening in the implementation. 12 of the body 11 is inserted where "at this middle seal on its standing with the line 13 in contact Page has a cradle 30 which is held in torsionally rigid manner in the body 11 is and in the direction of said line a concave cylindrical Has shape. 8. Device according to one of the preceding claims, characterized in that the mounting flange 14 and the corresponding counter flange 15 are provided with complementary ^{, interacting gradations 26, 26 f} and 27, 27 '. 9. Connection device according to one of the preceding claims 1 "to 8, characterized in that the drill 122 is hollow and is firmly connected to a connecting tap 50, in whose passage 51 it opens, this tap on the free end of the body 111 of the device provided with a G-thread 118 is screwed and behind the closing element of the cock (in Seen flow direction of the medium) an arrangement for connection to a line has, for example, a thread winch 57. 10. The device according to claim 9, characterized in that the teeth 122a, 122b, 122c, 122d of the drill 122 are formed by cutouts in the cylindrical wall 122e of the tool essentially in accordance with the planes cutting on the axis of the drill. _v * 11. The device according to claim 10, characterized in that the angle of inclination Q of the planes of the teeth 122a, 122b, 122c, 122d lies between 30 and 60 ° on the axis of the drill. 12. Connection device essentially as described and illustrated on the accompanying drawings. 509834 / 0S88 "■.