DE7507158U - VALVE DRILLING DEVICE FOR PIPES - Google Patents

Description

The Lrfindunc concerns ^c 'ine Vent il-nr.tohrvo rr: ch tune for Kohrlei turr en with a du: ^ i ner Kor. 1 r ^ i ";.... n · j 'ichter.d dufsetzcdren Ger _ä AEV; se with a lateral .ib'vir.'i ^{<." c} tut3er. Ur.ri an "upper valve connector, in ce" a valve obortei1 can be screwed, which is a two-part ventiispir.cel with an end light <ϊ · r:.; er up.c one al? sr-ir ^ ndss Werkzeun d'jsoebileisten extension led

Such a device is known in which in the valve connector a valve insert is screwed in, which has a two-part valve spindle which consists of a spindle section and screwed onto it, there is a sleeve with a valve sealing body that can be fixed to the bracket against rotational driving by the spindle section,

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which at Spindelbetatigur.g works against a valve seat located between the tapping and the outlet connection on the valve connection. Leg. Screwing in the valve insert v; i rd the cutting tool attached as an extension of the valve sealing body for circular cutting movements driven into the pipe to be drilled. After the hole has been made, the tool remains on the spindle and is moved together with the closing or opening movement with the valve sealing body.

Not always, however, the holes are produced on the pipes ¹ comprising placing the valve housing so that it is not always a valve insert with sealing body and spanendem tool is required. Shut-off devices without such a cutting tool are also known. The valve insert is screwed into the valve socket with a normal coarse thread. However, this coarse thread cannot be used if the cutting tool is to be driven. In this case, therefore, eirvfeingewinde must be provided on the valve connector, which the; Corresponds to the external thread of the valve insert. This requirement, however, requires different valve housings for normal shut-off valves and the valve tapping devices. A double; Storage is therefore necessary »

The invention has the task of designing a valve tapping device in such a way that the \

ι Upper valve part with external fine thread in the corresponding valve I

connector with internal coarse thread can be used. |

A valve tapping device is used to solve this problem of the invention proposed of the type mentioned above,

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which is characterized by a screwed into the valve cover Bushing into which the axial. Advance of the r: ich mitdreher.dsn Tool the upper part of the valve with the ir -: od .- twistable spiral sleeve screw-in ir; t.

In this invention. c _: p. Training, the bushing π, -. T the usual coarse thread can be screwed into the valve stem / s. The inside of this bushing has a b'eir.thread into which: the upper part of the valve is screwed with the corresponding. \ Except: feirigevir.de to advance the tool.

According to a preferred embodiment of the invention, the spindle sleeve is integrally formed with an outer one. The collar, which receives two O-rings, is inserted into the valve upper part, which is configured with an appropriate fitting, and is held upwards by a screwed-in socket part in the upper part. One threaded end of the valve spindle is screwed into the spindle sleeve, axially displaceable in it and guided with its outer polygonal surface in the corresponding bore of the upper valve part

With the inventive design of the valve tapping device it is possible to use the same housing for normal shut-off valves and the valve tapping devices, which so far necessary different threading operations and double storage can be avoided.

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. • \ nOn the basis of an illustrated example, the It is explained in the following,

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F ', c ^ r 1 cine Ver.ti l-arb :. Hearing device in longitudinal section ν cj "π er. i ρ r ο h ι ■.; γ. q

i'igur? ''"'.or; - _; r.:·■;" cchence device in a similar representation after drilling through the pipeline.

d.-i? The pipe marked mi r: 1 has an interposed seal the valve housing 3 lit clamps 31 and screwdriver. 32 put on. This housing 3 was t a side access port 33, one, upper valve stub 34 and the valve seat located above the pipe 3G on. j

i A bushing 4 is screwed into the valve connector 34 with normal female coarse thread 35 up to the stop of its flange 41 » This socket 4 has a fine thread 42 on the inside, into which the upper valve part, designated as a whole by 5, with its externally threaded section from above 51 can be screwed in.

This upper part 5 accommodates the spindle sleeve 7 in a rotatably sealed manner. On the spindle sleeve. 7 is a collar 73 approximately in the middle on the outside integrally formed, in which two O-rings 74 for sealing against the inner wall of the upper part are arranged. With this covenant 73 sits

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the spindle sleeve 7 on the inner shoulder 52 of the valve upper part 5. From above, the spindle sleeve 7 is in the valve upper part 5 held by a screwed-in socket part 8. By tightening the clamping screw 9, the spindle sleeve 7 firmly connected to the upper part 5 via the socket part 8 and thus as a closed unit when actuated of the key extension 71 of the sleeve as a tapping spindle.

Inside this spindle sleeve 7 , the spin del 6 is displaceable with its threaded end 73 on the thread 72. The spindle 6 is guided with its polygonal surfaces 64 in the bore 54 and the upper part 5. At its lower end, the spindle 6 has the sealing body 61, in which extension the cutting tool 62 is attached in the manner of a milling cutter.

In the position according to FIG. 1, the drilling of the pipe begins When the upper part 5 with its key surfaces 53 is screwed into the BuC) ¹ Si 4, the spindle 6 is carried along and the tool 62 is driven against the Ronr 1. The dimensions are selected in this way that after the threaded section 51 of the upper valve part 5 has been completely screwed into the socket, the tool 62 has pierced the pipe wall.

After the upper valve part 5 has been completely screwed in, the valve sealing body 61 lies on the valve seat 36 in the interior of the Housing 3 sealingly. This position is shown in FIG. After drilling and loosening the clamping screw 9 by actuating the spindle sleeve 7 only causes the valve to open and close. By turning it accordingly

of the spindle sleeve 7, the spindle 6 can now be moved in the axial direction, "vpduxch. the valve seat 36 is opened or closed / b 07 I b 8 1ß.ilP7fi

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Pipe

ο Liicht 'ης casing 31 Ring 32 screw 33 Outlet connection 34 Valve stub 35 inner thread 36 Valve seat 4th Rifle 41 flange 42 inner thread 5 Top 51 External thread section 52 paragraph 53 Key area 54 drilling 6th spindle 61 Sealing body 62 tool 63 Thread end 64 Polygonal surface

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Spindle sleeve.,;. 71 Key address i 72 inner thread 73 Federation 74 O-ring Socket part

Clamping screw.

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Claims (4)

Protection claims e Ventil-Hnboh. "Ηrrichtung for pipelines ml ^: _: a housing that can be placed on a pipeline in a sealing manner with a lateral outlet support; and an upper valve connector into which an upper valve part can be screwed, which has a two-part valve spindle with a sealing body at the end and a cutting tool formed extension leads, characterized by a bushing (4) screwed into the valve connector (34), into which the upper valve part (5) with the sealed, rotatable spindle sleeve (7) can be screwed for the axial advance of the rotating tool (62). 2. Device according to claim 1, characterized by, that the. in the valve connector (34) screwed socket (4) has an end flange (41). 3ο device according to claim 1, characterized in that that the spindle sleeve (7) with an outer molded Dund (73), which receives two O-rings! [74), in the with a τη corresponding paragraph (52) formed Ventilobertt_il (5) and secured upwards by a screwed-in socket part (8) in the upper part (5) Is held. 4. Execution r.-i - \ n ~ \: < uch 1, thereby ■: e '<c-rr :: " ⁱ ';vv:" ir. '? T, ddß the valve spindle (6) with a \ ^; "; e it winds v / K.- ^(>: ■) in the spindle sleeve (7) screwed in its -s: ^-:: .dl is slidably and their mj t; outer Hehr ^1: .nt ^x l- 'chen (64) in the corresponding Buiirunq (54) öp-s valve upper part (5) is positively guided *. Device according to part 1, characterized in that key areas on the outside of the upper valve part (5)
(53) are molded « ■ 7507158 ieD97fi