DE8118745U1 - "PIPE INTERRUPTER" - Google Patents

Description

Eggemann 7676/81

"Ear breaker"

The invention relates to a drilling interrupter which can be inserted into a domestic water pipe from a housing with a water inlet and a water outlet connection, as well as from one drill switch arranged in the housing, which shuts off the water supply line when there is negative pressure, and at least one ventilation duct which penetrates the housing wall and leads into the atmosphere releases.

Drill interrupters of this type for preventing dirty water from being sucked back into the water pipe are widely known. In the case of the drill breaker according to DE-PS 25 34 175, the flow direction runs from bottom to top and a gravity-closing valve body is axially adjustable in the housing and normally closes a ventilation duct, but when there is negative pressure in the water line, the negative pressure

Eggemann 7676/81 ···· · '♦ · *. "··

affected is raised, releases the ventilation channel and then closes tightly applied to a valve seat into which the water supply line opens.

Pipe interrupter are also known from that DE-PS, in which the direction of flow is perpendicular from top to bottom.

j The known pipe interrupter have, however, relative

complicated Eaum forms.

In addition, their function is endangered at the latest when the known pipe interrupter from the The prescribed position can be installed slightly differently.

The invention is now for a pipe interrupter of the type described above with simplification A significant increase in puncture security aimed at manufacturing and assembly.

The solution to this task is characterized by the following features:

Eggemann 7676/81

»II • I · I

ti did

- 10 -

a. the water inlet connection is only available with one in the housing with play to it Wall arranged sleeve in connection,

b. the sleeve is closed at the end facing away from the water inlet lind has in its wall in the direction of flow of the water in front of the closed end of the sleeve, an opening that corresponds to that in the housing wall arranged ventilation channel is at least approximately opposite, and

c. on the sleeve is a fixed lengthwise extension, the sleeve at least In the area of the wall opening, a tightly closing comprehensive hose is arranged, which is released from the sleeve by the water pressure can be lifted off elastically and placed against the mouth of the ventilation duct and the latter is designed to close.

As a result of these measures, the pipe interrupter is no longer as previously in Dependence on gravity respectively. from the

Eggemann 7676/81

- 11 -

pressure in the water supply line, but exclusively controlled by the water pressure of the incoming water, which results in a previously unattained high level of functional reliability. In addition, the latter is completely independent of the respective position of the drill breaker. The pipe interrupter according to the invention is also characterized by a simple, efficient manufacturable Eaumform.

To further increase the functional reliability, it is advantageous if the contact surfaces for the hose, especially made of rubber, made of polytetrafluoroethylene.

This prevents the hose from touching its contact surfaces even after prolonged use sticks.

For this purpose, it is particularly advantageous if the sleeve and the housing as in the claims 3 and 4 are marked.

Eggemann 7676/81

- 12 -

A preferred embodiment that is both favorable in terms of production technology and easy to maintain of the above-described subject is characterized by an assembled from two parts Housing, which is provided on the first housing part of the water inlet nozzle, the second Housing part has the water drainage connection and the ventilation duct, and wherein between the sleeve carrying the hose is kept tightly closed on the two housing parts, wherein the two housing parts are preferably also arranged coaxially aligned with one another are and preferably also the water inlet and the water drain connection to each other are arranged to run coaxially.

Another feature that simplifies assembly is that the two housing parts

j are designed to be screwable with one another. I.

A preferred | is identified for this

Embodiment in that the second housing |

S on the part off the water downcomer% facing end portion has a male threaded zone and the latter with the ventilation channel free-

Eggemann 7676/81 * j! '

lassend screwed tightly closing into a threaded hole of the first housing part is that further in the lower housing part the screwed-in end part of the second housing part opposite an inwardly projecting shoulder is arranged, and that the hose carrying sleeve on the end part facing the water inlet one outwardly protruding Has the flange between the shoulder of the first housing part and that facing Front side of the second housing part is tightly clamped.

An advantageous further education for the above-described subject The design and arrangement of the hose consists in that the hose is formed so that it reaches up to the sleeve flange is and has an integrally formed flange between the. Sleeve flange and the end face of the second housing part facing it is clamped tightly.

Eggemann 7676/81

- 14 -

To achieve a safe shut-off of the water supply, it is advantageous to when the hose has a beaded rim surrounding the free end part of the sleeve.

Further advantageous features of the subject matter described above characterize the claims 12 to 14.

An embodiment of the invention is shown in the drawing and will be described in more detail below.

Show it:

Jig. 1 an ear breaker in longitudinal section,

ITig. 2 also in section, accordingly seen the line II-II.

In the case of this pipe interrupter, the housing is made up of two screws that are detachably screwed together Housing parts 2 and 3 joined together. A water inlet connection is located on the housing part 2 Narrow-shaped, while the housing part 3 has an integrally formed water drainage connection 5.

/ JU

Eggemann 7676/81 ....... / α

• t M,>

The housing part 3 also has the water outlet socket 5 end part facing away from an external thread ζ one 6.

That zone is tightly closed in a corresponding threaded bore 7 of the housing part 2 screwed in

A sleeve 8 is inserted into the housing 1. The parts 2, 3 and 8 are turned parts and to each other arranged coaxially aligned. The sleeve 8 has at one end an integrally formed flange 9 »between a in the housing part 2 arranged shoulder 10 and this facing end face 11 of the Housing part 3 is clamped. At the other end part, the sleeve 8 is closed by means of an integrally formed wall 12. In addition, two diametrically arranged, cylindrical openings 13 are provided, each of which is approximately opposed by a ventilation duct 14 arranged in the housing part 3.

Eggemann 7 & 76/81

• ι tr

In addition, the sleeve 8 is tightly closed over its entire length by a hose 15 made of rubber comprises, which has at one end an integrally formed Plansch 16, which between the «Splash 9 and the end face 11 tightly and tightly is clamped.

At the other end of the sleeve 8 is an integrally formed, the free end face of the sleeve 8 more comprehensive Bead 17 provided.

ITm even after prolonged use of the pipe interrupter ε, e.g. due to aging of the rubber or due to the action of heat, the hose 15 will stick to its contact surfaces avoid, the sleeve 8 is made of polytetrafluoroethylene and the housing part 3 has a ventilation channel leaving free, as a prefabricated Sleeve formed lining 18. On the housing part 2 is still a with play for Housing part 3 arranged on the ventilation ducts 14-shielding collar 19 is integrally formed.

• ι r r ι

• ·

Eggemann 7676/81

t t

17 -

In addition, both housing parts 2 and 2 with key approaches, not shown be provided.

Under certain circumstances, the hose on the sleeve 8 in the axial direction could also by means of a snap ring or the like can be set. The housing parts are preferably made made of metal.

If that pipe interrupter is acted upon by the water pressure, the hose 15 lifts off the sleeve, 8 from, lies against the mouths of the ventilation channels 14 tightly and releases the flow to the water drainage connection 5.

However, if the water pressure falls below a predeterminable size, the hose 15 is automatically, namely by its own restoring forces tightly closing on the sleeve 8 again created, the "ventilation channels 14 being released, which are preferably have cylindrical cross-sections.

All new individual and combination features disclosed in the description and / or drawing are used regarded as essential to the invention. '

Claims (1)

Serial No PATENTANWÄLTE * } . · '. j fβ ^ ηζβΙΛιρρϊ -j CONRAD KÖCHLING ···· · '"' Γ .. j'L" i * _ «. CONRAD-JOACHIM KÖCHLING Fleyer Strasse 135, 5800 Hagen Am. I company Rut (02331) β ιιβ4 + θ 6ο33 Carl Aggemann Telegrams! Palenlkeehllne Haeen Aimaturenfabri Accounts: Commerzbank AQ. Hagen · '. ΠσοπητηΛ ο +: τ * ΛΛ (BLZ 450 400 «) 3 615 095 USeBHiHaSTiJ. . Il Sparkasse Hagen 100 012 043
Post.chec *: Dortmund 6989-460 B / TJ VÜTR: 11 58 51 Protection claims: 1.) In a house water pipe insertable ear breaker, consisting of one Housing with a water inlet and a water outlet, as well as an im Housing arranged drill switch, which in case of negative pressure in the water supply line shut off, and at least one of the housing wall penetrating into the atmosphere Releases leading ventilation duct, characterized by the following features: a. the water inlet nozzle (4-) is exclusively with one in the housing (1) with clearance to the wall of the housing Sleeve (8) in connection, Eggemann 7676/81 b. the sleeve (8) is at the end facing away from the water inlet (4) on the front side closed and has an opening (13) ι in its wall in the inflow direction of the water in front of the closed sleeve end at least approximately that of the ventilation duct (14) arranged in the housing wall faces, and c. on the sleeve (8) is a fixed in its longitudinal extension, the sleeve (8) at least in the area of its wall opening (13) a tightly closing hose (15) arranged, which can be lifted elastically from the sleeve (8) by the water pressure and is attached to the mouth of the ventilation duct (14) can be applied and the latter is designed to close; is. Eggemann 7676/81. ·. 2. Pipe interrupter according to claim 1, characterized in that the contact surfaces for the hose (15) »in particular made of rubber, made of polytetrafluoroethylene. 3 · Pipe interrupter according to claim 1 and 2, characterized by a sleeve (8) Polytetrafluoroethylene. 4. Pipe interrupter after one or more of the preceding claims, characterized in that the housing (1) at least the Hose (15) opposite a liner (18) made of polytetrafluoroethylene, leaving the ventilation duct (14) free having. 5. Pipe interrupter according to one or more of the preceding claims, characterized in that by a housing (1) assembled from two parts, of which the first housing part (2) the water inlet nozzle (4-) Eggemaan 76? 6/81 -: can be seen, the second housing part (3) the water drainage connection (5) and the Has ventilation channel (14), and wherein between the two housing parts (2,3) (15) the sleeve (8) carrying the hose is held tightly closed. 6. Pipe interrupter according to claim 5, characterized characterized in that the two housing parts (2,3) are aligned coaxially to one another are arranged. 7. Drill interrupter according to one or more of the preceding claims, characterized in that the water inlet and the water outlet clip (4- _s 5) are arranged to run coaxially to one another. 8. pipe interrupter according to one or more of the preceding claims, characterized draws that the two housing parts (2,3) are designed to be screwed together. Eggemann 7676/81 U 9 · Pipe interrupter according to one or more of the Κ preceding claims, characterized ö indicates that the second housing part (3) pj - the port facing away from the water drain (5) End part has an external thread zone (6) «And with the latter the ventilation duct (13) leaving free in a threaded bore (7) of the first housing part (2) tightly closing is screwed that also run the first housing part (2) the screwed end part of the second housing part (3) opposite an inwardly projecting shoulder (10) is arranged, and that the tube (15) carrying the sleeve (8) on the water inlet (4) facing end part has an outwardly protruding plan (9) which between the shoulder (10) of the first housing part (2) and the end face (11) facing it of the second housing part (3) cLight-closing is clamped. <■ I I I I Eggemann 7676/81 10. Eear breaker according to one or more of the preceding claims, characterized characterized in that the hose (15) to is designed to reach the sleeve flange (9) and has an integrally formed planar (16) that extends between the Sleeve flange (9) and the end face (11) of the second housing part facing it (3) is clamped tightly. 11. Eear breaker according to one or more of the preceding claims, characterized in that that the hose (15) has a bulge (17) surrounding the free end part of the sleeve (8). 12. Eear breaker according to one or more of the preceding claims, characterized in that that in the sleeve (8) several arranged distributed around the circumference, approximately radially directed openings (13) and each at least approximately opposite each one the Eggemann 7676/81 Housing wall penetrating ventilation channel (13) are arranged. 13 · ear breaker according to one or more of the preceding claims, characterized in, that on the first housing part (2) a arranged with play to the second housing part, the ventilation channels (13) shielding, the end face of the second housing part (3) more open Collar (19) is arranged. 14 ·. Pipe interrupter according to one or more of the preceding claims, characterized in that that the collar (19) is integrally formed on the first housing part (2) in a coaxially aligned manner. BIPLi-ING. CONRAD COOKING ψ ATE NiAN WA LI I ι t ι ι ι t