DE2304658A1 - VALVE BODY PIPE CONNECTOR - Google Patents

Description

PATE-NfAkWALTSBURO TlEDTKE - BüHLING "KlNNE

TEL. (0811) 539653-55 TELEX: 524 845 tipat CABLE ADDRESS: Germaniapatent Munich

8000 Munich 2

Bavariaring 4

Box 202403 January 31, 1975 B 5196 / ICI case M.24713 / 24861

Imi Opella Limited Birmingham, UK

Valve body-to-tube connecting device

The invention relates to a valve body-3-pipe connecting device and is concerned with such devices in which pipes extend from or extend to a valve body and are so close to one another that it is impossible to separate each pipe with its own screw thread device on the valve body to attach. Hiscbhähne or mixing valves for bathrooms and sinks are sometimes made of units called "single hole" -Mischarmaturen referred _o v / ground in which the above problem by

code-constructive structure results. In the case of a "one-hole" - * "* _{mixer tap, as it is referred to in the following description ^ 7} , inlet channels of the tap body are for hot and

σ cold inflows arranged close together, so that the Tap into a single hole of a support (e.g. bathtub or

German Bank (Munich) Acct. 51/61070 Dresdner Bank (Munich) Acct. 3939 8 "pn.tnrhorl · iMiinr *" ni iei

Sink) can be fitted and two inlet lines enter the channels through this hole.

The traditional way of connecting hot and cold fluid inlet pipes a mixer tap with a single hole, the pipes are soldered to the tap body in order to connect them to the inlet channels associate. This can be done zv / ar with metal taps, but it would be useful to solder by a connection process which allows the taps to be removed more easily than after soldering is possible. Apart from this, it is impossible to do the soldering for the union of metallic inlet or supply pipes to be used with valve bodies made of plastic material.

According to the invention has a valve body-pipe connecting device a valve body with a plurality of channels for the flow of a fluid, wherein the channels have openings facing in the same direction from the body, and a plurality of tubes, each align with one of the openings, as well as a rigid one Washer that is held in place against the valve body and has several holes through each a tube goes, and exerts an axial force on a shoulder of each tube, so that by working contact of the base body with the shoulder of each tube, the latter is held in alignment with the opening of the associated channel will.

309834/0380

The support body is advantageously made on the valve body with the aid of a mechanical fastening device fixed in its location.

In one embodiment of the invention, the fastening device is a nut with a screw thread is received on the valve body, 'with all tubes running through the bore of the nut; there is between the Nut and a shoulder of each tube a rigid base body arranged - so that through the nut on the base body an axial force is exerted as a result of the working contact with the shoulder of each tube in line with the opening of an associated channel in the latter its location.

In a further embodiment of the invention, the fastening device is formed by screws, which extend through the 'base body and are received in threaded holes in the valve body.

If the valve body and the base body are made of metal, the base body can pass through Hard soldering or soft soldering connected to the valve body and set in its position.

Sealing devices are advantageously provided, which enclose each tube and seal it fluid-tight against the valve body.

309834/0380

The shoulder around each tube can be formed in the usual way by a separate O-ring, which is located on each pipe end section. Preferably, however, a rigid shoulder is provided that one forms an integral part of the tube. The shoulder is advantageously used as part of a radially outwardly v / ironing pipe flange formed by a radially outward deformation of an annular wall section ^ of the pipe is formed.

The invention "will be explained in the following on the basis of a schematic Drawings explained in more detail on two exemplary embodiments.

ig. 1 is a cross-sectional view of a part a "one-hole" mixer tap attached to a sink and pipes having, according to a first embodiment of the invention on the tap are attached $

FIG. 2 is a view corresponding to FIG. 1 and illustrating a further embodiment of the invention;

Figure 3 is a view in the direction of the arrow "A" in FIG. 2.

309834/0380

In the first embodiment of the invention has a "one-hole" mixer tap made of plastic material a body. 1 with a connecting piece 2, which is received by a through hole 3 in the top 4 of the sink will. The tap body is secured with the help of a retaining nut 5 set in the hole; the nut 5 is on an external thread of the connector 2 below the sink top added so that a shoulder 6 of the body against the Top of the sink is squeezed.

The tap has two channels 7 for hot water and cold water; these channels run side by side the connector 2 and extend to enlarged channel openings 8 on the underside of the connector 2.

The water is the channels 7 through two inlet pipes 9 supplied, which are provided with end portions which fit snugly within the enlarged channel openings 8 recorded v / earth. Each tube 9 is provided with an integral, radially outwardly directed flange 10 provided at one end. This flange is formed from the pipe wall using known compression techniques. In In this special case, a radially outwardly directed annular bead is formed in the pipe wall in that a Roll is guided around the inner surface of the pipe wall and pressed against it. The pipe is then underneath of the bead held in place while on the open end

3098 3 4/0380

Axial pressure is applied; since the area of the bead is weaker than the rest of the pipe, the pipe wall folds on it Bead together and is pressed radially outward to convert the bulge into a flange 10, the one downward shoulder 10a.

Each flange 10 holds a sealing device in the form of a resilient O-ring 11, the pinched between the cylindrical surface of the enlarged channel opening and the outer surface of the tube 9 is.

There is a pipe fastening device is provided, which consists of a nut 12 and a rigid metallic Base body 13 is made. The base body is provided with two holes 14 through which the two tubes 9 run, wherein the flanges 10 are located between the O-rings 11 and the base body 13. The mother has a hole 15 through which both tubes extend; the nut is screwed onto the screw thread of the connector 2. A flange 16 of the nut exerts an axial force on the base body 13 in the direction of the valve body the end. Since the body 13 is rigid} this in turn becomes a Axial force is exerted on shoulder 10a around each flange 10 so that the tube is held in place is and the associated O-ring 11 is held so that The passage of water is prevented.

30983Λ / 0380

It was found that in the aforementioned connecting device, the pipe fastening device rigidly holds the pipes in a sealed position and the whole unit can be released without difficulty.

In the second embodiment according to Figures 2 and 3, an ' ^M single-hole' mixer tap has a body 18 formed from plastic material with a connecting piece 19 'which is received by a through hole 20 in the top of a sink 21. A retaining nut 22 holds the body As in the first embodiment, channels 18 run along the neck to openings 24 which receive end portions of inlet tubes 25. Each tube has an integral outer flange 26 which has an O-ring 27 between the surface of opening 24 and the Tube 25. The tubes 25 are fixed in position in the openings 24 with the aid of a rigid or solid base body 28. This base body is provided with two holes 29 through which the two tubes 25 extend so that the base body is against the Flanges 26. The base body of this second embodiment is made with the help of three self-tapping crossheads screws 30 set against the end of the connecting piece 9, the cross-head screws extending through associated holes in the base body and being received by threaded holes in the tap body. When the three screws are pulled, the base body grips the flanges of the two pipes and exerts an axial force on them around each flange

309834/0380

In a modification of this second embodiment, the valve body is made of metal, with the underlay body is held against the valve body with the help of three screws and these screws have parallel screw thread shafts which are screwed into holes in the body provided with appropriate threads.

In a third embodiment (not shown) there is a valve body made of metal, with a metallic base body by brazing or soft soldering with the Valve body is connected.

309834/0 380

Claims (7)

Claims 1 ./ valve body pipe connection device, characterized by a valve body (1) with several channels (7) for the flow of a fluid, , which have openings (8) which point from the body in the same direction, through several in each case with one of the openings aligned pipes (9) and by a rigid base body (13) j which is in position against the valve body is held in place and has several holes each of which has one of the tubes through it and an axial force on a shoulder (10) each tube exerts so that the latter ^ is set in alignment with the opening of an associated channel in its position. 2. Device according to claim 1, characterized in that the base body (13,) with the aid of a mechanical fastening device (16) on the faucet body (1) can be determined. 3. Device according to claim 2, characterized in that the fastening device has a nut (12) which is seated on the valve body by means of thread engagement, all tubes extending through a bore in the nut and between the nut and a shoulder each A rigid support body (13) is enclosed in the pipe, 309834/0380 so that one exerted by, the mother on the base body Axial force by working contact with the shoulder of each tube this in alignment with the opening of an associated one Canal holds in its position. 4. Device according to claim 2, characterized in that that the base body (28) 'with the help of screws (30) is held in its position, which extend through the base body and are received in threaded holes within the valve body. 5. Device according to claim 1, characterized - shows that the valve body (1) and the base body (13) consist of metal and the base body is attached to the valve body by soft soldering or hard soldering is. 6. Device according to one or more of the preceding claims, characterized by a Sealing device (11; 27), which encloses each pipe (9; 25) in a fluid-tight manner, to the pipe against the Seal valve body. 7. Setup according to one or more of the preceding claims, characterized in that the shoulder (10; 26) of each tube as part of one with the One-piece tube, radially outwardly in a ring 309834/0380 extending pipe flange, is formed by radially outward deformation of an annular wall portion of the tube is formed. 3Ü9834 / 0380.