DE202017105078U1 - joint assembly - Google Patents

Abstract

Arrangement for producing a rotatable connection between a first and a second component (10; 11) of a water installation, comprising (a) a first connection piece (40) on the first component, with a slot (42) which runs through the entire connection piece (40) extends in a plane perpendicular to the connection axis and has a width which is less than the diameter of the connection piece; (b) a second connection piece (14) on the second component (10), wherein the first connection piece (40) has an inner diameter which is larger than the outer diameter of the second connecting piece (14), so that the second connecting piece (14) in the first connecting piece (40) can be inserted, and wherein the second connecting piece (14) has a groove (58), which extends in the connected state at the same height as the slot (42) in the first connecting piece (40), (c) a clamp (60), which e for the axial fixation of the inserted second connecting piece (14) in the first connecting piece (40) through the slot (42) is inserted and engages in the inserted state in the groove (58) in the second connecting piece (14), characterized in that ( d) the clip (60) has at least one barb (68) which engages in an edge (56) in the region of the slot (42) and secures the clip (60) against movement in the direction opposite to the direction of insertion.

Description

Technical area

1. (a) einen ersten Verbindungsstutzen an der ersten Komponente, mit einem Schlitz, welcher sich durchgängig durch den gesamten Verbindungsstutzen in einer Ebene senkrecht zur Verbindungsachse erstreckt und eine Breite aufweist, die geringer ist als der Durchmesser des Verbindungsstutzens;
2. (b) einen zweiten Verbindungsstutzen an der zweiten Komponente, wobei der erste Verbindungsstutzen einen Innendurchmesser aufweist, der größer ist, als der Außendurchmesser des zweiten Verbindungsstutzens, so dass der zweite Verbindungsstutzen in den ersten Verbindungsstutzen einsteckbar ist, und wobei der zweite Verbindungsstutzen eine Nut aufweist, welche im verbundenen Zustand auf der gleichen Höhe erstreckt, wie der Schlitz im ersten Verbindungsstutzen;
3. (c) eine Klammer, welche zur axialen Fixierung des eingesteckten zweiten Verbindungsstutzens in dem ersten Verbindungsstutzen durch den Schlitz einschiebbar ist und im eingeschobenen Zustand in die Nut in dem zweiten Verbindungsstutzen eingreift.

The invention relates to an arrangement for producing a rotatable connection between a first and a second component of a water installation, comprising

1. (A) a first connecting piece to the first component, with a slot which extends throughout the entire connecting piece in a plane perpendicular to the connecting axis and has a width which is smaller than the diameter of the connecting piece;
2. (B) a second connecting piece on the second component, wherein the first connecting piece has an inner diameter which is greater than the outer diameter of the second connecting piece, so that the second connecting piece is inserted into the first connecting piece, and wherein the second connecting piece has a groove which in the connected state extends at the same height as the slot in the first connection piece;
3. (C) a clip, which is inserted for axial fixation of the inserted second connecting piece in the first connecting piece through the slot and engages in the inserted state in the groove in the second connecting piece.

The clamp engages in the groove. As a result, an axial movement in the direction of connection of the components is no longer possible. A rotational movement, however, remains possible. The rotatable connection allows the installation of fittings or control units in any mounting position. So it does not matter anymore how the pipeline runs. The fitting part can always be turned into the desired or required installation position with the same components.

State of the art

DE 10 2012 107 594 A1 discloses an arrangement in which a non-water-bearing control device is mounted on the upwardly projecting connection piece of a fitting arrangement. The connecting piece has a slot. In the slot a clip is inserted. The clamp fixes the part of the control unit projecting in the connecting piece in the axial direction. The control unit remains rotatable. The control unit can be removed by removing the clamp.

Furthermore, arrangements of the applicant are known, in which two fittings are held together releasably by a clamp, so that the connection is fixed in a rotationally movable manner in the axial direction.

In known arrangements, the clip is easy to solve. If two pressurized, water-bearing fittings are connected together, there is a risk that the clamp will loosen and leakage will occur. But even if one of the components is not a water-bearing fitting part, it is disadvantageous when the clip releases. The clip is comparatively small and can easily be lost.

Disclosure of the invention

It is an object of the invention to provide a cost-rotatable connection of two parts of fittings in which the clip is securely fixed.

According to the invention the object is achieved in that the clip has at least one barb, which engages in an edge in the region of the slot and secures the clip against movement in the direction opposite to the insertion direction. In the invention, the slot extends throughout the entire connecting piece over a width which is less than the diameter of the connecting piece. When the clip is pushed into the slot, it engages around the second connector and lies in the groove. In this way, the connection piece can not be moved in the axial direction. A rotation is still possible. The barb on the clip engages an edge in the region of the slot. As a result, the clamp is fixed and can not be easily solved without tools. The clamp can not be solved unintentionally, "by itself".

It is preferably provided that the barb is formed directly on the clip. Then no other components or components for permanent securing the clip are required. The barbs can already be molded during the manufacturing process of the clip.

In a further embodiment of the invention, it is provided that the groove is a circumferential annular groove. Then the clip engages in each angular position in the groove. The components can be installed continuously at any angle to each other.

The component of the water installation is preferably a water-conducting fitting, a part of a water-conducting fitting, an adapter, a pipe, a hose connection or a control unit. In particular, one of the components can be a valve for pressure and temperature control to be a kettle. If one of the components is an adapter with a suitable slot, then existing components can be retrofitted. The adapter with the slot is screwed or inserted into the connecting piece and fixed with a nut. Then, the second connection piece can be inserted with the groove in the thus fixed adapter.

In a further embodiment of the invention, it is provided that the first connecting piece has two regions which are separated by the slot and connected to one another at lateral transitions at the level of the slot, which each form an inner edge into which the barbs engage. Then remain at the height of the slot lateral transitions of the connecting piece. These transitions virtually form a bridge between the area above the slot and below the slot. The edges into which the barbs engage are advantageously the inner edges of these bridges thus formed. Then it is not necessary to form additional edges or engagement points for the barb on the connecting piece.

Preferably, it is provided that the clip is substantially U-shaped with two opposite elastic legs and a central part, wherein the legs have a distance which is less than the diameter of the second connecting piece in the region of the groove, so that the legs during insertion be pushed apart a bit. The clamp surrounds the second connection piece so with a bias. This additionally secures the clip.

In a further embodiment of the invention it is provided that the barbs provided on the leg ends and the ends are conical. This facilitates the insertion of the clip.

The mid-clamp may form a tool engagement with a tool that allows the clamp to be moved to release the barbs from the edge. The tool engagement may be, for example, an opening or recess. With the tool, the clamp can be moved so that the barbs are released from the edge. Then the clip can be removed and the connection released.

In a particularly preferred embodiment of the invention, an adapter is provided which is fixed in one of the connecting pieces to be connected and has a slot at a free end. Then existing fittings can be provided with the safer clamp connection.

If the connection is made at valve parts which are newly manufactured, a suitable slot can be provided directly to the connecting pipe to be connected. But there are also cases where this is not possible, or already existing fittings without such a slot. Then an adapter is advantageously provided, which is firmly inserted into one of the connecting pieces to be connected and fixed or screwed, for example, with a nut and which has a suitable slot at a free end. Then existing fittings can be provided with the safer clamp connection.

Embodiments of the invention are the subject of the dependent claims. An embodiment is explained below with reference to the accompanying drawings.

list of figures

• 1 is a perspective view of a boiler valve, which opens at too high boiler pressure or at high boiler temperature.
• 2 is a perspective view of an exhaust valve for emptying a water tank.
• 3 shows the valve 2 with loosened adapter and clamp.
• 4 Illustrates how the clip looks like in a slot in the adapter 3 is inserted.
• 5 is a vertical section through the arrangement 2 ,
• 6 is a horizontal section along a section line AA in 2 in which the clip is inserted.
• 7 is a horizontal section analogous to 6 with inserted and fixed clamp.

Description of the embodiment

1 is a perspective view of a boiler valve 11 which opens when the boiler pressure is too high or the boiler temperature is too high. Such a valve is known from South African patent no. 2007/08742 known and needs therefore, will not be described in detail here. The valve 11 has an inlet 13 with a connecting piece 17 which is connected to the boiler and an outlet 15 , Depending on the installation position, it may be necessary to use the outlet 15 to orient in different directions.

2 is a perspective view of an exhaust valve 10 for emptying a water tank. Such a valve 10 is from South African patent no. 2010/09247 known and therefore need not be described in detail here. The fitting has a cold water connection 16 and an outlet 74 , The fitting also has a connection piece 14 for connection to the water tank.

Such fittings form components of a water installation. The present embodiments provide that a connection of the connecting piece is made with a boiler or water tank. There are other fittings, valve parts, piping and control units, etc., which are connected by means of a connecting piece with other components. The present embodiment illustrates the connection without being limited to the specific application.

The 2 to 7 show that in general 10 designated outlet valve for emptying water tanks (not shown). Such emptying is required for example during maintenance or replacement of the tank. The exhaust valve includes a brass body 12 with a connecting piece 14 , The connection piece 14 is connected to an outlet of the tank in the manner described below. In addition, there is an inlet nozzle 16 with a union nut 18 intended. At the inlet pipe 16 a cold water supply can be connected.

Coaxial opposite to the connecting piece 14 is a cylindrical valve seat part 20 to the brass housing 12 formed. On the valve seat part 20 and a sleeve is a control handle 32 made of plastic with a hole 48 attached and fixed in the axial direction.

When the valve is open, the water flows out of the tank through the connecting piece 14 in the arrangement 10 , It then flows through the valve seat part 20 and past a valve closing body outward into the bore 48 , From there, the water reaches the outlet 74 , By turning the control handle 32 the valve closing body is in the axial direction in the valve seat part 20 moved and the valve closed.

There are various arrangements in which the orientation depends on the installation position. In the present embodiment, this is the cold water connection 16 , The connection piece 14 is therefore by means of an adapter 40 retrofitted, which is screwed into the connecting piece of the boiler. The adapter 40 but can also be inserted and fixed with a mother.

The adapter 40 is rotationally symmetric and has a slot 42 on. 6 and 7 show a horizontal section through the connecting piece 14 at the height of the slot 42 , It can be seen that the width of the slot 42 is less than the outer diameter of the connecting piece 14 , The slot extends over the entire depth to the end. The area 44 above the slot 42 and the area 46 below the slot 42 are about the remaining transitions 50 connected with each other.

The transitions 50 are part of the jacket of the adapter 40 , In 6 is recognizable that the transitions 50 an inner wall 52 have that with two edges 54 and 56 to lock. In the section plane AA in 6 and 7 has the connecting piece 14 an annular groove 58 on. This one is also in 5 to recognize.

For connecting the connection piece 14 with the adapter 40 or the connecting piece of the boiler to which the adapter 40 is fixed, becomes a bracket 60 from the top in 6 and 7 in the slot 42 inserted. The clip 60 is essentially U-shaped with two legs 62 and 64 and a middle part 66 , The ends of the thighs 62 and 64 are tapered or pointed. This facilitates the insertion of the clip 60 in the slot 42 , The legs of the clamp 60 are slightly elastic and are pushed apart when inserted.

Before the tapered portion of the ends are the legs 62 and 64 slightly widened. This will be a shoulder 68 educated. The shoulder 68 acts as a barb. With the shoulder 68 hooks the end of the legs in each case in the edge 56 one. This is in 7 shown. Then the clip 60 no longer be pulled up in the illustrations or dissolve. The clip 60 can now only be solved with a tool. This is a recess 70 in the middle area 66 provided the clip.

With the illustrated embodiment, an existing fitting is retrofitted by means of an adapter. For new fittings to be produced, it is of course possible, the slot 42 with edges 56 provided directly in the connecting piece.

The arrangement shown operates as follows:

The connecting piece with its own slot 42 or the connecting piece with adapter 40 is via the connecting piece of the valve 10 plugged. seals 72 seal the connection. In the assembled state, the slot is located 42 at the height of the groove 58 like this in 5 can be seen. Then we put the clip 60 in the slot 42 inserted. This is in 4 illustrated. If the clip 60 is fully inserted, as in 2 shown, the clamp lies with the thighs 62 and 64 also in the groove 58 , In this way the connecting pieces are fixed in the axial direction against each other. The clip 60 but still allows a rotation of the connecting piece or the connecting piece with the adapter against each other. The connected valve is therefore still rotatable.

The above invention has been described herein with reference to a specific embodiment. However, the description is only for illustration of the invention. The scope of the invention is capable of a variety of variations, which are to be determined solely by the scope of the appended claims. Thus, certain features in terms of construction, material, arrangement and structure of the embodiment are only useful embodiments. The connections can take on any configuration known to the person skilled in the art. This applies to all features and their combinations, as long as the claims do not disclose a specific combination of features as essential to the invention.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102012107594 A1 [0003]
• ZA 2007/08742 [0018]
• ZA 2010/09247 [0019]

Claims (9)

Arrangement for producing a rotatable connection between a first and a second component (10; 11) of a water installation, comprising (a) a first connection piece (40) on the first component, with a slot (42) extending through the entire connection piece (40) extends in a plane perpendicular to the connection axis and has a width which is smaller than the diameter of the connecting piece; (b) a second connecting piece (14) on the second component (10), wherein the first connecting piece (40) has an inner diameter which is larger than the outer diameter of the second connecting piece (14), so that the second connecting piece (14) in the first connecting piece (40) can be inserted, and wherein the second connecting piece (14) has a groove (58) which extends in the connected state at the same height as the slot (42) in the first connecting piece (40); (C) a clamp (60), which for the axial fixation of the inserted second connecting piece (14) in the first connecting piece (40) through the slot (42) can be inserted and in the inserted state into the groove (58) in the second connecting piece ( 14) intervenes; characterized in that (d) the clip (60) has at least one barb (68) which engages an edge (56) in the region of the slot (42) and secures the clip (60) against movement in the direction opposite to the direction of insertion , Arrangement according to Claim 1 , characterized in that the barb (68) is formed directly on the bracket (60). Arrangement according to one of the preceding claims, characterized in that the groove (58) is a circumferential annular groove. Arrangement according to one of the preceding claims, characterized in that the component (10) of the water installation is a water-bearing fitting, a part of a water-bearing fitting, an adapter, a pipe, a hose connection or a control device. Arrangement according to one of the preceding claims, characterized in that the first connection piece (40) has two regions (44, 46) separated by the slot (42) and connected to each other at lateral transitions (50) at the level of the slot (42) are each forming an inner edge (56), in which engage the barbs (68). Arrangement according to one of the preceding claims, characterized in that the clip (60) is substantially U-shaped with two opposite elastic legs (62, 64) and a central part (66), wherein the legs (62, 64) are spaced , which is smaller than the diameter of the second connecting piece (14) in the region of the groove (58), so that the legs (62, 64) are pushed apart during insertion something. Arrangement according to Claim 6 , characterized in that the barbs (68) provided at the leg ends and the ends are conical. Arrangement according to one of Claims 6 or 7 , characterized in that the bracket (60) in the central region (66) forms a tool engagement (70) for a tool with which the clamp (60) is movable such that the barbs (68) are released from the edge (56) become. Arrangement according to one of the preceding claims, characterized in that an adapter (40) is provided, which is fixed in one of the connecting pieces to be connected and at a free end has a slot (42).

Images