EP1111141A2 - Installation fitting with releasable socket coupling connection - Google Patents

Abstract

The fitting comprises a wrench bar 4 having a cap accessible from above ground, a tube 5 surrounding the bar and a releasable coupling 3 for engaging a valve spindle. The bar may be extended by extensions, interconnection being via square sockets/releasable adaptors. Tube 5 may comprise telescopic sections 5a-d. Release of the coupling may be facilitated by a bolt having a head located in a blind bore in the sleeve and a threaded portion located in a threaded bore in the sleeve, the bolt extending through the wrench bar. Alternatively, release is facilitated by a pair of spring biassed pins or wedges. The pins may be located in a tube insertable into the wrench bar. The upper end of the bar may be coupled to a common unit (32, figure 11) which is connected to but free to rotate relative to the tube 5.

Description

The invention relates to an installation set for those running in the road substructure Pipes, especially fresh water pipes, which end in the street cap Key bar, which is surrounded by a sleeve tube and the its end facing the spindle of the line slide to be connected to it Dome is assigned.

Fresh water pipes, drains etc. Ä. misplaced, some of the connections to the customers only after the construction work getting produced. To shut down the respective water pipes in sections or to be able to open and establish the connection with the customers are in Installation sets are provided at regular intervals. To attach the key bar on the spindle of the line slide or the other running in the ground To facilitate the fitting, quick-release coupling sockets are known, which Have pins that automatically when plugged onto the dome sleeve in its holes click into place. Such a set is for example from DE-PS 44 38 205 known. Key bar and coupling sleeve are in holes in one hammered pin connected together. The pin has an oversize, so that it is driven into the bore with a very high expenditure of force and then at most again with very great effort and only solved when not installed can be. Another disadvantage was that a built-in set or a key bar only equipped with a certain dome sleeve and accordingly can only be assigned to the same spindle. Therefore, for the multitude different connections each have a special installation set with the special Components are used. This is especially true when rod and sleeve are formed in one piece.

The present invention therefore has the task of a built-in set to create the most flexibly adaptable and with different types of connections or can be combined by line slides.

This problem is solved in that the key bar or one with the Key bar detachably connected key bar extension with the coupling sleeve is detachably connected.

Thus, key bars with different dome sockets can be easily combined, for the respective spindle, only the suitable sleeve, regardless of whether it is a VAS or KOS sleeve, selected and with the Key bar can be connected. After it was previously necessary to use the pens Hammer blows out of the holes again, which, if anything, only The solution according to the invention was very easy to carry out with great effort manageable. A key bar type or connection, for example a standardized one Screw size, can be combined with different coupling sleeves, so that as the only component to be adapted to the line slide valve, coupling sleeves in different Shape and size must be kept. This is especially true then when a telescopic or extendable key bar with a telescopic Sleeve tube is used, which also under different conditions is designed to be adaptable. The key bar can be extended by a key bar be extended, the latter then being connected to the dome sleeve. The Connections between the components of the key bar, key bar extension and Dome sleeves are quasi standardized. The installation set according to the invention is both in length using appropriate key bar extensions or by means of telescoping the key bar as well as the dimensions of the connection components completely flexible and can be used in individual components, according to a modular system, Find use.

Such a releasable connection can be achieved if the key rod or key rod extension and coupling sleeve are connected to one another via a latching device. This is also a connection that can be flexibly handled and assigned to different coupling sleeves as required. Dome sleeves adapted to different spindles can be combined or replaced with little effort, especially since only one type of locking device
needs to be used. A latching device can also be released easily and without the use of complex tools by exerting a force opposite the action of the latching means on the latter.

Two pins connected by a spring can serve as a locking device, automatically into the holes on the opposite faces of the dome are arranged and formed snap. This makes it particularly easy to use Latching device created during assembly without the use of tools can be manufactured. When dismantling, only the opposite must be Pins are compressed against the force of the spring so that the Pulls the key bar out of the dome sleeve. The pens are in a case stored, which is designed to correspond to the key bar and in this is used. Allowing the pins to move in their axial direction, this housing also provides the receptacle for the arranged between the pins Spring. For releasing the snap connection between the coupling sleeve and the key bar the pins are, for example, in the axial direction by means of a plier-like tool compressed against the force of the spring, the pins due to the arrangement of the housing keep their position in the compact housing.

The pins are expediently insertable into the key bar Housing slidably arranged lengthways. This housing can be inserted into the key bar from below be inserted and snaps into the holes with the two pins the key bar. After attaching the coupling sleeve or the key rod extension the pins also snap into place against these components. For this purpose, the housing also has bores at the ends receiving the pins on, which serve to accommodate the heads of the pins. The pens in turn are over one Spring slidably mounted against each other, which is also included in the housing becomes.

In addition, it is provided that the pins have flanges which bear against the pressure of the spring on the inside of the housing. These flanges are designed to
to allow the pins to snap into the holes in the key bar.

An alternative to forming a locking connection is that Key bar or key bar extension and coupling sleeve over one in the Bores in the key rod or key rod extension and coupling sleeve insertable mandrel are interconnected. The mandrel is a perfect fit for the holes trained in key bar and / or coupling sleeve and serves as pull-out protection of these two components. The holes in the key rod and coupling sleeve come in the installed state to lie on top of each other, in this position the mandrel which does not have to be tapered, then used and can accordingly can be easily solved again. Because the thorn is not like the one from the prior art Technology known, larger-sized pin hammered in with great effort and must be dismantled, the connection between the coupling sleeve and the key rod, for example if the mandrel is threaded, without large Effort, if necessary even in the installed state, can be dismantled.

A preferred embodiment results when in the dome and in the key rod or the key rod extension each have a hole for Inclusion of a screw is provided, which is in the area of the dome sleeve and / or key rod or key rod extension a corresponding one Has thread. This is a standardization for the installation set Components used allows only one type of screw for different Types and dimensions of installation sets can be used. The effort with Assembly and disassembly of the connection between key bar and coupling sleeve is particularly low in connection with screws. The thread for the admission the screw can be used both in the key bar and coupling sleeve and only in be one of the components.

In order to prevent the screw from protruding from the dome sleeve, there is a blind hole in the dome sleeve to accommodate the screw head
Screw provided. This blind hole can also extend into the area of the key rod.

As an aid when assembling and disassembling the installation set, that the pins are rounded or chamfered at the end opposite the flanges are trained. Thus, on the one hand, the pins snap into place Bores assigned to the key rod are facilitated, on the other hand the pins, when pressed against each other with the pliers-like tool, more easily Press the wall of the dome sleeve until the latch is released.

Another embodiment of the invention provides that the locking device from at least one fixing element assigned to the coupling sleeve and one into the Bores in the key rod engaging locking wedge is formed, fixing element and locking wedge are connected by a spring. While at the previously presented Embodiment the pins of the key bar are assigned and in the holes snap into the dome sleeve, the pins are the dome sleeve in this embodiment assigned and snap into holes in the key bar. It is A spring is assigned to each locking wedge.

The fixing element is fixed with a press fit against the coupling sleeve. On the inside of the locking element is connected to the spring, which in turn on it other side is connected to the locking wedge, so that the locking wedge in the hole in the key bar engages.

In order to enable a particularly good adaptation of the installation set, that key bar and key bar extension via an adapter are connected. So that the key rod can be extended to any dimensions. can be shortened and can therefore be optimally adjusted. Also one for a long time The installation kit used can be used, for example, when raising the road surface be extended. The adapter corresponds to the key bar on both sides or their extension, regardless of whether the key bar is in turn solid or hollow.

The connections between adapter and key bar or their extension are accordingly over bores or mandrels or locking devices, such as Locking pins or wedges made. For this purpose, the adapters have corresponding holes, which may be equipped with threads. For transport and assembly A built-in set thus has considerable advantages, since each built-in set is based on the construction site can be put together individually. This applies to both the length the key bar as well as the dome to be used.

For a particularly good connection between the key bar or key bar extension and to be able to manufacture adapters, it is provided that the adapter as corresponding to key bar and / or key bar extension trained key holder is formed, in which the key bar and / or the key bar extension can be inserted. The adapter is for example in a key tube is inserted until it fits into both the adapter and the key tube cover provided holes so that the fastener, for example a screw that can be used. The key bar holder can also be used as Be formed internal component, which includes the key rod or its extension becomes.

Accordingly, the components are designed so that the adapter and key bar or key bar extension releasable, preferably by locking together are connected. It has already been indicated that just like screws, locking devices corresponding in the key bar or its extension and adapter can be trained.

To release the locking connections, it is provided that the installation set with is equipped with a release device, each leg having an axle stub on the inside assigned to which holes in the dome socket or key rod extension is arranged and designed accordingly. This plier-like tool enables a particularly simple release of the snap connections between individual Components by placing the pins in their axial direction against the force of the pins connecting spring are pressed. Advantageously, the solution remains Component, for example the coupling sleeve due to the design and arrangement of the Axle stubs clamped on the inside of the legs between the latter. This is because remember that the pin initially, for example, when loosening the key rods / coupling sleeve connection be pushed out of the dome sleeve and take the position of the pins, as the stub axles in the holes of the Dome sleeve are used. This makes the dome socket very easy, and without the risk of it falling. Likewise, the plier-like Use the release device to assemble the individual components, by first inserting the stub axles into the holes in the coupling sleeve, whereupon the coupling sleeve is pushed over the key rod or its extension until the pins snap into the holes in the dome sleeve.

A particularly advantageous embodiment is that in which the key bar surrounding sleeve tube made of several telescopically arranged single sleeve tubes is composed, which have pull-out protections. In addition to the good packaging and Transport options through very small components is a particularly good length adjustment the installation set is possible because of the length of the key bar and sleeve tube are variable and all attachments can be detachable. Anyone can Installation set can be put together on site. Ensure pull-out protection the optimal telescopability of the sleeve tube.

Another advantage is achieved if the the connection area of the coupling sleeve and spindle surrounding the bell detachably connected to the lower single sleeve tube is trained. This can be done, for example, by a screw connection. Also this serves the purpose of creating a flexibly adaptable installation set in which also the bell adapter only on site with the other components of the installation set needs to be combined.

Accordingly, the bell with the lower single sleeve tube is locked, by means of a plug connection secured by a catch or by screwing connected. The same applies to the single sleeve tube and its extension, the can also be locked together, inserted into each other or screwed, depending according to the application. The nested components, single sleeve tube and bell, also be secured by an additional latch.

A preferred embodiment of the invention provides that the Key bar rotating sliding washer and the square cover a common unit form. This unit is preferably made of plastic and can manage without additional reinforcement of the square protector. Is about a pen this unit is also connected to the key bar. The assembly snaps into place opposite the edge cap and is therefore relatively solid. At the same time this component offers a high sealing effect.

A good connection between the sleeve tube and the sleeve tube cap is then achieved, if the edge cap fixing the sleeve tube is arranged with flexible and / or trained locking lugs is equipped and if the sliding washer with form and barbs corresponding to the detents from position are equipped. The sleeve tube and the edge cap are made of a relatively flexible and soft plastic, the latching lugs are accordingly arranged and / or designed to be flexible. The relatively solid component formed by the square protector and sliding washer with the Barb engages with these latches. It remains very easy to move the installation set when turning the key rod because the between Sliding disc and sealing washer and the associated frictional resistance is relatively small. Also the frictional contact between barbs and locking lugs is very small, if at all, so that the key bar can be operated very easily leaves.

The invention is characterized in particular by the fact that an installation set is created that a flexible adaptation to almost all conditions in Form of a modular system offers. The built-in set is made up of a large number together connected items assembled and can therefore with regard to all Dimensions can be put together individually. Connections are detachable, so that a subsequent extension is possible, the key bar can can be varied in length as required using key bar extensions. That too It is easy to replace individual components. Between the individual components key recordings are provided that are designed to correspond to these and are locked with them. On the spindle facing the line slide At the end of the installation set, the coupling sleeve can also be detached with the key bar or the key rod extension connected. With the invention a high Degree of standardization used in connection with built-in sets Realized components. The installation set no longer needs to be delivered completely from the factory, but can be put together directly on site for the respective application by combining the appropriate components. At the same time, however, the possibility of complete installation sets remains to deliver. In connection with a composed of single sleeve tubes Sleeve tube and a screwable bell adapter can be extended by the possibility the key bar and the detachable connection between the key bar and coupling sleeve particularly flexible installation sets can be created. It is particularly advantageous that the sliding disc rotating with the key rod and the square protector form a common structural unit.

Fig. 1

den teilsweisen Längsschnitt durch eine Einbaugarnitur,

Fig. 2

eine Schlüsselstangenverlängerung

Fig. 3

eine Schlüsselstangenverlängerung mit vier verschieden bemaßten Kuppelmuffen,

Fig. 4

die perspektivische Ansicht einer Kuppelmuffe,

Fig. 5

den Schnitt durch eine Kuppelmuffe mit Verbindung zur Schlüsselstange,

Fig. 6

den Schnitt durch eine Einbaugarnitur im unteren Bereich,

Fig. 7

den Schnitt durch eine Kuppelmuffe mit Raststiften,

Fig. 8

die vereinfachte Darstellung eines Gehäuses mit Stiften,

Fig. 9

eine Lösevorrichtung,

Fig. 10

den Schnitt durch eine Kuppelmuffe mit Rastelementen und

Fig. 11

die Verbindung zwischen Gleitscheibe und Randkappe in teilweise geschnittener Ansicht.

Further details and advantages of the subject matter of the invention emerge from the following description of the associated drawing, in which a preferred exemplary embodiment is shown with the necessary details and individual parts. Show it:

Fig. 1

the partial longitudinal section through an installation set,

Fig. 2

a key bar extension

Fig. 3

a key bar extension with four different sized dome sleeves,

Fig. 4

the perspective view of a dome sleeve,

Fig. 5

the cut through a coupling sleeve with connection to the key bar,

Fig. 6

the cut through an installation set in the lower area,

Fig. 7

the cut through a dome sleeve with locking pins,

Fig. 8

the simplified representation of a housing with pins,

Fig. 9

a release device,

Fig. 10

the section through a dome sleeve with locking elements and

Fig. 11

the connection between the sliding washer and the edge cap in a partially sectioned view.

Fig. 1 shows an installation set 1, which on the spindle of the line slide associated end 7 of the key bar 4 has a coupling sleeve 3. Key bar 4 and coupling sleeve 3 are detachably connected together. The sleeve tube 5 is in The length is optimally adjustable, since it is composed of the individual sleeve tubes 5a, 5b, 5c, 5d is, the lowest sleeve tube 5d with the connection area of the coupling sleeve 3 and spindle surrounding bell 24 is detachably connected. With this detachable The connection is a one secured by a safety catch 18 Plug connection between the lower sleeve tube 5d and bell 24. Thus one Installation set 1 according to a modular system both at the factory and on the construction site can be put together and used individually for the application. It is also possible to add components later.

Fig. 2 illustrates the possible combinations of the installation set according to the invention. Here a key bar extension 4 'is shown, which with a Adapter 6, which is designed as a key receptacle 17, connected via a latch is. The pins 12a, which are used for connection to the adapter 6, can be seen, as well as the pins 12b, which are for connection to the one not shown here Serve dome sleeve.

In addition to the length adjustment, the key rod 4 or its extensions can be equipped with different types of coupling sleeves 3, which Fig. 3 clarifies. Here four different coupling sleeves 3a, 3b, 3c, 3d are shown each with the same key rod extension 4 'and the same fasteners can be used in combination. With the dome sleeves it can be advantageous both around VAS coupling sleeves 3a and KOS coupling sleeves 3b, 3c, 3d act.

A screw connection between key bar 4 and coupling sleeve 3 is also 4, wherein here a hexagon socket screw 19 is used as mandrel 2.

The connection between key rod 4 and coupling sleeve 3 is also an object the sectional view of FIG. 5, where the key rod 4 and coupling sleeve 3 connecting screw 19 is shown, which the releasable connection between Key tube 4 and coupling sleeve 3 represents. In the key tube 4 is a bore 8 in the dome sleeve 3 to recognize a bore 20. Both are equipped with a thread. The screw head 11 is supported in the blind bore 9 in the coupling sleeve 3. Loosening this screw 19 and thus the connection between the coupling sleeve 3 and Key bar 4 is thus possible in a particularly simple manner, with the Space requirements for the associated movements is extremely small.

6 shows the formation of a coupling sleeve connection by means of a latching device 10. The pins 12, which are connected to one another via a spring 13, serve as such. Pins 12 such as spring 13 are arranged in a housing 26 which the
Area of the key rod 4 is assigned so that the pins 12 snap into the coupling sleeve 3 or bores provided therein. Also shown is the screw connection between bell 7 and the lower sleeve tube 5d.

A more detailed representation of the locking connection between coupling sleeve 3 and Key bar 4 shows Fig. 7. The housing 26, which the two pins 12 with the interposed spring accommodates the key rod 4 is associated with the it could also be a key bar extension. The pins 12 snap into place in holes 27 in the coupling sleeve 3, so that a releasable connection is made is. To facilitate the pins 12, or their ends 16 are rounded here. This makes the locking device 10 easy to move, that is, assembly and disassembly the locking device 10 facilitated. The pins 12 have flanges 15, which rest on the inside 14 of the key rod 4, so that this is not through the Force of the spring 13 pushed out through the holes 25 in the key rod 4 can be.

Fig. 8 shows the very simplified representation of a housing 26, which on lower end of the key rod 4 is inserted into this. The pins 12 protrude from the Holes in the housing 26 out and snap into the holes 8 in the key bar 4 a. The housing 26 corresponds to the inner cross section of the key rod 4 trained so that it can be inserted from the lower end into this until the Snap pins 12 into the holes 8.

FIG. 9 shows a release device 36 for snap-in connections between individual components of the installation set. The release device 36 has two legs 37 which are designed to be movable towards one another at their ends 39. Such a release device 36 is expediently made of plastic in order to ensure this flexibility. Axle stumps 38 are arranged at the ends 39 of the release device 36 and can be inserted into the bores of the connecting components of the installation set, so that the locking pins therein are pressed out of these bores in the direction of their longitudinal axis, so that the locking connection is released.
Advantageously, when a key rod / coupling sleeve connection is loosened, for example, the coupling sleeve remains in the position clamped in by the release device 36, so that these components can be separated or assembled easily.

A reverse orientation of the detent is shown in FIG. 10, with the holding elements 21 of the coupling sleeve 3, and are assigned via press fit and the Locking wedges connected to the holding element 21 via the spring 23 in the area of Snap the key bar 4 or the hole 25 into place. In contrast, this engagement occurs to that described in FIGS. 6 and 7 as well as that in reverse Orientation as soon as the bore 25 and the bore 20 overlap and can correspondingly simple, for example using a plier-like tool, as shown in FIG. 9 is shown, can be solved again.

Fig. 11 shows the connection between the sleeve tube 5 and the square protector 30 and sliding disc 31 formed common structural unit 33. This is special solidly formed and snaps with their barbs 35 against the locking lugs 34 of the Edge cap 33 a. Accordingly, the locking lugs 34 are small and flexible arranged or trained. The assembly 32 is very easy to operate, although the Square protector 30 is equipped without reinforcement, because between the sliding washer 31 and Edge cap 33 only has a small separating surface and therefore hardly any friction occurs. The same applies to locking lugs 34 and barbs 35, which hardly or not at all lie together.

All of the above-mentioned features, including those that can only be taken from the drawings alone and in combination are regarded as essential to the invention.

Claims (20)

Installation set (1) for pipes running in the road substructure, in particular fresh water pipes, which has a key rod (4) ending in the street cap, which is surrounded by a sleeve tube (5) and which has an end (7) on its end facing the spindle of the line slide to be connected to the coupling sleeve (3),
characterized by
that the key bar (4) or a key bar extension (4 ') detachably connected to the key bar (4) is detachably connected to the coupling sleeve (3). Installation set according to claim 1,
characterized by
that the key bar (4) or the key bar extension (4 ') and coupling sleeve (3) are connected to one another via a latching device (10). Installation set according to one or more of the preceding claims,
characterized by
that serve as a locking device (10) connected by a spring (13) pins (12), which are arranged and formed automatically in the bores (8) on opposite end faces (26, 27) of the coupling sleeve (3). Installation set according to one or more of the preceding claims,
characterized by
that the pins (12) are arranged to be longitudinally displaceable in a housing (26) which can be inserted into the key rod (4). Installation set according to one or more of the preceding claims,
characterized,
that the pins (12) have flanges (15) which bear against the pressure of the spring (13) on the inside of the housing (26). Installation set according to one or more of the preceding claims,
characterized by
that key rod (4) or key rod extension (4 ') and coupling sleeve (3) are connected to one another via a mandrel (2) which can be inserted into the bores (20) in the key rod (4) or key rod extension (4') and coupling socket (3) are. Installation set according to one or more of the preceding claims,
characterized by
that in the coupling sleeve (3) and in the key rod (4) or the key rod extension (4 ') there is a hole (8, 20) for receiving a screw (19) which is in the area of the coupling socket (3) and / or key bar (4) or key bar extension (4 ') has a corresponding thread. Installation set according to one or more of the preceding claims,
characterized by
that a blind hole (9) is provided in the coupling sleeve (3) for receiving the screw head (11) of the screw (19). Installation set according to one or more of the preceding claims,
characterized by
that the pins (12) are rounded or beveled at the end (16) opposite the flanges (15). Installation set according to one or more of the preceding claims,
characterized by
that the locking device (10) is formed from at least one fixing element (21) assigned to the coupling sleeve (3) and a locking wedge (22) which engages in the bores (20) in the key rod (4), the fixing element (21) and locking wedge (22 ) are connected by a spring (23). Installation set according to one or more of the preceding claims,
characterized by
that the fixing element (21) is fixed with a press fit with respect to the coupling sleeve (3). Installation set according to one or more of the preceding claims,
characterized by
that the key bar (4) and the key bar extension (4 ') are connected via an adapter (6). Installation set according to one or more of the preceding claims,
characterized by
that the adapter (6) is designed as a key receptacle (17) which corresponds to the key rod (4) and / or the key rod extension (4 ') and into which the key rod (4) and / or the key rod extension (4') can be inserted. Installation set according to one or more of the preceding claims,
characterized by
that the adapter (6) and key bar (4) or key bar extension (4 ') are detachably, preferably connected to each other by locking. Installation set according to one or more of the preceding claims,
characterized by
that the installation set (1) is equipped with a release device (36) which has two legs (37) which can be moved towards one another at its ends (39), with each leg (37) being assigned an axle stub (38) on the inside, which is associated with the bores (20, 9) in the dome sleeve (3) or key rod extension (4 ') are arranged and designed accordingly. Installation set according to one or more of the preceding claims,
characterized by
that the sleeve tube (5) surrounding the key rod (4) is composed of several telescopically arranged individual sleeve tubes (5a, 5b, 5c, 5d) which have pull-out safeguards. Installation set according to one or more of the preceding claims,
characterized by
that the bell (24) surrounding the connection area of the coupling sleeve (3) and the spindle is detachably connected to the lower individual sleeve tube (5d). Installation set according to one or more of the preceding claims,
characterized by
that the bell (24) is connected to the lower individual sleeve tube (5d) by latching, by a plug connection secured by latching, or by screwing. Installation set according to one or more of the preceding claims,
characterized , characterized ,
that the sliding disc (31) rotating with the key bar (4) and the key protector (30) form a common structural unit (32). Installation set according to one or more of the preceding claims,
characterized by
that the edge cap (33) fixing the sleeve tube (5) is equipped with resiliently arranged and / or designed latching lugs (34) and if the sliding disc (31) has barbs (35) corresponding in shape and position to the latching lugs (34) is equipped.

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