EP1239238B1 - Connecting fitting for a radiator - Google Patents

Abstract

The heater (2) has at least one opening (8) to which a heater is attached. Each opening is positioned opposite a fixture opening (9) through which leads a fixture pipe (14) which, together with a fixture arrangement (15) protrudes out of the opening in the heater. The fixture pipe in the area of the fixture opening rests against the housing (3) to form a seal. A supply pipe is attached to at least one supply opening.

Description

The invention relates to a connection fitting for a Radiator with a housing, at least one radiator opening, to which a radiator can be connected, and at least one supply opening to which a supply line can be connected, each radiator opening an attachment opening opposite is arranged through which a mounting tube is guided is that with a mounting arrangement from the radiator opening protrudes and one in the middle of the housing Has wall opening in its tube wall, which with the Supply opening is connected.

Such a connection fitting is known from DE 298 12 233 U 1 known.

Such fittings are mainly in Used with wall-mounted radiators, especially in connection with towel dryers. such Radiators are often no longer directly on the supply lines, d. H. one inflow and one Drain line, connected. Rather, they are Inlet and outlet line with the connection fitting connected, in which a radiator valve, for example a thermostatically controlled radiator valve can be arranged. The connection fitting can already be installed in front of the radiator so that the rest Installation work in the room in question, for example the attachment of a wall covering easily can be carried out. Then the radiator suspended and connected to the connection fitting.

Connecting the radiator to the connection fitting is relatively cumbersome. From DE 298 12 233 U 1 known case, union nuts are used, with which the fitting with corresponding radiator pipes get connected. For example, this requires that the radiator pipes are the right one Have length and be provided with a cone.

DE-A 27 24 694 describes a tap unit for one Radiator. Such radiator fittings are applied between the radiator and its return line, then on the inlet side of the radiator a control valve is attached. The unit shown is thus intended for the radiator in certain Emptying situations. You can also use this Fill the radiator with water after the radiator inlet is closed and the radiator has been emptied recently. The regulation of Amount of heat through the radiator using the described However, connection is not possible.

DE-U 298 12 233 shows, as said, a connection fitting for radiators with auxiliary heating, where like this is traditionally the radiator tubes with the help of Union nuts are attached to the fitting's connection piece.

DE-A 197 10 042 describes a connection panel for radiators - supply and / or return connections, whereby with this cover the connections of the valve to the associated pipe system and the thermostat mounting want to cover at the valve.

The invention has for its object the assembly to simplify.

This task is at the beginning of a connection fitting mentioned type solved in that the radiator opening and the mounting hole through a through hole are formed in the housing that over a Channel is connected to the supply opening, and a valve is arranged in the housing, which Flow of a heat transfer fluid through the radiator controls.

With the help of the mounting tube can now be easily Way a connection between the connection fitting and make the radiator. For this it is only required that the mounting tube in a screwed the corresponding opening in the radiator or plugged in. The mounting tube is from accessible from the other side of the housing, so that the handling of the mounting tube is relatively simple is. The assembly is not through the radiator even disabled. There is enough space for handling of the mounting tube. Through the A liquid path can easily be opened from the wall for a heat transfer fluid from the supply opening train to the radiator. Because the wall opening in the middle of the housing, i.e. in one section the mounting tube, which is located in the middle of the housing, is arranged play tightness problems not matter.

It is also advantageous if the fastening arrangement has a thread or a snap lock geometry. With a thread, a screw connection between Manufacture mounting tube and radiator. at Appropriate training of the radiator can also realize a snap connection.

It is preferred that the mounting tube in the area the mounting hole sealed on the housing is applied. This seal can be done for example realize relatively easily that the mounting tube at the end that is adjacent to the mounting hole is connected to a circumferential flange which, possibly with the interposition of a seal, rests on the housing. But of course other geometrical designs, for example a conical extension of the mounting tube, conceivable. So the mounting tube doesn't even have to more screwed to the housing. It is enough, if the mounting tube with its threaded section is screwed into the radiator. The through that Screwing induced tensile forces onto the housing are sufficient to place the radiator against the housing and also to seal the mounting tube from the housing.

The fastening tube preferably has on the side the fastening opening a torque application surface on. This allows the mounting tube from the side apply a tool to the fastening opening, so that it has the required torque can be screwed into the radiator.

Preferably form the housing and the mounting tube a circumferential groove in the area of the wall opening. It so it doesn't matter what angular position it is Mounting tube is ultimately mounted in the housing. The mounting tube can therefore only under the Consideration of sufficient attachment in the Radiators are screwed in. The hydration in the interior of the mounting tube remains secure.

It is particularly preferred that on the outside of the mounting tube in the area of the wall opening circumferential groove is arranged. A groove on the outside is much easier to manufacture than one Groove in the inner wall of a hole. This simplifies it the production.

Preferably, the mounting tube is in the connection the radiator opening is surrounded by a spacer sleeve. This spacer sleeve, also called an intermediate piece allows you to easily create a To adapt to different assembly situations. If the radiator, for whatever reason always mounted a little further away from the connection fitting this distance is easy by bridging that a slightly longer mounting tube and used a corresponding spacer sleeve. A further seal is required, namely in addition to the seal between the spacer and Housing a seal between the spacer sleeve and radiator. Since the mounting tube with a sufficient Moment to be screwed into the radiator can, there is a tight connection between the Spacer sleeve on the one hand and the housing and the radiator on the other hand, without major problems.

The fastening tube preferably has in the area of it Front end wall with an opening, which is closed by an insert. The opening can be used, for example, the radiator to empty.

However, an embodiment in which the use is designed as a functional part. you can simply by introducing such Functional part of the valve convey additional functions. Such a functional part can, for example be designed as a sensor for temperature and / or Flow rate to determine. The functional part can also designed as a radiator or heating cartridge be that is electrically operated. It is possible that the radiator heats even in times when the connected heating system is disabled is, for example on summer days when you only enough heat is needed to hand towels dry.

It is preferred that the use with an extension protrudes into the mounting tube, the Extension and the tube wall form a gap with each other. Such a configuration is particularly useful for Radiators are beneficial to a sufficient heat transfer area to provide.

The fastening tube preferably has an inner tube on, with an interior enclosed by the inner tube and a gap between the inner tube and the tube wall have separate connections to the supply openings. In this case there is only one radiator opening provided over both the inflow as well as the outflow of the heat transfer fluid to or done by the radiator. Such training recommends especially in single-pipe heating systems.

It is particularly preferred that a bypass channel in the housing is arranged. The bypass channel allows one Part of the heat transfer fluid to the next radiator continue to flow without the connection fitting connected radiator is run through. In order to can be used for multiple radiators that are the same Strand are connected, the desired temperature conditions to adjust.

There is preferably a removable plug in the bypass channel arranged. So the plug can be against another Plugs are replaced so that the same Connection fitting to different with little effort Positions of the radiators in a single-line heating system can be adjusted. The last radiator will completely block the bypass channel. With previous connection fittings one becomes the plug provided with a larger or a smaller throttle.

The bypass channel is preferably in the vicinity of a supply opening closed by a plug, which can be moved so far into the housing, that there is a connection between the supply opening and interrupts the mounting tube. The Sealing plug therefore has two functions. For one thing, allowed he access to the plug so that the bypass channel fully or partially released or blocked can be. On the other hand, it also serves one Connection of the radiator, more precisely the radiator opening, to the corresponding supply opening to prevent. If the other supply opening with Can be closed with the help of the radiator valve, then a complete shut-off of the entrance or Outlet allows. So you can supply the heat transfer fluid to a connected radiator stop completely so that the radiator can be removed can.

The supply opening is preferably above one Additional channel in connection with the bypass channel. So that is it is possible that in the situation described above, in the radiator connected to the connection fitting completely separated from the supply, subsequent Radiator still heat transfer fluid can receive in sufficient quantity.

The radiator opening and the fastening opening are preferably equally trained. So you can rotate the case if necessary and that or enter the mounting tubes through the radiator opening and let it come out through the mounting hole. This gives greater flexibility in assembly reached.

The housing is preferably of a housing cover surrounded by two opposite lid walls Has openings that surround the mounting tube. In some configurations, it can be aesthetic It may be desirable to replace the housing by one Cover the housing cover. For example, the Housing cover then have the same color as the Radiator, while the housing, which is usually made of Brass is made, has a different color. The attachment the housing cover can now be easily in that the mounting tube also the housing cover holds. All that is required is that the housing cover has openings that with the Fastening opening and the radiator opening in overlap can be brought. Then if the mounting tube inserted into the housing is also the Lid fixed to the housing. If spacers are used it can be advantageous if the spacers have the same color as the cover, possibly the same color as the Radiator. If it is possible in terms of load, can one even provide that the housing cover and the spacers from the same material, at least on hers respective surfaces are formed.

The housing cover is preferably transverse to the extension of the mounting tube pushed onto the housing. The mounting tube is then only required by a sliding movement of the housing cover on the housing to prevent. Otherwise, the housing cover fixed on the case by its shape.

It is particularly preferred that the housing cover U-shaped in cross section with two legs whose free ends are bent inwards and one Leave a gap, the width of the outer dimension of which Supply opening corresponds. With this configuration is characterized by the inward curved free ends of the Thigh an extensive fixation of the housing cover already done on the housing. The housing cover can only be moved laterally on the housing. This Sliding movement is blocked when the mounting tube is screwed into the housing.

Fig. 1

eine erste Ausführungsform einer Anschlußarmatur,

Fig. 2

eine zweite Ausführungsform einer Anschlußarmatur,

Fig. 3

eine dritte Ausführungsform einer Anschlußarmatur und

Fig. 4

einen Querschnitt durch eine Anschlußarmatur mit Abdeckung.

The invention is described below on the basis of preferred exemplary embodiments in conjunction with a drawing. Show here:

Fig. 1

a first embodiment of a connection fitting,

Fig. 2

a second embodiment of a connection fitting,

Fig. 3

a third embodiment of a connection fitting and

Fig. 4

a cross section through a connection fitting with cover.

Fig. 1 shows a connection fitting 1 for one only schematically illustrated radiator 2 with a housing 3, in which a valve 4 is screwed, which in itself known way the flow of a heat transfer fluid controls or regulates by the radiator 2.

The housing 3 has two supply openings 5, one of which can be seen in Fig. 1b. The supply opening 5 is formed in a pipe socket 6, which has an external thread 7 on which a union nut can be attached. On the pipe socket 6 can a supply line in a manner known per se, that is an inflow or an outflow line for heat transfer fluid be attached.

Furthermore, the housing 3 has two radiator openings 8 through which, as will be explained below, Heat transfer fluid from the housing 3 in the radiator 2 can reach. After all, every radiator opening 8 opposite a mounting opening 9 arranged, i.e. H. the radiator opening 8 and the associated one Fastening opening 9 are designed with the same axis. The radiator opening 8 and the mounting opening 9 can in the housing 3 in particular by a Through hole 10 may be formed so that both openings 8, 9 also have the same diameter. A further processing of the through hole 10 is then not mandatory. If necessary, at the two Ends of the through hole 10 still diameter increases 11, 12 may be provided, which are not shown in detail shown but known per se for recording of seals or other parts can.

The through hole 10 is via a channel 13 connected to the supply opening 5.

A fastening tube is now through the fastening opening 9 14 inserted through. The mounting tube 14 has a length greater than the thickness of the housing 3 is. The mounting tube 14 thus protrudes the radiator opening 8 out of the housing. The fastening tube 14 points out of the housing 3 protruding end on a threaded section 15, with which it is screwed into the radiator 2. Instead of the threaded section can also be a section provided with a different mounting geometry his. For example, the mounting tube 14 with form a snap or snap connection to the radiator. In this case, it is sufficient to use the mounting tube 14 with the required pressure in the radiator 2 push in.

As can be seen from Fig. 1, is between the radiator 2 and the housing 3 each have a spacer sleeve 16 arranged. With the help of the spacer sleeve 16 and the choice of a correspondingly long mounting tube 14 can be adjusted to a distance between reach the radiator 2 and the housing 3. If that Housing 3 mounted directly under the radiator 2 can then be on the spacer sleeves 16th dispense. In this case, the radiator 2 is located immediately on housing 3.

As mentioned above, the through hole 10 does not require any further processing. In particular, it is not necessary to form an internal thread here in which the mounting tube 14 can be screwed. The Rather, fastening takes place exclusively by that the mounting tube 14 is screwed into the radiator 2 is, so that the radiator 2 with a sufficient Clamping force against the spacer sleeve 16 and this in turn is pulled against the housing 3, so that sufficient here with relatively little effort Tightness can be achieved. As I said, it is also possible here still seals, for example in Form of O-rings to be arranged.

At the other end, the fastening tube has a circumferential one Flange 17 on that with a corresponding Force is present on the housing 3 and here also a sealing zone forms.

The fastening tube 14 has a wall opening in its wall 18 on that with a circumferential annular space 19th communicates. The annular space 19 is circumferential Groove on the outside of the mounting tube 14 formed. The wall opening 18 and the groove leading to the Training of the annular space 19 leads are in one Distance from the flange 17 arranged that the Annulus 19 is connected to the channel 13. In order to it is possible that the heat transfer fluid from the Supply opening 5 through the channel 13, the annulus 19, the wall opening 18 and the mounting tube 14 to can flow to the radiator 2 or vice versa.

Because the through hole is basically two of the same type Has openings, namely the radiator opening 8 and the mounting hole 9, you can see the mounting tubes of course from the other side into that Insert the housing 3, i.e. into the radiator openings 8 insert and exit through the mounting holes 9 to let. This gives great flexibility the alignment of the connection fitting 1 is reached.

Because of the annular space 19, the final angular position plays the mounting tube 14 in the housing 3 none Role. This angular position can with regard to Screw-in torque can be selected. The supply of the Radiator 2 is ensured in any case.

At the end opposite the threaded section 15 20 is the mounting tube through an end wall 21st closed, which has an opening 22 which by a Closure element 23 is closed. If you do that Closure element 23 removed, then you can, for example drain the heat transfer fluid from the radiator.

Furthermore, a torque application surface 24 is provided, For example, a hexagon socket on which a mechanic a tool can attach to the mounting tube 14th screw into the radiator 2. Because the torque application area 24 is in principle freely accessible, that is also axially, the handling of a tool is relative here simple.

Fig. 2 shows an embodiment in which the same parts are provided with the same reference numerals.

In this configuration, the left mounting tube 14 'modified. The modification affects the side that protrudes from the mounting opening 9. There is a Pipe extension 25 is provided, in which an electrical Radiator 26 is screwed with a feed line 27. The radiator 26 has an extension 28 which Fastening tube 14 'completely protrudes and even so is long that it protrudes into the radiator 2. Between the extension 28 and the mounting tube 14 ' an annular gap 29 is formed through which heat transfer fluid must flow to get into the radiator. The radiator 26 is arranged in the lead. The Annular gap 29 ensures that there is sufficient contact between the radiator 26 or its extension 28 and the heat transfer fluid.

The heater 26 forms a functional element, wherein one instead of a radiator 26 also other functional elements can use like temperature sensor and / or flow meter. You can connect the fitting 1 by simply replacing a mounting tube against another different functions implement as shown in FIG. 2.

Fig. 3 shows a third embodiment, namely how in Fig. 1 also, in part a in a schematic longitudinal sectional view and in part b in a schematic Cross-sectional view. The same parts are the same Provide reference numerals.

The embodiment shown in Fig. 3 relates a connection fitting for a so-called single-line heating, where a number of Hang radiators. The radiators are accordingly also in turn from the heat transfer medium flows through, with the help of a bypass line 30 ensures that even the last radiator still contains heat transfer fluid with a sufficiently high temperature receives.

The fastening tube 14 "has an inner tube 31, so that inside the inner ear 31 an interior 32 and between the inner tube 31 and the tube wall of the fastening tube 14 "an annular gap 33 is formed, that is two flow paths with different supply connections 5 communicating. Usually the interior 32 is used as a lead and the annular gap 33 used as return. The valve 4 is arranged in the return.

Also in the radiator, not shown, must of course corresponding flow paths for the heat transfer fluid be provided. The supply of interior 32 and annular gap 33 takes place via annular spaces 19, 19 'arranged in the housing 3' at different heights are.

A plug 34 is arranged in the bypass line 30, which either completely closes the bypass line 30 or a throttle, not shown, or Aperture can have to the flow of the heat transfer fluid between the two supply openings 5 throttle. In the area of the right supply opening 5 is the bypass line 30 from the housing 3 'led out. There is the bypass line through one Sealing plug 35 closed. The sealing plug 35 can be screwed into the housing 3 'as far as that a connection between the right supply opening 5 and the annular gap 33 is interrupted. If the valve 4 to interrupt the connection between the left supply opening 5 and the interior 32 is used, then the connected radiator completely separate from the heating system, so that the radiator can be dismantled, for example can.

To supply even in such a situation of other radiators to ensure that in same heating branch is arranged Auxiliary groove 36 is provided, the permeable bypass line 30 a flow of heat transfer fluid between the two supply openings 5 allowed.

4 shows an embodiment of a radiator valve, in which a housing cover 40 is pushed onto the housing 3 is. The housing cover 40 largely has one aesthetic function, i.e. it mediates the housing 3 a pleasing appearance. The housing cover has the same Length as the housing (in Fig. 4: Extent vertical to the drawing level). He can on one of the valves opposite side of an end wall (not shown in detail) have the corresponding end face of the Housing 3 with covers.

The housing cover 40 has two openings 41, 42, the congruent with the radiator opening 8 and the Fastening opening 9 are arranged. The two openings 41, 42 have a larger diameter, so that the spacer sleeve 16 and the flange 17 of the Fasten the mounting tube 14 into the openings 41, 42 can. If the openings 41, 42 are the same size as the outer circumference of the spacer sleeve 16 or the flange 17, then the housing cover 40 is practically immovable fixed on the housing 3.

The housing 40 is U-shaped in cross section. The free Ends 43, 44 of the two legs are bent inwards and leave a gap between them that is about corresponds to the outer circumference of the supply opening 5. If now the housing cover 40 on the housing 3 is pushed on (in the illustration in FIG. 4 perpendicular to the drawing plane), then it already keeps up a certain force on the case 3. This force can be reinforced by the fact that the two Leg of the U with a certain spring tension after are loaded inside. If the mounting tube 14th is used, there is also a possibility of moving blocked. The housing cover 40 then sits reliably on the housing 3.

Claims (19)

1. Connection device (1) for a radiator (2), with a housing (3, 3'), at least one radiator opening (8), to which a radiator can be connected, and at least one supply opening (5), to which a supply pipe can be connected, a fixing opening (9) being arranged opposite to each radiator opening (8), a fixing pipe (14, 14', 14") being led through said fixing opening (9), the fixing pipe projecting from the radiator opening with a fixing arrangement (15) and having, in the middle of the housing, a wall opening (18) in its pipe wall, which is connected with the supply opening (5), characterised in that the radiator opening (8) and the fixing opening (9) are formed by a through-bore (10) in the housing (3, 3'), said through-bore (10) being connected with the supply opening (5) via a channel (13), a valve (4) being located in the housing (3, 3'), said valve (4) controlling the flow of a heat carrying medium through the radiator (2).
2. Connection device according to claim 1, characterised in that the fixing arrangement has a threaded or snap-on connection geometry.
3. Connection device according to claim 1 or 2, characterised in that the fixing pipe (14, 14', 14") rests sealingly on the housing (3, 3') in the area of the fixing opening (9).
4. Connection device according to one of the claims 1 to 3, characterised in that the fixing pipe (14, 14', 14") has, on the side of the fixing opening (9), a rotary torque contact surface.
5. Connection device according to claim 4, characterised in that in the area of the wall opening (18), the housing (3, 3') and the fixing pipe (14, 14', 14") form a circumferential groove (19).
6. Connection device according to claim 5, characterised in that a circumferential groove is arranged on the outside of the fixing pipe (14, 14', 14") in the area of the wall opening (18).
7. Connection device according to one of the claims 1 to 6, characterised in that a distance bushing adjacent to the radiator opening (16) surrounds the fixing pipe (14, 14', 14").
8. Connection device according to one of the claims 1 to 7, characterised in that the fixing pipe (14, 14', 14") has, in the area of its front side, an end wall (21) with an opening (22), which is closed by an insert (23, 26).
9. Connection device according to claim 8, characterised in that the insert (26) is made as a function part.
10. Connection device according to claim 8 or 9, characterised in that an extension (28) of the insert (26) projects into the fixing pipe (14'), the extension (28) and the pipe wall (29) forming a gap with each other.
11. Connection device according to one of the claims 1 to 10, characterised in that the fixing pipe (14") has an inner pipe (31), an inner chamber (32) surrounded by the inner pipe (31) and a gap (33) between the inner pipe (31) and the pipe wall having separate connections to the supply openings (5).
12. Connection device according to one of the claims 1 to 11, characterised in that a bypass channel (30) is arranged in the housing.
13. Connection device according to claim 12, characterised in that a removable plug (34) is arranged in the bypass channel (30).
14. Connection device according to claim 12 or 13, characterised in that close to the supply opening (5) the bypass channel (30) is closed by a closing plug (35), which can be moved so far into the housing (3') that a connection between the supply opening (5) and the fixing pipe (14") is interrupted.
15. Connection device according to claim 14, characterised in that the supply opening (5) is connected with the bypass channel via an additional channel (36).
16. Connection device according to one of the claims 1 to 15, characterised in that the radiator opening (8) and the fixing opening (9) are made uniformly.
17. Connection device according to one of the claims 1 to 16, characterised in that the housing (3, 3') is surrounded by a housing cover (40) having, on two cover walls facing each other, openings (41, 42), which surround the fixing pipe (14).
18. Connection device according to claim 17, characterised in that the housing cover (40) is pushed onto the housing (3) transversely to the extension of the fixing pipe (14).
19. Connection device according to claim 17 or 18, characterised in that in a cross-section the housing cover (40) is made in a U-shape with two legs, whose free ends (43, 44) are bent inward leaving a free gap, whose width corresponds to the outer dimension of the supply opening (5).

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