DE7734717U1 - THERMOSTATIC MIXING VALVE - Google Patents

Description

* ι

second position can be exposed.

9. Mixing valve according to claim 8, characterized in that that the indicator element (67) is a colored tape.

The innovation relates to a sanitary thermostatic mixing valve and more particularly to mixer valves with a fixed housing having a rotary handle for adjusting the temperature, the stroke of which is limited in both directions, wherein a stopper normally the DRE \ 'hung in the one direction of the cross handle to a fraction of the Hubs limited and with devices that allow the handle to overcome this stop and allow it to continue its rotation. Such valves are used in particular in plumbing installations.

In general, the noarmal stroke of the cross handle corresponds to temperatures, which are smaller than a certain minimum, which is set at 39 °, for example. For certain special applications however, it may seem desirable to the user To have water available at a temperature above this maximum. This is made possible by the tap valves of the type mentioned above. α In these known tap valves, the normal setting range is exceeded by pressing in a ratchet lever. These well-known However, devices are not very useful in handling and have the particular disadvantage that they the user not effective "warn" if the temperature control knob is in a position corresponding to very warm water (over 30 ° in the beginning given example) as there is a risk of burns and some inconvenience when opening the valve. Through the innovation is now to be proposed a thermostatic sanitary mixing valve which enables the above-mentioned disadvantages to avoid ^ d = ku in particular either a temperature below the normal maximum or a temperature above

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this fourth allows the user to determine very easily when the handle is in a position outside the normal adjustment range.

For this purpose, a thermostatic sanitary mixer valve is being used according to the innovation proposed of the type mentioned, which is characterized in that these devices have an axially displaceable bearing enable the handle on the housing, passing the stop and continuing the rotation of the cross handle, by letting the latter pass from a first to a second axial position with respect to the housing.

The difference to the axial position of the cross handle is best visible when the cross handle is attached to one end of the housing and the first position and the second position of the cross handle each have a depressed and with respect to the housing are in an extended position.

The cock preferably comprises means for elastic loading of the cross handle in its first axial position. So if the cross handle the stop in the other direction against the normal Setting range overflows, it automatically returns to its first axial position, which increases the safety for the user.

To change the axial position of the cross handle according to an advantageous To make embodiment of the innovation even more visible, he puts when the cross handle from its first to the second position passes, a display element for this second position is free.

For example, embodiments of the innovation will now be explained in more detail with reference to the accompanying drawings. These show in

Fig. 1

a view of a mixing valve according to the innovation;

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Fig. 2 is a top plan view of the faucet of Fig. 1;

FIG. 3 is a view of that shown in FIG. 1

Hahns from the right;

Fig. 4 shows a view of a variant of this

Faucet;

Figure 5 is a top plan view of the faucet of Figure 4;

Fig. 6 is a partial axial section through the mixing valve according to the innovation in a first position the cross handle that adjusts the temperature;

Fig. 7 is a partial view similar to Fig. 6, after which

the cross handle of the mixing valve is in a different position;

Fig. 8 is a simplified illustration along the line

Line 8-8 of Fig. 7, the temperature adjustment cross handle as well as the "components fixed to it have been completely removed; and

FIG. 9 is a development of a detail in FIG. 8.

With the embodiment of FIGS. 1, 2 and 3, the stopcock according to the innovation comprises a cylindrical housing 1 from the horizontal axis XX and contains a suitable thermostatic mixing device known per se, which is not shown. Over part of its length, the housing 1 is defined by a corrugated rotatable ring 2 which is used to adjust the stopcock flow rate. At the left end (in the drawings) and at the top, the tap comprises a reversing push button 3, which makes it possible either to feed an inlet (deverseur) 4 arranged above it,

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which is intended for the "bath" enema, i.e. for filling the bathtub B or a tube 5 (Fig. 2), which is supported on a bone joint 6 and is intended to be a not shown Shower to dine. The bone joint 6 has the general shape of a hemisphere, which is attached to the end of the body of the cock and is from the same X-X axis as this one. On the one on the bone joint At the remote end 6, the faucet has a button or a thermostatic temperature setting handle 7. This handle is of the "bowling ball" type and comprises three cavities 8 which allow it to be operated by three fingers of the user.

If the cavity 8 is dispensed with, the handle 7 has the opposite shape to that 6, which has the bone joint at the outlet of the hose 5 forms. Between the corrugated adjusting ring 2 for the throughput and the temperature setting handle 7 comprises the housing a smooth cylindrical portion 9, which is adjacent to its upper Part of it carries a window 10 which displays numeric displays showing the temperature that the user is receiving has chosen while acting on the handle 7.

The housing of the cock 1, the bone joint 6 and the handle 7 have the same horizontal axis X-X, which is parallel to the upper edge B1 of the bath B. The articulated coupling 6 comprises a radial line 15 from the axis Z-Z perpendicular to the axis X-X, with which the outlet of the line 5 is connected.

Figures 1 and 2 "relate to a two-hole design of the tap, i. the case that the feed lines with hot water and cold water and the distance to each other are arranged and two different Lines 11 and 12 need to enter the housing 1. The hot water and cold water feed lines 11 and 12 are covered by a foot 13 which has the shape of a flat tube of the horizontal axis Y-Y parallel to X-X and connected at these ends to the vertical pipes 11 and 12 is. The foot 13 has a lateral extension 14 which is also formed from the teal of a flat horizontal tube and

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the connection between the hot water and cold water feed lines and the housing 1 of the tap covered. The latter is when the support 11-12-13-14 is attached to the edge B1 of the bath, regarding this margin.

The faucet shown in Figures 4 and 5 is in all respects analogous to that of FIGS. 1 and 2, but has only a single insertion hole. According to this embodiment, the feed lines are for hot water and cold water approximated to one another and can thus enforce the edge of the bath in a single line 11. According to this embodiment, an extension of the connection 14 is provided in the same way as the previous one. The foot 13a however, carries this extension, is carried by the line 11 and has smaller dimensions. The space required for this cock training so is less.

3 can be viewed as a right-hand view of both the faucet shown in FIGS. 1 and 2 and the faucet shown in FIGS. 4 and 5.

The head of the cock, i.e. the part which includes the actuators 2 and 7, will now be described with reference to FIG. For a more convenient description, the axis X-X shall be vertical, the handle 7 can be accepted at the head.

The fixed part 1a of the housing 1 is hermetically sealed by a cap or a socket 16 which is permanently screwed together a toroidal seal formation 17 screwed. This cap extends upwards in an inner hexahedral Sleeve 18 which carries external threads.

In part 1a of the tap housing there is a movable insert (cartridge) 19 arranged, which is displaceable along the axis X-X of the tap. The insert 19 includes inside a setting device for the proportion of tub water and cold water that is let into the housing, and in particular a thermo-therapeutic capsule whose active ι

- s

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ves element or piston in mechanical connection accordingly an axis of the tap with an axial rod or nut 20, which an axial extension 21 of the insert 19 is free interspersed.

The extension 21 of the insert 19 comprises a first hexahedral Part 22 which penetrates the bore of the sleeve 18 in such a way that the insert 19 is made non-rotatable. Still knows one cylindrical part 23 of reduced diameter, and then a fluted part 24 which ends in a groove 25, if the Insert 19 slides along the axis of the tap, the seal O between its upper part and the interior of the sleeve 16 is made a toroidal seal 26 supported by a groove in the insert 19.

The internal thread 27 of an intermediate element 28 is screwed onto the sleeve 18. This intermediate element comprises a lateral Wall of the shape of a tower with four prongs as shown at 29 and has a collar 30 perpendicular to the axis of the tap, against the translation-proof thanks to two washers 31> 31a of the part 23 of the extension 21 of the insert 19 is fixed. The intermediate element 28 is controlled by the throughput control element 2 thanks to profiles 32 of the inner surface, which are complementary to the α prongs 29, driven in rotation. Between the intermediate element 28 and the throughput control element 2, a ring 33 made of a rubber-like material is interposed, which is used to To compensate for play between the two parts.

Throughput control element 2 and intermediate element 28 are also fixed with respect to one another each other translator! sch thanks to a shoulder 34 of a component 35 fixed, in the scope of which the window 10 is recessed; a friction reducing ring 36 separates the shoulder 34 from an inner collar 2a of the ring 2. The shoulder 34 is extended inwardly towards the head of the cock by a ring 37, which is a Carries internal thread 38 and at its base a cylindrical an- set 39, which is firmly attached to part 24 of the extension 21 of the

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Set 19 is made in translation by the ring 31 and by a ring 40 and rotatably by the fact that flutes, the complementary to those of the part 24 are provided.

The arrangement formed by the part 35 and the insert 19 is therefore non-rotatable with respect to the tap housing, but can also move translationally in this regard if the ring is actuated against the sleeve 18 thanks to the screw connection of the element 25.

The ring 37 includes an extension 41 which has a radial shoulder 42 on the one hand and an annular groove 43 on the other hand. The latter is described in more detail below.

The rod 20 is actually a screw blocked in an internal thread 44 of a component 45, the The lower part 46 of larger diameter has a thread 47 which, with the internal thread 38, forms a bolt-nut system. the Screw 20 is with respect to component 45 via a second blocking screw 48 when the tap is installed and ready to work. The second screw 48 itself is blocked and remains After calibration, it is arranged on the head by means of an adhesive point (not shown) and penetrates the internal thread 44.

The upper part 49 of the part 45 has the shape of a hexagon and can be inside a corresponding bore 50 of a pipe 51 slide. The lower part of this tube 51 has a collar 52, which is translationally but not rotationally fixed with part 37, below Interposition of sealing arrangement and friction-reducing arrangements 54 is set by means of a Seeger ring 55, which presses against shoulder 42. The side wall of the upper part of the tube 51 has fluting 56 on the outside and at the end a groove receiving a Seeger ring 57.

In the upper part of the component 35, a ring 58 is mounted, which carries the temperature indicators on m - its outer side surface

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during the operation of the thermostatic display and adjustment by operating the handle 7 in the fixed window 10 in the bottom appear descriptive. The ring 58 is interposed in translation above the groove by a circlip 59 a sealing formation 60 and has at its lower end an inner collar 51 in which a recess 62 is provided.

The rotation of the ring 58 is caused by an arrangement which is formed by the handle 7, a capsule 65 and a bowl shaped part 64 (see also Fig. 7).

The shell-shaped part 64 has an outer wall 65 which is tight against the interior of the ring 58 thanks to the interposition a gasket 66 is attached; the height is greater than that of this ring, in such a way that the cup-shaped part 64 normally (FIG. 6) rests against the upper end of the part 35. The end part of the shell-shaped part 64 carries a colored ring band 67. An inner collar 64a of the shell-shaped part 64 carries a sleeve 68, the flutes 69 of which cooperate with those 56 of the tube 51. A coil spring 70 is supported on the one hand by the Seeger ring 57 held washer 71 and on the other hand against the covenant 64a from. The capsule-shaped part 73 is fixed to the handle 7 by permanent screwing by means of three screws 72 and of the shell-shaped part 64 by permanent direct screwing made into a bore 73 thereof. The capsule-shaped part 63 is preferably of a metallic type, so that its final Fixing with the cup-like part 64 is better. The arrangement 7-63-64 behaves like a single, one-piece component.

8 and 9 show the groove provided by component 35. This groove comprises two parts of different heights and extends over almost a complete revolution. The groove has about half the circumference of a depth h and ^c iber the other half of a depth corresponding to three times H h. Slides in this groove

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an axially directed pin 74 which is screwed and glued against the base of the outer wall of the shell-shaped part 64.
This pin penetrates the groove 62 and stands under the collar 61 | above a height that is greater than h and less than H, if "

t, the handle is in the inserted position shown in FIG

is located.

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The path of the handle 7 is thus limited in this position,
that the pin 74 in abutment either against the vertical the two _; the parts of the groove 43 separating shoulder 75 (upper limit) or
towards the end 76 of the deeper part of this groove (lower limit) ^ comes. This normal setting range (position 74a of the pin in 1, FIGS. 8, 9 and 6) corresponds to two specific limit temperatures, which were obtained, for example, by calibrating the screw 19: ι Delivery of hot water at a temperature below 39 ^° C.

I To display a temperature above this value in window 10,

7, the handle must be raised by the spring 70 zusammenge- \

is pressed. As a result, the pin 74 comes into abutment against the \

Bottom of the less deep part of the groove 43 (position 74b of the pin i-

in Figs. 8 and 9 and 7). When the handle 7 is in the extended \

is driven position, the pin 74 can be up to the other

Move the end wall 77 of the groove 43 (upper absolute limit). In §

the other direction, when the pin is against the shoulder 75 f

shifts, it automatically falls back into zone 75-76 and gives ','

this shoulder is free thanks to the presence of the spring 70, namely I.

regardless of the real position of the X-X axis. I.

The total travel of the pin 74 corresponds approximately between the walls | 76 and 77 at an angle of 330 °. The two areas 75-76 üaö 75-77 c

have approximately the same angular extent which is equal to half
the entire angular extension, that is 165 °.

If the handle 7 is in the extended position (Fig. 7),
so the colored band 67 of the cup-shaped body 64 is above
of the component 35. The user can thus easily monitor and

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effectively indicates that the temperature display corresponds to the reaching of a very hot temperature (above 39 °). This characteristic creates security during use. The simple fact that the handle is in the extended position is Already clearly visible, but the band 67 supports this visual impression considerably.

As FIGS. 6 and 7 clearly show, the handle is from one Axial position in the other over; the displacement is externally against the inner surface of the ring 58 and internally by cooperation of the Channelings 69 and 56 controlled.

The working method of the cock described is as follows: 1.) Volume control

This quantity control is done by clicking on the fluted throughput control unit 2 acts; this can be done regardless of the display position of the handle 7, and just as well if this is in the retracted as well as the extended position.

If the quantity control element 2 is rotated, then its prongs 29 of the intermediate element 28 take the inner profile 32 forcibly grasping it Element 28 in rotation with. Since the cap 16 on the fixed housing 1a of the Hahns is both rotationally fixed and translationally fixed and the insert 20 (cartridge) can only be moved in a translatory manner, ensures the rotation; of Element 28 thanks to the internal thread 27 and the washers 31, 31a for the displacement of the element 28 on the insert 19 upwards and downwards and thus for a displacement of the entirety of the head of the rooster. At the level of the cartridge 19 containing the valve body transfers the postponement of this mission as opening or Closing the outlet opening for the mixed water, as in the French patent 73.29442. The mixed water is directed against the bath inlet or against the bone joint 6, the hose 5 and the shower in accordance with the control organ 3.

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2. Display and setting of the temperature:

a) normal range 75-76 of FIGS. 8 and 9 and FIG. 6; Water temperature below 39 °; Handle 7 pressed in.

The temperature is displayed when the handle 7 is turned by three fingers are inserted into the recesses 8. When the handle rotates, it rotates the cup-shaped body 64 takes. Thanks to the fluting 69, which cooperate with those of the tube 51, this rotates the tube as a whole and thus the component 45 with. The rotation of the latter translates the rod or screw 20 in one way or the other Direction, a translation that affects the interior of the insert 19 is transferred and for a change in the proportions of the supplied hot water and cold water with a corresponding reaction of the thermosensitive Element comprising the insert, as described in French patent 73.29442. Actually The temperature indicated by the handle 7, which can be read from the outside through the window 10, corresponds exactly to the temperature of the water supplied if the calibration procedure carried out on screws 20 and 48 has been carried out correctly.

b) upper region 75-77 of Figures 8 and 9 and 7; Water temperature over 39 °; Handle removed from the solid body 1a.

In the previous case, the rotation of the bowl-shaped body 64 limited by the displacement of the pin 74 between the stops 75 and 76 of FIGS. 8 and 9. In the extended position the pin 74 is in the part of the groove 43 which is the area 75-77 corresponds. In this area, a temperature is displayed in the same way as above.

When the pin 74 moves against the wall 77, the increases Temperature of the water. The maximum temperature corresponds to the maximum, | that the source of warm sanitary water can provide; he falls himself- | active in the range of normal temperature (below 39 °), i.e.

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in the range 75-76 thanks to the return spring 70 back. This training is very beneficial:

A single organ (the handle 7) must be manipulated, mn the Display and set the temperature and order from the warm water (below 39 °) to switch to very warm water (above 39 °), with automatic return to the first position, what for the user is very simple;

- the sudden axial displacement of the handle to the transition from one area to the other is highly visible and exposes the user attentive;

the colored band 6 7 serves as an additional indicator for the user, before he even acts on the quantity control organ.

In the above, of course, the value 39 ° was only given as an example called; it could just as easily be 42 or 45 degrees, or any other desired value. The same applies to the angular extensions of the two areas of the groove 43.

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Claims (8)

Protection claims 1. Thermostatic mixing valve with a fixed housing that carries a rotary handle for setting the temperature, its stroke is limited in both directions, with a stop normally allowing rotation of the handle in one direction to break limited part of this stroke and with devices that allow the handle to overflow di sen stop and allow him to rotate continue, characterized in that these devices have an axially displaceable mounting of the handle (7) on the housing (1a), wherein to pass the stop (75) and to continue the rotation of the handle (7) of the Handle from a first to a second axial position, based on - 2 - 7734717 16.0178 C · the housing (1,) is designed to be convertible. 2. Mixing valve according to claim 1, wherein the handle is at one end of the housing is attached, characterized in that that the first position and the second position of the handle (7) each have a retracted and an extended position, are based on the housing (la). 3. Mixing valve according to one of claims 1 or 2, characterized by means (70) for elastic loading of the handle (7) in its first Axialstel ^ jng. 4. Mixing valve according to one of claims 1 to 3 _f, characterized in that the handle (7) carries on its periphery a pin (74) which is located opposite the stop (75) in the first position of the handle. 5. Mixing valve according to claim 4 and 3, characterized in that in the second position of the handle (7) of the Pin (76) rests on a circular bearing or a circular shoulder, which is formed starting from a this stop Shoulder (75) extends. 6. Mixing valve according to claim 5, characterized in that the pin (74) is slidable in a circular groove (43) limited at its end », the bottom of which is formed by two successive bearings or graduations of different axial height (h _r H), which are separated from one another by this shoulder (75). 7. Mixing valve according to one of claims 4 to 6, characterized in that the pin (74) is directed axially. 8. Mixing valve according to one of claims 1 to 7, characterized by an indicator element (67) for this second position, which when the handle (6) passes from the first to the 7734717 02/18/78