KR100248698B1 - Thermostat regulated sanitary mixing tap - Google Patents

Abstract

The present invention relates to a device for radially enclosing the cold water hot water inlet (1), the hot water hot water inlet (2) and the mixed water outlet, and the control and adjustment piston (6), in particular temperature control and adjustment.                 The block 5, the temperature dependent adjusting element 7 in conjunction with the control and regulating piston 6, the actuation lever and the control and regulating piston 6 towards the adjusting element 7.                 A deflecting restoring spring element 35 and a cold water annular chamber 15 and an adjacent hot water annular chamber 16, with the control and adjustment piston 6 for temperature control.                 Thermostat which can be set for the temperature control and adjustment block 5 to an initial position for determining the temperature and can be controlled by the adjustment element 7 for temperature adjustment                 A controlled hygienic mixing tap. The mixed water temperature is affected by inadvertent leaks from the cold water annular chamber 15 and / or the hot water annular chamber 16.                 One between the temperature control and adjustment block 5 and the control and adjustment piston 6 to prevent and to ensure control and adjustment as unaffected as possible.                 The above annular sealing film 21 is provided, and the sealing film 21 is between the cold water annular chamber 15 and the hot water annular chamber 16 or the cold water annular chamber 15 and / or hot water.                 The annular chamber 16 is sealed from the outside.

Description

            Thermostat hygienic mixing tap         

1 and 2 are cross-sectional views showing the main functional parts of the first and second embodiments of the thermostat controlled hygienic mixing tap according to the present invention.

3 is a perspective view of the control sleeve of the hygienic mixing tab shown in FIGS. 1 and 2.

4 and 5 are cross-sectional views showing the main functional parts of the third and fourth embodiments of the thermostat controlled hygienic mixing tap according to the present invention.

6 is a cutaway view of another embodiment of a mixing tap or thermostat valve according to the present invention.

7 is a perspective view of the restoring spring element as shown in FIG.

8 and 9 are partially broken top views (Fig. 8) of another restoring spring element and cross-sectional views (Fig. 9) along cut line IX-IX of Fig. 8;

The hygienic mixing taps, shown only partially in FIGS. 1,2,4 and 5, respectively, carry out so-called individual thermostats, ie, quantity control on the one hand at the point of use and                 A thermostat is used to perform temperature control and adjustment.

The thermostat controlled hygienic mixing tap, shown only partially in FIGS. 1, 2, 4, and 5 degrees, has a cold water hot water inlet (1), a hot water hot water inlet (2) and mixed water not shown, respectively.                 The tapping door is attached. The valve seat disc (3) fixed to the cold water hot water inlet (1) and the hot water hot water inlet (2) when viewed in the flow direction, the valve seat for quantity control                 A valve disc 4 which can be displaced on the disc 3 and a temperature control and adjustment block 5 interlocked with the valve disc 4 for quantity control and adjustment are provided.                 In addition, the sanitary mixing tap according to the present invention is provided with a control and adjustment piston 6 installed in the temperature control and adjustment block 5, and the temperature control and adjustment.                 The block 5 is formed as a device that radially surrounds the control and adjustment piston 6. The mixing tap according to the invention also comprises a control and adjustment piston 6 and                 The control lever 8 shown in dashed-dotted line in FIG. 4 connected to the interlocking adjustment element 7, the operation lever not shown and the operation lever not shown is shown in FIG.                 Is attached.

As shown in FIGS. 1, 2 and 4, the valve seat disc 3 has a cold water intake opening 9 connected to the cold water hot water inlet 1 and hot water connected to the hot water hot water inlet 2.                 The water intake opening 10 is provided. As shown in Figs. 1, 2, 4 and 5, the valve disc 4 has a cold water inlet opening 9 of the valve seat disc 3 and                 Passing openings 11 and 12 communicating with the hot water intake opening 10 are formed, respectively. The temperature control and adjustment block 5 passes through the valve disc 4                 The cold water and hot water inflow openings 13 and 14, the cold water annular chamber 15, and the hot water annular chamber 16 communicating with the openings 11 and 12 are provided. Control and adjustment                 The piston 6 can be set with respect to the temperature control and adjustment block 5 to an initial position that determines the temperature for temperature control and to the adjustment element 7 for temperature adjustment.                 Can be controlled.

As shown in FIGS. 1, 2, 4 and 5, the temperature and adjustment block 5 has a control and stop flange 17 between the cold water annular chamber 15 and the hot water annular chamber 16.                 Equipped. The control and adjustment piston 6 is formed in a sleeve shape and has a hot water side spaced apart from the cold water side leading edge 18 and the cold water side leading edge 18.                 The leading edge 19 is provided. The control and stop flange 17 is smaller than the distance A between the cold water side leading edge 18 and the hot water side leading edge 19 (19).                 It has a width B and protrudes into the intervening space between the cold water side leading edge 18 and the warm water side leading edge 19.

Instead of the above-described embodiment with control and stop flanges, the hygienic mixing tap without the control and stop flanges between the cold and hot water annular chambers is also found.                 The invention can be applied. In this embodiment, too, the control and regulating piston is not necessary unconditionally, but is preferably formed in the form of a sleeve. this                 In an embodiment the spacing between the cold water side leading edge and the hot water side leading edge is greater than the longitudinal extension of the control and adjustment piston so that the control and adjustment piston is mixed with water.                 To adjust the temperature, the inflow rates for cold and hot water are reversed on the cross section, moving between the two leading edges. Embodiments of this type are mentioned at the outset.                 Known from DE-A-36 12 988. In yet another embodiment, the spacing between the cold water side leading edge and the hot water side leading edge is controlled and adjusted piston longitudinally.                 Smaller than the extension, so that the control and adjustment piston changes the cross section of the inlet clearance for cold water and hot water in the opposite direction for the adjustment of the mixed water temperature                 It will move out of both leading edges and reciprocate.

In both cases, the cold water annular chamber and the hot water annular chamber are each not sealed from the outside, as will be explained in detail in the embodiment shown below, but also in the following.                 Sealing is performed between the annular chambers in the form and manner described in detail.

In the embodiment of the sanitary mixing tap according to the invention shown in FIG. 1, the temperature control and adjustment block 5 consists of copper or brass, in particular brass. With this                 In contrast, in the embodiment according to the second, fourth and fifth degrees, the temperature control and adjustment block 5 is made of plastic. Control and stop when using plastic                 The flange 17 has a glove 20 of a hard metal, such as copper or brass, in particular brass. However, the temperature of the embodiment shown in the second, fourth, and fifth degrees                 The control and adjustment block 5 may be entirely composed of copper or brass, in particular brass, which may be the case in particular in the embodiments shown in FIGS. 4 and 5.                 You should know that

The control and adjustment piston 6 should be able to be displaced relatively easily within the temperature control and adjustment block 5 so that it is already responsive to minimal temperature fluctuations.                 Therefore, the inner diameter corresponding to the control and adjustment piston 6 of the temperature control and adjustment block 5 is about larger than the outer diameter of the control and adjustment piston 6, suitably                 About 0.3mm larger.

In the embodiment according to FIG. 1 and FIG. 2, the temperature control and adjustment block 5 and the temperature control and adjustment block 5 are sealed to seal the cold water annular chamber 15 and the adjacent hot water annular chamber 16 from the outside, respectively.                 An annular sealing film 21 is disposed between the control and adjustment piston 6, respectively. The sealing film 21 seals the cold water annular chamber 15 and the hot water annular chamber 16 from the outside.                 In addition to serving, it also serves to guide the control and regulating piston 6 within the temperature control and regulating block 5. Each sealing film 21 has its outer side                 It is fixed in the outer groove 22a by the edge. The outer groove 22a is formed in the temperature control and adjustment block 5, while the inner groove 22b is controlled and adjusted.                 It is formed in the piston 6, which can be seen from the detailed view shown enlarged in FIG. 1. In the embodiment shown in FIG. 1, the outer groove 22a and the inner side                 The grooves 22b are each formed in a V-shape and have sealing film insertion portions 22c at the bottom of the grooves, respectively. The sealing film inserting portion 22c opens the sealing film 21 with the grooves 22a,                 22b) to be fixed or held in place. Formation of the sealing film inserting portion 22c is omitted in the embodiment according to FIG. In this embodiment                 The sealing film 21 is pressed against the bottom of the outer groove 22a and the inner groove 22b and sealed in this manner. Saw 0 type ring used in the prior art                 By replacing with the sealing film 21 according to the invention, it is possible to adjust temperature without being affected by friction with excellent sealing. That is, the outflowing mixed water                 It does not receive temperature fluctuation.

Both without the control and stop flanges installed, the leading edge is outside the longitudinal extension of the control and adjustment piston or in the region of the control and adjustment piston.                 In the embodiment not shown, the cold water annular chamber and the hot water annular chamber are sealed to each other by the sealing film according to the present invention. In this case, only one sealing film is needed.                 Correspondingly, only one outer groove is installed in the temperature control and adjustment block and only one inner groove is installed in the control and adjustment piston to fix the sealing membrane. this                 In this case, the sealing film prevents the cold water and the hot water from each annular chamber from mixing undesirably.

Further, in a suitable embodiment of the sanitary mixing tap according to the invention shown in FIG. 1, the control and adjustment piston 6 is connected to the first piston part 23 and the second piston part 24.                 It is suitable to be configured. The first piston portion 23 has a connecting portion 25 which protrudes into the second piston portion 24 and has a male threaded portion 26.                 The piston part 24 has a female thread part 27, and both piston parts 23 and 24 are screwed together. Both piston parts 23, 24 are copper or brass, in particular                 Consists of brass.

In the embodiment of the hygienic mixing tap according to the invention shown in FIGS. 2, 4 and 5, the control and adjustment piston 6 has a first piston part 23, a second piston part 24.                 And an adapter 28 for coupling both piston parts 23 and 24. In detail, the adapter 28 is formed by the snap connection 29 to one side.                 It is connected to the first piston portion 23 and has the male thread portion 30 on the other side, protrudes into the second piston portion 24 as the male thread portion 30, and the second piston portion 24                 It is preferable that both the piston parts 23 and 24 are threaded together with the female thread part 31. In this embodiment both pistons 23, 24 are copper or brass,                 In particular, it is made of brass, and the adapter 28 is made of plastic. However, especially in the arrangement of the invention shown in FIGS. 4 and 5, the control and adjustment piston is                 It does not matter whether it has an adapter with a snap connection or a screwed connection.

As mentioned above, in the embodiment of the hygienic mixing tap according to the invention shown in the first, second, fourth and fifth degrees the amount of the control and adjustment piston 6 is                 The piston parts 23, 24 are composed of copper or brass, in particular brass. However, the control and adjustment piston is entirely made of plastic, for example cold water side leading edge                 And non-illustrated embodiments with armored parts of copper or brass, in particular brass, only in areas of especially wear, such as the leading edge of the hot water side.                 have.

In addition, in the embodiment of the hygienic mixing tap according to the invention shown in the first, second, fourth and fifth degrees, the control and adjustment piston 6 is the temperature of the control and adjustment piston 6.                 Depending on the relative position to the control and adjustment block 5, it is in communication with the cold water annular chamber 15 and / or the hot water annular chamber 16 and into the interior space of the control and adjustment piston 6.                 It is suitable to provide the passage opening 32 which passes. In this case, the inner spaces of the control and adjustment piston 6 are respectively shown only in FIG. 5 in particular in contact with the inner wall.                 A meshed sleeve 33 can be installed, and the adjustment element 7 can be arranged at least partially inside the control and adjustment piston 6, ie in its interior space.                 have.

3 shows a control case 34 at least partially covering the temperature control and adjustment block 5 of the embodiment according to FIGS. 1 and 2. 1 and                 In the embodiment according to FIG. 2, the control and adjustment piston 6 is fitted and fixed in the control case 34. However, the adjustment element 7 is fitted in the control case 34                 Fixed is common to all embodiments. In the embodiment according to FIGS. 1 and 2, the control and adjustment piston 6 is controlled by the control and adjustment element 35.                 Supported by the first support flange 34a of the case 34 and the adjustment element 7 is supported by the second support flange 34b of the control case 34 and with a restoring spring                 The element 34 is formed of a coil compression spring, and one end of the restoring spring element 35 of the control and adjustment piston 6 controls and restrains the restoring spring element 35.                 It is suitable to have an annular groove 36 which receives an end facing towards the adjusting piston 6.

The embodiment according to FIGS. 4 and 5 differs from the embodiment according to FIGS. 1 and 2 in that no restoring spring element formed as a coil compression spring is installed.                 different. Correspondingly, the control and adjustment piston 6 also does not have an annular groove. In the embodiment according to FIG. 4 one restoring spring element 37 is used                 In the embodiment according to FIG. 5 two restoring spring elements 37 are used, each restoring spring element 37 having a temperature control and adjustment block 5 on one side,                 In other words, it is supported by the inner casing and the control and adjustment piston 6 on the other side, ie by its outer casing. This is the coil compression as shown in FIGS. 1 and 2                 It means that the restoring spring element formed as a spring can be omitted completely.

To control or adjust the restoring spring element 37 on one side to the temperature control and adjustment block 5 and on the other side to the control and adjustment piston 6.                 The stopper 38a of the form enclosed in the block 5 is provided, while the stopper 38b of the form enclosed in the control and adjustment piston 6 is provided. This configuration is                 It is the structure applied with respect to the at least 1st piston part 23. In any case, in the embodiment shown in FIGS. 4 and 5 the restoring spring element 37 is directed to one side.                 The fact that it naturally seals between the temperature control and adjustment block 5 and the control and adjustment piston 6 to the other side, i.e. no additional seal is required at this place.                 It is essential. Of course, with the restoring spring element 37 according to the invention, the sealing film 21 is subjected to a temperature as in the embodiment according to FIGS.                 It should be appreciated that it can be installed between the control and adjustment block 5 and the control and adjustment piston 6. However, this is not necessary.

The return spring element 37 is formed as a disc spring. In addition, the restoring spring element 37 is at least small regardless of the position of the control and adjustment piston 6.                 It is proposed to act as a deflection force between the temperature control and adjustment block 5 and the control and adjustment piston 6. This is controlled by the cold water side leading edge 18                 When it hits the stop flange 17, the spontaneously restoring spring element 37 has a small deflection force and thus spring action against the stoppers 38a and 38b.                 I mean. Thereby, the restoring spring element 37 controls the control and adjustment piston 6 and the temperature control no matter where the control and adjustment piston 6 is located.                 And arranged in a sealed posture to the adjustment block 5. The enclosed edge of the restoring spring element 37 is in the area of the stopper 38a, 38b.                 Since it moves along the sliding surface when applying and releasing a load, it forms at least the sliding surface of the temperature control and adjustment block 5 and the control and adjustment piston 6.                 The area should consist of a cured material.

For this purpose, the temperature control and adjustment block 5 and the control and adjustment piston 6 are made entirely of copper or brass, in particular brass or when plastic is used.                 It may be provided with a fixture of the corresponding material forming the stopper (38a, 38b) and the sliding surface. In the latter case, illustration is omitted.

Since the coil compression springs are not used in the embodiments according to FIGS. 4 and 5, the space requirements typically required for this and the support flanges of the control case are required.                 Space demand can be completely reduced. This naturally means that the specification error of the hygienic mixing tap according to the invention can be significantly reduced. At the same time, this                 In the embodiment according to FIGS. 4 and 5 an annular groove in the control and adjustment piston 16 is not necessary and is also used in the embodiment according to FIGS. 4 and 5.                 The control case 34 does not correspond to the control case 34 in the embodiment according to FIGS. 1 and 2 as far as the configuration of the first support flange 34a is concerned.                 Means that. The control case 34 may be provided with cutouts or correspondingly narrower instead of the configuration described above.

In the embodiment according to FIGS. 4 and 5, in the embodiment according to FIG. 4, the inner groove 22a and the inner groove 22b having the sealing film 21 in the second piston part 24 are formed.                 On the other hand, in the embodiment according to FIG. 5 also in that the restoring spring element 37 is used again, as in the first piston part 23, for sealing.                 Different. In the embodiment according to FIG. 4, the sealing film 21 is arranged in the region of the first piston portion 23 and the restoring spring element 37 is in the region of the second piston portion 24.                 It should be appreciated that, in this case, of course, the configuration of the corresponding grooves and stops is necessary.

The use of a restoring spring element 37 formed as a disc spring is suitably slightly larger, whose inner diameter is approximately coincident with the restoring spring element 37.                 The opening 5b is installed in the temperature control and adjustment block 5 in the region of the first piston portion 23 until the restoring spring element 37 strikes the stopper 38a.                 It is assumed that it can be simply inserted into the opening 5b. Further, the first following the stopper 38b, ie towards the second piston 24                 Care should be taken to suitably be smaller so that the maximum outer diameter of the piston portion 23 approximately coincides with the inner diameter of the restoring spring element 37. Stopper 38a,                 The height of 38b) is the maximum elasticity of the clearance width or restoring spring element 37 between the cold water side leading edge 18 and the hot water side leading edge 19 and the control and stop flange 17.                 To be on course.

The restoring spring element 37 is snapped onto the adapter 28 with the first piston part 23 and snapped to achieve the sealing action described above.                 While under constant deflection force, the restoring spring element 37 for the second piston part 24 is only later positioned. This is the second                 An annular clearance is formed between the piston portion 24 and the temperature control and adjustment block 5 and an unloaded restoring spring element 37 can be housed therein                 It means that the standard error is selected so that the stopper 38c in the second piston 24 can be supported under the load. Temperature control and adjustment                 In order to ensure the stopping action at block 5, two solutions are presented, both of which are shown in FIG. 5. In the upper half of FIG. 5, a stopper 38d is formed.                 Inner race with male thread is selected, and the corresponding female thread is installed in the temperature control and adjustment block 5 so that the inner race can be fixed.                 It can be screwed in and the restoring spring element 37 can be deflected correspondingly. In the lower half of Fig. 5, a stopper 38d is formed as an elastic lock washer.                 It is housed in a corresponding groove in the temperature control and adjustment block 5.

It is also possible to find an enclosed installation 38e which is pushed onto the control and adjustment piston 6 from the fifth road and suitably fixed to the piston 6.                 This fixture 38e consists of a hardened material and has a sliding surface for the restoring spring element 37 as well as the stopper 38c. Stopper and / or sliding surface                 Corresponding fixtures to be formed may also be installed in the region of the stoppers 38a, 38b, 38c, and their illustrations are omitted.

In the non-illustrated embodiment, in which the stopper is not formed as an inner race or elastic lock washer and must be fixedly formed in the temperature control and adjustment block 5, the restoring spring                 The element 37 is inserted into the temperature control and adjustment block 5 through the opening. In this case, the rest of the stopper (and stop flange) must be an elastic lock washer or screw                 It can be formed by a connection.

A type of stopper is installed in the control and adjustment piston for the disc springs formed as respective restoring spring elements presented from the above embodiments and a type of stopper                 Must be installed in the temperature control and adjustment block. At this time, for structural reasons the stopper on the control and adjustment piston is on the outside, i.e. to the control and stop flange.                 In the area of the piston part farther away from the stopper on the temperature control and adjustment block on the inside, ie close to the control and stop flange.                 It is easier to place the disc spring.

It is clear that the features and advantages described above are also valid for the above-described embodiments and thermostat valves, not shown, which do not have control and stop flanges, thus avoiding repetition.                 Special discussion may be omitted. However, a device for radially enclosing the control and regulating piston in the thermostat valve is, for example, a thermostat housing.                 It should be noted that it may be formed by itself or its intercepts. The concept "device" controls and adjusts as far as the thermostat valve as well as the hygienic mixing tap                 It should be understood as a higher concept for each "object" surrounding the piston.

Using only restoring spring elements 37 which at the same time seal, ie only restoring spring elements 37, omission of other unexpected seals                 The advantage of this embodiment of this type is shown in FIG. 5 by selecting an appropriate material, for example spring steel, for the restoring spring element 37 and curing it.                 When the sliding surface and the stopper are used, the sealing site according to the present invention theoretically has a permanent durability life. However, structural costs, in particular                 The cost for implementing the stopper 38d is somewhat less than the configuration of the inner groove 22a and the outer groove 22b with the sealing film 21 inserted as shown in FIG.                 Higher.

As shown in FIGS. 2, 4, and 5 or as shown, the end of the control case 34 and the end facing towards the second support flange 34b of the control case 34 of the adjustment element 7.                 Between the second support flange 34b, the end portion of the control case 34 of the adjustment element 7 toward the second support flange 34b receives a spring load to control it.                 A remaining stroke unit 39 is provided which allows movement against the second support flange 34b of the case 34. In detail, tribal administration                 The unit 39 has an outer sleeve 40 connected to the second support flange 34b of the control case 34, an inner side with a support surface 41 for the adjustment element 7.                 With the remaining stroke spring 45 which is installed between the inner flange 43 of the sleeve 42 and the outer sleeve 40 and the outer flange 44 of the inner sleeve 42.                 It is composed. In addition, the second support flange 34b of the control case 34 has a threaded hole 46 which serves to house the remaining stroke unit 39 and remains.                 The outer sleeve 40 of the stroke unit 39 includes a male thread portion 47, and is controlled by the male thread portion 47 of the outer sleeve 40 of the remaining stroke unit 39.                 It is screwed into the threaded hole 46 of the second support flange 34b of the case 34.

The outer sleeve 40 and the inner sleeve 42 of the remaining stroke unit 39 described above are suitably made of plastic. Also, although not shown in detail,                 The outer sleeve 40 of the remaining stroke unit 39 may have mooring protrusions projecting inwardly and the inner sleeve 42 has a spring that divides its outer flange.                 The slit may be provided.

In the sanitary mixing tap according to the invention shown in the first, second, fourth and fifth degrees, the control case 34 is also on the one hand, together with the temperature control and adjustment block 5, on the other hand.                 On the one hand it is suitable that it can be displaced relative to the temperature control and adjustment block 5. For this purpose, the temperature control and adjustment block 5 is controlled                 A head 48, the eccentric 49 is rotatably supported on the control head 48, and the control case 34 is provided with a control cutout 50.                 The control case 34 is controlled by the interaction of the eccentric 49 and the control cutout 50, on the one hand, with the temperature control and adjustment block 5, and on the other hand.                 And relative to the adjustment block 5. The eccentric 49 controls the engagement of the control lever 8 connected to the operation lever not shown.                 The notch 51 is provided.

5 also takes another advantageous step in connection with the hygienic mixing tab according to the invention. First and foremost, the valve disc 4 is connected to the connecting plate 52.                 Connected to the temperature control and adjustment block 5, the connecting plate 52 covering the valve disc 4 on one side and the temperature control and adjustment block 5 on the other side.                 It is provided with the protrusion 53. It also has a passage opening 54 formed in the valve disc 4 from the fifth road, which also faces the valve seat disc 3.                 From the side, it can be seen that the mesh-like installation 55 is installed in the passage openings 11 and 12 formed in the valve seat 4, respectively.

In the sanitary mixing tap according to the invention the valve disc and the temperature control and adjustment block can be formed integrally, in which case the passage opening in the valve seat disc                 The cold water inlet openings and the temperature inlet openings in the temperature control and adjustment block are joined, the illustration of which is omitted. However, as shown in the figure                 It is appropriate to form the valve disc on one side and the temperature control and adjustment block on the other side as separate components, so that the cost and                 This is because a material suitable for the function can be used.

Furthermore, although not shown in the figures, in the hygienic mixing tap according to the invention the temperature control and adjustment block can be formed integrally with the control head and the connecting plate, which is                 It is more cost effective than forming as a separate component. This unitary configuration may be copper or brass, but suitable ones are also for cost reasons                 It is made of plastic.

6 is a cross-sectional view of another embodiment of a thermostat controlled mixing tap in accordance with the present invention shown cut away.

The number of functional parts is not shown for ease of understanding. The part shown in FIG. 6 of the sanitary mixing tab according to the invention does not have a control and stop flange.                 Instead the principle according to the invention described above is provided with outer edges 17a, 17b which are spaced from one another than the longitudinal extension of the control and adjustment piston 6.                 It is only illustrated. 6 shows different embodiments at the top and the bottom of the drawing, which will be described below. Both embodiments shown in FIG.                 The difference is that in the embodiment shown in the lower part of FIG. 6, the cooling side leading edge portion 18 hits the outer edge portion 17a or the hot water side leading edge portion 19 on the outer edge portion 17b at the corresponding setting.                 On the other hand, in the embodiment shown at the top of FIG. 6, the control and adjustment piston 6 has its outer edge 17a as its cold water side leading edge and hot water side leading edge 19. FIG.                 Or 17b). This is of course the internal casing of the temperature control and adjustment block 5 and the control and adjustment piston                 It is assumed that a corresponding seal between the outer casings is ensured.

In both embodiments shown in FIG. 6 only one restoring spring element 37 is required, which restoring the control and regulating piston 6.                 It not only serves as a seal, but also serves to seal between the control and adjustment piston 6 and the temperature control and adjustment block 5. Restoring spring element 37 is at least                 In the deflected state, it is formed in a substantially S-shape in the radial direction and has a section that is not shown in detail. This S-shaped section is provided to the temperature control and adjustment block 5.                 In the inserted state the control and adjustment piston 6 is kept under constant stress, and particularly advantageously the external casing and temperature control and adjustment of the control and adjustment piston 6                 This ensures that the clearances 56 formed between the inner casings of the blocks 5 can be made relatively large. Such a large gap 56 is mixed according to the present invention                 This prevents the tab from calcifying. Instead, the embodiment according to the first, second, fourth, and fifth degrees and not the foregoing, although not individually shown in detail.                 It is also mentioned in the embodiments that corresponding gaps are also formed correspondingly large.

FIG. 7 shows a restoring spring element 37 corresponding to the embodiment of FIG. 6 with an S-shaped section, which serves not only as a sealing film but also as a restoring element.                 It can be seen that the restoring spring element 37 has an S-shaped section even under no load.

8 and 9 show another embodiment of a restoring spring element 37 according to the invention. From the eighth degree, the restoring spring element 37                 It can be seen that the spring 37a is formed in a substantially serpentine or meandering shape in the direction. Because of the configuration of this particular spring 37a,                 An outer case 37b surrounding the spring 37a is required, which is composed of plastic or elastomer and is formed in an annular shape.                 Suitable. By the construction of a special restoring spring element 37 having a spring 37a and an outer case 37b, the flexibility of the restoring spring element 37 is greater.                 Can be set to the limit.

In the embodiment of the restoring spring element 37 according to the invention shown in FIGS. 6 to 9 as well as in the embodiment shown in FIGS. 1, 2, 4 and 5 and in the embodiment not shown                 Note that it can be used. The restoring spring element shown in FIGS. 8 and 9 may have an approximately S-shaped section corresponding to the configuration according to FIGS. 6 and 7.                 Can be.

The present invention relates to a cold water hot water inlet, a hot water hot water inlet and a mixed water outlet, a device for radially surrounding the control and adjustment piston, in particular a temperature control and adjustment block, and                 And a temperature dependent adjusting element in cooperation with the adjusting piston, an actuating lever, a restoring spring element for biasing the control and adjusting piston towards the adjusting element, and a cold water annular chamber.                 And an adjacent hot water annular chamber, wherein the control and adjustment piston can be set for the temperature control and adjustment block to an initial position that determines the temperature for temperature control.                 And a thermostat controlled hygienic mixing tap that can be controlled by an adjustment element for temperature adjustment. In addition, the present invention controls the control and adjustment piston                 And a device for radially enclosing the regulating piston, in particular a control and regulating block, a temperature dependent regulating element interlocking with the control and regulating piston, an actuating lever,                 A restoring spring element for biasing the control and adjustment piston towards the adjustment element, the control and adjustment piston being in an initial position for determining temperature for temperature control.                 Control and regulation relating to a thermostat valve that can be set for a device that radially surrounds the piston and can be controlled by an adjustment element for temperature regulation                 will be.

Sanitary mixing taps, the starting point of the present invention, are known from DE-A-41 20 024, for example, while thermostat valves, the starting point of the present invention,                 And many years ago have been known to those skilled in the art of heating.

The sanitary mixing tap as a starting point of the present invention comprises a fixed valve seat disc, a valve disc that can be displaced on the valve seat disc for flow control, temperature control and                 Also provided is a temperature control and adjustment block interlocking with the valve disc for adjustment, the temperature control and adjustment block serving as a device surrounding the control and adjustment piston.                 Play a role. In particular, in the thermostat valve, which is the starting point of the present invention, the thermostat and regulating block not only serve as a device surrounding the control and regulating piston, but also the thermostat.                 It can be formed as part of the valve housing.

In addition, the hygienic mixing tab of the type discussed herein is provided with an actuating lever accessible from the outside and a control lever which is always connected to the actuating lever.                 A control lever connected to the inside of the sanitary mixing tap can be caused by an externally accessible operating lever and a control lever connected thereto.

In sanitary mixing taps of the type discussed herein, hot water intake is typically connected to a cold water intake opening connected to a cold water inlet by a valve seat disc.                 An opening is provided, and the valve disc is formed with a passage opening communicating with the cold water intake opening and the hot water intake opening of the valve seat disc, and controlling and adjusting the temperature.                 The block has a cold water and hot water inlet opening and a cold water annular chamber and a hot water annular chamber in communication with the passage opening of the valve disc. Between temperature control and adjustment blocks, i.e.                 A control and stop flange is installed between the cold water annular chamber and the hot water annular chamber, and the control and adjustment piston is sleeved, and the cold water side leading edge and the cold water side leading edge                 The hot water side leading edge is spaced apart, and the control and stop flange has a width smaller than the gap between the cold water side leading edge and the hot water side leading edge and the cold water side leading edge.                 It protrudes into the intervening space between the hot water side leading edges.

In the above known sanitary mixing tap, which is the starting point of the present invention, there is a slight tightening or no initial stress between the temperature control and adjustment block and the control and adjustment piston.                 An untyped zero ring is installed, which is housed in the corresponding groove of the temperature control and adjustment block. In this form the temperature control and adjustment block and the control and                 The reason for sealing between the adjusting piston is already sufficient between the valve seat disc and the valve disc on the one hand and the temperature control and adjustment block and the valve disc on the other hand                 This is because the idea that if a seal is provided, then 100% seal in this place is unnecessary.

In known sanitary mixing taps the water volume temperature can be simply adjusted due to its configuration as a single lever mixing tap. In addition, temperature control and adjustment block                 Relatively good temperature adjustment is also possible by a control and adjustment piston that can be easily displaced internally. These mixing tabs are relatively                 It will be satisfactory. Nevertheless, although a small amount, on the one hand, because the sealing between the temperature control and adjustment block and the control and adjustment piston is poor                 It has been found that leaks may occur from the cold water annular chamber and from the hot water annular chamber, on the other hand,                 This leakage is not desirable because the effects or set and / or adjustment mixing temperatures may be adversely affected.

Another mixing tap is known from DE-A-36 12 988 which functions similarly to the presumed mixing tap. However, in this mixing tap the cold water annulus and the hot water                 There are no control and stop flanges between annular chambers. Also in this mixing tap, the control and adjustment piston is formed in the sleeve shape, and the cold water side leading edge and the hot water side                 The spacing between the leading edges is greater than the longitudinal extension of the control and adjustment piston so that the control and adjustment piston can be used for cold water and hot water to                 The transverse cross section of the inlet clearance moves in opposite directions, moving between the two leading edges. However, the distance between the cold water side leading edge and the hot water side leading edge is controlled and adjusted.                 It may be smaller than the longitudinal extension of the piston. In this case, the control and adjustment piston extends beyond both leading edges as well for cold water and                 The cross section of the inlet clearance for hot water is reciprocated while changing in the opposite direction. In both cases, the cold water annular chamber and the hot water annular chamber are sealed by a zero ring.                 When the sealing effect by the zero ring is large, leaks from the cold water annular chamber to the hot water annular chamber and vice versa are almost never or almost no.                 The control and adjustment piston will not react until there is a large temperature fluctuation, because the small fluctuations in the temperature will overcome the friction created by the zero ring.                 This is because only a small adjustment force is generated by an unadjustable adjustment factor. On the contrary, weak sealing can result in unwanted mixing of cold and hot water.                 have. Of course, the above disadvantages also apply to thermostat valves operating according to the control and adjustment methods described above.

What is required of all sanitary mixing tabs is that they must be able to be constructed as compact as possible by default. Presumed mix tabs are now                 Although they already meet the highest requirements for specification errors or construction heights, new approaches are always being sought to further reduce the specification errors of the mixing taps.                 have. This requirement is also true for thermostat valves applied in mixing taps.

Accordingly, it is an object of the present invention to make available mixing taps and thermostat valves of the type described at the beginning where the setting and / or adjusting mixture water temperatures are not affected by the leak flow.                 To ensure that At the same time, the mixing tap or thermostat valve should be simple to assembly and to be as compact as possible.

The above object is basically one between the temperature control and adjustment block and the control and adjustment piston in the mixing tap of the type described in the opening paragraph corresponding to the first idea of the invention.                 The above sealing film is provided, and this sealing film is achieved by sealing between or each of the cold water annular chamber and the hot water annular chamber from the outside. This agent of the present invention                 In one embodiment, the leaks of the cold water annular chamber and the hot water annular chamber according to the first selective form and the reverse flows are prevented while the flow is set and / or according to the second selective form.                 The leakage to the outside, which can have a detrimental effect on the adjusted mixing water temperature, is prevented. However, obviously the advantages of both variants are on the one hand with temperature control and adjustment blocks.                 It allows for a good seal between the control and adjustment pistons and on the other hand the control and adjustment pistons are easily reciprocated to the device surrounding the pistons.                 To be displaced. In contrast to conventional seals with type 0 rings, the sealing membrane has a control and adjustment piston in the temperature control and adjustment block.                 It does not generate friction because it can be moved without friction. In the present invention, there is no need to overcome friction forces anymore and control and adjustment                 Since the piston also responds immediately to the fluctuation of the length of the adjusting element, even the minimum temperature fluctuation can be adjusted very quickly, better than in the prior art. Due to this, seen                 According to the invention, only a very small temperature force is required for the temperature adjustment to move the control and adjustment piston relative to the temperature control and adjustment block.                 At small temperature fluctuations, they are already produced by the adjusting element.

In order to achieve the object on which the present invention is based, in the second embodiment according to the present invention, the restoring spring element has a temperature control and adjustment block and a control and adjustment piston.                 Disposed between and supported on the temperature control and adjustment block on one side, suitably on its inner casing, and on the outer casing of the control and adjustment piston on the other side.                 I'm proposing. Known configuration in the prior art for axially arranging the restoring spring element to act on the front end lying inside the control and regulating piston axially                 Instead, the restoring spring element is arranged to externally surround the control and adjustment piston. In other words, the restoring spring element controls and adjusts the length of the piston                 It means that it is arranged in the directional extension and does not leave the control and adjustment piston in the longitudinal or moving direction for support. In this new form                 The advantage of the arrangement is that the width of the mixing tab according to the invention is much reduced compared to known mixing tabs. The reason is that the restoring spring element is just                 This is because it is not necessary to form a separate support flange as supported by the adjustment block as is conventional in the prior art. This advantage is the hygienic mixing tab according to the invention and                 It is obvious that the same principle can be found in the thermostat valve. It is also supported on a thermostat housing or cover as is conventional in the prior art.                 By changing the arrangement of known restoring spring elements and placing them in accordance with the invention, the specification error can be reduced.

Particularly advantageous is the implementation of both of the two inventive solutions described above in the sanitary mixing tap or thermostat valve. This type of mixing tap or                 Thermostat valves not only have extremely small specification errors, but also ensure that the set temperature is always attained without being adversely affected by inadvertent leaks.                 do.

Particularly advantageous for reducing the unit part of the mixing tap or thermostat valve according to the invention and simplifying the construction is that the restoring spring element is combined with its restoring function.                 At the same time, the function is to seal between the temperature control and adjustment block and the control and adjustment piston. This is due to the dual function of the restoring spring element                 It means that additional seals can be saved. The sealing action by the restoring spring element ensures that the restoring spring element is formed of a disc spring and that the control and adjustment piston                 This can be realized particularly well if it is always required to act between the temperature control and adjustment block and the control and adjustment piston with at least a small deflection force regardless of the position.                 have.

Further configurations and improvements of the sanitary mixing tap and thermostat valve according to the invention may be referred to the other terms of the claims first. In addition,                 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention, its configuration, and improvements will be described with reference to the accompanying drawings in which one embodiment is shown. All shown or shown and not described                 The feature is to form the subject matter of the present invention or any combination of the subject matter.

Among attached drawings,

Claims (15)

A cold water hot water inlet (1), a hot water hot water inlet (2) and a mixed water outlet, a means for radially surrounding the control and adjustment piston (6), a temperature control and adjustment block (5),                 The temperature dependent regulating element 7 cooperating with the control and regulating piston 6, the actuating lever and the control and regulating piston 6 towards the regulating element 7.                 With a restoring spring element 35, a cold water annular chamber 15 and an adjacent hot water annular chamber 16, wherein the control and adjustment piston 6 adjusts the temperature for temperature control.                 Thermostat controlled type which can be set for the temperature control and adjustment block 5 to an initial position to determine and controlled by the adjustment element 7 for temperature adjustment                 In the sanitary mixing tap, at least one annular sealing film 21 is provided between the temperature control and adjustment block 5 and the control and adjustment piston 6,                 The sealing film 21 seals between the cold water annular chamber 15 and the hot water annular chamber 16 or the cold water annular chamber 15 and / or the hot water annular chamber 16 from the outside.                 Thermostat controlled hygienic mixing tap. 2. The sealing film (21) according to claim 1, wherein the sealing film (21) is formed in the outer groove (22a) in the temperature control and adjustment block (5) and in the inner groove (22b) in the control and adjustment piston (6).                 A thermostat controlled hygienic mixing tap, which is inserted and held in these grooves 22a and 22b. Cold water hot water inlet 1, hot water hot water inlet 2 and mixed water outlet, means for radially enclosing the control and adjustment piston 6, temperature control and adjustment                 Adjust the block 5, the temperature dependent adjusting element 7 cooperating with the control and adjustment piston 6, the actuation lever and the control and adjustment piston 6.                 A restoring spring element 37 deflecting towards the element 7 and a cold water annular chamber 15 and an adjacent hot water annular chamber 16, the control and adjustment piston 6 being                 The initial position which determines the temperature for temperature control can be set for the temperature control and adjustment block 5 and can be controlled by the adjustment element 7 for temperature adjustment.                 Thermostatically controlled hygienic mixing tap, wherein the restoring spring element 37 is provided between the temperature control and adjustment block 5 and the control and adjustment piston 6.                 And on one side is supported on the temperature control and adjustment block 5 and on the other side on the outer casing of the control and adjustment piston 6.                 Thermostat controlled hygienic mixing tap. 4. The stopper 38a for the restoring spring element 37, according to claim 3, on the outer casing of the temperature control and adjustment block 5 and the control and adjustment piston 6, respectively.                 Thermostatically controlled hygienic mixing tap, characterized in that 38b) is installed. The method according to claim 3 or 4, characterized in that the restoring spring element (37) seals between the temperature control and adjustment block (5) and the control and adjustment piston (6).                 Thermostatically controlled hygienic mixing tap. 6. The restoring spring element 37 according to claim 5, wherein the restoring spring element 37 is between the cold water annular chamber 15 and the hot water annular chamber 16, or the cold water annular chamber 15 and / or the hot water.                 Thermostatically controlled hygienic mixing tab, characterized in that each of the annular chamber (16) is sealed from the outside. The temperature control and adjustment block (5) and adjustment piston (6) according to claim 3, wherein the restoring spring element (37) is independent of the position of the control and adjustment piston (6).                 Thermostatically controlled hygienic mixing taps that apply more than the minimum amount of deflection at all times. Thermostatically controlled hygienic mixing tap according to claim 3 or 4, characterized in that the restoring spring element (37) is formed as a disc spring. 9. The temperature control and adjustment block (5) and the control and adjustment piston (6) have sliding surfaces for the restoring spring elements (37) made of hardened metal.                 Thermostatically controlled hygienic mixing tap, characterized in that it is installed. The temperature control and adjustment block (5) and the control and adjustment piston (6) are each equipped with one or more inserts of hardened metal.                 Is installed, the insert is a thermostat controlled hygienic mixing tab, characterized in that the stopper (38a, 38b) and the sliding surface is formed. 4. The retracting spring element (37) according to claim 3, characterized in that the restoring spring element (37) has a section that is formed S-shaped in the radial direction at least in the deflected state.                 Thermostat controlled hygienic mixing tap. 12. The method according to claim 3 or 11, characterized in that the restoring spring element (37) has a spring (37a) which is formed in a meandering or meandering shape in the circumferential direction.                 Thermostatically controlled hygienic mixing tap. The method of claim 3. The restoring spring element 37 is thermostat controlled, characterized in that it has an outer case 37b made of plastic or elastomer.                 Hygienic mixing tap. 2. A valve valve disc (3) according to claim 1, which is connected to a fixed valve seat disc (3), a valve disc (4) which can be displaced on the valve seat disc (3) for quantity control, and an actuating lever.                 A control lever 8 is provided, and the valve seat disc 3 has hot water intake opening 9 connected to the cold water supply opening 1 and hot water intake connected to the hot water supply opening 2.                 An opening 10 is provided, wherein the valve disc 4 communicates with the cold water intake opening 9 and the hot water intake opening 10 of the valve seat disc 3.                 Cold water and hot water inflow, having openings 11 and 12, wherein the temperature control and adjustment block 5 communicates with the through openings 11 and 12 of the valve disc 4.                 Having openings 13, 14, the valve disc 4 interacts with a temperature control and adjustment block 5 for temperature control and adjustment, said temperature control and adjustment                 A control and stop flange 17 is located between the block 5 and the cold water annular chamber 15 and the hot water annular chamber 16, wherein the control and adjustment piston 6 has a sleeve                 And a cold water side leading edge portion 18 and a hot water side leading edge portion 19 spaced apart from the cold water side leading edge portion 18. The control and stop flange (17)                 Into the space between the cold water side leading edge 18 and the hot water side leading edge 19 with a width B smaller than the gap A between the cold water side leading edge 18 and the hot water leading edge 19.                 Thermostatically controlled hygienic mixing tap, characterized in that protruding. 4. A valve valve disc (3) according to claim 3, connected to a fixed valve seat disc (3), a valve disc (4) which can be displaced on the valve seat disc (3) for quantity control, and an actuating lever.                 A control lever 8 is provided, and the valve seat disc 3 has hot water intake opening 9 connected to the cold water supply opening 1 and hot water intake connected to the hot water supply opening 2.                 An opening 10 is provided, wherein the valve disc 4 communicates with the cold water intake opening 9 and the hot water intake opening 10 of the valve seat disc 3.                 Cold water and hot water inflow, having openings 11 and 12, wherein the temperature control and adjustment block 5 communicates with the through openings 11 and 12 of the valve disc 4.                 Having openings 13, 14, the valve disc 4 interacts with a temperature control and adjustment block 5 for temperature control and adjustment, said temperature control and adjustment                 A control and stop flange 17 is located between the block 5 and the cold water annular chamber 15 and the hot water annular chamber 16, wherein the control and adjustment piston 6 has a sleeve                 And a cold water side leading edge portion 18 and a hot water side leading edge portion 19 spaced apart from the cold water side leading edge portion 18. The control and stop flange (17)                 To the space between the cold water side leading edge portion 18 and the hot water side leading edge portion 19 with a width B smaller than the gap A between the cold water side leading edge portion 18 and the hot water side leading edge portion 19.                 Thermostatically controlled hygienic mixing tap, characterized in that protruding.