FR2706194A1 - Thermostatic dispenser for sanitary use. - Google Patents

Abstract

In a manner known per se, a thermostatic member (25), the outlet element (66) of which urges a regulating element (30), is arranged in a valve housing (1) of a thermostatic distributor for use. sanitary. The axial position of the regulating element (30) relative to a seat surface (32) for cold water and a seat surface (33) for hot water determines the mixing proportions of the mixed water. debited. In order to obtain a stable control behavior in the event of non-standard connection of the water inlet channels (2, 3), the invention provides a device (67) which reverses the direction of movement of the output element (66) of the thermostatic member (25) before transmitting this movement to the regulation element (30). The regulating element (30) and the output element (66) of the thermostatic member (25) thus always move in opposite directions.

Description

DESCRIPTION

  Thermostatic dispenser for sanitary purposes

  The present invention relates to a thermostatic

  static sanitary ware, with a) a valve housing in which an inlet channel for cold water is formed, an inlet channel for hot water and a discharge channel for mixed water;

  b) a thermostatic body, which is arranged in the crankcase

  lining, leans against the latter, may be exposed to the mixed water flow and has an outlet element which performs a displacement during a change in the temperature of the mixed water; c) a regulating element, which can be axially displaced by the outlet member of the thermostatic body and determines the mixing ratio of the mixed water by its relative position

  relative to a seating surface for cold water and a

  seat face for hot water from the valve housing.

  The correct operation of such thermostatic distributors

  Static sanitary use obviously depends on the correct connection of the inlet channel for cold water and the inlet channel for hot water to the corresponding domestic pipes. According to the usual convention, the left-hand water connection is intended for

  hot water and the right one with cold water. In some cases,

  sometimes, voluntarily or not, the domestic pipes are not laid according to this convention, so that the respective functions of the hot water connection and the cold water connection are permuted with respect to the norm. For such cases, it is necessary to supply thermostatic distributors for sanitary purposes

  whose construction is modified compared to normal

used.

  EP-A-0 242 680 discloses a heat distributor

  static sanitary type of the type mentioned in the introduction which is

  intended for water connections complying with the standard. The document DE-

  A-41 16 954 discloses the associated construction modification which is used when the cold water and hot water connections are switched. This modification consists of: in the distributor

  thermostatic for "normal" sanitary use according to EP-A-

  0 242 680, the casing of the thermostatic body is rigidly assembled

  wheat to the regulating element; the two pieces rest on a pressure axis so as to move together. On the other hand, in the variant according to document DE-A-41 16 954, the regulating element and the casing of the thermostatic body are uncoupled from one another: the casing of the thermostatic body itself remains immobile, while the regulating element performs a relative movement with respect to this organ. The changes in the construction of the thermostatic valve which does not comply with the standard according to DE-A-41 16 954 with respect to the thermostatic distributor conforming to the standard according to document EP-A-0 242 680 are however relatively important. The present invention aims to provide a thermostatic dispenser for sanitary use of the type mentioned in the introduction which

  designed to be used when water connections are required

  with the least possible modifications to the construction

  compared to a corresponding thermostatic dispenser designed

  for water connections that comply with the standard.

  According to the invention, this object is achieved by the fact that

  device is interposed between the output member of the thermocouple

  and the regulating element, which reverses the direction

  tion of the movement made by the output element so that

  the output member of the thermostatic member and the regulating element

  move in opposite directions.

  According to the invention, the permutation of the cold water and hot water connections with respect to the standard is compensated by the reversal of the direction of movement of the distributor spool with respect to the execution according to the standard: c is only in the latter case that the output element of the thermostatic body and

  the regulating element move in the same direction. The provision

  to reverse the direction of travel is

  essentially the only modification by which a heat distributor

  static device according to the invention differs from the thermostatic

  corresponding static according to the standard. This device replaces the otherwise existing pressure axis which, in the embodiment conforming to the standard, substantially rigidly connects the output element of the

  the thermostatic body to the regulating element. The whole of the

  the valve and the thermostatic device, and possibly also the regulating element, can remain unchanged. The geometry of the seat surfaces of the dispenser also remains unchanged, so that the control behavior of the thermostatic distributor according to the invention is practically no different from that of a

  Thermostatic dispenser according to the standard.

  According to a further feature of the invention, a

  spring is disposed between the output member of the thermocouple member

  static and the regulating element, spring that separates these two parts from each other. This spring ensures the required displacement in opposite directions during a decrease in the temperature of the water

  mixed. Conversely, the device for reversing the direction of de-

  placement compresses this spring when the temperature of the mixed water increases, the output element of the thermostatic body and the element

  of regulation then approaching one another.

  According to an exemplary embodiment of the invention, the device

  To reverse the direction of travel comprises: a) a cylinder filled with a fluid agent and open on one side; b) a piston slidable in the cylinder and connected to the output member of the thermostatic member; c) a sleeve, coaxially surrounding the piston and sinking into the cylinder, which is connected to the regulating element,

  the piston being sealed with respect to the bushing and the bushing vis-à-vis

cylinder screw.

  In this mode of construction, when the piston is pushed into the cylinder by the output member of the thermostatic body,

  the bushing is out of the cylinder of a corresponding measurement by

  pressure of the fluid agent and thus displaces the regulating element

in the opposite direction.

  The fluid agent may be a plastic synthetic material

deformable or an oil.

  According to an alternative embodiment of the invention, the device for reversing the direction of displacement comprises: a) an inner sleeve, which is guided to move axially in the valve housing, is connected to the output member of the body thermostatic and has a cam surface oriented obliquely outwardly; b) an outer sleeve, which is axially guided in the housing

  valve, is connected to the regulating element and pre-

  has a cam surface oriented obliquely inwards; c) at least one cam member, which is disposed between the cam surfaces and which, by its own radial displacement, transforms the axial displacement of one of the sockets into an axial displacement of

  the other sleeve in the opposite direction.

  If, for example, the inner sleeve is pushed downwards by the output member of the thermostatic member, this causes the cam member to move radially outwards. This displacement is itself transformed into a displacement

  axial direction of the outer sleeve, whose direction is now op-

  posed to that of the axial displacement of the inner sleeve. The situation

  In the opposite case, whether the bushing is

  outside is pushed down by the regulating element.

  The outer sleeve can be assembled by screwing to

the regulating element.

  But the outer sleeve can also be integral with the regulating element, so be the deck of the element

regulation.

  The cam part is, at the simplest, a ball.

  According to another embodiment of the invention, the device for reversing the direction of movement comprises: a) a counter-support element fixed on the valve housing; b) at least one rocker element, which is pivotable about an axis

  formed by the counter-support element and is connected by one end

  mitted to the output element of the thermostatic body and by its

  other end to the regulating element.

  The inversion of the direction of displacement is here produced by the opposite directions of displacement of the two ends of

the rocking element.

  In general, several rocker elements of this type are arranged in a star around the axis of the distributor or the thermostatic body. In such a case, the counter-support element is advantageously pot-shaped and has a sharpened edge. It is furthermore advantageous that one end of the rocker element bears against an axially movable actuating rod.

  which is attached to the output member of the thermostatic member.

  The assembly between the other end of the rocker element and the regulating element is advantageously obtained in that the end in question of the rocker element engages in

  a groove provided on the regulating element.

  In order to facilitate the assembly of the rocker elements or

  to simplify the realization of the groove itself, this last

  may be formed by a step of the regulating element and a

  bushing assembled by screwing to the regulating element.

  The following description describes in more detail embodiments of the invention with the aid of the accompanying drawings, in which: FIG. 1 is an axial sectional view of a first embodiment of a thermostatic distributor with sanitary use; Figure 2 is an axial sectional view, similar to Figure 1, of a second embodiment; FIG. 3 is an axial sectional view, similar to FIGS.

  and 2, of a third exemplary embodiment of a heat distributor

  static for sanitary purposes; The thermostatic dispenser for sanitary use shown in FIG. 1 has a designated external valve housing.

  1. This housing has an inlet channel 2 for cold water, a

  Inlet 3 for hot water, shifted in parallel to channel 2, and an evacuation channel 4 for mixed water, which is also offset in parallel. The channels 2, 3, 4 all open into a bore 60 of the valve housing 1. A generally designated control insert 5 is screwed into the valve housing i (screw 61) and enters through

  its inner region in the bore 60 of the housing.

  The regulation insert 5 comprises three bushes 6, 7, 8

  fastened to each other by screwing, which are partially

  are covered by a bell-shaped insert casing 62. The sleeve 7, upper in the figure, is sealed against the inside of the insert housing 62 by an O-ring seal 63 and has a coaxial extension collar 12 on which a sleeve 13 of a rotating handle. can be screwed by a thread with a rapid pitch, the sleeve 13 carrying a rotating handle assembled by force or by bracing shapes (not shown). An adjustment screw 14 is arranged with possibility of adjustment inside the sleeve 13 and coaxially with the latter. The sleeve 7, and therefore the sockets 6 and 8, are fixed in position relative to the housing

  insert 62 by clamping screws 17.

  The intermediate bushing 6 of the regulating insert 5 is provided with outlet openings 10 which connect the inside of the bushes

  6, 7 and 8 to a mixed water evacuation chamber 9, which is obviously

  in the insert housing 62 and communicates with the channel 4

  mixed water outlet of the valve housing 1.

  The lower bushing 8 is provided with cold water inlet openings 19 which connect the inside of the bushes 6, 7 and 8 to the cold water intake duct 2 and, axially offset with respect to the openings 19, hot water inlet openings 20 which connect the sockets 6, 7 and 8 to the hot water inlet channel 3. The socket

  8 is closed downward on its front side by a bottom 21.

  A generally designated thermostatic member 25 is housed inside the bushes 6 and 7. This member comprises a chamber 27 of expandable material, in the form of a hollow cylinder with a double wall, which is

  connected to a housing 26. The receiving space for the expanded material

  table, which completely fills room 27, is closed by a member

  brane 64 which acts on a pressure axis 28 which can be pushed out of the casing 26. By means of the pressure axis 28, which can slide sealingly in the extension collar 12 of the sleeve 7, the thermostatic member 25 rests against a relatively strong safety spring 65 housed inside the screw

  14, and therefore indirectly against the adjustment screw 14.

  The force connection is provided by a compression spring 31 which is arranged between a cylindrical appendage 66, serving as an output member, the thermostatic member 25 and a regulating element 30 in the form of a hollow cylinder, housed in the socket 8. In a manner that remains to be described, the regulating element is coupled to and moved by the thermostatic member 25.

  to adjust the temperature of the mixed water. The element of regulation

  30 cooperates with seat surfaces 32, 33 respectively associated

  the cold water inlet openings 19 and the hot water inlet openings 20. It is crossed internally by the cold water that flows through the intake channel 2 of the crankcase.

  valve 1 and through the inlet openings 19 of the socket 8.

  This water exits through apertures 34 in the conical head portion of regulating member 30. There it encounters hot water, which is

  arrived there via the hot water inlet channel 3 of the car-

  1 and the inlet openings 20 of the sleeve 8. The two streams of water meet in front of the free edge of the thermostatic member 25 and then flow inside and outside the the member 25. The flow of water which has penetrated inside the thermostatic member 25 flows through bushings 35 passing through the double wall of the chamber 27 of expandable material, and then meets the flow of water that has flowed outward along

  the thermostatic element 25. The two partial flows of mixed water

  Together, the openings 10 of the bushing 6 and, through the exhaust channel 4 of the valve housing 1, are evacuated via a not shown outlet of the valve apparatus. It can therefore be seen that the mixing proportions of

  the mixed water flowing through channel 4 are determined by the

  axial position of the regulating element 30, which defines the slots at the seat surfaces 32 and 33, through which

flow the flow.

  The conditions described so far are essentially known (see, for example, DE-C 27 35 354), apart from the fact that it is hot water and not cold water. flows through the inlet openings 20 adjacent the bottom 21 in the socket

  8. FIG. 1 therefore represents a thermostatic distributor in the

  which, voluntarily or not, cold water is introduced by the way by which the hot water normally arrives, and vice versa. In the thermostatic distributor described in DE-C 27 35 354, the regulating element is assembled substantially rigidly to the expandable material element of the thermostatic element, so that the regulating element and the thermostatic element complete all moves in the same direction. But that would not be

  possible with the modified conditions of water supply which are

  Figure 1. In fact, a heating of the thermo-

  the static temperature above the set temperature would result in a displacement

  cement of the regulating element releasing a quantity of hot water

  even higher: it would not be possible to regulate

stable lation.

  This is why the thermostatic distributor represented

  in FIG. 1 is provided with a device which does not transmit the

  thermostatic member 25 to the regulating member 30

  only after reversing the direction of movement by 180. This provision

  overall figure 67 in Figure 1. It includes a

  lindre 68, placed on the bottom 21 of the sleeve 8 and open upwards,

  whose cylindrical chamber is filled with a fluid agent 69 or

  tically deformable. This agent may in particular be a mineral or synthetic oil, a fluid synthetic material or the like. A piston sinks into the plastically deformable agent 69, the rod 71 of this piston resting in the region of the cylindrical appendix 66 against the underside of the thermostatic member 25. But the piston 70 is not sealed. vis-à-vis the wall of the cylinder 68. On the contrary, an axially displaceable sleeve 72 is located between the face

  outer casing of the piston 70 and the wall of the cylindrical bore

  drique, sleeve that protrudes upwardly out of the cylinder 68 and rests against a front face, directed downwards, of the regulating element 30. The piston 70 is sealed with respect to the sleeve 72 by a O-ring seal 73, and the sleeve 72 with respect to

  cylinder 68 by an O-ring seal 74.

  The operating mode of this thermostatic distributor is as follows: It will be assumed that at a given instant, the quantity of cold water flowing into the valve housing i through the inlet channel 2 is greater than the quantity necessary to obtain the setpoint temperature value, set at the rotary handle 13, of the mixed water leaving the evacuation channel 4. The mixed water of

  insufficient temperature requires the chamber 27 of dilated material

  table, so that the material contained in the chamber contracts.

  The pressure axis 28 can now penetrate further inside the casing 26 of the thermostatic member 25. Following the action of the spring

  31, the thermostatic member 25 and the regulating element

  30 are simultaneously pushed, respectively upwards and downwards. The movement of the regulating element 30 downwards

  is accompanied by a corresponding displacement of the sleeve 72.

  The plastically deformable agent 69 inside the cylinder 68 now pushes the piston 70 upwards, so that the rod

  piston 71 remains in application against the thermostatic member 25.

  The displacement of the regulating element 30 downwards results in the slot present at the seat surface 32 becoming narrower, while the slot at the

  Seat surface 33 expands to a corresponding extent.

  The supply of hot water increases to a corresponding extent,

  thought of the intake of cold water, so that the temperature of the mixed water detected by the chamber 27 of expandable material approaches to

again the set value.

  Conversely, in the presence of a situation in which the amount of hot water flowing into the valve housing i through the intake channel 3 is greater than the amount corresponding to the preset set temperature of the mixed water. , it occurs:

  The excessive temperature of the mixed water is

  that the expandable material present in chamber 27 is

  late: the pressure axis 28 is pushed further out of the casing 26 of the thermostatic member 25. Whereas the pressure axis 28 rests up against the safety spring 65, which must be considered rigid in the present context, and therefore ultimately against the rotating handle 13, the thermostatic member 25 now moves down. The piston rod 71 pushes the piston 70 further inside the cylindrical bore. The piston 70 then compresses

  the plastically deformable agent 69 present in the cylindrical bore

  drique, so that the sleeve 72 is pushed out of the cylinder 68 against the direction of movement of the piston 70. The sleeve 72 pushes up the regulating member 30 which is assembled to it by force, while the spring 31 is compressed. As a result, the slit at the seat surface 32 becomes larger, and the slit at the seat surface 33 shrinks to a corresponding extent. The quantity of hot water is therefore reduced in favor of the amount of cold water, so that the

  Mixed water temperature approaches the set point again.

  We can see that we obtain, with the distributor

  thermostatic for sanitary use shown in FIG.

  Stable regulation behavior despite permutation of water intake channels compared to usual conditions. That is

  made possible by the device 67, which ensures a displacement in

  opposite rections of the thermostatic member 25 and the element of

regulation 30.

  The embodiment of a thermostatic dispenser for sanitary use which is shown in Figure 2 corresponds to a large extent to that described above using the figure

  1. The corresponding parts are therefore designated by the same reference

  numerical strength increased by 100. The basic structure of the examples of

  Figures 1 and 2 are identical, with the exception of the

  which ensures a reversal of the relative directions of movement

  of the thermostatic body and the regulating element. The description

  The following statement may therefore be limited to explaining this difference.

  The device in question for displacement reversal is designated 167 in FIG. 2. It comprises an inner sleeve 175 which is guided by a lower portion 175a of enlarged diameter against a cylindrical projection 176 of the bottom 121. inner sleeve '175 rests up against a face, directed towards

  the bottom of the thermostatic body 125.

  The inner sleeve 175 is surrounded by an outer sleeve

  coaxial element 177, which is assembled by screwing to the re-

regulation 130.

  The inner sleeve 175 is provided at the bottom with an oblique surface 178 facing outwards. Correspondingly, the outer sleeve 177 is provided at the bottom with an oblique surface 179 facing inwards. Several balls 180 are trapped between the surfaces 178 and 179 of the inner sleeve 175 and the outer sleeve 177, being distributed over the periphery; but these balls can also move on the front side of the bottom

121 which is turned upwards.

  The device 167 transmits in the following manner the displacement

  cement of the thermostatic member 125 on the regulating element: If the thermostatic member 125 experiences an increase in temperature (following for example the addition of an increased quantity of hot water), the pressure axis 128 and then moves the assembly of the thermostatic member 125, with the inner sleeve 175 force-applied thereto, downwardly in FIG.

  from the inner socket 175 down is transformed, by the over-

  oblique face 178 has at its lower end a displacement

  Balls 180 radially outwardly. During this move

  180, the balls 180 themselves cooperate with the oblique surface

  179 of the outer sleeve 177 so that this

  the last is moved upwards together with the

  130, against the force of the compression spring 131. The control element 130 and the thermostatic member 125 thus move towards one another. The consequence is again an enlargement of the passageway for cold water at the expense of the passageway for hot water, so that, as already described above for FIG. Mixed water temperature approaching again

the set value.

  On the other hand, if the temperature of the mixed water

  the thermostatic member 125 is less than the set point, the expandable material present in the chamber 127 contracts: the pressure axis 128 can penetrate deeper into the thermostatic member 125. The compression spring 131 pushes multaneously -the thermostatic organ 125 upwards and the regulating element 130 down. The transmission of force between the outer sleeve 177 and the inner sleeve 175 now occurs in the opposite direction: the displacement of the outer sleeve 177 downwards is transformed, via the oblique surface 179 which is at its lower end. in a movement of the balls radially inwards, and this displacement is in turn transformed, via the oblique surface 178, facing outwards, of the inner sleeve 175, in a displacement of the inner sleeve 175 up. During this movement, the regulating element 130 therefore moves downwards in FIG. 2, so that the path for the hot water is more unobstructed while the path for the cold water is more restricted. The temperature of the mixed water detected by the thermostatic member 125 is now approaching

again the set value.

  The exemplary embodiment of a thermostatic dispenser for

  The sanitary use shown in Figure 3 is similarly

  4, so that the corresponding parts have been designated by the same reference numeral increased by 200. The difference again relates to the device which provides displacement in opposite directions of the thermostatic body and the element. regulation.

  This device is generally designated 267 in FIG.

  It comprises a cup-shaped support element 281, resting

  on the bottom 221 and whose upper edge 282 is made tapered. Enjoyed-

  each bar-like rocker 283 rests on the edge 282 in the middle region. Flip-flop members 283 are radially disposed and form a kind of star shape. The radially inner ends of the rocker members 283 are applied against the lower front edge of an actuating rod 284 which is

  assembled by force to the thermostatic member 225.

  The radially outer ends of the flip-flop elements 283 engage from the outside in complementary shape in a groove of the regulating element 230, which is formed, on the one hand, by a step in the internal profile of the regulating element 230 and, secondly, by a bushing 285 screwed into the element

230.

  The operating mode of the device 267 shown in FIG. 3 is as follows: If the thermostatic member 225 cools below the preset set temperature following the supply of too much water

  cold, the pressure axis 228 returns to the thermostatic member

  static 225. The spring 231 can spread the thermostatic member 225

  and the regulating element 230 from each other, the first one moves

  up and the second down. As a result, flip-flop members 283 are tilted about the edge 282 of counter-support member 281 with the radially outer ends moving downward and the radially inner ends upward. The actuating rod 284 is pushed upwards to a corresponding extent and remains pressed against the thermostatic member 225. The movement of the regulating element 230 downwardly generates, in the manner already described by two before, a choke of the flow of cold water in favor of the flow of hot water, and therefore the restoration of the set temperature

  desired mixed water leaving the dispenser.

  On the other hand, if the temperature of the mixed water which is

  tected by the thermostatic member 225 is too high, the axis of pres-

  228 leaves the thermostatic member 225. The thermostatic member 225 is pushed down, as was also the case in this

  situation for the exemplary embodiments of FIGS. 1 and 2.

  placement is jointly accomplished by the actuating rod 284

  which, acting on the radially inner ends of the

  latching members 283, rotate these elements around the edge 282 of

  the counter-support element 281. The displacement of the radial ends

  The inner portions of the rocker elements 283 downward are accompanied by a corresponding upward movement of the ends.

  external flip-flop elements 283, so that the element

  230 is pushed upwards while the compression spring

  sion 231 compresses. As has already been explained several times, this displacement of the regulating element 230 causes a constriction of the hot water flow and an increase in the flow of cold water, so that the temperature of the mixed water approaches again the set value. The three embodiments described are all characterized by the fact that the external structure of the regulation insert 5 or 105 or 205, as well as the valve housing i or 101 or 201, can remain unchanged with respect to the connection conditions. normal ", in accordance with the standard. Likewise, most of the

  parts used inside the regulating inserts remain

  changed from the "normal" state. This even allows, if necessary, to convert "on site" a regulation insert designed for "normal conditions" into a regulating insert suitable for

  Permitted water connections that do not comply with the standard.

  In the three embodiments, there are shown elements 90, 190 or 290 of the type fasteners extending substantially in

  parallelism to the axis; they serve to maintain the differences

  parts before final assembly. It is then necessary to group

  any such elements all around the axis of the adjustment insert, 105 or 205.

Claims (14)

  1.- Thermostatic dispenser for sanitary use, with a) a valve housing in which an inlet channel for cold water, an inlet channel for hot water and an evacuation channel for the cold water are formed. mixed water;   b) a thermostatic body, which is arranged in the crankcase   lining, leans against the latter, may be exposed to the mixed water flow and has an outlet element which performs a displacement during a change in the temperature of the mixed water; c) a regulating element, which can be axially displaced by the outlet member of the thermostatic body and determines the mixing ratio of the mixed water by its relative position   relative to a seating surface for cold water and a   seat face for the hot water of the valve housing, characterized in that a device (67; 167; 267) is interposed between the output member (66; 166; 266) of the thermostatic member   (25; 125; 225) and the regulating element (30; 130; 230)   tif which reverses the direction of movement effected by the output member (66; 166; 266) such that the output member (66; 166; 266) of the thermostatic member (25; 125; 225) and the element of   control (30; 130; 230) move in opposite directions.   2. Thermostatic distributor according to claim 1, characterized in that a spring (31; 131; 231) is disposed between the output member (66; 166; 266) of the thermostatic member (25; 225). and the regulating element (30; 130; 230) is springing   separate these two pieces from each other.   3. Thermostatic dispenser according to claim 1 or 2, characterized in that the device (67) for reversing the direction traveling includes: -   a) a cylinder (68), filled with a fluid medium (69) and open on one side; b) a piston (70) slidable in the cylinder (68) and connected to the output member (66) of the thermostatic member (25); c) a sleeve (72), coaxially surrounding the piston (70) and sinking into the cylinder (68), which is connected to the regulating element (30), the piston (70) being sealed with respect to screw of the socket (72), and the   sleeve (72) with respect to the cylinder (68).   4. Thermostatic dispenser according to claim 3, characterized in that the fluid agent (69) is a synthetic material plastically deformable.   5. Thermostatic dispenser according to claim 3,   characterized in that the fluid agent (69) is an oil.   6. Thermostatic dispenser according to claim 1 or   2, characterized in that the device (167) for reversing the direction   displacement arrangement comprises: a) an inner sleeve (175), which is guided axially in the valve housing (101), is connected to the output member (166) of the thermostatic member (125) and has a cam surface (178) oriented obliquely outwardly; b) an outer sleeve (177), which is axially guided in the   valve housing (101) is connected to the regulating element   tion (130) and has a cam surface (179) oriented obliquely inwardly; c) at least one cam member (180), which is disposed between the cam surfaces (178, 179) and which, by its own radial displacement, transforms the axial displacement of one of the sockets (175, 177) into a axial displacement of the other sleeve (177, 175) in opposite direction.   7. Thermostatic dispenser according to claim 6, characterized in that the outer sleeve (177) is assembled by   screwing to the regulating element (130).   8. Thermostatic dispenser according to claim 6, characterized in that the outer sleeve is integral with the element regulation.   9.- Thermostatic dispenser according to any one of   Claims 6 to 8, characterized in that the cam member (180) is a ball.   10. Thermostatic dispenser according to claim 1   or 2, characterized in that the device (267) for reversing the displacement rection includes:   a) a counter-support element (281) fixed to the valve housing   terie (201); b) at least one latch element (283), which is pivotable about an axis formed by the counter-support member (281) and is connected at one end to the output member (266) of the thermostatic element (225), and by its other end to the element regulation (230).   11. Thermostatic dispenser according to claim 10, characterized in that the counter-support element (281) is in the form of   pot and has an edge (282) made tapered.   12. Thermostatic dispenser according to claim 10 or 11, characterized in that one end of the rocker element   (283) is applied against an axially movable actuating rod (284)   which is attached to the output member (266) of the thermocouple static (225).   13.- Thermostatic dispenser according to any one of   Claims 10 to 12, characterized in that one end of   the rocker element (283) engages in a groove provided on the regulating element (230).   14. Thermostatic dispenser according to claim 13, characterized in that the groove is formed by a step of the regulating element (230) and a sleeve (285) assembled by screwing to the regulating element (230).