FR2713735A1 - Automatic closing valve equipped with a device for delaying the closing of the auxiliary valve which opens with a permanent magnet. - Google Patents

Abstract

a) Self-closing valve fitted with a device for delaying the closing of the auxiliary valve which opens by a permanent magnet. b) Self-closing valve characterized in that as a closing member of the auxiliary valve (4), there is provided in a hollow housing pivot (41) made of a non-magnetic material a piston (42) capable of moving axially and which carries an internal permanent magnet (43), while on the housing (41) is disposed an external permanent magnet (50) fixed to the delay device and capable of being moved axially by it on the pivot (41) of the housing .

Description

"Self-closing valve equipped with a delay device

  of the closing of the auxiliary valve which opens with a permanent magnet "

  The present invention relates to a

  automatic control whose main valve is controlled by a manually operated auxiliary valve and is equipped with a delay device to delay the

  closing of the auxiliary valve while, by

  handle against the force of a closing spring.

  The automatic valve is opened with at least one permanent magnet and the delay device is operated. An automatic closing valve of this type is known from the German publication DE 38 11 358 A1. In this device the auxiliary valve is controlled by means of a magnetic field. In this case it is proposed that in the backpressure chamber a

  plate-shaped closing member of magnetic material

  that is pushed in the closing direction by a res-

  helicoidal spell. A magnetic field produced outside the counterpressure chamber is then provided so that it overcomes the force exerted by the helical spring and

  keeps the closure member in the open position

  ture. If, on the other hand, the effective magnetic field is

  bli, then the spring pushes the closure member into the

closing position.

  t The spring is in this case arranged in a space fed by the circulating fluid, which can create

problems.

  The object of the invention is to further improve the

  self-closing pope of this type. It is part of this goal to create a self-closing valve of a

  compact construction that can be integrated into a

  tigeur. For this purpose, the invention relates to a self-closing valve characterized in that as closing member of the auxiliary valve, it is provided in a

  housing hollow pivot made of a non-magnetic material

  that a piston that can move axially and that

  carries an internal permanent magnet, while on the bowl-

  tier is an external permanent magnet attached to the

  it is able to be moved axially by it on the housing pivot, so that the piston is applied in the closed position on the seat of the auxiliary valve by repulsion from the internal and external permanent magnets, while that in the open position the piston is pushed in the direction

  opposed by repulsion from permanent magnets.

  According to another characteristic of the invention,

  the outer permanent magnet surrounds in the form of a ring the

  of the housing, while the internal permanent magnet

  placed on the piston takes the form of a bar, the magnet

  external permanent and the internal permanent magnet being

  respectively adjacent to the delay device with the

  same pole, for example the south pole.

  The benefits that can be obtained with

  the invention consists in particular in that the iron member

  meture is only blocked in its two positions by

  the two permanent magnets, and in that the coil spring

  coidal can be deleted. The two permanent magnets form

  a kind of "magnetic spring" by which

<2> 2713735

  the closing member is pushed into its closed position

  ture or in its open position. With resources

  Simple, it is possible to obtain a precise and constant control of the auxiliary valve by means of appropriate magnetization and the pushing action of the two magnets.

  over a relatively long period of use.

  As a delay device, it is advantageous to use a fluidic delay member on the housing of which the external magnet can be fixed directly. But of course other delay devices can also be implemented, such as

example a clockwork mechanism.

  In another embodiment of the invention,

  it can be used advantageously as an organ

  valve, a membrane on which is available

  the valve seat for the auxiliary valve, while on the outer edge of the diaphragm a housing pivot of the auxiliary valve can be buttoned with an annular flange so that the main valve member, together with the entire auxiliary valve, can be set up

  as a constituent unit in a valve housing.

  Advantageously, the main valve and the

  auxiliary valve may be in this case grouped with a mixer, so that the self-closing valve is capable of being actuated by a handle in an axial displacement, while by a rotational movement of this handle, we can adjust the ratio mixing or

  the temperature of the delivered fluid. In this case it is possible

  to integrate the self-closing valve in a mixing valve cartridge whose external dimensions as well as the connections for cold water, hot water and mixed water, correspond to a mixer tap without

  automatic closing device sold in large quantities

  in commerce, so that a cartridge of

  can be set up at will in a body of

  sanitary tapware with or without shut-off valve

  tomatic. Inventory management of valve bodies

  corresponding sanitary facilities can thus be remarkably

  plified. In addition, mixer taps with self-closing valves can also be retrofitted.

  in mixer taps already installed in

  Lées. The present invention will be described hereinafter

  in more detail using alternative embodiments of

  shown in the accompanying drawings in which: - Figure 1 shows in longitudinal section and on an enlarged scale, part of a sanitary tapware

  mixing and dispensing water with shut-off valve

automatic ture;

  - Figure 2 shows in its closed position

  in longitudinal section and on a larger scale, the self-closing valve shown in Figure 1;

  - Figure 3 shows the self-closing valve

  shown in FIG. 2, in its position of

Verture;

  - Figure 4 shows the mixer tap re-

  shown in Figure 1, with the different parts

  decked out from each other; - Figure 5 shows in longitudinal section the

  auxiliary valve shown in Figure 1 with the

  closing valve of the main valve made in the form of a membrane; - Figure 6 shows in longitudinal section the guide disc shown in Figure 1; - Figure 7 shows a top view of the guide disc according to Figure 6; and

  - Figure 8 shows the mixer tap se-

  1, in the section plane VIII.

  The sanitary taps represented on the

  1 consists of a valve body 1 partially shown, which is capable of being fixed on a washbasin (no

  shown on the drawing) and which is fed with fresh water

  via a cold water pipe 12 and a hot water pipe 13. In a bore 15 of the valve body 1 there is provided a cartridge housing 2 for

  the housing of the valve elements of the mixing valve, a

  main poppet 3 and an auxiliary valve 4. From the fresh water supplied via the cold water pipe 12 and the hot water pipe 13, water

  mixed mixture can be obtained in the cartridge case

  che 2 and delivered via a water outlet

  joint 14 of the valve body 1.

  The cartridge case 2 is constituted by a cartridge sleeve 20 and a cartridge bottom 21, as can be seen in particular in FIG. 1 and in FIG.

  4. The cartridge sleeve 20 has in its upper part

  a reduction with a bore 201. In the internal space between this reduction and the bottom 21 of the cartridge, there is provided a valve seat disc 24 locked in rotation and, applied thereto, a control disc 23 rotatable, which is integral in rotation with an annular piece 2320 and which passes through the bore 201 with a flange 2321, while to allow axial support and improved mounting, a sliding ring 202 is disposed between the inner face of the

  cartridge sleeve 20 and the front face of the

nular 2320.

  The control disc 23 is then completed by

  a mixing disk 231 which is applied on one side to the disc

  valve seat 24 and which carries on the other side a guide disc 232 which it is integral in rotation, which, for its part, is integral in rotation with the workpiece

ring 2320 with pivot 2321.

  In the bottom of the cartridge 21 are provided openings corresponding to the mixed water outlet 14 and the cold water and hot water pipes 12, 13, openings in the edge zones of which tubular seals are arranged. 210 which apply respectively, by their front face, on the one hand against the valve body 1 and secondly against the valve seat disc 24 to seal. In the

  valve seat disc 24 are provided, correspondingly

  corresponding to the openings of the cartridge bottom 21, at the center

  an outlet opening 241 and a concentric circular arc a cold water inlet opening 242 and a hot water inlet opening 243 coating the

  annular segments, as can be seen in particular from

in Figure 8.

  The mixer disc 231 applying above comprises coaxially with respect to the outlet opening

  241 of the valve seat disc 24, an opening of

  2311 and, corresponding to the arcs of the valve seat disc 24, an opening

  intake 2312 in the form of an annular segment.

  The admission opening 2312, the admission opening

  Cold water mission 242 and the hot water inlet opening 243 are then arranged relative to each other so that depending on the rotational position they can be brought to a different covering relative to each other. to others, so that you can get cold water as well as hot water or water

  mixed or tempered in any mixing ratio.

  The intake opening 2312 extends into the disc of

  232 and opens into an annular channel which is de-

  limited by a peripheral bead 2322. Concentrically to this bead 2322 is formed a valve seat 2323 which

  surrounds the central outlet opening 2311. On the

  2322 is placed a membrane 30 which also carries a housing pivot 41, which is buttoned

in the membrane by a flange 411.

  The membrane 30 constitutes the closure member of the main valve 3, while as a reinforcement a plate 31 is concentrically disposed in the membrane 30 in the form of a rolling body. In the zone

  annular shape of the inlet opening 2312, it is

  sees a throttling channel 45, so that the pressure existing in the inlet opening 2312 can enter a counterpressure chamber 412 delimited by the

  housing pivot 41 and the membrane 30. The choke channel

  45 passes through the membrane 30 and the plate 31 in the border zone. Concentrically in the membrane 30 and

  in the plate 31 is formed another channel 44 which is sus-

  able to be closed by a front face of the piston 42

  against the plate 31. In addition, the piston 42 comprises a

  43. The piston 42 and the channel 44 formed in the membrane 30 and the plate 31, constitute the auxiliary valve 4, the admission being effected via

the choke channel 45.

  The guiding disc 232 is secured to the mixing disc 231 by a stud 2325. The constituent unit of the auxiliary valve 4, shown separately in FIG. 5, can be put in place with the membrane 30 on the peripheral bead 2322 of the disc. 232, so that the membrane is then maintained in a sealed manner

  against the bead 2322 by the annular piece 2320, tan

  say that the annular portion 2320 is also integral in

  rotation of the guide disc 232 by means of studs 2326.

  The control disk 23 is thus formed by the mid-disk

  231, the guide disc 232, the auxiliary valve 4 and the annular part 2320, all the elements

  being integral in rotation with each other. By the-

  The individual parts shown in FIG. 4 are thus introduced into the cartridge sleeve 20 and this is

  closed by the cartridge bottom 21.

  After that, the entire cartridge of

  geur, as is customary for mixers used without self-closing valves, is maintained in

  the bore 15 of the valve body 1 by an annular disc

  mounted on the front side with two setscrews

  26. This results, on the one hand, by the tubular seals 210 in the bottom of the cartridge 21, a sealed connection of the inlet and outlet channels in the valve body 211, with the corresponding openings

  in the valve seat disc 24. The different parts of the

  Individual portions of the control disc 23, connected together and being locked in rotation, are then supported.

  on the sliding ring 202, while the pivot of the housing

  tier 41 with the membrane 30 is pressed against the annulus

  nipple 2320 sealingly on the peripheral bead 2322, and the inlet channel 2312 and the channel of

  output 2311 are connected by means of the seals

  2324 to the corresponding channels of the mixing disk 231.

  As retardation device there is provided a fluid retarding member 5, as can be seen in particular in Figures 2 and 3. The delay member 5 is formed in the form of a capsule 54 consisting of a cover 541 and 542. In the cover 541, there is provided in the center a first chamber 51 and, concentrically with this first chamber, a second chamber 52 for a

  fluid such as for example a hydraulic fluid. The first

  first chamber 51 is connected to the second chamber 52 by

  through a throttle hole 53 and

  530. To separate the two chambers 51, 52 from each other there is provided a one-piece elastic connecting body consisting of a pot-shaped membrane.

  , an annular sleeve 57 and a return portion

  571. The outer portion of the annular sleeve 57 is clamped in the separation slot between the cover 541 and the bottom 542 of the capsule 54, using screws 5422. The transition between the annular sleeve 57 and the diaphragm 54 pot shape 55 is performed through the flipping portion 571. For maintenance it is then provided on the hood

  541 an appendix 5410 and on the merits 542 an appendix con-

  centric 5420, while in a transition zone 570 a compression occurs at a fixation of the part of

  571. In Appendix 5410 are practiced

  above the appendix 5420, radial bores which are covered by the side wall of the overturning portion 571. For the application under pressure there is further provided in this area a tubular spring 572. Above the part of 571 is disposed at least one throttling hole 53 which ensures a permanent connection between the first and the second chamber 51, 52, while the overturning portion 571 provided with the tubular spring 572,

  form, together with the radial holes 58, a

  unidirectional pope or withholding 530.

  The first chamber 51 is closed on the front side

  by the pot-shaped membrane 55, this membrane 55 comprises

  carrying a thickened central area 551 which on one side

  against the front side of the pivot 41 of the housing and on the other side constitutes a stop for a return spring 56 disposed in the cover 541. At the bottom 542 of the capsule 54 is further fixed by means of tabs to click 5423, a

  permanent magnet 50 of annular shape. This permanent magnet

  External member 50 can be manually moved axially with the capsule 54 on the pivot 41 of the housing. In Figure 2 the delay member is shown in the rest position. If now the cover 54 is pushed further on the piston 42 of the housing, then the pot-shaped membrane expels, by the thickened central zone, liquid out

  from the first chamber 51 to the second chamber 52.

  The return force of the spring 56 must then be overcome,

  while then the liquid is sent with a low

  resistance through the radial holes 58 in the

  second chamber 52, and the turning part 571 de-

  adhesive of the outer wall of the appendix 5410 against the action of the tubular spring 572. To ensure the position of the tubular spring 572, the appendix 5420 carries a support ring 5421 which respectively comprises a free space

for the turning part.

  After removal of the capsule 54 it has a position relative to the pivot 41 of the housing as shown in Figure 3. If in this position no external force acts on the capsule 54, then the capsule 54

  is pushed back by the return spring 56, through

  55 of the diaphragm 55, again in the axial position corresponding to Figure 2, relative to the pivot 41 of the housing. In this process the radial bores 58 are closed by the turning part 571 assisted by its tubular spring 572, so that over a predetermined period of time, the liquid can only flow through.

  return, being delayed, through the choke hole

53.

  The delay member 5 is in this case housed in a cup-shaped housing portion 16, in its bottom region, is screwed by screws 161 on the projecting flange 2321 of the annular piece 2320. The capsule 54 is then guided by radial tenons 545 in corresponding axial slots 162 of the housing portion 16,

  being locked in rotation but being able to move axially

  in a limited way. To allow easy assembly of the capsule 54 of the housing part 16, the axial slots 62 are open towards the end face and can after the introduction of the cap 54, be closed by an annular nut 163. To allow a convenient maneuver of the delay member 5, the capsule 54 is furthermore

AA- 2713735}

  provided with a hood grip 17 which is locked by means of

  exits on the capsule 54 and which, with a skirt 170, forms a decoration sleeve which covers the part 16 of the housing and which makes the transition to the valve body 1. The self-closing mixer has the following operating modes:

  Cold water and hot water are brought in separately

  at the bottom of the cartridge 21, through the cold water pipe 12 and the hot water pipe 13 through the valve body 1 and introduced through the tubular seals 210 in the valve seat disc 24, to arrive through the inlet opening 2312 of the mixing disc 231, into the corresponding inlet opening of the guide disc 32. Via the throttling channel 45, the water pressure arrives in the

  counterpressure chamber 412 of the pivot 41 of the housing.

  When the auxiliary valve 4 is closed, as shown in FIGS. 1 and 2, the membrane 30 is thus

  pressed on the valve seat 2323 of the main valve

  blade 3 and the outlet opening 2311 is closed.

  If now the handle 17 provided with the delay member 5 is pushed by the user against the valve body 1, then the ring-shaped external permanent magnet 50 arrives in the position shown in FIG. 3. Simultaneously, during the Depressing process, liquid is expelled from the chamber 51 into the chamber 52 and the return spring 56 is compressed. In this position, the piston 42 is raised from the plate 31 and the channel 44, by the repulsive action of the outer annular magnet 50 and the inner rod-shaped magnet 43,

  and is pushed inside the pivot 41 of the housing.

  The pressure chamber 412 is thus discharged under pressure via the channel 54 so that, henceforth,

'7 2713735

  the annular channel in communication with the inlet opening 2312, the membrane 30 provided with the

  plate 31 is raised and the main valve 3 is-

  green, so that mixed water, cold water or hot water can be delivered via the

  mixed water outlet 14 of the valve body 1.

  If now the handle 17 is released by the use

  the user, then the return spring 56 pushes the capsule 54 into the position shown in FIG. 2, being delayed by the throttling bore 53. As soon as the repulsion forces of the external magnet 50 and the internal magnet 43 predominate in the opposite direction, the piston

  42 is pushed against the seat 4 and the channel 44 of the

  auxiliary pope, so that from now on the pressure of

  the intake opening is established in the chamber of

  412 and the membrane 30 with the plate 31 press on the valve seat 2323, and the main valve 3 also closes. To obtain the necessary spring action or repulsive force of the two permanent magnets

  50, 43, the direction of the magnetic field for the magnet

  outer sleeve and the inner permanent magnet 50, 43 is

oriented in the same direction.

  For the case where the exit process must be interrupted for the period of time determined by the organ

  delay 5, the delay member 5 may simply be

  manually removed from the valve body with

  handle 17, whereby the shutdown process is immediately

started.

  You can adjust the mixing ratio or the temperature

  erature of the mixed water by a rotation of the handle 17 to-

  turn of the median axis 10. In this case the rotational movement of the handle 17 and the delay member 5 is transmitted via the radial tenons 545 to the housing portion 16, which is fixed by the screws 161 on the annular piece 2320, so that the movement of a / v 2713735 rotation of the handle 17 is transmitted immediately to

control disk 23.

  As can be seen in particular in FIG.

  by rotation around the median axis, the opening of

  mission 2312 to inlet openings 242 for cold water and 243 for hot water, arranged on an arc of

  circle of the valve seat disc 24, can be modified

  in the opposite direction, so that an increase in

  cover for one of the inlet openings causes a decrease in the corresponding overlap for the other

intake opening.

  The operating time of the delay

  5 is determined by drilling

  53. If different operating times are

  of the retarder must be adjusted, this may for example be done through a

  adjustable throttle in throttle hole 53.

Claims (12)

R E V E N D I C A T IO N S   1) Self-closing valve with   main pope is controlled by a manually operated auxiliary valve which is equipped with a delay device to delay the closing of the valve   auxiliary, while by means of a handle   be the force of a closing spring, the auxiliary valve   The valve is opened by means of at least one permanent magnet and the delay device is operated, the self-closing valve characterized in that, as the closure member of the auxiliary valve (4), it is provided in a pivot hollow housing (41) made of a non-magnetic material a piston (42) capable of   move axially and that carries a permanent magnet   dull (43), while on the housing (41) is arranged a   external permanent magnet (50) attached to the retarding device   the piston (41) of the housing, so that the piston (42) is applied in the closed position on the seat of the auxiliary valve (4) by repulsion on the part of the internal and external permanent magnets (43, 50), while in the open position the piston is pushed in the opposite direction by repulsion from the permanent magnets (43, 50).   2) Automatic closing valve according to the   claim 1, characterized in that the external permanent magnet (50) ring-shaped surrounds the pivot (41) of the housing, while the internal permanent magnet disposed on   the piston (42) is in the form of a bar, the permanent magnet   external magnet and the internal permanent magnet (50, 43) are respectively adjacent to the delay device with   the same pole, for example the South Pole.   3) Automatic closing valve according to the   Claim 1 or Claim 2, characterized in that the main valve (3) is in the form of a diaphragm valve and the pivot (41) of the housing is buttoned   concentrically by a flange (411) in the   of a diaphragm (30), while in the pivot (41) of the housing is arranged a back pressure chamber (412) for the main valve (3), and that on the diaphragm (30) in the vicinity of the counterpressure chamber (412), there is provided a plate (31), crossed, as well as the membrane (30), by a channel (44) in communication with the flow zone and capable of being closed by the piston (42) and another throttling channel (45)   communicating with the area of affluence, the mem-   brane (30) being sealingly connected to its zone of   edge, the pivot (41) of the housing in the main valve blade (3).   4) Automatic closing valve according to one   Claims 1 to 3, characterized in that the magnet   external permanent device (50) is attached to a delay device   with a fluidic retarding member (5), while: - the delay member (5) is arranged with two chambers (51, 52) for receiving the fluid in a capsule (54), - the two chambers (51) , 52) are connected via a throttle bore (53) and a check valve (530) releasing the passage from the first chamber (51) to the second chamber (52), - a portion axially displaceable of the delay member (5) is applied against the end face in projection of the pivot (41) of the housing.   5) Automatic closing valve according to the   claim 4, characterized in that the capsule (54) is   consisting of a cover (541) which can be screwed   centrally with a bottom (542), and the first centrally located chamber (51) is delimited by a diaphragm   pot shape (54) acting as a hollow piston and comprising   a thickened central zone (551) whose inner face constitutes a stop for the return spring (56) and whose outer face is applied against the pivot (41) of the housing, while the second chamber (52) is arranged in the form of an annular chamber or an annular chamber   around the first chamber (51) and is   can be modified by means of an elastic annular sleeve (57) with regard to the reception volume respectively required, while the capsule (54) is held so as to allow its limited axial displacement   on a bucket-shaped housing part (16).   6) Automatic closing valve according to the   claim 5, characterized in that the pot-shaped diaphragm (55) is integrally formed with the annular sleeve (57), while the outer edge of the annular sleeve (57) is clamped between the bottom (542 ) and the hood   (541), while the transition zone (570) of the man-   annular drop (57) to the pot-shaped membrane (55)   is clamped between the outer wall of an appendix (5410)   bung formed on the bonnet (541), and the inner wall of a tubular appendage (5420) formed on the bottom (542), and in that radial bores (58) acting as valves   (530) are provided in the wall of one of the   pendices (5410), these holes being covered by a   turning part (571) of the annular sleeve (57) to prevent backflow.   7) Self-closing valve according to the   claim 6 characterized in that in the area of the   part (71), a tubular spring is provided   (572) for application against the outer wall of the appendix (5410), while on the appendix (5420) is formed a support ring (5421) arranged at a certain   distance from the annular sleeve (57).   8) Automatic closing valve according to one   Claims 1 to 3, characterized in that the magnet A 2713735   external station (50) is connected to a clock mechanism   or other delaying device.   9) Self-closing valve according to one   Claims 1 to 8 characterized in that the valve   (3) is provided with the auxiliary valve (4) on a rotatable control disk (23), held in the valve body (1), for mixing   cold water and hot water, which determines the   output bit of the mixed water, while the ratio of   O10 mixture of cold water and hot water results from a   rotation of a handle (17) covering the disc   positive delay, and that the axial displacement of   this handle (17) controls the output of the mixed water.   ) Automatic closing valve according to the   9, characterized in that the different elements   Valve elements are collected in a cartridge housing (2) which can be put into place by the valve body (1) as a constituent unit, the external dimensions and the openings of the valve body (2).   outlet for cold water, hot water and mixed water   corresponding to those of a mixer cartridge without pope of automatic closure.   11) Self-closing valve according to the   claim 9 or claim 10, characterized in that the control disk (23) consists of a disk   mixer (231) and a guiding disc (232) held so-   lidar in rotation on it, while the guiding disk   (232) carries the main valve (3) with the valve   auxiliary device (4) and is integral in rotation with an   nut (2320) having a flange (2321) guided externally through a central bore (201) of the housing   cartridge (2) and is likely to be connected to the   bucket-shaped case (16), which on the one hand   transmits a rotational movement of the handle (7) to the disc   control (23) and on the other hand guarantees the maintenance   and the axial guidance of the delay device.   12) Self-closing valve according to one   Claims 9 to 11, characterized in that the disk   mixer (231) provided in the control disk (23)   has a central exit opening (2311) and an opening   intake (2312) disposed in the form of an annular segment on an arc of a circle, these two outlets   being made in the form of openings, while the opening   intake (2312) is likely to be connected to   the exit opening (2311) via the   main poppet and auxiliary valve (3, 4) provided in the guide disc (232), and the mixing disc   (231) is mounted on the other hand by being capable of   sealingly on a valve seat disc (24) held rotatably in the cartridge housing (2),   this disk (24) being provided with a central opening for   corresponding decision (241), and respectively of an opening   intake of cold water (242) and an opening   hot water inlet (243) arranged on an arc of   corresponding key, so that depending on the rotational position of the control disk (23) can be set a recovery in the opposite direction of the cold water inlet opening and the inlet opening of hot water (242, 243) through the inlet opening (2312), thanks to which mixed temperate water, cold water or water   may be brought to the main valve at will.   blade and the auxiliary valve (3, 4).   13) Self-closing valve according to one   Claims 4 to 12, characterized in that   throttling (53) is adjustable, so that the duration   the closing process is variable in a similar way.   dante. 14) Automatic closing valve according to one   Claims 4 to 13, characterized in that during - 2713735   the exit process, premature closure of the   self-closing pope can be obtained by a   pulling the hand on the handle (7).