FR2584147A1 - VALVE BOX ARRANGEMENT - Google Patents

Abstract

THE INVENTION CONCERNS AN ARRANGEMENT INCLUDING A MODULAR UNIT OF HOUSINGS 6 OF A SINGLE TERMINAL, IN PLASTIC MATERIAL AND IN THE SHAPE OF A BLOCK, INCLUDING A PLURALITY OF VALVE HOUSINGS 8. VALVES SUCH AS VALVE SEATS, VALVE ORGANS, ETC., SUPPLY CHANNEL 13 AND WORK CHANNELS 22, 23. CHANNELS 22, 23, 13 THROUGH UNIT 6 AND END ON ONE PART IN THE RECEPTION BORES 10 AND ON THE OTHER HAND IN THE ENVIRONMENT THROUGH OUTPUT OPENINGS 26, 27, 16. AT LEAST A NUMBER OF THE OUTPUT OPENINGS 26, 27 OF THE WORKING CHANNELS 22, 23 IS PROVIDED ON THE SAME SIDE 24 OF THE MODULAR UNIT OF ENCLOSURES 6. ON THIS SIDE 24 IS APPLIED A METAL CONNECTION PLATE 30, WHICH EXTENDS OVER THE OUTPUT OPENINGS 26, 27. IT IS EQUIPPED WITH THROUGH CONNECTION GATES 32 WITH CONNECTION THREADS AND COAXIAL THREADS ON OPENINGS INDIVIDUAL OUTPUTS 26, 27.

Description

ARRANGEMENT OF VALVE BOXES.

  The invention relates to an arrangement of several boxes.

  thirds of valve assembled into a functional unit,

  including a receiving bore for components

  valve seats such as valve seats, valve members, etc., a supply channel and at least one working channel, these channels at least partially passing through each valve housing and each opening out on the one hand in the receiving bore and other

  part in the environment, through an open

  output type to which a source can be connected

  pressurized agent or user device.

  In hydraulically or tire-operated devices

  matic or in devices that include elements

  With the components actuated by a fluid, most of the control members which consist mainly of valves are preferably assembled at the central point. This allows good monitoring and

  gives a good possibility of access, which facilitates on-

  any possible functional checks or maintenance work to be carried out. However, an attempt is made to make the arrangement of the valves as compact as possible when this centralization is used. The consequence is that as a rule there are always several valves of the same

  type which are gathered in separate groups. The sou-

  popes of a group then include valve boxes

  identical pes which are arranged in rows next to each other and whose outlet openings of their supply channels are connected to a distribution line

  common to reduce the number of supply lines.

  Despite this simplification brought to the connection of the pressurized fluid, the arrangements of valve housings of this type are relatively expensive because the housings which are

  made of metal must be manufactured and machined individually

  dual. This requires a large number of operations, and it is often necessary to have recourse to positioning and control operations. In addition, the assembly

  of the aforementioned arrangement of several support boxes

  popes takes a long time, because each individual housing

  duel must be mounted separately in the corresponding location. The realization and the assembly of the arrangement

  known are therefore very complicated and expensive.

  The object of the invention is to provide an arrangement of valve casings of the type indicated in the preamble which can be manufactured easily and economically in a few operations in a compact form and whose mounting on the site of use does not take only a short time. The above mentioned goal is achieved by the fact that

  the valve housings are made of plastic material

  that, that a plurality of valve housings is assembled

  In a modular unit of housings in one piece and in the form of a block, that at least a certain number of the outlet openings of the travzil channels are arranged on the same side of the modular unit of housings, and that a connection plate made of metal and extending over the outlet openings arranged against it extends on this common side of the housings, said plate being provided

  through connection bores with threads

  connection stages and arranged coaxially at the openings

  individual output tures. Advantageously, the agency-

  The valve housings according to the invention can be produced with a relatively small number of operations, the housing block preferably being molded and the necessary channels then being formed by drilling. But it is also possible to constitute the channels from the

  manufacturing thanks to an appropriate conformation. The operations

  machining rations of the outer walls are strongly

  reduced with the modular box unit according to the invention

  tion because in this case it is a single element

  component constituting several valve housings.

  The assembly of the modular housing unit can be

  also realized in a short time; we realize practical-

  The mounting of several valve housings by the mounting of a single component element. However, the arrangement according to the invention is very compact because the housings

  individual valves can be arranged successively-

  lie against each other. In addition, a significant saving in weight is achieved. Thanks to the implementation

  place of the metal cover plate fitted with

  wise threaded, we are also assured that even when it is necessary to screw and unscrew many times on the working channels the supply lines going to the user devices, it avoids destruction or

  damage to the threads, the latter being very resistant

  so strong and just as robust as the connecting threads

  duly known provided on the metal valve housings-

liques.

  According to an advantageous embodiment of the in-

  vention, a threaded metal insert is inserted, partly

  both from its inlet opening, into the feed channel-

  which is preferably unique and therefore linked

  sound with all receiving bores.

  Thus, the arrangement according to the invention can be provided with a supply channel leading to all the receiving bores, which means that only one

  single central outlet opening of the feed channel

  tion. Therefore, the assembly time of a pipe to

  pressurized fluid can be greatly reduced. In use

  reading the threaded insert, there is a reliable and resistant connection possibility despite the fact that

  the modular housing unit is made of plastic.

  However, the outlet opening of the supply channel can also be provided on the side of the housing which is associated with the connection plate. In this case, a separate threaded insert and the connection bore can be avoided.

  is preferably integrated into the connection plate.

  Advantageously, the connection plate is definitively connected to the modular unit of housings, for example by gluing, or is removably connected to the modular unit of housings, for example by screwing or by interlocking of the connection plate in unity

  modular housings, one or more seals being forward

  taggedly inserted between the connection plate and -

  the modular unit of enclosures in the region of openings

  outlet res and connection bores which are in

mutual bond.

  We can thus obtain, by a definitive link,

  a fixed and durable fixing between the connection plate-

  ment and the modular unit of housings, and one can then advantageously avoid having to have a joint between the two elements. This saves costs. On the other hand, a removable connection allows the connection plate to be changed if necessary. It is then possible to take account of the predetermined dimensions of the pressurized fluid lines or of the work lines to be connected from the

  fact that we can put ep connection plates

  selected that have connection bores

  different diameters. Among other things, it is even possible, in particular, to carry out, at the assembly site, the end of the manufacture of the connection plate by practicing in

  this the threaded bores which are still desired.

  According to advantageous measures of the invention, the seal which seals outwardly two outlet openings and connection bores respectively end to end

  includes two sealing sleeves with a drainage channel

  coaxial passing through them, arranged coaxially one

  relative to each other, made in one piece and

  made of a material having elastic properties similar to that of rubber, one of the sealing sleeves being able to be removably inserted into the outlet opening and the other sealing sleeve into the connecting bore, and each sealing sleeve advantageously having, on its outer periphery, an annular retaining bead which can be inserted in a retaining groove of complementary shape and provided on the inner periphery of the respective working channel or supply channel, and of the respective connection bore. In addition, advantageously, the sealing sleeves are formed integrally on both sides of a sealing strip, being arranged coaxially end to end, the sealing strip being provided with passage openings. arranged coaxially with the passageways of the sealing sleeves and the strip

  sealing comprising a plurality of pairs of man-

  sealing plugs, which are in particular arranged one after the other in the longitudinal direction of the strip and the arrangement of which corresponds to the arrangement of the outlet openings or the connecting bores to

  relate to each other. We can thus realize direct

  using the joints, assemble the modular unit

  enclosure area and connection plate. These seals then also fulfill a retaining function

  and additional fixing screws are not required

saires.

  According to another embodiment of the invention, the connection plate is mounted by being pressed into

  one of the longitudinal sides of the modular box unit

  third whose shape is notably parallelepipedic and the

  rectangular or square section, both directions longi-

  tudinal being parallel to each other and the surface

  of the connection plate which faces outwards

  laughing being connected substantially flush with the surface

  outside of the associated longitudinal side of the modular unit

  case lair. Thus, the arrangement according to the invention has particularly compact dimensions and can be produced at an advantageous price because of its

  simple geometric shape. In addition, the connecting part

  dement can be fixed in place on the modular housing unit. According to yet another embodiment of the invention, the modular unit of housings is a plastic molded part in which the plate

  connection is advantageously recessed. This provision

  lO sition is easy to perform and provides a link

  durable and safe sound between the modular unit of enclosures

  and the connection plate. This plate can be intro-

  taken from the mold in the form of a part to be embedded during the manufacture of the arrangement of the invention, and can be coated in plastic material after the end of manufacture, so as to be certain of its attachment

safe and waterproof.

  Preferably, the metal connection plate is made of steel, which is relatively inexpensive

for high strength.

  The invention will now be described in more detail with reference to the accompanying drawings in which: Figure 1 shows a first form d; execution of

  the arrangement of the invention, shown in perspective, the plate

  that connection being screwed on the modular bootmaker unit

  Figure 2 is a cross-sectional view of the agen-

  cement of Figure 1, along II-II of Figure 1; Figure 3 shows another embodiment of

  the arrangement of the invention in a similar section view

  area to that of Figure 2; Figure 4 is a plan view of a sealing strip provided with sealing sleeves, and Figure 5 is a side view of the housing which supports the connection plate, according to another embodiment of the arrangement of the invention, a connection opening for the supply channel being

  integrated in the connection plate.

  Figures 1 and 2 show a first mode of de-realization

  sation of a modular unit of boxes 6 which, in this case, constitutes four valve boxes assembled in a single piece. Naturally and because of their realization

  in one piece, these boxes can no longer be distributed

  tinged to each other, but for reasons of clarity, imaginary dividing lines have been indicated in FIG. 1 at 7, these lines dividing the modular unit of

  boxes 6 in four sections 8 which are in practice available

  suitable for constituting individual valve housings

  pes. The modular unit of housings 6 is in the form of a block constituted, in the embodiment shown, in the form of a parallelepiped, and it follows that its cross section is rectangular or square. On a longitudinal side of the unit 6, and in the embodiment present on the upper side 9, are formed receiving bores 10 whose directions

  longitudinal are at right angles to the south side

  flat top 9. Each housing section 8 is associated with a receiving bore 10; the bores are arranged one after the other in the longitudinal direction of the unit 6 and form a row of bores. Each receiving bore 10 ends in the form of a blind hole

  before reaching the lower end 11 of the unit 6.

  A through bore is also possible, and this can then advantageously be closed by a plug on the lower side 11. Each receiving bore 10 is used to house valve component elements which are not shown, such as valve seats , organs

  valves, etc .; it goes without saying that the receiving bores

  tion have appropriate internal contours, but which are not shown explicitly in the drawing for reasons of simplicity. Threaded sections 12 are formed only in the region of the upper side 9, and they allow the valve elements to be screwed into the receiving bores 10. (For reasons of clarity, the receiving bores 10 inside the unit 6 are shown in figure 1 only by

dashed lines).

  Each of the receiving bores 10 communicates with a supply channel 13 to which a

  source of pressurized fluid which is not shown.

  Advantageously, the arrangement according to the invention comprises a single supply channel 13 to which all the receiving bores 10 are connected. The supply channel 13 is formed in the modular unit of housings 6 from one of its front sides 14 and it is arranged in the longitudinal direction of the unit. So he is willing

  in a plane which simultaneously contains all the axes along

  gitudinal of the receiving bores 10. At the same time, it is arranged with respect to the receiving bores 10 so as to intersect and pass through each of these. This is the case of the embodiment of Figures 1 and 2 and the

Figure 2 shows this clearly.

  A fluid line, not shown, going to a

  pressurized fluid source can be connected to the

  exit groove 16 of the supply channel, on the front side 14. For this purpose, a metallic threaded insert 17 is inserted firmly and so as not to be able to rotate, by being glued for example, in the supply channel 13 at level of its outlet opening 16, insert in which can be

  screwed a connection piece of the fluid line.

  The advantage of the threaded insert 17 is the high resistance of its thread, the operation of which is guaranteed even after

  numerous screw connections and unscrewing of a connecting piece

dement.

  The supply channel 13 ends inside the modular housing unit 6 before reaching the front side 18 which is opposite the front side 14. The

  channel is preferably formed in the form of a

  sage blind, but there is however the possibility of providing a through channel and closing it on the side

  frontal 18. This last solution especially offers the pos-

  sibility to rationally build mo-

  very long boxes and then to

  stretch to bring them to the desired size.

  Each receiving bore 10 is, in addition, in connection with at least one, and in the embodiment shown two, working channels 22, 23 which pass through

  the modular unit of housings 6 and open into the environment

  ronation on one of its longitudinal sides. According to the invention, it is provided that at least a certain number of outlet openings of the working channels is arranged on the same side of the housing. But it is advantageous that all the working channels 23 reach on the same side

  of the housing, and according to FIG. 1, this side is the long side

  gitudinal 24 of the housing which is close to the upper side 9

  and which is arranged at right angles to the latter.

  For technical manufacturing reasons, it has been found to be particularly advantageous to arrange the working channels 22, 23 so that they are at right angles to each other.

  relative to the longitudinal side 24 and parallel to the front side-

  tal 14. Therefore, the two working channels 22, 23 which each open into a receiving bore 10 of one of the sections 8 are arranged parallel in the direction of the longitudinal axis 15 of the associated connection bore, at a certain distance from each other; so they are

located one above the other.

  Furthermore, however, the working channels which are associated with the individual receiving bores 10 are arranged in relation to one another so that both the working channels 23 which are adjacent to the upper side 9 and the working channels 22 which are neighboring, on the lower side 14 are each contained in a common plane and preferably parallel to the upper side 9 or to the lower side 11, these two planes being parallel and at a certain distance from each other. This means that the outlet openings 26, 27 of the working channels 22 or 23 which are associated with the longitudinal side 24 form

  each a row of openings 28, 29 arranged in a direction

  longitudinal section of the modular unit of housings 6 and the respective outlet openings 26 or 27 of which are arranged in succession and at a certain distance from each other

others.

  The outlet openings 26, 27 of each section 8 can be connected to a user device, for example a double-acting working cylinder. This is advantageously obtained by means of fluid lines

  under pressure which are not shown and which are

  strung to the working channels. Preferably, the binding of

  connection is made removably by screwing.

  But according to the invention, the modular unit of housings 6 is made of plastic, this means that the threading of the threaded bores formed therein has only limited resistance. Frequent weaving and unscrewing of pressurized fluid lines could therefore cause damage to the connection threads and

  lead to complete inability to use the mo-

  dular of enclosures as a whole. To avoid this

  from the start, according to the invention, provision is made for

  place on the longitudinal side 24 of the housing which has the outlet openings 26,27 a metal connection plate extending over the outlet openings 26,27 associated therewith, this plate being provided with through connection bores 32 having connection threads 31 and arranged coaxially with the individual outlet openings. The arrangement according to the invention can

  therefore be easily achieved; advantageously, the uni-

  The modular tee of housings consists of a molded plastic element, it requires only few operations, is light in weight and nevertheless includes high resistance connection threads which are not damaged, even in the case frequent screwing and unscrewing of

pressurized fluid lines.

  In the embodiment shown, the length of the connection plate 30 extends over the total length of the modular housing unit 6. The connection plate 30 is applied by one of its surfaces 33 on the longitudinal side 24, the longitudinal axes of the modular unit of housings 6 and of the plate 30 being parallel. The width of the connection plate 30, measured transversely to the longitudinal axis and in the

  direction of the longitudinal axes 15, is greater than the dis-

  tance between the working channels 22, 23 respectively neighboring sections 8, and the connection plate 30

  covers all of the outlet openings 26, 27.

  As can be seen perfectly in Figures 1 and 2, the connection bores 32 of the connection plate are arranged in an arrangement which corresponds to that of the outlet openings 26, 27 formed on the longitudinal side 24 of the housing. There are therefore also two rows 34, 35 of connection bores 32, these bores corresponding with the working channels 22, 23

  associated and formed in the housing.

  Basically, there are two possibilities of mounting the connection plate 30 on the modular housing unit 6, namely a removable manner and a definitive manner. In the latter case, the connection plate can for example be glued to the longitudinal side 24 of the unit 6. The advantage of this embodiment is that it is possible to avoid having a seal between the unit 6 and the connection plate 30 because the bonding by bonding preferably provides a gas-tight connection. Another possibility of final connection consists in the fact that the connection plate 30 can be constituted practically in the form of a part to be embedded which is inserted into the material of the housing and is at least

  partially surrounded by it. Advantageously, the

  castration takes place at the time of manufacture, the connection plate being placed in the mold and then

  coated by casting or injection.

  The advantage of a removable connection between the connection plate 30 and the modular housing unit 6 is that the connection plate can be quickly exchanged, for example when the pressurized fluid lines which are connected to it are connection manifold manias including

  the threads do not match the connecting threads

  cord 31 of the connection plate 30. By a simple

  exchange, a connection plate can be mounted on unit 6

  30 including connection bores or threads

  suitable connection letters. In any case, it is

  tagger to interpose between the connection plate 30 and the modular housing unit 6 one or more seals 36 which prevent, in the connection region between the outlet openings 26, 27 and the connection bores

  32, the leak towards the outside of the pressurized fluid

produced by canals.

  In the embodiment described with reference to FIGS. 1 and 2, the connection plate 30 is screwed onto the modular casing unit 6. For this purpose, the connection plate 30 includes mounting bores which are not shown and who are also in alignment

  with tapped bores formed in the modular unit

  enclosure strip 6 from the longitudinal side 24. At 37 are designated mounting screws which are passed through the mounting bores and screwed into corresponding threaded bores, so that the plate

  connection 30 is tightened against unit 6. Advantageous-

  The mounting screws 37 are formed in the form of hexagon socket screws driven into the face 38 of the plate which is opposite the modular unit of housings.

  As can be seen in Figure 1, it was found to be particularly

  particularly advantageous to fix the connection plate by means of four mounting screws 37 arranged in the corner regions of the surface 38 of the plate which is

  preferably rectangular. The fixing of the connection plate

  rope 30 can then be made in a particular way.

  rement advantageously when the mounting bores for the mounting screws 37 are also arranged in rows with the rows of connecting bores 34, 35. In this case, it can be achieved in the connecting plate 30 in a single operation both the connection bores 32 and the mounting bores for the mounting screws 37 while then all that remains is to provide

  the connection bores 32 of connection threads

31.

  In the embodiment of Figures 1 and 2, the seal 36 for sealing between the unit 6 and the connection plate 30 is in the form of a strip 41 provided with passage openings 42 corresponding to

  the arrangement of the outlet openings 26, 27 or of the bores

  connection wise 32. According to FIG. 2, each of the

  receiving bores 10 is therefore linked to the envi-

  on the one hand by means of a working channel 23,

  a through opening 42 and a connection bore

  32, and on the other hand a working channel 23, a

  through opening 32 and a connecting bore 32.

  The mutually cooperating working channels, through openings and connecting bores are

  coaxial with each other.

  To facilitate obtaining compact dimensions

  and a pleasant exterior appearance of the layout of the

  vention, and also to fix the connection plate

  on unit 6 in the assembled state, this connection plate

  dement 30 is pressed into the longitudinal side 24 of

  the modular unit of boxes 6 of parallelepiped shape

  dique so that the surface 38 of the plate which is facing outward is substantially flush with the adjacent outer surface 43 of the housing. To this end, a longitudinal groove 44, the section of which is shaped

  rectangular and complementary to the outside of the plate

  connection 30, is formed in the modular unit

  enclosure space 6 on its longitudinal side 24. Skinny

  the connection plate 30 Installation, the modular unit

  the enclosure housing 6 retains its parallelepiped shape, and the longitudinal axes 15 of the receiving bores 10

  are parallel to the plane of the connection plate 30.

  Another embodiment of the arrangement according to the invention will now be described in the following and with reference to FIGS. 3 to 4. This can have substantially the same shape as that described with reference to FIGS. 1 and 2,

  and only the removable connection between the connection plate-

  ment 30 and unit 6 has a different shape. In the

  embodiment of FIGS. 3 and 4, the connection plate

  cord 30 is removably fitted into the modular unit of boxes 6. Advantageously, it is possible to use

  the seal 36 itself as an interlocking means.

  As an example, we can consider by referring

  in FIG. 3, the seal 36 interposed between the working channel

  vail 23 which is adjacent to the upper side 9 and the associated connection bore 32. This seal includes two sleeves

  sealing 45, 46 of the same dimension, substantially cylindrical

  bricks and hollows, formed together in one piece and

  arranged coaxially with each other. These man-

  chons comprise a common coaxial flow channel 47 which passes through them. One of the sealing sleeves is pushed into the working channel 23 starting from the outlet opening 27, while the other sleeve is introduced

258 4 1 47

  seal 46 in the connecting bore 32 in par-

  both from the surface 48 of the plate which is turned towards it.

  The sealing sleeves 45, 46 are made of a material

  riau presenting elastic properties similar to those of rubber and allowing sealing. Advantageously, both the working channel 23 and the connecting bore 32 are provided in the region

* of the insertion of the sealing sleeve of a widened part

  gie 49 allowing this insertion. As a result, the sealing sleeves may have a larger outside diameter than that of the channels or bores to be connected, while the flow channel 47 may have a diameter which is identical to that of the working channel and the bore of

  connection. This ensures an unobtrusive flow

tackling fluid under pressure.

  It is intended that each of the sealing sleeves 45 46 comprises on its outer periphery a retaining bead 50 of annular shape which can be introduced into a retaining groove 51 of complementary shape and provided

  on the inner periphery of the enlarged part of the box

  respectively 49 of the working channel 22, 23 and the

  connection fittings 32. The retaining flange 50 and the retaining groove 51 are arranged with respect to each other so that they collaborate only when the sealing sleeves are fully inserted into the parts

associated enlargements 49.

  Each working channel and each connection bore

  dementially constituting a pair are then connected to each other by the seal 36 described with reference to FIG. 3, and one is therefore assured of the tightness of the path followed by the flow and also of a resistant fixing between unit 6 and the connection plate 30. Even when high pressure is applied to the individual channels, the connection plate 30 does not lift from the unit 6, and a reliable connection by shape correspondence is ensured between the beads retaining and retaining grooves. To rationalize the mounting of the seals 36, it is advantageous to connect several seals to each other, as shown in FIG. 4. The individual sealing sleeves 45, 46 are then made in one piece and coaxially face to face on both sides of a

  sealing strip 52 which is also visible at the

  Figure 3, this strip having coaxial with the flow channels 47 associated passage openings 53. The sealing strip extends in the longitudinal direction of the

  rows 34, 35; the pairs of sealing sleeves

  pectively superimposed are arranged on it at a certain

  close distance from each other in longitudinal direction

  nale of the strip, this distance corresponding to that of

  individual connecting bores of a row of bores

  ges 34, 35. In this case, it is advantageous to constitute in the surface 48 of the plate complementary longitudinal grooves of the sealing strips, so that these strips are fitted, are applied against the connection plate 30 and ensure that the surface 48 of the plate can be placed against the surface of the unit 6 which is

turned towards her.

  It goes without saying that the seals 36 can also be assembled according to different arrangements, and in the present embodiment it is possible to connect one to the other and in one piece two sealing strips 52 so that all the necessary sealing sleeves are connected in one piece to each other (this

not being shown).

  In FIG. 5, another embodiment is shown.

  tion of the arrangement of the invention in which the supply channel 13 is disposed in the housing so that its outlet opening 16 is located on the side 24 of the housing comprising the outlet openings 26, 27 of the working channels . In this case, the outlet opening 16 of the supply channel is also covered by the connection plate 30 in which is provided another through connection hole 54 arranged coaxially with the outlet opening 16 of the supply channel. In this form of construction, a separate threaded insert can be avoided in the outlet opening 16 because the connection bore 54 includes a connection thread. he

  It goes without saying that the type of seal between the connection bore

  string 54 and the supply channel 13 is the same as that used for the connection between the

  working and connecting bores 32.

  According to the use of the arrangement of the invention, it is also possible to provide outlet openings on several sides of the modular housing unit 6, a connection plate 30 (not shown) being associated

  to each of these sides of the housing. This is especially before-

  geux when the respective sections 8 represent

  multi-way valves which include a large number

  carrying supply and output lines. In the embodiment of Figure 1, the individual sections

  8 may in particular constitute housings for supports

4/2 way popes.

  it goes without saying that each receiving bore 11 is

  in connection with an air duct 55, in the case where this

  this is not integrated in the valve elements

  install in the receiving bores. Each ventilation channel can be connected to a particular or common silencer, or can be connected to multiple connections which

  direct exhaust air to desired locations.

  Note that in the arrangement of the invention, the

  form of the modular unit of boxes 6 is not natural-

  not limited to the embodiment of parallel form

  epipedic, and that any type of construction in which a connection plate can be fixed, for example in

  subsequently constituting an appropriate groove, is pos-

  sible. The embodiment shown has however proved to be particularly advantageous because it is very compact. The arrangement of the invention in practice represents a set of several valve housings, four in number in the example shown, which are connected

  to each other, have substantially a parallelepiped shape

  dique or cubic, and are arranged in a row against each other

others.

  A particular advantage of the invention consists in the fact that by producing a single assembly, it is possible in practice to obtain a plurality of valve housings, the

  manufacturing would necessarily be significantly more cost-

  and would require a lot more work. Like unity

  is made of plastic, we can give the

  course of the channels located inside any shape corresponding to the needs. The unit according to the invention can be produced in the form of a molded element, the channels, openings and bores being already envisaged and formed before the molding operation, which means that the operations

  are limited to a minimum. The mounting of the a-

  arrangement of the invention can also be realized sensi-

  blame faster on the site of its use, because mounting the unit according to the invention replaces mounting

  individual of several valve housings.

  Advantageously, the individual connection bores

  dual 32 or the individual threads 31 of the connection plate 30 may have different diameters or types of threads, which makes it possible to

  install pressurized fluid lines with pressure sleeve

  waterproofing of different dimensions on the modular unit

of boxes 6.

  Advantageously and according to an embodiment not shown of the invention, each of the working channels can

  be dubbed, one of these double working channels open

  edge on one side of the case and the other on the other side

  of the housing. A connection plate with connecting bolts

  cord is then associated with each side of the case,

  the connecting bores of the two connection plates

  dement having different diameters and types of threads, but the connecting bores of each of the two individual plates, however, having the same diameter or the same type of thread. Depending on which one

  uses either of the double connection bores

  the other corresponding bore, or a connecting bore, is closed by a plug or the like. We

  then has the advantage of being able to equip the mo-

  dular of housings, for a rational production,

  of different standardized threads (for example,

  NPT or BSP tages (i.e. tapered or standard threads), which means that expensive manufacturing on both sides of the valves can be avoided, and in addition, no confusion between valve housings with threads

  different types are not possible during a delivery,

  that each modular unit of enclosures includes possibilities

  connection capacities for the two standard threads.

  These confusions also lead to difficulties for

valve storage.

Claims (16)

- CLAIMS -   1. Arrangement of several flush valve housings   seemingly as a functional unit, comprising a receiving bore for valve component parts such as valve seats, valve members, etc.   a supply channel and at least one working channel.   These channels at least partially passing through each box   valve tier and each opening on the one hand into the   reception wise and secondly into the environment via an outlet opening to which can   be connected to a source of pressurized agent or a   positive user, characterized in that the valve housings (8) are made of plastic, in that a plurality of valve housings (8) are assembled in a modular unit of one-piece and shaped housings block (6), in that at least a number of outlet openings (26, 27) of the working channels (22, 23) are arranged on the same side (24) of the unit   modular housing (6), and in that a connection plate   cord (30) made of metal and extending over the outlet openings (26, 27) arranged against it extends over this common side (24) of the housings, the plate being provided with through connection bores (32) having connecting threads (31) and arranged coaxially with   individual outlet openings (26, 27).   2. Arrangement according to claim 1, characterized in that a threaded metal insert (17) is inserted, starting from its inlet opening (16), in the feed channel (13) which is preferably single and of this   made in conjunction with all the receiving bores (10).   3. Arrangement according to claim 1, characterized   in that the single outlet opening (16) which is associated   attached to the supply channel (13) in connection with all the receiving bores (10) is arranged on the side (24) of the modular housing unit (6) comprising the outlet openings (26, 27) of the channels working (22, 23) and is advantageously also covered by the connection plate (30), this connection plate (30) comprising a through connection bore (54) arranged coaxially with the outlet opening (16) of the channel power supply.   4. Arrangement according to any one of the claims.   1 to 3, characterized in that the connection plate   ment (30) is permanently connected to the modular unit   enclosure (6), for example by gluing, or is removably connected to the modular unit of enclosures (6), for example screwing (37) or by fitting the   connection plate (30) in the modular box unit   third (6), one or more seals (36) being advantageously inserted between the connection plate (30) and the modular housing unit (6) in the region of the outlet openings (26, 27, 16) and the bores connection (32, 34) which are in mutual contact.   5. Arrangement according to claim 4, characterized in that the seal (36), which seals outwards   two outlet openings (16, 26, 27) and connection bores   cord (54, 32) respectively end to end comprises   two sealing sleeves (45, 46) with a drainage channel   lement coaxial (47) which passes through them, arranged coaxially with respect to each other, made in one piece and   made of a material with elastic properties   similar to rubber, one of the sealing sleeves (45) can be removably inserted into the outlet opening (26, 27, 16) and the other sealing sleeve (46) in the '' connection bore (32, 54),   and each sealing sleeve (45,46) having advantageously-   On its outer periphery, an annular retaining bead (50) which can be inserted into a retaining groove (51) of complementary shape and provided on the inner periphery of the working channel (22,23) or of the channel. respective supply (13) and bore respective connection (32,54).   6. Arrangement according to claim 3, characterized in that the sealing sleeves (45, 46) are formed integrally on both sides of a sealing strip (52), being arranged coaxially end to end,   the sealing strip (52) being provided with passage openings   sage (53) arranged coaxially with the passage channels (47) of the sealing sleeves (45, 46) and the sealing strip   (52) comprising a plurality of pairs of sealing sleeves   which are arranged one after the other   others in the longitudinal direction of the strip and whose agen-   cement corresponds to the arrangement of outlet openings (16, 26, 27) or connection bores (32, 54) to relate to each other.   7. Arrangement according to any one of the claims.   1 to 6, characterized in that the connection plate   ment (30) is mounted by being pressed into one of the longitudinal sides (24) of the modular housing unit (6)   whose shape is notably parallelepipedic and the sec-   rectangular or square, both directions longitu-   dinales being parallel to each other and the surface (38) of the connection plate (30) which faces   the outside being connected substantially flush with the surface   outer face (43) of the associated longitudinal side (24) of   the modular housing unit (6).   8. Arrangement according to claim 7, characterized in that the connection plate (30) comprises two rows (34,35) of connection bores (32) arranged   one after the other, oriented in a long direction   gitudinal of the connection plate (30), parallel and   at a certain distance from each other, which corresponds   tooth with associated channels (22,23,13) formed in   the modular housing unit (6).   9. Arrangement according to claim 7 or 8, characterized in that the supply channel (13) opens onto one of the front sides (14) of the modular unit of housings   (6) and crosses the unit (6) in its longitudinal direction   by connecting the receiving bores to each other (10).   10. Arrangement according to claim 9, characterized in that the receiving bores (10) are formed in the modular unit of housings (6) starting from a longitudinal side (9) of the modular unit of housings (6 ) which is adjacent to the longitudinal side (24) supporting the connection plate (30) and are arranged one after the other in the longitudinal direction so that their longitudinal direction (15) is parallel to the plane of the connection plate (30).   11. Arrangement according to any one of the claims.   1 to 10, characterized in that the modular housing unit (6) is a molded plastic part in which the connection plate is advantageously embedded.   12. Arrangement according to any one of the claims.   1 to 11, characterized in that exit openings   tie are formed on more than one side of the unit   modular boxes (6), which are connected to the plate   than connection associated with the respective side of the housing.   13. Arrangement according to any one of the claims.   1 to 12, characterized in that the modular box unit (6) represents a set of four valve boxes (8) connected in one piece to each other, substantially of rectangular or cubic shape and   arranged in a row against each other.   14. Arrangement according to any one of the claims.   tions 1 to 13, characterized in that each of the receiving bores (10) is connected to an air channel (55) which passes through the modular unit of boxes (6) and opens into the environment, each channel d ventilation (55) capable   be connected, in particular to its outlet opening, to a   lencieux or with multiple connections.   15. Arrangement according to any one of the claims.   1 to 14, characterized in that the bore holes   cord (32) of the connection plate (30), or their connection threads (31), have diameters   different for their bores or threads.   16. Arrangement according to any one of the claims   cations 12 to 15, characterized in that the connection bores (32) or the connection threads (31) contained in a connection plate (30) have the same   diameter and connecting bores (32) or threads   connection stages (31) of at least two connection plates   cord (30) of a modular unit of boxes (6) have different diameters.