DE2108769A1 - Apparatus for producing pneumatic logic circuits - Google Patents

Description

Dipi.-ing. Leinv / obsr

Dipl.-Ing. ΖΐΓΡ.Π13ΠΤ13ηη

Munich 2, Rosental 7,
JR / U / C Part. 2 60 39 89
F 5898-136 2108769

K Feb

COMPAGNIE PARISIEOTiE D OUTILLAGE A AIR COMPEIME ' 11 Ms, rue Roquepine, PARIS (8), France

DEVICE FOR PRODUCING PNEUMATIC LOGICAL

CIRCUITS

The invention relates to devices for manufacturing pneumatic logic circuits »

Such circuits have so far been produced with the help of individual components, each for implementation were designed for a specific function and by means of flexible cables - according to the circuit diagram of the Circuits - were interconnected. This greatly complicated the "wiring" and made It is impossible to check the circuit diagram without following the course of the numerous connecting lines. The devices obtained in this way also have large dimensions

The invention relates to devices

20M31 / 0U5 ./.

aur making jmeumaticep logic circuits that do not have these disadvantages, but on the contrary have numerous advantages described below.

These devices are essentially

characterized in that they are three types of bloek-shaped Have components that are arranged directly by side by side Can be interconnected, i.e. they consist of building blocks called elements that are all the same Have basic construction, however, to accommodate optionally depending on the logical function assigned to them selected components are designed, also from connection blocks called elements, which are provided between the building blocks and also all have the same basic construction and are designed in such a way that they have at least one Can accommodate inner component in such a way that between adjacent Building blocks and, if necessary, the exterior, any connection scheme can be established, as well as from fastening blocks called elements, which are each at one end of the assembly of the other Elements resulting arrangement are located and are used to attach this arrangement to a carrier.

Each component is designed as a block, which consists of two symmetrical housing halves, which on are fastened together in any way and have connectors for the adjacent blocks.

20SS31 / 044B

Fig. 1 is an overall view showing each one of mentioned components of the three types illustrated by their Assemble in the appropriate number any "any logical" Circuit, such as the one in Pig. 2 shown can be achieved.

In Fig. 1, 1 designates a module which consists of the two symmetrical housing halves 1 * and 1 ^lf , which are arranged together by welding or gluing. This block, like the blocks of the other types puf of the front face 1 ^{f, has} a socket opening 2 and a socket plug opening 3, which are used to establish the connection between this block and the adjacent block, as will be described in detail below. The other housing half, which is symmetrical to the housing half 1 *, has a socket opening 2 *, specifically in the

K extension of the jack plug opening 3 of the housing half 1 ', as well as a jack plug opening 3' in the extension of the housing half Steckbuchsen'offnung 1 ^f j the parts 2 and 3 * ¹ are not illustrated in FIGS..

The block 1 also has a lateral

Recess 4, which is intended to receive the components, which the block to execute the logic assigned to it Make the function suitable and which are described below. On the side opposite the recess 4 If the block has a recess, not shown in the figure, which is used for receiving the end of a flexible

209831/0445 " ^Λ

Fluid supply or discharge line is used, which with the help of a is attached through the upper opening 5 accessible screw device. Finally, there is an upper opening 6, which can optionally serve to accommodate a printed piece.

The block is attached to a rail 7, on which the function to be performed by it is symbolically represented is.

The connection block is denoted by 8; it also consists of two housing halves 8 ^f and 8 ^fl , which are connected to one another by welding or gluing. Furthermore, it has the same lateral and upper openings as the building block sheet 1 and a recess for receiving a housing 9, through the angular position of which the connections between the recesses can be changed, as will be described below.

As on the building block, a rail 10 is also arranged on the connection block, which the Symbolically represents connection scheme.

By means of these individual rails, which are next to each other after the blocks have been connected, the upper side of the arrangement of the blocks achieved the representation of the complete circuit diagram of the device manufactured (Fig. 2). In this way, the correspondence of the circuit diagram with the desired circuit diagram can be checked at any time,

209831/0448

it is sufficient to draw this on a break and place it on the block arrangement. This possibility is with the devices manufactured according to the previous technology are not possible.

The individual parts mentioned can be arranged in one or the other of two opposite positions so that they are accessible on the desired page.

The fastening block at the end of the arrangement bears the number 11. With this all other Blocks can be attached to a rack or any frame.

Fig. 3 shows an enlarged scale

Section through a housing half of a building block.

\ ^l ~ ~ i This consists of a body 1 'in which

a first row of recesses and axial channels 12, 13 and 14 are provided, through which a flexible fluid supply line 31 is passed in a sealed manner ι it also has a second row of recesses 15, 16 and 17, the axis of which in relation to that of the first Series of recesses and channels extends vertically and are intended to receive fastening parts of the flexible conduit, as will be described in detail below (Figs. 3, 4, 5).

The recesses and axial lines 12, 13 and

209S31 / 044S

14 are through a series of recesses 18, 19 and 20 extended, which are intended to accommodate components, with the help of which the block in question is assigned to it can perform logical puncture and which is explained below with reference to examples (Fig. 3, 4, 5).

The recess 20 ends in a component 21,

which is used to receive a plug when the relevant components are accommodated in the recesses 18, 19 and 20.

The recess 14 is connected to a recess 23 via an inner line 22, which extends up to the top of the block is sufficient and, if necessary, serves to accommodate a pressure piece.

The recesses 18 and 19 are connected via a line 24 to a recess 25 which extends up to The underside of the block is sufficient and is intended to accommodate an automatic discharge valve described below.

The recess 25 is moreover an inner line 27 with one on a side surface of the recess existing opening used to connect the latter with an adjacent connecting block, as described below (Fig. 12).

The recess 20 is also connected via an inner line 29 to a second opening 30, which is also serves to connect the recess with the adjacent connection block.

209 & 31 / 0U5 ^J%

The entire block consists of two such symmetrical structures, which are placed next to each other and are welded to one another, preferably by ultrasound, after the components are welded in them .have been accommodated that enable them to determine certain perform logical functions and which are described below. On the opposite, with each other Areas to be welded are provided with ribs, specifically at the points that are to be sealed, in order to ensure that each ver f to prevent binding between the recesses and lines that must not be directly connected to each other.

With reference to FIGS. 4, 5 and 6, an exemplary embodiment is used to describe how the block illustrated in FIG. 3 can be equipped to carry out various logical functions. Fig. 4 relates to the manufacture of an OR circuit, and Figs. 5 and 6, respectively, relate to the manufacture of an AND circuit and a NEVER-NOR circuit, respectively. i

In each of these exemplary embodiments, a tube or leads into the recesses 12, 13 and 14 (FIG. 4) Hose for supplying a fluid, the pipe or the hose in the recess 15 between a bracket 32 and .A shell 33 is clamped, the one in the recesses 16 and 17 attached screw 34 holds. Such a clamping device forms the subject of the by the applicant on 6, November 1970 under the title "Clamping device for one

209031/0445

cylindrical elastic body "deposited under No. 7 040 025 French patent specification "

Outside the clamping device, the end of the tube 31 reaches one which is accommodated in the recess 18 Disc, which holds an O-ring seal 26, for example, which is accommodated in the recess 14 and pulled onto the tube 31 is. Thanks to this arrangement, the definition of the Hohrs on the one hand and its tight connection with the take place Remaining part of the device on the other hand in a separate way by different components that have no effect on each other exercise.

Furthermore, in each of the three exemplary embodiments described, the outer axial recess 21 is also included closed by a welded stopper 37.

The OR circuit illustrated in FIG. 4 has the following parts?

- A first valve seat 38 in the upper recess I8j

- A disc-shaped valve 39, which on its circumference a certain number of at regular intervals arranged protrusions 40, and is arranged in the recess 19;

- A second valve seat identical to the valve seat 38 38 * in the lower recess, which is held by a part 41 which has the shape of a spacer between the valve seat 38 'and the plug 37 and that with

209831 / 044S

ν- an opening 42 for connection to the line 29

is provided.

The operation of this device is as follows;

The first input of the OR circuit consists of the line 31> the second input from line 29 and the output from line 24

When the fluid flows in through the first opening (line 31), it reaches the outlet line immediately 24; If the fluid flows in through the second opening 29, it then lifts the valve 39 and flows between the projections 40 of the valve and arrives at outlet 24.

So it only needs one of the

two openings 31 or 29 are supplied so that the flow of the fluid at the outlet 24 is guaranteed.

The device according to FIG. 5 for producing an AND circuit has the following parts;

- A first valve seat 43 in the upper recess 18, which is assigned to a first valve 29, which is the one 4, this valve seat is aligned in such a way that the valve is directly located opposite the exit of line 31;

- A second valve seat 43 * in the lower recess 20, which corresponds to the valve seat 43 and is assigned to a second valve 39 *, which corresponds to the valve 39,

209 * 31/0446

however, in, on the first, consisted of valve seat 43 and valve 39 existing. Disorder is reversed; this second valve seat 43 'is held in recess 20 by a part which is connected to the corresponding part in Pig. 4th is identical j

- A spacer 44 in the form of a cylindrical part provided with longitudinal grooves 45, which lies between the valves 39 and 39 ^f .

This device works as follows:

If the fluid only flows through the first inlet 31, it presses the valve 39 against the valve seat 43 » so that it cannot get to exit 24.

If the fluid flows in only through the second inlet 29, then it presses the valve 39 * against its seat 43 ', and it cannot get to exit 24.

However, if the fluid flows simultaneously through the two inlets 31 and 29, it reaches the outlet 24 because both valves are in the open position. However, even if one or the other valve were closed, the supply of the outlet 24 with fluid would be guaranteed. Namely, when the valve 39 is closed, it pushes the spacer 44, the valve 39 * from its valve seat 43 ¹ "and the flowing out of 29 fluid can the output 24 * ^f of the valve 39 through the spaces between the VorsprUngen 40 and through the grooves 45 of spacer 44

If, on the other hand, the valve 39 'is closed, it stops in the same way the valve 39 is in the open position, and the fluid passes from 31 to 24 through the interstices the protrusions 40 of 39 and the grooves 45 of 44.

Referring to Figure 6, it will now be described how the block is used to perform the NEVER-NOR function i.e. to ensure the transfer of the fluid from the first inlet to the outlet, if none at all Fluid is given to the second inlet and vice versa to prevent fluid from flowing from the first inlet to the outlet flows when fluid is fed to the second inlet.

For this purpose, the block has the following parts

- a valve set 38, similar to that illustrated in Fig. 4, in the upper recess 18 j

a valve 39 'similar to that illustrated in Figure 4, in the recess 19;

- A second valve seat 46 in the lower recess 20, which is held by a plug 37. This valve seat 46 is penetrated by an upper axial line 47 and has a lower axial recess 48. In the latter is located there is a piston 49 with an O-ring seal 50 which is supported on the wall of the recess. In the line 47 is

• a grooved spacer 51, similar to the spacer 44 according to FIG. 5, housed in a freely movable manner;

- A line 51 is in the wall of the recess and in the valve

Ay ₁ J Xi.l.

Seat 46 is provided so that the recess 47 is in communication with the surrounding air.

20Ö831 / 0A45

The operation of this device is as follows:

The fluid flows continuously to the first inlet; if there is no pressure on the second input 29, leads the fluid coming from 31 descends valve 39 and arrives so to output line 24.

If, on the other hand, the fluid is passed to the second inlet, it feeds the piston 49 and thus the valve 39 above, against the pressure that the valve 31 exerts on the other side of the valve, because the cross section of the Recess 48 is larger than that of line 31 · That Fluid can no longer get from 31 to 24. The fluid remaining in the recess 48 above the piston 49 is over the line 52 discharged.

When the two halves of the housing that form a block are equipped with the parts that are required to carry out a specific logical function they are both arranged together and welded, for example by ultrasound, if they are made of plastic; then the component obtained is provided with a sign on which the function performed by it is symbolically represented.

The OR, AND or EITHER-OR circuit blocks described by way of example can also be used in the manner be equipped so that they can be used as storage or delay elements to serve.

209831/0445

The description follows with reference to FIG. 7 Ms 9 the structure of connection and connection blocks between the components described can be provided for the production of any circuits equipped with these components.

These connecting parts consist of two symmetrical housing halves with the same dimensions how they have the housings of the building block blocks and how they interact with one another be welded or glued.

Each housing half consists of a part 53 »53 * i which has a number of recesses and lines 54

are equipped, which to accommodate a flexible line 31 according to FIGS. 4, 5 and 6, a cavity 55 receiving a pressure piece or a plug.

The part 53 also has a socket opening 56 for connecting a socket plug opening 28 of an adjacent block according to FIG. 3 and a socket plug opening 57 for connection to a socket opening a 30 of the same block. The other half of the housing, which is to be connected to one half of the housing by welding or gluing, has a socket opening 56 'which receives a socket opening 57 of the first half of the housing and a socket opening 57' which is connected to the socket opening 56 of the first half of the housing . The various socket openings can be closed with a plug if they are not in contact with the surrounding air

209031/0445

Should connect. The connection of the various parts is described in detail below.

The part 53 has a cavity 58 which

I- '■ · »■' on the one hand via lines 59 and 60 with the openings 56 and

57 and on the other hand via a line 61 with the recesses 54 and 55 is connected. This cavity is used to accommodate a Dreiwegegeh'äuses, which is in one of four angular positions can be arranged. The connection diagram of the component is corresponding to the selected position of this three-way housing certainly. As soon as this housing has been accommodated in the cavities of the two housing halves, both will be together welded; the whole is then provided with a label to identify the circuit diagram produced.

8 and 9 illustrate in detail the structure of the three-way housing and the definition between the two housing halves 8 ^f and 8 * *, which form the connecting part.

The three-way housing denoted by 9 consists of an easily compressible material. It is as cylindrical body formed by three radial channels is penetrated, which are offset from one another by 90 ° and which are connected to one another and up to designated 64 Point on the circumference of the cylindrical body. A fourth elevation has no line opening. The edges of the elevations have a convex profile in the longitudinal direction, as illustrated in the figures

209831/0445

is, so that between two adjacent elevations there are angular cavities 65 and 65 '.

An arrow 66, the three branches of which point in the directions of the three respective openings 63, 63 * and 63 ″, is applied in a suitable manner, for example by casting, to the respective lower part of the three-way housing in order to be able to use it from the outside - namely after assembly the two housing halves - the angular position of Lreiwegegehäuses g and therefore also to illustrate the connection scheme produced.

^{The housing halves 8 'and 8 fl} , which are partially illustrated in section in FIG. 9, have a shape similar to the three-way housing on the circumference of their cavity 58 and 58', ie they have four convave areas 61 and 67 'which are connected to one another by projections 68 and 68 'are connected.

When the three-way case between the two

Housing halves is arranged, the convex parts are located in the concave parts of the cavities 58 and 58 ', and the λ projections 68 and 68' of the cavities engage in the angular cavities 65 and 65 * of the three-way housing. Thus, the angular position of the device is perfectly guaranteed.

On the other hand receive profiles of ER _r 'heightening 64 and the recesses 58 a shape such that when the two housing halves are pressed together, the projections 68 and 68' 65 and 65 'press the three-way housing at the locations of the recesses whereby the tightness

2Q9831 / 0U6

between the three-way housing and the housing halves outside the sealing plane of the latter and between the lines 63 is guaranteed. The concave parts 67 and 67 * of the recesses 58 and 58 'are, however, designed in such a way that that they do not flatten the convex portions 64 of the device; In this way there is no risk of squeezing

of the lines 63 avoided.

Fig. 10 illustrates various connection circuits that occur depending on the position of the three-way housing of the connecting block and the position of the plug closing its openings can be achieved. In In this figure, an empty circle means that the opening in question is not closed, while a full circle indicates that the opening is closed.

Figure 10 illustrates seven positions of the three-way housing and plugs, labeled a through g are. Practice has shown that all common circuit diagrams can be produced with seven arrangements can be.

The arrangement a allows the production of the circuit a, the connection block being designed in such a way that the input (or output) direction z is reversed between two adjacent blocks N and N ¹ ; As can be seen, the left output of block N is actually in connection with the right output of block N ¹ .

209831/0445

The arrangement Td is such that the inversion is in the opposite direction, i.e. the right exit of N is connected to the left output of N '.

With the arrangement c is a connection of the left outputs of N and IT ¹ with each other and with the

Opening 53 of the connection block achieved, but without connection to the right exits.

The arrangement d establishes the direct connection between the left exits of the two blocks, but without a connection to port 53 or to the right outlets.

The arrangement e ensures the connection between the right outputs of N and N * with each other as well as with the opening 53.

Fig. 11 illustrates the automatic drain valve, that - as explained above - is in the recess 35 of the blocks (Fig. 3). This arrangement consists of two valve seats 69 and 70 and the actual valve 71.

The first valve seat 69 »which is on the

Located at the bottom of the cavity, has in its upper part an axial duct 72 which communicates with the duct 24 of the block stands, and in its lower part an opening 73, which is in communication with the line 27 which is connected to the output of the block. The second valve seat is

209831/0445

welded to the entrance of the recess 25 and has a Axial line 74, which leads to the outside. The actual valve 71 is made of a relatively rigid elastomer mounted between these two valve seats. Its upper side acts with the first valve 69 and its lower side

s ··

with the second valve 70 together. It also shows a side arranged annular edge piece 75, which with the Side wall of the first valve 69 cooperates

The operation of this device is as follows;

In rühes telltmg, ie when no pressure is exerted, the edge piece 75 is supported on the wall 6? ab »When a pressurized fluid is fed through the opening 27, which is normally assigned to the outlet, the pressure acts on the bottom of the groove 76, which is delimited by the Äandstttck 75, whereby the valve 71 is guided upwards, so that ₍ The line 72 of the first valve seat 69 is closed and the line 74 of the second valve seat is opened. The fluid flowing out of 27 does not get into the line 24, but is discharged through the line 74 to the outside. At the same time, this prevents Edge piece 75 pressed by the pressure against the inner wall of the first valve seat 69 each connection between the line 24 and the outside. Under these circumstances, the valve acts as a check valve.

However, it still serves a different purpose. if Pressure is exerted on 24, it can only be transferred to 27

209831/0445 /

if it is of sufficient value to push the part 75 aside. This means that the output of the Blocks only a signal with a steep front is given, which is more effective on the organs to be controlled than a stepwise signal applied signal.

Pig. Figure 12 illustrates an apparatus for assembling two adjacent blocks. A housing half of a first component is denoted therein by 77 and the two welded housing halves for producing a second component are denoted by 78 and 79 i.

According to the invention, the housing half 78

a round opening, ie a socket opening, around which a ring of elastic ribs 80 with rounded edges is arranged, which end in outer projections 81 with inclined wall 82. On the other hand, the housing half 77 with a round opening, that a plug socket opening is provided, the narrowed entrance is surrounded by a circular edge on we i- g send collar 83, whose inner wall 84 is inclined at the same angle as the wall 82 of the housing half 78th Of the

Inside diameter of part 83 and the outside diameter of the

Hi " ¹ ^ kV

Ring piece 80 is dimensioned such that the ring piece 80 of the Socket plug opening by bringing its ribs together in the Steckbuchsen'offnung can be inserted so that the

Projections 81 of the ribs in the wide part of the socket opening penetrate at the rear end of the collar 83. The ribs 8O diverge as a result of their elasticity, and

209831 / Q445

its inclined wall 82 lies on the inclined wall 84 of the socket opening. In this way the locking is the two housing halves 77 and 78 guaranteed.

However, this mechanical arrangement is not tight; their tightness must therefore be guaranteed differently «

For this purpose, an annular seal 85 is inserted into the housing half 78 and a sleeve 86 is inserted into the housing half 79, one end of the sleeve penetrating the housing half 78 and holding the gasket 85; then the two halves of the case welded together, the sleeve 86 of both is enclosed.

In addition, a 77 is in the housing half first part, a sleeve 87, one end of which is in

the ¹ * seal 85 is pressed in. When the other housing half is welded onto the housing half 77, the sleeve 87 is enclosed by both, and the seal 85 ensures the tightness between the two halves.

If no connection is established between the two parts, but rather it is to be interrupted, a Plug 89 is provided between the sleeve 86 and the seal 85.

209831/0445

Claims (1)

-SM * PATENT CLAIMS Apparatuses for making pneumatic logic circuits, characterized in that they comprise three kinds of block-shaped components which can be connected by ITebeneinanderanordnung directly to one another, ie they consist of modules mentioned elements (.1), the j all of the same basic design have, However, they are designed to accommodate components selected as a function of their assigned logical function, furthermore elements (8) called connection blocks, which are provided between the building blocks and also all have the same basic construction and are designed so that they have at least one internal component (9) in such a way that any connection scheme can be established between adjoining building blocks and, if necessary, the exterior, as well as elements (11) called fastening blocks, which are each at one end of the arrangement created by the assembly of the other elements and serve to fix this arrangement on a carrier 2 devices according to claim 1, characterized in that the blocks consist of two symmetrical housing halves arranged one against the other and are connected to each other after the respective internal components have been housed in them are. 209831/0445 3. Devices according to claim 2, characterized in that the housing halves from Are made of plastic and are welded together by ultrasound. 4. Devices according to claim 1, dadurcli marked t that the blocks are laid out are that they can be provided with labels indicating the punctures they have made or the symbolically represent the connection established by them. 5 · Devices according to claim 1, characterized marked that the blocks have a female connector opening. (3) and a socket opening (2), which by pressing on a socket opening or » a female connector opening of the adjacent blocks can be connected. 6. Devices according to claims 1 and 5, characterized in that the socket plug opening of a block and the socket opening of the Adjacent blocks are assigned a ring seal (85), which ensures the tightness of the connection between these blocks guaranteed regardless of their mechanical connection. 7 »Devices according to claim 1, characterized in that the blocks for the purpose of their connection with a flexible or rigid outer line (31) oine Have recess (15) into which the line is inserted 209831/0445 is, the recess on the one hand a known clamping device for the line and on the other hand a ring seal (26), which ensures the tightness regardless of the clamping device, 8. Devices with block-shaped components according to claim 1, characterized in that it is in the fluid line in front of the outlet opening of the Blocks have an automatic discharge valve (71), which serve as a check valve for the fluid and at the same time represent a threshold pressure device. 9 · Devices according to claim 1, characterized characterized in that they are each provided with an opening (6) for receiving a pressure piece are determined » 10. Devices with block-shaped components according to claim 1, characterized in that they have three coaxially arranged recesses, i.e., an upper recess (18) to which a flexible fluid supply line is connected and which represents a first input, the lower part of this upper recess with connected to the outlet opening (25) of the block-shaped component is, a recess (19) arranged between them and a lower recess (20), the lower part of which has an opening (21) is connected, which forms the second input of the block-shaped component. 209831/0445 11. Devices with block-shaped components according to claim 10, characterized in that that to produce an OR circuit, the recess (19) has a valve (39, the circumference of which is grooved in the longitudinal direction and that is between two valve seats (38 »38 ') can move freely with an axial line, each of which is housed in two further recesses (18, 20), 12. Devices with block-shaped components according to claim 10, characterized in that the upper recess to produce an AND circuit (18) has a first valve seat (43) with an axial line, which cooperates with a first valve (39), the circumference of which is grooved in the longitudinal direction and at the outlet of a flexible line (31) is provided, the lower recess (20) having a second valve seat (43 ') with an axial line has, which is provided in the opposite direction with respect to the first valve seat and with a second valve (39 *) cooperates, which grooves on the circumference having in the longitudinal direction, while a spacer (44) with is arranged in the longitudinal direction on the circumference ribs freely movable between the two valves. 13 · Devices with block-shaped components according to claim 10, characterized in that that for making a WED ^ R-NOCH circuit the above Recess (18) has a VentilsiSz (38), the recess (19) is dismantled with a valve (39) and the lower recess (20) has a cylindrical part (* .8), in äan a piston 209831/0445 (49), equipped with a seal (50), "is movable, a spacer (51) with on the circumference in the longitudinal direction provided grooves between the valve (39) and the piston (49) is freely movable. 14. Devices with connection block according to Claim 1, equipped with a recess (54) for connection to a flexible line and two outlet nozzles (56, 57) to the adjacent components, thereby | characterized in that it has a recess (54) and with the inlet and outlet ports (55, 57) connected to a recess (58) for receiving a three-way housing (9) is used, the angular position of which determines the connections between the recess (54) and the nozzle (55, 57). 15, devices having connector block according to claim 14, characterized in that the three-way housing (9) on the one hand loading of flexible material d is and having on its periphery a number of elevations (64) have a convex profile in longitudinal direction, that the Three-way housing has inner channels (63) which emerge in the middle between the elevations, and that on the other hand the recesses of each housing half (8 ″, 8 ^tf ) of the connection block, which represent the seats of the three-way housing (9), concave areas (67) corresponding to the shape of the three-way housing (9), so that the two housing halves (8 ^f , 8 ^ft ) are pressed against one another 209831/0445 and the three-way housing (9) essentially between the elevations (64), i.e. outside the sealing plane between the housing halves and outside the area of the inner channels (63) of the housing, is pressed together. 16. Devices with connection block according to Claim 14, characterized in that the housing (9) is such that the three-way housing can assume one of four angular positions, so that together with plugs that close certain openings in the connection block, seven different connection circuits can be made between the blocks, 17 · Devices according to claim 14, characterized characterized in that the three-way housing (9) has a schematic representation on at least one of its transverse sides (66) of the lines so that its angular position can be checked after assembly. 18, devices according to claim 1, characterized in that the fastening blocks (11) have a depth which is slightly greater than that of the remaining blocks (1, 8) of the arrangement, so that they too can be applied to carriers that have a certain curvature. 209831/0445