FR2548326A1 - PNEUMATIC VALVE - Google Patents

Abstract

A PNEUMATIC VALVE CONSISTS OF A BODY 1 CONSISTING OF SYNTHETIC MATERIAL AND DUCTS 2 OPENING ON A SIDE 3. A METAL PLATE 5 IS APPLIED AGAINST SIDE 3 AND INCLUDES PROJECTING PARTS 6 PRESENTING A THREADED BORE 4 SUSCEPTIBLE WITH A VISIBLE FITTING. O-RINGS 10 ENSURE THE SEAL BETWEEN THE BORES 4 AND THE DUCTS 2. THIS ARRANGEMENT OFFERS THE ADVANTAGES THAT THE CONNECTION DEVICE IS EASILY INTERCHANGEABLE AND THAT THE VALVE BODY CAN BE MADE BY MOLDING OF SYNTHETIC MATERIALS SUITABLE FOR TYPES OF 'VARIOUS USES.

Description

1 254832 i

PNEUMATIC VALVE

  The present invention relates to a fluid valve comprising a body, having a plurality of conduits opening on the same face of this body through orifices capable of receiving threaded connections.

  These connection ports generally comprise tapped bores of which there are several kinds of threads (metric, BSP, NPT, etc.) commonly used. When the manufacturer wishes to put the valves on the market in different countries, he is obliged either to make a certain number of threads. number of varieties of valves with different threads, or to provide with the valves a set of adapter bits, which increases the cost of

  cost price of the valve and increases its size.

  In addition, for reasons of strength when tightening these connections, it is almost essential that these threads are in a metal material, the synthetic materials used for the bodies of

  valve not being strong enough.

  The object of the invention is to remedy these disadvantages and it is characterized, for this purpose, in that it comprises a metal plate applicable on said face and fixed by elements forming an integral part of the valve or its means of fixing, this plate having threaded bores protruding on at least one of the faces of the plate, sealing means being provided between this plate and the body to ensure a sealed communication between

each bore and its conduit.

  Transformation of the valve for different threads can thus be easily achieved. In addition, the construction according to the invention makes it possible to manufacture the valve body made of synthetic material suitable for various types of use while ensuring the strength

required for threaded connections.

  The attached drawing shows schematically and by way of example an embodiment and two variants

of the valve object of the invention.

  Figure 1 is a side view of an embodiment of the valve with some elements in sectional sectional.

  FIG. 2 is a sectional detail view illustrating certain features of the valve shown in FIG.

Figure 1.

  Figure 3 is a perspective view of one of the plates used for the valve in Figure 1.

  Figures 4 and 5 illustrate a first variant and Figures 6 and 7 a second variant of the form

  embodiment shown in Figures 1 to 3.

  The pneumatic valve illustrated in FIGS. 1 to 3 comprises a valve body 1 made of synthetic material and ducts 2 opening on a face 3 of this body. A metal plate 5 is applied against the face 3 and comprises projecting parts 6 presenting The valve body 1 has, at the level of the orifices 7 of the ducts 2, housings 8 intended to receive the protruding portions 6. These housings 8 have an annular groove 9 containing an O-ring 10 which bears against the outer face of the projecting portion 6 to ensure tight communication between the bore 4 and the conduit 2,

  when the plate 4 is mounted on the valve body 1.

  The metal plate 5 has longitudinal ribs 11 stiffening The two edges 12 folded at right angles are extended by tabs 13 substantially parallel to the main plane of the plate 5 These tabs 13 engage in grooves 14 formed in two lids 15 , 16 screwed to the valve body 1 retaining

  thus the plate 5 on the valve body 1.

  The variant illustrated in FIGS. 4 and 5 comprises

  a metal plate 17 reinforced by a longitudinal rib

  tudinal 27 and-rigidly held against the valve body 1 by the fastening means 18 of the valve This plate 17 does not require tabs 13, but holes 19 for the passage of the fixing screws 18 and the projecting parts 6 b are oriented outwards. The second variant represented in FIGS. 6 and 7 applies to the juxtaposable valves. It has a metal plate 24 comprising lugs 25 intended to engage in grooves 26 formed in the bodies 10 of other valves or of fixed endpieces on the other hand. In the types of assembly shown in FIGS. 4 and 6, the body of the valve is often in two parts 1a and 1b. By this arrangement it is possible to manufacture the valve body of synthetic material. The molding of the valve body can be made of various materials.

  adapted for specific uses.

  Since the connecting device is capable of being mounted and exchanged in its entirety, the adaptations to the threading standards in force in different regions

  of the globe are greatly facilitated.

Claims (4)

  1 fluid valve comprising a body (1), having a plurality of conduits (2) opening on the same face (3) of this body through orifices capable of receiving connectors, characterized in that it comprises a metal plate (5, 17, 24) applicable on said face (3) and fixed by elements (15, 16) forming an integral part of the valve or by its fixing means (18), this plate (5, 17, 24 ) having threaded bores (4) projecting from at least one of the faces of the plate, sealing means (10) being provided between this plate (5, 17, 24) and the body (1) to provide a waterproof communication between each bore (4) and its conduit (2).   Valve according to Claim 1, characterized in that its body (1) is made of synthetic material.   Valve according to Claim 1, characterized in that the plate (5, 17) has at least one stiffening rib (11 27), the body (1) having a   portion shaped to receive the rib {11, 27).   Valve according to Claim 1, characterized in that the plate (11, 27) comprises lugs (13, 25) substantially parallel to its main plane and intended to engage in grooves (14, 26) formed in elements (15, 16) fixed to the valve body (1) or formed in the bodies (1) of other fixed valves on the other hand and   other of the valve body (1) carrying the plate (24).