REINFORCED CONNECTOR

Description

REINFORCED CONNECTOR On behalf of: TEC.MO. Srl Headquartered in: Via Rio Fabbiani, 8 – 40065 Pianoro (BO) DESCRIPTION OF THE INVENTION 5 The present invention falls within the field of electrical and pneumatic connectors, in particular for plasma torches, and refers in particular to a reinforced connector comprising a plug and a socket. A connector is known comprising a plug and a corresponding socket which can be reversibly coupled to make the connection between a plasma torch 10 and a power cable, which is connected to a generator and is suitable for convey the electrical energy and the flow of compressed gas required to the torch operation of the torch itself. The plug and socket are fixed respectively at the free end of the cable and at the bottom of the flashlight, or vice versa. The known connector plug comprises a protruding base of polygonal shape, ad 15 hexagonal and plastic example, from which a connector protrudes male for gas and electricity, along the central longitudinal axis of the connector, and a plurality of conductive pins or poles arranged around said connector male; an alignment pin also protrudes from one side of the base polygonal. 20 The known connector socket comprises a female connector intended for accommodate the male connector of the plug and a plurality of conductive holes intended to accommodate the conductive pins, and a seat with a section and dimensions complementary to those of the plug alignment pin; one end edge of the socket protrudes with a shape complementary to the base of the spine. 25 The coupling between the alignment pin and the base of the pin and the corresponding Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) The seat and edge of the socket provide strength to the connection between plug and socket. One disadvantage of the known connector is that the connection made between the plug and socket is unstable and fragile, and the connector is exposed to easy disconnection or break when subjected to misalignment or shear stress. In fact, the seal between the 5 polygonal base and the corresponding edge is non-uniform and weaker along the sides of the base with respect to the corners; furthermore, the constraint between the alignment pin and the corresponding seat unbalances the tightness of the connection on one side of the axis longitudinal of the connector. Another disadvantage is that the robustness of the connection between the plug 10 and the note taking is determined almost exclusively by the link between the base polygonal and the corresponding edge. A further disadvantage of the known connector is that any losses of high pressure gas from the bond between male connector and female connector they creep through the conductive pins until they possibly exit the side wall 15 of the connector; if an electrical discharge accidentally develops between the pins, this risks being carried by the gas out of the connector, with the potential risk of injury to a plasma torch user. An object of the present invention is to propose a reinforced connector in where the connection between the plug and the socket is solid and robust. 20 Another object of the present invention is to propose a reinforced connector in which the risk of any electrical discharges originating from it is almost eliminated inside the connector can reach the outside of it. The features of the invention are highlighted below with particular reference to the attached drawings in which: 25 - Figure 1 shows a front view of the connector plug in question. Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) present invention; - figure 2 shows a front view of the socket of the connector in question present invention; - figure 3 shows an axonometric view of the plug of figure 1; 5 - Figure 4 shows an axonometric view of the socket in Figure 2; - figure 5 shows a sectional view along the VV half-planes of the pin in figure 1; - figure 6 shows a sectional view along the semi-planes VI-VI of the socket in figure 2; 10 - Figures 7 and 8 illustrate respective front views of a second form of manufacturing of the plug and socket of the connector which is the subject of this present document invention; - figures 9 and 10 illustrate respective axonometric views of the plug of figure 7 and of the figure 8 socket; 15 - Figures 11 and 12 illustrate respective front views of a variant of the plug figure 7 and the socket of figure 8; - figures 13 and 14 illustrate respective axonometric views of the plug of figure 11 and the socket in figure 12. The object of the present invention is a reinforced connector, comprising a plug 20 and a corresponding socket as better explained below, intended in particular to be used in plasma cutting machines. The plug is typically located at the end of a cable or is directly attached to the bottom or rear or proximal part of a plasma torch, and the socket is typically attached to the free end of an electrical power cord and 25 pneumatics connected at the opposite end to a machine that generates the energy Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) electric and supplies the pressurized gas needed to operate the torch. Of course, it is also possible and equivalent to invert the plug and socket by associating them to the power cord and the flashlight respectively. With reference to figures 1 to 12, 100 indicates the connector plug. 5 reinforced object of the present invention. The plug 100 extends longitudinally and is equipped with a body having a portion of fastening 104 at one end and an attachment portion 102 at the opposite end. The fixing portion 104 is for example connected to a cable or is integrated into the body of a plasma torch, while the attachment portion 102 is intended for locking 10 removable with a corresponding connector socket. In the preferred embodiment of the plug 100, the attachment portion 102 comprehends: - a 101 bottom centered on and perpendicular to a longitudinal axis X of the portion of attack 102 which coincides with the longitudinal direction of development of the spine 15 100; - a stepped or plinth base 103 protruding perpendicularly from the bottom 101 and in a distanced position and separated from the perimeter of the latter by a portion perimeter ring of the bottom 101; - a first pneumatic connector 105, constrained to the center of the base 103, cable and 20 with an almost cylindrical development aligned along the longitudinal axis X; - a plurality of conductive pins 107 protruding perpendicularly from the base 103 and arranged around the first pneumatic connector 105, i.e. parallel to and not coinciding with the longitudinal axis X; - a first alignment pin 109 fixed in a spaced position from the axis 25 longitudinal X, developing by protruding perpendicularly from the bottom 101 and Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) parallel to the first pneumatic connector 105. The pin 100 preferably has cylindrical symmetry aligned with the longitudinal axis X, or in any case the attachment portion 102 is preferably circular in shape; the bottom 101 is therefore an almost flat circle, which remains completely uncovered 5 from the base 103 along a circular crown of predetermined width developing along the entire perimeter portion of the 101 fund itself. The first pneumatic connector 105 is preferably a male connector of type known, placed at one end of a duct that carries the compressed gas to the nozzle of the torch. The first pneumatic connector 105 is typically made of metal or 10 other electrically conductive material, so that it can also act as a conductor for the intense electric currents required to trigger and sustain the discharge of plasma. A sealing element, such as an O-ring or gasket, is preferably associated with the free end of the first pneumatic connector 105 to ensure its airtight when mated with a corresponding pneumatic connector 15 female. The conductive pins 107 are preferably male type metal terminals or poles or other conductive material, intended for the electrical conduction of current for plasma and / or electrical signals relating, for example, to monitoring and regulation of the plasma torch operation. 20 The base 103, like the bottom 101, is made of electrically insulating material based on plastic, resin or other material, and possibly also provides insulation thermal. The base 103 includes a central portion 111 carrying the first connector tire 105, and a peripheral portion 113 carrying the conductive pins 107. The central portion 111 is defined by a central side wall 112 almost 25 cylindrical and centered along the longitudinal axis X, with a welded bottom end or Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) in one body with the bottom 101 and with the first pneumatic connector 105 that comes out from the opposite end, which is open. This central portion 111 acts as a base or anchoring base, support, structural reinforcement and alignment for the first pneumatic connector 105. 5 The peripheral portion 113 comprises an internal side wall 114 and a wall external side 116, preferably parallel to each other, and is preferably full to the in order to be equipped with better rigidity and structural strength. The bottom of the portion peripheral 113 in contact with the bottom 101 is welded or in one piece with the latter, while an opposite protruding surface 118 has longitudinal holes passing through the 10 which come out, and to which are anchored, respective conductive pins 107. The portion peripheral 113, and consequently said protruding surface 118, develop preferably along a circumference, or along one or more sections of a circumference, centered on the longitudinal X axis. The central side wall 112 of the central portion 111 and the internal side walls 15 114 and external 116 of the peripheral portion 113 preferably stand perpendicular or almost perpendicular to the bottom 101, with the edge between these walls of the base 103 and the bottom 101 clear or slightly rounded or rounded. Similarly, the edge between the said walls of the base 103 and the front surface of the latter, i.e. the surface from which the first pneumatic connector 105 emerges and the surface 20 protruding 118 from which the conductive pins 107 come out, is clear or slightly chamfered or rounded to facilitate mating with respective parts complementary to a socket to be associated with the plug, as described below. Variants of the base 103 provide that the central portion 111 and / or the portion peripheral 113 are slightly thicker at the bottom 101 and 25 thin out by proceeding longitudinally, with the respective walls slightly Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) inclined, for example at an angle of less than 5°, preferably about 1°. The longitudinal extension of the central portion 111 and the peripheral portion 113 is preferably the same, but variants of the plug 100 provide that such portions have different lengths. 5 The central portions 111 and peripheral portions 113 of the base 103 are separated by a channel 115 which completely surrounds the central portion 111, being defined by the bottom 101, from the central side wall 112 and from the internal side wall 114. The channel 115 It therefore has the shape of a circular crown centered on the longitudinal axis X. The width of the channel 115 is uniform and less than its depth, i.e. compared to 10 at the height of the base 103 understood as the longitudinal dimension of the lateral walls central 112, internal 114 and external 116. The ratio between the width of the channel 115 and its depth is preferably between 1:1 and 1:10; also depending on the coefficient of friction that characterizes the material from which the walls of the channel and the parts complementary to it of a socket to be associated with it, this relationship is more 15 preferably between 1:2 and 1:5, in order to provide a greater seal of the connection, on the one hand, and to allow easy coupling thanks to depth not too marked of channel 115 itself, on the other side; even more preferably this ratio is between 1:3 and 1:4; surprisingly, it has been experimentally verified that the width-depth ratios of the channel are included in particular between 20 1:3.2 and 1:3.4 provide an optimal compromise between the strength of the bond between the pin and socket, robustness of the base 103 and of the other elements of the plug and socket intended to mutual coupling, and ease of coupling and uncoupling. The peripheral portion 113 of the base 103 is preferably “C” or ring shaped open, preferably with a circular arc centered on the longitudinal axis X, with 25 two terminal ends 120, 122 converging towards each other or oriented towards Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) the same point. Preferably, said arc of circumference has angular length between 230° and 350°, preferably between 290° and 340°, more preferably approximately 320°. For a peripheral portion 113 with a circumference arc of 318°, for example, observe a particular robustness and holding of the bond with a portion 5 complementary of a corresponding socket, where the forces of this constraint are distributed almost uniformly along the entire arc of the peripheral portion 113 of base 103. The first alignment pin 109, which can be made indifferently in insulating material equal to or different from the material of the bottom 101 and the base 103, or 10 also made of metal material, is rigid and solidly fixed to the bottom 101, and is arranged along the same circumference along which the peripheral portion 113 develops of the base 103 between said terminal ends 120, 122 and separated from these. Therefore, the channel 115 is connected to and flows into the annular perimeter portion of the bottom 101 outside the base 103 through the spaces between the first pin of 15 alignment 109 and said terminal ends 120, 122 of the base 103. These spaces, whose bottom coincides with bottom 101, they form a pair of branches that connect the bottom and the volume of the channel 115 to the perimeter portion of the bottom 101 external to the base 103. The 107 conductive pins, the number of which varies according to the needs and 20 features of the machine or plasma torch to which the reinforced connector is intended, for example ten, are preferably fixed to the base 103 in two groups diametrically symmetrical with respect to the longitudinal plane passing through the axis longitudinal X and the first alignment pin 109, or in multiple angular groups separated. 25 Preferably, the terminal ends 120, 122 of the peripheral portion 113 are Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) blunt, or are rounded with a curvature diameter equal to the width or to the transverse thickness of the peripheral portion 113 itself. The first pin of alignment 109 has a cross-section of complementary or nearly complementary shape complementary to the shape of the said terminal ends 120, 122 of the portion 5 peripheral 113 between which it is placed and develops. Consequently the connection branches between the channel 115 and the outside of the base 103 they have an almost uniform width, preferably similar to the width of the 115 channel itself. A variant, not illustrated, of the plug 100 provides that the channel 115 is shaped closed ring or “O” shaped, with the terminal ends 120, 122 of the peripheral portion 10 113 closed and connected to the longitudinal lateral surface of the first pin of alignment 109. Preferably, the plug 100 further comprises an internally threaded ring 130, constrained to the attachment portion 102, coaxial with the longitudinal axis X and rotatable around the perimeter of the bottom 101, which is circular. The height, or size 15 longitudinal, of the ring 130 is preferably included between the dimensions longitudinal of the base 103 and of the first alignment pin 109. In a second embodiment of the plug 100, illustrated in figures 7 and 9, the peripheral portion 113 of base 103 comprises and is divided into two separate sectors 119 and in the shape of a circular sector, crescent or arc of a circumference, mutually mirrored 20 or diametrically symmetrical. Each sector 119 sweeps an angle between 20° and 170°, more preferably between 100° and 160°, even more preferably between 130° and 140°, for example 136°. The two sectors 119 end on one side with two terminal ends 120, 122 converging towards each other in the vicinity of the first alignment pin 109, 25 arranged between them in a separate and spaced position as already described; on the side Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) opposite to the first alignment pin 109, the two sectors 119 end with two additional free ends converging towards each other. Between these free ends a further connecting branch 123 then originates the channel 115 and the perimeter portion of the bottom 101 external to the peripheral portion 5 113 of the base 103. The width of this last connecting branch 123 is preferably larger, from 1 to 15 times, than the width of the two branches between the terminal ends 120, 122 and the first alignment pin 109. Preferably, also said free ends of the sectors 119 opposite the first pin of alignment 109 are chamfered or rounded as already described for the ends 10 terminals 120, 122. With particular reference to figures 11 and 13, a variant of this form of The construction of the 100 plug also requires that it is also equipped with a second alignment pin 125 arranged and fixed to the bottom 101 in a diametrically opposite position opposite to the first alignment pin 109 between the said free ends of the two sectors 15 119 opposite to the first alignment pin 109 itself, and separate from these. The second alignment pin 125 is preferably in the middle of said branch of connection 123 between channel 115 and the outside of the base 103, still leaving one space for said connection on its sides. In addition to increasing the ease of alignment between the 100 pin and a corresponding 20 socket, the second alignment pin 125 can contribute to the robustness of the constraint. The length of the second alignment pin 125 is preferably equal to the length of the first alignment pin 109, but it may eventually be different. The cross-section of the second alignment pin 125, however, is preferably different from and not compatible with that of the first alignment pin 109, so as to 25 allow connection between plug 100 and a corresponding socket only according to a Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) predetermined orientation of the conductive pins 107 and not in the opposite orientation rotated 180° around the longitudinal axis X. For example, the cross-section of the pin alignment 125 is “T”, oriented radially with the base towards the longitudinal axis X. 5 Returning to refer in general to figures 1 to 12, 200 indicates the socket of the reinforced connector which is the subject of the present invention. The socket 200 develops longitudinally and is equipped with a body having a portion of fastening 204 at one end and a connecting portion 202 at the opposite end. The fastening portion 204 is for example connected to a cable or is integrated 10 in the body of a plasma torch, while the connection portion 202 is intended for the removable lock with a corresponding 100 pin of the connector described above. In the preferred embodiment of the socket 200, the connection portion 202 comprehends: - a graft wall 201 centered on and parallel to a longitudinal axis Y of the 15 connection portion 202 which coincides with the longitudinal direction of socket development 200; - a concave seat 203 with transversal development, i.e. internal with respect to the wall of coupling 201, which delimits the lateral perimeter surface of the seat 203; - a second pneumatic connector 205 constrained to the centre of the seat 203, cable and 20 with an almost cylindrical development aligned along the longitudinal axis Y in direction of the fixing portion 204; - a plurality of hollow conductors 207 obtained in the seat 203 perpendicularly to it around the second pneumatic connector 205, i.e. parallel to and not coinciding with the longitudinal axis Y, with development in the direction of the portion of 25 fixing 204; Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) - a first concave alignment seat 209 obtained in the portion of connection 202 in a spaced position of the longitudinal axis Y and parallel to the latter. The socket 200, or at least its connection portion 202, preferably has 5 cylindrical symmetry, with the 201 graft wall essentially shaped like a cylinder cable of predetermined thickness. The second pneumatic connector 205 is preferably a female connector of type known, obtained at the end of a conduit connected to a gas source or reserve compressed, and suitable for coupling with a corresponding pneumatic connector 10 male. The second pneumatic connector 205, if made of electrically metal conductive, it can also act as a conductor for the operating current of the plasma torch for which the reinforced connector of the invention is used. The 207 hollow conductors are female type terminals or poles made of metal or other material suitable for the electrical conduction of plasma current and / or electrical signals. 15 The coupling wall 201, the seat 203 and the first alignment seat 209 are made of electrically insulating material, such as plastic, and are preferably in one body. The socket 200 includes a central wall 211 that separates a central area 212 of the seat 203 containing the second pneumatic connector 205 from a peripheral area 20 214 of seat 203 containing the hollow conductors 207. The central wall 211 is a cylindrical wall centered along the longitudinal axis Y, open at the ends, with one end welded to the bottom of seat 203 and with the opposite free end which preferably is longitudinally aligned or nearly so with the end of the coupling wall 201, with which it is coaxial. The central wall 211 25 keeps the second pneumatic connector 205 anchored, and contributes in particular Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) to keep the flow of gas and any intense electric current contained flow through the second pneumatic connector 205, isolating the central area 212 of seat 203 from any contact or discharge with the hollow conductors 207. The peripheral area 214 of the seat 203 is laterally defined by a lateral surface 5 internal 206 of the coupling wall 201 and by an external lateral surface 216 of the central wall 211, and ends in a bottom surface 218 perpendicular to the axis longitudinal Y. The central area 212, with the second pneumatic connector 205, is recessed with respect to this bottom surface 218. The peripheral zone 214, and consequently the so-called bottom surface 218, develop 10 preferably along a circumference, or along one or more sections of a circumference, centered on the longitudinal Y-axis. The said internal lateral surfaces 206 of the coupling wall 201 and external 216 of the central wall 211 preferably protrude perpendicular or almost perpendicular to the bottom surface 218, where the edge between them is sharp or slightly rounded. 15 Similarly, the extreme circular edges of the graft wall 201 and the central wall 211 have sharp edges or, preferably, are slightly rounded or rounded to facilitate insertion around the base 103 and into the channel 115, respectively, of a corresponding pin 100. Variants of the socket 200 provide that the coupling wall 201 and the central wall 211 20 are slightly tapered towards their extreme edge. The thickness of the central wall 211 is determined in concert with the width of the channel 115 of the corresponding plug 100, the two dimensions being between them complementary. In any case, the ratio between the thickness of the central wall 211 and its longitudinal dimension is preferably between 1:1 and 1:10, plus 25 preferably between 1:2 and 1:5, even more preferably between 1:3 and 1:4, and maximally Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) preferably between 1:3.8 and 1:4. Preferably, the central wall 211 and the coupling wall 201 are connected to each other. through at least two transverse septa 217 that separate the first alignment site 209 from the peripheral area 214 of the seat 203. Therefore, the peripheral area 214 has the shape 5 of “C” or open ring, centered on the longitudinal axis Y, whose ends are delimited and closed by the transverse septa 217. Preferably, the ring shape of the peripheral zone 214 follows an arc of a circle and sweeps an angle between 230° and 350°, preferably between 290° and 340°, more preferably about 320°, with the first alignment seat 209 arranged along the same geometric circumference 10 between the ends of the peripheral zone 214 and separated from these by the transverse septa 217. The transverse septa 217 are walls parallel to the longitudinal axis Y, of size longitudinal preferably equal to that of the central wall 211, and of thickness similar to that of the central wall 211, preferably 1 to 3 times larger, more preferably greater than 1.4 to 1.8, for example about 1.5 times greater. 15 Consequently the first alignment site 209 is defined and delimited by four surface sections belonging respectively to the central walls 211 and the grafting walls 2011 and to the transverse septa 217. The depth of the first alignment seat 209 is greater than the depth of seat 203 and such as to be complementary to the first alignment pin 109 of the corresponding pin 100. 20 The hollow conductors 207, in variable number, are obtained or, more precisely, fixed within corresponding holes made in the bottom surface 218 of the peripheral zone 214 in two diametrically symmetrical groups with respect to the passing longitudinal plane for the longitudinal axis Y and the first alignment seat 209, or in multiple groups angularly separated. 25 Preferably, the ends of the peripheral area 214 are chamfered or rounded with Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) curvature diameter equal to the width or thickness of the peripheral zone 214 same. The first alignment seat 209 has a cross-section of shape complementary or almost complementary to that of the said extremities of the zone peripheral 214 between which it is placed, so that the transverse septa 217 have a thickness 5 almost uniform. In a variant of the socket 200 the peripheral area 214 is “O” or ring shaped closed, with the first alignment seat 209 flowing into the bottom surface 218. Preferably, the socket 200 further comprises a thread 230 associated with the external lateral surface of the coupling wall 201 and complementary to the ring 130 10 of a corresponding pin 100 for mutual constraint. In a second embodiment of the socket 200, illustrated in figures 8 and 10, the central wall 211 and the coupling wall 201 are connected by two walls transverse 221, equal or similar to the transverse septa 217 already described and delimiting the first alignment seat 209, and through a cross-sectional element 223 on the wall or 15 embankment, which is diametrically opposed to the first alignment site 209. Thus, the peripheral zone 214 is separated into two sector-shaped segments 219 circular, crescent or arc of circumference, mutually specular or diametrically symmetrical with respect to the longitudinal axis Y. Each of these segments 219 is delimited by a respective transverse wall 221 at the end facing the 20 second alignment seat 209, and on one side of the said cross member 223 at the opposite end, with the ends of a segment 219 converging, i.e. pointed towards, or in any case in the same direction as, the respective ends of the other segment 219. Each segment 219 occupies an angle between 20° and 170°, more preferably 25 between 100° and 160°, even more preferably between 130° and 140°, for example 138°. Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) The thickness, i.e. the angular dimension, of the cross-sectional element 223 is preferably greater, from 1 to 15 times, for example about 5 or 6 times, than the thickness of the two transverse septa 217. Preferably, also the ends of the segments 219 terminating in the element 5 transverse 223 are blunt or rounded, similar to the ends in correspondence of the transverse septa 217. Referring specifically to figures 12 and 14, a variant of this form of The construction of socket 200 also requires that it include a second seat of alignment 225 concave obtained and developing in the transverse element 223, 10 with center in a diametrically opposite position to the center of the first seat of alignment 209. The depth of the concavity of the second alignment seat 225 is determined to be equal to or greater than the length of the second alignment pin 125 of a corresponding pin 100, and similarly the section transverse of the second alignment seat 225 is complementary to that of the 15 second alignment pin 125. Having described the plug 100 and the socket 200, it is clear that the object of this The invention is also a reinforced connector comprising said plug 100 and said socket 200, developed according to embodiments compatible with each other for allow for mutual coupling and reversible locking. 20 The plug 100 and the socket 200, in fact, preferably have corresponding means of constraint 303 acts to the reversible constraint of the respective attachment portions 102 and connection 202. Such means of connection 303 include for example the already mentioned 130 internally threaded ring and 230 thread, but they can also include, alternatively or in addition, other elements associated with the portions of 25 connection 102 and connection 202 and suitable for example for creating a bayonet joint, Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) a snap lock, and so on. In addition, to ensure compatibility between 100 plug and taken 200 in the mutual coupling, it is necessary that: - the base 103 and the conductive pins 107 are complementary, and therefore insertable, to the seat 203 and cable conductors 207; 5 - the first pneumatic connector 105 and the second pneumatic connector 205 are respectively male and female and mutually complementary; - the first alignment pin 109 and the first alignment seat 209 are mutually complementary; - the channel 115 and the central wall 211 are mutually complementary. 10 Complementarity extends at least to shapes and sizes, given due consideration any friction between materials and construction tolerances. Naturally, the branch also of connection 123 and the second alignment pin 125 of the plug 100 must be complementary and compatible with the respective cross-sectional elements 223 and second alignment seat 225, when present; similarly, the external diameter and 15 the height of the grafting wall 201 is preferably equal to or slightly lower to those of the ring 130. The typology of the pneumatic connectors first 105 and second 205 can obviously be reversed, with the first pneumatic connector 105 type female fixed to the plug 100 and the second pneumatic connector 205 of male type fixed to the socket 200. Similarly, it is possible to exchange the conductive pins 107 with the 20 conductors 207 between plug 100 and socket 200, or even alternate conductive pins and conductors, without the connector of the invention undergoing particular changes and the seal between the 100 plug and the 200 socket is affected. In a mating condition between the plug 100 and the socket 200 of the connector reinforced, the central wall 211 and the coupling wall 201 of the socket 200 are 25 respectively insert into the channel 115 and externally to the peripheral portion 113 Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) of the pin 100, going to rest or almost against the bottom 101; the first pin of alignment pin 109 and the possible second alignment pin 125 are inserted respectively in the first 209 and in the second 225 alignment seat. The pins conductive 107 couple in electrical contact with the respective hollow conductors 207, 5 and similarly the first pneumatic connector 105 is inserted airtight and with possible electrical contact in the second pneumatic connector 205. Advantageously, the interlocking coupling between central wall 211 and channel 115 is add to the interlocking of the grafting wall 201 at the portion perimeter of the bottom 101, significantly strengthening the connection between plug 100 and socket 10 200 of the connector. Furthermore, the forces acting in this constraint are distributed almost equally. uniformly along the side walls of the base 103 and the attachment portion 102, avoiding the creation of areas of high pressure or stress, and making it in fact the very strong bond. The insertion of the transverse septa 217 between the terminal ends 120, 122 of the peripheral portion 113 of the base 103 and the first alignment pin 15 109 further strengthens this constraint. In this way, the longitudinal axis X of the Spine 100 is perfectly and rigidly aligned with the longitudinal axis Y of the socket 200. The constraint is reversibly locked by the constraint means 303. Furthermore, as an additional advantage, the central wall 211 is made of electrically insulating material inserted fully or almost fully into channel 115 it forces out any compressed gas leaks, 20 from the connection between the first 105 and the second 205 pneumatic connector, to complete a significantly longer path before reaching the conductive pins 107, making the risk of an electric shock developing between the first pneumatic conductor 105 and the conductive pins 107, and that one of such discharges comes out accidentally from the reinforced connector body injuring a flashlight user 25 plasma in which the connector is used. Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others) Optionally, at least one of first alignment pin 109, first seat 109 alignment 209, second alignment pin 125, second alignment seat 225, channel 115, central wall 211, and base walls 103 may carry elements of friction and / or seal, such as an O-ring or a rubber lining welded to the 5 underlying material, intended to further improve adhesion and grip reciprocal of the corresponding elements of plug 100 and socket 200. A gasket applied to the central wall 211 and / or to the channel 115, moreover, it can guarantee a seal almost completely exposed to the air. Agazzani & Associates Srl Engineer Giampaolo Agazzani (Registration no. 604BM) (for oneself and for others)

Claims

CLAIMS 1) A plug having a connection portion (102) comprising: a bottom (101) centered on a longitudinal axis (X) of the connection portion (102); a base (103) protruding from the bottom (101) and spaced from the perimeter of the latter; a first pneumatic connector (105) constrained to the base (103) and extending along the longitudinal axis (X); a plurality of conductive pins (107) protruding perpendicularly from the base (103) and arranged around the first pneumatic connector (105); a first alignment pin (109) fixed in a position spaced from the longitudinal axis (X); the plug (100) being characterised in that the base (103) comprises a central portion (111) carrying the first pneumatic connector (105) and a peripheral portion (113) carrying the conductive pins (107), the central (111) and peripheral (113) portions being separated by a channel (115), and in that the first alignment pin (109) protrudes perpendicularly from the bottom (101). 2) Plug according to claim 1 characterised in that the peripheral portion (113) has the shape of a “C” or open ring with two converging terminal ends and is centred on the longitudinal axis (X), with the first alignment pin (109) arranged between said ends and separate from them, and with the channel (115) exiting outside the base (103) through the spaces between said ends and the first alignment pin (109). 3) Pin according to claim 1 characterised in that the peripheral portion (113) comprises two separate sectors (119) in the shape of a circular sector, with the Agazzani & Associati Srl Ing. Giampaolo Agazzani (Registration No. 604BM) (on his own behalf and for others) first alignment pin (109) arranged between two ends of said sectors (119) and separate from them. 4) Pin according to claim 3 characterised in that it further comprises a second alignment pin (125) arranged between and separated from the ends of the sectors (119) opposite the first alignment pin (109). 5) A pin according to any of claims 2 to 4 characterised in that the ends of the peripheral portion (113) are chamfered or rounded with a diameter equal to the width of the peripheral portion (113) itself, with the first alignment pin (109) having a cross-section of a shape almost complementary to that of the ends of the peripheral portion (113) between which it is placed. 6) Plug according to any of the preceding claims characterised in that the channel (115) is defined by the side walls of the central (111) and peripheral (113) portions of the base (103) and by the bottom (101). 7) Socket equipped with a connection portion (202) comprising: a coupling wall (201) centred on a longitudinal axis (Y) of the connection portion (202); a seat (203) concave internally with respect to the coupling wall (201); a second pneumatic connector (205) constrained to the seat (203) and extending along a longitudinal axis (Y); a plurality of hollow conductors (207) obtained in the seat (203) perpendicularly to it around the second pneumatic connector (205); a first concave alignment seat (209) obtained in the connection portion (202) parallel to, and spaced from, a longitudinal axis (Y); the socket (200) being characterised by the fact that it comprises a central wall Agazzani & Associati Srl Ing. Giampaolo Agazzani (Registration in the Register η.604BM) (for itself and for others) (211) which separates a central area (212) of the seat (203) containing the second pneumatic connector (205) from a peripheral area (214) of the seat (203) containing the hollow conductors (207). 8) Socket according to claim 7 characterised in that the central (211) and coupling (201) walls are connected by at least two transverse partitions (217) which separate the first alignment seat (209) from the peripheral area (214) of the seat (203), such peripheral area (214) having the shape of a “C” or open ring delimited by the transverse partitions (217) and centred on the longitudinal axis (Y). 9) Socket according to claim 7 characterised in that the central (211) and coupling (201) walls are connected by two transverse walls (221), which delimit the first alignment seat (209), and by a transverse element (223), which is opposite the first alignment seat (209). 10) Socket according to claim 9 characterised in that it also comprises a second alignment seat (225) obtained in the transverse element (223). 11) Socket according to any of claims 8 to 10 characterised in that the ends of the peripheral zone (214) are chamfered or rounded with a diameter equal to the width of the peripheral zone (214) itself, with the first alignment seat (209) having a cross-section of a shape almost complementary to that of the ends of the peripheral zone (214) between which it is placed. 12) Reinforced connector comprising the plug (100) of any of claims 1 to 6 and the socket (200) of any of claims 7 to 11 characterised in that the plug (100) and the socket (200) have corresponding reversible constraint means (303) of the respective attachment (102) and connection (202) portions, and / or in that: Agazzani & Associati Srl Ing. Giampaolo Agazzani (Registration No. 604BM) (on his own behalf and for others) the base (103) and the conductive pins (107) are complementary to the seat (203) and the hollow conductors (207); and / or the first pneumatic connector (105) and the second pneumatic connector (205) are respectively male and female, or vice versa, and complementary; and / or 5 - the first alignment pin (109) and the first alignment seat (209) are complementary; and / or the channel (115) and the central wall (211) are complementary.