MXPA97007663A - Assembly of acoplamie - Google Patents

Abstract

The present invention relates to a coupling assembly for connecting two members, which comprises in combination: (a) a cut locking ring or sectioned key having a first end and a second end, the first and second ends aligned to allow a contact coupling, the ring being capable of expanding to define a gap between the first and second ends, (b) a first member extending along an axis, from a leading end to a posterior position and having a surface external, a rib extending outwards from the outer surface, including the rib (i) a ramp that tapers outward in a direction away from the front end and away from the shaft at an angle within the range of 10 ° to 25 ° in relation to said axis, (ii) a cylindrical surface parallel to the axis, extending backwards from the ramp a distance of at least 0.0254 centimeters, and (iii) a man or tapering away from the front end and inward towards the axis, the cylindrical surface connecting the ramp and the shoulder, and (c) a second member extending from a receiving end to a remote end, which includes (i) a cylindrical wall facing inward, dimensioned to receive the first member, including the rib and extending axially from a close position adjacent the receiving end towards the remote end, and (ii) an annular groove that faces inwardly, which it extends outwardly from the cylindrical wall which faces inwardly, the cut-off ring being capable of being received in the annular groove, the annular groove having surfaces extending outwards from the cylindrical wall facing inward, which it includes a first surface defining a portion of the groove and a second surface positioned between the first surface and the receiving end, including the second surface a chamfer tapering inward towards the axis, in a direction toward the receiving end, and being arranged at an angle with respect to the axis, which is less than the angle between the shoulder and the axis, the first member and the second member they are dimensioned so that, during the insertion of the first member into the second member, the locking ring or sectioned key travels up the ramp to increase the size of the gap, through the cylindrical surface of the rib and contracts to reduce the size of the hole, and to attach the shoulder, being stuck between the shoulder and the chafl

Description

PREVIOUS TECHNICAL COUPLING ASSEMBLY There is a great need in the field for hydraulic, pneumatic and refrigeration systems of a coupling that can be fixed by means of a simple axial movement of a male member in a female member and that allows fluid flow without leaks even when the system is subjected to high pressures. U.S. Patent No. 5,226,682, assigned to the beneficiary of the present application, presents several embodiments of a type of coupling assembly. PRESENTATION OF THE INVENTION The present invention focuses on a coupling assembly wherein a first male member is provided having an outwardly extending rib defined by (1) a ramp that tapers within a specific angular range in relation to to the shaft (2) a cylindrical surface extending parallel to the axis over a minimum distance and (3) a shoulder tapering inward toward the shaft and a second female member having a passage with a cavity facing towards inside which a split metal ring having a first end and a second end aligned to allow the stop hook and define a gap not exceeding 0.0762 cm, and preferably not exceeding 0.0254 cm. As the first male member moves in the second female member, the split ring moves upwardly "of the tapered ramp, on the cylindrical surface and contracts resiliently against the tapered shoulder to thereby engage the rib thereby ining the member. male firmly engaged on the female member A release sleeve is movably mounted on the outer surface of the first male member and has an edge which, upon a movement of the release sleeve towards the split ring, presses the split ring a reverse and outward direction along the tapering shoulder toward said cylindrical surface thus allowing the first male member to be removed from the second female member.The coupling assembly of the present invention may have the male member fixedly ined on the female member. under significantly higher pressures than prior art couplings rings are employed matches. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a fragmentary elevation view showing specifically the rib portion of a male member of the prior art. Figure 2 is a fragmentary elevation view of the male member formed in accordance with the present invention specifically showing the rib portion.

Figure 3 is an elevation view of the coupling assembly of the present invention in the fully engaged position with the female member and the release sleeve of the male member shown in section. Figure 3A is an enlarged fragmentary view of the rib, split locking ring, slot, and releasing sleeve of the fully coupled assembly of Figure 3. Figure 4 is a view similar to Figure 3 but showing the relative positioning of the parts when the release sleeve is moved to a position that causes the split locking ring to move to the release position. Figure 5 is a view similar to Figures 3 and 4 but showing the male member and the female member in a disengaged position. Figure 6 is a perspective view showing the metal part of the release sleeve. Figure 7 is a perspective view showing the split locking ring. Fig. 8 is an enlarged fragmentary view of a modified embodiment showing the male and female members in the fully engaged position. Figure 9 is a perspective view of the respective male and female members of the embodiment presented in Figure 8 in a disengaged position.

Figure 10 is a sectional view showing a modified embodiment. Figure 11 is a sectional view showing an additional modified embodiment. Figure 12 is a sectional view of a modified release sleeve. Figure 13 is a perspective view of the metal part of the modified release sleeve of Figure 12. Figure 14 is a sectional view showing another embodiment. PREFERRED MODALITY FOR CARRYING OUT THE INVENTION With reference to Figure 1, a shape of the male member 10 of the prior art having portions HA and 11B of external surface is shown with a rib extending outwardly from such external portions HA and 11B and positioned between such portions HA and 11B of surface external The male member 10 has an attack end 12 for insertion into the receiving end of a female member. The male member 10 includes a passage 17 extending therethrough along an axis (not shown). The rib includes a ramp 13 tapering outwardly from the outer surface portion HA in a direction away from the leading end 12 at an angle X relative to said outer surface portion HA and the axis of the male member that It is parallel to it. The ramp angle X of the couplings of the prior art was within a range of approximately 30 degrees. The ramp 13 extends toward an apex 14. The rib extends from the apex 14 along the tapered shoulder 15 to the second outer surface portion 11B. A prior art device having the aforementioned rib construction is presented in Figures 7 to 9 of U.S. Patent No. 5,226,682. In the manufacture of couplings designed to meet standards of the Society of Automotive Engineers (SAE) (Society of Automotive Engineers), it is customary to manufacture such couplings from G12000 series steel in accordance with what is stated in the Unified Numbering System (Unified Numbering System) for SAE and in accordance with the American Iron and Stell Institute < AISI) (Institute American Iron and Steel), and are designed to be used with hydraulic hoses that meet the standards established by SAE. For example, the prior art device presented in Figures 7 to 9 of U.S. Patent No. 5,226,682 is a device suitable for operating with a hydraulic hose that complies with the J517-SAE series 100R2 standard. Couplings for use in automotive applications in Europe are also manufactured from steel of the G12000 series but must meet standards issued by the Deutsches Institut for Nor ung (DIN), (German Institute for Standardization), Berlin, Germany. DIN Standard 20022 Part 2 includes standards for Type 2ST hoses that are stricter than the corresponding J517 - SAE 100R2 series pressure standards. Below is a table showing a comparison of the pressure standards for couplings of various sizes according to (1) Pressure Standard according to J517 - SAE series 100R2 and (2) Pressure Standard 20022 Part 2, Type 2ST of DIN : Operating pressure Operating pressure Size SAE 100R2 DIN Type 2ST -6 4,000 psi 4,785 psi -8 3,500 psi 3,988 psi -10 2,750 psi 3,625 psi -12 2,250 psi 3,117 psi -16 2,000 psi 2,393 psi -20 1,625 psi 1,813 psi - 24 1,250 psi 1,305 psi Operating pressures for SAE and DIN standards were established based on the consideration that burst pressures for the various sizes will be four times larger than the specified Operating Pressure and that hoses and couplings used with them will in fact be tested for Test Pressures twice as high as the specified operating pressures. Obviously, the coupling assembly can be used at pressures significantly lower than the pressures specified in the SAE and DIN standards. Prior art couplings of the type employing a rib and a split metal locking ring that have been tested withstand pressures four times higher than the Operating Pressure specified for SAE 100R2 standards but not for DIN Type 2ST standards. In contrast, the coupling assembly of the present invention can withstand pressures four times higher than the specified Operating Pressures for both the SAE 100R2 standards and the DIN Type 2ST standards. Accordingly, the forces provided in prior art couplings of this type which are subjected to a pressure four times greater than the Operating Pressure specified in DIN Type 2ST can cause the rib of the male member to be cut resulting in a failure of the member. coupling assembly. The ability to withstand such high pressures allows the coupling of the present invention to be used in a much wider range of applications than prior art couplings. For example, the pressures developed in hydraulic systems of earth moving machinery are such that they do not allow the use of prior art couplings of the type presented in Figure 1 while the coupling assemblies of the present invention are satisfactory for such. use at high pressure. With reference to Figures 2 to 7, the coupling assembly of the present invention includes a first male member 20 and a second female member 30. Each of the male member 20 and the female member 30 extends along an axis A when the assembly is in the engaged position as shown in figure 3. The male member 20 extends from an attack end 21 whose purpose is to insert itself into the female member 30 towards an exit end 22 and has a passage 23 that extends through the. If desired, the outlet end 22 may be equipped with external threads 24 for attachment on a threaded coupling (not shown) and a series of flat portions 25 defining a hexagonal cut for engagement by means of a wrench . Adelate of the hexagonal cut defined by the flat parts 25, the male member 20 has an external cylindrical exit surface 26 and an external attack surface 27 that are separated by a rib. The rib includes a tapered ramp 28 extending backward and outward from the external attack surface 27 and an angle Y relative to the axis A within a range of 10 degrees to 25 degrees and preferably at an angle of 18 degrees. The ramp 28 extends towards a cylindrical surface 29 which is parallel to the axis and extends rearwardly from the ramp 28 over a distance A of at least 0.0254 cm and, preferably, at least 0.0762 cm. The end portion of the rib is a shoulder 31 tapering back and inward from said cylindrical surface 29 to meet said outgoing external surface 26. The shoulder 31 must be abused at an angle M within a range of 35 ° to 55 * in relation to axis A and preferably at an angle of approximately 45 °. The other component of the male member 20 is a separately formed release sleeve 33 consisting of a metal portion 34 and a thermoplastic and / or elastomeric portion (TPE). As can be seen in Figure 6, the metal portion 34 includes a split cylindrical wall 36 having a plurality of slits 37. The split cylindrical wall 36 extends from an attack end 38 to a wall portion 39 that tapers toward the outside. The slits 37 may, if desired, extend into the tapered wall portion 39. A larger cylindrical wall portion 41 extends from the taper wall portion 39 and has a flange 42 extending radially outward therefrom. The flange 42 has a plurality of openings 43. As can be seen in Figure 3, the portion 35 of TPE can be molded around the flange 42 and includes a flange portion 44 and a cylindrical wall portion 45 spaced from the cylindrical wall 36 of the metal portion 34 and substantially parallel to said wall 36. During the molding of the TPE portion 35 around the flange 42 of the metal portion 34, plastic and / or elastomeric material will flow into the openings 43 to provide a secure fixation on the metal portion 34. As can be seen in Figure 3, the cylindrical split wall 36 and the cylindrical wall portion 45 cooperate to define a recess 46. The TPE portion 35 includes a sealing fin 47 which is extends radially inward from the flange portion 44 and inward from the larger cylindrical wall portion 41. The sealing flap 47 extends inwardly enough to comfortably engage the outer cylindrical outlet surface 26 to function in this manner as a dust seal to prevent the penetration of dust into the engagement engaged between the release sleeve 33 and the surface 26 external output or at least to minimize the possibility of dust penetration. The second member in 30 extends from a receiving end 50 towards a remote end 51 which may have adjacent external threads 52 or other suitable connecting devices to be secured to a separate connection (not shown). The portion of the second female member 30 adjacent the receiving end 50 is provided with an outer cylindrical surface 52 that is sized to be comfortably received in the cylindrical wall 45 of the release sleeve 33 and has an internal cylindrical surface 53 of a size so as to receive there the split cylindrical wall portion 36 of the metal portion 34 of the release sleeve 33. An inwardly facing annular groove 54 extends outwardly from the inner cylindrical surface 53 and is sized to to receive there a ring 60 of block metal match. A chamfer 55 extends at an inward angle from the annular groove 42 towards the receiving end 50 to find the inner cylindrical surface 53. The angle N (FIG. 3A) between the chamfer 55 and the internal cylindrical surface 53 is within a range of 20 * to 40"and is preferably 30 * A second internal cylindrical surface 56 of smaller size than the first The cylindrical surface 53 is positioned towards the remote end 51 from the annular groove 54 and is joined thereto by means of an inwardly tapered wall portion 57. The second internal cylindrical surface 56 is sized to receive the surface 27. external attack of the first male member 20.

The second internal cylindrical wall surface 56 has an annular groove 58 facing inwardly in which an annular seal 59 of neoprene or other suitable seal material is positioned and a rigid plastic ring 51 which is positioned at the slot 58 between the annular seal 59 and the receiving end 50. The plastic ring 61 has an opening of such size that it can comfortably receive the external attack surface 27 of the first male member and the annular seal 59 has an adequate size for sealing and engaging said external attack surface. The presence of a rigid plastic ring 61 in a position for engagement by the leading end 21 of the first male member 20 serves to protect the annular seal 59 against cuts and other damage at the time of insertion of the outer surface of the ring. attack 27 there. The rigid plastic ring 61 also serves to protect the annular seal 59 from damage when used in systems having a high fluid impulse flow. Positioned on annular ring 54 is a split metal locking ring 60 formed of a resilient tempered phosphor bronze material or, preferably, a resilient hardened stainless steel. The split block ring 60 is provided with a first end 62 and a second end 63 which must either be in a support relationship or have a maximum gap of 0.0762 centimeters when the first male member 20 is disconnected from the second female member 30. The split locking ring 60, when the parts are in the disconnected position, has an external diameter smaller than the diameter defined by the outermost portion of the annular groove 54 but larger than the diameter of the first internal cylindrical surface 53. The split locking ring 60 has an internal diameter substantially equal to or preferably slightly smaller than the internal diameter of the external output surface 26 of the male member 20 to comfortably engage said external output surface 26 when the male member 20 is engaged. In the female member 30. As will be seen, the internal diameter of the split locking ring 60 is therefore significantly smaller than the diameter of the cylindrical surface 29. The split locking ring 60, by virtue of its dimensions, will be retained in The annular ring 54 when the first male member 20 is disconnected from the second female member 21. However, by virtue of its match condition, the diameter size of the locking ring 60 can be expanded and the end portions 62 and 63 separated according to the locking ring 60 moves in the ramp 28 and cylindrical surface 29 when the first male member 20 is inserted in the second my female ram 30. Accordingly, as can be seen in Figures 3, 3A and 5, when the first male member 20 is inserted into the second female member 30, the leading end 21 and the external attacking surface 27 will pass through the split locking ring 60 until the ramp 28 reaches the split locking ring 60. A continued inward movement of the male member 20 will cause the ramp 28 to expand the locking ring 60 thereby opening the gap between the ends 62 and 63 by increasing amounts as the locking ring 60 moves toward the maximum diameter of the ramp 28 and on the cylindrical surface 29. As the cylindrical surface 29 moves past the split locking ring 60 as the forward movement of the first male member 20 continues, the split locking ring 60, by virtue of the resilience of the metal, will contract to a size approaching its original size and, in this way, it will reposition itself to avoid the withdrawal of the first male member 20 from the second female member 30 by virtue of the split block ring 60 being hooked on the shoulder 31. As will be seen looking at Figure 3A, the tapered shoulder 31 and the chamfer 55 are positioned at converging angles in the direction toward the annular groove 54 when the first member 20 is engaged in the female member 30. This convergence results from the fact that the angle of the tapered shoulder 31 is greater than the angle of the chamfer 55 relative to the axis A as previously stated. When the first male member 20 is fully engaged in the second female member 30, the external attack surface 27 is hooked in the form of a seal on the annular seal 59 thus preventing leakage of liquid. Additionally, the receiving end 50 and portions of the second female member adjacent thereto are positioned in the recess 46 between the cylindrical wall portion 45 of the TPE portion 35 and the cylindrical cracked wall 36 of the metal portion. The outer cylindrical surface 52 is in comfortable contact with the internal part of the cylindrical wall portion 45 thus preventing, together with the seal flap 47, that dust or other contaminants from entering the area surrounding the locking ring 60. of split metal when the members are in the hooked position of Figure 3. As can be seen from Figure 3, when the first male member 20 is in the fully engaged or engaged position with the second female member 30 , there is a space between the receiving end 50 and the inner part of the flange portion 44 which, in fact, is the end of the recess 46. Additionally, the leading end 38 of the cylindrical wall 36 of release sleeve hardly if it is touched, or preferably preferably, it is slightly spaced from the split metal blocking ring 60. (See figure 3A >; When it is desired to disconnect the first male member 20 from the second female member 30, it is simply necessary to move the release sleeve 33 towards the leading end 21 thereby causing the leading end 38 of the split cylindrical wall to press the locking ring 60 of. metal split axially towards the rib and, in this way, presses it towards the outside by means of the tapered shoulder 31 against which the split or split metal ring 60 is pressed by the release sleeve. As will be seen, when the split metal block ring 60 has been pressed into a position in alignment with the cylindrical surface 29 of the rib, the first male member 20 will be released from the second female member 30 and can be removed therefrom. To the extent that the release sleeve 33 has a split cylindrical wall 36 with slits 37, the segments of the cylindrical wall 36 divided between the slits 37 can be deflected outwardly by the action of the tapered shoulder 31 thus ensuring that the release sleeve 33 can be moved far enough towards the leading end 21 to ensure that it presses the split metal locking ring 60 out of engagement with the tapered shoulder 31 and in the annular groove 54 when it engages the cylindrical surface 29, thereby enabling the release of the male member 20 in relation to the female member. It is the position illustrated in Figure 4. When moving towards the extreme release position towards the attack end 21, the portion of the cylindrical split wall 36 of the release sleeve adjacent to the attack end 38 can be deflected outwardly by means of the movement of the attack end 38 against the tapered shoulder 31. Referring now to FIGS. 8 and 9, a modified embodiment is shown. In this embodiment, a male member 65 and a female member 70 are provided. The female member 70 is exactly the same as the second female member 30 of the first embodiment with one important exception, i.e., the presence of a groove 71. ring facing outwards on the outer surface 72 in a slightly spaced area of the receiving end 73. The male member 65 is identical to the first male member 20 of the first embodiment except for the fact that the cylindrical wall portion 66 of the release sleeve 67 has an annular flange 68 facing inwardly positioned to be received in the annular groove 71 when the male member 65 is fully engaged in the female member 70. This provides the visual security that the male member 65 it is fully inserted in a complete locking engagement position with the female member 70.

Adicianalmente, if desired, the female member 70 may be provided with a second groove 74 annular facing outward spaced relative to the annular groove 71. The second annular groove 74 provides a device for gripping the female member 70 during manufacture helping so to a more efficient production. Referring now to Figure 10, muestra shows another embodiment wherein a male member 75 and a female member 80 are provided. The member 75 extends from an attaching end 76 towards an exit end 77 with a rib 78. annular located generally centrally. The portion of the male member 75 between the rib 78 and the outlet end 77 is provided with a well-known prior art hose connection configuration with a hose 81 fixed there by means of a pressure collar 82. The member portion male 75 between the collar 78 and the leading end 76 is identical to the portion described in the "odility" of Figures 3 to 5, including the presence of a release sleeve 79. In the embodiment of Figure 10, the diameter The outer collar of the collar 78 is at least as large as the outer diameter of the release sleeve 79. In this embodiment, the presence of the collar 78 having a diameter at least as large as the diameter of the release sleeve 79 serves to prevent the release sleeve 79 is accidentally moved forward towards the leading end 76 and to thereby minimize the possibility of accidentally causing the male member 75 to become detached Che of the female member 80. The female member 80 is shown with a doubles of 90 * and threads 82 for a connection with a threaded connector. All the portions of the female member 80 that are engaged by the female member 75 are identical to the corresponding portions described in the embodiment of Figures 3 to 5. Referring now to Figure 11, there is another embodiment in which a wall is shown. 83 of a pressure vessel having a passage 84 with an enlarged cavity 90 that can be configured to directly receive a male member 85. According to this embodiment, the male member 85 is identical to that shown in Figure 10 with the exception of the sleeve of release. In this embodiment, the release sleeve 86 is provided with an enlarged radial TEP flange 87 extending radially outwardly beyond significantly beyond the radial extension of the collar 88 to allow easy access for displacing the release hose 86. forward towards the release position. The flange 87 is equipped with an annular flange 117 which engages the exposed face of the wall 83 when the male member is in the fully latched position to prevent the penetration of dust into the cavity 90. The cavity 90 has an annular groove 91 facing inwardly to receive an annular seal 92 and a rigid plastic ring 93. A second annular groove 94 facing inwardly to receive the split locking ring 89 is provided. As can be seen in Figure 11, when the male member 85 is in the fully engaged position in the cavity 90, the flange portion 87 of the release sleeve 86 inwardly from the annular rim 117 will be spaced from the exposed face of the wall 83 over a distance sufficient to allow the release sleeve 86 to be able to move forward towards said wall 83 over a distance sufficient to cause the release sleeve 86 to press the locking ring 89 on the rib and in the second annular groove 94 facing inwardly to thereby release the male member 85 from the wall 83 of the container under pressure. If desired, a tool can be inserted between the collar 88 and the release sleeve to assist in pressing the release sleeve 86 forward. With reference now to figures 12 'and 13, a modified release sleeve 95 is shown. The modified release sleeve 95 is easier to manufacture and therefore less expensive than the release sleeve 33 shown in the previous embodiments. The release sleeve 95 includes a metal portion 96 having a cylindrical wall portion 97 extending from an etching end 98 whose purpose is to engage and push against a split metal locking ring to thereby cause its release towards a tapering portion towards the exterior 99 which in turn extends to a flange 100 which extends towards the outside. The flange 100 has a plurality of aperture 101. A single groove or notch 102 extends fully through the metal portion 96 from the leading end 98 through the cylindrical portion 97, the portion 98 tapered outwardly. and the flange 100. Additionally, they provide two auxiliary slits 103 extending through the flange 100 and partially at the outwardly shielded portion 99. The second component of the modified release sleeve is a plastic member molded integrally with which includes a flange portion 104 extending therethrough the openings 101 and annular wall 105 spaced apart and generally parallel to the cylindrical portion 97. If εeε, the cylindrical wall may have an annular shoulder 106 which faces towards inside in front ßu. The presence of the slit 102 allows the cylindrical wall portion 97 to expand as the release sleeve moves towards a release po- tion towards a forward release po- sition above the tapered shoulder 31 and on the cylindrical surface 29. The presence of the auxiliary slits 103 prevents stress buildup in the flange 100 and the portion 99 tapered outwardly when the cylindrical wall portion 97 expands. Referring now to Figure 14, there is shown another embodiment of the present invention wherein a male member 110 and a female member 111 are provided. The male member 110 of this embodiment is identical to the male member 20 of the embodiment presented in the figure. 3 with the exception that the external attack surface 27 'has an annular groove 112 in which it positions an annular seal 113 and a rigid plastic ring 114 passered between the ramp 28' and the annular seal 113. The purpose of the annular ring Rigid plastic eß protect the annular seal against damage particularly in those cases where the coupling is used in high-impurity applications. In such high-impulse applications, the rigid plastic ring 114 serves to prevent damage to the seal by means of its protection against contact with the exit corner 115 of the slot 112. The female member 111 is identical to the female member 30 of the embodiment presented in Figure 3 except for the fact that the second internal cylindrical surface 56 'continues until reaching the tapered wall portion 57' which widens outwards. Many modifications will be readily apparent to an expert in the field. Accordingly, the scope of the present invention is limited only by the scope of the appended claims.

Claims (49)

1. CLAIMS 1. A coupling assembly for connecting two members, comprising in combination: (a) a split locking ring having a first end and a second end, said first end and said second end are aligned to allow engagement of stop and define a hole that does not exceed 0.0762 cm; (b) a first member extending along an axis from a leading end towards a rear portion and having an external surface, a rib extending therefrom outwardly from said outer surface, said tab includes (i) A ramp that tapers in a direction away from said leading end and away from said axis at an angle within the range of 10 * to 25 * in relation to said axis, (ii)? a cylindrical surface parallel to said axis that ße extends backwards from said ramp over a distance of at least 0.0254 cm; and (iii) a shoulder tapers away from said forward end and inward toward said axis; and (c) a second member having an attack end and an attack portion extending therefrom to receive said first member, said attack portion having an internal surface, an annular groove facing inwardly to receive said split locking ring, said annular groove includes surfaces that extend outwardly from said inner surface in a position spaced from said leading end; wherein when said first member is inserted in said second member, said split locking ring moves up said ramp, on said cylindrical surface, and contracts to engage said shoulder.
2. 2. The coupling assembly in accordance with the rei indication 1 wherein said second member has an annular recess extending outwardly from said inner surface and a resilient annular seal received in said annular recess, a portion of said seal The annular portion extends towards the interior of said inner surface and where said first member has a seal portion between said leading end and said ramp, said seal portion having a size suitable for engaging said annular seal when engaging said first member in said second member. The coupling assembly according to claim 2 further including a rigid annular ring positioned in said annular recess such that a portion of said rigid annular ring is presently between said annular collar and said annular groove. is located inside said inner surface. 4. The coupling assembly according to claim 1 wherein said ramp tapers at an angle within the range of 16 * to 20"relative to said axis. 5. The coupling assembly according to the indication 1 where said cylindrical surface extends back from said ramp over a distance of at least 0.0762 cm. 6. The coupling assembly according to claim 1 wherein said second member is provided with a chamfer between said leading end and said annular recess, said chamfer going outwardly from said inner surface and extending there- toward. said annular recess. 7. The coupling flange according to claim 6 wherein said bevel is angled at a smaller angle relative to said axis than said shoulder. The coupling flange according to claim 1 wherein said shoulder is taut at an angle within the range of 35 * to 55 * relative to said axis, and said chamfer tapers at an angle within the range of 20 * a 40 * in relation to that axis. 9. The coupling assembly in accordance with. Claim 1 wherein said split locking ring is formed of resilient hardened stainless steel. The coupling assembly according to claim 1 further including a release sleeve movably mounted on said outer surface of said first member for movement from a backward position to a forward position, said sleeve having an edge facing towards said shoulder and having an attack portion extending from said edge, said attack portion having at least one slit; wherein said first member and said second member are released when said release sleeve is moved from a backward position to a forward position by pressing said split ring upwardly of said shoulder and said cylindrical surface. The coupling assembly according to claim 1 wherein said first member has an annular recess that extends inwardly from said external surface and a resilient annular shaft received in said annular recess, a portion of said annular εello located therein. outside said internal surface to engage with said said internal surface of the second member to engage said first member in said second member. The coupling assembly according to claim 11 further including a rigid annular ring positioned in said annular recess such that they are located axially between said leading end and said rib, a portion of said rigid annular ring is finds outward from said outer surface. 13. A coupling assembly for the connection of "two members, which comprises in combination: < a split locking ring having a first end and a second end, said first end and said second end are aligned to allow a stop hook and define a gap not exceeding 0.0762 cm; &bt; b > a first member extending along an axis from a forward end to a rear portion and having a surface externally, a rib extending outwardly from said outer surface, said rib includes (i) a ramp that shines in a direction away from said forward end and away from said axis at an angle within the range of 10 * to 25 * in relation to said axis, (ii) a cylindrical surface parallel to said axis that extends backwards from said ramp over a distance of at least 0.0254 cm, and (iii) a shoulder that tapers away e from said forward end and inward towards said axis; and (c) a second member having an attack end and an attack portion extending therefrom to receive said first member, said attack portion having an internal surface, an annular groove facing inwardly for receiving said split locking ring, said annular groove includes surfaces extending outwardly from said inner surface in a position spaced from said leading end; wherein on inserting said first member into said second member, said split locking ring moves up said ramp, on said cylindrical surface, and contracts to engage said shoulder; and (d) a release sleeve movably mounted on said outer surface of said first member for movement from a backward position to a forward position, said sleeve having an edge facing towards said shoulder and having a portion of an attack extending from said edge, said attack portion having at least one slit; whereby upon inserting said first member into said second member, said split locking ring travels up said ramp, onto said cylindrical surface and contracts to engage said shoulder and one of said said annular groove surface and said first member and said second member is released by moving said release sleeve from a backward position to a forward position by pressing said split ring upwardly of said shoulder and said cylindrical surface. 14. The coupling assembly in accordance with the rei indication 13 wherein said second member has an annular recess extending outwardly from said inner surface and a resilient annular seal received in said annular recess, a portion of said annular seal being extends inside said inner surface and where said first member has a seal portion between said leading end and said ramp, said portion of tieneello is sized to seally engage said annular seal upon hooking said first member in said second member . 15. The coupling assembly according to claim 14 further including a rigid annular ring positioned in said annular recess in such a way that axially located between said annular seal and said annular groove, a portion of said rigid annular ring is toward inside said inner surface. 16. The coupling assembly according to claim 13 wherein said first member has an annular recess that extends inwardly from said outer surface and a resilient annular seal received in said annular recess, a portion of said annular seal being found outside said outer surface to engage the inner surface of said second member when engaging said first member in said second member. 17. The coupling assembly according to claim 16 further including a rigid annular ring positioned in said annular recess such that it is located axially between said leading end and said rib, a part of said rigid annular ring is externally of said external surface. The coupling assembly according to claim 13 wherein said release sleeve includes a slit-free portion β extending axially from said attack portion, and a flange extending outwardly from said portion without slits. . 19. The coupling assembly in accordance with the rei indication 13 wherein said release sleeve includes an outwardly extending flange and an annular wall which extends from there spaced radially outwardly from said attack portion, said annular wall. influences an internal surface of adequate size to receive said second member in contact engagement. 20. The coupling assembly according to claim 19 wherein said release sleeve further includes a seal flap q? E extending inwardly from said flange in seal engagement with said first member. The coupling assembly according to claim 19 wherein said annular wall is resilient and has a flange extending inwardly from said inner surface and an attack portion of said second member having an outer surface and an annular groove. formed on said external surface, said annular groove is arranged to receive said flange when hooking said first member in said second member. 22. The coupling assembly according to claim 19 wherein said first member has a radially extending collar in the vicinity of the flange extending outwardly of said release sleeve, said collar having a radial extension at least equally large as the radial extension of said flange. 23. The coupling assembly according to claim 13 wherein said ramp tapers at an angle within the range of 16 * to 20 * relative to said axis. 24. The coupling assembly according to claim 13 wherein said cylindrical surface extends back from said ramp over a distance of at least 0.0762 cm. The coupling assembly according to claim 13 wherein said second member is provided with a chamfer between said leading end and said annular recess, said bevel tapers outwardly from said inner surface and extends toward said recess cancel. 26. The coupling flange according to claim 25 wherein said chamfer is angled at a smaller angle relative to said axis than said shoulder. 27. The coupling assembly in accordance with the rei indication 26 wherein said shoulder tapers at an angle within the range of 35 * to 55 * relative to said axis, and said chamfering is tapering to an angle within the range of 20 * to 40 * in relation to said axis. 28. The coupling assembly according to claim 13 wherein said split locking ring is formed of resilient hardened stainless steel. 29. The coupling assembly according to claim 13 wherein said second member strike end includes an exposed face that extends radially beyond said inner portion of the strike portion and said release sleeve includes a flange that is extends radially outwardly beyond said inner surface of the attack portion, said flange includes a radially internal portion axially spaced from said exposed face when said first member is engaged in said second member. The coupling assembly according to claim 29 wherein said flange includes a radially external portion defining a circular crown in contact with said exposed face. 31. A coupling assembly comprising (a) a male member extending from a leading end to an outlet end, a first cylindrical outer surface extending from said leading end, a second external surface. cylindrical spaced apart said first cylindrical outer surface and one rib between said first cylindrical outer surface and said second cylindrical outer surface, said rib includes (i) a ramp that extends outward and that moves axially away from said first cylindrical surface external to an angle within the range of 10 * to 25 * in relation to said axis, (ii) a portion of cylindrical external surface parallel to said axis that has a minimum axial distance of 0.0254 cm and (iii) a shoulder that tapers towards inside and away from said portion of cylindrical external surface and a release sleeve surrounding said external surface cilind cylindrical surface a, said release sleeve includes a split cylindrical wall portion having an attack end facing said shoulder and a flange extending eastwardly spaced from said leading end; and (b) female member that includes a receiving end with a cavity of adequate size to receive said male member, said cavity includes a first cylindrical surface facing inwardly adjacent said receiving end of suitable size to receive said rib , an inwardly facing annular groove extending outwardly from said first cylindrical surface facing inwardly, and a second inwardly facing surface of adequate size to receive said male member and a first external cylindrical surface; and < c) a split locking ring poised in said annular groove facing inwardly of the female member and of suitable size for displacement in said annular groove, said split locking ring having a first end and a second end aligned to be in a support ratio and has a gap that does not exceed 0.0762 cm, said split locking ring has an internal diameter of adequate size to receive said first cylindrical outer surface portion of male member and to be engaged and expanded there is a larger radial size for said ramp on moving said male member further into said cavity, said split locking ring retracts in a resiliently diatric size as said male member moves to a position in which said tapered shoulder is axially aligned with said split locking ring. The coupling assembly according to claim 31 wherein said female member has an annular recess extending outwardly from said second cylindrical surface facing inwardly and a resilient annular ring received in said annular recess, a part of said annular seal meeting inwardly of said cylindrical surface facing inwardly and wherein said first cylindrical outer surface of male member has a size suitable for sealingly engaging said annular seal upon engaging said male member with said female member. The coupling assembly according to claim 32 further including a rigid annular ring positioned in said annular recess such that it is located axially between said annular seal and said annular groove, a portion of said rigid annular ring is located into that inner surface. 34. The coupling assembly according to the rei indication 31 where said ramp tapers at an angle within the range of 16 * to 20 ° relative to said axis. 35. The coupling assembly according to claim 31 wherein said cylindrical surface extends backwardly from said ramp over a distance of at least 0.0762 cm. 36. The coupling assembly according to claim 31 wherein said female member is provided with a chamfer between said leading end and said annular groove.said chamfer ß tapers outwards from a first cylindrical surface facing inwardly and extending to said annular groove. 37. The coupling assembly according to claim 36 wherein said chamfer tapers at a smaller angle relative to said axis than said shoulder. 38. The coupling assembly according to claim 37 wherein said shoulder tapers at an angle within the range of 35 * to 55 * relative to said axis, and said chamfer tapers at an angle within the range of 20 ° to 40 * in relation to that axis. 39. The coupling assembly according to claim 31 wherein said split locking ring is formed of resilient hardened stainless steel. 40. The coupling assembly according to claim 31 wherein said male member has an annular recess extending inwardly from said first cylindrical outer surface and a resilient annular seal received in said annular recess, a portion of said annular seal. It is located towards the outside of said first cylindrical external surface in order to seally engage said second face facing inwardly of the female member when said first member is hooked with said second member. 41. The coupling assembly according to claim 40 further including a rigid annular ring positioned in said annular recess such that it is axially between said annular seal and said rib, a portion of said rigid annular ring is facing the outside of said first cylindrical outer surface. 42. The coupling assembly according to claim 31 wherein said release sleeve includes a slot-free portion extending axially from said attack portion, and a flange extending therefrom from said portion without crevices. . 43. The coupling assembly according to claim 31 wherein said release sleeve includes a flange extending to the outside and an annular wall extending thereon spaced radially outwardly from said split cylindrical wall portion, said annular wall includes an internal surface of suitable size for receiving said second female member in contact engagement. 44. The coupling assembly according to claim 43 wherein said release sleeve further includes a sealing fin which extends inwardly from said flange in sealing engagement with said male member. 45. The coupling assembly according to claim 43 wherein said annular wall is resilient and has a flange which extends inwardly from said inner surface and said female member has an outer surface and an annular groove formed in said surface external, said annular groove is positioned to receive said flange when engaging said male member with said female member. 46. The coupling assembly according to claim 43 wherein said male member has a radially extending collar in the vicinity of said flange which extends to the outside of the release sleeve, said collar having a radial extension at such a large extent. as the radial extension of said flange. 47. The coupling flange according to claim 31 wherein said female member receiving end includes an exposed face extending radially outwardly beyond said cavity and said release sleeve includes a flange extending radially toward it. the exterior beyond said cavity, said flange includes a radially internal portion axially spaced from said exposed face when said male member is engaged with said female member. 48. The coupling assembly according to the indication 47 where said flange includes a radially external part defining a circular crown in contact with said exposed face. 49. The coupling assembly comprising < a > a male member extending from one leading end to an outlet end, a first outer cylindrical surface extending from said leading end, a second cylindrical outer surface spaced from said first cylindrical outer surface and a rib between said first cylindrical outer surface and said second cylindrical outer surface, said rib includes (i) a ramp that extends outwards and that moves axially away from said first outer cylindrical surface at an angle within the range of 10 ° to 25 ° in relation to said axis, (ii) a portion of cylindrical external surface parallel to said axis having a minimum axial distance of 0.0254 cm and (iii) a shoulder tapering inwardly and moving axially away from said portion of external surface Cylindrical and (b) a female member that includes a receiving end with a cavity of adequate size to receive said male member, said cavity includes a first cylindrical surface facing inwardly adjacent said receiving end of suitable size to receive said rib , an inwardly facing annular groove extending outwardly from said first cylindrical surface facing "inwardly," and a second inward facing surface of adequate size to receive said male member's striking end and a first external cylindrical surface, and < c) a split locking ring positioned in said annular groove facing inwardly of the female member and of suitable size for movement in said annular groove, said split locking ring having a first end and a second end aligned to be in a support relationship and has a gap not greater than 0.0762 cm , said split locking ring has an internal diameter of adequate size to receive said first cylindrical outer surface portion of male member and to be engaged and expanded to a larger radial size by said ramp to deßplazarße said male member further inside said cavity said split locking ring retracts with respect to its diameter size in a manner responsive to the movement of said male member towards a position in which said tapered shoulder is generally aligned with said split locking ring.