Plug connection arrangement consisting of socket and connector

Abstract

Plug connection arrangement (1) comprising a connector socket (20) and a connector stub (30) which has a connection structure (38) at a free end (39) having a first radially circumferential bead-shaped projection (31) and a second radially circumferential bead-shaped projection (32) which are spaced apart from each other in the axial direction (A) and a sealing means (35) is provided between the first radially circumferential bead-shaped projection (31) and the second radially circumferential bead-shaped projection (32), wherein the second radially circumferential bead-shaped projection (32) has a larger diameter (34) than the first radially circumferential bead-shaped projection (31), the connector socket (20) has a first cylindrical bore (21) and a second cylindrical bore (22),in which the first bead-shaped projection (31) of the connecting piece (30) is slidably guided and the second bead-shaped projection (32) of the connecting piece (30) abuts a shoulder (25) of the connecting sleeve (20) and wherein a clamp (40) is inserted into the connecting sleeve (20) such that the clamp (40) holds the second bead-shaped projection (32) of the connecting piece (30) in operative relation to the shoulder (25) of the connecting sleeve (20), wherein the clamp (40) presses the second bead-shaped projection (32) against the shoulder (25) of the connecting sleeve (20), wherein the clamp (40) abuts the second bead-shaped projection (32), characterized in that the connecting sleeve (20) has a circumferential radial groove (26) which on both sides of a longitudinal axis (L) provides a passage (28) for the clamp (40) to the interior the first cylindrical bore (21) has.

Description

[0001] The present invention relates to a plug-in connection arrangement comprising a connecting socket and a connecting piece. The connecting piece has a connecting structure formed at a free end, which has a first radially encircling bead-shaped elevation and a second radially encircling bead-shaped elevation. The first radially encircling bead-shaped elevation and the second radially encircling bead-shaped elevation are axially spaced from one another. A sealing means is provided between the first radially encircling bead-shaped elevation and the second radially encircling bead-shaped elevation.

[0002] German patent application DE 10 2007 003 048 A1 discloses a plug-in connection arrangement for connecting pressure lines of a hydraulic system. The plug-in connection arrangement comprises a connecting element designed as a connection socket, which can be connected to a connection piece. The connection socket and the connection piece are each provided at one end of the pressure lines to be connected. The plug-in connection arrangement further comprises at least one sealing element for sealing and a locking device for jointly fastening the connecting elements. The connection piece has at least one receiving area for receiving a sealing agent.

[0003] German patent application DE 10 2014 218 396 A1 discloses a connecting arrangement. A connecting arrangement for connecting a pressure line to a hydraulic system, in particular to a clutch release system of a motor vehicle, is disclosed. The connecting piece has a bead at one free end. The bead is received by the receiving bushing and secured to the receiving bushing by squeezing or crimping the ends of the receiving bushing. The end of the receiving bushing thus engages around the bead of the connecting piece, thereby establishing a fundamentally permanent connection between the two connecting elements (connecting piece and connecting bushing).

[0004] From US 5 964 483 A a plug connection arrangement comprising a connection socket and a connection piece according to the features of the preamble of claim 1 of the present invention is known.

[0005] The present invention is based on the object of creating a plug connection arrangement comprising a connection socket and a connection piece, so that a safe and tight plug connection arrangement can be provided which reduces the necessary components and dispenses with work steps, so that the costs for the plug connection arrangement can be reduced.

[0006] This object is achieved by a plug connection arrangement comprising a connection socket and a connection piece, which comprises the features of claim 1.

[0007] The plug connection arrangement according to the invention consists of a connection socket and a connection piece. The connection piece has a connecting structure formed at a free end. The connecting structure consists of a first radially circumferential bead-shaped elevation and a second radially circumferential bead-shaped elevation. The first radially circumferential bead-shaped elevation is spaced axially from the second radially circumferential bead-shaped elevation.

[0008] A sealing means is provided between the first radially encircling bead-shaped protrusion and the second radially encircling bead-shaped protrusion. The second radially encircling bead-shaped protrusion has a larger diameter than the first radially encircling bead-shaped protrusion. The connecting sleeve has a second cylindrical bore in which the first bead-shaped protrusion of the connecting piece is slidably guided. When the connecting piece is inserted into the connecting sleeve, the second bead-shaped protrusion of the connecting piece rests against a shoulder of the connecting sleeve.

[0009] The second bead-shaped protrusion of the connecting piece can be guided in a first cylindrical bore of the connecting socket. A radially circumferential sealing means provided between the first bead-shaped protrusion and the second bead-shaped protrusion cooperates with the second cylindrical bore to form a seal when the second bead-shaped protrusion of the connecting piece rests against the shoulder of the connecting socket.

[0010] To ensure a reliable connection between the connection socket and the connection piece, a clamp can be inserted into the connection socket in such a way that the clamp holds the second bead-shaped elevation of the connection piece in operative connection with the shoulder of the connection socket.

[0011] The connecting sleeve has a radially circumferential notch for inserting the clamp. This radially circumferential notch has a passage for the clamp on either side of the longitudinal axis. This allows the clamp to enter the interior of the first cylindrical bore and interact with the second bead-shaped protrusion of the connecting piece, forcing it against the shoulder of the connecting sleeve.

[0012] The clamp itself has a formed leg which, when inserted, rests against the base of the radially circumferential notch. The advantage of the plug-in connection arrangement according to the invention is that the O-ring (sealant) is mounted directly on the connecting piece. This arrangement eliminates the need for additional connecting means. The arrangement of the sealant on the connecting piece and the special design of the shoulder in the connecting socket and the second bead-like elevation on the connecting piece ensure secure insertion of the connecting piece into the connecting socket. When the second bead-like elevation rests against the shoulder of the connecting socket, a sealing effect of the sealant with the first hole in the connecting socket is achieved.Secure fastening is ultimately achieved by a clamp that acts on the second bead-shaped protrusion of the connector, thus pressing the connector against the shoulder of the connector socket. The design of this new connector arrangement thus reduces manufacturing costs and parts.

[0013] The invention and its advantages will now be explained in more detail by means of exemplary embodiments, without thereby limiting the invention to the embodiment shown. The proportions in the figures do not always correspond to the actual proportions, as some shapes are simplified and others are enlarged relative to other elements for better illustration. In the drawings: Fig. 1 is a cross-sectional view of a prior art connector assembly; Fig. 2 shows a cross section through another embodiment of a plug connection arrangement of the prior art; Fig. 3 a sectional view of a connecting piece according to the invention which is used in the plug connection arrangement according to the invention; Fig. 4 a sectional view through a connection socket according to the invention, which is used in the plug connection arrangement according to the invention; and Fig. 5 a sectional view of the plug connection arrangement according to the invention, in which the connection piece according to the invention and the connection socket according to the invention interact.

[0014] Identical reference numerals are used for identical or equivalently functioning elements of the invention. Furthermore, for the sake of clarity, only those reference numerals are shown in the individual figures that are necessary for the description of the respective figure.

[0015] Fig. 1 shows a cross-sectional view of a plug connection assembly 1 according to the prior art. The plug connection assembly 1 consists of a connecting piece 30 and a connecting socket 20. The connecting piece 30 comprises a line 7 having a bead 8 formed at one end. The line 7 is inserted into the connecting socket 20 with the bead 8. To connect the connecting socket 20 and the connecting piece 30, the area of ​​the connecting socket 20 that is associated with the bead 8 of the connecting piece 30 is crimped or crimped. This creates a force-fitting and form-fitting connection between the connecting piece 30 and the connecting socket 20.

[0016] Fig. 2 shows a further embodiment of a plug connection arrangement 1 according to the prior art. A connection piece 30 is seated in a connection socket 20. The connection piece 30 has a first radially circumferential, bead-shaped elevation 31 and a second axially offset, bead-like elevation 32. Between the first radially circumferential, bead-like elevation 31 and the second radially circumferential, bead-like elevation 32 is a sealing means 35 which cooperates sealingly with a cylindrical bore 15 of the connection socket 20 when the connection piece 30 is inserted into the bore 15 of the connection socket 20. The free end 39 of the connection piece 30 rests against an annular cone 19 of the connection socket 20 in the inserted state. The connection piece 30 has a notch 26.A clamp 40 can be inserted into the notch 26, which clamp rests against a bead-shaped stop 10 of the connecting piece 30 and thus urges the connecting piece 30 in the direction of the annular cone 19 of the connecting socket 20.

[0017] Fig. 3 shows a sectional view through a connecting piece 30 according to the invention, which is used in the plug connection arrangement 1 according to the invention (see Fig. 5) is used. A first bead-shaped and radially circumferential elevation 31 is formed at a first end 39 of the connecting piece 30. A second radially circumferential bead-shaped elevation 32 is formed in the axial direction A to the first bead-shaped, radially circumferential elevation 31. A radially circumferential sealing means 35 is located between the first radially circumferential bead-shaped elevation 31 and the second radially circumferential elevation 32. The first bead-shaped elevation 31 and the second bead-shaped elevation 32 form a connecting structure 38 of the connecting piece 30. A line 7 of the connecting piece 30 is connected to the second bead-shaped elevation 32. The first bead-shaped elevation 31 has a diameter 33 that is smaller than a diameter 34 of the second bead-shaped elevation 32.The purpose of the design of the first bead-shaped elevation 31 with the diameter 33 and the second bead-shaped elevation 32 with the diameter 34 is achieved in cooperation with the connection socket 20 according to the invention (see . Fig. 5). The first bead-shaped elevation 31 and the second bead-shaped elevation 32 are aligned coaxially with a longitudinal axis L.

[0018] Fig. 4 shows a sectional view through a connection socket 20 according to the invention, which is connected to the connection piece 30 according to the invention (see Fig. 3) can cooperate. In the axial direction A, from a free end 29 of the connection socket 20, there extends a first cylindrical bore 21 which ends at a radially circumferential shoulder 25 within the connection socket 20. A second cylindrical bore 22 extends from the radially circumferential shoulder 25. The first cylindrical bore 21 and the second cylindrical bore 22 are aligned coaxially with respect to a longitudinal axis L. The first cylindrical bore 21 has a diameter 23 which is larger than a diameter 24 of the second cylindrical bore 22. The connection socket 20 also has a radially circumferential notch 26 in the region of the shoulder 25. Starting from the notch 26, two passages 28 are formed on both sides of the longitudinal axis L and extend into the interior of the first cylindrical bore 21. A pressure line 9 of the connection socket 20 is connected to the second cylindrical bore 22.

[0019] Fig. 5 shows a sectional view along the longitudinal axis L of the plug connection arrangement 1 according to the invention. The connecting piece 30 is seated in the connecting socket 20. The connecting piece 30 is guided in the first bore 22 of the connecting socket 20 by the first bead-shaped elevation 31 formed on the free end 39 of the connecting piece 30. Likewise, when inserting the connecting piece 30, it is guided by the second bead-shaped elevation 32 on the first cylindrical bore 21 of the connecting piece 30. Since the diameter 23 of the first cylindrical bore 21 of the connecting socket 20 is equal to the diameter 34 of the second bead-shaped elevation 32 and the diameter 24 of the second cylindrical bore 22 of the connecting piece 30 is equal to the diameter 33 of the first bead-shaped elevation 31 of the connecting piece 30, a secure and jam-free insertion of the connecting piece 30 into the connecting socket 20 is ensured.When the connecting piece 30 is inserted into the connecting socket 20, the sealing means 35 rests against the second cylindrical bore 22 of the connecting socket 20. Likewise, the position of the connecting piece 30 in the direction of the longitudinal axis L is determined by a radially circumferential shoulder 25 of the connecting socket 20. This radially circumferential shoulder 25 limits the insertion of the connecting piece 30, with the second radially circumferential bead-like elevation 32 resting against the shoulder 25. A clamp 40 is provided for the permanent connection or firm fit of the connecting piece 30 in the connecting socket 20. The connecting socket 20 has a radially circumferential notch 26 for inserting the clamp 40. On both sides of the longitudinal axis L, through-holes 28 (see . Fig.4). Through the through-holes 28, the clamp 40 comes into operative connection with the second bead-shaped elevation 32 of the connecting piece 30. The clamp 40 has a formed leg 42 which, when inserted, comes into contact with a base 26B of the radially circumferential notch 26. The clamp 40 acts on the second bead-shaped elevation 32 of the connecting piece 30 in such a way that the latter is pressed against the shoulder 25 of the connecting socket 20. In conjunction with the sealing means 35 provided on the connecting piece 30, in operative connection with the second bore 22 of the connecting socket 20, an effective seal of the plug-in connection arrangement 1 is then achieved. List of reference symbols 1 Plug connection arrangement 7 Pressure line 8 bulge 9 Pressure line 10 bead-shaped stop 15 Hole 19 annular cone 20 connection socket 21 first cylindrical bore 22 second cylindrical bore 23 diameters 24 diameters 25 paragraph 26 Notch 26B Base 28 penetration 29 free end 30 connecting pieces 31 first bulge-shaped elevation 32 second bulge-shaped elevation 33 diameter 34 diameter 35 Sealants 38 Connection structure 39 free end 40 brackets 42 legs A axial direction L Longitudinal axis

Claims

[1] Plug connection arrangement (1) comprising a connection socket (20) and a connection piece (30) which has a connecting structure (38) formed at a free end (39) which has a first radially encircling bead-shaped elevation (31) and a second radially encircling bead-shaped elevation (32) which are spaced apart from one another in the axial direction (A), and a sealing means (35) is provided between the first radially encircling bead-shaped elevation (31) and the second radially encircling bead-shaped elevation (32), wherein the second radially encircling bead-shaped elevation (32) has a larger diameter (34) than the first radially encircling bead-shaped elevation (31), the connection socket (20) has a first cylindrical bore (21) and a second cylindrical bore (22),in which the first bead-shaped elevation (31) of the connecting piece (30) can be guided in a sliding manner and the second bead-shaped elevation (32) of the connecting piece (30) bears against a shoulder (25) of the connecting socket (20), and wherein a clamp (40) is inserted into the connecting socket (20) in such a way that the clamp (40) holds the second bead-shaped elevation (32) of the connecting piece (30) in operative connection with the shoulder (25) of the connecting socket (20), wherein the clamp (40) presses the second bead-shaped elevation (32) against the shoulder (25) of the connecting socket (20), wherein the clamp (40) bears against the second bead-shaped elevation (32), , characterized by that the connecting socket (20) has a circumferential radial notch (26) which has a passage (28) for the clamp (40) to the interior of the first cylindrical bore (21) on both sides of a longitudinal axis (L). [2] Plug connection arrangement (1) according to claim 1, wherein the second bead-shaped elevation (32) of the connecting piece (30) can be guided in the first cylindrical bore (21) of the connecting socket (20) and the radially circumferential sealing means (35) provided between the first bead-shaped elevation (31) and the second bead-shaped elevation (32) cooperates in a sealing manner with the second cylindrical bore (22) when the second bead-shaped elevation (32) bears against the shoulder (25) of the connecting socket (20). [3] Plug connection arrangement (1) according to claim 1 or 2, wherein the clamp (40) has a leg (42) formed which, in the inserted state, is in contact with a base (26B) of the radially circumferential notch (26).

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