DE102015113871A1 - Connectors - Google Patents

Abstract

The present invention relates to a connector (100) for establishing a fluid connection with a connecting piece (103) which comprises an outer circumferential groove (105), with an insertion piece (101) which can be inserted into the connecting piece (103); a spring (107) for fixing the insertion piece (101) to the connection piece (103), wherein the spring (107) has a first spring portion (107-1) for engaging in the groove (105) of the connection piece (103), a second spring portion (107-2) for engaging in the groove (105) of the connecting piece (103) and a spring bar (107-3) for pressing the spring (107) in the direction of the Einsteckstutzens (101); unlocking means (117) for spreading the first and second spring portions (107-1, 107-2) to release the spring (107) from the groove (105); and a spring housing (115), wherein the spring housing (115) comprises a first wall (115-1) and a second wall (115-2) which are arranged one above the other and connected to each other by a web (115-3).

Description

The present invention relates to a connector for establishing a fluid connection.

The publication DE 10 2012 005 929 A1 describes a connector assembly for releasably connecting fluid lines. To lock the connector assembly is a fixing in a slot. The fixing element is pulled out of the radial insertion opening to solve the connector nondestructive.

It is the object underlying the invention to provide a connector for a fluid line, which can be solved in a simpler manner.

This object is achieved by the subject matter having the features of the independent claim. Advantageous embodiments of the invention are the subject of the figures, the description and the dependent claims.

According to one aspect of the invention, the object is achieved by a connector for establishing a fluid connection with a connecting piece, which comprises an outer circumferential groove; with a plug-in, which is insertable into the connecting piece; a spring for fixing the Einsteckstutzens on the connecting piece, wherein the spring comprises a first spring portion for engaging in the groove of the connecting piece, a second spring portion for engaging in the groove of the connecting piece and a spring bar for pressing the spring in the direction of the Einsteckstutzens; unlocking means for spreading the first and second spring portions to release the spring from the groove; and a spring housing, wherein the spring housing comprises a first wall and a second wall, which are arranged one above the other and connected to each other by a web.

As a result, for example, the technical advantage is achieved that the design of the connector easy assembly and disassembly of the connector is achieved on the connection piece. Since the spring housing consists of two superimposed walls, which are interconnected by a web, the dimensions of the spring housing can be significantly reduced compared to a closed spring housing. As a result, the size of the connector can be reduced in total, whereby a greater latitude in the laying of cables to the connector is present. In addition, a better rotation of the connector is ensured on the connection piece. In addition, the connector can be made of high quality polymers, such as Polyphthalamide polymer or polyphenylene sulfide polymer, which may optionally be added with glass fibers, are manufactured, whereby a high pressure and temperature stability of the connector can be ensured.

In an advantageous embodiment of the connector, the spring housing is laterally circumferentially open to introduce the spring laterally into the spring housing. As a result, for example, the technical advantage is achieved that the spring can be effectively inserted into the spring housing and can be accommodated between the two walls in the spring housing. This prevents inadvertent damage to the spring before or during assembly.

In a further advantageous embodiment of the connector of the first spring portion and the second spring portion are cross-resilient or mirror-image juxtaposed resiliently connected by a spring bar.

As a result, for example, the technical advantage is achieved that an effective leverage is ensured by the spring connection of the first spring portion and the second spring portion by means of the spring bar during actuation of the spring bar and thus a reduction of the necessary force is achieved.

In a further advantageous embodiment of the connector, the first spring section has a first pin and the second spring section has a second pin, wherein the spring housing has a first recess for receiving the first pin and a second recess for receiving the second pin to the first and Position second spring portion on the spring housing. As a result, for example, the technical advantage is achieved that an effective positioning of the pins on the spring housing and thus effective stabilization of the spring are ensured on the spring housing by the inclusion of the respective pins in the corresponding recesses of the spring housing.

In a further advantageous embodiment of the connector, the unlocking device is arranged on the spring housing and comprises a first guide slope, which extends from the first recess away from the spring, and comprises a second guide slope which extends away from the second recess of the spring extends, wherein the first pin disposed on the first guide slope and the second pin on the second guide slope movable and wherein the first pin and the second pin upon displacement of the spring along the first guide slope and the second guide slope are slidable to spread the first and second spring portion. As a result, for example, the technical advantage is achieved that upon pressing the spring by moving the two pins of the spring along the respective guide slopes effective spreading of the first and second spring portion is made possible.

In a further advantageous embodiment of the connector, the unlocking device comprises a stop for spreading the first and the second spring portion when pressing the spring, wherein the stop and the spring bar of the spring are arranged on the same side of the connector. Thereby, for example, the technical advantage is achieved that an effective spreading of the first and second spring portion is made possible by the concerns of the spring portions of the spring on the stop at a pressure of the spring.

In a further advantageous embodiment of the connector, the stop comprises a first stop region for spreading the first spring section and a second stop region for spreading the second spring section, the first stop region and the second stop region being connected to one another. As a result, the technical advantage is achieved, for example, that the stop each having a separate stop area for the first and second spring portion, so that when pressing the spring, an effective leverage is achieved.

In a further advantageous embodiment of the connector, the connector comprises a spacer for mutual spacing of the first spring portion and the second spring portion. As a result, for example, the technical advantage is achieved that the spring sections are located by the spacer in a defined rest position. As a result, the spring sections can automatically spread when placing the connector on the spigot until they engage in the circumferential groove.

In a further advantageous embodiment of the connector, the spacer is arranged on one side of the connector, which faces the spring bar of the spring. As a result, the technical advantage is achieved, for example, that can be exactly position the spring sections.

In a further advantageous embodiment of the connector, the spacer is semicircular, so that the spring when inserting into the connector on the spacer can slide past. As a result, for example, the technical advantage is achieved that a particularly effective actuation of the spring can be ensured by the semicircular configuration of the spacer to transfer the connector from a locked position to an unlocked position.

In a further advantageous embodiment of the connector, the spacer comprises a securing projection for fixing the spring against withdrawal. As a result, the technical advantage is achieved, for example, that accidental slipping out of the spring is prevented from the connector.

In a further advantageous embodiment of the connector, the spring bar is formed by a straight portion of the spring. As a result, for example, the technical advantage is achieved that the spring can be manually pressed with a high force.

In a further advantageous embodiment of the connector, the connector has a further spacer, which is formed when pressing the spring to stop the movement of the spring when the spring bar comes into contact with the other spacer, and wherein the further spacer and the spring bar on the same side of the connector are arranged. As a result, the technical advantage is achieved, for example, that at a pressure of the spring, the spring is not pushed too far into the spring housing, whereby damage to the connector can be prevented.

In a further advantageous embodiment of the connector, the unlocking device is arranged such that upon pressing on the spring bar of the spring, a leverage is exerted on the first spring portion and the second spring portion. As a result, for example, the technical advantage is achieved that a smooth unlocking of the connector is made possible.

In a further advantageous embodiment of the connector, the connector comprises stub ribs for supporting the connector to the connection piece. As a result, for example, the technical advantage is achieved that the plugging of the connector is facilitated by a self-centering.

In a further advantageous embodiment of the connector, the connector comprises a centering rib for supporting the connector to the connecting piece. As a result, for example, the technical advantage is achieved that the centering ribs are arranged completely around the opening for insertion of the connecting piece around can be. In addition, the stability of the stopper is improved by the centering rib. The stop may be located near the opening for insertion of the connecting piece.

In a further advantageous embodiment of the connector, the connector comprises a polyphthalamide polymer, polyphenylene sulfide polymer, polyamide polymer, glass fibers or mixtures thereof. As a result, for example, the technical advantage is achieved that an efficient production of the connector is ensured by said polymers, and in particular a high pressure and temperature stability of the connector is ensured.

In a further advantageous embodiment of the connector, the spring is formed from bent round wire. As a result, for example, the technical advantage is achieved that the spring can be produced in a simple manner.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Show it:

1 a perspective view of a connector;

2 a further perspective view of the connector with uninstalled spring according to a first embodiment;

3 a further perspective view of the connector with uninstalled spring according to a second embodiment;

4 a cross-sectional view through the connector in the locked state according to the first embodiment;

5 a cross-sectional view through the connector in the locked state according to the second embodiment; and

6 another perspective view of the connector with spring mounted according to the second embodiment.

1 shows a perspective view of a connector 100 , The connector 100 serves to establish a fluid connection, such as for a fuel line in an engine of a motor vehicle.

The connector 100 includes a spigot 101 for insertion into a connecting piece 103 , The spigot is in particular in a connection opening 104 of the connecting piece 103 introduced. The connecting piece 103 includes an outer circumferential groove 105 , A feather 107 serves to lock the insertion tube 101 on the connecting piece 103 by putting these in the groove 105 of the connecting piece 103 engages and the connector 100 locked. The spigot 101 includes a sealing ring 121 for sealing the gap between the male 101 and the connecting piece 103 , Will the spring 107 by pressing a spring bar 107-3 pressed, the locking of the connector 100 solved. The connector 100 so can from the spigot 103 be pulled down.

The connector 100 includes a spring housing 115 in which the spring 107 is recorded. The spring housing 115 includes a first wall 115-1 and a second wall 115-2 which are arranged one above the other and by webs 115-3 connected to each other. The spring housing 115 is laterally opened circumferentially, whereby the spring 107 laterally in the spring housing 115 can be introduced. The inserted spring 107 is between the first wall 115-1 and the second wall 115-2 in the spring housing 115 arranged. At the first wall 115-1 of the spring housing 115 is an arched indentation 115-4 arranged it to the user of the connector 100 to facilitate the spring 107 to press.

The spring bar 107-3 the feather 107 is accessible from outside on the connector 100 arranged, whereby a manual pressing of the spring bar 107-3 in the direction of the insertion tube 101 is possible. The spring housing 115 , which is laterally circumferentially open, forms an enclosure through which the spring 107 is protected. This can cause them to get stuck during installation and accidentally damage the spring 107 be prevented before or during assembly.

The feather 107 includes a first spring portion 107-1 and a second spring portion 107-2 , which cross over resiliently by means of the spring bar 107-3 are connected. The first spring section 107-1 is about a first spring deflection 107-4 with one end of the spring bar 107-3 connected. The second spring section 107-2 is about a second spring deflection 107-5 with the other end of the spring bar 107-3 connected.

Because the spring housing 115 is circumferentially open, the dimensions of the spring housing 115 and therefore the size of the connector 100 be reduced overall. This can, inter alia, a greater latitude in the laying of with the connector 100 connected lines can be achieved, and in addition can be a rotation of the connector 100 on the spigot 103 be ensured. Furthermore, the use of high quality polymers in the manufacture of the connector 100 possible. Polyphthalamide polymers or polyphenylene sulfide polymers can be used with particular preference, with glass fibers optionally being able to be incorporated into the polymer layers. By the use of said polymers is an advantageous temperature and pressure stability of the connector 100 reached. Alternatively or additionally, polyamide polymers in the connector 100 be used.

The spigot 101 is T-shaped with a first side neck 123-1 and a second side neck 123-2 connected, which laterally from the Einsteckstutzen 101 protrude from, are arranged at an obtuse angle to each other and serve to attach hose lines. The first and second side sockets 123-1 and 123-2 are via a nozzle connection 123-3 with the plug 101 connected. The first and second side sockets 123-1 and 123-2 each has a first nozzle opening 123-4 and a second nozzle opening 123-5 on which at a first nozzle head 123-6 and a second nozzle head 123-7 is arranged to fluid from the fluid line into the spigot 101 to lead. The first and second side sockets 123-1 and 123-2 each has a first neck bead 123-8 and a second neck bead 123-9 on, wherein between the first and second neck bead 123-8 and 123-9 and the first and second stub heads 123-6 and 123-7 in each case a first and second nozzle section 123-10 and 123-11 is arranged.

Above the two side sockets 123-1 and 123-2 is a wing-like protective plate 125 arranged the two angled side branches 123-1 and 123-2 covered. The protective plate 125 is over vertical support surfaces 125-1 and 125-2 with the two side sockets 123-1 and 123-2 connected. The wing-like protective plate 125 has protective ribs 125-3 on which in the middle of the protective plate top 125-4 are arranged. From those in the middle of the protection plate top 125-4 arranged protective ribs 125-3 each extends a protective edge 125-5 to the edges of the protective plate top 125-4 ,

The wing-like protective plate 125 over the side neck 123-1 and 123-2 results in a larger pressure surface for mounting and protects the side nozzles 123-1 and 123-2 from damage. In addition, the protective plate 125 and the side sockets 123-1 and 123-2 over trapezoidal supporting surfaces 125-6 and 125-7 with the spring housing 115 connected. This framework-like structure is a high stability of the connector 100 reached.

2 shows a further perspective view of the connector 100 with pulled out spring 107 according to a first embodiment. With regard to the designation of the characteristics of the protective plate 125 will be on 1 directed. The feather 107 includes two opposite spring sections 107-1 and 107-2 to engage in the groove 105 of the connecting piece 103 , The two spring sections 107-1 and 107-2 are cross over resilient by means of a spring bar 107-3 the feather 107 connected, wherein between the first and second spring portion 107-1 and 107-2 and the spring bar 107-3 each a first spring deflection 107-4 and a second spring deflection 107-5 is arranged.

At the first and second spring deflection 107-4 and 107-5 closes in each case a first and second intersection section 107-6 and 107-7 at, wherein the first intersection section 107-6 the second crossing section 107-7 crosses. To the first and second crossing section 107-6 and 107-7 closes in each case a first and second spring projection 107-8 and 107-9 at. At the first and second spring projection 107-8 and 107-9 closes in each case a first and second engaging portion 107-10 and 107-11 at, wherein the first and second engaging portion 107-10 and 107-11 each from opposite sides into the groove 105 of the connecting piece 103 engage around the spigot 101 on the connecting piece 103 to fix. To the first and second engaging section 107-10 and 107-11 closes in each case a first and second end portion 107-12 and 107-13 the feather 107 at.

In the manufacture of the connector 100 becomes the spring 107 from the outside in the laterally circumferentially open spring housing 115 pushed and between the first wall 115-1 and the second wall 115-2 in the spring housing 115 positioned.

3 shows a further perspective view of the connector 100 with pulled out spring 107 according to a second embodiment. According to the in 2 illustrated spring 107 , includes the spring 107 according to 3 also two opposite spring sections 107-1 and 107-2 to engage in the groove 105 of the connecting piece 103 , wherein the two spring sections 107-1 and 107-2 resilient by means of the spring bar 107-3 the feather 107 are connected. With regard to the designation of the elements of the spring 107 and the protective plate 125 will be on 1 and 2 directed.

In the in 3 illustrated spring 107 are the two spring sections 107-1 and 107-2 but not over the cross by means of the spring bar 107-3 connected so that the first intersection section 107-6 the second crossing section 107-7 does not cross. Thus, the two spring sections 107-1 and 107-2 arranged in mirror image next to each other. In addition, the first spring section 107-1 a first pen 107-14 and has the second spring portion 107-2 a second pen 107-15 on. The first pen 107-14 forms with the first spring section 107-1 a right angle and points in the 3 displayed drawing level upwards. The second pen 107-15 forms with the second spring section 107-2 a right angle and points in the 3 displayed drawing level down.

In the manufacture of the connector 100 becomes the spring 107 from the outside in the laterally circumferentially open spring housing 115 pushed and between the first wall 115-1 and the second wall 115-2 in the spring housing 115 positioned. The spring housing 115 has a first recess 111-1 for receiving the first pen 107-14 and a second recess 111-2 for receiving the second pen 107-15 on to the two spring sections 107-1 and 107-2 on the spring housing 115 to position. This is the spring 107 through the laterally circumferential opening of the spring housing 115 in the spring housing 115 pushed, with the spring 107 then on the spring housing 115 by positioning the two pins 107-14 and 107-15 in the corresponding recesses 111-1 and 111-2 is fixed.

4 shows a cross-sectional view through the connector in the locked state according to the first embodiment. With regard to the designation of the elements of the spring 107 will be on the 2 directed. The spring housing 115 of the connector 100 has an opening 127 on, in which the connecting piece 103 is used to with the spigot 101 to be connected. After inserting the connecting piece 103 there is the groove 105 inside the spring housing 115 , The feather 107 is from the outside into the laterally circumferential opening of the spring housing 115 pushed. The two intervention sections 107-10 and 107-11 the spring sections 107-1 and 107-2 grab both sides in the groove 105 a, around the connecting piece 103 with the plug 101 to lock.

Inside the spring housing 115 are centering ribs 119 arranged, a plugging by self-centering of the connector 100 facilitate and reduce the radial play. The centering ribs 119 are even around the opening 127 arranged around and protrude from the edge of the opening 127 radially inward. In the area of spring sections 107-1 and 107-2 are the centering ribs 119 interrupted, so that the spring sections 107-1 and 107-2 can move laterally outward.

The spring sections 107-1 and 107-2 are crosswise by means of the spring bar 107-3 in particular the first intersection section 107-6 the second crossing section 107-7 crosses. Due to the crossed arrangement of the spring sections 107-1 and 107-2 is when pressing the spring bar 107-3 achieved a better leverage. This allows for easier assembly / disassembly of the connector 100 ,

On the spring housing 115 is also an unlocking device 117 for spreading the first and second spring section 107-1 and 107-2 arranged. The unlocking device 117 includes a stop 109 which has a first stop area 109-1 and a second stop area 109-2 has, wherein the first stop region 109-1 and the second stop area 109-2 connected to each other. The unlocking device 117 , in particular the stop 109 is in 4 shown only schematically. The first spring section 107-1 is located at the first stop area 109-1 on and the second spring section 107-2 is located at the second stop area 109-2 at. The first stop area 109-1 serves to spread the first spring section 107-1 , The second stop area 109-2 serves to spread the second spring section 107-2 , The two stop areas 109-1 and 109-2 are triangular in cross section, so that the movement of the spring sections 107-1 and 107-2 is not affected. The stop areas 109-1 and 109-2 are each integral with a centering rib 119 educated. This can be the stop 109 right on the edge of the opening 127 be arranged. Through the joint training of the attack 109 with the centering rib 119 increases both the strength of the centering rib 119 as well as the stop 109 ,

On the spring housing 115 is also a spacer 113 arranged. The spacer 113 is on the spring bar 107-3 opposite side of the connector 100 arranged. In the rest position are the two spring sections 107-1 and 107-2 on the spacer 113 at. As a result, in the rest position a predetermined position of the spring sections 107-1 and 107-2 be guaranteed. Indicates the connection piece 103 an inclined edge, the spring sections slide 107-1 and 107-2 , in particular the engaging sections 107-10 and 107-11 , when sliding the connector 100 automatically into the groove 105 ,

The spacer 113 is semicircular, so that the spring 107 when inserting into the connector 100 on the spacer 113 can slip past. At the same time, the two spring sections 107-1 and 107-2 at the respective end sections 107-12 and 107-13 angled. The angled ends of the two end sections 107-12 and 107-13 lie on the spring bar 107-3 opposite side of the spacer 113 on the spacer 113 at. This will be the spring 107 against pulling out of the connector 100 secured.

In 4 is the unlocked state of the connector 100 not shown in the first embodiment. The unlocking is created by manually pressing the spring bar 107-3 in the direction of the insertion tube 101 , wherein the spring bar 107-3 while in the direction of the Einsteckstutzens 101 is moved. Here are the two spring sections 107-1 and 107-2 , in particular the first engaging portion 107-10 and the second engaging portion 107-11 , through contact with the in 4 only schematically shown stop 109 pressed outward and move out of the groove 105 of the connecting piece 103 , The connector 100 is released and can from the spigot 103 be pulled down.

This allows easy disassembly and smooth unlocking of the connector 100 by simply pressing the spring 107 , After releasing the spring bar 107-3 the spring returns 107 independently back to their original position, in which the two spring sections 107-1 and 107-2 on the spacer 113 issue.

5 shows a cross-sectional view through the connector in the locked state according to the second embodiment. With regard to the designation of the elements of the spring 107 will be on the 3 directed. According to the in 4 shown first embodiment, the spring housing 115 of the connector 100 an opening 127 on, in which the connecting piece 103 is used to with the spigot 101 to be connected. After inserting the connecting piece 103 there is the groove 105 inside the spring housing 115 , The feather 107 is from the outside in the laterally open spring housing 115 pushed. The two spring sections 107-1 and 107-2 , in particular the first engaging portion 107-10 and the second engaging portion 107-11 , grab the groove on both sides 105 one. In addition, inside the spring housing 115 centering 119 arranged, a plugging by self-centering of the connector 100 facilitate and reduce the radial play.

In contrast to the first embodiment, according to the second embodiment 5 the spring sections 107-1 and 107-2 , in particular the first and second crossing section 107-6 and 107-7 , not crosswise by means of the spring bar 107-3 connected. In 5 are the first spring section 107-1 and the second spring section 107-2 mirror image arranged side by side and are resilient by means of the spring bar 107-3 connected. Due to the curved arrangement of the spring sections 107-1 and 107-2 is when pressing the spring bar 107-3 achieved an effective leverage. This allows for easier assembly / disassembly of the connector 100 ,

The first spring section 107-1 points to a spring bar 107-3 opposite end of a first pin 107-14 on. The second spring section 107-2 points to a spring bar 107-3 opposite end a second pin 107-15 on. The spring housing 115 has a first recess 111-1 for receiving the first pen 107-14 and a second recess 111-2 for receiving the second pen 107-15 on to the first and second spring section 107-1 and 107-2 on the spring housing 115 to position.

In the 5 not shown unlocking is created by manually pressing the spring bar 107-3 in the direction of the insertion tube 101 , The spring bar 107-3 is doing in the direction of the insertion 101 postponed.

The unlocking device 117 in the second embodiment according to 5 does not include a stop 109 but the first guide slope 129-1 and the second guide slope 129-2 , which on the spring housing 115 are arranged. The first guide slope 129-1 extends from the first recess 111-1 from the spring 107 path. The second guide slope 129-2 extends from the second recess 111-2 from the spring 107 path. The first pen 107-14 is at the first guide slope 129-1 and the second pen 107-15 is at the second guide slope 129-2 movably arranged. When pressing the spring 107 in the direction of the insertion tube 101 becomes the first pen 107-14 and the second pen 107-15 from the spigot 101 moved away. This will be the first pen 107-14 from the first recess 111-1 out along the first guide slope 129-1 moved and the second pin 107-15 is from the second recess 111-2 out along the second guide slope 129-2 postponed. By moving the first pen 107-14 along the first guide slope 129-1 and by moving the second pen 107-15 along the second guide slope 129-2 , becomes the first and second spring section 107-1 and 107-2 spread. Here are the two spring sections 107-1 and 107-2 , in particular the first engaging portion 107-10 and the second engaging portion 107-11 , pressed outward and move out of the groove 105 of the connecting piece 103 , The connector 100 is released and can from the spigot 103 be pulled down.

On the spring housing 115 is also a spacer 113 arranged. The spacer 113 is on one side of the connector 100 arranged the spring bar 107-3 opposite. In the rest position are the two spring sections 107-1 and 107-2 on the spacer 113 at.

The spring housing 115 also has another spacer 131 on, with the other spacer 131 and the spring bar 107-3 on the same side of the connector 100 are arranged. By manually pressing the spring bar 107-3 becomes the spring 107 in the direction of the insertion tube 101 postponed. For a complete insertion of the spring 107 in the connector 100 lies the spring bar 107-3 at the other spacer 131 and can not continue in the direction of the Einsteckstutzens 101 be moved. This will prevent the two pins 107-14 and 107-15 too far along the first guide slope 129-1 and the second guide slope 129-2 be moved and thereby the contact with the spring housing 115 to lose.

Thus, by the in 5 described second embodiment, a simple disassembly and smooth unlocking of the connector 100 by simply pressing the spring 107 allows. After releasing the spring bar 107-3 the spring returns 107 automatically return to the starting position, in which the two spring sections 107-1 and 107-2 on the spacer 113 issue.

6 shows a further perspective view of the connector with spring mounted according to the second embodiment, in contrast to 1 a rear view of the connector is shown. With regard to the designation of the elements of the spring 107 and the protective plate 125 will be on the 1 directed. The connector 100 includes a spigot 101 with a sealing ring 121 for insertion into a connecting piece 103 , with the connecting piece 103 in 6 not shown. A feather 107 with a spring bar 107-3 serves to lock the insertion tube 101 on the connecting piece 103 ,

The connector 100 includes a spring housing 115 with a first wall 115-1 and a second wall 115-2 , The spring housing 115 is laterally open all around. The feather 107 is in the spring housing 115 added.

The spring bar 107-3 the feather 107 is outside the spring housing 115 arranged so that the spring bar 107-3 on the connector 100 is arranged accessible, and a manual pressing of the spring bar 107-3 in the direction of the insertion tube 101 is possible.

In contrast to the first embodiment, according to the second embodiment 5 and 6 the spring sections 107-1 and 107-2 not crosswise by means of the spring bar 107-3 the feather 107 connected. The first spring section 107-1 and the second spring section 107-2 are mirror images arranged side by side and are resilient by means of the spring bar 107-3 connected. Due to the curved arrangement of the spring sections 107-1 and 107-2 is when pressing the spring bar 107-3 achieved an effective leverage. This allows for easier assembly / disassembly of the connector 100 ,

The first spring section 107-1 points to the spring bar 107-3 opposite end of a first pin 107-14 on. The second spring section 107-2 points to the spring bar 107-3 opposite end a second pin 107-15 on. The first pen 107-14 and the second pen 107-15 form each with the first and second spring section 107-1 and 107-2 a right angle and point in different directions, once up and once down. The first wall 115-1 of the spring housing 115 has a first recess 111-1 for receiving the first pen 107-14 on. The second wall 115-2 of the spring housing 115 has a second recess 111-2 for receiving the second pen 107-15 on. Thus, the first pen 107-14 on the first wall 115-1 and the second pen 107-15 on the second wall 115-2 of the spring housing 115 be positioned. Thus, the first pen 107-14 and the second pen 107-15 on different walls 115-1 and 115-2 of the spring housing 115 attached.

The unlocking device 117 in the second embodiment according to 6 does not include a stop 109 but a first guide slope 129-1 and a second guide slope 129-2 , The first guide slope 129-1 is at the first recess 111-1 arranged, and the second guide slope 129-2 is at the second recess 111-2 arranged. The first pen 107-14 is at the first guide slope 129-1 and the second pen 107-15 is at the second guide slope 129-2 movably arranged. When pressing the spring bar 107-3 in the direction of the insertion tube 101 becomes the first pen 107-14 and the second pen 107-15 from the spigot 101 moved away. This will be the first pen 107-14 from the first recess 111-1 out along the first guide slope 129-1 and the second pen 107-15 from the second recess 111-2 out along the second guide slope 129-2 postponed. By the movement of the first pen 107-14 along the first guide slope 129-1 and by the movement of the second pen 107-15 along the second guide slope 129-2 , becomes the first and second spring section 107-1 and 107-2 spread. Here are the two spring sections 107-1 and 107-2 pressed outward and move out of the groove 105 of the connecting piece 103 , The connector 100 will be released and can from the spigot 103 be pulled down.

All of the features explained and shown in connection with individual embodiments of the invention may be provided in different combinations in the article according to the invention in order to simultaneously realize their advantageous effects.

The scope of the present invention is given by the claims and is not limited by the features illustrated in the specification or shown in the figures.

LIST OF REFERENCE NUMBERS

100

 Connectors

101

 push-in

103

 spigot

104

 port opening

105

 groove

107

 feather

107-1

 First spring section

107-2

 Second spring section

107-3

 spring bar

107-4

 First spring deflection

107-5

 Second spring deflection

107-6

 First intersection section

107-7

 Second intersection section

107-8

 First spring projection

107-9

 Second spring projection

107-10

First intervention section

107-11

Second intervention section

107-12

 First end section

107-13

Second end section

107-14

First pen

107-15

Second pen

109

 attack

109-1

 First stop area

109-2

 Second stop area

111-1

 First recess

111-2

 Second recess

113

 spacer

115

 spring housing

115-1

 First wall

115-2

 Second wall

115-3

 web

115-4

 Arched indentation

117

 unlocking

119

 centering

121

 sealing ring

123-1

 First side neck

123-2

 Second side neck

123-3

 Stutz connection

123-4

 First nozzle opening

123-5

 Second port opening

123-6

 First Stutzenkopf

123-7

 Second nozzle

123-8

 First neck bead

123-9

 Second neck bead

123-10

First neck section

123-11

Second neck section

125

 protection plate

125-1

 First vertical support surface

125-2

 Second vertical support surface

125-3

 protective ribs

125-4

 Protective plate top

125-5

 protective edge

125-6

 First trapezoidal support surface

125-7

 Second trapezoidal support surface

127

 opening

129-1

 First guide slope

129-2

 Second guide slope

131

 Another spacer

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102012005929 A1 [0002]

Claims (15)

Connector ( 100 ) for establishing a fluid connection with a connecting piece ( 103 ), which has an outer circumferential groove ( 105 ), comprising: a spigot ( 101 ), which in the connecting piece ( 103 ) can be used; a spring ( 107 ) for fixing the Einsteckstutzens ( 101 ) on the connecting piece ( 103 ), the spring ( 107 ) a first spring section ( 107-1 ) for engaging in the groove ( 105 ) of the connecting piece ( 103 ), a second spring section ( 107-2 ) for engaging in the groove ( 105 ) of the connecting piece ( 103 ) and a spring bar ( 107-3 ) for pressing the spring ( 107 ) in the direction of the insertion ( 101 ); an unlocking device ( 117 ) for spreading the first and second spring sections ( 107-1 . 107-2 ) to the spring ( 107 ) from the groove ( 105 ) to solve; and a spring housing ( 115 ), wherein the spring housing ( 115 ) a first wall ( 115-1 ) and a second wall ( 115-2 ), which are arranged one above the other and by a web ( 115-3 ) are interconnected. Connector ( 100 ) according to claim 1, wherein the spring housing ( 115 ) is laterally circumferentially open to the spring side into the spring housing ( 115 ) introduce. Connector ( 100 ) according to claim 1 or 2, wherein the first spring section ( 107-1 ) and the second spring section ( 107-2 ) cross over spring or mirror image juxtaposed resiliently by means of a spring bar ( 107-3 ) are connected. Connector ( 100 ) according to one of the preceding claims, wherein the first spring section ( 107-1 ) a first pen ( 107-14 ) and the second spring section ( 107-2 ) a second pen ( 107-15 ), and wherein the spring housing ( 115 ) a first recess ( 111-1 ) for receiving the first pen ( 107-14 ) and a second recess ( 111-2 ) for receiving the second pen ( 107-15 ) to the first and second spring portion ( 107-1 . 107-2 ) on the spring housing ( 115 ). Connector ( 100 ) according to claim 4, wherein the unlocking device ( 117 ) on the spring housing ( 115 ) is arranged and a first guide slope ( 129-1 ) extending from the first recess ( 111-1 ) from the spring ( 107 ) extends away, and a second guide slope ( 129-2 ) extending from the second recess ( 111-2 ) from the spring ( 107 ), wherein the first pin ( 107-14 ) at the first guide slope ( 129-1 ) and the second pen ( 107-15 ) at the second guide slope ( 129-2 ) are movably arranged, and wherein the first pin ( 107-14 ) and the second pen ( 107-15 ) when pressing the spring ( 107 ) along the first guide slope ( 129-1 ) and the second guide slope ( 129-2 ) are displaceable to the first and second spring section ( 107-1 . 107-2 ) to spread. Connector ( 100 ) according to one of the preceding claims, wherein the unlocking device ( 117 ) a stop ( 109 ) for spreading the first and the second spring portion ( 107-1 . 107-2 ) when pressing the spring ( 107 ) and the stop ( 109 ) and the spring bar ( 107-3 ) the feather ( 107 ) on the same side of the connector ( 100 ) are arranged. Connector ( 100 ) according to claim 6, wherein the stop ( 109 ) a first stop area ( 109-1 ) for spreading the first spring section ( 107-1 ) and a second stop area ( 109-2 ) for spreading the second spring portion ( 107-2 ), wherein the first stop region ( 109-1 ) and the second stop area ( 109-2 ) are interconnected. Connector ( 100 ) according to one of the preceding claims, wherein the connector ( 100 ) a spacer ( 113 ) for mutual spacing of the first spring section ( 107-1 ) and the second spring section ( 107-2 ). Connector ( 100 ) according to claim 8, wherein the spacer ( 113 ) on one side of the connector ( 100 ) is arranged, which the spring bar ( 107-3 ) the feather ( 107 ) is opposite. Connector ( 100 ) according to claim 8 or 9, wherein the spacer ( 113 ) is semicircular, so that the spring ( 107 ) when inserted into the connector ( 100 ) on the spacer ( 113 ) can slip past. Connector ( 100 ) according to one of the preceding claims, wherein the connector ( 100 ) a further spacer ( 131 ), which is formed when pressing the spring ( 107 ) the movement of the spring ( 107 ) when the spring bar ( 107-3 ) with the further spacer ( 131 ), and wherein the further spacer ( 131 ) and the spring bar ( 107-3 ) on the same side of the connector ( 100 ) are arranged. Connector ( 100 ) according to one of the preceding claims, wherein the unlocking device ( 117 ) is arranged such that when pressing on the spring bar ( 107-3 ) the feather ( 107 ) a leverage on the first spring section ( 107-1 ) and the second spring section ( 107-2 ) is exercised. Connector ( 100 ) according to one of the preceding claims, wherein the connector ( 100 ) a centering rib ( 119 ) for supporting the connector ( 100 ) on the connecting piece ( 103 ). Connector ( 100 ) according to one of the preceding claims, wherein the connector ( 100 ) comprises a polyphthalamide polymer, polyphenylene sulfide polymer, polyamide polymer, glass fibers or mixtures thereof. Connector ( 100 ) according to one of the preceding claims, wherein the spring ( 107 ) is formed from bent round wire.

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