Head piece for refueling systems
View Patent ↗The invention pertains to a head piece ( 01 ) with a refueling coupler ( 02 ) for being connected to a tank, wherein several rigid pipe sections ( 03, 04, 05, 06, 07, 08 ) are provided for conveying the fuel, wherein the pipe sections ( 03, 04, 05, 06, 07, 08 ) are connected by means of several swivel joints ( 09, 10, 11, 12, 13, 14 ) in order to realize an adjustable spatial arrangement of the refueling coupler ( 02 ), and wherein at least a first swivel joint ( 09 ) and a second swivel joint ( 10 ) can be respectively swiveled about a horizontal swiveling axis ( 25, 26 ) in order to adjust the height of the refueling coupler ( 02 ). A parallel lever drive ( 15 ) is provided on the head piece ( 01 ) in order to hold a first pipe section ( 03 ) in a certain angular position during the height adjustment of the refueling coupler ( 02 ).
1. A head piece ( 01 ) with a refueling coupler ( 02 ) for being connected to a tank, wherein several rigid pipe sections ( 03 , 04 , 05 , 06 , 07 , 08 ) are provided for conveying the fuel, wherein the pipe sections ( 03 , 04 , 05 , 06 , 07 , 08 ) are connected by means of several swivel joints ( 09 , 10 , 11 , 12 , 13 , 14 ) in order to realize an adjustable spatial arrangement of the refueling coupler ( 02 ), and wherein at least a first swivel joint ( 09 ) and a second swivel joint ( 10 ) can be respectively swiveled about a horizontal swiveling axis ( 25 , 26 ) in order to adjust the height of the refueling coupler ( 02 ),
characterized in
that a parallel lever drive ( 15 ) is provided on the head piece ( 01 ) in order to hold a first pipe section ( 03 ) in a certain angular position during the height adjustment of the refueling coupler ( 02 ).
2. The head piece according to claim 1 ,
characterized in
that the first pipe section ( 03 ) is held in an approximately vertical position.
3. The head piece according to claim 1 ,
characterized in
that the parallel lever drive ( 15 ) is provided with an adjusting device for adjusting the angular position of the first pipe section ( 03 ).
4. The head piece according to claim 3 ,
characterized in
that the adjusting device is formed by two opposite threads ( 16 , 17 ) that make it possible to vary the length of one lever ( 21 ) of the parallel lever drive ( 15 ).
5. The head piece according to claim 1 ,
characterized in
that the second swivel joint ( 10 ) is arranged downstream of the first swivel joint ( 09 ) referred to the refueling direction of the fuel.
6. The head piece according to claim 1 ,
characterized in
that the first swivel joint ( 09 ) and the second swivel joint ( 10 ) are directly connected to one another by means of a second rigid pipe section ( 04 ).
7. The head piece according to claim 1 ,
characterized in
that the horizontal swiveling axes ( 25 , 26 ) of the first ( 09 ) and the second swivel joint ( 10 ) extend parallel to one another.
8. The head piece according to claim 1 ,
characterized in
that the first swivel joint ( 09 ) is connected to a directly adjacent third swivel joint ( 11 ) by means of a third rigid pipe section ( 05 ), wherein the third swivel joint ( 11 ) can be swiveled about a vertical swiveling axis ( 27 ).
9. The head piece according to claim 8 ,
characterized in
that the third swivel joint ( 11 ) is arranged upstream of the first swivel joint ( 09 ) referred to the refueling direction of the fuel.
10. The head piece according to claim 8 ,
characterized in
that the second swivel joint ( 10 ) is connected to a directly adjacent fourth swivel joint ( 12 ) by means of the first pipe section ( 03 ), wherein the fourth swivel joint ( 12 ) can be swiveled about the center axis of the first pipe section ( 03 ) that is held in a certain angular position by the parallel lever drive ( 15 ), particularly about a vertical swiveling axis ( 24 ).
11. The head piece according to claim 10 ,
characterized in
that the fourth swivel joint ( 12 ) is arranged downstream of the second swivel joint ( 10 ) referred to the refueling direction of the fuel.
12. The head piece according to claim 10 ,
characterized in
that the vertical swiveling axis ( 27 ) of the third swivel joint ( 11 ) extends parallel to the vertical swiveling axis ( 24 ) of the fourth swivel joint ( 12 ).
13. The head piece according to claim 10 ,
characterized in
that the fourth swivel joint ( 12 ) is connected to a directly adjacent fifth swivel joint ( 13 ) by means of a fourth rigid pipe section ( 06 ), wherein the fifth swivel joint ( 13 ) can be swiveled about a horizontal swiveling axis ( 28 ).
14. The head piece according to claim 13 ,
characterized in
that the fifth swivel joint ( 13 ) is connected to the refueling coupler ( 02 ) by means of a fifth pipe section ( 07 ).
15. The head piece according to claim 14 ,
characterized in
that the fifth pipe section ( 07 ) consists of two parts, wherein the part ( 07 a ) of the fifth pipe section ( 07 ) that carries the refueling coupler ( 02 ) can be turned relative to the other part ( 07 b ) of the fifth pipe section ( 07 ) about the longitudinal axis ( 31 ) of the fifth pipe section ( 07 ).
16. The head piece according to claim 8 ,
characterized in
that the third swivel joint ( 11 ) is connected to a directly adjacent sixth swivel joint ( 14 ) by means of a sixth rigid pipe section ( 08 ).
17. The head piece according to claim 8 ,
characterized in
that the vertical swiveling axis ( 27 ) of the third swivel joint ( 11 ) extends parallel to the vertical swiveling axis ( 29 ) of the sixth swivel joint ( 14 ).
18. The head piece according to claim 8 ,
characterized in
that the head piece ( 01 ) is provided with a balancing device ( 18 ) for counter-balancing at least one pipe section ( 03 , 04 , 06 , 07 ) and/or at least one swivel joint ( 10 , 12 , 13 ) and/or the refueling coupler ( 02 ).
19. The head piece according to claim 18 ,
characterized in
that the balancing device ( 18 ) counterbalances the second rigid pipe section ( 04 ).
20. The head piece according to claim 18 ,
characterized in
that the balancing device ( 18 ) supports the second rigid pipe section ( 04 ) relative to the third rigid pipe section ( 05 ).
21. The head piece according to claim 18 ,
characterized in
that the balancing device ( 18 ) contains a prestressed spring assembly ( 19 ).
22. The head piece according to claim 21 ,
characterized in
that the prestress of the spring assembly ( 19 ) is adjustable.
23. The head piece according to claim 8 ,
characterized in
that the parallel lever drive ( 15 ) is formed by the first rigid pipe section ( 03 ), the second rigid pipe section ( 04 ) and three connecting levers ( 20 , 21 , 22 ), wherein the first connecting lever ( 20 ) is rigidly mounted on the third pipe section ( 05 ), particularly in a vertically aligned position, wherein the second connecting lever ( 21 ) is arranged parallel to the second rigid pipe section ( 04 ), wherein the third connecting lever ( 22 ) is rigidly mounted on the first pipe section ( 03 ), and wherein the second connecting lever ( 21 ) is connected in an articulated fashion to the first connecting lever ( 20 ) and the third connecting lever ( 22 ).
24. The head piece according to claim 16 ,
characterized in
that the fourth swivel joint ( 12 ) is arranged directly above the sixth swivel joint ( 14 ).
25. The head piece according to claim 24 ,
characterized in
that the vertical swiveling axis ( 24 ) of the fourth swivel joint ( 12 ) is aligned with the vertical swiveling axis ( 29 ) of the sixth swivel joint ( 14 ) if the fourth swivel joint ( 12 ) is arranged above the sixth swivel joint ( 14 ).
26. The head piece according to claim 16 ,
characterized in
that the horizontal distance between the vertical swiveling axis ( 29 ) of the sixth swivel joint ( 14 ) and the vertical swiveling axis ( 27 ) of the third swivel joint ( 11 ) essentially corresponds to the horizontal distance between the vertical swiveling axis ( 24 ) of the fourth swivel joint ( 12 ) and the vertical swiveling axis ( 27 ) of the third swivel joint ( 11 ).