Dual-mode fluid connector supporting different operating modes

1. A dual-mode fluid connector ( 150 ), comprising:

a hollow connecting element ( 310 ), comprising a chamber ( 411 ) inside the hollow connecting element ( 310 ), wherein a protuberant block element ( 415 ) is arranged on an inner surface of the chamber ( 411 ), and the block element ( 415 ) divides an interior space of the chamber ( 411 ) into a first space ( 412 ) and a second space ( 413 );

a material tube ( 322 ), positioned on the hollow connecting element ( 310 ) and connected through the chamber ( 411 );

a cleaning tube ( 324 ), positioned on the hollow connecting element ( 310 ) and connected through the chamber ( 411 );

a head portion ( 330 ), positioned on one terminal of the hollow connecting element ( 310 ) and comprising a connecting opening ( 431 ), wherein the connecting opening ( 431 ) is connected through the chamber ( 411 ) and capable of being detachably connected to an outlet check valve ( 140 ) on a material container ( 130 );

a rear portion ( 340 ), positioned on another terminal of the hollow connecting element ( 310 ) and comprising a through hole ( 441 ); and

a rod ( 360 ), inserted into the chamber ( 411 ) via the through hole ( 441 ) and comprising a rod head ( 461 ) and a sealing portion ( 463 );

wherein when the connecting opening ( 431 ) is detachably connected to the outlet check valve ( 140 ) to cause the sealing portion ( 463 ) to abut the block element ( 415 ), the rod head ( 461 ) pushes a stopper ( 242 ) on the outlet check valve ( 140 ) inward to render an output terminal of the outlet check valve ( 140 ) to become an open status.

2. The dual-mode fluid connector ( 150 ) of claim 1 , further comprising:

a rotatable element ( 380 ), covered on the rear portion ( 340 ) and engaged with the rod ( 360 ), and arranged to operably drive the rod ( 360 ) to move forward or backward.

3. The dual-mode fluid connector ( 150 ) of claim 2 , wherein a track ( 443 ) is arranged on an outer surface of the rear portion ( 340 ), the rod ( 360 ) comprises an outer flange ( 467 ), the rotatable element ( 380 ) comprises a guiding element ( 487 ) and a block portion ( 489 ), the guiding element ( 487 ) is positioned in an interior of the rotatable element ( 380 ) and arranged to operably engage with the track ( 443 ), and the block portion ( 489 ) is positioned in the interior of the rotatable element ( 380 ) and arranged to operably engage with the outer flange ( 467 );

wherein the guiding element ( 487 ) is arranged to operably move along the track ( 443 ).

4. The dual-mode fluid connector ( 150 ) of claim 3 , wherein when the rotatable element ( 380 ) is rotated toward a first predetermined direction, the rotatable element ( 380 ) moves forward while rotating and drives the rod ( 360 ) to move forward until the sealing portion ( 463 ) abuts the block element ( 415 ).

5. The dual-mode fluid connector ( 150 ) of claim 4 , wherein after the sealing portion ( 463 ) abuts the block element ( 415 ), if the rotatable element ( 380 ) is rotated toward a second predetermined direction, then the rotatable element ( 380 ) moves backward while rotating and drives the rod ( 360 ) to move backward together, so that the sealing portion ( 463 ) detaches from the block element ( 415 );

wherein after the sealing portion ( 463 ) detaches from the block element ( 415 ) for a predetermined distance, the first space ( 412 ) and the cleaning tube ( 324 ) are enabled to communicate with each other, and the rod head ( 461 ) detaches from the stopper ( 242 ) to render the output terminal of the outlet check valve ( 140 ) to become a close status.

6. The dual-mode fluid connector ( 150 ) of claim 5 , wherein an outer surface of the rotatable element ( 380 ) comprises a first area ( 581 ) and a second area ( 582 ), the dual-mode fluid connector ( 150 ) operates in a serve mode when the rotatable element ( 380 ) is rotated to a status where the first area ( 581 ) faces upward, and the dual-mode fluid connector ( 150 ) operates in a clean mode when the rotatable element ( 380 ) is rotated to a status where the second area ( 582 ) faces upward.

7. The dual-mode fluid connector ( 150 ) of claim 5 , further comprising:

a bended plate ( 370 ), positioned between the rotatable element ( 380 ) and the rear portion ( 340 ), and an outer surface of the bended plate ( 370 ) comprises a first marked region ( 471 ) and a second marked region ( 473 );

wherein the rotatable element ( 380 ) further comprises a first window ( 781 ) and a second window ( 782 ), and when the rotatable element ( 380 ) is rotated to a status where the first window ( 781 ) faces upward, the first marked region ( 471 ) is exposed from the first window ( 781 ) and the dual-mode fluid connector ( 150 ) operates in a serve mode; and

when the rotatable element ( 380 ) is rotated to a status where the second window ( 782 ) faces upward, the second marked region ( 473 ) is exposed from the second window ( 782 ) and the dual-mode fluid connector ( 150 ) operates in a clean mode.

8. The dual-mode fluid connector ( 150 ) of claim 4 , wherein the rear portion ( 340 ) further comprises a block wall portion ( 447 ) positioned on one side of an end section of the track ( 443 ), and when the rotatable element ( 380 ) drives the rod ( 360 ) to move forward so that the sealing portion ( 463 ) abuts the block element ( 415 ), the guiding element ( 487 ) enters the end section of the track ( 443 ) so that the block wall portion ( 447 ) supports the guiding element ( 487 ).

9. The dual-mode fluid connector ( 150 ) of claim 8 , further comprising:

a spring ( 350 ), positioned between the rear portion ( 340 ) and the rotatable element ( 380 ) or between the rear portion ( 340 ) and the outer flange ( 467 ), and when the rotatable element ( 380 ) drives the rod ( 360 ) to move forward, the block portion ( 489 ) or the outer flange ( 467 ) compresses the spring ( 350 );

wherein when the guiding element ( 487 ) disengages with the block wall portion ( 447 ), the spring ( 350 ) applies an elastic restoring force on the block portion ( 489 ) or the outer flange ( 467 ) to push the rotatable element ( 380 ) or the rod ( 360 ) backward.

10. The dual-mode fluid connector ( 150 ) of claim 3 , further comprising:

a spring ( 350 ), positioned between the rear portion ( 340 ) and the rotatable element ( 380 ) or between the rear portion ( 340 ) and the outer flange ( 467 ), and when the rotatable element ( 380 ) drives the rod ( 360 ) to move forward, the block portion ( 489 ) or the outer flange ( 467 ) compresses the spring ( 350 );

wherein the rear portion ( 340 ) further comprises a block wall portion ( 447 ) positioned on one side of an end section of the track ( 443 ), and when the guiding element ( 487 ) disengages with the block wall portion ( 447 ), the spring ( 350 ) applies an elastic restoring force on the block portion ( 489 ) or the outer flange ( 467 ) to push the rotatable element ( 380 ) or the rod ( 360 ) backward.

11. The dual-mode fluid connector ( 150 ) of claim 10 , wherein the hollow connecting element ( 310 ) further comprises a second restriction element ( 417 ) extended outward from an outer surface of the hollow connecting element ( 310 ), and the rotatable element ( 380 ) further comprises a second elongated portion ( 484 ) extended from an edge of a front opening ( 481 ) of the rotatable element ( 380 ) toward the head portion ( 330 );

wherein when the rotatable element ( 380 ) is rotated toward a second predetermined direction to a certain extent, the second elongated portion ( 484 ) engages with the second restriction element ( 417 ) to prevent the rotatable element ( 380 ) from continuing to rotate toward the second predetermined direction.

12. The dual-mode fluid connector ( 150 ) of claim 3 , wherein the hollow connecting element ( 310 ) further comprises a first restriction element ( 416 ) extended outward from an outer surface of the hollow connecting element ( 310 ), and the rotatable element ( 380 ) further comprises a first elongated portion ( 483 ) extended from an edge of a front opening ( 481 ) of the rotatable element ( 380 ) toward the head portion ( 330 );

wherein when the rotatable element ( 380 ) is rotated toward a first predetermined direction to a certain extent, the first elongated portion ( 483 ) engages with the first restriction element ( 416 ) to prevent the rotatable element ( 380 ) from continuing to rotate toward the first predetermined direction.

13. The dual-mode fluid connector ( 150 ) of claim 12 , wherein the hollow connecting element ( 310 ) further comprises a second restriction element ( 417 ) extended outward from the outer surface of the hollow connecting element ( 310 ), and the rotatable element ( 380 ) further comprises a second elongated portion ( 484 ) extended from the edge of the front opening ( 481 ) of the rotatable element ( 380 ) toward the head portion ( 330 );

wherein when the rotatable element ( 380 ) is rotated toward a second predetermined direction to a certain extent, the second elongated portion ( 484 ) engages with the second restriction element ( 417 ) to prevent the rotatable element ( 380 ) from continuing to rotate toward the second predetermined direction.

14. The dual-mode fluid connector ( 150 ) of claim 3 , wherein the hollow connecting element ( 310 ) further comprises a second restriction element ( 417 ) extended outward from an outer surface of the hollow connecting element ( 310 ), and the rotatable element ( 380 ) further comprises a second elongated portion ( 484 ) extended from an edge of a front opening ( 481 ) of the rotatable element ( 380 ) toward the head portion ( 330 );

wherein when the rotatable element ( 380 ) is rotated toward a second predetermined direction to a certain extent, the second elongated portion ( 484 ) engages with the second restriction element ( 417 ) to prevent the rotatable element ( 380 ) from continuing to rotate toward the second predetermined direction.

15. The dual-mode fluid connector ( 150 ) of claim 3 , further comprising:

one or more clamp elements ( 433 , 435 ), positioned on sides of the head portion ( 330 ), and when the connecting opening ( 431 ) is connected to the outlet check valve ( 140 ), the one or more clamp elements ( 433 , 435 ) engage with a protruding portion ( 244 ) of the outlet check valve ( 140 ).

16. The dual-mode fluid connector ( 150 ) of claim 2 , wherein the rotatable element ( 380 ) further comprises:

one or more fins ( 485 , 486 ), positioned on an outer surface of the rotatable element ( 380 ), and arranged to operably facilitate a user to rotate the rotatable element ( 380 ).

17. The dual-mode fluid connector ( 150 ) of claim 2 , wherein when the rotatable element ( 380 ) is rotated toward a first predetermined direction, the rotatable element ( 380 ) moves forward while rotating and drives the rod ( 360 ) to move forward until the sealing portion ( 463 ) abuts the block element ( 415 ), and when the sealing portion ( 463 ) abuts the block element ( 415 ), the first space ( 412 ) and the second space ( 413 ) are separated by the sealing portion ( 463 ) and the block element ( 415 ) so that the first space ( 412 ) and the second space ( 413 ) are isolated with each other.

18. The dual-mode fluid connector ( 150 ) of claim 2 , wherein when the rotatable element ( 380 ) moves toward the head portion ( 330 ), the rotatable element ( 380 ) drives the rod ( 360 ) to move forward until the sealing portion ( 463 ) abuts the block element ( 415 ), and when the sealing portion ( 463 ) abuts the block element ( 415 ), the first space ( 412 ) and the second space ( 413 ) are separated by the sealing portion ( 463 ) and the block element ( 415 ) so that the first space ( 412 ) and the second space ( 413 ) are isolated with each other.