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A quick change, self-contained vacuum system includes a debris container with an input opening and a pressure head that is configured to receive a fluid under a high pressure and which includes a low pressure inlet and an exhaust port. A guide pin may be provided along with a body that is selectivel

A quick change, self-contained vacuum system includes a debris container with an input opening and a pressure head that is configured to receive a fluid under a high pressure and which includes a low pressure inlet and an exhaust port. A guide pin may be provided along with a body that is selectively engageable with the pressure head and the guide pin. The body includes a bore having a first port communicating with the exhaust port of the pressure head and a second port communicating with the input opening of the debris container. The vacuum system further includes a shutoff valve that is operable in response to movement of the guide pin. In operation, movement of the guide pin relative to the body in one direction establishes locking engagement of the pressure head and the body along with a response by the shutoff valve to establish fluid communication between the exhaust port of the pressure head and the input opening of the debris container. Movement of the guide pin relative to the body in another direction provides for separation of the pressure head and the body and response by the shutoff valve to prevent fluid communication between the first port of the bore and the input opening of the debris container.

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1. A quick change, self-contained vacuum system having a debris container with an input opening, comprising:a pressure head configured to receive a fluid under a high pressure and comprising a low pressure inlet and an exhaust port;a guide;a debris container comprising an input opening;a body being

1. A quick change, self-contained vacuum system having a debris container with an input opening, comprising:a pressure head configured to receive a fluid under a high pressure and comprising a low pressure inlet and an exhaust port;a guide;a debris container comprising an input opening;a body being selectively engageable with the pressure head and the guide and comprising a bore having a first port communicating with the exhaust port of the pressure head and a second port communicating with the input opening of the debris container; anda shutoff valve being operable in response to movement of the guide relative to the body;wherein movement of the guide relative to the body in one direction establishes locking engagement of the pressure head and the body along with response by the shutoff valve to establish fluid communication between the exhaust port of the pressure head and the input opening of the debris container and movement of the guide relative to the body in another direction provides for separation of the pressure head and the body and response by the shutoff valve to prevent fluid communication between the first port of the body and the input opening of the debris container. 2. The quick change, self-contained vacuum system of claim 1 wherein the guide comprises a guide pin that is affixed to the pressure head. 3. The quick change, self-contained vacuum system of claim 2 wherein the body comprises an inner member having a first opening in fluid communication with the exhaust port of the pressure head and a second opening in fluid communication with the first opening and an outer member configured for relative movement therewith. 4. The quick change, self-contained vacuum system of claim 3 wherein:the inner member comprises a mounting portion including radially spaced slots and an outer surface of increasing diameter; andthe outer member comprises a helical slot and an inner tapered surface disposed at an angle with respect to a central axis of the outer member which corresponds to that of the outer surface of the inner member. 5. The quick change, self-contained vacuum system of claim 4 wherein the guide pin is received within one of the radially spaced slots of the inner member and the guide pin is also received within the helical slot of the outer member such that the inner member, the outer member and the pressure head are locked together. 6. The quick change, self-contained vacuum system of claim 3, wherein the inner and outer members are sleeves. 7. The quick change, self-contained vacuum system of claim 6 wherein the debris container comprises a bag. 8. The quick change, self-contained vacuum system of claim 3, wherein the shutoff valve comprises an aperture disposed on the outer member and wherein movement of the guide pin in one direction causes movement of the outer member such that the aperture is aligned with the second opening of the inner member and movement of the guide pin in another direction causes movement of the outer member such that the second opening and the aperture are not aligned. 9. The quick change, self-contained vacuum system of claim 3, wherein the shutoff valve comprises:a flapper valve mounted to the outer member and being biased closed and the flapper valve being openable by sliding movement of the inner member. 10. The quick change, self-contained vacuum system of claim 3, wherein the shutoff valve comprises:a pair of doors mounted to the outer member and both being biased closed and the pair of doors being openable by sliding movement of the inner member. 11. The quick change, self-contained vacuum system of claim 3, wherein the shutoff valve comprises:a diaphragm valve mounted within the inner member and being operable by an outer-positioned ring whereby the diaphragm valve is closable to prevent passage of fluid from the pressure head through the second port of the body. 12. The quick change, self-contained vacuum system of claim 1, wherein the shutoff valve comprises:a heart valv e mounted to the body and being biased to close the second port of the body, the heart valve being openable by a predetermined pressure of fluid in the pressure head. 13. The quick change, self-contained vacuum system of claim 1, wherein the shutoff valve comprises:a throttle valve mounted within the bore of the body and being biased to prevent passage of fluid from the pressure head through the second port of the body, the throttle valve being openable by a predetermined pressure of fluid in the pressure head. 14. The quick change, self-contained vacuum system of claim 1 wherein the pressure head comprises a valve for adjusting a fluid pressure level of the low pressure inlet. 15. A quick change, self-contained vacuum system, comprising:a movable pressure head configured to receive a fluid under a high pressure and comprising a low pressure inlet, an exhaust port and a guide pin extending away from the pressure head;an inner member comprising a bore having a first opening that is in fluid communication with the exhaust port of the pressure head and a second opening that is in fluid communication with the first opening, the inner member being operatively engageable with the guide pin of the pressure head;an outer member in slidable relationship with the inner member and the pressure head, the outer member comprising a helical slot dimensioned and configured to receive the guide pin of the pressure head whereby the guide pin may move therewithin and the outer member further comprising an aperture; anda shutoff valve being operable in response to movement of the guide pin;wherein selective movement of the guide pin relative to the outer member in one direction causes movement of the shutoff valve for establishing fluid communication from the exhaust port of the pressure head, through the first and second openings of the inner member and to the aperture of the outer member and movement of the guide pin relative to the outer member in another direction causes movement of the shutoff valve for preventing fluid communication from the exhaust port, through the first and second openings of the inner member and to the aperture. 16. The quick change, self-contained vacuum system of claim 15 wherein the inner member and the outer member each comprise a sleeve. 17. The quick change, self-contained vacuum system of claim 16 wherein the inner member and the outer member are concentrically disposed. 18. The quick change, self-contained vacuum system of claim 17, wherein the shutoff valve is opened by movement of the guide pin in one direction such that the second opening of the inner member is aligned with the aperture of the outer member and wherein the shutoff valve is closed by movement of the guide pin in another direction such that the aperture and the second opening are not aligned. 19. The quick change, self-contained vacuum system of claim 17, wherein the shutoff valve comprises:a flapper valve mounted to the outer member and being biased to close the aperture of the outer member and the flapper valve being openable by sliding movement of the inner member. 20. The quick change, self-contained vacuum system of claim 17, wherein the shutoff valve comprises:a pair of doors mounted to the outer member and both being biased to close a port of the outer member and the pair of doors being openable by sliding movement of the inner member. 21. The quick change, self-contained vacuum system of claim 16 wherein the guide pin is received within one of the slots of the inner member and the guide pin is also received within the helical slot of the outer member such that the inner member, the outer member and the pressure head are locked together. 22. The quick change, self-contained vacuum system of claim 15 wherein:the inner member comprises a mounting portion including radially spaced slots and an outer surface of increasing diameter; andthe outer member comprises an inner tapered surface disposed at an angle with respect to a central axis of th e outer member which corresponds to that of the outer surface of the inner member. 23. The quick change, self-contained vacuum system of claim 15, further comprising a debris container with an input opening and wherein an end of the outer member is disposed within the input opening of the debris container. 24. The quick change, self-contained vacuum system of claim 23 wherein the debris container comprises a bag. 25. The quick change, self-contained vacuum system of claim 15 wherein the pressure head comprises a valve for adjusting a fluid pressure level of the low pressure inlet. 26. A quick change, self-contained vacuum system having a debris bag, comprising:a movable pressure head configured to receive a fluid under a high pressure and comprising a low pressure inlet, an exhaust port and a guide pin extending away from the pressure head, the pressure head comprises a valve for adjusting a fluid pressure level of the low pressure inlet;an inner member comprising a sleeve having a bore including a first opening that is in fluid communication with the exhaust port of the pressure head and a second opening that is in fluid communication with the first opening, the inner member being operatively engageable with the guide pin of the pressure head, the inner member also comprising a mounting portion including radially spaced slots and an outer surface of increasing diameter;a debris bag comprising an input opening;an outer member comprising a sleeve disposed in concentric relationship with the inner member, the outer member comprising a helical slot dimensioned and configured to receive the guide pin of the pressure head whereby the guide pin may move therewithin and the outer member further comprising an aperture and an end disposed within the input opening of the debris bag, the outer member further comprising an inner tapered surface disposed at an angle with respect to a central axis of the outer member, said angle equal to a taper angle of the outer surface of the inner member; anda shutoff valve being operable in response to movement of the guide pin;wherein selective movement of the guide pin relative to the outer member in one direction causes movement of the shutoff valve for establishing fluid communication from the exhaust port of the pressure head, through the first and second openings of the inner member and to the aperture of the outer member and movement of the guide pin relative to the outer member in another direction causes movement of the shutoff valve for preventing fluid communication from the exhaust port, through the first and second openings of the inner member and to the aperture of the outer member.