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A direct-current sprayer includes a shell with an outlet therein, a valve in the outlet, a pipe leading to the valve from a pump in the shell and a hose detachably connected to the valve so that water can flow from a pump in the shell into the hose through the valve. The valve automatically blocks t

A direct-current sprayer includes a shell with an outlet therein, a valve in the outlet, a pipe leading to the valve from a pump in the shell and a hose detachably connected to the valve so that water can flow from a pump in the shell into the hose through the valve. The valve automatically blocks the flow of the water after the hose is detached from the valve.

대표청구항 ▼

What is claimed is: 1. A direct-current sprayer for spraying water comprising: a shell comprising an outlet therein, a valve in the outlet and comprising a housing and a core movable in the housing, with the housing having on an internal side a rib for abutment with the core in order to block the f

What is claimed is: 1. A direct-current sprayer for spraying water comprising: a shell comprising an outlet therein, a valve in the outlet and comprising a housing and a core movable in the housing, with the housing having on an internal side a rib for abutment with the core in order to block the flow of the water, and with the core comprising a closed end, an open end, a passageway extending to the open end from the closed end and at least one slot in communication with the passageway; a pipe connecting the valve to a pump in the shell; and a hose detachably connected to the valve so that water can flow from a pump in the shell into the hose through the valve, wherein water can flow into the passageway through the slot when the core is pushed by an end of the hose, wherein the valve automatically blocks the flow of the water after the hose is detached from the valve. 2. The direct-current sprayer according to claim 1 wherein the shell comprises a pocket thereon for storing the hose. 3. The direct-current sprayer according to claim 1 comprising a joint for connecting the pipe to the valve. 4. The direct-current sprayer according to claim 3 wherein the joint comprises a first section for insertion in the pipe and a second section for receiving a portion of the valve. 5. The direct-current sprayer according to claim 4 wherein the joint comprises a thread on an internal side of the second section, wherein the joint comprises a thread for engagement with the thread of the joint. 6. The direct-current sprayer according to claim 4 comprising a strap for tightening the pipe around the first section of the joint. 7. The direct-current sprayer according to claim 1 wherein the rib comprises an inclined side for contact with the core. 8. The direct-current sprayer according to claim 1 comprising a seal for sealing contact with the rib. 9. The direct-current sprayer according to claim 1 comprising a joint comprising a first section for insertion in the hose, a second section for abutment with the vale and a third section for easy connection to the valve. 10. The direct-current sprayer according to claim 9 comprising a ferrule for tightening the hose around the first section of the joint and a seal around the third section of the joint for sealing contact with an internal side of the valve, wherein the joint comprises, around the third section, a groove for receiving the seal, wherein the second section of the joint is a flange. 11. The direct-current sprayer according to claim 9 comprising a shackle movable on the valve between a locking position for locking the third section of the joint and a releasing position for releasing the third section of the joint. 12. A direct-current sprayer for spraying water comprising: a shell comprising an outlet therein; a valve in the outlet; a pipe connecting the valve to a pump in the shell; a hose detachably connected to the valve so that water can flow from a pump in the shell into the hose through the valve, wherein the valve automatically blocks the flow of the water after the hose is detached from the valve; a joint comprising a first section for insertion in the hose, a second section for abutment with the vale and a third section for easy connection to the valve; a ferrule for tightening the hose around the first section of the joint and a seal around the third section of the joint for sealing contact with an internal side of the valve, wherein the joint comprises, around the third section, a groove for receiving the seal, wherein the second section of the joint is a flange; and a shackle movable on the valve between a locking position for locking the third section of the joint and a releasing position for releasing the third section of the joint; wherein the shackle defines an opening through which the third section of the joint can be inserted into the valve, wherein the joint comprises, on the third section, a neck that can be locked by the shackle. 13. The direct-current sprayer according to claim 12 wherein the valve comprises a housing and a core movable in the housing. 14. The direct-current sprayer according to claim 13 wherein the housing comprises, on an internal side, a rib for abutment with the core in order to block the flow of the water. 15. The direct-current sprayer according to claim 14 wherein the core comprising a closed end, an open end, a passageway extending to the open end from the closed end, at least one slot in communication with the passageway so that the water can flow into the passageway through the slot when the core is pushed by an end of the hose. 16. A direct-current sprayer for spraying water comprising: a shell comprising an outlet therein; a valve in the outlet; a pipe connecting the valve to a pump in the shell; a hose detachably connected to the valve so that water can flow from a pump in the shell into the hose through the valve, wherein the valve automatically blocks the flow of the water after the hose is detached from the valve; a joint comprising a first section for insertion in the hose, a second section for abutment with the vale and a third section for easy connection to the valve; a ferrule for tightening the hose around the first section of the joint and a seal around the third section of the joint for sealing contact with an internal side of the valve, wherein the joint comprises, around the third section, a groove for receiving the seal, wherein the second section of the joint is a flange; a shackle movable on the valve between a locking position for locking the third section of the joint and a releasing position for releasing the third section of the joint; and a latch with a neck, wherein the shackle defines a slit for receiving the neck of the latch, thus avoiding detachment of the shackle from the valve. 17. A direct-current sprayer for spraying water comprising: a hose; a valve connected to the hose and comprising a housing and a core movable in the housing, with the housing having on an internal side a rib for abutment with the core in order to block the flow of the water, and with the core comprising a closed end, an open end, a passageway extending to the open end from the closed end, and at least one slot in communication with the passageway; a shell comprising an outlet therein; and a pipe leading to the outlet from a pump in the shell, wherein the valve is detachably connected to the pipe so that water can flow from a pump in the shell into the hose through the valve, wherein water can flow into the passageway through the slot when the core is pushed by an end of the hose, wherein the valve automatically blocks the flow of the water from the hose after the valve is detached from the pipe. 18. The direct-current sprayer according to claim 17 wherein the shell comprises a pocket thereon for storing the hose. 19. The direct-current sprayer according to claim 17 comprising a joint for connecting the hose to the valve. 20. The direct-current sprayer according to claim 19 wherein the joint comprises a first section for insertion in the hose and a second section for receiving a portion of the valve. 21. The direct-current sprayer according to claim 20 wherein the joint comprises a thread on an internal side of the second section, wherein the joint comprises a thread for engagement with the thread of the joint. 22. The direct-current sprayer according to claim 21 comprising a strap for tightening the hose around the first section of the joint. 23. The direct-current sprayer according to claim 17 comprising a joint for easy connection of the pipe to the valve, with the joint comprising a first section for insertion in the pipe, a second section for abutment with the valve and a third section for easy connection to the valve. 24. The direct-current sprayer according to claim 23 comprising a ferrule for tightening the hose around the first section of the joint and a seal around the third section of the joint for sealing contact with an internal side of the valve, wherein the joint comprises, around the third section, a groove for receiving the seal, wherein the second section of the joint is a flange. 25. The direct-current sprayer according to claim 23 comprising a shackle movable on the valve between a locking position for locking the third section of the joint and a releasing position for releasing the third section of the joint. 26. A direct-current sprayer for spraying water comprising: a hose; a valve connected to the hose; a shell comprising an outlet therein; a pipe leading to the outlet from a pump in the shell, wherein the valve is detachably connected to the pipe so that water can flow from a pump in the shell into the hose through the valve, wherein the valve automatically blocks the flow of the water from the hose after the valve is detached from the pipe; a joint for easy connection of the pipe to the valve, with the joint comprising a first section for insertion in the pipe, a second section for abutment with the valve and a third section for easy connection to the valve; a ferrule for tightening the hose around the first section of the joint and a seal around the third section of the joint for sealing contact with an internal side of the valve, wherein the joint comprises, around the third section, a groove for receiving the seal, wherein the second section of the joint is a flange; and a shackle movable on the valve between a locking position for locking the third section of the joint and a releasing position for releasing the third section of the joint; wherein the shackle defines an opening through which the third section of the joint can be inserted into the valve wherein the joint comprises, on the third section, a neck that can be locked by means of the shackle. 27. The direct-current sprayer according to claim 26 wherein the valve comprises a housing and a core movable in the housing. 28. The direct-current sprayer according to claim 27 wherein the housing comprises, on an internal side, a rib for abutment with the core in order to block the flow of the water. 29. The direct-current sprayer according to claim 17 wherein the rib comprises an inclined side for contact with the core. 30. The direct-current. sprayer according to claim 17 comprising a seal for sealing contact with the rib. 31. The direct-current sprayer according to claim 28 wherein the core comprises a close end, an open end, a passageway extending to the open end from the closed end, at least one slot in communication with the passageway so that the water can flow into the passageway through the slot when the core is pushed by an end of the hose. 32. A direct-current sprayer for spraying water comprising; a hose; a valve connected to the hose; a shell comprising an outlet therein; a pipe leading to the outlet from a pump in the shell, wherein the valve is detachably connected to the pipe so that water can flow from a pump in the shell into the hose through the valve, wherein the valve automatically blocks the flow of the water from the hose after the valve is detached from the pipe; a joint for easy connection of the pipe to the valve, with the joint comprising a first section for insertion in the pipe, a second section for abutment with the valve and a third section for easy connection to the valve; a ferrule for tightening the hose around the first section of the joint and a seal around the third section of the joint for sealing contact with an internal side of the valve, wherein the joint comprises, around the third section, a groove for receiving the seal, wherein the second section of the joint is a flange; a shackle movable on the valve between a locking position for locking the third section of the joint and a releasing position for releasing the third section of the joint; and a latch with a neck, wherein the shackle defines a slit for receiving the neck of the latch, thus avoiding detachment of the shackle from the valve.