Patent Application
20090224073
1. Field of the Invention
The present invention relates to a multi-purpose sprayer gun, and more particularly to a multi-purpose sprayer gun including a simplified structure for reducing the manufacturing cost for the sprayer gun and for allowing the sprayer gun to be easily and quickly assembled.
2. Description of the Prior Art
Typical sprayer guns comprise a revolving ring rotatably attached to a main body, a water control rod slidably disposed in the main body and having a collar for engaging with the revolving ring and for controlling the outwardly water flowing pattern, and a press trigger handle pivotally attached to the main body and coupled to the water control rod to actuate the collar of the water control rod to engage with the revolving ring.
For example, U.S. Pat. No. 4,666,085 to Liaw discloses one of the typical multiple purpose water spray guns comprise a seal plate attached to a main body for covering the circular front of the main body, and two or more water seal rings engaged into a water supply pipe of the main body before a revolving ring is rotatably attached or coupled to the main body.
However, the seal plate and the water seal rings are required and should be attached or coupled to the main body such that the typical sprayer gun may not be easily and quickly assembled and such that the manufacturing cost for the typical sprayer gun may not be reduced.
U.S. Pat. No. 5,598,978 to Wang discloses another typical garden sprinkler head comprising a water distributor plate integrally secured to the inner side of a top discharge cover by such as ultrasonic welding processes before the top discharge cover is rotatably attached or coupled to the nozzle head of a lever controlled nozzle.
However, the water distributor plate is required and should be attached or coupled to the top discharge cover such that the typical sprayer gun may not be easily and quickly assembled and such that the manufacturing cost for the typical sprayer gun also may not be reduced.
U.S. Pat. No. 6,719,219 to Wang discloses a further typical sprayer nozzle having multiple spray pattern and comprising a front casing welded or secured to a front housing of the spray gun body, a rotor rotatably attached or coupled to the front housing with a pivotal stud and having a number of passages of different patterns formed in the rotor, and a control ferrule rotatably attached or coupled to the front housing and meshed or engaged with the rotor for rotating the rotor relative to the front housing and for controlling the outwardly water flowing patterns.
However, the rotor and the control ferrule may complicate the structure of the typical sprayer nozzle and should be attached or coupled to the front housing and the front casing such that the typical sprayer gun may not be easily and quickly assembled and such that the manufacturing cost for the typical sprayer gun also may not be reduced.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional multi-purpose sprayer guns.
The primary objective of the present invention is to provide a multi-purpose sprayer gun including a simplified structure for reducing the manufacturing cost for the sprayer gun and for allowing the sprayer gun to be easily and quickly assembled or manufactured.
In accordance with one aspect of the invention, there is provided a sprayer gun comprising a sprayer gun body including a handle for being grasped by a user, and including a passage formed in the handle, and including a housing provided on top of the handle and having a conduit formed in the housing and communicating with the passage of the handle for receiving the water from the passage of the handle, a revolving ring rotatably attached to a front portion of the housing and including a plurality of openings formed in the revolving ring for changeably aligning with the conduit of the housing by rotating the revolving ring relative to the housing, a sealing ring engaged in the conduit of the housing for engaging with the revolving ring and for making a water tight seal between the housing and the revolving ring, the sealing ring including a bore formed therein for selectively aligning with either of the openings of the revolving ring, an actuating rod slidably disposed in the conduit of the housing and including a sealing block disposed on the actuating rod and secured to the housing for making a water tight seal between the housing and the actuating rod and for guiding the water to flow from the passage of the handle to a front portion of the conduit of the housing, and a trigger pivotally attached to the housing with a pivot shaft and coupled to the actuating rod for moving the actuating rod relative to the conduit of the housing and for moving the actuating rod toward or away from the revolving ring, and the actuating rod includes a plug provided on a front portion of the actuating rod for selectively engaging into the bore of the sealing ring and for sealingly engaging with the sealing ring and for effectively controlling the water to flow out through the bore of the sealing ring and to flow out through either of the openings of the revolving ring, the sprayer gun includes a simplified structure for reducing the manufacturing cost and for allowing the sprayer gun to be easily and quickly assembled or manufactured.
The actuating rod includes a water guide head provided on the front portion of the actuating rod for engaging with the sealing ring, and the plug is extended outwardly and forwardly from the water guide head for selectively engaging into the bore of the sealing ring and for effectively controlling the water to flow out through the bore of the sealing ring.
The actuating rod includes an outer thread formed on a rear portion of the actuating rod for engaging with a lock nut which is engaged with the trigger for coupling the actuating rod to the trigger and for allowing the actuating rod to be actuated or moved by the trigger.
Further objectives and advantages of the present invention will become apparent from a careful reading of the detailed description provided hereinbelow, with appropriate reference to the accompanying drawings.
Referring to the drawings, and initially to
A revolving ring 20 is rotatably attached to the front portion of the housing 13 and includes a number of orifices or openings 21 of different patterns formed in the revolving ring 20 and arranged circularly or in a circle for selectively or changeably aligning with the conduit 14 of the housing 13 (
A control means or device 30 includes an actuating rod 31 slidably disposed in the conduit 14 of the housing 13, and includes a gasket or sealing block 32 disposed on the actuating rod 31 and engaged or secured in the rear portion 16 of the conduit 14 of the housing 13 for making a water tight seal between the housing 13 and the actuating rod 31 and for preventing the water to flow through the rear portion 16 of the conduit 14 of the housing 13 and for guiding the water to flow from the passage 12 of the handle 11 and to flow out through the front portion 15 of the conduit 14 of the housing 13, and includes an outer thread 33 formed or provided on the rear or one end portion of the actuating rod 31 for threading or engaging with a lock nut 34.
A hand grip or trigger 18 is rotatably or pivotally attached to the rear portion of the housing 13 with such as a pivot shaft 19, and the rear portion of the actuating rod 31 is engaged through the trigger 18 and engaged with or coupled to the trigger 18 with the lock nut 34 for allowing the actuating rod 31 to be actuated or moved along or relative to the conduit 14 of the housing 13 with the trigger 18 and for allowing the actuating rod 31 to be moved toward or away from the revolving ring 20 and/or the sealing ring 22. The above-described structure is typical and will not be described in further details.
The actuating rod 31 further includes a water guide head 35 formed or provided on the front or other end portion of the actuating rod 31 for selectively engaging with the revolving ring 20 and/or the sealing ring 22, and further includes a plug 36 extended outwardly therefrom, such as extended outwardly and forwardly from the water guide head 35 for selectively engaging into the bore 23 of the sealing ring 22 and for sealingly engaging with the sealing ring 22 and thus for effectively controlling the water to selectively flow out through the bore 23 of the sealing ring 22 and then to selectively or changeably flow out through either of the openings 21 of the revolving ring 20. A spring member 37 may be engaged onto the actuating rod 31 and engaged between the sealing block 32 and the water guide head 35 for selectively biasing or forcing the water guide head 35 and the plug 36 toward the sealing ring 22 after the actuating rod 31 has been moved rearwardly relative to the housing and when the trigger 18 is released by the user.
It is to be noted that it is only required to form and provide a plug 36 from the water guide head 35 for selectively engaging into the bore 23 of the sealing ring 22 and for sealingly engaging with the sealing ring 22 and thus for effectively controlling the water to selectively flow out through the bore 23 of the sealing ring 22 and then to selectively or changeably flow out through either of the openings 21 of the revolving ring 20, such that the multi-purpose sprayer gun 1 in accordance with the present invention may include a greatly simplified structure for reducing the manufacturing cost for the sprayer gun 1 and for allowing the sprayer gun 1 to be easily and quickly assembled.
Accordingly, the multi-purpose sprayer gun in accordance with the present invention includes a simplified structure for reducing the manufacturing cost for the sprayer gun and for allowing the sprayer gun to be easily and quickly assembled.
Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made by way of example only and that numerous changes in the detailed construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed.
