Patent Publication Number: US-6220530-B1

Title: Water spray nozzle control device

Description:
BACKGROUND OF THE INVENTION 
     The present invention relates to a water spray nozzle control device More particularly, the present invention relates to a water spray nozzle control device which can adjust an amount of flowing water. 
     A conventional water spray nozzle control device is used as a switch. The conventional water spray nozzle control device can turn on a water flow which flows into a water spray nozzle or turn off the water folw. However, the amount of flowing water cannot be adjusted by the conventional water spray nozzle control device. 
     SUMMARY OF THE INVENTION 
     An object of the present invention is to provide a water spray nozzle control device which can adjust an amount of water flowing into a water spray nozzle. 
     Another object of the present invention is to provide a water spray nozzle control device which has a positioning block engaging with a plurality of inner teeth in order to control a flowing amount of water. 
     Accordingly, a water spray nozzle control device comprises a main body, a rotatable collar, a positioning shaft, a water check collar, a plunger, a water sieve device, and a water stopping washer. The main body has a channel, a hollow threaded head, a handle, and a neck disposed between the handle and the hollow threaded head. The channel receives the water check collar, the plunger, the water sieve device, and the water stopping washer. The neck has a through hole receiving the positioning shaft. The rotatable collar has a plurality of inner teeth and two eccentric inner grooves. The rotatable collar encloses the neck. The handle has an outer flange, a front inner stepped flange, a rear inner stepped flange, an inner threaded end portion, and a plurality of anti-skid ribs. The front inner stepped flange blocks the water check collar. The rear inner stepped flange blocks the water stopping washer. A positioning block is disposed on the outer flange of the handle. The positioning shaft has a first distal end, an annular groove, a center camber, an annular recess, and a second distal end. A water stopping gasket is inserted in the annular groove. An annular gasket is inserted in the annular recess. The water check collar has an inner bevel, a round hole, and an enlarged circular hole communicating with the round hole. The plunger has a through aperture, a hollow cylinder, a tube disposed on a top end of the hollow cylinder, an outer bevel formed on a top portion of the hollow cylinder, and four wing plates disposed on the hollow cylinder. The tube is inserted through the round hole of the water check collar. The hollow cylinder is inserted in the enlarged circular hole of the water check collar. The water sieve device has a disk seat and four positioning plates. A plurality of sieve meshes are formed on the disk seat. The eccentric inner grooves of the rotatable collar receive the first distal end and the second distal end of the positioning shaft. When the rotatable collar is rotated to a close position, the rotatable collar forces the first distal end and the second distal end of the positioning shaft to move downward. The outer bevel of the plunger engages with the inner bevel of the water check collar. The positioning block engages with one of the inner teeth. When the rotatable collar is rotated to an open position, the rotatable collar forces the first distal end and the second distal end of the positioning shaft to move upward. The center camber of the positioning shaft blocks the tube. A spacing is formed between the outer bevel of the plunger and the inner bevel of the water check collar. The positioning block engages with one of the inner teeth. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a perspective exploded view of a water spray nozzle control device of a preferred embodiment in accordance with the present invention; 
     FIG. 1A is a perspective exploded view of a water sieve device of a preferred embodiment in accordance with the present invention; 
     FIG. 2 is a sectional assembly view of a water spray nozzle control device of a preferred embodiment while water is stopped; 
     FIG. 3 is a sectional assembly view of a water spray nozzle control device of a preferred embodiment while water is flowing out; 
     FIG. 4 is another sectional assembly view of a water spray nozzle control device of a preferred embodiment while water is stopped; and 
     FIG. 5 is another sectional assembly view of a water spray nozzle control device of a preferred embodiment while water is flowing out. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Referring to FIGS. 1,  1 A and  2 , a water spray nozzle control device comprises a main body  10 , a rotatable collar  70 , a positioning shaft  20 , a water check collar  30 , a plunger  40 , a water sieve device  50 , and a water stopping washer  60 . 
     The main body  10  has a channel  12 , a hollow threaded head  15 , a handle  102 , and a neck  101  disposed between the handle  102  and the hollow threaded head  15 . The channel  12  receives the water check collar  30 , the plunger  40 , the water sieve device  50 , and the water stopping washer  60 . 
     The hollow threaded head  15  engages with a water spray nozzle (not shown in the figures). 
     The neck  101  has a through hole  11  receiving the positioning shaft  20 . 
     The rotatable collar  70  has a plurality of inner teeth  72  and two eccentric inner grooves  71 . The rotatable collar  70  encloses the neck  101 . 
     The handle  102  has an outer flange  18 , a front inner stepped flange  13 , a rear inner stepped flange  14 , an inner threaded end portion  16 , and a plurality of anti-skid ribs  17 . 
     The front inner stepped flange  13  blocks the water check collar  30 . The rear inner stepped flange  14  blocks the water stopping washer  60 . 
     The inner threaded end portion  16  engages with a water pipe (not shown in the figures). 
     A positioning block  19  is disposed on the outer flange  18  of the handle  102 . 
     The positioning shaft  20  has a first distal end  21 , an annular groove  22 , a center camber  24 , an annular recess  22 ′, and a second distal end  21 ′. 
     A water stopping gasket  23  is inserted in the annular groove  22 . An annular gasket  23 ′ is inserted in the annular recess  22 ′. 
     The water check collar  30  has an inner bevel  33 , a round hole  31 , and an enlarged circular hole  32  communicating with the round hole  31 . 
     The plunger  40  has a through aperture  45 , a hollow cylinder  42 , a tube  41  disposed on a top end of the hollow cylinder  42 , an outer bevel  43  formed on a top portion of the hollow cylinder  42 , and four wing plates  44  disposed on the hollow cylinder  42 . 
     The tube  41  is inserted through the round hole  31  of the water check collar  30 . The hollow cylinder  42  is inserted in the enlarged circular hole  32  of the water check collar  30 . 
     The water sieve device  50  has a disk seat  52  and four positioning plates  51 . A plurality of sieve meshes  53  are formed on the disk seat  52 . 
     The eccentric inner grooves  71  of the rotatable collar  70  receive the first distal end  21  and the second distal end  21 ′ of the positioning shaft  20 . 
     Referring to FIGS. 2 and 4, the rotatable collar  70  is rotated to a close position. The rotatable collar  70  forces the first distal end  21  and the second distal end  21 ′ of the positioning shaft  20  to move downward. The outer bevel  43  of the plunger  40  engages with the inner bevel  33  of the water check collar  30 . The positioning block  19  engages with one of the inner teeth  72 . 
     Referring to FIGS. 3 and 5, the rotatable collar  70  is rotated to an open position. The rotatable collar  70  forces the first distal end  21  and the second distal end  21 ′ of the positioning shaft  20  to move upward. The center camber  24  of the positioning shaft  20  blocks the tube  41 . A spacing is formed between the outer bevel  43  of the plunger  40  and the inner bevel  33  of the water check collar  30 . The positioning block  19  engages with one of the inner teeth  72 . Therefore, the amount of flowing water is adjusted by the water spray nozzle control device. 
     The invention is not limited to the above embodiment but various modification thereof may be made. Further, various changes in form and detail may be made without departing from the scope of the invention.