Patent Publication Number: US-9895702-B2

Title: Single pushbutton device for switching to output water with multiple spray patterns

Description:
BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The present invention relates a to a single button device and, more particularly, to a single pushbutton device for switching to output water with multiple spray patterns. 
     Description of the Related Art 
     Currently, water output devices may adopt a single pushbutton device with a single water output and a multi-functional pushbutton device with multiple water outputs. However, the multi-functional pushbutton device is disadvantageous in complicated structure, high force exertion in operation, and poor operational stability and thus fails to provide convenient and comfortable experience in the use thereof. 
     SUMMARY OF THE INVENTION 
     In view of the problems and drawbacks of the prior art, the objective of the present invention is to provides a single pushbutton device for switching to output water with multiple spray forms being compact in size and facilitating convenient and quick operation with less force required upon operation. 
     To achieve the foregoing objective, a single pushbutton device for switching to output water with multiple spray patterns includes a housing, a bushing, a water channel assembly, a rotary assembly and a button. 
     The housing is tubular and has a front end, a rear end and a hole formed through a peripheral wall of the housing. 
     The bushing is mounted inside the top end of the housing with a bubbler mounted inside the bushing. 
     The water channel assembly includes a water tube, multiple abutting inserts and multiple first springs. 
     The water tube has a front portion, a rear portion and multiple recesses. 
     The front portion is connected with the bushing. 
     The multiple recesses are formed in the water tube and are located around the water tube. 
     The multiple abutting insert are mounted and are movable in the recesses of the water tube. Each abutting insert has a nose formed on a top thereof. 
     Each first spring is mounted between the a corresponding abutting insert and the water tube. 
     The rotary assembly is mounted around the water channel assembly and has a rotary sleeve, a ratchet and a pressing frame. 
     The rotary sleeve has a front end, a rear end, and a bump. The bump is formed on an inner wall of the rotary sleeve. 
     The ratchet is mounted on the rear end of the rotary sleeve. The rear portion of the water tube is connected with the ratchet. 
     The pressing frame is mounted through the ratchet, is mounted inside the housing, and has a projected portion formed on a top portion of the pressing frame. 
     The button is mounted through the hole of the housing and is mounted on the projected portion of the pressing frame. 
     When push down the button, the rotary sleeve of the rotary assembly is rotated, the bump of the rotary sleeve is rotated along multiple noses of the multiple abutting inserts of the water channel assembly to sequentially press down the abutting inserts, further open different waterways, and output water with different spray. The single pushbutton device ensures to be compact, facilitates quick and convenient operation, and requires less force exerted thereon for operation 
     When compared to conventional techniques, the present invention has the following advantages, small size, simple structure, convenient operation, and have multiple water output functions. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The detailed description of the drawings particularly refers to the accompanying figures in which: 
         FIG. 1  is a perspective view of a single pushbutton device for switching to output water with multiple spray patterns in accordance with the present invention; 
         FIG. 2  is an exploded perspective view of the single pushbutton device in  FIG. 1 ; 
         FIG. 3  is a cross-sectional view of the single pushbutton device in  FIG. 1 ; 
         FIG. 4  is an operational cross-sectional view of the single pushbutton device in  FIG. 1 ; 
         FIG. 5  is a cross-sectional view of the single pushbutton device in  FIG. 1  showing one water channel of the single pushbutton device; 
         FIG. 6  is a cross-sectional view of the single pushbutton device in  FIG. 1  showing another water channel of the single pushbutton device; 
         FIG. 7  is a cross-sectional view of a stop pawl of the single pushbutton device in  FIG. 1 ; 
         FIG. 8  is a cross-sectional view of the single pushbutton device in  FIG. 1  when the single pushbutton device is not operated; 
         FIG. 9  is a cross-sectional view of the single pushbutton device in  FIG. 1  when the single pushbutton device is pressed down; and 
         FIG. 10  is a cross-sectional view of the single pushbutton device in  FIG. 1  when the single pushbutton device is restoring without force exerted thereon. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     The purpose, construction, features, functions and advantages of the present invention can be appreciated and understood more thoroughly through the following detailed description with reference to the attached drawings. 
     With reference to  FIGS. 1 and 6 , a single pushbutton device for outputting water with multiple spray patterns in accordance with present invention includes a housing  1 , a bubbler  2 , a bushing  3 , a water channel assembly  15 , a rotary assembly  16 , and a button  8 . 
     The housing  1  is tubular and has a front end, a rear end and a hole  1 - 1 . The hole  1 - 1  is formed through a peripheral wall of the housing  1 . The button  8  is mounted through the hole  1 - 1  of the housing  1  and protrudes beyond the hole  1 - 1 . The button  8  controls the rotary assembly  16  to rotate to adjust the water channel assembly  15 . 
     The bushing  3  is mounted inside the front end of the housing  1 , and the bubbler  2  is centrally mounted inside of the bushing  3 . The bushing  3  has multiple waterways formed through the bushing  3  and outputting water with multiple spray forms. 
     The water channel assembly  15  includes multiple abutting inserts  4 , multiple first spring  5  and a water tube  6 . The water tube  6  has a front portion  6 - 1 , a rear portion  6 - 2  and multiple recesses  6 - 3 . The front portion  6 - 1  of the water tube  6  is connected with the bushing  3 . The recesses are formed in the water tube  6 , are located around the water tube  6 , and communicate with corresponding waterways of the bushing  3 . The water channel assembly  15  is collaborated with the bushing  3  to output water with multiple spray patterns through the corresponding waterways of the bushing  3 . The abutting inserts  4  are mounted and are movable in the respective recesses of the water tube  6 . Each first spring  5  is mounted between a corresponding abutting insert  4  and the water tube  6 . Each abutting insert  4  has a nose  4 - 1  formed on a top of the abutting insert. 
     The rotary assembly  16  is mounted around the water tube  6  and includes a pressing frame  7 , a rotary sleeve  9 , a ratchet  10 , a driving pawl  11  and a stop pawl  12 . The rotary sleeve  9  has a front end and a rear end, and the ratchet  10  is mounted on the rear end of the rotary sleeve  9 . The water channel assembly  15  is mounted inside of the rotary sleeve  9 , and the rear portion  6 - 2  of the water tube  6  is connected with the ratchet  10 . The rotary sleeve  9  has a bump  14  formed on an inner wall of the rotary sleeve  9  and selectively connected with the noses  4 - 1  of the abutting inserts  4 . The pressing frame  7  is mounted around the ratchet  10 , is mounted inside the housing  1 , and has a projected portion  7 - 1  formed on a top portion of the pressing frame  7 . The driving pawl  11  is mounted between the pressing frame  7  and the ratchet  10 . Multiple second springs  13  are mounted between the pressing frame  7  and the housing  1 . The stop pawl  12  is mounted between the ratchet  10  and the housing  1 . 
     The button  8  is mounted through the hole  1 - 1  of the housing  1  and is mounted on the projected portion  7 - 1 . 
     With reference to  FIGS. 7 to 10 , before the button  8  is pressed, the stop pawl  12  engages an initial tooth of the ratchet  10 . When the button  8  is pushed down, the button  8  presses down the pressing frame  7 , the pressing frame  7  further presses the second spring  13  and drives the driving pawl  11 , the driving pawl  11  then drives the ratchet  10  to rotate, such that the stop pawl  12  engages a tooth of the ratchet  10  next to the initial tooth. When the button  8  is released, the restoring elastic force of the second spring  13  pushes the driving pawl  11  back to its original position. 
     As the pressing frame  7  is reciprocally moved inside of the housing  1  by the force exerted on the pressing frame  7  and the restoring elastic force of the second spring  13 , when the ratchet  10  is moved and the stop pawl  12  engages a next tooth of the ratchet  10 , the forces exerted on the pressing frame  7  can be balanced by the restoring elastic force in return, thereby causing no discomfort to user&#39;s hand upon pressing the button  8  because of unilateral force application. 
     After the button  8  is pushed down, the rotary sleeve  9  is rotated. Thus, the bump  14  is rotated with the rotary sleeve  9  and the bump  14  is rotated along the noses  4 - 1  of the abutting inserts  4 . Only one of the abutting inserts  4  is pressed down by the bump  14  at a time for water to flow into a corresponding recess of the water tube  6  uncovered by the abutting insert  4  and flow out through different waterways of the bushing  3  to provide multiple water outputs and bubbling functions.