Abstract:
The present invention provides a combination showerhead with press button switching comprising fixing holder, two showerheads and switching mechanism. The first showerhead is mounted to fixing holder; fixing holder comprises an inlet passage and two diversion passages. The switching mechanism comprises diversion plate, transmission mechanism, sliding block and press button. Diversion plate is connected to fixing holder movably and cooperated with inlet and diversion passages to switching waterway by predetermined angle rotating. Sliding block is slidably connected to fixing holder; the transmission mechanism is connected between the diversion plate and the sliding block in transmission way so that back-and-forth sliding of sliding block drives diversion plate to rotate step-by-step in predetermined angle. Press button is movably connected to fixing holder and connected to sliding block in transmission way to drive sliding block to slide. The combination showerhead is novel and convenient for one-handed operation with reasonable layout and compact structure.

Description:
FIELD OF THE INVENTION 
       [0001]    The present invention relates to combination showerhead, and especially to a combination showerhead with press button switching. 
       BACKGROUND OF THE INVENTION 
       [0002]    The existing combination showerhead, as Chinese patent No. 103521369A disclosed, is a shower system comprising a top-spray showerhead with at least two spray types and a handle showerhead, and the top-spray showerhead is disposed with an inlet passage for water supply and first diversion passages corresponding to spray types; the top-spray showerhead is disposed with a second diversion passage connected to the handle showerhead by a hose; a switching mechanism disposed on the top-spray showerhead is capable of switching waterway by cooperating with the inlet, first passages and second passages, thereby any of the diversion passage could be selected to connect with the inlet, however, the structure is not compact enough and needs further improvement. 
       SUMMARY OF THE INVENTION 
       [0003]    The objective of present invention is to provide combination showerhead with press button switching, which overcome the disadvantages of the existing technology. 
         [0004]    The technical proposal of the present invention is that: 
         [0005]    A combination showerhead with press button switching comprising: a fixing holder ( 10 ) mounted to supporting arm, a first showerhead ( 20 ) mounted to the fixing holder, a second showerhead ( 30 ) and a switching mechanism ( 40 ), the fixing holder ( 10 ) comprises an inlet passage ( 11 ) connected to the supporting arm and at least two diversion passages ( 12 ) of which one is connected to the second showerhead ( 30 ) and others are connected to the first showerhead ( 20 ); 
         [0006]    wherein the switching mechanism ( 40 ) comprises a diversion plate ( 41 ), a transmission mechanism, a sliding block ( 43 ) and a press button ( 45 ); the diversion plate ( 41 ) is at least movable relative to the fixing holder ( 10 ) and cooperated with the inlet passage ( 11 ) and the diversion passages ( 12 ) to switching waterway by predetermined angle rotating; the sliding block ( 43 ) is slidably connected to the fixing holder ( 10 ), the transmission mechanism is connected between the sliding block ( 43 ) and the diversion plate ( 41 ) in transmission way to drive the diversion plate ( 41 ) to rotate in predetermined angle by back-and-forth sliding of the sliding block; the press button ( 45 ) is movably connected to the fixing holder ( 10 ) and connected to the sliding block ( 43 ) in transmission way to drive the sliding block ( 43 ) to slide. 
         [0007]    In one preferred embodiment, the transmission mechanism comprises a valve core ( 42 ) slidably connected to the fixing holder ( 10 ) and a shaft ( 46 ) fixed to the diversion plate ( 41 ), slip directions of the valve core ( 42 ) and the sliding block ( 43 ) intersect, and sliding of the sliding block ( 43 ) drives the valve core ( 42 ) to slide, back-and-forth sliding of the valve core ( 42 ) drives the shaft ( 46 ) along with the diversion plate ( 41 ) to rotate in predetermined angle. 
         [0008]    In another preferred embodiment, the end of the valve core ( 42 ), the end of the shaft ( 46 ) and the fixing holder ( 10 ) are disposed with ratchets; the diversion plate ( 41 ) is rotatable and movable along rotation axis relative to the fixing holder ( 10 ); 
         [0009]    the switching mechanism ( 40 ) further comprises a elastomer ( 44 ) abuts against between the diversion plate ( 41 ) and the fixing holder ( 10 ); the ratchets disposed on the end of the valve core ( 42 ), the shaft ( 46 ) and the fixing holder ( 10 ) work in coordination to form pencil lead mechanism. 
         [0010]    In another preferred embodiment, the sliding block ( 43 ) is disposed with a first inclined plane ( 431 ) for guiding, and the valve core ( 42 ) abuts against the first inclined plane ( 431 ) of the sliding block ( 43 ). 
         [0011]    In another preferred embodiment, bottom of the valve core ( 42 ) is disposed with a second inclined plane ( 421 ) for guiding and the second inclined plane ( 421 ) abuts against the first inclined plane ( 431 ). 
         [0012]    In another preferred embodiment, the press button ( 45 ) is slidably connected to the fixing holder ( 10 ), and the press button ( 45 ) abuts against or be fixed on the sliding block ( 43 ). 
         [0013]    In another preferred embodiment, the switching mechanism ( 40 ) further comprises a spring ( 47 ) abuts against between the sliding block ( 43 ) and the fixing holder ( 10 ). 
         [0014]    In another preferred embodiment, back of the fixing holder ( 10 ) is convexly disposed with a assembly portion ( 13 ) and the switching mechanism ( 40 ) is disposed inside the assembly portion ( 13 ), the press button ( 43 ) is movably connected to the assembly portion ( 13 ) with at least part locates outside for pressing. 
         [0015]    In another preferred embodiment, the second showerhead ( 30 ) is handle showerhead; the outlet of the diversion passages ( 12 ) connected to the second showerhead ( 30 ) is disposed on the sidewall of the assembly portion ( 13 ), and the handle showerhead connects with corresponding outlet through a flexible hose ( 50 ), front lower part of the fixing holder ( 10 ) is disposed with a connecting portion ( 14 ) for handle showerhead positioning. 
         [0016]    In another preferred embodiment, the second showerhead ( 30 ) is fixed showerhead fixed on the front lower part of the fixing holder ( 10 ). 
         [0017]    In another preferred embodiment, the fixing holder ( 10 ) has a common portion ( 15 ) and two forking portion ( 16 ) forking extend from the common portion ( 15 ), the first showerhead ( 20 ) is rotatably connected between the two forking portion ( 16 ); a hose piece ( 21 ) is disposed along the rotation axis of the first showerhead ( 20 ) and connected to the first showerhead ( 20 ), and other diversion passages ( 12 ) is connected to the first showerhead ( 20 ) along the hose piece ( 21 ). 
         [0018]    In another preferred embodiment, the assembly portion ( 13 ) is disposed on the back of the common portion ( 15 ). 
         [0019]    In another preferred embodiment, the first showerhead ( 20 ) is capable of rotatably connected to the fixing holder ( 10 ), and a damping mechanism ( 60 ) is disposed between the fixing holder ( 10 ) and the first showerhead ( 20 ). 
         [0020]    In another preferred embodiment, the damping mechanism ( 60 ) comprises a locating holder ( 61 ), a turning block ( 62 ) and a cam ( 63 ), at least two dangling pieces ( 64 ) disposed separately in circumferential direction on the locating holder ( 61 ) form a rotary sleeve-like structure with at least part of the inner wall being of radii changing, the cam ( 63 ) is disposed in the rotary sleeve to match the radii changing part, the turning block ( 62 ) is sleeved on the rotary sleeve, friction force of the dangling pieces ( 64 ) and the turning block ( 62 ) changes with rotation of the cam ( 63 ) relative to the radii changing part and thereby the damping changes. In another preferred embodiment, the fixing holder ( 10 ) has a common portion ( 15 ) and the first showerhead ( 20 ) is rotatably connected to the common portion ( 15 ); at least a hose piece ( 21 ) disposed along the rotation axis of the first showerhead ( 20 ) is connected to the first showerhead ( 20 ), and other diversion passages ( 12 ) are connected to the first showerhead ( 20 ) along the hose piece ( 21 ). 
         [0021]    Comparing to the existing technology, the present invention has advantages as follows: 
         [0022]    1. The switching mechanism is disposed on fixing holder; the first showerhead could be new design or existing one; the switching mechanism comprises diversion plate, transmission mechanism, sliding block and press button, the press button drives the sliding block to slide and the sliding block drives the diversion plate to rotate through transmission mechanism, thereby the switching is realized; The switching with press button driving is novel and convenient for one-handed operation, moreover, the slip direction of the sliding block and the position of the press button could be disposed according to the structure requirement of the fixing holder, which is of reasonable layout and compact structure. 
         [0023]    2. The transmission mechanism comprises valve core and shaft, sliding of the sliding block drives the valve core to slide, and sliding of the valve core drives the shaft along with the diversion plate to rotate in predetermined angle; slip directions of the valve core and the sliding block intersect, thereby the slip direction of the sliding block could be disposed according to the structure requirement of the fixing holder, which is of reasonable layout and compact structure. 
         [0024]    3. All the valve core, shaft and fixing holder are disposed with ratchets, the ratchets works in co-ordination to form pencil lead mechanism, push of valve core drives shaft to slide upward and rotate positively in ½ predetermined angle, and reset of valve core drives shaft to slide downward and rotate positively in ½ predetermined angle again, thereby back-and-forth sliding of the valve core drives the shaft along with diversion plate to rotate in predetermined angle, which is of simple structure, dependable switching stability and easy operation. 
         [0025]    4. The second inclined plane abuts against the first inclined plane, and thereby the transmission is stable and reliable. 
         [0026]    5. Back of the fixing holder is convexly disposed with an assembly portion and the switching mechanism is disposed inside the assembly portion, the press button is movably connected to the assembly portion with at least part locates outside for user&#39;s pressing, which is of reasonable layout, compact structure, good-looking appearance and easy operation. 
         [0027]    6. A connecting portion for handle showerhead positioning is disposed on the front lower part of the fixing holder, which facilitate the user to take down or lay up with good-looking appearance. 
         [0028]    7. The fixing holder has common portion and forking portions, the first showerhead is rotatably connected between the two forking portions; since the first showerhead is rotatable, users can adjust the angle of water flowing according to needs, which is convenient. 
         [0029]    8. Damping mechanism is disposed between the forking portion of the fixing holder and the first showerhead so that the first showerhead could be positioned in a certain angle. 
         [0030]    9. With rotation of the cam relative to the radii changing part, friction force of the dangling pieces and the turning block changes and thereby the damping changes, which is of simple and compact structure and easy to use. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0031]    The present invention will be further described with the drawings and the embodiments. 
           [0032]      FIG. 1  illustrates a perspective schematic diagram of the combination showerhead of a preferred embodiment. 
           [0033]      FIG. 2  illustrates a cross-section schematic diagram of the combination showerhead of a preferred embodiment under condition that water flows from the first showerhead. 
           [0034]      FIG. 3  illustrates a B-B cross-section schematic diagram of the combination showerhead of  FIG. 2 . 
           [0035]      FIG. 4  illustrates a local enlarged schematic diagram of the combination showerhead of  FIG. 2 . 
           [0036]      FIG. 5  illustrates a C-C cross-section schematic diagram of the combination showerhead of  FIG. 2  under condition of the first function. 
           [0037]      FIG. 6  illustrates a C-C cross-section schematic diagram of the combination showerhead of  FIG. 2  under condition of the second function. 
           [0038]      FIG. 7  illustrates a cross-section schematic diagram of the combination showerhead of a preferred embodiment under condition that water flows from both of the first showerhead and second showerhead. 
           [0039]      FIG. 8  illustrates a cross-section schematic diagram of the combination showerhead of a preferred embodiment under condition that water flows from the second showerhead. 
           [0040]      FIG. 9  illustrates an exploded perspective schematic diagram of the combination showerhead of a preferred embodiment. 
           [0041]      FIG. 10  illustrates a front view of the damping mechanism of a preferred embodiment. 
           [0042]      FIG. 11  illustrates a cross-section schematic diagram of the damping mechanism of a preferred embodiment. 
           [0043]      FIG. 12  illustrates an A-A cross-section schematic diagram of the damping mechanism of  FIG. 11 . 
           [0044]      FIG. 13  illustrates a perspective schematic diagram of the combination showerhead of another preferred embodiment. 
           [0045]      FIG. 14  illustrates an exploded perspective schematic diagram of the combination showerhead of another preferred embodiment. 
       
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
       [0046]    Combination showerhead with press button switching refers to  FIG. 1  to  FIG. 12  comprises fixing holder  10 , first showerhead  20 , second showerhead  30  and switching mechanism  40 . Fixing holder  10  could be mounted to supporting arm which could be water supply pipe fixed on the wall and the connection could be permanent connection or universal connection coordinate with spherical structure. The first showerhead  20  could be top spray showerhead or head showerhead mounted to fixing holder  10 . The first showerhead  10  could have one or more function for different water spray types. Fixing holder  10  comprises inlet passage  11  connected to supporting arm and at least two diversion passages  12 . 
         [0047]    One diversion passage  12  is connected to second showerhead  30 ; 
         [0048]    Others are connected to first showerhead  20 , wherein: 
         [0049]    If the first showerhead  20  has one water spray function, the amount of diversion passages  12  is 2. 
         [0050]    If the first showerhead  20  has more than one water spray function, the amount of other diversion passages  12  could be 1, and the switching of first showerhead and second showerhead is realized by switching mechanism  40  while switching of water spray function on the first showerhead  20  is realized by another switching mechanism which is additional; or the amount of other diversion passages  12  could be equal to the amount of function with one to one connection, and switching mechanism  40  is capable of switching the second showerhead  30  and functions of the first showerhead  20 , as shown in  FIG. 5  and  FIG. 6 . 
         [0051]    Fixing holder  10  has a common portion  15  and two forking portion  16  forking extend from common portion  15 , and the back of common portion  15  is convexly disposed with assembly portion  13 . In this embodiment, fixing holder  10  comprises front cover  17  and back cover  18 , first cover  17  and back cover  18  are fixed and connected to form common portion and forking portion described above. Through hole is disposed on back cover corresponding to common portion and the edge of through hole extends backwards to form assembly portion  13 . 
         [0052]    Switching mechanism  40  is mounted in assembly portion  13  for switching at least two diversion passages  12  to connect with inlet passage so as to switching the first showerhead and the second showerhead/different functions of the second showerhead. The switching could be between water flows from the first showerhead or second showerhead/any water spray function of second showerhead, or, between water flows from the first showerhead or second showerhead/any water spray function of second showerhead only or both of the first showerhead and second showerhead. Switching mechanism  40  comprises diversion plate  41 , transmission mechanism, sliding block  43 , elastomer  44  and press button  45  and spring  47 . Diversion plate  41  is connected to fixing holder  10  in a way that it is rotatable and movable along rotation axis relative to fixing holder  10  and cooperated with inlet passage  11  and diversion passages  12  so as to switch waterway by predetermined angle rotating. For example, diversion plate  41  could have through hole and with alignment or separation of through hole and diversion passages to realize water connection or disconnection, or, diversion plate  41  could be fan-shaped and cover diversion hole of diversion passage  12  completely or incompletely to realize water connection or disconnection. The sliding block  43  can slide vertically to the axis of the diversion plate relative to assembly portion of the fixing seat  10 , transmission mechanism is connected between sliding block  43  and diversion plate  41  in transmission way so that back-and-forth sliding of sliding block  43  drives diversion plate  41  to rotate step-by-step in predetermined angle; press button  45  is slidably connected to fixing holder  10  and connected to sliding block  43  in transmission way to drive sliding block  43  to slide; elastomer  44  abuts against between diversion plate  41  and the fixing holder with which elastic force towards shaft is applied on the diversion plate, thereby resetting the diversion plate in axial and the valve core is reset; spring  47  is capable of resetting sliding block  43 . 
         [0053]    Specifically, assembly portion is disposed with slide through hole and press button is slidably connected in slide hole and at least part locates outside for pressing; side of the sliding block opposite to the press button is concavely disposed with a slot, the press button opposite to the sliding block is disposed with a plug, and the plug insets into the slot and fixed so that press button could slide together with sliding block; The transmission mechanism comprises valve core  42  slidably connected to fixing holder  10  and shaft  46  fixed to diversion plate  41 , slip directions of valve core  42  and sliding block  43  intersect, for example, the sliding block slides along radial direction of assembly portion while valve core along axial direction, and sliding of sliding block  43  drives the valve core  42  to slide. The end of valve core  42  and shaft  46  are disposed with ratchets  422  and  461  respectively, and fixing holder  10  is disposed with ratchets also, ratchets works in co-ordination to form pencil lead mechanism. Valve core  42  drives shaft  46  together with diversion plate  41  to slide upward and rotate positively in ½ predetermined angle, and reset of valve core  42  drives shaft  46  together with diversion plate  41  to slide downward and rotate positively in ½ predetermined angle again. Elastomer  44  abuts against between sides of diversion plate back to shaft and assembly portion, since diversion plate moves upward, elastomer is in pressure, as press button released, elastomer is also released to drive diversion plate slide back, so as to reset valve core. When user push the press button upward, valve core slide upward together with valve core, valve core drive shaft  46  together with diversion plate to slide upward and rotate positively in ½ predetermined angle, and elastomer stores energy meanwhile; when release the press button, elastomer is also released and push diversion plate to slide downward and rotate positively in ½ predetermined angle together with shaft again, thereby push valve core and press button to reset. Preferably, sliding block  43  is disposed with a first inclined plane  431  for guiding, bottom of valve core  42  is disposed with a second inclined plane  421  for guiding and the second inclined plane  421  abuts against the first inclined plane  431 . The spring  47  abuts against between sliding block  43  back facing press button and assembly portion of fixing holder  10 . When user presses press button  45 , press button  45  along with sliding block  43  slides inward, and with cooperation of the first inclined plane  431  and the second inclined plane  421 , valve core  42  slides upward and drives shaft to rotate in ½ predetermined angle, in this situation, elastomer and spring compress and store energy; when press button  45  is undone, the diversion plate slides downward and rotates positively in ½ predetermined angle under elastic force of elastomer  44  and thereby drives valve core to reset; sliding block and press button also reset under action of spring  47 . 
         [0054]    In this embodiment, fixing holder further comprises fixing seat  131 , diversion body  132  and connecting seat  133  disposed in assembly portion; connecting seat  133  is mounted to supporting arm via ball joint  134 . Diversion cavity is formed between connecting seat  133  and fixing seat  131  which form part of inlet passage  11 . Diversion plate  41  is rotatably connected on fixing seat  131  and elastomer  44  is configured between diversion plate and connecting seat  133  so that diversion plate  41  is rotatably connected on the bottom of fixing seat  131  in seal. Fixing seat  131  is disposed with at least two diversion holes to form part of diversion passages  12  respectively, and with rotating of diversion plate, different diversion holes connecting to diversion cavity is switched, so that switching of different diversion passages connecting to inlet passage  11  is realized. Diversion body  132  is mounted to fixing seat  131  and comprises at least two water passages which connecting to diversion holes respectively and form part of diversion passages  12 . Fixing seat  131  is disposed with through-hole, shaft pass through through-hole rotatably while valve core is slidably connected in through-hole, and ratchets of fixing holder is disposed on through-hole; diversion body  132  is concavely disposed with groove and sliding block and elastomer are connecting in groove, sliding block works coordinated with valve core and press button. 
         [0055]    The first showerhead  20  is rotatably connected between two forking portion  16 . A hose piece  21  disposed along the rotation axis of the first showerhead  20  is connected to the first showerhead  20  and a tube  22  is disposed on the other end. The hose piece  21  and tube  22  forms a L-shape, and other diversion passages  12  are disposed along hose piece  21  and tube  22 . If there is only one diversion passage  12 , then hose piece  21  and tube  22  could be part of diversion passage. 
         [0056]    A damping mechanism  60  is disposed between forking portion  16  of fixing holder  10  and the first showerhead  20 , which comprises locating holder  61 , turning block  62  and cam  63 . Locating holder  61  comprises a base and two dangling pieces  64  disposed separately in circumferential direction of locating holder  61  which forms a rotary sleeve-like structure as lancing forms between two dangling pieces  64 . Outer wall of rotary sleeve-like structure is rotative surface, while inner wall is radii changing and forms radii changing part, cam  63  is disposed in the rotary sleeve to match the radii changing part; turning block  62  is sleeved on the rotary sleeve, friction force of dangling pieces  64  and turning block  62  changes with rotation of the cam  63  relative to the radii changing part and thereby the damping changes. In a preferred situation, the base is perforative so that one end surface of cam  63  is exposed and disposed with matching groove  631  for driving cam to rotate by users. Locating holder  61  and turning block  62  are connecting on components with relative rotation respectively, such as forking portion and the first showerhead. 
         [0057]    In one embodiment, the second showerhead  30  is handle showerhead. Front lower part of common portion  15  is disposed with a connecting portion  14  for handle showerhead positioning. Connecting portion could, but not limited, be a plug base or magnetic structure. The diversion passage  12  connected to the second showerhead  30  is further comprises a connector  46  to connect one water passage of the diversion body, and end opening of connector  46  forms water outlet. The connector could pass through assembly portion  13 , and the handle showerhead is connected to outlet of corresponding diversion passage  12  via a hose  50 . 
         [0058]    In another preferred embodiment as shown in  FIG. 13  to  FIG. 14 , the different comparing to above embodiment is that: the second showerhead  30  is fixed showerhead fixed on the front lower part of the common portion of fixing holder  10 , and water passage of the diversion body connects to fixed showerhead directly. The common portion is convexly disposed with a convex part  19 , and the first showerhead is convexly disposed with two convex lugs  23 . Convex part  19  is configured between two convex lugs and the first showerhead is connected to convex part via pivot. The pivot is hollow for the other diversion passages passing through to connect to the first showerhead. The damping mechanism is configured between the convex part and the convex lugs, which comprises a connecting part  66  disposed on convex part  19 . There could be one connecting part  66  having cylindrical surface, or more than one connecting parts  66  arrange in circumferential direction separately with each one has cylindrical surface. The cylindrical surface is convexly disposed with damping teeth  661 . Convex lug  23  is concavely disposed with groove  24  which sleeve-connecting to the connecting part. Inner wall of groove  24  is also convexly disposed with damping teeth  221  separately mating damping teeth  661  to realize damping. 
         [0059]    In another preferred embodiment, the diversion plate is just rotatably connected to the fixing holder  10  without ratchets. Since sliding of the diversion plate is limited, and with co-ordination of ratchets in the valve core and shaft, the valve core drives shaft together with diversion plate to rotate in predetermined angle directly. 
         [0060]    Although the present invention has been described with reference to the preferred embodiments thereof for carrying out the patent for invention, it is apparent to those skilled in the art that a variety of modifications and changes may be made without departing from the scope of the patent for invention which is intended to be defined by the appended claims.