Abstract:
Coupling device for sanitary fitting is disclosed. The present invention relates to a coupling device, and in particular, a coupling device for mounting sanitary fittings such as showering fitting disposed onto the walls of the bathroom

Description:
BACKGROUND OF THE INVENTION  
         [0001]    (a) Technical Field of the Invention  
           [0002]    The present invention relates to a coupling device, and in particular, a coupling device for mounting sanitary fittings such as fittings used in bathroom disposed onto the walls thereof.  
           [0003]    (b) Description of the Prior Art  
           [0004]    [0004]FIG. 1 shows a conventional sanitary fitting coupling device having a circular securing seat  42  fitted on a mounting surface. The base of a conventional sanitary fitting seat  40  is then inserted onto the external circumferential edge of the securing seat  42  so that the two components are horizontally secured. A positioning screw  41  is inserted into a screw hole on the circumferential edge of the fitting seat  40  to secure the fitting seat  40  to the securing seat  42 . There are numerous of drawbacks in the process of installation the sanitary fittings as follows:  
           [0005]    (1) Installation Procedures Are Laborious  
           [0006]    The installation processes have to be in such a sequence that the securing seat  42  has to be mounted first and other components of the sanitary fittings are then installed. Then a measuring tool is used to measure whether the fittings are mounted in parallel to the wall. The fitting seat  40  has to be held with one hand and another hand screws the positioning screw  41  to the securing seat  42 . Occasionally the hand used to screw the positioning screw  41  moves accidentally, and the measuring process to obtain a parallel position has to be repeated again. Thus the procedure of installation is laborious and time consuming.  
           [0007]    (2) Difficulty in Positioning  
           [0008]    The positioning of the sanitary fittings depends on the positioning screw  41 . As a result, there is no other element to provide support to the sanitary fittings, the fitting seat may move either horizontally or dislocated.  
           [0009]    (3) Difficulty in Dismantling  
           [0010]    In the process of replacement of the sanitary fitting, the positioning screw  41  has to be unscrewed, and installation procedures have to be repeated. Thus, the procedures are laborious and are not effective.  
         SUMMARY OF THE INVENTION  
         [0011]    Accordingly, it is an object of the present invention to provide a coupling device for sanitary fittings having a seat body including a main body, and rod body and a hook body, characterized in that the upper end face of the seat body is provided with a positioning slot, and the main body comprises a bottom fastening plate and a top fastening plate, the protruded edge at the front end of the bottom fastening plate is a stepped body and a bottom protruded edge is located at the upper edge side and the bottom edge is a fastening side, the center of the bottom fastening plate corresponding to that of the top fastening plate is a hook-like fastening block having a fastening slot the two sides of the corresponding top and bottom fastening plate are provided with a securing hole for the insertion of screw for mounting, a stepped slot is provided at a recessed region on the top fastening plate corresponding to the bottom fastening plate, and a top protruded edge is located at the side edge, a fastening passage is formed within the recessed region of the top fastening plate, difference in height between the top protruded edge and the fastening passage, and the bottom protruded edge of the bottom fastening plate and the fastening side are fastened to each other, a recessed passage is provided at one recessed end face formed on the top fastening plate corresponding to the bottom fastening plate, one side of the recessed passage is two positioning sides which are in parallel and the two sides of the recessed passage are provided with a connection hole, two isolation plates which are in parallel are mounted within the seat body and the width between the two isolation plates is that the two sides of the positioning side urge in parallel, the front edge of the two isolation plates are provided with two screw holes for the mounting of two screws to the connection holes so as to connect the top fastening plate to the front edge of the isolation plate.  
           [0012]    Yet another object of the present invention is to provide a coupling device for sanitary fittings, wherein the mounting of the seat body is convenient and the mounting is secured.  
           [0013]    The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.  
           [0014]    Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.  
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0015]    [0015]FIG. 1 is a perspective view of a conventional coupling device for a sanitary fitting.  
         [0016]    [0016]FIG. 2 is a partial sectional view of the coupling device of the present invention.  
         [0017]    [0017]FIG. 3 is a perspective exploded view of the coupling device of the present invention.  
         [0018]    [0018]FIGS. 4 and 5 schematically show the implementation of the coupling device in accordance with the present invention.  
         [0019]    [0019]FIGS. 6A and 6B are a sectional view of the coupling device of the present invention.  
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0020]    The following descriptions are of exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.  
         [0021]    Referring to FIGS. 2 and 3, there is shown a coupling device used for mounting sanitary fittings having a seat body including a main body  10 , and rod body  21  and a hook body  22 . The upper end face of the seat body  20  is provided with a positioning slot  201 , and the main body  10  comprises a bottom fastening plate  11  and a top fastening plate  12 . The protruded edge at the front end of the bottom fastening plate  1  is a stepped body. A bottom-protruded edge  13  is located at the upper edge side of the main body  10  and the bottom edge is a fastening side. The center of the bottom fastening plate  11  corresponding to that of the top fastening plate  12  is a hook-like fastening block  111  having a fastening slot  112 . The two sides of the corresponding top and bottom fastening plate  11 ,  12  are provided with a securing hole  115  for the insertion of screw  31  for mounting. A stepped slot is provided at a recessed region on the top fastening plate  12  corresponding to the bottom fastening plate  11 , and a top protruded edge  121  is located at the side edge, and a fastening passage  122  is formed within the recessed region of the top fastening plate  12 , the difference in height between the top protruded edge  121  and the fastening passage  122 , and the bottom protruded edge  113  of the bottom fastening plate  11  and the fastening side are fastened to each other. A recessed passage  125  is provided at one recessed end face formed on the top fastening plate  12  corresponding to the bottom fastening plate  11 , one side of the recessed passage  125  is two positioning sides which are in parallel and the two sides of the recessed passage  125  are provided with a connection hole  124 .  
         [0022]    Referring to FIG. 2, the seat body  20  is provided with two isolation plates  202 , which are in parallel, are mounted within the seat body  20 . The width between the two isolation plates  202  is that the two sides of the positioning side  123  can be urged in parallel. The front edge of the two isolation plates  202  are provided with two screw holes (not shown) for the mounting of two screws  33  to the connection holes  124  so as to connect the top fastening plate  12  to the front edge of the isolation plate  202 , the top end face of the seat body  20  is positioned with an elongated positioning slot  201 . The bottom end of the positioning slot  201  is provided with a screw hole (not shown). The upper section of the seat body  20  is provided with a rod body  21  for fitting. The rod body  21  corresponding to one end of the seat body  20  is provided with a positioning body  211  for the positioning passage  201  to position through the positioning slot  201  using screw  34  to a locking hole (not shown). The top end of the rod body  21  is provided with a screw connection hole  212  for the mounting with a hook rod  22  or a support rod  23 , and allows the screw rod  221  to be inserted into the screw connection hole  212 .  
         [0023]    Referring to FIGS. 4, 6A and  6 B, there is shown an implementation of the coupling device in accordance with the present invention. As shown in FIG. 4, when the bottom fastening plate  11  is mounted onto a securing face such that the bottom fastening plate  11  is installed into horizontal, and the fastening block  111  of the bottom fastening plate  11  is in a vertical position. At this moment, the positioning of the coupling deice is completed. During installation, the seat body  20  together with support rod  23  and the hook body  22  are mounted to the rod body  21  of the sanitary fitting and a screw  34  secures the rod body  21  onto the seat body  20 . The positioning side  123  of the top fastening plate  12  is engaged with the inner edge of the isolation plate  202  of the seat body  20  and a screw  33  is used to fasten the top fastening plate  12  onto the top edge of the isolation plate  202 .  
         [0024]    As shown in FIG. 5, the seat body  20  is held with one hand, the fastening block  111  is inserted into the recessed passage  125  of the top fastening plate  12  such that the protruded edge  121  of the top fastening plate  12  and the fastening passage  122  are aligned and positioned with the bottom protruded edge  113  of the bottom fastening plate  11  and the fastening side  114 . The seat body  20  is vertically urged so that the fastening slot  112  is urged with the recessed passage  125  of the top fastening plate  12 . At the same time, the top protruded edge  121  of the fastening passage  122  and the bottom-protruded edge  113  of the fastening side  114  are in engagement.  
         [0025]    It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.  
         [0026]    While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.