Patent Publication Number: US-2023139198-A1

Title: Control Structure of Door Lock

Description:
BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The present invention relates to a control structure of a door lock by which the motor and the guide gear actuate the rotatable sheet, the slide cylinder, and the tongue extend out of or retract into the open segment of the body so as to unlock or lock the door lock easily. 
     Description of the Prior Art 
     A conventional door lock is connected by several components, so it is operated badly after a period of using time. Furthermore, the conventional deadbolt is deformed easily after being hit. 
     The present invention has arisen to mitigate and/or obviate the afore-described disadvantages. 
     SUMMARY OF THE INVENTION 
     The primary object of the present invention is to provide a control structure of a door lock by which the motor and the guide gear actuate the rotatable sheet, the slide cylinder, and the tongue extend out of or retract into the open segment of the body so as to unlock or lock the door lock easily. 
     Further object of the present invention is to provide a control structure of a door lock which contains the first casing and the second casing one-piece formed to reinforce the control structure of the lock door greatly. 
     Another object of the present invention is to provide a control structure of a door lock which contains the tongue pushed by the locating bolt safely. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a perspective view showing the assembly of a control structure of a door lock according to a preferred embodiment of the present invention. 
         FIG.  2    is a perspective view showing the exploded components of the control structure of the door lock according to the preferred embodiment of the present invention. 
         FIG.  3    is another perspective view showing the exploded components of the control structure of the door lock according to the preferred embodiment of the present invention. 
         FIG.  4    is a perspective view showing the operation of the control structure of the door lock according to the preferred embodiment of the present invention. 
         FIG.  5    is another perspective view showing the operation of the control structure of the door lock according to the preferred embodiment of the present invention. 
         FIG.  6    is also another perspective view showing the operation of the control structure of the door lock according to the preferred embodiment of the present invention. 
         FIG.  7    is still another perspective view showing the operation of the control structure of the door lock according to the preferred embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, a preferred embodiment in accordance with the present invention. 
     With reference to  FIGS.  1 - 7   , a control structure of a door lock according to a preferred embodiment of the present invention comprises: 
     a body  10  including a first casing  11 A and a second casing  11 B which are one-piece formed, an open segment  16  formed on a first end of the body  10 , a close segment  15  formed on a second end of the body  10 , an operation space  17  defined in the body  10 , a holder  14  formed in the body  10  opposite to the operation space  17 , and a groove  13  defined in the body  10  facing the close segment  15 ; wherein the first casing  11 A has a first connection portion  12 A, and the second casing  11 B has a second connection portion  12 B corresponding to the first connection portion  12 A of the first casing  11 A, wherein the first connection portion  12 A and the second connection portion  12 B are connected by a screw bolt S so as to form the body  10 ; 
     a partition  20  received in the body  10  and including a first slot  21  defined on a first end of the partition  20  and corresponding to the groove  13  of the body  10 , multiple actuation portions  22  extending around the first slot  21 , two hooks  23  extending from a side of a second end of the partition  20  and corresponding to the open segment  16  of the body  10 , two seats  24  received in the first slot  21  and the groove  13  of the body  10 , two connection orifices  26  defined on the two seats  24 , multiple extensions  25  extending from the two seats  24  and corresponding to the multiple actuation portions  22  of the partition  20 ; 
     a motor  30  accommodated in the holder  14  of the body  10  and including a guide gear  31  corresponding to a center of the open segment  16  of the body  10 ; 
     a slide cylinder  40  received in the body  10  and including an accommodation chamber  41  corresponding to the open segment  16  of the body  10 , a receiving trench  43  defined beside the accommodation chamber  41  and configured to receive the partition  20 , at least one second slot  44  extending on an outer wall of the slide cylinder  40 , and a post  42  extending from a predetermined position of the outer wall of the slide cylinder  40  opposite to the at least one second slot  44 ; 
     a rotatable sheet  45  accommodated in the slide cylinder  40  and corresponding to the guide gear  31  of the motor  30 , the rotatable sheet  45  including a curved face  47  defined on an inner wall of the rotatable sheet  45 , a chute  46  defined on the curved face  47  and configured to receive the post  42  of the slide cylinder  40 , wherein the chute  46  has a first positioning segment  461  defined on a first end thereof, and the chute  46  has a second positioning segment  462  formed on a second end thereof, the rotatable sheet  45  further including a drive section  48  formed around the inner wall thereof, and a toothed portion  49  formed on the drive section  48  and meshing with the guide gear  31  of the motor  30  so that when the guide gear  31  is driven by the motor  30 , the guide gear  31  actuates the toothed portion  49  to move, and the rotatable sheet  45  actuates the post  42  of the slide cylinder  40  to move forward or backward via the chute  46 ; 
     a tongue  50  received in the accommodation chamber  41  of the slide cylinder  40 , and the tongue  50  including a lock segment  52  formed on a first end of the tongue  50 , a notch  55  defined on a side wall of the tongue  50 , an engagement segment  54  formed in the notch  55  opposite to the accommodation chamber  41 , two fixing portions  53  located above and below the accommodation chamber  41  and corresponding to the two hooks  23  of the partition  20 , and two retainers  51  extending beside the notch  55  and adjacent to a second end of the tongue  50  so as to engage with the at least one slot  44  of the slide cylinder  40 ; 
     a locating bolt  60  accommodated in the notch  55  of the tongue  50 , the locating bolt  60  including a defining fringe  62  formed on a side of the locating bolt  60  and engaged with the engagement segment  54  of the tongue  50 , and a connection protrusion  61  extending from an end of the locating bolt  60 ; 
     a first resilient element  70 , wherein a first end of the first resilient element  70  is fixed in the accommodation chamber  41  of the slide cylinder  40 , and a second end of the first resilient element  70  is mounted on the tongue  50 ; and 
     a second resilient element  80 , wherein a first end of the second resilient element  80  is disposed in the accommodation chamber  41  of the slide cylinder  40 , and a second end of the second resilient element  80  is secured on the connection protrusion  61  of the locating bolt  60 . 
     Preferably, the body  10  further includes a coupling plate  90  facing the open segment  16 , and the coupling plate  90  has a first aperture  91  defined on a center thereof, a second aperture  92  formed on a side of the coupling plate  90 , and two third apertures  93  formed proximate to a top and a bottom of the coupling plate  90 . 
     Referring to  FIGS.  4  and  6   , when the tongue  50  extends in an electric driving mode, the motor  30  rotatably drives the guide gear  31  so that the guide gear  31  meshes with the toothed portion  49  to move rotatably, and after the rotatable sheet  45  actuates the post  42  of the slide cylinder  40  to move forward or backward via the chute  46 , the post  42  moves into the first positioning segment  461  of the chute  46 , and the slide cylinder  40  actuates the tongue  50  to extend out of the open segment  16  of the body  10 . When the slide cylinder  40  moves forward, the slide cylinder  40  pushes the tongue  50  to extend out of the open segment  16  of the body  10  by way of the first resilient element  70 . 
     As shown in  FIGS.  5  and  7   , the tongue  50  is driven to retract inward in the electric driving mode, wherein the motor  30  rotates counterclockwise to drive the guide gear  31  to rotate so that the guide gear  31  actuates the toothed portion  49  to rotate counterclockwise via the motor  30 , and the rotatable sheet  45  moves counterclockwise to drive the post  42  and the slide cylinder  40  to move backward via the chute  46 , then the post  42  moves into the second positioning segment  462  of the chute  46 , and the slide cylinder  40  drives the tongue  50  to retract into the open segment  16  of the body  10 . 
     Accordingly, the motor  30  and the guide gear  31  actuate the rotatable sheet  45 , the slide cylinder  40 , and the tongue  50  to extend out of or retract into the open segment  16  of the body  10  so as to unlock or lock the door lock easily. Preferably, the first casing  11 A and the second casing  11 B of the body  10  are one-piece formed to reinforce the control structure of the lock door, and the tongue  50  is pushed by the locating bolt  60  safely. 
     While various embodiments in accordance with the present invention have been shown and described, it is clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.