Abstract:
A tool for mounting a coaxial cable on a first connector is disclosed, wherein the coaxial cable extending along a first axial is adapted to pass through a first outer sleeve of the first connector, wherein the tool comprises a plunger; and a mold comprising an upper mold hinge and a lower mold hinge, wherein the upper mold hinge pivotally connected to the lower mold hinge so as to rotate the upper mold hinge relative to the lower mold hinge with respect to a rotation axis, and a second axial direction of the rotation axis is parallel to the first axial direction, wherein the plunger is adapted to push the first connector so as to force the upper mold hinge and the lower mold hinge to press the first outer sleeve so as to deform the first outer sleeve radially.

Description:
RELATED APPLICATION 
       [0001]    This patent application claims priority of Taiwan Patent Application No. 105210312, filed on Jul. 11, 2016, the entirety of which is incorporated herein by reference. 
       BACKGROUND OF THE DISCLOSURE 
     Field of the Disclosure 
       [0002]    The present invention relates to a tool, and more particularly to a tool for mounting a coaxial cable to a connector. 
       Brief Description of the Related Art 
       [0003]    When using a conventional crimping tool to crimp different types of connector (e.g. F-type coaxial terminals, BNC-type coaxial terminals) or connectors of a same type but with different specifications (e.g. different lengths), various crimping tools are needed, which cause some difficulties when operating the crimping tools. Furthermore, the size of the conventional crimping tool is too large for handling and carrying. 
         [0004]    Accordingly, it is desired to provide a coaxial cable crimping tool that has the characteristics of versatility, small size and low cost to resolve the above-mentioned issues. 
       SUMMARY OF THE DISCLOSURE 
       [0005]    In one embodiment of the present invention, a tool for mounting a coaxial cable on a first connector is provided, the coaxial cable is suitable to pass through a first outer sleeve of the first connector along a first axial direction, said tool comprising a plunger and a mold comprising an upper mold hinge and a lower mold hinge, wherein the upper mold hinge is pivotally connected to the lower mold hinge so as to rotate the upper mold hinge relative to the lower mold portion with respect to a rotation axis, wherein a second axial direction of the rotation axis is parallel to the first axial direction, wherein the plunger is adapted to push the first connector so as to allow the upper mold hinge and the lower mold hinge to press the first outer sleeve to deform the first outer sleeve radially. 
         [0006]    In one embodiment of the present invention, a tool for mounting a coaxial cable on a first connector is provided, the coaxial cable being suitable to pass through a first outer sleeve of the first connector along an axial direction, said tool comprising a base and a mold on the base, the mold being adapted to move relative to the base along the axial direction to press the first outer sleeve to deform the first outer sleeve. 
         [0007]    In one embodiment of the present invention, a tool for mounting a coaxial cable on a first connector is provided, the coaxial cable being suitable to pass through a first outer sleeve of the first connector along an axial direction, said tool comprising a base and a mold on the base, the mold being located at an end of a moving path, wherein the mold is adapted to move toward the mold base along the axial direction so as to press the outer sleeve to deform the outer sleeve. 
         [0008]    In one embodiment of the present invention, a tool for mounting a coaxial cable to a first connector or a second connector is provided, the coaxial cable being suitable to pass through a first outer sleeve of the first connector, wherein the format of the first connector is different from that of the second connector, said tool comprising: a base; a mold on the base; a first pressing element module, suitable to be disposed on the base and adapted to move relative to the base in a direction towards the mold so as to press the first outer sleeve to deform the first outer sleeve; and a second pressing element module, suitable to be disposed on the base and adapted to move relative to the base in a direction towards the mold so as to press the second outer sleeve to deform the second outer sleeve, wherein the format of the first pressing element module is different from that of the second pressing element module for matching with different formats of the first connector and the second connector, respectively. 
         [0009]    In one embodiment of the present invention, a tool is provided for mounting a coaxial cable to a connector, the coaxial cable being suitable to pass through a first outer sleeve of the connector, said tool comprising a base and a mold disposed on a rod of the base, the mold being adapted to move relative to the rod along an extension direction of the rod to press the outer sleeve so as to deform the outer sleeve. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0010]      FIG. 1 a    is a schematic 3D view of a tool according to a first implementation of a first embodiment of the present invention; 
           [0011]      FIG. 1 b    is a schematic 3D view of the tool according to a second implementation of the first embodiment of the present invention; 
           [0012]      FIG. 2  is an exploded 3D view of the tool according to the first embodiment of the present invention; 
           [0013]      FIG. 3  is a schematic exploded view of another aspect of the tool of the first embodiment of the present invention; 
           [0014]      FIG. 4  is a schematic 3D view of another aspect of the tool of the first embodiment of the present invention; 
           [0015]      FIG. 5  is a schematic cross-sectional view of the tool of the first embodiment of the present invention; 
           [0016]      FIG. 6 a    is a schematic cross-sectional view showing the tool of the first embodiment before a coaxial cable connector is operated; 
           [0017]      FIG. 6 b    is a schematic cross-sectional view showing the tool of the first embodiment after the coaxial cable connector is operated; 
           [0018]      FIGS. 7 a  and 7 b    are schematic views showing a comparison between operations illustrated in  FIG. 6 a    and  FIG. 6   b;    
           [0019]      FIG. 8 a    is a schematic 3D view of a tool according to a first implementation of a second embodiment of the present invention; 
           [0020]      FIG. 8 b    is a schematic 3D view of a tool according to a second implementation of the second embodiment of the present invention; 
           [0021]      FIG. 8 c    is a schematic exploded view of the tool of the second embodiment of the present invention; 
           [0022]      FIG. 8 d    is a schematic exploded view of the tool of the second embodiment of the present invention; 
           [0023]      FIG. 9 a    is a schematic cross-sectional view showing the tool of the second embodiment after the coaxial cable connector is operated; 
           [0024]      FIG. 9 b    is a schematic 3D view of the tool of the second embodiment when mounting a coaxial cable to a connector; and 
           [0025]      FIG. 9 c    is a schematic cross-sectional view showing the tool of the second embodiment after the coaxial cable connector is operated. 
           [0026]      FIGS. 10 a , 10 b  and 10 c    shows a tool according to a third embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0027]    Aspects of the disclosure may be more fully understood from the following description when read together with the accompanying drawings, which are to be regarded as illustrative in nature, and not as limiting. The drawings are not necessarily to scale, emphasis instead being placed on the principles of the disclosure. 
         [0028]    Illustrative embodiments are now described. Other embodiments may be used in addition or instead. Details that may be apparent or unnecessary may be omitted to save space or for a more effective presentation. Conversely, some embodiments may be practiced without all of the details that are disclosed. 
         [0029]    The tool of the present invention further uses a mold base to abut and press the mold so as to deform the outer sleeve by way of disposing the outer sleeve of the coaxial cable connector in the mold, wherein the deformed outer sleeve in turn presses the plastic jacket of the coaxial cable to fixedly engage the outer sleeve with the coaxial cable. 
       First Embodiment 
       [0030]    As shown in  FIGS. 1 a , 1 b   , and  2  to  5 , the coaxial cable tool includes a base  10 , a lever arm  12 , a floating link  14 , a plunger  16 , a replaceable element  18 , a chuck  20 , a connecting block  22 , a mold  24 , a rod  26 , a mold base  28 , a spring  30 , a spring  32 , a fixing ring  34  and a chuck  36 . 
         [0031]    The base  10  includes a recess  102 , a perforation  104 , a recess  106 , a recess  108 , a recess  110  and an blocking portion  112 , wherein the recess  102  interconnects with the perforation  104 , the recess  106  interconnects with the recess  108 , the two side walls  114  of the recess  102  have a perforation  102   a , respectively, and the base  10  also has three receptacles  116  disposed on the bottom surface and the side surface respectively. Additionally, there are a recess groove  117  and two bumps  1122  on the blocking portion  112 , wherein there is a groove  1124  between the two bumps  1122 . 
         [0032]    The lever arm  12  has a curved surface  120  and a surface  121 , and the curved surface  120  provides a grip for a user to operate the tool. There is a first connecting portion  122  at one end of the lever arm  12 , and the first connecting portion  122  has a recess  124  thereon for accommodating and connecting the floating link  14 . The recesses  124  has a perforation  124   a  on the two side walls  126 , respectively and the first connecting portion  122  also has a perforation  122   a . The two ends of the floating link  14  have a perforation  14   a  and a perforation  14   b , respectively, to insert the floating link  14  into the recess  124  so that the perforation  14   a  and the two perforations  124   a  are aligned with each other, wherein a pivotal latch (not shown) is inserted inside the through  14   a  and the two perforations  124   a . The floating link  14  is pivotally connected to the first connecting portion  122  of the lever arm  12 . Furthermore, the perforation  14   b  at the other end of the floating link  14  is pivotally connected to the plunger  16  which has a second connecting portion  162  and a screw hole  164 , respectively, wherein the second connecting portion  162  has a recess  166  which has a perforation  168   a  on the two side walls  168 , respectively to insert the floating link  14  into the recess  166 . The plunger  16  is inserted into the perforation  104  of the base  10  via the recess  102  while the first connecting portion  122  of the lever arm  12  and the floating link  14  are simultaneously inserted into the recess  102  so that the perforation  122   a  of the first connecting portion  122  are aligned with the two perforations  102   a  on the side walls  114  with a pivotal latch  118  (not shown) inserted inside the through  14   a  and the two perforations  124   a . The first connecting portion  122  of the lever arm  12  is pivotally connected to the side walls  114  of the base  10 . 
         [0033]    The two ends of the chuck  20  have a recess  202  and a first stud  204 , respectively, and there is a blocking portion  206  between the recess  202  and the first stud  204  while the two ends of the displaceable element  18  have a screw hole  182  and a second stud  184 , respectively, and there is a gripping portion  186  between the screw hole  182  and the second stud  184  for easy grip for a user to operate. The shape of the gripping portion  186  is hexagonal, quadrangular or polygonal with a rough surface, but it is not limited to. The first stud  204  is then disposed within the screw hole  182  so that the chuck  20  is interconnected with the replaceable element  18 , and the second stud  184  of the replaceable element  18  is disposed within the screw hole  164  of the plunger  16  from the other end of the perforation so that the plunger  16 , the replaceable element  18  and the chuck  20  are interconnected to each other. 
         [0034]    The rod  26  has a first connecting end  262  and a second connecting end  264  with a blocking portion  266  between the first connecting end  262  and the second connecting end  264 . The mold base  28  has a recess  282 , a recess  284 , a recess  285  and an engaging portion  286 , wherein the recess  284  is below the recess  282  while the recess  285  is located on the side wall of the mold base  28 . A perforation  286   a  is formed inside the engaging portion  286  and the recess  284 . The connecting block  22  has a perforation  22   a  and two side walls  222 , and a recess  224  is formed between the two side walls  222 . 
         [0035]    The mold  24  is constituted by an upper mold hinge  242  and a lower mold hinge  244 . A stepping portion  245  is provided on the inner surface of the upper mold hinge  242  and the lower mold hinge  244 . One end of the upper mold hinge  242  has a third connecting portion  246 , and the third connecting portion  246  has two bumps  2462 . The two bumps  2462  have a corresponding perforations  2462   a  thereon, respectively and there is a magazine  2464  between two bumps  2462 , and one end of the lower mold hinge  244  has a fourth connecting portion  248  having a perforation  248   a  and a fifth connecting portion  250  located below the lower mold hinge  244  and having a perforation  250   a , wherein the fourth connection portion  248  of the lower mold hinge  244  is disposed in the magazine  2464  of the upper mold hinge  242  such that perforation  248   a  of the fourth connecting portion  248  and the perforations  2462   a  of the two bumps  2462  are aligned with each other with the pivot latch (not shown) inserted inside the perforation  248   a  and the two perforations  2462   a . One end of the upper mold portion  242  is pivotally connected to one end of the lower mold portion  244  so that the mold  24  can be opened or closed. When the mold  24  is closed, one arc face of the upper mold hinge  242  is adapted to face the arc face of the lower mold portion  244  so as to form a conical perforation  252  for passing through the coaxial cable connector. 
         [0036]    The second connecting end  264  of the rod  26  is inserted into the perforation  248   a  of the mold  24  so that the fifth connecting portion  250  of the mold  24  abuts against the blocking portion  266 . Further, the second connecting end  264  is inserted into a perforation  30   a  of the springs  30  and a perforation  32   a  of the spring  32 . The diameter of the perforation  32   a  is greater than outer diameter of the spring  30 , and the wire diameter and the elastic force of the spring  32  are greater than the spring  30 . However, the spring  32  and the spring  30  are both elastic members whose elasticity is related to the wire diameter of the spring, for example, the wire diameter of the spring  30  is between 0.1 mm (mm) and 0.3 mm, between 0.15 mm and 0.5 mm, or between 0.3 mm and 1.5 mm, and the wire diameter of the spring  32  is between 0.5 mm (mm) and 1.5 mm, between 0.8 mm and 2 mm, or between 1 mm and 2.5 mm, so that the spring  32  can be disposed in the second connection end  264  and the spring  30  at the same time, wherein one end of the spring  30  can abut against the fifth connecting portion  250  of the mold  24 . The second connecting end  264  of the rod  26  is then disposed inside the perforation  286   a  of the mold base  28 . The recess  284  can accommodate the spring  32  and the spring  30  with the other end of the spring  30  abutting against the inner wall of the recess  284 . The first connecting end  262  of the rod  26  is inserted into the perforation  22   a  of the connecting block  22  via the recess  224 . 
         [0037]    The connecting block  22 , the mold  24 , the spring  30 , the spring  32  and the mold base  28 , which are connected via the rod  26 , are then disposed in the recess  106 , recess  108  and recess  110  of the base  10 , wherein the engaging portion  286  of the mold base  28  is disposed in the recess  110 , and the second connecting end  264  of the rod  26  is engaged in the recess groove  117  of the blocking portion  112 . The recess  282  of the mold base  28  corresponds to the groove  1124  of the blocking portion  112 , the connection block  22 , and the fifth connecting portion  250  of the mold  24  are disposed in the recess  108 , and the first connecting end  262  of the rod  26  is disposed within the recess  106  through the perforation  22   a  of the connection block  22 . The fifth connecting portion  250  of the mold  24  is also located in the recess  224  of the connecting block  22  with the fifth connecting portion  250  abutting against the blocking portion  266  by the elastic force of the spring  30 , which in turn controls the movement of the mold  24  through the spring  30 . The two ends of the fixing ring  34  are pivotally connected to the recess  285  of the mold base  28 , and the fixing ring  34  is rotatable relative to the base  10 . 
         [0038]    The material of the base  10 , the lever arm  12 , the floating link  14 , the plunger  16 , the replaceable element  18 , the chuck  20 , the connecting block  22 , the mold  24 , the rod  26 , the mold base  28 , the spring  32 , the fixing ring  34  and the chuck  36  mentioned above is, for example, copper, iron, silver, nickel, tin, gold, copper alloy, copper-tin alloy, copper-nickel alloy, brass, brass, phosphor bronze, beryllium copper, aluminum, aluminum alloy, zinc alloy, steel alloy or one of other high strength plastic polymers, or a combination thereof. In addition, the top chuck  36  and the chuck  20  can be respectively used for different formats of coaxial cable connector, such as F-type coaxial cable connector, BNC type coaxial cable connector, RCA coaxial cable connector, XLR coaxial cable connector, DFP coaxial cable Connector, a DVI type coaxial cable connector, a SCART type coaxial cable connector, or an RF type coaxial cable connector, etc. The user can replace the chuck  36  with the chuck  20  as desired, wherein the formats of the chuck  36  and the chuck  20  are different in appearance, outer diameter or length. Furthermore, the other two receptacles  116  disposed on the base  10  may be provided with different formats of replaceable elements  18  or additional formats of chucks. For example, the replaceable element  18  can have a different external appearance, a different outer diameter, or a different length. Thus, for the purpose of the present invention, the chuck  20  and the replaceable element  18  are a replaceable pressing element module which is changeable for matching with different shapes of the connector. 
         [0039]    As shown in  FIGS. 6 a , 6 b , 7 a  and 7 b   , a coaxial cable  40  is mounted to a connector  38 . The coaxial cable connector  38 , the coaxial cable  40 , the plunger  16  and the replaceable element  18  are coaxially arranged, wherein the chuck  20  is located between the plunger  16  and the coaxial cable connector  38 . The connector  38  comprises an inner sleeve  382 , an outer sleeve  384  and a nut  386 , wherein the outer sleeve  384  is coaxially disposed outside the inner sleeve  382 , the nut  386  is radially fitted to the inner sleeve  382 , the rear-extension portion of the inner sleeve  382  and the rear-extension portion of the outer sleeve  384  have a gap  387  therebetween, wherein the rear-extension portion of the sleeve  384  has a diameter d 1 . 
         [0040]    When the coaxial cable  40  is mounted to the connector  38 , a braided layer  7  and a plastic jacket  9  of the coaxial cable  40  are squeezed into the gap  387  between the rear-extension portion of the inner sleeve  382  and the rear-extension portion of the outer sleeve  384 . At this time, a portion of the braided layer  7  will be turned inside out to cover the outer surface of the plastic jacket  9 . A metal wire  1 , an insulating layer  3  and a thin metal layer  5  of the coaxial cables  40  are inserted into the front end of the inner sleeve  382  from the rear end of the inner sleeve  382 , with the metal wire  1  extends into the space formed by the nut  386 . The upper mold hinge  242  of the mold  24  is opened from the lower mold hinge  244 , and the coaxial cable  40  mounted to the connector  38  is disposed on the groove  1124  of the blocking portion  112 , the recess  284  of the mold base  28  and the lower mold hinge  244  of the mold  24 , wherein the nut  386  of the coaxial cable connector  38  is radially fitted to the chuck  20 . At this time, the metal wire  1  of the coaxial cable  40  can be disposed inside in the recess  202  of the chuck  20 . The inner sleeve  382  located inside the nut  386  can abut against the surface of the chuck  20 , and then close the upper mold hinge so that the upper mold hinge  242  and the lower mold hinge  244  surround the coaxial cable  40 ; that is, the coaxial cable  40  is located in the conical perforation  252  of the mold  24 . The lever arm  12  is pressed in a direction towards the base  10  while the floating link  14 , the plunger  16 , the displaceable element  18  and the chuck  20  are pushed by the first connecting portion  122  of the lever arm  12  to move toward the blocking portion  112  of the base  10 , wherein the chuck  20  pushes the connector  38  and the coaxial cable connector  38  to move toward the blocking portion  112  of the base  10 , that is, moving toward an axial direction of the coaxial cable connector  38 , wherein the chuck  20  pushes the coaxial cable connector  38  to abut against the inner wall of the conical perforation  252  of the mold  24  during the movement. When a user applies a force, the mold  24  will move in the direction of towards the blocking portion  112 , and the upper mold hinge  424  and the lower mold hinge  422  will also progressively abut against the inner wall of the recess  282  of the mold holder  28 , wherein the outer flange of an outer sleeve of the coaxial cable connector  38  will abut against the upper mold hinge  242  and the stepping portion  245  of the lower mold hinge  244 . At this time, the spring  30  located in the recess  108  is pressed by the movement of the mold  24 . When the user&#39;s hand holds the curved surface  121  of the lever arm  12  and presses against the base  10  to force the surface  121  of the lever arm  12  to contact the surface of the base  10 , with the lever arm  12  being in parallel with the base  10 , the mold  24  is pressed so as to be tightly abutted against the recess  282  of the mold base  28 . At this time, the mold  24  presses the spring  32  as well as the spring  30  while the connector  38  is squeezed by the chuck  20 , thereby causing the rear-extension portion of the sleeve  384  of the connector  38  to be radially pressed by the mold  24  so as to be deformed into a conic shape. The upper mold hinge  242  and the stepping portion  245  of the lower mold hinge  244  can prevent the connector  38  from being stuck in the mold  24  and being removed uneasily when the user applies an excessive force, in which the diameter d 1  of the rear-extension portion  38  of the outer sleeve  384  adjacent to the coaxial cable  40  is reduced to a diameter d 2 , and the diameter d 1  of the rear-extension  38  of the outer sleeve  384  adjacent to the nut  386  remains unchanged. The gap  387  between the rear-extension portion of the inner sleeve  382  and the rear-extension portion of the outer sleeve  384  becomes small. The rear rear-extension of the sleeve  384  is deformed while the braided layer  7  and the plastic jacket  9  of the coaxial cable  40  are pressed so as to allow the coaxial cable  40  be tightly engaged with the coaxial cable connector  38  to avoid falling off easily. After that, the user stops applying force to the lever arm  12  and releases the lever arm  12  while the elastic force of the spring  30  and the spring  32  move the mold  24  towards the lever arm  12  so as to detach the mold  24  from the recess  282  of the mold base  28 . The mold  24  pushes the connector  38 , the chuck  20 , the replaceable element  18  and the plunger  16  to move towards the lever arm  12  until the fifth connecting portion  250  of the mold  24  abuts against the blocking portion  266  of the rod  26 . At this time, the lever arm  12  is not restored to the state before it is pressed. The upper mold hinge  242  of the mold  24  is then opened from the lower mold hinge  244 , and the connector  38  and the coaxial cable  40  are taken out. The reason to dispose the spring  32  in the recess  106  of the base  10  is that the elastic force of the spring  32  is greater than that of the spring  30 , by doing so, the mold  24  can be prevented from being stuck in the recess  282  of the mold holder  28  when the user applies an excessive force. 
         [0041]    Furthermore, the fixing ring  34  of the tool of the present invention is designed to greatly reduce the size thereof so that the user can easily carry it. As shown in  FIG. 1 b   , when the fixing ring  34  presses the lever arm  12  downwardly to allow the lever arm  12  to contact the surface  121 , the fixing ring  34  is rotated to be on the curved surface  121  of the lever arm  12  so as to fix the lever arm  12  to reduce the size of the tool. In addition, the design of the plurality of receptacles  116  on the base  10  also allows the user to use different formats of the replaceable element  18  and the chuck  20 , the formats can be different in appearance, outer diameter or length. This tool is capable of being operated to connect connectors with different specifications or formats. 
       Second Embodiment 
       [0042]      FIGS. 8 a  to 8 d    shows a tool in a second embodiment in accordance with the present invention, the tool of the second embodiment differs from that of the first embodiment in that the mold  24  of the tool of the second embodiment replaces the mold  24  and the mold holder  28  of the first embodiment, the securing pin  44  of the second embodiment replaces the fixing ring  34  of the first embodiment, and the replaceable element  46  and the chuck  48  of the second embodiment replace the replaceable element  18  and the chuck  20  of the first embodiment, respectively. For elements of the second embodiment having the same reference numerals as the first embodiment, the above description of the first embodiment can be used for describing said elements in the second embodiment. The coaxial cable tool of the second embodiment includes a base  10 , a lever arm  12 , a floating  14 , and a plunger  16 , a replaceable element  46 , a chuck  48 , a mold  42 , a chuck  36  and a spring  50 . 
         [0043]    Each element of the present embodiment will be described below. As described above, the base  10  includes a recess  102 , a perforation  104 , a recess  110 , and a blocking portion  112 , wherein the recess  102  communicates with the perforation  104 , the recess  110  has a perforation  110   a  inside and a perforation  102   a  and the two side walls  114  of the recess  102  have a perforation  104   a  thereon, respectively. The blocking portion  112  has two bumps  1122  thereon, and the bumps  1122  have a groove  1124  therebetween. 
         [0044]    The first connecting portion  122  of the lever arm  12  also has a recess  124  for accommodating and connecting the floating link  14 , and the two side walls  126  of the recess  124  respectively have a perforation  124   a  thereon. The first connecting portion also has a perforation  122   a  and a perforation  126   a  so as to place the floating link  14  into the recess  124 , so that the perforation  14   a  and the two perforations  124   a  are aligned with each other with a pivotal latch is inserted between the perforation  14   a  and the two perforations  124   a . The floating link  14  is pivotally connected to the first connecting portion  122  of the lever arm  12 , and the perforation  14   b  at the other end of the floating link  14  is pivotally connected to the second connecting portion  162  of the plunger  16 . The floating link  14  is inserted into the recess  166  so that the perforation  14   b  and the two perforations  168   a  are aligned with each other and a pivotal latch (not shown) being inserted into the perforation  14   b  and the two perforations  168   a . The floating link  14  is pivotally connected to the second connecting portion  162 . The spring  50  is then radially fitted on the screw hole  164  of the plunger  16  and the spring  50  abuts against the second connecting portion  162 . The plunger  16  and the recess  102  are inserted into the perforation  104  of the base  10  with the first connecting portion  122  and the floating link  14  of the lever arm  12  disposed into the recess  102  at the same time, so that the first connecting portion  122  and the perforation  122   a  are aligned with the two perforations  102   a  on the side wall  114  with a pivotal latch inserted between the perforation  122   a  and the two perforations  102   a . The first connecting portion  122  of the lever arm  12  is pivotally connected to the two side walls  114  of the base  10  while at the same time the spring  50  located on the plunger  16  is positioned between the second connecting portion  162  and the wall having the perforation  104 , Wherein the spring  50  can abut against the wall having the perforation  104  so that the spring  50  will not slide outside of the perforation  104  when the plunger  16  passes through the perforation  104 , wherein the lever arm  12 , the floating link  14  and the plunger  16  exhibit an interlocking relationship in the recess  102 . 
         [0045]    The two ends of the chuck  48  have a recess  482 , a blocking portion  484 , and a rod  486 , respectively, and the blocking portion  206  is located between the recess  482  and the rod  486 . The external shape of the blocking portion  484  is hexagonal, quadrangular or polygonal with a rough surface for easy grip by a user. Additionally, a replaceable element  46  is radially fitted on the rod  486 , and the replaceable element  46  can be a nut. The rod portion  48  then passes through the perforation  104  so as to be disposed in the screw hole  164  of the plunger  16  to interconnect the chuck  48 , the replaceable element  46  and the plunger  16 . 
         [0046]    The mold  42  comprises an upper mold hinge  424 , a lower mold hinge  422 , a rod  426 , a spring  428 , and a latch pin  430 . One end of the upper mold hinge  424  has a seventh connecting portion  4242 , and the seventh connecting portion  4242  has a perforation (not shown). The other end of the upper mold hinge  424  has a groove (not shown) formed by two side walls  4244 , wherein a side wall  4244  has a perforation  4246  thereon, and another side  4244  wall has a recess  4248  thereon. Furthermore, the upper mold hinge  424  has a recess  4249  between the side wall  4246  and the seventh connecting portion  4242 . One end of the lower mold hinge  422  has a sixth connecting portion  4222  which has a perforation (not shown) therein, and the other end of the lower mold hinge  422  has a recess  4227  formed by the two side walls  4224 , and a side wall  4224  has a perforation  4226  thereon. The latch  430  passes through the perforation  4226  so as to be disposed within the groove  4227 . Furthermore, the lower surface of the lower mold hinge  422  has a protruding portion  4229  disposed in the perforation  110   a  of the base  10 . The lower mold hinge  422  is locked and fixed to the recess  102  through a fixing screw  119  passing through the perforation  110   a  from the bottom of the base  10 . Additionally, a recess  4228  is formed between the side wall  4224  and the sixth connecting portion  4222  of the lower mold hinge  422 . The inner wall of the groove  4249  of the upper mold hinge  424  and the inner wall of the groove  4228  of the lower mold hinge  422  are provided with a corresponding stepping portion  4223 . One end of the rod  426  includes a clamping hook  4264  and the other end of the rod  426  has a rough surface or a surface having a plurality of notches. Further, a perforation  4262  on the rod  426  is located between the clamping hook  4264  and the end with the rough surface. 
         [0047]    The seventh connecting portion  4242  of the upper mold hinge  424  is pivotally connected to the sixth connecting portion  4222  of the lower mold portion  422 , and then a pivotal latch (not shown) is inserted through the perforation  4246  of the upper mold hinge  424  and the perforation  4262  of the rod  426 . The rod  426  is pivotally connected to the upper mold hinge  424 . One end of the spring  428  is disposed in the recess  4248  of the upper mold hinge  424  with the other end of the spring  428  abutting against the surface of the rod. The clamping hook  4264  of the rod  426  is pressed toward the seventh connection portion  4242  of the upper mold hinge  424  by using the elastic force of the spring  428  while the pivotal latch being used as a pivot is inserted through the perforation  4262  of the rod  426 . When the upper mold hinge  424  and the lower mold hinge  422  are closed, the recess  4249  of the upper mold hinge  424  and the recess  4228  of the lower mold hinge  422  form a conic perforation  421 , and the clamping hook  4264  is hooked on the latch  430  of the groove  4227  so that the upper mold hinge  424  and the lower mold hinge  422  can be fixedly engaged with each other. When the upper mold hinge  424  is open from the lower mold portion  422 , the user applies the finger to the rough surface of the rod  426  so that the clamping hook  4264  of the rod  426  moves in a direction away from the groove  4227  while the clamping hook  4264  is released from the latch  430 . The groove formed by the two side walls  4244  of the upper mold hinge  424  moves upwardly toward the lower mold hinge  422  so that the upper mold hinge  424  is opened from the lower mold hinge  422 . 
         [0048]    Additionally, when the one end of the lever arm  12  moves toward the base  10 , the other end of the lever arm  12  takes the pivotal latch  118  in the perforation  122   a  and the two perforation  102   a  as a pivot so as to make the lever arm  12  rotatable relative to the base  10 . When rotating, the first connecting portion  122  of the lever arm  12  simultaneously drives the floating link  14 , the plunger  16 , the displaceable element  46  and the chuck  48  to move towards the mold  42  while the plunger  16  radially fitted on the spring  50  abutting against the second connecting portion  162  until the spring  50  abuts against the side wall of the perforation  104 . As the lever arm  12  being pressed continues to move towards the base  10 , the spring  50  will be pressed by the second connecting portion  162  to reduce its length until the inner surface of the lever arm  12  abuts against the surface of the base  10 . The perforation  126   a  on the first connecting portion  122  of the lever arm  12  will be aligned with the perforation  104   a  of the base  10 . The user can insert the securing pin  44  into the perforation  104   a  and the perforation  126   a  with one end of the securing pin  44  locked with a nut  442  so as to fix the securing pin  44  on the base  10 , thereby causing the lever arm  12  fixed to the base  10  horizontally, making it convenient for the user to store the tool. 
         [0049]    When a user wants to use the tool, the nut  442  is unlocked and the securing pin  44  is removed. At this time, since the securing pin  44  on the first connecting portion  122  disappears, the spring  50  will not be pressed by the second connecting portion  162  and return to its original shape by the elastic force of the spring  50 , which will push the second connecting portion  162  of the plunger  16  and in turn moves the linking floating link  14  and the first connecting portion  122  with one end of the lever arm  12  moving in a direction away from the base  10 . 
         [0050]    The material of the replaceable element  46 , the chuck  48 , the mold  42 , the spring  50 , the spring  428 , and the latch  430  can be, for example, copper, iron, silver, nickel, tin, gold, copper alloy, copper-tin alloy, copper-nickel alloy, brass, brass-alloy, phosphor bronze, beryllium copper, aluminum, aluminum-alloy, zinc alloy, steel alloy or one of other high strength plastic polymers, or a combination thereof. In addition, the chuck  48  can be used for different formats of coaxial cable connectors, such as F-type coaxial cable connector, BNC type coaxial cable connector, RCA coaxial cable connector, XLR coaxial cable connector, DFP coaxial cable connector, DVI coaxial Cable connector, SCART type coaxial cable connector or RF type coaxial cable connector, etc. The user can replace the chuck  48  with different formats, and the two receptacles  116  on the base  10  can also be set in different form to accommodate different format of the replaceable element  46  or the chuck  48 , for example, a chuck  48  having a different outer diameter, a different outer diameter or a different length, etc. Thus, for the present embodiment, the chuck  48  is a replaceable pressing element module, which is changeable for matching with connectors in different formats. 
         [0051]    As shown in  FIGS. 9 a , 9 b , and 9 c   , the coaxial cable  40  is mounted on the connector  38 , and the upper mold hinge  424  of the mold  42  is open from the lower mold hinge  422 . The coaxial cable  40  mounted on the connector  38  is disposed on the groove  1124  of the blocking portion  112  and the lower mold hinge  422  with the nut  386  of the connector  38  radially fitted on the chuck  48 . The metal wire  1  of the coaxial cable  40  can be disposed within the recess  482  of the chuck  48 , and the inner sleeve  382  disposed inside the nut  386  can abut against the surface of the chuck  48 , and then, the upper mold hinge  424  is closed so as to allow the upper mold hinge  424  and the lower mold hinge  422  surround the coaxial cable  40 , in which the coaxial cable  40  is located in the conic perforation  421  of the mold  24  with the clamping hook  4264  being attached to the latch  430  of the lower mold hinge  422  so as to fix the upper mold hinge  422  and the lower mold hinge  422 . 
         [0052]    The lever arm  12  is pressed towards the base  10  while the first connecting portion  122  of the lever arm  12  pushes the floating link  14 , the plunger  16 , the spring  50 , the replaceable element  46 , and the chuck  48  to move toward blocking portion  112  of the base. During movement, the spring  50  abuts against the wall having the perforation  104  so as to be pressed. The chuck  48  also pushes the connector  38  and the coaxial cable  40  to move toward the blocking portion  112  or toward an axial direction of the connector  38 , wherein the chuck  48  will push the connector  38  to abut against the inner wall of the tapered perforation  421  of the mold  24  during the movement. When the surface of the lever arm  12  is in contact with the surface of the base  10 , the lever arm  12  will be in parallel with the base  10 . 
         [0053]    The rear-extension portion of the outer sleeve  384  of the connector  38  disposed in the conic perforation  421  is radially pressed by the mold  42  so as to be deformed into a conic shape as the connector  38  is squeezed by the chuck  48 . At this time, the outer flange of the outer sleeve of the connector  38  abuts against the stepping portion  4223  of the mold  24 . The stepping portion  4223  can block the connector  38  from being stuck in the mold  24  and being removed uneasily when the user applies the force overmuch, wherein the diameter d 1  of the rear-extension portion  38  of the outer sleeve  384  adjacent to the coaxial cable  40  is reduced to a diameter d 2 , and the diameter d 1  of the rear-extension  38  of the outer sleeve  384  adjacent to the nut  386  remains unchanged. The gap  387  between the rear-extension portion of the inner sleeve  382  and the rear-extension portion of the outer sleeve  384  becomes small. The rear rear-extension of the sleeve  384  is deformed while the braided layer  7  and the plastic jacket  9  of the coaxial cable  40  are pressed so that the coaxial cable  40  is tightly engaged with the coaxial cable connector  38  to avoid falling off easily. The user then stops forcing the lever arm  12  and release the lever arm  12 . At this time, the elastic force of the spring  50  pushes the second connecting portion  162  of the plunger  16  and also causes the linking floating link  14  and the first connecting portion  122  to move. One end of the lever arm  12  moves toward a direction away from the base  10 . Ultimately, the lever arm  12  is resorted to the state before it is pressed. 
         [0054]    After that, the fingers of a user applies a force on the rough surface of the rod  426  to move the recess groove  4264  of the rod  426  in a direction away from the groove  4227  with the recess groove  4264  being detached from the latch  430 . The groove formed by the two sidewalls  4244  of the upper mold hinge  424  moves upwardly toward the lower mold hinge  422 , which in turn open the upper mold hinge  424  from the lower mold hinge  422  to allow the user to take out the connector  38  and coaxial cable  40  being mounted on the connector  38 . 
       Third Embodiment 
       [0055]    As shown in  FIG. 10 a   , the tool of the third embodiment is similar to the first embodiment and the second embodiment, and only the structures and the actions that are different from that of the first and the second embodiments will be described below. The appearance of the tool of the embodiment is somewhat different from that of the first and second embodiments described above, particularly the base  10 . In the present embodiment, a region  105  may be disposed on the base  10  for the manufacturer to post the usage information of the tool. Additionally, the base  10  comprises a receiving slot  107  for accommodating the exposed nut  442 . 
         [0056]    As shown in  FIGS. 10 b  and 10 c   , the replaceable element  46  of the second embodiment is replaced with a blocking element  47 , and the blocking element  47  is disposed in the recess  102  of the base  10 , wherein the floating link  14 , the plunger  16 , the spring  50  and the blocking element  47  can be assembled in advance, wherein the spring  50  and the blocking element  47  are radially fitted to the plunger  16  while the plunger  16  moves relative to the blocking element  47  in an axial direction. The plunger  16  is disposed in the recess  102  of the base  10  after the assembly is completed. The chuck  48  is then inserted from the perforation  104  of the base  10  so as to be engaged with the plunger  16 . 
         [0057]    When one end of the lever arm  12  moves toward the base  10 , the movement of the other end of the lever arm  12  enables the floating link  14  to push the plunger  16  to move in an axial direction. The spring  50  will be pushed by the second connecting portion  162  of the plunger  16  so as to push the blocking element  47  with the protrusion of one end of the blocking element  47  abutting against the inner wall of the perforation  104  to prevent the blocking element  47  from moving. If the plunger  16  keeps moving towards the mold  42 , the spring  50  is pressed to generate an elastic force; if the user stops applying force to the lever arm  12 , then the spring  50  pushes the plunger  16  of the second connecting portion  162  in the opposite direction. Other descriptions can be referred to the descriptions in the second embodiment. 
         [0058]    Though the embodiment of the present invention have been shown and described, it will be understood by those skilled in the art that such embodiments may be varied without departing from the principles and spirit of the present invention. The scope of the present invention is limited by the scope of the patent application adopted and its equivalents. The scope of protection of the present invention shall be defined as the scope of the patent application as claimed. It should be noted that the wording “include” does not exclude other elements and the word “one” does not exclude multiple. 
         [0059]    Unless otherwise stated, all measurements, values, ratings, positions, magnitudes, sizes, and other specifications that are set forth in this specification, including in the claims that follow, are approximate, not exact. They are intended to have a reasonable range that is consistent with the functions to which they relate and with what is customary in the art to which they pertain.