Abstract:
In the field of communication technologies, a fixing device for a holding pole is provided, so as to solve the problem of increased mounting cost due to too much manpower occupied by mounting the fixing device for the holding pole. The fixing device for the holding pole includes a first fastener, a second fastener, and a securing member, two ends of the first fastener are radially engaged with two ends of the second fastener to form a ring, and the securing member rotatably runs through the first fastener or the second fastener to reach the inside of the ring.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of International Application No. PCT/CN2009/075606, filed on Dec. 15, 2009, which claims priority to Chinese Patent Application No. 200810220168.8, filed on Dec. 19, 2008, both of which are hereby incorporated by reference in their entireties. 
    
    
     FIELD OF THE INVENTION 
     The present invention relates to the field of communications technologies, and in particular, to a fixing device for a holding pole applied to clamp the pole. 
     BACKGROUND OF THE INVENTION 
     An outdoor small communication module, such as a Remote Radio Unit (RRU), is generally mounted on a pole to be adapted to situations such as a park, a roof, an iron tower, and a hillside. Currently, in a manner for mounting a small communication module on a pole, a fixing device for a holding pole is first mounted on the pole to form a mounting base for mounting small communication equipment, and then the small communication equipment is fixed on the fixing device for the holding pole. 
       FIG. 1  shows an existing manner of mounting a fixing device for a holding pole on the pole. As shown in  FIG. 1 , the fixing device for the holding pole includes a first fastener  110 , a second fastener  120 , and two screws  180 . Both the first fastener  110  and the second fastener  120  are disposed with a V-shaped slot, and threaded holes are opened in two end portions of both the first fastener  110  and the second fastener  120 . The V-shaped slot of the first fastener  110  corresponds to the V-shaped slot of the second fastener  120 , and the two threaded holes of the first fastener  110  correspond to the two threaded holes of the second fastener  120 . When the fixing device for the holding pole is mounted on the pole  190 , a first operator levels the first fastener  110  and the second fastener  120 , at the same time surrounds the pole  190  with the first fastener  110  and the second fastener  120  through the V-shaped slot of the first fastener  110  and the V-shaped slot of the second fastener  120 , and adjusts the height of top surfaces of the first fastener  110  and the second fastener  120  to make sure that the V-shape slot of the first fastener  110  and the V-shaped slot of the second fastener  120  clamp the pole  190  and meanwhile the two threaded holes of the first fastener  110  are aligned with the two threaded holes of the second fastener  120 . Then, a second operator screws the two screws  180  into the two threaded holes of the first fastener  110  and the corresponding threaded holes of the second fastener  120  to make the first fastener  110  and the second fastener  120  of the fixing device for the holding pole together clamp the pole  190 . 
     In view of the above, two persons are required to perform the operation to make the fixing device for the holding pole clamp the pole  190 . That is to say, the first operator levels the first fastener  110  and the second fastener  120 , and adjusts the height of the top surfaces of the first fastener  110  and the second fastener  120 . The second operator screws the two screws  180  into the two threaded holes of the first fastener  110  and the corresponding threaded holes of the second fastener  120  respectively to make the first fastener  110  and the second fastener  120  clamp the pole  190 . The fixing device for the holding pole is operated by two persons, thereby occupying excessive manpower, which increases the mounting cost of the fixing device for the holding pole in a disguised manner. 
     SUMMARY OF THE INVENTION 
     The present invention is directed to a fixing device for a holding pole, so as to solve the problem of increased mounting cost due to excessive manpower occupied by mounting the fixing device for the holding pole in the prior art. 
     An embodiment of the present invention provides a fixing device for a holding pole, which includes a first fastener, a second fastener, and a securing member. Two ends of the first fastener are radially engaged with two ends of the second fastener to form a ring, and the securing member rotatably runs through the first fastener or the second fastener to reach the inside of the ring. 
     According to the technical solution, when the fixing device for the holding pole is mounted on the holding pole, the two ends of the first fastener are radially engaged with the two ends of the second fastener, and then the securing member runs through the first fastener and/or the second fastener to press against the holding pole. The fixing device for the holding pole makes it possible for one person to mount the fixing device for the holding pole, thereby reducing the mounting cost of the fixing device for the holding pole in the prior art. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       To make the technical solution of the present invention or the prior art more comprehensible, the accompanying drawings required to be used in the descriptions of the embodiments and the prior art are simply described below. Apparently, the accompanying drawings described below merely demonstrate some of the embodiments of the present invention. Based on the accompanying drawings, persons of ordinary skill in the art may obtain other accompanying drawings without creative efforts. 
         FIG. 1  is a schematic three-dimensional view of a fixing device for a holding pole mounted on the pole in the prior art; 
         FIG. 2  is a top view of a fixing device for a holding pole mounted on the pole according to an embodiment of the present invention; 
         FIG. 3  is an assembly state diagram of a fixing device for a holding pole mounted on the pole according to a first embodiment of the present invention; 
         FIG. 4  is a schematic sectional view of the fixing device for the holding pole mounted on the pole in  FIG. 3 ; 
         FIG. 5   a  is an enlarged view of a part B in  FIG. 4 ; 
         FIG. 5   b  is another enlarged view of the part B in  FIG. 4 ; 
         FIG. 5   c  is another enlarged view of the part B in  FIG. 4 ; 
         FIG. 6  is a three-dimensional view of a fixing device for a holding pole according to a second embodiment of the present invention; 
         FIG. 7  is a three-dimensional view of a fixing device for a holding pole according to a third embodiment of the present invention; 
         FIG. 8   a  is a three-dimensional view of a fixing device for a holding pole according to a fourth embodiment of the present invention; and 
         FIG. 8   b  is a schematic view illustrating the principle of mounting the fixing device for the holding pole in  FIG. 8   a.    
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     The technical solution of the present invention is clearly described in the following with reference to the accompanying drawings. It is obvious that the embodiments to be described are only a part rather than all of the embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. 
       FIG. 2  is a top view of a fixing device for a holding pole mounted on the pole according to an embodiment of the present invention. As shown in  FIG. 2 , the fixing device for the holding pole includes a first fastener  210 , a second fastener  220 , and a securing member  230 . Two ends of the first fastener  210  are radially engaged with two ends of the second fastener  220  to form a ring  280 . The securing member  230  rotatably runs through the first fastener  210  or the second fastener  220  to reach the inside of the ring  280 . 
     Still referring to  FIG. 2 , when an operator makes the second fastener  220  contact the pole  290  and makes the first fastener  210  move towards the pole  290 , the two ends of the first fastener  210  are radially guided into the two ends of the second fastener  220  to make the first fastener  210  engaged with the second fastener  220 . Then, the operator makes the securing member  230  run through the first fastener  210  or the second fastener  220  to press against the pole  290 . In this manner, the fixing device for the holding pole is mounted on the pole  290 . 
     In view of the above, when the fixing device for the holding pole is mounted on the holding pole  290 , the two ends of the first fastener  210  are radially engaged with the two ends of the second fastener  220 , and then the securing member  230  runs through the first fastener  210  or the second fastener  220  to press against the holding pole  290 . The fixing device for the holding pole makes it possible for one person to mount the fixing device for the holding pole, thereby reducing the mounting cost of the fixing device for the holding pole. 
     The securing member  230  may be a screw. 
     Referring to  FIG. 3 , the first fastener  210  includes a first main body  210   a  and guiding structural members extending outwards along two ends of the first main body  210   a ; the second fastener  220  includes a second main body  220   a  and protruding structural members extending outwards along two ends of the second main body  220   a ; and the guiding structural members are engaged with the protruding structural members. The securing member  230  rotatably runs through the first main body  210   a.    
     Still referring to  FIG. 3 , the guiding structural member is a bar-shaped recessed portion  211 , and the protruding structural member is a bar-shaped protrusion  221 . The bar-shaped recessed portion  211  is opened with first through holes  211   a , and the bar-shaped protrusion  221  is disposed with retaining blocks  321   a . The retaining block  321   a  may be engaged with the first through hole  211   a.    
     When the first fastener  210  and the second fastener  220  are mounted on the pole  290 , the operator makes the second fastener  220  contact the pole  290 , and makes the first fastener  210  move towards the pole  290 . The bar-shaped protrusion  221  of the second fastener  220  may slide along the bar-shaped recessed portion  211 , and the retaining block  321   a  of the bar-shaped protrusion  221  may be engaged with the first through hole  211   a  of the bar-shaped recessed portion  211 . Then, the operator rotates the securing member  230  rotatably disposed on the first main body  210   a  to make the securing member  230  press against the pole  290 , so that the first fastener  210  and the second fastener  220  are mounted on the pole  290 . 
     Referring to  FIG. 5   a , the bar-shaped protrusion  221  is disposed with the retaining block  321   a.    
     Specifically, the retaining block  321   a  is fixedly disposed on the bar-shaped protrusion  221  through an elastic element  321   c.    
     Furthermore, the bar-shaped protrusion  221  is opened with second through holes  321   b . One end of the elastic element  321   c  is fixedly disposed on the bar-shaped protrusion  221 , and the other end of the elastic element  321   c  is fixedly disposed on the retaining block  321   a . The retaining block  321   a  is received by the second through hole  321   b , and protrudes out of the second through hole  321   b.    
     Referring to  FIG. 5   b , the operator makes the first fastener  210  move towards the second fastener  220  so that the bar-shaped protrusion  221  of the second fastener  220  slides along the bar-shaped recessed portion  211 , the bar-shaped recessed portion  211  presses against the retaining block  321   a  protruding out of the second through hole  321   b  to make the retaining block  321   a  withdraw into the second through hole  321   b , and during withdrawing, the retaining block  321   a  presses against the elastic element  321   c . Referring to  FIG. 5   c , the operator makes the first fastener  210  continue moving towards the second fastener  220 , and makes the first through hole  211   a  of the bar-shaped recessed portion  211  aligned with the retaining block  321   a , and at this time, the pressed elastic element  321   c  pushes the retaining block  321   a  into the second through hole  321   b  to be engaged with the first through hole  211   a . In this manner, the two ends of the first fastener  210  are radially engaged with the two ends of the second fastener  220 . 
     Referring to  FIG. 4 , the fixing device for the holding pole further includes springs  341  and a slide block  342  located in the ring  280 . One end of the spring  341  is fixed on the first main body  210   a , and the other end of the spring  341  is fixed on the slide block  342 . After the first fastener  210  is engaged with the second fastener  220 , the securing member  230  rotatably runs through the first main body  210   a  and presses against the slide block  342 , and at the same time, the slide block presses against the pole  290 . 
     The slide block  342  are slidably disposed at the bar-shaped recessed portions  211 . 
     Still referring to  FIG. 4 , the fixing device for the holding pole further includes guide rods  343 . The guide rod  343  runs through the spring  341 , one end of the guide rod  343  is fixed on the slide block  342 , and the other end of the guide rod  343  is slidably disposed inside the first main body  210   a . The guide rod  343  guides the spring  341  to extend and retract between the first fastener  210  and the slide block  342 , so as to be adapted to the holding pole  290  of different diameters. 
     In view of the above, when the fixing device for the holding pole is mounted on the holding pole  290 , the two ends of the first fastener  210  are radially engaged with the two ends of the second fastener  220 , and then the securing member  230  runs through the first fastener  210  to press against the slide block  342 , so that the slide block  342  presses against the holding pole  290 . The fixing device for the holding pole makes it possible for one person to mount the fixing device for the holding pole, thereby reducing the mounting cost of the fixing device for the holding pole. 
     Referring to  FIG. 6 , according to a second embodiment of the present invention, the guiding structural member is the bar-shaped recessed portion  211 , the bar-shaped recessed portion  211  is opened with the first through holes  211   a , the bar-shaped protrusion  221  is opened with third through holes  221   a , and the first through hole  211   a  is connected to the third through hole  221   a  through a connecting member  444   a . The operator makes the first fastener  210  move towards the second fastener  220 , and the bar-shaped protrusion  221  of the second fastener  220  may slide along the bar-shaped recessed portion  211 . During sliding, the operator makes the third through hole  221   a  of the bar-shaped protrusion  221  aligned with the first through hole  211   a  of the bar-shaped recessed portion  211 , and then makes the connecting member  444   a  run through the first through hole  211   a  and the third through hole  221   a , so that the two ends of the second fastener  220  are radially engaged with the two ends of the first fastener  210 . 
     It can be understood that, the connecting member  444   a  may be a pin. 
     Referring to  FIG. 6 , the fixing device for the holding pole further includes an elastic plate  441  and the slide block  342  located in the ring  280 . Two end portions of the elastic plate  441  are fixed on the two ends of the first main body  210   a  respectively, and a middle portion of the elastic plate  441  is fixed on the slide block  342 . The two ends of the slide block  342  are slidably disposed at the bar-shaped recessed portions  211 . After the first fastener  210  is engaged with the second fastener  220 , the securing member  230  rotatably runs through the first main body  210   a  to press against the elastic plate  441  and further presses against the slide block  342 , and at the same time, the slide block presses against the pole  290 . 
     In view of the above, when the fixing device for the holding pole is mounted on the holding pole  290 , the two ends of the first fastener  210  are radially engaged with the two ends of the second fastener  220 , and then the securing member  230  runs through the first fastener  210  to press against the elastic plate  441  and further presses against the slide block  342 , so that the slide block  342  presses against the holding pole  290 . The fixing device for the holding pole makes it possible for one person to mount the fixing device for the holding pole, thereby reducing the mounting cost of the fixing device for the holding pole. 
     Referring to  FIG. 7 , according to a third embodiment of the present invention, the guiding structural member is a shaft sleeve  311 , and the protruding structural member is a shaft  321 . 
     Still referring to  FIG. 7 , the shaft sleeve  311  is opened with the first through holes  211   a , and the shaft  321  is disposed with engagement mechanisms  333 . The engagement mechanism  333  can be engaged with the first through hole  211   a.    
     The engagement mechanism  333  may be a resilient button. 
     In view of the above, in the embodiment of the present invention, the shaft  321  of the second fastener  220  of the fixing device for the holding pole slides along the shaft sleeve  311  of the first fastener  210 , and is engaged with the first through hole  211   a  through the resilient button. Then, the securing member  230  is rotated to press against the pole. In this manner, the embodiment of the present invention makes it possible for one person to mount the fixing device for the holding pole, thereby reducing the mounting cost of the fixing device for the holding pole. 
     Referring to  FIG. 8 , according to a fourth embodiment of the present invention, the first fastener  210  includes the first main body  210   a  and first protruding structural members  411  extending outwards along the two ends of the first main body  210   a . An inner side of the first protruding structural member  411  is disposed with protrusions  411   a . The second fastener  220  includes the second main body  220   a  and second protruding structural members  421  extending outwards along the two ends of the second main body  220   a . An outer side of the second protruding structural member  421  is opened with recessed portions  421   a . The protrusion  411   a  may be received in the recessed portion  421   a.    
     An edge of the recessed portion  421   a  is bent inwards to form a hook  421   b.    
     As shown in  FIG. 8   b , the operator makes the second fastener  220  move towards the first fastener  210 , and makes the recessed portion  421   a  of the second protruding structural member  421  aligned with the protrusion  411   a  of the first protruding structural member  411 . At this time, the operator makes the second protruding structural member  421  engaged with the protrusion  411   a  through the recessed portion  421   a , and then makes the hook  421   b  of the recessed portion  421   a  move towards the protrusion  411   a  to be engaged with the protrusion  411   a . In this manner, the two ends of the second fastener  220  are radially engaged with the two ends of the first fastener  210 . 
     In view of the above, in the embodiment of the present invention, after the recessed portion  421   a  of the second fastener  220  of the fixing device for the holding pole is engaged with the protrusion  411   a  of the first fastener  210 , the securing member  230  is rotated to press against the pole. In this manner, the embodiment of the present invention makes it possible for one person to mount the fixing device for the holding pole, thereby reducing the mounting cost of the fixing device for the holding pole. 
     It should be noted that, as shown in  FIGS. 4 ,  6 ,  7 , and  8   a , the second main body  220   a  of the second fastener  220  may be disposed with a V-shaped slot  312 . As shown in  FIGS. 4 and 6 , the slide block  342  may be disposed with a V-shaped slot  342   a . The V-shaped slot  312  and the V-shaped slot  342   a  increase the contact area when the pole  290  presses against the second fastener  220  and the slide block  342 , so as to more tightly hold the pole  290 . 
     The above descriptions are merely preferred embodiments of the present invention, but not intended to limit the scope of the present invention. Any equivalent variation made according to the claims of the present invention shall fall within the scope of the present invention.