referring to fig1 a and 1b , an exploded perspective view of the embodiment about the corner fixing block of the present invention is illustrated in fig1 a , and the assembly view of the embodiment about the corner fixing block of the present invention is illustrated in fig1 b . the present invention is formed by two fixing blocks 1 and 2 , and a device body 3 . the two fixing blocks 1 and 2 include fixing surfaces 11 and 21 , first supporting surfaces 12 and 22 , second supporting surfaces 13 and 23 , device surfaces 14 and 24 and locking surfaces 15 and 25 . the locking surfaces 15 and 25 are installed with holes 16 and 26 . the holes 16 and 26 penetrates through the locking surfaces 15 and 25 and the fixing surfaces 11 and 21 . the first supporting surfaces 12 and 22 are connected in parallel . a screw 3 locks the device body 3 to the device surfaces 14 and 24 . therefore , the device body 3 can be fixed to the fixing blocks 1 and 2 . then , screws 41 and 42 pass through the two locking surfaces 15 and 25 of the fixing blocks 1 and 2 . then the two fixing surfaces 11 and 21 of the fixing blocks 1 and 2 are locked to a retaining object 5 a having a concave portion with a 90 degree angle or a wall ( referring to fig3 a ). referring to fig2 a and 2b , fig2 a is an exploded perspective view of the embodiment about the corner fixing block of the present invention ; and fig2 b is an assembly view of the embodiment about the corner fixing block of the present invention . the second supporting surfaces 13 and 23 of two fixing blocks 1 and 2 are connected in parallel . a screw 33 serves to lock the device body 3 to the two device surfaces 14 and 24 . the device body 3 is fixed to the fixing blocks 1 and 2 . then , screws 41 and 42 pass through the holes 16 and 36 of the two locking surfaces 15 and 25 of the fixing blocks 1 and 2 . then the two fixing surfaces 11 and 21 of the fixing blocks 1 and 2 are locked to a retaining object 5 b having a portion protruded with 90 degree angle or a wall ( referring to fig3 b ). referring to fig4 a and 4b , fig4 a shows a locking way of the corner fixing block of the present invention . fig4 b is a locking way of the corner fixing block of the present invention by a protruding hooks for suiting various installing ways of device bodies 3 a . the fixing blocks 1 a and 2 a are matchable to the hole 35 of the device body 3 a . by a screw 34 , the device body 3 a is fixed to a fixing object 5 c . another device body 3 b is fixed to the fixing blocks 1 b and 2 b . in that , a device body 3 b is designed with protruding hooks 31 b . by positions of the fixing blocks 1 b and 2 b with respect to the hooks 31 b , when grooves 32 b are installed . the hooks 31 b of the device body 3 b is placed to the grooves 32 b of the fixing blocks 1 b and 2 b , then the device body 3 b is fixed to the fixing object 5 d . referring to fig5 the fixing blocks connected in parallel in the corner fixing block of the present invention is illustrated . in the two assembly ways , first and second ways , the corner fixing block can be used to be connected with one of the fixing blocks 1 or 2 in parallel . as comparing with the prior art , the present invention has the following advantages : ( 1 ) a device body can be installed to a fixing object with a vertical protruding portion or a wall . ( 2 ) a device body can be installed to a fixing object with a vertical collapsed portion or a wall . ( 3 ) the operator may be used a device by installing with the present invention . ( 4 ) in using the present invention , the fixing blocks are unnecessary to be updated . it is only necessary to remove the device body , and thus , the fixing blocks can be used repeatedly and the cost is reduced . the present invention are thus described , it will be obvious that the same may be varied in many ways . such variations are not to be regarded as a departure from the spirit and scope of the present invention , and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims .
a corner fixing block having at least two fixing blocks of identical structure and a device body is disclosed . the first supporting surfaces of two fixing blocks are assembled in parallel , or two second supporting surfaces are assembled in parallel . two fixing surfaces of two fixing blocks are used to form another fixing surface with a concave or a convex portion having a 90 degrees angle .