Patent Publication Number: US-2013249363-A1

Title: Combined frame for an electromechanical box

Description:
The present invention is a divisional application of application Ser. No. 13/541,451 filed on Jul. 3, 2012. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a combined frame, and more particularly to a combined frame for an electromechanical box that can be assembled and positioned easily, can be assembled and carried conveniently to reduce the cost of transportation. 
     2. Description of Related Art 
     A conventional frame for an electromechanical box is assembled by multiple beams, multiple columns and multiple corner connectors. After assembling the beams, the columns and the corner connectors of the conventional frame, the beams, the columns and the corner connectors are connected to each other by welding. When the conventional frame is manufactured, the assemblement between the beams, the columns and the corner connectors is difficult and needs to be done in the manufacturing factory. The large space of the conventional frame will increase the costs for transporting the conventional frame. 
     Furthermore, a conventional combined frame is assembled by multiple modular connectors, multiple beams and multiple columns. The modular connectors are used to the replace the corner connectors of the conventional frame to solve the problem of difficult assemblement of the corner connectors. However, the beams, the columns and the modular connectors are securely connected to each other by welding after assembling, the fixed structure of the conventional combined frame can not be detached and the large space that the conventional combined frame occupies will increase the costs for transporting the conventional combined frame. 
     The combined frame for an electromechanical box in accordance with the present invention mitigates or obviates the aforementioned problems. 
     SUMMARY OF THE INVENTION 
     The main objective of the present invention is to provide a combined frame for an electromechanical box that can be assembled and positioned easily, can be assembled without welding and carried conveniently to reduce the cost of transportation. 
     The combined frame for an electromechanical box in accordance with the present invention has eight transversal beams, eight major connectors and four longitudinal columns. Each transversal beam has a body, two side covers and two fasteners. The side covers are securely mounted on the body and each has a fastening hole. The fasteners are respectively connected to the fastening holes of the side covers. Each major connector is connected to two adjacent transversal beams and has an internal surface, an external surface, a bottom, a top, an abutting wall, two through holes and a mounting hole. The longitudinal columns are connected to the major connectors between the transversal beams and each longitudinal column has a body, two minor connectors and two fixing elements. The minor connectors are respectively and securely mounted in the body and are respectively connected to the major connectors. The fixing elements are mounted through the minor connectors and are securely mounted in the corresponding major connectors to connect the longitudinal column securely with the corresponding major connectors. 
     Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of a first embodiment of a combined frame for an electromechanical box in accordance with the present invention; 
         FIG. 2  is an enlarged perspective view of a mounting frame of the combined frame in  FIG. 1 ; 
         FIG. 3  is an enlarged and exploded perspective view of the mounting frame of the combined frame in  FIG. 2 ; 
         FIG. 4A  is an enlarged perspective view of a transversal beam of the combined frame in  FIG. 1 ; 
         FIG. 4B  is an enlarged perspective view of the transversal beam of the combined frame in  FIG. 4A ; 
         FIG. 5  is an enlarged perspective view of a major connector of the combined frame in  FIG. 1 ; 
         FIG. 6  is another enlarged perspective view of a major connector of the combined frame in  FIG. 1 ; 
         FIG. 7  is an enlarged perspective view of a longitudinal column of the combined frame in  FIG. 1 ; 
         FIG. 8  is an enlarged and exploded perspective view of the combined frame in  FIG. 1 ; 
         FIG. 9  is another enlarged and exploded perspective view of the combined frame in  FIG. 1 ; 
         FIG. 10  is a perspective view of a second embodiment of a combined frame for an electromechanical box in accordance with the present invention; 
         FIG. 11  is an enlarged and exploded perspective view of the combined frame in  FIG. 10 ; 
         FIG. 12  is a perspective view of a third embodiment of a combined frame for an electromechanical box in accordance with the present invention; 
         FIG. 13  is an enlarged perspective view of a longitudinal column of the combined frame in  FIG. 12 ; and 
         FIG. 14  is an exploded and enlarged perspective view of a linking set of the longitudinal column in  FIG. 13 . 
     
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENT 
     With reference to  FIG. 1 , a combined frame in accordance with the present invention for an electromechanical box comprises eight transversal beams  10 , eight major connectors  20  and four longitudinal columns  30 . 
     With reference to  FIGS. 2 ,  3 ,  4 A and  4 B, each transversal beam  10  has a body  11 , two side covers  12 , two waterproof bars  13  and two fasteners  14 . The body  11  is L-shaped in cross section and has an external surface, two ends, multiple holding holes and two mounting holes. The holding holes are formed in the external surface of the body  11  at intervals between the ends of the body  11 . The mounting holes are respectively formed through the ends of the body  11 . 
     The side covers  12  are L-shaped, are respectively and securely mounted in the mounting holes of the body  11 , and each side cover  12  has an inner side, an outer side, a middle, a positioning bar  120  and a fastening hole  121 . The inner side of the side cover  12  abuts a corresponding end of the body  11 . The positioning bar  120  may be L-shaped, is formed on and protrudes from the outer side of the side cover  12  and has an external surface and an engaging slot  1201 . The engaging slot  1201  is formed in the external surface of the positioning bar  120 . The fastening hole  121  is formed in the middle of the side cover  12 . 
     The waterproof bars  13  are respectively mounted on and abut the external surfaces of the positioning bars  120  of the side covers  12  and respectively engage the engaging slots  1201  of the positioning bars  120 . The fasteners  14  are respectively connected to the fastening holes  121  of the side covers  12 . 
     With reference to  FIGS. 5 and 6 , each major connector  20  may be L-shaped, is connected to two adjacent transversal beams  10  and has an internal surface, an external surface, a bottom, a top, an abutting wall  21 , a positioning arm  22 , two through holes  23 , a mounting hole  24 , a positioning recess  25 , two positioning slots  26  and a waterproof bar  27 . The internal surface of the major connector  20  has a middle face and two side faces. The side faces are formed with the middle face. The external surface of the major connector  20  has two side faces respectively parallel the side faces of the internal surface of the major connector  20 . 
     The abutting wall  21  is defined on the middle face of the internal surface of the major connector  20  between the side faces of the internal surface of the major connector  20 . The positioning arm  22  is formed on and protrudes from the bottom of the major connector  20  along the internal surface and has an inner face and a mounting slot  220 . The mounting slot  220  is formed in the inner face of the positioning arm  22 . 
     The through holes  23  are respectively formed through the side faces of the internal surface and the external surface of the major connector  20  above the positioning arm  22  and respectively align with two of the fastening holes  121  of the adjacent transversal beams  10 . The mounting hole  24  is formed through the abutting wall  21  and the external surface of the major connector  20 . The positioning recess  25  is formed in the abutting wall  21  between the mounting hole  24  and the top of the major connector  20 . 
     The positioning slots  26  are respectively formed in the side faces of the external surface of the major connector  20  from the top to the positioning arm  22  of the major connector  20  and have shapes corresponding to the positioning bars  120  of the adjacent transversal beams  10 . The waterproof bar  27  is mounted on and abuts the inner face of the positioning arm  22  and engages the mounting slot  220  of the positioning arm  22 . 
     Wit reference to  FIGS. 2 and 3 , four of the adjacent transversal beams  10  are connected to four of the major connectors  20  by the positioning slots  26  of the corresponding major connectors  20  respectively engaging the positioning bars  120  of the corresponding adjacent transversal beams  10  to enable the fastening holes  121  of the corresponding transversal beams  10  to respectively align the though holes  23  of the corresponding major connectors  20 . Then, the fasteners  14  are respectively connected to the fastening holes  121  of the corresponding transversal beams  10  via the corresponding through holes  23  of the corresponding major connectors  20  to connect the corresponding transversal beams  10  with each other by the corresponding major connectors  20  to form a rectangular mounting frame A, B. By the same means of assembling the other transversal beams  10  and the other major connectors  20  to form another mounting frame A, B. With reference to  FIG. 1 , the two mounting frames A, B that are formed by the transversal beams  10  and the major connectors  20  are respectively defined as a top mounting frame A and a bottom mounting frame B. 
     With reference to  FIGS. 7 ,  8  and  9 , the longitudinal columns  30  are connected to the major connectors  20  between the mounting frames A, B, and each longitudinal column  30  has a body  31 , two minor connectors  32  and two fixing elements  33 . The body  31  is a L-shaped in cross section and has an external surface, two ends, multiple holding holes and two mounting holes. The holding holes are formed in the external surface of the body  31  at intervals between the ends of the body  31 . The mounting holes are respectively formed through the ends of the body  31 . 
     The minor connectors  32  are respectively and securely mounted in the mounting holes of the body  31  and are respectively connected to two of the major connectors  20 , and each minor connector  32  has a locating segment  321 , a mounting stud  322 , an assembling hole  323  and a locating protrusion  324 . The locating segment  321  is mounted in one of the mounting holes of the body  31  and has a shape, a bottom, a top, a middle, an external surface and a locating recess  3210 . The shape of the minor locating segment  321  is corresponding to the shape of the mounting holes of the body  31 . The locating recess  321  is formed in the external surface of the locating segment  321  at the bottom of the locating segment  321  and engages the positioning arm  22  of a corresponding major connector  20 . 
     The mounting stud  322  may be semicircular in cross section, is formed on and protrudes from the top of the locating segment  321  at the middle of the locating segment  321  and abuts the internal surface of the major connector  20 . The mounting stud  322  has an external surface and a pressing wall  3220 . The pressing wall  3220  is formed on the external surface of the mounting stud  322  and faces and abuts the abutting wall  21  of the corresponding major connector  20 . The assembling hole  323  is transversally formed through the mounting stud  322  between the pressing wall  3220  and the locating segment  321  and aligns with the mounting hole  24  of the corresponding major connector  20 . The locating protrusion  324  is formed on and protrudes from the pressing wall  3220  of the mounting stud  322  above the assembling hole  323  and is mounted in the positioning recess  25  of the corresponding major connector  20 . 
     The fixing elements  33  are mounted through the assembling holes  323  of the minor connectors  32  and are securely mounted in the mounting holes  24  of the corresponding major connectors  20  to connect the longitudinal column  30  securely with the corresponding major connectors  20 . 
     With reference to  FIGS. 8 and 9 , the longitudinal columns  30  are securely connected to the mounting frames A, B by the fixing elements  33  mounting through the assembling holes  323  of the minor connectors  32  and securely mounting in the mounting holes  24  of the major connectors  20  to form the combined frame in accordance with the present invention shown in  FIG. 1 . 
     With further reference to  FIGS. 1 and 2 , in assembling, the mounting frames A, B that are formed by the transversal beams  10  and the major connectors  20  can be used as the top and the bottom of the combined frame in accordance with the present invention, and the longitudinal columns  30  are respectively and securely connected to the major connectors  20  between the mounting frames A, B by the fixing elements  33  to form the combined frame without welding. Therefore, the combined frame in accordance with the present can be assembled or disassembled easily, and can be transported and then be connected to each other to form the combined frame quickly and easily. Then, the combined frame can be transported conveniently and the costs for transporting the combined frame can be reduced. In addition, the waterproof bars  13 ,  27  are mounted between the assemblement of the transversal beams  10 , the major connectors  20  and the longitudinal columns  30  to provide a waterproof effect to the combined frame in accordance with the present invention. With reference to  FIGS. 10 and 11 , a second embodiment of a combined frame for an electromechanical box in accordance with the present invention has the similar structures as the first embodiment of a combined frame for an electromechanical box. In addition, the combined frame further has multiple supporting beams  40  connected between two adjacent longitudinal columns  30  or two transversal beams  10  of the mounting frames A, B to provide a preferred positioning effect to the combined frame to prevent the combined frame from deforming In addition, the combined frame further has multiple assembling blocks  70  are connected between two adjacent supporting beams  40 , and each assembling block  70  has a block body  71 , two holding wings  72 , a limiting panel  73  and a fastening board  74 . The block body  71  is securely connected to one of the two adjacent supporting beams  40  and has two sidewalls, a front side and a rear side. The holding wings  72  are respectively formed with the sidewalls of the block body  71  and abut the supporting beam  40  that is securely connected to the block body  71 . The limiting panel  73  is formed on and protrudes from the front side of the block body  71  and abuts with the other one of the two adjacent supporting beams  40 . The fastening board  74  is formed on and protrudes from the rear side of the block body  71  and is securely connected to the supporting beam  40  that abuts with the limiting panel  73 . Then, the two adjacent supporting beams  40  can be connected to each other by the assembling block  70 . 
     Additionally, with reference to  FIGS. 12 to 14 , the third embodiment of a combined frame for electromechanical box in accordance with the present invention has the similar structures as the first embodiment of a combined frame for an electromechanical box. In addition, each one of the longitudinal columns  30  further has multiple linking sets mounted on the body  31  of the corresponding longitudinal column  30  at intervals to connect a longitudinal column  30  of an adjacent combined frame. Each linking set has two linking blocks  50  and a connecting base  60 . Each linking block  50  is detachably mounted on the body  31  of a corresponding longitudinal column  30  by fasteners and has a connecting tab  51  formed on and protrudes from an outer side of the block  50 . The connecting tab  51  of the linking block  50  of the longitudinal column  30  of the combined frame is connected to the connecting tab  51  of the linking block  50  of a longitudinal column  30  of an adjacent combined frame. The connecting base  60  is mounted around the connecting tabs  51  of the corresponding linking blocks  50  of the two adjacent combined frames and has two bolts  61  respectively and securely screwed to the connecting tabs  51  of the corresponding linking blocks  50  to connect the longitudinal columns  30  of the two adjacent combined frames with each other. 
     Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.