Abstract:
The invention discloses a guide rail for solar mounting, comprising a main body; the main body is provided with a first slotted rail on the top, a nut rail on one sidewall, and a second slotted rail on the other sidewall; the first slotted rail has an upward opening; the second slotted rail has an opening perpendicular to that of the first slotted rail and with the back against the main body; the nut rail has an opening perpendicular to that of the first slotted rail and with the back against the main body; the second slotted rail has an opening opposite to that of the nut rail. The guide rail for solar mounting can be fixed in diversified ways, i.e, by an outer-hexagonal part or a fixture block, meeting operating requirements under different conditions.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This present application claims the benefit of Chinese Patent Application No. 201510379785.2 filed on Jul. 1, 2015, the contents of which are hereby incorporated by reference. 
     FIELD OF THE INVENTION 
     The invention relates to the field of guide rail for bracket, in particular to a guide rail for solar mounting. 
     DESCRIPTION OF THE RELATED ART 
     Solar panel is the core in a solar power system, and is also the part with the highest value in the solar power system. The role of the solar panel is to convert the radiation energy from the sun into electric energy or send the electric energy to batteries for storage or drive loading. The solar panel is installed in the solar assembly, and the solar assembly is traditionally installed on the guide rail for solar mounting through a fixed part, which is quite complicated. With the popularization of solar power generation, the demand for solar mounting in the market, such as environmental protection, service life and the safety status on the roof, becomes higher and higher. Meanwhile, the single installation means is difficult to meet the operating requirements under different conditions. 
     SUMMARY OF THE INVENTION 
     The invention provides a guide rail for solar mounting to solve the problem of single installation means of guide rail for bracket in the prior art. 
     The invention further provides a fixture block used cooperatively with the guide rail for solar mounting to solve the problem that the fixture block cannot be earthed in the prior art. 
     The invention further provides a medium press block used cooperatively with the guide rail for solar mounting to solve the problems of material waste and inconvenient installation caused in puncturing on the back in the prior art. 
     The invention further provides a side press block used cooperatively with the guide rail for solar mounting to solve the problems of material waste and inconvenient installation caused in puncturing the back in the prior art. 
     The technical solution of the invention is realized by: 
     A guide rail for solar mounting, comprising a main body; 
     the main body is provided with a first slotted rail on the top, a nut rail on one sidewall, and a second slotted rail on the other sidewall; 
     the first slotted rail has an upward opening; 
     the second slotted rail has an opening perpendicular to that of the first slotted rail and with the back against the main body; 
     the nut rail has an opening perpendicular to that of the first slotted rail and with the back against the main body; 
     and the second slotted rail has an opening opposite to that of the nut rail. 
     As a preferred technical solution, the main body, the first slotted rail, the nut rail and the second slotted rail are integrally formed. 
     As a preferred technical solution, the main body, the first slotted rail, the nut rail and the second slotted rail are of solid structure. The cross section of the guide rail is not provided with a mould cavity structure, which meets the strength requirement while saving material. 
     As a preferred technical solution, the edges of the openings of the first slotted guide rail and the second slotted rail are provided with rail strips toward the centers of the two slotted rails; the rail strip has certain included angle, less than 90°, with the sidewalls of the first slotted rail and the second slotted rail respectively, which achieves quick snap of the fixture block; the edges of the opening of the nut rail are provided with nut strips toward the center of the nut rail; and the nut strip is perpendicular to the sidewall of the nut rail. 
     As a preferred technical solution, a corrugated groove is arranged on the outer surface of the sidewall of the first slotted rail, which achieves the purpose of fastening while being used cooperatively with other parts. A corrugated groove is arranged on the surface of the nut strip, which achieves the purpose of fastening while being used cooperatively with other parts. 
     As a preferred technical solution, the guide rail for solar mounting is made of aluminum alloy. 
     As a preferred technical solution, the guide rail for solar mounting further comprises an earthed fixture block used cooperatively therewith; 
     the earthed fixture block comprises a fixture block body; 
     and a tip for puncturing the oxide membrane on the guide rail is arranged on the fixture block body. 
     As a preferred technical solution, the fixture block body is composed of a bottom face and four side faces; the side faces are arranged pairwise symmetrically; the two side faces that are arranged symmetrically are identical in shape; and tips for puncturing the oxide membrane on the guide rail are arranged on at least one pair of symmetrically arranged side faces; 
     and a hollow boss for fixing is arranged in the middle of the bottom face. 
     As a preferred technical solution, the connection between the bottom face and each side face has a curved transition. 
     As a preferred technical solution, tips for puncturing the oxide membrane on the guide rail are arranged on the tops of one pair of symmetrically arranged side faces of the fixture block body, and the other pair of symmetrically arranged side faces have planar tops. 
     As a preferred technical solution, the side faces with the planar tops are higher than the side faces provided with tips thereon. 
     As a preferred technical solution, the tips, identical in height, are regularly ranked on the tops of the side faces. 
     As a preferred technical solution, the number of the tips is more than two, which can improve the probability of puncturing oxide membrane and ensure that at least a tip can puncture the oxide membrane. 
     As a preferred technical solution, the guide rail for solar mounting further comprises an earthed side press block used cooperatively with the guide rail for solar mounting; the side press block is composed of a first panel, a second panel and a third panel; 
     the first panel is fixedly connected with the second panel, and the third panel is fixedly connected with the first panel; 
     the first, second and third panels form a “Z” shape; 
     at least a puncturing tip for puncturing the oxide membrane on the frame of a solar panel is arranged on the first panel; 
     and a through hole for fixing is arranged on the third panel. 
     As a preferred technical solution, at least two puncturing tips are arranged on the first panel, which can improve the probability of puncturing oxide membrane and ensure that at least a puncturing tip can puncture the oxide membrane. 
     As a preferred technical solution, the puncturing tips are embedded on the first panel and at the exterior of the first panel. 
     As a preferred technical solution, the first, second and third panels are integrally formed. 
     As a preferred technical solution, anti-skid lines are arranged on the bottom face of the first panel. 
     As a preferred technical solution, a gasket for puncturing the oxide membrane on the third panel is arranged at the connection between the through hole and a fixed block. 
     As a preferred technical solution, the gasket is composed of a plurality of sheets and a circular ring; the plurality of sheets are arranged on the perimeter of the circular ring and are ranked in circular array; the horizontal included angle between a sheet and the circular ring is 1°-5°. 
     As a preferred technical solution, the guide rail for solar mounting further comprises an earthed medium press block used cooperatively therewith, comprising a medium press block body; 
     the medium press block body comprises a first panel and a first bulge that is located in the middle of the first panel and is fixedly connected with the first panel; 
     a through hole penetrating the first bulge is arranged on the first panel; 
     and at least a puncturing tip for puncturing the oxide membrane on the frame of a solar panel is arranged on the first panel. 
     As a preferred technical solution, at least two puncturing tips are arranged on the first panel, which can improve the probability of puncturing oxide membrane and ensure that at least a puncturing tip can puncture the oxide membrane. 
     As a preferred technical solution, the two puncturing tips are symmetrically arranged on the first panel. 
     As a preferred technical solution, at least four puncturing tips are arranged on the first panel. 
     As a preferred technical solution, the four puncturing tips are arranged at four corners of the first panel. 
     As a preferred technical solution, the puncturing tips are embedded on the first panel and at the exterior of the first panel. 
     As a preferred technical solution, anti-skid lines are arranged on the first panel and are located at both sides of the first bulge. 
     As a preferred technical solution, the first panel and the first bulge are integrally formed. 
     Compared with the prior art, the invention has the following beneficial effects: 
     (1) The guide rail for solar mounting can be fixed in diversified ways, i.e, by an outer-hexagonal part or a fixture block, meeting operating requirements under different conditions. 
     (2) The cross section of the guide rail is not provided with a mould cavity structure, which meets the strength requirement while saving material. The guide rail is proper in design and stable in structure. 
     (3) A fixture block is arranged with tips, so that the fixture block, on the surface contacting the guide rail, can puncture the oxide membrane on the surface of the guide rail, which achieves earthing, higher safety and more convenient installation and application. 
     (4) The puncturing tips of the side/medium press block achieve puncturing the front without adding disposable sheet parts for puncturing the back, which reduces material waste. In addition, the puncturing tip is embedded on the side press block and can be used repeatedly, which makes the tip uneasy to damage, and makes installation more convenient and simple. The earthed side press block is used cooperatively with the gasket, which achieves integral earthing and largely improves safety of equipment. Meanwhile, anti-skid lines are arranged, so that the earthed side press block is fixed more firmly. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       In order to clearly describe the embodiments of the invention or the technical solutions in the prior art, the embodiments or drawings used in technical description will be simply introduced below. Apparently, the drawings described below are only some embodiments of the invention. A person skilled in the art can obtain other drawings based on these drawings without creative work. 
         FIG. 1  is the structural diagram  1  of the guide rail for solar mounting of the invention; 
         FIG. 2  is the structural diagram  2  of the guide rail for solar mounting of the invention; 
         FIG. 3  is the reference diagram  1  for application of the guide rail for solar mounting of the invention; 
         FIG. 4  is the reference diagram  2  for application of the guide rail for solar mounting of the invention; 
         FIG. 5  is a structural diagram of the fixture block used cooperatively with the guide for solar mounting of the invention; 
         FIG. 6  is the reference diagram  1  for application of the fixture block shown in  FIG. 5 ; 
         FIG. 7  is the structural diagram  1  of the side press block used cooperatively with the guide for solar mounting of the invention; 
         FIG. 8  is the structural diagram  2  of the side press block used cooperatively with the guide for solar mounting of the invention; 
         FIG. 9  is the reference diagram for application of the side press block shown in  FIG. 7 ; 
         FIG. 10  is the structural diagram of the gasket used cooperatively with the side press block shown in  FIG. 7 ; 
         FIG. 11  is the structural diagram of the medium press block used cooperatively with the guide for solar mounting of the invention; 
         FIG. 12  is the reference diagram for application of the medium press block shown in  FIG. 11 ; 
         FIG. 13  is the structural diagram showing the connecting piece and the fixed part for the guide rail for solar mounting of the invention that are combined; 
         FIG. 14  is the reference diagram for application of the connecting piece shown in  FIG. 13 ; 
     
    
    
     Wherein: 
       1 , guide rail for solar mounting;  11 , main body;  12 , first slotted rail;  13 , nut rail;  14 , second slotted rail;  15 , rail strip;  16 , nut strip; 
       2 , fixture block body;  21 , bottom face;  22 , first side face;  23 , second side face;  24 , third side face;  25 , fourth side face;  26 , first tip;  27 , hollow boss;  28 , fixed block;  29 , gasket; 
       3 , side press block;  31 , first panel;  32 , second panel;  33 , third panel;  34 , puncturing tip;  35 , first through hole;  29 , gasket;  291 , circular ring;  292 , sheet;  36 , anti-skid line; 
       4 , medium press block body;  41 , panel;  42 , first bulge;  44 , second through hole; 
       5 , connecting piece;  51 , panel;  52 , slot opening;  511 , fixing piece. 
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
     The technical solution in the embodiments of the invention will be described clearly and completely below. Apparently, the embodiments described are only some embodiments of the invention, not all embodiments. Based on the embodiments of the invention, all other embodiments obtained by a person skilled in the art without creative work will fall within the protection scope of the invention. 
     As shown in  FIG. 1  and  FIG. 2 , a guide rail for solar mounting  1  is composed of a main body  11 , a first slotted rail  12 , a nut rail  13  and a second slotted rail  14 . Wherein, the main body  11  is provided with the first slotted rail  12  on the top. The main body  11  is provided with the nut rail  13  on one sidewall, and the second slotted rail  14  on the other sidewall. Wherein, one edge of the second slotted rail  14  and one edge of the nut rail  13  overlap with the main body  11 . The first slotted rail  12  has an upward opening. The second slotted rail  14  has an opening perpendicular to that of the first slotted rail  12  and with the back against the main body  11 . The nut rail  13  has an opening perpendicular to that of the first slotted rail  12  and with the back against the main body  11 . The second slotted rail  14  has an opening opposite to that of the nut rail  13 . Wherein, the cross section of the guide rail for solar mounting  1 , composed of the main body  11 , first slotted rail  12 , nut rail  13  and second slotted rail  14 , is approximately rectangular. The guide rail for solar mounting  1  is made of aluminum alloy, characterized by environmental protection, long service life and light weight, and can meet the maximum safety status of the solar mounting installed on the roof. 
     The main body  11 , first slotted rail  12 , nut rail  13  and second slotted rail  14  of the invention are integrally formed, which can improve the strength of the guide rail and facilitate installation. 
     In order to save material and meet the requirement for strength of the guide rail, the main body  11 , first slotted rail  12 , nut rail  13  and second slotted rail  14  are all of solid structure. The cross section of the guide rail is not provided with a mould cavity structure. 
     In order to facilitate installation, the edges of the openings of the first slotted guide rail  12  and the second slotted rail  14  are provided with rail strips  15  toward the center of the two slotted rails; the rail strip  15  has certain included angle, less than 90°, with the sidewalls of the first slotted rail  12  and the second slotted rail  14  respectively, which achieves quick snap of the fixture block; the edge of the opening of the nut rail  13  is provided with a nut strip  16  toward the center of the nut rail  13 ; and the nut strip  16  is perpendicular to the sidewall of the nut rail  13 . 
     In order to fasten better, a corrugated groove is arranged on the outer surface of the sidewall of the first slotted rail  12 , which achieves the purpose of fastening when the first slotted rail  12  is used cooperatively with other parts. A corrugated groove is arranged on the surface of the nut strip  16 , which achieves the purpose of fastening when the nut rail  16  is used cooperatively with other parts. 
       FIG. 3  is the schematic diagram of the fixture block installed in the guide rail for solar mounting.  FIG. 4  is the schematic diagram of the outer-hexagonal part installed in the guide rail for solar mounting. From  FIG. 3  and  FIG. 4  it can be known that the guide rail can solve the fixing problem in different states, is installed flexibly, and is stable in structure. 
     The shape of the fixture block is not restricted in the invention, as long as the fixture block can be applied in the guide rail. For example, a plane is provided with a tip  26 , capable of puncturing the oxide membrane on the guide rail, on the face contacting the guide rail, which can achieve the earthing function. An earthed fixture block with a new shape will be described as follows, and the fixture block with the new shape is a preferred structure applied in the guide rail, but not to limit the scope of the invention. As shown in  FIG. 5 , the fixture block comprises a fixture block body  2  that is composed of a bottom face  21  and four side faces. The four side faces are first side face  22 , second side face  23 , third side face  24  and fourth side face  25  respectively, wherein the bottom face  21  and the four side faces are integrally formed, and the both bottom face and the side faces are made of stainless steel material. The side faces are arranged pairwise symmetrically; the two side faces that are arranged symmetrically are identical in shape, that is, tips  26  for puncturing the oxide membrane on the guide rail are arranged on at least one pair of symmetrically arranged side faces. In the embodiment, the first side face  22  and the third side face  24  are selected to provide with first tips  26  respectively. For another pair of side faces, the second side face  23  and the fourth side face  25  have planar tops. The role of the tip  26  is to puncture the oxide membrane on the guide rail during installation to achieve earthing and improving safety. Therefore, in order to ensure that at least one first tip  26  can puncture the oxide membrane, more than two first tips  26  are arranged. In the embodiment, three first tips  26  identical in height are arranged and regularly ranked on the tops of the first side face  22  and the third side face  24 . In order to facilitate installation of the fixture block, the second side face  23  and the fourth side face  25  are higher than the first side face  22  and the third side face  24 . In the embodiment, the connection between the bottom face  21  and each side face has a curved transition, which is also used to facilitate installation. A hollow boss  27  for fixing is arranged in the middle of the bottom face  21 , wherein the hollow boss  27  is provided with internal threads, and the fixture block is connected with other spare parts through the hollow boss  27 . In the process of fixing, the guide rail is punctured by the side face with the first tip  26 , which achieves the earthing function, so that equipment is installed more conveniently and safely. 
       FIG. 6  is the reference diagram  1  for application of the fixture block. 
     A bolt passes through the hollow boss  27  and the side press block  3 . A fixed block  28  is connected with the side press block  3  through the bolt, and a gasket  29  for puncturing the oxide membrane on the side press block  3  is provided between the fixed block  28  and the side press block  3 , thus achieving integral earthing. 
     As shown in  FIG. 7 , the side press block  3  is composed of a first panel  31 , a second panel  32  and a third panel  33 . The first panel  31  is fixedly connected with the second panel  32 , and the third panel  33  is fixedly connected with the first panel  31 . The first panel  31 , second panel  32  and third panel  33  form a “Z” shape. In the embodiment, the first panel  31 , second panel  32  and third panel  33  are integrally formed. In order to increase the application frequency of the side press block and reduce material waste, at least a puncturing tip  34  for puncturing the oxide membrane on the frame of a solar panel is provided on the first panel  31 , and the puncturing tip  34  is made of stainless steel material. As shown in  FIG. 8 , the puncturing tip  34  is embedded on the first panel  31  with a tip provided at the exterior of the first panel  31 , so that the puncturing tip  34 , when the side press block  3  is used, can contact the frame of the solar panel to puncture the oxide membrane on the frame of the solar panel, and then is earthed. The improvement is that: the form of puncturing of oxide membrane on the back in the previous art is changed into the form of puncturing oxide membrane on the front in the invention, which reduces the original sheet parts for puncturing oxide membrane on the back. The original sheet part for puncturing the back deforms after one time of application and cannot be used repeatedly, which results in material waste. The invention is of puncturing the front, a puncturing tip  34  is provided on the first panel  31  of the side press block  3 , which reduces the application frequency of sheet parts, saves material and reduces waste caused by sheet parts that are discarded upon one time of application. The puncturing tip can be used repeatedly, and is convenient for installation and application. Meanwhile, in order to improve the effect of puncturing the front and prevent unavailable earthing problem caused by deformed solar panel, at least two puncturing tips  34  are provided on the first panel  31 . In the embodiment, two puncturing tips are selected. Of course, a person skilled in the art can set three or more puncturing tips  34  according to the actual conditions. A first through hole  35  for fixing is provided on the third panel  33 . As shown in  FIG. 9  and  FIG. 10 ,  FIG. 9  is the reference diagram for application of the side press block  3 . a bolt passes through the first through hole  35 , and is fixedly connected with the first through hole  35 . The fixed block  28  is connected with the third panel  33  through a bolt, and a gasket  29  for puncturing the oxide membrane on the third panel  33  is provided between the fixed block  28  and the third panel  33 , thus achieving integral earthing. A fixture block  2  is provided below the bolt. Wherein, the gasket  29  is provided with a tip capable of puncturing the oxide membrane. A person skilled in the art can design gaskets with different shapes according to the puncturing effect. The gasket  29  used in the embodiment is composed of a circular ring  291  and a plurality of sheets  292  that are provided on the perimeter of the circular ring  291  and ranked in circular array. The horizontal included angle between the sheet  292  and the circular ring  291  is 1°-5°. For fixing the earthed side press block  3  on the frame of the solar panel better, anti-skid lines  36  are provided at the place where the side press block  3  contacts the frame of the solar panel. 
     As shown in  FIG. 11 , a medium press block comprises a medium press block body  4 . The medium press block body  4  comprises a panel  41  and a first bulge  42  that is located in the middle of the panel  41  and is fixedly connected with the panel  41 . The first bulge  42  is identical with the panel  41  in terms of longitudinal length. The panel  41  and the first bulge  42  in the embodiment are integrally formed, and both are made of stainless steel material. In order to increase the application frequency of the medium press block and reduce material waste, at least a puncturing tip  34  for puncturing the oxide membrane on the frame of the solar panel is provided on the panel  41 . The puncturing tip  34  is embedded on the panel  41  and at the exterior of the panel  41 , so that the puncturing tip  34 , when the medium press block is used, can contact the frame of the solar panel to puncture the oxide membrane on the frame of the solar panel, and then is earthed. The puncturing tip  34  fixed on the medium press block is in interference fit. In the invention, puncturing the front is used, and the puncturing tip  34  is provided on the panel  41  of the medium press block directly, which reduces the application frequency of sheet parts, saves material and reduces waste caused by sheet parts that are discarded upon one time of application. The puncturing tip can be used repeatedly, and is convenient for installation and application. Meanwhile, in order to improve the effect of puncturing the front and prevent unavailable earthing problem caused by deformed solar panel, at least two puncturing tips  34  are provided on the panel  41 . Two puncturing tips  34  are symmetrically provided on the panel  41 , so that the medium press block can be fixed stably. As from  FIG. 11 , it is known that the panel  41  is nearly square, four puncturing tips  34  are selected in the embodiment and are provided at four corners of the panel  41 , which can better ensure that four corners of the panel  41  contact the frame of the solar panel stably. Of course, a person skilled in the art can set six or more puncturing tips  34  according to the actual conditions. For installing the medium press block body  4 , a second through hole  44  penetrating the first bulge  42  is provided on the panel  41 . 
     As shown in  FIG. 12 ,  FIG. 12  is the reference diagram for application of the earthed medium press block. A bolt passes through the second through hole  44 , and is fixedly connected with the second through hole  44 . The fixed block  28  is connected with the medium press block body  4  through the bolt, and a gasket  29  for puncturing the oxide membrane on the panel  41  is provided between the fixed block  28  and the medium press block body  4 , thus achieving integral earthing. A fixture block  1  is provided below the bolt. Wherein, the gasket  29  is provided with a tip capable of puncturing the oxide membrane. A person skilled in the art can design gaskets with different shapes according to the puncturing effect. For fixing the earthed medium press block on the frame of the solar panel better, anti-skid lines  36 , located at both sides of the first bulge, are provided at the place where the medium press block contacts the frame of the solar panel. 
     The connecting piece between the guide rails for solar mounting is shown in  FIG. 13 . 
     The guide rails for solar mounting as shown in  FIG. 2  shall be connected together through the connecting piece as shown in  FIG. 13 . In order to ensure integral earthing of the guide rails for solar mounting, the functional requirement for the connecting piece is very high. 
     As shown in  FIG. 13 , the connecting piece  5  is composed of a panel  51  and a slot opening  52  matched with the nut rail  13  as shown in  FIG. 1 . A through hole for a fixed part  511  is provided on the panel. In general, two through holes are provided and are distributed at both ends of the panel  51 . A person skilled in the art can also provide more than two through holes according to the demand, so that the fixed part is fixed more firmly. 
     The operation steps include: 
     Connecting the connecting piece  5  together with two guide rails for solar mounting; placing the gasket  29  between the panel  51  and the fixed part  511 ; and tightening the fixed part  511  forcibly, so that the bottom of the fixed part  511  withstands the nut strip  16 . When the fixed part  511  contacts the nut strip  16 , the oxide membrane on the surface of the nut strip  16  will be punctured in the tightening process because of the effect of forces, thus achieving the function of earthing between the guide rails for solar mounting that are connected. Two solar mountings connected are shown in  FIG. 14 . 
     The above are only preferred embodiments of the invention and not to limit the invention. Any modification, equivalent replacement and improvement made within the range of the spirit and rule of the invention shall fall within the protection scope of the invention.