CN201011045Y

CN201011045Y - Primary and secondary beam of steel platform

Info

Publication number: CN201011045Y
Application number: CNU2007200685273U
Authority: CN
Inventors: 林明孝
Original assignee: WAP LOGISTIC EQUIPMENT (SHANGHAI) CO Ltd
Current assignee: World warehouse intelligent storage equipment (Shanghai) Limited by Share Ltd
Priority date: 2007-03-30
Filing date: 2007-03-30
Publication date: 2008-01-23
Anticipated expiration: 2017-03-30

Abstract

The utility model discloses a girder and beam for steel platform, which includes a main board and side boards which are positioned at upper and lower sides of the main board, wherein, ends of each side board of the girder and beam are bent facing to each other, in order to form flanging, the lower end of the flanging is bent to the back of the main board so as to form a hook; surface of the main board is a plane or a rough surface with multiple bending, the surface of the main board is provided with at least two rows of connecting holes. Under the circumstance of same load, comparing the girder and beam of the utility model with the existing one, the utility model is lighter and thinner, to save material, otherwise, the manufacture is simple, and the utility model is convenient for adjusting and installing, and can be used for steel structure construction such as steel platform.

Description

Steel platform primary and secondary beam

Technical field

The utility model relates to a kind of prefabricated beams of metal.

Background technology

The steel platform is with the upright steel structure platform that forms of cylinder group, the space is separated into two-layer, is used for storage or office.Existing steel platform primary and secondary beam is a section bar, as H shaped steel, channel-section steel, i iron etc., connection between girder and the secondary beam is welded by bonding pad and screw is fastening realizes, exists shortcomings such as production process is loaded down with trivial details, precision is difficult to assurance, weight is big, installation and transportation inconvenience.

Summary of the invention

Technical problem to be solved in the utility model is to provide the steel platform primary and secondary beam that a kind of materials are few, manufacturing is simple, easy for installation.

The technical solution of the utility model is that a kind of steel platform primary and secondary beam, described primary and secondary beam comprise mainboard and be positioned at the mainboard side plate of both sides up and down, wherein, the end of each side plate of primary and secondary beam bends in opposite directions, forms flanging, the lower end of flanging to the bending of the back side of mainboard, forms hook again; The surface of mainboard is the plane or the male and fomale(M﹠F) of bending repeatedly, is provided with at least two row connecting holes that are used to connect on the surface of mainboard.

Above-mentioned steel platform primary and secondary beam, wherein, when the surface of mainboard was the plane, the longitudinal cross-section of primary and secondary beam was a C shape.

Above-mentioned steel platform primary and secondary beam, wherein, when the surface of mainboard was male and fomale(M﹠F), described male and fomale(M﹠F) comprised first convex surface at the mainboard upside, at second convex surface and the concave surface between first convex surface and second convex surface of mainboard downside; On concave surface, be provided with the triplex row connecting hole, on first convex surface and second convex surface, respectively be provided with delegation's connecting hole; The longitudinal cross-section of described primary and secondary beam is a ∑ shape.

The beneficial effects of the utility model are: 1. the primary and secondary beam is one-body molded by milling train, makes easy; 2. be provided with a plurality of through holes on primary and secondary beam surface, be convenient to regulate and install; 3. have calibrated altitude, replaceability is strong; 4. under equal stressed load situation, primary and secondary beam of the present utility model is compared with existing primary and secondary beam, and is lighter and thinner, is convenient to installation and transportation, saved cost.

Description of drawings

Fig. 1 is the schematic perspective view of first kind of embodiment of steel platform primary and secondary beam of the present utility model;

Fig. 2 is the elevation of first kind of embodiment of steel platform primary and secondary beam of the present utility model

Fig. 3 is the schematic side elevation of Fig. 2;

Fig. 4 A～4B is respectively front view, left view and the vertical view of the connector that is used for steel platform primary and secondary beam connection of the present utility model;

Fig. 5 is the girder of first kind of embodiment of employing the utility model and the connection diagram of secondary beam;

Fig. 6 is the schematic side elevation of Fig. 5;

Fig. 7 is the schematic side elevation of second kind of embodiment of steel platform primary and secondary beam of the present utility model;

Fig. 8 is girder that adopts second kind of embodiment of the utility model and the connection diagram that adopts the secondary beam of first kind of embodiment of the utility model;

Fig. 9 is the schematic side elevation of Fig. 8.

The specific embodiment

The utility model will be further described below in conjunction with accompanying drawing.

Fig. 1 and Fig. 2 are respectively the schematic perspective view and the elevation of first kind of embodiment of primary and secondary beam of the present utility model.As shown in the figure, primary and secondary beam 1 of the present utility model comprises mainboard 11 and the

side plate

12,13 that lays respectively at the upper and lower both sides of mainboard 11.

Side plate

12 and 13 end bend each self-forming one

flanging

121 and 131 in opposite directions.Flanging 121 and 131 to the bending of the back side of mainboard 11, forms hook again.Mainboard 11 is the male and fomale(M﹠F) of more than one bending, and this male and fomale(M﹠F) comprises first convex surface 111 at the mainboard upside, at second convex surface 112 and the concave surface 113 between first convex surface 111 and second convex surface 112 of mainboard downside.The structure of this male and fomale(M﹠F) is spine folded from a side clockwise direction mainboard on mainboard surface, forms first convex surface 111; Folding along being parallel to being directed downwards of mainboard surface again, form concave surface 113; Then, folding along being parallel to being directed downwards of described mainboard surface again after the surface direction of clockwise direction mainboard is folding, form second convex surface 112 with first convex surface, 111 symmetries.The supporting capacity of this folding line design can increasing effectively girder or secondary beam.Have row's hexagonal hole 1a in the centre position of concave surface 113, respectively be provided with the circular hole 1h of two row horizontal parallel on the upper and lower bilateral symmetry ground of hexagonal hole 12.Preferably, each hexagonal hole 1a's is big or small identical, and the horizontal spacing between them equates; The size of each circular hole 1h is consistent, and the horizontal spacing between them equates.Fig. 3 shows the shape of longitudinal cross-section of the primary and secondary beam of present embodiment, and as shown in the figure, the longitudinal cross-section of steel platform primary and secondary beam 1 is a ∑ shape.

Fig. 4 A to Fig. 4 C shows front view, left view and the vertical view of the connector 2 that is used for primary and secondary beam connection of the present utility model respectively.Connector 2 is formed by the steel plate bending, and it comprises orthogonal first wing plate 21 and second wing plate 22.On first wing plate 21, the both sides of heart line X respectively respectively are provided with a circular hole 21h symmetrically therein; On second wing plate 22, the both sides of heart line Y respectively are provided with two circular hole 22h symmetrically therein.X and Y are two mutually orthogonal straight lines in the same plane.Wherein, size, spacing and the position of circular hole 22h on the circular hole 21h on first wing plate 21 and second wing plate 22, with size, spacing and the position corresponding matching of circular hole 1h on the primary and secondary beam 1, so that bolt can pass the circular hole of connector and the circular hole of primary and secondary beam with secondary beam is connected fastening with girder connector 2.Fig. 5 and Fig. 6 show the girder of first kind of embodiment of employing the utility model and the connection diagram of secondary beam.As shown in the figure, girder 31 and secondary beam 32 are the primary and secondary beam that longitudinal cross-section is a ∑ shape.Girder 31 and secondary beam 32 perpendicular quadratures, the two connects with connector 2.First wing plate 21 covers to be folded on the back side of girder 31, second wing plate 22 covers to be folded on the front of secondary beam 32, two circular hole 21h on first wing plate 21 and four circular hole 22h on second wing plate 22 correspond respectively to the position of the corresponding circle hole of girder 31 and secondary beam 32 just, as long as pass these circular holes and fastening with bolt, just girder 31 and secondary beam 32 can be coupled together.

Fig. 7 shows the lateral view of second kind of embodiment of primary and secondary beam of the present utility model.The difference of itself and first kind of embodiment is that the mainboard of primary and secondary beam 1A is the plane, and longitudinal cross-section is shaped as C shape.

Fig. 8 and Fig. 9 show girder that adopts second kind of embodiment of the utility model and the connection diagram that adopts the secondary beam of first kind of embodiment of the utility model.The longitudinal cross-section of girder 41 is a C shape, and the longitudinal cross-section of secondary beam 42 is a ∑ shape, and the two intersects vertically, and connects with connector 2.Its connected mode is identical with aforementioned connected mode.

Under equal stressed load situation, the steel using amount of steel platform primary and secondary beam of the present utility model is compared with existing steel platform primary and secondary beam and has been reduced 20%～30%, and lighter and thinner, is convenient to install and transportation, has saved cost.In addition, steel platform primary and secondary beam of the present utility model adopts the blanking of the whole volume of coil of strip, the integrated production technology of milling train, makes easy.

Though description of the present utility model combines certain embodiments, but it should be understood by one skilled in the art that the utility model is not limited to embodiment described here, and can carry out various modifications and variations and do not deviate from spirit and scope of the present utility model.

Claims

1. steel platform primary and secondary beam, described primary and secondary beam comprise mainboard and are positioned at the mainboard side plate of both sides up and down, it is characterized in that, the end of each side plate of described primary and secondary beam bends in opposite directions, form flanging, the lower end of described flanging to the bending of the back side of described mainboard, forms hook again; The surface of described mainboard is the plane or the male and fomale(M﹠F) of bending repeatedly, is provided with at least two row connecting holes that are used to connect on the surface of mainboard.

2. steel platform primary and secondary beam as claimed in claim 1 is characterized in that when the surface of described mainboard was the plane, the longitudinal cross-section of described primary and secondary beam was a C shape.

3. steel platform primary and secondary beam as claimed in claim 1, it is characterized in that, when the surface of described mainboard was male and fomale(M﹠F), described male and fomale(M﹠F) comprised first convex surface at the mainboard upside, at second convex surface and the concave surface between described first convex surface and described second convex surface of mainboard downside; On described concave surface, be provided with the triplex row connecting hole, on described first convex surface and described second convex surface, respectively be provided with delegation's connecting hole; The longitudinal cross-section of described primary and secondary beam is a ∑ shape.

4. steel platform primary and secondary beam as claimed in claim 3 is characterized in that, the structure of described male and fomale(M﹠F) is spine folded from a side clockwise direction mainboard on described mainboard surface, forms first convex surface; Folding along being parallel to being directed downwards of mainboard surface again, form a concave surface; Then, folding along being parallel to being directed downwards of described mainboard surface again after the surface direction of clockwise direction mainboard is folding, form second convex surface with the described first convex surface symmetry.