CN213636947U

CN213636947U - Aluminum alloy cabling rack

Info

Publication number: CN213636947U
Application number: CN202022560891.XU
Authority: CN
Inventors: 范本琼; 谢榕; 凡志远
Original assignee: Nanjing Amco Communication Engineering Co ltd
Current assignee: Nanjing Amco Communication Engineering Co ltd
Priority date: 2020-11-07
Filing date: 2020-11-07
Publication date: 2021-07-06
Anticipated expiration: 2030-11-07

Abstract

The application relates to the field of laying of communication cables, in particular to an aluminum alloy cabling rack which comprises two side beams, a plurality of cross beams and suspension beams, wherein the two side beams, the cross beams and the suspension beams are arranged in parallel; the corner connecting beam comprises an inner curved beam, an outer curved beam and an arc-shaped plate, wherein the inner curved beam and the outer curved beam are oppositely arranged on the upper surface of the arc-shaped plate close to the arc wall; the end part of the arc wall of the inner camber beam is connected with the edge beam through a connecting assembly; the end part of the arc wall of the outer camber beam is connected with the edge beam through a connecting component. The corner connecting beam increases the space at the corner of the cabling rack, so that the cables are attached to the cabling rack at the corner, and the possibility that the cables are separated from the cabling rack at the corner of the cabling rack is reduced.

Description

Aluminum alloy cabling rack

Technical Field

The application relates to the field of communication cable laying, in particular to an aluminum alloy cabling rack.

Background

The cabling rack is an auxiliary device for wiring in modern communication machine rooms, and is mainly used for indoor and outdoor wiring. Galvanized U-shaped steel is commonly used as a support for outdoor wiring, and aluminum alloy materials are commonly used as the support for indoor wiring. The aluminum alloy cabling rack has high strength, is convenient to install, has attractive appearance, and is widely used for laying cables of auxiliary communication machine rooms.

The utility model discloses a chinese utility model patent that grant publication number is CN209562064U discloses an aluminum alloy chute, this chute include crosspiece, boundary beam, hang and connect mounting, top mounting, and crosspiece and boundary beam are aluminum alloy material, and crosspiece horizontal direction perpendicular to boundary beam and both ends are equipped with the connection mounting, hang vertical direction perpendicular to boundary beam, it is equipped with the top mounting to hang the top. During installation, the crosspieces are fixedly connected between the two boundary beams through the connecting and fixing pieces, the hangers are connected with the boundary beams, the hangers are fixed on the top of a machine room through the top fixing pieces, and finally cables are erected on the installed cabling rack.

With respect to the related art in the above, the inventors consider that: when the cables are arranged, the direction of the cables needs to be changed according to the positions of the communication elements, most of the corners of the cabling rack in the related technology are right angles, and when the number of the cables is large, the cables are easy to stack at the corners, are staggered, even are separated from the cabling rack, and are inconvenient to overhaul.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the cable easily piles up in the corner, this application provides an aluminum alloy chute.

The application provides an aluminum alloy chute adopts following technical scheme:

an aluminum alloy cabling rack comprises two side beams, a plurality of cross beams and suspension beams, wherein the two side beams are horizontally arranged oppositely, the cross beams are connected between the two side beams, the side beams are connected with a machine room roof through the suspension beams, the aluminum alloy cabling rack also comprises corner connection beams and a connection assembly, and the corner connection beams are connected with the side beams through the connection assembly; the corner connecting beam comprises an inner curved beam, an outer curved beam and an arc-shaped plate, and the arc-shaped plate is connected between the inner curved beam and the outer curved beam; the inner camber beam is connected with the edge beam through a connecting assembly; the end part of the arc wall of the outer camber beam is connected with the edge beam through a connecting assembly.

By adopting the technical scheme, when the corner appears in the wiring, the corner connecting beam connects the two side beams at the corner, so that a larger space is reserved at the corner of the cable, the cable is attached to the cabling rack at the corner, and the possibility that the cable is separated from the cabling rack at the corner is reduced.

Optionally, the connecting assembly comprises a first fixing plate, a second fixing plate, a first threaded column, a second threaded column and a nut, one end of the first threaded column is connected with the first fixing plate, and the other end of the first threaded column sequentially penetrates through the side arc wall of the corner connecting beam and the second fixing plate and is in threaded connection with the nut; and one end of the second thread is connected with the first fixing plate, and the other end of the second thread column sequentially penetrates through the boundary beam and the second fixing plate and is in threaded connection with the nut.

Through adopting above-mentioned technical scheme, during the installation, the operator with turning tie-beam and boundary beam butt, connect turning tie-beam and boundary beam through first fixed plate, second fixed plate, first screw post and second screw post afterwards, first fixed plate and second fixed plate press from both sides the arc wall and the boundary beam of turning tie-beam tightly, are fixed in the corner tie-beam on the boundary beam effectively.

Optionally, the turning tie-beam includes a plurality of concatenation units, internal fixation subassembly and external fixation subassembly, the concatenation unit includes first camber beam, second camber beam and splice plate, the splice plate is connected between first camber beam and second camber beam, and is a plurality of first camber beam head and the tail concatenation forms outer camber beam, and is a plurality of second camber beam head and the tail concatenation forms interior camber beam, and is a plurality of the splice plate splices in order and forms the arc, and is adjacent connect through external fixation subassembly between the first camber beam, and is adjacent the second camber beam passes through internal fixation subassembly and connects.

By adopting the technical scheme, the number of splicing units can be increased or decreased by an operator, the corner radian of the corner connecting beam is controlled, and then the included angle of the two side beams is controlled to be matched with the corner angle of the cable, so that the cable is convenient to be attached to the cabling rack.

In the actual wiring process, radians at different corners are not consistent, and the spliced corner connecting beam increases the application range of the wiring rack.

Optionally, splicing columns are arranged on the opposite end walls of the adjacent splicing plates, and the axial direction of each splicing column is the same as the length direction of the straight wall of each splicing plate; and the other straight wall of the splicing plate is provided with a splicing groove matched with the splicing column, and the splicing groove is connected with the adjacent splicing column in a clamping and embedding manner.

Through adopting above-mentioned technical scheme, during the installation, the operator inlays the splice column card in the splice groove of adjacent splice plate, through splice column and splice groove concatenation cooperation between the two adjacent splice plates for turning tie-beam firm in connection, thereby make this chute can bear the cable steadily.

Optionally, the outer fixed subassembly is including connecting arc piece and fixing bolt, the lateral wall subsides of connecting the arc piece are located on the outer wall of adjacent first camber beam, fixing bolt wears to locate to connect arc piece and threaded connection on the outer arc wall of first camber beam.

Through adopting above-mentioned technical scheme, during the installation, the operator connects two adjacent concatenation units in order, utilizes connection arc piece and fixing bolt to fix the first camber beam of adjacent concatenation unit afterwards, connects the radian of arc piece and the outer arc wall laminating of first camber beam for the first camber beam firm in connection of two adjacent concatenation units.

Optionally, the internal fixation assembly includes a resisting bolt, a resisting block and two resisting columns, the inner wall of the resisting block close to the arc wall of the second curved beam is provided with a resisting groove, one end of the resisting column faces the side wall of the second curved beam, the other end of the resisting column penetrates through the resisting block and extends into the resisting groove, the two resisting columns are arranged oppositely from top to bottom, one end of the resisting column extending into the resisting groove is an inclined plane and faces the arc wall of the second curved beam, the arc wall of the second curved beam close to the end portion is provided with a first threaded hole, and the resisting bolt penetrates through the first threaded hole and is tightly contacted with the inclined plane of the resisting column.

By adopting the technical scheme, during installation, an installer firstly places the abutting block at the joint of the second curved beams of the adjacent splicing units, and then penetrates one end of the abutting bolt through the threaded hole and abuts against the inclined wall of the abutting column; an operator screws the abutting bolt tightly, so that the bolt abuts against the inclined wall of the abutting column, the abutting column slides in the direction far away from the sliding groove under the abutting force of the bolt, and finally the abutting plate abuts against the inner wall of the limiting arc plate of the adjacent splicing unit simultaneously, so that the second bent beams of the two splicing units are connected.

Optionally, the internal fixation assembly further comprises a cladding sleeve, the cladding sleeve comprises an increased thickness plate and two clamping plates, the clamping plates are arranged on the increased thickness plate oppositely, the tightening bolts sequentially penetrate through the arc walls of the increased thickness plate and the second bent beam and abut against the inclined wall of the tightening column, and the second bent beam and the splicing plate are clamped by the two clamping plates.

Through adopting above-mentioned technical scheme, when the installation internal fixation subassembly, support tight board and support the inner wall of tight spacing arc board under the effect of supporting tight bolt, spacing arc board has the trend of expanding outward, and two grip blocks of cladding cover play the connection fixed action to the spacing arc board of camber beam in the adjacent concatenation unit, and the cladding cover is with supporting tight board cooperation, plays the spacing arc board of adjacent concatenation unit firmly to be connected from the both sides of spacing arc board.

Optionally, a guide groove is formed in one side, close to the roof of the machine room, of the cross beam, and the length direction of the guide groove is the same as that of the cross beam.

Through adopting above-mentioned technical scheme, when walking the line, the cable is placed in the guide way, and the line direction of walking of cable is unanimous with the width direction of guide way, has increased the contact stability of cable with aluminum alloy chute, has reduced the cable and has walked the line in disorder.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the corner connecting beam increases the space at the corner of the cabling rack, so that the cable is attached to the cabling rack at the corner of the cabling rack, and the possibility that the cable is separated from the cabling rack at the corner of the cabling rack is reduced;

2. the corner connecting beam adopts a splicing mode, and an operator can flexibly increase and decrease the number of splicing units so as to adapt to different corner angles.

3. The splicing units are connected through the connecting mechanism, so that the connection is firm, the disassembly is convenient, and an operator can conveniently replace the damaged splicing units.

Drawings

FIG. 1 is a schematic view of an overall structure of an aluminum alloy chute according to an embodiment of the present application.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic structural diagram of a splicing unit, an inner fixing component and an outer fixing component in the embodiment of the application.

Fig. 4 is an exploded view of the splice bar and splice groove in an embodiment of the present application.

Fig. 5 is a schematic structural diagram of an external fixation assembly in an embodiment of the present application.

Fig. 6 is a schematic structural view of an internal fixation assembly in an embodiment of the present application.

Description of reference numerals: description of reference numerals: 1. a boundary beam; 11. a first connection hole; 2. a cross beam; 21. a guide groove; 3. a suspension beam; 4. a corner connecting beam; 41. an inner camber beam; 42. an outer camber beam; 43. mounting holes; 44. an arc-shaped plate; 5. a connecting assembly; 51. a first fixing plate; 52. a second fixing plate; 521. a second connection hole; 53. a first threaded post; 54. a second threaded post; 6. a splicing unit; 61. a first curved beam; 611. a second threaded hole; 62. a second curved beam; 621. a limiting arc plate; 622. a first threaded hole; 63. splicing plates; 631. splicing the columns; 632. splicing grooves; 71. an external fixation assembly; 711. connecting the arc sheets; 7111. a third connection hole; 712. fixing the bolt; 72. an internal fixation assembly; 721. tightly abutting against the bolt; 722. a propping block; 7221. abutting against the groove; 7222. a sliding hole; 723. tightly abutting against the column; 7231. a propping plate; 724. coating a sleeve; 7241. increasing the thickness of the plate; 7242. a clamping plate; 7243. and a fourth connecting hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses an aluminum alloy chute.

Example 1

Referring to fig. 1, the aluminum alloy cabling rack comprises two side beams 1 which are horizontally arranged oppositely, a plurality of cross beams 2 and suspension beams 3, wherein the cross beams 2 are vertically and fixedly connected between the two side beams 1, the side walls of the side beams 1 are fixedly connected with one ends of the suspension beams 3, and the other ends of the suspension beams 3 are fixedly connected with the roof of a machine room. During wiring, the cross beams 2 and the edge beams 1 are hung on the roof of the machine room by the hanging beams 3, and cables are spread on the cross beams 2.

Referring to fig. 1 and 2, the cabling rack further comprises a corner connecting beam 4 and a connecting assembly 5, wherein the corner connecting beam 4 comprises an inner bent beam 41, an outer bent beam 42 and an arc-shaped plate 44, and arc walls of the inner bent beam 41 and the outer bent beam 42 are both arc walls which are convenient to be attached to cables during cabling; the arc-shaped plate 44 is connected between the inner curved beam 41 and the outer curved beam 42, the end part of the arc wall of the inner curved beam 41 is fixedly connected with the end part of the boundary beam 1 through the connecting component 5, and the end part of the arc wall of the outer curved beam 42 is fixedly connected with the end part of the boundary beam 1 through the connecting component 5; when the cables are wired at the corners, the cables are spread on the arc-shaped plates 44, and the inner bent angles of the cables can be attached to the arc walls of the inner bent beams 41; the corner connecting beam 4 connects the edge beams 1 at the corners, so that the space at the corners is increased, cables can be attached to the cabling rack at the corners, and the possibility of cable staggering is reduced.

Referring to fig. 1 and 2, mounting holes 43 are formed in the end portions, close to the arc wall, of the inward bent beam 41 and the outward bent beam 42, and a first connecting hole 11 is formed in the side wall, close to the end portion, of the edge beam 1. The connecting assembly 5 comprises a first fixing plate 51, a second fixing plate 52, a first threaded column 53 and a second threaded column 54, wherein two second connecting holes 521 are formed in the second fixing plate 52 along the length direction of the second fixing plate; one end of the first threaded column 53 is vertically welded on the surface of one side of the first fixing plate 51 far away from the boundary beam 1, and the other end of the first threaded column 53 sequentially penetrates through the mounting hole 43 and the second connecting hole 521 and is in threaded connection with a nut; one end of the second screw column 54 is vertically welded to the surface of the first fixing plate 51 on the side close to the side beam 1, and the other end of the second screw column 54 sequentially passes through the first connecting hole 11 and the second connecting hole 521 and is threadedly connected with a nut.

When mounting, the operator abuts the ends of the inner bent beam 41 and the outer bent beam 42 against the end of the side beam 1, then passes the first threaded post 53 through the mounting hole 43 and one of the second connecting holes 521 in sequence and is threadedly connected to the nut, and then passes the second threaded post 54 through the first connecting hole 11 and the other second connecting hole 521 in sequence and is threadedly connected to the nut.

Referring to fig. 1, a guide groove 21 is arranged on one side of the cross beam 2 close to the roof of the machine room, the length direction of the guide groove 21 is the same as that of the cross beam 2, the side wall of the guide groove 21 extends outwards from the bottom of the groove in an inclined manner, and the guide groove 21 plays a role in guiding cables during routing.

The implementation principle of the embodiment 1 is as follows:

when in installation, an operator firstly fixes the cross beams 2 between the side beams 1 which are arranged in parallel at equal intervals, then fixes and connects the side beams 1 with the suspension beams 3, and then fixes and installs the suspension beams 3 on the top of the machine room;

subsequently, the operator passes the first screw column 53 through the mounting hole 43 and one of the second connecting holes 521 in sequence and is screwed with the nut, and then passes the second screw column 54 through the first connecting hole 11 and the other of the second connecting holes 521 in sequence and is screwed with the nut, so that the corner connecting beam 4 and the side beam 1 are fixed.

Example 2

Referring to fig. 4, the difference between the present embodiment and embodiment 1 is that the corner connecting beam 4 includes a plurality of splicing units 6, an outer fixing assembly 71 and an inner fixing assembly 72, each splicing unit 6 includes a first curved beam 61, a second curved beam 62 and a splicing plate 63, the splicing plate 63 is connected between the first curved beam 62 and the second curved beam 61, the arc walls of the first curved beam 61 and the second curved beam 62 are arc walls, the first curved beams 61 are connected and spliced end to form the outer curved beam 42, the second curved beams 62 are connected to end to form the inner curved beam 41, the side walls of the adjacent splicing plates 63 are sequentially spliced to form the arc plates 44, the first curved beams 61 are connected through the outer fixing assembly 71, and the second curved beams 62 are connected through the inner fixing assembly 72. In the actual wiring process, the radians at different corners are not consistent, the spliced corner connecting beam 4 enables the application range of the wiring rack to be larger, and an operator can increase or decrease the number of the splicing units 6, so that the corner connecting beam 4 can adapt to different corner angles

Referring to fig. 4 and 5, a straight wall of the splice plate 63 is provided with a splice post 631, and the axial direction of the splice post 631 is the same as the length direction of the straight wall of the splice plate 63; the other straight wall of the splice plate 63 is provided with a splice groove 632 adapted to the splice post 631, and the splice groove 632 is connected to the adjacent splice post 631 in an embedded manner.

During the installation, the operator with splice post 631 inlay card in the splice groove 632 of adjacent splice plate 63, through splice post 631 and splice groove 632 concatenation cooperation between two adjacent splice plates 63 for turning tie-beam 4 firm in connection, thereby make this chute can bear the cable steadily.

Referring to fig. 4 and 5, the external fixing component 71 includes a connecting arc piece 711 and a fixing bolt 712, a third connecting hole 7111 is formed in a side wall of the connecting arc piece 711 near an end portion, a second threaded hole 611 is formed in an end portion of the arc wall of the first bending beam 61, and the fixing bolt 712 is inserted into the third connecting hole 7111 and is in threaded connection with the second threaded hole 611.

Referring to fig. 6, the second curved beam 62 includes two limiting arc plates 621, one side of the arc wall of the second curved beam 62 is integrally connected to a side wall of one limiting arc plate 621, and the other side of the arc wall of the second curved beam 62 is connected to a side wall of the other limiting arc plate 621; the inner fixing assembly 72 comprises a resisting bolt 721, a resisting block 722, two resisting columns 723 and a coating sleeve 724, wherein a resisting groove 7221 is formed in the side wall of the resisting block 722 close to the arc wall of the second curved beam 62, the length direction of the resisting groove 7221 penetrates through the resisting block 722, sliding holes 7222 are formed in two opposite groove walls of the resisting groove 7221, one end of the resisting column 723 penetrates through the sliding hole 7222 and extends into the resisting groove 7221, the other end of the resisting column 723 extends to the inner wall of the limiting arc plate 621, one end of the resisting column 723 extending to the inner wall of the limiting arc plate 621 is welded with the resisting plate 7231, and the shape of the resisting plate 7231 is circular, so that the resisting column 723 and the limiting arc plate 621 are uniformly abutted; the end wall of one end, extending into the abutting groove 7221, of the abutting column 723 is an inclined wall, and the end wall, extending into the abutting groove 7221, of the abutting column 723 faces the inner arc wall of the second curved beam 62; the double-layer bending plate comprises a thickening plate 7241 and two clamping plates 7242 oppositely arranged on the side walls of the thickening plate 7241, the thickening plate 7241 is abutted to the outer arc wall of the second bending beam 62, and the two clamping plates 7242 clamp the splicing plate 63 and the second bending beam 62. The thickening plate 7241 is provided with a fourth connecting hole 7243, the arc wall of the second curved beam 62 near the end is provided with a first threaded hole 622, one end of the resisting bolt 721 sequentially passes through the fourth connecting hole 7243 and the first threaded hole 622 and extends into the resisting groove 7221, and one end of the resisting bolt 721 extending into the resisting groove 7221 is abutted to the inclined wall of the resisting column 723.

When an operator fixes and fixes the curved beam, the abutting block 722 is firstly placed at the joint of the adjacent second curved beams 62, so that the abutting block 722 is positioned between the two limiting arc plates 621, and the abutting groove 7221 faces the joint of the arc walls of the two second curved beams 62; subsequently, the operator sequentially passes the tightening bolt 721 through the fourth connecting hole 7243 and the first threaded hole 622, so that the tightening bolt 721 extends into the tightening groove 7221 and abuts against the inclined wall of the tightening post 723; at this time, the operator screws up the tightening bolt 721, and the end of the tightening bolt 721 abuts against the inclined wall of the tightening post 723, so that the tightening post 723 slides in a direction away from the tightening groove 7221, and finally the tightening post 723 abuts against the inner wall of the limiting arc plate 621 through the tightening plate 7231, and the two clamping plates 7242 both abut against the outer wall of the limiting arc plate, and the clamping plates 7242 are matched with the tightening plate 7231 to clamp the limiting arc plate 621 at the joint of the two second curved beams 62, so that the limiting arc plates 621 of the adjacent splicing units 6 are firmly connected from both sides of the limiting arc plate 621.

The implementation principle of the embodiment 2 is as follows: when the corner of cable is not the right angle, the operator changes the size at the corner of corner tie-beam 4 through the quantity that increases and decreases concatenation unit 6 to make the different corner demands of cable can be satisfied to the corner tie-beam 4 that the concatenation formed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an aluminum alloy chute, includes boundary beam (1), a plurality of crossbeam (2) and suspension beam (3) that two levels set up relatively, crossbeam (2) are connected between two boundary beam (1), boundary beam (1) is connected its characterized in that through suspension beam (3) and computer lab roof: the corner connecting beam is characterized by further comprising a corner connecting beam (4) and a connecting assembly (5), wherein the corner connecting beam (4) is connected with the edge beam (1) through the connecting assembly (5); the corner connecting beam (4) comprises an inner bending beam (41), an outer bending beam (42) and an arc-shaped plate (44), and the arc-shaped plate (44) is connected between the inner bending beam (41) and the outer bending beam (42); the inner camber beam (41) is connected with the edge beam (1) through a connecting component (5); the end part of the arc wall of the outer camber beam (42) is connected with the boundary beam (1) through a connecting component (5).

2. An aluminum alloy rack according to claim 1, wherein: the connecting assembly (5) comprises a first fixing plate (51), a second fixing plate (52), a first threaded column (53), a second threaded column (54) and a nut, one end of the first threaded column (53) is connected with the first fixing plate (51), and the other end of the first threaded column (53) sequentially penetrates through the side arc wall of the corner connecting beam (4) and the second fixing plate (52) and is in threaded connection with the nut; one end of the second threaded column (54) is connected with the first fixing plate (51), and the other end of the second threaded column (54) sequentially penetrates through the boundary beam (1) and the second fixing plate (52) and is in threaded connection with the nut.

3. An aluminum alloy rack according to claim 1, wherein: corner tie-beam (4) include a plurality of concatenation units (6), internal fixation subassembly (72) and external fixation subassembly (71), concatenation unit (6) include first camber beam (61), second camber beam (62) and splice plate (63), splice plate (63) are connected between first camber beam (61) and second camber beam (62), and are a plurality of first camber beam (61) end to end concatenation forms outer camber beam (42), and is a plurality of second camber beam (62) end to end concatenation forms interior camber beam (41), and is a plurality of splice plate (63) concatenation forms arc (44) in order, and are adjacent connect through external fixation subassembly (71) between first camber beam (61), and are adjacent second camber beam (62) connect through internal fixation subassembly (72).

4. An aluminum alloy rack according to claim 3, wherein: splicing columns (631) are arranged on the opposite end walls of the adjacent splicing plates (63), and the axial direction of the splicing columns (631) is the same as the length direction of the straight wall of the splicing plates (63); the other straight wall of the splicing plate (63) is provided with a splicing groove (632) matched with the splicing column (631), and the splicing groove (632) is connected with the adjacent splicing column (631) in a clamping and embedding manner.

5. An aluminum alloy rack according to claim 3, wherein: the outer fixing component (71) comprises connecting arc pieces (711) and fixing bolts (712), the side wall of each connecting arc piece (711) is attached to the outer wall of the adjacent first bent beam (61), and the fixing bolts (712) penetrate through the outer arc walls of the connecting arc pieces (711) and are in threaded connection with the first bent beams (61).

6. An aluminum alloy rack according to claim 3, wherein: the inner fixing component (72) comprises a resisting bolt (721), a resisting block (722) and two resisting columns (723), wherein the inner wall of the resisting block (722) close to the arc wall of the second curved beam (62) is provided with a resisting groove (7221), one end of the resisting column (723) faces the side wall of the second curved beam (62), the other end of the resisting column (723) penetrates through the resisting block (722) and extends into the resisting groove (7221), the two resisting columns (723) are arranged oppositely up and down, one end of the resisting column (723) extending into the resisting groove (7221) is an inclined plane and faces the arc wall of the second curved beam (62), the arc wall of the second curved beam (62) close to the end is provided with a first threaded hole (622), and the resisting bolt (721) penetrates through the first threaded hole (622) and is tightly contacted with the inclined plane of the resisting column (723).

7. An aluminum alloy rack according to claim 6, wherein: the internal fixation subassembly (72) still includes cladding cover (724), cladding cover (724) is including increasing thick plate (7241) and two grip blocks (7242), grip block (7242) set up relatively on increasing thick plate (7241), support tight bolt (721) wear to locate the arc wall that increases thick plate (7241) and second camber beam (62) in proper order and with support the skew wall butt of tight post (723), two grip block (7242) are with second camber beam (62) and splice plate (63) centre gripping.

8. An aluminum alloy rack according to claim 1, wherein: one side that crossbeam (2) are close to the computer lab roof is equipped with guide way (21), the length direction of guide way (21) is the same with the length direction of crossbeam (2).