Steel frame structure for bridge

Abstract

The steel frame structure comprises more than one cross beam, each cross beam is composed of more than one splicing column, a wiring hole is formed in each splicing column, the wiring holes in the outer sides of the splicing columns on the two sides are sealed, the remaining wiring holes penetrate through the splicing columns, through holes are formed in the bottom face of the splicing column on the rightmost side, and through holes are formed in the bottom face of the splicing column on the rightmost side. A tensioning and fixing mechanism is installed at the lower end of each through hole, a sleeve is installed in each wiring hole in the leftmost side, a steel wire rope is welded and fixed in each sleeve, the other ends of the steel wire ropes penetrate through the wiring holes and the through holes one by one and are installed on the tensioning and fixing mechanism, the splicing columns are fixed in an inserted connection mode, fixing blocks are installed on the bottom faces of the splicing columns, and shaft holes are formed in the fixing blocks; the fixing blocks on the adjacent splicing columns abut against each other, and a pressing mechanism which enables the fixing blocks to be shrunk inwards is arranged in the fixing blocks. The device is simple in structure and easy to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge technical field, concretely relates to a steel frame structure for bridge. BACKGROUND

[0002] At present, in the bridge design, due to the requirement of geological conditions, navigation clearance and other factors, sometimes it is necessary to adopt large span, so the cable-stayed bridge and suspension bridge scheme are often adopted. But with the increase of span, the cost of cable-stayed bridge and suspension bridge will increase a lot.

[0003] The existing bridge structure is complex, the construction difficulty is big, and the material consumption is more, and the ordinary rural, suburban modernization construction is not perfect, in the area of the local people can only rely on the less cost, a small amount of manpower, simple tool, less time to build simple bridge, therefore urgently needs a kind of steel frame bridge structure of convenient traffic, reduces the time, guarantees the security of quick splicing. SUMMARY

[0004] The utility model relates to a steel frame structure for bridge to solve the problem in the above background.

[0005] The utility model is through following technical scheme to realize: a steel frame structure for bridge, including more than one crossbeam, the crossbeam is formed by more than one splicing column, is equipped with a wiring hole in splicing column, the outside wiring hole of both sides splicing column is sealed, and the remaining wiring hole is all set up and passes through splicing column, the bottom surface of the rightmost splicing column is equipped with the through -hole, and the through -hole lower end is installed with the tensioning fixed mechanism, the wiring hole of leftmost side is all installed with the sleeve pipe, and the sleeve pipe is all welded and fixed with the steel wire rope, and the other end of steel wire rope passes through wiring hole and through -hole one by one, is installed on the tensioning fixed mechanism, and is all inserted and fixed between splicing column, and the bottom surface of splicing column is installed with fixed block, and the fixed block is all equipped with the axle hole, and the fixed block on adjacent splicing column is resisted, and the fixed block is equipped with the compression mechanism that will be inwards tight fixed block.

[0006] As preferred technical scheme, the tensioning fixed mechanism all includes shell, reel, shaft, bearing, rotary plate and sleeve head, the shell is all installed on the bottom surface of crossbeam, and the through -hole is sealed, the reel is all set up in the shell, the shaft is all installed in the center hole of reel, the outer wall surface of shell is all equipped with mounting hole opposite the shaft, the bearing is all installed in mounting hole, the shaft is all installed in the inner ring of bearing, and the other end is all extended to the outside and is connected with rotary plate, the outer wall surface of shell is located the outside of bearing and is equipped with more than one first screw hole of annular structure distribution, the rotary plate is all equipped with second screw hole, the second screw hole is all connected with fixed bolt in screw thread, one end of fixed bolt is all inserted into corresponding first screw hole and is all connected with first screw hole in screw thread, the sleeve head is all installed at the center of rotary plate, and the other end of steel wire rope is all installed on reel.

[0007] As a preferred technical scheme, the pressing mechanisms all comprise a fixed rod, one or more pressing pipes and a rotating ring, the fixed rod is arranged through the shaft hole on the fixed block, the outer threads are arranged on the two ends of the fixed rod, the pressing pipes are sleeved on the two ends of the fixed rod, the inner threads are arranged on the inner wall surfaces of the pressing pipes, the pressing pipes are connected with the outer threads on the fixed rod through the inner threads, the opposite surfaces of the pressing pipes are abutted against the outer wall surfaces of the fixed blocks, the fixed blocks are clamped and fixed inwardly through the pressing pipes, and the rotating rings are installed outside the pressing pipes.

[0008] As a preferred technical scheme, the one or more positioning portions are outwardly protruded on one side surface of the cross beam, and the one or more positioning grooves are arranged on the other side surface of the cross beam.

[0009] As a preferred technical scheme, the left side surface of the remaining splicing columns is outwardly protruded to form an insertion portion except for the leftmost splicing column, the right side surface of the remaining splicing columns is arranged with a recess matched with the insertion portion except for the rightmost splicing column, and one end of the insertion portion is inserted into the recess.

[0010] The utility model discloses the beneficial effects are: the utility model discloses simple structure, and the cross section is composed of one or more splicing columns, and the splicing columns are directly fixed through the steel wire rope after splicing, and can be completed once, and the efficiency of combination is increased, and the cross beam is directly fixed through the pressing mechanism, and the efficiency of combination is further increased, and the operation is simple. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0012] Figure 1 It is the whole structure schematic diagram of the utility model;

[0013] Figure 2 It is the structure schematic diagram of the utility model in tensioning and fixing mechanism;

[0014] Figure 3 It is Figure 1 The partial sectional view of A-A in the utility model.

[0015] In the figure: sleeve - 1; Fixed rod - 2; Wiring hole - 3; Splicing column - 4; Insert part - 5; Compression tube - 6; Rotary ring - 7; Fixed block - 8; Through hole - 9; Reel - 10; Shell - 11; Shaft - 12; First screw hole - 13; Rotary plate - 14; Bearing - 15; Sleeve head - 16; With fixed screw - 17; Positioning groove - 19; Positioning part - 20; Steel wire rope - 21. DETAILED DESCRIPTION

[0016] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0017] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0018] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, set, or can be detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0019] As shown in Figure 1 , Figure 2 and Figure 3 , the steel frame structure for bridge use of the present application comprises one or more cross beams, the cross beam is composed of one or more splicing columns 4, each splicing column 4 is provided with a wiring hole 3 inside, the wiring holes on the outer sides of the two splicing columns 4 are sealed, the remaining wiring holes 4 are all arranged through the splicing column 4, the bottom surface of the rightmost splicing column 4 is provided with a through hole 9, a tensioning fixing mechanism is installed at the lower end of the through hole 9, a sleeve 1 is installed in each of the leftmost wiring holes 3, a steel wire rope 21 is welded and fixed in the sleeve 1, the other end of the steel wire rope 21 is sequentially threaded through the wiring hole 3 and the through hole 9, and is installed on the tensioning fixing mechanism. The splicing columns 4 are fixedly inserted between each other, the bottom surface of each splicing column 4 is provided with a fixed block 8, the fixed block 8 is provided with an axle hole, the fixed blocks 8 on the adjacent splicing columns 4 abut against each other, and the fixed block 8 is provided with a compression mechanism for inwardly compressing the fixed block 8.

[0020] In this embodiment, the tensioning fixing mechanism includes a shell 11, a reel 10, a shaft 12, a bearing 15, a rotating plate 14 and a sleeve head 16. The shell 11 is mounted on the bottom surface of the crossbeam and seals the through hole 9. The reel 10 is arranged in the shell 11. The shaft 12 is mounted in the center hole of the reel 10. The outer wall surface of the shell 11 opposite to the shaft 12 is provided with a mounting hole. The bearing 15 is mounted in the mounting hole. The middle of the shaft 12 is mounted in the inner ring of the bearing 15. The other end of the shaft 12 extends to the outside and is connected with the rotating plate 14. The outer wall surface of the shell 11 outside the bearing 15 is provided with more than one first screw hole 13 in the form of annular structure. The rotating plate 14 is provided with a second screw hole. The second screw hole is threadedly connected with a fixing bolt 17. One end of the fixing bolt 17 is inserted into the corresponding first screw hole 13 and is threadedly connected with the first screw hole 13. The sleeve head 16 is mounted at the center of the rotating plate 14. The other end of the steel wire rope 21 is mounted on the reel 10.

[0021] In this embodiment, the pressing mechanism includes a fixed rod 2, more than one pressing pipe 6 and a rotating ring 7. The fixed rod 2 passes through the shaft hole of the fixed block 8. The two ends of the fixed rod 2 outside are provided with external threads. The pressing pipe 6 is sleeved on the two ends of the fixed rod 2. The inner wall surface of the pressing pipe 6 is provided with internal threads. The pressing pipe 6 is connected with the external threads of the fixed rod 2 through the internal threads. The opposite surface of the pressing pipe 6 is abutted against the outer wall surface of the fixed block 8. The fixed blocks 8 are clamped and fixed inwardly through the pressing pipe 6. The rotating ring 7 is mounted on the outside of the pressing pipe 6.

[0022] In this embodiment, the one side surface of the crossbeam is outwardly protruded to form more than one positioning part 20. The other side surface of the crossbeam is provided with more than one positioning groove 19. The positioning part 20 on the crossbeam is inserted into the positioning groove 19 on the one side crossbeam. The positioning part and the positioning groove can connect the crossbeams and increase the bearing effect between the crossbeams.

[0023] In this embodiment, the left side surface of the remaining splicing columns is outwardly protruded to form an insertion part 5 except the leftmost splicing column 4. The right side surface of the remaining splicing columns is provided with a recess matched with the insertion part except the rightmost splicing column 4. One end of the insertion part 5 is inserted into the recess. The insertion part and the recess can effectively connect the splicing columns and form a whole between the splicing columns, thereby increasing the bearing effect.

[0024] When assembling, the recess of the corresponding splicing column is inserted into the insertion part on the splicing column, then the head of the electric drill is inserted into the sleeve head, and the rotating plate is rotated, the rotation of the rotating plate drives the shaft and the reel, the steel wire rope is tightened through the rotating reel, until the splicing columns are firmly resisted together to form a fixed cross beam, then the fixing bolt is screwed into the corresponding first screw hole, the rotating plate is effectively positioned, and the rotation of the reel is avoided, the above operation greatly facilitates the assembly of the cross beam, and when disassembling, the rotating plate is reversely rotated to loosen the steel wire rope, the splicing columns can be connected together through the steel wire rope, the falling of the splicing columns is avoided, and the splicing columns are folded between the splicing columns through the bending of the steel wire rope, so that the length is reduced, the transportation and carrying are facilitated.

[0025] The assembling of the cross beams is that the cross beams are resisted together, the positioning part is inserted into the positioning groove, then the fixing rod is inserted through the shaft hole, and the compression tube is screwed, after the compression tube is rotated, the opposite surfaces of the compression tube can be resisted on the fixing block, until the fixing block is clamped and fixed inward, the combination of the cross beams is completed, the above operation greatly increases the combination efficiency, and large instruments are not needed.

[0026] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any change or replacement without creative labor should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. A steel frame structure for a bridge, characterized by: It includes one or more crossbeams, which are composed of one or more splicing columns. There is a wiring hole inside the splicing columns, the outer wiring holes of the splicing columns on both sides are sealed, and the remaining wiring holes are set through the splicing columns. There are through holes on the bottom surface of the rightmost splicing column, and a tensioning and fixing mechanism is installed at the lower end of the through hole. There are sleeves installed in the leftmost wiring holes, and steel wire ropes are welded and fixed in the sleeves. The other end of the steel wire rope passes through the wiring holes and the through holes one by one and is installed on the tensioning and fixing mechanism. The splicing columns are plugged and fixed. There are fixed blocks installed on the bottom surface of the splicing columns, and the fixed blocks are provided with axial holes. The fixed blocks on adjacent splicing columns are abutted against each other, and the fixed blocks are provided with a clamping mechanism for tightening the fixed blocks inward.

2. The steel frame structure for a bridge according to claim 1, characterized in that: The tensioning and fixing mechanisms include a shell, a reel, a shaft, a bearing, a rotating plate and a sleeve head. The shells are installed on the bottom surface of the beam and the through holes are sealed. The reels are arranged in the shells, and the shafts are installed in the center holes of the reels. The outer wall surface of the shell is opposite to the shaft, and a mounting hole is provided. The bearings are installed in the mounting holes. The middle of the shaft is installed in the inner ring of the bearing, and the other end extends to the outside and is connected to the rotating plate. The outer wall surface of the shell is located on the outside of the bearing and is provided with more than one first screw hole distributed in a ring structure. The rotating plate is provided with a second screw hole, and the second screw hole is threadedly connected with a fixing bolt. One end of the fixing bolt is inserted into the corresponding first screw hole and is threadedly connected to the first screw hole. The sleeve heads are installed at the center of the rotating plate, and the other end of the wire rope is installed on the reel.

3. The steel frame structure for a bridge according to claim 2, characterized in that: The clamping mechanisms include a fixing rod, one or more clamping tubes and a rotating ring. The fixing rods are arranged through the axial holes on the fixed blocks. Both ends of the fixing rods located on the outside are provided with external threads. The clamping tubes are sleeved on both ends of the fixing rods. The inner wall surfaces of the clamping tubes are provided with internal threads. The clamping tubes are engaged with the external threads on the fixing rods through the internal threads. The opposite surfaces of the clamping tubes are against the outer wall surfaces of the fixed blocks. The fixed blocks are clamped inwardly by the clamping tubes, and the rotating rings are installed on the outside of the clamping tubes.

4. The steel frame structure for a bridge according to claim 3, characterized in that: One side surface of the crossbeam is protruded outward to form more than one positioning portion, and the other side surface of the crossbeam is provided with more than one positioning groove, and the positioning portions on the crossbeam are inserted into the positioning groove on one side of the crossbeam.

5. The steel frame structure for a bridge according to claim 4, characterized in that: Except for the splicing column on the far left, the left sides of the remaining splicing columns all protrude outward to form an inserting portion. Except for the splicing column on the far right, the right sides of the remaining splicing columns all have a recess matching the inserting portion, and one end of the inserting portion is inserted into the recess.

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