CN219117926U

CN219117926U - Steel box girder of large-span internal-pass circuit

Info

Publication number: CN219117926U
Application number: CN202320276864.0U
Authority: CN
Inventors: 蓝昭明; 石傲寒; 赵宇航; 王喆睿; 张卫东; 曹高语
Original assignee: Henan Zhongding Zhijian Technology Co ltd
Current assignee: Henan Zhongding Zhijian Technology Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-06-02
Anticipated expiration: 2033-02-22

Abstract

The utility model relates to the technical field of steel box girders, in particular to a large-span steel box girder with an internal circuit, which comprises a steel box girder box body, wherein a top plate is fixedly connected to the top of the steel box girder box body, a plurality of longitudinal partition plates are fixedly connected between the inner wall of the steel box girder box body and the top plate, and a plurality of guide strip-shaped holes are formed in the surfaces of the longitudinal partition plates. The utility model has the advantages that: through fixed flexible hose at the both ends of threading pipe, can be according to the flexible hose of wire arrangement penetration and direction of wearing out, the penetration passageway smooth bending that makes the wire wear out, it is smooth excessive still to make the wire when being convenient for the wire import, prevent that the wire right angle from bending, improve the life of wire, can fix the fixed height of threading pipe on the direction bar hole through lock nut tightening, thereby can adjust the fixed height of threading pipe as required, improve the suitability of circuit arrangement, can be according to the high adjustment threading pipe of circuit exhaust, the practicality is improved.

Description

Steel box girder of large-span internal-pass circuit

Technical Field

The utility model relates to the technical field of steel box girders, in particular to a large-span steel box girder with an internal-pass circuit.

Background

The steel box girder, also called as steel plate box girder, is a common structural form of a large-span bridge, is generally used on a bridge with a large span, and is called as a steel box girder because of the appearance of a box. Because the steel box girder is used as an important large structural member, the structural design and the construction procedure of the steel box girder are all problems concerned by practitioners, and the structural design of the steel box girder can be adjusted correspondingly according to different construction projects. The steel box girder relates to a large amount of welding work during installation, and the welding machine needs the power supply to use, however most job sites are electric wires and are placed in disorder, accidents can occur due to carelessness, and the safety of constructors can not be ensured, so that aiming at the phenomenon, the design of a through circuit in the steel box girder is necessary while the large-span design is ensured.

In the chinese utility model CN211256622U, a steel box girder of a large-span internal circuit is disclosed, the steel box girder of the large-span internal circuit is provided with a line pipe on a diaphragm plate, so that a wire is conveniently penetrated, the height of the line pipe is not more than 1 meter, so that an operator can conveniently operate, the welded construction parts are arranged at the front end and the rear end of the steel box girder, the distance of the line pipe is too far, so that the construction is inconvenient, but the steel box girder of the large-span internal circuit has the following problems in use:

the steel box girder of the large-span inner-pass circuit has the advantages that the wire tube is a hard straight tube, after the wire passes out, if the wire needs to be bent up, down, left and right, the wire can be directly bent at the edge of the wire tube, the edge of the wire tube is lack of arc transition, the wire tube is easy to bend and break or the wire skin is damaged after long-time use, the height of the wire tube cannot be adjusted, and different wire arrangement requirements cannot be met.

Disclosure of Invention

The object of the present utility model is to solve at least one of the technical drawbacks.

Therefore, an object of the present utility model is to provide a steel box girder of a large-span internal-pass circuit, which solves the problems mentioned in the background art and overcomes the disadvantages of the prior art.

In order to achieve the above object, an embodiment of an aspect of the present utility model provides a steel box girder of a large-span internal circuit, which comprises a steel box girder box body, wherein a top plate is fixedly connected to the top of the steel box girder box body, a plurality of longitudinal separation plates are fixedly connected between the inner wall of the steel box girder box body and the top plate, a plurality of guide strip-shaped holes are formed in the surfaces of the longitudinal separation plates, threading pipes are slidably connected to the inner walls of the guide strip-shaped holes, a baffle is fixedly connected to one side of the outer wall of each threading pipe, a locking nut is screwed to the other side of the outer wall of each threading pipe, the baffle and the locking nut are respectively located on two side surfaces of the longitudinal separation plates, flexible hoses are fixedly connected to two ends of each threading pipe, and one end, far away from each threading pipe, of each flexible hose is fixedly connected with flexible wrapping edges.

By above-mentioned arbitrary scheme preferably, a plurality of longitudinal baffle and steel case roof beam box between the box respectively fixedly connected with a plurality of diaphragm, a plurality of the through-hole has all been seted up to the center department of diaphragm, a plurality of the top surface and the bottom surface of diaphragm respectively with roof bottom surface and the bottom surface fixed connection of steel case roof beam box inner wall.

The technical effect achieved by adopting the scheme is as follows: the cable is convenient for penetrate through the through-hole, can reduce the weight of diaphragm simultaneously, reduces the dead weight of whole roof beam body.

By any of the above schemes, preferably, the center of the through holes in the middle of the diaphragm plates is fixedly connected with a cable frame, and the top surface of the cable frame is provided with a plurality of cable brackets.

The technical effect achieved by adopting the scheme is as follows: through the cable bracket on the cable frame, the main cable of wiring can be erect to the cable bracket, is convenient for erect of main cable.

By the scheme of above-mentioned arbitrary preferably, a plurality of the top and the bottom of longitudinal baffle all fixedly connected with stiffener, stiffener sets up perpendicularly with longitudinal baffle, longitudinal baffle passes through stiffener and roof and the inner wall fixed connection of steel case roof beam box.

The technical effect achieved by adopting the scheme is as follows: the connecting area of the longitudinal partition plates, the top plate and the steel box girder box body can be increased through the reinforcing plates, the connecting stability is improved, and the strength is improved.

By any of the above schemes, preferably, the diameter of the outer wall of the threading pipe is matched with the width of the guide strip-shaped hole, and the diameters of the baffle and the lock nut are both larger than the width of the guide strip-shaped hole.

The technical effect achieved by adopting the scheme is as follows: after the locking nut is tightened, the locking nut can be matched with the baffle plate to clamp the longitudinal baffle plate, so that the clamping and fixing are realized, and the height of the threading pipe is fixed.

In any of the above embodiments, preferably, a rubber liner is fixedly connected to an inner wall of a joint between the flexible hose and the threading pipe.

The technical effect achieved by adopting the scheme is as follows: the rubber lining can prevent the edge corners of the edge of the threading pipe from cutting the wires, and the protection effect is improved.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. this steel case roof beam of large-span internal circuit, through at the fixed flexible hose in the both ends of threading pipe, can penetrate and the flexible hose of flexible bending of direction is worn out according to the electric wire arrangement, make the wear out of electric wire penetrate the passageway smooth bending, still make the complete smooth transition of electric wire when being convenient for the electric wire lead-in, prevent that the electric wire from bending at right angles, improve the life of electric wire.

2. This steel case roof beam of large-span internal connection circuit can fix the fixed height of threading pipe on the direction bar hole through lock nut tightening to can adjust the fixed height of threading pipe as required, can improve the suitability that the circuit was arranged like this, can be according to the high adjustment threading pipe of circuit exhaust, improve the practicality.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

fig. 3 is a schematic view of the structure of the threading pipe of the present utility model.

In the figure: the steel box girder comprises a 1-steel box girder body, a 2-top plate, a 3-longitudinal partition plate, a 4-stiffening plate, a 5-transverse partition plate, a 6-through hole, a 7-cable rack, an 8-cable bracket, a 9-guide strip-shaped hole, a 10-threading pipe, an 11-baffle plate, a 12-locking nut and a 14-flexible hose.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following.

Embodiment one: as shown in fig. 1 to 3, a steel box girder of a large-span internal-pass circuit comprises a steel box girder box body 1, wherein a top plate 2 is fixedly connected to the top of the steel box girder box body 1, a plurality of longitudinal partition plates 3 are fixedly connected between the inner wall of the steel box girder box body 1 and the top plate 2, a plurality of guide strip-shaped holes 9 are formed in the surfaces of the longitudinal partition plates 3, threading pipes 10 are slidably connected to the inner walls of the guide strip-shaped holes 9, a baffle 11 is fixedly connected to one side of the outer wall of each threading pipe 10, a locking nut 12 is connected to the other side of the outer wall of each threading pipe 10, the baffle 11 and the locking nut 12 are respectively located on two side surfaces of the longitudinal partition plates 3, flexible hoses 14 are fixedly connected to two ends of each threading pipe 10, and flexible edges are fixedly connected to one ends, far away from the threading pipes 10, of the flexible hoses 14.

As an alternative technical scheme of the utility model, a plurality of diaphragm plates 5 are fixedly connected between a plurality of longitudinal diaphragm plates 3 and a steel box girder box body 1 respectively, through holes 6 are formed in the centers of the diaphragm plates 5, the top surfaces and the bottom surfaces of the diaphragm plates 5 are fixedly connected with the bottom surfaces of a top plate 2 and the bottom surfaces of the inner walls of the steel box girder box body 1 respectively, cables can be conveniently penetrated through the through holes 6, meanwhile, the weight of the diaphragm plates 5 can be reduced, and the dead weight of the whole girder body is reduced.

As an alternative technical scheme of the utility model, the cable brackets 7 are fixedly connected to the centers of the through holes 6 in the middle parts of the transverse baffles 5, a plurality of cable brackets 8 are arranged on the top surfaces of the cable brackets 7, and a main cable of wiring can be erected to the cable brackets 8 through the cable brackets 8 on the cable brackets 7, so that the main cable can be conveniently erected.

As an alternative technical scheme of the utility model, the top and the bottom of the longitudinal partition plates 3 are fixedly connected with the reinforcing plates 4, the reinforcing plates 4 are vertically arranged with the longitudinal partition plates 3, the longitudinal partition plates 3 are fixedly connected with the top plate 2 and the inner wall of the steel box girder box body 1 through the reinforcing plates 4, the connection area of the longitudinal partition plates 3 with the top plate 2 and the steel box girder box body 1 can be increased through the reinforcing plates 4, the connection stability is improved, and the strength is improved.

As an alternative technical scheme of the utility model, the diameter of the outer wall of the threading pipe 10 is matched with the width of the guide strip-shaped hole 9, and the diameters of the baffle plate 11 and the lock nut 12 are both larger than the width of the guide strip-shaped hole 9, so that the lock nut 12 can be matched with the baffle plate 11 to clamp the longitudinal baffle plate 3 after being tightened, thereby realizing clamping and fixing and realizing the height fixing of the threading pipe 10.

As an alternative technical scheme of the utility model, the inner wall of the joint of the flexible hose 14 and the threading pipe 10 is fixedly connected with a rubber lining, the rubber lining can prevent the edge corners of the edge of the threading pipe 10 from cutting wires, the protection effect is improved, and the flexible hose 14 and the threading pipe 10 are made of insulating materials, so that the safety can be improved.

A steel box girder of a large-span internal-pass circuit has the following working principle:

1) The main cable of the wiring can be erected to the cable bracket 8 through the cable bracket 8 on the cable bracket 7, so that the main cable can be conveniently erected;

2) Then, the electric wires on the main cable penetrate into a plurality of spaces separated by the longitudinal partition plates 3 through the threading pipes 10, so that the electricity consumption requirement of each space is met;

3) The flexible hose 14 is flexibly bent according to the wire arrangement penetrating and penetrating directions during threading, so that a penetrating-out penetrating channel of the wire is smoothly bent, the wire is led in conveniently, meanwhile, the wire is completely smoothly and excessively bent, the wire is prevented from being bent at right angles, and the service life of the wire is prolonged;

4) Meanwhile, according to the electricity utilization height, the fixing height of the threading pipe 10 on the guide strip-shaped hole 9 can be fixed by tightening the locking nut 12, so that the fixing height of the threading pipe 10 can be adjusted according to the requirement, and the applicability of circuit arrangement is improved.

In summary, this steel box girder of large-span internal circuit, through fixed flexible hose 14 at the both ends of threading pipe 10, can pass through and pass through flexible hose 14 in a flexible way according to the electric wire arrangement, make the pass through passageway smooth bending of passing through of electric wire, still make the complete smooth transition of electric wire when being convenient for the electric wire lead-in, prevent the electric wire right angle bending, improve the life of electric wire, the fixed height of threading pipe 10 on direction bar hole 9 can be fixed in the rethread lock nut 12 tightening, thereby can adjust the fixed height of threading pipe 10 as required, can improve the suitability of circuit arrangement like this, can adjust the height of threading pipe 10 according to the high adjustment of circuit discharge, the practicality has been improved.

Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A steel box girder of large-span internal-pass circuit, its characterized in that: including steel case roof beam box (1), the top fixedly connected with roof (2) of steel case roof beam box (1), fixedly connected with is a plurality of longitudinal baffle (3) between steel case roof beam box (1) inner wall and roof (2), a plurality of guide bar hole (9) have been seted up on the surface of longitudinal baffle (3), a plurality of the equal sliding connection of inner wall in guide bar hole (9) has threading pipe (10), one side fixedly connected with baffle (11) of threading pipe (10) outer wall, the opposite side threaded connection of threading pipe (10) outer wall has lock nut (12), baffle (11) and lock nut (12) are located the both sides face of longitudinal baffle (3) respectively, the equal fixedly connected with flexible hose (14) in both ends of threading pipe (10), the one end fixedly connected with flexible edge of keeping away from threading pipe (10) of flexible hose (14).

2. A steel box girder of a large span internal pass circuit according to claim 1, wherein: a plurality of diaphragm plates (5) are fixedly connected between the longitudinal diaphragm plates (3) and the steel box girder box body (1) respectively, through holes (6) are formed in the centers of the diaphragm plates (5), and the top surfaces and the bottom surfaces of the diaphragm plates (5) are fixedly connected with the bottom surfaces of the top plate (2) and the bottom surfaces of the inner walls of the steel box girder box body (1) respectively.

3. A steel box girder of a large span internal pass circuit according to claim 2, characterized in that: the cable rack (7) is fixedly connected to the centers of the through holes (6) in the middle of the diaphragm plates (5), and a plurality of cable brackets (8) are arranged on the top surfaces of the cable racks (7).

4. A steel box girder of a large span internal pass circuit according to claim 3, wherein: the top and the bottom of a plurality of longitudinal partition plates (3) are fixedly connected with reinforcing plates (4), the reinforcing plates (4) are vertically arranged with the longitudinal partition plates (3), and the longitudinal partition plates (3) are fixedly connected with the top plate (2) and the inner wall of the steel box girder box body (1) through the reinforcing plates (4).

5. A steel box girder of a large span internal pass circuit according to claim 4, wherein: the diameter of the outer wall of the threading tube (10) is matched with the width of the guide strip-shaped hole (9), and the diameters of the baffle (11) and the locking nut (12) are both larger than the width of the guide strip-shaped hole (9).

6. A steel box girder of a large span internal pass circuit according to claim 5, wherein: the inner wall of the joint of the flexible hose (14) and the threading tube (10) is fixedly connected with a rubber lining.