CN110880723A

CN110880723A - Cable bridge

Info

Publication number: CN110880723A
Application number: CN201911288541.8A
Authority: CN
Inventors: 陈岳平
Original assignee: China MCC5 Group Corp Ltd
Current assignee: China MCC5 Group Corp Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-03-13

Abstract

The invention discloses a cable bridge, which comprises a U-shaped bridge and a bridge cover plate, wherein cross rods are longitudinally arranged in the U-shaped bridge at equal intervals to divide the U-shaped bridge into a plurality of layers; the bottom surface of each layer is transversely provided with clamps at equal intervals to divide each layer into a plurality of rows, and each row is internally provided with a cable. Optimize former interior slot type crane span structure, according to cable laying's specification, number of piles, every layer quantity in former crane span structure, increase the horizontal pole and divide into several layers with the crane span structure in former crane span structure, set up cable fixture in every layer and cut off to ensure to have certain interval between the cable, make the crane span structure have sufficient heat dissipation ventilation space, avoid the heat dissipation that former crane span structure leads to, the difficult problem of hydrofuge.

Description

Cable bridge

Technical Field

The invention belongs to the field of cable engineering construction application, and particularly relates to a cable bridge.

Background

At present, in the construction of electrical engineering on a building construction site, strong-current and weak-current bridges are constructed by adopting inner groove type bridges, and the cable spacing is too small by adopting the bridge construction. The cable can generate heat after being electrified for a long time to heat up, and the heat dissipation of the cable can be influenced when the distance between the inner groove type bridge cable and the cable is too small; in addition, moisture in underground buildings, particularly cable ditches is large, the cable ditches are wet, and moisture between the cables and the support cannot be easily discharged due to too close distance.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the utility model provides a cable testing bridge, solved among the prior art problem that interior slot type testing bridge cable heat dissipation is poor, ventilation hydrofuge effect is poor.

The invention adopts the following technical scheme for solving the technical problems:

a cable bridge comprises a U-shaped bridge and a bridge cover plate, wherein cross rods are longitudinally arranged in the U-shaped bridge at equal intervals to divide the U-shaped bridge into a plurality of layers; the bottom surface of each layer is transversely provided with clamps at equal intervals to divide each layer into a plurality of rows, and each row is internally provided with a cable.

The side surface of the U-shaped bridge frame is longitudinally and symmetrically provided with cross rod fixing holes, and the bottom surface of the U-shaped bridge frame and the cross rods are transversely provided with clamp fixing holes.

The diameters of the cross rod fixing holes and the fixture fixing holes are 3-5 mm; the hole pitch of the fixture fixing holes is 5-7 mm.

Two ends of the cross rod are fixed with cross rod fixing holes in the side face of the U-shaped bridge frame through bolts.

The cross bar is made of stainless steel square tubes, the width of the cross bar is 40 mm-60 mm, and the height of the cross bar is 20 mm-40 mm.

The fixture is a hollow cup-shaped structure, the middle of the fixture is provided with an inwards concave cambered surface, and the cross sections of the two ends of the fixture are larger than that of the middle part of the fixture.

The main body of the clamp is made of stainless steel sheet with the thickness of 2 mm-4 mm.

The bottom of the fixture is provided with a preformed hole with the diameter of 3 mm-5 mm, and the fixture, the bridge and the cross bar are fixed by penetrating the preformed hole through bolts.

The four sides of the bridge cover plate are provided with corner flanges which are directly buckled on the U-shaped bridge.

The bridge cover plate is made of stainless steel sheet and has a thickness of 5-7 mm.

Compared with the prior art, the invention has the following beneficial effects:

1. optimize former interior slot type crane span structure, according to cable laying's specification, number of piles, every layer quantity in former crane span structure, increase the horizontal pole and divide into several layers with the crane span structure in former crane span structure, set up cable fixture in every layer and cut off to ensure to have certain interval between the cable, make the crane span structure have sufficient heat dissipation ventilation space, avoid the heat dissipation that former crane span structure leads to, the difficult problem of hydrofuge.

2. A plurality of holes are transversely formed in the bottom surfaces of the transverse rods and the bridge frame, so that the transverse position of the clamp can be conveniently adjusted according to the diameter of a cable, and the cable with various specifications can be conveniently applied.

Drawings

FIG. 1 is a schematic view of a cable tray according to the present invention.

FIG. 2 is a schematic view of a cable tray structure according to the present invention.

FIG. 3 is a schematic view of the cable tray cover and cross bar assembly of the present invention.

FIG. 4 is a cross-sectional view of the cable tray clamp of the present invention.

Wherein, the labels in the figure are: 1-U-shaped bridge frame; 2-bridge cover plate; 3-a cross bar; 4-a fixture; 5-a cable; 6-cross bar fixing bolt; 7-fixture fixing bolts; 8-fixture fixing holes.

Detailed Description

The structure and operation of the present invention will be further described with reference to the accompanying drawings.

In order to solve the problem that the original bridge frame does not separate the heat dissipation and the dehumidification difficulty caused by the cables, the scheme optimizes the original inner groove type bridge frame, and according to the specifications, the number of layers and the quantity of each layer of the laid cables in the original bridge frame, the cross rods are additionally arranged in the original bridge frame to divide the bridge frame into a plurality of layers, and cable clamps are arranged in each layer to be separated so as to ensure that certain intervals exist between the cables, so that the bridge frame has enough heat dissipation and ventilation spaces.

The specific embodiment, as shown in fig. 1 to 4:

a cable bridge comprises a U-shaped bridge and a bridge cover plate 2, wherein cross rods 3 are longitudinally arranged in the U-shaped bridge 1 at equal intervals to divide the U-shaped bridge 1 into a plurality of layers; clamps 4 are transversely arranged on the bottom surface of each layer at equal intervals to divide each layer into a plurality of rows, and a cable 5 is arranged in each row.

The side of the U-shaped bridge frame 1 is longitudinally and symmetrically provided with cross rod fixing holes, and the bottom surface of the U-shaped bridge frame 1 and the cross rod 3 are transversely provided with clamp fixing holes 8.

The diameters of the cross rod fixing holes and the fixture fixing holes 8 are 3-5 mm; the distance between the fixture fixing holes 8 is 5 mm-7 mm.

Two ends of the cross rod 3 are fixed with cross rod fixing holes in the side face of the U-shaped bridge frame 1 through cross rod fixing bolts 6.

The bottom of the clamp is provided with a clamp fixing hole 8 with the diameter of 3 mm-5 mm, and the clamp, the bridge and the cross bar are fixed by a clamp fixing bolt 7 penetrating through the clamp fixing hole 8.

The four sides of the bridge cover plate 2 are provided with corner flanges which are directly buckled on the U-shaped bridge.

In this embodiment, U type bridge frame adopts 4mm thick stainless steel sheet preparation, vertically every interval 1m set up the fixed round hole of diameter 4mm respectively in side and bottom surface respectively, and the side hole sets up along vertically, and every sets up 2 holes, and the bottom surface hole sets up along transversely, becomes row form, pitch-row 6mm to carry out fixture lateral position adjustment according to the cable diameter.

The bridge cover plate is made of 6mm thick stainless steel iron sheets, and corner flanges are arranged on four sides of the cover plate so as to be directly buckled on the U-shaped groove bridge.

The cross rod is made of stainless steel square tubes with the width of 50mm and the height of 30mm, the end portions of the cross rod and the side face of the bridge are fixed through bolts through preformed holes, and through holes are formed in the upper portion and the lower portion of the cross rod according to the preformed holes in the bottom face of the bridge and used for fixing and installing the clamping device.

The fixture is made of stainless steel sheets with the thickness of 3mm and is of a hollow structure with large ends and small middle, round holes with the diameter of 4mm are formed in the bottom of the fixture, and the fixture, the bridge and the cross rods are fixed through the fixture fixing bolts through preformed holes.

The specific using and mounting process of the cable bridge frame is as follows:

firstly, mounting a fixed support, assembling the fixed support components prepared in advance, and then mounting the fixed support components at the position where a bridge frame needs to be mounted;

secondly, assembling the U-shaped groove, namely manufacturing a U-shaped groove main body by adopting stainless steel sheets with the thickness of 4mm, respectively arranging fixing round holes with the diameter of 4mm on the side surface and the bottom surface at intervals of 1m in the longitudinal direction, arranging side surface holes along the longitudinal direction, arranging 2 holes on each surface, and arranging bottom surface holes along the transverse direction in rows with the hole pitch of 6 mm;

thirdly, installing a bottom layer fixture, namely installing the prefabricated fixture on the bottommost layer of the U-shaped groove, wherein the distance between the fixtures is determined according to the on-site cable specification, and the fixture is fixed through a bolt;

fourthly, a cross rod is arranged in the middle of the U-shaped groove, and two ends of the cross rod penetrate through the side wall of the U-shaped groove and holes in the cross rod through bolts and are fixed on the side wall of the U-shaped groove;

fifthly, installing an upper-layer fixture, installing the prefabricated fixture on the cross rod at certain intervals according to the specification of the cable, and fixing the fixture through a bolt;

sixthly, mounting the manufactured U-shaped groove on a bridge support and fixing;

seventhly, threading the cable, namely threading the cable between the clamps;

and eighthly, installing the bridge cover plate, covering the bridge cover plate above the U-shaped groove after the cable is threaded, and covering the folded edge of the cover plate above the U-shaped groove.

The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.

Claims

1. The utility model provides a cable bridge, includes U type crane span structure and crane span structure apron, its characterized in that: the U-shaped bridge frame is internally provided with cross rods at equal intervals in the longitudinal direction to divide the U-shaped bridge frame into a plurality of layers; the bottom surface of each layer is transversely provided with clamps at equal intervals to divide each layer into a plurality of rows, and each row is internally provided with a cable.

2. The cable tray of claim 1, wherein: the side surface of the U-shaped bridge frame is longitudinally and symmetrically provided with cross rod fixing holes, and the bottom surface of the U-shaped bridge frame and the cross rods are transversely provided with clamp fixing holes.

3. The cable tray of claim 2, wherein: the diameters of the cross rod fixing holes and the fixture fixing holes are 3-5 mm; the hole pitch of the fixture fixing holes is 5-7 mm.

4. The cable tray of claim 2, wherein: two ends of the cross rod are fixed with cross rod fixing holes in the side face of the U-shaped bridge frame through bolts.

5. The cable tray of claim 2, wherein: the cross bar is made of stainless steel square tubes, the width of the cross bar is 40 mm-60 mm, and the height of the cross bar is 20 mm-40 mm.

6. The cable tray of claim 1, wherein: the fixture is a hollow cup-shaped structure, the middle of the fixture is provided with an inwards concave cambered surface, and the cross sections of the two ends of the fixture are larger than that of the middle part of the fixture.

7. The cable tray of claim 6, wherein: the main body of the clamp is made of stainless steel sheet with the thickness of 2 mm-4 mm.

8. The cable tray of claim 6, wherein: the bottom of the fixture is provided with a preformed hole with the diameter of 3 mm-5 mm, and the fixture, the bridge and the cross bar are fixed by penetrating the preformed hole through bolts.

9. The cable tray of claim 1, wherein: the four sides of the bridge cover plate are provided with corner flanges which are directly buckled on the U-shaped bridge.

10. The cable tray of claim 9, wherein: the bridge cover plate is made of stainless steel sheet and has a thickness of 5-7 mm.