CN215366769U

CN215366769U - Cable installation part for bridge frame

Info

Publication number: CN215366769U
Application number: CN202120101620.XU
Authority: CN
Inventors: 肖新波; 刘楠
Original assignee: Central and Southern China Municipal Engineering Design and Research Institute Co Ltd
Current assignee: Central and Southern China Municipal Engineering Design and Research Institute Co Ltd
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-12-31
Anticipated expiration: 2031-01-14

Abstract

The utility model provides a cable mounting piece for a bridge, which comprises: the cable fixing device comprises a rubber sleeve, two cable fixing components, two fixing blocks and a pull rope, wherein the rubber sleeve is coated outside a cable, and two ends of the cable extend out of the rubber sleeve and are fixed through the cable fixing components; one fixing block is positioned at the upper part of the rubber sleeve, the bottom end surface of the fixing block is connected with the upper end of the pull rope, the other fixing block is connected to the cable fixing component positioned at the lower part of the cable through a screw, and the lower end of the pull rope is fixed on the fixing block positioned on the cable fixing component; wherein, the upper end and the lower end of the rubber sleeve are respectively in threaded connection with the two cable fixing assemblies. The advantages are that: when the rubber sleeve needs to be disassembled or replaced, the rubber sleeve on the cable is convenient to disassemble, the operation is convenient, the maintenance cost is low, and the working efficiency is high.

Description

Cable installation part for bridge frame

Technical Field

The utility model relates to the technical field of energy storage systems, in particular to a cable mounting piece for a bridge.

Background

The cable of the bridge is a main bearing structure of modern large-span bridges, such as suspension bridges, cable-stayed bridges and arch suspension bridges, and can also be called a life cable of the bridge. The cable bears dynamic load and static load for a long time, is exposed in the environment of wind, rain, moisture and polluted air, is easily corroded and damaged by stress corrosion, fatigue corrosion and metal corrosion, and once the cable is corroded, the consequences are unreasonable. The existing examples of bridge cable failure at home and abroad cause serious safety accidents and economic losses, and the cable is required to be protected against corrosion. At present, the bridge cable body protection is mainly a protection method similar to the electric wire and cable technology, such as a parallel steel wire cable protected by a hot extrusion high-density polyethylene sheath and a parallel steel strand cable protected by a high-density polyethylene sleeve. In practical use, the polyethylene gradually absorbs ultraviolet rays in sunlight, so that the main chain of the high polymer material is broken, a series of oxidative degradation reactions are caused, and the protection time is generally 20-30 years. In addition, considering that the cable replacement, the wrapping, the coating maintenance and the maintenance cost are high, the service requirement of 50 years of service life provided by the design of a bridge cable sheath is difficult to achieve, therefore, the sleeve needs to be regularly maintained or replaced, but the existing sleeve is installed outside the cable when the cable is installed, and the cable needs to be detached for replacement when the cable needs to be replaced or maintained, so that the workload is high, and the maintenance cost is high. .

SUMMERY OF THE UTILITY MODEL

The utility model provides a cable mounting part for a bridge, which aims to overcome at least one technical defect, reduce design and process cost and facilitate accurate mounting.

In order to realize the purpose of the utility model, the utility model provides the following technical scheme:

a cable mount for a bridge, comprising: the cable fixing device comprises a rubber sleeve, two cable fixing components, two fixing blocks and a pull rope, wherein the rubber sleeve is coated outside a cable, and two ends of the cable extend out of the rubber sleeve and are fixed through the cable fixing components; one fixing block is positioned at the upper part of the rubber sleeve, the bottom end surface of the fixing block is connected with the upper end of the pull rope, the other fixing block is connected to the cable fixing component positioned at the lower part of the cable through a screw, and the lower end of the pull rope is fixed on the fixing block positioned on the cable fixing component;

wherein, the upper end and the lower end of the rubber sleeve are respectively in threaded connection with the two cable fixing assemblies.

Preferably, the cable fixing assembly comprises a bottom plate, two support plates, a rotating shaft, a connecting block and a fixing pipe, the two support plates are symmetrically arranged on two sides of the upper end face of the bottom plate and are connected through the rotating shaft, the connecting block is rotatably connected to the rotating shaft and located between the two support plates, one side, away from the bottom plate, of the connecting block is connected with the fixing pipe, and therefore when the bottom plate is fixed on the ground or a bridge frame, the upper end and the lower end of the cable penetrate through the fixing pipe.

Preferably, one end of the fixed pipe extends out of the hollow connector along the axis of the fixed pipe; a pressing groove pressed into the cable is formed in the side face, away from the connecting block, of one end of the fixing pipe along the axis of the fixing pipe, and the pressing groove extends to the top end of the hollow connector along the axis direction of the fixing pipe;

the fixing pipe is characterized in that a fixing groove is radially formed in the side face, away from the connecting block, of one end of the fixing pipe, two connecting pieces are arranged in the fixing groove, the axis of the fixing pipe is opposite to the axis of the fixing pipe, the pressing groove is located in the center of the fixing groove and divides the fixing groove into two parts, the connecting pieces are symmetrically located on two sides of the pressing groove, and the fixing pipe is fixed by fastening nuts after sequentially penetrating through the two connecting pieces through fastening screws.

Preferably, two bolt holes are symmetrically formed in the hollow connector, so that the rubber sleeve is fixedly connected with the hollow connector through the bolts.

The cable mounting piece for the bridge has the advantages that:

1. in the structure of the utility model, the connection design of the bottom plate and the ground or the bridge frame is convenient for disassembly and later maintenance and replacement of the rubber sleeve;

2. the combined design of the cable fixing component and the rubber sleeve ensures that the rubber sleeve on the cable is convenient to disassemble and operate, the maintenance cost is low and the working efficiency is high when the rubber sleeve needs to be disassembled or replaced;

3. the rubber sleeve is coated with the anticorrosive material, so that the service cycle of the rubber sleeve is prolonged, and the maintenance cost is reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:

FIG. 1 is a perspective view of a cable mount for a bridge according to the present invention in use;

FIG. 2 is a schematic view of a cable mount for a bridge according to the present invention mounted on a cable;

FIG. 3 is an enlarged view of part A of FIG. 2;

FIG. 4 is an enlarged view of the portion B of FIG. 2;

FIG. 5 is a schematic structural view of the cable fixing assembly;

wherein:

a rubber bushing 1;

the cable fixing component 2, the bottom plate 21, the support plate 22, the rotating shaft 23, the connecting block 24, the fixing pipe 25, the hollow connecting head 251, the bolt hole 251a, the pressing groove 252, the fixing groove 253 and the connecting sheet 254;

fixed block 3, stay cord 4, ground 5, crane span structure 6.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

To facilitate the replacement of a casing on a cable, the present invention provides, as shown in figures 1 to 4, a cable mount for a bridge, comprising: the cable fixing device comprises a rubber sleeve 1, two cable fixing components 2, two fixing blocks 3 and a pull rope 4, wherein the rubber sleeve 1 is coated outside a cable 1a, two ends of the cable 1a extend out of the rubber sleeve 1 and are fixed through the cable fixing components 2, and the two ends of the cable 1a are fixed on the ground 5 and a bridge frame 6 respectively through the cable fixing components 2; one fixing block 3 is positioned at the upper part of the rubber sleeve 1, and the bottom end surface of the fixing block is connected with the upper end of the pulling rope 4, the other fixing block 3 is connected with the cable fixing component 2 positioned at the lower part of the cable 1a by a screw, and the lower end of the pulling rope 4 is fixed on the fixing block 3 positioned on the cable fixing component 2;

the upper end and the lower end of the rubber sleeve 1 are respectively in threaded connection with the two cable fixing assemblies 2, so that the rubber sleeve 1 coated with the cable 1a is fixed on the cable fixing assemblies 2, when the rubber sleeve 1 needs to be replaced or maintained, the pull rope 4 is pulled, the rubber sleeve 1 positioned on the upper portion of the cable 1a slides to the lower portion of the cable 1a under the combined action of the pull rope 4 and the fixing block 3 on the upper portion of the pull rope, and then the threaded connection between the two ends of the rubber sleeve 1 and the cable fixing assemblies 2 is cancelled.

In the specific embodiment, according to fig. 5, the cable fixing assembly 2 includes a bottom plate 21, two support plates 22, a rotating shaft 23, a connecting block 24, and a fixing tube 25, wherein the two support plates 22 are symmetrically disposed on two sides of the upper end surface of the bottom plate 21 and connected through the rotating shaft 23, and the connecting block 24 is rotatably connected to the rotating shaft 23 and located between the two support plates 22; one side of the connecting block 24, which is far away from the bottom plate 21, is connected with the fixing pipe 25, so that when the bottom plate 21 is fixed on the ground or a bridge, the upper end and the lower end of the cable both pass through the fixing pipe 25.

In a specific embodiment, one end of the fixed tube 25 extends out of the hollow connector 251 along its axis; a pressure groove 252 for pressing in a cable 1a is formed in the side surface of one end, away from the connecting block 24, of the fixing pipe 25 along the axis of the fixing pipe, and the pressure groove 252 extends to the top end of the hollow connecting head 251 along the axis direction of the fixing pipe 25;

a fixing groove 253 is formed in the side surface of one end, which is far away from the connecting block 24, of the fixing tube 25 along the radial direction, two connecting pieces 254 which are oppositely arranged along the axis of the fixing tube 25 are arranged in the fixing groove 253, the pressing groove 252 is positioned in the center of the fixing groove 253 and divides the fixing groove 253 into two parts, the two connecting pieces 254 are symmetrically positioned on two sides of the pressing groove 252, after sequentially penetrating through the two connecting pieces 254 through fastening screws, the fixing is carried out by using fastening nuts, so that the upper end of a cable 1a penetrates through the fixing tube 25, the lower end of the cable 1a is pressed into the fixing tube 25 connected with the end through the pressing groove 252, and then the cable is fixed in the fixing tube 25 by passing through the two connecting blocks 24 through the fastening screws and then being fixed through the fastening nuts, and the cable 1a is convenient to disassemble due to the structure;

in a specific operation process, after the cable 1a passes through the fixing tube 25 connected to the upper end of the cable 1a, the two connecting pieces 254 are also fixed by fastening screws and fastening nuts, i.e., locked in the pressing grooves 252, so as to prevent the cable 1a from sliding out of the fixing tube 25.

In a specific embodiment, two bolt holes 251a are symmetrically formed in the hollow connector 251, so that after the rubber sleeve 1 is sleeved on a cable, bolts sequentially pass through the two bolt holes 251a from the rubber sleeve 1, and are fixed by nuts, that is, the rubber sleeve 1 is wrapped outside the cable, and the connection between the rubber sleeve 1 and the cable fixing component 2 is also completed.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A cable installed part for a bridge frame is characterized in that: the cable fixing device comprises a rubber sleeve (1), two cable fixing components (2), two fixing blocks (3) and a pull rope (4), wherein the rubber sleeve (1) is coated outside a cable, and two ends of the cable extend out of the rubber sleeve (1) and are fixed through the cable fixing components (2); one fixing block (3) is positioned at the upper part of the rubber sleeve (1), the bottom end surface of the fixing block is connected with the upper end of the pull rope (4), the other fixing block (3) is connected to the cable fixing component (2) positioned at the lower part of the cable through a screw, and the lower end of the pull rope (4) is fixed on the fixing block (3) positioned on the cable fixing component (2);

the upper end and the lower end of the rubber sleeve (1) are respectively in threaded connection with the two cable fixing assemblies (2).

2. A cable mount for a bridge as defined in claim 1, wherein: the cable fixing component (2) comprises a bottom plate (21), two support plates (22), a rotating shaft (23), a connecting block (24) and a fixing pipe (25), wherein the two support plates (22) are symmetrically arranged on two sides of the upper end face of the bottom plate (21) and are connected through the rotating shaft (23), the connecting block (24) is rotatably connected to the rotating shaft (23) and located between the two support plates (22), the connecting block (24) deviates from one side of the bottom plate (21) and is connected with the fixing pipe (25), so that when the bottom plate (21) is fixed on the ground or a bridge, the upper end and the lower end of a cable penetrate through the fixing pipe (25).

3. A cable mount for a bridge as defined in claim 2, wherein: one end of the fixed pipe (25) extends out of the hollow connector (251) along the axis of the fixed pipe; a pressure groove (252) for pressing in a cable is formed in one end side surface, which is far away from the connecting block (24), of the fixing pipe (25) along the axis of the fixing pipe, and the pressure groove (252) extends to the top end of the hollow connecting head (251) along the axis direction of the fixing pipe (25);

fixing grooves (253) are radially formed in the side face, which deviates from the connecting block (24), of one end of the fixing pipe (25), two connecting pieces (254) which are oppositely arranged along the axis of the fixing pipe (25) are arranged in the fixing grooves (253), the pressing grooves (252) are located in the centers of the fixing grooves (253) and divide the fixing grooves (253) into two parts, the connecting pieces (254) are symmetrically located on two sides of the pressing grooves (252), and the two parts are fixed by fastening nuts after sequentially penetrating through the connecting pieces (254) through fastening screws.

4. A cable mount for a bridge as defined in claim 3, wherein: two bolt holes (251a) are symmetrically formed in the hollow connector (251), so that the rubber sleeve (1) is fixedly connected with the hollow connector (251) through bolts.